Environment-friendly traditional Chinese medicinal material freeze-drying device

By introducing a motor-driven bevel gear transmission system and agitating device into the lyophilized medicinal materials, combined with the buffer structure, the problem of insufficient processing volume in large-scale production of the lyophilized medicinal materials is solved, uniform drying of Chinese medicinal materials and stability of the device are achieved, and production efficiency is improved.

CN120385203APending Publication Date: 2025-07-29WENSHAN WEIMEI BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510769952.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-10
Publication Date
2025-07-29

AI Technical Summary

Technical Problem

The existing freeze-drying device of traditional Chinese medicinal materials limits the amount of medicinal materials under a certain equipment space, which cannot meet the needs of large-scale production, affecting production efficiency and capacity.

Method used

The bevel gear transmission system driven by a motor drives the rotating of the drying cylinder, and is equipped with a stirring shaft and a curved stirring rod to initially spread the Chinese medicinal materials. At the same time, the vibration is buffered through the buffer sleeve and the spring structure to ensure the stability of the device and the observation window to monitor the drying process in real time.

Benefits of technology

It realizes the uniform distribution of Chinese medicinal materials in the drying cylinder, improves production efficiency, enhances the stability and practicality of the device, and meets the needs of large-scale production.

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Abstract

The invention relates to the technical field of traditional Chinese medicinal material processing, and discloses an environment-friendly traditional Chinese medicinal material freeze-drying device which comprises a base, a drying cylinder and a cylinder cover, mounting plates are fixed to the two sides of the base, first motors are fixed to the tops of the mounting plates, first bevel gears are fixed to the output shaft ends of the first motors, and second bevel gears are engaged to the first bevel gears; rotating shafts are fixed on the bevel gears II, a fixed plate I is fixed on the rotating shaft on one side, a motor II is mounted on the wall surface of the fixed plate I, a stirring shaft is fixed at the output shaft end of the motor II, and a curved stirring rod is fixed on the side wall of the stirring shaft. According to the traditional Chinese medicinal material drying device, traditional Chinese medicinal materials are preliminarily scattered through the second motor, the stirring shaft and the curved stirring rod, the first bevel gear and the second bevel gear are meshed to drive the drying cylinder to rotate, the position of the traditional Chinese medicinal materials in the drying cylinder is effectively changed, the large-scale production requirement can be met, and therefore the production efficiency is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of Chinese herbal medicine processing, and in particular to an environment-friendly freeze-drying device for Chinese herbal medicines. Background Art

[0002] China is extremely rich in Chinese herbal medicine resources, which are natural medicines and health products. Due to the strong seasonality of the harvest of Chinese herbal medicines, how to ensure that the nutritional components of the medicines are not damaged is the most concerned issue for people. Because the active components of Chinese herbal medicines are mostly thermosensitive, volatile and easily oxidizable, if traditional treatment methods are used, these active components will be greatly lost. With the development of technology, by using vacuum freeze-drying technology, it is possible to effectively maintain the active components, shape and color of the medicines, and extend the shelf life. In recent years, ultrafine powder products prepared after vacuum freeze-drying have been recognized by the market due to their significant advantages and have become a research and development hotspot for Chinese medicine enterprises.

[0003] After retrieval, the publication (announcement) number: CN214009726U discloses an environment-friendly freeze-drying device for Chinese herbal medicines, including support feet. A vacuum freeze-drying machine main body is installed on the top of the support feet. On both sides of the inner wall of the vacuum freeze-drying machine main body, first limit grooves are symmetrically opened. An upward-opening U-shaped frame is arranged between the first limit grooves. First rotating shafts corresponding to the first limit grooves are fixed on the outer walls of both ends of the U-shaped frame. In the middle of the bottom side of the U-shaped frame, fixing ears are symmetrically arranged. Second limit grooves are opened in the middle of the inner walls of the fixing ears. For the environment-friendly freeze-drying device for Chinese herbal medicines of the present invention, Chinese herbal medicines are poured onto the placing plate through the feeding through groove and evenly dispersed. After covering the sealing cover and the cover plate, freeze-drying treatment can be carried out. After the processing is completed, the cover plate is opened, and the hydraulic telescopic rod is contracted downward, so that the U-shaped frame and the outer port of the placing plate are inclined downward, and the Chinese herbal medicines are poured into the medicine collection box placed on the fixed table at one time, and the operation is convenient.

[0004] In the above-mentioned prior art solution, due to the adoption of a static drying mode and flat devices such as placing plates, this design limits the amount of medicine processed under the condition of a certain equipment space, resulting in the inability of the equipment processing capacity to meet the needs of large-scale production. Especially when the demand is large, this design will become a bottleneck, directly affecting the improvement of production efficiency and capacity.

[0005] Therefore, we propose an environment-friendly freeze-drying device for Chinese herbal medicines. Summary of the Invention

[0006] The present invention mainly solves the technical problems existing in the above-mentioned prior art, and provides an environment-friendly freeze-drying device for Chinese herbal medicines.

[0007] To achieve the above object, the present invention adopts the following technical solutions. An environment-friendly Chinese medicinal material freeze-drying device includes a base, a drying cylinder and a cylinder cover. Installation plates are fixedly arranged on both sides of the base. Motors I are fixedly arranged on the tops of the installation plates. Conical gears I are fixedly arranged at the output shaft ends of the motors I. Conical gears II are meshed with the conical gears I respectively. Rotating shafts are fixedly arranged on the conical gears II. A fixing plate I is fixedly arranged on one of the rotating shafts. A motor II is installed on the wall surface of the fixing plate I. A stirring shaft is fixedly arranged at the output shaft end of the motor II. Curved stirring rods are fixedly arranged on the side wall of the stirring shaft. A fixing plate II is fixedly arranged at the bottom of the fixing plate I. A dryer is fixedly arranged on the fixing plate II. The air outlet end of the dryer is communicated with a connecting pipe. The air outlet end of the connecting pipe is communicated with a collecting pipe. A plurality of air outlet openings are communicated with the collecting pipe.

[0008] Preferably, universal wheels are arranged at the four end points of the bottom of the base. The tops of the universal wheels are fixedly connected with buffer sleeves. Buffer sleeve rods are sleeved in the inner cavities of the buffer sleeves. Buffer sliding plates are slidably connected to the buffer sleeve rods. Spring I is sleeved on each buffer sleeve rod. The bottoms of the buffer sleeve rods are fixedly connected with spring II.

[0009] Preferably, limiting grooves are formed on the two side wall surfaces of the inner cavity of the buffer sleeve. Limiting protrusions are fixedly connected to the two sides of the bottom of the buffer sleeve rod.

[0010] Preferably, a plurality of heat dissipation holes are formed in the cylinder cover. The rotating shaft penetrates through the side wall surface of the base and is rotatably connected to the side wall surface of the base.

[0011] Preferably, an observation window is arranged on the front surface of the drying cylinder.

[0012] Preferably, the air outlet end of the air outlet opening is located in the inner cavity of the drying cylinder. The air outlet opening is communicated with the wall surface of the collecting pipe close to the drying cylinder.

[0013] Preferably, spring I is located above the buffer sliding plate. The other ends of spring II are fixedly connected to the wall surface of the inner cavity of the buffer sleeve.

[0014] The present invention provides an environment-friendly Chinese medicinal material freeze-drying device, which has the following beneficial effects:

[0015] 1. For the environment-friendly Chinese medicinal material freeze-drying device, the Chinese medicinal materials are initially scattered by the motor II, the stirring shaft and the curved stirring rods. Through the meshing of the conical gear I and the conical gear II, the drying cylinder is driven to rotate, effectively changing the position of the Chinese medicinal materials in the drying cylinder, meeting the large-scale production requirements, and thus improving the production efficiency.

[0016] 2. For the environment-friendly Chinese medicinal material freeze-drying device, the vibration generated by the bump of the universal wheel is buffered by spring II in the inner cavity of the buffer sleeve. Through the cooperation of the buffer slider and spring I, the vibration generated by the bump of the universal wheel is buffered again, avoiding the influence of the bump on the stability of the equipment.

[0017] 3. The environmentally friendly Chinese herbal medicine freeze-drying device avoids the buffer sleeve rod from being disengaged from the buffer sleeve through the cooperation of the limit groove and the limit convex block, thereby improving the stability of the device.

[0018] 4. The environmentally friendly Chinese herbal medicine freeze-drying device can directly observe the drying situation of the Chinese herbal medicine in the inner cavity of the drying cylinder through the observation window, improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.

[0020] The structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limited conditions for the implementation of the present invention. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.

[0021] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the back of the structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the inner cavity of the drying cylinder structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the disassembly of the buffer sleeve and the buffer sleeve rod structures of the present invention;

[0025] Figure 5 It is a schematic diagram of the inner cavity of the buffer sleeve structure of the present invention.

