Food and traditional Chinese medicine pretreatment filtering device

Abstract

The utility model provides a kind of food and traditional chinese medicine pretreatment filtering device, comprising: support frame, according to need setting in use ground;Filter hopper, be set on support frame by several swing arms;And several filter layers are provided in filter hopper;Driving device, set on support frame;The rotation axis of driving wheel is arranged on support frame, and driving device is rotatably connected between driving wheel;For indirectly to the driving body that contact and push filter hopper and swing filter hopper on support frame, set on rotation axis, and adjacent to filter hopper;The raw material of food and traditional chinese medicine pretreatment filtering device proposed in the utility model can ensure that raw material evenly conveyed process carries out classification filtering, and then ensure the accuracy of subsequent inspection while ensuring filtering effect.

Description

Technical Field

[0001] This utility model relates to the field of food and traditional Chinese medicine processing equipment technology, and in particular to a food and traditional Chinese medicine pretreatment filtration device. Background Technology

[0002] In the fields of food processing and traditional Chinese medicine preparation, the filtration stage in the pretreatment phase is not only a core process to ensure product quality and safety, but also directly determines the accuracy of subsequent quality inspection results. Food safety is determined by tests such as pesticide residue testing and heavy metal content determination, while traditional Chinese medicine is determined by tests for the content of effective components (such as alkaloids and flavonoids) and screening for harmful residues (such as heavy metals and microorganisms) to ensure efficacy and medication safety. Impurities carried in raw materials, such as mud, broken particles, and plant residues in food, and dregs, dust, and metal particles in traditional Chinese medicine, can directly interfere with the testing process. Fine particles may clog the pipelines of testing instruments, such as the injection valve of a high-performance liquid chromatograph. Residual impurities may react non-specifically with testing reagents, or cause the actual content of the sample to deviate from the true value during weighing and extraction, ultimately resulting in inaccurate test results or even misjudgments, such as judging qualified food as having excessive pesticide residues or underestimating the content of effective components in traditional Chinese medicine.

[0003] In the existing technology, the pretreatment filtration devices commonly used in the food and traditional Chinese medicine processing fields have limited volume and need to be filtered in batches. This not only leads to long filtration cycles and low efficiency, but also makes the filtration accuracy between batches susceptible to the influence of manual operation. For example, the vibration frequency of the screen is unstable, and some fine particulate impurities are difficult to remove completely. The residues directly affect the purity of subsequent test samples.

[0004] Especially for large-volume granular raw materials, such as wheat and corn in the food industry, and astragalus granules and angelica slices in the traditional Chinese medicine industry, the problems of incomplete filtration and low efficiency of existing equipment are more prominent. On the one hand, the amount of residual impurities accumulates with the increase of the processing volume, and the interference effect during testing is amplified. On the other hand, batch filtration leads to differences in the impurity content of different batches of raw materials, resulting in inconsistent subsequent test results and making it difficult to objectively reflect the overall quality level of the raw materials. Therefore, there is an urgent need for a pretreatment filtration device that can achieve efficient and thorough filtration and is adapted to the needs of subsequent testing to solve the core problem of impurities interfering with test results. Utility Model Content

[0005] The purpose of this utility model is to provide a food and traditional Chinese medicine pretreatment filtration device that can solve the above-mentioned technical problems.

[0006] This utility model provides a food and traditional Chinese medicine pretreatment filtration device, comprising:

[0007] Support frames are installed at the site of use as needed;

[0008] The filter bucket is mounted on a support frame via several swing arms; and several filter layers are provided inside the filter bucket for filtering impurities in the raw material.

[0009] The drive unit is mounted on the support frame;

[0010] The drive wheel's rotation shaft passes through the support frame, and the drive unit is rotatably connected to the drive wheel;

[0011] The drive unit, which indirectly contacts the filter bucket and pushes the filter bucket to swing on the support frame, is mounted on the rotating shaft and is arranged adjacent to the filter bucket.

[0012] As a further technical solution, it also includes:

[0013] Several limiting devices for resetting the filter bucket after being pushed by the drive body are provided between the support frame and the filter bucket.

[0014] As a further technical solution, several filter layers include:

[0015] First filter element and second filter element;

[0016] The first filter element is disposed on the side walls of both sides of the filter bucket; the second filter element is disposed on the side walls of both sides of the filter bucket, and the second filter element is positioned below the first filter element.

[0017] The filter bucket is divided into a first filtration space, a second filtration space, and an impurity space by the first and second filter bodies.

[0018] As a further technical solution, the first filter element includes:

[0019] The support frame is fixedly connected to the side walls on both sides of the filter bucket;

[0020] The filter screen is fixed to the support frame.

[0021] As a further technical solution, it also includes:

[0022] A baffle for blocking the first filtration space is provided on the filter hopper; and a first discharge port is provided on the baffle.

[0023] The second discharge port, used to discharge the filtered material from the second filtration space, is set on the filter hopper and is connected to the second filtration space.

[0024] The third discharge port, used to discharge impurities from the impurity space, is located on the filter hopper and is connected to the impurity space.

[0025] As a further technical solution, one end of the swing arm is pinned to the support frame, and the other end is pinned to the filter bucket.

[0026] As a further technical solution, the support frame includes an inclined beam, and several swing arms are arranged on the inclined beam to make the filter bucket tilted.

[0027] As a further technical solution, the driving body includes:

[0028] The first fixing plate and the second fixing plate are arranged opposite to each other on the rotating shaft.

[0029] Several drive blocks are arranged between the first fixed plate and the second fixed plate via several connecting shafts.

[0030] As a further technical solution, several drive blocks are equally spaced between the first fixed plate and the second fixed plate.

[0031] Preferably, the drive block has a ring structure and is capable of rotating about the connecting shaft.

[0032] The technical solution of this utility model forms a graded filtration structure by setting several filtration layers in the filter bucket, which can remove impurities with a particle size larger than the target material and fine particulate impurities from the raw material respectively, ensuring that the purity of the raw material after filtration meets the inspection requirements, thereby avoiding fine particles from clogging the testing instruments, interfering with the reagent reaction, or causing deviations in the actual mass of the sample during the weighing process, thus ensuring the accuracy of the results of testing items such as pesticide residue detection and determination of effective components of traditional Chinese medicine from the source.

[0033] In addition, the drive device drives the filter bucket to swing, realizing continuous flow filtration of raw materials without the need for batch operation. On the one hand, it avoids the problem of "difference in the amount of residual impurities between different batches" in the batch filtration of existing technologies, ensuring that the impurity content of all raw materials to be tested is at the same level, and the subsequent test results are more representative and consistent. On the other hand, the raw materials flow uniformly during continuous filtration without local accumulation, which can reduce the testing and sampling errors caused by local enrichment of impurities, such as mistakenly taking samples from areas with high impurities. Attached Figure Description

[0034] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a perspective view of a food and traditional Chinese medicine pretreatment filtration device according to the present invention.

[0036] Figure 2 This is a perspective view of a food and traditional Chinese medicine pretreatment filtration device according to this utility model from another angle.

[0037] Figure 3 This is a perspective view of another embodiment of the food and traditional Chinese medicine pretreatment filtration device of this utility model.

[0038] Explanation of reference numerals in the attached figures:

[0039] 100-Support frame; 101-Inclined beam; 102-Feed hopper; 200-Filter hopper; 300-Swing arm; 400-Filter layer; 401-First filter body; 411-Support frame; 412-Filter screen; 402-Second filter body; 431-Baffle; 432-First discharge port; 404-Second discharge port; 405-Third discharge port; 500-Drive device; 600-Drive wheel; 700-Rotating shaft; 800-Drive body; 801-First fixed plate; 802-Second fixed plate; 803-Drive block; 804-Connecting shaft; 900-Limiting device; 1000-Inclined plate. Detailed Implementation

[0040] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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.

