Socket type buried pipe
By using a socket-type buried pipe design and employing a rubber ring and a multi-layer sealing structure, the problems of complex and costly connections in existing buried pipes are solved, achieving the effects of simplified installation, reduced costs, and improved sealing performance.
Patent Information
- Application Number
- CN202520729479.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-17
AI Technical Summary
Existing buried pipe connection methods are complex and costly, especially difficult to install in confined spaces, and inconvenient to maintain, making them unsuitable for materials such as metal pipes.
It adopts a socket-type buried pipe design, which utilizes a rubber ring and a multi-layer sealing structure to achieve connection through the cooperation of the socket end and the spigot end, simplifying the installation process, and utilizes the corrosion resistance of PVC material to extend service life.
It achieves a connection with excellent sealing performance, is suitable for various environments, simplifies installation and maintenance, reduces costs, and improves the flexibility and durability of piping systems.
Smart Images

Figure CN223895396U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a buried pipe technical field especially, it relates to a socket type buried pipe. BACKGROUND
[0002] Buried pipe refers to the pipeline laid below the ground for conveying various fluids (such as water, oil, gas, etc.) or as a protective channel for cables.
[0003] Buried pipe usually adopts hot melt connection, and hot melt connection is mainly suitable for non-metal pipeline, such as PP-R pipe, PB pipe, PE-RT pipe and other new pipe materials and pipe fittings connection, which is inconvenient for later maintenance. For metal pipeline or pipeline of other materials, hot melt connection may not be applicable. And hot melt connection needs to use special hot melt equipment, and the purchase and maintenance cost of these equipment is relatively high, such as the patent document CN222387637U discloses a PVC pipeline hot melt butt joint device.
[0004] Buried pipe can also adopt flange connection, and flange connection needs to use flange and bolt and other connecting pieces, and the cost of these components is relatively high. Installing flange connection also needs a certain space and time, which increases the installation cost, and is not suitable for some limited space buried environment, such as the area where the pipeline is densely arranged in the underground comprehensive pipe gallery.
[0005] In the above scheme, the connection between the pipelines is relatively complex, the cost is high, the maintenance is inconvenient, and in some environments, it cannot be installed in batches, therefore, it is necessary to provide a socket type buried pipe to solve the problems of the prior art. UTILITY MODEL CONTENTS
[0006] The utility model aims at solving the shortcomings in the prior art, and provides a socket type buried pipe.
[0007] The utility model adopts the technical scheme that:
[0008] A socket type buried pipe, which comprises a pipe body, the top of the pipe body is a receiving end, the middle part of the pipe body is an intermediate section, and the bottom of the pipe body is a socket end, the receiving end is internally provided with a rubber ring, the receiving end is sequentially provided with a pipe mouth section one, a convex section, a pipe mouth section two and an inclined diameter section from outside to inside, the rubber ring is installed in the convex section, the outer ring of the rubber ring is attached to the inner side of the convex section, and the inner ring of the rubber ring is in abutment with the outer wall of the socket end of another pipe body.
[0009] The utility model is further provided with an upper slope on the upper end of the inner ring of the rubber ring, lower slopes are arranged at the lower end of the inner ring of the rubber ring, and a cutout is arranged in the middle part of the inner ring of the rubber ring.
[0010] The utility model further sets up, the notch and upper slope between be equipped with plane one, plane one and another pipe body mouth end outer wall abutment forms first sealing layer, the notch and lower slope between be equipped with plane two, plane one and another pipe body mouth end outer wall abutment forms second sealing layer.
[0011] The utility model further sets up, the convex section both ends link up with pipe mouth section one and pipe mouth section two respectively, the oblique diameter section both ends link up with pipe mouth section two and intermediate section respectively, and the oblique diameter section inner diameter is reduced along pipe mouth section two to intermediate section direction in proportion.
[0012] The utility model further sets up, and the pipe mouth section two inner diameter is greater than intermediate section outer diameter.
[0013] The utility model further sets up, and intermediate section outer diameter is greater than rubber ring inner ring diameter.
[0014] The utility model further sets up, and the mouth end port is equipped with chamfer.
[0015] The utility model further sets up, and the pipe body material is PVC material.
[0016] Summarized above, the utility model has following beneficial effect:
[0017] 1. The utility model can set up multiple convex sections with the receiving end, and multiple sealing layers are formed with rubber ring, and the sealing performance is strengthened, the normal operation of pipeline system is guaranteed, and the loss caused by leakage is reduced.
[0018] 2. The utility model adopts socket connection, does not need special tool, only needs to insert the mouth end of a pipeline into the receiving end of another pipeline, can complete connection, is applicable to various environments, especially in narrow space.
[0019] 3. The utility model can be repeatedly used after being assembled and disassembled multiple times, is convenient to maintain, can save cost, and increases its flexibility. DRAWINGS
[0020] Figure 1 It is the front view of the utility model.
[0021] Figure 2 It is the sectional view of the utility model.
[0022] Figure 3 It is the utility model Figure 1 The enlarged view of A.
[0023] Figure 4 It is the utility model Figure 2 The enlarged view of B.
[0024] In the diagram, 1. Pipe body, 2. Middle section, 3. Rubber ring, 31. Upper slope, 32. Lower slope, 33. Cut, 34. Plane 1, 35. Plane 2, 4. Pipe opening section 1, 5. Protruding section, 6. Pipe opening section 2, 7. Inclined diameter section, 8. Chamfer. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0026] Example 1:
[0027] In this embodiment, as Figures 1-4 As shown, the present invention proposes a socket-type buried pipe, including a pipe body 1, which is integrally formed. The top of the pipe body is the receiving end, the middle part of the pipe body is the intermediate section 2, and the bottom of the pipe body is the insertion end. A rubber ring 3 is provided inside the receiving end. The receiving end consists of a pipe opening section 4, a raised section 5, a pipe opening section 6, and a slanted section 7 from the outside to the inside. The rubber ring is installed inside the raised section. The outer ring of the rubber ring fits against the inner side of the raised section, and the inner ring of the rubber ring abuts against the outer wall of the insertion end of the other pipe body.
[0028] In this embodiment, the upper end of the inner ring of the rubber ring is provided with an upper slope 31, the lower end of the inner ring of the rubber ring is provided with a lower slope 32, and the middle part of the inner ring of the rubber ring is provided with a cut 33.
[0029] In this example, the rubber ring has an upper slope and a lower slope, with the angle between the upper slope and the lower slope being less than 45 degrees. The upper slope can reduce installation resistance and facilitate positioning when the two pipes are connected; the lower slope can reduce resistance when the two pipes are separated.
[0030] In this embodiment, a plane 34 is provided between the cut and the upper slope, and the plane abuts against the outer wall of the other tube insertion end to form a first sealing layer. A plane 35 is provided between the cut and the lower slope, and the plane abuts against the outer wall of the other tube insertion end to form a second sealing layer.
[0031] In this embodiment, the two ends of the protruding section are connected to the first pipe opening section and the second pipe opening section, respectively, and the two ends of the inclined diameter section are connected to the second pipe opening section and the middle section, respectively. The inner diameter of the inclined diameter section decreases proportionally along the direction from the second pipe opening section to the middle section.
[0032] In this embodiment, the inner diameter of the second pipe section is larger than the outer diameter of the middle section, so that the middle section can be inserted into the second pipe section of another pipe body and the insertion stops at the inclined section.
[0033] In this embodiment, the outer diameter of the middle section is further configured to be larger than the inner diameter of the rubber ring. Since the rubber ring has a certain elasticity, the outer diameter of the middle section is slightly larger than the inner diameter of the rubber ring. This allows the outer wall of the middle section to squeeze the rubber ring after the middle section passes through the other tube insertion end, making the rubber ring and the outer wall of the middle section fit tightly together and improving the sealing performance.
[0034] In this embodiment, the socket end is further provided with a chamfer 8, the chamfer angle being less than 15 degrees. The chamfer can prevent wear on the socket end and facilitate the insertion of the socket end into another pipe receiving end, reducing installation resistance.
[0035] In this embodiment, the pipe body is further configured to be made of PVC material. PVC material has stable chemical properties and strong resistance to many chemical substances. Whether in acidic or alkaline soil environments or when in contact with common media such as domestic sewage and rainwater, it is not easy to undergo chemical reactions and be corroded. It can be buried underground for a long time to transport the corresponding fluid, which greatly extends the service life of the pipeline and reduces the cost and construction trouble caused by frequent pipeline replacement.
[0036] Example 2:
[0037] In this embodiment, as Figures 1-4 As shown, based on Example 1, two protruding sections can be set at the receiving end, and a rubber ring can be set inside the protruding section to enhance the sealing performance when the two pipes are inserted. Since there is no need to install flanges or use hot-melt process between the pipes, the construction is simple, the maintenance is convenient, and the labor, material and equipment costs are low.
[0038] In the description of this utility model, it should be noted that when terms such as "upper," "lower," "inner," "outer," "left," and "right" appear to indicate orientation or positional relationships, they should be understood as being based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this utility model is in use, or the orientation or positional relationships commonly understood by those skilled in the art. These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, when terms such as "first" and "second" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that unless otherwise explicitly specified and limited, terms such as "installation," "setting," and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
Claims
1. A socket-type buried pipe, characterized in that, The tube includes a pipe body, with the top of the pipe body serving as the receiving end, the middle section of the pipe body serving as the intermediate section, and the bottom of the pipe body serving as the insertion end. The receiving end is equipped with a rubber ring inside. From the outside to the inside, the receiving end consists of pipe section one, a raised section, pipe section two, and a beveled section. The rubber ring is installed inside the raised section, with the outer ring of the rubber ring fitting against the inner side of the raised section, and the inner ring of the rubber ring abutting against the outer wall of the insertion end of another pipe body.
2. A socket-type buried pipe according to claim 1, characterized in that, The inner ring of the rubber ring has an upper slope at the top and a lower slope at the bottom. There is a cut in the middle of the inner ring of the rubber ring.
3. A socket-type buried pipe according to claim 2, characterized in that, A first plane is provided between the cut and the upper slope. The first plane abuts against the outer wall of the other pipe insertion end to form a first sealing layer. A second plane is provided between the cut and the lower slope. The first plane abuts against the outer wall of the other pipe insertion end to form a second sealing layer.
4. A socket-type buried pipe according to claim 1, characterized in that, The two ends of the protruding section are connected to the first and second pipe openings, respectively. The two ends of the inclined section are connected to the second pipe opening and the middle section, respectively. The inner diameter of the inclined section decreases proportionally from the second pipe opening to the middle section.
5. A socket-type buried pipe according to claim 1, characterized in that, The inner diameter of the second pipe section is larger than the outer diameter of the middle section.
6. A socket-type buried pipe according to claim 1, characterized in that, The outer diameter of the middle section is larger than the inner diameter of the rubber ring.
7. A socket-type buried pipe according to claim 1, characterized in that, The connector end has a chamfer.
8. A socket-type buried pipe according to claim 1, characterized in that, The pipe body is made of PVC.
Citation Information
Patent Citations
PVC pipeline hot melting butt joint device
CN222387637U