Closed integrated storage structure and working method thereof

Abstract

The invention provides a closed integrated storage structure and a working method thereof, and relates to the technical field of storage bottles, the storage structure comprises a liquid storage cavity, a quantitative cavity and a liquid transfer device; the liquid storage cavities are used for storing liquid respectively; the liquid transfer device is arranged between the liquid storage cavity and the quantitative cavity and is used for transferring liquid in the liquid storage cavity into the quantitative cavity; a slope structure is arranged in the lower part of the quantitative cavity and is used for measuring liquid medicine and removing the liquid medicine out. The structure is divided into the quantitative cavity and the liquid storage cavity, so that the storage function and the measuring function are integrated, and the experiment operation is simple and convenient; meanwhile, a switchable shell and a detachable inner container are additionally arranged for the liquid storage cavity part, so that storage and transfer of various reagents are realized; in the quantitative cavity part, the solid bottom part is designed into a slope structure, so that the reagent is convenient to take and use, and the measuring and taking accuracy is improved; the middle liquid transfer device uses a yo-yo rotating shaft structure for reference, and smooth rotation of a shell is achieved through a rolling shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of storage bottles, and in particular to a closed integrated storage structure and a working method thereof. Background Art

[0002] In chemical experiments, accurate storage and precise measurement of reagents are the key to obtaining repeatable and reliable results. Storage and measurement involve the storage, weighing and preparation of reagents. Traditionally, these operations are performed manually by experimenters, which are subject to the risk of human error and can easily affect the accuracy and repeatability of the experiment. In order to solve these problems, researchers have carried out a lot of work to promote the development of storage and measurement technology in chemical experimental instruments.

[0003] At present, the relatively mature technologies in the field of storage and measurement of chemical instruments include automated storage and measurement systems, high-precision balances and measuring cylinders. The emergence of automated storage and measurement systems has greatly improved the efficiency and accuracy of experiments. These systems use advanced control technology and precise metering equipment to automatically store and remove reagents, and perform precise metering and proportioning. However, they face problems such as high costs, complex technologies, and the need for regular maintenance and care, which severely restricts their popularity. The research on high-precision balances and measuring cylinders is committed to improving the accuracy of weighing and measuring cylinder capacity to meet the needs of experiments, but the problems it faces, such as limited measurement range, complex operation, and high sensitivity, also make it unable to meet daily application scenarios.

[0004] Therefore, it is particularly important to develop low-cost, environmentally friendly, easy-to-operate instruments that can integrate storage and measurement. Summary of the invention

[0005] According to the above technical problems that the current automated storage and measuring systems are expensive and technically complex and cannot meet the requirements of daily applications, a closed integrated storage structure and a working method thereof are provided. The present invention mainly divides the internal space of the medicine bottle into a quantitative cavity and a liquid storage cavity, the quantitative cavity measures the required liquid medicine, the liquid storage cavity stores the liquid medicine, and a control valve is arranged between the two cavities, thereby realizing the storage of multiple liquid medicines, the combination of quantitative and reaction functions, and more accurate measurement and storage of liquid medicines under the condition of greatly reducing pollution.

[0006] The technical means adopted by the present invention are as follows:

[0007] A closed integrated storage structure, comprising a liquid storage chamber, a quantitative chamber and a liquid transfer device;

[0008] The liquid storage cavity is an inner and outer double-layer structure, the outer layer is set as an open-close structure, and the inner layer is provided with a plurality of replaceable inner tanks for storing liquids respectively;

[0009] The liquid transfer device is arranged between the liquid storage cavity and the quantitative cavity. The liquid transfer device has a rotating shaft structure inside and a rotating structure outside, and is used to transfer the liquid in the liquid storage cavity to the quantitative cavity.

[0010] A slope structure is arranged inside the lower part of the quantitative cavity for measuring and removing the liquid medicine.

