Pipeline connection injection molding socket head

Abstract

The utility model relates to the field of pipeline connection structures, in particular to a pipeline connection injection molding socket head. The sleeve comprises an outer sleeve and an inner sleeve. One end of the outer sleeve is provided with a socket part; one end of the inner sleeve is provided with a spigot part inserted into the inner side of the socket part, and the spigot part and the socket part are in limited connection through a limiting structure and are in sealed connection through a first rubber ring. According to the utility model, the socket connection between the outer sleeve and the inner sleeve is subjected to anti-drop limiting through the limiting structure, and is sealed through the rubber ring, so that the connection firmness and the sealing performance are ensured, and leakage is not easy to occur.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection structures, and in particular to a pipe connection injection molded connector. Background Technology

[0002] Corrugated pipes and straight-walled pipes are currently widely used in water supply systems, sewage systems, and municipal drainage. When laying multiple pipes, connecting structures are needed to connect any two adjacent straight pipes (two corrugated pipes or two straight-walled pipes) to assemble a complete pipeline of the required length.

[0003] Existing straight pipes can be connected by a sleeve structure. For split sleeve joints, including socket-connected outer and inner sleeves, the connection between the outer and inner sleeves is not reliable and is prone to misalignment, leading to leakage. Utility Model Content

[0004] The purpose of this utility model is to address the problems existing in the background technology by proposing a pipe connection injection-molded socket plug. The socket connection between the outer sleeve and the inner sleeve is prevented from falling off by a limiting structure, and sealed by a rubber ring to ensure a reliable connection and a tight seal, making it less prone to leakage.

[0005] The technical solution of this utility model is a pipe connection injection molding socket, including an outer sleeve and an inner sleeve; one end of the outer sleeve has a socket; one end of the inner sleeve has a spigot that inserts into the inside of the socket, the spigot and the socket are limited and connected by a limiting structure and sealed by a rubber ring.

[0006] Preferably, the rubber ring is located between the limiting structure and the outer end of the socket.

[0007] Preferably, both the other end of the outer sleeve and the other end of the inner sleeve have insertion portions.

[0008] Preferably, the outer and inner diameters of the two insertion sections are equal.

[0009] Preferably, the inner circumferential surface of the socket portion has a first groove for inserting the rubber ring, and the outer circumferential surface of the insertion portion has a second groove for inserting the rubber ring, both the first groove and the second groove being annular grooves.

[0010] Preferably, the socket portion has an outwardly protruding limiting ring portion, which gradually tilts outward from one end of the inner side to one end of the outer side of the socket portion and forms a groove on the inner side. The outer periphery of the insertion portion has multiple notches and correspondingly forms a buckle portion that can be locked in the groove. The tilting direction of the buckle portion is the same as that of the limiting ring portion. The limiting ring portion and the buckle portion form a limiting structure.

[0011] Preferably, the inner circumferential surface of the socket has an inwardly protruding latching part one, and the outer circumferential surface of the insertion part has an outwardly protruding latching part two. The latching part one and the latching part two are latched together and form a limiting structure.

[0012] Preferably, the outer circumference of the outer sleeve is provided with multiple reinforcing ribs.

[0013] Preferably, the outer tube is provided with a set of pressure injection holes and pressure holes.

[0014] Compared with the prior art, this utility model has the following beneficial technical effects: This utility model uses a limiting structure to prevent the socket connection between the outer sleeve and the inner sleeve from coming loose, and uses a rubber ring for sealing, ensuring a reliable and airtight connection, and preventing leakage. This socket can be used to simultaneously insert two corrugated pipes onto the outer side or the inner side, and can also be used to simultaneously insert two straight-walled pipes onto the outer side or the inner side, all sealed by a second rubber ring, thus having a wide range of applications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention, which is inserted into the inner side of the corrugated pipe.

[0016] Figure 2 for Figure 1 Structural sectional view;

[0017] Figure 3 This is a cross-sectional view of the structure of Embodiment 1 of this utility model, inserted into the outside of the corrugated pipe;

[0018] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle;

[0019] Figure 5 This is a cross-sectional view of the structure of Embodiment 2 of this utility model, inserted into the inner side of a straight-walled tube;

[0020] Figure 6 This is a cross-sectional view of the structure of Embodiment 2 of this utility model, inserted into the outside of the straight-walled tube;

[0021] Figure 7 for Figure 6 Enlarged view of the structure at point B.

[0022] Reference numerals: 11, Outer sleeve 1; 111, Limiting ring; 12, Inner sleeve 1; 121, Notch; 122, Buckle plate; 21, Outer sleeve 2; 211, Buckle part 1; 22, Inner sleeve 2; 221, Buckle part 2; 3, Rubber ring 1; 4, Rubber ring 2; 5, Reinforcing rib. Detailed Implementation

[0023] Example 1

[0024] like Figures 1-4 As shown in the figure, the pipe connection injection molding socket proposed in this embodiment includes an outer sleeve and an inner sleeve.

[0025] The outer sleeve 11 has a socket at one end and a insertion part at the other end. The inner sleeve 12 has a insertion part at one end that inserts into the inside of the socket, and also has a insertion part at the other end. The insertion part is used to insert a corrugated pipe or a straight-walled pipe. Both the outer sleeve 11 and the inner sleeve 12 are manufactured by injection molding.

[0026] The outer and inner diameters of the two insertion sections are equal. The two corrugated tubes can be inserted into the inner side of the outer sleeve 11 and the inner sleeve 12, respectively, and are sealed together by two rubber rings 4. The rubber rings 4 are located on the outer periphery of the corrugated tubes, specifically at the troughs of the corrugations, and are respectively located inside the outer sleeve 11 and the inner sleeve 12. Alternatively, the two corrugated tubes can also be inserted into the inner side of the outer sleeve 11 and the outer side of the inner sleeve 12, respectively, and are sealed together by two rubber rings 4. In this case, the rubber rings 4 are located inside the corrugated tubes, and are respectively located outside the outer sleeve 11 and the inner sleeve 12. These two insertion methods (inner and outer insertion) are also applicable to the insertion of straight-walled tubes, i.e., the two straight-walled tubes can be inserted into the inner side of the outer sleeve 11 and the inner sleeve 12, or respectively into the outer side of the outer sleeve 11 and the inner sleeve 12.

[0027] The spigot of the inner sleeve 12 and the socket of the outer sleeve 11 are connected by a limiting structure and sealed by a rubber ring 3.

[0028] The inner circumferential surface of the socket of the outer sleeve 11 has a groove 1 for the rubber ring 3 to be inserted, and the outer circumferential surface of the insertion part of the inner sleeve 12 has a groove 2 for the rubber ring 3 to be inserted. Both grooves 1 and 2 are annular grooves. The rubber ring 3 can be securely engaged in grooves 1 and 2 to provide a sealing effect. At the same time, grooves 1 and 2 also position the outer sleeve 11 and inner sleeve 12 for socket installation. After the rubber ring 3 is engaged, it indicates that the outer sleeve 11 and inner sleeve 12 are properly installed.

[0029] like Figures 2-4As shown, the socket portion has an outwardly protruding limiting ring portion 111. The limiting ring portion 111 gradually slopes outward from one end of the inner side to one end of the outer side of the socket portion, and a groove is formed on the inner side. The outer periphery of the spigot portion has multiple notches 121 and correspondingly forms a snap-on portion 122 that can be locked in the groove. The slope direction of the snap-on portion 122 is the same as that of the limiting ring portion 111. The limiting ring portion 111 and the snap-on portion 122 form a limiting structure. When the inner sleeve 12 is inserted into the inner side of the outer sleeve 11, the snap-on portion 122 is pushed and deformed by the inner wall of the socket portion. As the inner sleeve 12 and the outer sleeve 11 continue to be inserted, the snap-on portion 122 will rebound and lock in the groove on the inner side of the limiting ring portion 111, realizing the locking and limiting between the inner sleeve 12 and the outer sleeve 11. After the locking is completed, the rubber ring 3 seals between the outer sleeve 11 and the inner sleeve 12.

[0030] like Figure 2 and Figure 3 As shown, the rubber ring 3 is located between the limiting structure and the outer end of the socket, offset from the notch on the inner sleeve 12, to ensure the sealing of the socket formed by the connection of the outer sleeve 11, the inner sleeve 12 and the rubber ring 3.

[0031] To enhance structural strength, multiple reinforcing ribs 5 are provided on the outer periphery of the outer tube 11. The reinforcing ribs 5 are ring-shaped and are arranged side by side on the outer periphery of the outer tube 11.

[0032] This embodiment uses a limiting structure to prevent the socket connection between the outer sleeve 11 and the inner sleeve 12 from detaching, and seals it with rubber rings to ensure a reliable and airtight connection, preventing leakage. Specifically, the snap-fit ​​part 122 engages with the groove on the inner side of the limiting ring part 111 to achieve a snap-fit ​​connection between the outer sleeve 11 and the inner sleeve 12, and a sealing connection is achieved with rubber ring 3, ensuring a reliable socket connection between the outer sleeve 11 and the inner sleeve 12. When inserting corrugated pipes or straight-walled pipes, the two corrugated pipes can be inserted onto the outside of the outer sleeve 11 and the inner sleeve 12 respectively, each sealed with a second rubber ring 4, or they can be inserted onto the inside of the outer sleeve 11 and the inner sleeve 12 respectively, each sealed with a second rubber ring 4. Similarly, the two straight-walled tubes can be inserted simultaneously on the outside of the outer sleeve 11 and the inner sleeve 12, or simultaneously on the inside of the outer sleeve 11 and the inner sleeve 12, and each can be sealed by a rubber ring 4. This embodiment has a wide range of applications.

[0033] Specifically, when two corrugated pipes are inserted into the outer circumference of the outer sleeve 11 and the inner sleeve 12 respectively, they can be connected by hot melt adhesive between one corrugated pipe and the outer sleeve 11, and between the other corrugated pipe and the inner sleeve 12. Both the outer sleeve 11 and the inner sleeve 12 have bosses on their outer circumferences, with built-in electrothermal fuses. Leads extend outwards from the electrothermal fuses, and when energized through these leads, the bosses melt, diffuse, and solidify, connecting the two corrugated pipes to the outer sleeve 11 and the inner sleeve 12 respectively, thus improving the reliability of the corrugated pipe connection. Alternatively, the connection can be made without hot melt adhesive; instead, adhesive can be directly injected between the corrugated pipe and the outer sleeve 11, and between the other corrugated pipe and the inner sleeve 12. The adhesive will then cure and achieve the connection effect.

[0034] Example 2

[0035] This embodiment presents a pipe connection injection-molded connector. Compared to Embodiment 1, this embodiment, as follows: Figures 5-7 As shown, the outer sleeve 11 in Embodiment 1 is replaced with the outer sleeve 21 in this embodiment, and the inner sleeve 12 in Embodiment 1 is replaced with the inner sleeve 22 in this embodiment. The difference between the outer sleeve 21 and the outer sleeve 11 is that the inner circumferential surface of the socket of the outer sleeve 21 has an inwardly protruding snap-fit ​​part 211. The difference between the inner sleeve 22 and the inner sleeve 12 is that the outer circumferential surface of the insertion part of the inner sleeve 22 has an outwardly protruding snap-fit ​​part 221. The snap-fit ​​parts 211 and 221 are snap-fitted together and form a limiting structure. The snap-fit ​​part 211 has a slope 1 that gradually slopes inward from the outer end to the inner end of the socket and a snap-fit ​​surface 1 that connects to the slope 1. The snap-fit ​​part 221 has a slope 2 that slopes in the same direction as the slope 1 and a snap-fit ​​surface 2 that connects to the slope 2. During the socket connection of outer sleeve 21 and inner sleeve 22, inclined surface 1 and inclined surface 2 come into contact and elastically push against each other. As the socket connection continues, after the snap fastening part 1 211 and snap fastening part 221 snap together, snap fastening surface 1 and snap fastening surface 2 snap into contact.

[0036] Rubber ring 3 seals the connection between outer sleeve 21 and inner sleeve 22. At this time, rubber ring 3 is located between the limiting structure and the outer end of the socket.

[0037] Alternatively, the rubber ring 3 can be placed in another position, so that the limiting structure is located between the rubber ring 3 and the outer end of the socket. Neither the outer sleeve 21 nor the inner sleeve 22 has a notch. The rubber ring 3 can also ensure the seal between the outer sleeve 21 and the inner sleeve 22 at this position, and there will be no leakage.

[0038] In this embodiment, the limiting connection between the outer sleeve 21 and the inner sleeve 22 is achieved by the snap-fit ​​limiting between the snap-fit ​​part 211 and the snap-fit ​​part 221. After the connector is connected, the two straight-walled tubes can be inserted into the outer periphery of the outer sleeve 21 and the inner sleeve 22 respectively, and each is sealed by a rubber ring 4; the two straight-walled tubes can also be inserted into the inner periphery of the outer sleeve 21 and the inner sleeve 22 respectively, and are also sealed by a rubber ring 4. In addition, the connector in this embodiment can also be used to connect corrugated tubes. The two corrugated tubes can be inserted into the outer periphery of the outer sleeve 21 and the inner sleeve 22 respectively, and are sealed by a rubber ring 4; the two corrugated tubes can also be inserted into the inner periphery of the outer sleeve 21 and the inner sleeve 22 respectively, and are also sealed by a rubber ring 4.

[0039] Example 3

[0040] This embodiment proposes a pipe connection injection-molded socket. Compared to Embodiments 1 and 2, this embodiment features a set of pressure injection holes and pressure holes on the outer sleeve. Both the pressure injection holes and pressure holes are sealed by default with sealing plugs. When testing the sealing performance of the socket, the sealing plugs are removed, and the outer ends of the two corrugated pipes or two straight-walled pipes connected to the socket are sealed. The pressure injection holes are connected to an external water injection device or an air injection device, and the pressure holes are connected to an external pressure testing device. Water is injected into the pipe through the water injection device, or air is added to the pipe through the air injection device. After injection, the water pressure or air pressure is measured using the corresponding pressure testing device. This allows for the testing of the water tightness of the socket's sealing connection. If the measured pressure value is lower than a preset value, it indicates a leak. If the measured pressure value reaches the preset value, it indicates that the socket is of qualified quality and can achieve effective water tightness sealing. By testing the sealing performance of each individual socket, the water tightness of each socket can be detected, facilitating timely handling and ensuring construction progress, as well as facilitating subsequent pipeline maintenance.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A pipe connection injection molded connector, characterized in that, include: The outer sleeve has a socket at one end; The inner sleeve has a spigot at one end that can be inserted into the inside of the socket. The spigot and the socket are connected by a limiting structure and sealed by a rubber ring (3).

2. The pipe connection injection-molded connector according to claim 1, characterized in that, The rubber ring (3) is located between the limiting structure and the outer end of the socket.

3. The injection-molded connector for pipe connection according to claim 1, characterized in that, Both the outer sleeve and the inner sleeve have insertion sections at the other end.

4. A pipe connection injection-molded connector according to claim 3, characterized in that, The outer and inner diameters of the two cannula sections are equal.

5. A pipe connection injection-molded connector according to claim 1, characterized in that, The inner circumferential surface of the socket has a groove 1 for inserting the rubber ring 1 (3), and the outer circumferential surface of the insertion part has a groove 2 for inserting the rubber ring 1 (3). Both groove 1 and groove 2 are annular grooves.

6. A pipe connection injection-molded connector according to claim 1, characterized in that, The socket has an outwardly protruding limiting ring (111). The limiting ring (111) gradually tilts outward from one end of the inner side to one end of the outer side of the socket and forms a groove on the inner side. The outer periphery of the insertion part has multiple notches (121) and correspondingly forms a snap plate (122) that can be locked in the groove. The tilting direction of the snap plate (122) is the same as that of the limiting ring (111). The limiting ring (111) and the snap plate (122) form a limiting structure.

7. A pipe connection injection-molded connector according to claim 1, characterized in that, The inner circumferential surface of the socket has an inwardly protruding latching part one (211), and the outer circumferential surface of the insertion part has an outwardly protruding latching part two (221). The latching part one (211) and the latching part two (221) are latched together and form a limiting structure.

8. A pipe connection injection-molded connector according to claim 1, characterized in that, Multiple reinforcing ribs are provided on the outer periphery of the outer tube (5).

9. A pipe connection injection-molded connector according to claim 1, characterized in that, The outer tube is equipped with a set of pressure injection holes and pressure holes.

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