Sample impurity separation device for food detection

Abstract

The utility model provides a sample impurity separation device for food detection, and belongs to the technical field of food detection. Comprising a filter bottle and a Buchner funnel, the Buchner funnel is installed at an upper port of the filter bottle in an inserted mode, the Buchner funnel comprises a funnel barrel, a filtering and separating barrel and a liquid outlet pipe, the filtering and separating barrel is detachably fixed to the upper port of the funnel barrel, a filter plate is arranged at the bottom in the filtering and separating barrel, and the liquid outlet pipe is connected with the filter bottle. The liquid outlet pipe is detachably fixed to a lower end opening of the funnel barrel, a suction filtration pipe is fixed to the side face of the top of the liquid outlet pipe, a suction filtration opening is formed in the side face of the bottom of the liquid outlet pipe, and an independent channel communicated with the suction filtration pipe and the suction filtration opening is formed in the middle of the inner wall of the liquid outlet pipe. The suction filtration device is convenient and thorough to clean, avoids the problem of cross contamination possibly occurring during food sample detection, can be matched with containers of various specifications for suction filtration, and is high in universality.

Description

Technical Field

[0001] This utility model relates to the field of food testing technology, and in particular to a sample impurity separation device for food testing. Background Technology

[0002] In food testing, sample impurity separation is a crucial step that helps improve the accuracy and sensitivity of detection. Vacuum filtration and Buchner funnels are commonly used laboratory tools that play a vital role in sample preparation, especially when separating solid and liquid components. In practical applications, Buchner funnels are often used in conjunction with vacuum filtration devices for extracting crystals or separating solid and liquid mixtures in chemical experiments.

[0003] Currently, when Buchner funnels are used for impurity separation in food testing samples, their generally integrated structure and the semi-closed state between the filter plate and the outlet tube make thorough cleaning difficult, which can easily lead to cross-contamination when testing different food samples.

[0004] Therefore, this application provides a sample impurity separation device for food testing to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem this invention aims to solve is to provide a sample impurity separation device for food testing, addressing the issue that existing Buchner funnels, when used for impurity separation in food testing samples, suffer from cross-contamination due to their generally integrated structure and the semi-closed state between the filter plate and the outlet pipe, which hinders thorough cleaning and makes them prone to thorough cleaning when testing different food samples.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A sample impurity separation device for food testing includes a filter flask and a Buchner funnel. The Buchner funnel is inserted and installed at the upper port of the filter flask. The Buchner funnel includes a funnel body, a filtration separation cylinder, and a liquid outlet pipe. The filtration separation cylinder is detachably fixed to the upper port of the funnel body. A filter plate is provided at the bottom of the filtration separation cylinder. The liquid outlet pipe is detachably fixed to the lower port of the funnel body. A suction filter tube is fixed to the top side of the liquid outlet pipe, and a suction filter port is provided on the bottom side of the liquid outlet pipe. An independent channel connecting the suction filter tube and the suction filter port is opened in the middle of the inner wall of the liquid outlet pipe.

[0008] Optionally, the bottom outer edge of the filter separation cylinder is provided with a first threaded portion, which is threadedly engaged with the inner wall of the upper port of the funnel cylinder.

[0009] Optionally, a first sealing ring is provided around the top of the filter separation cylinder, and the first sealing ring is located between the filter separation cylinder and the funnel cylinder body to form a seal.

[0010] Optionally, the top center of the outlet pipe is provided with an outlet channel, the bottom center of the outlet pipe is provided with an outlet that communicates with the outlet channel, and the top outer edge of the outlet pipe is provided with a second threaded portion, which is threadedly engaged with the inner wall of the lower port of the funnel cylinder.

[0011] Optionally, a second sealing ring is provided around the top of the liquid outlet pipe, and the second sealing ring is located between the liquid outlet pipe and the funnel body to form a seal.

[0012] Optionally, a rubber sleeve is fitted on the port of the filtration tube away from the outlet tube, and a sealing plug is connected to the rubber sleeve and inserted into the port of the filtration tube.

[0013] Optionally, a rubber ring is fixed around the middle of the outlet tube, and the rubber ring is inserted into the upper port of the filter bottle to form a seal.

[0014] Compared with the prior art, this utility model has at least the following beneficial effects:

[0015] In the above solution, thanks to the Buchner funnel formed by the combination and disassembly of the funnel body, filter separation cylinder, and liquid outlet pipe, the Buchner funnel itself is easy to disassemble, which facilitates thorough cleaning of the Buchner funnel. This effectively avoids cross-contamination problems caused by incomplete cleaning of the Buchner funnel when separating impurities from different food samples. Therefore, it can improve the impurity separation effect when continuously used for testing different food samples, and help improve the accuracy of food sample testing.

