CN216419418U

CN216419418U - Green miniature chemical experiment device

Info

Publication number: CN216419418U
Application number: CN202122842384.XU
Authority: CN
Inventors: 皇兵
Original assignee: MIDDLE SCHOOL ATTACHED TO SUN TAT-SEN UNIVERSITY
Current assignee: MIDDLE SCHOOL ATTACHED TO SUN TAT-SEN UNIVERSITY
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-05-03
Anticipated expiration: 2031-11-18

Abstract

The utility model relates to a middle school chemistry experiment instrument technical field, more specifically relates to a green miniature chemistry experiment device, including at least one reaction flask, first medical transfer line, the medical transfer line of second, first medical transfer line with the medical transfer line of second all with the reaction flask peg graft back with the inside intercommunication of reaction flask. The utility model aims to overcome the not enough of prior art, provide a miniature chemistry experiment device of green, utilize current little reaction flask and medical transfer line equipment to form, it is simple and convenient to draw materials, the low price easily promotes.

Description

Green miniature chemical experiment device

Technical Field

The utility model relates to a middle school chemistry experiment instrument technical field, more specifically relates to a green miniature chemistry experiment device.

Background

The existing chemical experiment instrument has high instrument cost, large volume and large capacity, is heavy, and is easy to cause waste when some simple basic experiments are carried out. The use thought of the existing micro instrument is inconsistent with that of the conventional instrument, and the micro instrument is not beneficial to students to construct a good thinking model for chemical experiments.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, and provides a green miniature chemical experimental device which is formed by assembling the prior small reaction bottle and a medical infusion tube, and has the advantages of convenient material drawing and low price.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model provides a green miniature chemical experiment device, includes at least one reaction flask, first medical transfer line, the medical transfer line of second, first medical transfer line with the medical transfer line of second all with the reaction flask peg graft back with the inside intercommunication of reaction flask.

The reaction bottle of the utility model is used for containing liquid used in experiments and can be a bottle or a test tube; the first medical infusion tube and the second medical infusion tube are both airflow channels, and liquid can be introduced from the first medical infusion tube and the second medical infusion tube according to experimental requirements; the first medical infusion tube and the second medical infusion tube are both communicated with the reaction bottle in an inserting way. Usually, the volume of the adopted small reaction bottle is 2ml or 3 ml, the small reaction bottle can be obtained through online purchase, the price is about 0.5 yuan/piece, the medical infusion tube is less than 2 yuan/piece, and the small reaction bottle is common equipment and convenient to obtain, the cost of the whole set of device is low, and compared with a glass bottle for common chemical experiments, the whole set of experimental device can be purchased at the price of one common bottle. If the medical infusion tube is not long enough, the end part of the medical infusion tube can be connected with an extension tube of the medical infusion tube, the price is 2.6 yuan/piece, and the medical infusion tube is very cheap.

Preferably, the reaction bottle comprises a bottle body for containing liquid and a plug, wherein the plug is detachably connected with the bottle body; the first medical infusion tube and the second medical infusion tube are inserted into the plug.

Preferably, the reaction bottle comprises a bottle body for containing liquid and a plug, wherein the plug is detachably connected with the bottle body; the first medical infusion tube and the second medical infusion tube are both inserted into the plug.

Preferably, the fixing device comprises a hanging part and a fixing part which are connected with each other, and the fixing part is also detachably connected with the bottle body.

Preferably, a magnetic attraction element or a magic tape or a hook is arranged on the hanging part.

Preferably, the fixing part comprises a movably inserted ribbon and a buckle, one end of the ribbon is connected with one end of the hanging part, and the other end of the ribbon is a free end; the eye-splice is connected with the other end of the hanging part.

Preferably, a plurality of first jacks are sequentially arranged along the length direction of the ribbon, a second jack and a bolt are arranged in the inserting buckle, the ribbon is inserted into the second jack, and the bolt is inserted into the first jack.

Preferably, the depth of the first medical infusion tube and the second medical infusion tube inserted into the bottle body can be adjusted.

Preferably, the medical sterile three-way cock further comprises a medical sterile three-way cock body, wherein the medical sterile three-way cock body comprises a first interface, a second interface and a third interface, the first interface is communicated with the first medical infusion tube, the second interface is communicated with the second medical infusion tube, and the third interface is communicated with the reaction bottle.

Preferably, the reaction bottle comprises a first reaction bottle and a second reaction bottle, the first reaction bottle is communicated with the third interface, and the second medical infusion tube is further communicated with the second reaction bottle.

Preferably, still include at least one third reaction bottle, fourth medical transfer line, the third reaction bottle locate first reaction bottle with in the middle of the second reaction bottle, second medical transfer line one end and second interface intercommunication, the other end and third ware laboratory vessel intercommunication, fourth medical transfer line one end and third reaction bottle intercommunication, the other end and second reaction bottle intercommunication.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the experimental device is simple and convenient in material taking and low in price, and can meet the requirement of demonstration experiments;

(2) through being fixed in the reaction flask through fixing device and showing and carrying out the demonstration of chemical experiment on the teaching board, make the student can clearly watch the experiment overall process on the seat, have better demonstration effect.

(3) A plurality of reaction bottles can be connected in series according to requirements to carry out different experiments;

(4) the device can be used for carrying out experiments on harmful gases, has a tail gas removing function, is more environment-friendly and pollution-free;

(5) the experimental device is simple and convenient to connect and detach, various in combination and wide in application range.

Drawings

FIG. 1 is a schematic view of an embodiment 1 of a green micro chemical experimental apparatus of the present invention;

FIG. 2 is a schematic structural view of the fixing device;

FIG. 3 is a schematic view of the buckle;

fig. 4 is a schematic structural view showing that the insertion depth of a first medical infusion tube and the insertion depth of a second medical infusion tube in embodiment 1 of the green micro chemical experimental apparatus of the present invention are different;

FIG. 5 is a schematic view of the structure of an embodiment 2 of a green micro chemical experimental apparatus of the present invention;

FIG. 6 is a schematic view of the structure of an embodiment 3 of a green micro chemical experimental apparatus of the present invention;

FIG. 7 is a schematic view of the structure of an embodiment 4 of a green micro chemical experimental apparatus of the present invention;

FIG. 8 is a schematic view of the structure of an embodiment 5 of a green micro chemical experimental apparatus according to the present invention;

the graphic symbols are illustrated as follows:

1. a reaction bottle; 11. a bottle body; 12. a plug; 21. a first reaction flask; 22. a second reaction flask; 23. A third reaction bottle; 24. a fourth reaction flask; 31. a first medical infusion tube; 32. a second medical infusion tube; 33. A third medical infusion tube; 34. a fourth medical infusion tube; 4. a fixing device; 41. a hanging part; 42. a fixed part; 421. binding a belt; 4211. a first jack; 422. inserting and buckling; 4221. a second jack; 4222. a bolt; 5. a medical sterile three-way cock; 51. a first interface; 52. a second interface; 53. and a third interface.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Example 1

As shown in fig. 1 to 4, a first embodiment of a green micro chemical experimental apparatus of the present invention comprises at least one reaction bottle 1, a first medical infusion tube 31, a second medical infusion tube 32, and a fixing device 4 for suspending and fixing the reaction bottle 1, wherein the fixing device 4 is detachably connected to the reaction bottle 1; the first medical infusion tube 31 and the second medical infusion tube 32 are connected with the interior of the reaction bottle 1 after being spliced with the reaction bottle 1.

As an embodiment of the utility model, the reaction bottle 1 comprises a bottle body 11 for containing liquid and a plug 12, and the plug 12 is detachably connected with the bottle body 11; the first medical infusion tube 31 and the second medical infusion tube 32 are inserted into the plug 12.

Bottle body 11 is used for holding the required liquid of chemistry experiment, and stopper 12 lid closes and bottle body 11 is last, realizes sealed effect, prevents gas leakage among the experimentation.

As an embodiment of the utility model, still including being used for hanging fixed fixing device 4 with reaction flask 1, fixing device 4 can dismantle with reaction flask 1 and be connected.

Current chemical laboratory glassware, inconvenient hanging usually, consequently be not convenient for demonstrate the experiment of imparting knowledge to students, can only put laboratory glassware on the desktop, the mr utilizes laboratory glassware to carry out experimental operation, and the student can only be around the laboratory table and watch the experiment, and because the student number is numerous, can't let each student can both clearly observe the experimentation, and the demonstration effect is relatively poor.

And fixing device is used for hanging the reaction flask and is fixed in teaching show board on, can be fixed in the experimental apparatus and demonstrate that the chemistry experiment is gone up in the show teaching board, makes the student can clearly see the experiment overall process on the seat, has better demonstration effect. Specifically, be connected fixing device and reaction bottle through one side of fixing device, utilize fixing device's opposite side and teaching show board actuation fixed, or bond or articulate, make whole chemistry experiment can demonstrate on the teaching board, the student of being convenient for observes, and need not the student and all around on the reaction bottle next door, especially to having the experiment of poisoning gas, can also further promote the security. Can dismantle between fixing device and the reaction bottle and be connected, on the one hand can be convenient for wash the reaction bottle, on the other hand can be convenient for be applied to different household utensils with fixing device, reaches the sharing of part, has practiced thrift the cost, and has increased the range of application, moreover, can be convenient for change in time when fixing device damages, and can not cause the waste of reaction bottle.

As an embodiment of the present invention, the fixing device 4 includes a hanging portion 41 and a fixing portion 42 connected to each other, and the fixing portion 42 is detachably connected to the bottle body 11.

The fixing portion 42 is used for fixing the bottle body 11 so that the bottle body 11 can be connected with the fixing device 4; the hanging part 41 is used for connecting the fixing part 42 and connecting and fixing the fixing part 42 and the teaching demonstration board.

As an embodiment of the present invention, a magnetic attraction member or a hook or hook is provided on the hanging portion 41.

Because the teaching display board is generally made of iron, the hanging part 41 is provided with the magnetic attraction element which can make the hanging part 41 attracted on the teaching display board by using magnetic force so as to fix the bottle body 11; certainly, the magic tape can be adhered to the teaching display board and the hanging part 41 at the same time, the bottle body 11 is fixed by using the adhering function of the magic tape, but the adhering firmness is ensured according to the size of the bottle body 11 and the adhering strength requirement of the magic tape on the amount of liquid to be contained, and the magic tape cannot drop accidentally; as another embodiment, the hanging part 41 may be provided with a hook, and the bottle body 11 may be fixed to the teaching demonstration board by hanging the hook on the upper edge of the teaching demonstration board.

As an embodiment of the present invention, the fixing portion 42 includes a ribbon 421 and a buckle 422 that can be movably inserted, one end of the ribbon 421 is connected to one end of the hanging portion 41, and the other end is a free end; the insertion button 422 is connected to the other end of the hanging portion 41.

Ribbon 421 can peg graft with eye-splice 422, and ribbon 421 can be connected with bottle body 11 simultaneously again, consequently, is connected ribbon 421 with bottle body 11 and fixes the back and pass eye-splice 422 and fix ribbon 421 again, makes ribbon 421 and bottle body 11 firm in connection, prevents that bottle body 11 accident from dropping.

As an embodiment of the present invention, a plurality of first insertion holes 4211 are sequentially disposed along the length direction of the ribbon 421, a second insertion hole 4221 and a plug 4222 are disposed in the buckle 422, the ribbon 421 is inserted into the second insertion hole 4221, and the plug 4222 is inserted into the first insertion hole 4211.

The plurality of first insertion holes 4211 are arranged for adjusting the gap between the binding belt 421 and the hanging part 41 so as to meet the requirements of bottle bodies 11 with different sizes; specifically, one end of the ribbon 421 is connected to the hanging portion 41, and the other end of the ribbon passes through the second insertion hole 4221 after going around the bottle body 11, so as to adjust the tightness between the ribbon 421 and the bottle body 11, so that the ribbon 421 is tightly wound on the bottle body 11, and then is inserted into the first insertion hole 4211 through the bolt 4222, thereby realizing the reliable connection between the ribbon 421 and the bottle body 11; preferably, a corresponding limiting part is also arranged on the bottle body 11, so that the limiting part can be inserted into other first insertion holes 4211 around the bottle body 11, and the connection reliability can be further improved while the bottle body 11 is limited. When the bottle body 11 needs to be detached from the tie 421, the tie 421 is reversely operated to release the connection with the bottle body 11.

In one embodiment of the present invention, the depth of insertion of the first medical infusion tube 31 and the second medical infusion tube 32 into the bottle body 11 can be adjusted.

According to the needs of the experiment, the depth of the first medical infusion tube 31 and the second medical infusion tube 32 inserted into the bottle body 11 can be adjusted to meet the requirements, for example, when the experiment that the collection density is greater than that of air gas is carried out or the experiment that gas needs to react with liquid completely is carried out, the air inlet tube needs to be inserted into the liquid, the air outlet tube is arranged above the liquid and is not inserted into the liquid, namely, the first medical infusion tube 31 is inserted into the liquid in a longer depth, and the second medical infusion tube 32 is inserted into the liquid in a shorter depth; for another example, when the medical infusion bottle is used as a suck-back-proof safety bottle, two medical infusion tubes with short inlet and short outlet are required to be inserted into the bottle shorter; when the collection density is smaller than the air, the air inlet pipe is short and the air outlet pipe is long, and the insertion lengths of the first medical infusion tube 31 and the second medical infusion tube 32 in the bottle body 11 can be correspondingly adjusted according to different requirements.

In one embodiment of the present invention, sharp insertion portions are provided at both the end of the first medical infusion tube 31 and the end of the second medical infusion tube 32.

The sharp insertion part can facilitate the insertion of the first medical infusion tube 31 and the second medical infusion tube 32 with the bottle body 11.

Example 2

Fig. 5 shows a second embodiment of a green micro chemical experimental apparatus, which is similar to embodiment 1, and the present embodiment is different in that the apparatus further includes a medical sterile three-way cock 5, the medical sterile three-way cock 5 includes a first port 51, a second port 52, and a third port 53, the first port 51 is communicated with the first medical infusion tube 31, the second port 52 is communicated with the second medical infusion tube 32, and the third port 53 is communicated with the reaction bottle 1.

The medical sterile three-way cock 5 is also very convenient to take materials, has the price of 3.68 yuan/piece, not only has three different interfaces, but also has the valve control function, and can utilize the control of the medical sterile three-way cock 5 according to different experimental needs or in different stages of experiments to communicate between different interfaces, thereby realizing different purposes.

In the experiment for producing hydrogen, the first reaction flask 21 was used as a hydrogen generating apparatus, and 0.5g of zinc flakes and 1mL of diluted H were charged into the first reaction flask 21₂SO₄。

And (3) experimental operation:

1. assembling the instrument, checking the air tightness, and filling corresponding medicines.

2. The first connector 51 and the third connector 53 of the medical sterile three-way cock 5 of the first reaction bottle 21 are connected, and 1mL of diluted H is injected into the first connector 51 by a syringe₂SO₄Sulfuric acid, rapidly rotates the medical sterile three-way cock 5 to the second port 52 to be communicated with the third port 53, and closes the first port 51.

3. The hydrogen gas is collected in a small test tube at the second port 52 and purified.

4. And (5) after the experiment is finished, washing and finishing the instrument, and finishing the experiment.

Example 3

Fig. 6 shows a third embodiment of the green micro chemical experiment apparatus of the present invention, which is similar to embodiment 1, except that the reaction flask 1 includes a first reaction flask 21 and a second reaction flask 22, the first reaction flask 21 is communicated with a third port 53, and the second medical infusion tube 32 is further communicated with the second reaction flask 22.

The micro experimental device in the prior art is difficult to meet the requirements of preparing chlorine, sulfur dioxide and other polluting gases in middle school class; and the utility model discloses can avoid causing the pollution well, accord with "green chemistry" theory. In conducting the carbon dioxide test experiment, the first reaction flask 21 can be used as a carbon dioxide generating device, and 0.5g of calcium carbonate and 1mL of diluted HCl are filled into the first reaction flask 21; the second reactor flask 22 was used as a CO2 quality check device, and 2mL of clarified lime water was charged into the second reactor flask 22.

And (3) experimental operation:

2. The first connector 51 and the third connector 53 of the medical sterile three-way cock 5 of the first reaction bottle 21 are connected, 1mL of diluted HCl is injected into the first connector 51 by a syringe, the medical sterile three-way cock is rapidly rotated to connect the second connector 52 and the third connector 53, and the first connector 51 is closed.

3. The clear solution in the second reaction flask 22 was observed to become turbid.

4. And after the experiment is finished, washing and finishing the instrument, and finishing the experiment.

Example 4

Fig. 7 shows a fourth embodiment of the green micro chemical experiment apparatus of the present invention, which is similar to embodiment 3, and the difference is that the apparatus further comprises a third reaction bottle 23 and a third medical infusion tube 33, the third reaction bottle 23 is disposed between the first reaction bottle 21 and the second reaction bottle 22, one end of the first medical infusion tube 31 is communicated with the first interface 51 of the medical sterile three-way cock 5, one end of the second medical infusion tube 32 is communicated with the second interface of the medical sterile three-way cock 5, the other end is communicated with the third reaction bottle 23, the third interface 53 of the medical sterile three-way cock 5 is communicated with the first reaction bottle 21, one end of the third medical infusion tube 33 is communicated with the third reaction bottle 23, and the other end is communicated with the second reaction bottle 22.

In the experiment of the conversion of sulfur-containing substances with different valence states, the first reaction flask 21 was used as a SO2 generator, and 0.5g of Na was charged into the first reaction flask 21₂SO₃Powder and 1mL concentrated H₂SO₄(ii) a The third reaction bottle 23 is used as a sulfur dioxide reducibility testing device, and the third reaction bottle 23 is filled with acidic KMnO₄A solution; the second reaction flask 22 is used as a tail gas absorption device, and NaOH solution is filled into the second reaction flask 22 to absorb the excessive chlorine gas. The first reaction flask 21, the third reaction flask 23 and the second reaction flask 22 are arranged in sequence and are communicated with each other in sequence. Harmful gas in the experiment can be absorbed and prevented in timeOnly cause the pollution in revealing to the air, also embodied here the utility model discloses a green theory.

The experimental procedure was as follows:

2. The medical sterile three-way cock 5 of the first reaction flask 21 is connected to the first port 51 and the third port 53, and 1mL of concentrated H is injected into the first port 51 by a syringe₂SO₄Sulfuric acid, rapidly rotates the medical sterile three-way cock 5 to the second port 53 to be communicated with the third port 53, and closes the first port 51.

3. The purple solution in the third reaction flask 23 is observed to fade in about half a minute, which proves that the sulfur dioxide has reducibility.

4. After the experiment is finished, the first interface 51, the second interface 52 and the third interface 53 of the medical sterile three-way cock 5 are communicated, air is injected from the first interface 51 by using an injector, and SO in the whole device is converted into SO₂And (5) exhausting the tail gas, absorbing the tail gas by using NaOH solution, and finishing the experiment.

Example 5

Fig. 8 shows a fifth embodiment of a green micro chemical experimental apparatus, which is similar to embodiment 4, except that it further comprises a fourth reaction flask 24 and a fourth medical infusion tube 34, wherein the first reaction flask 21, the third reaction flask 23, the fourth reaction flask 24 and the second reaction flask 22 are sequentially arranged; one end of a first medical infusion tube 31 is communicated with a first interface 51 of a medical sterile three-way cock 5, one end of a second medical infusion tube 32 is communicated with a second section interface of the medical sterile three-way cock 5, the other end of the second medical infusion tube is communicated with a third reaction bottle 23, a third interface 53 of the medical sterile three-way cock 5 is communicated with a first reaction bottle 21, one end of a fourth medical infusion tube 34 is communicated with the third reaction bottle 23, and the other end of the fourth medical infusion tube is communicated with a second reaction bottle 22.

In the experiment of the conversion of chlorine-containing substances with different valence states: using the first reaction flask 21 as a chlorine gas generator, 0.5g of KMnO was charged into the first reaction flask 21₄Powder and 1mL concentrated HCl; the third reaction flask 23 is used as a chlorine water bleaching property testing device, and a fuchsin solution is filled into the third reaction flask 23; a fourth reaction bottle24 is used for preparing a device for preparing '84' disinfectant (NaClO solution), a small amount of NaOH solution is filled into a fourth reaction bottle 24, a second reaction bottle 22 is used for removing tail gas, and the NaOH solution is filled into the second reaction bottle 22 to absorb redundant chlorine; the first reaction flask 21, the third reaction flask 23, the fourth reaction flask 24 and the second reaction flask 22 are arranged in sequence and are communicated in sequence.

The experimental procedure was as follows:

2. The medical sterile three-way cock 5 of the first reaction flask 21 is connected to the first port 51 and the second port 52, 1mL of concentrated HCl is injected from the first medical infusion tube 31 by a syringe, and the medical sterile three-way cock 5 is rapidly rotated to connect the second port 52 to the third port 53.

3. The bleaching performance of the chlorine water can be proved by observing the fading of the pinkish red solution in the third reaction bottle 23 in about 1 min. At this time, the NaClO solution is formed in the fourth reaction flask 24, and the content is measured by an available chlorine content measuring test paper.

4. After the experiment is finished, the first connector 51, the second connector 52 and the third connector 53 of the medical sterile three-way cock 5 are all communicated, air is injected from the first connector 51 by an injector, chlorine in the whole device is exhausted, tail gas is absorbed by NaOH solution, and the experiment is finished.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a green miniature chemical experiment device, its characterized in that includes at least one reaction flask (1), first medical transfer line (31), second medical transfer line (32), first medical transfer line (31) with second medical transfer line (32) all with reaction flask (1) grafting back with reaction flask (1) inside intercommunication.

2. A green microchemical experimental apparatus as defined in claim 1, wherein the reaction flask (1) comprises a flask body (11) for containing a liquid and a stopper (12), the stopper (12) being detachably connected to the flask body (11); the first medical infusion tube (31) and the second medical infusion tube (32) are both inserted into the plug (12).

3. The green micro chemical experiment device according to claim 2, further comprising a fixing device (4) for hanging and fixing the reaction flask (1), wherein the fixing device (4) is detachably connected with the reaction flask (1).

4. A green microchemical experimental apparatus as claimed in claim 3, wherein the fixing device (4) comprises a hanging portion (41) and a fixing portion (42) which are connected with each other, and the fixing portion (42) is detachably connected with the bottle body (11).

5. The green micro chemical experiment device of claim 4, wherein a magnetic element or a magic tape or a hook is provided on the hanging part (41).

6. The green micro chemical experiment device of claim 4, wherein the fixing portion (42) comprises a movably inserted ribbon (421) and a buckle (422), one end of the ribbon (421) is connected with one end of the hanging portion (41), and the other end is a free end; the insert buckle (422) is connected with the other end of the hanging part (41).

7. The green micro chemical experiment device, as set forth in claim 6, wherein a plurality of first insertion holes (4211) are sequentially arranged along the length direction of the ribbon (421), a second insertion hole (4221) and a plug pin (4222) are arranged in the insert buckle (422), the ribbon (421) is inserted into the second insertion hole (4221), and the plug pin (4222) is inserted into the first insertion hole (4211).

8. A green microchemical experimental device according to any of claims 1 to 7, further comprising a medical sterile three-way cock (5), wherein said medical sterile three-way cock (5) comprises a first port (51), a second port (52) and a third port (53), said first port (51) is communicated with said first medical infusion tube (31), said second port (52) is communicated with said second medical infusion tube (32), and said third port (53) is communicated with said reaction flask (1).

9. The green microchemical experimental device of claim 8, wherein the reaction flask (1) comprises a first reaction flask (21) and a second reaction flask (22), the first reaction flask (21) is communicated with the third port (53), and the second medical infusion tube (32) is also communicated with the second reaction flask (22).

10. The green micro chemical experiment device according to claim 9, further comprising at least one third reaction bottle (23) and a third medical infusion tube (33), wherein the third reaction bottle (23) is disposed between the first reaction bottle (21) and the second reaction bottle (22), one end of the second medical infusion tube (32) is communicated with the second port (52), the other end of the second medical infusion tube is communicated with the third reaction bottle (23), one end of the third medical infusion tube (33) is communicated with the third reaction bottle (23), and the other end of the third medical infusion tube is communicated with the second reaction bottle (22).