A height protection device for excavator assembly line

By designing a height protection device for excavator assembly lines using differential fall arrestors and mechanical locking technology, the problem of personnel falling during excavator assembly has been solved. This device achieves rapid locking and high compatibility, improving safety and assembly efficiency while reducing enterprise costs.

CN224432068UActive Publication Date: 2026-06-30SHANXI TAIZHONG ENG MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI TAIZHONG ENG MASCH CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

There is a safety hazard of personnel falling during the current excavator assembly process, and the existing height protection devices are inadequate and cannot effectively protect the safety of assembly personnel.

Method used

A height protection device for excavator assembly lines was designed. It adopts differential fall arrestor and mechanical locking technology, combined with telescopic column, rotating mechanism and cantilever structure to achieve rapid locking and adapt to different machine models, providing all-round safety protection.

Benefits of technology

It locks within 0.2 seconds to prevent personnel from falling, improves assembly efficiency, reduces accident rate and equipment damage, has high compatibility, adapts to different models, and reduces enterprise costs.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224432068U_ABST
    Figure CN224432068U_ABST
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Abstract

This utility model relates to the field of height safety technology, specifically to a height safety device for an excavator assembly line. It includes a column, a base fixedly connected to the bottom of the column, the base being fixed to the ground, a connecting plate at the top of the column, a rotating mechanism rotatably connected to the connecting plate, a cantilever fixedly connected to the rotating mechanism, a slide rail at the bottom of the cantilever, and a fall arrestor mounted on the slide rail. This utility model can be adapted to different excavator models, effectively ensuring the safety of personnel assembling at heights and improving the efficiency of excavator assembly.
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Description

Technical Field

[0001] This utility model relates to the field of height protection technology, specifically to a height protection device for an excavator assembly line. Background Technology

[0002] Working at heights is widespread in fields such as construction, power, and communications. According to the "Annual Report on Safety Production Accident Statistics," falls from heights account for 37% of all industrial accidents. Currently, the safety devices for working at heights are not adequate for mainstream manufacturers in the construction machinery industry.

[0003] Since the types of excavators range from 0.8 tons to 400 tons, the assembly work surface for some parts is 1.5 meters above the ground. This work is considered high-altitude work, and there have been accidents in the industry where people have fallen and been injured or killed during the assembly and repair of excavators. Utility Model Content

[0004] To address the aforementioned issues, this utility model proposes a height protection device for excavator assembly lines, which can be adapted to different excavator models, effectively ensuring the safety of personnel working at heights and improving the efficiency of excavator assembly.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a height protection device for an excavator assembly line, comprising a column, a base fixedly connected to the bottom of the column, the base being fixed to the ground, a connecting plate being provided at the top of the column, a rotating mechanism being rotatably connected to the connecting plate, a cantilever being fixedly connected to the rotating mechanism, a slide rail being provided at the bottom of the cantilever, and a fall arrestor being provided on the slide rail.

[0006] As a further embodiment of this utility model: the connecting plate includes a first connecting plate and a second connecting plate, and the rotating mechanism is disposed between the first connecting plate and the second connecting plate.

[0007] As a further improvement of this utility model: the bottom of the first connecting plate is provided with a reinforcing rib, and the reinforcing rib is fixedly connected to the column.

[0008] As a further embodiment of this utility model: the top of the column is provided with a driving mechanism, and the output end of the driving mechanism is driven and connected to the rotating mechanism.

[0009] As a further embodiment of this utility model: the rotating mechanism includes a rotating shaft, a bushing is provided on the outer side of the rotating shaft, the cantilever is fixedly connected to the bushing, a first through hole and a second through hole are provided at the ends of the first connecting plate and the second connecting plate, the top end of the rotating shaft passes through the second through hole and is connected to the output end of the driving mechanism, the bottom end of the rotating shaft passes through the first through hole and is provided with a locking nut.

[0010] As a further embodiment of this utility model: the cantilever includes a crossbeam and diagonal braces, the diagonal braces are located on both sides of the crossbeam and are fixedly connected to the bushings, serving as support and protection.

[0011] As a further improvement of this utility model, the connecting plate is also provided with a limiting block to limit the rotation angle of the cantilever.

[0012] As a further embodiment of this utility model: the fall arrestor is slidably connected to the slide rail, the fall arrestor is a differential fall arrestor and is provided with several at intervals, and the fall arrestor is provided with a buckle.

[0013] As a further improvement of this utility model: the column is a telescopic column, and a control button is provided on the side of the column for adjusting the telescopic height of the column.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model is designed for excavator assembly lines. It employs a protective device with differential triggering and mechanical locking technology, which features highly reliable braking. Through the differential fall arrestor, the protective device of this utility model can lock within 0.2 seconds, with a braking distance of ≤0.5 meters, effectively preventing workers from falling, ensuring personnel safety during the excavator assembly process, improving the excavator assembly efficiency, and reducing equipment damage compensation, downtime losses, and insurance costs caused by accidents.

[0016] 2. The height protection device of this utility model has high compatibility and can be adapted to all models of excavator assembly lines, thereby reducing the overall cost of enterprises. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the excavation and assembly production line height protection device of this utility model.

[0018] Figure 2 A schematic diagram of the rotating structure of the excavator assembly line height protection device of this utility model;

[0019] In the diagram: 1. Column; 2. Base; 3. Connecting plate; 31. First connecting plate; 32. Second connecting plate; 33. First through hole; 34. Second through hole; 4. Rotating mechanism; 41. Shaft; 42. Bushing; 43. Locking nut; 5. Cantilever; 51. Crossbeam; 52. Diagonal brace; 6. Slide rail; 7. Fall arrestor; 8. Reinforcing rib; 9. Drive mechanism; 10. Limit block; 11. Buckle; 12. Control button. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] refer to Figures 1 to 2 A height protection device for an excavator assembly line includes a column 1, a base 2 fixedly connected to the bottom of the column 1, the base 2 being fixed to the ground, a connecting plate 3 on the top of the column 1, a rotating mechanism 4 rotatably connected to the connecting plate 3, a cantilever 5 fixedly connected to the rotating mechanism 4, a slide rail 6 at the bottom of the cantilever 5, and a fall arrestor 7 on the slide rail 6.

[0022] The connecting plate 3 includes a first connecting plate 31 and a second connecting plate 32, and the rotating mechanism 4 is located between the first connecting plate 31 and the second connecting plate 32.

[0023] The bottom of the first connecting plate 31 is provided with a reinforcing rib 8, which is fixedly connected to the column 1.

[0024] The top of the column 1 is equipped with a drive mechanism 9, and the output end of the drive mechanism 9 is connected to the rotating mechanism 4 for drive.

[0025] The rotating mechanism 4 includes a rotating shaft 41, a bushing 42 on the outside of the rotating shaft 41, a cantilever 5 fixedly connected to the bushing 42, a first through hole 33 and a second through hole 34 at the ends of the first connecting plate 31 and the second connecting plate 32, the top end of the rotating shaft 41 passes through the second through hole 34 and is connected to the output end of the drive mechanism 9, and the bottom end of the rotating shaft 41 passes through the first through hole 33 and is provided with a locking nut 43.

[0026] The cantilever 5 includes a crossbeam 51 and a diagonal brace 52. The diagonal brace 52 is located on both sides of the crossbeam 51 and is fixedly connected to the bushing 42, serving as a support and protection function.

[0027] The connecting plate 3 is also equipped with a limiting block 10 to limit the rotation angle of the cantilever 5.

[0028] The fall arrestor 7 is slidably connected to the slide rail 6. The fall arrestor 7 is a differential fall arrestor and is provided with several at intervals. The fall arrestor 7 is provided with a buckle 11.

[0029] The column 1 is a telescopic column, and a control button 12 is provided on the side of the column 1 for adjusting the telescopic height of the column 1.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A climbing protection device for excavator assembly production line, comprising a stand (1), a base (2) is fixedly connected at the bottom of the stand (1), and the base (2) is fixed with the ground, characterized in that: The top of the column (1) is provided with a connecting plate (3), a rotating mechanism (4) is rotatably connected to the connecting plate (3), a cantilever (5) is fixedly connected to the rotating mechanism (4), a slide rail (6) is provided at the bottom of the cantilever (5), and a fall arrestor (7) is provided on the slide rail (6).

2. The excavator assembly line height protection device according to claim 1, characterized in that: The connecting plate (3) includes a first connecting plate (31) and a second connecting plate (32), and the rotating mechanism (4) is located between the first connecting plate (31) and the second connecting plate (32).

3. The excavator assembly line height protection device according to claim 2, characterized in that: The bottom of the first connecting plate (31) is provided with a reinforcing rib (8), which is fixedly connected to the column (1).

4. The excavator assembly line height protection device according to claim 3, characterized in that: The top of the column (1) is provided with a drive mechanism (9), and the output end of the drive mechanism (9) is driven and connected to the rotating mechanism (4).

5. The excavator assembly line height protection device according to claim 4, characterized in that: The rotating mechanism (4) includes a rotating shaft (41), and a bushing (42) is provided on the outer side of the rotating shaft (41). The cantilever (5) is fixedly connected to the bushing (42). The first connecting plate (31) and the second connecting plate (32) have a first through hole (33) and a second through hole (34) at their ends. The top end of the rotating shaft (41) passes through the second through hole (34) and is connected to the output end of the driving mechanism (9). The bottom end of the rotating shaft (41) passes through the first through hole (33) and is provided with a locking nut (43).

6. The excavator assembly line height protection device according to claim 5, characterized in that: The cantilever (5) includes a crossbeam (51) and a diagonal brace (52). The diagonal brace (52) is located on both sides of the crossbeam (51) and is fixedly connected to the bushing (42) to provide support and protection.

7. The excavator assembly line height protection device according to claim 6, characterized in that: The connecting plate (3) is also provided with a limiting block (10) to limit the rotation angle of the cantilever (5).

8. The excavator assembly line height protection device according to claim 7, characterized in that: The fall arrestor (7) is slidably connected to the slide rail (6). The fall arrestor (7) is a differential fall arrestor and is provided with several at intervals. The fall arrestor (7) is provided with a buckle (11).

9. The excavator assembly line height protection device according to claim 1, characterized in that: The column (1) is a telescopic column, and a control button (12) is provided on the side of the column (1) for adjusting the telescopic height of the column (1).