CN207516349U - A kind of machinery light sensation Combinational redundancy formula water quality monitor metering device - Google Patents
A kind of machinery light sensation Combinational redundancy formula water quality monitor metering device Download PDFInfo
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- CN207516349U CN207516349U CN201721381585.1U CN201721381585U CN207516349U CN 207516349 U CN207516349 U CN 207516349U CN 201721381585 U CN201721381585 U CN 201721381585U CN 207516349 U CN207516349 U CN 207516349U
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- water quality
- motor
- piston rod
- metering device
- light sensation
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Abstract
A kind of machinery light sensation Combinational redundancy formula water quality monitor metering device.Including motor, screw, piston rod and plunger shaft, the motor connects piston rod by shaft coupling connection wire rod, screw by lead screw pair, and piston rod moves left and right in plunger shaft, and plunger shaft is connected with water inlet pipe and drainpipe；Further include infrared distance sensor, photo-electric range sensor and controller, the both ends of the infrared distance sensor are separately mounted on the motor face opposite with piston rod, photo-electric range sensor is mounted on above water receiver and inside face water receiver, and controller is electrically connected respectively with infrared distance sensor and photo-electric range sensor.The utility model can accurately control the volume of water quality sampling sample water, realize precision and the automation of water quality sampling, so as to improve the accuracy of water quality detection result.
Description
Technical field
The utility model is related to a kind of liquid metering device, especially a kind of mechanical light sensation Combinational redundancy formula water quality monitor
Use metering device.
Background technology
In order to protect water environment, it is necessary to strengthen the monitoring to sewage discharge；Drinking water quality declines, to human health risk
Greatly, water quality testing meter plays an important role in environmental protection, the detection of water quality and fwaater resources protection.It is however, traditional
Under pattern, the acquisition of water sample is carried out by the way of artificial, and people are ensured by utensils such as graduated cylinders using the visual method of human eye
Detect the volume of water sample.This method error is big, and precision is low, can not ensure the accuracy of acquired volume of water sample, this will be direct
Influence testing result of the water quality monitor for target water sample.
A kind of known electric drive piston type liquid micro flow measurement standard device (ZL 201110208724.1).Step
One end connection of the stepper motor through speed reducer, positive coupling and ball screw, the other end are slidably connected with piston hole；Piston cylinder
It is connected by the water outlet of three-way connection and solenoid valve, the water inlet of solenoid valve is connect with water tank；Divide on two crossbeams of pedestal
It is not mounted parallel to the guide rail of ball screw, two both ends that a guide rail is separately mounted to close to switch, and and control system
The next PLC input terminal electrical connection；Spill link block, bolt and nut and pistons end are housed on the sliding block of two guide rails
It is fixedly connected with block side；Grating scale is installed positioned at another guide rail side, the L-type connecting plate on spill link block
Lower section is equipped with grating head.Using piston type principle and the displacement distance using optical grating ruler measurement piston, by the position feedback of piston
To control system, piston movement speed, time and position are can control, gauging calibration is carried out to tiny flow quantity.But the device is lived
Plug round trip only realizes that single measures, precision low deficiency small there are measures range.In addition, it is existing can realize it is secondary
The device (CN 201611233219.1) of measurement, although realizing the wide requirement with secondary measurement of measures range, its flow
Meter metering is influenced by fluid temperature, flow velocity, electromagnetic interference and measuring device internal precipitate etc., and there are measuring accuracy fluctuations
Greatly, while graduated scale metering method is difficult to realize automatic gauge, the requirement to gager is high, and metric results are by artificial subjective shadow
It rings greatly, equally exists the low deficiency of measuring accuracy.
Invention content
In order to overcome the above-mentioned deficiency of the prior art, the utility model provides a kind of mechanical light sensation Combinational redundancy formula water quality prison
Instrument metering device is surveyed, more precisely can with protection control the volume of water sampling, improves water quality detection result
Accuracy can realize automatic gauge.
The utility model solve its technical problem the technical solution adopted is that：Including motor, screw, piston rod and piston
Chamber, the motor connect piston rod by shaft coupling connection wire rod, screw by lead screw pair, and piston rod left and right in plunger shaft is moved
Dynamic, plunger shaft is connected with water inlet pipe and drainpipe；Infrared distance sensor, photo-electric range sensor and controller are further included,
The both ends of the infrared distance sensor are separately mounted on the motor face opposite with piston rod, the installation of photo-electric range sensor
Above water receiver and inside face water receiver, controller is electrically connected respectively with infrared distance sensor and photo-electric range sensor
It connects.
Further, water inlet pipe check valve and drainpipe check valve are separately installed on the water inlet pipe and drainpipe.
Further, the photo-electric range sensor is fixed on by fixator on water receiver.
Further, the motor and controller are separately mounted to the top and side of motor cabinet.
Further, described infrared distance sensor one end is mounted on motor cabinet, and the other end is installed on the piston rod.
Further, the motor is stepper motor.
Compared with prior art, a kind of mechanical light sensation Combinational redundancy formula water quality monitor metering device of the utility model,
Accurately detect liquid level using photoelectric sensor, at the same accurately detected using infrared distance sensor piston rod movement away from
From by both controller regulation and control formation Redundancy Design, so as to ensure that the accurate control of piston rod shift length, it is ensured that obtain
Volume of water sample accuracy, and then improve the accuracy of water quality detection result, while operating process realizes automation meter
Amount.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram of the utility model one embodiment.
In figure, 1, motor cabinet；2nd, motor；3rd, shaft coupling；4th, screw；5th, piston rod；6th, bearing；7th, plunger shaft；8th, it intakes
Pipe；9th, drainpipe；10th, drainpipe check valve；11st, water inlet pipe check valve；12nd, photo-electric range sensor；13rd, water receiver；14、
Fixator；15th, controller；16th, infrared distance sensor.
Specific embodiment
Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the part of the embodiment of the utility model, instead of all the embodiments.Based on the reality in the utility model
Apply example, those of ordinary skill in the art's all other embodiments obtained without making creative work all belong to
In the scope of protection of the utility model.
Fig. 1 shows the structure diagram of one preferred embodiment of the utility model, a kind of mechanical light sensation group in figure
Redundance type water quality monitor metering device is closed, including motor cabinet 1, motor 2, shaft coupling 3, screw 4, piston rod 5, bearing 6, is lived
Fill in chamber 7, water inlet pipe 8, drainpipe 9, drainpipe check valve 10, water inlet pipe check valve 11, photo-electric range sensor 12, water storage
Device 13, fixator 14, controller 15 and infrared distance sensor 16.
Motor 2 is installed, motor cabinet 1 supports the height of motor 2 to be docked with 4 level of leading screw on the motor cabinet 1；The electricity
Machine 2 passes through 3 connection wire rod 4 of shaft coupling；The end that the screw 4 connects after piston rod 5 by lead screw pair passes through 6, bearing
It holds, piston rod moves left and right in plunger shaft 7；The plunger shaft 7 is connected with water inlet pipe 8 and drainpipe 9, and water inlet pipe 8 is from water storage
It absorbs water in device 13, then quality inspection container is delivered to by drainpipe 9；Described 16 one end of infrared distance sensor is mounted on motor cabinet 1
On, the other end is mounted on piston rod 5；Photo-electric range sensor 12 is fixed on by fixator 14 on water receiver 13, with storage
The relative position of hydrophone is constant.
On the piston rod 5 lead screw pair is collectively constituted with screw 4 comprising screw-nut structure, the structure.Using lead screw pair
Transmission, can ensure higher basic displacement precision, and stable drive, and mechanical efficiency is high.
Water inlet pipe check valve 10 and drainpipe check valve 11 are separately installed on the water inlet pipe 8 and drainpipe 9；The work
When filling in the water suction of chamber 8, the water inlet pipe check valve 10 is opened, and drainpipe check valve 11 is closed；It is described during 8 draining of plunger shaft
Drainpipe check valve 11 is opened, and water inlet pipe check valve 10 is closed.The design of check valve can absorb water in plunger shaft and drainage procedure
The middle unidirectional normal work of guarantee.
The photo-electric range sensor 12 is fixed with 13 relative position of water receiver, and storage can be accurately detected in drainage procedure
Sample water liquid level in hydrophone 13；Described 16 one end of infrared distance sensor is mounted on motor cabinet 1, and the other end, which is mounted on, lives
Stopper rod 5 can accurately detect piston rod displacement distance, photo-electric range sensor 12 and infrared distance in water suction, drainage procedure
Sensor 16 forms Redundancy Design, the water suction for the control plunger shaft that can accurately stablize and displacement.
Controller 15 is installed on the motor cabinet 1；The controller 15 can be according to photo-electric range sensor 12, red
The feedback information of outer range sensor 16 accurately controls the shift length of piston rod 5, so as to accurately control plunger shaft 7 to the left with
The amount of moving right realizes accurate sampling.
The motor 2 is stepper motor.Using stepper motor, control performance is good and at low cost for power source.
The operation principle of the utility model is：
(a) motor drives leading screw to rotate forward by shaft coupling；
(b) screw-rod-driven and piston bar moves to left, and realizes water suction；
(c) infrared distance sensor detects piston rod displacement distance d in real time1, and feed back to controller；
(d) controller according to feedback come piston rod displacement distance d1, work as d1During equal to setting value, piston rod stop motion；
If being not equal to, motor, which continues to run until, reaches precalculated position；
(e) after a period of time, draining is realized in motor reversal, driving leading screw reversion；
(f) controller is to piston rod displacement distance d1With feeding back the liquid level d of coming2Consider, setting weight w1With
w2, work as w1d1+w2d2During equal to setting value, piston rod stop motion；If being not equal to, motor continues to run until that arrival is predetermined
Position.
The above, is only the preferred embodiment of the utility model, and limit in any form is not done to the utility model
System, it is every according to the technical essence of the utility model, any simple modification and equal variation are made to above example, is fallen
Enter within the scope of protection of the utility model.
Claims (6)
1. a kind of machinery light sensation Combinational redundancy formula water quality monitor metering device, including motor (2), screw (4), piston rod
(5) and plunger shaft (7), the motor (2) connect piston by shaft coupling (3) connection wire rod (4), screw (4) by lead screw pair
Bar (5), piston rod (5) move left and right in plunger shaft (7), and plunger shaft (7) is connected with water inlet pipe (8) and drainpipe (9)；It is special
Sign is：Infrared distance sensor (16), photo-electric range sensor (12) and controller (15) are further included, the infrared distance passes
The both ends of sensor (16) are separately mounted to motor (2) and on the opposite face of piston rod (5), photo-electric range sensor (12) is installed
Above the water receiver (13) and face water receiver (13) is internal, controller (15) respectively with infrared distance sensor (16) and photoelectricity
Formula range sensor (12) is electrically connected.
2. a kind of mechanical light sensation Combinational redundancy formula water quality monitor metering device according to claim 1, it is characterized in that：
Water inlet pipe check valve (10) and drainpipe check valve (11) are separately installed on the water inlet pipe (8) and drainpipe (9).
3. a kind of mechanical light sensation Combinational redundancy formula water quality monitor metering device according to claim 1 or 2, feature
It is：The photo-electric range sensor (12) is fixed on by fixator (14) on water receiver (13).
4. a kind of mechanical light sensation Combinational redundancy formula water quality monitor metering device according to claim 1 or 2, feature
It is：The motor (2) and controller (15) are separately mounted to the top and side of motor cabinet (1).
5. a kind of mechanical light sensation Combinational redundancy formula water quality monitor metering device according to claim 4, it is characterized in that：
Described infrared distance sensor (16) one end is mounted on motor cabinet (1), and the other end is mounted on piston rod (5).
6. a kind of mechanical light sensation Combinational redundancy formula water quality monitor metering device according to claim 1 or 2, feature
It is：The motor (2) is stepper motor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721381585.1U CN207516349U (en) | 2017-10-25 | 2017-10-25 | A kind of machinery light sensation Combinational redundancy formula water quality monitor metering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721381585.1U CN207516349U (en) | 2017-10-25 | 2017-10-25 | A kind of machinery light sensation Combinational redundancy formula water quality monitor metering device |
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| CN207516349U true CN207516349U (en) | 2018-06-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782872A (en) * | 2017-10-25 | 2018-03-09 | 中国矿业大学 | A kind of mechanical light sensation Combinational redundancy formula water quality monitor metering device |
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2017
- 2017-10-25 CN CN201721381585.1U patent/CN207516349U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782872A (en) * | 2017-10-25 | 2018-03-09 | 中国矿业大学 | A kind of mechanical light sensation Combinational redundancy formula water quality monitor metering device |
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