CN2626620Y - Unloading valve of sprayer - Google Patents
Unloading valve of sprayer Download PDFInfo
- Publication number
- CN2626620Y CN2626620Y CN 03259232 CN03259232U CN2626620Y CN 2626620 Y CN2626620 Y CN 2626620Y CN 03259232 CN03259232 CN 03259232 CN 03259232 U CN03259232 U CN 03259232U CN 2626620 Y CN2626620 Y CN 2626620Y
- Authority
- CN
- China
- Prior art keywords
- valve
- water
- backwater
- valve body
- pressure
- 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
A sprayer unloading valve comprises a valve body with a water inlet, an outlet water chamber and a backwater chamber, an outlet water valve component arranged inside the outlet water chamber, a back-water valve component arranged inside the backwater chamber, and a pressure-regulating component unit connected with the valve body and engaged with the outlet water valve set. The outlet water valve component is constituted by an outlet water switch connected with the outlet water chamber and an outlet water valve tip engaged with an outlet water valve seat. The back-water valve component comprises a flat valve seat arranged inside the valve body and engaged with a backwater conical valve, a valve rod connected with the backwater conical valve and a water receptacle communicated with the backwater chamber. The pressure-regulating component unit comprises a connecting tube connected with valve body, a pressure-regulating wheel and an embedded member both connected with the connecting tube, a pressure-regulating wheel/embedded member adjustable pressure-regulating spring, and a valve rod contacted with the pressure-regulating spring.
Description
Technical field
The utility model relates to power driven sprayer, particularly relates to the unloader of power driven sprayer (A type), belongs to the agricultural plant protection mechanical field.
Background technology
When prevention and elimination of disease and pests such as agricultural production and forestry plantation, the normal power driven sprayer that uses of spraying insecticide.When power driven sprayer when quitting work, spray gun one cuts out, pressure just increases, power consumption also increases, sebific duct sets off an explosion easily; Pressure of return water springs back over valve and pump chamber simultaneously, causes machine breakdown.Prior art adopts the hand-pulling unloader, overcomes the sprayer high pressure and damages.But hand-pulling unloader not only effect is relatively poor, and inconvenient operation, and especially pressure is zero after the off-load, needs the long period when spraying again, inefficiency.
The utility model provides a kind of automatic deloading when spray gun cuts out, and keeps voltage stabilizing, the sprayer unloader that can spray immediately when spray gun reopens.The technical scheme of this sprayer unloader is: a valve body is arranged, valve body has water inlet, be shaped on water chamber and backwater cavity in the valve body, be equipped with the outlet valve assembly in the water chamber, be equipped with the back-water valve (BWV) assembly in the backwater cavity, valve body connects valve module of voltage regulation, valve module of voltage regulation matches with the back-water valve (BWV) assembly, it is characterized in that described outlet valve assembly is that water chamber connects effluent switch, effluent switch has the water outlet spring to link to each other with outlet valve, and the outlet valve point matches with the water outlet valve seat; Described back-water valve (BWV) assembly is mounted in the flat valve seat in the valve body, and the flat valve seat matches with the backwater cone valve, and the backwater cone valve connects valve rod, and backwater cavity is communicated with water out adapter; Described valve module of voltage regulation is the tube connector that connects valve body, and tube connector links to each other with inserts with pressure adjusting roller, and pressure adjusting roller and inserts are regulated pressure spring, and pressure spring contacts with valve rod.Between valve rod and valve body, guiding collar is installed, the pad pipe is installed between backwater cone valve and valve body.This unloader is after delivery port is closed, intake antrum pressure increases, water enters in the water outlet valve seat from water inlet and arrives water chamber, and the water of water chamber enters and promotes valve rod in the tube connector, makes pressure spring by compression, backwater cone valve and flat valve seat are separated, water enters backwater cavity, reaches the off-load purpose, but pressure keeps the pressure greater than pressure spring, in case delivery port reopens, sprayer is resumed work immediately.
Description of drawings
Fig. 1 is the utility model sprayer unloader organigram.