[0026] Legend Explanation:

[0027] 1. Base; 2. Drying cylinder; 201. Cylinder cover; 202. Heat dissipation holes; 3. Observation window; 4. Mounting plate; 401. First motor; 402. First bevel gear; 403. Second bevel gear; 404. Rotating shaft; 5. First fixing plate; 501. Second motor; 502. Stirring shaft; 503. Curved stirring rod; 6. Second fixing plate; 601. Dryer; 602. Connecting pipe; 603. Collecting pipe; 604. Air outlet; 7. Universal wheel; 8. Buffer sleeve; 801. Limit groove; 9. Buffer sleeve rod; 901. Buffer slide plate; 902. First spring; 903. Limit projection; 10. Second spring. Detailed implementation manners

[0028] 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1: An environment-friendly Chinese herbal medicine freeze-drying device, as Figures 1-4 shown, includes a base 1. The base 1 is of a U-shaped structure as a whole. Mounting plates 4 are fixedly connected to the outer side wall surfaces of both sides of the base 1. First motors 401 are fixedly connected to the tops of the two mounting plates 4. First bevel gears 402 are fixed to the output shaft ends of the two first motors 401. Second bevel gears 403 are meshed with the two first bevel gears 402. The opposite ends of the two second bevel gears 403 are fixedly connected with rotating shafts 404. The two rotating shafts 404 penetrate through the side wall surface of the base 1 and are rotatably connected to the side wall surface of the base 1. A first fixing plate 5 is fixedly connected to one of the rotating shafts 404, and a drying cylinder 2 is fixedly connected to the other rotating shaft 404. A cylinder cover 201 adapted to the drying cylinder 2 is hinged to the top of the drying cylinder 2. A plurality of heat dissipation holes 202 are opened in the cylinder cover 201. An observation window 3 is arranged on the front surface of the drying cylinder 2. Through the observation window 3, the drying condition of the Chinese herbal medicine in the inner cavity of the drying cylinder 2 can be directly seen. A second motor 501 is fixedly installed on the wall surface of the first fixing plate 5 close to the drying cylinder 2. The output shaft end of the second motor 501 penetrates through the side wall surface of the drying cylinder 2 and is fixedly connected with a stirring shaft 502. A curved stirring rod 503 is fixedly connected to the side wall of the stirring shaft 502. A second fixing plate 6 is fixedly connected to the bottom of the first fixing plate 5. A dryer 601 is fixedly connected to the second fixing plate 6. The air outlet end of the dryer 601 is communicated with a connecting pipe 602. The air outlet end of the connecting pipe 602 is communicated with a collecting pipe 603. A plurality of air outlets 604 are communicated with the wall surface of the collecting pipe 603 close to the drying cylinder 2. The air outlet ends of the air outlets 604 are located in the inner cavity of the drying cylinder 2.

[0030] Embodiment 2: An environment-friendly Chinese herbal medicine freeze-drying device, as Figures 1-4As shown in the figure, it includes a base 1. The base 1 is of a U-shaped structure as a whole. Mounting plates 4 are fixedly connected to the outer side wall surfaces of both sides of the base 1. Motors 401 are fixedly connected to the tops of the two mounting plates 4. Conical gears 402 are fixed to the output shaft ends of the two motors 401. Second conical gears 403 are meshed with the two conical gears 402. Fixed plates 5 are fixedly connected to the opposite ends of the two conical gears 403. Rotating shafts 404 are fixedly connected to the opposite ends of the two conical gears 403. The two rotating shafts 404 penetrate through the side wall surfaces of the base 1 and are rotatably connected to the side wall surfaces of the base 1. A first fixing plate 5 is fixedly connected to the rotating shaft 404 on one side. A drying cylinder 2 is fixedly connected to the rotating shaft 404 on the other side. A cylinder cover 201 adapted to the drying cylinder 2 is hinged to the top of the drying cylinder 2. A plurality of heat dissipation holes 202 are formed in the cylinder cover 201. An observation window 3 is arranged on the front surface of the drying cylinder 2. Through the observation window 3, the drying condition of the Chinese medicinal materials in the inner cavity of the drying cylinder 2 can be directly seen. A motor 501 is fixedly installed on the wall surface of the first fixing plate 5 close to the drying cylinder 2. The output shaft end of the motor 501 penetrates through the side wall surface of the drying cylinder 2 and is fixedly connected to a stirring shaft 502. Curved stirring rods 503 are fixedly connected to the side wall of the stirring shaft 502. A second fixing plate 6 is fixedly connected to the bottom of the first fixing plate 5. A dryer 601 is fixedly connected to the second fixing plate 6. An air outlet pipe 602 is communicated with the air outlet end of the dryer 601. A collecting pipe 603 is communicated with the air outlet end of the air outlet pipe 602. A plurality of air outlet openings 604 are communicated with the wall surface of the collecting pipe 603 close to the drying cylinder 2. The air outlet ends of the air outlet openings 604 are located in the inner cavity of the drying cylinder 2.

[0031] Universal wheels 7 are provided at the four end points of the bottom of the base 1. Buffer sleeves 8 are fixedly connected to the tops of the four universal wheels 7. Buffer sleeve rods 9 are sleeved in the inner cavities of the buffer sleeves 8. Buffer sliding plates 901 are slidably connected to the buffer sleeve rods 9. First springs 902 are sleeved on the buffer sleeve rods 9 above the buffer sliding plates 901. Second springs 10 are fixedly connected to the bottoms of the buffer sleeve rods 9. The other ends of the second springs 10 are fixedly connected to the wall surfaces of the inner cavities of the buffer sleeves 8.

[0032] Embodiment 3: An environment-friendly Chinese medicinal material freeze-drying device, as Figures 1-4As shown in the figure, it includes a base 1. The base 1 is of a U-shaped structure as a whole. Mounting plates 4 are fixedly connected to the outer side wall surfaces of both sides of the base 1. Motors 401 are fixedly connected to the tops of the two mounting plates 4. Conical gears 402 are fixed to the output shaft ends of the two motors 401. Conical gears 403 are meshed with the two conical gears 402. Fixed plates 5 are fixedly connected to the opposite ends of the two conical gears 403. The two rotating shafts 404 penetrate the side wall surface of the base 1 and are rotatably connected to the side wall surface of the base 1. A fixed plate 5 is fixedly connected to one of the rotating shafts 404, and a drying cylinder 2 is fixedly connected to the other rotating shaft 404. A cylinder cover 201 adapted to the drying cylinder 2 is hinged to the top of the drying cylinder 2. A plurality of heat dissipation holes 202 are provided on the cylinder cover 201. An observation window 3 is arranged on the front surface of the drying cylinder 2. Through the observation window 3, the drying condition of the Chinese herbal medicines in the inner cavity of the drying cylinder 2 can be directly seen. A motor 501 is fixedly installed on the wall surface of the fixed plate 5 close to the drying cylinder 2. The output shaft end of the motor 501 penetrates the side wall surface of the drying cylinder 2 and is fixedly connected to a stirring shaft 502. Curved stirring rods 503 are fixedly connected to the side wall of the stirring shaft 502. A fixed plate 6 is fixedly connected to the bottom of the fixed plate 5. A dryer 601 is fixedly connected to the fixed plate 6. The air outlet end of the dryer 601 is communicated with a connecting pipe 602. The air outlet end of the connecting pipe 602 is communicated with a collecting pipe 603. A plurality of air outlet holes 604 are communicated with the wall surface of the collecting pipe 603 close to the drying cylinder 2. The air outlet ends of the air outlet holes 604 are located in the inner cavity of the drying cylinder 2.

[0033] Universal wheels 7 are provided at the four end points of the bottom of the base 1. The tops of the four universal wheels 7 are fixedly connected with buffer sleeves 8. Buffer sleeve rods 9 are sleeved in the inner cavities of the buffer sleeves 8. Buffer sliding plates 901 are slidably connected to the buffer sleeve rods 9. First springs 902 are sleeved on the buffer sleeve rods 9 and above the buffer sliding plates 901. Second springs 10 are fixedly connected to the bottoms of the buffer sleeve rods 9. The other ends of the second springs 10 are fixedly connected to the wall surfaces of the inner cavities of the buffer sleeves 8.

[0034] Limit grooves 801 are provided on the two side wall surfaces of the inner cavity of the buffer sleeve 8. Limit bumps 903 are fixedly connected to the two sides of the bottom of the buffer sleeve rod 9 and at positions corresponding to the limit grooves 801.

[0035] The working principle of the present invention:

[0036] In use, open the cylinder cover 201 and put the traditional Chinese medicinal materials to be dried into the inner cavity of the drying cylinder 2. Start the dryer 601 and the second motor 501. The second motor 501 drives the curved stirring rod 503 on the stirring shaft 502 to mix them preliminarily. Start the first motor 401 to drive the rotation of the first bevel gear 402. Since the first bevel gear 402 meshes with the second bevel gear 403, the drying cylinder 2 is driven to rotate, so that all the traditional Chinese medicinal materials inside the drying cylinder 2 can come into contact with the curved stirring rod 503, and the traditional Chinese medicinal materials in the inner cavity of the drying cylinder 2 are continuously turned over.

[0037] In use, when moving the device, the universal wheel 7 is jolted. The universal wheel 7 approaches the buffer slide plate 901. At this time, the spring two 10 in the inner cavity of the buffer sleeve 8 initially buffers the vibration generated by the jolt of the universal wheel 7, and the buffer sleeve 8 continuously approaches the buffer slide plate 901 and, under the action of the spring one 902, buffers the vibration generated by the jolt of the universal wheel 7 again.

[0038] In use, through the mutual cooperation of the limit bump 903 and the limit groove 801, the buffer sleeve rod 9 is limited in the inner cavity of the buffer sleeve 8 to prevent the buffer sleeve rod 9 from being disengaged from the inner cavity of the buffer sleeve 8.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0040] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0041] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless specifically defined otherwise.

[0043] In the present invention, unless otherwise clearly stipulated and defined, the terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0045] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all such changes and improvements fall within the scope of the present invention as claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly freeze-drying device for traditional Chinese medicine, comprising a base (1), a drying cylinder (2) and a cylinder cover (201), characterized in that: On both sides of the base (1), mounting plates (4) are fixed. At the top of each mounting plate (4), a first motor (401) is fixed. At the end of the output shaft of the first motor (401), a first bevel gear (402) is fixed. A second bevel gear (403) is meshed with each first bevel gear (402). A rotating shaft (404) is fixed on each second bevel gear (403). On one side of the rotating shaft (404), a first fixing plate (5) is fixed. On the wall surface of the first fixing plate (5), a second motor (501) is mounted. At the end of the output shaft of the second motor (501), a stirring shaft (502) is fixed. On the side wall of the stirring shaft (502), a curved stirring rod (503) is fixed. At the bottom of the first fixing plate (5), a second fixing plate (6) is fixed. On the second fixing plate (6), a dryer (601) is fixed. The air outlet end of the dryer (601) is communicated with a connecting pipe (602). The air outlet end of the connecting pipe (602) is communicated with a collecting pipe (603). A plurality of air outlet openings (604) are communicated with the collecting pipe (603).

2. The environmentally friendly Chinese medicinal material freeze-drying device according to claim 1, characterized in that: At the four end points of the bottom of the base (1), universal wheels (7) are provided. At the top of each universal wheel (7), a buffer sleeve (8) is fixedly connected. In the inner cavity of each buffer sleeve (8), a buffer sleeve rod (9) is sleeved. A buffer sliding plate (901) is slidably connected to each buffer sleeve rod (9). A first spring (902) is sleeved on each buffer sleeve rod (9). At the bottom of each buffer sleeve rod (9), a second spring (10) is fixedly connected.

3. An environmentally friendly Chinese herbal medicine freeze-drying device according to claim 2, characterized in that: On both side wall surfaces of the inner cavity of the buffer sleeve (8), limiting grooves (801) are opened. On both sides of the bottom of the buffer sleeve rod (9), limiting bumps (903) are fixedly connected.

4. An environmentally friendly Chinese herbal medicine freeze-drying device according to claim 1, characterized in that: A plurality of heat dissipation holes (202) are opened on the cylinder cover (201). The rotating shaft (404) penetrates through the side wall surface of the base (1) and is rotatably connected to the side wall surface of the base (1).

5. An environmentally friendly Chinese herbal medicine freeze-drying device according to claim 1, characterized in that: A viewing window (3) is provided on the front surface of the drying cylinder (2).

6. The environmentally friendly Chinese herbal medicine freeze-drying device according to claim 1, wherein: The air outlet end of the air outlet opening (604) is located in the inner cavity of the drying cylinder (2). The air outlet opening (604) is communicated with the wall surface of the collecting pipe (603) close to the drying cylinder (2).

7. An environmentally friendly Chinese herbal medicine freeze-drying device according to claim 2, characterized in that: The first spring (902) is located above the buffer sliding plate (901). The other ends of the second springs (10) are fixedly connected to the wall surface of the inner cavity of the buffer sleeve (8).

Citation Information

Patent Citations

  • Environment-friendly traditional Chinese medicinal material freeze-drying device

    CN214009726U