Extraction device for fecal bacterial liquid

Abstract

The utility model relates to a fecal bacterial liquid extraction device. Comprising an excrement stirring barrel, a normal saline storage barrel, a high-pressure air supply pump, a centrifugal machine and a controller, a first weighing sensor is arranged at the bottom of the excrement stirring barrel; a second weighing sensor is arranged at the bottom of the normal saline storage barrel, the normal saline storage barrel is connected with the excrement stirring barrel through a hose, and an electromagnetic valve is arranged on a connecting pipeline; the high-pressure air supply pump is connected with the excrement stirring barrel through a hose; the centrifugal machine is connected with the bottom of the excrement stirring barrel through a hose. The collected excrement amount is detected through the first weighing sensor, and the total weight of the rest normal saline in the normal saline storage barrel is detected in real time through the second weighing sensor, so that the amount of the normal saline added into the excrement stirring barrel is obtained, and the accuracy of adding the normal saline is effectively ensured; the ratio of the amount of normal saline added during excrement dilution to the amount of collected excrement meets the requirements of the bacterial liquid, and it is effectively ensured that the concentration and activity of the extracted bacterial liquid can meet the use requirements.

Description

Technical Field

[0001] The present application relates to the technical field of fecal bacteria extraction, and in particular to a fecal bacteria liquid extraction device. Background Art

[0002] Fecal microbiota transplantation (FMT) is defined as transplanting the functional flora in the feces of healthy people into the gastrointestinal tract of patients to rebuild new intestinal flora and achieve the treatment of intestinal and extra-intestinal diseases.

[0003] Efficiently extracting functional fecal microbiota from feces is a critical step in fecal microbiota transplantation. The current routine operation is to first dilute the fecal sample with saline, then remove impurities by filtration, and then obtain the required bacteria.

[0004] During the dilution process, there are high requirements for the pairing ratio of feces and saline. Currently, saline is mostly added manually, and the amount of saline added is not accurate enough, which is not conducive to the extraction of the required bacteria. Utility Model Content

[0005] In order to solve or partially solve the problems existing in the related art, the present application provides a fecal bacterial liquid extraction device, which aims to solve the technical problem that the proportion of physiological saline added during the feces dilution process is not accurate enough.

[0006] The present application provides a feces bacterial liquid extraction device, comprising a feces stirring barrel, wherein a first weighing sensor for detecting the weight of the feces stirring barrel is provided at the bottom thereof;

[0007] A physiological saline storage barrel, wherein a second weighing sensor for detecting the weight of the physiological saline storage barrel is provided at the bottom thereof, a liquid outlet pipe of the physiological saline storage barrel is connected to a solenoid valve via a hose, and the other end of the solenoid valve is connected to the feces stirring barrel via a hose;

[0008] A high-pressure air supply pump, wherein the air outlet of the high-pressure air supply pump is connected to the feces stirring barrel through a hose;

[0009] A centrifuge, the centrifuge being connected to the bottom of the feces mixing bucket via a hose;

[0010] A controller, wherein the controller is electrically connected to the feces mixing bucket, the first weighing sensor, the second weighing sensor, the solenoid valve, the high-pressure air supply pump and the centrifuge respectively;

[0011] Among them, the first weighing sensor transmits the weight of the feces mixing bucket filled with feces to the controller, and the controller calculates the amount of feces in the feces mixing bucket according to the set empty bucket weight of the feces mixing bucket; then the controller controls the solenoid valve to open and introduces an appropriate amount of physiological saline into the feces mixing bucket.

[0012] Optionally, in some solutions, the feces stirring barrel includes a barrel body, a barrel cover provided on the barrel body, and a stirring motor;

[0013] A manure liquid outlet pipe is provided at the bottom of the barrel body, and the manure liquid outlet pipe is connected to the centrifuge through a hose;

[0014] The barrel cover is provided with a physiological saline injection tube and a high-pressure gas injection tube, the physiological saline injection tube is connected to the solenoid valve through a hose, and the high-pressure gas injection tube is connected to the high-pressure air supply pump through a pipeline;

[0015] A stirring shaft extending downward is rotatably mounted on the barrel cover, and a stirring blade is provided at the bottom of the stirring shaft;

[0016] The output shaft of the stirring motor is connected to the stirring shaft.

[0017] Optionally, in some embodiments, a filter plate is horizontally provided in the barrel body, and the filter plate divides the cavity in the barrel body into a solid feces cavity and a filtrate cavity connected to the feces liquid outlet pipe.

[0018] Optionally, in some embodiments, the feces bacterial liquid extraction device further includes a base for placing the barrel body, the base is configured with a groove matching the shape of the bottom of the barrel body; a lifting cylinder is provided under the base, and the first weighing sensor is provided between the lifting cylinder and the base;

[0019] The stirring motor is fixedly installed above the feces stirring barrel;

[0020] Among them, after the barrel body is placed on the base, the lifting cylinder is actuated to drive the feces stirring barrel to rise, so that the output shaft of the stirring motor is connected to the stirring shaft.

[0021] Optionally, in some embodiments, the centrifuge includes a housing, a drum rotatably mounted in the housing, an inner liner embedded in the drum, an end cover covered on the housing, and a motor for driving the drum to rotate;

[0022] The upper end of the liner is closed toward the center, thereby forming a groove on the inner side wall of the liner;

[0023] The end cover is provided with a liquid inlet pipe extending toward the interior of the liner, and the liquid inlet pipe is connected to the manure liquid outlet pipe through a hose;

[0024] A liquid outlet pipe which can move along the radial direction of the drum is slidably mounted on the end cover, one end of the liquid outlet pipe is located in the inner liner, and the opening direction of the liquid outlet pipe is parallel to the radial direction of the drum.

[0025] Optionally, in some solutions, the end cover is provided with a liquid extraction cylinder arranged along the radial direction of the drum, and the piston rod of the liquid extraction cylinder is fixedly connected to the liquid outlet pipe.

[0026] Optionally, in some embodiments, the fecal bacterial liquid extraction device also includes a low-temperature constant temperature box, and the saline storage barrel and the centrifuge are both arranged in the low-temperature constant temperature box.

[0027] Optionally, in some embodiments, a fecal bacteria liquid storage test tube is provided on the side wall of the low-temperature constant temperature box, an introduction tube is provided above the fecal bacteria liquid storage test tube, and the introduction tube is connected to the centrifuge through a hose.

[0028] The technical solution provided by this application may have the following beneficial effects:

[0029] The present application detects the amount of collected feces by a first weighing sensor, and detects the total weight of the remaining saline in the saline storage barrel in real time by a second weighing sensor, thereby obtaining the amount of saline added to the feces mixing barrel, thereby effectively ensuring the accuracy of the addition of saline, so that the ratio between the amount of saline added when diluting the feces and the amount of collected feces meets the requirements of the bacterial solution, effectively ensuring that the concentration and activity of the extracted bacterial solution can meet the use requirements.

[0030] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0032] Figure 1 It is a schematic diagram of the structure of a fecal bacteria liquid extraction device shown in an embodiment of the present application;

[0033] Figure 2 It is a schematic diagram of the pipeline connection of the fecal bacteria liquid extraction device shown in the embodiment of the present application;

[0034] Figure 3 is a control block diagram of a fecal bacteria liquid extraction device shown in an embodiment of the present application;

[0035] Figure 4It is a schematic diagram of a structure of feces stirring shown in an embodiment of the present application;

[0036] Figure 5 It is a schematic diagram of the installation of feces stirring shown in the embodiment of the present application;

[0037] Figure 6 It is a structural schematic diagram of a centrifuge shown in an embodiment of the present application;

[0038] Reference numerals:

[0039] 1. Feces mixing barrel; 101. Barrel body; 102. Barrel cover; 103. Mixing motor; 104. Feces liquid outlet pipe; 105. Physiological saline injection pipe; 106. High-pressure gas injection pipe; 107. Mixing shaft; 108. Mixing blades; 109. Filter plate; 110. Base; 111. Lifting cylinder;

[0040] 2. Physiological saline storage tank; 3. High-pressure air supply pump;

[0041] 4. Centrifuge; 401. Shell; 402. Drum; 403. Liner; 404. End cover; 405. Motor; 406. Liquid inlet pipe; 407. Liquid outlet pipe; 408. Liquid extraction cylinder;

[0042] 5. Controller; 6. First weighing sensor; 7. Second weighing sensor; 8. Solenoid valve; 9. Low temperature constant temperature box; 10. Fecal bacteria liquid storage test tube; 11. Introduction tube; 12. Nitrogen cylinder. DETAILED DESCRIPTION

[0043] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0044] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0045] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] During the extraction process of fecal bacterial liquid, the collected feces needs to be diluted with saline first. In the current process of artificially adding saline, the proportion of saline added is not accurate enough, resulting in the concentration and activity of the extracted bacterial liquid not meeting the use requirements.

[0048] For the above technical issues, please refer to Figure 1 or / and Figure 2 and Figure 3 The present application provides a feces bacterial liquid extraction device, including a feces stirring barrel 1, a physiological saline storage barrel 2, a high-pressure air supply pump 3, a centrifuge 4, and a controller 5.

[0049] The feces mixing bucket 1 is used to mix feces and saline solution evenly so as to fully transfer the beneficial bacteria in the feces. A first weighing sensor 6 for detecting its weight is provided at the bottom of the feces mixing bucket 1. The saline storage bucket 2 is used to hold saline solution required for diluting feces. A second weighing sensor 7 for detecting its weight is provided at the bottom of the saline storage bucket 2. The liquid outlet pipe of the saline storage bucket 2 is connected to the solenoid valve 8 through a hose. The other end of the solenoid valve 8 is connected to the feces mixing bucket 1 through a hose. When in use, the solenoid valve 8 is opened to add saline solution into the feces mixing bucket 1.

[0050] The air outlet of the high-pressure air supply pump 3 is connected to the feces stirring barrel 1 through a hose. When in use, the high-pressure air supply pump 3 introduces high-pressure gas into the feces stirring barrel 1, thereby pressing out the liquid in the feces stirring barrel 1.

[0051] The centrifuge 4 is connected to the bottom of the feces mixing bucket 1 through a hose; the controller 5 is electrically connected to the feces mixing bucket 1, the first weighing sensor 6, the second weighing sensor 7, the solenoid valve 8, the high-pressure air supply pump 3 and the centrifuge 4 respectively.

[0052] During operation, step 1, feces are placed in the feces stirring barrel 1, and the first weighing sensor 6 transmits the weight of the feces stirring barrel 1 filled with feces to the controller 5. The controller 5 calculates the amount of feces in the feces stirring barrel 1 according to the set empty barrel weight of the feces stirring barrel 1; then the controller 5 controls the solenoid valve 8 to open, and introduces an appropriate amount of physiological saline into the feces stirring barrel 1. The second weighing sensor 7 detects the weight of the physiological saline storage barrel 2 in real time, and transmits the data to the controller 5 in real time. The controller 5 obtains the specific amount of physiological saline added according to the data transmitted by the second weighing sensor 7. When the amount of physiological saline added reaches the set value, the controller 5 controls the solenoid valve 8 to close, thereby effectively ensuring that the amount of physiological saline added matches the amount of feces collected, ensuring that the ratio between the amount of physiological saline and the amount of feces is accurate, which is conducive to the concentration and activity of the extracted bacterial solution to meet the use requirements.

[0053] Step 2, the controller 5 controls the movement of the feces stirring barrel 1 to evenly mix the feces and saline therein; then the controller 5 controls the movement of the high-pressure air supply pump 3 to inject high-pressure gas into the feces stirring barrel 1 to increase the internal pressure of the feces stirring barrel 1, and then the mixed liquid of the evenly mixed feces and saline is pressed out of the feces stirring barrel 1 and introduced into the centrifuge 4 through a hose; finally, the controller 5 controls the movement of the centrifuge 4 to extract the feces bacterial liquid in the mixed liquid.

[0054] Optionally, in some embodiments, Figure 2 As shown, the air inlet end of the high-pressure air supply pump 3 is connected to the nitrogen bottle 12 through a pipeline. By introducing nitrogen into the feces mixing barrel 1, the technical problem of inactivation of the bacteria in the mixed liquid in an aerobic environment is effectively avoided.

[0055] Optionally, in some embodiments, Figure 4 As shown, the feces stirring barrel 1 is also used for feces collection. Specifically, the feces stirring barrel 1 includes a barrel body 101, a barrel cover 102 covered on the barrel body 101, and a stirring motor 103. When collecting feces, the barrel cover 102 is opened so that the feces being collected can be directly excreted into the barrel body 101. After collection, the barrel cover 102 is covered on the barrel body 101 to close the barrel body 101, thereby preventing the feces odor from leaking out and facilitating transportation. It is easy to use.

[0056] A manure liquid outlet pipe 104 is provided at the bottom of the barrel body 101, and the manure liquid outlet pipe 104 is connected to the centrifuge 4 through a hose; a saline injection pipe 105 and a high-pressure gas injection pipe 106 are provided on the barrel cover 102, and the saline injection pipe 105 is connected to the solenoid valve 8 through a hose, and the high-pressure gas injection pipe 106 is connected to the high-pressure air supply pump 3 through a pipeline; a stirring shaft 107 extending downward is rotatably installed on the barrel cover 102, and a stirring blade 108 is provided at the bottom of the stirring shaft 107; the output shaft of the stirring motor 103 is connected to the stirring shaft 107, and the stirring motor 103 is electrically connected to the controller 5 through a frequency converter.

[0057] During stirring, the controller 5 controls the stirring motor 103 to start and stop through the frequency converter, and the stirring motor 103 rotates, driving the stirring shaft 107 to rotate, and then driving the stirring blades 108 to rotate in the stirring barrel, so as to evenly stir the feces and saline in the feces stirring barrel 1.

[0058] Optionally, in some specific embodiments, a filter plate 109 is horizontally provided in the barrel body 101, and the filter plate 109 has filter holes. The filter plate 109 divides the cavity in the barrel body 101 into a solid feces cavity and a filtrate cavity connected to the feces liquid outlet pipe 104. When the mixture of feces and physiological saline is discharged, a large amount of solids are filtered into the solid feces cavity under the action of the filter plate 109, and the mixed liquid containing a large amount of bacteria passes through the filtrate cavity and respectively passes through the feces liquid outlet pipe 104 and the hose and then flows into the centrifuge 4 for centrifugation. Through the one-time filtration of the filter plate 109, a large amount of solid debris in the mixed liquid can be effectively removed, and the technical problems of too much subsequent centrifugal volume and high centrifugal pressure can be effectively avoided.

[0059] Optionally, in some embodiments, Figure 5 As shown, the feces bacterial liquid extraction device also includes a base 110 for placing the barrel body 101, and the base 110 is constructed with a groove matching the shape of the bottom of the barrel body 101; a lifting cylinder 111 is provided below the base 110, and a first weighing sensor 6 is arranged between the lifting cylinder 111 and the base 110; a stirring motor 103 is fixedly installed above the feces stirring barrel 1, specifically, the stirring motor 103 and the base 110 are fixed on a frame, and the barrel body 101 and the barrel cover 102 of the feces stirring barrel 1 are used as a separate component. Through this design, the barrel body and the barrel cover 102 can be used as disposable consumables, effectively avoiding the technical problem of mutual contamination of bacteria caused by repeated use of the feces stirring barrel 1.

[0060] During operation, after the barrel body 101 is placed on the base 110 , the lifting cylinder 111 is activated to drive the feces mixing barrel 1 and the barrel cover 102 thereon to rise synchronously, so that the output shaft of the mixing motor 103 is connected to the mixing shaft 107 .

[0061] Optionally, in some embodiments, Figure 6 As shown, the centrifuge 4 includes a housing 401, a drum 402 rotatably mounted in the housing 401, an inner liner 403 embedded in the drum 402, an end cover 404 covered on the housing 401, and a motor 405 for driving the drum 402 to rotate. The motor 405 is electrically connected to the controller 5 through a frequency converter.

[0062] The upper end of the liner 403 is closed toward the center, thereby forming a groove on the inner wall of the liner 403; the end cover 404 is provided with a liquid inlet pipe 406 extending toward the interior of the liner 403, and the liquid inlet pipe 406 is connected to the manure liquid outlet pipe 104 through a hose; the end cover 404 is slidably mounted with a liquid outlet pipe 407 that can move along the radial direction of the drum 402, one end of the liquid outlet pipe 407 is located in the liner 403, and its opening direction is parallel to the radial direction of the drum 402.

[0063] During centrifugal operation, the mixture of feces and saline is introduced into the liner 403 through the liquid inlet pipe 406, and then the controller 5 controls the motor 405 to rotate through the frequency converter, and the motor 405 drives the drum 402 to rotate, and then drives the liner 403 to rotate. Under the action of centrifugation, the feces and saline are concentrated on the side wall of the liner 403, and due to the different densities of the solid particles and the bacterial liquid group, the liquid containing the bacterial group is concentrated in the upper liquid near the center of the drum 402; then the liquid outlet pipe 407 is moved so that the liquid outlet pipe 407 is located at one end of the liner 403 and gradually approaches the upper liquid, until the upper liquid with the bacterial group is discharged from the liquid outlet pipe 407, thereby completing the extraction of the bacterial liquid.

[0064] In this embodiment, by separately arranging the liner 403 and the drum 402, the liner 403 can be used as a disposable consumable, thereby effectively avoiding the technical problem of mutual contamination between bacterial colonies due to repeated use.

[0065] Optionally, in some specific embodiments, a liquid extraction cylinder 408 is provided on the end cover 404 and is arranged along the radial direction of the drum 402. The piston rod of the liquid extraction cylinder 408 is fixedly connected to the liquid outlet pipe 407. The liquid outlet pipe 407 is driven to move by the liquid extraction cylinder 408, which facilitates the control of the moving distance of the liquid outlet pipe 407 and helps to improve the degree of automation of the fecal bacterial liquid extraction device.

[0066] The liquid taking cylinder 408 may also be replaced by a linear drive component such as an electric telescopic rod; at the same time, the moving distance of the liquid outlet tube 407 may be monitored and detected by adding a distance measuring sensor to the end cover 404, so as to further ensure the accuracy of the moving distance of the liquid outlet tube 407. Furthermore, a camera may be provided at the inner bottom of the end cover 404, so that the user can observe the liquid taking position in real time, and then make precise adjustments, so as to effectively ensure the accuracy of the liquid taking position.

[0067] Optionally, in some embodiments, Figure 1 As shown, the fecal bacterial liquid extraction device also includes a low-temperature constant temperature box 9, and the saline storage barrel 2 and the centrifuge 4 are both arranged in the low-temperature constant temperature box 9. By placing the saline storage barrel 2 and the centrifuge 4 in the low-temperature constant temperature box 9, the entire fecal bacterial liquid extraction process is always in a completely closed low-temperature environment, effectively avoiding the problem of exogenous infection. At the same time, at a relatively low temperature, the activity of the fecal bacterial liquid can be effectively guaranteed.

[0068] Optionally, in some specific embodiments, a fecal bacterial liquid storage test tube 10 is provided on the side wall of the low-temperature constant temperature box 9, and an introduction tube 11 is provided above the fecal bacterial liquid storage test tube 10. The introduction tube 11 is connected to the centrifuge 4 through a hose. The fecal bacterial liquid obtained after centrifugation passes through the hose and the introduction tube 11 and enters the fecal bacterial liquid storage test tube 10 for placement, which is convenient for the staff to perform subsequent processing or use of the extracted fecal bacterial liquid.

