CN104051185A - Self-obstruction-preventing pressure switch - Google Patents
Self-obstruction-preventing pressure switch Download PDFInfo
- Publication number
- CN104051185A CN104051185A CN201310075332.1A CN201310075332A CN104051185A CN 104051185 A CN104051185 A CN 104051185A CN 201310075332 A CN201310075332 A CN 201310075332A CN 104051185 A CN104051185 A CN 104051185A
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- pressure
- pressure switch
- oil
- switch
- induction end
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Abstract
The invention discloses a self-obstruction-preventing pressure switch which includes a casing of the pressure switch. An internal cavity is arranged in the casing. One end of the casing is provided with a pressure induction end. A pressure cavity which is in communication with the internal cavity is arranged in the pressure induction end and the top end of the pressure induction end is provided with a first oil passing hole which is in communication with the pressure cavity. A second oil passing hole which is in communication with the pressure cavity is also arranged in the pressure induction end. An oil passing hole is added to the pressure induction end of the pressure switch so that a problem that at present, a pressure switch of a filter is obstructed by sedimentation of filtered foreign matters in a fuel after being used for a long term is prevented and thus the signal generation reliability of the pressure switch is improved by 100% and consumption of a raw material and energy is reduced.
Description
Technical field
The present invention relates to a kind of pressure switch, be particularly a kind ofly applicable to the anti-from retaining pressure switch of automobile filter.
Background technology
Pressure switch is a kind of simple pressure control device, when being reached rated value by measuring pressure, pressure switch can give the alarm or control signal, the general work principle of pressure switch: be when system internal pressure is during higher or lower than specified safe pressure, in inductor, video disc is instantaneous is moved, by connecting guide rod pull switch joint, be switched on or switched off, when Pressure Drop to or while rising specified recovery value, video disc wink resets, switch automatically resets, or be briefly when by measuring pressure overrate, the free end of flexible member produces displacement, directly or after relatively, promote switch element, change the on off operating mode of switch element, reach and control by the object of measuring pressure.The cleaner pressure switch main purpose of use is to prevent that vehicle from using rear filter core to be stopped up rear fuel oil efficiency of supply decline by foreign material for a long time or the blocked fuel oil of filter core cannot be exported at present, the vehicle oil consumption producing, blowdown strengthens the even situation of stagnation of movement, and when filter core external and internal pressure reaches set point, timely output signal is notified related personnel to clean or changed.
But the cleaner pressure switch of using now all cannot solve the problem that cleaner pressure switch self is stopped up in foreign matter alluvial that is filtered of using in rear fuel long-term, and when such stopping state occurs, be that driver without early warning cannot discover, usually to wait until after vehicle runs out of steam or power declines to a great extent and just can be found by driver, current effective method is all regular or determines mileage vehicle is maintained to more renew cartridge, such way shortcoming is apparent, it has increased the use of vehicle, cost of upkeep, because blowdown flow rate increase also also has a negative impact to environment.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides a kind of solve the easy blockage problem of automobile filter pressure switch anti-from retaining pressure switch.
The present invention for the technical scheme that solves its technical problem and adopt is: a kind of anti-from retaining pressure switch, the housing that comprises pressure switch, in described housing, be provided with inner chamber, one end of housing is provided with pressure sensitive end, in described pressure sensitive end, be provided with the pressure chamber being communicated with inner chamber, and the top of pressure sensitive end is provided with and is communicated with pressure chamber the first oil through, on described pressure sensitive end, be also provided with and be communicated with pressure chamber the second oil through.
As a further improvement on the present invention, described the second oil through be located at pressure sensitive end top, and the first oil through is consistent with the pore size of the second oil through.
The invention has the beneficial effects as follows: the present invention has increased an oil through on the pressure sensitive end of pressure switch, avoided current cleaner pressure switch in fuel, to be filtered the problem that cleaner pressure switch self is stopped up in foreign matter alluvial after long-term use, made the signal production reliability of pressure switch improve 100%. losses that reduced raw material and the energy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the end view of Fig. 1.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only, for explaining the present invention, does not form limiting the scope of the present invention.
Fig. 1-2 shows a kind of anti-a kind of execution mode from retaining pressure switch of the present invention, the housing 1 that comprises pressure switch, in described housing 1, be provided with inner chamber 2, one end of housing 1 is provided with pressure sensitive end 3, in described pressure sensitive end 3, be provided with the pressure chamber 4 being communicated with inner chamber 2, and the top of pressure sensitive end 3 is provided with the first oil through 5 that is communicated with pressure chamber 4, it is entrance pressure mouth, on described pressure sensitive end 3, be also provided with the second oil through 6 that is communicated with pressure chamber 4, i.e. second entrance pressure mouth, described the second oil through 6 be located at pressure sensitive end 3 top, and the first oil through 5 is consistent with the pore size of the second oil through 6, in cleaner pressure switch filter core internal pressure induction end 3 except an entrance pressure mouth, increase again another one entrance pressure mouth, when in cleaner pressure switch filter core, foreign material are more, owing to there being the oil through of two pressure sensitive ends 3, after so the first oil through 5 or the second oil through 6 are blocked, pressure enters inner chamber 2 by another one oil through, make inner chamber 2 external and internal pressures consistent, foreign matter comes off under Action of Gravity Field, the oil through entrance that dredging is blocked, just under such operation principle when the first oil through 5 and the second oil through 6 occur that pressure is uneven, pressure is inputted little oil through can be because the reason of isostasy be cleaned, thereby reach the object that prevents that pressure switch self is blocked.
Claims (3)
1. prevent from retaining pressure switch for one kind, the housing (1) that comprises pressure switch, in described housing (1), be provided with inner chamber (2), one end of housing (1) is provided with pressure sensitive end (3), in described pressure sensitive end (3), be provided with the pressure chamber (4) being communicated with inner chamber (2), and the top of pressure sensitive end (3) is provided with the first oil through (5) that is communicated with pressure chamber (4), it is characterized in that: on described pressure sensitive end (3), be also provided with the second oil through (6) that is communicated with pressure chamber (4).
2. according to claim 1 anti-from retaining pressure switch, it is characterized in that: described the second oil through (6) be located at pressure sensitive end (3) top, and the first oil through (5) is consistent with the pore size of the second oil through (6).
3. according to claim 1 anti-from retaining pressure switch, it is characterized in that: a side of described pressure sensitive end (3) is also provided with a row pressure mouth (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310075332.1A CN104051185A (en) | 2013-03-11 | 2013-03-11 | Self-obstruction-preventing pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310075332.1A CN104051185A (en) | 2013-03-11 | 2013-03-11 | Self-obstruction-preventing pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104051185A true CN104051185A (en) | 2014-09-17 |
Family
ID=51503886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310075332.1A Pending CN104051185A (en) | 2013-03-11 | 2013-03-11 | Self-obstruction-preventing pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104051185A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2578958Y (en) * | 2002-11-06 | 2003-10-08 | 常州市盛士达汽车空调有限公司 | Pressure switch |
| JP2005083395A (en) * | 2003-09-04 | 2005-03-31 | Nifco Inc | Pressure opening and shutting valve |
| CN201651494U (en) * | 2010-05-07 | 2010-11-24 | 上海开维喜阀门集团有限公司 | Waist drum-shaped valve body |
| CN101976631A (en) * | 2010-10-15 | 2011-02-16 | 吴相民 | Pressure switch with load releasing function |
| CN203150473U (en) * | 2013-03-11 | 2013-08-21 | 昆山大庚汽车配件有限公司 | Self-plugging prevention pressure switch |
-
2013
- 2013-03-11 CN CN201310075332.1A patent/CN104051185A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2578958Y (en) * | 2002-11-06 | 2003-10-08 | 常州市盛士达汽车空调有限公司 | Pressure switch |
| JP2005083395A (en) * | 2003-09-04 | 2005-03-31 | Nifco Inc | Pressure opening and shutting valve |
| CN201651494U (en) * | 2010-05-07 | 2010-11-24 | 上海开维喜阀门集团有限公司 | Waist drum-shaped valve body |
| CN101976631A (en) * | 2010-10-15 | 2011-02-16 | 吴相民 | Pressure switch with load releasing function |
| CN203150473U (en) * | 2013-03-11 | 2013-08-21 | 昆山大庚汽车配件有限公司 | Self-plugging prevention pressure switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140917 |