CN220202689U

CN220202689U - Novel foundation pit excavation protection structure

Info

Publication number: CN220202689U
Application number: CN202321024619.7U
Authority: CN
Inventors: 刘风; 冯梅; 李学良; 葛勖; 姚洁; 郑武
Original assignee: Fujian Rongsheng Construction And Development Co ltd
Current assignee: Fujian Rongsheng Construction And Development Co ltd
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-12-19
Anticipated expiration: 2033-05-04

Abstract

The utility model discloses a novel foundation pit excavation protection structure, which belongs to the technical field of foundation pit construction and comprises a base plate which is arranged at the top of a foundation pit along the horizontal direction, wherein a control switch box is arranged at the top end of the base plate, upper protection supporting mechanisms are arranged at the two end parts of the base plate, a fixed shell is fixedly connected with the bottom end of the base plate along the vertical direction, a lifting plate is connected with the inner side of the bottom of the fixed shell along the vertical direction, a second tooth is arranged on one outer wall of the lifting plate along the vertical direction, and a second protection shell is fixedly connected with the outer side of the outer wall of the bottom of the fixed shell, which is close to the second tooth. The upper protection supporting mechanism and the lower protection supporting mechanism provided by the utility model can play a role in supporting the foundation pit when in use, and can be used for adjusting when the width of the foundation pit is increased or the foundation pit with different widths is used, so that the protection structure is suitable for adjusting and using the foundation pit with different widths, and the application range is wide.

Description

Novel foundation pit excavation protection structure

Technical Field

The utility model relates to the technical field of foundation pit construction, in particular to a novel 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, and temporary supporting, reinforcing, protecting and groundwater control measures are needed for the foundation pit in order to protect the safety of the construction of an underground main structure and the surrounding environment of the foundation pit. The common supporting mode comprises a steel sheet pile supporting method, wherein positioning and scribing are firstly carried out according to a construction range, after steel sheet piles are driven into soil body along a construction axis one by one through a pile driving and pulling machine, horizontal supports are arranged on the steel sheet piles, foundation pit excavation is carried out, after the foundation pit excavation is carried out to a designed elevation, retaining walls and foundation pit back covers are poured, and finally the steel sheet piles are removed.

The utility model discloses a Chinese patent with publication number of CN218466552U, which relates to the technical field of foundation pit construction and comprises a foundation pit and a baffle, wherein the baffle is arranged in the foundation pit, a supporting mechanism for supporting the baffle is arranged on the baffle, the supporting mechanism comprises a fixed block and a connecting block, the fixed block is arranged at one end of the baffle away from the bottom of the foundation pit and is arranged along the width direction of the foundation pit, a driving block is rotationally connected on the fixed block, a driving rod is in threaded connection with the driving block, the driving rod is rotationally connected with the connecting block, a driving assembly for driving the driving block to rotate is arranged on the fixed block, and a supporting assembly for supporting the baffle is arranged on the connecting block. The application has the effect of adjusting the baffle to support the pit wall of the foundation pit according to the depth of the foundation pit.

The adjusting structure designed by the above patent aims at the foundation pit support suitable for the bottom, but in practice, the fixed block structure with the top playing a limiting role is a fixed structure, the length is also a fixed structure, when the width of the foundation pit changes, the fixed block at the top is changed into a suspension phenomenon due to the fact that the length is unchanged, the technology plays a role of reinforcing the supporting force when the depth of the foundation pit changes, and the technology cannot be suitable for the change of the width of the foundation pit, and has a limited application range.

Disclosure of Invention

Therefore, the utility model provides a novel foundation pit excavation protection structure, which aims to solve the technical problems in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a novel foundation ditch excavation protective structure, includes along installing the base plate at the foundation ditch top in the horizontal direction, the top of base plate is provided with the control switch box, and the both ends portion of base plate all is provided with protection supporting mechanism, and the bottom of base plate is along vertical direction upper fixedly connected with fixed shell, the bottom inboard of fixed shell is connected with the lifter plate along vertical direction, an outer wall of lifter plate is provided with the second insection along vertical direction, the bottom outer wall of fixed shell is close to the outside fixedly connected with second protective housing at second insection place, the internally mounted of second protective housing has the second fluted roller that is connected with second insection meshing, and the second servo motor of drive second fluted roller pivoted is installed to the outer wall of second protective housing, the bottom both outer walls of fixed shell and lifter plate all are provided with protection supporting mechanism down.

As a further improvement of the technical scheme of the utility model, the upper protection supporting mechanism comprises a telescopic plate connected to the inner side of the end part of the base plate, the end part of the telescopic plate is fixedly connected with a first supporting plate, the upper surface of the telescopic plate is provided with first insections, the end part of the base plate is fixedly connected with a first protection shell above the telescopic plate, a first toothed roller meshed with the first insections is arranged in the first protection shell, a first servo motor for driving the first toothed roller to rotate is arranged on the outer wall of the first protection shell, a clamping toothed plate is arranged above the first toothed roller in the first protection shell, a connecting rod is connected to the top end of the clamping toothed plate in the vertical direction, the top end of the connecting rod extends to the upper part of the first protection shell and is fixedly connected with a toggle plate, and a first spring is connected between the inner wall of the top of the first protection shell and the top of the clamping toothed plate.

As a further improvement of the technical scheme of the utility model, the inner part of the base plate is provided with a transverse expansion groove corresponding to the outer part of the expansion plate along the horizontal direction, and the inner part of the first protective shell is communicated with the inner part of the transverse expansion groove.

As a further improvement of the technical scheme of the utility model, the bottom of the clamping toothed plate is provided with a tooth slot which is matched and clamped with the first toothed roller structure, and the upper end and the lower end of the first spring are welded with the inner wall of the top of the first protective shell and the top of the clamping toothed plate.

As a further improvement of the technical scheme of the utility model, the second protective shell is fixedly connected with the outer wall of the fixed shell through screws, and a vertical telescopic groove is formed in the inner part of the fixed shell corresponding to the outer part of the lifting plate along the vertical direction.

As a further improvement of the technical scheme of the utility model, the lower protection supporting mechanism comprises a transverse plate fixedly connected to the outer wall of the bottom of the fixed shell in the horizontal direction and a lifting transverse plate fixedly connected to the outer wall of the bottom of the lifting plate in the horizontal direction, the end part of the transverse plate is connected with the casing, one end part of the casing is fixedly connected with the second supporting plate in the vertical direction, and a triangular prism block is fixedly connected between the outer wall of the second supporting plate and the bottom of the casing.

As a further improvement of the technical scheme of the utility model, one end of the transverse plate extends to the inside of the casing and is fixedly connected with the movable plate, a movable cavity is arranged in the inside of the casing corresponding to the outside of the movable plate along the horizontal direction, and a second spring is connected between the end of the movable plate and the inner wall of the movable cavity.

As a further improvement of the technical scheme of the utility model, the end part of the lifting transverse plate extends to the outer wall of the triangular prism block to be fixedly connected with the movable clamping block, the outer wall of the triangular prism block is provided with a limit chute with an inclined structure corresponding to the outer part of the movable clamping block, and the contact surface between the top of the movable clamping block and the inner wall of the limit chute is provided with a plurality of balls.

The utility model has the following advantages:

1. the upper protection supporting mechanism can play a supporting role on the top of the foundation pit when the foundation pit is used, can be used for adjusting when the width of the foundation pit is increased or the foundation pit with different widths is used, and firstly, the clamping toothed plate is driven to ascend by pulling the stirring plate upwards to separate from the first toothed roller when the foundation pit is operated, the first spring is in a compressed state, then, the first servo motor is controlled to drive the first toothed roller to rotate, the expansion plate is conveniently driven to expand and contract in the base plate, after the expansion plate is adjusted to a required position, the first servo motor is stopped, then, the stirring plate is loosened, and under the action of the first spring, the clamping toothed plate is clamped into the first toothed roller at the corresponding position to realize locking, so that the stability of the expansion plate after adjustment is improved;

