This standard specifies the most basic requirements for the design and manufacture of mechanical parking equipment to prevent accidents that may cause personal injury or damage to the vehicles stored inside. This standard applies to all types of mechanical parking equipment. The safety requirements specified in this standard do not apply to all the hazards of mechanical parking equipment. They only apply to the hazards described in the hazard list of this standard. GB 17907-1999 General safety requirements for mechanical parking equipment GB17907-1999 standard download decompression password: www.bzxz.net

GB17907—1999
This standard is a general standard for the safety of mechanical parking equipment. When using this standard, various types of mechanical parking equipment should be supplemented and specified according to the principles and requirements of this standard and their characteristics. Various types of mechanical parking equipment can formulate corresponding safety standards according to the principles of this standard.
Appendix A and Appendix B of this standard are appendices to the standard, and Appendix C is a reminder of the record. This standard is proposed by the State Machinery Industry Bureau. This standard is under the jurisdiction of the Beijing Hoisting and Conveying Machinery Research Institute. The drafting units of this standard: Mechanical Science Research Institute and Beijing Hoisting and Conveying Machinery Research Institute. Beijing Municipal Public Security Traffic Management Bureau, Hangzhou Xizi Stereoscopic Parking Garage Co., Ltd., Sichuan Donghua Machinery Factory, Shenzhen Yihe Industrial Co., Ltd., China Shipbuilding Corporation Seventh Research Institute 713 Institute, Chengde Huayi Mechanical Garage Group Co., Ltd., Guangzhou Elevator Enterprise Group Guangzhou Hoisting and Conveying Machinery Industry Company, Changsha Construction Machinery Research Institute of the Ministry of Construction, Second Design Institute of the Ministry of Machinery Industry, Shanghai Tiandi Complete Equipment Manufacturing Co., Ltd., Hunan Changhua Stereoscopic Parking Equipment Co., Ltd., Jiangxi Dacheng Industrial Group Co., Ltd., and Shanghai Jiaotong University participated in the drafting.
The main drafters of this standard are: Yu Ning, Wan Li, Kang Baohe, He Tongmin, Le Junde, Bu Xunbin, Miao Weishi, Cheng Dong, Hu Zhixue, Deng Xingheng, Yu Lekang, Li Zongye, Wu Guangming, Xue Xixian, Luo Jian, Ye Qingtai. 828
1 Scope
National Standard of the People's Republic of China
General safety requirements for mechanical parking systems
Mechanical parking systems -General safety requirementGB 17907—1999
This standard specifies the most basic requirements for the design and manufacture of mechanical parking systems to prevent accidents that may cause personal injury or damage to the vehicles stored inside.
This standard applies to all types of mechanical parking systems. The safety requirements specified in this standard are not for all the hazards of mechanical parking systems, but only for the hazards described in the hazard list of this standard.
2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB2894—1996Safety signs
GB/T3766-1983General technical conditions for hydraulic systemsGB/r 3805--1993
GB/T 3811-1983
GB/T 5972—1986
GB/T 6067-1985
GB/T 7935-1987
GB/T 8918---1996
Extra-low voltage (ELV) limits
Crane design specifications
Practical specifications for inspection and scrapping of wire ropes for lifting machinerySafety regulations for lifting machinery
General technical conditions for hydraulic components
Wire ropes
Basic concepts and general design rules for mechanical safety Part 2: Technical principles and specifications GB/T GB 15706.2—1995
Guidelines for the use of safety signs
GB 16179—1996
GB 16754
—1997
GB 50067—1997
GB 50168—1992
GB 50169.--- 1992
GB 50171—1992
Design principles for mechanical safety emergency stop
Design fire protection specifications for garages, repair garages and parking lotsConstruction and acceptance specifications for cable lines for electrical installation projectsConstruction and acceptance specifications for grounding devices
Electrical installation projects
Construction and acceptance specifications for panels, cabinets and secondary circuit wiring for electrical installation projectsGBJ17—1988 Code for steel structure design
JB/T8713—1998 Categories, types and basic parameters of mechanical parking equipment3 Hazard list
See Table 1 for the hazards involved in this standard.
Approved by the State Administration of Quality and Technical Supervision on November 23, 1999 and implemented on June 1, 2000
4 Safety requirements and measures
4.1 Safety signs
GB 17907—1999
Possible injuries to people when the equipment is stationary or running Accidental falling or damage of vehicles
Overall or partial loss of stability of the load-bearing metal structure Fatigue damage of the load-bearing metal structure and transmission device parts Faults in the mechanical transmission system
Faults in the electrical, hydraulic or pneumatic system Fire
Appropriate safety signs (including prohibition signs, warning signs and prompt signs) should be set up in conspicuous places such as the entrances and exits, operation rooms, and maintenance sites of mechanical parking equipment, and should comply with the provisions of GB2894 and GB16179. 4.2 Safety requirements for the design and configuration of metal structures 4.2.1 Load-bearing metal structures
Load-bearing metal structures shall comply with the requirements of GBJ17 and GB/T3811 to ensure that they have sufficient strength, rigidity, and local and overall stability.
4.2.2 Entrances and exits
4.2.2.1 Entrance and exit dimensions
The width of the entrance and exit of a mechanical parking system shall be greater than the width of the stored vehicle plus 500mm, but not less than 2250mm. The height of the entrance and exit of a parking system that only accommodates cars shall not be less than 1600mm, and that of a parking system that accommodates passenger vehicles (Class K in JB/T8713, with a vehicle height of less than 2050mm) shall not be less than 2150mm, and that of a parking system that accommodates both people and vehicles shall not be less than 1800mm. 4.2.2.2 Distance between the parking surface of the carrier (or vehicle loading plate) and the ground of the entrance and exit The horizontal distance between the end of the parking surface of the carrier (or vehicle loading plate) and the ground of the entrance and exit shall not exceed 40 mm, and the vertical height difference shall not exceed 50 mm.
4.2.3 Dimensions of pedestrian passages
In mechanical parking equipment, the width of pedestrian passages shall generally not be less than 500 mm, and the height shall generally not be less than 1800 mm. 4.2.4 Parking spaces
4.2.4.1 Dimensions of parking spaces
Width: For vehicles transported into the parking space by a carrier, it shall be the full width of the vehicle plus 150 mm; for vehicles driving into the parking space by themselves, it shall not be less than the full width of the stored vehicle plus 500 mm.
Length: - not less than the full length of the stored vehicle plus 200 mm. Height: - not less than the sum of the height of the stored vehicle and the height required for the slight lifting and lowering when storing and retrieving the vehicle plus 50 mm, but not less than 1600 mm.
4.2.4.2 Materials and performance of parking space vehicle loading structure The parking space vehicle loading structure shall be made of non-combustible materials and shall have sufficient strength and rigidity. 4.2.4.3 Parking space load
When calculating the parking space, the weight of the car (see Article 5.1 of JB/T8713-1998) shall be distributed to the front and rear axles at a ratio of 6:4, and the concentrated load shall be calculated on the side with greater force.
4.3 Safety requirements for mechanical equipment
GB179071999
4.3.1 Mechanical equipment shall comply with the requirements of GB/T3811, and the working level of each mechanism shall be divided to ensure that the mechanical drive components have sufficient driving capacity, the mechanical transmission components have sufficient strength, rigidity, and motion stability, and the mechanical working components have sufficient strength, life and normal working ability.
