Bovine gastric juice negative pressure extraction device and control system

Abstract

The utility model discloses a cattle gastric juice negative pressure extraction device and a control system, which comprise a main body support frame and auxiliary moving wheels, and further comprise an endoscopic auxiliary suction mechanism, a gastric juice suction mechanism and an automatic gastric juice subpackaging mechanism, the bottom of the main body support frame is connected with the auxiliary moving wheels, and the auxiliary moving wheels are connected with the auxiliary moving wheels. The upper portion of the main body supporting frame is connected with an endoscopic auxiliary suction mechanism, the middle of the endoscopic auxiliary suction mechanism is connected with a gastric juice suction mechanism, and the interior of the endoscopic auxiliary suction mechanism is connected with an automatic gastric juice subpackaging mechanism. According to the negative pressure extraction device for the bovine gastric juice and the control system, the endoscopic auxiliary suction mechanism assists the gastric juice suction mechanism to suck the bovine gastric juice, and after the gastric juice leading-in hose enters the stomach of the bovine, the position of the gastric juice and the relative position of the front end of the gastric juice leading-in hose and the gastric juice can be observed in real time through the endoscopic camera; therefore, the gastric juice leading-in hose can be controlled to be directly inserted into gastric juice to achieve accurate suction.

Description

Technical Field

[0001] This utility model relates to the field of livestock feeding equipment technology, and in particular to a negative pressure extraction device and control system for bovine gastric juice. Background Technology

[0002] Bovine gastric juice contains various digestive enzymes and is a key component in studying the in vitro fermentation changes of forage and the degree of feed digestibility in the bovine stomach. Bovine gastric juice negative pressure aspiration refers to using negative pressure to extract fluid from the stomach through a specific device. This technique is commonly used to treat gastric diseases in cattle, such as gastric torsion or gastric retention. Negative pressure aspiration helps remove accumulated fluid from the stomach, reduces gastric pressure, and promotes the cattle's recovery. In modern large-scale farming, the degree of fermentation of artificial feeds, especially mixed concentrates, in the bovine stomach and the evaluation of their feed quality largely depend on in vitro tests using bovine gastric juice. Pharmacokinetics and metabolic effects also rely on digestion tests. Negative pressure aspiration helps remove accumulated fluid from the stomach, reduces gastric pressure, and promotes the cattle's recovery. This technique must be performed under the guidance of a professional veterinarian to ensure correct operation and minimize discomfort to the cattle. Meanwhile, bovine gastric juice testing includes analyzing the pH value, acidity, alkalinity, enzyme activity, microorganisms, and nutrients of the gastric juice to assess the digestive health of cattle and detect potential digestive problems. This is usually performed by veterinarians or professional animal health experts.

[0003] The current main method for collecting bovine gastric fluid is to insert a plastic catheter with a diameter of about 5 cm into the cow's stomach and extract the fluid by experience. According to the operator's experience, after inserting the catheter a certain length into the cow's stomach, it is quickly pulled back about 20 cm, and then quickly inserted back about 20 cm. After repeating this quick operation several times, the gastric fluid will flow out from the other end of the catheter, which is positioned lower, under the siphon effect. The only negative pressure suction is performed by experienced veterinarians blindly inserting the catheter to aspirate the gastric fluid, which is extremely easy to damage the gastric mucosa and cause blockage.

[0004] In summary, the operational drawbacks of this method and device for extracting gastric juice are obvious: 1. The insertion of the gastric tube relies entirely on experience; if the tube is not inserted to a certain depth, it cannot contact the bovine gastric juice, and therefore cannot extract it; 2. If the number and frequency of rapid pulling are not up to standard, it will damage the bovine stomach wall and will not effectively extract the gastric juice; 3. When the drainage tube in the stomach is blocked, repeated pulling will not extract the gastric juice. Therefore, it is necessary to propose a negative pressure extraction device and control system for bovine gastric juice to provide a new technical solution to solve the technical problems mentioned in the above patent.

[0005] Main References

[0006] [1] Yang Xinjian, Yu Liu, Xie Xiangxue, et al. Effects of rumen amylase supplementation on nutrient loss rate and milk production performance in dairy cows during in vitro fermentation [J]. Chinese Dairy Cattle, 2023, (4): 9-13.

[0007] [2] Wang Fang, Xu Yuanjun, Niu Junli, et al. Study on evaluation of nutritional value of ruminant feed by in vitro gas production method [J]. Chinese Journal of Animal Husbandry and Veterinary Medicine, 2016, 43(1):8.

[0008] [3]NAVARRO ORTIZ CA,ROA VEGAM L.Determination of in vitrodigestibility of forage species used in ruminant feeding[J].Tropical AnimalHealth and Production, 2020,52(6):3045-59.

[0009] [4] Hou Yajie. Application of fresh bovine gastric juice in the treatment of rumen acidosis in dairy cows [J]. Modern Animal Husbandry Technology, 2010, (1): 113-.

[0010] [5] Niu Qingxia, Zhao Rongqing, Wang Furang. The value of serum and gastric juice ferritin determination in the diagnosis of gastric cancer [J]. Chinese Journal of Health Laboratory Technology, 1996. Utility Model Content

[0011] Based on this, it is necessary to provide a negative pressure extraction device and control system for bovine gastric fluid to address the above-mentioned technical problems. The device uses an endoscopic auxiliary suction mechanism to assist the gastric fluid extraction mechanism in extracting bovine gastric fluid. After the gastric fluid inlet tube enters the bovine stomach, the position of the gastric fluid and the relative position of the tip of the gastric fluid inlet tube to the gastric fluid can be observed in real time through an endoscopic camera. This allows the gastric fluid inlet tube to be directly inserted into the gastric fluid to achieve precise extraction.

[0012] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0013] A negative pressure extraction device and control system for bovine gastric juice is used for visual extraction and dispensing of bovine gastric juice.

[0014] The gastric fluid negative pressure extraction device specifically includes a main support frame and auxiliary moving wheels, as well as an endoscopic auxiliary suction mechanism, a gastric fluid suction mechanism, and a gastric fluid automatic dispensing mechanism. The auxiliary moving wheels are connected to the bottom of the main support frame, the endoscopic auxiliary suction mechanism is connected to the top of the main support frame, the gastric fluid suction mechanism is connected to the middle of the endoscopic auxiliary suction mechanism, and the gastric fluid automatic dispensing mechanism is connected inside the endoscopic auxiliary suction mechanism.

[0015] The endoscopic auxiliary aspiration mechanism includes a gastric fluid aspiration box, a box-sealed door, a universal base, an endoscopic monitor, and a gastric endoscopic component. The gastric fluid aspiration box is fixedly connected to the top surface of the main support frame. The box-sealed door is slidably provided on the surface of the gastric fluid aspiration box. The universal base is fixedly connected to the top surface of the gastric fluid aspiration box, and the endoscopic monitor is hinged to the top surface of the universal base.

[0016] As a preferred embodiment of the negative pressure extraction device for bovine gastric fluid provided by this utility model, the gastric endoscope component includes a display data export line, an endoscope camera, and an LED lighting fixture. The display data export line is fixedly connected to the middle of the endoscope, and the end of the display data export line away from the endoscope is fixedly connected to the endoscope camera. An LED lighting fixture is fixedly connected to the surface of the endoscope camera.

[0017] As a preferred embodiment of the negative pressure extraction device for bovine gastric juice provided by this utility model, the gastric juice extraction mechanism includes a negative pressure extraction pump, a rigid inlet pipe, a gastric juice inlet hose, a front-end filter head, a data cable positioning ring, a gastric juice discarding component, and a gastric juice retention input component. The negative pressure extraction pump is fixedly connected to the middle of the gastric juice extraction box. The input pipe of the negative pressure extraction pump is fixedly connected to the rigid inlet pipe. The end of the rigid inlet pipe away from the negative pressure extraction pump extends to the outside of the gastric juice extraction box. The end of the rigid inlet pipe away from the negative pressure extraction pump is fixedly connected to the gastric juice inlet hose. The end of the gastric juice inlet hose away from the rigid inlet pipe is fixedly connected to the front-end filter head. A data cable positioning ring is fixedly connected to the surface of the gastric juice inlet hose. A display data output line is snapped into the middle of the data cable positioning ring.

[0018] As a preferred embodiment of the negative pressure extraction device for bovine gastric fluid provided by this utility model, the gastric fluid discarding component includes an external fluid guide tube and a first solenoid valve. The external fluid guide tube is fixedly connected to the surface of the rigid inlet pipe, and the first solenoid valve is fixedly connected to the middle of the external fluid guide tube.

[0019] In a preferred embodiment of the negative pressure extraction device for bovine gastric juice provided by this utility model, the gastric juice retention input tube includes an internal support top frame, an inner guide tube, a second solenoid valve, and a gastric juice output tube. The internal support top frame is fixedly connected to the top surface of the inner wall of the gastric juice suction box. The inner guide tube is fixedly connected to the middle part of the internal support top frame. One end of the inner guide tube is fixedly connected to the output end of the negative pressure suction pump. The second solenoid valve is fixedly connected to the middle part of the inner guide tube. The gastric juice output tube is fixedly connected to the surface of the inner guide tube.

[0020] As a preferred embodiment of the negative pressure extraction device for bovine gastric fluid provided by this utility model, the automatic gastric fluid dispensing mechanism includes a servo motor, a motor drive shaft, a transmission gear, a dispensing assembly, and a pipeline closure assembly. The servo motor is fixedly connected to the middle of the gastric fluid suction box, and the output end of the servo motor is driven by a motor drive shaft. The end of the motor drive shaft away from the servo motor is fixedly connected to a transmission gear.

[0021] In a preferred embodiment of the negative pressure extraction device for bovine gastric fluid provided by this utility model, the dispensing assembly includes a bottom flower-shaped convex plate, a central rotating shaft, a top flower-shaped convex plate, an external transmission gear ring, a storage bottle fixing frame, a pressure sensor, and a gastric fluid storage bottle. The bottom flower-shaped convex plate is fixedly connected to the middle of the gastric fluid suction box. The central rotating shaft is movably connected to the middle of the bottom flower-shaped convex plate. The top flower-shaped convex plate is fixedly connected to the surface of the central rotating shaft. A certain surface of the top flower-shaped convex plate contacts the top surface of the bottom flower-shaped convex plate. An external transmission gear ring is fixedly connected to the outer periphery of the top flower-shaped convex plate. The external transmission gear ring meshes with a transmission gear. A storage bottle positioning plate is fixedly connected to the end of the central rotating shaft away from the bottom flower-shaped convex plate. Six storage bottle fixing frames are fixedly connected in a circular array in the middle of the storage bottle positioning plate. A pressure sensor is fixedly connected to the middle of each of the six storage bottle fixing frames. A gastric fluid storage bottle is movably disposed in the middle of each storage bottle fixing frame.

[0022] In a preferred embodiment of the negative pressure extraction device for bovine gastric fluid provided by this utility model, the pipeline closure assembly includes a connecting rod, a lifting guide rod, a switching chamber, a piston, and a PLC controller. The connecting rod is fixedly connected to the surface of the central rotating shaft, and the lifting guide rod is fixedly connected to the end of the connecting rod away from the central rotating shaft. The switching chamber is fixedly connected to the middle of the inner fluid guide tube, and the piston is fixedly connected to the end of the lifting guide rod away from the connecting rod. The piston is slidably connected to the inner wall of the switching chamber, and the PLC controller is fixedly connected to the top surface of the gastric fluid suction box.

[0023] A negative pressure extraction and control system for bovine gastric fluid includes a negative pressure extraction device for bovine gastric fluid as described in any one of the above-mentioned items.

[0024] PLC controller: The PLC can receive signals from the first solenoid valve, the second solenoid valve and the pressure sensor input device, and execute corresponding control actions based on these inputs. It can also receive signals from the remote control system.

[0025] Remote control system: The remote control system can be used to remotely send control signals to the negative pressure suction pump and PLC controller and control the opening and closing of the negative pressure suction pump, the first solenoid valve and the second solenoid valve;

[0026] Negative pressure suction pump: By working with a rigid inlet tube and a gastric fluid inlet hose, a negative pressure suction pump is used to suction out the fluid from the cow's stomach;

[0027] Servo motor: The positioning plate can be driven to rotate the gastric juice storage bottle by the servo motor, and the gastric juice storage bottle below the gastric juice outlet tube can be switched.

[0028] Pressure sensor: After the gastric juice enters the gastric juice storage bottle, the pressure sensor transmits the pressure signal to the PLC controller, which can monitor the weight of the gastric juice stored inside the gastric juice storage bottle in real time.

[0029] First solenoid valve: controls the opening and closing of the external liquid guide tube;

[0030] The second solenoid valve controls the opening and closing of the inner liquid guide tube.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The present invention provides a negative pressure extraction device and control system for bovine gastric juice. The gastric juice extraction mechanism is assisted by an internal viewing auxiliary suction mechanism to extract bovine gastric juice. After the gastric juice inlet tube enters the bovine stomach, the position of the gastric juice and the relative position of the front end of the gastric juice inlet tube to the gastric juice can be observed in real time through an internal viewing camera. In this way, the gastric juice inlet tube can be directly inserted into the gastric juice to achieve precise extraction.

[0033] The bovine gastric fluid negative pressure extraction device and control system provided by this utility model connects the internal camera and the display data output line through the data line positioning ring in the gastric fluid extraction mechanism. This allows for quick disassembly and assembly of the display data output line and the data line positioning ring, thereby facilitating the cleaning, storage, and replacement of the data line positioning ring and the display data output line.

[0034] The bovine gastric fluid negative pressure extraction device and control system provided by this utility model can collect the gastric fluid extracted by the gastric fluid suction mechanism by setting an automatic gastric fluid dispensing mechanism. At the same time, the positioning plate of the storage bottle can be rotated by a servo motor, thereby realizing the automatic switching and dispensing of gastric fluid.

[0035] The negative pressure extraction device and control system for bovine gastric fluid provided by this utility model, through the design of the pipeline closure component in the automatic gastric fluid dispensing mechanism, when the positioning plate of the storage bottle drives the gastric fluid storage bottle to rotate and switch, there is a certain distance between the two gastric fluid storage bottles. By moving the piston inside the switching chamber, the inner guide tube is blocked, thereby avoiding the problem of leakage when the gastric fluid storage bottle is switched. Attached Figure Description

[0036] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments 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.

[0037] Figure 1 A schematic diagram of the overall structure of the negative pressure extraction device and control system for bovine gastric fluid provided by this utility model;

[0038] Figure 2 A schematic diagram of the internal structure of the negative pressure extraction device for bovine gastric fluid provided by this utility model;

[0039] Figure 3 This is a schematic diagram of the internal auxiliary suction mechanism of the negative pressure extraction device for bovine gastric fluid provided by this utility model.

[0040] Figure 4 The present invention provides a negative pressure extraction device for bovine gastric fluid. Figure 3 Enlarged structural diagram at point A;

[0041] Figure 5 A schematic diagram of the internal structure of the gastric fluid suction box of the negative pressure extraction device for bovine gastric fluid provided by this utility model;

[0042] Figure 6 A schematic diagram of the connection structure between the gastric juice suction mechanism and the automatic gastric juice dispensing mechanism of the negative pressure gastric juice extraction device for cattle provided by this utility model.

[0043] Figure 7 A schematic diagram of the gastric fluid suction mechanism of the negative pressure extraction device for bovine gastric fluid provided by this utility model;

[0044] Figure 8 A schematic diagram of the gastric juice retention input tube in the gastric juice suction mechanism of the bovine gastric juice negative pressure extraction device provided by this utility model;

[0045] Figure 9 A schematic diagram of the automatic gastric juice dispensing mechanism of the negative pressure extraction device for bovine gastric juice provided by this utility model;

[0046] Figure 10 A schematic diagram of the connection structure between the bottom and top flower-shaped convex plates of the negative pressure extraction device for bovine gastric fluid provided by this utility model;

[0047] Figure 11 A schematic diagram of the pipeline closure component in the automatic gastric juice dispensing mechanism of the negative pressure extraction device for bovine gastric juice provided by this utility model;

[0048] Figure 12A cross-sectional structural diagram of the storage bottle fixing frame of the bovine gastric fluid negative pressure extraction device provided by this utility model;

[0049] Figure 13 A flowchart illustrating the negative pressure extraction control system for bovine gastric fluid provided by this utility model.

[0050] The markings in the diagram are explained as follows:

[0051] 1. Main support frame; 2. Auxiliary casters; 4. Endoscopic auxiliary suction mechanism; 5. Gastric fluid suction mechanism; 6. Automatic gastric fluid dispensing mechanism; 7. Gastric fluid suction box; 8. Box sealing door; 9. Universal base; 10. Endoscopic monitor; 11. Display data export cable; 12. Endoscopic camera; 13. LED lighting fixture; 14. Negative pressure suction pump; 15. Rigid inlet tube; 16. Gastric fluid inlet hose; 17. Front filter head; 18. Data cable positioning ring; 19. External fluid guide tube; 20. First solenoid valve; 1. Internal support top frame; 22. Internal fluid guide tube; 23. Second solenoid valve; 24. Gastric fluid outlet tube; 25. Servo motor; 26. Motor drive shaft; 27. Transmission gear; 28. Bottom flower-shaped convex plate; 29. ​​Central rotating shaft; 30. Top flower-shaped convex plate; 31. External transmission gear ring; 32. Liquid storage bottle positioning plate; 33. Liquid storage bottle fixing bracket; 34. Pressure sensor; 35. Gastric fluid storage bottle; 36. Connecting rod; 37. Lifting guide rod; 38. Conversion chamber; 40. Piston; 41. PLC controller. Detailed Implementation

[0052] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0053] As described in the background section, the operational drawbacks of this device for extracting gastric juice are obvious: 1. The insertion of the gastric tube relies entirely on experience. If the tube is not inserted to a certain depth, the gastric juice cannot be reached and therefore cannot be extracted; 2. If the number and frequency of rapid pulling and aspiration are not up to standard, it will damage the stomach wall of the cow and will not effectively extract the gastric juice; 3. When the drainage tube in the stomach is blocked, repeated pulling and aspiration will not extract the gastric juice.

[0054] To solve this technical problem, this utility model provides a negative pressure extraction device and control system for bovine gastric juice, which is applied to the visual extraction and dispensing of bovine gastric juice.

[0055] For details, please refer to Figures 1-13 The bovine gastric fluid negative pressure extraction device and control system specifically includes a main support frame 1 and auxiliary moving wheels 2, as well as an internal visual auxiliary suction mechanism 4, a gastric fluid suction mechanism 5 and a gastric fluid automatic dispensing mechanism 6. The auxiliary moving wheels 2 are connected to the bottom of the main support frame 1, the internal visual auxiliary suction mechanism 4 is connected to the top of the main support frame 1, the gastric fluid suction mechanism 5 is connected to the middle of the internal visual auxiliary suction mechanism 4, and the gastric fluid automatic dispensing mechanism 6 is connected inside the internal visual auxiliary suction mechanism 4.

[0056] The endoscopic auxiliary aspiration mechanism 4 includes a gastric fluid aspiration box 7, a box-sealed door 8, a universal base 9, an endoscopic monitor 10, and a gastric endoscopic component. The gastric fluid aspiration box 7 is fixedly connected to the top surface of the main support frame 1. The box-sealed door 8 is slidably provided on the surface of the gastric fluid aspiration box 7. The universal base 9 is fixedly connected to the top surface of the gastric fluid aspiration box 7. The endoscopic monitor 10 is hinged to the top surface of the universal base 9.

[0057] The bovine gastric fluid negative pressure extraction device and control system provided by this utility model uses an internal auxiliary suction mechanism 4 to assist the gastric fluid extraction mechanism 5 in extracting bovine gastric fluid. After the gastric fluid inlet tube 16 enters the bovine stomach, the position of the gastric fluid and the relative position of the front end of the gastric fluid inlet tube 16 to the gastric fluid can be observed in real time through the internal camera 12. In this way, the gastric fluid inlet tube 16 can be directly inserted into the gastric fluid to achieve precise extraction.

[0058] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0059] Example 1:

[0060] Please refer to Figures 2-8 A negative pressure extraction device and control system for bovine gastric juice includes a main support frame 1 and auxiliary moving wheels 2, and also includes an internal auxiliary suction mechanism 4, a gastric juice suction mechanism 5 and an automatic gastric juice dispensing mechanism 6. The auxiliary moving wheels 2 are connected to the bottom of the main support frame 1, the internal auxiliary suction mechanism 4 is connected to the top of the main support frame 1, the gastric juice suction mechanism 5 is connected to the middle of the internal auxiliary suction mechanism 4, and the automatic gastric juice dispensing mechanism 6 is connected inside the internal auxiliary suction mechanism 4.

[0061] The endoscopic auxiliary aspiration mechanism 4 includes a gastric fluid aspiration box 7, a box-sealed door 8, a universal base 9, an endoscopic monitor 10, and a gastric endoscopic component. The gastric fluid aspiration box 7 is fixedly connected to the top surface of the main support frame 1. The box-sealed door 8 is slidably provided on the surface of the gastric fluid aspiration box 7. The universal base 9 is fixedly connected to the top surface of the gastric fluid aspiration box 7. The endoscopic monitor 10 is hinged to the top surface of the universal base 9.

[0062] Specifically, the gastric endoscopy assembly includes a display data export line 11, an endoscopy camera 12, and an LED lighting fixture 13. The display data export line 11 is fixedly connected to the middle of the endoscope 10, and the endoscope camera 12 is fixedly connected to the end of the display data export line 11 away from the endoscope 10. The LED lighting fixture 13 is fixedly connected to the surface of the endoscope camera 12.

[0063] Specifically, the gastric fluid aspiration mechanism 5 includes a negative pressure aspiration pump 14, a rigid inlet pipe 15, a gastric fluid inlet hose 16, a front-end filter head 17, a data cable positioning ring 18, a gastric fluid discard component, and a gastric fluid retention input component. The negative pressure aspiration pump 14 is fixedly connected to the middle of the gastric fluid aspiration box 7. The input pipe of the negative pressure aspiration pump 14 is fixedly connected to the rigid inlet pipe 15. One end of the rigid inlet pipe 15 away from the negative pressure aspiration pump 14 extends to the outside of the gastric fluid aspiration box 7. The gastric fluid inlet hose 16 is fixedly connected to the end of the rigid inlet pipe 15 away from the negative pressure aspiration pump 14. The front-end filter head 17 is fixedly connected to the end of the gastric fluid inlet hose 16 away from the rigid inlet pipe 15. The data cable positioning ring 18 is fixedly connected to the surface of the gastric fluid inlet hose 16. The display data output cable 11 is snapped into the middle of the data cable positioning ring 18.

[0064] Specifically, the gastric fluid disposal assembly includes an external fluid guide tube 19 and a first solenoid valve 20. The external fluid guide tube 19 is fixedly connected to the surface of the rigid inlet pipe 15, and the first solenoid valve 20 is fixedly connected to the middle of the external fluid guide tube 19.

[0065] Specifically, the gastric fluid retention inlet tube includes an internal support top frame 21, an inner guide tube 22, a second solenoid valve 23, and a gastric fluid outlet tube 24. The internal support top frame 21 is fixedly connected to the top surface of the inner wall of the gastric fluid suction box 7. The inner guide tube 22 is fixedly connected to the middle of the internal support top frame 21. One end of the inner guide tube 22 is fixedly connected to the output end of the negative pressure suction pump 14. The second solenoid valve 23 is fixedly connected to the middle of the inner guide tube 22. The gastric fluid outlet tube 24 is fixedly connected to the surface of the inner guide tube 22.

[0066] With the above structural design, when using the device, the display data export line 11 is fixed to the surface of the gastric fluid inlet tube 16 via the data line positioning ring 18, and the endoscope 12 is fixed to the surface of the front filter head 17. After completion, the front filter head 17 and the gastric fluid inlet tube 16 are inserted into the cow's stomach through the esophagus. After the gastric fluid inlet tube 16 and the front filter head 17 enter the cow's stomach, the video information of the stone expulsion from the endoscope 12 is transmitted to the endoscope monitor 10 through the display data export line 11. The real-time image captured by the endoscope monitor 10 shows the liquid in the cow's stomach through the front filter head 17. Turn on the negative pressure suction pump 14, and the internal auxiliary suction mechanism 4 will draw gastric juice from the stomach through the gastric juice inlet tube 16. Before the gastric juice is drawn out, it is first filtered through the front filter head 17. At this time, the first solenoid valve 20 is opened and the second solenoid valve 23 is closed. At this time, the gastric juice enters the negative pressure suction pump 14 through the rigid inlet tube 15, and then is discharged to the outside through the outer liquid guide tube 19. After observing that the gastric juice discharged from the outer liquid guide tube 19 is normal, the first solenoid valve 20 is closed and the second solenoid valve 23 is opened. At this time, the gastric juice enters the interior of the inner liquid guide tube 22 through the negative pressure suction pump 14, thereby completing the negative pressure suction of the bovine gastric juice.

[0067] Example 2:

[0068] The negative pressure extraction device and control system for bovine gastric fluid provided in Example 1 have been further optimized, specifically, as follows: Figures 9-12 As shown, the automatic gastric fluid dispensing mechanism 6 includes a servo motor 25, a motor drive shaft 26, a transmission gear 27, a dispensing assembly, and a pipeline closure assembly. The servo motor 25 is fixedly connected to the middle of the gastric fluid aspiration box 7. The output end of the servo motor 25 is driven by the motor drive shaft 26. The end of the motor drive shaft 26 away from the servo motor 25 is fixedly connected to the transmission gear 27.

[0069] Specifically, the dispensing assembly includes a bottom flower-shaped convex plate 28, a central rotating shaft 29, a top flower-shaped convex plate 30, an external transmission gear ring 31, a storage bottle holder 33, a pressure sensor 34, and a gastric fluid storage bottle 35. The bottom flower-shaped convex plate 28 is fixedly connected to the center of the gastric fluid aspiration box 7. The central rotating shaft 29 is movably connected to the center of the bottom flower-shaped convex plate 28. The top flower-shaped convex plate 30 is fixedly connected to the surface of the central rotating shaft 29. The specific facet of the top flower-shaped convex plate 30 is connected to the bottom flower-shaped convex plate 28. The top surface contacts the outer periphery of the top flower-shaped convex disk 30, which is fixedly connected to an external transmission gear ring 31. The external transmission gear ring 31 meshes with the transmission gear 27. The end of the central rotating shaft 29 away from the bottom flower-shaped convex disk 28 is fixedly connected to a liquid storage bottle positioning disk 32. The middle part of the liquid storage bottle positioning disk 32 is fixedly connected to six liquid storage bottle fixing brackets 33 in a circular array. The middle part of the six liquid storage bottle fixing brackets 33 is fixedly connected to pressure sensors 34 respectively. A gastric fluid storage bottle 35 is movably arranged in the middle of the liquid storage bottle fixing bracket 33.

[0070] Specifically, the pipeline closure assembly includes a connecting rod 36, a lifting guide rod 37, a switching chamber 38, a piston 40, and a PLC controller 41. The connecting rod 36 is fixedly connected to the surface of the central rotating shaft 29. The lifting guide rod 37 is fixedly connected to the end of the connecting rod 36 away from the central rotating shaft 29. The switching chamber 38 is fixedly connected to the middle of the inner fluid guide tube 22. The piston 40 is fixedly connected to the end of the lifting guide rod 37 away from the connecting rod 36. The piston 40 is slidably connected to the inner wall of the switching chamber 38. The PLC controller 41 is fixedly connected to the top surface of the gastric fluid aspiration box 7.

[0071] Through the above structural design, gastric juice enters the inner guide tube 22 and is discharged from the gastric juice outlet tube 24. The gastric juice discharged from the gastric juice outlet tube 24 enters the gastric juice storage bottle 35. As the gastric juice inside the gastric juice storage bottle 35 increases, the pressure sensor 34 transmits the real-time pressure to the PLC controller 41. When the pressure reaches the preset value, the PLC controller 41 controls the servo motor 25 to start. The servo motor 25 drives the transmission gear 27 to rotate through the motor transmission shaft 26. The rotation of the transmission gear 27 drives the external transmission gear ring 31 to rotate. The external transmission gear ring 31 drives the top flower-shaped convex plate 30 to rotate. After the lowest point of the bottom surface of the top surface of the bottom flower-shaped convex plate 28 contacts the lowest point of the top surface of the gastric juice outlet tube 24, it is pulled out of the gastric juice storage bottle 35. At the same time, the central rotating shaft 29 rotates, driving the connecting rod 36 to descend. As rod 36 descends, piston 40 is pulled down via lifting guide rod 37. After piston 40 descends, it blocks the middle of inner fluid guide tube 22, stopping the flow of gastric juice. At this time, the top flower-shaped convex plate 30 continues to rotate. After the lowest point of the bottom surface of the top flower-shaped convex plate 30 contacts the highest point of the top surface of the bottom flower-shaped convex plate 28, the next gastric juice storage bottle 35 is below the gastric juice outlet tube 24. At the same time, lifting guide rod 37 pushes the switching chamber 38 to rise in the middle of piston 40 to stop blocking the inner fluid guide tube 22. When servo motor 25 rotates 60 degrees, PLC controller 41 controls servo motor 25 to turn off, thus completing the automatic switching of gastric juice storage bottle 35. When all six pressure sensors 34 reach the preset pressure value, PLC controller 41 controls negative pressure suction pump 14 to automatically turn off, thus completing negative pressure suction of gastric juice.

Claims

1. A negative pressure extraction device for bovine gastric fluid, comprising a main support frame (1) and auxiliary moving wheels (2), characterized in that; It also includes an endoscopic auxiliary aspiration mechanism (4), a gastric fluid aspiration mechanism (5) and a gastric fluid automatic dispensing mechanism (6). The bottom of the main support frame (1) is connected to an auxiliary moving wheel (2). The top of the main support frame (1) is connected to the endoscopic auxiliary aspiration mechanism (4). The middle part of the endoscopic auxiliary aspiration mechanism (4) is connected to the gastric fluid aspiration mechanism (5). The inside of the endoscopic auxiliary aspiration mechanism (4) is connected to the gastric fluid automatic dispensing mechanism (6). The endoscopic auxiliary aspiration mechanism (4) includes a gastric fluid aspiration box (7), a box-sealed door (8), a universal base (9), an endoscopic monitor (10), and a gastric endoscopic component. The gastric fluid aspiration box (7) is fixedly connected to the top surface of the main support frame (1). The box-sealed door (8) is slidably provided on the surface of the gastric fluid aspiration box (7). The universal base (9) is fixedly connected to the top surface of the gastric fluid aspiration box (7). The endoscopic monitor (10) is hinged to the top surface of the universal base (9).

2. The negative pressure extraction device for bovine gastric fluid according to claim 1, characterized in that, The gastric endoscope assembly includes a display data export line (11), an endoscope camera (12), and an LED lighting fixture (13). The display data export line (11) is fixedly connected to the middle of the endoscope display (10). The end of the display data export line (11) away from the endoscope display (10) is fixedly connected to the endoscope camera (12). The LED lighting fixture (13) is fixedly connected to the surface of the endoscope camera (12).

3. The negative pressure extraction device for bovine gastric fluid according to claim 2, characterized in that, The gastric fluid aspiration mechanism (5) includes a negative pressure aspiration pump (14), a rigid inlet pipe (15), a gastric fluid inlet hose (16), a front-end filter head (17), a data cable positioning ring (18), a gastric fluid discard component, and a gastric fluid retention inlet component. The negative pressure aspiration pump (14) is fixedly connected to the middle of the gastric fluid aspiration box (7). The input pipe of the negative pressure aspiration pump (14) is fixedly connected to the rigid inlet pipe (15). The rigid inlet pipe (15) is located away from the negative pressure aspiration pump (14). One end extends to the outside of the gastric fluid suction box (7). The end of the rigid inlet pipe (15) away from the negative pressure suction pump (14) is fixedly connected to the gastric fluid inlet hose (16). The end of the gastric fluid inlet hose (16) away from the rigid inlet pipe (15) is fixedly connected to the front filter head (17). The surface of the gastric fluid inlet hose (16) is fixedly connected to the data line positioning ring (18). The middle of the data line positioning ring (18) is snapped with the display data output line (11).

4. The bovine gastric fluid negative pressure extraction device according to claim 3, characterized in that, The gastric fluid discarding assembly includes an external fluid guide tube (19) and a first solenoid valve (20). The external fluid guide tube (19) is fixedly connected to the surface of the rigid inlet pipe (15), and the first solenoid valve (20) is fixedly connected to the middle of the external fluid guide tube (19).

5. The negative pressure extraction device for bovine gastric fluid according to claim 4, characterized in that, The gastric fluid retention inlet tube includes an internal support top frame (21), an inner guide tube (22), a second solenoid valve (23), and a gastric fluid outlet tube (24). The internal support top frame (21) is fixedly connected to the top surface of the inner wall of the gastric fluid suction box (7). The inner guide tube (22) is fixedly connected to the middle part of the internal support top frame (21). One end of the inner guide tube (22) is fixedly connected to the output end of the negative pressure suction pump (14). The second solenoid valve (23) is fixedly connected to the middle part of the inner guide tube (22). The gastric fluid outlet tube (24) is fixedly connected to the surface of the inner guide tube (22).

6. The bovine gastric fluid negative pressure extraction device according to claim 5, characterized in that, The automatic gastric fluid dispensing mechanism (6) includes a servo motor (25), a motor drive shaft (26), a transmission gear (27), a dispensing assembly, and a pipeline closure assembly. The servo motor (25) is fixedly connected to the middle of the gastric fluid suction box (7). The output end of the servo motor (25) is driven by the motor drive shaft (26). The end of the motor drive shaft (26) away from the servo motor (25) is fixedly connected to the transmission gear (27).

7. The bovine gastric fluid negative pressure extraction device according to claim 6, characterized in that, The dispensing assembly includes a bottom flower-shaped convex plate (28), a central rotating shaft (29), a top flower-shaped convex plate (30), an external transmission gear ring (31), a storage bottle positioning plate (32), a storage bottle fixing bracket (33), a pressure sensor (34), and a gastric fluid storage bottle (35). The bottom flower-shaped convex plate (28) is fixedly connected to the middle of the gastric fluid suction box (7), and the central rotating shaft (29) is movably connected to the middle of the bottom flower-shaped convex plate (28). A top flower-shaped cam (30) is fixedly connected to the surface of the rotating shaft (29). A certain face of the top flower-shaped cam (30) contacts the top face of the bottom flower-shaped cam (28). An external transmission gear ring (31) is fixedly connected to the outer periphery of the top flower-shaped cam (30). The external transmission gear ring (31) meshes with the transmission gear (27). A liquid storage bottle positioning plate (32) is fixedly connected to the end of the central rotating shaft (29) away from the bottom flower-shaped cam (28).

8. The bovine gastric fluid negative pressure extraction device according to claim 7, characterized in that, The middle part of the liquid storage bottle positioning plate (32) is fixedly connected with six liquid storage bottle fixing brackets (33) in a circular array. The middle part of each of the six liquid storage bottle fixing brackets (33) is fixedly connected with a pressure sensor (34). A gastric fluid storage bottle (35) is movably arranged in the middle of the liquid storage bottle fixing bracket (33).

9. The bovine gastric fluid negative pressure extraction device according to claim 8, characterized in that, The pipeline closure assembly includes a connecting rod (36), a lifting guide rod (37), a switching chamber (38), a piston (40), and a PLC controller (41). The connecting rod (36) is fixedly connected to the surface of the central rotating shaft (29). The lifting guide rod (37) is fixedly connected to the end of the connecting rod (36) away from the central rotating shaft (29). The switching chamber (38) is fixedly connected to the middle of the inner liquid guide tube (22). The piston (40) is fixedly connected to the end of the lifting guide rod (37) away from the connecting rod (36). The piston (40) is slidably connected to the inner wall of the switching chamber (38). The PLC controller (41) is fixedly connected to the top surface of the gastric fluid aspiration box (7).

10. A negative pressure extraction and control system for bovine gastric fluid, characterized in that, Includes at least one of the bovine gastric fluid negative pressure extraction devices as described in any one of claims 1-9; PLC controller: The PLC can receive signals from the first solenoid valve, the second solenoid valve and the pressure sensor input device, and execute corresponding control actions based on these inputs. It can also receive signals from the remote control system. Remote control system: The remote control system can be used to remotely send control signals to the negative pressure suction pump and PLC controller and control the opening and closing of the negative pressure suction pump, the first solenoid valve and the second solenoid valve; Negative pressure suction pump: By working with a rigid inlet tube and a gastric fluid inlet hose, a negative pressure suction pump is used to suction out the fluid from the cow's stomach; Servo motor: The positioning plate can be driven to rotate the gastric juice storage bottle by the servo motor, and the gastric juice storage bottle below the gastric juice outlet tube can be switched. Pressure sensor: After the gastric juice enters the gastric juice storage bottle, the pressure sensor transmits the pressure signal to the PLC controller, which can monitor the weight of the gastric juice stored inside the gastric juice storage bottle in real time. First solenoid valve: controls the opening and closing of the external liquid guide tube; The second solenoid valve controls the opening and closing of the inner liquid guide tube.

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