An assembled foundation pit support frame convenient to maintain
The modular design of the prefabricated foundation pit support frame solves the problems of long construction cycle and cumbersome maintenance of traditional foundation pit support frames, enabling rapid installation and disassembly, reducing maintenance costs, and improving the stability and applicability of the structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI BAOYE GRP CORP
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-02
Smart Images

Figure CN224314205U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of foundation pit support equipment, specifically a prefabricated foundation pit support frame that is easy to maintain. Background Technology
[0002] In building construction, foundation pit support is a key technology to ensure the safety of underground structure construction and the surrounding environment. Traditional foundation pit support frames are mostly constructed by on-site welding of steel pipes and support frames, and concrete pouring. Although this structure has a certain strength, it is prone to damage when the construction period is long. Many of them are one-time use structures. Especially for some small foundation pit protection, after the foundation pit support frame is installed, it still requires regular maintenance by staff. The maintenance of traditional on-site welded or poured foundation pit support frames is too cumbersome, increasing costs and maintenance difficulty. To address this, the applicant proposes a prefabricated foundation pit support frame that is easy to maintain, solving the problem of the cumbersome maintenance of traditional on-site welded support frames or concrete pouring foundation pit support frames. Through modular design and assembly, the device structure can be reused, making installation convenient and quick. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model proposes a prefabricated, easily maintained foundation pit support frame. It comprises a base plate, baffles, side plates, baffle support assemblies, and side plate support assemblies. A baffle is installed in front of the base plate, and side plates are installed on the left and right sides. The baffles are mounted on the base plate via baffle support assemblies, and the side plates are mounted on the base plate via side plate support assemblies. Support strips and gripping teeth are provided at the lower part of the base plate, and limiting posts are provided at the positions where the baffles and side plates are installed on the upper part of the base plate. The baffle support assembly includes a support base, hydraulic rods, and mounting bolts. The side plate support assembly includes a limiting groove base, support rods, limiting blocks, and a side plate connecting support base. This prefabricated, easily maintained foundation pit support frame is modularly designed and manufactured, making installation, disassembly, and maintenance convenient, low-cost, and highly adaptable.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A prefabricated, easy-to-maintain foundation pit support frame includes a mounting base plate, baffles, side plates, baffle support assemblies, and side plate support assemblies. The prefabricated, easy-to-maintain foundation pit support frame is characterized by: a mounting base plate with a baffle installed on the front side of the mounting base plate; side plates installed on both sides of the mounting base plate; a baffle support assembly between the baffle and the mounting base plate, and a side plate support assembly between the side plates and the mounting base plate; the baffle support assembly and the side plate support assembly are fixed to the mounting base plate by welding.
[0006] Furthermore, the prefabricated, easy-to-maintain foundation pit support frame is provided with an installation base plate, a limiting post is provided on the upper part of the installation base plate, and a connecting hole is provided on the limiting post; a support strip is provided on the lower part of the base plate, and a gripping tooth is provided on the support strip.
[0007] Furthermore, the prefabricated, easy-to-maintain foundation pit support frame is equipped with a baffle support assembly. The baffle support assembly is equipped with a support base, a hydraulic rod, and mounting bolts. The support base is installed at the middle upper part of the mounting base plate and the upper part of the back side of the baffle. The hydraulic rod is installed between the support bases and is connected to the support base by mounting bolts.
[0008] Furthermore, the prefabricated, easy-to-maintain foundation pit support frame is equipped with a side plate support assembly. The side plate support assembly is equipped with a limiting groove base, a support rod, a limiting block, and a side plate connecting support seat. The limiting groove base is installed at the corner edge of the mounting base plate, the limiting block is installed at the bottom edge of the baffle and the side plate, the side plate connecting support seat is installed at the upper part of the back side of the side plate, and the support rod is installed between the limiting groove base and the side plate connecting support seat.
[0009] Furthermore, the side plate support assembly of the prefabricated, easy-to-maintain foundation pit support frame is equipped with a limit groove base, the limit groove base is equipped with an adjustment groove, multiple sets of adjustment holes are provided on both sides of the adjustment groove, an adjustment rod is provided in the adjustment groove, and the support rod is installed in the adjustment groove through the adjustment rod.
[0010] The benefits of this application are:
[0011] 1. The prefabricated, easy-to-maintain, modular design of the foundation pit support frame allows for convenient and quick installation and disassembly, is reusable, and has low installation costs.
