CN106706370A - Automatic water quality sampler and operating method thereof - Google Patents
Automatic water quality sampler and operating method thereof Download PDFInfo
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- CN106706370A CN106706370A CN201611259236.2A CN201611259236A CN106706370A CN 106706370 A CN106706370 A CN 106706370A CN 201611259236 A CN201611259236 A CN 201611259236A CN 106706370 A CN106706370 A CN 106706370A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- Hydrology & Water Resources (AREA)
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Abstract
The invention relates to an automatic water quality sampler. The water quality sampler comprises a rotary positioning device, a positioning code disc and a photoelectric switch, wherein the rotary positioning device comprises a power mechanism and a positioning mechanism; the positioning mechanism further comprises a fixing block, a rotating bearing arranged on the fixing block, and a first synchronous idle pulley; slits are formed in the positioning code disc; the positions of the slits correspond to at least two sample reserving bottles arranged on the rotary positioning device; the slits comprise a characteristic slit and ordinary slits; the quantity of the characteristic slit is only one; the photoelectric switch is fixedly arranged on the fixing block; a signal detection area of the photoelectric switch is positioned on the edge of the positioning code disc; and the positioning code disc is rotated under the drive of the first synchronous idle pulley, and the slits are positioned and counted by the photoelectric switch. The automatic water quality sampler disclosed by the invention has the advantages of simple structure, positioning accuracy and the like.
Description
Technical field
It is more particularly to a kind of to be carried out using rotary positioning apparatus and axial direction positioning device the present invention relates to water quality monitoring field
The Water quality automatic sampling device and method of work of three-dimensional localization.
Background technology
In water quality monitoring field, water-quality sampler by water sampling to mixing after bucket, it is necessary to carry out the analysis that keeps sample to water sample,
And be generally provided with multiple side by side in the unit that keeps sample and keep sample bottle, straight line positioning is carried out to the bottle that keeps sample usually through stepper motor at present, but
The positioning method is very easy to lose step, causes deviations so that water sample can not accurately into the bottle that keeps sample.
The content of the invention
In order to solve the deficiency in above-mentioned prior art, the invention provides a kind of simple structure, accurate positioning, together
Shi Shixian rotational positionings and the Water quality automatic sampling device of axially position.
The purpose of the present invention is achieved through the following technical solutions：
A kind of Water quality automatic sampling device, the water-quality sampler includes：
Rotary positioning apparatus, the rotary positioning apparatus include actuating unit and detent mechanism, and the actuating unit includes：
First motor, the first synchronous pulley and the first Timing Belt；The detent mechanism is further included：
Fixed block；
Swivel bearing, the swivel bearing is arranged on fixed block；
First synchronous idle pulley, the described first synchronous idle pulley is with first synchronous pulley by the first Timing Belt phase
Even, moved under the drive of first motor；The swivel bearing is embedded in the described first synchronous idle pulley；
Positioning code-disc, the positioning code-disc is provided with slit, and the position of the slit fills with the rotational positioning is placed on
At least two for putting keep sample bottle one-to-one corresponding；The slit include feature slit and normal slit, the feature slit have and
Only one, the initial position for determining the positioning code-disc；
Optoelectronic switch, the optoelectronic switch is fixed on the fixed block, and the signal detection region of optoelectronic switch is located at institute
The edge of positioning code-disc is stated, the positioning code-disc rotates under the drive of the described first synchronous idle pulley, by the optoelectronic switch
The slit is positioned and counted, so as to be accurately positioned at least two bottles that keep sample.
According to above-mentioned Water quality automatic sampling device, it is preferable that the width of the feature slit is more than the normal slit
Width.
According to above-mentioned Water quality automatic sampling device, alternatively, the optoelectronic switch is one or two.
According to above-mentioned Water quality automatic sampling device, it is preferable that the water-quality sampler is further included：
Axial direction positioning device, the axial direction positioning device is arranged on the rotary positioning apparatus top, including：
The synchronous idle pulley of second motor, the second synchronous pulley, the second Timing Belt and second；
Slide unit, the slide unit is the moving track of sliding block, and slide unit is provided with the position that keeps sample, emptying position and cleaning position；
Sliding block, the sliding block is fixedly connected with second Timing Belt, and second Timing Belt is in second motor
Drive lower so that the sliding block is moved on slide unit, and then is driven the sample reserving tube being fixed on the sliding block and moved down on cleaning pipe
It is dynamic；
Upper and lower limit bit switch, the upper and lower limit bit switch is fixed on the slide unit, the shifting for limiting the sliding block
Dynamic region.
According to above-mentioned Water quality automatic sampling device, it is preferable that be further fixed on fixing pipe on the sliding block, for fixed described
Sample reserving tube and cleaning are managed, and are easy to sample reserving tube and cleaning pipe to enter the bottle that keeps sample.
According to above-mentioned Water quality automatic sampling device, it is preferable that be provided with branch road in the sample reserving tube, the branch road is emptying
Pipe.
According to above-mentioned Water quality automatic sampling device, it is preferable that the position that keeps sample is same position with cleaning position.
According to above-mentioned Water quality automatic sampling device, alternatively, the emptying position is arranged at lower position switch.
The present invention also provides a kind of method of work of above-mentioned Water quality automatic sampling device, and the method for work includes following step
Suddenly：
(A1) the vacant bottle that keeps sample at least two bottles that keep sample is selected, target location A is designated as；
(A2) the first motor, alignment code disc spins are opened, the time that photoswitc detects signal is considerably longer than other inspections
The position for surveying signal is designated as initial position；
(A3) optoelectronic switch is started counting up from initial position, obtains a number of detection signal meter one, when A is counted as i.e.
It is target location, the first motor stalls；
(A4) the second motor is opened, sliding block is moved to the position that keeps sample, sample reserving tube is into keeping sample in the vacant bottle that keeps sample.
According to above-mentioned method of work, it is preferable that the method for work is further comprising the steps：
(B1) target location A is judged, if 0 ＜ A≤M/2, the first motor is rotated forward, when optoelectronic switch is counted as A
When be target location；If M/2 ＜ A ＜ M, the first motor reversal, target position is when optoelectronic switch is counted as (M-A)
Put；If A=0 or M, the first motor stops, and current location is target location, and M is the positional number on the positioning code-disc.
According to above-mentioned method of work, it is preferable that the method for work is further comprising the steps：
(C1) current location is the target location of the previous bottle that keeps sample, and target location B is navigated to from current location A, to working as
Front position A is judged with target location B：
If 0 ＜ B-A≤M/2, the first motor is rotated forward, and target location B is when optoelectronic switch is counted as (B-A)；
If M/2 ＜ B-A ＜ M, the first motor reversal, target location is when optoelectronic switch is counted as [M- (B-A)]
B；
If (- M/2)≤B-A ＜ 0, the first motor is rotated forward, and target position is when optoelectronic switch is counted as [M- (A-B)]
Put B；
If-M ＜ B-A ＜ (- M/2), the first motor reversal is target location when optoelectronic switch is counted as (A-B)
B；
If during B-A=0 or M, the first motor stops, and current location is target location B.
According to above-mentioned method of work, it is preferable that the method for work is further comprising the steps：
(D1) the second motor is opened, sliding block is moved to emptying position, empty keep sample water in bottle sample or rinse water.
According to above-mentioned method of work, alternatively, the photoswitc has two, when two optoelectronic switches are at one section
Signal is detected simultaneously by time and one of photoswitc detects signal in advance, then judge to detect the position of signal in advance
It is set to initial position.
Compared with prior art, the device have the advantages that being：
1st, the present invention realizes being accurately positioned of bottle of keeping sample using rotary positioning apparatus so that accurate the staying into setting of water sample
In sample bottle, step phenomenon will not be lost.
2nd, the present invention is engaged by rotary positioning apparatus with axial direction positioning device, while realizing Plane Rotation and axial direction
Mobile three-dimensional localization, simple structure, low cost；Realize the function that the bottle that keeps sample keeps sample, empties and cleans automatically, stability
Good, reliability is high.
