Assembly type concrete well and pipeline connecting system

Abstract

The utility model provides an assembly type concrete well and pipeline connecting system which comprises a concrete well, a pipeline and a sealing assembly, a preassembling hole is formed in the side wall of the concrete well, the preassembling hole is at least partially arranged outside the pipeline in a surrounding mode, and the sealing assembly is located between the inner wall of the preassembling hole and the outer wall of the pipeline; the sealing assembly comprises a limiting ring and a sealing ring, and the limiting ring is coaxially arranged outside the pipeline in a sleeving mode and fixedly connected with the pipeline; the sealing ring is coaxially arranged outside the pipeline in a sleeving mode and abuts against the pipeline. The outer diameter of the sealing ring is larger than or equal to that of the limiting ring, and the sealing ring is located on the upstream side of the limiting ring. According to the utility model, the installation accuracy of the pipeline can be ensured, and plugging materials do not need to be filled later, so that the construction operation is simplified, and the construction efficiency and the construction quality are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline construction technology, and in particular to a connection system between a prefabricated concrete well and a pipeline. Background Technology

[0002] Concrete manholes are a type of inspection manhole, manufactured from materials such as concrete, mortar, bricks, and gravel according to relevant regulations. They are mainly used for various inspection operations of urban underground infrastructure. Based on the manufacturing process, concrete manholes are divided into cast-in-place concrete manholes and precast concrete manholes. Compared to the former, precast concrete manholes involve factory prefabrication, transportation and hoisting, and assembly with pipelines (such as drainage pipes), resulting in higher construction efficiency.

[0003] After the precast concrete well is transported and hoisted to the installation position, it needs to be connected and fixed to the pipeline. The inside of the precast concrete well and the inside of the pipeline must be connected to ensure the functionality of the pipeline itself and the ability for workers to enter the precast concrete well to inspect the inside of the pipeline.

[0004] The traditional approach is to pre-drill installation holes in the sidewalls of precast concrete wells (where sleeves can be pre-embedded). During installation, one end of the pipe is inserted into the hole. To facilitate pipe installation, the hole diameter should be larger than the outer diameter of the pipe. However, during normal use, it is necessary to ensure that the contents of the pipe do not leak to the outside of the pipe, thereby affecting the safety of the building or road above the pipe. Therefore, after inserting the pipe into the hole, it is also necessary to seal the gap between the outer wall of the pipe and the hole wall using materials such as hemp fiber or asbestos cement.

[0005] The above process has the following shortcomings: large concrete pipes are heavy, and because the bore diameter is larger than the outer diameter of the pipe, it is impossible to accurately guarantee the design axis position and elevation of the pipe when the heavy pipe is inserted into the reserved installation hole. On the one hand, it will affect the installation accuracy of the pipe itself, which may affect its normal use or reduce its structural life. On the other hand, the gap between the outer wall of the pipe and the wall of the hole is annular, but the size of the annular gap is different in different parts, which affects the filling efficiency and sealing quality of the sealing material. Even worse, if the local gap is too small, the sealing material will not be able to fill in. Utility Model Content

[0006] The purpose of this invention is to provide a prefabricated concrete well and pipeline connection system to address the shortcomings in the aforementioned background technology.

[0007] The technical solution of this utility model is: a prefabricated concrete well and pipe connection system, which includes: a concrete well, a pipe and a sealing component, wherein the side wall of the concrete well is provided with a pre-installed hole, the pre-installed hole is at least partially arranged around the outside of the pipe, and the sealing component is located between the inner wall of the pre-installed hole and the outer wall of the pipe.

[0008] Furthermore, the sealing assembly includes a limiting ring and a sealing ring. The limiting ring is coaxially sleeved outside the pipe and fixedly connected to the pipe. The sealing ring is coaxially sleeved outside the pipe and abuts against the pipe. The outer diameter of the sealing ring is greater than or equal to the outer diameter of the limiting ring, and the sealing ring is located on the water-facing side of the limiting ring.

[0009] Furthermore, the limiting ring is connected to the pipe via a locking member, which includes at least a high-strength bolt extending radially along the pipe.

[0010] Furthermore, the sealing ring includes a first ring body and a second ring body. The first ring body is coaxially sleeved outside the limiting ring and abuts against the limiting ring; the second ring body is coaxially sleeved outside the pipe and abuts against the pipe.

[0011] Furthermore, the first ring and the second ring have the same outer diameter, and the second ring is located on the water-facing side of the limiting ring.

[0012] Furthermore, the first ring and / or the second ring are water-swellable rubber rings.

[0013] Furthermore, at least two sets of sealing components are provided between the pipe and the concrete well, and the distance between the opposite ends of the two sets of sealing components is adapted to the sidewall thickness of the concrete well.

