A foundation pit supporting device for construction engineering
By designing adjustment and limiting mechanisms, the problem of the inability to adjust the spacing of retaining plates in the foundation pit support device was solved, achieving stable support for foundation pits of different widths and improving the adaptability and stability of the support device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI SANHUAN ENG CONSULTING CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-16
AI Technical Summary
In existing foundation pit support devices, the support column length of the retaining plate is fixed and cannot be flexibly adjusted according to the width of the foundation pit, resulting in an inability to effectively support foundation pits of different widths.
A foundation pit support device including an adjustment mechanism and a limiting mechanism was designed. The spacing between the retaining plates can be flexibly adjusted through the adjustment component and the support component. Combined with the telescopic component and the limiting mechanism, the retaining plates are stably supported in foundation pits of different widths.
It enables flexible adjustment of the spacing between retaining plates, adapting to foundation pits of different widths and improving the stability and adaptability of the support.
Smart Images

Figure CN224363322U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, specifically to a foundation pit support device for building engineering. Background Technology
[0002] In the construction process of building engineering, in order to ensure the safety of underground structure construction and the surrounding environment of the foundation pit, support structures are used to support the foundation pit. Retaining plates are a type of foundation pit support device, which is widely used in foundation pit excavation and other engineering operations. They are usually supported by horizontal bracing to resist the lateral pressure of the soil outside the foundation pit, prevent the soil from sliding into the foundation pit, ensure the stability of the soil around the foundation pit, and ensure the safe and orderly progress of construction operations inside the foundation pit. This ensures that the foundation construction and other related processes of the entire building engineering can be carried out smoothly in a stable environment.
[0003] The problem with existing technology is that, during the excavation of existing foundation pits, in order to prevent the collapse of the two sides of the foundation pit, retaining plates are usually added to both sides of the inner wall of the foundation pit. The retaining plates are mostly supported by the support columns on their inner sides, which hold the two retaining plates together and thus prevent the soil on both sides of the foundation pit from collapsing. However, the length of the support columns is mostly fixed, which means that the two retaining plates cannot be flexibly adjusted according to the different widths of the foundation pit to support foundation pits of different widths. Utility Model Content
[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a foundation pit support device for construction engineering, which has the advantage of supporting foundation pits of different widths. It solves the problem that in existing foundation pits, in order to prevent the collapse of the two sides of the foundation pit during excavation, retaining plates are usually added to both sides of the inner wall of the foundation pit. The retaining plates are mostly supported by the inner support columns, which hold the two retaining plates together to prevent the soil on both sides of the foundation pit from collapsing. However, the length of the support columns is mostly fixed, which makes it impossible to flexibly adjust the spacing between the two retaining plates according to the different widths of the foundation pit, thus failing to support foundation pits of different widths.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a foundation pit support device for building construction, comprising two retaining plates, the two retaining plates being symmetrically arranged, characterized in that: an adjustment mechanism is provided on the front and rear sides of the middle of the opposite side of the two retaining plates, and a limit mechanism is provided on the top and bottom of the front and rear sides of the retaining plates, the adjustment mechanism comprising an adjustment component and two support components, the two support components being respectively arranged on the left and right sides of the inner cavity of the adjustment component;
[0006] The limiting mechanism includes a sleeve, and the inner cavity of the sleeve is provided with a telescopic component.
[0007] As a preferred embodiment of this utility model, the adjusting component includes a dial, with screws fixedly connected to both the left and right sides of the dial. An adjusting frame is fitted onto the surface of the screw and threadedly connected to the adjusting frame. The side of the adjusting frame away from the dial is fixedly connected to a retaining plate.
[0008] In a preferred embodiment of this invention, the support assembly includes a positioning block located inside the adjusting frame and rotatably connected to one end of the screw. Support blocks are fixedly connected to the top and bottom of the positioning block, and a support plate is rotatably connected to the inner side of the support block.
[0009] In a preferred embodiment of this utility model, sliders are fixedly connected to both the front and rear sides of the positioning block, and grooves are provided on both the front and rear sides of the inner wall of the adjusting frame. The side of the slider away from the positioning block passes through the groove and extends into the inner cavity of the groove to contact the inner wall of the groove. A connecting block is rotatably connected to the side of the support plate away from the support block.
[0010] As a preferred embodiment of this utility model, T-shaped grooves are provided on the top and bottom of the front and rear sides of the two opposing retaining plates. T-shaped blocks are provided in the inner cavities of the T-shaped grooves. The side of the T-shaped block closest to the inner wall of the T-shaped groove contacts the inner wall of the T-shaped groove, and the side of the T-shaped block away from the retaining plate passes through the T-shaped groove and extends to the outside of the T-shaped groove to be fixedly connected to the connecting block.
[0011] As a preferred embodiment of this utility model, the telescopic assembly includes two telescopic rods and two fixing plates. The two telescopic rods are respectively disposed on the left and right sides of the inner cavity of the sleeve. Limiting blocks are fixedly connected to the opposite sides of the two telescopic rods. The opposite sides of the two telescopic rods penetrate the sleeve and extend to the outside of the sleeve to be fixedly connected to the fixing plates. The sides of the two fixing plates near the retaining plate are fixedly connected to the retaining plate.
[0012] In a preferred embodiment of this invention, the curved surface of the limiting block contacts the inner wall of the sleeve, and the diameter of the limiting block is larger than the diameter of the telescopic rod.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model solves the problem of existing foundation pit excavation methods that, in order to prevent the collapse of the two sides of the foundation pit, retaining plates are usually added to both sides of the inner wall of the foundation pit. The retaining plates are mostly supported by the inner support columns, which hold the two retaining plates together to prevent the soil on both sides of the foundation pit from collapsing. However, the length of the support columns is mostly fixed, which makes it impossible to flexibly adjust the spacing between the two retaining plates according to the different widths of the foundation pit to support foundation pits of different widths. This utility model achieves the effect of flexibly adjusting the spacing between the two retaining plates to support foundation pits of different widths.
[0015] 2. This utility model, by setting an adjustment mechanism, can adjust the distance between the two retaining plates to adapt to foundation pits of different widths, and can also improve the stability of the support during adjustment.
[0016] 3. By setting a limiting mechanism, this utility model can limit the top and bottom of the retaining plate, making it convenient to adjust the spacing of the retaining plate. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 A schematic diagram of the T-block and T-slot structure;
[0019] Figure 3 This is a schematic diagram of the adjustment mechanism.
[0020] Figure 4 This is a schematic diagram of the supporting component structure;
[0021] Figure 5 This is a schematic diagram of the telescopic component structure.
[0022] In the diagram: 1. Retaining plate; 2. Adjusting mechanism; 3. Limiting mechanism; 4. Sliding block; 5. Slide groove; 6. Connecting block; 7. T-slot; 8. T-block; 21. Adjusting component; 22. Support component; 31. Sleeve; 32. Telescopic component; 211. Actuating disc; 212. Screw; 213. Adjusting frame; 221. Positioning block; 222. Support block; 223. Support plate; 321. Telescopic rod; 322. Fixing plate; 323. Limiting block. Detailed Implementation
[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0027] Example 1
[0028] Reference Figure 1-5 This is the first embodiment of the present invention, which provides a foundation pit support device for building engineering, including two retaining plates 1, which are symmetrically arranged. Adjustment mechanisms 2 are provided on the front and rear sides of the middle of the opposite side of the two retaining plates 1, and limit mechanisms 3 are provided on the top and bottom of the front and rear sides of the retaining plates 1.
[0029] The adjustment mechanism 2 includes an adjustment component 21 and two support components 22, which are respectively disposed on the left and right sides of the inner cavity of the adjustment component 21;
[0030] The limiting mechanism 3 includes a sleeve 31, and the inner cavity of the sleeve 31 is provided with a telescopic component 32.
[0031] Specifically, by setting the adjustment mechanism 2, the distance between the two retaining plates 1 can be adjusted. By setting the limiting mechanism 3, the top and bottom of the retaining plate 1 can be limited during the adjustment process, so as to achieve the effect of flexibly adjusting the distance between the two retaining plates 1 and thus supporting the foundation pits of different widths.
[0032] Furthermore, when it is necessary to adjust the spacing between the two retaining plates 1 according to the different widths of the foundation pit, firstly, the two retaining plates 1 are moved closer or further apart by manually driving the adjustment component 21 to adjust their spacing to adapt to foundation pits of different widths. During the process of adjusting the spacing between the two retaining plates 1, the adjustment component 21 will also drive the support components 22 on both sides of its inner cavity to open or retract and form diagonal supports to improve the stability of the retaining plate 1. At the same time, during the movement of the retaining plate 1, the telescopic component 32 will be pulled to extend to adapt to the different spacing of the retaining plates 1 and limit the top and bottom of the retaining plate 1.
[0033] Example 2
[0034] The second embodiment of this utility model provides a foundation pit support device for building engineering. The adjustment component 21 includes a dial 211. Screws 212 are fixedly connected to the left and right sides of the dial 211. An adjustment frame 213 is sleeved on the surface of the screw 212 and threadedly connected to the adjustment frame 213. The side of the adjustment frame 213 away from the dial 211 is fixedly connected to the retaining plate 1.
[0035] The support assembly 22 includes a positioning block 221, which is located inside the adjusting frame 213 and rotatably connected to one end of the screw 212. Support blocks 222 are fixedly connected to the top and bottom of the positioning block 221, and a support plate 223 is rotatably connected to the inner side of the support block 222.
[0036] The front and rear sides of the positioning block 221 are fixedly connected to sliders 4. The front and rear sides of the inner wall of the adjusting frame 213 are provided with slide grooves 5. The side of slider 4 away from the positioning block 221 passes through the slide groove 5 and extends into the inner cavity of the slide groove 5 to contact the inner wall of the slide groove 5. The side of the support plate 223 away from the support block 222 is rotatably connected to the connecting block 6.
[0037] T-shaped grooves 7 are provided on the top and bottom of the front and rear sides of the two retaining plates 1 facing each other. T-shaped blocks 8 are provided in the inner cavity of each T-shaped groove 7. The side of the T-shaped block 8 close to the inner wall of the T-shaped groove 7 contacts the inner wall of the T-shaped groove 7, and the side of the T-shaped block 8 away from the retaining plate 1 passes through the T-shaped groove 7 and extends to the outside of the T-shaped groove 7 to be fixedly connected to the connecting block 6.
[0038] Specifically, by setting the dial 211, two screws 212 can be driven to rotate synchronously. By setting the two screws 212, two adjusting frames 213 can be driven to move closer or further apart synchronously. By setting the adjusting frames 213, the retaining plate 1 can be moved, thereby adjusting the spacing of the retaining plate 1.
[0039] By setting the positioning block 221 and the support block 222, the support plate 223 can be supported. By setting the support plate 223 and the connecting block 6, the retaining plate 1 can be supported, thereby improving the stability of the retaining plate 1.
[0040] By setting slider 4 and groove 5, positioning block 221 can be limited to make it move horizontally in a straight line. By setting T-block 8 and T-groove 7, when the spacing of retaining plate 1 is adjusted, the support plate 223 can be driven to swing through T-block 8 and connecting block 6, so that the support plate 223 can open or close, thereby supporting different positions of retaining plate 1.
[0041] Furthermore, the operator rotates the dial 211, causing the two screws 212 to rotate synchronously. During the rotation of the two screws 212, through the threaded connection with the adjusting frame 213 and the positioning block 221, the adjusting frame 213 will move, causing the two adjusting frames 213 on both sides to move closer or further apart synchronously. During the movement of the adjusting frame 213, the retaining plate 1 will move closer or further apart, adjusting the spacing of the retaining plate 1 to adapt to foundation pits of different widths. During the movement of the retaining plate 1, the connecting block 6 will move down through the T-shaped block 8 in the inner cavity of its T-shaped groove 7. The connecting block 6 will then cause the support plate 223 to swing around the support block 222 as the center, causing the support plate 223 to open or close, thereby supporting different positions of the retaining plate 1. This allows the support plate 223 to support different positions of the retaining plate 1 in foundation pits of different widths.
[0042] Example 3
[0043] The second embodiment of this utility model provides a foundation pit support device for building engineering. The telescopic component 32 includes two telescopic rods 321 and two fixing plates 322. The two telescopic rods 321 are respectively arranged on the left and right sides of the inner cavity of the sleeve 31. Limiting blocks 323 are fixedly connected to the opposite sides of the two telescopic rods 321. The opposite sides of the two telescopic rods 321 penetrate the sleeve 31 and extend to the outside of the sleeve 31 and are fixedly connected to the fixing plates 322. The side of the two fixing plates 322 near the retaining plate 1 is fixedly connected to the retaining plate 1.
[0044] The curved surface of the limiting block 323 contacts the inner wall of the sleeve 31, and the diameter of the limiting block 323 is larger than the diameter of the telescopic rod 321.
[0045] Specifically, by setting the sleeve 31 and two telescopic rods 321, the retaining plate 1 can be limited. By setting the fixing plate 322, the telescopic rod 321 can extend or retract along with the retaining plate 1. By setting the limiting block 323, the telescopic rod 321 can be limited to prevent it from being pulled out of the inner cavity of the sleeve 31.
[0046] Furthermore, during the adjustment of the spacing of the retaining plate 1, the fixed plate 322 fixed to it will drive the telescopic rod 321 to extend or retract from the inner cavity of the sleeve 31, so that the sleeve 31 and the telescopic rod 321 can limit the retaining plate 1 at different spacings. During the extension or retraction of the telescopic rod 321, it will drive the limiting block 323 to move synchronously. The diameter of the limiting block 323 is larger than the diameter of the telescopic rod 321. When the limiting block 323 moves to the appropriate position, it will be blocked by the inner wall of the sleeve 31, thereby limiting the telescopic rod 321 and preventing the telescopic rod 321 from detaching from the inner cavity of the sleeve 31.
[0047] Working principle:
[0048] When the width of the foundation pit needs to be adjusted according to the different widths, the operator rotates the dial 211, which drives the two screws 212 to rotate synchronously. During the rotation of the two screws 212, through the threaded connection with the adjusting frame 213 and the positioning block 221, the adjusting frame 213 will be moved, so that the adjusting frames 213 on both sides move closer or further apart synchronously. During the movement of the adjusting frame 213, the retaining plates 1 will move closer or further apart, and the spacing of the retaining plates 1 will be adjusted to adapt to foundation pits of different widths.
[0049] During the movement of the retaining plate 1, the connecting block 6 will move down through the T-shaped block 8 in the inner cavity of its T-shaped groove 7. The connecting block 6 will then cause the support plate 223 to swing around the support block 222 as the center, so that the support plate 223 can open or close, thereby supporting different positions of the retaining plate 1. This allows the support plate 223 to support different positions of the retaining plate 1 in foundation pits of different widths.
[0050] During the adjustment of the spacing of the retaining plate 1, the telescopic rod 321 will extend or retract from the inner cavity of the sleeve 31 through the fixing plate 322 fixed to it. This allows the sleeve 31 and the telescopic rod 321 to limit the spacing of the retaining plates 1 at different intervals. During the extension or retraction of the telescopic rod 321, the limiting block 323 will move synchronously. The diameter of the limiting block 323 is larger than the diameter of the telescopic rod 321. When the limiting block 323 moves to the appropriate position, it will be blocked by the inner wall of the sleeve 31, thereby limiting the telescopic rod 321 and preventing the telescopic rod 321 from detaching from the inner cavity of the sleeve 31.
[0051] In summary, by using the adjustment mechanism 2 and the limiting mechanism 3 in combination, the spacing between the two retaining plates can be flexibly adjusted, thereby providing support for foundation pits of different widths.
[0052] It should be noted that the screw is a device or equipment existing in the prior art, or a device or equipment that can be implemented by the prior art. The connection method, usage method, power source, fixing method, installation method, control method, etc. of the device, as well as the materials of each accessory and the selection of various parameters are all common knowledge in the art, and therefore will not be described in detail in this application document.
[0053] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0054] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0055] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0056] It should be noted that the above embodiments are only used to illustrate the technical solution 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 solution of this utility model without departing from the spirit and scope of the technical solution 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 foundation pit supporting device for construction engineering, comprising two retaining plates (1), the two retaining plates (1) are symmetrically arranged, characterized in that: An adjustment mechanism (2) is provided on the front and rear sides of the two retaining plates (1) facing each other, and a limit mechanism (3) is provided on the top and bottom of the front and rear sides of the retaining plates (1). The adjustment mechanism (2) includes an adjustment component (21) and two support components (22), the two support components (22) being respectively disposed on the left and right sides of the inner cavity of the adjustment component (21); The limiting mechanism (3) includes a sleeve (31), and the inner cavity of the sleeve (31) is provided with a telescopic component (32).
2. A foundation pit support device for construction work according to claim 1, characterized in that: The adjustment assembly (21) includes a dial (211), and screws (212) are fixedly connected to the left and right sides of the dial (211). An adjustment frame (213) is sleeved on the surface of the screw (212) and threadedly connected to the adjustment frame (213). The side of the adjustment frame (213) away from the dial (211) is fixedly connected to the retaining plate (1).
3. A building construction site excavation support device according to claim 2, wherein: The support assembly (22) includes a positioning block (221), which is located inside the adjusting frame (213) and rotatably connected to one end of the screw (212). The top and bottom of the positioning block (221) are fixedly connected to support blocks (222), and the inner side of the support block (222) is rotatably connected to a support plate (223).
4. A building engineering foundation pit supporting device according to claim 3, characterized in that: The positioning block (221) is fixedly connected to the front and rear sides of the slider (4), and the inner wall of the adjusting frame (213) is provided with the front and rear sides of the sliding groove (5). The side of the slider (4) away from the positioning block (221) passes through the sliding groove (5) and extends to the inner cavity of the sliding groove (5) to contact the inner wall of the sliding groove (5). The side of the support plate (223) away from the support block (222) is rotatably connected to the connecting block (6).
5. A building construction site excavation support device according to claim 4, wherein: T-shaped grooves (7) are provided on the top and bottom of the front and rear sides of the two retaining plates (1) facing each other. T-shaped blocks (8) are provided in the inner cavity of each T-shaped groove (7). The side of the T-shaped block (8) close to the inner wall of the T-shaped groove (7) contacts the inner wall of the T-shaped groove (7). The side of the T-shaped block (8) away from the retaining plate (1) passes through the T-shaped groove (7) and extends to the outside of the T-shaped groove (7) and is fixedly connected to the connecting block (6).
6. The excavation bracing device of claim 1, wherein: The telescopic assembly (32) includes two telescopic rods (321) and two fixing plates (322). The two telescopic rods (321) are respectively located on the left and right sides of the inner cavity of the sleeve (31). Limiting blocks (323) are fixedly connected to the opposite sides of the two telescopic rods (321). The opposite sides of the two telescopic rods (321) penetrate the sleeve (31) and extend to the outside of the sleeve (31) to be fixedly connected to the fixing plates (322). The side of the two fixing plates (322) near the retaining plate (1) is fixedly connected to the retaining plate (1).
7. A building construction site excavation support device according to claim 6, wherein: The curved surface of the limiting block (323) contacts the inner wall of the sleeve (31), and the diameter of the limiting block (323) is larger than the diameter of the telescopic rod (321).