CN113639123A - Pipe-in-pipe joint fixing device - Google Patents
Pipe-in-pipe joint fixing device Download PDFInfo
- Publication number
- CN113639123A CN113639123A CN202010344043.7A CN202010344043A CN113639123A CN 113639123 A CN113639123 A CN 113639123A CN 202010344043 A CN202010344043 A CN 202010344043A CN 113639123 A CN113639123 A CN 113639123A
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- Prior art keywords
- pipe
- inner pipe
- pipe joint
- joint
- sleeve
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- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 31
- 230000013011 mating Effects 0.000 description 4
- 239000008213 purified water Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- 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
- F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
- F16L39/005—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies for concentric pipes
-
- 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
- F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a pipe-in-pipe joint fixing device, which comprises an inner pipe and an outer pipe sleeved outside the inner pipe, wherein an inner passage is formed in the inner pipe, and an outer passage is formed between the inner pipe and the outer pipe; the device also comprises a fixing mechanism and a connecting sleeve which is connected with the outer pipe; the fixing mechanism comprises an inner pipe joint unit, an outer pipe joint and a locking mechanism; the inner pipe joint unit is fixedly arranged at the port of the inner pipe and communicated with the inner passage; the outer pipe joint is fixedly arranged at the end port of the outer pipe, and the inner pipe joint unit and the outer pipe joint are fixedly arranged together through a locking mechanism; the fixing mechanism is also provided with a communication path which is communicated with the cavity between the connecting sleeve and the fixing mechanism and the external path. It has the following advantages: the outer pipe joint and the inner pipe joint unit are locked and fixed together through the locking structure to form a whole, the inner pipe and the outer pipe cannot move relatively, the outer pipe joint and the inner pipe joint unit are connected with the outside or matched with parts such as a shower head as a whole, the outer pipe joint and the inner pipe joint unit do not need to be disassembled during assembly, the assembly and disassembly are convenient, and the sealing property is good.
Description
Technical Field
The invention relates to the technical field of kitchens and bathrooms, in particular to a pipe-in-pipe joint fixing device.
Background
The pipe-in-pipe joint fixing device comprises an inner pipe and an outer pipe sleeved outside the inner pipe, wherein an inner passage is formed in the inner pipe, and an outer passage is formed between the inner pipe and the outer pipe. Existing fastening devices, such as: CN104295816B, a water inlet pipe, including female pipe and the son pipe of cover in female pipe, son pipe inner chamber forms the first passageway that is used for carrying first liquid, forms the second passageway that is used for carrying the second liquid between son pipe and the female pipe, female pipe tip periphery cover is equipped with the adapter sleeve, be located the female pipe front end in the adapter sleeve and be equipped with the case, the mesopore has been seted up in the case middle part, son pipe passes the case mesopore and rather than sealed cooperation, and the case week portion sets up the delivery port that is linked together with the second passageway. Or, as: CN205013928U, a quick-connect structure in pipe, including the solid fixed ring of inner tube and outer tube go-between, the solid fixed ring of inner tube is fixed firm with the joint, and the inner tube setting is in the outer tube, and the outer tube end is inserted and is equipped with the joint of being connected with the piece of intaking or play water, the outer tube go-between cover is established on connecting the periphery wall and is connected with the piece of intaking or play water, outer tube go-between periphery side is provided with a location convex part, and the outer tube go-between periphery side symmetry of location convex part both sides is provided with fixed protruding round pin, be provided with on the piece of intaking or play water with location convex part matched with positioning guide way, be provided with on the piece of intaking or the play water with fixed protruding round pin matched with location fixed orifices, the terminal cover of outer tube is equipped with the copper envelope, be provided with the seal groove on the joint, be provided with the sealing washer on the seal groove. The two prior arts have the following disadvantages: firstly, the inner pipe (sub-pipe) is directly connected with the outside (such as a water supply source or a water outlet terminal), and the connection is inconvenient; the inner pipe and the outer pipe are independently separated, the inner pipe can move relative to the outer pipe, the degree of freedom is large, and on one hand, the assembly is inconvenient; on the other hand, need dismantle when changing and washing, it may be become flexible to have for a long time, leads to the risk that leaks to appear.
Disclosure of Invention
The invention provides a pipe-in-pipe joint fixing device, which overcomes the defects of the pipe-in-pipe joint fixing device in the background technology.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the pipe-in-pipe joint fixing device comprises an inner pipe and an outer pipe sleeved outside the inner pipe, wherein an inner passage is formed in the inner pipe, and an outer passage is formed between the inner pipe and the outer pipe; the device also comprises a fixing mechanism and a connecting sleeve which is connected with the outer pipe; the fixing mechanism comprises an inner pipe joint unit, an outer pipe joint and a locking mechanism; the inner pipe joint unit is fixedly arranged at the port of the inner pipe and communicated with the inner passage; the outer pipe joint is fixedly arranged at the end port of the outer pipe, and the inner pipe joint unit and the outer pipe joint are fixedly arranged together through a locking mechanism; the fixing mechanism is also provided with a communication path which is communicated with the cavity between the connecting sleeve and the fixing mechanism and the external path.
In one embodiment: the inner pipe joint unit comprises an inner pipe joint and an inner pipe jacket, wherein one end of the inner pipe joint is inserted into the inner pipe port to realize fixing, one end of the inner pipe jacket is tightly sleeved on the part of the inner pipe joint, which extends out of the inner pipe port, and the other end of the inner pipe jacket is tightly sleeved on the outer peripheral wall of the tail end of the inner pipe.
In one embodiment: the outer pipe joint is provided with a locking section and a connecting section, the locking section is inserted into the outer pipe port and fixedly connected with the inner wall of the outer pipe port, and a positioning surface is arranged between the connecting section and the locking section and is abutted against the end surface of the outer pipe.
In one embodiment: still include first buckle, this outer tube joint periphery wall is concave to be equipped with the annular, and this first buckle cup joints in the annular of outer tube joint and has the bulge that stretches out the outer tube joint, is equipped with spacing face in this adapter sleeve, and this bulge cooperatees with spacing face.
In one embodiment: the inner pipe joint unit comprises an inner pipe joint, one end of the inner pipe joint is inserted into the inner pipe port to realize the fixed installation, and the part of the inner pipe joint extending out of the inner pipe port is provided with a matching surface facing the inner pipe; the locking mechanism comprises a second buckle which is sleeved outside the inner pipe joint and positioned between the end surface of the outer pipe joint and the matching surface.
In one embodiment: the second buckle comprises a C-shaped buckle, and the C-shaped buckle is provided with a notch which forms the communication path or the part of the communication path.
In one embodiment: the second snap end surface is concavely provided with a groove which penetrates through the inside and the outside, and the groove forms the communication path or the part of the communication path.
In one embodiment: the inner pipe joint unit comprises an inner pipe sleeve, one end of the inner pipe sleeve is tightly sleeved on the part of the inner pipe joint, extending out of the inner pipe port, the other end of the inner pipe sleeve is tightly sleeved on the outer wall of the tail end of the inner pipe, and the second buckle is surrounded outside the inner pipe sleeve.
In one embodiment: the inner pipe joint unit comprises an inner pipe joint and an inner joint, one end of the inner pipe joint is inserted into the inner pipe port to be fixedly installed, the inner joint is fixedly installed at the other end of the inner pipe joint, a convex ring is arranged on the inner pipe joint, the locking mechanism comprises a locking sleeve, the inner joint is located in the outer pipe joint port, the convex ring abuts against the tail end face of the outer pipe joint, the locking sleeve is fixedly installed outside the outer pipe joint, and the locking sleeve and the tail end face of the outer pipe joint are locked tightly through locking of the locking sleeve and the outer pipe joint.
In one embodiment: the connecting section is provided with a through hole penetrating inside and outside, and the through hole forms the communication path.
In one embodiment: the locking sleeve is internally provided with a flange in a protruding way, and the flange and the tail end surface of the outer pipe joint are tightly locked with the convex ring through locking connection of the locking sleeve and the outer pipe joint.
In one embodiment: the inner pipe joint unit comprises an inner pipe sleeve, one end of the inner pipe sleeve is tightly sleeved on the part of the inner pipe joint, extending out of the inner pipe port, the other end of the inner pipe sleeve is tightly sleeved on the outer wall of the tail end of the inner pipe, and the outer pipe joint is surrounded outside the inner pipe sleeve.
Compared with the background technology, the technical scheme has the following advantages:
the outer pipe joint and the inner pipe joint unit are locked and fixed together through the locking structure to form a whole, the inner pipe and the outer pipe cannot move relatively, the outer pipe joint and the inner pipe joint unit are connected with the outside or matched with parts such as a shower head as a whole, the outer pipe joint and the inner pipe joint unit do not need to be disassembled during assembly, the assembly and disassembly are convenient, and the sealing property is good.
Drawings
The invention is further described with reference to the following figures and detailed description.
FIG. 1 is a schematic cross-sectional view of a fastening device according to an embodiment.
Fig. 2 is an exploded perspective view of a fastening device according to an embodiment.
FIG. 3 is a schematic structural diagram of an application example of a fixing apparatus according to an embodiment.
Fig. 4 is a partial sectional view of fig. 3 at a.
FIG. 5 is a schematic cross-sectional view of a second embodiment of a fastening device.
FIG. 6 is an exploded perspective view of a second embodiment of a fastening device.
FIG. 7 is a perspective view of a second clip of the second fastening device according to the embodiment.
Description of reference numerals: an inner tube 1, an outer tube 2, an inner passage 11, an outer passage 21; a fixing mechanism 3, an inner pipe joint unit 31, an outer pipe joint 32, a lock mechanism 33, and a communication path 34; inner tube connector 311, second male ring 3111, inner connector 312, inner tube envelope 313; the locking section 321, the connecting section 322, the convex ring 3121, the positioning surface 323 and the annular groove 324; locking sleeve 331, flange 332; the connecting sleeve 4, the cavity 41 and the limiting surface 42; a first buckle 5.
A mating surface 3112, a second latch 333, a notch 3331, and a recess 3332.
Detailed Description
Example one
Please refer to fig. 1 and 2, the pipe-in-pipe joint fixing device includes a pipe-in-pipe, the pipe-in-pipe includes an inner pipe 1 and an outer pipe 2 sleeved outside the inner pipe 1, an inner passage 11 is formed in the inner pipe 1, an outer passage 21 is formed between the inner pipe 1 and the outer pipe 2, and the inner passage 11 and the outer passage 21 are isolated from each other by the inner pipe 1.
The pipe-in-pipe joint fixing device further comprises a fixing mechanism 3 and a connecting sleeve 4 connected to the outer pipe 2 in an assembling mode. The fixing mechanism 3 includes an inner pipe joint unit 31, an outer pipe joint 32 and a locking mechanism 33; the inner pipe joint unit 31 is fixedly arranged at the port of the inner pipe 1, and the inner pipe joint unit 31 is communicated with the inner passage 11; the outer pipe joint 32 is fixedly arranged at the port of the outer pipe 2, and the inner pipe joint unit 31 and the outer pipe joint 32 are fixedly arranged together through a locking mechanism 33; the fixing mechanism 3 is further provided with a communication path 34, and the communication path 34 connects the cavity 41 between the connection sleeve 4 and the fixing mechanism 3 and the outer path 21.
The outer pipe fitting 32 has a locking section 321 and a connecting section 322; the locking section 321 is inserted into the port of the outer tube 2 and is fixedly connected to the inner wall of the port of the outer tube 2, for example, the outer peripheral wall of the locking section 321 is provided with inverted teeth or threads or barbs or buckles, and the locking section is fixedly connected by tightly matching the structures with the port of the outer tube 2, and a gap is left between the inner wall of the locking section 321 and the outer wall of the inner tube to allow water to flow through; the connecting section 322 is partially convex relative to the locking section 321 to form a positioning surface 323 facing the outer tube between the locking section and the connecting section, and the positioning surface 323 abuts against the end surface of the outer tube 2, thereby locking and fixing the outer tube fitting 32 and the outer tube 2. A seal ring 325 is provided outside the outer pipe joint 32.
The inner pipe joint unit 31 comprises an inner pipe joint 311 and an inner joint 312, wherein one end of the inner pipe joint 311 is inserted into the port of the inner pipe 1 to realize fixing, such as fixing structures of the outer pipe joint and the outer pipe; the inner joint 312 is fixed at the other end of the inner pipe joint 311, and the fixed part is connected with the inner pipe 1, the inner pipe joint 311 and the inner joint 312 through threads, and the inner joint, the inner pipe joint and the inner water path are communicated. The nipple 312 is located in the end opening of the outer pipe fitting 32, and a convex ring 3121 is protruded from the outer peripheral wall of the nipple 312.
The locking mechanism 33 includes a locking sleeve 331, the periphery of the end of the locking sleeve 331 extends inward to form an inward convex flange 332, the locking sleeve 331 is sleeved on the inner joint 312 and locked on the outer pipe joint 32, and the locking is connected with threads; the convex ring 3121 is between the end surface of the outer pipe joint 32 and the flange 332, and the flange and the end surface of the outer pipe joint are tightly locked by locking, so as to lock and fix the outer pipe joint 32, the inner pipe joint 311 and the inner joint 312, the inner pipe and the outer pipe do not move, the integral assembly is convenient, and the disassembly is not needed during the replacement. The connection segment 322 is provided with a through hole penetrating inside and outside, and the through hole constitutes the communication path 34. The locking mechanism may be provided directly between the outer pipe fitting and the inner fitting, such as a threaded connection or other locking, as desired.
The inner pipe joint unit 31 includes an inner pipe sleeve 313, one end of the inner pipe sleeve 313 is tightly sleeved on the part of the inner pipe joint 311 extending out of the port of the inner pipe 1, the other end of the inner pipe sleeve 313 is tightly sleeved on the outer wall of the tail end of the inner pipe 1, the outer pipe joint 311 is surrounded outside the inner pipe sleeve 313, a gap is left between the outer pipe joint 311 and the inner pipe sleeve 313, the inner pipe sleeve 313 further prevents the water flow flowing to the outer passage from flowing into the inner passage, the water flow flowing to the inner passage is prevented from flowing into the outer passage, and the inner pipe and the outer pipe water passage are independent from each other and do not affect each other.
If necessary, the outer peripheral wall of the inner pipe joint 311 is further protruded with a second protruding ring 3111, the inner joint 312 is locked outside the inner pipe joint 311 and the end thereof abuts against the first end face of the second protruding ring 3111, and one end of the inner pipe sleeve 313 is tightly sleeved on the portion of the inner pipe joint 311 protruding out of the inner pipe port and is axially positioned by the second end face of the second protruding ring.
The pipe-in-pipe joint fixing device further comprises a first buckle 5, wherein a ring groove 324 is concavely arranged on the outer peripheral wall of the outer pipe joint 32, the first buckle 5 is sleeved in the ring groove 324 of the outer pipe joint 32 and is provided with a protruding part extending out of the outer pipe joint, the connecting sleeve 4 is of a horn-shaped sleeve structure and is internally provided with a limiting surface 42, and the protruding part is matched with the limiting surface. The horn sleeve is internally provided with an internal thread which can be connected with the outside in a threaded manner, and the locking is realized by limiting through a first buckle during threaded connection. The first snap 5 is for example a C-shaped snap.
In the pipe-in-pipe joint fixing device in the embodiment, the outer pipe joint 32, the inner pipe joint 311 and the inner joint 312 are locked and fixed together to form a whole, the inner pipe and the outer pipe can be used as a whole to be matched with external installation or parts such as a shower head, and the assembly is convenient.
Fig. 3 and 4 are schematic structural views of an application example of the fixing device, which is a kitchen pull-out faucet, the pull-out faucet includes a faucet body 61, a main control mechanism 62 provided on the faucet body 61, and a water through pipe 65, the main control mechanism 62 connects a cold water pipe 63, a hot water pipe 64, and a mixed water path to control water temperature, flow and switch through a handle of the main control mechanism 62; the tap body 61 is also connected with a purified water path; one end of the water pipe 65 is connected with the faucet body 61, the other end of the water pipe 65 penetrates through the faucet body 61 and is communicated with a water outlet terminal 66, and the water pipe 65 adopts the pipe-in-pipe structure; the water pipe 65 and the water outlet terminal 66 are connected by the fixing device, and the water pipe 65 and the main control mechanism 62 are connected by the fixing device; the inner passage 11 and the outer passage 21 of the pipe-in-pipe are respectively communicated with a purified water passage and a mixed water passage, or the inner passage 11 and the outer passage 21 are respectively communicated with the mixed water passage and the purified water passage. The outlet terminal is provided with a switch for controlling the outlet terminal waterway corresponding to the purified water waterway.
Example two
The pipe-in-pipe joint fixing device is different from the first embodiment in that: referring to fig. 5, 6 and 7, the inner pipe joint unit 31 includes an inner pipe joint 311, one end of the inner pipe joint 311 is inserted into the port of the inner pipe 1 for fastening, and a mating surface 3112 facing the inner pipe 1 is disposed on a portion of the inner pipe joint 311 extending out of the port of the inner pipe; the locking mechanism 33 includes a second latch 333, and the second latch 333 is sleeved outside the inner tube connector 311 and is adapted to be positioned between the end surface of the outer tube connector 32 and the mating surface 3112. This inner tube connects and outer tube joint is spacing through second buckle 333, avoids the two relative movement, avoids outer tube and inner tube relative movement, and moreover, the second buckle can not cause the extrusion to the inner tube, can not influence the flow. The second latch 333 includes a C-shaped latch having a notch 3331, a recessed groove 3332 formed on an end surface of the second latch 333 and penetrating inside and outside, and the notch 3331 and the recessed groove 3332 form the communication path 34. The mating surface 3112 also axially locates an end of the inner tube envelope 313. The second buckle 333 not only prevents the outer pipe and the inner pipe from moving relatively, but also forms a water passage, simplifies the structure and has compact structure.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents.
Claims (12)
1. The pipe-in-pipe joint fixing device comprises an inner pipe and an outer pipe sleeved outside the inner pipe, wherein an inner passage is formed in the inner pipe, and an outer passage is formed between the inner pipe and the outer pipe; the method is characterized in that: the device also comprises a fixing mechanism and a connecting sleeve which is connected with the outer pipe; the fixing mechanism comprises an inner pipe joint unit, an outer pipe joint and a locking mechanism; the inner pipe joint unit is fixedly arranged at the port of the inner pipe and communicated with the inner passage; the outer pipe joint is fixedly arranged at the end port of the outer pipe, and the inner pipe joint unit and the outer pipe joint are fixedly arranged together through a locking mechanism; the fixing mechanism is also provided with a communication path which is communicated with the cavity between the connecting sleeve and the fixing mechanism and the external path.
2. The pipe-in-pipe joint securing apparatus of claim 1, wherein: the inner pipe joint unit comprises an inner pipe joint and an inner pipe jacket, wherein one end of the inner pipe joint is inserted into the inner pipe port to realize fixing, one end of the inner pipe jacket is tightly sleeved on the part of the inner pipe joint, which extends out of the inner pipe port, and the other end of the inner pipe jacket is tightly sleeved on the outer peripheral wall of the tail end of the inner pipe.
3. The pipe-in-pipe joint securing apparatus of claim 1, wherein: the outer pipe joint is provided with a locking section and a connecting section, the locking section is inserted into the outer pipe port and fixedly connected with the inner wall of the outer pipe port, and a positioning surface is arranged between the connecting section and the locking section and is abutted against the end surface of the outer pipe.
4. The pipe-in-pipe joint securing apparatus of claim 1, wherein: still include first buckle, this outer tube joint periphery wall is concave to be equipped with the annular, and this first buckle cup joints in the annular of outer tube joint and has the bulge that stretches out the outer tube joint, is equipped with spacing face in this adapter sleeve, and this bulge cooperatees with spacing face.
5. The pipe-in-pipe joint fixing device of claim 3, wherein: the inner pipe joint unit comprises an inner pipe joint, one end of the inner pipe joint is inserted into the inner pipe port to realize the fixed installation, and the part of the inner pipe joint extending out of the inner pipe port is provided with a matching surface facing the inner pipe; the locking mechanism comprises a second buckle which is sleeved outside the inner pipe joint and positioned between the end surface of the outer pipe joint and the matching surface.
6. The pipe-in-pipe joint securing apparatus of claim 5, wherein: the second buckle comprises a C-shaped buckle, and the C-shaped buckle is provided with a notch which forms the communication path or the part of the communication path.
7. The pipe-in-pipe joint securing apparatus of claim 5, wherein: the second snap end surface is concavely provided with a groove which penetrates through the inside and the outside, and the groove forms the communication path or the part of the communication path.
8. The pipe-in-pipe joint securing apparatus of claim 5, wherein: the inner pipe joint unit comprises an inner pipe sleeve, one end of the inner pipe sleeve is tightly sleeved on the part of the inner pipe joint, extending out of the inner pipe port, the other end of the inner pipe sleeve is tightly sleeved on the outer wall of the tail end of the inner pipe, and the second buckle is surrounded outside the inner pipe sleeve.
9. The pipe-in-pipe joint fixing device of claim 3, wherein: the inner pipe joint unit comprises an inner pipe joint and an inner joint, one end of the inner pipe joint is inserted into the inner pipe port to be fixedly installed, the inner joint is fixedly installed at the other end of the inner pipe joint, a convex ring is arranged on the inner pipe joint, the locking mechanism comprises a locking sleeve, the inner joint is located in the outer pipe joint port, the convex ring abuts against the tail end face of the outer pipe joint, the locking sleeve is fixedly installed outside the outer pipe joint, and the locking sleeve and the tail end face of the outer pipe joint are locked tightly through locking of the locking sleeve and the outer pipe joint.
10. The pipe-in-pipe joint securing apparatus of claim 9, wherein: the connecting section is provided with a through hole penetrating inside and outside, and the through hole forms the communication path.
11. The pipe-in-pipe joint securing apparatus of claim 9, wherein: the locking sleeve is internally provided with a flange in a protruding way, and the flange and the tail end surface of the outer pipe joint are tightly locked with the convex ring through locking connection of the locking sleeve and the outer pipe joint.
12. The pipe-in-pipe joint securing apparatus of claim 9, wherein: the inner pipe joint unit comprises an inner pipe sleeve, one end of the inner pipe sleeve is tightly sleeved on the part of the inner pipe joint, extending out of the inner pipe port, the other end of the inner pipe sleeve is tightly sleeved on the outer wall of the tail end of the inner pipe, and the outer pipe joint is surrounded outside the inner pipe sleeve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010344043.7A CN113639123A (en) | 2020-04-27 | 2020-04-27 | Pipe-in-pipe joint fixing device |
| PCT/CN2021/087643 WO2021218655A1 (en) | 2020-04-27 | 2021-04-16 | Pipe joint fixing device in pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010344043.7A CN113639123A (en) | 2020-04-27 | 2020-04-27 | Pipe-in-pipe joint fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113639123A true CN113639123A (en) | 2021-11-12 |
Family
ID=78373181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010344043.7A Pending CN113639123A (en) | 2020-04-27 | 2020-04-27 | Pipe-in-pipe joint fixing device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113639123A (en) |
| WO (1) | WO2021218655A1 (en) |
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| CN208221857U (en) * | 2017-09-05 | 2018-12-11 | 泉州洁士康卫浴有限公司 | Internal and external casing connection structure |
| CN209943716U (en) * | 2019-03-02 | 2020-01-14 | 厦门一岂科技有限公司 | Double-channel hose device |
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| CN201748054U (en) * | 2010-07-27 | 2011-02-16 | 中国石油化工股份有限公司 | Oil gas recovery rubber pipe |
| US10458581B2 (en) * | 2017-05-31 | 2019-10-29 | Contitech Usa, Inc. | Crimped vapor recovery hose fitting |
| CN206929474U (en) * | 2017-06-13 | 2018-01-26 | 厦门英仕卫浴有限公司 | A kind of double water channel shower rods quick connection structures |
| CN212028798U (en) * | 2020-01-19 | 2020-11-27 | 浙江时大管件有限公司 | Double-water-outlet woven hose |
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2020
- 2020-04-27 CN CN202010344043.7A patent/CN113639123A/en active Pending
-
2021
- 2021-04-16 WO PCT/CN2021/087643 patent/WO2021218655A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203703450U (en) * | 2013-10-11 | 2014-07-09 | 江苏科能电力机械有限公司 | Gas-water hose connector |
| CN205013928U (en) * | 2015-08-24 | 2016-02-03 | 厦门建霖工业有限公司 | Fast tying of guan zhongguan constructs |
| CN205013934U (en) * | 2015-08-27 | 2016-02-03 | 厦门建霖工业有限公司 | Guan zhongguan quick connect structure |
| CN107218408A (en) * | 2016-03-18 | 2017-09-29 | 厦门松霖科技股份有限公司 | Temperature control tap |
| CN208221857U (en) * | 2017-09-05 | 2018-12-11 | 泉州洁士康卫浴有限公司 | Internal and external casing connection structure |
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| CN212718595U (en) * | 2020-04-27 | 2021-03-16 | 厦门松霖科技股份有限公司 | Pipe-in-pipe joint fixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021218655A1 (en) | 2021-11-04 |
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