Lifting operation platform with protection function

By designing anti-fall components on the lifting work platform and utilizing the cooperation of the pressure bar and the rotating bar, the problem of insufficient guardrail height was solved, providing additional protection for construction workers, reducing the risk of accidental falls, and improving safety.

CN224149142UActive Publication Date: 2026-04-21BEIJING ZHONGGU DINGCHENG CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING ZHONGGU DINGCHENG CONSTR ENG CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing lifting work platforms have limited guardrail height, which causes construction workers to lose their center of gravity during construction, increasing the risk of accidental falls.

Method used

A fall protection component was designed, including a pressure bar and a rotating bar. A spring-driven slider rotates the rotating bar so that the pressure bar abuts against the back of the knee, providing additional protection. The component also adapts to construction workers of different heights through a distance sensor and adaptive components.

Benefits of technology

This effectively avoids the risk of falls caused by changes in the center of gravity among construction workers, thus improving construction safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of building construction, in particular to a lifting operation platform with a protection function. The protective fence is arranged at the upper end of the platform; the anti-falling assemblies are symmetrically arranged in the platform, each anti-falling assembly comprises an abutting rod and two rotating rods fixedly connected with the abutting rod, and after a constructor enters the inner sides of the abutting rods and the rotating rods, the abutting rods are driven to rotate till abutting against the popliteal fossa of the human body. In order to solve the problem that in the prior art, the height of a protective fence is relatively limited, so that measures for preventing constructors from accidentally falling cannot be provided, when the constructors enter the inner side of the abutting rod, the sliding block ascends under the elastic force of the spring by driving the operation piece; the sliding block drives the rotating rod and the abutting rod to rotate through the connecting rod so that the abutting rod can abut against the popliteal fossa of the human body, additional protection measures are provided, and the risk of falling caused by the gravity center change of the human body is avoided to a great extent.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a lifting operation platform with protective functions. Background Technology

[0002] Lifting work platforms are used in exterior wall construction, interior decoration, equipment installation and maintenance. Existing lifting platforms typically include a lifting drive system, a platform mounted on the drive system, and safety railings on the platform. These railings are relatively limited in height. When workers are working on the wall while leaning against the railing, their knees unconsciously rest against the inside of the railing, while their torso and arms extend beyond it. This posture causes the worker's center of gravity to lean forward, and as the posture and tools change, the center of gravity becomes unstable, significantly increasing the risk of accidental falls from the lifting work platform, resulting in relatively low safety. Utility Model Content

[0003] This application provides a lifting work platform with protective functions, which solves the problem that the height of the guardrails in the prior art is relatively limited and cannot provide measures to prevent construction workers from accidentally falling.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model provides a lifting work platform with protective functions, including:

[0006] platform;

[0007] The guardrail is installed at the top of the platform;

[0008] The anti-fall component is symmetrically arranged within the platform. The anti-fall component includes a pressure bar and two rotating rods fixedly connected to the pressure bar. After the construction personnel enter the inside of the pressure bar and the rotating rods, the pressure bar is driven to rotate until it abuts against the popliteal fossa of the human body.

[0009] Furthermore, the anti-fall component also includes a groove formed at the upper end of the platform. The groove is composed of a groove A and two grooves B communicating with the groove A. The groove A and the groove B are respectively provided with the pressure rod and the rotating rod. The rotating rod is rotatably connected to the inner wall of the groove near the guardrail.

[0010] Furthermore, the anti-fall component also includes a vertical groove on the inner wall of the guardrail near the groove B. The top of the vertical groove has a hole, which includes a threaded groove and a rod groove that are connected vertically. The inner diameter of the rod groove is smaller than that of the threaded groove. A slider is slidably connected in the vertical groove. An operating component is connected to the upper end of the slider. The operating component consists of a vertical rod and a stud that are rotatably connected vertically. The stud is threadedly connected to the threaded groove. A spring is provided on the outside of the vertical rod, and the two ends of the spring abut against the inner wall of the vertical groove.

[0011] Furthermore, the upper end of the stud protrudes from the guardrail and is fixedly connected with a torsion lug.

[0012] Furthermore, when the stud is threadedly connected to the threaded groove, the spring is in a stretched state.

[0013] Furthermore, it also includes an adaptive component, which includes: a distance sensor embedded at the upper end of the platform and near the guardrail; the distance sensor is electrically connected to a control component; the control component is signal-connected to a telescopic component; the telescopic component is embedded at one end of a rotating rod; and the output end of the telescopic component is fixed to a pressure rod.

[0014] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0015] To address the problem that existing safety railings are relatively limited in height and cannot provide adequate protection against accidental falls, this lifting platform utilizes a mechanism that, when a worker enters the area inside the support bar, drives a slider that rises under the elastic force of a spring. The slider, via a connecting rod, rotates the rotating rod and the support bar, causing the support bar to press against the worker's popliteal fossa, providing additional protection and significantly reducing the risk of falls due to changes in the worker's center of gravity. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0019] Figure 3 This is a cross-sectional view of the present invention;

[0020] Figure 4 This is a partial schematic diagram illustrating the cooperation between the present invention and construction personnel.

[0021] Reference numerals: 1. Platform; 2. Guardrail; 21. Entrance / Exit; 22. Self-closing door; 3. Anti-fall component; 31. Groove; 32. Vertical groove; 33. Hole groove; 331. Rod groove; 332. Screw groove; 34. Pressing rod; 35. Rotating rod; 36. Connecting rod; 37. Slider; 38. Spring; 39. Operating component; 391. Vertical rod; 392. Stud; 393. Torsion lug; 4. Adaptive component; 41. Distance sensor; 42. Telescopic component. Detailed Implementation

[0022] To address the problem that existing safety railings, due to their limited height, cannot provide adequate protection against accidental falls, this lifting platform, when a worker enters the inner side of the pressure bar 34, operates the control component 39 to raise the slider 37 under the elastic force of the spring 38. The slider 37, via the connecting rod 36, drives the rotating rod 35 and the pressure bar 34 to rotate, causing the pressure bar 34 to press against the worker's popliteal fossa (see reference). Figure 4 This provides additional protection, greatly reducing the risk of falls due to changes in the body's center of gravity.

[0023] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0024] Example: Refer to Figures 1 to 4 A lifting work platform with protective functions includes a platform 1, a guardrail 2 set on the upper part of the platform 1, and an anti-fall component 3. Through the cooperation of the platform 1, the guardrail 2 and the anti-fall component 3, the anti-fall component 3 provides additional knee protection for construction workers when they approach the guardrail 2.

[0025] The guardrail 2 has an entrance / exit 21, and a self-closing door 22 is installed inside the entrance / exit 21. The self-closing door 22 can reset itself and adopts the existing reset structure.

[0026] The anti-fall component 3 is symmetrically arranged inside the platform 1. The anti-fall component 3 includes a pressure bar 34 and two rotating rods 35 fixedly connected to the pressure bar 34. After the construction personnel enter the inside of the pressure bar 34 and the rotating rods 35, the pressure bar 34 is driven to rotate until it abuts against the popliteal fossa of the human body. Specifically, the anti-fall component 3 also includes a groove 31 opened at the upper end of the platform 1. The groove 31 is composed of a groove A and two grooves B connected to the groove A. The pressure bar 34 and the rotating rods 35 are respectively installed in the groove A and the groove B. The rotating rods 35 are rotatably connected to the inner wall of the groove 31 near the guardrail 2. When not in the construction state, the rotating rods 35 and the pressure bar 34 are retracted into the groove 31 to avoid protruding from the upper surface of the platform 1 and to avoid obstructing movement.

[0027] The anti-fall component 3 also includes a vertical groove 32 located on the inner wall of the guardrail 2 near the groove B. The top of the vertical groove 32 has a hole 33. The hole 33 includes a threaded groove 332 and a rod groove 331 that are connected vertically. The inner diameter of the rod groove 331 is smaller than the inner diameter of the threaded groove 332. The vertical rod 391 can pass through the threaded groove 332 without obstruction. A slider 37 is slidably connected inside the vertical groove 32. The slider 37 adopts a limiting shape structure. An operating member 39 is connected to the upper end of the slider 37. The operating member 39 is composed of a vertical rod 391 and a stud 392 that are rotatably connected vertically. The stud 392 is threadedly connected to the threaded groove 332.

[0028] A spring 38 is provided on the outer side of the vertical rod 391, and the two ends of the spring 38 abut against the inner wall of the vertical groove 32, as shown in the reference. Figure 2 It can be seen that when the stud 392 and the screw groove 332 are connected by threads, the spring 38 is in a stretched state, which is the unconstructed state. The connecting rod 36 tends to be horizontal, which also avoids obstructing human movement.

[0029] The upper end of the stud 392 protrudes from the guardrail 2 and is fixedly connected to a twisting lug 393. Construction workers can rotate the stud 392 through the twisting lug 393 to make it disengage or screw it into the threaded groove 332.

[0030] Based on the above settings, in the non-construction state, the stud 392 is threadedly connected to the screw groove 332, the spring 38 is in a stretched state, and the rotating rod 35 and the pressing rod 34 are retracted into the groove 31. When the construction personnel enter the construction area near the guardrail 2, the construction personnel rotate the screw groove 332 by twisting the ear 393, causing the vertical rod 391 to pop out under the elastic force of the spring 38. The vertical rod 391 drives the slider 37 to rise, and the slider 37 drives the rotating rod 35 and the pressing rod 34 to rotate through the connecting rod 36, so that the pressing rod 34 can abut against and protect the popliteal fossa of the human body.

[0031] The above embodiments are applicable to construction workers within a certain height range. However, since construction workers vary in height, in addition to the above embodiments, an adaptive component 4 is also included. The adaptive component 4 includes: a distance sensor 41 embedded at the upper end of the platform 1 and near the guardrail 2; the distance sensor 41 is electrically connected to a control component; the control component is signal-connected to a telescopic component 42; the telescopic component 42 is embedded at one end of the rotating rod 35; and the output end of the telescopic component 42 is fixed to the pressure rod 34. (Refer to...) Figure 4 When the construction worker's knees are pressed against the inner wall of the guardrail 2, the distance sensor 41 monitors the distance between the construction worker's knees and transmits the data to the control unit. The control unit controls the telescopic component 42 to extend and retract the pressure bar 34 according to the distance value, so that the pressure bar 34 can be pressed against the back of the knees of construction workers of different heights, thereby improving the applicability of construction.

[0032] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0033] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A work platform with a protection function, characterized in that, include: Platform (1); A guardrail (2) is installed at the top of the platform (1); Fall protection component (3) is symmetrically arranged inside the platform (1). The fall protection component (3) includes a pressure bar (34) and two rotating rods (35) fixedly connected to the pressure bar (34). After the construction personnel enter the inside of the pressure bar (34) and the rotating rods (35), the pressure bar (34) is driven to rotate until it abuts against the popliteal fossa of the human body.

2. The aerial work platform with protection function according to claim 1, characterized in that, The anti-fall component (3) also includes a groove (31) opened at the upper end of the platform (1). The groove (31) is composed of a groove A and two grooves B that communicate with the groove A. The groove A and the groove B are respectively provided with the pressure rod (34) and the rotating rod (35). The rotating rod (35) is rotatably connected to the inner wall of the groove (31) near the guardrail (2).

3. The aerial work platform with protection function according to claim 1, characterized in that, The anti-fall component (3) also includes a vertical groove (32) opened on the inner wall of the guardrail (2) near the groove B. The top of the vertical groove (32) is provided with a hole (33). The hole (33) includes a threaded groove (332) and a rod groove (331) that are connected vertically. The inner diameter of the rod groove (331) is smaller than the inner diameter of the threaded groove (332). A slider (37) is slidably connected in the vertical groove (32). An operating component (39) is connected to the upper end of the slider (37). The operating component (39) is composed of a vertical rod (391) and a stud (392) that are rotatably connected vertically. The stud (392) is threadedly connected to the threaded groove (332). A spring (38) is provided on the outside of the vertical rod (391). The two ends of the spring (38) abut against the inner wall of the vertical groove (32).

4. The aerial work platform with protection function according to claim 3, characterized in that, The upper end of the stud (392) protrudes from the guardrail (2) and is fixedly connected to a torsion lug (393).

5. The aerial work platform with protection function according to claim 3, characterized in that, When the stud (392) is threadedly connected to the threaded groove (332), the spring (38) is in a stretched state.

6. The aerial work platform with protection function according to claim 1, characterized in that, It also includes an adaptive component (4), which includes: a distance sensor (41) embedded at the upper end of the platform (1) and near the guardrail (2), the distance sensor (41) being electrically connected to a control component, the control component being signal-connected to a telescopic component (42), the telescopic component (42) being embedded at one end of a rotating rod (35), and the output end of the telescopic component (42) being fixed to a pressure rod (34).