4.3.2 Carrier
4.3.2.1 The main parts of the carrier structure shall be made of non-combustible materials. Under the premise of not hindering safety, the top plate, side fence and door of the carrier can be omitted. When side fences are provided, their height shall not be less than 1400mm. 4.3.2.2 When the carrier is started along the direction of travel of the parked car or in an inclined state, a wheel anti-skid device shall be provided on the panel of the vehicle carrier. 4.3.3 Wire rope
4.3.3.1 The wire rope used for mechanical parking equipment shall comply with the requirements of GB/T8918. Line contact wire rope is preferred. 4.3.3.2 The safety factor of the wire rope shall not be less than the requirements of Table 2. Table 2
Working conditions
Safety factor
Unmanned mode
Quasi-unmanned mode
Note: Unmanned mode refers to a mode in which people do not enter the interior of the equipment and only move the car; quasi-unmanned mode refers to a mode in which the vehicle is driven into the equipment and only the car is moved after the person leaves; human-car sharing mode refers to a mode in which people and cars stay in the carrier and move together. 4.3.3.3 Ensure that the wire rope cannot fall off the pulley, and the safety requirements for the fixed connection of the wire rope end should comply with the provisions of GB6067.4 The maintenance of the wire rope shall comply with the provisions of GB/T6067, and its scrapping shall comply with the provisions of GB/T5972. 4.3.4 Chain
4.3.4.1 The chain used in mechanical parking equipment shall comply with the corresponding chain standards; the safety factor of the chain shall not be less than the requirements of Table 2. 4.3.4.2 Mechanical parking equipment shall have measures to ensure that the chain cannot fall off the sprocket. 4.3.4.3 The chain shall be scrapped when any of the following conditions occur: a) Visible cracks;
b) Looseness at the interference fit;
c) The relative wear elongation of the chain reaches 3%. 4.3.5 Drum
4.3.5.1 The fixing device at the tail end of the wire rope on the drum shall have anti-loosening or self-tightening properties. 4.3.5.2 The ratio of the nominal diameter of the drum to the diameter of the wire rope shall not be less than 20, and for the type of people and vehicles, it shall not be less than 40. 4.3.5.3 The drum shall be scrapped when any of the following conditions occur: a) cracks;
b) the wall of the drum is worn to 20% of the original wall thickness.
4.3.6 Pulley
4.3.6.1 The ratio of the nominal diameter of the pulley used in the main part to the diameter of the wire rope shall not be less than 20, and for the type of people and vehicles, it shall not be less than 40.
4.3.6.2 The pulley shall be smooth and smooth, and shall not have defects that damage the wire rope. 4.3.6.3 The pulley shall have a device to prevent the wire rope from jumping out of the rope groove. 4.3.6.4 Metal cast pulleys shall be scrapped if any of the following conditions occur: a) cracks;
b) radial wear of rope groove reaches 50% of the wire rope diameter; c) wear of rope groove wall thickness reaches 20% of the original wall thickness; d) uneven wear of rope groove reaches 3mm;
e) other defects that damage the wire rope.
GB 17907—1999
4.3.7 Wheels and guide wheels running on rails shall be scrapped if any of the following conditions occur: a) cracks;
b) wear of wheel flange thickness reaches 50% of the original thickness; c) bending deformation of wheel flange thickness reaches 20% of the original thickness; d) wear of tread thickness reaches 15% of the original thickness; e) when the running speed is lower than 50m/min, the roundness error exceeds 1mm; when the running speed is higher than 50m/min, the roundness error exceeds 0.5mm.
