CN211141293U

CN211141293U - Lifting appliance

Info

Publication number: CN211141293U
Application number: CN201922209428.8U
Authority: CN
Inventors: 崔润兵; 任少强; 吴应明; 田殿军; 李光明; 左转玲; 李增良; 贺显林; 杨莹; 朱正如; 任彦丽; 徐顺利; 孟卓; 许涛; 李彬
Original assignee: China Railway Construction Corp Ltd CRCC; China Railway Changan Heavy Industry Co Ltd
Current assignee: China Railway Construction Corp Ltd CRCC; China Railway Changan Heavy Industry Co Ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-07-31
Anticipated expiration: 2029-12-10

Abstract

The utility model discloses a lifting appliance, which comprises a rotation hook hanger, wherein the rotation hook hanger stretches into a lifting hole on a lifting object and then accesses the lifting object through rotation; the lifting hook autorotation driving mechanism is used for driving the autorotation lifting hook device to autorotate to fetch objects or autorotate to reset; the self-locking mechanism is matched with the lifting hook autorotation driving mechanism and can maintain the autorotation lifting hook in-place state; and the mounting frame provides the installation basis of the autorotation hook device, the hook autorotation driving mechanism and the self-locking mechanism and provides the driving pressure for the working of the hook autorotation driving mechanism. The utility model discloses can realize the couple and hang thing automatic connection and disconnection, safe and reliable does not need constructor manual to be connected the lifting hook with hanging the thing, provides the hoist and mount efficiency who hangs the thing.

Description

Lifting appliance

Technical Field

The utility model belongs to the technical field of the hoist, concretely relates to hoist.

Background

The inverted arch is a reverse arch structure arranged at the bottom of the tunnel for improving the stress condition of an upper supporting structure, forms a tunnel whole with the secondary lining, is the foundation of the tunnel structure, and is one of the main components of the tunnel structure. The cast-in-place inverted arch quality control factors are more, the construction progress is slow, and the accurate control is not suitable for the problems in the inverted arch of the tunnel constructed by the traditional new Austrian method; under the long-term vibration action of a train, inverted arch construction is not in place, and the normal operation of a tunnel is influenced due to the defects of cracking, deformation, water inrush, upwelling, slurry turning, mud pumping and the like. In order to solve the problems, in order to respond to a call of guidance comments about the rapid development of the fabricated building issued by the office of the state department in 2016, a prefabricated structure scheme is determined to be adopted in the tunnel inverted arch construction, a lifting appliance is required to be used for lifting the prefabricated inverted arch blocks in the prefabricated structure construction process, and a general lifting appliance existing in the market cannot meet the requirement for lifting the prefabricated inverted arch blocks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed at, provide a hoist, its novel in design is reasonable, can realize the couple and hang thing automatic connection and automatic disconnection, and safe and reliable does not need constructor manual to be connected the lifting hook with hanging the thing, provides the hoist and mount efficiency who hangs the thing, has saved the manpower, convenient to popularize and use.

In order to solve the technical problem, the utility model discloses a technical scheme is: a spreader, comprising:

the self-rotation hook lifting device stretches into a lifting hole on the hanging object and then probes the hanging object through self-rotation;

the lifting hook autorotation driving mechanism is used for driving the autorotation lifting hook device to autorotate to fetch objects or autorotate to reset;

the self-locking mechanism is matched with the lifting hook autorotation driving mechanism and can maintain the autorotation lifting hook in-place state;

and the mounting frame provides the installation basis of the autorotation hook device, the hook autorotation driving mechanism and the self-locking mechanism and provides the driving pressure for the working of the hook autorotation driving mechanism.

The lifting appliance is characterized in that: the autorotation hook comprises a bearing with a seat, a hook rod matched with the bearing with the seat and a hook arranged at the bottom of the hook rod, and a steering groove is formed in the hook rod.

The lifting appliance is characterized in that: the belt seat bearing comprises a bearing and a bearing mounting seat matched with the bearing, a rod sleeve used for limiting the position of the hook rod is arranged at the bottom of the bearing mounting seat, a limiting hole is formed in the rod sleeve along the length direction of the rod sleeve, and the top of the bearing mounting seat is sealed through a mounting cover.

