The present invention relates to a pipe joint structure, especially a pipe joint structure with the excellent fixation force.
The conventional pipe joint structures nowadays are mostly those shown in
Nevertheless, the conventional pipe joint structure mentioned above still has the following problems in the actual application: that the pipe joint (80) merely using the break gear teeth (832) of the snap ring (83) to slightly embed the brass pipe (90) has the drawback of the weaker fixation force, that leads the brass pipe (90) separated from the pipe joint (80) under the pull force (referring to
Therefore, the development and improvement to solve the above shortages of the conventional pipe joint structure is an object for the related industry to put effort on. In view of this, the inventor has been motivated and obtained the present invention by years of designing experience, multi discussion, testing sample, and repeatedly amendment for improvement.
The technical problem needs to be solved by the present invention is that the pipe joint structure merely using the break gear teeth of the snap ring to slightly embed the brass pipe has the drawback of the weaker fixation force.
Technical feature of the present invention for solving the above problem is to provide a pipe joint structure, comprising: a joint body, an O-ring seal piece, an auxiliary retaining ring, a lock nut, and a connecting base, wherein the joint body has a first opening and a second opening connecting and transmitting through with each other, a cam ring is configured in the first opening, a first thread section is configured on the outer margin of the joint body corresponding to the first opening, the auxiliary retaining ring has a first end, a second end, an inner ring portion, and an outer ring portion, a function inclined plane is formed by cone shape expansion in the middle part of the inner ring portion toward the first end, a second thread section and a stepped blocking portion are configured in the inner margin of the lock nut so that a one end of the nut formed with the stepped blocking portion configures a shrinkage section, the connecting base is a hollow ring body with a one end configured an enlarged lug so that the enlarged lug is for pressing the connecting base inward, another end of the connecting base has a plurality of spring plates separated from each other with space between and stretched out, metal claws and undercuts are respectively configured inside and outside of the spring plates, and a gradually shrinkage inclined portion is formed on the outer margin of the undercut toward the side of the spring plates. Accordingly, a pipe joint structure is obtained.
Comparing the effectiveness of the present invention to the prior arts, the present invention provides a pipe joint structure, which uses the lock nut to be tightly locked, by using the connecting base to push the auxiliary retaining rings forward closely to the O-ring seal piece so that the O-ring seal piece will be pressed by the auxiliary retaining ring for more assured that the brass pipe is tightened up, and using the contact of the function inclined plane and the inclined portion to active the spring plates shrinking inwardly so that the metal claws will embed the brass pipe more, which can make the brass pipe to obtain more positions fixing in the pipe joint. Such that there will be no separation happened between the brass pipe and the pipe joint under the pull force and avoid the scratches on the brass pipe that causes leakage, where the scratches are caused by the metal claws scratching the brass pipe.
In order for the examiner to have further acknowledge and understandings to the object, characteristic, and effectiveness of the present invention, please refer to the drawings for the embodiments. The detailed description of the present invention are as followed:
Firstly, please sequentially refer to
Please refer to
In the actual application, the brass pipe (60) transmits from the inner ring portion of the connecting (50) to the first opening (11) of the joint body (10), so that the metal claws (53) embed the brass pipe (60) (please referring to
The present invention provides a joint pipe structure, wherein the first opening (10) and the second opening of the joint body (10) is transmit in a straight line way (please referring to
The present invention provides a joint pipe structure, wherein the first opening (10) and the second opening of the joint body (10) is transmit in a corner line way (please referring to
The present invention provides a pipe joint structure, wherein the second opening (10) of the joint body (10) is also installed with the O-ring seal piece (20), the auxiliary retaining ring (30), the lock nut (40), and the connecting base (50), and a pair of pipe joint structure is obtained by the configuration of those (please referring to
The present invention provides a pipe joint structure, wherein the combination of the O-ring seal piece (20), the auxiliary retaining ring (30), the lock nut (40), the connecting base (50) is via an adapter (70) connecting to the joint body (10) (please referring to
The present invention provides a pipe joint structure, wherein the metal claws (53) combine with the spring plates (52) by stretching to cover, and the metal claws (53) is slightly protruding to the inner margin of the spring plates.
As above, the present invention has achieved a breakthrough of structure design and improvement as well as obtained the novelty and inventive steps. The present invention has not been published and thus has novelty under the patent articles. Therefore, the present invention has been submitted as a utility model application according to the patent article. Earnestly please the examiner of the patent office to examine and approve the present invention.
The above is the detailed description of the present invention. However, the above is merely the preferred embodiment of the present invention and cannot be the limitation to the implement scope of the present invention, which means the variation and modification according the present invention may still fall into the scope of the invention.
Number | Name | Date | Kind |
---|---|---|---|
2466526 | Wolfram | Apr 1949 | A |
4471978 | Kramer | Sep 1984 | A |
5024468 | Burge | Jun 1991 | A |
5328215 | Grenier | Jul 1994 | A |
5496073 | Grenier | Mar 1996 | A |
5553895 | Karl | Sep 1996 | A |
5580100 | Umezawa | Dec 1996 | A |
5685575 | Allread | Nov 1997 | A |
5934709 | Morrison | Aug 1999 | A |
6305721 | Heinrichs | Oct 2001 | B1 |
7543858 | Wang | Jun 2009 | B1 |
20030067165 | Muto | Apr 2003 | A1 |
20040012201 | Bartholoma | Jan 2004 | A1 |
20040108712 | Liang | Jun 2004 | A1 |