Anti-collision device applied to elevator landing door

Abstract

The utility model discloses an anti-collision device applied to an elevator landing door, which comprises a fixed pulley mechanism fixedly arranged on a door leaf of the landing door, a transmission rope mechanism wound on the fixed pulley mechanism and a hooking mechanism connected to the lower end of the transmission rope mechanism in a sliding manner, wherein the upper end of the transmission rope mechanism is used for being fixedly connected with the bottom of the landing door guide rail. The anti-collision device is simple in structure, low in manufacturing cost, high in safety and high in practicability, when the elevator landing door is in a closed state and the landing door leaf is subjected to external impact force, the hooking mechanism is hooked on the landing door sill to prevent the landing door leaf from being collided off, the anti-collision device can play a role in reinforcing the anti-collision performance, the safety of the elevator landing door can be effectively improved, and the safety of the elevator landing door is improved. And therefore, elevator safety accidents can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of anti-collision devices, specifically a kind of anti-collision device applied to elevator landing door. BACKGROUND

[0002] As a kind of electromechanical special equipment, the safety of elevator is more and more valued by people, among them, elevator landing door is an important component in elevator, and the elevator landing door is installed at the entrance of each floor elevator shaft, and its main purpose is to prevent passengers from falling into the elevator shaft. The elevator landing door needs to be used in cooperation with the elevator car door. When the elevator car reaches the target floor, the elevator landing door and the elevator car door are opened or closed synchronously to form a passenger access channel.

[0003] As shown in Figure 1 The existing elevator landing door is usually composed of landing door head 1, landing door guide rail 2, landing door leaf 3, landing door hanging plate 4, landing door sliding block 5, landing door sill 6 and other components, wherein the landing door sill includes a sill body, a sliding groove adapted to the landing door sliding block 5 provided on the sill body, and a plurality of dust removal holes spaced apart on the sliding groove. However, due to the design of the current elevator landing door, the bottom of the landing door leaf 3 is only connected together by the sliding connection of the landing door sliding block 5 and the track in the landing door sill 6. When the landing door leaf 3 is impacted by external force, the anti-impact performance of the landing door sliding block 5 is poor, and the landing door sliding block 5 is easily damaged or separated from the track on the landing door sill 6. At this time, the landing door leaf 3 will be knocked off, and further, the safety accident of passenger falling into the shaft will easily occur, which has a great safety hazard and seriously affects the safety of the elevator landing door. SUMMARY

[0004] To solve the above problems in the prior art, the utility model aims to provide an anti-collision device applied to elevator landing door to improve the safety of elevator landing door.

[0005] To achieve the above-mentioned purpose, the utility model employs the following technical scheme: an anti-collision device applied to elevator landing door, comprising a fixed pulley mechanism for being fixed on the landing door leaf, a transmission rope mechanism wound on the fixed pulley mechanism, and a hooking mechanism slidingly connected to the lower end of the transmission rope mechanism, wherein the upper end of the transmission rope mechanism is fixedly connected to the bottom of the landing door guide rail.

[0006] As a limitation of the utility model, the hooking mechanism comprises a connecting block, a vertical groove provided on the top of the connecting block, a first bolt member threadedly connected at the opening of the vertical groove, a vertical through hole opened on the first bolt member, and a hook fixedly provided on the bottom of the connecting block.

[0007] As a further limitation of the utility model, the transmission rope mechanism comprises a transmission rope body, a fixed block fixed at the bottom of the transmission rope body, and a second bolt member threadedly connected at the bottom of the fixed block and slidingly connected on the vertical through hole and the vertical groove.

[0008] As a further limitation of the utility model, the fixed pulley mechanism comprises a pulley support and a pulley member, wherein the pulley support comprises a top plate and two vertical plates oppositely fixed at both sides of the top plate, and the pulley member is rotationally arranged between the two vertical plates.

[0009] As a further limitation of the utility model, the transmission rope body is a steel wire rope.

[0010] Thanks to the above technical scheme, the utility model has the following advantages compared with the prior art:

[0011] (1) The utility model adopts the structure of the combination of the fixed pulley mechanism, the transmission rope mechanism and the hooking mechanism, is installed on the elevator landing door for use, and after installation, the hooking mechanism can slide in the hollow cavity of the reinforcing rib of the landing door leaf and the hook in the hooking mechanism can pass through the bottom of the reinforcing rib, the reinforcing rib plays a guiding role on the hooking mechanism, when the elevator landing door is closed, the fixed pulley mechanism moves along with the landing door leaf towards the direction of the closing of the elevator landing door, at this time, the steel wire rope moves downwards, and the corresponding hooking mechanism moves downwards, when the elevator landing door is closed in place, the hook in the hooking mechanism can pass through the dust discharging hole and be hooked on the bottom of the landing sill beside the dust discharging hole, when the elevator landing door is opened, the fixed pulley mechanism moves along with the landing door leaf towards the direction of the opening of the elevator landing door, at this time, the steel wire rope moves upwards, and the hook in the corresponding hooking mechanism moves out of the dust discharging hole and moves upwards. Therefore, when the landing door leaf is impacted by external force in the closed state of the elevator landing door, the hooking mechanism is hooked on the landing sill to prevent the landing door leaf from being knocked off, the utility model can enhance the anti-collision performance, effectively improve the safety of the elevator landing door, and further effectively reduce the occurrence of elevator safety accidents. In addition, the utility model improves the safety of the elevator landing door while having the characteristics of simple structure and low manufacturing cost, and is conducive to popularization and use.

