Pressurizing and film-passing device for selenium form extracting agent of selenium-rich edible mushrooms

Abstract

The utility model discloses a pressurizing and film-passing device for selenium form extractant of selenium-rich edible fungi, which comprises a rack and a pressing mechanism arranged at the top of the rack, the pressing mechanism comprises an electric push rod connected with the rack, and a telescopic rod of the electric push rod is connected with a pressing plate. A centrifuge tube support for placing a plurality of centrifuge tubes is arranged at the bottom of the rack, an injector support for placing a plurality of injectors is arranged in the middle of the rack, the lower ends of the injectors are connected with microporous filters vertically corresponding to the centrifuge tubes, and piston rods at the upper ends of the injectors vertically correspond to the pressing plates. According to the technical scheme, a plurality of centrifugal tubes can be placed on the centrifugal tube support at the same time, a plurality of injectors vertically opposite to the centrifugal tubes can be placed on the injector support at the same time, the pressing mechanism can press the injectors downwards at the same time, the filter pressing efficiency is improved by times, and the filter pressing efficiency is improved by times. And manual pushing is not needed in the filter pressing process, so that labor-saving operation is realized.

Description

Technical Field

[0001] This utility model relates to the field of slicing machine technology, and in particular to a pressurized membrane device for extracting selenium speciation from selenium-enriched edible fungi. Background Technology

[0002] Edible fungi have high medicinal and edible value and strong selenium enrichment capacity. The edible fungi industry is a non-arable land production, agricultural waste recycling, high economic benefit, large market potential, and a resource-saving and environmentally friendly industry.

[0003] Selenium exists primarily in organic forms (such as selenomethionine, selenocysteine, and methylselenocysteine) and inorganic forms (tetravalent and hexavalent selenium). Compared to inorganic selenium, organic selenium is more easily absorbed and utilized by the human body, exhibiting higher bioavailability. Therefore, the extraction of selenium forms is crucial for the development of functional foods. However, chromatographic columns, liquid chromatographs, and coupled liquid chromatography with atomic fluorescence spectrometry are very expensive. Therefore, liquid chromatography requires membrane filtration before processing. Edible fungi contain a large amount of macromolecules and viscous substances such as crude polysaccharides, making membrane filtration extremely difficult.

[0004] A search revealed that Chinese utility model patent CN 213101629 U, with an authorization announcement date of May 4, 2021, discloses an "Auxiliary Pressure Filtration Device for a Microporous Membrane Filter," comprising a pressure device and a filtration device. The pressure device includes a horizontal upper fixed plate with support legs connected to its edge. Two grooves are formed on the upper fixed plate, and vertical pull rods pass through the grooves. A pressure rod is hinged to the top of the pull rod, and a support arm connects the pressure rod to the upper fixed plate. A horizontal movable plate is connected between the bottom ends of the two pull rods, and a conical hole is formed in the center of the movable plate. The filtration device includes a vertically arranged syringe. The top of the syringe piston rod abuts against the lower surface of the upper fixed plate, and the lower end of the syringe is engaged in the conical hole of the movable plate. A microporous filter and a needle are connected to the lower end of the syringe, and a container is placed directly below the needle.

[0005] The aforementioned auxiliary pressure filtration device constructs a linkage mechanism by setting up a pressure rod, a pull rod, and a movable plate. The pressure rod in the linkage mechanism is hinged to the support arm to form a lever mechanism. By squeezing the piston rod of the syringe through the lever mechanism, labor-saving operation can be achieved. Compared with manually pushing the syringe directly, it shortens the time for compressing the piston rod and speeds up the filtration speed of the liquid.

[0006] However, the following problems still exist: First, the preparation process is cumbersome. Before operating the plunger, the syringe needs to be positioned between the upper fixed plate and the movable plate. This positioning operation requires both hands to support the syringe and the plunger, or two people to work together. The syringe tip can only be connected to the microfiltration filter after passing through the conical hole of the movable plate. Second, it is difficult to ensure stable positioning of the syringe when operating alone. One hand needs to hold the syringe and the other hand needs to slightly press down the plunger to position the syringe through the clamping action of the upper fixed plate and the movable plate. However, operating a single plunger will cause the movable plate to tilt, making it impossible to reliably position the syringe. Third, although the compression time of the piston rod is shortened, the overall efficiency of the entire process is low when the preparation work is added. Compared with manually pushing the syringe directly, the filtration efficiency is not improved.

[0007] It should be noted that the above technical information is intended only to enhance the understanding of the overall background technology of this utility model, and should not be regarded as an admission or in any form an implication that the above technical information constitutes prior art known to those skilled in the art. Utility Model Content

[0008] To address the shortcomings in the aforementioned background technology, this utility model proposes a pressurized membrane filtration device for extracting selenium forms from selenium-enriched edible fungi. The technical problem to be solved is: how to achieve efficient pressure filtration of selenium forms from selenium-enriched edible fungi.

[0009] The technical solution of this application is as follows:

[0010] A pressure filtration device for extracting selenium speciation from selenium-enriched edible fungi includes a frame and a pressing mechanism mounted on top of the frame. The pressing mechanism includes an electric push rod connected to the frame, with a pressure plate connected to the extension rod of the electric push rod. The bottom of the frame has a centrifuge tube holder for holding several centrifuge tubes, and the middle has a syringe holder for holding several syringes. The lower end of each syringe is connected to a microporous filter corresponding to the centrifuge tubes, and the upper end of each syringe has a piston rod corresponding to the pressure plate. This technical solution provides a semi-automatic pressure filtration device. The centrifuge tube holder can hold multiple centrifuge tubes simultaneously, the syringe holder can hold multiple syringes corresponding to the centrifuge tubes simultaneously, and the pressing mechanism can press down on each syringe simultaneously, thus significantly improving the pressure filtration efficiency. Furthermore, since the pressing mechanism is driven by an electric push rod, the pressure filtration process does not require manual operation, achieving labor-saving operation. In addition, the centrifuge tube holder and syringe holder, specifically designed for positioning centrifuge tubes and syringes respectively, allow a single person to operate multiple syringes simultaneously, further improving the convenience and efficiency of the pressure filtration operation.

[0011] Based on the above technical solutions, in a preferred embodiment of the pressurized membrane extraction device for selenium speciation extraction of selenium-enriched edible fungi, the centrifuge tube support and syringe support are both detachably connected to the frame. This technical solution can further improve the convenience and efficiency of the pressure filtration operation. Since the centrifuge tube support and syringe support are detachably connected to the frame, when placing or removing centrifuge tubes or syringes, the centrifuge tube support and syringe support can be removed from the frame first, making it more convenient to place and remove them, and indirectly shortening the time of the entire pressure filtration process.

[0012] Based on the above technical solutions, a preferred technical solution for a pressurized membrane extraction device for selenium speciation extraction of selenium-enriched edible fungi includes paired horizontal sliding grooves on the left and right side walls of the frame, and supporting flanges adapted to the horizontal sliding grooves on both sides of the centrifuge tube support. This technical solution provides a preferred disassembly structure for the centrifuge tube support, namely, by the mutual cooperation between the horizontal sliding grooves and the supporting flanges, convenient disassembly and assembly of the centrifuge tube support and the frame can be achieved, further improving the ease of disassembly and assembly.

[0013] Based on the above technical solutions, in a preferred embodiment of the pressurized membrane extraction device for selenium speciation extraction of selenium-enriched edible fungi, at least two horizontal chutes are arranged at intervals along the height direction of the frame, and the positions and numbers of the support flanges on both sides of the centrifuge tube support are adapted to the horizontal chutes. This technical solution provides a structural method to improve the reliability of the connection between the centrifuge tube support and the frame. Preferably, four horizontal chutes and four support flanges are provided. In one horizontal plane, there is a pair of cooperating horizontal chutes and support flanges on the left and right sides respectively, and in another horizontal plane, there are two other pairs of cooperating horizontal chutes and support flanges on the left and right sides.

[0014] Based on the above technical solutions, in a preferred embodiment of the pressurized membrane extraction device for selenium speciation extraction of selenium-enriched edible fungi, the left and right side walls of the frame are provided with paired horizontal sliding grooves, and the sides of the syringe holder are provided with supporting flanges adapted to the horizontal sliding grooves. This technical solution provides a preferred disassembly structure for the syringe holder, that is, by means of the mutual cooperation between the horizontal sliding grooves and the supporting flanges, the syringe holder and the frame can be easily disassembled and assembled, further improving the convenience of disassembly and assembly.

[0015] Based on the above technical solution, in a preferred embodiment of the pressurized membrane device for extracting selenium speciation from selenium-enriched edible fungi, at least two horizontal swivels are arranged at intervals along the height direction of the frame, and the positions and numbers of the support flanges on both sides of the syringe holder are adapted to the horizontal swivels. This technical solution provides a structural method to improve the reliability of the connection between the syringe holder and the frame. Preferably, four horizontal swivels and four support flanges are provided. In one horizontal plane, there is a pair of cooperating horizontal swivels and support flanges on the left and right sides respectively, and in another horizontal plane, there are two other pairs of cooperating horizontal swivels and support flanges on the left and right sides.

[0016] Based on the above technical solutions, a preferred technical solution for a pressurized membrane device for extracting selenium speciation from selenium-enriched edible fungi includes at least two guide sleeves parallel to the axis of the telescopic rod at the top of the frame, and a guide rod adapted to the guide sleeves vertically connected to the top of the pressure plate. This technical solution improves the reliability of the pressing mechanism's pressing process. Since there is only one electric push rod, while there are several syringes below, the projected area of ​​the pressure plate is much larger than the cross-sectional area of ​​the telescopic rod. Therefore, setting at least two cooperating guide sleeves and guide rods can improve the stability of the pressure plate's pressing process, thereby fully ensuring the synchronicity of pressing down each syringe.

[0017] Based on the above technical solutions, as a preferred technical solution for a pressurized membrane device for extracting selenium speciation from selenium-enriched edible fungi, the centrifuge tube support includes two columns and two rows of centrifuge tube placement chambers, and the syringe support is provided with syringe placement chambers that are equal in number to the number of centrifuge tube placement chambers and are positioned vertically opposite each other.

[0018] Based on the above technical solutions, as a preferred technical solution for a pressurized membrane device for extracting selenium forms from selenium-enriched edible fungi, the side wall of the syringe placement cavity is provided with a side wall opening for the syringe barrel to enter horizontally, and the bottom wall of the syringe placement cavity is provided with a bottom wall opening for the syringe nozzle to enter horizontally.

[0019] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0020] This invention provides a pressure filtration device for extracting selenium speciation from selenium-enriched edible fungi, specifically a semi-automatic pressure filtration device. The device includes a centrifuge tube holder that can simultaneously hold multiple centrifuge tubes, a syringe holder that can simultaneously hold multiple syringes positioned vertically opposite the centrifuge tubes, and a pressing mechanism that can simultaneously press down on each syringe, thus significantly increasing the filtration efficiency. Furthermore, since the pressing mechanism is driven by an electric push rod, the filtration process requires no manual operation, achieving labor-saving operation. Additionally, the inclusion of a centrifuge tube holder specifically for positioning the centrifuge tubes and a syringe holder specifically for positioning the syringes allows for simultaneous operation of multiple syringes by a single person, further improving the convenience and efficiency of the filtration process. Attached Figure Description

[0021] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the main structure of a pressurized membrane device for extracting selenium speciation from selenium-enriched edible fungi.

[0023] Figure 2 for Figure 1 Top view;

[0024] Figure 3 for Figure 1 Top view of the centrifuge tube support;

[0025] Figure 4 for Figure 1 Top view of the syringe holder.

[0026] Explanation of icon numbers:

[0027] Frame 1, Horizontal slide rail 1-1, Horizontal slide rail 2-1-2, Guide sleeve 1-3;

[0028] Pressing mechanism 2, electric push rod 2-1, telescopic rod 2-2, pressure plate 2-3, guide rod 2-4;

[0029] Centrifuge tube support 3, support flange 3-1, centrifuge tube placement cavity 3-3;

[0030] Syringe holder 4, syringe placement cavity 4-1, side wall opening 4-1-1, bottom wall opening 4-1-2, support flange 2 4-2, bottom wall 4-3, side wall 4-4;

[0031] Syringe 5, piston rod 5-1, dispensing nozzle 5-2;

[0032] Centrifuge tube 6;

[0033] Microporous filter 7. Detailed Implementation

[0034] 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 core concept of the present utility model and the following embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0035] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0036] It should be noted that, in the description of this application, unless otherwise stated, "several" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "axial," "radial," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not 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 on this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0038] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0039] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0040] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0041] A pressurized membrane-passing device for extracting selenium speciation from selenium-enriched edible fungi, such as... Figure 1 and Figure 2 As shown, it includes a frame 1 and a pressing mechanism 2 installed on top of the frame 1. The frame 1 serves as the support structure for the entire device, while the pressing mechanism 2 is the power unit for the filter press operation, used to replace manual filter press operation.

[0042] Specifically, the pressing mechanism 2 includes an electric push rod 2-1 connected to the frame 1. The telescopic rod 2-2 of the electric push rod 2-1 is connected to a pressure plate 2-3. The pressure plate 2-3 moves downward or retracts upward under the drive of the electric push rod 2-1. It should be noted that the model and control method of the electric push rod 2-1 are existing technologies. The inventive contribution of this embodiment is simply applying the existing electric push rod 2-1 to the pressing mechanism 2, fixing the cylinder end of the electric push rod 2-1 to the frame 1, so that the telescopic rod 2-2 of the electric push rod 2-1 can extend and retract relative to the frame 1. As for the specific method of fixing the electric push rod 2-1 relative to the frame 1, those skilled in the art can choose suitable existing technologies, which will not be elaborated in this embodiment. For example, it can be connected by screws, welding, or clamps, etc.

[0043] The frame 1 has a centrifuge tube support 3 at its bottom for holding several centrifuge tubes 6, and a syringe support 4 in its middle for holding several syringes 5. The lower end of each syringe 5 is connected to a microporous filter 7 corresponding vertically to the centrifuge tubes 6, and the upper end of each syringe 5 has a piston rod 5-1 corresponding vertically to the pressure plate 2-1. Specifically, the centrifuge tube support 3 is used to house and position the centrifuge tubes 6, and the syringe support 4 is used to house and position the syringes 5. The centrifuge tube support 3 is located at the bottom of the frame 1, and the syringe support 4 is located in the middle of the frame 1, between the centrifuge tube support 3 and the pressure plate 2-3. When the pressure plate 2-3 moves downward under the action of the electric push rod 2-1, it can squeeze the piston rod 5-1 of the syringe 5, thereby expelling the selenium-enriched edible fungus selenium extract from the syringe 5-1, which then passes through the microporous filter 7 and finally enters the centrifuge tubes 6. It should be noted that the microporous filter 7 in this embodiment is prior art and is the same as the microporous filter 7 in the prior art cited in the background section.

[0044] In summary, this embodiment provides a semi-automatic pressurized membrane device. The centrifuge tube support 3 can simultaneously hold multiple centrifuge tubes 6, the syringe support 4 can simultaneously hold multiple syringes 5 that are vertically opposite to the centrifuge tubes 6, and the pressing mechanism 2 can simultaneously press down each syringe, thus significantly improving the pressure filtration efficiency. Furthermore, since the pressing mechanism 2 is driven by an electric push rod 2-1, the pressure filtration process does not require manual operation, achieving labor-saving operation. In addition, the centrifuge tube support 3 specifically for positioning the centrifuge tubes 6 and the syringe support 4 specifically for positioning the syringes 5 allow a single person to operate multiple syringes simultaneously, further improving the convenience and efficiency of the pressure filtration operation.

[0045] Based on the above embodiments, in a preferred embodiment of the pressurized membrane device for extracting selenium speciation from selenium-enriched edible fungi, the centrifuge tube support 3 and the syringe support 4 are both detachably connected to the frame 1. This embodiment further improves the convenience and efficiency of the pressure filtration operation. Since the centrifuge tube support 3 and the syringe support 4 are detachably connected to the frame 1, when placing or removing the centrifuge tubes 6 and syringes 5, the centrifuge tube support 3 and the syringe support 4 can be removed from the frame 1 first, making it more convenient to place and remove them, and indirectly shortening the time of the entire pressure filtration process.

[0046] Based on the above embodiments, in a preferred embodiment of the pressurized membrane device for extracting selenium speciation from selenium-enriched edible fungi, the left and right side walls 4-4 of the frame 1 are provided with paired horizontal sliding grooves 1-1, and the centrifuge tube support 3 has supporting flanges 3-1 on both sides that are adapted to the horizontal sliding grooves 1-1. This embodiment provides a preferred disassembly structure for the centrifuge tube support 3, that is, by means of the mutual cooperation between the horizontal sliding grooves 1-1 and the supporting flanges 3-1, the centrifuge tube support 3 and the frame 1 can be easily disassembled and assembled, further improving the convenience of disassembly and assembly.

[0047] Based on the above embodiments, in a preferred embodiment of the pressurized membrane device for extracting selenium speciation from selenium-enriched edible fungi, at least two horizontal chute-1-1s are arranged at intervals along the height direction of the frame 1, and the positions and numbers of the support flanges-3-1 on both sides of the centrifuge tube support 3 are adapted to the horizontal chute-1-1s. This embodiment provides a structural method to improve the reliability of the connection between the centrifuge tube support 3 and the frame 1. Preferably, four horizontal chute-1-1s and four support flanges-3-1s are provided. In one horizontal plane, there is a pair of mutually cooperating horizontal chute-1-1s and support flanges-3-1s on the left and right sides respectively, and in another horizontal plane, there are two other pairs of mutually cooperating horizontal chute-1-1s and support flanges-3-1s on the left and right sides.

[0048] Based on the above embodiments, in a preferred embodiment of the pressurized membrane device for extracting selenium speciation from selenium-enriched edible fungi, the left and right side walls 4-4 of the frame 1 are provided with paired horizontal sliding grooves 1-2, and the sides of the syringe holder 4 are provided with supporting flanges 4-2 adapted to the horizontal sliding grooves 1-2. This embodiment provides a preferred disassembly structure for the syringe holder 4, that is, by means of the mutual cooperation between the horizontal sliding grooves 1-2 and the supporting flanges 4-2, the syringe holder 4 and the frame 1 can be easily disassembled and assembled, further improving the convenience of disassembly and assembly.

[0049] Based on the above embodiments, in a preferred embodiment of the pressurized membrane device for extracting selenium speciation from selenium-enriched edible fungi, at least two horizontal swivels 1-2 are arranged at intervals along the height direction of the frame 1, and the positions and numbers of the support flanges 4-2 on both sides of the syringe holder 4 are adapted to the horizontal swivels 1-2. This embodiment provides a structural method to improve the reliability of the connection between the syringe holder 4 and the frame 1. Preferably, four horizontal swivels 1-2 and four support flanges 4-2 are provided. In one horizontal plane, there is a pair of mutually cooperating horizontal swivels 1-2 and support flanges 4-2 on the left and right sides respectively, and in another horizontal plane, there are two other pairs of mutually cooperating horizontal swivels 1-2 and support flanges 4-2 on the left and right sides respectively.

[0050] Based on the above embodiments, in a preferred embodiment of the pressurized membrane device for extracting selenium speciation from selenium-enriched edible fungi, the top of the frame 1 is provided with at least two guide sleeves 1-3 parallel to the axis of the telescopic rod 2-2, and the top of the pressure plate 2-1 is vertically connected with a guide rod 2-4 adapted to the guide sleeves 1-3. This embodiment improves the reliability of the pressing process of the pressing mechanism 2. Since there is only one electric push rod 2-1, while there are several syringes 5 below, the projected area of ​​the pressure plate 2-3 is much larger than the cross-sectional area of ​​the telescopic rod 2-2. Therefore, providing at least two cooperating guide sleeves 1-3 and guide rods 2-4 can improve the stability of the pressing process of the pressure plate 2-3, thereby fully ensuring the synchronicity of pressing down each syringe 5.

[0051] Based on the above embodiments, a preferred embodiment of the pressurized membrane-passing device for extracting selenium speciation from selenium-enriched edible fungi is as follows: Figure 1 and Figure 3 As shown, the centrifuge tube support 3 includes two rows and two columns of centrifuge tube placement chambers 3-3. The syringe support 4 is provided with syringe placement chambers 4-1, which are equal in number to the centrifuge tube placement chambers 3-3 and are positioned vertically opposite each other. It should be noted that the centrifuge tube placement chamber 3-3 includes a bottom wall 4-3 and a side wall 4-4, and the whole is a groove-shaped structure with an opening at the top. Its shape is the same as that of the test tube support in the prior art, and will not be described again in this embodiment. The syringe placement chamber 4-1 is a structural design that does not exist in the prior art. It includes an elastic side wall 4-4 that fits against the outer wall of the syringe barrel 5-1 of the syringe 5, and a bottom wall 4-3 that supports the bottom of the syringe barrel 5-1. The bottom wall has a through hole for the dispensing nozzle 5-2 to pass through.

[0052] Based on the above embodiments, a preferred embodiment of the pressurized membrane-passing device for extracting selenium speciation from selenium-enriched edible fungi is as follows: Figure 1 and Figure 4 As shown, the side wall 4-4 of the syringe placement cavity 4-1 has a side wall opening 4-1-1 for the syringe 5 syringe barrel 5-1 to enter horizontally. The elastic side wall 4-4 is not an elastic structure throughout. Instead, the bottom of the side wall 4-4 near the side wall opening 4-1-1 is not fixedly connected to the bottom wall 4-3, and the side wall opening 4-1-1 faces the side without the bottom wall 4-3.

[0053] The bottom wall 4-3 of the syringe placement cavity 4-1 has an opening 4-1-2 for the syringe 5's nozzle 5-2 to horizontally enter the through hole. The side wall opening 4-1-1 and the bottom wall opening 4-1-2 allow for horizontal assembly and disassembly of the syringe 5 without axial disassembly. Therefore, the microporous filter 7 can be connected to the nozzle 5-2 of the syringe 5 before the syringe 5 is inserted into the syringe placement cavity 4-1; or the syringe 5 can be inserted into the syringe placement cavity 4-1 first, and then the microporous filter 7 can be installed. During the removal of the syringe 5, the syringe 5 and its connected microporous filter 7 can be removed together horizontally.

[0054] It should be noted that the above embodiments are merely a detailed introduction to the inventive concept of this application. The specific materials, shapes, sizes, and processing and assembly methods of each component are existing technologies known to those skilled in the art. Those skilled in the art can choose various methods suitable for practical use according to actual needs.

[0055] The above content shows and describes the basic principles, main features, and beneficial effects of this utility model. The above description is merely a preferred embodiment of this utility model and is not intended to limit it. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pressurized membrane device for extracting selenium forms from selenium-enriched edible fungi, comprising a frame (1) and a pressing mechanism (2) disposed on the top of the frame (1), characterized in that: The pressing mechanism (2) includes an electric push rod (2-1) connected to the frame (1). The telescopic rod (2-2) of the electric push rod (2-1) is connected to a pressure plate (2-3). The bottom of the frame (1) is provided with a centrifuge tube support (3) for placing several centrifuge tubes (6), and the middle is provided with a syringe support (4) for placing several syringes (5). The lower end of the syringe (5) is connected to a microporous filter (7) corresponding to the centrifuge tubes (6) vertically, and the upper piston rod (5-1) corresponds vertically to the pressure plate (2-3).

2. The pressurized membrane-passing device for extracting selenium speciation from selenium-enriched edible fungi according to claim 1, characterized in that: The centrifuge tube support (3) and syringe support (4) are detachably connected to the frame (1).

3. The pressurized membrane device for extracting selenium speciation from selenium-enriched edible fungi according to claim 2, characterized in that: The frame (1) has a pair of horizontal sliding grooves (1-1) arranged on its left and right side walls (4-4), and the centrifuge tube support (3) has a support flange (3-1) on both sides that is adapted to the horizontal sliding grooves (1-1).

4. The pressurized membrane-passing device for extracting selenium speciation from selenium-enriched edible fungi according to claim 3, characterized in that: At least two horizontal chute 1 (1-1) are arranged at intervals along the height direction of the frame (1), and the position and number of the support flange 1 (3-1) on both sides of the centrifuge tube support (3) are adapted to the horizontal chute 1 (1-1).

5. The pressurized membrane apparatus for extracting selenium speciation from selenium-enriched edible fungi according to any one of claims 2-4, characterized in that: The frame (1) has a pair of horizontal sliding grooves (1-2) arranged on its left and right side walls (4-4), and the syringe bracket (4) has support flanges (4-2) on both sides that are adapted to the horizontal sliding grooves (1-2).

6. The pressurized membrane-passing device for extracting selenium speciation from selenium-enriched edible fungi according to claim 5, characterized in that: At least two horizontal slides (1-2) are arranged at intervals along the height direction of the frame (1), and the positions and number of the support flanges (4-2) on both sides of the syringe bracket (4) are adapted to the horizontal slides (1-2).

7. The pressurized membrane apparatus for extracting selenium speciation from selenium-enriched edible fungi according to any one of claims 1-4 and 6, characterized in that: The top of the frame (1) is provided with at least two guide sleeves (1-3) parallel to the axis of the telescopic rod (2-2), and the top of the pressure plate (2-3) is vertically connected with a guide rod (2-4) adapted to the guide sleeve (1-3).

8. The pressurized membrane-passing device for extracting selenium speciation from selenium-enriched edible fungi according to claim 7, characterized in that: The centrifuge tube support (3) includes two columns and two rows of centrifuge tube placement chambers (3-3), and the syringe support (4) is provided with syringe placement chambers (4-1) in the same number as the centrifuge tube placement chambers (3-3) and in opposite positions.

9. The pressurized membrane-passing device for extracting selenium speciation from selenium-enriched edible fungi according to claim 8, characterized in that: The side wall (4-4) of the syringe placement cavity (4-1) is provided with a side wall opening (4-1-1) for the syringe (5) to enter horizontally, and the bottom wall (4-3) of the syringe placement cavity (4-1) is provided with a bottom wall opening (4-1-2) for the syringe (5) to enter horizontally.

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