CN216551972U

CN216551972U - Easy folding steel shotcrete of adjustable axial force

Info

Publication number: CN216551972U
Application number: CN202122890668.6U
Authority: CN
Inventors: 高超然; 任光辉; 王波; 田海燕; 唐兰
Original assignee: China 19th Metallurgical Corp
Current assignee: China 19th Metallurgical Corp
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-05-17
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses an adjustable axial force easily-folded steel support, which relates to the technical field of constructional engineering and comprises a bottom tray, a plurality of movable tubes, a multi-station hydraulic machine and a movable tube limiter, wherein the multi-station hydraulic machine is fixed above the bottom tray, the movable tube limiter limits the displacement of the movable tubes, a plurality of hydraulic output shafts driving the movable tubes to displace are uniformly distributed on the circumference of the multi-station hydraulic machine, the movable tubes are arranged above the bottom tray through the movable tube limiter, each hydraulic output shaft is correspondingly connected with one movable tube, each movable tube comprises a stress end and a support end, the stress ends of the movable tubes are connected with the hydraulic output shafts, and a plurality of movable tube vertical grooves which correspond to the stress ends of the movable tubes one by one are arranged on the upper surface of the bottom tray. The utility model can effectively support deep and large circular foundation pits and irregular foundation pits, dynamically balance the axial force of the steel support and monitor the deformation condition of the enclosure structure; the design of easy folding can greatly shorten the time limit for a project.

Description

Easy folding steel shotcrete of adjustable axial force

Technical Field

The utility model relates to the technical field of constructional engineering, in particular to an easily foldable steel support with adjustable axial force.

Background

Along with the development of urban basic construction, underground engineering construction is more and more, foundation pit engineering develops towards a larger and deeper direction, and more deep foundation pits need safe support. The steel support is widely applied to deep foundation pit engineering due to the specific advantages of the steel support in the technical field of inner supports. The steel support plays an extremely important role in the construction process of deep foundation pit engineering, and becomes a preferred inner support for a large number of deep foundation pit engineering due to the characteristics of light weight, convenience in disassembly, reusability and the like. The steel support is generally formed by welding or mechanically connecting prefabricated steel pipes or section steel on site, and compared with a reinforced concrete support, the steel support has a supporting effect after the installation is finished, and the lower soil can be excavated immediately. But the steel support is in a dynamic change state under pressure in the supporting process, dynamic monitoring is needed, and a jack is used for reinforcing the prestress in time to control the deformation of the enclosure structure; the steel support commonly used at present is assembled by adopting a plurality of sections of steel pipes, a pipe orifice flange is fixed at a joint through bolts, and the axis adjustment is realized by adding thin steel plate sheets with different thicknesses at the flange. In conclusion, the conventional steel support has serious shortcomings in safety management and supporting speed.

The existing supporting technology is more elbow-catching in the construction of deep and large circular foundation pits, so that the safety risk is increased due to the slow mounting and dismounting speed, and the axial force cannot be dynamically applied, so that the further reasonable improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing the steel support which can adjust the axial force and is easy to fold, dynamically balancing the axial force of the steel support and monitoring the deformation condition of the enclosure structure in time.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model provides an easy folding steel shotcrete of adjustable axial force, includes bottom tray, a plurality of movable tube, fixes the multistation hydraulic press in bottom tray top and the movable tube stopper of restriction movable tube displacement, multistation hydraulic press circumference equipartition has the hydraulic output shaft of a plurality of drive movable tube displacement, the movable tube passes through movable tube stopper setting in bottom tray top, and every hydraulic output shaft correspondence is connected with one the movable tube, the movable tube includes atress end and support end, the atress end and the hydraulic output shaft connection of movable tube, bottom tray upper surface is provided with the movable tube vertical groove of a plurality of and movable tube atress end one-to-one.

Furthermore, be provided with the spacing hole of a style of calligraphy on the activity pipe stopper, be provided with the gag lever post with the spacing hole complex of a style of calligraphy on the atress end of activity pipe, the activity pipe passes through the cooperation movable mounting in bottom tray top of gag lever post and the spacing hole of a style of calligraphy.

Furthermore, the multi-station hydraulic machine comprises hydraulic oil bins corresponding to the hydraulic output shafts one by one, and an axial force monitoring meter is arranged on each hydraulic oil bin.

Furthermore, the hydraulic control device also comprises a groove-shaped top iron arranged on the hydraulic output shaft, the stress end of the movable pipe is a spherical surface, and the groove-shaped top iron is matched with the spherical surface of the stress end.

Furthermore, a flange plate is arranged at the supporting end of the movable pipe.

The utility model has the beneficial effects that: the utility model controls the displacement of the hydraulic output shaft of the multi-station hydraulic press to drive the movable pipe, thereby controlling the extension and the shortening of the support of the utility model, dynamically balancing the axial force of the steel support, monitoring the deformation condition of the enclosure structure in time, adjusting the extension length of the corresponding movable pipe according to the deformation condition of the enclosure structure at different positions, realizing dynamic balance support, and simultaneously, in the process of transportation, transfer and installation, because the bottom tray of the utility model is provided with the vertical grooves of the movable pipe which are in one-to-one correspondence with the stress ends of the movable pipe, when the support is not used, the movable pipe is rotated upwards, so that the stress end of the movable pipe is matched and installed in the vertical groove of the movable pipe, thereby the movable pipe is changed from a horizontal state to a vertical state, the occupied space is reduced, the folding is realized, and the design of easy folding can greatly shorten the construction period.

Drawings

FIG. 1 is a top view of the present invention;

FIG. 2 is a top view of the bottom tray of the present invention;

FIG. 3 is a side view of the present invention;

shown in the figure: 1-a bottom tray; 101-a vertical groove of a movable tube; 2-a movable tube; 201-force bearing end; 202-a support end; 203-a limiting rod; 3-a multi-station hydraulic press; 301-hydraulic output shaft; 302-hydraulic oil sump; 4-a movable tube stopper; 401-a straight line shaped limiting hole; 5-an axial force monitoring meter; 6-trough type top iron; 7-a flange plate; 8, foundation pit.

Detailed Description

The utility model is further illustrated with reference to the following figures and examples.

As shown in fig. 1, 2 and 3, the easily foldable steel support with adjustable axial force comprises a bottom tray 1, a plurality of movable tubes 2, a multi-station hydraulic machine 3 fixed above the bottom tray 1 and movable tube stoppers 4 for limiting the displacement of the movable tubes 2, wherein a plurality of hydraulic output shafts 301 for driving the movable tubes 2 to displace are uniformly distributed on the circumference of the multi-station hydraulic machine 3, the movable tubes 2 are arranged above the bottom tray 1 through the movable tube stoppers 4, each hydraulic output shaft 301 is correspondingly connected with one movable tube 2, each movable tube 2 comprises a stressed end 201 and a support end 202, the stressed end 201 of each movable tube 2 is connected with the corresponding hydraulic output shaft 301, and a plurality of movable tube vertical grooves 101 corresponding to the stressed ends 201 of the movable tubes 2 one to one are arranged on the upper surface of the bottom tray 1. The utility model drives the movable tube 2 to move by controlling the hydraulic output shaft 301 of the multi-station hydraulic machine 3, thereby controlling the extension and the shortening of the support of the utility model, dynamically balancing the axial force of the steel support, and monitoring the deformation condition of the enclosure structure in time, the extension length of the corresponding movable pipe 2 is adjusted according to the deformation conditions of the enclosure structures at different positions, so that dynamic balance support is realized, and simultaneously in the processes of transportation, transfer and installation, since the bottom tray 1 of the present invention is provided with the movable tube vertical grooves 101 corresponding to the force-bearing ends 201 of the movable tubes 2 one to one, when not used for supporting, the movable tube 2 is rotated upward, so that the force-bearing end 201 of the movable tube 2 is fittingly installed in the movable tube upright groove 101, therefore, the movable pipe 2 is changed from a horizontal state to a vertical state, the occupied space is reduced, the folding is realized, and the construction period can be greatly shortened due to the design of easy folding.

The effect of activity pipe stopper 4 is to fix activity pipe 2 on bottom tray 1, restriction activity pipe 2's displacement for activity pipe 2 can be folded at the vertical recess 101 of activity pipe, and is specific, in this embodiment, be provided with the spacing hole of a style of calligraphy 401 on the activity pipe stopper 4, be provided with on the stress end 201 of activity pipe 2 with the spacing hole of a style of calligraphy 401 complex gag lever post 203, activity pipe 2 passes through gag lever post 203 and the spacing hole of a style of calligraphy 401's cooperation movable mounting in bottom tray 1 top. The limiting rod 203 can move in the linear limiting hole 401, so that the movable tube 2 can be extended and contracted, the extension and the shortening of the support are controlled, after the support is contracted to a specified position, the movable tube 2 is rotated upwards, the stress end 201 of the movable tube 2 is matched and arranged in the vertical groove 101 of the movable tube, and the movable tube 2 is changed from a horizontal state to a vertical state, so that the contraction is realized.

The multi-station hydraulic machine 3 comprises hydraulic oil bins 302 which correspond to the hydraulic output shafts 301 one by one, and the hydraulic oil bins 302 are provided with axial force monitoring meters 5. Each hydraulic output shaft 301 corresponds to one hydraulic oil bin 302, an axial force monitoring meter 5 is arranged on each hydraulic oil bin 302, axial force is detected in real time, the deformation condition of the enclosure structure corresponding to different positions is detected when the axial force is increased or reduced, and then the extension length of the corresponding movable pipe 2 is adjusted, so that dynamic balance support is realized.

Still including setting up the slot type top iron 6 on hydraulic output shaft 301, the atress end 201 of movable tube 2 is spherical, slot type top iron 6 and the spherical surface adaptation of atress end 201. The spherical surface adaptation of cell type top iron 6 and stress end 201 is convenient for to the stress of movable tube 2, spherical surface and the movable tube 2 of being convenient for are folded in the vertical recess 101 of movable tube simultaneously.

The supporting end 202 of the movable tube 2 is provided with a flange 7. Flange 7 the flange 5 is connected with the stiff end on the steel purlin, through setting up flange 7, is convenient for the activity pipe 2 and envelope to carry out quick erection joint.

Claims

1. The utility model provides an easy folding steel shotcrete of adjustable axial force which characterized in that: comprises a bottom tray (1), a plurality of movable tubes (2), a multi-station hydraulic machine (3) fixed above the bottom tray (1) and a movable tube limiter (4) for limiting the displacement of the movable tubes (2), a plurality of hydraulic output shafts (301) for driving the movable pipe (2) to move are uniformly distributed on the circumference of the multi-station hydraulic machine (3), the movable tube (2) is arranged above the bottom tray (1) through a movable tube limiter (4), each hydraulic output shaft (301) is correspondingly connected with one movable pipe (2), the movable pipe (2) comprises a stress end (201) and a support end (202), the stress end (201) of the movable pipe (2) is connected with the hydraulic output shaft (301), the upper surface of the bottom tray (1) is provided with a plurality of movable tube vertical grooves (101) which are in one-to-one correspondence with the stress ends (201) of the movable tubes (2).

2. The adjustable axial force, easy to fold steel support of claim 1, wherein: be provided with spacing hole of a style of calligraphy (401) on movable tube stopper (4), be provided with on stress end (201) of movable tube (2) with spacing hole of a style of calligraphy (401) complex gag lever post (203), movable tube (2) pass through gag lever post (203) and the cooperation movable mounting in bottom tray (1) top of the spacing hole of a style of calligraphy (401).

3. An adjustable axial force collapsible steel support according to claim 1 or 2 wherein: the multi-station hydraulic machine (3) comprises hydraulic oil bins (302) which correspond to the hydraulic output shafts (301) one to one, and axial force monitoring meters (5) are arranged on the hydraulic oil bins (302).

4. The adjustable axial force, easy folding steel support according to claim 3, characterized in that: still including setting up cell type top iron (6) on hydraulic output shaft (301), the atress end (201) of movable tube (2) is spherical, cell type top iron (6) and the spherical surface adaptation of atress end (201).

5. The adjustable axial force, easy folding steel support according to claim 4, characterized in that: and a flange plate (7) is arranged at the supporting end (202) of the movable pipe (2).