CN2443217Y - Quick-acting joint for pipe - Google Patents

Quick-acting joint for pipe Download PDF

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Publication number
CN2443217Y
CN2443217Y CN 00251103 CN00251103U CN2443217Y CN 2443217 Y CN2443217 Y CN 2443217Y CN 00251103 CN00251103 CN 00251103 CN 00251103 U CN00251103 U CN 00251103U CN 2443217 Y CN2443217 Y CN 2443217Y
Authority
CN
China
Prior art keywords
chuck
pipes
conical surface
pipe fitting
sleeve
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
Application number
CN 00251103
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Chinese (zh)
Inventor
严松梅
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.)
Individual
Original Assignee
Individual
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
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Priority to CN 00251103 priority Critical patent/CN2443217Y/en
Application granted granted Critical
Publication of CN2443217Y publication Critical patent/CN2443217Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

The utility model relates to a quick-acting joint for pipes, which is composed of connecting sleeves which are mutually connected with each other tightly, a taper sleeve, a sealing ring and pipes which are connected. The sealing ring, a taper ring, and a jacket with elasticity and a changeable diameter are sheathed between the taper sleeve and the pipes. The inner side conical surface of the taper ring is matched with the back conical surface of the jacket. A front conical surface inside the taper sleeve is matched to the front conical surface of the jacket. Semi-open slots are arranged on the circumference of the jacket with equal distance and the adjacent openings are in different directions. When the pipes are installed, the pipes, the jacket, and the taper sleeve can be self-locked mutually by inserting the pipes into the quick-acting joint for pipes and the pipes can be clamped firmly. The pipes can also be disassembled conveniently, because the pipes are not connected by threads and can be quickly disassembled without breaking parts which can be used repeatedly after disassembled.

Description

A kind of fast holding pipe joint
The utility model relates to the pipe joint technical field, particularly a kind of fast holding pipe joint.
Existing a kind of pipe joint, referring to shown in Figure 1, it comprises Female connector fittings 1, rubber seal 2, pressure-bearing body 3, one awl end of seal ring 2 is housed in the end face taper hole of pressure-bearing body 3, and an end taper hole socket of the other end of seal ring 2 and Female connector fittings 1, the other end of Female connector fittings 1 is connected with the outside thread of pressure-bearing body 3, and the end face of the pipe fitting of installing in the endoporus of seal ring 24 withstands on the step of pressure-bearing body 3 endoporus by the back-up ring of seal ring 2.There is following shortcoming in the pipe joint of this structure: (1) since pipe fitting and joint be connected the friction that only depends on seal ring, press in by axial tension or pipe-line system when rising when meeting pipe fitting, be prone to the pipe fitting obscission.(2) two internal taper hole structures of forming of pressure-bearing body and Female connector fittings, it is not ideal enough to hold the pipe fitting effect tightly for rubber seal, easily causes sealability decline.(3) nut is screwing in the process with the pressure-bearing body, and the conical surface of seal ring can friction and fold take place with nut, makes to screw difficulty, influence construction quality, screws reality and does not screw because of takeing for easily, thereby cause leakage.
The purpose of this utility model is to provide a kind of nothing to be threaded, to seal reliable, fast assembling and disassembling, dismantle the not fast holding pipe joint of injuring part.
The purpose of this utility model is achieved in that a kind of fast holding pipe joint, comprise connecting sleeve, tapered sleeve, seal ring, connected pipe fitting, connecting sleeve and tapered sleeve are fastenedly connected, be set with seal ring between described tapered sleeve and the connected pipe fitting successively, bore the chuck that encloses, has elasticity and reducing, the described chuck outside is provided with inner cone and rear cone, described awl circle inboard is provided with the conical surface and mates with the chuck rear cone, the inboard inner cone coupling of described chuck inner cone and tapered sleeve.Described seal ring is contained between connecting sleeve and the awl circle.Described chuck is along the axial equidistant semi-open slot that has of circumferential position, and the opening direction of adjacent semi-open slot is opposite.Described chuck front inner diameter is a bit larger tham the connecting tube external diameter, and the connecting tube external diameter also is a bit larger tham the chuck back end inside diameter, and described chuck part inwall is provided with many protruding circles.
During installation, connecting sleeve and tapered sleeve can be integral with ultrasonic welding.After pipe fitting inserts from the chuck front portion, the chuck front portion slightly can be swollen, the pretightening force of chuck between pipe fitting moves chuck and pipe fitting.When pipe fitting and chuck are subjected to hydraulic pressure or other power effect to produce to outer displacement, as long as move on to the conical surface of chuck and tapered sleeve when being in contact with one another, just can produce one entad component tighten pipe fitting.Because the conical surface tapering that is in contact with one another is less, the entad component that produces acts on the maximum friction that produced between chuck and the pipe fitting greater than the suffered outside axial force of pipe fitting, thereby, produce self-locking between pipe fitting, chuck, the tapered sleeve three, pipe fitting is clamped firmly.
During the dismounting pipe fitting, pipe fitting is pushed inward with chuck, then, continue inwards to promote chuck, outwards transfer to pipe fitting again, at this moment, because the thrust of staff is greater than the friction between chuck and the pipe fitting, chuck just can outwards not move with pipe fitting, as long as the conical surface of chuck does not contact with the conical surface of tapered sleeve, just can not produce entad clamping force to pipe fitting, pipe fitting just can be transferred to easily.Pressure in seal ring is subjected to managing is outside when mobile, and suffered outside power is passed to awl circle and therewith outwards motion, when the conical surface of awl circle with after the rear cone of chuck contacts, can produce entad component to chuck, this power can be assisted the chucking pipe fitting.Chuck adopts and makes than duroplasts, and the many protruding circles that its inwall is set can increase the friction ractor between chuck and the pipe fitting.The awl circle is kept apart seal ring and tapered sleeve, is destroyed by the opening slot on the chuck to prevent seal ring.
Advantage of the present utility model is whole parts by injection molding, and nothing is threaded, and is simple in structure, and sealing is reliable, fast assembling and disassembling, and injuring part not after the dismounting can reuse; For straight-through, elbow, threeway and multiple way union, be the connecting sleeve difference, other parts can exchange fully, save die cost greatly, reduce production costs.
Fig. 1 is the structural representation of existing a kind of pipe joint.
Fig. 2 is an embodiment's of the utility model a structural representation.
Fig. 3 is a chuck plan view shown in Figure 2.
Fig. 4 is the A-A sectional view of Fig. 3.
Fig. 5 is the stereogram of chuck shown in Figure 2.
By following embodiment the utility model is further elaborated.
Shown in Figure 5 referring to Fig. 2 one, a kind of fast holding pipe joint of embodiment of the utility model is made up of chuck 7, awl circle 8, tapered sleeve 9, rubber seal 10, connecting sleeve 11, connecting sleeve 11 is fixed with tapered sleeve 9 usefulness ultrasonic welding, before welding, put into rubber seal 10 and awl circle 8 earlier, postwelding just is pressed into chuck 7.Axially equidistantly on these chuck 7 whole circumference be full of semi-open slot 13, and the opening direction of adjacent semi-open slot 13 is opposite, thereby has the characteristics of elasticity and reducing.Be provided with three protruding circles 12 at chuck 7 inwall rear portions, chuck 7 outsides are provided with inner cone and rear cone, and awl circle 8 inboards are provided with the conical surface and mate with chuck 7 rear cones, chuck 7 inner cones and tapered sleeve 9 inboard inner cones couplings.7 back end inside diameter D2 triadic relations are as follows for the outer diameter D 1 of connecting tube 6, chuck 7 front inner diameter D3, chuck: D1>D2, D3) D1.

Claims (4)

1, a kind of fast holding pipe joint, comprise connecting sleeve, tapered sleeve, seal ring, connected pipe fitting, connecting sleeve and tapered sleeve are fastenedly connected, it is characterized in that being set with successively between described tapered sleeve and the connected pipe fitting seal ring, bore the chuck that encloses, has elasticity and reducing, the described chuck outside is provided with inner cone and rear cone, described awl circle inboard is provided with the conical surface and mates with the chuck rear cone, the inboard inner cone coupling of described chuck inner cone and tapered sleeve.
2, fast holding pipe joint according to claim 1 is characterized in that described seal ring is contained between connecting sleeve and the awl circle.
3, fast holding pipe joint according to claim 1 it is characterized in that described chuck along the axial equidistant semi-open slot that has of circumferential position, and the opening direction of adjacent semi-open slot is opposite.
4, according to claim 1 or 3 described fast holding pipe joints, it is characterized in that described chuck front inner diameter is a bit larger tham the connecting tube external diameter, and the connecting tube external diameter also is a bit larger tham the chuck back end inside diameter, described chuck part inwall is provided with many protruding circles.
CN 00251103 2000-09-11 2000-09-11 Quick-acting joint for pipe Expired - Fee Related CN2443217Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 00251103 CN2443217Y (en) 2000-09-11 2000-09-11 Quick-acting joint for pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 00251103 CN2443217Y (en) 2000-09-11 2000-09-11 Quick-acting joint for pipe

Publications (1)

Publication Number Publication Date
CN2443217Y true CN2443217Y (en) 2001-08-15

Family

ID=33609130

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 00251103 Expired - Fee Related CN2443217Y (en) 2000-09-11 2000-09-11 Quick-acting joint for pipe

Country Status (1)

Country Link
CN (1) CN2443217Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110258823A (en) * 2018-03-28 2019-09-20 李庆三 A kind of round tube node transformational structure for building
CN110360402A (en) * 2019-07-26 2019-10-22 袁洪金 A kind of polypropylene anti-corrosion pipe fitting

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110258823A (en) * 2018-03-28 2019-09-20 李庆三 A kind of round tube node transformational structure for building
CN110258823B (en) * 2018-03-28 2021-01-08 上海民航新时代机场设计研究院有限公司 Pipe node transform structure for building
CN110360402A (en) * 2019-07-26 2019-10-22 袁洪金 A kind of polypropylene anti-corrosion pipe fitting

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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