CN204025969U - Pipe couplings - Google Patents

Pipe couplings Download PDF

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Publication number
CN204025969U
CN204025969U CN201420374958.2U CN201420374958U CN204025969U CN 204025969 U CN204025969 U CN 204025969U CN 201420374958 U CN201420374958 U CN 201420374958U CN 204025969 U CN204025969 U CN 204025969U
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CN
China
Prior art keywords
joint
pipe joint
pipe
external splines
sealing cone
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
CN201420374958.2U
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Chinese (zh)
Inventor
俞天波
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.)
YONGDA HOLDING CO Ltd
Original Assignee
YONGDA HOLDING 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 YONGDA HOLDING CO Ltd filed Critical YONGDA HOLDING CO Ltd
Priority to CN201420374958.2U priority Critical patent/CN204025969U/en
Application granted granted Critical
Publication of CN204025969U publication Critical patent/CN204025969U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to technical field of pipeline connection, particularly relates to a kind of Pipe couplings.It solve the technical problems such as prior art sealing difference.Comprise the first body, second body and pipe joint, external splines is provided with in pipe joint one end, one end inwall of the first body is provided with the internal spline matched with described external splines, one end that pipe joint is provided with external splines inserts in the first body and internal spline engage connected with external splines, axial positioning structure is provided with between pipe joint and the first body, tubular joint is provided with away from one end of external splines at pipe joint, the one end being provided with tubular joint at pipe joint is provided with outer ring sealing cone, one end of second body is set on the tubular joint of pipe joint, second body establishes female one end to be resisted against on circular orientation face, annular sealing cone in the second body is established female one end to be provided with to match with outer ring sealing cone, the utility model advantage is: the good and good airproof performance of connective stability.

Description

Pipe couplings
Technical field
The utility model belongs to technical field of pipeline connection, particularly relates to a kind of Pipe couplings.
Background technique
For the ease of the connection of pipeline, between two pipelines, a pipe joint can be set usually, pipe joint plays important connection function on pipeline connects, and the specification of pipe joint has bipass joint, the equal-specification such as three-way union and union cross, no matter the pipe joint of which kind of structure, the joint of itself and pipeline needs good sealing, secondly, for the ease of dismounting, it needs good linkage structure when connecting with pipeline or be separated, install after connecting and not only need sealing, but also need certain structural strength, in order to sealing and the join strength of dismounting efficiency and joint can be improved, for this reason, people have carried out long-term exploration, propose solution miscellaneous.
Such as, Chinese patent literature discloses a kind of pipe joint [application number: 200820014298.1], and it is hole grafting one seal ring in the one or both ends of flexible pipe, and flexible pipe is set with nut, and flexible pipe inserts the endoporus of nut, rotary nut, nut check; In addition, such as, Chinese patent literature also discloses a kind of pipe joint, [application number: 200620089850.4], this pipe joint adopts NITI alloy to be that pipe joint body made by base material, the wall thickness of pipe joint body is 1MM ~ 3MM, and this inside and outside of pipe joint is smooth structure, and the caliber of its bore and connected tube adapts.The internal diameter of pipe joint body is that within the scope of Φ 5 ~ 98MM, length is within the scope of 8 ~ 190MM;
Above-mentioned scheme improves the subproblem of prior art to a certain extent, but, also at least there is following defect in this two schemes: designs unreasonable, when being connected with pipeline or joint being removed, joint is not easy to assemble and efficiency is low, in addition, and the loaded down with trivial details and poor stability of the axial restraint mode between pipeline and joint, secondly, the sealing of joint is poor.
Model utility content
The purpose of this utility model is for the problems referred to above, provides a kind of joint structural strength high and the Pipe couplings of good airproof performance.
For achieving the above object, the utility model have employed following technical proposal: this Pipe couplings comprises the first body and the second body, pipe joint is provided with between the first body and the second body, external splines is provided with in pipe joint one end, one end inwall of the first body is provided with the internal spline matched with described external splines, one end that described pipe joint is provided with external splines inserts in the first body and internal spline engage connected with external splines, the axial positioning structure that can make the relative first body axial restraint of pipe joint is provided with between pipe joint and the first body, be provided with away from one end of external splines the tubular joint be connected as a single entity structure with pipe joint at pipe joint, the external diameter of tubular joint is less than the external diameter of pipe joint and forms circular orientation face between tubular joint and pipe joint, the one end being provided with tubular joint at pipe joint is provided with outer ring sealing cone, one end of second body is set on the tubular joint of pipe joint, outside thread is provided with at tubular joint outer wall, one end inwall be set on tubular joint at the second body is provided with internal thread, described outside thread is connected with internal thread screw thread, second body establishes female one end to be resisted against on circular orientation face, annular sealing cone in the second body is established female one end to be provided with to match with described outer ring sealing cone, sealing configuration is provided with outside between the ring packing conical surface and interior annular sealing cone.
In this application, be provided with the structure that external splines is meshed with internal spline and can improve dismounting efficiency, the structural strength of joint can also be improved simultaneously, ensure the stability of joint; It can ensure stability and the fixing of axial restraint between pipe joint and the first body to be provided with axial positioning structure; Be provided with circular orientation face and can improve packaging efficiency, be provided with the sealing that outer ring sealing cone and interior annular sealing cone combined structure, the outside thread structure connected with internal thread screw thread can ensure joint, namely dual sealing, certainly, be also provided with sealing configuration between the ring packing conical surface and interior annular sealing cone outside and can ensure sealing further.
In above-mentioned Pipe couplings, described axial positioning structure comprises the circular groove being arranged on external splines the inner and the C shape fastening hoop be located in circular groove, one end of C shape fastening hoop is fixed on the bottom land of circular groove, the other end is unsettled, and the C shape fastening hoop sidepiece described in when the first body is set in pipe joint is resisted against on the inwall of the first body.The axial restraint mode of this structure not only structure is simple, and easy to operate and axial restraint is firm.
In above-mentioned Pipe couplings, the dual-side of described C shape fastening hoop is respectively equipped with outer chamfering.This structure can be convenient to dismounting, ensures dismounting efficiency.
In above-mentioned Pipe couplings, described sealing configuration comprises and is arranged on annular positioning groove on outer ring sealing cone and is arranged in annular positioning groove and seals with interior annular sealing cone the O-ring seal be connected.The bore at annular positioning groove notch place is less than the internal diameter of annular positioning groove, and the diameter of described O-ring seal lateral cross section is greater than the bore at annular positioning groove notch place, and this structure can improve sealing further.
In above-mentioned Pipe couplings, the thickness of described C shape fastening hoop is less than the groove depth of circular groove.
In above-mentioned Pipe couplings, described C shape fastening hoop outer surface is provided with some grooves arranged along its width direction.This structure can reduce area of contact during dismounting, ensures dismounting efficiency.
Compared with prior art, the advantage of this Pipe couplings is: 1, design is more reasonable, is provided with the structure that external splines is meshed with internal spline and can improves dismounting efficiency, can also improve the structural strength of joint, the stability of guarantee joint simultaneously; It can ensure stability and the fixing of axial restraint between pipe joint and the first body to be provided with axial positioning structure; Be provided with circular orientation face and can improve packaging efficiency, be provided with the sealing that outer ring sealing cone and interior annular sealing cone combined structure, the outside thread structure connected with internal thread screw thread can ensure joint, namely dual sealing, certainly, be also provided with sealing configuration between the ring packing conical surface and interior annular sealing cone outside and can ensure sealing further; 2, structure is simple and practical.
Accompanying drawing explanation
Fig. 1 is the detonation configuration schematic diagram that the utility model provides.
Fig. 2 is the C shape fastening hoop structural representation that the utility model provides.
In figure, the first body 1, internal spline 11, second body 2, internal thread 21, interior annular sealing cone 22, pipe joint 3, circular orientation face 3a, external splines 31, outer ring sealing cone 32, circular groove 33, annular positioning groove 34, O-ring seal 35, tubular joint 4, outside thread 41, C shape fastening hoop 5, outer chamfering 51, groove 52.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
As shown in Figure 1-2, this Pipe couplings comprises the first body 1 and the second body 2, pipe joint 3 is provided with between the first body 1 and the second body 2, external splines 31 is provided with in pipe joint 3 one end, one end inwall of the first body 1 is provided with the internal spline 11 matched with described external splines 31, one end that described pipe joint 3 is provided with external splines 31 inserts in the first body 1 and internal spline 11 engage connected with external splines 31, the axial positioning structure that can make relative first body 1 axial restraint of pipe joint 3 is provided with between pipe joint 3 and the first body 1, concrete, here axial positioning structure comprises the circular groove 33 being arranged on external splines 31 the inner and the C shape fastening hoop 5 be located in circular groove 33, for the ease of dismounting, outer chamfering 51 is respectively equipped with at the dual-side of C shape fastening hoop 5, one end of C shape fastening hoop 5 is fixed on the bottom land of circular groove 33, the other end is unsettled, C shape fastening hoop 5 sidepiece described in when the first body 1 is set in pipe joint 3 is resisted against on the inwall of the first body 1,
Be provided with away from one end of external splines 31 the tubular joint 4 be connected as a single entity structure with pipe joint 3 at pipe joint 3, the external diameter of tubular joint 4 is less than the external diameter of pipe joint 3 and between tubular joint 4 and pipe joint 3, forms circular orientation face 3a, the one end being provided with tubular joint 4 at pipe joint 3 is provided with outer ring sealing cone 32, one end of second body 2 is set on the tubular joint 4 of pipe joint 3, outside thread 41 is provided with at tubular joint 4 outer wall, one end inwall be set on tubular joint 4 at the second body 2 is provided with internal thread 21, described outside thread 41 is connected with internal thread 21 screw thread, one end that second body 2 is provided with internal thread 21 is resisted against on the 3a of circular orientation face, one end that the second body 2 is provided with internal thread 21 be provided with to match with described outer ring sealing cone 32 in annular sealing cone 22, sealing configuration is provided with outside between the ring packing conical surface 32 and interior annular sealing cone 22.
Optimized project, the sealing configuration of the present embodiment comprises and is arranged on annular positioning groove 34 on outer ring sealing cone 32 and is arranged in annular positioning groove 34 and seals with interior annular sealing cone 22 O-ring seal 35 be connected;
Optimized project, the thickness of the C shape fastening hoop 5 of the present embodiment is less than the groove depth of circular groove 33; In order to ensure dismounting efficiency, be provided with some grooves 52 arranged along its width direction at C shape fastening hoop 5 outer surface.
In the present embodiment, be provided with the structure that external splines is meshed with internal spline and can improve dismounting efficiency, the structural strength of joint can also be improved simultaneously, ensure the stability of joint; It can ensure stability and the fixing of axial restraint between pipe joint and the first body to be provided with axial positioning structure; Be provided with circular orientation face and can improve packaging efficiency, be provided with the sealing that outer ring sealing cone and interior annular sealing cone combined structure, the outside thread structure connected with internal thread screw thread can ensure joint, namely dual sealing, certainly, be also provided with sealing configuration between the ring packing conical surface and interior annular sealing cone outside and can ensure sealing further.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as the first body 1, internal spline 11, second body 2, internal thread 21, interior annular sealing cone 22, pipe joint 3, circular orientation face 3a, external splines 31, outer ring sealing cone 32, circular groove 33, annular positioning groove 34, O-ring seal 35, tubular joint 4, outside thread 41, C shape fastening hoop 5, outer chamfering 51, groove 52 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.

