CN203162243U - Non-return valve - Google Patents
Non-return valve Download PDFInfo
- Publication number
- CN203162243U CN203162243U CN 201320162529 CN201320162529U CN203162243U CN 203162243 U CN203162243 U CN 203162243U CN 201320162529 CN201320162529 CN 201320162529 CN 201320162529 U CN201320162529 U CN 201320162529U CN 203162243 U CN203162243 U CN 203162243U
- Authority
- CN
- China
- Prior art keywords
- valve
- ring
- spring
- valve body
- baffle ring
- 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
The utility model provides a non-return valve, which comprises a valve body, a valve core, a spring, an O-shaped ring, a waterstop ring, a baffle ring and a valve cap, wherein the valve body comprises a water inlet end and a water outlet end; a groove is formed in the outer wall of the valve body and a ring-shaped chamfer is arranged on the outer wall of the valve body; the O-shaped ring is arranged at the groove; a ring-shaped bulge is arranged on the inner wall of the valve body; the valve cap which is integrated with the valve core is arranged on one side, at the water outlet end, of the valve core; the baffle ring is clamped on one side, at the water inlet end, of the valve core; the valve core is sleeved with the spring; one end of the spring is supported to the baffle ring, and the other end is propped against the ring-shaped bulge; a bell mouth is formed in the inner wall of the water outlet end; and the valve core is sleeved with the waterstop ring; the waterstop ring is tightly pasted on the valve cap, is supported to the bell mouth, and is matched with the bell mouth in a seal manner. The water inlet end is affected by the pressure of fluid flowing in one direction, and the spring is pushed by the baffle ring, so that the valve is opened, and the fluid flows smoothly; and when the fluid performs reversed flow, the valve cap is supported by the fluid pressure, so that the flow is cut off, and the one-way flow of liquid medium is controlled.
Description
Technical field
The utility model relates to a kind of valve, especially a kind of check valve.
Background technique
Water pipe in the market leads directly to, and liquid medium can two-way flow.Now a lot of manufacturing mechanisms all have certain requirement, and they need control the flow direction of liquid medium, generally only allow liquid medium to flow to next step technology from previous step technology, and reverse flow can not have.In case liquid medium reverse flow, product just will be scrapped processing.On the living conditions, also have the phenomenon that needs the control liquid medium to flow to, such as drainage pipeline, we need effectively prevent the device of backing up of sewage.
The model utility content
The purpose of this utility model is to improve the problem of control liquid medium flow direction in the background technique.
In order to overcome the above problems, the utility model provides a kind of check valve, comprise valve body, spool, spring, O type circle, water-stop ring, baffle ring and valve gap, described valve body comprises feed-water end and waterexit end, described valve outer wall is provided with groove and annular chamfer, described O type circle is located at groove, described valve interior wall is provided with annular protrusion, described spool is positioned at waterexit end one side and is provided with valve gap with its one, described spool is positioned at feed-water end one side card a baffle ring, described valve core housing is provided with a spring, and described spring one end is butted on baffle ring mutually, and the other end is butted on annular protrusion mutually, described waterexit end inwall is provided with horn mouth, described water-stop ring is sleeved on the spool and is close to valve gap, and described water-stop ring is butted on horn mouth mutually and can be sealed and matched, and described baffle ring has a breach.
The utility model provides a kind of check valve, comprise valve body, spool, spring, O type circle, water-stop ring, baffle ring and valve gap, described valve body comprises feed-water end and waterexit end, described valve outer wall is provided with groove and annular chamfer, described O type circle is located at groove, described valve interior wall is provided with annular protrusion, described spool is positioned at waterexit end one side and is provided with valve gap with its one, described spool is positioned at feed-water end one side card a baffle ring, described valve core housing is provided with a spring, described spring one end is butted on baffle ring mutually, the other end is butted on annular protrusion mutually, described waterexit end inwall is provided with horn mouth, and described water-stop ring is sleeved on the spool and is close to valve gap, and described water-stop ring is butted on horn mouth mutually and can be sealed and matched.During check valve work, only allow medium to flow to a direction, and stop mobile in the other direction.Feed-water end is under the fluid pressure action that a direction flows, and baffle ring promotes spring, and valve gap is opened, and fluid flows through smoothly; When fluid flows, prop up valve gap by hydrodynamic pressure in the other direction, flow thereby cut off, realized control liquid medium one-way flow.
Description of drawings
Accompanying drawing 1 is check valve schematic representation described in the utility model.
1, valve body; 2, spool; 3, spring; 4, O type circle; 5, water-stop ring; 6, baffle ring; 7, valve gap; 11, feed-water end; 12, waterexit end.
Embodiment
Below in conjunction with accompanying drawing the utility model check valve is described further.
As shown in Figure 1, the check valve of present embodiment, comprise valve body 1, spool 2, spring 3, O type circle 4, water-stop ring 5, baffle ring 6 and valve gap 7, valve body 1 comprises feed-water end 11 and waterexit end 12, valve body 1 outer wall is provided with groove and annular chamfer, O type circle 4 is located at groove, valve body 1 inwall is provided with annular protrusion, spool 2 is positioned at waterexit end 12 1 sides and is provided with valve gap 7 with its one, spool 2 is positioned at feed-water end 11 1 side cards a baffle ring 6, spool 2 is arranged with a spring 3, and spring 3 one ends are butted on baffle ring 6 mutually, and the other end is butted on annular protrusion mutually, waterexit end 12 inwalls are provided with horn mouth, water-stop ring 5 is sleeved on the spool 2 and is close to valve gap 7, and water-stop ring 5 is butted on horn mouth mutually and can be sealed and matched, and baffle ring 6 has a breach.During check valve work, only allow medium to flow to a direction, and stop mobile in the other direction.Feed-water end is under the fluid pressure action that a direction flows, and baffle ring 6 promotes spring 3, and valve gap 7 is opened, and fluid flows through smoothly; When fluid flows, prop up valve gap 7 by hydrodynamic pressure in the other direction, flow thereby cut off, realized control liquid medium one-way flow.
Claims (2)
1. check valve, comprise valve body (1), spool (2), spring (3), O type circle (4), water-stop ring (5), baffle ring (6) and valve gap (7), it is characterized in that: described valve body (1) comprises feed-water end (11) and waterexit end (12), described valve body (1) outer wall is provided with groove and annular chamfer, described O type circle (4) is located at groove, described valve body (1) inwall is provided with annular protrusion, described spool (2) is positioned at waterexit end (12) one sides and is provided with valve gap (7) with its one, described spool (2) is positioned at feed-water end (11) one side cards a baffle ring (6), described spool (2) is arranged with a spring (3), described spring (3) one ends are butted on baffle ring (6) mutually, the other end is butted on annular protrusion mutually, described waterexit end (12) inwall is provided with horn mouth, described water-stop ring (5) is sleeved on spool (2) upward and is close to valve gap (7), and described water-stop ring (5) is butted on horn mouth mutually and can be sealed and matched.
2. check valve according to claim 1, it is characterized in that: described baffle ring (6) has a breach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320162529 CN203162243U (en) | 2013-04-03 | 2013-04-03 | Non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320162529 CN203162243U (en) | 2013-04-03 | 2013-04-03 | Non-return valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203162243U true CN203162243U (en) | 2013-08-28 |
Family
ID=49023427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320162529 Expired - Lifetime CN203162243U (en) | 2013-04-03 | 2013-04-03 | Non-return valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203162243U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498953A (en) * | 2013-10-12 | 2014-01-08 | 上海新跃仪表厂 | Zero leakage inserting installation one-way valve |
-
2013
- 2013-04-03 CN CN 201320162529 patent/CN203162243U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498953A (en) * | 2013-10-12 | 2014-01-08 | 上海新跃仪表厂 | Zero leakage inserting installation one-way valve |
| CN103498953B (en) * | 2013-10-12 | 2016-04-06 | 上海新跃仪表厂 | Zero leakage plug-in one-way 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: 20130828 |