Microbial agent batching device and method

Abstract

The present invention belongs to the technical field of biological microbial preparation, specifically a microbial microbial preparation batching device and method, including a fixed top plate, which not only plays the role of fixing the device, but also needs to add different agents to each dripping part, and the lower surface of the fixed top plate is evenly provided with guide chutes, and the inner wall of the guide chutes is slidably connected with a dripping part. The device can distribute different agents to each fixed dripping part, and perform separate drainage work through the dripping part to ensure that the agents will not mix with each other, and the device is suspended by the fixed top plate to reduce the occupied space of the test bench, so as to place more experimental instruments. When the experimenter obtains the experimental agent at a high frequency, the dripping part can be actively transported to a position within reach by controlling the guide chute, so as to achieve the effect of convenient picking up, thereby effectively improving the work efficiency of the experimenter and reducing the research and development cycle.

Description

Technical Field

[0001] The invention belongs to the technical field of biological bacterial agent preparation, and specifically relates to a microbial bacterial agent batching device and method. Background Art

[0002] Composite microbial agents are microbial preparations made from two or more non-antagonistic microbial strains. This type of agent generally has excellent characteristics such as a full range of species, reasonable compatibility, strong functionality, and high economic benefits. Microbial agents refer to live bacterial preparations made by processing the fermentation liquid of the target microorganisms after industrial production and expansion, using porous materials as adsorbents, such as peat and vermiculite, to adsorb the bacteria. This type of agent is used for seed dressing or root dipping, and has the functions of directly or indirectly improving soil, restoring soil fertility, preventing soil-borne diseases, maintaining the balance of rhizosphere microbial flora, and degrading toxic substances.

[0003] In the process of developing ingredients for microbial agents, researchers need to add a variety of chemicals and bacterial flora for mixing experiments, while general agents are only stored in glass containers. When experimenters perform high-frequency preparation work, they need to repeatedly take the agent bottles for sampling, and the experimental cycle is long. This requires taking optimization work to shorten the R&D cycle and improve the work efficiency of experimenters, making the experiment more modern and scientific. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention solves the technical problems by adopting the following technical solutions: a microbial agent dispensing device, comprising a fixed top plate, which not only serves to fix the device, but also needs to add different agents to each dripping component, the lower surface of the fixed top plate is evenly provided with guide grooves, and the inner wall of the guide groove is slidably connected with the dripping component;

[0005] The dripping component comprises a guide slider, and a slot slide is symmetrically fixed on the front and rear sides of the outer surface of the guide slider, a main rod component is arranged in the middle of the lower surface of the guide slider, and a modified joint is rotatably connected to the bottom end of the main rod component, and a dropper component is arranged at the bottom of the outer surface of the modified joint;

[0006] The guide slide groove includes a straight guide plate, and limiting end plates are symmetrically fixed at the front and rear ends of the straight guide plate. The inner cavity of the limiting end plate is symmetrically provided with wire take-ups on both sides away from the straight guide plate. The inner cavity of the wire take-up is slidably connected with a traction wire, and the wire take-ups on the front and rear sides pull the guide slider to slide along the straight guide plate by winding the traction wire.

[0007] Furthermore, the main rod component includes a fixed top shell, and an arc-shaped inner shell is rotatably connected to the axis of the inner cavity of the fixed top shell. The arc-shaped inner shell can rotate around the slide groove of the fixed top shell, and an extension bottom sleeve is fixedly connected to the axis of the bottom end of the inner cavity of the arc-shaped inner shell through a fixed port, and a rubber main pipe is fixedly connected to the axis of the top of the inner cavity of the arc-shaped inner shell. The rubber main pipe is a flexible tube body that can be deformed to a certain extent and mainly transports ingredient medicines. The bottom of the inner cavity of the extension bottom sleeve is slidably connected to an extension connecting tube, and the bottom of the outer surface of the extension connecting tube is slidably connected to the connecting bottom shell. With the traction effect of the extension connecting tube, the actual height of the main rod component can be extended.

[0008] Furthermore, the upper surface of the fixed top shell is fixedly connected to the axis of the lower surface of the guide slider, the outer surface of the arc-shaped inner shell is rotatably connected to the bottom of the inner cavity of the guide slider through a groove, and the top of the rubber main tube extends to the outside of the fixed top shell through a through hole. The outer surface of the slot slide is slidably connected to the inner wall of the straight guide plate, the end of the traction wire away from the wire take-up device is fixedly connected to the top of the slot slide, the upper surface of the straight guide plate is fixedly connected to the upper surface of the fixed top plate, and the top of the rubber main tube is fixedly connected to the inner cavity of the fixed top plate.

[0009] Further, the modified joint includes a connecting drum, and the left and right sides of the outer surface of the connecting drum are symmetrically provided with detectors, and a rubber auxiliary tube is fixedly connected to the axis of the bottom of the inner cavity of the connecting drum. The rubber auxiliary tube has the same structure as the rubber main tube, but the length and position are appropriately adjusted. A protective tube shell is plugged into the axis of the inner cavity of the detector, and a detection core is fixedly connected to the axis of the inner cavity of the protective tube shell. The detector detects the medicine passing through the connecting drum through the detection core, and the inner cavity of the protective tube shell is evenly provided with filter screen plates. The main rod component above and the dropper component below can rotate around the connecting drum. The end of the detector is plugged into the side of the connecting drum through a slot, and the bottom end of the connecting bottom shell is rotatably connected to the top of the outer surface of the connecting drum. Both ends of the detection core extend to the inside of the detector, and the bottom end of the rubber auxiliary tube extends to the outside of the connecting drum.

[0010] Furthermore, the dropper component includes a conical tube, a guide sleeve is fixedly connected to the middle of the inner wall of the conical tube, a flow blocking disk is fixedly connected to the middle of the inner cavity of the guide sleeve, a water-blocking slide is slidably connected to the inner wall of the guide sleeve, a docking plug is fixedly connected to the middle of the inner cavity of the water-blocking slide, and the docking plug is Figure 7As shown, a plug that docks with the water-permeable port of the flow-blocking plug plate is provided at a position offset from the center, and a notch for drainage is provided at the side, but these notches will be completely blocked by the lower surface of the flow-blocking plug plate, and spring sleeves are symmetrically provided on the upper and lower sides of the outer surface of the water-blocking slide. The bottom end of the conical tube is fixedly connected with a long tube shell, the outer surface of the long tube shell is fixedly connected to the bottom of the inner wall of the conical tube, the top end of the conical tube is rotatably connected to the bottom of the outer surface of the connecting rotating cylinder, the bottom end of the rubber auxiliary tube is fixedly connected to the axis of the upper surface of the guide sleeve, and the side of the spring sleeve away from the water-blocking slide is fixedly connected to the inner wall of the guide sleeve.

[0011] A method for preparing microbial inoculants comprises the following steps: firstly setting up the device above a test bench, fixing a top plate to the ceiling, and then connecting the rubber main pipe at the top of each dripping component to different medicine boxes; finally, setting an operating table capable of controlling a guide chute beside the test bench; when conducting a medicine experiment, an experimenter controls the operating table to pull closer a dripping component for dropping corresponding medicines, and then the experimenter holds the dropper component to perform dripping; after the dripping is completed, the experimenter releases the dropper component and the guide chute resets the dripping component.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. The device can distribute different medicines into each fixed dripping part, and perform separate drainage work through the dripping part to ensure that the medicines will not mix with each other. In addition, the device is suspended by a fixed top plate to reduce the space occupied by the test bench, so that more experimental instruments can be placed. When the experimenter obtains the experimental medicine at a high frequency, the dripping part can be actively transported to a position within reach by controlling the guide chute, so as to achieve the effect of convenient picking up, thereby effectively improving the work efficiency of the experimenter and reducing the research and development cycle.

[0014] 2. Compared with directly observing the labels on the experimental bottles to pick up the bottles, using a guide chute to transport the dripping parts can effectively prevent the experimenters from making mistakes in mixing the medicines due to factors such as blurred vision when working for a long time. In addition, the dripping parts after use will be reset under the control of the wire take-up device, thus avoiding the accumulation of multiple sets of dripping parts at the test bench, causing chaos at the experimental site.

