GB 28755-2012Safety rules for simple lifts (English PDF)

5.1.1 General requirements

5.1.1.1 Simple lift the counterweight or Ping Heng weight of the cargo box should be mounted in the same hoistway.

5.1.1.2 wells should be simple lift private, shall not be installed nothing to do with the simple lift facilities in the hoistway. If the well is set at people Members can reach the space above, the bottom surface of the hoistway pit should be at least 5000N/m2 design load, and.

a) the counterweight (or counterweight) buffer attached to extend to the solid pier with the solid surface; or

b) counterweight (or counterweight) mounted on a predetermined downlink comply

9.3 overspeed protection device.

5.1.2 Closed hoistway

5.1.2.1 closed Simple lift wells should be non-porous walls, floor and ceiling completely closed up. Allow only.

a) layer, a door opening;

b) access door trapdoor opening;

c) the case of fire, smoke and gas exhaust hole;

d) between the hoistway and the machine room is necessary functionality opening.

5.1.2.2 access door trapdoor 5.1.2.2.1 access doors and trap doors should be non-porous, its mechanical strength is not less than the landing door. 5.1.2.2.2 access door trapdoor shall open toward the inside of the hoistway. 5.1.2.2.3 access doors, trap doors shall be fitted with a key to open the lock, when the access door and open the trapdoor, without a key can also Its close and lock. Access door locked even in case, should not use a key to open the door from inside the hoistway. 5.1.2.2.4 all access doors, the doors should be equipped with a trap electrical interlocks to ensure that only a simple lift all overhaul Doors, trap doors are closed to start. Electrical interlocks should meet the safety contacts in the form of

8.5 predetermined.

5.1.3 Hoistway walls, floor and roof

5.1.3.1 hoistway structure should be able to withstand at least.

a) applying a load driving apparatus;

b) stop layer for protecting the load generated by the operation means;

c) operation of the downlink momentary overspeed protective device via a load applied to the guide means;

d) generating load operation of the buffer;

e) the cargo loading and unloading load generated.

5.1.3.2 hoistway wall, floor and ceiling should be constructed of materials, non-combustible solid, this material should not itself contribute to the generation of dust, and Should have sufficient mechanical strength. with a force of 300N, acting vertically on either side in the shaft wall at any position, and uniformly distributed Circular or square area of 5cm2, shaft wall shall.

a) without permanent deformation;

b) no greater than the elastic deformation of 15mm.

5.1.4 Headspace hoistway

5.1.4.1 headspace Traction elevator simple 5.1.4.1.1 counterweight when fully compressed in its buffer, should satisfy the following four conditions.

a) the length of the cargo box guide means should provide further guidance not less than 0.1m stroke;

b) the distance between the top of the cargo box stand on a plane corresponding to the top position of the shaft of not less than 1.0m;

c) the free vertical distance between the lowest hoistway top member and the top member fixed to the top of the cargo apparatus is not less than 0.1M;

d) above the loading space should be sufficient space, the size of the rectangular space to accommodate a 0.5m × 0.6m × 0.8m is Accurate, REN Yiping can be placed face down. 5.1.4.1.2 When the cargo is completely pressed in its buffer, the length of the counterweight guides should provide further guidance to not less than 0.1m stroke.

5.1.4.2 forced headspace simple lift 5.1.4.2.1 When the cargo is located on the limit position, should also meet the four conditions stipulated 5.1.4.1.1. 5.1.4.2.2 When the cargo is completely pressed in its buffer, counterweight (if any) should be able to provide a guide means into a length of not less than 0.1m of Step guided trip.

5.1.4.3 simple direct acting hydraulic lift headspace When the plunger reaches the extended extreme position, it should also meet the four conditions stipulated 5.1.4.1.1. Simple headspace rack gear lifts 5.1.4.4 5.1.4.4.1 When the cargo is located on the limit position, should also meet the four conditions stipulated 5.1.4.1.1. 5.1.4.4.2 When the cargo is completely pressed in its buffer, counterweight (if any) should be able to provide a guide means into a length of not less than 0.1m of Step guided trip.

5.1.5 Hoistway pit facilities and pit space

5.1.5.1 pit facility 5.1.5.1.1 channel should be set a lower shaft pit, the pit should be kept clean. In addition to base and drainage means and the guide means to a buffer In addition, the bottom of the pit should be smooth, not seepage. Drainage should take measures to prevent reverse flow of water of the bottomless pit. 5.1.5.1.2 the pit should be set.

a) stop means when the door is opened to the pit floor and are accessible on the pit floor, and to meet the requirements of 9.8.2;

b) fixing the lighting device and the switch, power outlet independent;

c) fixing the ladder is not a simple operation space protrudes elevator, except for the pit depth is not more than 1.2m.

5.1.5.2 pit space When the cargo box in its fully compressed buffer simple or direct acting hydraulic lift reaches the lowermost position of the plunger retracted, should also be filled Foot following conditions.

a) the minimum distance between the bottom member and the cargo box corresponding to the vertical position of the pit not less than 0.1M;

b) the pit has a sufficient space, the size of the space to accommodate a rectangular of not less than 0.5m × 0.6m × 1.0m of Prevail, REN Yiping can be placed face down. When the pit can not accommodate the rectangular space, the elevator should be provided a simple mechanical devices Position, to prevent the cargo bed person running or falling down when the pit; the mechanism should be provided with efficient electrical interlocks so It can be cut off at the simple lift of the role of electrical safety circuits.

