CN208873661U - A kind of pressure-regulating device of pressure switch - Google Patents
A kind of pressure-regulating device of pressure switch Download PDFInfo
- Publication number
- CN208873661U CN208873661U CN201821287134.6U CN201821287134U CN208873661U CN 208873661 U CN208873661 U CN 208873661U CN 201821287134 U CN201821287134 U CN 201821287134U CN 208873661 U CN208873661 U CN 208873661U
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- Prior art keywords
- pressure
- pressure switch
- pedestal
- cavity
- regulating device
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- Measuring Fluid Pressure (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
A kind of pressure-regulating device of pressure switch, pressure switch bodies top is equipped with threaded hole, pressure switch body interior is equipped with cavity, elastic component is successively arranged in cavity from top to bottom, microswitch and mandril, pressure switch bodies top is equipped with pressure adjustment knob, pressure adjustment knob is cylindrical body, the external cylindrical surface of pressure adjustment knob is equipped with external screw thread, threaded hole and external screw thread cooperate, pressure switch body bottom portion is equipped with lower cover, lower lid is equipped with air inlet, air inlet and cavity connection, diaphragm is equipped between pressure switch body bottom portion and lower cover, pressure switch ontology is equipped with pressure-detecting device.The beneficial effects of the utility model are: structure is simple, it is easy to operate, pass through the cooperation of the internal screw thread at the top of the external screw thread and pressure switch of pressure adjustment knob, to change the size of cavity volume, to adjust the size of triggering pressure, the use condition for meeting various working, has a wide range of application, practical.
Description
Technical field
The utility model belongs to frame for movement technical field, adjusts dress more particularly, to a kind of pressure of pressure switch
It sets.
Background technique
Pressure switch be in hydraulic system when Fluid pressure reaches predetermined value, make electric contact act element.Pressure
Relay also may be defined as converting pressure into the hydraulic component of electric signal, and client is led to according to itself pressure design needs
Pressure switch is overregulated, realizes in the pressure of a certain setting, exports the function of an electric signal.
Pressure switch is the hydra-electric conversion element that electrical contact is opened and closed using the pressure of liquid.Work as system pressure
When reaching the setting of pressure switch, electric signal is issued, electrical component (such as electromagnet, motor, the time relay, electromagnetism are made
Clutch etc.) movement, make oil circuit release, commutation, executive component realizes sequentially-operating, or closing motor makes system stop work
Make, plays safeguard protection etc..
Existing pressure switch is mostly plunger type, when the liquid pressure that plunger type pressure switch lower end oil inlet enters
When power reaches set pressure value, plunger is pushed to move up, this displacement is by pushing microswitch movement after lever amplification, to change bullet
The decrement of spring carrys out the operating pressure of regulating relay with this.Often volume is excessive for existing plunger type pressure switch, structure
More it is responsible for, pressure regulation process is cumbersome.And the pressure-regulating device of existing pressure switch, do not have pressure detecting dress mostly
It sets.Part has the pressure-regulating device of the pressure switch of pressure-detecting device, and currently used pressure switch movement is special
Property detection device mainly using existing Buchholz relay calibration equipment carry out, i.e., tested using oil pressure, in test process
It unavoidably causes transformer oil to pollute environment, exists simultaneously that working efficiency is low, testing cost is high, inconvenient etc. obvious lacks
Point.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of pressure-regulating device；Especially structure is simple, has pressure
The pressure-regulating device of detection device and a kind of pressure regulation spectrum is big, regulating effect is good pressure switch.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of pressure tune of pressure switch
Regulating device, including pressure switch ontology, the pressure switch bodies top are equipped with threaded hole, the pressure switch ontology
Inside is equipped with cavity, the threaded hole and the cavity connection, is successively arranged elastic component from top to bottom in the cavity, fine motion is opened
It closes and mandril, the pressure switch bodies top is equipped with pressure-regulating device, the pressure-regulating device includes that pressure is adjusted
Knob, the pressure adjustment knob are cylindrical body, and the external cylindrical surface of the pressure adjustment knob is equipped with external screw thread, the screw thread
Hole and the external screw thread cooperate, and the pressure switch body bottom portion is equipped with lower cover, and the lower lid is equipped with air inlet, it is described into
Stomata and the cavity connection are equipped with diaphragm, the elastic component one between the pressure switch body bottom portion and the lower cover
End connects the pressure adjustment knob, and the elastic component other end connects described microswitch one end, and the microswitch is another
End connects described mandril one end, and the mandril other end connects the diaphragm, and the pressure switch ontology is equipped with pressure detecting
Device.
Further, the pressure-detecting device includes gas storage device, gas-detecting device and data acquisition device,
The gas storage device passes through the pipeline difference gas-detecting device in parallel and the pressure switch ontology, the gas
The detection device series connection data acquisition device.
Further, the microswitch includes pedestal and cross bar, the rectangular triangle in pedestal section, the pedestal
Right-angle surface is connect with the cavity inside on one side, and pedestal another side right angle and the cavity inside are vertically arranged in top, institute
Crossbar end is stated equipped with corner cut, the cross bar lower part is acute angle, and the cross bar top is obtuse angle, the inclined-plane of the corner cut with it is described
The inclined-plane of pedestal is parallel.
Further, support is equipped among the cross bar, the holder top is equipped with positive stop lug boss, and the rest base is set
There is limiting groove, the elastic component is reset spring, and the pressure adjustment knob bottom is equipped with groove, described reset spring one end
It is placed in the groove, the reset spring other end is placed in the positive stop lug boss.
Further, the pedestal is multiple, and the pedestal is evenly distributed on the cavity inner wall, the cross bar quantity
Identical as the pedestal, the cross bar is distributed in pairs with the pedestal.
Further, described mandril one end is placed in the limiting groove, mandril other end bottom surface and the diaphragm
Upper surface contact.
Further, the pressure adjustment knob outer surface is equipped with rubbing device.
Further, the pressure switch body surface is equipped with rain cover.
Further, the gas storage device is air accumulator, and the gas-detecting device is solenoid valve, and the data are adopted
Acquisition means include pressure sensor and microprocessor, and the microprocessor connects the pressure sensor.
Further, the rain cover is successively arranged rubber layer, steel plate and silicon rubber water-repellent layer from the inside to the outside.
The utility model has the advantages and positive effects of:
1, the utility model structure is simple, easy to operate, and pressure adjustment knob is equipped at the top of pressure switch, passes through pressure
The cooperation of the external screw thread and the internal screw thread at the top of pressure switch of adjusting knob passes through change to change the size of cavity volume
The size of cavity volume meets the use condition of various working, has a wide range of application to adjust the size of triggering pressure, practicability
By force.
2, the utility model by setting pressure-detecting device, solve in conventional procedure, using oil pressure cracking pressure after
When electric appliance, there is the problem of permeability phenomenon and oil leakage phenomenon, meanwhile, pressure is opened using oil pressure using air pressure opened pressure switch ratio
Power relay reduces the use of oil, reduces testing cost.And structure is simple, and operator is easy to use, improves work
Make efficiency.
3, rain cover is equipped at the top of the utility model, rain cover is simple and compact for structure, aesthetic in appearance, small volume and less weight, processing
It is easily manufactured, it is easily installed, waterproof and dampproof protective effect is played to pressure switch, while increasing airtight in cavity
Property, improve the performance of pressure switch.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model embodiment
Fig. 2 is the microswitch schematic diagram of the utility model embodiment
Fig. 3 is the pressure-detecting device schematic diagram of the utility model embodiment
Fig. 4 is the structure chart of the rain cover of the utility model embodiment
Fig. 5 is the utility model embodiment pressure-detecting device circuit diagram
Fig. 6 is the data acquisition circuit figure of the utility model embodiment pressure sensor
In figure:
1, rubbing device 2, pressure adjustment knob 3, rain cover
4, elastic component 5, pressure switch ontology 6, mandril
7, lower cover 8, diaphragm 9, support
10, pedestal 11, cavity 12, cross bar
13, gas storage device 14, gas-detecting device 15, data acquisition device
16, rubber layer 17, steel plate 18, silicon rubber water-repellent layer
Specific embodiment
The utility model embodiment is described further with reference to the accompanying drawing:
As shown in Figure 1, a kind of pressure-regulating device of pressure switch, including pressure switch ontology 5.Pressure switch
It is equipped with threaded hole at the top of ontology 5, is equipped with cavity 11, threaded hole and 11 connection of cavity inside pressure switch ontology 5.In cavity 11
It is successively arranged elastic component 4, microswitch and mandril 6 from top to bottom.Pressure-regulating device is equipped at the top of pressure switch ontology 5,
Pressure-regulating device includes pressure adjustment knob 2, and 2 outer surface of pressure adjustment knob is equipped with rubbing device 1.Rubbing device 1 is to increase
The device of plus-pressure adjusting knob 2 and frictional force when human body manual rotary operation, can be decorative pattern, the devices such as rubber layer,
It can be the devices such as turntable.
Pressure adjustment knob 2 is cylindrical body, and the external cylindrical surface of pressure adjustment knob 2 is equipped with external screw thread, threaded hole and outer
It is threadedly engaged, 5 bottom of pressure switch ontology is equipped with lower cover 7, and lower cover 7 is equipped with air inlet, air inlet and 11 connection of cavity, pressure
Diaphragm 8 is equipped between 5 bottom of power relay ontology and lower cover 7,4 one end of elastic component connects pressure adjustment knob 2, and elastic component is another
End connection microswitch one end, the microswitch other end connect 6 one end of mandril, and 6 other end of mandril connects diaphragm 8, pressure relay
Device ontology 5 is equipped with pressure-detecting device.
Microswitch includes pedestal 10 and cross bar 12, the rectangular triangle in 10 section of pedestal, 10 one side right-angle surface of pedestal with
It is connected inside cavity 11,10 another side right angle of pedestal and 11 internal vertical of cavity are placed in top, and 12 end of cross bar is equipped with corner cut, horizontal
12 lower part of bar is acute angle, and 12 top of cross bar is obtuse angle, and the inclined-plane of corner cut is parallel with the inclined-plane of pedestal 10.10 section of pedestal can also be with
For shapes such as right-angled trapeziums.
It is equipped with support 9 among cross bar 12, positive stop lug boss is equipped at the top of support 9,9 bottom of support is equipped with limiting groove, elasticity
Part 4 is reset spring, and 2 bottom of pressure adjustment knob is equipped with groove, and reset spring one end is placed in groove, the reset spring other end
It is placed in positive stop lug boss.6 one end of mandril is placed in limiting groove, and 6 other end bottom surface of mandril is contacted with 8 upper surface of diaphragm.
As shown in Fig. 2, pedestal 11 be it is multiple, pedestal 11 is evenly distributed on 10 inner wall of cavity, 12 quantity of cross bar and pedestal
11 quantity are identical, and cross bar 12 and pedestal 11 are distributed in pairs.
As shown in figure 3, pressure-detecting device includes gas storage device 13, gas-detecting device 14 and data acquisition device
15, gas storage device 13 passes through pipeline difference gas-detecting device 14 in parallel and pressure switch ontology 5, gas-detecting device
14 tandem data acquisition devices 15.Gas storage device 13 is air accumulator, and gas-detecting device 14 is solenoid valve, data acquisition
Device 15 includes pressure sensor and microprocessor, and microprocessor connects pressure sensor.
5 surface of pressure switch ontology is equipped with rain cover 3.As shown in figure 4, rain cover 3 is in cylindrical body, the top of rain cover 3
Portion is equipped with groove body；Groove body is in circular cone shape.Rain cover 3 is answering for rubber layer 16, steel plate 17 and the composition of silicon rubber water-repellent layer 18
Close structure；Rubber layer 16, steel plate 17 and silicon rubber water-repellent layer 18 are set gradually from the inside to the outside；The inner groove surface of groove body is provided with fourth
Base rubber weather strip, butyl rubber sealing strip surface are provided with groove, and groove body edge is located on rain cover 3 partially protrudes into butyl
In the groove of rubber weather strip.
The outer dimension of rain cover 3 and the size of groove body are mutually agreed with pressure switch ontology 5, compact-sized, outside
Type is beautiful, and small volume and less weight, convenient processing and manufacture is easily installed, and plays waterproof and dampproof wet protection to pressure switch ontology 5 and makees
With, while the air-tightness in cavity 10 is increased, improve the performance of pressure switch.
The course of work of the present embodiment is as follows:
As shown in figure 5, solenoid valve and detected pressure switch ontology 5 are connected in series to 220V power supply with conducting wire, open
Solenoid valve controller to air accumulator provide gas, open connection solenoid valve solenoid valve control case, pressure switch ontology 5 by
Gas pressure is detected pressure switch ontology 5 and acts, circuit power loss, electromagnetism valve events are beaten at this time when pressure reaches certain value
Open, then air-flow from diversion pipe spray, by the detection of pressure sensor, signal is transmitted to microprocessor, complete a pressure after
The detection for starting work of electric appliance.
The working principle of pressure switch is as follows:
Pressure adjustment knob 2 is transferred to demand position, when system pressure reaches the set pressure of pressure switch ontology 5
When, diaphragm 8 raises upward under the effect of the pressure, and raised diaphragm 8 pushes mandril 6 to move upwards, mandril 6 push support 9 to
Upper movement, support 9 drive cross bar 12 to move upwards, and microswitch are triggered, to externally issue switching signal.When system pressure subtracts
Hour, the elastic force of reset spring upwards pressure greater than what diaphragm 8 was subject to, and mandril 6 moves downward under the action of reset spring,
Microswitch is caused to switch, to externally issue switching signal.
When needing to change the set pressure of pressure switch ontology 5, it is only necessary to screw pressure adjustment knob 2, make to reset bullet
Spring further compresses, and mandril 6 is increased by downward active force at this time, only increases accordingly system pressure, make its to diaphragm 8 to
On active force be greater than the downward active force of reset spring and could trigger microswitch, that is, realize the purpose for improving set pressure.
When needing to turn down set pressure, vice versa.
Pressure sensor is used as the sensing element of acquisition system by the utility model.Once pressure is more than the preset lowest limit,
Pressure sensor will issue signal.The circuit diagram of data acquisition is as shown in fig. 6, A/D conversion circuit uses common chip
ADC0809, chip ADC0809 are the controller based on microprocessor, and the output of pressure sensor terminates to the IN0 of ADC0809.
Channel selecting the address A, B, C of ADC0809 is respectively by P0.0~P0.2 of 89C51 through address latch 74ls373 as shown in Figure 6
Output provides.As P2.7=0, ADC0809 is gated jointly with write signal WR.Ale signal connects together with ST signal in Fig. 6,
In the forward position writing address signal of WR signal, behind along starting conversion.For example, when output address be 7FF8H can gate it is logical
Road IN0 realizes that the analog quantity exported to pressure sensor is converted.The conversion end status signal EOC of ADC0809 in Fig. 6
It is connected to the INT1 pin of 89C51, after A/D is converted, EOC becomes high level, indicates conversion end, generates interruption.In
In disconnected service routine, the data converted are sent to specified storage unit.
Utility model has the advantages and positive effects of:
1, the utility model structure is simple, easy to operate, and pressure adjustment knob is equipped at the top of pressure switch, passes through pressure
The cooperation of the external screw thread and the internal screw thread at the top of pressure switch of adjusting knob passes through change to change the size of cavity volume
The size of cavity volume meets the use condition of various working, has a wide range of application to adjust the size of triggering pressure, practicability
By force.
2, the utility model by setting pressure-detecting device, solve in conventional procedure, using oil pressure cracking pressure after
When electric appliance, there is the problem of permeability phenomenon and oil leakage phenomenon, meanwhile, pressure is opened using oil pressure using air pressure opened pressure switch ratio
Power relay reduces the use of oil, reduces testing cost.And structure is simple, and operator is easy to use, improves work
Make efficiency.
3, rain cover is equipped at the top of the utility model, rain cover is simple and compact for structure, aesthetic in appearance, small volume and less weight, processing
It is easily manufactured, it is easily installed, waterproof and dampproof protective effect is played to pressure switch, while increasing airtight in cavity
Property, improve the performance of pressure switch.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should still belong within the patent covering scope of the utility model.
