CN214274831U - Exempt from to withhold polytetrafluoroethylene hose coupling - Google Patents
Exempt from to withhold polytetrafluoroethylene hose coupling Download PDFInfo
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- CN214274831U CN214274831U CN202022722606.XU CN202022722606U CN214274831U CN 214274831 U CN214274831 U CN 214274831U CN 202022722606 U CN202022722606 U CN 202022722606U CN 214274831 U CN214274831 U CN 214274831U
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- hose
- connector
- sleeve
- lip
- outer sleeve
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Abstract
The utility model provides a exempt from to detain and press polytetrafluoroethylene hose nipple, including connector and hose, the hose cover is established on the connector, the outside cover of hose is equipped with the outer sleeve, outer sleeve one end compresses tightly hose, the other end and connector releasable connection through the lip cover. The utility model arranges the hose extruding sleeve on the connector by arranging the outer sleeve and the lip sleeve, thereby improving the sealing reliability of the connection between the hose and the connector; the lip sleeve is embedded between the inner pipe and the outer pipe of the hose, when the inner pipe bears pressure, the inner pipe expands outwards, the sealing is more reliable, and the sealing performance is further improved; through outer sleeve and connector threaded connection for this hose nipple joint structure's easy dismounting, swift makes this connector just can realize being connected, sealed with the body with two spanners under the condition of no withholding equipment, and the hose that is particularly suitable for hydraulic pneumatic equipment such as armoured car, aircraft, engineering vehicle on field operations or field work environment is maintained at the fast assembly under.
Description
Technical Field
The utility model relates to a hose nipple technical field especially relates to a exempt from to withhold polytetrafluoroethylene hose coupling.
Background
The polytetrafluoroethylene hose is a basic component in the common hydraulic pneumatic field, is commonly used and mainly plays a role in transmitting hydraulic oil, fuel oil, gas and the like, so that the reliability and the stability have very important significance on the reliability of electromechanical products.
The connection structure of the joint of the polytetrafluoroethylene hose and the pipe body is more in forms, but the connection is mainly realized by plastic deformation pressure connection of a buckle sleeve, the sealing part is mainly arranged on the inner wall of the polytetrafluoroethylene inner pipe, and the sealing reliability of the polytetrafluoroethylene inner pipe is in a descending trend along with the improvement of pressure.
Disclosure of Invention
To foretell technical problem, the utility model provides a exempt from to withhold polytetrafluoroethylene hose nipple for solve the problem that the connection structure of polytetrafluoroethylene hose nipple and body among the prior art sealing performance descends easily when pressure is higher.
In order to achieve the above purpose, the technical solution of the present invention is realized as follows:
the utility model provides a exempt from to detain and press polytetrafluoroethylene hose nipple, includes connector and hose, the hose cover is established on the connector, the outside cover of hose is equipped with the outer sleeve, outer sleeve one end compresses tightly hose, the other end and connector releasable connection through the lip cover.
Further, the hose includes an inner tube and an outer tube, and the lip cover is embedded between the inner tube and the outer tube.
Furthermore, one end of the outer sleeve matched with the hose is provided with an inner conical surface attached to the outer wall of the outer pipe.
Furthermore, the outer side of the lip sleeve is provided with an outer conical surface attached to the inner wall of the outer tube, and the outer tube is tightly pressed on the outer conical surface of the lip sleeve through an inner conical surface of the outer sleeve.
Further, the outer sleeve is in threaded connection with the connecting head.
Furthermore, an annular boss is arranged on the connector, an external thread is arranged on the annular boss, and an internal thread matched with the annular boss is arranged on the outer sleeve.
Furthermore, one end of the lip sleeve, which is far away from the hose, is in abutting fit with the side surface of the annular boss.
Furthermore, one end of the connector, which is far away from the hose, is connected with an outer nut.
Further, the outer sleeve nut is in threaded connection with the connector.
Furthermore, a clamping ring is arranged between the outer sleeve nut and the connector.
The utility model has the advantages that: the utility model arranges the hose extruding sleeve on the connector by arranging the outer sleeve and the lip sleeve, thereby improving the sealing reliability of the connection between the hose and the connector; the lip sleeve is embedded between the inner pipe and the outer pipe of the hose, when the inner pipe bears pressure, the inner pipe expands outwards, the sealing is more reliable, and the sealing performance is further improved; through outer sleeve and connector threaded connection for this hose nipple joint structure's easy dismounting, swift makes this connector just can realize being connected, sealed with the body with two spanners under the condition of no withholding equipment, and the hose that is particularly suitable for hydraulic pneumatic equipment such as armoured car, aircraft, engineering vehicle on field operations or field work environment is maintained at the fast assembly under.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in figure 1, the buckling-free polytetrafluoroethylene hose joint of the utility model comprises a connector 3 and a hose 6, wherein the connector 3 is provided with a small end and a large end, the end part of the hose 6 is sleeved on the small end of the connector 3, the large end of the connector 3 is used as an external port for connecting external equipment or parts, an outer sleeve 5 is sleeved outside the end part of the hose 6 connected with the connector 3, one end of the outer sleeve 5 compresses the hose 6 through a lip sleeve 4, and the other end of the outer sleeve 5 is detachably connected with the connector 3; after the outer sleeve 5 is stably connected with the connector 3, the hose 6 is pressed on the small end of the connector 3 by the outer sleeve 5 and the lip sleeve 4, the purpose of tightly connecting the hose 6 and the connector 3 is achieved, the sealing reliability is improved through the lip sleeve 4 in the connection mode, the defect that the sealing performance of the hose connector is obviously reduced along with the improvement of pressure in the prior art is overcome, and the connector has the advantages of low cost and compact structure. The hose in this embodiment is a teflon hose, and in other embodiments, the hose may be another tube.
Further, as shown in fig. 1, the hose 6 includes an inner tube 61 and an outer tube 62, and the lip 4 is embedded between the inner tube 61 and the outer tube 62. Specifically, the lip cover 4 is an annular structure, one end of the lip cover 4 is sleeved on the small end of the connector 3, the other end of the lip cover 4 is provided with a sealing lip, the sealing lip is inserted between the inner pipe 61 and the outer pipe 62 and sleeved on the inner pipe 61 of the hose 6, namely, the end part of the inner pipe 61 is positioned between the sealing lip of the lip cover 4 and the small end of the connector 3, the end part of the outer pipe 62 is positioned between the sealing lip of the lip cover 4 and the outer sleeve 5, and the sealing lip of the lip cover 4 is embedded in the hose 6, so that the hose is used, when the inner pipe bears pressure, the inner pipe expands outwards, and because the sealing lip of the lip cover is outside the inner pipe, the inner pipe expands outwards, the sealing is more reliable, and the sealing performance is further improved. In this embodiment, the inner tube 61 is the polytetrafluoroethylene hose body, has the antistatic function, and the outer tube 62 is that the stainless steel wire is woven or the net cover of winding on the inner tube 61, produces static, punctures the inner tube or arouses the conflagration when can avoiding the medium to flow at a high speed.
Further, as shown in fig. 1, the end of the outer sleeve 5 that is engaged with the hose 6 is provided with an inner tapered surface that fits the outer wall of the outer tube 62, and the inner diameter of the inner tapered surface gradually increases from the hose 6 side to the connector 3 side, so that when the outer sleeve 5 is tightly connected with the connector 3, the outer sleeve 5 presses the hose 6 via the inner tapered surface.
Further, as shown in fig. 1, the outer side of the lip sleeve 4 is provided with an outer conical surface attached to the inner wall of the outer tube 62, that is, the outer side of the sealing lip is a conical surface, the inner diameter of the outer conical surface is gradually increased from one side of the hose 6 to one side of the connector 3, the outer tube 62 is pressed on the outer conical surface of the lip sleeve 4 through the inner conical surface of the outer sleeve 5, the inner side surface of the lip sleeve 4 is attached to the outer wall of the inner tube 61, and after the outer sleeve 5 is tightly connected with the connector 3, the extrusion force of the outer sleeve 5 is transmitted to the inner tube 62 through the lip sleeve 4 to further extrude the inner tube 62, so that the sealing performance between the inner tube 62 and the connector is further improved.
Further, as shown in fig. 1, the outer sleeve 5 is in threaded connection with the connector 3, so that the hose connector structure is convenient and quick to disassemble and assemble, the connector can be connected and sealed with the hose body by only two wrenches under the condition of no buckling equipment, and the hose connector is very suitable for quick assembly and maintenance of hoses on hydraulic and pneumatic equipment such as armored vehicles, airplanes and engineering vehicles in field operations or field operation environments.
Further, as shown in fig. 1, an annular boss 31 is provided on the connector 3, an external thread is provided on the annular boss 31, and an internal thread matched with the annular boss 31 is provided on the outer sleeve 5. In addition, the outer side of the outer sleeve 5 is provided with a hexagonal screwing part, so that the outer sleeve 5 is conveniently screwed on the connector 3, and the more tightly the outer sleeve 5 is screwed, the larger the extrusion force of the outer sleeve 5 on the hose 6 and the lip sleeve 4 is, and the better the sealing performance is.
Further, as shown in fig. 1, one end of the lip sleeve 4 away from the hose 6 abuts against the lateral root of the annular boss 31 to achieve a hard seal.
Further, as shown in fig. 1, an end of the connector 3 away from the hose 6, i.e. a large end of the connector 3, is connected with an outer nut 1 for connecting the connector 3 with other devices or components.
Further, as shown in fig. 1, the outer nut 1 is in threaded connection with the connector 3, specifically, the outer nut 1 is sleeved on the large end of the connector 3, the large end of the connector 3 is provided with an external thread, and the inner side of the outer nut 1 is provided with an internal thread matched with the external thread, so that the outer nut 1 and the connector 3 can be conveniently detached. When the connector 3 and the outer sleeve 5 are axially screwed, the outer tube 61 is tightly pressed outside the lip sleeve 4, and the lip sleeve 4 is caused to radially contract, and the sealing lip of the lip sleeve 4 is tightly pressed on the inner tube 61, so that radial sealing is realized. In addition, the middle part of the connector 3 is provided with a hexagonal screwing part protruding in the circumferential direction, so that the connector 3 can be relatively fixed when the outer sleeve nut 1 or the outer sleeve 5 is screwed.
Further, as shown in fig. 1, a snap ring 2 is further disposed between the outer nut 1 and the connector 3. Specifically, the big end outside of connector 3 is equipped with the annular groove, and snap ring 2 cover is established in this recess, and during cap nut 1 and connector 3, cap nut 1 extrudees snap ring 2 from outside inwards and improves and connect the compactness.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a exempt from to detain and press polytetrafluoroethylene hose coupling, its characterized in that, includes connector (3) and hose (6), hose (6) cover is established on connector (3), the outside cover of hose (6) is equipped with outer sleeve (5), outer sleeve (5) one end is passed through lip cover (4) and is compressed tightly hose (6), the other end and connector (3) releasable connection.
2. The crimp-free polytetrafluoroethylene hose coupling according to claim 1, wherein said hose (6) comprises an inner tube (61) and an outer tube (62), said lip sleeve (4) being embedded between said inner tube (61) and said outer tube (62).
3. The crimp-free polytetrafluoroethylene hose coupling according to claim 2, wherein the end of said outer sleeve (5) engaging the hose (6) is provided with an internal taper fitting the outer wall of the outer tube (62).
4. The crimp-free polytetrafluoroethylene hose connector according to claim 3, wherein an outer conical surface attached to an inner wall of the outer tube (62) is arranged on the outer side of the lip sleeve (4), and the outer tube (62) is pressed against the outer conical surface of the lip sleeve (4) through an inner conical surface of the outer sleeve (5).
5. The free-crimping polytetrafluoroethylene hose joint according to any one of claims 1-4, wherein the outer sleeve (5) is in threaded connection with the connector (3).
6. The free-buckling polytetrafluoroethylene hose joint according to claim 5, wherein an annular boss (31) is arranged on the connector (3), an external thread is arranged on the annular boss (31), and an internal thread matched with the annular boss (31) is arranged on the outer sleeve (5).
7. The free-crimping polytetrafluoroethylene hose joint according to claim 6, wherein one end of the lip sleeve (4) away from the hose (6) is in abutting fit with the side surface of the annular boss (31).
8. The crimp-free polytetrafluoroethylene hose connector according to claim 1 or 7, wherein an outer nut (1) is connected to one end of the connector (3) far away from the hose (6).
9. The free-crimping polytetrafluoroethylene hose coupling according to claim 8, wherein said outer nut (1) is threadedly connected to said connector (3).
10. The free-buckling polytetrafluoroethylene hose joint according to claim 9, wherein a snap ring (2) is further arranged between the outer sleeve nut (1) and the connector (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022722606.XU CN214274831U (en) | 2020-11-23 | 2020-11-23 | Exempt from to withhold polytetrafluoroethylene hose coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022722606.XU CN214274831U (en) | 2020-11-23 | 2020-11-23 | Exempt from to withhold polytetrafluoroethylene hose coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214274831U true CN214274831U (en) | 2021-09-24 |
Family
ID=77776562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022722606.XU Active CN214274831U (en) | 2020-11-23 | 2020-11-23 | Exempt from to withhold polytetrafluoroethylene hose coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214274831U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704695A (en) * | 2022-02-28 | 2022-07-05 | 芜湖骏航机电科技有限公司 | Rolling connection type lip-shaped sealing joint |
-
2020
- 2020-11-23 CN CN202022722606.XU patent/CN214274831U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704695A (en) * | 2022-02-28 | 2022-07-05 | 芜湖骏航机电科技有限公司 | Rolling connection type lip-shaped sealing joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HENAN AEROSPACE PRECISION MACHINING Co.,Ltd. Assignor: HENAN AEROSPACE HYDRAULIC AND PNEUMATIC TECHNOLOGY Co.,Ltd. Contract record no.: X2022980000460 Denomination of utility model: A pressure free polytetrafluoroethylene hose connector Granted publication date: 20210924 License type: Common License Record date: 20220112 |
|
| EE01 | Entry into force of recordation of patent licensing contract |