Deep foundation pit supporting structure

Abstract

The utility model discloses a deep foundation pit supporting structure, which relates to the technical field of foundation pit supporting and comprises a first supporting plate, a second supporting plate, a third supporting plate and a fourth supporting plate which are sequentially distributed on four inner walls of a foundation pit. A first reinforcing rod assembly is arranged between the first supporting plate and the third supporting plate, a second reinforcing rod assembly is arranged between the second supporting plate and the fourth supporting plate, and the first reinforcing rod assembly is composed of a connecting rod, a threaded rod, a first connecting block, a first connecting frame, a second connecting block and a second connecting frame. The reinforcing rod assembly is arranged between the two supporting plates, the two ends of the reinforcing rod abut against the two supporting plates respectively, the firmness of the supporting plates after installation is improved through the counter-acting force of the two walls of the foundation pit, the length of the reinforcing rod assembly can be freely adjusted, and the reinforcing rod assembly can be conveniently disassembled and assembled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a deep foundation pit support structure. BACKGROUND

[0002] A foundation pit refers to a space below the ground surface excavated for the construction of a building foundation and basement. The foundation pit is a temporary project, which provides a space for the masonry work of the foundation to be carried out according to the designated position specified in the design. During the excavation process, the foundation pit will inevitably cause deformation of the surrounding soil and affect the underground pipelines of surrounding buildings, which may seriously endanger the normal use and safety of the underground pipelines. In order to avoid such situations, a foundation pit support structure is set up during the design and excavation of the foundation pit to stabilize the safety of the foundation pit.

[0003] However, the existing foundation pit support structure usually uses an inclined support rod to support the side wall of the support plate and the bottom of the foundation pit. This reinforcement method can only act on the lower half of the support plate. When the foundation pit is deep, the height of the support plate will be relatively high. Using this reinforcement method, the upper half of the support plate is prone to looseness. Therefore, a deep foundation pit support structure is proposed. SUMMARY

[0004] The purpose of the utility model is to provide a deep foundation pit support structure to solve the problems raised in the background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a deep foundation pit support structure, comprising a first support plate, a second support plate, a third support plate and a fourth support plate, the first support plate, the second support plate, the third support plate and the fourth support plate are sequentially distributed on the four inner walls of the foundation pit, a first reinforcing rod assembly is arranged between the first support plate and the third support plate, a second reinforcing rod assembly is arranged between the second support plate and the fourth support plate, the first reinforcing rod assembly and the second reinforcing rod assembly have the same structure, and the first reinforcing rod assembly is composed of a connecting rod, a threaded rod, a first connecting block, a first connecting frame, a second connecting block and a second connecting frame.

[0006] As a further preferred embodiment of the technical scheme, the first reinforcing rod assembly is located above the second reinforcing rod assembly.

[0007] As a further preferred of the technical solution, the connecting rod is sleeved with a threaded sleeve on the outer surface of the threaded rod, one end of the connecting rod away from the threaded rod is provided with a first connecting block, the first connecting block is rotatably connected with the connecting rod through a rotating assembly, the outer surface of the first connecting block is sleeved with a first connecting frame, the first connecting frame is fixedly connected to the side wall of the first supporting plate, the threaded rod is fixedly connected with a second connecting block at the end away from the connecting rod, the outer surface of the second connecting block is sleeved with a second connecting frame, and the second connecting frame is fixedly connected to the side wall of the third supporting plate.

[0008] As a further preferred of the technical solution, the rotating assembly is composed of a connecting sleeve and a rotating disc, the connecting sleeve is fixedly connected to the side wall of the first connecting block, the rotating disc is fixedly connected to the end of the connecting rod away from the threaded rod, the connecting sleeve is sleeved on the outer surface of the rotating disc, and the connecting sleeve is rotatably connected with the rotating disc.

[0009] As a further preferred of the technical solution, the outer wall of the connecting sleeve is fixedly connected with a motor, the output shaft of the motor is fixedly connected with a driving gear, the outer surface of the connecting rod is fixedly sleeved with an external gear, and the external gear is meshed with the driving gear.

[0010] As a further preferred of the technical solution, the outer side and the bottom of the first supporting plate, the second supporting plate, the third supporting plate and the fourth supporting plate are fixedly connected with a plurality of reinforcing nails.

[0011] As a further preferred of the technical solution, the first connecting block and the second connecting block are both non-cylindrical structures.

