CN109765046A - A kind of pressure switch detection device and method of calibration - Google Patents
A kind of pressure switch detection device and method of calibration Download PDFInfo
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- CN109765046A CN109765046A CN201910192957.3A CN201910192957A CN109765046A CN 109765046 A CN109765046 A CN 109765046A CN 201910192957 A CN201910192957 A CN 201910192957A CN 109765046 A CN109765046 A CN 109765046A
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- pressure switch
- detection device
- line detector
- display unit
- detection
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Abstract
A kind of pressure switch detection device, for detecting the upper limit value and lower limit value of pressure switch, the pressure switch includes the input terminal and output end being connected with air-source, the pressure switch detection device includes: pressure switch setting device, the pressure switch setting device can with the output end communication connection of pressure switch and the pressure signal of pressure switch can be responded；For the attachment device of data signal transmission, the attachment device includes the first connecting pin and second connection end, the output end connection of first connecting pin and pressure switch, the second connection end and the pressure switch setting device communication connection.The present invention takes the lead in proposing the detection device for detecting the pressure switch of the braking system of train system, and to the method for calibration that pressure switch is detected.The detection efficiency detected to pressure switch can be improved by special detection device and its detection method.
Description
Technical field
The present invention relates to rail truck compressed air control technology field, especially a kind of pressure switch detection device and its
Detection method.
Background technique
In train system, braking system be train system in key subsystem, the quality of braking system performance and its
Stability directly affects the general safety performance of train.Compressed air is generallyd use in braking system at present to go forward side by side as power
Row work, then being also the key point of braking system to the accurate control of compressed air.It is to be opened by pressure on train at present
Pass is monitored to main air hose and train pipe and feeds back drivers' cab, but pressure switch belongs to gas-electric converter, with the time
Transfer, access times are excessive, and the calibration value, that is, upper limit value and lower limit value of pressure switch will appear offset.Therefore, in order to guarantee to press
The upper limit value and lower limit value of power switch are accurate, and ensure pressure switch to the accurate judgement of true pressure, it is common, can be to pressure
The calibration value of switch is verified.
But in existing method of calibration it is usually that the contact for allowing engineer to detect pressure switch manually judges, and
Professional specific aim tool does not carry out rapid verification, so that test effect is inaccurate, efficiency is also relatively slow；And it was verifying
It is more to need to monitor pressure value variation, the adjustment of pressure switch on state, pressure value, multimeter detection state etc. in journey simultaneously
A signal, it is also desirable to which at least two people complete, larger to the occupancy of human resources；Finally, due to the knot at pressure switch
Structure is more compact, therefore working space is narrow, therefore monitors and adjust also restrained, and the unreliable connection between node also can
Strong influence is to workload.
Summary of the invention
To solve the above-mentioned problems, the invention proposes a kind of pressure switch detection devices, for detecting pressure switch
Upper limit value and lower limit value, the pressure switch include the input terminal and output end being connected with air-source, the pressure switch inspection
Measurement equipment includes: pressure switch setting device, and the pressure switch setting device can be with the output end communication connection of pressure switch
And the pressure signal of pressure switch can be responded；For the attachment device of data signal transmission, the attachment device packet
Include the first connecting pin and second connection end, the output end connection of first connecting pin and pressure switch, the second connection end
With the pressure switch setting device communication connection.
As a further improvement of the present invention, the pressure switch setting device includes line detector, described wired
The second connection end of detection device and the attachment device plugs, and receives the pressure signal of pressure switch and show detection knot
Fruit.
As a further improvement of the present invention, the pressure switch setting device includes line detector and radio detection
The second connection end of device, the wireless detection device and the attachment device plugs and passes through wirelessly with there is line detector
Signal communication connection, the wireless detection device receives pressure signal and output test result is to there is line detector.
It is as a further improvement of the present invention, described that have line detector include to show that the peak value of testing result is shown
Portion and valley display unit.
It is as a further improvement of the present invention, described that have line detector further include switching switch, switching switch use
In making described there is line detector to switch between wired working condition and wireless working condition.
As a further improvement of the present invention, described to there is line detector to further include buzzer, bypass the buzzer
By-pass switch and cut off buzzer sound silence switch.
To solve the above-mentioned problems, the invention proposes a kind of method of calibration of pressure switch, which passes through sky
Gas source verifies the upper limit value and lower limit value of pressure switch, is provided on the air-source to show the defeated of pneumatics numerical value
Enter display unit, the method for calibration includes: the input terminal and air-source for being connected to pressure switch；The output of communication connection pressure switch
First connecting pin of the attachment device for data signal transmission of end and pressure switch detection device described above；Communication connection
The second connection end of the attachment device and the pressure switch setting device；The work of control air-source is simultaneously defeated into pressure switch
Enter air, real-time display pneumatics numerical value on the input display unit of air-source；Air-source is adjusted so that pressure switch setting device
It is upper to show that testing result, the testing result include frontal state and negative state respectively；If being shown on pressure switch setting device
When showing the frontal state of testing result, and input on display unit the pneumatics numerical value that shows respectively in the margin of tolerance of upper limit value or
In the margin of tolerance of lower limit value, then judge that the upper limit or lower limit of pressure switch is accurate.
As a further improvement of the present invention, the pressure switch setting device includes line detector, the verification
Method includes wired detection pattern, in wired detection pattern, the second connection end of the attachment device and wired detection
Device plugs.
As a further improvement of the present invention, the pressure switch setting device includes line detector and radio detection
Device, the method for calibration includes radio detection mode, in radio detection mode, the second connection end of the attachment device with
The wireless detection device plugs, wireless detection device with have line detector and connected by wireless signal communication.
It is as a further improvement of the present invention, described that have line detector further include buzzer, peak value display unit or valley
When display unit is in running order, buzzer is optionally in work or off position.
Beneficial effects of the present invention: the present invention takes the lead in proposing and examine to the pressure switch of the braking system of train system
The detection device of survey, and to the method for calibration that pressure switch is detected.Pass through special detection device and its detection method
The detection efficiency detected to pressure switch can be improved.
Detailed description of the invention
Fig. 1 is the concrete structure schematic diagram for having line detector；
Fig. 2 is the flow chart of method of calibration；
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
In addition, duplicate label or mark may be used in various embodiments.These are repeated only for simple clear
The ground narration present invention, not representing has any relevance between the different embodiments or structure discussed.
The invention discloses a kind of pressure switch detection devices, are used for rail truck compressed air control technology field.It should
Pressure switch is used for the braking system of rail truck, and the pressure switch detection device in the present invention is to detect the pressure switch
Upper limit value and lower limit value, to confirm that pressure switch is in normal operating conditions, and whether and it is accurate to the judgement of pneumatics
Accurately.The pressure switch includes the input terminal and output end being connected with air-source.
Specifically, the pressure switch detection device includes:
Pressure switch setting device, the pressure switch setting device can be with the output end communication connections and energy of pressure switch
It is enough that the pressure signal of pressure switch is responded；
For the attachment device of data signal transmission, the attachment device includes the first connecting pin and second connection end, institute
The output end for stating the first connecting pin and pressure switch connects, and the second connection end and pressure switch setting device communication connect
It connects.
To, the present invention takes the lead in proposing a kind of pressure switch detection device to verify air pressure, and
And be connected by attachment device with pressure switch and pressure switch can be debugged, improve the verification effect of pressure switch
Rate.It is detected by the pressure switch detection device of standard, and instead of not set of detection device before, it can be significantly
Improve working efficiency.
In the present embodiment, the attachment device uses pressure switch standard plug, to be connected by attachment device
Pressure switch and pressure switch setting device can thoroughly solve caused fault and repetitive operation during connecting detection.Institute
It states attachment device to transmit to signal, certainly, if the pressure switch setting device itself is not provided with power supply, can also pass through
Attachment device transmits electric energy.
The pressure switch setting device includes line detector, described to have line detector and the attachment device
Second connection end plugs, and receives the pressure signal of pressure switch and show testing result.The pressure switch setting device
Can also include wireless detection device, the second connection end of the wireless detection device and the attachment device plug and with have
Line detector is connected by wireless signal communication, and the wireless detection device receives pressure signal and output test result is to having
Line detector.Therefore, there are two types of operating modes for the pressure switch detection device tool, the first is wired detection pattern, the
Two kinds are radio detection mode, but are required in wired detection pattern and radio detection mode using there is line detector.
Specifically, when for wired detection pattern, the second connection end for having line detector Yu the attachment device
Plug, that is, refer to described in there is line detector to be directly mutually inserted with the attachment device, so that attachment device is directly to wired
Detection device transmits pressure signal, has line detector to receive pressure signal and shows testing result.
Correspondingly, the pressure switch setting device of the pressure switch detection device also wraps when for radio detection mode
Wireless detection device is included, the wireless detection device and the second connection end of the attachment device plug, that is, refer to radio detection
Device is directly mutually inserted with the attachment device, and wireless detection device has line detector logical by wireless signal with described
News connection, the wireless detection device receives pressure signal and output test result is to there is line detector.In this specific implementation
It is described to have between line detector and wireless detection device through bluetooth communication connection in mode.
It is described that have line detector include the peak value display unit 11 and valley display unit 12 to show testing result.It is described
Peak value display unit 11 and valley display unit 12 respectively correspond the upper limit value and lower limit value of pressure switch, when in detection pressure switch
It is when upper limit value, then corresponding to observe the peak value display unit 11, when detecting the lower limit value of pressure switch, then described in corresponding observation
Valley display unit 12.The testing result includes frontal state and negative state, and the peak value display unit 11 is in running order
When, then refer to that the testing result of the peak value display unit 11 is frontal state, is then negative state when being not at working condition on the contrary；
When the valley display unit 12 is in running order, then refer to that the testing result of the valley display unit 12 is frontal state, on the contrary not
It is then negative state when in running order.
In this embodiment, the peak value display unit 11 and valley display unit 12 are LED light, then peak value is shown
When portion 11 works, the LED light of peak value display unit 11 is bright, does not work then when not working；When valley display unit 12 works, valley display unit
12 LED light is bright, does not work then when not working.
It is described have line detector further include switching switch 21, the switching switch 21 be used for make described in have line detector
Switch between wired working condition and wireless working condition.When there is line detector to be switched to wired working condition, then into
Enter wired detection pattern, has line detector and attachment device described in grafting；When there is line detector to be switched to wireless work shape
When state, then enter radio detection mode, wireless detection device and attachment device described in grafting.
It is described that have line detector further include buzzer 3, peak value display unit 11 or valley display unit 12 at work, buzzing
Device 3 is optionally in work or off position.Specifically, when peak value display unit 11 works, i.e. peak value display unit 11
LED light it is bright when, the buzzer 3 is also started to work and is made a sound；When valley display unit 12 works, i.e. valley display unit
When 12 LED light is bright, the buzzer 3 is also started to work and is made a sound.Also, described to have line detector further include useful
Prevent one from directly making a sound and interfering to close to buzzer 3 in the sound switch for closing the buzzer 3.
Specifically, the sound switch includes silence switch 22 and by-pass switch 23.The silence switch 22 can will be current
The buzzer 3 made a sound is converted into mute, but will not completely close buzzer 3.For example, if pressure switch reaches
When its lower limit value, the valley display unit 12 works, while the buzzer 3 works and makes a sound；At this point, can be by mute
Switch 22 closes buzzer 3；And pressure switch reaches its upper limit value, the peak value display unit 11 works, while the buzzing
Device 3 also works and makes a sound.And the by-pass switch 23 then can bypass completely buzzer 3, and when by-pass switch 23 works, institute
Stating buzzer 3 will not make a sound completely, to prevent from interfering.
To which the invention also includes a kind of method of calibration of pressure switch, which opens pressure by air-source
The upper limit value and lower limit value of pass are verified, and the input display unit to show pneumatics numerical value, institute are provided on the air-source
Stating method of calibration includes:
It is connected to the input terminal and air-source of pressure switch；
The output end of communication connection pressure switch and pressure switch detection device described above are used for data signal transmission
Attachment device the first connecting pin；
The second end of attachment device described in communication connection and the pressure switch setting device；
Control air-source work and the input air into pressure switch, real-time display pneumatics on the input display unit of air-source
Numerical value；
For adjustment air-source so that showing testing result on pressure switch setting device respectively, the testing result includes just
Surface state and negative state；
If show the frontal state of testing result on pressure switch setting device, and input the pneumatics shown on display unit
Numerical value then judges the upper limit value or lower limit of pressure switch respectively in the margin of tolerance of upper limit value or in the margin of tolerance of lower limit value
Value is accurate.
To be judged by the pneumatics numerical value shown in testing result on pressure switch setting device and air-source
Whether the upper limit value and lower limit value of air pressure are accurate.
In actual operation, controllable air-source reaches near lower limit value, after having detected lower limit value, then air is gradually increased
The pneumatics in source, then upper limit value is detected；Or first control air-source reaches near upper limit value, after having detected upper limit value,
The pneumatics of air-source is gradually decreased, then lower limit value is detected.
As described above, the method for calibration includes wired detection pattern, and in wired detection pattern, " communication connects step
Connect the attachment device second end and the pressure switch setting device " include: will have line detector directly with described the
Two connecting pins plug.Correspondingly, in radio detection mode, step " second end of attachment device described in communication connection and institute
State pressure switch setting device " it include: to plug wireless detection device and the second connection end；By wireless detection device and
There is line detector to connect by wireless signal communication.
Specifically, for example, the upper limit value of the pressure switch is 9pa, lower limit value 7pa, then by air-source to pressure
The atmospheric pressure of input 7pa or so in switch, and observation confirmation is carried out by inputting display unit.If 12 work of valley display unit
Make, and input display unit and show to be then to illustrate that the lower limit value of pressure switch is accurate in the margin of tolerance of 7pa, if input display
What portion was shown has been over the margin of tolerance of 7pa, and valley display unit 12 does not work still, then illustrates the lower limit of pressure switch
Value is inaccurate.It inputs the atmospheric pressure of 9pa or so into pressure switch by air-source again, and is carried out by input display unit
Observation confirmation.If peak value display unit 11 works, and inputting display unit is then to illustrate pressure switch in the margin of tolerance of 9pa
Upper limit value is accurate, if the margin of tolerance for having been over 9pa that shows of input display unit, and the still not work of peak value display unit 11
Make, illustrates that the upper limit value of pressure switch is inaccurate.
As described above, the peak value display unit 11 and valley display unit 12 are LED light, and described have line detector
With buzzer 3.The LED light of as peak value display unit 11 is bright when then peak value display unit 11 works, and if at this time not using side
In the case where way switch 23, the buzzer 3 is also made a sound, then can be turned off by silence switch 22；Valley display unit
The LED light of as valley display unit 12 is bright when 12 work, and if at this time not using in the case where by-pass switch 23, the buzzing
Device 3 also makes a sound, then can also be turned off by silence switch 22.If having used by-pass switch 23, buzzer 3 will not be sent out
Sound out, but peak value display unit 11 and valley display unit 12 work normally.
Therefore, in conclusion pressure switch detection device and its detection method in the present invention, devises a kind of new inspection
Survey tool and its corresponding detection method, to by wireless detection device and have line detector in track Vehicular system
It matches, when conditions permit using there is line detector, is filled in the case where condition does not allow using radio detection
It sets, and equally use has line detector output test result.To be more suitable the detection debugging at scene, one can also be into
Row operation, saves human cost, and more efficient, and engineer is also facilitated to carry out regularly repair and maintenance, improves railcar
The safety of braking system.
Although not each embodiment only includes one only it should be appreciated that this specification is described according to embodiment
Vertical technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should be by specification
As a whole, the technical solutions in the various embodiments may also be suitably combined, formed it will be appreciated by those skilled in the art that
Other embodiments.
The series of detailed descriptions listed above are illustrated only for possible embodiments of the invention,
The protection scope being not intended to limit the invention, it is all without departing from equivalent embodiment made by technical spirit of the present invention or change should all
It is included within protection scope of the present invention.
Claims (10)
1. a kind of pressure switch detection device, for detecting the upper limit value and lower limit value of pressure switch, the pressure switch includes
The input terminal and output end being connected with air-source, which is characterized in that the pressure switch detection device includes:
Pressure switch setting device, the pressure switch setting device can be with the output end communication connections of pressure switch and can be right
The pressure signal of pressure switch responds；
For the attachment device of data signal transmission, the attachment device includes the first connecting pin and second connection end, and described the
The connection of the output end of one connecting pin and pressure switch, the second connection end and the pressure switch setting device communication connection.
2. pressure switch detection device according to claim 1, which is characterized in that the pressure switch setting device includes
There is line detector, it is described to there is line detector and the second connection end of the attachment device to plug, and receive pressure switch
Pressure signal and show testing result.
3. pressure switch detection device according to claim 1, which is characterized in that the pressure switch setting device includes
Have a line detector and wireless detection device, the second connection end of the wireless detection device and the attachment device plug and
It is connect with there is line detector by wireless signal communication, the wireless detection device receives pressure signal and output test result
To there is line detector.
4. pressure switch detection device according to claim 2 or 3, which is characterized in that described have the line detector to include
To show the peak value display unit and valley display unit of testing result.
5. pressure switch detection device according to claim 4, which is characterized in that described to have line detector further include cutting
Change switch, the switching switch is for making described have line detector to cut between wired working condition and wireless working condition
It changes.
6. pressure switch detection device according to claim 4, which is characterized in that described to have line detector further include bee
Ring device, the by-pass switch that the buzzer is bypassed and the silence switch for cutting off buzzer sound.
7. a kind of method of calibration of pressure switch, which is characterized in that the method for calibration is by air-source to the upper limit of pressure switch
Value and lower limit value are verified, and the input display unit to show pneumatics numerical value, the verification side are provided on the air-source
Method includes:
It is connected to the input terminal and air-source of pressure switch；
Pressure switch detection device described in any one of output end and claim 1-6 of communication connection pressure switch is used to count
It is believed that the first connecting pin of the attachment device of number transmission；
The second connection end of attachment device described in communication connection and the pressure switch setting device；
Control air-source work and the input air into pressure switch, real-time display pneumatics number on the input display unit of air-source
Value；
Air-source is adjusted so that showing testing result on pressure switch setting device respectively, the testing result includes positive planar
State and negative state；
If show the frontal state of testing result on pressure switch setting device, and input the pneumatics numerical value shown on display unit
Respectively in the margin of tolerance of upper limit value or in the margin of tolerance of lower limit value, then judge that the upper limit or lower limit of pressure switch is quasi-
Really.
8. detection method according to claim 7, which is characterized in that the pressure switch setting device includes wired detection
Device, the method for calibration includes wired detection pattern, in wired detection pattern, the second connection end of the attachment device with
It is described to there is line detector to plug.
9. detection method according to claim 7, which is characterized in that the pressure switch setting device includes wired detection
Device and wireless detection device, the method for calibration includes radio detection mode, in radio detection mode, the attachment device
Second connection end plugged with the wireless detection device, wireless detection device and have line detector logical by wireless signal
News connection.
10. detection method according to claim 7, which is characterized in that described to have line detector further include buzzer, peak
When being worth display unit or in running order valley display unit, buzzer is optionally in work or off position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910192957.3A CN109765046A (en) | 2019-03-14 | 2019-03-14 | A kind of pressure switch detection device and method of calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910192957.3A CN109765046A (en) | 2019-03-14 | 2019-03-14 | A kind of pressure switch detection device and method of calibration |
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| Publication Number | Publication Date |
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| CN109765046A true CN109765046A (en) | 2019-05-17 |
Family
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|---|---|---|---|
| CN201910192957.3A Pending CN109765046A (en) | 2019-03-14 | 2019-03-14 | A kind of pressure switch detection device and method of calibration |
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| CN112285548A (en) * | 2020-10-23 | 2021-01-29 | 苏州汇亿达光学科技有限公司 | Conduction testing method of mute switch |
| CN113984364A (en) * | 2021-11-01 | 2022-01-28 | 中车大同电力机车有限公司 | Detection method and device for pressure switch |
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Application publication date: 20190517 |