Claims (6)

1. a Pipe couplings, comprise the first body (1) and the second body (2), pipe joint (3) is provided with between the first body (1) and the second body (2), it is characterized in that, described pipe joint (3) one end is provided with external splines (31), one end inwall of the first body (1) is provided with the internal spline (11) matched with described external splines (31), one end that described pipe joint (3) is provided with external splines (31) inserts in the first body (1) and internal spline (11) engages connected with external splines (31), the axial positioning structure that can make pipe joint (3) relative first body (1) axial restraint is provided with between pipe joint (3) and the first body (1), be provided with away from one end of external splines (31) the tubular joint (4) be connected as a single entity structure with pipe joint (3) at pipe joint (3), the external diameter of tubular joint (4) is less than the external diameter of pipe joint (3) and forms circular orientation face (3a) between tubular joint (4) and pipe joint (3), the one end being provided with tubular joint (4) at pipe joint (3) is provided with outer ring sealing cone (32), one end of second body (2) is set on the tubular joint (4) of pipe joint (3), outside thread (41) is provided with at tubular joint (4) outer wall, internal thread (21) is provided with at the second body (2) one end inwall be set on tubular joint (4), described outside thread (41) is connected with internal thread (21) screw thread, one end that second body (2) is provided with internal thread (21) is resisted against on circular orientation face (3a), the one end being provided with internal thread (21) at the second body (2) is provided with the interior annular sealing cone (22) matched with described outer ring sealing cone (32), sealing configuration is provided with outside between the ring packing conical surface (32) and interior annular sealing cone (22).
2. Pipe couplings according to claim 1, it is characterized in that, described axial positioning structure comprises the C shape fastening hoop (5) being arranged on the inner circular groove (33) of external splines (31) and being located in circular groove (33), one end of C shape fastening hoop (5) is fixed on the bottom land of circular groove (33), the other end is unsettled, and C shape fastening hoop (5) sidepiece described in when the first body (1) is set in pipe joint (3) is resisted against on the inwall of the first body (1).
3. Pipe couplings according to claim 2, is characterized in that, the dual-side of described C shape fastening hoop (5) is respectively equipped with outer chamfering (51).
4. the Pipe couplings according to claim 1 or 2 or 3, it is characterized in that, described sealing configuration comprises and is arranged on annular positioning groove (34) on outer ring sealing cone (32) and is arranged in annular positioning groove (34) and seals with interior annular sealing cone (22) O-ring seal (35) be connected.
5. the Pipe couplings according to Claims 2 or 3, is characterized in that, the thickness of described C shape fastening hoop (5) is less than the groove depth of circular groove (33).
6. Pipe couplings according to claim 5, is characterized in that, described C shape fastening hoop (5) outer surface is provided with some grooves (52) arranged along its width direction.
CN201420374958.2U 2014-07-08 2014-07-08 Pipe couplings Expired - Fee Related CN204025969U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420374958.2U CN204025969U (en) 2014-07-08 2014-07-08 Pipe couplings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420374958.2U CN204025969U (en) 2014-07-08 2014-07-08 Pipe couplings

Publications (1)

Publication Number Publication Date
CN204025969U true CN204025969U (en) 2014-12-17

Family

ID=52065833

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420374958.2U Expired - Fee Related CN204025969U (en) 2014-07-08 2014-07-08 Pipe couplings

Country Status (1)

Country Link
CN (1) CN204025969U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110856642A (en) * 2018-08-24 2020-03-03 青岛海尔洗碗机有限公司 Dish washer spray set and dish washer
CN111946914A (en) * 2020-07-31 2020-11-17 天长市康弘石油管材有限公司 Petroleum pipe and connecting clamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110856642A (en) * 2018-08-24 2020-03-03 青岛海尔洗碗机有限公司 Dish washer spray set and dish washer
CN111946914A (en) * 2020-07-31 2020-11-17 天长市康弘石油管材有限公司 Petroleum pipe and connecting clamp

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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: 20141217

Termination date: 20160708