Foundation pit outer protection structure

Abstract

The utility model discloses a kind of foundation pit outer protective structures, belong to foundation pit supporting technical field.It include protective frame, the bottom support of one side of protective frame is fixedly connected, installation plate is fixedly connected in protective frame, the one side of one side of protective frame is fixedly connected with connecting block, rotating cylinder is fixedly connected with the one side of connecting block away from protective frame, fixed rod is rotatably arranged in protective frame, the utility model is driven two rotating blocks and is inserted into the both ends of rotating cylinder, when two first fixed blocks are all with the upper and lower ends of rotating cylinder abut, rotating cylinder is limited action, and then make two protective frames unable to separate, to realize the butt joint between two protective frames, and after butt joint of two protective frames, two protective frames can be with rotating block as center axial rotation, to adjust the included angle between two protective frames, so that the angle between two protective frames after butt joint can be adjusted, it is convenient and fast to adjust, flexible and efficient, to improve the practicability of foundation pit outer protective structure.

Description

Technical Field

[0001] This utility model relates to an external protection structure for foundation pits, belonging to the field of foundation pit support technology. Background Technology

[0002] Supporting a foundation pit typically involves forming a ring-shaped retaining wall on the pit wall and using anchor bolts inserted horizontally or obliquely from the inside of the retaining wall into the soil outside the pit to form an anchoring structure.

[0003] Traditional external protection structures for foundation pits are usually used in a docking manner. However, existing external protection structures for foundation pits are usually docked by bolts, which is a cumbersome docking process. Furthermore, the angle of the external protection structure cannot be adjusted after installation, and adjustment requires disassembly and reinstallation. As a result, the practicality and flexibility of the external protection structure for foundation pits are relatively weak.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an external protection structure for foundation pits. It solves the problem that the existing external protection structures for foundation pits are usually used in a docking manner. The docking of existing external protection structures for foundation pits is usually fastened with bolts, which is a cumbersome docking process. Furthermore, the angle of the external protection structure cannot be adjusted after installation. Adjustment requires disassembly and reinstallation, which makes the practicality and flexibility of the external protection structure for foundation pits weak.

[0006] The technical problem to be solved by this utility model is achieved by the following technical solution: an external protection structure for foundation pits, including a protective frame, a bottom support block fixedly connected to one side of the protective frame, an installation plate fixedly connected inside the protective frame, a connecting block fixedly connected to one side of the protective frame, a rotating cylinder fixedly connected to the side of the connecting block away from the protective frame, a fixed rod rotatably arranged inside the protective frame, a bidirectional thread on the fixed rod, two oppositely arranged positioning blocks threaded onto the bidirectional thread, two oppositely arranged rotating blocks arranged on the positioning blocks, the rotating blocks being able to be inserted into the rotating cylinder, a docking mechanism provided on the protective frame, the docking mechanism being able to drive the two rotating blocks to be inserted into the two ends of the rotating cylinder respectively, and a support mechanism provided on the protective frame to support the protective frame.

[0007] By adopting the above technical solution, during use, rotating the fixing rod can drive the bidirectional thread to rotate, and the rotation of the bidirectional thread causes the two positioning blocks to move relative to or away from each other. When two protective frames need to be connected, the rotating cylinder on one protective frame is placed between the corresponding two rotating blocks on the other protective frame. Then, rotating the fixing rod drives the two positioning blocks to move relative to each other, so that the two rotating blocks can insert into the two ends of the rotating cylinder during the relative movement, thereby connecting the two protective frames and preventing them from separating. The connection is quick, requires no tools, and is simple and convenient to operate, improving the installation efficiency of the external protection structure of the foundation pit and thus enhancing the practicality of the external protection structure of the foundation pit.

[0008] This utility model is further configured such that: the docking mechanism includes two connecting grooves opened on the side of the protective frame away from the connecting block; a fixing cavity is provided inside the protective frame, the fixing cavity is located between the two connecting grooves; sliding grooves are opened on opposite sides of the fixing cavity, respectively penetrating into the two connecting grooves; a fixing rod passes through the connecting grooves, sliding grooves, and fixing cavity; and a positioning block is slidably connected to the fixing cavity. Each of the two positioning blocks is fixedly connected to a sliding block slidably connected to the sliding groove; a first fixing block is fixedly connected to the side of the sliding block away from the positioning block, slidably connected to the connecting groove; the adjacent sides of the two first fixing blocks are respectively fixedly connected to two rotating blocks; and through holes are opened on both the first fixing blocks and the sliding blocks; the sliding blocks and the first fixing blocks are slidably sleeved on the fixing rod through the through holes.

[0009] By adopting the above technical solution, when docking two protective frames, the rotating cylinder on one protective frame is first placed between the corresponding two first fixed blocks on the other protective frame. Then, the fixed rod is rotated, which drives the bidirectional thread on it to rotate. The rotation of the bidirectional thread drives the two positioning blocks threaded on it to move relative to or away from each other, thereby synchronously driving the corresponding sliding block and the first fixed block to move. When the two first fixed blocks move relative to each other, they can drive the two rotating blocks to insert into the two ends of the rotating cylinder. When both first fixed blocks abut against the upper and lower ends of the rotating cylinder, they have a limiting effect on the rotating cylinder, thus preventing the two protective frames from separating. This achieves docking between the two protective frames. After docking, the two protective frames can rotate axially around the rotating block as the center, thereby adjusting the included angle between the two protective frames. The angle between the two protective frames after docking can be adjusted, which is convenient, quick, flexible and efficient, thereby improving the practicality of the external protection structure of the foundation pit.

[0010] The present invention is further configured such that: the support mechanism includes a plurality of second fixed blocks fixedly connected to opposite sides of the protective frame, a support arm is rotatably connected to the second fixed block, a sliding support rod is slidably connected inside the support arm, one end of the sliding support rod extends through the outside of the support arm and is rotatably connected to the support block, and a support plate is fixedly connected to the support block.

[0011] By adopting the above technical solution, during use, the bottom support block is placed on the ground, and the bolts are rotated to insert it into the appropriate support holes. Then, the support arm is rotated so that the lower ends of the support arm and the sliding support rod move away from the protective frame during the rotation. In this process, the support block and the support plate are also moved away from the protective frame. When the support arm is rotated to a suitable angle, the sliding support rod is pulled out so that the lower surface of the support plate abuts against the ground, thereby adjusting the support plate to a suitable position. Then, the pin is inserted through the connecting hole so that its tip is inserted into the ground, making the lower surface of the support plate tightly abut against the ground, thereby supporting the front and rear sides of the protective frame, thus fixing the protective frame, increasing the support force of the protective frame, and thus improving the stability and protection capability of the external protection structure of the foundation pit.

[0012] The present invention is further configured as follows: an inner groove is provided in the bottom support block, and a sliding groove communicating with the inner groove is provided on the side of the bottom support block near the protective frame. A threaded rod is rotatably connected between the inner walls of the opposite sides of the inner groove. The end of the threaded rod away from the protective frame passes through the outer side of the bottom support block and is fixedly connected to a handle. A limiting block is threadedly connected to the threaded rod. The inner groove is slidably connected to the limiting block. A limiting block that is slidably connected to the sliding groove is fixedly connected to the limiting block. A limiting groove is provided on one side of the support plate, and the limiting block can be inserted into the limiting groove.

[0013] By adopting the above technical solution, during storage, the support arm is rotated to a vertical position, at which point the side of the support plate closest to the protective frame abuts against the protective frame. Then, the support plate is pushed so that its lower surface abuts against the upper surface of the bottom support block. Subsequently, the handle is rotated to drive the threaded rod to rotate. The rotation of the threaded rod synchronously drives the limiting block to slide in the inner groove, and then synchronously drives the limiting block to move back and forth. When the limiting block moves towards the protective frame, it drives the horizontal block of the limiting block to insert into the through hole and drives the vertical plate of the limiting block to abut against the side of the support plate away from the protective frame. At this time, it has a fixing effect on the support plate, and thus a fixing effect on the support arm and sliding support rod. This allows the support arm, sliding support rod, and support plate to be stored, which facilitates the storage of the external protection structure of the foundation pit, reduces the volume, and facilitates the transportation and use of the external protection structure of the foundation pit, thereby improving the practicality of the external protection structure of the foundation pit.

[0014] The beneficial effects of this utility model are as follows: When docking two protective frames, the rotating cylinder on one protective frame is first placed between the two corresponding first fixed blocks on the other protective frame. Then, the fixed rod is rotated, which drives the bidirectional thread on it to rotate. The rotation of the bidirectional thread drives the two positioning blocks threaded on it to move relative to or away from each other, thereby synchronously driving the corresponding sliding block and the first fixed block to move. When the two first fixed blocks move relative to each other, they can drive the two rotating blocks to insert into the two ends of the rotating cylinder. When both first fixed blocks abut against the upper and lower ends of the rotating cylinder, they have a limiting effect on the rotating cylinder, thus preventing the two protective frames from separating. This achieves docking between the two protective frames. After docking, the two protective frames can rotate axially around the rotating block as the center, thereby adjusting the included angle between the two protective frames. The angle between the two protective frames after docking can be adjusted, which is convenient, quick, flexible and efficient, thereby improving the practicality of the external protection structure of the foundation pit. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 Enlarged view of point A; Figure 3 This is a schematic diagram of the support arm structure of this utility model; Figure 4 This is a partial cross-sectional view of the protective frame of this utility model; Figure 5 This is a vertical cross-sectional view of the protective frame of this utility model; Figure 6 for Figure 5 Enlarged view of point B.

[0016] In the picture: 1. Protective frame; 2. Mounting plate; 3. First fixing block; 4. Rotating block; 5. Bottom support block; 6. Insert pin; 7. Rotating cylinder; 8. Connecting block; 9. Support arm; 10. Second fixing block; 11. Support plate; 12. Sliding support rod; 13. Bolt; 14. Support hole; 15. Connecting hole; 16. Connecting groove; 17. Fixing rod; 18. Bidirectional thread; 19. Sliding block; 20. Positioning block; 21. Fixing cavity; 22. Sliding groove; 23. Handle; 24. Support block; 25. Limiting block; 26. Slide groove; 27. Inner groove; 28. Limiting block; 29. ​​Threaded rod; 30. Limiting groove; 31. Through hole. Detailed Implementation

[0017] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this utility model, the following details... Figures 1 to 6 As shown, this utility model is further illustrated.

[0018] like Figures 1 to 3 As shown, this utility model is an external protection structure for a foundation pit, including a protective frame 1. A bottom support block 5 is fixedly connected to one side of the protective frame 1. An installation plate 2 is fixedly connected inside the protective frame 1. A connecting block 8 is fixedly connected to one side of the protective frame 1. A rotating cylinder 7 is fixedly connected to the side of the connecting block 8 away from the protective frame 1. A fixing rod 17 is rotatably arranged inside the protective frame 1. A bidirectional thread 18 is provided on the fixing rod 17. Two positioning blocks 20 arranged in opposite directions are threadedly connected to the bidirectional thread 18. The positioning blocks 20 are located on the two opposite threads of the bidirectional thread 18. Two rotating blocks 4 arranged in opposite directions are provided on the positioning blocks 20. The rotating blocks 4 can be inserted into the rotating cylinder 7. A docking mechanism is provided on the protective frame 1. The docking mechanism can drive the two rotating blocks 4 to be inserted into the two ends of the rotating cylinder 7 respectively. A support mechanism is provided on the protective frame 1 to support the protective frame 1.

[0019] In use, rotating the fixing rod 17 drives the bidirectional thread 18 to rotate, which in turn causes the two positioning blocks 20 to move relative to or away from each other. When two protective frames 1 need to be connected, the rotating cylinder 7 on one protective frame 1 is placed between the corresponding two rotating blocks 4 on the other protective frame 1. Then, rotating the fixing rod 17 drives the two positioning blocks 20 to move relative to each other, so that the two rotating blocks 4 can be inserted into the two ends of the rotating cylinder 7 during the relative movement, thereby connecting the two protective frames 1. This prevents the two protective frames 1 from separating, and the connection is quick, tool-free, and easy to operate, improving the installation efficiency of the external protection structure of the foundation pit and thus enhancing the practicality of the external protection structure of the foundation pit.

[0020] like Figures 3 to 4 As shown, the docking mechanism includes two connecting grooves 16 on the side of the protective frame 1 away from the connecting block 8. A fixing cavity 21 is provided inside the protective frame 1. The fixing cavity 21 is located between the two connecting grooves 16. Sliding grooves 22 are provided on opposite sides of the fixing cavity 21, respectively penetrating into the two connecting grooves 16. The fixing rod 17 passes through the connecting grooves 16, the sliding grooves 22 and the fixing cavity 21. The positioning block 20 is slidably connected to the fixing cavity 21.

[0021] like Figures 4 to 5As shown, the bidirectional thread 18 is located in the fixed cavity 21. Both positioning blocks 20 are fixedly connected to sliding blocks 19 that are slidably connected to sliding grooves 22. The side of the sliding block 19 away from the positioning block 20 is fixedly connected to a first fixing block 3 that is slidably connected to the connecting groove 16. The first fixing block 3 extends out of the outer side of the protective frame 1 through the connecting groove 16. The two adjacent sides of the two first fixing blocks 3 are fixedly connected to two rotating blocks 4 respectively. Both the first fixing block 3 and the sliding block 19 are provided with through holes 31. The sliding block 19 and the first fixing block 3 are slidably sleeved on the fixing rod 17 through the through holes 31. The bottom support block 5 is provided with a rotating groove on the side away from the protective frame 1. The end of the rotating cylinder 7 near the bottom support block 5 is inserted into the rotating groove.

[0022] When connecting two protective frames 1, first place the rotating cylinder 7 on one protective frame 1 between the two corresponding first fixed blocks 3 on the other protective frame 1. Then rotate the fixed rod 17, which drives the bidirectional thread 18 on it to rotate. The rotation of the bidirectional thread 18 drives the two positioning blocks 20 threaded on it to move relative to each other or in opposite directions, thereby synchronously driving the corresponding sliding block 19 and the first fixed block 3 to move. When the two first fixed blocks 3 move relative to each other, they can drive the two rotating blocks 4 to insert into the two ends of the rotating cylinder 7. When the two first fixed blocks 3 abut against the upper and lower ends of the rotating cylinder 7, they have a limiting effect on the rotating cylinder 7, thus preventing the two protective frames 1 from separating. This achieves the connection between the two protective frames 1. After the two protective frames 1 are connected, they can rotate axially around the rotating block 4, thereby adjusting the included angle between the two protective frames 1. The angle between the two protective frames 1 after connection can be adjusted, which is convenient, quick, flexible and efficient, thereby improving the practicality of the external protection structure of the foundation pit.

[0023] like Figure 3 As shown, the support mechanism includes multiple second fixing blocks 10 fixedly connected to opposite sides of the protective frame 1. A support arm 9 is rotatably connected to the second fixing block 10. A sliding support rod 12 is slidably connected inside the support arm 9. One end of the sliding support rod 12 extends through the outside of the support arm 9 and is rotatably connected to a support block 24. A support plate 11 is fixedly connected to the support block 24.

[0024] like Figure 3 As shown, a connecting hole 15 is provided on the support plate 11, and a pin 6 is inserted into the connecting hole 15.

[0025] like Figure 3 As shown, a plurality of support holes 14 are provided on one side of the sliding support rod 12, and a bolt 13 that can be inserted into any of the support holes 14 is threadedly connected to one side of the support arm 9.

[0026] In use, place the bottom support block 5 on the ground, rotate the bolt 13 to insert it into the appropriate support hole 14, and then rotate the support arm 9 so that the lower ends of the support arm 9 and the sliding support rod 12 move away from the protective frame 1 during the rotation. During this process, the support block 24 and the support plate 11 are also moved away from the protective frame 1. When the support arm 9 is rotated to a suitable angle, the sliding support rod 12 is pulled out so that the lower surface of the support plate 11 abuts against the ground, so that the support plate 11 is adjusted to a suitable position. Then, the pin 6 is passed through the connecting hole 15 so that its tip is inserted into the ground, so that the lower surface of the support plate 11 is tightly abutted against the ground, thereby supporting the front and rear sides of the protective frame 1, and thus fixing the protective frame 1, increasing the supporting force of the protective frame 1, and thus improving the stability and protection capability of the external protection structure of the foundation pit.

[0027] In this solution, if there is no dust protection requirement for the perimeter of the foundation pit, the mounting plate 2 can be made of materials such as metal mesh to reduce the overall weight. However, if there is a dust protection requirement in the application scenario, the mounting plate 2 can be made of metal.

[0028] like Figure 5 , Figure 6 and Figure 2 As shown, an inner groove 27 is provided in the bottom support block 5. A sliding groove 26 communicating with the inner groove 27 is provided on the side of the bottom support block 5 near the protective frame 1. A threaded rod 29 is rotatably connected between the inner walls of opposite sides of the inner groove 27. The end of the threaded rod 29 away from the protective frame 1 passes through the outer side of the bottom support block 5 and is fixedly connected to a handle 23. A limiting block 28 is threadedly connected to the threaded rod 29. The inner groove 27 is slidably connected to the limiting block 28. A limiting block 25 that is slidably connected to the sliding groove 26 is fixedly connected to the limiting block 28. A limiting groove 30 is provided on one side of the support plate 11. The limiting block 25 can be inserted into the limiting groove 30. The limiting block 25 is L-shaped. The vertical block of the limiting block 25 is slidably connected to the sliding groove 26. The horizontal block of the limiting block 25 can be inserted into the limiting groove 30.

