Extraction equipment for coprophilous fungi

Abstract

The utility model provides coprophilous fungus extraction equipment, which relates to the technical field of coprophilous fungus extraction and comprises a rough filtration stirring device, a fine filtration tank, a collection tank and a filling device which are communicated in sequence, the filling device is provided with a collecting bottle bearing cavity and a protective gas cavity which is communicated with the collecting bottle bearing cavity and located above the collecting bottle bearing cavity, the collecting bottle bearing cavity is provided with a first gas spraying hole set for spraying gas towards the protective gas cavity, and the side wall of the protective gas cavity is provided with a second gas spraying hole set. The coprophilous fungi extraction equipment provided by the utility model has the advantages that the equipment volume can be reduced, the consumable cost is reduced, the recovery efficiency is improved, potential safety hazards such as pipeline disintegration are avoided, a good protective gas environment can be created for the collection bottle, and the viable bacteria rate and the bacteria collection rate of bacteria liquid in the collection bottle are improved.

Description

Technical Field

[0001] This utility model relates to the field of fecal microbial extraction technology, and in particular to a fecal microbial extraction device. Background Technology

[0002] Fecal microbiota transplantation (FMT), a non-restricted medical technology in the field of gut microbiota, involves transplanting fecal samples from a healthy donor into the patient's gut after matching and a series of processing steps. This reconstructs the patient's gut microbiota, thereby achieving intervention and treatment for various diseases. Transplantation methods include oral administration (FMT-C) or enema (FMT-L). Regardless of the method, the donor's fecal samples must be processed before further procedures can proceed, including testing, matching, and preparation.

[0003] Currently, most mainstream fecal microbial extraction equipment on the market adopts a multi-stage fine filter series filtration mode. This design has several technical limitations: First, the multi-stage series structure significantly increases the cost of filter consumables and also leads to an increase in the fixed volume of the equipment; second, the risk of downstream filter media clogging increases, which can easily cause abnormal pressure rises in the filter, resulting in pressure overload at pipeline connections and potential safety hazards such as pipeline rupture; third, the complex filtration process leads to prolonged filtration time and reduced bacterial liquid recovery rate. In addition, during the tubular bacterial liquid collection process, because the protective gas is only sprayed vertically upwards from the side of the collection bottle, a high concentration of protective gas environment cannot be maintained directly above the collection bottle opening, making it difficult to ensure that the surrounding area of ​​the collection bottle remains in an ideal anaerobic state. These technical defects are all detrimental to improving the viability and recovery rate of the bacterial liquid in the collection bottle.

[0004] Therefore, there is an urgent need to provide a fecal microbial extraction device that can solve at least one of the above technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a fecal microbial extraction device that can reduce the size of the device, lower the cost of consumables, improve the recovery efficiency, avoid safety hazards such as pipe detachment, and at the same time create a good protective gas environment for the collection bottle, thereby improving the viability and collection rate of the bacterial solution in the collection bottle.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] In a first aspect, the present invention provides a fecal microbial extraction device, comprising a coarse filtration and stirring device, a fine filtration tank, a collection tank and a filling device connected in sequence. The filling device has a collection bottle supporting cavity and a protective air cavity communicating with the collection bottle supporting cavity and located above the collection bottle supporting cavity. The collection bottle supporting cavity has a first air jet hole group that sprays air toward the protective air cavity, and the side wall of the protective air cavity has a second air jet hole group.

[0008] Compared with existing technologies, the fecal microbial extraction equipment provided by this utility model can achieve precise filtration of fecal microbial liquid through a fine filter tank, which can reduce the size of the equipment, reduce the cost of consumables and filtration time, improve the recovery efficiency, avoid safety hazards such as pipeline collapse, and at the same time create a good protective gas environment for the collection bottle, thereby improving the viable bacteria rate and collection rate of the microbial liquid in the collection bottle.

[0009] In an optional embodiment, the coarse filtration stirring device includes a coarse filtration tank and a power mechanism. The coarse filtration tank is provided with a coarse filtration assembly and a stirring assembly. The coarse filtration assembly divides the interior of the coarse filtration tank into a filtration chamber and a discharge chamber. The stirring assembly extends into the filtration chamber. The power mechanism is configured to be connected to the stirring assembly.

[0010] The aforementioned coarse filtration stirring device can continuously stir the fecal microbial liquid while performing coarse filtration, which can accelerate the flow of the fecal microbial liquid and, to a certain extent, prevent solid viscous substances in the fecal microbial liquid from forming a filter cake on the coarse filtration component, thereby improving the coarse filtration efficiency.

[0011] In an optional embodiment, the coarse filtration stirring device further includes a lifting mechanism, which is connected to the power mechanism to drive the power mechanism to lift.

[0012] The lifting mechanism can drive the power mechanism to rise and fall, so that after the mixing is completed, the power mechanism can be moved away from the mixing components, making it easier to open the first tank.

[0013] In an optional embodiment, the fine filter tank includes a multi-layer filter assembly, which is arranged sequentially along the flow direction of the material inside the fine filter tank, and the filtration accuracy of the filter assembly located downstream is higher than that of the filter assembly located upstream.

[0014] In the above embodiments, since the filtration accuracy of the downstream filter component is higher than that of the upstream filter component, the rapid clogging of the filter component by solid viscous substances can be avoided to a certain extent, thus improving the filtration effect. In addition, the above-mentioned fine filter tank can achieve a multi-stage filtration effect by using multi-layer filter components, which can reduce the size of the equipment, reduce the cost of consumables, and avoid safety hazards such as pipeline collapse.

[0015] In an optional embodiment, a primary pump is provided between the coarse filtration stirring device and the fine filtration tank, a secondary pump is provided between the fine filtration tank and the collection tank, and a tertiary pump is provided between the collection tank and the filling device.

[0016] In the above embodiments, each pump can pump the fecal microbial solution from the upstream tank into the downstream tank, ensuring the stable transfer and discharge of the fecal microbial solution.

[0017] In an optional embodiment, the filling device includes a carrier box, a dispensing mechanism, and a moving mechanism. The carrier box has the collection bottle carrying cavity and a protective gas cavity. The moving mechanism is connected to the dispensing mechanism to move the dispensing mechanism closer to or further away from the carrier box.

[0018] The above-mentioned filling device can fill the fecal bacteria liquid into the collection bottle without affecting the picking and putting of the collection bottle, thus ensuring filling efficiency.

[0019] In an optional embodiment, the carrier box has a weighing sensor located below the collection bottle carrier cavity.

[0020] The weighing sensor can weigh the collection bottle in real time, making it easy to control the filling amount of the fecal microbial solution based on the weight of the collection bottle.

[0021] In an optional embodiment, the second jet hole group includes a first jet hole and a second jet hole disposed opposite to each other.

[0022] The first and second air jets can blow air into the protective gas chamber from both sides, respectively. The protective gas quickly fills the protective gas chamber, ensuring that the space directly above the collection bottle can also maintain a high concentration of protective gas environment, thus ensuring that the area around the collection bottle remains in an ideal oxygen-free state.

[0023] In an optional embodiment, at least one of the first jet orifice and the second jet orifice has an angle between its jet direction and the horizontal direction.

[0024] In the above embodiments, the angle between the jet direction and the horizontal direction allows the jet direction coverage of the second jet hole group to be larger, preventing air from the surrounding environment from entering the protective air chamber.

[0025] In an optional embodiment, the fecal microbiota extraction device further includes a robotic arm and a cap-twisting mechanism and an air-blowing rod mounted on the robotic arm.

[0026] In the above embodiments, before the collection bottle is placed into the collection bottle carrying cavity, the blowing rod can blow a protective gas, such as nitrogen, into the collection bottle to ensure that the collection bottle is also in an oxygen-free environment. The cap twisting mechanism can clamp the collection bottle and transfer the collection bottle in the collection box to the collection bottle carrying cavity of the filling device by a robotic arm; after the fecal microbial liquid is filled, the cap twisting mechanism can also tighten or loosen the cap of the collection bottle while the gripper is holding the collection bottle in the collection bottle carrying cavity. Attached Figure Description

[0027] 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.

[0028] Figure 1 A three-dimensional structural schematic diagram of the fecal microbial extraction device provided in this embodiment of the utility model;

[0029] Figure 2 A three-dimensional structural diagram of the filling device provided in an embodiment of the present utility model from a first-view perspective;

[0030] Figure 3 A three-dimensional structural diagram of the filling device provided in an embodiment of this utility model from a second perspective;

[0031] Figure 4 A partial side view of the filling device provided in an embodiment of this utility model;

[0032] Figure 5 for Figure 4 A-A cross-sectional view;

[0033] Figure 6 A three-dimensional structural schematic diagram of the fecal microbial extraction device (without an inorganic shell) provided in an embodiment of this utility model;

[0034] Figure 7 A cross-sectional view of the coarse filtration stirring device, fine filtration tank, and collection tank when they are assembled according to an embodiment of this utility model;

[0035] Figure 8 A three-dimensional structural schematic diagram of the coarse filter assembly provided in an embodiment of this utility model;

[0036] Figure 9 An exploded view of the coarse filter assembly provided in an embodiment of this utility model;

[0037] Figure 10 An exploded view of the multilayer filter assembly provided in an embodiment of this utility model.

[0038] Icons: 1 - Coarse filtration stirring device; 11 - Coarse filtration tank; 111 - Coarse filtration assembly; 1111 - Outer support frame; 1112 - First separation layer; 1113 - Inner support frame; 1114 - First guide layer; 112 - Stirring assembly; 113 - Filtration chamber; 114 - Discharge chamber; 115 - First tank body; 12 - Power mechanism; 13 - Lifting mechanism; 2 - Fine filtration tank; 21 - Filtration assembly; 211 - Second guide layer; 212 - Second separation layer; 213 - Third guide layer; 22 - Second tank body; 3 - Collection tank; 4 - Filling device; 41 - Carrier box; 411 - Collection bottle carrier cavity; 4111 - First air jet group; 412 - Protective gas cavity; 4121 - First air jet; 4122 - Second air jet; 413 - Weighing sensor; 414 - Lower nitrogen inlet; 415 - Upper nitrogen inlet; 42 - Liquid dispensing mechanism; 43 - Moving mechanism; 44 - Platform; 5 - Primary pump body; 6 - Secondary pump body; 7 - Tertiary pump body; 8 - Robotic arm; 9 - Cap twisting mechanism; 10 - Air blowing rod; 011 - Collection bottle; 012 - Collection box. Detailed Implementation

[0039] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 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 of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model according to the specific circumstances.

[0042] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0043] This embodiment provides a fecal microbial extraction device, such as... Figure 1 and Figure 2 As shown, the device includes a coarse filtration stirring device 1, a fine filtration tank 2, a collection tank 3, and a filling device 4 connected in sequence. The filling device 4 has a collection bottle supporting cavity 411 and a protective gas cavity 412 that is connected to and located above the collection bottle supporting cavity 411. The collection bottle supporting cavity 411 has a first jet hole group 4111 that jets air toward the protective gas cavity 412, and the side wall of the protective gas cavity 412 has a second jet hole group.

[0044] In the fecal microbial extraction equipment provided by this utility model, the fecal microbial liquid can be stirred and coarsely filtered in the coarse filtration stirring device 1, and then it can enter the fine filtration tank 2 for precision filtration. Finally, the filtered fecal microbial liquid enters the collection tank 3 for collection. The filling device 4 fills the fecal microbial liquid in the collection tank 3 into the collection bottle 011. During the filling process, the first jet hole group 4111 jets jets towards the protective gas chamber 412, and the second jet hole group also jets jets from the side wall into the protective gas chamber 412, ensuring that the collection bottle bearing chamber 411 and the upper protective gas chamber 412 both have a good protective gas environment.

[0045] The fecal microbial extraction equipment provided in this embodiment can achieve precise filtration of fecal microbial liquid through the fine filter tank 2, which can reduce the size of the equipment, reduce the cost of consumables and filtration time, improve the recovery efficiency, avoid safety hazards such as pipeline collapse, and at the same time create a good protective gas environment for the collection bottle 011, thereby improving the viability and collection rate of microbial liquid in the collection bottle.

[0046] The first jet hole group 4111 may include one jet hole or multiple jet holes.

[0047] like Figure 2 As shown, the first jet hole group 4111 includes multiple jet holes, which are equally spaced around the side wall of the collection bottle 011. Each jet hole can jet gas in a vertically upward direction, thereby enabling the protective gas to quickly fill the space above the outlet of the first jet hole group 411 of the collection bottle bearing cavity 411 and the protective gas cavity 412.

[0048] In addition, the second jet hole group can be set on one side of the protective air chamber 412, or it can be set on multiple sides of the protective air chamber 412.

[0049] like Figure 2 and Figure 3As shown, the second jet hole group includes a first jet hole 4121 and a second jet hole 4122 arranged opposite to each other, with the first jet hole 4121 and the second jet hole 4122 respectively arranged on both sides of the protective air cavity 412.

[0050] In the above embodiment, the first jet hole 4121 and the second jet hole 4122 can blow air into the protective gas chamber 412 from both sides of the protective gas chamber 412 respectively. The protective gas quickly fills the protective gas chamber 412, so that the space directly above the collection bottle 011 can also maintain a high concentration of protective gas environment, ensuring that the collection bottle 011 is kept in an ideal oxygen-free state.

[0051] In an optional embodiment, at least one of the first jet hole 4121 and the second jet hole 4122 has an angle between its jet direction and the horizontal direction.

[0052] In the above embodiments, the angle between the jet direction and the horizontal direction allows the jet direction coverage of the second jet hole group to be larger, preventing air from the surrounding environment from entering the protective air cavity 412.

[0053] Specifically, the first jet hole 4121 can have an angle between its jet direction and the horizontal direction and the jet direction can be tilted upwards, while the jet direction of the second jet hole 4122 can be parallel to the horizontal direction. In this way, the protective gas ejected from the first jet hole 4121 can ensure that there is a high concentration of protective gas in the protective gas cavity 412, and the second jet hole 4122 can ensure that the upper part of the protective gas cavity 412 is also filled with protective gas, forming an air curtain above the protective gas cavity 412 to prevent air from entering the protective gas cavity 412.

[0054] To ensure that the first jet hole 4121 and the second jet hole 4122 spray air more evenly from the side wall of the protective air cavity 412 into the protective air cavity 412, multiple first jet holes 4121 and multiple second jet holes 4122 are configured, and the multiple first jet holes 4121 and multiple second jet holes 4122 are evenly distributed on the two sides of the protective air cavity 412.

[0055] The structure of the filling device 4 is described in detail below:

[0056] In alternative implementations, such as Figure 2 and Figure 3 As shown, the filling device 4 includes a carrier box 41, a liquid dispensing mechanism 42, and a moving mechanism 43. The carrier box 41 has a collection bottle carrying cavity 411 and a protective gas cavity 412. The moving mechanism 43 is connected to the liquid dispensing mechanism 42 to drive the liquid dispensing mechanism 42 to move closer to or away from the carrier box 41.

[0057] When in use, after the collection bottle 011 is placed in the collection bottle support cavity 411, the moving mechanism 43 drives the liquid dispensing mechanism 42 to approach the support box 41, so that the liquid dispensing mechanism 42 is aligned with the inlet and outlet of the collection bottle 011. After the liquid dispensing mechanism 42 fills the collection bottle 011 with fecal bacteria liquid, the moving mechanism 43 drives the liquid dispensing mechanism 42 away from the support box 41.

[0058] The filling device 4 described above can fill the fecal bacteria liquid into the collection bottle 011 without affecting the picking and putting of the collection bottle 011, thus ensuring filling efficiency.

[0059] Among them, such as Figure 4 and Figure 5 As shown, the carrier box 41 includes a lower nitrogen inlet 414 and an upper nitrogen inlet 415. The lower nitrogen inlet 414 is connected to the first jet hole group 4111 through a pipe to supply gas to the first jet hole group 4111. The lower nitrogen inlet 414 can be configured as one or more. The upper nitrogen inlet 415 is connected to the second jet hole group through a pipe to supply gas to the second jet hole group. The upper nitrogen inlet 415 can be configured as one or more. When there are two upper nitrogen inlets 415, one upper nitrogen inlet 415 is connected to the first jet hole 4121, and the other upper nitrogen inlet 415 is connected to the second jet hole 4122.

[0060] In alternative implementations, such as Figure 4 As shown, the carrier box 41 has a weighing sensor 413, which is located below the collection bottle carrier cavity 411.

[0061] The weighing sensor 413 can weigh the collection bottle 011 in real time, which makes it easy to control the filling amount of fecal bacteria liquid based on the weight of the collection bottle 011.

[0062] In an optional embodiment, the side of the carrier box 41 facing the moving mechanism 43 also has an opening communicating with the collection bottle carrier cavity 411. The moving mechanism 43 is provided with a gripper, which can be driven by a cylinder or an electric cylinder to grip the collection bottle 011 placed in the collection bottle carrier cavity 411.

[0063] In an optional embodiment, the moving mechanism 43 can be a mechanism that performs linear motion, such as a pneumatic cylinder, a hydraulic cylinder, or a linear motor. Its fixed end is fixed on the platform 44, and its moving end is connected to the liquid dispensing mechanism 42 to drive the liquid dispensing mechanism 42 closer to or further away from the carrier box 41.

[0064] Optionally, the stage 44 may also be connected to the aforementioned grippers for holding the collection bottle 011 inside the collection bottle carrying cavity 411.

[0065] In an optional embodiment, the liquid discharge mechanism 42 includes a liquid discharge pipe that communicates with the collection tank 3. The liquid discharge pipe is snapped into the moving end of the moving mechanism 43 and aligned with the inlet and outlet of the collection bottle 011 under the drive of the moving end.

[0066] In alternative implementations, such as Figure 6 As shown, a three-stage pump body 7 is provided between the filling device 4 and the collection tank 3, a two-stage pump body 6 is provided between the fine filter tank 2 and the collection tank 3, and a first-stage pump body 5 is provided between the coarse filter stirring device 1 and the fine filter tank 2.

[0067] In the above embodiments, each pump can pump the fecal microbial solution from the upstream tank into the downstream tank, ensuring the stable transfer and discharge of the fecal microbial solution.

[0068] Among them, the primary pump body 5, the secondary pump body 6, and the tertiary pump body 7 can be peristaltic pumps.

[0069] The structure of the coarse filtration stirring device 1 is described in detail below:

[0070] In alternative implementations, such as Figure 6 and Figure 7 As shown, the coarse filtration stirring device 1 includes a coarse filtration tank 11 and a power mechanism 12. The coarse filtration tank 11 is provided with a coarse filtration assembly 111 and a stirring assembly 112. The coarse filtration assembly 111 divides the interior of the coarse filtration tank 11 into a filtration chamber 113 and a discharge chamber 114. The stirring assembly 112 extends into the filtration chamber 113. The power mechanism 12 is configured to be connected to the stirring assembly 112.

[0071] During use, the power mechanism 12 drives the stirring assembly 112 to stir the fecal bacteria liquid in the filter chamber 113. After being coarsely filtered by the coarse filter assembly 111, the fecal bacteria liquid enters the discharge chamber 114 and is finally discharged from the discharge chamber 114 to the fine filter tank 2.

[0072] The coarse filtration stirring device 1 described above can continuously stir the fecal microbial liquid while performing coarse filtration, which can accelerate the flow of the fecal microbial liquid and, to a certain extent, prevent solid viscous substances in the fecal microbial liquid from forming a filter cake on the coarse filtration component 111, thereby improving the coarse filtration efficiency.

[0073] In an optional embodiment, to ensure that the coarse filter assembly 111 can stably filter the fecal microbial solution, such as... Figure 8 and Figure 9 As shown, the coarse filter assembly 111 includes an outer support frame 1111, a first separation layer 1112, and an inner support frame 1113, which are sequentially arranged from the outside to the inside. The outer support frame 1111 supports the first separation layer 1112, which performs coarse filtration of the fecal microbial liquid. The inner support frame 1113 prevents the first separation layer 1112 from deforming during the high-speed rotation of the fecal microbial liquid.

[0074] During the filtration process, under the action of centrifugal force and gravity, the solid viscous substances in the fecal microbial solution will precipitate and press against each other, gradually accumulating into a filter cake above the first separation layer 1112, affecting the filtration effect. Therefore, in an optional embodiment, the coarse filter assembly 111 further includes a first flow guiding layer 1114, which has a mesh structure and is located between the inner support frame 1113 and the first separation layer 1112.

[0075] During the filtration process, the solid viscous substances in the fecal microbial liquid can preferentially contact the first guide layer 1114. The solid viscous substances can hook onto the mesh structure of the first guide layer 1114, separating the fixed viscous substances that would otherwise easily form a filter cake layer into pieces. The fecal microbial liquid can flow through the mesh gaps of the first guide layer 1114 without being blocked by the filter cake, thus improving the filtration efficiency of the coarse filter component 111.

[0076] Of course, if the first flow guiding layer 1114 is made of a harder material, the first separation layer 1112 and the first flow guiding layer 1114 can be fixed together, omitting the outer support frame 1111 or the inner support frame 1113.

[0077] In alternative implementations, such as Figure 7 As shown, the coarse filter tank 11 also includes a first tank body 115. The coarse filter assembly 111 is disposed inside the first tank body 115, dividing the space inside the first tank body 115 into a filter chamber 113 and a discharge chamber 114. The stirring assembly 112 may include a rotating shaft and stirring blades connected to the rotating shaft. The rotating shaft is rotatably engaged with the first tank body 115, and the stirring blades are located inside the filter chamber 113 to stir the fecal microbial liquid inside the filter chamber 113.

[0078] In alternative implementations, such as Figure 7 As shown, the power mechanism 12 may include a rotating motor, and the power output end of the rotating motor may be connected to a rotating shaft, thereby driving the rotating shaft to rotate relative to the first tank 115.

[0079] The power output end of the rotating motor can be connected to the rotating shaft. After the mixing is completed, the two can be separated to facilitate the opening of the first tank 115.

[0080] In alternative implementations, such as Figure 6 As shown, the coarse filtration stirring device 1 also includes a lifting mechanism 13, which is connected to the power mechanism 12 to drive the power mechanism 12 to lift.

[0081] In use, the lifting mechanism 13 drives the power mechanism 12 closer to the stirring assembly 112, connecting the power output end of the power mechanism 12 to the rotating shaft in the stirring assembly 112. The power mechanism 12 drives the rotating shaft to rotate, thereby stirring the fecal bacteria in the first tank 115. After stirring is completed, the lifting mechanism 13 drives the power mechanism 12 away from the stirring assembly 112, facilitating the opening of the first tank 115.

[0082] It should be noted that any structure capable of driving the power mechanism 12 to rise or fall can be the lifting mechanism 13 mentioned in the above embodiments. The lifting mechanism 13 may include a pneumatic cylinder, a hydraulic cylinder, or a linear motor, etc.

[0083] The structure of the fine filter tank 2 is described in detail below:

[0084] In alternative implementations, such as Figure 7 As shown, the fine filter tank 2 includes a second tank body 22, the inlet of the second tank body 22 is connected to the outlet of the first tank body 115, and the outlet of the second tank body 22 is connected to the inlet of the collection tank 3.

[0085] In alternative implementations, such as Figure 10 As shown, the fine filter tank 2 includes a multi-layer filter assembly 21, which is arranged sequentially along the flow direction of the material in the fine filter tank 2, and the filtration accuracy of the downstream filter assembly 21 is higher than that of the upstream filter assembly 21.

[0086] In the above embodiments, since the filtration accuracy of the downstream filter component 21 is higher than that of the upstream filter component 21, it can prevent solid viscous substances from quickly clogging the filter component 21 to a certain extent, thus improving the filtration effect. In addition, the above-mentioned fine filter tank 2 can achieve a multi-stage filtration effect by using multi-layer filter components 21, which can reduce the size of the equipment, reduce the cost of consumables, and avoid safety hazards such as pipe rupture.

[0087] In alternative implementations, such as Figure 10 As shown, each filter assembly 21 may include a second flow guide layer 211, a second separation layer 212 and a third flow guide layer 213, with the second separation layer 212 located between the second flow guide layer 211 and the third flow guide layer 213.

[0088] The function of the second guide layer 211 is to allow solid viscous substances in the fecal microbial liquid to come into contact with it first. Its principle is similar to that of the first guide layer 1114, so that the flow of the fecal microbial liquid is no longer obstructed by the filter cake. The third guide layer 213 can further hook the fine solid viscous substances, reducing the downstream discharge of fine solid viscous substances. At the same time, it can also support the second separation layer 212, enhance the resistance of the second separation layer 212 to the pressure of the fecal microbial liquid, and prevent the second separation layer 212 from being deformed by the force, thus affecting the filtration effect.

[0089] like Figure 10 As shown, the fine filter tank 2 includes a three-layer filter assembly 21. Of course, the fine filter tank 2 may also include two, four or five layers of filter assembly 21, and the user can choose according to his or her needs.

[0090] In alternative implementations, such as Figure 6 As shown, the fecal microbial extraction device also includes a robotic arm 8, a cap-twisting mechanism 9, and an air-blowing rod 10 mounted on the robotic arm 8.

[0091] In the above embodiments, before the collection bottle 011 is placed into the collection bottle carrying cavity 411, the blowing rod 10 can blow a protective gas, such as nitrogen, into the collection bottle 011 to ensure that the collection bottle 011 is also in an oxygen-free environment. The cap twisting mechanism 9 can clamp the collection bottle 011 and transfer the collection bottle 011 in the collection box 012 to the collection bottle carrying cavity 411 of the filling device 4 by the robotic arm 8; after the fecal bacteria liquid is filled, the cap twisting mechanism 9 can also tighten or loosen the cap of the collection bottle 011 when the gripper clamps the collection bottle 011 in the collection bottle carrying cavity 411.

[0092] The robotic arm 8 can be an existing four-axis robotic arm or a six-axis robotic arm, as long as it can realize the movement of the cap twisting mechanism 9 and the air blowing rod 10 in space.

[0093] In addition, the cap twisting mechanism 9 can use a rotary cylinder in conjunction with a gripper cylinder. During the cap twisting operation, the gripper cylinder drives the gripper to hold the cap, and the rotary cylinder drives the gripper cylinder to rotate, thereby causing the gripper to twist the cap.

[0094] In an optional embodiment, the fecal microbial extraction device also includes a housing, and a coarse filtration and stirring device 1, a fine filtration tank 2, a collection tank 3, and a filling device 4 are all arranged on a platform inside the housing.

[0095] 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 fecal microbial extraction device, characterized in that, The device includes a coarse filtration stirring device (1), a fine filtration tank (2), a collection tank (3), and a filling device (4) connected in sequence. The filling device (4) has a collection bottle carrying cavity (411) and a protective gas cavity (412) that communicates with and is located above the collection bottle carrying cavity (411). The collection bottle carrying cavity (411) has a first jet hole group (4111) that jets towards the protective gas cavity (412). The side wall of the protective gas cavity (412) has a second jet hole group.

2. The fecal microbial extraction device according to claim 1, characterized in that, The coarse filtration stirring device (1) includes a coarse filter tank (11) and a power mechanism (12). The coarse filter tank (11) is provided with a coarse filtration assembly (111) and a stirring assembly (112). The coarse filtration assembly (111) divides the interior of the coarse filter tank (11) into a filtration chamber (113) and a discharge chamber (114). The stirring assembly (112) extends into the filtration chamber (113). The power mechanism (12) is configured to be connected to the stirring assembly (112).

3. The fecal microbial extraction device according to claim 2, characterized in that, The coarse filtration stirring device (1) further includes a lifting mechanism (13), which is connected to the power mechanism (12) to drive the power mechanism (12) to lift.

4. The fecal microbial extraction device according to claim 1, characterized in that, The fine filter tank (2) includes a multi-layer filter assembly (21), which is arranged sequentially along the flow direction of the material in the fine filter tank (2), and the filter assembly (21) located downstream has a higher filtration accuracy than the filter assembly (21) located upstream.

5. The fecal microbial extraction device according to claim 1, characterized in that, A primary pump (5) is provided between the coarse filtration stirring device (1) and the fine filtration tank (2), a secondary pump (6) is provided between the fine filtration tank (2) and the collection tank (3), and a tertiary pump (7) is provided between the collection tank (3) and the filling device (4).

6. The fecal microbial extraction device according to claim 1, characterized in that, The filling device (4) includes a carrier box (41), a liquid dispensing mechanism (42), and a moving mechanism (43). The carrier box (41) has the collection bottle carrying cavity (411) and the protective gas cavity (412). The moving mechanism (43) is connected to the liquid dispensing mechanism (42) to drive the liquid dispensing mechanism (42) to move closer to or away from the carrier box (41).

7. The fecal microbial extraction device according to claim 6, characterized in that, The carrier box (41) has a weighing sensor (413) located below the collection bottle carrier cavity (411).

8. The fecal microbial extraction device according to any one of claims 1-7, characterized in that, The second jet hole group includes a first jet hole (4121) and a second jet hole (4122) disposed opposite to each other.

9. The fecal microbial extraction device according to claim 8, characterized in that, In the first jet hole (4121) and the second jet hole (4122), at least one of them has an angle between its jet direction and the horizontal direction.

10. The fecal microbial extraction device according to any one of claims 1-7, characterized in that, The fecal microbiota extraction device also includes a robotic arm (8) and a cap twisting mechanism (9) and an air blowing rod (10) mounted on the robotic arm (8).

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