CN215178537U - Portable pressure switch test detection device - Google Patents
Portable pressure switch test detection device Download PDFInfo
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- CN215178537U CN215178537U CN202120758437.7U CN202120758437U CN215178537U CN 215178537 U CN215178537 U CN 215178537U CN 202120758437 U CN202120758437 U CN 202120758437U CN 215178537 U CN215178537 U CN 215178537U
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- pressure switch
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- regulating valve
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- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 238000001514 detection method Methods 0.000 title claims abstract description 27
- 230000001105 regulatory effect Effects 0.000 claims description 39
- 238000013461 design Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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Abstract
The utility model discloses a portable pressure switch test detection device, including portable box and case lid, it has the case lid to articulate on the portable box, portable box right flank is equipped with pressure switch gas circuit connector after to in the past in proper order, pressure switch connector plug, power socket and air supply air inlet, be equipped with the control mainboard in the portable box, be equipped with the 24V power on the control mainboard, 24V power front side is equipped with the display screen, the display screen front side is equipped with the start button from a left side to the right side in proper order, the preparation button, reset button and lighting switch, the display screen right side is equipped with pressure transmitter, the last mechanical governing valve that is equipped with of pressure transmitter, the pressure transmitter rear side is equipped with the proportional valve, the proportional valve rear side is equipped with the mechanical air-vent valve, mechanical air-vent valve left side is equipped with the mechanical pressure gauge, the internal control circuit that is equipped with of control mainboard. The utility model has the advantages that: the structural design is small and exquisite, detects the precision height, stable performance.
Description
Technical Field
The utility model relates to a detection device technical field specifically indicates a portable pressure switch test detection device.
Background
The pressure switch is a hardware product applied to a braking system of a motor train unit and a subway train, has the function of sensing the change of air pressure, and is a product for controlling the electric opening and closing state by the air pressure. The pressure switch has two states, namely an on-pressure state and an off-pressure state, the state values of the on-pressure state and the off-pressure state can be set through a knob of the pressure switch, the on-pressure state corresponds to one electric state, namely the contact 1-2 is conducted, and the off-pressure state corresponds to one electric state, namely the contact 2-3 is conducted. Opening and pressing states: namely, when the external air supply pressure reaches a set value, the pressure switch electric contact 1-2 is in a conducting state. And (3) a pressure-off state: i.e. the pressure of the external air supply drops to a set value, the pressure switch electrical contact 2-3 is in a conducting state.
The pressure switch used in the train braking system has strict control on the product quality, and the quality of the pressure switch directly relates to whether the train is safe or not.
The traditional pressure switch test device is generally developed by adopting PLC + IPC, and miniaturization cannot be realized due to the limitation of the size of a device. Meanwhile, due to the limitation of electrical hardware, the AC220V is required to be used for supplying power, the power supply cannot be supplied on a test site under the normal condition, and even if the equipment is moved to the site and the test condition is required to be met, the equipment becomes extremely troublesome.
This type of test device adopts IPC as the host computer, and its performance is higher, has often integrated more test functions, and maneuverability is relatively poor, if do not accept professional operation training, can't use.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is, to above-mentioned problem, provide a structural design is small and exquisite, detects the experimental detection device of portable pressure switch of precision height, stable performance.
In order to solve the technical problem, the utility model provides a technical scheme does: a portable pressure switch test detection device comprises a portable box and a box cover, wherein the portable box is hinged with the box cover, the right side of the portable box is sequentially provided with a pressure switch gas circuit connector, a pressure switch connector plug, a power socket and a gas source air inlet from front to back, a control mainboard is arranged in the portable box, a 24V power supply is arranged on the control mainboard, a display screen is arranged on the front side of the 24V power supply on the control mainboard, a start button, a preparation button, a reset button and a lighting switch are sequentially arranged on the front side of the display screen on the control mainboard from left to right, a pressure transmitter is arranged on the right side of the display screen on the control mainboard, a mechanical speed regulating valve is arranged on the pressure transmitter, a proportional valve is arranged on the rear side of the pressure transmitter on the control mainboard, a mechanical pressure regulating valve is arranged on the rear side of the proportional valve on the control mainboard, a mechanical pressure gauge is arranged on the left side of the mechanical pressure regulating valve on the control mainboard, the air source air inlet and the mechanical pressure gauge are communicated with the mechanical pressure regulating valve, the mechanical pressure regulating valve is communicated with the proportional valve, the proportional valve is communicated with the pressure transmitter, the pressure transmitter is communicated with the pressure switch air circuit connecting port, and a control circuit is arranged in the control main board body.
Compared with the prior art, the utility model the advantage lie in: this portable pressure switch test detection device, air inlet connect outside air supply, and the mechanical air-vent valve is the governing valve of total air supply for adjust the working gas circuit total pressure, and restriction outside air supply pressure is too big, and mechanical pressure table shows current gas circuit total pressure, and cooperation air-vent valve work, proportional valve carry out electrodeless regulation at test in-process rear end atmospheric pressure, in order to satisfy the requirement to the experimental outline, and the governing valve plays the throttling action to the lift of atmospheric pressure, realizes atmospheric pressure slow-rising slow-falling function. The pressure transmitter is used for collecting real-time pressure born by the pressure switch, the gas outlet is connected with a tested object, the use is convenient, the detection precision is high, the performance is stable, the whole detection device is integrated in a portable box, and the pressure transmitter is small in structure and convenient to carry.
As an improvement, the front surface of the portable box is provided with a handle, so that the portable box is convenient to carry.
As an improvement, the front surface of the portable box is provided with a hasp, the front surface of the box cover is provided with a block, the hasp is matched and connected with the block, and the box cover and the portable box can be tightly connected.
As an improvement, the hasp and the block are both two, the two blocks are symmetrically distributed on the case cover, and the two hasps are symmetrically distributed on the front face of the portable case, so that the connection effect of the case cover and the portable case is ensured.
Drawings
Fig. 1 is a top view of the portable pressure switch test detection device of the present invention.
Fig. 2 is a right side view of the portable pressure switch test detection device of the present invention.
Fig. 3 is a front view of the portable pressure switch test detection device of the present invention.
Fig. 4 is a power schematic diagram of a control circuit of the portable pressure switch test detection device of the present invention.
Fig. 5 is the utility model relates to a portable pressure switch test detection device's control circuit's MCU schematic diagram.
Fig. 6 is the utility model relates to a portable pressure switch test detection device's control circuit's analog quantity signal acquisition schematic diagram.
Fig. 7 is a schematic diagram of the signal output of the control circuit of the portable pressure switch test detection device of the present invention.
Fig. 8 is a schematic diagram of the signal input of the control circuit of the portable pressure switch test detection device of the present invention.
Fig. 9 is a control program control logic diagram of a control circuit of the portable pressure switch test detection device of the present invention.
Reference numerals: 1. the portable box comprises a portable box body, a box cover, a pressure switch air path connecting port, a pressure switch connector plug, a power supply socket, a power supply inlet, a gas source air inlet, a control main board, 8 and 24V power supplies, a display screen, a start button, a preparation button, a reset button, a lighting switch, a pressure transmitter, a mechanical speed regulating valve, a proportional valve, a mechanical pressure regulating valve, a pressure gauge, a pressure transmitter, a handle, a mechanical speed regulating valve, a proportional valve, a pressure regulating valve, a pressure gauge, a handle, a snap fastener, a pressure regulating valve, a handle, a pressure regulating valve and a pressure regulating valve, a pressure regulating valve and a pressure regulating valve, a pressure regulating valve and a pressure regulating valve, a pressure regulating valve and a pressure regulating valve, a pressure regulating valve and a pressure regulating valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in the figure, a portable pressure switch test detection device comprises a portable box 1 and a box cover 2, wherein the box cover 2 is hinged on the portable box 1, the right side face of the portable box 1 is sequentially provided with a pressure switch gas circuit connector 3, a pressure switch connector plug 4, a power socket 5 and a gas source air inlet 6 from front to back, a control mainboard 7 is arranged in the portable box 1, a 24V power supply 8 is arranged on the control mainboard 7, a display screen 9 is arranged on the front side of the 24V power supply 8 on the control mainboard 7, a start button 10, a preparation button 11, a reset button 12 and a lighting switch 13 are sequentially arranged on the front side of the display screen 9 on the control mainboard 7 from left to right, a pressure transmitter 14 is arranged on the right side of the display screen 9 on the control mainboard 7, a mechanical speed regulating valve 15 is arranged on the pressure transmitter 14, a proportional valve 16 is arranged on the rear side of the pressure transmitter 14 on the control mainboard 7, the control system is characterized in that a mechanical pressure regulating valve 17 is arranged on the rear side of a proportional valve 16 on the control main board 7, a mechanical pressure gauge 18 is arranged on the left side of the mechanical pressure regulating valve 17 on the control main board 7, the air source air inlet 6 and the mechanical pressure gauge 18 are communicated with the mechanical pressure regulating valve 17, the mechanical pressure regulating valve 17 is communicated with the proportional valve 16, the proportional valve 16 is communicated with a mechanical speed regulating valve 15, the mechanical speed regulating valve 15 is communicated with a pressure switch air passage connecting port 3, and a control circuit is arranged in the control main board 7.
