Power-off self-locking brake mechanism of rope climbing machine

Abstract

The utility model relates to a power-off self-locking brake mechanism of a rope climbing machine, and belongs to the field of brake mechanisms. The power-off self-locking brake mechanism of the rope climbing machine comprises a base arranged on a shell of the rope climbing machine; the locking piece is rotationally connected to the base; the control assembly is arranged on the base and comprises a control piece, a control shaft and an elastic piece; the control piece is connected with the control shaft and drives the control shaft to reciprocate in the length direction of the control shaft. The control shaft extends to be connected with the locking piece and is used for driving the locking piece to move in a reciprocating mode in the direction towards or away from the shell. The elastic piece is arranged on the control shaft in a sleeving mode and used for supporting the locking piece, and the elastic piece is always in a compressed state. When the control piece fails, under the action of resilience force of the elastic piece, the control shaft controls the locking piece to rotate, so that the locking piece locks the gear, and the function of automatic locking during power failure is achieved.

Description

Technical Field

[0001] This application relates to the field of braking mechanisms, and in particular to a power-off self-locking braking mechanism for a rope climbing machine. Background Technology

[0002] As a vertical lifting device, rope climbing machines are widely used in high-altitude operations, fire rescue, and other fields. Currently, the braking technology of rope climbing machines mainly relies on electrically driven electromagnetic braking or mechanical friction braking, both of which are installed on the housing of the rope climbing machine's transmission mechanism.

[0003] Electromagnetic braking primarily utilizes electric power to drive the brake for rapid braking, but it malfunctions when power is lost. Mechanical friction braking, on the other hand, uses friction to achieve braking, but its response is slow, and its braking effectiveness decreases due to wear after prolonged use. Therefore, there is an urgent need for a braking structure that can respond quickly in the event of a power outage. Summary of the Invention

[0004] To address the aforementioned issues, this application provides a power-off self-locking braking mechanism for a rope climbing machine.

[0005] This application provides a power-off self-locking braking mechanism for a rope climbing machine, which adopts the following technical solution:

[0006] A self-locking braking mechanism for a rope climbing machine in the event of a power failure includes:

[0007] The base is mounted on the casing of the rope climbing machine;

[0008] The locking plate is rotatably connected to the base;

[0009] A control assembly, mounted on a base, includes a control element, a control shaft, and an elastic element;

[0010] The control component is connected to the control shaft and drives the control shaft to reciprocate along its own length direction;

[0011] The control shaft extends to connect with the locking plate, and is used to drive the locking plate to reciprocate in a direction toward or away from the housing;

[0012] The elastic element is sleeved on the control shaft to support the locking piece, and the elastic element is always in a compressed state.

[0013] By adopting the above technical solution, when the control component loses power support, the elastic component drives the control shaft to move under the action of the elastic force, and the control shaft then drives the locking plate to rotate, so that the locking plate meshes with the gear in the housing, thereby realizing the function of self-locking when the power is off.

[0014] Preferably, the elastic element includes a spring, one end of which abuts against a locking piece and the other end of which abuts against a control element or a base.

[0015] By adopting the above technical solution, the spring is in a compressed state during the operation of the control component. After the control component loses power, the spring's rebound force drives the control shaft to move, which in turn drives the locking plate to move, thus locking the gear.

[0016] Preferably, the control shaft has a first through hole, a connecting rod is provided in the first through hole, the locking plate has a second through hole, the outer diameter of the connecting rod is the same as the inner diameter of the first through hole, and the inner diameter of the second through hole is larger than the inner diameter of the first through hole.

[0017] By adopting the above technical solution, when the control shaft moves, it drives the connecting rod to move. The connecting rod moves until it abuts against the inner wall of the second through hole to control the movement of the locking piece.

[0018] Preferably, the connecting rod is provided with a first limiting plate, which abuts against the locking piece.

[0019] By adopting the above technical solution, the first limiting plate provides a limit for the connecting rod, making it difficult for the connecting rod to separate from the control shaft.

[0020] Preferably, the base has a clearance groove, the locking piece is disposed in the clearance groove, the base has a support hole communicating with the clearance groove, the support hole has a support shaft, the outer diameter of the support shaft is the same as the inner diameter of the support hole, and the support shaft passes through the locking piece.

