CN116119546A

CN116119546A - Hook picking device

Info

Publication number: CN116119546A
Application number: CN202310111306.3A
Authority: CN
Inventors: 王耀辉; 沈泽南; 孙晓虎; 王海军; 孟鹏飞; 刘少权; 汪义龙; 赵建; 朱仁涛; 许强; 郝强; 任道远; 张皞; 朱伟; 郭振东; 冯禹; 田涵; 闫兴伟
Original assignee: Beijing Technology Research Branch Of Tiandi Technology Co ltd; Shaanxi Zhuyuan Jiayuan Mining Co ltd; Huaneng Coal Technology Research Co Ltd; General Coal Research Institute Co Ltd
Current assignee: Beijing Technology Research Branch Of Tiandi Technology Co ltd; Shaanxi Zhuyuan Jiayuan Mining Co ltd; Huaneng Coal Technology Research Co Ltd; General Coal Research Institute Co Ltd
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2023-05-16

Abstract

The invention discloses a hook picking device, which comprises a clamping rail seat, a lifting device, a flexible piece, a connecting piece and a labor-saving piece, wherein the clamping rail seat is suitable for being detachably arranged on a steel rail of a track, the lifting device is pivotally connected with the clamping rail seat, the lifting device is provided with a first pivot position and a second pivot position, the lifting device is spaced from a steel wire rope in the width direction of the steel rail in the first pivot position, the first end of the flexible piece is connected with the lifting device, the second end of the flexible piece is connected with the connecting piece, the flexible piece can be retracted on the lifting device so as to be convenient for adjusting the height of the connecting piece, when the lifting device is positioned at the second pivot position, the connecting piece is positioned above a hook head of the steel wire rope and is suitable for being connected with the hook head of the steel wire rope, and the labor-saving piece is arranged on the lifting device and is suitable for driving the flexible piece to retract. The hook picking device provided by the invention has the advantages of low labor intensity and high safety coefficient.

Description

Hook picking device

Technical Field

The invention relates to the technical field of traction of coal mine traction ropes, in particular to a hook picking device.

Background

At present, the steel wire rope traction technology is an auxiliary transportation technology which is widely applied to coal mines, in the technology, a traction winch is usually used as a power source, a transportation vehicle is driven by a steel wire rope to run on a fixed track, the technology is very suitable for long-distance, multi-slope-change, large-inclination-angle and large-tonnage auxiliary transportation operation, and the technology is often applied to environments such as underground working face tunnels, large-inclination-angle inclined shaft tunnels and the like.

In the related art, a hook head of a steel wire rope for connecting a transport vehicle is basically carried by manpower, so that the unhooking operation between the steel wire rope and the transport vehicle is ensured. However, in order to secure traction safety of the transport vehicle, the hook heads are generally manufactured to be heavy, and thus, workers have problems of high labor intensity and low safety factor when picking up the hooks.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the invention provides the hook picking device which has the advantages of low labor intensity and high safety coefficient.

The hook picking device comprises a clamping rail seat, a lifting device, a flexible piece, a connecting piece and a labor-saving piece, wherein the clamping rail seat is suitable for being detachably arranged on a steel rail of a track; the lifting device is pivotally connected with the clamping rail seat, and has a first pivot position and a second pivot position, and in the first pivot position, the lifting device is spaced from the steel wire rope in the width direction of the steel rail; the first end of the flexible piece is connected with the lifting device, the second end of the flexible piece is connected with the connecting piece, the flexible piece can be folded and unfolded on the lifting device so that the height of the connecting piece can be adjusted, and when the lifting device is positioned at the second pivoting position, the connecting piece is positioned above the hook head of the steel wire rope and is suitable for being connected with the hook head of the steel wire rope; the labor-saving piece is arranged on the lifting device and is suitable for driving the flexible piece to retract and release.

According to the hook picking device provided by the embodiment of the invention, an operator can pick the hook head only by driving the labor-saving piece, so that the process of carrying the hook head is avoided, the condition that the hook head falls off to injure a human body by smashing is avoided, and the safety coefficient of the hook head picking process is improved. In addition, the labor-saving piece reduces the driving force for lifting the hook head, thereby reducing manpower expenditure and labor intensity.

In some embodiments, the lifting device comprises a support frame and a wheel disc, the support frame and the clamp rail seat being pivotably connected; the wheel disc is rotatably mounted on the supporting frame, the flexible piece is wound on the wheel disc, and the first end of the flexible piece is connected with the peripheral surface of the wheel disc.

In some embodiments, the support frame comprises a vertical rod, a cross arm and a pulley, wherein the vertical rod extends along the height direction of the steel rail, the bottom end of the vertical rod and the top end of the clamping rail seat are pivotably connected around a first axis, the first axis extends along the height direction of the steel rail, the wheel disc is rotatably arranged at the top end of the vertical rod around a second axis, and the second axis is perpendicular to the first axis; the cross arm extends in the horizontal direction of the steel rail, a first end of the cross arm is connected with the top end of the vertical rod, the extending direction of the cross arm is consistent with that of the steel rail at the first pivoting position, and the width direction of the cross arm is consistent with that of the steel rail at the second pivoting position; the pulley is rotatably arranged at the second end of the cross arm around a third axis, the third axis is parallel to the second axis, and the middle part of the flexible piece is lapped on the pulley.

In some embodiments, the lifting device further comprises a ratchet wheel, a pawl and an elastic member, wherein the ratchet wheel and the wheel disc are coaxially connected; the pawl is adjacent to the ratchet wheel and the first end of the pawl is pivotally mounted on the vertical rod, and the second end of the pawl is matched with the ratchet wheel; the elastic piece is connected with the pawl and the vertical rod and presses the pawl towards the ratchet wheel.

In some embodiments, the elastic member includes a rotation shaft through which the first end of the pawl is pivotally mounted to the upright; the torsion spring is sleeved on the rotating shaft, and two ends of the torsion spring are respectively connected with the vertical rod and the pawl.

In some embodiments, the lifting device further comprises a swivel mount having a rotatable bearing mounted to one of the upright and the clamp rail mount, the bearing being connected to the other of the upright and the clamp rail mount; or, the lifting device further comprises a first driving device, and the first driving device is installed on one of the upright rod and the clamping rail seat and is in transmission connection with the other of the upright rod and the clamping rail seat.

In some embodiments, the clamping rail seat comprises a fixed seat and a movable seat, the steel rail comprises a rail head, the rail head comprises a first rail head adjacent to the inner side of the rail and a second rail head away from the inner side of the rail, the fixed seat is provided with a clamping groove and a first groove, the first groove is matched with one of the first rail head and the second rail head, and the bottom end of the upright is pivotably connected with the top end of the fixed seat through the rotating seat; the movable seat is provided with a protruding part and a second groove, the second groove is matched with the other one of the first rail head part and the second rail head part, and the protruding part is detachably clamped in the clamping groove.

In some embodiments, the clamping rail seat further comprises a bolt and a nut, the fixing seat is used for forming a wall of the clamping groove and is provided with a first through hole, the protruding part is provided with a second through hole matched with the first through hole, and the bolt sequentially penetrates through the first through hole and the second through hole; at least part of the bolt protrudes out of the outer sides of the fixed seat and the movable seat, and the nut is connected with at least part of the bolt.

In some embodiments, the flexible member comprises a cable chain, the connecting member comprises a plurality of hooks, a first end of the cable chain is connected with the circumferential surface of the wheel disc, a second end of the cable chain is connected with each of the hooks, the steel wire rope is provided with a rope loop which covers the circumferential surface of the hook head, the rope loop is provided with a plurality of C-shaped rings which are distributed at intervals along the contour direction of the hook head, the number of the C-shaped rings is equal to that of the hooks and corresponds to that of the hooks one by one, and the hooks are suitable for being connected with the corresponding C-shaped rings.

In some embodiments, the labor-saving member comprises a rocker arm and a rocker handle, the rocker arm extending in a radial direction of the wheel disc, a first end of the rocker arm being connected to the wheel disc, and a second end of the rocker arm being connected to and extending in an axial direction of the wheel disc; or, the labor-saving piece comprises a second driving device, and the second driving device is installed on the supporting frame and is in transmission connection with the wheel disc.

Drawings

Fig. 1 is a schematic view of a hook picking device according to an embodiment of the present invention.

Fig. 2 is a schematic view of a rail seat of a hook picking device according to an embodiment of the present invention.

Fig. 3 is a schematic view of a wire rope and hook head of a hook picking device according to an embodiment of the invention.

Fig. 4 is a further schematic view of a hook picking device according to an embodiment of the invention.

Fig. 5 is a further schematic view of a hook picking device according to an embodiment of the invention.

Reference numerals: 1. a clamping rail seat; 11. a fixing seat; 111. a clamping groove; 112. a first groove; 113. a reinforcing plate; 114. a first via; 12. a movable seat; 121. a protruding portion; 122. a second groove; 123. a second via; 13. a bolt; 14. a nut; 2. a lifting device; 21. a support frame; 211. a vertical rod; 212. a cross arm; 213. a pulley; 22. a ratchet wheel; 23. a pawl; 24. a rotating seat; 3. a flexible member; 31. a cable chain; 4. a connecting piece; 41. a hook; 5. a labor-saving member; 51. a rocker arm; 52. a rocking handle; 6. a steel rail; 61. a first rail head; 62. a second rail head; 7. a wire rope; 71. a hook head; 72. rope loop; 73. a C-ring.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

A hook and hook extraction device according to an embodiment of the present invention is described below with reference to fig. 1-5.

As shown in fig. 1 and 3, the hooking device according to the embodiment of the present invention comprises a clamping rail seat 1, a lifting device 2, a flexible member 3, a connecting member 4 and a labor-saving member 5, wherein the clamping rail seat 1 is adapted to be detachably mounted to a rail 6 of a track. The lifting device 2 and the clamp rail seat 1 are pivotably connected, the lifting device 2 having a first pivot position in which the lifting device 2 is spaced apart from the wire rope 7 in the width direction of the rail 6 and a second pivot position. The first end of the flexible member 3 is connected to the lifting device 2, the second end of the flexible member 3 is connected to the connecting member 4, the flexible member 3 is retractable on the lifting device 2 so that the height of the connecting member 4 is adjustable, and when the lifting device 2 is in the second pivot position, the connecting member 4 is located above the hook head 71 of the wire rope 7 and is adapted to be connected to the hook head 71 of the wire rope 7. The labor-saving member 5 is mounted on the lifting device 2 and is suitable for driving the flexible member 3 to retract.

According to the unhooking device provided by the embodiment of the invention, when the traction winch drives the steel wire rope 7 to travel on the track, the lifting device 2 is at the first pivot position, so that avoidance of the steel wire rope 7 is realized. When the pulling winch is stopped and the hook 41 head needs to be removed, the lifting device 2 is in the second pivoted position and the connecting piece 4 is connected to the hook head 71. The labor-saving piece 5 is driven, the labor-saving piece 5 drives the flexible piece 3 to retract and release, and the flexible piece 3 drives the connecting piece 4 and the hook head 71 to lift, so that the hook head 71 and a transport vehicle are buckled or separated, and the effect of picking up the hook 41 is realized.

