Elevator maintenance device with early warning function

By designing an elevator maintenance device with early warning function, which uses adjustment and noise components to support the elevator car and alert maintenance personnel when abnormal movement occurs, the problem of precise stopping and safety of the elevator car is solved, and the safety and efficiency of elevator maintenance are improved.

CN224172254UActive Publication Date: 2026-04-28虏克电梯有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
虏克电梯有限公司
Filing Date
2025-04-16
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing elevator maintenance and protection devices lack height adjustment functionality, making it difficult for the elevator car to stop precisely, causing mental stress for maintenance personnel, and making it impossible to promptly notify maintenance personnel of abnormal elevator car movements.

Method used

An elevator maintenance device with early warning function was designed, including an adjustment component and a sounding component. The device supports the elevator car with a hydraulic pump to prevent it from moving downwards, and alerts the staff with a horn when the car is sliding down, thereby reducing the need for precise adjustments and improving safety.

Benefits of technology

This system enables elevator car protection without precise adjustments within the elevator shaft, reducing the mental stress on maintenance personnel. It also uses a loudspeaker to alert staff to abnormal movement, improving the safety and efficiency of elevator maintenance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224172254U_ABST
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Abstract

The utility model discloses an elevator maintenance device with an early warning function, and belongs to the field of elevator maintenance, the elevator maintenance device with the early warning function comprises an adjusting assembly, the adjusting assembly comprises a body, a rotating piece, a centralizing piece, a telescopic piece, a supporting block, a chassis piece and a hydraulic pump, the rotating piece is arranged in the middle of the body, the centralizing piece is arranged on the inner side of the body, and the telescopic piece is arranged on the inner side of the body. The telescopic piece is arranged on the inner side of the centralizing piece, the supporting blocks are fixedly arranged at the end opening of the telescopic piece, the chassis piece is arranged at the bottom end of the body, and the hydraulic pump is fixedly arranged at the upper end of one supporting block; according to the maintenance device, a worker does not need to precisely adjust the elevator car in an elevator shaft, meanwhile, when the elevator car slides down, the worker can be reminded that the elevator car slides down by blowing the loudspeaker, a user is reminded of the problem of the elevator car, and the user can maintain the elevator car better.
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Description

Technical Field

[0001] This utility model relates to the field of elevator maintenance technology, specifically to an elevator maintenance device with an early warning function. Background Technology

[0002] An elevator is a vertical transportation device primarily used for the efficient movement of people and goods within buildings. It is widely used in residential, commercial, industrial, and special applications. Elevators play a vital role in improving living convenience, optimizing business and office efficiency, supporting industrial and warehousing transportation, ensuring fire safety, and promoting building development. Elevators are not only an important component of modern buildings but also offer benefits such as improving quality of life, optimizing work efficiency, ensuring safety, and driving building development.

[0003] Due to the high frequency of elevator use, elevators require numerous maintenance procedures. When workers perform maintenance, they often have to enter the bottom of the elevator shaft to repair the elevator. If the elevator experiences abnormal displacement during maintenance, it can cause loss of life to the workers, with extremely serious consequences.

[0004] An investigation revealed that a Chinese invention patent (publication number: CN102001563A) discloses an elevator maintenance protection device. This device, in use, places a support member on the elevator pit and a buffer member above the support member and below the car or car frame. A safety space is formed between the top surface of the support member and the elevator pit, allowing maintenance personnel to work safely within the pit. If the car experiences abnormal slippage, the buffer member will contact the bottom of the car or car frame. As the car slips further, the buffer member cushions and decelerates its descent. With the support member supporting the buffer member, the car gradually decelerates and comes to a stop on the buffer member.

[0005] Although the aforementioned patent protects maintenance personnel by using a buffer to prevent the elevator car from sliding down, the device lacks height adjustment functionality. It requires the elevator car to be precisely positioned at the top of the device. When maintenance personnel are repairing the elevator shaft, the descending car can cause significant psychological stress for the user. Furthermore, when the elevator car moves downwards, it should notify the maintenance personnel so that they are aware of the problem and can better facilitate repairs.

[0006] Therefore, this utility model provides an elevator maintenance device with an early warning function to solve the above problems. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] This utility model provides an elevator maintenance device with early warning function, which aims to solve the problems mentioned in the background art.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model provides the following technical solution: An elevator maintenance device with an early warning function includes an adjustment component, comprising a body, a rotating component, a straightening component, a telescopic component, a support block, a chassis component, and a hydraulic pump. The rotating component is located in the middle of the body, the straightening component is located inside the body, the telescopic component is located inside the straightening component, the support block is fixedly located at the port of the telescopic component, the chassis component is located at the bottom of the body, and the hydraulic pump is fixedly located on the upper end of one of the support blocks. The hydraulic pump is used to directly contact the elevator car to support the elevator car and prevent it from moving downwards. An actuation component includes a horn and a button. The button is located on the upper end of one of the support blocks, the horn is fixedly installed on the upper end of one of the support blocks, the horn is flush with the hydraulic pump, and the button is used to press the horn when the elevator moves downwards.

[0011] As a preferred technical solution of this application, the rotating component includes a worm gear, a worm, a handle, a through groove, a first gear, a through column, and a housing. The through groove is opened in the middle of the body, the through column is rotatably disposed inside the through groove, the worm gear is fixedly disposed outside the through column, the worm gear is disposed outside the body, the worm is meshed with and disposed on the upper end of the worm gear, the handle is fixedly disposed at the rear end of the worm, and the housing is fixedly disposed at the rear end of the body.

[0012] As a preferred technical solution of this application, the straightening component includes an inner groove and a sliding block. The inner groove is opened inside the body, and the sliding block is slidably disposed inside the inner groove.

[0013] As a preferred technical solution of this application, the telescopic member includes an ascending serrated bar, a descending serrated bar, and a first spring. The ascending serrated bar is fixedly disposed on the side end of one of its sliding blocks, and the descending serrated bar is fixedly disposed on the side end of the other sliding block. One of the first springs is fixedly disposed on the bottom end of the ascending serrated bar, and the other of the first springs is fixedly disposed on the upper end of the descending serrated bar.

[0014] As a preferred technical solution of this application, the chassis component includes a second spring, a pressure stabilizing block, and a pressure stabilizing cavity block. The pressure stabilizing cavity block is fixedly disposed at the bottom end of one of its support blocks, and a plurality of second springs are fixedly disposed at the bottom end of the pressure stabilizing cavity block. The pressure stabilizing cavity block is disposed at the other end of the second spring.

[0015] As a preferred technical solution of this application, the chassis component further includes a circular annular chassis and a friction groove. The circular annular chassis is fixedly disposed at the bottom end of the pressure stabilizing block, and the friction groove is formed at the bottom end of the circular annular chassis.

[0016] As a preferred technical solution of this application, the actuating element includes a support platform, an airbag push block, and a horn locking block. The support platform is fixedly disposed on the upper end of one of the support blocks, the airbag push block is fixedly disposed on the upper end of the support block, and the horn locking block locks onto the horn.

[0017] (III) Beneficial Effects

[0018] This maintenance device allows workers to protect themselves during elevator maintenance without needing to precisely adjust the elevator car inside the elevator shaft. Additionally, it alerts workers by blowing a horn when the elevator car slides down, providing information to users about the problem and facilitating easier repairs. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of an elevator maintenance device with early warning function;

[0020] Figure 2 This is a left sectional view of an elevator maintenance device with early warning functionality;

[0021] Figure 3 Another left-side sectional view of an elevator maintenance device with early warning function;

[0022] Figure 4 for Figure 3 A magnified view of part A;

[0023] Figure 5 Another front sectional view of an elevator maintenance device with early warning function;

[0024] In the picture:

[0025] 1. Adjustment component; 11. Body; 12. Rotating component; 121. Worm gear; 122. Worm; 123. Handle; 124. Through slot; 125. First gear; 126. Through column; 127. Outer shell; 13. Straightening component; 131. Inner groove; 132. Sliding block; 14. Telescopic component; 141. Rising serrated bar; 142. Lowering serrated bar; 143. First spring; 15. Support block; 16. Chassis component; 161. Second spring; 162. Pressure stabilizing block; 163. Pressure stabilizing cavity block; 164. Circular chassis; 165. Friction groove; 17. Hydraulic pump; 2. Sound component; 21. Horn; 22. Pressing component; 221. Support platform; 222. Airbag push block; 223. Horn locking block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides an elevator maintenance device with early warning function, such as Figures 1-5 As shown, the elevator maintenance device with early warning function includes an adjustment component 1, which includes a body 11, a rotating component 12, a straightening component 13, a telescopic component 14, a support block 15, a chassis component 16, and a hydraulic pump 17. The rotating component 12 is located in the middle of the body 11, the straightening component 13 is located inside the body 11, the telescopic component 14 is located inside the straightening component 13, the support block 15 is fixedly located at the port of the telescopic component 14, the chassis component 16 is located at the bottom of the body 11, and the hydraulic pump 17 is fixedly located on the upper end of one of the support blocks 15. The hydraulic pump 17 is used to directly contact the elevator car to support the elevator car and prevent it from moving downwards. The sounding component 2 includes a horn 21 and a button 22. The button 22 is located on the upper end of one of the support blocks 15, and the horn 21 is fixedly installed on the upper end of one of the support blocks 15. The horn 21 is flush with the hydraulic pump 17. The button 22 presses the horn 21 when the elevator moves downwards.

[0028] When maintenance workers are performing maintenance work inside the elevator shaft, they rotate the rotating component 12. The telescopic component 14 moves upward at one end and downward at the other end under the action of the straightening component 13, thereby driving the support blocks 15 at both ends to support the ground and the elevator car (the chassis component 16 supports the ground, and the hydraulic pump 17 supports the elevator car). Users do not need to precisely adjust the elevator car, reducing the mental stress on users. At the same time, when the elevator car moves downward while the user is working inside the elevator shaft, the user can press the horn 21 on the button 22 to remind the workers that the car has moved downward, so that the workers can better maintain the elevator.

[0029] The rotating component 12 includes a worm gear 121, a worm 122, a handle 123, a through groove 124, a first gear 125, a through post 126, and a housing 127. The through groove 124 is located in the middle of the main body 11. The through post 126 is rotatably disposed inside the through groove 124. The worm gear 121 is fixedly disposed outside the through post 126. The worm gear 121 is disposed outside the main body 11. The worm 122 is meshed and disposed on the upper end of the worm gear 121. The handle 123 is fixedly disposed at the rear end of the worm 122. The housing 127 is fixedly disposed at the rear end of the main body 11.

[0030] When the staff at the bottom of the elevator shaft need to support the elevator car and the elevator shaft, they turn the handle 123 on the outside of the outer shell 127. The rotation of the handle 123 will drive the worm gear 122 inside the outer shell 127 to rotate the worm wheel 121. The worm wheel 121 will then drive the first gear 125 to start rotating through the through column 126.

[0031] The straightening component 13 includes an inner groove 131 and a sliding block 132. The inner groove 131 is opened inside the body 11, and the sliding block 132 is slidably disposed inside the inner groove 131.

[0032] The telescopic component 14 includes an ascending serrated bar 141, a descending serrated bar 142, and a first spring 143. The ascending serrated bar 141 is fixedly disposed on the side end of one of its sliding blocks 132, and the descending serrated bar 142 is fixedly disposed on the side end of another sliding block 132. One of its first springs 143 is fixedly disposed on the bottom end of the ascending serrated bar 141, and the other first spring 143 is fixedly disposed on the upper end of the descending serrated bar 142.

[0033] When the first gear 125 rotates, it causes the sliding block 132 to slide in the inner groove 131. At the same time, the fixedly connected rising sawtooth 141 rises, the falling sawtooth 142 falls, and the first spring 143 stores energy.

[0034] The chassis component 16 includes a second spring 161, a pressure stabilizing block 162, and a pressure stabilizing cavity block 163. The pressure stabilizing cavity block 163 is fixedly disposed at the bottom end of one of its support blocks 15. Multiple second springs 161 are fixedly disposed at the bottom end of the pressure stabilizing cavity block 163, and the pressure stabilizing cavity block 163 is disposed at the other end of the second spring 161.

[0035] When the lower support block 15 is in contact with the ground, the second spring 161 stores force and steadily pushes the pressure stabilizing block 162 to press against the ground to prevent the device from deviating from the ground.

[0036] The chassis component 16 also includes a circular chassis 164 and a friction groove 165. The circular chassis 164 is fixedly disposed at the bottom end of the pressure stabilizing block 162, and the friction groove 165 is opened at the bottom end of the circular chassis 164.

[0037] In order to ensure a stable fit to the ground, a circular base 164 is provided at the bottom of the pressure stabilizing block 162. A friction groove 165 is provided at the bottom of the circular base 164 to increase friction.

[0038] The actuating element 22 includes a support platform 221, an airbag push block 222, and a horn locking block 223. The support platform 221 is fixedly installed on the upper end of one of the support blocks 15, the airbag push block 222 is fixedly installed on the upper end of the support block 15, and the horn locking block 223 locks the horn 21.

[0039] When the car slides down, it squeezes the horn 21. The airbag part of the horn 21 is squeezed by the airbag pusher 222, which makes a sound to remind the staff that the car has moved, so that users can better find the problem of the elevator and thus better maintain the elevator.

[0040] Working principle of this utility model:

[0041] When a worker at the bottom of the elevator shaft needs to support the elevator car and the shaft, they turn the handle 123 on the outside of the outer casing 127. Turning the handle 123 causes the worm gear 122 inside the outer casing 127 to rotate the worm wheel 121. The worm wheel 121, through the through-post 126, drives the first gear 125 to rotate. The rotation of the first gear 125 causes the sliding block 132 to slide within the inner groove 131. Simultaneously, the fixedly connected rising sawtooth 141 rises, the descending sawtooth 142 descends, and the first spring 143 stores energy, providing support at the lower end. When block 15 is in contact with the ground, the second spring 161 stores force and steadily pushes the pressure stabilizing block 162 to press against the ground. At the same time, a circular base 164 is set at the bottom of the pressure stabilizing block 162. The bottom of the circular base 164 is provided with a friction groove 165 to increase friction and prevent the device from deviating from the ground. When the car slides down, the car squeezes the horn 21. The airbag part of the horn 21 is squeezed by the airbag pusher 222, thereby emitting a sound to remind the staff that the car has moved, so that users can better discover the elevator problem and thus better maintain the elevator.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An elevator maintenance device with early warning function, characterized in that: include The adjustment assembly (1) includes a body (11), a rotating component (12), a straightening component (13), a telescopic component (14), a support block (15), a chassis component (16), and a hydraulic pump (17). The rotating component (12) is located in the middle of the body (11), the straightening component (13) is located inside the body (11), the telescopic component (14) is located inside the straightening component (13), the support block (15) is fixedly located at the port of the telescopic component (14), the chassis component (16) is located at the bottom of the body (11), and the hydraulic pump (17) is fixedly located on the upper end of one of the support blocks (15). The hydraulic pump (17) is used to directly contact the elevator car to support the elevator car and prevent it from moving downward. The sounding component (2) includes a horn (21) and a pusher (22). The pusher (22) is disposed on the upper end of a support block (15). The horn (21) is fixedly installed on the upper end of a support block (15). The horn (21) is flush with the hydraulic pump (17). The pusher (22) presses the horn (21) when the elevator moves down.

2. The elevator maintenance device with early warning function according to claim 1, characterized in that: The rotating component (12) includes a worm gear (121), a worm (122), a handle (123), a through slot (124), a first gear (125), a through post (126), and a housing (127). The through slot (124) is located in the middle of the body (11). The through post (126) is rotatably disposed inside the through slot (124). The worm gear (121) is fixedly disposed outside the through post (126). The worm gear (121) is disposed outside the body (11). The worm (122) is meshed with and disposed on the upper end of the worm gear (121). The handle (123) is fixedly disposed at the rear end of the worm (122). The housing (127) is fixedly disposed at the rear end of the body (11).

3. The elevator maintenance device with early warning function according to claim 2, characterized in that: The straightening component (13) includes an inner groove (131) and a sliding block (132). The inner groove (131) is opened inside the body (11), and the sliding block (132) is slidably disposed inside the inner groove (131).

4. The elevator maintenance device with early warning function according to claim 3, characterized in that: The telescopic component (14) includes an ascending serrated bar (141), a descending serrated bar (142), and a first spring (143). The ascending serrated bar (141) is fixedly disposed on the side end of one of its sliding blocks (132), and the descending serrated bar (142) is fixedly disposed on the side end of another sliding block (132). One of the first springs (143) is fixedly disposed on the bottom end of the ascending serrated bar (141), and the other of the first springs (143) is fixedly disposed on the upper end of the descending serrated bar (142).

5. The elevator maintenance device with early warning function according to claim 4, characterized in that: The chassis component (16) includes a second spring (161), a pressure stabilizing block (162), and a pressure stabilizing cavity block (163). The pressure stabilizing cavity block (163) is fixedly disposed at the bottom end of one of its support blocks (15). A plurality of second springs (161) are fixedly disposed at the bottom end of the pressure stabilizing cavity block (163), and the pressure stabilizing cavity block (163) is disposed at the other end of the second spring (161).

6. The elevator maintenance device with early warning function according to claim 5, characterized in that: The chassis component (16) also includes a circular chassis (164) and a friction groove (165). The circular chassis (164) is fixedly disposed at the bottom end of the pressure stabilizing block (162), and the friction groove (165) is opened at the bottom end of the circular chassis (164).

7. The elevator maintenance device with early warning function according to claim 4, characterized in that: The pusher (22) includes a support platform (221), an airbag pusher (222), and a horn clip (223). The support platform (221) is fixedly mounted on the upper end of one of the support blocks (15). The airbag pusher (222) is fixedly mounted on the upper end of the support block (15). The horn clip (223) clips the horn (21).

Citation Information

Patent Citations

  • Maintaining and protecting device for elevator

    CN102001563A