[0021] Preferably, the locking plate has a connecting hole, the support shaft passes through the connecting hole, and the inner diameter of the connecting hole is larger than the outer diameter of the support shaft.

[0022] By adopting the above technical solution, since the inner diameter of the connecting hole is larger than the outer diameter of the support shaft, the other end of the locking piece can also move, and the connecting hole can compensate for the moving distance of the locking piece.

[0023] Preferably, the support shaft is provided with a second limiting plate, which abuts against the base.

[0024] By adopting the above technical solution, the second limiting plate provides a limit for the support shaft, making it difficult for the support shaft to separate from the base.

[0025] Preferably, the locking plate is provided with a plurality of locking blocks, and a self-locking space for locking the gear is formed between two adjacent locking blocks.

[0026] By adopting the above technical solution, multiple locking blocks facilitate the locking plates to lock the gears, thereby improving the locking plates' ability to limit the gears.

[0027] Preferably, the housing has a mounting hole for mounting the base, the inner wall of the mounting hole has a first mounting plate and two opposing second mounting plates, the base has a first mounting groove that mates with the first mounting plate, the first mounting plate is disposed in the first mounting groove, the base has two opposing second mounting grooves, each of the second mounting plates corresponds to one second mounting groove, and the second mounting plate is disposed in the second mounting groove.

[0028] By adopting the above technical solution, the first mounting plate cooperates with the first mounting groove to provide the base with the first layer of support. The two opposing second mounting plates cooperate with the corresponding second mounting grooves to provide the base with the second layer of support, thereby increasing the contact area between the base and the housing and improving the connection stability between the base and the housing.

[0029] Preferably, the base has a clearance hole that mates with the gear.

[0030] By adopting the above technical solution, the clearance hole makes it less likely for the gear to collide with the base.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] 1. By setting an elastic element that is always in a compressed state, when the control element is de-energized, the control shaft controls the locking plate to rotate under the action of the elastic element's rebound force, and the locking plate locks the gear, thus realizing the self-locking function when the power is off;

[0033] 2. By setting a second through hole with an inner diameter larger than the first through hole, it is convenient for the control shaft to drive the locking plate to move, so as to realize the function of locking the gear.

[0034] 3. By setting multiple locking blocks, the locking effect of the locking plate on the gear is improved, thereby improving the overall braking effect of the self-locking mechanism. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0036] Figure 2 This is a structural schematic diagram illustrating the positional relationship between the base and the control components in an embodiment of this application;

[0037] Figure 3 This is a structural schematic diagram illustrating the positional relationship between the locking plate, the connecting rod, and the support shaft in an embodiment of this application;

[0038] Figure 4This is a structural schematic diagram illustrating the positional relationship between the locking block and the gear in an embodiment of this application;

[0039] Figure 5 This is a structural schematic diagram illustrating the positional relationship between the first mounting plate, the second mounting plate, and the housing in an embodiment of this application.

[0040] Explanation of reference numerals in the attached drawings: 1. Housing; 11. Mounting hole; 111. First mounting plate; 112. Second mounting plate; 2. Base; 21. Relief groove; 22. Support hole; 23. Support shaft; 231. Second limiting plate; 24. Relief hole; 25. First mounting groove; 26. Second mounting groove; 3. Locking piece; 31. Second through hole; 32. Connecting hole; 33. Locking block; 4. Control assembly; 41. Control component; 42. Control shaft; 421. First through hole; 422. Connecting rod; 423. First limiting plate; 5. Spring. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0042] This application discloses a power-off self-locking braking mechanism for a rope climbing machine. (Refer to...) Figure 1 and Figure 2 A power-off self-locking braking mechanism for a rope climbing machine is provided, mounted on the housing 1 of the rope climbing machine. It includes a base 2 and a locking plate 3. The base 2 is connected to the housing 1, and the locking plate 3 is rotatably connected to the base 2. A control assembly 4 for controlling the locking plate 3 is provided on the base 2. The control assembly 4 includes a control element 41 and a control shaft 42. The control element 41 is located on the base 2 and connected to the control shaft 42. The control element 41 drives the control shaft 42 to reciprocate along its own axial direction. The control shaft 42 is connected to the locking plate 3. An elastic element is provided on the control shaft 42, and the elastic element is always in a compressed state.

[0043] When the control component 41 loses power, the elastic component drives the control shaft 42 to move under the action of the elastic force. The control shaft 42 then drives the locking piece 3 to rotate, so that the locking piece 3 meshes with the gear in the housing 1, realizing the self-locking function when the power is off.

[0044] Reference Figure 2 The elastic element includes a spring 5, one end of which abuts against the locking piece 3 and the other end of which abuts against the control element 41. The control element 41 is a push-pull electromagnet, and the control shaft 42 is connected to the output end of the push-pull electromagnet. The push-pull electromagnet is connected to the base 2 by bolts.

[0045] In this embodiment, the compressed state of the spring 5 includes three states: the first state is when the control shaft 42 is retracted to its maximum stroke, the spring 5 is compressed to the maximum extent during use; the second state is when the control shaft 42 is in motion, the spring 5 gradually releases its internal elastic potential energy and gradually recovers its deformation until the locking piece 3 abuts against the gear; the third state is when the locking piece 3 abuts against the gear, the spring 5 still has some elastic potential energy inside, so that the locking piece 3 abuts against the gear relatively stably.

[0046] When the control component 41 loses power, the spring 5 drives the control shaft 42 to move under the action of the spring 5's rebound force. The control shaft 42 then controls the locking plate 3 to rotate, so the locking plate 3 can automatically lock the gear when the power is off.

[0047] Reference Figure 3 To facilitate locking of the gear by the locking plate 3, a first through hole 421 is provided on the control shaft 42, and a connecting rod 422 is provided in the first through hole 421. A second through hole 31 is provided on the locking plate 3. The outer diameter of the connecting rod 422 is the same as the inner diameter of the first through hole 421, and the inner diameter of the second through hole 31 is larger than the inner diameter of the first through hole 421. The first through hole 421 and the second through hole 31 are connected by the control shaft 42.

[0048] The base 2 has a clearance groove 21, and the locking piece 3 is disposed in the clearance groove 21. The base 2 has a support hole 22 that communicates with the clearance groove 21, and a support shaft 23 is disposed in the support hole 22. The outer diameter of the support shaft 23 is the same as the inner wall of the support hole 22, and the support shaft 23 passes through the locking piece 3. The locking piece 3 has a connecting hole 32, through which the support shaft 23 passes, and the inner diameter of the connecting hole 32 is larger than the outer diameter of the support shaft 23.

[0049] As the control shaft 42 moves, it drives the connecting rod 422 to move as well. The connecting rod 422 moves until it abuts against the inner wall of the second through hole 31, thereby controlling the movement of the locking piece 3. Simultaneously, since the inner diameter of the connecting hole 32 is larger than the outer diameter of the support shaft 23, the other end of the locking piece 3 can also move. At this time, the gaps between the connecting rod 422 and the second through hole 31, and between the connecting hole 32 and the support shaft 23, compensate for the movement distance of the locking piece 3, thus locking the gear.

[0050] Reference Figure 3 A first limiting plate 423 is fixed on the connecting rod 422, and the first limiting plate 423 abuts against the locking piece 3. A second limiting plate 231 is fixed on the support shaft 23, and the second limiting plate 231 abuts against the base 2.

[0051] The first limiting plate 423 provides a limit for the connecting rod 422, making it difficult for the connecting rod 422 to separate from the control shaft 42. The second limiting plate 231 provides a limit for the support shaft 23, making it difficult for the support shaft 23 to separate from the base 2, thereby improving the stability of the locking piece 3 during use.

[0052] Reference Figure 4 A plurality of locking blocks 33 are fixed on the locking plate 3, and a self-locking space for locking the gear is formed between two adjacent locking blocks 33. The multiple locking blocks 33 facilitate the locking plate 3 in locking the gear, thereby improving the locking plate 3's ability to limit the gear.

[0053] Reference Figure 2 The base 2 has a clearance hole 24 that cooperates with the gear, which makes it less likely for the gear to collide with the base 2.

[0054] Reference Figure 2 and Figure 5 To facilitate the installation of the base 2, the housing 1 has mounting holes 11 for mounting the base 2. The inner wall of the mounting hole 11 has a first mounting plate 111 and two opposing second mounting plates 112. The base 2 has a first mounting groove 25 that mates with the first mounting plate 111, and the first mounting plate 111 is disposed in the first mounting groove 25. The base 2 has two opposing second mounting grooves 26, and each second mounting plate 112 corresponds to one second mounting groove 26, with the second mounting plate 112 disposed in the second mounting groove 26.

