Reagent mixing device for chemical experiment

Abstract

The utility model relates to the technical field of chemical experiments, in particular to a reagent mixing device for chemical experiments. The device comprises a base and a mixing tank, the mixing tank is assembled at the top of the base, a stirring and mixing mechanism is assembled in the mixing tank, a rotary mixing mechanism is assembled between the base and the mixing tank, and the stirring and mixing mechanism comprises a first motor, a transmission shaft, a mixing and stirring knife, a connecting rod and a cleaning scraper; through the structural design of the stirring and mixing mechanism, the device rotates by starting a first motor, so that a chemical reagent can be stirred and mixed by a mixing and stirring knife, and the inner wall of a mixing tank can be cleaned by a cleaning scraper after mixing is finished; by means of the structural design of the rotary mixing mechanism, stirring and mixing in the mixing tank can be achieved by starting a second motor, meanwhile, rotary mixing between the base and the mixing tank is achieved, and by means of double mixing, the experiment preparation time can be effectively shortened, and the experiment efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical experiment technical field especially, a reagent mixing device for chemical experiment. BACKGROUND

[0002] In the field of chemical experiments, reagent mixing is one of the core operation links. The traditional reagent mixing method mainly relies on manual operation. However, this method has obvious defects in the face of the needs of modern chemical experiments. On the one hand, manual mixing is difficult to accurately control the degree and uniformity of mixing. In many frontier chemical research experiments, small mixing differences can lead to completely different product properties. On the other hand, many chemical reagents are corrosive, toxic or volatile. When operating manually, the experimenters inevitably come into close contact with these dangerous reagents, and over a long period of time, the occupational health risk is extremely high, and they may suffer damage to the respiratory tract, skin, etc. At the same time, with the development of chemical experiments towards high-throughput and large-scale, the low efficiency of traditional manual mixing has become a key factor restricting the improvement of experimental efficiency. Whether it is batch experimental testing in scientific research institutions or small-scale and pilot-scale links in the early stages of research and production in chemical enterprises, there is an urgent need for a device that can quickly, efficiently and stably mix reagents.

[0003] Patent CN215233519U discloses a mixing device for detecting chemical reagents, comprising a mixing tank, characterized in that: the upper end of the mixing tank is provided with a rotating mechanism, the lower end outer surface of the rotating mechanism is fixedly connected with a stirring mechanism, and the stirring mechanism is located in the interior of the mixing tank. The utility model discloses a mixing device for detecting chemical reagents, which can close the mixing tank through the rotating mechanism, drive the stirring mechanism to work, and make the whole rotating mechanism and the mixing tank movably connected through the setting of the limiting ring, so as to facilitate the operation of people. The mixing device for detecting chemical reagents is convenient to operate, and the lengths of the short mixing glass rod and the long mixing glass rod in the stirring mechanism are different, so that the chemical reagents in the mixing tank can be mixed more uniformly and quickly.

[0004] When using the above technology, it is found that the existing technology has the following technical problems: the existing mixing device for detecting chemical reagents cannot accurately control the degree and uniformity of mixing, which may lead to incomplete chemical reaction, and in chemical research experiments, small mixing differences may lead to great differences in product performance. Moreover, the existing mixing device for detecting chemical reagents is not convenient to clean the mixing tank, which may also affect the accuracy of chemical experiments if not cleaned thoroughly, so there is room for improvement. Therefore, we design a reagent mixing device for chemical experiments to provide another technical solution to the above technical problems. UTILITY MODEL CONTENT

[0005] Therefore, it is necessary to provide a reagent mixing device for chemical experiments to solve the technical problem of stirring and mixing chemical reagents.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0007] A reagent mixing device for chemical experiments, which comprises a base and a mixing tank, the top of the base is equipped with the mixing tank, the inside of the mixing tank is equipped with a stirring and mixing mechanism, and the base and the mixing tank are equipped with a rotating mixing mechanism.

