Electromechanical collaborative building high-altitude operation safety belt automatic winding and unwinding device

Abstract

The invention discloses an electromechanical cooperative building aerial work safety belt automatic winding and unwinding device, and relates to the technical field of building aerial work safety, and the technical scheme is that the device comprises a safety belt main body, a fixed frame, a winding and unwinding mechanism arranged on the fixed frame and a buffer mechanism; the retracting and releasing mechanism, the buffering mechanism and the safety belt body are connected through a safety rope. The winding and unwinding mechanism comprises a lead screw, a sliding block, two rhombic frames, a base plate and a safety rope fixing plate. C-shaped rope walking frames are arranged at the two ends of the outer wall of the fixed frame; the buffer mechanism comprises a shell and a retractor. The safety rope take-up and pay-off device has the beneficial effects that efficient and automatic take-up and pay-off of the safety rope are achieved through the synergistic effect that the motor drives the lead screw and the sliding block and in combination with the unique structure of the rhombic frame; by means of the design, the time and vigor of manually adjusting the safety rope by workers are remarkably shortened, and the efficiency of high-altitude operation is improved; and potential safety hazards caused by the fact that the safety rope is too long or too short are avoided through the winding and unwinding mechanism.

Description

Technical Field

[0001] This invention relates to the field of safety technology for high-altitude construction operations, and in particular to an electromechanical co-operated automatic retraction and deployment device for safety belts used in high-altitude construction operations. Background Technology

[0002] Safety harnesses for working at heights are indispensable safety equipment in construction, and their development has progressed from simple manual adjustment to semi-automatic adjustment. Early safety harnesses relied primarily on manual adjustment of the safety rope length. While simple, this method was inconvenient in practice, especially when frequently moving work positions. Manual adjustment was not only time-consuming but could also lead to the rope being too long or too short due to improper operation, increasing operational risks. With technological advancements, some automatic deployment and retraction devices have emerged. These devices achieve automatic adjustment of the safety rope through mechanical or simple electromechanical structures, but the degree of automation, adjustment accuracy, and cushioning protection effect in emergency situations still need improvement.

[0003] While existing technologies have improved the safety and efficiency of high-altitude operations to some extent, current automatic deployment and retrieval devices still have significant shortcomings. First, the deployment and retrieval mechanisms of existing devices mostly employ simple mechanical structures with low automation levels and insufficient adjustment precision, failing to meet the needs of complex operational scenarios. For example, some devices are prone to jamming or slippage during deployment and retrieval, preventing the safety rope from extending and retracting smoothly, thus affecting operational efficiency. Second, existing deployment and retrieval mechanisms exhibit poor structural stability during dynamic adjustments, making them susceptible to malfunctions due to mechanical vibration or impact, reducing the reliability and lifespan of the device.

[0004] More importantly, existing launching and receiving mechanisms lack effective buffer protection mechanisms in emergency situations. Once a fall accident occurs, they cannot effectively reduce the impact force, resulting in a still high safety risk.

[0005] How to solve the above problems is the research topic of this plan. Summary of the Invention

[0006] In order to achieve the above-mentioned objectives and address the above-mentioned technical problems, the present invention provides an electromechanical co-operational automatic retraction and deployment device for safety belts used in high-altitude construction operations.

[0007] The technical solution includes a seat belt body, a fixed frame, a retraction mechanism and a buffer mechanism mounted on the fixed frame; the retraction mechanism, the buffer mechanism and the seat belt body are connected by a safety rope. The take-up and release mechanism includes a lead screw, a slider, two rhomboid frames, pads set at two opposite apex corners of the rhomboid frames, and a safety rope fixing plate, all rotatably connected to the fixed frame. The fixed frame has a U-shaped rope-walking frame at both ends of its outer wall; The buffer mechanism includes a housing and a retractor disposed inside the housing.

[0008] The retractor automatically shrinks the length, reducing the need for manual winding and unwinding by staff.

[0009] Springs are fitted between the two sliders at the close end of the two rhomboid frames on the outer wall of the lead screw, and between the slider at the far end of the two rhomboid frames and the inner wall of the fixed frame.

[0010] The slider has a transverse through hole, through which the lead screw passes, and the threads of the lead screw and the slider are matched.

[0011] The rhomboid frame includes four connecting rods connected end to end, with the ends of adjacent connecting rods hinged together. The pads and safety rope fixing plates are set at two opposite apex corners of the rhomboid frame, and the sliders are set at the other two opposite apex corners.

[0012] A rotating rod is provided at the top of the slider, and the ends of the connecting rod are rotatably connected to the rotating rod respectively; The lead screw is rotatably connected to the inner wall of the fixed frame; The lead screw is provided with four thread segments and four sliders. The directions of adjacent thread segments are opposite, and each thread segment is matched with the thread of each slider.

[0013] The pad includes a vertical plate and a connecting horizontal plate disposed on one side of the upper and lower ends of the vertical plate. A connecting shaft is disposed at the connection point of the two connecting rods of the pad, and the two connecting horizontal plates are respectively hinged to the upper and lower ends of the connecting shaft. The safety rope fixing plate is fixedly installed at the bottom of the connecting horizontal plate located below.

[0014] The connecting cross plate has several evenly distributed rubber protrusions on its side wall facing the fixed frame. When the take-up and take-down mechanism releases the line, the rubber protrusions abut against the inner wall of the fixed frame.

[0015] One end of the safety rope is fixed to the safety rope fixing plate; The safety ropes at both ends of each diamond frame start from the safety rope fixing plate, pass through the side wall of the fixed frame, pass through the rope walking frame, gather from the middle outer wall of the rope walking frame and exit, and connect downwards to the buffer mechanism. The bottom end of the safety rope is fixedly connected to one end of the safety belt body.

[0016] The lead screw is driven to rotate by a motor, and the retractor is also driven by a motor. The motors of the lead screw and the retractor are electrically connected.

[0017] The safety belt body includes: a waist belt for forming a waist restraint ring; leg straps for forming leg support; and shoulder straps for forming back and chest support. The various parts of the safety belt body are fixedly connected by stitching, connectors, etc., to form a single integrated structure, providing comprehensive protection for the user during high-altitude operations. This is existing technology and will not be elaborated further.

[0018] The lead screw is driven to rotate by a motor, which is existing technology and will not be described in detail here.

[0019] The fixed frame can be fixedly installed on the work platform for high-altitude operations.

[0020] The beneficial effects of the technical solution provided by the embodiments of the present invention are as follows: (1) High-efficiency automatic retraction and release: Through the coordinated action of the motor-driven lead screw and slider, combined with the unique structure of the diamond frame, the safety rope can be retracted and released automatically. This design significantly reduces the time and effort required for workers to manually adjust the safety rope and improves the efficiency of high-altitude operations. (2) Precise adjustment: The diamond frame design of the retraction mechanism allows the safety rope to be precisely adjusted at different working heights, ensuring that the workers always maintain the best range of motion during the operation, while avoiding safety hazards caused by the safety rope being too long or too short. (3) Stable and reliable structure: The hinged connection of the rhomboid frame and the auxiliary effect of the spring make the retraction mechanism maintain structural stability during dynamic adjustment, reduce the risk of failure caused by mechanical vibration or impact, and improve the reliability and service life of the device. (4) Buffer protection in emergency situations: In an emergency, the retraction mechanism can respond quickly by driving the screw to rotate through the motor, causing the slider to move in opposite directions, tightening the safety rope, providing buffer protection, and ensuring the safety of the staff; this design not only plays a safety role in emergency situations, but also enhances the safety function of the safety belt in normal times. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention. Figure 1 .

[0022] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present invention. Figure 2 .

[0023] Figure 3 for Figure 2 A magnified view of part A.

[0024] Figure 4 This is a partial structural diagram of an embodiment of the present invention.

[0025] The attached figures are labeled as follows: 1. Safety belt body; 2. Fixing frame; 100. Safety rope; 301. Lead screw; 302. Sliding block; 303. Rhomboid frame; 304. Pad; 305. Safety rope fixing plate; 201. Rope walking frame; 401. Shell; 5. Spring; 3041. Vertical plate; 3042. Connecting horizontal plate; 3043. Rubber raised strip. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0028] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] Example 1 See Figures 1 to 4The present invention provides an electromechanical co-operated automatic retraction and deployment device for safety belts used in high-altitude construction operations, comprising a safety belt body 1, a fixed frame 2, a retraction and deployment mechanism and a buffer mechanism disposed on the fixed frame 2; the retraction and deployment mechanism, the buffer mechanism and the safety belt body 1 are connected by a safety rope 100. The launching and retracting mechanism includes a lead screw 301 rotatably connected to the fixed frame 2, a slider 302, two rhomboid frames 303, a pad 304 set at the two opposite apex corners of the rhomboid frames 303, and a safety rope fixing plate 305. The outer walls of the fixed frame 2 are equipped with U-shaped rope-walking frames 201 at both ends; The buffer mechanism includes a housing 401 and a retractor disposed inside the housing.

[0031] The retractor automatically shrinks the length, reducing the need for manual winding and unwinding by staff.

[0032] Springs 5 ​​are fitted between the two sliders 302 at the close end of the two rhomboid frames 303 on the outer wall of the lead screw 301, and between the sliders 302 at the far end of the two rhomboid frames 303 and the inner wall of the fixed frame 2.

[0033] The slider 302 has a transverse through hole, through which the lead screw 302 passes. The lead screw 301 and the slider 302 are threadedly matched.

[0034] The rhomboid frame 303 includes four connecting rods connected end to end, with the ends of adjacent connecting rods hinged together. A pad 304 and a safety rope fixing plate 305 are provided at two opposite apex corners of the rhomboid frame 303, and a slider 302 is provided at the other two opposite apex corners.

[0035] A rotating rod is provided at the top of the slider 302, and the ends of the connecting rods are rotatably connected to the rotating rod. The lead screw 301 is rotatably connected to the inner wall of the fixed frame 2; The lead screw 301 is provided with four thread segments and four sliders 302. The directions of adjacent thread segments are opposite, and each thread segment is matched with the thread of each slider 302.

[0036] The pad 304 includes a vertical plate 3041 and a connecting horizontal plate 3042 disposed on one side of the upper and lower ends of the vertical plate 3041. A connecting shaft is provided at the connection point of the two connecting rods of the pad 304, and the two connecting horizontal plates 3042 are respectively hinged to the upper and lower ends of the connecting shaft. A safety rope fixing plate 305 is fixedly installed at the bottom of the connecting horizontal plate 3042 located below.

[0037] Several evenly distributed rubber protrusions 3043 are provided on the side wall of the connecting horizontal plate 3042 facing the fixed frame 2; When the take-up and release mechanism releases the line, the rubber protrusion 3043 abuts against the inner wall of the fixed frame 2.

[0038] One end of the safety rope 100 is fixed to the safety rope fixing plate 305; Safety ropes 100 at both ends of each diamond frame 303 start from the safety rope fixing plate 305, pass through the side wall of the fixing frame 2, pass through the rope walking frame 201, gather from the middle outer wall of the rope walking frame 201 and pass out, and connect downward to the buffer mechanism. The bottom end of the safety rope 100 is fixedly connected to one end of the safety belt body 1.

[0039] The lead screw is driven to rotate by a motor, and the retractor is driven by a motor. The motors of the lead screw and the retractor are electrically connected.

[0040] The main body of the safety belt includes: a lap belt for waist restraint; leg straps for leg support; and shoulder straps for back and chest support. The various parts of the safety belt are connected by stitching, connectors, etc., to form a single structure, providing comprehensive protection for the user during high-altitude operations. This is existing technology and will not be elaborated further.

[0041] The lead screw is driven to rotate by a motor, which is existing technology and will not be described in detail here.

[0042] The fixed frame 2 can be fixedly installed on the work platform for high-altitude operations.

[0043] When using this invention, first install the fixed frame 2 in a suitable position on the aerial work platform to ensure the device is stable. The worker wears the safety harness body 1 and is connected to the device via the safety rope 100. During operation, the retractor automatically adjusts the length of the safety rope 100 to ensure the worker can move freely and safely.

[0044] In case of an emergency, the safety rope may suddenly tighten. The motor of the lead screw and the retractor is electrically connected, and the lead screw starts to rotate, which drives the two sliders 302 of each diamond frame 303 to move in opposite directions, thereby tightening the safety rope in the opposite direction, providing buffer protection in emergency situations and ensuring the safety of the staff. Before normal operation, the two sliders 302 of each rhomboid frame 303 move towards each other, and the rubber protrusions 3043 on the two pads 304 abut against the inner wall of the fixed frame 2, increasing friction and support, and ensuring the safety of the seat belt.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electromechanical co-operated automatic retraction and deployment device for safety belts used in high-altitude construction operations, characterized in that, It includes a seat belt main body (1), a fixed frame (2), a retracting and deploying mechanism provided on the fixed frame (2), and a buffer mechanism; the retracting and deploying mechanism, the buffer mechanism, and the seat belt main body (1) are connected by a safety rope (100); The retracting and deploying mechanism includes a lead screw (301) rotatably connected to the fixed frame (2), a slider (302), two diamond frames (303), cushion plates (304) provided at two opposite vertex angles of the diamond frame (303), and a safety rope fixing plate (305); At both ends of the outer wall of the fixed frame (2), a U-shaped rope guiding frame (201) is provided; The buffer mechanism includes a housing (401) and a reel provided inside the housing.

2. The electromechanical coordinating automatic retraction and deployment device for safety belts used in high-altitude construction operations according to claim 1, characterized in that, Between two sliders (302) at one end of the two diamond frames (303) close to each other on the outer wall of the lead screw (301), and between the slider (302) at the end of the two diamond frames (303) far from each other and the inner wall of the fixed frame (2), springs (5) are sleeved.

3. The electromechanical coordinating automatic retraction and deployment device for safety belts used in high-altitude construction operations according to claim 2, characterized in that, The slider (302) is provided with a horizontal through hole, the lead screw (302) passes through the slider (302), and the lead screw (301) and the slider (302) are in threaded match.

4. The electromechanical coordinating automatic retraction and deployment device for safety belts used in high-altitude construction operations according to claim 3, characterized in that, The diamond frame (303) includes four connecting rods connected end to end in sequence, the ends of adjacent connecting rods are hinged, the cushion plates (304) and the safety rope fixing plate (305) are provided at two opposite vertex angles of the diamond frame (303), and the sliders (302) are provided at the other two opposite vertex angles.

5. The electromechanical coordinating automatic retraction and deployment device for safety belts used in high-altitude construction operations according to claim 4, characterized in that, A rotating rod is provided at the top of the slider (302), and the ends of the connecting rods are respectively rotatably connected to the rotating rod; The lead screw (301) is rotatably connected to the inner wall of the fixed frame (2); There are four threads and four sliders (302) provided on the lead screw (301), the directions of adjacent two threads are opposite, and each thread is in threaded match with each slider (302).

6. The electromechanical coordinating automatic retraction and deployment device for safety belts used in high-altitude construction operations according to claim 5, characterized in that, The cushion plate (304) includes a vertical plate (3041) and connecting horizontal plates (3042) provided on one side of the upper and lower ends of the vertical plate (3041). A connecting shaft is provided at the connection of the two connecting rods where the cushion plate (304) is provided, and the two connecting horizontal plates (3042) are respectively hinged to the upper and lower ends of the connecting shaft; The safety rope fixing plate (305) is fixedly provided at the bottom of the lower connecting horizontal plate (3042).

7. The electromechanical co-operated automatic retraction and deployment device for safety belts used in high-altitude construction operations according to claim 6, characterized in that, A number of uniformly distributed rubber raised strips (3043) are provided on the side wall of the connecting horizontal plate (3042) facing the fixed frame (2); When the retracting and deploying mechanism pays out the line, the rubber raised strips (3043) abut against the inner wall of the fixed frame (2).

8. The electromechanical coordinating automatic retraction and deployment device for safety belts used in high-altitude construction operations according to claim 6, characterized in that, One end of the safety rope (100) is fixed to the safety rope fixing plate (305); The safety ropes (100) at both ends of each diamond frame (303) start from the safety rope fixing plate (305), pass through the side wall of the fixed frame (2), pass through the rope guiding frame (201), converge and pass out from the middle outer wall of the rope guiding frame (201), are connected downward to the buffer mechanism, and the bottom end of the safety rope (100) is fixedly connected to one end of the seat belt main body (1).

9. The electromechanical coordinating automatic retraction and deployment device for safety belts used in high-altitude construction operations according to claim 8, characterized in that, The lead screw is driven to rotate by a motor, the reel is driven by a motor, and the motors of the lead screw and the reel are electrically connected.

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