A deep foundation pit slope temporary support frame

Abstract

The application relates to the field of deep foundation pit slope support, and discloses a deep foundation pit slope temporary support frame. In the application, a bottom frame is provided with a plurality of anchoring rods fixedly connected to the lower surface of the bottom frame, and a through groove is arranged in the inner surface of the bottom frame. The anchoring rods installed below the bottom frame can fix the bottom frame at the bottom of the foundation pit, so that the bottom frame can be more stably inserted on the surface of the foundation pit, and the vertical rod support support plate can be prevented from being unstable due to loosening. The through groove can facilitate the reciprocating movement of the inner screw blocks, so that the automatic resetting and storage of the vertical rods can be realized. The driving motor can drive the inner reciprocating lead screws to rotate, so that the outer screw blocks can reciprocate on the surface of the reciprocating lead screws. The support plate can be supported, and the automatic resetting and storage can be realized.

Description

Technical Field

[0001] This application belongs to the field of deep foundation pit slope protection technology, specifically a temporary support frame for deep foundation pit slope. Background Technology

[0002] Deep foundation pit slopes are a combination of foundation pit engineering and slope protection technology. They refer to sloping protection structures set up around foundation pits with an excavation depth exceeding 5 meters or complex geological conditions. They are mainly used to ensure the stability of the foundation pit and the safety of the surrounding environment. Deep foundation pit slopes are sloping structures set up to prevent soil collapse and ensure the safety of surrounding buildings and pipelines. Their design needs to comprehensively consider factors such as geological conditions, hydrological environment and construction technology. Stability control is achieved through support structures (such as piles, diaphragm walls, sheet piles, etc.). Temporary support frames are transitional support facilities used in underground engineering before the permanent support is erected, mainly to ensure construction safety.

[0003] However, while common support frames satisfy the requirements of easy adjustment of the support angle and easy disassembly and reuse, the lack of an automatic reset mechanism in actual use leads to inconvenient storage after use, thus reducing the overall effectiveness of the support frame. Utility Model Content

[0004] The purpose of this application is to provide a temporary support frame for deep foundation pit slopes in order to solve the aforementioned problem of convenient storage.

[0005] The technical solution adopted in this application is as follows: a temporary support frame for deep foundation pit slope, including a base frame, a plurality of anchor rods fixedly connected to the lower surface of the base frame, a through groove opened on the inner side surface of the base frame, a drive motor installed on the outer rear surface of the base frame, a reciprocating screw connected to the inner side surface of the drive motor, a threaded block penetrating the outer side surface of the reciprocating screw, and a limit plate fixedly installed on the top surface of the reciprocating screw.

[0006] By adopting the above technical solution, multiple anchoring rods installed below the base frame can fix the base frame to the bottom of the pit, allowing the base frame to be more firmly inserted into the surface of the pit. This prevents the vertical support plate from becoming unstable due to loosening. The through slots facilitate the reciprocating movement of the inner threaded blocks, enabling automatic reset and storage of the vertical rods. The installed drive motor drives the reciprocating screw connected to the inner side to rotate, which in turn drives the outer threaded blocks to reciprocate on the surface of the reciprocating screw. This not only provides support for the support plate but also enables automatic reset and storage, thus enhancing ease of use. The installed limit plate prevents misalignment caused by excessive movement of the threaded blocks, ensuring the normal operation of the device and making it versatile and practical.

[0007] In a preferred embodiment, connecting shafts are mounted on the upper two sides of the threaded block, and fixing lugs are connected to the inner surfaces of the connecting shafts.

[0008] By adopting the above technical solution, the threaded block can move inside the base frame, thereby driving the fixed ear plate above to move and adjust. This allows the connecting shaft to rotate and adjust the support angle of the vertical rod. In turn, the cooperation between the base frame and the vertical rod can ensure the stability of the support plate, making it practical and adjustable.

[0009] In a preferred embodiment, a top rod is fitted onto the outer surface of the fixed ear plate, and a top rod shaft is connected through the inner surface of the top end of the top rod.

[0010] By adopting the above technical solution, the adjustment and movement of the top rod can drive the top rod shaft to rotate and be fixed inside the clearance groove, so that the vertical rod can provide support for the support plate. The adjustment and movement of the top rod can cause the vertical rod shaft to rotate inside the base frame, so that the vertical rod can form a connecting support at different angles, giving it both support and fixation.

[0011] In a preferred embodiment, a vertical rod is connected to the upper surface of the front end of the base frame, and a vertical rod pivot is connected through the lower inner surface of the vertical rod.

[0012] By adopting the above technical solution, the installed vertical rods can provide support for the protective plate during the tilting process, and the angle of the vertical rods can be adjusted by rotating the vertical rod shaft, thus adapting to slopes with different inclinations and making it comprehensive and adaptable.

[0013] In a preferred embodiment, an clearance groove is provided on the upper inner surface of the vertical rod, and the clearance groove is rotatably connected to the top rod shaft.

[0014] By adopting the above technical solution, the top rod can have sufficient space to rotate and adjust by opening a relief groove on the surface of the vertical rod, so that it can support deep foundation pits with different slopes. The installed top rod shaft can rotate inside the relief groove, thereby meeting the support effect at different angles and making it adaptable and versatile.

[0015] In a preferred embodiment, fixing plates are installed on both sides of the vertical rod, and threaded grooves are formed on the inner side surface of the fixing plates.

[0016] By adopting the above technical solution, multiple fixing plates can be installed on both sides of the vertical rod to fix it to the outer surface of the slope protection plate, thereby enabling it to play a supporting role. The threaded groove on the inner surface of the fixing plate makes it easy for construction workers to insert the threaded bottom rod into its surface, giving it stability and adaptability.

[0017] In a preferred embodiment, a threaded bottom rod is connected to the inner surface of the threaded groove, and a limit sleeve is provided on the top surface of the threaded bottom rod.

[0018] By adopting the above technical solution, the threaded bottom rod can be used to fix the support plate on the slope surface, thereby enhancing the stability of the support plate. Setting a limiting sleeve on the surface of the threaded bottom rod can prevent misalignment and detachment caused by excessive movement of the threaded bottom rod, thus giving it stability and limiting properties.

[0019] In a preferred embodiment, a positioning plate is fixedly installed on the upper surface of the vertical rod, a fixing bolt is connected through the inner surface of the positioning plate, and a limit nut is provided on the upper top surface of the fixing bolt.

[0020] By adopting the above technical solution, construction workers can assemble and fix the positioning plate to the support plate on the slope surface, thereby achieving double fixation of the support plate on the slope surface. This ensures that the support plate can stably support the slope and avoid slope collapse during the support process, thus ensuring safety and stability.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are: In this application, multiple anchoring rods installed below the base frame can fix the base frame to the bottom of the pit, allowing the base frame to be more firmly inserted into the surface of the pit. This prevents the vertical support plate from becoming unstable due to loosening. The through slots facilitate the reciprocating movement of the inner threaded blocks, enabling automatic reset and storage of the vertical rods. The installed drive motor drives the reciprocating screw connected to the inner side to rotate, which in turn drives the outer threaded blocks to reciprocate on the surface of the reciprocating screw. This not only provides support for the support plate but also enables automatic reset and storage, thus enhancing ease of use. The installed limit plate prevents misalignment caused by excessive movement of the threaded blocks, ensuring the normal operation of the device and making it versatile and practical. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the support frame structure in this application; Figure 3 This is a schematic diagram of the positioning plate structure in this application; Figure 4 This is a schematic diagram of the vertical rod structure in this application; Figure 5 This is a schematic diagram of the push rod structure in this application. Figure 6 This is a schematic diagram of the base frame structure in this application.

[0023] The markings in the diagram are: 1. Base frame; 2. Anchor rod; 3. Vertical rod; 4. Top rod; 5. Fixing bolt; 6. Limiting nut; 7. Positioning plate; 8. Fixing plate; 9. Threaded groove; 10. Clearance groove; 11. Threaded bottom rod; 12. Limiting rod sleeve; 13. Vertical rod pivot; 14. Threaded block; 15. Connecting pivot; 16. Fixing ear plate; 17. Top rod pivot; 18. Drive motor; 19. Through groove; 20. Reciprocating screw; 21. Limiting plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Example: Reference Figure 1-6A temporary support frame for deep foundation pit slope includes a base frame 1. Multiple anchor rods 2 are fixedly connected to the lower surface of the base frame 1. A through groove 19 is opened on the inner surface of the base frame 1. A drive motor 18 is installed on the outer surface of the rear end of the base frame 1. A reciprocating screw 20 is connected to the inner surface of the drive motor 18. A threaded block 14 is connected through the outer surface of the reciprocating screw 20. A limit plate 21 is fixedly installed on the top surface of the reciprocating screw 20. Multiple anchor rods 2 installed below the base frame 1 can fix the base frame 1 to the bottom of the pit, allowing the base frame 1 to be more firmly inserted into the surface of the pit. This prevents the vertical rod 3 from becoming unstable and supporting the support plate. The through groove 19 allows the inner threaded block 14 to move back and forth, enabling the automatic reset and storage of the vertical rod 3. The installed drive motor 18 drives the inner reciprocating screw 20 to rotate, which in turn drives the outer threaded block 14 to move back and forth on the surface of the reciprocating screw 20. This not only supports the support plate but also enables automatic reset and storage, enhancing ease of use. The installed limit plate 21 prevents the threaded block 14 from moving excessively and causing misalignment, ensuring the normal operation of the device and making it versatile and practical.

[0026] Reference Figure 5 Connecting shafts 15 are mounted on the upper two sides of the threaded block 14, and fixed ear plates 16 are connected to the inner surface of the connecting shafts 15. By moving the threaded block 14 inside the base frame 1, it can drive the fixed ear plates 16 above to move and adjust, thereby allowing the connecting shafts 15 to rotate and adjust the support angle of the vertical rod 3. This ensures the stability of the support plate through the cooperation between the base frame 1 and the vertical rod 3, making it practical and adjustable.

[0027] Reference Figure 1-5 A top rod 4 is fitted onto the outer surface of the fixed ear plate 16, and a top rod shaft 17 is connected through the inner surface of the top end of the top rod 4. By adjusting the movement of the top rod 4, the top rod shaft 17 can be rotated and fixed inside the clearance groove 10, thereby allowing the vertical rod 3 to support the support plate. By adjusting the movement of the top rod 4, the vertical rod shaft 17 can be rotated inside the base frame 1, thereby allowing the vertical rod 3 to form connecting support members at different angles, giving it both support and fixation.

[0028] Reference Figure 1-4A vertical rod 3 is connected to the upper surface of the front end of the base frame 1, and a vertical rod pivot 13 is connected through the lower inner surface of the vertical rod 3. The installed vertical rod 3 can provide support for the protective plate during the tilting process, and the angle of the vertical rod 3 can be adjusted by rotating the vertical rod pivot 13, so as to adapt to slopes with different inclinations, making it comprehensive and adaptable.

[0029] Reference Figure 1-4 An clearance groove 10 is provided on the inner surface of the upper part of the vertical rod 3, and the clearance groove 10 is rotatably connected to the top rod shaft 17. By providing the clearance groove 10 on the surface of the vertical rod 3, the top rod 4 has sufficient space to rotate and adjust, thus enabling it to support deep foundation pits with different slopes. The installed top rod shaft 17 can rotate inside the clearance groove 10, thereby meeting the support effect at different angles, making it adaptable and versatile.

[0030] Reference Figure 1-4 The vertical rod 3 has fixing plates 8 installed on both sides of its surface, and the inner surface of the fixing plates 8 has threaded grooves 9. By installing multiple fixing plates 8 on both sides of the vertical rod 3, it can be fixedly installed on the outer surface of the slope protection board, thereby enabling it to play a supporting role. The threaded grooves 9 on the inner surface of the fixing plates 8 make it easy for construction workers to insert the threaded bottom rod 11 into its surface, giving it stability and adaptability.

