A fall protection device for safety protection

Abstract

The utility model discloses a kind of anti-falling devices for safety protection, it is related to safety protection technical field, including mounting plate, anti-falling plate, retraction mechanism and cooperation mechanism, retraction mechanism is located on the upper end of mounting plate, including servo motor, transmission rod, synchronous belt, transmission shaft and telescopic belt, cooperation mechanism is located on the upper end of anti-falling plate, including connecting seat and telescopic rod, the utility model is by being provided with retraction mechanism, power and transmission component are placed in protective cover, the problem of traditional device transmission exposure, unstable operation is solved, the controllable release and stable recovery of anti-falling plate are realized;By setting cooperation mechanism, using the hinged structure of telescopic rod and connecting seat, the deflection, jam problem caused by the single-point stress of anti-falling plate is solved, the stability and synchronism of unfolding process are improved, overall structure is driven by servo motor, synchronous belt transmission drives telescopic belt to retract, and then control anti-falling plate to overturn open-close, telescopic rod provides auxiliary support and pullback power simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of safety protection technology, specifically to a fall arrest device for safety protection. Background Technology

[0002] In high-altitude work environments such as construction sites, temporary fall arrest devices are often required to ensure the safety of construction workers and equipment. Traditional fall arrest structures mostly adopt purely mechanical hinges or manual deployment methods, relying on gravity to fall naturally or manual pulling to deploy the protective plate, lacking an effective power drive and motion control mechanism.

[0003] Some fall arrestor components rely solely on wire ropes and winches to drive the fall arrestor plate. While they possess some automatic deployment and retrieval capabilities, they lack auxiliary support structures. During the deployment process, uneven force can easily cause the plate to tilt and collide with surrounding facilities. During retrieval, the lack of guide support can lead to uneven folding and jamming, resulting in high maintenance frequency and poor reliability. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a fall arrest device for safety protection, which has the advantages of smooth operation and precise control, and solves the problem of fall arrest plate swaying and jamming.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fall arrestor for safety protection, wherein the fall arrestor assembly includes a mounting plate and a fall arrestor plate, and the surface of the mounting plate and the surface of the fall arrestor plate are rotatably connected by a rotating shaft; The upper end of the mounting plate is provided with a retraction mechanism, and the upper end of the retractable anti-fall plate is provided with a cooperating mechanism. The retraction mechanism is released when the anti-fall plate needs to be used, and the cooperating mechanism is used to assist the telescopic mechanism in retracting.

[0006] In a preferred embodiment of this invention, the retraction mechanism includes a protective cover, a servo motor, a transmission rod, a bearing seat, a synchronous belt, a transmission shaft, a telescopic belt, a fixed seat, and a fixed shaft. The surface of the protective cover is fixedly connected to the surface of the servo motor, the output end of the servo motor is fixedly connected to the surface of the transmission rod, the surface of the transmission rod is rotatably connected to the inner wall of the bearing seat, the inner side of the synchronous belt is drively connected to the surface of the transmission shaft, the surface of the transmission shaft is fixedly connected to the rear end surface of the telescopic belt, and the fixed shaft is disposed at the upper end of the fall arrestor plate.

[0007] In a preferred embodiment of this invention, the surface of the protective cover is fixedly connected to the surface of the mounting plate, the surface of the transmission rod is rotatably connected to the inner wall of the protective cover, and the surface of the bearing seat is fixedly connected to the surface of the mounting plate.

[0008] In a preferred embodiment of this invention, the surface of the transmission rod is connected to the inner side of the synchronous belt, the surface of the transmission rod is rotatably connected to the inner wall of the upper end of the mounting plate, and the surface of the transmission shaft is rotatably connected to the inner wall of the mounting plate.

[0009] In a preferred embodiment of this invention, the synchronous belt is disposed inside the protective cover, the surface of the fixed base is fixedly connected to the surface of the mounting plate, the surface of the fixed shaft is fixedly connected to the upper end of the fall arrestor, and the surface of the telescopic belt is fixedly connected to the surface of the fixed shaft.

[0010] In a preferred embodiment of this invention, the mating mechanism includes a connecting seat and a telescopic rod, with the inner walls of the two connecting seats respectively rotatably connected to both ends of the telescopic rod via a rotating shaft.

[0011] As a preferred embodiment of this invention, the two connecting seats are respectively fixedly connected to the surfaces of the mounting plate and the fall arrestor plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model solves the problems of unstable deployment and retrieval, low control precision, and insufficient safety and reliability of traditional high-altitude fall protection devices by setting up fall protection components and their linkage mechanisms, thereby achieving the effect of automatic and controllable release and stable retrieval of fall protection plates and improving operational safety.

[0013] 2. By setting up a retraction mechanism, this utility model houses the servo motor, synchronous belt, transmission shaft, and telescopic belt inside a protective cover, solving the problems of easy contamination of transmission components and unstable power transmission, and realizing the smooth start and control of the lifting action of the fall arrestor.

[0014] 3. By setting up a matching mechanism and utilizing the hinged structure of the connecting seat and the telescopic rod, this utility model solves the problem of swaying and jamming caused by single-point force on the anti-fall plate, effectively improving the structural stability and motion synchronization during the deployment and retrieval process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main three-dimensional structure provided in an embodiment of the present utility model; Figure 2 This is a three-dimensional structural diagram of the shrinkage mechanism provided in an embodiment of the present utility model; Figure 3 This is a three-dimensional structural diagram of the mating mechanism provided in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the three-dimensional structure of the rear side of the main body provided in an embodiment of this utility model.

[0016] In the diagram: 1. Fall arrestor assembly; 101. Mounting plate; 102. Fall arrestor plate; 2. Retraction mechanism; 201. Protective cover; 202. Servo motor; 203. Transmission rod; 204. Bearing seat; 205. Synchronous belt; 206. Transmission shaft; 207. Telescopic belt; 208. Fixed seat; 209. Fixed shaft; 3. Coupling mechanism; 301. Connecting seat; 302. Telescopic rod. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0020] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0021] Example 1 Reference Figure 1-4 In the first embodiment of this utility model, a fall arrestor 1 is provided, including a mounting plate 101 and a fall arrestor 102. The surface of the mounting plate 101 and the surface of the fall arrestor 102 are rotatably connected by a rotating shaft. A retraction mechanism 2 is provided at the upper end of the mounting plate 101, and a cooperating mechanism 3 is provided at the upper end of the retractable fall arrestor 102. The retraction mechanism 2 is released when the fall arrestor 102 needs to be used, and the cooperating mechanism 3 is used to assist the retraction mechanism in retracting.

[0022] Specifically, the fall arrestor component 1 solves the problems of unstable deployment and retrieval, poor structural linkage, and insufficient safety and reliability of traditional fall arrestor devices. By adopting a pivot hinge structure between the mounting plate 101 and the fall arrestor plate 102, the fall arrestor plate 102 can be rotated and opened and closed. In conjunction with the retraction mechanism 2 set at the upper end, the active release and retrieval control of the fall arrestor plate 102 can be realized, ensuring the controllability and repeatability of the action. At the same time, the cooperating mechanism 3 set at the upper end of the fall arrestor plate 102 works in conjunction with the retraction mechanism 2 to effectively share the force, improve the structural stability during the movement, and prevent swaying or jamming.

[0023] Furthermore, when carrying out high-altitude construction work at a construction site, in order to ensure the safety of operators and equipment, the fall arrestor 1 needs to be deployed to the designated protective position. First, the operator can adjust the entire fall arrestor to the required installation area, ensure its structural stability and reliable connection with the surrounding support components, and then release it through the retraction mechanism 2 when the fall arrestor 102 needs to be used, and retract it through the auxiliary telescopic mechanism 3.

[0024] Example 2 The second embodiment of this utility model provides a retraction mechanism 2 including a protective cover 201, a servo motor 202, a transmission rod 203, a bearing seat 204, a synchronous belt 205, a transmission shaft 206, a telescopic belt 207, a fixed seat 208, and a fixed shaft 209. The surface of the protective cover 201 is fixedly connected to the surface of the servo motor 202. The output end of the servo motor 202 is fixedly connected to the surface of the transmission rod 203. The surface of the transmission rod 203 is rotatably connected to the inner wall of the bearing seat 204. The inner side of the synchronous belt 205 is drively connected to the surface of the transmission shaft 206. The surface of the transmission shaft 206 is fixedly connected to the rear end surface of the telescopic belt 207. The fixed shaft 209 is disposed on the upper end of the fall arrestor plate 102. The surface of the protective cover 201 is fixedly connected to the surface of the mounting plate 101. The surface of the transmission rod 203 is rotatably connected to the inner wall of the protective cover 201. The surface of the bearing seat 204 is fixedly connected to the surface of the mounting plate 101. The surface of the transmission rod 203 is connected to the inner side of the synchronous belt 205. The surface of the transmission rod 203 is rotatably connected to the upper inner wall of the mounting plate 101. The surface of the transmission shaft 206 is rotatably connected to the inner wall of the mounting plate 101. The synchronous belt 205 is located inside the protective cover 201. The surface of the fixed seat 208 is fixedly connected to the surface of the mounting plate 101. The surface of the fixed shaft 209 is fixedly connected to the upper end of the fall arrestor plate 102. The surface of the telescopic belt 207 is fixedly connected to the surface of the fixed shaft 209.

[0025] Specifically, the retraction mechanism 2 solves the problems of unstable power transmission, exposed and easily damaged components, and uncontrollable movement in traditional fall arrest devices. By integrating the servo motor 202, transmission rod 203, synchronous belt 205, and transmission shaft 206 inside the protective cover 201, it effectively protects the core transmission components from external environmental interference, improving service life and operational reliability. The servo motor 202 controls the transmission process, and in conjunction with the bearing seat 204 and multi-point rotating support structure, ensures the smooth operation of the transmission rod 203 and transmission shaft 206. The synchronous belt 205 is used to achieve synchronous power output, driving the telescopic belt 207 to slide axially on the transmission shaft 206, realizing the linear conversion of telescopic movement. The fixed seat 208 and fixed shaft 209 ensure that the telescopic belt 207 is evenly stressed during the retraction and extension process, avoiding uneven load, thereby achieving smooth, controllable, and repeatable operation of the fall arrestor 102 lifting process.

[0026] Furthermore, the operator can adjust the entire fall arrestor to the required installation area, ensuring its structural stability and reliable connection with surrounding supporting components. Then, the servo motor 202 is started, its output end fixed to the transmission rod 203 via a coupling. When the motor runs, it drives the transmission rod 203 to rotate synchronously. The rotation of the transmission rod 203 is transmitted to the transmission shaft 206 located below it via the synchronous belt 205, causing the transmission shaft 206 to rotate in the same direction under the drive of the synchronous belt 205. Since one end of the telescopic belt 207 is slidably engaged with the transmission shaft 206, it can axially expand during rotation, while the other end is firmly connected to the fixed shaft 209, thus converting rotational power into telescopic belt power. The linear release action of 207, as the telescopic belt 207 is gradually released, the fall arrestor 102 connected to its end begins to unfold downwards under the combined action of gravity and traction. The fixed shaft 209 is fixedly connected to the fall arrestor 102 to ensure the reliability of power transmission. At the same time, the mounting plate 101 and the fall arrestor 102 are hinged through a rotating shaft, allowing relative rotation between the two, thereby achieving a smooth transition of the fall arrestor 102 from the retracted state to the vertical protection state. During this process, the release speed of the telescopic belt 207 is controlled by the rotation speed of the servo motor 202 to ensure the stability and controllability of the fall arrestor 102 during the descent process, avoiding structural impact or safety hazards caused by sudden falls.

[0027] Example 3 The third embodiment of this utility model provides a mating mechanism 3 including a connecting seat 301 and a telescopic rod 302. The inner walls of the two connecting seats 301 are rotatably connected to the two ends of the telescopic rod 302 via rotating shafts. The two connecting seats 301 are fixedly connected to the surfaces of the mounting plate 101 and the anti-fall plate 102, respectively.

[0028] Specifically, the cooperating mechanism 3 solves the problems of unstable movement, structural skew and motion jamming caused by single-point force during the deployment and retrieval of the fall arrestor 102. Through the hinged cooperation between the connecting seat 301 and the telescopic rod 302, not only is the rigidity and connection reliability of the overall structure enhanced, but also the synergistic force is achieved, which effectively improves the guidance and stability of the fall arrestor 102 during the movement process.

[0029] Furthermore, to further enhance the stability and safety of the device's operation, connecting seats 301 are provided on the outer sides of both the mounting plate 101 and the fall arrestor plate 102. The two connecting seats 301 are hinged to both ends of the telescopic rod 302 via a rotating shaft. The telescopic rod 302 plays an auxiliary support and guiding role during the deployment of the fall arrestor plate 102, effectively sharing the load borne by the telescopic belt 207 and preventing the fall arrestor plate 102 from swaying or getting stuck during deployment. When the work is completed and the fall arrestor plate 102 needs to be retracted, the servo motor 202 is started in reverse, causing the transmission rod 203, synchronous belt 205, and transmission shaft 206 to rotate in the opposite direction, driving the telescopic belt 207 to gradually rewind. At the same time, the telescopic rod 302 provides a pull-back assist, causing the fall arrestor plate 102 to smoothly return to its initial retracted state, completing a complete fall arrestor work cycle.

[0030] Working principle: When performing high-altitude construction work on a construction site, to ensure the safety of operators and equipment, the fall arrestor 1 must be deployed to the designated protective position. First, the operator can adjust the entire fall arrestor to the required installation area, ensuring its structural stability and reliable connection with the surrounding supporting components. Then, the servo motor 202 is started, and its output end is fixed to the transmission rod 203 through a coupling. When the motor runs, it drives the transmission rod 203 to rotate synchronously. The rotation of the transmission rod 203 is transmitted to the transmission shaft 206 located below it through the synchronous belt 205, causing the transmission shaft 206 to rotate on the synchronous belt 205. Driven by the same direction, the telescopic belt 207 rotates in the same direction. Since one end of the telescopic belt 207 is slidably engaged with the drive shaft 206, it can axially expand during rotation. The other end is firmly connected to the fixed shaft 209, thus converting the rotational power into a linear release action of the telescopic belt 207. As the telescopic belt 207 gradually releases, the fall arrestor 102 connected to its end begins to unfold downwards under the combined action of gravity and traction. The fixed shaft 209 is fixedly connected to the fall arrestor 102 to ensure reliable power transmission. Simultaneously, the mounting plate 101 and the fall arrestor 102 are connected by a rotating shaft. The hinged joint allows relative rotation between the two components, enabling a smooth transition of the fall arrestor 102 from its retracted state to its vertical protective state. During this process, the release speed of the telescopic belt 207 is controlled by the rotational speed of the servo motor 202, ensuring the smoothness and controllability of the fall arrestor 102's descent and preventing structural impact or safety hazards caused by sudden falls. To further enhance the stability and safety of the device's operation, connecting seats 301 are provided on the outer sides of both the mounting plate 101 and the fall arrestor 102. The two connecting seats 301 are hinged to both ends of the telescopic rod 302 via a rotating shaft. The telescopic rod 302 plays an auxiliary support and guiding role during the deployment of the fall arrestor 102, effectively sharing the load borne by the telescopic belt 207 and preventing the fall arrestor 102 from swaying or getting stuck during deployment. When the work is completed and the fall arrestor 102 needs to be retracted, the servo motor 202 is started in reverse, causing the transmission rod 203, the synchronous belt 205 and the transmission shaft 206 to rotate in the opposite direction, driving the telescopic belt 207 to gradually rewind. At the same time, the telescopic rod 302 provides pull-back assistance, so that the fall arrestor 102 can be smoothly reset to the initial retracted state, completing a complete fall arrest work cycle.

[0031] In summary, through the coordinated operation of the servo motor, transmission rod, synchronous belt, transmission shaft, telescopic belt, fixed shaft, fall arrestor plate, mounting plate, connecting seat, and telescopic rod, the controllable deployment and safe retrieval of the fall arrestor plate are achieved, resulting in a stable and reusable fall protection effect during construction.

[0032] The fall arrestor, servo motor, and telescopic rod used in this application can be additionally equipped with protective measures of common knowledge in the field under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust protection, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0033] It should be noted that (servo motor, synchronous belt and telescopic rod) are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0034] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0035] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0036] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fall arrestor for safety protection, characterized in that: The invention includes a fall arrestor assembly (1) for safety protection, the fall arrestor assembly (1) including a mounting plate (101) and a fall arrestor plate (102), the surface of the mounting plate (101) and the surface of the fall arrestor plate (102) being rotatably connected by a pivot. The upper end of the mounting plate (101) is provided with a retraction mechanism (2), and the upper end of the retractable anti-fall plate (102) is provided with a cooperating mechanism (3). The retraction mechanism (2) is released when the anti-fall plate (102) needs to be used, and the cooperating mechanism (3) is used to assist the telescopic mechanism in retracting.

2. A fall arrestor for safety protection according to claim 1, characterized in that: The retraction mechanism (2) includes a protective cover (201), a servo motor (202), a transmission rod (203), a bearing seat (204), a synchronous belt (205), a transmission shaft (206), a telescopic belt (207), a fixed seat (208), and a fixed shaft (209). The surface of the protective cover (201) is fixedly connected to the surface of the servo motor (202). The output end of the servo motor (202) is fixedly connected to the surface of the transmission rod (203). The surface of the transmission rod (203) is rotatably connected to the inner wall of the bearing seat (204). The inner side of the synchronous belt (205) is connected to the surface of the transmission shaft (206). The surface of the transmission shaft (206) is fixedly connected to the rear end surface of the telescopic belt (207). The fixed shaft (209) is located at the upper end of the anti-fall plate (102).

3. A fall arrestor for safety protection according to claim 2, characterized in that: The surface of the protective cover (201) is fixedly connected to the surface of the mounting plate (101), the surface of the transmission rod (203) is rotatably connected to the inner wall of the protective cover (201), and the surface of the bearing seat (204) is fixedly connected to the surface of the mounting plate (101).

4. A fall arrestor for safety protection according to claim 2, characterized in that: The surface of the transmission rod (203) is connected to the inner side of the synchronous belt (205), the surface of the transmission rod (203) is rotatably connected to the inner wall of the upper end of the mounting plate (101), and the surface of the transmission shaft (206) is rotatably connected to the inner wall of the mounting plate (101).

5. A fall arrestor for safety protection according to claim 4, characterized in that: The synchronous belt (205) is disposed inside the protective cover (201), the surface of the fixed seat (208) is fixedly connected to the surface of the mounting plate (101), the surface of the fixed shaft (209) is fixedly connected to the upper end of the anti-fall plate (102), and the surface of the telescopic belt (207) is fixedly connected to the surface of the fixed shaft (209).

6. A fall arrestor for safety protection according to claim 2, characterized in that: The mating mechanism (3) includes a connecting seat (301) and a telescopic rod (302). The inner walls of the two connecting seats (301) are rotatably connected to the two ends of the telescopic rod (302) via a rotating shaft.

7. A fall arrestor for safety protection according to claim 6, characterized in that: The two connecting seats (301) are fixedly connected to the surfaces of the mounting plate (101) and the fall arrestor plate (102), respectively.

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