Infinitely Adjustable Safety Gear

Abstract

This application discloses a stepless adjustable safety clamp, relating to the field of elevator auxiliary equipment technology. It includes a mounting base, with an elevator track slidably connected to the inner wall of the mounting base. An electric push rod is rotatably connected to the outer wall of the mounting base, and a telescopic rod is fixedly connected to one end of the electric push rod. A bracket body, rotatably connected to the outer wall of the telescopic rod, is sleeved on the outer wall of the telescopic rod. An adjustment mechanism is provided on the outer wall of the bracket body. This application utilizes the rotation of the bracket body so that when it is necessary to use the bracket to rotate and drive the brake roller to perform buffer braking on the elevator track, the electric push rod can be opened. The telescopic rod's extension and retraction movement drives the bracket rotatably connected to the mounting base to rotate, causing a limiting block to slide along the inner wall of the limiting groove. Simultaneously, the sliding column and brake roller slowly approach the elevator track in the connecting groove and gradually press against the elevator track surface, achieving the effect of buffer braking on the elevator track.

Description

Technical Field

[0001] This application relates to the field of elevator auxiliary equipment technology, and in particular to stepless adjustable safety clamps. Background Technology

[0002] Elevator brakes are important safety devices for elevators. Their safety and reliability are one of the key factors in ensuring the safe operation of elevators. Bidirectional thrust elevator brakes generate bidirectional electromagnetic thrust when energized, causing the braking mechanism to disengage from the rotating parts of the motor (i.e., release). When the power is off, the electromagnetic force disappears, and under the pressure of an external braking spring, a friction brake is formed to achieve power-off braking.

[0003] Existing elevator braking systems mostly use electromagnetic coils, which have only two extreme positions, open and closed. This results in a very fast braking speed, which is not effective in buffering the elevator when braking is needed. The excessively fast braking speed can cause discomfort to people inside the elevator, reducing the comfort and experience of users. Utility Model Content

[0004] To address the aforementioned problem of inadequate buffer braking effect when elevators need to brake, which can easily cause discomfort to passengers due to excessively fast braking speed, this application provides a stepless adjustable safety brake.

[0005] The stepless adjustable safety clamp provided in this application adopts the following technical solution: it includes a mounting base, an elevator rail is slidably connected to the inner side wall of the mounting base, an electric push rod is rotatably connected to the outer wall of the mounting base, a telescopic rod is fixedly connected to one end of the electric push rod, and a bracket body that is rotatably connected to the outer wall of the telescopic rod is sleeved on the outer wall of the telescopic rod.

[0006] The outer wall of the support body is provided with an adjustment mechanism, which includes a sliding column, a brake roller and a limiting block;

[0007] The outer wall of the support body is slidably connected to a sliding column, and the bottom of the sliding column is rotatably connected to a brake roller located on one side of the elevator track. The outer wall of the mounting base is equipped with a limiting block that is slidably connected to the outer wall of the support body. The outer wall of the mounting base is equipped with a mounting rod that penetrates the outer wall of the support body, and the outer wall of the mounting rod is sleeved with a return spring that is fixedly connected to the surface of the support body.

[0008] By adopting the above technical solution, the squeezing pressure between the brake roller and the elevator track can be adjusted by adjusting the rotation angle of the bracket, thereby achieving the effect of buffer braking of the elevator.

[0009] Preferably, the inner sidewall of the mounting base is provided with a connecting groove at the connection point between it and the elevator track, and the end of the telescopic rod is detachably connected to a positioning rod that penetrates the outer wall of the support body.

[0010] By adopting the above technical solution, the effect of convenient limited sliding between the elevator track and the mounting base can be achieved.

[0011] Preferably, the outer wall of the bracket body is provided with an installation groove at the connection between the bracket body and the positioning rod.

[0012] By adopting the above technical solution, the operating space during bracket installation can be improved.

[0013] Preferably, the rotation center of the bracket body and the mounting base are detachably connected by threads.

[0014] By adopting the above technical solution, the bracket can be easily disassembled and replaced during long-term use.

[0015] Preferably, a moving guide groove is provided at the connection between the outer wall of the bracket body and the sliding column, and the electric push rod is located at the farthest position at the hinge between the bracket body and the mounting seat.

[0016] By adopting the above technical solution, the position of the brake roller can be conveniently adjusted.

[0017] Preferably, a limiting groove is provided at the connection between the outer wall of the support body and the limiting block.

[0018] By adopting the above technical solution, the effect of conveniently limiting the rotation arc of the bracket can be achieved.

[0019] Preferably, one end of the return spring is fixed to the surface of the bracket body, and the other end of the return spring is sleeved to the end of the mounting rod.

[0020] By adopting the above technical solution, the rapid reset performance of the support after rotation is improved.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. By utilizing the rotation of the main body of the bracket, when it is necessary to use the rotation of the bracket to drive the brake roller to perform buffer braking on the elevator track, the electric push rod can be opened. Through the extension and retraction of the telescopic rod, the bracket rotatably connected to the mounting base is rotated, and the limit block slides along the inner wall of the limit groove. At the same time, the sliding column and the brake roller slowly approach the elevator track in the connecting groove and gradually press and fit against the surface of the elevator track to achieve the effect of buffer braking on the elevator track.

[0023] 2. By utilizing the movable guide groove, when the position of the brake roller needs to be adjusted, the sliding column can be operated to slide along the inner wall of the movable guide groove. When the subsequent support rotates, the brake roller can perform buffer braking on the elevator track at different positions, improving the flexibility of buffer braking on the elevator track at different positions. Attached Figure Description

[0024] Figure 1 This is a schematic diagram illustrating the overall structure of the safety clamp, representing a key embodiment of this application.

[0025] Figure 2 This is a schematic diagram illustrating the overall structure of the safety clamp from another direction, as shown in the embodiment of this application.

[0026] Figure 3 This is a schematic diagram illustrating the spring position distribution structure, which is the main feature of this application embodiment.

[0027] Figure 4 This is a schematic diagram illustrating the main distribution structure of the limiting groove in the embodiments of this application;

[0028] Reference numerals in the attached drawings: 1. Mounting base; 2. Elevator track; 3. Connecting groove; 4. Telescopic rod; 5. Positioning rod; 6. Mounting groove; 7. Brake body; 8. Sliding column; 9. Brake roller; 10. Moving guide groove; 11. Limiting block; 12. Limiting groove; 13. Electric push rod; 14. Mounting rod; 15. Return spring. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0030] This application discloses a stepless adjustable safety clamp.

[0031] Reference Figures 1-3 The infinitely adjustable safety clamp includes a mounting base 1. An elevator rail 2 is slidably connected to the inner wall of the mounting base 1. An electric push rod 13 is rotatably connected to the outer wall of the mounting base 1. The electric push rod 13 drives a telescopic rod 4 fixedly connected to the output end of the electric push rod 13 to perform telescopic movement. One end of the electric push rod 13 is fixedly connected to the telescopic rod 4. A bracket body 7 is sleeved on the outer wall of the telescopic rod 4 and rotatably connected to the outer wall of the mounting base 1. The rotation of the bracket body 7 drives the brake roller 9 to rotate synchronously.

[0032] The outer wall of the support body 7 is provided with an adjustment mechanism, which includes a sliding column 8, a brake roller 9 and a limit block 11.

[0033] A sliding column 8 is slidably connected to the outer wall of the bracket body 7. A brake roller 9 located on one side of the elevator track 2 is rotatably connected to the bottom of the sliding column 8. The brake roller 9 provides buffer braking for the elevator track 2. A limiting block 11 is slidably connected to the outer wall of the bracket body 7 on the outer wall of the mounting base 1. An installation rod 14 is installed through the outer wall of the bracket body 7 on the outer wall of the mounting base 1. A return spring 15 is fixedly connected to the surface of the bracket body 7 and sleeved on the outer wall of the installation rod 14. When it is necessary to rotate the bracket to drive the brake roller 9 to perform buffer braking on the elevator track 2, the electric push rod 13 can be opened. Through the extension and retraction of the telescopic rod 4, the bracket rotatably connected to the mounting base 1 is rotated, and the limiting block 11 slides along the inner wall of the limiting groove 12. At the same time, the sliding column 8 and the brake roller 9 slowly approach the elevator track 2 in the connecting groove 3 and gradually press and adhere to the surface of the elevator track 2 to achieve the effect of buffer braking on the elevator track 2.

[0034] Reference Figure 2 The inner side wall of the mounting base 1 is provided with a connecting groove 3 at the connection point between it and the elevator track 2. The end of the telescopic rod 4 is detachably connected to a positioning rod 5 that passes through the outer wall of the bracket body 7. This facilitates the effect of convenient limiting and sliding between the elevator track 2 and the mounting base 1 through the setting of the connecting groove 3.

[0035] Reference Figure 2 The outer wall of the bracket body 7 is provided with an installation groove 6 at the connection between it and the positioning rod 5. This installation groove 6 helps to increase the space for bracket installation operations.

[0036] Reference Figure 2 The rotation center of the bracket body 7 and the mounting base 1 are detachably connected by threads, which facilitates the easy disassembly and replacement of the bracket body 7 during long-term use.

[0037] Reference Figure 1 and Figure 3 The outer wall of the bracket body 7 is provided with a moving guide groove 10 at the connection between the sliding column 8 and the outer wall of the bracket body 7. The electric push rod 13 is set at the farthest position of the hinge between the bracket body 7 and the mounting base 1. This allows the pressure between the brake roller 9 and the elevator track 2 to be controlled by the extension of the telescopic rod 4, thereby achieving buffer braking.

[0038] Reference Figure 4 A limiting groove 12 is provided at the connection between the outer wall of the support body 7 and the limiting block 11, which is conducive to limiting the rotation arc of the support body 7 through the opening of the limiting groove 12.

[0039] Reference Figure 3 and Figure 4 One end of the return spring 15 is fixed to the surface of the bracket body 7, and the other end of the return spring 15 is sleeved to the end of the mounting rod 14. This facilitates the easy reset of the bracket after rotation by setting the return spring 15.

[0040] The working principle of the stepless adjustable safety clamp is as follows: When it is necessary to rotate the bracket to drive the brake roller 9 to perform buffer braking on the elevator track 2, the electric push rod 13 can be opened. Through the extension and retraction of the telescopic rod 4, the bracket rotatably connected to the mounting base 1 will rotate, and the limit block 11 will slide along the inner wall of the limit groove 12. At the same time, the sliding column 8 and the brake roller 9 will slowly approach the elevator track 2 in the connecting groove 3 and gradually press and fit against the surface of the elevator track 2 to achieve the effect of buffer braking on the elevator track 2.

[0041] When the position of the brake roller 9 needs to be adjusted, the sliding column 8 is operated so that the sliding column 8 slides along the inner wall of the moving guide groove 10. When the subsequent support rotates, the brake roller 9 performs buffer braking on the elevator track 2 at different positions, improving the flexibility of buffer braking on the elevator track 2 at different positions.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stepless adjustable safety clamp, characterized in that: Includes a mounting base (1), an elevator rail (2) is slidably connected to the inner wall of the mounting base (1), an electric push rod (13) is rotatably connected to the outer wall of the mounting base (1), a telescopic rod (4) is fixedly connected to one end of the electric push rod (13), and a bracket body (7) is sleeved on the outer wall of the telescopic rod (4) and rotatably connected to the outer wall of the mounting base (1). The outer wall of the support body (7) is provided with an adjustment mechanism, which includes a sliding column (8), a brake roller (9) and a limiting block (11); The outer wall of the support body (7) is slidably connected to a sliding column (8), and the bottom of the sliding column (8) is rotatably connected to a brake roller (9) located on one side of the elevator track (2). The outer wall of the mounting base (1) is equipped with a limiting block (11) that is slidably connected to the outer wall of the support body (7). The outer wall of the mounting base (1) is equipped with a mounting rod (14) that penetrates the outer wall of the support body (7). The outer wall of the mounting rod (14) is sleeved with a return spring (15) that is fixedly connected to the surface of the support body (7).

2. The infinitely adjustable safety clamp according to claim 1, characterized in that: The inner wall of the mounting base (1) is provided with a connecting groove (3) at the connection between it and the elevator track (2), and the end of the telescopic rod (4) is detachably connected to a positioning rod (5) that passes through the outer wall of the bracket body (7).

3. The infinitely adjustable safety clamp according to claim 2, characterized in that: The outer wall of the bracket body (7) is provided with an installation groove (6) at the connection between the bracket body (7) and the positioning rod (5).

4. The infinitely adjustable safety clamp according to claim 1, characterized in that: The rotation center of the bracket body (7) and the mounting base (1) are detachably connected by threads.

5. The stepless adjustable safety clamp according to claim 1, characterized in that: The outer wall of the bracket body (7) is provided with a moving guide groove (10) at the connection between the sliding column (8) and the outer wall of the bracket body (7). The electric push rod (13) is located at the farthest position at the hinge of the bracket body (7) and the mounting base (1).

6. The infinitely adjustable safety clamp according to claim 1, characterized in that: A limiting groove (12) is provided at the connection between the outer wall of the support body (7) and the limiting block (11).

7. The infinitely adjustable safety clamp according to claim 1, characterized in that: One end of the reset spring (15) is fixed to the surface of the bracket body (7), and the other end of the reset spring (15) is sleeved to the end of the mounting rod (14).

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