[0015] 3. During the dropper experiment, if the dripping part can only be kept in a straight state, the operation will be very inconvenient. The dripping part of the device can rotate more flexibly, and the actual position of the dropper part can be extended through the main rod part, thereby increasing the effective range of the dripping part, making the operation of the experimenter smoother, and avoiding the problem that the experimenter has difficulty in calibrating the dropper part, which may cause the dripping part to be easily bent and damaged.

[0016] 4. After the reagent is discharged into the interior of the connecting drum through the bottom end of the rubber main pipe, it will wash the outer surface of the protective tube shell. With the obstruction of the filter plate, no excessive reagent will directly penetrate into the interior of the detection core. Then the reagent will continue to be transported downward through the rubber auxiliary pipe. Therefore, when the operator holds the dropper component, he can observe whether the reagent is normally released through the external screen of the detector on both sides of the modified joint, thereby ensuring the accuracy of the experiment. In the case of reagent deterioration, the problem can be solved in time to avoid the problem that the experimental results are abnormal and difficult to troubleshoot due to the deterioration of the reagent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the microbial agent batching device of the present invention;

[0018] Figure 2 is a cross-sectional view of the dripping component of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the guide chute of the present invention;

[0020] Figure 4 is a cross-sectional view of the main rod component of the present invention;

[0021] Figure 5 is a cross-sectional view of the modified joint of the present invention;

[0022] Figure 6 is a cross-sectional view of a dropper component of the present invention;

[0023] Figure 7 is a cross-sectional view of the water-blocking slide tube of the present invention;

[0024] Figure 8 is a cross-sectional view of a guide sleeve of the present invention;

[0025] Fig. 9 It is a method diagram of the microbial agent formulation method of the present invention.

[0026] In the figure: 1. Fixed top plate; 2. Guide slide; 3. Drip component; 31. Guide slider; 32. Slot slide; 4. Main rod component; 5. Modified joint; 6. Dropper component; 21. Straight guide plate; 22. Limit end plate; 23. Wire take-up device; 24. Pulling wire; 41. Fixed top shell; 42. Arc inner shell; 43. Extended bottom sleeve; 44. Rubber main pipe; 45. Connecting bottom shell; 46. Extended connecting tube; 51. Connecting rotating drum; 52. Detector; 53. Rubber auxiliary pipe; 54. Protective tube shell; 55. Detection core; 56. Filter screen; 61. Conical tube; 62. Guide sleeve; 63. Flow blocking disk; 64. Water-blocking slide; 65. Docking plug plate; 66. Spring sleeve; 67. Long tube shell. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0028] Example 1, please refer to Figure 1-Figure 3 The present invention provides a technical solution: a microbial agent batching device, comprising a fixed top plate 1, a lower surface of the fixed top plate 1 is evenly provided with guide chutes 2, and the inner wall of the guide chutes 2 is slidably connected with a dripping component 3;

[0029] The dripping component 3 includes a guide slider 31, and a slot slide plate 32 is symmetrically fixed on the front and rear sides of the outer surface of the guide slider 31. A main rod component 4 is arranged in the middle of the lower surface of the guide slider 31. The bottom end of the main rod component 4 is rotatably connected to a modified joint 5. A dropper component 6 is arranged at the bottom of the outer surface of the modified joint 5.

[0030] The guide slide 2 includes a straight guide plate 21, and limiting end plates 22 are symmetrically fixed at the front and rear ends of the straight guide plate 21. The inner cavity of the limiting end plate 22 is symmetrically provided with wire reels 23 on both sides away from the straight guide plate 21. The inner cavity of the wire reel 23 is slidably connected with a traction wire 24. The wire reels 23 on the front and rear sides pull the guide slider 31 to slide along the straight guide plate 21 by winding the traction wire 24.

[0031] The main rod component 4 includes a fixed top shell 41, and an arc-shaped inner shell 42 is rotatably connected to the axis center of the inner cavity of the fixed top shell 41. The arc-shaped inner shell 42 can rotate around the slide groove of the fixed top shell 41, and an extension bottom sleeve 43 is fixedly connected to the axis center of the bottom end of the inner cavity of the arc-shaped inner shell 42 through a fixed port, and a rubber main pipe 44 is fixedly connected to the axis center of the top of the inner cavity of the arc-shaped inner shell 42. The rubber main pipe 44 is a flexible tube body that can be deformed to a certain extent and mainly transports ingredient medicines. The bottom of the inner cavity of the extended bottom sleeve 43 is slidably connected to an extension connecting tube 46, and the bottom of the outer surface of the extended connecting tube 46 is slidably connected to a connecting bottom shell 45. With the traction effect of the extended connecting tube 46, the actual height of the main rod component 4 can be extended.

[0032] The upper surface of the fixed top shell 41 is fixedly connected to the axis of the lower surface of the guide slider 31, the outer surface of the arc inner shell 42 is rotatably connected to the bottom of the inner cavity of the guide slider 31 through a groove, and the top of the rubber main tube 44 extends to the outside of the fixed top shell 41 through a through hole. The outer surface of the slot slide 32 is slidably connected to the inner wall of the straight guide plate 21, the end of the traction wire 24 away from the wire take-up device 23 is fixedly connected to the top of the slot slide 32, the upper surface of the straight guide plate 21 is fixedly connected to the upper surface of the fixed top plate 1, and the top of the rubber main tube 44 is fixedly connected to the inner cavity of the fixed top plate 1.

[0033] After the device is arranged at a position convenient for the experimenters to operate, that is, above the test bench, the device can be used to assist the experimenters in the preparation of reagents.

[0034] The reagents discharged by each dripping component 3 are different, so when the experimenter needs to release a specific reagent, the required dripping component 3 can be controlled by the main control console. At this time, the control console controls the wire take-up device 23 to slide the dripping component 3 along the straight guide plate 21 to the front position close to the experimenter. Then the experimenter takes the dropper component 6 by hand and pulls the dripping component 3 down close to the test bench. At this time, in order to cooperate with the experimenter, the upper cylinder composed of the extended bottom sleeve 43, the extended connecting tube 46 and the connecting bottom shell 45 is lengthened, thereby moving the dropper component 6 to a position close to the test bench.

[0035] During the dropper experiment, if the dripping component 3 can only be kept in a straight state, the operation will be very inconvenient. Therefore, each dripping component 3 of the device can be deflected and deformed on both sides by modifying the joint 5 and the arc-shaped inner shell 42, and the extended bottom sleeve 43 can be deflected around the fixed top shell 41 by pulling the arc-shaped inner shell 42, and the main rod component 4 and the dropper component 6 can also be deflected around the modified joint 5, thereby increasing the freedom of movement of the discharge port of the dropper component 6, making the dripping component 3 more flexible and not too rigid, and then the dropper component 6 at the bottom end guides the experimental agent out through the internal rubber main pipe 44 and the rubber sub-pipe 53 to achieve the effect of adding the agent.

[0036] Example 2, please refer to Figure 1-Figure 9The present invention provides a technical solution: on the basis of embodiment 1, the modified joint 5 includes a connecting drum 51, and detectors 52 are symmetrically arranged on the left and right sides of the outer surface of the connecting drum 51. A rubber auxiliary tube 53 is fixedly connected to the axis at the bottom of the inner cavity of the connecting drum 51. The rubber auxiliary tube 53 has the same structure as the rubber main tube 44, but the length and position are appropriately adjusted. A protective tube shell 54 is inserted at the axis of the inner cavity of the detector 52, and a detection core 55 is fixedly connected to the axis of the inner cavity of the protective tube shell 54. The detector 52 detects the medicine passing through the connecting drum 51 through the detection core 55. The inner cavity of the protective tube shell 54 is evenly provided with filter screen plates 56. The upper main rod component 4 and the lower dropper component 6 can both rotate around the connecting drum 51. The end of the detector 52 is plugged into the side of the connecting drum 51 through a slot, the bottom end of the connecting bottom shell 45 is rotatably connected to the top of the outer surface of the connecting drum 51, both ends of the detection core 55 extend to the interior of the detector 52, and the bottom end of the rubber auxiliary tube 53 extends to the outside of the connecting drum 51.

[0037] The dropper component 6 includes a conical tube 61, a guide sleeve 62 is fixedly connected to the middle of the inner wall of the conical tube 61, a flow blocking plug plate 63 is fixedly connected to the middle of the inner cavity of the guide sleeve 62, a water-blocking slide 64 is slidably connected to the inner wall of the guide sleeve 62, and a docking plug plate 65 is fixedly connected to the middle of the inner cavity of the water-blocking slide 64. The docking plug plate 65 is as shown in FIG. Figure 7 As shown, a plug that docks with the water permeable port of the flow blocking plug 63 is provided at a position offset from the center, and a notch for drainage is provided at the side, but these notches will be completely blocked by the lower surface of the flow blocking plug 63, and spring sleeves 66 are symmetrically provided on the upper and lower sides of the outer surface of the water blocking slide 64. The bottom end of the conical tube 61 is fixedly connected with a long tube shell 67, the outer surface of the long tube shell 67 is fixedly connected to the bottom of the inner wall of the conical tube 61, the top end of the conical tube 61 is rotatably connected to the bottom of the outer surface of the connecting rotating cylinder 51, the bottom end of the rubber auxiliary tube 53 is fixedly connected to the axis of the upper surface of the guide sleeve 62, and the side of the spring sleeve 66 away from the water blocking slide 64 is fixedly connected to the inner wall of the guide sleeve 62.

[0038] After the medicine is discharged into the interior of the connecting drum 51 through the bottom end of the rubber main pipe 44, it will wash the outer surface of the protective tube shell 54. With the obstruction of the filter screen 56, no excessive medicine will directly penetrate into the interior of the detection core 55. Then the medicine will continue to be transported downward through the rubber auxiliary pipe 53. Therefore, when the operator holds the dropper component 6, he can observe whether the dosage of the medicine is normal through the outer screen of the detector 52 on both sides of the modified joint 5, thereby ensuring the accuracy of the experiment.

[0039] The medicine enters the axis of the guide sleeve 62 through the bottom end of the rubber sub-tube 53. When draining, the hydraulic pressure is large. At this time, the hydraulic pressure will push the water-blocking slide 64 downward as a whole through the docking plug plate 65, and then the through opening of the flow-blocking plug plate 63 and the side groove of the docking plug plate 65 are opened, so that the medicine can pass through the water-blocking slide 64 into the long tube shell 67, and then be discharged downstream. When the drainage work is completed, in order to prevent the remaining medicine inside the dripping component 3 from continuing to drip easily, the medicine that loses the hydraulic effect at this time cannot overcome the elastic force of the spring sleeve 66, so the flow-blocking plug plate 63 will be re-inserted and combined with the docking plug plate 65 to block the axis of the guide sleeve 62, thereby preventing the medicine from dripping and penetrating.

[0040] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A microbial inoculant batching device, comprising a fixed top plate (1), the lower surface of the fixed top plate (1) being evenly provided with guide grooves (2), the inner wall of the guide groove (2) being slidably connected with a dripping component (3), characterized in that: The dripping component (3) comprises a guide slider (31), and a slot slide plate (32) is symmetrically fixed on the front and rear sides of the outer surface of the guide slider (31), and a main rod component (4) is arranged in the middle of the lower surface of the guide slider (31), and the bottom end of the main rod component (4) is rotatably connected to a modified joint (5), and a dropper component (6) is arranged at the bottom of the outer surface of the modified joint (5); The guide slide groove (2) comprises a straight guide plate (21), and limit end plates (22) are symmetrically fixed at the front and rear ends of the straight guide plate (21), and wire take-ups (23) are symmetrically arranged on both sides of the inner cavity of the limit end plate (22) away from the straight guide plate (21), and the inner cavity of the wire take-up device (23) is slidably connected to a traction wire (24).

2. The microbial agent batching device according to claim 1, characterized in that: The main rod component (4) comprises a fixed top shell (41), the inner cavity of the fixed top shell (41) is rotatably connected to an arc-shaped inner shell (42) at the axis center, the inner cavity bottom end of the arc-shaped inner shell (42) is fixedly connected to an extension bottom sleeve (43) at the axis center through a fixing port, the inner cavity top of the arc-shaped inner shell (42) is fixedly connected to a rubber main pipe (44) at the axis center, the inner cavity bottom of the extension bottom sleeve (43) is slidably connected to an extension connecting tube (46), and the bottom of the outer surface of the extension connecting tube (46) is slidably connected to a connecting bottom shell (45).

3. The microbial agent batching device according to claim 2, characterized in that: The upper surface of the fixed top shell (41) is fixedly connected to the axis of the lower surface of the guide slider (31), the outer surface of the arc-shaped inner shell (42) is rotatably connected to the bottom of the inner cavity of the guide slider (31) through a groove, and the top end of the rubber main tube (44) extends to the outside of the fixed top shell (41) through a through opening.

4. The microbial agent batching device according to claim 3, characterized in that: The outer surface of the slot slide plate (32) is slidably connected to the inner wall of the straight guide plate (21), the end of the traction wire (24) away from the wire take-up device (23) is fixedly connected to the top of the slot slide plate (32), the upper surface of the straight guide plate (21) is fixedly connected to the upper surface of the fixed top plate (1), and the top end of the rubber main pipe (44) is fixedly connected to the inner cavity of the fixed top plate (1).

5. The microbial agent batching device according to claim 1, characterized in that: The modified joint (5) comprises a connecting rotating cylinder (51), detectors (52) are symmetrically arranged on the left and right sides of the outer surface of the connecting rotating cylinder (51), a rubber auxiliary tube (53) is fixedly connected to the axis of the bottom of the inner cavity of the connecting rotating cylinder (51), a protective tube shell (54) is inserted at the axis of the inner cavity of the detector (52), a detection core (55) is fixedly connected to the axis of the inner cavity of the protective tube shell (54), and the inner cavity of the protective tube shell (54) is evenly provided with filter screen plates (56).

6. The microbial agent batching device according to claim 5, characterized in that: The end of the detector (52) is plugged into the side of the connecting drum (51) through a slot, the bottom end of the connecting bottom shell (45) is rotatably connected to the top of the outer surface of the connecting drum (51), both ends of the detection core (55) extend to the inside of the detector (52), and the bottom end of the rubber auxiliary tube (53) extends to the outside of the connecting drum (51).

7. The microbial agent batching device according to claim 6, characterized in that: The dropper component (6) includes a conical tube (61), a guide sleeve (62) is fixedly connected to the middle of the inner wall of the conical tube (61), a flow blocking plate (63) is fixedly connected to the middle of the inner cavity of the guide sleeve (62), a water-blocking slide (64) is slidably connected to the inner wall of the guide sleeve (62), a docking plate (65) is fixedly connected to the middle of the inner cavity of the water-blocking slide (64), and spring sleeves (66) are symmetrically arranged on the upper and lower sides of the outer surface of the water-blocking slide (64).

8. The microbial agent batching device according to claim 7, characterized in that: The bottom end of the conical tube (61) is fixedly connected to a long tube shell (67), the outer surface of the long tube shell (67) is fixedly connected to the bottom of the inner wall of the conical tube (61), the top end of the conical tube (61) is rotatably connected to the bottom of the outer surface of the connecting rotating cylinder (51), the bottom end of the rubber auxiliary tube (53) is fixedly connected to the axis of the upper surface of the guide sleeve (62), and the side of the spring sleeve (66) away from the water-blocking slide cylinder (64) is fixedly connected to the inner wall of the guide sleeve (62).

9. A method for preparing microbial agents, characterized in that: The following steps are involved: S1: The device is set up above the test bench, and the top plate (1) is fixed to the ceiling; S2: The rubber main pipe (44) at the top of each dripping component (3) is connected to a different medicine box; S3: An operating table capable of controlling the guide chute (2) is provided next to the test bench; S4: The experimenter controls the operation table to bring the dripping component (3) for delivering the corresponding medicine closer; S5: The experimenter holds the dropper component (6) to perform the dripping operation; S6: The experimenter loosens the dropper component (6) and guides the slide groove (2) to reset the dripping component (3).

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