CN2793389Y - Device for preventing from dust entering into open oil tank - Google Patents
Device for preventing from dust entering into open oil tank Download PDFInfo
- Publication number
- CN2793389Y CN2793389Y CN 200520200314 CN200520200314U CN2793389Y CN 2793389 Y CN2793389 Y CN 2793389Y CN 200520200314 CN200520200314 CN 200520200314 CN 200520200314 U CN200520200314 U CN 200520200314U CN 2793389 Y CN2793389 Y CN 2793389Y
- Authority
- CN
- China
- Prior art keywords
- air bag
- oil tank
- air
- dust
- screwed pipe
- 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 - Lifetime
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Abstract
The utility model discloses a device for preventing dust from entering into an open oil tank, an air bag is arranged in an oil tank and an opening of the air bag is connected with an open opening of the oil tank by a hollow screwed pipe which is communicated with the inner cavity thereof. The lower end of the hollow screwed pipe is provided with a circle of dummy club, and the air bag is fixed on the upper end of the dummy club of the hollow screwed pipe. An arc-shaped backing board is arranged between the air bag and the dummy club, and a dust-proof cover is arranged out of the open opening. The utility model keeps the pressure in the oil tank balanced by air pressure in the air bag, the dust in the air is isolated by the air bag and the hydraulic oil is protected from being polluted. The utility model not only has the advantage that the dust in the air can be prevented from entering the oil tank but also has the advantages of simple structure, convenient operation, cost saving, etc.
Description
Technical field:
The utility model relates to a kind of device that prevents dust passing into open-mouthed oil tank, belongs to fuel tank dust control technology field.
Background technique:
In the using process of hydraulic jack, the volume of the hydraulic oil in the fuel tank can be along with the change of the position in hydraulic jack king-rod chamber and is changed, volume changes and can make that the hydraulic oil liquid level fluctuates up and down in the fuel tank in the action implementation, air pressure changes in the fuel tank thereby make, be unfavorable for the normal operation of hydraulic equipment, for the air pressure in the trim tank, generally adopt the opened type fuel tank now, connect an air filter in uncovered outside, by the air pressure balance in uncovered discharge and the suck air adjusting fuel tank.But because air filter can not filter all dust, especially under metallurgy, the contour dust working environment of chemical industry, dust is easy to enter fuel tank with air, polluted hydraulic oil soon, can cause the hydraulic equipment cisco unity malfunction, but also need the regular contaminated hydraulic oil of replacing, improved cost of production.
Summary of the invention:
The purpose of this utility model is: thus provide a kind of simple in structure, easy to use and not only can keep the pressure balance in the fuel tank and can isolate fuel tank internal contact with ambient air and preventing that dust from entering the device that prevents dust passing into open-mouthed oil tank of fuel tank, be not subjected to contamination by dust and overcome the deficiencies in the prior art to protect the hydraulic oil in the fuel tank.
The utility model is to constitute like this: it comprises the fuel tank (1) that is provided with uncovered (2), an air bag (3) is housed, and the opening of air bag (3) is connected on uncovered (2) of fuel tank (1) by a hollow screwed pipe (4) that communicates with its inner chamber in fuel tank (1); There is a circle boss (5) lower end of hollow screwed pipe (4), and air bag (3) is fixed on boss (5) upper end of hollow screwed pipe (4) by nut (6) and pad (7); Between air bag (3) and boss (5), be provided with arc backing plate (8); Outside uncovered (2), be provided with dust-proof cover (9).
Owing to adopted technique scheme; the utility model keeps the balance of pressure in the fuel tank by the air pressure in the air bag; when unnecessary hydraulic oil is got back to fuel tank; the liquid level of fuel tank rises; air becomes malleation in the case; make on the air bag bottom surface and rise; force that air discharges in the air bag; otherwise; when hydraulic jack needs hydraulic oil to replenish; the hydraulic oil liquid level descends and makes the air in the air bag produce negative pressure; thereby the air of band dust enters air bag and makes and reach air pressure balance in the fuel tank, like this because the buffer action of air bag has prevented that the interior hydraulic oil of fuel tank from directly contacting with ambient air; dust in the outside air only can drop in the air bag and can not enter in the fuel tank, thereby has reached the not contaminated purpose of protection hydraulic oil.Therefore the utility model compared with prior art, the utility model not only has can prevent that airborne dust from entering the advantage of fuel tank, but also have simple in structure, easy to use, save advantage such as cost.
Description of drawings:
Accompanying drawing 1 is the structural representation of the utility model device.
Embodiment:
Embodiment of the present utility model: air bag (3) preferably adopts oil resistant rubber to make, earlier hollow screwed pipe (4) and air bag (3) are linked together during making, at the lower end of hollow screwed pipe (4) welding one circle boss (5), air bag (3) and arc backing plate (8) are fixed on boss (5) upper end of hollow screwed pipe (4) with nut (6) and pad (7), then hollow screwed pipe (4) is put in the fuel tank (1) together with air bag (3), and the upper end of hollow screwed pipe (4) is passed uncovered (2) of fuel tank (1), and it is last on hollow screwed pipe (4) with a gland nut (10), make on its uncovered (2) that are fixed on fuel tank (1), in order to reach better dustproof effect, a dust-proof cover (9) can be installed in the upper end of uncovered (2) upper end-hole of hollow screwed pipe (4) covered.
Claims (4)
1. device that prevents dust passing into open-mouthed oil tank, it comprises the fuel tank (1) that is provided with uncovered (2), it is characterized in that: an air bag (3) is housed, and the opening of air bag (3) is connected on uncovered (2) of fuel tank (1) by a hollow screwed pipe (4) that communicates with its inner chamber in fuel tank (1).
2. the device that prevents dust passing into open-mouthed oil tank according to claim 1 is characterized in that: there is a circle boss (5) lower end of hollow screwed pipe (4), and air bag (3) is fixed on boss (5) upper end of hollow screwed pipe (4) by nut (6) and pad (7).
3. the device that prevents dust passing into open-mouthed oil tank according to claim 1 and 2 is characterized in that: be provided with arc backing plate (8) between air bag (3) and boss (5).
4. the device that prevents dust passing into open-mouthed oil tank according to claim 1 is characterized in that: be provided with dust-proof cover (9) outside uncovered (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200314 CN2793389Y (en) | 2005-04-26 | 2005-04-26 | Device for preventing from dust entering into open oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200314 CN2793389Y (en) | 2005-04-26 | 2005-04-26 | Device for preventing from dust entering into open oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2793389Y true CN2793389Y (en) | 2006-07-05 |
Family
ID=36820534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520200314 Expired - Lifetime CN2793389Y (en) | 2005-04-26 | 2005-04-26 | Device for preventing from dust entering into open oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2793389Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134674A (en) * | 2015-08-12 | 2015-12-09 | 兖州煤业股份有限公司 | Hydraulic oil tank and engineering machinery employing same |
| CN105626599A (en) * | 2014-11-27 | 2016-06-01 | 无锡市海骏液压机电设备有限公司 | Stable pressurization type oil tank provided with air bag |
-
2005
- 2005-04-26 CN CN 200520200314 patent/CN2793389Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626599A (en) * | 2014-11-27 | 2016-06-01 | 无锡市海骏液压机电设备有限公司 | Stable pressurization type oil tank provided with air bag |
| CN105134674A (en) * | 2015-08-12 | 2015-12-09 | 兖州煤业股份有限公司 | Hydraulic oil tank and engineering machinery employing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20071219 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |