CN203248876U - Self-locking pipe joint with flange - Google Patents
Self-locking pipe joint with flange Download PDFInfo
- Publication number
- CN203248876U CN203248876U CN 201320198311 CN201320198311U CN203248876U CN 203248876 U CN203248876 U CN 203248876U CN 201320198311 CN201320198311 CN 201320198311 CN 201320198311 U CN201320198311 U CN 201320198311U CN 203248876 U CN203248876 U CN 203248876U
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- CN
- China
- Prior art keywords
- joint
- bellows
- pipe
- pipe fitting
- locking
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to the technical field of pipeline connectors, in particular to a self-locking pipe joint with a flange. The self-locking pipe joint with the flange comprises a pipe fitting and a bellows, the main part of the pipe fitting is a connector with outer threads, the flange is arranged on the pipe fitting, a sleeve nut which is connected with a connector in a screwing mode is arranged on the bellows, and the grooves of the bellows between the pullover nut and the connector is sleeved with two open washers. According to the self-locking pipe joint with the flange, the coaxiality of the pipe fitting and the bellows is guaranteed to be high due to the fact that a guide pipe is arranged in the pipe fitting, the tapered top end of the pipe fitting is of a horn shape and is engaged with the cutting end head of the bellows as the nut is tightened, the end portion of the bellows is bent backwards to form a horn mouth under the cooperation of the pipe fitting and the open washers, therefore, the sealing between metal workpieces is achieved, special tool is of no need, and the self-locking pipe joint is convenient to install and use.
Description
Technical field
The utility model relates to the pipe joint technical field, and is particularly a kind of flanged from locking pipe joint.
Background technique
Flexibility fuel tube (FGP pipe) system is also referred to as corrugated stainless steel (being called for short CSST).Its predecessor is the inside fuel tube of Japan exploitation, and this pipe network is mixed attached pipe fitting with the bellows of rolling and is used for the combustion gas of central supply station is transported to the use everywhere in a building building or house.This technology-imitation is that the mode of house laying circuit is that fuel gas pipeline is laid in the house, thereby reaches the purpose of decrease installation time and labour cost.
For a long time, use three kinds of pipe fittings in the installation at the scene.The pipe fitting that the first enters this field uses fibre washer to reach sealing purpose, and need not professional tool pipe fitting be pacified and connect.But, with the horn-like metalwork that some manufacturer provides the metalwork sealing means to be compared, the installation of this kind pipe fitting still has higher leak rate.The pipe fitting that the second enters this field at first with the flatten spiral of CSST tube head of a kind of professional tool, is then loaded onto pipe fitting, next uses again another kind of professional tool to fill a trumpet-shaped workpiece at tube head.This product has been eliminated from the market, and reason is that stainless steel is made very hard in the process of spiral and installation loudspeaker spare of flattening.The third pipe fitting that enters this field need not use any professional tool.Just the spiral of tube head has been drawn backward and formed a double horn mouth, thereby realized metal to metal seal.Through practicality after a while, it is found that this design can't satisfy the demand of high sealing.
The model utility content
The purpose of this utility model is to provide a kind of compact structure, easy to operate for the defective of prior art and deficiency.
For achieving the above object, the utility model is by the following technical solutions:
Described in the utility model a kind of flanged from locking pipe joint, comprise pipe fitting and bellows, the main body of pipe fitting is for being with externally threaded joint, and described pipe fitting is provided with flange plate, and the front end of joint is provided with conical head; Bellows is provided with torx nut, and torx nut and joint are spirally connected, and is arranged with two open washers in the bellows groove between torx nut and the joint.
Further, described open washer inboard has the cone shape hole that cooperates with conical head.
Further, be connected with guide pipe in the described joint, an end and the joint of guide pipe are connected, and the other end of guide pipe is located in the bellows.
Further, described joint front end offers shoulder hole, and the internal diameter of shoulder hole cooperates with the external diameter of guide pipe is fixedly installed in the joint end of guide pipe.
Further, described guide pipe and joint can be one-body molded settings.
Further, described flange plate is provided with some attachment holes.
The utility model beneficial effect is: the utility model is by using a guide pipe to guarantee the coaxality of pipe fitting and bellows in body, and along with tightening of nut, the taper top on the pipe fitting is horn-like and cut-out termination interlock bellows; Pipe fitting cooperates with open washer has drawn horn mouth of formation backward with the termination section of bellows, thereby realizes metal to metal seal, need not to re-use special tool, installs and uses more convenient.
Description of drawings
Fig. 1 is whole sectional structure schematic representation of the present utility model;
Fig. 2 is whole side of the present utility model structural representation.