The lifting appliance is characterized in that: the lifting hole is a convex step lifting hole, the upper aperture size of the convex step lifting hole is smaller than the lower aperture size of the convex step lifting hole, the thickness of the lifting hook is smaller than the upper aperture width of the convex step lifting hole, and the width of the lifting hook is larger than the upper aperture width of the convex step lifting hole.

The lifting appliance is characterized in that: the number of the limiting holes is equal to that of the steering grooves, the limiting holes correspond to the steering grooves one by one, and the number of the steering grooves is 1-4; when the quantity that turns to the groove is 2 ~ 4, 2 ~ 4 turn to the groove and be axisymmetric setting along the axis of coupler shaft, and 2 ~ 4 spacing holes are axisymmetric setting along the axis of coupler shaft.

The lifting appliance is characterized in that: the steering groove includes:

the initial maintaining groove is used for maintaining the original position of the lifting hook unchanged in the process of extending into the lifting hole or extending out of the lifting hole;

the self-rotating groove is used for limiting the rotating direction and the rotating angle of the lifting hook;

and the turning maintaining groove is used for maintaining the rotating direction and the rotating angle of the lifting hook unchanged when the lifting hook extracts the hanging object.

The lifting appliance is characterized in that: the initial maintaining groove and the steering maintaining groove are vertical strip-shaped grooves, the self-rotating groove is a spiral groove, the initial maintaining groove is located on the lower side of the spiral groove, the steering maintaining groove is located on the upper side of the spiral groove, and the initial maintaining groove, the spiral groove and the steering maintaining groove are communicated in sequence.

The lifting appliance is characterized in that: the spiral angle of the spiral groove is 30-150 degrees.

The lifting appliance is characterized in that: the spiral angle of the spiral groove is 90 degrees.

The lifting appliance is characterized in that: the lifting hook rotation driving mechanism comprises a wing plate which is of a hollow structure and sleeved outside the rod sleeve, an extrusion sleeve arranged at the bottom of the wing plate and a limiting sleeve which is arranged at the top of the wing plate and used for limiting a spring, wherein a clamping piece matched with the steering groove is arranged on the inner wall of the limiting sleeve.

The lifting appliance is characterized in that: the limiting sleeve is communicated with the wing plate and comprises a limiting cylinder inner ring plate and a limiting cylinder outer ring plate, a limiting cavity is formed between the limiting cylinder inner ring plate and the limiting cylinder outer ring plate, one end of the spring is fixed on the wing plate at the bottom of the limiting cavity, and the other end of the spring is fixed on the bottom surface of the bearing mounting seat.

The lifting appliance is characterized in that: the clamping piece penetrates through the limiting hole to be matched with the steering groove.

The lifting appliance is characterized in that: the number of the clamping pieces is equal to that of the steering grooves and corresponds to that of the steering grooves one to one.

The lifting appliance is characterized in that: the number of the self-locking mechanisms is one or more.

The lifting appliance is characterized in that: the self-locking mechanism comprises a self-locking plate, a guide sliding groove for sliding of the bolt is formed in the self-locking plate, the bolt is installed at one end of the movable rod, one end of the movable rod is hinged to the hinged plate through the hinged piece, and the hinged plate is installed on the wing plate.

The lifting appliance is characterized in that: the guide sliding groove sequentially comprises a first check step, a second check step and a third check step, the guide sliding groove is divided into a sliding groove rotating section, a sliding groove self-locking section, a sliding groove resetting section and a sliding groove initial section by the guide sliding groove, the sliding groove initial section is smoothly connected with the sliding groove rotating section, the tail end of the sliding groove rotating section is higher than the starting end of the sliding groove self-locking section, the tail end of the sliding groove self-locking section is higher than the starting end of the sliding groove resetting section, the tail end of the sliding groove resetting section is intersected with the connecting end of the sliding groove initial section and the connecting end of the sliding groove rotating section, and the tail end of the sliding groove resetting section is higher than the connecting end of the sliding groove.

The lifting appliance is characterized in that: the mounting bracket is box mounting bracket, the bearing mount pad is installed the top of box mounting bracket, and pterygoid lamina and auto-lock board are all installed in the box mounting bracket, the extrusion sleeve stretches out outside the box mounting bracket.

