CN107131366B - A kind of connection structure of pipe fitting joint structure and stainless steel pipe and copper pipe - Google Patents
A kind of connection structure of pipe fitting joint structure and stainless steel pipe and copper pipe Download PDFInfo
- Publication number
- CN107131366B CN107131366B CN201710472341.2A CN201710472341A CN107131366B CN 107131366 B CN107131366 B CN 107131366B CN 201710472341 A CN201710472341 A CN 201710472341A CN 107131366 B CN107131366 B CN 107131366B
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- China
- Prior art keywords
- interconnecting piece
- wall
- barrel
- solder
- connection sleeve
- 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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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
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
-
- 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
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/007—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints specially adapted for joining pipes of dissimilar materials
- F16L13/013—Accessories therefor
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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
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
- F16L13/0218—Welded joints having an inner or outer ring
- F16L13/0227—Welded joints having an inner or outer ring having an inner ring
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
Abstract
The present invention relates to a kind of pipe fitting joint structures, including interconnecting piece (24) with connect sleeve (1), the interconnecting piece is made of stainless steel material, and the connection sleeve is made of copper material, and the connection sleeve (1) includes barrel (11);The outer wall (111) of at least most of barrel (11) interior and described positioned at the interconnecting piece (24) of the barrel (11) is matched with the inner wall (211) of the interconnecting piece (24);Step surface (22) are provided on the inside of the connection sleeve with the inner wall of the interconnecting piece (24) of the barrel (11) cooperation, the connection sleeve is provided with positioning step portion at the relatively close step surface, and the step surface of the interconnecting piece has at a distance from axial direction between the positioning step portion of the connection sleeve;The interconnecting piece is with the connection sleeve by being welded and fixed, the outer wall (111) of the barrel (11) and the space between the inner wall (211) of the barrel (11) mating part of the interconnecting piece (24) have solder, process relatively easy convenience in this way.
Description
It is CN201310468951.7 that the application, which is based on former application number of invention patent, and the applying date is on October 10th, 2013,
Apply for the divisional application of entitled " a kind of reservoir muffler ".
Technical field
The invention belongs to refrigeration technology fields, relate generally to the connection between two kinds of different materials pipelines.
Background technique
The product of refrigeration technology field includes domestic air conditioning, refrigerator, refrigerator-freezer etc., these general systems will use copper pipe conduct
Connecting tube connects two components, and in order to easy to connect with copper pipe, many components also all mutually should be copper material and be made.Such as liquid reservoir
Or muffler (reservoir muffler) is the basic element of character in refrigeration system, can not only be used for liquid reservoir in systems using to store is
Extra refrigerant in system;It can also be used as muffler use, the equipment for causing air flow through and noise capable of being effectively reduced.
The reservoir muffler generally used, the cylinder being relatively large in diameter including one section and to be welded in cylinder both ends diameter lesser
Air inlet pipe and an air outlet pipe.The cylinder of the reservoir muffler of traditional device, air inlet pipe and an air outlet pipe are all made of using copper pipe, copper product
Price is high, so that reservoir muffler cost is relatively high, and using the reservoir muffler of copper material, usually needs after welding
By acid cleaning process clean surface, the influence to environment is very big.
In the Chinese invention publication of patent No. ZL201010239596.2, structure as shown in Figure 5 is disclosed, is
Integrally formed cylinder is used into stainless steel material, and air inlet pipe and an air outlet pipe uses copper material.Although such structure section
About departmental cost, when be in the fabrication process, by the barrel soldering of copper entry/exit tracheae and stainless steel material, due to
The welding characteristic of copper material and stainless steel material differs greatly, and such as simple to implement welding, technology difficulty increases, welding quality
Also it is not easy to guarantee, does not promote well in the industry.In addition, the welding temperature of stainless steel material is relatively high, after welding
The heat affecting of copper pipe is increased, material is also partially soft after copper pipe welding, and it easily causes and damages during subsequent manufacture assembling and twists and turns,
After implementing welding under such circumstances simultaneously, the grain size of copper pipe material is coarse, since muffler, liquid reservoir are generally located on
It by compressor, works in the environment of vibration generate stress variation for a long time, in fact it could happen that copper pipe cracking causes thrashing.
It is asking of being solved of those skilled in the art so how to realize being reliably connected between stainless steel tube and copper pipe
Topic.
