CN103672224B - Pipeline connection part and there is its air conditioner - Google Patents
Pipeline connection part and there is its air conditioner Download PDFInfo
- Publication number
- CN103672224B CN103672224B CN201210364667.0A CN201210364667A CN103672224B CN 103672224 B CN103672224 B CN 103672224B CN 201210364667 A CN201210364667 A CN 201210364667A CN 103672224 B CN103672224 B CN 103672224B
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- Prior art keywords
- pipe joint
- section
- connecting tube
- segment
- pipeline connection
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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
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
- F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
Abstract
The invention provides a kind of pipeline connection part and there is its air conditioner, comprise: union nut, comprise the first internal thread segment being positioned at first end and the second internal thread segment being positioned at the second end, and union nut has cylindrical outer surface, the first connecting tube is arranged on union nut; First pipe joint, comprise force section and the first external thread section, the first external thread section matches with the first internal thread segment, and the second connecting tube is arranged on the first pipe joint; Second pipe joint, be set on the first connecting tube, the second pipe joint comprises pipe joint body and auxiliary nut, and wherein, the first pipe joint has the first axial hole that the first connecting tube is communicated with the second connecting tube.The adapter that pipeline connection part of the present invention really can realize Anti-dismantling connects, and improves the secondary refrigerant leakage problem caused after being disassembled after existing pipeline connects, pipeline is connected tightr; And reduce I&M cost after sale, expand the using scope of combustible refrigerant.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of pipeline connection part and the air conditioner with it.
Background technique
The detachable air conditioner indoor side of current common working medium all uses pipe joint to be connected evaporator joint pipe and outdoor unit connecting tube with the mode of union nut.The outer surface of existing union nut is prismatic surface, there is force tangent plane, pipe joint is generally integral type pipe joint, primarily of thread section and prismatic surface section two-part composition, during by applying clockwise moment to prismatic surface section, thread section rotates together with prismatic surface section, can closely cooperate with union nut; But, when applying anticlockwise moment in prismatic surface section, driving thread section to rotate together also simultaneously, therefore can unclamp with coordinating of union nut, thus there is dismountable possibility.
Require in EN60335-2-40 standard to use inside the air conditioner chamber of combustible refrigerant and do not allow to reuse detachable connector, this is because the connection between pipe joint and union nut gets loose, coolant leakage can be caused and then cause the generation of security incident.
In order to solve the non-compliant problem of demountable tube joint, have employed in prior art between evaporator joint pipe and outdoor unit connecting tube and adopting the mode of welding to connect.Although welding connecting mode meets standard, be welded to connect the attended operation making vaporizer and connecting tube complicated, and be welded to connect and can bring certain trouble to follow-up maintenance.
Summary of the invention
The present invention aims to provide a kind of pipeline connection part of Anti-dismantling and has its air conditioner.
To achieve these goals, according to an aspect of the present invention, provide a kind of pipeline connection part, comprise: union nut, comprise the first internal thread segment being positioned at first end and the second internal thread segment being positioned at the second end, and union nut has cylindrical outer surface, the first connecting tube is arranged on union nut; First pipe joint, comprise force section and the first external thread section, the first external thread section matches with the first internal thread segment, and the second connecting tube is arranged on the first pipe joint; Second pipe joint, be set on the first connecting tube, second pipe joint comprises pipe joint body and auxiliary nut, wherein, pipe joint body comprises at the first paragraph of first end with at the second segment of the second end and the intermediate section between first paragraph and second segment, first paragraph is the second external thread section, second external thread section matches with the second internal thread segment, intermediate section has cylindrical outer surface and its radial dimension is greater than the radial dimension of second segment, and intermediate section on the end face of second segment, form driven tooth; Auxiliary nut is set on second segment, auxiliary nut is provided with towards the end face of intermediate section and coordinates and the force tooth rotated for driving tube joint body with driven tooth, auxiliary nut has force-applying surface, wherein, first pipe joint has the first axial hole that the first connecting tube is communicated with the second connecting tube, and second segment is provided with the limited part for spacing auxiliary nut.
Further, the middle part of union nut has the blocked part radially extended internally, blocked part is between the first internal thread segment and the second internal thread segment, blocked part is formed with conical surface shape groove on the end face of the first pipe joint, the shape of the end of the first external thread section of the first pipe joint and the shape of conical surface shape groove suitable, the end clips of the first connecting tube is located between the end of conical surface shape groove and the first external thread section.
Further, be provided with the first Sealing between the second external thread section and the first connecting tube, one end towards blocked part of the first Sealing abuts with blocked part, is provided with the second Sealing between the first pipe joint and union nut.
Further, pipe joint body has the second axial hole wearing the first connecting tube, second axial hole comprises the first hole section and the second hole section that first end to the second end along pipe joint body sets gradually, first hole section is conical surface shape, first hole section expands ground from inside to outside gradually and stretches out and backstop first Sealing, and circumferential exterior surface and the first hole section of the first Sealing are suitable.
Further, the second axial hole also comprises the 3rd hole section between the first hole section and the second hole section, and the aperture of the 3rd hole section is greater than the aperture of the second hole section.
Further, blocked part is provided with towards the first Sealing and the lug boss abutted with the first Sealing towards the end face of the second end of union nut.
Further, in the form of a ring, lug boss is bulge loop in blocked part.
Further, the first pipe joint is provided with accommodation annular groove, and the second Sealing is folded in and holds between annular groove and union nut, holds annular groove between force section and the first external thread section.
Further, the second Sealing is annular seal ring.
Further, the second segment of pipe joint body is the 3rd external thread section, and the outside thread of the 3rd external thread section forms limited part, and auxiliary nut has the threaded interior hole coordinated with the 3rd external thread section.
Further, limited part comprises: limited ring groove, is arranged on the second segment of pipe joint body; Sealing shield ring, is removably disposed in limited ring groove, and Sealing shield ring has the breach for dismantling; Spring, its first end is supported on the end face of auxiliary nut, and the second end of spring is limited to Sealing shield ring.
Further, limited part comprises: stop lug, is arranged on the second segment of pipe joint body; Spring, its first end is supported on the end face of auxiliary nut, and the second end of spring is limited to stop lug.
According to a further aspect in the invention, provide a kind of air conditioner, the outdoor unit connecting tube comprising heat exchanger and be connected with the connecting tube of heat exchanger, the connecting tube of heat exchanger is connected by above-mentioned pipeline connection part with outdoor unit connecting tube.
Apply technological scheme of the present invention, when pipeline connection part is installed, first be located in union nut by the first connecting tube (i.e. outdoor unit connecting tube), the second connecting tube (i.e. evaporator joint pipe) and the first pipe joint weld together.During connection, two spanners are utilized to assemble.Particularly, first with hand, the first external thread section of the first pipe joint is screwed to certain distance in the first internal thread segment, the pipe joint body of the second pipe joint is also screwed to certain distance in the second internal thread segment.Re-use the force section that the first pipe joint clamped by a spanner, when another spanner is used for applying clockwise moment to auxiliary nut, coordinating of the driven tooth of its force tooth and pipe joint body, independently pipe joint body and auxiliary nut two part energy synchronous rotaries, and then driving tube joint body rotates screw-in in the first internal thread segment, in this process, first external thread section of the first pipe joint also screws in in the first internal thread segment simultaneously, thus completes the connection between the first connecting tube and the second connecting tube.After installation, the limited part on the second segment of pipe joint body can make auxiliary nut be retained on pipe joint body, abnormal sound when avoiding vibrating.
But when applying anticlockwise moment at auxiliary nut, auxiliary nut cannot apply moment of torsion to pipe joint body, ensure that closely cooperating between pipe joint body and union nut, simultaneously, because union nut has cylindrical outer surface, therefore also cannot clamp it to dismantle the first pipe joint, like this, really play the effect of Anti-dismantling.The adapter that pipeline connection part of the present invention really can realize Anti-dismantling connects, and improves the secondary refrigerant leakage problem caused after being disassembled after existing pipeline connects, pipeline is connected tightr; And reduce I&M cost after sale, expand the using scope of combustible refrigerant.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the cross-sectional schematic of the embodiment one according to pipeline connection part of the present invention;
Fig. 2 shows the A place enlarged diagram of the pipeline connection part of Fig. 1;
Fig. 3 shows the decomposition texture schematic diagram of the pipeline connection part of Fig. 1;
Fig. 4 shows the perspective view of the pipe joint body of the pipeline connection part of Fig. 1;
Fig. 5 shows the perspective view of another angle of the pipe joint body of Fig. 4;
Fig. 6 shows the perspective view of the auxiliary nut of the pipeline connection part of Fig. 1;
Fig. 7 shows the perspective view of the first pipe joint of the pipeline connection part of Fig. 1;
Fig. 8 shows the cross-sectional schematic of the union nut of the pipeline connection part of Fig. 1;
Fig. 9 shows the cross-sectional schematic of the embodiment two according to pipeline connection part of the present invention;
Figure 10 shows the schematic front view of the pipe joint body of the pipeline connection part of Fig. 9;
Figure 11 shows the perspective view of the Sealing shield ring of the pipeline connection part of Fig. 9;
Figure 12 shows the cross-sectional schematic of the embodiment three according to pipeline connection part of the present invention; And
Figure 13 shows the schematic front view of the pipe joint body of the pipeline connection part of Figure 12.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figures 1 to 8, the pipeline connection part of embodiment one comprises: union nut 10, first pipe joint 20 and the second pipe joint 30.Union nut 10 comprises the first internal thread segment 11 being positioned at first end and the second internal thread segment 12 being positioned at the second end, and union nut 10 has cylindrical outer surface, and the first connecting tube 1 is arranged on union nut 10.First pipe joint 20 comprises force section 21 and the first external thread section 22, and force section 21 is preferably prism section, and the first external thread section 22 matches with the first internal thread segment 11, and the second connecting tube 2 is arranged on the first pipe joint 20.Second pipe joint 30, be set on the first connecting tube 1, second pipe joint 30 comprises: pipe joint body 31 and auxiliary nut 32, wherein, pipe joint body 31 comprises the first paragraph being positioned at first end and the second segment being positioned at the second end, and the intermediate section 313 between first paragraph and second segment, first paragraph is the second external thread section 311, second external thread section 311 matches with the second internal thread segment 12, second segment is the 3rd external thread section 312, the outside thread of described 3rd external thread section 312 forms the limited part being used for spacing auxiliary nut 32, intermediate section 313 has cylindrical outer surface and its radial dimension is greater than the radial dimension of the 3rd external thread section 312, and intermediate section 313 on the end face of the 3rd external thread section 312, form driven tooth 313a, the first chisel teeth that this driven tooth 313a preferably along the circumferential direction extends, auxiliary nut 32 is set on the 3rd external thread section 312, auxiliary nut 32 has the threaded interior hole coordinated with the 3rd external thread section 312, auxiliary nut 32 is provided with towards the end face of intermediate section 313 and coordinates and the force tooth 321 rotated for driving tube joint body 31 with driven tooth 313a, this force tooth 321 is preferably the second chisel teeth, auxiliary nut 32 has force-applying surface, this force-applying surface is preferably in prism-shaped, wherein, the first pipe joint 20 has the first axial hole that the first connecting tube 1 is communicated with the second connecting tube 2.
When the pipeline connection part of the present embodiment is installed, be first located in union nut 10 by the first connecting tube 1 (i.e. outdoor unit connecting tube), the second connecting tube 2 (i.e. evaporator joint pipe) and the first pipe joint 20 weld together.During connection, two spanners are utilized to assemble.Particularly, first with hand, the first external thread section 22 of the first pipe joint 20 is screwed to certain distance in the first internal thread segment 11, the pipe joint body 31 of the second pipe joint 30 is also screwed to certain distance in the second internal thread segment 12.Re-use the force section 21 that the first pipe joint 20 clamped by a spanner, when another spanner is used for applying clockwise moment to auxiliary nut 32, the driven tooth 313a of its force tooth 321 and pipe joint body 31 coordinates, independently pipe joint body 31 and auxiliary nut 32 two part energy synchronous rotaries, and then driving tube joint body 31 rotates screw-in in the first internal thread segment 11, in this process, first external thread section 22 of the first pipe joint 20 also screws in in the first internal thread segment 11 simultaneously, thus the connection completed between the first connecting tube 1 and the second connecting tube 2.After installation, the 3rd external thread section 312 of pipe joint body 31 can make auxiliary nut 32 be retained on pipe joint body 31, abnormal sound when avoiding vibrating.
As shown in Figure 3 and Figure 4, the thread pitch of the 3rd external thread section 312 is greater than the thread pitch of the second external thread section 311, increases auxiliary nut 32 and exits stroke, increases lead angle, reduces self-lock force.
