CN216843515U - High leakproofness coupling - Google Patents

High leakproofness coupling Download PDF

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Publication number
CN216843515U
CN216843515U CN202220566703.0U CN202220566703U CN216843515U CN 216843515 U CN216843515 U CN 216843515U CN 202220566703 U CN202220566703 U CN 202220566703U CN 216843515 U CN216843515 U CN 216843515U
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CN
China
Prior art keywords
pipe joint
sealing
ring
pipe
extrusion ring
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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.)
Active
Application number
CN202220566703.0U
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Chinese (zh)
Inventor
郑新君
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.)
Zhejiang Yezhen Industrial Co ltd
Original Assignee
Zhejiang Yezhen Industrial 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 Zhejiang Yezhen Industrial Co ltd filed Critical Zhejiang Yezhen Industrial Co ltd
Priority to CN202220566703.0U priority Critical patent/CN216843515U/en
Application granted granted Critical
Publication of CN216843515U publication Critical patent/CN216843515U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a high leakproofness coupling belongs to and connects technical field. It has solved when current coupling is connected with hose spare, and the leakproofness is low, leads to the problem of easy leakage. This high leakproofness coupling, including the coupling body, the both ends of coupling body are connects the pipe end, connect and all be provided with sealing washer one in the pipe end, connect and all be provided with in the pipe end and supply the hose spare to insert and to the sealed takeover cover that corresponding sealing washer one compresses tightly, sealed takeover cover comprises pipe box main part and the extrusion ring that is fixed in pipe box main part front end and stretches into in the pipe end, the extrusion ring is fixed to bond in pipe box main part front end, the line type groove that sets up of a plurality of interval is seted up along its perisporium on the extrusion ring, it can the outer elasticity expansion portion that expands to lie in between the double-phase adjacent line type groove on the extrusion ring, the outer end department of elasticity expansion portion perisporium has the bellied book edge of outside extension. The utility model has the advantages of improve hose spare and connect the leakproofness, improve the result of use.

Description

High leakproofness coupling
Technical Field
The utility model belongs to the technical field of connect, a coupling is related to, in particular to high leakproofness coupling.
Background
A pipe joint is a part for connecting a pipe line or mounting a pipe line to a hydraulic component in a hydraulic system, and is a generic name of a connecting member that can be attached and detached in a fluid passage. However, in connection of the hose fitting, the sealing performance of the existing pipe joint and the hose fitting after connection is low, liquid is easy to leak, resource waste is caused, and the using effect of the pipe joint is also influenced.
Disclosure of Invention
The utility model aims at the above-mentioned problem that exists among the prior art, provide one kind and improve hose spare and connect the leakproofness, improve the high leakproofness coupling of result of use.
The purpose of the utility model can be realized by the following technical proposal: a high-sealing pipe joint comprises a pipe joint body and is characterized in that two ends of the pipe joint body are pipe joint ends, a first sealing ring is arranged in each pipe joint end, a sealing pipe joint sleeve for connecting a hose piece and pressing the corresponding sealing ring is arranged in each pipe joint end, each sealing pipe joint sleeve comprises a pipe sleeve main body and an extrusion ring which is fixed at the front end of the pipe sleeve main body and extends into the corresponding pipe joint end, each extrusion ring is fixedly bonded at the front end of the pipe sleeve main body, the longitudinal section of each extrusion ring is in a frustum shape, one end of each extrusion ring with a large outer diameter is fixedly bonded with the pipe sleeve main body, a plurality of line-shaped grooves which are arranged at intervals are formed in each extrusion ring along the peripheral wall of each extrusion ring, an elastic expansion part capable of expanding outwards is formed between two adjacent line-shaped grooves, and a convex curling edge extending outwards is arranged at the outer end of the peripheral wall of each elastic expansion part, the first sealing ring is sleeved on the elastic expansion part in a sealing mode and wraps the linear grooves in a sealing mode, and a pressing groove for the rolling edge to stretch into and press tightly is formed in the inner ring of the first sealing ring in the radial direction.
In the above pipe joint with high sealing performance, an elastic metal sheet is fixedly embedded in each elastic expansion portion.
In the high-tightness pipe joint, the sealing connecting pipe sleeve and the pipe joint body are integrally formed.
In the above high-sealability pipe joint, the socket main body is connected with the pipe joint body by a screw thread.
In the above pipe joint with high sealing performance, a plurality of sealing rings ii for sealing are arranged between the elastic expansion part and the pipe joint body and behind the sealing ring i.
In the above high-sealability pipe joint, the rear end of the extrusion ring is provided with a positioning ring which axially protrudes outwards, and the front end of the pipe sleeve main body is provided with a positioning groove for positioning and connecting the positioning ring.
In the above high-sealability pipe joint, the front end of the linear groove is a branched groove.
Compared with the prior art, the high-tightness pipe joint has the advantages of preventing liquid from leaking, improving tightness and improving the overall use effect.
Drawings
Fig. 1 is a schematic perspective view of the high-sealability pipe joint according to the present invention.
Fig. 2 is a schematic sectional view of the high-sealability pipe joint according to the present invention.
Fig. 3 is an enlarged schematic view of a portion a of fig. 2.
In the figure, 1, a pipe joint body; 2. pipe end connection; 3. a first sealing ring; 4. a sleeve body; 5. an extrusion ring; 6. a linear groove; 7. an elastic expansion portion; 8. edge rolling; 9. a compaction groove; 10. a resilient metal sheet; 11. a second sealing ring; 12. a positioning ring; 13. and a branching groove.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, 2 and 3, the high-sealing pipe joint comprises a pipe joint body 1, wherein both ends of the pipe joint body 1 are pipe joint ends 2, a first sealing ring 3 is arranged in each pipe joint end 2, a sealing pipe sleeve for connecting a hose piece and pressing the corresponding first sealing ring 3 is arranged in each pipe joint end 2, each sealing pipe sleeve comprises a pipe sleeve main body 4 and a pressing ring 5 which is fixed at the front end of the pipe sleeve main body 4 and extends into the pipe joint end 2, the pressing ring 5 is fixedly bonded at the front end of the pipe sleeve main body 4, the longitudinal section of the pressing ring 5 is in a frustum shape, one end of the pressing ring 5 with a large outer diameter is fixedly bonded with the pipe sleeve main body 4, a plurality of linear grooves 6 which are arranged at intervals are arranged on the circumferential wall of the pressing ring 5, an elastic expansion part 7 which can expand outwards is formed between the outer ends 6 of the two adjacent linear grooves on the pressing ring 5, a rolling edge 8 which extends outwards is arranged at the circumferential wall of the elastic expansion part 7, the first sealing ring 3 is hermetically sleeved on the elastic expansion part 7 and hermetically wraps the linear grooves 6, and a pressing groove 9 for the rolling edge 8 to stretch into and press is radially formed in the inner ring of the first sealing ring 3.
In more detail, an elastic metal sheet 10 is fixedly embedded in each elastic expansion portion 7, and is used for increasing the elastic strength and strengthening the elastic support for the first sealing ring 3.
The sealing pipe sleeve and the pipe joint body 1 are butted in the following two ways:
preferably, the sealing connecting pipe sleeve and the pipe joint body 1 are integrally formed; the socket main body 4 is connected with the pipe joint body 1 through threads.
In more detail, a plurality of sealing rings two 11 for sealing are arranged between the elastic expansion part 7 and the pipe joint body 1 and behind the sealing ring one 3, in order to further enhance the sealing performance and prevent liquid from leaking through the linear groove 6, therefore, a plurality of layers of sealing rings two 11 are additionally arranged, and the sealing rings two 11 are also subjected to a certain extrusion effect of the elastic expansion part 7.
When the hose piece extends into the sealing connecting pipe sleeve to be contacted with the elastic expansion part 7, the elastic expansion part 7 expands outwards under the support of the elastic metal sheet 10, and then the sealing ring I3 is extruded, so that the outer peripheral surface of the sealing ring I3 is in sealing contact with the inner peripheral wall of the pipe joint body 1, and the sealing effect is achieved; meanwhile, the second sealing ring 11 is also subjected to a certain extrusion force, and the effect of sealing contact with the pipe joint body 1 is achieved, so that the sealing performance is further improved, and liquid is prevented from leaking.
In a further elaboration, the rear end of the extrusion ring 5 is provided with a positioning ring 12 protruding outwards in the axial direction, the front end of the pipe sleeve main body 4 is provided with a positioning groove for positioning and connecting the positioning ring 12, the extrusion ring 5 is positioned and connected onto the pipe sleeve main body 4 through the matching of the positioning ring 12 and the positioning groove, and the extrusion ring 5 is fixed through a fixing and bonding mode to form an integrated sealing pipe connecting sleeve structure.
More specifically, the front end of the linear groove 6 is a branched groove 13, which facilitates the outward expansion movement of the elastic expansion portion 7.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (7)

1. The high-sealing-performance pipe joint comprises a pipe joint body (1) and is characterized in that two ends of the pipe joint body (1) are pipe joint ends (2), a first sealing ring (3) is arranged in each pipe joint end (2), a sealing pipe sleeve which is used for connecting a hose piece and compressing the corresponding first sealing ring (3) is arranged in each pipe joint end (2), each sealing pipe sleeve comprises a pipe sleeve main body (4) and an extrusion ring (5) which is fixed at the front end of the pipe sleeve main body (4) and extends into the pipe joint end (2), the extrusion ring (5) is fixedly bonded at the front end of the pipe sleeve main body (4), the longitudinal section of the extrusion ring (5) is in a frustum shape, one end with large outer diameter of the extrusion ring (5) is fixedly bonded with the pipe sleeve main body (4), and the extrusion ring (5) is provided with a plurality of linear grooves (6) which are arranged at intervals along the peripheral wall of the extrusion ring (5), the extrusion ring (5) is provided with an elastic expansion part (7) which can be expanded outwards and is positioned between two adjacent linear grooves (6), the outer end of the peripheral wall of the elastic expansion part (7) is provided with a rolling edge (8) which extends outwards to form a bulge, the sealing ring I (3) is hermetically sleeved on the elastic expansion part (7) and hermetically wraps the linear grooves (6), and the inner ring of the sealing ring I (3) is radially provided with a compression groove (9) for the rolling edge (8) to extend into and compress.
2. The high-sealability pipe joint according to claim 1, wherein each of the elastic expansion portions (7) has an elastic metal sheet (10) fixedly embedded therein.
3. The high-sealability pipe joint of claim 1, wherein the sealing sleeve is formed integrally with the pipe joint body (1).
4. The high-sealability pipe joint according to claim 1, wherein the socket main body (4) is connected with the pipe joint body (1) by threads.
5. The high-tightness pipe joint according to claim 1, wherein a plurality of sealing rings (11) for sealing are arranged between the elastic expansion part (7) and the pipe joint body (1) and behind the sealing ring I (3).
6. The high-sealability pipe joint according to claim 1, wherein the rear end of the extrusion ring (5) is provided with an axially outwardly protruding positioning ring (12), and the front end of the pipe sleeve body (4) is provided with a positioning groove for positioning and connecting the positioning ring (12).
7. The high-sealability pipe joint according to claim 1, wherein the front end of the linear groove (6) is a branched groove (13).
CN202220566703.0U 2022-03-15 2022-03-15 High leakproofness coupling Active CN216843515U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220566703.0U CN216843515U (en) 2022-03-15 2022-03-15 High leakproofness coupling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220566703.0U CN216843515U (en) 2022-03-15 2022-03-15 High leakproofness coupling

Publications (1)

Publication Number Publication Date
CN216843515U true CN216843515U (en) 2022-06-28

Family

ID=82096376

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220566703.0U Active CN216843515U (en) 2022-03-15 2022-03-15 High leakproofness coupling

Country Status (1)

Country Link
CN (1) CN216843515U (en)

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