[0008] The stirring and mixing mechanism comprises a first motor, a transmission shaft, a mixing stirring knife, a connecting rod and a cleaning scraper, the bottom of the mixing tank is fixed with the first motor, the power output end of the first motor is fixed with the transmission shaft, the outside of the transmission shaft is fixed with the mixing stirring knife, the middle of the transmission shaft is fixed with the connecting rod, both ends of the connecting rod are fixed with the cleaning scraper, and both of the cleaning scrapers are slidably connected with the mixing tank.

[0009] Preferably, the rotating mixing mechanism comprises a supporting block, a second motor, a driving bevel gear, a driven bevel gear and a rotating shaft, both ends of the top of the base are fixed with the supporting block, one side of one of the supporting blocks is fixed with the second motor, the power output of the second motor is fixed with the driving bevel gear, the outside of the driving bevel gear is meshedly connected with the driven bevel gear, the middle of both ends of the mixing tank is fixed with the rotating shaft, and the rotating shaft is rotatably connected with the supporting block.

[0010] Preferably, the top of the mixing tank is equipped with a sealing mechanism, the sealing mechanism comprises a hinge, a tank cover, a first U-shaped frame, a cylindrical rod, a rotating block, a threaded screw rod, a second U-shaped frame and a rotating compression disc, two hinges are fixed on the top of one side of the mixing tank, one tank cover is fixed at one end of the two hinges, a first U-shaped frame is fixed on the top of the other side of the mixing tank, the inside of the first U-shaped frame is fixed with a cylindrical rod, the outside of the cylindrical rod is rotatably connected with a rotating block, the top of the rotating block is fixed with a threaded screw rod, one side of the tank cover is fixed with a second U-shaped frame, the outside of the threaded screw rod is threadedly connected with a rotating compression disc, and the second U-shaped frame and the rotating compression disc are in contact.

[0011] Preferably, the top of the tank cover is fixed with a reagent adding port on both sides, and the outside of the reagent adding port is threadedly connected with a sealing cover.

[0012] Preferably, the outside of the first motor and the second motor is fixed with a protective cover.

[0013] Preferably, one end of one side of the base is fixed with a control panel, and the first motor, the second motor and the control panel are electrically connected.

[0014] Preferably, the bottom of the base is fixed with a support foot pad at four corners.

[0015] It can be undoubtedly seen that the above technical solutions of the application can certainly solve the technical problems to be solved by the application.

[0016] Meanwhile, the above technical solutions have at least the following beneficial effects:

[0017] 1. The device can realize stirring and mixing of the chemical reagent by the first motor, and the inner wall of the mixing tank can be cleaned by the cleaning scraper after mixing.

[0018] 2. The device can realize stirring and mixing of the chemical reagent by the second motor, and the base and the mixing tank can be rotated and mixed.

[0019] 3. The device can realize sealing of the mixing tank and the tank cover by the second U-shaped frame and the rotating pressing disc, and can effectively avoid leakage of the chemical reagent during rotation. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a schematic diagram of the overall structure of the application;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the mixing tank of the application;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the support block of the application;

[0024] Figure 4 It is a schematic diagram of the connection structure of the mixing tank, the hinge and the tank cover of the application;

[0025] Figure 5 It is a schematic diagram of the connection structure of the first U-shaped frame and the second U-shaped frame of the application;

[0026] Figure 6 It is the connection structure schematic view of base, mixing jar, protective cover, control panel and support foot pad of the utility model;

[0027] Figure 7 It is the connection structure schematic view of mixing jar and jar cover of the utility model.

[0028] In the figure: 1, base; 2, mixing jar; 3, first motor; 4, transmission shaft; 5, mixing stirring knife; 6, connecting rod; 7, cleaning scraper; 8, support block; 9, second motor; 10, driving bevel gear; 11, driven bevel gear; 12, rotating shaft; 13, hinge; 14, jar cover; 15, first U-shaped frame; 16, cylindrical rod; 17, rotating block; 18, threaded screw rod; 19, second U-shaped frame; 20, rotating compression disc; 21, reagent adding port; 22, sealing cover; 23, protective cover; 24, control panel; 25, support foot pad. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0030] In order to make the person in the art better understand the utility model scheme, the following will be combined with the drawings, and the technical scheme in the embodiment of the utility model is described clearly and completely.

[0031] It should be noted that, in the case of no conflict, the examples in the utility model and the features and technical schemes in the examples can be combined with each other.

[0032] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0033] Example one

[0034] Referring to Figure 1 - Figure 7 A reagent mixing device for chemical experiments, comprising a base 1 and a mixing jar 2, the top of the base 1 is equipped with the mixing jar 2, the inside of the mixing jar 2 is equipped with a stirring mixing mechanism, and a rotating mixing mechanism is equipped between the base 1 and the mixing jar 2;

[0035] The stirring mechanism comprises a first motor 3, a transmission shaft 4, a mixing stirring blade 5, a connecting rod 6 and a cleaning scraper 7, the bottom of the mixing tank 2 is fixed with the first motor 3, the power output end of the first motor 3 is fixed with the transmission shaft 4, the outer portion of the transmission shaft 4 is fixed with the mixing stirring blade 5, the middle portion of the transmission shaft 4 is fixed with the connecting rod 6, the two ends of the connecting rod 6 are both fixed with the cleaning scraper 7, and the two cleaning scrapers 7 are both in sliding connection with the mixing tank 2; firstly, the sealing cover 22 can be rotated to open the sealing cover 22 and the reagent adding port 21, the chemical experiment reagent is poured into the mixing tank 2, and then the sealing cover 22 is rotated again to realize sealing; when the chemical experiment reagent in the mixing tank 2 needs to be stirred and mixed, the first motor 3 is started, the power output end of the first motor 3 drives the transmission shaft 4 to rotate, the transmission shaft 4 drives the mixing stirring blade 5 to rotate, and the special shape design of the mixing stirring blade 5 makes the stirring and mixing effect better; when the stirring and mixing is finished, the chemical experiment reagent in the mixing tank 2 is poured out, at this time, the inner wall of the mixing tank 2 needs to be cleaned, similarly, the first motor 3 is started to rotate, the power output end of the first motor 3 drives the connecting rod 6 to rotate, and the connecting rod 6 drives the cleaning scrapers 7 at the two ends to slide in the mixing tank 2, so that the inner wall of the mixing tank 2 can be cleaned, the inner wall of the mixing tank 2 is cleaned conveniently and quickly, and the accuracy of the chemical experiment can be ensured through the cleaning of the inner wall of the mixing tank 2; it should be noted that the rotation of the connecting rod 6 and the cleaning scraper 7 also plays a role in stirring and mixing during the stirring and mixing process, so that the stirring and mixing effect is better;

[0036] The top of the tank cover 14 is fixed with the reagent adding port 21 on both sides, and the outer portion of the reagent adding port 21 is threadedly connected with the sealing cover 22; through the arrangement of the reagent adding port 21 and the sealing cover 22, the chemical experiment reagent can be added without opening the tank cover 14, so that the chemical experiment reagent is added conveniently and flexibly, and the practicability is better;

[0037] The outer portions of the first motor 3 and the second motor 9 are both fixed with the protective cover 23; through the arrangement of the protective cover 23, the motors can be protected from the interference and damage of the external environment, and stable operation of the motors can be ensured. Meanwhile, the protective cover 23 can also prevent personnel from contacting the moving parts of the motors, so that safety accidents can be avoided.

[0038] One end of the base 1 is fixed with the control panel 24, and the first motor 3, the second motor 9 and the control panel 24 are electrically connected; through the arrangement of the control panel 24, the first motor 3 and the second motor 9 can be effectively controlled, so that the operator can stir and mix according to the needs or use the stirring and mixing and the rotary mixing at the same time, and the mixing efficiency is improved;

[0039] The bottom four corners of the base 1 are fixed with support foot pads 25; through the setting of the support foot pads 25, it can be ensured that the reagent mixing device for chemical experiments can work stably under the condition of being placed, prevent the reagent mixing device for chemical experiments from tilting or sliding, and improve the operation safety and work efficiency;

[0040] Example two

[0041] Refer to Figure 4 A reagent mixing device for chemical experiments, the rotating mixing mechanism comprises a support block 8, a second motor 9, a driving bevel gear 10, a driven bevel gear 11 and a rotating shaft 12, the top of the base 1 is fixed with the support block 8 at both ends, one side of one of the support blocks 8 is fixed with the second motor 9, the power output of the second motor 9 is fixed with the driving bevel gear 10, the outer part of the driving bevel gear 10 is meshed with the driven bevel gear 11, the middle part of both ends of the mixing tank 2 is fixed with the rotating shaft 12, the rotating shaft 12 and the support block 8 are rotationally connected, and one of the rotating shafts 12 and the driven bevel gear 11 are fixed; when it is necessary to reduce the experiment preparation time and improve the experiment efficiency, the reagent stirring and mixing for chemical experiments can be carried out at the same time, the second motor 9 is started, the power output end of the second motor 9 drives the driving bevel gear 10 to rotate, the driving bevel gear 10 drives the driven bevel gear 11 to rotate, the driven bevel gear 11 drives one of the rotating shafts 12 to rotate, the rotating shaft 12 drives the mixing tank 2 to rotate, the mixing tank 2 drives the other rotating shaft 12 to rotate inside the support block 8, and the rotating mixing of the mixing tank 2 can be realized, through double mixing, the experiment preparation time can be effectively reduced, and the experiment efficiency can be improved;

[0042] The top of the mixing tank 2 is equipped with a sealing mechanism, which comprises a hinge 13, a tank cover 14, a first U-shaped frame 15, a cylindrical rod 16, a rotating block 17, a threaded screw rod 18, a second U-shaped frame 19, and a rotating compression disc 20. Two hinges 13 are fixed to the top of one side of the mixing tank 2. One tank cover 14 is fixed to one end of the two hinges 13. A first U-shaped frame 15 is fixed to the top of the other side of the mixing tank 2. A cylindrical rod 16 is fixed inside the first U-shaped frame 15. A rotating block 17 is rotatably connected to the outside of the cylindrical rod 16. A threaded screw rod 18 is fixed to the top of the rotating block 17. A second U-shaped frame 19 is fixed to one side of the tank cover 14. A rotating compression disc 20 is threadedly connected to the outside of the threaded screw rod 18. The second U-shaped frame 19 and the rotating compression disc 20 are in close contact. When the reagent for chemical experiments needs to be rotated and mixed, the mixing tank 2 and the tank cover 14 need to be sealed to avoid leakage during rotation and mixing. The rotating block 17 and the threaded screw rod 18 are pushed to rotate around the cylindrical rod 16 inside the first U-shaped frame 15. The rotating compression disc 20 is rotated, so that the bottom of the rotating compression disc 20 and the top of the second U-shaped frame 19 are in close contact. Through the threaded cooperation of the threaded screw rod 18 and the rotating compression disc 20, the bottom of the rotating compression disc 20 and the top of the second U-shaped frame 19 are tightly attached to achieve the sealing of the mixing tank 2 and the tank cover 14. This can effectively prevent the leakage of the reagent for chemical experiments during rotation and mixing, and is safe and reliable to use, improving the safety of the reagent for chemical experiments during mixing.

[0043] The part which contacts with the chemical is made of titanium and titanium alloy material, which has many advantages. Firstly, from the physical property, the density of titanium and titanium alloy is small, which means that the whole weight is light after assembling the stirring device and installing on the mixing device, and the good dynamic balance state can be maintained easily during operation. The maintenance of the dynamic balance is very important for the operation stability of the mixing device, which can reduce unnecessary vibration and power loss, and ensure that the stirring process can be carried out flexibly and efficiently. At the same time, titanium and titanium alloy have high strength, which can cope with the complex stress situation in the stirring process, such as the impact force generated by the collision between materials, the shear force generated by the rotation of the stirring paddle, etc., which will not easily cause the stirring device to deform, break and other problems, and thus ensures the long-term stable and reliable operation of the mixing device. Secondly, in terms of corrosion resistance, titanium and titanium alloy are excellent. When in the medium environment of oxidizing acid, chloride solution or seawater, a dense oxide film will be generated on the surface of titanium alloy, which can prevent the erosion of external chemical substances to the internal metal matrix, thereby giving the material good corrosion resistance. More importantly, when dealing with strong oxidizing acids such as perchloric acid and nitric acid, the corrosion resistance of titanium and titanium alloy is more prominent, which can maintain the stability of its structure and performance in such highly corrosive chemical environment, which makes the mixing device can adapt to more process containing high corrosive chemical reagent, and lays a solid foundation for its wide application in different chemical production fields.

[0044] The use process of the reagent mixing device for chemical experiments is as follows:

[0045] Firstly, the sealing cover 22 and the reagent adding port 21 can be opened by rotating the sealing cover 22, the chemical reagent is poured into the mixing tank 2, and then the sealing cover 22 is rotated again to realize sealing. When the chemical reagent in the mixing tank 2 is stirred and mixed, the first motor 3 is fixed at the bottom of the mixing tank 2, the power output end of the first motor 3 is fixed with a transmission shaft 4, the outer portion of the transmission shaft 4 is fixed with a mixing stirrer 5, the middle portion of the transmission shaft 4 is fixed with a connecting rod 6, both ends of the connecting rod 6 are fixed with cleaning scrapers 7, and both cleaning scrapers 7 are in sliding connection with the mixing tank 2. Then, the first motor 3 is started, the power output end of the first motor 3 drives the transmission shaft 4 to rotate, the transmission shaft 4 drives the mixing stirrer 5 to rotate, and the special shape design of the mixing stirrer 5 makes the stirring and mixing effect better. When the stirring and mixing is finished, the chemical reagent in the mixing tank 2 is poured out, at this time, the inner wall of the mixing tank 2 needs to be cleaned. Similarly, the first motor 3 is started to rotate, the power output end of the first motor 3 drives the connecting rod 6 to rotate, and the connecting rod 6 drives the cleaning scrapers 7 at both ends to slide in the mixing tank 2, so that the inner wall of the mixing tank 2 can be cleaned, the inner wall of the mixing tank 2 is cleaned conveniently and quickly, and the accuracy of the chemical experiment can be ensured through the cleaning of the inner wall of the mixing tank 2. It should be noted that the rotation of the connecting rod 6 and the cleaning scraper 7 also plays a role in stirring and mixing during the stirring and mixing process, so that the stirring and mixing effect is better.

[0046] When the experimental preparation time is to be reduced and the experimental efficiency is to be improved, the chemical reagent can be stirred and mixed at the same time. Since the top of the base 1 is fixed with support blocks 8 at both ends, one side of one of the support blocks 8 is fixed with a second motor 9, the power output of the second motor 9 is fixed with a driving bevel gear 10, the outer portion of the driving bevel gear 10 is meshingly connected with a driven bevel gear 11, the middle portions of both ends of the mixing tank 2 are fixed with rotating shafts 12, the rotating shafts 12 are in rotary connection with the support blocks 8, and one of the rotating shafts 12 is fixed with the driven bevel gear 11. Then, the second motor 9 is started, the power output end of the second motor 9 drives the driving bevel gear 10 to rotate, the driving bevel gear 10 drives the driven bevel gear 11 to rotate, the driven bevel gear 11 drives the rotating shaft 12 to rotate, the rotating shaft 12 drives the mixing tank 2 to rotate, and the mixing tank 2 drives the other rotating shaft 12 to rotate in the support block 8, so that the rotating mixing of the mixing tank 2 can be realized. Through double mixing, the experimental preparation time can be effectively reduced and the experimental efficiency can be improved.

