CN208443809U - A kind of pH value titrator - Google Patents
A kind of pH value titrator Download PDFInfo
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- CN208443809U CN208443809U CN201820767524.7U CN201820767524U CN208443809U CN 208443809 U CN208443809 U CN 208443809U CN 201820767524 U CN201820767524 U CN 201820767524U CN 208443809 U CN208443809 U CN 208443809U
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Abstract
The utility model relates to titration device fields, disclose a kind of pH value titrator, including pedestal, solution bottle, aspirator, the titration component that is fixed on aspirator and for test sample liquid pH value detector and fill the titration sample bottle of sample liquid, solution bottle, aspirator, titration component and detector are sequentially communicated, it is provided with vibrator on aspirator and accepts component, accept the current limiting plate that component includes the titer plate being rotatably connected on aspirator and is rotatably arranged on titer plate, current limiting slot is opened up on current limiting plate, when buret stops titration, rotation current limiting plate makes current limliting slot be directed at buret, vibrator works, titrating solution remaining on buret is shaken off in current limliting slot, titrating solution is avoided to drop onto sample liquid and influence the pH value measurement accuracy to sample liquid.
Description
Technical field
The utility model relates to titration device fields, more specifically, it relates to a kind of pH value titrator.
Background technique
PH analyzer is a kind of common instrument and equipment, is mainly used to the pH value of accurate measurement liquid medium, mixes
Corresponding ion-selective electrode can also measure ion electrode current potential MV value, be widely used in industry, agricultural, scientific research, environmental protection etc.
Field, and the pH value titrator in laboratory needs higher the degree of automation and precision because of the reason of scientific research.
A kind of automatical potentiometric titrimeter as disclosed in the Chinese patent that patent announcement number is CN105806994B, including control
Device, titrator and titration area, the outer surface of titrator are provided with electric connection line, and controller, which is mounted on, to be electrically connected on line,
The rear end of titrator is provided with fixed link, and fixing head is mounted on the top of fixed link, and the right end of fixing head is connected with solenoid valve, drop
Determine pipe to be mounted on solenoid valve, the right end of solenoid valve is connected with electrode fixed frame, and instruction electricity is welded with below electrode fixed frame
The top in titration area is arranged in pole and reference electrode, buret, indicator electrode and reference electrode, and titrator is arranged in titration area
Solution to be measured need to be only placed in specific bottle by upper surface, user, be then placed within the top in titration area, titrator is just
It can automatically begin to titrate, can be automatically closed when titrating and completing, high degree of automation.
However, buret is close to one end of solution to be measured after the buret in above-mentioned patent receives stopping titration signal
The drop not dripped may be remained, drop can drop onto solution to be measured because of the vibration of titrator, to influence in experiment
To the pH value measurement accuracy of solution to be measured.
Utility model content
It is easy to drop onto the technical problem in sample liquid for titrating solution is remained on existing buret, the utility model mentions
For a kind of pH value titrator, titrating solution is avoided to drop into residual titrating solution on collection buret excellent in sample liquid
Point.
To achieve the above object, the utility model provides following technical solution:
A kind of pH value titrator, including pedestal, fixed solution bottle and aspirator on the base, which is characterized in that
Further include the titration component being fixed on the aspirator and for test sample liquid pH value detector and fill sample
The titration sample bottle of product liquid；
The solution bottle, the aspirator, the titration component and the detector are sequentially communicated, and the detector is stretched
Enter in the titration sample bottle；
It is detachably connected on the aspirator and is provided with vibrator and accepts component, the undertaking component includes that rotation connects
It connects and is offered on the titer plate on the aspirator and the current limiting plate being rotatably arranged on the titer plate, the current limiting plate
Current limliting slot.
Through the above technical solutions, aspirator is dripped from solution bottle absorbs titrating solution, titrating solution is then transported to titration
Guan Zhong titrates the sample liquid in titration sample bottle via buret, and the PH of detectors measure sample liquid reaches specified pH value
Afterwards, aspirator stops imbibition, and rotation current limiting plate makes current limliting slot be directed at buret, vibrator works, by drop remaining on buret
Determine liquid to shake off in current limliting slot, titrating solution is avoided to drop onto sample liquid and influence the pH value measurement accuracy to sample liquid.
Further, connecting tube, the one end of the connecting tube far from the aspirator are fixedly connected on the aspirator
Grafting is arranged in the solution bottle；
The titration component includes the solution hose being fixedly connected on the aspirator and removable with the solution hose
The buret of connection is unloaded, the buret is detachably connected on the titer plate；
It is fixedly connected with the stepper motor by being controlled by the detector drive on the titer plate, is passed through on the titer plate
Wear the rotation axis for being equipped with and being fixedly connected with the stepper motor, the one end of the rotation axis far from the stepper motor with it is described
Current limiting plate is fixedly connected.
Through the above technical solutions, aspirator is dripped from solution bottle by connecting tube absorbs titrating solution, then by titrating solution
It is transported in buret by solution hose, when buret stops titration, stepper motor starts and current limiting plate rotation is driven to make to limit
Chute is directed at buret, and vibrator works, titrating solution remaining on buret is shaken off in current limliting slot, titrating solution is avoided at this time
It drops onto sample liquid and influences the pH value measurement accuracy to sample liquid.
Further, the titer plate be fixedly connected on one side for limiting the current limiting plate close to the titration sample bottle
The limited block of rotation, the detector are fixedly connected on the limited block close to one end of the pedestal.
Through the above technical solutions, limited block can stop current limiting plate excessively to rotate and avoid current limiting plate that from could not being directed at titration
The case where pipe, will test device and be mounted on limited block, just with detectors measure sample liquid pH value.
Further, the connection that the buret is fixedly connected with total axial line far from one end of the titration sample bottle is convex
Ring, the solution hose are fixedly connected with the compression ring of total axial line far from one end of the aspirator, cover on the compression ring
Equipped with it is described be connected to bulge loop threaded connection locating piece, the locating piece far from it is described connection bulge loop one end be fixedly connected with
Annular lug for being pressed on the compression ring on the connection bulge loop；
The compression ring is fixedly connected with the sealing ring of total axial line close to one end of the connection bulge loop.
Through the above technical solutions, unscrewing or screwed in place part, presses compression ring or far from connection bulge loop, be convenient for work
Solution hose is removed or is installed from buret by personnel, while being convenient for the replacement of buret, and solution hose can be improved in sealing ring
Leakproofness between buret avoids titrating solution from leaking out from the junction of buret and solution hose.
Further, the aspirator offers lifting groove far from the pedestal on one side, and the undertaking component includes inserting
Connect the support column and gag lever post being fixed in the lifting groove, the one end of the support column far from the pedestal and the titer plate
It is fixedly connected；
The aspirator side, which is offered, is plugged and fixed limiting slot for the gag lever post, and the gag lever post lateral surface fixation is set
It is equipped with limit double wedge, the support column lateral surface is fixedly installed the limiting groove with the limit convex tooth engagement；
The gag lever post is fixedly connected with the positioning for limiting the gag lever post rotation close to one end of the limiting slot
Block, the limit trench bottom offer the locating slot to match with the locating piece, and the gag lever post is far from the locating piece
One end is fixedly connected with the rotating disc of total axial line.
Through the above technical solutions, pulling out simultaneously rotary stopper bar, limit double wedge engages rotation with limiting groove, makes to limit
Position bar driving support column slides together with titer plate along lifting groove up and down, realizes that the height of titer plate and buret is adjustable, and height is really
While determining, pushes the locating piece of limit boom end to be embedded in locating slot, gag lever post can not be rotated, thus by the height of support column
It is fixed, it avoids titer plate from making buret and the collision of titration sample bottle due to gravity factor falls and damage, rotary motion disk, makes work
It is more laborsaving and convenient when personnel's rotary stopper bar.
Further, sliding is provided with rotating bar, axial line of the rotating bar along the support column in the titer plate
It is threadedly coupled with the support column far from the one side of the pedestal, the rotating bar is fixedly connected with far from one end of the pedestal
The compact heap abutted with the titer plate.
