CN107448713A - A kind of bite type seal tube joint - Google Patents

A kind of bite type seal tube joint Download PDF

Info

Publication number
CN107448713A
CN107448713A CN201710735108.9A CN201710735108A CN107448713A CN 107448713 A CN107448713 A CN 107448713A CN 201710735108 A CN201710735108 A CN 201710735108A CN 107448713 A CN107448713 A CN 107448713A
Authority
CN
China
Prior art keywords
pipe joint
joint body
leading portion
sealing ring
pipe
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.)
Pending
Application number
CN201710735108.9A
Other languages
Chinese (zh)
Inventor
俞张良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HAIYAN SHUANGYING PIPE FITTINGS MANUFACTURING Co Ltd
Original Assignee
HAIYAN SHUANGYING PIPE FITTINGS MANUFACTURING Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HAIYAN SHUANGYING PIPE FITTINGS MANUFACTURING Co Ltd filed Critical HAIYAN SHUANGYING PIPE FITTINGS MANUFACTURING Co Ltd
Priority to CN201710735108.9A priority Critical patent/CN107448713A/en
Publication of CN107448713A publication Critical patent/CN107448713A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/005Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts comprising locking means for the threaded member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/075Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends specially adapted for spigot-and-socket joints for pipes of the same diameter
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/18Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses characterised by the use of additional sealing means

Abstract

The invention discloses a kind of bite type seal tube joint, including pipe joint body, seal groove, the first sealing ring, stop collar, connecting sleeve, loose joint nut, non-return circle, the second sealing ring, elastic sealed body and steel ball, connecting sleeve is provided with the port of the pipe joint body leading portion, the loose joint nut is arranged on pipe joint body leading portion, and the pipe joint body back segment is provided with non-return circle.The present invention has reached good sealing effectiveness by the tight fit of connecting sleeve and the second sealing ring, elastic sealed body and steel ball;Loose joint nut makes pipe joint body and the even closer fitting of connecting sleeve and clamping body, ensure that the fixing of pipe joint, and loose joint nut can be damaged with protective conduit interface, convenient dismounting;The cylindrical structural with chamfering gradually tapered up of hydraulic hose connection end port, make the connection of flexible pipe and pipe joint more convenient;Barb on non-return circle prevents flexible pipe from coming off, and ensure that the sealing and fixing of connection.

