Food and drug quality inspection sampling device

Abstract

The utility model discloses a food and drug quality inspection sampling device which comprises a fixing plate frame, a plurality of sampling probes are vertically and detachably fixed at the bottom of the fixing plate frame, the plurality of sampling probes correspond to different lengths according to sampling layer depths, and the plurality of sampling probes with different lengths are sequentially arranged side by side. A negative pressure cabin and a driving unit used for making a negative pressure environment and returning to a positive pressure environment for the negative pressure cabin are arranged on the inner side of the fixing plate frame, negative pressure generated in the negative pressure cabin can generate negative pressure together with the exhaust pipe, the small sampling bottle and the sampling probe pipe, and liquid in the tank is sucked into the small sampling bottle through the sampling probe pipe. As the position of the exhaust end of the small sampling bottle is higher than the position of the liquid inlet, the exhaust pipe does not suck liquid, and by parity of reasoning, the next sampling probe pipe and the corresponding liquid collection are started, so that the liquid in different layer areas in the storage tank can be quickly and accurately sampled, and the scientificity and preciseness of subsequent inspection are ensured.

Description

Technical Field

[0001] This utility model relates to the field of food and drug sampling and testing technology, specifically a food and drug quality inspection sampling device. Background Technology

[0002] Food and drug quality inspection is a scientific activity that assesses the quality of food and drugs, primarily relying on relevant standards and testing methods to determine whether they meet safety and efficacy requirements. For example, food quality inspection involves using physical and chemical methods to test the components and hygiene indicators of food to ensure compliance with safety standards. This includes testing for nutritional components, contaminant content, and packaging specifications to prevent substandard products from entering the market.

[0003] Currently, food and drug testing sampling is mainly divided into solid, semi-solid slurry, and liquid testing sampling. However, when sampling food and drug raw materials in storage tanks, our staff generally sample randomly. Since storage tanks inevitably experience some stratification during the settling process, the liquid composition in different layers may vary slightly, leading to inaccurate subsequent test results. Moreover, it is inconvenient to stir the storage tank during actual sampling. Therefore, there is a need for a specialized device for testing food and drug raw materials that can perform stratified testing sampling. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] Therefore, the purpose of this utility model is to provide a sampling device for food and drug quality inspection, so as to solve the problems mentioned in the background art, where our staff generally sample randomly when sampling food and drug raw liquids in storage tanks, and the storage tank inevitably produces a certain stratification phenomenon during the standing process, which may result in slight differences in the liquid composition of different layers, leading to inaccurate subsequent test results; and it is also inconvenient to stir the storage tank during actual sampling.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a food and drug quality inspection sampling device, comprising a fixed plate frame, wherein multiple sampling probes are vertically and detachably fixed at the bottom of the fixed plate frame, the multiple sampling probes having different lengths corresponding to the sampling layer depth, the multiple sampling probes of different lengths being arranged in a sequential parallel arrangement, a negative pressure chamber and a drive unit for creating a negative pressure environment and returning to a positive pressure environment in the negative pressure chamber are provided on the inner side of the fixed plate frame, and multiple air extraction connectors corresponding to the sampling probes are fixedly connected to one side of the negative pressure chamber;

[0007] The sampling vials are provided in multiple quantities, corresponding to the number of sampling probes and vacuum connectors. During the sampling process, the upper ends of the sampling vials are respectively inserted into the output end of the sampling probe and the input end of the vacuum connector.

[0008] As a preferred embodiment of the food and drug quality inspection sampling device of this utility model, the air extraction connector includes an air extraction pipe with a horizontal section fixedly connected to the negative pressure chamber and a vertical section inserted into the sampling vial, and an electromagnetic valve disposed at the connection between the air extraction pipe and the negative pressure chamber.

[0009] As a preferred embodiment of the food and drug quality inspection sampling device of this utility model, a liquid guide tube is fixedly connected to one side of the upper part of the sampling probe, and the liquid guide tube, the air extraction tube and the sampling probe are arranged in a straight line.

[0010] As a preferred embodiment of the food and drug quality inspection sampling device of this utility model, the top of the sampling bottle has an exhaust pipe that is inserted into the vertical section of the suction pipe, and the upper side of the sampling bottle has a material delivery pipe that is inserted into the vertical section of the liquid guide pipe.

[0011] As a preferred embodiment of the food and drug quality inspection sampling device of this utility model, a small air pump is fixedly connected to one end of the negative pressure chamber, and a pressure relief valve is provided at the other end of the negative pressure chamber.

[0012] As a preferred embodiment of the food and drug quality inspection sampling device described in this utility model, a control device is also provided on the top of the fixed plate frame.

[0013] As a preferred embodiment of the food and drug quality inspection sampling device of this utility model, a reinforcing rib is fixedly connected between the lower ends of adjacent sampling probes, and the bottom suction end of the sampling probe is also provided with a nipple needle tube.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this food and drug quality inspection sampling device, first hold the sampling device and vertically insert the lower sampling probe into the liquid in the storage tank without stirring. Then, the controller connects the corresponding sampling probe's suction connection and the small air pump. At this time, the negative pressure generated in the negative pressure chamber will cause negative pressure to be generated in the suction pipe, sampling vial, and sampling probe. The sampling probe will then draw the liquid in the tank into the sampling vial. Since the exhaust end of the sampling vial is higher than the inlet, the suction pipe will not draw in liquid. This process is repeated to activate the next sampling probe and the corresponding liquid collection. This allows for rapid and accurate sampling of liquids in different layers of the storage tank, ensuring the scientific rigor and accuracy of subsequent inspections, and has good universality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the detailed structure of the upper part of the device of this utility model;

[0017] Figure 3 This is a schematic diagram of the sampling vial structure of this utility model;

[0018] Figure 4 This is a demonstration diagram of the sampling probe operation of this utility model.

[0019] In the diagram: 100, fixed plate frame; 200, sampling probe; 210, liquid guide tube; 220, reinforcing rib; 300, negative pressure chamber; 310, small air pump; 320, pressure relief valve; 400, air extraction connector; 410, air extraction pipe; 420, solenoid valve; 500, sampling vial; 510, exhaust pipe; 520, material delivery pipe; 600, control device. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0023] Figures 1-4 The diagram shown is a complete structural schematic of a food and drug quality inspection sampling device according to this utility model. Please refer to [link / reference]. Figures 1-4 This embodiment of a food and drug quality inspection sampling device includes a fixed frame 100. Multiple sampling probes 200 are vertically and detachably fixed to the bottom of the fixed frame 100. The multiple sampling probes 200 have different lengths corresponding to the sampling depth, and are arranged sequentially side-by-side. A negative pressure chamber 300 and a drive unit for creating a negative pressure environment and returning to a positive pressure environment in the negative pressure chamber 300 are provided inside the fixed frame 100. Multiple suction connectors 400 corresponding to the sampling probes 200 are fixedly connected to one side of the negative pressure chamber 300. Multiple sampling vials 500 are provided, with the number corresponding to the number of sampling probes 200 and suction connectors 400. During sampling, the upper ends of the sampling vials 500 are respectively inserted and connected to the output end of the sampling probes 200 and the input end of the suction connectors 400.

[0024] The vacuum connection 400 includes a vacuum pipe 410 with a horizontal section fixedly connected to the negative pressure chamber 300 and a vertical section inserted into the sampling vial 500, and a solenoid valve 420 disposed at the junction of the vacuum pipe 410 and the negative pressure chamber 300. A liquid guide pipe 210 is fixedly connected to one side of the upper part of the sampling probe 200, and the liquid guide pipe 210, the vacuum pipe 410, and the sampling probe 200 are arranged in a straight line. Multiple specifications of sampling probe 200 assemblies can be configured according to the actual depth of the storage tank or the actual depth required for sampling, and can be replaced at any time. The top of the sampling vial 500 has an exhaust pipe 510 that inserts into the vertical section of the vacuum pipe 410, and the upper side of the sampling vial 500 has a material delivery pipe 520 that inserts into the vertical section of the liquid guide pipe 210. It is understood that the exhaust pipe 510 and the material delivery pipe 520 can be connected by a Luer connector. In practical applications, multiple sampling vials 500 can also be configured as a large bottle in one chamber, which can be set and matched according to actual needs. One end of the negative pressure chamber 300 is fixedly connected to a small air pump 310, and the other end of the negative pressure chamber 300 is equipped with a pressure relief valve 320. It should be noted that since the inlet and outlet of a normal air pump are in a closed state after it stops, in order to prevent liquid from accumulating inside the sampling probe 200 due to the previous negative pressure state when the device is removed, the pressure relief valve 320 can be opened before removal. This allows outside air to enter, causing the negative pressure chamber 300 and the sampling probe 200 to return to positive pressure, so that the liquid in the sampling probe 200 automatically flows out into the storage tank. Specifically, first hold the sampling device and vertically insert the lower sampling probe 200 into the liquid in the storage tank, avoiding agitation. The system activates the corresponding sampling probe 200, and then the controller connects the suction connector 400 and the small air pump 310. At this time, the negative pressure generated in the negative pressure chamber 300 will cause the suction pipe 410, the sampling vial 500 and the sampling probe 200 to generate negative pressure. The sampling probe 200 will then draw the liquid in the tank into the sampling vial 500. Since the exhaust end of the sampling vial 500 is higher than the inlet, the suction pipe 410 will not draw in liquid. This process is repeated to activate the next sampling probe 200 and the corresponding liquid collection.