5.2 engine room and maintenance platform

5.2.1 General requirements

5.2.1.1 Simple the elevator drive means and associated equipment should be placed on a special machine room or access platform, allowing only the room or access platform Xu personnel approved to enter.

5.2.1.2 room or maintenance platform may not be used for other purposes than the simple lift.

5.2.1.3 should provide safe passage out of the engine room personnel or maintenance platform that allows exceptional cases into the maintenance by cargo inspection window platform.

5.2.1.4 room or access to internet access channel should be set permanently electrical lighting device, in order to obtain appropriate illuminance.

5.2.1.5 room or access platform should be set.

a) stop means (for internet access only), it is located near the entrance of the maintenance platform, and to meet the requirements of 9.8.2;

b) fixing the lighting device and the switch, power outlet independent;

c) fire fighting facilities (for room only).

5.2.2 Engine room

5.2.2.1 room construction materials should be durable and easy to produce dust, should have a strong structure able to withstand a predetermined load, and Can adapt to all kinds of weather conditions, well ventilated.

5.2.2.2 room should be of sufficient size to ensure the safety of personnel and related equipment for convenient operation, especially for electrical equipment operation.

5.2.2.3 windows and doors should be weather-proof room, computer room door should be locked.

5.2.2.4 hole size on the room floor, under the conditions of use should be minimized to meet. To prevent the object through the opening located above the hoistway Mouth, including the risk of falling through the openings of the cable should be used rims, the rims projecting surface should at least 50mm.

5.2.3 Maintenance Platform

5.2.3.1 When the drive means provided in the pit area, the pit floor as to allow the access platform, and in a suitable service position a mechanical When the apparatus should be provided with efficient mechanical electrical interlocks so that it can in effect; means to prevent personnel in the pit when the cargo run or fall Easy lift off electrical safety circuits.

5.2.3.2 When the drive means is provided in the shaft head, the top of the cargo as to allow access platform and in a suitable service position a mechanical means Is set to prevent the cargo bed when run or fall down on top of the cargo inspection personnel; the mechanism should be provided with efficient electrical interlocks so It can be cut off at the simple lift of the role of electrical safety circuits.

5.2.3.3 When the shaft ceiling provided with a dedicated access platform, the access door should be provided in line with the provisions of 5.1.2.2. Maintenance platform will be set up To fence. Metal structure 6

6.1.1 cargo structure

6.1.1.1 lifts the cargo should be simple rigid structure, in addition to the cargo door, and the necessary maintenance window vent, the other surface of the cargo to be Closed. Cargo must not take the form of a tablet, and other platforms.

6.1.1.2 When the cargo into the maintenance need information from the internet, is provided on the cargo box size should be no less than 0.5m × 0.35m, and the electrical interlock with Maintenance window arrangement.

6.1.1.3 should be installed at least two pairs of guide shoes or guide wheels, guide rollers or guide shoes should be reliable and easy to replace fixed.

6.1.1.4 cargo box walls, roof and the cargo bed, and cargo box structure should have sufficient mechanical strength to withstand normal elevator simple When running, the cargo or impinges on the buffer, or when a load acts downward overspeed protection layer for protecting the device and stop devices.

6.1.1.5 When the top outside edge of the cargo from the hoistway wall free distance exceeds 300mm, the height of the top of the cargo should be added not less than 700mm, an interval of not more than 350mm, a height of not less than a lower skirting board fence of 100mm.

6.1.2 cargo area and the maximum effective nominal weight relationship Cargo area and the maximum effective rated lifting relations to comply with Table 1. Not clear from the simple to the nominal weight of the lifts, Its rated capacity in accordance with Table 1, the maximum effective area of the cargo corresponding to the rated capacity is determined. Table 1 cargo area and the maximum effective nominal weight relationship Rated weight kg Cargo largest effective area m

2 Rated weight kg Cargo largest effective area m2 <=200 1.00 1000 3.60 300 1.35 1200 4.20 400 1.76 5.10 1500 500 2.10 1600 5.35 600 2.40 1800 5.82 700 2.70 6.30 2000 800 3.00 2500 7.50 900 3.30 3000

8.70 NOTE. the intermediate area of its starting weight determined by a linear interpolation.

6.1.3 cargo height Huoxiang clear height of not less than 1800mm.

6.1.4 cargo entrance

7.1.5 Electric landing door interlock

7.1.5.1 Each landing door shall be provided electrical interlocks, in the case of normal operation, if any one layer of layers fan gate or gates Doors open, the cargo should not start or continue to run.

7.1.5.2 electrical landing door interlocks should meet the safety contacts in the form of

8.5 predetermined.

7.1.6 Door mechanical interlocking layer

7.1.6.1 gate layer should be provided a mechanical interlock device, in normal operation, should not be opened landing door (or any door in a fan-layer), unless the goods Car stop or stops in the region of the unlocking of the landing door. Unlocking zone should not exceed the above or below ground level landing 75mm, using the cargo compartment door Gate driver layer, which is allowed to increase the size ...