CN105402517B - Air conditioner connecting pipe component and air conditioner - Google Patents
Air conditioner connecting pipe component and air conditioner Download PDFInfo
- Publication number
- CN105402517B CN105402517B CN201510967309.2A CN201510967309A CN105402517B CN 105402517 B CN105402517 B CN 105402517B CN 201510967309 A CN201510967309 A CN 201510967309A CN 105402517 B CN105402517 B CN 105402517B
- Authority
- CN
- China
- Prior art keywords
- connecting pipe
- thread
- nut
- pipe joint
- air conditioner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000004378 air conditioning Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 238000007789 sealing Methods 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- 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
- F16L19/06—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 in which radial clamping is obtained by wedging action on non-deformed pipe ends
- F16L19/07—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 in which radial clamping is obtained by wedging action on non-deformed pipe ends adapted for use in socket or sleeve connections
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The present invention discloses a kind of air conditioner connecting pipe component and air conditioner, wherein, air conditioner connecting pipe component includes indoor set connecting tube, outdoor unit connecting tube, pipe joint, switching nut and operating parts, one end of pipe joint is fixedly connected with indoor set connecting tube, outdoor unit connecting tube has the interface end being sheathed in switching nut, pipe joint is connected through a screw thread mode and is connected on switching nut to dock indoor set connecting tube and outdoor unit connecting tube, it is characterized in that, switching nut is provided with the first motion thread and the first flange, operating parts is provided with the second motion thread screwed with the first motion thread and the end face abutted with the first flange, operating parts can drive switching nut to be screwed with pipe joint when rotating forward, unscrewed in reversion from switching nut.The connection of air conditioner connecting pipe component outside connecting tube of the present invention has the anti-error function of tearing open.
Description
Technical Field
The invention relates to the technical field of air conditioner pipeline connection, in particular to an air conditioner connecting pipe assembly and an air conditioner.
Background
In order to circulate a refrigerant in a conventional air conditioner, it is necessary to connect refrigerant circulation passages of an indoor unit and an outdoor unit by using a joint pipe assembly. When the air conditioner uses flammable refrigerant (such as R-290 refrigerant), in order to ensure the safety, the indoor side is required to adopt a non-detachable connection mode.
The existing connecting pipe assembly generally includes an indoor unit connecting pipe, an outdoor unit connecting pipe, a pipe joint and a pipe joint nut, wherein the pipe joint is fixedly connected with the indoor unit connecting pipe, the pipe joint is in threaded fit with the pipe joint nut to butt the outdoor unit connecting pipe, and the pipe joint nut can be screwed and unscrewed by a wrench. Therefore, in the existing connecting pipe assembly, a user can easily disassemble the pipe joint and the connecting pipe nut when disassembling, so that certain potential safety hazards exist.
Disclosure of Invention
The invention mainly aims to provide an air conditioner connecting pipe assembly, and aims to provide an air conditioner connecting pipe assembly capable of preventing a user from being mistakenly detached.
In order to achieve the above object, the air conditioner connecting pipe assembly provided by the present invention includes an indoor unit connecting pipe, an outdoor unit connecting pipe, a pipe joint, a coupling nut, and an operating element, wherein one end of the pipe joint is fixedly connected to the indoor unit connecting pipe, the outdoor unit connecting pipe has an interface end sleeved in the coupling nut, and the pipe joint is connected to the coupling nut in a threaded connection manner to butt the indoor unit connecting pipe and the outdoor unit connecting pipe.
Preferably, the first transmission thread is a multi-thread external thread arranged on the outer wall surface of the adapter nut, and the second transmission thread is a multi-thread internal thread arranged on the inner wall surface of the operation member and matched with the multi-thread external thread.
Preferably, the multi-start external thread is a double-start external thread and the multi-start internal thread is a double-start internal thread.
Preferably, the inner wall surface of the adapter nut is provided with a single-line internal thread, and the outer wall surface of the pipe joint is provided with a single-line external thread matched with the single-line internal thread.
Preferably, an abutting surface of the operating element, which abuts against the first flange, is an annular flat surface.
Preferably, the outer wall surface of the pipe joint is provided with a second flange abutted against the end surface of the adapter nut, and the second flange is arranged adjacent to the indoor unit connecting pipe; the second flange extends circumferentially around the axis of the pipe joint and is annularly arranged, and the outer peripheral surface of the second flange is a polygonal surface.
Preferably, the outer peripheral surface of the operating member is a polygonal surface.
Preferably, the interface end is arranged to be gradually expanded towards the pipe joint, an inner wall surface of the adapting nut is provided with a conical surface section matched with the interface end, and the pipe joint is abutted against the inner wall surface of the interface end.
Preferably, the end of the pipe joint embedded in the adapting nut is a conical head matched with the interface end.
The invention also provides an air conditioner, which comprises an indoor unit, an outdoor unit and the air conditioner connecting pipe assembly for connecting the indoor unit and the outdoor unit, wherein the air conditioner connecting pipe assembly comprises an indoor unit connecting pipe, an outdoor unit connecting pipe, a pipe joint, a switching nut and an operating piece, one end of the pipe joint is fixedly connected with the indoor unit connecting pipe, the outdoor unit connecting pipe is provided with a connector end sleeved in the switching nut, the pipe joint is connected to the switching nut in a threaded connection mode so as to butt joint the indoor unit connecting pipe and the outdoor unit connecting pipe, the air conditioner is characterized in that the switching nut is provided with a first transmission thread and a first flange, the operating piece is provided with a second transmission thread screwed with the first transmission thread and an end surface abutted against the first flange, and the operating piece can drive the switching nut to be screwed with the pipe joint when rotating forwards, and unscrews from the adapter nut during reverse rotation.
The air conditioner connecting pipe assembly is in sleeve joint with the pipe joint by matching the adapter nut with the operating piece, and when the adapter nut and the pipe joint need to be locked, the operating piece is rotated in a forward direction to drive the adapter nut to rotate; after the switching nut is locked with the pipe joint, when the operating piece is rotated reversely, the operating piece can rotate relative to the switching nut, and the switching nut is prevented from rotating reversely relative to the pipe joint, so that the aim of locking the switching nut is fulfilled, and the aim of preventing the switching nut from being detached after the switching nut is locked with the pipe joint is fulfilled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of an air conditioner connecting pipe assembly according to an embodiment of the present invention;
FIG. 2 is a schematic view of the air adjustment coupling tube assembly of FIG. 1 at another angle;
FIG. 3 is a front view of the air adjustment connection pipe of FIG. 1;
FIG. 4 is a schematic cross-sectional view taken along line IV-IV of FIG. 3;
fig. 5 is an exploded view of the air conditioning coupling pipe assembly of fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Indoor machine connecting pipe | 32 | Second flange | 44 | Conical surface section |
| 2 | Outdoor machine connecting pipe | 4 | Switching nut | 5 | Operating element |
| 21 | Interface end | 41 | Multi-thread external thread | 51 | Multi-thread internal thread |
| 3 | Pipe joint | 42 | First flange | ||
| 31 | Single thread external thread | 43 | Single internal thread |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 5, in an embodiment of the present invention, an air conditioner connecting pipe assembly includes an indoor unit connecting pipe 1, an outdoor unit connecting pipe 2, a pipe joint 3, a coupling nut 4, and an operating element 5; wherein,
one end of the pipe joint 3 is fixedly connected with the indoor unit connecting pipe 1, the outdoor unit connecting pipe 2 is provided with a joint end 21 sleeved in the adapter nut 4, and the pipe joint 3 is connected to the adapter nut 4 in a threaded connection mode so as to butt the indoor unit connecting pipe 1 and the outdoor unit connecting pipe 2;
be equipped with first transmission screw thread and first flange 42 on the switching nut 4, operating parts 5 is equipped with the second transmission screw thread that closes soon with first transmission screw thread and the terminal surface of the butt with first flange 42, and operating parts 5 can drive switching nut 4 and coupling 3 and close soon when forward or forward rotation, unscrews from switching nut 4 when reverse or reverse rotation.
In this embodiment, the indoor unit connection pipe 1 and the pipe joint 3 are generally connected at the time of shipment, and after-sales installation is not necessary, and the indoor unit connection pipe 1 and the pipe joint 3 are connected by welding. Preferably, the adapter nut 4 is threadedly engaged with the pipe joint 3 to simultaneously achieve the locking and sealing functions.
The outdoor machine connecting pipe 2 is connected with the adapter nut 4 in a rotatable matching manner; the pipe joint 3 is spirally embedded in the adapter nut 4 and is in self-locking fit with the adapter nut 4;
one end of the pipe joint 3 is fixedly connected with an indoor unit connecting pipe 1, and the other end of the pipe joint is in threaded connection with the adapter nut 4; the interface end 21 of the outdoor unit connecting pipe 2 is located between the adapter nut 4 and the pipe joint 3, and the other end extends out of the adapter nut 4.
The operating member 5 is annularly disposed and sleeved on the periphery of the adapting nut 4, and is used for driving the adapting nut 4 to be screwed with the pipe joint 3 during forward or forward rotation, and preventing the adapting nut 4 from rotating relative to the pipe joint 3 during reverse or reverse rotation.
The inner wall of the operating part 5 is provided with a second transmission thread which is matched with the first transmission thread arranged on the outer wall of the adapter nut 4 and is used for driving the adapter nut 4 to be screwed with the pipe joint 3 in the forward or forward direction, and when the operating part 5 is applied with force in the reverse or reverse direction, the operating part 5 rotates relative to the adapter nut 4.
The air conditioner connecting pipe assembly is in sleeve joint with the pipe joint 3 by matching the adapter nut 4 with the operating part 5, and when the adapter nut 4 and the pipe joint 3 need to be locked, the operating part 5 is rotated forwardly or forwardly to drive the adapter nut 4 to rotate; after the adapting nut 4 is locked with the pipe joint 3, when the operating part 5 is rotated reversely or reversely, the operating part 5 can rotate relative to the adapting nut 4 to prevent the adapting nut 4 from rotating reversely or reversely relative to the pipe joint 3, so that the aim of locking the adapting nut 4 is fulfilled, and the aim of preventing the adapting nut 4 from being mistakenly disassembled after being locked with the pipe joint 3 is fulfilled.
Further, referring to fig. 4 and 5, in an embodiment, the second transmission thread is a multi-thread internal thread 51 disposed on an inner wall surface of the operating member 5, and the first transmission thread is a multi-thread external thread 41 disposed on an outer wall surface of the adapter nut 4 and adapted to the multi-thread internal thread 51;
referring to fig. 1 to 3, the outer wall surface of the adapter nut 4 is provided with the first flange 42 abutting against the end surface of the operation element 5, and the first flange 42 is disposed adjacent to the indoor unit connection pipe 1.
In this embodiment, the transmission thread has a larger lead angle, so that the friction force formed by the screwing of the internal thread and the external thread is smaller, and therefore, when the operating member 5 rotates reversely or reversely, the friction torque therebetween is much smaller than the reaction force of the self-locking fit of the adapter nut 4 and the pipe joint 3. Specifically, when the operating element 5 is rotated to abut the first flange 42 during assembly, the engagement between the multiple male threads 41 and the multiple female threads 51 is only for transmitting torque.
Further, the multiple-start external thread 41 is a double-start external thread, and the multiple-start internal thread 51 is a double-start internal thread. In the present embodiment, since the cost for machining the double-thread is relatively low, the operating element 5 and the adapting nut 4 are matched by the double-thread, so that the cost advantage of the air conditioner connecting pipe assembly of the present embodiment can be improved.
Further, the inner wall surface of the adapter nut 4 is provided with a single-thread internal thread 43, and the outer wall surface of the pipe joint 3 is provided with a single-thread external thread 31 matched with the single-thread internal thread 43. In this embodiment, single thread processing is simple, and because the thread lead angle is less, and the effort of locking back auto-lock cooperation is big, therefore locking strength is high, simultaneously, also can realize better sealing effect.
