CN210218966U - Flaring type pipe joint - Google Patents
Flaring type pipe joint Download PDFInfo
- Publication number
- CN210218966U CN210218966U CN201920635318.5U CN201920635318U CN210218966U CN 210218966 U CN210218966 U CN 210218966U CN 201920635318 U CN201920635318 U CN 201920635318U CN 210218966 U CN210218966 U CN 210218966U
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- Prior art keywords
- joint
- nut
- core
- joint core
- sealing
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- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 230000000903 blocking effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 239000002184 metal Substances 0.000 description 7
- 239000012530 fluid Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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Abstract
本实用新型公开一种扩口式管接头，包括接头、接头芯和螺母；接头和接头芯之间通过螺母连接；接头与接头芯连接的一侧的表面设置有锥面一；螺母的内部一侧开有螺纹，内部另一侧开有卡接凹槽；卡接凹槽的一侧连接有伸出部；接头的一端与螺母螺纹连接，接头芯头端部的侧面开有锥面二；锥面二设置有密封槽；密封槽内连接有O型密封圈。球面密封改锥面密封，易于加工方便测量；在所述的接头芯头端部的设置有密封槽，在密封槽内连接有O型密封圈；实现刚性与弹性相结合的双密封；在接头上与接头芯连接的一端螺纹表面的一侧设置有阻流体，可有效防止从锥面泄露出来的少许油从接头与螺母连接位置漏出。
The utility model discloses a flared pipe joint, which comprises a joint, a joint core and a nut; the joint and the joint core are connected by a nut; the surface of the side where the joint is connected with the joint core is provided with a tapered surface; There is a thread on the side, and a clamping groove is opened on the other inner side; one side of the clamping groove is connected with a protruding part; one end of the joint is threadedly connected with the nut, and the side of the end of the joint core head is provided with a taper surface two; The second cone surface is provided with a sealing groove; an O-type sealing ring is connected in the sealing groove. Spherical sealing screwdriver surface sealing, easy to process and convenient to measure; a sealing groove is arranged at the end of the joint core head, and an O-type sealing ring is connected in the sealing groove; a double seal combining rigidity and elasticity is realized; One side of the threaded surface connected with the joint core is provided with a bluff body, which can effectively prevent a little oil leaking from the cone surface from leaking from the joint between the joint and the nut.
Description
Technical Field
The utility model relates to a flared pipe joint belongs to hydraulic pressure pipeline sealing system technical field.
Background
The sealing form of 74-degree cone flaring and spherical surface matching is widely used in the industry, and has the advantages that the joint of the metal pipe joint does not need to be welded, oxide skin is not generated, the sealing form can be directly used in a hydraulic pipeline system after deformation in a cold pressing mode, and the phenomenon of oil leakage still can occur. Through analysis: it was found that the sealing principle has certain drawbacks. However, although the product is supplied to the customer strictly according to the customer's requirements, the metal steel seal has the following disadvantages in the use process, and the sealing purpose is difficult to achieve because the metal steel seal only makes linear contact with the conical surface seal. CN201710474173.0 this patent adopts the outer sleeve nut outside the conduit to screw with the thread of the pipe joint, squeeze the hydraulic seal ring on the 74 ° conical surface of the pipe joint, make it deform and flow, fill up the tiny gap when the conduit and the pipe joint are sealed with metal, and seal the end face with liquid glue, solve the leakage brought by shape error and higher surface roughness in the metal seal, and then realized the reliable seal of the pipe joint and the conduit, the protection of this patent is focused on using an improvement of metal seal in the prior art, seal through adopting liquid glue, the patent does not change the original national standard joint design, only improved the reliability, the working pressure that can bear does not improve, the metal sphere lathing at the same time, increased the processing difficulty, and difficult measurement. The manufacturing precision of the male and female joint parts is difficult to reach an ideal state. In order to achieve the sealing effect in the assembling process, the joint piece is often violently assembled, so that the joint piece generates severe plastic deformation, and if the joint leakage occurs, the whole set of related pipeline parts must be completely replaced.
SUMMERY OF THE UTILITY MODEL
To the problem that above-mentioned prior art exists, the utility model provides a flared formula coupling for solve between connector and the joint core because the circular easy oil leak's of leakproofness problem.
In order to realize the purpose, the utility model discloses a technical scheme is: a flared tube joint comprises a joint, a joint core and a nut; the joint is connected with the joint core through a nut; threads are arranged on two sides of the joint, a through hole is formed in the center of the joint, and a first conical surface is arranged on the surface of one side, connected with the joint core, of the joint; the joint core comprises a joint core head end part matched with the conical surface I at one end of the joint, a clamping part positioned on one side of the joint core head end part and a joint core tail end part connected with the clamping part; one side of the interior of the nut is provided with threads, and the other side of the interior of the nut is provided with a clamping groove; one side of the clamping groove is connected with a protruding part used for clamping the end part of the joint core head of the joint core; one end of the joint is in threaded connection with the nut; the tail end of the joint core passes through the inner hole of the nut,
the side surface of the end part of the joint core head is provided with a second conical surface; the second conical surface is provided with a sealing groove; an O-shaped sealing ring is connected in the sealing groove; the joint core on the joint portion be connected with the extension joint that sets up in the nut.
Preferably, the end part of the joint core head, the clamping part and the end part of the joint core tail are integrally connected.
Preferably, a sealing gasket is arranged in the clamping groove.
Preferably, one side of the threaded surface at one end of the joint connected with the joint core is provided with a flow blocking body; the shape of the flow blocking body is circular ring shape, and the flow blocking body is fixedly connected on the joint.
The utility model has the advantages that: the screwdriver with the spherical sealing surface is sealed, so that the screwdriver is easy to process and convenient to measure; a sealing groove is arranged at the end part of the joint core print, and an O-shaped sealing ring is connected in the sealing groove; the double seal combining rigidity and elasticity is realized, the oil in and out can be effectively prevented from flowing out from the conical surface between the joint and the joint core, and the sealing property is enhanced; one side of the threaded surface at one end connected with the joint core on the joint is provided with a choke body, one side surface of the group fluid is tightly connected with one side surface of the nut, and a small amount of oil leaked from the conical surface can be effectively prevented from leaking from the joint position of the joint and the nut. Through the improvement, the structure of the flared pipe joint is simple, the performance is good, and the processing and the use are convenient, and meanwhile, the conclusion that the allowable pressure of the flared pipe joint in the industry of mechanical design handbook is generally 3.5-16 MPa is expanded to the 35MPa high-pressure system without failure in long-term use.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic cross-sectional view of the structure of the present invention;
FIG. 4 is an exploded view of the structure of the present invention;
fig. 5 is a schematic view of a joint structure of the present invention;
FIG. 6 is a schematic view of the structure of the joint core of the present invention;
fig. 7 is a schematic view of the nut structure of the present invention.
In the figure: 1. the connector comprises a connector body, 1-1 parts of a first conical surface, 2 parts of a connector core, 2-1 parts of a second conical surface, 2-2 parts of a second conical surface, 2-3 parts of a head end of the connector core, 2-4 parts of a clamping part, a tail end of the connector core, 3 parts of a nut, 3-1 parts of a clamping groove, 3-2 parts of an extending part, 4 parts of a sealing groove, 5 parts of an O-shaped sealing ring, 6 parts of a sealing gasket, 7 parts of a flow blocking body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.
As shown in fig. 1, 2, 3, 4, 5, 6 and 7, a flared tube joint includes a joint 1, a joint core 2 and a nut 3; the joint 1 is connected with the joint core 2 through a nut 3; threads are arranged on two sides of the joint 1, a through hole is formed in the center of the joint 1, and a conical surface I1-1 is arranged on the surface of one side, connected with the joint core 2, of the joint 1; the joint core 2 comprises a joint core head end part 2-2 with a conical surface I1-1 matched with one end of the joint 1, a clamping part 2-3 positioned on one side of the joint core head end part 2-2 and a joint core tail end part 2-4 connected with the clamping part 2-3; one side of the interior of the nut 3 is provided with threads, and the other side of the interior of the nut 3 is provided with a clamping groove 3-1; one side of the clamping groove 3-1 is connected with a protrusion 3-2 for clamping the end part 2-2 of the joint core 2; one end of the joint 1 is in threaded connection with the nut 3; the tail end part 2-4 of the joint core 2 passes through the inner hole of the nut 3,
the side surface of the end part 2-2 of the joint core print is provided with a second conical surface 2-1; the conical surface II 2-1 is provided with a sealing groove 4; an O-shaped sealing ring 5 is connected in the sealing groove 4; a clamping part 2-3 on the joint core 2 is connected with an extension part 3-2 arranged in the nut 3 in a clamping way, a sealing groove 4 is arranged at the end part 2-2 of the joint core head, and an O-shaped sealing ring 5 is connected in the sealing groove 4; the double seal of combining rigidity and elasticity is realized, the outflow of oil from the conical surface between joint 1 and joint core 2 can be effectively prevented, and the leakproofness is enhanced.
The joint core head end part 2-2, the clamping part 2-3 and the joint core tail end part 2-4 are integrally connected.
A sealing gasket 6 is arranged in the clamping groove 3-1; the sealing gasket 6 is an elastic circular ring body.
A flow blocking body 7 is arranged on one side of the threaded surface at one end of the joint 1 connected with the joint core 2; the shape of the flow blocking body 7 is circular, the flow blocking body 7 is fixedly connected to the joint 1, one side surface of the group fluid 7 is tightly connected with one side surface of the nut 3, and a small amount of oil leaked from the conical surface can be effectively prevented from leaking from the joint and nut connecting position.
The installation sequence is as follows: firstly, an O-shaped sealing ring 5 is placed in a sealing groove 4 positioned on the joint core head end part 2-2 of the joint core 2, and then the joint core tail end part 2-4 of the joint core 2 extends into an inner hole of the nut 3 until a clamping part 2-3 in the center of the joint core 2 is tightly connected with an extending part 3-2 arranged in the nut 3 in a clamping way; the sealing gasket 6 is arranged in the clamping groove 3-1, and because the sealing gasket 6 is an elastic body, when the joint core 2 is arranged in the nut 3, the sealing gasket 6 is elastically arranged in the clamping groove 3-1, and most of the sealing gasket is provided with a conical surface II 2-1, one end of the joint 1 provided with the conical surface I1-1 is aligned with the end part 2-2 of the joint core 2, and the sealing gasket is tightly connected with one end of the nut 3 with threads. Finally, a flow blocking body 7 is arranged on one side of the surface of the thread at one end of the joint 1, which is connected with the joint core 2; the choke body 7 is in a ring shape, the choke body 7 is fixedly connected to the joint 1, one side surface of the fluid 7 is tightly connected with one side surface of the nut 3, and a small amount of oil leaked from the conical surface can be effectively prevented from leaking from the joint and nut connection position.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (4)
1. A flared pipe joint is characterized by comprising a joint (1), a joint core (2) and a nut (3); the joint (1) is connected with the joint core (2) through a nut (3); threads are arranged on two sides of the joint (1), a through hole is formed in the center of the joint (1), and a conical surface I (1-1) is arranged on the surface of one side, connected with the joint core (2), of the joint (1); the joint core (2) comprises a joint core head end part (2-2) which is provided with a conical surface I (1-1) matched with one end of the joint (1), a clamping part (2-3) positioned on one side of the joint core head end part (2-2) and a joint core tail end part (2-4) connected with the clamping part (2-3); one side of the interior of the nut (3) is provided with a thread, and the other side of the interior of the nut is provided with a clamping groove (3-1); one side of the clamping groove (3-1) is connected with a protruding part (3-2) for clamping the joint core head end part (2-2) of the joint core (2); one end of the joint (1) is in threaded connection with the nut (3); the tail end part (2-4) of the joint core (2) passes through the inner hole of the nut (3),
the side surface of the end part (2-2) of the joint core print is provided with a second conical surface (2-1); the second conical surface (2-1) is provided with a sealing groove (4); an O-shaped sealing ring (5) is connected in the sealing groove (4); the joint core (2) is provided with a clamping part (2-3) which is connected with an extending part (3-2) arranged in the nut (3) in a clamping way.
2. The flared tube fitting of claim 1, wherein the fitting core head end portion (2-2), the snap-fit portion (2-3), and the fitting core tail end portion (2-4) are integrally connected.
3. A flared tube fitting according to claim 1, wherein a sealing gasket (6) is provided in the snap-fit recess (3-1); the sealing gasket (6) is an elastic circular ring body.
4. A flared tube fitting according to claim 1, wherein a bluff body (7) is provided on the fitting (1) on the side of the threaded surface at the end connected to the nut (3); the shape of the flow blocking body (7) is circular, the flow blocking body (7) is fixedly connected to the joint (1), and the surface of one side of the flow blocking body (7) is tightly connected with the vertical surface of one side of the nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920635318.5U CN210218966U (en) | 2019-05-06 | 2019-05-06 | Flaring type pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920635318.5U CN210218966U (en) | 2019-05-06 | 2019-05-06 | Flaring type pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210218966U true CN210218966U (en) | 2020-03-31 |
Family
ID=69924921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920635318.5U Expired - Fee Related CN210218966U (en) | 2019-05-06 | 2019-05-06 | Flaring type pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210218966U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112323868A (en) * | 2020-11-03 | 2021-02-05 | 北京顺义建筑企业集团公司 | Novel grouting machine |
| CN115854026A (en) * | 2022-11-29 | 2023-03-28 | 信阳航力航空设备有限公司 | A grooved cone sealing structure |
-
2019
- 2019-05-06 CN CN201920635318.5U patent/CN210218966U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112323868A (en) * | 2020-11-03 | 2021-02-05 | 北京顺义建筑企业集团公司 | Novel grouting machine |
| CN115854026A (en) * | 2022-11-29 | 2023-03-28 | 信阳航力航空设备有限公司 | A grooved cone sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200331 |