Mounting and supporting device for civil construction foundation pit

Abstract

The utility model relates to the technical field of equipment for civil engineering construction, and discloses an installation supporting device for a civil engineering construction foundation pit, which comprises a plurality of supporting plates uniformly and tightly arranged on the side wall of the foundation pit along the circumferential direction, and further comprises an adjustable supporting structure, and the supporting plates in the foundation pit form a supporting wall together. The adjustable supporting structure fixes the supporting walls of different sizes on the side wall of the foundation pit on the inner sides of the supporting walls. Compared with the prior art, the supporting device has the advantages that when the supporting device is used, the size of the supporting device can be adjusted according to the size of a foundation pit, and therefore the supporting device can be suitable for supporting work of foundation pits with different sizes within a certain range and is higher in practicability; and 2, during use, the size of the adjustable supporting structure can be adjusted by rotating the rotating handle, so that the size of the adjustable supporting structure is adjusted, and the adjustment operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment for civil engineering construction, in particular to an installation and support device for a foundation pit in civil engineering construction. Background Art

[0002] In civil engineering construction operations, digging a foundation pit is an essential task. After the foundation pit is dug, a foundation pit support device needs to be used to support it to prevent the side wall of the foundation pit from collapsing.

[0003] Currently, existing foundation pit devices are generally assembled from pile foundation columns and support plates. Multiple support plates are arranged around the side wall of the foundation pit in a circumferential and uniformly tight manner. Then, multiple pile foundation columns are assembled into a "ri" - shaped structure (or "mu" - shaped structure, etc.) and installed and fixed inside the foundation pit, tightly abutting against each support plate, so that the support plate is closely attached to the side wall of the foundation pit to support and protect the foundation pit.

[0004] However, it is not difficult to see that after the existing foundation pit support device is assembled, it is generally of a fixed structure and cannot be adjusted according to the size of the foundation pit, and the effect that one foundation pit support device is applicable to foundation pits of different sizes cannot be achieved. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the above technical difficulties and provide an installation and support device for a foundation pit in civil engineering construction, which can adjust its own size according to the size of the foundation pit, so as to be applicable to foundation pits of different sizes within a certain range.

[0006] To solve the above technical problem, the technical solution provided by the utility model is as follows:

[0007] An installation and support device for a foundation pit in civil engineering construction includes support plates. Multiple support plates are arranged evenly and tightly along the circumference on the side wall of the foundation pit. It also includes an adjustable support structure. Each support plate in the foundation pit together forms a support wall, and the adjustable support structure fixes support walls of different sizes on the side wall of the foundation pit inside the support wall.

[0008] As an improvement, the adjustable support structure includes an outer straight tube, an inner straight tube, an outer L - shaped tube, and a bidirectional push - pull structure; multiple outer straight tubes, inner straight tubes, and outer L - shaped tubes are connected end to end in sequence to form a square frame structure. There are four outer L - shaped tubes, which are respectively located at the four corners of the square frame. There are four outer straight tubes, which are respectively located in the middle of the four sides of the square frame. There are eight inner straight tubes. One end of each inner straight tube is sleeved and fixed inside the corresponding outer L - shaped tube, and the remaining part is movably sleeved and fitted inside the corresponding outer straight tube. The two outer L - shaped tubes at the diagonal corners are connected by a bidirectional push - pull structure.

[0009] As an improvement, the bidirectional push-pull structure includes an internally threaded barrel, an externally threaded barrel and a turning handle; there are two internally threaded barrels arranged symmetrically with respect to the cross-section perpendicular to the central axis of the internally threaded barrel and located in the middle of the internally threaded barrel, and they are respectively threadedly sleeved on the inner side of the externally threaded barrel. A turning handle is fixed on the outer wall of the externally threaded barrel, and a plurality of turning handles are evenly arranged along the circumferential direction of the externally threaded barrel. Rotating the externally threaded barrel drives the two internally threaded barrels to move relatively or away from each other.

