Liquid level detection mechanism and container assembly

By using a combination of magnetic parts and magnetic sensors in the liquid level detection system, combining floating arm and shell structure, the accuracy of existing liquid level detection methods in monitoring thick materials is solved, achieving high accuracy and Real-time liquid level monitoring.

CN222481584UActive Publication Date: 2025-02-14SHENZHEN PINDAO TECH R&D CO LTD
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Patent Information

Application Number
CN202420809258.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-17
Publication Date
2025-02-14
Estimated Expiration
2034-04-17

AI Technical Summary

Technical Problem

The existing liquid level detection methods have accuracy problems when monitoring thick materials. The capacitor sensor is affected by the wall hanging phenomenon, and the naked eye observation is disturbed by subjectivity and external factors, so real-time monitoring cannot be achieved.

Method used

Using a combination of magnetic parts and magnetic sensors, the magnetic parts undergo a height-direction displacement when the liquid level changes. The magnetic sensor detects changes in the magnetic field to judge the liquid level, and combines the floating arm and the shell structure to ensure the accuracy and stability of the detection.

Benefits of technology

It improves the accuracy of liquid level monitoring, reduces dependence on material consistency and operator judgment, realizes real-time monitoring, and enhances the reliability of liquid level detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of liquid level detection, and discloses a liquid level detection mechanism and a container assembly, the liquid level detection mechanism is suitable for monitoring the liquid level of a material in a container, the container is installed on a base, and the liquid level detection mechanism comprises a magnetic part and a control part, the displacement in the height direction can be generated along with the change of the liquid level of the material in the container; the magnetic sensor is fixedly connected with the base, and the magnetic sensor is matched with the magnetic part so as to be suitable for detecting the height change of the magnetic part. According to the liquid level detection mechanism, the distance between the magnetic part and the magnetic sensor is changed by enabling the magnetic part to change in the height direction under the action of buoyancy, so that the magnetic sensor detects the change of a magnetic field, the liquid level is judged, the liquid level detection mechanism is not influenced by the consistency of materials and the judgment of naked eyes of an operator, and the accuracy of liquid level monitoring is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of liquid level detection, in particular to a liquid level detection mechanism and a container component. Background Art

[0002] A beverage machine usually includes a base and a container placed on the base. In order to avoid failure in making beverages due to insufficient juice materials, the liquid level of the material in the container needs to be monitored in real time. Common monitoring methods include installing a capacitive sensor on the base to sense the liquid level or observing the liquid level with the naked eye. However, since thick materials may cling to the wall, the monitoring accuracy of the capacitive sensor will be seriously affected. In addition, naked eye observation is subject to the subjective feeling of the human eye, resulting in differences in liquid level judgment between different operators, which also reduces the accuracy of liquid level monitoring. Utility Model Content

[0003] In view of this, the utility model provides a liquid level detection mechanism and a container assembly to solve the problem of poor accuracy in monitoring the liquid level of materials in the container.

[0004] In a first aspect, the utility model provides a liquid level detection mechanism, which is suitable for monitoring the liquid level of a material inside a container, wherein the container is mounted on a base, and the liquid level detection mechanism comprises:

[0005] The magnetic member is located in the container and is adapted to move in height direction as the liquid level of the material in the container changes;

[0006] The magnetic sensor is fixedly connected to the base, and cooperates with the magnetic component to detect the height change of the magnetic component.

[0007] Beneficial effect: By making the magnetic part change in height under the action of buoyancy, the distance between it and the magnetic sensor is changed, so that the magnetic sensor detects the change in magnetic field and thus determines the liquid level. This is not affected by the material consistency and the operator's visual judgment, which is beneficial to improving the accuracy of liquid level monitoring.

[0008] In an optional embodiment, the liquid level detection mechanism also includes a float arm, a first end of the float arm is connected to the bottom area of ​​the container side wall, and a second end of the float arm is connected to the magnetic member, and the float arm is suitable for movably fixing the magnetic member to the container.

[0009] Beneficial effects: The floating arm limits the activity area of ​​the magnetic part to prevent the magnetic part from moving arbitrarily, thereby affecting the monitoring accuracy of the magnetic sensor, and can prevent the magnetic part from colliding with the inner wall of the container, thereby causing damage to the magnetic part or the container.

[0010] In an optional embodiment, the floating arm is a flexible arm.

[0011] Beneficial effect: By making the floating arm a flexible arm, the magnetic part can be displaced in the height direction under the action of buoyancy.

[0012] In an optional embodiment, the outer side of the magnetic member is wrapped with a shell, the density of the shell is lower than the density of the material, and the second end of the floating arm is fixedly connected to the shell.

[0013] Beneficial effect: By wrapping the shell outside the magnetic part, the magnetic part is prevented from directly contacting the material, and by making the density of the shell smaller than the density of the material, it is ensured that the shell and the magnetic part inside it are not affected by the density of the material and float.

[0014] In an optional embodiment, a hole is opened in the side wall of the container corresponding to the float arm, and the first end of the float arm is inserted into the hole; the float arm is provided with a first abutting portion and a second abutting portion located on both sides of the hole at intervals, and one of the first abutting portion and the second abutting portion is tightly abutted against the inner wall of the container, and the other is tightly abutted against the outer wall of the container.

[0015] Beneficial effect: The float arm is clamped to the hole of the container side wall through the first abutment part and the second abutment part, so as to form a detachable connection with the container, which is beneficial to the maintenance and replacement of the float arm, and is tightly abutted against the container side wall through the first abutment part and the second abutment part to prevent material leakage at the hole.

[0016] In an optional implementation, the magnetic component includes a magnet; and the magnetic sensor includes a Hall sensing module.

[0017] In an optional embodiment, the liquid level detection mechanism further includes a display screen, which is electrically connected to the magnetic sensor, so that an operator can visually observe the liquid level through the display screen.

[0018] Beneficial effect: Displaying the liquid level of the material on the display screen is helpful for operators to observe the liquid level situation intuitively.

[0019] According to an embodiment of the present utility model, on the other hand, a container assembly is provided, comprising:

[0020] A container, the interior of which is suitable for holding materials;

[0021] A base, wherein at least one mounting groove is formed on the base, and the number of containers includes at least one, and each container is detachably mounted in one mounting groove;

[0022] As in the above-mentioned liquid level detection mechanism, a magnetic component is arranged in the container, and at least one magnetic sensor is arranged in each mounting groove, so as to enable the magnetic sensor to cooperate with the magnetic component.

[0023] Beneficial effects: Because the container assembly includes a liquid level detection mechanism, it has the same effects as the liquid level detection mechanism, and its beneficial effects are not repeated here.

[0024] In an optional embodiment, the side wall and / or the bottom wall of the container is recessed to form a clearance groove corresponding to the magnetic sensor, the clearance groove is suitable for making way for the magnetic sensor, and the magnetic member is located above the clearance groove.

[0025] Beneficial effect: By forming a recessed groove on the side wall and / or the bottom wall of the container, the magnetic sensor can be arranged directly below the magnetic component, thereby improving the detection accuracy of the magnetic sensor.

[0026] In an optional embodiment, at least one limiting block is fixedly connected to the inner wall of the installation groove, and the limiting block is suitable for limiting the side wall of the container.

[0027] Beneficial effect: The side wall of the container is limited by the limit block to prevent the container from accidentally separating from the base, thereby improving the overall stability of the container assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A three-dimensional schematic diagram of the container assembly of the utility model Figure 1 ;

[0030] Figure 2 It is a cross-sectional schematic diagram of the container assembly of the utility model;

[0031] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0032] Figure 4 for Figure 2 Schematic diagram of the cross section at A in the middle;

[0033] Figure 5 A three-dimensional schematic diagram of the container assembly of the utility model Figure 2 .

[0034] Description of reference numerals:

[0035] 1. Base; 11. Mounting groove; 12. Limit block; 2. Container; 21. Make way groove; 22. Stirring rod; 3. Magnetic member; 4. Magnetic sensor; 5. Floating arm; 51. First abutting portion; 52. Second abutting portion; 6. Shell. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] Automated tea drink making equipment ensures that the beverage making process is more accurate and standardized through automated stirring, discharging, sugaring and other functions. In automated tea drink making equipment, due to the wide variety of materials, and the containers for storing materials sometimes need to be placed in the refrigerator of the automated tea drink making equipment, it is not convenient for the operator to directly observe the liquid level with the naked eye, and frequent observation also greatly affects efficiency. At the same time, in order to avoid the failure of making drinks due to insufficient certain juice materials, a method is needed to monitor the liquid level in real time. Common methods for monitoring liquid levels on the market currently include: counting the number of extracted materials in the background, and calculating the remaining liquid level through the system; sensing the liquid level by adding a capacitive sensor to the base of the juice pot; and observing with the naked eye of the operator. However, when the system is used to calculate the remaining liquid level, the system software development is complex and requires a lot of manpower. If the amount of water pumped cannot be accurately controlled, the calculation is prone to errors, and the biggest problem is that the amount of materials is uncertain when the store replenishes materials. It may be replenished a little or full, and it is difficult to measure the specific amount, resulting in inability to calculate; when using the method of using capacitive sensors to sense the liquid level, the principle of the capacitive sensor is to sense whether there is material in front to send a signal, but some materials such as milk, mango puree and other thick materials have serious wall hanging phenomenon, which seriously affects the accuracy of the sensor; when using the method of naked eye observation, subject to the subjective feeling of the human eye, the operator's judgment is easily affected by factors such as light, angle and vision, resulting in differences in liquid level judgment between different operators. Secondly, naked eye observation cannot provide accurate liquid level data to the scale, and it is impossible to determine whether the remaining materials can still make a cup of drink. And naked eye observation cannot achieve real-time monitoring. During the peak period of beverage production, the operator may need to handle multiple orders at the same time, and it is impossible to ensure timely and accurate observation of the liquid level of each material. In summary, the naked eye observation of liquid level has the disadvantages of subjectivity, lack of precision, easy interference from external factors, and inability to achieve real-time monitoring. Therefore, a method is needed to accurately monitor the liquid level changes in the container, so as to ensure that during the process of making drinks by the automatic tea making equipment, the operator can replenish materials in time according to the liquid level prompt.

[0041] Combine the following Figures 1 to 5 , describing an embodiment of the utility model.

[0042] According to an embodiment of the present utility model, on the one hand, a liquid level detection mechanism is provided, which is suitable for monitoring the liquid level of the material inside the container 2, the container 2 is installed on the base 1, and the liquid level detection mechanism includes:

[0043] The magnetic member 3 is located in the container 2 and is adapted to move in the height direction as the liquid level of the material in the container 2 changes;

[0044] The magnetic sensor 4 is fixedly connected to the base 1 , and cooperates with the magnetic component 3 to detect the height change of the magnetic component 3 .

[0045] The liquid level detection mechanism provided in this embodiment causes the magnetic member 3 to change in height under the action of buoyancy to change the distance between it and the magnetic sensor 4, so that the magnetic sensor 4 detects the change in the magnetic field, thereby judging the liquid level. This mechanism is not affected by the material consistency and the operator's naked eye judgment, and is conducive to improving the accuracy of liquid level monitoring.

[0046] Specifically, when the material level inside the container 2 changes, the magnetic part 3 is displaced in the height direction by the buoyancy of the material. Since the magnetic sensor 4 is fixedly connected to the base 1, the distance between the magnetic part 3 and the magnetic sensor 4 changes, so that the magnetic field of the magnetic part 3 at the magnetic sensor 4 changes, and then the circuit system monitors the liquid level change through the magnetic field change detected by the magnetic sensor 4. The material level is monitored by the linkage between the magnetic part 3 in the container 2 and the magnetic sensor 4 on the base 1, which is not affected by the material consistency and the operator's naked eye judgment; and the circuit system can directly obtain the signal from the magnetic sensor 4 for judgment, without complicated calculations, which is conducive to reducing the occupation of circuit system resources. In addition, the operator does not need to frequently observe the container 2, which is conducive to saving labor costs. Through the linkage between the magnetic sensor 4 and the magnetic part 3, it is also possible to detect whether there is a container 2 on the base 1. Among them, converting the size and change of the magnetic field into an electrical signal by the magnetic sensor 4, and converting the electrical signal into a liquid level signal that is easy to observe by the circuit system are conventional technical means of those skilled in the art, which will not be repeated here.

[0047] In some embodiments, in combination Figures 1 to 5 As shown, the liquid level detection mechanism also includes a float arm 5, a first end of the float arm 5 is connected to the bottom area of ​​the side wall of the container 2, and a second end of the float arm 5 is connected to the magnetic member 3. The float arm 5 is suitable for movably fixing the magnetic member 3 to the container 2.

[0048] The liquid level detection mechanism provided in this embodiment limits the activity area of ​​the magnetic part 3 by the floating arm 5 to prevent the magnetic part 3 from moving arbitrarily, thereby affecting the monitoring accuracy of the magnetic sensor 4, and can prevent the magnetic part 3 from colliding with the inner wall of the container 2, thereby causing damage to the magnetic part 3 or the container 2.

[0049] Specifically, a stirring rod 22 is provided inside the container 2. During the process of making beverages, the stirring rod 22 rotates and drives the material to move to prevent the material from depositing. The floating arm 5 limits the activity area of ​​the magnetic part 3 to prevent the magnetic part 3 from moving with the movement of the material, thereby affecting the monitoring accuracy of the magnetic sensor 4 and preventing the magnetic part 3 from colliding with the inner wall of the container 2.

[0050] In some embodiments, in combination Figures 1 to 5 As shown, the floating arm 5 is a flexible arm.

[0051] The liquid level detection mechanism provided in this embodiment makes the floating arm 5 a flexible arm so as to make the magnetic member 3 change its displacement in the height direction under the action of buoyancy.

[0052] Specifically, the material of the float arm 5 is silicone, the first end of the float arm 5 is fixedly connected to the side wall of the container 2, and the second end of the float arm 5 is fixedly connected to the magnetic member 3. Since the float arm 5 is a flexible arm, when the magnetic member 3 is displaced in the height direction, the float arm 5 is deformed to adapt to the position change of the magnetic member 3 in the height direction. As an additional, the first end of the float arm 5 is hingedly connected to the side wall of the container 2. When the magnetic member 3 is displaced in the height direction, in addition to being deformed, the float arm 5 can also adapt to the position change of the magnetic member 3 in the height direction by changing the angle between it and the side wall. As a variation, the first end of the float arm 5 is slidably connected to the side wall of the container 2 in the height direction. When the magnetic member 3 is displaced in the height direction, the float arm 5 slides on the side wall of the container 2 to adapt to the position change of the magnetic member 3 in the height direction.

[0053] In some embodiments, in combination Figures 1 to 5 As shown, the outer side of the magnetic member 3 is wrapped with a shell 6 , the density of the shell 6 is lower than the density of the material, and the second end of the floating arm 5 is fixedly connected to the shell 6 .

[0054] The liquid level detection mechanism provided in this embodiment wraps the shell 6 on the outside of the magnetic part 3 to prevent the magnetic part 3 from directly contacting the material, and makes the density of the shell 6 smaller than the density of the material to ensure that the shell 6 and the magnetic part 3 inside it are not affected by the material density and float.

[0055] Specifically, the housing 6 and the floating arm 5 are made of TPE (thermoplastic elastomer) and / or PP (polypropylene) food grade materials to avoid food safety problems. The housing 6 isolates the magnetic part 3 and the material to prevent the magnetic part 3 from contaminating the material, thereby avoiding possible food safety accidents. The density of PP material is 0.91g / cm 3 The density of TPE material can be between 0.84g / cm3 and 1.25g / cm 3 The shell 6 can be adjusted according to the density of the material, and since the shell 6 has a cavity for accommodating the magnetic member 3, the buoyancy of the shell 6 is further increased to ensure that the shell 6 and the magnetic member 3 therein can undergo a displacement change in the height direction when the material liquid level changes.

[0056] In some embodiments, in combination Figures 1 to 5As shown, a hole is opened on the side wall of the container 2 corresponding to the float arm 5, and the first end of the float arm 5 is inserted into the hole; the float arm 5 is provided with a first abutting portion 51 and a second abutting portion 52 located on both sides of the hole at intervals, one of the first abutting portion 51 and the second abutting portion 52 is tightly abutted against the inner wall of the container 2, and the other is tightly abutted against the outer wall of the container 2.

[0057] In the liquid level detection mechanism provided in this embodiment, the float arm 5 is clamped to the hole in the side wall of the container 2 through the first abutment portion 51 and the second abutment portion 52, so as to form a detachable connection with the container 2, which is beneficial to the maintenance and replacement of the float arm 5, and is tightly abutted against the side wall of the container 2 through the first abutment portion 51 and the second abutment portion 52 to prevent material leakage at the hole.

[0058] Specifically, the first abutment portion 51 and the second abutment portion 52 are respectively arranged around the float arm 5, and the first abutment portion 51 and the second abutment portion 52 can be integrally formed with the float arm 5, or can be connected together by a fixed connection. The spacing between the first abutment portion 51 and the second abutment portion 52 is adapted to the thickness of the side wall of the container 2 near the hole, so that the first abutment portion 51 and the second abutment portion 52 are located on the inner and outer sides of the side wall of the container 2, and are respectively tightly abutted against the side wall of the container 2, and along the direction perpendicular to the plane of the side wall of the container 2 where the hole is located, the projections of the first abutment portion 51 and the second abutment portion 52 both cover the hole, thereby preventing the material from leaking at the hole. Since the float arm 5 is made of a flexible material, it can be directly inserted into the hole, which is convenient for disassembly, cleaning, maintenance and replacement, which is conducive to reducing maintenance costs and downtime.

[0059] In some embodiments, in combination Figures 1 to 5 As shown, the magnetic component 3 includes a magnet; the magnetic sensor 4 includes a Hall sensing module.

[0060] Specifically, the magnetic component 3 includes a magnet and an electromagnet; the magnetic sensor 4 includes a Hall sensing module, a magnetoresistive sensor, a magnetic induction sensor, and a magnetic integrated sensor.

[0061] In some embodiments, in combination Figures 1 to 5 As shown, the liquid level detection mechanism also includes a display screen, which is electrically connected to the magnetic sensor 4, so that the operator can visually observe the liquid level through the display screen.

[0062] The liquid level detection mechanism provided in this embodiment displays the liquid level of the material through a display screen, which is helpful for operators to observe the liquid level situation intuitively.

[0063] Specifically, the base 1 is internally provided with a circuit system for controlling the automated tea making equipment, and a display screen electrically connected to the circuit system. The display screen is suitable for displaying the material level signal monitored by the magnetic sensor 4, so that the operator can visually observe the liquid level through the display screen and replenish the material in time.

[0064] According to an embodiment of the present utility model, on the other hand, a container assembly is provided, comprising:

[0065] A container 2, the interior of which is suitable for containing materials;

[0066] A base 1, wherein at least one mounting groove 11 is formed on the base 1, and the number of containers 2 includes at least one, and each container 2 is detachably mounted in one mounting groove 11;

[0067] As in the above-mentioned liquid level detection mechanism, a magnetic component 3 is disposed in the container 2 , and at least one magnetic sensor 4 is disposed in each mounting groove 11 , so as to enable the magnetic sensor 4 to cooperate with the magnetic component 3 .

[0068] Specifically, the container assembly includes a base 1 and a container 2 mounted on the base 1, such as an automated tea making device. The container 2 includes at least one, and each container 2 is suitable for containing a material. The container 2 is detachably mounted in the mounting groove 11, so that when the material in the container 2 is insufficient, the material can be replaced or added to the container 2 in time. At least one magnetic sensor 4 is provided in each mounting groove 11, which is suitable for detecting whether a container 2 is mounted on the mounting groove 11.

[0069] In some embodiments, in combination Figures 1 to 5 As shown, the side wall and / or the bottom wall of the container 2 is recessed corresponding to the magnetic sensor 4 to form a clearance groove 21 , and the clearance groove 21 is suitable for making way for the magnetic sensor 4 , and the magnetic member 3 is located above the clearance groove 21 .

[0070] The container assembly provided in this embodiment forms a recess 21 on the side wall and / or bottom wall of the container 2 to facilitate the magnetic sensor 4 to be disposed directly below the magnetic member 3, thereby improving the detection accuracy of the magnetic sensor 4.

[0071] Preferably, the magnetic member 3 is located directly above the clearance groove 21 along the gravity direction. After the container 2 is mounted on the base 1, the magnetic sensor 4 is located in the clearance groove 21, so that the magnetic sensor 4 is located below the magnetic member 3, which is conducive to improving the detection accuracy of the magnetic sensor 4. As a feasible implementation form, when the material level is lower than the lowest point of the magnetic member 3, the magnetic member 3 is not subject to buoyancy and falls on the top wall of the clearance groove 21 facing the inside of the container 2.

[0072] In some embodiments, in combination Figures 1 to 5 As shown, at least one limiting block 12 is fixedly connected to the inner wall of the installation groove 11 , and the limiting block 12 is suitable for limiting the side wall of the container 2 .

[0073] The container assembly provided in this embodiment limits the side wall of the container 2 by the limiting block 12 to prevent the container 2 from accidentally separating from the base 1, thereby improving the overall stability of the container assembly.

[0074] Specifically, the limit block 12 and the magnetic sensor 4 are respectively located at the two ends of the mounting groove 11 along its length direction, and form limits on the two end faces of the container 2 along the length direction of the mounting groove 11. The side wall of the mounting groove 11 is suitable for forming limits on the side of the container 2 along the length direction of the mounting groove 11, so that the container 2 is installed in the mounting position formed by the limit block 12, the magnetic sensor 4 and the inner wall of the mounting groove 11 under the action of gravity, and then when the container assembly is working, the container 2 is prevented from separating from the base 1 along the length direction of the mounting groove 11, which is beneficial to improving the overall stability of the container assembly.

[0075] Obviously, the above embodiments are only examples for clear explanation, and are not intended to limit the implementation methods. Although the embodiments of the present utility model are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations are all within the scope defined by the present utility model.

Claims

1. A liquid level detection mechanism, characterized in that: Suitable for monitoring the liquid level of the material inside the container (2), the container (2) is mounted on the base (1), and the liquid level detection mechanism comprises: A magnetic member (3) is located in the container (2) and is adapted to move in a height direction as the liquid level of the material inside the container (2) changes; A magnetic sensor (4) is fixedly connected to the base (1), and the magnetic sensor (4) cooperates with the magnetic member (3) to detect a height change of the magnetic member (3); The liquid level detection mechanism further comprises a floating arm (5), a first end of the floating arm (5) being connected to the bottom area of ​​the side wall of the container (2), a second end of the floating arm (5) being connected to the magnetic member (3), and the floating arm (5) being adapted to enable the magnetic member (3) to be movably fixedly connected to the container (2); The floating arm (5) is a flexible arm; The outer side of the magnetic member (3) is wrapped with a shell (6), the density of the shell (6) is lower than the density of the material, and the second end of the floating arm (5) is fixedly connected to the shell (6).

2. The liquid level detection mechanism according to claim 1, characterized in that: A hole is provided on the side wall of the container (2) corresponding to the float arm (5), and the first end of the float arm (5) is inserted into the hole; a first abutting portion (51) and a second abutting portion (52) are arranged on the float arm (5) at intervals and are located on both sides of the hole; one of the first abutting portion (51) and the second abutting portion (52) is tightly abutted against the inner wall of the container (2), and the other is tightly abutted against the outer wall of the container (2).

3. The liquid level detection mechanism according to any one of claims 1 to 2, characterized in that: The magnetic component (3) comprises a magnet; and the magnetic sensor (4) comprises a Hall induction module.

4. The liquid level detection mechanism according to any one of claims 1 to 2, characterized in that: The liquid level detection mechanism also includes a display screen, which is electrically connected to the magnetic sensor (4), and an operator is suitable for visually observing the liquid level through the display screen.

5. A container assembly, characterized in that: include: A container (2) having an interior suitable for containing materials; A base (1), wherein at least one mounting groove (11) is formed on the base (1), the number of the containers (2) includes at least one, and each of the containers (2) is detachably mounted in one of the mounting grooves (11); The liquid level detection mechanism according to any one of claims 1 to 4, wherein a magnetic member (3) is arranged in the container (2), and at least one magnetic sensor (4) is arranged in each of the mounting grooves (11), so as to enable the magnetic sensor (4) to cooperate with the magnetic member (3).

6. The container assembly according to claim 5, characterized in that: The side wall and / or the bottom wall of the container (2) is recessed corresponding to the magnetic sensor (4) to form a clearance groove (21), and the clearance groove (21) is suitable for making way for the magnetic sensor (4), and the magnetic member (3) is located above the clearance groove (21).

7. The container assembly according to claim 6, characterized in that: At least one limiting block (12) is fixedly connected to the inner wall of the installation groove (11), and the limiting block (12) is suitable for limiting the side wall of the container (2).