CN201306480Y - A check valve - Google Patents
A check valve Download PDFInfo
- Publication number
- CN201306480Y CN201306480Y CNU2008202113589U CN200820211358U CN201306480Y CN 201306480 Y CN201306480 Y CN 201306480Y CN U2008202113589 U CNU2008202113589 U CN U2008202113589U CN 200820211358 U CN200820211358 U CN 200820211358U CN 201306480 Y CN201306480 Y CN 201306480Y
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- valve body
- check valve
- hanging scroll
- 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 check valve which solves the problems of poor sealing effect and low production efficiency found in check valve in prior art. The check valve comprises a valve body (1), a valve flap (2) positioned in the valve body (1) and used for closing the valve and realizing check valve effect, and a valve cap (7) fixed on the upper end of the valve body (1); the valve flap (2) is movably connected with one end of a rocker (4); the other end of the rocker (4) is movably connected with a valve flap hanging shaft (5); the check valve is characterized in that two support blocks (8) are arranged in the valve body (1); a hanging shaft groove (6) used for supporting the hanging shaft is respectively arranged on the two support blocks (8); the lower bottom surface of the valve cap (7) is fixedly connected with a positioning column (9) used for extruding the support blocks (8) to seal the hanging shaft grooves (6). The check valve has good sealing effect and high production efficiency.
Description
Technical field
The utility model relates to a kind of safety check.
Background technique
Safety check is widely used in the every field of productive life.The structure of existing safety check is that it comprises valve body, is positioned at valve body and is used for throttle down and reaches the flap of non-return and be fixed on the valve gap of valve body upper end, flap is movably connected in an end of rocking arm; the other end of rocking arm and flap hanging scroll flexibly connect; have through hole on valve body; the flap hanging scroll is positioned at through hole, the two ends of flap hanging scroll are fixed with nut.Its shortcoming is: the coaxality of the through hole on the valve body is difficult to guarantee, and then influences the sealing of flap to valve body; While said structure processed complex, it is consuming time to take a lot of work, and manufacturing efficiency is low.
The model utility content
The utility model solves above-mentioned check valve seal exactly to be difficult to guarantee the problem that manufacturing efficiency is low.
The technical solution adopted in the utility model is: a kind of safety check, it comprises valve body, be positioned at valve body is used for throttle down and reaches the flap of non-return and be fixed on the valve gap of valve body upper end, flap is movably connected in an end of rocking arm; the other end of rocking arm and flap hanging scroll flexibly connect; be provided with two support blocks in the described valve body; establish on two support blocks and be respectively equipped with the hanging scroll groove that is used for supporting hanging scroll, described valve gap bottom surface is connected with and is used for pushing the locating column of support block to the hanging scroll slot seal.
Adopt technique scheme, during production, the flap hanging scroll can directly be positioned in the hanging scroll groove, fix valve gap, because there is affixed locating column the valve gap below, locating column directly is squeezed on the support block, the flap hanging scroll can only be rotated in the hanging scroll groove, thereby guarantee the check function of valve,, can guarantee the flap sealing effect because flap hanging scroll freedom of movement in the hanging scroll groove is big; Because installation is easy to process, therefore improved manufacturing efficiency greatly.
In sum, the beneficial effects of the utility model are: the good sealing effect of safety check, manufacturing efficiency improves greatly.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure, 1, valve body, 2, flap, 3, pivot pin, 4, rocking arm, 5, the flap hanging scroll, 6, the hanging scroll groove, 7, valve gap, 8, support block, 9, locating column.
Embodiment
A kind of safety check of the utility model, as shown in Figure 1, it comprises valve body 1, be positioned at valve body 1 is used for throttle down and reaches the flap 2 of non-return and be fixed on the valve gap 7 of valve body 1 upper end, flap 2 is movably connected in an end of Rocker arm 4 by bearing pin 3; the other end of Rocker arm 4 and flap hanging scroll 5 flexibly connect; affixed two support blocks 8 of valve body 1 inwall; establish on two support blocks 8 and be respectively equipped with the hanging scroll groove 6 that is used for supporting hanging scroll 5, described valve gap 7 bottom surfaces are connected with and are used for pushing the locating column 9 that 8 pairs of hanging scroll grooves 6 of support block seal.
Claims (1)
1, a kind of safety check, it comprises valve body [1], be positioned at valve body [1] is used for throttle down and reaches the flap [2] of non-return and be fixed on the valve gap [7] of valve body [1] upper end, flap [2] is movably connected in an end of rocking arm [4]; the other end of rocking arm [4] and flap hanging scroll [5] flexibly connect; it is characterized in that being provided with in the described valve body [1] two support blocks [8]; establish on two support blocks [8] and be respectively equipped with the hanging scroll groove [6] that is used for supporting hanging scroll, described valve gap [7] bottom surface is connected with and is used for pushing the locating column [9] that support block [8] seals hanging scroll groove [6].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202113589U CN201306480Y (en) | 2008-12-17 | 2008-12-17 | A check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202113589U CN201306480Y (en) | 2008-12-17 | 2008-12-17 | A check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306480Y true CN201306480Y (en) | 2009-09-09 |
Family
ID=41098945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202113589U Expired - Fee Related CN201306480Y (en) | 2008-12-17 | 2008-12-17 | A check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306480Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563159A (en) * | 2010-12-30 | 2012-07-11 | 北大方正集团有限公司 | Flow control device, coke-oven dust removing system and control method for flow of flowable substance |
-
2008
- 2008-12-17 CN CNU2008202113589U patent/CN201306480Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563159A (en) * | 2010-12-30 | 2012-07-11 | 北大方正集团有限公司 | Flow control device, coke-oven dust removing system and control method for flow of flowable substance |
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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: 20090909 Termination date: 20121217 |