Medicine dispensing equipment for medicine research
By employing a three-dimensional hybrid design and linkage mechanism, the problem of uneven mixing in pharmaceutical research equipment has been solved, achieving efficient and precise drug mixing, improving mixing uniformity and automation, and reducing energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-20
- Publication Date
- 2026-04-07
AI Technical Summary
Existing pharmaceutical research equipment has significant technical bottlenecks in terms of mixing efficiency, accuracy, and automation. In particular, it is prone to creating dead zones when dealing with powdered raw materials, resulting in uneven mixing and affecting the accuracy of experimental data.
The three-dimensional mixing design is adopted. Through the linkage of the lifting and rotating mechanism and the auxiliary flipping mechanism, the mixing tank can be moved up and down, rotated laterally and rotated longitudinally. Combined with the smooth spherical inner wall, it ensures that the raw materials are fully diffused and mixed evenly.
It achieves efficient and uniform drug mixing, reduces energy consumption, improves mixing accuracy and automation, and avoids mixing dead zones and cross-contamination.
Smart Images
Figure CN224086556U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of medicine dispensing, and particularly relates to a medicine dispensing equipment for medicine research. BACKGROUND
[0002] The accuracy, uniformity and cleanliness of the medicine dispensing link are extremely strict in medicine research, for example, in the clinical test stage of new drug research and development, the dispensing deviation may lead to experimental data distortion and affect the research and development progress; in the preparation process optimization, uneven mixing may directly lead to unbalanced distribution of active ingredients of the medicine, which cannot meet the quality standards. The current medicine dispensing equipment for medicine research is mostly in the mode of "traditional stirrer + manual assistance", which has significant technical bottlenecks in mixing efficiency, accuracy and automation, and cannot meet the fine requirements of modern medicine research.
[0003] The traditional medicine dispensing equipment mostly adopts single-direction stirring or simple shaking mixing, which cannot realize sufficient diffusion of raw materials, the rotating range of the paddle of the stirring type equipment is limited, and "dead angles" are easily formed in the inner wall, bottom and other areas of the tank, the raw materials are attached or accumulated, which leads to low mixing uniformity and cannot meet the requirements of medicine research; especially for the powdered raw materials, the problem of dead angles is more prominent, which easily leads to experimental errors. TECHNICAL SOLUTION
[0004] The utility model solves the above technical problems and provides a medicine dispensing equipment for medicine research.
[0005] To solve the above technical problems, the utility model provides the technical scheme as follows:
[0006] A medicine dispensing equipment for medicine research, comprising an equipment base, an equipment outer frame is arranged on the equipment base, a feeding top seat capable of feeding is arranged on the equipment outer frame, a threaded layer is arranged on the inner wall of the equipment outer frame, a lifting and rotating mechanism matched with the threaded layer is arranged in the equipment outer frame, a medicine dispensing and mixing tank capable of loading medicine is arranged in the lifting and rotating mechanism, the lifting and rotating mechanism can drive the medicine dispensing and mixing tank to move up and down and rotate horizontally when the lifting and rotating mechanism is started, an auxiliary overturning mechanism driven by the medicine dispensing and mixing tank to rotate horizontally is arranged in the equipment outer frame, and the auxiliary overturning mechanism can drive the medicine dispensing and mixing tank to rotate longitudinally while rotating horizontally.
[0007] As an improvement, the lifting and rotating mechanism comprises a moving block arranged correspondingly and having an outer end surface threadedly connected with the threaded layer, a bottom ring is arranged on the bottom of the moving block, a slide rail slidably connected with the moving block is arranged on the bottom ring, the bottom ring can drive the moving block to move up and down through the slide rail, a rotating column rotatably inserted with the moving block is arranged on the medicine dispensing and mixing tank, a support is arranged on the bottom of the bottom ring, and an electric telescopic rod is arranged on the bottom of the support.
[0008] As an improvement, a tank opening is arranged on the top of the medicine dispensing and mixing tank, and a cover driven by a motor is arranged in the tank opening.
[0009] As an improvement, the inner end of the rotating column is provided with a driving tooth, the auxiliary turnover mechanism includes a rotating ring rotating transversely in the outer frame of the device, a side plate corresponding provided on the rotating ring and located on one side of the two moving blocks, the side plate is provided with a slot at both upper and lower ends, a rack capable of meshing with the driving tooth is arranged between the two slots, a plug-in plate is inserted into the side plate, and a limiting piece in sliding connection with the plug-in plate is arranged in the slot.
[0010] As an improvement, the limiting piece includes a sliding block in sliding connection with the plug-in plate, the sliding block is provided with a second rack capable of meshing with the driving tooth, and the end of the sliding block is provided with a limiting plate capable of abutting against the driving tooth, and a spring is arranged between the limiting plate on the lower limiting piece and the rotating ring.
[0011] As an improvement, the device base includes a bottom plate in abutment with the bottom of the outer frame of the device and penetrated by the electric telescopic rod, and the bottom plate is provided with a discharge pipe capable of abutting against the mouth of the tank at the top.
[0012] As an improvement, the feeding top base is in abutment with the top of the outer frame of the device, and the feeding top base is provided with a medicine feeding groove, and the bottom of the medicine feeding groove is provided with a medicine feeding cylinder capable of abutting against the mouth of the tank.
[0013] The beneficial effects of the utility model compared with the prior art are as follows:
[0014] 1. The device realizes efficient and uniform mixing through three-dimensional mixed design: the moving block of the lifting and rotating mechanism cooperates with the threaded layer of the outer frame of the device, and under the driving of the electric telescopic rod, the medicine mixing tank is driven to move up and down and rotate transversely; meanwhile, the driving tooth on the rotating column of the medicine mixing tank meshes with the first rack and the second rack of the auxiliary turnover mechanism, and a longitudinal rotation action is superimposed. Three-dimensional composite motion makes the raw materials fully tumble and diffuse in the tank, and the smooth spherical inner wall of the medicine mixing tank has no mixing dead angle, and the mixing uniformity is greatly improved compared with the traditional single mixing mode.
[0015] 2. The device realizes precise and controllable motion through mechanical linkage: the electric telescopic rod can accurately adjust the lifting height and motion speed of the medicine mixing tank, the threaded transmission of the threaded layer and the moving block ensures the stability of the transverse rotation track; the limiting plate of the auxiliary turnover mechanism cooperates with the spring, and can accurately lock the longitudinal rotation angle when the driving tooth abuts, so that the tank mouth is vertically upwardly connected with the medicine feeding cylinder for feeding or vertically downwardly connected with the discharge pipe for discharging.
[0016] 3. The device greatly reduces energy consumption through power reuse design: only one power source of the electric telescopic rod is needed to drive the up-down movement, transverse rotation and longitudinal rotation of the medicine mixing tank. The cooperation of the moving block and the threaded layer converts the linear power into transverse rotation force, and the auxiliary turnover mechanism further converts part of the transverse rotation force into longitudinal rotation force, without the need for additional motor driving, which simplifies the structure and reduces energy consumption. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is a device overall structure schematic diagram of the medicine research dispensing equipment.
[0018] Figure 2 is a device overall split structure schematic diagram of the medicine research dispensing equipment.
[0019] Figure 3 is a device partial split structure schematic diagram of the medicine research dispensing equipment.
[0020] Figure 4 is a dispensing mixing tank structure schematic diagram of the medicine research dispensing equipment.
[0021] Figure 5 is a device partial structure schematic diagram of the medicine research dispensing equipment.
[0022] Figure 6 is a device partial structure schematic diagram of the medicine research dispensing equipment. Figure 3 A schematic diagram in the middle.
[0023] Figure 7 is a feed top seat structure schematic diagram of the medicine research dispensing equipment.
[0024] As shown in the figure: 1, the equipment base; 101, the bottom plate; 102, the discharge pipe; 2, the equipment frame; 201, the threaded layer; 3, the feed top seat; 301, the medicine slot; 302, the medicine cylinder; 4, the lifting rotary mechanism; 401, the moving block; 402, the bottom ring; 403, the slide rail; 404, the support; 405, the electric telescopic rod; 5, the dispensing mixing tank; 501, the rotating column; 502, the driving tooth; 503, the tank mouth; 504, the cover; 6, the auxiliary turnover mechanism; 601, the rotating ring; 602, the side plate; 603, the rack one; 604, the slot; 605, the plugboard; 606, the sliding block; 607, the rack two; 608, the limiting plate; 609, the spring. DETAILED DESCRIPTION
[0025] The utility model makes further detailed instructions in combination with the drawings.
[0026] In combination with the drawings Figure 1 , the drawings Figure 2 shown:
[0027] The utility model relates to a medicine research dispensing equipment, including equipment base 1, be equipped with equipment outer frame 2 on equipment base 1, be equipped with the feeding top seat 3 of material loading on equipment outer frame 2, be equipped with screw layer 201 on equipment outer frame 2 inner wall, be equipped with the lifting rotary mechanism 4 of cooperation with screw layer 201 in equipment outer frame 2, be equipped with the dispensing mixing jar 5 of material loading in lifting rotary mechanism 4, lifting rotary mechanism 4 starts when can drive dispensing mixing jar 5 and carries out up and down movement and transverse rotation simultaneously, be equipped with the auxiliary turnover mechanism 6 of driving by dispensing mixing jar 5 and carrying out transverse rotation in equipment outer frame 2, auxiliary turnover mechanism 6 can drive dispensing mixing jar 5 and carry out longitudinal rotation while transverse rotation.
[0028] The utility model works principle: the equipment takes "multidimensional mixing" as the core logic, through the feeding top seat 3 to dispensing mixing jar 5 delivery medicine raw materials, lifting rotary mechanism 4 drives dispensing mixing jar 5 and realizes up and down movement and transverse rotation simultaneously, auxiliary turnover mechanism 6 synchronous drive dispensing mixing jar 5 and carry out longitudinal rotation, form three-dimensional mixed action, ensure that raw materials are mixed evenly, after mixing, dispensing mixing jar 5 moves to equipment base 1, completes accurate discharge.
[0029] Equipment outer frame 2 provides installation and movement space for lifting rotary mechanism 4 and auxiliary turnover mechanism 6, and the screw layer 201 on the inner wall is threadedly connected with the lifting rotary mechanism 4, the top is connected with the feeding top seat 3, the bottom is connected with the equipment base 1, forming a closed dispensing space, reducing external pollution, and ensuring the cleanliness of the medicine. The equipment outer frame 2 carries various functional components, provides screw guidance for the lifting rotary mechanism 4, constructs a closed dispensing environment, and avoids medicine pollution and raw material leakage.
[0030] The utility model discloses a medicine research dispensing equipment, including equipment base 1, be equipped with equipment outer frame 2 on equipment base 1, be equipped with the feeding top seat 3 of material loading on equipment outer frame 2, be equipped with screw layer 201 on equipment outer frame 2 inner wall, be equipped with the lifting rotary mechanism 4 of cooperation with screw layer 201 in equipment outer frame 2, be equipped with the dispensing mixing jar 5 of material loading in lifting rotary mechanism 4, lifting rotary mechanism 4 starts when can drive dispensing mixing jar 5 and carries out up and down movement and transverse rotation simultaneously, be equipped with the auxiliary turnover mechanism 6 of driving by dispensing mixing jar 5 and carrying out transverse rotation in equipment outer frame 2, auxiliary turnover mechanism 6 can drive dispensing mixing jar 5 and carry out longitudinal rotation while transverse rotation. Figure 1 Figure 2 Figure 3 Figure 5
[0031] The lifting rotary mechanism 4 includes a moving block 401 that is correspondingly arranged and threadedly connected with the screw layer 201 at the outer end surface, a bottom ring 402 is arranged at the bottom of the moving block 401, a sliding rail 403 is slidably connected with the moving block 401 and arranged on the bottom ring 402, the bottom ring 402 drives the moving block 401 to move up and down through the sliding rail 403, a rotating column 501 is rotatably connected with the moving block 401 and arranged on the dispensing mixing jar 5, a support 404 is arranged at the bottom of the bottom ring 402, and an electric telescopic rod 405 is arranged at the bottom of the support 404.
[0032] The working principle of the lifting and rotating mechanism 4 is as follows: the electric telescopic rod 405 is started, the bottom ring 402 is driven to move up and down through the support 404, and the bottom ring 402 drives the moving block 401 to move along the threaded layer 201 of the equipment outer frame 2 through the slide rail 403; since the moving block 401 is in threaded cooperation with the threaded layer 201, the moving block 401 can move up and down while also rotating laterally, and then the rotating column 501 drives the medicine mixing tank 5 to realize synchronous up-down movement and lateral rotation; the telescopic speed of the electric telescopic rod 405 can be adjusted to control the movement rhythm of the medicine mixing tank 5. The lifting and rotating mechanism 4 provides a composite power for the up-down movement and lateral rotation of the medicine mixing tank 5, realizes the mixing of raw materials, and provides a basic movement for the longitudinal rotation of the auxiliary overturning mechanism 6. The driving power of the electric telescopic rod 405 is stable, and the lifting height and rotating speed of the medicine mixing tank 5 can be accurately controlled; the cooperation of the threaded layer 201 and the moving block 401 converts linear motion into rotary motion, without the need for an additional rotary driving source, and the structure is simple and reliable; the symmetrical design of the double moving blocks 401 ensures that the medicine mixing tank 5 is balanced in force.
[0033] The drawings show: Figure 1 , the drawings show: Figure 2 , the drawings show: Figure 3 , the drawings show: Figure 4 , the drawings show: Figure 5 , the drawings show: Figure 6 The drawings show:
[0034] The medicine mixing tank 5 is provided with a tank opening 503 at the top, and the tank opening 503 is provided with a cover 504 driven by a motor.
[0035] The inside end of the rotating column 501 is provided with a driving tooth 502, the auxiliary overturning mechanism 6 includes a rotating ring 601 rotating laterally in the equipment outer frame 2, a side plate 602 corresponding to the rotating ring 601 and located on one side of the two moving blocks 401, the side plate 602 is provided with a slot 604 at both ends, a rack 603 capable of meshing connection with the driving tooth 502 is arranged between the two slots 604, a plug plate 605 is inserted into the side plate 602, and a limiting piece is arranged in the slot 604 and in sliding connection with the plug plate 605.
[0036] The limiting piece includes a sliding block 606 in sliding connection with the plug plate 605, the sliding block 606 is provided with a rack 607 capable of meshing connection with the driving tooth 502, the end of the sliding block 606 is provided with a limiting plate 608 capable of abutting with the driving tooth 502, and the limiting plate 608 on the lower limiting piece is provided with a spring 609 between the rotating ring 601.
[0037] In order to achieve the precise mixing, clean protection requirements of the medicine research dispensing equipment, the medicine mixing tank 5 is a spherical medicine mixing tank 5, and the internal structure of the medicine mixing tank 5 is designed with "high-efficiency mixing + clean protection + residue control" as the core, the inner wall of the medicine mixing tank 5 is polished, and there is no obvious edge, groove or protrusion, and the whole is a continuous spherical curved surface.
[0038] The medicine mixing tank 5 can reduce the adsorption and residue of the medicine raw materials, especially the powder and granular, avoid the attachment of the raw materials on the tank wall to form "dead angle" and cause uneven mixing; and the smooth inner wall surface of the medicine mixing tank 5 can reduce the flow resistance of the raw materials, so that the raw materials can freely roll and diffuse in three-dimensional motion, and the mixing efficiency is improved; the polished inner wall can achieve easy cleaning effect, meet the clean standard of medicine research, and avoid cross contamination.
[0039] When loading, the tank opening 503 is connected with the feeding top seat 3, and the raw materials are received and closed by the cover 504; in the mixing stage, under the driving of the lifting and rotating mechanism 4, the medicine mixing tank 5 moves up and down and rotates laterally with the moving block 401, and the driving teeth 502 of the rotating column 501 is engaged with the rack of the auxiliary overturning mechanism 6, so that the longitudinal rotation of the medicine mixing tank 5 can be driven, three-dimensional mixing action is formed, and the uniformity of the raw materials is ensured; when discharging, the tank opening 503 is connected with the discharge pipe 102 of the equipment base 1, and the cover 504 is opened to discharge the medicine.
[0040] The medicine mixing tank 5 is a container for carrying medicine raw materials, and realizes three-dimensional mixing under the cooperative driving of the lifting and rotating mechanism 4 and the auxiliary overturning mechanism 6, so as to ensure the uniformity of the raw materials; the opening and closing of the tank opening 503 is realized by the cover 504, and the loading and discharging are controlled. The three-dimensional mixing action of the medicine mixing tank 5 is more uniform than the traditional single direction mixing, and the mixing efficiency is greatly improved.
[0041] When the medicine mixing tank 5 rotates laterally with the lifting and rotating mechanism 4, the driving teeth 502 of the rotating column 501 is engaged with the rack one 603 of the side plate 602, so as to drive the rotating ring 601 to rotate laterally in the equipment frame 2 synchronously; when the driving teeth 502 is engaged with the rack two 607 of the sliding block 606, the limiting plate 608 can abut against the driving teeth 502, at this time, the tank opening 503 is vertically upward or vertically downward, then the electric telescopic rod 405 is continuously started to drive the sliding block 606 to slide along the plug plate 605, and the medicine mixing tank 5 stops longitudinal rotation.
[0042] The auxiliary overturning mechanism 6 can convert part of the power of the lateral rotation of the medicine mixing tank 5 into longitudinal rotation power, realize three-dimensional mixing, and improve the uniformity of the raw materials. That is, the longitudinal rotation of the medicine mixing tank 5 does not need additional power source, relies on the lateral rotation of the medicine mixing tank 5 to realize the longitudinal rotation, and has simple structure and low energy consumption.
[0043] The combination of the medicine mixing tank 5 and the lifting and rotating mechanism 4 can realize the three-dimensional mixing of the medicine raw materials, and the medicine mixing tank 5 can be used for the mixing of the medicine raw materials.Figure 1 , attached Figure 2 , attached Figure 3 , attached Figure 4 as shown:
[0044] The device base 1 includes a bottom plate 101 that is docked with the bottom of the device frame 2 and is passed through by the electric telescopic rod 405, and the bottom plate 101 is provided with a discharge pipe 102 that can be docked with the tank opening 503 at the top.
[0045] The bottom plate 101 is placed on a flat workbench to provide stable support for the entire device. The lifting and rotating mechanism 4 drives the dispensing and mixing tank 5 to move downward, and the tank opening 503 is precisely docked with the discharge pipe 102. The cover 504 is opened, and the mixed medicine is guided out of the discharge pipe 102 to the collection container, completing the dispensing and discharging.
[0046] Combined with attached Figure 1 , attached Figure 2 , attached Figure 3 , attached Figure 4 , attached Figure 7 as shown:
[0047] The feeding top seat 3 is docked with the top of the device frame 2, and the feeding top seat 3 is provided with a medicine feeding groove 301, and the bottom of the medicine feeding groove 301 is provided with a medicine feeding cylinder 302 that can be docked with the tank opening 503.
[0048] Before dispensing, the lifting and rotating mechanism 4 drives the dispensing and mixing tank 5 to move upward, and the tank opening 503 is precisely docked with the medicine feeding cylinder 302. The required medicine raw materials are poured into the medicine feeding groove 301 according to the proportion, and the raw materials fall naturally along the medicine feeding cylinder 302 into the dispensing and mixing tank 5. After the feeding is completed, the motor drives the cover 504 to close the tank opening 503.
[0049] In the specific implementation of the dispensing device for medicine research, the required medicine raw materials are poured into the medicine feeding groove 301 of the feeding top seat 3 according to the proportion, and the raw materials fall into the dispensing and mixing tank 5 through the medicine feeding cylinder 302. After the feeding is completed, the motor drives the cover 504 to close the tank opening 503.
[0050] The electric telescopic rod 405 of the lifting and rotating mechanism 4 is started to retract, driving the bottom ring 402 to move upward through the support 404. The bottom ring 402 drives the moving block 401 to move along the threaded layer 201 of the inner wall of the device frame 2 through the slide rail 403. Since the moving block 401 is threadedly connected with the threaded layer 201, the moving block 401 rotates laterally while moving upward, and the dispensing and mixing tank 5 is synchronously lowered and laterally rotated through the rotating column 501.
[0051] The electric telescopic rod 405 drives the dispensing and mixing tank 5 to move downward and continuously rotate laterally, the driving teeth 502 at the end of the rotating column 501 are engaged with the rack 603 of the side plate 602 of the auxiliary overturning mechanism 6, the rotating ring 601 is driven to rotate laterally synchronously, meanwhile, the driving teeth 502 are engaged with the rack 607 of the sliding block 606, so that the dispensing and mixing tank 5 is superposed with longitudinal rotation on the basis of lateral rotation, forming three-dimensional mixing action;
[0052] When the driving teeth 502 abut against the limiting plate 608, the dispensing and mixing tank 5 stops longitudinal rotation, the electric telescopic rod 405 continues to drive the dispensing and mixing tank 5 to move downward and rotate laterally, so that the tank opening 503 is aligned with the discharge pipe 102 of the equipment base 1, the motor drives the cover 504 to open, the mixed medicine is guided out of the discharge pipe 102 to a collecting container, and the dispensing is completed.
[0053] The above describes the utility model and its implementation mode, which is not limited, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired, without departing from the creative purpose of the utility model, without creating a similar structure mode and embodiment, which should belong to the protection scope of the utility model.
Claims
1. A pharmaceutical preparation device for research, comprising a base (1), an outer frame (2) on the base (1), and a feeding top seat (3) for feeding materials on the outer frame (2), characterized in that: The inner wall of the equipment frame (2) is provided with a threaded layer (201). The equipment frame (2) is provided with a lifting and rotating mechanism (4) that cooperates with the threaded layer (201). The lifting and rotating mechanism (4) is provided with a drug mixing tank (5) that can be loaded with drugs. When the lifting and rotating mechanism (4) is started, it can drive the drug mixing tank (5) to move up and down and rotate laterally at the same time. The equipment frame (2) is provided with an auxiliary flipping mechanism (6) that is driven by the drug mixing tank (5) to rotate laterally. The auxiliary flipping mechanism (6) can drive the drug mixing tank (5) to rotate longitudinally while rotating laterally.
2. The pharmaceutical preparation equipment for research as described in claim 1, characterized in that: The lifting and rotating mechanism (4) includes a movable block (401) that is correspondingly provided and whose outer end face is threadedly connected to the threaded layer (201). The bottom of the movable block (401) is provided with a bottom ring (402). The bottom ring (402) is provided with a slide rail (403) that is slidably connected to the movable block (401). The bottom ring (402) can drive the movable block (401) to move up and down through the slide rail (403). The mixing tank (5) is provided with a rotating column (501) that is rotatably connected to the movable block (401). The bottom of the bottom ring (402) is provided with a bracket (404). The bottom of the bracket (404) is provided with an electric telescopic rod (405).
3. The pharmaceutical preparation equipment for research as described in claim 2, characterized in that: The top of the mixing tank (5) is provided with a tank opening (503), and a cover (504) driven by a motor is provided inside the tank opening (503).
4. A pharmaceutical preparation device for research according to claim 2, characterized in that: The inner end of the rotating column (501) is provided with a drive tooth (502). The auxiliary flipping mechanism (6) includes a rotating ring (601) that rotates laterally within the outer frame (2) of the equipment. A side plate (602) is provided on the rotating ring (601) and located on one side of the two moving blocks (401). The upper and lower ends of the side plate (602) are provided with slots (604). A rack (603) that can mesh with the drive tooth (502) is provided between the two slots (604). An insert plate (605) is inserted into the side plate (602). A limiting member that slides with the insert plate (605) is provided in the slot (604).
5. A pharmaceutical preparation device for research as described in claim 4, characterized in that: The limiting component includes a slider (606) that is slidably inserted into the insert plate (605). The slider (606) is provided with a rack (607) that can mesh with the drive tooth (502). The end of the slider (606) is provided with a limiting plate (608) that can abut against the drive tooth (502). A spring (609) is provided between the limiting plate (608) on the lower limiting component and the rotating ring (601).
6. A pharmaceutical preparation device for research according to claim 3, characterized in that: The equipment base (1) includes a base plate (101) that is connected to the bottom of the equipment frame (2) and is passed through by an electric telescopic rod (405). The base plate (101) is provided with a discharge pipe (102) whose top can be connected to the tank opening (503).
7. A pharmaceutical preparation device for research according to claim 3, characterized in that: The top of the feed seat (3) is connected to the top of the outer frame (2) of the equipment. The feed seat (3) is provided with a medicine inlet trough (301). The bottom of the medicine inlet trough (301) is provided with a medicine delivery cylinder (302) that can be connected to the tank opening (503).