The lifting appliance is characterized in that: the fixed plate of box mounting bracket has been seted up the top through-hole, the bottom through-hole has been seted up on the bottom plate of box mounting bracket, the size of bottom through-hole is less than the wing plate size, and the extrusion sleeve passes through the bottom through-hole stretch out to outside the box mounting bracket, the rod cover passes in the top through-hole stretches into the extrusion sleeve, the hook lever passes the rod cover and stretches out outside the extrusion sleeve.

Compared with the prior art, the utility model has the following advantage:

1. the utility model discloses set up rotation lifting hook ware, can realize the couple and hang thing automatic connection and automatic disconnection, safe and reliable does not need constructor manual to be connected the lifting hook with hanging the thing, provides the hoist and mount efficiency who hangs the thing, has saved the manpower, convenient to popularize and use.

2. The utility model discloses set up lifting hook rotation actuating mechanism and self-locking mechanism cooperation, order about rotation lifting hook ware rotation and get the thing or the rotation resets to can maintain rotation lifting hook ware rotation state in place, the in-process jib of avoiding lifting by crane the thing rotates, leads to lifting by crane the thing and drops, has avoided the potential safety hazard simultaneously, and is reliable stable, excellent in use effect.

3. The utility model discloses set up the mounting bracket, provide rotation lifting hook ware, lifting hook rotation actuating mechanism and self-locking mechanism's installation basis to a driving pressure of lifting hook rotation actuating mechanism work is provided, through the dead weight extrusion lifting hook rotation actuating mechanism of mounting bracket, realizes the lifting hook rotation, easy operation, convenient to popularize and use.

To sum up, the utility model relates to a novelty is reasonable, can realize the couple and hang thing automatic connection and automatic disconnection, safe and reliable does not need constructor manual to be connected the lifting hook with hanging the thing, provides the hoist and mount efficiency who hangs the thing, has saved the manpower, convenient to popularize and use.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Figure 1 is the structure schematic diagram that the utility model discloses the lifting hook is transferred.

Fig. 2 is a schematic structural view of the rotation of the lifting hook of the present invention.

Fig. 3 is a schematic structural view of the self-locking and hoisting device of the self-rotating hook of the present invention.

Fig. 4 is a sectional view a-a of fig. 1.

Fig. 5 is a schematic structural view of the self-locking plate of the present invention.

Fig. 6 is a schematic view of the connection relationship between the hook rod and the hook of the present invention.

Description of reference numerals:

1, hanging objects; 2, hoisting holes; 3, mounting a frame;

4, bearing mounting seats; 5, a bearing; 6-rod sleeve;

7-limiting holes; 8, hooking a rod; 9-a hook;

10-a steering groove; 10-1 — initial holding tank; 10-2-self-rotating tank;

10-3-a steering maintenance tank; 11-mounting a cover; 12-wing plate;

13-extruding the sleeve; 14-limiting a cylinder inner ring plate; 15-limiting cylinder outer ring plate;

16-a spring; 17-a clamping piece; 18-a hinge plate;

19-a movable rod; 20-self-locking plate; 21-a guide chute;

21-1-chute rotating section; 21-2-chute self-locking section; 21-3-chute reset segment;

21-4-initial section of chute; 22 — a first self-locking mechanism; 23-a second self-locking mechanism;

24-a first non-return step; 25-a second non-return step; 26-third non-return step.

Detailed Description

Example 1

As shown in fig. 1 to 6, the lifting device of the present invention comprises:

the self-rotation hook lifting device extends into a lifting hole 2 on the hanging object 1 and then automatically accesses the hanging object 1;

and the mounting frame 3 is used for providing an installation foundation for the rotation lifting hook device, the lifting hook rotation driving mechanism and the self-locking mechanism and providing a driving pressure for the working of the lifting hook rotation driving mechanism.

In this embodiment, the rotation lifting hook comprises a bearing with a seat, a hook rod 8 matched with the bearing with a seat, and a lifting hook 9 arranged at the bottom of the hook rod 8, and the hook rod 8 is provided with a turning groove 10.

In this embodiment, the rolling bearing includes bearing 5 and bearing mount 4 with bearing 5 complex, and the bottom of bearing mount 4 is provided with the rod cover 6 that is used for injecing 8 positions of gib arm, and spacing hole 7 has been seted up along its length direction to rod cover 6, and the top of bearing mount 4 is sealed through installation lid 11.

It needs to be explained that, the rolling bearing compact structure, loading and unloading are convenient, it is sealed perfect, bearing mount 4's bottom sets up the purpose of rod cover 6 and is injectd the position of hook bar 8, avoid because long-term rotation action leads to rolling bearing center skew, the effective life of hoist has been prolonged when having guaranteed the hoist precision, the purpose of having seted up spacing hole 7 on rod cover 6 along its length direction supplies fastener 17 to stretch into to turning to the inslot 10 on the hook bar 8, in the in-service use, spacing hole 7 preferably adopts the bar hole, the width in bar hole is unanimous with fastener 17 width, the removal orbit of fastener 17 has been injectd.

In this embodiment, the hoisting hole 2 is a convex step hoisting hole, the upper aperture size of the convex step hoisting hole is smaller than the lower aperture size of the convex step hoisting hole, the thickness of the lifting hook 9 is smaller than the upper aperture width of the convex step hoisting hole, so that the lifting hook 9 can conveniently enter the hoisting hole 2, the width of the lifting hook 9 is larger than the upper aperture width of the convex step hoisting hole, and the lifting hook 9 can conveniently enter the hoisting hole 2 and is clamped on the step bottom surface of the convex step hoisting hole through a steering card, so that the hoisted object 1 can be lifted at a later stage.

In this embodiment, the number of the limiting holes 7 and the number of the turning grooves 10 are both 1.

In this embodiment, the diverting groove 10 includes:

the initial maintaining groove 10-1 is used for maintaining the original position of the lifting hook 9 unchanged in the process of extending into the lifting hole 2 or extending out of the lifting hole 2;

a rotation slot 10-2 for defining a rotation direction and a rotation angle of the hook 9;

and a turning maintaining groove 10-3 for maintaining the rotating direction and the rotating angle of the hook 9 unchanged when the hook 1 is extracted.

In this embodiment, the initial maintaining groove 10-1 and the turning maintaining groove 10-3 are both vertical strip-shaped grooves, the self-turning groove 10-2 is a spiral groove, the initial maintaining groove 10-1 is located on the lower side of the spiral groove, the turning maintaining groove 10-3 is located on the upper side of the spiral groove, and the initial maintaining groove 10-1, the spiral groove and the turning maintaining groove 10-3 are sequentially communicated.

It should be noted that, the hook 9 adopts a symmetrical barb structure, the initial maintaining groove 10-1 and the turning maintaining groove 10-3 are both vertical strip-shaped grooves for providing a buffering space for the clip 17 and ensuring that the clip 17 turns to a proper position, the hook rod 8 does not rotate when the clip 17 moves in the initial maintaining groove 10-1 and the turning maintaining groove 10-3, the rotation groove 10-2 is a spiral groove, and the spiral angle of the spiral groove determines the rotation angle of the hook rod 8, in this embodiment, the spiral angle of the spiral groove is 30 to 150 degrees, when the hook 9 rotates and contacts with the step bottom surface of the convex step hoisting hole, a contact point lifted by the hook 9 can be provided, preferably, the spiral angle of the spiral groove is 90 degrees, so that the contact area between the hook 9 and the step bottom surface of the convex step hoisting hole is the largest, the stability of lifting the hoisted object is improved.

In this embodiment, the lifting hook rotation driving mechanism includes a wing plate 12 having a hollow structure and sleeved outside the rod sleeve 6, an extrusion sleeve 13 disposed at the bottom of the wing plate 12, and a limiting sleeve disposed at the top of the wing plate 12 and used for a limiting spring 16, a fastener 17 matched with the steering groove 10 is disposed on the inner wall of the limiting sleeve, and the fastener 17 passes through the limiting hole 7 and is matched with the steering groove 10.

It should be noted that the wing plate 12 is arranged to prevent the hook rotation driving mechanism from sliding out of the mounting frame 3, and to provide a mounting base for the hinge plate 18, so that the latch moves along with the movement of the wing plate 12, the bottom of the wing plate 12 is provided with the pressing sleeve 13, and the purpose that the pressing sleeve 13 projects out of the mounting frame 3 is to be convenient for being matched with the upper surface of the hanging object 1 to push the hook rotation driving mechanism, thereby compressing the spring 16 and pushing the clamping piece 17 to move.

In this embodiment, the limiting sleeve is communicated with the wing plate 12, the limiting sleeve comprises a limiting cylinder inner ring plate 14 and a limiting cylinder outer ring plate 15, a limiting cavity is formed between the limiting cylinder inner ring plate 14 and the limiting cylinder outer ring plate 15, one end of the spring 16 is fixed on the wing plate 12 at the bottom of the limiting cavity, and the other end of the spring 16 is fixed on the bottom surface of the bearing mounting seat 4.

It should be noted that, the compression and rebound path of the limiting spring 16 of the limiting sleeve avoids the compression, inclination and deformation of the spring 16, the failure of the self-rotation driving mechanism of the lifting hook and the damage of the lifting appliance.

In this embodiment, the self-locking mechanism includes a self-locking plate 20, a guide sliding slot 21 for a sliding pin is formed in the self-locking plate 20, the sliding pin is installed at one end of a movable rod 19, one end of the movable rod 19 is hinged to a hinged plate 18 through a hinge, and the hinged plate 18 is installed on the wing plate 12.

In this embodiment, the guide chute 21 is sequentially divided into a chute rotating section 21-1, a chute self-locking section 21-2, a chute resetting section 21-3 and a chute initial section 21-4 by a first non-return step 24, a second non-return step 25 and a third non-return step 26 on the guide chute 21, the chute initial section 21-4 is smoothly connected with the chute rotating section 21-1, the tail end of the chute rotating section 21-1 is higher than the starting end of the chute self-locking section 21-2, the tail end of the chute self-locking section 21-2 is higher than the starting end of the chute resetting section 21-3, the tail end of the chute resetting section 21-3 is intersected with the connecting end of the chute initial section 21-4 and the chute rotating section 21-1, and the tail end of the sliding chute resetting section 21-3 is higher than the connecting end of the sliding chute initial section 21-4 and the sliding chute rotating section 21-1.

It should be noted that, the cooperation of the movable rod 19 and the hinge plate 18 realizes the arbitrary rotation of the movable rod 19 within the range of 180 degrees, the structure is simple, the adjustment is fast, the guide chute 21 is divided into four sections, namely a chute rotating section 21-1, a chute self-locking section 21-2, a chute resetting section 21-3 and a chute initial section 21-4, by the first non-return step 24, the second non-return step 25 and the third non-return step 26, the chute rotating section 21-1 corresponds to the self-rotating groove 10-2 and the steering maintaining groove 10-3, and the rotation angle of the hook rod 8 is ensured; the sliding groove self-locking section 21-2 corresponds to the steering maintaining groove 10-3, so that after the spring 16 initially rebounds at the moment of lifting the hanging object 1, the clamping piece 17 is positioned in the steering maintaining groove 10-3, and the hook rod 8 keeps in the original position and does not rotate; the sliding groove resetting section 21-3 corresponds to the self-rotating groove 10-2 and ensures that the hook rod 8 is reset; the initial chute section 21-4 corresponds to the initial maintaining chute 10-1, the first check step 24 separates the rotating chute section 21-1 from the self-locking chute section 21-2, and the situation that when a hanging object is lifted, the bolt returns to the rotating chute section 21-1, so that the hook 9 rotates excessively and loses the optimal lifting position is avoided; the first non-return step 24 separates the chute self-locking section 21-2 from the chute resetting section 21-3, so that the self-locking mechanism is prevented from being unlocked; the first non-return step 24 separates the chute reset section 21-3 from the chute initial section 21-4, and ensures that the bolt is reset in place.

In this embodiment, the mounting frame 3 is a box-type mounting frame, the bearing mounting seat 4 is installed on the top end of the box-type mounting frame, the wing plate 12 and the self-locking plate 20 are both installed in the box-type mounting frame, and the extrusion sleeve 13 extends out of the box-type mounting frame.

It should be noted that the mounting bracket 3 provides an installation basis for the rotation hook, the hook rotation driving mechanism and the self-locking mechanism, and provides a driving pressure for the operation of the hook rotation driving mechanism, and the hook rotation driving mechanism is extruded by the dead weight of the mounting bracket 3 to realize the rotation of the hook 9.

In this embodiment, set up the top through-hole on the fixed board of box mounting bracket, set up the bottom through-hole on the bottom plate of box mounting bracket, the size of bottom through-hole is less than pterygoid lamina 12's size, and extrusion sleeve 13 passes through the bottom through-hole stretches out to outside the box mounting bracket, rod cover 6 passes in the top through-hole stretches into extrusion sleeve 13, and the gib block 8 passes rod cover 6 and stretches out outside extrusion sleeve 13.

It should be noted that, the utility model discloses can realize the couple and hang thing automatic connection and automatic disconnection, safe and reliable does not need constructor manual to be connected the lifting hook with hanging the thing, the efficiency of the hoist and mount of hanging the thing is provided, the manpower is saved, lifting hook rotation actuating mechanism and self-locking mechanism cooperation order about rotation lifting hook ware rotation and get the thing or the rotation resets, and can maintain rotation lifting hook ware rotation state in place, the in-process jib of avoiding hanging the thing and lifting by crane rotates, lead to hanging the thing and drop, the potential safety hazard has been avoided simultaneously, and is reliable and stable.

When the lifting appliance is used, the lifting appliance is moved by the crane, the lifting hook 9 is aligned to the lifting hole 2, and the lifting appliance is placed by the crane, so that the lifting hook 9 can be vertically placed in the lifting hole 2;

the lifting appliance is continuously lowered through the crane, the extrusion sleeve 13 is in contact with the upper surface of the lifted object 1, the mounting frame 3 extrudes the spring 16, the spring 16 is compressed, the limiting sleeve and the wing plate 12 move upwards, the clamping piece 17 is driven to move into the self-rotation groove 10-2 through the initial maintaining groove 10-1, the clamping piece 17 drives the hook rod 8 to rotate, the self-rotation of the lifting hook 9 is further realized, and meanwhile, the bolt moves into the chute rotating section 21-1 through the chute initial section 21-4;

the mounting frame 3 extrudes the spring 16, when the spring 16 is compressed to the maximum, the bolt falls into the sliding groove self-locking section 21-2, meanwhile, the clamping piece 17 is positioned at the top of the steering maintaining groove 10-3, the crane lifts the lifting appliance, the mounting frame 3 moves upwards, the clamping piece 17 slides downwards in the steering maintaining groove 10-3, the bolt is blocked by the first check step 24 to be self-locked, the clamping piece 17 stops sliding downwards in the steering maintaining groove 10-3, the self-locking mechanism self-locks the self-rotating hook device, at the moment, the resilience of the spring 16 is the initial resilience of the spring 16, and the hook 9 lifts the suspended object 1 to realize the lifting movement of the suspended object 1;

after the hoisted object 1 is hoisted in place, the hoisted object 1 does not apply pressure to the lifting hook 9 any more, the spring 16 resets to drive the clamping piece 17 to slide downwards, the clamping piece 17 moves to the initial maintaining groove 10-1 through the steering maintaining groove 10-3 and the self-rotating groove 10-2, the bolt slides to the initial sliding groove section 21-4 through the sliding groove self-locking section 21-2 and the sliding groove resetting section 21-3 to realize the unlocking of the self-locking mechanism, the clamping piece 17 drives the hook rod 8 to reset, and the crane lifts the hanger to separate the hanger from the hoisted object 1.

In this embodiment, the chute self-locking section 21-2 is a V-shaped structure, the V-shaped starting position of the chute self-locking section 21-2 is located on the left side of the central axis of the hinged plate 18, when the spring 16 is compressed to the maximum, the bolt falls into the V-shaped starting position of the chute self-locking section 21-2, the crane lifts the hanger, the mounting frame 3 moves upwards, when the clamping piece 17 slides downwards in the steering maintaining groove 10-3, the movable rod 19 drives the bolt to move leftwards, and the bolt is blocked by the first check step 24 to self-lock in the chute self-locking section 21-2.

Example 2

The difference between this embodiment and embodiment 1 is that the quantity of spacing hole 7 turn to the quantity of groove 10 with the quantity of fastener 17 is equal and the one-to-one, the quantity of spacing hole 7 turn to the quantity of groove 10 with the quantity of fastener 17 is 2 ~ 4, 2 ~ 4 turn to groove 10 and be axisymmetric setting along the axis of gib bar 8, and 2 ~ 4 spacing holes 7 are axisymmetric setting along the axis of gib bar 8, and 2 ~ 4 fastener 17 are axisymmetric setting along the axis of gib bar 8.

In this embodiment, the number of the self-locking mechanisms is plural.

It should be noted that, in this embodiment, it is preferable that the number of the limiting holes 7, the number of the steering grooves 10, the number of the clips 17, and the number of the self-locking mechanisms are 2, the 2 self-locking mechanisms are respectively a first self-locking mechanism 22 and a second self-locking mechanism 23, the first self-locking mechanism 22 and the second self-locking mechanism 23 have the same structural size and are axially symmetrically arranged along the central axis of the hook rod 8, and when the number of the limiting holes 7, the number of the steering grooves 10, the number of the clips 17, and the number of the self-locking mechanisms are 1, the structure of the hanger is asymmetric, and the balance of the hanger is poor in the use process; when the quantity of the limiting holes 7, the quantity of the steering grooves 10, the quantity of the clamping pieces 17 and the quantity of the self-locking mechanisms are more than 2, the structure of the lifting appliance is complex, the self weight is large, and the size is large, so that the quantity of the limiting holes 7, the quantity of the steering grooves 10, the quantity of the clamping pieces 17 and the quantity of the self-locking mechanisms are 2, the symmetry of the structure of the lifting appliance is guaranteed, the working balance of the lifting appliance is guaranteed, stability and reliability are realized, and meanwhile, the design and processing are simple and the cost is low.

The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.

Claims

1. A spreader, comprising:

the self-rotation hook lifting device stretches into the lifting hole (2) on the lifting object (1) and then probes the lifting object (1) through self-rotation;

and the mounting frame (3) is used for providing an installation foundation for the rotation lifting hook device, the lifting hook rotation driving mechanism and the self-locking mechanism and providing a driving pressure for the working of the lifting hook rotation driving mechanism.

2. A spreader according to claim 1, wherein: the autorotation hook comprises a bearing with a seat, a hook rod (8) matched with the bearing with the seat and a hook (9) arranged at the bottom of the hook rod (8), and a steering groove (10) is formed in the hook rod (8).

3. A spreader according to claim 2, wherein: the belt seat bearing comprises a bearing (5) and a bearing mounting seat (4) matched with the bearing (5), a rod sleeve (6) used for limiting the position of a hook rod (8) is arranged at the bottom of the bearing mounting seat (4), a limiting hole (7) is formed in the rod sleeve (6) along the length direction of the rod sleeve, and the top of the bearing mounting seat (4) is sealed through a mounting cover (11).

4. A spreader according to claim 2, wherein: the lifting hole (2) is a convex step lifting hole, the upper aperture size of the convex step lifting hole is smaller than the lower aperture size of the convex step lifting hole, the thickness of the lifting hook (9) is smaller than the upper aperture width of the convex step lifting hole, and the width of the lifting hook (9) is larger than the upper aperture width of the convex step lifting hole.

5. A spreader according to claim 3, wherein: the number of the limiting holes (7) is equal to that of the steering grooves (10) and corresponds to that of the steering grooves one by one, and the number of the steering grooves (10) is 1-4; when the quantity that turns to groove (10) is 2 ~ 4, 2 ~ 4 turn to groove (10) and are the axisymmetric setting along the axis of gib rod (8), and 2 ~ 4 spacing holes (7) are the axisymmetric setting along the axis of gib rod (8).

6. A spreader according to claim 2, wherein: the diverting channel (10) comprises:

the initial maintaining groove (10-1) is used for maintaining the original position of the lifting hook (9) unchanged in the process of extending into the lifting hole (2) or extending out of the lifting hole (2);

a rotation slot (10-2) for limiting the rotation direction and rotation angle of the hook (9);

a turning maintaining groove (10-3) for maintaining the rotating direction and the rotating angle of the lifting hook (9) unchanged when the lifting hook (9) extracts the hanging object (1).

7. A spreader according to claim 6, wherein: the initial maintaining groove (10-1) and the steering maintaining groove (10-3) are vertical strip-shaped grooves, the self-rotating groove (10-2) is a spiral groove, the initial maintaining groove (10-1) is located on the lower side of the spiral groove, the steering maintaining groove (10-3) is located on the upper side of the spiral groove, and the initial maintaining groove (10-1), the spiral groove and the steering maintaining groove (10-3) are communicated in sequence.

8. A spreader according to claim 7, wherein: the spiral angle of the spiral groove is 30-150 degrees.

9. A spreader according to claim 8, wherein: the spiral angle of the spiral groove is 90 degrees.

10. A spreader according to claim 5, wherein: the lifting hook rotation driving mechanism comprises a wing plate (12) which is of a hollow structure and sleeved outside the rod sleeve (6), an extrusion sleeve (13) arranged at the bottom of the wing plate (12) and a limiting sleeve which is arranged at the top of the wing plate (12) and used for a limiting spring (16), wherein a clamping piece (17) matched with the steering groove (10) is arranged on the inner wall of the limiting sleeve.

11. A spreader according to claim 10, wherein: spacing sleeve and pterygoid lamina (12) intercommunication, spacing sleeve includes spacing section of thick bamboo inner ring board (14) and spacing section of thick bamboo outer ring board (15), form spacing chamber between spacing section of thick bamboo inner ring board (14) and the spacing section of thick bamboo outer ring board (15), the one end of spring (16) is fixed on pterygoid lamina (12) of spacing chamber bottom, the other end of spring (16) is fixed on bearing mount pad (4) bottom surface.

12. A spreader according to claim 10, wherein: the clamping piece (17) penetrates through the limiting hole (7) to be matched with the steering groove (10).

13. A spreader according to claim 12, wherein: the number of the clamping pieces (17) is equal to that of the steering grooves (10) and corresponds to that of the steering grooves one to one.

14. A spreader according to claim 1, wherein: the number of the self-locking mechanisms is one or more.

15. A spreader according to claim 10, wherein: the self-locking mechanism comprises a self-locking plate (20), a guide sliding groove (21) for sliding of a bolt is formed in the self-locking plate (20), the bolt is installed at one end of a movable rod (19), one end of the movable rod (19) is hinged to a hinged plate (18) through a hinged piece, and the hinged plate (18) is installed on a wing plate (12).

16. A spreader according to claim 15, wherein: the guide chute (21) is divided into a chute rotating section (21-1), a chute self-locking section (21-2), a chute resetting section (21-3) and a chute initial section (21-4) through a first check step (24), a second check step (25) and a third check step (26) in sequence on the guide chute (21), the chute initial section (21-4) is smoothly connected with the chute rotating section (21-1), the tail end of the chute rotating section (21-1) is higher than the starting end of the chute self-locking section (21-2), the tail end of the chute self-locking section (21-2) is higher than the starting end of the chute resetting section (21-3), the tail end of the chute resetting section (21-3) is intersected with the connecting ends of the chute initial section (21-4) and the chute rotating section (21-1), and the tail end of the chute resetting section (21-3) is higher than the connecting ends of the chute initial section (21-4) and the chute rotating section (21-4) (21-1) connecting ends.

17. A spreader according to claim 15, wherein: mounting bracket (3) are box mounting bracket, install bearing mount pad (4) the top of box mounting bracket, pterygoid lamina (12) and auto-lock board (20) are all installed in the box mounting bracket, extrusion sleeve (13) stretch out outside the box mounting bracket.

18. A spreader according to claim 17, wherein: the utility model discloses a novel structure of a car bumper, including box mounting bracket, fixed board, bottom through-hole has been seted up to the fixed board of box mounting bracket, the bottom through-hole has been seted up to the bottom on the bottom plate of box mounting bracket, the size of bottom through-hole is less than the size of pterygoid lamina (12), and extrusion sleeve (13) pass through the bottom through-hole stretches out to outside the box mounting bracket, rod cover (6) pass the top through-hole stretches into to extrusion sleeve (13) in, hook rod (8) pass rod cover (6) stretch out to outside extrusion sleeve (13.