Summary of the invention
The present invention is able to achieve being reliably connected between stainless steel pipe and copper pipe by providing a kind of pipe fitting joint structure,
To achieve the above object, thus the following technical schemes are provided:
A kind of pipe fitting joint structure, including interconnecting piece with connect sleeve, the interconnecting piece is made of stainless steel material, described
Connection sleeve is made of copper material, and the connection sleeve includes barrel;The barrel is at least most of to be located at the company
In socket part and the outer wall of the barrel is matched with the inner wall of the interconnecting piece;With the interconnecting piece of barrel cooperation
Inner wall step surface is provided on the inside of the connection sleeve, the connection sleeve is arranged at the relatively close step surface
There is positioning step portion, the step surface of the interconnecting piece has at a distance from axial direction between the positioning step portion of the connection sleeve;
The interconnecting piece and the connection sleeve by being welded and fixed, the outer wall of the barrel and the interconnecting piece with the cylinder
Space between the inner wall of portion's mating part has fixed solder.
The connection structure of a kind of stainless steel tube and copper pipe is provided simultaneously, the connection structure includes interconnecting piece and connector sleeve
Cylinder, copper pipe, the interconnecting piece are made of stainless steel material, and the connection sleeve is made of copper material, the connection sleeve packet
Include barrel;The outer wall and the interconnecting piece of at least most of barrel interior and described positioned at the interconnecting piece of the barrel
Inner wall matches;Step is provided on the inside of the connection sleeve with the inner wall of the interconnecting piece of barrel cooperation
Face, the connection sleeve are provided with positioning step portion, the step surface of the interconnecting piece and institute at the relatively close step surface
Stating has axial distance between the positioning step portion of connection sleeve;The interconnecting piece and the connection sleeve are solid by welding
Fixed, the space between the inner wall of the barrel mating part of the outer wall of the barrel and the interconnecting piece, which has, to be fixed
Use solder;One end of the copper pipe is located in the connection sleeve, and the connection sleeve is with the copper pipe by being welded and fixed.
The interconnecting piece is welded and fixed with the connection sleeve by furnace, in the interconnecting piece and the connection before furnace weldering
Welding solder is preset between sleeve, the default welding solder is toward the step surface direction of the interconnecting piece by the interconnecting piece
Step surface limit, the default welding solder is limited toward positioning step portion direction by the positioning step portion, described
Default welding solder melts when furnace welds and has the space between the outer wall of the barrel and the inner wall of the interconnecting piece
There is fixed solder.
The interconnecting piece is welded and fixed with the connection sleeve by furnace, in the interconnecting piece and the connection before furnace weldering
Between sleeve preset welding solder, the default welding solder toward the interconnecting piece step surface axial direction by institute
The step surface limit of interconnecting piece is stated, the default welding solder is in the axial direction toward the positioning step portion by the positioning
Stage portion limit, in pipe fitting joint structure processing, the default welding is first put into the interconnecting piece with solder and limits
In the step surface of the interconnecting piece, the connection sleeve is placed into, the default welding is limited in the connection sleeve with solder
Positioning step portion;The default welding solder melts when furnace welds and makes the outer wall of the barrel and the interconnecting piece
Space between inner wall has fixed solder.
The outer wall of the barrel is provided with guide surface described in guide surface and described in the relatively close step surface side
It is configured to accommodate the receiving portion of default welding solder between terrace;The outer wall of the barrel includes and the interconnecting piece
Inner wall cooperation axially engages section, and the inner wall of the interconnecting piece includes axially engaging section with what the outer wall of the barrel cooperated.
The interconnecting piece is formed by stainless steel tube through rotary pressing processing, and the outer wall of the barrel is provided with convex epirelief or salient point,
Position and the interconnecting piece of the outer wall of the barrel in addition to the convex epirelief or salient point is arranged cooperate with the barrel
There is the solder between partial inner wall.
The inner wall of the interconnecting piece made of not steel Steel material, step surface is set in the relative inner of connection sleeve, and
Positioning step portion is set at the connection relatively close step surface of sleeve, makes the positioning of the step surface and the connection sleeve of interconnecting piece
There is axial distance between stage portion, can be used for placing welding solder in this way, make solder fusing in welding and fill
To connection sleeve barrel outer wall and the interconnecting piece the space between the inner wall of the barrel mating part, this
Sample prescription is just processed.
Detailed description of the invention
Fig. 1: the preferred reservoir muffler structure schematic diagram that the present invention provides;
The enlarged diagram of the end position of reservoir muffler shown in Fig. 2: Fig. 1;
The preferred schematic diagram of connection sleeve of reservoir muffler shown in Fig. 3: Fig. 1;
Fig. 4: the schematic diagram after connecting tube welding in reservoir muffler and flow path of the invention;
Fig. 5: the schematic diagram of the reservoir muffler structure of the prior art.
Symbol description in figure:
1- connection sleeve;
11- barrel, 12- raised end;
13- convex epirelief, 14- guide surface;
15- positioning step portion, 111- outer wall;
2- ontology;
The port 21-, 22- step surface;
The end 23-, 24- interconnecting piece, 211- inner wall;
Connecting tube in 3- flow path.
Specific embodiment
Below in conjunction with specific embodiment, technical solution of the present invention is illustrated, below with a kind of (storage of reservoir muffler
Liquid device or muffler) and its with pipe fitting joint structure is specifically described for the connection of copper pipe.
Fig. 1 is the preferred reservoir muffler structure schematic diagram that the present invention provides;Fig. 2 is the end position of the reservoir muffler
The enlarged diagram set, Fig. 3 are the connection preferred schematic diagram of sleeve.
As shown in Figure 1, Figure 2 and Figure 3.The reservoir muffler that the present invention provides passes through spinning mode using stainless steel pipe
Processing forms ontology 2, is formed at the both ends of ontology 2 by necking and flows into the connectivity port 21 flowed out with fluid for fluid, even
It connects and is provided with step surface 22 on the inner wall 211 of port 21.The both ends of ontology 2 form interconnecting piece 24 simultaneously.
The connection sleeve 1 made of copper tubing includes substantially tubular barrel 11, logical in one end of barrel 11
It crosses outward flanging and forms raised end 12, the tapered guide surface of straight longitudinal axis is formed by necking in the other end of barrel 11
14, it is machined on the outer wall 111 of sleeve 1 along the equally distributed several convex epireliefs 13 in the axis periphery of sleeve 1.
Sleeve 1 is inserted into the connectivity port 21 of ontology 2, makes the outer wall 111 of barrel 11 and the inner wall of connectivity port 21
The end 23 of 211 cooperations, raised end 12 and the connectivity port cooperates.Due to the presence of convex epirelief 13, in outer wall 111 and inner wall
Clearance space is constituted between 211.
The end face compression fit of the end 23 of the raised end 12 and connectivity port 21 of barrel 11 simultaneously implements axially position.
In the assembling process of reservoir muffler, cricoid solder first can be preset in the connectivity port of ontology 2 21 (such as
Weld-ring), it is trapped in weld-ring on step surface 22, then be pressed into connection sleeve 1, the structure between guide surface guide surface 14 and step surface 22
At the receiving portion for accommodating default welding solder.Sub-assembly is placed in furnace soldering equipment and is heated to technological temperature appropriate, solder
It melts and is full of the consolidation for constituting clearance space two parts of completion between outer wall 111 and inner wall 211 since siphon (capillary) acts on,
Constitute reservoir muffler.
Fig. 4 is that the connecting tube 3 in reservoir muffler and flow path of the invention implements the structural schematic diagram after being welded to connect.
As shown in Figure 4.The inner wall front end of barrel 11 is provided with positioning step portion 15, can be incited somebody to action by positioning step portion 15
Pipeline fitting 3 in flow path is located in reservoir muffler.Since the barrel 11 of the connection sleeve 1 of copper material is arranged stainless
The inside of the connectivity port 21 of the ontology 2 of Steel material, so being lacked if occurring bobbin material grains degree big wait during furnace weldering
It falls into, which is likely to occur stress variation in the work of reservoir muffler, but the intensity in the region is by the sheet of stainless steel material
Body 2 guarantees, does not interfere with reservoir muffler integral strength, makes system reliable operation.
Again as shown in Figure 4.After the welding of the connecting tube of the reservoir muffler that the present invention provides and system, combination is only compressed
In the environment, general welding structure and welding manner are exposed to sky for the exposure of end 23 of the end 12 and cylinder 2 that connect sleeve 1
The contact surface of weld seam and air in gas is big, and generation weld corrosion possibility is big, however, it is possible to find out, the structure is due to being convex
Step end face out avoids a possibility that generating weld corrosion, more will not influence this construction reduces the contact surface with air
To reservoir muffler integral strength, keep system work relatively reliable.
In the present invention, the wall thickness that can preferably set barrel 11 is less than the wall thickness of the connectivity port 21, connects sleeve 1
End 12 external profile diameter be less than or equal to its joined together by connectivity port 21 external profile diameter.Reservoir can be improved in this way
The welding of pipeline fitting 3 in muffler and flow path cooperates craftsmanship.Different system users can according to need to be assembled in finished product
Scene is welded to connect the copper connecting tube of different size, and manufacturing firm's product of reservoir muffler is made to realize versatility, is guaranteeing product
Cost is reduced under the premise of soldering reliability, reduces the copper pipe problem on deformation in manufacturing process environmental pollution and transportational process.
In the above-described embodiments, it connects and several salient points also can be set on the outer wall of the barrel of sleeve, can equally rise
To the effect for constituting clearance space between outer wall and inner wall.
In the above-described embodiments, connection sleeve is separately positioned on the inlet end and outlet end of flow path, it should Ke Yili
Solution, according to actual needs, can be positioned only at the inlet end or outlet end of flow path, this also belongs to technical protection of the invention
Range.
The above is only preferably to illustrate preferred embodiment that technical solution of the present invention is enumerated, it is noted that
For those skilled in the art, without departing from the principle of the present invention, several change can also be made
Into and retouching, all these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (12)
1. a kind of pipe fitting joint structure, including interconnecting piece (24) with connect sleeve (1), the interconnecting piece is by stainless steel material system
At the connection sleeve is made of copper material, and the connection sleeve (1) includes barrel (11);The barrel (11) is extremely
It is predominantly located in the interconnecting piece (24) less and the inner wall of the outer wall (111) of the barrel (11) and the interconnecting piece (24)
(211) it matches;It is characterized in that, the inner wall of the interconnecting piece (24) cooperated with the barrel (11) is in the connector sleeve
The inside of cylinder is provided with step surface (22), and the connection sleeve is provided with positioning step portion at the relatively close step surface,
The step surface of the interconnecting piece has at a distance from axial direction between the positioning step portion of the connection sleeve;The interconnecting piece and institute
Connection sleeve is stated by being welded and fixed, the outer wall (111) of the barrel (11) and the interconnecting piece (24) with the cylinder
Space between the inner wall (211) of portion (11) mating part has fixed solder.
2. pipe fitting joint structure as described in claim 1, which is characterized in that the interconnecting piece and the connection sleeve pass through furnace
Weldering is welded and fixed, and presets welding solder before furnace weldering between the interconnecting piece and the connection sleeve, and the default welding is used
Solder is limited toward the step surface direction of the interconnecting piece by the step surface of the interconnecting piece, and the default welding is with solder described in
Positioning step portion direction is limited by the positioning step portion, and the default welding solder melts when furnace welds and makes the cylinder
Space between the outer wall (111) in portion (11) and the inner wall (211) of the interconnecting piece (24) has fixed solder.
3. pipe fitting joint structure as described in claim 1, which is characterized in that the interconnecting piece and the connection sleeve pass through furnace
Weldering is welded and fixed, and presets welding solder before furnace weldering between the interconnecting piece and the connection sleeve, and the default welding is used
Solder is limited in the axial direction of the step surface toward the interconnecting piece by the step surface of the interconnecting piece, the default welding weldering
Expect to be limited in the axial direction toward the positioning step portion by the positioning step portion, in pipe fitting joint structure processing,
The default welding is first put into the interconnecting piece with solder and is limited in the step surface of the interconnecting piece, places into the connector sleeve
Cylinder, the default welding are limited in the positioning step portion of the connection sleeve with solder;The default welding solder is welded in furnace
When melt and there is the space between the outer wall (111) of the barrel (11) and the inner wall (211) of the interconnecting piece (24)
Fixed solder.
4. pipe fitting joint structure a method according to any one of claims 1-3, which is characterized in that the outer wall of the barrel (11) is in phase
It is provided with guide surface (14) to close to the step surface side, is configured between the guide surface (14) and the step surface (22)
Accommodate the receiving portion of default welding solder;The outer wall (111) of the barrel (11) includes the inner wall with the interconnecting piece
(211) what is cooperated axially engages section, and the inner wall (211) of the interconnecting piece includes matching with the outer wall (111) of the barrel (11)
That closes axially engages section.
5. pipe fitting joint structure a method according to any one of claims 1-3, which is characterized in that the interconnecting piece is by stainless steel tube through revolving
Pressure is process, and the outer wall of the barrel is provided with convex epirelief or salient point, and the outer wall (111) of the barrel (11) is except setting institute
It is stating position other than convex epirelief or salient point and the interconnecting piece (24) with the barrel (11) mating part inner wall (211) it
Between have the solder.
6. pipe fitting joint structure as claimed in claim 4, which is characterized in that the interconnecting piece is by stainless steel tube through rotary pressing processing
It forms, the outer wall of the barrel is provided with convex epirelief or salient point, and the outer wall (111) of the barrel (11) is except the setting convex epirelief
Or the position other than salient point and the interconnecting piece (24) has between the inner wall (211) of the barrel (11) mating part
The solder.
7. the connection structure of a kind of stainless steel pipe and copper pipe, the connection structure include interconnecting piece (24) with connect sleeve (1),
Copper pipe, the interconnecting piece are made of stainless steel material, and the connection sleeve is made of copper material, connection sleeve (1) packet
Include barrel (11);Outside at least most of barrel (11) interior and described positioned at the interconnecting piece (24) of the barrel (11)
Wall (111) is matched with the inner wall (211) of the interconnecting piece (24);With the interconnecting piece (24) of the barrel (11) cooperation
Inner wall be provided with step surface (22) on the inside of the connection sleeve, the connection sleeve is at the relatively close step surface
Be provided with positioning step portion, have between the step surface of the interconnecting piece and the positioning step portion of the connection sleeve it is axial away from
From;The interconnecting piece passes through with the connection sleeve to be welded and fixed, the outer wall (111) and the interconnecting piece of the barrel (11)
(24) the space between the inner wall (211) of the barrel (11) mating part has fixed solder;The copper pipe
One end is located in the connection sleeve, and the connection sleeve (1) is with the copper pipe by being welded and fixed.
8. the connection structure of stainless steel pipe as claimed in claim 7 and copper pipe, which is characterized in that the interconnecting piece with it is described
Connection sleeve is welded and fixed by furnace, and welding solder is preset between the interconnecting piece and the connection sleeve before furnace weldering,
The default welding solder is limited toward the step surface direction of the interconnecting piece by the step surface of the interconnecting piece, the default weldering
It connects and is limited toward positioning step portion direction by the positioning step portion with solder, the default welding solder is molten when furnace welds
Change and there is the space between the outer wall (111) of the barrel (11) and the inner wall (211) of the interconnecting piece (24) and fixes
Use solder.
9. the connection structure of stainless steel pipe as claimed in claim 7 and copper pipe, which is characterized in that the interconnecting piece with it is described
Connection sleeve is welded and fixed by furnace, and welding solder is preset between the interconnecting piece and the connection sleeve before furnace weldering,
The default welding solder is limited in the axial direction of the step surface toward the interconnecting piece by the step surface of the interconnecting piece, institute
It states default welding solder to be limited in the axial direction toward the positioning step portion by the positioning step portion, be tied in the connection
When structure is processed, the default welding is first put into the interconnecting piece with solder and is limited in the step surface of the interconnecting piece, places into
The connection sleeve, the default welding are limited in the positioning step portion of the connection sleeve with solder;The default welding is used
Solder melts when furnace welds and makes between the outer wall (111) of the barrel (11) and the inner wall (211) of the interconnecting piece (24)
Space have fixed solder.
10. the connection structure of stainless steel pipe and copper pipe as described in claim 7-9 is any, which is characterized in that the cylinder
The outer wall in portion (11) is provided with guide surface (14) in the relatively close step surface side, the guide surface (14) and the step surface
(22) it is configured to accommodate the receiving portion of default welding solder between;The outer wall (111) of the barrel (11) includes and institute
That states inner wall (211) cooperation of interconnecting piece axially engages section, and the inner wall (211) of the interconnecting piece includes and the barrel (11)
Outer wall (111) cooperation axially engage section.
11. the connection structure of stainless steel pipe and copper pipe as described in claim 7-9 is any, which is characterized in that the connection
Portion is formed by stainless steel tube through rotary pressing processing, and the outer wall of the barrel is provided with convex epirelief or salient point, the barrel (11)
Position and the interconnecting piece (24) of the outer wall (111) in addition to the convex epirelief or salient point is arranged cooperate with the barrel (11)
There is the solder between partial inner wall (211).
12. the connection structure of stainless steel pipe as claimed in claim 10 and copper pipe, which is characterized in that the interconnecting piece is not by
Rust steel pipe is formed through rotary pressing processing, and the outer wall of the barrel is provided with convex epirelief or salient point, the outer wall of the barrel (11)
(111) position in addition to the convex epirelief or salient point are set and the interconnecting piece (24) with the barrel (11) mating part
Inner wall (211) between have the solder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710472341.2A CN107131366B (en) | 2013-10-10 | 2013-10-10 | A kind of connection structure of pipe fitting joint structure and stainless steel pipe and copper pipe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310468951.7A CN103791196B (en) | 2013-10-10 | 2013-10-10 | A kind of reservoir muffler |
CN201710472341.2A CN107131366B (en) | 2013-10-10 | 2013-10-10 | A kind of connection structure of pipe fitting joint structure and stainless steel pipe and copper pipe |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201310468951.7A Division CN103791196B (en) | 2013-10-10 | 2013-10-10 | A kind of reservoir muffler |
Publications (2)
Publication Number | Publication Date |
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CN107131366A CN107131366A (en) | 2017-09-05 |
CN107131366B true CN107131366B (en) | 2019-07-16 |
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Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
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CN201710472455.7A Active CN107314168B (en) | 2013-10-10 | 2013-10-10 | Pipe fitting connecting structure and stainless steel pipe fitting connecting structure |
CN201710232976.5A Active CN107013783B (en) | 2013-10-10 | 2013-10-10 | A kind of muffler |
CN201710472341.2A Active CN107131366B (en) | 2013-10-10 | 2013-10-10 | A kind of connection structure of pipe fitting joint structure and stainless steel pipe and copper pipe |
CN201310468951.7A Active CN103791196B (en) | 2013-10-10 | 2013-10-10 | A kind of reservoir muffler |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
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CN201710472455.7A Active CN107314168B (en) | 2013-10-10 | 2013-10-10 | Pipe fitting connecting structure and stainless steel pipe fitting connecting structure |
CN201710232976.5A Active CN107013783B (en) | 2013-10-10 | 2013-10-10 | A kind of muffler |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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CN201310468951.7A Active CN103791196B (en) | 2013-10-10 | 2013-10-10 | A kind of reservoir muffler |
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CN108730665A (en) * | 2017-04-17 | 2018-11-02 | 新昌县四通机电有限公司 | A kind of muffler assembly |
CN108730666A (en) * | 2017-04-17 | 2018-11-02 | 新昌县四通机电有限公司 | A kind of muffler |
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CN110345319A (en) * | 2018-04-08 | 2019-10-18 | 杭州三花研究院有限公司 | A kind of pipe fitting joint structure, a kind of muffler, a kind of air-conditioning system and a kind of refrigeration system |
CN110385561A (en) * | 2018-04-18 | 2019-10-29 | 杭州三花研究院有限公司 | The manufacturing process of tube assembly and the tube assembly |
WO2020000964A1 (en) * | 2018-06-27 | 2020-01-02 | 广东美的暖通设备有限公司 | Filter, manufacturing method for filter and air conditioner |
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CN111195756A (en) * | 2018-11-19 | 2020-05-26 | 新昌县四通机电有限公司 | Welding method, manufacturing method and refrigerating system |
CN111594669A (en) * | 2019-02-21 | 2020-08-28 | 浙江三花智能控制股份有限公司 | Pipe fitting connecting structure |
JP6879408B1 (en) * | 2020-05-21 | 2021-06-02 | ダイキン工業株式会社 | Pressure vessel and refrigeration equipment |
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Also Published As
Publication number | Publication date |
---|---|
CN103791196A (en) | 2014-05-14 |
CN107013783B (en) | 2019-01-29 |
CN107314168A (en) | 2017-11-03 |
CN107314168B (en) | 2022-02-22 |
CN103791196B (en) | 2017-09-26 |
CN107013783A (en) | 2017-08-04 |
CN107131366A (en) | 2017-09-05 |
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