Self-tightening anti-falling device for single-pipe tower

Abstract

The self-tightening type anti-falling device comprises a supporting arm, a self-tightening device is arranged above the supporting arm, the self-tightening device comprises a box bottom plate arranged at the top of the supporting arm, angle steel is fixedly connected to the bottom of the inner wall of the box bottom plate, and a shaft pin hole is formed in the surface of the angle steel. According to the anti-falling steel wire rope, the unique structural design is adopted, and the problems of loosening and twisting of the anti-falling steel wire rope due to the fact that the service life is prolonged are effectively solved through cooperative operation among the counter weight, the screw rod and the self-tightening device. When the steel wire rope is loosened, the screw automatically moves downwards under the gravity action of the counter weight, and the steel wire rope is rapidly tensioned and is always in a safe tightening state; once a falling event occurs, the spring drives the limiting claw to be tightly meshed with the screw rod, the screw rod is locked, the anti-falling steel wire rope is prevented from moving upwards, reliable safety protection is provided for tower climbing operation personnel, the anti-falling effect is greatly improved, and the device has the advantage of being good in anti-falling effect.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-falling, and specifically provides a self-tightening anti-falling device for a single-pole tower. Background Art

[0002] In order to ensure the safety of workers working on the tower, anti-falling steel wires are currently configured on single-pole towers.

[0003] However, with the increase in the service life, the anti-falling steel wires will become loose and kinked, which is particularly obvious on socket-type single-pole towers and seriously affects the safety of workers working on the tower. Therefore, there is an urgent need for a device that can prevent the steel wires from becoming loose and keep them in a tensioned state. Summary of the Invention

[0004] To solve the problems raised in the above background art, the purpose of the present invention is to provide a self-tightening anti-falling device for a single-pole tower, which has the advantage of good anti-falling effect, and solves the problem that with the increase in the service life, the anti-falling steel wires will become loose and kinked, which is particularly obvious on socket-type single-pole towers and seriously affects the safety of workers working on the tower.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A self-tightening anti-falling device for a single-pole tower, including a support arm, and a self-tightening device is arranged above the support arm. The self-tightening device includes a box bottom plate arranged at the top of the support arm. At the bottom of the inner wall of the box bottom plate, an angle steel is fixedly connected. A pin hole is opened on the surface of the angle steel, and a limit claw is rotatably connected inside the pin hole. A spring is arranged on the surface of the limit claw, and one end of the spring away from the limit claw is connected to the angle steel. A screw rod is arranged inside the box bottom plate, and the screw rod meshes with the limit claw. The bottom of the screw rod extends below the support arm and is fixedly connected with a counterweight.

[0006] Preferably, on both sides of the front and back of the box bottom plate, first installation openings are opened. A box body cover plate is arranged on the surface of the box bottom plate, and second installation openings are opened on both the front and back of the box body cover plate.

[0007] Preferably, the counterweight is made of stainless steel material, and the thickness of the counterweight is 30 mm.

[0008] Preferably, third installation openings are opened on the surface of the box bottom plate, and the number of the third installation openings is four, and the third installation openings are evenly distributed on the surface of the box bottom plate.

[0009] Preferably, the surface of the spring is sprayed with anti-rust paint.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention adopts a unique structural design. Through the coordinated operation among the counterweight, the screw rod, and the self-tightening device, it effectively solves the problems of loosening and kinking of the anti-falling steel wire rope due to the increase in service life. When the steel wire rope loosens, the screw rod automatically moves downward under the action of the gravity of the counterweight, quickly tightening the steel wire rope to ensure that it is always in a safe and taut state. Once a falling incident occurs, the spring-driven limit claw tightly engages with the screw rod, instantly locking the screw rod and preventing the anti-falling steel wire rope from moving upward, providing reliable safety protection for the personnel working on the tower and greatly improving the anti-falling effect. This device has the advantage of good anti-falling effect.

[0011] 2. Through the settings of the first installation port, the box cover plate, and the second installation port, when installing the box cover plate, the box cover plate is sleeved on the surface of the box bottom plate from top to bottom, making the first installation port aligned with the second installation port. The operator can use bolts to fixedly connect the box bottom plate and the box cover plate. The operator passes the bolt through the second installation port and then threadedly connects it with the first installation port. The box cover plate can protect the components above the box bottom plate, such as the limit claw, the spring, and the angle steel, thereby extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of the spring of the present invention; Figure 3 is a schematic structural diagram of the limit claw of the present invention; Figure 4 is a schematic structural diagram of the angle steel of the present invention; Figure 5 is of the present invention Figure 2 enlarged schematic diagram of the structure at A in; Figure 6 is of the present invention Figure 3 enlarged schematic diagram of the structure at B in.

[0013] In the figure: 1. Boom; 2. Self-tightening device; 3. Box bottom plate; 4. Angle steel; 5. Pin hole; 6. Limit claw; 7. Spring; 8. Screw rod; 9. Counterweight; 10. First installation port; 11. Box cover plate; 12. Second installation port; 13. Third installation port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0015] As shown Figures 1 to 6 in the figure, a single-pole tower self-tightening anti-falling device includes a support arm 1. Above the support arm 1, there is a self-tightening device 2. The self-tightening device 2 includes a box bottom plate 3 arranged at the top of the support arm 1. At the bottom of the inner wall of the box bottom plate 3, there is a fixed connection with an angle steel 4. On the surface of the angle steel 4, there is a pin hole 5. Inside the pin hole 5, there is a rotation connection with a limit claw 6. On the surface of the limit claw 6, there is a spring 7. One end of the spring 7 away from the limit claw 6 is connected with the angle steel 4. Inside the box bottom plate 3, there is a screw rod 8. The screw rod 8 meshes with the limit claw 6. The bottom of the screw rod 8 extends below the support arm 1 and is fixedly connected with a counterweight 9. The operator can set a slide rail and a slider. The slider is fixedly connected with the counterweight 9, and the slider stably slides up and down inside the slide rail, thereby ensuring that the counterweight 9 and the screw rod 8 can stably move up and down. The above-mentioned slider and slide rail are both common existing technologies, and the working principle is common knowledge for those skilled in the art. This application will not elaborate in detail.

[0016] Referring Figure 1 to the figure, on both sides of the front and back of the box bottom plate 3, there are first installation openings 10. On the surface of the box bottom plate 3, there is a box body cover plate 11. On the front and back of the box body cover plate 11, there are second installation openings 12.

[0017] As a technical optimization scheme of the present invention, through the settings of the first installation opening 10, the box body cover plate 11, and the second installation opening 12, when the box body cover plate 11 is installed, the box body cover plate 11 is sleeved on the surface of the box bottom plate 3 from top to bottom, so that the first installation opening 10 is aligned with the second installation opening 12. The operator can use bolts to fixedly connect the box bottom plate 3 and the box body cover plate 11. The operator passes the bolt through the second installation opening 12 and then threadedly connects it with the first installation opening 10. The box body cover plate 11 can protect the components above the box bottom plate 3, such as the limit claw 6, the spring 7, and the angle steel 4.

[0018] Referring Figure 2 to the figure, the counterweight 9 is made of stainless steel material, and the thickness of the counterweight 9 is 30 mm.

[0019] As a technical optimization scheme of the present invention, through the counterweight 9 made of stainless steel material, it not only has excellent anti-corrosion and rust-proof performance, effectively copes with the complex and harsh outdoor environment, and ensures long-term stable operation; and the counterweight 9 is designed in a disc shape, while ensuring the effect of gravity, it optimizes the overall structural stability of the device.

[0020] Referring Figure 5 to the figure, on the surface of the box bottom plate 3, there are third installation openings 13. The number of the third installation openings 13 is four, and the third installation openings 13 are evenly distributed on the surface of the box bottom plate 3.

[0021] As a technical optimization solution of the present invention, through the setting of the third installation port 13, the operator can fixedly connect the box bottom plate 3 and the support arm 1 through screws and nuts. The support arm 1 is an accessory component of the single-pole tower and is welded to the single-pole tower.

[0022] Reference Figure 6 , the surface of the spring 7 is sprayed with anti-rust paint.

[0023] As a technical optimization solution of the present invention, by spraying anti-rust paint on the surface of the spring 7, the anti-rust ability of the spring 7 is significantly enhanced, the influence of rust on elasticity and performance is avoided, and the durability of each component of the device is comprehensively improved.

[0024] The working principle and usage process of the present invention: During use, the box bottom plate 3 is fixed on the support arm 1 of the single-pole tower. The screw rod 8 is made of ∅16mm round steel with full threads to increase the meshing force with the self-locking device 2. The threads on the surface of the screw rod 8 are not shown. The anti-falling steel wire rope is connected to the top of the screw rod 8. The top of the screw rod 8 is provided with a bending part for facilitating the connection with the anti-falling steel wire rope. When the anti-falling steel wire rope is loose, the screw rod 8 moves downward under the gravity of the counterweight 9 disc, thereby tightening the steel wire rope. At this time, when the screw rod 8 moves downward, the limit claw 6 will not hinder the downward movement of the screw rod 8. The center of gravity of each limit claw 6 is at the rear end, and two springs 7 on the left and right are in a tensioned state, enabling the limit claw 6 to rotate around the pin shaft, thereby reducing the gap between the two limit claws 6 and ensuring that the limit claw 6 is in a meshing state with the screw rod 8. The box cover 11 is connected to the side wall of the box bottom plate 3 through bolts. When the rotation angle of the limit claw 6 is too large, the top of the limit claw 6 is pressed by the box cover 11, which can play a limiting role; When a falling event occurs, the anti-falling steel wire rope will pull the screw rod 8 and the counterweight 9 upward. At this time, under the action of the spring 7, the limit claw 6 is engaged with the screw rod 8, which can firmly lock the screw rod 8, prevent the screw rod 8 from moving upward, thereby restricting the upward movement of the anti-falling steel wire rope, and further realizing the anti-falling treatment. One end of the spring 7 is stably connected to the limit claw 6, and the other end is stably connected to the angle steel 4. The spring 7 acts as a tension spring in this application.

[0025] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-tightening anti-falling device for a single-tube tower, comprising a support arm (1), characterized in that: Above the said support arm (1), a self - tightening device (2) is provided. The self - tightening device (2) includes a box bottom plate (3) arranged at the top of the support arm (1). At the bottom of the inner wall of the box bottom plate (3), an angle steel (4) is fixedly connected. On the surface of the angle steel (4), a pin hole (5) is opened. Inside the pin hole (5), a limit claw (6) is rotatably connected. On the surface of the limit claw (6), a spring (7) is arranged. One end of the spring (7) far from the limit claw (6) is connected to the angle steel (4). Inside the box bottom plate (3), a screw rod (8) is arranged. The screw rod (8) meshes with the limit claw (6). The bottom of the screw rod (8) extends below the support arm (1) and is fixedly connected with a counterweight (9).

2. The self-tightening anti-falling device for a single-tube tower according to claim 1, characterized in that: On both sides of the front and back of the box bottom plate (3), first mounting openings (10) are opened. On the surface of the box bottom plate (3), a box body cover plate (11) is arranged. On the front and back of the box body cover plate (11), second mounting openings (12) are opened.

3. The self-tightening anti-falling device for a single-pole tower according to claim 1, wherein: The counterweight (9) is made of stainless steel material, and the thickness of the counterweight (9) is 30 mm.

4. A single-tube tower self-tightening anti-falling device according to claim 1, characterized in that: On the surface of the box bottom plate (3), third mounting openings (13) are opened. The number of the third mounting openings (13) is four, and the third mounting openings (13) are evenly distributed on the surface of the box bottom plate (3).

5. A self-tightening anti-falling device for a single-pole tower according to claim 1, characterized in that: The surface of the spring (7) is sprayed with anti - rust paint.

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