Further, the contact surface formed by the end surface of the operation element 5 contacting the first flange 42 is an annular flat surface. The moment is directly transmitted by the abutting connection of the end surface of the operating piece 5 and the first flange 42, so that the air conditioner connecting pipe assembly is simple in structure and saves the manufacturing cost.
Further, a second flange 32 abutting against the end surface of the adapter nut 4 is provided on the outer wall surface of the pipe joint 3, and the second flange 32 is provided adjacent to the indoor unit connection pipe 1.
In the present embodiment, after the adapter nut 4 and the pipe joint 3 are screwed in place, the second flange 32 abuts against the adapter nut 4 to prevent the screw thread between the adapter nut 4 and the pipe joint 3 from being damaged due to excessive screwing in the axial direction.
Preferably, to facilitate screwing or fixing the pipe joint 3, the second flange 32 extends circumferentially around the axis of the pipe joint 3 to be annular, and the outer peripheral surface of the second flange 32 is a polygonal surface.
Further, similarly, in order to facilitate screwing or fixing the operation member 5, the outer peripheral surface of the operation member 5 is a polygonal surface.
Further, the connection end 21 is disposed to be gradually expanded toward the coupling 3, the inner wall surface of the adapter nut 4 has a tapered surface section 44 adapted to the connection end 21, and the coupling 3 abuts against the inner wall surface of the connection end 21.
In the present embodiment, specifically, the inner wall surface of the connection end 21 is in sealing contact with the tapered surface section 44 to achieve sealing engagement between the outdoor unit connection pipe 2 and the adapter nut 4 and enhance the axial connection strength therebetween.
Further, the end of the pipe joint 3 inserted into the adapter nut 4 is a conical head adapted to the interface end 21. In this embodiment, the conical head of the pipe joint 3 is engaged with the interface end 21, so that the contact area between the conical head and the interface end 21 is increased, thereby further enhancing the sealing performance of the outdoor unit connection pipe 2 and preventing the pipe joint 3 from scraping the inner wall surface of the interface end 21.
The present invention further provides an air conditioner, which includes an indoor unit (not shown), an outdoor unit (not shown), and an air conditioner connecting pipe assembly connecting the indoor unit and the outdoor unit, and the specific structure of the air conditioner connecting pipe assembly refers to the above embodiments.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. An air conditioner connecting pipe assembly comprises an indoor unit connecting pipe, an outdoor unit connecting pipe, a pipe joint, a switching nut and an operating piece, wherein one end of the pipe joint is fixedly connected with the indoor unit connecting pipe, the outdoor unit connecting pipe is provided with an interface end sleeved in the switching nut, and the pipe joint is connected to the switching nut in a threaded connection mode so as to be in butt joint with the indoor unit connecting pipe and the outdoor unit connecting pipe;
the first transmission thread is a multi-thread external thread arranged on the outer wall surface of the adapter nut, and the second transmission thread is a multi-thread internal thread arranged on the inner wall surface of the operation part and matched with the multi-thread external thread;
the inner wall surface of the adapter nut is provided with a single-line internal thread, and the outer wall surface of the pipe joint is provided with a single-line external thread matched with the single-line internal thread.
2. The air conditioning connector tube assembly of claim 1, wherein the multi-start external thread is a double start external thread and the multi-start internal thread is a double start internal thread.
3. An air conditioning connecting pipe assembly as claimed in any one of claims 1 to 2, wherein the abutment surface formed by the end surface of the operating member abutting against the first flange is an annular flat surface.
4. The air conditioner connecting pipe assembly as claimed in claim 2, wherein a second flange abutting against an end surface of the adaptor nut is provided on an outer wall surface of the pipe joint, the second flange is provided adjacent to the indoor unit connecting pipe, the second flange extends circumferentially around an axis of the pipe joint to be annularly provided, and an outer circumferential surface of the second flange is a polygonal surface.
5. The air conditioning connector tube assembly of claim 4, wherein the outer peripheral surface of the operating member is a polygonal surface.
6. The air conditioning connector tube assembly of claim 1, wherein said interface end is tapered toward said tube connector, an inner wall surface of said adapter nut having a tapered section that mates with said interface end, said tube connector abutting an inner wall surface of said interface end.
7. The air conditioning connector tube assembly of claim 6, wherein the end of the tube fitting that is inserted into the adapter nut is a tapered head that mates with the interface end.
8. An air conditioner comprising an indoor unit, an outdoor unit, and the air conditioner connection tube assembly as claimed in any one of claims 1 to 7 for connecting the indoor unit and the outdoor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967309.2A CN105402517B (en) | 2015-12-18 | 2015-12-18 | Air conditioner connecting pipe component and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967309.2A CN105402517B (en) | 2015-12-18 | 2015-12-18 | Air conditioner connecting pipe component and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105402517A CN105402517A (en) | 2016-03-16 |
| CN105402517B true CN105402517B (en) | 2017-11-17 |
Family
ID=55468176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510967309.2A Active CN105402517B (en) | 2015-12-18 | 2015-12-18 | Air conditioner connecting pipe component and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402517B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287034B (en) * | 2016-08-18 | 2019-07-16 | 海信（山东）空调有限公司 | A kind of anti-disassembling connecting pipe component, sealing fastening method and air conditioner |
| CN109404634B (en) * | 2017-08-18 | 2023-09-12 | 广东美的制冷设备有限公司 | Anti-disassembly pipe joint assembly and air conditioner |
| CN107631110B (en) * | 2017-10-18 | 2023-08-01 | 台州市路桥振兴机械有限公司 | Nut assembly and connecting method thereof |
| CN109630788A (en) * | 2019-01-25 | 2019-04-16 | 广州市科绿士环保设备有限公司 | A kind of heat exchange bimetallic tube sealed connecting component and its installs fixture, installation method |
| CN109578713A (en) * | 2019-01-25 | 2019-04-05 | 广州市科绿士环保设备有限公司 | A kind of double-deck tube seal structure of heat exchange and its installs fixture, installation method |
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| CN203404511U (en) * | 2013-07-24 | 2014-01-22 | 广东美的制冷设备有限公司 | Air conditioner and disassembly-preventing pipe connecting device |
| CN103672224A (en) * | 2012-09-26 | 2014-03-26 | 珠海格力电器股份有限公司 | Pipeline connecting assembly and air conditioner with same |
| CN103672223A (en) * | 2012-09-04 | 2014-03-26 | 珠海格力电器股份有限公司 | Anti-disassembly pipe connecting assembly, device, air conditioner and method |
| CN205207968U (en) * | 2015-12-18 | 2016-05-04 | Tcl空调器(中山)有限公司 | Air conditioner connecting pipe subassembly and air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002005352A (en) * | 2000-06-20 | 2002-01-09 | Fujitsu General Ltd | Connecting device for piping |
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2015
- 2015-12-18 CN CN201510967309.2A patent/CN105402517B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2292956Y (en) * | 1997-04-21 | 1998-09-30 | 郭建发 | Leak-proof pipe joint for air conditioner |
| GB2470193A (en) * | 2009-05-12 | 2010-11-17 | F X K Patents Ltd | A connection assembly |
| CN202392315U (en) * | 2011-12-27 | 2012-08-22 | 珠海格力电器股份有限公司 | Air conditioner and anti-disassembly formula coupling and subassembly |
| CN103672223A (en) * | 2012-09-04 | 2014-03-26 | 珠海格力电器股份有限公司 | Anti-disassembly pipe connecting assembly, device, air conditioner and method |
| CN103672224A (en) * | 2012-09-26 | 2014-03-26 | 珠海格力电器股份有限公司 | Pipeline connecting assembly and air conditioner with same |
| CN203404511U (en) * | 2013-07-24 | 2014-01-22 | 广东美的制冷设备有限公司 | Air conditioner and disassembly-preventing pipe connecting device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105402517A (en) | 2016-03-16 |
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