Supporting structure in foundation pit

Abstract

The utility model relates to the field of supporting structures, and discloses a foundation pit inner supporting structure which comprises a fixed platform, a supporting rod is fixedly connected to the top of the fixed platform, a telescopic assembly is arranged at the top of the fixed platform, a plurality of first folding arms are arranged at the top of the fixed platform, a second folding arm is arranged at one end of each first folding arm, and a plurality of second folding arms are arranged at the other end of each second folding arm. A rotating assembly is arranged at the top of the fixing platform, a fixing plate is arranged at one end of each second folding arm, a folding block is rotationally connected to one side of each fixing plate, and the telescopic assembly comprises a plurality of hydraulic rods and a moving block. In the utility model, the fixed platform is firstly placed at the bottom of the foundation pit, then the fixed plate is jacked to the top of the wall of the foundation pit, and meanwhile, the folding arm can be unfolded along with the movement of the fixed plate, so that the effect of adapting to the foundation pits with different sizes is achieved, and the problem that different supporting equipment is needed to support the foundation pits with different sizes is avoided; therefore, the high efficiency of the supporting structure in the foundation pit is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to support structure field especially relates to a support structure in foundation pit. BACKGROUND

[0002] The foundation pit is the space below the ground surface excavated for the construction of building foundation and basement, the support structure in foundation pit can prevent the collapse of the soil body of the side wall of the foundation pit, ensure the safety of construction, effectively enhance the stability of the side wall of the foundation pit, limit the displacement and deformation of the soil body around the foundation pit, control the displacement and deformation of the soil body within a reasonable range, protect the safety of the surrounding environment and buildings, the internal support structure can provide enough space and stable working platform for the construction work in the foundation pit, on this working platform, the construction personnel can more safely and efficiently carry out construction work.

[0003] The existing support structure in foundation pit mainly acts together through horizontal support, vertical support and inclined support, the horizontal support structure transmits the earth pressure to the column or other support structure, limits the horizontal displacement of the side wall, the vertical support structure transmits the load from the horizontal support to the foundation, prevents the uplift and settlement of the bottom, the inclined support structure is connected with the horizontal and vertical support, forms a stable triangular support system, these support structures are combined with each other to form a complete system, and the stability and safety of the foundation pit are ensured through detailed design, calculation and strict construction and monitoring.

[0004] However, in the application process of the actual support structure in foundation pit, there is a problem that the difficulty in supporting different sizes of foundation pits is not effectively solved, specifically, when different sizes of foundation pits need to be supported, different types and specifications of support equipment are often used for supporting operation, which leads to frequent replacement of support equipment in the actual construction process, not only increases the difficulty and complexity of construction, but also consumes a lot of time and energy, seriously affects the efficiency of the support structure in foundation pit, and brings certain challenges and obstacles to the construction progress and quality. SUMMARY

[0005] In order to make up for the above shortcomings, the utility model provides a support structure in foundation pit, which aims at improving the problem that different support equipment needs to be used for supporting when supporting different sizes of foundation pits.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a foundation pit inner support structure, including fixed platform, the fixed platform top is fixedly connected with support rod, the fixed platform top is provided with telescopic subassembly, the fixed platform top is provided with a plurality of folding arm no.

[0007] The telescopic subassembly includes a plurality of hydraulic rods and moving blocks, one end of each hydraulic rod is fixedly connected to the top of the fixed platform, the output end of the hydraulic rod is connected to the bottom of the moving block, and the moving block is slidably connected to the outer wall of the support rod.

[0008] Further description of the above technical scheme:

[0009] The rotating assembly includes a plurality of connecting plates and a plurality of connecting blocks, one side of each connecting plate is fixedly connected to one side of the moving block, and one end of each connecting block is rotatably connected to one end of one of the folding arms.

[0010] Further description of the above technical scheme:

[0011] The folding arm one is rotatably connected with a rotating shaft in the interior, and the rotating shaft is rotatably connected with a fixed strip on the outer wall.

[0012] Further description of the above technical scheme:

[0013] Each folding arm two side is provided with a plurality of fixed grooves, and each folding arm one side is provided with a receiving groove.

[0014] Further description of the above technical scheme:

[0015] The folding arm one is rotatably connected with a rotating column in the interior, and the rotating column is rotatably connected in the interior of the folding arm two.

[0016] Further description of the above technical scheme:

[0017] One end of the folding arm one is rotatably connected in the interior of the connecting plate, and one end of the folding arm two is rotatably connected to the outer wall of the connecting block.

[0018] Further description of the above technical scheme:

[0019] The hydraulic rods are fixedly connected in parallel array to the bottom of the moving block, and the folding arms are arranged in annular array on the outer wall of the moving block.

[0020] The utility model has the advantages of:

[0021] 1、The utility model discloses a fixed platform is put into the bottom of foundation pit first, then the moving block is moved to the height that needs, after folding block on fixed plate is opened, then fixed plate top is to the top of the four around of foundation pit, and folding arm will follow the movement of fixed plate and thus stretch out, thereby reached in the equipment use process, can adapt to the effect of different size's foundation pit, avoid when supporting the foundation pit of different size, need to use different support equipment to support the problem, thereby improved the high efficiency of the support structure in foundation pit.

[0022] 2、The utility model discloses a fixed strip is pulled out from fixed groove inside first after the equipment use is completed, then is stored in the storage groove inside, then fixed plate and folding block move inwards, and folding arm no. 1 and folding arm no. 2 will be folded and stored because the existence of rotating column makes them, thereby reached after the equipment use is completed, four support parts of the equipment are stored up the effect, avoid after the equipment use is completed, the equipment covers the area and is not easy to store up the problem of too big, thereby improved the convenience of the support structure in foundation pit. DRAWINGS

[0023] Figure 1 A three-dimensional view of the support structure in the foundation pit is provided for the utility model;

[0024] Figure 2 A moving block structure diagram of the support structure in the foundation pit is provided for the utility model;

[0025] Figure 3 A folding state structure diagram of the support structure in the foundation pit is provided for the utility model.

[0026] Legend:

[0027] 1, fixed platform, 2, support rod, 3, hydraulic rod, 4, moving block, 5, connecting plate, 6, folding arm no. 1, 7, folding arm no. 2, 8, connecting block, 9, fixed plate, 10, folding block, 11, rotating shaft, 12, fixed strip, 13, fixed groove, 14, rotating column, 15, storage groove. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0029] Reference Figure 1 And Figure 2The utility model provides an embodiment: a foundation pit inner support structure, fixed platform 1 top fixedly connected with support rod 2 for supporting whole equipment is provided, fixed platform 1 top is provided with telescopic subassembly, fixed platform 1 top is provided with a plurality of folding arm no. 6 for supporting foundation pit, and each folding arm no. 6 one end is provided with folding arm no. 7, fixed platform 1 top is provided with rotating subassembly, and each folding arm no. 7 one end is provided with fixed plate 9 for connecting with the foundation pit all around, and each fixed plate 9 one side is rotatably connected with folding block 10 for limiting the moving range of fixed plate 9,

[0030] Telescopic subassembly includes a plurality of hydraulic rod 3 and moving block 4, and each hydraulic rod 3 one end fixedly connected in fixed platform 1 top for supporting moving block 4 movement, and hydraulic rod 3 output end is connected with moving block 4 bottom, and moving block 4 inside sliding connection is in support rod 2 outer wall for controlling the opening and closing degree of whole support equipment, and rotating subassembly includes a plurality of connecting plate 5 and a plurality of connecting block 8, and each connecting plate 5 one side is fixedly connected in moving block 4 one side, and each connecting block 8 one end rotatably connected in one of folding arm no. 7 one end.

[0031] Specifically, in the actual use process of equipment, when it is needed to be transferred to another foundation pit to support, the operator will first lift the folding arm no. 6 and folding arm no. 7 of the equipment, and after completing the lifting action, the operator will carry the whole equipment into another foundation pit, when the equipment is carried into the new foundation pit, ensure that the bottom of fixed platform 1 can be placed at the bottom of the foundation pit, then, the operator will first put down the folding arm no. 6 and folding arm no. 7, in the process of putting down the folding arm, connecting plate 5 and connecting block 8 will closely cooperate, so that fixed plate 9 and folding block 10 can be attached to the four walls of the foundation pit, then, the operator will start hydraulic rod 3, under the driving of hydraulic rod 3, moving block 4 will start to move, and then drive the whole equipment to gradually support the foundation pit stably, provide support for subsequent construction.

[0032] Reference Figure 2 And Figure 3The rotating shaft 11 is rotatably connected to the inside of the folding arm one 6, and the fixed strip 12 is rotatably connected to the outer wall of the rotating shaft 11, which is used to fix the folding arm one 6 and the folding arm two 7 so that they will not be folded again during the supporting process. A plurality of fixing grooves 13 are formed on one side of each folding arm two 7, which are used to fix the fixed strip 12. A receiving groove 15 is formed on one side of each folding arm one 6, which is used to receive the fixed strip 12. The rotating column 14 is rotatably connected to the inside of the folding arm one 6, which is used to provide mechanical support for the folding of the folding arm one 6 and the folding arm two 7. The rotating column 14 is rotatably connected to the inside of the folding arm two 7. One end of the folding arm one 6 is rotatably connected to the inside of the connecting plate 5. One end of the folding arm two 7 is rotatably connected to the outer wall of the connecting block 8. The hydraulic rods 3 are fixedly connected in parallel array to the bottom of the moving block 4. The folding arm one 6 is arranged in annular array on the outer wall of the moving block 4.

