CN104418207A - Entry anti-falling device of elevator - Google Patents

Abstract

The present invention relates to an anti-fall device for an elevator, which mainly utilizes the up and down process of the elevator box in the moving path of a moving component, and a first grid-like belt and a second grid-like belt are provided in the path corresponding to the movable door. In this way, even when the movable door is opened, but the elevator box has not reached the corresponding floor, as soon as the movable door is opened, it can correspond to the first grid-like belt or the second grid-like belt, initially warning people, and further relying on the protective effect of the grid, preventing people, goods or vehicles from falling into the elevator pipe.

Description

Entry fall arrest device for lifts

technical field

The invention relates to a safety device for a lifter, in particular to an entry and fall prevention device for a lifter.

Background technique

Elevators (also known as elevators, to distinguish them from escalators, hereinafter referred to as elevators) are convenient tools produced in response to tall buildings or elevated structures, and are widely used in the design of people's transportation, cargo delivery or parking space.

The characteristics of the lifter mainly include a lift pipe running through a plurality of floors, and the lift pipe is respectively provided with a pair of external opening and closing movable doors corresponding to each floor; and a lift box, which is provided with a box that can be opened and closed. door, and the lifting box is arranged in the lifting pipe. When the lifting box reaches the designated floor, the door corresponds to the movable door, so that people, goods or vehicles can enter the lifting box and be carried. It is generally known that whether it is the movement of the elevator box to reach the designated floor, the opening and closing of the movable door, the box door, and even the indicator light display of the location of the elevator box, it is usually composed of a series of precision detection, control and other parts and processes. controlled by.

For this type of elevator, the usual safety design and consideration is whether the elevator box itself will fall due to unexpected loss of control, resulting in casualties or damage. Therefore for this type of elevator, the industry has released many devices for safety braking.

But there is often a situation, please refer to shown in Figure 7, that is, when the dodge door 41 is opened, but the lifting box 42 and the box door 421 have not fully arrived at the corresponding floor, if people are in a hurry or carelessly at this moment, when the dodge door As soon as 41 is opened, people, goods, and vehicles move inwardly. The figure is taken as an example by people, who may fall into the lifting pipe 43 and cause casualties. The vast majority of such tragic situations are caused by malfunctions and malfunctions of parts or instruments. At present, most of the efforts that the industry can make are more sophisticated and highly secure monitoring and control equipment and operating procedures. However, whether it is more sophisticated and highly secure monitoring and control equipment and operating procedures, there are limits to precision and doubts about reliability.

Contents of the invention

In view of the problems of the prior art, the inventors believe that an improved structure should be produced, but it can be achieved with a simpler and more effective device.

Design a kind of anti-falling device of lift for this purpose, comprising:

1. Lifting pipeline: runs through multiple floors, and the lifting pipeline is respectively provided with a pair of movable doors for external opening and closing corresponding to each floor;

A lifting box: the lifting box is provided with a door that can be opened and closed, and the lifting box is arranged in the lifting pipeline;

A moving assembly: the moving assembly includes a power mechanism and a first grid-shaped belt and a second grid-shaped belt directly or indirectly connected and driven by the power mechanism. The first ends of the first grid-shaped belt and the second grid-shaped belt are respectively Fixed on the top and bottom of the lifting box and adjacent to the box door respectively; the first grid-like belt and the second grid-like belt are respectively separated by a plurality of unit grid bars, and the moving components are respectively on the top of the lifting pipeline A first support component and a second support component are provided in the bottom space to allow the first grid strip and the second grid strip to be supported.

In a preferred technical solution, the following technical features can also be added:

The end of the first grid-shaped belt is connected with the end of the second grid-shaped belt as a whole, and the power mechanism is the lifting mechanism of the lifting box. The movement of the two grid-shaped belts is circular.

The power mechanism is a set of upper and lower winches, the end of the first grid-like belt and the end of the second grid-like belt are fixedly connected to the upper and lower winches respectively, and the first supporting component and the second The two supporting components are respectively the rollers of the upper and lower winches.

