Manual reset safety clamp

Abstract

This application discloses a manually reset safety clamp, relating to the field of elevator safety clamps. It includes a mounting plate on which a solenoid valve is fixedly mounted. A frame is fixedly mounted on one side of the mounting plate, and a bracket is fixedly mounted on the output end of the solenoid valve. This application allows for the disassembly of the outer-mounted rope drum using bolts, and the release of the pull rope as needed. Pulling the pull ring downwards causes the corresponding rope drum and fixing ring to move downwards as well. The pull rope slides guided by two corresponding rotating columns, which in turn causes the bracket and brake roller to move downwards. This leverage principle, achieved through the two rotating columns, allows workers to easily pull the brake roller and bracket with minimal force to complete the reset, eliminating the need for workers to climb into the elevator shaft. Therefore, it further improves the convenience and flexibility of use.

Description

Technical Field

[0001] This application relates to the field of elevator safety clamps, and in particular to manually reset safety clamps. Background Technology

[0002] Resetting the elevator safety gear is a critical safety operation in elevator maintenance. It is mainly used to restore the safety gear to its normal working state and ensure that the elevator can brake in time when it is overspeeding.

[0003] The existing method uses a solenoid valve to drive a brake roller close to the elevator rail, thereby locking the elevator. However, the friction between the brake roller and the elevator rail is large, which prevents the spring in the solenoid valve from resetting the brake roller. Furthermore, the existing method requires a worker to manually pull down the brake roller bracket to reset the brake roller, but this requires a worker to climb into the elevator shaft, which is inconvenient. Therefore, a manual reset safety clamp is needed for resetting the brake roller. Utility Model Content

[0004] To improve the convenience and flexibility of operation and reset, this application provides a manual reset safety clamp.

[0005] The manual reset safety clamp provided in this application adopts the following technical solution: the manual reset safety clamp includes a mounting plate, on which a solenoid valve is fixedly mounted, and on one side of the mounting plate a frame is fixedly mounted. A bracket is fixedly mounted on the output end of the solenoid valve, and a brake roller is provided on the bracket. The bracket is slidably mounted on the mounting plate, and a reset mechanism for resetting the brake roller is provided on the bracket.

[0006] The reset mechanism includes a fixed ring fixedly installed on a bracket, a buckle on the fixed ring, a connecting ring connected to the buckle, a pull rope fixedly installed on the connecting ring, a pull ring fixedly installed at the end of the pull rope, two fixed columns symmetrically fixedly installed on one side of the bracket, a corresponding support plate fixedly installed at one end of each of the two fixed columns, and a corresponding rotating column rotatably installed on one side of each of the two support plates.

[0007] By adopting the above technical solution, pulling the pull ring downwards will cause the corresponding rope drum and fixing ring to move downwards as well. The pull rope slides along the two corresponding rotating columns, which in turn causes the bracket and brake roller to move downwards. This creates a lever effect through the two rotating columns, allowing workers to easily pull the brake roller and bracket with less force to reset them. This eliminates the need for workers to climb into the elevator shaft to operate, thus further improving the convenience and flexibility of use.

[0008] Preferably, the two rotating columns are arranged in an alternating manner.

[0009] By adopting the above technical solution, the two rotating columns are arranged in an alternating manner, thereby achieving the effect of the lever principle.

[0010] Preferably, the pull rope is arranged sequentially between the two fixed columns and the two rotating columns.

[0011] By adopting the above technical solution, the pull rope is sequentially threaded between the two fixed columns and the two rotating columns, which facilitates driving movement.

[0012] Preferably, the pull rope is provided with a rope winding drum, and a portion of the pull rope is wound around the rope winding drum.

[0013] By adopting the above technical solution, the rope can be wound up and unwound by setting up a rope drum.

[0014] Preferably, the upper symmetrical fixed sleeve of the rope drum is provided with two limiting sleeves for limiting the pulling of the rope.

[0015] By adopting the above technical solution, the pull rope can be limited by setting a limiting sleeve.

[0016] Preferably, each end of the rope drum is fixedly installed with a corresponding connecting plate, each of the two connecting plates is fixedly installed with a corresponding base plate, and each of the two base plates is screwed with bolts.

[0017] By adopting the above technical solution, the rope drum installed on the outside can be disassembled by bolts, and the rope can be released as needed.

[0018] Preferably, the bracket is provided with a first guide groove, a second guide groove and a third guide groove respectively, and each of the first guide groove, the second guide groove and the third guide groove is provided with a first guide post, a second guide post and a third guide post respectively, and the frame is provided with a fourth guide groove.

