CN220886689U

CN220886689U - Automatic lifting hook

Info

Publication number: CN220886689U
Application number: CN202322766978.6U
Authority: CN
Inventors: 贺哲林; 王忠林; 陈庆丰; 梁永强; 李棚; 张国斌; 廖晓平; 李俸兵
Original assignee: Shenzhen Jiahua Concrete Pipe Pile Co ltd
Current assignee: Shenzhen Jiahua Concrete Pipe Pile Co ltd
Priority date: 2023-10-16
Filing date: 2023-10-16
Publication date: 2024-05-03
Anticipated expiration: 2033-10-16

Abstract

The utility model discloses an automatic lifting hook, which comprises a bracket, wherein a fixed clamping plate is arranged at one end of the bracket, a movable clamping plate is movably arranged at the other end of the bracket, a lifting ring is arranged above the bracket, and the lifting ring is respectively connected with the inner sides of the fixed clamping plate and the movable clamping plate through four lifting slings; a clamping plate control assembly is arranged above the bracket and is used for controlling the movable clamping plate to keep clamping-opening movement or change in clamping-opening movement when ascending or descending. The lifting hook is suitable for the lifting hook, and the clamping plate control assembly is assembled on the lifting hook, so that when the lifting hook is used for lifting and transferring articles, workers do not need to be added at the lifting position to manually clamp the lifting hook on a product, thus not only saving manpower and reducing the cost of lifting and transferring the product, but also ensuring that personnel are not injured due to collapse of the product and loosening of the lifting hook in the lifting and transferring process of the product, and improving the safety of the lifting process.

Description

Automatic lifting hook

Technical Field

The utility model relates to the technical field of product lifting and transferring, in particular to an automatic lifting hook.

Background

At present, the hoisting of stacked small and medium-sized products is carried out by manually linking (splitting) the hoisting tool and the workpiece, and then transferring the workpiece by a crane (or a crane). However, in the operation mode, a worker is required to stand on the product stack to hang the lifting appliance on the lifting hook, and a crane operator (crane operator) judges the distance between the lifting hook and the lifting appliance incorrectly, so that the worker can fall off the product stack; secondly, because the stacking of the products is unstable or the stacking caused by the fact that the hoisting sequence is not opposite, personnel can possibly fall off the product stack, and serious potential safety hazards exist.

Disclosure of utility model

The utility model aims to overcome the defects in the prior art and provides an automatic lifting hook.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

The utility model discloses an automatic lifting hook, which comprises a bracket, wherein a fixed clamping plate is arranged at one end of the bracket, a movable clamping plate is arranged at the other end of the bracket, an assembly plate is arranged at the bottom of the movable clamping plate, the assembly plate is rotationally connected with the bracket through a pin shaft, a lifting ring is arranged above the bracket, and the lifting ring is respectively connected with the inner sides of the fixed clamping plate and the movable clamping plate through four lifting slings;

A clamping plate control assembly is arranged above the bracket and is used for controlling the movable clamping plate to keep clamping-opening movement or change in clamping-opening movement when ascending or descending.

Preferably, the clamping plate control assembly comprises a U-shaped piece, a lock body, a lock catch control mechanism and a reset spring, wherein the U-shaped piece is fixedly installed on the upper surface of the movable clamping plate, the lock body is fixedly installed above the support, the top of the lock body adopts an opening structure, the lock catch adopts an L-shaped structure, the bent part of the lock catch is rotatably installed on one side of the opening structure of the lock body, so that the lock catch can be opened or closed when being rotated, the lock catch control mechanism is arranged above the support and used for controlling the lock catch to rotate, one end of the reset spring is fixed above the support, and the other end of the reset spring is fixed above the movable clamping plate.

