CN214879557U - Tower crane lifting hook with self-locking structure - Google Patents
Tower crane lifting hook with self-locking structure Download PDFInfo
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- CN214879557U CN214879557U CN202120689399.4U CN202120689399U CN214879557U CN 214879557 U CN214879557 U CN 214879557U CN 202120689399 U CN202120689399 U CN 202120689399U CN 214879557 U CN214879557 U CN 214879557U
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Abstract
The utility model discloses a lifting hook for tower crane with self-locking structure, which comprises a lifting hook body and a self-locking device, wherein the lifting hook body comprises a transition plate, a lifting plate and a vertical plate, the self-locking device comprises a wire wheel, a connecting plate and a reaction cylinder, a slide rod is connected in the connecting cylinder in a sliding way, the top part of the slide rod is fixedly connected with a seat plate, a lock rod is fixedly connected on the seat plate, and a corresponding lock hole is arranged on the lifting plate. The condition that the locking is forgotten due to negligence can be avoided while the convenience is improved.
Description
Technical Field
The utility model relates to a lifting hook technical field, concretely relates to lifting hook is used to tower crane with auto-lock structure.
Background
The tower crane is the most common hoisting equipment on the construction site, also called tower crane, which is generally used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction, and is an essential equipment on the construction site.
When the tower crane works, the material is generally bound by the lifting rope, the lifting rope is hooked by the tower crane through the lifting hook, the material is moved through the movement of the lifting arm, and the lifting hook and a heavy object are possibly or possibly separated in the lifting process due to the quick movement of the lifting arm, so that the material drops, the material is not only damaged, and moreover, the fallen material generally smashes constructors and more causes casualties.
The lifting hook in the prior art is generally provided with a locking device, after a lifting rope is hooked, the phenomenon that the lifting rope slides down in the hoisting process can be avoided by operating the locking device, but the locking device in the prior art is generally required to be manually locked, and is generally neglected and can be forgotten to be locked, and the manual locking and unlocking operation is relatively delayed.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a tower crane is with lifting hook with auto-lock structure, the utility model discloses a realize through following technical scheme.
A tower crane lifting hook with a self-locking structure comprises a lifting hook body and a self-locking device;
the lifting hook body comprises a transition plate, a lifting plate fixedly connected with the top of the transition plate and a vertical plate fixedly connected with the bottom of the transition plate, the transition plate is 1/4 circular, the lifting plate is L-shaped, and a lifting ring is fixedly connected to the lifting plate;
the self-locking device comprises a wire wheel, a connecting plate and a reaction cylinder, wherein the upper part of a vertical plate is provided with a through groove, the front side and the rear side of the through groove are symmetrically and rotatably connected with rotating shafts, one end of each rotating shaft extending into the through groove is fixedly connected with the wire wheel, the axes of the two rotating shafts are superposed with the axis of a transition plate, the front side and the rear side of the transition plate are respectively provided with 1/4 circular chutes, the chutes are internally and fixedly connected with guide rods with the same shapes, the chutes are internally and slidably connected with sliding blocks, the sliding blocks are also in sliding connection with the guide rods, the guide rods between the sliding blocks and the bottoms of the chutes are sleeved with first springs, the outer sides of the sliding blocks are fixedly connected with pin shafts, the left end of the connecting plate is rotatably connected with the pin shafts, the right end of the connecting plate is fixedly connected with the corresponding rotating shaft, supporting rods are uniformly and fixedly connected between the connecting plates along the length direction of the connecting plates, and the reaction cylinder is fixedly connected in the vertical plate, sliding connection has the lift seat in the reaction cylinder, the rigid coupling has the second spring between the lower surface of lift seat and the bottom of reaction cylinder, and the upper surface center rigid coupling of lift seat has the slide bar, the slide bar has the bedplate with the roof sliding connection of reaction cylinder, and the top rigid coupling of slide bar has the bedplate, the even rigid coupling of upper surface along its length direction of bedplate has the locking lever, be equipped with the lockhole that corresponds with the locking lever on the hanger plate, the lower surface bilateral symmetry rigid coupling of bedplate has the stay cord, the upper surface of riser is equipped with the line hole that runs through logical groove, stay cord warp hole penetrates logical groove and twines on the line wheel that corresponds.
Furthermore, the elastic coefficient of the first spring is 5-10 times that of the second spring.
Further, when the sliding block contacts with the top of the sliding groove, the first spring is in a natural state, and when the lifting seat contacts with a top plate of the reaction cylinder, the second spring is in a natural state.
Further, the pull rope is a multi-strand wound steel wire rope.
Further, each of the pulling ropes is wound around the corresponding reel clockwise as viewed in the front-to-rear direction.
The beneficial effects of the utility model are that, when carrying out the hoist and mount of material, the lifting rope falls on the connecting plate, the action of gravity of material makes connecting plate anticlockwise rotation and drives the line wheel and rotate on the connecting plate, when the line wheel rotates, the stay cord unreels, under the effect of second spring, the locking lever rises and gets into in the lockhole, can avoid at the hoist and mount in-process, the obscission of lifting rope, the security improves, it can lock automatically when hoist and mount, and automatic unblock after the hoist and mount is accomplished, need not manual operation, when improving the convenience, also can avoid forgetting the locking condition that the negligence caused.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some examples of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1: the utility model relates to an axonometric drawing of a tower crane lifting hook with a self-locking structure;
FIG. 2: the utility model relates to a front view of a lifting hook with a self-locking structure for a tower crane;
FIG. 3: the cross-sectional view of riser position.
The reference numbers are as follows:
101-transition plate, 102-hanging plate, 103-vertical plate, 104-hanging ring, 201-reel, 202-connecting plate, 203-reaction cylinder, 204-through groove, 205-rotating shaft, 206-sliding groove, 207-guide rod, 208-sliding block, 209-first spring, 210-pin shaft, 211-supporting rod, 212-lifting seat, 213-second spring, 214-sliding rod, 215-base plate, 216-locking rod, 217-locking hole, 218-pulling rope and 219-wire hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-3, a lifting hook with a self-locking structure for a tower crane comprises a hook body and a self-locking device;
the lifting hook body comprises a transition plate 101, a hanging plate 102 fixedly connected with the top of the transition plate 101 and a vertical plate 103 fixedly connected with the bottom of the transition plate 101, the transition plate 101 is 1/4 circular, the hanging plate 102 is L-shaped, and the hanging plate 102 is fixedly connected with a hanging ring 104;
the self-locking device comprises a wire wheel 201, a connecting plate 202 and a reaction cylinder 203, wherein the upper part of a vertical plate 103 is provided with a through groove 204, the front side and the rear side of the through groove 204 are symmetrically and rotatably connected with rotating shafts 205, one end of each rotating shaft 205 extending into the through groove 204 is fixedly connected with the wire wheel 201, the axes of the two rotating shafts 205 are superposed with the axis of a transition plate 101, the front side and the rear side of the transition plate 101 are respectively provided with 1/4 circular sliding grooves 206, guide rods 207 with the same shape as the sliding grooves 206 are fixedly connected in the sliding grooves 206, sliding blocks 208 are connected in the sliding grooves 206 in a sliding manner, the sliding blocks 208 are also connected with the guide rods 207 in a sliding manner, a first spring 209 is sleeved on the guide rods 207 between the sliding blocks 208 and the bottom of the sliding grooves 206, pin shafts 210 are fixedly connected on the outer sides of the sliding blocks 208, the left end of the connecting plate 202 is rotatably connected with the pin shafts 210, the right end of the connecting plate 202 is fixedly connected with the corresponding rotating shaft 205, and supporting rods 211 are uniformly and fixedly connected between the connecting plates 202 along the length direction, the reaction cylinder 203 is fixedly connected in the vertical plate 103, the lifting seat 212 is slidably connected in the reaction cylinder 203, a second spring 213 is fixedly connected between the lower surface of the lifting seat 212 and the bottom of the reaction cylinder 203, a slide rod 214 is fixedly connected at the center of the upper surface of the lifting seat 212, the slide rod 214 is slidably connected with the top plate of the reaction cylinder 203, a seat plate 215 is fixedly connected at the top of the slide rod 214, a lock rod 216 is uniformly and fixedly connected on the upper surface of the seat plate 215 along the length direction of the upper surface, a lock hole 217 corresponding to the lock rod 216 is arranged on the hanger plate 102, pull ropes 218 are fixedly connected on the left and right symmetry of the lower surface of the seat plate 215, a thread hole 219 penetrating through the through groove 204 is arranged on the upper surface of the vertical plate 103, and the thread hole 219 penetrates through the through groove 204 and is wound on the corresponding thread wheel 201.
Preferably, the elastic coefficient of the first spring 209 is 5 to 10 times that of the second spring 213.
Preferably, the first spring 209 is in a natural state when the slider 208 is in contact with the top of the chute 206, and the second spring 213 is in a natural state when the elevating base 212 is in contact with the top plate of the reaction cylinder 203.
Preferably, the pull cord 218 is a multi-strand wound steel cord.
Preferably, each of the pulling ropes 218 is wound around the corresponding pulley 201 clockwise as viewed in the front-to-rear direction.
The utility model discloses a concrete implementation does:
when the lifting hook is used, a lifting arm of a tower crane is connected with the lifting ring 104, a lifting rope for binding materials enters the lifting hook body through a gap between the lifting plate 102 and the vertical plate 103, the gravity of the materials acts on the connecting plate 202 through the lifting rope in the process of lifting the materials by the lifting arm of the tower crane, so that the integral structure of the connecting plate 202, the supporting rod 211 and the sliding block 208 rotates anticlockwise, at the moment, an included angle is formed between the connecting plate 202 and the transition plate 101, the lifting rope is positioned at the included angle, the connecting plate 202 drives the rotating shaft 205 and the wire wheel 201 to rotate anticlockwise in the anticlockwise rotating process, as the pull rope 218 is wound on the wire wheel 201 clockwise, when the wire wheel 201 rotates anticlockwise, the pull rope 218 is unreeled on the wire wheel 201, the integral structure of the lifting seat 212, the sliding rods 214, 215 and the lock rod 216 is jacked up under the action of the second spring 213, the lock rod 216 enters the corresponding lock hole 217, so that in the lifting process, the lifting rope can not break away from the lifting hook body, and the lifting safety is improved.
It can be known from the foregoing, at the in-process of material hoist and mount, locking operation is realized in locking lever 216 automatic entering lockhole 217, and simultaneously, after hoist and mount are accomplished, the material falls on subaerial, at this moment, the gravity of material can not be used in connecting plate 202, and first spring 209 replies original length, thereby make stay cord 218 roll on line wheel 201 again, second spring 213 is compressed, locking lever 216 breaks away from lockhole 217, realize automatic unblock, because the elastic coefficient of first spring 209 is 5 ~ 10 times of second spring 213, thereby the pressure of second spring 213 can be overcome to the restoring force of first spring 209, make second spring 213 compress smoothly, realize promptly the utility model discloses a reset, prepare for next hoist and mount work.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The utility model provides a tower crane is with playing lifting hook with auto-lock structure which characterized in that: comprises a hook body and a self-locking device;
the lifting hook body comprises a transition plate, a lifting plate fixedly connected with the top of the transition plate and a vertical plate fixedly connected with the bottom of the transition plate, the transition plate is 1/4 circular, the lifting plate is L-shaped, and a lifting ring is fixedly connected to the lifting plate;
the self-locking device comprises a wire wheel, a connecting plate and a reaction cylinder, wherein the upper part of a vertical plate is provided with a through groove, the front side and the rear side of the through groove are symmetrically and rotatably connected with rotating shafts, one end of each rotating shaft extending into the through groove is fixedly connected with the wire wheel, the axes of the two rotating shafts are superposed with the axis of a transition plate, the front side and the rear side of the transition plate are respectively provided with 1/4 circular chutes, the chutes are internally and fixedly connected with guide rods with the same shapes, the chutes are internally and slidably connected with sliding blocks, the sliding blocks are also in sliding connection with the guide rods, the guide rods between the sliding blocks and the bottoms of the chutes are sleeved with first springs, the outer sides of the sliding blocks are fixedly connected with pin shafts, the left end of the connecting plate is rotatably connected with the pin shafts, the right end of the connecting plate is fixedly connected with the corresponding rotating shaft, supporting rods are uniformly and fixedly connected between the connecting plates along the length direction of the connecting plates, and the reaction cylinder is fixedly connected in the vertical plate, sliding connection has the lift seat in the reaction cylinder, the rigid coupling has the second spring between the lower surface of lift seat and the bottom of reaction cylinder, and the upper surface center rigid coupling of lift seat has the slide bar, the slide bar has the bedplate with the roof sliding connection of reaction cylinder, and the top rigid coupling of slide bar has the bedplate, the even rigid coupling of upper surface along its length direction of bedplate has the locking lever, be equipped with the lockhole that corresponds with the locking lever on the hanger plate, the lower surface bilateral symmetry rigid coupling of bedplate has the stay cord, the upper surface of riser is equipped with the line hole that runs through logical groove, stay cord warp hole penetrates logical groove and twines on the line wheel that corresponds.
2. The tower crane lifting hook with the self-locking structure as claimed in claim 1, wherein: the elastic coefficient of the first spring is 5-10 times that of the second spring.
3. The tower crane lifting hook with the self-locking structure as claimed in claim 1, wherein: when the sliding block is in contact with the top of the sliding groove, the first spring is in a natural state, and when the lifting seat is in contact with the top plate of the reaction cylinder, the second spring is in a natural state.
4. The tower crane lifting hook with the self-locking structure as claimed in claim 1, wherein: the pull rope is a multi-strand winding type steel wire rope.
5. The tower crane lifting hook with the self-locking structure as claimed in claim 1, wherein: and when viewed from the front to the back, each pulling rope is wound on the corresponding wire wheel clockwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120689399.4U CN214879557U (en) | 2021-04-06 | 2021-04-06 | Tower crane lifting hook with self-locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120689399.4U CN214879557U (en) | 2021-04-06 | 2021-04-06 | Tower crane lifting hook with self-locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214879557U true CN214879557U (en) | 2021-11-26 |
Family
ID=78886387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120689399.4U Active CN214879557U (en) | 2021-04-06 | 2021-04-06 | Tower crane lifting hook with self-locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214879557U (en) |
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2021
- 2021-04-06 CN CN202120689399.4U patent/CN214879557U/en active Active
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