Elevator braking structure with high safety

Abstract

The high-safety elevator braking structure comprises a bottom plate, a plurality of first rotating blocks are fixedly connected to the top end of the bottom plate, telescopic sleeve rods are rotatably connected to the inner walls of the first rotating blocks correspondingly, and limiting springs are slidably connected to the inner walls of the two telescopic sleeve rods correspondingly; the top ends of the two limiting springs are fixedly connected with sliding rods, the top ends of the two sliding rods are rotationally connected with a linkage rod, one end of the inner wall of the linkage rod is rotationally connected with a pushing terminal, the bottom end of the pushing terminal is rotationally connected with a transmission rod, and threaded rods penetrate through the positions, close to the center, of the bottom ends of the two transmission rods in a threaded mode. And the transmission rods are fixedly connected with limiting rings, the two ends of each limiting ring are fixedly connected with fixing blocks, and the bottom ends of the two fixing blocks are fixedly connected with a motor box. The elevator braking structure has the advantages of being higher in safety and more stable in elevator braking.

Description

Technical Field

[0001] The invention belongs to the technical field of elevator braking, and in particular relates to an elevator braking structure with high safety. Background Art

[0002] The elevator brake is an important safety device for elevators. Its safety and reliability are one of the important factors to ensure the safe operation of elevators. The bidirectional thrust elevator brake generates bidirectional electromagnetic thrust when powered on, which causes the brake mechanism to be separated from the rotating part of the motor (i.e. released). When the power is off, the electromagnetic force disappears, and under the action of the external brake spring pressure, a friction brake (hereinafter referred to as the brake) is formed for power-off braking. It is mainly matched with the drive motor on the escalator traction machine to form an electromagnetic brake three-phase asynchronous motor for escalators. It is widely used in occasions where it can achieve smooth parking and fast starting, as well as safe (anti-danger) braking when the power is off.

[0003] However, the conventional device still has the following problems when used: 1. Since most of the existing brakes use valve brakes, their clamping force is insufficient, which can easily cause the elevator to shake. Long-term use can easily cause the elevator to shake, resulting in damage to the elevator brakes and unstable elevator stops, affecting the service life of the elevator.

[0004] 2. Most of the existing elevator brakes are not very safe and the connection between the brake plates is not stable, which can easily lead to damage to the brake plates, causing the elevator to be unable to stop running, posing a hidden danger to passenger safety. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide an elevator braking structure with high safety, which has the advantages of higher safety and more stable elevator braking.

[0006] To achieve the above object, the present invention provides the following technical solution: a highly safe elevator braking structure, comprising a bottom plate, a plurality of first rotating blocks are fixedly connected to the top of the bottom plate, the inner walls of the first rotating blocks are rotatably connected to telescopic sleeves, the inner walls of two telescopic sleeves are slidably connected to limit springs, and the tops of the two limit springs are fixedly connected to sliding rods; The top ends of the two sliding rods are rotatably connected with a linkage rod, one end of the inner wall of the linkage rod is rotatably connected with a push terminal, and the bottom ends of the push terminals are rotatably connected with a transmission rod.

[0007] Through the above technical scheme, by setting the first rotating block, the telescopic sleeve rod, the sliding rod, the limit spring, the linkage rod and the pushing terminal, when the device is running, the linkage rod rotates, driving the sliding rod to slide in the telescopic sleeve rod, so that the limit rotation of the linkage rod drives the clamping rod to rotate.

[0008] Preferably, a threaded rod is threadedly penetrated at the center position of the bottom ends of the two transmission rods, and the transmission rods are fixedly connected to limiting rings, and both ends of the limiting rings are fixedly connected to fixing blocks.

[0009] Through the above technical solution, by providing a limiting ring and a fixing block, the transmission rod can be limitedly transmitted to drive the linkage rod to slide up and down.

[0010] Preferably, the bottom ends of the two fixed blocks are fixedly connected to a motor box, and the inner bottom end surfaces of the motor box are fixedly connected to a driving motor at a center position.

[0011] Through the above technical solution, by providing a motor box, the drive motor can be placed in the motor box to avoid interference from external factors.

[0012] Preferably, the output ends of the driving motors are fixedly connected to motor rods, and the ends of the motor rods away from the driving motors are fixedly connected to threaded rods.

[0013] Through the above technical solution, the driving motor drives the motor rod to rotate, thereby driving the threaded rod to rotate, so that the transmission rod can slide up and down, and the linkage rod can slide up and down through the transmission rod.

[0014] Preferably, one end of the inner wall of the two linkage rods away from the pushing terminal is rotatably connected to a pulling rod, and one end of the two pulling rods away from the linkage rod is slidably connected to a limiting rod.

[0015] Through the above technical solution, by setting the pulling rod and the limiting rod, when the device drives the linkage rod to rotate, the linkage rod can drive the pulling rod to slide in the limiting rod, so that the linkage rod can rotate within a limited position.

[0016] Preferably, one end of the inner wall of the two linkage rods is rotatably connected to a clamping rod at a lower position, the center position of the clamping rod is transmission-connected to a clamping block, and one end of the two clamping rods away from the linkage rod is rotatably connected to the base plate through a second rotating block.

[0017] Through the above technical solution, by providing a clamping block, the device can clamp the limiting roller through the clamping block.

[0018] Preferably, the inner walls of the two clamping blocks are rotatably connected to a limiting roller, and the inner walls of the limiting roller are fixedly connected to a through shaft.

[0019] Through the above technical solution, by providing the limiting roller and the through shaft, the external motor can drive the limiting roller to rotate.

[0020] Preferably, one side of the inner wall of the two clamping blocks is paved with a friction layer, and the two friction layers are made of rubber.

[0021] Through the above technical solution, by setting the friction layer to be made of rubber, the friction layer can brake the limiting roller.

[0022] Compared with the prior art, the present invention has the following beneficial effects: 1. The motor rod is driven to rotate by the driving motor, thereby driving the threaded rod to rotate, so that the transmission rod can slide up and down, thereby driving the linkage rod to slide up and down through the transmission rod, thereby driving the clamping rod and the clamping block to squeeze inward through the linkage rod, thereby braking the limit roller, and the fixation is more stable. Compared with traditional elevator brakes, its fixation is more stable and safer.

[0023] 2. Through the pulling rod and the limiting rod, the device can drive the linkage rod to rotate, and the linkage rod can drive the pulling rod to slide in the limiting rod, so that the linkage rod can be limited and rotated. The linkage rod rotates, driving the sliding rod to slide in the telescopic sleeve rod, thereby making the limiting rotation of the linkage rod drive the clamping rod to rotate. Through multi-layer limiting, the device connection is tighter and safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of a multi-angle three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the transmission mechanism structure of the present invention; Figure 4 It is a schematic diagram of the driving motor connection structure of the present invention; Figure 5 It is a schematic diagram of the telescopic sleeve rod connection structure of the present invention.

[0025] In the figure: 1. bottom plate; 2. first rotating block; 3. telescopic sleeve rod; 4. sliding rod; 5. limit spring; 6. linkage rod; 7. pushing terminal; 8. pulling rod; 9. limit rod; 10. clamping rod; 11. second rotating block; 12. clamping block; 13. limit roller; 14. through shaft; 15. transmission rod; 16. threaded rod; 17. limit ring; 18. fixed block; 19. motor rod; 20. driving motor; 21. motor box; 22. friction layer. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1:

[0027] See also Figure 1-5 The present invention provides a technical solution: a highly safe elevator braking structure, comprising a bottom plate 1, a plurality of first rotating blocks 2 are fixedly connected to the top of the bottom plate 1, the inner walls of the first rotating blocks 2 are rotatably connected to telescopic sleeves 3, the inner walls of the two telescopic sleeves 3 are slidably connected to limit springs 5, the tops of the two limit springs 5 ​​are fixedly connected to sliding rods 4, The top ends of the two sliding rods 4 are rotatably connected to the linkage rods 6 , one end of the inner wall of the linkage rods 6 is rotatably connected to the push terminals 7 , and the bottom ends of the push terminals 7 are rotatably connected to the transmission rods 15 .

[0028] In this embodiment, by setting the first rotating block 2, the telescopic sleeve rod 3, the sliding rod 4, the limit spring 5, the linkage rod 6 and the pushing terminal 7, when the device is running, the linkage rod 6 rotates, driving the sliding rod 4 to slide in the telescopic sleeve rod 3, so that the linkage rod 6 is limited and rotated, thereby driving the clamping rod 10 to rotate. Embodiment 2:

[0029] See also Figure 1-5On the basis of the first embodiment, the present invention provides a technical solution: the bottom ends of the two transmission rods 15 are threaded with threaded rods 16 at the center position, and the transmission rods 15 are fixedly connected with limit rings 17, and both ends of the limit rings 17 are fixedly connected with fixed blocks 18. By setting the limit rings 17 and the fixed blocks 18, the transmission rods 15 can be limitedly driven to drive the linkage rod 6 to slide up and down, and the bottom ends of the two fixed blocks 18 are fixedly connected with motor boxes 21, and the inner bottom end surfaces of the motor boxes 21 are fixedly connected with drive motors 20 at the center position. By setting a motor box 21, the drive motor 20 can be placed in the motor box 21 to avoid interference from external factors. The output end of the drive motor 20 is fixedly connected to the motor rod 19, and the end of the motor rod 19 away from the drive motor 20 is fixedly connected to the threaded rod 16, so that the drive motor 20 drives the motor rod 19 to rotate, thereby driving the threaded rod 16 to rotate, so that the transmission rod 15 can slide up and down, thereby driving the linkage rod 6 to slide up and down through the transmission rod 15, and the inner walls of the two linkage rods 6 are away from the push terminal 7 One end of the two pull rods 8 is rotatably connected to the pull rod 8, and the ends of the two pull rods 8 away from the linkage rod 6 are slidably connected to the limit rod 9. By setting the pull rod 8 and the limit rod 9, when the device drives the linkage rod 6 to rotate, the linkage rod 6 can drive the pull rod 8 to slide in the limit rod 9, so that the linkage rod 6 can be limited and rotated. The inner wall ends of the two linkage rods 6 are rotatably connected to the clamping rod 10 at the lower position. The center positions of the clamping rods 10 are all transmission-connected with clamping blocks 12, and the ends of the two clamping rods 10 away from the linkage rod 6 are connected to the bottom plate through the second rotating block 11. 1 is rotatably connected, and by setting the clamping block 12, the device can clamp the limiting roller 13 through the clamping block 12, the inner walls of the two clamping blocks 12 are rotatably connected with the limiting roller 13, and the inner wall of the limiting roller 13 is fixedly connected with the through shaft 14. By setting the limiting roller 13 and the through shaft 14, the external motor can drive the limiting roller 13 to rotate, and one side of the inner wall of the two clamping blocks 12 is paved with a friction layer 22, and the two friction layers 22 are made of rubber. By setting the friction layer 22 to be made of rubber, the friction layer 22 can brake the limiting roller 13.

[0030] In this embodiment, the motor rod 19 is driven to rotate by driving the motor 20, thereby driving the threaded rod 16 to rotate, so that the transmission rod 15 can slide up and down, thereby driving the linkage rod 6 to slide up and down through the transmission rod 15, thereby driving the clamping rod 10 and the clamping block 12 to squeeze inward through the linkage rod 6, thereby braking the limit roller 13, and the fixation is more stable. Compared with the traditional elevator brake, its fixation is more stable and safer. When the device drives the linkage rod 6 to rotate through the pull rod 8 and the limit rod 9, the linkage rod 6 drives the pull rod 8 to slide in the limit rod 9, so that the linkage rod 6 can be limited and rotated, and the linkage rod 6 rotates, driving the sliding rod 4 to slide in the telescopic sleeve rod 3, so that the linkage rod 6 is limited and rotated to drive the clamping rod 10 to rotate. Through multi-layer limit, the device connection is tighter and safer.

[0031] The working principle and use process of the present invention are as follows: the motor rod 19 is driven to rotate by the driving motor 20, thereby driving the threaded rod 16 to rotate, so that the transmission rod 15 can slide up and down, thereby driving the linkage rod 6 to slide up and down through the transmission rod 15, thereby driving the clamping rod 10 and the clamping block 12 to squeeze inward through the linkage rod 6, thereby braking the limit roller 13, and the fixation is more stable. Compared with the traditional elevator brake, its fixation is more stable and safer. When the device drives the linkage rod 6 to rotate through the pulling rod 8 and the limiting rod 9, the linkage rod 6 drives the pulling rod 8 to slide in the limiting rod 9, so that the linkage rod 6 can be limited and rotated, and the linkage rod 6 rotates, driving the sliding rod 4 to slide in the telescopic sleeve rod 3, so that the limiting rotation of the linkage rod 6 drives the clamping rod 10 to rotate. Through multi-layer limiting, the device connection is tighter and safer.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly safe elevator braking structure, comprising a base plate (1), characterized in that: A plurality of first rotating blocks (2) are fixedly connected to the top of the bottom plate (1); the inner walls of the first rotating blocks (2) are rotatably connected to telescopic sleeve rods (3); the inner walls of two telescopic sleeve rods (3) are slidably connected to limit springs (5); and the tops of the two limit springs (5) are fixedly connected to sliding rods (4); The top ends of the two sliding rods (4) are rotatably connected to a linkage rod (6), one end of the inner wall of the linkage rod (6) is rotatably connected to a push terminal (7), and the bottom ends of the push terminals (7) are rotatably connected to a transmission rod (15).

2. The elevator braking structure with high safety according to claim 1, characterized in that: A threaded rod (16) is threadedly penetrated at the center of the bottom ends of the two transmission rods (15), and the transmission rods (15) are fixedly connected to a limiting ring (17), and both ends of the limiting ring (17) are fixedly connected to a fixing block (18).

3. The elevator braking structure with high safety according to claim 2, characterized in that: The bottom ends of the two fixed blocks (18) are fixedly connected to a motor box (21), and the inner bottom end surfaces of the motor boxes (21) are fixedly connected to a drive motor (20) at a center position.

4. The elevator braking structure with high safety according to claim 3, characterized in that: The output ends of the drive motors (20) are fixedly connected to the motor rods (19), and the ends of the motor rods (19) away from the drive motors (20) are fixedly connected to the threaded rods (16).

5. The elevator braking structure with high safety according to claim 1, characterized in that: The inner walls of the two linkage rods (6) are rotatably connected to one end of the push terminal (7) with a pull rod (8), and the inner walls of the two pull rods (8) are slidably connected to a limit rod (9) with one end of the pull rods (8) away from the linkage rod (6).

6. The elevator braking structure with high safety according to claim 1, characterized in that: One end of the inner wall of the two linkage rods (6) is rotatably connected to a clamping rod (10) at a lower position, and the center position of the clamping rod (10) is transmission-connected to a clamping block (12), and one end of the two clamping rods (10) away from the linkage rod (6) is rotatably connected to the bottom plate (1) via a second rotating block (11).

7. The elevator braking structure with high safety according to claim 6, characterized in that: The inner walls of the two clamping blocks (12) are rotatably connected to a limiting roller (13), and the inner walls of the limiting roller (13) are fixedly connected to a through shaft (14).

8. The elevator braking structure with high safety according to claim 6, characterized in that: One side of the inner wall of the two clamping blocks (12) is provided with a friction layer (22), and the two friction layers (22) are both made of rubber.

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