Coupler

Patent metadata

Field	Value
Publication number	US-2016165818-A1
Application number	US-201414568064-A
Country	US
Kind code	A1
Filing date	Dec 11, 2014
Priority date	Dec 11, 2014
Publication date	Jun 16, 2016
Grant date	—

Abstract

A coupler for connection and assembly of an irrigation system is revealed. The coupler includes a base, a connecting portion and a retaining member. The base is for mounting the connecting portion and the retaining member. The connecting portion is arranged with a first channel and a second channel. The second channel is used to receive an insert that is connected to sprayers or hoses. The coupler features on that the second channel above the retaining member is arranged with a seal ring. While the insert is pressed downward axially, the insert is first against the seal ring so as to prevent water flow from being sprayed out of a gap of the second channel between an inner diameter of the connecting portion and an outer diameter of the insert.

First claim

What is claimed is:

1 . A coupler for connection of an irrigation system and connected to an insert for connection to sprayers or hoses and guiding water flow of the irrigation system, comprising: a base, a connecting portion and a retaining member, wherein the base is for mounting the connecting portion and the retaining member, wherein the connecting portion is disposed with a push portion and a tube while the push portion is fitted over one end of an outer diameter of the tube; an inner diameter of the tube is divided into a first channel and a second channel, wherein the first channel and the second channel are separated by a rib projecting from an inner wall of the tube, wherein the retaining member is arranged between the second channel and the first channel; the retaining member having a flange, a column head, and a third channel, wherein the column head is formed by extending the flange and a diameter of the flange is larger than a diameter of the column head, wherein the flange is just against the rib of the second channel and the third channel is extended from the flange to the column head, wherein the column head is disposed with a plurality of through holes which is radially communicating with the second channel, wherein a circular groove is arranged at a wall of the second channel above the flange of the retaining member and a first seal ring is seated in the circular groove; while the insert is pressing the retaining member downward axially, an outer diameter of a rear end of the insert is first against the first seal ring and continuously against the flange of the retaining member; thus the first seal ring is first against the outer diameter of the rear end of the insert closely.

2 . A coupler for connection of an irrigation system and connected to an insert to connect to sprayers or hoses and guiding water flow of the irrigation system, comprising:
a base, a connecting portion mounting in the base and having a push portion and a tube, wherein the push portion is fitted over one end of an outer diameter of the tube; an inner diameter of the tube is divided into a first channel and a second channel, wherein the first channel and the second channel are separated by a rib projecting from an inner wall of the tube; a circular groove which is arranged at a wall of the second channel and a first seal ring is seated in the circular groove; a retaining member having a flange, a column head, a third channel and a second seal ring, wherein the column head is formed by extending the flange and a diameter of the flange is larger than a diameter of the column head, wherein the flange is just against the rib of the second channel, the second seal ring is arranged at one end of the column head and the third channel is extended from the flange to the column head, wherein the column head is disposed with a plurality of through holes which is radially communicating with the second channel and the retaining member is disposed between the second channel and the first channel; the insert having an assembly portion, a circular toothed portion, a guide tube, and a fourth channel, wherein the assembly portion is extended form the circular toothed portion and further extended form the guide tube, wherein the fourth channel is axially penetrating the assembly portion, the circular toothed portion and the guide tube for guiding the water flow, wherein the first seal ring is seated in the circular groove, which is arranged at a wall of the second channel above the flange of the retaining member; while the insert is pressing the retaining member downward axially, the guide tube of the insert is first against the first seal ring and the in contact with the flange of the retaining member; thereby the first seal ring is fit over an outer diameter of the guide tube closely.

Assignees

• Yuan Mei Corp

Inventors

• Lo Shun-Nan

Classifications

• F16L37/42 Primary

  the valve having an axial bore communicating with lateral apertures · CPC title

• F16L37/12

  using hooks, pawls, or other movable or insertable locking members (F16L37/084 takes precedence) · CPC title

• F16L37/48

  for fastening a pipe on the end of a tap · CPC title

• A01G25/02 Primary

  Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation · CPC title