[0033] Specifically, when the equipment is used, the operator will first take the equipment out of the foundation pit. After taking out the equipment, the hydraulic rod 3 will be adjusted to the state of contraction, so as to return to the initial position. Then, the operator will remove the fixed strip 12 and store it in the receiving groove 15, so as to no longer affect the subsequent operation of the equipment. Next, the operator will rotate the folding arm one 6 to the lower side of the moving block 4 by using the connecting plate 5, so as to be in the appropriate position. Then, the folding arm two 7 is folded to one side of the folding arm one 6 by using the rotating column 14. After that, the operator will fold the fixed plate 9 to one side of the folding arm two 7 by using the connecting block 8, and fold the folding block 10 to the same horizontal plane as the fixed plate 9. Each supporting arm is sequentially stored according to the above steps, so as to complete the storage work of the whole equipment and return to the initial state, so as to be used next time.

[0034] Working principle: in the process of using the foundation pit support structure, first move the equipment into the fixed pit, the bottom of the fixed platform 1 is put into the bottom of the pit, then the fixed plate 9 is moved to the four walls of the pit, at the same time, folding arm one 6 and folding arm two 7 are unfolded under the action of connecting plate 5 and connecting block 8, then the fixed strip 12 is taken out from the storage slot 15 and fixed into the fixed slot 13, so that the folding arm one 6 and the folding arm two 7 are fixed, then the folding block 10 is opened and fixed at the top of the pit wall, then the hydraulic rod 3 is started to adjust the height of the moving block 4, so that the whole equipment supports the pit, after the use of the equipment is completed, first take out the equipment from the pit, then adjust the hydraulic rod 3 to the state of contraction, then release the fixed strip 12 and store it into the storage slot 15, then rotate the folding arm one 6 to the lower side of the moving block 4 by connecting plate 5, then fold the folding arm two 7 to the side of the folding arm one 6 by rotating column 14, then fold the fixed plate 9 to the side of the folding arm two 7 by connecting block 8, and fold the folding block 10 to the same horizontal plane as the fixed plate 9, each support arm is stored in this way, so that the storage of the whole equipment is completed, so as to be used next time.

[0035] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A support structure within a foundation pit, comprising a fixed platform (1), characterized in that: The fixed platform (1) is fixedly connected to the top of a support rod (2), the fixed platform (1) is provided with a telescopic component, the fixed platform (1) is provided with multiple folding arms (6) at the top, each folding arm (6) is provided with a folding arm (7) at one end, the fixed platform (1) is provided with a rotating component, each folding arm (7) is provided with a fixed plate (9) at one end, and each fixed plate (9) is rotatably connected with a folding block (10) on one side. The telescopic assembly includes multiple hydraulic rods (3) and a moving block (4). One end of each hydraulic rod (3) is fixedly connected to the top of the fixed platform (1). The output end of the hydraulic rod (3) is connected to the bottom of the moving block (4). The moving block (4) is internally slidably connected to the outer wall of the support rod (2).

2. The foundation pit support structure according to claim 1, characterized in that: The rotating assembly includes multiple connecting plates (5) and multiple connecting blocks (8). One side of each connecting plate (5) is fixedly connected to one side of the moving block (4), and one end of each connecting block (8) is rotatably connected to one end of one of the folding arms (7).

3. The foundation pit support structure according to claim 1, characterized in that: The folding arm (6) is rotatably connected to a rotating shaft (11), and a fixing strip (12) is rotatably connected to the outer wall of the rotating shaft (11).

4. The foundation pit support structure according to claim 1, characterized in that: Each of the two folding arms (7) has multiple fixing slots (13) on one side, and each of the first folding arms (6) has a storage slot (15) on one side.

5. The foundation pit support structure according to claim 1, characterized in that: The folding arm one (6) is rotatably connected to a rotating column (14), and the outer wall of the rotating column (14) is rotatably connected to the inside of the folding arm two (7).

6. The foundation pit support structure according to claim 1, characterized in that: One end of the first folding arm (6) is rotatably connected to the inside of the connecting plate (5), and one end of the second folding arm (7) is rotatably connected to the outer wall of the connecting block (8).

7. The foundation pit support structure according to claim 1, characterized in that: The hydraulic rods (3) are arranged in a parallel array and fixedly connected to the bottom of the moving block (4), and the folding arms (6) are arranged in a ring array on the outer wall of the moving block (4).

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