CN214435954U - Lower anti-device for preventing self-locking device from being separated from T-shaped guide rail - Google Patents

Abstract

The utility model relates to the technical field of safety protection equipment, and discloses a lower prevention device for preventing a self-locking device from falling off a T-shaped guide rail, the lower prevention device is arranged at the lower end of the T-shaped guide rail, the device comprises a limit plate, a baffle plate and a torsion spring, wherein the lower end of the baffle plate is abutted against a stop block when the torsion spring is in a normal state, when the worker needs to install the falling protector on the T-shaped guide rail, the baffle plate is rotated to be parallel to the limiting plate, so that the baffle plate avoids a space for the falling protector to be arranged on the T-shaped guide rail and slides the falling protector to the position above the baffle plate, then the baffle plate is loosened, the baffle plate is reset under the action of the elasticity of the torsion spring, at the moment, the lower end of the baffle plate is abutted against the stop block, the upper end of the baffle plate is abutted against the lower end of the falling protector, the falling protector is supported on the baffle plate, therefore, the falling protector is prevented from easily slipping from the lowest end of the T-shaped guide rail during initial ascending, and the personal safety of operators can be effectively ensured.

Description

Lower anti-device for preventing self-locking device from being separated from T-shaped guide rail

Technical Field

The utility model relates to a safety protection equipment's technical field especially relates to a prevent that auto-lock ware deviates from lower anti-device of T type guide rail.

Background

In the construction and maintenance of the power transmission and distribution line, operators are often required to climb a ladder or an equipment framework to climb an electric power iron tower for operation, protection is achieved through the equipped safety rope and the self-locking device (also called a falling protector) sliding on the guide rail, and when the body of the operators is out of balance and a falling dangerous situation occurs, the falling protector is locked on the guide rail, so that accidents of the operators are avoided.

The guide rail is installed on electric power iron tower, and the lower extreme of current guide rail does not have corresponding down to prevent the device, leads to the effect personnel when the operating personnel just goes up electric power iron tower with the safety hook after installing the guide rail on, because the safety rope on the safety hook is soft, the safety hook slips from the lower extreme of guide rail easily, and then influences operating personnel's personal safety.

Disclosure of Invention

The utility model aims at providing a prevent that auto-lock ware deviates from lower anti-device of T type guide rail to when solving current safety hook and installing to the guide rail, when operation initial position, the safety hook drops and then influences the problem of operation personnel's safety from the lower extreme of guide rail easily, and simple structure, the practicality is strong.

In order to solve the problem, the utility model provides a prevent that auto-lock ware deviates from lower anti-device of T type guide rail, including T type guide rail and sliding fit in safety hook on the T type guide rail, prevent the device setting down and be in the lower extreme of T type guide rail, prevent the device down and include limiting plate, baffle and torsional spring, the limiting plate is located the lateral part of T type guide rail and follow the length direction of T type guide rail arranges, be equipped with the dog on the limiting plate, the baffle is rotationally located on the limiting plate, work as the lower extreme butt of baffle in when on the dog, the upper end butt of baffle in the lower extreme of safety hook, turn round the spring housing and locate the center of rotation of baffle, just the first end of torsional spring connect in the baffle, the second end of torsional spring connect in the dog.

Further, the first end of torsional spring pass the face of baffle with the baffle is connected, the second end of torsional spring form with dog complex portion of bending.

Furthermore, the stop block is provided with a stop groove capable of accommodating the second end of the torsion spring.

Furthermore, the baffle is triangular, a first right-angle side of the baffle is perpendicular to the sliding direction of the falling protector, a second right-angle side of the baffle is parallel to the sliding direction of the falling protector, and the upper end of the second right-angle side is provided with an abutting part which is abutted against the lower end of the falling protector.

Further, the abutting portion has an arc shape.

Furthermore, the limiting plate is provided with a protruding part protruding from one side edge of the limiting plate, and the stop block is arranged on the protruding part.

Furthermore, a groove portion is arranged on the limiting plate and is close to the protruding portion, and when the baffle rotates, the first end of the torsion spring moves along the outer contour between the protruding portion and the groove portion.

Furthermore, the two ends of the limiting plate are connected with the T-shaped guide rail through square neck bolts, and the baffle is rotatably connected with the limiting plate through a rotating shaft.

Further, the limiting plate is of a sheet metal structure.

The utility model provides a prevent that auto-lock ware deviates from lower anti-device of T type guide rail, prevent the device setting at the lower extreme of T type guide rail down, it specifically includes the limiting plate, baffle and torsional spring, when the torsional spring normal condition, the lower extreme butt of baffle is on the dog, when the staff need install the safety hook to T type guide rail on, rotate the baffle to parallel with the limiting plate, make the baffle dodge the space and supply the safety hook to install to T type guide rail and slip safety hook to baffle top position department, then loosen the baffle, under the spring action of torsional spring, the baffle resets, at this moment, the lower extreme butt of baffle is on the dog, the upper end butt is at the lower extreme of safety hook, the safety hook is supported on the baffle, thereby the safety hook is from the lower extreme slippage of T type guide rail easily when avoiding initial ascending, can effectively guarantee operation personnel's personal safety.

Drawings

Fig. 1 is a schematic structural view of a lower anti-disengaging device for preventing the auto-lock device from disengaging from the T-shaped guide rail in the embodiment of the present invention.

Fig. 2 is a front view of the limiting plate in the embodiment of the present invention.

Fig. 3 is a side view of the limiting plate in the embodiment of the present invention.

In the figure, 1, T-shaped guide rail; 2. a safety catch; 3. a defense device; 301. a limiting plate; 302. a baffle plate; 303. a torsion spring; 304. a stopper; 305. a baffle groove; 306. an abutting portion; 307. a projection; 308. a groove part; 309. a square neck bolt; 310. a rotating shaft.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Referring to fig. 1 to 3, a lower prevention device for preventing a self-locking device from falling off a T-shaped guide rail according to an embodiment of the present invention is schematically shown, which includes a T-shaped guide rail and a safety hook 2 slidably fitted on the T-shaped guide rail, the lower prevention device 3 is disposed at a lower end of the T-shaped guide rail to prevent the safety hook 2 from slipping off the lower end of the T-shaped guide rail in an initial state, the lower prevention device 3 includes a limiting plate 301, a baffle 302 and a torsion spring 303, the limiting plate 301 is disposed at a lateral portion of the T-shaped guide rail and arranged along a length direction of the T-shaped guide rail, the limiting plate 301 is disposed at the lateral portion of the T-shaped guide rail to avoid affecting normal sliding of the safety hook 2 on the T-shaped guide rail, interference is reduced, the baffle 301 is provided with a stopper 304, the baffle 302 is rotatably disposed on the limiting plate 301, generally, both ends of the limiting plate 301 are connected with the T-shaped guide rail through a square neck bolt 309, the baffle 302 is rotatably connected with the limiting plate 301 through a rotating shaft 310, when the lower end of the baffle 302 abuts against the stop block 304, the upper end of the baffle 302 abuts against the lower end of the safety hook 2, the torsion spring 303 is sleeved on the rotation center of the baffle 302, the first end of the torsion spring 303 is connected to the baffle 302, and the second end of the torsion spring 303 is connected to the stop block 304.

Specifically, when the torsion spring 303 is in a normal state, the lower end of the baffle 302 abuts against the stop block 304, when a worker needs to install the safety hook 2 on the T-shaped guide rail, the baffle 302 is rotated to be parallel to the limiting plate 301, so that the baffle 302 avoids a space for the safety hook 2 to be installed on the T-shaped guide rail and slide the safety hook 2 to the position above the baffle 302, then the baffle 302 is loosened, under the elastic action of the torsion spring 303, the baffle 302 resets, at the moment, the lower end of the baffle 302 abuts against the stop block 304, the upper end abuts against the lower end of the safety hook 2, and the safety hook 2 is supported on the baffle 302, so that the safety hook 2 is prevented from slipping from the lowest end of the T-shaped guide rail easily during initial ascending, and the personal safety of the worker can be effectively guaranteed.

Further, the first end of torsional spring 303 passes the face of baffle 302 and is connected with baffle 302, and the second end of torsional spring 303 forms the portion of bending with dog 304 complex, so, the mountable when baffle 302 rotates to being parallel with limiting plate 301 or dismantle safety hook 2, and after the installation or dismantlement finished, baffle 302 can return automatically under torsional spring 303's limiting effect, its simple structure, and the operation is convenient. In order to ensure the supporting function of the stopper 304 on the baffle 302, the stopper 304 is provided with a stopping groove 305 capable of accommodating the second end of the torsion spring 303 to prevent the torsion spring 303 from falling off.

This embodiment, baffle 302 are triangle-shaped, and its first right-angle side is mutually perpendicular with the slip direction of safety hook 2, and the second right-angle side is parallel with the slip direction of safety hook 2, and the upper end on second right-angle side is equipped with the butt portion 306 of thinking the butt with the safety hook 2 lower extreme, so, the staff can stir the tip of triangle-shaped baffle 302 with the hand and rotate, and its operation is more convenient. Preferably, the abutment 306 has a circular arc shape.

In this embodiment, the limiting plate 301 is provided with a protrusion 307 protruding from one side of the limiting plate, and the stopper 304 is disposed on the protrusion 307, so as to avoid increasing the width of the whole limiting plate 301 and further generating interference on the normal sliding of the safety hook 2.

Preferably, the limiting plate 301 is provided with a groove portion 308, the groove portion 308 is disposed close to the protrusion portion 307, and when the baffle 302 rotates, the first end of the torsion spring 303 moves along the outer contour between the protrusion portion 307 and the groove portion 308, so that when the baffle 302 rotates, the movement of the torsion spring 303 is facilitated, and meanwhile, the structural interference is reduced, and the smooth rotation of the baffle 302 is ensured.

The limiting plate 301 in this embodiment is preferably a sheet metal structure, the stopper 304 is integrally formed with the limiting plate 301, and the stopper groove 305 on the stopper 304 is a bending groove provided on the limiting plate 301.

It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (9)

1. The utility model provides a prevent that auto-lock ware deviates from lower anti-device of T type guide rail, include T type guide rail and sliding fit in safety hook on the T type guide rail, prevent the device setting down and be in the lower extreme of T type guide rail, its characterized in that, prevent the device down and include limiting plate, baffle and torsional spring, the limiting plate is located the lateral part of T type guide rail and edge the length direction of T type guide rail arranges, be equipped with the dog on the limiting plate, the baffle rotationally locates on the limiting plate, work as the lower extreme butt of baffle in when on the dog, the upper end butt of baffle in the lower extreme of safety hook, the torsional spring cover is located the center of rotation of baffle, just the first end of torsional spring connect in the baffle, the second end of torsional spring connect in the dog.

2. The lower anti-falling device for preventing the auto-lock device from falling off the T-shaped guide rail as claimed in claim 1, wherein the first end of the torsion spring passes through the plate surface of the baffle plate to be connected with the baffle plate, and the second end of the torsion spring forms a bending part matched with the stop block.

3. The lower anti-disengagement device of the T-shaped guide of claim 2, wherein the stop is provided with a slot for receiving the second end of the torsion spring.

4. The lower anti-falling device for preventing the auto-lock from falling off the T-shaped guide rail as claimed in claim 3, wherein the baffle is in a triangular shape, a first right-angle side of the baffle is perpendicular to the sliding direction of the falling protector, a second right-angle side of the baffle is parallel to the sliding direction of the falling protector, and the upper end of the second right-angle side is provided with an abutting part which is abutted against the lower end of the falling protector.

5. The underrun prevention apparatus for preventing the self-locker from coming off the T-shaped rail as claimed in claim 4, wherein said abutting portion has a circular arc shape.

6. The downward preventing device for preventing the auto-locker from falling off the T-shaped guide rail as claimed in claim 5, wherein the limiting plate is provided with a protrusion protruding from one side thereof, and the stopper is provided on the protrusion.

7. The anti-derailment device of claim 6, wherein the limiting plate has a recessed portion adjacent to the protrusion, and the first end of the torsion spring moves along an outer contour between the protrusion and the recessed portion when the baffle rotates.

8. The lower anti-disengaging device for preventing the auto-locker from disengaging from the T-shaped guide rail as claimed in claim 7, wherein both ends of the limiting plate are connected with the T-shaped guide rail by square neck bolts, and the baffle is rotatably connected with the limiting plate by a rotating shaft.

9. The lower anti-disengaging device for preventing the auto-locker from disengaging from the T-shaped guide rail as claimed in claim 8, wherein the limiting plate is of a sheet metal structure.

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