CN205592474U - Integral type pilot valve - Google Patents
Integral type pilot valve Download PDFInfo
- Publication number
- CN205592474U CN205592474U CN201620318289.6U CN201620318289U CN205592474U CN 205592474 U CN205592474 U CN 205592474U CN 201620318289 U CN201620318289 U CN 201620318289U CN 205592474 U CN205592474 U CN 205592474U
- Authority
- CN
- China
- Prior art keywords
- pilot valve
- inner sleeve
- integral type
- valve
- type pilot
- 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.)
- Expired - Fee Related
Links
- 238000003466 welding Methods 0.000 claims abstract description 17
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- 229910000679 solder Inorganic materials 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 8
- 239000010949 copper Substances 0.000 abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 238000005554 pickling Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract 1
- 238000005496 tempering Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 14
- 238000004140 cleaning Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000005219 brazing Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- HLLSOEKIMZEGFV-UHFFFAOYSA-N 4-(dibutylsulfamoyl)benzoic acid Chemical compound CCCCN(CCCC)S(=O)(=O)C1=CC=C(C(O)=O)C=C1 HLLSOEKIMZEGFV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- -1 copper metals Chemical class 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Landscapes
- Valve Housings (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The utility model provides an integral type pilot valve, including sleeve pipe, filter screen and disk seat, overlap the intraductal multi -functional endotheca that still is equipped with, be equipped with the locating hole that is used for fixing a position the disk seat on the pipe wall of multi -functional endotheca, the rear end of multi -functional endotheca is spacing end and contacts with the case. The utility model discloses carrying on under the circumstances of nonrust tempering at the copper valve body of adoption, disk seat in the pilot valve structure has been solved the disk seat and has installed the contact problem who fixes a position the inhomogeneous atress between difficulty and pipe box and the case. The utility model discloses multi -functional endotheca is used for assembling spacing solid fixed valve seat, avoids simultaneously because of displacement and deformation that the welding exists, leads to disk seat assembly precision bad. The utility model discloses material cost, processing cost and welding cost have been reduced to it need not the mesh that the pickling was handled to reach the surface.
Description
Technical field
This utility model relates to accessory field of freezing, and particularly relates to a kind of integral type pilot valve.
Background technology
Electromagnetism four-way change-over valve is as the important composition parts of refrigeration plant, and its major function is used to switch the flow direction of refrigeration plant coolant, so that the switching that refrigeration plant reaches refrigeration, heats, pilot valve is the control valve of electromagnetism four-way change-over valve.
In existing electromagnetism four-way change-over valve, its pilot valve critical piece valve seat, valve body, capillary tube all use copper material to make, and sleeve pipe uses stainless steel to make.Traditional four-way change-over valve exists following shortcoming:
1, copper product is a kind of noble metal with good plasticity, the most rare along with this several years copper metals, and the price of copper product also becomes much more expensive, adds the production cost of electromagnetism four-way change-over valve；
2, traditional pilot valve valve seat, valve body, capillary tube use flame welding, the valve body of pilot valve and sleeve pipe to use the induction brazing of high silver；Its welding procedure is loaded down with trivial details, welding cost is high；
3, common postwelding product surface all can produce oxide layer, and oxide layer can have a strong impact on outward appearance and the performance of product, need product is carried out pickling, although pickling can remove the portion of oxide layer of product surface, improve product appearance, but acid cleaning process working environment is poor, cost is high, and acid cleaning process is easily to environment, and the environmental consciousness day by day strengthened with society is disagreed.
At present, part producer, for avoiding product postwelding acid cleaning process, takes following improvement:
Existing improvement 1: by existing copper pilot valve structure, its copper valve body, valve seat carry out stainless steel, and rustless steel valve seat uses stainless steel round bar material to carry out machining mode, then carries out furnace brazing to after valve body, valve seat, sleeve pipe assembling.This structure still suffers from shortcoming, although avoiding the induction brazing of high silver and postwelding acid cleaning process, but because stainless steel is difficult to machining, cause fine-processing technique complicated, working (machining) efficiency is low, processing cost is greatly increased, simultaneously because using real core bar section of stainless steel processing, material cost is caused substantially to rise, so this process structure also can not get popularization and application widely.
Existing improvement 2: cancel original pilot valve body, instead of valve body structure by lengthening stainless steel sleeve length of tube；Use semi-cylindrical valve seat to instead of original cylindrical shape pilot valve valve seat simultaneously, then use Welding technique.This structure also still suffers from shortcoming, this structure causes valve seat assembly precision in valve body sleeve pipe to be difficult to ensure that and assembly difficulty is greatly increased, bigger hidden danger also resides in: because in the structure shown here, spacing employing valve seat assembly building when its spool moves back and forth is away from controlling, it is difficult to be accurately positioned due to the assembly precision of valve seat and there is displacement or deformation through welding, so can directly result in pilot valve valve block to close when horizontally slipping and there is error and affect flow, additionally because it is directly to impinge upon on semicircle valve seat that spool slides spacing, this is monolateral its stress of a linear contact lay imbalance, so the slide block of spool front end can directly occur resulting in internal leakage with slide poor fit problem.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of integral type pilot valve, solves valve seat and installs location difficulty and the contact problems of the uneven stress of spool.To this end, this utility model offer techniques below scheme:
A kind of integral type pilot valve, including sleeve pipe, filter screen and valve seat, is additionally provided with multifunctional inner sleeve in described sleeve pipe, the tube wall of described multifunctional inner sleeve is provided with the hole, location for positioning valve seat, and the rear end of described multifunctional inner sleeve is positive stop end and contacts with spool.Multi-functional the including of described multifunctional inner sleeve compresses filter screen function so that filter screen is stronger fixing；Valve seat is produced the function of location, spacing by front-end and back-end, thus reaches to position the function that hole can be spacing to valve body.
Using on the basis of technique scheme, this utility model also can use technical scheme further below:
Described positive stop end and the spool contacted with spool is anchor ring or multiple equilibrium formula contacts.The contact of described multiple equilibrium formula refers to the uniform force of contact point.
Described location hole shape is suitable with valve seat, and described valve seat can snap in hole, location, it is simple to valve seat is in thimble tube intracavity assembling location.Described Kong Kewei processes semicircle column type valve seat profile die cavity holes on multifunctional inner sleeve.
Shape chamber between described multifunctional inner sleeve front portion and sleeve pipe, described chamber is used for placing solder, filter screen, sleeve pipe and multifunctional inner sleeve three is welding as one after described solder fusing.The structures such as Multifunctional casing can be carried out by the part forming chamber, reducing, drawing, Vehicle Processing, components welding realize.
Described multifunctional inner sleeve rear end is plane.
Described multifunctional inner sleeve is low-carbon (LC) steel or stainless steel.
Main valve is connected by capillary tube with described pilot valve, and pilot valve is provided with solenoid.
Owing to using the technical solution of the utility model, the beneficial effects of the utility model are: in this utility model pilot valve structure in the case of using copper valve body, valve seat to carry out stainless steel, solve valve seat and the contact problems of the uneven stress between location difficulty and pipe box and spool be installed.
This utility model multifunctional inner sleeve one end end face spacing end face when spool moves back and forth, by multifunctional inner sleeve end face and spool end, plane-plane contact makes its stress balance, is used for assembling spacing fixed valve base, avoid displacement and the deformation existed because of welding simultaneously, cause valve seat assembly precision bad.
This utility model overcomes that pilot valve parts production cost on existing electromagnetism four-way change-over valve is high, the problem of complex manufacturing, it is provided that a kind of capability and performance is more stable, production technology simple guide valve blocks structure and processing mode；Liner multifunctional inner sleeve in sleeve pipe so that it is sleeve pipe, valve seat, multifunctional inner sleeve, filter screen, capillary tube are easy in stove one weldering.This utility model reduces material cost, processing cost and welding cost, and reaches the surface purpose without pickling processes.
Accompanying drawing explanation
Fig. 1 is the profile in a kind of integral type pilot valve portion assembling process that this utility model provides.
Fig. 2 is the profile in a kind of integral type pilot valve portion that this utility model provides.
Fig. 3-1 is the constructive embodiment one of the multifunctional inner sleeve that this utility model provides.
Fig. 3-2 is the constructive embodiment two of the multifunctional inner sleeve that this utility model provides.
Fig. 3-3 is the constructive embodiment three of the multifunctional inner sleeve that this utility model provides.
Fig. 3-4 is the constructive embodiment four of the multifunctional inner sleeve that this utility model provides.
Fig. 4 is the schematic diagram that pilot valve of the present utility model is equipped with solenoid.
Fig. 5 is that this utility model pilot valve applies the schematic diagram in cross valve.
Wherein: 1 sleeve pipe, 2 filter screens, 3 valve seats, 4 multifunctional inner sleeves, 5 holes, location, 6 holes, 7 rear ends, 8 multifunctional inner sleeve front portions, 9 chambers, 10 capillary tubies, 11 slide blocks, 12 guiding support plates, 13 rivets, 14 springs and 15 guide shell fragment, 16 spools, 17 solenoids.
Detailed description of the invention
As shown in the figure, a kind of integral type pilot valve, including sleeve pipe 1, filter screen 2 and valve seat 3, multifunctional inner sleeve 4 it is additionally provided with in described pilot valve, the tube wall of described multifunctional inner sleeve 4 is provided with the hole, location 5 for positioning valve seat 3, bottom hole 5, described location shape and valve seat 3 suitable, can snap in bottom described valve seat 3 in hole 5, location, it is simple to valve seat 3 assembles location in sleeve pipe 1 die cavity.Described sleeve pipe 1 is provided with hole 6, and the area in the hole 6 of described sleeve pipe 1 tube wall is less than the area in hole, described location 5.As shown in Figures 4 and 5, being wherein pilot valve at A, main valve is connected by capillary tube with described pilot valve, and pilot valve is provided with solenoid 17.
The rear end 7 of described multifunctional inner sleeve 4 is plane, and in annular face contacts or multiple equilibrium formula contacts with spool 16 in the rear end 7 of described multifunctional inner sleeve 4, it is achieved balanced type is spacing.
Described multifunctional inner sleeve front end is confined planes, and the rear end of described multifunctional inner sleeve is positive stop end, front and back set a distance spacing thus the position in hole, spacing location.
Filter screen 3 top is pressed on sleeve pipe by described multifunctional inner sleeve 4 front end.Shape chamber 9 between described multifunctional inner sleeve 4 front portion and sleeve pipe 1, described chamber 9 is used for placing solder, filter screen, 2 sleeve pipes 1 and multifunctional inner sleeve 4 three is welding as one after described solder fusing.Multifunctional casing can be carried out by the part forming chamber, reducing, as shown in figure 3-1；Drawing, as shown in figure 3-2；Vehicle Processing, as shown in Fig. 3-3；Components welding, as shown in Figure 3-4 etc. structure realizes.
Filter screen 2 top is pressed on sleeve pipe 1 by described multifunctional inner sleeve 4 front end.
Described multifunctional inner sleeve 4 is low-carbon (LC) steel or stainless steel.
Described pilot valve also includes capillary tube 10, slide block 11, guides support plate 12, rivet 13, spring 14 and guide shell fragment 15.
The technical process of pilot valve is as follows: described multifunctional inner sleeve 4 can pass through reducing, Vehicle Processing, drawing, multiple part combination welding manner prepare.The barrel-like structure of sleeve pipe 1, can pass through sheet metal stretching, steel pipe spinning, multiple part combination welding manner prepare.Filter screen 2 is positioned over front portion in sleeve pipe 1, then multifunctional inner sleeve 4 is put into sleeve pipe, and sleeve pipe 1 filter screen is beared down on one on casing wall, the cavity simultaneously formed between multifunctional inner sleeve 4, sleeve pipe 1 and filter screen 2 is placed solder.The most again valve seat 3 is placed in sleeve pipe 1, wait until hole 5, location local time stop forward, apply the pressure to direction, hole 5, location, valve seat 3 be pressed into hole 5, location, simultaneously because location hole 5 size is more than hole 6, valve seat will not drop out outside.By remaining each parts of pilot valve assembling complete, finally enter stove is carried out integrally molded.In stove during welding, soldering sleeve, inner sleeve, filter screen, valve seat, capillary tube.
Claims (9)
1. an integral type pilot valve, including sleeve pipe, filter screen and valve seat, it is characterised in that be additionally provided with multifunctional inner sleeve in described sleeve pipe, the tube wall of described multifunctional inner sleeve is provided with the hole, location for positioning valve seat, and the rear end of described multifunctional inner sleeve is positive stop end and contacts with spool.
2. integral type pilot valve as claimed in claim 1 a kind of, it is characterised in that described positive stop end and the spool contacted with spool is anchor ring or multiple equilibrium formula contacts.
3. a kind of integral type pilot valve as claimed in claim 1, it is characterised in that described multifunctional inner sleeve front end is confined planes.
4. a kind of integral type pilot valve as claimed in claim 1, it is characterised in that described location hole shape is suitable with valve seat, and described valve seat can snap in hole, location.
5. a kind of integral type pilot valve as claimed in claim 1, it is characterised in that shape chamber between described multifunctional inner sleeve front portion and sleeve pipe, described chamber is used for placing solder, filter screen, sleeve pipe and multifunctional inner sleeve three is welding as one after described solder fusing.
6. a kind of integral type pilot valve as claimed in claim 1, it is characterised in that filter screen top is pressed on sleeve pipe by described multifunctional inner sleeve front end.
7. a kind of integral type pilot valve as claimed in claim 1 or 2, it is characterised in that described multifunctional inner sleeve rear end is plane.
8. a kind of integral type pilot valve as claimed in claim 1, it is characterised in that described multifunctional inner sleeve is low-carbon (LC) steel or stainless steel.
9. a kind of integral type pilot valve as claimed in claim 1, it is characterised in that main valve is connected by capillary tube with described pilot valve, and pilot valve is provided with solenoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620318289.6U CN205592474U (en) | 2016-04-15 | 2016-04-15 | Integral type pilot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620318289.6U CN205592474U (en) | 2016-04-15 | 2016-04-15 | Integral type pilot valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205592474U true CN205592474U (en) | 2016-09-21 |
Family
ID=56935003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620318289.6U Expired - Fee Related CN205592474U (en) | 2016-04-15 | 2016-04-15 | Integral type pilot valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205592474U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930816A (en) * | 2017-05-23 | 2018-12-04 | 浙江三花制冷集团有限公司 | A kind of reversal valve and preparation method thereof |
| CN110332360A (en) * | 2019-08-14 | 2019-10-15 | 珠海励高精工制造有限公司 | Pilot valve, its welding method, four-way reversing valve and air conditioner |
-
2016
- 2016-04-15 CN CN201620318289.6U patent/CN205592474U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930816A (en) * | 2017-05-23 | 2018-12-04 | 浙江三花制冷集团有限公司 | A kind of reversal valve and preparation method thereof |
| CN108930816B (en) * | 2017-05-23 | 2021-04-06 | 浙江三花制冷集团有限公司 | Reversing valve and manufacturing method thereof |
| CN110332360A (en) * | 2019-08-14 | 2019-10-15 | 珠海励高精工制造有限公司 | Pilot valve, its welding method, four-way reversing valve and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Integral type pilot valve Effective date of registration: 20200714 Granted publication date: 20160921 Pledgee: Taozhu sub branch of Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Pledgor: ZHUJI SPIDER METAL Co.,Ltd. Registration number: Y2020330000489 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210625 Granted publication date: 20160921 Pledgee: Taozhu sub branch of Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Pledgor: ZHUJI SPIDER METAL Co.,Ltd. Registration number: Y2020330000489 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An integrated pilot valve Effective date of registration: 20210628 Granted publication date: 20160921 Pledgee: Taozhu sub branch of Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Pledgor: ZHUJI SPIDER METAL Co.,Ltd. Registration number: Y2021330000682 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 |