CN205670062U - Based on manometric pressure monitoring mechanism and pressure monitoring regulation device - Google Patents
Based on manometric pressure monitoring mechanism and pressure monitoring regulation device Download PDFInfo
- Publication number
- CN205670062U CN205670062U CN201620579649.8U CN201620579649U CN205670062U CN 205670062 U CN205670062 U CN 205670062U CN 201620579649 U CN201620579649 U CN 201620579649U CN 205670062 U CN205670062 U CN 205670062U
- Authority
- CN
- China
- Prior art keywords
- grating
- pressure
- signal
- infrared sensor
- processing means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses based on manometric pressure monitoring regulation device, including Pressure gauge, support, infrared detecting device, processing means, alarm device and electric pressure-regulating valve, this electric pressure-regulating valve is located at product pressure and the row pressure pipeline of the monitored object of Pressure gauge.This support includes cross bar, montant and circular pin；This Pressure gauge is installed in cross bar.This infrared detecting device includes that the grating being located at dial scale and the infrared sensor being located on circular pin, this infrared sensor and grating alignment coordinate, and is rotated by hand of dial and blocks grating triggering infrared sensor to produce grating signal；This processing means is installed on support, and this processing means receives grating signal, obtains hand of dial according to grating signal and points to scale value；Compared with preset range by processing means scale value, drive alarm device to send warning when beyond preset range, drive electric pressure-regulating valve regulation and control pressure.It has the advantage that can automation mechanized operation, safe and reliable.
Description
Technical field
This utility model relates to a kind of based on manometric pressure monitoring mechanism and pressure monitoring regulation device.
Background technology
Pressure gauge (English name: pressure gauge) refers to flexible member as sensing element, measures and indicates height
In the instrument of ambient pressure, apply extremely widespread, almost throughout all of industrial flow and scientific research field, at heat distribution pipe network, oil
The fields such as gas transmission, water and air supply system, vehicle maintenance maintenance factory shop are seen everywhere.Especially survey with technology at industrial stokehold
During amount, owing to the elastic sensing element of mechanical compression table has the highest mechanical strength and the characteristic such as convenient for production,
Mechanical compression table is increasingly widely applied.
But, common Pressure gauge is only able to display the supplemental characteristic to its measuring pressure, it is impossible to real-time online is to O&M people
The pressure parameter that member's display, offer are surveyed, and when pressure anomaly situation occurs, it is impossible to provide early warning letter to operation maintenance personnel in time
Breath, more cannot realize regulating its measuring pressure in time.At present, solving drawbacks described above method is Real Time Observation, report artificially,
When pressure anomaly, the most manually regulating and controlling highly dependent upon operator, this is easy for error, deviation occur, even operates mistake
The fortuitous events such as mistake.Particularly, for the regulation and control of the different pressures that complicated pressure piping produces, multiple Pressure gauge is often related to
And pressure-regulating valve, it is necessary to multiple operator personal monitoring respectively and regulation and control pressure, the operation of this complexity, not only expend
Human and material resources, financial resources, but also the security reliability produced cannot be ensured.
Utility model content
This utility model provides based on manometric pressure monitoring mechanism and pressure monitoring regulation device, which overcomes the back of the body
Based on the deficiency existing for the monitoring regulation and control of manometric artificial pressure in scape technology.
One of this utility model technical scheme used solving its technical problem is:
Based on manometric pressure monitoring mechanism, including Pressure gauge 10, it is characterised in that: also include support 20 and infrared inspection
Survey device 30；This support 20 includes that a cross bar 21, is installed in the montant 22 and of cross bar 21 and is installed in the circle on montant 22
Shape bar 23；This Pressure gauge 10 is installed in cross bar 21, this circular pin 23 and the alignment of Pressure gauge 10 dial plate 11 parallel interval；This infrared inspection
Survey the grating 31 that device 30 includes being located at dial plate 11 scale or scale correspondence position and the infrared sensor being located on circular pin 23
32, this infrared sensor 32 and grating 31 alignment coordinate, and block grating 31 by the rotation of dial plate 11 pointer 12 and trigger infrared sensing
Device 32 is to produce grating signal, and this infrared detecting device 30 has the signal output part for exporting grating signal.
Among one embodiment: this Pressure gauge has pedestal 13 10 times, this pedestal 13 is fixed in cross bar 21 the second end, and this erects
Bar 22 is fixed in cross bar 21 first end.
Among one embodiment: each scale of this dial plate 11 is designed with the grating 31 of a correspondence, this each grating 31 is right
The most adaptive infrared sensor 32.
This utility model solves the two of the technical scheme used of its technical problem:
Based on manometric pressure monitoring regulation device, including Pressure gauge 10, support 20, infrared detecting device 30, process
Device 40, alarm device 50 and electric pressure-regulating valve 60, this electric pressure-regulating valve 60 be located at the monitored object of Pressure gauge 10 product pressure and
Row pressure pipeline；
This support 20 includes that a cross bar 21, is installed in the montant 22 and of cross bar 21 and is installed in the circle on montant 22
Bar 23；This Pressure gauge 10 is installed in cross bar 21, this circular pin 23 and the alignment of Pressure gauge 10 dial plate 11 parallel interval；
This infrared detecting device 30 includes the grating 31 being located at dial plate 11 scale or scale correspondence position and is located at circular pin
Infrared sensor 32 on 23, this infrared sensor 32 and grating 31 alignment coordinate, and are rotated by dial plate 11 pointer 12 and block light
Grid 31 trigger infrared sensor 32 to produce grating signal；
This processing means 40 is installed on support 20, and this alarm device 50 is installed in support 20 or processing means 40；Should
Processing means 40 signal connection infrared sensor 32, to receive grating signal, obtains dial plate 11 pointer 12 according to grating signal and points to
Scale value；This processing means 40 signal connects alarm device 50, and this processing means 40 signal connects electric pressure-regulating valve 60, by place
Reason device 40 scale value compares with preset range, drives alarm device 50 to send warning, drive electronic when beyond preset range
Pressure regulator valve 60 regulates and controls pressure.
Among one embodiment: this Pressure gauge has pedestal 13 10 times, this pedestal 13 is fixed in cross bar 21 the second end, and this erects
Bar 22 is fixed in cross bar 21 first end.
Among one embodiment: each scale of this dial plate 11 is designed with the grating 31 of a correspondence, this each grating 31 is right
The most adaptive infrared sensor 32；This processing means 40 is set up and has grating signal and the scale value one of infrared sensor 32 correspondence
The data base of one correspondence；This processing means 40 obtains, according to the grating signal received, the quarter that this grating signal is corresponding from data base
Angle value.
Among one embodiment: this processing means 40 is installed in the middle part of montant 22 and includes micro-control processor 41 and telecommunication circuit
42, this micro-control processor 41 and telecommunication circuit 42 signal connect, and this micro-control processor 41 and alarm device 50 signal connect, and this leads to
Letter circuit 42 and infrared sensor 32 signal connect, and this telecommunication circuit 42 and electric pressure-regulating valve 60 signal connect.
Among one embodiment: this telecommunication circuit 42 is bluetooth communication circuit, WIFI telecommunication circuit or ZigBee communication circuit.
Among one embodiment: also include remote control unit 70, this remote control unit 70 signal connects telecommunication circuit 42.
The technical program is compared with background technology, and it has the advantage that
Blocking the grating at this scale value by pointer, the infrared sensor of triggering alignment, to produce grating signal, processes
Device receives grating signal, obtains hand of dial according to grating signal and points to scale value, compares this scale value and preset range, as
It is positioned at outside preset range, then produces alarm command and regulation and control driving instruction, on the one hand send alarm command, on the other hand regulation and control
Driving instruction drives electric pressure-regulating valve to regulate corresponding valve opening, carries out pressure regulation, therefore overcomes background technology institute
The deficiency that exists and produce following technique effect: a, easy to use, simply installs, low price, intelligence degree degree, can be automatic
Change operation, and the operation replacing artificial technologyization, complicating can be realized, the most loaded down with trivial details fine technical profession is become letter
Folk prescription is just, it is often more important that safe and reliable；B, blocked the grating at this scale value by pointer, trigger the infrared sensor of alignment
To produce grating signal, processing means receives grating signal, obtains hand of dial according to grating signal and points to scale value, obtains and carve
Angle value is accurate, simple in construction.
Remote control unit signal connects telecommunication circuit, can show pressure scale in real time, can remotely control again.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is that multiple monitoring objects are monitored the structural representation of regulation and control by this utility model device automatically；
Fig. 2 is the front view of the infrared detecting device of this utility model device；
Fig. 3 is the schematic diagram that this utility model device arranges grating on Pressure gauge；
Fig. 4 is a side schematic view based on manometric pressure monitoring regulation device of this utility model device, does not has
Draw remote control unit and electric pressure-regulating valve.
Detailed description of the invention
Refer to Fig. 1 to Fig. 4, based on manometric pressure monitoring regulation device, including Pressure gauge 10, support 20, infrared
Detection device 30, processing means 40, alarm device 50, electric pressure-regulating valve 60 and remote control unit 70, this electric pressure-regulating valve 60
It is located at product pressure and the row pressure pipeline of the monitored object of Pressure gauge 10, such as product pressure and the row pressure pipeline of monitoring object pressure vessel, produces
Pressure and row pressure pipeline such as include that the product pressure pipe road and of a connection pressure vessel connects the row pressure pipeline of pressure vessel, this electric adjustable
Pressure valve 60 is located at product pressure pipe road or/and row pressure pipeline.
This support 20 include a cross bar 21, be installed in the montant 22 and of cross bar 21 first end be installed in montant 22 it
On circular pin 23, circular pin 23 lower end is fixed in montant 22 upper end, this relative montant 22 axially symmetric disposition of circular pin 23.Should
Pressure gauge has pedestal 13 10 times, and this pedestal 13 is fixed in cross bar 21 the second end.This circular pin 23 and Pressure gauge 10 dial plate 11
Parallel interval is alignd.
This infrared detecting device 30 includes the grating 31 being located at dial plate 11 scale or scale correspondence position and is located at circular pin
Infrared sensor 32 on 23, this infrared sensor 32 and grating 31 alignment coordinate, and are rotated by dial plate 11 pointer 12 and block light
Grid 31 trigger infrared sensor 32 to produce grating signal.Preferably, each scale of this dial plate 11 is designed with the grating of a correspondence
31, this each grating 31 aligns an adaptive infrared sensor 32.Setting up in this micro-control processor 41 has infrared sensor 32 right
The grating signal answered and scale value data base one to one, this micro-control processor 41 according to receive grating signal from data base
The scale value that this grating signal of middle acquisition is corresponding, obtains dial plate 11 pointer 12 and points to scale value, obtains monitoring object real-time pressure
Value.
This processing means 40 is installed in the middle part of montant 22 and includes micro-control processor 41 and telecommunication circuit 42, and this micro-control processes
Device 41 and telecommunication circuit 42 signal connect.This telecommunication circuit 42 is as logical for bluetooth communication circuit, WIFI telecommunication circuit or ZigBee
Letter circuit.This alarm device 50 is installed on support 20, and this micro-control processor 41 and alarm device 50 signal connect.This communication electricity
Road 42 and infrared sensor 32 signal connect, so that micro-control processor 41 can receive grating signal by telecommunication circuit 42.This leads to
Letter circuit 42 and electric pressure-regulating valve 60 signal connect, so that micro-control processor 41 can control electric pressure-regulating valve by telecommunication circuit 42
60.This remote control unit 70 signal connects telecommunication circuit 42, so that real-time pressure scale value is sent to remote control unit 70,
To show real-time pressure scale value on the display of remote control unit 70, carry sending warning on remote control unit 70
Wake up operator.This remote control unit 70 is such as a computer or a mobile phone or an IPAD etc..This alarm device includes LED 51
With buzzer 52.
Compared with preset range by processing means 40 scale value, drive alarm device 50 to send when beyond preset range
Report to the police, drive electric pressure-regulating valve 60 to regulate and control pressure.This preset range such as comprises the low voltage value allowing pressure and the height allowing pressure
Pressure value, but do not limit with this, as only included a predetermined value, i.e. send warning more than predetermined value, i.e. drive electric pressure-regulating valve 60.
This more such as uses comparator.
The pressure monitoring regulation and control method of pressure monitoring regulation device, including:
Step 10, is installed on grating 31 Pressure gauge 10 dial plate 11 scale or position corresponding to scale, is pacified by Pressure gauge 10
It is contained on support 20, infrared sensor 32 is fixed in support 20, make infrared sensor 32 and grating 31 alignment coordinate, in monitoring
In the product pressure of regulation and control object and row pressure pipeline, electric pressure-regulating valve 60 is set；
Step 20, for infrared detecting device 30, micro-control processor 41, telecommunication circuit 42, electric pressure-regulating valve 60 and remotely controls
Unit 70 processed provides power supply, connects this parts by telecommunication circuit 42.
Step 30, operator are operated remote control unit 70 and are arranged the ginseng of micro-control processor 41 by telecommunication circuit 42
Number, the limit high-voltage value that this parameter includes preset range, need to take urgent measure, this preset range comprises the low pressure allowing pressure
Value and the high-voltage value of permission pressure；This parameter also includes grating signal and scale value data base one to one.
Step 40, when monitoring regulation and control object produces pressure, dial plate 11 pointer 12 starts to rotate, the dial plate 11 of pointer 12 instruction
Scale value is the real-time pressure value of monitoring regulation and control object；When pointer 12 turns to monitor at the scale value that regulation and control object pressure is corresponding
Time, pointer 12 blocks the grating 31 at this scale value, triggers the infrared sensor 32 of alignment to produce grating signal, infrared sensing
Device 32 sends this grating signal to micro-control processor 41 by telecommunication circuit 42；
Step 50, micro-control processor 41 receives grating signal, obtains dial plate 11 according to grating signal numbering from data base
Pointer 12 points to scale value, and this scale value is pressure instantaneous value, is sent to remotely control by telecommunication circuit 42 by this scale value
Unit 70 also shows with teaching process personnel's real-time pressure value, remote control unit 70 on the display of remote control unit 70
Record data, and compare this scale value and preset range, as outside being positioned at preset range (higher than allowing the high-voltage value of pressure, or,
Low voltage value less than allowing pressure), then produce alarm command and regulation and control driving instruction, and perform step 60, continuously carry out simultaneously
Step 40, otherwise continuously carries out step 40；
Step 60, micro-control processor 41 sends alarm command to alarm device 50, driving warning dress by telecommunication circuit 42
Putting 50 and send warning, this alarm device such as LED is bright and the buzzing sound；Micro-control processor 41 sends regulation and control by telecommunication circuit 42
Driving instruction, to electric pressure-regulating valve 60, drives electric pressure-regulating valve 60 to regulate corresponding valve opening, carries out pressure regulation.Electronic
During pressure regulator valve carries out pressure regulation, Pressure gauge changes force value according to the adjustment of pressure in real time；Micro-control processor 41 is real
Shi Zidong monitoring the real-time pressure value of recording manometer, when real-time pressure value is in the scope of normal permission, micro-control processes
Device sends halt instruction, controls electric pressure-regulating valve 60 by halt instruction and stops.
In this step 50, micro-control processor 41 also judges that this scale value whether more than limit high-voltage value, the most then produces tight
Anxious instruction, is located at producing when pressure receives emergency instruction with the electric high pressure valve on row pressure pipeline of monitored object and closes, be located at institute
The row pressure valve produced on pressure and row pressure pipeline of monitoring object is opened and is carried out emergency decompression, sends alarm command, and alarm device connects
Receive alarm command and send warning, as required, it is also possible to: micro-control processor is sent to remote control unit by telecommunication circuit
Urgency signal and jerk operation report, request operator's human intervention checks fault；Otherwise compare this scale value and default model
Enclose.
The remote control unit of this utility model device can also directly initiate electric pressure-regulating valve by telecommunication circuit to be carried out
Pressure regulates, and operates including jerk；The remote control unit of this utility model device can also be by telecommunication circuit in real time with micro-
Control processor is set up and is electrically connected with, and arranges relevant monitoring automatically and regulation and control parameter in real time；The micro-control of this utility model device processes
The data of monitoring and regulation process automatically all can be recorded, process, analyze by device and remote control unit, and form report
Accuse.
The above, only this utility model preferred embodiment, therefore can not limit what this utility model was implemented according to this
Scope, the equivalence change i.e. made according to this utility model the scope of the claims and description and modification, all should still belong to this practicality new
In the range of type contains.
Claims (9)
1. based on manometric pressure monitoring mechanism, including Pressure gauge (10), it is characterised in that: also include support (20) and infrared
Detection device (30)；This support (20) includes that a cross bar (21), a montant (22) and being installed in cross bar (21) are installed in perpendicular
Circular pin (23) on bar (22)；This Pressure gauge (10) is installed in cross bar (21), this circular pin (23) and Pressure gauge (10) table
Dish (11) parallel interval is alignd；This infrared detecting device (30) includes being located at dial plate (11) scale or the grating of scale correspondence position
(31) coordinate with the infrared sensor (32) be located on circular pin (23), this infrared sensor (32) and grating (31) alignment, logical
Cross dial plate (11) pointer (12) rotate block grating (31) trigger infrared sensor (32) to produce grating signal, this infrared detection
Device (30) has the signal output part for exporting grating signal.
It is the most according to claim 1 based on manometric pressure monitoring mechanism, it is characterised in that: have under this Pressure gauge (10)
Having pedestal (13), this pedestal (13) to be fixed in cross bar (21) the second end, this montant (22) is fixed in cross bar (21) first end.
It is the most according to claim 1 based on manometric pressure monitoring mechanism, it is characterised in that: this dial plate (11) each
Scale is designed with the grating (31) of a correspondence, and this each grating (31) aligns an adaptive infrared sensor (32).
4. based on manometric pressure monitoring regulation device, including Pressure gauge (10), it is characterised in that: also include support (20),
Infrared detecting device (30), processing means (40), alarm device (50) and electric pressure-regulating valve (60), this electric pressure-regulating valve (60) sets
Product at Pressure gauge (10) monitored object is pressed and row pressure pipeline；
This support (20) includes that a cross bar (21), a montant (22) and being installed in cross bar (21) are installed on montant (22)
Circular pin (23)；This Pressure gauge (10) is installed in cross bar (21), and this circular pin (23) is parallel with Pressure gauge (10) dial plate (11)
Grid alignment；
This infrared detecting device (30) includes the grating (31) being located at dial plate (11) scale or scale correspondence position and is located at circle
Infrared sensor (32) on bar (23), this infrared sensor (32) and grating (31) alignment coordinate, by dial plate (11) pointer
(12) rotation is blocked grating (31) and is triggered infrared sensor (32) to produce grating signal；
This processing means (40) is installed on support (20), and this alarm device (50) is installed in support (20) or processing means (40)
On；This processing means (40) signal connection infrared sensor (32), to receive grating signal, obtains dial plate according to grating signal
(11) pointer (12) points to scale value；This processing means (40) signal connects alarm device (50), this processing means (40) signal
Connect electric pressure-regulating valve (60), compared with preset range by processing means (40) scale value, drive when beyond preset range
Alarm device (50) sends warning, drives electric pressure-regulating valve (60) regulation and control pressure.
It is the most according to claim 4 based on manometric pressure monitoring regulation device, it is characterised in that: this Pressure gauge (10)
Under there is pedestal (13), this pedestal (13) is fixed in cross bar (21) the second end, and this montant (22) is fixed in cross bar (21) first
End.
It is the most according to claim 4 based on manometric pressure monitoring regulation device, it is characterised in that: this dial plate (11)
Each scale is designed with the grating (31) of a correspondence, and this each grating (31) aligns an adaptive infrared sensor (32)；At this
Reason device (40) is set up and has the grating signal and scale value data base one to one that infrared sensor (32) is corresponding；This process
Device (40) obtains, according to the grating signal received, the scale value that this grating signal is corresponding from data base.
It is the most according to claim 4 based on manometric pressure monitoring regulation device, it is characterised in that: this processing means
(40) it is installed in montant (22) middle part and includes micro-control processor (41) and telecommunication circuit (42), this micro-control processor (41) and leading to
Letter circuit (42) signal connects, this micro-control processor (41) and the connection of alarm device (50) signal, this telecommunication circuit (42) and red
Outer sensor (32) signal connects, and this telecommunication circuit (42) and electric pressure-regulating valve (60) signal connect.
It is the most according to claim 7 based on manometric pressure monitoring regulation device, it is characterised in that: this telecommunication circuit
(42) it is bluetooth communication circuit, WIFI telecommunication circuit or ZigBee communication circuit.
It is the most according to claim 7 based on manometric pressure monitoring regulation device, it is characterised in that: also include remotely controlling
Unit processed (70), this remote control unit (70) signal connects telecommunication circuit (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620579649.8U CN205670062U (en) | 2016-06-15 | 2016-06-15 | Based on manometric pressure monitoring mechanism and pressure monitoring regulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620579649.8U CN205670062U (en) | 2016-06-15 | 2016-06-15 | Based on manometric pressure monitoring mechanism and pressure monitoring regulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205670062U true CN205670062U (en) | 2016-11-02 |
Family
ID=57191315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620579649.8U Active CN205670062U (en) | 2016-06-15 | 2016-06-15 | Based on manometric pressure monitoring mechanism and pressure monitoring regulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205670062U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106556491A (en) * | 2016-06-15 | 2017-04-05 | 厦门医学高等专科学校 | Based on manometric pressure monitoring regulation device and its method |
| CN106768601A (en) * | 2016-12-08 | 2017-05-31 | 中铁十四局集团第二工程有限公司 | A kind of anti-slip casting booster monitoring and warning system and its application method |
-
2016
- 2016-06-15 CN CN201620579649.8U patent/CN205670062U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106556491A (en) * | 2016-06-15 | 2017-04-05 | 厦门医学高等专科学校 | Based on manometric pressure monitoring regulation device and its method |
| CN106768601A (en) * | 2016-12-08 | 2017-05-31 | 中铁十四局集团第二工程有限公司 | A kind of anti-slip casting booster monitoring and warning system and its application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106556491A (en) | Based on manometric pressure monitoring regulation device and its method | |
| AU2021290424B2 (en) | Programmable logic controller-based system and user interface for air sampling in controlled environments | |
| CN202013269U (en) | Air respirator performance detector | |
| CN205670062U (en) | Based on manometric pressure monitoring mechanism and pressure monitoring regulation device | |
| CN105599254A (en) | Injection mold monitoring method and device | |
| CN109683646A (en) | A kind of intelligentized experimental situation condition monitoring system | |
| EP2111533B1 (en) | Verification of process variable transmitter | |
| CN101655407A (en) | Automatic pressure test device and pressure test control method of oil extraction well mouth equipment | |
| CN205317757U (en) | Automatic school device of marking of portable appearance of mining gas and carbon monoxide | |
| CN104913091A (en) | Adjustable visible alarm type safety valve | |
| CN201568049U (en) | Automatic pressure test device of oil-production wellhead equipment | |
| CN103712728A (en) | Electronic pressure gauge | |
| CN112228304B (en) | Air charging and discharging system | |
| CN107588935B (en) | Leaf spring fatigue test system | |
| CN205751190U (en) | A kind of flammable gas alarm assay device | |
| CN210109270U (en) | Locomotive wind pressure relay detection equipment | |
| CN114166501A (en) | Partial stroke testing device and method for intelligent valve positioner | |
| CN219658216U (en) | Digital safety monitoring and early warning device for pressure of air compressor room | |
| CN110878912A (en) | Pressure regulating and leakage alarming integrated device of Internet of things | |
| CN109632002A (en) | A kind of integrated form test bay TT&C system | |
| CN205375123U (en) | Aircraft skin assists monitored control system | |
| RU195824U1 (en) | CHECK-DEMONSTRATION STAND FOR AUTOMATIC FIRE ALARM INSTALLATION | |
| CN209802579U (en) | Air pressure monitoring and alarming system | |
| CN208997450U (en) | A kind of fluid inspection valve of anti-leakage | |
| CN109171885A (en) | Pistol pneumatic control system and control method in a kind of extracorporeal shock wave device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |