CN220376138U

CN220376138U - Steel truss lifting device

Info

Publication number: CN220376138U
Application number: CN202322042760.6U
Authority: CN
Inventors: 赵庆学; 顾军; 李佳男; 戴恩龙; 贾莹莹; 郜玉芬; 徐亚凡
Original assignee: China Construction Seventh Engineering Division Corp Ltd
Current assignee: China Construction Seventh Engineering Division Corp Ltd
Priority date: 2023-08-01
Filing date: 2023-08-01
Publication date: 2024-01-23
Anticipated expiration: 2033-08-01

Abstract

The utility model provides a steel truss hoisting tool, which effectively solves the problems that the paint on the surface of the paint can be seriously dropped in the use process of the existing truss clamping hoisting tool, and the existing truss clamping hoisting tool can be used only by combining and installing multiple components in the use process, so that the clamping process is complicated; the technical scheme is that the device comprises two annular plates which are vertically and symmetrically arranged, a space is arranged between the annular plates, a plurality of circumferentially and uniformly distributed camshafts are arranged in the space, the end parts of the camshafts are rotatably arranged on the annular plates, a ring sleeve coaxial with the annular plates is arranged in the space, a plurality of vertical screw rods penetrate through the ring sleeve, the ring sleeve is in threaded connection with the screw rods, and the screw rods can simultaneously rotate to drive the ring sleeve to move up and down; the outer circular surface of the cam shaft is provided with an inclined groove, a plurality of protruding blocks corresponding to the grooves one by one are fixed on the inner side of the ring sleeve, the cam shafts can be driven to rotate simultaneously through the protruding blocks when the ring sleeve moves up and down, and the cam shafts are fixed and do not rotate when the ring sleeve is fixed; the annular plate is fixed with a hanging buckle.

Description

Steel truss lifting device

Technical Field

The utility model relates to the technical field of steel truss hoisting tools, in particular to a steel truss hoisting tool.

Background

The pipe truss structure in the steel structure is common, and the hoisting of the pipe truss at the present stage mainly adopts a mode of binding steel wire ropes or welding lifting lugs; the mode of binding the steel wire rope is convenient to assemble and disassemble on site, but the steel wire rope can rub with the pipe truss to damage paint, and the angle and levelness in the air of the pipe truss are difficult to ensure by adopting the steel wire rope to hoist the pipe truss; the welding lifting lug is welded on the pipe truss during factory processing, so that on-site loading and unloading are also convenient, but the lifting lug needs to be cut off after lifting is finished, the risk of cutting off the lifting lug at high altitude is high, the construction rate is low, the labor cost is increased, and the structure is influenced to a certain extent.

In this regard, chinese patent CN218290146U discloses a steel truss lifting tool for solving the above-mentioned drawbacks, but it still has obvious drawbacks: firstly, an assembled structure is adopted, a buckling mode is adopted, and in order to meet the clamping requirement of trusses with multiple sizes, two arc plates are adopted, the arc plates are in line contact, the contact positions are still fewer, the relative friction force is large, and the serious paint dropping of paint on the surface of the truss still can be caused; secondly, the truss clamping requirements of different diameters cannot be met.

The steel truss hoisting tool is characterized in that the steel truss hoisting tool is integrally clamped, trusses are clamped from multiple points and directions, contact positions are increased, damage to paint on the surfaces of the trusses is avoided as much as possible, the clamping process is convenient and fast, and the steel truss hoisting tool can adapt to truss hoisting requirements without diameters.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the steel truss hoisting tool, which effectively solves the problems that the paint on the surface of the paint can be seriously dropped in the use process of the existing truss clamping hoisting tool, and the existing truss clamping hoisting tool can be used only by combining and installing multiple components in the use process, so that the clamping process is complicated.

The technical scheme is that the device comprises two annular plates which are vertically and symmetrically arranged, a space is arranged between the annular plates, a plurality of circumferentially and uniformly distributed camshafts are arranged in the space, the end parts of the camshafts are rotatably arranged on the annular plates, a ring sleeve coaxial with the annular plates is arranged in the space, a plurality of vertical screw rods penetrate through the ring sleeve, the ring sleeve is in threaded connection with the screw rods, and the screw rods can simultaneously rotate to drive the ring sleeve to move up and down; the outer circular surface of the cam shaft is provided with an inclined groove, a plurality of protruding blocks corresponding to the grooves one by one are fixed on the inner side of the ring sleeve, the cam shafts can be driven to rotate simultaneously through the protruding blocks when the ring sleeve moves up and down, and the cam shafts are fixed and do not rotate when the ring sleeve is fixed; the annular plate is fixed with a hanging buckle.

Further, the upper end of the screw is fixed with a gear, the annular plate at the upper side is sleeved with a gear ring, a bearing is arranged between the gear ring and the annular plate, and the gear ring can drive a plurality of gears to rotate simultaneously.

