Dust filtering equipment and powder filtering method for medicinal material identification

Abstract

The invention relates to the technical field of filtering equipment, and discloses dust filtering equipment and a powder filtering method for medicinal material identification. The dust filtering equipment comprises a base, a filter cartridge mounted on the base and a filter screen mounted in the filter cartridge; the cover plate is mounted at the top of the filter cartridge; the outer driving mechanism is mounted on one side of the base; the liquid conveying mechanism is mounted in the base; and the inner driving mechanism is mounted in the filter cartridge. The device is provided with the inner driving mechanism, the outer driving mechanism, the liquid conveying mechanism, the movable filter screen and the movable cover plate, medicine powder can be collected in a centralized mode when the inner driving mechanism operates, then the medicine powder is soaked in a solvent through the liquid conveying mechanism to be dissolved and precipitated, and finally precipitates and waste liquid are filtered and separated through the outer driving mechanism and the filter screen. By means of the mode, medicine powder left in the device when traditional Chinese medicine is filtered can be recycled, and especially for traditional Chinese medicine powder with high value, medicine loss and economic loss can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of filtering equipment, in particular to a dust filtering device and a powder filtering method for medicinal material identification. Background Art

[0002] The main method for identifying Chinese medicinal materials is to observe the powder of Chinese medicinal materials under a microscope. Therefore, it is necessary to filter the raw material powder of Chinese medicinal materials to remove large particles of impurities, lumps after moisture absorption, and lumps after mildew. The most common filtering equipment at present is the vibration type. Its principle is to use a vibration motor to drive the filter cartridge and the filter screen inside the filter cartridge to vibrate. The medicinal powder that meets the particle size requirements passes through the filter screen and falls and is discharged. However, there are certain shortcomings when using such equipment: the medicinal powder with smaller particle size is sticky and will adhere to the filter screen surface and the inner wall of the filter cartridge after the filtration work is completed. These medicinal powders are usually washed away, resulting in loss. If the medicinal powder is very valuable, it will bring certain economic losses. However, there is currently a lack of recycling methods for such medicinal powders. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the present invention provides a dust filtering equipment and a powder filtration method for medicinal material identification, which have the advantages of being able to recover residual medicinal powder inside the equipment, and solves the problem that the existing equipment cannot recover the medicinal powder adhering to the inside of the equipment after filtering the medicinal powder, resulting in a part of the loss, and then causing the loss of medicinal value and economic value.

[0004] To solve the above technical problems, the present invention provides the following technical solutions: A dust filtering device, comprising a base, a filter cartridge mounted on the base, a filter screen mounted in the filter cartridge, a cover plate mounted on the top of the filter cartridge, an external drive mechanism mounted on one side of the base, an infusion mechanism mounted in the base, and an internal drive mechanism mounted in the filter cartridge;

[0005] The filter cartridge is provided with an upper discharge port and a lower discharge port, and the lower discharge port is provided with a gate valve for controlling the opening and closing of the lower discharge port;

[0006] The edge of the cover plate is in close contact with the inner wall of the filter cartridge, and a feed port is provided on the top of the cover plate for feeding;

[0007] The internal drive mechanism includes a drive screw that matches the position of the feed port, with a fan blade fixed to the top of the drive screw. The internal drive mechanism is used to drive the cover plate and the filter screen to move down to the bottom of the filter cartridge cavity. The internal drive mechanism is also used to control the rotation of the fan blade to scatter the material;

[0008] The external driving mechanism includes a support frame installed outside the base, and the external driving mechanism is used to drive the filter cartridge to tilt;

[0009] The infusion mechanism comprises a liquid storage cavity arranged in the base and a water pump fixed in the liquid storage cavity. The infusion mechanism is used for storing solvent and delivering the solvent to the interior of the filter cartridge.

[0010] Preferably, an annular rib is provided on the top of the filter cartridge, the edge of the cover plate extends to the bottom of the annular rib, a nut sleeve is also provided inside the cover plate, a ring is provided on the outer surface of the nut sleeve, the ring is snap-connected with the nut sleeve, connecting frames are fixed on both sides of the ring, and the connecting frame is fixedly connected to the cover plate.

