CN207584094U - A kind of check valve - Google Patents
A kind of check valve Download PDFInfo
- Publication number
- CN207584094U CN207584094U CN201721736641.9U CN201721736641U CN207584094U CN 207584094 U CN207584094 U CN 207584094U CN 201721736641 U CN201721736641 U CN 201721736641U CN 207584094 U CN207584094 U CN 207584094U
- Authority
- CN
- China
- Prior art keywords
- connecting tube
- valve body
- ring
- check valve
- valve
- 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
Abstract
The utility model discloses a kind of check valves, eliminate the welding of traditional the first valve body of check valve and connecting tube, the welded structure of the welding of second valve body and connecting tube, the first valve component and the second valve component carries out the structure of riveting using valve body with the connecting tube equipped with O-ring.The risk that the part of check valve is overheated and damaged when avoiding welding, improves the reliability of product, while reduce parts（Second valve body）, reduce cost.
Description
Technical field
The utility model is related to air conditioning for automobiles control fields, and in particular to a kind of check valve.
Background technology
In the automobile-used air-conditioning system of electric vehicle, check valve has become indispensable component part.Check valve is installed
Compressor reverse rotation or prevent refrigerant from being flowed to not from the compressor of operating in the exhaust ports of compressor, during for preventing from shutting down
The compressor of operating.One-way valve structures in electric automobile air-conditioning system are various, and different properties represent advanced technology at present
Structure type, as shown in Figure 1.
Check valve is by the first connecting tube 1 ', the first valve body 2 ', piston component 3 ', spring 4 ', guidance set 5 ', the second valve body
6 ' and second connecting tube 7 ' form.First connecting tube 1 ' and the welding of the first valve body 2 ', the second valve body 6 ' and the weldering of the second connecting tube 7 '
It connects.First valve body 2 ' is interior equipped with piston component 3 ', spring 4 ' and guidance set 5 ', and the baffle 51 ' in guidance set 5 ' abuts against
With the first valve body 2 ' and the second valve body 6 ', then the first valve body 2 ' and the second valve body 6 ' are welded, form sealing.
By practical proof, said program still has following defect：1st, the 2 ' interior loading piston group of the first valve body of check valve
It is welded again with the second valve body 6 ' after part 3 ', spring 4 ' and guidance set 5 ', it is very high to welding process requirement and unidirectional during welding
Part in valve is easily overheated and is damaged, and product quality is difficult to ensure that.2nd, the welding times of check valve are more, the first connecting tube 1 ' and
First valve body 2 ' welds, and the second valve body 6 ' and the second connecting tube 7 ' are welded, then again to the first valve component and the second valve body into
Row welding, welding sequence is more, and welding cost is high.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of reliable in quality, welding sequence is few, list at low cost
To valve.
The technical solution of the utility model provides a kind of check valve, including the first connecting tube 1, the first O-ring 2, spool group
Part 3, valve body 4, spring 5, baffle plate assembly 6, the second O-ring 7, the second connecting tube 8 form.
Core assembly 3, spring 5, baffle plate assembly 6 and the second company equipped with the second O-ring 7 are packed into first valve body 4
Take over 8, sealing ring 302 and the boss 402 of valve body 4 in core assembly 3 abut against, and 5 one end of spring abuts and core assembly 3
Big bottom surface, and be sleeved in the outside cylinder of 301 boss of spool of core assembly 3,5 other end of spring abuts and baffle plate assembly 6, and covers
In 601 outside cylinder of guide post of baffle plate assembly 6.After being reloaded into the second connecting tube 8 equipped with the second O-ring 7, riveting valve body 4
Boss portion 481 is fixed and is sealed.The second valve body is not only eliminated, and also eliminates the welding between valve body, valve body 4 and
The welding of two connecting tubes 8.The risk that part when avoiding welding in check valve is overheated and damaged, improves the reliable of product
Property, while reduce parts（Second valve body）, reduce cost.
The connecting tube 1 equipped with the first O-ring 2 is packed into another section of groove 413 of first valve body 4, riveting valve body 4
Boss portion 411 is fixed and is sealed.Technique when reducing welding, reduces cost.
One end of second connecting tube 8 is machined with a upsetting platform 801, then extruding necking is carried out to pier and is processed into a groove
802, groove 802 is interior to be packed into the second O-ring 7, and O-ring 7, the second connecting tube 8 and the first valve body 4 form sealing structure.
The plane 104 of second connecting tube 8 abuts the baffle 602 of baffle plate assembly 6, plays fixed function.
Description of the drawings
Fig. 1：A kind of structure diagram for representing advanced technology in the prior art.
Fig. 2：The front view of the one-way valve structures of a kind of specific implementation that the utility model provides.
Fig. 3：The diagrammatic cross-section of first valve body of check valve.
Fig. 4：The diagrammatic cross-section of the connecting tube two of check valve.
Fig. 5：The diagrammatic cross-section of the connecting tube one of check valve.
Fig. 6：Schematic diagram is flowed to after check valve opening.
Fig. 7：Another structure of check valve.
Specific embodiment
In order to which those skilled in the art is made to be better understood from the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.
Fig. 2 is the front view of the one-way valve structures of a kind of specific implementation that the utility model provides.It is as shown in Fig. 2, unidirectional
Valve includes the first connecting tube 1, the first O-ring 2, core assembly 3, valve body 4, spring 5, baffle plate assembly 6, the second O-ring 7, second
Connecting tube 8 forms.
As shown in figure 3, core assembly 3, spring 5, baffle plate assembly 6 and equipped with the second O-ring 7 are packed into the valve body 4
Second connecting tube 8, sealing ring 302 and the boss 402 of valve body 4 in core assembly 3 abut against, and 5 one end of spring abuts and spool
The big bottom surface of component 3, and be sleeved in the outside cylinder of 301 boss of spool of core assembly 3,5 other end of spring abuts and baffle group
Part 6, and be sleeved in 601 outside cylinder of guide post of baffle plate assembly 6.After being reloaded into the second connecting tube 8 equipped with the second O-ring 7, riveting
The boss portion 481 of valve body 4 is fixed and is sealed.
As shown in figure 3, the connecting tube 1 equipped with the first O-ring 2 is packed into another section of groove 413 of first valve body 4,
The boss portion 411 of riveting valve body 4 is fixed and is sealed.Technique when reducing welding, reduces cost.
As shown in figure 4, one end of second connecting tube 8 is machined with a upsetting platform 801, then extruding necking is carried out to pier and is added
Work is into a groove 802, and groove 802 is interior to be packed into the second O-ring 7, and O-ring 7, the second connecting tube 8 and the first valve body 4 form sealing knot
Structure.The interior diameter of second connecting tube 8 is L1, and the interior diameter of groove 802 is L3, and the overall diameter of upsetting platform 801 is L4, the second connecting tube
The interior diameter L3 of 8 groove 802 is more than or equal to the interior diameter L1 of the second connecting tube 8.The plane 104 of second connecting tube 8 abuts gear
The baffle 602 of plate component 6, plays fixed function.
As shown in fig. 6, fluid media (medium) enters from check valve left end, due to the effect of pressure, fluid media (medium) is core assembly 3
Sealing ring 302 it is open-top, compressed spring 5, fluid media (medium) flows to the valve chamber 402 of valve body 4 from the through-hole 101 of connecting tube 1, passes through gear
The baffle circulation passage 603 of plate component 6 enters the through-hole 801 of connecting tube 8.
Claims (4)
1. a kind of check valve, including the first connecting tube 1, the first O-ring 2, core assembly 3, valve body 4, spring 5, baffle plate assembly 6,
Second O-ring 7, the second connecting tube 8 form, and core assembly 3, spring 5, baffle plate assembly 6 and O-shaped equipped with second are packed into valve body 4
Second connecting tube 8 of circle 7, the sealing ring 302 in core assembly 3 are abutted against with the boss 402 of valve body 4,5 one end of spring abut and
The big bottom surface of core assembly 3, and be sleeved in the outside cylinder of 301 boss of spool of core assembly 3,5 other end of spring abuts and gear
Plate component 6, and be sleeved in 601 outside cylinder of guide post of baffle plate assembly 6, after being reloaded into the second connecting tube 8 equipped with the second O-ring 7,
The boss portion 481 of riveting valve body 4 is fixed and is sealed.
2. check valve as described in claim 1, which is characterized in that one end of second connecting tube 8 is machined with a upsetting platform
801, then extruding necking is carried out to pier and is processed into a groove 802, the second O-ring 7 is packed into groove 802, O-ring 7, second connects
8 and first valve body 4 of take over forms sealing structure, and the interior diameter of the second connecting tube 8 is L1, and the interior diameter of groove 802 is L3, upsetting platform
801 overall diameter is L4, and the interior diameter L3 of the groove 802 of the second connecting tube 8 is more than or equal to the interior diameter L1 of the second connecting tube 8.
3. check valve as described in claim 1, which is characterized in that the plane 104 of second connecting tube 8 abuts baffle plate assembly
6 baffle 602, plays fixed function.
4. check valve as described in claim 1, which is characterized in that after 481 riveting of boss of the valve body 4 with the second connecting tube
The edge of 8 upsetting platform 801 abuts against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721736641.9U CN207584094U (en) | 2017-12-14 | 2017-12-14 | A kind of check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721736641.9U CN207584094U (en) | 2017-12-14 | 2017-12-14 | A kind of check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207584094U true CN207584094U (en) | 2018-07-06 |
Family
ID=62737356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721736641.9U Expired - Fee Related CN207584094U (en) | 2017-12-14 | 2017-12-14 | A kind of check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207584094U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084057A (en) * | 2018-10-12 | 2018-12-25 | 浙江易达汽车零部件有限公司 | A kind of nut check valve |
| CN109958797A (en) * | 2017-12-14 | 2019-07-02 | 浙江易达汽车零部件有限公司 | A kind of check valve |
-
2017
- 2017-12-14 CN CN201721736641.9U patent/CN207584094U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958797A (en) * | 2017-12-14 | 2019-07-02 | 浙江易达汽车零部件有限公司 | A kind of check valve |
| CN109084057A (en) * | 2018-10-12 | 2018-12-25 | 浙江易达汽车零部件有限公司 | A kind of nut check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180706 Termination date: 20201214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |