CN215294083U

CN215294083U - Insert type water pipe joint capable of preventing water leakage

Info

Publication number: CN215294083U
Application number: CN202121380391.6U
Authority: CN
Inventors: 孙斌; 方根震
Original assignee: Zhejiang Fuhao Pipeline Technology Co ltd
Current assignee: Zhejiang Fuhao Pipeline Technology Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-12-24
Anticipated expiration: 2031-06-22

Abstract

A leak-proof insert type water pipe joint comprises an insert and a plastic pipe fitting connected with the insert in an injection molding manner, wherein the insert is respectively provided with an annular groove embedded with the plastic pipe fitting and a radially raised water retaining end face; the groove wall of the annular groove is provided with a leakage-proof groove with the groove opening direction vertical to the annular groove; the water-retaining end face is provided with a groove for embedding the plastic pipe fitting. The utility model discloses a leak protection groove structure, leak protection groove set up perpendicularly on a plurality of cell walls on the annular groove, have strengthened axial and radial sealing performance between inserts and the plastics pipe fitting through the inslot groove structure.

Description

Insert type water pipe joint capable of preventing water leakage

Technical Field

The utility model relates to a connect, especially indicate to relate to an inserts formula water pipe head of leak protection water.

Background

At present, the technical structure that the insert and the plastic are connected in an injection molding mode is mostly adopted for the water pipe connector, and the problem of water seepage at the connection position of the insert and the plastic often occurs along with the use of the insert type water pipe connector connected by the plastic. The water seepage often causes the whole water pipe joint to be scrapped and needs to be replaced integrally, the maintenance cost is high, and in order to solve the problems, how to improve the sealing performance of injection molding connection between the insert and the plastic is a research object of all technical personnel in the field.

The prior invention with patent number 200710069682.1 is named as: the invention relates to a water pipe joint, which belongs to the Chinese patent. The invention discloses a water pipe joint, which comprises a joint body and a tubular metal insert, wherein an internal channel which can be communicated with a pipe fitting is arranged in the joint body, the metal insert is embedded in the internal channel, an internal thread is arranged in the metal insert, an annular groove for embedding the metal insert is formed in the internal channel of the joint body, an annular stop block is arranged at the front end of the annular groove, the metal insert is embedded and fixed in the annular groove, and a step surface is formed at the adjacent position of the metal insert and the annular stop block. Although the annular stop block structure adopted by the technology can stop water flow from seeping out from the joint of the inner metal insert and the water pipe connector, the annular stop block structure only plays a role of water retaining, water can leak when a gap appears between the connector and the insert, and how to further improve the technical performance of water leakage prevention is the object of research of technicians in the field.

SUMMERY OF THE UTILITY MODEL

The utility model provides an inserte formula water pipe head of leak protection water that sealing performance is stronger between inserts and plastics.

In order to solve the technical problem, the utility model discloses technical scheme as follows: a leak-proof insert type water pipe joint comprises an insert and a plastic pipe fitting connected with the insert in an injection molding mode, wherein the insert is provided with an external thread extending out of the plastic pipe fitting, and the insert is respectively provided with an annular groove embedded with the plastic pipe fitting and a radially raised water retaining end face; the groove wall of the annular groove is provided with a leakage-proof groove with the groove opening direction vertical to the groove wall of the annular groove; and the water retaining end face is provided with a groove for embedding the plastic pipe fitting. The technical scheme adopts the injection molding connection of the annular groove and the water retaining end face to form a plastic pipe fitting; the wall of the annular groove is vertical to the leakage-proof groove, so that the sealing performance between the leakage-proof groove and the plastic pipe fitting is improved; after the plastic pipe fitting is connected with the water retaining end face in an injection molding mode, the water retaining end face is provided with a groove for embedding the plastic pipe fitting, the axial sealing performance between the groove and the plastic pipe fitting is improved, and water leakage is prevented. The water leakage prevention performance of the insert type water pipe joint is improved through the double injection molding connection of the leakage prevention groove and the groove on the water retaining end face.

The end part of the insert is provided with at least 6 bumps; the lugs are uniformly distributed in the radial direction of the insert and are connected with the plastic pipe fitting in an injection molding mode. The lug structure is connected with the plastics pipe fitting is moulded plastics and has effectively prevented to appear radially rotatory between inserts and the plastics pipe fitting, avoids the workman to loosen and take off the problem of leaking that rotary joint leads to when the installation water pipe connects.

The water retaining end face comprises a groove, a first attaching end face attached to the plastic pipe fitting in an injection molding mode and a second attaching end face attached to the plastic pipe fitting in an injection molding mode. The recess, first laminating terminal surface, the joint plastics pipe fitting is moulded plastics jointly to the second laminating terminal surface, has realized from this that the melting plastics on the relative first laminating terminal surface of melting plastics in the recess, the second laminating terminal surface produce inside extrusion force after the cooling, prevents the problem of leaking that plastics on first laminating terminal surface, the second laminating terminal surface arouse because of the expend with heat and contract with cold that use from this, and the two laminating terminal surface structures of on the other hand have further increased the firmness of being connected between inserts and the plastics pipe fitting.

The utility model discloses a leak protection groove structure, leak protection groove set up perpendicularly on a plurality of cell walls on the annular groove, have strengthened axial and radial sealing performance between inserts and the plastics pipe fitting through the inslot groove structure.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

fig. 1 is a schematic sectional view of a water leakage preventing insert type water pipe joint of the present invention;

FIG. 2 is a schematic view of a three-dimensional structure of the insert of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 1.

Detailed description of the preferred embodiments

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-3, an anti-leaking insert type water pipe joint includes an insert 1 and a plastic pipe 22 connected to the insert 1 by injection molding, wherein the insert 1 is provided with an annular groove 4 for embedding the plastic pipe 22 and a water-retaining end face 2. The groove wall of the annular groove 4 is provided with a leakage-proof groove 3 with the groove opening direction vertical to the groove wall of the annular groove 4. The water-retaining end face 2 is provided with a groove 5 for embedding the plastic pipe 22. As further added connecting surfaces, there are a first attaching end surface 9 attached to the plastic pipe 22 by injection molding and a second attaching end surface 14 attached to the plastic pipe 22 by injection molding. The utility model discloses a leak protection groove 3 in adopting annular groove 4 forms the grooved technological structure improvement inserts formula water pipe head's leak protection water performance in the groove.

The insert 1 is preferably provided with an external thread 11 extending out of the plastic pipe 22 as a structure, the external thread 11 and the annular groove 4 are respectively arranged on the water retaining end face 2 to form a symmetrical structure, and other pipelines are connected through the external thread 11.

Preferably, the insert 1 is provided with projections 10 at the ends, the number of the projections 10 being at least 6, in order to prevent radial rotation of the insert 1 relative to the plastic tube 22.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides an inserts formula water pipe head of leak protection water, includes that inserts (1) and inserts (1) mould plastics plastic pipe spare (22) of connecting, inserts (1) are equipped with external screw thread (11) that stretch out plastic pipe spare (22), its characterized in that: the insert (1) is respectively provided with an annular groove (4) for embedding the plastic pipe (22) and a water-retaining end face (2) which is protruded in the radial direction; the groove wall of the annular groove (4) is provided with a leakage-proof groove (3) with the groove opening direction vertical to the groove wall of the annular groove (4); and a groove (5) for embedding the plastic pipe fitting (22) is arranged on the water retaining end face (2).

2. A leak-proof insert type water pipe joint as set forth in claim 1, characterized in that: the end part of the insert (1) is provided with lugs (10), and the number of the lugs (10) is at least 6; the lugs (10) are uniformly distributed in the radial direction of the insert (1) and are connected with the plastic pipe fitting (22) in an injection molding mode.

3. A leak-proof insert type water pipe joint as set forth in claim 1, characterized in that: the water retaining end face (2) comprises a groove (5), a first attaching end face (9) attached to the plastic pipe fitting (22) in an injection molding mode and a second attaching end face (14) attached to the plastic pipe fitting (22) in an injection molding mode.