The specific embodiment
The utility model discloses the unloader on a kind of power driven sprayer, main purpose is protection sprayer pump, valve and discharge hose etc., and delivery port is closed the energy off-load in the use, and keeps certain pressure, reopens gate out switch and recovers operate as normal immediately.A valve body 1 is arranged, valve body has water inlet 8, be shaped on water chamber 10 and backwater cavity 3 in the valve body, be equipped with the outlet valve assembly in the water chamber 10, be equipped with the back-water valve (BWV) assembly in the backwater cavity, valve body 1 connects valve module of voltage regulation, and valve module of voltage regulation matches with the back-water valve (BWV) assembly, becomes outlet valve assembly, back-water valve (BWV) assembly and valve module of voltage regulation three parts.Wherein said outlet valve assembly is a water chamber 10, and water chamber is communicated with effluent switch 18, outside the effluent switch 18 delivery port 17 is arranged, and has water outlet spring 19 to link to each other with outlet valve 20 (being the water outlet spool) in the effluent switch, and the outlet valve point matches with water outlet valve seat 21.The water of water chamber 10 is discharged from delivery port 17 under the normal condition.Described back-water valve (BWV) assembly is mounted in the flat valve seat 4 in the valve body 1, and flat valve seat 4 matches with backwater cone valve 6, and backwater cone valve 6 connects valve rod 11 by screw 5, and backwater cavity is communicated with water out adapter 2.After effluent switch 18 was closed, the water valve push rod 11 of water chamber 10 disengaged backwater cone valve 6 and flat valve seat 4, and water enters backwater cavity 3, discharges off-load from water out adapter.Described valve module of voltage regulation is the tube connector 12 that connects valve body 1, and tube connector 12 links to each other with inserts 14 with pressure adjusting roller 16, and pressure adjusting roller 16 and inserts 14 are regulated pressure spring 13, and pressure spring 13 contacts with valve rod 11, and pressure spring 13 can have spring protruding 15.Keep certain pressure when having had the pressure regulation assembly to make release, so that the operation of spraying again.Guiding collar 9 is installed between valve rod 11 and valve body, pad pipe 7 is installed between backwater cone valve 6 and valve body 1, help relevant parts and move steadily.
Claims (2)
1, sprayer unloader, a valve body (1) is arranged, valve body has water inlet (8), be shaped on water chamber (10) and backwater cavity (3) in the valve body, water chamber is equipped with the outlet valve assembly in (10), be equipped with the back-water valve (BWV) assembly in the backwater cavity, valve body connects valve module of voltage regulation, valve module of voltage regulation matches with the back-water valve (BWV) assembly, it is characterized in that described outlet valve assembly is that water chamber (10) connects effluent switch (18), effluent switch has water outlet spring (19) to link to each other with outlet valve (20), and the outlet valve point matches with water outlet valve seat (21); Described back-water valve (BWV) assembly is mounted in the flat valve seat (4) in the valve body (1), and flat valve seat (4) matches with backwater cone valve (6), and backwater cone valve (6) connects valve rod (11), and backwater cavity (3) is communicated with water out adapter (2); Described valve module of voltage regulation is the tube connector (12) that connects valve body (1), and tube connector (12) links to each other with inserts (14) with pressure adjusting roller (16), and pressure adjusting roller (16) and inserts (14) are regulated pressure spring (13), and pressure spring (13) contacts with valve rod (11).
2, sprayer unloader as claimed in claim 1 is characterized in that between valve rod (11) and the valve body (1) guiding collar (9) being installed, and pad pipe (7) is installed between backwater cone valve (6) and valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03259232 CN2626620Y (en) | 2003-06-28 | 2003-06-28 | Unloading valve of sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03259232 CN2626620Y (en) | 2003-06-28 | 2003-06-28 | Unloading valve of sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2626620Y true CN2626620Y (en) | 2004-07-21 |
Family
ID=34254786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03259232 Expired - Fee Related CN2626620Y (en) | 2003-06-28 | 2003-06-28 | Unloading valve of sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2626620Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407207A (en) * | 2011-08-26 | 2012-04-11 | 宁波李氏实业有限公司 | Pressure protection mechanism for spray gun |
| CN105114659A (en) * | 2015-09-10 | 2015-12-02 | 哈尔滨市农业科学院 | Control valve for achieving quick pressure relief and same branch pressure in pesticide liquid spraying |
| WO2019109342A1 (en) * | 2017-12-08 | 2019-06-13 | 深圳市大疆创新科技有限公司 | Nozzle assembly, nozzle device and unmanned aerial vehicle |
-
2003
- 2003-06-28 CN CN 03259232 patent/CN2626620Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407207A (en) * | 2011-08-26 | 2012-04-11 | 宁波李氏实业有限公司 | Pressure protection mechanism for spray gun |
| CN105114659A (en) * | 2015-09-10 | 2015-12-02 | 哈尔滨市农业科学院 | Control valve for achieving quick pressure relief and same branch pressure in pesticide liquid spraying |
| WO2019109342A1 (en) * | 2017-12-08 | 2019-06-13 | 深圳市大疆创新科技有限公司 | Nozzle assembly, nozzle device and unmanned aerial vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |