CN203560626U - Novel pipe joint with double ferrules - Google Patents
Novel pipe joint with double ferrules Download PDFInfo
- Publication number
- CN203560626U CN203560626U CN201320743308.6U CN201320743308U CN203560626U CN 203560626 U CN203560626 U CN 203560626U CN 201320743308 U CN201320743308 U CN 201320743308U CN 203560626 U CN203560626 U CN 203560626U
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- China
- Prior art keywords
- cutting ferrule
- nut
- ferrule
- pipe joint
- angle
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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 - Lifetime
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- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000005520 cutting process Methods 0.000 claims description 61
- 230000000694 effects Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000013036 cure process Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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Abstract
The utility model discloses a novel pipe joint with double ferrules. The novel pipe joint with the double ferrules is composed of a joint body, a nut, the front ferrule and the rear ferrule. The novel pipe joint with the double ferrules is characterized in that the front end of the front ferrule is matched with a horn mouth of the joint body, the front end of the rear ferrule is in surface contact with an inner arc at the rear end of the front ferrule, and the nut is screwed into the joint body, so that an included angle is formed between the oblique plane on the bottom of the nut and the vertical plane at the rear end of the rear ferrule; a pipe is inserted into the joint body from the tail portion of the nut and abuts against an inner step of the joint body, the nut propels the front ferrule to enable the front end of the front ferrule to contract under the action of the horn mouth of the joint body when the nut is screwed and tightened, then the front end of the front ferrule is pressed into the pipe, and as a result primary sealing and tightening are achieved; along with the continuous tightening of the nut, stress on the rear ferrule is increased, an arc at the front end of the rear ferrule and the inner arc at the rear end of the front ferrule are squeezed to contract, the included angle between the oblique plane on the bottom of the nut and the vertical plane at the rear end of the rear ferrule disappears gradually, the front end of the rear ferrule is better clamped into a pipe after lever acting force is generated, and secondary sealing and tightening are achieved; the connecting strength and sealing performance are more reliable.
Description
Technical field
The utility model relates to connection between pipe, withstand voltage, sealing, design and manufacture, is widely used in the pipelines such as industry, machinery, engineering equipment.
Background technique
At present, the metallic conduit Placement of extensive use has the pipe joints such as thread type, welding type, flared type, FERRULETYPE, according to different working condition requirements and condition, adopts different Connecting format and joint.But in industrialization, intensive today that has development, due to advantages such as Bite type fittings have connection, good seal, and fitting operation is convenient and swift, its application area and usage quantity constantly increase, and also have higher requirement.If original double card sleeve type pipe joint is to the having relatively high expectations of pipe precision and hardness, the unfavorable factor such as mounting technique is strong, and required mounting torque is larger, has affected wider popularization and application.
Summary of the invention
Novel double card sleeve type pipe joint has changed geometrical shape and a working principle for former front cutting ferrule and rear cutting ferrule, and join strength and sealability are more reliable, and mounting torque is little, is specially adapted in the connection of the stainless steel pipeline that hardness and toughness are higher.
The technical solution of the utility model is:
1, a kind of novel double card sleeve type pipe joint, by fittings body, nut, front cutting ferrule, rear cutting ferrule, formed, it is characterized in that: the front end of front cutting ferrule coordinates with fittings body horn mouth, the front end of rear cutting ferrule contacts with the rear end inner arc surface of front cutting ferrule, and nut screws in fittings body makes the bottommost inclined-plane of nut and the rear end vertical surface of rear cutting ferrule form angle a; The pipe that needs are connected inserts and withstands step in fittings body from nut afterbody, in rotation during jack panel, after nut moves forward and advances, cutting ferrule drives in front cutting ferrule reach process, the front end G of front cutting ferrule shrinks under the bell-mouthed effect of fittings body, be pressed into pipe F, played first sealing and fastening effect; Along with constantly tightening of nut, the stressed of rear cutting ferrule progressively strengthens, in its front end circular arc and front cutting ferrule rear end, circular arc is squeezed and produces when shrinking, nut bottommost inclined-plane progressively disappears into H with the rear end angle a of rear cutting ferrule, the leverage power of its generation makes the front end of rear cutting ferrule snap in better pipe E, has formed second sealing and fastening effect.
2, there are the arc round angle of about R0.5 circular cone in the front end outside of described front cutting ferrule to middle bench, interior bore ends retains wedge angle, the circular arc that has about R1.5 in its rear end outwards with the arc transition of R0.25 left and right to end face, outer rounded ends leaves a small stair, also can not stay step.
3, there is the circular arc C of about R1.5 the front end outside of described rear cutting ferrule prolongs and is raised to step, and step is oblique angle P, and bore ends retains wedge angle; Ear end face is right angle.
4, front cutting ferrule and rear cutting ferrule all carry out cure process.
Advantage of the present invention and beneficial effect are:
1, the front and back cutting ferrule of pipe joint and pipe are realized two seals and twice clamping structure, make its sealability more reliable, and join strength is firmer, bears pressure more powerful.
2, adopt rear cutting ferrule rear end to coordinate with front cutting ferrule rear end circular arc with nut bottommost inclined-plane and rear cutting ferrule front end, structure, produces leverage power and snaps in pipe, makes pipe joint easier for installation easily.
3, reduced the harshness of pipe has been required and installation specification.
Accompanying drawing explanation
Fig. 1 is novel double card sleeve type pipe joint structural drawing;
Fig. 2 is the enlarged view of A in Fig. 1, and a is nut bottommost inclined-plane;
Fig. 3 is front cutting ferrule sectional drawing;
Fig. 4 is the enlarged view of B in Fig. 3;
Fig. 5 is rear cutting ferrule;
Fig. 6 is the enlarged view of C in Fig. 5;
Fig. 7 is that novel double card sleeve type pipe joint is installed the sectional drawing after connecting;
Fig. 8 is the enlarged view of A in Fig. 7.
In figure: 1, fittings body 2, nut 3, front cutting ferrule 4, rear cutting ferrule 5, pipe.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
1, a kind of novel double card sleeve type pipe joint, by fittings body (1), nut (2), front cutting ferrule (3), rear cutting ferrule (4), formed, it is characterized in that: the front end (B) of front cutting ferrule (3) coordinates with fittings body horn mouth, the front end (C) of rear cutting ferrule (4) contacts with the rear end inner arc surface of front cutting ferrule (3), and nut (2) screws in fittings body (1) makes the bottommost inclined-plane (a) of nut (2) and the rear end of rear cutting ferrule (4) coincide and leave angle (a); The pipe (5) that needs are connected inserts and withstands the interior step of fittings body (1) from nut (2) afterbody, during jack panel in rotation (2), after nut (2) moves forward and advances, cutting ferrule (4) drives in front cutting ferrule (3) reach process, the front end (G) of front cutting ferrule (3) shrinks under the bell-mouthed effect of fittings body (1), be pressed into pipe (F), played first sealing and fastening effect; Along with constantly tightening of nut (2), the stressed of rear cutting ferrule (4) progressively strengthens, in its front end circular arc and front cutting ferrule (3) rear end, circular arc is squeezed and produces when shrinking, nut (2) bottommost inclined-plane progressively disappears into (H) with the rear end angle (a) of rear cutting ferrule (4), the leverage power of its generation makes the front end of rear cutting ferrule (4) snap in better pipe (E), has formed second sealing and fastening effect.
2, there are the arc round angle of about R0.5 circular cone in front end (B) outside of described front cutting ferrule (3) to middle bench, interior bore ends retains wedge angle, the circular arc that has about R1.5 in its rear end outwards with the arc transition of R0.25 left and right to end face, outer rounded ends leaves a small stair, also can not stay step.
3, there is the circular arc C of about R1.5 the front end outside of described rear cutting ferrule (4) prolongs and is raised to step, and step is oblique angle P, and bore ends retains wedge angle, and ear end face is right angle.
4, front cutting ferrule (3) and rear cutting ferrule (4) all carry out cure process.
Claims (4)
1. a novel double card sleeve type pipe joint, by fittings body (1), nut (2), front cutting ferrule (3), rear cutting ferrule (4), formed, it is characterized in that: the front end (B) of front cutting ferrule (3) coordinates with fittings body horn mouth, the front end (C) of rear cutting ferrule (4) contacts with the rear end inner arc surface of front cutting ferrule (3), and nut (2) screws in fittings body (1) makes the bottommost inclined-plane (a) of nut (2) and the rear end vertical surface of rear cutting ferrule (4) form angle (a); The pipe (5) that needs are connected inserts and withstands the interior step of fittings body (1) from nut (2) afterbody, during jack panel in rotation (2), after nut (2) moves forward and advances, cutting ferrule (4) drives in front cutting ferrule (3) reach process, the front end (G) of front cutting ferrule (3) shrinks under the bell-mouthed effect of fittings body (1), be pressed into pipe (F), played first sealing and fastening effect; Along with constantly tightening of nut (2), the stressed of rear cutting ferrule (4) progressively strengthens, in its front end circular arc and front cutting ferrule (3) rear end, circular arc is squeezed and produces when shrinking, nut (2) bottommost inclined-plane progressively disappears into (H) with the rear end angle (a) of rear cutting ferrule (4), the leverage power of its generation makes the front end of rear cutting ferrule (4) snap in better pipe (E), has formed second sealing and fastening effect.
2. a kind of novel double card sleeve type pipe joint according to claim 1, it is characterized in that: there are the arc round angle of about R0.5 circular cone in front end (B) outside of described front cutting ferrule (3) to middle bench, interior bore ends retains wedge angle, the circular arc that has about R1.5 in its rear end outwards with the arc transition of R0.25 left and right to end face, outer rounded ends leaves a small stair, also can not stay step.
3. a kind of novel double card sleeve type pipe joint according to claim 1, is characterized in that: there is the circular arc C of R1.5 left and right the front end outside of described rear cutting ferrule (4) prolongs and is raised to step, and step is oblique angle P, and bore ends retains wedge angle, and ear end face is right angle.
4. a kind of novel double card sleeve type pipe joint according to claim 1, is characterized in that: described front cutting ferrule (3) and rear cutting ferrule (4) all carry out cure process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743308.6U CN203560626U (en) | 2013-11-23 | 2013-11-23 | Novel pipe joint with double ferrules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743308.6U CN203560626U (en) | 2013-11-23 | 2013-11-23 | Novel pipe joint with double ferrules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560626U true CN203560626U (en) | 2014-04-23 |
Family
ID=50510347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320743308.6U Expired - Lifetime CN203560626U (en) | 2013-11-23 | 2013-11-23 | Novel pipe joint with double ferrules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560626U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591402A (en) * | 2013-11-23 | 2014-02-19 | 江苏星河阀门有限公司 | Novel two-ferrule tube fitting |
| CN111486281A (en) * | 2020-04-03 | 2020-08-04 | 黄杉杉 | Chemical pipeline capable of preventing leakage |
-
2013
- 2013-11-23 CN CN201320743308.6U patent/CN203560626U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591402A (en) * | 2013-11-23 | 2014-02-19 | 江苏星河阀门有限公司 | Novel two-ferrule tube fitting |
| CN111486281A (en) * | 2020-04-03 | 2020-08-04 | 黄杉杉 | Chemical pipeline capable of preventing leakage |
| CN111486281B (en) * | 2020-04-03 | 2021-11-05 | 江西海瑞天然植物有限公司 | Chemical pipeline capable of preventing leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
|
| CX01 | Expiry of patent term |