3rd, the present invention is quickly positioned by the forward and reverse of motor to target location, simple, efficient.
4th, motor of the invention drives synchronous pulley operating, and synchronized band drives synchronous idle pulley to rotate, the rotation mode
Moment of torsion is big, and the rotation of synchronous idle pulley can be driven with small electric machine.
Brief description of the drawings
Referring to the drawings, the disclosure will be easier to understand.Skilled addressee readily understands that be：This
A little accompanying drawings are used only for illustrating technical scheme, and are not intended to be construed as limiting protection scope of the present invention.
In figure：
Fig. 1 is the structural representation of the rotary positioning apparatus of the Water quality automatic sampling device of the embodiment of the present invention 1；
Fig. 2 is the structural representation of the axial direction positioning device of the Water quality automatic sampling device of the embodiment of the present invention 1.
Specific embodiment
Fig. 1-2 and following description describe optional embodiment of the invention to instruct how those skilled in the art implement
It is of the invention with reproducing.In order to instruct technical solution of the present invention, some conventional aspects are simplified or have eliminated.Those skilled in the art
It should be appreciated that modification or replacement from these implementation methods will within the scope of the invention.Those skilled in the art should understand that
Following characteristics can combine to form multiple modifications of the invention in a variety of ways.Thus, the invention is not limited in it is following can
Implementation method, and only limited by claim and their equivalent.
Embodiment 1
Fig. 1 schematically illustrates the rotary positioning apparatus structure diagram of the Water quality automatic sampling device of the present embodiment, and Fig. 2 shows
Give to meaning property the axial direction positioning device structure diagram of the Water quality automatic sampling device of the present embodiment, as shown in Figure 1-2, the water
Matter sampler includes：
Rotary positioning apparatus, the rotary positioning apparatus are used to by least two bottles that keep sample of the unit that keeps sample rotate to determine
Position；The rotary positioning apparatus include actuating unit and detent mechanism, and the actuating unit includes：First motor (does not show in figure
Go out), the first synchronous pulley 11 and the first Timing Belt 12；The detent mechanism is further included：
Fixed block 21；
Swivel bearing 22, the swivel bearing is arranged on fixed block 21；
First synchronous idle pulley 23, the described first synchronous idle pulley is with first synchronous pulley by the first Timing Belt phase
Even, moved under the drive of first motor；The swivel bearing is embedded in the described first synchronous idle pulley；
Positioning code-disc 24, the positioning code-disc is provided with slit, the position of the slit be placed on the rotational positioning
At least two on the device bottle one-to-one corresponding that keep sample；The slit includes feature slit 241 and normal slit 242, the feature
Slit one and only one, for determine it is described positioning code-disc initial position；
Optoelectronic switch 25, the optoelectronic switch is fixed on the fixed block, and the signal detection region of optoelectronic switch is located at
The edge of the positioning code-disc, the positioning code-disc rotates under the drive of the described first synchronous idle pulley, is established by cable by the light
Pass is positioned and is counted to the slit, so as to be accurately positioned at least two bottles that keep sample.
Optoelectronic switch be fixed on it is static on the fixed block, positioning code-disc during rotation, slit is established by cable in light
When between pass, optoelectronic switch can detect signal, and the width of slit is different, and optoelectronic switch can detect the time of signal not
Together, therefore：
Further, the width of the feature slit is more than the width of the normal slit, when photoswitc detects letter
Number time be considerably longer than time of other detection signals, this slit location is initial position.After initial position determines, according to
Target location, calculates the distance between initial position and target location, and positioning code-disc is rotated, and optoelectronic switch is counted, and reaches target
Position.
The present embodiment sets an optoelectronic switch, and the duration of the feature slit signal detected according to optoelectronic switch judges just
Beginning position, meanwhile, the optoelectronic switch be also used for position (counting).
