Accurate quantitative food detection sampler

Abstract

The utility model discloses an accurate quantitative food detection sampler, which belongs to the field of food detection sampling equipment and comprises a device shell, an inner container, an electric telescopic rod, a piston, a pressing plate, a spring, a pressure sensor, a support, a sampling nozzle and a conveying pipe. When the food sampling device is used for sampling food, a user holds the device shell and stretches the sampling nozzle into the food, upward force borne by the sampling nozzle can be transmitted to the device shell, then the electric telescopic rod is started to move the food into the inner container, and the food entering the inner container enables the weight of the inner container to be increased; and the pressure sensor can sense the weight of the food sampled in the inner container, so that the sampling amount can be more accurately and intuitively displayed to a user. Compared with the prior art, when the food sampling device is used for measuring the weight of food extracted into the inner container, the influence of buoyancy caused by contact of the sampling nozzle and the food on weight measurement is avoided, and the weight of the sampled food is more accurate.

Description

Technical Field

[0001] This utility model belongs to the field of food testing and sampling equipment, and in particular relates to a precise quantitative food testing sampler. Background Technology

[0002] With social development and the improvement of people's living standards, food safety issues have received increasing public attention. To ensure food safety and quality, a series of rigorous tests are required. During the testing process, the accuracy and representativeness of the samples are crucial, as they directly affect the reliability of the test results. Traditional sampling methods often rely on manual operation, which can easily lead to uneven sampling, sample contamination, or cross-contamination, affecting the final test results.

[0003] Furthermore, in many cases, different types of food testing require precise control of the sample volume or weight. For example, in pesticide residue testing, excessive or insufficient sample volume may lead to decreased detection sensitivity, making it impossible to accurately assess the content of harmful substances in food. Therefore, achieving accurate quantitative sampling is crucial for ensuring the accuracy of test results. Utility Model Content

[0004] This invention provides a precise quantitative food testing sampler to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A precise quantitative food testing sampler includes a housing, an inner liner, an electric telescopic rod, a piston, a pressure plate, a spring, a pressure sensor, a bracket, a sampling nozzle, and a delivery tube. The housing and the inner liner are slidably connected. The electric telescopic rod is located above the housing and fixedly connected to it. The output end of the electric telescopic rod is located inside the inner liner and fixedly connected to the piston. The piston is located inside the inner liner and slidably connected to it. Each side of the inner liner is fixedly connected to a pressure plate, which is slidably connected to the housing. One side of the spring is mounted on the pressure plate, and the other side is mounted on the pressure sensor, which is located inside the housing and fixedly connected to it. The bracket is located below the housing and fixedly connected to it, and is fixedly connected to the sampling nozzle. One side of the delivery tube is mounted below the inner liner, and the other side is slidably mounted inside the sampling nozzle.

[0007] Furthermore, the device housing is provided with a rubber pad, which surrounds the device housing and is fixedly connected to the device housing.

[0008] Furthermore, the device housing is equipped with a control screen, which is fixedly connected to the device housing, electrically connected to the electric telescopic rod, and electrically connected to the pressure sensor.

[0009] Furthermore, the inner liner is provided with a liquid inlet, which is fixedly connected to the inner liner, and the delivery pipe is installed below the liquid inlet.

[0010] Furthermore, the inner liner is provided with a guide block, which is fixedly connected to the inner liner and slidably connected to the outer shell of the device.

[0011] Compared to existing technologies, the advantages of this utility model are as follows: This utility model provides a precise quantitative food testing sampler with the following beneficial effects. Through its structural design, when sampling food, the user holds the outer shell of the device and inserts the sampling nozzle into the food. When the sampling nozzle is inserted into the food, the food itself generates a certain upward force (buoyancy). The upward force on the sampling nozzle is transmitted to the outer shell of the device by the support. Then, the electric telescopic rod is activated, which drives the piston to move inside the inner liner, allowing the food to enter the inner liner through the sampling nozzle and the delivery tube. The food inside the inner liner increases its weight, causing it to move downwards due to a downward force (gravity). This downward movement drives the delivery tube to slide downwards within the sampling nozzle. This prevents the upward and downward forces from interfering with the measurement of the sampled food weight. Simultaneously, the downward movement of the inner liner moves the pressure plate downwards, compressing a spring. The spring transmits this force to a pressure sensor, which detects the weight of the sampled food inside the inner liner, allowing for a more accurate and intuitive display of the sample weight to the user. Compared to existing technologies, this invention, while measuring the weight of the food extracted into the inner liner, avoids the influence of buoyancy caused by the contact between the sampling nozzle and the food on the weight measurement, resulting in a more accurate measurement of the sampled food weight. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a precise quantitative food testing sampler described in this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of a precise quantitative food testing sampler described in this utility model;

[0014] Figure 3 This utility model describes Figure 2 A magnified structural diagram of point A shown.

[0015] In the diagram, 1. outer shell of the device; 2. inner liner; 3. electric telescopic rod; 4. piston; 5. pressure plate; 6. spring; 7. pressure sensor; 8. bracket; 9. sampling nozzle; 10. delivery pipe; 11. rubber pad; 12. control panel; 13. liquid inlet; 14. guide block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3 This utility model provides a technical solution: a precise quantitative food testing sampler, including a device shell 1, an inner liner 2, an electric telescopic rod 3, a piston 4, a pressure plate 5, a spring 6, a pressure sensor 7, a bracket 8, a sampling nozzle 9, and a delivery pipe 10. The device shell 1 is slidably connected to the inner liner 2. The electric telescopic rod 3 is located above the device shell 1 and is fixedly connected to the device shell 1. The output end of the electric telescopic rod 3 is located inside the inner liner 2 and is fixedly connected to the piston 4. The piston 4 is located inside the inner liner 2 and is slidably connected to the inner liner 2. Each side of the inner liner 2 is fixedly connected to a pressure plate 5. The pressure plate 5 is slidably connected to the device shell 1. One side of the spring 6 is mounted on the pressure plate 5, and the other side of the spring 6 is mounted on the pressure sensor 7. The pressure sensor 7 is located inside the device shell 1 and is fixedly connected to the device shell 1. The bracket 8 is located on the lower side of the device shell 1 and is fixedly connected to the device shell 1. The bracket 8 is fixedly connected to the sampling nozzle 9. One side of the delivery pipe 10 is mounted on the lower side of the inner liner 2, and the other side of the delivery pipe 10 is slidably mounted inside the sampling nozzle 9.

[0018] In this utility model, a rubber pad 11 is provided on the outer shell 1 of the device. The rubber pad 11 surrounds the outer shell 1 of the device and is fixedly connected to the outer shell 1 of the device. The rubber pad 11 on the outer shell 1 of the device increases the friction force when the user holds the outer shell 1 of the device, preventing the user's hand from slipping.

[0019] In this utility model, a control screen 12 is provided on the outer shell 1 of the device. The control screen 12 is fixedly connected to the outer shell 1 of the device, electrically connected to the electric telescopic rod 3, and electrically connected to the pressure sensor 7. Through the control screen 12 on the outer shell 1 of the device, the weight of the sampled food sensed by the pressure sensor 7 can be displayed on the control screen 12. At the same time, the weight of the food to be sampled can be set in advance. When the pressure sensor 7 senses that the weight of the sampled food has reached the set value, the operation of the electric telescopic rod 3 can be turned off, which makes the automated use of this utility model more convenient.

[0020] In this utility model, the inner liner 2 is provided with a liquid inlet 13, which is fixedly connected to the inner liner 2. The delivery pipe 10 is installed on the lower side of the liquid inlet 13, and the connection between the delivery pipe 10 and the inner liner 2 is strengthened by the liquid inlet 13 on the lower side of the inner liner 2.

[0021] In this utility model, the inner liner 2 is provided with a guide block 14, which is fixedly connected to the inner liner 2 and slidably connected to the outer shell 1 of the device. The movement of the inner liner is made more stable by the guide block 14 on the inner liner 2.

[0022] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0023] In this implementation scheme: When sampling food, the user holds the outer casing 1 of the device and inserts the sampling nozzle 9 into the food. The rubber pad 11 on the outer casing 1 increases the friction when the user holds the outer casing 1, preventing the user's hand from slipping. When the sampling nozzle 9 is inserted into the food, the food itself generates a certain upward force (buoyancy). The upward force on the sampling nozzle 9 is transmitted to the outer casing 1 by the bracket 8. Then, the electric telescopic rod 3 is activated. The electric telescopic rod 3 drives the piston 4 to move inside the inner liner 2, allowing the food to enter the inner liner 2 along the sampling nozzle 9 and the delivery pipe 10. The food entering the inner liner 2 increases the weight of the inner liner 2, causing the inner liner 2 to move downward under a downward force (gravity). The guide block 14 on the inner liner 2 makes the movement of the inner liner more stable. When the inner liner 2 moves downward, it drives the delivery pipe 10 to slide downward inside the sampling nozzle 9, so that the upward force and the downward force are balanced. The forces do not conflict, thus avoiding affecting the measurement of the weight of the sampled food. The stability of the connection between the delivery pipe 10 and the inner liner 2 is enhanced by the liquid inlet 13 on the lower side of the inner liner 2. At the same time, the inner liner 2 moves downward, causing the pressure plate 5 to move downward. The downward movement of the pressure plate 5 compresses the spring 6, and the spring 6 transmits the compressive force to the pressure sensor 7. The transmission of force enables the pressure sensor 7 to sense the weight of the sampled food in the inner liner 2, so that the sampling amount can be displayed to the user more accurately and intuitively. The weight of the sampled food sensed by the pressure sensor 7 can be displayed on the control screen 12 on the outer casing 1 of the device. At the same time, the weight of the food to be sampled can be set in advance. When the pressure sensor 7 senses that the weight of the sampled food has reached the set value, the operation of the electric telescopic rod 3 can be turned off, which makes the automated use of this utility model more convenient.

[0024] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

Claims

1. A precise quantitative food testing sampler, comprising a housing (1), an inner liner (2), an electric telescopic rod (3), a piston (4), a pressure plate (5), a spring (6), a pressure sensor (7), a bracket (8), a sampling nozzle (9), and a delivery pipe (10), characterized in that, The outer shell (1) of the device is slidably connected to the inner liner (2). The electric telescopic rod (3) is located above the outer shell (1) and is fixedly connected to the outer shell (1). The output end of the electric telescopic rod (3) is located inside the inner liner (2) and is fixedly connected to the piston (4). The piston (4) is located inside the inner liner (2) and is slidably connected to the inner liner (2). Each side of the inner liner (2) is fixedly connected to a pressure plate (5). The pressure plate (5) is slidably connected to the outer shell (1). The spring (6) is... The spring (6) is mounted on the pressure plate (5) on one side and on the pressure sensor (7) on the other side. The pressure sensor (7) is located inside the device housing (1) and is fixedly connected to the device housing (1). The bracket (8) is located on the lower side of the device housing (1) and is fixedly connected to the device housing (1). The bracket (8) is fixedly connected to the sampling nozzle (9). One side of the delivery pipe (10) is installed on the lower side of the inner liner (2), and the other side of the delivery pipe (10) is slidably installed inside the sampling nozzle (9).

2. The precise quantitative food detection sampler according to claim 1, characterized in that, The device housing (1) is provided with a rubber pad (11), which surrounds the device housing (1) and is fixedly connected to the device housing (1).

3. The precise quantitative food detection sampler according to claim 1, characterized in that, The device housing (1) is provided with a control screen (12), which is fixedly connected to the device housing (1), electrically connected to the electric telescopic rod (3), and electrically connected to the pressure sensor (7).

4. The precise quantitative food detection sampler according to claim 1, characterized in that, The inner liner (2) is provided with a liquid inlet (13), which is fixedly connected to the inner liner (2), and the delivery pipe (10) is installed on the lower side of the liquid inlet (13).

5. The precise quantitative food detection sampler according to claim 1, characterized in that, The inner liner (2) is provided with a guide block (14), which is fixedly connected to the inner liner (2) and slidably connected to the outer shell (1).

Images