CN201651645U - Telescopic joint - Google Patents

Telescopic joint Download PDF

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Publication number
CN201651645U
CN201651645U CN2010201405661U CN201020140566U CN201651645U CN 201651645 U CN201651645 U CN 201651645U CN 2010201405661 U CN2010201405661 U CN 2010201405661U CN 201020140566 U CN201020140566 U CN 201020140566U CN 201651645 U CN201651645 U CN 201651645U
Authority
CN
China
Prior art keywords
joint
groove
seal ring
core
nut
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
CN2010201405661U
Other languages
Chinese (zh)
Inventor
张建均
黄剑
王志勇
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.)
Yonggao Co Ltd
Original Assignee
Yonggao 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 Yonggao Co Ltd filed Critical Yonggao Co Ltd
Priority to CN2010201405661U priority Critical patent/CN201651645U/en
Application granted granted Critical
Publication of CN201651645U publication Critical patent/CN201651645U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model relates to a telescopic joint, which comprises a screw cap, a joint body and a joint core sliding along the inner wall of the joint body. A position limiting step is arranged on the inner wall at the position limiting end of the joint body, a convex ring matched with the position limiting step is arranged at the sliding end of the joint core, a seal groove is formed on the convex ring, a joint core seal ring is arranged inside the seal groove, the joint core seal ring is sealed with the inner wall of the joint body, a groove is formed at the opening edge of the screw cap, a screw cap seal ring is arranged inside the groove, the screw cap seal ring is sealed with the socket joint end of the joint body, the outer wall of the groove is connected with the external threads of the socket joint end, and the inner wall of the groove is extended into the socket joint end to form another position limiting step of the joint core. The telescopic joint is characterized in that the groove is formed at the opening edge of the screw cap, and the screw cap seal ring is arranged inside the groove and is sealed with the socket joint end of the joint body. Because the screw cap seal ring is clamped by the inner wall and the outer wall of the groove, the screw cap seal ring can not fall out easily. Compared with the prior art, the telescopic joint provided by the utility model has better sealing effect.

Description

Slip joint
Technical field
The utility model relates to a kind of slip joint, is used for the connection that long distance is carried plastic water pipe, belongs to the pipe fitting technical field.
Background technique
Simple in structure, the low cost of manufacture of plastic tube commonly used at present, therefore be widely used, and plastic tube is as the delivery line of long distance the time, need couple together by slip joint a lot of pipelines is sectional, and this seal request to slip joint is higher.Existing slip joint commonly used comprises nut, joint body and the joint core that slides along joint body inwall, described nut mouth is along being shaped on L type step, step wall is connected with the socket end outside thread of joint body, step layout setting nut seal ring, the nut seal ring seals mutually with the socket port edge of joint body, but there is shortcoming in this sealing mechanism: because of the step interface is a plane structure, therefore nut seal ring disposed thereon slides easily and comes off, when especially external temperature is higher, nut and the elongation of joint body expanded by heating cause the extruding force of nut seal ring is strengthened, the nut seal ring is easier be extruded the mouth that breaks away from the socket end along and slip joint is leaked.
Summary of the invention
The purpose of this utility model is in order to overcome the shortcoming of prior art, prevents that the nut seal ring from coming off and reaches the slip joint of better sealing effect thereby provide a kind of.
The technological scheme that the utility model adopted is to achieve the above object of the invention:
Slip joint, comprise nut, joint body and the joint core that slides along joint body inwall, the positive stop end inwall of described joint body is shaped on limited step, the sliding end of joint core is shaped on the bulge loop that matches with limited step, be shaped on seal groove on the bulge loop, joint core seal ring is installed in the seal groove, joint core seal ring seals mutually with joint body inwall, it is characterized in that described nut mouth is along being shaped on groove, the nut seal ring is set in the groove, the nut seal ring seals mutually with the socket port edge of joint body, and the outer wall of described groove is connected with socket end outside thread, and the groove inwall stretches into another limited step that constitutes the joint core in the socket end.
The utility model relates to a kind of slip joint, comprise nut, joint body and the joint core that slides along joint body inwall, be characterized in being that described nut mouth is along being shaped on groove, the nut seal ring placed in the groove and with the socket port of joint body along sealing mutually, because the nut seal ring is clamped by the inside and outside wall of groove, so be not easy to come off, so this slip joint compared with prior art has advantage of good sealing effect.
The described sealing mechanism that is made of bulge loop, seal groove and joint core seal ring is 2-3, adopts multi-sealedly, plays the effect of enhanced leaktightness effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model relates to a kind of slip joint, as shown in Figure 1, comprise nut 1, joint body 3 and the joint core 5 that slides along joint body 3 inwalls, positive stop end 32 inwalls of described joint body 3 are shaped on limited step 31, the sliding end 53 of joint core 5 is shaped on the bulge loop 52 that matches with limited step 31, be shaped on seal groove 51 on the bulge loop 52, joint core seal ring 4 is installed in the seal groove 51, joint core seal ring 4 seals mutually with joint body 3 inwalls, it is characterized in that 1 mouthful of edge of described nut is shaped on groove 11, nut seal ring 2 is set in the groove 11, nut seal ring 2 seals mutually with 33 mouthfuls of edges of socket end of joint body 3, the outer wall 12 of described groove is connected with socket end 33 outside threads, and groove inwall 13 stretches into another limited step that constitutes joint core 5 in the socket end 33; Characteristics of the present utility model are to be that 1 mouthful of edge of described nut is shaped on groove 11, nut seal ring 2 placed in the groove 11 and with 33 mouthfuls of edges of socket end of joint body 3 seal mutually, because nut seal ring 2 is clamped by the inside and outside wall of groove, so be not easy to come off, so this slip joint compared with prior art has advantage of good sealing effect.The described sealing mechanism that is made of bulge loop 52, seal groove 51 and joint core seal ring 4 is 2-3, adopts multi-sealedly, plays the effect of enhanced leaktightness effect.

Claims (2)

1. slip joint, comprise nut (1), joint body (3) and the joint core (5) that slides along joint body (3) inwall, positive stop end (32) inwall of described joint body (3) is shaped on limited step (31), the sliding end (53) of joint core (5) is shaped on the bulge loop (52) that matches with limited step (31), be shaped on seal groove (51) on the bulge loop (52), joint core seal ring (4) is installed in the seal groove (51), described joint core seal ring (4) seals mutually with joint body (3) inwall, it is characterized in that described nut (a 1) mouthful edge is shaped on groove (11), nut seal ring (2) is set in the groove (11), nut seal ring (2) seals mutually with socket end (33) mouthful edge of joint body (3), the outer wall of described groove (12) is connected with socket end (33) outside thread, and groove inwall (13) stretches into another limited step that constitutes joint core (5) in the socket end (33).
2. slip joint according to claim 1 is characterized in that the described sealing mechanism that is made of bulge loop (52), seal groove (51) and joint core seal ring (4) is 2-3.
CN2010201405661U 2010-03-20 2010-03-20 Telescopic joint Expired - Fee Related CN201651645U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201405661U CN201651645U (en) 2010-03-20 2010-03-20 Telescopic joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201405661U CN201651645U (en) 2010-03-20 2010-03-20 Telescopic joint

Publications (1)

Publication Number Publication Date
CN201651645U true CN201651645U (en) 2010-11-24

Family

ID=43116885

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010201405661U Expired - Fee Related CN201651645U (en) 2010-03-20 2010-03-20 Telescopic joint

Country Status (1)

Country Link
CN (1) CN201651645U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106038124A (en) * 2016-07-12 2016-10-26 天津市鑫成新科贸有限公司 Lifting pedal plates of wheelchair
WO2021232684A1 (en) * 2020-05-20 2021-11-25 江苏狼博管件制造有限公司 Pipeline interface socket and receptacle structure convenient for installation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106038124A (en) * 2016-07-12 2016-10-26 天津市鑫成新科贸有限公司 Lifting pedal plates of wheelchair
WO2021232684A1 (en) * 2020-05-20 2021-11-25 江苏狼博管件制造有限公司 Pipeline interface socket and receptacle structure convenient for installation

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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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101124

Termination date: 20190320