The front surface of the portable box 1 is provided with a handle 19.
The front surface of the portable box 1 is provided with a hasp 20, the front surface of the box cover 2 is provided with a block 21, and the hasp 20 is matched and connected with the block 21.
The portable box comprises a box cover 2, buckles 20 and blocks 21, wherein the buckles 20 and the blocks 21 are symmetrically distributed on the box cover 2, and the buckles 20 are symmetrically distributed on the front surface of the portable box 1.
The utility model discloses a theory of operation: the portable pressure switch test detection device is characterized in that an air inlet is connected with an external air source, and a mechanical pressure regulating valve is a regulating valve of a total air source and used for regulating the total pressure of a working air path and limiting the overlarge pressure of the external air source; the mechanical pressure gauge displays the total pressure of the current gas path, works in cooperation with the pressure regulating valve, and the rear-end gas pressure of the proportional valve is subjected to stepless regulation in the test process so as to meet the requirements on the test outline; the speed regulating valve plays a throttling role in the lifting of air pressure, and the function of slowly lifting the air pressure is realized. The pressure transmitter is used for collecting real-time pressure born by the pressure switch, the gas outlet is connected with a tested object, the control circuit is used for test logic processing, data collection, data edge calculation and external hardware control, and the display screen is used for man-machine interaction, data display and instruction issuing. The device convenient to use, detection precision height, stable performance, whole detection device integration are in portable box, and the structure is small and exquisite, conveniently carries.
The present invention has been described in connection with the embodiments thereof, and the description is not intended to be limiting, and the embodiments of the present invention are shown in the drawings, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (4)
1. The utility model provides a portable pressure switch test detection device, includes portable case (1) and case lid (2), it has case lid (2), its characterized in that to articulate on portable case (1): the portable box is characterized in that a pressure switch gas circuit connecting port (3), a pressure switch connector plug (4), a power socket (5) and a gas source air inlet (6) are sequentially arranged on the right side face of the portable box (1) from the front to the back, a control mainboard (7) is arranged in the portable box (1), a 24V power supply (8) is arranged on the control mainboard (7), a display screen (9) is arranged on the front side of the 24V power supply (8) on the control mainboard (7), a start button (10), a preparation button (11), a reset button (12) and a lighting switch (13) are sequentially arranged on the front side of the display screen (9) on the control mainboard (7) from left to right, a pressure transmitter (14) is arranged on the right side of the display screen (9) on the control mainboard (7), a mechanical speed regulating valve (15) is arranged on the pressure transmitter (14), a proportional valve (16) is arranged on the rear side of the pressure transmitter (14) on the control mainboard (7), the air source control system is characterized in that a mechanical pressure regulating valve (17) is arranged on the rear side of a proportional valve (16) on a control main board (7), a mechanical pressure gauge (18) is arranged on the left side of the mechanical pressure regulating valve (17) on the control main board (7), an air source air inlet (6) and the mechanical pressure gauge (18) are communicated with the mechanical pressure regulating valve (17), the mechanical pressure regulating valve (17) is communicated with the proportional valve (16), the proportional valve (16) is communicated with a mechanical speed regulating valve (15), the mechanical speed regulating valve (15) is communicated with a pressure switch air passage connecting port (3), and a control circuit is arranged in the control main board (7).
2. The portable pressure switch test detection device of claim 1, wherein: the front surface of the portable box (1) is provided with a handle (19).
3. The portable pressure switch test detection device of claim 1, wherein: the portable box is characterized in that a hasp (20) is arranged on the front face of the portable box (1), a block (21) is arranged on the front face of the box cover (2), and the hasp (20) is connected with the block (21) in a matched mode.
4. A portable pressure switch test detection device as claimed in claim 3, wherein: hasp (20) and piece (21) all have two, two piece (21) are taken on case lid (2) symmetric distribution, two hasp (20) are at portable case (1) front symmetric distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120758437.7U CN215178537U (en) | 2021-04-14 | 2021-04-14 | Portable pressure switch test detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120758437.7U CN215178537U (en) | 2021-04-14 | 2021-04-14 | Portable pressure switch test detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215178537U true CN215178537U (en) | 2021-12-14 |
Family
ID=79357169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120758437.7U Expired - Fee Related CN215178537U (en) | 2021-04-14 | 2021-04-14 | Portable pressure switch test detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215178537U (en) |
-
2021
- 2021-04-14 CN CN202120758437.7U patent/CN215178537U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211214 |