CN110778826A - Buckling type hose connector - Google Patents
Buckling type hose connector Download PDFInfo
- Publication number
- CN110778826A CN110778826A CN201910915226.7A CN201910915226A CN110778826A CN 110778826 A CN110778826 A CN 110778826A CN 201910915226 A CN201910915226 A CN 201910915226A CN 110778826 A CN110778826 A CN 110778826A
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- CN
- China
- Prior art keywords
- annular
- hose
- tube
- inner tube
- protrusions
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/34—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with bonding obtained by vulcanisation, gluing, melting, or the like
Abstract
The invention discloses a buckling and pressing type hose connector. Including inner tube (2) that has connecting portion (1), especially outer tube (3) front end and the front end fixed connection of inner tube (2), form an annular cavity between inside and outside pipe (2, 3), the internal wall of outer tube (3) has a plurality of annular arch (4), the surface front end of inner tube (2) has a plurality of annular outer protruding (5) and rear end has a plurality of cyclic annular pawl (6), the height that highly is less than cyclic annular outer protruding (5) of a plurality of cyclic annular pawl (6). The clamping force of the hose clamp on the hose is greatly improved, the production cost is greatly reduced compared with a common high-pressure hose assembly, and the process steps are simplified.
Description
The technical field is as follows:
the present invention relates to a joint of hose for conveying liquid, in particular, it is a fastening type metal joint for end portion of hose.
Background art:
the metal joint at the end part of the buckling-pressing type hose is a joint commonly used for conveying high-pressure liquid, and the general structure of the joint is that an inner pipe is provided with a connecting part, an outer pipe is sleeved outside the inner pipe and the outer pipe, annular inverted teeth are arranged on opposite wall surfaces of the inner pipe and the outer pipe, and the hose is clamped by the inner pipe and the outer pipe after the outer pipe is radially deformed by applying pressure to the outer pipe, so that the connection between the hose and the metal joint. When the hose is subjected to external tensile force, the clamped hose is subjected to axial deformation and radial deformation, and the radial deformation can generate a gap between the hose and the inner pipe and the outer pipe of the metal joint, so that liquid leakage can be generated, the biting force and the friction force between the hose and the inner pipe and the outer pipe can be reduced, the hose is easy to separate from the metal joint, and serious accidents can be caused, even serious accidents of personal injury can occur. Therefore, overcoming the above-mentioned drawbacks of the prior art is a problem that is urgently to be solved by the industry or petroleum industry.
The invention content is as follows:
the invention aims to disclose a buckling-pressing type metal joint which has strong occluding force on a hose and can improve frictional resistance, so that the leakage prevention and the connection strength of a hose assembly are greatly improved.
The technical solution for realizing the invention is as follows: including the inner tube that has connecting portion, the key is the front end fixed connection of outer tube front end and inner tube, forms an annular cavity between inside and outside tube, and the internal face of outer tube has a plurality of annular archs, and the surface front end of inner tube has a plurality of annular outer archs and rear end to have a plurality of annular pawl, and the height of a plurality of annular pawl is less than annular outer bellied height.
The diameters of the annular outer bulges of the inner pipe are larger than the inner diameter of the hose, and the diameters of the annular bulges of the outer pipe are smaller than the outer diameter of the hose.
The annular outer bulges at the front end of the inner pipe are 3-8 and are arranged in a staggered manner with the corresponding annular bulges of the outer pipe.
The heights of the annular outer bulges of the inner pipe are gradually increased from the rear end to the front end, and/or the heights of the annular bulges of the outer pipe corresponding to the annular outer bulges with gradually increased heights are gradually increased from the rear end to the front end.
Among the plurality of annular outer bulges of the inner pipe, the height of the annular outer bulge adjacent to the annular inverted tooth is greater than that of the annular outer bulge adjacent to the other side of the annular outer bulge.
The rear end of the inner pipe is provided with an extension section with the length larger than that of the outer pipe.
The side wall of the outer pipe is provided with at least one through hole.
The metal joint disclosed by the invention is unique and simple in structural design, so that the clamping force of the metal joint to a hose is greatly improved, the resistance to the deformation and the separation of the hose from the metal joint is greatly improved, meanwhile, a new design is made on a detailed structure, the constraint of the buckling and pressing type hose joint to the hose is greatly improved, finally, the performances of leakage prevention, tensile resistance and the like of a hose assembly are excellent, meanwhile, the comprehensive performance of the buckling and pressing type hose assembly reaches the performance of a high-pressure hose, the production cost is greatly reduced compared with the common high-pressure hose assembly, and the process steps are simplified.
Description of the drawings:
FIG. 1 is a schematic sectional view of the inner tube of the present invention.
Fig. 2 is a schematic cross-sectional view of the outer tube according to the present invention.
Fig. 3 is a schematic sectional view of the assembled inner and outer tubes and hose of the present invention.
The specific implementation mode is as follows:
detailed description of the preferred embodimentsthe detailed description of the specific embodiments of the present invention will be given in conjunction with the accompanying drawings, and it should be noted that the detailed description of the embodiments is given for comprehensive understanding of the technical spirit of the present invention and should not be construed as limiting the scope of the claims of the present invention.
Referring to fig. 1 to 3, a technical solution of an embodiment of the present invention is: the inner pipe comprises an inner pipe 2 with a connecting part 1, the key is that the front end of the outer pipe 3 is fixedly connected or in threaded connection with the front end of the inner pipe 2, an annular cavity is formed between the inner pipe and the outer pipe (2 and 3), a plurality of annular bulges 4 are arranged on the inner wall surface of the outer pipe 3, a plurality of annular outer bulges 5 are arranged at the front end of the outer surface of the inner pipe 2, a plurality of annular inverted teeth 6 are arranged at the rear end of the outer surface of the inner pipe 2, and the heights of the annular inverted teeth 6 are smaller than the heights of the annular outer bulges; in the above technical solution, a hose (shown in fig. 3) is inserted into an annular cavity formed between the inner and outer pipes (2, 3) during actual use, and when a pressure is applied to the outer surface of the outer pipe 3, the outer pipe 3 is entirely shrunk in the axial direction, and finally the inner and outer pipes (2, 3) tightly clamp the hose, so that the tight connection between the metal joint and the hose forms a hose assembly. The annular projections 4 on the inner wall of the outer tube 3 press against the outer surface of the hose to form a portion between them, or a continuous convex-concave surface is formed between the inner pipe and the outer pipe, a plurality of annular outer bulges 5 and annular inverted teeth 6 of the inner pipe 2 and the inner surface of the hose form a continuous convex-concave surface and a continuous tooth-shaped surface which are embedded with each other, the contact surfaces of the hose and the inner and outer pipes (2, 3) form a resistance surface for preventing the hose from displacing when being stretched by external force, because the inner surface and the outer surface of the hose are provided with the resistance surfaces with different structures, the metal joint and the hose are tightly connected, the connection strength is high, the sealing effect is good, and because the outer pipe 3 is buckled and deformed to realize the connection of the metal joint and the hose, the preparation process is greatly simplified, the preparation cost is greatly reduced, and the compression resistance, the tensile resistance and the leakage resistance reach or exceed the performance of the existing high-pressure hose.
In order to further increase the connection strength between the inner and outer pipes (2, 3) of the metal joint and the hose, the diameters of the plurality of annular outer protrusions 5 of the inner pipe 2 are larger than the inner diameter of the hose, and the diameters of the annular protrusions 4 of the outer pipe 3 are smaller than the outer diameter of the hose (shown in fig. 3); the pressure-resistant and stretch-resistant medium-high pressure hose used in actual engineering is generally structured by a supporting layer with wound steel wires, and rubber layers are arranged on the inner side and the outer side of the supporting layer, so that the annular outer protrusions 5 and the annular protrusions 4 of the inner pipe (2) and the outer pipe (3) of the structure are respectively in snap fit with the supporting layer of the hose, that is, when the metal joint and the hose used in mutual fit are actually used, the rubber layers on the inner surface and the outer surface of the corresponding end part of the hose are needed to be peeled off (shown in figure 3), which can increase the snap-in force between the inner pipe (2) and the outer pipe (3) and the hose, and increase the resistance of the hose to be.
The annular outer bulges 5 at the front end of the inner pipe 2 are 3-8 and are arranged in a staggered mode with the corresponding annular bulges 4 of the outer pipe 3, and each annular outer bulge 5 corresponds to a concave part between the two annular bulges 4 on the outer pipe 3, so that a supporting layer of the hose forms more bending or bending parts, when the hose is stretched by external force, the resistance of the hose to be separated from the inner pipe (2) and the outer pipe (3) is larger, and more bending or bending parts of the hose are beneficial to leakage prevention.
In order to further increase the clamping force between the metal joint and the hose, the heights of the plurality of annular outer protrusions 5 of the inner tube 2 from the rear end to the front end are increased progressively, and/or the heights of the plurality of annular protrusions 4 on the outer tube 3 corresponding to the plurality of annular outer protrusions 5 with the increased heights from the rear end to the front end are increased progressively; when the metal joint is connected with the hose, the resistance of the resistance surface formed between the clamped hose and the inner and outer pipes (2 and 3) is increased by the structure, namely the clamping force of the metal joint on the hose is increased, and the tensile resistance of the hose assembly is improved.
Among the plurality of annular outer protrusions 5 of the inner tube 2, the height of the annular outer protrusion 5 adjacent to the annular inverted tooth 6 is greater than the height of the annular outer protrusion 5 adjacent to the other side (not shown in the figure); the annular outer protrusion 5 and the corresponding annular protrusion 4 on the outer tube 3 form a narrower space therebetween, and when the hose is subjected to an external tensile force, the difficulty of the hose at the front end of the narrow space passing through the narrow space is increased, that is, the narrow space forms a new resistance surface or resistance ring for the displacement of the hose.
When the hose assembly is in actual use, the hose inevitably swings, vibrates or is greatly bent, and radial force generated by the conditions is easily applied between the outer surface of the hose and the rear end head part of the outer pipe 3, so that a gap or local separation is generated between the hose and the port of the outer pipe 3, and the adverse effect is generated on the sealing performance between the hose and a metal joint, therefore, the rear end of the inner pipe 2 is provided with an extension section 7 with the length being larger than that of the outer pipe 3, the action position of action force generated by swinging, vibration or bending of the hose is transferred to the end part of the extension section 7 of the inner pipe 2, the defects are avoided, and the liquid leakage is prevented.
The side wall of the outer pipe 3 is provided with at least one through hole 8, after the metal joint shown in fig. 3 is assembled with the hose, the outer pipe 3 can be directly buckled and pressed to enable the outer pipe 3 to deform, and high-strength adhesive can be injected through the through hole 8 before buckling and pressing, or high-strength adhesive can be injected through the through hole 8 under pressure after buckling and pressing, so that the connection strength of the metal joint and the hose can be further increased.
Claims (7)
1. The utility model provides a withhold formula hose nipple, including inner tube (2) that have connecting portion (1), the front end fixed connection of its characterized in that outer tube (3) front end and inner tube (2), form an annular cavity between interior, outer tube (2, 3), the internal face of outer tube (3) has a plurality of annular arch (4), the surface front end of inner tube (2) has a plurality of annular outer arch (5) and rear end to have a plurality of cyclic annular pawl (6), the height that highly is less than annular outer arch (5) of a plurality of cyclic annular pawl (6).
2. The snap-fit hose connector according to claim 1, wherein the diameter of the annular outer protrusion (5) of the inner tube (2) is larger than the inner diameter of the hose, and the diameter of the annular protrusion (4) of the outer tube (3) is smaller than the outer diameter of the hose.
3. The buckling type hose connector according to claim 1 or 2, wherein the number of the annular outer protrusions (5) at the front end of the inner pipe (2) is 3-8, and the annular outer protrusions are arranged in a staggered manner with the corresponding annular protrusions (4) of the outer pipe (3).
4. The snap-fit hose connector according to claim 3, wherein the height of the plurality of annular outer protrusions (5) of the inner tube (2) increases from the rear end toward the front end, and/or the height of the plurality of annular protrusions (4) of the outer tube (3) corresponding to the plurality of annular outer protrusions (5) having an increasing height increases from the rear end toward the front end.
5. The buckle-type hose connector according to claim 4, wherein the height of the annular outer protrusion (5) adjacent to the annular inverted tooth (6) among the plurality of annular outer protrusions (5) of the inner tube (2) is greater than the height of the annular outer protrusion (5) adjacent to the other side thereof.
6. The snap-on hose connector according to claim 5, characterized in that the rear end of the inner tube (2) has an extension (7) having a length greater than the length of the outer tube (3).
7. The snap-fit hose connector according to claim 6, wherein the outer tube (3) is provided with at least one through hole (8) in its side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910915226.7A CN110778826A (en) | 2019-09-25 | 2019-09-25 | Buckling type hose connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910915226.7A CN110778826A (en) | 2019-09-25 | 2019-09-25 | Buckling type hose connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110778826A true CN110778826A (en) | 2020-02-11 |
Family
ID=69384770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910915226.7A Pending CN110778826A (en) | 2019-09-25 | 2019-09-25 | Buckling type hose connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110778826A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210012U (en) * | 1986-12-13 | 1988-02-10 | 沈阳第四橡胶厂 | Special rubber pipe assembly for dissolved acetylene |
| CN2828513Y (en) * | 2005-11-02 | 2006-10-18 | 芜湖双翼液压件制造公司 | Wire wrapped superhigh-pressure hose assembly |
| CN201273404Y (en) * | 2008-08-07 | 2009-07-15 | 中橡集团沈阳橡胶研究设计院 | Large-diameter high-pressure rubber hose assembly for top-blown converter |
| CN201547439U (en) * | 2009-10-12 | 2010-08-11 | 梁广仁 | Hose connecting device |
| CN102343822A (en) * | 2011-07-18 | 2012-02-08 | 刘晖 | Gas pipeline installed on pantograph and manufacturing method thereof |
| CN202546082U (en) * | 2012-03-05 | 2012-11-21 | 三明华能液压泵阀制造有限公司 | Hose coupling |
| CN203476235U (en) * | 2013-10-15 | 2014-03-12 | 杭州欧佩亚海洋工程有限公司 | RTP pipe buckling connector for strengthening anti-stretching and anti-twisting capacity |
| CN203571262U (en) * | 2013-11-18 | 2014-04-30 | 南京晨光欧佩亚复合管工程有限公司 | Two-way large-caliber pipe radial buckling and pressing connector |
| CN206072611U (en) * | 2016-06-30 | 2017-04-05 | 许斌 | A kind of novel rubber hose connecter |
| CN206831000U (en) * | 2017-06-11 | 2018-01-02 | 河南恒星液压有限公司 | Integral type fastening pipe joint |
| CN207486293U (en) * | 2017-11-20 | 2018-06-12 | 温州齐力流体设备有限公司 | A kind of high-pressure hose connector |
| CN207486267U (en) * | 2017-11-22 | 2018-06-12 | 保一集团有限公司 | Steel moulds a kind of sealing reliability connection structure of connector |
| CN207921552U (en) * | 2018-01-26 | 2018-09-28 | 郑州赛福流体技术有限公司 | Wound form hose buckling connector |
| WO2018200375A1 (en) * | 2017-04-24 | 2018-11-01 | Reliance Worldwide Corporation | Pipe connector with tapered thread nut |
| CN108916505A (en) * | 2018-06-15 | 2018-11-30 | 中国石油大学(华东) | A kind of attaching type high-pressure rubber hose coupling |
-
2019
- 2019-09-25 CN CN201910915226.7A patent/CN110778826A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210012U (en) * | 1986-12-13 | 1988-02-10 | 沈阳第四橡胶厂 | Special rubber pipe assembly for dissolved acetylene |
| CN2828513Y (en) * | 2005-11-02 | 2006-10-18 | 芜湖双翼液压件制造公司 | Wire wrapped superhigh-pressure hose assembly |
| CN201273404Y (en) * | 2008-08-07 | 2009-07-15 | 中橡集团沈阳橡胶研究设计院 | Large-diameter high-pressure rubber hose assembly for top-blown converter |
| CN201547439U (en) * | 2009-10-12 | 2010-08-11 | 梁广仁 | Hose connecting device |
| CN102343822A (en) * | 2011-07-18 | 2012-02-08 | 刘晖 | Gas pipeline installed on pantograph and manufacturing method thereof |
| CN202546082U (en) * | 2012-03-05 | 2012-11-21 | 三明华能液压泵阀制造有限公司 | Hose coupling |
| CN203476235U (en) * | 2013-10-15 | 2014-03-12 | 杭州欧佩亚海洋工程有限公司 | RTP pipe buckling connector for strengthening anti-stretching and anti-twisting capacity |
| CN203571262U (en) * | 2013-11-18 | 2014-04-30 | 南京晨光欧佩亚复合管工程有限公司 | Two-way large-caliber pipe radial buckling and pressing connector |
| CN206072611U (en) * | 2016-06-30 | 2017-04-05 | 许斌 | A kind of novel rubber hose connecter |
| WO2018200375A1 (en) * | 2017-04-24 | 2018-11-01 | Reliance Worldwide Corporation | Pipe connector with tapered thread nut |
| CN206831000U (en) * | 2017-06-11 | 2018-01-02 | 河南恒星液压有限公司 | Integral type fastening pipe joint |
| CN207486293U (en) * | 2017-11-20 | 2018-06-12 | 温州齐力流体设备有限公司 | A kind of high-pressure hose connector |
| CN207486267U (en) * | 2017-11-22 | 2018-06-12 | 保一集团有限公司 | Steel moulds a kind of sealing reliability connection structure of connector |
| CN207921552U (en) * | 2018-01-26 | 2018-09-28 | 郑州赛福流体技术有限公司 | Wound form hose buckling connector |
| CN108916505A (en) * | 2018-06-15 | 2018-11-30 | 中国石油大学(华东) | A kind of attaching type high-pressure rubber hose coupling |
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