Chinese herbal medicine crushing device used in hospital traditional Chinese medicine pharmacy

Abstract

The invention discloses a Chinese herbal medicine crushing device for a hospital traditional Chinese medicine pharmacy. The Chinese herbal medicine crushing device comprises a shell, a coarse grinding mechanism and a fine grinding mechanism; the shell comprises an upper shell and a lower shell; a coarse grinding mechanism is movably mounted in the upper shell; the fine grinding mechanism is movably mounted in the lower shell; the coarse grinding mechanism comprises grinding wheels symmetrically arranged in the middle of the upper shell, sealing plugs rotationally connected with the grinding wheels, a sieve tray detachably mounted at the lower end of the upper shell, a liquid inlet pipe and a liquid outlet pipe; one end of the rolling wheel is rotationally connected with the sealing plug, and the other end of the rolling wheel is detachably connected with the motor shaft; a liquid inlet pipe and a liquid outlet pipe are installed on the two sides of the lower portion of the sealing plug in a mirroring mode; an interlayer is arranged in the sieve tray, a liquid inlet guide pipe and a liquid discharge guide pipe are arranged on the two sides of the sieve tray respectively and connected with the interlayer, and a guide pipe is arranged on the sieve tray and connected with an ultrasonic generator; liquid circulation in the sieve tray is achieved through cooperation of the liquid inlet guide pipe and the liquid drainage guide pipe, liquid vibration in an interlayer of the sieve tray is controlled through the ultrasonic generator, and the sieve tray is driven to vibrate for sieving.

Description

Technical Field

[0001] The present invention relates to the technical field of traditional Chinese medicine processing, and particularly to a Chinese herbal medicine pulverizing device used in a hospital Chinese medicine pharmacy. Background Art

[0002] As a key step in traditional Chinese medicine preparation, Chinese medicine pulverization has an important impact on the quality and efficacy of traditional Chinese medicine preparations. However, traditional Chinese herbal medicine pulverizing devices have many deficiencies in aspects such as pulverization efficiency, particle size uniformity, energy consumption control, and temperature management.

[0003] 1. Low pulverization efficiency and uneven particle size: Due to structural limitations, traditional equipment often can only achieve a single pulverization process, resulting in low pulverization efficiency and uneven particle size distribution of the pulverized Chinese herbal medicines. Such uneven particle sizes not only affect the appearance and taste of traditional Chinese medicine preparations, but more importantly, they will affect the release of active ingredients and bioavailability of the drugs, thereby affecting the therapeutic effect. Therefore, improving pulverization efficiency and achieving particle size uniformity are important directions for improving traditional equipment.

[0004] 2. High energy consumption and temperature control problems: During the long-term high-speed operation of traditional Chinese herbal medicine pulverizing devices, the medicinal materials are prone to overheating, which will then damage the active ingredients therein, affecting the quality and efficacy of traditional Chinese medicine preparations. In addition, high energy consumption is also a major drawback of traditional equipment, increasing the operating costs of hospital Chinese medicine pharmacies.

[0005] Therefore, the present invention discloses a Chinese herbal medicine pulverizing device used in a hospital Chinese medicine pharmacy to solve the technical problems that traditional Chinese herbal medicine pulverizing devices have obvious deficiencies in aspects such as pulverization efficiency, particle size uniformity, energy consumption control, and temperature management, and cannot meet the high-quality and high-efficiency requirements of hospital Chinese medicine pharmacies for Chinese herbal medicine pulverization. Summary of the Invention

[0006] To achieve the above object, the present invention is realized through the following technical solutions. A Chinese herbal medicine pulverizing device used in a hospital Chinese medicine pharmacy includes: a housing, a coarse grinding mechanism, and a fine grinding mechanism; The housing includes an upper housing and a lower housing; the coarse grinding mechanism is movably installed inside the upper housing; the fine grinding mechanism is movably installed inside the lower housing; The coarse grinding mechanism includes a roller symmetrically arranged in the middle of the upper housing, a sealing plug rotatably connected to the roller, a sieve plate detachably installed at the lower end of the upper housing, a liquid inlet pipe, and a liquid discharge pipe; the inside of the roller is hollow, one end is rotatably connected to the sealing plug, and the other end is detachably connected to the motor shaft; the liquid inlet pipe and the liquid discharge pipe are mirror-installed on both sides of the sealing plug; by the oppositely rotating rollers arranged symmetrically, the Chinese medicine is broken and ground, and the liquid circulation inside the roller is controlled through the liquid inlet pipe and the discharge pipe to cool the medicine and the roller; A sandwich layer is provided inside the sieve tray. Liquid inlet pipes and liquid discharge pipes are symmetrically arranged on one side of the sieve tray and connected to the sandwich layer, and a conduit is provided on the sieve tray to connect to an ultrasonic generator. The cooperation of the liquid inlet pipe and the liquid discharge pipe realizes the liquid circulation inside the sieve tray, and the ultrasonic generator controls the vibration of the liquid in the sandwich layer of the sieve tray to drive the sieve tray to vibrate and screen the materials. Furthermore, a through slot is opened at the lower part of the upper housing corresponding to the lower end of the sieve tray, facilitating the discharge of the remaining drugs after screening for secondary pulverization. A trapezoidal feeding hopper is provided at the upper end of the upper housing. Furthermore, the ends of the liquid inlet pipe and the liquid discharge pipe are respectively movably connected to a liquid extraction pump. The cooperation of the liquid inlet pipe and the liquid discharge pipe realizes the liquid circulation inside the rolling wheel. Furthermore, a storage hopper is provided on the outer wall of the upper end of the lower housing corresponding to the lower end of the through slot to store and collect the large-particle drugs after screening. Supports are provided at the four corners of the lower end of the lower housing to keep the housing stable. Furthermore, the fine grinding mechanism includes multiple pairs of grinding wheels symmetrically arranged in the middle of the lower housing, a sieve tray 1 detachably installed at the lower end of the lower housing, a sealing plug 1 rotatably connected to the grinding wheel, and a liquid inlet pipe 1 and a liquid discharge pipe 1 movably connected to the sealing plug 1. The grinding wheel is hollow inside, and the grinding wheel is rotatably connected to the lower housing. One end of the grinding wheel is rotatably connected to the sealing plug 1, and the other end is detachably connected to the motor shaft. And the multiple pairs of symmetrically arranged grinding wheels are arranged in an up-and-down distribution. The tooth pitch and tooth gap of the grinding teeth of the grinding wheel gradually decrease from top to bottom, and both the maximum tooth pitch and the maximum tooth gap of the grinding teeth of the grinding wheel are smaller than the tooth pitch and tooth gap of the rolling wheel. The drugs are gradually ground by the synchronous relative rotation of multiple pairs of grinding wheels. The liquid inlet pipe 1 and the liquid discharge pipe 1 are respectively connected to the sealing plug 1. The ends of the liquid inlet pipe 1 and the liquid discharge pipe 1 are respectively movably connected to a liquid extraction pump. The cooperation of the liquid inlet pipe 1 and the liquid discharge pipe 1 realizes the liquid circulation inside the rolling wheel.

[0007] The beneficial effects of the present invention are as follows: The present invention discloses a Chinese herbal medicine pulverizing device used in a hospital pharmacy, including: a housing, a coarse grinding mechanism, and a fine grinding mechanism. The present invention is provided with a cooperation between the coarse grinding mechanism and the fine grinding mechanism. The drugs discharged from the feeding hopper are crushed and ground by the relative rotation of the rolling wheels, and then screened by the sieve tray, and subjected to primary grinding and crushing. The large-particle drugs are collected and then poured into the feeding hopper for crushing and grinding to ensure the particle uniformity of the primary grinding. Then, through the relative rotation of multiple pairs of symmetrically arranged grinding wheels with gradually decreasing tooth pitch and tooth gap, the coarsely ground drugs after screening are subjected to secondary pulverization, and after screening by the sieve tray, the grinding of the drugs is completed. In the present invention, through the mutual cooperation between the coarse grinding and the fine grinding and during the fine grinding process, through the grinding of the grinding teeth with gradually decreasing tooth pitch and tooth gap, the pulverizing efficiency and the particle uniformity of the drugs are ensured. In the present invention, during the rough grinding and fine grinding processes, the liquid circulation inside the rolling wheel is realized through the liquid inlet pipe in cooperation with the liquid discharge pipe, and the liquid circulation of the grinding wheel is realized through the first liquid inlet pipe in cooperation with the first liquid discharge pipe; the rolling wheel, the grinding wheel and the sieve plate are cooled, so as to avoid the technical problem that during the grinding and crushing process, the high-speed moving rolling wheel and grinding wheel have too high temperatures, which easily cause the medicinal materials to overheat, damage the active ingredients of the medicine, and affect the quality and efficacy of the traditional Chinese medicine preparation; and in the present invention, during the sieving process between the rough grinding and the fine grinding, the liquid circulation inside the sieve plate is realized through the cooperation of the liquid inlet conduit and the liquid discharge conduit, so as to cool the medicine after rough grinding, and further avoid the overheating of the medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below.

[0009] Figure 1 is an overall structural schematic diagram of a Chinese herbal medicine crushing device used in a hospital pharmacy; Figure 2 is an overall structural schematic diagram of a Chinese herbal medicine crushing device used in a hospital pharmacy; Figure 3 is a sectional structural schematic diagram of a Chinese herbal medicine crushing device used in a hospital pharmacy; Figure 4 is a structural schematic diagram of the rolling wheel of a Chinese herbal medicine crushing device used in a hospital pharmacy; Figure 5 is a sectional view of the rolling wheel of a Chinese herbal medicine crushing device used in a hospital pharmacy; Figure 6 is a structural schematic diagram of the sieve plate of a Chinese herbal medicine crushing device used in a hospital pharmacy; Figure 7 is a sectional structural schematic diagram of the sieve plate of a Chinese herbal medicine crushing device used in a hospital pharmacy.

[0010] In the drawings, the list of components represented by each reference numeral is as follows: 1 - housing, 101 - upper housing, 1011 - feed hopper, 102 - lower housing, 1021 - storage hopper, 1022 - bracket, 2 - rough grinding mechanism, 201 - rolling wheel, 2011 - sealing plug, 2012 - liquid inlet pipe, 2013 - liquid discharge pipe, 202 - sieve plate, 20201 - interlayer, 2021 - liquid inlet conduit, 2022 - liquid discharge conduit, 2023 - ultrasonic generator, 3 - fine grinding mechanism, 301 - grinding wheel, 3011 - sealing plug one, 3012 - first liquid inlet pipe, 3013 - second liquid discharge pipe, B - liquid. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0011] The present invention discloses a Chinese herbal medicine pulverizing device for use in a hospital Chinese pharmacy, comprising: a housing 1, a coarse grinding mechanism 2, and a fine grinding mechanism 3; The housing 1 includes an upper housing 101 and a lower housing 102; the coarse grinding mechanism 2 is movably installed inside the upper housing 101; the fine grinding mechanism 3 is movably installed inside the lower housing 102; The coarse grinding mechanism 2 includes rolling wheels 201 symmetrically arranged in the middle of the upper housing 101, a sealing plug 2011 rotatably connected to the rolling wheels 201, a sieve plate 202 detachably installed at the lower end of the upper housing 101, and a liquid inlet pipe 2012 and a liquid discharge pipe 2013; the inside of the rolling wheel 201 is hollow, one end is rotatably connected to the sealing plug 2011, and the other end is detachably connected to the motor shaft; the liquid inlet pipe 2012 and the liquid discharge pipe 2013 are mirror-installed on both sides below the sealing plug 2011; and the rolling wheels 201 arranged symmetrically rotate towards each other to crush and grind Chinese medicine. A sandwich layer 20201 is arranged inside the sieve plate 202, a liquid inlet conduit 2021 and a liquid discharge conduit 2022 are respectively arranged on both sides of the sieve plate 202 to connect the sandwich layer 20201, and an ultrasonic generator 2023 is arranged on the sieve plate 202 through a conduit connection; the liquid B inside the sieve plate 202 is circulated through the cooperation of the liquid inlet conduit 2021 and the liquid discharge conduit 2022, and the ultrasonic generator 2023 controls the vibration of the liquid B in the sandwich layer 20201 of the sieve plate 202 to drive the sieve plate 202 to vibrate and screen.

[0012] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Embodiment 1

[0013] As Figure 1-7 shown in the schematic structural diagram of the device of the present invention, in the present invention, a housing 1, a coarse grinding mechanism 2, and a fine grinding mechanism 3 are provided; The housing 1 includes an upper housing 101 and a lower housing 102; the coarse grinding mechanism 2 is movably installed inside the upper housing 101; the fine grinding mechanism 3 is movably installed inside the lower housing 102; The coarse grinding mechanism 2 includes rolling wheels 201 symmetrically arranged in the middle of the upper housing 101, a sealing plug 2011 rotatably connected to the rolling wheels 201, a sieve plate 202 detachably installed at the lower end of the upper housing 101, and a liquid inlet pipe 2012 and a liquid discharge pipe 2013; the inside of the rolling wheel 201 is hollow, one end is rotatably connected to the sealing plug 2011, and the other end is detachably connected to the motor shaft; the liquid inlet pipe 2012 and the liquid discharge pipe 2013 are mirror-installed on both sides below the sealing plug 2011; and the rolling wheels 201 arranged symmetrically rotate towards each other to crush and grind Chinese medicine. A sandwich layer 20201 is arranged inside the sieve plate 202. Liquid inlet pipes 2021 and liquid discharge pipes 2022 are respectively arranged on both sides of the sieve plate 202 to connect with the sandwich layer 20201, and a conduit is arranged on the sieve plate 202 to connect with an ultrasonic generator 2023. The liquid B inside the sieve plate 202 is circulated through the cooperation of the liquid inlet pipes 2021 and the liquid discharge pipes 2022, and the ultrasonic generator 2023 is used to control the vibration of the liquid B in the sandwich layer 20201 of the sieve plate 202, driving the sieve plate 202 to vibrate for sieving. In this embodiment, a through groove is opened at the lower part of the upper shell 101 corresponding to the lower end position of the sieve plate 202, facilitating the discharge and collection of the remaining medicine after sieving and then performing secondary coarse grinding and refinement. A trapezoidal feed hopper 1011 is arranged at the upper end of the upper shell 101. The upper shell 101 can be made of aluminum alloy with low price, high strength and convenient cleaning. The medicine added into the feed hopper 1011 is coarsely ground and crushed by the rotating roller 201 that rotates relatively synchronously. In this embodiment, the ends of the liquid inlet pipe 2012 and the liquid discharge pipe 2013 are respectively movably connected to a liquid extraction pump. The liquid B inside the roller 201 is circulated through the cooperation of the liquid inlet pipe 2012 and the liquid discharge pipe 2013 to control the surface temperature of the roller 201 and prevent the temperature from being too high and damaging the drug activity. In this embodiment, a storage hopper 1021 is arranged on the outer wall of the upper end of the lower shell 102 corresponding to the lower end position of the through groove. Support brackets 1022 are arranged at the four corners of the lower end of the lower shell 102 to keep the stability of the shell 1. The storage hopper 1021 is a U-shaped frame storage hopper 1021, which can directly receive the sieved medicine through the storage hopper 1021, or an active medicine box can be added in the storage hopper 1021 for medicine storage. In this embodiment, the sieve plate 202 is inclined, and the inclination angle ranges from 45° to 60°. A number of fine sieve holes are arranged in an array on the sieve plate 202, and a sandwich layer 20201 is arranged on the wall of the sieve plate 202. The liquid B in the sandwich layer 20201 inside the sieve plate 202 is circulated through the liquid inlet pipes 2021 and the liquid discharge pipes 2022 to reduce the surface temperature of the sieve plate 202 and cool the medicine sieved by the sieve plate 202, preventing the decomposition of the active ingredients of the medicine and the reduction of the drug effect due to the excessive temperature of the medicine during the coarse grinding process. And an ultrasonic generator 2023 is arranged to emit ultrasonic waves to the liquid B in the sandwich layer 20201, driving the vibration on the surface of the sieve plate 202 through the liquid B medium to realize the vibration sieving of the medicine, and vibrating the large particle medicine to roll into the storage hopper 1021 for collection. In this embodiment, the fine grinding mechanism 3 includes multiple pairs of grinding wheels 301 symmetrically arranged in the middle of the lower shell 102, a sieve plate 202-1 detachably installed at the lower end of the lower shell 102, a sealing plug 3011 rotatably connected to the grinding wheel 301, and a liquid inlet pipe 3012 and a liquid discharge pipe 2013-1 movably connected to the sealing plug 3011. The grinding wheel 301 is hollow inside, and the grinding wheel 301 is rotatably connected to the lower housing 102. One end of the grinding wheel 301 is rotatably connected to the first sealing plug 3011, and the other end is detachably connected to the motor shaft; and multiple pairs of symmetrically arranged grinding wheels 301 are arranged vertically; the pitch and clearance of the grinding teeth of the grinding wheel 301 gradually decrease from top to bottom, and the maximum pitch and maximum clearance of the grinding teeth of the grinding wheel 301 are both smaller than the pitch and clearance of the rolling wheel 201; The first sealing plug 3011 is respectively connected to the first liquid inlet pipe 3012 and the first liquid discharge pipe 2013; The ends of the first liquid inlet pipe 3012 and the first liquid discharge pipe 2013 are respectively movably connected to the liquid extraction pump; In this embodiment, the liquid B in the rolling wheel 201, the grinding wheel 301, and the sieve plate 202 can be formulated with common tap water or other coolants in the hospital for cooling, or water or coolant with a lower temperature can be selected to enhance the cooling effect on the rolling wheel 201, the sieve plate 202, the grinding wheel 301, and the drug; The coarsely ground drug is ground multiple times by multiple pairs of vertically arranged grinding wheels 301, and the pitch and clearance of the grinding teeth of the grinding wheel 301 gradually decrease from top to bottom, gradually improving the fineness of the drug grinding from top to bottom to ensure the uniform crushing of the drug; then, the first liquid inlet pipe 3012 and the first liquid discharge pipe 2013 cooperate to realize the circulation of the liquid B inside the rolling wheel 201, reduce the surface temperature of several grinding wheels 301, and avoid the rapid increase in the drug temperature and the degradation of the drug activity caused by the multiple grinding of multiple groups of grinding wheels 301 during the fine grinding process.

[0014] Working principle By connecting and assembling the liquid inlet pipe 2012, the liquid discharge pipe 2013, the liquid inlet conduit 2021, the liquid discharge conduit 2022, the first liquid inlet pipe 3012, and the first liquid discharge pipe 2013 to the liquid extraction pump, and connecting the liquid extraction pump to the prepared coolant; and assembling the rolling wheel 201 and the grinding wheel 301 with the driving motor, by starting the power supply, drugs are added into the housing 1 from the feed hopper 1011. The drugs added into the housing 1 first fall between the symmetrically arranged rolling wheels 201. The synchronously rotating rolling wheels 201 crush and grind the drugs to achieve the coarse grinding of the drugs. At the same time, the liquid discharge pipe 2013 and the liquid inlet pipe 2012 continuously inject the liquid B into the rolling wheel 201 and extract the liquid B to realize the circulation of the liquid B inside the rolling wheel 201 and cool the rolling wheel 201; The crushed and ground medicine falls on the sieve tray 202. The liquid inlet conduit 2021 and the liquid discharge conduit 2022 inject liquid B into the interior of the sieve tray 202 and extract liquid B, so as to realize the circulation of liquid B inside the sieve tray 202 and cool down the sieve tray 202; under the action of the ultrasonic generator 2023, the liquid B inside the sieve tray 202 drives the sieve tray 202 to vibrate, and the coarsely ground medicine on the surface of the sieve tray 202 is vibrated and sieved. The medicine that meets the particle size requirements falls into the interior of the lower housing 102, and the medicine that does not meet the particle size requirements rolls into the storage hopper 1021 along the inclined sieve tray 202 for collection. After collection, the medicine that does not meet the particle size requirements is poured back into the feed hopper 1011 for re-grinding; The coarsely ground medicine is gradually ground by multiple pairs of grinding wheels 301 with gradually decreasing tooth pitches and tooth clearances from top to bottom, further reducing the particle size of the medicine. And during the fine grinding process, there is also a liquid inlet pipe 3012 and a liquid discharge pipe 2013 to control the circulation of liquid B inside the grinding wheel 301, ensuring the stability of the medicine temperature during the fine grinding process and avoiding the loss of the activity of the medicine.

[0015] In summary, in the present invention, a Chinese herbal medicine crushing device for use in a hospital pharmacy is disclosed, including: a housing 1, a coarse grinding mechanism 2, and a fine grinding mechanism 3; In the present invention, the coarse grinding mechanism 2 and the fine grinding mechanism 3 are arranged in cooperation. The medicine discharged from the material reduction hopper is crushed and ground by the relative rotation of the rolling wheels 201, and is sieved by the sieve tray 202, and is subjected to primary grinding and crushing. The large-particle medicine is collected and poured into the feed hopper 1011 for crushing and grinding to ensure the particle uniformity of the primary grinding; through the relative rotation of multiple pairs of symmetrically arranged grinding wheels 301 with gradually decreasing tooth pitches and tooth clearances, the coarsely ground medicine is subjected to secondary crushing, and after being sieved by the sieve tray 202, the grinding of the medicine is completed; in the present invention, through the mutual cooperation between the coarse grinding and the fine grinding and during the fine grinding process, through the grinding of the grinding teeth with gradually decreasing tooth pitches and tooth clearances, the crushing efficiency and the particle uniformity of the medicine are ensured; In the present invention, during the coarse grinding and the fine grinding processes, the circulation of liquid B inside the rolling wheels 201 is realized through the cooperation of the liquid inlet pipe 2012 and the liquid discharge pipe 2013, and the circulation of liquid B of the grinding wheels 301 is realized through the cooperation of the liquid inlet pipe 3012 and the liquid discharge pipe 2013; the cooling of the rolling wheels 201, the grinding wheels 301 and the sieve tray 202 is realized, avoiding the technical problem that during the grinding and crushing process, the high-speed moving rolling wheels 201 and the grinding wheels 301 have too high a temperature, which easily causes the medicinal materials to overheat, damage the active ingredients of the medicine, and affect the quality and efficacy of the Chinese medicine preparation; and in the present invention, during the sieving process between the coarse grinding and the fine grinding, the circulation of liquid B inside the sieve tray 202 is realized through the cooperation of the liquid inlet conduit 2021 and the liquid discharge conduit 2022, cooling the coarsely ground medicine and further avoiding the overheating of the medicine.

[0016] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described above.