But when applying anticlockwise moment at auxiliary nut 32, auxiliary nut 32 cannot apply moment of torsion to pipe joint body 31, ensure that closely cooperating between pipe joint body 31 and union nut 10, simultaneously, because union nut 10 has cylindrical outer surface, therefore also cannot clamp it to dismantle the first pipe joint 20, like this, really play the effect of Anti-dismantling.The pipeline connection part of the present embodiment really can realize the adapter connection of Anti-dismantling, improves the secondary refrigerant leakage problem caused after being disassembled after existing pipeline connects, pipeline is connected tightr; And reduce I&M cost after sale, expand the using scope of combustible refrigerant.
As illustrated in figures 1 and 8, the middle part of union nut 10 has the blocked part 13 radially extended internally, blocked part 13 is between the first internal thread segment 11 and the second internal thread segment 12, blocked part 13 is formed with conical surface shape groove 132 on the end face of the first pipe joint 20, the shape of the end of the first external thread section 22 of the first pipe joint 20 and the shape of conical surface shape groove 132 suitable, the end clips of the first connecting tube 1 is located between conical surface shape groove 132 and the end of the first external thread section 22.The end of the first connecting tube 1 is bell mouth shape, the conical surface shape groove 132 three conical surface of the end of the first pipe joint 20, the first connecting tube 1 and union nut 10 fits tightly and forms crush seal face, and this crush seal face prevents the leakage of refrigerant effectively.
Above-mentioned this sealing surface sealing reliability can because the conical surface of three be subject to destruction in various degree in part itself or production process, as cut, and impurity etc. and reducing or inefficacy.Refrigerant can be caused like this to occur leaking.For the reliability of enhanced leaktightness refrigerant sealing, the first Sealing 50 is provided with between second external thread section 311 and the first connecting tube 1, one end towards blocked part 13 of first Sealing 50 abuts with blocked part 13, is provided with the second Sealing 60 between the first pipe joint 20 and union nut 10.Coordinate in the process of tightening at pipe joint body 31 with union nut 10, the first Sealing 50 can be extruded, coordinate in the process of tightening at the first pipe joint 20 and union nut 10, the second Sealing 60 can be extruded.The flexible seals 50 and 60 that above-mentioned two hardness are relatively low, ensure that conical surface seal can also have second layer sealing layer to play a protective role after losing efficacy on leakage direction.
As shown in Figures 2 to 4, pipe joint body 31 has the second axial hole wearing described first connecting tube 1, second axial hole comprises the first hole section 314 and the second hole section 315 that first end to the second end along pipe joint body 31 sets gradually, first hole section 314 is in conical surface shape, first hole section 314 expand gradually from inside to outside ground stretch out and the circumferential exterior surface of backstop first Sealing 50, first Sealing 50 and the first hole section 314 suitable.Easier wedging between first hole section 314 of conical surface shape and the first Sealing 50 of conical surface shape, ensures good sealing.First Sealing 50 is preferably the seal ring that outer surface is the conical surface.
Preferably, the aperture of the 3rd hole section the 316, three hole section 316 that the second axial hole also comprises between the first hole section 314 and the second hole section 315 is greater than the aperture of the second hole section 315.First Sealing 50 can partly enter in the 3rd hole section 316 when being squeezed, and is conducive to fitted seal between the two.
As shown in Figure 8, blocked part 13 is provided with towards the first Sealing 50 and the lug boss 131 abutted with the first Sealing 50 towards the end face of the second end of union nut 10.Lug boss 131 contributes to extruding tight first Sealing 50, makes sealing closely.Preferably in the form of a ring, protruding 131 quality awards from the ministry elect bulge loop as in blocked part 13.
As shown in Figure 3 and Figure 7, the first pipe joint 20 is provided with accommodation annular groove 23, second Sealing 60 and is folded between accommodation annular groove 23 and union nut 10, holds annular groove 23 between force section 21 and the first external thread section 22.Hold annular groove 23 and can prevent the second Sealing 60 play vertically.Second Sealing 60 is preferably annular seal ring.
As shown in Figures 9 to 11, the air conditioner of embodiment two and the difference of embodiment one be only the limited part on second segment structure and with auxiliary nut 32 structure with limited part matching part.Particularly, in embodiment two, limited part comprises: limited ring groove 31a, Sealing shield ring 312a and spring 312b.Limited ring groove 31a is arranged on the second segment of pipe joint body 31, Sealing shield ring 312a is removably disposed in limited ring groove 31a, Sealing shield ring 31a has the breach for dismantling, the first end of spring 312b is supported on the end face of auxiliary nut 32, and second end of spring 312b is limited to Sealing shield ring 312a.The elastic force that spring 312b produces can make the force tooth 321 of the driven tooth 313a of pipe joint body 31 and auxiliary nut 32 better coordinate, simultaneously, can also prevent auxiliary nut 32 from coming off when loosening and producing abnormal sound, auxiliary nut 32 can dally and can not depart from pipe joint body 31 under the effect of spring 312b.The endoporus of auxiliary nut 32 is preferably unthreaded hole.
As shown in Figure 12 to Figure 13, the air conditioner of embodiment three and the structural similarity of embodiment two, both differences are only, in embodiment three, limited part utilizes stop lug 31b to instead of limited ring groove 31a in embodiment two and Sealing shield ring 312a.Particularly, in installation process, after auxiliary nut 32 and spring 312b being in place, punching press forms above-mentioned stop lug 31b again.The first end of spring 312b is supported on the end face of auxiliary nut 32, and second end of spring 312b is limited to stop lug 31b.The principle of the limited part in embodiment three is identical with embodiment two, does not repeat them here.
Present invention also offers a kind of air conditioner, according to the outdoor unit connecting tube that the embodiment of air conditioner of the present invention comprises heat exchanger and is connected with the connecting tube of heat exchanger, the connecting tube of heat exchanger is connected by above-mentioned pipeline connection part with outdoor unit connecting tube.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a pipeline connection part, is characterized in that, comprising:
Union nut (10), comprise the first internal thread segment (11) being positioned at first end and the second internal thread segment (12) being positioned at the second end, and described union nut (10) has cylindrical outer surface, the first connecting tube (1) is arranged on described union nut (10);
First pipe joint (20), comprise force section (21) and the first external thread section (22), described first external thread section (22) is matched with described first internal thread segment (11), and the second connecting tube (2) is arranged on described first pipe joint (20);
Second pipe joint (30), be set on described first connecting tube (1), described second pipe joint (30) comprises pipe joint body (31) and auxiliary nut (32), wherein,
Described pipe joint body (31) comprises the first paragraph at first end and the second segment at the second end and the intermediate section (313) between described first paragraph and second segment, described first paragraph is the second external thread section (311), described second external thread section (311) is matched with described second internal thread segment (12), described intermediate section (313) has cylindrical outer surface and its radial dimension is greater than the radial dimension of described second segment, and described intermediate section (313) on the end face of described second segment, form driven tooth (313a);
Described auxiliary nut (32) is set on described second segment, described auxiliary nut (32) is provided with towards the end face of described intermediate section (313) and coordinates with described driven tooth (313a) and force tooth (321) for driving described pipe joint body (31) to rotate, described auxiliary nut (32) has force-applying surface
Wherein, described first pipe joint (20) has the first axial hole that described first connecting tube (1) is communicated with the second connecting tube (2), and described second segment is provided with the limited part for spacing described auxiliary nut (32).
2. pipeline connection part according to claim 1, it is characterized in that, the middle part of described union nut (10) has the blocked part (13) radially extended internally, described blocked part (13) is positioned between described first internal thread segment (11) and the second internal thread segment (12), described blocked part (13) is formed with conical surface shape groove (132) on the end face of described first pipe joint (20), the shape of the end of first external thread section (22) of described first pipe joint (20) and the shape of described conical surface shape groove (132) suitable, the end clips of described first connecting tube (1) is located between described conical surface shape groove (132) and the end of the first external thread section (22).
3. pipeline connection part according to claim 2, it is characterized in that, the first Sealing (50) is provided with between described second external thread section (311) and described first connecting tube (1), one end towards described blocked part (13) of described first Sealing (50) abuts with described blocked part (13), is provided with the second Sealing (60) between described first pipe joint (20) and described union nut (10).
4. pipeline connection part according to claim 3, it is characterized in that, described pipe joint body (31) has the second axial hole wearing described first connecting tube (1), described second axial hole comprises the first hole section (314) and the second hole section (315) that first end to the second end along described pipe joint body (31) sets gradually, described first hole section (314) is in conical surface shape, described first hole section (314) expands ground from inside to outside gradually and stretches out and the first Sealing (50) described in backstop, circumferential exterior surface and the described first hole section (314) of described first Sealing (50) are suitable.
5. pipeline connection part according to claim 4, it is characterized in that, described second axial hole also comprises the 3rd hole section (316) be positioned between described first hole section (314) and the second hole section (315), and the aperture of described 3rd hole section (316) is greater than the aperture of described second hole section (315).
6. pipeline connection part according to claim 3, it is characterized in that, described blocked part (13) are provided with towards described first Sealing (50) and the lug boss (131) abutted with described first Sealing (50) towards the end face of the second end of described union nut (10).
7. pipeline connection part according to claim 6, is characterized in that, described blocked part (13) in the form of a ring, described lug boss (131) is bulge loop.
8. pipeline connection part according to claim 3, it is characterized in that, described first pipe joint (20) is provided with holds annular groove (23), described second Sealing (60) is folded between described accommodation annular groove (23) and union nut (10), and described accommodation annular groove (23) is positioned between described force section (21) and the first external thread section (22).
9. pipeline connection part according to claim 3, is characterized in that, described second Sealing (60) is annular seal ring.
10. pipeline connection part according to claim 1, it is characterized in that, the second segment of described pipe joint body (31) is the 3rd external thread section (312), the outside thread of described 3rd external thread section (312) forms described limited part, and described auxiliary nut (32) has the threaded interior hole coordinated with described 3rd external thread section (312).
11. pipeline connection parts according to claim 1, it is characterized in that, described limited part comprises:
Limited ring groove (31a), is arranged on the second segment of described pipe joint body (31);
Sealing shield ring (312a), be removably disposed in described limited ring groove (31a), described Sealing shield ring (312a) has the breach for dismantling;
Spring (312b), its first end is supported on the end face of described auxiliary nut (32), and the second end of described spring (312b) is limited to described Sealing shield ring (312a).
12. pipeline connection parts according to claim 1, it is characterized in that, described limited part comprises:
Stop lug (31b), is arranged on the second segment of described pipe joint body (31);
Spring (312b), its first end is supported on the end face of described auxiliary nut (32), and the second end of described spring (312b) is limited to described stop lug (31b).
13. 1 kinds of air conditioners, the outdoor unit connecting tube comprising heat exchanger and be connected with the connecting tube of described heat exchanger, is characterized in that, the connecting tube of described heat exchanger is connected by the pipeline connection part according to any one of claim 1 to 12 with outdoor unit connecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210364667.0A CN103672224B (en) | 2012-09-26 | 2012-09-26 | Pipeline connection part and there is its air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210364667.0A CN103672224B (en) | 2012-09-26 | 2012-09-26 | Pipeline connection part and there is its air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103672224A CN103672224A (en) | 2014-03-26 |
| CN103672224B true CN103672224B (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210364667.0A Active CN103672224B (en) | 2012-09-26 | 2012-09-26 | Pipeline connection part and there is its air conditioner |
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| CN (1) | CN103672224B (en) |
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| DE102016101533A1 (en) * | 2016-01-28 | 2017-08-03 | Voss Automotive Gmbh | Coupling body for a plug connection of pipelines, in particular plastic pipelines |
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| DE112018008219T5 (en) * | 2018-12-20 | 2021-09-02 | Mitsubishi Electric Corporation | Pipe joint structure and air conditioner |
| CN109404586A (en) * | 2018-12-31 | 2019-03-01 | 桂林电子科技大学 | A kind of tap with airtight and fluid tight screw thread based on ergonomics improvement |
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2012
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202392315U (en) * | 2011-12-27 | 2012-08-22 | 珠海格力电器股份有限公司 | Air conditioner, removal-proof pipe joint and removal-proof pipe joint component |
| CN202629376U (en) * | 2012-06-08 | 2012-12-26 | 珠海格力电器股份有限公司 | Adapter pipe nut, pipe joint assembly and air conditioner |
| CN202812532U (en) * | 2012-09-26 | 2013-03-20 | 珠海格力电器股份有限公司 | Pipeline connecting assembly and air conditioner provided with the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103672224A (en) | 2014-03-26 |
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