Through the above technical solutions, unscrewing rotation bar, compact heap are separated with titer plate, titer plate is rotated around rotating bar, just
It is directed at titration sample bottle in the position that staff adjusts buret, tightens rotating bar, titer plate is pressed on by compact heap
On support column, so that titer plate be fixed.
Further, the titer plate offers dropper slot, the dropper slot interpolation along the direction perpendicular to the pedestal
It connects and is fixed with the buret, the titer plate flank threads are connected with positioning bolt, and the positioning bolt passes through the titration
Plate is abutted with the buret side wall.
Through the above technical solutions, screwed in place bolt, abuts against one end with titration pipe outer wall, buret is fixed
On titer plate, unscrew positioning bolt, buret can be unloaded from support plate, is installed convenient for the replacement of buret.
Further, the positioning bolt is fixedly connected with retaining spring, the positioning close to one end of the buret
Spring is fixedly connected with the positioning knee-piece to match with the buret side wall far from one end of the positioning bolt.
Through the above technical solutions, screwed in place bolt, makes positioning bolt squeeze compression set spring, retaining spring is to calmly
Position knee-piece applies elastic force, and positioning curved surface is made to press positioning pipe, because the contact area of positioning curved surface and buret is big, to make to titrate
It is small to manage suffered pressure, avoids positioning bolt by appearance the case where buret attrition crushing.
Further, the titer plate is fixedly connected with stirring motor, the stirring motor close to the pedestal on one side
One end close to the pedestal is fixedly connected with stirring flabellum.
Through the above technical solutions, stirring motor driving stirring flabellum exists while buret titrates sample liquid
It is stirred in sample liquid, titrating solution is made to dissolve in sample liquid faster, keep detector more accurate to the variation detection of sample liquid pH value,
The measurement accuracy of pH value titrator is also improved simultaneously.
Further, drying tube is provided on the solution bottle, the drying tube is opened up far from one end of the solution bottle
There is air inlet, is fixedly installed dried object inside the drying tube；
The drying tube is fixedly connected with sieve plate close to one end of the solution bottle, and supplied gas stream is offered on the sieve plate
Dynamic sieve pore is fixed with Packing spring on the sieve plate, and the Packing spring is fixedly connected with close far from one end of the sieve plate
Sealing plate offers air groove on the drying inside pipe wall between the sealing plate and sieve plate.
Through the above technical solutions, when titrating solution is sucked out aspirator from solution bottle, air pressure decline and low in solution bottle
In atmospheric pressure, outside air enters dried object through air inlet, dried object by moisture absorption, avoid moisture in outside air into
Enter titrating solution to change titrating solution concentration and influence measurement accuracy, outside air squeezes sealing plate when entering solution bottle, makes sealing plate
Compression seal spring, dry outside air enter in solution bottle from air groove via sieve pore.It is close when aspirator stops imbibition
Spring reset is sealed, sealing plate seal gas slot avoids moisture in titrating solution from evaporating from drying tube and change titrating solution concentration.
Compared with prior art, the utility model has the beneficial effects that
(1) vibrator and be used for access simultaneously that drop shakes off will be remained on buret by being fixedly connected on titer plate
The current limliting slot of storage residual drop, avoids titrating solution from dropping onto sample liquid and influence the pH value measurement accuracy to sample liquid；
(2) by, it can be achieved that the height of buret is adjustable, by unscrewing and tightening compact heap, being convenient for work in rotary stopper
Making personnel's adjusting buret is directed at it with titration sample bottle.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the A direction view of Fig. 1；
Fig. 3 is the rearview of the utility model；
Fig. 4 is the B-B direction cross-sectional view of Fig. 3；
Fig. 5 is the C-C of Fig. 3 to cross-sectional view；
Fig. 6 is the cross-sectional view of drying tube；
Fig. 7 is the cross-sectional view of dropper slot.
