Progressive elevator safety brake

Abstract

The utility model provides a progressive elevator safety brake which comprises a machine frame, a brake assembly is arranged on the top of the machine frame, and an adjusting assembly is arranged on the inner side of the brake assembly. The brake assembly comprises a traction motor arranged on the rear side of the top of the rack, a traction wheel is arranged on the front face of the traction motor, and rotating frames are arranged on the left side and the right side of the front side of the top of the rack correspondingly. According to the progressive elevator safety brake, the rotary handle rotates to drive the rotary handle to move towards one side of the tile base, then the brake tiles are driven to move towards one side close to a traction wheel, the stroke length of the brake frames on the two sides is prevented from being increased, and when the spring is squeezed for multiple times and the elastic force is reduced, the adjusting bolt is rotated inwards, and the brake tiles are adjusted. When the electromagnetic valve is powered off, due to the fact that the length of the spring is shorter than that of the spring before adjustment, the spring can meet the rebound stroke distance, replacement of the spring is avoided, and the service life of the spring is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of elevators, in particular to a progressive elevator safety brake. Background Art

[0002] Elevators are widely used in daily life and across various fields. In residential and commercial buildings, elevators enhance the competitiveness of buildings and the quality of living and working environments. In hospitals, elevators provide convenient transportation for patients, doctors, and administrators. In airports, elevators serve not only as a means of transportation but also as a reflection of the city's image. Elevators are also widely used in factories, shopping malls, office buildings, subway stations, and other places.

[0003] With the acceleration of urbanization and the increasing number of high-rise buildings, elevators have become an indispensable part of people's daily lives. The safety, comfort, and convenience of elevators directly impact people's quality of life. Frequent elevator malfunctions or accidents can cause significant inconvenience and distress. Therefore, strengthening elevator safety management and improving elevator safety and comfort are crucial for enhancing people's quality of life.

[0004] The elevator brake is an important component of the elevator safety system and plays an important role in ensuring the safe operation of the elevator and the safety of passengers. In daily use, the maintenance and care of the elevator brake should be strengthened to ensure that it is always in good working condition to ensure the safe operation of the elevator. Application number: CN202322747358.8 discloses an elevator safety brake that can regularly add lubricant between the permanent magnet housing and the moving iron core body to ensure that the moving iron core body can move back and forth normally, avoid jamming, and improve safety performance. However, when the device is in use, due to the inertia of the traction sheave, the brake pads will gradually wear and become thinner during long-term braking. The stroke length of the armature will increase when braking again. Secondly, after the brake spring is opened and closed multiple times, the deformation rebound distance may also be shortened, and the brake pads and springs need to be replaced to better brake. The device cannot automatically adjust the spring pressure and the distance between the pads and the traction sheave, resulting in high replacement costs.

[0005] Therefore, it is necessary to provide a progressive elevator safety brake to solve the above technical problems. Summary of the Invention

[0006] The utility model provides a progressive elevator safety brake, which solves the problem in the related art that some existing elevator brakes are inconvenient to adjust brake shoes and springs when in use, resulting in time-consuming and costly replacement.

[0007] In order to solve the above technical problems, the utility model provides a progressive elevator safety brake, comprising: a frame, a brake assembly is provided on the top of the frame, and an adjustment assembly is provided inside the brake assembly;

[0008] The brake assembly includes a traction motor arranged at the rear side of the top of the frame, a traction wheel is arranged on the front of the traction motor, and a rotating frame is arranged on the left and right sides of the front side of the top of the frame, and a brake frame is rotatably arranged on the inner sides of the two rotating frames;

[0009] The adjustment component includes a tile seat arranged on the inner side of the two brake frames, a sliding block is arranged on the inner side of the tile seat so as to slide left and right, and a brake tile is arranged on the right side of the sliding block.

[0010] Preferably, a screw is rotatably provided on the left side of the sliding block, and the right end of the screw passes through the right side of the tile seat, the inner side of the brake frame and extends to the outer side of the brake frame in sequence. A rotating handle is provided on the end of the screw away from the tile seat.

[0011] Preferably, the brake assembly further includes a solenoid valve disposed on the top of the brake frame.

[0012] Preferably, a placement box is provided on the top of the traction motor and on the top of the two opposite sides of the brake frames, and the inner sides of the two brake frames are rotatably connected with adjustment rods, and the opposite ends of the two adjustment rods respectively pass through the left and right sides of the placement box and extend into the interior thereof.

[0013] Preferably, springs are provided on the left and right sides of the inner wall of the placement box, respectively corresponding to the peripheral side surfaces of the two adjusting rods, and opposite ends of the two springs are respectively fixedly connected to the ends close to the two adjusting rods.

[0014] Preferably, the separated ends of the two adjusting rods pass through the inner sides of the two brake frames and extend to the outer sides thereof, and the peripheral side surfaces of the two adjusting rods and the outer sides of the two brake frames are threadedly connected with adjusting bolts.

[0015] Compared with related technologies, the progressive elevator safety brake provided by the present invention has the following beneficial effects:

[0016] The utility model provides a progressive elevator safety brake, which drives itself to move toward the tile seat side by rotating the handle, and then drives the brake tile to move toward the side close to the traction wheel, thereby avoiding an increase in the stroke length of the brake frames on both sides. When the spring is squeezed multiple times and the elastic force decreases, the spring is further compressed by rotating the adjusting bolt inward. When the solenoid valve is powered off, the spring is shorter than before adjustment, so that the spring can meet the rebound stroke distance, thereby avoiding the need to replace the spring and extending the service life of the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural schematic diagram of a preferred embodiment of a progressive elevator safety brake provided by the utility model;

[0018] Figure 2 for Figure 1 The schematic diagram of the structure of the left view of the brake frame shown;

[0019] Figure 3 for Figure 1 A schematic structural diagram of a front view of the structure shown;

[0020] Figure 4 for Figure 3 Schematic diagram of the tile seat structure shown.

[0021] Numbers in the figure: 1. Frame; 2. Brake assembly; 21. Traction motor; 22. Traction wheel; 23. Rotating frame; 24. Brake frame; 25. Solenoid valve; 3. Adjustment assembly; 31. Tile seat; 32. Sliding block; 33. Brake tile; 34. Screw; 35. Turning handle; 36. Placement box; 37. Adjustment rod; 38. Spring; 39. Adjustment bolt. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0023] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 ,in Figure 1 A structural schematic diagram of a preferred embodiment of a progressive elevator safety brake provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the structure of the left view of the brake frame shown; Figure 3 for Figure 1 A schematic structural diagram of a front view of the structure shown; Figure 4 for Figure 3A schematic diagram of the tile seat structure is shown. A progressive elevator safety brake comprises: a frame 1, a brake assembly 2 is disposed on the top of the frame 1, and an adjustment assembly 3 is disposed inside the brake assembly 2;

[0024] The brake assembly 2 includes a traction motor 21 disposed on the rear side of the top of the frame 1. A traction sheave 22 is disposed on the front of the traction motor 21. A rotating frame 23 is disposed on the left and right sides of the front of the top of the frame 1. A brake frame 24 is rotatably disposed on the inner sides of the two rotating frames 23.

[0025] During normal use, the solenoid valve 25 is energized to cause the two brake frames 24 to rotate outward, thereby allowing the traction wheel 22 to rotate. When braking is required, the solenoid valve 25 is de-energized, and under the action of the two springs 38, the brake frames 24 rotate relative to each other, and the tiles are attached to the traction wheel 22 to perform braking.

[0026] The adjustment component 3 includes a tile seat 31 arranged on the inner side of the two brake frames 24. A sliding block 32 is provided on the inner side of the tile seat 31 so as to slide left and right. A brake tile 33 is provided on the right side of the sliding block 32.

[0027] A screw rod 34 is rotatably provided on the left side of the sliding block 32. The right end of the screw rod 34 passes through the right side of the tile seat 31, the inner side of the brake frame 24 and extends to the outer side of the brake frame 24. A rotating handle 35 is provided on the end of the screw rod 34 away from the tile seat 31.

[0028] When the brake pad 33 is worn, the handle 35 is rotated to drive it to move toward the pad seat 31, thereby driving the brake pad 33 to move toward the side close to the traction wheel 22, thereby avoiding an increase in the stroke length of the brake frames 24 on both sides.

[0029] The brake assembly 2 further includes a solenoid valve 25 disposed on the top of the brake frame 24 .

[0030] A placement box 36 is provided at the top of the traction motor 21 and on the top of the opposite side of the two brake frames 24. The inner sides of the two brake frames 24 are rotatably connected with adjustment rods 37 through threads. The opposite ends of the two adjustment rods 37 respectively pass through the left and right sides of the placement box 36 and extend into the interior thereof.

[0031] Springs 38 are provided on the left and right sides of the inner wall of the placement box 36 corresponding to the peripheral side surfaces of the two adjustment rods 37 , and opposite ends of the two springs 38 are fixedly connected to the ends close to the two adjustment rods 37 .

[0032] When the spring 38 is squeezed multiple times and its elastic force decreases, the spring 38 is further compressed by turning the adjusting bolt 39 inward. Then, when the solenoid valve 25 is powered off, the spring 38 is shorter than before adjustment, so that the spring 38 can meet the rebound stroke distance, avoiding the need to replace the spring 38 and extending the service life of the spring 38.

[0033] The separated ends of the two adjusting rods 37 pass through the inner sides of the two brake frames 24 and extend to the outer sides thereof. The peripheral side surfaces of the two adjusting rods 37 and the outer sides of the two brake frames 24 are threadedly connected with adjusting bolts 39 .

[0034] The working principle of a progressive elevator safety brake provided by the utility model is as follows:

[0035] Step 1: During normal use, the solenoid valve 25 is energized to cause the two brake frames 24 to rotate outward, thereby allowing the traction sheave 22 to rotate. When braking is required, the solenoid valve 25 is de-energized, and the brake frames 24 rotate relative to each other under the action of the two springs 38, causing the tiles to adhere to the traction sheave 22, thereby braking.

[0036] Step 2: When the brake shoe 33 is worn, the handle 35 is rotated to drive it to move toward the shoe seat 31, and then drive the brake shoe 33 to move toward the side close to the traction wheel 22, thereby avoiding the increase in the stroke length of the brake frames 24 on both sides. When the spring 38 is squeezed multiple times and the elastic force decreases, the spring 38 is further compressed by rotating the adjusting bolt 39 inward. When the solenoid valve 25 is powered off, since the spring 38 is shorter than before adjustment, the spring 38 can meet the rebound stroke distance, avoiding the need to replace the spring 38 and extending the service life of the spring 38.

[0037] Compared with related technologies, the progressive elevator safety brake provided by the present invention has the following beneficial effects:

[0038] By rotating the handle 35, it drives itself to move toward the tile seat 31, and then drives the brake tile 33 to move toward the side close to the traction wheel 22, thereby avoiding the increase in the stroke length of the brake frames 24 on both sides. When the spring 38 is squeezed multiple times and the elastic force decreases, the spring 38 is further compressed by rotating the adjusting bolt 39 inward. When the solenoid valve 25 is powered off, since the spring 38 is shorter than before adjustment, the spring 38 can meet the rebound stroke distance, avoiding the replacement of the spring 38 and extending the service life of the spring 38.

[0039] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A progressive elevator safety brake, characterized in that: include: A frame (1), wherein a brake assembly (2) is provided on the top of the frame (1), and an adjustment assembly (3) is provided on the inner side of the brake assembly (2); The brake assembly (2) includes a traction motor (21) arranged on the rear side of the top of the frame (1), a traction wheel (22) is arranged on the front of the traction motor (21), and a rotating frame (23) is arranged on the left and right sides of the front side of the top of the frame (1), and a brake frame (24) is rotatably arranged on the inner sides of the two rotating frames (23); The adjustment assembly (3) includes a tile seat (31) arranged inside the two brake frames (24), a sliding block (32) is arranged on the inner side of the tile seat (31) so as to slide left and right, and a brake tile (33) is arranged on the right side of the sliding block (32).

2. A progressive elevator safety brake according to claim 1, characterized in that: A screw rod (34) is rotatably provided on the left side of the sliding block (32), and the right end of the screw rod (34) sequentially passes through the right side of the tile seat (31), the inner side of the brake frame (24), and extends to the outer side of the brake frame (24). A rotating handle (35) is provided on the end of the screw rod (34) away from the tile seat (31).

3. A progressive elevator safety brake according to claim 1, characterized in that: The brake assembly (2) further includes a solenoid valve (25) arranged on the top of the brake frame (24).

4. A progressive elevator safety brake according to claim 1, characterized in that: A placement box (36) is provided on the top of the traction motor (21) and on the top of the opposite side of the two brake frames (24). The inner sides of the two brake frames (24) are rotatably connected to an adjustment rod (37) by a thread. The opposite ends of the two adjustment rods (37) respectively pass through the left and right sides of the placement box (36) and extend into the interior thereof.

5. A progressive elevator safety brake according to claim 4, characterized in that: Springs (38) are provided on the left and right sides of the inner wall of the placement box (36) respectively corresponding to the peripheral side surfaces of the two adjustment rods (37), and the opposite ends of the two springs (38) are fixedly connected to the ends close to the two adjustment rods (37).

6. A progressive elevator safety brake according to claim 4, characterized in that: The separated ends of the two adjusting rods (37) pass through the inner sides of the two brake frames (24) and extend to the outer sides thereof. The peripheral side surfaces of the two adjusting rods (37) and the outer sides of the two brake frames (24) are threadedly connected with adjusting bolts (39).

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