CN203533021U - Ferrule pipe joint - Google Patents
Ferrule pipe joint Download PDFInfo
- Publication number
- CN203533021U CN203533021U CN201320711607.1U CN201320711607U CN203533021U CN 203533021 U CN203533021 U CN 203533021U CN 201320711607 U CN201320711607 U CN 201320711607U CN 203533021 U CN203533021 U CN 203533021U
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- CN
- China
- Prior art keywords
- nut
- steel pipe
- fittings
- cutting ferrule
- face
- 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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Abstract
The utility model discloses a ferrule pipe joint, relates to an industrial pipe joint, and aims to provide a ferrule pipe joint, which is convenient to maintain, is high in pressure resistance and sealing performance and is easy and convenient to operate. The ferrule pipe joint comprises a joint body, a nut and a ferrule, wherein the joint body is connected with the nut through a screw thread; a steel pipe is arranged in a hollow space between the joint body and the nut; the ferrule is arranged among the joint body, the nut and the steel pipe with the outer end face and inner end face being matched with the nut and the front end face and the back end face being matched with the joint body and the steel pipe respectively. A first conical groove is formed inside the joint body; a second conical groove is formed inside the nut; a cutting edge is formed on the front portion of the ferrule, and a conical surface is formed on the back portion of the ferrule; the cutting edge is in tight fit with the first conical groove; the conical surface is in tight fit with the second conical groove; the front end of the cutting edge cuts into the surface of the steel pipe.
Description
Technical field
The utility model relates to the pipe joint using in a kind of industry, particularly relates to a kind of Bite type fittings.
Background technique
Pipe joint is in industrial production, to use a kind of part very widely, common Bite type fittings mostly to be all metal construction, and this pipe joint is widely used in the pipe-line systems such as industrial hydraulic system, aerobraking, lubrication.But along with crucial connection request sealing of the hydraulic press pneumatic power systems such as boats and ships, warship, ocean engineering, high ferro, subway, papermaking, tunneling equipment, solar energy, wind energy, control system, lubricating and cooling system etc. is become better and better, the calling hierarchy that is simultaneously easy to maintenance and installation and environmental protection is more and more higher, and traditional Bite type fittings can not meet at present key areas sophisticated equipment with rapid changepl. never-ending changes and improvements and require sealability, system maintenance, pressure rating, efficiently connects and the more high technology requirement of environmental protection.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of maintenance, resistance to compression and good seal performance, Bite type fittings easy and simple to handle be convenient to.
The utility model Bite type fittings, comprise fittings body, nut and cutting ferrule, described fittings body and nut are threaded connection, the middle vacancy of fittings body and nut is used for installing steel pipe, described card can be arranged between fittings body, nut and steel pipe, its exterior edge face and ear end face match with nut, and front-end face and interior edge face match with fittings body and steel pipe respectively.Described fittings body inside is processed with the first cone tank, described nut inside is processed with the second cone tank, described cutting ferrule front portion is processed with cutting edge, the rear portion processing conical surface, described cutting edge and the first cone tank closely cooperate, the described conical surface and the second cone tank closely cooperate, in described cutting edge front end incision steel pipe body surface.
The utility model Bite type fittings, is provided with liner between wherein said cutting ferrule front-end face and fittings body, and the material of described liner is nitrile butadiene rubber or fluorine rubber.
The utility model Bite type fittings, is processed with a circular groove on wherein said cutting ferrule interior edge face, and seal ring is installed in circular groove, and the material of described seal ring is nitrile butadiene rubber or fluorine rubber.
The utility model Bite type fittings, the material of wherein said cutting ferrule is carbon steel or stainless steel.
The utility model Bite type fittings difference from prior art is that the utility model Bite type fittings has adopted the cutting ferrule of given shape, inside and outside four faces in front and back and the fittings body of cutting ferrule, the surface of contact of nut and steel pipe all can reach completely and coordinate, in cutting edge incision steel pipe body surface, wherein cutting edge and liner have sealed the fittings body of the utility model Bite type fittings front end and the space between cutting ferrule jointly, the rear portion conical surface and seal ring have sealed the nut of the utility model Bite type fittings rear end jointly, space between steel pipe and cutting ferrule, sealing effect is splendid.After whole jiont treatment, form an integral body, good sealing and specific material make it to bear higher pressure rating, and compression resistance is good.The core component cutting ferrule of joint is detachably changed, and facilitates engineering staff to safeguard.
Below in conjunction with accompanying drawing, Bite type fittings of the present utility model is described further.
Accompanying drawing explanation
Fig. 1 is the structural representation after the utility model Bite type fittings is installed;
Fig. 2 is the structural representation before the utility model Bite type fittings is installed.
Embodiment
As shown in Figure 1, the utility model Bite type fittings comprises fittings body 1, nut 2, cutting ferrule 3, liner 4 and seal ring 5.Fittings body 1 is threaded connection with nut 2.Fittings body 1 is used for installing steel pipe 7 with the middle vacancy of nut 2.Fittings body 1 inside is processed with the first cone tank, and nut 2 inside are processed with the second cone tank.Cutting ferrule 3 is arranged between fittings body 1, nut 2 and steel pipe 7, and material therefor is carbon steel or stainless steel.Cutting ferrule 3 exterior edge faces and ear end face match with nut 2, and front-end face and interior edge face match with fittings body 1 and steel pipe 7 respectively.Cutting ferrule 3 front portions are processed with cutting edge 6, and rear portion is processed with the conical surface, and cutting edge 6 and the first cone tank closely cooperate, and the conical surface and the second cone tank closely cooperate, wherein in cutting edge 6 front end incision steel pipe 7 body surfaces.Between cutting ferrule 3 front-end faces and fittings body 1, liner 4 is installed, for sealing the fittings body 1 of the utility model Bite type fittings front end and the space between cutting ferrule 3, the penetraction depth that can limit cutting edge 6 simultaneously, the material of sealing liner 4 is nitrile butadiene rubber or fluorine rubber.On cutting ferrule 3 interior edge faces, be processed with a circular groove, seal ring 5 is installed in circular groove, for sealing the space between end nut 2 after the utility model Bite type fittings, steel pipe 7 and cutting ferrule 3, the material of sealing ring 5 is nitrile butadiene rubber or fluorine rubber.
As shown in Figure 2, the utility model Bite type fittings installation process is as follows:
1, the seamless steel pipe 7 of the lower appropriate length of saw, removes port burr.Steel pipe 7 end faces are vertical with axis, and angle tolerance is not more than 0.5 °.If steel pipe 7 needs bending, from steel pipe 7 end faces, to the length of straigh line of crooked position, can not be less than the length of three times of nuts 2.
2, nut 2 and cutting ferrule 3 are enclosed within on seamless steel pipe 7.Note the direction of correct mounting nuts 2 and cutting ferrule 3.
3, on preassembly fittings body screw thread and cutting ferrule 3, coat lubricant oil, steel pipe 7 is inserted to fittings body 1 inside, with hand-screw jack panel 2.
4, fastening nut 2 is until cutting ferrule 3 blocks steel pipe 7, and this turning point is called pressure spot, can feel by the increase of screw-down torque.
5, reach after pressure spot, then nut 2 is tightened to half-turn.
6, preassembly fittings body is pulled down, checked the incision situation of cutting ferrule 3 cutting edges 6, visible projection band must fill up the space of cutting ferrule 3 front-end faces.Cutting ferrule 3 can slightly rotate, but can not axially pass.
7, till the screw thread of the fittings body in as installed 1 being coated to lubricant oil, nut 2 and being coordinated with it and be screwed onto appreciable screwing force and increase, then tighten again half-turn and install.
During installation, should note: need be clean by all processing inside and outside the steel pipe being connected with Bite type fittings 7 jointings during installation, steel pipe 7 jointings must polish flat, and surface can not jagged and male and fomale(M&F).And steel pipe 7 and Bite type fittings embed the position buckling phenomenon that do not have, not so can cause the joint of Bite type fittings and steel pipe 7 to have the phenomenon of leakage.The steel pipe 7 at Connection Card shell type pipe joint two ends preferably adopts the pipe of unified material, effectively Leakage prevention.After steel pipe 7 embeds fittings bodies 1, the dynamics that starts fastening cutting ferrule 3 is also unsuitable excessive, should be incremental cutting ferrule 3 is screwed onto to run-out(of thread) or 2/3 place, then by spanner, nut 2 is once fastening.
As shown in Figure 1, during the installation of the utility model Bite type fittings, the cutting edge 6 of cutting ferrule 3 slips in the first cone tank in fittings body 1, in front end incision steel pipe 7 body surfaces of cutting edge 6, liner 4 seals an integral body of formation completely with the surface of contact of fittings body 1, the interior edge face press seal ring 5 of cutting ferrule 3, completes the sealing to this surface of contact simultaneously, guarantees whole joint safety non-leakage.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (4)
1. a Bite type fittings, comprise fittings body, nut and cutting ferrule, described fittings body and nut are threaded connection, the middle vacancy of fittings body and nut is used for installing steel pipe, described cutting ferrule is arranged on fittings body, between nut and steel pipe, its exterior edge face and ear end face match with nut, front-end face and interior edge face match with fittings body and steel pipe respectively, it is characterized in that: described fittings body inside is processed with the first cone tank, described nut inside is processed with the second cone tank, described cutting ferrule front portion is processed with cutting edge, the rear portion processing conical surface, described cutting edge and the first cone tank closely cooperate, the described conical surface and the second cone tank closely cooperate, in described cutting edge front end incision steel pipe body surface.
2. Bite type fittings according to claim 1, is characterized in that: between described cutting ferrule front-end face and fittings body, liner is installed, the material of described liner is nitrile butadiene rubber or fluorine rubber.
3. Bite type fittings according to claim 1, is characterized in that: on described cutting ferrule interior edge face, be processed with a circular groove, seal ring is installed in circular groove, the material of described seal ring is nitrile butadiene rubber or fluorine rubber.
4. Bite type fittings according to claim 1, is characterized in that: the material of described cutting ferrule is carbon steel or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320711607.1U CN203533021U (en) | 2013-11-13 | 2013-11-13 | Ferrule pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320711607.1U CN203533021U (en) | 2013-11-13 | 2013-11-13 | Ferrule pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203533021U true CN203533021U (en) | 2014-04-09 |
Family
ID=50419228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320711607.1U Expired - Fee Related CN203533021U (en) | 2013-11-13 | 2013-11-13 | Ferrule pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203533021U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020499A (en) * | 2015-07-28 | 2015-11-04 | 成都市松川金属材料有限公司 | Pipe connecting structure |
| CN106764145A (en) * | 2017-01-05 | 2017-05-31 | 宁波市鄞州纳沙液压器材有限公司 | Function nut and ferrule-type compression joint |
| CN107314142A (en) * | 2016-04-26 | 2017-11-03 | 全球能源互联网研究院 | A kind of DC converter valve cooling water channel corrosion protection device for preventing leakage |
| CN113983247A (en) * | 2021-11-17 | 2022-01-28 | 中车南京浦镇车辆有限公司 | Exempt from to screw up coupling based on solidification expanding material |
-
2013
- 2013-11-13 CN CN201320711607.1U patent/CN203533021U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020499A (en) * | 2015-07-28 | 2015-11-04 | 成都市松川金属材料有限公司 | Pipe connecting structure |
| CN107314142A (en) * | 2016-04-26 | 2017-11-03 | 全球能源互联网研究院 | A kind of DC converter valve cooling water channel corrosion protection device for preventing leakage |
| CN107314142B (en) * | 2016-04-26 | 2024-03-19 | 全球能源互联网研究院 | Corrosion protection and leakage prevention device for cooling waterway of direct-current converter valve |
| CN106764145A (en) * | 2017-01-05 | 2017-05-31 | 宁波市鄞州纳沙液压器材有限公司 | Function nut and ferrule-type compression joint |
| CN113983247A (en) * | 2021-11-17 | 2022-01-28 | 中车南京浦镇车辆有限公司 | Exempt from to screw up coupling based on solidification expanding material |
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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 |
Granted publication date: 20140409 Termination date: 20151113 |
|
| EXPY | Termination of patent right or utility model |