CN113827884B

CN113827884B - Anti-falling device

Info

Publication number: CN113827884B
Application number: CN202111255640.3A
Authority: CN
Inventors: 刘昆仑; 温振宇; 潘正焘; 郑泽飞; 王勇; 何国伟; 李雪玲; 麦嘉颖; 梁升锋; 钟建业; 李智荣; 曾树钊; 李伯韶; 谢志炜
Original assignee: Guangdong Power Grid Co Ltd; Qingyuan Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Qingyuan Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2023-01-24
Anticipated expiration: 2041-10-27
Also published as: CN113827884A

Abstract

The invention relates to the technical field of power grid maintenance equipment, and discloses a falling prevention device. The anti-falling device comprises a hanging assembly, a limiting assembly and a locking assembly, wherein the hanging assembly is configured to be hung on angle iron of an iron tower of a distribution line. The limiting assembly is rotatably arranged on the hanging assembly and can form a limiting space for limiting the angle iron with the hanging assembly. The locking assembly is rotatably arranged on the hanging assembly and used for locking the limiting assembly. The anti-falling device provided by the invention is simple in structure and convenient to disassemble and assemble, and effectively improves the working effect of an operator in tower climbing operation.

Description

Anti-falling device

Technical Field

The invention relates to the technical field of power grid maintenance equipment, in particular to a falling-preventing device.

Background

In the construction and maintenance of the power transmission and distribution line, the power iron tower is frequently required to be climbed for tower climbing operation, the anti-falling hook is required to be hung on an angle iron of the iron tower during the tower climbing operation, a safety belt is tied between the waist of an operator, and the safety belt is connected with the anti-falling hook so as to protect the safety of the operator.

The anti-falling hook in the prior art has the advantages of complex structure, higher manufacturing cost and inconvenient disassembly and assembly, and wastes time and labor when being disassembled from the angle iron of the iron tower or installed on the angle iron at a higher position.

Disclosure of Invention

The invention aims to provide a falling prevention device, which solves the problems of complex structure and inconvenient disassembly and assembly of the existing falling prevention hook.

In order to achieve the purpose, the invention adopts the following technical scheme:

a fall arrest device, comprising:

the hanging assembly is configured to be hung on angle irons of an iron tower of a distribution line;

the limiting assembly is rotatably arranged on the hanging assembly and can form a limiting space for limiting the angle iron with the hanging assembly;

and the locking assembly is rotatably arranged on the hanging assembly and used for locking the limiting assembly.

As an alternative scheme, the hanging assembly comprises a hanging main body and a first hook, the first hook can be hung on a horizontal side plate of the angle iron, one end of the first hook is connected with the hanging main body, the other end of the first hook is rotatably provided with the limiting assembly, and the locking assembly is rotatably arranged on the hanging main body.

As an alternative scheme, the limiting assemblies are arranged in two groups, the limiting assemblies are symmetrically arranged on two sides of the hanging assembly, and the limiting assemblies are connected through connecting pieces.

As an alternative, the limiting assembly comprises a first limiting plate, a second limiting plate and a third limiting plate which are sequentially connected, one end of the first limiting plate, which is connected with the second limiting plate, is rotatably connected with one end of the first hook, which is not connected with the hooking main body, the first limiting plate can be hooked on the horizontal side plate of the angle iron, and the locking assembly can lock one end of the third limiting plate, which is not connected with the second limiting plate.

As an alternative scheme, two ends of the connecting piece are respectively arranged at one ends of the two second limiting plates, which are connected with the third limiting plate, a first elastic piece is arranged between the connecting piece and the first hook, and the first elastic piece can pull the third limiting plate away from the locking assembly.

As an alternative, a second hook is arranged at one end, connected with the locking assembly, of the third limiting plate, and the second hook can drive the limiting assembly to be away from the locking assembly when the locking assembly unlocks the limiting assembly.

As an alternative, the locking assembly comprises:

the locking plates are respectively and rotatably arranged on two sides of the hanging main body and are divided into two sections, a preset included angle is formed between the two sections of the locking plates, a hanging column is arranged at one end of each locking plate, and the second hook can be hung on the hanging column;

one end of the connecting plate is connected with the other ends of the two locking plates; and

and one end of the second elastic piece is connected with the connecting plate, the other end of the second elastic piece is connected with the hanging main body, and the second elastic piece is configured to drive the connecting plate to drive the locking plate to rotate and reset so as to limit the hanging column at the hanging position of the second hook.

As an alternative, the anti-falling device further comprises a rope, a through hole is formed in the connecting plate, a through hole and a connecting ring are respectively arranged at the top end and the bottom end of the side, opposite to the connecting plate, of the hanging main body, one end of the rope is connected with the through hole, the other end of the rope sequentially penetrates through the connecting ring and the through hole, and the other end of the rope can enable the connecting plate to be close to the hanging main body to enable the hanging column to be separated from the second hook.

As an alternative, the anti-falling device further comprises a telescopic rod, and the telescopic rod is detachably connected with the hanging assembly.

As an alternative, a connecting hole is formed in the hanging assembly, and one end of the telescopic rod is connected to the connecting hole.

The invention has the beneficial effects that:

according to the anti-falling device provided by the invention, the hanging component, the limiting component and the locking component are arranged, so that the anti-falling device can be hung on the angle iron of the iron tower of the distribution line, and can be locked through the self structure, the structure is simple, the assembly and disassembly are convenient, and the working effect of an operator in tower climbing operation is effectively improved.

Drawings

FIG. 1 is a schematic view of a fall arrest device according to the present invention;

figure 2 is a schematic view of the fall arrest device of the present invention from another perspective.

In the figure:

1. a hitch assembly; 11. a main body is connected; 111. a connecting portion; 1111. connecting holes; 1112. a through hole; 112. a handle portion; 1121. a connecting ring; 12. a first hook;

2. a limiting component; 21. a first limit plate; 22. a second limiting plate; 23. a third limiting plate; 24. a second hook;

3. a locking assembly; 31. a locking plate; 32. hanging a connecting column; 33. a connecting plate; 331. perforating holes; 34. a second elastic member;

4. a connecting member;

5. a first elastic member.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings, not all of them.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The first embodiment is as follows:

in order to protect the safety of the operating personnel, the anti-falling device is needed when the tower climbing operation is carried out, the anti-falling device is fixed on angle iron of an iron tower of a distribution line, a safety belt is tied between the waists of the operating personnel climbing the tower, and the speed difference anti-falling device is adopted to connect the safety belt and the anti-falling device to prevent the operating personnel from falling from a high place. When the speed difference safety hook is used normally, the safety rope moves along with the human body and freely stretches, so that an operator does not feel stumbled. In case that the operator falls due to the loss of feet, the pulling-out speed of the safety rope is obviously accelerated, the locking system in the speed difference falling protector automatically locks, the safety rope stops pulling out after being pulled out for a short distance, and the operator is prevented from continuing falling.

As shown in fig. 1, the embodiment provides a falling protection device, which includes a hanging component 1, a limiting component 2 and a locking component 3, wherein the hanging component 1 can be hung on an angle iron of an iron tower of a distribution line, the limiting component 2 and the locking component 3 are rotatably arranged on the hanging component 1, the limiting component 2 can form a limiting space for limiting the angle iron with the hanging component 1, and the locking component 3 is used for locking the limiting component 2, so that the falling protection device can be firmly connected to the angle iron.

Specifically, as shown in fig. 1, the hooking component 1 includes a hooking main body 11 and a first hook 12, the first hook 12 can be hooked on a horizontal side plate of an angle iron, one end of the first hook 12 is connected with the hooking main body 11, the other end is rotatably provided with a limiting component 2, and the locking component 3 is rotatably arranged on the hooking main body 11. And the locking component 3 is rotated to unlock the limiting component 2, so that the limiting component 2 rotates towards the direction far away from the locking component 3, and an opening is opened in the limiting space for limiting the angle iron, so that the hanging component 1 is hung on the angle iron or taken down from the angle iron. The end of the first hook 12, which is not connected to the main body 11, is bent downward to form a hem, so that the angle iron is shielded, and the first hook 12 can be prevented from being separated from the angle iron.

Preferably, as shown in fig. 1, the hitch body 11 includes a connecting portion 111 and a handle portion 112, the connecting portion 111 is connected to the first hook 12 at an upper end thereof, and connected to the handle portion 112 at a lower end thereof, and the locking assembly 3 is disposed on the connecting portion 111 and extends toward the handle portion 112. For easy grip, the handle portion 112 is provided with a cylindrical shape, but may be provided with other shapes, and is not limited herein.

Further, as shown in fig. 1, two sets of limiting assemblies 2 are arranged, the two sets of limiting assemblies 2 are symmetrically arranged on two sides of the hanging assembly 1, and the two sets of limiting assemblies 2 are connected through a connecting piece 4, so that the limiting of the diagonal iron is more stable.

Specifically, as shown in fig. 2, limiting assembly 2 is a C-shaped structure, including first limiting plate 21, second limiting plate 22 and the third limiting plate 23 that connect gradually, the one end that first limiting plate 21 and second limiting plate 22 link to each other rotates the one end of connecting in first couple 12 with articulate the one end that the main part 11 links to each other, first limiting plate 21 can articulate on the horizontal side board of angle bar, locking assembly 3 can lock the one end that third limiting plate 23 does not link to each other with second limiting plate 22. Rotate through the round pin axle between first limiting plate 21 and the first couple 12 to be connected, the downside of first limiting plate 21 can with the downside parallel and level of first couple 12, when anti-falling device articulates on the angle bar, first limiting plate 21 and first couple 12 contact with the horizontal side board of angle bar simultaneously, make anti-falling device articulate more firmly on the angle bar.

Further, as shown in fig. 2, two ends of the connecting member 4 are respectively disposed at one ends of the two second limiting plates 22 connected to the third limiting plate 23, a first elastic member 5 is disposed between the connecting member 4 and the first hook 12, and the first elastic member 5 can drive the limiting assembly 2 to be away from the locking assembly 3 when the locking assembly 3 unlocks the limiting assembly 2, i.e., the third limiting plate 23 can be pulled away from the locking assembly 3 by the first elastic member 5. When the locking assembly 3 releases the locking of the third limiting plate 23, the limiting assembly 2 rotates anticlockwise to the position with the C-shaped opening facing downwards under the action of the tensile force of the first elastic piece 5 and the self gravity, and the anti-falling device is conveniently hung on the angle iron again after being moved. The first elastic member 5 is preferably a spring, which has a simple structure and is low in cost.

Preferably, as shown in fig. 2, a second hook 24 is provided at one end of the third limiting plate 23 where the locking assembly 3 is hooked, and the second hook 24 can be hooked to the locking assembly 3.

Further, as shown in fig. 1, the locking assembly 3 includes a locking plate 31, a coupling plate 33, and a second elastic member 34. The two sets of locking plates 31 are respectively rotatably disposed on two sides of the hanging body 11, the locking plates 31 are divided into two sections, a preset included angle is formed between the two sections of locking plates 31, a hanging post 32 is disposed at one end of each locking plate 31, and the second hook 24 can be hung on the hanging post 32. One end of the connecting plate 33 is connected to the other ends of the two locking plates 31, one end of the second elastic element 34 is connected to the connecting plate 33, and the other end is connected to the connecting portion 111 of the hanging body 11, the second elastic element 34 can drive the connecting plate 33 to drive the locking plate 31 to rotate and reset, so as to limit the hanging post 32 at the position where it is hung with the second hook 24. The locking plate 31 and the hanging main body 11 can be rotationally connected by a pin shaft, and the locking plate is simple in structure and flexible and stable in rotation.