Appended drawing reference: 1, pedestal；2, solution bottle；21, drying tube；211, air inlet；212, dried object；213, sieve plate；
214, sieve pore；215, Packing spring；216, sealing plate；217, air groove；3, aspirator；31, lifting groove；32, limiting slot；321,
Locating slot；33, connecting tube；4, component is accepted；41, titer plate；411, stepper motor；412, current limiting plate；413, current limliting slot；414,
Rotation axis；415, compact heap；416, dropper slot；417, positioning bolt；418, retaining spring；419, knee-piece is positioned；42, it rotates
Bar；43, limited block；44, support column；441, limiting groove；45, gag lever post；451, double wedge is limited；452, locating piece；453, turn
Moving plate；46, stirring motor；461, flabellum is stirred；5, vibrator；6, sample bottle is titrated；7, detector；8, component is titrated；81, solution
Hose；811, compression ring；812, locating piece；813, annular lug；814, sealing ring；82, buret；821, it is connected to bulge loop.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
A kind of pH value titrator, as shown in Figure 1, including pedestal 1, the solution bottle for filling titrating solution being fixed on pedestal 1
2, the aspirator 3 that is fixed on pedestal 1 is fixed at titration component 8 of the aspirator 3 far from 2 side of solution bottle and fills sample
The titration sample bottle 6 of product liquid and detector 7 for test sample liquid pH value are fixedly connected with for absorbing drop on aspirator 3
Determine the connecting tube 33 of liquid and the undertaking component 4 for fixed titration component 8, titration component 8 includes being fixedly connected on aspirator 3
Solution hose 81 and be detachably connected on buret 82 of the solution hose 81 far from 3 one end of aspirator.Connecting tube 33 is far from suction
In one end insertion solution bottle 2 of liquid device 3, aspirator 3 inhales fortune titrating solution and titrating solution is transported to titration by solution hose 81
In pipe 82.
As shown in Fig. 2, accepting component 4 is fixedly connected with the titer plate 41 parallel with pedestal 1 far from the side of aspirator 3,
Buret 82 is detachably connected on titer plate 41, and vibrator 5 is fixedly connected on titer plate 41, fixed on titer plate 41 to connect
It is connected to the stepper motor 411 of examined 7 drive control of device, detector 7 is fixedly connected on limited block 43 close to sample liquid one end, drop
Fixed board 41 is provided with rotation axis 414 far from extending vertically through on one side for pedestal 1, the one end of rotation axis 414 far from pedestal 1 and stepping electricity
Machine 411 is fixedly connected, and rotation axis 414 is fixedly connected with the current limiting plate 412 parallel with pedestal 1 far from one end of stepper motor 411,
And current limliting slot 413 is opened up on current limiting plate 412, buret 82 detects that target ph is backward to sample drop timing, detector 7
Stepper motor 411 issue signal, stepper motor 411 rotate and drive current limiting plate 412 rotate and be fixedly connected on titer plate 41
Limited block 43 close to the one side of titration sample bottle 6 abuts, and after keeping limiting slot 32 fixed and being directed at buret 82, starts vibrator 5,
Titration drop remaining on buret 82 is shaken off in current limliting slot 413, titrating solution is avoided to drop onto sample liquid and influence pair
The pH value measurement accuracy of sample liquid.
For convenient for buret 82 is mounted on titer plate 41, as shown in fig. 7, dropper slot 416 is opened up on titer plate 41,
82 grafting of buret is arranged in dropper slot 416, and connects positioning bolt 417, positioning bolt in 41 sidewall thread of titer plate
417 pass through titer plate 41 abuts with buret 82, and buret 82 can be fixed in dropper slot 416 by screwed in place bolt 417, be twisted
Loose positioning bolt 417, can buret 82 unloaded from titer plate 41.To avoid positioning bolt 417 during tightening
Buret 82 is squeezed broken, is fixedly connected with retaining spring 418, retaining spring 418 close to one end of buret 82 in positioning bolt 417
One end of remotely located bolt 417 is fixedly connected with positioning knee-piece 419, and screwed in place bolt 417, retaining spring 418, which is pressurized, to be tightened
Backward positioning curved surface applies elastic force, makes to position curved surface and is bonded abutting with buret 82, and contact area is bigger, fix it is stronger and
And it is not easy to squeeze broken buret 82.
For buret 82 is unloaded or installed from solution hose 81 convenient for staff, as shown in Fig. 3,5, in buret
82 one end far from titration sample bottle 6 are fixedly connected with the connection bulge loop 821 of total axial line, in solution hose 81 close to buret 82
One end is fixedly connected with the compression ring 811 of total axial line, is arranged with locating piece 812 on solution hose 81, locating piece 812 be connected to it is convex
Ring 821 is threadedly coupled.Connection bulge loop 821 is abutted with compression ring 811, locating piece 812 is screwed, makes to be fixedly connected on locating piece
The extruding of compression ring 811 is fixed on connection bulge loop 821 by 812 annular lugs 813 far from connection 821 one end of bulge loop, thus will
Solution hose 81 is detachably connected on buret 82.It is fixedly connected in the side of the close connection bulge loop 821 of compression ring 811 coaxial
The sealing ring 814 of heart line improves the leakproofness between solution hose 81 and buret 82, avoids titrating solution from 81 He of solution hose
The junction of buret 82 leaks out.
Position in order to realize buret 82 is adjustable, as shown in figure 4, accepting component 4 further includes support column 44 and gag lever post
45, aspirator 3 offers the lifting groove 31 being plugged and fixed for support column 44 far from pedestal 1 on one side, and 3 side of aspirator offers
For the limiting slot 32 that gag lever post 45 is plugged and fixed, the one end of support column 44 far from pedestal 1 and titer plate 41 are rotatablely connected.It is limiting
45 lateral surface of bar fixed setting limit double wedge 451, and the limit engaged in the fixed setting of 44 lateral surface of support column with limit double wedge 451
Position groove 441, rotary stopper bar 45 make limit double wedge 451 engage rotation with limiting groove 441, make support column 44 along lifting groove
31 slidings, to keep the height of buret 82 adjustable, are fixedly connected with total axial line far from one end of aspirator 3 in gag lever post 45
Rotating disc 453 is adjusted staff's rotary stopper bar 45 to support column 44 more convenient.It is inserted into and limits in gag lever post 45
One end of slot 32 is fixedly connected with cross locating piece 452, and opens up in 32 bottom of limiting slot and determine with what locating piece 452 matched
After the height adjustment of buret 82 determines, gag lever post 45, the insertion positioning of locating piece 452 are elapsed into locating slot 321 for position slot 321
Slot 321 continue to rotate gag lever post 45 can not, so that support column 44 is fixed in lifting groove 31.It is slided in titer plate 41
It is provided with and is connect with support column 44 far from the threaded one end of pedestal 1 with rotating bar 42, rotating bar 42 along the axial line of support column 44,
And be fixedly connected with compact heap titer plate 41 being pressed abd fixed on support column 44 far from one end of support column 44 in rotating bar 42
415.Unscrew rotating bar 42, and rotate titer plate 41 around rotating bar 42, titer plate 41 is made to drive buret 82 in the horizontal direction
Displacement is generated, convenient for the alignment titration sample bottle 6 of buret 82.
It is fixedly connected with stirring motor 46 on one side close to pedestal 1 in titer plate 41, stirring motor 46 is close to one end of pedestal 1
It is fixedly connected with the stirring flabellum 461 for stirring sample liquid, when buret 82 titrates sample liquid, stirring motor 46 is driven
Stirring flabellum 461 stirs sample liquid, and titrating solution is accelerated to dissolve in sample liquid, more accurately judges sample convenient for detector 7
The real-time change of the pH value of product liquid makes titration results more in order to which aspirator 3 stops conveying titrating solution into buret 82 in time
Add accurate.
As shown in fig. 6, being provided with drying tube 21 on solution bottle 2, drying tube 21 offers air inlet far from one end of solution bottle 2
Mouthfuls 211, the dried object 212 for absorbing moisture in outside air is fixedly installed inside drying tube 21, drying tube 21 is close to molten
One end of liquid bottle 2 is fixedly connected with sieve plate 213, offers the sieve pore 214 passed through for outside air on sieve plate 213, on sieve plate 213
It is fixed with Packing spring 215, Packing spring 215 is fixedly connected with sealing plate 216,216 He of sealing plate far from one end of sieve plate 213
Air groove 217 is offered on 21 inner wall of drying tube between sieve plate 213.Aspirator 3 is drawing titrating solution among solution bottle 2
When, air pressure decline and subatmospheric strong in solution bottle 2, outside air through air inlet 211 enters dried object 212 and by dried object
212 absorb moisture, avoid the moisture in outside air from entering titrating solution and change titrating solution concentration and influence measurement accuracy, extraneous empty
Gas squeezes sealing plate 216 when entering solution bottle 2, and 216 compression seal spring 215 of sealing plate is made to keep sealing plate 216 not empty in sealing
Air drain 217, dry outside air enters in solution bottle 2 via sieve pore 214 again from air groove 217, while guaranteeing aspirator 3
Normal imbibition.When aspirator 3 stops imbibition, air pressure recovery is stretched Packing spring 215 naturally and is resetted in solution bottle 2, pushes away
216 seal gas slot 217 of dynamic sealing plate avoids moisture in titrating solution from evaporating from drying tube 21 and change titrating solution concentration,
And then titrating solution concentration is avoided to increase and measurement accuracy is made to be affected.
The working principle of the utility model is: the titrating solution being contained in solution bottle 2 passes through connecting tube 33 via aspirator 3
After absorption, titrating solution is transported in buret 82 by aspirator 3, and by buret 82 to the sample being contained in titration sample bottle 6
Liquid is titrated, and the vibrator 5 and be used for access that drop shakes off will be remained by being fixedly connected on titer plate 41 on buret 82
And the current limliting slot 413 of residual drop is stored, it can be dropped onto avoid titrating solution in sample liquid and influence to survey the pH value of sample liquid
Determine precision, by rotary stopper bar 45, it can be achieved that the height of buret 82 is adjustable, then by unscrewing and tightening compact heap 415, just
Adjusting buret 82 in staff is directed at it with titration sample bottle 6.Meanwhile the stirring flabellum 461 being arranged on titer plate 41
It can be conducive to the quick dissolution of titrating solution, convenient for real-time detection and the time for judging the stopping imbibition of aspirator 3 of detector 7, make
Titration work is more accurate, is conducive to the precision for improving the utility model.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of pH value titrator, including pedestal (1), the solution bottle (2) and aspirator (3) that are fixed on the pedestal (1),
It is characterized in that, further includes the titration component (8) being fixed on the aspirator (3) and the inspection for test sample liquid pH value
It surveys device (7) and fills the titration sample bottle (6) of sample liquid；
The solution bottle (2), the aspirator (3), the titration component (8) and the detector (7) are sequentially communicated, described
Detector (7) protrudes into the titration sample bottle (6)；
It is detachably connected on the aspirator (3) and is provided with vibrator (5) and accepts component (4), undertaking component (4) packet
Include the titer plate (41) being rotatably connected on the aspirator (3) and the current limiting plate being rotatably arranged on the titer plate (41)
(412), current limiting slot (413) are opened up on the current limiting plate (412).
2. pH value titrator according to claim 1, which is characterized in that be fixedly connected with connection on the aspirator (3)
It manages (33), one end grafting setting of the connecting tube (33) far from the aspirator (3) is in the solution bottle (2)；
Titration component (8) includes the solution hose (81) that is fixedly connected on the aspirator (3) and soft with the solution
The buret (82) that pipe (81) is detachably connected, the buret (82) are detachably connected on the titer plate (41)；
It is fixedly connected on the titer plate (41) by the stepper motor (411) by the detector (7) drive control, the drop
The rotation axis (414) being fixedly connected with the stepper motor (411), the rotation axis (414) are provided through on fixed board (41)
One end far from the stepper motor (411) is fixedly connected with the current limiting plate (412).
3. pH value titrator according to claim 2, which is characterized in that the titer plate (41) is close to the titration sample bottle
(6) the limited block (43) being fixedly connected on one side for limiting the current limiting plate (412) rotation, the detector (7) are fixed
It is connected to the one end of the limited block (43) close to the pedestal (1).
4. pH value titrator according to claim 3, which is characterized in that the buret (82) is far from the titration sample bottle
(6) one end is fixedly connected with the connection bulge loop (821) of total axial line, and the solution hose (81) is close to the buret (82)
One end be fixedly connected with the compression ring (811) of total axial line, be arranged on the compression ring (811) and be connected to bulge loop with described
(821) locating piece (812) being threadedly coupled, the locating piece (812) are fixedly connected far from one end of connection bulge loop (821)
There are the annular lug (813) for being pressed on the compression ring (811) on connection bulge loop (821), the compression ring
(811) sealing ring (814) of total axial line is fixedly connected with close to one end of connection bulge loop (821).
5. pH value titrator according to claim 1, which is characterized in that the aspirator (3) is far from the pedestal (1)
It offers on one side lifting groove (31), undertaking component (4) further includes the support column being plugged and fixed in the lifting groove (31)
(44) it is fixedly connected far from the one end of the pedestal (1) with the titer plate (41) with gag lever post (45), the support column (44)；
Aspirator (3) side is offered to be plugged and fixed limiting slot (32) for the gag lever post (45), the gag lever post (45)
Lateral surface is fixedly installed limit double wedge (451), and support column (44) lateral surface is fixedly installed and the limit double wedge
(451) limiting groove (441) engaged；
The gag lever post (45) is fixedly connected with close to the one end of the limiting slot (32) to be turned for limiting the gag lever post (45)
Dynamic locating piece (452), limiting slot (32) bottom offer the locating slot (321) to match with the locating piece (452)；
The gag lever post (45) is fixedly connected with the rotating disc (453) of total axial line far from the one end of the locating piece (452).
6. pH value titrator according to claim 5, which is characterized in that sliding is provided with rotation in the titer plate (41)
Bar (42), the rotating bar (42) is along the axial line of the support column (44) and the support column (44) far from the pedestal (1)
One side be threadedly coupled, the rotating bar (42) is fixedly connected with and the titer plate (41) far from the one end of the pedestal (1)
The compact heap (415) of abutting.
7. pH value titrator according to claim 2, which is characterized in that the titer plate (41) is along perpendicular to the pedestal
(1) direction offers dropper slot (416), and the interior grafting of the dropper slot (416) is fixed with the buret (82), the titration
Plate (41) flank threads are connected with positioning bolt (417), and the positioning bolt (417) passes through the titer plate (41) and the drop
Fixed pipe (82) side wall abuts.
8. pH value titrator according to claim 7, which is characterized in that the positioning bolt (417) is close to the titration
One end of pipe (82) is fixedly connected with retaining spring (418), and the retaining spring (418) is far from the positioning bolt (417)
One end is fixedly connected with the positioning knee-piece (419) to match with the buret (82) side wall.
9. pH value titrator according to claim 1, which is characterized in that the titer plate (41) is close to the pedestal (1)
Be fixedly connected on one side stirring motor (46), the stirring motor (46) is fixedly connected with close to the one end of the pedestal (1)
It stirs flabellum (461).
10. pH value titrator according to claim 1, which is characterized in that be provided with drying tube on the solution bottle (2)
(21), the drying tube (21) offers air inlet (211) far from the one end of the solution bottle (2), in the drying tube (21)
Portion is fixedly installed dried object (212)；
The drying tube (21) is fixedly connected with sieve plate (213) close to the one end of the solution bottle (2), on the sieve plate (213)
The sieve pore (214) of supplied gas flowing is offered, is fixed with Packing spring (215), the Packing spring on the sieve plate (213)
(215) one end far from the sieve plate (213) is fixedly connected with sealing plate (216), the sealing plate (216) and sieve plate (213)
Between drying tube (21) inner wall on offer air groove (217).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820767524.7U CN208443809U (en) | 2018-05-22 | 2018-05-22 | A kind of pH value titrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820767524.7U CN208443809U (en) | 2018-05-22 | 2018-05-22 | A kind of pH value titrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208443809U true CN208443809U (en) | 2019-01-29 |
Family
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112782342A (en) * | 2020-12-29 | 2021-05-11 | 南京普来森仪器有限公司 | Equipment for realizing automatic titration by adopting temperature |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112782342A (en) * | 2020-12-29 | 2021-05-11 | 南京普来森仪器有限公司 | Equipment for realizing automatic titration by adopting temperature |
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