Safety code for manufacturing and installing sundry elevators

We can see the transportation link called "sundry elevator" in large restaurants or restaurants. This elevator is used to hold small objects. Its floor space will not exceed one square meter, and its height is only about one meter. It is very suitable as a tool for transporting vegetables. You should know that its load can't exceed 300 kilograms, otherwise it may be damaged. When we choose to make a sundry elevator, we must pay attention to whether its safety specifications are qualified or not, otherwise we will waste our materials in vain. Let's introduce the contents of the Safety Code for the Manufacture and Installation of Elevator in Utility Room.

Definition of sundry ladder

Fixed lifting equipment serving a specific floor (usually below the eighth floor). It has a car, and in terms of its size and structure, people are not allowed to enter the car. The car runs between two vertical rigid guide rails, and the inclination of the guide rails is less than 65438+05. It has the characteristics of small size, full function, stable transportation and low price, and is widely used to transport meals in restaurants and canteens and sundries in factories and libraries. At present, there are two types in the market, microcomputer control and PLC control, which are divided into desktop and floor-standing according to the working mode, and the speed ranges from 0.4 meters to 1.0 meters. At present, for the convenience of installation, most of them adopt frame structure, which is convenient for installation and use.

A, manufacturing standards:

GB/T7025.3- 1997 "Main Parameters of Elevator and Forms and Dimensions of Car, Shaft and Machine Room" Part III: Five Kinds of Elevator

Industry standard? :? JG? 135-2000 "miscellaneous elevators"

National standards? Safety code for the manufacture and installation of miscellaneous elevators? National standard? 25 194-20 10

Manufacturing technical requirements

Parameter name requirements

Rated load (kg) ≤300

Rated speed (m/s) ≤ 1

Car size (m) width ≤ 1

Depth ≤ 1

Height ≤ 1.2

Second, the manufacturing points

It is used to transport small goods such as books and food for canteens, restaurants, nurseries and libraries.

1. The elevator counterweight shall be installed in the same hoistway as the car.

2. Usually, the elevator shaft is completely closed by imperforate wall, bottom plate and top plate. Only the following openings are allowed:

(1) floor door;

(2) Access door, trap door and cleaning door;

(3) an exhaust hole for exhausting gas and smoke in case of fire;

(4) Permanent opening between shaft and machine room (cover) or pulley.

? The third is safety standards.

When the shaft is not required to prevent the fire from spreading to protect the building, and the shaft is not required to be completely closed, the height of other walls except the entrance surface should not be less than 2.5m. At the entrance face of the elevator shaft, a grating or perforated plate can be used at a height of more than 2.5 meters from the landing ground. Whether measured horizontally or vertically, the size of the holes in the grid or perforated plate shall not exceed 75mm.

1. The door of the machine room should not be less than 0.6m×0.6m at any time, and the door should be lockable.

2. Doors without holes should be installed at the opening of the elevator shaft facing the entrance of the car. When closing the door, the gap between the door leaves or between the door leaves and columns, lintels or windowsills should be as small as possible, not exceeding 6mm.

3. If there is a vacant floor below the elevator, a safety clamping device should be installed on the car.

4. The elevator drive main engine and its auxiliary equipment should be placed in a separate machine room or a fume hood in the elevator shaft, and only approved personnel are allowed to enter (or approach) the machine room or fume hood.

5. The machine room or ventilation hood should have a solid structure, be able to adapt to various weather conditions, be dry and have good ventilation conditions. Personnel should keep safe when approaching all equipment.

Fourth, the installation safety specification

(1) floor doorway;

(2) the opening of the access door of the shaft, the safety door of the shaft and the access trap door;

(3) Exhaust holes for removing gas and smoke in case of fire;

④ Vents;

⑤ Permanent opening between shaft and machine room or pulley.

⑥ Under special circumstances, where there is no need to prevent the fire from spreading from the well to protect the building.

⑦ ? Except the entrance surface, the height of other walls is limited to 2.5 meters, which exceeds the height that people may usually touch;

⑧ At the entrance face of the shaft, from the height of 2.5m above the platform ground, a grid or perforated plate can be used. (If the door has a mechanical lock, the protective measures specified in this article may not be adopted) (see 5.4.3.2.2).

Pet-name ruby grid or the size of the perforation, whether measured in the horizontal or vertical direction, shall not be greater than 75 mm. ..

Attending the national standard? 3805—83? safe voltage

When we make sundries elevators, we can make them in two ways, one is traction type, and the other is forced drive type. Each kind of driving mode is different, which depends on the size of the transported space and the "quality" of the transported object. The state has also formulated the related guide "Safety Code for Manufacture and Installation of Miscellaneous Elevator"? The safest way is to set the required quality and the safest specifications when making.

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