CN203135831U - Induction type electronic control switch - Google Patents
Induction type electronic control switch Download PDFInfo
- Publication number
- CN203135831U CN203135831U CN 201320139864 CN201320139864U CN203135831U CN 203135831 U CN203135831 U CN 203135831U CN 201320139864 CN201320139864 CN 201320139864 CN 201320139864 U CN201320139864 U CN 201320139864U CN 203135831 U CN203135831 U CN 203135831U
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- CN
- China
- Prior art keywords
- pressure
- control switch
- pointer
- control circuit
- adjustable column
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- Expired - Fee Related
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Abstract
An induction type electronic control switch comprises a front panel and a housing connected with each other. A control circuit board in the housing is mounted on an installation seat and is provided with relays. The installation seat is provided with a pressure source joint. The pressure source joint is connected with a Bourdon tube pressure gauge core. The Bourdon tube pressure gauge core is connected with a pointer. An inner side of the front panel is provided with a lower pressure induction device and an upper pressure induction device respectively. A dial is arranged between the pointer and the Bourdon tube pressure gauge core. An external end part of the pointer extends to a radial position of the dial where the lower pressure induction device and the upper pressure induction device locate. The external end part of the pointer is provided with a magnetic inductivity block. The lower pressure induction device and the upper pressure induction device are internally provided with a coil respectively. The two coils are electrically connected with a control circuit on the control circuit board through a lead respectively. By closing the magnetic inductivity block to the coils, the coils generate oscillation current, and thus the relays are enabled to connect or disconnect a power supply.
Description
Technical field
The utility model relates to a kind of control switch, relates in particular to a kind of induction type electronic control switch of controlling for fluid pressure.
Background technology
China's utility model patent (publication number: disclose a kind of electron pressure switch CN201233838Y), comprise bourdon tube pressure gauge and a pressure limiting device that is connected in the bourdon tube pressure gauge, pressure limiting device is used for controlling the closure of electron pressure switch, pressure limiting device comprises pressure-regulating device and control device again, do the pressure indication by the bourdon tube pressure gauge that adopts stable performance, in conjunction with adjusting at any time, the pressure-regulating device of threshold pression and carry out on, the control device of lower limit signal acquisition process, on making, threshold pression is easy to adjust, indication is directly perceived, photoelectric sensor sensibility and accuracy height, product reliability is good, long service life.Have simple to operate, use safety, reliable, and can adjust the advantage of upper and lower limit pressure in working order down at any time, can be widely used in various air pressure or the fluid pressure line environment.
This electron pressure switch is to utilize photoelectric sensor to realize closing and closing of pressure control switch, but because the field of employment complexity of pressure control switch, the pressure control switch that particularly is applied on the water pump generally all is embedded in below ground, moist environment is unfavorable for the assurance of pressure control switch work sensitivity, after after a while, the optoelectronic induction parts need to change, otherwise can have influence on the operate as normal of whole fluid delivery system.If this electron pressure switch is arranged on the open air to be used, if the irradiation of high light is arranged, this electron pressure switch then can lose efficacy, thereby loses the water pump control effect.
Summary of the invention
For overcoming above-mentioned defective, the purpose of this utility model is: a kind of induction type pressure control switch is provided, and the stability in use of this pressure control switch is good.
For reaching described purpose, technical solution adopted in the utility model: a kind of induction type electronic pressure control switch, comprise the front panel and the housing that are linked together, control circuit board in the housing is installed on the mount pad, control circuit board is provided with relay, mount pad is provided with the pressure source joint, pressure source joint and Bourdon pressure gauge core link, be connected with pointer on the Bourdon pressure gauge core, the inboard of plate is respectively arranged with and presses down induction installation and last pressure sensitivity should be installed in front, between pointer and Bourdon pressure gauge core, be provided with dial plate, the outer end of pointer extend into and presses down radial position place that induction installation and last pressure sensitivity should be installed residing dial plate, outer end at pointer is provided with magnetic inductive block, should install and press down in last pressure sensitivity and be respectively equipped with coil in the induction installation, two coils be electrically connected with control circuit on the control circuit board by lead respectively.The pressure source joint is used for being connected with fluid circuit, fluid pressure actuated Bourdon pressure gauge core in the fluid circuit drives throw of pointer, the outer end of pointer deflects into pressure sensitivity should install and press down the induction installation position time, magnetic inductive block and coil produce oscillating current and act on the control circuit, this oscillating current impels opening with disconnected of relay, and then finishes pump outage or conducting.The material of magnetic inductive block can be iron, also can be nickel-clad iron.
Described upward pressure sensitivity should be installed and press down induction installation and is separately positioned on pressure adjusting gear ring and press down on the adjusting gear ring, and these two gear rings link with two governor motions that reach hull outside respectively, and under the effect of governor motion, gear ring turns.
Described governor motion comprises regulating shaft, is respectively equipped with intermeshing tooth between the outer peripheral face of two regulating shaft outer peripheral faces and two gear rings.
Be provided with retainer plate in mount pad, two gear rings are socketed on the retainer plate coaxially.
Described governor motion also comprises adjustable column, and adjustable column is plugged in the regulating shaft, and both are circumferentially fixing, are provided with some helical teeth that cooperatively interact between adjustable column and regulating shaft end, and the two ends of adjustable column inner spring act on respectively on adjustable column and the regulating shaft.
Described dial plate dorsal part is provided with the LED-backlit source plate, and the LED lamp on the LED-backlit source plate is electrically connected with control circuit.
Described relay comprises main relay and the auxiliary relay that is electrically connected.
Therefore, the beneficial effects of the utility model: because this pressure controller by magnetic inductive block and coil the variation of relative position takes place under the effect of fluid pressure, the relative position between them changes the situation that has reflected fluid pressure truly.The variation of magnetic inductive block and coil relative position can produce oscillating current, and then impels circuit breaker to disconnect pumping source or conducting pumping source, reaches the purpose that the work of pump is controlled.This pressure controller is subjected to the influence of environment little, and stability in use can be guaranteed, and conveniently the flow of pipeline inner fluid is controlled.
Description of drawings
Fig. 1 is the dispersed structure figure of this induction type pressure control switch.
Fig. 2 goes up in this induction type pressure control switch to press the structure chart of regulating gear ring.
Fig. 3 presses down the structure chart of regulating gear ring in this induction type pressure control switch.
Embodiment
See Fig. 1, the structure of this induction type pressure control switch comprises front panel 15 and the housing 1 that fastening is linked together, and front panel 15 and housing 1 have formed cavity between the two.Be provided with mount pad 6 in this cavity, fixedly have control circuit board 4, control circuit to be arranged on the control circuit board 4 on the mount pad 6, be fixed on the control circuit board 4 as the relay of a control circuit part.Relay is two, and one is main relay 2, and another is auxiliary relay 3, and two relays are set, and can effectively improve the job stability of this pressure control switch.
At mount pad 6 discoid dial plate 12 is arranged fixedly, dial plate 12 fronts are provided with the scale of some demonstration fluid pressures, and the front of dial plate 12 is towards front panel 15, and front panel 15 is provided with transparent plates.Pointer 13 is between dial plate 12 and plates, and the dorsal part of dial plate 12 is provided with Bourdon tube watch core 7, and pointer 13 links with Bourdon tube watch core 7.Be connected with pressure source joint 5 on the mount pad 6, pressure source joint 5 links with Bourdon tube watch core 7.Pressure source joint 5 communicates with fluid delivery pipeline, truly reflects the pressure of transfer pipeline inner fluid by the deflection of pointer 13.
The inboard of front panel 15 is provided with pressure sensitivity should install 17 and press down induction installation 18, last pressure sensitivity should install 17 with press down induction installation 18 and upwards be in identical position in dial plate 12 footpath, the outer end of pointer 13 extend into pressure sensitivity should install 17 with press down the radial position of induction installation 18 on dial plate 12.Outer end at pointer 13 is provided with magnetic conductor, is respectively arranged with coil in two induction installations, and coil is electrically connected with control circuit by lead.
In conjunction with Fig. 1,2,3, for convenient the controlled pressure of this pressure control switch is regulated, at mount pad 6 retainer plate 14 is arranged fixedly, coaxial being socketed with pressed adjusting gear ring 11 and pressed down adjusting gear ring 9 on the retainer plate 14, last pressure sensitivity should be installed 17 and is arranged on and press regulate on the gear ring 11, presses down induction installation 18 and is arranged on to press down and regulates on the gear ring 9.These two gear rings link with two governor motions that reach housing 1 outside respectively, and the operation governor motion can make two gear rings along circumferentially rotating, and go up pressure sensitivity and should install 17 and press down the relative position of induction installation 18 and pointer 13 and change.The structure of governor motion comprises regulating shaft 8, is provided with intermeshing tooth at the outer peripheral face of regulating shaft 8 and gear ring, and regulating shaft 8 is rotatably supported on the mount pad 6, and the rotation of regulating shaft 8 can drive the rotation of gear ring.Governor motion also comprises adjustable column 16, and adjustable column 16 is plugged in the regulating shaft 8, and both maintenances are relatively circumferentially fixing.Between adjustable column 16 and regulating shaft 8 both mutually close ends, be provided with the helical teeth that cooperatively interacts, between adjustable column 16 and regulating shaft 8, be provided with the spring that acts on both.Adjustable column 16 extends to the position of front panel 15, owing to often do not use, the outer face of adjustable column 16 is generally a little less than the outer surface of front panel 15, owing to be provided with described helical teeth between adjustable column 16 and regulating shaft 8 both mutually close ends, and be provided with spring between the two, when pressing adjustable column 16, angle of relative deflection between adjustable column 16 and the regulating shaft 8, and the outer end that makes adjustable column 16 reaches the outside of front panel 15, and can adopt manual mode to rotate adjustable column 16 this moment.Press adjustable column 16 after adjustment finishes again downwards, the outer end of adjustable column 16 can be retracted into the inboard of front panel 15.
Last pressure is regulated gear ring 11 and is pressed down and regulates gear ring 9 and stack together at retainer plate 14, is convenient setting to control circuit, generally requires to go up pressure sensitivity and should install 17 with to press down induction installation 18 concordant on the yawing moment of pointer 13.For reaching this purpose, the described pressure sensitivity that goes up should install 17 and press down induction installation 18 and be connected in to press to regulate gear ring 11 and press down by two supporters with difference in height respectively and regulate on the gear ring 9, with guarantee pressure sensitivity should install 17 with press down induction installation 18 and be on the sustained height position.
Be clear and show that be provided with LED-backlit source plate 10 at the dorsal part of dial plate 12, the LED lamp on the LED-backlit source plate 10 is electrically connected with the control circuit on the control circuit board, the LED lamp generally is to be in normal bright state.
Claims (7)
1. induction type electronic pressure control switch, comprise the front panel and the housing that are linked together, control circuit board in the housing is installed on the mount pad, control circuit board is provided with relay, mount pad is provided with the pressure source joint, pressure source joint and Bourdon pressure gauge core link, be connected with pointer on the Bourdon pressure gauge core, the inboard of plate is respectively arranged with and presses down induction installation and last pressure sensitivity should be installed in front, between pointer and Bourdon pressure gauge core, be provided with dial plate, it is characterized in that: the outer end of pointer extend into and presses down radial position place that induction installation and last pressure sensitivity should be installed residing dial plate, outer end at pointer is provided with magnetic inductive block, should install and press down in last pressure sensitivity and be respectively equipped with coil in the induction installation, two coils be electrically connected with control circuit on the control circuit board by lead respectively.
2. by the described pressure control switch of claim 1, it is characterized in that: described upward pressure sensitivity should be installed and press down induction installation and is separately positioned on pressure adjusting gear ring and press down on the adjusting gear ring, these two gear rings link with two governor motions that reach hull outside respectively, under the effect of governor motion, gear ring is rotatable.
3. by the described pressure control switch of claim 2, it is characterized in that: described governor motion comprises regulating shaft, is respectively equipped with intermeshing tooth between the outer peripheral face of two regulating shaft outer peripheral faces and two gear rings.
4. by the described pressure control switch of claim 3, it is characterized in that: be provided with retainer plate in mount pad, two gear rings are socketed on the retainer plate coaxially.
5. by claim 3 or 4 described pressure control switch, it is characterized in that: described governor motion also comprises adjustable column, adjustable column is plugged in the regulating shaft, both are circumferentially fixing, be provided with some helical teeth that cooperatively interact between adjustable column and regulating shaft end, the two ends of adjustable column inner spring act on respectively on adjustable column and the regulating shaft.
6. by claim 1,2,3 or 4 described pressure control switch, it is characterized in that: described dial plate dorsal part is provided with the LED-backlit source plate, and the LED lamp on the LED-backlit source plate is electrically connected with control circuit.
7. by claim 1,2,3 or 4 described pressure control switch, it is characterized in that: described relay comprises main relay and the auxiliary relay that is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320139864 CN203135831U (en) | 2013-03-26 | 2013-03-26 | Induction type electronic control switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320139864 CN203135831U (en) | 2013-03-26 | 2013-03-26 | Induction type electronic control switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203135831U true CN203135831U (en) | 2013-08-14 |
Family
ID=48943768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320139864 Expired - Fee Related CN203135831U (en) | 2013-03-26 | 2013-03-26 | Induction type electronic control switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203135831U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788378A (en) * | 2016-12-23 | 2017-05-31 | 宁波方太厨具有限公司 | A kind of inductive switch knob |
-
2013
- 2013-03-26 CN CN 201320139864 patent/CN203135831U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788378A (en) * | 2016-12-23 | 2017-05-31 | 宁波方太厨具有限公司 | A kind of inductive switch knob |
| CN106788378B (en) * | 2016-12-23 | 2023-11-17 | 宁波方太厨具有限公司 | Induction type switch knob |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20150326 |
|
| EXPY | Termination of patent right or utility model |