CN2658524Y - Pipe line sealed connecting piece - Google Patents
Pipe line sealed connecting piece Download PDFInfo
- Publication number
- CN2658524Y CN2658524Y CN 200320117127 CN200320117127U CN2658524Y CN 2658524 Y CN2658524 Y CN 2658524Y CN 200320117127 CN200320117127 CN 200320117127 CN 200320117127 U CN200320117127 U CN 200320117127U CN 2658524 Y CN2658524 Y CN 2658524Y
- Authority
- CN
- China
- Prior art keywords
- tubular member
- middle tubular
- pipeline
- fittings body
- locking nut
- Prior art date
- 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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- Joints With Pressure Members (AREA)
Abstract
The utility model relates to a pipeline seal coupling device composed of a connector body, a middle tubular member, a clamping ring and a locking nut, and is characterized in that one side of the middle tubular member is an annular truncated cone and the other side is columniform. An outer surface at the columniform side of the middle tubular member is coordinately sealed with the inner surface of the pipeline. The connector body is provided with an external thread. The connector inside is provided with a step. The side surface at the truncated cone side of the middle tubular member is coordinately sealed with the step inside the connector body. An outer surface at a joint location of the pipeline and the middle tubular member is covered with the clamping ring. One side of the clamping ring is propped on the truncated cone side of the middle tubular member and the other side is matched with the locking nut. The locking nut which is covered on the pipeline, tenses the clamping ring, closely matches the middle tubular member and the connector body is connected with the external thread on the connector body. The utility model enhances the strength of the coupling device and the seal effect under the synergistic actions of various members.
Description
Technical field
The utility model relates to a kind of coupling that a kind of fluid line is used, especially a kind of line seal coupling that connects with joint.
Background technique
At present, a kind of pipe pipeline coupling of selling on the market, links such as stuffing box gland, seal ring, nut carry out fitted seal, because the variation of environment is expanded with heat and contract with cold, cause leakage.
Summary of the invention
The purpose of this utility model is: a kind of line seal coupling is provided, and good sealing effect not only, and increased the intensity of coupling.
The purpose of this utility model is achieved in that a kind of line seal coupling comprises fittings body, middle tubular member, snap ring, locking nut, its special way is: the end frustoconic shape in the form of a ring of middle tubular member, the other end is cylindrical, the outer surface of the cylindrical shape end of middle tubular member and inner surface of pipeline fitted seal; Outside thread is arranged on the fittings body, a step is arranged in the fittings body; The side of the frustoconic shape end of middle tubular member and the step fitted seal in the fittings body, on the outer surface of pipeline and middle tubular member point of attachment, be with a snap ring, the frustoconic shape end of tubular member in the middle of one end of snap ring is resisted against, the other end cooperates with locking nut, and the middle pipe fitting that snap ring can be tightened up, makes that is enclosed within on the pipeline connects with outside thread on the fittings body with the close-fitting locking nut of fittings body.
The cylindrical shape end and the pipeline interference fit seal of middle tubular member.
The cylindrical shape end of middle tubular member has outside thread, with the screw-internal thread fit sealing of pipeline.
The outer surface Morse's taper 2-5 of middle tubular member is with the pipeline fitted seal.
Line seal coupling of the present utility model, middle tubular member and pipeline fitted seal, the frustoconic shape end face of middle tubular member and the step fitted seal in the fittings body, locking nut is with snap ring locking pipe and middle tubular member in addition, and locking nut is with fittings body and middle tubular member fluid-tight engagement simultaneously.So the utility model good sealing effect, the each several part synergy is so increased the intensity of coupling.
Description of drawings
Fig. 1 is the main sectional view of the utility model line seal coupling.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
A kind of line seal coupling comprises fittings body 1, middle tubular member 2, snap ring 3, locking nut 4, the one end frustoconic shape 21 in the form of a ring of middle tubular member 2, the other end cylindrical 22, cylindrical shape end 22 has outside thread 23, the outer surface and the pipeline 5 internal surface interference fit seal of the cylindrical shape end 22 of middle tubular member 2, also can be cylindrical shape end 22 outside thread 23 with have pipeline 5 fitted seal of internal thread, cylindrical shape end 22 outer surface Morse's taper 3-5 and pipeline fitted seal; Outside thread 11 is arranged on the fittings body 1, a step 12 is arranged in the fittings body 1; Step 12 fitted seal in the side of the frustoconic shape end 21 of middle tubular member 2 and the fittings body 1, on the outer surface of pipeline 5 and middle tubular member 2 points of attachment, one snap ring 3 is arranged, one end of snap ring 3 is against the frustoconic shape end 21 of middle tubular member 2, the other end cooperates with locking nut 4, be enclosed within snap ring 3 can be tightened up on the pipeline 5, pipe fitting 2 connects with outside thread 11 on the fittings body 1 with fittings body 1 close-fitting locking nut 4 in the middle of making, when locking nut 4 screws at the outside thread 11 with fittings body 1, on the one hand snap ring 3 is tightened up, tubular member 2 closely cooperates with fittings body 1 in the middle of making by snap ring 3 on the other hand.The material of middle tubular member, snap ring, locking nut is the PVC plastics; The material of middle tubular member, snap ring, locking nut is copper, aluminum alloy also.
Claims (4)
1, a kind of line seal coupling, comprise fittings body, middle tubular member, snap ring, locking nut, it is characterized in that: the end frustoconic shape in the form of a ring of middle tubular member, the other end is cylindrical, the outer surface of the cylindrical shape end of middle tubular member and inner surface of pipeline fitted seal; Outside thread is arranged on the fittings body, a step is arranged in the fittings body; The side of the frustoconic shape end of middle tubular member and the step fitted seal in the fittings body, on the outer surface of pipeline and middle tubular member point of attachment, be with a snap ring, the frustoconic shape end of tubular member in the middle of one end of snap ring is resisted against, the other end cooperates with locking nut, and the middle pipe fitting that snap ring can be tightened up, makes that is enclosed within on the pipeline connects with outside thread on the fittings body with the close-fitting locking nut of fittings body.
2, line seal coupling according to claim 1 is characterized in that: the cylindrical shape end of middle tubular member and pipeline interference fit seal.
3, line seal coupling according to claim 1 is characterized in that: the cylindrical shape end of middle tubular member has outside thread, with the screw-internal thread fit sealing of pipeline.
4, line seal coupling according to claim 1 is characterized in that: the outer surface Morse's taper 2-5 of middle tubular member, and with the pipeline fitted seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320117127 CN2658524Y (en) | 2003-10-17 | 2003-10-17 | Pipe line sealed connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320117127 CN2658524Y (en) | 2003-10-17 | 2003-10-17 | Pipe line sealed connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2658524Y true CN2658524Y (en) | 2004-11-24 |
Family
ID=34346558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320117127 Expired - Fee Related CN2658524Y (en) | 2003-10-17 | 2003-10-17 | Pipe line sealed connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2658524Y (en) |
-
2003
- 2003-10-17 CN CN 200320117127 patent/CN2658524Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |