CN2321219Y - Knapsack type pneumatic sprayer - Google Patents
Knapsack type pneumatic sprayer Download PDFInfo
- Publication number
- CN2321219Y CN2321219Y CN 97241659 CN97241659U CN2321219Y CN 2321219 Y CN2321219 Y CN 2321219Y CN 97241659 CN97241659 CN 97241659 CN 97241659 U CN97241659 U CN 97241659U CN 2321219 Y CN2321219 Y CN 2321219Y
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- CN
- China
- Prior art keywords
- housing
- pump
- piston
- interlayer
- bowl
- 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 relates to a knapsack pneumatic sprayer which is used for applying fertilizer and spraying medicine in the agriculture industry and in the forest industry. The utility model is provided with a housing 1, a manual pump, and an accessory, wherein, the manual pump comprises a pump body which is composed of a pump cover 2, a pump barrel 4, and a piston bush 20 which are connected in sequence; a valve chamber is surrounded by an isolated layer with a liquid inlet hole and the screw connecting position of the pump barrel 4 and the piston bush 20; in addition, the utility model also comprises a ball valve which is a small ball 15 in the valve chamber, and a piston 25 which is sheathed on a guide post 26 moves up and down in a reciprocating state with the pump body in the piston bush; the guide post is connected with the housing 1 through a base 21. The utility model has the advantages of reasonable design, simple structure, convenient use, no residual medicine liquid, etc.
Description
The utility model relates to the manpower spraying device, particularly a kind of backpack air-blast atomizer that is used for the agriculture and forestry fertilising, spills the prescription face.
Mainly there is following defective in the knapsack sprayer that purpose is generally used:
At first, the structure more complicated needs the professional to unpick and wash assembling.
Secondly, can not satisfy the requirement that long-range and low amount is sprayed.
Once more, leave raffinate, this had both wasted soup, had increased the cleaning amount again, and was also unfavorable to environmental protection.
The purpose of this utility model is to overcome above-mentioned defective of the prior art, and a kind of backpack air-blast atomizer of simple in structure, dependable performance is provided, and can satisfy various sprinkling needs, comprises ultra low volume spray.
The purpose of this utility model realizes by following scheme: housing, hand pump and annex are arranged, and hand pump comprises the pump housing, ball valve and piston.The pump housing is made up of the pump cover, pump barrel, the piston bush that link to each other successively; Pump barrel and piston bush are threaded with self, and they all have interlayer, and each interlayer all has inlet opening, and threaded connection place of these two and interlayer thereof surround the valve body chamber jointly.Ball valve is the bead that is arranged in the valve body chamber.Piston is enclosed within on the guide pillar, follows the pump housing to pump in piston bush.Guide pillar is linked to each other with housing by pedestal.
Above-mentioned guide pillar can similar bolt arrangement, and 3-6 bar feed liquor slotted eye is arranged on its cylinder, and its threaded body can link to each other with base bottom surface middle part boss.The effect of guide pillar is: connect piston and pad, the stroke that control piston moves upward, feed pathway.Said base is tightened with nut from lower to upper by the screw thread of self, makes it to be fixed on below the interlayer of housing its " bowl " discharge opeing port mouthful on this interlayer.The effect of pedestal is: supporting cell guide and piston, splendid attire are the terminals of soup by the soup that flows in the housing.
The main following points of advantage of the present utility model:
The first, reasonable in design, particularly the design of core component hand pump is all the more so, and not only principle is reliable, work is laborsaving, and simple in structure, and to unpicking and washing of it, assembling need not the professional and just can carry out.
The second, easy to use, can conventional spray, can after stop to apply external force, still can keep the sprinkling ability about 10 seconds, thereby guarantee long-range and low volume again.
The 3rd, the noresidue soup.
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the structural representation of hand pump of the present utility model.
As shown in Figure 1 and Figure 2, the utility model has housing 1, hand pump and annex.Annex comprises: connecting rod 5, joystick 8, braces 10 and have the parts such as boom jet nozzle of switch.In the hole in the positioning sleeve 6 of the slotting respectively people's pump cover 2 in connecting rod 5 two ends, joystick 8, with split pin 7 lockings.On joystick and the body of rod that housing 1 links to each other, stop collar 9 is arranged.Boom jet nozzle links to each other with nipple 11 on the pump cover by connecting sebific duct.Except that annex, all parts all place in the housing 1.
As shown in Figure 3, hand pump comprises the pump housing, ball valve and piston (25).The pump housing, be made up of the pump cover 2, pump barrel 4, the piston bush (20) that link to each other successively, pump barrel links to each other with the screw thread of piston bush with self, and they respectively have 1 interlayer, inlet opening 14,16 is arranged respectively on two interlayers, and described threaded connection place and two interlayers surround the valve body chamber jointly.Ball valve is the bead 15 that is arranged in the valve body chamber.Piston 25 is enclosed within on the guide pillar 26, pumps with the pump housing in piston bush.Guide pillar links to each other with housing 1 by pedestal 21.Catheter 3 is arranged in the pump barrel.Catheter upper end connects with projection 13 embeddings in the pump cover, and is communicated with tubulose apocenosis passage 12 in the pump cover, and there is angle the both sides, lower end, and the pinnacle rests on the interior interlayer of pump barrel.
Above-mentioned guide pillar 26, similar bolt arrangement comprises platform cap, cylinder and threaded body.Around the cylinder, be evenly distributed with 3-6 bar feed liquor slotted eye 17, this hole can upwards pass the platform cap, is with piston 25 on this cylinder.Threaded body links to each other with middle part, the bottom surface boss 22 of pedestal 21, is with pad 18 on this threaded body.Pad is stuck between cylinder bottom surface and the boss end face, and its diameter is more smaller than piston diameter.Piston can select for use elastomeric material to make, and itself and piston bush 20 are tight fit.When the pump housing moved, piston bush drove piston, along the platform cap and the reciprocating motion of the guide pillar cylinder between the pad of guide pillar.
Said base 21 can be " flat bowl " shape; " bowl " mouthful discharge opeing through hole towards housing 1, this through hole is positioned on the bottom interlayer of housing 1; " bowl " limit rests on the edge 19 of described through hole, and sealing ring 24 is arranged therebetween, on " bowl " body screw thread is arranged, and for example on " bowl " body near place, " bowl " limit shown in Fig. 3 screw thread can be arranged.So, be nut 23 on the pedestal with " bowl " body, tighten from lower to upper, pedestal fixedly is hung in below the interlayer of housing 1, thereby guide pillar 26 is closely linked to each other with housing.Above-mentioned edge 19 can be recessed down, after " bowl " limit of pedestal rests this recessed edge, makes pedestal " bowl " limit basal plane concordant or lower slightly with the interlayer plane of housing 1 like this.So that allow housing 1 interior soup all spray, do not stay raffinate by pedestal, the pump housing, shower nozzle.
The brief description course of work of the present utility model once:
During use, with the hand rocking bar of starting, make connecting rod drive the hand pump pump housing and pump, the piston bush drive piston and the pump housing are synchronized with the movement thereupon.For convenience of explanation, can bead 15 be the boundary, be the malleation storehouse with top, with the lower part negative pressure cabin.
When the pump housing and piston moved upward, the soups in the pedestal 21 just entered negative pressure cabin through the feed liquor slotted eye 17 of guide pillar.When the pump housing and piston move downward, because the effect of pad 18, the piston stop motion also makes negative pressure cabin be closed state, the pump housing continues to descend, soup in the negative pressure cabin is upwards washed bead 15 open by inlet opening 16, enter the valve body chamber and enter in pump barrel 4 chambeies, that is to say to have entered the malleation storehouse by inlet opening 14.Like this, because soup has occupied segment space, the malleation storehouse has formed normal pressure.When the pump housing and piston moved upward once more, bead 15 sealed inlet opening 16 downwards under positive pressure, made the soup in the pump barrel not reflux.So come and go 5-6 time, the soup in malleation storehouse constantly increases, and the normal pressure in the malleation storehouse also continues to increase thereupon.So, open spray switch, soup just under the effect of air pressure, behind catheter 3, tubulose apocenosis passage 12, by the nozzle ejection, can apply fertilizer, spill medicine.
By constantly pumping of hand pump, soup constantly enters the malleation storehouse, simultaneously the air pressure in the malleation storehouse is constantly replenished.As long as the air pressure in the hand pump is greater than atmospheric pressure, the just sustainable ejection of soup.
By the motion frequency of control hand pump, can regulate its spray pressure.By replacing and adjusting, can indiscriminately ad. as one wishes carry out the sprinkling of routine or particular form again to spraying pack unit.
Claims (5)
1, a kind of backpack air-blast atomizer, housing (1), hand pump and annex are arranged, it is characterized in that hand pump comprises: the pump housing, be made up of the pump cover (2), pump barrel (4), the piston bush (20) that link to each other successively, in the latter two, its threaded connection place has the interlayer of inlet opening to surround the valve body chamber with it; Ball valve is the bead (15) that is arranged in the valve body chamber, and piston (25) is enclosed within on the guide pillar (26), pumps with the pump housing in piston bush ⒇, and guide pillar is linked to each other with housing (1) by pedestal (21).
2, sprayer according to claim 1, it is characterized in that described guide pillar (26), similar bolt arrangement, comprise the platform cap, the cylinder of feed liquor slotted eye (17) and the threaded body that links to each other with base bottom surface middle part boss (22) are arranged, pad on the threaded body (18) is stuck between cylinder bottom surface and the boss end face, and piston (25) moves back and forth along the cylinder between platform cap and the pad (18).
3, sprayer according to claim 2 is characterized in that described guide pillar (26), is evenly distributed with 3-6 bar feed liquor slotted eye (17) around its cylinder, and this slotted eye upwards passes the platform cap of guide pillar.
4, spraying according to claim 1 and 2 is clamored, and it is characterized in that described pedestal (21), is " flat bowl " shape.The discharge opeing through hole of " bowl " mouth on the interlayer of housing (1), " bowl " limit rests on the edge (19) of this through hole, and sealing ring (24) is arranged therebetween, and usefulness " bowl " body is the nut (23) on the pedestal, tighten from lower to upper, pedestal fixedly is hung in below the interlayer of housing (1).
5, sprayer according to claim 4, it is characterized in that the discharge opeing through hole on the interlayer of described housing (1), its edge (19) is recessed down, after " bowl " limit of pedestal (21) rests this recessed edge (19), make the former edge basal plane concordant or a little less than the interlayer plane of housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97241659 CN2321219Y (en) | 1997-12-24 | 1997-12-24 | Knapsack type pneumatic sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97241659 CN2321219Y (en) | 1997-12-24 | 1997-12-24 | Knapsack type pneumatic sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2321219Y true CN2321219Y (en) | 1999-06-02 |
Family
ID=33951077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97241659 Expired - Fee Related CN2321219Y (en) | 1997-12-24 | 1997-12-24 | Knapsack type pneumatic sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2321219Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948135A (en) * | 2014-09-12 | 2017-07-14 | 中山市雅西环保科技有限公司 | A kind of Self-resetting volume control device |
-
1997
- 1997-12-24 CN CN 97241659 patent/CN2321219Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948135A (en) * | 2014-09-12 | 2017-07-14 | 中山市雅西环保科技有限公司 | A kind of Self-resetting volume control device |
| CN106948134A (en) * | 2014-09-12 | 2017-07-14 | 中山市雅西环保科技有限公司 | A kind of pneumatic control valve and the control device from this pneumatic control valve |
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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 |