Steel pipe inclined strut for foundation pit supporting

By designing the base, connecting plate, adjustment components, and auxiliary support components, the problems of fixed steel pipe brace length and uneven support force were solved, enabling flexible adjustment and enhanced stability of the steel pipe brace, and improving the applicability and service life of the structure.

CN224281296UActive Publication Date: 2026-05-26GUANGZHOU CONSTR ENG SUPERVISION CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU CONSTR ENG SUPERVISION CO LTD
Filing Date
2025-06-17
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing steel pipe bracing for foundation pit support has a fixed length, which cannot be freely adjusted according to the actual situation. Furthermore, the pressure on a single steel pipe is too great, resulting in a reduction in the structural applicability and service life.

Method used

The system employs a base, connecting plate, connecting seat, adjustment component, and auxiliary support component. The length of the steel pipe is adjusted by a screw driven by a motor, and the auxiliary support component is used to distribute the support force and enhance stability.

Benefits of technology

It enables flexible adjustment of the length of the steel pipe diagonal brace, improves the applicability, evenly distributes the supporting force, and extends the service life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224281296U_ABST
    Figure CN224281296U_ABST
Patent Text Reader

Abstract

The utility model discloses a steel pipe inclined strut for foundation pit supporting, and relates to the technical field of foundation pit supporting, the steel pipe inclined strut comprises a base, a mounting groove is formed in the top end of the base, a connecting plate is fixedly connected to the inner wall of the mounting groove, connecting seats are hinged to the two ends of the connecting plate through rotating shafts, one end of each connecting seat is fixedly connected with a first steel pipe, and the other end of each connecting seat is fixedly connected with a second steel pipe. The outer surface of the first steel pipe and one end of the base are jointly provided with an auxiliary supporting assembly, the outer surface of the first steel pipe is sleeved with a second steel pipe in a sliding mode, and the interior of the first steel pipe and the interior of the second steel pipe are jointly provided with an adjusting assembly. The length of the steel pipe inclined strut is flexibly adjusted, so that the steel pipe inclined strut can better adapt to different engineering requirements, by arranging the auxiliary supporting assembly, the foundation pit supporting stability of the inclined strut structure is improved, and meanwhile stress can be more uniform during inclined strut.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of foundation pit support technology, and in particular to a steel pipe diagonal brace for foundation pit support. Background Technology

[0002] An excavation pit is an underground space excavated for the construction of a building's foundation and basement. It is used in building engineering. An excavation pit is a temporary project. Its function is to provide a space so that the foundation masonry work can be carried out in the location specified in the design. The excavation volume of the excavation pit is calculated based on the pit's volume. After the excavation is completed, the pit is usually supported to prevent the edges from collapsing.

[0003] Regarding the aforementioned technologies, the inventors believe that the existing steel pipe diagonal bracing for foundation pit support generally has a fixed distance. When supporting different lumbar beam positions of foundation pits, the length of the supporting steel pipe needs to be adjusted to achieve the best bracing effect. Since there is no adjustment component, it is inconvenient to freely adjust the length of the supporting steel pipe according to the actual situation, reducing the applicability of the diagonal bracing structure. Furthermore, existing diagonal bracing structures generally only have one steel pipe supporting the foundation pit. This support method results in the steel pipe bearing a large pressure, which can easily cause damage to the steel pipe. The lack of auxiliary support components makes it difficult to distribute the supporting force during diagonal bracing, reducing the service life of the diagonal bracing structure. Utility Model Content

[0004] The purpose of this application is to provide a steel pipe diagonal brace for foundation pit support, so as to improve the problems of inconvenience in freely adjusting the length of the supporting steel pipe according to the actual situation and inconvenience in distributing the supporting force when using diagonal bracing.

[0005] The technical solution for a steel pipe diagonal brace for foundation pit support provided in this application is as follows:

[0006] A steel pipe brace for foundation pit support includes a base. The top of the base has an installation groove. A connecting plate is fixedly connected to the inner wall of the installation groove, and both ends of the connecting plate are hinged to connecting seats via pivots. A first steel pipe is fixedly connected to one end of each connecting seat. An auxiliary support assembly is provided on the outer surface of the first steel pipe and one end of the base. A second steel pipe is slidably fitted onto the outer surface of the first steel pipe. An adjustment assembly is provided inside both the first and second steel pipes. A groove is provided at one end of the second steel pipe, and rotating plates are hinged to the inner walls of both sides of the groove via pivots. A first mounting plate is fixedly connected to one end of each rotating plate.

[0007] By adopting the above technical solution, the base provides a stable support foundation for the entire steel pipe brace. The connecting plate and connecting seat in the mounting groove allow the first steel pipe to rotate flexibly to adapt to different installation angle requirements. The auxiliary support components enhance the stability of the steel pipe brace, and the adjustment components can adjust the length of the steel pipe to adapt to foundation pits of different depths. The design of the groove, rotating plate, and first mounting plate facilitates connection and installation with other structures.

[0008] Optionally, the adjustment component includes a first through groove, which is formed inside the second steel pipe. A motor is fixedly connected to one inner wall of the first through groove, and the output end of the motor passes through one inner wall of the first through groove and is fixedly connected to a screw. The inner wall of the first steel pipe is provided with a threaded groove for use with the screw, and the outer surface of the screw is threadedly connected to the inner wall of the threaded groove.

[0009] By adopting the above technical solution, the motor is started, and the output end of the motor drives the screw to rotate. Since the screw is threadedly connected to the threaded groove on the inner wall of the first steel pipe, the second steel pipe can slide on the outer surface of the first steel pipe, thereby realizing the adjustment of the length between the first and second steel pipes, meeting the requirements of the steel pipe diagonal brace length under different foundation pits, and improving the applicability of the diagonal brace structure.

[0010] Optionally, the auxiliary support assembly includes a third steel pipe, one end of which is hinged to one end of the base via a pivot. A first hinge seat is fixedly connected to the outer surface of the third steel pipe, and a second hinge seat is fixedly connected to the outer surface of the first steel pipe. The inner walls of both the first and second hinge seats are hinged together with a telescopic air rod via a pivot.

[0011] By adopting the above technical solution, the auxiliary support assembly consisting of the third steel pipe, the first hinge seat, the second hinge seat, and the telescopic air rod provides additional support force for the first steel pipe, enhances the overall stability of the steel pipe diagonal brace, and prevents tilting or deformation when subjected to force.

[0012] Optionally, the base is fixedly connected to four mounting posts, all of which are conical in shape and arranged in a rectangular array.

[0013] By adopting the above technical solution, the pointed conical mounting column makes it easy to firmly fix the base to the ground, and the rectangular array of mounting columns makes the base bear the force evenly, thus improving the stability of the steel pipe brace.

[0014] Optionally, the second steel pipe has a second through groove inside, and the outer surface of the first steel pipe is slidably connected to the inner wall of the second through groove.

[0015] By adopting the above technical solution, the second channel provides space for the relative sliding of the first steel pipe and the second steel pipe, which facilitates the adjustment component to play an adjustment role.

[0016] Optionally, the outer surface of the second steel pipe has two limiting grooves, and the inner walls of the two limiting grooves are slidably connected to a connecting sleeve. The inner wall of the connecting sleeve passes through the two limiting grooves and is fixedly connected to the outer surface of the first steel pipe.

[0017] By adopting the above technical solution, the setting of the limiting groove and the connecting sleeve restricts the sliding range of the second steel pipe, prevents the second steel pipe from slipping off the first steel pipe, and ensures the stability of the adjustment process.

[0018] Optionally, the first, second, and third steel pipes are all made of corrosion-resistant materials.

[0019] By adopting the above technical solutions, the first, second, and third steel pipes made of corrosion-resistant materials can be used for a long time in harsh environments, thus extending the service life of the diagonal bracing structure.

[0020] Optionally, one end of the third steel pipe is hinged to a second mounting plate via a pivot.

[0021] By adopting the above technical solution, the second mounting plate facilitates the connection and installation of the third steel pipe with other structures, thereby improving the installation flexibility of the steel pipe brace.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. This utility model, through the adjustment component, can flexibly adjust the length of the steel pipe diagonal brace according to the specific depth and size requirements of the foundation pit, so that it can better adapt to different engineering needs.

[0024] 2. By setting auxiliary support components, this utility model improves the stability of the diagonal bracing structure in supporting the foundation pit, and at the same time makes the force more even when the diagonal bracing is applied, thus avoiding damage to the diagonal bracing structure. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of the adjustment component of this utility model.

[0027] Figure 3 This is a utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0028] Figure 4 This is a schematic diagram of the adjustment component of this utility model from another perspective.

[0029] Figure 5 This is a schematic diagram of the auxiliary support component structure of this utility model.

[0030] In the diagram, 1. Base; 2. Adjustment assembly; 21. Threaded groove; 22. Motor; 23. Screw; 24. Second through groove; 25. First through groove; 26. Limiting groove; 27. Connecting sleeve; 3. Auxiliary support assembly; 31. Third steel pipe; 32. First hinge seat; 33. Second hinge seat; 34. Telescopic air rod; 35. Second mounting plate; 4. Mounting column; 5. Mounting groove; 6. Connecting plate; 7. Connecting seat; 8. First steel pipe; 9. Second steel pipe; 10. Groove; 11. First mounting plate; 12. Rotating plate. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0032] A type of steel pipe diagonal brace for foundation pit support, referring to Figure 1 The system includes a base 1, a mounting groove 5, a connecting plate 6, a connecting seat 7, a first steel pipe 8, a second steel pipe 9, a rotating plate 12, a groove 10, a first mounting plate 11, an adjusting assembly 2, an auxiliary support assembly 3, and four mounting columns 4. The tops of the four mounting columns 4 are fixedly connected to the bottom of the base 1, and all four mounting columns 4 are conical in shape. The mounting columns 4 facilitate stable installation of the base 1. The mounting groove 5 is located at the top of the base 1, and the outer surface of the connecting plate 6 is fixedly connected to the inner wall of the mounting groove 5. The mounting groove 5 facilitates the installation of the connecting plate 6. The inner wall of the connecting seat 7 is hinged to the outer surface of the connecting plate 6 via a rotating shaft, and one end of the first steel pipe 8 is fixedly connected to one end of the connecting seat 7. The first steel pipe 8 is used in conjunction with the connecting plate 6 through the connecting seat 7. The first steel pipe 8 is adjusted at an angle. The second steel pipe 9 is slidably fitted onto the outer surface of the first steel pipe 8 via the adjusting component 2, which allows for free adjustment of the length of the steel pipe brace and improves the applicability of the brace structure. A groove 10 is formed at one end of the second steel pipe 9. A rotating plate 12 is hinged to the inner wall of the groove 10 via a rotating shaft, and one end of the rotating plate 12 is fixedly connected to one end of the first mounting plate 11, which facilitates better connection of the first mounting plate 11 with other structures. An auxiliary support component 3 is set at one end of the base 1 and on the outer surface of the first steel pipe 8. The auxiliary support component 3 provides auxiliary support during bracing, making the support force more evenly distributed and increasing the service life of the brace structure.

[0033] Reference Figure 2 and Figure 3 and Figure 4The adjusting assembly 2 includes a first through groove 25, a second through groove 24, a screw 23, a threaded groove 21, two limiting grooves 26, and a connecting sleeve 27. Both the first through groove 25 and the second through groove 24 are located inside the second steel pipe 9. A motor 22 is fixedly connected to one inner wall of the first through groove 25, and the output end of the motor 22 passes through one inner wall of the first through groove 25 and is fixedly connected to the middle of one end of the screw 23, facilitating the rotation of the screw 23 by the output end of the motor 22. The threaded groove 21 is located inside the first steel pipe 8 and is used in conjunction with the screw 23. The outer surface of the screw 23 is threadedly connected to the inner wall of the threaded groove 21, facilitating the rotation of the screw 23 in conjunction with the threaded groove 21. The distance between the first steel pipe 8 and the second steel pipe 9 is adjusted, thereby adjusting the length of the diagonal bracing steel pipe. Both limiting grooves 26 are opened on the outer surface of the second steel pipe 9, and the inner wall of the connecting sleeve 27 is slidably connected to the inner wall of the two limiting grooves 26. The inner wall of the connecting sleeve 27 is fixedly connected to the outer surface of the first steel pipe 8, which facilitates the limiting effect when connecting the first steel pipe 8 and the second steel pipe 9, and prevents the second steel pipe 9 from slipping off the first steel pipe 8. The outer surface of the first steel pipe 8 is slidably connected to the inner wall of the second through groove 24. The second through groove 24 provides space for the relative sliding of the first steel pipe 8 and the second steel pipe 9, so as to achieve the adjustment of the length of the diagonal bracing steel pipe.

[0034] Reference Figure 5 The auxiliary support assembly 3 includes a second mounting plate 35, a third steel pipe 31, a first hinge 32, a second hinge 33, and a telescopic air rod 34. One end of the third steel pipe 31 is hinged to one end of the base 1 via a pivot, and one end of the second mounting plate 35 is hinged to one end of the third steel pipe 31 via a pivot. The second mounting plate 35 facilitates a stable connection between the third steel pipe 31 and other structures. The first hinge 32 and the second hinge 33 are fixedly connected to the outer surfaces of the third steel pipe 31 and the first steel pipe 8, respectively. Both the first hinge 32 and the second hinge 33 serve as a connection. Both ends of the telescopic air rod 34 are hinged to the first hinge 32 and the second hinge 33 via pivots, respectively, so that the first hinge 32 and the second hinge 33 can be used in conjunction with the telescopic air rod 34 to provide additional support for the first steel pipe 8 and enhance the overall stability of the steel pipe brace.

[0035] Reference Figure 1 and Figure 5 The materials of the first steel pipe 8, the second steel pipe 9, and the third steel pipe 31 are all corrosion-resistant, so that the steel pipe bracing structure can be used for a long time in harsh environments, thereby improving the service life of a steel pipe bracing structure for foundation pit support.

[0036] The implementation principle of this application embodiment is as follows: First, the base 1 is installed in a suitable position in the foundation pit by the cooperation of four mounting columns 4.

[0037] Then, by adjusting component 2, the motor 22 is started. The output end of the motor 22 drives the screw 23 to rotate. The rotation of the screw 23 is used in conjunction with the threaded groove 21 inside the first steel pipe 8, so that the first steel pipe 8 slides in the second through groove 24 inside the second steel pipe 9, adjusting the first steel pipe 8 and the second steel pipe 9 to a suitable length. At the same time, the limiting groove 26 is used in conjunction with the connecting sleeve 27 to facilitate the limiting function when adjusting the first steel pipe 8 and the second steel pipe 9.

[0038] After adjusting the length of the steel pipe, the connecting seat 7 is used in conjunction with the connecting plate 6 to facilitate the rotation of the first steel pipe 8 to a certain tilt angle, and then the rotating plate 12 connected to the second steel pipe 9 is rotated to a suitable angle so that the first mounting plate 11 is connected to the appropriate position in the pit by bolts.

[0039] Next, during the diagonal bracing, the second mounting plate 35 is connected to a suitable position in the foundation pit by bolts through the auxiliary support component 3. The first hinge seat 32 and the second hinge seat 33 are used in conjunction with the telescopic air rod 34 and the third steel pipe 31 to provide additional support force for the first steel pipe 8, thereby enhancing the effect of the steel pipe diagonal bracing for foundation pit support.

[0040] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steel pipe diagonal brace for foundation pit support, comprising a base (1), characterized in that: The base (1) has an installation groove (5) at its top. A connecting plate (6) is fixedly connected to the inner wall of the installation groove (5). Both ends of the connecting plate (6) are hinged to a connecting seat (7) via a pivot. A first steel pipe (8) is fixedly connected to one end of the connecting seat (7). An auxiliary support component (3) is provided on the outer surface of the first steel pipe (8) and one end of the base (1). A second steel pipe (9) is slidably sleeved on the outer surface of the first steel pipe (8). An adjustment component (2) is provided inside the first steel pipe (8) and the second steel pipe (9). A groove (10) is provided at one end of the second steel pipe (9). A rotating plate (12) is hinged to the inner walls of both sides of the groove (10) via a pivot. A first mounting plate (11) is fixedly connected to one end of the rotating plate (12).

2. The steel pipe diagonal brace for foundation pit support according to claim 1, characterized in that: The adjustment component (2) includes a first through groove (25), which is opened inside the second steel pipe (9). A motor (22) is fixedly connected to one side of the inner wall of the first through groove (25), and the output end of the motor (22) passes through one side of the inner wall of the first through groove (25) and is fixedly connected to a screw (23). The inner wall of the first steel pipe (8) is provided with a threaded groove (21) that is used in conjunction with the screw (23), and the outer surface of the screw (23) is threadedly connected to the inner wall of the threaded groove (21).

3. The steel pipe diagonal brace for foundation pit support according to claim 1, characterized in that: The auxiliary support assembly (3) includes a third steel pipe (31), one end of which is hinged to one end of the base (1) via a pivot. A first hinge seat (32) is fixedly connected to the outer surface of the third steel pipe (31), and a second hinge seat (33) is fixedly connected to the outer surface of the first steel pipe (8). The inner walls of the first hinge seat (32) and the second hinge seat (33) are both hinged together with a telescopic air rod (34) via a pivot.

4. The steel pipe diagonal brace for foundation pit support according to claim 1, characterized in that: The base (1) is fixedly connected to four mounting posts (4), and the four mounting posts (4) are all conical in shape and are arranged in a rectangular array.

5. A steel pipe diagonal brace for foundation pit support according to claim 2, characterized in that: The second steel pipe (9) has a second through groove (24) inside, and the outer surface of the first steel pipe (8) is slidably connected to the inner wall of the second through groove (24).

6. The steel pipe diagonal brace for foundation pit support according to claim 2, characterized in that: The outer surface of the second steel pipe (9) has two limiting grooves (26), and the inner walls of the two limiting grooves (26) are slidably connected to a connecting sleeve (27). The inner wall of the connecting sleeve (27) passes through the two limiting grooves (26) and is fixedly connected to the outer surface of the first steel pipe (8).

7. The steel pipe diagonal brace for foundation pit support according to claim 3, characterized in that: The first steel pipe (8), the second steel pipe (9) and the third steel pipe (31) are all made of corrosion-resistant materials.

8. A steel pipe diagonal brace for foundation pit support according to claim 3, characterized in that: One end of the third steel pipe (31) is hinged to a second mounting plate (35) via a pivot.