CN202056452U - 90-DEG buckling-type pipe connector - Google Patents

90-DEG buckling-type pipe connector Download PDF

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Publication number
CN202056452U
CN202056452U CN2011201227476U CN201120122747U CN202056452U CN 202056452 U CN202056452 U CN 202056452U CN 2011201227476 U CN2011201227476 U CN 2011201227476U CN 201120122747 U CN201120122747 U CN 201120122747U CN 202056452 U CN202056452 U CN 202056452U
Authority
CN
China
Prior art keywords
butt end
threaded pipe
pipe butt
abutting end
threaded
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
CN2011201227476U
Other languages
Chinese (zh)
Inventor
陆颂荫
陆昱森
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 Donggang Fastener Manufacturing Co Ltd
Original Assignee
Ningbo Donggang Fastener 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 Ningbo Donggang Fastener Manufacturing Co Ltd filed Critical Ningbo Donggang Fastener Manufacturing Co Ltd
Priority to CN2011201227476U priority Critical patent/CN202056452U/en
Application granted granted Critical
Publication of CN202056452U publication Critical patent/CN202056452U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a 90-DEG buckling-type pipe connector which comprises a connector body (2) which is penetrated through by a through hole (1). The connector body (2) comprises a threaded pipe abutting end (3) and a flexible pipe abutting end (4); a screw cap (6) is sleeved on the threaded pipe abutting end (3); an included angel (beta) between an axial line of the threaded pipe abutting end (3) and an axial line of the flexible pipe abutting end (4) is 90 DEG; the position of an opening of the through hole (1) of the threaded pipe abutting end (3) is a conical surface (5); a radially convex annular bulge (9) is arranged on the outer circumference of the threaded pipe abutting end (3); an annular retaining ring (8) radially protrudes on the inner circumferential surface of a central hole of the screw cap (6) adjacent to a transitional elbow pipe (11); the contact surface of the retaining ring (8) and the annular bulge (9) forms an axial limiting surface of the both; and the screw cap (6) is pentagonal. The buckling-type pipe connector is not easy to slip and has good sealing effect.

Description

A kind of 90 ° of fastening-pressing type pipe joints
Technical field
The utility model relates to a kind of butt joint, specifically is a kind of 90 ° of fastening-pressing type pipe joints that are used for docking the hard threaded pipe of the flexible pipe of pipeline (as oil circuit, gas circuit, liquid road) system and equipment (as pump, valve).
Background technique
Traditional fastening-pressing type pipe joint comprises the joint body that is penetrated with through hole, one end of joint body is the threaded pipe butt end, the other end is the flexible pipe butt end, the activity of threaded pipe butt end is sheathed with a hexagonal nut along the axial limiting of joint body, the groove of the annular that directly concaves on the joint body.
When people are docked flexible pipe and threaded pipe with this fastening-pressing type pipe joint, use earlier the spanner rotary nut, make the outside thread of threaded pipe screw with the internal thread that is linked in the nut of threaded pipe butt end, and compressed seal ring between the end face of the end face of threaded pipe and threaded pipe butt end, again hose proof is combined in the flexible pipe butt end, flexible pipe is pressed in the groove of annular of joint body with clip then, like this, has just finished the installation of this fastening-pressing type pipe joint.
There is following defective in the fastening-pressing type pipe joint of prior art: because nut is hexagonal nut, in actual use, when screwing this nut with hexagon wrench, often skid easily; And the threaded pipe butt end is often undesirable with the sealing effect after threaded pipe docks.
The model utility content
The technical problems to be solved in the utility model is, provides to be difficult for skidding and a kind of 90 ° of fastening-pressing type pipe joints of good sealing effect.
Technical solution of the present utility model is, a kind of 90 ° of fastening-pressing type pipe joints with following structure are provided, it comprises the joint body that is penetrated with through hole, one end of joint body is the threaded pipe butt end, the other end is the flexible pipe butt end, the threaded pipe butt end is sheathed with a nut, be provided with the transition bend pipe between threaded pipe butt end and the flexible pipe butt end, angle between the axis of the axis of threaded pipe butt end and flexible pipe butt end is 90 °, the opening of the through hole of threaded pipe butt end is the conical surface, the angle of the axis of the bus of the conical surface and threaded pipe butt end is 23 °~25 °, the excircle of threaded pipe butt end is provided with the radially annular projection of evagination, the center hole of nut is by radially being protruding with the back-up ring of ring-type on the inner peripheral surface of transition bend pipe, the surface of contact of back-up ring and annular projection forms both axial limiting faces, and nut is the pentagon nut.
The surface of contact of back-up ring and annular projection forms both axial limiting faces, that is to say, back-up ring can be pushed against by the end face of annular projection near the transition bend pipe away from the end face of transition bend pipe, thereby make and to do away from the moving of transition bend pipe along the axial direction of threaded pipe butt end, but nut still can rotate along threaded pipe butt end circumferential direction with the nut of back-up ring one.
After adopting above structure, a kind of 90 ° of fastening-pressing type pipe joints of the utility model compared with prior art have the following advantages:
Because this nut is five jiaos, according to general knowledge as can be known, many more easy more the skidding of polygonal seamed edge, being that circle is the easiest as the infinite many limit polygonals of seamed edge in the polygonal skids, and compares spanner with interior hexagonal and rotates that hexagon nut is more convenient to be screwed, more be difficult for skidding so rotate five jiaos nut with interior five jiaos spanner; And the opening of the through hole of threaded pipe butt end is the conical surface, the seal ring between threaded pipe and threaded pipe butt end and the area of contact of threaded pipe butt end have been increased like this, strengthened sealing effect, and find in actual use, when the angle of the axis of the bus of the conical surface and threaded pipe butt end was 23 °~25 °, the sealing effect of threaded pipe butt end and threaded pipe butt joint was more satisfactory.
As improvement, the angle of the axis of the bus of the conical surface and threaded pipe butt end is 24 °, and like this, in actual use, the sealing effect of threaded pipe butt end and threaded pipe butt joint is desirable especially.
Description of drawings
Fig. 1 is the structural representation of facing of a kind of 90 ° of fastening-pressing type pipe joints of the utility model.
Fig. 2 is the sectional structure schematic representation of Fig. 1 along the A-A direction.
Shown in the figure
1, through hole, 2, joint body, 3, the threaded pipe butt end, 4, flexible pipe butt end, 5, the conical surface, 6, nut, 7, second groove, 8, back-up ring, 9, annular projection, 10, the awl tooth, 11, the transition bend pipe, the angle of the axis of the bus of a, the conical surface and threaded pipe butt end, the angle between the axis of β, threaded pipe butt end and the axis of flexible pipe butt end.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, a kind of 90 ° of fastening-pressing type pipe joints of the utility model, it comprises the joint body 2 that is penetrated with through hole 1.One end of joint body 2 is threaded pipe butt end 3, and the other end is flexible pipe butt end 4, and threaded pipe butt end 3 is sheathed with a nut 6.Be provided with transition bend pipe 11 between threaded pipe butt end 3 and the flexible pipe butt end 4, the angle β between the axis of the axis of threaded pipe butt end 3 and flexible pipe butt end 4 is 90 °.The opening of the through hole 1 of threaded pipe butt end 3 is the conical surface 5, and the angle a of the axis of the bus of the conical surface 5 and threaded pipe butt end 3 is 23 °~25 °, preferred 24 ° of the angle a of the bus of the conical surface 5 of present embodiment and the axis of threaded pipe butt end 3.The excircle of threaded pipe butt end 3 is provided with the radially annular projection 9 of evagination, and the center hole of nut 6 is by radially being protruding with the back-up ring 8 of ring-type on the inner peripheral surface of transition bend pipe 11, and the surface of contact of back-up ring 8 and annular projection 9 forms both axial limiting faces.Nut 6 is a pentagon nut 6.
Footpath second groove 7 that cooperates with the fixing clip of flexible pipe of being used for of annular that concaves on the flexible pipe butt end 4.The outer peripheral surface of flexible pipe butt end 4 is provided with the awl tooth 10 of the ring-type of a plurality of radially evaginations that abut one another, and the stub end of each awl tooth 10 like this, after hose proof is incorporated into flexible pipe butt end 4, under the effect of awl tooth 10, more is difficult for getting loose near transition bend pipe 11.

Claims (2)

1. 90 ° of fastening-pressing type pipe joints, it comprises the joint body (2) that is penetrated with through hole (1), one end of joint body (2) is threaded pipe butt end (3), the other end is flexible pipe butt end (4), threaded pipe butt end (3) is sheathed with a nut (6), it is characterized in that: be provided with transition bend pipe (11) between threaded pipe butt end (3) and flexible pipe butt end (4), angle (β) between the axis of the axis of threaded pipe butt end (3) and flexible pipe butt end (4) is 90 °, the opening of the through hole (1) of threaded pipe butt end (3) is the conical surface (5), the angle (a) of the axis of the bus of the conical surface (5) and threaded pipe butt end (3) is 23 °~25 °, the excircle of threaded pipe butt end (3) is provided with the radially annular projection of evagination (9), the center hole of nut (6) is by radially being protruding with the back-up ring (8) of ring-type on the inner peripheral surface of transition bend pipe (11), the surface of contact of back-up ring (8) and annular projection (9) forms both axial limiting faces, and nut (6) is pentagon nut (6).
2. a kind of 90 ° of fastening-pressing type pipe joints according to claim 1 is characterized in that: the angle (a) of the axis of the bus of the conical surface (5) and threaded pipe butt end (3) is 24 °.
CN2011201227476U 2011-04-15 2011-04-15 90-DEG buckling-type pipe connector Expired - Fee Related CN202056452U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201227476U CN202056452U (en) 2011-04-15 2011-04-15 90-DEG buckling-type pipe connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201227476U CN202056452U (en) 2011-04-15 2011-04-15 90-DEG buckling-type pipe connector

Publications (1)

Publication Number Publication Date
CN202056452U true CN202056452U (en) 2011-11-30

Family

ID=45016424

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201227476U Expired - Fee Related CN202056452U (en) 2011-04-15 2011-04-15 90-DEG buckling-type pipe connector

Country Status (1)

Country Link
CN (1) CN202056452U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104534217A (en) * 2015-01-08 2015-04-22 广西玉柴机器股份有限公司 Union elbow capable of being assembled with adjustable angle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104534217A (en) * 2015-01-08 2015-04-22 广西玉柴机器股份有限公司 Union elbow capable of being assembled with adjustable angle

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111130

Termination date: 20120415