CN2390414Y - Special combined pump for sprayer - Google Patents
Special combined pump for sprayer Download PDFInfo
- Publication number
- CN2390414Y CN2390414Y CN 99217449 CN99217449U CN2390414Y CN 2390414 Y CN2390414 Y CN 2390414Y CN 99217449 CN99217449 CN 99217449 CN 99217449 U CN99217449 U CN 99217449U CN 2390414 Y CN2390414 Y CN 2390414Y
- Authority
- CN
- China
- Prior art keywords
- end cover
- cavity
- sprayer
- piston
- connecting rod
- 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 discloses a special combined pump for a sprayer. A cavity is formed by sealing an upper end cover, a pump body and a lower end cover, a piston is fixed between the lower end cover and the pump body, the piston is in the shape of ' disc ', and the cavity is divided into an upper cavity and a lower cavity which are not mutually communicated. The bottom center of the piston is connected with a connecting rod which is extended out of the pump body. The upper end cover and the lower end cover are respectively provided with a water outlet and an inlet hole, and a command ball is respectively arranged in the inlet holes and the water outlets. Efficiency is high when a sprayer assembled with the utility model is used. Liquid medicine overflow can not occur because of better air tightness, and thus an operation personnel's poison accidents are prevented from happening.
Description
The utility model relates to a kind of sprayer pneumatic means, refers in particular to a kind of sprayer combination pump specially.
At present, the agroatomizer of selling on the market, majority is to utilize the air pressure principle to make the hydraulic pressure of sprayer the inside go into air-pressure chamber by connecting rod pulling piston, the drawback that exists is as follows: when connecting rod upwards draws piston, liquid medicine tends to along with the sprayer conduit has spillover, be easy to like this operating personnel's intoxication accident takes place, but also exist service life short, during operating cost, shortcoming such as effort.
For solving above-mentioned drawback, the utility model purpose provides a kind of safe and reliable sprayer combination pump specially.
The utility model is achieved in that
A kind of sprayer combination pump specially forms cavity 8 by upper end cover 1, the pump housing 2 and bottom end cover 5 sealings, is fixed with elastic force piston 3 between the bottom end cover 1 and the pump housing 2, and elastic force piston 3 main bodys are " dish " shape, and cavity is divided into not connected epicoele 6 cavity of resorptions 7; Elastic force piston 3 bottom center connect connecting rod 4, and connecting rod 4 stretches out outside the pump housing 2; Upper end cover 1, bottom end cover 5 have apopore and inlet opening respectively, and commander's ball is respectively arranged in inlet opening and the apopore.
Technological progress of the present utility model is: the sprayer that uses the utility model to make is time saving and energy saving, the efficient height, and because air-tightness is better, liquid medicine can take place overflow, prevented the generation of operating personnel's intoxication accidents.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that the A of sprayer combination pump specially shown in Figure 1 is to partial view.
Embodiment: as shown in Figure 1, the utility model mainly forms cavity 8 by upper end cover 1, the pump housing 2 and bottom end cover 5 sealings, is fixed with elastic force piston 3 between the bottom end cover 1 and the pump housing 2, and piston 3 main bodys are " dish " shape, and cavity is divided into not connected epicoele 6 and cavity of resorption 7; Piston 3 bottom center connect connecting rod 4, and connecting rod 4 stretches out outside the pump housing 2; Upper end cover 1, bottom end cover 5 have apopore and inlet opening respectively, and commander's ball is respectively arranged in inlet opening and the apopore.This novel sprayer main body downside that is connected to, the inlet opening is connected on the sprayer main body lateral wall by conduit; Be connected with air-pressure chamber and injection apparatus above the apopore respectively, the three forms three-way valve device; When connecting rod was upwards lifted, inlet opening commander's ball was opened, and the closed liquid medicine of apopore commander ball enters cavity of resorption; When connecting rod presses down, inlet opening commander's ball closure, cavity of resorption pressure increases, and forces liquid medicine upwards to enter air-pressure chamber by apopore, and this moment, apopore was commanded ball because action of gravity makes the apopore closure, prevented that liquid medicine from flowing backwards; By the moving up and down of connecting rod, make liquid medicine enter air-pressure chamber like this,, when the operation of needs spray medicine, open the injection apparatus switch, can carry out operation because apopore, air-pressure chamber and injection apparatus form three-way valve device; When not needing work, liquid medicine is housed in the air-pressure chamber.
Claims (2)
1, a kind of sprayer combination pump specially, it is characterized in that: by upper end cover (1), the pump housing (2) and bottom end cover (5) sealing formation cavity (8), be fixed with elastic force piston (3) between the bottom end cover (1) and the pump housing (2), elastic force piston (3) main body is " dish " shape, and cavity is divided into not connected epicoele (6) and cavity of resorption (7); Elastic force piston (3) bottom center connects connecting rod (4), and connecting rod (4) stretches out outside the pump housing (2); Upper end cover (1), bottom end cover (5) have apopore and inlet opening respectively, and commander's ball is respectively arranged in inlet opening and the apopore.
2, a kind of sprayer combination pump specially according to claim 1, it is characterized in that: described elastic force piston (3) is made with elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99217449 CN2390414Y (en) | 1999-07-30 | 1999-07-30 | Special combined pump for sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99217449 CN2390414Y (en) | 1999-07-30 | 1999-07-30 | Special combined pump for sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2390414Y true CN2390414Y (en) | 2000-08-09 |
Family
ID=34008881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99217449 Expired - Fee Related CN2390414Y (en) | 1999-07-30 | 1999-07-30 | Special combined pump for sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2390414Y (en) |
-
1999
- 1999-07-30 CN CN 99217449 patent/CN2390414Y/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 | ||
| 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 |