CN216749048U - Reversible reaction of chemistry show teaching aid - Google Patents
Reversible reaction of chemistry show teaching aid Download PDFInfo
- Publication number
- CN216749048U CN216749048U CN202220318844.0U CN202220318844U CN216749048U CN 216749048 U CN216749048 U CN 216749048U CN 202220318844 U CN202220318844 U CN 202220318844U CN 216749048 U CN216749048 U CN 216749048U
- Authority
- CN
- China
- Prior art keywords
- reaction
- cup
- reaction cup
- teaching aid
- support
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 90
- 230000002441 reversible effect Effects 0.000 title claims abstract description 16
- 238000001802 infusion Methods 0.000 claims abstract description 13
- 239000011521 glass Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 15
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052740 iodine Inorganic materials 0.000 abstract description 8
- 239000011630 iodine Substances 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 5
- 238000002474 experimental method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 239000012295 chemical reaction liquid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 229940099596 manganese sulfate Drugs 0.000 description 1
- 235000007079 manganese sulphate Nutrition 0.000 description 1
- 239000011702 manganese sulphate Substances 0.000 description 1
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- JLKDVMWYMMLWTI-UHFFFAOYSA-M potassium iodate Chemical compound [K+].[O-]I(=O)=O JLKDVMWYMMLWTI-UHFFFAOYSA-M 0.000 description 1
- 239000001230 potassium iodate Substances 0.000 description 1
- 235000006666 potassium iodate Nutrition 0.000 description 1
- 229940093930 potassium iodate Drugs 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model provides a chemical reversible reaction display teaching aid which comprises a support, wherein a cup holder is arranged on the support, a reaction cup is arranged on the cup holder, a cup cover is arranged at the top of the reaction cup, a liquid outlet is formed in the bottom of the reaction cup, a transfusion hose is connected to the liquid outlet, a flow regulator is arranged in the middle of the transfusion hose, a jack is formed in the cup cover, a plug matched with the jack is arranged at one end, away from the liquid outlet, of the transfusion hose, a background plate is arranged on the support, and an LED lamp is arranged on the background plate. According to the utility model, the background plate and the LED lamp are arranged at the rear side of the reaction cup, so that students can see the reaction in the reaction cup more clearly, and the classroom demonstration effect is improved; the infusion hose is arranged, so that iodine in the solution can be extracted and recovered after the experiment is finished, and the solution is convenient to use; the reaction is carried out in a closed state, so that the generated gas is prevented from leaking, and meanwhile, the dropping funnel and the flow regulator are arranged, so that the liquid in the reaction cup is convenient to discharge.
Description
Technical Field
The utility model belongs to the technical field of chemical teaching equipment, and relates to a chemical reversible reaction display teaching aid.
Background
In classroom teaching, related experiments are often required to show chemical reactions, so that related chemical reaction processes are visually and vividly shown to students, and the students can understand the chemical reactions conveniently.
In the process of chemical learning, reversible reactions are important reactions, specifically, under certain conditions, a chemical reaction can be generally carried out from left to right or from right to left according to a reaction equation, which is called reversibility of the chemical reaction.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a chemical reversible reaction display teaching aid aiming at the problems in the prior art.
Therefore, the utility model adopts the following technical scheme:
the utility model provides a reversible reaction show teaching aid of chemistry, includes the support, be equipped with the glass stand that is loop configuration on the support, the cup shelf location has the reaction cup, the reaction cup is transparent glass cup, the top of reaction cup is equipped with the bowl cover, and the bottom of reaction cup is equipped with the leakage fluid dram, leakage fluid dram department is connected with the infusion hose, the middle part of infusion hose is equipped with flow regulator, be equipped with the jack on the bowl cover, the one end that the leakage fluid dram was kept away from to the infusion hose is equipped with the plug with jack looks adaptation, the plug can insert in the jack, be equipped with the background board on the support, the background board is located glass stand department, be equipped with the LED lamp on the background board.
Furthermore, a dropping funnel is arranged in the middle of the infusion hose, and the flow regulator is positioned between the dropping funnel and the reaction cup.
Further, the support includes the base, be equipped with the sleeve that is vertical setting on the base, be equipped with branch in the sleeve, branch can follow sleeve length direction and remove, and telescopic lateral wall is equipped with the screw, be equipped with the screw in the screw.
Furthermore, a feed inlet is arranged on the cup cover.
Further, the top cover of reaction cup is equipped with the snap ring, the reaction cup is located to the glass stand cover, the snap ring supports and leans on the glass stand.
Further, the bottom of the reaction cup is of a conical structure with a large top and a small bottom.
Furthermore, scales are arranged on the reaction cup.
