CN112173955A

CN112173955A - Anti-hook-off mechanism for hoisting tower crane

Info

Publication number: CN112173955A
Application number: CN202010863455.1A
Authority: CN
Inventors: 项钰; 鲍佳; 陈亚杰
Original assignee: Huadong Building Co Ltd of China Construction Fifth Engineering Bureau Co Ltd
Current assignee: Huadong Building Co Ltd of China Construction Fifth Engineering Bureau Co Ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-01-05
Anticipated expiration: 2040-08-25
Also published as: CN112173955B

Abstract

The invention belongs to the technical field of tower crane equipment, in particular to a tower crane lifting anti-drop mechanism, which aims at the problems that the material is easy to drop off due to the shaking generated in the transportation process in the prior art, so that the material is damaged, the resource is wasted, the cost is increased, and people are easy to hurt, the invention provides a scheme which comprises a hook, wherein the bottom of the hook is penetrated and slidably connected with a movable rod, the top end of the movable rod extends to the upper part of the hook and is fixedly connected with an arc-shaped movable block, the bottom radian of the arc-shaped movable block is matched with the top radian of the hook, the top of the arc-shaped movable block is a plane and is provided with an arc-shaped groove, the inner wall of the bottom of the arc-shaped groove is provided with a hanging rope placing groove, the structure is simple, the hanging rope is not required to be bound or unbound manually, the automatic clamping and loosening of the hanging rope, greatly improves the safety and the practicability and is beneficial to popularization and use.

Description

Anti-hook-off mechanism for hoisting tower crane

Technical Field

The invention relates to the technical field of tower crane equipment, in particular to a hook-preventing mechanism for lifting a tower crane.

Background

The tower crane is the most common hoisting equipment on the construction site, also called tower crane, and is used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction by using the extension (height) of one section by one section (called standard section for short) so as to reduce labor force and construction cost, so that the tower crane is an essential equipment on the construction site, and the hook is an important part of the tower crane acting on a suspension material.

Traditional tower crane couple simple structure does not have any protection machanism except suspension material, in the transportation of material because the rocking of production leads to droing of material easily, not only causes the material to damage, and the resource-wasting increases the cost, appears pounding the condition of hindering the people easily moreover, and factor of safety is low, therefore we have proposed a tower crane lifts by crane anticreep and colludes mechanism for solve the above-mentioned problem that proposes.

Disclosure of Invention

The invention aims to solve the defects that in the prior art, the material is easy to fall off due to shaking generated in the transportation process, so that the material is damaged, the resource is wasted, the cost is increased, the condition of hurting people is easy to occur, and the safety coefficient is low.

In order to achieve the purpose, the invention adopts the following technical scheme:

a tower crane hoisting anti-unhooking mechanism comprises a hook, wherein the bottom of the hook is connected with a movable rod in a penetrating and sliding manner, the top end of the movable rod extends to the upper part of the hook and is fixedly connected with an arc movable block, the bottom radian of the arc movable block is matched with the top radian of the hook, the top of the arc movable block is a plane and is provided with an arc-shaped groove, the inner wall of the bottom of the arc-shaped groove is provided with a hanging rope placing groove, one side of the top of the arc movable block is provided with a mounting groove, the inside of the mounting groove is rotatably connected with a rotating shaft, the rotating shaft is symmetrically and fixedly sleeved with two limiting rods, the other side of the top of the arc movable block is symmetrically provided with two limiting grooves, the mounting groove and the two limiting grooves are respectively positioned at two sides of the arc-shaped groove and are communicated with the inside, the two fixed blocks are respectively provided with the same connecting structure, one side of each fixed block, which is far away from the hook, is provided with an arc-shaped opening, the inner wall of one side of each arc-shaped opening, which is far away from each other, is symmetrically penetrated and slidably connected with two clamping rods, the ends, which are close to each other, of the two clamping rods are fixedly connected with arc-shaped clamping blocks, the sides, which are far away from each other, of the two arc-shaped clamping blocks are respectively attached to the inner walls of the two sides of the arc-shaped opening, the bottom of one side, which is far away from each other, of each fixed block is symmetrically and fixedly connected with two fixed sliding sleeves, sliding rods are respectively penetrated and slidably connected in the two fixed sliding sleeves, the two ends of the two sliding rods extend to the outer sides of the corresponding fixed sliding sleeves, the ends, which are far away from each other, of the two clamping, the same hanging rope is movably placed in the hanging rope placing groove and the two arc-shaped openings.

Preferably, the bottom inner wall of mounting groove runs through there is the transfer line, the bottom of transfer line extend to the below of arc movable block and with top one side fixed connection of couple, one side top of transfer line is equipped with the tooth's socket, one side fixed cover of pivot is equipped with the half-gear that is located between two gag lever posts, and the half-gear meshes with the tooth's socket mutually, when the arc movable block reciprocated and drive the half-gear and reciprocate, can drive the pivot through the meshing motion with the tooth's socket and rotate.

Preferably, one side that the transfer line was kept away from to the bottom of arc movable block is equipped with the spout, and sliding connection has the bracing piece in the spout, and the bottom of bracing piece extend to the below of arc movable block and with top one side fixed connection of couple, can play the effect of stabilizing the support to the arc movable block through the bracing piece.

Preferably, one side bottom symmetry that the fixed block kept away from each other runs through sliding connection has two telescopic links, and the one end that two telescopic links kept away from each other all extends to the outside of fixed block, and just two telescopic links are located two clamp rod respectively under, and one side of two telescopic links is rotated with one side that corresponds the slide bar respectively and is connected with same second connecting rod, when the slide bar removes, can drive the telescopic link through the second connecting rod and carry out the concertina movement.

Preferably, the fixed block is two dead levers of the symmetrical fixedly connected with in one side that keeps away from each other, and two dead levers are located the positive centre that corresponds clamping bar and telescopic link respectively, and one side of two dead levers all rotates and is connected with the third connecting rod, and the both ends of two third connecting rods rotate with one side that corresponds clamping bar and telescopic link respectively and be connected, when the telescopic link removed, can drive clamping bar through the third connecting rod and do the reverse translation.

Preferably, two the cover all runs through to one side of slide bar and is equipped with reset spring, and two reset spring's both ends are equallyd divide and are do not contacted with one side that corresponds fixed sliding sleeve and moving plate and be close to each other, can play the effect that resets to the moving plate through reset spring, reset the slide bar simultaneously.

Preferably, two one side fixedly connected with same anti-skidding rubber piece that the gag lever post is close to the arc wall, when the gag lever post plays closed spacing effect to hanging the rope, can further play the spacing effect of extrusion to hanging the rope through anti-skidding rubber piece.

Preferably, hang the bottom inner wall of rope standing groove and be equipped with a plurality of non-slip raised, can play skid-proof effect to hanging the rope through non-slip raised, and then improve the stability of joint.

According to the tower crane lifting anti-unhooking mechanism, the hanging rope can drive the arc-shaped movable block to move downwards under the action of the self gravity of the lifted material, the rotating shaft can be driven to rotate clockwise, the limiting rod is driven to rotate clockwise, when the arc-shaped movable block moves to be attached to the hook, the limiting rod just rotates to the limiting groove, the automatic closing limiting effect of the hanging rope is achieved, the hanging rope can be stably clamped through the matching of the anti-skid rubber block and the anti-skid protrusions, and the hanging rope is prevented from sliding;

can also drive the movable rod downstream when the arc movable block moves down, can drive the movable plate through first connecting rod and be close to the fixed block and remove, drive the slide bar simultaneously and remove, can drive the telescopic link through the second connecting rod simultaneously and outwards remove, and then can make the clamping bar inwards remove through the third connecting rod, with this drive the arc clamp splice remove and to hanging the tight effect of rope realization clamp, thereby further play the tight effect of stable clamp to hanging the rope, whole fixed process need not staff and tightly fixes and loosen hanging the rope by hand, only need can realize through the self gravity of material hanging the time-out to hanging the spacing effect of self-holding of rope, and the anticreep is effectual, security and practicality have been improved greatly.

According to the anti-falling device, the gravity borne by the hanging rope drives the arc-shaped movable block to move downwards, the limiting rod can be driven to rotate and play a role in closing and limiting the hanging rope, the clamping stability of the hanging rope can be improved through the matching of the anti-sliding rubber block and the anti-sliding protrusions, the sliding of the hanging rope is prevented, meanwhile, the arc-shaped clamping block can be driven to clamp the hanging rope through the downward movement of the movable rod, the stability of the hanging rope is further improved, the anti-falling effect is effectively played, the structure is simple, the hanging rope does not need to be bound or released manually, the hanging rope can be automatically clamped and loosened only through the change of the gravity, the anti-falling effect is good, the safety and the practicability are greatly improved, and the anti-falling.

Drawings

FIG. 1 is a schematic view of the overall structure of a tower crane hoisting hook-prevention mechanism provided by the invention;

FIG. 2 is a sectional view of an integral connecting structure of an arc-shaped movable block of the anti-tripping mechanism for hoisting a tower crane, which is provided by the invention;

FIG. 3 is a top view of the overall structure of a tower crane hoisting hook-off prevention mechanism composition 1 provided by the invention;

FIG. 4 is a schematic structural diagram of a tower crane hoisting hook-off prevention mechanism diagram 3 with a hook removed;

FIG. 5 is a partial structural side view of a tower crane hoisting hook-prevention mechanism diagram 1 provided by the invention;

FIG. 6 is a schematic view of the whole structure of the rope clamping of the anti-unhooking mechanism for hoisting a tower crane provided by the invention;

FIG. 7 is a top view of the overall structure of a tower crane hoisting hook-off prevention mechanism diagram 6 according to the present invention;

in the figure: 1. hooking; 2. a movable rod; 3. an arc-shaped movable block; 4. an arc-shaped slot; 5. a hanging rope placing groove; 6. mounting grooves; 7. a limiting groove; 8. a rotating shaft; 9. a limiting rod; 11. a transmission rod; 12. a tooth socket; 13. a half gear; 14. a chute; 15. a support bar; 16. a fixed block; 17. an arc-shaped opening; 18. a clamping lever; 19. an arc-shaped clamping block; 20. fixing the sliding sleeve; 21. a slide bar; 22. moving the plate; 23. a first link; 24. a telescopic rod; 25. a second link; 26. fixing the rod; 27. a third link; 28. a return spring; 29. an anti-slip rubber block; 30. anti-skid projections; 31. and (7) hanging a rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

Referring to fig. 1-7, a tower crane hoisting anti-unhooking mechanism comprises a hook 1, the bottom of the hook 1 is connected with a movable rod 2 in a penetrating and sliding manner, the top end of the movable rod 2 extends to the upper part of the hook 1 and is fixedly connected with an arc-shaped movable block 3, the bottom radian of the arc-shaped movable block 3 is matched with the top radian of the hook 1, the top of the arc-shaped movable block 3 is a plane and is provided with an arc-shaped groove 4, the inner wall of the bottom of the arc-shaped groove 4 is provided with a hanging rope placing groove 5, one side of the top of the arc-shaped movable block 3 is provided with a mounting groove 6, the inside of the mounting groove 6 is rotatably connected with a rotating shaft 8, the rotating shaft 8 is symmetrically and fixedly sleeved with two limiting rods 9, the other side of the top of the arc-shaped movable block 3 is symmetrically provided with two limiting grooves 7, the mounting groove 6 and the two, two fixing blocks 16 are symmetrically and fixedly connected to one side, far away from each other, of the hook 1, the same connecting structure is arranged on each of the two fixing blocks 16, an arc opening 17 is arranged on one side, far away from the hook 1, of each fixing block 16, two clamping rods 18 are symmetrically, penetratingly and slidably connected to the inner wall of one side, far away from each other, of each arc opening 17, arc clamping blocks 19 are fixedly connected to the ends, near to each other, of the two clamping rods 18, the sides, far away from each other, of the two arc clamping blocks 19 are respectively attached to the inner walls of the two sides of the arc opening 17, two fixing sliding sleeves 20 are symmetrically and fixedly connected to the bottoms of one sides, far away from each other, of the fixing blocks 16, sliding rods 21 are slidably connected to the inside of the two fixing sliding sleeves 20 in a penetrating manner, the two ends of the two sliding rods 21 are, the other ends of the two slide bars 21 are fixedly connected with the same movable plate 22, one side of the movable rod 2 extends to the lower part of the hook 1 and is rotatably connected with the same first connecting rod 23 with one side of the movable plate 22 far away from the fixed block 16, and the same hanging rope 31 is movably arranged in the hanging rope placing groove 5 and the two arc-shaped openings 17.

Example two

The improvement is further based on the first embodiment: a transmission rod 11 penetrates through the inner wall of the bottom of the mounting groove 6, the bottom end of the transmission rod 11 extends to the lower part of the arc-shaped movable block 3 and is fixedly connected with one side of the top of the hook 1, a tooth groove 12 is arranged at the top of one side of the transmission rod 11, a half gear 13 positioned between two limiting rods 9 is fixedly sleeved on one side of the rotating shaft 8, the half gear 13 is meshed with the tooth groove 12, when the arc-shaped movable block 3 moves up and down and drives the half gear 13 to move up and down, the rotating shaft 8 can be driven to rotate through the meshing motion with the tooth groove 12, a sliding groove 14 is arranged at one side, far away from the transmission rod 11, of the bottom of the arc-shaped movable block 3, a supporting rod 15 is connected in the sliding groove 14 in a sliding manner, the bottom end of the supporting rod 15 extends to the lower part of the arc-shaped movable block 3 and is fixedly connected with one side of the top of the, the end of each of the two telescopic rods 24 far away from each other extends to the outside of the fixed block 16, the two telescopic rods 24 are respectively located under the two clamping rods 18, one side of each of the two telescopic rods 24 is respectively and rotatably connected with one side of the corresponding sliding rod 21 to form the same second connecting rod 25, when the sliding rod 21 moves, the telescopic rods 24 can be driven to move in a telescopic manner through the second connecting rod 25, the side of each of the fixed blocks 16 far away from each other is symmetrically and fixedly connected with two fixed rods 26, the two fixed rods 26 are respectively located between the corresponding clamping rods 18 and the corresponding telescopic rods 24, one side of each of the two fixed rods 26 is rotatably connected with a third connecting rod 27, two ends of each of the two third connecting rods 27 are respectively and rotatably connected with one side of each of the corresponding clamping rods 18 and the corresponding telescopic rods 24, when the telescopic rods 24 move, the clamping rods 18 can be driven to move in, two reset spring 28's both ends are equallyd divide do not and are corresponded fixed sliding sleeve 20 and the mutual one side that is close to of movable plate 22 and contact, can play the effect that resets to movable plate 22 through reset spring 28, reset slide bar 21 simultaneously, two gag lever posts 9 are close to the same anti-skidding rubber piece 29 of one side fixedly connected with of arc wall 4, when gag lever post 9 plays closed spacing effect to hanging rope 31, can further play the spacing effect of extrusion to hanging rope 31 through anti-skidding rubber piece 29, the bottom inner wall of hanging rope standing groove 5 is equipped with a plurality of non-slip raised 30, can play skid-proof effect to hanging the rope through non-slip raised 30, and then improve the stability of joint.

The working principle is as follows: firstly, the hanging rope 31 is sleeved in the hanging rope placing groove 5, then two sides of the hanging rope 31 are respectively clamped in the arc-shaped opening 17, at the moment, the tower crane starts to work and drives the hook 1 to rise upwards, the hanging rope 31 can drive the arc-shaped movable block 3 to move downwards under the action of gravity after the material is lifted, the half gear 13 is meshed with the tooth socket 12, so that the half gear 13 can drive the rotating shaft 8 to rotate clockwise when moving downwards, and simultaneously drive the limiting rod 9 to rotate clockwise, when the arc-shaped movable block 3 moves to be attached to the hook 1, the limiting rod 9 just rotates 90 degrees to the limiting groove 7, so that the automatic closing limiting effect of the hanging rope 31 is realized, the hanging rope 31 can be stably clamped, the hanging rope 31 is prevented from sliding, and the arc-shaped movable block 3 can be stably supported and slid through the transmission rod 11 and the support rod 15, when the arc-shaped movable block 3 moves downwards, the movable rod 2 can be driven to move downwards, the movable plate 22 can be driven to move close to the fixed block 16 through the first connecting rod 23, the slide rod 21 is driven to move, the reset spring 28 is in a compressed state, the telescopic rod 24 can be driven to move outwards through the second connecting rod 25, and the clamping rod 18 can be further driven to move inwards through the third connecting rod 27, as shown in figures 6 and 7, so that the arc-shaped clamping block 19 is driven to move and the hanging rope 31 is clamped, the hanging rope 31 is further stably clamped, the whole fixing process does not need to be manually clamped, fixed and loosened by workers, the automatic clamping and limiting effect on the hanging rope 31 during hoisting can be realized only through the self gravity of the material, the anti-dropping effect is good, the safety and the practicability are greatly improved, when the material is put down, under the condition that the hanging rope 31 is not pulled by gravity, the effect of automatically loosening the hanging rope 31 can be realized through the return spring 28, and the use is convenient.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a tower crane lifts by crane anticreep and colludes mechanism, including couple (1), a serial communication port, there is movable rod (2) bottom run through sliding connection of couple (1), the top of movable rod (2) extends to the top of couple (1) and fixedly connected with arc movable block (3), and the bottom radian of arc movable block (3) and the top radian looks adaptation of couple (1), the top of arc movable block (3) is the plane and is equipped with arc wall (4), the bottom inner wall of arc wall (4) is equipped with hangs rope standing groove (5), top one side of arc movable block (3) is equipped with mounting groove (6), the inside of mounting groove (6) is rotated and is connected with pivot (8), the fixed cover of symmetry is equipped with two gag lever posts (9) on pivot (8), the top opposite side symmetry of arc movable block (3) is equipped with two spacing grooves (7), mounting groove (6) and two spacing grooves (7) are located the both sides of arc wall (4) respectively and all with arc wall (4), mounting ) The two limiting rods (9) are respectively matched with the two limiting grooves (7);

the hook is characterized in that two fixed blocks (16) are symmetrically and fixedly connected to one side, away from each other, of the hook (1), the two fixed blocks (16) are respectively provided with the same connecting structure, one side, away from the hook (1), of each fixed block (16) is provided with an arc opening (17), one side, away from each other, of each arc opening (17) is symmetrically, penetratingly and slidably connected with two clamping rods (18), one ends, close to each other, of the two clamping rods (18) are respectively and fixedly connected with arc clamping blocks (19), one sides, away from each other, of the two arc clamping blocks (19) are respectively attached to the inner walls on the two sides of the arc opening (17), the bottom of one side, away from each other, of the fixed blocks (16) is symmetrically and fixedly connected with two fixed sliding sleeves (20), sliding rods (21) are respectively and penetratingly and slidably connected in the, the one end that two clamp rod (18) kept away from each other all extends to the outside of fixed block (16) and is connected with the one end transmission of two slide bars (21) respectively, the same movable plate (22) of the other end fixedly connected with of two slide bars (21), and one side of movable rod (2) extends to the below of couple (1) and rotates with one side that fixed block (16) was kept away from to movable plate (22) and is connected with same first connecting rod (23), hang rope standing groove (5) and two arc opening (17) internalization and place same string rope (31).

2. The tower crane hoisting anti-tripping mechanism according to claim 1, wherein a transmission rod (11) penetrates through the inner wall of the bottom of the mounting groove (6), the bottom end of the transmission rod (11) extends to the lower portion of the arc-shaped movable block (3) and is fixedly connected with one side of the top of the hook (1), a tooth groove (12) is formed in the top of one side of the transmission rod (11), a half gear (13) located between the two limiting rods (9) is fixedly sleeved on one side of the rotating shaft (8), and the half gear (13) is meshed with the tooth groove (12).

3. The tower crane hoisting anti-unhooking mechanism according to claim 1, wherein a sliding groove (14) is formed in one side, away from the transmission rod (11), of the bottom of the arc-shaped movable block (3), a supporting rod (15) is connected in the sliding groove (14), and the bottom end of the supporting rod (15) extends to the lower portion of the arc-shaped movable block (3) and is fixedly connected with one side of the top of the hook (1).

4. The tower crane hoisting anti-tripping mechanism according to claim 1, wherein the bottom of one side of the fixed block (16) away from each other is symmetrically connected with two telescopic rods (24) in a penetrating and sliding manner, one ends of the two telescopic rods (24) away from each other extend to the outer side of the fixed block (16), the two telescopic rods (24) are respectively located under the two clamping rods (18), and one side of each of the two telescopic rods (24) is respectively connected with one side of the corresponding sliding rod (21) in a rotating manner through one second connecting rod (25).

5. The tower crane hoisting anti-unhooking mechanism according to claim 1, wherein two fixing rods (26) are symmetrically and fixedly connected to one side of the fixing block (16) away from each other, the two fixing rods (26) are respectively located at the middle of the corresponding clamping rod (18) and the telescopic rod (24), a third connecting rod (27) is rotatably connected to one side of each of the two fixing rods (26), and two ends of each of the two third connecting rods (27) are rotatably connected to one side of the corresponding clamping rod (18) and one side of the corresponding telescopic rod (24).

6. The tower crane hoisting anti-unhooking mechanism according to claim 1, wherein one side of each of the two sliding rods (21) is sleeved with a return spring (28) in a penetrating manner, and two ends of each of the two return springs (28) are respectively in contact with one side, close to each other, of the corresponding fixed sliding sleeve (20) and the corresponding movable plate (22).

7. The tower crane hoisting anti-tripping mechanism according to claim 1, wherein one side of each of the two limiting rods (9) close to the arc-shaped groove (4) is fixedly connected with the same anti-skid rubber block (29).

8. The tower crane hoisting anti-unhooking mechanism according to claim 1, wherein a plurality of anti-skid protrusions (30) are arranged on the inner wall of the bottom of the hanging rope placing groove (5).