[0047] When the reagent for chemical experiment is to be mixed by rotation, the mixing tank 2 and the tank cover 14 need to be sealed to avoid leakage during the rotation mixing. Since two hinges 13 are fixed on the top of one side of the mixing tank 2, one tank cover 14 is fixed on one end of the two hinges 13, a first U-shaped frame 15 is fixed on the top of the other side of the mixing tank 2, a cylindrical rod 16 is fixed in the first U-shaped frame 15, a rotating block 17 is rotatably connected to the outside of the cylindrical rod 16, a threaded screw rod 18 is fixed on the top of the rotating block 17, a second U-shaped frame 19 is fixed on one side of the tank cover 14, a rotating compression disc 20 is threadedly connected to the outside of the threaded screw rod 18, and the second U-shaped frame 19 and the rotating compression disc 20 are in abutting contact. Then the rotating block 17 and the threaded screw rod 18 are pushed to rotate around the cylindrical rod 16 in the first U-shaped frame 15, the rotating compression disc 20 is rotated, the bottom of the rotating compression disc 20 and the top of the second U-shaped frame 19 are in abutting contact, the bottom of the rotating compression disc 20 and the top of the second U-shaped frame 19 are tightly abutted through the threaded cooperation of the threaded screw rod 18 and the rotating compression disc 20, the mixing tank 2 and the tank cover 14 are sealed, and the leakage of the reagent for chemical experiment during the rotation mixing can be effectively avoided, so that the safety during use is safe and reliable, and the safety during the mixing of the reagent for chemical experiment is improved.

[0048] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. A reagent mixing apparatus for chemical experiments, characterized in that, It includes base (1) and mixing tank (2), the top of base (1) is equipped with mixing tank (2), the inside of mixing tank (2) is equipped with stirring mixing mechanism, and the between base (1) and mixing tank (2) is equipped with rotating mixing mechanism; The stirring mixing mechanism includes first motor (3), transmission shaft (4), mixing stirring knife (5), connecting rod (6) and cleaning scraper (7), the bottom of mixing tank (2) is fixed with first motor (3), the power output end of first motor (3) is fixed with transmission shaft (4), the outside of transmission shaft (4) is fixed with mixing stirring knife (5), the middle of transmission shaft (4) is fixed with connecting rod (6), both ends of connecting rod (6) are fixed with cleaning scraper (7), and both cleaning scrapers (7) are slidably connected with mixing tank (2).

2. The reagent mixing device for chemical experiments according to claim 1, characterized in that, The rotating mixing mechanism includes support block (8), second motor (9), driving bevel gear (10), driven bevel gear (11) and rotating shaft (12), both ends of the top of base (1) are fixed with support block (8), one side of one support block (8) is fixed with second motor (9), the power output of second motor (9) is fixed with driving bevel gear (10), the outside of driving bevel gear (10) is meshedly connected with driven bevel gear (11), and the middle of both ends of mixing tank (2) is fixed with rotating shaft (12), the rotating shaft (12) is rotatably connected with support block (8), and one rotating shaft (12) is fixed with driven bevel gear (11).

3. The reagent mixing device for chemical experiments according to claim 1, characterized in that, The top of mixing tank (2) is equipped with sealing mechanism, the sealing mechanism includes hinge (13), tank cover (14), first U-shaped frame (15), cylindrical rod (16), rotating block (17), threaded screw rod (18), second U-shaped frame (19) and rotating compression disc (20), one side of the top of mixing tank (2) is fixed with two hinges (13), one end of two hinges (13) is fixed with one tank cover (14), the top of the other side of mixing tank (2) is fixed with first U-shaped frame (15), the inside of first U-shaped frame (15) is fixed with cylindrical rod (16), the outside of cylindrical rod (16) is rotatably connected with rotating block (17), the top of rotating block (17) is fixed with threaded screw rod (18), one side of tank cover (14) is fixed with second U-shaped frame (19), the outside of threaded screw rod (18) is threadedly connected with rotating compression disc (20), and second U-shaped frame (19) and rotating compression disc (20) are in contact.

4. The reagent mixing device for chemical experiments according to claim 3, characterized in that, The top of tank cover (14) is fixed with reagent adding port (21) on both sides, and the outside of reagent adding port (21) is threadedly connected with sealing cover (22).

5. The reagent mixing device for chemical experiments according to claim 2, wherein The outside of first motor (3) and second motor (9) is fixed with protective cover (23).

6. The reagent mixing device for chemical experiments according to claim 1, characterized in that, One end of one side of base (1) is fixed with control panel (24), and first motor (3), second motor (9) and control panel (24) are electrically connected.

7. The reagent mixing device for chemical experiments according to claim 1, characterized in that, The bottom four corners of the base (1) are fixed with support foot pads (25).

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