[0012] The utility model provides a deep foundation pit support structure has the following beneficial effects:

[0013] The utility model discloses a reinforcing rod assembly is arranged between two supporting plates, and the two ends of the reinforcing rod abut against two supporting plates respectively, and the firmness of the supporting plate after installation is improved through the reaction force of two walls of the foundation pit, and the reinforcing rod assembly can freely adjust the length of itself, and the reinforcing rod assembly can be conveniently disassembled. ACCURACY OF DRAWINGS

[0014] Fig. 1 It is the schematic diagram of the whole structure of the utility model;

[0015] Fig. 2 It is the structural schematic diagram of the first reinforcing rod assembly in the utility model;

[0016] Fig. 3 It is the split schematic diagram of the first reinforcing rod assembly in the utility model;

[0017] Fig. 4The utility model discloses a rotating assembly's structure schematic view for the utility model;

[0018] In the drawing: 1, a support plate no. 2, support plate no. 2 3, support plate no. 3 4, support plate no. 4 5, reinforcing nail 6, first reinforcing rod subassembly 7, second reinforcing rod subassembly 8, connecting rod 9, threaded rod 10, connecting block no. 1 11, connecting frame no. 1 12, connecting block no. 2 13, connecting frame no. 2 14, connecting sleeve 15, rotating disc 16, motor 17, driving gear 18, external gear. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0020] The utility model provides technical scheme: as Figs. 1 to 4 The utility model discloses a deep foundation pit support structure, including support plate no. 1, support plate no. 2, support plate no. 3 and support plate no. 4, support plate no. 1, support plate no. 2, support plate no. 3 and support plate no. 4 are sequentially distributed on four inner walls of foundation pit, and the first reinforcing rod subassembly 6 is arranged between support plate no. 1 and support plate no. 3, and the second reinforcing rod subassembly 7 is arranged between support plate no. 2 and support plate no. 4, the structure of first reinforcing rod subassembly 6 and second reinforcing rod subassembly 7 is same, and first reinforcing rod subassembly 6 is located above second reinforcing rod subassembly 7, and first reinforcing rod subassembly 6 is composed of connecting rod 8, threaded rod 9, connecting block no. 1 10, connecting frame no. 1 11, connecting block no. 2 12 and connecting frame no. 2 13.

[0021] Among them, connecting rod 8 is threadedly sleeved on the outer surface of threaded rod 9, and the end, away from threaded rod 9, of connecting rod 8 is provided with connecting block no. 1 10, and connecting block no. 1 10 is rotatably connected with connecting rod 8 by rotating assembly, and the outer surface of connecting block no. 1 10 is slidably sleeved with connecting frame no. 1 11, and connecting frame no. 1 11 is fixedly connected on the side wall of support plate no. 1, and the end, away from connecting rod 8, of threaded rod 9 is fixedly connected with connecting block no. 2 12, and the outer surface of connecting block no. 2 12 is slidably sleeved with connecting frame no. 2 13, and connecting frame no. 2 13 is fixedly connected on the side wall of support plate no. 3.

[0022] The structure of second reinforcing rod subassembly 7 and first reinforcing rod subassembly 6 is same, and not more described here.

[0023] Among them, rotating assembly is composed of connecting sleeve 14 and rotating disc 15, connecting sleeve 14 is fixedly connected on the side wall of connecting block no. 1 10, and rotating disc 15 is fixedly connected on the end, away from threaded rod 9, of connecting rod 8, and connecting sleeve 14 is sleeved on the outer surface of rotating disc 15, and connecting sleeve 14 is rotatably connected with rotating disc 15.

[0024] Among them, a motor 16 is fixedly connected to the outer wall of the connecting sleeve 14, a drive gear 17 is fixedly connected to the end of the output shaft of the motor 16, and an external gear 18 is fixedly sleeved on the outer surface of the connecting rod 8, and the external gear 18 meshes with the drive gear 17.

[0025] When in use, the starter motor 16 drives the drive gear 17 to rotate, which in turn drives the external gear 18 to rotate, and in turn drives the connecting rod 8 to rotate.

[0026] Among them, the outer side and bottom of support plate 1, support plate 2, support plate 3 and support plate 4 are all fixedly connected with multiple reinforcing nails 5.

[0027] When in use, insert the reinforcing nails 5 into the soil on the side wall of the foundation pit to improve the stability of the support plate.

[0028] Among them, the first connecting block 10 and the second connecting block 12 are both non-cylindrical structures.

[0029] This configuration ensures that connecting block 10 and connecting block 12 will not rotate after being inserted into connecting frame 11 and connecting frame 13.

