CN219862839U

CN219862839U - Foundation pit excavation protection structure

Info

Publication number: CN219862839U
Application number: CN202321005838.0U
Authority: CN
Inventors: 厉安平; 汤云铭; 张豪; 郭江枫
Original assignee: Zhejiang Zhongce Municipal Engineering Co ltd
Current assignee: Zhejiang Zhongce Municipal Engineering Co ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-10-20
Anticipated expiration: 2033-04-28

Abstract

The utility model relates to the field of foundation pit excavation, in particular to a foundation pit excavation protection structure. The utility model aims to provide a foundation pit excavation protection structure which can prevent sand and gravel falling from the pit wall from being blocked and protected when large foundation pit excavation is carried out, so that the danger that personnel in the pit are injured by the sand and gravel is prevented. The aim of the utility model is achieved by the following technical scheme: the utility model provides a foundation ditch excavation protective structure, includes prop stand and fixed connection at the square frame at prop stand top, evenly rotate along the circumferencial direction on the square frame and be connected with a plurality of bracing pieces, every the bottom of bracing piece is fixedly connected with a supporting seat respectively.

Description

Foundation pit excavation protection structure

Technical Field

The utility model relates to the field of foundation pit excavation, in particular to a foundation pit excavation protection structure.

Background

The foundation pit is a soil pit excavated at a foundation design position according to the elevation of the substrate and the plane size of the foundation. Before excavation, the excavation scheme is determined according to geological hydrologic data and the conditions of buildings nearby the site, and waterproof and drainage works are performed. The method of slope laying can be used by the person who excavates not deeply, makes the soil slope stable, and its slope size is fixed according to relevant construction regulation, and among the excavation work to the foundation ditch among the prior art, a foundation ditch excavation rail guard of application number 202022788582.8 for example can effectively guarantee constructor safety, stops basically that constructor who causes because unexpected factors such as foot slip falls the foundation ditch, but is not fit for carrying out when large-scale foundation ditch is excavated, stops the protection to the grit that the pit wall falls down thereby prevents the danger that personnel in the pit was injured by the grit.

Disclosure of Invention

The utility model aims to provide a foundation pit excavation protection structure which can prevent sand and gravel falling from the pit wall from being blocked and protected when large foundation pit excavation is carried out, so that the danger that personnel in the pit are injured by the sand and gravel is prevented.

The aim of the utility model is achieved by the following technical scheme: the utility model provides a foundation ditch excavation protective structure, includes prop stand and fixed connection at the square frame at prop stand top, evenly rotate along the circumferencial direction on the square frame and be connected with a plurality of bracing pieces, every the bottom of bracing piece is fixedly connected with a supporting seat respectively.

Each supporting seat is made of stainless steel.

The outer side surface and the bottom surface of each supporting seat are rough surfaces.

The bottom of the strut frame is provided with a disc with the diameter larger than that of the upper side.

The inside sliding connection of prop frame has the lift seat, and the middle part of lift seat rotates and is connected with the drilling string.

Drawings

The utility model will be described in further detail with reference to the accompanying drawings and detailed description.

FIG. 1 is a schematic view of a portion of the structure of a column rest of the present utility model;

FIG. 2 is a schematic cross-sectional view of a portion of the structure of a column rest of the present utility model;

FIG. 3 is a schematic view of a portion of a support base of the present utility model;

FIG. 4 is a schematic view showing a part of the structure of the support bar of the present utility model;

FIG. 5 is a schematic view of a portion of the structure of a displacement plate of the present utility model;

fig. 6 and 7 are schematic views of the overall structure of the present utility model.

In the figure: a column holder 101; square frame 102; a lifting base 103; a drill string 104; a motor 105; a support base 201; a support bar 202; a displacement plate 301; the electric putter 302.

Detailed Description

This part works according to what is expressed in fig. 1-7: when large-scale foundation ditch is excavated, thereby to the grit that the pit wall falls when being convenient for excavate stop the protection, thereby prevent the danger that personnel was injured by the grit in the pit, during the use, at first place the strut frame 101 in the middle part of required excavation foundation ditch, pass through a welded fastening square frame 102 at the top of strut frame 101, and rotate respectively in square frame 102's front and back both sides and left and right sides and connect a bracing piece 202 that is used for carrying out the location to supporting seat 201, and then when the foundation ditch excavates through strut frame 101 all around supporting seat 201 to the grit on the pit wall stop the danger that personnel was injured by the grit in the pit.

This part works according to what is expressed in fig. 1-7: so that each supporting seat 201 is made of stainless steel material, the supporting stability of each supporting seat 201 to the supporting seat 201 by means of pit wall sand is improved.

This part works according to what is expressed in fig. 1-7: the outer side surface and the bottom surface of each supporting seat 201 are rough surfaces, so that friction between each supporting seat 201 and the inner wall of the foundation pit is improved.

This part works according to what is expressed in fig. 1-7: making the diameter of the bottom disc of column holder 101 larger than the upper side of column holder 101 facilitates improving the stability of column holder 101.

The inside sliding connection of strut frame 101 has lift seat 103, and the middle part of lift seat 103 rotates and is connected with drilling string 104.

The bottom of the drill string 104 is uniformly provided with a plurality of grooves along the circumferential direction.

The top fixedly connected with motor 105 of drilling string 104, motor 105 fixed connection is at the middle part of lifting seat 103.

A handle is fixedly connected to the rear side of the lifting seat 103.

This part works according to what is expressed in fig. 1-7: in order to improve the stability at the middle part of strut 101 and foundation ditch, during the use, when the manual work is grabbed and is located lifting seat 103 rear side handle, driving motor 105 makes the drilling string 104 that is located the lifting seat 103 middle part rotatory, and then the lifting seat 103 of downward movement makes rotatory drilling string 104 bore into the foundation ditch middle part, improves the stability between strut 101 and the foundation ditch, and in order to be convenient for improve the efficiency that drilling string 104 bore into the foundation ditch middle part for drilling string 104 bottom circumferencial direction evenly is equipped with a plurality of recesses.

The top of each supporting seat 201 is respectively connected with a shifting plate 301 in a rotating way, the inner side of each shifting plate 301 is respectively connected with a movable end of an electric push rod 302 in a rotating way, and the fixed end of each electric push rod 302 is respectively connected with the middle part of each supporting rod 202 in a rotating way.

The outer surface of each of the deflection plates 301 is roughened.

This part works according to what is expressed in fig. 1-7: in order to be convenient for prevent that the grit that is located foundation ditch outside top from falling and injuring inside constructor smash, during the use, drive every electric putter 302 makes every electric putter 302 activity epaxial shifting board 301 to the outside expansion to laminate to the subaerial in foundation ditch inside pit wall top outside, prevent that the grit from causing danger such as injuring inside constructor to smash under.

Claims

1. The utility model provides a foundation ditch excavation protective structure, includes strut frame (101) and fixed connection square frame (102) at strut frame (101) top, its characterized in that: a plurality of support rods (202) are uniformly connected to the square frame (102) in a rotating mode along the circumferential direction, and a support seat (201) is fixedly connected to the bottom of each support rod (202) respectively.

2. The protective structure of claim 1, wherein: each supporting seat (201) is made of stainless steel.

3. The protective structure of claim 1, wherein: the outer side surface and the bottom surface of each supporting seat (201) are rough surfaces.

4. The protective structure of claim 1, wherein: the bottom of the strut stand (101) is provided with a disc with the diameter larger than that of the upper side.

5. The protective structure of claim 4, wherein: the inner part of the strut frame (101) is connected with a lifting seat (103) in a sliding manner, and the middle part of the lifting seat (103) is connected with a drill column (104) in a rotating manner.

6. The protective structure of claim 5, wherein: the bottom of the drill string (104) is uniformly provided with a plurality of grooves along the circumferential direction.

7. The protective structure of claim 6, wherein: the top of the drill string (104) is fixedly connected with a motor (105), and the motor (105) is fixedly connected to the middle part of the lifting seat (103).

8. The protective structure of claim 7, wherein: the rear side of the lifting seat (103) is fixedly connected with a handle.

9. The protective structure of claim 8, wherein: the top of each supporting seat (201) is respectively connected with a shifting plate (301) in a rotating mode, the inner side of each shifting plate (301) is respectively connected with a movable end of an electric push rod (302) in a rotating mode, and the fixed end of each electric push rod (302) is respectively connected to the middle of each supporting rod (202) in a rotating mode.

10. The protective structure of claim 9, wherein: the outer side surface of each deflection plate (301) is a rough surface.