CN2768184Y - Pressure switch of loss pressure warning device - Google Patents
Pressure switch of loss pressure warning device Download PDFInfo
- Publication number
- CN2768184Y CN2768184Y CN 200420099068 CN200420099068U CN2768184Y CN 2768184 Y CN2768184 Y CN 2768184Y CN 200420099068 CN200420099068 CN 200420099068 CN 200420099068 U CN200420099068 U CN 200420099068U CN 2768184 Y CN2768184 Y CN 2768184Y
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- CN
- China
- Prior art keywords
- switch
- push rod
- pressure
- piston
- normally closed
- 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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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses a pressure switch of a pressure loss warning device, which comprises a switch housing body. A piston cavity is arranged in the switch housing body. A piston which can be moved in the piston cavity is arranged in the piston cavity. The piston cavity at one side of the piston is provided with an oil inlet which is communicated with a pressure fluid pipeline, and the other side of the piston is provided with a push rod which can be pushed by the piston. The end part of the push rod is provided with a normally closed switch which is pushed by the push rod. An elastic device which causes the push rod to reset is arranged in the switch housing body. When the pressure is normal, the piston pushes the push rod which pushes the normally closed switch to turn on. Now the pressure switch of a pressure loss warning device does not send out electrical signals outwards. Once the pressure is reduced to a certain degree or the oil pressure is lost, the normally closed switch closes and sends out electrical signals outwards under the action that the elastic device causes the push rod to reset so as to remind drivers to make response in time in order to prevent traffic accidents occurring.
Description
Technical field
The utility model relates to a kind of pressure switch, relates in particular to a kind ofly to break down and the pressure switch of the outside output signal of telecommunication of build-up of pressure when losing at the automotive oil pressing system.
Background technology
The oil hydraulic system of motor vehicle is extremely important, especially brake system is played crucial effects, in case oil hydraulic system lost efficacy, brake is lost efficacy, and causes the serious accident of car crash.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of pressure switch of in time sending the decompression power warning device of decompression signal after oil hydraulic system lost efficacy.
For achieving the above object, the technical solution of the utility model is: the pressure switch of decompression power warning device, comprise switch case, be provided with plunger shaft in the described switch case, be provided with the piston that can in plunger shaft, move in the plunger shaft, the plunger shaft of piston one side is provided with the oil-in with the pressure fluid pipeline connection, the opposite side of piston is provided with can be by the push rod of piston promotion, the end of push rod is provided with the normally closed switch that is promoted by push rod, also is provided with the elastic device that push rod is resetted in the described switch case.
As a kind of improvement, the elastic device that push rod is resetted in the described switch case is the spring that is arranged between normally closed switch and the push rod end.
Owing to adopt technique scheme, the pressure switch of decompression power warning device, comprise switch case, be provided with plunger shaft in the described switch case, be provided with the piston that can move in plunger shaft in the plunger shaft, the plunger shaft of piston one side is provided with the oil-in with the pressure fluid pipeline connection, and the opposite side of piston is provided with can be by the push rod of piston promotion, the end of push rod is provided with the normally closed switch that is promoted by push rod, also is provided with the elastic device that push rod is resetted in the described switch case; Pressure just often, piston promotes push rod, promoting normally closed switch by push rod opens, this moment, the pressure switch of decompression power warning device was not outwards sent the signal of telecommunication, in case be reduced to a certain degree or lose oil pressure, under the effect of push rod Flexible Reset device, normally closed switch is closed and outwards send the signal of telecommunication, remind the driver in time to react, thus the generation that avoids traffic accident.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
Embodiment
As shown in drawings, the pressure switch of decompression power warning device comprises switch case 1, be provided with plunger shaft 2 in the described switch case 1, be provided with the piston 3 that can in plunger shaft 2, move in the plunger shaft 2, the plunger shaft 2 of piston 3 one sides is provided with the oil-in 4 with the pressure fluid pipeline connection, the opposite side of piston 3 is provided with can be by the push rod 7 of piston 3 promotions, the end of push rod 7 is provided with the normally closed switch 5 that is promoted by push rod 7, also be provided with the elastic device that push rod 7 is resetted in the described switch case 1, the elastic device that push rod 7 is resetted in the described switch case 1 is the spring 6 that is arranged between normally closed switch 5 and push rod 7 ends.
Be provided with the adjusting device of regulating relative position between normally closed switch 5 and the switch case 1 between described normally closed switch 5 and the switch case 1.The adjusting device of relative position is the screw rod and the screw that is arranged on the switch case 1 that is arranged on the normally closed switch 5 between described adjusting normally closed switch 5 and the switch case 1.This structure can realize that the utility model sends the pressure critical point of alarm signal by regulating the relative position between normally closed switch 5 and the switch case 1.
The utility model is installed on the oil pipeline of motor vehicle, and be electrically connected with acoustic-optic alarm, its operation principle is: pressure just often, piston promotes push rod, promotes normally closed switch by push rod and opens, this moment, the pressure switch of decompression power warning device was not outwards sent the signal of telecommunication, in case lose oil pressure, under the effect of push rod Flexible Reset device, the closed signal of telecommunication that also outwards sends of normally closed switch, remind the driver in time to react, thus the generation that avoids traffic accident.
The utility model is simple in structure, reliable operation, and useful life is longer, is a kind of breakthrough to prior art.
Claims (4)
1. the pressure switch of decompression power warning device, comprise switch case (1), it is characterized in that: be provided with plunger shaft (2) in the described switch case (1), be provided with the piston (3) that can in plunger shaft (2), move in the plunger shaft (2), the plunger shaft (2) of piston (3) one sides is provided with the oil-in (4) with the pressure fluid pipeline connection, the opposite side of piston (3) is provided with can be by the push rod (7) of piston (3) promotion, the end of push rod (7) is provided with the normally closed switch (5) that is promoted by push rod (7), also is provided with the elastic device that push rod (7) is resetted in the described switch case (1).
2. the pressure switch of decompression power warning device as claimed in claim 1 is characterized in that: the elastic device that push rod (7) is resetted in the described switch case (1) is the spring (6) that is arranged between normally closed switch (5) and push rod (7) end.
3. the pressure switch of decompression power warning device as claimed in claim 1 is characterized in that: be provided with the adjusting device of regulating relative position between normally closed switch (5) and the switch case (1) between described normally closed switch (5) and the switch case (1).
4. the pressure switch of decompression power warning device as claimed in claim 3 is characterized in that: the adjusting device of relative position is for being arranged on the screw rod and the screw that is arranged on the switch case (1) on the normally closed switch (5) between described adjusting normally closed switch (5) and the switch case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420099068 CN2768184Y (en) | 2004-12-29 | 2004-12-29 | Pressure switch of loss pressure warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420099068 CN2768184Y (en) | 2004-12-29 | 2004-12-29 | Pressure switch of loss pressure warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2768184Y true CN2768184Y (en) | 2006-03-29 |
Family
ID=36682053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420099068 Expired - Fee Related CN2768184Y (en) | 2004-12-29 | 2004-12-29 | Pressure switch of loss pressure warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2768184Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963349A (en) * | 2012-12-11 | 2013-03-13 | 四川制动科技股份有限公司 | Air brake fault alarm device for railway vehicle |
| CN106609781A (en) * | 2015-10-26 | 2017-05-03 | 安徽华尔泰化工股份有限公司 | Gas making oil pump control device |
| CN106627723A (en) * | 2016-09-30 | 2017-05-10 | 杨娇仔 | Special steering wheel for unmanned driving |
| CN106847603A (en) * | 2017-02-13 | 2017-06-13 | 武汉大学 | Gas type high-voltage charging is switched |
-
2004
- 2004-12-29 CN CN 200420099068 patent/CN2768184Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963349A (en) * | 2012-12-11 | 2013-03-13 | 四川制动科技股份有限公司 | Air brake fault alarm device for railway vehicle |
| CN102963349B (en) * | 2012-12-11 | 2015-01-07 | 四川制动科技股份有限公司 | Air brake fault alarm device for railway vehicle |
| CN106609781A (en) * | 2015-10-26 | 2017-05-03 | 安徽华尔泰化工股份有限公司 | Gas making oil pump control device |
| CN106609781B (en) * | 2015-10-26 | 2018-12-28 | 安徽华尔泰化工股份有限公司 | A kind of gas making oil pump control apparatus |
| CN106627723A (en) * | 2016-09-30 | 2017-05-10 | 杨娇仔 | Special steering wheel for unmanned driving |
| CN106847603A (en) * | 2017-02-13 | 2017-06-13 | 武汉大学 | Gas type high-voltage charging is switched |
| CN106847603B (en) * | 2017-02-13 | 2018-11-13 | 武汉大学 | Gas type high-voltage charging switchs |
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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 |