[0012] 2. The modular design of the prefabricated pit support frame facilitates maintenance and ensures a stable and safe assembly structure.
[0013] 3. The prefabricated and easy-to-maintain foundation pit support frame has a simple structure, is easy to maintain on site, and is conducive to long-term use; Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ;
[0015] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;
[0016] Figure 3 This is a schematic diagram of a partial structure of the present invention. Figure 1 ;
[0017] Figure 4This is a schematic diagram of a partial structure of the present invention. Figure 2 ;
[0018] Figure 5 This is a schematic diagram of a partial structure of the present invention. Figure 3 .
[0019] The markings in the diagram are as follows: 1. Base plate; 1-1 Limiting post; 1-2. Support strip; 1-3. Grip teeth; 2. Baffle; 3. Side plate; 4. Baffle support assembly; 4-1. Support base; 4-2. Hydraulic rod; 4-3. Mounting bolt; 5. Side plate support assembly; 5-1. Limiting groove base; 5-1-1. Adjusting groove; 5-1-2. Adjusting rod; 5-2. Support rod; 5-3. Limiting block; 5-4. Side plate connecting support base. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:
[0021] like Figure 1-2 As shown, this is a prefabricated, easily maintained foundation pit support frame, including a base plate 1, a baffle 2, side plates 3, a baffle support assembly 4, and a side plate support assembly 5. Figure 1 As shown, the prefabricated, easy-to-maintain foundation pit support frame is equipped with a base plate 1, which is made of steel plate and has good resistance to deformation. A baffle 2 is installed on the front side of the base plate 1; side plates 3 are installed on both sides of the base plate 1. The baffle 2 and side plates 3 are made of high-strength steel plate. A baffle support assembly 4 is set between the baffle 2 and the base plate 1 to form a stable structure between the baffle 2 and the base plate 1. A side plate support assembly 5 is set between the side plates 3 and the base plate 1 to form a stable structure between the side plates 3 and the base plate 1. The baffle support assembly 4 and the side plate support assembly 5 are fixed to the base plate 1 by welding.
[0022] like Figure 3 As shown, a limiting post 1-1 is provided on the upper part of the mounting base plate 1. The limiting post 1-1 is located on the outer edge of the mounting base plate 1 and provides a limiting function for the upper installed baffle 2 and side plate 3. The limiting post 1-1 is provided with a connecting hole. When multiple mounting base plates 1 are used side by side, they are connected by bolts through the connecting hole to make the mounting base plates 1 form a whole. The lower part of the mounting base plate 1 is provided with a support strip 1-2. The support strip 1-2 forms a grid structure at the lower part of the mounting base plate 1, which makes its stability better. The support strip 1-2 is provided with a gripping tooth 1-3. The gripping tooth 1-3 can make the mounting base plate 1 more firmly attached to the ground and prevent displacement.
[0023] like Figure 4As shown, the prefabricated, easily maintained foundation pit support frame is equipped with a baffle support assembly 4. The baffle support assembly 4 includes a support base 4-1, a hydraulic rod 4-2, and mounting bolts 4-3. The support base 4-1 is installed on the upper middle part of the mounting base plate 1 and the upper part of the back side of the baffle 2, and is fixed by welding. The hydraulic rod 4-2 is installed between the support base 4-1 and is connected to the support base 4-1 by mounting bolts 4-3. The hydraulic rod 4-2 and the support base 4-1 are rotatable, and the pressure value of the hydraulic rod 4-2 is adjustable. During the foundation pit support process, the hydraulic value is adjusted as needed. If the foundation pit experiences slight deformation that does not affect safety, the hydraulic rod 4-2 slightly adjusts the angle of the baffle 2 to meet the support requirements and avoids irreversible damage caused by rigid connections.
[0024] like Figure 5 As shown, the prefabricated, easy-to-maintain foundation pit support frame is equipped with a side plate support assembly 5. The side plate support assembly 5 includes a limiting groove base 5-1, a support rod 5-2, a limiting block 5-3, and a side plate connecting support seat 5-4. The limiting groove base 5-1 is installed near the corner of the mounting base 1, providing limiting support for the lower rear side of the baffle 2 and side plate 3. The limiting block 5-3 is installed near the bottom of the baffle 2 and side plate 3. The side plate connecting support seat 5-4 is installed... The support rod 5-2 is installed on the upper part of the back side of the side plate 3. It is installed between the limiting groove base 5-1 and the side plate connecting support 5-4. The limiting groove base 5-1 is provided with an adjustment groove 5-1-1. Multiple sets of adjustment holes are provided on both sides of the adjustment groove 5-1-1. The adjustment rod 5-1-2 is installed in the adjustment groove. The support rod 5-2 is installed in the adjustment groove 5-1-1 through the adjustment rod 5-1-2. When installing the side plate, the angle of the side plate 2 can be adjusted according to the angle of the pit edge protected by the side plate. This can be achieved by moving the adjustment rod 5-1-2 in the adjustment groove 5-1-1.
