CN2301557Y - Piston assembly for hand water pump - Google Patents
Piston assembly for hand water pump Download PDFInfo
- Publication number
- CN2301557Y CN2301557Y CN 97209103 CN97209103U CN2301557Y CN 2301557 Y CN2301557 Y CN 2301557Y CN 97209103 CN97209103 CN 97209103 CN 97209103 U CN97209103 U CN 97209103U CN 2301557 Y CN2301557 Y CN 2301557Y
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- CN
- China
- Prior art keywords
- piston
- rubber
- carriage
- utility
- model
- 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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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a piston assembly which is a fitting for hand water pumps. The utility model is composed of a connecting rod (1), a metal piston upper frame (2), a rubber piston (6), a piston supporting frame (3) and a T-shaped tapered rubber water sealing (7). The piston supporting frame is injected and pressed to form by engineering plastic mold; the piston supporting frame is a convex cavity of which the center of the upper part is provided with a circular hole movably matched with the water sealing; the end face of the upper part is provided with a convex ring (7) contacting the water sealing; the inner part of the cavity of the lower part is provided with two to four torsion ribs used for loading and unloading. The utility model has the advantages of metal material saving, simple process, low cost, convenient maintenance, long service life, etc., and can be assembled for the hand water pumps.
Description
The utility model relates to a kind of hand pulsating pump accessory.
The piston assembly of prior art, be made up of metallic piston seat, water seal and rubber piston etc., put on the shelf and the carriage of piston seat are generally processed by iron castings or aluminum casting, and not only there is the processing technology complexity in this technology, ironware also easily gets rusty and is difficult to install and remove repair, and aluminum component is shortcoming such as manufacture cost height then.
Task of the present utility model is to overcome the shortcoming that existing piston assembly exists, and a kind of novel structure is provided, and is easy to install and remove repair, manufacturing process is simple, using effect is good piston assembly.
The utility model, by connecting rod, metallic piston put on the shelf, rubber piston, plastic piston carriage and rubber water sealing form, the piston carriage is one " protruding " shape cavity, put on the shelf the internal thread of bottom of the outside thread on its top and piston matches, rubber piston be locked in that piston is put on the shelf and the piston carriage between, piston carriage center upper portion has a circular water inlet, the water inlet cooperates with " T " cone rubber water seal activity, in the chamber of piston carriage bottom, 2～4 torsion muscle that all distribute are arranged.The effect of torsion muscle is when supplying the mounting or dismounting repair, to block instrument, can be twisted.
The utility model can also be established a prominent ring, so that improve its sand control capability and sealability on the upper end of piston carriage.
The utility model, because the piston carriage is processed by plastic materials, so have following good effect: (1) saves metallic material; (2) processing technology is simple, cost is low; It is convenient to install and remove when (3) changing rubber piston, for ease of maintenaince; (4) the prominent ring design of end face, good seal performance, using effect is good; (5) long service life.
Following embodiment is described further in conjunction with the accompanying drawings:
Fig. 1 is a tectonic maps of the present utility model, and Fig. 2, Fig. 3 and Fig. 4 are respectively plastic piston carriage plan view, top and bottom perspective views.
Among the figure, (1) connecting rod, (2) piston is put on the shelf, (3) piston carriage, (4) torsion muscle, (5) prominent ring, (6) rubber piston, the water seal of (7) T cone rubber.
Present embodiment, connecting rod are round metal bar workpiece, and piston processes after putting on the shelf and adopting iron casting, and piston, water seal are that rubber material is made, and the piston carriage is annotated for the engineering plastics mould and pressed single forming.Each part is finished product through assembling.
Claims (2)
1, a kind of piston assembly of hand pulsating pump, contain that connecting rod (1), metallic piston are put on the shelf (2), rubber piston (6), it is characterized by: also contain a plastic piston carriage (3), the piston carriage is one " protruding " shape cavity, put on the shelf the internal thread of bottom of the outside thread on its top and piston matches, and rubber piston is locked in wherein; Piston carriage center upper portion has a circular water inlet, and there is " T " cone rubber water seal (7) that cooperates with its activity at the place, water inlet; In the chamber of piston carriage bottom, 2～4 torsion muscle (4) that are distribution are arranged.
2, piston assembly according to claim 1 is characterized by: the upper end of described piston carriage has a prominent ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97209103 CN2301557Y (en) | 1997-05-05 | 1997-05-05 | Piston assembly for hand water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97209103 CN2301557Y (en) | 1997-05-05 | 1997-05-05 | Piston assembly for hand water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2301557Y true CN2301557Y (en) | 1998-12-23 |
Family
ID=33928374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97209103 Expired - Fee Related CN2301557Y (en) | 1997-05-05 | 1997-05-05 | Piston assembly for hand water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2301557Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422402A (en) * | 2015-11-04 | 2016-03-23 | 新昌县城关双雄五金厂 | Pressure water feeder hardware set |
-
1997
- 1997-05-05 CN CN 97209103 patent/CN2301557Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422402A (en) * | 2015-11-04 | 2016-03-23 | 新昌县城关双雄五金厂 | Pressure water feeder hardware set |
| CN105422402B (en) * | 2015-11-04 | 2017-12-26 | 新昌县城关双雄五金厂 | A kind of water pressurizing device handware group |
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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 |