A composite structure for foundation pit support

Abstract

This utility model relates to the field of foundation pit support technology and discloses a foundation pit support composite structure, including an installation plate. A support column is fixedly connected to the top of the installation plate. A support mechanism is provided on the top of the support column. A force transmission plate is provided on the top of the support mechanism. A quick-installation mechanism is provided on the inner wall of the force transmission plate for rapid installation. A lifting mechanism is provided at the bottom of the installation plate. The lifting mechanism includes a top plate, and multiple rotating plates are rotatably connected to the bottom of the top plate. Multiple rotating plates are also rotatably connected to the bottom of the top plate. In this utility model, when the motor is turned on, gear one drives gear two to rotate, and simultaneously the threaded rod rotates, causing the sliding plate to slide along the fixed plate. This causes the multiple rotating plates to rotate, resulting in the top plate moving the installation plate and support column upwards and downwards. Simultaneously, deep mixing piles assist in adjusting the height.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit support technology, and in particular to a foundation pit support composite structure. Background Technology

[0002] With the acceleration of urbanization, the scale of high-rise buildings and underground transportation facilities construction is constantly expanding, and the depth and size of foundation pit excavations are continuously increasing. This places higher demands on foundation pit support technology. Traditional single foundation pit support methods, such as pile support, diaphragm wall support, and soil nailing wall support, are gradually revealing their limitations when dealing with complex geological conditions, ultra-large and ultra-deep foundation pits, and areas with sensitive surrounding environments. A single support structure cannot simultaneously meet the requirements of high safety, economy, and ease of construction. Against this backdrop, combined foundation pit support structures have emerged.

[0003] The composite structure for foundation pit support is a new type of support system that organically combines two or more different support forms. Common combinations include pile and internal bracing. This structure can effectively improve the overall stability of the foundation pit, control deformation, and adapt to complex working conditions through complementary advantages. However, the existing composite structure for foundation pit support has poor collaborative performance, resulting in uneven stress and safety hazards during the removal of internal bracing. To solve these problems, existing technologies have introduced mechanical structures such as hydraulic automatic support systems and intelligent prestressed anchor rods. Through real-time monitoring and automatic adjustment, the stress state of the structure can be optimized. However, these technologies still have drawbacks such as high equipment costs, complex maintenance, and high technical requirements for construction personnel. Furthermore, they cannot be adjusted according to foundation pits of different heights, resulting in low practicality. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a foundation pit support combination structure, which aims to improve the problem that the existing technology cannot be adjusted according to foundation pits of different heights and has low practicality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a foundation pit support combination structure, including an installation plate, a support column fixedly connected to the top of the installation plate, a support mechanism provided at the top of the support column, a force transmission plate provided at the top of the support mechanism, a quick-installation mechanism provided on the inner wall of the force transmission plate, the quick-installation mechanism being used for rapid installation, and a lifting mechanism provided at the bottom of the installation plate.

[0006] The lifting mechanism includes a top plate, with multiple rotating plates rotatably connected to the bottom of the top plate and multiple rotating plates rotatably connected to the bottom of the top plate. A sliding component is provided on the inner wall of the lower rotating plate 1.

[0007] As a further description of the above technical solution:

[0008] The quick-assembly mechanism includes a limiting block, the outer wall of which is fixedly connected to the inner wall of the force transmission plate, a U-shaped seat fixedly connected to the top of the limiting block, a connecting plate rotatably connected to the outer wall of the U-shaped seat, and a locking component provided at the bottom front side of the connecting plate.

[0009] As a further description of the above technical solution:

[0010] The sliding assembly includes a sliding plate, the front outer wall of which is fixedly connected to the inner wall of the rotating plate, a fixed plate is slidably connected to the front side of the sliding plate, and a driving assembly is provided on the top right side of the fixed plate.

[0011] As a further description of the above technical solution:

[0012] The drive assembly includes a motor, the bottom of which is fixedly connected to the top of a fixed plate. A gear one is fixedly connected to the output end of the motor. A gear two is meshed with the outer wall of the gear one. A threaded rod is fixedly connected to the inner wall of the gear two.

[0013] As a further description of the above technical solution:

[0014] The engaging assembly includes a locking block, the top of which is fixedly connected to the bottom of the connecting plate, and a wedge-shaped block is slidably connected to the outer wall of the locking block. Elastic components are provided on both the left and right sides of the wedge-shaped block.

[0015] As a further description of the above technical solution:

[0016] The elastic component includes a mounting base, the inner wall of which is slidably connected to the left and right sides of the wedge block. Multiple springs are fixedly connected to the inner wall of the mounting base. A strip plate is fixedly connected to the rear side of the mounting base, and a support component is provided at the bottom of the strip plate.

[0017] As a further description of the above technical solution:

[0018] The support assembly includes multiple deep mixing piles, with H-beams fixedly connected to the inner walls of the deep mixing piles and sliding columns slidably connected to the outer walls of the deep mixing piles.

[0019] As a further description of the above technical solution:

[0020] The support mechanism includes multiple angle steels, the bottom of which is fixedly connected to the top of the support column, a lattice steel column is fixedly connected to the outer wall of the angle steel, and the top of the angle steel is fixedly connected to the bottom of the force transmission plate.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by turning on the motor, gear one drives gear two to rotate, and at the same time the threaded rod rotates, causing the sliding plate to slide along the fixed plate, so that multiple rotating plates one and two rotate, causing the top plate to drive the mounting plate and support column to move up and down. At the same time, the deep mixing pile assists in adjusting the height, and rises and falls inside the sliding column, achieving the function of raising and lowering the foundation pit according to different heights, thus enhancing its practicality.

[0023] 2. In this utility model, by installing the limiting block into the hole of the force transmission plate, rotating the U-shaped seat, pressing the spring, and locking the locking block to the front side of the wedge block, the spring then returns to its original state, thus achieving the function of quickly installing the support column and the deep mixing pile, thereby enhancing its practicality. Attached Figure Description

[0024] Figure 1 This is a perspective view of the front side of the support column of a foundation pit support composite structure proposed in this utility model;

[0025] Figure 2 This is a partial structural breakdown diagram of the force transmission plate of the foundation pit support composite structure proposed in this utility model;

[0026] Figure 3 This is a partial structural diagram of the top plate of a foundation pit support composite structure proposed in this utility model;

[0027] Figure 4 This is a partial structural diagram of the limiting block of a foundation pit support composite structure proposed in this utility model;

[0028] Figure 5 This is a partial structural diagram of the H-beam steel of the foundation pit support composite structure proposed in this utility model.

[0029] Legend:

[0030] 1. Mounting plate; 2. Lifting mechanism; 201. Top plate; 202. Rotating plate one; 203. Rotating plate two; 204. Sliding assembly; 2041. Sliding plate; 2042. Fixed plate; 205. Drive assembly; 2051. Motor; 2052. Gear one; 2053. Gear two; 2054. Threaded rod; 3. Quick-release mechanism; 301. Limiting block; 302. U-shaped seat; 303. Connecting plate; 304. Engaging assembly; 3041. Locking block; 3042. Wedge block; 305. Elastic assembly; 3051. Mounting seat; 3052. Spring; 3053. Strip plate; 306. Support assembly; 3061. Deep mixing pile; 3062. H-beam; 3063. Sliding column; 4. Support column; 5. Support mechanism; 501. Angle steel; 502. Lattice steel column; 6. Force transmission plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see the appendix Figure 1 - Appendix Figure 3 This utility model provides an embodiment of a foundation pit support combination structure, including an installation plate 1, a support column 4 fixedly connected to the top of the installation plate 1, a support mechanism 5 provided on the top of the support column 4, the support mechanism 5 including multiple angle steels 501, the angle steels 501 serving to connect and reinforce, the bottom of the angle steels 501 fixedly connected to the top of the support column 4, a lattice steel column 502 fixedly connected to the outer wall of the angle steels 501, the top of the angle steels 501 fixedly connected to the bottom of the force transmission plate 6, the top of the support mechanism 5 provided with the force transmission plate 6, the inner wall of the force transmission plate 6 provided with a quick-installation mechanism 3, the quick-installation mechanism 3 being used for rapid installation, the quick-installation mechanism 3 being used for rapid installation of other components, improving construction efficiency, and a lifting mechanism 2 provided at the bottom of the installation plate 1;

[0033] The lifting mechanism 2 includes a top plate 201, a plurality of rotating plates 1 202 are rotatably connected to the bottom of the top plate 201, and a plurality of rotating plates 203 are rotatably connected to the bottom of the top plate 201. The height of the rotating plates 1 202 and the rotating plates 203 is adjusted by rotation. A sliding component 204 is provided on the inner wall of the lower rotating plate 1 202.

[0034] Specifically, the mounting plate 1 serves as the base of the entire support structure, providing stable support. A support column 4 is fixedly connected to its top, transmitting the supporting force to the upper structure. A support mechanism 5 is installed at the top of the support column 4, forming the core support component of the entire support structure. Its bottom is fixedly connected to the top of the support column 4. A lattice steel column 502 is fixedly connected to the outer wall of the angle steel 501, enhancing the overall rigidity and stability of the structure. The top of the angle steel 501 is fixedly connected to the bottom of the force transmission plate 6, which transmits the force from above. Moving down to the lower structure, the top of the support mechanism 5 is provided with a force transmission plate 6, and the inner wall of the force transmission plate 6 is provided with a quick-installation mechanism 3. The bottom of the mounting plate 1 is provided with a lifting mechanism 2. The lifting mechanism 2 is used to adjust the height of the entire support structure to adapt to foundation pits of different depths. The lifting mechanism 2 includes a top plate 201, which serves as the top support of the lifting mechanism. Multiple rotating plates 1 202 and 203 are rotatably connected to its bottom. The inner wall of the lower rotating plate 1 202 is provided with a sliding component 204, which allows the rotating plate to slide smoothly and achieve height adjustment.

[0035] Please see the appendix Figure 3 - Appendix Figure 5 The quick-installation mechanism 3 includes a limiting block 301. The outer wall of the limiting block 301 is fixedly connected to the inner wall of the force transmission plate 6. A U-shaped seat 302 is fixedly connected to the top of the limiting block 301. A connecting plate 303 is rotatably connected to the outer wall of the U-shaped seat 302. A locking component 304 is provided at the bottom front side of the connecting plate 303. The locking component 304 is used to realize quick locking connection. The locking component 304 includes a locking block 3041. The top of the locking block 3041 is fixedly connected to the bottom of the connecting plate 303. A wedge block 3042 is slidably connected to the outer wall of the locking block 3041. The wedge block 3042 is easy to lock and fix the locking block 3041 by its special shape. Elastic components 305 are provided on both the left and right sides of the wedge block 3042.

[0036] Specifically, the quick-installation mechanism 3 includes a limiting block 301, which serves to position and restrict movement. Its outer wall is fixedly connected to the inner wall of the force transmission plate 6. A U-shaped seat 302 is fixedly connected to the top of the limiting block 301. The U-shaped seat 302 serves as the base for the connecting component. A connecting plate 303 is rotatably connected to its outer wall. The connecting plate 303 is used to connect other components that need to be installed quickly. The locking assembly 304 includes a locking block 3041, which is used to lock into the corresponding position to achieve fixation. The top of the locking block 3041 is fixedly connected to the bottom of the connecting plate 303. A wedge block 3042 is slidably connected to the outer wall of the locking block 3041. Elastic components 305 are provided on both the left and right sides of the wedge block 3042. The elastic components 305 provide elastic force, making the locking more stable and easy to disassemble.

[0037] Please see the appendix Figure 2 - Appendix Figure 4 The sliding assembly 204 includes a sliding plate 2041. The front outer wall of the sliding plate 2041 is fixedly connected to the inner wall of the rotating plate 202. A fixed plate 2042 is slidably connected to the front side of the sliding plate 2041. A driving assembly 205 is provided on the top right side of the fixed plate 2042. The driving assembly 205 includes a motor 2051, which serves as a power source. The bottom of the motor 2051 is fixedly connected to the top of the fixed plate 2042. A gear 2052 is fixedly connected to the output end of the motor 2051. A gear 2053 is meshed with the outer wall of the gear 2052. A threaded rod 2054 is fixedly connected to the inner wall of the gear 2053. The threaded rod 2054 drives the sliding plate 2041 to slide by rotation.

[0038] Specifically, the sliding assembly 204 includes a sliding plate 2041, which slides within the rotating plate to achieve height adjustment. Its front outer wall is fixedly connected to the inner wall of the rotating plate 202. A fixed plate 2042 is slidably connected to the front side of the sliding plate 2041, providing a fixed track for sliding. A drive assembly 205 is provided on the top right side of the fixed plate 2042, which provides power to make the sliding plate slide. Its bottom is fixedly connected to the top of the fixed plate 2042. A gear 2052 is fixedly connected to the output end of the motor 2051, which is used to transmit power. A gear 2053 is meshed with the outer wall of the gear 2052, which further transmits power and changes the transmission direction.

[0039] Please see the appendix Figure 2 - Appendix Figure 4 The elastic component 305 includes a mounting base 3051, the inner walls of which are slidably connected to the left and right sides of the wedge block 3042. Multiple springs 3052 are fixedly connected to the inner wall of the mounting base 3051, and the springs 3052 provide elastic restoring force. A strip plate 3053 is fixedly connected to the rear side of the mounting base 3051. A support component 306 is provided at the bottom of the strip plate 3053. The support component 306 is used to enhance the support effect of the foundation pit. The support component 306 includes multiple deep mixing piles 3061. The deep mixing piles 3061 penetrate deep into the ground to provide stable support. H-beams 3062 are fixedly connected to the inner wall of the deep mixing piles 3061, and sliding columns 3063 are slidably connected to the outer wall of the deep mixing piles 3061.

[0040] Specifically, the elastic component 305 includes a mounting base 3051, which serves as the mounting base for the elastic component. The inner walls of the mounting base 3051 are slidably connected to the left and right sides of the wedge block 3042. Multiple springs 3052 are fixedly connected to the inner wall of the mounting base 3051. A strip plate 3053 is fixedly connected to the rear side of the mounting base 3051. The strip plate 3053 serves as a connection and support. A support component 306 is provided at the bottom of the strip plate 3053. The support component 306 includes multiple deep mixing piles 3061. H-beams 3062 are fixedly connected to the inner walls of the deep mixing piles 3061. The H-beams 3062 enhance the strength and stability of the deep mixing piles. Sliding columns 3063 are slidably connected to the outer walls of the deep mixing piles 3061. The sliding columns 3063 facilitate sliding within the deep mixing piles to adapt to height adjustment.

[0041] Working principle: By turning on the motor 2051, the gear 1 2052 drives the gear 2 2053 to rotate, and at the same time the threaded rod 2054 rotates, causing the sliding plate 2041 to slide along the fixed plate 2042, so that multiple rotating plates 1 202 and rotating plates 203 rotate, causing the top plate 201 to drive the mounting plate 1 and the support column 4 to move up and down. At the same time, the deep mixing pile 3061 assists in adjusting the height, rising and falling inside the sliding column 3063, achieving the function of raising and lowering the foundation pit according to different heights, thus enhancing its practicality.

[0042] By installing the limiting block 301 into the hole of the force transmission plate 6, rotating the U-shaped seat 302, pressing the spring 3052, and engaging the locking block 3041 with the front side of the wedge block 3042, the spring 3052 then returns to its original state, thus achieving the function of quickly installing the support column 4 and the deep mixing pile 3061, enhancing its practicality.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A foundation pit support composite structure comprising a mounting plate (1), characterized in that: The top of the mounting plate (1) is fixedly connected to a support column (4), the top of the support column (4) is provided with a support mechanism (5), the top of the support mechanism (5) is provided with a force transmission plate (6), the inner wall of the force transmission plate (6) is provided with a quick-installation mechanism (3), the quick-installation mechanism (3) is used for quick installation, and the bottom of the mounting plate (1) is provided with a lifting mechanism (2). The lifting mechanism (2) includes a top plate (201), a plurality of rotating plates (202) are rotatably connected to the bottom of the top plate (201), a plurality of rotating plates (203) are rotatably connected to the bottom of the top plate (201), and a sliding assembly (204) is provided on the inner wall of the lower rotating plate (202).

2. The foundation pit support composite structure according to claim 1, characterized in that: The quick-installation mechanism (3) includes a limiting block (301), the outer wall of the limiting block (301) is fixedly connected to the inner wall of the force transmission plate (6), a U-shaped seat (302) is fixedly connected to the top of the limiting block (301), a connecting plate (303) is rotatably connected to the outer wall of the U-shaped seat (302), and a locking assembly (304) is provided on the bottom front side of the connecting plate (303).

3. The foundation pit support composite structure according to claim 1, characterized in that: The sliding assembly (204) includes a sliding plate (2041), the front outer wall of the sliding plate (2041) is fixedly connected to the inner wall of the rotating plate (202), a fixed plate (2042) is slidably connected to the front side of the sliding plate (2041), and a driving assembly (205) is provided on the top right side of the fixed plate (2042).

4. The foundation pit support composite structure according to claim 3, characterized in that: The drive assembly (205) includes a motor (2051), the bottom of which is fixedly connected to the top of a fixing plate (2042). A gear 1 (2052) is fixedly connected to the output end of the motor (2051). A gear 2 (2053) is meshed with the outer wall of the gear 1 (2052). A threaded rod (2054) is fixedly connected to the inner wall of the gear 2 (2053).

5. The foundation pit support composite structure according to claim 2, characterized in that: The engaging assembly (304) includes a locking block (3041), the top of which is fixedly connected to the bottom of the connecting plate (303), and a wedge block (3042) is slidably connected to the outer wall of the locking block (3041). Elastic components (305) are provided on both the left and right sides of the wedge block (3042).

6. The foundation pit support composite structure according to claim 5, characterized in that: The elastic component (305) includes a mounting base (3051), the inner walls of which are slidably connected to the left and right sides of the wedge block (3042), a plurality of springs (3052) are fixedly connected to the inner wall of the mounting base (3051), a strip plate (3053) is fixedly connected to the rear side of the mounting base (3051), and a support component (306) is provided at the bottom of the strip plate (3053).

7. The foundation pit support composite structure according to claim 6, characterized in that: The support assembly (306) includes a plurality of deep mixing piles (3061), the inner wall of the deep mixing piles (3061) is fixedly connected with H-beams (3062), and the outer wall of the deep mixing piles (3061) is slidably connected with sliding columns (3063).

8. The retaining wall structure according to claim 1, wherein: The support mechanism (5) includes multiple angle steels (501), the bottom of the angle steels (501) is fixedly connected to the top of the support column (4), the outer wall of the angle steels (501) is fixedly connected to a lattice steel column (502), and the top of the angle steels (501) is fixedly connected to the bottom of the force transmission plate (6).

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