CN109404634B - Anti-disassembly pipe joint assembly and air conditioner - Google Patents
Anti-disassembly pipe joint assembly and air conditioner Download PDFInfo
- Publication number
- CN109404634B CN109404634B CN201710718711.6A CN201710718711A CN109404634B CN 109404634 B CN109404634 B CN 109404634B CN 201710718711 A CN201710718711 A CN 201710718711A CN 109404634 B CN109404634 B CN 109404634B
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- Prior art keywords
- pipe joint
- nut
- wedge
- pipe
- connecting pipe
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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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
- F16L19/028—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall
Abstract
The invention discloses an anti-disassembly pipe joint assembly and an air conditioner, wherein the anti-disassembly pipe joint assembly comprises a pipe joint body, a pipe joint nut assembly and an anti-reversion clamping cap, one end of the pipe joint body is a threaded end, a limiting piece is convexly arranged in the middle, and a first wedge-shaped tooth extending along the circumferential direction is arranged on the side surface of the limiting piece, which is away from the threaded end; comprises a connecting pipe and a connecting pipe nut connected with the connecting pipe; the anti-reverse blocking cap is provided with a containing groove, a through hole is formed in the bottom of the containing groove, a second wedge-shaped tooth matched with the first wedge-shaped tooth is formed on the side wall of the containing groove, and the anti-reverse blocking cap is connected with the connecting pipe nut; the first wedge teeth and the second wedge teeth are meshed to enable the adapter nut to be linked with the pipe joint when the adapter nut is reversed. The anti-disassembly pipe joint assembly provided by the invention realizes the anti-disassembly of the pipe joint body and the pipe joint nut.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to an anti-disassembly pipe joint assembly and an air conditioner.
Background
The indoor side of the split air conditioner of the common working medium at present uses the mode of coupling and connecting pipe nut to connect evaporator and connecting pipe, the existing coupling is generally an integral coupling, mainly made up of threaded section and prismatic surface two parts, through exerting the clockwise moment to the prismatic surface section, threaded section rotates with prismatic surface section together, can cooperate with connecting pipe nut closely, but when exerting the anticlockwise moment at prismatic surface section, but also drive the threaded section to rotate together at the same time, therefore can loosen with the cooperation of connecting pipe nut, therefore there is the detachable possibility, and can not meet the indoor side of the air conditioner using flammable refrigerant and not permit the requirement to use the detachable joint, the connection looseness between coupling and connecting pipe nut, can lead to refrigerant leakage, fail to meet the requirement of assembly standard and security.
Disclosure of Invention
The invention mainly aims to provide an anti-disassembly pipe joint assembly, which aims to realize the anti-disassembly of a pipe joint and a pipe joint nut for connecting an indoor unit connecting pipe and an outdoor unit connecting pipe.
In order to achieve the above object, the present invention provides a disassembly-preventing pipe joint assembly, comprising:
the pipe joint comprises a pipe joint body, wherein one end of the pipe joint body is a threaded end, the other end of the pipe joint body is connected with a refrigerant pipe, a limiting piece is convexly arranged in the middle of the pipe joint body, and a first wedge-shaped tooth extending along the circumferential direction is arranged on the side surface of the limiting piece, which is away from the threaded end;
the connecting pipe nut assembly comprises a connecting pipe and a connecting pipe nut connected with the connecting pipe, and one end of the connecting pipe, which is far away from the connecting pipe nut, is connected with a refrigerant pipe;
the anti-reversion clamping cap is provided with a containing groove, a through hole is formed in the bottom of the containing groove, and a second wedge-shaped tooth matched with the first wedge-shaped tooth is formed on the side wall of the containing groove;
the threaded end penetrates through the through hole and is in threaded connection with the pipe joint nut, and the first wedge-shaped teeth and the second wedge-shaped teeth are meshed so that the pipe joint nut is linked with the pipe joint when the pipe joint nut is reversed.
Preferably, the pipe joint body is further provided with a screwing part, and the bottom wall of the accommodating groove is abutted between the screwing part and the limiting part.
Preferably, an elastic piece is arranged between the bottom wall of the accommodating groove and the screwing part.
Preferably, the outer circumferential surface of the anti-reverse rotation clamping cap is provided with a polygonal surface.
Preferably, the first wedge tooth has a first radially extending drive face and the second wedge tooth has a second radially extending drive face.
Preferably, the number of the first wedge teeth and the second wedge teeth is the same and at least two.
Preferably, the outer circumferential surface of the connecting pipe nut is a polygonal surface, and a plane matched with the outer circumferential surface of the connecting pipe nut is arranged on the inner wall surface of the accommodating groove.
Preferably, the inner side wall of the accommodating groove is a polygonal surface.
Preferably, the second wedge-shaped teeth are arranged on the inner wall surface of the groove bottom of the accommodating groove.
Preferably, one end of the connecting pipe is provided with a conical interface end, the connecting pipe nut is provided with a conical surface section matched with the conical interface end, and one end of the pipe joint connected with the connecting pipe is conical matched with the conical interface end.
The invention also provides an air conditioner, which comprises the anti-disassembly pipe joint assembly, wherein the anti-disassembly pipe joint assembly comprises:
the pipe joint comprises a pipe joint body, wherein one end of the pipe joint body is a threaded end, the other end of the pipe joint body is connected with a refrigerant pipe, a limiting piece is convexly arranged in the middle of the pipe joint body, and a first wedge-shaped tooth extending along the circumferential direction is arranged on the side surface of the limiting piece, which is away from the threaded end;
the connecting pipe nut assembly comprises a connecting pipe and a connecting pipe nut connected with the connecting pipe, and one end of the connecting pipe, which is far away from the connecting pipe nut, is connected with a refrigerant pipe;
the anti-reverse clamping cap is provided with a containing groove, a through hole is formed in the bottom of the containing groove, a second wedge-shaped tooth matched with the first wedge-shaped tooth is formed on the side wall of the containing groove, and the anti-reverse clamping cap is connected with the connecting pipe nut;
the threaded end penetrates through the through hole and is in threaded connection with the connecting pipe nut so as to enable the pipe joint body to be communicated with the connecting pipe; the first wedge teeth and the second wedge teeth are engaged to interlock the adapter nut with the adapter when the adapter nut is reversed.
According to the anti-disassembly pipe joint assembly provided by the invention, the limiting part and the anti-reversion clamping cap are arranged on the pipe joint body, and when the pipe joint body rotates anticlockwise by arranging the first wedge-shaped tooth and the second wedge-shaped tooth which are reversely matched, the pipe joint nut is linked with the pipe joint body, so that the anti-disassembly of the pipe joint assembly is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a tamper evident pipe joint assembly according to the present invention;
FIG. 2 is an exploded view of the anti-disconnect coupling assembly of FIG. 1;
FIG. 3 is a front view of the anti-disconnect coupling assembly of FIG. 1;
FIG. 4 is a cross-sectional view of the anti-disconnect coupling assembly of FIG. 3 taken along line A-A;
FIG. 5 is a schematic view of the anti-reverse nut of the anti-disassembly pipe joint assembly of the present invention;
FIG. 6 is a top view of the anti-reverse nut of the anti-disassembly pipe joint assembly of the present invention;
fig. 7 is a top view of the anti-reverse nut of the anti-disassembly pipe joint assembly of the present invention, taken along line B-B of fig. 6.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 11 | Pipe joint body | 22 | Connecting pipe nut |
| 12 | Threaded end | 221 | Conical surface section |
| 13 | Screw-on part | 3 | Anti-reverse locking cap |
| 14 | Limiting part | 31 | Second wedge teeth |
| 141 | First wedge tooth | 301 | Accommodating groove |
| 21 | Connecting pipe | 302 | Via hole |
| 211 | Conical interface end | 311 | Second transmission surface |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides an anti-disassembly pipe joint assembly.
In an embodiment of the present invention, as shown in fig. 1 to 4, the disassembly-prevention pipe joint assembly includes:
the pipe joint comprises a pipe joint body 11, wherein one end of the pipe joint body 11 is provided with a threaded end 12, the other end is connected with a refrigerant pipe, a limiting piece is convexly arranged in the middle, and a side surface of the limiting piece, which is away from the threaded end 12, is provided with a first wedge-shaped tooth 141 extending along the circumferential direction;
the connecting pipe nut 22 assembly comprises a connecting pipe 21 and a connecting pipe nut 22 connected with the connecting pipe 21, and one end of the connecting pipe 21 far away from the connecting pipe nut 22 is connected with a refrigerant pipe;
the anti-reverse locking cap 3, wherein the anti-reverse locking cap 3 is provided with a containing groove 301, a through hole 302 is formed at the bottom of the containing groove 301, a second wedge-shaped tooth 31 matched with the first wedge-shaped tooth 141 is formed on the side wall of the containing groove 301, and the anti-reverse locking cap 3 is connected with the connecting pipe nut 22;
the threaded end 12 is threaded through the via 302 with the nipple nut 22; the first wedge teeth 141 and the second wedge teeth 31 are engaged to interlock with the pipe joint when the union nut 22 is reversed.
