A hot air circulation drying equipment for traditional Chinese medicine decoction pieces

Abstract

The present invention relates to a hot air circulation drying device for Chinese herbal medicine slices, and belongs to the technical field of hot air drying devices. The device comprises a box body, one side of which is provided with a box door, a plurality of groups of positioning seats are fixedly arranged inside the box body layer by layer, and gaps are left between each layer, and the spacing is consistent, and a plurality of groups of holding mechanisms are used to hold Chinese herbal medicine slices, and are detachably positioned and connected with the positioning seats. The present invention can achieve the effect of uniformly drying the tablets and improving the drying efficiency, and can also achieve the switching and adjustment of the hot air conveying passage by moving the inner tube up and down, so as to achieve a gentle drying effect, thereby being able to retain the effective ingredients in the tablets to a greater extent; at the same time, after the hot air intermittently passes through the heat-conducting air duct to conduct heat-conducting drying on the tablets, it can be circulated to the hot air blower, so as to achieve the recycling of heat energy while gently drying, and reduce the required energy consumption while improving the drying efficiency, thereby greatly improving the practicality of the entire device.

Description

Technical Field

[0001] The present invention belongs to the technical field of hot air drying equipment and relates to a hot air circulation drying equipment for traditional Chinese medicine decoction pieces. Background Art

[0002] Traditional Chinese medicine decoction pieces are the Chinese medicinal materials that have been processed according to the theory of traditional Chinese medicine and the methods of traditional Chinese medicine processing, and can be directly used in clinical practice of traditional Chinese medicine. This concept indicates that there is no absolute boundary between Chinese medicinal materials and traditional Chinese medicine decoction pieces. Traditional Chinese medicine decoction pieces include some Chinese medicine slices processed in the place of origin, original medicinal material decoction pieces, and decoction pieces cut and processed.

[0003] The traditional methods for drying traditional Chinese medicine decoction pieces include natural drying in the sun, drying in the shade, or using equipment such as an oven. Although the traditional natural drying method in the sun is milder, it is very time-consuming and only suitable for certain medicinal materials. While modern hot air drying is more efficient than traditional natural drying in the sun, the drying method is not mild enough. The hot air continuously blows on the surface of the medicinal materials. The whole drying process not only has high energy consumption but also causes the loss of effective components of the medicinal materials. At the same time, a large amount of heat energy in the hot air cannot be fully utilized during the continuous air supply drying of the surface of the medicinal materials, and is directly discharged when the temperature is relatively high, and the effect of heat energy recycling cannot be achieved. In addition, the hot air blows from the bottom up, with only one air outlet provided at the bottom. The lower layer is heated to a higher temperature, and the temperature gradually decreases to the upper layer, and it will carry water vapor. Therefore, the drying speed of the lower layer is faster than that of the upper layer, resulting in uneven heating of the upper and lower layers. Therefore, we propose a hot air circulation drying equipment for traditional Chinese medicine decoction pieces to solve the above-mentioned problems. Summary of the Invention

[0004] In view of this, in order to solve the problems that the traditional hot air drying method is not mild enough, not only has high energy consumption, but also causes the loss of effective components of the medicinal materials, and at the same time the heat energy cannot be recycled and the heating is uneven, the present invention provides a hot air circulation drying equipment for traditional Chinese medicine decoction pieces.

[0005] To achieve the above object, the present invention provides the following technical solutions: It includes a box body, and a box door is provided on one side of the box body.

[0006] Multiple groups of positioning seats are fixedly arranged layer by layer inside the box body, and there are gaps between each layer, and the gaps are of the same distance.

[0007] Multiple groups of placing mechanisms are used for placing traditional Chinese medicine decoction pieces and are detachably and positionally connected with the positioning seats. After the placing mechanisms are filled with traditional Chinese medicine decoction pieces, they are placed in the box body layer by layer through the multiple groups of positioning seats to dry the traditional Chinese medicine decoction pieces.

[0008] A hot air conveying mechanism is provided on the top of the box body and is connected to the multiple groups of positioning seats through pipelines at the same time for conveying hot air.

[0009] An exhaust duct is provided at the top of the box body for discharging the humid and hot air.

[0010] A driving mechanism is provided at the top of the box body for simultaneously driving multiple groups of positioning seats to rotate. When the positioning seats rotate, they can simultaneously drive the holding mechanism to rotate, achieving the effect of uniform drying. During the rotation of the holding mechanism, hot air can be intermittently blown onto the traditional Chinese medicine slices, and part of the hot air can circulate and flow back to the hot air conveying mechanism. While achieving an energy-saving effect, it can also dry the traditional Chinese medicine slices in a gentle drying manner, effectively retaining the active ingredients in the medicine slices.

[0011] Furthermore, the positioning seat includes a partition fixedly connected inside the box body. The top of the partition is rotatably connected with a rotating ring. Above the inner wall of the rotating ring, a supporting positioning ring is integrally formed. A plurality of positioning holes are annularly and equidistantly formed at the top of the supporting positioning ring.

[0012] Furthermore, the holding mechanism includes a holding tray that is adaptively and snap-connected with the rotating ring. A plurality of air-permeable holes are evenly distributed on the bottom wall of the holding tray. A plurality of positioning rods that are inserted and matched with the positioning holes are fixedly connected to the bottom of the holding tray in an annular and equidistant manner.

[0013] Furthermore, an annular handle is fixedly connected to the outer wall of the holding tray.

[0014] Furthermore, the hot air conveying mechanism includes a hot air blower fixedly connected to the outer wall of the top of the box body. An air inlet pipe is fixedly connected to the air inlet end of the hot air blower. An air outlet pipe is fixedly connected to the air outlet end of the hot air blower. The other end of the air outlet pipe hermetically penetrates the top of the box body and is fixedly connected to the inner wall of the bottom of the box body.

[0015] Furthermore, a hot air conveying pipe is fixedly penetrated inside the partition. One end of the hot air conveying pipe is fixedly communicated with one side of the air outlet pipe. The other end of the hot air conveying pipe passes through the top of the partition and extends upward to the inside of the rotating ring and is located at the center position of the rotating ring.

[0016] Furthermore, a plurality of air supply pipes are annularly and equidistantly penetrated and fixedly connected to the outer wall of the hot air conveying pipe inside the rotating ring. A plurality of air outlet heads are arranged side by side and equidistantly on the top of the outer walls of the plurality of air supply pipes.

[0017] Furthermore, the driving mechanism includes a driving motor fixedly connected to the outer wall of the top of the box body. A rotating rod is rotatably connected to the top of the partition at the lowermost position. The top end of the rotating rod sequentially rotates through the tops of the remaining partitions and is rotatably connected to the inner wall of the top of the box body. And the output shaft of the driving motor rotates through the top of the box body and is fixedly connected to the top end of the rotating rod.

[0018] Furthermore, a plurality of gears are fixedly sleeved on the outer wall of the rotating rod. An external tooth ring that meshes with the corresponding gear is fixedly sleeved on the outer wall of the rotating ring.

[0019] Furthermore, a fixing ring is fixedly connected to the top of the partition, the outer wall of the fixing ring is rotatably fitted with the inner wall of the rotating ring, and a plurality of protrusions that intermittently interfere with the positioning rod are fixedly connected to the top of the fixing ring in an annular shape and equidistantly.

[0020] Furthermore, the tops of the plurality of protrusions are each provided with a second inclined surface.

[0021] Furthermore, a docking tube is rotatably connected to the bottom inner wall of the holding tray, and the docking tube has a closed top and an open bottom structure, with its top extending upward into the holding tray and its bottom extending downward and fitting with the top of the hot air delivery pipe.

[0022] Furthermore, the docking pipe is located on the outer wall of the containing plate and is equidistantly and fixedly connected with multiple heat-conducting air supply pipes in a circular shape. A hot air circulation and delivery component connected to the heat-conducting air supply pipes is provided in the box body, and the hot air circulation and delivery component is connected to the air inlet pipe for circulating and delivering hot air.

[0023] Furthermore, a wind control component is provided in the hot air delivery pipe for changing the delivery path of the hot air so that the hot air is intermittently delivered back and forth between the heat-conducting air delivery pipe and the air supply pipe.

[0024] Furthermore, the docking tube is provided with a first docking ring fixedly sleeved on the outer wall below the holding plate, the bottom of the first docking ring is annular and equidistantly fixedly connected with a plurality of docking rods, the hot air delivery tube is provided with a second docking ring fixedly sleeved on the outer wall at one end inside the rotating ring, the top of the second docking ring is annular and equidistantly provided with a plurality of docking holes corresponding to the docking rods.

[0025] Furthermore, the hot air circulation and delivery assembly includes a hot air circulation return pipe fixedly connected to the top of the lowest partition, the top of the hot air circulation return pipe is fixedly passed through the tops of the remaining partitions and the top of the box body in sequence and is fixedly connected to an air box, the air box is fixedly installed on the top outer wall of the box body, and one end of the air inlet pipe is fixedly connected to one side of the air box, and the side of the air box away from the air inlet pipe is fixedly connected to the air intake pipe.

[0026] Furthermore, an air guide ring is rotatably fitted on the inner wall of the holding plate, an air guide cavity is provided inside the air guide ring, and ends of multiple heat-conducting air delivery pipes away from the docking pipe are connected to the air guide cavity, a first U-shaped air guide pipe connected to the air guide cavity is fixedly provided on one side of the top of the air guide ring, and a plurality of L-shaped pipe heads corresponding to and plugged into the first U-shaped air guide pipe are provided on the outer wall of the hot air circulation return pipe.

[0027] Furthermore, the wind control component includes an inner tube that is sealed and slidably connected to the hot air delivery pipe inside the inner space of the rotating ring. The inner tube is a closed top and open bottom structure. The outer wall of the inner tube is annular and has multiple air outlet holes that are intermittently connected to the air supply pipe at equal intervals.

[0028] Furthermore, the outer wall of the hot air delivery duct is annular and equidistantly fixed with multiple second U-shaped air ducts, the multiple second U-shaped air ducts are respectively located directly above the corresponding multiple air supply ducts, and both ends of the second U-shaped air ducts are connected to the hot air delivery duct, the bottom port of the second U-shaped air duct is intermittently connected to the air outlet, and the top port of the second U-shaped air duct is located above the top of the inner tube and below the bottom end of the docking tube.

[0029] Furthermore, the top of the partition is located on one side of the inner space of the rotating ring and is fixedly connected to an L-shaped plate, the top of the L-shaped plate is slidably penetrated by an L-shaped rod, one end of the L-shaped rod penetrates one side of the hot air delivery pipe and is fixedly connected to the outer wall of one side of the inner tube, the outer wall of the L-shaped rod is sleeved with a return spring, and the top of the return spring is fixedly connected to the bottom of the L-shaped plate, the bottom end of the return spring is fixedly connected to the outer wall of the L-shaped rod, and one side of the outer wall of the hot air delivery pipe is provided with a strip hole used in conjunction with the L-shaped rod.

[0030] Furthermore, the bottom of the containing tray is fixedly connected with an arc-shaped strip plate that intermittently contacts the top end of the L-shaped rod, and both sides of the bottom of the arc-shaped strip plate are provided with a first inclined surface.