[0069] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A fecal bacterial liquid extraction device, characterized in that: include A feces mixing bucket, wherein a first weighing sensor for detecting the weight of the feces mixing bucket is provided at the bottom of the feces mixing bucket; A physiological saline storage barrel, wherein a second weighing sensor for detecting the weight of the physiological saline storage barrel is provided at the bottom thereof, a liquid outlet pipe of the physiological saline storage barrel is connected to a solenoid valve via a hose, and the other end of the solenoid valve is connected to the feces stirring barrel via a hose; A high-pressure air supply pump, wherein the air outlet of the high-pressure air supply pump is connected to the feces stirring barrel through a hose; A centrifuge, the centrifuge being connected to the bottom of the feces mixing bucket via a hose; A controller, wherein the controller is electrically connected to the feces mixing bucket, the first weighing sensor, the second weighing sensor, the solenoid valve, the high-pressure air supply pump and the centrifuge respectively; Among them, the first weighing sensor transmits the weight of the feces mixing bucket filled with feces to the controller, and the controller calculates the amount of feces in the feces mixing bucket according to the set empty bucket weight of the feces mixing bucket; then the controller controls the solenoid valve to open and introduces an appropriate amount of physiological saline into the feces mixing bucket.

2. A fecal bacteria liquid extraction device according to claim 1, characterized in that: The feces stirring barrel comprises a barrel body, a barrel cover arranged on the barrel body and a stirring motor; A manure liquid outlet pipe is provided at the bottom of the barrel body, and the manure liquid outlet pipe is connected to the centrifuge through a hose; The barrel cover is provided with a physiological saline injection tube and a high-pressure gas injection tube, the physiological saline injection tube is connected to the solenoid valve through a hose, and the high-pressure gas injection tube is connected to the high-pressure air supply pump through a pipeline; A stirring shaft extending downward is rotatably mounted on the barrel cover, and a stirring blade is provided at the bottom of the stirring shaft; The output shaft of the stirring motor is connected to the stirring shaft.

3. A fecal bacteria liquid extraction device according to claim 2, characterized in that: A filter plate is horizontally arranged in the barrel body, and the filter plate divides the cavity in the barrel body into a solid feces cavity and a filtrate cavity connected to the feces liquid outlet pipe.

4. A fecal bacteria liquid extraction device according to claim 2 or 3, characterized in that: Also includes A base for placing the barrel body, the base being configured with a groove matching the shape of the bottom of the barrel body; a lifting cylinder is provided below the base, and the first weighing sensor is provided between the lifting cylinder and the base; The stirring motor is fixedly installed above the feces stirring barrel; Among them, after the barrel body is placed on the base, the lifting cylinder is actuated to drive the feces stirring barrel to rise, so that the output shaft of the stirring motor is connected to the stirring shaft.

5. The feces bacterial liquid extraction device according to claim 1, characterized in that: The centrifuge comprises a housing, a drum rotatably mounted in the housing, an inner liner embedded in the drum, an end cover covered on the housing, and a motor for driving the drum to rotate; The upper end of the liner is closed toward the center, thereby forming a groove on the inner side wall of the liner; The end cover is provided with a liquid inlet pipe extending toward the interior of the liner, and the liquid inlet pipe is connected to the feces stirring barrel through a hose; A liquid outlet pipe which can move along the radial direction of the drum is slidably mounted on the end cover, one end of the liquid outlet pipe is located in the inner liner, and the opening direction of the liquid outlet pipe is parallel to the radial direction of the drum.

6. A fecal bacteria liquid extraction device according to claim 5, characterized in that: The end cover is provided with a liquid extraction cylinder arranged along the radial direction of the drum, and the piston rod of the liquid extraction cylinder is fixedly connected to the liquid outlet pipe.

7. The feces bacterial liquid extraction device according to claim 1, characterized in that: Also includes A low temperature constant temperature box, wherein the physiological saline storage barrel and the centrifuge are both arranged in the low temperature constant temperature box.

8. The feces bacterial liquid extraction device according to claim 7, characterized in that: A feces bacteria liquid storage test tube is arranged on the side wall of the low-temperature constant temperature box, an introduction tube is arranged above the feces bacteria liquid storage test tube, and the introduction tube is connected to the centrifuge through a hose.

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