[0025] The prefabricated, easy-to-maintain foundation pit support frame shown is designed with a modular structure and is manufactured according to the dimensions required for supporting some small foundation pits commonly encountered in construction. In use, the mounting base plate 1 is installed on the bottom edge of the foundation pit. Then, the installation angles of the baffle plate 2 and the side plate 3 are adjusted according to the inclination angle of the foundation pit side. The baffle plate 2 is the main support plate, and the baffle plate support assembly 4 set behind it adjusts the support force and progress. The side plate support assembly 5 on the rear side of the side plate 3 provides the angle and support force for the side plate 2. For some uncommon foundation pits, multiple sets of support frames can be combined for use. The installation is simple, convenient and quick.
[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any modifications or equivalent changes made based on the technical essence of the present utility model shall still fall within the scope of protection claimed by the present utility model.
Claims
1. A prefabricated, easy-to-maintain foundation pit support frame, comprising a mounting base plate (1), a baffle plate (2), side plates (3), a baffle plate support assembly (4), and a side plate support assembly (5), characterized in that: The prefabricated, easy-to-maintain foundation pit support frame is provided with an installation base plate (1), a baffle (2) is installed on the front side of the installation base plate (1); side plates (3) are installed on both sides of the installation base plate (1); a baffle support assembly (4) is provided between the baffle (2) and the installation base plate (1), and a side plate support assembly (5) is provided between the side plate (3) and the installation base plate (1). The connection between the baffle support assembly (4) and the side plate support assembly (5) and the installation base plate (1) is fixed by welding.
2. The prefabricated, easy-to-maintain foundation pit support frame according to claim 1, characterized in that: The prefabricated, easy-to-maintain foundation pit support frame is provided with an installation base plate (1), a limiting column (1-1) is provided on the upper part of the installation base plate (1), and a connecting hole is provided on the limiting column (1-1); a support strip plate (1-2) is provided on the lower part of the base plate (1), and a gripping tooth (1-3) is provided on the support strip plate (1-2).
3. The prefabricated, easy-to-maintain foundation pit support frame according to claim 1, characterized in that: The prefabricated, easy-to-maintain foundation pit support frame is equipped with a baffle support assembly (4). The baffle support assembly (4) is equipped with a support seat (4-1), a hydraulic rod (4-2), and mounting bolts (4-3). The support seat (4-1) is installed at the upper middle part of the mounting base plate (1) and the upper part of the back side of the baffle (2). The hydraulic rod (4-2) is installed between the support seats (4-1), and the hydraulic rod (4-2) is connected to the support seat (4-1) by mounting bolts (4-3).
4. The prefabricated, easy-to-maintain foundation pit support frame according to claim 1, characterized in that: The prefabricated, easy-to-maintain foundation pit support frame is equipped with a side plate support assembly (5). The side plate support assembly (5) is equipped with a limiting groove base (5-1), a support rod (5-2), a limiting block (5-3), and a side plate connecting support seat (5-4). The limiting groove base (5-1) is installed on the corner of the mounting base plate (1). The limiting block (5-3) is installed on the bottom of the baffle (2) and the side plate (3). The side plate connecting support seat (5-4) is installed on the upper part of the back side of the side plate (3). The support rod (5-2) is installed between the limiting groove base (5-1) and the side plate connecting support seat (5-4).
5. The prefabricated, easy-to-maintain foundation pit support frame according to claim 4, characterized in that: The prefabricated, easy-to-maintain foundation pit support frame is provided with a side plate support assembly (5) and a limiting groove base (5-1). The limiting groove base (5-1) is provided with an adjustment groove (5-1-1). Multiple sets of adjustment holes are provided on both sides of the adjustment groove (5-1-1). An adjustment rod (5-1-2) is provided in the adjustment groove. The support rod (5-2) is installed in the adjustment groove (5-1-1) through the adjustment rod (5-1-2).