Elevator counterweight anti-unhooking device

Abstract

The utility model relates to the technical field of elevators, and discloses an elevator counterweight anti-unhooking device which comprises a counterweight frame, guide shoes arranged at the four corners of the outer surface of the counterweight frame and guide rails installed on the wall of an elevator shaft, the guide shoes are in sliding fit with the guide rails, and anti-unhooking grooves are formed in the surfaces of the guide rails in the moving directions of the guide shoes. A first connecting rod and a second connecting rod are fixedly connected to the two sides of the guide shoe respectively, the end of the first connecting rod is rotationally connected with an anti-disengaging plate through a rotating shaft, a butt-joint groove matched with the anti-disengaging plate is formed in the upper surface of the second connecting rod, and a sliding groove communicated with the butt-joint groove is formed in one side of the butt-joint groove. In order to prevent the guide shoe from disengaging from the guide rail, the anti-disengaging plate is rotated to be horizontal, the positioning groove in the anti-disengaging plate is aligned with the positioning block, then the moving mechanism is used for moving the positioning block into the positioning groove, the anti-disengaging plate is locked, and the anti-disengaging plate, the first connecting rod, the second connecting rod and the guide shoe form a closed structure, so that the guide shoe is prevented from disengaging from the guide rail.

Description

Technical Field

[0001] The present application relates to the technical field of elevators, and in particular to an elevator counterweight anti-unhooking device. Background Art

[0002] The counterweight device is an indispensable part of the traction drive. It can balance the weight of the car and part of the load weight, reduce the power loss of the motor, and when the elevator load and the counterweight are well matched, it can also reduce the traction force between the wire rope and the sheave, and extend the life of the wire rope.

[0003] Existing counterweight systems rely on four guide shoes to move up and down along guide rails. These guide shoes wear out over time, widening the gap between the shoes and the guide rails. This can easily cause the counterweight to detach from the rails, leading to safety accidents. Therefore, an elevator counterweight anti-decoupling device is proposed. Utility Model Content

[0004] In order to solve the problem that the counterweight guide shoes will wear out after long-term use, resulting in a larger gap between the guide shoes and the guide rails, which makes it very easy for the counterweight device to fall off the guide rails, the present application provides an elevator counterweight anti-decoupling device.

[0005] The present application provides an elevator counterweight anti-unhooking device that adopts the following technical solutions:

[0006] The anti-dropping plate is fixedly connected to the first connecting rod and the second connecting rod at both ends of the guide rail, and the first connecting rod is fixedly connected to the second connecting rod through a rotating shaft. The end of the first connecting rod is connected to the anti-dropping plate by a rotating shaft, and the upper surface of the second connecting rod is provided with a docking groove adapted to be adapted for the anti-dropping plate. One side of the docking groove is provided with a slide groove communicated with the anti-dropping plate, and the interior of the slide groove is connected with a positioning block by a moving mechanism. The surface of the anti-dropping plate is provided with a positioning groove. When the anti-dropping plate is horizontal, the anti-dropping plate is located inside the anti-dropping groove, and one end of the anti-dropping plate is located inside the docking groove, and the positioning groove is aligned with the positioning block, and the moving mechanism can enable the positioning block to move in or out of the positioning groove.

[0007] Preferably, the moving mechanism includes an elastic force storage member and a barrier member, one end of the barrier member is located inside the docking groove and forms a moving interference with the positioning block. When one end of the anti-slip plate is located inside the docking groove, the anti-slip plate moves the barrier member away from the surface of the positioning block, and the elastic force storage member causes the positioning block to move into the positioning groove.

[0008] Preferably, the elastic force storage member includes a guide rod fixedly installed inside the slide groove, a guide groove adapted to the guide rod is opened inside the positioning block, one end of the guide rod is slidably fitted inside the guide groove, and a first spring is sleeved on the surface of the guide rod, which is a compression spring.

[0009] Preferably, the barrier member includes a through groove provided at the bottom of the docking groove, an L-shaped plate is installed inside the through groove, the vertical portion of the L-shaped plate is in contact with the positioning block, the horizontal portion of the L-shaped plate is fixedly connected to a connecting column, a cylindrical groove adapted to the connecting column is provided inside the second connecting rod, one end of the connecting column is installed inside the cylindrical groove, a second spring is sleeved on the surface of the connecting column, one end of the second spring is fixedly connected to the end of the connecting column, and the other end of the second spring is fixedly connected to the inner wall of the cylindrical groove.

[0010] Preferably, a control plate is fixedly connected to the surface of the positioning block, a control groove is opened on the surface of the second connecting rod, and one end of the control plate extends to the outside of the second connecting rod through the control groove.

[0011] Preferably, the guide shoes are mounted on the outer surface of the counterweight frame by fixing bolts.

[0012] In summary, this application has the following beneficial technical effects:

[0013] The utility model discloses that in order to prevent the guide shoe from falling off the guide rail, the anti-falling plate is rotated to a horizontal state so that the positioning groove on the anti-falling plate is aligned with the positioning block, and then the positioning block is moved into the positioning groove by using the moving mechanism to lock the anti-falling plate. The anti-falling plate, the first connecting rod, the second connecting rod and the guide shoe form a closed structure, thereby preventing the guide shoe from falling off the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0015] Figure 2 It is a structural diagram of a guide shoe according to an embodiment of the application;

[0016] Figure 3 is a cross-sectional view of the second connecting rod of the application embodiment;

[0017] Figure 4 This is an application embodiment Figure 3 Enlarged view of point A in the middle.

[0018] Explanation of the accompanying drawings: 1. Counterweight frame; 2. Guide shoe; 3. Guide rail; 4. Anti-slip groove; 5. Fixing bolt; 6. First connecting rod; 7. Rotating shaft; 8. Anti-slip plate; 9. Positioning groove; 10. Second connecting rod; 11. Slide groove; 12. Positioning block; 13. Guide rod; 14. First spring; 15. Control groove; 16. Control plate; 17. Docking groove; 18. L-shaped plate; 19. Through groove; 20. Cylindrical groove; 21. Connecting column; 22. Second spring; 23. Guide groove. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-4 This application is described in further detail.

[0020] The embodiment of the present application discloses an elevator counterweight anti-unhooking device, including a counterweight frame 1, guide shoes 2 arranged at the four corners of the outer surface of the counterweight frame 1, and a guide rail 3 installed on the elevator shaft wall. The guide shoe 2 slides in cooperation with the guide rail 3, and the surface of the guide rail 3 is provided with an anti-slip groove 4 along the moving direction of the guide shoe 2. The two sides of the guide shoe 2 are fixedly connected to a first connecting rod 6 and a second connecting rod 10, respectively. The end of the first connecting rod 6 is rotatably connected to an anti-slip plate 8 through a rotating shaft 7. The upper surface of the second connecting rod 10 is provided with a docking groove 17 adapted to the anti-slip plate 8, and one side of the docking groove 17 is provided with a slide groove 11 connected thereto. A positioning block 12 is connected to the inside of the slide groove 11 through a moving mechanism. A positioning groove 9 is provided on the surface of the anti-slip plate 8. When the anti-slip plate 8 is horizontal, the anti-slip plate 8 is located inside the anti-slip groove 4, and one end of the anti-slip plate 8 is located inside the docking groove 17, and the positioning groove 9 is aligned with the positioning block 12. The moving mechanism can move the positioning block 12 into or out of the positioning groove 9.

[0021] Furthermore, the guide shoes 2 are mounted on the outer surface of the counterweight frame 1 via fixing bolts 5 .

[0022] In this embodiment, in order to prevent the guide shoe 2 from falling off the guide rail 3, the anti-slip plate 8 is rotated to a horizontal state so that the positioning groove 9 on the anti-slip plate 8 is aligned with the positioning block 12, and then the positioning block 12 is moved to the inside of the positioning groove 9 by using the moving mechanism to lock the anti-slip plate 8. The anti-slip plate 8, the first connecting rod 6, the second connecting rod 10 and the guide shoe 2 form a closed structure, thereby preventing the guide shoe 2 from falling off the guide rail 3.

[0023] Furthermore, the moving mechanism includes an elastic force storage member and a barrier member. One end of the barrier member is located inside the docking groove 17 and forms a moving interference with the positioning block 12. When one end of the anti-slip plate 8 is located inside the docking groove 17, the anti-slip plate 8 moves the barrier member away from the surface of the positioning block 12, and the elastic force storage member causes the positioning block 12 to move into the positioning groove 9.

[0024] Furthermore, the elastic force storage member includes a guide rod 13 fixedly installed inside the slide groove 11, a guide groove 23 adapted to the guide rod 13 is opened inside the positioning block 12, one end of the guide rod 13 is slidably fitted inside the guide groove 23, and a first spring 14 is sleeved on the surface of the guide rod 13, and the first spring 14 is a compression spring.

[0025] Furthermore, the barrier member includes a through groove 19 opened at the bottom of the docking groove 17, and an L-shaped plate 18 is installed inside the through groove 19. The vertical part of the L-shaped plate 18 contacts the positioning block 12, and the horizontal part of the L-shaped plate 18 is fixedly connected to the connecting column 21. A cylindrical groove 20 adapted to the connecting column 21 is opened inside the second connecting rod 10, and one end of the connecting column 21 is installed inside the cylindrical groove 20. A second spring 22 is sleeved on the surface of the connecting column 21, and one end of the second spring 22 is fixedly connected to the end of the connecting column 21, and the other end of the second spring 22 is fixedly connected to the inner wall of the cylindrical groove 20.