4.3.8 Braking system
4.3.8.1 The main engine must be equipped with a braking system. The braking system should use a normally closed brake. The braking torque of the brake that controls the lifting movement should not be less than 1.5 times the braking torque of the rated load. 4.3.8.2 The brake parts should be scrapped when any of the following conditions occur: a) cracks;
b) the thickness of the brake friction pad is worn to 50% of the original thickness; c) the spring has plastic deformation;
d) the diameter of the small shaft or shaft hole is worn to 5% of the original diameter. .4.3.8.3 The brake should have a thermal capacity that meets the operating frequency. 4.3.8.4 The brake should have the ability to compensate for the wear of the brake friction pad. 4.3.8.5 Braking wheel
4.3.8.5.1 The braking friction surface of the brake wheel should not have defects that hinder the braking performance or be contaminated with oil. 4.3.8.5.2 The brake wheel shall be scrapped when any of the following conditions occur: a) cracks;
b) the wheel rim thickness wear reaches 20% of the original thickness (including uniform wear and uneven wear); c) the wheel rim is thinned by 20% after rounding. 4.4 Safety requirements for hydraulic systems
4.4.1 The design of the hydraulic system shall comply with the requirements of GB/T3766 and GB/T7935. 4.4.2 The hydraulic system shall be equipped with an overpressure protection device, which can automatically operate when the working pressure reaches 1.25 times the rated pressure. The hydraulic lifting system shall be equipped with a safety protection device to prevent the vehicle loading plate from falling due to loss of pressure in the hydraulic system. 4.4.3
The hydraulic system shall use oil according to the design requirements and change the oil regularly according to the instructions. 4.4.4
4.4.5 The safety factors of the plunger, cylinder, hydraulic steel pipe and hydraulic rubber pipe are shown in Table 3. Table 3
Parts and working conditions
Plunger, cylinder, hydraulic steel pipe
Hydraulic rubber pipe
4.5 Safety requirements for electrical equipment
Plastic materials
Unmanned mode
Quasi-unmanned mode
Car-riding mode
Safety factor
4.5.1 General requirements
The electrical system of mechanical parking equipment should ensure accurate and reliable transmission and control performance, and can prevent dangers caused by the electrical equipment itself or dangers caused by damage to the electrical equipment due to mechanical movement. The design of electrical equipment should comply with the requirements of GB/T3811, and the installation of electrical equipment must comply with the relevant provisions of GB50168, GB50169 and GB50171.
4.5.2 Power supply and circuit
4.5.2.1 Power supply
GB 17907—1999
Mechanical parking equipment should be powered by a dedicated feeder. For AC 380V power supply, when soft cables are used for power supply, a dedicated grounding wire should be prepared.
4.5.2.2 Main circuit breaker for dedicated feeder
A main circuit breaker should be installed at the inlet end of the dedicated feeder on the mechanical parking equipment, and its outlet should not be connected to other equipment. 4.5.2.3 Main circuit breaker for mechanical parking equipment A main circuit breaker should be installed on the mechanical parking equipment. It should have the function of disconnecting the circuit in the event of a short circuit. 4.5.2.4 Main line contactor
A main line contactor should be installed on the mechanical parking equipment, which should be able to disconnect the power circuit or control circuit of all mechanisms. When the air switch of the main mechanism is already installed on the parking equipment, the main line contactor may not be installed. 4.5.2.5 Control circuit
The control circuit of mechanical parking equipment shall ensure that the control performance meets the requirements of mechanical and electrical systems, and shall not have wrong circuits, parasitic circuits and false circuits.
4.5.2.6 Remote control circuit and automatic control circuit If any mechanism controlled by the remote control circuit and automatic control circuit fails to control, the parking equipment shall stop working immediately. 4.5.3 Wires, cables and electrical wiring
4.5.3.1 When using multi-strand single-core wires, the cross-section shall not be less than 1.5mm2; when using multi-strand multi-core wires, the cross-section shall not be less than 1.0mm. For electronic devices, servo mechanisms, sensor elements, etc., the cross-section of the connecting wires that can be confirmed to be safe and reliable is not specified. For the wiring inside the electrical room, control room, control panel, and protection box, the small-section wires of the main circuit and the wires of the control circuit can use plastic insulated wires. 4.5.3.2 For mechanical parking equipment working outdoors, the wires should be laid in metal pipes, and the metal pipes should be treated with anti-corrosion. If metal wire ducts or metal hoses are used instead, they must have good rain and corrosion resistance. 4.5.3.3 For mechanical parking equipment working indoors, wires should be laid in wire ducts or metal pipes, and cables can be laid directly. Protective measures should be taken in places where there is mechanical damage, chemical corrosion or oil immersion. 4.5.3.4 Wires of different voltage levels, AC and DC should be separated when passing through pipes. When all pipes are passed through, the pipe mouth should have a guard to prevent the wires from abrading; when passing through metal pipes, the pipe mouth should be free of burrs and sharp edges. 4.5.4 Protection of motors
4.5.4.1 Motors directly connected to the power supply should be protected against short circuits and phase loss. 4.5.4.2 Motors directly connected to the power supply should be protected against overload by a manually reset automatic circuit breaker, which should be able to cut off all power supplies to the motor.
