CN116281573A - Self-releasing hook with safety for hoisting - Google Patents

Abstract

The invention discloses a self-releasing hook with safety for hoisting, which comprises a suspender, a connecting block, a fixed cylinder and a main hook, wherein the connecting block is fixed at the top of the fixed cylinder, the suspender passes through the connecting block to the fixed cylinder, an anti-releasing head is arranged at one end of the suspender extending into the fixed cylinder, the suspender is in sliding connection with the connecting block along the vertical direction, a bearing pin is arranged between the top end of the main hook and the fixed cylinder, a torsion spring is arranged between the bearing pin and the main hook, and the torsion spring enables the main hook to rotate towards the opening direction; the safety hook is characterized in that a safety fastener is arranged in the fixed cylinder, the safety fastener is connected with a retaining spring, the retaining spring enables the safety fastener to move upwards, the top of the safety fastener is propped against the anti-falling head, the bottom end of the safety fastener extends out of the fixed cylinder to form a safety hook, a safety pin is arranged on the main hook, the safety pin is positioned in the safety hook when the main hook is closed, and the safety pin is separated from the safety hook when the safety hook moves downwards.

Description

Self-releasing hook with safety for hoisting

Technical Field

The invention belongs to the technical field of auxiliary equipment for installing a switch cabinet, and particularly relates to a self-releasing hook with a safety for hoisting.

Background

The current power equipment is developed towards miniaturization and intellectualization, and the problems of complex working procedures, compact space, complicated model, large manpower investment and the like in the assembly work are increasingly outstanding. With the increasing expansion of the power grid scale and the increasing of the labor cost year by year, the manual bare-handed installation of power equipment is more and more difficult to meet the requirements of modern power grid construction.

Some switch cabinets are carried and installed in a hoisting mode, a hanging ring above the switch cabinet is hooked by a hanging hook for carrying, and after the hanging ring is carried, the hanging hook is required to be taken down above the switch cabinet manually, so that the hanging ring is relatively troublesome and low in efficiency.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a switch cabinet which can realize automatic disconnection after being placed, and the main hook is locked and can not be disconnected in the process of carrying and transferring, so that the switch cabinet is safer and more convenient.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a hoist and mount are with taking off couple certainly with insurance, includes jib, connecting block, fixed cylinder and main hook, and the connecting block is fixed in the top of fixed cylinder, and the jib passes the connecting block to in the fixed cylinder, and the one end that the jib stretches into in the fixed cylinder is provided with the anticreep head, jib and connecting block along vertical direction sliding connection, the top of main hook stretches into in the fixed cylinder, and is provided with the bearing pin between main hook and the fixed cylinder, be provided with the torsional spring between bearing pin and the main hook, the torsional spring makes the main hook rotate to opening direction; the safety hook is characterized in that a safety fastener is arranged in the fixed cylinder, the safety fastener is connected with a retaining spring, the retaining spring enables the safety fastener to move upwards, the top of the safety fastener is propped against the anti-falling head, the bottom end of the safety fastener extends out of the fixed cylinder to form a safety hook, a safety pin is arranged on the main hook, the safety pin is positioned in the safety hook when the main hook is closed, and the safety pin is separated from the safety hook when the safety hook moves downwards.

Further, a limiting protrusion is arranged on the side face of the main hook, and the safety pin is fixed on the limiting protrusion.

The two safety hooks are symmetrically arranged on two sides of the main hook, and the safety pins extend out from the limiting protrusions to two sides of the safety hooks.

Further, the torsion spring is a double torsion spring.

Further the safety fastener is n-shaped, and the side wall of the safety fastener is attached to the inner side of the fixed cylinder.

Further, a bearing bracket is arranged in the fixed cylinder, the bearing bracket is n-shaped, a guide groove is formed between the bearing bracket and the fixed cylinder, and the side face of the safety fastener extends into the guide groove.

Further the holding spring is a compression spring, and the compression spring is positioned between the bearing bracket and the safety fastener.

The top of the bearing support is further provided with a guide post, the compression spring is sleeved on the guide post, the safety fastener is provided with a guide hole, and the guide post penetrates through the guide hole.

Compared with the prior art, the invention has the beneficial effects that: the automatic unhooking device is matched with a forklift, and after the switch cabinet is placed, the automatic unhooking device does not need to be manually dismantled, so that automatic unhooking can be realized; in the hoisting and transferring process, under the action of the safety hook and the safety pin, the main hook can be prevented from being opened, unhooking is prevented, and the hoisting and transferring process is safer.

