CN2179207Y - Piston device for compressing air of sprayer - Google Patents
Piston device for compressing air of sprayer Download PDFInfo
- Publication number
- CN2179207Y CN2179207Y CN 93222584 CN93222584U CN2179207Y CN 2179207 Y CN2179207 Y CN 2179207Y CN 93222584 CN93222584 CN 93222584 CN 93222584 U CN93222584 U CN 93222584U CN 2179207 Y CN2179207 Y CN 2179207Y
- Authority
- CN
- China
- Prior art keywords
- piston
- rubber seal
- seal ring
- sprayer
- plastic
- 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
Links
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- Sealing Devices (AREA)
Abstract
The utility model relates to a piston device for compressing air for an agricultural sprayer. The utility model is composed of a plastic piston, and a rubber sealing ring which is sheathed in the annular groove of the skirt section of the piston. A piston device replaces the traditional oxhide bowl. The utility model has the advantages of good sealing performance, simple structure, strong durability, and convenient disassembly and assembly.
Description
The utility model relates to the calm the anger piston apparatus of usefulness of agricultural atomizer.
In traditional agricultural atomizer, being installed in the device that is used for calming the anger in the sprayer pump all is to adopt leather cup.The in use very easy damage of leather cup, thus often cause and leak.And it is very inconvenient again to damage back leather cup dismounting and change.When not rolling over as getting rusty when the hold-down nut on the sprayer stopper rod threaded end, leather cup renews just very difficult.Past people attempts to improve its deficiency under the version that does not change leather cup, and the result is undesirable, is not only also all solved preferably so far.
The purpose of this utility model is exactly to propose the calm the anger piston device of usefulness of a kind of agricultural atomizer.
The calm the anger piston device of usefulness of sprayer, comprise plastic piston and rubber seal ring, its special feature is that the external end head that end internal thread hole and this screwed hole are arranged that has the usefulness that is connected with exterior part in the middle of the plastic piston bottom is made hexagon, the periphery of this piston skirt has annular groove one, rubber seal ring is sleeved in the annular groove of this piston skirt, have on this top land end face exterior rim and be used to prize the breach that rubber seal ring is thrown off piston ring groove more than one, and the diameter big 0～3mm of the internal diameter of rubber seal ring at the bottom of than the plastic piston skirt ring groove, the external diameter of rubber seal ring is than the big 0～3mm of plastic piston skirt section external diameter, and the thickness of rubber seal ring is than the little 0～1mm of width of plastic piston skirt ring groove.
The calm the anger piston device of usefulness of sprayer, its rubber seal ring can be made by acrylonitrile-butadiene rubber.
The utility model has the advantages that: good airproof performance, durability is stronger, and is simple in structure, removes and installs all very convenient.
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 1 is a Figure of abstract.
Accompanying drawing 2 is the vertical view of accompanying drawing 1.
The calm the anger piston device of usefulness of sprayer is made up of plastic piston 1 and rubber seal ring 2.The external end head that end internal thread hole and this screwed hole are arranged that has the usefulness that is connected with exterior part in the middle of the plastic piston bottom is made hexagon, so that installation and removal, the periphery of this piston skirt has annular groove one, rubber seal ring is sleeved in the annular groove of this piston skirt, have on this top land end face exterior rim and be used to prize the breach that rubber seal ring is thrown off piston ring groove more than one, and the diameter big 0～3mm of the internal diameter of rubber seal ring at the bottom of than the plastic piston skirt ring groove, the external diameter of rubber seal ring is than the big 0～3mm of plastic piston skirt section external diameter, and the thickness of rubber seal ring is than the little 0～1mm of width of plastic piston skirt ring groove.Rubber seal ring is made with acrylonitrile-butadiene rubber, makes it that oil resistivity preferably be arranged.Leave on the top land end face exterior rim and arrange three well-balanced breach,, also can be used as the effect port of pressed gas the rubber seal anchor ring except that as the dismounting sled mouth.The plastic piston mould forms one, and its skirt section external diameter is less than sprayer pump internal diameter 0.5mm, the end screwed hole degree of depth is arranged to the piston skirt first half in the middle of this piston bottom end, enough bonding strengths is arranged to guarantee exterior part, and this internal thread aperture less than the piston skirt annular groove at the bottom of diameter.When installing and using, the piston of loading onto rubber seal ring is connected on the sprayer stopper rod threaded end, and then gets final product in the sprayer pump of packing into.Because sprayer stopper rod threaded end is connected in having in the end internal thread hole of piston and seals, therefore just exempted the stopper rod threaded end and got rusty, but also saved metal nuts.Be fit into the rubber seal ring in the pump, less because of itself and the interactional contact-making surface of pump inwall, thereby the sealing of rubber seal ring and durability are all better, are longer than the ox-hide bowl service life more than one times.When piston in motion process, the breach on the piston tip face exterior rim acts on one side ora terminalis face of rubber seal ring by pump gas inside pressure, just makes its outside expansion.Thereby strengthened when needing to change after the rubber seal ring normal wear, as long as with a tiny strong old ring that prizes, the new rubber seal ring that changes the outfit back again gets final product, and it is all very convenient to load and unload installation.
Claims (2)
1, the calm the anger piston device of usefulness of sprayer, comprise plastic piston and rubber seal ring, the external end head that end internal thread hole and this screwed hole are arranged that it is characterized in that having in the middle of the plastic piston bottom usefulness that is connected with exterior part is made hexagon, the periphery of this piston skirt has annular groove one, rubber seal ring is sleeved in the annular groove of this piston skirt, have on this top land end face exterior rim and be used to prize the breach that rubber seal ring is thrown off piston ring groove more than one, and the diameter big 0～3mm of the internal diameter of rubber seal ring at the bottom of than the plastic piston skirt ring groove, the external diameter of rubber seal ring is than the big 0～3mm of plastic piston skirt section external diameter, and the thickness of rubber seal ring is than the little 0～1mm of width of plastic piston skirt ring groove.
2, the sprayer according to claim 1 piston device of usefulness of calming the anger is characterized in that rubber seal ring made by acrylonitrile-butadiene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93222584 CN2179207Y (en) | 1993-08-18 | 1993-08-18 | Piston device for compressing air of sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93222584 CN2179207Y (en) | 1993-08-18 | 1993-08-18 | Piston device for compressing air of sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2179207Y true CN2179207Y (en) | 1994-10-12 |
Family
ID=33801133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93222584 Expired - Fee Related CN2179207Y (en) | 1993-08-18 | 1993-08-18 | Piston device for compressing air of sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2179207Y (en) |
-
1993
- 1993-08-18 CN CN 93222584 patent/CN2179207Y/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 |