CN212559231U

CN212559231U - Grabbing mechanism of crane

Info

Publication number: CN212559231U
Application number: CN202021374740.9U
Authority: CN
Inventors: 马聪
Original assignee: Zhejiang Institute of Special Equipment Science
Current assignee: Zhejiang Institute of Special Equipment Science
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-02-19
Anticipated expiration: 2030-07-14

Abstract

The utility model discloses a hoist snatch mechanism, include: the small crane comprises a main suspension arm and a base, wherein a locking mechanism is arranged between the main suspension arm and the base and comprises a ratchet wheel and a pawl, the bottom of the main suspension arm is movably inserted into the locking mechanism, the bottom of the main suspension arm is clamped with the ratchet wheel, and the pawl is enabled to keep rotating at an angle by applying acting force to the pawl so as to enable the ratchet wheel to keep fixed. The utility model provides a hoist snatch mechanism, control the rotation of main davit through locking mechanism, when the small crane lifts by crane the heavy object, can prevent that main davit from taking place to rotate when lifting by crane, cause material damage and casualties, the on-the-spot personal safety of building site has been protected, enough stable fixed support post and tubular product, the workman of being convenient for carries out the fixed of support post and tubular product fast, can prevent simultaneously that support post and tubular product from dropping when lifting by crane, can be under construction at night, perhaps provide the light illumination when the illumination is not enough cloudy.

Description

Grabbing mechanism of crane

Technical Field

The utility model relates to a hoist technical field relates to a mechanism that snatchs of hoist particularly.

Background

The crane is a multi-action small crane for vertically lifting and horizontally transporting heavy objects within a certain range, and when a house is built in a rural area, the small crane is needed to vertically transport building materials, so that manpower is saved.

The existing small crane is simple in structure, when lifting heavy objects, the main suspension arm can rotate to one side, the heavy objects lifted by the crane can be smashed to one side, the damage to the materials and the casualties are caused, meanwhile, when the house is built in the rural area, some supporting columns and some pipes need to be lifted, the grabbing mechanism of the existing small crane can not well fix the cylindrical materials, the grabbing mechanism of the existing crane needs to be specially fixed when lifting the cylindrical materials, the workload of workers is increased, the grabbing mechanism of the existing crane can rotate to one side, the heavy objects lifted by the crane can be smashed to one side, the damage to the materials and the casualties can not be well fixed to the cylindrical materials, the grabbing mechanism of the existing crane needs to be specially fixed when lifting the heavy objects, and the workload of the workers is increased.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned problem that prior art exists, an aspect aim at provides a mechanism that snatchs of hoist, when the mechanism that snatchs that aims at solving current hoist exists the lift by crane the heavy object, main davit can rotate to one side, and the heavy object that leads to lifting by crane pounces to one side, causes the material to damage and casualties and can not carry out fine fixing to cylindrical material, need carry out special fixed when lifting by crane, increases the problem of workman's work load.

Technical scheme

In order to achieve the above object, the utility model provides a pair of grabbing mechanism of hoist, include: the small crane comprises a main suspension arm and a base, wherein a locking mechanism is arranged between the main suspension arm and the base and comprises a ratchet wheel and a pawl, the bottom of the main suspension arm is movably inserted into the locking mechanism, the bottom of the main suspension arm is clamped with the ratchet wheel, and acting force is applied to the pawl to enable the pawl to keep rotating at an angle so as to enable the ratchet wheel to keep fixed.

Preferably, the clamping device further comprises a clamping mechanism, wherein the clamping mechanism comprises a rotating button, a left clamping plate and a right clamping plate, and the left clamping plate and the right clamping plate are kept to move back and forth or move towards each other by applying rotating acting force to the rotating button.

As preferred, clamping mechanism still includes shell, left pinion rack, right pinion rack, peg graft pole and column gear, the one end of knob is run through and is extended to inside the shell, column gear fixed mounting in the knob is located one end in the shell, peg graft pole activity peg graft in the knob, just the one end of peg graft pole is located between the tooth mouth of column gear, left pinion rack fixed mounting in the outer wall of left splint one side, right pinion rack fixed mounting in the outer wall of right splint one side, left pinion rack and the equal sliding connection of right pinion rack are in the shell, left pinion rack and right pinion rack all mesh with the column gear mutually.

Preferably, the locking mechanism further comprises a protective shell, a connecting block and a rotating button, the ratchet wheel is hinged to a middle shaft on the bottom surface inside the protective shell, the pawl is hinged to the bottom surface inside the protective shell, the connecting block is hinged to the outer wall of the pawl, the rotating button is connected to the outer wall of the protective shell in a shaft mode, a threaded rod is fixedly installed on the outer wall of the connecting block, and the threaded rod is connected to the inside of the rotating button in a threaded mode.

Preferably, an illuminating lamp is fixedly mounted on the outer wall of one side of the main suspension arm.

Preferably, the protective shell is made of iron-carbon alloy in a whole body.

Advantageous effects

Compared with the prior art, the utility model provides a pair of mechanism that snatchs of hoist possesses following beneficial effect:

1. the utility model discloses a, control the rotation of main davit through locking mechanism, when the small crane lifts by crane the heavy object, can prevent that main davit from taking place to rotate when lifting by crane, cause material damage and casualties, protected the on-the-spot personal safety of building site.

2. The utility model discloses a, fix columniform support column and tubular product through clamping mechanism, can stabilize fixed support column and tubular product, the workman of being convenient for carries out the fixed of support column and tubular product fast, can prevent that support column and tubular product from dropping when lifting by crane simultaneously.

3. The utility model discloses a, the lighting lamp can be under construction at night, provides the light illumination when perhaps not enough cloudy day of illumination.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic structural view of the locking mechanism of the present invention;

fig. 3 is a schematic view of the internal structure of the locking mechanism of the present invention;

fig. 4 is a schematic structural view of the clamping mechanism of the present invention;

fig. 5 is a schematic view of the internal structure of the clamping mechanism of the present invention.

The main reference numbers:

1. a small-sized crane; 2. a main boom; 3. a base; 4. a locking mechanism; 5. a ratchet wheel; 6. a pawl; 7. a clamping mechanism; 8. a rotation knob; 9. a left splint; 10. a right splint; 11. a housing; 12. a left toothed plate; 13. a right toothed plate; 14. a plug rod; 15. a column gear; 16. a protective shell; 17. connecting blocks; 18. a knob is rotated; 19. a threaded rod; 20. an illuminating lamp.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.

Referring to fig. 1-5, a grabbing mechanism of a crane, includes: the small crane 1 comprises a main boom 2 and a base 3, a locking mechanism 4 is arranged between the main boom 2 and the base 3, the locking mechanism 4 comprises a ratchet wheel 5 and a pawl 6, the bottom of the main boom 2 is movably inserted into the locking mechanism 4, the bottom of the main boom 2 is clamped with the ratchet wheel 5, and the pawl 6 keeps rotating at an angle by applying acting force to the pawl 6, so that the ratchet wheel 5 keeps fixed. The rotation of the main suspension arm 2 is controlled through the locking mechanism 4, when the small crane 1 lifts a heavy object, the main suspension arm 2 can be prevented from rotating when lifting, material damage and casualties are caused, and the personnel safety of a construction site is protected.

As shown in fig. 1-5, the present invention further provides a clamping mechanism 7, wherein the clamping mechanism 7 includes a rotary knob 8, a left clamp plate 9 and a right clamp plate 10, and the rotary knob 8 is used to apply a rotary force to the left clamp plate 9 and the right clamp plate 10 to keep moving back and forth or moving toward each other. Clamping mechanism 7 keeps being connected with main davit 2 through the couple of miniature crane 1, fixes columniform support column and tubular product through clamping mechanism 7, can stabilize fixed support column and tubular product, and the workman of being convenient for carries out the fixed of support column and tubular product fast, can prevent that support column and tubular product from dropping when lifting by crane simultaneously.

As shown in fig. 1-5, the utility model discloses in the technical scheme that further proposes, clamping mechanism 7 still includes shell 11, left pinion rack 12, right pinion rack 13, peg graft 14 and column gear 15, the one end of knob 8 is run through and is extended to inside shell 11, column gear 15 fixed mounting is in the one end that knob 8 is located shell 11, peg graft 14 activity is pegged graft in knob 8, and the one end of peg graft 14 is located between the tooth mouth of column gear 15, left pinion rack 12 fixed mounting is in the outer wall of left splint 9 one side, right pinion rack 13 fixed mounting is in the outer wall of right splint 10 one side, left pinion rack 12 and the equal sliding connection of right pinion rack 13 are in shell 11, left pinion rack 12 and right pinion rack 13 all mesh with column gear 15. The bayonet pole 14 is used for keeping fixed the column gear 15, when using, extract bayonet pole 14 from knob 8, make bayonet pole 14's one end, rotate knob 8 again, make the synchronous rotation of column gear 15 in the time of knob 8 pivoted, when the rotation of column gear 15, make left toothed plate 12 and right toothed plate 13 remove, make left splint 9 and right splint 10 keep moving, with tubular product and the support column of different diameters of cooperation, reverse rotation knob 8 again, make left splint 9 and right splint 10 press from both sides tubular product or support column tightly, insert bayonet pole 14 back into knob 8 at last.

As shown in fig. 1-5, the utility model discloses among the further technical scheme that provides, locking mechanism 4 still includes protective housing 16, connecting block 17 and rotates button 18, and ratchet 5 articulates in the axis department of the inside bottom surface of protective housing 16, and pawl 6 articulates in the inside bottom surface of protective housing 16, and connecting block 17 articulates in the outer wall of pawl 6, rotates button 18 hub connection in the outer wall of protective housing 16, and connecting block 17's outer wall fixed mounting has threaded rod 19, and threaded rod 19 threaded connection is in rotating button 18. The protective shell 16 is made of iron-carbon alloy. The bottom of the main boom 2 is inserted into the protective shell 16, the bottom of the main boom 2 is fixedly installed in the ratchet wheel 5, when the lifting device is used, the rotating button 18 is rotated, when the rotating button 18 rotates, the threaded rod 19 moves along the inside of the rotating button 18 and pulls the connecting block 17 to move, the connecting block 17 moves and pulls the pawl 6 to rotate, the pawl 6 is made to contact with the ratchet wheel 5, the ratchet wheel 5 is kept fixed, and the main boom 2 is prevented from rotating in the lifting process.

As shown in fig. 1-5, the present invention further provides a technical solution, wherein a lighting lamp 20 is fixedly installed on the outer wall of one side of the main boom 2. The illumination lamp 20 can provide light illumination during night construction or during overcast days when illumination is insufficient.

The working principle is as follows:

the first step is as follows: when the lifting device is used, before a heavy object is lifted, the rotating button 18 is rotated, when the rotating button 18 is rotated, the threaded rod 19 moves along the inside of the rotating button 18 and pulls the connecting block 17 to move, the connecting block 17 moves and pulls the pawl 6 to rotate, so that the pawl 6 is contacted with the ratchet wheel 5, the ratchet wheel 5 is kept fixed, and the main boom 2 is prevented from rotating in the lifting process.

The second step is that: when the main boom 2 needs to be rotated, the rotating button 18 is rotated, when the rotating button 18 is rotated, the threaded rod 19 moves along the inside of the rotating button 18 and pulls the connecting block 17 to move, the connecting block 17 pulls the pawl 6 to rotate while moving, so that the pawl 6 is separated from the ratchet wheel 5, and the main boom 2 can be rotated.

The third step: when the pipe and the support pillar are hoisted, the pipe and the support pillar are firstly bound.

The fourth step: extract peg graft pole 14 from knob 8, make the one end of peg graft pole 14, rotate knob 8 again, make post gear 15 synchronous rotation in the knob 8 pivoted, when post gear 15 pivoted, make left toothed plate 12 and right toothed plate 13 remove, make left splint 9 and right splint 10 keep moving, with tubular product and the support column of cooperation different diameters, reverse rotation knob 8 again, make left splint 9 and right splint 10 press from both sides tubular product or support column clamp tightly, insert peg graft pole 14 back in knob 8 at last.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

It will be appreciated by those skilled in the art that other similar connections may be used to implement the present invention. Such as welding, bonding, or screwing.

The above embodiments are merely exemplary embodiments of the present invention, which is not intended to limit the present invention, and the scope of the present invention is defined by the appended claims. Various modifications and equivalents may be made by those skilled in the art to the present invention without departing from the spirit and scope of the invention, and such modifications and equivalents should be considered to be within the scope of the invention.

Claims

1. A grabbing mechanism of a crane, comprising: the small crane (1) comprises a main boom (2) and a base (3), and is characterized in that a locking mechanism (4) is arranged between the main boom (2) and the base (3), the locking mechanism (4) comprises a ratchet wheel (5) and a pawl (6), the bottom of the main boom (2) is movably inserted into the locking mechanism (4), the bottom of the main boom (2) is clamped with the ratchet wheel (5), and the pawl (6) is enabled to keep angular rotation by exerting acting force on the pawl (6) so as to enable the ratchet wheel (5) to keep fixed.

2. The grabbing mechanism of a crane according to claim 1, further comprising a clamping mechanism (7), wherein said clamping mechanism (7) comprises a rotating knob (8), a left clamping plate (9) and a right clamping plate (10), and said rotating knob (8) is applied with a rotating force to keep said left clamping plate (9) and said right clamping plate (10) moving back and forth.

3. The grabbing mechanism of a crane according to claim 2, wherein the clamping mechanism (7) further comprises a housing (11), a left toothed plate (12), a right toothed plate (13), an inserting rod (14) and a column gear (15), one end of the rotating button (8) penetrates and extends to the inside of the housing (11), the column gear (15) is fixedly installed at one end of the rotating button (8) located in the housing (11), the inserting rod (14) is movably inserted in the rotating button (8), one end of the inserting rod (14) is located between the tooth mouths of the column gear (15), the left toothed plate (12) is fixedly installed on the outer wall of one side of the left clamping plate (9), the right toothed plate (13) is fixedly installed on the outer wall of one side of the right clamping plate (10), and both the left toothed plate (12) and the right toothed plate (13) are slidably connected in the housing (11), the left toothed plate (12) and the right toothed plate (13) are both meshed with a cylindrical gear (15).

4. The grabbing mechanism of a crane according to claim 1, wherein the locking mechanism (4) further comprises a protective shell (16), a connecting block (17) and a rotating button (18), the ratchet wheel (5) is hinged to a central axis of the bottom surface inside the protective shell (16), the pawl (6) is hinged to the bottom surface inside the protective shell (16), the connecting block (17) is hinged to the outer wall of the pawl (6), the rotating button (18) is connected to the outer wall of the protective shell (16) in a shaft mode, a threaded rod (19) is fixedly installed on the outer wall of the connecting block (17), and the threaded rod (19) is connected to the rotating button (18) in a threaded mode.

5. The grabbing mechanism of a crane according to claim 1, wherein an illuminating lamp (20) is fixedly installed on the outer wall of one side of the main boom (2).

6. A gripping mechanism of a crane according to claim 4, characterized in that the protective casing (16) is made of iron carbon alloy in one piece.