High-speed elevator safety tongs integrated with bidirectional self-locking mechanism

Abstract

The utility model relates to the technical field of elevator safety tongs, and discloses a high-speed elevator safety tongs integrated with a bidirectional self-locking mechanism, which solves the problem that the existing elevator safety tongs cannot realize bidirectional limiting, and comprises a safety tongs body sleeved on an elevator guide rail and connected with a steel rope of a limiter. The safety tongs body is composed of a supporting sleeve, two first caliper assemblies, two second caliper assemblies, a driving plate, two self-locking limiting stoppers and a lever swing arm, the lever swing arm is rotationally connected with the supporting sleeve through a hinge shaft, one end of the lever swing arm is fixedly connected with a limiting stopper steel rope, and a limiting supporting column is arranged at the other end of the lever swing arm; a strip-shaped limiting vertical groove is formed in the middle of the front face of the supporting sleeve, the self-locking limiting device is slidably connected into the strip-shaped limiting vertical groove, and limiting buckling grooves are formed in the bottom ends and the top ends of the two sides in the strip-shaped limiting vertical groove correspondingly. By means of the elevator safety tongs, bidirectional limiting can be achieved, and the self-locking function is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of elevator safety clamp technology, specifically a high-speed elevator safety clamp with an integrated bidirectional self-locking mechanism. Background Technology

[0002] Elevator safety brakes are one of the safety facilities in elevators. Existing domestic elevator safety brakes are usually unidirectional safety brake structures, which can prevent the elevator from falling suddenly and ensure the safety of the elevator and passengers. However, elevators can not only fall suddenly but also rise rapidly. When the elevator crashes to the top due to a malfunction, the existing safety brakes cannot provide safety protection. Therefore, this application proposes a high-speed elevator safety brake with an integrated bidirectional self-locking mechanism. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a high-speed elevator safety clamp with an integrated bidirectional self-locking mechanism, which effectively solves the problem that the existing elevator safety clamps cannot achieve bidirectional limiting.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-speed elevator safety clamp integrating a bidirectional self-locking mechanism, comprising a safety clamp body, the safety clamp body being sleeved on the elevator guide rail and connected to the limiter steel cable, the safety clamp body consisting of a support sleeve, two sets of caliper assemblies (first and second), a drive plate, two self-locking limiters, and a lever arm; the support sleeve being fixedly connected to the side of the elevator car; the two sets of caliper assemblies (first) being respectively connected to the top ends of both sides inside the support sleeve; the two sets of caliper assemblies (second) being respectively connected to the bottom ends of both sides inside the support sleeve; and the drive plate... The lever arm is slidably connected to the inner side of the support sleeve. Two self-locking limiters are fixedly connected to one side of the drive plate and slidably connected to the support sleeve. The lever arm is rotatably connected to the support sleeve through a hinge shaft. One end of the lever arm is fixedly connected to the limiter steel cable. The other end of the lever arm is fixedly provided with a limit support column. The limit support column passes through the drive plate. A strip-shaped limit vertical groove is opened in the middle of the front of the support sleeve. The self-locking limiter is slidably connected to the inside of the strip-shaped limit vertical groove. Limiting buckle grooves matching the self-locking limiter are opened at the bottom and top of both sides of the inside of the strip-shaped limit vertical groove.

[0005] Preferably, both the first caliper assembly and the second caliper assembly consist of a limiting support base, a limiting caliper plate, and a limiting head. The limiting support base is fixedly connected to the support sleeve, the limiting caliper plate is embedded in one side of the limiting support base and slidably connected to the limiting support base, and the limiting head is fixedly connected to the side of the limiting caliper plate.

[0006] Preferably, the drive plate has four transverse limiting slots that are slidably connected to the limiting head.

[0007] Preferably, the drive plate has a limiting mounting groove in the middle position that is slidably connected to the limiting support column, and both ends of the drive plate are provided with a number of universal ball bearings.

[0008] Preferably, the self-locking limiter consists of a limit slider, two limit plates, a rotating shaft, and a spring. The limit plates are rotatably connected to the inside of the limit slider via the rotating shaft, and the spring is fixedly connected between the limit plates and the limit slider.

[0009] Preferably, the limiting slider has two inner grooves that match the limiting buckle, the rotating shaft and the spring, and one end of the limiting slider has a transverse unlocking groove that communicates with the inner grooves.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] (1) In operation, by setting up a safety clamp body consisting of a support sleeve, two sets of clamp assembly one, two sets of clamp assembly two, a drive plate, two self-locking limiters and a lever swing arm, bidirectional safety protection can be achieved when the elevator drops sharply and hits the top. By setting up clamp assembly one and clamp assembly two consisting of a limit support seat, a limit clamp plate and a limit head, locking and limiting can be achieved by using the friction with the elevator guide rail.

[0012] (2) By setting a strip-shaped limit groove, a limit buckle groove, and a self-locking limiter consisting of a limit slider, two limit buckles, a rotating shaft and a spring, self-locking limit can be achieved after the caliper assembly 1 and caliper assembly 2 are locked with the elevator guide rail, thus preventing the caliper assembly 1 and caliper assembly 2 from opening accidentally and further improving safety. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the high-speed elevator safety clamp structure with integrated bidirectional self-locking mechanism of this utility model;

[0016] Figure 2 This is a cross-sectional view of the high-speed elevator safety clamp with integrated bidirectional self-locking mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the caliper assembly 1 and the caliper assembly 2 of this utility model and the support sleeve;

[0018] Figure 4 This is a schematic diagram of the connection structure between the lever arm and the limiter steel rope of this utility model;

[0019] Figure 5 This is a schematic diagram of the connection structure between the drive board and the self-locking limiter of this utility model;

[0020] Figure 6 This is a schematic diagram of the self-locking limiter structure of this utility model;

[0021] In the diagram: 1. Safety clamp body; 2. Elevator guide rail; 3. Limiter steel rope; 4. Support sleeve; 5. Clamp assembly one; 6. Clamp assembly two; 7. Drive plate; 8. Self-locking limiter; 9. Lever swing arm; 10. Hinge shaft; 11. Limiter support column; 12. Strip-shaped limiter vertical groove; 13. Limiter buckle groove; 14. Limiter support seat; 15. Limiter clamp plate; 16. Limiter head; 17. Lateral limiter short groove; 18. Limiter mounting groove; 19. Universal ball bearing; 20. Limiter slider; 21. Limiter buckle plate; 22. Rotating shaft; 23. Spring; 24. Inner groove; 25. Lateral unlocking through groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Depend on Figures 1 to 6 This invention discloses a high-speed elevator safety clamp with an integrated bidirectional self-locking mechanism, comprising a safety clamp body 1, which is sleeved on the elevator guide rail 2 and connected to the limiter steel rope 3. The safety clamp body 1 consists of a support sleeve 4, two sets of first clamp assemblies 5, two sets of second clamp assemblies 6, a drive plate 7, two self-locking limiters 8, and a lever swing arm 9. The support sleeve 4 is fixedly connected to the side of the elevator car. The two sets of first clamp assemblies 5 are respectively connected to the top ends of both sides inside the support sleeve 4, and the two sets of second clamp assemblies 6 are respectively connected to the bottom ends of both sides inside the support sleeve 4. The drive plate 7 is slidably connected to the inner side of the support sleeve 4. Two self-locking limiters 8 are fixedly connected to one side of the drive plate 7 and slidably connected to the support sleeve 4. The lever arm 9 is rotatably connected to the support sleeve 4 through the hinge shaft 10. One end of the lever arm 9 is fixedly connected to the limiter steel rope 3. The other end of the lever arm 9 is fixedly provided with a limit support column 11. The limit support column 11 passes through the drive plate 7. A strip-shaped limit vertical groove 12 is opened in the middle of the front of the support sleeve 4. The self-locking limiter 8 is slidably connected to the inside of the strip-shaped limit vertical groove 12. Limiting buckle grooves 13 matching the self-locking limiter 8 are opened at the bottom and top of both sides of the inside of the strip-shaped limit vertical groove 12.

[0024] When the elevator car descends rapidly or rushes to the top, the elevator limit switch locks, thereby limiting the limit switch steel rope 3. The limit switch steel rope 3 stops moving, and the lever arm 9 swings. When the elevator car moves downward, the lever arm 9 rotates clockwise, the drive plate 7 moves downward relative to the support sleeve 4, and the two sets of clamp assemblies 6 simultaneously lock and limit the elevator guide rail 2. When the elevator car moves upward, the lever arm 9 rotates counterclockwise, the drive plate 7 moves upward relative to the support sleeve 4, and the two sets of clamp assemblies 5 simultaneously lock and limit the elevator guide rail 2.

[0025] Both caliper assembly 1 5 and caliper assembly 2 6 are composed of a limiting support base 14, a limiting caliper plate 15 and a limiting head 16. The limiting support base 14 is fixedly connected to the support sleeve 4. The limiting caliper plate 15 is embedded in one side of the limiting support base 14 and is slidably connected to the limiting support base 14. The limiting head 16 is fixedly connected to the side of the limiting caliper plate 15.

[0026] When the limiting clamp 15 moves relative to the limiting support 14, it also undergoes lateral displacement, enabling it to move towards or away from the elevator guide rail 2. The limiting head 16 can form a connection with the drive plate 7.

[0027] The drive plate 7 has four transverse limiting short grooves 17 that are slidably connected to the limiting head 16, which can improve the mobility of the limiting head 16 and limit the limiting head 16 at the same time.

[0028] The drive plate 7 has a limiting mounting groove 18 in the middle position that is slidably connected to the limiting support column 11, which can improve the mobility of the limiting support column 11. Both ends of the drive plate 7 are provided with several universal balls 19, which can reduce the friction with the inner wall of the support sleeve 4.

[0029] The self-locking limiter 8 consists of a limit slider 20, two limit buckles 21, a rotating shaft 22 and a spring 23. The limit buckles 21 are rotatably connected to the inside of the limit slider 20 through the rotating shaft 22, and the spring 23 is fixedly connected between the limit buckles 21 and the limit slider 20.

[0030] During the upward or downward movement of the drive plate 7, the self-locking limiter 8 is driven to move synchronously. When the limit plate 21 coincides with the limit groove 13, the spring 23 pushes the limit plate 21 to rotate around the rotating shaft 22, so that the limit plate 21 and the limit groove 13 form a limiting effect.

[0031] The limiting slider 20 has two inner grooves 24 that match the limiting buckle 21, the rotating shaft 22 and the spring 23, which can realize the installation of the limiting buckle 21, the rotating shaft 22 and the spring 23. One end of the limiting slider 20 has a transverse unlocking groove 25 that communicates with the inner groove 24, which can allow the staff to manually reset the limiting buckle 21 after maintenance.

[0032] In operation, the safety clamp body, consisting of a support sleeve, two sets of caliper assemblies (first and second), a drive plate, two self-locking limiters, and a lever arm, provides bidirectional safety protection during rapid descent and overshoot of the elevator. Caliper assemblies one and two, composed of a limit support base, a limit clamp plate, and a limit head, utilize friction with the elevator guide rail to achieve locking and limiting. The inclusion of a strip-shaped limit groove, a limit latch groove, and a self-locking limiter consisting of a limit slider, two limit latch plates, a rotating shaft, and a spring ensures self-locking and limiting after caliper assemblies one and two lock onto the elevator guide rail, preventing accidental opening and further enhancing safety.

Claims

1. A high-speed elevator safety brake with an integrated bidirectional self-locking mechanism, comprising a safety brake body (1), characterized in that: The safety clamp body (1) is sleeved on the elevator guide rail (2) and connected to the limiter steel rope (3). The safety clamp body (1) consists of a support sleeve (4), two sets of caliper assemblies (5), two sets of caliper assemblies (6), a drive plate (7), two self-locking limiters (8), and a lever arm (9). The support sleeve (4) is fixedly connected to the side of the elevator car. The two sets of caliper assemblies (5) are respectively connected to the top of the two sides inside the support sleeve (4). The two sets of caliper assemblies (6) are respectively connected to the bottom of the two sides inside the support sleeve (4). The drive plate (7) is slidably connected to the inside of the support sleeve (4). The two self-locking limiters (8) are both fixedly connected to the drive plate. (7) is slidably connected to the support sleeve (4) on one side. The lever arm (9) is rotatably connected to the support sleeve (4) through the hinge shaft (10). One end of the lever arm (9) is fixedly connected to the limiter steel rope (3). The other end of the lever arm (9) is fixedly provided with a limit support column (11). The limit support column (11) passes through the drive plate (7). A strip-shaped limit vertical groove (12) is opened in the middle position of the front of the support sleeve (4). The self-locking limiter (8) is slidably connected to the inside of the strip-shaped limit vertical groove (12). The bottom and top ends of both sides of the strip-shaped limit vertical groove (12) are provided with limit buckle grooves (13) that match the self-locking limiter (8).

2. The high-speed elevator safety clamp with an integrated bidirectional self-locking mechanism according to claim 1, characterized in that: Both the first caliper assembly (5) and the second caliper assembly (6) are composed of a limiting support base (14), a limiting caliper plate (15), and a limiting head (16). The limiting support base (14) is fixedly connected to the support sleeve (4). The limiting caliper plate (15) is embedded in one side of the limiting support base (14) and is slidably connected to the limiting support base (14). The limiting head (16) is fixedly connected to the side of the limiting caliper plate (15).

3. A high-speed elevator safety clamp with an integrated bidirectional self-locking mechanism according to claim 2, characterized in that: The drive plate (7) has four transverse limiting slots (17) that are slidably connected to the limiting head (16).

4. A high-speed elevator safety clamp with an integrated bidirectional self-locking mechanism according to claim 1, characterized in that: The drive plate (7) has a limiting mounting groove (18) in the middle position that is slidably connected to the limiting support column (11), and several universal ball bearings (19) are provided at both ends of the drive plate (7).

5. A high-speed elevator safety clamp with an integrated bidirectional self-locking mechanism according to claim 1, characterized in that: The self-locking limiter (8) consists of a limit slider (20), two limit buckles (21), a rotating shaft (22) and a spring (23). The limit buckles (21) are rotatably connected to the inside of the limit slider (20) through the rotating shaft (22), and the spring (23) is fixedly connected between the limit buckles (21) and the limit slider (20).

6. A high-speed elevator safety clamp with an integrated bidirectional self-locking mechanism according to claim 5, characterized in that: The limiting slider (20) has two inner grooves (24) that match the limiting buckle (21), the rotating shaft (22) and the spring (23). One end of the limiting slider (20) has a transverse unlocking groove (25) that communicates with the inner groove (24).

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