CN112071185A - Multi-functional teenagers teaching experiment platform - Google Patents
Multi-functional teenagers teaching experiment platform Download PDFInfo
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- CN112071185A CN112071185A CN202011030778.9A CN202011030778A CN112071185A CN 112071185 A CN112071185 A CN 112071185A CN 202011030778 A CN202011030778 A CN 202011030778A CN 112071185 A CN112071185 A CN 112071185A
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- 238000002474 experimental method Methods 0.000 title claims abstract description 34
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 66
- 239000002184 metal Substances 0.000 claims abstract description 66
- 238000000746 purification Methods 0.000 claims abstract description 38
- 238000003723 Smelting Methods 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims description 51
- 229910052782 aluminium Inorganic materials 0.000 claims description 37
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 22
- 239000008213 purified water Substances 0.000 claims description 19
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 3
- 239000008247 solid mixture Substances 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 12
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
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- 238000009825 accumulation Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
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- 229910052802 copper Inorganic materials 0.000 description 2
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/24—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for chemistry
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/36—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for zoology
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/38—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for botany
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/06—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes for surveying; for geography, e.g. relief models
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- Educational Technology (AREA)
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Abstract
The invention relates to a multifunctional teenager teaching experiment table which comprises an experiment table body, a base arranged on the experiment table body and teaching operation areas arranged on the base and used for different teaching contents, wherein the teaching operation areas comprise a mountain model demonstration area, an ecosystem establishing area, a water purification experiment area and a metal smelting area which are mutually isolated. The invention relates to a multifunctional teenager teaching experiment table, which comprises multidisciplinary knowledge points such as geography, physics, chemistry, biology and the like. Through the teaching device of integration, for crossing the subject teaching and establishing diversified teaching link, provide more audio-visual teaching experience.
Description
Technical Field
The invention relates to the technical field of education, in particular to a multifunctional adolescent teaching experiment table.
Background
The experiment table is a common teaching aid in schools, can achieve better teaching effect through the personal operation of teachers or students, and various teaching aids for different subjects including physics, chemistry, biology, geography and the like appear in the market at present,
for example, the geographic viewing teaching aid with the publication number of CN 203300130U, in the patent, a combination of pictures is generated by overlapping transparent pages with the pictures, so that students can view various distribution maps of mountains, rivers, resources and the like, but the students are difficult to feel visually in a paper written form, and the use way is single; the utility model discloses an enlarged observation culture tank with the notice number of CN 201142881Y, and the novel purpose of this use is to provide a multi-functional teenagers teaching laboratory bench enlarged observation culture tank. Comprises a big transparent spherical cylinder body, and a small transparent spherical cylinder body is eccentrically arranged in the big transparent spherical cylinder body. The invention has the beneficial effects that: the device has simple structure and principle, convenient operation and management, low capital investment and good educational effect. The patent can be used as an intuitive teaching aid for biological courses and scientific courses, such as a simple ecosystem with plants and animals, researching the components of the ecosystem and the mutual relation thereof, and observing the growth and distribution of root systems and the effect thereof on water and soil conservation. "however, the space is limited, the water source lacks fluidity, and the environment of the ecosystem cannot be simulated well.
But its teaching aid function singleness does not have a multi-functional teenagers teaching experiment table intuitional interdisciplinary experiment type teaching aid.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a multifunctional teenager teaching experiment table device which comprises a plurality of subject knowledge points such as geography, physics, chemistry, biology and the like. Through the teaching device of integration, for crossing the subject teaching and establishing diversified teaching link, provide more audio-visual teaching experience.
In order to achieve the purpose, the invention is realized by the following technical scheme: a multifunctional teenager teaching experiment table comprises an experiment table body, a base arranged on the experiment table body and teaching operation areas which are arranged on the base and used for different teaching contents, wherein the teaching operation areas comprise a mountain model demonstration area, an ecosystem establishing area, a water purification experiment area and a metal smelting area which are mutually isolated;
the mountain model demonstration area comprises a mountain model arranged on the base;
the ecological system establishing area comprises a river channel model and a water supply device and is used for simulating water circulation of the ecological system;
the water purification experimental area comprises a purified water source collecting area and a purified water source processing area, and the purified water source collecting area is communicated with a water flow channel of the river channel model;
the metal smelting zone comprises a heating device and a metal heating zone.
Preferably, the mountain model is provided with a plurality of pits, and teaching materials are placed in the pits.
Preferably, the river model comprises a flow blocking frame arranged on the base, the base and the flow blocking frame form a water flow channel, a water storage area is arranged inside the experiment table body and communicated with the water flow channel at one end of the flow blocking frame, and a communicated outlet is a water flow outlet.
Preferably, the water supply device comprises a water pump arranged in the water storage area, and a water outlet of the water pump is far away from the water outlet and is communicated with the water flow channel.
Preferably, a flow baffle is transversely arranged in the flow baffle frame, the flow baffle is lower than the flow baffle frame, and the flow baffle is positioned between the water outlet and the water outlet of the water pump.
As preferred, purification water source treatment area includes that a plurality of purified water that set up on the base place recess, water purification experimental materials place recess, aqueous purification splendid attire cup and aqueous purification filtration test tube, and aqueous purification splendid attire cup and aqueous purification filtration test tube set up and place between the recess is placed to the purified water and aqueous purification experimental materials.
Preferably, the heating device comprises a PTC controllable heating metal aluminum plate, a heating metal aluminum plate temperature display, a heating metal aluminum plate temperature controller and a heating metal aluminum plate switch which are electrically connected, and the heating metal aluminum plate temperature display is arranged on one side face of the experiment table body.
The metal smelting district includes electric connection's controllable heating metal aluminum plate of PTC, Arduino singlechip, LCD display screen, switch, heating metal aluminum plate temperature controller, and heating metal aluminum plate temperature controller includes rotary potentiometer, through rotary potentiometer, can control heating metal aluminum plate's temperature, and LCD display screen shows the temperature, and heating metal aluminum plate draws as the smelting of the tin metal in the mountain range model.
Preferably, the metal heating zone comprises a heating metal aluminum plate, and a smelting metal placing groove and a smelting tool placing groove which are arranged on one side of the heating metal aluminum plate.
Preferably, the bottom end of the heating metal aluminum plate is fixedly arranged on the experiment table body through a plurality of supporting columns. The support column is a copper column.
Preferably, the teaching material comprises a solid mixture of tin and sand.
Compared with the prior art, the invention has the beneficial effects that: the invention organically combines single subject knowledge through experiment links (including physics, chemistry, biology, geography and the like) through a comprehensive physical model, and intuitively displays flat textbook knowledge through the physical model and the experiment;
1. the students use the clamping tool to take out the tin metal ore from the mountains by observing the mountains model and place the tin metal ore in a metal smelting area, the tin ore is heated to more than 231.89 ℃ (the melting point of the tin metal) by a heating device, the tin is extracted from the mixture, and the experimental process comprises various geographical, chemical and physical knowledge;
2. the students can observe the development conditions of aquatic weeds and fishes and the accumulation condition of river silt and the like in the ecological system by building the ecological system, preliminarily learn to observe the stability of the ecological system, deepen the understanding and comprehension of the ecological balance in the nature, and can also cultivate the cooperative consciousness, the exploration consciousness, the practical ability, the problem solving analysis ability, the expression and communication ability and the like of the students through the design, the manufacture and the observation of the ecological system;
3. through using the river among the ecosystem, carry out the water purification experiment and explore, the student can know the basic material, the fundamental process and the principle of aqueous purification, and simultaneously, the water source of aqueous purification can also circulate and use to ecosystem, and this physical model provides a comprehensive teaching mode for the teaching of school's course, family education and education institution, and simultaneously, to the objective needs of difference, the physical model can also carry out the function and expand, adapts to the teaching condition of reality.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a mountain model according to the present invention;
FIG. 3 is a schematic view of a base structure of the present invention;
FIG. 4 is a schematic structural view of a cross section of a river model according to the present invention;
FIG. 5 is a schematic diagram of a water purification experimental section according to the present invention;
FIG. 6 is a schematic view of a metal-making zone according to the present invention.
Reference numerals shown in the drawings: 1. a mountain model demonstration area; 101. teaching materials; 2. an ecosystem building area; 21. a flow blocking frame; 22. a flow baffle plate; 23. a water storage area; 24. a water flow outlet; 3. the water purification experimental material is placed in the groove; 4. a water purification containing cup; 5. a water purification and filtration test tube; 6. purified water is placed in the groove; 7. a purified water source collecting area; 8. heating a metal aluminum plate switch; 9. a temperature controller for heating the metal aluminum plate; 10. heating the metal aluminum plate temperature display; 11. smelting a metal placing groove; 12. a smelting tool placing groove; 13. a support pillar; 14. heating the metal aluminum plate; 15. a water pump; 16. a test bed body; 17. a base.
Detailed Description
The invention is further illustrated by combining a specific embodiment, as shown in fig. 1 to 6, a multifunctional teenager teaching experiment table comprises an experiment table body 16, a base in joggle joint with the experiment table body 16, and teaching operation areas which are arranged on the base and used for different teaching contents, wherein the teaching operation areas comprise a mountain range model demonstration area 1, an ecological system establishing area 2, a water purification experiment area and a metal smelting area which are mutually isolated and sequentially distributed on the base 17, grooves used for placing the teaching operation areas are formed in the base, and the mountain range model demonstration area 1, the ecological system establishing area 2, the water purification experiment area and the metal smelting area are separated through different grooves.
The mountain model demonstration area 1 comprises a mountain model arranged on a base, a plurality of pits are arranged on the mountain model, teaching materials are placed in the pits, and the teaching materials comprise solid mixtures of tin and silt.
The metal smelting district includes heating device and the metal zone of heating, heating device includes electric connection's the controllable heating metal aluminum plate of PTC, Arduino singlechip, heating metal aluminum plate temperature controller 9, heating metal aluminum plate temperature display 10 and heating metal aluminum plate switch 8, heating metal aluminum plate temperature display 10 sets up the side at laboratory bench body 16, heating metal aluminum plate temperature controller 9 includes the rotary potentiometer, through the rotary potentiometer, can control the temperature of heating metal aluminum plate 14, heating metal aluminum plate temperature display 10 shows the temperature, heating metal aluminum plate 14 draws as the smelting of the tin metal in the mountain range model.
The metal heating zone is including heating metal aluminum plate 14 and setting up and placing recess 11 and smelting tool at the smelting metal of heating metal aluminum plate 14 one side and placing recess 12, and heating metal aluminum plate 14 bottom sets firmly on laboratory bench body 16 through a plurality of support columns 13, and support column 13 is the copper post.
The mountain range model demonstration area 1 and the metal smelting area can be mutually supported and taught, students use clamping tool to take out tin metal ore from the mountain range and place the metal smelting area through observing the mountain range model, heat to above 231.89 ℃ (tin metal melting point) through heating device, extract tin from the mixture, contain each item geography, chemistry and physics knowledge in the experimentation.
The ecosystem building area 2 comprises a river channel model and a water supply device and is used for simulating water circulation of the ecosystem. River model is including setting up fender stream frame 21 on the base, fender stream frame 21 is transparent material's glass or ya keli board, the student of being convenient for observes, base 17 and fender stream frame 21 sealing connection form the rivers passageway, 16 inside water storage district 23 that is provided with of laboratory bench body, water storage district 23 communicates at the one end of fender stream frame 21 with the rivers passageway, the export of intercommunication is rivers export 24, water supply installation is including setting up the water pump 15 in water storage district 23, the delivery port of water pump 15 is in the rivers passageway intercommunication of keeping away from the position of rivers export 24 and river model.
The flow blocking plate 22 is transversely arranged in the flow blocking frame 21, the flow blocking plate 22 is lower than the flow blocking frame 21, the flow blocking plate 22 is positioned between the water outlet 24 and the water outlet of the water pump 15, the flow blocking plate 22 and the flow blocking frame 21 can form a water storage area in a certain range, and when water in the water storage area is higher than the flow blocking plate 22, the water flows back into the water storage area 23 arranged in the experiment table body 16 and is pumped back through the water pump to realize circulation.
The students can observe the development conditions of the aquatic plants and the fishes in the ecological system, the accumulation condition of river sediment and the like by building the ecological system, preliminarily learn to observe the stability of the ecological system, and deepen the understanding and comprehension of the ecological balance in the nature. Through the design, manufacture and observation of the ecosystem, the cooperative consciousness, the exploration consciousness, the practical ability, the problem solving analysis ability, the expression and communication ability and the like of students can be cultivated.
The water purification experimental area comprises a purified water source collecting area 7 and a purified water source treatment area, wherein the purified water source collecting area 7 is in a circular shape and protrudes outwards from a base 17 to form a water collecting area, and the purified water source collecting area 7 is communicated with one side of a water flow channel.
The water purification source treatment area comprises a purified water placing groove 6, a water purification experimental material placing groove 3, a water purification containing cup 4 and a water purification filtering test tube 5 which are arranged on a base, the purified water placing groove 6 and the water purification experimental material placing groove 3 are grooves formed in the base 17, the purified water placing groove 6 is three circular grooves which are arranged in parallel, the water purification experimental material placing groove 3 is eight rectangular grooves which are divided into two rows and are used for containing the water purification material area and are provided with materials such as granite pebbles, porcelain sand, filter paper, active carbon, quartz sand and the like, and students can carry out water purification experiments through the materials in the material area; the water purification container cup 4 and the water purification filter tube 5 are arranged between the purified water placing groove 6 and the water purification experimental material placing groove 3.
Through using the river among the ecosystem, carry out the water purification experiment and explore, the student can know the basic material, the fundamental process and the principle of aqueous cleaning, and simultaneously, the water source of aqueous cleaning can also circulate and use in the ecosystem.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
Claims (10)
1. The utility model provides a multi-functional teenagers teaching experiment platform, includes laboratory bench body (16) and installs base (17) on laboratory bench body (16), its characterized in that: the device also comprises teaching operation areas which are arranged on the base and used for different teaching contents, wherein the teaching operation areas comprise a mountain model demonstration area (1), an ecological system establishing area (2), a water purification experiment area and a metal smelting area which are mutually isolated;
the mountain model demonstration area (1) comprises a mountain model arranged on a base (17);
the ecological system establishing area (2) comprises a river channel model and a water supply device and is used for simulating water circulation of the ecological system;
the water purification experimental area comprises a purified water source collecting area (7) and a purified water source treatment area, and the purified water source collecting area (7) is communicated with a water flow channel of the river channel model;
the metal smelting zone comprises a heating device and a metal heating zone.
2. The multi-functional teenagers teaching laboratory bench of claim 1, wherein: the mountain model is provided with a plurality of pits, and teaching materials (101) are placed in the pits.
3. The multi-functional teenagers teaching laboratory bench of claim 1, wherein: river course model is including setting up fender flow frame (21) on the base, base and fender flow frame (21) form the rivers passageway, laboratory bench body (16) inside is provided with water storage district (23), water storage district (23) and rivers passageway are in the one end intercommunication of fender flow frame (21), and the export of intercommunication is rivers export (24).
4. The multi-functional teenagers teaching laboratory bench of claim 1, wherein: the water supply device comprises a water pump (15) arranged in a water storage area (23), and a water outlet of the water pump (15) is far away from a water flow outlet (24) and is communicated with a water flow channel.
5. The multi-functional teenagers teaching laboratory bench of claim 3 wherein: a flow baffle plate (22) is transversely arranged in the flow baffle frame (21), the flow baffle plate (22) is lower than the flow baffle frame (21), and the flow baffle plate (22) is positioned between a water outlet (24) and a water outlet of the water pump (15).
6. The multi-functional teenagers teaching laboratory bench of claim 1, wherein: purify water source treatment zone and place recess (6), water purification experimental materials including a plurality of purified water that set up on the base and place recess (3), aqueous purification splendid attire cup (4) and aqueous purification filtration test tube (5) set up it places between recess (3) to purify water to place recess (6) and aqueous purification experimental materials.
7. The multi-functional teenagers teaching laboratory bench of claim 1, wherein: the heating device comprises a PTC controllable heating metal aluminum plate, a heating metal aluminum plate temperature display (10), a heating metal aluminum plate temperature controller (9) and a heating metal aluminum plate switch (8) which are electrically connected, wherein the heating metal aluminum plate temperature display (10) is arranged on one side face of the experiment table body (16).
8. The multi-functional teenagers teaching laboratory bench of claim 1, wherein: the metal heating zone comprises a heating metal aluminum plate (14), and a smelting metal placing groove (11) and a smelting tool placing groove (12) which are arranged on one side of the heating metal aluminum plate (14).
9. The multi-functional teenagers teaching laboratory bench of claim 8, wherein: the bottom end of the heating metal aluminum plate is fixedly arranged on the experiment table body (16) through a plurality of supporting columns (13).
10. The multi-functional teenagers teaching laboratory bench of claim 1, wherein: the teaching material (101) comprises a solid mixture of tin and sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011030778.9A CN112071185A (en) | 2020-09-27 | 2020-09-27 | Multi-functional teenagers teaching experiment platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011030778.9A CN112071185A (en) | 2020-09-27 | 2020-09-27 | Multi-functional teenagers teaching experiment platform |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201534872U (en) * | 2009-09-24 | 2010-07-28 | 云南临沧鑫圆锗业股份有限公司 | Heating device applied in zone melting high-purity metal equipment |
| CN205158786U (en) * | 2015-11-23 | 2016-04-13 | 哈尔滨瑞燊科技发展有限责任公司 | A teaching aid for simulating natural water cycle |
| CN205804272U (en) * | 2016-06-16 | 2016-12-14 | 安徽师范大学 | A kind of ecosystem water purification model |
| CN108538181A (en) * | 2018-04-24 | 2018-09-14 | 佛山市尚柏科技有限公司 | A kind of sewage disposal multifunctional combination test model |
| CN210131649U (en) * | 2019-06-13 | 2020-03-10 | 吉林建筑科技学院 | Novel special physical experiment table for students |
| CN212434078U (en) * | 2020-09-27 | 2021-01-29 | 杭州辛巳科技有限公司 | Multi-functional teenagers teaching experiment platform |
-
2020
- 2020-09-27 CN CN202011030778.9A patent/CN112071185A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201534872U (en) * | 2009-09-24 | 2010-07-28 | 云南临沧鑫圆锗业股份有限公司 | Heating device applied in zone melting high-purity metal equipment |
| CN205158786U (en) * | 2015-11-23 | 2016-04-13 | 哈尔滨瑞燊科技发展有限责任公司 | A teaching aid for simulating natural water cycle |
| CN205804272U (en) * | 2016-06-16 | 2016-12-14 | 安徽师范大学 | A kind of ecosystem water purification model |
| CN108538181A (en) * | 2018-04-24 | 2018-09-14 | 佛山市尚柏科技有限公司 | A kind of sewage disposal multifunctional combination test model |
| CN210131649U (en) * | 2019-06-13 | 2020-03-10 | 吉林建筑科技学院 | Novel special physical experiment table for students |
| CN212434078U (en) * | 2020-09-27 | 2021-01-29 | 杭州辛巳科技有限公司 | Multi-functional teenagers teaching experiment platform |
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