The second elastic element 34 is preferably a spring, and under the elastic force of the spring, the connecting plate 33 moves away from the hooking main body 11 to drive the locking plate 31 to rotate counterclockwise, so that the hooking post 32 is clamped into the second hook 24, thereby locking the limiting component 2. When the lock needs to be released, the lock plate 31 can be rotated clockwise to disengage the hooking rod 32 from the second hook 24 by pressing the link plate 33 in the direction of the handle 112.

In order to reduce the risk of dislodgement of the fall arrest device during operation, it is often necessary to mount the fall arrest device at a location higher than the operator, for example 5 metres above the operator, and the operator climbs a distance beyond the fall arrest device and then demounts the fall arrest device for mounting to a higher location, thus requiring additional mounting and demounting tools.

In order to install the anti-falling device at a higher position, the anti-falling device further comprises a telescopic rod, the telescopic rod is detachably connected with the hanging assembly 1, and the telescopic rod is detached when not in use and is convenient to store. As shown in fig. 1, the hanging component 1 is provided with a connecting hole 1111, one end of the telescopic rod is connected to the connecting hole 1111, and the anti-falling device is hung at a high position of the iron tower by using the telescopic rod.

Particularly, the telescopic link is the scalable hollow cylinder pole that forms for adopting the metal strip system of rolling up, the metal strip stereotypes in advance for the elasticity curling layer that is less than body of rod external diameter that has memory function, thereby have the self-tightening function, can make the curling layer have the elastic potential energy of exerting pressure to the telescopic link all the time, only need press towards big head side strap direction at columniform microcephaly side strap with the hand during extension, big head side is extension after opening spring control insurance under the effect of curling layer elastic potential energy, only need during the shrink with the hand roll-up back, and get the department of closing with the terminal spring control insurance of big head side strap, accomplish the roll-up. The effective extension length of telescopic link is 5 meters, only 0.2 meters after the shrink, and it is comparatively convenient to carry. Insulating paint is sprayed on the telescopic rod, and the telescopic rod has a fluorescent function, so that the telescopic rod is convenient to operate at night. It should be noted that the telescopic rod is not limited to the above structure, and the specific structure of the telescopic rod can be adjusted according to specific use requirements.

In order to detach the anti-falling device from a position higher than the anti-falling device, the anti-falling device further includes a rope, as shown in fig. 1, a through hole 331 is provided on the connecting plate 33, a through hole 1112 and a connecting ring 1121 are respectively provided at a top end and a bottom end of a side of the hanging main body 11 opposite to the connecting plate 33, one end of the rope is connected to the through hole 331, the other end is a free end, the free end sequentially passes through the connecting ring 1121 and the through hole 1112, and the connecting plate 33 can be moved close to the hanging main body 11 by pulling the free end of the rope to separate the hanging post 32 from the second hook 24.

Preferably, as shown in fig. 1, a protrusion is disposed on a side of the upper end of the hanging main body 11 opposite to the connecting plate 33, a through hole 1112 is disposed on the protrusion, and the rope passes through the connecting ring 1121 and then passes through the through hole 1112, so that the rope can be pulled and lifted more stably on the anti-fall device.

The installation and the disassembly process of the anti-falling device are as follows:

during installation, the locking component 3 is rotated to separate the hanging column 32 from the second hook 24, and the locking of the locking component 3 on the limiting component 2 is released; the telescopic rod is connected with the connecting hole 1111, the telescopic rod is lengthened to jack the anti-falling device to a high position, so that the angle iron extends into the locking assembly 3 from the opening, the first hook 12 and the first limiting plate 21 are hung on the angle iron, the second hook 24 is hung on the hanging column 32, and the anti-falling device is installed.

When the anti-falling device is detached, an operator is positioned at a position higher than the anti-falling device, pulls the free end of the rope, and pulls the connecting plate 33 to move towards the direction close to the handle part 112, so that the hanging column 32 is separated from the second hook 24, the rope is continuously pulled, the anti-falling device is lifted, and the anti-falling device is separated from the angle iron, thereby realizing the detachment of the anti-falling device.

