Detachable steel pipe support of foundation pit supporting system

Abstract

The utility model discloses a detachable steel pipe support of a foundation pit supporting system, which comprises a hanging type steel hoop, a closed steel hoop and a detachable steel pipe support, the hanging type steel hoop takes a bent steel plate as a main body, a lower semicircular steel pipe is mounted on the outer side of the bent steel plate, lower ear plates are mounted at two horizontal ends of the lower semicircular steel pipe, and the lower ear plates are connected with the closed steel hoop. The lower lug plate and the lower semicircular steel pipe are welded and fixed on the outer side of the bent steel plate; the closed steel hoop takes an upper semicircular steel pipe as a main body, upper lug plates are mounted on two sides of the upper semicircular steel pipe, and the upper lug plates are parallel in the horizontal direction; and the upper semicircular steel pipe and the lower semicircular steel pipe have the same diameter and are semicircular and are larger than the outer diameter of the detachable steel pipe support. The hanging type steel hoop and the closed steel hoop are used for changing a welding connection mode between the steel pipe support and the enclosure body into a detachable connection mode, so that workpieces can be reused, and processing difficulty caused by welding is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit engineering, in particular to a detachable steel pipe support of a foundation pit support system. Background Art

[0002] Domestic foundation pit projects, especially small foundation pit projects, use more steel pipe horizontal supports, but many steel pipe supports are usually connected to the enclosure by welding. The steel pipe supports are troublesome to install during the construction process and are also troublesome to remove after the construction is completed. In addition, in various pipeline open excavation projects in the municipal industry, there are also foundation pit support solutions that generally use steel sheet piles or steel piles plus steel pipe supports. However, pipeline construction often has a fast construction speed, and the welding of steel pipe supports is troublesome, which affects the speed of pipeline laying and cannot increase the reuse rate of steel pipe supports, resulting in a waste of project costs.

[0003] Therefore, we designed a utility model, which uses hanging steel hoops and closed steel hoops to change the connection between the steel pipe support and the enclosure from a welded connection to a detachable connection, so that the workpiece can be reused while avoiding the processing difficulties caused by welding. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art that the connection form usually adopts welding, which makes installation and removal both troublesome, the utility model provides a detachable steel pipe support for a foundation pit support system, which uses hanging steel hoops and closed steel hoops to change the connection form between the steel pipe support and the enclosure from a welded form to a detachable form, so that the workpiece can be reused, while also avoiding the processing difficulties caused by welding.

[0006] (II) Technical solution

[0007] To achieve the above object, the utility model provides the following technical solution: A detachable steel pipe support for a foundation pit support system, including a hanging steel hoop, a closed steel hoop and a detachable steel pipe support. The hanging steel hoop is mainly composed of a bent steel plate. The bent steel plate is divided into a semi-circular part, a long plate part and a short plate part. The long plate part and the short plate part are respectively fixedly connected to both ends of the semi-circular part. The three parts form a whole with the same width. The length of the long plate part is longer than that of the short plate part. A lower semi-circular steel pipe is installed on the outer side of the long plate part of the bent steel plate. There are lower ear plates in the horizontal direction at both ends of the lower semi-circular steel pipe. The lower ear plates and the lower semi-circular steel pipe are both welded and fixed on the outer side of the long plate part of the bent steel plate. The bent steel plate, the lower semi-circular steel pipe and the lower ear plates together form the hanging steel hoop. The closed steel hoop is mainly composed of an upper semi-circular steel pipe. Upper ear plates are installed on both sides of the upper semi-circular steel pipe. The upper ear plates are parallel in the horizontal direction. The upper semi-circular steel pipe and the lower semi-circular steel pipe have the same diameter size, and both are semi-circular with a diameter larger than the outer diameter of the detachable steel pipe support.

[0008] Preferably, the upper ear plates and the upper semi-circular steel pipe, and the lower ear plates and the lower semi-circular steel pipe are both fixedly connected by welding.

[0009] Preferably, the upper ear plates and the lower ear plates are of the same size and shape, and both are internally provided with holes for fixing installation bolts. The upper ear plates and the lower ear plates can be detachably connected by using the installation bolts.

[0010] Preferably, the hanging steel hoop is suspended and connected to the steel waling by using the semi-circular part of the bent steel plate. A rubber cushion plate is padded between the steel waling and the hanging steel hoop to make the hanging steel hoop have no freedom of movement on the steel waling. The steel waling is installed inside the foundation pit retaining structure.

[0011] Preferably, both ends of the detachable steel pipe support are installed in the hanging steel hoop, and the ends are padded tightly with packing plates. The detachable steel pipe support has no freedom of movement in the hanging steel hoop.

[0012] Beneficial effects:

[0013] 1. The detachable steel pipe support of a foundation pit support system, and the steel pipe support is a detachable structure. In domestic foundation pit projects, especially in small foundation pit projects, steel pipe horizontal supports are widely used. However, in many cases, the connection between the steel pipe support and the retaining structure is usually welded. During the construction process, the installation of the steel pipe support is troublesome, and the removal after the construction is also troublesome. In addition, in various open-cut projects of pipelines in the municipal industry, there are also foundation pit support schemes that commonly use sheet pile or section steel pile plus steel pipe support. Since pipeline construction often has a fast construction speed, the welding of the steel pipe support is troublesome, which not only affects the speed of pipeline laying but also cannot improve the reuse rate of the steel pipe support, resulting in waste of project cost. For this utility model, a hanging steel hoop is designed. After the foundation pit retaining structure and the steel waling are constructed, the hanging steel hoop is hung on the steel waling, and a rubber cushion plate is placed on it. Then, the detachable steel pipe support is placed on the two ends of the hanging steel hoop. One end is tightened with a filling cushion plate. Finally, the closed steel hoop and the hanging steel hoop are tightened with installation bolts. After the subsequent foundation pit excavation and backfilling are completed, the installation bolts are unscrewed, and the closed steel hoop, the detachable steel pipe support, and the hanging steel hoop are removed in sequence and reused for the construction of the next section of the foundation pit. The advantage of this detachable steel pipe support technology lies in its simplicity, speed, and reusability. During the construction process, complex welding operations are not required, which greatly simplifies the construction process and improves the construction efficiency. At the same time, since the steel pipe support is designed to be detachable, it can be easily disassembled and reused for other foundation pit projects after the construction is completed, thereby improving the utilization rate of the steel pipe support and reducing the project cost. Specifically, the application of the detachable steel pipe support technology not only reduces the project cost but also improves the project quality. First, by simplifying the construction process, the consumption of labor and materials is reduced, and the project cost is reduced. Second, since the steel pipe support is designed to be detachable and can be used multiple times, resource waste and environmental pollution are reduced. Finally, due to the simplified construction process, the possibility of human operation errors is reduced, and the project quality and safety are improved.

[0014] 2. The detachable steel pipe support of a foundation pit support system includes a bent steel plate. The bent steel plate, together with the lower semi-circular steel pipe and the ear plate welded to its outer surface, is hung on the steel waling, and a rubber cushion plate is placed in the middle. Then, the detachable steel pipe support is placed in the middle of the two ends of the hanging steel hoop, and the end is tightened with a filling cushion plate. The elastic effect of the rubber cushion plate is used to form a shock-absorbing effect, which increases the stability of the foundation pit support system. In addition, by adding rubber cushion plates and filling cushion plates, the connection between the bent steel plate and the steel waling, the detachable steel pipe support and the closed steel hoop and the hanging steel hoop is made tight. The two ends of the steel pipe support are respectively placed in the hanging steel hoop and tightened with a filling cushion plate to ensure the tight connection between the steel pipe support and the hanging steel hoop. This connection method is not only simple and fast but also can fix detachable steel pipe supports of various sizes, making the equipment have a wider application range and can connect steel waling of various sizes and fix detachable steel pipe supports of various sizes. Description of the Drawings

[0015] Other features, objectives, and advantages of the present application will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0016] Figure 1 Structural schematic diagram of the present utility model;

[0017] Figure 2 Structural schematic diagram of the hanging steel hoop of the present utility model;

[0018] Figure 3 Structural schematic diagram of the upper semi-circular steel pipe and the lower semi-circular steel pipe of the present utility model;

[0019] Figure 4 Overall structural schematic diagram of the present utility model;

[0020] Figure 5 Partial enlarged structural schematic diagram of the hanging steel hoop of the present utility model.

[0021] In the figure: 1. Hanging steel hoop; 101. Bent steel plate; 102. Lower semi-circular steel pipe; 103. Lower ear plate; 2. Closed steel hoop; 201. Upper semi-circular steel pipe; 202. Upper ear plate; 3. Installation bolt; 4. Removable steel pipe support; 5. Steel purlin; 6. Foundation pit retaining structure; 7. Rubber cushion plate. Detailed implementation manners

[0022] The present application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model and are not intended to limit the utility model. Additionally, it should be noted that for the sake of description, only the parts related to the utility model are shown in the drawings.

[0023] In the drawings of the embodiments of the present utility model: The different types of hatching lines in the figure are not marked according to the national standard, nor are the materials of the components required. They are used to distinguish the cross-sectional views of the components in the figure.

[0024] Please refer to Figures 1-5, A detachable steel pipe support for a foundation pit support system, including a hanging steel hoop 1, a closed steel hoop 2, and a detachable steel pipe support 4. The hanging steel hoop 1 is mainly composed of a bent steel plate 101. The bent steel plate 101 is divided into a semi-circular part, a long plate part, and a short plate part. The long plate part and the short plate part are respectively fixedly connected to both ends of the semi-circular part. The three parts form a whole with the same width. The length of the long plate part is longer than that of the short plate part. A lower semi-circular steel pipe 102 is installed on the outer side of the long plate part of the bent steel plate 101. There are lower ear plates 103 at both ends of the lower semi-circular steel pipe 102 in the horizontal installation direction. The lower ear plates 103 and the lower semi-circular steel pipe 102 are both welded and fixed to the outer side of the long plate part of the bent steel plate 101. The bent steel plate 101, the lower semi-circular steel pipe 102, and the lower ear plates 103 together form the hanging steel hoop 1; The closed steel hoop 2 is mainly composed of an upper semi-circular steel pipe 201. Upper ear plates 202 are installed on both sides of the upper semi-circular steel pipe 201. The upper ear plates 202 are parallel in the horizontal direction. The upper ear plates 202 and the upper semi-circular steel pipe 201, and the lower ear plates 103 and the lower semi-circular steel pipe 102 are all fixedly connected by welding. The upper ear plates 202 and the lower ear plates 103 are the same in size and shape, and there are holes for fixing and installing bolts 3 inside. The upper ear plates 202 and the lower ear plates 103 can be detachably connected by using the installation bolts 3; The upper semi-circular steel pipe 201 and the lower semi-circular steel pipe 102 have the same diameter size, and both are semi-circular with a diameter larger than the outer diameter of the detachable steel pipe support 4. Both ends of the detachable steel pipe support 4 are installed in the hanging steel hoop 1, and the ends are tightened with packing plates. The detachable steel pipe support 4 has no freedom of movement inside the hanging steel hoop 1; The hanging steel hoop 1 is suspended and connected to the steel waling 5 by the semi-circular part of the bent steel plate 101. A rubber gasket 7 is placed between the steel waling 5 and the hanging steel hoop 1, so that the hanging steel hoop 1 has no freedom of movement on the steel waling 5. The steel waling 5 is installed inside the foundation pit retaining structure 6.

[0025] As Figures 1-4 shown, for the detachable steel pipe support of the foundation pit support system, the hanging steel hoop 1 includes a bent steel plate 101, a semi-circular steel pipe, and ear plates. The semi-circular steel pipe is cut in half with a steel pipe slightly larger than the outer diameter of the steel pipe support. The ear plates are provided with holes for installing bolts 3. The ear plates are welded to both sides of the semi-circular steel pipe, and then welded to the bent steel plate 101 as a whole to form the hanging steel hoop 1; The closed steel hoop 2 includes a semi-circular steel pipe and ear plates. The semi-circular steel pipe is cut in half with a steel pipe slightly larger than the outer diameter of the steel pipe support. The ear plates are provided with holes for installing bolts 3.

[0026] As Figure 4As shown, for the detachable steel pipe support of a foundation pit support system, after the construction of the foundation pit enclosure 6 and the steel collar 5 is completed, the hanging steel hoop 1 is hung on the steel collar 5 and padded with a rubber cushion plate 7; then the detachable steel pipe support 4 is placed on the two ends of the hanging steel hoop 1, and one end is padded tightly with a filler plate; finally, the closed steel hoop 2 and the hanging steel hoop 1 are tightened with the installation bolts 3. After the subsequent foundation pit excavation construction is completed and backfilled, the installation bolts 3 are unscrewed, and the closed steel hoop 2, the detachable steel pipe support 4, and the hanging steel hoop 1 are removed in sequence and reused for the construction of the next section of the foundation pit. It is not only convenient to disassemble, but also does not require welding, and can be recycled for the next construction, improving the utilization rate of the steel pipe support, simplifying the operation difficulty while reducing the cost, and speeding up the construction speed.

[0027] As Figure 5 As shown, for the detachable steel pipe support of a foundation pit support system, it includes a bent steel plate 101. The bent steel plate 101, together with the lower semi-circular steel pipe 102 welded to its outer surface and the ear plate, is hung on the steel collar 5, padded with a rubber cushion plate 7 in the middle, and then the detachable steel pipe support 4 is placed in the middle of the two ends of the hanging steel hoop 1, and the end is padded tightly with a filler plate. It not only forms a shock-absorbing effect by using the elasticity of the rubber cushion plate 7, increasing the stability of the foundation pit support system, but also makes the bent steel plate 101 and the steel collar 5, the detachable steel pipe support 4 and the closed steel hoop 2, the hanging steel hoop 1 be tightly connected by adding the rubber cushion plate 7 and the filler plate, making the applicable range of this equipment larger, capable of connecting steel collars 5 of various sizes and fixing detachable steel pipe supports 4 of various sizes.

[0028] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with the embodiments to detail this application.

[0029] The above description is only the preferred embodiment of this application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A detachable steel pipe support for a foundation pit support system, comprising a hanging steel hoop (1), a closed steel hoop (2) and a detachable steel pipe support (4), characterized in that: The hanging steel clamp (1) is mainly composed of a bent steel plate (101), which is divided into a semicircular part, a long plate part and a short plate part. The long plate part and the short plate part are respectively fixedly connected to the two ends of the semicircular part. The three parts form a whole and have the same width. The long plate part is longer than the short plate part. A lower semicircular steel pipe (102) is installed on the outer side of the long plate part of the bent steel plate (101). Lower ear plates (103) are respectively installed at the horizontal ends of the lower semicircular steel pipe (102). The lower ear plates (103) and the lower semicircular steel pipe (102) are welded. The bent steel plate (101) is fixed to the outer side of the long plate portion, and the bent steel plate (101), the lower semicircular steel pipe (102), and the lower ear plate (103) together form the hanging steel clamp (1); the closed steel clamp (2) is mainly composed of an upper semicircular steel pipe (201), and upper ear plates (202) are installed on both sides of the upper semicircular steel pipe (201), and the upper ear plates (202) are parallel in the horizontal direction; the upper semicircular steel pipe (201) and the lower semicircular steel pipe (102) have the same diameter, and both are semicircular in shape, which is larger than the outer diameter of the detachable steel pipe support (4).

2. The detachable steel pipe support of the foundation pit support system according to claim 1 is characterized in that: The upper ear plate (202) and the upper semicircular steel pipe (201), as well as the lower ear plate (103) and the lower semicircular steel pipe (102) are fixedly connected by welding.

3. The detachable steel pipe support of the foundation pit support system according to claim 1 is characterized in that: The upper ear plate (202) and the lower ear plate (103) are of the same size and shape, and are both provided with holes for fixing mounting bolts (3). The upper ear plate (202) and the lower ear plate (103) can be detachably connected using the mounting bolts (3).

4. The detachable steel pipe support of the foundation pit support system according to claim 1 is characterized in that: The hanging steel hoop (1) is connected to the steel purlin (5) by hanging using the semicircular part of the bent steel plate (101); a rubber pad (7) is provided between the steel purlin (5) and the hanging steel hoop (1) so that the hanging steel hoop (1) has no freedom of movement on the steel purlin (5); and the steel purlin (5) is installed inside the foundation pit retaining body (6).

5. The detachable steel pipe support of the foundation pit support system according to claim 1 is characterized in that: Both ends of the detachable steel pipe support (4) are installed in the hanging steel clamp (1), and the ends are padded with pads. The detachable steel pipe support (4) has no freedom of movement in the hanging steel clamp (1).

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