Leakage-proof joint with insert

Abstract

The utility model relates to a leakproof joint with an insert, which comprises a joint body and the insert, the insert is embedded in the joint body through an injection molding part, a sealing bush is arranged in the leakproof joint, and the sealing bush is connected in the leakproof joint in a matched manner. The two ends of the sealing bush abut against the inner wall of the connector body and the inner wall of the insert respectively, a sealing area is formed, liquid in a pipeline cannot make contact with an inlaying gap, the sealing effect of a product is further guaranteed, and the hidden danger of leakage is eliminated.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe joints, and more specifically relates to an anti-leakage joint with an insert. Background Art

[0002] Plastic products with inserts are widely used, such as plastic water supply pipes. In order to strengthen the connection strength of pipe joints, the connecting part is made into a metal insert. The metal insert is embedded in the plastic by injection molding. In this way, the pipe joint can be installed with faucets, valves and other components through the metal insert part to ensure the installation strength.

[0003] However, due to the different expansion coefficients of the insert and the plastic, a gap is likely to form between the insert and the plastic after injection molding. After the pipe is connected and water pressure is applied, leakage is likely to occur in the gap between the plastic and the insert. Utility Model Content

[0004] In order to solve the above technical problems, the utility model discloses an anti-leakage joint with an insert, an anti-leakage joint with an insert, comprising a joint body and an insert, wherein the insert is embedded in the joint body through an injection molding portion, and the anti-leakage joint also includes a sealing sleeve, wherein the sealing sleeve is provided with a connecting channel connecting the joint body and the insert, and the sealing sleeve is cooperatively connected in the anti-leakage joint, and one end of the sealing sleeve abuts against the inner wall of the joint body, and the other end of the sealing sleeve abuts against the inner wall of the insert.

[0005] Preferably, an inlay gap is formed at the fitting position between the joint body and the insert, and the sealing bushing is fitted and connected to the inlay gap to prevent liquid from penetrating into the inlay gap.

[0006] Preferably, the insert includes an embedding section that cooperates with the joint body, and also includes a pipe joint section exposed from the joint body.

[0007] Preferably, a water inlet is provided at the pipe joint section, and the water inlet is extended along the axial direction of the insert or is provided at the radial surface of the insert.

[0008] Preferably, the outer wall of the water inlet is provided with an external thread.

[0009] Preferably, a first sealing ring is provided between the sealing bushing and the joint body; or / and a second sealing ring is provided between the sealing bushing and the insert; the first sealing ring and the second sealing ring are respectively provided on both sides of the inlaid seam.

[0010] Preferably, at least one groove is provided at the mating position between the insert and the connector body, and a protrusion can be formed at the groove when the insert and the connector body are injection-molded.

[0011] Preferably, a limiting step is provided in the joint body and abuts against one end of the sealing bushing, thereby limiting the axial position of the sealing bushing along the joint.

[0012] Preferably, the sealing bushing is provided with a first groove and / or a second groove, and the first groove and the second groove respectively accommodate a first sealing ring and a second sealing ring.

[0013] Preferably, the connector body is a plastic part, and the insert is a metal part.

[0014] Compared with the prior art, the anti-leakage joint with an insert in the present application has the following characteristics:

[0015] This application incorporates an insert into one end of the connector body. A sealing bushing is provided within the connector and fitted into the leak-proof connector. The two ends of the sealing bushing abut against the inner walls of the connector body and the inner walls of the insert, respectively, sealing the transition gap between the connector body and the insert. This prevents pipeline liquid from contacting the gap, further ensuring the product's sealing effectiveness and eliminating potential leakage risks. Liquid can flow through the sealing bushing, which provides a connecting channel connecting the connector body and the insert, without flowing through the sealed area, achieving a sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 is a cross-sectional view of Example 1 of the present application;

[0018] Figure 2 It is a combined schematic diagram and exploded diagram of the first embodiment of the present application;

[0019] Figure 3 is a cross-sectional view of Example 2 of the present application;

[0020] Figure 4 It is a combined schematic diagram and exploded diagram of the second embodiment of the present application;

[0021] In the figure, 1-connector body, 2-insert, 3-sealing bushing, 4-inlay seam, 21-groove, 31-first groove, 32-second groove, 311-first sealing ring, 321-second sealing ring. DETAILED DESCRIPTION

[0022] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0023] References to "one embodiment" or "embodiment" herein refer to specific features, structures, or characteristics that may be included in at least one implementation of the present invention. In the description of the present invention, it should be understood that the terms "upper," "top," "bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplification of the present invention. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and are therefore not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly specifying the number of the technical features referred to. Thus, a feature designated "first" or "second" may explicitly or implicitly include one or more of such features. Furthermore, the terms "first," "second," and the like are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in an order other than that illustrated or described herein.

[0024] Reference Figure 1-4 As shown, the embodiment of the present application provides an anti-leakage joint with an insert, the joint includes a joint body 1, an insert 2 and a sealing bushing 3. The insert 2 is embedded in the joint body 1 through the injection molding part. The sealing bushing 3 is provided with a connecting channel connecting the joint body 1 and the insert 2, and liquid can flow in the connecting channel. The sealing bushing 3 is connected to the anti-leakage joint so that one end of the sealing bushing 3 abuts against the inner wall of the joint body 1, and the other end of the sealing bushing 3 abuts against the inner wall of the insert 2, forming a reference Figure 1 Or the sealing area shown in 3 to prevent liquid from entering.

[0025] Specifically, the joint body 1 and the insert 2 form an inlay seam 4 , and the sealing bushing 3 is connected to the sealing area formed by the joint body 1 and the insert 2 to seal the inlay seam 4 therein to prevent liquid from penetrating into the inlay seam 4 .

[0026] Specifically, the position where the sealing bushing 3 seals against the inner wall of the joint body and the position where the sealing bushing 3 seals against the inner wall of the insert 2 are located on both sides of the inlay seam 4 .

[0027] In some feasible solutions, to form a sealing area, a first sealing ring 311 is provided between the sealing sleeve 3 and the joint body 1; and / or a second sealing ring 321 is provided between the sealing sleeve 3 and the insert 2. The first and second sealing rings are respectively provided on either side of the inlaid seam 4. Specifically, to improve the sealing effect, two or more sealing rings can be provided on both sides of the inlaid seam 4.

[0028] In some possible implementations, reference Figure 1 As shown in FIG3 , the insert 2 is an annular insert, and the sealing sleeve 3 is a hollow annular sleeve. In order to better fix the sealing ring, the sealing sleeve 3 is provided with a first groove 31 that can accommodate the first sealing ring 311, and a second groove 32 that can accommodate the second sealing ring 321. The first sealing ring 311 abuts against and seals the inner surface of the joint body 1, and the second sealing ring 321 abuts against and seals the inner surface of the insert 2. A sealing area is formed from the first sealing ring 311 to the second sealing ring 321, and the inlaid seam 4 is sealed therein. The sealing sleeve 3 is arranged inside the anti-leakage joint, and the hollow annular sleeve therein is a liquid channel. When the liquid flows from the joint body 1 into the insert 2, or from the insert 2 into the joint body 1, the liquid passes through the annular sleeve of the sealing sleeve 3 and does not flow into the sealing area, thereby preventing the liquid from further leaking into the internal inlaid gap, that is, ensuring that the inlaid seam 4 does not contact the liquid.

[0029] In some feasible solutions, a limiting step is provided in the joint body 1 to abut against one end of the sealing bushing 3, thereby limiting the axial position of the sealing bushing 3 along the joint, restricting the sealing area of the sealing bushing 3 and preventing it from shifting.

[0030] In some feasible solutions, the connector body 1 is a plastic component, and the insert 2 is a metal component. Insert 2 is partially embedded in the connector body 1 through injection molding. At least one groove 21 is provided at the interface between insert 2 and connector body 1. When insert 2 and connector body 1 are injection molded together, a protrusion is formed in the groove. This interaction between the groove and the protrusion increases the connection strength between insert 2 and connector body 1.

[0031] In some possible implementations, reference Figure 1 As shown in Figure 3, the insert 2 includes an embedded section that mates with the connector body 1 and a pipe joint section that is exposed from the connector body 1. The pipe joint section is provided with a water inlet that extends axially along the insert 2 or can be provided on the radial surface of the insert 2. The outer wall of the water inlet is provided with external threads for mating with other parts.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A leak-proof joint with an insert, comprising a joint body (1) and an insert (2), wherein the insert (2) is partially embedded in the joint body (1) by injection molding, and is characterized in that: It also includes a sealing bushing (3), the sealing bushing (3) is provided with a connection channel communicating with the joint body (1) and the insert (2), the sealing bushing (3) is cooperatively connected in the anti-leakage joint, one end of the sealing bushing (3) abuts against the inner wall of the joint body (1), and the other end of the sealing bushing (3) abuts against the inner wall of the insert (2); A first sealing ring (311) is provided between the sealing bushing (3) and the joint body (1); or / and a second sealing ring (321) is provided between the sealing bushing (3) and the insert (2).

2. The anti-leakage joint with insert according to claim 1, characterized in that: An inlay seam (4) is formed at the joint body (1) and the insert (2), and the sealing bushing (3) is connected to the inlay seam (4) to prevent liquid from penetrating into the inlay seam (4).

3. The anti-leakage joint with insert according to claim 1, characterized in that: The insert (2) comprises an embedding section that matches the joint body, and also comprises a pipe joint section that is exposed outside the joint body.

4. The anti-leakage joint with insert according to claim 3, characterized in that: The pipe joint section is provided with a water inlet, and the water inlet is extended along the axial direction of the insert or is provided on the radial surface of the insert.

5. The anti-leakage joint with insert according to claim 4, characterized in that: The outer wall of the water inlet is provided with an external thread.

6. The anti-leakage joint with insert according to claim 2, characterized in that: The first sealing ring (311) and the second sealing ring (321) are respectively arranged on both sides of the inlay seam (4).

7. The anti-leakage joint with insert according to claim 1, characterized in that: At least one groove (21) is provided at the mating position of the insert (2) and the connector body (1), and a bulge can be formed at the groove when the insert (2) and the connector body (1) are injection-molded together.

8. The anti-leakage joint with insert according to claim 1, characterized in that: A limiting step is provided in the joint body (1) and abuts against one end of the sealing bushing (3), thereby limiting the axial position of the sealing bushing (3) along the joint.

9. The anti-leakage joint with insert according to claim 6, characterized in that: The sealing bushing (3) is provided with a first groove (31) and / or a second groove (32), wherein the first groove (31) and the second groove (32) respectively accommodate a first sealing ring (311) and a second sealing ring (321).

10. The anti-leakage joint with insert according to any one of claims 1 to 9, characterized in that: The joint body (1) is a plastic part, and the insert (2) is a metal part.

Images