The utility model has the beneficial effects that: the background plate and the LED lamp are arranged on the rear side of the reaction cup, so that students can see the reaction in the reaction cup more clearly, and the classroom demonstration effect is improved; the infusion hose is arranged, so that iodine in the solution can be extracted and recovered after the experiment is finished, and the solution is convenient to use; the reaction is carried out in a closed state, so that the generated gas is prevented from leaking, and meanwhile, the dropping funnel and the flow regulator are arranged, so that the liquid in the reaction cup is convenient to discharge.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
in the figure, 1-bracket, 101-base, 102-sleeve, 103-support rod, 104-screw hole, 105-screw, 2-cup holder, 3-reaction cup, 4-cup cover, 5-feed inlet, 6-liquid outlet, 7-transfusion hose, 8-flow regulator, 9-jack, 10-plug, 11-dropping funnel, 12-background plate, 13-LED lamp, 14-scale, 15-sealing plug and 16-snap ring.
Detailed Description
The utility model is described in detail below with reference to the accompanying drawings:
as shown in fig. 1 and 2, a reversible chemical reaction display teaching aid comprises a support 1, for the convenience of display, the height of the support 1 can be adjusted, specifically, the support 1 comprises a base 101, a sleeve 102 is vertically arranged on the base 101, a support rod 103 is arranged in the sleeve 102, the support rod 103 can move in the sleeve 102 along the length direction thereof, a screw hole 104 is arranged on the side wall of the sleeve 102, a screw 105 is arranged in the screw hole 104, the position of the support rod 103 in the sleeve 102 can be fixed through the screw 105, a cup holder 2 in an annular structure is arranged on the support 1, specifically, the cup holder 2 is arranged at the top end of the support rod 103, a reaction cup 3 is arranged on the cup holder 2, the reaction cup 3 is a transparent glass and is used for containing a reactant to react, a snap ring 16 is sleeved on the top of the reaction cup 3, the snap ring 16 is sleeved on the reaction cup holder 3, the cup holder 16 abuts against the cup holder 2, a cup cover 4 is arranged at the top end of the reaction cup 3, the cup cover 4 is provided with a feeding port 5, the feeding port 5 is used for adding experimental related chemical reagents into the reaction cup 3, the feeding port 5 is also provided with a sealing plug 15, the bottom of the reaction cup 3 is provided with a liquid outlet 6, the liquid outlet 6 is connected with a transfusion hose 7, the middle part of the transfusion hose 7 is provided with a flow regulator 8, the flow regulator 8 adopts the flow regulator for the existing medical transfusion device, the flow regulator 8 is used for regulating the flow rate of liquid in the transfusion hose 7, the cup cover 4 is provided with a jack 9, one end of the transfusion hose 7 far away from the liquid outlet 6 is provided with a plug 10 matched with the jack 9, the plug 10 can be inserted into the jack 9 when the reaction is carried out so as to fix and place the transfusion hose 7, the middle part of the transfusion hose 7 is provided with a dropping funnel 11, the dropping funnel 11 only has the existing medical transfusion device, the flow regulator 8 is positioned between the dropping funnel 11 and the reaction cup 3, the dropping funnel 11 allows the liquid in the reaction cup 3 to be discharged from the transfusion hose 7 while preventing the gas generated in the reaction cup 3 from being discharged to the outside.
Be equipped with background board 12 on the support 1, background board 12 is located glass stand 2 department, and background board 12 is its colour that can be convenient for observe reactant in the reaction cup 3 for white, in addition, still is equipped with LED lamp 13 on the background board 12, can make the reaction in the student can be more clear observation reaction cup after opening LED lamp 13.
In order to facilitate the discharge of the whole reaction solution in the reaction vessel after the reaction, the bottom of the reaction vessel 3 has a tapered structure with a large top and a small bottom, and the reaction vessel 3 is provided with a scale 14 in order to facilitate the observation of the volume of the liquid in the reaction vessel 3.
The use mode of the utility model is as follows:
before use, firstly, the bracket 1 is placed on a platform and the height of the bracket 1 is adjusted, the bracket 1 is adjusted to the proper height so as to be convenient for students to observe, specifically, only the screw 105 is needed to be unscrewed, the supporting rod 103 is moved to the proper position and then the screw 105 is screwed, when a reversible reaction experiment is carried out, the iodine clock reaction is adopted, firstly, the flow regulator 8 on the infusion hose 7 is closed, the prepared 50ml of A solution and 50ml of B solution are added into the reaction cup 3, the cup cover 4 is covered on the reaction cup 3, the plug 10 is inserted into the jack 9, the A solution is prepared by weighing 3.9g of malonic acid, 0.8g of manganese sulfate and 0.075g of water-soluble starch, the solution is dissolved in water to prepare 250ml of solution, then 10ml of 2mol/L sulfuric acid is added for acidification, the B solution is prepared by preparing the method that 2.1g of potassium iodate is dissolved in water to prepare 50ml solution, and finally, the 50ml of C solution is injected into the reaction cup 3 through the feed inlet 5 on the 4 to be mixed with the A solution and the B solution, the preparation method of the solution C comprises the steps of measuring 20ml of 30% hydrogen peroxide, adding water to dilute the hydrogen peroxide into 50ml of the solution, changing the reaction solution from colorless to blue-purple after the reaction starts, fading to colorless after a few seconds, then gradually deepening in amber color, enabling the blue-purple to repeatedly appear, disappearing after a few seconds, and periodically changing in such a way, turning on the LED lamp 13 when the reaction is carried out, enabling students to more clearly see the reaction phenomenon in the reaction cup 3 under the reflection of the background plate 12, and improving the experimental effect. Some gas is generated in the reaction process, and the generated gas can be conveyed into the transfusion hose 7 through the jack 9 to prevent the gas from leaking.
Kerosene is added into the reaction cup 3 through the feed inlet 5 after reaction is carried out for a period of time, iodine in reaction liquid is extracted, the iodine in the reaction liquid is recovered for convenient utilization, the iodine in the reaction liquid can float on the upper surface of the reaction liquid after the kerosene is added, containers such as a beaker can be placed below the reaction cup 3 at the moment, the plug 10 is taken down, the jack 9 is plugged, then the bottom end of the infusion hose 7 is placed into the beaker, the flow of liquid in the infusion hose 7 is adjusted through the flow adjuster 8, the liquid at the lower part of the reaction cup 3 is discharged, the flow adjuster 8 is closed after the liquid is discharged, the iodine is left in the reaction cup 3, and the recovery of the iodine is completed.
Claims (7)
1. The utility model provides a reversible reaction show teaching aid of chemistry which characterized in that, includes support (1), be equipped with glass stand (2) that is the loop configuration on support (1), install reaction cup (3) on glass stand (2), reaction cup (3) are the clear glass cup, the top of reaction cup (3) is equipped with bowl cover (4), and the bottom of reaction cup (3) is equipped with leakage fluid dram (6), leakage fluid dram (6) department is connected with infusion hose (7), the middle part of infusion hose (7) is equipped with flow regulator (8), be equipped with jack (9) on bowl cover (4), the one end that leakage fluid dram (6) were kept away from in infusion hose (7) is equipped with plug (10) with jack (9) looks adaptation, plug (10) can insert in jack (9), be equipped with background board (12) on support (1), background board (12) are located glass stand (2), and the background plate (12) is provided with an LED lamp (13).
2. A reversible chemical reaction display teaching aid as claimed in claim 1, characterized in that a dropping funnel (11) is arranged in the middle of the infusion hose (7), and the flow regulator (8) is located between the dropping funnel (11) and the reaction cup (3).
3. A reversible chemical reaction display teaching aid as claimed in claim 1, wherein the support (1) comprises a base (101), a vertically arranged sleeve (102) is arranged on the base (101), a support rod (103) is arranged in the sleeve (102), the support rod (103) can move along the length direction of the sleeve (102), a screw hole (104) is arranged on the side wall of the sleeve (102), and a screw (105) is arranged in the screw hole (104).
4. A reversible chemical reaction display teaching aid as claimed in claim 1, wherein the cup cover (4) is provided with a feed opening (5), and a sealing plug (15) is arranged at the feed opening (5).
5. A reversible chemical reaction display teaching aid as claimed in claim 1, characterized in that the top cover of reaction cup (3) is equipped with a snap ring, cup holder (2) is equipped on reaction cup (3), and the snap ring leans against on cup holder (2).
6. A reversible chemical reaction display teaching aid according to claim 1, characterized in that the bottom of the reaction cup (3) is a cone structure with big top and small bottom.
7. A reversible chemical reaction display teaching aid as claimed in claim 1, characterized in that the reaction cup (3) is provided with graduations (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220318844.0U CN216749048U (en) | 2022-02-17 | 2022-02-17 | Reversible reaction of chemistry show teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220318844.0U CN216749048U (en) | 2022-02-17 | 2022-02-17 | Reversible reaction of chemistry show teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216749048U true CN216749048U (en) | 2022-06-14 |
Family
ID=81917835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220318844.0U Expired - Fee Related CN216749048U (en) | 2022-02-17 | 2022-02-17 | Reversible reaction of chemistry show teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216749048U (en) |
-
2022
- 2022-02-17 CN CN202220318844.0U patent/CN216749048U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220614 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |