CN202203456U - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN202203456U CN202203456U CN2011203180830U CN201120318083U CN202203456U CN 202203456 U CN202203456 U CN 202203456U CN 2011203180830 U CN2011203180830 U CN 2011203180830U CN 201120318083 U CN201120318083 U CN 201120318083U CN 202203456 U CN202203456 U CN 202203456U
- Authority
- CN
- China
- Prior art keywords
- valve
- safety check
- valve rod
- valve seat
- check according
- 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 - Lifetime
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- Check Valves (AREA)
Abstract
A check valve comprises a valve seat, a fixing bracket, a valve rod and a spring, wherein a valve core is arranged at one end of the valve rod and is mounted in the valve seat; the other end of the valve rod is connected with the fixing bracket; the spring is mounted on the latter end of the valve rod; a concave platform is arranged at the circumference of the valve core, and is propped against the inner end surface of the valve seat. As the concave platform is arranged on the valve core of the check valve, the sealing effect of the valve seat and the valve core can be achieved under the condition that no seal ring is used, which ensures that the check valve can be mounted fast and conveniently, and the production efficiency of the check valve is improved.
Description
Technical field
The utility model relates to a kind of safety check, relates in particular to safety check in a kind of fluid line that is applied to water heater, solar energy, burnt gas wall hanging furnace, multipotency source combination heating system and ground heating system etc.
Background technique
Safety check is widely used in the fluid line, is used to stop the medium refluence and prevents that pump or motor counter-rotating etc. from causing security incidents.The valve seat of existing safety check is provided with flange; Realize seal action through the seal ring that is complementary with this flanged structure in valve seat and the spool; And there is complex structure in this safety check, and inconsistent phenomenon appears in seal ring and valve rod easily in this safety check process of assembling, thereby makes troubles to assembling; For overcoming these defectives, safety check is improved.
Summary of the invention
The utility model technical problem to be solved is that a kind of safety check will be provided, it simple in structure, and can assemble to speed and convenience, improve safety check manufacturing efficiency.
The technological scheme that its technical problem that solves the utility model adopts is: it comprises valve seat, fixing frame, valve rod, spring; One end of described valve rod is provided with spool; Described spool is loaded in the valve seat, and the other end links to each other with fixing frame, and the described valve rod the other end is provided with spring; The periphery of described spool is provided with a concave station, and the interior edge face of described concave station and valve seat joins.
The interior edge face of described valve seat is provided with and the corresponding boss of concave station.
The outer side wall of described fixing frame is provided with and is used for fixing at ducted several buckles.
The quantity of described buckle is more than 2.
The quantity of described buckle is 2 or 3 or 4 or 5 or 6.
Also be provided with plurality of strengthening ribs on the described valve rod.
The quantity of described stiffening rib is more than 2.
The quantity of described stiffening rib is 2 or 3 or 4 or 5 or 6.
The utility model is compared the beneficial effect that is produced with existing technology: be provided with the concave station structure because the utility model is employed in the spool of safety check; Thereby can be issued to the sealing effect of valve seat and spool in the situation of not using seal ring; Help speed and convenience ground safety check is assembled, improve safety check manufacturing efficiency.
Further, through on valve seat, being provided with and the corresponding boss of spool, thereby have characteristics easy to process, that practice thrift cost.
Further, owing on fixing frame, adopt buckle structure, safety check in pipeline, has been avoided the processing of screw thread through snap fit, can reduce cost, conveniently install.
Further, owing on valve rod, be provided with reinforcing rib structure, can guarantee that valve rod moves all the time in the valve opening of the cooperation of fixing frame, fluid produces oscillatory occurences when having avoided valve rod to open effectively on the stem movement direction.
Description of drawings: Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is the sectional view of the utility model.
Fig. 3 is the structural representation of valve seat 1 among Fig. 1.
Embodiment: referring to accompanying drawing 1,2, shown in 3, the utility model comprises valve seat 1, fixing frame 2, valve rod 3, spring 4.Valve seat 1 is through being fastened on fixing frame 2, and valve rod 3 is installed between valve seat 1 and the fixing frame 2, is provided with spring 4 between valve rod 3 and the fixing frame 2.One end of spool 1 is provided with valve opening 7, and an end of valve rod 3 is provided with spool 31, and spool 31 is provided with concave station 6; For fear of the off-set phenomenon of spool in assembly process; Can on the interior edge face of valve seat 1, be provided with and concave station 6 corresponding boss 5, concave station 6 joins with boss 5, and the protruding part of spool 31 is installed in the valve opening 11; The other end of valve rod 3 is provided with several stiffening ribs 10; The quantity of stiffening rib 10 is more than 2, and a plurality of stiffening ribs 10 are evenly distributed on the outer wall of valve rod 3, generally selects 2 or 3 or 4 or 5 or 6 stiffening ribs 10 for use for easy to process; Be 4 in the present embodiment, an end that is provided with the valve rod 3 of stiffening rib 10 is inserted in the valve opening of fixing frame 2; The outer wall of valve seat 1 is provided with the groove that is used to install seal ring 8; The outer wall of fixing frame 2 is provided with several buckles 9; The quantity of buckle 9 is more than 2; A plurality of buckles 9 are evenly distributed on the circumference of the outer wall of fixing frame 2, generally select 2 or 3 or 4 or 5 or 6 buckles 9 for use for easy to process, in the present embodiment are 4.
The another kind of embodiment of the utility model and the difference of said structure are not to be provided with on the valve seat 1 boss 5.
The utility model is fixedly mounted in the pipeline through buckle 9, avoids fixing through screw thread.The working procedure of the utility model: when fluid flow through, under the flowing pressure effect of fluid, the concave station 6 on the valve rod 3 separated with boss 5 on the valve seat 1, and valve rod 3 is backed down to the motion of fluid flow direction, and spring 4 is compressed, fluid flow.When valve closing or when not having fluid, valve rod 3 rapidly to the initial position motion, fits step 6 and boss 5 under the pressure effect that the spring-back force and the reflux fluid of spring 4 flows, and stops the refluence of fluid.
Because the valve rod 3 of the utility model is provided with stiffening rib 10; Thereby make valve rod 3 in the hole that fixing frame 2 cooperates, move all the time, stroke is fixed, and fluid produces concussion when having avoided valve rod to open on the stem movement direction; Hydrodynamic pressure and stability of flow; The noise that flows is little, has guaranteed that effectively other thermal water source of domestic water system provides the normal use of mechanism, and the non-return valve core life-span is guaranteed.
Claims (10)
1. safety check; It comprises valve seat (1), fixing frame (2), valve rod (3), spring (4), and an end of described valve rod (3) is provided with spool (31), and described spool (31) is loaded in the valve seat (1); The other end links to each other with fixing frame (2); Described valve rod (3) the other end is provided with spring (4), it is characterized in that the periphery of described spool (31) is provided with a concave station (6), and described concave station (6) joins with the interior edge face of valve seat (1).
2. safety check according to claim 1 is characterized in that the interior edge face of described valve seat (1) is provided with and the corresponding boss of concave station (6) (5).
3. safety check according to claim 1 and 2, the outer side wall that it is characterized in that described fixing frame (2) is provided with and is used for fixing at ducted several buckles (9).
4. safety check according to claim 3, the quantity that it is characterized in that described buckle (9) is more than 2.
5. safety check according to claim 4, the quantity that it is characterized in that described buckle (9) are 2 or 3 or 4 or 5 or 6.
6. safety check according to claim 1 and 2 is characterized in that also being provided with on the described valve rod (3) plurality of strengthening ribs (10).
7. safety check according to claim 3 is characterized in that also being provided with on the described valve rod (3) plurality of strengthening ribs (10).
8. safety check according to claim 6, the quantity that it is characterized in that described stiffening rib (10) is more than 2.
9. safety check according to claim 7, the quantity that it is characterized in that described stiffening rib (10) is more than 2.
10. safety check according to claim 9, the quantity that it is characterized in that described stiffening rib (10) are 2 or 3 or 4 or 5 or 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203180830U CN202203456U (en) | 2011-08-29 | 2011-08-29 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203180830U CN202203456U (en) | 2011-08-29 | 2011-08-29 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202203456U true CN202203456U (en) | 2012-04-25 |
Family
ID=45967577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203180830U Expired - Lifetime CN202203456U (en) | 2011-08-29 | 2011-08-29 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202203456U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661410A (en) * | 2012-05-23 | 2012-09-12 | 刘玉杰 | Automatic water stopper with external flow and internal pressure sliding valve core |
| CN105442260A (en) * | 2014-06-11 | 2016-03-30 | 无锡小天鹅股份有限公司 | Washing machine abluent box outlet valve |
-
2011
- 2011-08-29 CN CN2011203180830U patent/CN202203456U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661410A (en) * | 2012-05-23 | 2012-09-12 | 刘玉杰 | Automatic water stopper with external flow and internal pressure sliding valve core |
| CN105442260A (en) * | 2014-06-11 | 2016-03-30 | 无锡小天鹅股份有限公司 | Washing machine abluent box outlet valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120425 |