Top rushing protection mechanism for elevator

By designing an elevator over-impact protection mechanism that includes a buffer pad and a locking block, the problems of the inability to fix the elevator car and the difficulty of maintenance in the existing technology are solved, thus realizing safe buffering and convenient maintenance of the elevator.

CN223920816UActive Publication Date: 2026-02-17SHENYANG CHAOTONG ELEVATOR TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520710523.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-02-17
Estimated Expiration
2035-04-15

AI Technical Summary

Technical Problem

Existing elevator anti-overhead devices cannot secure the car after overhead collision, making maintenance difficult. Furthermore, the car may fall rapidly in the event of motor failure or wire rope breakage, posing a safety hazard.

Method used

An over-impact protection mechanism was designed, comprising a mounting base, a base, a slide, a buffer pad, a locking block, and an air spring. The buffer pad and the locking block work together to achieve initial buffering and locking of the car, preventing it from falling. The access panel facilitates unlocking and maintenance.

Benefits of technology

It effectively prevents the elevator car from falling after hitting the top, improving safety and simplifying the maintenance process, ensuring that the elevator can be restored to normal operation.

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Abstract

The utility model relates to the technical field of elevators, in particular to a top rushing protection mechanism for an elevator, which comprises a mounting seat, a base is fixed at the bottom end of the mounting seat, a sliding seat is arranged in the base, the bottom end of the sliding seat penetrates through the base, a lift car is arranged below the sliding seat, and two lifting ropes are fixed at the top end of the lift car. The mounting base, the base and the sliding base are each provided with two through grooves allowing a lifting rope to penetrate through, a support and four first buffer pads arranged in a rectangular array are fixed to the top end of the lift car, two sliding grooves are formed in the support, clamping blocks are arranged in the two sliding grooves, the opposite ends of the two clamping blocks extend out of the support, a plurality of guide columns are fixed to the opposite side walls of the two clamping blocks, and the guide columns are arranged in the sliding grooves. Each guide column is sleeved with a reset spring, a groove matched with the support is formed in the bottom end of the sliding base, two clamping grooves matched with the clamping blocks are formed in the sliding base, and a plurality of air springs are fixed to the top end of the sliding base. The elevator car can be protected in a buffering mode, and locking of the elevator car is facilitated.
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Description

TECHNICAL FIELD

[0001] The utility model relates to elevator technical field, concretely relates to a kind of for the protection mechanism of top of elevator. BACKGROUND

[0002] Elevator is a kind of vertical transport pedestrian or cargo transport equipment, elevator top or shaft is usually equipped with elevator top protection device, after searching, the patent with the name "a kind of anti-top device and elevator" with the authorization announcement No.CN219156223U, including elevator main body, the upper end of elevator main body is fixedly connected with four anti-top components, anti-top component includes triangular pedestal, the upper surface of triangular pedestal is equipped with three slide rail grooves, the upper end of triangular pedestal is fixedly connected with hydraulic buffer, the buffer end of hydraulic buffer is fixedly connected with connecting block, the outer circumferential surface of connecting block is rotatably connected with three linkage rods, the lower end of three linkage rods is rotatably connected with roller, roller and slide rail groove correspond to each other.The anti-top device and elevator pass through triangular pedestal, hydraulic buffer, connecting block, linkage rod, roller, rod body, link block, spring, hose and mouth, solve the buffer direction of the existing elevator anti-top device, if the speed of top is faster, impact force is too large, prone to device damage, when elevator is trapped in elevator due to fault, personnel is prone to asphyxiation problem.But the anti-top device and elevator when actual use, the car after top cannot be fixed, it is not conducive to the car after top maintenance, if the motor after top breaks down or car top steel wire rope, car will fall rapidly, danger occurs. CONTENT OF UTILITY MODEL

[0003] In view of the problems in the prior art, the utility model provides a kind of for the protection mechanism of top of elevator.

[0004] The utility model solves the technical scheme that it adopts for the protection mechanism of top of elevator, including mounting seat, the bottom of mounting seat is fixed with base, the base is equipped with sliding seat, the bottom of sliding seat penetrates base, the lower portion of sliding seat is equipped with car, the top of car is fixed with two lifting ropes, the mounting seat, base and sliding seat are all equipped with two through slot for lifting rope, the top of car is fixed with support and four first buffer pads of rectangular array arrangement, the support is equipped with two sliding grooves, two sliding grooves are all equipped with clamping block, the end of two clamping blocks opposite each other all extends to the outside of support, the side wall of two clamping blocks opposite each other is all fixed with multiple guide posts, each guide post is all sheathed with reset spring, the bottom of sliding seat is equipped with recess that is adapted to support, the sliding seat is equipped with two clamping slots that are adapted to clamping block, the top of sliding seat is fixed with multiple air springs.

[0005] By adopting the above technical solution, the car moves upward, and the first buffer pad and the support move upward accordingly. The first buffer pad collides with the slide to achieve initial buffering. The slide moves upward and compresses the air spring for further buffering. At the same time, the two locking blocks touch the slide. The two locking blocks move towards each other first. After the two locking blocks are at the same height as the two locking slots in the slide, the return spring pushes the locking blocks to reset. The two locking blocks are inserted into the two locking slots in the slide, which can prevent the support and the car from falling downward after hitting the top.

[0006] Specifically, two second buffer pads are fixed inside the base.

[0007] By adopting the above technical solution, the setting of the second buffer pad improves the protective effect.

[0008] Specifically, each of the two opposing sidewalls of the two blocks is fixed with a lever, and a first inspection port is provided on one side of the slide.

[0009] By adopting the above technical solution, after the elevator maintenance is restored to normal, the worker puts his hand or a tool into the first maintenance port, moves the two levers towards each other, moves the two locking blocks towards each other, and the two locking blocks disengage from the two slots in the slide block, thus releasing the lock on the car.

[0010] Specifically, a second inspection port is provided on one side of the base.

[0011] By adopting the above technical solution, the second inspection port facilitates the maintenance of the air spring.

[0012] Specifically, the mounting base is provided with multiple mounting holes.

[0013] By adopting the above technical solution, the installation hole is designed to facilitate the use of bolts to fix the mounting seat in the wellbore.

[0014] The beneficial effects of this utility model are:

[0015] (1) The present invention describes a top-impact protection mechanism for elevators. When the car moves upward, the first buffer pad and the support move upward accordingly. The first buffer pad collides with the slide to achieve initial buffering. The slide moves upward and compresses the air spring for further buffering. At the same time, the two locking blocks touch the slide. The two locking blocks move towards each other first. After the two locking blocks are at the same height as the two locking slots in the slide, the reset spring pushes the locking blocks to reset. The two locking blocks are inserted into the two locking slots in the slide, which can prevent the support and the car from falling downward after hitting the top.

[0016] (2) The impact protection mechanism for elevator described in this utility model is such that after the elevator is repaired and restored to normal, the worker puts his hand or a tool into the first inspection port and moves the two levers toward each other. The two locking blocks move toward each other and the two locking blocks disengage from the two slots in the slide block, thereby releasing the lock on the car. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0021] In the diagram: 1. Mounting base; 2. Lifting rope; 3. Base; 30. Second buffer pad; 4. Slide; 5. First buffer pad; 6. Car; 7. Air spring; 8. Locking block; 9. Support; 10. Guide column; 11. Return spring; 12. Paddle plate. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] To achieve buffer protection and facilitate locking of the car 6, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3As shown, the present invention discloses an elevator over-impact protection mechanism, comprising a mounting base 1, a base 3 fixed to the bottom of the mounting base 1 by bolts, a slide 4 disposed within the base 3, the bottom of the slide 4 penetrating the base 3, a car 6 disposed below the slide 4, and two suspension ropes 2 fixed to the top of the car 6. The suspension ropes 2 cooperate with a motor to realize the lifting and lowering of the car 6. This is prior art and will not be described in detail. The mounting base 1, the base 3, and the slide 4 are each provided with two through slots for the suspension ropes 2 to pass through. The top of the car 6 is fixed to the base 3 by bolts. A support 9 and four rectangular arrays of first buffer pads 5 are fixedly arranged. The support 9 has two sliding grooves, each with a locking block 8. The opposing ends of the two locking blocks 8 extend outside the support 9. Multiple guide posts 10 are welded and fixed to the opposing sidewalls of the two locking blocks 8. Each guide post 10 is fitted with a return spring 11. The bottom end of the slide 4 has a groove that matches the support 9. The slide 4 has two locking slots that match the locking blocks 8. Multiple air springs 7 are fixed to the top of the slide 4 by bolts (existing technology, the specific principle is not described in detail).

[0024] During use, the car 6 moves upward, and the first buffer pad 5 and the support 9 move upward accordingly. The first buffer pad 5 collides with the slide 4 to achieve initial buffering. The slide 4 moves upward and compresses the air spring 7 for further buffering. At the same time, the two locking blocks 8 touch the slide 4. The two locking blocks 8 move towards each other first. As the support 9 moves upward, the two locking blocks 8 are at the same height as the two locking slots in the slide 4. Then the return spring 11 pushes the locking blocks 8 to reset. The two locking blocks 8 are inserted into the two locking slots in the slide 4, which can prevent the support 9 and the car 6 from falling downward after hitting the top.

[0025] To improve the protective effect, for example, such as Figure 2 As shown, two second buffer pads 30 are fixed inside the base 3 by adhesive.

[0026] In use, the slide 4 moves up first and then down, and the two second buffer pads 30 come into contact with the slide 4 to achieve buffer protection.

[0027] To facilitate the reset of card block 8, for example, as follows: Figure 2 , Figure 3 As shown, the two opposing sidewalls of the two card blocks 8 are welded and fixed with a lever plate 12, and a first inspection port is provided on one side of the slide block 4.

[0028] When in use, after the elevator has been repaired and restored to normal, the worker puts his hand or a tool into the first inspection port and moves the two levers 12 toward each other. The two locking blocks 8 move toward each other and disengage from the two slots in the slide block 4, thus releasing the lock on the car 6.

[0029] To facilitate the maintenance of the air spring 7, for example, such as Figure 1As shown, a second inspection port is provided on one side of the base 3.

[0030] To facilitate the installation of mounting base 1, for example, as shown below. Figure 1 As shown, the mounting base 1 has multiple mounting holes.

[0031] In use, the mounting base 1 is fixed in the shaft with bolts. When the car 6 hits the top, it moves upward. The first buffer pad 5 and the support 9 move upward accordingly. The first buffer pad 5 collides with the slide 4 to achieve initial buffering. The slide 4 moves upward and compresses the air spring 7 for further buffering. At the same time, the two locking blocks 8 touch the slide 4. The two locking blocks 8 move towards each other first. As the support 9 moves upward, the two locking blocks 8 are at the same height as the two locking slots in the slide 4. Then the return spring 11 pushes the locking blocks 8 to return to their original position. The two locking blocks 8 are inserted into the two locking slots in the slide 4, which can prevent the support 9 and the car 6 from falling downward after hitting the top.

[0032] After the elevator is repaired and restored to normal, the worker puts his hand or a tool into the first inspection port and moves the two levers 12 toward each other. The two locking blocks 8 move toward each other and disengage from the two slots in the slide block 4, thus releasing the lock on the car 6.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents. Contents not described in detail in this utility model are considered prior art known to those skilled in the art.

Claims

1. A plunger protection mechanism for an elevator, characterized by The utility model provides a kind of elevator, including mounting seat (1), the bottom end of mounting seat (1) is fixed with pedestal (3), the inside of pedestal (3) is equipped with slide (4), the bottom end of slide (4) penetrates pedestal (3), the below of slide (4) is equipped with car (6), the top end of car (6) is fixed with two hanging ropes (2), mounting seat (1), pedestal (3) and slide (4) are all equipped with two through slot for hanging rope (2) to pass through, the top end of car (6) is fixed with support (9) and four first buffer pad (5) of rectangular array arrangement, the inside of support (9) is equipped with two sliding grooves, two sliding grooves are all equipped with clamping block (8), the end of two clamping block (8) opposite is extended to support (9) outside, the side wall of two clamping block (8) opposite is all fixed with multiple guide posts (10), every guide post (10) is all covered with reset spring (11), the bottom end of slide (4) is equipped with recess adapted with support (9), the inside of slide (4) is equipped with two clamping groove adapted with clamping block (8), the top end of slide (4) is fixed with multiple air springs (7).

2. A pit protection mechanism for an elevator according to claim 1, characterized in that The inside of the pedestal (3) is fixed with two second buffer pads (30).

3. A pit hooping mechanism for an elevator according to claim 1, characterized in that, The side wall of two clamping block (8) opposite is all fixed with push plate (12), one side of slide (4) is equipped with first access hole.

4. A pit hooping mechanism for an elevator according to claim 1, characterized in that, One side of the pedestal (3) is equipped with second access hole.

5. A pit hooping mechanism for an elevator according to claim 1, characterized in that, The mounting seat (1) is equipped with multiple mounting holes.

Citation Information

Patent Citations

  • Roof rushing prevention device and elevator

    CN219156223U