[0016] In the above scheme, thanks to the suction pipe and suction port set on the side of the liquid outlet pipe, the Buchner funnel can be used to adapt to filter bottles of various specifications, without needing whether the filter bottle itself has a vacuum suction nozzle. Therefore, it can effectively improve the applicability of this device and has strong versatility.

[0017] In summary, this device is not only convenient and thorough to clean, avoiding cross-contamination problems that may occur during food sample testing, but it can also be adapted to containers of various sizes for filtration, making it highly versatile. Attached Figure Description

[0018] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0019] Figure 1This is a schematic diagram of a sample impurity separation device for food testing.

[0020] Figure 2 This is a schematic diagram of the Buchner funnel in a sample impurity separation device for food testing.

[0021] Figure 3 This is a schematic diagram of the filter separation cylinder in a sample impurity separation device for food testing.

[0022] Figure 4 This is a schematic diagram of the liquid outlet tube in a sample impurity separation device for food testing.

[0023] [Figure Labels]

[0024] 1. Filter flask; 2. Buchner funnel; 3. Funnel body; 4. Filtration separation cylinder; 401. Filter plate; 402. First threaded part; 403. First sealing ring; 5. Discharge pipe; 501. Discharge channel; 502. Discharge port; 503. Second threaded part; 504. Second sealing ring; 6. Rubber ring; 7. Vacuum filtration tube; 701. Vacuum filtration port; 8. Rubber sleeve; 801. Sealing plug.

[0025] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0026] The present invention provides a sample impurity separation device for food testing, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0027] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0028] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0029] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0030] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0031] like Figure 1 , Figure 2 As shown, an embodiment of this utility model provides a sample impurity separation device for food testing, including a filter bottle 1 and a Buchner funnel 2. The Buchner funnel 2 is inserted and installed at the upper port of the filter bottle 1. The Buchner funnel 2 includes a funnel body 3, a filtration separation cylinder 4, and a liquid outlet pipe 5. The filtration separation cylinder 4 is detachably fixed to the upper port of the funnel body 3, and a filter plate 401 is provided at the bottom of the filtration separation cylinder 4. (Specific details omitted) Figure 3 As shown, the bottom outer edge of the filter separation cylinder 4 is provided with a first threaded portion 402. The first threaded portion 402 is threadedly engaged with the inner wall of the upper port of the funnel cylinder 3 to detachably install the filter separation cylinder 4 onto the upper port of the funnel cylinder 3. The top of the filter separation cylinder 4 is surrounded by a first sealing ring 403. The first sealing ring 403 is located between the filter separation cylinder 4 and the funnel cylinder 3 to form a seal, thereby ensuring a tight fit between the funnel cylinder 3 and the filter separation cylinder 4 after installation.

[0032] The liquid outlet pipe 5 is detachably fixed to the lower port of the funnel body 3, specifically in conjunction with... Figure 4 As shown, the top center of the outlet pipe 5 is provided with an outlet channel 501, and the bottom center of the outlet pipe 5 is provided with an outlet 502 communicating with the outlet channel 501. The top outer edge of the outlet pipe 5 is constructed with a second threaded portion 503, which is threadedly engaged with the inner wall of the lower port of the funnel body 3 to detachably install the outlet pipe 5 to the lower port of the funnel body 3. The top of the outlet pipe 5 is surrounded by a second sealing ring 504, which is located between the outlet pipe 5 and the funnel body 3 to form a seal, thereby ensuring a tight fit between the outlet pipe 5 and the funnel body 3 after installation.

[0033] In addition, such as Figure 4 As shown, a filtration tube 7 is fixed to the top side of the outlet pipe 5, and a filtration port 701 is provided on the bottom side of the outlet pipe 5. An independent channel connecting the filtration tube 7 and the filtration port 701 is opened in the middle of the inner wall of the outlet pipe 5, so that the Buchner funnel 2 can form a vacuum channel through the arrangement of the filtration tube 7 and the filtration port 701, without the need for the filter bottle 1 itself to be equipped with a vacuum filter nozzle. Therefore, the versatility of this device can be improved. At the same time, a rubber sleeve 8 is fitted on the port of the filtration tube 7 away from the outlet pipe 5. The rubber sleeve 8 is connected to a sealing plug 801. The sealing plug 801 is inserted into the port of the filtration tube 7, so that it can be sealed when the vacuum filter nozzle channel formed by the filtration tube 7 and the filtration port 701 is not needed.

