Foundation pit supporting structure

Abstract

The utility model belongs to the technical field of constructional engineering, discloses a foundation pit supporting structure, and aims to solve the problems that an existing foundation pit supporting structure is supported and fixed through a second supporting rod, the second supporting rod is prone to stress bending in the use process when the second supporting rod is in an inclined state, and the movement range of the second supporting rod is limited, so that the supporting effect is poor. According to the technical scheme, a plurality of installation steel plates, a plurality of installation base plates and a base are included, inserting plates are fixedly installed on the top faces of the installation steel plates respectively, inserting grooves are formed in the bottom faces of the installation steel plates respectively, and the inserting plates can be inserted into the inserting grooves respectively. According to the utility model, the structure is simpler, only the movable rod needs to be pulled to a corresponding position during use, the stress of the movable rod is more uniform, the use is more stable, the adjustment range is larger, and the adjustment mode is more flexible.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building engineering, concretely relates to a foundation pit support structure. BACKGROUND

[0002] In the construction of building engineering, the foundation pit enclosure is the guarantee of the safety of underground structure construction and the surrounding environment of the foundation pit, and the supporting, reinforcing and protecting measures used for the side wall and surrounding environment of the foundation pit, such as the Chinese patent with the publication number CN222227318U, which discloses a municipal construction road deep foundation pit support structure, the prior art supports and fixes through the second support rod, the second support rod is in an inclined state, and in the use process, the second support rod is prone to stress bending, and the movable range of the second support rod is limited, and the adjustment range is low. CONTENT OF UTILITY MODEL

[0003] In order to solve the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a foundation pit support structure, which is simpler in structure, and only needs to pull the corresponding position of the movable rod during use, the stress of the movable rod is more uniform, the use is more stable, the adjustment range is larger, and the adjustment mode is more flexible.

[0004] The technical scheme adopted by the foundation pit support structure to solve the technical problems is as follows:

[0005] A foundation pit support structure is provided, which comprises a plurality of installation steel plates, a plurality of installation base plates and a base, the top surface of each installation steel plate is fixedly provided with an insertion plate, the bottom surface of each installation steel plate is provided with an insertion slot, the insertion plate can be inserted into the insertion slot, a threaded structure is arranged on the installation steel plate to fix the insertion plate, the bottom surface of each installation base plate is fixedly provided with a connecting screw hole, the top surface of the base is fixedly provided with a short screw rod at the center, the short screw rod can be inserted into the connecting screw hole and threadedly matched, the top surface of each installation base plate is rotatably provided with a cylinder, the two sides of the cylinder are fixedly provided with guide pipes, the guide pipes are respectively provided with pistons which are in sliding fit with the guide pipes, one end of each movable rod is fixedly connected to the opposite side of the piston, the other side of the movable rod is fixedly connected to one side of a push plate, a communication hole is formed in the cylinder, the two sides of the outer periphery of the cylinder are fixedly provided with one-way guide air inlet valves, the foundation pit support structure further comprises a plurality of telescopic rod structures, the bottom part of each telescopic rod structure is fixedly provided with a sealing plug, the top surface of the cylinder is provided with a communication port, the sealing plug can be inserted into the communication hole, the top part of each telescopic rod structure is provided with a threaded structure and threadedly matched with the connecting screw hole, and the top surface of the topmost cylinder is provided with a sealing plug.

[0006] Further, the sealing plug is a threaded plug, and the communication hole is provided with an internal thread which is threadedly matched with the sealing plug.

[0007] Further, the telescopic rod structure comprises a mounting pipe, a nut, a movable screw rod and a limiting structure, the lower end of the mounting pipe is fixedly connected with the top surface of the corresponding sealing plug respectively, the upper end of the mounting pipe is rotationally connected with the nut, the lower end of the movable screw rod is located in the mounting pipe, the limiting structure is arranged between the inner wall of the mounting pipe and the outer periphery of the movable screw rod, the movable screw rod passes through the nut and is threadedly matched, and the upper end of the movable screw rod is threadedly matched with the connecting screw hole.

[0008] Further, the limiting structure comprises a limiting groove and a limiting block, the limiting groove is arranged on the outer periphery of the movable screw rod, and the limiting block is fixedly arranged on the inner wall of the mounting pipe and located in the limiting groove and capable of sliding along the limiting groove.

[0009] Further, the cylinder body is fixedly provided with a vertical partition plate.

[0010] Further, the other side of the push plate is fixedly provided with a gasket.

[0011] Further, the outer periphery of the mounting base plate is fixedly provided with anti-skid lines.

[0012] Compared with the prior art, the telescopic rod structure has the advantages that:

[0013] 1. The base is placed at the bottom of the foundation pit, the mounting steel plate is installed on both sides of the foundation pit through the plug socket structure, the mounting base plate is installed on the base, the sealing plug of the connecting telescopic rod structure is inserted into the communication hole at the top of the cylinder body, two movable rods can be moved, the movable rod can drive the piston to move, and then air can enter the cylinder body along the one-way air inlet valve, the communication hole is blocked, and then the two movable rods cannot be retracted into the guide pipe, thereby supporting the mounting steel plate, the user can install the mounting steel plate upward according to the depth of the foundation pit, the topmost cylinder body is sealed by the sealing plug, compared with the prior art, the structure of the telescopic rod structure is simpler, when used, the movable rod can be pulled to the corresponding position, the stress of the movable rod is more uniform, the use is more stable, the adjustment range is larger, and the adjustment mode is more flexible.

[0014] 2. The threaded structure facilitates the installation of the sealing plug and can prevent the sealing plug from falling off, and the threaded structure has good sealing effect and can prevent air leakage.

[0015] 3. The telescopic rod structure can connect the top of the cylinder body and the mounting base plate above the cylinder body through the sealing plug and the movable screw rod, the nut is rotated, the nut can drive the movable screw rod to move up and down, and thus the length adjustment can be realized, and the telescopic rod structure is simple in structure and convenient to use.

[0016] 4, The utility model discloses a kind of foundation pit support structures of example, limiting groove and limiting block can play the function of limiting movable screw rod, so that movable screw rod can only move up and down relative to mounting pipe, the structure of this limiting structure is simple, convenient to use.

[0017] 5, The utility model discloses a kind of foundation pit support structures of example, baffle can isolate two guide pipes, in turn can avoid the air in two guide pipes intercommunication, avoid horizontal movement when using the utility model.

[0018] 6, The utility model discloses a kind of foundation pit support structures of example, gasket can increase the friction between push plate and mounting steel plate, in turn can make the utility model more stable.

[0019] 7, The utility model discloses a kind of foundation pit support structures of example, anti-skid pattern can increase the friction between mounting chassis and user hand, can avoid skidding, more conveniently install the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings:

[0021] Figure 1 For the structural diagram of the utility model.

[0022] In the figure: 1 mounting steel plate;2 mounting chassis;3 base;4 barrel;5 guide pipe;6 piston;7 movable rod;8 push plate;9 sealing plug;10 mounting pipe;11 nut;12 movable screw rod;13 baffle. DETAILED DESCRIPTION

[0023] The present application will be further described in detail below with reference to the accompanying drawings and examples. It can be understood that the specific examples described herein are only used to explain the related utility model, and not limited to the utility model. In addition, it needs to be explained that, for the convenience of description, only the part related to the utility model is shown in the drawings.

[0024] It needs to be explained that, in the case of no conflict, the examples in the present application and the features in the examples can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and examples.

[0025] As Figure 1As shown in the figure, a foundation pit supporting structure, including several installation steel plates 1 and several installation chassis 2 and a base 3, the top surface of the installation steel plate 1 is respectively fixedly installed with a plug, the bottom surface of the installation steel plate 1 is respectively provided with a plug slot, the plug is respectively inserted into the plug slot, the installation steel plate 1 is respectively provided with a threaded structure for fixing the plug, the bottom surface of the installation chassis 2 is respectively fixedly installed with a connecting screw hole, the top surface of the base 3 is fixedly installed with a short screw rod in the center, the short screw rod can be inserted into the connecting screw hole and threadedly matched, the top surface of the installation chassis 2 is respectively rotatably installed with a cylinder 4, the two sides of the cylinder 4 are respectively fixedly installed with a guide pipe 5, the guide pipe 5 is respectively provided with a piston 6 in sliding fit therewith, the opposite side of the piston 6 is respectively fixedly connected with one end of an activity lever 7, the other side of the activity lever 7 is respectively fixedly connected with one side of a push plate 8, the cylinder 4 is provided with a communication hole in communication with the cylinder 4, the two sides of the outer periphery of the cylinder 4 are respectively fixedly installed with a one-way guide air inlet valve, further comprising several telescopic rod structures, the bottom part of the telescopic structure is respectively fixedly installed with a sealing plug 9, the top surface of the cylinder 4 is respectively provided with a communication port, the sealing plug 9 can be inserted into the communication hole, the top part of the telescopic rod structure is provided with a threaded structure and threadedly matched with the connecting screw hole, the top surface of the topmost cylinder 4 is provided with a sealing plug 9. The base 3 is placed at the bottom of the foundation pit, the installation steel plate 1 is installed on both sides of the foundation pit through the plug socket structure, the installation chassis 2 is installed on the base 3, the sealing plug 9 of the connecting telescopic rod structure is inserted into the communication hole at the top of the cylinder 4, the two activity levers 7 can be moved, the movement of the activity lever 7 can drive the piston 6 to move, thereby enabling air to enter the cylinder 4 along the one-way air inlet valve, because the communication hole is blocked, thereby enabling the two activity levers 7 to be unable to be retracted into the guide pipe 5, thereby playing a supporting function for the installation steel plate 1, the user can install the installation steel plate 1 upwards in sequence according to the depth of the foundation pit, the topmost cylinder 4 can be sealed through the sealing plug 9, compared with the prior art, the structure of the utility model is simpler, when in use, the activity lever 7 only needs to be pulled at the corresponding position, the stress of the activity lever 7 is more uniform, the use is more stable, the adjustment range is larger, and the adjustment mode is more flexible.

[0026] As Figure 1 Further preferably, the sealing plug 9 is a threaded plug, and the communication hole is provided with an internal thread threadedly matched with the sealing plug 9. The threaded structure facilitates the installation of the sealing plug 9 and can prevent the sealing plug 9 from falling off. In addition, the threaded structure has good sealing effect and can prevent air leakage.

[0027] As Figure 1As shown in the further preferred, the telescopic rod structure includes mounting pipe 10, nut 11, movable screw rod 12 and limiting structure, the lower end of mounting pipe 10 is fixedly connected with the top surface of corresponding sealing plug 9 respectively, the upper end of mounting pipe 10 is rotatably connected with nut 11, the lower end of movable screw rod 12 is located in mounting pipe 10, limiting structure is arranged between the inner wall of mounting pipe 10 and the outer periphery of movable screw rod 12, limiting structure makes movable screw rod 12 unable to rotate relatively, does not affect movable screw rod 12 can move up and down relative to mounting pipe 10, movable screw rod 12 passes through nut 11 and is screwed, the upper end of movable screw rod 12 is screwed with connecting screw hole. Through sealing plug 9 and movable screw rod 12, the top of cylinder body 4 can be connected with the adjacent mounting base plate 2 above it, nut 11 is rotated, nut 11 can drive movable screw rod 12 to move up and down, so that the length adjustment can be realized, the telescopic rod structure is simple in structure and convenient to use.

[0028] As shown in the further preferred, Figure 1 The limiting structure includes limiting groove and limiting block, limiting groove is opened in the outer periphery of movable screw rod 12, limiting block is fixedly installed on the inner wall of mounting pipe 10, limiting block is located in limiting groove and can slide along it. Limiting groove and limiting block can limit movable screw rod 12, so that movable screw rod 12 can only move up and down relative to mounting pipe 10, the limiting structure is simple in structure and convenient to use.

[0029] As shown in the further preferred, Figure 1 The cylinder body 1 is fixedly installed with vertical partition plate 13. Partition plate 13 can isolate two guide pipes 5, thereby avoiding air communication in two guide pipes 5 and avoiding horizontal movement during use of the utility model.

[0030] As shown in the further preferred, Figure 1 The other side of push plate 8 is fixedly installed with gasket respectively. Gasket can increase the friction between push plate 8 and mounting steel plate 1, thereby making the utility model more stable.

[0031] As shown in the further preferred, Figure 1 The outer periphery of mounting base plate 2 is fixedly installed with anti-skid lines. Anti-skid lines can increase the friction between mounting base plate 2 and the hands of users, can avoid slipping and make the utility model more convenient to install.

[0032] The above description is merely the preferred embodiments of the present application and the explanation of the technical principles applied. It should be understood by those skilled in the art that the scope of the utility model involved in the present application is not limited to the technical solutions formed by the specific combinations of the technical features described above, and should also cover other technical solutions formed by any combinations of the technical features described above or their equivalent features without departing from the concept of the utility model. For example, the technical solutions formed by the mutual replacement of the above features and the technical features disclosed in the present application (but not limited to) having similar functions.

[0033] In addition to the technical features described in the specification, the remaining technical features are known to those skilled in the art. In order to highlight the innovative features of the present application, the remaining technical features will not be described here.

Claims

1. A foundation pit support structure comprising a plurality of installation steel plates (1) and a plurality of installation base plates (2) and a base (3), the top surface of each of the installation steel plates (1) is fixedly provided with an insertion plate, the bottom surface of each of the installation steel plates (1) is provided with an insertion slot, the insertion plate is capable of being inserted into the insertion slot, and a threaded structure is arranged on each of the installation steel plates (1) to fix the insertion plate, characterized in that, The bottom surface of the mounting base (2) is respectively fixedly provided with a connecting screw hole, the top surface of the base (3) is fixedly provided with a short screw rod at the center, the short screw rod can be inserted into the connecting screw hole and threadedly matched, the top surface of the mounting base (2) is respectively rotatably provided with a cylinder (4), the two sides of the cylinder (4) are respectively fixedly provided with a guide pipe (5), the guide pipe (5) is respectively provided with a piston (6) in sliding fit, the opposite side of the piston (6) is respectively fixedly connected with one end of an activity rod (7), the other side of the activity rod (7) is respectively fixedly connected with one side of a push plate (8), the cylinder (4) is provided with a communication hole in communication with the cylinder (4), the two sides of the outer periphery of the cylinder (4) are respectively fixedly provided with a one-way guide air inlet valve, further comprising a plurality of telescopic rod structures, the bottom part of the telescopic structure is respectively fixedly provided with a sealing plug (9), the top surface of the cylinder (4) is respectively provided with a communication port, the sealing plug (9) can be inserted into the communication hole, the top part of the telescopic rod structure is provided with a threaded structure and threadedly matched with the connecting screw hole, and the top surface of the topmost cylinder (4) is provided with a sealing plug (9).

2. A retaining structure according to claim 1, wherein The sealing plug (9) is a threaded plug, and the communication hole is provided with an internal thread in threaded fit with the sealing plug (9).

3. A retaining structure according to claim 1, wherein The telescopic rod structure comprises a mounting pipe (10), a nut (11), an activity screw rod (12) and a limiting structure, the lower end of the mounting pipe (10) is fixedly connected with the top surface of the corresponding sealing plug (9), the upper end of the mounting pipe (10) is rotatably connected with the nut (11), the lower end of the activity screw rod (12) is located in the mounting pipe (10), the limiting structure is arranged between the inner wall of the mounting pipe (10) and the outer periphery of the activity screw rod (12), the activity screw rod (12) passes through the nut (11) and is threadedly matched, and the upper end of the activity screw rod (12) is threadedly matched with the connecting screw hole.

4. A retaining structure according to claim 3, wherein The limiting structure comprises a limiting groove and a limiting block, the limiting groove is arranged on the outer periphery of the activity screw rod (12), and the limiting block is fixedly arranged on the inner wall of the mounting pipe (10) and can slide in the limiting groove.

5. A retaining structure according to any one of claims 1 to 4, wherein The cylinder (4) is fixedly provided with a vertical partition plate (13) inside.

6. A retaining structure according to any one of claims 1 to 4, wherein The other side of the push plate (8) is respectively fixedly provided with a gasket.

7. A retaining structure according to any one of claims 1 to 4, wherein The outer periphery of the mounting base (2) is fixedly provided with an anti-skid pattern.

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