Adjustable anti-falling device capable of adapting to thickness of hook hanging rod

Abstract

The application discloses an adjustable anti-falling device capable of adapting to the thickness of a hooking suspender, which comprises a handle part and a lock body part above the handle part, a lock hole is formed in the middle part of the lock body part, a lock core is rotatably arranged in the lock head part and located at one side of the lock hole, has a U-shaped structure and can rotate in the lock hole area, a spoon-shaped lock tooth is rotatably arranged in the lock body part through a torsion spring and located at the other side of the lock hole, the upper end of the spoon-shaped lock tooth is provided with at least one lock tooth, the other end is in a bent pressing tongue shape and exposed outside the lock body part, under normal conditions, the lock tooth is inclined downward and the pressing tongue is lifted to abut against the outer shell of the lock body part under the action of the torsion spring, and the opening shape of the lock hole is gradually reduced from bottom to top and the top is in an arc shape. The device can adapt to common cleat types, has the functions of self-adapting to the clamping position according to the thickness of the cleat and keeping clamping, and further improves the applicability and safety of the anti-falling tool.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of safety protection tools for tower maintenance and anti-falling of power transmission lines in power systems, in particular to an adjustable anti-falling device that can adapt to the thickness of the hooking boom. BACKGROUND

[0002] In the prior art, when maintaining the power transmission line, it is necessary to climb the power transmission line tower. According to the provisions of 3-20.2.2 of the China Southern Power Grid Co., Ltd. Electric Power Safety Work Regulations, the safety belt should not be lost when climbing the tower and transferring the position. During the operation, the safety belt should be checked at any time. Climbing the power tower is the most basic operation in the maintenance of the power transmission line, which is relatively dangerous, and the risk is greater when the staff climbs the tower with heavy equipment. Therefore, how to ensure the safety of the staff during the climbing of the power tower is the research direction of the industry. However, in the existing tower anti-falling tools, there is a problem of weak practicability, and they do not have the ability to reduce physical exertion in case of danger. Therefore, it is necessary to design a tower anti-falling tool with strong practicability.

[0003] The commonly used anti-falling tools are anti-falling double extension protection ropes and double hook protection anti-falling tools, as well as the light anti-falling tool for climbing the power transmission line tower disclosed in the applicant's earlier application CN208448460U. However, the climbing protection hooks and pegs on the towers built in different regions or different periods have different thicknesses, that is, if the previous anti-falling tools are used, the hole size may not be suitable when the pegs have different thicknesses. Once the suspension occurs, the hole position does not match the peg, cannot be locked, and safety hazards are likely to occur. SUMMARY

[0004] To solve the above problems in the prior art, the applicant has developed an anti-falling tool that can adapt to the thickness of the pegs, which can adapt to the commonly used peg types, has the function of self-adapting clamping position according to the thickness of the pegs and keeping clamping, and further improves the applicability and safety of the anti-falling tool. Specifically, the present application is implemented as follows:

[0005] The adjustable anti-falling device can adapt to the thickness of the hooking suspender, comprising a handle part and a lock body part above the handle part, a lock hole is formed in the middle part of the lock body part, a lock core is rotatably installed in the lock head part on one side of the lock hole in a U-shaped form and can rotate in the lock hole area. A spoon-shaped lock tooth is rotatably installed in the lock body part through a torsion spring in the middle part of the spoon-shaped lock tooth on the other side of the lock hole, the upper end of the spoon-shaped lock tooth has at least one lock tooth, the other end is a bent pressing tongue exposed outside the lock body part, under normal circumstances, the lock tooth end is inclined downward and the pressing tongue is tilted under the action of the torsion spring and is in contact with the outer shell of the lock body part; the opening shape of the lock hole gradually narrows from bottom to top and the top is in an arc shape.

[0006] Further, the lock core is in an integrally formed U-shaped or C-shaped structure, the middle part is installed through a shaft in the lock body part, the end of the U-shaped or C-shaped structure can rotate above the lock hole area, the first end above is provided with a first inclined surface on the inward lower side and a first arc surface on the outward upper side.

[0007] Further, the upper end of the spoon-shaped lock tooth has two lock teeth: a first lock tooth and a second lock tooth from bottom to top, and under normal circumstances, the first lock tooth and the second lock tooth are both inclined downward; the first end of the lock core can be clamped between the first lock tooth and the second lock tooth or behind the second lock tooth.

[0008] Further, the spoon-shaped lock tooth is in a mirror image S shape, the lower side of the first lock tooth and the second lock tooth is in a second arc surface and the upper side is in a second inclined surface, when the lock core moves upward, the first arc surface is in contact with the second arc surface of the first lock tooth, the spoon-shaped lock tooth is pushed upward along the second arc surface of the first lock tooth, the first end of the lock core is clamped between the first lock tooth and the second lock tooth, the first inclined surface is in contact with the second inclined surface of the first lock tooth, the first end of the lock core is locked and cannot move downward; or when the lock core continues to move upward, the first arc surface is in contact with the second arc surface of the second lock tooth, the spoon-shaped lock tooth is pushed upward along the second arc surface of the second lock tooth, the first end of the lock core is clamped behind the second lock tooth, the first inclined surface is in contact with the second inclined surface of the second lock tooth, the first end of the lock core is locked and cannot move downward.

[0009] Further, the opening shape of the lock hole is in a transition area with gradually narrowed width from bottom to top in the middle part, the end has an arc segment and a semicircular end in communication with the transition area, the semicircular end is obliquely arranged on one side of the end, the curvature of the semicircular end is smaller than the curvature of the arc segment.

[0010] Further, the side of the lock body part in the area where the pressing tongue is located is provided with a corresponding opening, the pressing tongue can displace in the opening range; after pressing the pressing tongue, the front end of the spoon-shaped lock tooth moves backward, the lock core can be separated from the limit of the spoon-shaped lock tooth and move downward to reset.

[0011] Further, the spoon-shaped lock tooth and the lock core are integrally formed.

[0012] Further, the tail end of the handle part is provided with a mounting hole for mounting a safety rope.

[0013] The working principle and beneficial effects of the present application are introduced: the lock hole of the adjustable anti-falling device includes three opening regions, a large circular hole at the bottom for easily sleeving the foot nail during climbing, then pulling down the anti-falling device, so that the foot nail passes through the large circular hole region and enters the second transition region with gradually narrowing width, and finally enters the lock hole region at the top. According to the thickness of the foot nail, it is adaptively clamped in the arc-shaped section with a width corresponding to the foot nail. At the same time, the first end of the lock core is clamped by the foot nail and moves upward and rotates, the second end is clamped upward with rotation, and finally is locked by the spoon-shaped lock tooth, which cannot be rotated in reverse direction, so as to lock the foot nail, and the tighter the force is, the tighter the clamping is, thereby achieving the effect of safety anti-falling. Of course, the safety rope of the safety belt worn by the operator needs to be installed on the anti-falling device. In the face of foot nails of different thicknesses, the structure of the present application can clamp them. The segmented arc groove structure at the end of the lock hole can provide clamping stress for foot nails of different thicknesses. When it needs to be removed, the spoon-shaped lock tooth is moved back by pressing the pressing tongue downward, the lock core is released, and the lock body part can be moved upward to take out the foot nail. The structure of the present application is reliable and stable, has a self-locking lock tooth structure, effectively prevents the rotation of the lock core, so that it can only continuously lock the clamping range in one direction and cannot be expanded, and has two clamping and locking gears. When the foot nail is thicker, it only needs the first gear to achieve clamping. When the foot nail is thicker, the lock core will continue to move upward, so that the second end is clamped into the interval of the second gear, achieving the effect of multi-gear adjustable. Therefore, the clamping gear can be adaptively adjusted according to the thickness of the foot nail to be clamped, and has a non-return function, providing a stable and reliable foot nail clamping effect. When the foot nail needs to be taken out, the pressing tongue is pressed down, the raised lock tooth structure is released, and the lock core is reset. The foot nail can be withdrawn to the lock hole region, easily pulled out and convenient for inserting the next foot nail to perform the next safety sleeve operation. The structure of the present application is small, reasonable and convenient to operate. The structure is stable and safe. Based on the self-adaptive clamping function, the practicability and ease of use are improved under the premise of safety and reliability, which is convenient to operate and use, and can adapt to various types of foot nails. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure front view of the adjustable anti-falling device which can adapt to the thickness of the hooking suspension rod.

[0015] Figure 2 It is a structure schematic diagram of the internal structure of the lock core and the lock tooth when clamping the foot nail with thick diameter of the adjustable anti-falling device which can adapt to the thickness of the hooking suspension rod.

[0016] Figure 3The structural diagram of the internal structure of the lock core and the lock tooth of the adjustable anti-falling device capable of adapting to the thickness of the hooking suspender;

[0017] Figure 4 The structural diagram of the rotation interlocking of the internal structure of the lock core and the lock tooth of the adjustable anti-falling device capable of adapting to the thickness of the hooking suspender;

[0018] Figure 5 The structural diagram of the adjustable anti-falling device capable of adapting to the thickness of the hooking suspender;

[0019] Figure 6 The operation and use state diagram of the adjustable anti-falling device capable of adapting to the thickness of the hooking suspender.

[0020] Wherein: 1 handle part, 2 lock body part, 3 lock hole, 4 lock core, 5 spoon-shaped lock tooth, 51 torsion spring, 52 lock tooth, 53 pressing tongue, 41 first end, 42 first inclined surface, 43 first arc surface, 521 first lock tooth, 522 second lock tooth, 523 second arc surface, 524 second inclined surface, 31 transition zone, 32 arc segment, 33 semicircular end, 21 opening, 22 mounting hole. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the present application more clear and obvious, the present application is further described in detail below with specific embodiments and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0022] Embodiment 1: an adjustable anti-falling device that can adapt to the thickness of the hooking boom, comprising a handle part 1 and a lock body part 2 above the handle part 1, a lock hole 3 is formed in the middle of the lock body part 2, a lock core 4 is rotatably installed in the lock head part, located on one side of the lock hole 3, in the shape of U, can rotate in the area of the lock hole 3. The middle of the spoon-shaped lock tooth 5 is installed in the lock body part 2 by a torsion spring 51 in the shape of shaft, located on the other side of the lock hole 3, the upper end of the spoon-shaped lock tooth 5 has at least one lock tooth 52, the other end is a bent pressing tongue 53 exposed outside the lock body part 2, under normal circumstances, under the action of the torsion spring 51, the lock tooth 52 is inclined downward, and the pressing tongue 53 is tilted to top the lock body part 2 shell; the opening shape of the lock hole 3 gradually reduces from bottom to top, and the top is in the shape of arc. The spoon-shaped lock tooth 5 always keeps the head downward under the action of the torsion spring 51, and the head can be tilted up only by operating the pressing tongue 53, and the tilted head can release the rotation of the lock core 4. The lock core 4 is used to clamp the foot nail entering the lock hole 3, and the change of the position of the foot nail relative to the lock hole 3 can drive the rotation of the lock core 4, and the rotation of the lock core 4 can be locked by the lock tooth 52, so that the foot nail can only be clamped step by step until the foot nail is at the end of the lock hole 3 and cannot continue to rise.

[0023] Preferably, the lock core 4 is in the shape of an integral U or C structure, the middle of which is installed through the shaft of the lock body part 2, and the end of the U or C structure can rotate above the area of the lock hole 3, the first end 41 above is provided with a first inclined surface 42 on the inward lower side and a first arc surface 43 on the outward upper side. The upper end of the spoon-shaped lock tooth 5 has two lock teeth 52: the first lock tooth 521 and the second lock tooth 522 from bottom to top, and under normal circumstances, the first lock tooth 521 and the second lock tooth 522 are both inclined downward; the first end 41 of the lock core 4 can be clamped between the first lock tooth 521 and the second lock tooth 522, or behind the second lock tooth 522. When the first end 41 of the lock core 4 contacts the first lock tooth 521, the first inclined surface 42 and the second arc surface 523 contact, the spoon-shaped lock tooth 5 can be pushed up along the second arc surface 523 until the entire first end 41 is completely inserted into the lock tooth 52, and the spoon-shaped lock tooth 5 is reset, and the first arc surface 43 cannot push the second inclined surface block upward, thereby realizing one-way clamping and locking the lock core 4, until the pressing tongue 53 is pressed down, the spoon-shaped lock tooth 5 is tilted up, and the lock core 4 is released, and the lock core 4 can be reset.

[0024] Preferably, the spoon-shaped lock tooth 5 is a mirror image S-shaped, the first lock tooth 521 and the second lock tooth 522 are both provided with a second arc surface 523 below and a second inclined surface 524 above, when the lock core 4 moves upward, the first arc surface 43 contacts the second arc surface 523 of the first lock tooth 521, and the spoon-shaped lock tooth 5 is pushed upward along the second arc surface 523 of the first lock tooth 521, so that the first end head 41 of the lock core 4 is clamped between the first lock tooth 521 and the second lock tooth 522, and the first inclined surface 42 contacts the second inclined surface of the first lock tooth 521, thereby locking the first end head 41 of the lock core 4 so that it cannot move downward; or when the lock core 4 continues to move upward, the first arc surface 43 contacts the second arc surface 523 of the second lock tooth 522, and the spoon-shaped lock tooth 5 is pushed upward along the second arc surface 523 of the second lock tooth 522, so that the first end head 41 of the lock core 4 is clamped behind the second lock tooth 522, and the first inclined surface 42 contacts the second inclined surface of the second lock tooth 522, thereby locking the first end head 41 of the lock core 4 so that it cannot move downward. Preferably, the opening shape of the lock hole 3 is a transition zone 31 with a width gradually narrowing from bottom to top in the middle, and an arc segment 32 and a semicircular end 33 communicating with the transition zone 31 at the end, the semicircular end 33 is obliquely arranged on one side of the end, and the curvature of the semicircular end 33 is smaller than that of the arc segment 32. With this structure, the lock body control of the gear is realized, and the foot nail of different thickness can be adaptively controlled.

[0025] The side surface of the lock body 2 of the area where the pressing tongue 53 is located is provided with a corresponding opening 21, and the pressing tongue 53 can displace within the opening 21; after the pressing tongue 53 is pressed, the front end of the spoon-shaped lock tooth 5 moves backward, and the lock core 4 can be released from the limit of the spoon-shaped lock tooth 5 and move downward to reset. The spoon-shaped lock tooth 5 and the lock core 4 are integrally formed. The tail end of the handle part 1 is provided with a mounting hole 22, and the mounting hole 22 is used for mounting a safety rope.

[0026] It should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation on the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all variations and modifications falling within the scope and boundary of the appended claims, or the equivalent forms of such scope and boundary.

Claims

1. An adjustable anti-falling device that can adapt to the thickness of the hooking boom, comprising a handle part (1) and a lock body part (2) above the handle part (1), the middle part of the lock body part (2) is provided with a lock hole (3), characterized in that: a lock core (4) is rotatably installed in the lock head part and located on one side of the lock hole (3), which is in the shape of U and can rotate in the area of the lock hole (3), the lock core (4) is in the shape of one-piece U or C structure, the middle part of which is installed through the shaft of the lock body part (2), the end of the U or C structure can rotate above the area of the lock hole (3), the first end (41) above is provided with a first inclined surface (42) on the inward lower side and a first arc surface (43) on the outward upper side; a spoon-shaped lock tooth (5) is installed in the lock body part (2) through a torsion spring (51) in the middle part, which is located on the other side of the lock hole (3), the upper end of the spoon-shaped lock tooth (5) is provided with at least one lock tooth (52), the other end is a bent pressing tongue (53) exposed outside the lock body part (2), under normal circumstances, the lock tooth (52) is inclined downward and the pressing tongue (53) is tilted upward under the action of the torsion spring (51) to top the outer shell of the lock body part (2); the side of the lock body part (2) in the area of the pressing tongue (53) is provided with a corresponding opening (21), and the pressing tongue (53) can displace in the opening (21); the upper end of the spoon-shaped lock tooth (5) has two lock teeth (52): the first lock tooth (521) and the second lock tooth (522) from bottom to top, and under normal circumstances, the first lock tooth (521) and the second lock tooth (522) are both inclined downward; the first end (41) of the lock core (4) can be clamped between the first lock tooth (521) and the second lock tooth (522), or behind the second lock tooth (522); the spoon-shaped lock tooth (5) is in the shape of mirror image S, the lower side of the first lock tooth (521) and the second lock tooth (522) is in the shape of second arc surface (523), and the upper side is in the shape of second inclined surface (524), when the lock core (4) moves upward, the first arc surface (43) contacts the second arc surface (523) of the first lock tooth (521), which can push the spoon-shaped lock tooth (5) upward along the second arc surface (523) of the first lock tooth (521), so that the first end (41) of the lock core (4) is clamped between the first lock tooth (521) and the second lock tooth (522), the first inclined surface (42) contacts the second inclined surface of the first lock tooth (521), which locks the first end (41) of the lock core (4) so that it cannot move downward; or when the lock core (4) continues to move upward, the first arc surface (43) contacts the second arc surface (523) of the second lock tooth (522), which can push the spoon-shaped lock tooth (5) upward along the second arc surface (523) of the second lock tooth (522), so that the first end (41) of the lock core (4) is clamped behind the second lock tooth (522), the first inclined surface (42) contacts the second inclined surface of the second lock tooth (522), which locks the first end (41) of the lock core (4) so that it cannot move downward. The opening shape of the lock hole (3) is gradually reduced in width from bottom to top, the top is arc-shaped, the middle of the opening shape of the lock hole (3) is a transition zone (31) which is gradually narrowed in width from bottom to top, the end has an arc segment (32) and a semicircular arc end (33) which are in communication with the transition zone (31), the semicircular arc end (33) is obliquely arranged on one side of the end, and the arc degree of the semicircular arc end (33) is smaller than that of the arc segment (32).

2. The adjustable fall arrest device of claim 1, wherein, After pressing the pressing tongue (53), the front end of the spoon-shaped lock tooth (5) moves backward, and the lock core (4) can be separated from the spoon-shaped lock tooth (5) limit, and then move downward to reset.

3. The adjustable fall arrest device of claim 1, wherein, The spoon-shaped lock tooth (5) and the lock core (4) are integrally formed.

4. The adjustable fall arrest device of claim 1, wherein, The handle part (1) is provided with a mounting hole (22) at the tail end, and the mounting hole (22) is used for mounting a safety rope.

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