[0034] In this embodiment, a rubber ring 6 is also fixed around the middle of the outlet pipe 5. The rubber ring 6 is inserted into the upper port of the filter bottle 1 to form a seal, so that the filter bottle 1 and the Buchner funnel 2 can be sealed.

[0035] The working principle provided by this utility model is that, in use, the food testing sample impurity separation device can be formed by installing the filter separation cylinder 4 on the top of the funnel body 3 and the liquid outlet pipe 5 on the bottom of the funnel body 3 to form a Buchner funnel 2. Then, a suitable filter cloth can be laid on the filter plate 401 to filter the food sample. The vacuum filtration pipe 7 and the vacuum filtration port 701 set on the liquid outlet pipe 5 are connected to a negative pressure device to perform vacuum filtration operation.

[0036] Meanwhile, when using this device to separate impurities from different food samples, the Buchner funnel 2 can be easily disassembled for thorough cleaning. This effectively avoids cross-contamination caused by incomplete cleaning of the Buchner funnel 2 when separating impurities from different food samples. Therefore, it can improve the impurity separation effect when continuously testing different food samples, and help improve the accuracy of food sample testing.

[0037] In addition, the suction filter tube 7 and suction filter port 701 provided on the side of the liquid outlet tube 5 make the Buchner funnel 2 suitable for various sizes of filter bottles 1, without the need for the filter bottle 1 itself to have a vacuum suction nozzle. Therefore, the applicability of this device can be effectively improved and its versatility is strong.

[0038] In summary, this device is not only convenient and thorough to clean, avoiding cross-contamination problems that may occur during food sample testing, but it can also be adapted to containers of various sizes for filtration, making it highly versatile.

[0039] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A sample impurity separation device for food detection, comprising a filter bottle (1) and a Buchner funnel (2), the Buchner funnel (2) being inserted and installed at the upper port of the filter bottle (1), characterized in that, The Buchner funnel (2) comprises a funnel barrel (3), a filter separation cylinder (4) and a liquid outlet pipe (5), the filter separation cylinder (4) is detachably fixed to the upper port of the funnel barrel (3), the filter separation cylinder (4) is provided with a filter plate (401) on the inner bottom, the liquid outlet pipe (5) is detachably fixed to the lower port of the funnel barrel (3), the top side of the liquid outlet pipe (5) is fixed with a suction filter pipe (7), the bottom side of the liquid outlet pipe (5) is provided with a suction filter port (701), and the inner wall of the liquid outlet pipe (5) is provided with an independent channel communicating the suction filter pipe (7) and the suction filter port (701).

2. The sample impurity separation device for food inspection according to claim 1, characterized by, The bottom outer edge surface of the filter separation cylinder (4) is provided with a first threaded portion (402), and the first threaded portion (402) is threadedly matched with the inner wall of the upper port of the funnel barrel (3).

3. The sample impurity separation device for food inspection according to claim 2, characterized by, The top of the filter separation cylinder (4) is surrounded by a first sealing rubber ring (403), and the first sealing rubber ring (403) is located between the filter separation cylinder (4) and the funnel barrel (3) to form a seal.

4. The sample impurity separation device for food inspection according to claim 1, characterized by, The top end of the liquid outlet pipe (5) is provided with a liquid outlet channel (501), the bottom end of the liquid outlet pipe (5) is provided with a liquid outlet port (502) in communication with the liquid outlet channel (501), and the top outer edge surface of the liquid outlet pipe (5) is provided with a second threaded portion (503), and the second threaded portion (503) is threadedly matched with the inner wall of the lower port of the funnel barrel (3).

5. The sample impurity separation device for food inspection according to claim 4, characterized by, The top of the liquid outlet pipe (5) is surrounded by a second sealing rubber ring (504), and the second sealing rubber ring (504) is located between the liquid outlet pipe (5) and the funnel barrel (3) to form a seal.

6. The sample impurity separation device for food inspection according to claim 1, characterized by, The suction filter pipe (7) is provided with a rubber sleeve (8) on the port away from the liquid outlet pipe (5), the rubber sleeve (8) is connected with a sealing plug (801), and the sealing plug (801) is inserted into the port of the suction filter pipe (7).

7. The sample impurity separation device for food inspection according to claim 1, characterized by, The middle of the liquid outlet pipe (5) is surrounded by a rubber ring (6), and the rubber ring (6) is inserted into the upper port of the filter bottle (1) to form a seal.

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