[0029] When storing, rotate the support arm 9 to make it vertical. At this time, the side of the support plate 11 closest to the protective frame 1 abuts against the protective frame 1. Then push the support plate 11 so that the lower surface of the support plate 11 abuts against the upper surface of the bottom support block 5. Then rotate the handle 23 to drive the threaded rod 29 to rotate. The rotation of the threaded rod 29 simultaneously drives the limiting block 28 to slide in the inner groove 27, and then simultaneously drives the limiting block 25 to move back and forth. When the limiting block 25 moves towards the protective frame 1, it drives the horizontal block of the limiting block 25 to insert into the through hole 31 and drives the vertical plate of the limiting block 25 to abut against the side of the support plate 11 away from the protective frame 1. At this time, it has a fixing effect on the support plate 11, and thus a fixing effect on the support arm 9 and the sliding support rod 12. Then the support arm 9, the sliding support rod 12, and the support plate 11 can be stored, which facilitates the storage of the foundation pit external protection structure, reduces the volume, facilitates the transportation and use of the foundation pit external protection structure, and thus improves the practicality of the foundation pit external protection structure.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A protective structure for an excavation pit, comprising a protective frame (1), characterized in that: A bottom support block (5) is fixedly connected to one side of the protective frame (1), an installation plate (2) is fixedly connected inside the protective frame (1), a connecting block (8) is fixedly connected to one side of the protective frame (1), a rotating cylinder (7) is fixedly connected to the side of the connecting block (8) away from the protective frame (1), a fixed rod (17) is rotatably arranged inside the protective frame (1), a bidirectional thread (18) is provided on the fixed rod (17), two positioning blocks (20) are threadedly connected to the bidirectional thread (18), two rotating blocks (4) are arranged in opposite directions on the positioning blocks (20), the rotating blocks (4) can be inserted into the rotating cylinder (7), a docking mechanism is provided on the protective frame (1), the docking mechanism can drive the two rotating blocks (4) to be inserted into the two ends of the rotating cylinder (7) respectively, and a support mechanism is provided on the protective frame (1) to support the protective frame (1).

2. The external protection structure for a foundation pit according to claim 1, characterized in that: The docking mechanism includes two connecting grooves (16) on the side of the protective frame (1) away from the connecting block (8). A fixing cavity (21) is provided inside the protective frame (1). The fixing cavity (21) is located between the two connecting grooves (16). Sliding grooves (22) are provided on opposite sides of the fixing cavity (21) and respectively penetrate into the two connecting grooves (16). The fixing rod (17) passes through the connecting groove (16), the sliding groove (22) and the fixing cavity (21). The positioning block (20) is slidably connected to the fixing cavity (21).

3. The external protection structure for a foundation pit according to claim 2, characterized in that: Both positioning blocks (20) are fixedly connected to sliding blocks (19) that are slidably connected to sliding grooves (22). The side of the sliding block (19) away from the positioning block (20) is fixedly connected to a first fixing block (3) that is slidably connected to the connecting groove (16). The two adjacent sides of the two first fixing blocks (3) are fixedly connected to two rotating blocks (4) respectively. Both the first fixing block (3) and the sliding block (19) are provided with through holes (31). The sliding block (19) and the first fixing block (3) are slidably sleeved on the fixing rod (17) through the through holes (31).

4. The external protection structure for a foundation pit according to claim 3, characterized in that: The support mechanism includes multiple second fixed blocks (10) fixedly connected to opposite sides of the protective frame (1). A support arm (9) is rotatably connected to the second fixed block (10). A sliding support rod (12) is slidably connected inside the support arm (9). One end of the sliding support rod (12) extends through the outside of the support arm (9) and is rotatably connected to a support block (24). A support plate (11) is fixedly connected to the support block (24).

5. The external protection structure for a foundation pit according to claim 4, characterized in that: The support plate (11) has a connection hole (15) and a pin (6) is inserted into the connection hole (15).

6. The external protection structure for a foundation pit according to claim 4, characterized in that: The sliding support rod (12) has multiple support holes (14) on one side, and the support arm (9) is threaded with a bolt (13) that can be inserted into any of the support holes (14) on one side.

7. The external protection structure for a foundation pit according to claim 4, characterized in that: The bottom support block (5) has an inner groove (27) and a sliding groove (26) communicating with the inner groove (27) on the side of the bottom support block (5) near the protective frame (1). A threaded rod (29) is rotatably connected between the inner walls of the opposite sides of the inner groove (27). The end of the threaded rod (29) away from the protective frame (1) passes through the outside of the bottom support block (5) and is fixedly connected to a handle (23). A limiting block (28) is threadedly connected to the threaded rod (29). The inner groove (27) and the limiting block (28) are slidably connected. A limiting block (25) is fixedly connected to the limiting block (28) and is slidably connected to the sliding groove (26). A limiting groove (30) is opened on one side of the support plate (11). The limiting block (25) can be inserted into the limiting groove (30).

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