CN203730848U - Low-pressure one-way valve - Google Patents
Low-pressure one-way valve Download PDFInfo
- Publication number
- CN203730848U CN203730848U CN201420070103.0U CN201420070103U CN203730848U CN 203730848 U CN203730848 U CN 203730848U CN 201420070103 U CN201420070103 U CN 201420070103U CN 203730848 U CN203730848 U CN 203730848U
- Authority
- CN
- China
- Prior art keywords
- liquid
- fluid
- entering hole
- way valve
- valve pocket
- 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
Links
- 239000012530 fluid Substances 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims description 100
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 241000251468 Actinopterygii Species 0.000 abstract description 4
- 239000003292 glue Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Abstract
The utility model provides a design scheme of a low-pressure one-way valve. The low-pressure one-way valve has the advantages that the low-pressure one-way valve is different from a traditional one-way valve which can be closed by needing high water pressure, but skillfully utilizes a fluid gate which is a soft rubber piece and utilizes a characteristic that the soft rubber piece deforms easily, a fluid inlet can be blocked under the low water pressure condition, and the one-way valve can be closed. A fluid led from the fluid inlet is led to a valve cavity by utilizing matching of the fluid inlet and a fluid guiding port and finally flows out of a fluid outlet. Therefore, the low-pressure one-way valve meets the using requirements in lower water pressure occasions including fish tanks and fishponds.
Description
Technical field:
The utility model relates to a kind of low pressure check valve, is mainly used in some low hydraulic pressure occasion, as fish jar fishpond etc.
Background technique:
Current liquid flow check valve on the market, namely unimodal current valve, its working principle is all made up of valve pocket and spool, spool is pressed onto and on valve pocket, just closes liquid stream, separate and just open liquid stream, spool can only be by unidirectional promotion, in these designs, there is a common ground, be exactly that spool adds flexible glue by hard thing and forms, when its sealing, be exactly the deformation by the flexible glue of surface of contact, and the power that this is closed completes by the differential water pressures on one-way valve both sides, and some use occasion is to accomplish very high differential water pressures, such as fish jar fishpond etc., the depth of water is exactly tens centimeters so, to produce enough pressure, what tend to like this to cause one-way valve can not tight closing.
Model utility content
In order to overcome the shortcoming that one-way valve can not tight closing in the situation that hydraulic pressure is not high, the utility model provides a kind of low pressure check valve.The hydraulic pressure of its need of work in the situation that of several centimeters of hydraulic pressure, low pressure check valve that just can tight closing, when opening, the water resistance of its generation is also very little simultaneously.
First in a valve pocket, put in a liquid inlet pipe, and be fixed in valve pocket, one end of liquid inlet pipe is connected to the outside of valve pocket, the other end is blocked by liquid gate, liquid gate be one can be concavo-convex up and down cushion compound, liquid gate is the substrate that has fluid guidance port and liquid entering hole below, and periphery and liquid gate are tightly fixing; When liquid enters valve pocket by liquid outlet direction, at this moment the power that liquid gate is subject at liquid entering hole two ends be valve pocket inside higher than outside, and the area of the corresponding liquid gate of fluid guidance port is due to all in valve pocket, so bearing up-down force is substantially equal, that is to say, liquid gate is subject to the power from inside outwards pushing away, therefore liquid gate is overlayed on liquid entering hole, liquid gate be one can be concavo-convex up and down cushion compound, its can be along liquid entering hole generation deformation, does not need so the very large power just can be liquid entering hole to having blocked closely.Liquid is thoroughly blocked, and now low pressure check valve is in closed condition; In addition when the liquid of valve pocket is subject to the pump drainage of liquid outlet or has a power that liquid is entered to valve pocket from liquid entering hole, at this moment liquid gate can leave liquid entering hole, liquid passes through liquid entering hole, follow the jacking due to liquid gate, liquid enters valve pocket from fluid guidance port, flow out finally by crossing liquid outlet, at this moment low pressure check valve is in open mode.
The area of liquid gate is larger than the area of liquid entering hole, and this is that the area of liquid gate is to be covered with liquid entering hole and fluid guidance port because must leave the position of fluid guidance port.
Have and between the substrate of fluid guidance port and liquid entering hole and valve pocket, must have certain gap can allow flow of fluid, after liquid entering hole enters valve pocket, will flow to liquid outlet because this is liquid by this gap.
The area of liquid gate is larger than liquid entering hole, because the liquid of coming in from liquid entering hole is to flow to valve pocket by the fluid guidance port on liquid entering hole side after encountering liquid gate.
Valve pocket is the excessive space of UNICOM's liquid entering hole and liquid outlet, that is to say that liquid is seal space by valve pocket as passage.
The beneficial effects of the utility model are, low pressure check valve is not that traditional one-way valve is such, need higher hydraulic pressure just can close liquid valve, but utilize dexterously this cushion compound of liquid gate, utilize the easier characteristic of deformation ratio of cushion compound, the in the situation that of low hydraulic pressure, just liquid entering hole can be blocked, unidirectional liquid valve cuts out; The cooperation of recycling liquid entering hole and fluid guidance port, guides valve pocket into the liquid of coming in from liquid entering hole, finally flows out by liquid outlet; So just meet the usage requirement of fish jar, fishpond these low hydraulic pressure occasions.。
Brief description of the drawings
Below in conjunction with accompanying drawing and case study on implementation, the utility model is further illustrated.
Fig. 1 is low pressure check valve closed condition.
Fig. 2 is low pressure check valve open mode.
Title in Fig. 1, Fig. 2: 1. valve pocket, 2. liquid, 3. liquid gate, 4. fluid guidance port, 5. liquid inlet pipe, 6. liquid entering hole, 7. liquid outlet
Embodiment:
In Fig. 1, liquid inlet pipe (5) is inserted and secured in valve pocket (1), one end of liquid inlet pipe (5) is received the outside of valve pocket (1), the other end is blocked by liquid gate (3), and liquid gate (3) is covered with fluid guidance port (4) and liquid entering hole (6).When liquid (2) enters after valve pocket (1) by liquid outlet (7) direction, at this moment the power that liquid gate (3) is subject at liquid entering hole (6) two ends be valve pocket (1) inner higher than outside, and the area bearing up-down force of the corresponding liquid gate of fluid guidance port (4) (3) is substantially equal, therefore liquid gate (3) is overlayed on liquid entering hole (6).Liquid (2) blocking-up that is blocked, now low pressure check valve is in closed condition.
Shown in Fig. 2, when the liquid (2) of valve pocket (1) is subject to the pump drainage of liquid outlet (7) or has a power that liquid (2) is pushed to valve pocket (1) along liquid entering hole (6), at this moment liquid gate (3) can leave liquid entering hole (6), liquid (2) can enter valve pocket (1) by fluid guidance port (4) again by liquid entering hole (6), finally flow out from liquid outlet (7), at this moment low pressure check valve is in open mode.
Claims (5)
1. low pressure check valve is to be fixed in valve pocket with a liquid inlet pipe, liquid inlet pipe one end and valve pocket outside UNICOM, liquid gate covers one end of liquid entering hole and fluid guidance port, between fluid guidance port and valve pocket, be to have the gap can be to flow of fluid, liquid outlet can be discharged valve pocket liquid, it is characterized in that: liquid gate is can upper and lower concavo-convex cushion compound.
2. low pressure check valve according to claim 1, is characterized in that: the area of liquid gate is larger than liquid entering hole, can cover liquid entering hole and fluid guidance port.
3. low pressure check valve according to claim 1, is characterized in that: have and between the substrate of fluid guidance port and liquid entering hole and valve pocket, have certain gap can allow flow of fluid.
4. low pressure check valve according to claim 1, is characterized in that: the liquid of coming in from liquid entering hole is to flow to valve pocket by fluid guidance port.
5. low pressure check valve according to claim 1, is characterized in that: valve pocket be UNICOM's liquid entering hole and liquid outlet excessively between space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070103.0U CN203730848U (en) | 2014-02-17 | 2014-02-17 | Low-pressure one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070103.0U CN203730848U (en) | 2014-02-17 | 2014-02-17 | Low-pressure one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730848U true CN203730848U (en) | 2014-07-23 |
Family
ID=51200923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420070103.0U Expired - Lifetime CN203730848U (en) | 2014-02-17 | 2014-02-17 | Low-pressure one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730848U (en) |
-
2014
- 2014-02-17 CN CN201420070103.0U patent/CN203730848U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20221220 Granted publication date: 20140723 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230711 Granted publication date: 20140723 |
|
| PD01 | Discharge of preservation of patent | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |
|
| CX01 | Expiry of patent term |