CN217051395U

CN217051395U - Lifting device capable of adjusting ground grabbing force

Info

Publication number: CN217051395U
Application number: CN202220817530.5U
Authority: CN
Inventors: 龙瑞庚; 易建; 陈利
Original assignee: Zhejiang Shunlong Steel Structure Group Co ltd
Current assignee: Zhejiang Shunlong Steel Structure Group Co ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-07-26
Anticipated expiration: 2032-04-08

Abstract

The utility model relates to a lifting device capable of adjusting the magnitude of the ground grabbing force, which comprises a lifting mechanism and a base, wherein the lifting mechanism is arranged on the base, the bottom of the base is also provided with an adjusting cavity which is vertically arranged, a containing cavity is arranged in the base, the adjusting cavity is communicated with the containing cavity, the intersection of the adjusting cavity and the containing cavity is taken as an adjusting point, an adjusting driver is arranged in the containing cavity, the adjusting driver is provided with a moving block, the moving block is provided with a moving inclined plane which gradually reduces the cross-sectional area along the direction of the moving block away from the adjusting driver, an adjusting block which moves vertically is arranged in the adjusting cavity, the adjusting block is provided with an adjusting inclined plane which is matched with the shape of the moving inclined plane, a reset spring for resetting the adjusting inclined plane to the adjusting point is arranged between the adjusting block and the bottom of the adjusting cavity, the adjusting block is provided with an adjusting rod which extends out of the adjusting cavity and synchronously moves with the adjusting rod, one side of the adjusting rod, which is relatively far away from the adjusting block, is provided with a friction block. The utility model provides a can adjust hoisting accessory of grabbing ground power size.

Description

Lifting device capable of adjusting ground grabbing force

Technical Field

The utility model relates to a hoisting accessory, concretely relates to can adjust hoisting accessory of grabbing ground power size.

Background

At present, tower crane is generally used in domestic large-scale buildings, but generally use simple hoisting accessory of constituteing such as motor, pulley in rural building, this kind of device is comparatively simple, can't adapt to the comparatively complicated building site of road conditions, especially under the circumstances of road surface unevenness, leads to hoisting accessory to the not enough ground gripping ability on ground, leads to hoisting accessory's slip, appears dangerous condition easily.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a can adjust hoisting accessory who grabs land fertility size.

In order to achieve the above purpose, the utility model provides a following technical scheme: the lifting mechanism is arranged on the base, a wheel assembly used for moving is arranged at the bottom of the base, an adjusting cavity which is vertically arranged is further arranged at the bottom of the base, a containing cavity is arranged in the base, the adjusting cavity is communicated with the containing cavity, the intersection of the adjusting cavity and the containing cavity serves as an adjusting point, an adjusting driver is arranged in the containing cavity, the adjusting driver drives a moving block, the moving track of the moving block passes through the adjusting point, a moving inclined surface with the cross sectional area gradually reduced along the direction of the moving block away from the adjusting driver is arranged on one side, away from the adjusting driver, of the moving block, an adjusting block which vertically moves is arranged in the adjusting cavity, the adjusting block is provided with an adjusting inclined surface matched with the moving inclined surface in shape, a reset spring used for resetting the adjusting inclined surface to the adjusting point is arranged between the adjusting block and the bottom of the adjusting cavity, the adjusting block is provided with an adjusting rod which extends out of the adjusting cavity, and the adjusting block and synchronously moves with the adjusting rod, the adjusting rod is provided with a friction block on one side far away from the adjusting block relatively, the moving block enables the friction block to have a propping state and a separating state, the propping state is that the moving block moves to an adjusting point, the moving inclined plane props against the adjusting inclined plane and presses the adjusting inclined plane back into the adjusting cavity, the adjusting rod moves downwards, the friction block props against the ground, the separating state is that the moving block moves away from the adjusting point, the adjusting inclined plane is reset to the adjusting point by a reset spring, the adjusting rod moves upwards, and the friction block separates from the ground.

Through adopting above-mentioned technical scheme, when hoisting accessory removed unevenness's road surface and stopped the operation, the wheel subassembly is not enough to the land fertility of grabbing on ground, can start the regulation driver this moment, make the movable block remove the regulation point, it is first with adjusting the inclined plane and coincide to remove the inclined plane, then remove the inclined plane and continue to remove, press back the inclined plane of adjusting in adjusting the chamber, then the regulating block drives the regulation pole and moves down, make the clutch blocks and ground contact, thereby the land fertility of grabbing on wheel subassembly to ground has been increased, prevent to take place to slide, and adjust the driver and remove the movable block from the regulation point when needing hoisting accessory to remove, adjust the inclined plane this moment under reset spring's effect, reset to the regulation point, clutch blocks and ground phase separation this moment, through the removal of clutch blocks, reach the influence of hoisting accessory to ground grabbing the fertility size.

The utility model discloses further set up to: the bottom of the friction block is provided with a friction layer which is in contact with the ground.

Through adopting above-mentioned technical scheme, the setting of frictional layer increases the frictional force with ground, prevents to slide.

The utility model discloses further set up to: an elastic layer is arranged between the friction layer and the friction block.

Through adopting above-mentioned technical scheme, when being directed against ground unevenness, frictional layer and ground contact, the bellied part in ground can go frictional layer inwards to go this moment, and then compression elastic layer for the area of contact on frictional layer and ground is bigger, increases frictional force.

The utility model discloses further set up to: the number of the reset springs is two, and the two reset springs are respectively arranged on two sides of the adjusting rod.

Through adopting above-mentioned technical scheme, two reset spring's setting makes the power that resets more powerful, avoids the clutch blocks to contact with ground always.

The utility model discloses further set up to: the lifting mechanism comprises a hook, a rope line, a pulley block, a suspension arm and a hook driver, the suspension arm is arranged on the base, the pulley block is arranged on the suspension arm, the rope line penetrates through the pulley block, one end of the rope line is fixed on the hook, and the other end of the rope line is arranged on the hook driver and driven by the hook driver.

Drawings

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

fig. 2 is a partial enlarged view a of the present invention.

In the figure: 1. a hoisting mechanism; 11. hooking; 12. a rope thread; 13. a pulley block; 14. a suspension arm; 15. a hook driver; 2. a base; 21. an adjustment chamber; 22. an accommodating chamber; 23. an adjustment point; 24. adjusting the driver; 241. a moving block; 25. a regulating block; 251. adjusting the inclined plane; 26. a return spring; 27. adjusting a rod; 28. a friction block; 281. an elastic layer; 282. and (4) a friction layer.

Detailed Description

Embodiments of the present invention will be further described with reference to fig. 1 to 2.

A lifting device capable of adjusting the magnitude of ground grabbing force comprises a lifting mechanism 1 and a base 2, wherein the lifting mechanism 1 is arranged on the base 2, a wheel assembly 3 used for moving is arranged at the bottom of the base 2, an adjusting cavity 21 which is vertically arranged is also arranged at the bottom of the base 2, an accommodating cavity 22 is arranged in the base 2, the adjusting cavity 21 is communicated with the accommodating cavity 22, the intersection of the adjusting cavity 21 and the accommodating cavity 22 serves as an adjusting point 23, an adjusting driver 24 is arranged in the accommodating cavity 22, the adjusting driver 24 drives a moving block 241 to be arranged, the moving track of the moving block 241 passes through the adjusting point 23, a moving inclined plane 242 which gradually reduces the transverse sectional area along the direction of the moving block 241 far away from the adjusting driver 24 is arranged on one side of the moving block 241 far away from the adjusting driver 24, an adjusting block 25 which vertically moves is arranged in the adjusting cavity 21, and the adjusting block 25 is provided with an adjusting inclined plane 251 which is matched with the shape of the moving inclined plane 242, a reset spring 26 for resetting the adjusting inclined plane 251 to the adjusting point 23 is arranged between the adjusting block 25 and the bottom of the adjusting cavity 21, the adjusting block 25 is provided with an adjusting rod 27 extending out of the adjusting cavity 21, the adjusting block 25 and the adjusting rod 27 synchronously move, one side of the adjusting rod 27 relatively far away from the adjusting block 25 is provided with a friction block 28, the friction block 28 is in an abutting state and a separating state by the moving block 241, the abutting state is that the moving block 241 moves to the adjusting point 23, the moving inclined plane 242 abuts against the adjusting inclined plane 251 and presses the adjusting inclined plane 251 back into the adjusting cavity 21, the adjusting rod 27 moves downwards, the friction block 28 abuts against the ground, the separating state is that the moving block 241 moves away from the adjusting point 23, the adjusting inclined plane 251 is reset to the adjusting point 23 by the reset spring 26, the adjusting rod 27 moves upwards, the friction block 28 separates from the ground, when the lifting device moves to an uneven road surface and stops working, the ground gripping force of the wheel assembly 3 on the ground is insufficient, at this time, the adjusting driver 24 can be started, so that the moving block 241 moves to the adjusting point 23, the moving inclined plane 242 is firstly matched with the adjusting inclined plane 251, then the moving inclined plane 242 continues to move, the adjusting inclined plane 251 is pressed back to the adjusting cavity 21, then the adjusting block 25 drives the adjusting rod 27 to move downwards, so that the friction block 28 is in contact with the ground, the ground gripping force of the wheel assembly 3 on the ground is increased, sliding is prevented, when the lifting device needs to move, the adjusting driver 24 moves the moving block 241 away from the adjusting point 23, at this time, the adjusting inclined plane 251 is reset to the adjusting point 23 under the action of the reset spring 26, at this time, the friction block 28 is separated from the ground, and the influence of the lifting device on the ground gripping force is achieved through the movement of the friction block 28.

The bottom of the friction block 28 is provided with a friction layer 282 contacting the ground, and the friction layer 282 increases the friction force with the ground to prevent sliding.

An elastic layer 281 is arranged between the friction layer 282 and the friction block 28, when the ground is uneven, the friction layer 282 contacts with the ground, at this time, the friction layer 282 is pressed inwards by the convex part of the ground, and then the elastic layer 281 is compressed, so that the contact area between the friction layer 282 and the ground is larger, and the friction force is increased.

The number of reset springs 26 is two, and two reset springs 26 set up respectively in the both sides of adjusting pole 27, and two reset springs 26 set up to make the restoring force stronger, avoid clutch blocks 28 to contact with ground always.

The lifting mechanism 1 comprises a hook 11, a rope 12, a pulley block 13, a suspension arm 14 and a hook driver 15, wherein the suspension arm 14 is arranged on the base 2, the pulley block 13 is arranged on the suspension arm 14, the rope 12 penetrates through the pulley block 13, one end of the rope 12 is fixed on the hook 11, and the other end of the rope is arranged on the hook driver 15 and driven by the hook driver 15.

The specific embodiments are only for explaining the present invention, and it is not a limitation to the present invention, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a can adjust hoisting accessory of grabbing ground power size, includes hoisting accessory (1) and base (2), hoisting accessory (1) sets up on base (2), and base (2) bottom is provided with the wheel subassembly that is used for the removal, its characterized in that: the adjusting device is characterized in that an adjusting cavity (21) which is vertically arranged is further arranged at the bottom of the base (2), an accommodating cavity (22) is arranged in the base (2), the adjusting cavity (21) is communicated with the accommodating cavity (22), the intersection of the adjusting cavity (21) and the accommodating cavity (22) serves as an adjusting point (23), an adjusting driver (24) is arranged in the accommodating cavity (22), the adjusting driver (24) drives a moving block (241) to be arranged, the moving track of the moving block (241) passes through the adjusting point (23), a moving inclined plane which gradually reduces the cross-sectional area along the direction of the moving block (241) far away from the adjusting driver (24) is arranged on one side of the moving block (241) far away from the adjusting driver (24), an adjusting block (25) which vertically moves is arranged in the adjusting cavity (21), the adjusting block (25) is provided with an adjusting inclined plane (251) which is matched with the shape of the moving inclined plane, and a position between the adjusting inclined plane (25) and the bottom of the adjusting cavity (21) is used for resetting the adjusting inclined plane (251) to the adjusting point (23) ) The adjusting device comprises a reset spring (26), the adjusting block (25) is provided with an adjusting rod (27) extending out of the adjusting cavity (21), the adjusting block (25) and the adjusting rod (27) move synchronously, a friction block (28) is arranged on one side, relatively far away from the adjusting block (25), of the adjusting rod (27), the friction block (28) is enabled to be in a propping state and a separating state by the moving block (241), the propping state is that the moving block (241) moves to the adjusting point (23), the moving inclined plane props against the adjusting inclined plane (251) and presses the adjusting inclined plane (251) back into the adjusting cavity (21), the adjusting rod (27) moves downwards, the friction block (28) props against the ground, the separating state is that the moving block (241) moves away from the adjusting point (23), the adjusting inclined plane (251) is reset to the adjusting point (23) by the reset spring (26), the adjusting rod (27) moves upwards, and the friction block (28) separates from the ground.

2. The hoisting device capable of adjusting the magnitude of the gripping force according to claim 1, wherein: the bottom of the friction block (28) is provided with a friction layer (282) which is in contact with the ground.

3. The hoisting device capable of adjusting the magnitude of the gripping force according to claim 2, wherein: an elastic layer (281) is arranged between the friction layer (282) and the friction block (28).

4. The hoisting device capable of adjusting the magnitude of the gripping force according to claim 1, wherein: the number of the return springs (26) is two, and the two return springs (26) are respectively arranged on two sides of the adjusting rod (27).

5. The hoisting device capable of adjusting the magnitude of the gripping force according to claim 1, wherein: the lifting mechanism (1) comprises a hook (11), a rope line (12), a pulley block (13), a suspension arm (14) and a hook (11) driver, wherein the suspension arm (14) is arranged on the base (2), the pulley block (13) is arranged on the suspension arm (14), the rope line (12) penetrates through the pulley block (13), one end of the rope line (12) is fixed on the hook (11), and the other end of the rope line (12) is arranged on the hook (11) driver and is driven by the hook (11) driver.