[0055] The first mounting plate 111 cooperates with the first mounting groove 25 to provide the base 2 with the first additional support. The two opposite second mounting plates 112 cooperate with the corresponding second mounting grooves 26 to provide the base 2 with the second additional support, thereby increasing the contact area between the base 2 and the housing 1 and improving the connection stability between the base 2 and the housing 1.

[0056] The implementation principle of this embodiment is as follows: the control component 41 drives the control shaft 42 to move, the control shaft 42 drives the locking plate 3 to move, and the locking plate 3 can lock the gear. At this time, the elastic element is in a compressed state. When the control component 41 fails, under the action of the elastic element's rebound force, the control shaft 42 controls the locking plate 3 to rotate, so that the locking plate 3 locks the gear, realizing the function of automatic locking when power is off.

[0057] 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 self-locking braking mechanism for a rope climbing machine in the event of power failure, characterized in that... ,include: The base (2) is disposed on the shell (1); The locking piece (3) is rotatably connected to the base (2); The control assembly (4) is disposed on the base (2) and includes a control element (41), a control shaft (42) and an elastic element; The control component (41) is connected to the control shaft (42) and drives the control shaft (42) to reciprocate along its own length direction; The control shaft (42) extends to connect with the locking piece (3) to drive the locking piece (3) to reciprocate in a direction toward or away from the housing (1); The elastic element is sleeved on the control shaft (42) to support the locking piece (3), and the elastic element is always in a compressed state.

2. The self-locking braking mechanism for a rope climbing machine upon power failure according to claim 1, characterized in that: The elastic element includes a spring (5), one end of which abuts against the locking piece (3) and the other end of which abuts against the control element (41) or the base (2).

3. The self-locking braking mechanism for a rope climbing machine upon power failure according to claim 1, characterized in that: The control shaft (42) has a first through hole (421) and a connecting rod (422) is provided in the first through hole (421). The locking piece (3) has a second through hole (31). The outer diameter of the connecting rod (422) is the same as the inner diameter of the first through hole (421), and the inner diameter of the second through hole (31) is larger than the inner diameter of the first through hole (421).

4. The self-locking braking mechanism for a rope climbing machine upon power failure according to claim 3, characterized in that: The connecting rod (422) is provided with a first limiting plate (423), which abuts against the locking piece (3).

5. The self-locking braking mechanism for a rope climbing machine upon power failure according to claim 3, characterized in that: The base (2) is provided with a relief groove (21), and the locking piece (3) is disposed in the relief groove (21). The base (2) is provided with a support hole (22) that communicates with the relief groove (21). A support shaft (23) is provided in the support hole (22). The outer diameter of the support shaft (23) is the same as the inner diameter of the support hole (22). The support shaft (23) passes through the locking piece (3).

6. The self-locking braking mechanism for a rope climbing machine upon power failure according to claim 5, characterized in that: The locking piece (3) has a connecting hole (32), and the support shaft (23) passes through the connecting hole (32). The inner diameter of the connecting hole (32) is larger than the outer diameter of the support shaft (23).

7. The self-locking braking mechanism for a rope climbing machine upon power failure according to claim 6, characterized in that: The support shaft (23) is provided with a second limiting plate (231), which abuts against the base (2).

8. The self-locking braking mechanism for a rope climbing machine upon power failure according to claim 1, characterized in that: The locking plate (3) is provided with a plurality of locking blocks (33), and a self-locking space for locking the gear is formed between two adjacent locking blocks (33).

9. The self-locking braking mechanism for a rope climbing machine upon power failure according to claim 1, characterized in that: The housing (1) has an installation hole (11) for mounting the base (2). The inner wall of the installation hole (11) is provided with a first mounting plate (111) and two opposing second mounting plates (112). The base (2) has a first mounting groove (25) that cooperates with the first mounting plate (111). The first mounting plate (111) is disposed in the first mounting groove (25). The base (2) has two opposing second mounting grooves (26). Each second mounting plate (112) corresponds to a second mounting groove (26). The second mounting plate (112) is disposed in the second mounting groove (26).

10. The self-locking braking mechanism for a rope climbing machine upon power failure according to claim 1, characterized in that: The base (2) is provided with a clearance hole (24) that cooperates with the gear.

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