[0010] As an improvement, the two pipe bodies of the outer L-shaped barrel are fixedly connected by a diagonal support plate, and the internally threaded barrel at one end of the externally threaded barrel is fixedly connected to the diagonal support plate on the same side; the two bidirectional push-pull structures are arranged avoiding each other up and down. It is used to adjust the size of the adjustable support structure.

[0011] As an improvement, a placing plate fixed on the corresponding support plate is lapped on the lower sides of the outer straight barrel and the outer L-shaped barrel. The placing plate is a strip-shaped plate structure with an isosceles trapezoid end face; the distance between adjacent outer straight barrels and outer L-shaped barrels is less than the width of the support plate. This can effectively prevent the situation that some support plates are not resisted by the adjustable support structure.

[0012] The advantages of the present utility model compared with the prior art are as follows:

[0013] 1. When the present novelty is in use, it can adjust its own size according to the size of the foundation pit, so that it can be applicable to the support work of foundation pits with different sizes within a certain range, and the practicability is stronger.

[0014] 2. When the present novelty is in use, by rotating the turning handle, the size of the adjustable support structure can be adjusted, thereby adjusting the size of the present novelty itself, and the adjustment operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model.

[0016] Figure 2 is the Figure 1 partial structural schematic diagram of the present utility model.

[0017] Figure 3 is the Figure 2 partial structural schematic diagram of the present utility model.

[0018] Figure 4 is the Figure 3 partial structural schematic diagram of the present utility model.

[0019] As shown in the figure: 1. Support plate; 2. Outer straight barrel; 3. Inner straight barrel; 4. Outer L-shaped barrel; 5. Internally threaded barrel; 6. Externally threaded barrel; 7. Turning handle; 8. Diagonal support plate; 9. Placing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.

[0021] The following further elaborates on the present utility model in conjunction with the drawings.

[0022] An installation and support device for a civil engineering construction foundation pit, comprising:

[0023] Support plates 1, a plurality of support plates 1 are arranged uniformly and closely along the circumferential direction on the side wall of the foundation pit, and the support plates 1 in the foundation pit together form a support wall. As a preferred embodiment, the support plate 1 can be a support plate structure with a serpentine bending cross-section;

[0024] An adjustable support structure, including an outer straight tube 2, an inner straight tube 3, an outer L-shaped tube 4 and a bidirectional push-pull structure; a plurality of outer straight tubes 2, inner straight tubes 3 and outer L-shaped tubes 4 are connected end to end in sequence to form a square frame structure. There are four outer L-shaped tubes 4 and they are respectively located at the four corners of the square frame. There are four outer straight tubes 2 and they are respectively located in the middle of the four sides of the square frame. There are eight inner straight tubes 3, and after one end is sleeved and fixed inside the corresponding outer L-shaped tube 4, the remaining part is movably sleeved and fitted inside the corresponding outer straight tube 2;

[0025] The bidirectional push-pull structure includes an inner threaded tube 5, an outer threaded tube 6 and a turning handle 7; there are two inner threaded tubes 5 arranged symmetrically along the cross-section perpendicular to the central axis of the inner threaded tube 5 and located in the middle of the inner threaded tube 5, and they are respectively threadedly sleeved inside the outer threaded tube 6. A turning handle 7 is fixed on the outer wall of the outer threaded tube 6, and a plurality of turning handles 7 are uniformly arranged along the circumferential direction of the outer threaded tube 6. The two tube bodies of the outer L-shaped tube 4 are fixedly connected by a diagonal support plate 8, and one end of the inner threaded tube 5 located outside the outer threaded tube 6 is fixedly connected to the diagonal support plate 8 on the same side; the two bidirectional push-pull structures are arranged avoiding each other up and down;

[0026] The lower sides of the outer straight tube 2 and the outer L-shaped tube 4 are overlapped with a placing plate 9 fixed on the corresponding support plate 1. The placing plate 9 is a strip plate structure with an isosceles trapezoid end face; the distance between adjacent outer straight tubes 2 and outer L-shaped tubes 4 is less than the width of the support plate 1.