[0014] Furthermore, the pipeline is provided in two sets, which are respectively connected to the opposite sidewalls of the concrete well.

[0015] The beneficial effects of this utility model are as follows: During construction, the length of the pipe inserted into the pre-installed hole is determined according to the sidewall thickness of the concrete well, thereby determining the installation position of the two sets of sealing components on the pipe; the two sets of sealing components are installed on the pipe, and the pipe is pushed from the back water side of the limiting ring to the front water side (i.e., from the outside of the concrete well to the inside), so that the connection between the pipe and the sealing components is inserted into the pre-installed hole. Since the size of the limiting ring and the sealing ring is constant and they fit tightly with the pre-installed hole and the pipe, it can be ensured that the pipe and the pre-installed hole are coaxial, ensuring installation accuracy. Furthermore, no post-filling sealing material is required, simplifying the construction operation and effectively improving construction efficiency, pipe installation accuracy, and gap sealing quality. Attached Figure Description

[0016] Figure 1 This is a front sectional view of an embodiment of the present invention before assembly;

[0017] Figure 2 This is a front sectional view of an embodiment of the present invention after assembly;

[0018] Figure 3 This is an appendix to the embodiments of this utility model. Figure 2Enlarged view of the structure at point A in the middle.

[0019] In the picture:

[0020] 100. Concrete well; 110. Pre-installed hole;

[0021] 200. Pipeline;

[0022] 300, Sealing assembly; 310, Limiting ring; 320, Sealing ring; 321, First ring body; 322, Second ring body; 330, Locking element. Detailed Implementation

[0023] The technical solutions of the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] In the description of the embodiments of this utility model, it should be understood that the terms "top," "bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that unless otherwise expressly specified and limited, the terms "set" and "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model through specific circumstances.

[0025] Reference Appendix Figure 1-3 This utility model embodiment provides a connection system for a prefabricated concrete well 100 and a pipe 200, which includes a concrete well 100, a pipe 200, and a sealing component 300. The concrete well 100 is a prefabricated concrete well 100, which is prefabricated in the factory and then hoisted to the installation location for assembly with the pipe 200, sealing component 300, etc. The side wall of the concrete well 100 is provided with a pre-installation hole 110, which is at least partially surrounding the outside of the pipe 200, that is, one end of the pipe 200 extends into the pre-installation hole. In 110, the length of the pipe 200 extending into the pre-installation hole 110 can be the same as or less than the length of the pre-installation hole 110 itself. In this embodiment, it is preferred that the length of the pipe 200 extending into the pre-installation hole 110 is the same as the length of the pre-installation hole 110 itself, that is, the end face of the pipe 200 is flush with the inner wall of the concrete well 100; the sealing component 300 is located between the inner wall of the pre-installation hole 110 and the outer wall of the pipe 200, and is used to seal the gap between the pipe 200 and the pre-installation hole 110.

[0026] In this embodiment, the sealing component 300 is used not only to seal the gap between the pipe 200 and the pre-installed hole 110, but also to ensure the accuracy of the axial installation of the pipe 200. For this purpose, the specific structure of the sealing component 300 includes: a limiting ring 310 and a sealing ring 320. The limiting ring 310 is coaxially sleeved outside the pipe 200 and fixedly connected to the pipe 200. The sealing ring 320 is coaxially sleeved outside the pipe 200 and abuts against the pipe 200. The outer diameter of the sealing ring 320 is greater than or equal to the outer diameter of the limiting ring 310, and the sealing ring 320 is located on the water-facing side of the limiting ring 310.

[0027] Taking drainage pipe 200 as an example, the interior of concrete well 100 is connected to the interior of pipe 200, so water will exist in concrete well 100. Therefore, the water-facing side of limiting ring 310 should be the side closest to the inner cavity of concrete well 100. Limiting ring 310 and sealing ring 320 are coaxially sleeved outside pipe 200, and the width of the circumference of limiting ring 310 and sealing ring 320 is constant. Limiting ring 310 and sealing ring 320 are used to ensure that the width of the annular gap between the outer wall of pipe 200 and the inner wall of pre-installed hole 110 is uniform, that is, to ensure that pipe 200 and pre-installed hole 110 are coaxial; while sealing ring 320 is used to prevent water in concrete well 100 from overflowing outside pipe 200.

[0028] In this embodiment, the limiting ring 310 adopts a rigid structure, such as a steel ring. During construction, it is fitted onto the designated position on the outer wall of the pipe 200, and the limiting ring 310 is connected and fastened to the pipe 200 with the locking member 330 to fix the position of the limiting ring 310 and prevent it from sliding along the axial direction of the pipe 200 due to friction or other factors during installation. The locking member 330 can be a high-strength bolt, which extends radially along the pipe 200 and is installed from the outer wall of the limiting ring 310 toward the pipe 200.

[0029] In this embodiment, the sealing ring 320 includes a first ring body 321 and a second ring body 322. The first ring body 321 and the second ring body 322 are integrally formed. The first ring body 321 is coaxially sleeved outside the limiting ring 310 and abuts against the limiting ring 310; the second ring body 322 is coaxially sleeved outside the pipe 200 and abuts against the pipe 200. That is, the cross-section of the sealing ring 320 is L-shaped, and the vertical end of the L-shape is located between its horizontal end and the pipe 200. (Refer to the attached figure.) Figure 3 The horizontal end of the L-shape is the first ring body 321, and the vertical end of the L-shape is the second ring body 322. After the limiting ring 310 and the sealing ring 320 are both installed on the pipe 200, during the process of inserting the pipe 200 into the pre-installation hole 110, although the outer wall of the sealing ring 320 is subjected to frictional force from the pre-installation hole 110, the limiting ring 310 is fixed. The limiting ring 310 is exactly on the moving trend path of the sealing ring 320. The fixedly set limiting ring 310 can prevent the sealing ring 320 from being displaced due to frictional force.

[0030] More specifically, the first ring 321 and the second ring 322 have the same outer diameter, with the second ring 322 located on the water-facing side of the limiting ring 310. The sealing ring 320 uses a water-swellable rubber ring to ensure effective pore sealing.

[0031] In this embodiment, a drainage pipe 200 is used as an example. Two sets of pipes 200 are provided. One set of pipes 200 is installed on the opposite side wall of one set of concrete well 100. In order to ensure the connection and support stability and improve the sealing effect, at least two sets of sealing components 300 are provided between each set of pipes 200 and concrete well 100. The distance between the opposite ends of the two sets of sealing components 300 is adapted to the side wall thickness of concrete well 100.

[0032] During construction, the length of the pipe 200 inserted into the pre-installation hole 110 is determined according to the sidewall thickness of the concrete well 100, thereby determining the installation position of the two sets of sealing components 300 on the pipe 200. The two sets of sealing components 300 are installed on the pipe 200, and the pipe 200 is pushed from the back water side of the limiting ring 310 to the front water side (i.e., from the outside of the concrete well 100 to the inside), so that the connection between the pipe 200 and the sealing components 300 is inserted into the pre-installation hole 110. Since the dimensions of the limiting ring 310 and the sealing ring 320 are constant and they fit tightly with the pre-installation hole 110 and the pipe 200, it can be ensured that the pipe 200 and the pre-installation hole 110 are coaxial, ensuring installation accuracy. Furthermore, no post-filling sealing material is required, simplifying the construction operation and effectively improving construction efficiency, pipe 200 installation accuracy, and gap sealing quality.

[0033] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A prefabricated concrete well and pipe connection system, characterized in that, The application relates to a concrete well, a pipeline and a sealing assembly. The sealing assembly comprises a limiting ring and a sealing ring, the limiting ring is coaxially sleeved outside the pipeline and fixedly connected with the pipeline; the sealing ring is coaxially sleeved outside the pipeline and abuts against the pipeline; the outer diameter of the sealing ring is greater than or equal to the outer diameter of the limiting ring, and the sealing ring is located on the water-approaching side of the limiting ring.

2. The fabricated concrete well and pipe connection system according to claim 1, wherein, The limiting ring and the pipeline are connected through a locking piece, and the locking piece at least comprises a high-strength bolt extending along the radial direction of the pipeline.

3. The fabricated concrete well and pipe connection system according to claim 2, wherein, The sealing ring comprises a first ring body and a second ring body, the first ring body is coaxially sleeved outside the limiting ring and abuts against the limiting ring; and the second ring body is coaxially sleeved outside the pipeline and abuts against the pipeline.

4. The fabricated concrete well and pipe connection system according to claim 2 or 3, characterized in that, The outer diameters of the first ring body and the second ring body are the same, and the second ring body is located on the water-approaching side of the limiting ring.

5. The fabricated concrete well and pipe connection system according to claim 4, wherein, The first ring body and / or the second ring body is a water-swelling rubber ring.

6. The fabricated concrete well and pipe connection system according to claim 5, wherein, At least two groups of the sealing assembly are arranged between the pipeline and the concrete well, and the distance between the two groups of the sealing assembly is matched with the thickness of the side wall of the concrete well.

7. The system for connecting a precast concrete well to a pipe according to any one of claims 1-3, 5-6, wherein, The pipeline is provided with two groups, and the two groups are respectively connected with the opposite side walls of the concrete well.

8. The fabricated concrete well and pipe connection system according to claim 7, wherein, ​

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