[0026] In this embodiment, after the anti-slip plate 8 rotates to the inside of the docking groove 17, the anti-slip plate 8 presses down the L-shaped plate 18, so that the vertical part of the L-shaped plate 18 moves away from the surface of the positioning block 12, and the compressed first spring 14 pushes the positioning block 12 to move, so that the positioning block 12 moves to the inside of the positioning groove 9 on the surface of the anti-slip plate 8, locking the anti-slip plate 8.

[0027] It should be noted that when the vertical portion of the L-shaped plate 18 is pressed downward by the anti-slip plate 8 , the connecting column 21 also moves downward, and the second spring 22 sleeved on the surface of the connecting column 21 is compressed.

[0028] Furthermore, a control plate 16 is fixedly connected to the surface of the positioning block 12 , a control slot 15 is opened on the surface of the second connecting rod 10 , and one end of the control plate 16 extends to the outside of the second connecting rod 10 through the control slot 15 .

[0029] When the guide shoe 2 needs to be repaired or replaced, the staff can manually move the control panel 16 to move the positioning block 12 out of the positioning groove 9 and into the slide groove 11, and then rotate the anti-slip plate 8 to a vertical position to move the anti-slip plate 8 out of the docking groove 17 to facilitate the disassembly of the guide shoe 2. At this time, the compressed second spring 22 extends, driving the L-shaped plate 18 to reset, so that the L-shaped plate 18 again forms a moving interference with the positioning block 12.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0031] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0033] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An elevator counterweight anti-unhooking device, comprising a counterweight frame (1), guide shoes (2) arranged at the four corners of the outer surface of the counterweight frame (1), and a guide rail (3) installed on the wall of the elevator shaft, wherein the guide shoes (2) and the guide rail (3) are in sliding cooperation, and the device is characterized in that: The surface of the guide rail (3) is provided with an anti-slip groove (4) along the moving direction of the guide shoe (2), and the two sides of the guide shoe (2) are fixedly connected with a first connecting rod (6) and a second connecting rod (10), respectively. The end of the first connecting rod (6) is rotatably connected to an anti-slip plate (8) through a rotating shaft (7), and the upper surface of the second connecting rod (10) is provided with a docking groove (17) adapted to the anti-slip plate (8), and one side of the docking groove (17) is provided with a slide groove (11) connected thereto, and a positioning block (12) is connected to the inside of the slide groove (11) through a moving mechanism. A positioning groove (9) is provided on the surface of the anti-slip plate (8), and when the anti-slip plate (8) is horizontal, the anti-slip plate (8) is located inside the anti-slip groove (4), and one end of the anti-slip plate (8) is located inside the docking groove (17), and the positioning groove (9) is aligned with the positioning block (12), and the moving mechanism can move the positioning block (12) into or out of the positioning groove (9).

2. The elevator counterweight anti-unhooking device according to claim 1, characterized in that: The moving mechanism comprises an elastic force storage member and a barrier member, one end of the barrier member is located inside the docking groove (17) and forms a moving interference with the positioning block (12); when one end of the anti-slip plate (8) is located inside the docking groove (17), the anti-slip plate (8) moves the barrier member away from the surface of the positioning block (12), and the elastic force storage member causes the positioning block (12) to move into the positioning groove (9).

3. The elevator counterweight anti-unhooking device according to claim 2, characterized in that: The elastic force storage member comprises a guide rod (13) fixedly mounted inside the slide groove (11); a guide groove (23) adapted to the guide rod (13) is provided inside the positioning block (12); one end of the guide rod (13) is slidably mounted inside the guide groove (23); a first spring (14) is sleeved on the surface of the guide rod (13); and the first spring (14) is a compression spring.

4. The elevator counterweight anti-unhooking device according to claim 3, characterized in that: The barrier member includes a through groove (19) provided at the bottom of the docking groove (17); an L-shaped plate (18) is installed in the through groove (19); the vertical portion of the L-shaped plate (18) contacts the positioning block (12); the horizontal portion of the L-shaped plate (18) is fixedly connected to a connecting column (21); a cylindrical groove (20) adapted to the connecting column (21) is provided in the second connecting rod (10); one end of the connecting column (21) is installed in the cylindrical groove (20); a second spring (22) is sleeved on the surface of the connecting column (21); one end of the second spring (22) is fixedly connected to the end of the connecting column (21); and the other end of the second spring (22) is fixedly connected to the inner wall of the cylindrical groove (20).

5. The elevator counterweight anti-unhooking device according to claim 4, characterized in that: A control plate (16) is fixedly connected to the surface of the positioning block (12), a control groove (15) is opened on the surface of the second connecting rod (10), and one end of the control plate (16) extends to the outside of the second connecting rod (10) through the control groove (15).

6. The elevator counterweight anti-unhooking device according to claim 1, characterized in that: The guide shoes (2) are mounted on the outer surface of the counterweight frame (1) via fixing bolts (5).

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