CN202719218U - Flow-limiting check valve - Google Patents
Flow-limiting check valve Download PDFInfo
- Publication number
- CN202719218U CN202719218U CN 201220279116 CN201220279116U CN202719218U CN 202719218 U CN202719218 U CN 202719218U CN 201220279116 CN201220279116 CN 201220279116 CN 201220279116 U CN201220279116 U CN 201220279116U CN 202719218 U CN202719218 U CN 202719218U
- Authority
- CN
- China
- Prior art keywords
- valve
- guide rod
- spring
- flow
- conical
- 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
Images
Landscapes
- Check Valves (AREA)
- Safety Valves (AREA)
Abstract
The utility model discloses a flow-limiting check valve, which comprises a valve body and a conical valve clack body. The valve clack body is adapted to a conical water inlet of the valve body; a guide rod is connected to the end of the valve clack body; a convex ring is formed on the guide rod; a spring is sleeved on the guide rod outside the convex ring; a block is fixedly arranged at the water outlet of the valve body; one end of the spring is arranged on the side wall of the convex ring in an abutting mode; and the other end of the spring is arranged on the block in an abutting mode. As a blocking slot matched with the step of a valve rod is arranged in the valve body, the openness displacement of a valve plug is guaranteed. The flow-limiting check valve is reasonably designed in structure, is convenient to manufacture, and has the function of limiting maximum flow, and the sealing effect is improved.
Description
Technical field
The utility model relates to the valve class, specifically belongs to a kind of current-limiting type safety check.
Background technique
At present, the check valve structure form is of all kinds, and the form of open-close type non-return valve is arranged, external cushion dashpot form is also arranged, but the buffering when all just needing a kind of liquid to finish valve closing is eliminated destructive water hammer, to ensure the property safe and reliable to operation of water supply line facility.But often because leakage or the obstruction of hydraulic pipe line lose due function.General safety check does not have the function of limited flow rate.
The model utility content
The purpose of this utility model provides a kind of current-limiting type safety check, has solved the unmanageable phenomenon of uninterrupted, and reasonable in design is easy to make, has the function that limits peak rate of flow, and sealing effect improves.
The technical solution of the utility model is as follows:
A kind of current-limiting type safety check, include valve body, conical valve petal body, valve petal body matches with the conical water intake of valve body, the valve petal body end is connected with guide rod, guide rod is provided with flange collar, is set with spring on the guide rod in the flange collar outside, and the water outlet of valve body is fixed with block, spring one end overhead is on the sidewall of flange collar, and the other end overhead is on block.
Has cavity in the described conical valve petal body.
Valve petal body of the present utility model matches with the conical water intake of valve body, spring elastic force define the size in the water inlet space of valve petal body, solved the unmanageable phenomenon of uninterrupted and guaranteed that spool opens the opening degree displacement, reasonable in design, easy to make, have the function that limits peak rate of flow, sealing effect improves.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Referring to accompanying drawing, a kind of current-limiting type safety check, include valve body 1, conical valve petal body 2, valve petal body 2 matches with the conical water intake 3 of valve body 1, and the valve petal body end is connected with guide rod 4, guide rod 4 is provided with flange collar 5, be set with spring 6 on the guide rod in flange collar 5 outsides, the water outlet of valve body is fixed with block 7, and spring 6 one end overheads are on the sidewall of flange collar, the other end overhead has cavity 8 in the conical valve petal body on block 7.
Claims (2)
1. current-limiting type safety check, include valve body, conical valve petal body, it is characterized in that: valve petal body matches with the conical water intake of valve body, the valve petal body end is connected with guide rod, guide rod is provided with flange collar, is set with spring on the guide rod in the flange collar outside, and the water outlet of valve body is fixed with block, spring one end overhead is on the sidewall of flange collar, and the other end overhead is on block.
2. a kind of current-limiting type safety check according to claim 1 is characterized in that: have cavity in the described conical valve petal body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220279116 CN202719218U (en) | 2012-06-01 | 2012-06-01 | Flow-limiting check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220279116 CN202719218U (en) | 2012-06-01 | 2012-06-01 | Flow-limiting check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202719218U true CN202719218U (en) | 2013-02-06 |
Family
ID=47621042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220279116 Expired - Fee Related CN202719218U (en) | 2012-06-01 | 2012-06-01 | Flow-limiting check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202719218U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307433A (en) * | 2013-06-28 | 2013-09-18 | 贵州航天精工制造有限公司 | Thread screwing-in type cross groove lubrication joint assembly |
| CN108374918A (en) * | 2018-02-01 | 2018-08-07 | 华北水利水电大学 | A kind of flow-limiting valve |
-
2012
- 2012-06-01 CN CN 201220279116 patent/CN202719218U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307433A (en) * | 2013-06-28 | 2013-09-18 | 贵州航天精工制造有限公司 | Thread screwing-in type cross groove lubrication joint assembly |
| CN108374918A (en) * | 2018-02-01 | 2018-08-07 | 华北水利水电大学 | A kind of flow-limiting valve |
| CN108374918B (en) * | 2018-02-01 | 2020-03-17 | 华北水利水电大学 | Flow limiting valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MX2015010988A (en) | Backwater valve assembly and method. | |
| WO2015040499A3 (en) | Relief valve with directable outlet | |
| CN202719218U (en) | Flow-limiting check valve | |
| CN203453558U (en) | Axial flow type check valve | |
| CN203240030U (en) | Pilot-operated type safety relief valve | |
| MX2013007779A (en) | Check valve for a pipe section. | |
| IN2014DE00483A (en) | ||
| MX2015010489A (en) | High capacity control valve. | |
| CN202719217U (en) | Valve clack of check valve | |
| CN202812382U (en) | Ball valve seat with buffering function | |
| CN201827461U (en) | Check valve | |
| CN201827462U (en) | Check valve with sealing structure | |
| CN204610972U (en) | With the straight valve of cutoff function | |
| CN204253484U (en) | A kind of novel mass flow Bidirectional balanced valve | |
| CN202580147U (en) | Slow-closure type hydraulic check valve | |
| CN203258122U (en) | Non-return stop valve | |
| CN204372239U (en) | A kind of safety check | |
| CN203516251U (en) | Double-direction balance valve device | |
| CN203868447U (en) | Throttling valve | |
| CN204004640U (en) | The constant pressure valve with Security | |
| CN203421486U (en) | Compressed-air storage tank | |
| CN203240022U (en) | Check valve | |
| CN202118309U (en) | One-way valve capable of preventing autorotation of water meter | |
| CN209890242U (en) | Electric water pumping device with normally closed water outlet | |
| MY173556A (en) | Check valve of fuel filler pipe |
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: 20130206 Termination date: 20130601 |