In order to realize water sample analysis, the bottle that keeps sample emptying being carried out while automatic sampling and the bottle cleaning that keeps sample, significantly subtract
Sample less blind area, therefore：
Further, the Water quality automatic sampling device also includes：
Axial direction positioning device, the axial direction positioning device is arranged on the rotary positioning apparatus top, including：
Second motor 31, the second synchronous pulley 32, the second Timing Belt 33 and the second synchronous idle pulley 34；
Slide unit 41, the slide unit is the moving track of sliding block, and slide unit is provided with the position that keeps sample, emptying position and cleaning position；
Sliding block 42, the sliding block is fixedly connected with second Timing Belt, and second Timing Belt is in second motor
Drive under cause that the sliding block is moved on slide unit, and then drive and be fixed on sample reserving tube 51 on the sliding block and cleaning pipe 52
Move up and down；
Upper and lower limit bit switch 61,62, the upper and lower limit bit switch is fixed on the slide unit, for limiting the sliding block
Moving area.
The sample reserving tube and cleaning pipe are flexible pipe, are managed to fix the sample reserving tube and cleaning, are easy to sample reserving tube and cleaning
Pipe enters the bottle that keeps sample, therefore：
Further, it is further fixed on fixing pipe 53 on the sliding block.
Analyzer analysis result shows that the water in bottle sample that keeps sample meets standard, then need to empty the water sample kept sample in bottle, therefore：
Further, the branch road of the sample reserving tube is provided with evacuated tube.
The present embodiment also provides the method for work of above-mentioned Water quality automatic sampling device, and the method for work is comprised the following steps：
(A1) the vacant bottle that keeps sample at least two bottles that keep sample is selected, target location A is designated as；
(A2) the first motor, alignment code disc spins are opened, the time that photoswitc detects signal is considerably longer than other inspections
The position for surveying signal is designated as initial position；
(A3) optoelectronic switch is started counting up from initial position, obtains a number of detection signal meter one, when A is counted as i.e.
It is target location, the first motor stalls；
(A4) the second motor is opened, sliding block is moved to the position that keeps sample, sample reserving tube is into keeping sample in the vacant bottle that keeps sample.
The positioning code-disc is circular configuration, in order to improve efficiency, by way of the first motor forward/reverse is combined
Beeline between selection current location and target location carries out rotational positioning, therefore：
Further, the method for work is further comprising the steps of：
(B1) target location A is judged, if 0 ＜ A≤M/2, the first motor is rotated forward, when optoelectronic switch is counted as A
When be target location；If M/2 ＜ A ＜ M, the first motor reversal, target position is when optoelectronic switch is counted as (M-A)
Put；If A=0 or M, the first motor stops, and current location is target location, and M is the positional number on the positioning code-disc.
Water quality automatic sampling device just start shooting operation when, it is necessary to positioned to initial position, after initial position determination, after
The rotational positioning of the continuous bottle that keeps sample need not every time enter the lookup of line home position, it is only necessary to be set to the target location of the previous bottle that keeps sample
The latter initial position of the bottle that keeps sample, therefore：
Further, the method for work is further comprising the steps of：
(C1) current location is the target location of the previous bottle that keeps sample, and target location B is navigated to from current location A, to working as
Front position A is judged with target location B：
If 0 ＜ B-A≤M/2, the first motor is rotated forward, and target location B is when optoelectronic switch is counted as (B-A)；
If M/2 ＜ B-A ＜ M, the first motor reversal, target location is when optoelectronic switch is counted as [M- (B-A)]
B；
If (- M/2)≤B-A ＜ 0, the first motor is rotated forward, and target position is when optoelectronic switch is counted as [M- (A-B)]
Put B；
If-M ＜ B-A ＜ (- M/2), the first motor reversal is target location when optoelectronic switch is counted as (A-B)
B；
If during B-A=0 or M, the first motor stops, and current location is target location B.
Further, the method for work is further comprising the steps of：
(D1) the second motor is opened, sliding block is moved to emptying position, empty keep sample water in bottle sample or rinse water.
Embodiment 2
The present embodiment provides a kind of Water quality automatic sampling device and its method of work, as different from Example 1, the present embodiment
Optoelectronic switch have two, when two optoelectronic switches are detected simultaneously by signal and one of light is established by cable within a period of time
Light detects signal in advance, then the position for judging to detect signal in advance is initial position.
Embodiment 3
Application examples of the Water quality automatic sampling device of the embodiment of the present invention 1 in water quality monitoring field.
In the application examples, Water quality automatic sampling device include the sampling pump being sequentially connected, mix bucket, for sample pump, it is described mixed
Even bucket lower section is provided with leakage fluid dram, and the confession sample pump is delivered to water sample while analyzer is analyzed by axially position by water sample
Device is delivered to the unit that keeps sample and keeps sample, and the unit that keeps sample includes at least two bottles that keep sample, the described at least two bottle placements that keep sample
On rotary positioning apparatus.The code-disc of rotary positioning apparatus is provided with multiple slits (such as 25), including 1 feature slit, its
Remaining is normal slit, and the bottle that keeps sample is placed with rotary positioning apparatus and in the corresponding position of each slit；Axial direction positioning device
It is provided with keep sample position/cleaning position and emptying position, emptying position is the lower position switch position of axial direction positioning device, the position that keeps sample/
Cleaning position is arranged between upper and lower limit bit switch.
The workflow of the Water quality automatic sampling device of the application example is as follows：
S1. sampling pump ought time water sampling to mixing bucket；
S2. will be mixed in bucket when secondary water sample exports two-way simultaneously for sample pump, analyzer analysis is delivered to all the way, conveyed all the way
To keeping sample, bottle keeps sample, and the step that keeps sample is as follows：
The vacant bottle that keeps sample is selected, target location A is designated as；
The first motor, alignment code disc spins are opened, the time that photoswitc detects signal is considerably longer than other detection letters
Number position be designated as initial position；
Target location A and code-disc digit M (i.e. slit number) is compared, if 0 ＜ A≤M/2, the first motor is rotated forward,
The as target location when optoelectronic switch is counted as A；If M/2 ＜ A ＜ M, the first motor reversal, when optoelectronic switch is counted as
(M-A) target location is when；
The second motor is opened, sliding block is moved to the position that keeps sample, sample reserving tube is into keeping sample in the vacant bottle that keeps sample；
S3. the leakage fluid dram for mixing bucket is opened, emptying starts the collection of next water sample when time water sample；Control unit judges to work as
The analysis result of secondary water sample：If water sample is exceeded, start rotary positioning apparatus, the bottle that will keep sample is transferred from axial direction positioning device lower section
Keep sample；If water sample meets standard, sliding block is moved to the lower position switch position of the axial direction positioning device, emptying is described to work as
Secondary water sample.
Claims (10)
1. a kind of Water quality automatic sampling device, it is characterised in that：The water-quality sampler includes：
Rotary positioning apparatus, the rotary positioning apparatus include actuating unit and detent mechanism, and the actuating unit includes：First
Motor, the first synchronous pulley and the first Timing Belt；The detent mechanism is further included：
Fixed block；
Swivel bearing, the swivel bearing is arranged on fixed block；
First synchronous idle pulley, the described first synchronous idle pulley is connected with first synchronous pulley by first Timing Belt,
Moved under the drive of first motor；The swivel bearing is embedded in the described first synchronous idle pulley；
Positioning code-disc, the positioning code-disc is provided with slit, the position of the slit be placed on the rotary positioning apparatus
At least two keep sample bottles one-to-one corresponding；The slit includes feature slit and normal slit, and the feature slit has and only has
One, the initial position for determining the positioning code-disc；
Optoelectronic switch, the optoelectronic switch is fixed on the fixed block, and the signal detection region of optoelectronic switch is positioned at described fixed
The edge of bit code disk, the positioning code-disc rotates under the drive of the described first synchronous idle pulley, by the optoelectronic switch to institute
Slit is stated to be positioned and counted.
2. Water quality automatic sampling device according to claim 1, it is characterised in that：The width of the feature slit is more than described
The width of normal slit.
3. Water quality automatic sampling device according to claim 2, it is characterised in that：The optoelectronic switch is one or two.
4. Water quality automatic sampling device according to claim 1, it is characterised in that：The water-quality sampler is further included：
Axial direction positioning device, the axial direction positioning device is arranged on the rotary positioning apparatus top, including：
The synchronous idle pulley of second motor, the second synchronous pulley, the second Timing Belt and second；
Slide unit, the slide unit is the moving track of sliding block, and slide unit is provided with the position that keeps sample, emptying position and cleaning position；
Sliding block, the sliding block is fixedly connected with second Timing Belt, drive of second Timing Belt in second motor
Down so that the sliding block is moved on slide unit, and then the sample reserving tube being fixed on the sliding block and cleaning pipe is driven to move up and down；
Upper and lower limit bit switch, the upper and lower limit bit switch is fixed on the slide unit, the turnover zone for limiting the sliding block
Domain.
5. Water quality automatic sampling device according to claim 4, it is characterised in that：Fixing pipe is further fixed on the sliding block,
Managed for fixing the sample reserving tube and cleaning, be easy to sample reserving tube and cleaning pipe to enter the bottle that keeps sample.
6. Water quality automatic sampling device according to claim 4, it is characterised in that：Branch road is provided with the sample reserving tube, it is described
Branch road is evacuated tube.
7. the method for work of the Water quality automatic sampling device described in a kind of claim 4, it is characterised in that：The method of work includes
Following steps：
(A1) the vacant bottle that keeps sample at least two bottles that keep sample is selected, target location A is designated as；
(A2) the first motor, alignment code disc spins are opened, the time that photoswitc detects signal is considerably longer than other detection letters
Number position be designated as initial position；
(A3) optoelectronic switch is started counting up from initial position, obtains a number of detection signal meter one, the as mesh when A is counted as
Cursor position, the first motor stalls；
(A4) the second motor is opened, sliding block is moved to the position that keeps sample, sample reserving tube is into keeping sample in the vacant bottle that keeps sample.
8. method of work according to claim 7, it is characterised in that：The method of work is further comprising the steps：
(B1) target location A is judged, if 0 ＜ A≤M/2, the first motor is rotated forward, when optoelectronic switch is counted as A i.e.
It is target location；If M/2 ＜ A ＜ M, the first motor reversal is target location when optoelectronic switch is counted as (M-A)；If A
=0 or M, then the first motor stopping, current location is target location, and M is the positional number on the positioning code-disc.
9. method of work according to claim 8, it is characterised in that：The method of work is further comprising the steps：
(C1) current location is the target location of the previous bottle that keeps sample, and target location B is navigated to from current location A, to present bit
A and target location B is put to be judged：
If 0 ＜ B-A≤M/2, the first motor is rotated forward, and target location B is when optoelectronic switch is counted as (B-A)；
If M/2 ＜ B-A ＜ M, the first motor reversal, target location B is when optoelectronic switch is counted as [M- (B-A)]；
If (- M/2)≤B-A ＜ 0, the first motor is rotated forward, and target location B is when optoelectronic switch is counted as [M- (A-B)]；
If-M ＜ B-A ＜ (- M/2), the first motor reversal is target location B when optoelectronic switch is counted as (A-B)；
If during B-A=0 or M, the first motor stops, and current location is target location B.
10. method of work according to claim 7, it is characterised in that：The photoswitc has two, when two light
Electric switch is detected simultaneously by signal within a period of time and one of photoswitc detects signal in advance, then judge to examine in advance
The position for measuring signal is initial position.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611259236.2A CN106706370A (en) | 2016-12-30 | 2016-12-30 | Automatic water quality sampler and operating method thereof |
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| CN201611259236.2A CN106706370A (en) | 2016-12-30 | 2016-12-30 | Automatic water quality sampler and operating method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844775A (en) * | 2018-05-24 | 2018-11-20 | 江西怡杉科技有限公司 | A kind of water sample distribution unit and water quality sampling equipment |
| CN112985964A (en) * | 2021-02-04 | 2021-06-18 | 科诺美(苏州)医疗器械科技有限公司 | Biological sample pretreatment system |
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Application publication date: 20170524 |