CN219502546U

CN219502546U - Dispensing device

Info

Publication number: CN219502546U
Application number: CN202320834193.5U
Authority: CN
Inventors: 黄运华; 杨飞; 张超; 王海燕; 陈阳光
Original assignee: Three Gorges Ecological Garden Co ltd
Current assignee: Three Gorges Ecological Garden Co ltd
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2023-08-11
Anticipated expiration: 2033-04-13

Abstract

The utility model discloses a dispensing device which is applied to the field of landscaping and comprises a dispensing barrel and a barrel cover, wherein the dispensing barrel and the barrel cover are in bolt connection and matched, a high-efficiency mixing mechanism is arranged in the middle of the dispensing barrel, two quantitative medicine discharging mechanisms are arranged at the top of the barrel cover, a heating assembly is arranged at the bottom of the dispensing barrel, when the dispensing device is used, gas can be input from the bottom of the dispensing barrel while stirring medicines and water in the dispensing barrel, the gas enters mixed medicine liquid to form bubbles, the bubbles can drive macromolecular medicines deposited at the bottom upwards, so that the macromolecular medicines and the micromolecular medicines can be fully stirred and mixed, the medicines can be quantitatively conveyed into the dispensing barrel through the quantitative medicine discharging mechanism, the matched concentration of the medicine liquid can be controlled, the bottom of the dispensing barrel can be heated through the heating assembly, and the mixing efficiency of the medicine liquid is improved.

Description

Dispensing device

Technical Field

The utility model belongs to the technical field of landscaping, and particularly relates to a dispensing device.

Background

Afforestation is to apply engineering technology and artistic means in a certain region, plant trees and flowers by modifying terrains (or further building mountains, overlapping stones and arranging water), build beautiful natural environment and recreation area created by building and arranging garden paths and the like, and the flowers, plants and trees in the Afforestation need to be sprayed regularly to weed, deinsectization and nutrient solution adding operation to the flowers, plants and trees so as to achieve the purpose of maintaining the flowers, plants and trees.

The current announcements are: CN213101886U discloses a dispensing device for repairing garden soil, which comprises a bright body, the bottom of a shell is uniformly and fixedly connected with a plurality of supporting legs, the bottom of the inner wall of the shell is fixedly connected with a turntable bearing, the top of the turntable bearing is fixedly connected with a dispensing profile, the top of the bright body is fixedly connected with a top cover, the bottom of the top cover is fixedly connected with a protection corona, the center of the top cover is fixedly connected with a gear motor, the shaft of the gear motor is fixedly connected with a driving shaft after the end penetrates the top of the top cover, the outer wall of the driving shaft is fixedly sleeved with a first gear, the first gear, a driven shaft, stirring blades and the like, and the three driven shafts can be simultaneously driven to drive the stirring blades to stir and mix medicaments by utilizing the meshing transmission of the first gear and the second gear.

Although this patent has a function of stirring and mixing medicines by a plurality of stirring blades, it does not have a function of sufficiently mixing medicines of macromolecule precipitated at the bottom to the top and medicines of micromolecule, in the prior art, because the molecular specific gravities of the medicines are different, the medicines with different specific gravities are precipitated and separated, and the effect of mixing medicines is poor, and at the same time, it does not have a function of quantitatively mixing medicine liquid and heating and mixing medicines when the air temperature is low.

Disclosure of Invention

The utility model aims to provide a dispensing device, which has the advantages of having the function of conveying macromolecule medicament deposited at the bottom to the top for fully mixing with micromolecule medicament, having the function of quantitatively dispensing liquid medicament and heating and mixing medicament when the temperature is low.

The technical aim of the utility model is achieved by the following technical scheme that the dispensing device comprises a dispensing barrel and a barrel cover, wherein the dispensing barrel and the barrel cover are in bolt fit, a high-efficiency mixing mechanism is arranged in the middle of the dispensing barrel, two quantitative medicine discharging mechanisms are arranged at the top of the barrel cover, and a heating assembly is arranged at the bottom of the dispensing barrel;

the efficient mixing mechanism comprises a water injection pipe, a motor, a rotating shaft, a spiral blade, an air delivery pump, an input pipe, a check valve, an air outlet disc and an air outlet hole, wherein the water injection pipe is welded on the side wall of the dispensing barrel and is communicated with the dispensing barrel, the motor is bolted on the top surface of the barrel cover, the rotating shaft is connected with the middle part of the barrel cover and is fixedly connected with the output end of the motor, the spiral blade is welded on the side wall of the rotating shaft, the air delivery pump is bolted on the side wall of the dispensing barrel, the input pipe is bolted on the side wall of the dispensing barrel and is fixedly connected with the output end of the air delivery pump, the other end of the input pipe extends to the inside of the dispensing barrel, the check valve is fixedly connected with the middle part of the input pipe, and the air outlet disc is bolted on the bottom surface of the inside of the dispensing barrel and is communicated with one end of the input pipe, and a plurality of air outlet holes are formed in the top surface of the air outlet disc.