The first supporting component includes a plurality of separated first guide wheels and second guide wheels.

The second supporting component includes a plurality of separated third and fourth guide wheels.

Each unit bar of the first grid-like belt and the second grid-like belt is any one selected from metal cables, wires, belts, and chains.

In this way, even when the movable door is opened, but the elevator box has not reached the corresponding floor, when the movable door is opened, it can correspond to the first grid-shaped belt or the second grid-shaped belt, which will initially warn people, and rely on the grid to Shaped protective effect, preventing people, goods or vehicles from falling into the lifting pipe.

Description of drawings

Fig. 1 is a schematic perspective view of the present invention;

Fig. 2 is the front schematic view of the correct correspondence between the dodge door and the box door of the present invention;

Fig. 3 is a side view of the correct correspondence between the dodge door and the box door of the present invention;

Fig. 4 is a schematic front view showing that the dodge door of the present invention is not correctly corresponding to the box door;

Fig. 5 is a side view in which the dodge door of the present invention does not correspond correctly to the box door;

Fig. 6 is a side view of another embodiment of the present invention in which the dodge door does not correspond correctly to the box door;

Fig. 7 is a schematic diagram of incorrect correspondence between the movable door and the box door in the prior art.

Explanation of reference numerals: 1-lifting pipe; 10-movable door; 11-first support assembly; 111-first guide wheel; 112-second guide wheel; 12-second support assembly; 121-third guide wheel; 122-fourth guide wheel; 2-lifting box; 21-box door; 3-moving assembly; 30-power mechanism; 301-upper winch; 301A-roller; 302-lower winch; 302A-roller 31-the first grid strip; 311-unit grid strip; 32-the second grid strip;

Detailed ways

The structure, features and embodiments of the present invention are described below with the help of the drawings, so that your examiners can have a better understanding of the present invention.

Please refer to Fig. 1, as shown in Fig. 2 and Fig. 3, the present invention relates to an entry and fall prevention device for elevators, including:

A lift pipe 1: runs through multiple floors, and the lift pipe 1 is respectively provided with a pair of movable doors 10 for external opening and closing corresponding to each floor;

A lifting box 2: the lifting box 2 is provided with a box door 21 capable of opening and closing, and the lifting box 2 is arranged in the lifting pipeline 1;

A moving assembly 3: the moving assembly 3 includes a power mechanism 30 and a first grid belt 31 and a second grid belt 32 directly or indirectly connected and driven by the power mechanism, the first grid belt 31 and the second grid belt The head ends of the shaped belts 32 are fixedly connected to the top and bottom of the lifting box 2 respectively and adjacent to the position of the box door 21 respectively; A plurality of unit grid bars 321 are separated from each other. The individual grid bars 311, 321 of the first grid belt 31 and the second grid belt 32 are selected from any one of metal cables, cloth ropes, belts, and chains, which can be selected according to actual needs.

And the moving component 3 is respectively provided with a first support component 11 and a second support component 12 in the top and bottom spaces of the lift pipe 1 to allow the first grid-shaped belt 31 and the second grid-shaped belt 32 to be supported.

In this way, please refer to Fig. 4 and Fig. 5, even when the dodge door 10 is opened, the elevator box 2 has not reached the corresponding floor, when the dodge door 10 is opened, even if there is no door corresponding to the elevator box 2 21. At this time, it can also correspond to the first grid-shaped zone 31 or the second grid-shaped zone 32. Figure 5 takes the second grid-shaped zone as an example, and the first grid-shaped zone 31 or the second grid-shaped zone 32 can be initially To warn people, the first grid-shaped belt 31 or the second grid-shaped belt 32 can also be coated with fluorescent or reflective, or coloring materials that enhance the eye-catching effect, so as to strengthen the warning effect. As soon as the user sees the first grid-like belt 31 or the second grid-like belt 32 , he or she will have doubts, and will rush to the first grid-like belt 31 or the second grid-like belt 32 and fall into the lifting pipe 1 .

Even if people, cars or goods will advance towards the inside of the dodge door 10, they will be blocked by the first grid-shaped belt 31 or the second grid-shaped belt 32 to achieve a more protective effect. The gap between the material of the grid strip 32 and the grid bars 311 and 321 of each unit can be adjusted according to actual operation and construction. To prevent people, goods or vehicles from falling into the lifting pipeline.

Please refer to Fig. 1 to Fig. 5, an embodiment of the present invention, the end of the first grid-like belt 31 is connected with the end of the second grid-like belt 32 as a whole, and the power mechanism 30 is the lifting box 2 With the lifting mechanism, the up and down displacement of the lifting box 2 forms the circular movement of the first grid-like belt 31 and the second grid-like belt 32 . Therefore, the lifting box 2 of the present invention can be relatively easily arranged in a partial circulation path of a large circulation formed by the moving assembly 3 .

The first supporting component 11 includes a plurality of separated first guide wheels 111 and second guide wheels 112 . The first grid-like belt 31 is stably supported, and the winding is used to generate friction, which can produce an auxiliary deceleration effect in case the lifting box 2 accidentally slips out of control. The second supporting component 12 includes a plurality of separated third guide wheels 121 and fourth guide wheels 122 . This makes the second grid strip 32 obtain stable support. In case the lifting box 2 slips out of control accidentally, an auxiliary deceleration effect can be produced.

Please refer to Fig. 6, another embodiment of the present invention, wherein the power mechanism 30 is a set of upper and lower winches 301, 302, the end of the first grid-like belt 31 is connected to the second grid-like belt 32 are fixedly connected to the upper and lower hoists 301, 302 respectively, and the first support assembly 11 and the second support assembly 12 are respectively the rollers 301A, 302A of the upper and lower hoists, forming the first grid. The belt 31 and the second grid belt 32 move circularly.

The above description is only illustrative of the present invention, rather than restrictive. Those of ordinary skill in the art understand that many modifications, changes or equivalents can be made without departing from the spirit and scope defined in the claims, but All will fall within the protection scope of the present invention.

Claims (6)

1. An anti-falling device for an elevator, characterized in that it comprises: 1. Lifting pipeline: runs through multiple floors, and the lifting pipeline is respectively provided with a pair of movable doors for external opening and closing corresponding to each floor; A lifting box: the lifting box is provided with a door that can be opened and closed, and the lifting box is arranged in the lifting pipeline; A moving assembly: the moving assembly includes a power mechanism and a first grid-shaped belt and a second grid-shaped belt directly or indirectly connected and driven by the power mechanism. The first ends of the first grid-shaped belt and the second grid-shaped belt are respectively Fixed on the top and bottom of the lifting box and adjacent to the box door respectively; the first grid-like belt and the second grid-like belt are respectively separated by a plurality of unit grid bars, and the moving components are respectively on the top of the lifting pipeline A first support component and a second support component are provided in the bottom space to allow the first grid strip and the second grid strip to be supported. 2. The anti-falling device for elevators according to claim 1, characterized in that: the end of the first grid-shaped belt is connected with the end of the second grid-shaped belt as a whole, and the power mechanism is the lifting and lowering of the lifting box. The mechanism uses the up and down displacement of the lifting box to form the circular movement of the first grid-like belt and the second grid-like belt. 3. The anti-falling device for elevators according to claim 1, characterized in that: the power mechanism is a set of upper and lower winches, and the end of the first grid-shaped belt is connected to the end of the second grid-shaped belt. The ends are respectively fixed to the upper and lower winches, and the first support component and the second support component are rollers of the upper and lower winches respectively. 4 . The fall prevention device for elevators according to claim 2 , wherein the first supporting component includes a plurality of separated first guide wheels and second guide wheels. 5 . The anti-falling device for elevators according to claim 2 , wherein the second supporting component includes a plurality of separated third and fourth guide wheels. 5 . 6. The anti-falling device for elevators according to claim 1, characterized in that: each unit grid bar of the first grid-shaped belt and the second grid-shaped belt is selected from metal cables, cloth ropes, belts, chains, etc. either.