[0031] Reference Figure 4 A threaded bottom rod 11 is connected to the inner surface of the threaded groove 9, and a limiting sleeve 12 is provided on the top surface of the threaded bottom rod 11. The threaded bottom rod 11 can be used to fix the support plate on the slope surface, thereby enhancing the stability of the support plate. The limiting sleeve 12 on the surface of the threaded bottom rod 11 can prevent the threaded bottom rod 11 from moving excessively and causing misalignment and detachment, thus giving it stability and limiting properties.

[0032] Reference Figure 1-3 A positioning plate 7 is fixedly installed on the upper surface of the vertical rod 3. A fixing bolt 5 is connected through the inner surface of the positioning plate 7, and a limit nut 6 is provided on the top surface of the fixing bolt 5. By assembling and snapping the positioning plate 7 to the support plate on the slope surface, the construction workers can achieve double fixation of the support plate on the slope surface, ensuring that the support plate can stably support the slope and avoid slope collapse during the support process, thus ensuring safety and stability.

[0033] The implementation principle of this application for a temporary support frame for deep foundation pit slope is as follows: Multiple anchor rods 2 installed below the base frame 1 fix the base frame 1 to the bottom of the foundation pit, allowing the base frame 1 to be more firmly inserted into the surface of the foundation pit. This prevents the vertical rods 3 from becoming unstable and hindering the support plate. The through slot 19 facilitates the reciprocating movement of the inner threaded block 14, enabling automatic reset and storage of the vertical rod 3. The installed drive motor 18 drives the inner reciprocating screw 20 to rotate, causing the outer threaded block 14 to reciprocate on the surface of the reciprocating screw 20. This not only provides support for the support plate but also allows for automatic reset and storage, enhancing ease of use. The installed limiting plate 21 prevents misalignment caused by excessive movement of the threaded block 14, ensuring the device can operate normally and providing versatility and practicality.

[0034] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A temporary support frame for deep foundation pit slopes, comprising a base frame (1), characterized in that: Multiple anchor rods (2) are fixedly connected to the lower surface of the base frame (1). A through groove (19) is opened on the inner surface of the base frame (1). A drive motor (18) is installed on the outer rear surface of the base frame (1). A reciprocating screw (20) is connected to the inner surface of the drive motor (18). A threaded block (14) is connected through the outer surface of the reciprocating screw (20). A limit plate (21) is fixedly installed on the top surface of the reciprocating screw (20).

2. The temporary support frame for deep foundation pit slopes as described in claim 1, characterized in that: The upper two sides of the threaded block (14) are fitted with connecting shafts (15), and the inner side of the connecting shafts (15) is connected with fixing lugs (16).

3. The temporary support frame for deep foundation pit slopes as described in claim 2, characterized in that: The outer surface of the fixed ear plate (16) is fitted with a top rod (4), and the inner surface of the top end of the top rod (4) is connected through a top rod shaft (17).

4. The temporary support frame for deep foundation pit slopes as described in claim 1, characterized in that: A vertical rod (3) is connected to the upper surface of the front end of the base frame (1), and a vertical rod pivot (13) is connected through the lower inner surface of the vertical rod (3).

5. A temporary support frame for deep foundation pit slopes as described in claim 4, characterized in that: An clearance groove (10) is provided on the upper inner surface of the vertical rod (3), and the clearance groove (10) is rotatably connected to the top rod shaft (17).

6. A temporary support frame for deep foundation pit slopes as described in claim 5, characterized in that: The vertical rod (3) has fixing plates (8) installed on both sides of its surface, and the inner surface of the fixing plates (8) has threaded grooves (9).

7. A temporary support frame for deep foundation pit slopes as described in claim 6, characterized in that: The inner surface of the threaded groove (9) is connected to a threaded bottom rod (11), and the top surface of the threaded bottom rod (11) is provided with a limit rod sleeve (12).

8. A temporary support frame for deep foundation pit slopes as described in claim 4, characterized in that: A positioning plate (7) is fixedly installed on the upper surface of the vertical rod (3), and a fixing bolt (5) is connected through the inner surface of the positioning plate (7). A limit nut (6) is provided on the upper top surface of the fixing bolt (5).

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