CN205503972U - Piston rod is penetrated to integral strong sealed pressure - Google Patents
Piston rod is penetrated to integral strong sealed pressure Download PDFInfo
- Publication number
- CN205503972U CN205503972U CN201620151173.8U CN201620151173U CN205503972U CN 205503972 U CN205503972 U CN 205503972U CN 201620151173 U CN201620151173 U CN 201620151173U CN 205503972 U CN205503972 U CN 205503972U
- Authority
- CN
- China
- Prior art keywords
- hole
- pressure head
- annular groove
- pressure
- depression bar
- 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
Piston rod is penetrated to integral strong sealed pressure relates to a component, and including pressure cap, depression bar and the pressure head of a body structure, the whole diameter of pressure head is big than the depression bar diameter, its characterized in that: the pressure head top be equipped with the hole, drill way department is equipped with the screw thread spiral has a top, top bottom and hole bottom contactless, form an inclosed space, pressure head side be equipped with 3 -5 layer annular groove, the annular groove tank bottom in the intermediate level is equipped with the through -hole, in the airtight space that the through -hole accesss to the top and the hole shape becomes, it has rubber sealing ring to overlap on remaining annular groove. The utility model discloses simple structure, reasonable in design, overall structure has eliminated the accumulative error that more component assembly caused, has simplified parts machining and assembly process, adopts two kinds of sealed means to combine simultaneously, with having a few of overall structure, has eliminated the possibility of leaking.
Description
Technical field:
This utility model relates to a kind of assembling parts, is specifically related to a kind of monoblock type and seals by force shot piston
Bar.
Background technology:
Former shot piston is made up of parts such as shot piston, cushion collar, snap ring, shot piston and nuts.
Owing to Assembly part is more, easily cause assembly accumulation error.Injection in-cylinder pressure is higher simultaneously, part
More assembling uses sealing ring to seal, and the probability of leakage is the biggest.
Utility model content:
Technical problem to be solved in the utility model is to overcome the defect of prior art, it is provided that a kind of whole
Body formula seals by force shot piston.
Technical problem to be solved in the utility model realizes by the following technical solutions.
Monoblock type seals by force shot piston, and including pressure cap, depression bar and the pressure head of integrative-structure, pressure head is whole
Body diameter is big compared with depression bar diameter, it is characterised in that: described pressure head top is provided with hole, is provided with spiral shell at aperture
Stricture of vagina spiral has top, does not contacts with at the bottom of hole bottom described top, forms an airtight space, described
Pressure head side be provided with 3-5 layer annular groove, the annular groove bottom land in intermediate layer is provided with through hole, through hole lead to
In the confined space that top and hole are formed, remaining annular groove is cased with rubber seal ring.
The hole on described pressure head top is through to below pressure cap, and pressure cap is provided with screwed hole, screwed hole and hole
Communicating, on screwed hole, spiral has plug, on the one hand, two ends, hole, by coming directly towards and plug sealing, are full of in hole
Gas, gas is covered with on pressure head between sealing ring by the through hole on the annular groove of pressure head side, forms one and blocks up
Gas wall, strengthens sealing, it is possible to add aqueous solution after mounting, play water-stop, with seal with elastometic washer
In conjunction with, sealing intensity is bigger, on the other hand, if the sealing ring leakage of pressure head front end, causes liquid to flow into
Lower floor's sealing ring, liquid is by, in through hole ostium, opening plug and can remove.
This utility model simple in construction, reasonable in design, overall structure, eliminate the assembling of more part and made
The cumulative error become, simplifies part processing and assembly technology, uses two kinds of seal means to combine simultaneously,
With integrally-built a little, eliminate the probability of leakage.
Accompanying drawing illustrates:
Fig. 1 is old shot piston structural representation；
Fig. 2 is structural representation of the present utility model.
Detailed description of the invention:
For the technological means making this utility model realize, creation characteristic, reach purpose and be prone to bright with effect
White understanding, below in conjunction with being specifically illustrating, is expanded on further this utility model.
Existing old structure shot piston as shown in Figure 1, by shot piston 11, cushion collar 12, card
Ring 13, shot piston 14 and nut 15 form.
Monoblock type as shown in Figure 2 seals by force shot piston, including pressure cap 1, depression bar 2 and of integrative-structure
Pressure head 3, pressure head integral diameter is big compared with depression bar diameter, and pressure head top therein is provided with hole 4, is provided with at aperture
Thread helix has top 5, does not wherein contact with at the bottom of hole bottom top, forms an airtight space, wherein
Pressure head side sets the annular groove 6 that is of five storeys, and the annular groove bottom land in intermediate layer is provided with through hole 7, and through hole leads to
In the confined space that top and hole are formed, remaining annular groove is cased with rubber seal ring 8, wherein pressure head
The hole on top is through to below pressure cap, and pressure cap is provided with screwed hole 9, and screwed hole communicates with hole, on screwed hole
Spiral has plug 10.
Of the present utility model ultimate principle, principal character and of the present utility model excellent have more than been shown and described
Point.Skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments, above-mentioned
Principle of the present utility model is simply described, without departing from this utility model described in embodiment and description
On the premise of spirit and scope, this utility model also has various changes and modifications, these changes and improvements
In the range of both falling within claimed this utility model.This utility model claims scope by appended power
Profit claim and equivalent thereof define.
Claims (2)
1. monoblock type seals by force shot piston, including pressure cap, depression bar and the pressure head of integrative-structure, pressure head
Integral diameter is big compared with depression bar diameter, it is characterised in that: described pressure head top is provided with hole, is provided with at aperture
Thread helix has top, does not contacts with at the bottom of hole bottom described top, forms an airtight space, institute
The pressure head side stated is provided with 3-5 layer annular groove, and the annular groove bottom land in intermediate layer is provided with through hole, through hole
Lead in the confined space of top and hole formation, remaining annular groove is cased with rubber seal ring.
2. seal by force shot piston according to the monoblock type described in claim 1, it is characterised in that: institute
The hole on the pressure head top stated is through to below pressure cap, and pressure cap is provided with screwed hole, and screwed hole communicates with hole,
On screwed hole, spiral has plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620151173.8U CN205503972U (en) | 2016-02-27 | 2016-02-27 | Piston rod is penetrated to integral strong sealed pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620151173.8U CN205503972U (en) | 2016-02-27 | 2016-02-27 | Piston rod is penetrated to integral strong sealed pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205503972U true CN205503972U (en) | 2016-08-24 |
Family
ID=56727017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620151173.8U Expired - Fee Related CN205503972U (en) | 2016-02-27 | 2016-02-27 | Piston rod is penetrated to integral strong sealed pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205503972U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443533A (en) * | 2020-12-10 | 2021-03-05 | 徐州徐工液压件有限公司 | Integrally forged hollow piston rod with earrings |
-
2016
- 2016-02-27 CN CN201620151173.8U patent/CN205503972U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443533A (en) * | 2020-12-10 | 2021-03-05 | 徐州徐工液压件有限公司 | Integrally forged hollow piston rod with earrings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 238251 Ma'anshan province and Anhui City, Wujiang province fine chemical base Patentee after: Anhui Haide Chemical Technology Co., Ltd. Address before: 238251 Ma'anshan province and Anhui City, Wujiang province fine chemical base Patentee before: Anhui haydite oil Chemical Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20210227 |