CN201439847U - Connecting structure of valve body and pipe and pipe matching with valve body - Google Patents
Connecting structure of valve body and pipe and pipe matching with valve body Download PDFInfo
- Publication number
- CN201439847U CN201439847U CN2009200954692U CN200920095469U CN201439847U CN 201439847 U CN201439847 U CN 201439847U CN 2009200954692 U CN2009200954692 U CN 2009200954692U CN 200920095469 U CN200920095469 U CN 200920095469U CN 201439847 U CN201439847 U CN 201439847U
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- valve body
- pipe fitting
- pipe
- linkage structure
- burr
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Abstract
The utility model provides a connecting structure of a valve body and a pipe, wherein the valve body is provided with an inside hole, the end of the pipe is inserted into the end of the inside hole of the valve body, so the inside of the pipe is communicated with the inside of the valve body; a plurality of raised threads are formed on the peripheral surface of the end of the pipe, and the raised threads and the inner peripheral surface of the inside hole of the valve body are in interference fit; and the utility model also provides a pipe with raised thread. With the scheme, the raised threads are processed on the pipe matching with the valve body through adopting the thread forming technology to make the interference fit of the raised threads and the hole of the valve body, so the phenomena that the welding line is uneven caused by the effect of the self gravity of the pipe during the welding process, and the goal of the concentric location of the pipe in the hole of the valve body is achieved, and a supporting clamp is avoided, and in addition, since the size of the outer diameter of the pipe can be precisely controlled, the welding line formed between the inside hole of the valve body and the peripheral surface of the pipe is even, the welding strength is ensured, and the finished product ration, the welding strength and the sealing reliability of the product are improved.
Description
Technical field
The utility model relates to the linkage structure of a kind of valve body and pipe fitting and the pipe fitting that cooperates with valve body.
Background technique
In refrigeration and aircondition, often use valve member, the valve body of described valve member need link together by soldering processes with the pipe fitting of various sizes usually, and wherein more commonly the automatic brazing of the brass body of heating power expansion valve and red copper or stainless steel pipe is connected.According to existing technology, can carry out for making soldering, between the outer circumferential face of the inner peripheral surface of the internal holes of valve body and pipe fitting, need to leave certain interval.In this case, for positioning valve and pipe fitting, when welding, need use welding fixture to come support tubes.Particularly, in the time need welding automatically a plurality of pipe fittings whiles that valve member is different with size, need a plurality of different support welding fixtures.
Fig. 1 is the valve body 13 of prior art and the schematic cross-section of the linkage structure of pipe fitting 11.Wherein, valve body 13 has internal holes 14, and insert in the end of internal holes 14 of described valve body 13 end of described pipe fitting 11, makes the inside of pipe fitting 11 be communicated with the internal holes 14 of valve body 13.For avoiding pipe fitting 22 to have a down dip in action of gravity, influence welding quality, come support tubes 22 with support fixture 33.Under the condition that pipe fitting 11 is supported by anchor clamps 33, in the attachment portion of the internal holes 14 of valve body 13 and the outer circumferential face of pipe fitting 11, valve body 13 is permanently connected with pipe fitting 11 and is in the same place by soldered seam 16.
The problem that above-mentioned prior art is brought is: 1, easily deformable at the brazing temperature lower clamp, and influence support effect, thereby cause the gap size between valve body and the pipe fitting to change, influence welding effect, cause semi-finished product to scrap or the potential risk of leakage of manufactured good; 2, owing to be subjected to the influence of tubing self gravitation in welding process, the weld seam that forms between the internal holes of valve body and the outer circumferential face of pipe fitting is inhomogeneous, thereby has influenced weld strength; 3, the intervention of welding fixture has reduced welding efficiency, is then to need a large amount of different types of anchor clamps investments in soldering furnace as welding, has increased anchor clamps investment and maintenance cost.
Summary of the invention
Given this, the purpose of this utility model is to overcome at least one aspect of the problems of the prior art and defective.
One of the purpose of this utility model is to provide the linkage structure of a kind of valve body and pipe fitting, and it can be without any need for support fixture and can be self-align in valve body, has omitted a large amount of welding fixtures, thereby enhances productivity and reduce equipment investment.
Another purpose of the present utility model is to provide the linkage structure of a kind of valve body and pipe fitting, it can be eliminated owing to be subjected to the influence of tubing self gravitation in welding process, make the even weld that forms between the outer circumferential face of the internal holes of valve body and pipe fitting, thereby guarantee weld strength.
For achieving the above object, the utility model provides the linkage structure of a kind of valve body and pipe fitting, wherein said valve body has internal holes, insert in the end of internal holes of described valve body the end of described pipe fitting, make the inside of pipe fitting be communicated with the internal holes of valve body, it is characterized in that: on the outer circumferential face of the end of pipe fitting, be formed with a plurality of burrs, form interference fit between the inner peripheral surface of the internal holes of described a plurality of burrs and valve body.
In one embodiment, described a plurality of burr evenly distributes on the circumference of pipe fitting.Alternatively, described burr is to make the end of pipe fitting be out of shape the form of formed projection by cold-press moulding is carried out in the end of pipe fitting.
Alternatively, form soldered seam at the outer circumferential face and the place, the slit between the valve body inner peripheral surface of pipe fitting.
Preferably, the quantity of described burr is 2-8, more preferably 6.
In a kind of specific embodiment, the length of the grafting of described pipe fitting and described valve body part is 5-10mm; Described burr along the length of pipe fitting length direction between 2-6mm; Described burr along the width of pipe fitting circumferencial direction between 1-3mm; The height of the outer circumferential face of described burr protrusion pipe fitting is between 0.1-0.2mm.
Further, form step part in the internal holes of valve body, the end face of described step part is suitable for engaging the terminal surface of described pipe fitting.
Alternatively, described valve body is made by brass; Described pipe fitting is made by red copper or stainless steel or bimetal that the two forms.
According to a further aspect in the invention, a kind of pipe fitting is provided, be suitable for linking together by brazing mode and valve body, make the inside of pipe fitting be communicated with the internal holes of valve body, it is characterized in that, on the outer circumferential face of the end of described pipe fitting, be formed with a plurality of burrs, be used for and the inner peripheral surface of the internal holes of valve body between form interference fit.
Not specific aspect in the technique scheme of the present utility model has following advantage and effect at least:
At first, adopt embossing technology with pipe fitting that valve body cooperates on form burr, make the hole interference fit of described burr and valve body, eliminated owing in welding process, be subjected to the influence of tubing self gravitation and made the uneven phenomenon of weld seam, reach and make pipe fitting concentric locating and fixing purpose in the hole of valve body, thereby exempted the use of support fixture;
Secondly, owing on pipe fitting, formed burr, guaranteed between the inner peripheral surface in the hole of part that does not form burr on the pipe fitting and valve body, to form suitable gap, formed effective capillary phenomenon, guaranteed carrying out smoothly of soldering.
In addition, owing to adopt embossing technology can accurately control the outside dimension of pipe fitting, make the even weld that forms between the outer circumferential face of the internal holes of valve body and pipe fitting, thereby guaranteed weld strength, improved yield rate and the weld strength and the sealing reliability of product.
In addition,,, reduced production setup time, improved manufacturing efficiency, reduced investment because pipe fitting without any need for support fixture and can be self-align in valve body, have been saved a large amount of welding fixtures according to the technical solution of the utility model.
Description of drawings
Fig. 1 is the schematic cross-section of the linkage structure of the valve body of prior art and pipe fitting.
Fig. 2 is the schematic cross-section according to an embodiment's of the present utility model pipe fitting.
Fig. 3 is the end elevation according to an embodiment's of the present utility model pipe fitting.
Fig. 4 is the end elevation according to another embodiment's of the present utility model pipe fitting.
Fig. 5 is the schematic cross-section of the linkage structure of valve body of the present utility model and pipe fitting.
Embodiment
Below in conjunction with accompanying drawing exemplary embodiment of the present utility model is described.
Fig. 2 is the schematic cross-section of an embodiment's of the present utility model pipe fitting.Fig. 3 is the end elevation of the pipe fitting of Fig. 2.According to an embodiment of the present utility model, described pipe fitting 1 is for example made by red copper or stainless steel, and the internal holes that is used for the valve member that uses with aircondition with for example refrigeration is connected.As shown in Figure 2, on the outer circumferential face of the end of pipe fitting 1, be formed with burr 2.Burr 2 evenly distributes on the circumference of pipe fitting 1.Along the circumferential direction equally distributed six burrs 2 have been shown among Fig. 2 and 3.But the quantity of burr 2 can be chosen as the quantity of any appropriate according to the size of for example pipe fitting, welding requirements etc.Usually be chosen as 3-8.The size of burr 2 also can be selected according to pipe fitting size, installation conditions, welding requirements etc.Usually, when when for example refrigeration is connected with the internal holes of the valve member that uses in the aircondition, burr 2 along the length of the length direction of pipe fitting between 2-6mm, between 1-3mm, and the height that protrudes from the side face of pipe fitting is between 0.1-0.2mm along the width of the circumferencial direction of pipe fitting.
Burr 2 can form on pipe fitting 1 with any suitable technology.Referring to Fig. 1 and 2, according to one embodiment of present invention, burr 2 is to utilize for example press tool to make the end of pipe fitting 1 be out of shape the form of formed projection by cold-press moulding is carried out in the end of pipe fitting 1.But the utility model is not limited in this, can adopt any other processing mode to form burr 2 on the outer circumferential face of the end of pipe fitting 1.Referring to Fig. 3, burr 2 is parts that the radial thickness that forms by die casting or machining etc. on the outer circumferential face of pipe fitting 1 increases.
Fig. 4 shows the linkage structure of the valve body 3 that uses in the pipe fitting 1 of Fig. 1 and for example refrigeration and the aircondition.Referring to Fig. 4, valve body 3 has internal holes 4, and insert in internal holes 4 ends of valve body 3 end of pipe fitting 1, makes the inside of pipe fitting 1 be communicated with the internal holes 4 of valve body.On the outer circumferential face of the end of pipe fitting 1, be formed with equally distributed 6 burrs 2, form interference fit between the inner peripheral surface of the internal holes of described burr 2 and valve body 3.
According to embodiments of the invention, valve body 3 is for example made by brass.Form step part 5 on the inner peripheral surface of valve body 3, step part 5 is suitable for engaging the end face of pipe fitting 2.The grafting length partly that step part 5 helps determining valve body 3 and pipe fitting 2 is set, is convenient to installing and locating.For example, referring to Fig. 5, pipe fitting 1 can be 5-10mm with the length L of the grafting part of valve body 3.In this case, the length of burr 2 can be between 2-6mm, and the width of burr can be between 1-3mm, and the height of burr protrusion pipe fitting outer circumferential face can be between 0.1-0.2mm.When in the internal holes 4 of pipe fitting 1 insertion valve body 3 and after forming interference fit, pipe fitting 1 and valve body 3 are self-align mutually, come support tubes and need not re-use any additional anchor clamps.Under this condition, do not form on the pipe fitting 1 between the inner peripheral surface in hole of the part of burr 2 and valve body 3 and form suitable gap, form effective capillary phenomenon, guarantee carrying out smoothly of soldering.Particularly, from the gap of outside between the outer circumferential face of the internal holes 4 of valve body 3 and pipe fitting 1, inject brazing solder, thereby between valve body 3 and pipe fitting 1, form soldered seam 6, be in the same place thereby valve body 13 is permanently connected with pipe fitting 11.
Accompanying drawing has shown the situation that valve body is connected with a pipe fitting, and certainly, the utility model is equally applicable to the situation that valve body and a plurality of pipe fittings are connected simultaneously.Particularly, when adopting structure of the present utility model a plurality of pipe fittings that valve body is different with size to weld automatically simultaneously, can omit the anchor clamps of a plurality of different sizes, have bigger superiority aspect the minimizing equipment investment.
As mentioned above, the utility model provides the linkage structure of a kind of valve body and pipe fitting and the pipe fitting that cooperates with valve body, by form burr on the outer circumferential face of pipe fitting, makes between the inner peripheral surface of internal holes of described burr and valve body and forms interference fit.Make pipe fitting and valve body self-align mutually by interference fit, come support tubes, thereby saved the anchor clamps investment, simplified production process, improved manufacturing efficiency and need not re-use any additional anchor clamps.
Though some embodiments of this present general inventive concept are shown and illustrate, those skilled in the art will appreciate that, under the situation of principle that does not deviate from this present general inventive concept and spirit, can make a change these embodiments, scope of the present utility model limits with claim and their equivalent.
Claims (13)
1. the linkage structure of valve body and pipe fitting, wherein said valve body has internal holes, insert in the end of internal holes of described valve body the end of described pipe fitting, make the inside of pipe fitting be communicated with the internal holes of valve body, it is characterized in that: on the outer circumferential face of the end of pipe fitting, be formed with a plurality of burrs, form interference fit between the inner peripheral surface of the internal holes of described burr and valve body.
2. the linkage structure of valve body according to claim 1 and pipe fitting is characterized in that:
Described a plurality of burr evenly distributes on the circumference of pipe fitting.
3. the linkage structure of valve body according to claim 1 and 2 and pipe fitting is characterized in that:
Described burr is to make the end of pipe fitting be out of shape the form of formed projection by cold-press moulding is carried out in the end of pipe fitting.
4. the linkage structure of valve body according to claim 1 and 2 and pipe fitting is characterized in that:
Place, slit between the inner peripheral surface of the internal holes of the outer circumferential face of pipe fitting and valve body forms soldered seam.
5. the linkage structure of valve body according to claim 1 and 2 and pipe fitting is characterized in that:
The length of the grafting part of described pipe fitting and described valve body is 5-10mm.
6. the linkage structure of valve body according to claim 1 and 2 and pipe fitting is characterized in that:
Described burr along the length of pipe fitting length direction between 2-6mm.
7. the linkage structure of valve body according to claim 1 and 2 and pipe fitting is characterized in that:
Described burr along the width of pipe fitting circumferencial direction between 1-3mm.
8. the linkage structure of valve body according to claim 1 and 2 and pipe fitting is characterized in that:
The height of the outer circumferential face of described burr protrusion valve body is between 0.1-0.2mm.
9. the linkage structure of valve body according to claim 1 and 2 and pipe fitting is characterized in that:
The quantity of described burr is 2-8.
10. the linkage structure of valve body according to claim 1 and 2 and pipe fitting is characterized in that:
The quantity of described burr is 6.
11. the linkage structure of valve body according to claim 1 and 2 and pipe fitting is characterized in that:
Form step part on the inner peripheral surface of the internal holes of valve body, the end face of described step part is suitable for engaging the terminal surface of described pipe fitting.
12. pipe fitting, be suitable for linking together, make the inside of pipe fitting be communicated with, it is characterized in that with the internal holes of valve body by brazing mode and valve body, on the outer circumferential face of the end of described pipe fitting, be formed with a plurality of burrs, be used for and the inner peripheral surface of the internal holes of valve body between form interference fit.
13. pipe fitting according to claim 12 is characterized in that:
Described a plurality of burr evenly distributes on the circumference of pipe fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200954692U CN201439847U (en) | 2009-01-24 | 2009-01-24 | Connecting structure of valve body and pipe and pipe matching with valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200954692U CN201439847U (en) | 2009-01-24 | 2009-01-24 | Connecting structure of valve body and pipe and pipe matching with valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201439847U true CN201439847U (en) | 2010-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200954692U Expired - Lifetime CN201439847U (en) | 2009-01-24 | 2009-01-24 | Connecting structure of valve body and pipe and pipe matching with valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201439847U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848139A (en) * | 2012-06-08 | 2013-01-02 | 浙江三花制冷集团有限公司 | Connection pipe, production method thereof and gas collection tube assembly |
| CN103174860A (en) * | 2011-12-22 | 2013-06-26 | 浙江三花股份有限公司 | Fixing structure of connecting tube and valve seat |
| CN103968128A (en) * | 2014-05-23 | 2014-08-06 | 张红霞 | Reversing valve for improved refrigerating or heating system |
| CN105089979A (en) * | 2015-08-18 | 2015-11-25 | 珠海凌达压缩机有限公司 | Exhaust pipe, forming method for exhaust pipe and compressor |
| CN105387263A (en) * | 2015-12-14 | 2016-03-09 | 武汉元丰汽车电控系统有限公司 | Laminating method |
| US11015745B2 (en) | 2018-04-10 | 2021-05-25 | Delavan Inc. | Tube joints, brazed tube joint assemblies, and methods of making tube joints |
-
2009
- 2009-01-24 CN CN2009200954692U patent/CN201439847U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174860A (en) * | 2011-12-22 | 2013-06-26 | 浙江三花股份有限公司 | Fixing structure of connecting tube and valve seat |
| CN103174860B (en) * | 2011-12-22 | 2015-09-09 | 浙江三花股份有限公司 | The fixed structure of a kind of adapter and valve seat |
| CN102848139A (en) * | 2012-06-08 | 2013-01-02 | 浙江三花制冷集团有限公司 | Connection pipe, production method thereof and gas collection tube assembly |
| CN103968128A (en) * | 2014-05-23 | 2014-08-06 | 张红霞 | Reversing valve for improved refrigerating or heating system |
| CN105089979A (en) * | 2015-08-18 | 2015-11-25 | 珠海凌达压缩机有限公司 | Exhaust pipe, forming method for exhaust pipe and compressor |
| CN105387263A (en) * | 2015-12-14 | 2016-03-09 | 武汉元丰汽车电控系统有限公司 | Laminating method |
| US11015745B2 (en) | 2018-04-10 | 2021-05-25 | Delavan Inc. | Tube joints, brazed tube joint assemblies, and methods of making tube joints |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100421 |
|
| CX01 | Expiry of patent term |