CN207056463U - A kind of titration stand - Google Patents
A kind of titration stand Download PDFInfo
- Publication number
- CN207056463U CN207056463U CN201720972929.XU CN201720972929U CN207056463U CN 207056463 U CN207056463 U CN 207056463U CN 201720972929 U CN201720972929 U CN 201720972929U CN 207056463 U CN207056463 U CN 207056463U
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- CN
- China
- Prior art keywords
- rotating disk
- lifting platform
- titration
- rotating shaft
- lever
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- 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.)
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model discloses a kind of titration stand, its drip irrigation device is, also include the hollow lifting platform that activity is set, some guide pillars are vertically installed with the bottom plate, the top of the guide pillar is inserted into lifting platform, and the bottom surface of the lifting platform is provided with the first drive mechanism for driving the lifting of lifting table；Rotating shaft is provided with the center of the lifting countertop, one end of the rotating shaft is extend into the lifting platform, and the second drive mechanism rotated for drive shaft is provided with the lifting platform；The other end of the rotating shaft is provided with rotating disk, and the rotating shaft is set perpendicular to the bottom surface of rotating disk；The tie point of the rotating shaft and rotating disk is located between the center of circle and edge of rotating disk, and fixing point deviates the radius of the distance less than titration bottle opening in the rotating disk center of circle；The top surface of the rotating disk is provided with the fixed mechanism for fixing titration bottle.It has rocks titration bottle, without manually rocking the advantage with regard to that can be sufficiently mixed solution in titration bottle automatically.
Description
Technical field
A kind of chemical experiment device is the utility model is related to, more particularly to a kind of titration stand.
Background technology
Titration stand is a kind of common chemical experimental unit, and it is mainly used to fix buret, to carry out titration operation.
The Chinese patent that existing Authorization Notice No. is CN205199548U discloses a kind of dual-purpose acid base titration frame, including drop
Determine platform, the pillar that heavily fortified point is stood on titration platform, the titration that being clamped on pillar and can move up and down along it is pressed from both sides, buret, conical flask,
Also include a L types titration stand that can clamp titration folder and the slip with fastening bolt for being fixed on pillar
Cuff.
But using this titration stand carry out titration operation when, it is necessary to hand-held conical flask be used, by being fixed on titration stand
Buret instills liquid into conical flask, needs constantly to rock conical flask during operation so that liquid is sufficiently mixed.No
Same burette test, the speed of titration is different, and the whether well mixed accuracy for also influencing whether measurement result of liquid, thus
Titration operation is carried out using above-mentioned titration platform, inconvenience be present.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of titration stand, it has automatic
Rock titration bottle, without manually rocking the advantage with regard to solution in titration bottle can be sufficiently mixed.
To achieve the above object, the utility model provides following technical scheme：
A kind of titration stand, including bottom plate, montant and buret clamp, the montant are vertically set on the side of the bottom plate,
Also include the hollow lifting platform that activity is set, be vertically installed with some guide pillars on the bottom plate, the top of the guide pillar is inserted
Enter into lifting platform, the bottom surface of the lifting platform is provided with the first drive mechanism for driving the lifting of lifting table；It is described
Lift and be provided with rotating shaft at the center of countertop, one end of the rotating shaft extend into the lifting platform, set in the lifting platform
It is equipped with the second drive mechanism rotated for drive shaft；The other end of the rotating shaft is provided with rotating disk, and the rotating shaft is vertical
Set in the bottom surface of rotating disk；The tie point of the rotating shaft and rotating disk is located between the center of circle and edge of rotating disk, and fixing point deviates
The distance in the rotating disk center of circle is less than the radius of titration bottle opening；The top surface of the rotating disk is provided with the fixation machine for fixing titration bottle
Structure.
By using above-mentioned technical proposal, when carrying out titration operation, titration bottle is fixed on rotating disk by fixed mechanism.
Rotated by the second drive mechanism drive shaft, rotating shaft drives rotating disk to rotate, and titration bottle rotates with the rotation of rotating disk.Rotating shaft with
The tie point of rotating disk deviates the center of circle of rotating disk so that rotating disk is rotated using rotating shaft as axle rather than with its own center line, is served
Liquid in titration bottle is rocked, reaches well mixed purpose.The distance that rotating shaft deviates the rotating disk center of circle is less than the half of titration bottle opening
Footpath so that the part that buret is extend into titration bottle in titration process will not encounter the side wall of titration bottle.In hoistable platform
Under the first drive mechanism driving of bottom surface, make the periodic raising and lowering of lifting platform, and then titration bottle is teetertottered, add
It is strong that immixture is rocked to liquid.Guide pillar serves guide effect to the lifting moving of lifting platform.
Further, first drive mechanism includes the elastic component being set on the guide pillar, described elastic component one end
It is fixed on bottom plate, the other end is fixed on the bottom surface of lifting platform；Also include being arranged on the cam of lifting platform bottom surface and be arranged on institute
The support on bottom plate is stated, on center shaft, the central shaft is movably arranged on support and central shaft for the cam fixed setting
End set have an actuator for driving central axis, when the projection of the cam turns to top and lifting platform
Bottom surface offset.
By using above-mentioned technical proposal, actuator driving centre axis moving cam rotates, the projection cycle of cam
Property pushes the bottom surface of lifting platform so that lifting platform periodicity rise and fall, to reach the purpose for the titration bottle that teetertotters.Elastic component
It is engaged with guide pillar so that lifting platform can only move up and down along guide pillar, and without departing from guide pillar.
Further, the actuator is the motor for being arranged on the center shaft end.
By using above-mentioned technical proposal, motor is easy for installation, easily controllable, convex by controlling rotating speed to adjust
The rotating speed of wheel, and then change the frequency of lifting platform rise and fall, the liquid in titration bottle is played and different degrees of rocks mixing
Effect.
Further, second drive mechanism includes being fixedly installed on the spine that the rotating shaft is located at one end in lifting platform
Wheel, and it is movably set with lever in the rotating shaft；One end is provided with the lever to be articulated with lever, the other end is stuck in ratchet
Ratchet, the lever and ratchet realize that one end of ratchet is stuck in ratchet using elastic spacing mechanism；The end of the lever
Set promising lever to provide the push-pull mechanism of push-and-pull power, and push-and-pull power is passed to by ratchet by lever.
By using above-mentioned technical proposal, when push-pull mechanism provides thrust, thrust is passed to ratchet by lever, and ratchet promotes
Pawl wheel, and then drive shaft rotates；When push-pull mechanism provides pulling force, ratchet unclamps ratchet.Utilize lever principle, push-and-pull machine
Structure only needs to produce less thrust can promotion axis of rotation.
Further, the lever is connected with two push-pull mechanisms, two ratchets and a rotating shaft, from one end of lever to
Other end, is sequentially connected push-pull mechanism, ratchet, rotating shaft, ratchet and push-pull mechanism, and the push-pull mechanism can discharge thrust simultaneously
Or pulling force.
By using above-mentioned technical proposal, rotated, can provided bigger using two groups of push-pull mechanisms and ratchet driving pawl
Motive force.
Further, the push-pull mechanism is hydraulic cylinder.
By using above-mentioned technical proposal, hydraulic cylinder small volume, it is easily installed, and caused thrust is big, and it is easy to control.
Further, the fixed mechanism includes the fixing groove being arranged on the rotating disk and circumference array is arranged on rotating disk
The pillar of top surface, the one end of the pillar away from rotating disk are provided with the inserting column that diameter is less than pillar；Rotation is provided with the inserting column
Button；The fixed mechanism also includes being provided with and titrating with the rotating disk shape identical fixed plate, the circle centre position of the fixed plate
Bottle bottleneck external diameter identical fixing port, and the upper shed of fixed plate supplies the jack of inserting column insertion.
By using above-mentioned technical proposal, after in the fixing groove on the bottom insertion rotating disk of titration bottle, stretch into bottleneck
Into fixing port, fixed plate is enclosed on to the bottle mouth position of titration bottle.Rotate fixed plate to adjust to suitable position, make pillar top
Jack in inserting column insertion fixed plate, then screws on knob, be tightened fixed plate on inserting column.Titration bottle is securely held
Between fixed plate and rotating disk, it will not be thrown out of with the rotation of rotating disk.
Further, the first elastic washer is provided with the fixing groove, second is provided with the side wall of the fixing port
Elastic washer.
By using above-mentioned technical proposal, elastic washer can avoid titration bottle and fixing port, the rigid contact of fixing groove,
Serve the effect of increase friction simultaneously, reduce titration bottle because it is fixed loosely and caused by rock, guarantor is served to titration bottle
Shield acts on.
Further, the fixed plate is made of transparent plastic.
By using above-mentioned technical proposal, the fixed plate of transparent plastics material, will not obstruct the view, person's observation easy to operation
The change of solution colour in titration bottle, to determine titration end-point.
In summary, the utility model has the advantages that：
1st, in the presence of the first drive mechanism, lifting platform periodically moves up and down, and has reached and has teetertottered in titration bottle
The purpose of solution；
2nd, the tie point of rotating shaft and rotating disk is the center of circle for deviateing rotating disk, under the driving of the second actuator, rotating shaft band turn
Disk rotates, and is fixed on the titration bottle concomitant rotation of rotating disk top surface, the cooperation up and down with lifting platform, realizes to solution in titration bottle
Vertical and horizontal direction rock, reached the purpose of automatic mixed solution, rocked without operator titration bottle mixing manually
Solution；
3rd, fixed mechanism is firm to the fixation of titration bottle, and titration bottle will not drop in operating process again.
Brief description of the drawings
Fig. 1 is that titration stand installs the working condition chart after titration bottle in embodiment；
Fig. 2 is the explosive view of titration stand in embodiment；
Fig. 3 is the enlarged drawing of part A in Fig. 2；
Fig. 4 is the sectional view of embodiment turntable and fixed mechanism；
Fig. 5 is the sectional view of titration stand in embodiment.
In figure：1st, bottom plate；11st, support；12nd, motor；2nd, montant；21st, buret clamp；3rd, lifting platform；31st, guide pillar；
311st, elastic component；32nd, lever；321st, ratchet；33rd, hydraulic cylinder；4th, rotating shaft；41st, ratchet；5th, rotating disk；51st, fixing groove；511st,
One elastic washer；52nd, pillar；521st, inserting column；5211st, knob；6th, cam；61st, central shaft；7th, fixed plate；71st, fixing port；
711st, the second elastic washer；72nd, jack；8th, titration bottle.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment：
A kind of titration stand, referring to Figures 1 and 2, it includes bottom plate 1, lifting platform 3 and montant 2, and montant 2 is vertically arranged in bottom
The side of plate 1, there is the buret clamp 21 for fixing buret on montant 2.The corner of bottom plate 1 is vertically arranged with guide pillar 31, leads
Elastic component 311 is arranged with post 31, lifting platform 3 is set parallel to bottom plate 1.One end of elastic component 311 is fixed on bottom plate 1, separately
One end is fixed on the bottom surface of lifting platform 3.
Reference picture 2 and Fig. 3, the lower section of bottom plate 1 are provided with cam 6, and cam 6 is fixedly installed on central shaft 61.Central shaft
61 are set by support 11 parallel to bottom plate 1, and the end set of central shaft 61 has motor 12.During motor 12 drives
Mandrel 61 rotates, and central shaft 61 rotates with moving cam 6.The cam 6 of rotation periodically promotes lifting platform 3 to move up.Lifting platform 3 moves up
When, elastic component 311 is stretched, and rising of the guide pillar 31 to lifting platform 3 play the guiding role.
Reference picture 2, rotating shaft 4 is provided with lifting platform 3, the one end of rotating shaft 4 is extend into lifting platform 3, other end fixed setting
There is rotating disk 5.The fixing point of rotating shaft 4 and rotating disk 5 deviates the center of circle of rotating disk 5, and the distance deviateed is less than the half of the bottleneck of titration bottle 8
Footpath.Rotating disk 5 can rotate with the rotation of rotating shaft 4.
Reference picture 2 and Fig. 4, fixed mechanism include the fixing groove 51 in fixed plate 7 and rotating disk 5.It is provided with the top surface of rotating disk 5
Some pillars 52, the present embodiment B-C post 52 1 share four, and the top of pillar 52 is provided with inserting column 521, is set on inserting column 521
There is knob 5211.The center of fixed plate 7 is provided with fixing port 71, and the jack 72 inserted for inserting column 521 is provided with fixed plate 7,
The color change of solution in titration bottle 8 is observed during in order to not influence titration, the fixed plate 7 in the present embodiment uses transparent plastic
It is made.The bottom of titration bottle 8 is fixed at fixing groove 51, and fixed plate 7 is set in the top of titration bottle 8, and inserting column 521 is inserted from jack 72
After entering, fixed plate 7 can be fixed by screwing knob 5211.Titration bottle 8 is securely held between fixed plate 7 and rotating disk 5.
Reference picture 4, the first elastic washer 511 is provided with fixing groove 51, the second elastic washer is provided with fixing port 71
711, elastic washer can use the flexible materials such as rubber to be made.Elastic washer serves increasing friction force, protection drop
Determine the effect of bottle 8.
Reference picture 5, lifting platform 3 are hollow structure, and one end that rotating shaft 4 is extend into lifting platform 3 is fixedly installed ratchet 41,
The lower section of ratchet 41 is provided with lever 32.Lever 32 is movably arranged in rotating shaft 4, and the both ends of lever 32 are with being arranged on lifting platform
The movable end of hydraulic cylinder 33 in 3 is hinged.Ratchet 321 is provided with lever 32, the one end of ratchet 321 is hinged on lever 32, separately
One end is stuck in ratchet 41.When hydraulic cylinder 33 produces thrust, lever 32 is promoted to rotate, thrust is passed to ratchet 321, spine by lever 32
Pawl 321 promotes ratchet 41 to rotate, so as to which drive shaft 4 rotates.When hydraulic cylinder 33 produces pulling force, ratchet 321 retracts.Hydraulic cylinder 33
Push-and-pull power is periodically produced, rotating shaft 4 can be promoted to rotate.
Operation principle is as follows：
At the fixing groove 51 that will be fixed on before titration equipped with the titration bottle 8 with volumetric soiutions on rotating disk 5, then installation is fixed
Plate 7, the jack 72 for making the inserting column 521 on the top of pillar 52 insert in fixed plate 7.Then, knob 5211 is screwed on, fixed plate 7 is supported
Tightly, so that titration bottle 8 is fixedly secured on rotating disk 5.
Control hydraulic cylinder 33 and motor 12 work simultaneously, start titration operation.When hydraulic cylinder 33 produces thrust, promote
Lever 32 is rotated, and thrust is passed to ratchet 321 by lever 32, and ratchet 321 promotes ratchet 41 to rotate, so as to which drive shaft 4 rotates.
When hydraulic cylinder 33 produces pulling force, ratchet 321 retracts.Hydraulic cylinder 33 periodically produces push-and-pull power, can promote 4 turns of rotating shaft
It is dynamic.The rotating shaft 4 of rotation drives rotating disk 5 and the titration bottle 8 being fixed on inner rotary table 5 to rotate, so that the liquid in titration bottle 8
Rock, there is uniform mixing liquid.Under the driving of motor 12, cam 6 rotates, and periodically pushes against lifting platform
3.Constantly rise, move down so that lifting platform 3 is overall so that the titration bottle 8 being fixed on rotating disk 5 on lifting platform 3 with moving down
Move and rock, further enhance the immixture to solution in titration bottle 8.So as to reached rock titration bottle 8 automatically, need not
The artificial purpose rocked with regard to solution in titration bottle 8 can be sufficiently mixed.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (9)
1. a kind of titration stand, including bottom plate (1), montant (2) and buret clamp (21), the montant (2) is vertically set on described
The side of bottom plate (1), it is characterised in that：Also include the hollow lifting platform (3) that activity is set, vertically set on the bottom plate (1)
Some guide pillars (31) are equipped with, the top of the guide pillar (31) is inserted into lifting platform (3), and the bottom surface of the lifting platform (3) is set
It is equipped with the first drive mechanism for driving the lifting platform (3) to lift；It is provided with and turns at the center of lifting platform (3) top surface
Axle (4), one end of the rotating shaft (4) extend into the lifting platform (3), are provided with the lifting platform (3) and turn for driving
The second drive mechanism that axle (4) rotates；The other end of the rotating shaft (4) is provided with rotating disk（5）, and the rotating shaft (4) perpendicular to
Rotating disk（5）Bottom surface set；The rotating shaft (4) and rotating disk（5）Tie point be located at rotating disk（5）The center of circle and edge between, and
Fixing point deviates rotating disk（5）The distance in the center of circle is less than the radius of titration bottle (8) opening；The rotating disk（5）Top surface be provided with use
In the fixed mechanism of fixed titration bottle (8).
A kind of 2. titration stand according to claim 1, it is characterised in that：First drive mechanism is described including being set in
Elastic component (311) on guide pillar (31), described elastic component (311) one end are fixed on bottom plate (1), and the other end is fixed on lifting platform
(3) bottom surface；Also include the support (11) for being arranged on the cam (6) of lifting platform (3) bottom surface and being arranged on the bottom plate (1),
The cam (6) is fixedly installed on central shaft (61), and the central shaft (61) is movably arranged on support (11) and central shaft
(61) end set has the actuator for driving central shaft (61) to rotate.
A kind of 3. titration stand according to claim 2, it is characterised in that：The actuator is to be arranged on the central shaft
(61) motor (12) of end.
A kind of 4. titration stand according to claim 1, it is characterised in that：Second drive mechanism includes being fixedly installed on
The rotating shaft (4) is located at the ratchet (41) of lifting platform (3) interior one end, and lever (32) is movably set with the rotating shaft (4)；Institute
State and one end is provided with lever (32) is articulated with lever (32), the other end is stuck in the ratchet (321) of ratchet (41), the lever
(32) and ratchet (321) realizes that one end of ratchet (321) is stuck in ratchet (41) using elastic spacing mechanism；The lever (32)
The promising lever of end set（32）The push-pull mechanism of push-and-pull power is provided, and push-and-pull power is passed to by spine by lever (32)
Pawl (321).
A kind of 5. titration stand according to claim 4, it is characterised in that：The lever (32) is connected with two push-and-pull machines
Structure, two ratchets (321) and a rotating shaft (4), from one end of lever (32) to other end, are sequentially connected push-pull mechanism, spine
Pawl (321), rotating shaft (4), ratchet (321) and push-pull mechanism, the push-pull mechanism can discharge thrust or pulling force simultaneously.
A kind of 6. titration stand according to claim 5, it is characterised in that：The push-pull mechanism is hydraulic cylinder (33).
A kind of 7. titration stand according to claim 1, it is characterised in that：The fixed mechanism includes being arranged on the rotating disk
（5）On fixing groove (51) and circumference array be arranged on rotating disk（5）The pillar (52) of top surface, the pillar (52) is away from rotating disk
（5）One end be provided with diameter be less than pillar (52) inserting column (521)；Knob (5211) is provided with the inserting column (521)；Institute
Stating fixed mechanism also includes and the rotating disk（5）Shape identical fixed plate (7), the circle centre position of the fixed plate (7) be provided with
Titration bottle (8) bottleneck external diameter identical fixing port (71), and fixed plate (7) on be provided with for the inserting column (521) insertion insert
Hole (72).
A kind of 8. titration stand according to claim 7, it is characterised in that：The first elasticity is provided with the fixing groove (51)
Packing ring (511), the second elastic washer (711) is provided with the side wall of the fixing port (71).
A kind of 9. titration stand according to claim 7, it is characterised in that：The fixed plate (7) is made of transparent plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720972929.XU CN207056463U (en) | 2017-08-04 | 2017-08-04 | A kind of titration stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720972929.XU CN207056463U (en) | 2017-08-04 | 2017-08-04 | A kind of titration stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207056463U true CN207056463U (en) | 2018-03-02 |
Family
ID=61519811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720972929.XU Expired - Fee Related CN207056463U (en) | 2017-08-04 | 2017-08-04 | A kind of titration stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207056463U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111537683A (en) * | 2020-05-20 | 2020-08-14 | 张亚琪 | Portable food heavy metal detector |
-
2017
- 2017-08-04 CN CN201720972929.XU patent/CN207056463U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111537683A (en) * | 2020-05-20 | 2020-08-14 | 张亚琪 | Portable food heavy metal detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 214063 Jiangsu Province, Wuxi City Binhu District No. 280 Xinyuan Zhou Lixin building 11 layer Patentee after: WUXI HYDROLOGICAL ENGINEERING GEOLOGICAL SURVEY INSTITUTE CO.,LTD. Address before: 214063 Jiangsu city of Wuxi province Qian Rong Lu No. 10 Patentee before: WUXI HYDROLOGY ENGINEERING GEOLOGICAL EXPLORATION INSTITUTE |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 Termination date: 20210804 |