Description

A kind of bite type seal tube joint
【Technical field】
The present invention relates to the technical field of ferrule-type compression joint, the technology neck of particularly a kind of bite type seal tube joint Domain.
【Background technology】
Pipe joint is the fastening means between pipeline and pipeline, is the tie point that can be dismounted between element and pipeline. Indispensable key player is act as in pipe fitting, it is one of two main composition parts of hydraulic pipeline.Pipe joint is used for Instrument isoline connects, and type of attachment has socket weld or threaded connection.It is mainly used in small-bore low-pressure line, it is frequent for needing The position of assembly and disassembly is used as the final adjustment using threaded fitting pipeline.Structure type preferably uses metal covering contact sealing Structure, the structure type of gasket seal are generally used for conveying on the general pipeline such as water, oil, air.Pipe joint has various kind Class, conventional pipe joint can be generally divided into two kinds of hard pipe joint and hose coupling.Existing hose coupling structure generally comprises Joint core and collar nut, collar nut are fastened in joint core one end, and the joint core other end is the connection end of insertion flexible pipe, the company End is connect as cylinder, hose buckling is easily broken off in connection end end stress concentration, greatly reduces the use of flexible pipe Life-span;Meanwhile cylindrical connection end is not only not easily pluggable into flexible pipe, and easily come off, cause the close of flexible pipe and joint core It is bad to seal effect, easy oil leak;In addition, it is usually exposed at pipe joint, such interface is easily damaged and caused whole Individual conveyance conduit paralysis.
【The content of the invention】
The purpose of the present invention is exactly to solve the problems of the prior art, proposes a kind of bite type seal tube joint, installation It is convenient, sound construction, good airproof performance, the failures such as error leakage are less prone to, and there is nut protection the junction of pipeline and joint, Preferably junction is protected not to be damaged, the service life of joint of extending.
To achieve the above object, the present invention proposes a kind of bite type seal tube joint, including pipe joint body, sealing Groove, the first sealing ring, stop collar, connecting sleeve, loose joint nut, non-return circle, the second sealing ring, elastic sealed body and steel ball, institute Stating pipe joint body includes pipe joint body leading portion and pipe joint body back segment, the pipe joint body leading portion and pipe joint body Back segment is integral type structure, and connecting sleeve, the connecting sleeve and pipe joint are provided with the port of the pipe joint body leading portion An inverted trapezoidal space is formed between body leading portion, the second sealing ring, elastic sealed body and steel are provided with the inverted trapezoidal space Ball, the edge of the elastic sealed body is elastic zigzag structure, and the elastic sealed body tight abutment is in steel ball, the second sealing In the side wall of ring and pipe joint body leading portion, the loose joint nut is arranged on pipe joint body leading portion, the pipe joint body Back segment includes seal groove, the first sealing ring and stop collar, and the seal groove is located at the top of stop collar, the seal groove built with First sealing ring, is additionally provided with several non-return circles on the pipe joint body back segment, and the non-return circle is overhead structure and along pipe Joint body back segment is axially distributed.
Preferably, the pipe joint body also includes inserted terminal and hydraulic hose connection end, the loose joint nut installation At the port of inserted terminal, the port of the hydraulic hose connection end is the cylinder port with chamfering gradually tapered up.
Preferably, pipe joint body, seal groove and the stop collar are integral type structure.
Preferably, there be at least one circle latch one end of the non-return circle, the latch is the barb of swallowtail-shaped structure.
Preferably, the quantity of the steel ball is several.
Preferably, the outer wall of the pipe joint body leading portion is provided with external screw thread, the external screw thread and loose joint nut phase Coordinate.
Beneficial effects of the present invention:The present invention is tight by connecting sleeve and the second sealing ring, elastic sealed body and steel ball Close fit, good sealing effectiveness is reached;Pipe joint body and the even closer fitting of connecting sleeve are made simultaneously by loose joint nut Clamping body, the fixing of pipe joint is ensure that, and loose joint nut can be damaged with protective conduit interface, conveniently be torn open Unload, extend the service life of pipe joint, improve operating efficiency;Fallen by the band gradually tapered up of hydraulic hose connection end port The cylindrical structural at angle, make the cooperation of connection flexible pipe and port from free state to impaction state, eliminate stress concentration, make flexible pipe Connection with pipe joint is more convenient;Prevent flexible pipe from coming off by the barb on non-return circle, ensure that sealing and the jail of connection It is easy for installation by property, it is less prone to the failures such as error leakage.
The feature and advantage of the present invention will be described in detail by embodiment combination accompanying drawing.
【Brief description of the drawings】
Fig. 1 is a kind of structural representation of bite type seal tube joint of the present invention.
In figure:1- pipe joints body, 2- seal grooves, the sealing rings of 3- first, 4- stop collars, 5- connecting sleeves, 6- loose joint spiral shells Mother, 7- non-returns circle, the sealing rings of 51- second, 52- elastic sealed bodies, 53- steel balls, 54- inverted trapezoidals space, 11- inserted terminals, 12- liquid Press hose connection end, 13- pipe joint bodies leading portion, 14- pipe joint bodies back segment, 71- latches, 131 external screw threads.
【Embodiment】
Refering to Fig. 1, a kind of bite type seal tube joint of the present invention, including the sealing of pipe joint body 1, seal groove 2, first Ring 3, stop collar 4, connecting sleeve 5, loose joint nut 6, non-return circle 7, the second sealing ring 51, elastic sealed body 52 and steel ball 53, institute Stating pipe joint body 1 includes pipe joint body leading portion 13 and pipe joint body back segment 14, the pipe joint body leading portion 13 and pipe Joint body back segment 14 is integral type structure, and connecting sleeve 5, the connection are provided with the port of the pipe joint body leading portion 13 An inverted trapezoidal space 54 is formed between cutting ferrule 5 and pipe joint body leading portion 13, it is close to be provided with second in the inverted trapezoidal space 54 Seal ring 51, elastic sealed body 52 and steel ball 53, the edge of the elastic sealed body 52 is elastic zigzag structure, and the elasticity is close The tight abutment of body 52 is sealed in the side wall of steel ball 53, the second sealing ring 51 and pipe joint body leading portion 13, the loose joint nut 6 is pacified On pipe joint body leading portion 13, the pipe joint body back segment 14 includes seal groove 2, the first sealing ring 3 and stop collar 4, The seal groove 2 is located at the top of stop collar 4, and the seal groove 2 is built with the first sealing ring 3, the pipe joint body back segment Several non-return circles 7 are additionally provided with 14, the non-return circle 7 is overhead structure and is axially distributed along pipe joint body back segment 14.
The pipe joint body 1 also includes inserted terminal 11 and hydraulic hose connection end 12, and the loose joint nut 6, which is arranged on, to be inserted At the port for connecing end 11, the port of the hydraulic hose connection end 12 is the cylinder port with chamfering gradually tapered up.It is described Pipe joint body 1, seal groove 2 and stop collar 4 are integral type structure.There is at least one circle latch 71 one end of the non-return circle 7, The latch 71 is the barb of swallowtail-shaped structure.The quantity of the steel ball 53 is several.The pipe joint body leading portion 13 Outer wall is provided with external screw thread 131, and the external screw thread 131 is engaged with loose joint nut 6.
The course of work of the present invention:
The present invention is reached by the tight fit of the sealing ring 51 of connecting sleeve 5 and second, elastic sealed body 52 and steel ball 53 Good sealing effectiveness, elastic sealed body 52 under the pressure of the sealing ring 51 of connecting sleeve 5 and second, elastic sealed body 52 Elastic zigzag structure is tightly abutted against in the side wall of steel ball 53, the second sealing ring 51 and pipe joint body leading portion 13, reaches close Seal effect;Pipe joint body 1 and the even closer fitting of connecting sleeve 5 and clamping body are made by loose joint nut 6, ensure that pipe connects The fixing of head, and loose joint nut 6 can be damaged with protective conduit interface, convenient dismounting, extend making for pipe joint With the life-span, operating efficiency is improved;By the cylindrical structural with chamfering gradually tapered up of hydraulic hose connection end port 12, make The cooperation of connection flexible pipe and port eliminates stress concentration, makes the connection of flexible pipe and pipe joint more from free state to impaction state Add conveniently;Prevent flexible pipe from coming off by the barb on non-return circle 7, ensure that the sealing and fixing of connection, it is easy for installation, no The easy failures such as leakage of making a fault.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after Scheme belong to protection scope of the present invention.

Claims (6)

  1. A kind of 1. bite type seal tube joint, it is characterised in that:Including pipe joint body (1), seal groove (2), the first sealing Ring (3), stop collar (4), connecting sleeve (5), loose joint nut (6), non-return circle (7), the second sealing ring (51), elastic sealed body (52) and steel ball (53), the pipe joint body (1) include pipe joint body leading portion (13) and pipe joint body back segment (14), institute It is integral type structure to state pipe joint body leading portion (13) and pipe joint body back segment (14), the pipe joint body leading portion (13) Connecting sleeve (5) is provided with port, an inverted trapezoidal sky is formed between the connecting sleeve (5) and pipe joint body leading portion (13) Gap (54), the inverted trapezoidal space (54) is interior to be provided with the second sealing ring (51), elastic sealed body (52) and steel ball (53), the bullet The edge of property seal (52) is elastic zigzag structure, and elastic sealed body (52) tight abutment is in steel ball (53), second In the side wall of sealing ring (51) and pipe joint body leading portion (13), the loose joint nut (6) is arranged on pipe joint body leading portion (13) on, the pipe joint body back segment (14) includes seal groove (2), the first sealing ring (3) and stop collar (4), the sealing Groove (2) is located at the top of stop collar (4), and the seal groove (2) is built with the first sealing ring (3), the pipe joint body back segment (14) several non-return circles (7) are additionally provided with, the non-return circle (7) is for overhead structure and axial along pipe joint body back segment (14) Distribution.
  2. A kind of 2. bite type seal tube joint as claimed in claim 1, it is characterised in that:The pipe joint body (1) is also Including inserted terminal (11) and hydraulic hose connection end (12), the loose joint nut (6) is arranged at the port of inserted terminal (11), institute The port for stating hydraulic hose connection end (12) is the cylinder port with chamfering gradually tapered up.
  3. A kind of 3. bite type seal tube joint as claimed in claim 1, it is characterised in that:It is the pipe joint body (1), close Sealing groove (2) and stop collar (4) are integral type structure.
  4. A kind of 4. bite type seal tube joint as claimed in claim 1, it is characterised in that:One end of the non-return circle (7) Also at least one circle latch (71), the latch (71) are the barb of swallowtail-shaped structure.
  5. A kind of 5. bite type seal tube joint as claimed in claim 1, it is characterised in that:The quantity of the steel ball (53) is Several.
  6. A kind of 6. bite type seal tube joint as claimed in claim 1, it is characterised in that:The pipe joint body leading portion (13) outer wall is provided with external screw thread (131), and the external screw thread (131) is engaged with loose joint nut (6).
CN201710735108.9A 2017-08-24 2017-08-24 A kind of bite type seal tube joint Pending CN107448713A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710735108.9A CN107448713A (en) 2017-08-24 2017-08-24 A kind of bite type seal tube joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710735108.9A CN107448713A (en) 2017-08-24 2017-08-24 A kind of bite type seal tube joint

Publications (1)

Publication Number Publication Date
CN107448713A true CN107448713A (en) 2017-12-08

Family

ID=60493984

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710735108.9A Pending CN107448713A (en) 2017-08-24 2017-08-24 A kind of bite type seal tube joint

Country Status (1)

Country Link
CN (1) CN107448713A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110397342A (en) * 2019-06-27 2019-11-01 中国五冶集团有限公司 A kind of environmental protection construction enclosing of soft docking

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110397342A (en) * 2019-06-27 2019-11-01 中国五冶集团有限公司 A kind of environmental protection construction enclosing of soft docking

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