The second embodiment:

the present embodiment provides a fall-protection device, the fall-protection device of the second embodiment is basically the same as the fall-protection device of the first embodiment, and the difference between the fall-protection device and the fall-protection device is as follows: in this embodiment, the limiting assembly 2 does not include the first limiting plate 21, and the second limiting plate 22 and the third limiting plate 23 form a limiting space of the diagonal iron with the hooking assembly 1.

The anti-slip sleeve is sleeved on the outer side of the handle part 112, the anti-slip sleeve can be made of rubber, and corrugated or punctiform bulges are arranged on the anti-slip sleeve, so that the anti-slip sleeve can effectively prevent slipping during operation and can protect an operator.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A fall arrest device, comprising:

the hanging assembly (1) is configured to be hung on angle iron of an iron tower of a distribution line, the hanging assembly (1) comprises a hanging main body (11) and a first hook (12), the first hook (12) can be hung on a horizontal side plate of the angle iron, and one end of the first hook (12) is connected with the hanging main body (11);

the limiting component (2) is rotatably arranged at the other end of the first hook (12) and can form a limiting space for limiting the angle iron with the hanging component (1), and a second hook (24) is arranged at one end, which is not rotatably connected with the first hook (12), of the limiting component (2);

locking subassembly (3), rotate set up in articulate subassembly (1) on, be used for locking spacing subassembly (2), locking subassembly (3) include:

the two groups of locking plates (31) are respectively rotatably arranged on two sides of the hanging main body (11), the locking plates (31) are divided into two sections, a preset included angle is formed between the two sections of locking plates (31), a hanging column (32) is arranged at one end of each locking plate (31), and the second hook (24) can be hung on the hanging column (32);

one end of the connecting plate (33) is connected with the other ends of the two locking plates (31); and

second elastic component (34), the one end of second elastic component (34) with connecting plate (33) link to each other, the other end with articulate main part (11) and link to each other, second elastic component (34) are configured as drive connecting plate (33) and drive lockplate (31) rotate and reset, with articulate post (32) spacing in with the position that second couple (24) articulated.

2. The fall arrest device according to claim 1, characterized in that the limiting assemblies (2) are provided in two sets, two sets of limiting assemblies (2) are symmetrically arranged on both sides of the hitch assembly (1), and two sets of limiting assemblies (2) are connected with each other by a connecting member (4).

3. The fall arrest device according to claim 2, characterized in that the limiting assembly (2) comprises a first limiting plate (21), a second limiting plate (22) and a third limiting plate (23) connected in sequence, the end of the first limiting plate (21) connected to the second limiting plate (22) is rotatably connected to the end of the first hook (12) not connected to the hooking body (11), the first limiting plate (21) can be hooked to the horizontal side plate of the angle bar, and the locking assembly (3) can lock the end of the third limiting plate (23) not connected to the second limiting plate (22).

4. The device according to claim 3, characterized in that the two ends of the connecting element (4) are respectively arranged at the ends of the two second limit plates (22) connected to the third limit plate (23), a first elastic element (5) is arranged between the connecting element (4) and the first hook (12), said first elastic element (5) being able to drive the limit stop assembly (2) away from the locking assembly (3) when the locking assembly (3) unlocks the limit stop assembly (2).

5. The fall arrest device according to claim 4, characterized in that it further comprises a rope, a through hole (331) is provided in the connection plate (33), a through hole (1112) and a connection ring (1121) are respectively provided at the top end and the bottom end of the side of the hooking body (11) opposite to the connection plate (33), one end of the rope is connected to the through hole (331), the other end of the rope passes through the connection ring (1121) and the through hole (1112) in turn, and pulling the other end of the rope can make the connection plate (33) approach the hooking body (11) and make the hooking stem (32) separate from the second hook (24).

6. Fall-arrest device according to any of the claims 1 to 5, characterized in that it further comprises a telescopic rod, which is removably connected to the hooking assembly (1).

7. Anti-fall device according to claim 6, characterized in that the hooking assembly (1) is provided with a connection hole (1111), one end of the telescopic rod being connected to the connection hole (1111).