2. the lower protection supporting mechanism who sets up is used for playing the support protection effect to the middle part and the bottom of foundation ditch when using, during the operation, the lower protection supporting mechanism who sets up also can adapt to the foundation ditch of different width and use, when using, through the operation control lifter plate of control third servo motor, conveniently adjust the lifter plate and go up and down in the vertical direction, the cover shell receives the spacing position on the horizontal direction that keeps of diaphragm unchanged, and make second fagging and triangular prism piece keep the position on the horizontal direction unchanged, when the lifting plate of control goes up and down, the activity fixture block of lifter plate tip is at the spacing spout internal movement of triangular prism piece outer wall, and make the diaphragm change in the inside extension length of cover shell, and then the second fagging of side moves in the horizontal direction, realize the support protection to the foundation ditch, can change or use to the foundation ditch of different width, application scope is wide.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the upper shield support mechanism of the present utility model;

FIG. 3 is an enlarged view of portion A of FIG. 1 in accordance with the present utility model;

FIG. 4 is an enlarged view of portion B of FIG. 2 in accordance with the present utility model;

FIG. 5 is a schematic view of the structure of a first toothed roller according to the present utility model;

FIG. 6 is a cross-sectional view showing the connection of the lifter plate and the fixed housing in the present utility model;

FIG. 7 is a cross-sectional view of the lower guard support mechanism of the present utility model;

in the figure: 1. a substrate; 2. a control switch box; 3. a telescoping plate; 4. a first stay plate; 5. a first insection; 6. a first protective shell; 7. a first toothed roller; 8. a first servo motor; 9. a tooth clamping plate; 10. a connecting rod; 11. a toggle plate; 12. a first spring; 13. a fixed case; 14. a lifting plate; 15. a cross plate; 16. a casing; 17. a second stay plate; 18. triangular prism blocks; 19. lifting the transverse plate; 20. a second insection; 21. a second protective shell; 22. a second toothed roller; 23. a second servo motor; 24. a movable plate; 25. a movable cavity; 26. a second spring; 27. a movable clamping block; 28. limiting sliding grooves; 101. a transverse expansion groove; 131. a vertical expansion groove.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to the description and drawings 1-7, a novel foundation pit excavation protection structure is shown, including installing the base plate 1 at the foundation ditch top along the horizontal direction, the top of base plate 1 is provided with control switch box 2, and the both ends of base plate 1 all are provided with protection supporting mechanism, and the bottom of base plate 1 is along vertical direction fixedly connected with fixed shell 13, the bottom inboard of fixed shell 13 is connected with lifter plate 14 along vertical direction, an outer wall of lifter plate 14 is provided with second insection 20 along vertical direction, the outside fixedly connected with second protecting crust 21 at the bottom outer wall of fixed shell 13 is close to second insection 20 place, the internally mounted of second protecting crust 21 has the second fluted roller 22 that meshes with second insection 20 and is connected, and the second servo motor 23 of drive second fluted roller 22 pivoted is installed to the outer wall of second protecting crust 21, both outer walls of bottom of fixed shell 13 and lifter plate 14 all are provided with protection supporting mechanism down.

As shown in fig. 1, go up protection supporting mechanism and including connecting the expansion plate 3 inboard at base plate 1 tip, the tip fixedly connected with first fagging 4 of expansion plate 3, and the upper surface of expansion plate 3 is provided with first insection 5, the tip of base plate 1 is located the first protection shell 6 of top fixedly connected with of expansion plate 3, the internally mounted of first protection shell 6 has the first toothed roll 7 that is connected with first insection 5 meshing, and the outer wall mounting of first protection shell 6 drives first toothed roll 7 pivoted first servo motor 8, the top of first toothed roll 7 is located the inside of first protection shell 6 and is provided with latch board 9, the top of latch board 9 is connected with connecting rod 10 along vertical direction, the top of connecting rod 10 extends to the top fixedly connected with toggle plate 11 of first protection shell 6, be connected with first spring 12 between the top inner wall of first protection shell 6 and the top of latch board 9, the inside of base plate 1 corresponds the outside of expansion plate 3 along the horizontal direction and is provided with horizontal flexible groove 101, the inside of first protection shell 6 and the inside of first protection shell 9 and the inside of latch board 7 are connected with the top of first end of a latch board 101 and the first end of a pair of side-to-up connection mode of latch board, the top of the first end of the latch board is welded connection between the first end of the first toothed roll 101.

The upper protection supporting mechanism that above-mentioned set up can play the supporting role to the top of foundation ditch when using, can be when foundation ditch width increases or when using to different width foundation ditch, adjust the processing, during the operation, at first, drive card pinion rack 9 through the upward pulling and rise and break away from first pinion rack 7, first spring 12 is compressed state this moment, then, control first servo motor 8 drives first pinion rack 7 and rotates, conveniently drive expansion plate 3 and stretch out and draw back in the inside of base plate 1, after adjusting to the position of needs, shut down first servo motor 8, then, loosen and stir board 11, under the effect of first spring 12, realize locking on card pinion rack 9 card goes into the first pinion rack 7 of corresponding position, stability after the expansion plate 3 is adjusted is improved.

As shown in fig. 1, the second protecting shell 21 is fixedly connected with the outer wall of the fixing shell 13 through screws, and a vertical telescopic slot 131 is formed in the fixing shell 13 along the vertical direction corresponding to the outer portion of the lifting plate 14, so that the lifting plate 14 can conveniently stretch out and draw back in the fixing shell 13.

As shown in fig. 1, the lower protection support mechanism comprises a transverse plate 15 fixedly connected to the outer wall of the bottom of the fixed shell 13 along the horizontal direction and a lifting transverse plate 19 fixedly connected to the outer wall of the bottom of the lifting plate 14 along the horizontal direction, the end part of the transverse plate 15 is connected with a casing 16, one end part of the casing 16 is fixedly connected with a second supporting plate 17 along the vertical direction, a triangular prism block 18 is fixedly connected between the outer wall of the second supporting plate 17 and the bottom of the casing 16, one end of the transverse plate 15 extends to the inner part of the casing 16 and is fixedly connected with a movable plate 24, a movable cavity 25 is arranged in the inner part of the casing 16 corresponding to the outer part of the movable plate 24 along the horizontal direction, a second spring 26 is connected between the end part of the movable plate 24 and the inner wall of the movable cavity 25, the end part of the lifting transverse plate 19 extends to the outer wall of the triangular prism block 18 and is fixedly connected with a movable clamping block 27, the outer wall of the triangular prism block 18 is corresponding to the outer part of the movable clamping block 27 is provided with a limiting chute 28 of an inclined structure, and the top of the movable clamping block 27 is provided with a plurality of balls.

The lower protection supporting mechanism who sets up is used for playing the support protection effect to the middle part and the bottom of foundation ditch when using, during the operation, the lower protection supporting mechanism who sets up can adapt to the foundation ditch of different width equally and adjust the use, when using, through the operation control lifter plate 14 of control third servo motor 23, conveniently adjust the lifter plate 19 and go up and down in vertical direction, the cover shell 16 receives the spacing position on the horizontal direction that keeps of diaphragm 15 unchanged, and make second fagging 17 and triangular prism piece 18 keep the position on the horizontal direction unchanged, when the lifter plate 14 of control goes up and down, the movable fixture block 27 of lifter plate 19 tip is at the spacing spout 28 internal movement of triangular prism piece 18 outer wall, and make diaphragm 15 change at the inside extension length of cover shell 16, second fagging 17 that advances instead moves in the horizontal direction, realize the support protection to the foundation ditch, can change or use to the foundation ditch of different width, application scope is wide.

While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

The terms such as "upper", "lower", "left", "right", "middle" and the like are also used in the present specification for convenience of description, but are not intended to limit the scope of the present utility model, and the changes or modifications of the relative relationship thereof are considered to be within the scope of the present utility model without substantial modification of the technical content.

Claims

1. Novel foundation ditch excavation protective structure, its characterized in that: including installing base plate (1) at the foundation ditch top along the horizontal direction, the top of base plate (1) is provided with control switch box (2), and the both ends portion of base plate (1) all is provided with protection supporting mechanism, and the bottom of base plate (1) is along vertical direction upper fixedly connected with fixed shell (13), the bottom inboard of fixed shell (13) is connected with lifter plate (14) along vertical direction, an outer wall of lifter plate (14) is provided with second insection (20) along vertical direction, the bottom outer wall of fixed shell (13) is close to outside fixedly connected with second protecting crust (21) at second insection (20) place, the internally mounted of second protecting crust (21) has second toothed roll (22) with second insection (20) looks meshing connection, and the outer wall of second protecting crust (21) installs second servo motor (23) of drive second toothed roll (22) pivoted, two outer walls of bottom of fixed shell (13) and lifter plate (14) all are provided with protection supporting mechanism down.

2. The novel foundation pit excavation protecting structure of claim 1, wherein: the upper protection supporting mechanism comprises a telescopic plate (3) connected to the inner side of the end part of a base plate (1), a first supporting plate (4) is fixedly connected to the end part of the telescopic plate (3), a first tooth pattern (5) is arranged on the upper surface of the telescopic plate (3), a first protection shell (6) is fixedly connected to the end part of the base plate (1) above the telescopic plate (3), a first tooth roller (7) meshed with the first tooth pattern (5) is arranged in the first protection shell (6), a first servo motor (8) for driving the first tooth roller (7) to rotate is arranged on the outer wall of the first protection shell (6), a tooth clamping plate (9) is arranged in the first protection shell (6), a connecting rod (10) is connected to the top end of the tooth clamping plate (9) in the vertical direction, a stirring plate (11) is fixedly connected to the top of the first protection shell (6) above the connecting rod (10), and a spring (12) is connected between the top of the first protection shell (6) and the first tooth plate (12).

3. The novel foundation pit excavation protecting structure of claim 2, wherein: the inside of base plate (1) corresponds the outside of expansion plate (3) and is provided with horizontal expansion groove (101) along the horizontal direction, the inside of first protecting crust (6) communicates with the inside of horizontal expansion groove (101).

4. The novel foundation pit excavation protecting structure of claim 2, wherein: the bottom of latch board (9) is provided with the tooth's socket with first fluted roller (7) structure assorted joint, the connected mode between upper and lower both ends of first spring (12) and the top inner wall of first protecting crust (6) and the top of latch board (9) is the welding.

5. The novel foundation pit excavation protecting structure of claim 1, wherein: the second protective shell (21) is fixedly connected with the outer wall of the fixed shell (13) through screws, and a vertical telescopic groove (131) is formed in the fixed shell (13) along the vertical direction corresponding to the outer portion of the lifting plate (14).

6. The novel foundation pit excavation protecting structure of claim 1, wherein: the lower protection supporting mechanism comprises a transverse plate (15) fixedly connected to the outer wall of the bottom of the fixed shell (13) along the horizontal direction and a lifting transverse plate (19) fixedly connected to the outer wall of the bottom of the lifting plate (14) along the horizontal direction, a casing (16) is connected to the end portion of the transverse plate (15), a second supporting plate (17) is fixedly connected to one end portion of the casing (16) along the vertical direction, and a triangular prism block (18) is fixedly connected between the outer wall of the second supporting plate (17) and the bottom of the casing (16).

7. The novel foundation pit excavation protecting structure of claim 6, wherein: one end of the transverse plate (15) extends to the inside of the casing (16) and is fixedly connected with a movable plate (24), a movable cavity (25) is formed in the inside of the casing (16) corresponding to the outside of the movable plate (24) along the horizontal direction, and a second spring (26) is connected between the end part of the movable plate (24) and the inner wall of the movable cavity (25).

8. The novel foundation pit excavation protecting structure of claim 7, wherein: the end of the lifting transverse plate (19) extends to the outer wall of the triangular prism block (18) to be fixedly connected with a movable clamping block (27), a limiting chute (28) of an inclined structure is arranged on the outer wall of the triangular prism block (18) corresponding to the outer portion of the movable clamping block (27), and a plurality of balls are arranged on the contact surface between the top of the movable clamping block (27) and the inner wall of the limiting chute (28).