[0027] As a preferred embodiment, the cross-sections of the outer straight tube 2, the inner straight tube 3 and the outer L-shaped tube 4 perpendicular to the central axis are all closed-loop structures with serpentine bends.

[0028] In the specific implementation of this embodiment: as Figure 1 shown, after arranging a plurality of support plates 1 closely on the side wall of the foundation pit, the size of the adjustable support structure is adjusted in advance to be approximately (approximately means: slightly smaller than the support wall and can be successfully placed on the placing plate 9), then the adjustable support structure is lifted, placed on each placing plate 9, and then the handle 7 is rotated clockwise manually to drive the outer threaded tube 6 to rotate, thereby driving the corresponding two inner threaded tubes 5 to move away from each other, and the adjustable support structure slowly increases until it abuts against each support plate 1, realizing that the support wall protects the foundation pit.

[0029] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the spirit of the creation of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A support device for installation of a foundation pit for civil construction, comprising a support plate (1), wherein a plurality of support plates (1) are evenly and closely arranged along the circumferential direction on the side wall of the foundation pit, characterized in that: It also comprises an adjustable support structure, wherein the support plates (1) in the foundation pit together form a support wall, and the adjustable support structure fixes support walls of different sizes on the side wall of the foundation pit at the inner side of the support wall.

2. The installation and support device for foundation pit of civil construction according to claim 1, characterized in that: The adjustable support structure comprises an outer straight tube (2), an inner straight tube (3), an outer L-shaped tube (4) and a bidirectional push-pull structure; a plurality of outer straight tubes (2), inner straight tubes (3) and outer L-shaped tubes (4) are connected end to end in sequence to form a square frame structure; four outer L-shaped tubes (4) are provided and are respectively located at the four corners of the square frame; four outer straight tubes (2) are provided and are respectively located at the middle of the four sides of the square frame; eight inner straight tubes (3) are provided, and one end portion is sleeved and fixed on the inner side of the corresponding outer L-shaped tube (4), and the remaining portion is movably sleeved and fitted on the inner side of the corresponding outer straight tube (2); and two diagonally opposite outer L-shaped tubes (4) are connected via a bidirectional push-pull structure.

3. The installation and supporting device for foundation pit of civil construction according to claim 2 is characterized in that: The cross sections of the outer straight tube (2), the inner straight tube (3) and the outer L-shaped tube (4) perpendicular to the central axis are all serpentine-bent closed-loop structures.

4. The installation and support device for foundation pit of civil construction according to claim 2, characterized in that: The bidirectional push-pull structure comprises an internally threaded barrel (5), an externally threaded barrel (6) and a turning handle (7); the internally threaded barrel (5) is provided with two cross-sectional mirror images perpendicular to the central axis of the internally threaded barrel (5) and located in the middle of the internally threaded barrel (5), and is respectively threadedly sleeved on the inner side of the externally threaded barrel (6); a turning handle (7) is fixed on the outer wall of the externally threaded barrel (6), and a plurality of turning handles (7) are evenly arranged along the circumference of the externally threaded barrel (6).

5. The installation and supporting device for foundation pit of civil construction according to claim 4, characterized in that: The two sections of the outer L-shaped tube (4) are fixedly connected via a diagonal support plate (8), and one end of the inner threaded tube (5) located on the outer threaded tube (6) is fixedly connected to the diagonal support plate (8) on the same side; Two bidirectional push-pull structures are arranged to avoid each other up and down.

6. The installation and supporting device for foundation pit of civil construction according to claim 5, characterized in that: The outer straight tube (2) and the outer L-shaped tube (4) are overlapped with a mounting plate (9) fixed on the corresponding supporting plate (1), and the mounting plate (9) is a strip plate structure with an end face in an isosceles trapezoid; The spacing between adjacent outer straight tubes (2) and outer L-shaped tubes (4) is smaller than the width of the supporting plate (1).

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