Furthermore, hanging buckles can be arranged on the annular sleeve and the annular plate, and the more the hanging buckles are, the higher the safety coefficient is for hanging.

Drawings

Fig. 1 is a schematic overall view (three-dimensional exploded view) of the present utility model.

Fig. 2 is a front cross-sectional view of the present utility model.

Fig. 3 is a top cross-sectional view of the present utility model.

Fig. 4 is a state diagram of the present utility model when a small diameter truss is clamped.

Detailed Description

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

The utility model is provided by figures 1 to 4, which comprises two annular plates 1 which are arranged symmetrically up and down, wherein a space is arranged between the annular plates 1, a plurality of circumferentially uniformly distributed cam shafts 2 are arranged in the space, the end parts of the cam shafts 2 are rotatably arranged on the annular plates 1, a ring sleeve 3 coaxial with the annular plates 1 is arranged in the space, a plurality of vertical screw rods 4 penetrate through the ring sleeve 3, the ring sleeve 3 is in threaded connection with the screw rods 4, and the screw rods 4 can simultaneously rotate to drive the ring sleeve 3 to move up and down; the outer circular surface of the cam shaft 2 is provided with an inclined groove 5, a plurality of protruding blocks 6 which are in one-to-one correspondence with the grooves 5 are fixed on the inner side of the ring sleeve 3, the plurality of cam shafts 2 can be driven to rotate simultaneously through the plurality of protruding blocks 6 when the ring sleeve 3 moves up and down, and when the ring sleeve 3 is fixed, the cam shafts 2 are fixed and do not rotate; a hanging buckle 7 is fixed on the annular plate 1.

In order to realize the simultaneous rotation of a plurality of screws 4, the upper end of each screw 4 is fixedly provided with a gear 8, the annular plate 1 at the upper side is sleeved with a gear ring 9, a bearing is arranged between the gear ring 9 and the annular plate 1, and the gear ring 9 can drive the plurality of gears 8 to simultaneously rotate.

The loop 3 and the annular plate 1 can be provided with hanging buckles 7, and the more the hanging buckles 7 are, the higher the safety coefficient is for hanging.

It should be noted that, in order to achieve many ways of simultaneously rotating the plurality of screws 4, besides the above-mentioned gear ring 9, a synchronous belt, a sprocket, or a rope pulling manner may be adopted, which are all conventional techniques in the art, and are not described herein.

When the multi-point multi-directional clamping device is used, the initial state is as shown in fig. 1, the truss end part sequentially penetrates through the two annular plates 1, then the gear ring 9 is rotated, the gear ring 9 rotates to drive the gears 8 to rotate simultaneously, the gears 8 rotate simultaneously to enable the screws 4 to rotate simultaneously, then the screws 4 rotate simultaneously to enable the annular sleeve 3 to move integrally upwards, in the upward movement of the annular sleeve 3, the annular sleeve 3 slides in the corresponding grooves 5 through the protruding blocks 6 on the annular sleeve 3, so that the camshafts 2 rotate simultaneously, the camshafts 2 rotate simultaneously to clamp the truss in multiple points and multiple directions, and after the two ends of the truss are clamped, the truss can be lifted normally.

Claims

1. The steel truss hoisting tool is characterized by comprising two annular plates (1) which are vertically and symmetrically arranged, wherein a plurality of circumferentially and uniformly distributed cam shafts (2) are arranged in the intervals, the end parts of the cam shafts (2) are rotatably arranged on the annular plates (1), a ring sleeve (3) coaxial with the annular plates (1) is arranged in the intervals, a plurality of vertical screw rods (4) penetrate through the ring sleeve (3), the ring sleeve (3) is in threaded connection with the screw rods (4), and the screw rods (4) can simultaneously rotate to drive the ring sleeve (3) to move up and down; the outer circular surface of the cam shaft (2) is provided with an inclined groove (5), a plurality of protruding blocks (6) which are in one-to-one correspondence with the grooves (5) are fixed on the inner side of the ring sleeve (3), the plurality of cam shafts (2) can be driven to rotate simultaneously through the plurality of protruding blocks (6) when the ring sleeve (3) moves up and down, and when the ring sleeve (3) is fixed, the cam shafts (2) are fixed and do not rotate; a hanging buckle (7) is fixed on the annular plate (1).

2. The steel truss hoisting tool according to claim 1, wherein gears (8) are fixed at the upper ends of the screws (4), a gear ring (9) is sleeved on the annular plate (1) at the upper side, a bearing is arranged between the gear ring (9) and the annular plate (1), and the gear ring (9) can drive the gears (8) to rotate simultaneously.

3. The steel truss hoisting tool according to claim 1, wherein the loop (3) and the annular plate (1) can be provided with hanging buckles (7), and the more the hanging buckles (7), the higher the hoisting safety coefficient.