A pipe and well chamber connection

Abstract

This utility model relates to the field of underground engineering, specifically to a connection structure between a pipe and a manhole, including a lower manhole, a splicing section at the top of the lower manhole, an upper manhole at the end of the splicing section away from the lower manhole, and a manhole cover connected to the end of the upper manhole away from the splicing section. The lower manhole includes a through hole for connecting a drainage pipe, the diameter of the through hole being larger than the diameter of the drainage pipe. An annular groove is provided on the inner wall of the through hole for grouting to fill the gap between the inner wall of the through hole and the drainage pipe. A water-stop ring is embedded in the annular groove, and the water-stop ring is coaxially arranged with the drainage pipe. The lower manhole, the splicing section, and the upper manhole are all prefabricated structural components. A first protrusion is provided on the top of the lower manhole, a first groove is provided at the end of the splicing section facing the lower manhole, and the first protrusion engages with the first groove. A second protrusion is provided at the end of the splicing section away from the first groove, and a second groove is provided at the end of the upper manhole facing the splicing section, and the second protrusion engages with the second groove.

Description

Technical Field

[0001] This utility model relates to the field of groundwater engineering, and in particular to a connection structure between a pipe and a well chamber. Background Technology

[0002] As a key structural element in municipal engineering and drainage systems, manholes primarily function to inspect, connect, and guide underground pipelines. Currently, most manholes are constructed using on-site casting, which involves erecting formwork and reinforcing steel bars on-site, followed by concrete pouring. While this method is highly adaptable, it also has several drawbacks.

[0003] When existing manholes are set up with reserved pipe interfaces in a confined space, the construction progress is slow and inefficient due to space constraints. This leads to unstable connection between the reserved pipe interfaces and the drainage pipes, resulting in poor sealing. Furthermore, due to limited on-site construction conditions, there is often a lack of effective rigid connection between the manhole structure and the reserved pipe interfaces, which can easily cause cracks, misalignment, and water leakage at the connection points. Utility Model Content

[0004] The purpose of this utility model is to overcome the problems existing in the prior art, such as the need for on-site template construction, steel reinforcement and casting, which are difficult to carry out in a narrow space. Due to the limited on-site construction conditions, there is often a lack of effective rigid connection between the well structure and the reserved interface of the pipeline, which can easily cause cracks, misalignment and water seepage at the connection. This utility model provides a connection structure between the pipeline and the well.

[0005] In a first aspect, the present invention provides a connection structure between a pipe and a manhole, including a lower manhole, a splicing section at the top of the lower manhole, an upper manhole at the end of the splicing section away from the lower manhole, and a manhole cover connected to the end of the upper manhole away from the splicing section;

[0006] The lower well chamber includes a through hole for connecting a drainage pipe. The diameter of the through hole is larger than the diameter of the drainage pipe. The inner wall of the through hole is provided with an annular groove for grouting to fill the gap between the inner wall of the through hole and the drainage pipe. A water-stop ring is embedded in the annular groove and is coaxially arranged with the drainage pipe.

[0007] The lower well chamber, the splicing section, and the upper well chamber are all prefabricated structural components;

[0008] The top of the lower well chamber is provided with a first protrusion, and the end of the splicing section facing the lower well chamber is provided with a first groove. The first protrusion is engaged with the first groove. The end of the splicing section away from the first groove is provided with a second protrusion. The end of the upper well chamber facing the splicing section is provided with a second groove. The second protrusion is engaged with the second groove.

[0009] This utility model provides a connection structure between a pipe and a manhole. By prefabricating structural components in the lower manhole, compared to traditional construction methods that require construction in confined underground spaces, this utility model improves construction efficiency by prefabricating the lower manhole, splicing section, and upper manhole, and then installing them by splicing. Furthermore, it allows for the pre-setting of pipe pre-drilled holes (through holes), enhancing the connection stability between the drainage pipe and the lower manhole. The splicing section extends the lower manhole, enabling it to adapt to underground wells of varying depths and improving the manhole structure's ductility. In actual construction, the height of the entire manhole can be adjusted according to the specific burial requirements. The lower manhole has a through hole for connecting to a drainage channel, and the inner wall of this through hole has an annular groove. The annular groove creates a reinforced and sealed space between the drainage pipe and the manhole, improving the overall sealing performance of the lower manhole and the drainage pipe connection, and reducing the probability of liquid leakage from the connection point. Furthermore, a water-stop ring is embedded within the annular groove, and the water-stop ring is coaxially positioned with the drainage pipe. This ensures that after the subsequent drainage pipe connects to the lower manhole through the through-hole, the water-stop ring enhances the sealing between the drainage pipe and the through-hole, preventing groundwater or other liquid leakage and improving the overall operational reliability of the manhole. This invention also utilizes a snap-fit ​​structure between the first boss and the first groove, and the second boss and the second groove, to achieve rapid assembly of the lower manhole and the splicing section, and the upper manhole and the splicing section. This ensures a secure connection while facilitating disassembly and maintenance, enhancing the modularity and ease of assembly of the manhole.

[0010] Preferably, the lower well chamber includes a leveling foundation and a lower well chamber cavity, the bottom of which is connected to the top of the leveling foundation, and the top of which is connected to the splicing section.

[0011] By setting up a leveling foundation, the lower well chamber can be stably supported at the bottom during installation. The connection between the leveling foundation and the bottom of the lower well chamber improves the stability and anti-settlement capacity of the overall structure. The top of the lower well chamber is connected to the upper well chamber through splicing sections, which realizes the flexible combination of well chambers of different depths, enhances the adaptability and assembly efficiency of the well chamber system, facilitates modularization and standardization of construction, improves construction quality and reduces costs.

[0012] Preferably, a sealing element is provided between the lower well chamber and the splicing section, and a sealing element is also provided between the splicing section and the upper well chamber.

[0013] Sealing components are installed between the lower well chamber and the splicing section, and between the splicing section and the upper well chamber. This effectively improves the sealing performance between the connecting sections, prevents rainwater and groundwater from seeping into the well chamber, and enhances the seepage prevention capability of the entire well chamber system. At the same time, it avoids sewage leakage and environmental pollution, and enhances the durability and safety of the structure.

[0014] Preferably, a first pouring joint is provided between the lower well chamber and the splicing section, and a second pouring joint is provided between the splicing section and the upper well chamber.

[0015] Preferably, both the splicing section and the upper well chamber are equipped with ladders, which are arranged along the axial direction of the splicing section.

[0016] Preferably, the top of the upper well chamber is provided with a manhole cover mounting cylinder, the manhole cover mounting cylinder is eccentrically positioned with respect to the upper well chamber, and the manhole cover mounting cylinder is located in the area above the ladder.

[0017] Preferably, the lower well chamber, the splicing section, and the upper well chamber are all concrete structures.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This utility model provides a connection structure between a pipe and a manhole. By prefabricating structural components in the lower manhole, compared to traditional construction methods that require construction in confined underground spaces, this utility model improves construction efficiency by prefabricating the lower manhole, splicing section, and upper manhole, and then installing them by splicing. It also allows for the pre-setting of pipe pre-drilled holes (through holes), improving the connection stability between the drainage pipe and the lower manhole. The splicing section extends the lower manhole, allowing it to adapt to underground wells of different depths, improving the manhole structure's ductility. In actual construction, the height of the entire manhole can be adjusted according to the actual burial location. The lower manhole has a through hole for connecting to a drainage channel; the inner wall of this through hole has an annular groove. The annular groove creates a reinforced and sealed space between the drainage pipe and the manhole, improving the overall sealing performance of the lower manhole and the drainage pipe connection, and reducing the probability of liquid leakage from the connection point. Furthermore, a water-stop ring is embedded within the annular groove, and the water-stop ring is coaxially positioned with the drainage pipe. This ensures that after the subsequent drainage pipe connects to the lower manhole through the through-hole, the water-stop ring further enhances the sealing between the drainage pipe and the through-hole, preventing groundwater or other liquid leakage and improving the overall operational reliability of the manhole. This invention also utilizes a snap-fit ​​structure between the first boss and the first groove, and the second boss and the second groove, to achieve rapid assembly of the lower manhole and the splicing section, and the upper manhole and the splicing section. This ensures a secure connection while facilitating disassembly and maintenance, enhancing the modularity and ease of assembly of the manhole. Attached Figure Description

[0020] Figure 1 This is a sectional view of the connection between the lower well chamber, the splicing section, and the upper well chamber in this utility model;

[0021] Figure 2 In this utility model Figure 1 Enlarged view of part A;

[0022] Figure 3 In this utility model Figure 1 Enlarged view of part B;

[0023] Figure 4 This is a schematic diagram showing the connection between the lower well chamber and the drainage pipe in this utility model;

[0024] Figure 5 In this utility model Figure 4 Enlarged view of part C;

[0025] Figure 6 This is a schematic diagram of the structure of the lower well chamber of this utility model;

[0026] Figure 7 In this utility model Figure 6 Enlarged view of point D;

[0027] Figure 8 This is a cross-sectional view of the lower well chamber of this utility model;

[0028] Figure 9 This is a cross-sectional view of the splicing segment in this utility model;

[0029] Figure 10 This is a cross-sectional view of the upper well chamber in this utility model.

[0030] Markings in the diagram: 1-Lower well chamber; 11-Through hole; 111-Annular groove; 12-Leveling foundation; 13-Lower well chamber cavity; 131-First boss; 2-Splicing section; 21-First groove; 22-Second boss; 3-Upper well chamber; 31-Second groove; 32-Well cover mounting cylinder; 4-Well cover; 5-Drainage pipe; 6-Water-stop ring; 7-Sealing element; 8-First pouring joint; 9-Second pouring joint; 10-Ladder. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0032] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±9% relative to the corresponding direction, more preferably within ±7%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0034] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0035] Furthermore, in the description of the embodiments of this utility model, "several", "more than", and "a number of" represent at least two. It can be any number, such as two, three, four, five, six, seven, eight, etc., and can even exceed eight.

[0036] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0037] Example 1

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The diagram illustrates a pipe-manhole connection structure, comprising a lower manhole 1 buried underground. The lower manhole 1 is a prefabricated structure, with a splicing section 2 attached to its top. An upper manhole 3 is located at the end of the splicing section 2 furthest from the lower manhole 1. A manhole cover 4 is located on the top of the upper manhole 3. The lower manhole 1 includes a through-hole 11 for connecting a drainage pipe 5. The diameter of the through-hole 11 is larger than the diameter of the drainage channel, facilitating the initial connection of the drainage pipe 5 to the through-hole 11 during installation. A circumferential annular groove 111 is provided on the inner wall of the through-hole 11. This annular groove 111 is used during the grouting stage of the connection process between the drainage pipe 5 and the through-hole 11, thickening the joint layer and improving the structural stability of the connection. The annular groove 111 is also fitted with a water-stop ring 6, and the water-stop ring 6 is coaxially arranged with the drainage pipe 5. This allows the drainage pipe 5 to be connected to the lower well chamber 1 through the through hole 11. The water-stop ring 6 improves the sealing between the drainage pipe and the through hole 11, preventing groundwater or other liquids from leaking and improving the operational reliability of the entire well chamber. The top of the lower well chamber 1 is provided with a first protrusion 131. The end of the splicing section 2 facing the lower well chamber 1 is provided with a first groove 21. The first protrusion 131 is engaged with the first groove 21. The end of the splicing section 2 away from the first groove 21 is provided with a second protrusion 22. The end of the upper well chamber 3 facing the splicing section 2 is provided with a second groove 31. The second protrusion 22 is engaged with the second groove 31.

[0039] In one or more embodiments, the lower well chamber 1 further includes a lower well chamber cavity 13. The bottom of the lower well chamber cavity 13 is connected to the top of the leveling foundation 12, and the top of the lower well chamber cavity 13 is connected to the splicing section 2. By setting the leveling foundation 12, the lower well chamber 1 can achieve stable bottom support during installation. The connection between the leveling foundation 12 and the bottom of the lower well chamber cavity 13 improves the overall structural stability and anti-settlement capability. The top of the lower well chamber cavity 13 is connected to the upper well chamber 3 via the splicing section 2, realizing flexible combination of well chambers of different depths, enhancing the adaptability and assembly efficiency of the well chamber system, facilitating modular and standardized construction, improving construction quality, and reducing costs. Figure 6 , Figure 7 and Figure 8 As shown.

[0040] In one or more embodiments, a sealing element 7 is provided between the lower well chamber 1 and the splicing section 2, and a sealing element 7 is also provided between the splicing section 2 and the upper well chamber 3. The provision of sealing elements 7 between the lower well chamber 1 and the splicing section 2, and between the splicing section 2 and the upper well chamber 3, effectively improves the sealing performance between the connecting sections, prevents rainwater and groundwater from seeping into the well chamber, and enhances the seepage prevention capability of the entire well chamber system; at the same time, it avoids sewage leakage causing environmental pollution, and enhances the durability and safety of the structure. Figure 1 , Figure 8 and Figure 9 As shown.

[0041] In one or more embodiments, a first pouring joint 8 is provided between the lower well chamber 1 and the splicing section 2, and a second pouring joint 9 is provided between the splicing section 2 and the upper well chamber 3;

[0042] In one or more embodiments, both the splicing section 2 and the upper well chamber 3 are equipped with ladders 10, and the ladders 23 are arranged along the axial direction of the splicing section 2, such as... Figure 4 As shown.

[0043] In one or more embodiments, a manhole cover mounting cylinder 32 is provided at the top of the upper manhole chamber 3. The manhole cover mounting cylinder 32 is eccentrically positioned relative to the upper manhole chamber 3, and is located in the area above the ladder 10. Figure 10 As shown.

[0044] In one or more embodiments, the lower well chamber 1, the splicing section 2, and the upper well chamber 3 are all concrete structures.

[0045] In one or more embodiments, the lower well chamber 1 is cylindrical or cubic in shape.

[0046] The splicing segment 2 in this application can be stacked in several layers according to actual construction needs.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connection structure between a pipe and a manhole, characterized in that, It includes a lower well chamber (1), the top of which is provided with a splicing section (2), and an upper well chamber (3) is provided at the end of the splicing section (2) away from the lower well chamber (1). A well cover (4) is connected to the end of the upper well chamber (3) away from the splicing section (2). The lower well chamber (1) includes a through hole (11) for connecting a drainage pipe (5). The diameter of the through hole (11) is larger than the diameter of the drainage pipe (5). The inner wall of the through hole (11) is provided with an annular groove (111). The annular groove (111) is used for grouting to fill the gap between the inner wall of the through hole (11) and the drainage pipe (5). A water-stop ring (6) is embedded in the annular groove (111). The water-stop ring (6) is coaxially arranged with the drainage pipe (5). The lower well chamber (1), the splicing section (2), and the upper well chamber (3) are all prefabricated structural components; The lower well chamber (1) has a first protrusion (131) on its top. The splicing section (2) has a first groove (21) at one end facing the lower well chamber (1). The first protrusion (131) is engaged with the first groove (21). The splicing section (2) has a second protrusion (22) at one end away from the first groove (21). The upper well chamber (3) has a second groove (31) at one end facing the splicing section (2). The second protrusion (22) is engaged with the second groove (31).

2. The connection structure between a pipe and a well chamber according to claim 1, characterized in that, The lower well chamber (1) includes a leveling foundation (12) and a lower well chamber cavity (13). The bottom of the lower well chamber cavity (13) is connected to the top of the leveling foundation (12), and the first boss (131) is located on the top of the lower well chamber cavity (13).

3. The connection structure between a pipe and a well chamber according to claim 2, characterized in that, A sealing element (7) is provided between the lower well chamber (1) and the splicing section (2), and a sealing element (7) is also provided between the splicing section (2) and the upper well chamber (3).

4. The connection structure between a pipe and a well chamber according to claim 3, characterized in that, A first pouring joint (8) is provided between the lower well chamber (1) and the splicing section (2), and a second pouring joint (9) is provided between the splicing section (2) and the upper well chamber (3).

5. The connection structure between a pipe and a well chamber according to claim 1, characterized in that, Both the splicing section (2) and the upper well chamber (3) are equipped with ladders (10), which are arranged along the axial direction of the splicing section (2).

6. The connection structure between a pipe and a well chamber according to claim 5, characterized in that, The top of the upper well chamber (3) is provided with a well cover mounting cylinder (32), which is eccentrically positioned with respect to the upper well chamber (3) and located in the area above the ladder (10).

7. A connection structure between a pipe and a manhole according to any one of claims 1-6, characterized in that, The lower well chamber (1), the splicing section (2), and the upper well chamber (3) are all concrete structures.

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