CN114017550A - High-pressure metal hose with anti-loosening connecting structure and using method thereof - Google Patents
High-pressure metal hose with anti-loosening connecting structure and using method thereof Download PDFInfo
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- CN114017550A CN114017550A CN202111391973.9A CN202111391973A CN114017550A CN 114017550 A CN114017550 A CN 114017550A CN 202111391973 A CN202111391973 A CN 202111391973A CN 114017550 A CN114017550 A CN 114017550A
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- welding
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- metal hose
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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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
- F16L11/15—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics corrugated
-
- 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
- F16L33/26—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses specially adapted for hoses of metal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention provides a high-pressure metal hose with an anti-loose connection structure and a use method thereof, which are used for solving the technical problems that a welding adapter of the existing high-pressure metal hose is unstable when being connected with a pipeline system by using an outer sleeve nut, and the joint of a metal corrugated pipe of the high-pressure metal hose and the welding adapter is easy to leak. The invention firstly adjusts the layer number of the metal corrugated pipe and the metal mesh on the welding conversion head according to the using environment pressure, and improves the compression resistance of the corrugated part of the metal corrugated pipe; the welding conversion head, the metal corrugated pipe and the metal net sleeve are fixedly connected into an integrated structure, so that the connection stability is further improved; the internal thread of the outer sleeve nut is set to be a 30-degree wedge-shaped anti-loosening thread, and thread interference locking is generated when the outer sleeve nut is in threaded connection with a pipeline system, so that the anti-vibration anti-loosening effect is achieved, the medium leakage is prevented, and the system stability is improved.
Description
Technical Field
The invention relates to the technical field of high-pressure metal hoses, in particular to a high-pressure metal hose with an anti-loosening connecting structure and a using method thereof.
Background
The metal hose has the advantages of light weight, small volume, high pressure bearing capacity, high and low temperature resistance, fatigue resistance, good flexibility and the like, can absorb vibration and compensate installation offset and pipeline displacement, and is widely applied to the fields of aviation and aerospace engines and the like.
The existing high-pressure metal hose has certain defects, firstly, a welding adapter of the high-pressure metal hose is generally connected with a system through a common thread outer sleeve nut, after common threads are meshed, the stress of each meshed tooth is uneven, the stress of a first tooth is generally the largest, the stress of a second tooth is the second order, the last tooth is even in a suspension state, the sum of the stresses of the first tooth and the second tooth is generally 70-80% of the pretightening force, the high-pressure metal hose is a very unstable stress state, and under the conditions of severe vibration and large temperature difference, the stress of the first tooth possibly exceeds the yield point to generate plastic deformation to cause looseness, so that the sealing performance is invalid, media are leaked, and the system fails.
Secondly, the pipeline system applied to the high-pressure metal hose at the present stage mainly improves the anti-loose and anti-vibration performance of the whole system in the modes of gluing the thread part or punching a fuse on an outer sleeve nut, the glue solution is easily brought into the system by gluing the thread part to generate redundant materials, the glue solution is difficult to be reused after gluing, and the fuse is punched to increase the workload and the weight of the system.
Therefore, a high-pressure metal hose with an anti-loosening connecting mechanism is urgently needed to overcome the defects of the existing high-pressure metal hose.
Disclosure of Invention
The invention provides a high-pressure metal hose with an anti-loosening connecting structure and a using method thereof, aiming at the technical problems that a welding adapter of the existing high-pressure metal hose is unstable when being connected with a pipeline system by using a sleeve nut, and the joint of a metal corrugated pipe of the high-pressure metal hose and the welding adapter is easy to leak; secondly, a first anti-loosening connecting mechanism is arranged on the high-pressure protection mechanism, the metal corrugated pipe, the welding adapter and the high-pressure protection mechanism are fixed into an integrated structure, and the connection stability of the metal corrugated pipe and the welding adapter is further improved; and finally, a second anti-loosening connecting mechanism is arranged at the end part of the welding adapter, so that the stability of the end part of the welding adapter and the system connection is improved.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the utility model provides a take locking connection structure's high-pressure metal collapsible tube, including the welding change-over head, corrugated metal pipe, high pressure protection mechanism, first locking coupling mechanism and second locking coupling mechanism, the one end fixed mounting of welding change-over head is at corrugated metal pipe's tip, high pressure protection mechanism is located corrugated metal pipe and the tip of high pressure protection mechanism and the one end fixed connection of welding change-over head, first locking coupling mechanism is located high pressure protection mechanism and first locking coupling mechanism respectively with welding change-over head and high pressure protection mechanism fixed connection, second locking coupling mechanism installs on the welding change-over head.
Furthermore, the high-pressure protection mechanism comprises at least one layer of metal net sleeve, the metal net sleeve is installed on the metal corrugated pipe, the end part of the metal net sleeve is located on the welding conversion head, and the metal net sleeve is fixedly connected with the welding conversion head and the first anti-loosening connecting mechanism respectively.
Furthermore, first locking coupling mechanism includes the welding ring, and the welding ring is located the tip of metal net cover and the welding ring respectively with welding crossover sub and metal net cover fixed connection.
Furthermore, a spherical joint is arranged at the end part of the welding conversion head, the second anti-loosening connecting mechanism comprises an outer nut, and the outer nut is arranged on the spherical joint.
Furthermore, the internal thread profile of the outer nut is a 30-degree wedge-shaped anti-loosening thread profile, and the internal thread profile of the outer nut is matched with the connecting external thread profile of the pipeline system.
Furthermore, the fixed connection mode of the welding conversion head, the welding ring and the metal net sleeve is argon arc welding or high-frequency brazing.
Furthermore, the end part of the welding conversion head is provided with a ring groove, and the groove bottom of the ring groove is flush with the corrugated bottom of the metal corrugated pipe.
Further, the using method comprises the following steps: according to different pressure of the use environment, different layers of metal net sleeves are arranged, and the layers of the metal net sleeves are in direct proportion to the pressure of the use environment.
Further, according to the pressure of the use environment, the fixed connection mode among the welding conversion head, the welding ring and the metal net sleeve is argon arc welding or high-frequency brazing.
Further, when the pressure of the use environment is less than or equal to 6.4MPa, the fixed connection mode among the welding conversion head, the welding ring and the metal net sleeve is argon arc welding; when the pressure of the use environment of the high-pressure metal hose with the anti-loosening connecting structure is larger than 6.4MPa, the fixed connection mode among the welding conversion head, the welding ring and the metal net sleeve is high-frequency brazing.
The invention has the beneficial effects that:
1. the metal net sleeves are arranged on the metal corrugated pipe and the welding conversion head, the number of the metal net sleeves is adjusted according to the using environment pressure, the number of the metal net sleeves is ensured to be selected properly under certain environment pressure, the metal net sleeves not only share static loads of the metal corrugated pipe in the axial direction and the radial direction, the metal corrugated pipe can be ensured to work safely and reliably under the condition that fluid flows along a pipeline to generate a pulsation effect, meanwhile, the pressure resistance of the corrugated part of the metal corrugated pipe can be improved, and the corrugated part of the metal corrugated pipe can not be directly subjected to mechanical damage in the aspects of relative friction, impact and the like.
2. According to the invention, the welding ring is arranged between the metal net sleeve and the welding adapter, and the welding ring is sleeved on the metal net sleeve and is respectively and fixedly connected with the welding conversion head and the metal net sleeve, so that the metal corrugated pipe is fixedly connected with the welding conversion head, and the welding conversion head, the metal corrugated pipe and the metal net sleeve are fixedly connected into an integrated structure, so that the high-pressure metal hose keeps integrity under a high-pressure environment to bear pressure, and the connection stability is further improved.
3. The internal thread of the outer sleeve nut is set to be a 30-degree wedge-shaped anti-loosening thread, the 30-degree wedge-shaped anti-loosening thread is a self-locking thread with a unique 30-degree wedge-shaped inclined surface at the thread bottom, the inclined surface cannot influence the free rotation of the thread before a clamping load is applied, and when the external thread of a pipeline system and the internal thread of the outer sleeve nut are screwed up mutually, the crest of the external thread can tightly abut against the wedge-shaped inclined surface of the internal thread, so that thread interference locking is generated, and the anti-vibration anti-loosening effect is achieved. In addition, when the external thread crest is meshed with the internal thread wedge-shaped surface, the tooth tip at the top pressing part is easy to deform, so that the load is uniformly distributed on all contacted tooth shapes, and the plastic deformation of the thread tooth shapes and the connection looseness caused by the concentrated action of more than 80% of the total load on the thread surfaces of the first tooth and the second tooth when common standard threads are meshed are avoided, thereby improving the sealing performance when the high-pressure metal hose is connected with a pipeline system, preventing the medium leakage and improving the system stability.
4. According to the invention, the annular groove matched with the end part of the metal corrugated pipe is arranged on the welding adapter, the metal corrugated pipe is firstly flattened by two waves, the matching degree of the end part of the metal corrugated pipe and the welding adapter is ensured, the welding thickness of the end part of the metal corrugated pipe during welding is increased, the airtightness is improved, the annular groove arranged on the welding adapter can play a role in heat insulation, the heat of a welding part is concentrated during welding, the welding is easy to melt, a welding wire is not required to be added during welding of the welding adapter and the metal corrugated pipe, the substrate is directly melted, the welding current can be reduced, and the substrate is prevented from being punctured by overlarge current.
5. When the welding conversion head, the welding ring and the metal net sleeve are fixedly connected by welding, the welding mode is adjusted according to the use environment pressure of the high-pressure metal hose, so that the stability during connection can be further improved, and the situations of overlarge pressure and cracking of a welding seam are prevented.
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 the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the outer nut of the present invention.
Fig. 3 is an enlarged schematic view of the 30 wedge lock thread shown at a in fig. 2.
FIG. 4 is a schematic view of the engagement of the internal thread profile with the connecting external thread profile of the present invention.
Fig. 5 is a schematic structural diagram of a welded adapter according to the present invention.
FIG. 6 is an enlarged view of the ring groove shown in B of FIG. 5.
Fig. 7 is a schematic structural view of the metal corrugated pipe of the present invention after the two waves are flattened.
In the figure, 1-a sleeve nut, 2-a spherical joint, 3-a welding adapter, 4-a welding ring, 5-a metal corrugated pipe, 6-a metal net sleeve, 7-an internal thread tooth form, 8-a ring groove and 9-a connecting external thread tooth form.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The utility model provides a take locking connection structure's high-pressure metal collapsible tube, as shown in fig. 1, including welding change-over head 3, corrugated metal pipe 5, high-pressure protection mechanism, first locking coupling mechanism and the locking coupling mechanism of second, the one end fixed mounting of welding change-over head 3 is at the tip of corrugated metal pipe 5, high-pressure protection mechanism is located corrugated metal pipe 5 and the tip of high-pressure protection mechanism and the one end fixed connection of welding change-over head 3, first connection mechanism that loosens is located the tip of high-pressure protection mechanism and first locking coupling mechanism respectively with the one end and the high-pressure protection mechanism fixed connection of welding change-over head 3, the locking coupling mechanism of second is installed on the other end of welding change-over head 3. Firstly, a high-pressure protection mechanism is arranged between a metal corrugated pipe 5 and a welding adapter 3, the metal corrugated pipe 5 and the welding adapter 3 are in a high-pressure state in the use process of the high-pressure metal hose with the anti-loosening connection structure, the connection stability between the metal corrugated pipe 5 and the welding adapter 3 is easy to fluctuate, and the high-pressure protection mechanism is arranged on the metal corrugated pipe 5 and the welding adapter 3, so that the stability of the fixed connection of the metal corrugated pipe 5 and the welding adapter 3 in the high-pressure state can be ensured, and the use stability of the high-pressure metal hose with the anti-loosening connection structure is improved; secondly, a first anti-loosening connecting mechanism is arranged on the high-pressure protection mechanism, the metal corrugated pipe 5, the welding adapter 3 and the high-pressure protection mechanism are fixed into an integrated structure, the integrated structure can ensure the integrity of the high-pressure metal hose with the anti-loosening connecting structure in a high-pressure state, the compression resistance is improved, and the connection stability of the metal corrugated pipe 5 and the welding adapter 3 is further improved; finally, the end part of the welding adapter 3 is provided with a second anti-loosening connecting mechanism, when the high-pressure metal hose is integrally used, the two ends of the second anti-loosening connecting mechanism are used for connecting the pipeline system and the welding adapter 3, and the stability of the end part of the welding adapter 3 when being connected with the pipeline system is improved.
Further, as shown in fig. 1, the high-pressure protection mechanism includes at least one layer of metal mesh 6, the metal mesh 6 is installed on the metal corrugated pipe 5, an end of the metal mesh 6 is located on an end of the welding adapter 3, and the metal mesh 6 is fixedly connected to the welding adapter 3 and the first anti-loose connection mechanism, respectively. In the use process of the metal corrugated pipe 5, the metal mesh sleeve 6 is arranged on the metal corrugated pipe 5 and the welding conversion head 3, the metal mesh sleeve 6 not only shares the static load of the metal corrugated pipe 5 in the axial direction and the radial direction, the metal corrugated pipe 5 can be ensured to work safely and reliably under the condition that the fluid flows along the pipeline to generate the pulsation action, meanwhile, the pressure resistance of the corrugated part of the metal corrugated pipe 5 can be improved, and the corrugated part of the metal corrugated pipe 5 can not be directly subjected to mechanical damage in the aspects of relative friction, impact and the like.
Further, as shown in fig. 1, the first anti-loose connection mechanism includes a welding ring 4, the welding ring 4 is located at an end of the metal mesh sleeve 6, and the welding ring 4 is fixedly connected to the welding adapter 3 and the metal mesh sleeve 6 respectively. The welding ring 4 is sleeved on the metal mesh sleeve 6 and is respectively fixedly connected with the welding conversion head 3 and the metal mesh sleeve 6, so that the metal corrugated pipe 5 is fixedly connected with the welding conversion head 3, the metal corrugated pipe 5 and the metal mesh sleeve 6 are fixedly connected into an integrated structure, the pressure of the whole body is borne under the high-pressure environment, and the connection stability is further improved.
Further, as shown in fig. 1, a ball joint 2 is provided on an end of the welding adapter 3, as shown in fig. 2, and the second anti-loose connection mechanism includes a cap nut 1, as shown in fig. 1, the cap nut 1 is mounted on the ball joint 2.
Specifically, as shown in fig. 3, the internal thread profile 7 of the outer nut 1 is a 30-degree wedge-shaped anti-loosening thread profile, and the internal thread profile 7 of the outer nut 1 is matched with the connecting external thread profile (9) of the pipeline system. In the process of connecting the high-pressure metal hose with the anti-loosening connecting structure with a pipeline system, firstly, the spherical joint 2 is connected with one end of the outer sleeve nut 1, in the embodiment, the end part of the outer sleeve nut 1 is provided with a T-shaped limiting mechanism, and after the spherical joint 2 is connected with the outer sleeve nut 1, the limiting mechanism limits the spherical joint 2, so that the spherical joint 2 is prevented from being separated from the outer sleeve nut 1, and the connection stability is improved; secondly, the outer sleeve nut 1 is in threaded connection with a pipeline system, the internal thread profile 7 of the outer sleeve nut 1 is a 30-degree wedge-shaped anti-loosening thread, and as shown in fig. 4, the internal thread profile 7 is connected with a common external thread profile 9. The 30-degree wedge-shaped anti-loosening thread is a self-locking thread with a unique 30-degree wedge-shaped inclined surface at the thread bottom, the inclined surface cannot influence the free rotation of the thread before a clamping load is applied, and when the external thread of a pipeline system and the internal thread of an outer sleeve nut are mutually screwed, the crest of the external thread can tightly prop against the wedge-shaped inclined surface of the internal thread, so that the interference locking of the thread is generated, and the anti-vibration and anti-loosening effects are achieved. In addition, when the external thread crest is meshed with the internal thread wedge surface, the tooth tip at the top pressing part is easy to deform, so that the load is uniformly distributed on all contacted tooth shapes, the plastic deformation of the thread tooth shapes is caused and the connection looseness is caused when more than 80% of total load is intensively acted on the thread surfaces of the first tooth and the second tooth when common standard threads are meshed is avoided, thereby improving the sealing performance when the high-pressure metal hose with the anti-loosening connection structure is connected with a pipeline system, preventing the medium leakage and improving the system stability.
Further, the fixed connection mode of the welding conversion head 3, the welding ring 4 and the metal mesh 6 is argon arc welding or high frequency brazing, as shown in fig. 5 and fig. 6, one end of the welding conversion head 3 is provided with a ring groove 8, as shown in fig. 1, the groove bottom of the ring groove is flush with the corrugated bottom of the metal corrugated pipe, as shown in fig. 7, before the metal corrugated pipe 5 is welded with the welding conversion head 3, the metal corrugated pipe 5 is flattened by two waves, so as to ensure the matching degree of the end part of the metal corrugated pipe 5 and the welding conversion head 3, the ring groove 8 is changed to increase the welding thickness when the end part of the metal corrugated pipe 5 is welded, so as to improve the sealing performance, and the ring groove 8 is arranged on the welding conversion head 3 to play a main role of heat insulation, so that the heat of the welding part is concentrated when welding, and is easy to melt when welding, as shown in fig. 1, when welding the conversion head 3 and the metal corrugated pipe 5, no welding wire is added, the base body is directly melted, so that the welding current can be reduced, and the base body is prevented from being broken down due to overlarge current.
Example 2
In the embodiment, the high-pressure metal hose with the anti-loosening connecting structure is mainly applied to an aircraft engine, mainly plays the roles of installation compensation, vibration reduction and noise reduction, and is suitable for the high-temperature and vibration environment of the engine. In application, the use method comprises the following steps: according to the pressure difference of the high-pressure metal hose service environment with the anti-loosening connecting structure, the metal net sleeves 6 with different layers are arranged, and the layers of the metal net sleeves 6 are in direct proportion to the pressure of the service environment. Specifically, for a metal hose with the specification of DN20, 1 layer of metal mesh sleeve 6 is arranged when the pressure is less than or equal to 6.4 MPa; when the pressure range is 6.4 MPa-12 MPa, 2 layers of metal net sleeves 6 are arranged; when the pressure range is 12 MPa-23 MPa, 3 layers of metal net sleeves 6 are arranged. In other embodiments of the present invention, the number of layers of the metal mesh 6 may be further adaptively adjusted according to the variation of the pressure range, as long as the object of the present invention is achieved.
Further, in this embodiment, the method for using the high-pressure metal hose with the anti-loose connection structure further includes: according to the pressure of the use environment of the high-pressure metal hose with the anti-loose connecting structure, the fixed connecting mode among the welding conversion head 3, the welding ring 4 and the metal net sleeve 6 is argon arc welding or high-frequency brazing. Specifically, when the pressure of the high-pressure metal hose with the anti-loose connection structure in the use environment is less than or equal to 6.4MPa, the fixed connection mode among the welding conversion head 3, the welding ring 4 and the metal net sleeve 6 is argon arc welding; when the pressure of the use environment of the high-pressure metal hose with the anti-loosening connecting structure is larger than 6.4MPa, the fixed connection mode among the welding conversion head 3, the welding ring 4 and the metal net sleeve 6 is high-frequency brazing. The welding mode is changed according to the change of the environmental pressure, the stability during connection can be further improved, and the conditions of overlarge pressure and welding line cracking are prevented.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a take locking connection structure's high-pressure metal hose, its characterized in that, includes welding conversion head (3), corrugated metal pipe (5), high-pressure protection mechanism, first locking coupling mechanism and the locking coupling mechanism of second, the one end fixed mounting of welding conversion head (3) is at the tip of corrugated metal pipe (5), high-pressure protection mechanism is located corrugated metal pipe (5) and the tip of high-pressure protection mechanism and the one end fixed connection of welding conversion head (3), first locking coupling mechanism is located high-pressure protection mechanism and first locking coupling mechanism respectively with welding conversion head (3) and high-pressure protection mechanism fixed connection, the locking coupling mechanism of second is installed on welding conversion head (3).
2. The high-pressure metal hose with the anti-loose connection structure as claimed in claim 1, wherein the high-pressure protection mechanism comprises at least one layer of metal mesh (6), the metal mesh (6) is installed on the metal corrugated pipe (5), the end of the metal mesh (6) is located on the welding converter head (3), and the metal mesh (6) is fixedly connected with the welding converter head (3) and the first anti-loose connection mechanism respectively.
3. The high-pressure metal hose with anti-loose connection structure as claimed in claim 2, wherein the first anti-loose connection structure comprises a welding ring (4), the welding ring (4) is located at the end of the metal net sleeve (6), and the welding ring (4) is fixedly connected with the welding conversion head (3) and the metal net sleeve (6), respectively.
4. The high-pressure metal hose with anti-loose connection structure as claimed in any one of claims 1 to 3, characterized in that a ball joint (2) is provided on the end of the welding switching head (3), and the second anti-loose connection structure comprises an outer nut (1), and the outer nut (1) is mounted on the ball joint (2).
5. The high-pressure metal hose with anti-loose connection structure as claimed in claim 4, characterized in that the internal thread profile (7) of the outer nut (1) is a 30 ° wedge-shaped anti-loose thread profile, and the internal thread profile (7) of the outer nut (1) is matched with the external connection thread profile (9) of the piping system.
6. The high-pressure metal hose with the anti-loose connection structure as claimed in claim 3 or 5, wherein the fixed connection mode of the welding conversion head (3), the welding ring (4) and the metal net sleeve (6) is argon arc welding or high-frequency brazing.
7. The high-pressure metal hose with anti-loose connection structure as claimed in claim 6, wherein the end of the welding conversion head (3) is provided with a ring groove (8), and the groove bottom of the ring groove (8) is flush with the corrugated bottom of the corrugated metal pipe (5).
8. The high-pressure metal hose with looseness-proof connection structure according to claim 7, wherein a method of using the high-pressure metal hose comprises: according to different pressures of the use environment, different layers of metal net sleeves (6) are arranged, and the layers of the metal net sleeves (6) are in direct proportion to the pressure of the use environment.
9. The method for using the high-pressure metal hose with the anti-loose connection structure as claimed in claim 8, wherein the fixed connection mode among the welding conversion head (3), the welding ring (4) and the metal net sleeve (6) is argon arc welding or high-frequency brazing according to the pressure of the use environment.
10. The use method of the high-pressure metal hose with the anti-loose connection structure as claimed in claim 9, wherein when the pressure of the use environment is less than or equal to 6.4MPa, the fixed connection mode among the welding conversion head (3), the welding ring (4) and the metal mesh sleeve (6) is argon arc welding; when the pressure of the use environment of the high-pressure metal hose with the anti-loosening connecting structure is larger than 6.4MPa, the fixed connection mode among the welding conversion head (3), the welding ring (4) and the metal net sleeve (6) is high-frequency brazing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111391973.9A CN114017550A (en) | 2021-11-23 | 2021-11-23 | High-pressure metal hose with anti-loosening connecting structure and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111391973.9A CN114017550A (en) | 2021-11-23 | 2021-11-23 | High-pressure metal hose with anti-loosening connecting structure and using method thereof |
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| CN114017550A true CN114017550A (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111391973.9A Pending CN114017550A (en) | 2021-11-23 | 2021-11-23 | High-pressure metal hose with anti-loosening connecting structure and using method thereof |
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| CN (1) | CN114017550A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11190469A (en) * | 1997-12-26 | 1999-07-13 | Nikkan Kizai Kk | High pressure tube |
| CN209115837U (en) * | 2018-08-23 | 2019-07-16 | 航天晨光股份有限公司 | A kind of aircraft metal hose |
| CN209743811U (en) * | 2019-01-31 | 2019-12-06 | 高科橡塑工业有限公司 | Small-bore metal collapsible tube connects welded structure of steelmaking conticaster vibrations platform |
| CN210179090U (en) * | 2019-04-10 | 2020-03-24 | 博瓦(上海)波纹管技术有限公司 | Seamless corrugated hose for nuclear power |
| CN210739609U (en) * | 2019-11-12 | 2020-06-12 | 南京罗根液压技术有限公司 | Metal corrugated hose |
| CN214247952U (en) * | 2021-01-05 | 2021-09-21 | 北京中车重工机械有限公司 | Anti-loose nut |
| CN214368315U (en) * | 2021-01-09 | 2021-10-08 | 宁波宏武管业有限公司 | Metal hose |
-
2021
- 2021-11-23 CN CN202111391973.9A patent/CN114017550A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11190469A (en) * | 1997-12-26 | 1999-07-13 | Nikkan Kizai Kk | High pressure tube |
| CN209115837U (en) * | 2018-08-23 | 2019-07-16 | 航天晨光股份有限公司 | A kind of aircraft metal hose |
| CN209743811U (en) * | 2019-01-31 | 2019-12-06 | 高科橡塑工业有限公司 | Small-bore metal collapsible tube connects welded structure of steelmaking conticaster vibrations platform |
| CN210179090U (en) * | 2019-04-10 | 2020-03-24 | 博瓦(上海)波纹管技术有限公司 | Seamless corrugated hose for nuclear power |
| CN210739609U (en) * | 2019-11-12 | 2020-06-12 | 南京罗根液压技术有限公司 | Metal corrugated hose |
| CN214247952U (en) * | 2021-01-05 | 2021-09-21 | 北京中车重工机械有限公司 | Anti-loose nut |
| CN214368315U (en) * | 2021-01-09 | 2021-10-08 | 宁波宏武管业有限公司 | Metal hose |
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