Drawings

FIG. 1 is a perspective view (when closed) of a self-releasing hook for hoisting with insurance of the invention;

FIG. 2 is a side view of the self-releasing hanger for hoisting with safety according to the present invention (closed);

FIG. 3 is a cross-sectional view of the self-releasing hanger for hoisting with safety of the present invention (closed);

fig. 4 is a perspective view (when opened) of the self-releasing hook with safety for hoisting;

FIG. 5 is a side view of the self-releasing hanger for hoisting with safety of the present invention (open);

fig. 6 is a cross-sectional view (open) of the self-releasing hanger for hoisting with safety according to the present invention.

Reference numerals: 21. a boom; 211. an anti-head release; 212. a fastener; 22. a fixed cylinder; 23. a main hook; 231. a limit protrusion; 24. a safety fastener; 241. a safety hook; 25. a safety pin; 26. a torsion spring; 27. a compression spring; 28. a bearing bracket; 29. a connecting block; 3. and (5) hanging rings.

Detailed Description

Embodiments of the self-releasing lifting hook with safety according to the present invention will be further described with reference to fig. 1 to 6.

In the description of the present invention, it should be noted that, for the azimuth words such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such feature, and in the description of the present invention, the meaning of "a number", "a number" is two or more, unless otherwise specifically defined.

The utility model provides a hoist and mount are with taking off couple certainly with insurance, includes jib 21, connecting block 29, fixed cylinder 22 and main hook 23, and connecting block 29 is fixed in the top of fixed cylinder 22, and jib 21 passes connecting block 29 to in the fixed cylinder 22, and the one end that jib 21 stretches into in the fixed cylinder 22 is provided with anticreep head 211, jib 21 and connecting block 29 along vertical direction sliding connection, the top of main hook 23 stretches into in the fixed cylinder 22, and is provided with the bearing pin between main hook 23 and the fixed cylinder 22, be provided with torsional spring 26 between bearing pin and the main hook 23, torsional spring 26 makes main hook 23 rotate to the direction of opening; the safety fastener 24 is arranged in the fixed cylinder 22, the safety fastener 24 is connected with a retaining spring, the retaining spring enables the safety fastener 24 to move upwards, the top of the safety fastener 24 is propped against the anti-falling head 211, the bottom end of the safety fastener 24 extends out of the fixed cylinder 22 to form a safety hook 241, the main hook 23 is provided with a safety pin 25, the safety pin 25 is positioned in the safety hook 241 when the main hook 23 is closed, and the safety pin 25 is separated from the safety hook 241 when the safety hook 241 moves downwards.

In this embodiment the boom 21 is attached to an upper beam by fasteners 212, the upper beam being engageable with the forks of a forklift, the boom 21 being secured to the upper beam and the boom 21 being moved in synchronism as the upper beam moves up and down.

The torsion spring 26 is preferably a double torsion spring, which is symmetrically arranged at the side of the main hook 23, so that the main hook 23 can be uniformly stressed.

The opening direction of the main hook 23 refers to the direction in which the main hook 23 can be separated from the hanging ring 3 when the main hook 23 is opened, and conversely, the closing direction of the main hook 23.

As shown in fig. 1 to 3, when the main hook 23 is in a closed state, in order to allow the open side of the main hook 23 to be completely closed, the fixing cylinder 22 preferably extends downward corresponding to the open side of the main hook 23, and when the main hook 23 is closed, the opening is blocked by the side wall of the fixing cylinder 22.

When the switch cabinet is lifted by being matched with the lifting ring 3, the retaining spring enables the retaining fastener to be positioned at the top, the safety pin 25 is positioned in the safety hook 241 at the moment, the main hook 23 has a clockwise rotating trend, but the safety hook 241 clamps the safety pin 25 at the moment, even if the heavier lifting ring 3 is not pulled below the main hook 23, the main hook 23 cannot rotate in the opening direction (clockwise), namely, the main hook 23 and the lifting ring 3 are always kept in a mutually hooked state in the transferring process of the switch cabinet, and the lifting ring 3 cannot be separated;

after the switch cabinet is put down, as the upper beam continues to descend, the main hook 23 or other components are propped against the hanging ring 3 or the switch cabinet, the hanging rod 21 further stretches into the fixed cylinder 22, the anti-falling head 211 downwards presses the safety fastener 24 against the acting force of the retaining spring, the safety fastener 24 moves downwards, as shown in fig. 4-6, and further the safety hook 241 moves downwards, at the moment, the safety pin 25 is separated from the safety hook 241, the main hook 23 rotates towards the opening direction (clockwise) under the action of the torsion spring 26, and the hanging ring 3 is separated, so that unhooking is completed.

When the main hook 23 is closed again, the safety catch 24 is moved upward to be reset as long as the upper beam is lifted, and the safety pin 25 can enter the safety hook 241 after the main hook 23 rotates in the closing direction.

The side surface of the main hook 23 is preferably provided with a limit protrusion 231, and the safety pin 25 is fixed on the limit protrusion 231.

The limiting protrusion 231 not only can be used for fixing the limiting pin, but also can be matched with the limiting pin to limit the opening angle of the main hook 23, and can facilitate the force application to close the main hook 23, and of course, in one embodiment, the main hook 23 can also be connected with a motor to realize the closing in an electric mode.

The two safety hooks 241 are symmetrically arranged on two sides of the main hook 23, and the safety pin 25 extends from the limit protrusion 231 to two sides of the safety hook 241.

As shown in fig. 1 and 2, after the safety pin 25 of the main hook 23 is inserted into the safety hook 241, both sides thereof are simultaneously restricted and uniformly stressed.

In one embodiment, the safety catch 24 is "n" shaped, and the side wall of the safety catch 24 is attached to the inner side of the fixed barrel 22.

The side surface of the safety catch 24 is substantially fitted to the inner wall of the fixed cylinder 22, and the movement of the safety catch 24 is restricted by the inner wall of the fixed cylinder 22 to prevent tilting.

Preferably, a bearing bracket 28 is disposed in the fixed cylinder 22, the bearing bracket 28 is n-shaped, a guiding groove is formed between the bearing bracket 28 and the fixed cylinder 22, and the side surface of the safety fastener 24 extends into the guiding groove.

The bearing bracket 28 and the fixed cylinder 22 are completely fixed, and the bearing pin can pass through the bearing bracket 28 and the fixed cylinder 22 at the same time, the further holding spring can be a compression spring 27, one end of the compression spring is propped against the upper part of the bearing bracket 28, the other end is propped against the lower part of the safety fastener 24, in order to keep the safety fastener 24 stably moving, a guide post is preferably arranged at the top of the bearing bracket 28, the compression spring 27 is sleeved on the guide post, and a guide hole is formed in the safety fastener 24, and the guide post passes through the guide hole.

Wherein the load bearing bracket 28 may also be considered to be integral with the stationary barrel 22.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims (8)

1. The utility model provides a hoist and mount are with taking off couple certainly with insurance which characterized in that: the lifting device comprises a lifting rod, a connecting block, a fixed cylinder and a main hook, wherein the connecting block is fixed at the top of the fixed cylinder, the lifting rod penetrates through the connecting block to the inside of the fixed cylinder, an anti-falling head is arranged at one end of the lifting rod extending into the fixed cylinder, the lifting rod is in sliding connection with the connecting block along the vertical direction, the top end of the main hook extends into the fixed cylinder, a bearing pin is arranged between the main hook and the fixed cylinder, and a torsion spring is arranged between the bearing pin and the main hook and enables the main hook to rotate towards the opening direction; the safety hook is characterized in that a safety fastener is arranged in the fixed cylinder, the safety fastener is connected with a retaining spring, the retaining spring enables the safety fastener to move upwards, the top of the safety fastener is propped against the anti-falling head, the bottom end of the safety fastener extends out of the fixed cylinder to form a safety hook, a safety pin is arranged on the main hook, the safety pin is positioned in the safety hook when the main hook is closed, and the safety pin is separated from the safety hook when the safety hook moves downwards.

2. The self-releasing hook for hoisting with safety according to claim 1, wherein: the side of the main hook is provided with a limiting protrusion, and the safety pin is fixed on the limiting protrusion.

3. The self-releasing hook for hoisting with safety according to claim 2, characterized in that: the safety hooks are arranged in two, the two safety hooks are symmetrically arranged on two sides of the main hook, and the safety pins extend out from the limiting protrusions to two sides of the safety hooks.

4. The self-releasing hook for hoisting with safety according to claim 2, characterized in that: the torsion spring is a double torsion spring.

5. The self-releasing hook for hoisting with safety according to claim 4, wherein: the safety fastener is n-shaped, and the side wall of the safety fastener is attached to the inner side of the fixed cylinder.

6. The self-releasing hook for hoisting with safety according to claim 5, wherein: the fixed cylinder is internally provided with a bearing bracket which is n-shaped, a guide groove is formed between the bearing bracket and the fixed cylinder, and the side surface of the safety fastener extends into the guide groove.

7. The self-releasing hook for hoisting with safety according to claim 6, wherein: the retaining spring is a compression spring, and the compression spring is positioned between the bearing bracket and the safety fastener.

8. The self-releasing hook for hoisting with safety according to claim 7, wherein: the top of the bearing support is provided with a guide post, the compression spring is sleeved on the guide post, a guide hole is formed in the safety fastener, and the guide post penetrates through the guide hole.

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