CN207064892U - A kind of bite type high-pressure oil pipe joint - Google Patents

A kind of bite type high-pressure oil pipe joint Download PDF

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Publication number
CN207064892U
CN207064892U CN201720918958.8U CN201720918958U CN207064892U CN 207064892 U CN207064892 U CN 207064892U CN 201720918958 U CN201720918958 U CN 201720918958U CN 207064892 U CN207064892 U CN 207064892U
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China
Prior art keywords
connecting portion
nut
cutting ferrule
pressure oil
oil pipe
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Active
Application number
CN201720918958.8U
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Chinese (zh)
Inventor
戚顺平
梁松千
唐玉芝
冯克明
苏海燕
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Nantong AMC Machinery Co Ltd
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Nantong AMC Machinery Co Ltd
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Priority to CN201720918958.8U priority Critical patent/CN207064892U/en
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Publication of CN207064892U publication Critical patent/CN207064892U/en
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Abstract

The utility model provides a kind of bite type high-pressure oil pipe joint, the nut being threadedly coupled including fittings body, with the fittings body, the cutting ferrule being arranged between the fittings body and the nut, connecting tube is inserted in the fittings body, and is fixed by the nut and the cutting ferrule;A connecting portion is provided with the connector, the connecting portion lateral wall is connected with the nut thread, the connecting portion madial wall is connected with the cutting ferrule and joint face is in inclined-plane, the nut bottom is pressed close in the connecting portion end, the first sealing tooth is provided with the inclined-plane of the connecting portion, the second sealing tooth is provided with the inclined-plane of the cutting ferrule, and the first sealing tooth and the second sealing tooth match.The utility model is simple in construction, and nut can be avoided to cause cutting ferrule to damage when tightening.

Description

A kind of bite type high-pressure oil pipe joint
Technical field
It the utility model is related to a kind of pipe joint, more particularly to a kind of bite type high-pressure oil pipe joint.
Background technology
High-pressure oil pipe joint is that the part between high-pressure oil pipe is connected in hydraulic system, generally there is bite type, light wall pipe enlarging Several forms such as formula and welded type, bite type are most common one kind.
Existing bite type high-pressure oil pipe joint generally includes fittings body, the nut being threadedly coupled with fittings body, is arranged at Cutting ferrule between nut and fittings body, connecting tube are inserted in fittings body, are constantly tightened by nut, show consideration for cutting ferrule and joint Close, and be fixedly connected with pipe.But existing bite type high-pressure oil pipe joint, after nut is excessively tightened, cutting ferrule can be caused to become Shape is even damaged, the final sealing property for influenceing bite type high-pressure oil pipe joint.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of bite type high-pressure oil pipe joint, nut can be avoided to twist When tight, cause cutting ferrule deformation or even damage.
In order to achieve the above object, the utility model uses following technical scheme:
A kind of bite type high-pressure oil pipe joint, including fittings body, be threadedly coupled with the fittings body nut, be arranged at institute The cutting ferrule between fittings body and the nut is stated, connecting tube is inserted in the fittings body, and passes through the nut and the card Set is fixed;
A connecting portion is provided with the connector, the connecting portion lateral wall is connected with the nut thread, the company Socket part madial wall is connected with the cutting ferrule and joint face is in inclined-plane, and the nut bottom, the company are pressed close in the connecting portion end The first sealing tooth is provided with the inclined-plane of socket part, the second sealing tooth, and first sealing are provided with the inclined-plane of the cutting ferrule Tooth and the second sealing tooth match.
A kind of above-mentioned bite type high-pressure oil pipe joint, wherein, set between the cutting ferrule end and the connecting portion bottom It is equipped with the first sealing ring.
A kind of above-mentioned bite type high-pressure oil pipe joint, wherein, set between the connecting portion end and the nut bottom It is equipped with the second sealing ring.
A kind of above-mentioned bite type high-pressure oil pipe joint, wherein, the crown of the first sealing tooth is towards the connecting portion Bottom direction.
A kind of above-mentioned bite type high-pressure oil pipe joint, wherein, the crown of the second sealing tooth is towards the connecting portion End direction.
Using above technical scheme, following beneficial effect can be reached:
Nut bottom is pressed close in the utility model connecting portion end, in the absence of very big gap, cutting ferrule can be avoided to deform, together When, the first sealing ring is provided between cutting ferrule end and connecting portion bottom, when nut is tightened, cutting ferrule and the first sealing Circle offsets, and operating personnel can be clearly felt that, and stops continuing to tighten nut, prevents cutting ferrule from deforming, while can avoid The hardness touching of cutting ferrule and fittings body, it can equally avoid the deformation of cutting ferrule or even damage.
Brief description of the drawings
Fig. 1 is a kind of structural representation of bite type high-pressure oil pipe joint of the utility model;
Fig. 2 is A portions enlarged drawing in the utility model Fig. 1.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but not as of the present utility model Limit.
As depicted in figs. 1 and 2, a kind of bite type high-pressure oil pipe joint, including fittings body 1, be threadedly coupled with fittings body 1 Nut 2, the cutting ferrule 3 being arranged between fittings body 1 and nut 2, connecting tube 100 are inserted in fittings body 1, and pass through the He of nut 2 Cutting ferrule 3 is fixed;A connecting portion 11 is provided with connector 1, the lateral wall of connecting portion 11 is threadedly coupled with nut 2, in connecting portion 11 Side wall is connected with cutting ferrule 3 and joint face is in inclined-plane, and the end of connecting portion 11 is pressed close to the bottom of nut 2, set on the inclined-plane of connecting portion 11 There is the first sealing tooth 12, the second sealing tooth 13 is provided with the inclined-plane of cutting ferrule 3, and the first sealing tooth 12 and second seals the phase of tooth 13 Matching.
Preferably, the crown of the first sealing tooth 12 seals the crown direction of tooth 13 towards the bottom direction of connecting portion 11, second The end direction of connecting portion 11.
In the preferable embodiment of the utility model, it is close between the end of cutting ferrule 3 and the bottom of connecting portion 11 to be provided with first Seal 4, when nut 2 is tightened, cutting ferrule 3 is constantly pushed into the bottom of connecting portion 11 by nut 2, until cutting ferrule 3 and first close Seal 4 offsets, and operating personnel can be clearly felt that, and stops continuing to tighten nut 2, prevents cutting ferrule 3 from deforming, while can also The liquid in connecting tube 100 is avoided to be let out between the joint face of cutting ferrule 3 and connecting portion 11.
In the preferable embodiment of the utility model, the second sealing is provided between the end of connecting portion 11 and the bottom of nut 2 Circle 5, the liquid leakage that can avoid reaching the bottom of nut 2 are gone out.
When specific installation, connecting tube 100 is inserted into fittings body 1, until the bottom of connecting portion 11, then successively The first sealing ring 4, cutting ferrule 3, the second sealing ring 5 are inserted in, nut 2 is finally inserted in, then constantly tightens nut 2, now, nut 2 constantly promote cutting ferrule 3 to enter fittings body 1, until cutting ferrule 3 is entered at the first sealing ring 4 of the bottom of connecting portion 11, first is close Seal 4 is preferably elastic rubber ring, and after being offseted with cutting ferrule 3, stopping continues to tighten nut, and now the first sealing ring 4 gives card The power of 3 one bounce-backs are covered, promote cutting ferrule 3 to return, simultaneously as the first sealing crown of tooth 12 is towards the bottom direction of connecting portion 11, The crown of second sealing tooth 13 is towards the end direction of connecting portion 11, and therefore, when cutting ferrule 3 is retracted, second on cutting ferrule 3 seals tooth In the first sealing tooth 12 in 13 meeting Snap joint portions 11, it is allowed to fixed.Now, fittings body 1 and cutting ferrule 3 are substituted existing by tooth sealing There is the face sealing in technology, not only increase sealing property, and connect more stable.
The foregoing is only the utility model preferred embodiment, not thereby limit embodiment of the present utility model and Protection domain, to those skilled in the art, it should can appreciate that all with the utility model specification and diagram Hold the scheme obtained by made equivalent substitution and obvious change, should be included in protection model of the present utility model In enclosing.