[0031] The beneficial effects of the present invention are as follows: the present invention can not only drive the Chinese herbal medicine slices to rotate by quickly positioning the holding plate and connecting it to the rotating ring, but also can move the tablets through the heat-conducting air duct during the rotation, and at the same time cooperate with the vibration of the holding plate to achieve the effect of uniformly drying the tablets and improving the drying efficiency, and can also switch and adjust the hot air delivery path through the up and down movement of the inner tube, so that the hot air acts on the tablets intermittently to achieve a gentle drying effect, thereby retaining the effective ingredients in the tablets to a greater extent; at the same time, after the hot air intermittently passes through the heat-conducting air duct to conduct heat drying on the tablets, it can be circulated to the hot air blower, realizing the recycling of heat energy while gently drying, reducing the required energy consumption while improving the drying efficiency, and greatly improving the practicality of the entire device.

[0032] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] Figure 1 The present invention is a stereoscopic diagram of the overall structure of a hot air circulation drying device for Chinese herbal medicine slices.

[0035] Figure 2 This is a three-dimensional view of the overall structure of a hot air circulation drying device for traditional Chinese medicine decoction pieces of the present invention after removing the box body.

[0036] Figure 3 This is a three-dimensional view of the connection structure between the holding mechanism and the positioning seat of a hot air circulation drying device for traditional Chinese medicine decoction pieces of the present invention.

[0037] Figure 4 For the present invention Figure 3 Three-dimensional exploded view of the overall structure.

[0038] Figure 5 For the present invention Figure 4 Three-dimensional bottom view of the overall structure.

[0039] Figure 6 This is a three-dimensional exploded view of the overall structure of the holding mechanism of a hot air circulation drying device for traditional Chinese medicine decoction pieces of the present invention.

[0040] Figure 7 This is a three-dimensional sectional view of the overall connection structure of the air guide ring of a hot air circulation drying device for traditional Chinese medicine decoction pieces of the present invention.

[0041] Figure 8 This is a three-dimensional exploded view of the overall structure of the positioning seat of a hot air circulation drying device for traditional Chinese medicine decoction pieces of the present invention.

[0042] Figure 9 For the present invention Figure 3 Three-dimensional sectional view of the overall structure.

[0043] Figure 10 For the present invention Figure 9 Further sectional view of the overall structure.

[0044] Figure 11 This is a three-dimensional sectional view of the overall docking structure between the hot air delivery pipe and the docking pipe of a hot air circulation drying device for traditional Chinese medicine decoction pieces of the present invention.

[0045] Figure 12 This is a three-dimensional bottom view of the inner pipe connection structure of a hot air circulation drying device for traditional Chinese medicine decoction pieces of the present invention.

[0046] Figure 13 This is a three-dimensional sectional view of the overall structure of a hot air circulation drying device for traditional Chinese medicine decoction pieces of the present invention.

[0047] Reference numerals: 1, box body; 2, hot air blower; 3, partition board; 4, box door; 5, rotating ring; 6, air outlet pipe; 7, external tooth ring; 8, support positioning ring; 81, positioning hole; 9, hot air conveying pipe; 91, strip-shaped hole; 10, placing tray; 101, air permeable hole; 11, air inlet pipe; 12, annular grip; 13, positioning rod; 14, arc-shaped strip board; 141, first inclined surface; 15, air guiding ring; 151, air guiding cavity; 16, second docking ring; 161, docking hole; 17, fixing ring; 18, convex block; 181, second inclined surface; 19, docking pipe; 20, first U-shaped air guiding pipe; 21, heat conduction air conveying pipe; 22, first docking ring; 23, docking rod; 24, hot air circulation return pipe; 25, air supply pipe; 26, air outlet head; 27, rotating rod; 28, second U-shaped air guiding pipe; 29, L-shaped pipe head; 30, gear; 31, inner pipe; 311, air outlet hole; 32, L-shaped rod; 33, L-shaped plate; 34, return spring; 35, driving motor; 36, air box; 37, air inlet pipe; 38, exhaust pipe. Detailed implementation manners

[0048] The following specific examples illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0049] Embodiment 1, as Figures 1-13 shown, a hot air circulation drying device for traditional Chinese medicine decoction pieces includes a box body 1. A box door 4 is provided on one side of the box body 1. A plurality of positioning seats are fixedly provided layer by layer inside the box body 1, and a gap is left between each layer, and the gaps are of the same distance. The positioning seat includes a partition board 3 fixedly connected to the inside of the box body 1. A rotating ring 5 is rotatably connected to the top of the partition board 3. A support positioning ring 8 is integrally formed above the inner wall of the rotating ring 5. A plurality of positioning holes 81 are formed at equal intervals in a ring shape on the top of the support positioning ring 8.

[0050] The drying device further includes a plurality of holding mechanisms detachably and positionally connected to the positioning seat for holding traditional Chinese medicine pieces. After the holding mechanisms are loaded with traditional Chinese medicine pieces, they are placed in the box body 1 layer by layer through the plurality of positioning seats to dry the traditional Chinese medicine pieces. The holding mechanism includes a holding tray 10 adaptively clamped with the rotating ring 5. A plurality of air holes 101 are evenly distributed on the bottom wall of the holding tray 10. A plurality of positioning rods 13 inserted and matched with the positioning holes 81 are fixedly connected to the bottom of the holding tray 10 at equal intervals in a ring shape. First, the traditional Chinese medicine pieces to be dried are placed in the holding grooves on the holding tray 10. The holding tray 10 can be stably placed on the ground or a tabletop through the plurality of positioning rods 13. A plurality of air holes 101 are provided on the bottom wall of the holding groove, and the traditional Chinese medicine pieces will not leak out through the air holes 101. On the one hand, it can be used for the hot air to pass through to complete drying. On the other hand, when loading the traditional Chinese medicine pieces, by shaking the holding tray 10, the fine powder or dust can be screened out first and then put into the box body 1 for drying. After loading an appropriate amount of traditional Chinese medicine pieces, the entire holding tray 10 is lifted and moved into the box body 1, so that the holding tray 10 is located directly above the rotating ring 5, and the positioning rods 13 are aligned with the positioning holes 81. The holding tray 10 is clamped in the rotating ring 5 through the positioning rods 13 passing through the positioning holes 81, and the holding tray 10 is supported and positioned by the supporting positioning ring 8. Conversely, the holding tray 10 can be quickly taken out by lifting it upward. An annular handle 12 is fixedly connected to the outer wall of the holding tray 10, and it is convenient to lift and move the holding tray 10 through the annular handle 12.

[0051] The drying device further includes a hot air conveying mechanism provided at the top of the box body 1, which is connected to multiple positioning seats through pipelines at the same time for the conveyance of hot air. The hot air conveying mechanism includes a hot air blower 2 fixedly connected to the outer wall of the top of the box body 1. An air inlet pipe 11 is fixedly connected to the air inlet end of the hot air blower 2, and an air outlet pipe 6 is fixedly connected to the air outlet end of the hot air blower 2. The other end of the air outlet pipe 6 hermetically penetrates the top of the box body 1 and is fixedly connected to the inner wall of the bottom of the box body 1. A discharge air pipe 38 is provided at the top of the box body 1 for discharging the humid hot air. When the hot air blower 2 is turned on, the outside air enters the hot air blower 2 from the air inlet pipe 11, and at the same time, the air is heated. The heated hot air is blown out from the air outlet pipe 6 for the conveyance of hot air. A hot air conveying pipe 9 is fixedly penetrated inside the partition plate 3. One end of the hot air conveying pipe 9 is fixedly communicated with one side of the air outlet pipe 6. The other end of the hot air conveying pipe 9 passes through the top of the partition plate 3 and extends upward to the inside of the rotating ring 5 and is located at the center position of the rotating ring 5. The hot air blown out from the hot air blower 2 can enter the hot air conveying pipe 9 along the air outlet pipe 6 and convey the hot air to the inner space of the rotating ring 5. A plurality of air delivery pipes 25 are fixedly penetrated and connected to the outer wall of the hot air conveying pipe 9 located inside the rotating ring 5 at equal intervals in a ring shape. A plurality of air outlet heads 26 are arranged side by side at equal intervals on the top outer walls of the plurality of air delivery pipes 25. The hot air is simultaneously conveyed into the plurality of air delivery pipes 25 from the hot air conveying pipe 9 and finally blown upward from the plurality of air outlet heads 26. Since the holding tray 10 is positioned and clamped on the rotating ring 5, and the air delivery pipes 25 are located below the holding tray 10 and in the inner space of the rotating ring 5, the hot air blown upward from the air outlet heads 26 can directly blow on the Chinese herbal medicine pieces in the holding tray 10 through the ventilation holes 101, thereby realizing the drying effect on the Chinese herbal medicine pieces. During the process of drying the Chinese herbal medicine pieces by the hot air, a certain amount of moisture is carried in the hot air, and these humid hot air are finally discharged out of the box body 1 through the discharge air pipe 38.

[0052] The present invention can be used in the field of hot air circulation drying equipment for Chinese herbal medicine pieces, and can also be applicable to other fields of the present invention.

[0053] Embodiment 2, this embodiment is a further improvement of the previous embodiment: As Figures 1-10As shown in the figure, the drying equipment further includes a driving mechanism arranged on the top of the box body 1, which is used to drive multiple positioning seats to rotate simultaneously, and when the positioning seats rotate, they can drive the containing mechanism to rotate simultaneously, achieving the effect of uniform drying; during the rotation of the containing mechanism, hot air can be intermittently blown on the Chinese herbal medicine slices, and part of the hot air can circulate and flow back to the hot air conveying mechanism, which can not only achieve the energy-saving effect, but also dry the Chinese herbal medicine slices in a mild drying method, effectively retaining the active ingredients in the medicine slices. The driving mechanism includes a driving motor 35 fixedly connected to the outer wall of the top of the box body 1. A rotating rod 27 is rotatably connected to the top of the lowest partition plate 3. The top of the rotating rod 27 sequentially passes through the tops of the remaining partition plates 3 in a rotating manner and is rotatably connected to the inner wall of the top of the box body 1. The output shaft of the driving motor 35 passes through the top of the box body 1 in a rotating manner and is fixedly connected to the top of the rotating rod 27. A plurality of gears 30 are fixedly sleeved on the outer wall of the rotating rod 27, and an external tooth ring 7 meshing with the corresponding gear 30 is fixedly sleeved on the outer wall of the rotating ring 5. Starting the driving motor 35 to drive the rotating rod 27 to rotate, through the meshing movement of the gear 30 and the external tooth ring 7, multiple rotating rings 5 can be driven to rotate simultaneously, and then through the positioning and clamping placement of the containing tray 10 in the rotating ring 5, the containing tray 10 can be driven to rotate synchronously; since the hot air conveying pipe 9 and the plurality of air supply pipes 25 are in a static air supply state, at this time, by continuously rotating the Chinese herbal medicine slices, the uniformity of drying the Chinese herbal medicine slices can be improved, so that the Chinese herbal medicine slices can all be exposed to the hot air for drying.

[0054] Example 3, this example is a further improvement of the previous example: As Figures 1-10 shown in the figure, a fixed ring 17 is fixedly connected to the top of the partition plate 3. The outer wall of the fixed ring 17 is rotatably attached to the inner wall of the rotating ring 5. The top of the fixed ring 17 is fixedly connected with a plurality of bumps 18 that are intermittently in contact with the positioning rod 13 at equal intervals in a ring shape. The tops of the plurality of bumps 18 are all provided with a second inclined surface 181. The inclination direction of the second inclined surface 181 is set from low to high in the rotation direction of the rotating ring 5. During the process of the rotating ring 5 driving the containing tray 10 to rotate, the positioning rod 13 simultaneously rotates and moves along with the containing tray 10. When the bottom end of the positioning rod 13 comes into contact with the second inclined surface 181 during movement, the containing tray 10 can be driven to move upward by a certain distance in the rotating ring 5 through the plurality of positioning rods 13. When the positioning rod 13 disengages from the contact with the entire bump 18, it quickly moves downward and resets under the action of the self-weight of the containing tray 10, thereby realizing the vibration effect on the internal Chinese herbal medicine slices; through this setting, during the process of the containing tray 10 driving the Chinese herbal medicine slices to rotate and dry, with vibration, the overall drying effect can be further improved.

[0055] Example 4, this example is a further improvement of the previous example: As Figures 1-11As shown, a docking pipe 19 is rotatably connected through the bottom inner wall of the holding tray 10. The docking pipe 19 has a closed top end and an open bottom end. Its top end extends upward into the holding tray 10, and its bottom end extends downward and is in positioning plug-in fit with the top end of the hot air delivery pipe 9. A plurality of heat conduction air delivery pipes 21 are fixedly connected through the outer wall of the docking pipe 19 in the holding tray 10 at equal intervals in a ring shape. A hot air circulation delivery assembly connected to the heat conduction air delivery pipes 21 is provided in the box body 1, and the hot air circulation delivery assembly is connected to the air inlet pipe 11 for circulating and delivering hot air. A wind control assembly is provided in the hot air delivery pipe 9 for changing the delivery path of the hot air so that the hot air intermittently blows back and forth between the heat conduction air delivery pipes 21 and the air delivery pipe 25. When the holding tray 10 is positioned and placed on the rotating ring 5, as Figure 11 shown, the docking pipe 19 can be positioned and inserted into the top port of the hot air delivery pipe 9. Since the hot air delivery pipe 9 is in a static air delivery state, both the air delivery pipe 25 and the heat conduction air delivery pipes 21 are in a static state. When the wind control assembly is controlled to conduct the hot air delivery pipe 9 and the air delivery pipe 25, the docking pipe 19 is in a closed state, and the hot air flows through the air delivery pipe 25 and blows out from the air outlet head 26 to achieve the effect of blowing and drying the Chinese herbal medicine pieces. When the wind control assembly is controlled to conduct the hot air delivery pipe 9 and the docking pipe 19, the air delivery pipe 25 is in a closed state, and the hot air flows through the docking pipe 19 and is delivered through the heat conduction air delivery pipes 21. At this time, the hot air does not directly blow on the Chinese herbal medicine pieces, but the temperature of the hot air is transferred to the Chinese herbal medicine pieces through the heat conduction air delivery pipes 21 for heating and drying, so as to achieve a mild heating effect. In addition, since the hot air does not contact the Chinese herbal medicine pieces and does not directly flow in the box body 1, the hot air flowing through the heat conduction air delivery pipes 21 does not carry moisture, and then flows back to the hot air blower 2 through the hot air circulation delivery assembly and is sent into the box body 1 again for drying utilization, which not only reduces the emission of hot and humid air, but also can reduce the energy consumption generated by the hot air blower 2. In addition, since the heat conduction air delivery pipes 21 are in a static state, and the holding tray 10 drives the Chinese herbal medicine pieces to rotate and move, therefore, the heat conduction air delivery pipes 21 can also achieve the effect of stirring the Chinese herbal medicine pieces. Coupled with the intermittent vibration of the holding tray 10, the turning effect of the Chinese herbal medicine pieces can be further improved, thereby improving the drying uniformity and drying efficiency. Of course, in order to effectively achieve the turning effect or make the turning effect better, heat conduction fins can be provided on the outer wall of the heat conduction air delivery pipes 21. The heat conduction fins can be in the shape of flakes or protrusions. The specific shape is not specifically limited here, as long as it can meet the requirements of increasing the heat conduction effect on the one hand and being able to turn the Chinese herbal medicine pieces more effectively on the other hand.

[0056] In one aspect of this embodiment, a first docking ring 22 is fixedly sleeved on the outer wall of the docking pipe 19 below the holding tray 10. A plurality of docking rods 23 are fixedly connected to the bottom of the first docking ring 22 at equal intervals in a circular shape. A second docking ring 16 is fixedly sleeved on the outer wall of one end of the hot air delivery pipe 9 inside the rotating ring 5. A plurality of docking holes 161 corresponding to the docking rods 23 are provided at equal intervals in a circular shape on the top of the second docking ring 16. During the process of placing the holding tray 10, the bottom end of the docking pipe 19 will directly insert into the top end of the hot air delivery pipe 9, and at the same time, the docking rods 23 are correspondingly inserted into the docking holes 161. Finally, the bottom of the first docking ring 22 just fits on the top of the second docking ring 16, so as to achieve the positioning and plugging effect of the docking pipe 19, facilitating the holding tray 10 not to drive the heat conduction air delivery pipe 21 to rotate during the rotation process of driving the traditional Chinese medicine pieces, thus realizing the effect of stirring the traditional Chinese medicine pieces.

[0057] Example 5, this example is a further improvement of the previous example: As Figures 1-11As shown, the hot air circulation conveying assembly includes a hot air circulation return pipe 24 fixedly connected to the top of the lowest partition 3, the top of the hot air circulation return pipe 24 is fixedly passed through the tops of the remaining partitions 3 and the top of the box body 1 in sequence and is fixedly connected with an air box 36, the air box 36 is fixedly installed on the top outer wall of the box body 1, and one end of the air inlet pipe 11 is fixedly connected to one side of the air box 36, and the side of the air box 36 away from the air inlet pipe 11 is fixedly connected to an air inlet pipe 37, the inner wall of the holding plate 10 is rotatably fitted with an air guide ring 15, the interior of the air guide ring 15 is provided with an air guide cavity 151, and the ends of multiple heat-conducting air delivery pipes 21 away from the docking pipe 19 are all connected with the air guide cavity 151, a first U-shaped air guide pipe 20 connected with the air guide cavity 151 is fixedly provided on one side of the top of the air guide ring 15, and the outer wall of the hot air circulation return pipe 24 is provided with multiple L-shaped pipe heads 29 corresponding to the first U-shaped air guide pipe 20 for plugging and matching. First, when positioning the holding tray 10 and clamping it on the rotating ring 5, first support the positioning rod 13 and place it on the supporting positioning ring 8, then use your hand to move the first U-shaped air duct 20 or the heat-conducting air duct 21 to drive the air guide ring 15 to rotate as a whole, so that the first U-shaped air duct 20 is aligned with the L-shaped tube head 29; at this time, one hand holds the corresponding position of the first U-shaped air duct 20 and the L-shaped tube head 29, and the other hand drives the holding tray 10 to rotate through the annular handle 12, thereby driving the positioning rod 13 to rotate and move, and when the positioning rod 13 corresponds to the positioning hole 81, the entire holding tray 10 will fall directly downward and be positioned and clamped in the rotating ring 5. At the same time, one end of the first U-shaped air duct 20 is also directly moved downward and inserted into the corresponding L-shaped tube head 29, thereby completing the positioning and placement of the holding tray 10. Since the first U-shaped air duct 20 corresponds to the L-shaped pipe head 29 in the design, the docking rod 23 also corresponds to the docking hole 161. Therefore, when the placing tray 10 falls, the docking rod 23 will be directly inserted into the docking hole 161 to complete the positioning and insertion between the docking pipe 19 and the hot air delivery pipe 9. After the hot air completes heat exchange and drying in the heat-conducting air delivery pipe 21, the hot air still has a relatively high temperature. At this time, the hot air enters the air guide cavity 151 from the heat-conducting air delivery pipe 21, and is then transported from the first U-shaped air duct 20 and the docking L-shaped pipe head 29 to the hot air circulation return pipe 24, and finally enters the air box 36. Since the hot air blower 2 is in a continuous air supply, the refluxed hot air can be directly sent back into the hot air blower 2. Since the hot air at this time has a certain temperature, it does not require additional large power consumption to heat it, so it can play an effect of reducing energy consumption. When the hot air flows through the air supply pipe 25 and is blown out from the air outlet 26, the air required by the hot air blower 2 is directly sucked into the air box 36 from the air intake pipe 37 and then sent to the hot air blower 2 for heating.In order to further reduce energy consumption and make full use of the thermal energy remaining in the humid and hot air, the exhaust duct 38 can be extended into the air box 36 to preheat the inhaled air. This technology belongs to the existing conventional technology in this field, so it will not be specifically described in this application. Additionally, in order to ensure the airtightness of the hot air flow, using sealing rings to connect between the pipes also belongs to conventional technology.

[0058] Example 6. This example is a further improvement of the previous example: As Figures 1-12As shown in the figure, the risk control component includes an inner tube 31 that is hermetically and slidably connected to the inside of the hot air delivery pipe 9 on one side of the inner space of the rotating ring 5. The inner tube 31 has a closed top and an open bottom structure. A plurality of air outlet holes 311 that are intermittently communicated with the air delivery pipe 25 are arranged at equal intervals in a ring shape on the outer wall of the inner tube 31. A plurality of second U-shaped air guide pipes 28 are fixedly communicated with the outer wall of the hot air delivery pipe 9 at equal intervals in a ring shape. The plurality of second U-shaped air guide pipes 28 are respectively located directly above the corresponding air delivery pipes 25. Both ends of the second U-shaped air guide pipe 28 are communicated with the hot air delivery pipe 9. The bottom port of the second U-shaped air guide pipe 28 is intermittently communicated with the air outlet hole 311. The top port of the second U-shaped air guide pipe 28 is located above the top of the inner tube 31 and below the bottom of the docking pipe 19. A L-shaped plate 33 is fixedly connected to the top of the partition 3 on one side of the inner space of the rotating ring 5. An L-shaped rod 32 is slidably penetrated through the top of the L-shaped plate 33. One end of the L-shaped rod 32 penetrates through one side of the hot air delivery pipe 9 and is fixedly connected to the outer wall of one side of the inner tube 31. A return spring 34 is sleeved on the outer wall of the L-shaped rod 32. The top end of the return spring 34 is fixedly connected to the bottom of the L-shaped plate 33. The bottom end of the return spring 34 is fixedly connected to the outer wall of the L-shaped rod 32. A strip-shaped hole 91 that cooperates with the L-shaped rod 32 is opened on one side of the outer wall of the hot air delivery pipe 9. An arc-shaped strip plate 14 that intermittently abuts against the top end of the L-shaped rod 32 is fixedly connected to the bottom of the storage tray 10. First inclined surfaces 141 are provided on both sides of the bottom of the arc-shaped strip plate 14. During the rotation of the storage tray 10, the arc-shaped strip plate 14 will be driven to rotate and move. When the first inclined surface 141 of the arc-shaped strip plate 14 comes into contact with the top end of the L-shaped rod 32 and moves, it can push the L-shaped rod 32 downward and stretch the return spring 34. At the same time, the L-shaped rod 32 drives the inner tube 31 to move downward. When the arc-shaped strip plate 14 disengages from the contact with the L-shaped rod 32, under the elastic force of the return spring 34, the L-shaped rod 32 is driven to move upward and reset, and then drives the inner tube 31 to move upward, so as to achieve the effect that the inner tube 31 moves up and down reciprocally with the rotation of the storage tray 10. By controlling the rotation of the driving motor 35 and cooperating with the differential rotation of the gear 30 and the outer tooth ring 7, the rotation speed of the storage tray 10 can be set to be relatively slow, so that the intermittent time for the inner tube 31 to move up and down and stay is relatively long. In addition, the arc-shaped strip plate 14 can also be set in a semi-circular shape. That is to say, when the storage tray 10 rotates half a circle, the inner tube 31 starts to move upward or downward and quickly remains stationary. This effect can be set according to the specific situation. According to the length of the arc-shaped strip plate 14, the length of the upward stay and the downward stay time of the inner tube 31 can be set. Such as Figure 11As shown, at this time, the inner tube 31 is in an upward stationary state. The inner tube 31 is connected to the bottom port of the second U-shaped air duct 28, while the air supply duct 25 is closed. At this time, hot air is conveyed from the inner tube 31 through the second U-shaped air duct 28 into the docking pipe 19. When the inner tube 31 moves downward and stays, the inner tube 31 blocks the bottom port of the second U-shaped air duct 28 and is connected to the air supply duct 25. At this time, hot air is conveyed from the inner tube 31 through the air outlet holes 311 into the air supply duct 25, thereby realizing the switching control effect of the hot air passage, achieving a mild drying effect and the recycling of hot air. This not only reduces energy consumption, makes the drying efficiency higher and the drying uniformity better, but also can effectively retain the active ingredients of the medicinal materials.

[0059] However, as is well known to those skilled in the art, the working principles and wiring methods of the hot air blower 2 and the drive motor 35 are common knowledge. They both belong to conventional means or well-known common sense and will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the present technical solution, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A hot air circulation drying equipment for Chinese herbal medicine slices, characterized in that: include: A box body (1), wherein a box door (4) is provided on one side of the box body (1); A plurality of sets of positioning seats are fixedly arranged inside the box body (1) layer by layer, with gaps left between each layer and the spacings being consistent; Multiple groups of holding mechanisms are used to hold Chinese herbal medicine pieces and are detachably connected to the positioning seats. After the holding mechanisms are loaded with Chinese herbal medicine pieces, the holding mechanisms are placed layer by layer in the box (1) through the multiple groups of positioning seats to dry the Chinese herbal medicine pieces. A hot air conveying mechanism is arranged on the top of the box body (1) and is connected to the plurality of positioning seats through pipelines to convey the hot air; A plurality of groups of positioning seats are each provided with a hot air delivery pipe (9) and are connected to the hot air delivery mechanism for delivering hot air, wherein the outer wall of the hot air delivery pipe (9) is provided with a plurality of air supply pipes (25) which are equidistantly and fixedly connected thereto in an annular shape so that the hot air is delivered upward from the bottom of the containing mechanism; A plurality of groups of the containing mechanisms are each provided with a butt joint (19), and a plurality of heat-conducting air delivery pipes (21) are fixedly connected to the butt joint (19) at equal intervals and in a ring shape. A hot air circulation conveying assembly connected to the heat-conducting air delivery pipes (21) is provided in the box body (1), and the hot air circulation conveying assembly is connected to the hot air delivery mechanism for circulating and conveying hot air; The hot air delivery pipe (9) is provided with a wind control component for changing the delivery path of the hot air so that the hot air is intermittently delivered back and forth between the heat-conducting air delivery pipe (21) and the air supply pipe (25); An exhaust pipe (38) is provided at the top of the box body (1) and is used to discharge hot and humid air; The driving mechanism is arranged at the top of the box body (1) and is used to simultaneously drive the plurality of positioning seats to rotate, and when the positioning seats rotate, the containing mechanism can be driven to rotate at the same time, so as to achieve a uniform drying effect; during the rotation of the containing mechanism, hot air can be blown intermittently onto the Chinese herbal medicine slices, and part of the hot air can be circulated back to the hot air conveying mechanism, thereby achieving an energy-saving effect and drying the Chinese herbal medicine slices in a gentle drying manner, thereby effectively retaining the active ingredients in the tablets.

2. The hot air circulation drying equipment for Chinese herbal medicine slices according to claim 1, characterized in that: The positioning seat comprises a partition (3) fixedly connected to the inside of the box body (1); a rotating ring (5) is rotatably connected to the top of the partition (3); a supporting positioning ring (8) is integrally formed above the inner wall of the rotating ring (5); and a plurality of positioning holes (81) are equidistantly provided in a ring-shaped manner on the top of the supporting positioning ring (8).

3. The hot air circulation drying equipment for Chinese herbal medicine slices according to claim 2, characterized in that: The containing mechanism comprises a containing plate (10) adapted to be snap-fitted with the rotating ring (5), the bottom wall of the containing plate (10) being evenly distributed with a plurality of air holes (101), and the bottom of the containing plate (10) being annularly equidistantly fixedly connected with a plurality of positioning rods (13) pluggably engaged with the positioning holes (81); An annular handle (12) is fixedly connected to the outer wall of the containing tray (10).

4. The hot air circulation drying equipment for Chinese herbal medicine slices according to claim 3, characterized in that: The hot air conveying mechanism comprises a hot air blower (2) fixedly connected to the top outer wall of the box body (1), the air inlet end of the hot air blower (2) is fixedly connected to an air inlet pipe (11), the air outlet end of the hot air blower (2) is fixedly connected to an air outlet pipe (6), and the other end of the air outlet pipe (6) is sealed and passes through the top of the box body (1) and is fixedly connected to the bottom inner wall of the box body (1); The hot air delivery pipe (9) is fixedly arranged inside the partition (3), one end of the hot air delivery pipe (9) is fixedly connected to one side of the air outlet pipe (6), and the other end of the hot air delivery pipe (9) passes through the top of the partition (3) and extends upward to the inside of the rotating ring (5), and is located at the center of the rotating ring (5); The plurality of air supply pipes (25) are all located on the inner side of the corresponding rotating ring (5), and the tops of the outer walls of the plurality of air supply pipes (25) are all provided with a plurality of air outlets (26) arranged side by side and equidistantly.

5. The hot air circulation drying equipment for Chinese herbal medicine slices according to claim 4, characterized in that: The driving mechanism comprises a driving motor (35) fixedly connected to the top outer wall of the box body (1); the top of the lowest partition (3) is rotatably connected to a rotating rod (27); the top end of the rotating rod (27) rotates through the tops of the remaining partitions (3) in turn and is rotatably connected to the top inner wall of the box body (1); and the output shaft of the driving motor (35) rotates through the top of the box body (1) and is fixedly connected to the top end of the rotating rod (27); The outer wall fixing sleeve of the rotating rod (27) is provided with a plurality of gears (30), and the outer wall fixing sleeve of the rotating ring (5) is provided with an outer gear ring (7) meshing with corresponding gears (30).

6. The hot air circulation drying equipment for Chinese herbal medicine slices according to claim 5, characterized in that: The top of the partition (3) is fixedly connected to a fixed ring (17), the outer wall of the fixed ring (17) is rotatably fitted with the inner wall of the rotating ring (5), and the top of the fixed ring (17) is annularly and equidistantly fixedly connected to a plurality of protrusions (18) that intermittently contact and cooperate with the positioning rod (13); The tops of the plurality of protrusions (18) are each provided with a second inclined surface (181).

7. The hot air circulation drying equipment for Chinese herbal medicine slices according to claim 5, characterized in that: The butt joint pipe (19) passes through and is rotatably connected to the bottom inner wall of the receiving tray (10). The butt joint pipe (19) is a structure with a closed top and an open bottom. Its top extends upward into the receiving tray (10), and its bottom extends downward and is positioned and plugged into the top of the hot air delivery pipe (9). The plurality of heat-conducting air delivery pipes (21) are all located in the corresponding receiving tray (10).

8. The hot air circulation drying equipment for Chinese herbal medicine slices according to claim 7, characterized in that: The docking tube (19) is provided with a first docking ring (22) fixedly sleeved on the outer wall below the holding plate (10); the bottom of the first docking ring (22) is annular and fixedly connected with a plurality of docking rods (23) at equal intervals; the hot air delivery tube (9) is provided with a second docking ring (16) fixedly sleeved on the outer wall of one end of the hot air delivery tube (9) located inside the rotating ring (5); the top of the second docking ring (16) is provided with a plurality of docking holes (161) corresponding to the docking rods (23) and equidistantly arranged in annular shape.

9. The hot air circulation drying equipment for Chinese herbal medicine slices according to claim 8, characterized in that: The hot air circulation conveying assembly comprises a hot air circulation return pipe (24) fixedly connected to the top of the lowest partition (3), the top end of the hot air circulation return pipe (24) is fixedly passed through the tops of the remaining partitions (3) and the top of the box body (1) in sequence and is fixedly connected to an air box (36), the air box (36) is fixedly mounted on the top outer wall of the box body (1), one end of the air inlet pipe (11) is fixedly connected to one side of the air box (36), and the side of the air box (36) away from the air inlet pipe (11) is fixedly connected to an air inlet pipe (37); An air guide ring (15) is rotatably fitted on the inner wall of the receiving tray (10), an air guide cavity (151) is provided inside the air guide ring (15), and ends of a plurality of heat-conducting air delivery pipes (21) away from the docking pipe (19) are all connected to the air guide cavity (151), a first U-shaped air guide pipe (20) connected to the air guide cavity (151) is fixedly provided on one side of the top of the air guide ring (15), and a plurality of L-shaped pipe heads (29) correspondingly plugged into and mating with the first U-shaped air guide pipe (20) are provided on the outer wall of the hot air circulation return pipe (24).

10. The hot air circulation drying equipment for Chinese herbal medicine slices according to claim 7 or 9, characterized in that: The wind control component comprises an inner tube (31) which is sealingly and slidably connected to the hot air delivery tube (9) located inside one side of the inner space of the rotating ring (5); the inner tube (31) is a structure with a closed top and an open bottom; the outer wall of the inner tube (31) is annularly provided with a plurality of air outlet holes (311) which are intermittently connected to the air supply tube (25) at equal intervals; The outer wall of the hot air delivery pipe (9) is annular and equidistantly fixed with a plurality of second U-shaped air guide pipes (28), the plurality of second U-shaped air guide pipes (28) are respectively located directly above the corresponding plurality of air supply pipes (25), and both ends of the second U-shaped air guide pipes (28) are connected to the hot air delivery pipe (9), the bottom end port of the second U-shaped air guide pipe (28) is intermittently connected to the air outlet hole (311), and the top end port of the second U-shaped air guide pipe (28) is located above the top end of the inner pipe (31) and below the bottom end of the butt pipe (19); The top of the partition (3) is located at one side of the inner space of the rotating ring (5) and is fixedly connected to an L-shaped plate (33); the top of the L-shaped plate (33) is slidably penetrated and connected to an L-shaped rod (32); one end of the L-shaped rod (32) penetrates one side of the hot air conveying pipe (9) and is fixedly connected to the outer wall of one side of the inner pipe (31); a return spring (34) is sleeved on the outer wall of the L-shaped rod (32); the top of the return spring (34) is fixedly connected to the bottom of the L-shaped plate (33); the bottom end of the return spring (34) is fixedly connected to the outer wall of the L-shaped rod (32); and a strip hole (91) for use with the L-shaped rod (32) is opened on one side of the outer wall of the hot air conveying pipe (9); The bottom of the receiving tray (10) is fixedly connected to an arc-shaped strip plate (14) that intermittently contacts the top of the L-shaped rod (32), and first inclined surfaces (141) are provided on both sides of the bottom of the arc-shaped strip plate (14).

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