CN201145065Y - Air discharge check valve - Google Patents
Air discharge check valve Download PDFInfo
- Publication number
- CN201145065Y CN201145065Y CNU2007200086455U CN200720008645U CN201145065Y CN 201145065 Y CN201145065 Y CN 201145065Y CN U2007200086455 U CNU2007200086455 U CN U2007200086455U CN 200720008645 U CN200720008645 U CN 200720008645U CN 201145065 Y CN201145065 Y CN 201145065Y
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- CN
- China
- Prior art keywords
- valve
- flange
- check valve
- assembly
- valve body
- 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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Abstract
The utility model discloses an exhausting check valve mainly comprising a valve body, a valve plate and a filter screen. The external wall of the valve body is provided with a collar flange for assembly, and the flange is provided with more than one assembly through hole. The valve plate is movably connected with a front end body of the flange, the filter screen is fixedly sleeved in a back end body of the flange, and the back end body of the flange is also covered by a dust cap. The exhausting check valve solves the problem of back draft in a split type check valve of the prior art, thereby remarkably improving the exhausting capability of the check valve. The assembly through holes are filled by cement to realize a firmer and securer assembly. A cap body covers the back end part of the valve body, thereby solving the problem of unsmooth exhaust due to dust falling into the valve body during the process of decoration, and ensuring the normal use of the exhausting check valve.
Description
Technical field
The utility model relates to a kind of safety check, refers to the venting check valve that matches with exhaust duct especially.
Background technique
Venting check valve of the prior art designs for split, can referring to Chinese patent literature on December 18th, 2002 disclosed ZL02225167.7 be used for preventing between Kitchen hygiene that oil flue waste gas from returning the safety check of scurrying, it comprises the connecting base and the valve body that is contained on the connecting base that can be connected and fixed on the ventilation channel outlet, the connecting base on valve body chassis has one can stretch into body cavity and cooperate the boss inflator that extends vertically be inserted in, is encapsulated in valve sheet between valve body and the connecting base boss inflator and is installed in versatilely in the groove on the boss inflator port string of a musical instrument.When mounted, connecting base is screwed on body of wall.Because this safety check designs for split, the joint of connecting base and valve body uneven produces return air in exhaust process, reduced venting capacity.
The model utility content
At the deficiencies in the prior art part, the utility model provides a kind of venting check valve of one design, and this safety check venting capacity is splendid and install extremely firm.
For achieving the above object, technical solutions of the utility model are:
Venting check valve mainly is made up of valve body, valve sheet, filter screen, and described valve body is integrally formed, its outer wall has an installation collar flange, offer more than one installation through hole on this flange, valve sheet is movably connected in the flange front end body, and filtration net cover is located in the flange rear end element;
Described flange rear end element lid is established a dust cover;
Described installation through hole is the taper hole towards valve rear end portion bundle mouth.
The usefulness of technique scheme is:
The utility model venting check valve adopts integrally formed valve body, has solved the return air problem of dividing the body structure safety check to bring in the prior art, has significantly improved the venting capacity of safety check.Adopt cement to fill and present the installation through hole, flange is embedded in the body of wall, install more firm; Establish a lid in valve rear end portion lid, solved in the fitment process dust and dropped into valve body, and made the not smooth problem of safety check exhaust, guarantee the normal use of the utility model venting check valve.
Description of drawings
Fig. 1 is the utility model structural upright decomposing schematic representation;
Fig. 2 is the utility model mounting hole cross-sectional schematic.
Embodiment
The utility model now is described in conjunction with the accompanying drawings and embodiments.
Venting check valve as shown in Figure 1 mainly is made up of a valve body 1, valve sheet 2, filter screen 3, and described valve body 1 outer wall has one to be installed with collar flange 11, offers more than one installation through hole 111 on this flange 11.Installation through hole 111 as shown in Figure 2 is the taper hole towards valve rear end portion bundle mouth.Valve sheet 2 is movably connected in the flange 11 front end bodies 12, and filter screen 3 adapter sleeves are located in flange 11 rear end elements 13; Also cover in flange 11 rear end elements 13 and to establish a dust cover 4.
The utility model venting check valve adopts the valve body 1 of above-mentioned integrative-structure, has solved the return air problem of dividing the body structure safety check to bring in the prior art, has significantly improved the venting capacity of safety check.During installation, cement is filled and presented in through hole 111 is installed, flange 11 is embedded in the body of wall, make installation more firm, firm; Establish a lid 4 in valve body 1 rearward end lid, solved in the fitment process and dropped into the not smooth problem of valve body 1 exhaust, guarantee the normal use of the utility model venting check valve because of dust.
Claims (3)
1, venting check valve, it is characterized in that: mainly form by valve body, valve sheet, filter screen, described valve body is integrally formed, its outer wall has an installation collar flange, offer more than one installation through hole on this flange, valve sheet is movably connected in the flange front end body, and filtration net cover is located in the flange rear end element.
2, venting check valve as claimed in claim 1 is characterized in that: flange rear end element lid is established a dust cover.
3, venting check valve as claimed in claim 1 or 2 is characterized in that: described installation through hole is the taper hole towards valve rear end portion bundle mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200086455U CN201145065Y (en) | 2007-10-29 | 2007-10-29 | Air discharge check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200086455U CN201145065Y (en) | 2007-10-29 | 2007-10-29 | Air discharge check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201145065Y true CN201145065Y (en) | 2008-11-05 |
Family
ID=40081942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200086455U Expired - Fee Related CN201145065Y (en) | 2007-10-29 | 2007-10-29 | Air discharge check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201145065Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197095A (en) * | 2014-09-05 | 2014-12-10 | 陈巧琴 | Valve with filter screens |
| CN104190148A (en) * | 2014-09-05 | 2014-12-10 | 陈巧琴 | Valve with air inlet filter screen |
| CN104960516A (en) * | 2015-06-29 | 2015-10-07 | 四川制动科技股份有限公司 | Spiral air exhaust structure for railway brake valve |
-
2007
- 2007-10-29 CN CNU2007200086455U patent/CN201145065Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197095A (en) * | 2014-09-05 | 2014-12-10 | 陈巧琴 | Valve with filter screens |
| CN104190148A (en) * | 2014-09-05 | 2014-12-10 | 陈巧琴 | Valve with air inlet filter screen |
| CN104960516A (en) * | 2015-06-29 | 2015-10-07 | 四川制动科技股份有限公司 | Spiral air exhaust structure for railway brake valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 Termination date: 20101029 |