CN216304663U

CN216304663U - Foundation pit concrete support demolishs support

Info

Publication number: CN216304663U
Application number: CN202122738675.4U
Authority: CN
Inventors: 许涛; 王海光; 王文峰; 李季委; 张伟; 周杨; 向晓云; 王昭; 郑学军
Original assignee: China Railway No 8 Engineering Group Co Ltd; Construction Co of China Railway No 8 Engineering Group Co Ltd
Current assignee: China Railway No 8 Engineering Group Co Ltd; Construction Co of China Railway No 8 Engineering Group Co Ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-04-15
Anticipated expiration: 2031-11-10

Abstract

The utility model belongs to the technical field of underground structure construction, and particularly relates to a foundation pit concrete support dismantling support which comprises a support plate, wherein the support plate is provided with support legs, the support legs are provided with universal wheels, the support plate is provided with a lifting mechanism, and the support plate is provided with a lifting mechanism; the lifting mechanism comprises a support column, a bearing plate and a damping spring, the support column is arranged on the support plate, the bearing plate is arranged on the support column, the bearing plate is provided with a first chute, the damping spring is sleeved on the support column, and an auxiliary blocking assembly is arranged between the support plate and the bearing plate; the device conveniently removes through the universal wheel that sets up, and loading board and support column can lift and block turning on one's side the concrete support that is cut off, prevents to be cut into massive concrete support and drops to pound bad underground structure roof and waterproof layer.

Description

Foundation pit concrete support demolishs support

Technical Field

The utility model belongs to the technical field of underground structure construction, and particularly relates to a foundation pit concrete support dismantling support.

Background

In recent years, with the large-scale development of urban infrastructure, underground structures are designed and constructed more and more in order to make intensive use of limited land resources. A large part of underground structure is constructed by adopting an open cut and smooth method, namely, foundation pit construction is firstly carried out, a structural part is directly built in a foundation pit after the foundation pit is excavated to the bottom, and earth covering and backfilling are carried out after the underground structure is built. During foundation pit design construction, a concrete support needs to be arranged on the enclosing structure under many conditions, the concrete support needs to be dismantled after the underground structure construction is completed, and the constructed underground structure or the waterproof layer needs to be protected from being damaged in the dismantling process. Common methods for removing these concrete supports are cutting blocks, mechanical chiseling with a pick or breaker, demolition blasting, and the like. The cutting block is high in efficiency and good in safety, is friendly to the surrounding environment, and is widely applied.

The cutting and blocking for removing the foundation pit concrete support is that the concrete support is cut into large blocks by special equipment and then transferred to the outside of a field by a crane for breaking and recycling; in order to prevent the cut massive concrete supports from falling and smashing a top plate and a waterproof layer of the underground structure during cutting, the supports can be used for lifting the concrete supports before cutting, so that the cut concrete supports cannot fall; therefore, the foundation pit concrete support dismantling support is provided.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is: aim at providing a support is demolishd to foundation ditch concrete support, the device is through the convenient removal of universal wheel that sets up, and loading board and support column can lift and block turning on one's side the concrete support that is cut off, prevents to be cut into massive concrete support and drops to pound bad underground structure roof and waterproof layer.

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

the foundation pit concrete support dismantling support comprises a supporting plate, supporting legs are fixedly arranged at four corners of the lower end of the supporting plate, universal wheels are fixedly arranged at the lower ends of the four supporting legs, a lifting mechanism is arranged at the upper end of the supporting plate, and a lifting mechanism is arranged at the lower end of the supporting plate;

the lifting mechanism comprises four support columns, a bearing plate and four damping springs, the four support columns are fixedly arranged at four corners of the upper end of the support plate respectively, the bearing plate is slidably arranged on the four support columns, four and four first sliding grooves matched with the support columns are formed in the bearing plate, the four damping springs are respectively sleeved on the outer sides of the support columns and four upper ends of the damping springs are fixedly connected with the lower end of the bearing plate and four lower ends of the damping springs are fixedly connected with the upper end of the support plate, and an auxiliary blocking assembly is arranged between the support plate and the bearing plate.

The auxiliary blocking assembly comprises a plurality of sliding rods, a plurality of through grooves are uniformly formed in the periphery of the upper end of the bearing plate, the plurality of sliding rods are uniformly and fixedly arranged in the periphery of the upper end of the supporting plate, and the plurality of sliding rods are respectively in sliding connection with the plurality of through grooves. A plurality of through grooves are all stretched out in the upside of a plurality of slide bars when initial condition, bear when lifting at the loading board to the concrete support, and four support columns and a plurality of slide bars can block the concrete support on the loading board, prevent that the concrete support from turning on one's side and rolling on the loading board, prevent that the concrete support from dropping.

The lifting mechanism comprises a supporting base and four cylinders, the supporting base is slidably arranged on four supporting legs, four second sliding grooves matched with the supporting legs are formed in the supporting base, the cylinders are annularly and uniformly fixed on the upper end of the supporting base, and the output ends of the upper sides of the cylinders are fixedly connected with the lower end of the supporting plate. Four cylinders begin to work, earlier with supporting the base and promote downwards, after supporting base and working plane butt, the cylinder continues to work, can upwards promote the backup pad, with this height that improves whole support, and when backup pad rebound, can drive four supporting legss and four universal wheels along second spout rebound, with this make four universal wheels break away from working plane, whole support bottom changes into and supports the base support this moment, prevent that this support from rocking when using from shaking

And a shock pad is fixedly arranged at the lower end of the supporting base. The shock pad can reduce the vibrations that the during operation produced.

The upper end of the bearing plate is provided with a plurality of rope grooves. The rope groove is convenient for people to prevent the rope, can place the rope in the inside of rope groove earlier before work, makes things convenient for follow-up crane to lift by crane the concrete and supports.

And a push-pull handle is fixedly arranged at the left end of the supporting plate. The push-pull handle is convenient for people to push the whole support to move.

When supporting the cutting to the concrete, the concrete that is cut supports will drop on the loading board, can reduce the impact when the concrete support falls through four damping spring's setting, and the upside and the supplementary subassembly that blocks of four support columns can block the concrete support, prevent that it from turning on one's side and dropping.

Drawings

The utility model is further illustrated by the non-limiting examples given in the accompanying drawings;

fig. 1 is a first structural schematic diagram of a foundation pit concrete support dismantling support according to an embodiment of the present invention;

fig. 2 is a structural schematic diagram of a foundation pit concrete support dismantling support according to an embodiment of the utility model.

The support plate 1, the support foot 11, the universal wheel 111, the support column 12, the bearing plate 13, the first sliding groove 131, the damping spring 14, the sliding rod 15, the through groove 151, the support base 21, the second sliding groove 211, the air cylinder 22, the damping pad 23, the rope groove 24 and the push-pull handle 25.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

As shown in fig. 1-2, the foundation pit concrete support dismantling support comprises a support plate 1, wherein support legs 11 are fixedly arranged at four corners of the lower end of the support plate 1, universal wheels 111 are fixedly arranged at the lower ends of the four support legs 11, a lifting mechanism is arranged at the upper end of the support plate 1, and a lifting mechanism is arranged at the lower end of the support plate 1;

the lifting mechanism comprises four supporting columns 12, a bearing plate 13 and four damping springs 14, the four supporting columns 12 are fixedly arranged at four corners of the upper end of the supporting plate 1 respectively, the bearing plate 13 is arranged on the four supporting columns 12 in a sliding manner, four first sliding grooves 131 matched with the four supporting columns are formed in the bearing plate 13, the four damping springs 14 are respectively sleeved on the outer sides of the four supporting columns 12, the upper ends of the four damping springs 14 are fixedly connected with the lower end of the bearing plate 13, the lower ends of the four damping springs 14 are fixedly connected with the upper end of the supporting plate 1, and an auxiliary blocking assembly is arranged between the supporting plate 1 and the bearing plate 13.

The lifting mechanism can lift the whole device, so that an operator can conveniently adjust the height of the bracket, and the upper side of the bracket is more attached to the concrete support; in an initial state, the upper sides of the four support columns 12 all slide out of the first sliding grooves 131, the four support columns 12 can guide the bearing plate 13, and the upper sides of the four support columns 12 can prevent the concrete support from turning sideways, so that the concrete support is blocked; the auxiliary blocking component strengthens the blocking of the concrete support;

when people cut and remove the concrete support, the support can be quickly pushed to the position below the concrete support through the four universal wheels 111 arranged below the support, then the device is lifted through the lifting mechanism until the upper ends of the four support columns 12 are close to the periphery of the cut concrete support, the concrete support can be cut at the moment, the cut concrete support can fall on the bearing plate 13, the impact of the concrete support when the concrete support falls can be reduced through the arrangement of the four damping springs 14, the concrete support can be blocked by the upper sides of the four support columns 12 and the auxiliary blocking component, and the concrete support is prevented from being turned on one side and falling off; the lifting of the cut concrete supports is completed, and then people can lift the concrete supports away by using a crane, so that the concrete supports cut into large blocks are prevented from falling and smashing the top plate of the underground structure and the waterproof layer of the underground structure.

