CN211825893U - Titration apparatus for chemistry experiments - Google Patents
Titration apparatus for chemistry experiments Download PDFInfo
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- CN211825893U CN211825893U CN202022094287.2U CN202022094287U CN211825893U CN 211825893 U CN211825893 U CN 211825893U CN 202022094287 U CN202022094287 U CN 202022094287U CN 211825893 U CN211825893 U CN 211825893U
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- rod
- rotating shaft
- lifting sleeve
- reading
- burette
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- 238000002474 experimental method Methods 0.000 title claims abstract description 33
- 238000004448 titration Methods 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 claims description 23
- 239000000126 substance Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model is suitable for a chemistry experiment equipment technical field provides a titration outfit for chemistry experiments, including setting up the back shaft on the base, the both sides of back shaft are equipped with first spout and second spout respectively, and the top of back shaft is equipped with horizontal backup pad; a first rotating shaft is rotatably connected between the transverse supporting plate on one side and the base, a first lifting sleeve is sleeved on the first rotating shaft, a fixed rod is fixedly connected on the first lifting sleeve, and a pipe clamp is arranged at the end part of the fixed rod; a second rotating shaft is rotatably connected between the transverse supporting plate on the other side and the base, a reading rod is fixedly connected to the second lifting sleeve, and the end part of the reading rod is perpendicular to the burette. Therefore, the utility model discloses simple structure, convenient to use, the cost of manufacture is low, reduces the purchasing cost in laboratory, can make clear, the accurate numerical value of reading out of experimenter simultaneously, improves the accuracy of experiment.
Description
Technical Field
The utility model relates to a chemistry experiment laboratory paraphernalia technical field especially relates to a titration outfit for chemistry experiments.
Background
In chemical experiments, titration is a chemical experimental operation and also a means for quantitative analysis. It determines the content of a certain solute by quantitative reaction of two solutions.
In the existing titration experiment operation, the required experimental devices mainly comprise a titration table, an acid-base burette, a glass ware such as a glass rod, a beaker and a triangular flask. In a specific experiment operation, an experimenter is required to achieve higher precision in the titration operation, which requires that the used experimental apparatus has better controllability and higher precision, but the currently used titration table is relatively rough in design.
When the burette reads, the burette is vertically clamped on the burette rack or the upper part of the burette is held by hands without scales. No matter which method is used for reading, the burette is required to be kept vertical, and the sight line is flush with the concave liquid level of the liquid level during reading, but both reading modes are time-consuming and labor-consuming, and when the burette is clamped on the burette rack for reading, an inspector can change the sight line height according to the height of the liquid level; hand-held burette readings require repeated removal of the burette from the burette rack.
The patent with publication number CN205684068U discloses an electric lifting burette stand with lighting device, it can adjust the height of burette through the lead screw, need not to install repeatedly, take off the burette, but still is the height of artifical judgement concave liquid level during the reading, and the reading precision is not high. Patent publication No. CN205700642U discloses a high school chemistry titration experimental apparatus, and its mode through the rack and pinion adjusts the height of buret, need not to install repeatedly, take off the buret, but the device structure is complicated, and manufacturing cost is higher, also improves experimental facilities cost simultaneously.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
To foretell defect, the utility model aims to provide a titration outfit for chemistry experiments, its simple structure, convenient to use, the cost of manufacture is low, reduces the purchasing cost in laboratory, can make clear, the accurate numerical value of reading out of experimenter simultaneously, improves the accuracy of experiment.
In order to realize the above-mentioned purpose, the utility model provides a titration outfit for chemistry experiments, including setting up the back shaft on the base, the both sides of back shaft are equipped with first spout and second spout respectively, the top of back shaft is equipped with horizontal backup pad.
A first rotating shaft is rotatably connected between the transverse supporting plate on one side and the base, a first lifting sleeve is sleeved on the first rotating shaft, a first sliding block is fixedly connected on the first lifting sleeve, and the first sliding block is slidably connected with the first sliding chute; the first lifting sleeve is further fixedly connected with a fixed rod, and the end part of the fixed rod is provided with a pipe clamp for movably clamping and connecting the burette.
A second rotating shaft is rotatably connected between the transverse supporting plate and the base on the other side, a second lifting sleeve is sleeved on the second rotating shaft, a second sliding block is fixedly connected on the second lifting sleeve, and the second sliding block is slidably connected with a second sliding chute; and the second lifting sleeve is also fixedly connected with a reading rod, and the end part of the reading rod is vertical to the burette.
The tops of the first rotating shaft and the second rotating shaft penetrate out of the transverse supporting plate and then are respectively connected with a driving piece.
According to the utility model discloses a titration outfit for the chemistry experiments, the montant is still connected to the bottom of second lift cover, the montant with be equipped with the calibration pole between the tip of reading pole, montant, reading pole and calibration pole constitute triangle-shaped jointly.
According to the utility model discloses a titration outfit for the chemistry experiments, the length of reading rod is greater than the distance between buret and the second lift cover.
According to the utility model discloses a titration outfit for the chemistry experiments, the reading pole is close to the position of buret still is equipped with the phosphor strip.
According to the utility model discloses a titration outfit for the chemistry experiments, the length of phosphor strip is greater than the width of buret.
According to the utility model discloses a titration outfit for the chemistry experiments, the driving piece is driving motor or drive handle.
According to the utility model discloses a titration outfit for the chemistry experiments, still be equipped with on the base and connect the liquid platform.
According to the utility model discloses a titration outfit for the chemistry experiments, it is concave still to be equipped with the location on the liquid platform to connect.
The utility model aims to provide a titration apparatus for chemical experiments, which is characterized in that a transverse support plate is arranged at the top of a support shaft; a first rotating shaft and a second rotating shaft are rotatably connected between the transverse supporting plate and the base, a first lifting sleeve is sleeved on the first rotating shaft and is fixedly connected with a fixed rod, a pipe clamp used for movably clamping a burette is arranged at the end part of the fixed rod, and the first lifting sleeve can perform lifting movement relative to the first rotating shaft, so that the burette performs lifting movement, and the height of the burette is in line with experimenters with different heights; the rigid coupling reading pole is sheathe in the second lift, and the tip and the buret mutually perpendicular of reading pole, second lift cover can go up and down the activity for the second pivot to make the reading pole go up and down the activity, the reading pole can coincide with the concave liquid level of buret, make the experimenter carry out the reading with the help of the reading pole, need not the manual work and judge whether the sight of oneself is on same water flat line with the concave liquid level. To sum up, the beneficial effects of the utility model are that: simple structure, convenient to use, the cost of manufacture is low, reduces the purchasing cost in laboratory, can make the clear, accurate numerical value of reading out of experimenter simultaneously, improves the accuracy of experiment.
Drawings
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic view of the A-direction structure of the support shaft of FIG. 1; in the figure: 1-a base, 2-a supporting shaft, 21-a transverse supporting plate, 22-a first sliding groove and 23-a second sliding groove; 3-a first rotating shaft, 31-a first lifting sleeve, 32-a first sliding block, 33-a fixed rod and 34-a pipe clamp; 4-a second rotating shaft, 41-a second lifting sleeve, 42-a second sliding block, 43-a reading rod, 44-a fluorescent strip, 45-a vertical rod and 46-a calibration rod; 5-driving piece, 6-liquid receiving table, 61-positioning concave; 7-burette.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and 2, the utility model provides a titration outfit for chemistry experiments, including setting up back shaft 2 on base 1, the both sides of back shaft 2 are equipped with first spout 22 and second spout 23 respectively, and the top of back shaft 2 is equipped with horizontal backup pad 21, and horizontal backup pad 21 uses back shaft 2 to divide into about two parts as the center.
A first rotating shaft 3 is rotatably connected between the transverse supporting plate 21 on one side and the base 1 through a bearing, a first lifting sleeve 31 is sleeved on the first rotating shaft 3, a first sliding block 32 is fixedly connected on the first lifting sleeve 31, and the first sliding block 32 is slidably connected with a first sliding chute 22; the first lifting sleeve 31 is also fixedly connected with a fixed rod 33, and the end part of the fixed rod 33 is provided with a pipe clamp 34 for movably clamping the burette 7. The top of the first rotating shaft 3 penetrates through the transverse supporting plate 21 and then is connected with the driving part 5.
The utility model discloses in, first pivot 3 is the lead screw, and first pivot 3 cup joints for the screw with the mode of cup jointing of first lift cover 31.
In the using process, the driving part 5 drives the first rotating shaft 3 to rotate, and the first sliding block 32 on the first lifting sleeve 31 is slidably connected with the first sliding groove 22, so that the first lifting sleeve 31 does not rotate along with the rotation of the first rotating shaft 3, but performs lifting movement relative to the first rotating shaft 3, and the fixed rod 33 and the pipe clamp 34 connected to the first lifting sleeve 31 also perform lifting movement, thereby realizing the lifting of the burette 7.
A second rotating shaft 4 is rotatably connected between the transverse supporting plate 21 on the other side and the base 1 through a bearing, a second lifting sleeve 41 is sleeved on the second rotating shaft 4, a second sliding block 42 is fixedly connected on the second lifting sleeve 41, and the second sliding block 42 is slidably connected with a second sliding chute 23; the second lifting sleeve 41 is also fixedly connected with a reading rod 43, the end part of the reading rod 43 is arranged close to the burette 7, and the reading rod 43 is vertical to the burette 7. The top of the second rotating shaft 4 penetrates through the transverse supporting plate 21 and then is connected with the driving part 5.
The utility model discloses in, second pivot 4 is the lead screw, and second pivot 4 cup joints for the screw with the mode of cup jointing of second lift cover 41.
In the using process, the driving member 5 drives the second rotating shaft 4 to rotate, and since the second sliding block 42 on the second lifting sleeve 41 is slidably connected to the second sliding slot 23, the second lifting sleeve 41 does not rotate along with the rotation of the second rotating shaft 4, but performs lifting movement relative to the second rotating shaft 4, and the reading rod 43 connected to the second lifting sleeve 41 also performs lifting movement.
The utility model discloses a theory of operation does:
after the solution to be calibrated is added into the burette 7, the burette is arranged in the pipe clamp 34, and the height of the burette 7 in the pipe clamp 34 needs to be adjusted for many times by an experimenter due to different heights and different sight heights of different experimenters; the experimenter of the utility model can make the driving piece 5 of the first rotating shaft 3 work to drive the first lifting sleeve 31, the fixed rod 33 and the pipe clamp 34 to lift, thereby lifting the burette 7 and making the concave liquid level of the burette 7 reach the sight height of the experimenter; then make the driving piece 5 work of second pivot 4, drive second lift cover 41 and reading pole 43 go up and down, make reading pole 43 reach the concave liquid level of buret 7 just, because reading pole 43 all the time with buret 7 mutually perpendicular, reading pole 43 and the scale mark on the buret 7 can coincide, consequently, the coincidence department of reading pole 43 and concave liquid level is accurate position, need not the experimenter and judges whether own sight is on a horizontal line with concave liquid level, the experimenter can be clear, the numerical value is read out to the accuracy of improvement experiment.
In order to ensure that the reading rod 43 and the burette 7 are always perpendicular to each other, as an optimal scheme, the bottom of the second lifting sleeve 41 is further connected with a vertical rod 45, a calibration rod 46 is arranged between the end portions of the vertical rod 45 and the reading rod 43, the vertical rod 45, the reading rod 43 and the calibration rod 46 form a triangle together, so that the reading rod 43 is ensured to be in a horizontal state, the reading rod 43 and the burette 7 are further ensured to be perpendicular to each other, and the reading precision is improved.
The utility model discloses in, the length of reading pole 43 is greater than the distance between buret 7 and the second lift cover 41, makes reading pole 43 fully be close to with buret 7, makes things convenient for the experimenter to read. The reading rod 43 is also provided with a fluorescent strip 44 at a position close to the burette 7, and the fluorescent strip 44 can enable an experimenter to more easily see the overlapping position of the reading rod 43 and the scale marks on the burette 7; the length of the fluorescent strip 44 is greater than the width of the burette 7, facilitating the reading by the experimenter.
The driving part 5 is a driving motor or a driving handle, the driving motor realizes the automatic rotation of the first rotating shaft 3 or the second rotating shaft 4, and the driving handle needs the manual rotation of an experimenter.
As the burette 7 is often filled with corrosive solution, the bottom of the burette 7 has poor sealing performance after long-time use, liquid drops fall on the base 1 to corrode the base 1, the service life of the device is shortened, and as a preferred scheme, the base 1 is also provided with the liquid receiving platform 6, and the liquid receiving platform 6 is used for placing a conical bottle or a beaker to receive the falling liquid drops; the liquid receiving table 6 is also provided with a positioning concave 61, so that a conical bottle or a beaker can be accurately placed right below the burette 7 to accurately receive liquid in the placing process.
In summary, the utility model arranges the transverse support plate on the top of the support shaft; a first rotating shaft and a second rotating shaft are rotatably connected between the transverse supporting plate and the base, a first lifting sleeve is sleeved on the first rotating shaft and is fixedly connected with a fixed rod, a pipe clamp used for movably clamping a burette is arranged at the end part of the fixed rod, and the first lifting sleeve can perform lifting movement relative to the first rotating shaft, so that the burette performs lifting movement, and the height of the burette is in line with experimenters with different heights; the rigid coupling reading pole is sheathe in the second lift, and the tip and the buret mutually perpendicular of reading pole, second lift cover can go up and down the activity for the second pivot to make the reading pole go up and down the activity, the reading pole can coincide with the concave liquid level of buret, make the experimenter carry out the reading with the help of the reading pole, need not the manual work and judge whether the sight of oneself is on same water flat line with the concave liquid level. To sum up, the beneficial effects of the utility model are that: simple structure, convenient to use, the cost of manufacture is low, reduces the purchasing cost in laboratory, can make the clear, accurate numerical value of reading out of experimenter simultaneously, improves the accuracy of experiment.
Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.
Claims (8)
1. A titration device for chemical experiments is characterized by comprising a support shaft arranged on a base, wherein a first sliding groove and a second sliding groove are respectively arranged on two sides of the support shaft, and a transverse support plate is arranged at the top of the support shaft;
a first rotating shaft is rotatably connected between the transverse supporting plate on one side and the base, a first lifting sleeve is sleeved on the first rotating shaft, a first sliding block is fixedly connected on the first lifting sleeve, and the first sliding block is slidably connected with the first sliding chute; the first lifting sleeve is also fixedly connected with a fixed rod, and the end part of the fixed rod is provided with a pipe clamp for movably clamping and connecting the burette;
a second rotating shaft is rotatably connected between the transverse supporting plate and the base on the other side, a second lifting sleeve is sleeved on the second rotating shaft, a second sliding block is fixedly connected on the second lifting sleeve, and the second sliding block is slidably connected with a second sliding chute; a reading rod is fixedly connected to the second lifting sleeve, and the end part of the reading rod is perpendicular to the burette;
the tops of the first rotating shaft and the second rotating shaft penetrate out of the transverse supporting plate and then are respectively connected with a driving piece.
2. The titration apparatus for chemical experiments according to claim 1, wherein a vertical rod is further connected to the bottom of the second lifting sleeve, a calibration rod is disposed between the vertical rod and the end of the reading rod, and the vertical rod, the reading rod and the calibration rod together form a triangle.
3. The titration device for chemical experiments according to claim 1, wherein the length of the reading rod is greater than the distance between the burette and the second lifting sleeve.
4. The titration apparatus for chemical experiments according to claim 1, wherein a fluorescent strip is further disposed on the reading rod near the burette.
5. The titration device for chemical experiments according to claim 4, wherein the length of the fluorescent strip is greater than the width of the burette.
6. The titration device for chemical experiments according to claim 1, wherein the driving member is a driving motor or a driving handle.
7. The titration apparatus for chemical experiments according to claim 1, wherein the base further comprises a liquid receiving platform.
8. The titration apparatus for chemical experiments according to claim 7, wherein a positioning recess is further provided on the liquid receiving platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022094287.2U CN211825893U (en) | 2020-09-23 | 2020-09-23 | Titration apparatus for chemistry experiments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022094287.2U CN211825893U (en) | 2020-09-23 | 2020-09-23 | Titration apparatus for chemistry experiments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211825893U true CN211825893U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022094287.2U Active CN211825893U (en) | 2020-09-23 | 2020-09-23 | Titration apparatus for chemistry experiments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211825893U (en) |
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2020
- 2020-09-23 CN CN202022094287.2U patent/CN211825893U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231007 Address after: Room 705, 18-2-2-2, 7th floor, No. 18 Xibahe Dongli, Chaoyang District, Beijing, 100000 Patentee after: Zhongjian Metrology Co.,Ltd. Address before: No. 00399, Kechuang North Street, Binhai Economic Development Zone, Weifang City, Shandong Province Patentee before: SHANDONG VOCATIONAL College OF SCIENCE & TECHNOLOGY |
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| TR01 | Transfer of patent right |