CN2215817Y - Diaphragm pump for liquid chemicals - Google Patents
Diaphragm pump for liquid chemicals Download PDFInfo
- Publication number
- CN2215817Y CN2215817Y CN 94236023 CN94236023U CN2215817Y CN 2215817 Y CN2215817 Y CN 2215817Y CN 94236023 CN94236023 CN 94236023 CN 94236023 U CN94236023 U CN 94236023U CN 2215817 Y CN2215817 Y CN 2215817Y
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- Prior art keywords
- piston
- eccentric shaft
- model
- connecting rod
- utility
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- 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 relates to a liquid pump, specifically a diaphragm pump for liquid chemicals. The utility model is characterized in that a worm and gear mechanism is arranged in a pump body, one side of a worm gear is provided with an eccentric shaft, one end of a connecting rod is connected with a piston, and the other end of the connecting rod is connected with the eccentric shaft; a diaphragm is tightly fixed to the top end of the piston by screws through pressure pads, and the periphery of the diaphragm is tightly pressed between a cylinder and a cylinder cover via fastening bolts. The utility model having the advantages of simple structure, light weight, small size, high work efficiency, long service life, etc. can be used for agricultural production.
Description
The utility model relates to the liquid pump, specifically a kind of barrier film spray pump.
As everyone knows, the existing pump that sprays soup to crops, the general piston pump that adopts, be that power makes piston do straight reciprocating motion through reducing gear, by changing the volume of top land cylinder body, improve soup pressure to reach, make the purpose of soup by the atomizing ejection of nozzle place, its reducing gear is band transmission or column gear transmission; Its top land is provided with the sealing offset plate, the sealing offset plate is done straight reciprocating motion with piston, its effect is the gap of reducing piston and cylinder body, increase work efficiency and prevent that medicine liquid leakage etc., the weak point of the spray pump of this structure from being that complex structure, volume are big, cost is high, inefficiency and service life is short.
The purpose of this utility model just is to overcome the deficiencies in the prior art, provide a kind of simple in structure, in light weight, volume is little, cost is low, a kind of barrier film spray pump of high efficiency and long service life.
For achieving the above object, feature of the present utility model is to be provided with worm-and-wheel gear in the pump housing, worm screw connects line shaft, worm gear one side is provided with eccentric shaft, one end and the piston of connecting rod link, the other end and eccentric shaft link, and barrier film is fastened on piston tip through pressure pad by screw, and the periphery of barrier film is pressed between cylinder body and the cylinder cap by fastening bolt.
The utility model is owing to adopt worm-and-wheel gear as deceleration device, make its have simple in structure, volume is little, advantage such as in light weight owing to adopt diaphragm apparatus, soup does not contact with piston, makes it have the advantage of high efficiency, long service life.
Description of drawings:
Accompanying drawing is a schematic diagram of the present utility model, also is the schematic diagram of a kind of embodiment.
Fig. 1 is a main cutaway view of the present utility model, and Fig. 2 is the left view of Fig. 1.
Mark among the figure: the pump housing 1, bearing cap 2, worm screw 3, time voltage stabilizing bag 4, last voltage stabilizing bag 5, joint 6, bearing 7, cylinder body 8, barrier film 9, pressure pad 10, cylinder cap 11, piston 12, connecting rod 13, eccentric shaft 14, worm gear 15, liquid inlet joint I 16, fluid joint I 17, liquid inlet joint II 18, fluid joint II 19, bearing cap 20.
Embodiment: as shown in Figure 1 and Figure 2, material, structure and the method for attachment of the pump housing 1, bearing cap 2, time voltage stabilizing bag 4, last voltage stabilizing bag 5, joint 6, cylinder body 8, cylinder cap 9, liquid inlet joint I 16, fluid joint I 17, liquid inlet joint II 18, fluid joint II 19 and bearing cap 20 are same as the prior art, and this does not give unnecessary details.In the pump housing 1 respectively through bearing, bearing cap and trip bolt be worm gear 15 and worm screw 3 fixedly, worm screw 3 connects line shaft, side at worm gear 15 is provided with eccentric shaft 14, cylinder body 8 is fixed on the pump housing 1 by screw, be provided with piston 12 in the cylinder body 8, one end and the piston 12 of connecting rod 13 link, the other end of connecting rod 13 and eccentric shaft 14 link, barrier film 9 two sides are provided with pressure pad 10, and be fastened on the top of piston 12 by screw, the periphery of barrier film 9 is pressed between cylinder body 8 and the cylinder cap 11 by bolt, is respectively equipped with liquid inlet joint I 16 and fluid joint I 17 with one-way function on cylinder cap 11, and fluid joint I 17 is connected with liquid inlet joint II 18 through taking over.During use, liquid inlet joint I 16 connects the soup source, fluid joint II 19 connects shower nozzle, joint 6 leads to the soup source after connecing overflow valve, when 3 rotations of power drive worm screw, worm gear 15 rotations, through eccentric shaft 14, connecting rod 13 drives piston 12 and does straight reciprocating motion, its motion amplitude is much smaller than prior art, barrier film 9 also moves reciprocatingly with piston 12, when piston 12 was descending, the spatial volume between barrier film 9 and the cylinder cap 11 increased, and produced pull of vacuum, soup is sucked by liquid inlet joint I 16, when piston 12 was up, the spatial volume between barrier film 9 and the cylinder cap 11 reduced, and made soup produce pressure by fluid joint I 17, tube connector, the voltage stabilizing bag is sent into the shower nozzle ejection by fluid joint II 19.If when the soup pressure in the voltage stabilizing bag surpassed predetermined pressure, soup then flowed back to the soup source by joint 6, overflow valve and adapter.The utlity model has simple in structure, advantage such as volume is little, in light weight and operating efficiency height, can be widely used in the agricultural production.
The utility model is owing to adopt worm-and-wheel gear as deceleration device, make its have simple in structure, volume is little, the advantage such as in light weight owing to adopt diaphragm apparatus, soup does not contact with piston, makes it have the advantage of high efficiency, long service life.
Claims (1)
1, a kind of barrier film spray pump, be provided with the pump housing, voltage stabilizing bag, cylinder body, cylinder cap, liquid inlet joint, fluid joint, bearing, bearing cap, screw, bolt, it is characterized in that being provided with in the pump housing worm-and-wheel gear, worm gear one side is provided with eccentric shaft, one end and the piston of connecting rod link, the other end and the eccentric shaft of connecting rod link, and barrier film is fastened on piston tip through pressure pad by screw, and the periphery of barrier film is pressed between cylinder body and the cylinder cap by fastening bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94236023 CN2215817Y (en) | 1994-12-16 | 1994-12-16 | Diaphragm pump for liquid chemicals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94236023 CN2215817Y (en) | 1994-12-16 | 1994-12-16 | Diaphragm pump for liquid chemicals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2215817Y true CN2215817Y (en) | 1995-12-27 |
Family
ID=33844124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94236023 Expired - Fee Related CN2215817Y (en) | 1994-12-16 | 1994-12-16 | Diaphragm pump for liquid chemicals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2215817Y (en) |
-
1994
- 1994-12-16 CN CN 94236023 patent/CN2215817Y/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 |