CN216512397U

CN216512397U - Can spacing gravity lifting hook safety be detained

Info

Publication number: CN216512397U
Application number: CN202122585519.9U
Authority: CN
Inventors: 叶飞; 徐岳磊; 莫拉克
Original assignee: JIANGSU YUXING FILM TECHNOLOGY CO LTD
Current assignee: JIANGSU YUXING FILM TECHNOLOGY CO LTD
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-05-13
Anticipated expiration: 2031-10-26

Abstract

The utility model relates to the technical field of crane hooks, in particular to a limitable gravity hook safety buckle, wherein an inner buckle ring and an inner curved surface of a hook body form a closed circle, an outer buckle ring is abutted against the outer surface of the hook body, a locking mechanism is arranged at a pin shaft, gear teeth with a first wedge surface are uniformly distributed at the outer circumference of a locking wheel, a second wedge surface is arranged at the end part of an elastic limit stop, a through hole is arranged on the stop, a third wedge surface is arranged at the bottom of the elastic limit pin, in the rotating process of the locking wheel, the first wedge surface of the gear teeth is abutted against the second wedge surface at the end part of the elastic limit stop to limit the rotation of the locking wheel, the elastic limit pin is vertically arranged above the through hole, when the elastic limit pin is pressed down, the third wedge surface at the bottom of the elastic limit pin is abutted against the inner wall of the through hole to drive the elastic limit stop to move, so that the elastic limit stop is separated from the locking wheel, and the locking of the safety buckle is realized through the cooperation effect of the gear teeth with the elastic stop, the rope can be conveniently and smoothly hung in the hook body, and then the elastic limiting pin is utilized to unlock the hook body.

Description

Can spacing gravity lifting hook safety be detained

Technical Field

The utility model relates to the technical field of crane lifting hooks, in particular to a limiting gravity lifting hook safety buckle.

Background

A hook is the most common type of lifting device in a hoisting machine, and is often suspended from a steel cable of the hoisting machine by means of a pulley block or the like. In order to solve the problem that the heavy object lifted by the lifting hook accidentally slips off, a safety buckle for preventing slipping off is usually arranged at the opening part of the lifting hook.

For example, the chinese patent with application number CN201320884029.1, application date of 2013, 12 and 27 entitled "a gravity hook safety buckle", which is used to seal the opening of a hook under the normal action of gravity when no external force is applied, so that the safety buckle and the inner curved surface of the hook form a closed circle to prevent a heavy object on the hook from falling off. However, the pin shaft of the safety buckle is lack of a limiting mechanism, the position of the safety buckle monomer cannot be limited, when a heavy object is hung, the safety buckle monomer under the action of gravity can prevent the heavy object from being hung, or after the heavy object is hung, the safety buckle monomer is blocked by the heavy object and is not reset under the action of gravity, so that the safety buckle and the lifting hook do not form a closed circle, and the anti-slipping effect cannot be achieved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect that the conventional safety buckle is lack of a limiting component, the utility model provides a gravity lifting hook safety buckle capable of limiting, and the problem is solved by arranging an elastic limiting mechanism at a pin shaft.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a gravity lifting hook safety buckle capable of limiting comprises a lifting ring and a safety buckle, wherein the lifting hook comprises a hook body and a connecting column, the hook body and the connecting column are integrally formed, the safety buckle comprises an inner snap ring, an outer snap ring and a pin shaft, the inner snap ring and the outer snap ring are fixedly connected with the pin shaft, the inner snap ring is arranged inside the hook body, the outer snap ring is arranged outside the hook body, the pin shaft penetrates through the connecting column, the inner snap ring and the outer snap ring can rotate on the hook body around the axis direction of the pin shaft, the safety buckle seals the lifting hook under the action of self gravity, the inner snap ring and the inner curved surface of the hook body form a closed circle, and the outer snap ring is abutted against the outer surface of the hook body,

still including being used for the spacing locking mechanism of safety buckle, locking mechanism includes the locking wheel, elasticity limit stop and elasticity spacer pin, the outside circumference equipartition of locking wheel takes the teeth of a cogwheel of wedge face one, elasticity limit stop tip is equipped with wedge face two, it has the through-hole to open on the elasticity limit stop, elasticity spacer pin bottom is equipped with wedge face three, the locking wheel is fixed to be set up at the round pin epaxial, it is rotatory that messenger's round pin axle can drive the locking wheel, elasticity limit stop level sets up outside the locking wheel, when the locking wheel rotates the in-process, the wedge face one of the teeth of a cogwheel supports with the wedge face two of elasticity limit stop tip and leans on, the restriction locking wheel rotates, the vertical setting of elasticity spacer pin is in the through-hole top, when the elasticity limit pin pushes down, wedge face three of elasticity limit pin bottom runs through the through-hole, drive elasticity limit stop displacement, make elasticity limit stop and locking wheel break away from.

Furthermore, the side face of the connecting column is provided with a mounting cavity capable of accommodating the locking wheel, and the pin shaft penetrates through the mounting cavity.

Furthermore, the outer side of the mounting cavity is provided with a mounting block capable of accommodating an elastic limit stop and an elastic limit pin.

Furthermore, a locking groove for the horizontal movement of the elastic limit stop and an unlocking groove for the longitudinal movement of the elastic limit pin are formed in the mounting block, the locking groove is communicated with the mounting cavity, and the unlocking groove is communicated with the locking groove.

Furthermore, the elastic limit stop comprises a stop block and a first spring, and the stop block is movably arranged in the locking groove through the first spring.

Furthermore, the elastic limiting pin comprises a pin shaft and a second spring, the pin shaft is movably arranged in an unlocking groove above the elastic limiting stop block through the second spring, and a limiting ring for preventing the pin shaft from being separated is arranged on the upper edge of the unlocking groove.

The safety buckle has the advantages that the locking of the safety buckle is realized through the matching action of the gear teeth with the wedge surfaces and the elastic limit stop, so that the rope can be smoothly hung in the hook body; through the cooperation of through-hole and elasticity spacer pin, carry out the unblock to the safety catch, under the self action of gravity of safety catch, close coupler body oral area, effectively prevent that the rope from deviating from the coupler body, guarantee the stability that the lifting hook used.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of the locked state of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a schematic view of the natural unlock state of the present invention;

FIG. 6 is an enlarged view at B in FIG. 5;

in the figure, 1, a lifting hook, 11, a hook body, 12, a connecting column, 121, a mounting cavity, 2, a safety buckle, 21, an inner retaining ring, 22, an outer retaining ring, 23, a pin shaft, 3, a locking mechanism, 31, a locking wheel, 311, a first wedge surface, 32, an elastic limit stop, 321, a second wedge surface, 322, a through hole, 323, a stop, 324, a first spring, 33, an elastic limit pin, 331, a third wedge surface, 332, a limit pin, 333, a second spring, 334, a limit ring, 4, a mounting block, 41, a locking groove and 42 an unlocking groove are arranged.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

As shown in fig. 1 and 2, a gravity lifting hook safety buckle capable of limiting comprises a lifting hook 1 and a safety buckle 2, wherein the lifting hook 1 comprises a hook body 11 and a connecting column 12, the hook body 11 and the connecting column 12 are integrally formed, the safety buckle 2 comprises an inner buckle ring 21, an outer buckle ring 22 and a pin shaft 23, the inner buckle ring 21 and the outer buckle ring 22 are fixedly connected with the pin shaft 23, the inner buckle ring 21 is arranged inside the hook body 11, the outer buckle ring 22 is arranged outside the hook body 11, the pin shaft 23 penetrates through the connecting column 12, the inner buckle ring 21 and the outer buckle ring 22 can rotate on the hook body 11 around the axis direction of the pin shaft 23, the safety buckle 2 seals the lifting hook 1 under the action of self gravity, the inner buckle ring 21 and the inner curved surface of the hook body 11 form a closed circle, and the outer buckle ring 22 abuts against the outer surface of the hook body 11. This safety buckle 2 structure is closed under the dead weight effect, forms a closed circle with the inner curved surface of coupler body 11 to fix the rope that hangs on coupler body 11, prevent that it from deviating from, convenient operation, and durable.

The safety buckle is characterized by further comprising a locking mechanism 3 for limiting the safety buckle 2, wherein the locking mechanism 3 comprises a locking wheel 31, an elastic limit stop 32 and an elastic limit pin 33, gear teeth with a first wedge surface 311 are uniformly distributed on the outer circumference of the locking wheel 31, a second wedge surface 321 is arranged at the end part of the elastic limit stop 32, a through hole 322 is formed in the elastic limit stop 32, a third wedge surface 331 is arranged at the bottom of the elastic limit pin 33, the locking wheel 31 is fixedly arranged on the pin shaft 23, so that the pin shaft 23 can drive the locking wheel 31 to rotate, the elastic limit stop 32 is horizontally arranged on the outer part of the locking wheel 31, when the locking wheel 31 rotates, the first wedge surface 311 of the gear teeth is abutted against the second wedge surface 321 at the end part of the elastic limit stop 32, the locking wheel 31 is limited to rotate, the elastic limit pin 33 is vertically arranged above the through hole 322, when the elastic limit pin 33 presses down, the third wedge surface 331 at the bottom of the elastic limit pin 33 penetrates through hole 322 to drive the elastic limit stop 32 to move, the elastic limit stopper 32 is disengaged from the locking wheel 31.

The installation cavity 121 that can hold locking wheel 31 is seted up to spliced pole 12 side, round pin axle 23 runs through installation cavity 121, the installation cavity 121 outside is equipped with the installation piece 4 that can hold elasticity limit stop 32 and elasticity spacer pin 33, installation piece 4 is connected with spliced pole 12 through unsmooth piece grafting mode, but set up in the installation piece 4 and supply the locking groove 41 of elasticity limit stop 32 horizontal migration and the groove 42 of separating that can supply elasticity spacer pin 33 longitudinal movement, locking groove 41 communicates with installation cavity 121, separating groove 42 and locking groove 41 intercommunication.

The elastic limit stopper 32 includes a stopper 323 and a first spring 324, and the stopper 323 is movably disposed in the locking groove 41 by the first spring 324. The stop 323 horizontally moves against the first wedge surface 311 of the gear teeth under the action of the first spring 324, and then compresses the first spring 324 to move and disengage from the gear teeth of the locking wheel 31 under the action of the limit pin 332.

The elastic limit pin 33 comprises a limit pin 332 and a second spring 333, the limit pin 332 is movably arranged in the unlocking groove 42 above the elastic limit stop 32 through the second spring 333, and the upper edge of the unlocking groove 42 is provided with a limit ring 334 for preventing the limit pin 332 from disengaging. During the longitudinal movement of the limiting pin 332, the bottom wedge surface three 331 passes through the through hole 322 on the stop 323 and is then drawn out of the through hole 322 under the resilience of the spring two 333.

As shown in fig. 3 and 4, when the safety buckle 2 needs to be opened to suspend the rope, the outer buckle 22 is manually pulled upwards around the pin 23 to drive the locking wheel 31 to rotate anticlockwise, so that the first wedge surface 311 of the gear tooth abuts against the second wedge surface 321 at the end of the elastic limit stop 32, the locking wheel 31 stops rotating under the action of the elastic limit stop 32, at this time, the first spring 324 is in an initial state, the position of the safety buckle 2 is fixed, and the hook body 11 is in an open state, so that the rope can be conveniently hung in the safety buckle.

As shown in fig. 5 and 6, after the rope is hung, the limit pin 332 is manually pressed down, the second spring 333 is pressed down by the limit pin 332, the third wedge surface 331 at the bottom of the limit pin 332 penetrates through the through hole 322 on the stop block 323, and under the abutting action of the third wedge surface 331 and the inner wall of the through hole 322, the stop block 323 is driven to press the first spring 324, the stop block 323 moves away from the locking wheel 31, so that the second wedge surface 321 is separated from the first wedge surface 311, and then the safety catch 2 hangs down under the action of self gravity to seal the hook body 11 to prevent the rope from falling off.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. A gravity hook safety buckle capable of limiting, which comprises a hook (1) and a safety buckle (2),

the lifting hook (1) comprises a hook body (11) and a connecting column (12), the hook body (11) and the connecting column (12) are integrally formed,

the safety buckle (2) comprises an inner buckle ring (21), an outer buckle ring (22) and a pin shaft (23), the inner buckle ring (21) and the outer buckle ring (22) are fixedly connected with the pin shaft (23),

the inner retaining ring (21) is arranged inside the hook body (11), the outer retaining ring (22) is arranged outside the hook body (11), the pin shaft (23) penetrates through the connecting column (12), so that the inner retaining ring (21) and the outer retaining ring (22) can rotate on the hook body (11) around the axis direction of the pin shaft (23), the safety buckle (2) seals the lifting hook (1) under the action of self gravity, the inner retaining ring (21) and the inner curved surface of the hook body (11) form a closed circle, and the outer retaining ring (22) is abutted against the outer surface of the hook body (11),

it is characterized by also comprising a locking mechanism (3) for limiting the safety buckle (2), wherein the locking mechanism (3) comprises a locking wheel (31), an elastic limit stop (32) and an elastic limit pin (33),

the outer circumference of the locking wheel (31) is uniformly provided with wheel teeth with a first wedge surface (311),

the end part of the elastic limit stop (32) is provided with a second wedge surface (321), the elastic limit stop (32) is provided with a through hole (322),

the bottom of the elastic limit pin (33) is provided with a third wedge surface (331),

the locking wheel (31) is fixedly arranged on the pin shaft (23), the pin shaft (23) can drive the locking wheel (31) to rotate, the elastic limit stop (32) is horizontally arranged outside the locking wheel (31), when the locking wheel (31) rotates, a first wedge surface (311) of a gear tooth is abutted against a second wedge surface (321) at the end part of the elastic limit stop (32) to limit the rotation of the locking wheel (31), the elastic limit pin (33) is vertically arranged above the through hole (322), and when the elastic limit pin (33) is pressed down, a third wedge surface (331) at the bottom of the elastic limit pin (33) penetrates through the through hole (322) to drive the elastic limit stop (32) to displace, so that the elastic limit stop (32) is separated from the locking wheel (31).

2. The safety buckle as claimed in claim 1, wherein the connecting column (12) has a mounting cavity (121) formed on a side thereof for receiving the locking wheel (31), and the pin (23) extends through the mounting cavity (121).

3. The safety buckle as claimed in claim 2, wherein the mounting cavity (121) is provided with a mounting block (4) for receiving the elastic limit stopper (32) and the elastic limit pin (33) at the outer side.

4. The gravity hook safety buckle capable of limiting as claimed in claim 3, wherein a locking groove (41) for the horizontal movement of the elastic limit stop (32) and an unlocking groove (42) for the longitudinal movement of the elastic limit pin (33) are formed in the mounting block (4), the locking groove (41) is communicated with the mounting cavity (121), and the unlocking groove (42) is communicated with the locking groove (41).

5. A load hook safety catch as claimed in claim 4, wherein the resilient positive stop (32) comprises a first stop (323) and a first spring (324), the first stop (323) being movably disposed in the locking groove (41) by the first spring (324).

6. The gravity hook safety buckle capable of limiting the position according to claim 4, wherein the elastic limiting pin (33) comprises a limiting pin (332) and a second spring (333), the limiting pin (332) is movably arranged in the unlocking groove (42) above the elastic limiting stop (32) through the second spring (333), and the upper edge of the unlocking groove (42) is provided with a limiting ring (334) for preventing the limiting pin (332) from being separated from the unlocking groove (42).