CN213315100U - Laboratory bench is used in chemistry teaching - Google Patents
Laboratory bench is used in chemistry teaching Download PDFInfo
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- CN213315100U CN213315100U CN202021844720.3U CN202021844720U CN213315100U CN 213315100 U CN213315100 U CN 213315100U CN 202021844720 U CN202021844720 U CN 202021844720U CN 213315100 U CN213315100 U CN 213315100U
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Abstract
The utility model discloses a laboratory bench for chemical teaching, which comprises a position adjusting mechanism and an experiment adjusting mechanism, wherein one end of a screw rod is connected with a base through a first bearing, a horizontal conical gear is fixed on the screw rod, the horizontal conical gear is meshed and connected with a vertical conical gear, the vertical conical gear is fixed at one end of a driving rod, a crank is fixedly arranged at the other end of the driving rod, a sleeve thread is arranged on the screw rod, the driving crank drives the driving rod and the screw rod to rotate, thereby driving a sleeve to move up and down, the sleeve is fixedly connected with the experiment adjusting mechanism, the laboratory bench adjusts the position of an experimental plate through the position adjusting mechanism to ensure that the laboratory plate is positioned at a proper height so that students can clearly see the process and the effect of an experiment, the laboratory bench clamps capacity cups with different specifications through four arc-shaped positioning blocks through the arrangement of the experiment adjusting mechanism, and also clamps the capacity cups with, high adaptability and convenient use.
Description
Technical Field
The utility model relates to a chemistry teaching aid technical field specifically is a laboratory bench is used in chemistry teaching.
Background
The student does the experiment in the laboratory or chemistry mr explains the chemistry experiment in the classroom, all use the laboratory bench as the demonstration instrument, express the objectivity of experiment, student and the laboratory bench simple structure of mr universal use, the function is single, it is inconvenient to use when demonstrating the chemistry experiment, and factor of safety is lower, if touch the chemical reagent bottle carelessly and take place the reagent bottle very likely and empty, chemical reagent produces certain harm to human skin, generally adopt the burette to go on when reagent is taken, cause the reagent in the reagent bottle to receive the pollution easily, influence the effect of experiment, and the mr is when demonstrating the experiment, the classmate of back row is because the relation in classroom space, hardly see clearly the experiment that the teacher made on the lecture bench.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a laboratory bench is used in chemistry teaching to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a chemical teaching experiment table comprises a position adjusting mechanism and an experiment adjusting mechanism, wherein the position adjusting mechanism and the experiment adjusting mechanism are both fixed on a base;
the position adjusting mechanism comprises a screw rod, a first bearing, a horizontal conical gear, a sleeve, a vertical conical gear, a driving rod and a crank, wherein one end of the screw rod is connected to the base through the first bearing, the horizontal conical gear is fixed on the screw rod, the horizontal conical gear is meshed with the vertical conical gear, the vertical conical gear is fixed at one end of the driving rod, the crank is fixedly arranged at the other end of the driving rod, the sleeve is installed on the screw rod in a threaded mode, and the crank is driven to drive the driving rod and the screw rod to rotate so as to drive the sleeve to move up and down;
sleeve fixed connection is in experiment adjustment mechanism, experiment adjustment mechanism includes connecting plate, experiment board, dead lever, first slider, first arc locating piece, second arc locating piece, slide bar, second slider, third arc locating piece and fourth arc locating piece, the one end fixed connection of connecting plate is in the sleeve, the other end fixed connection of connecting plate is in the experiment board, the dead lever is fixed on the experiment board, there are first arc locating piece of a plurality of and second arc locating piece through first slider sliding connection on the dead lever, the slide bar passes through second slider slidable mounting on the experiment board, there are a plurality of third arc locating piece and fourth arc locating piece through first slider slidable connection on the slide bar.
Furthermore, a plurality of fixing holes are formed in the experiment plate.
Further, a test tube rack is further arranged on the base.
Furthermore, a drawer for installing a dropping bottle is arranged in the base.
Further, the driving rod is connected to the installation box through a second bearing, and the crank is located outside the installation box.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the experiment table adjusts the position of the experiment plate through the position adjusting mechanism, so that the experiment plate is positioned at a proper height to facilitate students to clearly see the experiment process and effect;
2. this kind of laboratory bench makes its capacity cup through four arc locating pieces come the different specifications of centre gripping through experiment adjustment mechanism's setting, also can be through the capacity cup of the fixed specification of fixed block centre gripping on the laboratory sheet, and adaptability is high, and it is very convenient to use.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of the experiment adjusting mechanism of the present invention.
In the reference symbols: 1. a position adjustment mechanism; 2. an experiment adjusting mechanism; 3. a base; 4. a screw; 5. a first bearing; 6. a horizontal bevel gear; 7. a sleeve; 8. a vertical bevel gear; 9. a drive rod; 10. a crank; 11. a connecting plate; 12. an experimental plate; 13. fixing the rod; 14. a first slider; 15. a first arc-shaped positioning block; 16. a second arc-shaped positioning block; 17. a slide bar; 18. a second slider; 19. a third arc-shaped positioning block; 20. a fourth arc-shaped positioning block; 21. a fixing hole; 22. a test tube rack; 23. a drawer; 24. a second bearing; 25. and (5) installing a box.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that as used in the following description, the terms "front," "back," "left," "right," "upper," and "lower" refer to directions in the drawings, and the terms "bottom" and "top," "inner," and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1-2, the present invention provides a technical solution: a chemical teaching experiment table comprises a position adjusting mechanism 1 and an experiment adjusting mechanism 2, wherein the position adjusting mechanism 1 and the experiment adjusting mechanism 2 are both fixed on a base 3;
the position adjusting mechanism 1 comprises a screw rod 4, a first bearing 5, a horizontal conical gear 6, a sleeve 7, a vertical conical gear 8, a driving rod 9 and a crank 10, one end of the screw rod 4 is connected to the base 3 through the first bearing 5, the horizontal conical gear 6 is fixed on the screw rod 4, the horizontal conical gear 6 is meshed and connected with the vertical conical gear 8, the vertical conical gear 8 is fixed at one end of the driving rod 9, the crank 10 is fixedly installed at the other end of the driving rod 9, the sleeve 7 is installed on the screw rod 4 in a threaded manner, and the crank 10 is driven to drive the driving rod 9 and the screw rod 4 to rotate, so that the sleeve 7 is driven;
The experiment board 12 is provided with a plurality of fixing holes 21 for clamping the measuring cups with fixed specifications.
The base 3 is also provided with a test tube rack 22 for holding test tubes.
A drawer 23 for installing a dropping bottle is arranged in the base 3.
The drive rod 9 is connected to a mounting box 25 via a second bearing 24, and the crank 10 is located outside the mounting box 25.
The working principle is as follows: this kind of laboratory bench is when specifically using, at first, it rotates to drive actuating lever 9 through crank 10, actuating lever 9 drives screw rod 4 through horizontal bevel gear 6 and vertical bevel gear 8 and rotates, thereby drive sleeve 7 and laboratory panel 12 and reciprocate in order to adjust the position of laboratory panel 12, make it be located suitable height so that the student sees the process and the effect of experiment clearly, then the capacity cup of four arc locating pieces of slide adjusting fixed different specifications, also the capacity cup of the fixed specification of fixed orifice 21 of centre gripping on accessible laboratory panel 12 comes, this kind of laboratory bench adaptability is high, it is very convenient to use, still be equipped with test-tube rack 22 and drawer 23 on this kind of laboratory bench, be used for placing test tube and dropping liquid bottle.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a laboratory bench is used in chemistry teaching which characterized in that: the device comprises a position adjusting mechanism (1) and an experiment adjusting mechanism (2), wherein the position adjusting mechanism (1) and the experiment adjusting mechanism (2) are both fixed on a base (3);
the position adjusting mechanism (1) comprises a screw rod (4), a first bearing (5), a horizontal bevel gear (6), a sleeve (7), a vertical bevel gear (8), a driving rod (9) and a crank (10), one end of the screw rod (4) is connected to the base (3) through the first bearing (5), the horizontal bevel gear (6) is fixed to the screw rod (4), the horizontal bevel gear (6) is connected to the vertical bevel gear (8) in a meshed mode, the vertical bevel gear (8) is fixed to one end of the driving rod (9), the crank (10) is fixedly installed at the other end of the driving rod (9), the sleeve (7) is installed on the screw rod (4) in a threaded mode, and the driving crank (10) drives the driving rod (9) and the screw rod (4) to rotate so as to drive the sleeve (7) to move up and down;
the sleeve (7) is fixedly connected to the experiment adjusting mechanism (2), the experiment adjusting mechanism (2) comprises a connecting plate (11), an experiment plate (12), a fixing rod (13), a first slider (14), a first arc-shaped positioning block (15), a second arc-shaped positioning block (16), a sliding rod (17), a second slider (18), a third arc-shaped positioning block (19) and a fourth arc-shaped positioning block (20), one end of the connecting plate (11) is fixedly connected to the sleeve (7), the other end of the connecting plate (11) is fixedly connected to the experiment plate (12), the fixing rod (13) is fixed on the experiment plate (12), the fixing rod (13) is slidably connected with a plurality of first arc-shaped positioning blocks (15) and second arc-shaped positioning blocks (16) through the first slider (14), and the sliding rod (17) is slidably mounted on the experiment plate (12) through the second slider (18), the sliding rod (17) is connected with a plurality of third arc-shaped positioning blocks (19) and fourth arc-shaped positioning blocks (20) in a sliding mode through a first sliding block (14).
2. The chemical teaching laboratory table according to claim 1, wherein: the experiment plate (12) is provided with a plurality of fixing holes (21).
3. The chemical teaching laboratory table according to claim 1, wherein: the base (3) is also provided with a test tube rack (22).
4. The chemical teaching laboratory table according to claim 1, wherein: a drawer (23) for installing a dropping bottle is arranged in the base (3).
5. The chemical teaching laboratory table according to claim 1, wherein: the driving rod (9) is connected to the installation box (25) through a second bearing (24), and the crank (10) is located outside the installation box (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021844720.3U CN213315100U (en) | 2020-08-29 | 2020-08-29 | Laboratory bench is used in chemistry teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021844720.3U CN213315100U (en) | 2020-08-29 | 2020-08-29 | Laboratory bench is used in chemistry teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213315100U true CN213315100U (en) | 2021-06-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021844720.3U Active CN213315100U (en) | 2020-08-29 | 2020-08-29 | Laboratory bench is used in chemistry teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213315100U (en) |
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2020
- 2020-08-29 CN CN202021844720.3U patent/CN213315100U/en active Active
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