4.5.5 Sockets
4.5.5.1 The power supply of the socket should be separated from the power supply of the parking equipment. 4.5.5.2 The socket should be 2P+T, 250V, powered directly by the main power supply, and comply with the provisions of GB/T3805. 4.5.6 The safety requirements for major electrical components must comply with the provisions of GB6067. Outdoor installations should have measures to prevent the intrusion of moisture, water accumulation, rain, snow, mortar, dust and other debris.
4.5.7 Electrical protection devices
4.5.7.1 Main isolating switch
A main isolating switch should be installed at the inlet of the mechanical parking equipment, or other isolation measures should be taken. 4.5.7.2 Emergency stop switch
An emergency stop switch must be installed at a convenient place for the operation of the mechanical parking equipment, which can quickly cut off the power and control power supply in an emergency. However, the power supply of the power socket, lighting, ventilation, fire protection and alarm circuits should not be cut off. 4.5.7.3 Short-circuit protection
A main circuit breaker should be installed on the parking equipment to achieve short-circuit protection. 4.5.7.4 Undervoltage protection, zero potential protection and overvoltage protection 833
GB 17907—1999
Mechanical parking equipment must be equipped with undervoltage protection, zero potential protection and overvoltage protection. 4.5.7.5 Grounding
4.5.7.5.1 The metal structure of the parking equipment and the metal casing of all electrical equipment, pipe troughs, cable metal sheaths and the low-voltage side of the transformer should be reliably grounded. Keep the grounding good during maintenance. 4.5.7.5.2 Neutral wire and grounding wire shall be set separately. Grounding resistance shall not be greater than 4Ω. 4.5.7.5.3 Grounding wire connection shall comply with the requirements of GB50169. 4.5.7.6 Insulation resistance
The insulation resistance between conductors and between conductors and ground must be greater than 1000Ω/V, and its value shall not be less than: a) 0.5MQ for power circuit and electrical safety device circuit; b) 0.25M2 for other circuits (control, lighting, signal, etc.). 4.5.8 Lighting, signal
4.5.8.1 Mechanical parking equipment shall be equipped with normal lighting, and portable lighting shall be provided when necessary. 4.5.8.2 A dedicated circuit shall be provided for lighting. The power supply shall be tapped from the incoming line terminal of the main circuit breaker of the mechanical parking equipment. When the main circuit breaker cuts off the power supply, the lighting shall not be powered off. Each lighting circuit shall be protected by a circuit breaker. It is strictly forbidden to use metal structures as the loop of the lighting circuit. 4.5.8.3 The lighting in the driveway, near the entrance and exit, and in the places where people enter and exit must have sufficient illumination to ensure safety. The illumination in the operation room should not be less than 301x, and the illumination in the machine room, electrical room, etc. should not be less than 51x. :4.5.8.4 Signal: Mechanical parking equipment should have a signal indicating the main power supply disconnection and connection status, and a fault signal or alarm signal should be set when necessary. 4.6 Safety protection device
4.6.1 Installation
All kinds of parking equipment should be equipped with safety protection devices in accordance with the requirements of Appendix B (Appendix of the standard), and should be inspected and maintained in time during use to maintain normal working performance. If any abnormal performance is found, it should be repaired or replaced immediately. 4.6.2 Safety protection device and requirements
4.6.2.1 Emergency stop switch
An emergency stop switch should be set to stop the operation of the parking equipment immediately in the event of an abnormal situation. The design of the emergency stop switch shall comply with the requirements of GB16754
4.6.2.2 Device to prevent over-limit operation
When the in-place switch fails, the over-travel limit switch shall stop the equipment from working. 4.6.2.3 Vehicle length, width and height limit device The vehicle length, width and height of the vehicle entering the mechanical parking equipment shall be detected. When the vehicle size exceeds the suitable parking size, the machine shall not operate or alarm.