Claims

1. A Chinese herbal medicine crushing device used in a hospital Chinese medicine pharmacy, characterized in that: include: Shell, rough grinding mechanism, fine grinding mechanism; The housing comprises an upper housing and a lower housing; a rough grinding mechanism is movably installed inside the upper housing; and a fine grinding mechanism is movably installed inside the lower housing; The coarse grinding mechanism comprises a wheel symmetrically arranged in the middle of the upper shell, a sealing plug rotatably connected to the wheel, a sieve plate detachably mounted at the lower end of the upper shell, a liquid inlet pipe and a liquid discharge pipe; the wheel is hollow inside, one end of which is rotatably connected to the sealing plug, and the other end of which is detachably connected to the motor shaft; the liquid inlet pipe and the liquid discharge pipe are mirror-mounted on both sides of the sealing plug; the symmetrically arranged wheels rotate in opposite directions to crush and grind the Chinese medicine, and the liquid circulation inside the wheel is controlled by the liquid inlet pipe and the discharge pipe to cool the medicine and the wheel; An interlayer is arranged inside the sieve plate, a liquid inlet conduit and a liquid discharge conduit are symmetrically arranged on one side of the sieve plate to connect the interlayer, and a conduit is arranged on the sieve plate to connect the ultrasonic generator; liquid circulation inside the sieve plate is realized by the cooperation of the liquid inlet conduit and the liquid discharge conduit, and the vibration of the liquid in the interlayer of the sieve plate is controlled by the ultrasonic generator, thereby driving the sieve plate to vibrate and screen.

2. According to claim 1, a Chinese herbal medicine crushing device for use in a hospital Chinese medicine pharmacy is characterized in that: A through slot is provided at the lower part of the upper shell body corresponding to the lower end of the sieve plate, so as to facilitate the discharge of the remaining sieved medicine for secondary crushing; a stepped feed hopper is provided at the upper end of the upper shell body.

3. According to claim 1, a Chinese herbal medicine crushing device for use in a hospital Chinese medicine pharmacy is characterized in that: The ends of the liquid inlet pipe and the liquid discharge pipe are respectively movably connected to the liquid pump; the liquid circulation inside the wheel is realized by the liquid inlet pipe cooperating with the liquid discharge pipe.

4. According to claim 1, a Chinese herbal medicine crushing device for use in a hospital Chinese medicine pharmacy is characterized in that: A storage hopper is arranged on the outer wall of the upper end of the lower shell body corresponding to the lower end of the through slot to store and collect the large-particle medicine after screening; and brackets are arranged at the four corners of the lower end of the lower shell body to keep the shell body stable.

5. According to claim 1, a Chinese herbal medicine crushing device for use in a hospital Chinese medicine pharmacy is characterized in that: The fine grinding mechanism comprises a plurality of pairs of grinding wheels symmetrically arranged in the middle of the lower housing, a sieve plate detachably mounted at the lower end of the lower housing, a sealing plug rotatably connected to the grinding wheel, and a liquid inlet pipe and a liquid discharge pipe movably connected to the sealing plug; The grinding wheel is hollow inside, and is rotatably connected to the lower shell, one end of the grinding wheel is rotatably connected to a sealing plug, and the other end is detachably connected to a motor shaft; and multiple pairs of symmetrically arranged grinding wheels are arranged up and down; the grinding tooth pitch and tooth gap of the grinding wheel gradually decrease from top to bottom, and the maximum tooth pitch and maximum tooth gap of the grinding teeth of the grinding wheel are both smaller than the tooth pitch and tooth gap of the driving wheel; the medicine is ground step by step by synchronously rotating multiple pairs of grinding wheels relative to each other; The sealing plug 1 is respectively connected to a liquid inlet pipe 1 and a liquid discharge pipe 1; The ends of the liquid inlet pipe 1 and the liquid discharge pipe 1 are respectively movably connected to the liquid pump; the liquid circulation inside the impeller is realized by the cooperation of the liquid inlet pipe 1 and the liquid discharge pipe 1.

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