Elevator maintenance protection device

By designing elevator maintenance and protection devices with clamping and shock absorption components, the safety hazards of the rapid rise of the elevator car to the maintenance personnel are solved, and the stable clamping and shock absorption effects that are adapted to different sizes of the elevator car are achieved, ensuring the safety of maintenance personnel.

CN223280432UActive Publication Date: 2025-08-29SICHUAN SHUDA ELEVATOR CO LTD
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Patent Information

Application Number
CN202422824548.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-08-29
Estimated Expiration
2034-11-19

AI Technical Summary

Technical Problem

The top of the elevator car has a lack of barriers when it rises rapidly in unexpected circumstances, resulting in safety hazards for maintenance personnel, and the existing clamping protection devices cannot adapt to different sizes of elevator car.

Method used

An elevator maintenance and protection device including a clamping assembly and a shock absorbing assembly is designed. The clamping assembly achieves stable clamping through a telescopic cylinder and a linkage strip. The shock absorbing assembly uses rubber shock absorbing columns and springs to disperse the lift force to ensure safety.

Benefits of technology

It effectively solves the problem of squeezing damage to maintenance personnel caused by the rapid rise of the elevator car, and adapts to different sizes of the elevator car, improving safety and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an elevator maintenance protection device, and particularly relates to the technical field of elevator safety protection, the elevator maintenance protection device comprises an elevator cabin, a clamping assembly is arranged at the top of the elevator cabin, and a plurality of damping assemblies are arranged at the top of the clamping assembly; the clamping assembly comprises a telescopic cylinder, a mounting seat is arranged at the bottom of the telescopic cylinder, a linkage strip is fixedly connected to the telescopic end of the mounting seat, pull columns are rotationally connected to the two ends of the linkage strip, connecting plates are fixedly connected to the ends, away from the linkage strip, of the pull columns, and first T-shaped sliding blocks are fixedly connected to the bottoms of the connecting plates. A plurality of pull rods are fixedly connected to the sides, close to the pull columns, of the connecting plates, first springs sleeve the surfaces of the pull rods, first clamping blocks are fixedly connected to the ends, away from the connecting plates, of the pull rods, second clamping blocks are arranged on the sides, close to the pull rods, of the first clamping blocks, first T-shaped sliding grooves are formed in the tops of the second clamping blocks, and a plurality of telescopic grooves are formed in the tops of the second clamping blocks; therefore, the second clamping block is fixedly connected with a plurality of first connecting pieces.
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Description

Technical Field

[0001] The utility model relates to the technical field of elevator safety protection, and more specifically, to an elevator maintenance and protection device. Background Art

[0002] Nowadays, with the rapid development of urbanization, more and more high-rise buildings are being built, and the usage rate of elevators has also increased accordingly. During the long-term use of elevators, in order to ensure the stable and safe operation of the elevators, the elevators need to be regularly repaired and maintained. When the maintenance personnel stand on the top of the elevator car to perform elevator maintenance work, the personal safety of the elevator maintenance personnel must also be guaranteed.

[0003] During maintenance, the elevator car roof lacks a collision-resistant structure. If the car unexpectedly rises during maintenance, there's no barrier on top. In the event of an accident, the car roof rapidly rises toward the shaft, posing a significant safety risk to maintenance personnel and potentially causing crushing injuries. Furthermore, typical clamping protection devices vary in size from car to car. Therefore, an elevator maintenance protection device has been developed to address this issue. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides an elevator maintenance protection device. The technical problem to be solved by the present invention is that there is no obstruction on the top of the elevator car. When an accident occurs, the top of the elevator car rises rapidly toward the top of the elevator shaft, posing a great safety risk to the maintenance personnel and causing squeezing injuries. In addition, the general clamping protection device has the problem that the sizes of each elevator car are different when used.

[0005] To achieve the above-mentioned object, the present utility model provides the following technical solutions: an elevator maintenance and protection device, comprising an elevator car, a clamping assembly is provided on the top of the elevator car, and a plurality of shock-absorbing assemblies are provided on the top of the clamping assembly;

[0006] The clamping assembly includes a telescopic cylinder, a mounting seat is provided at the bottom of the telescopic cylinder, the telescopic end of the mounting seat is fixedly connected to a linkage bar, both ends of the linkage bar are rotatably connected to pull columns, the pull columns are fixedly connected to a connecting plate at one end away from the linkage bar, the bottom of the connecting plate is fixedly connected to a first T-shaped slider, the connecting plate is fixedly connected to a plurality of pull rods on the side close to the pull column, the surface of the pull rod is sleeved with a first spring, the end of the pull rod away from the connecting plate is fixedly connected to a first clamping block, the first clamping block is provided with a second clamping block on the side close to the pull rod, the top of the second clamping block is provided with a first T-shaped slide groove, the top of the second clamping block is provided with a plurality of telescopic slots, the second clamping block is therefore fixedly connected to a plurality of first connecting plates, and the bottom of the outer surface of the mounting seat is fixedly connected to a plurality of second connecting plates.

[0007] In a preferred embodiment, the shock absorbing assembly includes a base, a plurality of support columns are fixedly connected to the top of the base, a plurality of second T-shaped slide grooves are opened on the surface of the support column, a support rod is fixedly connected to the top of the support column, a first fixing plate is fixedly connected to the top of the support column, a second spring is fixedly connected to the top of the first fixing plate, a second fixing plate is fixedly connected to the top of the second spring, a top column is fixedly connected to the top of the second fixing plate, a fixing ring is fixedly connected to the outer surface of the top column, a plurality of slide strips are fixedly connected to the bottom of the fixing ring, a second T-shaped slider is fixedly connected to the inner side of the slide strips, and a rubber shock absorbing column is rotatably connected to the top of the top column.

[0008] In a preferred embodiment, a plurality of notches connected to the pull posts are provided on the surface of the linkage bar, and the inner surfaces of the first clamping block and the second clamping block are both made of rubber.

[0009] In a preferred embodiment, the first spring is arranged in the telescopic slot, and the first T-shaped sliding block is arranged in the first T-shaped sliding groove.

[0010] In a preferred embodiment, the center of the first fixing plate is hollow, and the rubber shock-absorbing column is also hollow.

[0011] In a preferred embodiment, a rubber pad is provided at the center of the second fixing plate and is aligned with the top surface of the support rod, and the second T-shaped sliding block is provided in the second T-shaped sliding groove.

[0012] Technical effects and advantages of this utility model:

[0013] 1. The utility model is provided with an elevator warehouse and a clamping assembly. When used later, after placing the mounting base on the top of the elevator warehouse, the telescopic cylinder is connected to the mounting base, and then the two second clamping blocks are placed. The pull column and the linkage bar are placed in the grooves at appropriate positions on the surface. After the connection is completed, the first connecting pieces on the inner sides of the two second clamping blocks are connected with the second connecting pieces on both sides of the mounting base by bolts. Then, the telescopic cylinder is started, and the linkage rod is driven to move by the telescopic cylinder so that the first clamping block can contact one side of the elevator warehouse. After the telescopic cylinder is contracted, the first clamping block and the second clamping block clamp the elevator warehouse, thereby solving the problem of different sizes of each elevator warehouse when using the general clamping protection device and improving the overall stability.

[0014] 2. The utility model is provided with a clamping assembly and a shock-absorbing assembly. After the clamping assembly clamps and stabilizes the elevator car, when the elevator car loses control and suddenly rises, the maintenance personnel immediately lie down. Secondly, the rubber shock-absorbing column first contacts the top of the elevator shaft. First, the rubber shock-absorbing column performs a slight shock-absorbing and buffering on the whole. After the second spring at the bottom of the top column, the second fixed plate and the shock-absorbing effect of the top column disperse most of the rising force, it can rebound multiple times, which solves the safety problem of the elevator car rising rapidly toward the top of the elevator shaft in the event of an accident, causing great hidden danger to the safety of the maintenance personnel and causing squeezing injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is an exploded view of the clamping assembly structure of the present invention.

[0017] Figure 3 For the utility model Figure 2 A magnified view of the structure in the middle.

[0018] Figure 4 This is an exploded view of the shock absorbing component structure of the present utility model.

[0019] The accompanying drawings are marked as follows: 1. Elevator carport; 2. Clamping assembly; 21. Telescopic cylinder; 22. Mounting seat; 23. Linkage bar; 24. Pull column; 25. Connecting plate; 26. First T-shaped slider; 27. Pull rod; 28. First spring; 29. ​​First clamping block; 210. Second clamping block; 211. First T-shaped slide groove; 212. Telescopic groove; 213. First connecting plate; 214. Second connecting plate; 3. Shock-absorbing assembly; 31. Base; 32. Support column; 33. Second T-shaped slide groove; 34. Support rod; 35. First fixing plate; 36. Second spring; 37. Second fixing plate; 38. Top column; 39. Fixed ring; 310. Slide bar; 311. Second T-shaped slider; 312. Rubber shock-absorbing column. DETAILED DESCRIPTION

[0020] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0021] The utility model provides an elevator maintenance and protection device, comprising an elevator car 1, a clamping assembly 2 is arranged on the top of the elevator car 1, and a plurality of shock absorbing assemblies 3 are arranged on the top of the clamping assembly 2;

[0022] The clamping assembly 2 includes a telescopic cylinder 21, a mounting seat 22 is provided at the bottom of the telescopic cylinder 21, and the telescopic end of the mounting seat 22 is fixedly connected to a linkage bar 23, and both ends of the linkage bar 23 are rotatably connected to a pull column 24, and the pull column 24 is fixedly connected to a connecting plate 25 at the end away from the linkage bar 23, and the bottom of the connecting plate 25 is fixedly connected to a first T-shaped slider 26, and the connecting plate 25 is fixedly connected to a plurality of pull rods 27 on the side close to the pull column 24, and a first spring 28 is sleeved on the surface of the pull rod 27, and the pull rod 27 is fixedly connected to a first clamping block 29 at the end away from the connecting plate 25, and a second clamping block 210 is provided on the side of the first clamping block 29 close to the pull rod 27, and a first T-shaped slide groove 211 is opened on the top of the second clamping block 210, and a plurality of telescopic slots 212 are opened on the top of the second clamping block 210, so that the second clamping block 210 is fixedly connected to a plurality of first connecting pieces 213, and a plurality of second connecting pieces 214 are fixedly connected to the bottom of the outer surface of the mounting seat 22.

[0023] Among them, the shock absorbing assembly 3 includes a base 31, a plurality of support columns 32 are fixedly connected to the top of the base 31, a plurality of second T-shaped slide grooves 33 are opened on the surface of the support column 32, a support rod 34 is fixedly connected to the top of the support column 32, a first fixing plate 35 is fixedly connected to the top of the support column 32, a second spring 36 is fixedly connected to the top of the first fixing plate 35, a second fixing plate 37 is fixedly connected to the top of the second spring 36, a top of the second fixing plate 37 is fixedly connected to a top column 38, a fixing ring 39 is fixedly connected to the outer surface of the top column 38, a plurality of slide bars 310 are fixedly connected to the bottom of the fixing ring 39, a second T-shaped slider 311 is fixedly connected to the inner side of the slide bar 310, and a rubber shock absorbing column 312 is rotatably connected to the top of the top column 38.

[0024] The surface of the linkage bar 23 is provided with a plurality of notches connected to the pull column 24, and the inner surfaces of the first clamping block 29 and the second clamping block 210 are both made of rubber material, so as to avoid further damage to the motor car when the clamp is clamped.

[0025] The first spring 28 is disposed in the telescopic slot 212 , and the first T-shaped sliding block 26 is disposed in the first T-shaped sliding slot 211 , thereby ensuring the sliding stability between the connecting plate 25 and the first clamping block 29 .

[0026] The center of the first fixing plate 35 is hollow, and the rubber shock-absorbing column 312 is also hollow, so that the rubber shock-absorbing column 312 has more buffering time and shock-absorbing effect when connected to the top of the elevator shaft.

[0027] Among them, a rubber pad is provided at the center of the second fixing plate 37, which is in alignment with the top surface of the support rod 34, and the second T-shaped slider 311 is provided in the second T-shaped slide groove 33; in later use, the shock-absorbing properties of the rubber material can be used to reduce the vibration of the maintenance personnel, and the sliding distance between the second T-shaped slider 311 and the second T-shaped slide groove 33 can also be used to allow the maintenance personnel to have more buffer time.

[0028] Working principle of this utility model:

[0029] When used later, the mounting seat 22 can be placed directly on the top of the elevator car 1, and then the telescopic cylinder 21 can be connected to the mounting seat 22, and then the two second clamping blocks 210 can be put in. The pull column 24 and the linkage bar 23 are placed in the grooves at the appropriate positions on the surface. After the connection is completed, the first connecting piece 213 on the inner side of the two second clamping blocks 210 and the second connecting pieces 214 on both sides of the mounting seat 22 are bolted together, and then the telescopic cylinder 21 is started. The linkage rod 23 is driven to move by the telescopic cylinder 21, so that the first clamping block 29 can contact one side of the elevator car 1. After the telescopic cylinder 21 is contracted, the first clamping block 29 and the second clamping block 210 clamp the elevator car, which solves the problem of different sizes of each elevator car 1 when the general clamping protection device is used, and improves the overall stability. After the clamping assembly 2 clamps the elevator car 1 and stabilizes it, when the elevator car loses control and suddenly rises, the maintenance personnel immediately lie down. Secondly, the first thing to contact the top of the elevator shaft is the rubber shock-absorbing column 312. First, the rubber shock-absorbing column 312 performs a slight shock-absorbing and buffering on the whole. After the shock-absorbing effect of the second spring 36 at the bottom of the top column 38, the second fixed plate 37 and the top column 38 disperse most of the rising force, it can rebound multiple times, which solves the safety problem of the elevator car 1 rising rapidly toward the top of the elevator shaft in the event of an accident, causing great hidden danger to the safety of the maintenance personnel and causing squeezing injuries.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0031] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An elevator maintenance and protection device, comprising an elevator car (1), characterized in that: A clamping assembly (2) is provided on the top of the elevator compartment (1), and a plurality of shock-absorbing assemblies (3) are provided on the top of the clamping assembly (2); The clamping assembly (2) comprises a telescopic cylinder (21), a mounting seat (22) is provided at the bottom of the telescopic cylinder (21), a telescopic end of the mounting seat (22) is fixedly connected to a linkage bar (23), both ends of the linkage bar (23) are rotatably connected to a pull column (24), the end of the pull column (24) away from the linkage bar (23) is fixedly connected to a connecting plate (25), the bottom of the connecting plate (25) is fixedly connected to a first T-shaped slider (26), the side of the connecting plate (25) close to the pull column (24) is fixedly connected to a plurality of pull rods (27), the surfaces of the pull rods (27) are sleeved There is a first spring (28), and the pull rod (27) is fixedly connected to a first clamping block (29) at one end away from the connecting plate (25), and the first clamping block (29) is provided with a second clamping block (210) on the side close to the pull rod (27), and the top of the second clamping block (210) is provided with a first T-shaped sliding groove (211), and the top of the second clamping block (210) is provided with a plurality of telescopic grooves (212), so that the second clamping block (210) is fixedly connected to a plurality of first connecting plates (213), and the bottom of the outer surface of the mounting seat (22) is fixedly connected to a plurality of second connecting plates (214).

2. An elevator maintenance and protection device according to claim 1, characterized in that: The shock absorbing assembly (3) comprises a base (31), a plurality of support columns (32) are fixedly connected to the top of the base (31), a plurality of second T-shaped sliding grooves (33) are provided on the surface of the support columns (32), a support rod (34) is fixedly connected to the top of the support columns (32), a first fixing plate (35) is fixedly connected to the top of the support columns (32), a second spring (36) is fixedly connected to the top of the first fixing plate (35), a second fixing plate (37) is fixedly connected to the top of the second spring (36), a top of the second fixing plate (37) is fixedly connected to a top column (38), an outer surface of the top column (38) is fixedly connected to a fixing ring (39), a plurality of slide bars (310) are fixedly connected to the bottom of the fixing ring (39), the inner sides of the slide bars (310) are fixedly connected to second T-shaped sliding blocks (311), and the top of the top column (38) is rotatably connected to a rubber shock absorbing column (312).

3. The elevator maintenance and protection device according to claim 1, characterized in that: The surface of the linkage bar (23) is provided with a plurality of notches connected to the pull posts (24), and the inner surfaces of the first clamping block (29) and the second clamping block (210) are both made of rubber.

4. The elevator maintenance and protection device according to claim 1, characterized in that: The first spring (28) is arranged in the telescopic groove (212), and the first T-shaped sliding block (26) is arranged in the first T-shaped sliding groove (211).

5. The elevator maintenance and protection device according to claim 2, characterized in that: The center of the first fixing plate (35) is hollow, and the rubber shock-absorbing column (312) is also hollow.

6. The elevator maintenance and protection device according to claim 2, characterized in that: A rubber pad is provided at the center of the second fixing plate (37) and is aligned with the top surface of the support rod (34). The second T-shaped sliding block (311) is provided in the second T-shaped sliding groove (33).