CN212742559U

CN212742559U - Safety protection device for deep foundation pit excavation

Info

Publication number: CN212742559U
Application number: CN202021085878.7U
Authority: CN
Inventors: 张毅; 王文聪; 张克华; 俱东洋; 陈康
Original assignee: CCCC Third Highway Engineering Co Ltd
Current assignee: Second Engineering Co Ltd Of Cccc Third Highway Engineering Co ltd
Priority date: 2020-06-13
Filing date: 2020-06-13
Publication date: 2021-03-19
Anticipated expiration: 2030-06-13

Abstract

The utility model discloses a safety device for deep basal pit excavation, including pre-buried base, all rotate through the pivot all around at pre-buried base top and be connected with a backplate, four equal fixedly connected with installation pieces in one side that the backplate is close to each other, the inner wall of installation piece rotates and is connected with first round pin axle, and the one end of first round pin axle runs through the installation piece and extends to the outside of installation piece, and the fixed surface of first round pin axle is connected with branch, and the one end that the installation piece was kept away from to branch is rotated through second round pin axle and is connected with the turning block, the utility model relates to a deep basal pit protection technical field. This a safety device for deep basal pit excavation, the backup pad is rotatable arbitrary angle, protects the foundation ditch according to the foundation ditch shape, through the setting of installation piece, first round pin axle, branch, turning block, fastening bolt, screw hole, can fix a position the backup pad, has increased the stability of branch through setting up of set screw and locating hole, and the protecting effect is better.

Description

Safety protection device for deep foundation pit excavation

Technical Field

The utility model relates to a deep basal pit protection technical field specifically is a safety device for deep basal pit excavation.

Background

The building construction refers to production activities in the engineering construction implementation stage, is the construction process of various buildings, and also can be a process of changing various lines on a design drawing into a real object at a specified place. The method comprises foundation engineering construction, main structure construction, roofing engineering construction, decoration engineering construction and the like. The construction site is called as a building construction site or construction site, also called as a construction site, deep foundation pit excavation is required during building construction, and the foundation pit engineering mainly comprises foundation pit supporting system design and construction and earthwork excavation and is system engineering with strong comprehensiveness. It requires close cooperation between geotechnical engineering and structural engineering technicians. The foundation pit supporting system is a temporary structure and is not needed after the construction of underground engineering is finished.

The deep foundation pit refers to an engineering with an excavation depth of more than 5 meters or more than three layers of basements, or a depth of less than 5 meters, but complicated geological conditions, surrounding environments and underground pipelines, when earthwork excavation is carried out, a neighboring building or a structure should be prevented from collapsing, an existing deep foundation pit safety protection device generally cannot protect the foundation pit according to the shape of the foundation pit, the protection effect is poor, and certain potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a safety device for deep basal pit excavation has solved and can not protect the foundation ditch according to the shape of foundation ditch, and the protecting effect is relatively poor, has the problem of certain potential safety hazard.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a safety protection device for deep foundation pit excavation comprises an embedded base, wherein the periphery of the top of the embedded base is rotatably connected with supporting and protecting plates through rotating shafts, one sides of the four supporting and protecting plates, which are close to each other, are fixedly connected with mounting blocks, the inner wall of the mounting block is rotatably connected with a first pin shaft, one end of the first pin shaft penetrates through the mounting block and extends to the outside of the mounting block, a supporting rod is fixedly connected to the surface of the first pin shaft, one end of the supporting rod, far away from the mounting block, is rotatably connected with a rotating block through a second pin shaft, the inner wall of the rotating block is in threaded connection with a fastening bolt, the top of the embedded base is provided with a threaded hole matched with the fastening bolt, the top threaded connection of installation piece has set screw, set screw's bottom runs through installation piece, first round pin axle in proper order and extends to the inside of first round pin axle, the locating hole with set screw looks adaptation is seted up on the surface of first round pin axle.

Preferably, the top of the embedded base is provided with a cross-shaped drainage groove, the bottom of the embedded base is provided with a drainage hole, and the drainage hole is communicated with the cross-shaped drainage groove.

Preferably, the outer side of the supporting and protecting plate is rotatably connected with a pre-embedded rod through a rotating shaft, and one end, far away from the supporting and protecting plate, of the pre-embedded rod is fixedly connected with a first pre-embedded column.

Preferably, the surface of the first embedded column is provided with an installation groove, and the inner wall of the installation groove is slidably connected with a sliding plate.

Preferably, one side of the sliding plate is fixedly connected with an arc-shaped block, and one side of the arc-shaped block, which is far away from the sliding plate, penetrates through the first embedded column and extends to the outside of the first embedded column.

Preferably, the other side of the sliding plate is fixedly connected with a return spring, one end of the return spring, which is far away from the sliding plate, is fixedly connected with the inner wall of the mounting groove, and the bottom of the embedded base is fixedly connected with a second embedded column.

Advantageous effects

The utility model provides a safety device for deep basal pit excavation. Compared with the prior art, the method has the following beneficial effects:

(1) the safety protection device for deep foundation pit excavation is characterized in that the periphery of the top of a pre-buried base is rotatably connected with supporting and protecting plates through rotating shafts, one sides of the four supporting and protecting plates, which are close to each other, are fixedly connected with mounting blocks, the inner walls of the mounting blocks are rotatably connected with first pin shafts, one ends of the first pin shafts penetrate through the mounting blocks and extend to the outer parts of the mounting blocks, the surfaces of the first pin shafts are fixedly connected with supporting rods, one ends of the supporting rods, which are far away from the mounting blocks, are rotatably connected with rotating blocks through second pin shafts, fastening bolts are in threaded connection with the inner walls of the rotating blocks, threaded holes matched with the fastening bolts are formed in the top of the pre-buried base, positioning screws are in threaded connection with the top of the mounting blocks, the bottom ends of the positioning screws sequentially penetrate through the mounting blocks and the first pin shafts and extend to the inner parts, the foundation pit is protected according to the shape of the foundation pit, the supporting plate can be positioned through the arrangement of the mounting block, the first pin shaft, the supporting rod, the rotating block, the fastening bolt and the threaded hole, the stability of the supporting rod is improved through the arrangement of the positioning screw and the positioning hole, and the protection effect is good.

(2) This a safety device for deep basal pit excavation, it is connected with the embedded pole to rotate through the pivot in the outside of backplate, the embedded pole is kept away from the first pre-buried post of one end fixedly connected with of backplate, the mounting groove has been seted up on the surface of first pre-buried post, the inner wall sliding connection of mounting groove has the sliding plate, one side fixedly connected with arc piece of sliding plate, one side that the sliding plate was kept away from to the arc piece runs through first pre-buried post and extends to the outside of first pre-buried post, the opposite side fixedly connected with reset spring of sliding plate, the one end of sliding plate and the inner wall fixed connection of mounting groove are kept away from to reset spring, setting through the arc piece, increase the stability of first pre-buried post, prevent that first pre-buried post from droing, the stability of supporting plate has further been increased, through reset spring, the mounting groove, the setting of sliding.

Drawings

FIG. 1 is a main sectional view of the structure of the present invention;

fig. 2 is a top view of the pre-buried base structure of the present invention;

FIG. 3 is a cross-sectional view of the mounting block structure of the present invention;

fig. 4 is a cross-sectional view of a first embedded column structure of the present invention;

fig. 5 is a front view of the structure of the present invention.

In the figure: 1-pre-buried base, 2-supporting plate, 3-mounting block, 4-first pin shaft, 5-supporting rod, 6-second pin shaft, 7-rotating block, 8-fastening bolt, 9-threaded hole, 10-positioning screw, 11-positioning hole, 12-cross drainage groove, 13-drainage hole, 14-pre-buried rod, 15-first pre-buried column, 16-mounting groove, 17-sliding plate, 18-arc block, 19-reset spring and 20-second pre-buried column.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the safety protection device for deep foundation pit excavation comprises a pre-buried base 1, wherein all the peripheries of the top of the pre-buried base 1 are rotatably connected with supporting plates 2 through rotating shafts, one side of each of the four supporting plates 2, which is close to each other, is fixedly connected with an installation block 3, the inner wall of the installation block 3 is rotatably connected with a first pin shaft 4, one end of each first pin shaft 4 penetrates through the installation block 3 and extends to the outside of the installation block 3, a supporting rod 5 is fixedly connected to the surface of each first pin shaft 4, one end, far away from the installation block 3, of each supporting rod 5 is rotatably connected with a rotating block 7 through a second pin shaft 6, a fastening bolt 8 is in threaded connection with the inner wall of each rotating block 7, a plurality of threaded holes 9 matched with the fastening bolts 8 are formed in the top of the pre-buried base 1, the rotating blocks 7 are positioned in a matched mode with the fastening bolts 8, positioning screws 10 are, The first pin shaft 4 extends into the first pin shaft 4, a plurality of positioning holes 11 matched with the positioning screws 10 are formed in the surface of the first pin shaft 4 and matched with the positioning screws 10 to facilitate positioning of the first pin shaft 4 and further positioning of the support rod 5 and increase stability of the support rod 5, a cross-shaped drainage groove 12 is formed in the top of the embedded base 1, a drainage hole 13 is formed in the bottom of the embedded base 1 and matched with the cross-shaped drainage groove 12 to facilitate drainage of a device, the drainage hole 13 is communicated with the cross-shaped drainage groove 12, the outer side of the support plate 2 is rotatably connected with an embedded rod 14 through a rotating shaft, one end, away from the support plate 2, of the embedded rod 14 is fixedly connected with a first embedded column 15, an installation groove 16 is formed in the surface of the first embedded column 15, a sliding plate 17 is slidably connected to the inner wall of the installation groove 16, and an arc-shaped block, increase the stability of first pre-buried post 15 in soil, one side that sliding plate 17 was kept away from to arc piece 18 runs through first pre-buried post 15 and extends to the outside of first pre-buried post 15, sliding plate 17's opposite side fixedly connected with reset spring 19, it slides along mounting groove 16 is inside to be convenient for cooperate sliding plate 17 to drive arc piece 18, be convenient for first pre-buried post 15's installation, reset spring 19 keeps away from the one end of sliding plate 17 and the inner wall fixed connection of mounting groove 16, pre-buried base 1's the pre-buried post 20 of bottom fixedly connected with second, increase pre-buried base 1's stability.

When in work, the second embedded column 20 is embedded into the bottom of the foundation pit, the supporting and protecting plate 2 is rotated according to the inclination angle of the foundation pit, the first embedded column 15 is embedded into the soil on the side wall of the foundation pit through the embedded rod 14, and in the embedding process, due to the soil resistance, the arc-shaped block 18 is extruded to further drive the sliding plate 17 to slide along the inner wall of the mounting groove 16, after the mounting is finished, under the elastic force of the return spring 19, the arc-shaped block 18 is reset, the first pre-buried column 15 is prevented from being separated from the soil, the stability of the first pre-buried column is improved, then the angle of the supporting rod 5 is adjusted according to the inclination angle of the supporting plate 2, the rotating block 7 moves at the bottom of the embedded base 1, the rotating block 7 is further positioned by the matching of the fastening bolt 8 and the threaded hole 9, in order to increase the stability of the supporting rod 5, the positioning screw 10 is screwed, so that the positioning screw 10 is matched with the positioning hole 11 to prevent the support rod 5 from rotating, and at the moment, the foundation pit protection work is finished.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a safety device for deep basal pit excavation, includes pre-buried base (1), its characterized in that: the periphery of the top of the embedded base (1) is rotatably connected with supporting plates (2) through a rotating shaft, one side, close to each other, of each of the four supporting plates (2) is fixedly connected with an installation block (3), the inner wall of the installation block (3) is rotatably connected with a first pin shaft (4), one end of each first pin shaft (4) penetrates through the installation block (3) and extends to the outside of the installation block (3), a support rod (5) is fixedly connected to the surface of each first pin shaft (4), one end, far away from the installation block (3), of each support rod (5) is rotatably connected with a rotating block (7) through a second pin shaft (6), fastening bolts (8) are in threaded connection with the inner wall of each rotating block (7), threaded holes (9) matched with the fastening bolts (8) are formed in the top of the embedded base (1), and positioning screws (10) are in threaded connection with the top of the installation block, the bottom end of the positioning screw (10) penetrates through the mounting block (3) and the first pin shaft (4) in sequence and extends to the inside of the first pin shaft (4), and a positioning hole (11) matched with the positioning screw (10) is formed in the surface of the first pin shaft (4).

2. The safety protection device for deep foundation pit excavation according to claim 1, wherein: the water-saving type water-saving embedded base is characterized in that a cross-shaped water drainage groove (12) is formed in the top of the embedded base (1), a water drainage hole (13) is formed in the bottom of the embedded base (1), and the water drainage hole (13) is communicated with the cross-shaped water drainage groove (12).

3. The safety protection device for deep foundation pit excavation according to claim 1, wherein: the outer side of the supporting plate (2) is rotatably connected with a pre-embedded rod (14) through a rotating shaft, and the pre-embedded rod (14) is far away from a first pre-embedded column (15) at one end of the supporting plate (2).

4. The safety protection device for deep foundation pit excavation according to claim 3, wherein: the surface of the first embedded column (15) is provided with an installation groove (16), and the inner wall of the installation groove (16) is connected with a sliding plate (17) in a sliding manner.

5. The safety protection device for deep foundation pit excavation according to claim 4, wherein: one side of the sliding plate (17) is fixedly connected with an arc-shaped block (18), and one side, far away from the sliding plate (17), of the arc-shaped block (18) penetrates through the first embedded column (15) and extends to the outside of the first embedded column (15).

6. The safety protection device for deep foundation pit excavation according to claim 4, wherein: the other side of the sliding plate (17) is fixedly connected with a return spring (19), one end, far away from the sliding plate (17), of the return spring (19) is fixedly connected with the inner wall of the mounting groove (16), and the bottom of the embedded base (1) is fixedly connected with a second embedded column (20).