[0042] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" 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; 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 utility model based on the specific circumstances.

[0043] like Figure 1-2 As shown, the present invention provides a food and traditional Chinese medicine pretreatment filtration device, comprising:

[0044] The support frame 100 is installed at the location of use as needed; the support frame 100 provides overall support; additionally, casters (not shown in the figure) can be installed at the bottom of the support frame 100, allowing the position of the support frame 100 to be changed as needed, thus accommodating use in different locations; such as Figure 1 As shown, a feeding hopper 102 is also provided on the support frame 100. The feeding hopper 102 is arranged adjacent to the filter hopper 200. During use, the raw material is placed in the feeding hopper 102, and the raw material is gradually fed into the filter hopper 200. The filter hopper 200 is set on the support frame 100 by several swing arms 300. Several filter layers 400 are provided in the filter hopper 200. The raw material enters the filter hopper 200 through the feeding hopper 102 and is placed on the filter layers 400. The filter layers 400 filter granular products of different particle sizes. Among them, the mud, dust or large pieces of medicine residue in the raw material pass through the filter layers 400 and are placed in the filter hopper 200, and are collected after being conveyed by the filter hopper 200.

[0045] A drive unit 500 is mounted on a support frame 100; the rotation shaft 700 of the drive wheel 600 passes through the support frame 100, and the drive unit 500 and the drive wheel 600 are rotatably connected; a drive body 800 is mounted on the rotation shaft 700 and is arranged adjacent to the filter hopper 200, indirectly contacting the filter hopper 200 and pushing the filter hopper 200 to swing on the support frame 100; specifically, the drive unit 500 and the drive wheel 600 can be connected by gears or by a chain. In this invention, it is preferred that the drive unit 500 and the drive wheel 600 are connected by a belt, so that the drive unit 500 drives the drive wheel 600 to rotate, and the rotation shaft 700 rotates; as the rotation shaft 700 rotates... During the process, the drive body 800 will rotate accordingly, and indirectly contact the filter bucket 200 through the drive body 800, so that the filter bucket 200 can reciprocate under the support of several swing arms 300; and filter and convey the raw materials placed on several filter layers 400 during the reciprocating motion; it should be noted that since the drive body 800 is in indirect contact with the filter bucket 200, the filter bucket 200 will reset under the action of inertia when the drive body 800 is not in contact with the filter bucket 200. As the drive body 800 continues to push, the filter bucket 200 will reciprocate, thereby filtering and conveying the raw materials on several filter layers 400; in this utility model, the preferred drive device 500 is a 0.5-2kW servo motor.

[0046] The technical solution of this utility model forms a graded filtration structure by setting several filter layers 400 in the filter bucket 200. It can remove impurities with a particle size larger than the target material, such as gravel in food and large pieces of dregs in traditional Chinese medicine, as well as fine particulate impurities such as dust and silt. This ensures that the purity of the raw material after filtration meets the inspection requirements, thereby avoiding fine particles from clogging the testing instruments, interfering with reagent reactions, or causing deviations in the actual mass of the sample during the weighing process. This ensures the accuracy of the results of testing items such as pesticide residue detection and determination of effective components of traditional Chinese medicine from the source.

[0047] In addition, the drive device 500 drives the filter bucket 200 to swing, realizing continuous flow filtration of raw materials without the need for batch operation. On the one hand, this avoids the problem of "difference in the amount of residual impurities between different batches" in the batch filtration of the prior art, ensuring that the impurity content of all raw materials to be tested is at the same level, and the subsequent test results are more representative and consistent. On the other hand, the raw materials flow uniformly during continuous filtration without local accumulation, which can reduce the sampling error caused by the local enrichment of impurities, such as mistakenly taking samples from areas with high impurities.

[0048] like Figure 2As shown, to ensure that the filter bucket 200 can fully reset without contact between the drive body 800 and the filter bucket 200, this utility model also provides several limiting devices 900. These limiting devices 900 are disposed between the support frame 100 and the filter bucket 200. The limiting devices 900 ensure that the filter bucket 200 resets after being pushed by the drive body 800. Preferably, the limiting device 900 is a spring, and both ends of the spring are fixed to the support frame 100 and the filter bucket 200 respectively by welding or bolt connection to ensure the stability of the limiting device 900 during use. Considering the stability of the filter bucket 200's movement during use, the support frame 100... Two limiting devices 900 are installed between the filter bucket 200 and the filter bucket 200. The two limiting devices 900 pull the filter bucket 200 simultaneously to ensure the stability of the filter bucket 200 during operation. During actual operation, the drive body 800 pushes the filter bucket 200 to move. At this time, the limiting devices 900 are stretched under the push of the drive body 800. When the drive body 800 is not in contact with the filter bucket 200, the filter bucket 200 resets under the action of inertia, and the limiting devices 900 retract, pulling the filter bucket 200 to reset. This ensures that the filter bucket 200 can be fully reset and prevents the drive body 800 from failing to contact the filter bucket 200 during rotation.

[0049] Since the impurities in the raw materials have different particle sizes, in order to better filter the impurities, the present invention includes several filter layers 400, each including a first filter body 401 and a second filter body 402. The first filter body 401 is disposed on the side walls of both sides of the filter hopper 200; the second filter body 402 is disposed on the side walls of both sides of the filter hopper 200 and is positioned below the first filter body 401. The first filter body 401 and the second filter body 402 divide the filter hopper 200 into a first filtration space, a second filtration space, and an impurity space. Specifically, the first filter body 401 and the second filter body 402 can be connected to the side walls of both sides of the filter hopper 200 by bolts or by welding. The specific details are subject to the actual situation. When raw materials containing impurities enter the first filter body 401, they are filtered. The portion passing through the first filter body 401 is primary material, and the portion remaining on the first filter body 401 is secondary material. The primary material falls into the second filter body 402 and is filtered by the second filter body 402. The portion remaining on the second filter body 402 is tertiary material, and the portion passing through the second filter body 402 is impurity. The impurity is placed in the impurity space after passing through the second filter body 402. Of course, the naming of primary material, secondary material, tertiary material, impurity, and impurity space is only for one application scenario. The material and space can be named according to the actual situation. For example, what is impurity in one application scenario can be target material in another application scenario.

[0050] The first filter body 401 includes a support frame 411 and a filter screen 412. The support frame 411 is fixedly connected to the side walls on both sides of the filter hopper 200. The filter screen 412 is fixed to the support frame 411. Specifically, the filter screen 412 can be fixed to the support frame 411 by welding or bolting, and the support frame 411 can be fixed to the side walls on both sides of the filter hopper 200 by welding or bolting. When the raw material containing impurities comes into contact with the filter screen 412, filtration is performed. It should be noted that the structure of the second filter body 402 is the same as that of the first filter body 401. To save space, the structure of the second filter body 402 will not be further described in this utility model. However, the filter screen on the first filter body 401... The pore sizes of the filter screens 412 on the first filter body 401 and the second filter body 402 are different; that is, the pore size of the filter screen 412 on the first filter body 401 is larger than that on the second filter body 402. In this filtration stage, impurities larger than the raw material (secondary substances) are retained on the first filter body 401; impurities smaller than the raw material are placed in the impurity space after passing through the second filter body 402. The portion retained on the second filter body 402 needs to be collected for subsequent processing. In this invention, different pore sizes of filter screens are selected for different raw materials. Specifically, the pore size of the filter screen 412 on the first filter body 401 needs to be greater than 5 mm, and the pore size of the filter screen 412 on the second filter body 402 is between 0.5 and 1 mm. Thus, the first filter body 401 filters gravel or large pieces of medicinal residue, while the second filter body 402 filters mud or fine medicinal residue.

[0051] Meanwhile, the support frame 411 is made of food-grade 304 stainless steel, and the filter screen 412 is made of food-grade stainless steel to avoid metal contamination.

[0052] In this utility model, since it is divided into a first filtration space, a second filtration space, and an impurity space, the materials need to be discharged in different directions during the subsequent discharge stage to prevent them from interfering with each other. Therefore, the following are provided: a baffle 431 is provided on the filter hopper 200, and a first discharge port 432 is provided on the baffle 431 to block the first filtration space; a second discharge port 404 is provided on the filter hopper 200 and communicates with the second filtration space to discharge the filtered material from the second filtration space; a third discharge port 405 is provided on the filter hopper 200 and communicates with the impurity space to discharge impurities from the impurity space. Figure 1 As shown, the material is discharged in three directions through the first discharge port 432, the second discharge port 404 and the third discharge port 405. In this way, the first filtration space, the second filtration space and the impurity space can discharge in three directions respectively during the discharge, so as to avoid mutual interference between the first filtration space, the second filtration space and the impurity space during the discharge stage.

[0053] like Figure 3 As shown, in another embodiment of the present invention, an inclined plate 1000 is provided between the baffle 431 and the side wall of the filter hopper 200, and the lower part of the inclined plate 1000 is in contact with the first filter body 401. Specifically, the inclined plate 1000 is fixed to the side wall of the filter hopper 200 and the baffle 431 by bolts or welding. In this way, when the first filter body 401 is filtering, after the secondary material comes into contact with the inclined plate 1000, it will enter the first discharge port 432 under the restriction of the inclined plate 1000, thereby preventing the secondary material from being left on the first filter body 401.

[0054] like Figure 1 As shown, one end of the swing arm 300 is pinned to the support frame 100, and the other end is pinned to the filter hopper 200; thus, when the filter hopper 200 moves, it can move under the support of the swing arm 300; in addition, the support frame 100 includes an inclined beam 101, and several swing arms 300 are arranged on the inclined beam 101 to make the filter hopper 200 tilted; thus, the raw material can be filtered during the swing of the filter hopper 200, and on the other hand, since the filter hopper 200 is tilted, the raw material can be conveyed under its own gravity.

[0055] like Figure 2 The drive body 800 shown includes a first fixed plate 801 and a second fixed plate 802, which are arranged opposite to each other on the rotating shaft 700. A plurality of drive blocks 803 are arranged between the first fixed plate 801 and the second fixed plate 802 through a plurality of connecting shafts 804. Specifically, the first fixed plate 801 and the second fixed plate 802 can be welded to the rotating shaft 700 or can be interference-fitted to the rotating shaft 700, depending on the actual situation. The plurality of drive blocks 803 are arranged at equal intervals between the first fixed plate 801 and the second fixed plate 802. During use, the plurality of drive blocks 803 rotate simultaneously with the rotating shaft 700 and contact the filter bucket 200 one by one through the plurality of drive blocks 803, thereby driving the filter bucket 200 to move. When the filter bucket 200 is between adjacent drive blocks 803, it will reset. In this way, the filter bucket 200 can swing, and the raw materials are filtered and conveyed by the swing.

[0056] In this invention, the preferred driving block 803 is an annular structure, or the driving block 803 has a through hole and can rotate about the connecting shaft 804. This allows the driving block 803 to rotate after contacting the filter hopper 200, changing the contact from hard to sliding, reducing the impact of the driving block 803 on the filter hopper 200, reducing wear on the filter hopper 200, and increasing the service life of the filter hopper 200. Preferably, both the first fixing plate 801 and the second fixing plate 802 are elliptical structures, and the first fixing plate 801... Two drive blocks 803 are arranged opposite each other on the second fixed plate 802, and the two drive blocks 803 are respectively located at both ends of the elliptical major axis. When the drive body 800 rotates with the rotating shaft 700, it can contact the filter bucket 200 through the two drive blocks 803 respectively, thereby driving the filter bucket 200 to move. In this utility model, in order to reduce noise, a rubber ring is preferably provided on the drive block 803. The rubber ring buffers the impact force between the drive block 803 and the filter bucket 200, thereby reducing the noise during use.

[0057] It should be noted that the rotation speed of the drive device 500 can be adjusted according to actual needs, thereby changing the contact frequency between the two drive blocks 803 and the filter bucket 200 to adapt to the filtration requirements of raw materials under different working conditions (different rotation speeds are used for processing raw materials of different particle sizes). In addition, this utility model can also be used for screening and separating substances during the inspection process, and the pore size of the filter screen 412 can be preset according to actual needs.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A food and traditional Chinese medicine pretreatment filtration device, characterized in that, include: Support frame (100), to be installed at the place of use as needed; A filter bucket (200) is mounted on the support frame (100) via several swing arms (300); and several filter layers (400) for filtering impurities in the raw material are provided inside the filter bucket (200); A drive unit (500) is mounted on the support frame (100); The rotation shaft (700) of the drive wheel (600) passes through the support frame (100), and the drive device (500) is rotatably connected to the drive wheel (600); A drive body (800) for indirectly contacting the filter bucket (200) and pushing the filter bucket (200) to swing on the support frame (100) is disposed on the rotating shaft (700) and adjacent to the filter bucket (200).

2. The food and traditional Chinese medicine pretreatment filtration device according to claim 1, characterized in that, Also includes: A plurality of limiting devices (900) for resetting the filter bucket (200) after being pushed by the drive body (800) are disposed between the support frame (100) and the filter bucket (200).

3. The food and traditional Chinese medicine pretreatment filtration device according to claim 1, characterized in that, Several filter layers (400) include: First filter element (401) and second filter element (402); The first filter body (401) is disposed on the side walls on both sides of the filter bucket (200); the second filter body (402) is disposed on the side walls on both sides of the filter bucket (200), and the second filter body (402) is positioned below the first filter body (401); The filter bucket (200) is divided into a first filter space, a second filter space, and an impurity space by the first filter body (401) and the second filter body (402).

4. The food and traditional Chinese medicine pretreatment filtration device according to claim 3, characterized in that, The first filter (401) includes: The support frame (411) is fixedly connected to the side walls on both sides of the filter bucket (200); The filter screen (412) is fixed on the support frame (411).

5. The food and traditional Chinese medicine pretreatment filtration device according to claim 3, characterized in that, Also includes: A baffle (431) for blocking the first filter space is provided on the filter bucket (200); Furthermore, a first discharge port (432) is provided on the baffle (431); The second discharge port (404) for discharging the filtered material from the second filtration space is provided on the filter hopper (200) and is connected to the second filtration space; A third discharge port (405) for discharging impurities from the impurity space is provided on the filter hopper (200) and communicates with the impurity space.

6. The food and traditional Chinese medicine pretreatment filtration device according to claim 1, characterized in that, One end of the swing arm (300) is pinned to the support frame (100), and the other end is pinned to the filter bucket (200).

7. The food and traditional Chinese medicine pretreatment filtration device according to claim 1, characterized in that, The support frame (100) includes an inclined beam (101), and a plurality of the swing arms (300) are arranged on the inclined beam (101) to make the filter bucket (200) tilted.

8. The food and traditional Chinese medicine pretreatment filtration device according to claim 1, characterized in that, The drive unit (800) includes: A first fixing plate (801) and a second fixing plate (802) are disposed opposite to each other on the rotating shaft (700). Several drive blocks (803) are disposed between the first fixed plate (801) and the second fixed plate (802) via several connecting shafts (804).

9. The food and traditional Chinese medicine pretreatment filtration device according to claim 8, characterized in that, Several drive blocks (803) are equally spaced between the first fixing plate (801) and the second fixing plate (802).

10. The food and traditional Chinese medicine pretreatment filtration device according to claim 9, characterized in that, The drive block (803) has a ring structure and can rotate about the connecting shaft (804) as the axis.

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