Preferably, the lock catch control mechanism comprises a first vertical plate and a second vertical plate which are vertically arranged above the support, a chain wheel shaft is rotatably arranged between the first vertical plate and the second vertical plate, a crankshaft is arranged at one end of the chain wheel shaft, a fixing rod is arranged at the outer side of the crankshaft, a clamping groove is formed in one end of the lock catch in the length direction, the fixing rod is clamped in the clamping groove, a chain wheel is sleeved on the chain wheel shaft, and a chain is sleeved on the chain wheel in a sleeved mode.

Preferably, two parallel fixing plates are arranged at the center of the upper part of the bracket, a fixed pulley is rotatably arranged between the two fixing plates, a traction rope is wound on the fixed pulley, one end of the traction rope is connected with the hanging ring, the other end of the traction rope is connected with one end of the chain, and the other end of the chain is fixedly connected to a rod between the two fixing plates through a third spring.

Preferably, the sprocket shaft is further sleeved with a swivel and a ratchet, the swivel is rotatably mounted on the inner side of the third vertical plate, the ratchet is fixedly mounted on the sprocket shaft, a limiting block of an L-shaped structure is rotatably mounted on the inner side of the second vertical plate through a pin shaft, the vertical end of the limiting block is clamped with the step position of the ratchet, and a first spring is arranged between the other end of the limiting block and the second vertical plate.

Preferably, the top of the swivel is provided with an opening, a stop block is arranged at the opening structure of the swivel, and a second spring is arranged between the top of the stop block and the swivel.

Compared with the prior art, the utility model has the following beneficial effects:

The device is through assembling splint control assembly on the lifting hook, and splint control assembly can keep the activity splint to keep the centre gripping when rising or decline-open the action or change in centre gripping-opening the action, consequently, when adopting this lifting hook to carry out the hoist and mount transfer of article, need not increase the manual centre gripping of lifting hook to the product in hoist and mount position, both practiced thrift the manpower like this, reduced the cost that the product hoist and mount was transferred, can guarantee again can not lead to personnel injury because of the collapse of product and the loosening of lifting hook at the in-process that the product hoist and mount was transferred, promoted the security of hoist and mount process.

Drawings

FIG. 1 is a schematic view of a first view structure according to the present utility model;

FIG. 2 is a schematic view of a second view angle structure according to the present utility model;

FIG. 3 is a schematic view of a third view angle structure according to the present utility model;

FIG. 4 is an enlarged schematic view of the structure of the area A in FIG. 3 according to the present utility model;

Fig. 5 is a schematic view showing a partial structure of the present utility model.

Reference numerals: 1. a fixed clamping plate; 2. a sling; 3. a hanging ring; 5. a return spring; 6. a movable clamping plate; 7. a bracket; 8. an assembly plate; 9. a traction rope; 10. a chain; 11. a fixing plate; 12. a fixed pulley; 13. a U-shaped piece; 14. a first vertical plate; 15. chain wheel shaft; 16. a second vertical plate; 17. locking; 18. a lock body; 19. a ratchet wheel; 20. a limiting block; 21. a first spring; 22. a second spring; 23. a stop block; 24. a swivel; 25. a crankshaft; 26. a fixed rod; 27. a third vertical plate; 28. a sprocket; 29. and a third spring.

Detailed Description

An embodiment of an automatic hook according to the present utility model is further described below with reference to fig. 1 to 5. An automatic hook of the present utility model is not limited to the description of the following embodiments.

Example 1:

This embodiment provides an automatic lifting hook, as shown in fig. 1-5, including support 7, fixed splint 1 is installed to the one end of support 7, and movable splint 6 is installed to the other end, and assembly plate 8 is installed to movable splint 6 bottom, through the round pin axle rotation connection between assembly plate 8 and the support 7, the top of support 7 is provided with rings 3, is connected with the inboard of fixed splint 1 and movable splint 6 respectively through four hoist ropes 2 on the rings 3, and the top of support 7 is provided with splint control assembly, and it is used for keeping the action of centre gripping-opening or change in centre gripping-opening action when rising or descending to be used for controlling movable splint 6.

Example 2:

The embodiment provides an automatic lifting hook, as shown in fig. 1, the clamping plate control assembly comprises a U-shaped piece 13, a lock body 18, a lock catch 17, a lock catch control mechanism and a return spring 5, wherein the U-shaped piece 13 is fixedly installed on the upper surface of a movable clamping plate 6, the lock body 18 is fixedly installed above a support 7, the top of the lock body 18 adopts an opening structure, the lock catch 17 adopts an L-shaped structure, the bending part of the lock catch 17 is rotatably installed on one side of the opening structure of the lock body 18, so that the lock catch 17 can open or seal an opening of the lock body 18 during rotation, and the lock catch control mechanism is arranged above the support 7 and used for controlling the lock catch 17 to rotate, and the return spring 5 is fixed above the support 7 at one end and fixed above the movable clamping plate 6 at the other end.

The lock catch control mechanism comprises a first vertical plate 14 and a second vertical plate 16 which are vertically arranged above a bracket 7, a chain wheel shaft 15 is rotatably arranged between the first vertical plate 14 and the second vertical plate 16, a crankshaft 25 is arranged at one end of the chain wheel shaft 15, a fixed rod 26 is arranged at the outer side of the crankshaft 25, a clamping groove is formed in one end of a lock catch 17 along the length direction, the fixed rod 26 is clamped in the clamping groove, a chain wheel 28 is sleeved on the chain wheel shaft 15, and a chain 10 is sleeved and fixed on the chain wheel 28.

Two parallel fixed plates 11 are arranged in the center above the bracket 7, a fixed pulley 12 is rotatably arranged between the two fixed plates 11, a traction rope 9 is wound on the fixed pulley 12, one end of the traction rope 9 is connected with the hanging ring 3, the other end of the traction rope 9 is connected with one end of a chain 10, and the other end of the chain 10 is fixedly connected to a rod between the two fixed plates 11 through a third spring 29.

The sprocket shaft 15 is further sleeved with a swivel 24 and a ratchet 19, wherein the swivel 24 is rotatably installed on the inner side of a third vertical plate 27, the ratchet 19 is fixedly installed on the sprocket shaft 15, a limiting block 20 with an L-shaped structure is rotatably installed on the inner side of a second vertical plate 16 through a pin shaft, the vertical end of the limiting block 20 is clamped with the step position of the ratchet 19, and a first spring 21 is arranged between the other end of the limiting block 20 and the second vertical plate 16.

The top of swivel 24 has the opening, and the open structure department of swivel 24 installs the backstop piece 23, is provided with second spring 22 between the top of backstop piece 23 and the swivel 24.

In combination with examples 1-2 and with figures 1-3, the working principle of the application is as follows:

The device has four actions when in use:

action one: lifting hook rises to drive sprocket 28 to rotate clockwise through hauling rope 9, drive stop block 23, swivel 24 rotate and stir ratchet 19 to rotate synchronously through the eccentric shaft, make ratchet 19 and crankshaft 25 rotate 180 degrees clockwise too, crankshaft 25 stir the lock catch 17 to rotate, make lock catch 17, lock body 18 close, the hoist is in the open state;

action two: when the lifting hook is lowered, the ratchet wheel 19 is fixed by the limiting block 20, the angle of the crankshaft 25 is unchanged, the locking buckle and the lock body 18 are kept closed, the retaining block 23 rotates by the eccentric shaft on the ratchet wheel 19 under the elastic force of the third spring 29 on the chain 10, and the chain wheel 28 rotates anticlockwise to reset;

And action III: when the lifting hook ascends again, the chain wheel 28 is driven to rotate clockwise, the stop block 23 and the swivel 24 are driven to rotate, the ratchet wheel 19 is driven to rotate synchronously through the eccentric shaft, the ratchet wheel 19 and the crankshaft 25 rotate clockwise by 180 degrees, the crankshaft 25 drives the lock catch 17 to rotate, the lock catch 17 and the lock body 18 are turned into open after being closed, the movable clamping plate 6 rotates under the action of the sling 2, the clamping of a product is completed, the product and the sling are fixed, and the product can be transported;

And action four: when the lifting hook is lowered, the ratchet wheel 19 is fixed by the limiting block 20, the angle of the crankshaft 25 is unchanged, the lock catch 17 and the lock body 18 are kept open, the retaining block 23 rotates by the eccentric shaft on the ratchet wheel 19 under the elastic action of the third spring 29 on the chain 10, the chain wheel 28 rotates anticlockwise to reset, meanwhile, the movable clamping plate 6 is opened under the elastic action of the reset spring 5, the lifting appliance and the product are separated, and one-time product transfer is completed;

The four actions are sequentially and circularly carried out, and are matched with the process of hoisting the product, so that the product can be automatically clamped and separated.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An automatic lifting hook, characterized in that: the lifting device comprises a support (7), wherein a fixed clamping plate (1) is arranged at one end of the support (7), a movable clamping plate (6) is arranged at the other end of the support, an assembly plate (8) is arranged at the bottom of the movable clamping plate (6), the assembly plate (8) is rotationally connected with the support (7) through a pin shaft, a lifting ring (3) is arranged above the support (7), and the lifting ring (3) is respectively connected with the inner sides of the fixed clamping plate (1) and the movable clamping plate (6) through four lifting ropes (2);

A clamping plate control assembly is arranged above the bracket (7) and is used for controlling the movable clamping plate (6) to keep clamping-opening action or change in clamping-opening action when ascending or descending.

2. An automatic hook according to claim 1, wherein: the cleat control assembly includes:

the U-shaped piece (13) is fixedly arranged on the upper surface of the movable clamping plate (6);

The lock body (18) is fixedly arranged above the bracket (7), and the top of the lock body (18) adopts an opening structure;

The lock catch (17) adopts an L-shaped structure, and a bending part of the lock catch (17) is rotatably arranged on one side of an opening structure of the lock body (18), so that the lock catch (17) can open or close an opening of the lock body (18) when rotating;

The lock catch control mechanism is arranged above the bracket (7) and used for controlling the lock catch (17) to rotate;

And a return spring (5) with one end fixed above the bracket (7) and the other end fixed above the movable clamp plate (6).

3. An automatic hook according to claim 2, wherein: the utility model provides a hasp control mechanism is including vertical first riser (14) and second riser (16) of installing support (7) top, rotate on first riser (14) and install sprocket shaft (15), bent axle (25) are installed to one side of second riser (16), bent axle (25) outside installation dead lever (26), the draw-in groove has been seted up along length direction to one end of hasp (17), dead lever (26) block is in the draw-in groove, the cover is equipped with sprocket (28) on sprocket shaft (15), cup joint on sprocket (28) and be fixed with chain (10).

4. An automatic hook according to claim 3, wherein: two parallel fixed plates (11) are installed in top center department of support (7), two fixed pulley (12) are installed in the rotation between fixed plate (11), the round joint has haulage rope (9) on fixed pulley (12), the one end of haulage rope (9) with rings (3) are connected, the other end of haulage rope (9) with one end of chain (10) is connected, the other end of chain (10) is through third spring (29) fixed connection on the pole between two fixed plate (11).

5. An automatic hook according to claim 4, wherein: the chain wheel shaft (15) is sleeved with a swivel (24), a ratchet wheel (19) is installed on the chain wheel shaft (15), an eccentric shaft is arranged on the ratchet wheel (19) and connected with the swivel (24), the ratchet wheel (19) synchronously rotates when the swivel (24) rotates, a limiting block (20) with an L-shaped structure is installed on the inner side of the second vertical plate (16) through a pin shaft in a rotating mode, the vertical end of the limiting block (20) is clamped with the step position of the ratchet wheel (19), and a first spring (21) is arranged between the other end of the limiting block (20) and the second vertical plate (16).

6. An automatic hook according to claim 5, wherein: the top of swivel (24) has the opening, the open structure department of swivel (24) installs stop piece (23), the top of stop piece (23) with be provided with second spring (22) between swivel (24).