[0025] As a further preferred embodiment, a control device 600 is also provided on the top of the fixed plate frame 100. It is understood that the control device 600 includes at least a battery electrically connected to each operating unit and a controller signal connected to each operating unit. Corresponding to the controller are control buttons and a display screen. The testing personnel can use the controller to control and set the operation of devices such as the solenoid valve 420, the small air pump 310, and the pressure relief valve 320. Of course, in practical applications, the control device 600 can also be used in conjunction with a split wire connection or a wireless connection, which will not be described in detail here.

[0026] Furthermore, a reinforcing rib 220 is fixedly connected between the lower ends of adjacent sampling probes 200, and the bottom suction end of the sampling probe 200 also has a nipple needle. It can be understood that the reinforcing rib 220 strengthens the overall rigidity between multiple sampling probes 200. The connection between the sampling probe 200 and the bottom of the fixed plate frame 100 can be threaded, snap-fitted, or other methods, which are not limited. In addition, by providing a fine-diameter nipple needle matching a conventional syringe at the bottom of the sampling probe 200, liquid can be prevented from entering the sampling probe 200 when it is vertically inserted into the storage tank; suction can only be performed through the nipple needle under negative pressure. In other embodiments, a diaphragm valve or a one-way valve can also be provided at the bottom of the sampling probe 200, which is not limited.

[0027] In summary, the sampling device for food and drug quality inspection of this embodiment, when in use, first hold the sampling device and vertically insert the lower sampling probe 200 into the liquid in the storage tank without stirring. Then, the controller connects the corresponding air extraction connector 400 and the small air pump 310 to the sampling probe 200. At this time, the negative pressure generated in the negative pressure chamber 300 will cause negative pressure to be generated in the air extraction pipe 410, the sampling vial 500 and the sampling probe 200. The sampling probe 200 will draw the liquid in the tank into the sampling vial 500. Since the exhaust end of the sampling vial 500 is higher than the liquid inlet, the air extraction pipe 410 will not draw in liquid. This process is repeated to activate the next sampling probe 200 and the corresponding liquid collection. It can quickly and accurately sample the liquid in different layers of the storage tank, ensuring the scientific and rigorous nature of subsequent inspections and has good universality.

[0028] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A sampling device for food and drug quality inspection, characterized in that, The device includes a fixed frame (100), on which multiple sampling probes (200) are vertically and detachably fixed at the bottom. The multiple sampling probes (200) have different lengths corresponding to the sampling depth. The multiple sampling probes (200) of different lengths are arranged in a sequential and parallel manner. A negative pressure chamber (300) and a drive unit for creating a negative pressure environment and returning to a positive pressure environment in the negative pressure chamber (300) are provided on the inner side of the fixed frame (100). Multiple air extraction connectors (400) corresponding to the sampling probes (200) are fixedly connected to one side of the negative pressure chamber (300). Sampling vials (500) are provided in multiple quantities, which are equal to the number of sampling probes (200) and vacuum connectors (400). During the sampling process, the upper end of the sampling vials (500) is inserted into the output end of the sampling probe (200) and the input end of the vacuum connector (400), respectively.

2. The food and drug quality inspection sampling device according to claim 1, characterized in that: The vacuum connector (400) includes a vacuum tube (410) with a horizontal section fixedly connected to the negative pressure chamber (300) and a vertical section inserted into the sampling vial (500), and a solenoid valve (420) disposed at the junction of the vacuum tube (410) and the negative pressure chamber (300).

3. The food and drug quality inspection sampling device according to claim 1, characterized in that: The upper side of the sampling probe (200) is fixedly connected to a liquid guide tube (210), and the liquid guide tube (210), the air extraction tube (410) and the sampling probe (200) are arranged in a straight line.

4. The food and drug quality inspection sampling device according to claim 1, characterized in that: The top of the sampling vial (500) has an exhaust tube (510) that is inserted into the vertical section of the suction tube (410), and the upper side of the sampling vial (500) has a material delivery tube (520) that is inserted into the vertical section of the liquid guide tube (210).

5. The food and drug quality inspection sampling device according to claim 1, characterized in that: One end of the negative pressure chamber (300) is fixedly connected to a small air pump (310), and the other end of the negative pressure chamber (300) is equipped with a pressure relief valve (320).

6. The food and drug quality inspection sampling device according to claim 1, characterized in that: The top of the fixed plate frame (100) is also provided with a control device (600).

7. A food and drug quality inspection sampling device according to claim 1, characterized in that: A reinforcing rib (220) is fixedly connected between the lower ends of adjacent sampling probes (200), and the bottom suction end of the sampling probe (200) also has a nipple needle.

Images