Among the figure:
1, pipe fitting; 2, bellows; 3, torx nut; 4, open washer;
5, guide pipe; 11, joint; 12, conical head; 13, shoulder hole;
14, flange plate; 15, attachment hole; 41, cone shape hole.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
To shown in Figure 2, described in the utility model a kind of flanged from locking pipe joint such as Fig. 1, comprise pipe fitting 1 and bellows 2, the main body of pipe fitting 1 is for being with externally threaded joint 11, and described pipe fitting 1 is provided with flange plate 14, and the front end of joint 11 is provided with conical head 12; Bellows 2 is provided with torx nut 3, and torx nut 3 is spirally connected with joint 11, is arranged with two open washers 4 in bellows 2 grooves between torx nut 3 and the joint 11.The left and right displacement of open washer 4 restriction torx nuts 3, and when torx nut 3 and joint 11 screw, make the port of bellows 2 cooperate docking with conical head 12.
Be connected with guide pipe 5 in the above-mentioned joint 11, an end and the joint 11 of guide pipe 5 are connected, and the other end of guide pipe 5 is located in the bellows 2; The coaxality of guide pipe 5 principal security pipe fittings 1 and bellows 2.
Above-mentioned joint 11 front ends offer shoulder hole 13, and the internal diameter of shoulder hole 13 cooperates an end that makes guide pipe 5 to be fixedly installed in the joint 11 with the external diameter of guide pipe 5; The internal diameter of shoulder hole 13 is greater than the internal diameter of joint 11, prevents that pack into joint 11 of guide pipe 5 is too deep when interior.
Thereby above-mentioned guide pipe 5 and joint 11 can be one-body molded settings reduces assembly process.
It is fixing for the convenient pipe fitting 1 that connects after finishing that above-mentioned flange plate 14 is provided with some attachment holes 15.
Pipe fitting 1 is as follows with the assembly process of bellows 2, at first bellows 2 is cut off along the groove on the periphery, and bellows 2 after loading onto torx nut 3 is packed open washer 4 near in the groove that cuts off mouth into, torx nut 3 is enclosed within on the open washer 4 again; Then guide pipe 5 is packed in the bellows 2 and torx nut 3 screws with joint 11; Along with screwing of torx nut 3 and joint 11, open washer 4 is pushed the cut-out mouth of bellows 2 to conical head 12, it is horn-like that the cut-out mouth of bellows 2 is formed by the impact of conical head 12, and finally form open washer 4, bellows 2 and cut off and mouthful are connected three's tight connection with conical head.
The above only is preferred embodiments of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (6)
- One kind flanged from locking pipe joint, comprise pipe fitting (1) and bellows (2), the main body of pipe fitting (1) is for being with externally threaded joint (11), it is characterized in that: described pipe fitting (1) is provided with flange plate (14), and the front end of joint (11) is provided with conical head (12); Bellows (2) is provided with torx nut (3), and torx nut (3) is spirally connected with joint (11), is arranged with two open washers (4) in bellows (2) groove between torx nut (3) and the joint (11).
- 2. according to claim 1 flanged from locking pipe joint, it is characterized in that: described open washer (4) inboard has the cone shape hole (41) that cooperates with conical head (12).
- 3. according to claim 1 flanged from locking pipe joint, it is characterized in that: be connected with guide pipe (5) in the described joint (11), one end of guide pipe (5) and joint (11) are connected, and the other end of guide pipe (5) is located in the bellows (2).
- 4. according to claim 1 flanged from locking pipe joint, it is characterized in that: described joint (11) front end offers shoulder hole (13), and the internal diameter of shoulder hole (13) cooperates an end that makes guide pipe (5) to be fixedly installed in the joint (11) with the external diameter of guide pipe (5).
- 5. according to claim 3 flanged from locking pipe joint, it is characterized in that: described guide pipe (5) and joint (11) can be one-body molded settings.
- 6. according to claim 1 flanged from locking pipe joint, it is characterized in that: described flange plate (14) is provided with some attachment holes (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320198311 CN203248876U (en) | 2013-04-10 | 2013-04-10 | Self-locking pipe joint with flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320198311 CN203248876U (en) | 2013-04-10 | 2013-04-10 | Self-locking pipe joint with flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248876U true CN203248876U (en) | 2013-10-23 |
Family
ID=49375315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320198311 Expired - Fee Related CN203248876U (en) | 2013-04-10 | 2013-04-10 | Self-locking pipe joint with flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621205A (en) * | 2017-10-30 | 2018-01-23 | 江苏追日汽车同步器有限公司 | A kind of reading type screw hole depth advises device |
-
2013
- 2013-04-10 CN CN 201320198311 patent/CN203248876U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621205A (en) * | 2017-10-30 | 2018-01-23 | 江苏追日汽车同步器有限公司 | A kind of reading type screw hole depth advises device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20190410 |