[0012] (2) The structure design of the hooking mechanism and the transmission rope mechanism in the utility model is ingenious and reasonable, when the elevator landing door is closed in place, the bottom surface of the connecting block is arranged on the lower edge of the landing door leaf, the hook passes through the hole on the lower edge of the landing door leaf and the dust discharging hole and is hooked on the bottom of the landing sill beside the dust discharging hole, at this time, the steel wire rope is in a relaxed state, when the elevator landing door is opened, the second bolt member first moves upwards in the vertical groove until the steel wire rope changes from the relaxed state to the tensioned state, in this process, the hook is unhooked from the bottom of the landing sill, thereafter, the steel wire rope is in a tensioned state and moves upwards, in this process, the hook moves upwards and moves out of the dust discharging hole.

[0013] (3) The transmission rope body in this utility model is made of steel wire rope. Steel wire rope has high structural strength, strong load-bearing capacity and strong corrosion resistance. While improving the structural strength and service life of this utility model, it can also improve the safety of this utility model.

[0014] In summary, this utility model has a simple structure, low manufacturing cost, high safety, and strong practicality. When the elevator landing door is closed, if the landing door leaf is subjected to external impact force, the hook mechanism hooks onto the landing door sill to prevent the landing door leaf from being knocked off. This utility model can enhance the anti-collision performance, effectively improve the safety of the elevator landing door, and thus effectively reduce the occurrence of elevator safety accidents. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a structural diagram of an existing elevator landing door;

[0017] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram showing the connection relationship between the transmission rope mechanism and the hook mechanism in an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram illustrating the usage state of an embodiment of the present utility model;

[0020] In the diagram: 1. Landing door header; 2. Landing door guide rail; 3. Landing door leaf; 4. Landing door hanging plate; 5. Landing door slider; 6. Landing door sill; 7. Pulley assembly; 8. Pulley bracket; 9. Wire rope; 10. Fixing block; 11. Second bolt assembly; 12. First bolt assembly; 13. Connecting block; 14. Hook; 15. Vertical groove. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0022] Example 1: An anti-collision and detachment device applied to elevator landing doors

[0023] like Figure 2 As shown, this embodiment includes a fixed pulley mechanism for fixing on the landing door leaf 3, a transmission rope mechanism wound on the fixed pulley mechanism, and a hook mechanism slidably connected to the lower end of the transmission rope mechanism, wherein the upper end of the transmission rope mechanism is used to be fixedly connected to the bottom of the landing door guide rail 2.

[0024] As shown in Figure 3 The hooking mechanism includes a connecting block 13, a vertical groove 15 arranged on the top of the connecting block 13, a first bolt member 12 threadedly connected at the opening of the vertical groove 15, a vertical through hole arranged on the first bolt member 12, and a hook 14 fixedly arranged on the bottom of the connecting block 13. Specifically, in the embodiment, the connecting block 13 is a rectangular block, and the vertical through hole is a circular hole adapted to the screw rod in the second bolt member 11 so that the screw rod in the second bolt member 11 can slide on the vertical through hole. The hooking mechanism is adapted to the hollow cavity of the reinforcing rib in the door leaf 3 so that the hooking mechanism can slide in the hollow cavity of the reinforcing rib after the embodiment is installed on the existing elevator landing door. The hollow cavity of the reinforcing rib guides the hooking mechanism, and the hook 14 in the hooking mechanism is adapted to the through hole arranged on the bottom of the reinforcing rib so that the hook 14 can pass through the through hole on the bottom of the reinforcing rib.

[0025] As shown in Figure 3 The transmission rope mechanism includes a transmission rope body, a fixing block 10 fixedly arranged on the bottom of the transmission rope body, and a second bolt member 11 threadedly connected on the bottom of the fixing block 10 and slidingly connected on the vertical through hole and the vertical groove 15, wherein the second bolt member 11 is a bolt with a threaded end, the transmission rope body is a steel wire rope 9, the fixing block 10 is a hexagonal block, the bottom of the hexagonal block is provided with a threaded groove adapted to the end thread in the second bolt member 11, and the end of the second bolt member 11 with the thread is threadedly connected in the threaded groove.

[0026] The fixed pulley mechanism includes a pulley bracket 8 and a pulley member 7, wherein the pulley bracket 8 includes a top plate and two vertical plates oppositely arranged on both sides of the top plate, a pulley shaft is fixedly arranged between the two vertical plates, and the pulley member 7 is a V-shaped pulley in the prior art, and the pulley member 7 is rotationally arranged on the pulley shaft.

[0027] The embodiment needs to be installed on the elevator landing door for use, and the elevator landing door is taken as a center dividing door for example, as shown in Figure 4As shown, when the elevator landing door is a center-split door, two embodiments of the present application need to be installed on two landing door leaves 3 respectively, and the installation method of the embodiments of the present application on the two landing door leaves 3 is the same. The specific installation method is that before use, the fixed pulley mechanism is fixedly installed on the corresponding landing door leaf 3, and the upper end of the transmission rope mechanism is fixedly installed at the corresponding position at the bottom of the landing door guide rail 2. After installation, the hooking mechanism can slide in the hollow cavity of the reinforcing rib in the landing door leaf 3, and the hook in the hooking mechanism can pass through the bottom of the reinforcing rib. The reinforcing rib plays a guiding role on the hooking mechanism. It should be noted that when installing the embodiment, the inside of the reinforcing rib in the existing landing door leaf 3 is a hollow cavity. A through hole is needed to be formed in the top of the reinforcing rib in the existing landing door leaf 3, which can allow the steel wire rope 9 to pass through and enter the hollow cavity of the reinforcing rib. A through hole is needed to be formed in the bottom of the reinforcing rib in the landing door leaf 3, which can allow the hook 14 in the hooking mechanism to pass through. A maintenance hole is needed to be formed in the back of the reinforcing rib in the landing door leaf 3, which can allow the hooking mechanism to be taken out from the hollow cavity of the reinforcing rib during maintenance. At the same time, the arrangement position of the dust removal through hole on the landing sill 6 needs to be adapted to the position of the hooking mechanism falling when the elevator landing door is closed. Specifically, it needs to be ensured that when the elevator landing door is closed, the hook 14 in the hooking mechanism can pass through the dust removal through hole and the connecting block 13 in the hooking mechanism is placed on the lower edge of the landing door leaf 3 after the elevator landing door is closed in place, and the hook 14 can be hooked on the bottom of the landing sill 6 beside the dust removal through hole. At the same time, it needs to be ensured that when the elevator landing door is opened, the hook 14 in the hooking mechanism can move out of the dust removal through hole and move upward.

[0028] The working principle of the embodiment is as follows: when the elevator landing door is closed, the fixed pulley mechanism moves with the landing door leaf 3 towards the direction of closing the elevator landing door. At this time, the steel wire rope 9 moves downward, and the corresponding hooking mechanism moves downward. When the elevator landing door is closed in place, the hook 14 in the hooking mechanism can pass through the corresponding dust removal through hole and be hooked on the bottom of the landing sill 6 beside the dust removal through hole. When the elevator landing door is opened, the fixed pulley mechanism moves with the landing door leaf 3 towards the direction of opening the elevator landing door. At this time, the steel wire rope 9 moves upward, and the hook 14 in the corresponding hooking mechanism moves out of the dust removal through hole and moves upward.

[0029] It should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some technical features with equivalent ones. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A crash trip device for application to an elevator landing door, characterized by: The hooking mechanism comprises a connecting block, a vertical groove arranged on the top of the connecting block, a first bolt member threadedly connected at the opening of the vertical groove, a vertical through hole arranged on the first bolt member, and a hook fixedly arranged on the bottom of the connecting block.

2. An anti-crash and anti-fall device applied to an elevator landing door according to claim 1, characterized in that: The hooking mechanism comprises a connecting block, a vertical groove arranged on the top of the connecting block, a first bolt member threadedly connected at the opening of the vertical groove, a vertical through hole arranged on the first bolt member, and a hook fixedly arranged on the bottom of the connecting block.

3. An anti-impact and anti-falling device applied to an elevator landing door according to claim 2, characterized in that: The transmission rope mechanism comprises a transmission rope body, a fixing block fixedly arranged on the bottom of the transmission rope body, and a second bolt member threadedly connected at the bottom of the fixing block and slidingly connected with the vertical through hole and the vertical groove.

4. An anti-impact and anti-falling device applied to an elevator landing door according to claim 3, characterized in that: The fixed pulley mechanism comprises a pulley bracket and a pulley member, wherein the pulley bracket comprises a top plate and two vertical plates oppositely arranged on the two sides of the top plate, and the pulley member is rotatably arranged between the two vertical plates.

5. An anti-crash and anti-fall device for an elevator landing door according to claim 3 or 4, characterized in that: The transmission rope body is a steel wire rope.

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