Leakage-proof socket connecting flange for steel wire mesh reinforced polyethylene composite pipe

Abstract

The utility model provides an anti-leakage socket connecting flange for a steel wire mesh reinforced polyethylene composite pipe, and relates to the technical field of connecting pieces. The utility model discloses an anti-leakage socket connecting flange for steel wire mesh reinforced polyethylene composite pipes. The anti-leakage socket connecting flange comprises two steel wire mesh reinforced polyethylene pipe bodies, buckling and pressing pieces arranged outside the steel wire mesh reinforced polyethylene pipe bodies in a sleeving manner, and a socket lining core and a socket lining core which are arranged in the two steel wire mesh reinforced polyethylene pipe bodies respectively, each of the spigot lining core and the socket lining core comprises a lining core part, a connecting part and a socket part, the lining core parts are positioned inside the steel wire mesh reinforced polyethylene pipe body, the connecting parts are positioned outside the steel wire mesh reinforced polyethylene pipe body, the two socket parts are in socket connection, at least two annular sealing rings are arranged at the socket connection part, and the two connecting parts are fixedly connected through a flange plate. The sealing effect is excellent, connection is firm and stable, and pipeline leakage can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a wire mesh reinforced polyethylene composite pipe anti-leakage socket connection flange. Background Art

[0002] When existing steel mesh reinforced polyethylene composite pipes are mechanically connected, flanges are generally used for connection, and rubber flat gaskets are used to seal the joints. When the pipe is used for a long time, the rubber gasket will age and its elasticity will decrease, resulting in leakage at the flange connection. In addition, the bolts used in the flange connection will generate stress when tightened. As time goes by, the stress will gradually release, the bolts will loosen, and leakage will also occur at the flange connection. This is a hidden danger point when ordinary flange connections are sealed with flat gaskets on pressure pipes. Utility Model Content

[0003] The utility model aims to provide a wire mesh reinforced polyethylene composite pipe anti-leakage socket connection flange, which has excellent sealing effect, reliable and stable connection and can effectively prevent pipeline leakage.

[0004] The embodiments of the present invention are implemented by the following technical solutions:

[0005] A wire mesh reinforced polyethylene composite pipe anti-leakage socket connection flange, comprising two wire mesh reinforced polyethylene pipe bodies, a pressing piece sleeved on the outside of the wire mesh reinforced polyethylene pipe bodies, and a spigot lining core and a socket lining core respectively arranged in the two wire mesh reinforced polyethylene pipe bodies, the spigot lining core and the socket lining core both comprising a lining core part, a connecting part and a socket part, the lining core part is located inside the wire mesh reinforced polyethylene pipe body, the connecting part is located outside the wire mesh reinforced polyethylene pipe body, the two socket parts are socket-connected and at least two annular sealing rings are arranged at the socket connection, and the two connecting parts are fixedly connected by a flange.

[0006] Furthermore, the outer wall of the socket portion of the socket liner is provided with a first annular sealing groove, and a first annular sealing ring is provided in the first annular sealing groove.

[0007] Furthermore, a second annular sealing groove is provided on the end surface of the socket portion of the socket lining core, and a second annular sealing ring is provided in the second annular sealing groove.

[0008] Furthermore, the inner wall of the socket portion of the socket liner core is provided with a third annular sealing groove, and a third annular sealing ring is provided in the third annular sealing groove.

[0009] Furthermore, a fourth annular sealing groove is provided on one side of the connection portion of the socket liner core close to the plug liner core, and a fourth annular sealing ring is provided in the fourth annular sealing groove.

[0010] Furthermore, the outer wall of the wire mesh reinforced polyethylene pipe body is provided with a serrated protrusion, and the inner wall of the buckling piece is provided with a serrated groove, and the serrated protrusion is matched with the serrated groove.

[0011] Furthermore, the length of the buckling piece is consistent with the length of the lining core portion.

[0012] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0013] In the utility model, after the steel wire mesh reinforced polyethylene pipe body is buckled together with the buckling piece, the socket lining core and the plug lining core, the socket part of the socket lining core and the socket part of the plug lining core are connected by socket, and the connection part of the socket lining core and the connection part of the plug lining core are connected by a flange to form a seal. This method effectively combines the socket seal and the buckling flange connection technology, and has excellent sealing effect and reliable and stable connection. In addition, an annular sealing ring is provided at the socket connection between the socket lining core and the plug lining core, and the end face seal of the traditional rubber flat gasket is improved to the axial seal of the annular sealing ring. After long-term use, even if the flange connection stress disappears and the bolts are loosened, the plug lining core can only produce limited displacement in the socket lining core, and the annular sealing ring between the socket lining core and the plug lining core can still maintain a tight sealing state, thereby playing a role in preventing leakage, and completely solving the leakage problem of the traditional flange after a long period of use. The connecting flange makes the pipeline system safer and more reliable, and has huge economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A structural schematic diagram of a first embodiment of a wire mesh reinforced polyethylene composite pipe anti-leakage socket connection flange provided in Example 1 of the utility model;

[0016] Figure 2 A structural schematic diagram of a second embodiment of a wire mesh reinforced polyethylene composite pipe anti-leakage socket connection flange provided in Example 1 of the utility model;

[0017] Figure 3 A schematic diagram of the structure of the socket liner provided in Example 1 of the utility model;

[0018] Figure 4A structural schematic diagram of a third embodiment of a wire mesh reinforced polyethylene composite pipe anti-leakage socket connection flange provided in Example 1 of the utility model;

[0019] Figure 5 A structural schematic diagram of a fourth embodiment of a wire mesh reinforced polyethylene composite pipe anti-leakage socket connection flange provided in Example 1 of the utility model;

[0020] Figure 6 A schematic diagram of the structure of the socket lining core provided in Example 1 of the utility model;

[0021] Figure 7 A schematic diagram of the structure of a steel mesh reinforced polyethylene pipe body provided in Example 1 of the utility model;

[0022] Figure 8 This is a schematic structural diagram of the buckling piece provided in Example 1 of the utility model.

[0023] Icons: 1-wire mesh reinforced polyethylene pipe body, 2-fastening piece, 3-flange, 4-socket lining core, 5-socket lining core, 6-first annular sealing ring, 7-bolt, 8-second annular sealing ring, 9-first annular sealing groove, 10-second annular sealing groove, 11-lining core part, 12-connecting part, 13-socket part, 14-third annular sealing ring, 15-fourth annular sealing ring, 16-third annular sealing groove, 17-fourth annular sealing groove, 18-serrated protrusion, 19-serrated groove. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example 1

[0030] The present embodiment provides a wire mesh reinforced polyethylene composite pipe anti-leakage socket connection flange, comprising two wire mesh reinforced polyethylene pipe bodies 1, a buckling piece 2 sleeved on the outside of the wire mesh reinforced polyethylene pipe body 1, and a spigot lining 4 and a socket lining 5 respectively arranged in the two wire mesh reinforced polyethylene pipe bodies 1, the spigot lining 4 and the socket lining 5 both comprising a lining part 11, a connecting part 12 and a socket part 13, the lining part 11 is located inside the wire mesh reinforced polyethylene pipe body 1, the connecting part 13 is located outside the wire mesh reinforced polyethylene pipe body 1, the two socket parts 13 are socket-connected and at least two annular sealing rings are arranged at the socket connection, and the two connecting parts 12 are fixedly connected by a flange 3.

[0031] Among them, the inner wall of the flange 3 can be pressed against the outer wall of the buckling piece 2, and the flanges 3 are connected by bolts 7. When the wire mesh reinforced polyethylene pipe body 1 is buckled together with the buckling piece 2, the socket lining core 5, and the plug lining core 4, the socket 13 of the socket lining core 5 and the socket lining core 4 are connected by socket, and the flange 3 is used to connect the connection part 12 of the socket lining core 5 and the connection part 12 of the plug lining core 4 to form a seal. This method effectively combines the socket seal and the buckling flange connection technology, with excellent sealing effect and reliable and stable connection. In addition, an annular sealing ring is provided at the socket connection between the socket liner 5 and the plug liner 1, and the end face seal of the traditional rubber flat gasket is improved to an axial seal of the annular sealing ring. After long-term use, even if the flange connection stress disappears and causes the bolt 7 to loosen, the plug liner 4 can only produce limited displacement in the socket liner 5, and the annular sealing ring between the socket liner 5 and the plug liner 4 can still maintain a tight sealing state, thereby playing an anti-leakage role, and completely solving the leakage problem of traditional flanges after long-term use.

[0032] Reference Figure 1 The outer wall of the socket part 13 of the spigot liner 4 is provided with a first annular sealing groove 9, and a first annular sealing ring 6 is provided in the first annular sealing groove 9. At this time, the first annular sealing ring 6 realizes the axial sealing of the spigot liner 4 and the socket liner 5. In addition, the first annular sealing groove 9 is provided in the socket part 13 of the spigot liner 4. When in use, the spigot liner 4 with the first annular sealing ring 6 can be directly pushed into the socket liner 5. The first annular sealing ring 6 generates sufficient compression to realize secondary crimping (i.e., interference crimping), form an effective seal, improve the sealing effect, and also realize quick installation.

[0033] Reference Figure 2-3 The end surface of the socket portion 13 of the spigot core 4 is provided with a second annular sealing groove 10, and a second annular sealing ring 8 is provided in the second annular sealing groove 10. While the first annular sealing ring 6 realizes the axial sealing of the spigot core 4 and the socket core 5, the second annular sealing ring 8 can also realize the radial sealing of the spigot core 4 and the socket core 5, so as to realize bidirectional sealing and improve the anti-leakage effect.

[0034] Reference Figure 4 The inner wall of the socket portion 13 of the socket core 5 is provided with a third annular sealing groove 16, and a third annular sealing ring 14 is provided in the third annular sealing groove 16. At this time, the third annular sealing ring 14 realizes the axial sealing of the spigot core 4 and the socket core 5.

[0035] Reference Figure 5-6A fourth annular sealing groove 17 is provided on one side of the connection portion 12 of the bell core 5 close to the spigot core 4, and a fourth annular sealing ring 15 is provided in the fourth annular sealing groove 17. While the third annular sealing ring 14 realizes the axial sealing of the spigot core 4 and the bell core 5, the fourth annular sealing ring 15 can also realize the radial sealing of the spigot core 4 and the bell core 5, so as to realize bidirectional sealing and improve the anti-leakage effect.

[0036] Reference Figure 7-8 The outer wall of the steel mesh reinforced polyethylene pipe body 1 is provided with a serrated protrusion 18, and the inner wall of the buckling piece 2 is provided with a serrated groove 19, and the serrated protrusion 18 is adapted to the serrated groove 19. The serrated protrusion 18 and the serrated groove 19 are installed and connected to realize the tight connection between the buckling piece 2 and the steel mesh reinforced polyethylene pipe body 1, which can prevent the buckling piece 2 from moving on the steel mesh reinforced polyethylene pipe body 1, and improve the stability and firmness during crimping.

[0037] In this embodiment, the length of the buckling piece 2 is consistent with the length of the lining core portion 11. This can improve the crimping effect of the buckling piece 2, the steel wire mesh reinforced polyethylene pipe body 1 and the lining core portion 11.

[0038] The working principle of a wire mesh reinforced polyethylene composite pipe anti-leakage socket connection flange is: first, the flange 3 is put on the wire mesh reinforced polyethylene pipe body 1, the lining core part 11 of the spigot lining core 4 and the lining core part 11 of the socket lining core 5 are respectively placed in the two wire mesh reinforced polyethylene pipe bodies 1, and the wire mesh reinforced polyethylene pipe body 1, the buckle 2, the spigot lining core 4, and the socket lining core 5 are respectively crimped, and at the same time, the spigot lining core 4 with the first annular sealing ring 6 is pushed into the socket lining core 5 for socket connection, and the first annular sealing ring 6 generates enough compression to achieve secondary crimping (i.e., interference crimping) to form an effective seal. Then the end face of the flange 3 is abutted against the side wall of the connecting part 12, and the flange 3 is fastened with bolts 7 to achieve fixed connection between the spigot lining core 4 and the socket lining core 5.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wire mesh reinforced polyethylene composite pipe anti-leakage socket connection flange, characterized in that: It includes two wire mesh reinforced polyethylene pipe bodies, a buckling piece sleeved on the outside of the steel mesh reinforced polyethylene pipe bodies, and a plug lining core and a socket lining core respectively arranged in the two steel mesh reinforced polyethylene pipe bodies, the plug lining core and the socket lining core both include a lining core part, a connecting part and a socket part, the lining core part is located inside the steel mesh reinforced polyethylene pipe body, the connecting part is located outside the steel mesh reinforced polyethylene pipe body, the two socket parts are socket-connected and at least two annular sealing rings are arranged at the socket connection, and the two connecting parts are fixedly connected by a flange.

2. The anti-leakage socket connection flange of the wire mesh reinforced polyethylene composite pipe according to claim 1 is characterized in that: The outer wall of the socket portion of the socket lining core is provided with a first annular sealing groove, and a first annular sealing ring is provided in the first annular sealing groove.

3. The anti-leakage socket connection flange of the wire mesh reinforced polyethylene composite pipe according to claim 2 is characterized in that: The end surface of the socket portion of the socket lining core is provided with a second annular sealing groove, and a second annular sealing ring is provided in the second annular sealing groove.

4. The anti-leakage socket connection flange of the wire mesh reinforced polyethylene composite pipe according to claim 1, characterized in that: The inner wall of the socket portion of the socket lining core is provided with a third annular sealing groove, and a third annular sealing ring is provided in the third annular sealing groove.

5. The anti-leakage socket connection flange of the wire mesh reinforced polyethylene composite pipe according to claim 4, characterized in that: A fourth annular sealing groove is provided on one side of the connection portion of the socket liner core close to the plug liner core, and a fourth annular sealing ring is provided in the fourth annular sealing groove.

6. The anti-leakage socket connection flange of the wire mesh reinforced polyethylene composite pipe according to claim 1, characterized in that: The outer wall of the wire mesh reinforced polyethylene pipe body is provided with a serrated protrusion, and the inner wall of the buckling piece is provided with a serrated groove, and the serrated protrusion is matched with the serrated groove.

7. The anti-leakage socket connection flange of the wire mesh reinforced polyethylene composite pipe according to claim 1, characterized in that: The length of the buckling piece is consistent with the length of the lining core portion.

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