CN115492999A

CN115492999A - Leak-proof joint

Info

Publication number: CN115492999A
Application number: CN202210598733.4A
Authority: CN
Inventors: 赖炎村; 林志明; 陈震阳
Original assignee: FLUXTEK INTERNATIONAL CORP
Current assignee: FLUXTEK INTERNATIONAL CORP
Priority date: 2021-06-18
Filing date: 2022-05-30
Publication date: 2022-12-20
Also published as: CN217762467U; TWI780782B; TW202300804A

Abstract

The invention relates to a leakage-proof joint, which comprises a joint body, wherein the joint body is provided with a first joint part and a second joint part, the first joint part and the second joint part are respectively provided with an external thread part, the external thread part is in threaded connection with an internal thread part of a water pipe, and the joint body is sleeved with an elastic leakage-proof ring adjacent to the external thread part. The outer peripheral wall of the leakage stopping ring is provided with external threads, the outer diameter of the leakage stopping ring is larger than the first joining part/the second joining part of the joint body, and the thread part of the leakage stopping ring is screwed with the inner screwed pipe of the water pipe, so that the joint body and the joint part of the water pipe have a leakage stopping effect.

Description

Leak-proof joint

Technical Field

The present invention relates to a joint for water pipe, and more particularly to a joint having at least one elastic anti-leakage ring annularly connected to the outer circumference of the joint, wherein the anti-leakage ring has external threads on the outer diameter thereof, and the joint also has male thread sections, and the external thread diameter of the anti-leakage ring is larger than the diameter of the male thread sections of the joint, and is screwed with an internal pipe of a water pipe together to achieve the anti-leakage effect.

Background

The general water purifier is connected to a water inlet pipe and a water outlet pipe, water in the water pipe is conveyed into the water purifier and filtered by the water purifier, so that purified water flows out of the water outlet pipe, the joint is used for connecting the water inlet pipe/the water outlet pipe, the water inlet pipe/the water outlet pipe and the joint are connected together in a screw connection mode, and in order to enable the joint of the water inlet pipe/the water outlet pipe and the joint to have a water seepage prevention effect, a leakage stopping adhesive tape is wound on an external thread of the joint to achieve a leakage prevention effect. However, in practical operation, when the tightness of the external thread of the joint and the internal thread of the water pipe is different, the number of turns of the leakage-stopping adhesive tape wound around the external thread of the joint is difficult to control, and often the number of turns of the leakage-stopping adhesive tape wound around the external thread of the joint is too many, so that the internal thread of the water pipe and the external thread of the joint cannot be smoothly screwed together, and if the number of turns of the leakage-stopping adhesive tape wound around the external thread of the joint is too few, although the internal thread of the water pipe and the external thread of the joint are screwed together, if the leakage-stopping adhesive tape is a water seepage phenomenon, the thickness of the leakage-stopping adhesive tape wound around the external thread of the joint is insufficient, the water pipe and the joint are unscrewed, the leakage-stopping adhesive tape is wound around the external thread of the joint again and screwed together with the internal thread of the water pipe, and the leakage-stopping adhesive tape is often repeated and cannot achieve the leakage-preventing effect.

The new patent number M512086 of Taiwan in the well-known knowledge discloses a water purifier joint with compression resistance and leakage prevention, the joint is convexly provided with a joint part, a thread part is formed at the outer edge of the joint part, a dentate screw thread section is formed at one section of the thread part, and a soft water retaining part is coated outside the dentate screw thread section.

However, in practical implementation, the metal joint is not machined well to form the toothed thread section on one section of the threaded portion, which results in time and labor consuming machining and is not economical.

Disclosure of Invention

The invention aims to provide a leakage-proof joint, which at least has one end part, wherein the periphery of the end part is provided with a male thread section, the outer diameter of the male thread section is larger than the pipe diameter of the joint, the pipe diameter of the joint is sleeved with an elastic leakage-stopping ring, the outer diameter of the leakage-stopping ring is larger than the outer diameter of the male thread section, and the leakage-stopping ring is provided with an external thread, so that the male thread section of the joint, the male thread of the leakage-stopping ring and an internal thread pipe of a water pipe are screwed, the leakage-stopping effect can be achieved, and the leakage-preventing joint has the advantages of rapidness and easiness in assembly.

To achieve the above object, the present invention provides a leakage-proof joint connected to a water pipe, the leakage-proof joint including a joint body and a first elastic leakage-proof ring, the joint body having a first connection portion, the first connection portion having a first male thread section near an opening thereof, the first male thread section having a diameter larger than that of the first connection portion, the first leakage-proof ring being sleeved to the first connection portion, the first leakage-proof ring having an external thread with a diameter larger than that of the first male thread section of the joint body, the water pipe having a connection portion, the connection portion having an internal thread pipe, the internal thread of the connection portion being screwed to the first male thread section of the first connection portion and the external thread of the first leakage-proof ring.

In some embodiments, the first engagement portion has a second male thread segment adjacent the first male thread segment, the first leak-stop ring has an internal thread, and the internal thread of the first leak-stop ring is threaded with the second male thread segment of the first engagement portion.

In some embodiments, the first male threaded section has a female neck configured with a second leak-stop ring having an external thread, the second leak-stop ring having a smaller diameter than the first leak-stop ring, the internal coil of the water pipe being in threaded engagement with the external thread of the second leak-stop ring.

In some embodiments, the female neck is provided with a third thread segment, the second leak-proof ring is provided with an internal thread, and the internal thread of the second leak-proof ring is screwed with the third thread segment of the female neck.

In some embodiments, the first leak-stopping ring is made of a rubber material.

In some embodiments, the connector body further includes a second engagement portion, and the first engagement portion and the second engagement portion are 90 ° to each other.

In some embodiments, the pipe diameter of the first joint is smaller than the pipe diameter of the second joint.

The invention further provides a leakage-proof joint which is connected with a water pipe and comprises a joint body and an elastic leakage-proof ring, wherein the joint body is provided with a first connecting part, the diameter of the first connecting part towards the opening direction of the first connecting part is gradually reduced and has a taper, a first male thread section is arranged on the first connecting part close to the opening of the first connecting part, and the first connecting part is provided with a concave neck; the leak-stopping ring is annularly arranged on the concave neck and is provided with an external thread, the round diameter of the external thread of the leak-stopping ring is larger than that of the first male thread section of the joint body, the water pipe is provided with a connecting part, the connecting part is provided with an internal screw pipe, and the internal screw pipe of the connecting part is screwed with the first male thread section of the first connecting part and the external thread of the leak-stopping ring.

In some embodiments, the leak-stopping ring is made of rubber.

In some embodiments, the connector body further includes a second engagement portion, and the first engagement portion and the second engagement portion are 90 ° with respect to each other.

Thus, the leakage-proof effect can be achieved, and the advantages of quick and easy assembly can be achieved, thereby having industrial applicability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a perspective view of a first embodiment of the present invention.

Fig. 2 is a cross-sectional view of a first embodiment of the present invention.

Fig. 3 is a cross-sectional view of a second embodiment of the present invention.

Fig. 4 is a sectional view of a second embodiment of the present invention in combination with a water pipe.

Fig. 5 is a cross-sectional view of a third embodiment of the present invention.

Fig. 6 is a sectional view of a combination of a third embodiment of the present invention with a water pipe.

Description of the main element symbols:

100. 100a, 100b: a water pipe; 110. 110a, 110b: a connecting portion; 120. 120a, 120b: an internal thread; 10. 10a, 10b: a connector body; 11. 11a, 11b: a first engagement portion; 111. 111a, 111b: a first male thread segment; 12. 12a, 12b: a second engagement portion; 112. 112a: a second male thread segment; 113a, 113b: a concave neck; 114a: a third thread segment; 20. 20a, 20b, 20c: a leakage-stopping ring; 21. 21a: an internal thread; 22. 22a, 22b: and (4) external threads.

Detailed Description

The embodiments of the present invention will be described in detail with reference to the drawings, wherein the drawings are simplified schematic drawings only for illustrating the basic structure of the invention, and therefore, only the components related to the invention are shown in the drawings, and the components are not drawn with the number, shape, size ratio, etc. in the implementation, the specification and the size in the actual implementation are actually an optional design, and the layout of the components may be more complicated.

The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the description, unless explicitly described to the contrary, the word "comprise" will be understood to mean that the recited components are included, but not to exclude any other components.

Referring to fig. 1 and 2, fig. 1 is a perspective view of a first embodiment of the present invention, and fig. 2 is a cross-sectional view of the first embodiment of the present invention. The invention discloses a leakage-proof joint, which is connected with a water pipe 100, and comprises a joint body 10 and a first elastic leakage-stopping ring 20, in the embodiment, the joint body 10 is provided with a first connecting part 11 and a second connecting part 12, the first connecting part 11 and the second connecting part 12 are 90 degrees, the pipe diameter of the first connecting part 11 is smaller than that of the second connecting part 12, the first connecting part 11 is provided with a first male thread section 111 close to the opening thereof, the circular diameter of the first male thread section 111 is larger than that of the first connecting part 11 of the joint body 10, and the first connecting part 11 of the joint body 10 is provided with a second male thread section 112 close to the first male thread section 111.

The first leakage-stopping ring 20 may be made of rubber, the first leakage-stopping ring 20 has an internal thread 21 and an external thread 22, the internal thread 21 is screwed with the second male thread section 112 of the joint body 10, and the diameter of the external thread 22 of the first leakage-stopping ring 20 is larger than the diameter of the first male thread section 111 of the joint body 10.

The water pipe 100 has a connecting portion 110 at an end thereof adjacent to the joint body 10, the connecting portion 110 is provided with an internal threaded pipe 120, and the internal threaded pipe 120 of the connecting portion 110 is screwed with the first male thread section 111 of the joint body 10 and the external thread 22 of the first leakage stop ring 20.

Therefore, the first leakage-stopping ring 20 is elastically compressible and deformable, and the diameter of the first leakage-stopping ring is larger than that of the first male thread section 111 of the joint body 10, when the inner thread pipe 120 of the water pipe 100 is simultaneously screwed with the first male thread section 111 of the joint body 10 and the outer thread 22 of the first leakage-stopping ring 20, the first leakage-stopping ring 20 of the joint body 10 is pressed by the inner thread pipe 120 of the water pipe 100, so that the leakage-stopping effect can be achieved.

Referring to fig. 3 and 4 again, fig. 3 is a sectional view of a second embodiment of the present invention, and fig. 4 is a sectional view of a water pipe assembly according to the second embodiment of the present invention. The invention discloses a leakage-proof joint which is connected with a water pipe 100a, the leakage-proof joint comprises a joint body 10a, a first elastic leakage-proof ring 20 and a second elastic leakage-proof ring 20a, in the embodiment, the joint body 10 is provided with a first connecting part 11a and a second connecting part 12a, the first connecting part 11a and the second connecting part 12a are 90 degrees, the pipe diameter of the first connecting part 11a is smaller than that of the second connecting part 12a, the first connecting part 11a is provided with a first male thread section 111a close to the opening, a second male thread section 112a is arranged close to the first male thread section 111a, the first male thread section 111a is provided with a concave neck 113a, the circular diameter of the first male thread section 111a is larger than that of the first connecting part 11a of the joint body 10a, the circular diameter of the second male thread section 112a is smaller than that of the first male thread section 111a, and a third male thread section 114a is provided with a concave neck 113 a.

The first leakage-stopping ring 20 is made of rubber and has an internal thread 21 and an external thread 22, the internal thread 21 of the first leakage-stopping ring 20 is screwed with the second male thread section 112a of the joint body 10a, and the diameter of the external thread 22 of the first leakage-stopping ring 20 is larger than that of the first thread section 111a of the joint body 10 a.

A second leakage-stopping ring 20a made of rubber and arranged on the concave neck 113a of the joint body 10a, wherein the second leakage-stopping ring 20a has an internal thread 21a and an external thread 22a, the diameter of the second leakage-stopping ring 20a is larger than the diameter of the first connecting part 11a of the joint body 10a, the diameter of the external thread 22 of the first leakage-stopping ring 20a is larger than the diameter of the second leakage-stopping ring 20a, and the internal thread 21a of the second leakage-stopping ring 20a is screwed with the third thread section 114a of the concave neck 113 a.

The water pipe 100a has a connection portion 110a at an end thereof adjacent to the joint body 10a, the connection portion 110a is provided with an internal threaded pipe 120a, and the internal threaded pipe 120a of the connection portion 110a is screwed with the first male thread section 111a of the joint body 10a, the external thread 22a of the second leakage stop ring 20a and the external thread 22 of the first leakage stop ring 20.

Accordingly, when the internal thread 120a of the water pipe 100a is screwed with the first male thread section 111a of the joint body 10a and screwed with the

external threads

22, 22a of the first and second leakage stop rings 20a, since the second leakage stop ring 20a has elasticity and has a circular diameter larger than the first male thread section 111a of the joint body 10a, the leakage prevention effect is obtained when the internal thread 120a of the water pipe 100a is pressed and deformed, and the circular diameter of the first leakage stop ring 20 is larger than the circular diameter of the second leakage stop ring 20a, the water pipe 100a is pressed more tightly, so that the internal thread 120a thereof is screwed with the first male thread section 111a of the joint body 10a, and the first and second

leakage stop rings

20, 20a are pressed and deformed by the internal thread 120a of the water pipe 100a, thereby providing the leakage prevention effect between the water pipe 100a and the joint body 10a in a double layers.

Referring to fig. 5 and 6 again, fig. 5 is a sectional view of a third embodiment of the present invention, and fig. 6 is a sectional view of a water pipe assembly according to the third embodiment of the present invention. The invention discloses a leakage-proof joint, which is connected with a water pipe 100b, and comprises a joint body 10b and an elastic leakage-proof ring 20b, wherein in the embodiment, the joint body 10b is provided with a first connecting part 11b and a second connecting part 12b, the first connecting part 11b and the second connecting part 12b are 90 degrees, the circular diameter of the first connecting part 11b is gradually reduced towards the opening direction thereof and has a taper, a first male thread section 111b is arranged at the position of the first connecting part 11b close to the opening thereof, and the first connecting part 11b is provided with a concave neck 113b.

The leak-stopping ring 20b is made of rubber and has an external thread 22b, and the circular diameter C of the external thread 22b of the leak-stopping ring 20b is larger than the circular diameter D of the first male thread section 111b of the joint body 10 b.

The end of the water pipe 100b adjacent to the joint body 10b is a connecting portion 110b, the connecting portion 110b is provided with an internal threaded pipe 120b, and the internal threaded pipe 120b of the connecting portion 110b is screwed with the first male threaded section 111b of the joint body 10b and is screwed with the external thread 22b of the leakage stopping ring 20 b.

By the elastic compression deformation of the leak-stopping ring 20b, the internal screw 120b of the water pipe 100b can be compressed and deformed by the internal screw 120b of the water pipe 100b when the water pipe 100b is screwed tightly with the first male thread section 111b of the joint body 10b and with the external thread 22b of the leak-stopping ring 20b, thereby achieving the effect of tight water leakage prevention.

In summary, the first embodiment of the present invention has elasticity, when the inner screw tube 120 of the water pipe 100 is screwed with the first male screw thread section 111 of the joint body 10, the first external thread 22 of the first leak-stopping ring 20 can be screwed with the inner screw tube 120 of the water pipe 100, since the diameter of the first external thread 22 of the first leak-stopping ring 20 is slightly larger than the outer diameter of the first male screw thread section 111 of the joint body 10, the first leak-stopping ring 20 can be deformed by the inner screw tube 120 of the water pipe 100, so as to achieve the leak-stopping effect, and the joint body 10 and the first leak-stopping ring 20 of the present invention have simple structure and easy assembly, and can be quickly screwed with the inner screw tube 120 of the water pipe 100, so as to have substantial industrial applicability, and accordingly, a patent application is issued by the national property office of patent normal.

The above-described embodiments are merely illustrative of the principles, features and effects of the present invention, and are not intended to limit the scope of the invention, which can be modified and varied by those skilled in the art without departing from the spirit and scope of the invention. Any equivalent changes and modifications made by the present disclosure should be covered by the present application.

Claims

1. A leak-proof joint, which is connected with a water pipe, is characterized in that the leak-proof joint comprises:

the connector comprises a connector body, a first connecting part and a second connecting part, wherein the connector body is provided with a first male thread section close to an opening of the first connecting part, and the circular diameter of the first male thread section is larger than that of the first connecting part;

the elastic first leakage-stopping ring is sleeved on the first connecting part and provided with an external thread, and the diameter of the external thread of the first leakage-stopping ring is larger than that of the first male thread section of the joint body;

the water pipe is provided with a connecting part which is provided with an inner screwed pipe, and the inner thread of the connecting part is screwed with the first male thread section of the first connecting part and the outer thread of the first leakage-stopping ring.

2. The leak-resistant joint as recited in claim 1, wherein the first engagement portion has a second male thread segment adjacent the first male thread segment, the first leak-stop ring has an internal thread, and the internal thread of the first leak-stop ring is threaded with the second male thread segment of the first engagement portion.

3. The leak-proof connector of claim 2 wherein the first male threaded section has a female neck configured with a second leak-proof ring having an external thread, the second leak-proof ring having a smaller diameter than the first leak-proof ring, the internal threaded tube of the water pipe being threaded with the external thread of the second leak-proof ring.

4. The leak-resistant fitting of claim 3 wherein the female neck is provided with a third threaded section and the second leak-stop ring is provided with an internal thread, the internal thread of the second leak-stop ring being threaded with the third threaded section of the female neck.

5. The leak-resistant joint as recited in claim 1, wherein the first leak-stop ring is made of a rubber material.

6. The leak-proof joint as defined in claim 1, wherein the joint body further comprises a second connecting portion, the first connecting portion and the second connecting portion being at 90 ° to each other.

7. The leak-proof joint of claim 6 wherein the first joint has a smaller tube diameter than the second joint.

8. A leak resistant fitting for engagement with a water pipe, comprising:

a joint body, the joint body has a first connection part, the first connection part has a taper with a gradually reduced diameter towards the opening direction, the first connection part is provided with a first male thread section near the opening, the first connection part is provided with a concave neck;

an elastic leakage-stopping ring, which is installed on the concave neck and has an external thread, the diameter of the external thread of the leakage-stopping ring is larger than that of the first male thread section;

the water pipe is provided with a connecting part which is provided with an inner screw pipe, and the inner screw pipe of the connecting part is screwed with the first male thread section of the first connecting part and the outer thread of the leakage stopping ring.

9. The leak-resistant joint as recited in claim 8, wherein the leak-stopping ring is made of rubber.

10. The leak-proof joint as defined in claim 8, wherein the joint body further comprises a second connecting portion, the first connecting portion and the second connecting portion being at 90 ° to each other.