Deep foundation pit supporting structure

Abstract

The utility model discloses a deep foundation pit supporting structure, relates to the technical field of foundation pit supporting, and provides the following scheme aiming at the problems that in the prior art, in order to facilitate rapid installation, the supporting strength is small, supporting is not stable, and hidden dangers are brought to supporting work, the deep foundation pit supporting structure comprises a base, fixing frames which are annularly distributed at equal intervals are fixed to the top of the base, fixing discs are fixed to the top ends of the fixing frames, and the fixing discs are in threaded connection with screws. The base is placed at the bottom in a foundation pit, then the threaded rod is rotated through the rotating wheel handle so that the threaded rod can rotate on the top of the base, and the supporting assembly is kept at the horizontal position along with rotation of the threaded rod through rotating fit between the supporting assembly and the movable ring and rotating fit between the supporting assembly and the fixing frame. Then the lead screw is rotated, the position distance between the I-shaped plate and the fixing frame is adjusted, finally, the supporting plate and the I-shaped plate are connected and fixed, and overall installation is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support, in particular to a deep foundation pit support structure. Background Technique

[0002] A foundation pit refers to the underground space excavated for the construction of building foundations and basements. The foundation pit is a temporary project, and its function is to provide a space for the masonry operation of the foundation to be carried out at the designated position according to the design. During the excavation process of the foundation pit, the deformation of the surrounding soil mass will inevitably be caused, and it will have an impact on the underground pipelines of the surrounding buildings. Seriously, it will endanger the normal use and safety of the underground pipelines. In order to avoid this situation, a foundation pit support structure will be set up in the foundation pit design and excavation construction to stabilize the safety of the foundation pit.

[0003] The installation method of the existing foundation pit support structure is for the convenience of quick installation, resulting in a small support strength and unstable support, thus bringing hidden dangers to the support work. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a deep foundation pit support structure, which overcomes the deficiencies of the prior art and effectively solves the problem that in the prior art, for the convenience of quick installation, the support strength is small and the support is unstable, thus bringing hidden dangers to the support work.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A deep foundation pit support structure includes a base. A fixed frame is fixedly arranged at the top of the base in an annular and equally spaced manner, and fixed disks are fixedly arranged at the tops of the fixed frames. A screw rod is rotatably connected to the fixed disk, and a movable ring is screwed on the rod wall of the screw rod. The outer wall of the movable ring is connected with support components distributed at equal intervals. The support component includes a connecting pipe, a lead screw screwed at one end inside the connecting pipe, a connecting block rotatably connected to one end of the lead screw, a rotating block rotatably connected to one end of the connecting block, an I-shaped plate fixed to one end of the rotating block, and a support plate fixed to the outer wall of one side of the I-shaped plate.

[0007] By placing the base at the bottom of the foundation pit, then rotating the screw rod through the rotating wheel handle, so that the screw rod rotates on the top of the base. Due to the rotational cooperation between the support component and the movable ring, and the rotational cooperation between the support component and the fixed frame, as the screw rod rotates, the support component maintains a horizontal position. Then rotate the lead screw to adjust the position distance between the I-shaped plate and the fixed frame. Finally, connect and fix the support plate to the I-shaped plate to complete the overall installation.

[0008] Preferably, the bottom end of the screw rod is rotatably connected to the base, and a rotating wheel handle is fixed to the top end of the screw rod.

[0009] Rotate the screw rod through the rotating wheel handle so that the screw rod rotates on the top of the base.

[0010] Preferably, U-shaped blocks are fixedly arranged on the annular outer wall of the movable ring at equal intervals, and both inner walls of the two sides of the U-shaped block are rotatably connected to one end of the connecting pipe.

[0011] The supporting component is rotatably connected through the U-shaped block fixed on the outer wall of the movable ring.

[0012] Preferably, a strip-shaped groove is formed on one inner wall of the fixing frame, and convex rods are fixedly arranged at the other ends of the outer walls on both sides of the connecting pipe. The convex rods are rotatably connected to the inner wall of the strip-shaped groove.

[0013] The supporting component is rotatably connected to the fixing frame through the arranged strip-shaped groove and convex rod.

[0014] Preferably, a rotating ring is sleeved and fixed at one end of the screw rod wall close to the connecting block.

[0015] The screw rod is rotated through the arranged rotating ring.

[0016] Preferably, mounting holes are formed at the four corners of the outer wall on one side of the I-shaped plate, and the I-shaped plate and the support plate are fixedly connected by bolts.

[0017] The support plate is fixedly connected to the I-shaped plate by bolts.

[0018] The beneficial effects of the present utility model are as follows:

[0019] Place the base at the bottom of the foundation pit, then rotate the screw rod through the rotating wheel handle so that the screw rod rotates on the top of the base. Due to the rotational cooperation between the supporting component and the movable ring, and the rotational cooperation between the supporting component and the fixing frame, as the screw rod rotates, the supporting component maintains a horizontal position. Then rotate the screw rod to adjust the position distance between the I-shaped plate and the fixing frame. Finally, connect and fix the support plate and the I-shaped plate to complete the overall installation, effectively solving the problem in the prior art that in order to facilitate quick installation, the supporting strength is small and the support is unstable, thus bringing hidden dangers to the supporting work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the top structure of the base of a deep foundation pit supporting structure proposed by the present utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the supporting component of a deep foundation pit supporting structure proposed by the present utility model;

[0022] Figure 3 It is a schematic diagram of the overall structure of a deep foundation pit supporting structure proposed by the present utility model.

[0023] In the figure: 1, base; 2, fixing frame; 3, fixing plate; 4, screw rod; 5, movable ring; 6, support assembly; 7, U-shaped block; 8, connecting pipe; 9, convex rod; 10, lead screw; 11, connecting block; 12, rotating block; 13, I-shaped plate; 14, support plate. Specific implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] Embodiment:

[0026] Referring to Figures 1-3 , a deep foundation pit support structure includes a base 1. Fixing frames 2 are fixed at the top of the base 1 in an annular and equidistant distribution. Fixing plates 3 are fixed at the tops of the fixing frames 2. The fixing plates 3 are rotatably connected to a screw rod 4. A movable ring 5 is screwed on the rod wall of the screw rod 4. The outer wall of the movable ring 5 is connected with support assemblies 6 distributed at equal distances. The support assembly 6 includes a connecting pipe 8, a lead screw 10 screwed at one end inside the connecting pipe 8, a connecting block 11 rotatably connected to one end of the lead screw 10, a rotating block 12 rotatably connected to one end of the connecting block 11, an I-shaped plate 13 fixed at one end of the rotating block 12, and a support plate 14 fixed on the outer wall of one side of the I-shaped plate 13;

[0027] The bottom end of the screw rod 4 is rotatably connected to the base 1. A rotating wheel handle is fixed at the top end of the screw rod 4. The screw rod 4 is rotated through the rotating wheel handle, so that the screw rod 4 rotates on the top of the base 1. U-shaped blocks 7 are fixed on the annular outer wall of the movable ring 5 at equal distances. The inner walls on both sides of the U-shaped block 7 are rotatably connected to one end of the connecting pipe 8. The support assembly 6 is rotatably connected through the U-shaped block 7 fixed on the outer wall of the movable ring 5;

[0028] A strip-shaped groove is opened on the inner wall of one side of the fixing frame 2. Convex rods 9 are fixed at the other ends of the outer walls on both sides of the connecting pipe 8. The convex rods 9 are rotatably connected to the inner wall of the strip-shaped groove. Through the arranged strip-shaped groove and convex rod 9, the support assembly 6 is rotatably connected to the fixing frame 2. A rotating ring is sleeved and fixed at one end of the lead screw 10 close to the connecting block 11. The lead screw 10 is rotated through the arranged rotating ring. Installation holes are opened at the four corners of the outer wall of one side of the I-shaped plate 13. The I-shaped plate 13 and the support plate 14 are connected and fixed by bolts. The support plate 14 is connected and fixed to the I-shaped plate 13 by bolts.

[0029] Working principle:

[0030] During operation, place the base 1 at the bottom of the foundation pit, and then rotate the screw rod 4 by turning the wheel handle, so that the screw rod 4 rotates on the top of the base 1. Due to the rotational cooperation between the support assembly 6 and the movable ring 5, and the rotational cooperation between the support assembly 6 and the fixed frame 2, as the screw rod 4 rotates, the support assembly 6 maintains a horizontal position. Then rotate the lead screw 10 to adjust the position distance between the I-shaped plate 13 and the fixed frame 2. Finally, connect and fix the support plate 14 to the I-shaped plate 13 to complete the overall installation.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A deep foundation pit support structure, comprising a base (1), characterized in that: A fixing frame (2) distributed in an annular shape and at equal intervals is fixed on the top of the base (1), and a fixing plate (3) is fixed on the top of each fixing frame (2), the fixing plate (3) is rotatably connected to a screw rod (4), and a movable ring (5) is screwed to the rod wall of the screw rod (4), and the outer wall of the movable ring (5) is connected to a supporting assembly (6) distributed at equal intervals, and the supporting assembly (6) comprises a connecting pipe (8), a screw rod (10) screwed to one end of the connecting pipe (8), a connecting block (11) rotatably connected to one end of the screw rod (10), a rotating block (12) rotatably connected to one end of the connecting block (11), an I-shaped plate (13) fixed to one end of the rotating block (12), and a supporting plate (14) fixed to the outer wall of one side of the I-shaped plate (13).

2. A deep foundation pit support structure according to claim 1, characterized in that: The bottom end of the screw rod (4) is rotatably connected to the base (1), and a rotating wheel handle is fixed to the top end of the screw rod (4).

3. A deep foundation pit support structure according to claim 1, characterized in that: The annular outer wall of the movable ring (5) is fixed with U-shaped blocks (7) distributed at equal distances, and the inner walls on both sides of the U-shaped blocks (7) are rotatably connected to one end of the connecting pipe (8).

4. A deep foundation pit support structure according to claim 1, characterized in that: A strip groove is formed on the inner wall of one side of the fixing frame (2), and convex rods (9) are fixed to the other ends of the outer walls on both sides of the connecting pipe (8), and the convex rods (9) are rotatably connected to the inner wall of the strip groove.

5. A deep foundation pit support structure according to claim 1, characterized in that: A rotating ring is sleeved and fixed on one end of the rod wall of the screw rod (10) close to the connecting block (11).

6. A deep foundation pit support structure according to claim 1, characterized in that: Four corners of the outer wall of one side of the I-shaped plate (13) are provided with mounting holes, and the I-shaped plate (13) and the supporting plate (14) are connected and fixed by bolts.

Images