Supporting structure for foundation pit supporting

Abstract

The utility model relates to a supporting structure for supporting a foundation pit, which comprises a supporting frame, two opposite ends of the supporting frame are provided with supporting seats used for supporting the front side face and the rear side face in the foundation pit; the supporting plate is used for supporting the left side face or the right side face perpendicular to the front and rear side faces; the adjusting assembly comprises a supporting rod arranged on the supporting frame, a supporting cylinder arranged on the supporting rod in a sleeving mode and an adjusting piece, the supporting plate is arranged on the supporting cylinder, and the adjusting piece is rotationally arranged on the supporting cylinder and is in threaded connection with the supporting rod so as to drive the supporting cylinder to move in the axial direction of the supporting rod to abut against the left side face or the right side face. Or separate therefrom. The supporting plate and the adjusting assembly are arranged on the supporting frame, the formworks on the front side face and the rear side face opposite to each other in a foundation pit can be supported, the formworks on the left side face or the right side face perpendicularly connected with the formworks can be synchronously supported, overall supporting of the formworks in multiple directions of the foundation pit is achieved, and the stability of the formworks is improved.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit formwork reinforcement technology, specifically to a support structure for foundation pit support. Background Technology

[0002] During the construction of underground projects, in order to prevent safety issues such as sidewall deformation and collapse of the foundation pit during excavation and concrete pouring, it is usually necessary to install support frames inside the foundation pit to effectively support the sidewalls or formwork structure of the foundation pit.

[0003] Chinese patent CN220538667U discloses a support frame for foundation pit support using a steel structure. It comprises multiple support units consisting of a first steel pipe, a second steel pipe, and connecting blocks. By rationally arranging these support units within the foundation pit, stable support can be achieved for the opposing formwork or sidewalls of the pit. This solution features a simple structure, convenient installation, and enhanced overall stability through connecting pipes between the support frames. It possesses good practicality and reusability.

[0004] However, the support structure in the aforementioned patented solution only considers the support for the opposite two sides of the foundation pit, and does not provide effective support structures for the other sides connected to these two sides. Therefore, additional support components are required to support these sides, which not only increases the structural complexity and construction difficulty, but also reduces the overall utilization rate and efficiency of the support system. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a support structure for foundation pit support, so as to solve the problem that the support structure of the existing technology cannot support the template in multiple directions inside the foundation pit at the same time.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A support structure for foundation pit support includes:

[0008] The support frame has support seats at both ends to support the front and rear sides of the foundation pit.

[0009] Support plate, used to support the left or right side that is perpendicular to the front and rear sides;

[0010] The adjustment assembly includes a support rod disposed on the support frame, a support cylinder sleeved on the support rod, and an adjustment member. The support plate is disposed on the support cylinder, and the adjustment member is rotatably disposed on the support cylinder and threadedly connected to the support rod to drive the support cylinder to move axially along the support rod to abut against or separate from the left or right side.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. By setting support plates and adjustment components on the support frame, not only can the templates on the front and rear sides of the foundation pit be supported, but also the templates on the left or right sides that are perpendicular to it can be supported simultaneously. This achieves overall support for the templates in multiple directions of the foundation pit, improving the stability of the templates. Furthermore, the threaded adjustment components allow the support cylinder to move axially along the support rod, enabling fine-tuning according to different foundation pit sizes and template positions, thus improving the applicability and flexibility of the support frame.

[0013] Furthermore, the support rod includes a mounting portion disposed on the support frame, a threaded portion connected to the mounting portion, and a support portion connected to the threaded portion; the adjusting member includes an adjusting cylinder rotatably disposed on the support cylinder, the adjusting cylinder having a threaded sleeve, and the threaded sleeve being threadedly connected to the threaded portion.

[0014] Furthermore, the end of the mounting part is provided with a bayonet; the side of the support frame is provided with a connecting plate, and the bayonet is engaged with the connecting plate.

[0015] Furthermore, a bolt is threaded onto one side of the bayonet, and the connecting plate is provided with a mounting hole for the bolt to pass through and be locked.

[0016] Furthermore, a limiting block is provided at the end of the support part; a limiting groove is opened in the support cylinder, and the limiting block is slidably engaged with the limiting groove.

[0017] Furthermore, an adjusting wheel is provided on the outer side of the adjusting cylinder.

[0018] Furthermore, there are two support plates, one for supporting the left or right side and the other for supporting the front or rear side, and both are mounted on the support frame via the adjustment assembly.

[0019] Furthermore, the support cylinder has two corresponding through slots, and the support plate is rotatably disposed on the support cylinder and moves within the through slots. Attached Figure Description

[0020] Appendix Figure 1 This embodiment presents a schematic diagram of the support structure used for foundation pit support.

[0021] Appendix Figure 2 : A schematic diagram of the support structure used for foundation pit support in this embodiment;

[0022] Appendix Figure 3 : A schematic diagram of the support rod in the support structure for foundation pit support in this embodiment;

[0023] Explanation of icon numbers:

[0024] 10. Support frame; 11. Connecting plate;

[0025] 20. Support base;

[0026] 30. Support plate;

[0027] 40. Support rod; 41. Mounting part; 42. Threaded part; 43. Support part; 44. Bayonet; 45. Limiting block;

[0028] 50. Support cylinder; 51. Through groove;

[0029] 60. Adjusting cylinder; 61. Adjusting wheel;

[0030] 70. Threaded cylinder.

[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solutions of this utility model are further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0033] In the description of this utility model, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives of this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this utility model.

[0034] like Figure 1-3As shown in the figure, this utility model embodiment proposes a support structure for foundation pit support, including a support frame 10, a support plate 30, and an adjustment assembly. The support frame 10 has support seats 20 at opposite ends for supporting the opposite front and rear sides inside the foundation pit. The support plate 30 is used to support the left or right side perpendicular to the front and rear sides. The adjustment assembly includes a support rod 40 disposed on the support frame 10, a support cylinder 50 sleeved on the support rod 40, and an adjustment member. The support plate 30 is disposed on the support cylinder 50. The adjustment member is rotatably disposed on the support cylinder 50 and threadedly connected to the support rod 40 to drive the support cylinder 50 to move axially along the support rod 40 to abut against or separate from the left or right side.

[0035] In this embodiment of the invention, during actual construction, the support frame 10 is first horizontally positioned inside the foundation pit according to the size of the pit and the layout of the formwork. The support seats 20 at both ends of the support frame 10 abut against the front and rear formwork on opposite sides of the pit, thus providing initial support and positioning for the front and rear formwork through the support seats 20. Subsequently, by rotating the adjusting member on the support cylinder 50, the support cylinder 50 is moved smoothly along the axial direction of the support rod 40, thereby driving the support plate 30 installed on the support cylinder 50 to move to the left or right until the support plate 30 is firmly abutted against the target side formwork, thereby achieving overall support for the formwork in multiple directions of the foundation pit and improving the stability of the extended formwork. When construction requirements change, simply rotating the adjusting member in the opposite direction will cause the support plate 30 to move the support cylinder 50 away from the target formwork and separate it from it, facilitating subsequent disassembly or repositioning. The operation process is simple, convenient, and flexible. Therefore, with the support frame 10 of this utility model, users can quickly complete the positioning, installation and lateral support adjustment of the support frame 10, which can be applied to different foundation pit sizes and structural requirements, thus improving the applicability and flexibility of the support frame 10. In order to further improve applicability, in one embodiment, the support frame 10 can be spliced ​​from two steel sections, so that connecting steel can be added between the two steel sections according to the width of the foundation pit.

[0036] Specifically, such as Figure 3As shown, in this embodiment of the present invention, the support rod 40 includes a mounting portion 41 disposed on the support frame 10, a threaded portion 42 connected to the mounting portion 41, and a support portion 43 connected to the threaded portion 42; the adjusting member includes an adjusting cylinder 60 rotatably disposed on the support cylinder 50, the adjusting cylinder 60 having a threaded cylinder 70, the threaded cylinder 70 being threadedly connected to the threaded portion 42. Since the adjusting cylinder 60 is rotatably disposed on the support cylinder 50, the adjusting cylinder 60 can only drive the threaded cylinder 70 disposed thereon to rotate relative to the support cylinder 50. The threaded cylinder 70 is threadedly connected to the threaded portion 42, and the threaded portion 42 is fixed. Therefore, by rotating the adjusting cylinder 60, the threaded cylinder 70 moves up and down along the threaded portion 42, thereby causing the support cylinder 50 connected to the adjusting cylinder 60 to slide on the support rod 40 until it firmly abuts against the corresponding left or right side surface, thus providing support. Furthermore, to facilitate the installation and disassembly of the support rod 40, a bayonet 44 is provided at the end of the mounting part 41; a connecting plate 11 is provided on the side of the support frame 10, and the bayonet 44 is engaged with the connecting plate 11. During installation, simply align the bayonet 44 with the connecting plate 11 on the side of the support frame 10 and insert it to complete the connection between the support rod 40 and the support frame 10. At the same time, to further enhance the reliability of the connection, a bolt is threadedly connected to one side of the bayonet 44, and the connecting plate 11 is provided with a mounting hole for the bolt to pass through and be locked. Through this structure, the bolt can pass through the mounting hole and be tightened, so that its end is close to the back of the connecting plate 11, thereby further forming a bolt lock on the basis of the bayonet 44 and the connecting plate 11, improving the firmness and vibration resistance of the connection between the support rod 40 and the support frame 10, and avoiding loosening of the connection due to construction load or external force.

[0037] Secondly, such as Figure 2-3 As shown in this embodiment of the invention, to limit the rotation or axial dislocation of the support cylinder 50 on the support rod 40, a limiting block 45 is provided at the end of the support part 43; a limiting groove is formed inside the support cylinder 50, and the limiting block 45 is slidably engaged with the limiting groove. Through the cooperation between the limiting block 45 and the limiting groove, a guiding effect can be provided during the movement of the support cylinder 50 with the adjusting cylinder 60, while preventing the support cylinder 50 from rotating or accidentally falling off, thereby ensuring the overall stability of the support structure; furthermore, to facilitate manual adjustment of the adjusting cylinder 60 by the operator, an adjusting wheel 61 is provided on the outer side of the adjusting cylinder 60. The adjusting wheel 61 is used for the user to rotate, thereby driving the adjusting cylinder 60 to rotate. By setting the adjusting wheel 61, not only is the convenience and flexibility of adjustment improved, but the ergonomics of the construction process is also enhanced, making it suitable for rapid adjustment operations in confined spaces or complex working conditions.

[0038] Based on the above solutions, such as Figure 1As shown in this embodiment of the invention, two support plates 30 are provided, one for supporting the left or right side and the other for supporting the front or rear side. Both are mounted on the support frame 10 via the adjustment assembly. The support plate 30 supporting the front or rear side cooperates with the support seats 20 at both ends of the support frame 10 to jointly support the front or rear side, forming a triangular structure in space. This structural arrangement enables the support rod 40, support seats 20, and support frame 10 to form a stable three-point support relationship, effectively improving the support rigidity of the front and rear sides and the overall resistance to deformation. Furthermore, the support cylinder 50 has two corresponding through slots 51. The support plate 30 is rotatably mounted on the support cylinder 50 and moves within the through slots 51, allowing the support plate 30 to be finely adjusted according to the position of the front and rear sides, further improving fit and support effect.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A support structure for foundation pit support, characterized in that, include: The support frame (10) has support seats (20) at both ends for supporting the front and rear sides of the foundation pit; Support plate (30) is used to support the left or right side that is perpendicular to the front and rear sides; The adjustment assembly includes a support rod (40) disposed on the support frame (10), a support cylinder (50) sleeved on the support rod (40), and an adjustment member. The support plate (30) is disposed on the support cylinder (50), and the adjustment member is rotatably disposed on the support cylinder (50) and threadedly connected to the support rod (40) to drive the support cylinder (50) to move along the axial direction of the support rod (40) to abut against the left or right side, or to separate from it.

2. The support structure for foundation pit support according to claim 1, characterized in that, The support rod (40) includes a mounting part (41) provided on the support frame (10), a threaded part (42) connected to the mounting part (41), and a support part (43) connected to the threaded part (42); the adjusting member includes an adjusting cylinder (60) rotatably provided on the support cylinder (50), the adjusting cylinder (60) is provided with a threaded cylinder (70), and the threaded cylinder (70) is threadedly connected to the threaded part (42).

3. The support structure for foundation pit support according to claim 2, characterized in that, The mounting part (41) has a slot (44) at its end; the support frame (10) has a connecting plate (11) on its side, and the slot (44) is engaged with the connecting plate (11).

4. The support structure for foundation pit support according to claim 3, characterized in that, One side of the bayonet (44) is threaded with a bolt, and the connecting plate (11) is provided with a mounting hole for the bolt to pass through and be locked.

5. A support structure for foundation pit support according to claim 2, characterized in that, The end of the support part (43) is provided with a limiting block (45); a limiting groove is opened in the support cylinder (50), and the limiting block (45) is slidably engaged in the limiting groove.

6. A support structure for foundation pit support according to claim 2, characterized in that, An adjusting wheel (61) is provided on the outer side of the adjusting cylinder (60).

7. A support structure for foundation pit support according to any one of claims 1-6, characterized in that, The support plate (30) is provided in two parts, one of which is used to support the left or right side and the other is used to support the front or rear side, and both are mounted on the support frame (10) through the adjustment component.

8. A support structure for foundation pit support according to claim 7, characterized in that, The support cylinder (50) has two corresponding through slots (51), and the support plate (30) is rotatably disposed on the support cylinder (50) and moves in the through slots (51).

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