[0011] Preferably, the inner driving mechanism also includes a mounting bracket fixed to the bottom of the filter cartridge, a first motor is fixed on one side of the mounting bracket, a main bevel gear is fixed to the output shaft of the first motor, the bottom end of the driving screw penetrates the bottom wall of the filter cartridge and is rotatably connected to the bottom wall of the filter cartridge, the bottom end of the driving screw is fixed with an upper bevel gear, the upper bevel gear is meshed with the main bevel gear, the top end of the driving screw penetrates the filter screen and the nut sleeve in sequence, and the driving screw is threadedly connected to the nut sleeve, the inner driving mechanism also includes a plurality of vertical guide rods distributed in an annular array inside the filter cartridge, the two ends of the vertical guide rod are respectively fixed to the annular rib and the inner bottom wall of the filter cartridge, the vertical guide rod is movably connected to the filter screen and the edge of the cover plate, a spring is sleeved on the vertical guide rod, the bottom end of the spring is fixedly connected to the filter screen, and the top end of the spring is fixedly connected to the edge of the cover plate.

[0012] Preferably, the vertical guide rod includes an upper thick rod portion and a lower thin rod portion, the thin rod portion passes through the filter screen, the thick rod portion passes through the edge of the cover plate, and the spring is sleeved on the outside of the thick rod portion.

[0013] Preferably, an output pipe is fixed to the output end of the water pump, one end of the output pipe passes through the outside of the base and is fixedly connected to the side wall of the filter cartridge, and a valve is installed at the connection between the output pipe and the side wall of the filter cartridge.

[0014] Preferably, a protective cover is fixed on the support frame, a base shaft is fixedly connected to one side of the base, the base shaft passes through the support frame and is rotatably connected to the support frame, one end of the base shaft extends to the inside of the protective cover and is fixed with a driven gear, a second motor is fixed on the protective cover, the output shaft of the second motor extends to the inside of the protective cover and is fixed with a driving gear, and the driving gear is meshed with the driven gear.

[0015] Preferably, an annular groove is provided on the inner wall of the collar, a limiting gear is fixedly sleeved on the outside of the nut sleeve, and the limiting gear is located in the annular groove. The connecting frame includes a transverse tube and a vertical tube fixed in the middle of the transverse tube. The transverse tube is connected to the inside of the vertical tube. One end of the transverse tube is fixedly connected to the collar, and the other end of the transverse tube passes through the cover plate and is fixedly connected to the cover plate. A locking assembly is provided in the connecting frame, and the locking assembly is used to release the locking of the nut sleeve and the collar. The locking assembly is also used to position the cover plate.

[0016] Preferably, the locking assembly includes a third motor fixed inside the vertical tube, the output shaft of the third motor extends to the inside of the horizontal tube and is fixed with a push gear, a push rack is provided inside the horizontal tube, a clamping rod is fixed to one end of the pushing rack close to the collar, the end of the clamping rod is engaged with the limit gear, and a positioning rod is fixed to the end of the pushing rack away from the collar.

[0017] Preferably, a through hole is provided at the top of the liquid storage chamber, and a stirring assembly is also installed on the mounting frame, and the stirring assembly is used to configure the solvent in the liquid storage chamber, and the stirring assembly includes a stirring rod rotatably connected to the mounting frame, the bottom end of the stirring rod extends into the liquid storage chamber through the through hole and is fixed with a stirring blade, a square hole is provided at the top of the stirring rod, a square rod is movably inserted in the square hole, a cylinder is fixed at the top of the square rod, a lower bevel gear is fixed at the top of the cylinder, and the lower bevel gear is located directly below the upper bevel gear, and the stirring assembly also includes an electric push rod fixed on the mounting frame, the electric push rod is vertically arranged, and the output shaft of the electric push rod is fixed with a bearing seat, and the cylinder is rotatably connected to the bearing seat.

[0018] The present invention also discloses a powder filtering method for medicinal material identification, which uses the above-mentioned dust filtering equipment.

[0019] Compared with the prior art, the present invention provides a dust filtration device and a powder filtration method for medicinal material identification, which has the following beneficial effects:

[0020] 1. This type of dust filtering equipment and powder filtering method for medicinal material identification, by setting an internal driving mechanism, an external driving mechanism, an infusion mechanism, and a movable filter and cover, first collects the medicinal powder in a centralized manner when the internal driving mechanism is in operation, then immerses the medicinal powder in a solvent for dissolution and precipitation through the infusion mechanism, and finally filters and separates the precipitate and waste liquid through the external driving mechanism and the filter, so that the precipitate with medicinal value is collected separately. This method can recover the medicinal powder remaining inside the equipment when filtering traditional Chinese medicine, especially for traditional Chinese medicine powder with higher value, and can avoid the loss of medicine and economic losses.

[0021] 2. This type of dust filtering equipment and powder filtering method for medicinal material identification, by providing a locking component, can release the locking of the nut sleeve and the ring by using the locking component. At this time, when the internal drive mechanism is started again, the fan blades can be driven to rotate idly, which is conducive to scattering the Chinese medicinal raw materials and avoiding the accumulation of Chinese medicinal raw materials in the center of the filter. The scattered raw materials are evenly distributed on the filter, which can improve the filtration efficiency of the medicinal powder.

[0022] 3. This type of dust filtering equipment and powder filtering method for medicinal material identification, by setting a stirring component, can filter the medicinal powder while starting the stirring component to stir the solvent raw material in the liquid storage chamber, which is conducive to preparing the solvent while filtering the medicinal powder, without the need for other equipment, saving operation time and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of a dust filtering device of the present invention;

[0024] Figure 2 A cross-sectional view of a dust filtering device according to the present invention;

[0025] Figure 3 For the present invention Figure 2 A magnified view of part A;

[0026] Figure 4 For the present invention Figure 2 A magnified view of part B;

[0027] Figure 5 A partial cross-sectional view of the cover plate of the present invention;

[0028] Figure 6 For the present invention Figure 5 Magnified view of part C;

[0029] Figure 7 is a cross-sectional view of the protective cover of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the liquid injection mechanism of the present invention;

[0031] Figure 9 Schematic diagram of the operation of the inner driving mechanism of the present invention.

[0032] In the figure: 1. Base; 2. Filter cartridge; 21. Upper discharge port; 22. Lower discharge port; 23. Gate valve; 24. Annular rib; 3. Filter screen; 4. Cover plate; 41. Nut sleeve; 411. Limiting gear; 42. Collar; 421. Annular groove; 43. Connecting frame; 431. Horizontal pipe; 432. Vertical pipe; 5. External driving mechanism; 51. Support frame; 52. Protective cover; 53. Base shaft; 54. Driven gear; 55. Second motor; 56. Driving gear; 6. Infusion mechanism; 61. Liquid storage chamber; 611. Through hole; 62. Water Pump; 63. Output pipe; 7. Internal drive mechanism; 71. Drive screw; 72. Fan blade; 73. Mounting frame; 74. First motor; 75. Main bevel gear; 76. Upper bevel gear; 77. Vertical guide rod; 78. Spring; 8. Engaging assembly; 81. Third motor; 82. Push gear; 83. Push rack; 84. Clamping rod; 85. Positioning rod; 9. Stirring assembly; 91. Stirring rod; 92. Stirring blade; 93. Square hole; 94. Square rod; 95. Cylinder; 96. Lower bevel gear; 97. Electric push rod; 98. Bearing seat. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] As introduced in the background technology, in order to solve the deficiencies in the existing technology, this application proposes a dust filtering device and a powder filtering method for medicinal material identification.

[0035] Example 1: Please refer to Figures 1-9 A dust filtering device includes a base 1, a filter cartridge 2 mounted on the base 1, a filter screen 3 mounted in the filter cartridge 2, a cover plate 4 mounted on the top of the filter cartridge 2, an external drive mechanism 5 mounted on one side of the base 1, an infusion mechanism 6 mounted in the base 1, and an internal drive mechanism 7 mounted in the filter cartridge 2;

[0036] The filter cartridge 2 is provided with an upper discharge port 21 and a lower discharge port 22. The lower discharge port 22 is provided with a gate valve 23 for controlling the opening and closing of the lower discharge port 22.

[0037] The edge of the cover plate 4 is in close contact with the inner wall of the filter cartridge 2, and a feed port is provided on the top of the cover plate 4 for feeding;

[0038] The internal drive mechanism 7 includes a drive screw 71 that matches the position of the feed port, and a fan blade 72 is fixed to the top of the drive screw 71. The internal drive mechanism 7 is used to drive the cover plate 4 and the filter screen 3 to move downward to the bottom of the filter cartridge cavity. The internal drive mechanism 7 is also used to control the rotation of the fan blade 72 to scatter the material;

[0039] The external driving mechanism 5 includes a support frame 51 installed outside the base 1, and the external driving mechanism 5 is used to drive the filter cartridge 2 to tilt;

[0040] The infusion mechanism 6 includes a liquid storage cavity 61 provided in the base 1 and a water pump 62 fixed in the liquid storage cavity 61. The infusion mechanism 6 is used to store the solvent and deliver the solvent to the interior of the filter cartridge 2.