Claims (5)

1. a kind of bite type high-pressure oil pipe joint, including fittings body, be threadedly coupled with the fittings body nut, be arranged at it is described Cutting ferrule between fittings body and the nut, connecting tube are inserted in the fittings body, and pass through the nut and the cutting ferrule It is fixed;
It is characterized in that:A connecting portion is provided with the connector, the connecting portion lateral wall is connected with the nut thread, The connecting portion madial wall is connected with the cutting ferrule and joint face is in inclined-plane, and the nut bottom is pressed close in the connecting portion end, The first sealing tooth is provided with the inclined-plane of the connecting portion, the second sealing tooth, and described are provided with the inclined-plane of the cutting ferrule One sealing tooth and the second sealing tooth match.
A kind of 2. bite type high-pressure oil pipe joint according to claim 1, it is characterised in that:The cutting ferrule end with it is described The first sealing ring is provided between connecting portion bottom.
A kind of 3. bite type high-pressure oil pipe joint according to claim 1, it is characterised in that:The connecting portion end and institute State and be provided with the second sealing ring between nut bottom.
A kind of 4. bite type high-pressure oil pipe joint according to claim 1, it is characterised in that:The tooth of the first sealing tooth Point is towards the connecting portion bottom direction.
A kind of 5. bite type high-pressure oil pipe joint according to claim 4, it is characterised in that:The tooth of the second sealing tooth Point is towards the connecting portion end direction.
CN201720918958.8U 2017-07-27 2017-07-27 A kind of bite type high-pressure oil pipe joint Active CN207064892U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720918958.8U CN207064892U (en) 2017-07-27 2017-07-27 A kind of bite type high-pressure oil pipe joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720918958.8U CN207064892U (en) 2017-07-27 2017-07-27 A kind of bite type high-pressure oil pipe joint

Publications (1)

Publication Number Publication Date
CN207064892U true CN207064892U (en) 2018-03-02

Family

ID=61516939

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720918958.8U Active CN207064892U (en) 2017-07-27 2017-07-27 A kind of bite type high-pressure oil pipe joint

Country Status (1)

Country Link
CN (1) CN207064892U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109296858A (en) * 2018-11-23 2019-02-01 中国石油大学(华东) A kind of ocean flexible pipe joint structure
CN111878645A (en) * 2020-08-11 2020-11-03 贵州航天精工制造有限公司 Pipe joint with anti-loosening structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109296858A (en) * 2018-11-23 2019-02-01 中国石油大学(华东) A kind of ocean flexible pipe joint structure
CN111878645A (en) * 2020-08-11 2020-11-03 贵州航天精工制造有限公司 Pipe joint with anti-loosening structure

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