Pipe connection structure and pipe connection unit

Abstract

The application relates to the field of pipe materials, in particular to a pipe material connecting structure and a pipe line connecting unit. The pipe material connecting structure comprises a socket section, a sealing ring and a socket section for receiving the socket section; the socket section is provided with an anti-falling recess and a sealing installation groove which are concave on the outside and convex on the inside, the anti-falling recess is located on the side close to the port of the socket section, the socket section is provided with an annular transition groove which is convex on the inside and concave on the outside between the anti-falling recess and the sealing installation groove, the annular transition groove and the sealing installation groove form a corrugated structure which is concave-convex arranged; the socket section is provided with a clamping part which is clamped with the anti-falling recess and a sealing connecting part which is used for connecting the sealing ring; the sealing ring is installed in the sealing installation groove of the socket section, and the inner ring of the sealing ring is abutted on the sealing connecting part of the socket section after the socket section and the socket section are connected. The pipe material connecting structure and the pipe line connecting unit can improve the sealing performance of the pipe line.

Description

Technical Field

[0001] This application relates to the field of pipes, and in particular to a pipe connection structure and a pipe connection unit. Background Technology

[0002] The descriptions in this section provide background information related to this disclosure only and do not constitute prior art. Pipes are essential materials in construction projects, commonly including water supply pipes and drainage pipes. For ease of transportation, each pipe section is not made too long and needs to be connected on-site. In related technologies, during geological settlement, the pipes are subjected to axial pull-out forces, resulting in a decrease in sealing performance. In severe cases, groundwater may seep back into the pipes, causing network failure. Summary of the Invention

[0003] In view of this, this application provides a pipe connection structure and a pipe connection unit that can improve the sealing performance of the pipe.

[0004] To achieve the above objectives, this application employs the following technical solution:

[0005] A pipe connection structure, characterized in that it includes a spigot section, a sealing ring, and a socket section for receiving the spigot section; the socket section is provided with an anti-detachment groove with an inner concave and outer convex shape and a sealing installation groove, the anti-detachment groove being located on the end side near the socket section, and the socket section having an annular transition groove with an outer concave and inner convex shape between the anti-detachment groove and the sealing installation groove, the annular transition groove and the sealing installation groove forming a corrugated structure with concave and convex shapes; the spigot section is provided with a snap-fit ​​part that engages with the anti-detachment groove and a sealing connection part for connecting the sealing ring; the sealing ring is installed in the sealing installation groove of the socket section, and after the spigot section and the socket section are connected, the inner ring of the sealing ring abuts against the sealing connection part of the spigot section.

[0006] The aforementioned pipe connection structure of this application includes an annular transition groove between the anti-detachment groove and the sealing installation groove in the socket section. This annular transition groove is concave on the inside and convex on the outside, increasing the circumferential strength of the socket section and seamlessly connecting the anti-detachment groove and the sealing installation groove. Furthermore, the annular transition groove and the sealing installation groove form a corrugated structure. During pipe drawing, the annular transition groove tends to be flattened, thus providing axial buffering and preventing pipe breakage. Additionally, the annular transition groove radially contracts towards the axis, tightening and further compressing the sealing ring, thereby improving sealing performance during drawing.

[0007] In some embodiments, a fastening ring is installed within the annular transition groove. This fastening ring acts as a clamp, securing the annular transition groove. Its function is to prevent excessive movement of the annular transition groove, which could cause the sealing ring to shift and thus reduce its sealing performance.

[0008] In some embodiments, the sealing connection is a solid pipe section. The solid structure of the sealing connection is primarily to prevent denting when the sealing ring is compressed. If the sealing connection were hollow, denting would easily occur, leading to a decrease in the pipeline's sealing performance.

[0009] In some embodiments, the socket segment has at least one annular groove between the snap-fit ​​portion and the sealing connection portion. The annular groove increases the circumferential strength of the socket segment.

[0010] In some embodiments, the inner ring of the sealing ring is provided with at least one inwardly protruding sealing contact ring. The sealing contact ring is angled towards the port of the socket section. When the socket section is mated with the receptacle section, the socket section can push open the sealing contact ring. After installation, the sealing contact ring is tightly attached to the outer wall of the sealing connection. The sealing contact ring on the inner ring of the sealing ring is angled to facilitate insertion of the socket section. Furthermore, the sealing contact ring has a restoring force after being pushed open, which can continuously compress the sealing connection of the socket section, thereby improving the sealing performance.

[0011] In some embodiments, the snap-fit ​​part includes an annular base integrally connected to the spigot section and connecting teeth integrally connected to the annular base. The annular base is a hollow structure, and the connecting teeth are connected to the annular base via a connecting ring. The connecting ring includes several concave and convex rings sleeved on the outer periphery of the connecting teeth. The concave and convex rings are alternately arranged and nested one another, forming a retractable corrugated structure. When the spigot section and the socket section are joined, the connecting teeth are compressed radially by the pressure of the socket section through the connecting ring, allowing the connecting teeth to enter the anti-detachment groove. After entering the anti-detachment groove, the connecting teeth rebound radially and snap into the anti-detachment groove. The connecting ring of the snap-fit ​​part can drive the connecting teeth to change radially. When under pressure, the connecting teeth can be radially compressed, and when no force is applied, they can automatically return to their radial position. Thus, when the pipes are joined, the connecting teeth can enter the anti-detachment groove to form a snap-fit ​​structure.

[0012] This application also provides a pipe connection unit, characterized in that: it includes a pipe body, on which a spigot section and / or a socket section as described in any one of claims 1-6 are provided.

[0013] As can be seen from the above technical solution, this application has at least the following advantages and positive effects:

[0014] This application provides an annular transition groove between the anti-detachment groove and the sealing installation groove in the socket section. This annular transition groove is concave on the inside and convex on the outside, increasing the circumferential strength of the socket section and seamlessly connecting the anti-detachment groove and the sealing installation groove. Furthermore, the annular transition groove and the sealing installation groove form a corrugated structure. During pipe drawing, the annular transition groove tends to be flattened, thus acting as an axial buffer to prevent pipe breakage. Additionally, the annular transition groove radially contracts towards the axis, tightening and further compressing the sealing ring, thereby improving sealing performance during drawing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the first embodiment of this application;

[0016] Figure 2 This is a schematic diagram of the snap-fit ​​portion in the first embodiment of this application;

[0017] Figure 3 This is a top view of the snap-fit ​​portion in the first embodiment of this application;

[0018] Figure 4 This is a schematic diagram of the structure of the second embodiment of this application;

[0019] Labeling Explanation: 1. Socket section; 11. Snap-fit ​​part; 111. Annular base; 112. Connecting tooth; 113. Concave ring; 114. Convex ring; 12. Sealing connection part; 13. Annular groove; 2. Socket section; 21. Anti-detachment groove; 22. Sealing installation groove; 23. Annular transition groove; 3. Sealing ring; 31. Sealing contact ring; 4. Fastening ring; 5. Pipe body. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the application will be described in further detail below with reference to the accompanying drawings. The terminology used in the embodiments section of this application is only for explaining specific embodiments and is not intended to limit the application.

[0021] See Figures 1 to 3This application provides a pipe connection structure, including a spigot section 1, a sealing ring 3, and a socket section 2 for receiving the spigot section 1. The socket section 2 is provided with an anti-detachment groove 21 with an inner concave and outer convex shape and a sealing installation groove 22. The anti-detachment groove 21 is located on the side near the port of the socket section 2. The socket section 2 is provided with an annular transition groove 23 with an outer concave and inner convex shape between the anti-detachment groove 21 and the sealing installation groove 22. The annular transition groove 23 and the sealing installation groove 22 form a corrugated structure with concave and convex shapes. The spigot section 1 is provided with a snap-fit ​​part 11 that snaps into the anti-detachment groove 21 and a sealing connection part 12 for connecting the sealing ring 3. The sealing ring 3 is installed in the sealing installation groove 22 of the socket section 2. After the spigot section 1 and the socket section 2 are connected, the inner ring of the sealing ring 3 abuts against the sealing connection part 12 of the spigot section 1.

[0022] The pipe connection structure includes an annular transition groove 23 between the anti-detachment groove 21 and the sealing installation groove 22 in the socket section 2. This annular transition groove 23 is a concave-convex annular groove, which increases the circumferential strength of the socket section 2 and seamlessly connects the anti-detachment groove 21 and the sealing installation groove 22. Furthermore, the annular transition groove 23 and the sealing installation groove 22 form a corrugated structure. During pipe drawing, the annular transition groove 23 tends to be flattened, thus acting as an axial buffer to prevent pipe breakage. Additionally, the annular transition groove 23 radially contracts towards the axis, tightening and further compressing the sealing ring 3, thereby improving sealing performance during drawing.

[0023] A fastening ring 4 is installed inside the annular transition groove 23. This fastening ring 4 acts as a clamp, securing the annular transition groove 23. The function of the fastening ring 4 is to prevent the annular transition groove 23 from being over-exposed, which could cause the sealing ring 3 to shift, thus reducing its sealing performance.

[0024] The sealing connection 12 is a solid pipe section. The solid structure of the sealing connection 12 is primarily to prevent it from denting when the sealing ring 3 is compressed. If the sealing connection 12 were hollow, denting would easily occur, leading to a decrease in the pipeline's sealing performance.

[0025] The socket section 1 has at least one annular groove 13 between the snap-fit ​​portion 11 and the sealing connection portion 12. The annular groove 13 increases the circumferential strength of the socket section 1.

[0026] The inner ring of the sealing ring 3 has at least one inwardly protruding sealing contact ring 31. The sealing contact ring 31 is angled toward the port of the socket section 1. When the socket section 1 and the socket section 2 are mated, the socket section 1 can push open the sealing contact ring 31. After installation, the sealing contact ring 31 is tightly attached to the outer wall of the sealing connection part 12. The sealing contact ring 31 on the inner ring of the sealing ring 3 is angled to facilitate the insertion of the socket section 1. Moreover, the sealing contact ring 31 has a restoring force after being pushed open, which can continuously press the sealing connection part 12 of the socket section 1, thereby improving the sealing performance.

[0027] The snap-fit ​​part 11 includes an annular base 111 integrally connected to the socket section 1 and connecting teeth 112 integrally connected to the annular base 111. The annular base 111 has a hollow structure. The connecting teeth 112 are connected to the annular base 111 through a connecting ring. The connecting ring includes a plurality of concave rings 113 and convex rings 114 sleeved on the outer periphery of the connecting teeth 112. The concave rings 113 and convex rings 114 are alternately arranged and nested in each other to form a retractable corrugated structure. When the socket section 1 and the socket section 2 are mated, the connecting teeth 112 are compressed by the socket section 2 and can be radially contracted through the connecting ring, so that the connecting teeth 112 can enter the anti-detachment groove 21. After entering the anti-detachment groove 21, the connecting teeth 112 rebound radially and snap into the anti-detachment groove 21. The connecting ring of the snap-fit ​​part 11 can drive the connecting teeth 112 to change radially. When under pressure, the connecting teeth 112 can be radially compressed, and when not under force, they can automatically return to their radial position. In this way, when the pipes are connected, the connecting teeth 112 can enter the anti-detachment groove 21 to form a snap-fit ​​structure.

[0028] See Figure 4 This illustrates another embodiment of the present application, a pipe material including a pipe body 5, with a spigot section 1 and a socket section 2 integrally provided at both ends of the pipe body 5 as described in Embodiment 1 above. When adjacent pipe materials are joined, the spigot section 1 of the first pipe material is connected to the socket section 2 of the second pipe material. The spigot section 1 and the socket section 2 are generally circular. The pipe body 5 can be a round pipe or a square pipe.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them; although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A pipe connection structure, characterized in that: The device includes a spigot section (1), a sealing ring (3), and a socket section (2) for receiving the spigot section (1). The socket section (2) is provided with an anti-detachment groove (21) that is concave inward and convex outward and a sealing mounting groove (22). The anti-detachment groove (21) is located on the side near the port of the socket section (2). The socket section (2) is provided with an annular transition groove (23) that is concave inward and convex outward between the anti-detachment groove (21) and the sealing mounting groove (22). The corrugated structure with concave and convex arrangement is formed with the sealing mounting groove (22); the socket section (1) is provided with a snap-fit ​​part (11) that snaps into the anti-detachment groove (21) and a sealing connection part (12) for connecting the sealing ring (3); the sealing ring (3) is installed in the sealing mounting groove (22) of the socket section (2), and after the socket section (1) and the socket section (2) are connected, the inner ring of the sealing ring (3) abuts against the sealing connection part (12) of the socket section (1).

2. The pipe connection structure according to claim 1, characterized in that: A fastening ring (4) is installed inside the annular transition groove (23).

3. The pipe connection structure according to claim 1, characterized in that: The sealing connection part (12) is a solid pipe section.

4. The pipe connection structure according to claim 1, characterized in that: The insertion section (1) has at least one annular groove (13) between the snap-fit ​​part (11) and the sealing connection part (12).

5. The pipe connection structure according to claim 1, characterized in that: The inner ring of the sealing ring (3) is provided with at least one inwardly protruding sealing contact ring (31). The sealing contact ring (31) is obliquely positioned towards the port of the insertion section (1). When the insertion section (1) and the socket section (2) are connected, the insertion section (1) can push open the sealing contact ring (31). After installation, the sealing contact ring (31) is tightly attached to the outer wall of the sealing connection part (12).

6. The pipe connection structure according to claim 1, characterized in that: The snap-fit ​​part (11) includes an annular base (111) integrally connected to the socket section (1) and a connecting tooth (112) integrally connected to the annular base (111). The annular base (111) is a hollow structure. The connecting tooth (112) is connected to the annular base (111) through a connecting ring. The connecting ring includes several concave rings (113) and convex rings (114) sleeved on the outer periphery of the connecting tooth (112). The concave rings (113) and convex rings (114) are alternately arranged and nested in a ring to form a retractable corrugated structure. When the socket section (1) and the socket section (2) are mated, the connecting tooth (112) is compressed by the socket section (2) and can be radially contracted through the connecting ring, so that the connecting tooth (112) can enter the anti-detachment groove (21). After the connecting tooth (112) enters the anti-detachment groove (21), it rebounds radially and snaps into the anti-detachment groove (21).

7. A pipeline connection unit, characterized in that: Includes a pipe body (5), wherein the pipe body (5) is provided with a spigot section (1) and / or a socket section (2) as described in any one of claims 1-6.

Images