Elevator brake

Abstract

The utility model discloses an elevator brake, which belongs to the technical field of elevator parts and comprises a brake body, the upper surface of the brake body is fixedly connected with a connecting block, the upper surface of the connecting block is provided with a groove, a detector body is arranged above the connecting block, and the bottom surface of the detector body is fixedly connected with a clamping block. The clamping block is located in the groove, two limiting rods are slidably connected to the interior of the connecting block, the ends, close to each other, of the two limiting rods extend into the clamping block, the outer surface of each limiting rod is fixedly connected with a stress ring, and a detection wheel is rotationally connected to the interior of the brake body. According to the elevator brake, through cooperation of a plurality of assemblies, the capability of detecting the running state of the brake is achieved, the problem that casualties are aggravated during elevator falling due to aging and damage of the brake during long-time use is solved, and the effect of improving the applicability of an elevator brake device is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator parts, and in particular relates to an elevator brake. Background Art

[0002] The brake is an important component to ensure the safe and normal operation of the elevator. Under normal circumstances, after the elevator traction machine stops rotating, the stationary state of the car is maintained by the brake. If there is a sudden power outage or the electrical safety device is suddenly disconnected during the operation of the elevator, the speed reduction and stop of the elevator are completely dependent on the action of the brake.

[0003] The existing utility model with authorization announcement number CN205838248U discloses an elevator car system and its elevator car fall automatic detection and braking device, including a speed measuring rack, a brake housing, a speed measuring gear, a transition speed regulating gear, a generator, a control circuit board and a brake assembly; the speed measuring rack is fixed on the end face of the elevator car guide rail.

[0004] The above technical solution can not only accurately sense the elevator's running speed, but also does not require an external power supply and is extremely reliable. However, the above technical solution cannot detect the operating status of the brake. When used for a long time, the brake is prone to damage due to aging, and it is difficult for the operator to detect it, which increases the possibility of casualties when falling from the ladder and reduces the applicability of the elevator braking device.

[0005] Therefore, we propose an elevator brake to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to solve the problem in the prior art that the brake cannot be detected, and to propose an elevator brake.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] An elevator brake comprises a brake body, the upper surface of the brake body is fixedly connected to a connecting block, the upper surface of the connecting block is provided with a groove, a detector body is arranged above the connecting block, the bottom surface of the detector body is fixedly connected to a clamping block, the clamping block is located inside the groove, the interior of the connecting block is slidingly connected to two limit rods, the ends of the two limit rods close to each other extend to the interior of the clamping block, the outer surface of each limit rod is fixedly connected to a force ring, the interior of the brake body is rotatably connected to a detection wheel, the upper surface of the brake body is fixedly connected to an auxiliary block, the interior of the auxiliary block is rotatably connected to a threaded rod, the outer surface of the threaded rod is threadedly connected to an auxiliary wheel, and the auxiliary wheel is slidably connected to the interior of the auxiliary block.

[0009] Preferably, ends of the two limit rods that are away from each other are fixedly connected to a stopper, and sides of the two stoppers that are away from each other are fixedly connected to an auxiliary handle.

[0010] Preferably, a reinforcement ring is fixedly connected to the outer surface of each auxiliary handle, and the ends of the two groups of reinforcement rings that are close to each other are fixedly connected to the side surfaces of the stop blocks that are away from each other.

[0011] Preferably, a return spring is provided on the outer surface of each limit rod, and the ends of the two return springs that are away from each other are fixedly connected to the inner wall of the connecting block, and the ends of the two return springs that are close to each other are fixedly connected to the ends of the force ring that are away from each other.

[0012] Preferably, the front surface of the auxiliary block is fixedly connected to a fixing block, and the bottom surface of the fixing block is fixedly connected to the upper surface of the detector body.

[0013] Preferably, an auxiliary bearing is sleeved on the outer surface of the threaded rod, and the auxiliary bearing is embedded in the interior of the auxiliary block.

[0014] Preferably, the right end of the threaded rod is fixedly connected to a turntable, and the outer surface of the turntable is fixedly connected to a rotating handle.

[0015] Preferably, a sliding block is fixedly connected to the front of the auxiliary wheel, and the sliding block is slidably connected to the inside of the auxiliary block.

[0016] In summary, the technical effects and advantages of the utility model are:

[0017] By providing a brake body, a connecting block, a detector body, a clamping block, a limiting rod, a force ring, a detection wheel, an auxiliary block, a threaded rod and an auxiliary wheel, the brake body can be used to brake the elevator, and the detection wheel and the detector body can be used to detect the moving speed of the steel cable, and then the operating status of the braking force body can be detected. At the same time, the clamping block and the detector body are locked in the groove by relying on the limiting rod, and the limiting relationship is released by pulling the limiting block, thereby realizing the ability to quickly load and unload the detector body, and then the rotation of the threaded rod is used to drive the auxiliary wheel to move in the auxiliary block, and the auxiliary wheel is used to increase the contact and force area between the steel cable and the detection wheel, thereby avoiding slipping of the detection wheel and the steel cable, further improving the accuracy of the detection, and achieving the ability to detect the operating status of the brake, solving the problem of aging and damage of the brake during long-term use, and then increasing casualties when falling from the ladder, and playing a role in increasing the applicability of the elevator braking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural diagram of the brake body of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the groove of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the connecting block of the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the auxiliary block of the utility model.

[0022] In the figure: 1. Brake body; 2. Connecting block; 3. Groove; 4. Detector body; 5. Clamping block; 6. Limit rod; 7. Force ring; 8. Detection wheel; 9. Auxiliary block; 10. Threaded rod; 11. Auxiliary wheel; 12. Stop block; 13. Auxiliary handle; 14. Reinforcement ring; 15. Return spring; 16. Fixing block; 17. Auxiliary bearing; 18. Sliding block; 19. Turntable; 20. Turning handle. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Reference Figures 1-4 The present embodiment provides an elevator brake, which includes a brake body 1, a connecting block 2 fixedly connected to the upper surface of the brake body 1, a groove 3 being provided on the upper surface of the connecting block 2, a detector body 4 being provided above the connecting block 2, a clamping block 5 being fixedly connected to the bottom surface of the detector body 4, the clamping block 5 being located inside the groove 3, two limit rods 6 being slidably connected to the inside of the connecting block 2, and a stopper 12 being fixedly connected to the ends of the two limit rods 6 away from each other, and an auxiliary handle 13 being fixedly connected to the side surfaces of the two stoppers 12 away from each other. By cooperating with the stopper 12 and the auxiliary handle 13, a convenient force application position can be provided for the limit rod 6, thereby increasing the convenience when pulling the limit rod 6 and improving the convenience of the device.

[0025] The outer surface of each auxiliary handle 13 is fixedly connected to a reinforcement ring 14, and the ends of the two sets of reinforcement rings 14 that are close to each other are fixedly connected to the side of the block 12 that is away from each other. The reinforcement ring 14 can increase the fixed connection area between the auxiliary handle 13 and the block 12, increase the firmness of the connection between the two parties, prevent the connection from loosening after long-term use, and increase the durability of the device.

[0026] The ends of the two limit rods 6 that are close to each other extend to the interior of the clamping block 5, and the outer surface of each limit rod 6 is fixedly connected to the force ring 7, and the outer surface of each limit rod 6 is provided with a return spring 15, and the ends of the two return springs 15 that are away from each other are fixedly connected to the inner side wall of the connecting block 2, and the ends of the two return springs 15 that are close to each other are fixedly connected to the ends of the force ring 7 that are away from each other. The return spring 15 can use its own telescopic ability to continuously apply pressure to the limit rod 6, so that the limit rod 6 has the ability to automatically reset, which increases the convenience when limiting the clamping block 5, and also improves the firmness of the limit rod 6 when limiting.

[0027] The internal rotation of the brake body 1 is connected to the detection wheel 8, the upper surface of the brake body 1 is fixedly connected to the auxiliary block 9, the front of the auxiliary block 9 is fixedly connected to the firm block 16, the bottom surface of the firm block 16 is fixedly connected to the upper surface of the detector body 4, and the firm block 16 can increase the fixed connection area between the auxiliary block 9 and the detector body 4, thereby making the connection between the two parties more secure, preventing the possibility of breakage at the connection after long-term use, and increasing the firmness of the device.

[0028] The auxiliary block 9 is internally rotatably connected to a threaded rod 10, and an auxiliary bearing 17 is sleeved on the outer surface of the threaded rod 10. The auxiliary bearing 17 is embedded in the interior of the auxiliary block 9. The auxiliary bearing 17 can reduce the friction generated by the threaded rod 10 during rotation, making the threaded rod 10 more sensitive during rotation. At the same time, it can also reduce the wear rate of the threaded rod 10 and increase the durability of the threaded rod 10.

[0029] The outer surface of the threaded rod 10 is threadedly connected to an auxiliary wheel 11, the right end of the threaded rod 10 is fixedly connected to a turntable 19, and the outer surface of the turntable 19 is fixedly connected to a rotating handle 20. Through the cooperation of the turntable 19 and the rotating handle 20, an effective force position can be provided for the threaded rod 10, which increases the convenience when rotating the threaded rod 10 and improves the convenience during use.

[0030] The auxiliary wheel 11 is slidably connected to the inside of the auxiliary block 9. A sliding block 18 is fixedly connected to the front of the auxiliary wheel 11. The sliding block 18 is slidably connected to the inside of the auxiliary block 9. The sliding block 18 can move simultaneously with the auxiliary wheel 11 and use the friction force generated by itself on the auxiliary block 9 during movement to improve the stability of the auxiliary wheel 11 during movement, thereby increasing the stability of the device.

[0031] The working principle of the present invention is as follows: when in use, first connect the brake body 1 and the detector body 4 to the power supply, and install the brake body 1 in the appropriate position of the traction wheel, then insert the clamping block 5 into the groove 3, and limit it through the limit rod 6, then pass the steel cable through the detection wheel 8, and turn the rotating handle 20, so that the turntable 19 drives the threaded rod 10 to rotate, the auxiliary bearing 17 can reduce the sensitivity of the threaded rod 10 when rotating, so that the auxiliary wheel 11 moves toward the direction of the steel cable and applies pressure to the steel cable, thereby increasing the contact area between the detection wheel 8 and the steel cable. When a fall occurs, the traction wheel is locked by the elevator brake, thereby avoiding the occurrence of accidents. At the same time, the elevator is running During the process, the detector body 4 can continuously detect the moving speed of the steel cable through the detection wheel 8, and send a signal to the staff through the transmission module inside the detector body 4 when an abnormality is detected in the moving speed of the steel cable, so that the brake body 1 can be repaired in time, and the ability to detect the brake body 1 is realized, thereby avoiding the occurrence of falling ladder accidents and effectively improving the safety of the elevator during operation. When the detector body 4 needs to be disassembled, the auxiliary handle 13 is pulled to drive the block 12 and the limit rod 6 to move and move them out of the clamping block 5, and then the clamping block 5 and the detector body 4 can be taken out from the groove 3, thereby further improving the convenience of using the device.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An elevator brake, comprising a brake body (1), characterized in that: The upper surface of the brake body (1) is fixedly connected to a connecting block (2), and a groove (3) is provided on the upper surface of the connecting block (2). A detector body (4) is arranged above the connecting block (2), and the bottom surface of the detector body (4) is fixedly connected to a clamping block (5), and the clamping block (5) is located inside the groove (3). The interior of the connecting block (2) is slidably connected to two limit rods (6), and the ends of the two limit rods (6) that are close to each other extend to the interior of the clamping block (5). The outer surface of each limit rod (6) is fixedly connected to a force ring (7), and the interior of the brake body (1) is rotatably connected to a detection wheel (8). The upper surface of the brake body (1) is fixedly connected to an auxiliary block (9), and the interior of the auxiliary block (9) is rotatably connected to a threaded rod (10). The outer surface of the threaded rod (10) is threadedly connected to an auxiliary wheel (11), and the auxiliary wheel (11) is slidably connected to the interior of the auxiliary block (9).

2. An elevator brake according to claim 1, characterized in that: The ends of the two limit rods (6) that are away from each other are fixedly connected to a stopper (12), and the side surfaces of the two stoppers (12) that are away from each other are fixedly connected to an auxiliary handle (13).

3. An elevator brake according to claim 2, characterized in that: The outer surface of each auxiliary handle (13) is fixedly connected to a reinforcement ring (14), and the ends of the two groups of reinforcement rings (14) that are close to each other are fixedly connected to the side surfaces of the stopper (12) that are away from each other.

4. An elevator brake according to claim 1, characterized in that: A return spring (15) is provided on the outer surface of each limiting rod (6); the ends of the two return springs (15) that are away from each other are fixedly connected to the inner side wall of the connecting block (2); and the ends of the two return springs (15) that are close to each other are fixedly connected to the ends of the force ring (7) that are away from each other.

5. The elevator brake according to claim 1, characterized in that: The front surface of the auxiliary block (9) is fixedly connected to a firm block (16), and the bottom surface of the firm block (16) is fixedly connected to the upper surface of the detector body (4).

6. The elevator brake according to claim 1, characterized in that: An auxiliary bearing (17) is sleeved on the outer surface of the threaded rod (10), and the auxiliary bearing (17) is embedded in the interior of the auxiliary block (9).

7. The elevator brake according to claim 1, characterized in that: The right end of the threaded rod (10) is fixedly connected to a turntable (19), and the outer surface of the turntable (19) is fixedly connected to a rotating handle (20).

8. The elevator brake according to claim 1, characterized in that: The front side of the auxiliary wheel (11) is fixedly connected with a sliding block (18), and the sliding block (18) is slidably connected to the inside of the auxiliary block (9).

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