[0041] Among them, the upper discharge port 21 is consistent in height with the filter screen 3. The upper discharge port 21 is used to discharge large powder particles on the top of the filter screen 3, and the lower discharge port 22 is used to discharge small powder particles that meet the identification standards. The drive screw 71 is vertically arranged, and the fan blades 72 at the top of the drive screw 71 are provided in multiple numbers and distributed in a circular array. The fan blades 72 are located directly below the feed port. The outer diameter of the fan blade 72 is smaller than the inner diameter of the feed port. The edge of the cover plate 4 is covered with a rubber ring to ensure that the edge of the cover plate 4 is tightly fitted with the inner wall of the filter cartridge 2. The liquid storage chamber 61 is pre-injected with a solvent and a precipitant that can dissolve the powder to be processed.

[0042] During use, when filtering the powder, the gate valve 23 on the lower discharge port 22 is opened, and the powder raw material is injected into the filter cartridge 2 through the feed port. Impurities are retained in the upper layer of the filter screen 3 and discharged from the upper discharge port 21, and the powder that meets the specifications is discharged from the lower discharge port 22. When the filtering work is completed, the gate valve 23 is closed, and then the internal driving mechanism 7 is started. When the internal driving mechanism 7 is running, it drives the cover plate 4 and the filter screen 3 to move downward in succession, and finally moves to the bottom of the inner cavity of the filter cartridge 2. At the same time, when the cover plate 4 moves downward, it also scrapes off the powder attached to the inner wall of the filter cartridge 2. At this time, most of the residual powder in the filter cartridge 2 is concentrated in the bottom of the inner cavity of the filter cartridge 2. Then the infusion mechanism 6 is started, and the infusion mechanism 6 injects the configured solvent in the liquid storage chamber 61. The liquid is injected into the filter cartridge 2 and the filter cartridge 2 is started to vibrate so that the residual powder is completely dissolved in the solvent and precipitated in the solvent. The precipitate is the effective ingredient in the powder. After that, the internal driving mechanism 7 is operated to control the cover plate 4 and the filter screen 3 to move up and reset. Then the external driving mechanism 5 is started. After the operation of the external driving mechanism 5, the filter cartridge 2 is driven to tilt so that the residual precipitate and solvent inside the filter cartridge 2 flow. The solvent passes through the filter screen 3 and is discharged through the upper discharge port 21, and the precipitate is blocked by the filter screen 3. Finally, the gate valve 23 on the lower discharge port 22 is opened again, and the filter cartridge 2 is started to vibrate. The tilted and vibrated filter cartridge 2 causes the internal precipitate to be discharged through the lower discharge port 22, thereby realizing the recovery of the powder.

[0043] By setting up an internal driving mechanism 7, an external driving mechanism 5, an infusion mechanism 6, and a movable filter 3 and a cover plate 4, the medicinal powder can be collected in a concentrated manner when the internal driving mechanism 7 is in operation, and then the medicinal powder is immersed in a solvent by the infusion mechanism 6 for dissolution and precipitation. Finally, the precipitate and the waste liquid are filtered and separated by the external driving mechanism 5 and the filter 3, so that the precipitate with medicinal value is collected separately. This method can recover the medicinal powder remaining inside the equipment when filtering traditional Chinese medicine, especially for traditional Chinese medicine powder with higher value, and can avoid the loss of medicine and economic losses.

[0044] Example 2: See Figure 2-Figure 4 , different from the above embodiment, the top of the filter cartridge 2 is provided with an annular rib 24, the edge of the cover plate 4 extends to the bottom of the annular rib 24, and a nut sleeve 41 is further provided in the cover plate 4, and a collar 42 is provided on the outer sleeve of the nut sleeve 41, and the collar 42 is engaged with the nut sleeve 41, and a connecting frame 43 is fixed on both sides of the collar 42, and the connecting frame 43 is fixedly connected to the cover plate 4, and the internal driving mechanism 7 also includes a mounting frame 73 fixed to the bottom of the filter cartridge 2, and a first motor 74 is fixed to one side of the mounting frame 73, and a main bevel gear 75 is fixed to the output shaft of the first motor 74, and the bottom end of the drive screw 71 passes through the bottom wall of the filter cartridge 2 and is rotatably connected to the bottom wall of the filter cartridge 2 The bottom end of the driving screw 71 is fixed with an upper bevel gear 76, and the upper bevel gear 76 is meshed with the main bevel gear 75. The top of the driving screw 71 passes through the filter screen 3 and the nut sleeve 41 in sequence, and the driving screw 71 is threadedly connected to the nut sleeve 41. The internal driving mechanism 7 also includes a plurality of vertical guide rods 77 distributed in an annular array inside the filter cartridge 2. The two ends of the vertical guide rods 77 are respectively fixed to the annular rib 24 and the inner bottom wall of the filter cartridge 2. The vertical guide rods 77 are movably connected to the filter screen 3 and the edge of the cover plate 4. A spring 78 is sleeved on the vertical guide rod 77. The bottom end of the spring 78 is fixedly connected to the filter screen 3, and the top of the spring 78 is fixedly connected to the edge of the cover plate 4.

[0045] The annular rib 24 is used to position the edge of the cover plate 4 to prevent the cover plate 4 from separating from the filter cartridge 2 when it moves up. When in use, the first motor 74 is started. When the first motor 74 is running, it drives the main bevel gear 75 to rotate. When the main bevel gear 75 rotates, it drives the upper bevel gear 76 to rotate. When the upper bevel gear 76 rotates, it drives the driving screw 71 to rotate. Since the nut sleeve 41 at the bottom of the cover plate 4 is threadedly connected to the driving screw 71, when the driving screw 71 rotates, it drives the entire cover plate 4 to move vertically downward along the guide rod. When the cover plate 4 moves downward, it drives the spring 78 to move downward, and then drives the filter screen 3 to move downward. In the process of the cover plate 4 moving downward, the edge of the cover plate 4 scrapes off the residual powder on the inner wall of the filter cartridge 2 and pushes it downward. Finally, the powder on the filter screen 3, the powder at the bottom of the cover plate 4, the powder on the side wall of the filter cartridge 2, and the powder on the bottom wall of the filter cartridge 2 are all collected below the inner cavity of the filter cartridge 2.

[0046] By setting up the internal driving mechanism 7, when the first motor 74 is started, the driving screw 71 can be driven to rotate, thereby driving the cover plate 4 and the filter screen 3 to move downward, which is conducive to collecting the residual powder inside the filter cartridge 2, so that the powder is unified below the inner cavity of the filter cartridge 2, which is convenient for subsequent recovery work.

[0047] Example 3, see Figure 2 and Figure 9 Different from the above embodiment, the vertical guide rod 77 includes a thick rod portion at the top and a thin rod portion at the bottom. The thin rod portion passes through the filter 3, and the thick rod portion passes through the edge of the cover plate 4. The spring 78 is sleeved on the outside of the thick rod portion.

[0048] Among them, in the initial state, the spring 78 is in a stretched state, and the pulling force of the spring 78 on the filter 3 makes the filter 3 close to the bottom end of the thick rod. Therefore, the elastic force of the spring 78 and the bottom end of the thick rod can be used to make the filter 3 maintain the current height, ensuring that the position of the filter 3 can always remain stable during the work of filtering the medicinal powder.

[0049] Example 4, see Figure 8 , which is different from the above embodiment, an output pipe 63 is fixed to the output end of the water pump 62, one end of the output pipe 63 passes through the outside of the base 1 and is fixedly connected to the side wall of the filter cartridge 2, and a valve is installed at the connection between the output pipe 63 and the side wall of the filter cartridge 2.

[0050] The liquid storage chamber 61 is provided inside the base 1, and a feeding port is provided at the top of the liquid storage chamber 61 and a sewage pipe is provided at the bottom of the liquid storage chamber 61. When in use, a solvent is injected into the liquid storage chamber 61 in advance. The solvent must meet the solubility requirements of the drug, and a precipitant must also be added to the solvent to improve the precipitation efficiency of the effective value of the drug powder in the solvent.

[0051] During use, when the cover plate 4 and the filter screen 3 are moved to the bottom of the inner cavity of the filter cartridge 2, the water pump 62 is started. When the water pump 62 is running, the solvent is injected into the output pipe 63 and then injected into the filter cartridge 2 through the output pipe 63, so that the residual powder is immersed in the solvent.

[0052] Example 5, see Figure 7 , different from the above embodiment, a protective cover 52 is fixed on the support frame 51, and a base shaft 53 is fixedly connected to one side of the base 1. The base shaft 53 passes through the support frame 51 and is rotatably connected to the support frame 51. One end of the base shaft 53 extends into the interior of the protective cover 52 and is fixed with a driven gear 54. A second motor 55 is fixed on the protective cover 52. The output shaft of the second motor 55 extends into the interior of the protective cover 52 and is fixed with a driving gear 56. The driving gear 56 is meshed with the driven gear 54.

[0053] Among them, the support frame 51 includes a base located at the bottom of the filter cartridge 2 and a side seat located on the side of the filter cartridge 2. The side seat and the base are welded. When in use, the second motor 55 is started. When the second motor 55 is running, it drives the driving gear 56 to rotate. When the driving gear 56 rotates, it drives the driven gear 54 to rotate. When the driven gear 54 rotates, it drives the base shaft 53 to rotate. When the base shaft 53 rotates, it drives the base 1 to rotate, thereby driving the filter cartridge 2 on the top of the base 1 to tilt. When the filter cartridge 2 is tilted, the upper discharge port 21 is located at the bottom of the filter cartridge 2. Therefore, the liquid in the solvent is discharged through the upper discharge port 21, and the filter screen 3 blocks the sediment, so that the sediment remains in the filter cartridge 2;

[0054] The provision of the external driving mechanism 5 is conducive to driving the filter cartridge 2 to tilt, thereby facilitating pouring out the solvent waste liquid in the filter cartridge 2 and then utilizing the filter screen 3 to retain the extracted precipitate.

[0055] Example 6, see Figure 3-Figure 6 , different from the above embodiment, the inner wall of the collar 42 is provided with an annular groove 421, the nut sleeve 41 is fixedly sleeved with a limit gear 411 outside, the limit gear 411 is located in the annular groove 421, the connecting frame 43 includes a transverse tube 431 and a vertical tube 432 fixed in the middle of the transverse tube 431, the transverse tube 431 is communicated with the interior of the vertical tube 432, one end of the transverse tube 431 is fixedly connected to the collar 42, the other end of the transverse tube 431 passes through the cover plate 4 and is fixedly connected to the cover plate 4, a snap assembly 8 is provided in the connecting frame 43, the snap The engaging assembly 8 is used to release the engagement between the nut sleeve 41 and the collar 42. The engaging assembly 8 is also used to position the cover plate 4. The engaging assembly 8 includes a third motor 81 fixed inside the vertical tube 432. The output shaft of the third motor 81 extends to the inside of the horizontal tube 431 and is fixed with a push gear 82. A push rack 83 is provided inside the horizontal tube 431. A clamping rod 84 is fixed to one end of the pushing rack 83 close to the collar 42. The end of the clamping rod 84 is engaged with the limit gear 411. A positioning rod 85 is fixed to the end of the pushing rack 83 away from the collar 42.

[0056] In the initial state, the height of the transverse tube 431 is higher than the annular rib 24. A plurality of tooth blocks are provided at the end of the clamping rod 84. The clamping rod 84 is engaged with the limiting gear 411 through the tooth blocks. When the clamping rod 84 is engaged with the limiting gear 411, the positioning rod 85 is retracted in the transverse tube 431.

[0057] When in use, when filtering the medicine powder, the third motor 81 is started. When the third motor 81 is running, it drives the pushing gear 82 to rotate. When the pushing gear 82 rotates, it drives the pushing rack 83 to move. When the pushing rack 83 moves, it also drives the clamping rod 84 and the positioning rod 85 to move. When the positioning rod 85 moves, it moves to the outside of the horizontal tube 431 and moves to the top of the annular rib 24, and when the clamping rod 84 moves, it disengages from the limiting gear 411 and is no longer engaged with the limiting gear 411. At this time, the cover plate 4 can maintain this height under the action of the positioning rod 85, and then the internal driving mechanism 7 is started again. At this time, when the driving screw 71 rotates, it drives the fan blades 72 and the nut sleeve 41 to rotate idly, and will not drive the cover plate 4 to move downward. At this time, when the medicine powder falls on the fan blades 72 through the feed port, it is scattered by the rotating fan blades 72;

[0058] By setting up the locking assembly 8, the locking assembly 8 can be used to release the locking of the nut sleeve 41 and the ring 42. At this time, when the internal driving mechanism 7 is started again, the fan blades 72 can be driven to rotate idly, which is conducive to scattering the Chinese medicinal raw materials and avoiding the accumulation of Chinese medicinal raw materials in the center of the filter 3. The scattered raw materials are evenly distributed on the filter 3, which can improve the filtering efficiency of the medicinal powder.

[0059] Example 7, see Figure 4 and Figure 8 , different from the above embodiment, the top of the liquid storage chamber 61 is provided with a through hole 611, and the mounting frame 73 is also equipped with a stirring assembly 9, which is used to configure the solvent in the liquid storage chamber 61, and the stirring assembly 9 includes a stirring rod 91 rotatably connected to the mounting frame 73, the bottom end of the stirring rod 91 extends into the liquid storage chamber 61 through the through hole 611 and is fixed with a stirring blade 92, the top of the stirring rod 91 is provided with a square hole 93, and a square rod 94 is movably inserted into the square hole 93, and a cylinder 95 is fixed to the top of the square rod 94, and a lower bevel gear 96 is fixed to the top of the cylinder 95, and the lower bevel gear 96 is located directly below the upper bevel gear 76, and the stirring assembly 9 also includes an electric push rod 97 fixed on the mounting frame 73, the electric push rod 97 is vertically arranged, and the output shaft of the electric push rod 97 is fixed with a bearing seat 98, and the cylinder 95 is rotatably connected to the bearing seat 98.

[0060] In the initial state, the lower bevel gear 96 is separated from the main bevel gear 75. While filtering the powder, the solvent raw material is first injected into the liquid storage chamber 61. Then, the electric push rod 97 is started, and the electric push rod 97 drives the bearing seat 98 to move, thereby driving the cylinder 95, the lower bevel gear 96 and the square rod 94 to move, so that the lower bevel gear 96 is engaged with the main bevel gear 75. Then, when the first motor 74 is started, the main bevel gear 75 and the lower bevel gear 96 drive the square rod 94 to rotate. When the square rod 94 rotates, it drives the stirring rod 91 and the stirring blade 92 to rotate, so that the solvent raw material in the liquid storage chamber 61 can be mixed and stirred to prepare the solvent.

[0061] By setting up the stirring component 9, while filtering the medicinal powder, starting the stirring component 9 can also stir the solvent raw material in the liquid storage chamber 61, which is conducive to preparing the solvent while filtering the medicinal powder, without the need to use other equipment, saving operation time and cost.

[0062] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A dust filtering device comprising a base, a filter cartridge mounted on the base, and a filter screen mounted in the filter cartridge, characterized in that: It also includes a cover plate installed on the top of the filter cartridge, an external driving mechanism installed on one side of the base, an infusion mechanism installed in the base, and an internal driving mechanism installed in the filter cartridge; The filter cartridge is provided with an upper discharge port and a lower discharge port, and the lower discharge port is provided with a gate valve for controlling the opening and closing of the lower discharge port; The edge of the cover plate is in close contact with the inner wall of the filter cartridge, and a feed port is provided on the top of the cover plate for feeding; The internal drive mechanism includes a drive screw that matches the position of the feed port, with a fan blade fixed to the top of the drive screw. The internal drive mechanism is used to drive the cover plate and the filter screen to move down to the bottom of the filter cartridge cavity. The internal drive mechanism is also used to control the rotation of the fan blade to scatter the material; The external driving mechanism includes a support frame installed outside the base, and the external driving mechanism is used to drive the filter cartridge to tilt; The infusion mechanism comprises a liquid storage cavity arranged in the base and a water pump fixed in the liquid storage cavity. The infusion mechanism is used for storing solvent and delivering the solvent to the interior of the filter cartridge.

2. The dust filtering device according to claim 1, characterized in that: An annular rib is provided on the top of the filter cartridge, and the edge of the cover plate extends to the bottom of the annular rib. A nut sleeve is also provided inside the cover plate, and a ring is provided on the outer surface of the nut sleeve. The ring is snap-connected with the nut sleeve, and connecting frames are fixed on both sides of the ring, and the connecting frame is fixedly connected to the cover plate.

3. The dust filtering device according to claim 2, characterized in that: The inner driving mechanism also includes a mounting bracket fixed to the bottom of the filter cartridge, one side of the mounting bracket is fixed with a first motor, the output shaft of the first motor is fixed with a main bevel gear, the bottom end of the driving screw penetrates the bottom wall of the filter cartridge and is rotatably connected to the bottom wall of the filter cartridge, the bottom end of the driving screw is fixed with an upper bevel gear, the upper bevel gear is meshed with the main bevel gear, the top end of the driving screw penetrates the filter screen and the nut sleeve in sequence, and the driving screw is threadedly connected to the nut sleeve, the inner driving mechanism also includes a plurality of vertical guide rods distributed in an annular array inside the filter cartridge, the two ends of the vertical guide rod are respectively fixed to the annular rib and the inner bottom wall of the filter cartridge, the vertical guide rod is movably connected to the filter screen and the edge of the cover plate, a spring is sleeved on the vertical guide rod, the bottom end of the spring is fixedly connected to the filter screen, and the top end of the spring is fixedly connected to the edge of the cover plate.

4. The dust filtering device according to claim 3, characterized in that: The vertical guide rod includes an upper thick rod portion and a lower thin rod portion, the thin rod portion passes through the filter screen, the thick rod portion passes through the edge of the cover plate, and the spring is sleeved on the outside of the thick rod portion.

5. The dust filtering device according to claim 1, characterized in that: An output pipe is fixed to the output end of the water pump. One end of the output pipe passes through the outside of the base and is fixedly connected to the side wall of the filter cartridge. A valve is installed at the connection between the output pipe and the side wall of the filter cartridge.

6. The dust filtering device according to claim 1, characterized in that: A protective cover is fixed on the support frame, a base shaft is fixedly connected to one side of the base, the base shaft passes through the support frame and is rotatably connected to the support frame, one end of the base shaft extends into the inside of the protective cover and is fixed with a driven gear, a second motor is fixed on the protective cover, an output shaft of the second motor extends into the inside of the protective cover and is fixed with a driving gear, and the driving gear is meshed with the driven gear.

7. The dust filtering device according to claim 3, characterized in that: The inner wall of the collar is provided with an annular groove, the outer sleeve of the nut sleeve is fixedly connected with a limit gear, and the limit gear is located in the annular groove. The connecting frame includes a horizontal tube and a vertical tube fixed in the middle of the horizontal tube. The horizontal tube is connected to the inside of the vertical tube. One end of the horizontal tube is fixedly connected to the collar, and the other end of the horizontal tube passes through the cover plate and is fixedly connected to the cover plate. A clamping assembly is provided in the connecting frame, and the clamping assembly is used to release the clamping of the nut sleeve and the collar. The clamping assembly is also used to position the cover plate.

8. The dust filtering device according to claim 7, characterized in that: The locking assembly includes a third motor fixed inside the vertical tube, the output shaft of the third motor extends to the inside of the horizontal tube and is fixed with a push gear, a push rack is provided inside the horizontal tube, a clamping rod is fixed to one end of the push rack close to the collar, the end of the clamping rod is engaged with the limit gear, and a positioning rod is fixed to the end of the push rack away from the collar.

9. The dust filtering device according to claim 3, characterized in that: The top of the liquid storage chamber is provided with a through hole, and the mounting frame is also provided with a stirring assembly, which is used to configure the solvent in the liquid storage chamber, and the stirring assembly includes a stirring rod rotatably connected to the mounting frame, the bottom end of the stirring rod extends into the liquid storage chamber through the through hole and is fixed with a stirring blade, the top of the stirring rod is provided with a square hole, a square rod is movably inserted in the square hole, a cylinder is fixed on the top of the square rod, a lower bevel gear is fixed on the top of the cylinder, and the lower bevel gear is located directly below the upper bevel gear, the stirring assembly also includes an electric push rod fixed on the mounting frame, the electric push rod is vertically arranged, the output shaft of the electric push rod is fixed with a bearing seat, and the cylinder is rotatably connected to the bearing seat.

10. A powder filtration method for medicinal material identification, characterized by: The powder filtration method for medicinal material identification uses a dust filtration device as described in any one of claims 1 to 9.

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