4.6.2.4 Vehicle blocking device
A vehicle blocking device with a height of more than 25mm shall be set on the vehicle loading plate along the direction of vehicle travel. When other effective measures are adopted to block the vehicle, this vehicle blocking device may not be set.
4.6.2.5 Vehicle and person mistaken entry detection device
Parking equipment without a garage door shall be equipped with a vehicle and person mistaken entry detection device. When other vehicles or people enter during the operation of the equipment, the machine shall be stopped immediately to ensure safety. 4.6.2.6 Detection device for the position of the car on the loading plate A detection device should be installed. When the car is not parked in the correct position on the loading plate, the parking equipment cannot operate. However, this article does not apply to situations where the operator confirms safety.
4.6.2.7 Interlocking safety inspection device for entrance and exit doors and fences For parking equipment with doors or fences at the entrance and exit, an interlocking safety inspection device should be installed. When the carrier is not parked in the correct position, the door or fence at the entrance and exit of the parking space cannot be opened; when the door or fence is in the open state, the carrier cannot operate. 4.6.2.8 Anti-pinch device for automatic doors
GB 17907-1999
In order to prevent the automatic door from accidentally pinching the car when the car enters and exits the mechanical parking equipment, an anti-pinch device should be installed on the automatic door. 4.6.2.9 Automatic detection device for preventing reselection
To avoid parking a car in a parking space where a car has already been parked, a device for detecting the parking space status (whether there is a car) should be installed, or other effective measures to prevent overlapping should be taken.
4.6.2.10 Device to prevent the car carrier from falling
After the car carrier moves to the parking space, a device to prevent the car carrier from falling suddenly for some reason should be installed. 4.6.2.11 Warning device
When a car enters or exits the parking equipment, there should be necessary warning signals. 5 Safety requirements for the use environment of parking equipmentWww.bzxZ.net
5.1 Ventilation facilities
The indoor environment equipped with mechanical parking equipment should be equipped with good ventilation and emergency lighting. 5.2 Lighting
The environment equipped with mechanical parking equipment should have good lighting and emergency lighting. 5.3 Drainage
To ensure that there is no water accumulation inside and below the parking equipment, complete and effective drainage facilities should be equipped. 5.4 Fire protection
The environment where mechanical parking equipment is installed shall comply with the fire protection requirements of GB50067. 5.5 Earthquake and typhoon resistance
Buildings equipped with mechanical parking equipment shall comply with relevant national standards and have earthquake and typhoon resistance. 6 Usage information
6.1 In the usage information submitted to the user, the user shall be informed and warned of the residual risks that cannot be eliminated or fully reduced by design and for which the safety protection devices are ineffective or incompletely effective (see Chapter 5 of GB/T15706.2--1995). 6.2 The user shall be provided with a detailed description of management rules and usage and maintenance, and the content of which can be referred to Appendix C (Reminder Appendix) of this standard.
6.3 The contents of the instruction manual shall include:
a) Transportation and storage information;
b) Self-information;
c) Usage and maintenance information.
6.4 Each product shall be marked in a conspicuous position, which shall include at least the following: a) manufacturer's name and address;
b) type mark and product name;
c) main technical parameters;
d) manufacturing date and number.
