CN201100226Y - Unidirectional valve device for liquid pump - Google Patents
Unidirectional valve device for liquid pump Download PDFInfo
- Publication number
- CN201100226Y CN201100226Y CNU2007200285302U CN200720028530U CN201100226Y CN 201100226 Y CN201100226 Y CN 201100226Y CN U2007200285302 U CNU2007200285302 U CN U2007200285302U CN 200720028530 U CN200720028530 U CN 200720028530U CN 201100226 Y CN201100226 Y CN 201100226Y
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- CN
- China
- Prior art keywords
- water inlet
- valve
- way valve
- water
- spring
- 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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Abstract
The utility model provides a one-way valve device on a liquid pump, which belongs to a device on a liquid pump, wherein a water inlet lug boss is arranged on the face side of a valve seat, a water outlet groove is arranged in a water outlet lug boss on the inner side of the water inlet lug boss, a groove is arranged on the opposite side of the valve seat which is opposite to the water inlet lug boss, a water inlet one-way valve is mounted on the valve seat between the water inlet lug boss and the groove, a water outlet one-way valve is mounted on the valve seat in the water outlet groove, a valve body is arranged on the water inlet one-way valve, a spring mounting rack is arranged on the valve body, a spring is mounted in the spring mounting rack, a sealing sheet is arranged between the spring and the valve body, and a water inlet is arranged on the central portion of the valve body. The one-way valve device utilizes the spring, the sealing sheet and the other components to replace the existing plastic membrane, which simultaneously improves corrosion-resisting property when the functions of the existing plastic membranes are played, thereby improving the service span of the one-way valves, and guaranteeing normal operation. The one-way valve has the advantages of reasonable structure, reliable work and strong pressure resistance capability.
Description
Technical field
The utility model provides the device on a kind of liquid pump, especially a kind of check valve apparatus.
Background technique
Install on the check valve apparatus of the diaphragm pump on liquid pump such as the sprayer play unidirectional by the effect be plastic diaphragms, this barrier film poor corrosion resistance, after the stronger agricultural chemicals of corrosivity cannot not contact longly a period of time, barrier film can or rot because of corrosion-deformation, cause the discharge pressure of pump to reduce or not water outlet, working life is low, needs often maintenance, influences normal operation.At present, there are many manufacturers seeking solution, but all are itself to study,, this problem never is resolved because of not finding suitable material at the plastic diaphragms material.
Summary of the invention
Technical problem to be solved in the utility model is to provide the check valve apparatus on a kind of liquid pump, to improve the working life of one-way valve.
The utility model is to realize like this, check valve apparatus on the liquid pump, it has valve seat, there is into water boss in the valve seat front, in the water outlet boss of water inlet boss inboard the water outlet groove is arranged, the position corresponding to the water inlet boss at the valve seat back side is fluted, into water one-way valve is installed on the valve seat between described water inlet boss and the groove, on the valve seat in described water outlet groove water one-way valve is installed out, on the water inlet one-way valve, valve body is arranged, the spring scaffold is arranged on the valve body, in the spring scaffold spring is installed, the shutoff sheet is arranged between spring and the valve body, and there is the water inlet at the valve body middle part, advances, the water outlet one-way valve structures is identical, on the water inlet one-way valve, the water inlet is positioned at the valve seat front, is going out on the water one-way valve, and the water inlet is positioned at the valve seat reverse side.
Adopt the check valve apparatus of said structure, utilize parts such as spring, shutoff sheet to replace existing plastic diaphragms, when playing existing plastic diaphragms effect, improved decay resistance, thereby improved the working life of one-way valve, guaranteed normally carrying out of operation.This check valve apparatus is rational in infrastructure, reliable operation, and voltage endurance capability is strong.Except that can be used for sprayer, also can be used on the mordant liquid pump of other working medium.
Description of drawings
Fig. 1 is the plan view of the utility model structure.
Fig. 2 is the rear view of Fig. 1.
Fig. 3 is the schematic representation of the water inlet one-way valve structures in the utility model.
Embodiment
Below in conjunction with description of drawings concrete structure of the present utility model.
As shown in drawings, check valve apparatus on the liquid pump of the utility model, it has valve seat 2, there is into water boss 4 in the valve seat front, in the water outlet boss 7 of water inlet boss inboard water outlet groove 1 is arranged, the position fluted 8 corresponding to the water inlet boss at the valve seat back side, into water one-way valve 5 is installed on the valve seat between described water inlet boss 4 and the groove 8, on the valve seat in described water outlet groove 1 water one-way valve 6 is installed out, on the water inlet one-way valve, valve body 5-5 is arranged, spring scaffold 5-2 is arranged on the valve body, spring 5-3 is installed in the spring scaffold, shutoff sheet 5-4 is arranged between spring and the valve body, and there is water inlet 5-1 at the valve body middle part, advances, the water outlet one-way valve structures is identical, on the water inlet one-way valve, the water inlet is positioned at the valve seat front, is going out on the water one-way valve, and water inlet 6-1 is positioned at the valve seat reverse side.
Described shutoff sheet 5-4, spring 5-3 are made by stainless steel.Can further improve corrosion resistance like this.
Described water inlet boss, groove 8 have a plurality of of even layout on valve seat, be generally 3, and the water inlet one-way valve also has corresponding 3.In the water outlet groove, also can be equipped with 3 and go out water one-way valve.
The installation form of this check valve apparatus, working principle are identical with existing check valve apparatus.During use, this check valve apparatus is installed in the position of the existing check valve apparatus of installation on the diaphragm pump on liquid pump such as the sprayer.During work, liquid enters pump chamber from the gap of elastic force between the spring scaffold that the water inlet 5-1 on the water inlet one-way valve overcomes spring, is flowed out from going out water one-way valve by the liquid after the pump pressurization.And when hydraulic pressure when lower or flow reversal is flowed, under the effect of spring, the shutoff sheet is got back to initial position, and the water inlet is blocked, and water can not oppositely be flowed out, thereby plays the unidirectional effect that ends.
This check valve apparatus changes existing plastic diaphragms into present water-in and water-out one-way valve, and the profile of this check valve apparatus and existing check valve apparatus are basic identical, can directly replace existing check valve apparatus, needn't transform the liquid pump structure.
For further improving its durability, the water inlet position on valve body 5-5 can have metallic sheath 5-6.The same with existing check valve apparatus, on water outlet boss 7, seal ring 3 can be arranged.
Fig. 1 has represented the structure in front of the check valve apparatus of the utility model, and Fig. 2 has represented the structure at its back side.
Claims (2)
1, check valve apparatus on the liquid pump, it has valve seat (2), there is into water boss (4) in the valve seat front, in the water outlet boss (7) of water inlet boss inboard water outlet groove (1) is arranged, the position fluted (8) corresponding to the water inlet boss at the valve seat back side, it is characterized in that, into water one-way valve (5) is installed on the valve seat between described water inlet boss (4) and the groove (8), water one-way valve (6) is installed out on the valve seat in described water outlet groove (1), on the water inlet one-way valve, valve body (5-5) is arranged, spring scaffold (5-2) is arranged on the valve body, spring (5-3) is installed in the spring scaffold, shutoff sheet (5-4) is arranged between spring and the valve body, and there is water inlet (5-1) at the valve body middle part, advances, the water outlet one-way valve structures is identical, on the water inlet one-way valve, the water inlet is positioned at the valve seat front, is going out on the water one-way valve, and water inlet (6-1) is positioned at the valve seat reverse side.
2, the check valve apparatus on the liquid pump as claimed in claim 1 is characterized in that, described shutoff sheet (5-4), spring (5-3) are made by stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200285302U CN201100226Y (en) | 2007-09-26 | 2007-09-26 | Unidirectional valve device for liquid pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200285302U CN201100226Y (en) | 2007-09-26 | 2007-09-26 | Unidirectional valve device for liquid pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201100226Y true CN201100226Y (en) | 2008-08-13 |
Family
ID=39936760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200285302U Expired - Fee Related CN201100226Y (en) | 2007-09-26 | 2007-09-26 | Unidirectional valve device for liquid pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201100226Y (en) |
-
2007
- 2007-09-26 CN CNU2007200285302U patent/CN201100226Y/en not_active Expired - Fee Related
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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: 20080813 Termination date: 20100926 |