Claims (10)
1. a kind of pressure-regulating device of pressure switch, including pressure switch ontology, it is characterised in that: the pressure relay
Device bodies top is equipped with threaded hole, and the pressure switch body interior is equipped with cavity, the threaded hole and the cavity connection,
Elastic component, microswitch and mandril are successively arranged in the cavity from top to bottom, the pressure switch bodies top is equipped with pressure
Apparatus for adjusting force, the pressure-regulating device include pressure adjustment knob, and the pressure adjustment knob is cylindrical body, the pressure
The external cylindrical surface of adjusting knob is equipped with external screw thread, and the threaded hole and the external screw thread cooperate, the pressure switch ontology
Bottom is equipped with lower cover, and the lower lid is equipped with air inlet, the air inlet and the cavity connection, the pressure switch ontology
Diaphragm is equipped between bottom and the lower cover, described elastic component one end connects the pressure adjustment knob, and the elastic component is another
End connects described microswitch one end, and the microswitch other end connects described mandril one end, the mandril other end connection
The diaphragm, the pressure switch ontology are equipped with pressure-detecting device.
2. a kind of pressure-regulating device of pressure switch according to claim 1, it is characterised in that: the pressure detecting
Device includes gas storage device, gas-detecting device and data acquisition device, and the gas storage device is distinguished by pipeline
The gas-detecting device in parallel and the pressure switch ontology, the gas-detecting device series connection data acquisition dress
It sets.
3. a kind of pressure-regulating device of pressure switch according to claim 1 or 2, it is characterised in that: the fine motion
Switch includes pedestal and cross bar, the rectangular triangle in pedestal section, the pedestal one side right-angle surface and the cavity inside
Connection, pedestal another side right angle and the cavity inside are vertically arranged in top, and the crossbar end is equipped with corner cut, the cross
Bar lower part is acute angle, and the cross bar top is obtuse angle, and the inclined-plane of the corner cut is parallel with the inclined-plane of the pedestal.
4. a kind of pressure-regulating device of pressure switch according to claim 3, it is characterised in that: among the cross bar
Equipped with support, the holder top is equipped with positive stop lug boss, and the rest base is equipped with limiting groove, and the elastic component is to reset bullet
Spring, the pressure adjustment knob bottom are equipped with groove, and described reset spring one end is placed in the groove, and the reset spring is another
One end is placed in the positive stop lug boss.
5. a kind of pressure-regulating device of pressure switch according to claim 3, it is characterised in that: the pedestal is more
A, the pedestal is evenly distributed on the cavity inner wall, and the cross bar quantity is identical as the pedestal, the cross bar with it is described
Pedestal is distributed in pairs.
6. a kind of pressure-regulating device of pressure switch according to claim 4, it is characterised in that: described mandril one end
It is placed in the limiting groove, mandril other end bottom surface is contacted with the diaphragm upper surface.
7. a kind of pressure-regulating device of pressure switch according to claim 1 or 2, it is characterised in that: the pressure
Adjusting knob outer surface is equipped with rubbing device.
8. a kind of pressure-regulating device of pressure switch according to claim 1 or 2, it is characterised in that: the pressure
Relay body surface is equipped with rain cover.
9. a kind of pressure-regulating device of pressure switch according to claim 2, it is characterised in that: the gas storage
Device is air accumulator, and the gas-detecting device is solenoid valve, and the data acquisition device includes pressure sensor and micro process
Device, the microprocessor connect the pressure sensor.
10. a kind of pressure-regulating device of pressure switch according to claim 8, it is characterised in that: the rain cover
It is successively arranged rubber layer, steel plate and silicon rubber water-repellent layer from the inside to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821287134.6U CN208873661U (en) | 2018-08-09 | 2018-08-09 | A kind of pressure-regulating device of pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821287134.6U CN208873661U (en) | 2018-08-09 | 2018-08-09 | A kind of pressure-regulating device of pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208873661U true CN208873661U (en) | 2019-05-17 |
Family
ID=66464409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821287134.6U Expired - Fee Related CN208873661U (en) | 2018-08-09 | 2018-08-09 | A kind of pressure-regulating device of pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208873661U (en) |
-
2018
- 2018-08-09 CN CN201821287134.6U patent/CN208873661U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 Termination date: 20190809 |
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| CF01 | Termination of patent right due to non-payment of annual fee |