CN207248498U - Pressure switch detection device - Google Patents
Pressure switch detection device Download PDFInfo
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- CN207248498U CN207248498U CN201720884130.5U CN201720884130U CN207248498U CN 207248498 U CN207248498 U CN 207248498U CN 201720884130 U CN201720884130 U CN 201720884130U CN 207248498 U CN207248498 U CN 207248498U
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- pressure
- solenoid valve
- input port
- conduit
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Abstract
The utility model discloses a kind of pressure switch detection device, including rack and pressure detection mechanism, the sealed volume for housing pressure switch to be checked is provided with the rack, the pressure detection mechanism includes the first solenoid valve and second solenoid valve, the input port for input air pressure is offered on the sealed volume, first solenoid valve is connected by the first conduit with input port, the second solenoid valve is connected by the second conduit with input port, the first switch for controlling the first conduit break-make is provided with first conduit, the second switch for controlling the second conduit break-make is provided with second conduit, relief valve is also associated with the sealed volume, air source box is set in the rack, first solenoid valve and second solenoid valve are connected by connecting tube with air source box respectively.Its is simple in structure, detection efficiency higher, while ensures the accuracy of detection.
Description
Technical field
The utility model belongs to detection device technical field, and especially whether one kind meets mark for pressure switch rated value
Accurate detection device.
Background technology
Pressure switch is a kind of pressure control device, when reaching rated value by measuring pressure, pressure switch send alarm or
Control signal, pressure switch can be widely applied in the fields such as oil, chemical industry, metallurgy, electric power, water supply to various gases, liquid
Gauge pressure, absolute pressure measurement control, be the preferable intelligent measurement and control instrument of industry spot.The production requirement precision of pressure switch
Height, while the pressure switch to producing needs to recheck, and the underproof product of rated value is rejected, existing detection is usual
Pressurizeed using the solenoid valve of a persistent pressure to pressure switch so that pressure switch reaches the threshold values for bearing pressure, i.e.,
Open circuit or closed circuit rated value, then the pressure value by manually being born to pressure switch carry out reading, judge whether to conform to
Ask, in this way due to pressure release when, solenoid valve numerical value disappears very fast, and worker is difficult to fast and accurately reading, be easy to cause
Careless omission, while worker needs reading enormous amount, mechanical work, be easy to cause visual fatigue, it is inclined reading occurs for a long time
Difference, easily so that substandard products leak through, and this detection mode takes longer, influences detection efficiency.
The content of the invention
In view of the deficiencies of the prior art, the utility model provides a kind of pressure switch detection device, its is simple in structure, detection
It is more efficient, while ensure the accuracy of detection.
The utility model provides a kind of pressure switch detection device, including rack and pressure detection mechanism, in the rack
The sealed volume for housing pressure switch to be checked is provided with, the pressure detection mechanism includes the first solenoid valve and the second electromagnetism
Valve, the input port for input air pressure is offered on the sealed volume, and first solenoid valve passes through the first conduit and input
Mouthful connection, the second solenoid valve be connected by the second conduit with input port, is provided with first conduit and is used for control the
The first switch of one conduit break-make, the second switch for controlling the second conduit break-make is provided with second conduit, described
Relief valve is also associated with sealed volume, air source box, first solenoid valve and second solenoid valve difference are set in the rack
It is connected by connecting tube with air source box.
The beneficial effect so set is：Using the above scheme, testing pressure switch is fixed in sealed volume, opened
Power switch is opened, the first solenoid valve is started to work, while opens first switch, keeps second switch to close, and the first solenoid valve leads to
To be checked pressure switch pressure of first conduit into sealed volume is crossed, the air pressure of the first solenoid valve setting is compared with the specified pressure of pressure switch
Power is smaller, if pressure switch is open in usual, is turned under the air pressure of the first solenoid valve, then the pressure switch rated pressure is set with
By mistake, it is substandard product, is off state under the air pressure of the first solenoid valve if the pressure switch is normally closed type, then the pressure
It is wrong to switch rated pressure setting, is substandard product, product is qualified under the air pressure of the first solenoid valve, then closes the first electromagnetism
Valve, while relief valve is opened, pressure release is carried out, then second solenoid valve is opened, first switch is closed, and second switch is opened, the second electricity
The setting pressure of magnet valve is larger compared with pressure switch rated pressure, if pressure switch is open in usual, under the air pressure of second solenoid valve
For conducting state, then pressure switch rated pressure setting is wrong, is substandard product, if pressure switch is normally closed type, the
It is off state under the air pressure of two solenoid valves, then pressure switch rated pressure setting is wrong, is substandard product, and twice detect
Jie passes through, then the pressure switch is qualified products, after opening relief valve pressure release, opens sealed volume, sealed volume is more after pressure release
Easily open, it is also safer, i.e., certain scope is set by the first solenoid valve and second solenoid valve, as long as the volume of pressure switch
Constant-pressure is fallen within the range, then it is qualified products that can assert the pressure switch, for different product requirements, the first electromagnetism
The pressure differential of valve and second solenoid valve can very greatly can also very little, realize the detection to different product requirement, this detection side
Formula can be controlled detection with setting program, i.e., control the first solenoid valve to open by microcontroller, and second solenoid valve is closed, and use
When microcontroller is controlled, first switch and second switch can be always maintained at opening, and two side valves are controlled by control chip
Road it is closed, then using being judged in the above described manner, the first step is unqualified, is carried by way of bright light or sound
Wake up, to remind rejecting defect ware, the first step is qualified, then closes the first solenoid valve, after completing pressure discharge operations, opens the second electromagnetism
Valve, judges to set according to aforesaid way, same unqualified, is reminded by way of bright light or sound, to remind rejecting residual
Substandard products, it is qualified then interrupt electromagnetic valve work, after completing pressure discharge operations, sealed volume is opened, for taking out product, is put into next
Pressure switch to be checked, this detection mode is convenient and efficient, while detection is more accurate, and certain this detection mode can also adopt
The manually mode of open and close solenoid valve and switch successively, can use when something goes wrong in microcontroller or control chip
Artificial mode, switchs first switch and second switch, ensures the closing of working line, accurate when ensureing manual operation
Property, while first switch and second switch can detect the closed of electromagnetic valve pipeline when equipment detects, and further improve equipment
Stability and reliability so that the equipment is using having more preferable adaptability, while the equipment operation is simple, also allows for worker
Study use is carried out, while avoids worker and carries out reading when detecting, further increases the detection accuracy of equipment.
It is respectively the first input port and the second input port that the utility model, which is further arranged to the input port, and described first
Input port and the second input port are separately positioned on sealed volume both sides, and first conduit is connected with the first input port, and described
Two conduits are connected with the second input port.
The beneficial effect so set is：Using the above scheme, air pressure input is carried out using different input ports, avoided
Remaining airflow influence subsequent operation in conduit, causes solenoid valve numerical value inaccurate, influences accuracy rate, further increase equipment
Reliability.
The utility model, which is further arranged to the connecting tube, includes the first connecting tube and the second connecting tube, first electricity
Magnet valve is connected by the first connecting tube with air source box, and the first pressure reducing valve, second electromagnetism are provided with first connecting tube
Valve is connected by the second connecting tube with air source box, and the second pressure reducing valve is provided with second connecting tube.
The beneficial effect so set is：Using the above scheme, pressure reducing valve is set in connecting tube, and pressure reducing valve here is
Regulating valve, the pressure that can be inputted to air source box are accurately regulated and controled, and output pressure is adjusted to the output of the first solenoid valve
Numerical value and the numerical value of second solenoid valve output, while keep numerical stability accurate, further improve the accuracy of detection.
The utility model is further arranged to be additionally provided with first connecting tube for showing the first solenoid valve air pressure
The first pressure gauge of numerical value, the second pressure for showing second solenoid valve air pressure numerical value is additionally provided with second connecting tube
Table.
The beneficial effect so set is：Using the above scheme, pressure gauge is set so that solenoid valve pressure value can be shown
Show, easy to the adjusting of pressure value, while when deviation occurs in solenoid valve input numerical value, user can have found in time, improve
The reliability of equipment.
The utility model, which is further arranged to the sealed volume, includes accommodating cavity and for compressing pressure switch to be checked
Compression cylinder, first input port and the second input port are all disposed within accommodating cavity side wall, and the accommodating cavity connects with relief valve
It is logical.
The beneficial effect so set is：Using the above scheme, ensure that pressure switch to be checked can be fixed in accommodating cavity,
The air-tightness for ensureing accommodating cavity is compressed by compression cylinder at the same time so that pressure switch will not be revealed when air pressure blasts, into one
Step can set the work of power switch Synchronization Control compression cylinder, i.e. compression cylinder completes the closed rear unlatching electricity to accommodating cavity
The control circuit of magnet valve, improves the work efficiency of equipment, simplifies workflow.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model embodiment.
Embodiment
As seen from Figure 1, the utility model discloses a kind of pressure switch detection device, including rack 1 and pressure inspection
Mechanism is surveyed, the sealed volume for housing pressure switch to be checked is provided with the rack 1, the sealed volume includes accommodating cavity
21 and for compressing the compression cylinder 22 of pressure switch to be checked, the pressure detection mechanism includes the first solenoid valve 31 and the second electricity
Magnet valve 32, offers the input port for input air pressure on the accommodating cavity 21, the input port be respectively the first input port and
Second input port, first input port and the second input port are separately positioned on 21 both sides of accommodating cavity, first solenoid valve 31
It is connected by the first conduit 311 with the first input port, the second solenoid valve 32 is connected by the second conduit 321 and the second input port
Connect, the first switch 315 for controlling 311 break-make of the first conduit, second conduit are provided with first conduit 311
The second switch 325 for controlling 321 break-make of the second conduit is provided with 321, relief valve is also associated with the accommodating cavity 21
23, air source box is set in the rack 1, first solenoid valve 31 is connected by the first connecting tube 313 with air source box, and described the
The first pressure reducing valve 314 is provided with one connecting tube 313, the second solenoid valve 32 is connected by the second connecting tube 323 with air source box
Connect, the second pressure reducing valve 324 is provided with second connecting tube 323, be additionally provided with first connecting tube 313 for showing
The first pressure gauge 312 of first solenoid valve, 31 air pressure numerical value, is additionally provided with second connecting tube 323 for showing the second electricity
The second pressure gauge 322 of 32 air pressure numerical value of magnet valve.
The above embodiments are only the preferred embodiment of the utility model, it is impossible to the right of the utility model is limited with this
Scope, therefore, the equivalent variations made according to present utility model application the scope of the claims, such as using similar technique, similar structures
Equivalent product still belongs to the scope that the utility model is covered.
Claims (5)
- A kind of 1. pressure switch detection device, it is characterised in that：Including rack and pressure detection mechanism, it is provided with the rack For housing the sealed volume of pressure switch to be checked, the pressure detection mechanism includes the first solenoid valve and second solenoid valve, institute The input port offered on sealed volume for input air pressure is stated, first solenoid valve is connected by the first conduit and input port Connect, the second solenoid valve is connected by the second conduit with input port, is provided with first conduit for controlling first to lead The first switch of pipe break-make, the second switch for controlling the second conduit break-make, the sealing are provided with second conduit Relief valve is also associated with cavity volume, air source box is set in the rack, first solenoid valve and second solenoid valve pass through respectively Connecting tube is connected with air source box.
- 2. pressure switch detection device according to claim 1, it is characterised in that：The input port is respectively the first input Mouth and the second input port, first input port and the second input port are separately positioned on sealed volume both sides, first conduit It is connected with the first input port, second conduit is connected with the second input port.
- 3. pressure switch detection device according to claim 1 or 2, it is characterised in that：The connecting tube includes first and connects Adapter and the second connecting tube, first solenoid valve are connected with air source box by the first connecting tube, are set in first connecting tube The first pressure reducing valve is equipped with, the second solenoid valve is connected by the second connecting tube with air source box, is set in second connecting tube There is the second pressure reducing valve.
- 4. pressure switch detection device according to claim 3, it is characterised in that：It is additionally provided with first connecting tube For showing the first pressure gauge of the first solenoid valve air pressure numerical value, it is additionally provided with second connecting tube for showing the second electricity The second pressure gauge of magnet valve air pressure numerical value.
- 5. pressure switch detection device according to claim 2, it is characterised in that：The sealed volume include accommodating cavity and For compressing the compression cylinder of pressure switch to be checked, first input port and the second input port are all disposed within accommodating cavity side wall On, the accommodating cavity is connected with relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720884130.5U CN207248498U (en) | 2017-07-20 | 2017-07-20 | Pressure switch detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720884130.5U CN207248498U (en) | 2017-07-20 | 2017-07-20 | Pressure switch detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207248498U true CN207248498U (en) | 2018-04-17 |
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ID=61877815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720884130.5U Active CN207248498U (en) | 2017-07-20 | 2017-07-20 | Pressure switch detection device |
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| Country | Link |
|---|---|
| CN (1) | CN207248498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271172A (en) * | 2017-07-20 | 2017-10-20 | 浙江正泰汽车科技有限公司 | Pressure switch detection device and its detection method |
-
2017
- 2017-07-20 CN CN201720884130.5U patent/CN207248498U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271172A (en) * | 2017-07-20 | 2017-10-20 | 浙江正泰汽车科技有限公司 | Pressure switch detection device and its detection method |
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