[0011] Further, the liquid transfer device comprises a rotatable shell, a central rotating shaft is arranged at the center of the rotatable shell, and a plurality of rotating rollers are arranged in the gap between the rotatable shell and the central rotating shaft, so that the rotatable shell can rotate along the rotating rollers;

[0012] The lower end of the central rotating shaft passes through the rotatable shell and is firmly connected to the fixed connecting shell above the quantitative cavity through four evenly arranged connecting support columns. A hollow structure is set between the fixed connecting shell and the central rotating shaft, and the fixed connecting shell is connected to the quantitative cavity.

[0013] Furthermore, a ventilation pipe and a liquid channel are respectively provided on the rotatable shell, and the ventilation pipe and the liquid channel penetrate the rotatable shell and communicate with the hollow structure; a liquid flow switch is inserted on the rotatable shell, and one end of the liquid flow switch penetrates the ventilation pipe and the liquid channel.

[0014] Furthermore, the lower ends of several of the inner liner are respectively connected to the perforated connecting plates, the lower end supports of the inner liner are inserted into the grooves of the perforated connecting plates to fix the inner liner, the perforated connecting plates are provided with ventilation pipe openings and liquid channel openings, and the perforated connecting plates are arranged above the liquid transfer device.

[0015] Furthermore, scale lines are arranged on the outer wall of the inner container, and a bottom switch is arranged at the bottom of the inner container, and a sealing cover is arranged in the slot of the bottom switch.

[0016] Furthermore, the opening and closing structure is an opening and closing structure that can open two doors in the middle, and the movable shells on both sides are arranged on the opening and closing structure through a rotating shaft, and the two movable shells are opened and closed by buckles.

[0017] Furthermore, the outer wall of the quantitative cavity is provided with uniform scales, the outer edge of the slope structure in the quantitative cavity is provided with non-uniform scale lines, and the slope structure is a solid glass structure.

[0018] Furthermore, a liquid taking port is provided on the outer wall of the quantitative cavity at the lowest point of the slope structure, and a liquid taking valve switch is provided on the liquid taking port.

[0019] The present invention also provides a working method of a closed integrated storage structure, comprising:

[0020] Upper liquid storage chamber: open the outer opening and closing structure, put in the replaceable inner liner, put different liquids in each inner liner, and then close the outer opening and closing structure;

[0021] Middle liquid transfer device: when a certain liquid is needed, rotate the liquid flow switch, open the sealing cover under the inner tank, and rotate the perforated connecting plate to connect the liquid transfer device to the corresponding inner tank;

[0022] The quantitative chamber below: When the required volume of a certain liquid flows in, the liquid flow switch is closed, and the liquid also flows out from the liquid intake port at the bottom of the quantitative chamber.

[0023] Further, when a certain volume of liquid is measured, it specifically includes:

[0024] Turn the liquid channel to the bottom of the target liner, rotate the liquid flow switch to connect the liquid channel and the vent pipe with the quantitative chamber, open the sealing cover at the bottom of the liner where the required liquid is located, and the liquid will flow from the liquid storage chamber into the quantitative chamber and will be collected to the liquid extraction valve switch through the italic structure;

[0025] When the liquid in the quantitative chamber is about to reach the scale line corresponding to the required measurement, slowly turn the liquid flow switch to narrow the liquid channel, thereby slowing down the liquid flow rate and finally completing accurate quantitative measurement;

[0026] Open the liquid taking valve switch on the side wall of the quantitative chamber to complete the acquisition of quantitative liquid;

[0027] When the quantitative chamber is used as a simple mixing reaction container for multiple liquids:

[0028] By observing the changes in the scale on the side wall of the inner tank corresponding to the required liquid level, the precise amount of liquid transferred from the storage chamber to the quantitative chamber can be known, and finally different liquids can be mixed and reacted in the quantitative chamber according to the required different proportions.

[0029] Compared with the prior art, the present invention has the following advantages:

[0030] 1. By dividing the structure into two chambers, the quantitative chamber and the liquid storage chamber, the storage and measuring functions are integrated, which simplifies the experimental operation; at the same time, a switchable shell and a detachable inner tank are added to the liquid storage chamber to realize the storage and transfer of various reagents; in the quantitative chamber part, the bottom part of the entity is designed as a slope structure, which facilitates the use of reagents and improves the accuracy of measurement; the middle liquid transfer device draws on the yo-yo shaft structure, and realizes the smooth rotation of the shell through the roller.

[0031] 2. The device will select PEI polyester plastic, organic glass or inorganic glass as the main material, which solves the problem of high cost and reduces pollution to the environment.

[0032] 3. Application and practicality:

[0033] This structure can greatly improve the accuracy of chemical liquid metering, and the operation process is not cumbersome; storing multiple reagents in one cavity is also its characteristic; most importantly, quantification and storage in a closed system can avoid air contact as much as possible, greatly reducing the possibility of contamination and deterioration, and well solving the problem of liquid oxidation and deterioration.

[0034] In addition to its application in the scientific field, it can also be applied in daily life: when a patient strives for precision in taking medicine, this product is a good choice; when a chef who strives for perfection cooks, this product may be able to achieve good control over the amount of seasoning used, greatly reducing the possibility of defects in dishes caused by mistakes. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0036] Figure 1 Schematic diagram of the outer structure of the liquid storage chamber in the present invention.

[0037] Figure 2 It is a front view of the inner liner structure of the liquid storage chamber in the present invention.

[0038] Figure 3 It is a top view of the inner liner structure of the liquid storage chamber in the present invention.

[0039] Figure 4 This is a schematic diagram of the closed state of the switch at the bottom of the inner container in the present invention.

[0040] Figure 5 This is a schematic diagram of the switch at the bottom of the inner container in the present invention being turned on.

[0041] Figure 6 It is a top view of the sealing cover at the bottom of the inner container in the present invention.

[0042] Figure 7 It is a side view of the sealing cover at the bottom of the inner container in the present invention.

[0043] Figure 8 It is a schematic diagram of the quantitative cavity structure in the present invention.

[0044] Fig. 9 It is a schematic diagram of the structure of the liquid transfer device in the present invention.

[0045] Fig.10It is a schematic diagram of the structure of the liquid flow switch in the present invention.

[0046] Fig.11 This is a schematic diagram of the closed state of the liquid flow switch in the present invention.

[0047] Fig.12 This is a schematic diagram of the liquid flow switch in the present invention when it is turned on.

[0048] Fig.13 It is a schematic diagram of the structure of the connecting plate with holes in the present invention.

[0049] Fig.14 It is a schematic diagram of the relative positions of the inner container and the liquid channel during the rotation process of the present invention.

[0050] Fig.15 It is a schematic diagram of the overall structural dispersion in the present invention.

[0051] Fig.16 It is a schematic diagram of the overall structure assembly of the present invention.

[0052] In the figure: 1. liquid storage chamber; 101. opening and closing structure; 1011. movable shell; 1012. rotating shaft; 1013. buckle; 102. liner; 1021. bottom switch; 1022. sealing cover; 2. quantitative chamber; 201. ramp structure; 3. liquid transfer device; 301. rotatable shell; 302. central rotating shaft; 303. rotating roller; 304. ventilation pipe; 305. liquid channel; 306. fixed connecting shell; 307. support column; 4. liquid flow switch; 5. connecting plate with holes. DETAILED DESCRIPTION

[0053] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0054] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0056] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers 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 discussed in subsequent drawings.

[0057] Embodiment 1:

[0058] like Figure 1-16 As shown, the present invention provides a closed integrated storage structure, which divides a narrow-mouthed bottle that can only be used as a storage instrument into three main parts, namely, a liquid storage chamber 1, a liquid transfer device 3, and a quantitative chamber 2; the liquid storage chamber 1 is spacious for storage; the quantitative chamber 2 has a scale for measuring, and can also be used as a reaction container for simple liquid mixing reactions; a liquid flow switch 4 is arranged between the two chambers, thereby realizing the storage of multiple liquid medicines, the combination of quantitative and reaction functions, and more accurate measurement and storage of liquid medicines under the condition of greatly reducing pollution.

[0059] The upper part of the liquid storage chamber 1 is a replaceable inner and outer double-layer structure, the outer layer is set as an opening and closing structure 101 that can be opened with double doors in the middle of the bottle body, and a replaceable liner 102 is installed inside, so that different liquids can be stored more efficiently;

[0060] The central liquid transfer device 3 adopts a rotary liquid flow switch 4 to control the opening and closing state of the liquid channel, making the control of the liquid flow rate easier to achieve and the operation simple and convenient; at the same time, the central liquid transfer device 3 is provided with a central rotating shaft 302, so that the liquid flow switch 4 can reach the bottom of four different inner liners 102 in the liquid storage chamber 1 through a horizontal rotation, thereby realizing the transfer of liquid in different inner liners 102 in the liquid storage chamber 1.

[0061] The rotating movable liquid flow switch 4 adopts a rotating thread structure inside, and the middle liquid flow switch adopts a 4 rotating thread structure (such as Fig.10 , 11 , as shown in 12), by twisting and rotating the switch valve core, the horizontal axis of the flow channel is displaced, and the horizontal axis part is hollowed out to form a vent pipe 304 and a liquid channel 305, so as to realize the connection between the inner liner 102 of the liquid storage chamber 1 and the quantitative chamber 2, and the liquid flows smoothly under the condition of balanced air pressure in the two chambers. The rotation and displacement of the horizontal axis can change the overlapping area of ​​the solid part and the hollow part, and control the liquid flow rate on the basis of realizing the synchronous opening and closing of the liquid channel 305 and the vent pipe 304.

[0062] The exterior of the liquid transfer device 3 draws on the shaft structure of a yo-yo, and a rotating roller 303 is inserted between the rotatable shell 301 containing the liquid channel 305 and the ventilation tube 304 and the central shaft 302, and the rotatable shell 301 is smoothly rotated by rotating the roller 303; at the same time, the fixed connection shell 306 of the central shaft 302 and the quantitative chamber 2 is connected and stabilized by four connecting support columns 307, and a hollow structure is set between the fixed connection shell 306 and the central shaft 302, and the fixed connection shell 306 is connected to the quantitative chamber 2, thereby realizing the integration of the liquid transfer device 3 and the lower quantitative chamber 2.

[0063] When measuring and fine-tuning the liquid medicine, a vent pipe 304 is used. The vent pipe 304 and the liquid channel 305 are opened and closed at the same time, so that the liquid medicine can flow smoothly during transfer and better achieve airtightness, thereby minimizing pollution to the greatest extent.

[0064] The interior below the quantitative chamber 2 is a slope structure 201 to reduce liquid residue. There is a cylindrical liquid extraction port at the bottom of the slope to allow the liquid to flow out, and a liquid extraction valve switch structure is connected to the cylindrical small port to control the outflow of the liquid. At the same time, solid glass material is added to the bottom to move the center of gravity of the device downward to stabilize the device and minimize the residue of liquid in the quantitative chamber 2.

[0065] The operation method of the device is:

[0066] Upper liquid storage chamber: open the outer opening and closing structure 101, put in the replaceable inner liner 102, put different liquids in each inner liner 102, and then close the outer opening and closing structure 101;

[0067] Middle liquid transfer device: when a certain liquid is needed, the liquid flow switch 4 is rotated, and the sealing cover 1022 below the inner liner 102 is opened, and the perforated connecting plate 5 is rotated to connect the liquid transfer device 3 with the corresponding inner liner 102;

[0068] The quantitative chamber below: When a certain liquid of the required volume flows in, the liquid flow switch 4 is closed, and the liquid can also flow out from the bottom liquid outlet after reacting in the quantitative chamber 2.

[0069] When measuring the liquid medicine:

[0070] The liquid channel 305 is rotated to the bottom of the target liner 102, and the liquid flow switch 4 is rotated to make the liquid channel 305 and the vent pipe 304 communicate with the quantitative chamber, and the sealing cover 1022 at the bottom of the liner 102 where the required liquid is located is opened. At this time, the liquid medicine will flow from the liquid storage chamber 1 into the quantitative chamber 2, and will be collected to the liquid extraction valve switch through the italic structure 201;

[0071] When the liquid in the quantitative chamber 2 is about to reach the scale line corresponding to the required measurement, the liquid flow switch 4 is slowly turned to narrow the liquid channel 305, thereby slowing down the liquid flow rate, and finally completing the precise measurement;

[0072] Open the liquid extraction valve switch on the side wall of the quantitative chamber 2 to complete the acquisition of quantitative liquid.

[0073] When the quantitative chamber 2 is used as a simple mixing reaction container for multiple liquids:

[0074] By observing the changes in the scale on the side wall of the inner tank 102 corresponding to the required liquid level, the precise amount of liquid transferred from the storage chamber 1 to the quantitative chamber 2 can be known, and finally different liquids can be mixed and reacted in the quantitative chamber 2 according to the required different proportions.

[0075] The closed integrated storage structure provided by the present invention greatly improves the accuracy of chemical liquid metering; the integrated design makes it not cumbersome during operation; storing multiple reagents in one cavity is also its characteristic; the most important point is that because the quantitative measurement and storage are carried out in a closed system, the contact with air can be avoided as much as possible, which greatly reduces the possibility of contamination and deterioration, and solves the problem of liquid oxidation and deterioration; the structural design of the bottom can greatly reduce the liquid residue. In addition to its application in the scientific field, it can also be used in daily life: when patients strive for precision in medication, this product is a good choice; when a chef who strives for perfection cooks, this product may be able to achieve good control on the amount of seasoning, greatly reducing the possibility of mistakes causing defects in dishes.

[0076] It integrates multiple functions such as liquid medicine quantification, storage of multiple liquids, simple mixing reaction between liquid medicines, and pollution reduction, and can store and measure liquid medicines quickly, efficiently, accurately, and environmentally friendly.

[0077] Description: One of the functions of the scale lines of the inner liner 102 of the liquid storage chamber 1 is to read the storage amount of the liquid, the main purpose is to facilitate the user to add the stored liquid in time; the second function of the scale of the inner liner 102 is: when measuring multiple liquids, the amount transferred to the quantitative chamber can be known by the corresponding scale difference before and after the liquid surface in the inner liner 102. When measuring a single liquid, the scale of the inner liner 102 of the storage chamber 1 is not obvious, and it will make the determination of the liquid transfer amount more cumbersome to a certain extent.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A closed integrated storage structure, characterized in that: It comprises a liquid storage chamber (1), a quantitative chamber (2) and a liquid transfer device (3); The liquid storage chamber (1) is a double-layer structure with inner and outer layers, the outer layer is arranged as an open-close structure (101), and the inner layer is provided with a plurality of replaceable inner containers (102) for storing liquids respectively; The liquid transfer device (3) is arranged between the liquid storage chamber (1) and the quantitative chamber (2); the liquid transfer device (3) has a rotating shaft structure inside and a rotating structure outside, and is used to transfer the liquid in the liquid storage chamber (1) to the quantitative chamber (2); A slope structure (201) is provided inside the lower part of the quantitative cavity (2) for measuring and removing the drug solution.

2. The closed integrated storage structure according to claim 1, characterized in that: The liquid transfer device (3) comprises a rotatable housing (301), a central rotation axis (302) is arranged at the center of the rotatable housing (301), and a plurality of rotating rollers (303) are arranged in the gap between the rotatable housing (301) and the central rotation axis (302), so that the rotatable housing (301) can rotate along the rotating rollers (303); The lower end of the central rotating shaft (302) passes through the rotatable housing (301) and is firmly connected to the fixed connecting housing (306) above the quantitative chamber (2) via four evenly arranged connecting support columns (307); a hollow structure is arranged between the fixed connecting housing (306) and the central rotating shaft (302); and the fixed connecting housing (306) is connected to the quantitative chamber (2).

3. The closed integrated storage structure according to claim 2, characterized in that: The rotatable housing (301) is provided with a vent pipe (304) and a liquid channel (305), respectively. The vent pipe (304) and the liquid channel (305) penetrate the rotatable housing (301) and communicate with the hollow structure. The rotatable housing (301) is provided with a liquid flow switch (4), and one end of the liquid flow switch (4) penetrates the vent pipe (304) and the liquid channel (305).

4. The closed integrated storage structure according to claim 1, characterized in that: The lower ends of the plurality of inner containers (102) are respectively connected to the perforated connecting plate (5), and the lower end support of the inner container (102) is inserted into the groove of the perforated connecting plate (5) to fix the inner container (102). The perforated connecting plate (5) is provided with a vent pipe opening and a liquid channel opening, and the perforated connecting plate (5) is arranged above the liquid transfer device (3).

5. The closed integrated storage structure according to claim 1, characterized in that: The outer wall of the inner container (102) is provided with scale lines, and the bottom of the inner container (102) is provided with a bottom switch (1021), and a sealing cover (1022) is provided in a slot of the bottom switch (1021).

6. The closed integrated storage structure according to claim 1, characterized in that: The opening and closing structure (101) is an opening and closing structure capable of opening two doors in the middle, and movable shells (1011) on both sides are arranged on the opening and closing structure (101) via rotating shafts (1012), and the two movable shells (1011) are opened and closed via buckles (1013).

7. The closed integrated storage structure according to claim 1, characterized in that: The outer wall of the quantitative cavity (2) is provided with uniform scales, the outer edge of the slope structure (201) in the quantitative cavity (2) is provided with non-uniform scale lines, and the slope structure (201) is a solid glass structure.

8. The closed integrated storage structure according to claim 7, characterized in that: The outer wall of the quantitative cavity (2) at the lowest point of the slope structure (201) is provided with a liquid taking port, and a liquid taking valve switch is provided on the liquid taking port.

9. A method for operating a closed integrated storage structure, implemented based on the closed integrated storage structure according to any one of claims 1 to 8, characterized in that: include: Upper liquid storage chamber: open the outer opening and closing structure (101), put in the replaceable inner liner (102), put different liquids in each inner liner (102), and then close the outer opening and closing structure (101); Middle liquid transfer device: when a certain liquid is needed, the liquid flow switch (4) is rotated, and the sealing cover (1022) below the inner container (102) is opened, and the perforated connecting plate (5) is rotated to connect the liquid transfer device (3) with the corresponding inner container (102); The lower quantitative chamber: when a certain liquid of a required volume flows in, the liquid flow switch (4) is closed, and the liquid flows out from the liquid taking port at the bottom of the quantitative chamber (2).

10. The working method of the closed integrated storage structure according to claim 9, characterized in that: When measuring a certain volume of liquid, it includes: The liquid channel (305) is rotated to the bottom of the target inner liner (102), and the liquid flow switch (4) is rotated to connect the liquid channel (305) and the ventilation tube (304) with the quantitative chamber (2). The sealing cover (1022) at the bottom of the inner liner (102) where the required liquid is located is opened. At this time, the liquid medicine will flow from the liquid storage chamber (1) into the quantitative chamber (2) and will be collected at the liquid extraction valve switch through the italic structure (201); When the liquid in the quantitative chamber (2) is about to reach the scale line corresponding to the required measurement, the liquid flow switch (4) is slowly turned to narrow the liquid channel (305), thereby slowing down the liquid flow rate, and finally completing accurate quantitative measurement; Open the liquid extraction valve switch on the side wall of the quantitative chamber (2) to obtain a quantitative amount of liquid; When the quantitative chamber (2) is used as a simple mixing reaction container for multiple liquids: By observing the change in the scale on the side wall of the inner container (102) corresponding to the required liquid level, the precise amount of liquid transferred from the storage chamber (1) to the quantitative chamber (2) can be obtained, and finally different liquids can be mixed and reacted in the quantitative chamber (2) according to the required different proportions.

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