As can be seen from the above, the operator in this embodiment only needs to drive the labor-saving member 5 to remove the hook 41 head, so as to avoid the process of carrying the hook head 71, thereby avoiding the occurrence of injury to the human body caused by falling off of the hook head 71, and improving the safety factor when removing the hook 41 head. In addition, the labor saving member 5 reduces the driving force for lifting and lowering the hook head 71, thereby reducing the manpower expenditure and labor intensity.

In some embodiments, as shown in fig. 1, the lifting device 2 includes a support bracket 21 and a wheel disc, and the support bracket 21 and the rail seat 1 are pivotally connected. The rim plate rotates and installs in support frame 21, and flexible piece 3 winds on the rim plate, and flexible piece 3's first end links to each other with the global of rim plate.

Thereby, the flexible piece 3 can be driven to be retracted by rotating the wheel disc, and the hook 41 head can be taken off.

In some embodiments, as shown in fig. 1, the support frame 21 includes a vertical rod 211, a cross arm 212, and a pulley 213, the vertical rod 211 extends in the height direction of the rail 6, the bottom end of the vertical rod 211 and the top end of the rail seat 1 are pivotally connected about a first axis extending in the height direction of the rail 6, and the wheel disc is rotatably mounted on the top end of the vertical rod 211 about a second axis, the second axis being perpendicular to the first axis. The cross arm 212 extends in the horizontal direction of the rail 6, a first end of the cross arm 212 is connected to the top end of the upright 211, the extending direction of the cross arm 212 and the rail 6 are consistent in a first pivot position, and the width direction of the cross arm 212 and the rail 6 are consistent in a second pivot position. Pulley 213 is rotatably mounted to a second end of cross arm 212 about a third axis, which is parallel to the second axis, and the intermediate portion of flexure 3 overlaps pulley 213.

Thereby, the cross arm 212 realizes the interval arrangement of the pulley 213 and the wheel disc, and the pulley 213 is used for aligning the connecting piece 4 and the hook head 71 up and down, so as to facilitate the connection of the connecting piece 4 and the hook head 71.

The supporting frame 21 further includes a diagonal brace, and two ends of the diagonal brace are respectively connected to the upright 211 and the cross arm 212. Thereby, the rigidity of the supporting frame 21 is increased, and the connection strength of the upright 211 and the cross arm 212 is improved.

For ease of understanding, arrow a in fig. 1 shows the height direction of rail 6, arrow B shows the extending direction of rail 6, and arrow C shows the width direction of rail 6.

In some embodiments, as shown in fig. 1, the lifting device 2 further comprises a ratchet wheel 22, a pawl 23 and an elastic member, wherein the ratchet wheel 22 and the wheel disc are coaxially connected. A pawl 23 is mounted pivotally to the upright 211 adjacent the ratchet 22 at a first end and the ratchet 22 is engaged at a second end of the pawl 23. The elastic member connects the pawl 23 and the upright 211 to press the pawl 23 toward the ratchet 22.

Thereby, when the wheel disc rotates and drives the flexible piece 3 to ascend, the ratchet wheel 22 is simultaneously driven to rotate. When the external force applied to the wheel disc by the operator disappears, the hook head 71 will generate a downward movement trend under the action of dead weight, and the wheel disc is driven to rotate reversely through the flexible piece 3, and the wheel disc drives the ratchet wheel 22 to rotate reversely. At this time, since the pawl 23 is fitted to the ratchet 22, the pawl 23 prevents the reverse rotation tendency of the ratchet 22, thereby avoiding the drop of the hook head 71 and reducing the occurrence of an operation accident.

It will be appreciated that the pawl 23 engages the tooth slot of the ratchet 22, the pawl 23 serving to check the ratchet 22.

Wherein the elastic member is used for keeping the pawl 23 and the ratchet 22 in contact at any time, thereby ensuring the matching effect of the pawl 23 and the ratchet 22.

In some embodiments, as shown in fig. 1, the elastic member includes a rotation shaft through which a first end of the pawl 23 is pivotally mounted to the upright 211, and a torsion spring. The torsion spring is sleeved on the rotating shaft, and two ends of the torsion spring are respectively connected with the upright rod 211 and the pawl 23.

Thereby, the torsion spring serves to provide torsion force to the pawl 23 in the direction of the ratchet 22, maintaining the contact and fitting state of the pawl 23 and the ratchet 22.

Preferably, both ends of the rotation shaft are pivotally connected to the first ends of the pawls 23 and the upright 211, respectively.

Alternatively, the first end of the shaft is fixedly connected to the first end of the pawl 23 and the second end of the shaft is pivotally connected to the upright 211.

In some embodiments, as shown in fig. 1, the lifting device 2 further comprises a swivel base 24, the swivel base 24 having a rotatable bearing, the swivel base 24 being mounted to one of the upright 211 and the clamp rail base 1, the bearing being connected to the other of the upright 211 and the clamp rail base 1.

Thereby, the swivel base 24 and the bearing reduce the rotational friction between the upright 211 and the clamping rail base 1.

Specifically, the rotating base 24 is mounted on the top end of the clamping rail base 1, and the bearing is connected with the bottom end of the upright 211.

Alternatively, the lifting device 2 further comprises a first driving device mounted to one of the upright 211 and the clamping rail seat 1 and in driving connection with the other of the upright 211 and the clamping rail seat 1.

The first drive is thereby used to drive the relative rotation of the upright 211 and the rail seat 1.

Specifically, the first driving device is installed at the top end of the clamping rail seat 1, and the first driving device is in transmission connection with the bottom end of the upright rod 211.

Wherein the first driving device comprises a first motor.

In some embodiments, as shown in fig. 2 and 4, the clamping rail seat 1 comprises a fixed seat 11 and a movable seat 12, the steel rail 6 comprises a rail head, the rail head comprises a first rail head 61 adjacent to the inner side of the rail and a second rail head 62 facing away from the inner side of the rail, the fixed seat 11 is provided with a clamping groove 111 and a first groove 112, the first groove 112 is matched with one of the first rail head 61 and the second rail head 62, and the bottom end of the upright rod 211 is pivotally connected with the top end of the fixed seat 11 through a rotating seat 24. The movable seat 12 has a protruding portion 121 and a second groove 122, the second groove 122 is matched with the other of the first rail head portion 61 and the second rail head portion 62, and the protruding portion 121 is detachably clamped in the clamping groove 111.

Thereby, the protrusion 121 and the clamping groove 111 achieve the detachable connection of the movable seat 12 and the fixed seat 11, thereby achieving the effect that the clamping rail seat 1 is detachably mounted on the steel rail 6.

Specifically, the first groove 112 mates with the first rail head 61, and the second groove 122 mates with the second rail head 62.

The fixing base 11 has a reinforcing plate 113, and the center of gravity of the support frame 21 changes when the first pivot position and the second pivot position change. Thereby generating a moment for tilting the fixing base 11 toward the inside of the rail, and the reinforcing plate 113 serves to resist the moment, ensuring stability of the hooking device when rotating the supporting frame 21 and the lifting hook head 71.

It will be appreciated that when the rail 6 is a profiled rail, as shown in figure 5, the cross section of the second rail head 62 is profiled as well. In this application environment, the second groove 122 may be designed as a profiled groove that mates with the second rail head 62. Thereby ensuring the installation effect of the clamping rail seat 1 and the special-shaped rail.

In some embodiments, as shown in fig. 2, the clamping rail seat 1 further includes a bolt 13 and a nut 14, the wall of the fixing seat 11 for forming the clamping groove 111 is provided with a first via 114, the protruding portion 121 is provided with a second via 123 matched with the first via 114, and the bolt 13 sequentially penetrates the first via 114 and the second via 123. At least part of the bolt 13 protrudes outside the fixed seat 11 and the movable seat 12, and the nut 14 is connected with at least part of the bolt 13.

The relative positions of the fixed seat 11 and the movable seat 12 are defined by the bolts 13 and the nuts 14, so that the tightness of the first groove 112 and the second groove 122 matched with the rail head is ensured, and the installation effect of the clamping rail seat 1 on the steel rail 6 is ensured. In addition, the bolt 13 and the nut 14 improve the connection firmness of the fixed seat 11 and the movable seat 12, and are convenient to detach.

In some embodiments, as shown in fig. 1 and 3, the flexible member 3 includes a cable chain 31, the connecting member 4 includes a plurality of hooks 41, a first end of the cable chain 31 is connected to a circumferential surface of the wheel disc, a second end of the cable chain 31 is connected to each of the plurality of hooks 41, the wire rope 7 has a loop 72 wrapping the circumferential surface of the hook head 71, the loop 72 is provided with a plurality of C-shaped rings 73 distributed at intervals along a contour direction of the hook head 71, and the number of C-shaped rings 73 and the hooks 41 are equal and correspond to each other, and the hooks 41 are adapted to be connected to the corresponding C-shaped rings 73.

Thereby, the hook 41 achieves the effect of being connected with the hook head 71 by the C-shaped ring 73, and in addition, the connection of the hook 41 and the C-shaped ring 73 is easy to detach, thereby facilitating the removal of the hook 41 head. The design of the plurality of C-rings 73 of the plurality of hooks 41 promotes the reliability of the connection of the hooks 41 and the hook heads 71.

Specifically, the C-ring 73 is welded to the loop 72.

In some embodiments, as shown in fig. 1, the labor-saving member 5 includes a rocker arm 51 and a rocker arm 52, the rocker arm 51 extending in a radial direction of the wheel disc, a first end of the rocker arm 51 being connected to the wheel disc, and the rocker arm 52 being connected to a second end of the rocker arm 51 and extending in an axial direction of the wheel disc.

Therefore, an operator holds the rocking handle 52, and drives the wheel disc to rotate through the rocking arm 51, so that the labor-saving effect is realized, and the labor intensity is reduced.

Specifically, a first end of the rocker arm 51 is connected to the center of the wheel disc.

It will be appreciated that the length of the rocker arm 51 is much greater than the radius of the wheel disc, whereby the rocker arm 51 and wheel disc form a laborsaving lever, thereby reducing the expenditure of manpower on the rocker arm 52.

Alternatively, the labor-saving member 5 comprises a second driving device which is mounted on the support frame 21 and is in transmission connection with the wheel disc.

The second driving device is used for driving the wheel disc to rotate.

Specifically, the second driving device comprises a second motor, so that the wheel disc is driven to rotate by utilizing electric power, the manpower expenditure is further reduced, and the working strength is reduced.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting 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 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 invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, 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; may be mechanically connected, may be electrically connected or may be in communication with each other; 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 invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, 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.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean 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 invention. 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 the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the invention.

Claims

1. A hook remover comprising:

the clamping rail seat is suitable for being detachably mounted on a steel rail of a track;

a lifting device pivotally connected to the clamp rail seat, the lifting device having a first pivot position in which the lifting device is spaced apart from the wire rope in the width direction of the rail and a second pivot position;

the first end of the flexible piece is connected with the lifting device, the second end of the flexible piece is connected with the connecting piece, the flexible piece can be retracted and released on the lifting device so that the height of the connecting piece can be adjusted, and when the lifting device is positioned at the second pivoting position, the connecting piece is positioned above the hook head of the steel wire rope and is suitable for being connected with the hook head of the steel wire rope; and

the labor-saving piece is arranged on the lifting device and is suitable for driving the flexible piece to retract and release.

2. The hook picking device of claim 1, wherein the lifting device comprises:

the support frame is pivotally connected with the clamping rail seat; and

the wheel disc is rotatably mounted on the supporting frame, the flexible piece is wound on the wheel disc, and the first end of the flexible piece is connected with the peripheral surface of the wheel disc.

3. The hook remover of claim 2, wherein said support bracket comprises:

the vertical rod extends in the height direction of the steel rail, the bottom end of the vertical rod is pivotally connected with the top end of the clamping rail seat around a first axis, the first axis extends in the height direction of the steel rail, the wheel disc is rotatably arranged at the top end of the vertical rod around a second axis, and the second axis is perpendicular to the first axis;

the transverse arm extends in the horizontal direction of the steel rail, a first end of the transverse arm is connected with the top end of the vertical rod, the extending direction of the transverse arm is consistent with that of the steel rail at the first pivot position, and the width direction of the transverse arm is consistent with that of the steel rail at the second pivot position; and

the pulley is rotatably arranged at the second end of the cross arm around a third axis, the third axis is parallel to the second axis, and the middle part of the flexible piece is lapped on the pulley.

4. A hook picking device according to claim 3, wherein the lifting device further comprises:

the ratchet wheel is coaxially connected with the wheel disc;

a pawl adjacent the ratchet wheel and having a first end pivotally mounted to the upright and a second end mated to the ratchet wheel; and

and the elastic piece is connected with the pawl and the vertical rod and presses the pawl towards the ratchet wheel.

5. The hook remover of claim 4, wherein said resilient member comprises:

the first end of the pawl is pivotally arranged on the vertical rod through the rotating shaft; and

the torsion spring is sleeved on the rotating shaft, and two ends of the torsion spring are respectively connected with the vertical rod and the pawl.

6. A hooking device according to claim 3, characterised in that the lifting device further comprises a swivel base having a rotatable bearing, the swivel base being mounted to one of the upright and the clamp rail base, the bearing being connected to the other of the upright and the clamp rail base;

or, the lifting device further comprises a first driving device, and the first driving device is installed on one of the upright rod and the clamping rail seat and is in transmission connection with the other of the upright rod and the clamping rail seat.

7. The hook remover of claim 6, wherein the rail mount comprises:

the steel rail comprises a rail head, the rail head comprises a first rail head adjacent to the inner side of the rail and a second rail head deviating from the inner side of the rail, the fixing seat is provided with a clamping groove and a first groove, the first groove is matched with one of the first rail head and the second rail head, and the bottom end of the vertical rod is pivotally connected with the top end of the fixing seat through the rotating seat; and

the movable seat is provided with a protruding part and a second groove, the second groove is matched with the other one of the first rail head part and the second rail head part, and the protruding part is detachably clamped in the clamping groove.

8. The hook remover of claim 7, wherein said clip track base further comprises:

the fixing seat is used for forming a first through hole in the wall of the clamping groove, the protruding portion is provided with a second through hole matched with the first through hole, and the bolt sequentially penetrates through the first through hole and the second through hole; and

and at least part of the bolt protrudes out of the outer sides of the fixed seat and the movable seat, and the nut is connected with at least part of the bolt.

9. The hooking device according to claim 2, wherein said flexible member comprises a chain, said connecting member comprises a plurality of hooks, a first end of said chain is connected to a peripheral surface of said wheel disc, a second end of said chain is connected to each of said plurality of hooks, said wire rope has a loop covering a peripheral surface of said hook head, said loop is provided with a plurality of C-shaped rings spaced along a contour direction of said hook head, said C-shaped rings and said hooks are equal in number and in one-to-one correspondence, and said hooks are adapted to be connected to respective said C-shaped rings.

10. The hook assembly of claim 2 wherein said labor saving member includes a rocker arm and a rocker arm, said rocker arm extending radially of said wheel disc, a first end of said rocker arm being connected to said wheel disc, a second end of said rocker arm being connected to said rocker arm and extending axially of said wheel disc;

or, the labor-saving piece comprises a second driving device, and the second driving device is installed on the supporting frame and is in transmission connection with the wheel disc.