Anti-falling positioning device for high-place operation

By designing lifting and disassembly components, the height of the guardrail can be adjusted and the fence can be disassembled individually, solving the problem of fixing the height of the guardrail for suspended platforms used in high-altitude operations, reducing the risk of falls and the difficulty of maintenance.

CN224161402UActive Publication Date: 2026-04-24SICHUAN HUACHONGZHI SECURITY CONSULTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN HUACHONGZHI SECURITY CONSULTING CO LTD
Filing Date
2025-05-22
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing suspended platforms for high-altitude operations have fixed guardrail heights, which cannot accommodate workers of different heights, increasing the risk of falls and limiting the operating space during maintenance.

Method used

A fall-prevention positioning device including a lifting component and a disassembly component was designed. The height of the guardrail is adjusted by a motor-driven bidirectional threaded rod, and the guardrail can be disassembled separately in case of damage, avoiding the need for complete disassembly.

Benefits of technology

It enables flexible adjustment of the guardrail height, reduces the risk of falls, increases operating space, and reduces maintenance difficulty and equipment damage costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-place operation anti-falling positioning device, and particularly relates to the technical field of building construction equipment, the high-place operation anti-falling positioning device comprises a bottom plate, the top of the bottom plate is fixedly connected with two fixing frames, the inner surfaces of the two fixing frames are both rotatably connected with rotating doors, and the outer surfaces of the bottoms of the two fixing frames are jointly and fixedly connected with a connecting frame; a positioner is installed at the bottom of the bottom plate, two lifting assemblies are arranged above the bottom plate, and two dismounting assemblies are arranged above the bottom plate. According to the anti-falling positioning device for high-place operation, the lifting assembly is arranged, specifically, the motor is started to drive the four moving blocks to move, the height of the breast board can be adjusted by controlling the moving distance of the moving blocks, and therefore the height of the breast board can be matched with the height of a worker; and when the hanging basket needs to be maintained, the height-adjustable breast boards can increase the operation space of the maintenance personnel, and the maintenance difficulty is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of construction equipment technology, and in particular to a high-altitude operation anti-fall positioning device. Background Technology

[0002] Suspended platforms are essential equipment for high-altitude operations in construction projects, widely used in curtain wall installation, exterior wall cleaning, and other fields. They are suspended from buildings or structures via a cantilever mechanism, and a lifting mechanism drives the suspended platform, which moves up and down along the facade of the building or structure via steel cables, providing a working platform for operators.

[0003] Most existing safety railings have a fixed height that cannot be adjusted. When workers of different heights are working in the suspended platform, the fixed height railings may not provide sufficient protection. Taller workers may have their upper bodies extend beyond the railing, increasing the risk of falling. Moreover, when the suspended platform malfunctions and needs repair, the fixed height railings restrict the operating space of the repair personnel, increasing the difficulty of repairs. Therefore, we propose a fall protection positioning device for working at heights to solve the above problems. Utility Model Content

[0004] The main purpose of this utility model is to provide a high-altitude operation anti-fall positioning device, which can effectively solve the above problems.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A fall protection positioning device for working at height includes a base plate, two fixed frames are fixedly connected to the top of the base plate, a rotating door is rotatably connected to the inner surface of each of the two fixed frames, a connecting frame is fixedly connected to the bottom outer surface of the two fixed frames, a locator is installed at the bottom of the base plate, two lifting components are arranged above the base plate, and two disassembly components are arranged above the base plate.

[0007] Preferably, the two lifting components are arranged symmetrically about the center of the base plate, and each lifting component includes a fence. The bottom of the fence contacts the top of the connecting frame, and a bidirectional threaded rod is rotatably connected to the inner wall of the fence.

[0008] Preferably, a motor is fixedly connected to the left end of the fence, and the output end of the motor is fixedly connected to the left end of a bidirectional threaded rod. Two U-shaped frames are fixedly connected to the inner wall of the bottom of the fence. The inner walls of the two U-shaped frames are rotatably connected to the outer surface of the bidirectional threaded rod on the same side. Two sets of bidirectional threads are provided on the outer surface of the bidirectional threaded rod.

[0009] Preferably, the inner walls of the left and right sides of the fence are fixedly connected to slide rails, the inner walls of the slide rails are slidably connected to rail panels, and the outer surface of the bidirectional threaded rod is threaded with four moving blocks.

[0010] Preferably, each of the four movable blocks has a rotating rod rotatably connected to its top inner wall, the outer surface of each of the four rotating rods is slidably connected to the top inner wall of the U-shaped frame on the same side, a connecting block is rotatably connected to the top outer surface of each of the four rotating rods, and the top of each of the four connecting blocks is fixedly connected to the bottom of the railing.

[0011] Preferably, the two disassembly components are arranged symmetrically with the center of the base plate as the front and rear. Each disassembly component includes two fixing blocks. The top of each fixing block is fixedly connected to the bottom of the connecting frame. The inner walls of the two fences are rotatably connected to a bidirectional threaded rod.

[0012] Preferably, a bevel gear is fixedly connected to the outer surface of the bidirectional threaded rod II, two circular holes are opened at the top of the connecting frame, a bevel gear II is meshed with the top of the bevel gear I, a rotating shaft is fixedly connected to the top of the bevel gear II, the outer surface of the rotating shaft is rotatably connected to the inner wall of the circular hole on the same side, and a rotating block is fixedly connected to the top of the rotating shaft.

[0013] Preferably, the outer surface of the bidirectional threaded rod is threaded with two sliding plates, the bottom of the connecting frame is provided with four sliding grooves, the top outer surfaces of the two sliding plates are slidably connected to the inner wall of the sliding groove on the same side, the ends of the two sliding plates that are far apart from each other are fixedly connected with insert rods, and the top of the connecting frame is provided with four round holes.

[0014] Preferably, positioning rods are provided on both the left and right sides of the rotating shaft. The tops of the two positioning rods are fixedly connected to the bottom of the fence on the same side. The outer surfaces of the bottoms of the two positioning rods are inserted into the inner walls of the circular holes on the same side. Insertion holes are provided on the outer surfaces of the two positioning rods. The inner walls of the two insertion holes are inserted into the outer surfaces of the insertion rods on the same side.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model, by setting up a lifting component, specifically by turning on the motor to drive four moving blocks to move, can adjust the height of the guardrail by controlling the distance the moving blocks move. This not only makes the height of the guardrail match the height of the workers, reducing the risk of workers falling, but also increases the operating space for maintenance personnel and reduces the difficulty of maintenance when the suspended platform needs maintenance.

[0017] 2. This utility model incorporates a disassembly component. Specifically, when the fence of the device is damaged, rotating the corresponding rotating block counterclockwise can cause the two sliding plates to move closer to each other. After the insertion rod moves a certain distance, its outer surface will separate from the inner wall of the corresponding insertion hole, thus releasing the restriction on the positioning rod and allowing the fence to be removed for replacement. This eliminates the need for complete disassembly of the suspended basket body, avoiding problems such as loose screws and fatigue cracking of welding points caused by repeated disassembly and assembly. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the overall structure of the fence of this utility model;

[0020] Figure 3 This is a schematic diagram of the front sectional view of the fence of this utility model;

[0021] Figure 4 This is a schematic diagram of the overall structure of the U-shaped frame of this utility model;

[0022] Figure 5 This is a schematic diagram of the overall structure of the positioning rod of this utility model.

[0023] In the diagram: 1. Base plate; 11. Fixing frame; 12. Revolving door; 13. Connecting frame; 2. Lifting assembly; 21. Fence; 22. Double-sided threaded rod one; 221. Motor; 23. U-shaped frame; 24. Moving block; 241. Rotating rod; 242. Connecting block; 25. Slide rail; 251. Balustrade; 3. Disassembly assembly; 31. Fixing block; 32. Double-sided threaded rod two; 321. Bevel gear one; 33. Rotating shaft; 331. Rotating block; 332. Bevel gear two; 34. Sliding plate; 341. Insert rod; 35. Positioning rod. Detailed Implementation

[0024] 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.

[0025] Example 1, as Figure 1-5 As shown, a high-altitude operation fall prevention positioning device includes a base plate 1. Two fixed frames 11 are fixedly connected to the top of the base plate 1. A rotating door 12 is rotatably connected to the inner surface of each of the two fixed frames 11. A connecting frame 13 is fixedly connected to the outer bottom surface of the two fixed frames 11. A locator is installed at the bottom of the base plate 1. Two lifting components 2 are arranged above the base plate 1. Two disassembly components 3 are arranged above the base plate 1.

[0026] Specifically, to achieve the goal of adjusting the height of the railing, please refer to... Figure 2and Figure 3 In this embodiment, the two lifting components 2 are arranged symmetrically with the center of the base plate 1 as the front and rear. The lifting component 2 includes a fence 21. The bottom of the fence 21 contacts the top of the connecting frame 13. The inner wall of the fence 21 is rotatably connected with a bidirectional threaded rod 22.

[0027] Further reading Figure 3 In this embodiment, a motor 221 is fixedly connected to the left end of the fence 21. The output end of the motor 221 is fixedly connected to the left end of the bidirectional threaded rod 22. Two U-shaped frames 23 are fixedly connected to the bottom inner wall of the fence 21. The inner walls of the two U-shaped frames 23 are rotatably connected to the outer surface of the bidirectional threaded rod 22 on the same side. Two sets of bidirectional threads are opened on the outer surface of the bidirectional threaded rod 22.

[0028] Further reading Figure 3 In this embodiment, the left and right inner walls of the fence 21 are fixedly connected to slide rails 25, the inner walls of the slide rails 25 are slidably connected to rail panels 251, and the outer surface of the bidirectional threaded rod 22 is threaded with four moving blocks 24.

[0029] Further reading Figure 4 In this embodiment, the top inner walls of the four movable blocks 24 are rotatably connected to rotating rods 241, the outer surfaces of the four rotating rods 241 are slidably connected to the top inner walls of the U-shaped frame 23 on the same side, the top outer surfaces of the four rotating rods 241 are rotatably connected to connecting blocks 242, and the tops of the four connecting blocks 242 are fixedly connected to the bottom of the railing 251.

[0030] During implementation, when staff use the device, the height of the two guardrails 251 is adjusted according to the staff's height. First, the two motors 221 are turned on, driving the corresponding bidirectional threaded rods 22 to rotate clockwise. As the bidirectional threaded rods 22 rotate clockwise, they drive the two moving blocks 24 on the left and the two moving blocks 24 on the right to move closer to each other. When the moving blocks 24 move, they drive the rotating rod 241 to rotate. When the rotating rod 241 rotates, it pushes the connecting block 242 to move upward. When the rotating rod 241 moves upward, it pushes the guardrails 251 to slide upward in the inner walls of the corresponding two slide rails 25. By controlling the distance the moving blocks 24 move, the height of the guardrails 251 can be adjusted. This not only ensures that the height of the guardrails 251 matches the staff's height, reducing the risk of falls, but also, when the suspended platform needs maintenance, the adjustable height of the guardrails 251 increases the operating space for maintenance personnel and reduces the difficulty of maintenance.

[0031] Example 2: This example is based on Example 1 and includes a disassembly component.

[0032] Specifically, in order to achieve the goal of being able to dismantle damaged fences individually, see [link / reference]. Figure 2 and Figure 5 In this embodiment, the two disassembly components 3 are arranged symmetrically with the center of the base plate 1 as the front and rear. The disassembly component 3 includes two fixing blocks 31. The top of the two fixing blocks 31 is fixedly connected to the bottom of the connecting frame 13. The inner walls of the two fences 21 are rotatably connected to a bidirectional threaded rod 32.

[0033] Further reading Figure 5 In this embodiment, a bevel gear 321 is fixedly connected to the outer surface of the bidirectional threaded rod 32. Two circular holes are opened at the top of the connecting frame 13. A bevel gear 332 is meshed with the top of the bevel gear 321. A rotating shaft 33 is fixedly connected to the top of the bevel gear 332. The outer surface of the rotating shaft 33 is rotatably connected to the inner wall of the circular hole on the same side. A rotating block 331 is fixedly connected to the top of the rotating shaft 33.

[0034] During implementation, when the fence 21 of the device is damaged, the corresponding rotating block 331 is rotated counterclockwise to drive the rotating shaft 33 to rotate. While the rotating shaft 33 rotates counterclockwise, it will drive the bevel gear 321 to rotate clockwise through the bevel gear 332. When the bevel gear 321 rotates, it will drive the bidirectional threaded rod 32 to rotate in the inner wall of the two fixed blocks 31.

[0035] Further reading Figure 5 In this embodiment, the outer surface of the bidirectional threaded rod 32 is threaded with two sliding plates 34, the bottom of the connecting frame 13 is provided with four sliding grooves, the top outer surfaces of the two sliding plates 34 are slidably connected to the inner wall of the sliding groove on the same side, the ends of the two sliding plates 34 that are far apart from each other are fixedly connected with insert rods 341, and the top of the connecting frame 13 is provided with four round holes.

[0036] Further reading Figure 5 In this embodiment, positioning rods 35 are provided on both the left and right sides of the rotating shaft 33. The tops of the two positioning rods 35 are fixedly connected to the bottom of the fence 21 on the same side. The outer surfaces of the bottoms of the two positioning rods 35 are inserted into the inner walls of the circular holes on the same side. Insertion holes are provided on the outer surfaces of the two positioning rods 35. The inner walls of the two insertion holes are inserted into the outer surfaces of the insertion rods 341 on the same side.

[0037] During implementation, when the bidirectional threaded rod 32 rotates clockwise, it will cause the two sliding plates 34 to move closer to each other. When the sliding plates 34 move, they will cause the insertion rod 341 to move. When the insertion rod 341 moves a certain distance, its outer surface will separate from the inner wall of the corresponding insertion hole, which can release the restriction on the positioning rod 35 and allow the fence 21 to be removed and replaced without disassembling the entire suspended basket body, thus avoiding problems such as loose screws and fatigue cracking of welding points caused by repeated disassembly and assembly.

[0038] The working principle of this utility model is as follows: When the operator uses the device, the height of the two guardrails 251 is adjusted according to the operator's height. First, the two motors 221 are turned on to drive the corresponding bidirectional threaded rods 22 to rotate clockwise. As the bidirectional threaded rods 22 rotate clockwise, they will drive the two moving blocks 24 on the left and the two moving blocks 24 on the right to move closer to each other. When the moving blocks 24 move, they will drive the rotating rod 241 to rotate. When the rotating rod 241 rotates, it will push the connecting block 242 to move upward. When the rotating rod 241 moves upward, it will push the guardrails 251 to slide upward in the inner walls of the corresponding two slide rails 25. By controlling the distance that the moving blocks 24 move, the height of the guardrails 251 can be adjusted. This not only makes the height of the guardrails 251 match the operator's height, reducing the risk of falling, but also increases the operating space for maintenance personnel and reduces the difficulty of maintenance when the suspended platform needs maintenance.

[0039] When the enclosure 21 of the device is damaged, the corresponding rotating block 331 is rotated counterclockwise to drive the rotating shaft 33 to rotate. While the rotating shaft 33 rotates counterclockwise, it drives the first bevel gear 321 to rotate clockwise through the second bevel gear 332. When the first bevel gear 321 rotates, it drives the second bidirectional threaded rod 32 to rotate in the inner wall of the two fixed blocks 31. When the second bidirectional threaded rod 32 rotates clockwise, it drives the two sliding plates 34 to move closer to each other. When the sliding plates 34 move, they drive the insertion rod 341 to move. When the insertion rod 341 moves a certain distance, its outer surface will separate from the inner wall of the corresponding insertion hole, which can release the restriction on the positioning rod 35 and allow the enclosure 21 to be removed for replacement without disassembling the entire basket body, thus avoiding problems such as loose screws and fatigue cracking of welding points caused by repeated disassembly and assembly.

[0040] 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 embodiments and descriptions in the specification 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 the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fall protection positioning device for working at height, comprising a base plate (1), wherein two fixing frames (11) are fixedly connected to the top of the base plate (1), and a rotating door (12) is rotatably connected to the inner surface of each of the two fixing frames (11), and a connecting frame (13) is fixedly connected to the outer surface of the bottom of the two fixing frames (11), characterized in that: A locator is installed at the bottom of the base plate (1), two lifting components (2) are provided above the base plate (1), and two disassembly components (3) are provided above the base plate (1); The two lifting components (2) are arranged symmetrically with the center of the base plate (1) as the front and rear. The lifting component (2) includes a fence (21). The bottom of the fence (21) contacts the top of the connecting frame (13). A bidirectional threaded rod (22) is rotatably connected to the inner wall of the fence (21).

2. The high-altitude operation fall prevention positioning device according to claim 1, characterized in that: A motor (221) is fixedly connected to the left end of the fence (21). The output end of the motor (221) is fixedly connected to the left end of the bidirectional threaded rod (22). Two U-shaped frames (23) are fixedly connected to the inner wall of the bottom of the fence (21). The inner walls of the two U-shaped frames (23) are rotatably connected to the outer surface of the bidirectional threaded rod (22) on the same side. Two sets of bidirectional threads are opened on the outer surface of the bidirectional threaded rod (22).

3. The high-altitude operation fall prevention positioning device according to claim 2, characterized in that: The fence (21) has slide rails (25) fixedly connected to the inner walls of the left and right sides. The inner walls of the slide rails (25) are slidably connected to the rail panels (251). The outer surface of the bidirectional threaded rod (22) is threaded with four moving blocks (24).

4. The high-altitude operation fall protection positioning device according to claim 3, characterized in that: The top inner walls of the four movable blocks (24) are rotatably connected to rotating rods (241), the outer surfaces of the four rotating rods (241) are slidably connected to the top inner walls of the U-shaped frame (23) on the same side, the top outer surfaces of the four rotating rods (241) are rotatably connected to connecting blocks (242), and the tops of the four connecting blocks (242) are fixedly connected to the bottom of the railing (251).

5. A fall protection positioning device for working at heights according to claim 1, characterized in that: The two disassembly components (3) are arranged symmetrically with the center of the base plate (1) as the front and rear. The disassembly components (3) include two fixing blocks (31). The top of the two fixing blocks (31) is fixedly connected to the bottom of the connecting frame (13). The inner walls of the two fences (21) are rotatably connected to a two-way threaded rod (32).

6. A fall protection positioning device for working at heights according to claim 5, characterized in that: The outer surface of the bidirectional threaded rod 2 (32) is fixedly connected to a bevel gear 1 (321). The top of the connecting frame (13) has two round holes. The top of the bevel gear 1 (321) is meshed with a bevel gear 2 (332). The top of the bevel gear 2 (332) is fixedly connected to a rotating shaft (33). The outer surface of the rotating shaft (33) is rotatably connected to the inner wall of the round hole on the same side. The top of the rotating shaft (33) is fixedly connected to a rotating block (331).

7. A fall protection positioning device for working at heights according to claim 6, characterized in that: The outer surface of the bidirectional threaded rod (32) is threaded with two sliding plates (34). The bottom of the connecting frame (13) is provided with four sliding grooves. The top outer surfaces of the two sliding plates (34) are slidably connected to the inner wall of the sliding groove on the same side. The ends of the two sliding plates (34) that are far apart from each other are fixedly connected with insert rods (341). The top of the connecting frame (13) is provided with four round holes.

8. A fall protection positioning device for working at heights according to claim 7, characterized in that: Positioning rods (35) are provided on the left and right sides of the rotating shaft (33). The tops of the two positioning rods (35) are fixedly connected to the bottom of the fence (21) on the same side. The outer surfaces of the bottoms of the two positioning rods (35) are inserted into the inner walls of the two circular holes on the same side. The outer surfaces of the two positioning rods (35) are provided with insertion holes. The inner walls of the two insertion holes are inserted into the outer surfaces of the insertion rods (341) on the same side.