For wording, see Table A1.
Very strict, it must be done this way
GB 17907---1999
Appendix A
(Standard Appendix)
Explanation of the text description of this standard
"Must"
Strict, it is required to do so under normal circumstances. A slight choice is allowed. It is required to do so first when conditions permit. It should be done in general, but it is difficult to do so rigidly due to economic conditions and other reasons. It is allowed to do so under certain conditions
"Should"
"Should" or "Generally"
"Should try to"
“May”
“Strictly prohibited”
“Should not” or “Must not”
“Should not”
The wording for clauses that must be implemented according to the specified standards, specifications or other relevant regulations should be “implemented in accordance with…” or “in compliance with the requirements of…”. A2
The wording for clauses that do not necessarily have to be implemented according to the specified standards, specifications or other regulations should be “refer to” Appendix B
(Appendix to the standard)
Requirements for safety protection devices on various types of mechanical parking equipment Various types of parking equipment should be equipped with safety protection devices according to the requirements of Table B1. B1
Name of safety protection device
Emergency stop switch
Device to prevent over-limit operation
Device to limit the length, width and height of the vehicle
Vehicle blocking device
Device to detect the wrong entry of people and vehicles
Device to detect the position of the vehicle on the vehicle loading plate
Interlocking safety inspection device for entrance and exit doors and fences
Automatic detection device to prevent heavy delivery
Device to prevent the vehicle loading plate from falling
Warning device
Transverse type
Inspector
Circulation type
Inspector
Circulation type
Circulation type
Moving type
Inspector
Stacking type
Lifting type
Lifting type
C1 Management rules
C1.1 Division of work and responsibilities
GB 17907--1999
Appendix C
(Appendix of reminder)
References on management rules and use and maintenance C1.1.1 Except for the specified operators, other personnel shall not operate on their own. C1.1.2 Regardless of whether the operator is full-time or not, the responsible person shall conduct safety management during equipment operation and routine inspections before and after operation.
C1.1.3 Matters that operators must comply with:
a) Operation is not allowed after drinking;
b) Safety must be confirmed in advance before the equipment is put into operation; c) The person who deposits the vehicle should be clearly informed of the safety precautions that should be observed. C1.2 Safety of people and vehicles
C1.2.1 Signs of the size and weight of suitable vehicles to be parked The size, weight and other precautions of suitable vehicles to be parked are marked in a conspicuous location near the entrance and exit of the equipment. C7.2.2 Restrictions on entry
The parking equipment management personnel should prohibit vehicles that do not meet the requirements of C1.2.1 from entering the parking lot. C7.2.3 Safety signs and precautions
Precautions that the person who deposits the vehicle should comply with should be marked in a conspicuous location. If necessary, they should be communicated to the person who deposits the vehicle verbally. C2 Inspection and maintenance
C2.1 Inspection
C2.1.1 Regular inspections should be carried out according to the frequency of work, but not less than once a month. -~ Generally include: a) Technical performance of normal operation of parking equipment; b) All safety and protective devices;
c) Brake performance and wear of parts; d) Wear of wire rope and fixation of tail end; e) Wear, deformation and elongation of chain. C2.1.2 Regular inspections should be carried out according to the frequency of work, but not less than once a year. Generally include: a) Contents of regular inspections in C2.1.1; b) Deformation, cracks, corrosion of metal structures and connection conditions of welds, rivets, bolts, etc.; c) Wear, cracks, deformation, etc. of main parts; d) Reliability and accuracy of indicating devices;
e) Power system and controller, etc.
C2.2 Maintenance
C2.2.1 The performance and materials of the parts replaced by maintenance shall not be lower than the original parts. C2.2.2 When structural parts need to be welded, the materials and welding rods used should meet the requirements of the original structural parts, and the welding quality should meet the relevant requirements. C2.2.3 Parking equipment shall not be repaired or maintained when it is in working condition.
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