[0030] This utility model provides a deep foundation pit support structure, the specific working principle of which is as follows:

[0031] In use, after the No. 1 support plate 1, No. 2 support plate 2, No. 3 support plate 3, and No. 4 support plate 4 are fixed to the four inner walls of the foundation pit in sequence, the workers can rotate the threaded rod 9 to retract it into the connecting rod 8. When the total length of the first reinforcing rod assembly 6 is less than the distance between the No. 1 support plate 1 and the No. 3 support plate 3, the No. 2 connecting block 12 of the first reinforcing rod assembly 6 can be inserted into the No. 2 connecting frame 13 on the No. 3 support plate 3. Then, the No. 1 connecting block 10 is aligned with the No. 1 connecting frame 11 on the No. 1 support plate 1. Next, the motor 16 is started to drive the drive gear 17 to rotate, thereby driving the external gear 18 to rotate, and then driving the connecting rod 8 to rotate. Connecting block 12 is locked inside connecting frame 13, preventing threaded rod 9 from rotating. When connecting rod 8 rotates, it moves along its own axis, moving away from threaded rod 9. This allows connecting block 10 to be inserted into connecting frame 11. As connecting rod 8 continues to move, the length of first reinforcing rod assembly 6 increases, causing both ends of first reinforcing rod assembly 6 to abut between support plate 1 and support plate 3. Through the reaction force of the two walls of the pit, the stability of support plate 1 and support plate 3 is effectively improved. Second reinforcing rod assembly 7 is installed in the same way, which will not be described in detail here.

[0032] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A deep foundation pit supporting structure, comprising a first supporting plate (1), a second supporting plate (2), a third supporting plate (3) and a fourth supporting plate (4), characterized in that: The first supporting plate (1), the second supporting plate (2), the third supporting plate (3) and the fourth supporting plate (4) are sequentially arranged on the four inner walls of the foundation pit, the first reinforcing rod assembly (6) is arranged between the first supporting plate (1) and the third supporting plate (3), the second reinforcing rod assembly (7) is arranged between the second supporting plate (2) and the fourth supporting plate (4), the first reinforcing rod assembly (6) and the second reinforcing rod assembly (7) are the same in structure, and the first reinforcing rod assembly (6) is composed of a connecting rod (8), a threaded rod (9), a first connecting block (10), a first connecting frame (11), a second connecting block (12) and a second connecting frame (13).

2. A deep foundation pit support structure according to claim 1, wherein: The first reinforcing rod assembly (6) is located above the second reinforcing rod assembly (7).

3. The deep foundation pit support structure according to claim 1, characterized in that: The connecting rod (8) is threadedly sleeved on the outer surface of the threaded rod (9), one end of the connecting rod (8) away from the threaded rod (9) is provided with the first connecting block (10), the first connecting block (10) is rotatably connected with the connecting rod (8) through a rotating assembly, the outer surface of the first connecting block (10) is slidably sleeved with the first connecting frame (11), the first connecting frame (11) is fixedly connected to the side wall of the first supporting plate (1), one end of the threaded rod (9) away from the connecting rod (8) is fixedly connected with the second connecting block (12), the outer surface of the second connecting block (12) is slidably sleeved with the second connecting frame (13), and the second connecting frame (13) is fixedly connected to the side wall of the third supporting plate (3).

4. A deep foundation pit support structure according to claim 3, wherein: The rotating assembly is composed of a connecting sleeve (14) and a rotating disc (15), the connecting sleeve (14) is fixedly connected to the side wall of the first connecting block (10), the rotating disc (15) is fixedly connected to the end of the connecting rod (8) away from the threaded rod (9), the connecting sleeve (14) is sleeved on the outer surface of the rotating disc (15), and the connecting sleeve (14) is rotatably connected with the rotating disc (15).

5. A deep excavation support structure according to claim 4, wherein: The outer wall of the connecting sleeve (14) is fixedly connected with a motor (16), the output shaft of the motor (16) is fixedly connected with a driving gear (17), the outer surface of the connecting rod (8) is fixedly sleeved with an external gear (18), and the external gear (18) is meshed with the driving gear (17).

6. The deep foundation pit support structure according to claim 1, wherein: The outer sides and the bottoms of the first supporting plate (1), the second supporting plate (2), the third supporting plate (3) and the fourth supporting plate (4) are fixedly connected with a plurality of reinforcing nails (5).

7. The deep foundation pit support structure according to claim 1, characterized in that: The first connecting block (10) and the second connecting block (12) are both non-cylindrical structures.

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