The utility model provides a foundation pit concrete support dismantling support which is convenient to move through an arranged universal wheel, and a bearing plate and a support column can lift the cut concrete support and prevent the cut concrete support from turning sideways, so that the cut concrete support is prevented from falling and smashing a top plate of an underground structure and a waterproof layer of the underground structure.

The auxiliary blocking assembly comprises a plurality of sliding rods 15, a plurality of through grooves 151 are uniformly formed in the periphery of the upper end of the bearing plate 13, the plurality of sliding rods 15 are uniformly and fixedly arranged in the periphery of the upper end of the supporting plate 1, and the plurality of sliding rods 15 are respectively in sliding connection with the plurality of through grooves 151. The upper sides of the plurality of sliding rods 15 all slide to extend out of the plurality of through grooves 151 in the initial state, when the bearing plate 13 bears and lifts the concrete support, the four supporting columns 12 and the plurality of sliding rods 15 can block the concrete support on the bearing plate 13, the concrete support is prevented from turning and rolling on the upper side of the bearing plate 13, and the concrete support is prevented from falling.

Elevating system includes a support base 21 and four cylinders 22, supports on base 21 slides and locates four supporting legss 11, support and set up on the base 21 four with four supporting legss 11 assorted second spouts 211, four cylinders 22 annular is evenly fixed to be located and supports base 21 upper end, the output of four cylinders 22 upsides all with 1 lower extreme fixed connection of backup pad. Four cylinders 22 begin to work the time, earlier support base 21 and promote downwards, after support base 21 and work plane butt, cylinder 22 continues to work, can upwards promote backup pad 1, with this height that improves whole support, and when backup pad 1 rebound, can drive four supporting legss 11 and four universal wheel 111 along second spout 211 rebound, with this make four universal wheel 111 break away from the work plane, whole support bottom changes into and supports base 21 support this moment, prevent that this support from rocking when using.

A shock pad 23 is fixedly arranged at the lower end of the supporting base 21. The cushion 23 can reduce vibration generated during operation.

The upper end of the bearing plate 13 is provided with a plurality of rope grooves 24. The rope groove 24 is convenient for people to prevent ropes, and the ropes can be placed in the rope groove 24 before work, so that a subsequent crane can conveniently lift the concrete support.

The left end of the supporting plate 1 is fixedly provided with a push-pull handle 25. The push-pull handle 25 is convenient for people to push the whole bracket to move.

The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a support is demolishd to foundation ditch concrete support, includes the backup pad, its characterized in that: supporting legs are fixedly arranged at four corners of the lower end of the supporting plate, universal wheels are fixedly arranged at the lower ends of the four supporting legs, a lifting mechanism is arranged at the upper end of the supporting plate, and a lifting mechanism is arranged at the lower end of the supporting plate;

2. The foundation pit concrete support demolition bracket of claim 1, wherein: the auxiliary blocking assembly comprises a plurality of sliding rods, a plurality of through grooves are uniformly formed in the periphery of the upper end of the bearing plate, the plurality of sliding rods are uniformly and fixedly arranged in the periphery of the upper end of the supporting plate, and the plurality of sliding rods are respectively in sliding connection with the plurality of through grooves.

3. The foundation pit concrete support demolition bracket of claim 1, wherein: the lifting mechanism comprises a supporting base and four cylinders, the supporting base is slidably arranged on four supporting legs, four second sliding grooves matched with the supporting legs are formed in the supporting base, the cylinders are annularly and uniformly fixed on the upper end of the supporting base, and the output ends of the upper sides of the cylinders are fixedly connected with the lower end of the supporting plate.

4. A foundation pit concrete bracing demolition support according to claim 3, wherein: and a shock pad is fixedly arranged at the lower end of the supporting base.

5. The foundation pit concrete support demolition bracket of claim 1, wherein: the upper end of the bearing plate is provided with a plurality of rope grooves.

6. The foundation pit concrete support demolition bracket of claim 1, wherein: and a push-pull handle is fixedly arranged at the left end of the supporting plate.