CN220537310U

CN220537310U - Lifting hook device

Info

Publication number: CN220537310U
Application number: CN202321413567.2U
Authority: CN
Inventors: 翟松光; 王德萍; 赵杰; 吴永峰; 徐明飞
Original assignee: Qingdao Port International Co ltd Dongjiakou Branch; Qingdao Port International Co Ltd
Current assignee: Qingdao Port International Co ltd Dongjiakou Branch; Qingdao Port International Co Ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2024-02-27
Anticipated expiration: 2033-06-05

Abstract

The utility model discloses a lifting hook device which comprises a bearing piece, a sliding piece, a limiting piece, a hook, a connecting piece and a push-pull rod, wherein the sliding piece is arranged on the bearing piece; the bearing piece comprises a hanging part and a blocking part; the blocking part is long, and the upper end of the blocking part is connected with the hanging part; the hanging part is provided with a first containing cavity with an opening at the upper end, and one side of the hanging part is provided with a second containing cavity which is communicated with the first containing cavity; the blocking part is provided with a chute in the length direction; the bearing piece is provided with a third containing cavity communicated with the second containing cavity and the chute; the sliding piece is arranged in the first accommodating cavity and is provided with a through groove in the longitudinal direction; the limiting piece is a column body, penetrates through the penetrating groove, and at least one end of the limiting piece is fixedly connected with the side wall of the first accommodating cavity; the hook is positioned on one side of the blocking part and is rotatably connected with the hooking part; the connecting piece is arranged in the second containing cavity, the third containing cavity and the sliding groove, and one end of the connecting piece is fixedly connected with the sliding piece; the push-pull rod is respectively and rotatably connected with the other end of the connecting piece and the hook; the movable hook on the connecting piece is closed; the connecting piece moves downwards, and the hook is opened, so that the hoisting efficiency is improved.

Description

Lifting hook device

Technical Field

The utility model belongs to the technical field of hoisting tools, and particularly relates to a lifting hook device.

Background

The lifting appliance refers to a device for lifting a heavy object in a lifting machine. The most commonly used slings for lifting articles are hooks and slings, and others are slings, lifting chucks, clamps, forks and the like. When the port excavator is hoisted, the steel wire rope shackle is connected with the connecting lifting lug on the excavator by manpower, and when the hoisted excavator is released, the steel wire rope is required to be dismantled by manpower through dismantling the shackle, so that the hoisting working efficiency is greatly reduced, and a large potential safety hazard exists.

Disclosure of Invention

The utility model provides a lifting hook device, which realizes the closing and opening of a lifting hook by driving a sliding part to act through a lifting rope, and improves the lifting efficiency.

In order to solve the technical problems, the utility model is realized by adopting the following technical scheme:

a hook assembly comprising:

the bearing piece comprises a hanging part and a blocking part, wherein the blocking part is positioned below one side of the hanging part; the blocking part is of a long structure, and the upper end of the blocking part is connected with the hanging part; the hanging part is provided with a first accommodating cavity with an opening at the upper end; a second accommodating cavity communicated with the first accommodating cavity is formed at one side of the first accommodating cavity; the blocking part is provided with a chute in the length direction; the bearing piece is provided with a third containing cavity communicated with the second containing cavity and the sliding groove;

the sliding piece can be installed in the first accommodating cavity in a vertical sliding way, the upper end of the sliding piece is used for being connected with the lifting rope, and a penetrating groove penetrating the sliding piece in the longitudinal direction is formed;

the limiting piece is a column body and transversely penetrates through the penetrating groove, and at least one end of the limiting piece is fixedly connected with the side wall of the first accommodating cavity;

the hook is positioned below the hanging part and is rotatably connected with the hanging part;

the connecting piece is arranged in the second containing cavity, the third containing cavity and the sliding groove, and one end of the connecting piece is fixedly connected with the sliding piece; the other end of the connecting piece is driven to move up and down along the sliding groove by the up and down movement of the sliding piece;

one end of the push-pull rod is rotatably connected with the other end of the connecting piece, and the other end of the push-pull rod is rotatably connected with the hook; the connecting piece moves upwards and downwards, so that the push-pull rod pulls the hook to the blocking part or pushes the hook away from the blocking part.

In a specific embodiment, the slider is cylindrical; the first accommodating cavity is in installation fit with the sliding piece; the penetrating groove penetrates through the sliding piece along the radial direction of the sliding piece, and the length of the penetrating groove is distributed along the axis of the sliding piece; the limiting piece is installed and matched with the penetrating groove in the width direction; the sliding chute and the opening thereof are positioned on the inner side of the blocking part; the opening of the hook faces the blocking part.

In a specific embodiment, the hook is of an open triangle structure and comprises a hanging body and a hook body; the upper end of the hanging body is rotatably connected with the lower end of the hanging part, and the lower end of the hanging body is fixedly connected with one end of the hook body; the other end of the hook body faces the blocking part;

when the push-pull rod pulls the hook to the blocking part, the other end of the hook body faces upwards; when the push-pull rod pushes the hook away from the blocking part, the other end of the hook body faces downwards.

In a specific embodiment, the sliding block is matched with the sliding groove in a sliding connection manner and is arranged in the sliding groove;

the other end of the connecting piece is fixedly connected with the sliding block; one end of the push-pull rod is rotatably connected with the sliding block.

In a specific embodiment, the connecting piece comprises a first connecting piece and a second connecting piece; the first connecting piece is of a long structure and is transversely arranged in the second containing cavity, and one end of the first connecting piece is fixedly connected with the sliding piece; the second connecting piece is of a long structure, is matched with the third accommodating cavity in a sliding mode in the transverse direction, is vertically arranged in the third accommodating cavity, one end of the second connecting piece is fixedly connected with the other end of the first connecting piece, and the other end of the second connecting piece is fixedly connected with the sliding block.

In some specific embodiments, the sliding device further includes a tension spring 8, two ends of which are respectively fixedly connected with the lower end of the sliding member and the bottom wall of the first accommodating cavity, and the limiting member is located at the upper end of the through groove in a free state.

In some specific embodiments, the tension spring 8 is a coil spring, one end of which is fixedly connected to the lower end of the sliding member, and the other end of which is fixedly connected to the bottom wall of the first cavity.

In some specific embodiments, the device further comprises a baffle ring and a torsion spring;

the blocking part is provided with a first groove which is in installation fit with the torsion spring; the torsion spring is arranged in the first groove; one side of the baffle ring is connected with the blocking part through the torsion spring; the other side of the baffle ring is positioned below the hook body, and the upper side of the baffle ring is in compression connection with the hook body.

In some specific embodiments, the lower end of the blocking portion is formed with a second groove opening toward the hook body, which is fitted with the end of the other end of the hook body; when the hook is pulled to the blocking part by the push-pull rod, the tail end of the other end of the hook body is positioned in the second groove.

In some specific embodiments, the second recess is open below.

Compared with the prior art, the utility model has the advantages and positive effects that: according to the lifting hook device, the bearing piece provided with the first containing cavity and the sliding groove communicated with the first containing cavity is arranged, so that the sliding piece connected with the lifting rope is lifted to move upwards relative to the bearing piece, one end of the push-pull rod is driven to move upwards, and the push-pull rod pulls the hook to approach the blocking part, so that the hook is in a closed state, and the efficiency and safety of hooking of the hook are improved; when the hoisted object is placed, connection between the bearing piece and the sliding piece is loose, if the sliding piece moves downwards in the first containing cavity relative to the bearing piece, the connecting piece and the push-pull rod are driven to push the hook away from the blocking part, so that the hook is in an open state, unhooking is realized, unhooking is simpler, more convenient and faster, and hoisting efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an embodiment of an automatic unhooking apparatus according to the present utility model;

FIG. 2 is a schematic view showing a hanging state of an embodiment of an automatic unhooking apparatus according to the present utility model;

fig. 3 is a schematic view showing a release state of an embodiment of an automatic unhooking device according to the present utility model.

In the drawing the view of the figure,

1. a load bearing member; 2. a slider; 3. a hook; 4. a limiting piece; 5. a connecting piece; 6. a push-pull rod; 7. a slide block; 8. a tension spring; 9. a baffle ring; 10. a torsion spring; 20. a hanging rope; 11. a hanging part; 12. a blocking portion; 13. a third cavity; 111. a first cavity; 112. a second cavity; 121. a chute; 122. a first groove; 123. a second groove; 21. a through groove; 31. a hanging body; 32. a hook body; 51. a first connector; 52. and a second connecting piece.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Referring to fig. 1, 2 and 3, a hook device of the present utility model includes a load bearing member 1, a sliding member 2, a limiting member 4, a hook 3, a connecting member 5 and a push-pull rod 6.

The bearing piece 1 comprises a hanging part 11 used for being connected with the hanging hook 3 and a blocking part 12 positioned below one side of the hanging part 11; the blocking part 12 is of an elongated structure, and the upper end of the blocking part is connected with the hanging part 11; the hook 3 is positioned below the hooking portion 11 and at one side of the blocking portion 12, and is rotatably connected with the hooking portion 11.

The hanging part 11 is formed with a first accommodating cavity 111, and the upper end of the first accommodating cavity is opened; the upper end of the slider 2 is adapted to be connected to the hanger rope 20, and the lower end is installed in the first cavity 111 and is movable in the first cavity 111 in the vertical direction along the length direction of the first cavity 111.

The stopper 12 has a slide groove 121 formed therein and having the same longitudinal direction as the stopper 12, and an opening thereof is provided along the longitudinal direction of the slide groove 121.

The load bearing member 1 is further formed with a vertically elongated third cavity 13 located at one side of the first cavity 111 and extending to the blocking portion 12; the third accommodating cavity 13 is communicated with the second accommodating cavity 112 and the chute 121; the connecting piece 5 is arranged in the second accommodating cavity 112, the third accommodating cavity 13 and the chute 121, one end of the connecting piece is fixedly connected with the sliding piece 2, and the other end of the connecting piece is rotatably connected with one end of the push-pull rod 6; the slider 2 moves up and down in the first receiving chamber 111 to drive the connecting piece 5 to move up and down, so that the other end of the connecting piece 5 moves up and down along the chute 121.

One end of the push-pull rod 6 is rotatably connected with the other end of the connecting piece 5, the other end is rotatably connected with the hook 3, and when one end of the push-pull rod 6 moves up and down along with the connecting piece 5, the hook 3 is pulled to the blocking part 12 or the hook 3 is pushed away from the blocking part 12, namely, the hook 3 is closed or opened.

The slider 2 is formed with a through groove 21 penetrating the slider 2 longitudinally, the length direction of which is in the length direction of the slider 2; the limiting member 4 is inserted into the through groove 21, and at least one of the two ends is fixedly connected with the side wall of the first accommodating cavity 111 to limit the up-and-down movement of the sliding member 2.

According to the lifting hook device, through the arrangement of the bearing piece 1 provided with the first containing cavity 111 and the sliding groove 121 communicated with the first containing cavity 111, the sliding piece 2 connected with the lifting rope 20 is lifted to move upwards relative to the bearing piece 1, one end of the push-pull rod 6 is driven to move upwards, the push-pull rod 6 pulls the hook 3 to approach the blocking part 12, so that the hook 3 is in a closed state, and the efficiency and safety of hook connection are improved; when the hoisted object is placed, connection between the bearing piece 1 and the sliding piece 2 is loose, if the sliding piece 2 moves downwards in the first containing cavity 111 relative to the bearing piece 1, the connecting piece 5 and the push-pull rod 6 are driven to push the hook 3 away from the blocking part 12, so that the hook 3 is in an open state, unhooking is realized, unhooking is simpler, more convenient and faster, and hoisting efficiency is improved.

The construction and principle of the hook assembly of the present utility model will be described in detail with reference to specific examples.

In a specific embodiment, referring to fig. 1, 2 and 3, the opening of the hook 3 faces the blocking portion 12 and is located at one side of the blocking portion 12 and below the hooking portion 11; the blocking part 12 is used for being connected with the hook 3 to form a closed state of the hook 3 when the hook 3 is closed, or is far away from the hook 3 when the hook is opened, so that the hook 3 is changed from the closed state to an unclosed state, namely an opened state.

The first accommodating cavity 111 is a column; the sliding member 2 is fitted in sliding up and down the first accommodating chamber 111, and the lower end is installed in the first accommodating chamber 111.

The chute 121 is located inside the barrier and the opening is also located inside the barrier; i.e. the opening of the chute 121 is directed towards the opening of the hook 3.

The other end of the push-pull rod 6 is rotatably connected with the inner side of the hook 3, and when one end of the push-pull rod 6 moves up and down along with the connecting piece 5, the hook 3 is pulled to the blocking part 12 to be connected with the blocking part 12 and the hook 3 is pushed away from the blocking part 12, namely, the hook 3 and the blocking part 12 form a closed state and a non-closed state.

The stopper 4 is a cylinder fitted in the width direction of the through groove 21.

Preferably, the through groove 21 is a long through hole, and the limiting member 4 is a cylinder structure slidably mounted and adapted to the width direction of the long through hole.

In a specific embodiment, with reference to fig. 1, 2 and 3, the hook arrangement further comprises a slider 7 which is slidably mounted in engagement with the slide groove 121 and which is mounted in the slide groove 121.

The other end of the connecting piece 5 is fixedly connected with the sliding block 7, and drives the sliding block 7 to slide up and down in the sliding groove 121; one end of the push-pull rod 6 is rotatably connected with the sliding block 7, so that when the sliding block 7 moves up and down, the push-pull rod 6 rotates around the sliding block 7, and meanwhile, one end moves upwards to drive the other end and the hook 3 to move upwards and in the direction of the blocking part 12.

The hook device of this embodiment prevents the deformation of the connecting piece 5 by setting the sliding block 7 in the sliding groove 121 and limiting the sliding block 7 in the transverse direction and the longitudinal direction in the sliding groove 121, so that the up-and-down movement of the connecting piece 5 is more stable and reliable, and the stability of the hook device operation is improved.

Preferably, referring to fig. 1, 2 and 3, the sliding block 7 includes a protruding portion protruding from the sliding groove 121, and is rotatably connected with one end of the push-pull rod 6, so as to enlarge the rotation angle range of the push-pull rod 6 around the sliding block 7, prevent the sliding groove 121 from interfering with the push-pull rod 6, and improve the stability and reliability of the operation of the hook device.

In a specific embodiment, referring to fig. 1, 2 and 3, the slider 2 is of cylindrical shape; the penetrating groove 21 penetrates the slider 2 in the radial direction of the slider 2, and its length is distributed along the axis of the slider 2.

The external outline of the hanging part 11 is nearly square; the blocking portion 12 has a nearly square structure connected to one side of the hooking portion 11.

Of course, the sliding member 2 may be a regular polygonal cylinder, and its axial position is limited by its shape. The hanging portion 11 and the blocking portion 12 may be of other regular cylindrical shapes.

In a specific embodiment, referring to fig. 1, 2 and 3, the connecting member 5 includes a first connecting member 51 and a second connecting member 52; the first connecting piece 51 is of an elongated structure, the length of the first connecting piece is matched with the length of the second accommodating cavity 112, the first connecting piece is transversely arranged in the second accommodating cavity 112, and one end of the first connecting piece is fixedly connected with the sliding piece 2.

The second connecting piece 52 is of an elongated structure, is matched with the third accommodating cavity 13 in a sliding installation manner, vertically penetrates through the third accommodating cavity 13, and is fixedly connected with the other end of the first connecting piece 51 at one end; the other end of the second connecting piece 52 is fixedly connected with the sliding block 7.

Preferably, the length direction of the first connecting piece 51 is perpendicular to the length direction of the second connecting piece 52, and when the first connecting piece 51 moves up and down along with the sliding piece 2 in the second accommodating cavity 112, the second connecting piece 52 slides up and down along with the first connecting piece 51 in the third accommodating cavity 13 and the sliding groove 121.

The lifting hook device of the embodiment drives one end of the push-pull rod 6 to move up and down through the connecting piece 5 in a high-efficient manner, so that the efficiency of the push-pull rod 6 for pulling the hook 3 to the blocking piece and pushing the hook away from the blocking piece is improved.

In a specific embodiment, referring to fig. 1, 2 and 3, the hook 3 is an open triangle structure, and includes a hanging body 31 and a hook body 32, which are respectively located on two sides of the triangle structure; the upper end of the hanging body 31 is rotatably connected with the lower end of the hanging part 11, and the lower end is fixedly connected with one end of the hook body 32; the other end of the hook body 32 faces the blocking portion 12.

The upper end of the hanging body 31 is rotatably connected with the lower end of the hanging part 11; when one end of the push-pull rod 6 moves upwards, the other end moves towards the blocking part 12 and upwards and drives the hook 3 to rotate around the lower end rotating shaft of the hanging part 11, so that the other end of the hook body 32 faces upwards and is connected with the blocking part 12, and the hook 3 enters a closed state; when one end of the push-pull rod 6 moves downwards, the other end moves away from the blocking part 12 and downwards, so that the other end of the hook body 32 moves downwards and away from the blocking part 12, and the hook 3 enters an unclosed state, thereby realizing unhooking of the shackle.

The hook device of the embodiment enables the hook body 32 to be inclined upwards and inclined downwards respectively in a hoisting operation state and a unhooking state by setting the hook 3 into an open triangle structure and by the action of the push-pull rod 6, so that the shackle is hoisted or separated from the hook body 32 at a low point in a sliding manner, the hoisting stability is enhanced, the unhooking difficulty is reduced, the safety of hoisting operation is enhanced, and the unhooking efficiency is improved.

In some specific embodiments, referring to fig. 1, 2 and 3, the hook apparatus further includes a tension spring 8, two ends of which are fixedly connected to the lower end of the slider 2 and the bottom wall of the first cavity 111, respectively, and the limiting member 4 is located at the upper end of the through slot 21 when the tension spring 8 is in a free original state.

In the hook device of this embodiment, the tension spring 8 is disposed between the sliding member 2 and the bottom wall of the first accommodating cavity 111, and two ends of the tension spring 8 are fixedly connected with the sliding member 2 and the bottom wall of the first accommodating cavity 111 respectively, so that when the lifting rope 20 is pulled to drive the sliding member 2 to move upwards, the tension spring 8 deforms, and the stress of the sliding member 2 is transferred to the bottom wall of the first accommodating cavity 111; when the lower end of the through groove 21 is connected with the limiting piece 4, namely, the limiting piece 4 is positioned at the lower end of the through groove 21, the limiting piece 4 and the tension spring 8 bear the weight of the hoisted object together, and the hoisting weighing capacity is improved. When the lifting is completed, the lifting hook releases the weight of the lifted object, the restoring force of the restoring deformation of the tension spring 8 pulls the sliding part 2 to move downwards, and then one ends of the connecting part 5, the sliding block 7 and the push-pull rod 6 are driven to move downwards, so that the push-pull rod 6 pushes the hook 3 away from the blocking part, automatic unhooking is realized, and unhooking efficiency is improved.

In some specific embodiments, referring to fig. 2 and 3, the tension spring 8 is a coil spring, one end of which is fixedly connected to the lower end of the sliding member 2, and the other end of which is fixedly connected to the bottom wall of the first cavity 111.

In some specific embodiments, referring to fig. 1, 2 and 3, the hook assembly further comprises a stop ring 9, a torsion spring 10.

The lower end of the blocking portion 12 is formed with a first groove 122 fitted with the torsion spring 10; the torsion spring 10 is installed in the first groove 122; the baffle ring 9 is of an annular structure, and one side of the baffle ring is connected with the blocking part 12 through the torsion spring 10; the other side of the baffle ring 9 is positioned below the hook body 32, and the upper side is in compression connection with the hook body 32.

When the hook 3 is in a closed state, the upper side of the baffle ring 9 is in compression connection with the hook body 32 through the torsion deformation force of the torsion spring 10, so that the stress of the push rod pulling the hook 3 to the blocking piece is shared, and the operation state of the hook device is more stable and reliable; when the hook 3 is in a non-closed state, the hook body 32 is far away from the blocking piece, and unhooking can be realized by shackle; at this time, the upper side of the baffle ring 9 is tightly connected with the hook body 32 by the torsion deformation force of the torsion spring 10, so that the shackle cannot fall automatically and uncontrollably; but the shackle is released by manually rotating the baffle ring 9 when the conditions are mature and allowed, so that the operation safety and the personnel safety are improved.

In a specific embodiment, referring to fig. 1, 2 and 3, the lower end of the blocking portion 12 is formed with a second groove 123 open toward the hook body 32, which is fitted with the end of the other end of the hook body 32; when the hook 3 is pulled toward the blocking portion 12 by the push-pull rod 6, the end of the other end of the hook body 32 is positioned in the second groove 123.

The hook device of this embodiment improves the sealing performance of the closed state of the hook body 32 by the embedded connection mode of the other end of the hook body 32 and the lower end of the blocking part 12, prevents the hoisted object from sliding down from the gap between the end of the other end of the hook body 32 and the blocking part, and improves the safety of hoisting operation.

Preferably, the lower opening of the second groove 123 increases the adaptability of the second groove 123 to the other end of the hook body 32, and the reliability of entering the connection state.

Preferably, the baffle ring 9 is a square ring; the first groove 122 is located above the second groove 123, so that one side of the baffle ring 9 is higher than the other side, and the other side of the baffle ring 9 is stressed more in the plane direction of the baffle ring 9 than more in the direction perpendicular to the plane of the baffle ring 9; that is, the release blocking force of the retainer 9 to the hook body 32 is increased by the coupling force of the retainer 9 to the blocking portion 12 rather than the torsion force of the torsion spring 10, and the safety level of the hook replacing device is improved.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

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 indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. A hook assembly, comprising:

a slider slidably installed up and down in the first receiving chamber, the upper end of the slider being connected to the hanger rope 20, and having a through groove formed therethrough in a longitudinal direction thereof;

2. The hook assembly of claim 1 wherein the slide is cylindrical; the first accommodating cavity is in installation fit with the sliding piece; the penetrating groove penetrates through the sliding piece along the radial direction of the sliding piece, and the length of the penetrating groove is distributed along the axis of the sliding piece; the limiting piece is installed and matched with the penetrating groove in the width direction; the sliding chute and the opening thereof are positioned on the inner side of the blocking part; the opening of the hook faces the blocking part.

3. The hook assembly of claim 2 wherein the hook is an open triangle structure comprising a hanger body and a hook body; the upper end of the hanging body is rotatably connected with the lower end of the hanging part, and the lower end of the hanging body is fixedly connected with one end of the hook body; the other end of the hook body faces the blocking part;

4. The hook assembly of claim 1, further comprising a slider slidably engaged with and mounted in the chute;

5. The hook assembly of claim 4 wherein the connector includes a first connector, a second connector; the first connecting piece is of a long structure and is transversely arranged in the second containing cavity, and one end of the first connecting piece is fixedly connected with the sliding piece; the second connecting piece is of a long structure, is matched with the third accommodating cavity in a sliding mode in the transverse direction, is vertically arranged in the third accommodating cavity, one end of the second connecting piece is fixedly connected with the other end of the first connecting piece, and the other end of the second connecting piece is fixedly connected with the sliding block.

6. The hook assembly of any one of claims 1 to 5 further comprising a tension spring having two ends fixedly connected to the lower end of the slider and the bottom wall of the first chamber, respectively, and wherein the retainer is located at the upper end of the through slot in the free state.

7. The hook assembly of claim 6 wherein the tension spring is a coil spring having one end fixedly connected to the lower end of the slider and the other end fixedly connected to the bottom wall of the first chamber.

8. The hook assembly of claim 3 further comprising a stop ring, a torsion spring;

9. A hook assembly according to claim 3, wherein the lower end of the blocking portion is formed with a second recess open to the hook body which fits into the end mounting of the other end of the hook body; when the hook is pulled to the blocking part by the push-pull rod, the tail end of the other end of the hook body is positioned in the second groove.

10. The hook assembly of claim 9 wherein the second recess opens below.