By adopting the technical scheme, through setting up the medicine dispensing barrel, the barrel cover, the high-efficient mixing mechanism, quantitative medicine discharging mechanism and heating assembly, during the use, the high-efficient mixing mechanism can be when stirring medicine and water in the medicine dispensing barrel, gas is input from the bottom of medicine dispensing barrel, gas enters mixed medicine liquid and forms bubbles, the bubbles can upwards drive macromolecular medicine precipitated at the bottom, so, macromolecular medicine and micromolecular medicine can be fully stirred and mixed, medicine can be quantitatively conveyed in the medicine dispensing barrel through the quantitative medicine discharging mechanism, the matching concentration of medicine liquid can be controlled, the bottom of the medicine dispensing barrel can be heated through the heating assembly, medicine liquid can be heated when the temperature is lower, the mixing efficiency of medicine liquid is improved, so, medicine and water are fully mixed, medicine liquid can be quantitatively discharged, medicine liquid can be heated when the temperature is low, and the mixing efficiency of medicine liquid is improved; through setting up water injection pipe, a motor, the rotation axis, the spiral leaf, the air delivery pump, the input tube, the check valve, air outlet disc and venthole, heat water in to the barrel that dispenses through the water injection pipe, when the liquid medicine mixes, the air delivery pump passes through the input tube with the outside gas and carries out the air outlet disc in, the venthole is with gaseous exhaust to the inside liquid medicine of barrel that dispenses, the check valve can prevent the inside liquid medicine refluence of barrel that dispenses, gaseous macromolecular medicament upward movement that forms bubble drive bottom deposit in the liquid medicine, motor intercommunication power drives the rotation axis simultaneously, the spiral leaf stirs the mixture to the inside liquid medicine, so, can improve the mixing efficiency to the liquid medicine.

The utility model is further provided with: the quantitative medicine discharging mechanism comprises a medicine discharging tube, a medicine discharging tank, a top cover, a manual valve and a first transparent observation port, wherein the medicine discharging tube is fixedly arranged at the top of the barrel cover and is communicated with the barrel cover, the medicine discharging tank is welded at the top end of the medicine discharging tube and is communicated with the medicine discharging tube to be matched with the medicine discharging tube, the top cover is in threaded connection with the top of the medicine discharging tank, the manual valve is fixedly connected with the middle part of the medicine discharging tube, and the first transparent observation port is fixedly arranged on the side wall of the medicine discharging tank.

By adopting the technical scheme, through setting up the medicine discharging pipe, the medicine discharging tank, the top cover, the manual valve and the first transparent viewing port, during the use, add the medicament in the medicine discharging tank, can control the quantity of medicament in the medicine discharging tank in entering the medicine discharging pipe through the manual valve, can observe the quantity of medicament discharging through the first transparent viewing port, so, can realize carrying out quantitative unloading to the medicament.

The utility model is further provided with: the heating element includes end cover, mount pad and electrical heating dish, end cover bolt is on the bottom surface of dispensing the bucket, the mount pad bolt is on the inside top surface of end cover, the electrical heating dish bolt is on the top surface of mount pad, the input tube runs through the middle part of end cover.

By adopting the technical scheme, through setting up end cover, mount pad and electrical heating dish, during the use, electrical heating dish intercommunication power heating operation, electrical heating dish will heat transfer to the bottom of dispensing the bucket, and then heat can transfer to the inside liquid medicine of dispensing the bucket and heat, so, can improve the mixing efficiency to the liquid medicine when the temperature is low.

The utility model is further provided with: the middle part of top cap slides and is provided with the depression bar, threaded connection has the pressure disk on the bottom surface of depression bar, it has rubber to hang the strip to bond on the lateral wall of pressure disk, the top welding of depression bar has the disc, cup jointed the spring on the lateral wall of depression bar, the both ends of spring contact with disc and top cap respectively.

By adopting the technical scheme, through setting up depression bar, pressure disk, rubber string strip, disc and spring, during the use, the disc is pressed down, and the depression bar promotes the pressure disk downstream this moment, and pressure disk and rubber pipe strip will go down the inside medicament extrusion of medicine jar to down in the medicine pipe, can place down the inner wall of medicine jar and remain the medicament.

The utility model is further provided with: and a second transparent observation port is arranged on the side wall of the dispensing barrel.

By adopting the technical scheme, through setting up the transparent viewing aperture of second, can be convenient for observe the inside liquid medicine volume and the mixed condition of dispensing barrel.

The utility model is further provided with: the bottom surface of the barrel cover is welded with a sealing insert ring, the top surface of the dispensing barrel is provided with a sealing slot, and the sealing insert ring is in plug-in fit with the sealing slot.

By adopting the technical scheme, the sealing effect between the barrel cover and the dispensing barrel can be improved by arranging the sealing insert ring and the sealing slot and inserting the sealing insert ring and the sealing slot.

The utility model is further provided with: the side walls of the first transparent observation port and the second transparent observation port are respectively provided with an observation scale.

By adopting the technical scheme, the medicine dispensing barrel and the medicine discharging tank can be conveniently observed through arranging the observation scales on the side walls of the first transparent observation port and the second transparent observation port.

The utility model is further provided with: four support columns are welded on the bottom surface of the bottom cover, and support legs are connected to the side walls of the support columns in a threaded mode.

By adopting the technical scheme, the dispensing barrel can be adjusted to be horizontally and stably supported on the uneven bottom surface through the support columns and the support legs.

In summary, the utility model has the following beneficial effects:

through setting up high-efficient mixing mechanism can be when stirring medicine and water inside the bucket of making up a prescription, follow the bottom input gas of the bucket of making up a prescription, gas gets into the formation bubble in the liquid medicine of mixing, and the bubble can upwards drive the macromolecular medicament that the bottom was precipitated, so, can carry out intensive mixing and mixing to macromolecular medicament and micromolecular medicament.

The quantitative medicine discharging mechanism is arranged to quantitatively convey the medicine to the medicine dispensing barrel, so that the matching concentration of the medicine liquid can be controlled.

The bottom of the medicine dispensing barrel can be heated through the heating assembly, the medicine liquid can be heated when the temperature is low, and the mixing efficiency of the medicine liquid is improved.

Based on the improvement points, the device has the advantages that when the medicament is mixed with water, the macromolecular medicament deposited at the bottom is conveyed to the top to be fully mixed with the micromolecular medicament, the quantitative medicament discharging can be carried out on the liquid medicament, the liquid medicament can be heated when the air temperature is low, and the mixing efficiency of the liquid medicament is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a left side view of the present utility model;

FIG. 3 is a perspective cross-sectional view of the present utility model at A-A in FIG. 2;

FIG. 4 is a perspective cross-sectional view of the dosing mechanism of the present utility model;

FIG. 5 is a schematic structural view of the quantitative dispensing mechanism of the present utility model;

fig. 6 is a schematic view of the structure of the second transparent viewing port and the viewing scale of the present utility model.

In the figure, 1, a dispensing barrel; 2. a barrel cover; 3. an efficient mixing mechanism; 4. a quantitative medicine discharging mechanism; 5. a heating assembly; 31. a water injection pipe; 32. a motor; 33. a rotation shaft; 34. spiral leaves; 35. an air delivery pump; 36. an input tube; 37. a non-return valve; 38. an air outlet disc; 39. an air outlet hole; 41. a medicine discharging tube; 42. discharging the medicine from the medicine tank; 43. a top cover; 44. a manual valve; 45. a first transparent viewing port; 51. a bottom cover; 52. a mounting base; 53. an electric heating plate; 61. a compression bar; 62. a pressure plate; 63. rubber hanging strips; 64. a disc; 65. a spring; 71. a second transparent viewing port; 81. sealing the insert ring; 82. sealing the slot; 91. observing the scale; 10. a support column; 11. and supporting the feet.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

Examples:

referring to fig. 1-6, the present utility model provides the following technical solutions: the medicine dispensing device comprises a medicine dispensing barrel 1 and a barrel cover 2, wherein the medicine dispensing barrel 1 and the barrel cover 2 are in bolt fit, a high-efficiency mixing mechanism 3 is arranged in the middle of the medicine dispensing barrel 1, two quantitative medicine discharging mechanisms 4 are arranged at the top of the barrel cover 2, and a heating assembly 5 is arranged at the bottom of the medicine dispensing barrel 1; the efficient mixing mechanism 3 comprises a water injection pipe 31, a motor 32, a rotating shaft 33, a spiral blade 34, a gas transmission pump 35, an input pipe 36, a check valve 37, an air outlet disc 38 and an air outlet hole 39, wherein the water injection pipe 31 is welded on the side wall of the dispensing barrel 1 and is in through fit with the dispensing barrel 1, the motor 32 is bolted on the top surface of the barrel cover 2, the rotating shaft 33 is connected with the middle part of the barrel cover 2 in a bearing manner and is fixedly connected with the output end of the motor 32, the spiral blade 34 is welded on the side wall of the rotating shaft 33, the gas transmission pump 35 is bolted on the side wall of the dispensing barrel 1, the input pipe 36 is bolted on the side wall of the dispensing barrel 1, one end of the input pipe 36 is fixedly connected with the output end of the gas transmission pump 35, the other end of the input pipe 36 extends into the interior of the dispensing barrel 1, the check valve 37 is fixedly connected with the middle part of the input pipe 36, the air outlet disc 38 is bolted on the bottom surface of the interior of the dispensing barrel 1 and is in communication fit with one end of the input pipe 36, the plurality of air outlet holes 39 are arranged on the top surface of the air outlet disc 38, the medicine dispensing barrel 1, the barrel cover 2, the high-efficiency mixing mechanism 3, the quantitative medicine discharging mechanism 4 and the heating component 5 are arranged, when the high-efficiency mixing mechanism 3 is used, air is input from the bottom of the medicine dispensing barrel 1 while stirring medicine and water in the medicine dispensing barrel 1, the air enters mixed medicine liquid to form air bubbles, the air bubbles can drive macromolecular medicine precipitated at the bottom upwards, so that the macromolecular medicine and the micromolecular medicine can be fully stirred and mixed, the medicine can be quantitatively conveyed to the medicine dispensing barrel 1 through the quantitative medicine discharging mechanism 4, the matching concentration of the medicine liquid can be controlled, the bottom of the medicine dispensing barrel 1 can be heated through the heating component 5, the medicine liquid can be heated when the air temperature is low, the mixing efficiency of the medicine liquid is improved, so that the medicine and the water can be fully mixed, the quantitative medicine discharging can be carried out on the medicine liquid, the medicine liquid can be heated when the temperature is low, and the mixing efficiency of the medicine liquid is improved; through setting up water injection pipe 31, motor 32, rotation axis 33, spiral leaf 34, gas-supply pump 35, input tube 36, check valve 37, air outlet disc 38 and venthole 39, heat water in to dispensing bucket 1 through water injection pipe 31, when the liquid medicine mixes, the gas-supply pump 35 carries the outside gas to air outlet disc 38 through input tube 36, venthole 39 is with gas discharge to the inside liquid medicine of dispensing bucket 1, check valve 37 can prevent the inside liquid medicine refluence of dispensing bucket 1, the gas forms the bubble in the liquid medicine and drives the macromolecular medicament upward movement that the bottom was precipitated, motor 32 intercommunication power drive rotation axis 33 simultaneously rotates, spiral leaf 34 stirs the mixture to the inside liquid medicine, so, can improve the mixing efficiency to the liquid medicine.

Referring to fig. 4 and 5, the quantitative medicine discharging mechanism 4 includes a medicine discharging tube 41, a medicine discharging tube 42, a top cover 43, a manual valve 44 and a first transparent observation port 45, the medicine discharging tube 41 is fixedly arranged at the top of the barrel cover 2 and is communicated with the barrel cover 2, the medicine discharging tube 42 is welded at the top end of the medicine discharging tube 41 and is communicated with the medicine discharging tube 41, the top cover 43 is in threaded connection with the top of the medicine discharging tube 42, the manual valve 44 is fixedly connected to the middle part of the medicine discharging tube 41, the first transparent observation port 45 is fixedly arranged on the side wall of the medicine discharging tube 42, and medicine is added into the medicine discharging tube 42 through the arrangement of the medicine discharging tube 41, the medicine discharging tube 42, the top cover 43, the manual valve 44 and the first transparent observation port 45, and when the quantitative medicine discharging device is used, the medicine discharging amount of the medicine can be controlled through the manual valve 44 and can be observed through the first transparent observation port 45.

Referring to fig. 3, the heating assembly 5 includes a bottom cover 51, a mounting seat 52 and an electric heating plate 53, the bottom cover 51 is bolted on the bottom surface of the dispensing barrel 1, the mounting seat 52 is bolted on the top surface of the inside of the bottom cover 51, the electric heating plate 53 is bolted on the top surface of the mounting seat 52, the input tube 36 penetrates through the middle part of the bottom cover 51, and through setting the bottom cover 51, the mounting seat 52 and the electric heating plate 53, when in use, the electric heating plate 53 is communicated with a power supply for heating operation, the electric heating plate 53 transfers heat to the bottom of the dispensing barrel 1, and then the heat is transferred to the inside of the dispensing barrel 1 for heating the medicine liquid in the inside, so that the mixing efficiency of the medicine liquid when the temperature is low can be improved.

Referring to fig. 4, a pressing rod 61 is slidably arranged in the middle of the top cover 43, a pressing plate 62 is connected to the bottom surface of the pressing rod 61 in a threaded manner, a rubber hanging strip 63 is adhered to the side wall of the pressing plate 62, a disc 64 is welded to the top end of the pressing rod 61, a spring 65 is sleeved on the side wall of the pressing rod 61, two ends of the spring 65 are respectively in contact with the disc 64 and the top cover 43, and when the medicine bottle is used, the disc 64 is pressed downwards, the pressing rod 61 pushes the pressing plate 62 to move downwards at the moment, the pressing plate 62 and the rubber tube strip squeeze medicine in the medicine bottle 42 into the medicine bottle 41, and medicine can be placed on the inner wall of the medicine bottle 42.

Referring to fig. 6, a second transparent viewing port 71 is provided on a sidewall of the dispensing barrel 1, and by providing the second transparent viewing port 71, it is possible to facilitate observation of the amount and mixing condition of the liquid medicine inside the dispensing barrel 1.

Referring to fig. 3, a sealing insert ring 81 is welded on the bottom surface of the barrel cover 2, a sealing slot 82 is formed in the top surface of the dispensing barrel 1, the sealing insert ring 81 is in plug-in fit with the sealing slot 82, and the sealing effect between the barrel cover 2 and the dispensing barrel 1 can be improved by arranging the sealing insert ring 81 and the sealing slot 82 and plugging in the sealing insert ring 81 and the sealing slot 82.

Referring to fig. 5 and 6, the first transparent observation port 45 and the second transparent observation port 71 are provided with the observation scales 91 on the side walls thereof, and the observation scales 91 are provided on the side walls of the first transparent observation port 45 and the second transparent observation port 71, so that the medicine liquid amount inside the medicine dispensing barrel 1 and the medicine discharging tank 42 can be observed conveniently.

Referring to fig. 6, four support columns 10 are welded on the bottom surface of the bottom cover 51, support legs 11 are connected to the side walls of the support columns 10 in a threaded manner, and the horizontal stable support of the dispensing barrel 1 at the uneven bottom surface can be adjusted by arranging the support columns 10 and the support legs 11.

The use process is briefly described: when the medicine dispensing device is used, firstly, water is added into the medicine dispensing barrel 1 through the water injection pipe 31, the amount of the inside of the medicine dispensing barrel 1 can be observed through the observation scale 91 on the second transparent observation port 71, medicine is added into the medicine dispensing tank 42, when medicine and water are mixed, medicine in the medicine dispensing tank 42 can be input into the medicine dispensing pipe 41 by controlling the manual valve 44, the medicine amount can be observed through the observation scale 91 on the first transparent observation port 45 immediately after entering the inside of the medicine dispensing barrel 1, when the medicine dispensing barrel 1 is mixed, the air pump 35 transmits outside air into the air outlet disc 38 through the input pipe 36, the air outlet hole 39 discharges air into medicine liquid in the medicine dispensing barrel 1, the check valve 37 can prevent medicine liquid in the medicine dispensing barrel 1 from flowing backwards, air forms bubbles in the medicine liquid to drive macromolecular medicine precipitated at the bottom, meanwhile, the motor 32 is communicated with the power supply to drive the rotary shaft 33 to rotate, the spiral blade 34 stir and mix the medicine liquid in the inside, when the air temperature is low, the electric heating disc 53 is communicated with the power supply to heat the medicine, the heat is transmitted to the bottom of the medicine dispensing barrel 1, then the heat can be transmitted to the inside the medicine dispensing barrel 1, when the medicine liquid is heated to the medicine liquid, the medicine is fully, and the medicine can be mixed with the medicine liquid when the medicine is heated, and the medicine liquid is heated to the medicine is completely at the bottom when the air temperature, and the medicine is mixed with the medicine liquid, and the medicine is sufficiently heated.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Claims

