Safety protection device for high-altitude operation

Abstract

This utility model discloses a safety protection device for working at heights, including a fall arrestor fixed at a height, a steel wire rope wound inside the fall arrestor and extending from its bottom, a speed sensor located at the bottom of the fall arrestor for measuring the speed of the steel wire rope, an audible and visual alarm located on the surface of the fall arrestor and electrically connected to the speed sensor, a buffer assembly located at the bottom of the steel wire rope, a human body connection buckle and a guide connection buckle located at the bottom of the buffer assembly, a winding mechanism fixed at a low position with a winding force less than that of the fall arrestor, and a guide rope wound inside the winding mechanism and extending from one end and connected to the guide connection buckle. In this safety protection device for working at heights, the winding mechanism can act as a guide for the retrieval of the steel wire rope, preventing the steel wire rope from getting stuck and unable to be retrieved due to shaking at the bottom of the rope or complex surrounding environment during the retrieval process.

Description

Technical Field

[0001] This utility model relates to the field of safety protection technology, and in particular to a safety protection device for working at heights. Background Technology

[0002] Working at heights refers to work performed at a certain height, with a certain position as the reference. In order to facilitate preventive measures during the operation and effectively prevent accidents of people and objects falling from heights, according to the characteristics of the construction industry, in the construction and installation engineering, all kinds of work with openings and edges within the structural scope of buildings and structures, suspended and climbing work, work on operating platforms and three-dimensional cross-operations, as well as construction work on various holes, pits, ditches and trenches on the site outside the main structure and beside passages, as long as they meet the above conditions, are all treated as working at heights and require the installation of safety protection devices.

[0003] Currently, workers are typically provided with safety helmets and safety belts when working at heights, and fall arrest devices are installed at the top to provide safety protection. These devices can instantly lock the safety rope by sensing the speed of descent or fall, preventing the person from falling further and ensuring their physical and life safety.

[0004] Existing safety devices often experience swaying when the worker removes the connecting buckle at the bottom and the wire rope is retrieved using the internal recovery mechanism. This swaying can easily cause the connecting buckle to collide and get caught on the safety ladder during retrieval, preventing successful recovery. Furthermore, the wire rope experiences a momentary impact when retracting into the fall arrestor, which can cause deformation or even damage over time, shortening its lifespan. Moreover, when the worker needs to return to a higher position after landing, the wire rope recovery fall arrestor cannot provide safety protection for the worker's ascent. Summary of the Invention

[0005] In view of this, the present invention provides a safety protection device for working at heights, in order to solve the technical problems mentioned in the background art.

[0006] This utility model solves the above problems through the following technical means:

[0007] This utility model relates to a safety protection device for working at height, comprising a fall arrestor fixed at a height, a steel wire rope wound inside the fall arrestor and extending from its bottom, a speed sensor located at the bottom of the fall arrestor for measuring the speed of the steel wire rope, an audible and visual alarm located on the surface of the fall arrestor and electrically connected to the speed sensor, a buffer assembly located at the bottom of the steel wire rope, a human body connection buckle and a guide connection buckle located at the bottom of the buffer assembly, a winding mechanism fixed at a low position with a winding force less than that of the fall arrestor, and a guide rope wound inside the winding mechanism and extending from one end and connected to the guide connection buckle.

[0008] Preferably, the back plate of the fall arrestor extends outward to form a fixing plate.

[0009] Preferably, the top of the fall arrestor is connected to a hoisting rope, and the top of the hoisting rope is connected to a fixing buckle.

[0010] Preferably, the connection line between the winding mechanism and the fall arrestor forms an angle with the vertical line, and the winding mechanism is located on the side away from the climbing facade.

[0011] As a further improvement to the above technical solution, the bottom of the fall arrestor is provided with a protective sleeve assembly, and the speed sensor is located inside the protective sleeve assembly.

[0012] Preferably, the audible and visual alarm is attached to the housing of the fall arrester with adhesive backing, or connected to the housing of the fall arrester with clips or bolts.

[0013] As a further improvement to the above technical solution, a limiting block made of elastic material is fixed on the steel wire rope above the buffer assembly.

[0014] Preferably, the top surface of the limiting block is an arc-shaped curved surface.

[0015] As a further improvement to the above technical solution, the winding mechanism is provided with a right-angled mounting plate.

[0016] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0017] This utility model's safety protection device for working at heights features a winding mechanism at a low position with a winding force less than that of the fall arrester. This mechanism is connected to the guide buckle via a guide rope and provides the following benefits: 1. It serves as a guide for the recovery of the wire rope. When the worker safely lands to the low position and releases the human body connection buckle, the wire rope and the guide rope automatically return to the connection line between the winding mechanism and the fall arrester, and retract along the direction of the connection line towards the fall arrester. This prevents the wire rope from getting stuck and unable to retract due to bottom swaying or complex surrounding conditions during the recovery process. 2. The buffer assembly applies tension to the wire rope to resist the winding force of the fall arrester, slowing down the speed at which the wire rope retracts into the fall arrester. This prevents the bottom components of the wire rope from impacting the fall arrester during the instant of retraction, extending its service life. 3. When the worker temporarily lands and locks the winding mechanism, the human body connection buckle is locked in the low position, allowing the worker to easily reconnect the buckle and return, improving efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the safety protection device for working at heights according to this utility model.

[0019] like Figure 1 , fall arrestor-1, wire rope-2, speed sensor-3, audible and visual alarm-4, buffer assembly-5, human body connection buckle-6, guide connection buckle-7, cable winding mechanism-8, guide rope-9, fixing plate-10, hoisting rope-11, fixing buckle-12, protective sleeve assembly-13, limit block-14, mounting plate-15. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1 As shown: The safety protection device for working at height described in this embodiment includes a fall arrestor 1 fixed at a height, a steel wire rope 2 wound inside the fall arrestor 1 and extending out from its bottom, a speed sensor 3 located at the bottom of the fall arrestor 1 for measuring the speed of the steel wire rope 2, an audible and visual alarm 4 located on the surface of the fall arrestor 1 and electrically connected to the speed sensor 3, a buffer assembly 5 located at the bottom of the steel wire rope 2, a human body connection buckle 6 and a guide connection buckle 7 located at the bottom of the buffer assembly 5, a winding mechanism 8 fixed at a low position with a winding force less than that of the fall arrestor 1, and a guide rope 9 wound inside the winding mechanism 8 and extending out from one end and connected to the guide connection buckle 7.

[0023] The safety protection device for working at heights described in this embodiment has a winding mechanism 8 at a low position with a winding force less than that of the fall arrester 1. This mechanism is connected to the guide connection buckle 7 via a guide rope 9, and produces the following effects: 1. It can serve as a guide for the recovery of the wire rope 2. When the worker safely descends to the low position and releases the human body connection buckle 6, the wire rope 2 and the guide rope 9 automatically return to the connection line between the winding mechanism 8 and the fall arrester 1, and are retracted towards the fall arrester 1 along the direction of the connection line, avoiding the wire rope 2 from swaying at the bottom during the recovery process. 1. The complex surrounding environment can cause the wire rope 2 to get stuck and unable to be retracted; 2. The buffer assembly 5 can apply tension to the wire rope 2 to resist the winding force of the fall arrester 1 on the wire rope 2, slowing down the speed at which the wire rope 2 retracts into the fall arrester 1, thereby avoiding the impact of the bottom components of the wire rope 2 on the fall arrester 1 at the moment of retraction and extending its service life; 3. When the worker temporarily lands and locks the winding mechanism 8, the human body connection buckle 6 can be locked in a low position, making it convenient for the worker to connect the human body connection buckle 6 at any time to return, improving efficiency.

[0024] In this embodiment, the safety protection device for working at heights triggers the audible and visual alarm 4 when the speed sensor 3 detects that the wire rope 2 is falling rapidly, so as to remind nearby staff to come and help the falling person.

[0025] In a preferred embodiment of this invention, the back plate of the fall arrestor 1 extends outward to form a fixing plate 10, which can securely fix the fall arrestor 1. More preferably, a hoisting rope 11 is connected to the top of the fall arrestor 1, and a fixing buckle 12 is connected to the top of the hoisting rope 11. The fixing buckle 12 can be used to hoist the fall arrestor 1 a second time, which further enhances safety.

[0026] In a preferred embodiment of this invention, the connecting line between the winding mechanism 8 and the fall arrestor 1 forms an angle with the vertical line, and the winding mechanism 8 is located on the side away from the climbing facade. When in use, the guide rope 9 is behind the person and gradually moves away from the person, which will not hinder the worker's movement and ensures safety.

[0027] As a further improvement of this embodiment, the bottom of the fall arrestor 1 is provided with a protective sleeve assembly 13, and the speed sensor 3 is located inside the protective sleeve assembly 13, which can protect the speed sensor 3 and prevent it from being damaged by the impact when the wire rope 2 is retracted.

[0028] In practice, the audible and visual alarm 4 is attached to the housing of the fall arrester 1 with adhesive backing, or is connected to the housing of the fall arrester 1 with clips or bolts.

[0029] As a further improvement of this embodiment, a limiting block 14 made of elastic material is fixed on the steel wire rope 2 above the buffer assembly 5. This not only limits the length of the steel wire rope 2 when it is retracted, but also absorbs part of the impact force when the steel wire rope 2 is retracted, thereby protecting the fall arrester 1.

[0030] As a preferred embodiment of this invention, the top surface of the limiting block 14 is an arc-shaped curved surface, which can completely fit and block the bottom opening of the fall arrestor 1, isolate the outside air, and prevent the fall arrestor 1 from getting damp.

[0031] To facilitate installation, as a further improvement of this embodiment, the winding mechanism 8 is provided with a right-angled mounting plate 15, which can be installed on a plane or a vertical surface as needed on site, making it applicable to a wider range of scenarios.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions 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 solutions of this utility model without departing from the spirit and scope of the technical solutions 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 safety protection device for working at heights, characterized in that: The device includes a fall arrestor fixed at a high position, a steel wire rope wound inside the fall arrestor and extending from its bottom, a speed sensor located at the bottom of the fall arrestor for measuring the speed of the steel wire rope, an audible and visual alarm located on the surface of the fall arrestor and electrically connected to the speed sensor, a buffer assembly located at the bottom of the steel wire rope, a human body connection buckle and a guide connection buckle located at the bottom of the buffer assembly, a winding mechanism fixed at a low position with a winding force less than that of the fall arrestor, and a guide rope wound inside the winding mechanism and extending from one end and connected to the guide connection buckle.

2. The safety protection device for working at heights according to claim 1, characterized in that: The back plate of the fall arrestor extends outward to form a fixing plate.

3. A safety protection device for working at heights according to claim 1 or 2, characterized in that: The top of the fall arrestor is connected to a hoisting rope, and the top of the hoisting rope is connected to a fixing buckle.

4. A safety protection device for working at heights according to claim 1, characterized in that: The connection line between the winding mechanism and the fall arrestor forms an angle with the vertical line, and the winding mechanism is located on the side away from the climbing facade.

5. A safety protection device for working at heights according to claim 1, characterized in that: The fall arrestor has a protective sleeve assembly at its bottom, and the speed sensor is located inside the protective sleeve assembly.

6. A safety protection device for working at heights according to claim 1, characterized in that: The audible and visual alarm is attached to the housing of the fall arrester with adhesive backing, or connected to the housing of the fall arrester by clips or bolts.

7. A safety protection device for working at heights according to claim 1, characterized in that: A limiting block made of elastic material is fixed to the steel wire rope above the buffer assembly.

8. A safety protection device for working at heights according to claim 7, characterized in that: The top surface of the limiting block is an arc-shaped curved surface.

9. A safety protection device for working at heights according to claim 1, characterized in that: The winding mechanism is equipped with a right-angled mounting plate.

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