Animal automatic quantitative intragastric administration device for pharmacological experiment of traditional Chinese medicine

Abstract

The invention belongs to the technical field of experiment auxiliary devices, and discloses an animal automatic quantitative intragastric administration device for traditional Chinese medicine pharmacological experiments, which comprises a base, a fixed table and an electric control rod I are arranged at the top of the base, a mounting block is arranged at the top of the electric control rod I, and an electric push rod and a detachably connected intragastric syringe are arranged on the side surface of the mounting block. The mounting block and the fixing table are each provided with a quantifying assembly, each quantifying assembly comprises a quantifying plate, a starting plate and an end plate which are fixedly connected through a spring are slidably clamped to the two ends of the side face of each quantifying plate, the bottom of the electric push rod abuts against the top of the starting plate located on the mounting block, and the gavage syringe is detachably connected with a pressing rod abutting against the starting plate in the fixing table. And the quantifying plate and the fixed table are provided with scale marks. The device not only can accurately quantify and automatically perform intragastric administration, but also can accurately control the insertion depth of the intragastric needle, and is suitable for animal models of different body types.

Description

Technical Field

[0001] The present invention relates to the technical field of experimental auxiliary devices, and more specifically, to an automatic quantitative gastric administration device for animals used in traditional Chinese medicine pharmacology experiments. Background Art

[0002] Traditional Chinese Medicine Pharmacology Experiments is a course guided by traditional Chinese medicine pharmacology theory and uses animal experimental methods to verify and study the interactions and mechanisms between drugs / traditional Chinese medicines and the body. As an experimentally based bridge between modern medicine and traditional Chinese medicine, the cultivation of practical skills is an indispensable component of traditional Chinese medicine pharmacology teaching.

[0003] In traditional Chinese medicine pharmacology experiments, rats and mice are typically used as animal models. However, conventional rat and mouse gavage delivery devices have a relatively simple external structure, requiring one hand to hold the rat or mouse still while the other hand pushes the syringe. This places high demands on the operator, and the device cannot achieve precise dosing or accurately control the insertion depth of the gavage needle. Furthermore, in addition to rats and mice, other animal models include rabbits and dogs. Existing devices are designed for a single animal model and cannot accommodate multiple animal models simultaneously.

[0004] Therefore, the present invention provides an automatic quantitative gavage drug delivery device for animals used in traditional Chinese medicine pharmacology experiments. Summary of the Invention

[0005] The present invention provides an automatic quantitative gavage drug administration device for animals used in traditional Chinese medicine pharmacology experiments, so as to solve the technical problems that the gavage devices in the prior art cannot achieve accurate quantitative gavage drug administration and cannot accurately control the insertion depth of the gavage needle.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] An automatic quantitative gavage drug administration device for animals used in traditional Chinese medicine pharmacology experiments comprises a base, a fixed platform and an electric control rod are provided on the top of the base, a mounting block is provided on the top of the electric control rod, an electric push rod and a detachably connected gavage syringe are provided on the side of the mounting block, the mounting block and the fixed platform are both provided with a quantitative component, the quantitative component comprises a quantitative plate, a starting plate and an end plate fixedly connected by a spring are provided on the sliding cards at both ends of the side of the quantitative plate, the bottom of the electric push rod is abutted against the top of the starting plate located on the mounting block, the gavage syringe is detachably connected to a pressure rod abutting against the starting plate in the fixed platform, and the quantitative plate and the fixed platform are both provided with scale lines.

[0008] Principle of the technical solution: Fix the mouse / rat that needs to be gavage on a fixed table so that the body of the mouse / rat is perpendicular to the top of the base. Fix the gavage syringe filled with liquid medicine on the mounting block so that the gavage needle of the gavage syringe is flush with the edge of the mouse / rat's mouth, and then make the bottom of the electric push rod touch the top of the gavage syringe; read the depth to which the syringe needs to be inserted using the scale line on the fixed table; the pressure rod touches the top of the starting plate located in the fixed table, slide the end plate upward so that the distance between the starting plate and the end plate is the insertion depth, and fix the position of the end plate. Move the mounting block downward to drive the gavage needle for insertion. When the starting plate cannot move, stop the insertion so that the insertion depth of the gavage needle can be precisely controlled. The animal drug dosage is obtained according to the weight of the mouse / rat, and the movement distance of the electric push rod is determined; the bottom of the electric push rod is against the top of the start plate located in the mounting block. Similarly, the end plate is slid upward so that the distance between the start plate and the end plate is the movement distance of the electric push rod. Starting the electric push rod can perform automatic gavage. When the start plate and the end plate are against each other, gavage is stopped to achieve automatic quantitative drug administration.

[0009] Preferably, a slide plate 1 is provided on the top of the base, and a flip assembly is provided between the slide plate 1 and the fixed platform, and the flip assembly includes a connecting rod 1 and a link rod 1 that are mirror images of each other, and a connecting rod 2 and a link rod 2 that are mirror images of each other, one end of the connecting rod 1 and the connecting rod 2 are symmetrically rotated and clamped on both sides of the fixed platform, and one end of the link rod 1 and the link rod 2 are symmetrically rotated and clamped on both sides of the slide plate 1; the other end of the connecting rod 1 located on the same side is rotatably connected to the other end of the link rod 2, and the other end of the connecting rod 2 located on the same side is rotatably connected to the other end of the link rod 1; the middle part of the link rod 2 is rotatably connected to the middle part of the connecting rod 2.

[0010] Preferably, a limiting ridge is provided at one end of the fixed platform, a limiting groove is provided on the top of the slide plate 1 that matches the limiting ridge, a weight scale is embedded in the fixed platform, and sliders 3 are provided at the four corners of the top of the fixed platform, and the sliders 3 are slidably engaged with the fixed platform.

[0011] Preferably, the electric push rod is slidably connected to the mounting block through a threaded rod, the mounting block is slidably connected to a symmetrically arranged fixed block through a threaded rod, the gavage syringe is detachably connected to the mounting block through the fixed block, and the opposing surfaces of the two fixed blocks are provided with several anti-slip strips in the horizontal direction.

[0012] Preferably, the top of the base is slidably connected to slider one and slider two along two mutually perpendicular directions of the horizontal plane through a threaded rod, and slider one is slidably connected to slider one along the sliding direction of slider two, and slider one is slidably connected to slider two along the sliding direction of slider one.

[0013] Preferably, the quantitative plate is slidably connected to the mounting plate and the fixing platform respectively.

[0014] Preferably, an electric control rod 2 is vertically provided on the top of the electric control rod 1, a mounting plate is provided at the fixed end of the electric control rod 2, a slide plate 2 is provided at the movable end of the electric control rod 2 for sliding engagement with the mounting plate, one side of the slide plate 2 is rotatably engaged with the mounting block via a rotating shaft, a limit plate is fixedly provided on the other side of the slide plate 2 via a rotating shaft, the mounting plate is provided with a limit sliding hole for sliding of the slide plate 2, and the mounting plate is rotatably engaged with a limit slot for sliding of the limit plate.

[0015] Preferably, when the slide plate 2 is located at both ends of the limiting sliding hole, the gavage syringe is in a horizontal and vertical state respectively.

[0016] Preferably, the slider 2 is connected to the gear 1 through the rotating shaft, the gear 1 is engaged with the gear 2 which is rotatably connected to the slider 2, the gear 2 is fixedly connected to the mounting block, and when the slider 2 is away from the electric control lever 1, the gavage syringe is in a vertical state.

[0017] Preferably, the side of the base is movably installed with a fixing component, the fixing component includes a mounting seat, the top of the mounting seat is symmetrically provided with a sliding seat that is slidably connected to the mounting seat through a threaded rod, and the top of the sliding seat is provided with a fixing plate that is slidably connected to the sliding seat through a threaded rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention uses a flip assembly and a built-in weight scale on the fixed platform, which not only makes it convenient for operators to fix mice / rats, but also can record the weight of the experimental animal model in real time, making it easy to calculate the dosage of the gavage drug solution required for the experimental animal model.

[0020] 2. The present invention combines a quantitative component with an electric push rod and an electric control rod. The depth to which the gavage needle needs to be inserted is read through the scale line on the fixed platform, and then the position of the end plate is gradually adjusted by sliding quantitatively, shortening the distance between the start plate and the end plate, so that the distance between the end plate and the start plate is consistent with the insertion depth of the gavage needle. The bottom of the pressure rod is kept flush with the bottom of the gavage needle while being against the start plate. Starting the electric control rod allows the gavage needle to be gently inserted into the animal's mouth and enter the stomach along the esophagus; until the start plate and the end plate are against each other, the insertion of the gavage needle is stopped, and the accuracy of the gavage needle can be accurately controlled. Based on the same principle, the quantitative component is used to control the electric push rod to control the injection pump to slowly inject the liquid medicine into the stomach.

[0021] 3. The present invention is also suitable for large animal models, such as rabbits and dogs. By controlling the electric control lever, the slide plate can be driven to slide left and right. The sliding slide plate drives one end of the limit plate to slide left and right. Under the limiting action of the limit slot, the limit plate can be driven to rotate back and forth and slide back and forth along the limit slot, thereby driving the mounting block to rotate back and forth, thereby achieving the purpose of adjusting the angle of the vertical gavage syringe. This prevents the hose connected to the vertical gavage syringe from bending, which would affect the drug solution from entering the stomach of the animal model during gavage, and even prevent the hose from being blocked and the local pressure inside the hose from being too high, which would affect the insertion depth of the hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of a front view of an automatic quantitative intragastric drug administration device for animals used in traditional Chinese medicine pharmacology experiments;

[0023] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0024] Figure 3 This is a schematic diagram of the partial structure of an automatic quantitative gavage drug delivery device for animals used in traditional Chinese medicine pharmacology experiments;

[0025] Figure 4 This is a top view of the partial structure of an automatic quantitative gavage drug delivery device for animals used in traditional Chinese medicine pharmacology experiments;

[0026] Figure 5 This is a schematic diagram of the structure of the quantitative component of an automatic quantitative gavage drug delivery device for animals used in traditional Chinese medicine pharmacology experiments.

[0027] The reference numerals in the drawings of the specification include:

[0028] 1. Base; 2. Mounting block; 3. Fixing table; 4. Electric control lever 1; 5. Electric push rod; 6. Gavage syringe; 7. Dosing plate; 8. Start plate; 9. End plate; 10. Scale line; 11. Slide plate 1; 12. Connecting rod 1; 13. Connecting rod 2; 14. Connecting rod 1; 15. Connecting rod 2; 16. Limiting ridge; 17. Limiting groove; 18. Weight scale; 19. Slider 3; 20. Slider 1; 21. Slider 2; 22. Fixing block; 23. Anti-slip strip; 24. Electric control lever 2; 25. Mounting plate; 26. Slide plate 2; 27. Limiting plate; 28. Limiting slide hole; 29. Limiting slot; 30. Gear 1; 31. Gear 2; 32. Mounting seat; 33. Slider; 34. Fixing plate; 35. Press rod. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0030] Example

[0031] like Figures 1 to 5 As shown, an automatic quantitative gavage drug administration device for animals used in traditional Chinese medicine pharmacology experiments includes a base 1 and a mounting block 2. The top of the base 1 is provided with a fixed platform 3 and an electric control rod 4. The mounting block 2 is located above the fixed platform 3 through the electric control rod 4. The side of the mounting block 2 is provided with an electric push rod 5 and a gavage syringe 6 from top to bottom. The electric push rod 5 can move up and down along the mounting block 2 through a threaded rod embedded in the mounting block 2. The gavage syringe 6 is detachably connected to the mounting block 2. The sides of the mounting block 2 and the fixed platform 3 are both provided with grooves, and a quantitative component is slidably connected in the groove. The quantitative component includes a quantitative plate 7 slidably clamped in the groove. The two ends of the side of the quantitative plate 7 are slidably clamped with a start plate 8 and an end plate 9. The start plate 8 and the end plate 9 are fixedly connected by a spring. The bottom of the electric push rod 5 is against the top of the start plate 8 located on the mounting block 2. The gavage syringe 6 is detachably connected to a pressure rod 35 that is against the start plate 8 in the fixed platform 3. The bottom of the pressure rod 35 is flush with the bottom horizontal plane of the gavage needle in the gavage syringe 6; the quantitative plate 7 and the fixed platform 3 are both provided with scale lines 10.

[0032] As a preferred embodiment of the above technical solution, to facilitate the fixation of mice / rats and the insertion of gavage needles, a slide 11 is provided on the top of the base 1 of the present invention. A flip assembly is provided between slide 11 and the fixed platform 3. The flip assembly includes a connecting rod 12 and a connecting rod 14, which are arranged in mirror images of each other, and a connecting rod 2 13 and a connecting rod 2 15, which are arranged in mirror images of each other. One end of each connecting rod 12 and connecting rod 2 13 is symmetrically pivotally mounted on either side of the fixed platform 3, while one end of each connecting rod 14 and connecting rod 2 15 is symmetrically pivotally mounted on either side of slide 11. The other end of connecting rod 12 on the same side is pivotally connected to the other end of connecting rod 2 15, and the other end of connecting rod 2 13 on the same side is pivotally connected to the other end of connecting rod 14. The middle portion of connecting rod 2 15 is pivotally connected to the middle portion of connecting rod 2 13. When fixing mice / rats, the fixing platform 3 is set horizontally, which makes it convenient for the experimenter to fix the animal model; with the assistance of connecting rod 12, connecting rod 2 13, connecting rod 1 14 and connecting rod 2 15, the fixing platform 3 can be flipped so that the fixing platform 3 is vertically located above slide 11, so that the esophagus of the animal model coincides with the center line of the gavage syringe 6, thereby facilitating the smooth insertion of the gavage needle into the stomach of the animal model, thereby preventing the gavage needle from accidentally entering the respiratory system, causing pulmonary edema or even death.

[0033] As a preferred embodiment of the above technical solution, to ensure that the fixing platform 3 is accurately positioned at a 90-degree tilt angle, facilitate the determination of the dosage of the gavage solution for the animal model, and facilitate the fixation of mice / rats of different sizes, a retaining ridge 16 is provided at one end of the fixing platform 3, and a retaining groove 17 is provided on the top of the slide 11, which is compatible with the retaining ridge 16. A weight scale 18 is embedded in the fixing platform 3, and sliders 19 are installed at the four corners of the top of the fixing platform 3. Sliders 19 19 are slidably engaged with the fixing platform 3 through damping material. Straps (not shown) attached to the sliders 19 can be used to fix mice of different sizes.

[0034] As a preferred solution of the above technical solution, in order to make the center line of the esophagus of mice / rats of different sizes coincide with the center line of the gavage syringe 6, the top of the base 1 is connected to a slider 1 20 in the front-to-back sliding direction through a threaded rod, and is connected to a slider 2 21 in the left-to-right sliding direction. Slide plate 11 is connected to the left-to-right sliding direction of slider 1 20 through the slide groove of slider 1 20, and slide plate 11 is connected to the front-to-back sliding direction of slider 2 21 through the guide rod of slider 2.

[0035] As a preferred solution of the above technical solution, it is suitable for gavage syringes 6 of different models. The gavage syringe 6 is detachably fixedly connected to the mounting block 2 through two symmetrically arranged fixing blocks 22. The fixing block 22 is slidably engaged with the mounting block 2 left and right through the threaded rod in the mounting block 2. The opposite surfaces of the two fixing blocks 22 are provided with a number of anti-slip strips 23 in the horizontal direction to prevent the body of the gavage syringe 6 from moving when the electric push rod 5 pushes the piston of the gavage syringe 6 to move; by adjusting the distance between the two fixing blocks 22, it can be used to fix gavage syringes 6 of different models. It should also be noted here that the gavage needle installed on the gavage syringe 6 is detachably connected, and a suitable gavage needle can be selected according to the size of the gavage animal.

[0036] As a preferred solution of the above technical solution, it is suitable for animal models of larger size, such as rabbits and dogs. Due to their large size, the esophagus of the fixed animal model is in a horizontal state. For the above-mentioned dynamic model, the gavage needle of the gavage syringe 6 needs to be replaced with a hose. The gavage syringe 6 set in a vertical state is prone to bending of the hose, which in turn affects the entry of the drug solution into the stomach of the animal model during gavage. The hose may even be blocked and the local pressure inside the hose may be too high, affecting the insertion depth of the hose. An electric control rod 2 24 is vertically provided on the top of the electric control rod 1 4, and a mounting plate 25 is provided at the fixed end of the electric control rod 2 24, and a slide plate 26 slidably engaged with the mounting plate 25 is provided at the movable end of the electric control rod 2 24, and one side of the slide plate 26 is rotatably engaged with the mounting block 2 through a rotating shaft, and a limit plate 27 is fixed to the other side of the slide plate 26 through a rotating shaft, and the slide plate 26 is slidably connected to the mounting plate 25 along the limit sliding hole 28 in the mounting plate 25 through the rotating shaft, and the mounting plate 25 is rotatably engaged with a limit slot 29 for the limit plate 27 to slide.

[0037] By starting the electric control lever 24, the electric control lever 24 can drive the slide plate 26 to slide left and right. The sliding slide plate 26 drives one end of the limit plate 27 to slide left and right. Under the limiting action of the limit slot 29, the limit plate 27 can be driven to rotate back and forth and slide back and forth along the limit slot 29, thereby driving the mounting block 2 to rotate back and forth, thereby achieving the purpose of adjusting the angle of the gavage syringe 6 in the vertical direction to make it suitable for large-sized animal models.

[0038] As a preferred embodiment of the above technical solution, to ensure that the gavage syringe 6 can be quickly adjusted to a horizontal or vertical position, the centers of the circles at the ends of the limit slide 28 and the central axis of rotation of the limit slot 29 are coplanar, forming an isosceles right triangle. This ensures that when the rotation axis is located at the ends of the limit slide 28, the gavage syringe 6 is in the horizontal and vertical positions, respectively.

[0039] As a preferred embodiment of the above technical solution, to facilitate operation by the experimenter, slider 2 21 is rotatably engaged with gear 1 30 via a rotating shaft. Gear 1 30 meshes with gear 2 31, which is rotatably engaged with slider 2 26. Gear 2 31 is fixedly connected to mounting block 2. When slider 2 26 is away from electric control lever 1 4, gavage syringe 6 is positioned vertically.

[0040] As a preferred solution of the above technical solution, in order to further be applicable to animal models of larger sizes, the present invention is also provided with a fixing component, which includes a mounting seat 32, a sliding seat 33 symmetrically provided on the top of the mounting seat 32 and slidably connected to the mounting seat 32 through a threaded rod, and a fixing plate 34 slidably connected to the slide 33 through a threaded rod on the top of the slide 33.

[0041] The specific usage of the above embodiment is as follows:

[0042] Place the mouse / rat that needs gavage on the fixed platform 3, fix its limbs, and flip the fixed platform 3 so that the body of the mouse / rat is perpendicular to the base 1. Fix the gavage syringe 6 filled with liquid medicine on the mounting block 2, adjust the height of the gavage syringe 6 so that the gavage needle of the gavage syringe 6 is flush with the edge of the mouse / rat's mouth, and then make the bottom of the electric push rod 5 touch the top of the gavage syringe 6; read the depth to which the syringe needs to be inserted through the scale line 10 on the fixed platform 3; the pressure rod 35 touches the top of the starting plate 8 located in the fixed platform 3, slide the end plate 9 upward so that the distance between the starting plate 8 and the end plate 9 is the insertion depth, and fix the position of the end plate 9. Move the mounting block 2 downward to drive the gavage needle to be inserted. When the starting plate 8 cannot move, stop the insertion so that the insertion depth of the gavage needle can be accurately controlled. The animal drug dosage is obtained according to the weight of the mouse / rat, and the moving distance of the electric push rod 5 is determined; the bottom of the electric push rod 5 is against the top of the starting plate 8 located in the mounting block 2. Similarly, the end plate 9 is slid upward so that the distance between the starting plate 8 and the end plate 9 is the moving distance of the electric push rod 5. Starting the electric push rod 5 can perform automatic gavage. When the starting plate 8 and the end plate 9 are against each other, the gavage is stopped to achieve automatic quantitative drug administration.

[0043] The above is only an embodiment of the present invention, and the common knowledge such as the specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. An automatic quantitative gavage drug delivery device for animals used in traditional Chinese medicine pharmacology experiments, comprising a base, characterized in that: A fixed platform and an electric control rod are provided on the top of the base, a mounting block is provided on the top of the electric control rod, an electric push rod and a detachably connected gavage syringe are provided on the side of the mounting block, the mounting block and the fixed platform are both provided with a quantitative component, the quantitative component includes a quantitative plate, and sliding cards at both ends of the side of the quantitative plate are provided with a start plate and an end plate fixedly connected by a spring, the bottom of the electric push rod is abutted against the top of the start plate located on the mounting block, the gavage syringe is detachably connected to a pressure rod abutting against the start plate in the fixed platform, and the quantitative plate and the fixed platform are both provided with scale lines.

2. The automatic quantitative gavage drug delivery device for animals used in traditional Chinese medicine pharmacology experiments according to claim 1, characterized in that: A slide plate 1 is provided on the top of the base, and a flip assembly is provided between the slide plate 1 and the fixed platform. The flip assembly includes a connecting rod 1 and a link rod 1 that are mirror images of each other, and a connecting rod 2 and a link rod 2 that are mirror images of each other. One ends of the connecting rod 1 and the connecting rod 2 are symmetrically rotated and clamped on both sides of the fixed platform, and one ends of the link rod 1 and the link rod 2 are symmetrically rotated and clamped on both sides of the slide plate 1; the other end of the connecting rod 1 located on the same side is rotatably connected to the other end of the link rod 2, and the other end of the connecting rod 2 located on the same side is rotatably connected to the other end of the link rod 1; the middle part of the link rod 2 is rotatably connected to the middle part of the connecting rod 2.

3. The automatic quantitative gavage drug delivery device for animals used in traditional Chinese medicine pharmacology experiments according to claim 2, characterized in that: One end of the fixed platform is provided with a limiting convex strip, the top of the slide plate is provided with a limiting groove adapted to the limiting convex strip, a weight scale is embedded in the fixed platform, and sliders three are provided at the four corners of the top of the fixed platform, and the sliders three are slidably engaged with the fixed platform.

4. The automatic quantitative gavage drug delivery device for animals used in traditional Chinese medicine pharmacology experiments according to claim 1, characterized in that: The electric push rod is slidably connected to the mounting block through a threaded rod, and the mounting block is slidably connected to a symmetrically arranged fixed block through a threaded rod. The gavage syringe is detachably connected to the mounting block through the fixed block, and the opposing surfaces of the two fixed blocks are provided with several anti-slip strips in the horizontal direction.

5. The automatic quantitative gavage drug delivery device for animals used in traditional Chinese medicine pharmacology experiments according to claim 4, characterized in that: The top of the base is slidably connected to slider 1 and slider 2 along two mutually perpendicular directions of the horizontal plane through a threaded rod. Slider 1 is slidably connected to slider 1 along the sliding direction of slider 2, and slider 1 is slidably connected to slider 2 along the sliding direction of slider 1.

6. The automatic quantitative gavage drug delivery device for animals used in traditional Chinese medicine pharmacology experiments according to claim 4 or 5, characterized in that: The quantitative plate is slidably connected to the mounting plate and the fixing platform respectively.

7. The automatic quantitative gavage drug delivery device for animals used in traditional Chinese medicine pharmacology experiments according to claim 1, characterized in that: An electric control lever 2 is vertically provided on the top of the electric control lever 1, and a mounting plate is provided at the fixed end of the electric control lever 2. A slide plate 2 is provided at the movable end of the electric control lever 2 for sliding engagement with the mounting plate. One side of the slide plate 2 is rotatably engaged with the mounting block via a rotating shaft, and a limit plate is fixedly provided on the other side of the slide plate 2 via a rotating shaft. The mounting plate is provided with a limit sliding hole for sliding the slide plate 2, and the mounting plate is rotatably engaged with a limit slot for sliding the limit plate.

8. The automatic quantitative gavage drug delivery device for animals used in traditional Chinese medicine pharmacology experiments according to claim 7, characterized in that: When the slide plate 2 is located at both ends of the limiting slide hole, the gavage syringe is in a horizontal state and a vertical state respectively.

9. The automatic quantitative gavage drug delivery device for animals used in traditional Chinese medicine pharmacology experiments according to claim 8, characterized in that: The slider 2 is connected to the gear 1 through the rotation of the rotating shaft, and the gear 1 is engaged with the gear 2 which is rotationally connected to the slider 2. The gear 2 is fixedly connected to the mounting block. When the slider 2 is away from the electric control lever 1, the gavage syringe is in a vertical state.

10. The automatic quantitative gavage drug delivery device for animals used in traditional Chinese medicine pharmacology experiments according to claim 9, characterized in that: The side of the base is movably installed with a fixing component, which includes a mounting seat. The top of the mounting seat is symmetrically provided with a sliding seat that is slidably connected to the mounting seat through a threaded rod, and the top of the sliding seat is provided with a fixing plate that is slidably connected to the sliding seat through a threaded rod.

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