CN203384519U - Straight pipe joint with inner tooth casing - Google Patents

Straight pipe joint with inner tooth casing Download PDF

Info

Publication number
CN203384519U
CN203384519U CN201320434354.8U CN201320434354U CN203384519U CN 203384519 U CN203384519 U CN 203384519U CN 201320434354 U CN201320434354 U CN 201320434354U CN 203384519 U CN203384519 U CN 203384519U
Authority
CN
China
Prior art keywords
pipe
groove
tube
seal ring
free flow
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
CN201320434354.8U
Other languages
Chinese (zh)
Inventor
岑攀益
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.)
Ningbo Friendship Copper Industry Co Ltd
Original Assignee
Ningbo Friendship Copper Industry 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 Ningbo Friendship Copper Industry Co Ltd filed Critical Ningbo Friendship Copper Industry Co Ltd
Priority to CN201320434354.8U priority Critical patent/CN203384519U/en
Application granted granted Critical
Publication of CN203384519U publication Critical patent/CN203384519U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a straight pipe joint with an inner tooth casing. The straight pipe joint comprises a connecting pipe and a splicing pipe; the internal diameter of the connecting pipe is larger than the external diameter of the splicing pipe; a first thread connecting part is arranged on one pipe wall on the inner side of the connecting pipe; a first groove, a second groove and a third groove are formed in the splicing pipe; a seal ring, of which the section is N-shaped, is clamped in the first groove; a first circular groove and a second circular groove are respectively formed in two sides of the seal ring; an O-shaped ring is embedded in the second groove; an outer tooth casing is rotatably arranged on the third groove; a second thread connecting part is arranged on one pipe wall on the inner side of the outer tooth casing. The straight pipe joint is firm in connection, good in sealing performance, convenient to assemble, and relatively low in production cost.

Description

A kind of free flow coupling with the inner tooth sleeve pipe
Technical field
The utility model relates to the pipe joint technical field, especially relates to a kind of free flow coupling with the inner tooth sleeve pipe.
Background technique
Pipe joint is the connecting element between pipeline, it is tight and firm for pipeline is connected, general hinge screw thread or the groove opened in the end of pipe joint, in order to be connected with pipeline thread or groove, existing pipe joint connects firm not, and sealing is poor, and the pipeline that can not be applicable to high-pressure liquid connects, and assembling is inconvenient, cost of production is higher.
Summary of the invention
The deficiency existed for above-mentioned prior art, the purpose of this utility model will provide a kind of and be connected firmly, the free flow coupling with the inner tooth sleeve pipe of good airproof performance, and it is easy to assembly, and cost of production is lower.
To achieve these goals, the technological scheme that the utility model adopts is:
A kind of free flow coupling with the inner tooth sleeve pipe, comprise connecting tube and insertion pipe, the internal diameter of described connecting tube is greater than the external diameter of described insertion pipe, the inboard tube wall of described connecting tube is provided with the first threaded joints, described insertion pipe is provided with the first groove, the second groove and the 3rd groove, be arranged with the seal ring that cross section is " N " shape in described the first groove, the both sides of described seal ring are respectively equipped with the first circular groove and the second circular groove, be embedded with round section joint ring in described the second groove, be provided with rotationally the outer tooth socket pipe on described the 3rd groove, the inboard tube wall of outer tooth socket pipe is provided with the second threaded joints.
Wherein, described joint intubate is provided with some helical teeth rings, and the external diameter of described helical teeth ring is reduced outward gradually by inner end.The true dip direction of the outside hypotenuse of described seal ring is consistent with the true dip direction of described helical teeth ring.Described the first circular groove becomes " V " shape with the cross section of described the second circular groove.The mouth of pipe place of described insertion pipe is provided with the flow-guiding mouth of taper.Described connecting tube is that the external frame cross section is regular hexagon.
After adopting technique scheme, the advantage that compared to the prior art the utility model had is:
Free flow coupling with the inner tooth sleeve pipe described in the utility model, the inboard tube wall of connecting tube is provided with the first threaded joints.This connecting tube with the free flow coupling of inner tooth sleeve pipe is spirally connected by the first threaded joints and pipeline, insertion pipe is provided with the first groove, the second groove and the 3rd groove, be arranged with the seal ring that cross section is " N " shape in described the first groove, the both sides of described seal ring are respectively equipped with the first circular groove and the second circular groove, outer end be the first circular groove, by inner end is the second circular groove, in the time of in insertion pipe is inserted in pipeline, the inwall of pipeline pushes described seal ring, seal ring is subject to lateral extrusion power and axial friction, make the second circular groove of described seal ring inwardly close up, the first circular groove of described seal ring a little outwards opens, be embedded with round section joint ring in described the second groove, be provided with rotationally the outer tooth socket pipe on described the 3rd groove, the inboard tube wall of outer tooth socket pipe is provided with the second threaded joints, insertion pipe is connected with fixing pipeline by the second threaded joints on the outer tooth socket pipe, it is connected firmly, good airproof performance, and easy to assembly, cost of production is lower.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Fig. 1: structural representation of the present utility model.
Fig. 2 is the local structure for amplifying schematic diagram in A place in Fig. 1.
In figure, 1: connecting tube; 2: the first threaded joints; 3: insertion pipe; 4: the first grooves; 5: seal ring; 6: the second grooves; 7: round section joint ring; 8: flow-guiding mouth; 9: the helical teeth ring; 10: the three grooves; 11: the outer tooth socket pipe; 12: the second threaded joints; 51: the first circular grooves; 52: the second circular grooves.
Embodiment
The following stated is only preferred embodiment of the present utility model, does not therefore limit protection domain of the present utility model.
Embodiment, see shown in Fig. 1 to Fig. 2: a kind of free flow coupling with the inner tooth sleeve pipe, comprise connecting tube 1 and insertion pipe 3, the internal diameter of described connecting tube 1 is greater than the external diameter of described insertion pipe 3, the inboard tube wall of described connecting tube 1 is provided with the first threaded joints 2, connecting tube 1 is spirally connected with pipeline by the first threaded joints 2, insertion pipe 3 is provided with the first groove 4, the second groove 6 and the 3rd groove 10, described the first groove 4 is positioned at the outside of described the second groove 6, the 3rd groove 10 is positioned at the inboard of the second groove 6, be arranged with the seal ring 5 that cross section is " N " shape in described the first groove 4, the both sides of described seal ring 5 are respectively equipped with the first circular groove 51 and the second circular groove 52, outer end be the first circular groove 51, by inner end is the second circular groove 52, when insertion pipe 3 is inserted in pipeline, the inwall of pipeline pushes described seal ring 5, seal ring 5 lateral extrusion power and axial frictions, make the second circular groove 52 of described seal ring 5 inwardly close up, the first circular groove 51 of described seal ring 5 a little outwards opens, be embedded with round section joint ring 7 in described the second groove 6, be provided with rotationally outer tooth socket pipe 11 on described the 3rd groove 10, the inboard tube wall of outer tooth socket pipe 11 is provided with the second threaded joints 12, insertion pipe 3 is connected with fixing pipeline by the second threaded joints 12 on outer tooth socket pipe 11, it is connected firmly, good airproof performance, and easy to assembly, cost of production is lower.
Wherein, described joint intubate is provided with some helical teeth rings 9, and the external diameter of described helical teeth ring 9 is reduced outward gradually by inner end.The true dip direction of the outside hypotenuse of described seal ring 5 is consistent with the true dip direction of described helical teeth ring 9.Described the first circular groove 51 becomes " V " shape with the cross section of described the second circular groove 52.The mouth of pipe place of described insertion pipe 3 is provided with the flow-guiding mouth 8 of taper.Connecting tube 1 is regular hexagon for the external frame cross section.

Claims (6)

1. the free flow coupling with the inner tooth sleeve pipe, comprise connecting tube (1) and insertion pipe (3), it is characterized in that: the internal diameter of described connecting tube (1) is greater than the external diameter of described insertion pipe (3), the inboard tube wall of described connecting tube (1) is provided with the first threaded joints (2), described insertion pipe (3) is provided with the first groove (4), the second groove (6) and the 3rd groove (10), be arranged with the seal ring (5) that cross section is " N " shape in described the first groove (4), the both sides of described seal ring (5) are respectively equipped with the first circular groove (51) and the second circular groove (52), be embedded with round section joint ring (7) in described the second groove (6), be provided with rotationally outer tooth socket pipe (11) on described the 3rd groove (10), the inboard tube wall of described outer tooth socket pipe (11) is provided with the second threaded joints (12).
2. the free flow coupling with the inner tooth sleeve pipe according to claim 1, it is characterized in that: described joint intubate is provided with some helical teeth rings (9), and the external diameter of described helical teeth ring (9) is reduced outward gradually by inner end.
3. the free flow coupling with the inner tooth sleeve pipe according to claim 2, it is characterized in that: the true dip direction of the outside hypotenuse of described seal ring (5) is consistent with the true dip direction of described helical teeth ring (9).
4. the free flow coupling with the inner tooth sleeve pipe according to claim 1, it is characterized in that: the cross section of described the first circular groove (51) and described the second circular groove (52) becomes " V " shape.
5. the free flow coupling with the inner tooth sleeve pipe according to claim 1, it is characterized in that: the mouth of pipe place of described insertion pipe (3) is provided with the flow-guiding mouth (8) of taper.
6. the free flow coupling with the inner tooth sleeve pipe according to claim 1, it is characterized in that: described connecting tube (1) is regular hexagon for the external frame cross section.
CN201320434354.8U 2013-07-22 2013-07-22 Straight pipe joint with inner tooth casing Expired - Fee Related CN203384519U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320434354.8U CN203384519U (en) 2013-07-22 2013-07-22 Straight pipe joint with inner tooth casing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320434354.8U CN203384519U (en) 2013-07-22 2013-07-22 Straight pipe joint with inner tooth casing

Publications (1)

Publication Number Publication Date
CN203384519U true CN203384519U (en) 2014-01-08

Family

ID=49873007

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320434354.8U Expired - Fee Related CN203384519U (en) 2013-07-22 2013-07-22 Straight pipe joint with inner tooth casing

Country Status (1)

Country Link
CN (1) CN203384519U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107210514A (en) * 2015-02-26 2017-09-26 华为技术有限公司 Mounting bracket

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107210514A (en) * 2015-02-26 2017-09-26 华为技术有限公司 Mounting bracket
CN107210514B (en) * 2015-02-26 2019-09-13 华为技术有限公司 Mounting bracket

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140108

Termination date: 20140722

EXPY Termination of patent right or utility model