[0019] By adopting the above technical solution, the bracket can be guided and moved by setting the first guide groove and the second guide groove.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. This application utilizes a pull rope and other mechanisms to disassemble the outer-mounted rope drum using bolts, allowing for the release of the pull rope as needed. Pulling the pull ring downwards causes the corresponding rope drum and fixing ring to move downwards as well. The pull rope slides along two rotating pillars, guiding the bracket and brake roller downwards. This leverages the two rotating pillars, enabling workers to easily pull the brake roller and bracket with minimal force to reset them, eliminating the need for workers to climb into the elevator shaft. This significantly improves the convenience and flexibility of use.

[0022] 2. This application utilizes a rope reel or similar device to collect and release the rope, thereby preventing the rope from becoming too long when not in use and thus affecting the normal operation of other components. It also facilitates the positioning of the rope and allows for direct use when needed, avoiding situations where it cannot be found. Therefore, it further improves the convenience and flexibility of use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the manual reset safety clamp according to an embodiment of this application;

[0024] Figure 2 This is a schematic diagram illustrating the overall reset structure, which is the main feature of this application embodiment.

[0025] Figure 3 This is a partial unfolded schematic diagram illustrating the main embodiment of the reset structure in this application;

[0026] Figure 4 This is a schematic diagram illustrating the main structure of the coil material in the embodiments of this application;

[0027] Reference numerals: 1. Mounting plate; 2. Solenoid valve; 3. Frame; 4. Brake; 5. Brake roller; 6. First guide groove; 7. First guide post; 8. Second guide groove; 9. Second guide post; 10. Third guide groove; 11. Third guide post; 12. Fixing ring; 13. Rope drum; 14. Buckle; 15. Connecting ring; 16. Pull rope; 17. Pull ring; 18. Fixing post; 19. Support plate; 20. Rotating post; 21. Connecting plate; 22. Limiting sleeve; 23. Base plate; 24. Bolt; 25. Fourth guide groove. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0029] This application discloses a manual reset safety clamp.

[0030] Reference Figure 1-3The manual reset safety clamp includes a mounting plate 1, a solenoid valve 2 fixedly mounted on the mounting plate 1, a frame 3 fixedly mounted on one side of the mounting plate 1, a bracket 4 fixedly mounted on the output end of the solenoid valve 2, a brake roller 5 provided on the bracket 4, the bracket 4 being slidably mounted on the mounting plate 1, a reset mechanism provided on the bracket 4 for resetting the brake roller 5, and a winding mechanism provided on the reset mechanism.

[0031] The reset mechanism includes a fixed ring 12 fixedly installed on the bracket 4. The fixed ring 12 is provided with a buckle 14. A connecting ring 15 is connected to the buckle 14. A pull rope 16 is fixedly installed on the connecting ring 15. A pull ring 17 is fixedly installed at the end of the pull rope 16. Two fixed columns 18 are symmetrically fixedly installed on one side of the bracket 4. A corresponding support plate 19 is fixedly installed at one end of each of the two fixed columns 18. A corresponding rotating column 20 is rotatably installed on one side of each of the two support plates 19. The two rotating columns 20 are staggered. The pull rope 16 is sequentially threaded between the two fixed columns 18 and the two rotating columns 20.

[0032] The bracket 4 is provided with corresponding first guide groove 6, second guide groove 8 and third guide groove 10. The first guide groove 6, second guide groove 8 and third guide groove 10 are each provided with corresponding first guide post 7, second guide post 9 and third guide post 11. The frame 3 is provided with a fourth guide groove 25.

[0033] In use, the outer rope drum 13 is disassembled using bolt 24, and the pull rope 16 is released as needed. At this time, the pull ring 17 can be pulled downwards. The downward movement of the pull ring 17 will also drive the corresponding rope drum 13 and the fixing ring 12 to move downwards. The pull rope 16 is guided and slid on the corresponding two rotating columns 20. At this time, the bracket 4 and the brake roller 5 can also move downwards. Thus, the two rotating columns 20 form a lever principle, which makes it convenient for workers to pull the brake roller 5 and the bracket 4 with less force and complete the reset. There is no need for workers to climb into the elevator shaft to operate, so the convenience and flexibility of use can be further improved.

[0034] Reference Figure 2-4 The winding mechanism includes a winding drum 13 mounted on a pull rope 16. A portion of the pull rope 16 is wound around the winding drum 13. Two limiting sleeves 22 for limiting the pull rope 16 are symmetrically fixedly mounted on the upper part of the winding drum 13. Corresponding connecting plates 21 are fixedly installed at both ends of the winding drum 13. Corresponding base plates 23 are fixedly installed on both connecting plates 21. Bolts 24 are screwed onto both base plates 23.

[0035] In use, the pull rope 16 is used to collect and release materials, which can prevent the pull rope 16 from being too long when not in use, thus affecting the normal use of other components. It also makes it easier to position the pull rope 16. When needed, it can be used directly without being unable to find it, thus further improving the convenience and flexibility of use.

[0036] The implementation principle of the manual reset safety clamp in this application embodiment is as follows: When in use, when the solenoid valve 2 is energized, it will drive the bracket 4 and the brake roller 5 to move downward. When the solenoid valve 2 is de-energized, the solenoid valve 2 is provided with a reset spring, which will drive the brake roller 5 to move upward through the existing spring. The brake roller 5 moves along the fourth guide groove 25, close to the elevator rail, and stops the elevator. The third guide groove 10 is used to adjust the horizontal position of the brake roller 5.

[0037] When the bracket 4 and brake roller 5 need to be reset, the outer rope drum 13 is first disassembled by bolt 24, and the pull rope 16 is released as needed. At this time, the pull ring 17 can be pulled down. The pull ring 17 moves down and will drive the corresponding rope drum 13 and fixing ring 12 to move down as well. The pull rope 16 is guided and slid on the corresponding two rotating columns 20. At this time, the bracket 4 and brake roller 5 can also move down. Thus, the two rotating columns 20 form a lever principle, which makes it convenient for workers to pull the brake roller 5 and bracket 4 with less force and complete the reset without the need for workers to climb into the elevator shaft to operate. Therefore, it can further improve the convenience and flexibility of use.

[0038] By feeding and releasing the pull rope 16, the length of the pull rope 16 when not in use can be prevented from affecting the normal use of other components. It also makes it easier to position the pull rope 16. When needed, it can be used directly without being lost. Therefore, it can further improve the convenience and flexibility of use.

[0039] The elevator rail described in this application is located on the side away from the bracket 4, and further to the left of the brake roller 5. The rope drum 13 in this application is installed on the outside by bolts 24, and the specific position can be selected and installed according to the usage requirements. Furthermore, the installation position is not limited.

[0040] 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 manual reset safety clamp, including a mounting plate (1), characterized in that: A solenoid valve (2) is fixedly installed on the mounting plate (1). A frame (3) is fixedly installed on one side of the mounting plate (1). A bracket (4) is fixedly installed at the output end of the solenoid valve (2). A brake roller (5) is provided on the bracket (4). The bracket (4) is slidably installed on the mounting plate (1). A reset mechanism for resetting the brake roller (5) is provided on the bracket (4). The reset mechanism includes a fixed ring (12) fixedly installed on the bracket (4), a buckle (14) is provided on the fixed ring (12), a connecting ring (15) is connected to the buckle (14), a pull rope (16) is fixedly installed on the connecting ring (15), a pull ring (17) is fixedly installed at the end of the pull rope (16), two fixed columns (18) are symmetrically fixedly installed on one side of the bracket (4), a corresponding support plate (19) is fixedly installed at one end of each of the two fixed columns (18), and a corresponding rotating column (20) is rotatably installed on one side of each of the two support plates (19).

2. The manual reset safety clamp according to claim 1, characterized in that: The two rotating columns (20) are arranged in an alternating manner.

3. The manual reset safety clamp according to claim 1, characterized in that: The pull rope (16) is arranged sequentially between the two fixed posts (18) and the two rotating posts (20).

4. The manual reset safety clamp according to claim 3, characterized in that: The pull rope (16) is provided with a rope drum (13), and a portion of the pull rope (16) is wound around the rope drum (13).

5. The manual reset safety clamp according to claim 4, characterized in that: The upper symmetrical fixed sleeve of the rope drum (13) is provided with two limiting sleeves (22) for limiting the pull rope (16).

6. The manual reset safety clamp according to claim 5, characterized in that: Both ends of the rope drum (13) are fixedly installed with corresponding connecting plates (21), and both connecting plates (21) are fixedly installed with corresponding base plates (23), and both base plates (23) are screwed with bolts (24).

7. The manual reset safety clamp according to claim 1, characterized in that: The bracket (4) is provided with corresponding first guide groove (6), second guide groove (8) and third guide groove (10), and each of the first guide groove (6), second guide groove (8) and third guide groove (10) is provided with corresponding first guide post (7), second guide post (9) and third guide post (11), and the frame (3) is provided with a fourth guide groove (25).

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