CN208503592U - A kind of check valve - Google Patents
A kind of check valve Download PDFInfo
- Publication number
- CN208503592U CN208503592U CN201820697789.4U CN201820697789U CN208503592U CN 208503592 U CN208503592 U CN 208503592U CN 201820697789 U CN201820697789 U CN 201820697789U CN 208503592 U CN208503592 U CN 208503592U
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- CN
- China
- Prior art keywords
- connecting tube
- pressing plate
- check valve
- left pressing
- fixed
- 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
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- Check Valves (AREA)
Abstract
The utility model discloses a kind of check valves, one end of the left connecting tube of check valve and the right connecting tube of check valve, which is respectively welded, is fixed on left connector and right connector, the left connecting tube other end of check valve installs the outer end be fixed on left pressing plate and be pierced by left pressing plate, the left connecting tube of check valve for being pierced by left pressing plate part forms at least two first annular protrusions cooperated with left pressing plate outer end, the groove for assembling sealing ring is formed between first annular protrusion, is fitted close by the sealing ring and air-conditioning system of groove；The other end of the right connecting tube of check valve, which installs, is fixed on right pressing plate；The both ends of the connecting tube support be threaded on left pressing plate and right pressing plate respectively, one end of connecting tube is pierced by the outer end of left pressing plate, the connecting tube for being pierced by left pressing plate part forms at least two second annular protrusions cooperated with left pressing plate outer end, the groove for assembling sealing ring is formed between second annular protrusion, is fitted close by the sealing ring and air-conditioning system of groove.
Description
Technical field
The utility model belongs to air conditioning for automobiles field of components, especially related with a kind of check valve.
Background technique
In the automobile-used air-conditioning system of electric car, check valve has become indispensable component part.Check valve installation
In the exhaust ports of compressor, compressor reverse rotation when for preventing from shutting down, or prevent refrigerant from flowing to not from the compressor of operating
The compressor of operating.As shown in Figure 1, existing check valve assembly is by unidirectional valve body 1 ', the left connecting tube 2 ' of check valve, check valve
Right connecting tube 3 ', left pressing plate 4 ', right pressing plate 5 ' and connecting tube 6 ' form, and one end of left connecting tube 2 ' and unidirectional valve body 1 ' weld
It connects, the other end and left pressing plate 4 ' weld, and one end of right connecting tube 3 ' and unidirectional valve body 1 ' weld, and the other end and right pressing plate 5 ' are welded
It connects, one end of connecting tube 6 ' and left pressing plate 4 ' weld, and the other end and right pressing plate 5 ' of connecting tube 6 ' weld, the left end of left pressing plate 4 '
Equipped with O-ring slot 41 ', the right end of right pressing plate 5 ' is equipped with groove 51 '.However pass through practical proof, above scheme still has following
Defect: 1, the pad of check valve assembly is more, and the left end of unidirectional valve body 1 ' and left connecting tube 2 ' are welded, unidirectional valve body 1 '
Right end and right connecting tube 3 ' are welded, the welding of unidirectional valve body 1 ', and left connecting tube 2 ' is welded with left pressing plate 4 ', right connecting tube 3 ' with
Right pressing plate 5 ' is welded, and connecting tube 6 ' and left pressing plate 4 ' weld, and connecting tube 6 ' and right pressing plate 5 ' are welded, therefore non-to welding process requirement
Chang Gao, welding efficiency is low, and welding cost is high, and part when welding in check valve is easy overheat and damages, and product quality is difficult to
Guarantee.2, the processing of O-ring slot 41 ' in the left pressing plate 4 ' of check valve is relatively difficult, and processing cost is high.3, the right pressing plate of check valve
The processing of groove 51 ' in 5 ' is relatively difficult, and processing cost is high.
Utility model content
For the problems of check valve in above-mentioned background technique, the utility model is intended to provide one kind, and the processing is simple,
Processing cost is low, and pad is few, reliable in quality, check valve at low cost.
For this purpose, the utility model uses following technical scheme: a kind of check valve, including the left company of unidirectional valve body, check valve
Adapter tube, the right connecting tube of check valve, left pressing plate, right pressing plate and connecting tube, characterized in that the left side and the right side of the unidirectional valve body
Side is respectively formed the left connector and right connector of the left connecting tube of connection check valve, the right connecting tube of check valve, the left connection of check valve
One end of pipe and the right connecting tube of check valve, which is respectively welded, is fixed on left connector and right connector, the left connecting tube other end of check valve
The outer end be fixed on left pressing plate and be pierced by left pressing plate is installed, the left connecting tube of check valve for being pierced by left pressing plate part is formed and left pressure
Plate outer end cooperation at least two first annular protrusions, it is first annular protrusion between form the groove for assembling sealing ring,
It is fitted close by the sealing ring and air-conditioning system of groove；The other end of the right connecting tube of check valve, which installs, is fixed on right pressing plate；Institute
The both ends for the connecting tube stated support be threaded on left pressing plate and right pressing plate respectively, and one end of connecting tube is pierced by the outer end of left pressing plate
Portion, the connecting tube for being pierced by left pressing plate part form at least two second annular protrusions cooperated with left pressing plate outer end, the second ring
The groove for assembling sealing ring is formed between shape protrusion, is fitted close by the sealing ring and air-conditioning system of groove.
As supplement to above-mentioned technical proposal and perfect, the utility model further includes following technical characteristic.
The through-hole that support installs the right pressing plate of the right connecting tube of the check valve and connecting tube is inner small and outside big counterbore, described
The end of the right connecting tube of check valve and connecting tube is equipped with expansion mouth, the right connecting tube of check valve penetrate after counterbore with the check valve
Ontology is fixed, and connecting tube is fixed after penetrating counterbore with the left pressing plate.
The left connecting tube of the check valve, the right connecting tube of check valve and connecting tube are fixed on a left side by tube or riveting processing
On pressing plate and/or right pressing plate.
The left pressing plate and right pressing plate is integral type or is made of two individual pressing plates.
The left pressing plate and right pressing plate is metal material or plastic material production molding.
It is arranged there are two the groove that the right pressing plate between the counterbore is equipped with indent, be greater than by the depth of groove etc.
In the diameter for the through-hole for supporting the left connecting tube of the check valve and connecting tube, convenient for the installation of screw in system, and material is reduced
Cost.
The utility model can achieve following the utility model has the advantages that the check valve assembly pad of 1, the utility model is few, part
The processing is simple, at low cost, reliable in quality.2, the utility model eliminates left connecting tube and left pressing plate, connecting tube and left pressing plate, the right side
The welding of connecting tube and right pressing plate, connecting tube and right pressing plate reduces welding cost, and avoids and generate because of failure welding
It is bad, keep quality relatively reliable.3, the utility model eliminates corresponding left pressing plate and connecting tube is used to assemble the sealing of O-ring
The structure of slot so that left pressing plate and connecting tube be made to be easily worked, and reduces processing cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing check valve.
Fig. 2 is the schematic perspective view of the utility model.
Fig. 3 is the schematic diagram of internal structure of the utility model.
Specific embodiment
Specific embodiment of the present utility model is described in detail with reference to the accompanying drawing.
As shown in Figures 2 and 3, the utility model includes unidirectional valve body 1, the left connecting tube 2 of check valve, the right connection of check valve
Pipe 3, left pressing plate 4, right pressing plate 5 and connecting tube 6, the left and right side of unidirectional valve body 1 are respectively formed the connection left connection of check valve
The left connector and right connector of the right connecting tube 3 of pipe 2, check valve, the one of the left connecting tube 2 of check valve and the right connecting tube 3 of check valve
End, which is respectively welded, is fixed on left connector and right connector, and the other end of the left connecting tube 2 of check valve, which installs, is fixed on left pressing plate 4 simultaneously
It is pierced by the outer end of left pressing plate 4, is pierced by and is formed in the left connecting tube of check valve of left pressing plate part and the cooperation of left pressing plate outer end
At least two first annular raised 7, the groove for assembling sealing ring is formed between first annular raised 7, passes through the close of groove
The cooperation of the pressing plate close installation of seal and air-conditioning system, the other end of the right connecting tube 3 of check valve, which installs, is fixed on right pressing plate 5；Even
The both ends of adapter tube 6 support be threaded on left pressing plate 4 and right pressing plate 5 respectively, right 3 and of connecting tube of the left connecting tube 2 of check valve, check valve
Connecting tube 6 is fixed on left pressing plate and right pressing plate by tube processing, and left pressing plate 4 and right pressing plate 5 are metal material integral type system
It forms.One end of connecting tube 6 is pierced by the outer end of left pressing plate 4, is pierced by outside the connecting tube formation and left pressing plate of left pressing plate part
At least two second annular protrusions 8 of end cooperation, form the groove for assembling sealing ring between the second annular protrusion 8, logical
The pressing plate close installation of the sealing ring and air-conditioning system of crossing groove cooperates.In addition, there are two in the right pressing plate between counterbore for setting
Groove equipped with indent is more than or equal to the straight of the through-hole for supporting the left connecting tube of the check valve and connecting tube by the depth of groove
Diameter convenient for the installation of screw in system, and reduces material cost.
Further, it is interior small outer that support, which installs the through-hole of the right pressing plate 5 of the right connecting tube 3 of the check valve and connecting tube 6,
The end of big counterbore, the right connecting tube 3 of the check valve and connecting tube 6 is equipped with expansion mouth, and the right connecting tube 3 of check valve penetrates counterbore
Fixed with unidirectional valve body 1 afterwards, connecting tube 6 is fixed after penetrating counterbore with left pressing plate 4.
Further, left pressing plate 4 and right pressing plate 5 are two individual pressing plate compositions, and two pressing plates assemble unidirectionally respectively
The left connecting tube 2 of valve and connecting tube 6 or the right connecting tube 3 of assembly check valve and connecting tube 6.
Claims (6)
1. a kind of check valve, including unidirectional valve body (1), the left connecting tube of check valve (2), the right connecting tube of check valve (3), left pressing plate
(4), right pressing plate (5) and connecting tube (6), it is characterised in that: the left and right side of the unidirectional valve body (1) is respectively formed company
Connect the left connector and right connector of the left connecting tube of check valve (2), the right connecting tube of check valve (3), the left connecting tube of check valve (2) and
One end of the right connecting tube of check valve (3), which is respectively welded, is fixed on left connector and right connector, the left connecting tube of check valve (2) it is another
One end installs the outer end be fixed on left pressing plate (4) and be pierced by left pressing plate (4), is pierced by the left connecting tube of check valve of left pressing plate part
At least two first annular raised (7) of upper formation and the cooperation of left pressing plate outer end, form between first annular raised (7) and are used for
The groove of sealing ring is assembled, the other end of the right connecting tube of check valve (3), which installs, is fixed on right pressing plate (5)；The connecting tube (6)
Both ends support be threaded on left pressing plate (4) and right pressing plate (5) respectively, one end of connecting tube (6) is pierced by the outer end of left pressing plate (4)
Portion, the connecting tube for being pierced by left pressing plate part is formed and at least two second annular protrusions (8) of left pressing plate outer end cooperation, and second
The groove for assembling sealing ring is formed between annular protrusion (8).
2. a kind of check valve according to claim 1, it is characterised in that: support installs the right connecting tube of the check valve (3)
Through-hole with the right pressing plate (5) of connecting tube (6) is inner small and outside big counterbore, the right connecting tube of check valve (3) and connecting tube (6)
End be equipped with expansion mouth, the right connecting tube of check valve (3) penetrates fixed with the unidirectional valve body (1) after counterbore, connecting tube
(6) it is fixed after penetrating counterbore with the left pressing plate (4).
3. a kind of check valve according to claim 2, it is characterised in that: the left connecting tube of the check valve (2), check valve
Right connecting tube (3) and connecting tube (6) are fixed in left pressing plate and/or right pressing plate by tube or riveting processing.
4. a kind of check valve according to claim 3, it is characterised in that: the left pressing plate (4) and right pressing plate (5) is one
Body formula is made of two individual pressing plates.
5. a kind of check valve according to claim 4, it is characterised in that: the left pressing plate (4) and right pressing plate (5) is gold
Belong to material or plastic material production molding.
6. a kind of check valve according to claim 5, it is characterised in that: there are two the right pressures between the counterbore for setting
Plate is equipped with the groove of indent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820697789.4U CN208503592U (en) | 2018-05-11 | 2018-05-11 | A kind of check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820697789.4U CN208503592U (en) | 2018-05-11 | 2018-05-11 | A kind of check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208503592U true CN208503592U (en) | 2019-02-15 |
Family
ID=65298461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820697789.4U Expired - Fee Related CN208503592U (en) | 2018-05-11 | 2018-05-11 | A kind of check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208503592U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413094A (en) * | 2018-05-11 | 2018-08-17 | 浙江易达汽车零部件有限公司 | A kind of check valve |
-
2018
- 2018-05-11 CN CN201820697789.4U patent/CN208503592U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413094A (en) * | 2018-05-11 | 2018-08-17 | 浙江易达汽车零部件有限公司 | A kind of 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: 20190215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |