CN219375916U - Adjustable anti-falling device capable of adapting to thickness of hooking suspender - Google Patents

Abstract

The utility model discloses an adjustable anti-falling device capable of adapting to the thickness of a hook hanging rod, which comprises a handle part and a lock body part positioned above the handle part, wherein a lock hole is formed in the middle of the lock body part, a lock cylinder is rotatably arranged in the lock head part in a shaft type, is positioned at one side of the lock hole and is U-shaped and can rotate in a lock hole area, the middle of a spoon-shaped lock tooth is axially arranged in the lock body part through a torsion spring and is positioned at the other side of the lock hole, at least one lock tooth is arranged at the upper end of the spoon-shaped lock tooth in a head of the lock tooth, a pressing tongue with the other end in a bent shape is exposed out of the lock body part, and under the action of the torsion spring, the lock tooth end is inclined downwards and the pressing tongue is tilted up to prop up a lock body shell; the opening shape of the lock hole is gradually reduced from the width of the opening from bottom to top, and the top of the lock hole is arc-shaped. The device can adapt to the current common foot nail type, has the function of self-adapting to the clamping part according to the thickness of the foot nail and keeping clamping, and further improves the applicability and the safety of the falling prevention tool.

Description

Adjustable anti-falling device capable of adapting to thickness of hooking suspender

Technical Field

The utility model relates to the technical field of safety protection tools for preventing falling during tower climbing maintenance of a power transmission line in a power system, in particular to an adjustable falling prevention device capable of adapting to the thickness of a hooking suspender.

Background

In the prior art, when a transmission line is overhauled, a transmission line iron tower needs to be climbed, and the currently commonly used anti-falling tool is an anti-falling double-extension protection rope and double-hook protection anti-falling tool, and a portable anti-falling tool for climbing the transmission line, which is disclosed as CN208448460U in the prior application of the applicant; however, the climbing protection hook nails arranged on the towers are different in thickness in different areas or different periods, that is, if the falling prevention tool is used before the falling prevention hook nails are different in thickness, the condition of the uncomfortableness of the sizes of the hanging holes possibly occurs, and once the hanging occurs, the holes are unmatched with the nails, so that the climbing protection hook nails cannot be stably locked, and potential safety hazards easily occur.

Disclosure of Invention

In order to solve the defects in the prior art, the applicant provides a falling-preventing tool capable of adaptively matching the thickness of the foot nail, which can be adapted to the type of the foot nail commonly used at present, has the function of adaptively clamping the part according to the thickness of the foot nail and keeping clamping, and further improves the applicability and the safety of the falling-preventing tool. Specifically, the utility model is realized as follows:

an adjustable anti-falling device capable of adapting to the thickness of a hook hanging rod comprises a handle part and a lock body part positioned above the handle part, wherein a lock hole is formed in the middle of the lock body part, a lock cylinder is arranged in the lock body part in a rotatable shaft type, is positioned on one side of the lock hole and is U-shaped, and can rotate in a lock hole area. The middle part of the spoon-shaped lock tooth is arranged in the lock body part in a shaft type through a torsion spring and is positioned at the other side of the lock hole, at least one lock tooth is arranged at the upper end of the spoon-shaped lock tooth, a bending pressing tongue at the other end is exposed out of the lock body part, and under the action of the torsion spring, the lock tooth end is inclined downwards and the pressing tongue is tilted to prop against the lock body part shell in a normal state; the opening shape of the lock hole is gradually reduced from the width of the opening from bottom to top, and the top is arc-shaped.

Further, the lock core is integrated into one piece's U type or C type structure, and its middle part passes lock body portion installation through the axis body, and U type or C type structure's end can rotate in lockhole regional top, and the first end of top is provided with first inclined plane in the below one side inwards, and the top side of outwards is first cambered surface.

Further, the upper end of the spoon-shaped lock tooth is provided with two lock teeth: the first lock teeth and the second lock teeth are sequentially arranged from bottom to top, and in a normal state, the first lock teeth and the second lock teeth incline obliquely downwards; the first end of the lock cylinder can be clamped between the first lock tooth and the second lock tooth or clamped after the second lock tooth.

Further, the spoon-shaped lock teeth are mirror-image S-shaped, the lower parts of the first lock teeth and the second lock teeth are respectively in a second cambered surface and a second inclined surface, when the lock cylinder moves upwards, the first cambered surface contacts with the second cambered surface of the first lock teeth, the spoon-shaped lock teeth can be pushed upwards along the second cambered surface of the first lock teeth, so that the first end of the lock cylinder is clamped between the first lock teeth and the second lock teeth, the first inclined surface contacts with the second inclined surface of the first lock teeth, and the first end of the lock cylinder is locked so as not to move downwards; or when the lock core continues to move upwards, the first cambered surface is contacted with the second cambered surface of the second lock tooth, the spoon-shaped lock tooth can be pushed upwards along the second cambered surface of the second lock tooth, so that after the first end of the lock core is clamped into the second lock tooth, the first inclined surface is contacted with the second inclined surface of the second lock tooth, and the first end of the lock core is locked so as to be incapable of moving downwards.

Further, the middle part of the opening shape of the lock hole is a transition zone with the width gradually narrowed from bottom to top, the end head is provided with an arc section communicated with the transition zone and a semicircular end, the semicircular end is obliquely arranged on one side of the end head, and the radian of the semicircular end is smaller than that of the arc section.

Further, the side surface of the lock body in the area where the pressing tongue is located is provided with a corresponding opening, and the pressing tongue can displace within the range of the opening; after the pressing tongue is pressed, the front end of the spoon-shaped lock tooth moves backwards, and the lock cylinder can be separated from the limit of the spoon-shaped lock tooth and moves downwards to reset.

Furthermore, the spoon-shaped lock teeth and the lock cylinder are integrally formed.

Further, a mounting hole is formed in the tail end of the handle portion, and the mounting hole is used for mounting a safety rope.

The working principle and beneficial effects of the utility model are introduced: the adjustable anti-falling device comprises three opening areas, a round hole with a larger bottom and a foot nail in a sleeve, wherein the foot nail can be easily sleeved during climbing, the anti-falling device is pulled downwards, the foot nail enters a transition area with a gradually narrowed second width through the larger round hole area and finally enters a locking hole area at the top, the first end of a lock cylinder is clamped by the foot nail to move upwards and rotate according to the thickness of the foot nail in the arc section with the corresponding width, the second end is clamped by the foot nail to lift upwards along with rotation, and finally is locked by a spoon-shaped locking tooth and cannot rotate reversely, so that the foot nail is firmly clamped, the foot nail is clamped tightly with higher force, the effect of safety anti-falling is achieved, and a safety rope of a safety harness worn by an operator is required to be installed on the anti-falling device. The structure of the utility model can clamp the foot nails with different thicknesses, the sectional arc groove structure at the end part of the lock hole can provide clamping stress for the foot nails with different thicknesses, and when the foot nails are required to be taken down, the tongue is pressed down by hands, so that the spoon-shaped lock teeth are moved back to release the lock core, thereby being capable of moving the lock body upwards and being taken out from the foot nails. The structure of the utility model is reliable and stable, the lock tooth structure with self-locking is provided, the lock core is effectively prevented from rotating, the clamping range can be continuously locked along one direction and cannot be enlarged, the lock tooth structure is lifted up, the lock core can be clamped by the first gear when the pins are thicker, the lock core can be further moved upwards when the pins are thicker, the second end is clamped into the section of the second gear, the effect of multi-stage gear adjustment is realized, the clamping gear can be adaptively adjusted according to the thickness of the pins to be clamped, the check function is provided, the stable and reliable pin clamping effect is provided, when the pins need to be pulled out, the pressing tongue is pressed down, the lock tooth structure is lifted up, the lock core is released, the pins can be retracted into the lock hole area after the pins are reset, the next pins are easy to pull out, and the next stage of safe lock sleeve action is convenient to insert. The utility model has the advantages of small and reasonable structure, convenient operation, stable and safe structure, and on the basis of the self-adaptive clamping function, the practicability and usability are improved on the premise of keeping the safety and reliability, the operation and the use are convenient, and the utility model can be adapted to various types of spikes.

Drawings

FIG. 1 is a front view of an adjustable anti-drop device adapted to the thickness of a hooked boom;

FIG. 2 is a schematic diagram of the structure of a lock cylinder and lock teeth of an adjustable anti-falling device capable of adapting to the thickness of a hooking boom in the inner structure for clamping a foot nail with a large diameter;

FIG. 3 is a schematic diagram of the structure of the lock core and the lock teeth of the adjustable anti-falling device which can adapt to the thickness of the hooking boom in the inner structure for clamping the small-diameter foot nail;

FIG. 4 is a schematic diagram showing the structure of the rotation interlocking of the lock cylinder and the lock teeth of the internal structure of the adjustable anti-falling device which can adapt to the thickness of the hooking boom;

FIG. 5 is a perspective view of an adjustable anti-falling device capable of adapting to the thickness of a hooked boom;

fig. 6 is a schematic diagram showing an operation and use state of an adjustable anti-falling device capable of adapting to the thickness of a hooking boom.

Wherein: the novel lock comprises a handle part 1, a lock body part 2, a lock hole 3, a lock core 4, a lock tooth 5, a torsion spring 51, a lock tooth 52, a pressing tongue 53, a first end 41, a first inclined surface 42, a first cambered surface 43, a first lock tooth 521, a second lock tooth 522, a second cambered surface 523, a second inclined surface 524, a transition area 31, a 32 cambered section, a 33 semicircular arc end 33, an opening 21 and a 22 mounting hole.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

Example 1: an adjustable anti-falling device capable of adapting to the thickness of a hook hanging rod comprises a handle part 1 and a lock body part 2 positioned above the handle part 1, wherein a lock hole 3 is formed in the middle of the lock body part 2, a lock cylinder 4 is arranged in the lock body part in a rotatable shaft type, is positioned on one side of the lock hole 3 and is U-shaped, and can rotate in the area of the lock hole 3. The middle part of the spoon-shaped lock tooth 5 is arranged in the lock body 2 in a shaft type through a torsion spring 51 and positioned at the other side of the lock hole 3, at least one lock tooth 52 is arranged on the upper end of the spoon-shaped lock tooth 5, a pressing tongue 53 with the other end in a bending shape is exposed out of the lock body 2, and under the action of the torsion spring 51 in a normal state, the end of the lock tooth 52 is inclined downwards, and the pressing tongue 53 is tilted to prop against the outer shell of the lock body 2; the opening shape of the lock hole 3 is gradually reduced from the bottom to the top, and the top is arc-shaped. Under the action of the torsion spring 51, the spoon-shaped lock teeth 5 always keep the downward head, the head of the spoon-shaped lock teeth can be tilted only by operating the pressing tongue 53, and the tilted head can release the lock cylinder 4 to rotate. The lock core 4 is used for clamping the pins entering the lock hole 3, the pins can drive the lock core 4 to rotate relative to the position change in the lock hole 3, and the rotation of the lock core 4 can be locked by the lock teeth 52, so that the pins can be clamped only gradually until the pins are positioned at the extreme end of the lock hole 3 and cannot rise continuously.

Preferably, the lock cylinder 4 is in an integrally formed U-shaped or C-shaped structure, the middle of the lock cylinder is installed through the lock body 2 by a shaft body, the end head of the U-shaped or C-shaped structure can rotate above the area of the lock hole 3, a first inclined surface 42 is arranged on the inward lower side of the upper first end head 41, and a first cambered surface 43 is arranged on the outward upper side. The upper end of the spoon-shaped lock tooth 5 is provided with two lock teeth 52: a first lock tooth 521 and a second lock tooth 522 are sequentially arranged from bottom to top, and the first lock tooth 521 and the second lock tooth 522 incline obliquely downwards in a normal state; the first end 41 of the lock cylinder 4 can be snapped between the first lock tooth 521 and the second lock tooth 522 or after the second lock tooth 522. When the first end 41 of the lock cylinder 4 contacts with the first lock tooth 521, the first inclined surface 42 contacts with the second cambered surface 523, the spoon-shaped lock tooth 5 can be pushed up along the second cambered surface 523 until the whole first end 41 completely enters the lock tooth 52, the spoon-shaped lock tooth 5 is reset, the first cambered surface 43 cannot push the second inclined surface block to move upwards, so that unidirectional clamping is realized, the lock cylinder 4 is locked, the spoon-shaped lock tooth 5 is tilted upwards until the pressing tongue 53 is pressed, the lock cylinder 4 is released, and the lock cylinder 4 can be reset.

Preferably, the spoon-shaped lock teeth 5 are mirror-image S-shaped, the lower parts of the first lock teeth 521 and the second lock teeth 522 are respectively provided with a second arc surface 523 and a second inclined surface 524, when the lock cylinder 4 moves upwards, the first arc surface 43 contacts with the second arc surface 523 of the first lock teeth 521, the spoon-shaped lock teeth 5 can be pushed upwards along the second arc surface 523 of the first lock teeth 521, the first end 41 of the lock cylinder 4 is clamped between the first lock teeth 521 and the second lock teeth 522, the first inclined surface 42 contacts with the second inclined surface of the first lock teeth 521, and the first end 41 of the lock cylinder 4 is locked so as not to move downwards; or when the lock cylinder 4 continues to move upwards, the first cambered surface 43 contacts with the second cambered surface 523 of the second lock tooth 522, and the spoon-shaped lock tooth 5 can be pushed upwards along the second cambered surface 523 of the second lock tooth 522, so that after the first end 41 of the lock cylinder 4 is clamped into the second lock tooth 522, the first inclined surface 42 contacts with the second inclined surface of the second lock tooth 522, and the first end 41 of the lock cylinder 4 is locked so as not to move downwards. Preferably, the middle part of the opening shape of the lock hole 3 is a transition area 31 with the width gradually narrowed from bottom to top, the end is provided with an arc section 32 and a semicircular arc end 33 which are communicated with the transition area 31, the semicircular arc end 33 is obliquely arranged on one side of the end, and the radian of the semicircular arc end 33 is smaller than that of the arc section 32. The structure realizes the control of the lock body of the gear, and can adapt to the foot nails with different thickness degrees.

The side surface of the lock body 2 in 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 range of the opening 21; after the pressing tongue 53 is pressed, the front end of the spoon-shaped lock tooth 5 moves backwards, and the lock cylinder 4 can deviate from the limit of the spoon-shaped lock tooth 5 and move downwards to reset. The spoon-shaped lock teeth 5 and the lock cylinder 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.

It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.

Claims (8)

1. The utility model provides an adjustable anti-falling device that can adapt to hook jib thickness, includes handle portion (1) and is located lock body portion (2) of handle portion (1) top, and lockhole (3), its characterized in that have been seted up at the middle part of lock body portion (2):

the lock core (4) is arranged in the lock head part in a rotatable shaft type, is positioned at one side of the lock hole (3) and is U-shaped, can rotate in the area of the lock hole (3),

the spoon-shaped lock teeth (5) are axially arranged in the lock body (2) through torsion springs (51) at the middle part of the spoon-shaped lock teeth, are positioned at the other side of the lock hole (3), at least one lock tooth (52) is arranged at the upper end of each spoon-shaped lock tooth (5), a bending-shaped pressing tongue (53) at the other end of each spoon-shaped lock tooth is exposed out of the lock body (2), and under the action of the torsion springs (51), the ends of the lock teeth (52) incline downwards and the pressing tongues (53) tilt up to prop against the outer shell of the lock body (2) in a normal state;

the opening shape of the lock hole (3) is gradually reduced from the width of the opening from bottom to top, and the top is arc-shaped.

2. The adjustable anti-falling device according to claim 1, wherein the lock cylinder (4) is of an integrally formed U-shaped or C-shaped structure, the middle part of the lock cylinder is installed through the lock body (2) through a shaft body, the end head of the U-shaped or C-shaped structure can rotate above the area of the lock hole (3), a first inclined surface (42) is arranged on the inward lower side of the upper first end head (41), and the outward upper side of the upper first inclined surface (43).

3. The adjustable fall protection device according to claim 2, characterized in that the upper end of the spoon-shaped locking tooth (5) is provided with two locking teeth (52): a first lock tooth (521) and a second lock tooth (522) are arranged in sequence from bottom to top, and the first lock tooth (521) and the second lock tooth (522) incline downwards in an inclined manner in a normal state; the first end (41) of the lock cylinder (4) can be clamped between the first lock tooth (521) and the second lock tooth (522) or clamped behind the second lock tooth (522).

4. The adjustable anti-falling device according to claim 3, wherein the spoon-shaped lock teeth (5) are mirror-image S-shaped, the lower parts of the first lock teeth (521) and the second lock teeth (522) are respectively provided with a second arc surface (523) and a second inclined surface (524), when the lock cylinder (4) moves upwards, the first arc surface (43) is contacted with the second arc surface (523) of the first lock teeth (521), the spoon-shaped lock teeth (5) can be pushed upwards along the second arc surface (523) of the first lock teeth (521), the first end (41) of the lock cylinder (4) is clamped between the first lock teeth (521) and the second lock teeth (522), the first inclined surface (42) is contacted with the second inclined surface of the first lock teeth (521), and the first end (41) of the lock cylinder (4) cannot move downwards; or (b)

When the lock cylinder (4) continues to move upwards, the first cambered surface (43) is in contact with the second cambered surface (523) of the second lock tooth (522), and the spoon-shaped lock tooth (5) can be pushed upwards along the second cambered surface (523) of the second lock tooth (522), so that after the first end (41) of the lock cylinder (4) is clamped into the second lock tooth (522), the first inclined surface (42) is in contact with the second inclined surface of the second lock tooth (522), and the first end (41) of the lock cylinder (4) is locked so as not to move downwards.

5. The adjustable anti-falling device according to any one of claims 1 to 4, wherein the middle part of the opening shape of the lock hole (3) is a transition zone (31) with the width gradually narrowed from bottom to top, an arc-shaped section (32) communicated with the transition zone (31) and a semicircular arc end (33) are arranged at the end head, the semicircular arc end (33) is obliquely arranged at one side of the end head, and the radian of the semicircular arc end (33) is smaller than that of the arc-shaped section (32).

6. The adjustable anti-falling device according to claim 1, wherein the side surface of the lock body (2) in 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 range of the opening (21); after the pressing tongue (53) is pressed, the front end of the spoon-shaped lock tooth (5) moves backwards, and the lock cylinder (4) can deviate from the limit of the spoon-shaped lock tooth (5) and move downwards to reset.

7. The adjustable fall protection device according to claim 1, characterized in that the spoon-shaped lock teeth (5) and the lock cylinder (4) are all integrally formed.

8. The adjustable fall protection device according to claim 1, characterized in that the tail end of the handle part (1) is provided with a mounting hole (22), the mounting hole (22) being used for mounting a safety rope.