1. The utility model provides a dispensing device, includes dispensing barrel (1) and bung (2), its characterized in that: the medicine dispensing barrel (1) is in bolt fit with the barrel cover (2), a high-efficiency mixing mechanism (3) is arranged in the middle of the medicine dispensing barrel (1), two quantitative medicine discharging mechanisms (4) are arranged at the top of the barrel cover (2), and a heating assembly (5) is arranged at the bottom of the medicine dispensing barrel (1);

the efficient mixing mechanism (3) comprises a water injection pipe (31), a motor (32), a rotating shaft (33), a spiral blade (34), an air delivery pump (35), an input pipe (36), a check valve (37), an air delivery disc (38) and an air outlet hole (39), wherein the water injection pipe (31) is welded on the side wall of the dispensing barrel (1) and is in through fit with the dispensing barrel (1), the motor (32) is bolted on the top surface of the barrel cover (2), the rotating shaft (33) is in bearing connection with the middle part of the barrel cover (2) and is fixedly connected with the output end of the motor (32), the spiral blade (34) is welded on the side wall of the rotating shaft (33), the air delivery pump (35) is bolted on the side wall of the dispensing barrel (1), one end of the input pipe (36) is fixedly connected with the output end of the air delivery pump (35), the other end of the input pipe (36) extends to the inside of the dispensing barrel (1), the check valve (37) is fixedly connected with the middle part of the input pipe (36), and the air delivery disc (38) is connected with the air delivery disc (38) on the bottom surface of the dispensing barrel (38).

2. A dispensing device according to claim 1, wherein: the quantitative medicine discharging mechanism (4) comprises a medicine discharging tube (41), a medicine discharging tank (42), a top cover (43), a manual valve (44) and a first transparent observation port (45), wherein the medicine discharging tube (41) is fixedly arranged at the top of the barrel cover (2) and is communicated with the barrel cover (2), the medicine discharging tank (42) is welded at the top end of the medicine discharging tube (41) and is communicated with the medicine discharging tube (41), the top cover (43) is in threaded connection with the top of the medicine discharging tank (42), the manual valve (44) is fixedly connected with the middle of the medicine discharging tube (41), and the first transparent observation port (45) is fixedly arranged on the side wall of the medicine discharging tank (42).

3. A dispensing device according to claim 1, wherein: the heating assembly (5) comprises a bottom cover (51), a mounting seat (52) and an electric heating disc (53), wherein the bottom cover (51) is bolted to the bottom surface of the dispensing barrel (1), the mounting seat (52) is bolted to the top surface inside the bottom cover (51), the electric heating disc (53) is bolted to the top surface of the mounting seat (52), and the input tube (36) penetrates through the middle part of the bottom cover (51).

4. A dispensing device according to claim 2, wherein: the middle part of top cap (43) slides and is provided with depression bar (61), threaded connection has pressure disk (62) on the bottom surface of depression bar (61), bond on the lateral wall of pressure disk (62) has rubber string strip (63), the top welding of depression bar (61) has disc (64), cup jointed spring (65) on the lateral wall of depression bar (61), the both ends of spring (65) respectively with top cap (43) contact of disc (64).

5. A dispensing device according to claim 1, wherein: a second transparent observation port (71) is arranged on the side wall of the dispensing barrel (1).

6. A dispensing device according to claim 1, wherein: the sealing insert ring (81) is welded on the bottom surface of the barrel cover (2), the sealing slot (82) is formed in the top surface of the dispensing barrel (1), and the sealing insert ring (81) is in plug-in fit with the sealing slot (82).

7. A dispensing device according to claim 2, wherein: the side walls of the first transparent observation port (45) and the second transparent observation port (71) are respectively provided with an observation scale (91).

8. A dispensing device according to claim 3, wherein: four support columns (10) are welded on the bottom surface of the bottom cover (51), and support legs (11) are connected to the side walls of the support columns (10) in a threaded mode.