CN2625872Y - Manometric signal generator - Google Patents
Manometric signal generator Download PDFInfo
- Publication number
- CN2625872Y CN2625872Y CN 03258821 CN03258821U CN2625872Y CN 2625872 Y CN2625872 Y CN 2625872Y CN 03258821 CN03258821 CN 03258821 CN 03258821 U CN03258821 U CN 03258821U CN 2625872 Y CN2625872 Y CN 2625872Y
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- China
- Prior art keywords
- magnetic
- core
- cavity
- round
- magnetic core
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- Expired - Fee Related
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Abstract
A differential pressure indicator is used in a pneumatic or hydraulic system. The utility model comprises a shell and a cavum. The cavum is separated into an oil intake cavity and an oil discharging cavity by a sliding core through dynamic sealing. A compression spring is arranged at one end of the sliding core toward to the oil discharging cavity, meanwhile a magnetic field is arranged thereof. A micro switch is arranged on the shell, the control iron sheet of which is matched with an isolating magnet of a magnetic block. A round cavity is further arranged in the shell beside the oil discharging cavity. A round magnetic core is positioned in the round cavity to match rotation and the round magnetic core is matched with repulsive magnet of the magnetic block. An indicating dial plate is positioned on the surface of the shell and the fixing ends of corresponding indicating pointers are connected with the center of the round magnetic core through a rotation axis, thus forming a differential pressure indicating device. When in work, the sliding core moves as the pressure becomes larger, making the round magnetic core and the indicating pointers rotate at the same time for repulsive magnetic effect of the magnetic block and the round magnetic core, thereby pollution of a filter core can be known timely and intuitively with more convenient use. Further, the filter core can be changed and cleaned in time even the micro switch does not touch off an outer warning circuit for the more reliable working effect of the utility model.
Description
Technical field: the utility model relates to a kind of differential pressure transmitter device that is used for pneumatic or hydraulic system.
Background technology: in hydraulic pressure or pneumatic system, all need filtrator filter pressure oil or pressed gas, filter core can slowly pollute obstruction in the course of the work, may puncture owing to inlet outlet pressure differential is excessive when reaching critical value, need on filtrator, connect the critical pollution degree of congestion of a differential pressure transmitter device warning filter core like this.After general differential pressure transmitter device utilization slide core was wherein moved by pressure reduction, the magnetic interlock triggered microswitch and connects the external alert circuit.But this mode is directly perceived inadequately, can't in time understand the pollution condition of filter core, just can trigger warning when having only obstruction near critical value.And, when microswitch triggers bad or external alert circuit when damaging, can can't report to the police, performance is reliable not enough.
Summary of the invention: at the deficiencies in the prior art, the utility model provides a kind of differential pressure transmitter device that can intuitively indicate the filter element pollution level.
The utility model comprises housing and cavity located therein, this cavity is divided into oil suction chamber and goes out oil pocket by the slide core motive seal, slide core has compression spring on an end that goes out oil pocket, this end is equipped with magnetic patch simultaneously, microswitch also is housed on housing, the control iron plate of this microswitch and the magnetic patch of slide core are isolated magnetic and are cooperated, in going out the other housing of oil pocket, also be provided with circular cavity, circular magnetic core places circular cavity to be rotatably assorted, this circle magnetic core while and magnetic patch magnetic are scolded cooperation, the surface of housing is provided with the indication dial plate, and the stiff end of corresponding pointer then connects circular core center by rotation axis and constitutes the pressure reduction indicating device.
When work, along with increasing slide core, moves pressure reduction, scold effect by the magnetic of magnetic patch and circular magnetic core, circular magnetic core is rotated and synchronous rotating pointer, can in time get information about the pollution level of filter element like this, use more convenient.And microswitch do not trigger the external alert circuit and can in time change clothes filter core yet, and it is more reliable to work.
Further specify the utility model below in conjunction with drawings and Examples.
Description of drawings: accompanying drawing is the main structure synoptic diagram of embodiment.
Embodiment: as shown in the figure, be provided with cavity in the housing 1, this cavity is divided into oil suction chamber 2 and goes out oil pocket 3 by slide core 4 motive seals, and slide core 4 has compression spring 10 on an end that goes out oil pocket 3, and this end is equipped with magnetic patch 9 simultaneously.Microswitch 11 also is housed on housing 1, and the control iron plate 12 of this microswitch 11 and the magnetic patch of slide core 49 are isolated magnetic and are cooperated.Also be provided with circular cavity 5 in the housing 1 that goes out oil pocket 3 sides, circular magnetic core 6 places circular cavity 5 to be rotatably assorted, and these 6 whiles of circle magnetic core and magnetic patch 9 magnetic are scolded cooperation.The surface of housing 1 is provided with indication dial plate 7, and the stiff end of corresponding pointer 8 then connects circular magnetic core 6 centers by rotation axis and constitutes the pressure reduction indicating device.
During use, with oil suction chamber 2 with go out on the filtrator that oil pocket 3 is connected respectively to pneumatic or hydraulic system 11 external warning circuits of microswitch.Along with filter core pollutes obstruction gradually, oil suction chamber 2 and go out oil pocket 3 pressure reduction and increase, the snap-in force that slide core 4 overcomes compression spring 10 moves to going out oil pocket 3 directions, scolds effect by the magnetic of magnetic patch 9 and circular magnetic core 6, circular magnetic core 6 is rotated together with pointer 8 indicate pollution level.After reaching critical value, pointer 8 forwards the caution scale of indication dial plate 7 to, and magnetic patch 9 and control iron plate 12 are near magnetic simultaneously, and interlock triggers microswitch 11, and external warning circuit is reported to the police.
Claims (1)
1, a kind of differential pressure transmitter device, comprise housing and cavity located therein, this cavity is divided into oil suction chamber and goes out oil pocket by the slide core motive seal, slide core has compression spring on an end that goes out oil pocket, this end is equipped with magnetic patch simultaneously, microswitch also is housed on housing, the control iron plate of this microswitch and the magnetic patch of slide core are isolated magnetic and are cooperated, it is characterized by: in going out the other housing (1) of oil pocket (3), also be provided with circular cavity (5), circular magnetic core (6) places circular cavity (5) to be rotatably assorted, this circle magnetic core (6) while and magnetic patch (9) magnetic are scolded cooperation, the surface of housing (1) is provided with indication dial plate (7), and the stiff end of corresponding pointer (8) then connects circular magnetic core (6) center by rotation axis and constitutes the pressure reduction indicating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03258821 CN2625872Y (en) | 2003-06-11 | 2003-06-11 | Manometric signal generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03258821 CN2625872Y (en) | 2003-06-11 | 2003-06-11 | Manometric signal generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2625872Y true CN2625872Y (en) | 2004-07-14 |
Family
ID=34254621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03258821 Expired - Fee Related CN2625872Y (en) | 2003-06-11 | 2003-06-11 | Manometric signal generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2625872Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804270A (en) * | 2010-04-21 | 2010-08-18 | 大连华锐股份有限公司 | Differential pressure transmitter device of filter |
| CN102606561A (en) * | 2012-02-24 | 2012-07-25 | 北京市三一重机有限公司 | Oil pollution control system and oil pollution control method |
| CN107588060A (en) * | 2017-10-20 | 2018-01-16 | 新乡市华航航空液压设备有限公司 | A kind of Split type electric pressure difference signal device structure |
-
2003
- 2003-06-11 CN CN 03258821 patent/CN2625872Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804270A (en) * | 2010-04-21 | 2010-08-18 | 大连华锐股份有限公司 | Differential pressure transmitter device of filter |
| CN101804270B (en) * | 2010-04-21 | 2012-07-18 | 大连华锐重工集团股份有限公司 | Differential pressure transmitter device of filter |
| CN102606561A (en) * | 2012-02-24 | 2012-07-25 | 北京市三一重机有限公司 | Oil pollution control system and oil pollution control method |
| CN102606561B (en) * | 2012-02-24 | 2015-09-02 | 北京市三一重机有限公司 | Oil contamination control system and controlling method thereof |
| CN107588060A (en) * | 2017-10-20 | 2018-01-16 | 新乡市华航航空液压设备有限公司 | A kind of Split type electric pressure difference signal device structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040714 Termination date: 20110611 |