In this embodiment, the connection nut 22 is connected to the refrigerant pipe, the pipe joint is connected to another refrigerant pipe, and the threaded end 12 is screwed into the connection nut 22 to connect the indoor refrigerant pipe and the outdoor refrigerant pipe. The anti-reverse clamping cap 3 is sleeved with the pipe joint body 11, the second wedge-shaped teeth 31 on the anti-reverse clamping cap 3 are matched with the first wedge-shaped teeth 141 on the end face of the step, the pipe joint is rotated clockwise, the pipe joint is screwed with the pipe joint nut 22, no interaction force exists between the first wedge-shaped teeth 141 and the second wedge-shaped teeth 31 in the screwing process, the pipe joint cannot drive the anti-reverse clamping cap 3 to rotate, when the threaded section is completely screwed into the pipe joint nut 22, the pipe joint nut 22 is sleeved on the anti-reverse nut, and therefore the installation of the pipe joint and the pipe joint nut 22 is completed.
After the installation is completed, when the pipe joint is rotated anticlockwise, under the action of the cooperation of the first wedge-shaped tooth 141 and the second wedge-shaped tooth 31, the pipe joint can drive the anti-reversion clamping cap 3 to rotate anticlockwise, and meanwhile, the anti-reversion clamping cap 3 can drive the connecting pipe nut 22 to rotate anticlockwise, so that the connecting pipe nut 22 and the pipe joint synchronously rotate, namely, when the pipe joint rotates anticlockwise, the connecting pipe nut 22 and the pipe joint cannot rotate relatively, and the anti-disassembly of the pipe joint assembly is realized.
Particularly, the anti-reverse clamping cap 3 and the connecting pipe nut 22 are connected to enable the two to be linked, the anti-reverse clamping cap 3 limits the circumferential rotation of the connecting pipe nut 22, so that a plurality of modes of linkage can be achieved, for example, the anti-reverse clamping cap 3 can be sleeved on the connecting pipe nut 22 in a clamping mode, a limiting hole is formed in the inner wall surface of the accommodating groove, an elastic limiting part is arranged on the outer peripheral surface of the connecting pipe nut 22, or a limiting hole is formed in the outer peripheral surface of the connecting pipe nut 22, and an elastic limiting part is arranged on the inner wall surface of the accommodating groove; the anti-reversion clamping cap 3 and the connecting pipe nut 22 can be provided with communicated limiting holes, and after the two limiting holes are aligned, the two limiting holes are inserted and connected through by the mortise and tenon joint part, so that the relative rotation of the two limiting holes is limited.
In addition, a limiting hole may be formed on the end face of the adapter nut 22 facing the anti-reverse rotation clamping cap 3, a limiting portion adapted to the limiting hole may be formed on the anti-reverse rotation clamping cap 3, or a limiting hole may be formed on the end face of the anti-reverse rotation clamping cap 3 facing the anti-reverse rotation clamping cap 3, a limiting portion may be formed on the adapter nut 22, and the shape of the limiting portion is not limited.
Preferably, the annular stop 14 is disposed adjacent the threaded end 12 to reduce the size of the coupling.
The outer peripheral surface of the pipe joint body 11 is a smooth surface, and the through hole 302 is a smooth surface adapted to the outer peripheral surface of the pipe joint body 11.
The axial length of the peripheral wall of the accommodating groove 301 is slightly larger than that of the adapter nut 22, so that the anti-reverse locking cap 3 can completely sleeve the adapter nut 22.
According to the anti-disassembly pipe joint assembly provided by the invention, the limiting part 14 and the anti-reversion clamping cap 3 are arranged on the pipe joint body 11, and when the pipe joint body 11 rotates anticlockwise by arranging the first wedge-shaped tooth 141 and the second wedge-shaped tooth 31 which are reversely matched, the pipe joint nut 22 is linked with the pipe joint body 11, so that the anti-disassembly of the pipe joint assembly is realized.
Further, as shown in fig. 1 to 7, the pipe joint body 11 is further provided with a screwing portion 13. The bottom wall of the accommodating groove 301 is abutted between the screwing part 13 and the limiting part 14, which is favorable for the abutting connection of the connecting pipe nut 22 and the anti-reverse clamping cap 3, and the engagement of the first wedge-shaped tooth 141 and the second wedge-shaped tooth 31 is ensured. The screwing part 13 and the limiting part 14 are arranged at intervals, and the pipe joint body 11 between the screwing part 13 and the limiting part 13 can be disconnected so as to be sleeved by the anti-reversion clamping cap 3.
Further, the outer peripheral surface of the screwing part 13 is a polygonal surface. In this embodiment, the outer peripheral surface of the screwing part 13 is a polygonal surface, which is helpful for applying force to the screwing part 13 directly by hand or with a wrench.
Further, an elastic member is provided between the end wall and the screw portion 13. In this embodiment, the elastic member is disposed between the screwing portion 13 and the anti-reverse rotation locking cap 3, so that the anti-reverse rotation locking cap 3 is elastically abutted against the screwing portion 13, and the first wedge teeth 141 and the second wedge teeth 31 are tightly abutted against each other, so that the relative sliding is prevented, and the structural connection of the pipe joint assembly is more stable. Further, the elastic piece is a spring. In this embodiment, the spring is sleeved on the pipe joint body 11, so that the elasticity is better.
Further, the outer circumferential surface of the anti-reverse rotation locking cap 3 is provided with a polygonal surface. In this embodiment, the outer peripheral surface of the anti-reverse locking cap 3 is a polygonal surface, and rotating the anti-reverse locking cap 3 counterclockwise can rotate the union nut 22 counterclockwise relative to the pipe joint body 11, so that the union nut 22 and the pipe joint can be screwed.
Further, the first wedge teeth 141 have a first radially extending drive surface and the second wedge teeth 31 have a second radially extending drive surface.
In this embodiment, when the first wedge tooth 141 and the second wedge tooth 31 are matched, the first transmission surface and the second transmission surface 311 are abutted, when the pipe joint rotates clockwise relative to the pipe joint nut 22 or the anti-reverse rotation blocking cap 3 rotates anticlockwise relative to the pipe joint, no interaction force exists between the first transmission surface and the second transmission surface 311, and when the pipe joint rotates anticlockwise relative to the pipe joint nut 22 or the anti-reverse rotation blocking cap 3 rotates clockwise relative to the pipe joint, the interaction force of the second transmission surface 311 pointing to the first transmission surface is provided. The first transmission surface and the second transmission surface 311 extend along the radial direction, and when the anti-reverse rotation blocking cap 3 rotates relative to the pipe joint, the interaction force between the first transmission surface and the second transmission surface 311 is perpendicular to the first transmission surface and the second transmission surface 311.
Further, the number of the first wedge teeth 141 and the second wedge teeth 31 is the same and at least two. In this embodiment, the greater the number of the first wedge teeth 141 and the second wedge teeth 31, the greater the number of the first transmission surface and the second transmission surface 311, and the better the interaction effect when the anti-reverse rotation chuck cap 3 and the pipe joint are reversely rotated.
Further, the outer circumferential surface of the adapter nut 22 is a polygonal surface, and a plane adapted to the outer circumferential surface of the adapter nut 22 is provided on the inner wall surface of the accommodating groove 301. In this embodiment, at least one plane should be disposed on the inner wall surface of the accommodating groove 301, and even if a plane is disposed, circumferential limitation between the inner circumferential surface of the adapter nut 22 and the inner wall surface of the anti-reverse nut 3 can be achieved.
Further, the inner side wall of the accommodating groove 301 is a polygonal surface. In the present embodiment, the inner side wall of the accommodating groove 301 only has two prismatic surfaces corresponding to the prismatic surfaces of the outer peripheral surface of the adapter nut 22, so that the two prismatic surfaces can be linked, and the two prismatic surfaces are opposite prismatic surfaces, so that the transmission effect is better. The more the number of lands, the greater the interlocking effect, and the better the effect when the number of lands of the inner side wall of the accommodation groove 301 is the same as the number of lands of the outer peripheral surface of the adapter nut 22. The outer peripheral surface of the union nut 22 is preferably hexagonal
Further, the second wedge teeth 31 are provided on the inner wall surface of the bottom of the accommodating groove 301. In the present embodiment, the second wedge-shaped teeth 31 are disposed on the inner wall surface of the bottom of the accommodating groove 301, which is more stable and convenient for processing.
Further, one end of the connecting pipe 21 is provided with a conical interface end 211, the connecting pipe nut 22 is provided with a conical section 221 adapted to the conical interface end 211, and one end of the pipe joint body connected with the connecting pipe is conical adapted to the conical interface end.
In this embodiment, during installation, one end of the union nut 22 away from the conical surface section 221 is sleeved with the union 21 from one end of the union 21 away from the conical interface end 211, the conical surface section 221 is sleeved on the outer circumferential surface of the conical interface end 211, the two are in surface contact, and as the union joint is screwed into the union nut 22, the union joint pushes the union 21 and the union nut 22 to be in contact more tightly, so that the tightness between the union nut and the union nut is facilitated, and preferably, one end of the union joint is also a conical surface end and is in contact with the inner circumferential surface of the conical interface end 211.
The invention also provides an air conditioner which comprises the anti-disassembly pipe joint assembly, and the specific structure of the anti-disassembly pipe joint assembly refers to the embodiment, and as the air conditioner adopts all the technical schemes of all the embodiments, the air conditioner at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (11)
1. A tamper evident pipe joint assembly, comprising:
the pipe joint comprises a pipe joint body, wherein one end of the pipe joint body is a threaded end, the other end of the pipe joint body is connected with a refrigerant pipe, a limiting piece is convexly arranged in the middle of the pipe joint body, and a first wedge-shaped tooth extending along the circumferential direction is arranged on the side surface of the limiting piece, which is away from the threaded end;
the connecting pipe nut assembly comprises a connecting pipe and a connecting pipe nut connected with the connecting pipe, and one end of the connecting pipe, which is far away from the connecting pipe nut, is connected with a refrigerant pipe;
the anti-reverse clamping cap is provided with a containing groove, a through hole is formed in the bottom of the containing groove, a second wedge-shaped tooth matched with the first wedge-shaped tooth is formed on the side wall of the containing groove, and the anti-reverse clamping cap is connected with the connecting pipe nut;
the threaded end penetrates through the through hole and is in threaded connection with the pipe joint nut, and the first wedge-shaped teeth and the second wedge-shaped teeth are meshed so that the pipe joint nut is linked with the pipe joint body when the pipe joint nut is reversed.
2. The anti-disassembly pipe joint assembly according to claim 1, wherein the pipe joint body is further provided with a screwing part, and the bottom wall of the accommodating groove is abutted between the screwing part and the limiting piece.
3. The anti-disassembly pipe joint assembly according to claim 2, wherein an elastic member is provided between the bottom wall of the accommodating groove and the screwing portion.
4. The anti-disassembly pipe joint assembly according to claim 1, wherein the outer peripheral surface of the anti-reverse snap cap is provided as a polygonal surface.
5. The split pipe joint assembly as defined in any one of claims 1 to 4, wherein said first wedge tooth has a first radially extending drive surface and said second wedge tooth has a second radially extending drive surface.
6. The split pipe joint assembly according to any one of claims 1 to 4, wherein the first and second wedge teeth are the same number and at least two.
7. The anti-disassembly pipe joint assembly according to claim 1, wherein the outer circumferential surface of the pipe joint nut is a polygonal surface, and the inner wall surface of the accommodating groove is provided with a plane matched with the outer circumferential surface of the pipe joint nut.
8. The anti-disassembly pipe joint assembly according to claim 7, wherein the inner side wall of the accommodating groove is a polygonal surface.
9. The split pipe joint assembly according to claim 1, wherein the second wedge teeth are provided on an inner wall surface of a bottom of the receiving groove.
10. The anti-disassembly pipe joint assembly according to claim 1, wherein one end of the connecting pipe is provided with a conical interface end, the connecting pipe nut is provided with a conical section matched with the conical interface end, and one end of the pipe joint body connected with the connecting pipe is conical matched with the conical interface end.
11. An air conditioner comprising the anti-disassembly pipe joint assembly according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710718711.6A CN109404634B (en) | 2017-08-18 | 2017-08-18 | Anti-disassembly pipe joint assembly and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710718711.6A CN109404634B (en) | 2017-08-18 | 2017-08-18 | Anti-disassembly pipe joint assembly and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109404634A CN109404634A (en) | 2019-03-01 |
| CN109404634B true CN109404634B (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710718711.6A Active CN109404634B (en) | 2017-08-18 | 2017-08-18 | Anti-disassembly pipe joint assembly and air conditioner |
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| Country | Link |
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| CN (1) | CN109404634B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973729A (en) * | 2019-04-11 | 2019-07-05 | 钜溢钢管实业有限公司 | A kind of compressed natural gas steam line |
| CN114458474B (en) * | 2022-03-09 | 2024-02-20 | 成都飞擎航空科技有限公司 | Composite fuel heater |
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| CN207093972U (en) * | 2017-08-18 | 2018-03-13 | 广东美的制冷设备有限公司 | Anti-dismounted tube joint assembly and air conditioner |
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| CN109404634A (en) | 2019-03-01 |
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