CN212480459U - Improved structure of pipe joint - Google Patents
Improved structure of pipe joint Download PDFInfo
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- CN212480459U CN212480459U CN202021278358.8U CN202021278358U CN212480459U CN 212480459 U CN212480459 U CN 212480459U CN 202021278358 U CN202021278358 U CN 202021278358U CN 212480459 U CN212480459 U CN 212480459U
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- joint
- pipe
- hole
- connecting section
- joint body
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Abstract
The utility model provides an improvement structure of external screw thread coupling, its characterized in that is including the joint body, the inner tube, it is provided with the perforation to connect the internal perforation that is provided with, the pore diameter that fenestrate diameter ratio tubulose connects is little, make and connect internal perforation and tubulose tube hole that connects form the locking lateral wall between, the inner tube includes the anterior segment linkage segment, the back end linkage segment, the perforation is passed to the anterior segment linkage segment, spacing flange and back spacing flange before being provided with on the anterior segment linkage segment, be provided with the ring shape recess more than the round on the fenestrate inside wall, be provided with the sealing washer in the ring shape recess, the sealed cross-under of anterior segment linkage segment is on the sealing washer, be provided with. Compared with the prior art, the utility model has the advantages that the joint rotation is not hindered by the connected soft water pipe, and the joint can be smoothly sealed and screwed in the internal thread sleeve.
Description
The technical field is as follows:
the utility model relates to a connection technology of pipe.
Background art:
the existing external thread pipe joint, such as the pipe joint on the water spraying gun, including the polygonal joint body, connect to the tubular plug with external screw thread of the front end of the polygonal joint body, connect to the intubate of the rear end of the polygonal joint body, the tubular plug communicates with intubate, the intubate is inserted and connected on the hose stem and under the fixed ring cooperation on the hose in interference fit, fix together with the hose, this kind of external thread pipe joint, because the polygonal joint body, tubular plug with external screw thread, intubate are connected together fixedly, in this way, after connecting fixedly with the hose, hindered by the hose, this kind of pipe joint is rotated very inconveniently, therefore, can only pass and rotate the water spraying gun, connect the female thread sleeve form joint with seal ring on the water spraying gun to the external thread pipe joint, even so, because of the bulk of the water gun, and the appearance is non-cylindrical shape, the water gun is inconvenient to rotate, and cannot rotate along the axis continuously, so that the water gun can be connected with the external threaded pipe joint smoothly.
The invention content is as follows:
the invention aims to provide an improved structure of a pipe joint, wherein the rotation of the pipe joint is not hindered by a connected flexible water pipe, and the pipe joint can be smoothly screwed in an internal thread sleeve in a sealing way.
The utility model is realized by comprising a joint body with one end connected with a tubular joint, an inner tube which is rotatablely connected in the joint body in a penetrating way, the outer side wall of the tubular joint is provided with an external thread, a perforation is arranged in the joint body, the diameter of the perforation is smaller than that of the tube hole of the tubular joint, a locking side wall is formed between the perforation in the joint body and the tube hole of the tubular joint, the inner tube comprises a front section connecting section, the back end linkage segment of being connected with the hose, the anterior segment linkage segment passes the perforation, it is outer with the outer preceding spacing flange that is provided with of back port respectively to correspond fenestrate preceding port on the anterior segment linkage segment, preceding spacing flange and back spacing flange are spacing with the anterior segment linkage segment in the perforation, be provided with the annular groove more than the round on the fenestrate inside wall, be provided with the sealing washer in the annular groove, the sealed cross-under of anterior segment linkage segment is on the sealing washer, be provided with the several ball between preceding spacing flange and locking lateral wall. During manufacturing, the front section connecting section of the inner pipe with the rear limiting flange machined on the front section connecting section is inserted into the through hole from the outer insertion of the rear port of the through hole, the rear limiting flange is abutted against the rear port of the through hole, the front end part of the front section connecting section protrudes out of the front port of the through hole, then a plurality of balls are distributed between the front end part of the front section connecting section and the pipe hole wall of the tubular joint, and then the front end part of the front section connecting section is flanged to form the front limiting flange, so that the balls are limited between the front limiting flange and the stop side wall.
Here, the side of the front limiting flange facing the retaining side wall or on the retaining side wall is provided with an annular groove, so that the balls can only roll in the annular groove.
When the joint body is rotated, the inner pipe fixedly connected with the soft water pipe cannot rotate along with the rotation of the joint body under the obstruction of the soft water pipe, so that the joint body smoothly rotates along the axis to drive the tubular joint to be screwed into the sleeve-shaped interface with the internal thread until the tubular joint is in place and is pressed on the sealing ring in the sleeve-shaped interface, and the end part of the tubular joint is tightly abutted against the sealing ring preset in the sleeve-shaped interface to form sealing connection. The side of the front limit flange facing the through hole or the stop side wall is provided with the annular groove and the plurality of balls are arranged between the annular groove and the stop side wall, so when the sleeve-shaped interface end of the water gun is pressed on the front limit flange, the plurality of balls are arranged between the annular groove and the stop side wall, and the rolling friction force of the balls is very small, therefore, even if the sleeve-shaped interface end of the water gun is tightly pressed on the front limit flange, the smooth rotation of the joint body relative to the inner pipe is not influenced.
Since the inner pipe is not rotated by the rotation of the coupling body, the coupling operation of the male screw coupling is not hindered by the flexible water pipe to which the inner pipe is coupled during the screwing process, and thus the flexible water pipe does not substantially affect the coupling operation. After the connection is completed, the inner pipe and the joint body are connected in a sealing mode through the sealing ring arranged in the through hole, so that the inner pipe and the joint body can rotate relatively, and therefore in the using process, the water gun can not be hindered by the water hose no matter what posture the water gun is used, and therefore the water gun is convenient to use.
Compared with the prior art, the utility model has the advantages that the joint rotation is not hindered by the connected soft water pipe, and the joint can be smoothly sealed and screwed in the internal thread sleeve.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings and examples:
as shown in figure 1, the utility model comprises a joint body 2 with one end connected with a tubular joint 1, an inner pipe 3 rotatably connected in the joint body 2 in a penetrating way, the outer side wall of the tubular joint 1 is provided with an external thread 4, a perforation 5 is arranged in the joint body 2, the diameter of the perforation 5 is smaller than that of a pipe hole 6 of the tubular joint 1, a stop side wall 7 is formed between the perforation 5 in the joint body 2 and the pipe hole 6 of the tubular joint 1, the inner pipe 3 comprises a front section connecting section 3a and a rear section connecting section 3b connected with a soft water pipe 8, the front section connecting section 3a passes through the perforation 5, a front limit flange 3c and a rear limit flange 3d are respectively arranged on the front section connecting section 3a corresponding to the front port and the rear port of the perforation 5, the front limit flange 3c and the rear limit flange 3d limit the front section connecting section 3a in the perforation 5, more than one circle of annular groove 9 is arranged on the inner, a sealing ring 10 is arranged in the circular groove 9, the front section connecting section 3a is connected to the sealing ring 10 in a sealing and penetrating mode, a circular groove 3c1 is formed in the side face, facing the stopping side wall 7, of the front limiting flange 3c (or on the stopping side wall 7), and balls 12 are fully distributed between the circular groove 3c1 and the stopping side wall 7.
The joint body 2 to which the tubular joint 1 is attached is integrally formed (e.g., integrally formed of an aluminum alloy).
The inner tube 3 including the front section connecting section 3a, the rear section connecting section 3b, the front limit flange 3c and the rear limit flange 3d is integrally formed (e.g., punched) by a metal tube (e.g., a copper tube).
The joint body 2 is in a cap shape, the rear section connecting section 3b is located in a cap opening 2a of the joint body 2 in the cap shape, and therefore the fixing ring 11 for fixing the water hose 8 on the rear section connecting section 3b is shielded by the cap opening 2a through the rear section connecting section 3b expanded in a matching mode, the fixing ring 11 is prevented from being damaged to influence the connection firmness, and meanwhile the manufacturing cost of the joint body 2 is saved.
The body 2 is polygonal in shape to facilitate rotation by a user.
Claims (5)
1. An improved structure of a pipe joint is characterized by comprising a joint body, an inner pipe and an outer pipe, wherein one end of the joint body is connected with a tubular joint, the inner pipe is rotatably connected in the joint body in a penetrating way, the outer side wall of the tubular joint is provided with external threads, a through hole is arranged in the joint body, the diameter of the through hole is smaller than that of a pipe hole of the tubular joint, a locking side wall is formed between the through hole in the joint body and the pipe hole of the tubular joint, the inner pipe comprises a front section connecting section and a rear section connecting section connected with a flexible water pipe, the front section connecting section penetrates through the through hole, a front limiting flange and a rear limiting flange are respectively arranged outside a front port and a rear port corresponding to the through hole on the front section connecting section, the front limiting flange and the rear limiting flange limit the front section connecting section in the through hole, more than one circle of annular, a plurality of balls are arranged between the front limit flange and the stop side wall.
2. The improvement of claim 1, wherein the side of the front retainer flange facing the retainer side wall or the retainer side wall is provided with an annular groove.
3. The improved structure of pipe joint according to claim 1 or 2, wherein the inner pipe including the front connecting section, the rear connecting section, the front limit flange and the rear limit flange is integrally formed of a metal pipe.
4. The improvement of a pipe joint according to claim 1 or 2, wherein the joint body to which the tubular joint is attached is integrally formed.
5. The improvement of claim 3, wherein the body to which the tubular fitting is attached is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021278358.8U CN212480459U (en) | 2020-07-03 | 2020-07-03 | Improved structure of pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021278358.8U CN212480459U (en) | 2020-07-03 | 2020-07-03 | Improved structure of pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212480459U true CN212480459U (en) | 2021-02-05 |
Family
ID=74456692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021278358.8U Active CN212480459U (en) | 2020-07-03 | 2020-07-03 | Improved structure of pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212480459U (en) |
-
2020
- 2020-07-03 CN CN202021278358.8U patent/CN212480459U/en active Active
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