CN220895075U - Solution conductivity demonstration teaching aid - Google Patents
Solution conductivity demonstration teaching aid Download PDFInfo
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- CN220895075U CN220895075U CN202322792200.2U CN202322792200U CN220895075U CN 220895075 U CN220895075 U CN 220895075U CN 202322792200 U CN202322792200 U CN 202322792200U CN 220895075 U CN220895075 U CN 220895075U
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- 238000001514 detection method Methods 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of teaching aids, in particular to a demonstration teaching aid, which aims at the problems that an existing solution cup is directly placed on a cup holder without fixing measures, and the solution cup is easy to fall down when a platform is lifted or tested when the device is placed on an inclined table top, and the demonstration teaching aid comprises a placement bottom plate, wherein a vertical plate is fixed at the top end of the placement bottom plate; the beaker is used for containing the solution, a circular placing groove is formed in the placing bottom plate, and the beaker is arranged in the circular placing groove; the clamping and positioning assembly is arranged in the placing bottom plate and used for clamping and fixing the beaker placed in the circular placing groove; the communication display part comprises a detection lamp arranged at the top end of the vertical plate, and a power supply is arranged in the vertical plate; the clamping and positioning assembly is arranged in the placing bottom plate to fix the position of the beaker, so that the stability of the beaker can be further ensured, and the beaker can not fall down even if the placing bottom plate is arranged at an uneven position.
Description
Technical Field
The utility model relates to the technical field of teaching aids, in particular to a demonstration teaching aid.
Background
The conductivity of a solution is described as an important property when the nature of the solution is stated in chemistry. In the test, it is determined whether or not different substances have conductivity in different states. If each solution is tested separately, the time is more consuming, the test phenomenon is easy to be confused, the dissimilarity effect is generated, the contrast effect is not obvious, the students are easy to be confused, and the memory is difficult.
Through retrieving, the chinese patent of patent publication No. CN201910188U discloses a solution conductivity demonstrator for chemical teaching, including the support body, be provided with 1-6 group's electrode bars on the support body, every group electrode bar is connected respectively and is provided with demonstration lamp, plug, still is provided with the solution cup below every group electrode bar, 1-6 group electrode bars set up to the electrode bar of different electrically conductive materials respectively, still have following problem when this patent uses:
1. The solution cup is directly placed on the cup holder without fixing measures, and the situation that the solution cup falls down easily when the device is placed on an inclined table top during lifting or experiments of a platform is easy to occur;
2. The electrode rod is fixed in the frame body, so that the electrode rod is inconvenient to clean after the demonstration experiment.
Disclosure of utility model
The utility model aims to solve the defects that in the prior art, a solution cup is directly placed on a cup holder without fixing measures, and the solution cup is easy to fall down when a platform is lifted or tested when the device is placed on an inclined table top, and provides a demonstration teaching aid.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
A demonstration teaching aid comprises a placement bottom plate, wherein a vertical plate is fixed at the top end of the placement bottom plate; the beaker is used for containing the solution, a circular placing groove is formed in the placing bottom plate, and the beaker is arranged in the circular placing groove; the clamping and positioning assembly is arranged in the placing bottom plate and used for clamping and fixing the beaker placed in the circular placing groove; the communication display part comprises a detection lamp arranged at the top end of a vertical plate, a power supply is further arranged in the vertical plate, a lifting slide plate is arranged at the side end of the vertical plate in a sliding mode, a first electrode rod and a second electrode rod which are used for penetrating into a beaker solution are fixed in the lifting slide plate, a first wire and a second wire are respectively fixed at the top ends of the first electrode rod and the second electrode rod, the first wire and the second wire are respectively connected with the positive electrode and the negative electrode of the power supply, and the detection lamp is connected in series on the first wire; the fixing component is arranged on the upper side of the lifting slide plate and used for fixing the position of the lifting slide plate after the lifting slide plate ascends.
In one possible design, the clamping and positioning assembly comprises two first grooves which are formed in the placing bottom plate and are communicated with the circular placing grooves, arc-shaped clamping plates are arranged in the first grooves in a sliding mode, accommodating grooves are formed in the arc-shaped clamping plates, clamping springs are fixed in the accommodating grooves, and the clamping springs are fixed in the two first grooves respectively.
In one possible design, the cambered surfaces of both of the cambered clamping plates are provided with anti-skid pads.
In one possible design, the beaker is equipped with a plurality of, circular standing groove has seted up a plurality of, clamping and positioning assembly is equipped with the multiunit, multiunit clamping and positioning assembly evenly locates in the place bottom plate and is used for carrying out the centre gripping to the beaker in a plurality of circular standing grooves, the intercommunication display part is equipped with the multiunit.
In one possible design, the fixing assembly comprises a first magnetic attraction block fixed at the top end of the lifting slide plate, a fixing plate is fixed at the side end of the vertical plate, and a first groove magnetically connected with the first magnetic attraction block is arranged at the bottom end of the fixing plate.
In one possible design, the surface of a plurality of beakers is provided with indicating stickers.
According to the application, when the beaker filling with different solutions is sequentially placed in different circular placing grooves, the arc-shaped clamping plates at two sides are driven to move towards the direction close to each other by the elastic pushing of the clamping springs, the surfaces of the beakers can be clamped and fixed from two sides, the positions of the beakers are fixed, then the lifting slide plate is pulled by hands, the magnetic connection between the first magnetic suction block and the first groove is stripped, the lifting slide plate is slid to the top end of the beakers, the lifting slide plate is supported by the beakers, meanwhile, the first electrode rods and the second electrode rods in the lifting slide plate are all inserted into different solutions in the beakers, if the solutions are conductive, the detection lamp corresponding to the solutions can be lightened, and if the solutions are nonconductive, the detection lamp corresponding to the solutions can not be lightened.
According to the demonstration teaching aid, the effect that the beaker is placed more stably can be achieved through the clamping and positioning assembly;
According to the demonstration teaching aid, through the fixing assembly, the effect of stably fixing the lifting slide plate, the first electrode rod and the second electrode rod can be achieved;
According to the technical scheme, the circular placing groove is formed in the placing bottom plate, the beaker is placed in the circular placing groove, so that stability of the beaker can be kept, meanwhile, the clamping and positioning assembly is arranged in the placing bottom plate to fix the position of the beaker, stability of the beaker can be further guaranteed, the beaker cannot fall down even if the placing bottom plate is uneven, meanwhile, the first electrode rod and the second electrode rod are fixed in the lifting slide plate and can move up and down along with the lifting slide plate, the purpose of entering or leaving solution in the beaker is achieved, the fixing assembly is arranged on the upper side of the lifting slide plate, the lifting slide plate after lifting can be fixed in position, the beaker is kept stable, meanwhile, no frame limit exists between the placing bottom plate and the vertical plate, the first electrode rod and the second electrode rod can be cleaned conveniently after experiments are finished, and service lives of the first electrode rod and the second electrode rod are guaranteed.
Drawings
Fig. 1 is a front perspective view of a demonstration teaching aid according to the present utility model;
FIG. 2 is a first partial cross-sectional view of a demonstration teaching aid in accordance with the present utility model;
Fig. 3 is a second partial cross-sectional view of a demonstration teaching aid according to the present utility model.
In the figure: 1. placing a bottom plate; 2. a vertical plate; 3. a circular placement groove; 4. a fixing plate; 5. a lifting slide plate; 6. a first electrode rod; 7. a second electrode rod; 8. an arc-shaped clamping plate; 9. a first magnetic block; 10. a first wire; 11. a second wire; 12. a detection lamp; 13. a beaker; 14. indication stickers; 15. a first groove; 16. a clamping spring; 17. and a containing groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Example 1
Referring to fig. 1-3, a demonstration teaching aid is applied in the technical field of teaching aids, and comprises a placement base plate 1, wherein a vertical plate 2 is fixed at the top end of the placement base plate 1; a beaker 13 for containing a solution, a circular placing groove 3 is formed in the placing bottom plate 1, and the beaker 13 is arranged in the circular placing groove 3;
Referring to fig. 1, a demonstration teaching aid further includes a communication display part, the communication display part includes a detection lamp 12 disposed at the top end of a vertical plate 2, a power supply is further disposed in the vertical plate 2, a lifting slide plate 5 is slid at the side end of the vertical plate 2, a first electrode rod 6 and a second electrode rod 7 for penetrating into a solution in a beaker 13 are fixed in the lifting slide plate 5, a first conducting wire 10 and a second conducting wire 11 are respectively fixed at the top ends of the first electrode rod 6 and the second electrode rod 7, the first conducting wire 10 and the second conducting wire 11 are respectively connected with the anode and the cathode of the power supply, and the detection lamp 12 is connected in series on the first conducting wire 10; the first electrode bar 6 and the second electrode bar 7 are immersed in the solution in the beaker 13, the detection lamp 12 is turned on if the solution is conductive, and the detection lamp 12 is not turned on if the solution is non-conductive;
Referring to fig. 3, the demonstration teaching aid further comprises a clamping and positioning assembly, wherein the clamping and positioning assembly is arranged in the placement base plate 1 and is used for clamping and fixing the beaker 13 placed in the circular placement groove 3; the clamping and positioning assembly comprises two first grooves 15 which are formed in the placing bottom plate 1 and communicated with the circular placing groove 3, arc-shaped clamping plates 8 are respectively and slidably arranged in the two first grooves 15, accommodating grooves 17 are respectively formed in the two arc-shaped clamping plates 8, clamping springs 16 are respectively and fixedly arranged in the two accommodating grooves 17, and the two clamping springs 16 are respectively and fixedly arranged in the two first grooves 15; the beaker 13 is placed in the circular placing groove 3, and the arc clamping plates 8 at two sides are driven to move towards the direction close to each other by the elastic pushing of the clamping springs 16, so that the surface of the beaker 13 can be clamped and fixed from two sides, and the position of the beaker 13 is fixed
Further, the cambered surfaces of the two cambered clamping plates 8 are provided with anti-slip pads.
Referring to fig. 1 and 2, a demonstration teaching aid further includes a fixing assembly provided at an upper side of the elevation slide plate 5 for fixing a position of the elevation slide plate 5 after the elevation slide plate 5 ascends; the fixing assembly comprises a first magnetic attraction block 9 fixed at the top end of the lifting slide plate 5, a fixing plate 4 is fixed at the side end of the vertical plate 2, and a first groove 15 magnetically connected with the first magnetic attraction block 9 is arranged at the bottom end of the fixing plate 4; the position of the lifting slide plate 5 after lifting can be fixed through the magnetic connection of the first magnetic attraction block 9 and the first groove 15.
Example 2
Referring to fig. 1, the improvement is based on example 1: the plurality of beakers 13 are arranged, the plurality of circular placing grooves 3 are formed, the plurality of clamping and positioning components are arranged, the plurality of groups of clamping and positioning components are uniformly arranged in the placing bottom plate 1 and used for clamping the beakers 13 in the plurality of circular placing grooves 3, and the plurality of groups of clamping and positioning components are arranged in the communication display part; the first electrode bars 6 and the second electrode bars 7 in the lifting slide plate 5 are all inserted into different solutions in the beakers 13, if the solutions are conductive, the detection lamp 12 corresponding to the solutions can be lightened, if the solutions are not conductive, the detection lamp 12 corresponding to the solutions can not be lightened, the teaching can be conducted more deeply through synchronous demonstration experiments on different solutions, and meanwhile, the conductivity of different solutions can be judged according to the brightness of the detection lamp 12.
The surfaces of the beakers 13 are provided with indication stickers 14, so that the names of each solution can be visually observed, and the conductive effects of different solutions can be conveniently distinguished.
The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.
Claims (6)
1. A demonstration teaching aid, comprising:
A vertical plate (2) is fixed at the top end of the placing bottom plate (1);
A beaker (13) for containing a solution, wherein a circular placing groove (3) is formed in the placing bottom plate (1), and the beaker (13) is arranged in the circular placing groove (3);
the clamping and positioning assembly is arranged in the placement bottom plate (1) and used for clamping and fixing the beaker (13) placed in the circular placement groove (3);
The communication display part comprises a detection lamp (12) arranged at the top end of a vertical plate (2), a power supply is further arranged in the vertical plate (2), a lifting slide plate (5) is arranged at the side end of the vertical plate (2) in a sliding mode, a first electrode rod (6) and a second electrode rod (7) which are used for penetrating into a solution in a beaker (13) are fixed in the lifting slide plate (5), a first lead (10) and a second lead (11) are respectively fixed at the top ends of the first electrode rod (6) and the second electrode rod (7), the first lead (10) and the second lead (11) are respectively connected with the positive electrode and the negative electrode of the power supply, and the detection lamp (12) is connected in series on the first lead (10);
The fixing component is arranged on the upper side of the lifting slide plate (5) and used for fixing the position of the lifting slide plate (5) after the lifting slide plate (5) ascends.
2. The demonstration teaching aid according to claim 1, wherein the clamping and positioning assembly comprises two first grooves (15) which are formed in the placement base plate (1) and communicated with the circular placement groove (3), arc-shaped clamping plates (8) are respectively arranged in the two first grooves (15) in a sliding mode, accommodating grooves (17) are respectively formed in the two arc-shaped clamping plates (8), clamping springs (16) are respectively fixed in the two accommodating grooves (17), and the two clamping springs (16) are respectively fixed in the two first grooves (15).
3. A demonstration teaching aid according to claim 2, characterised in that the cambered surfaces of both of the arcuate clamping plates (8) are provided with anti-slip pads.
4. The demonstration teaching aid according to claim 2, wherein the beaker (13) is provided with a plurality of beakers, the circular placing grooves (3) are provided with a plurality of groups, the clamping and positioning components are provided with a plurality of groups, and the clamping and positioning components are uniformly arranged in the placing base plate (1) and used for clamping the beakers (13) in the circular placing grooves (3), and the communication display part is provided with a plurality of groups.
5. A demonstration teaching aid according to any one of claims 1-3, characterized in that the fixing assembly comprises a first magnetic attraction block (9) fixed at the top end of the lifting slide plate (5), a fixing plate (4) is fixed at the side end of the vertical plate (2), and a first groove (15) magnetically connected with the first magnetic attraction block (9) is arranged at the bottom end of the fixing plate (4).
6. A demonstration teaching aid according to claim 4, characterised in that the surfaces of a plurality of said beakers (13) are provided with indicating stickers (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322792200.2U CN220895075U (en) | 2023-10-18 | 2023-10-18 | Solution conductivity demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322792200.2U CN220895075U (en) | 2023-10-18 | 2023-10-18 | Solution conductivity demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220895075U true CN220895075U (en) | 2024-05-03 |
Family
ID=90875375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322792200.2U Active CN220895075U (en) | 2023-10-18 | 2023-10-18 | Solution conductivity demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220895075U (en) |
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2023
- 2023-10-18 CN CN202322792200.2U patent/CN220895075U/en active Active
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