CN214534668U - Vacuum one-way valve - Google Patents
Vacuum one-way valve Download PDFInfo
- Publication number
- CN214534668U CN214534668U CN202120567051.8U CN202120567051U CN214534668U CN 214534668 U CN214534668 U CN 214534668U CN 202120567051 U CN202120567051 U CN 202120567051U CN 214534668 U CN214534668 U CN 214534668U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing ring
- valve core
- valve seat
- seat
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a vacuum one-way valve, which comprises a valve cover, a valve seat, a valve core plug, a first sealing ring and a second sealing ring; the valve cover is coated on the valve seat, a second sealing ring is arranged between the valve cover and the valve seat in an interference fit manner and is in sealing fit with the valve seat through the second sealing ring, the valve core plug is movably arranged in the valve seat, and a first sealing ring in interference fit is arranged below the valve seat; the top end of the valve core plug is provided with a valve core cap; the valve cover comprises an air outlet nozzle which is arranged on the valve cover and is positioned above the valve core cap of the valve core plug; the valve seat comprises an air suction nozzle which is arranged on the valve seat, and the air suction nozzle is positioned below the valve core cap of the valve core plug. The embodiment of the utility model provides a constitute vacuum check valve by case stopper, valve gap and disk seat, the case stopper slides and sets up in the disk seat, and the structure that case stopper replaced spring and case has avoided producing the deviation of position because of the spring deformation.
Description
Technical Field
The utility model relates to a check valve field, concretely relates to vacuum check valve.
Background
The traditional vacuum pump one-way valve is generally composed of a valve body, a one-way valve core and the like, wherein the one-way valve core is installed in the valve body, the valve core made of rubber materials is pressed at a vent hole through a spring, and when the air inlet pressure outside the valve core is larger than the spring force, the valve core can be opened to realize one-way ventilation. In the structure, because the mounting positions of the spring and the valve core are easy to deviate, and simultaneously, when the check valve works, the spring and the valve core are easy to deviate from the center in the action process, the sealing matching surface of the valve core and the vent hole is misplaced, and the spring is easy to generate fatigue deformation under the action of a long time, the guidance performance is poor, and the sealing surface is easy to deflect or the sealing force is insufficient, so that the vacuum air leakage is easy to generate.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, the utility model provides a vacuum check valve, valve core stopper, valve gap and disk seat constitute vacuum check valve, and the valve core stopper slides and sets up in the disk seat, and the structure that valve core stopper replaced spring and case has avoided producing the deviation of position because of the spring is out of shape.
In order to solve the technical problem, an embodiment of the present invention provides a vacuum check valve, which includes a valve cover, a valve seat, a valve core plug, a first sealing ring and a second sealing ring;
the valve cover is coated on the valve seat, the second sealing ring is arranged between the valve cover and the valve seat in an interference fit mode and is in sealing fit through the second sealing ring, the valve core plug is movably arranged in the valve seat, and the first sealing ring in interference fit is arranged below the valve seat;
the top end of the valve core plug is provided with a valve core cap;
the valve cover comprises an air outlet nozzle which is arranged on the valve cover and is positioned above the valve core cap of the valve core plug;
the valve seat comprises an air suction nozzle, the air suction nozzle is arranged on the valve seat, and the air suction nozzle is located below a valve core cap of the valve core plug.
The utility model discloses a preferred scheme, the valve core stopper first sealing washer with the material of second sealing washer is rubber.
The utility model discloses an optimal scheme, the valve gap still includes the double-screw bolt, the double-screw bolt sets up the outside both ends of valve gap, the vacuum check valve passes through double-screw bolt fixed mounting on the valve gap on the installation flat board.
In the preferred scheme of the utility model, the upper and lower gaps between the valve core plug and the valve seat are 0.2-3 mm;
the left and right clearance between the valve core plug and the valve seat is 0.2-3 mm.
In the preferred scheme of the utility model, the upper and lower gaps between the valve core plug and the valve seat are 1 mm;
the left and right clearance between the valve core plug and the valve seat is 0.5 mm.
The utility model discloses a preferred scheme, the interference fit volume of first sealing washer is 0.2-2 mm.
The utility model discloses an optimal scheme, the interference fit volume of first sealing washer is 0.6 mm.
The utility model discloses a preferred scheme, the interference fit volume of second sealing washer is 0.1-1 mm.
The utility model discloses an optimal scheme, the interference fit volume of second sealing washer is 0.3 mm.
The vacuum one-way valve provided by the utility model fixes the valve core plug on the valve seat to replace the spring connecting valve core, thus avoiding the vacuum air leakage of the vacuum one-way valve caused by the strain deformation of the spring; the vacuum one-way valve consists of a valve cover, a valve seat, a valve core plug, a first sealing ring and a second sealing ring, and is few in parts, simple in assembly structure, excellent in tightness performance, long in service life and good in economic benefit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic sectional view of a vacuum check valve according to an embodiment of the present invention.
Fig. 2 is a schematic view of a valve cover structure of a vacuum check valve according to an embodiment of the present invention.
The labels in the figure are: 1-a valve cover, 11-an air outlet nozzle, 12-a stud, 2-a valve seat, 21-an air suction nozzle, 3-a valve core plug, 31-a valve core cap, 41-a first sealing ring, 42-a second sealing ring, 5-an installation flat plate, an upper gap and a lower gap-A between the valve core plug and the valve seat, a left gap and a right gap-B between the valve core plug and the valve seat, an interference fit amount-C of the first sealing ring and an interference fit amount-D of the second sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Examples
See fig. 1 and 2.
The embodiment of the utility model provides a vacuum one-way valve, the vacuum one-way valve includes valve gap 1, valve seat 2, case stopper 3, first sealing washer 41 and second sealing washer 42;
the valve cover 1 is coated on the valve seat 2, the second sealing ring 42 is arranged between the valve cover 1 and the valve seat 2 in an interference fit manner and is in sealing fit through the second sealing ring 42, the valve core plug 3 is movably arranged in the valve seat 2, and the first sealing ring 41 in interference fit is arranged below the valve seat 2;
the top end of the valve core plug 3 is provided with a valve core cap 31;
the valve cover 1 comprises an air outlet 11, the air outlet 11 is arranged on the valve cover 1, and the air outlet 11 is positioned above the valve core cap 31 of the valve core plug 3;
the valve seat 2 comprises an air suction nozzle 21, the air suction nozzle 21 is arranged on the valve seat 2, and the air suction nozzle 21 is positioned below a valve core cap 31 of the valve core plug 3. When air is pumped from the end of the air outlet nozzle 11, the valve core plug 3 moves upwards, the channel is opened at the moment, and the air at the end of the air suction nozzle 21 is pumped out from the air outlet nozzle 11; when the air exhaust of the end of the air outlet nozzle 11 is stopped, the valve core plug 3 descends due to vacuum negative pressure, and the port of the valve seat 2 is sealed, so that the vacuum in the vacuum cavity is maintained.
The material of the valve element plug 3, the first seal ring 41, and the second seal ring 42 is rubber. The valve element plug 3, the first sealing ring 41 and the second sealing ring 42 are all made of soft materials, the soft materials have good flexibility, and the sealing rings are elastically deformed under compression of an object to plug gaps to achieve a sealing effect; the valve core plug 3 is made of rubber, and the rubber has good corrosion resistance.
It should be noted that the valve cover 1 further includes studs 12, the studs 12 are disposed at two ends of the outer side of the valve cover 1, and the vacuum check valve is fixedly mounted on the mounting flat plate 5 through the studs 12 on the valve cover 1.
The upper and lower gaps A between the valve core plug 3 and the valve seat 2 are 0.2 to 3 mm;
the left and right clearance B between the valve core plug 3 and the valve seat 2 is 0.2 to 3 mm.
Preferably, the upper and lower gaps A between the valve core plug 3 and the valve seat 2 are 1 mm;
the left and right clearance B between the valve core plug 3 and the valve seat 2 is 0.5 mm.
The interference fit amount C of the first seal ring 41 is 0.2 to 2 mm.
Preferably, the interference fit amount C of the first seal ring 41 is 0.6 mm.
The interference fit amount D of the second seal ring 42 is 0.1 to 1 mm.
Preferably, the interference fit amount D of the second seal ring 42 is 0.3 mm. The interference fit amount C is larger than the interference fit amount D, and preferably twice the interference fit amount C.
The vacuum one-way valve provided by the embodiment of the utility model adopts the valve cover 1 to cover the valve seat 2, and the joint of the valve cover 1 and the valve seat 2 is sealed by the sealing ring, so that a closed space can be provided; the valve core plug 3 is arranged in the valve seat 2, the valve core cap 31 is arranged at the top end of the valve core plug 3, the valve core cap 31, the valve cover 1 and the valve seat 2 form a vacuum cavity, the air outlet nozzle 11 exhausts air, the valve core plug moves upwards, the channel is opened at the moment, and the air at the end of the air inlet nozzle 21 is exhausted from the air outlet nozzle 11.
The embodiments of the present invention have been described in detail, and the principle and the implementation of the present invention are explained herein by using specific embodiments, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (9)
1. A vacuum one-way valve is characterized by comprising a valve cover, a valve seat, a valve core plug, a first sealing ring and a second sealing ring;
the valve cover is coated on the valve seat, the second sealing ring is arranged between the valve cover and the valve seat in an interference fit mode and is in sealing fit through the second sealing ring, the valve core plug is movably arranged in the valve seat, and the first sealing ring in interference fit is arranged below the valve seat;
the top end of the valve core plug is provided with a valve core cap;
the valve cover comprises an air outlet nozzle which is arranged on the valve cover and is positioned above the valve core cap of the valve core plug;
the valve seat comprises an air suction nozzle, the air suction nozzle is arranged on the valve seat, and the air suction nozzle is located below a valve core cap of the valve core plug.
2. The vacuum check valve of claim 1, wherein the material of the spool plug, the first seal ring, and the second seal ring is rubber.
3. The vacuum check valve as claimed in claim 1, wherein the valve cover further comprises studs disposed at both outer ends of the valve cover, and the vacuum check valve is fixedly mounted on the mounting plate through the studs on the valve cover.
4. The vacuum check valve according to claim 1, wherein the upper and lower clearances of the spool plug and the valve seat are 0.2mm to 3 mm;
the left and right clearance between the valve core plug and the valve seat is 0.2mm to 3 mm.
5. The vacuum check valve according to claim 1, wherein the upper and lower clearances of the spool plug and the valve seat are 1 mm;
the left and right clearance between the valve core plug and the valve seat is 0.5 mm.
6. The vacuum check valve of claim 1, wherein the first sealing ring has an interference fit of 0.2mm to 2 mm.
7. The vacuum check valve of claim 6, wherein the first sealing ring has an interference fit of 0.6 mm.
8. The vacuum check valve of claim 1, wherein the interference fit of the second sealing ring is 0.1mm to 1 mm.
9. The vacuum check valve of claim 8, wherein the interference fit of the second sealing ring is 0.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120567051.8U CN214534668U (en) | 2021-03-19 | 2021-03-19 | Vacuum one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120567051.8U CN214534668U (en) | 2021-03-19 | 2021-03-19 | Vacuum one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214534668U true CN214534668U (en) | 2021-10-29 |
Family
ID=78263722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120567051.8U Expired - Fee Related CN214534668U (en) | 2021-03-19 | 2021-03-19 | Vacuum one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214534668U (en) |
-
2021
- 2021-03-19 CN CN202120567051.8U patent/CN214534668U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220428 Address after: 312000 East head, floor 2, building 4, zhupu'ao, Kuaiji village, Pingshui Town, Keqiao District, Shaoxing City, Zhejiang Province Patentee after: Zhejiang yuancosmic Electric Appliance Co.,Ltd. Address before: Room 505-7, building 3, Zhonghao international business center, 672 Xintang Road, Jianggan District, Hangzhou City, Zhejiang Province, 310016 Patentee before: Zhejiang Qianyi Technology Co.,Ltd. |
|
| 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: 20211029 |