Separating device for plant extraction and processing and purifying process thereof

Abstract

The invention belongs to the technical field of plant extraction, and particularly relates to a separation device for plant extraction and a processing and purifying technology thereof.The separation device comprises an evaporation assembly, a stirring assembly is arranged in the evaporation assembly, an end cover assembly is arranged above the evaporation assembly, and a condensation assembly is arranged above the end cover assembly; the evaporation assembly comprises a shell, and an evaporation cavity is formed in the shell; the stirring assembly comprises a rotating shaft, and a plurality of scraping plates are evenly arranged on the circumferential side face of the rotating shaft. The end cover assembly comprises a calabash shell, a matching cavity is formed in an inner cavity of the calabash shell, a heat flow cavity is formed in the inner wall of the calabash shell, a blocking plate is arranged in the heat flow cavity, and a plurality of conduction holes are evenly formed in the blocking plate. The separation device for plant extraction is high in plant separation efficiency, good in plant separation effect, capable of meeting actual plant extraction requirements, easy to operate, safe, stable, high in regulation and control performance, good in adaptability and capable of effectively improving the plant distillation and extraction quality.

Description

Technical Field

[0001] The invention belongs to the technical field of plant extraction, and in particular is a separation device for plant extraction and a processing and purification process thereof. Background Art

[0002] Separation devices for plant extraction are specially used to extract and separate active ingredients from plant materials. These devices usually use a variety of technologies to improve extraction efficiency and purity. Among them, the most commonly used method is steam distillation, that is, water vapor is directly introduced into the plant material at high temperature, so that the aromatic components therein diffuse or dissolve into the water and are azeotropically distilled together with the water vapor. Subsequently, essential oils can be obtained through condensation and oil-water separation.

[0003] Chinese invention patent CN105126378B discloses an aromatic plant distillation and extraction tank, wherein the tank body is provided with three layers of a combined honeycomb steam hopper, a temperature slow release device and a primary condenser; the combined honeycomb steam hopper is composed of a 2-5-layer loading frame structure and is arranged at the lower part of the tank body, the temperature slow release device is composed of a top layer, a middle layer and a bottom layer to form a conical hollow cover and is installed at the upper part of the tank body, and the primary condenser is a hollow container composed of inner and outer side walls, a top cover and a bottom plate of the tank body; the plant distillation and extraction tank has low distillation efficiency and poor distillation effect.

[0004] Chinese invention patent CN115121001A discloses a plant essential oil distillation and extraction device, including a device body, the upper surface of the device body is connected to a sealing cover by bolts, the device body is connected to a collection tank by the sealing cover, and the collection tank is used to collect plant essential oils, and a placement frame is provided inside the device body, and plants are placed in the placement frame for distillation and extraction; the plant distillation and extraction device is difficult to operate and has low operating safety.

[0005] When the plant materials and water are actually distilled, the steam flows upward and will be partially adsorbed on the inner wall of the distillation tank to form water droplets. If the water droplets cannot be scraped off in time and flow back into the distillation tank, it will not only accelerate the loss of plant materials and water inside the distillation tank, but the water droplets will also cool down the inner wall of the distillation tank, thereby reducing the upward discharge efficiency of the steam.

[0006] In the prior art, a scraper is often used to scrape off water drop impurities adsorbed on the inner wall of the distillation tank. However, the adsorption force of some water drop impurities is too strong to be effectively scraped off, and the water drop impurities are also adsorbed on the outer surface of the scraper, thereby reducing the normal scraping effect of the scraper.

[0007] At the same time, when the steam discharge efficiency inside the distillation tank changes, the steam discharge volume changes accordingly. If the evaporation efficiency of the plant material and water inside the distillation tank cannot be adjusted, it is easy to cause too much steam to be unable to be discharged, and ultimately cause steam reflux waste.

[0008] Moreover, when used for a long time, a large amount of plant raw material impurities or water droplet impurities are easily attached to the inner wall of the distillation tank. If they are not thoroughly and effectively scraped and cleaned, it will not only reduce the evaporation effect of the plant raw materials and water, but also affect the subsequent distillation extraction. Summary of the invention

[0009] In view of the above problems, the present invention provides a separation device for plant extraction and a processing and purification process thereof.

[0010] To achieve the above object, the present invention provides the following technical solution: a separation device for plant extraction, comprising an evaporation component, a stirring component is provided inside the evaporation component, an end cover component is provided above the evaporation component, and a condensation component is provided above the end cover component; The evaporation assembly comprises a shell, and an evaporation chamber is arranged inside the shell; The stirring assembly comprises a rotating shaft, and a plurality of scrapers are evenly arranged on the circumferential side of the rotating shaft; The end cover assembly comprises a gourd shell, the inner cavity of the gourd shell is provided with a matching cavity, the inner wall of the gourd shell is provided with a heat flow cavity, the interior of the heat flow cavity is provided with a blocking plate, the interior of the blocking plate is evenly provided with a plurality of conduction holes, the inner wall of the matching cavity is evenly provided with a plurality of connecting holes, the interior of the connecting hole is sealingly and slidably connected with a follower rod, one side of the connecting hole is provided with an end groove, the interior of the end groove is sealingly and slidably connected with a moving plate, and the side wall of the moving plate is fixedly connected with the side wall of the follower rod; The condensation component comprises a vertical pipe, and the top of the vertical pipe is connected with a condensation pipe.

[0011] The scraper in the separation device for plant extraction rotates continuously and scrapes and cleans the inner walls of the evaporation chamber and the matching chamber. At the same time, when the water droplets adsorbed on the inner wall of the matching chamber increase and the temperature decreases, the volume of the heat-expanded gas inside the end groove increases and drives the moving plate to move closer to the rotating shaft. The moving plate drives the follower rod to move closer to the rotating shaft, and the blockage area of ​​the conduction hole by the follower rod is reduced, and the upward flow of the heat medium increases. At the same time, the follower rod drives the elastic protective film to undergo elastic deformation, and the extrusion and scraping force of the scraper and the elastic protective film increases. At the same time, the slide plate drives the connecting rod to move along the side groove, and the overlapping area of ​​the stirring hole and the docking hole is reduced, further reducing the stirring efficiency of the stirring blade and the connecting rod on the plant material and water inside the evaporation chamber. After the scraper is separated from the elastic protective film, self-vibration cleaning occurs.

[0012] Preferably, a top groove is provided on the inner wall of the shell, a heating tube is spirally connected to the inside of the top groove, heat medium flows inside the heating tube, a drain pipe is provided at the bottom of the shell, a solenoid valve is provided inside the drain pipe, and the top of the drain pipe passes through the shell and is connected to the inner bottom of the evaporation chamber.

[0013] Preferably, a mounting ring is provided below the outer surface of the shell, a support platform is provided below the mounting ring, the mounting ring and the support platform are clamped and fixed to each other, a plurality of legs are evenly provided at the bottom of the support platform, and a limiting ring is provided above the outer surface of the shell.

[0014] Preferably, the side walls of the scraper match the inner walls of the evaporation chamber and the matching chamber, the outer surface of the rotating shaft is rotatably connected to the axis of the shell through a sealed bearing, a drive motor is provided at the bottom axis of the shell, and the bottom of the rotating shaft passes through the shell and is fixedly connected to the top output end of the drive motor.

[0015] Preferably, a plurality of stirring blades are evenly arranged on the outer surface of the rotating shaft, a side groove is opened at the other end of the stirring blade, a return spring is provided on the inner wall of the side groove, a connecting rod is provided on the other end of the return spring, the other end of the connecting rod is fixedly connected to the side wall of the scraper, the outer surface of the connecting rod is sealingly and slidingly connected to the inner wall of the side groove, a plurality of stirring holes are evenly arranged inside the stirring blade, a plurality of docking holes are evenly arranged inside the connecting rod, and the stirring holes correspond to the docking holes.

[0016] Preferably, the bottom of the gourd shell and the top of the shell are in squeeze contact with each other, and the inner bottom of the matching chamber and the inner top of the evaporation chamber are sealed and connected to each other, and a plurality of torsion spring seats are evenly arranged at the bottom of the gourd shell and located on the outside of the shell, and the bottom of the torsion spring seat is rotatably connected with a clamping jaw, and the other end of the clamping jaw is clamped with the outer surface of the limiting ring.

[0017] Preferably, a feed pipe is provided on one side of the top of the gourd shell, and the bottom of the feed pipe is connected with the interior of the matching cavity. A first thermometer is provided on the other side of the top of the gourd shell, and the bottom detection end of the first thermometer passes through the gourd shell and is located inside the matching cavity. The inner bottom of the heat flow cavity is evenly connected with a plurality of transfer holes, and the other end of the transfer hole passes through the gourd shell and the shell and is connected with the inner top of the top groove. A heat outlet pipe is provided on the top of the gourd shell, and the bottom of the heat outlet pipe is connected with the inner top of the heat flow cavity.

[0018] Preferably, the end of the connecting hole is connected to the end of the conducting hole, and the outer surface of the follower rod is sealingly and slidably connected to the inner wall of the conducting hole, a heat exchange plate is provided at one end of the end groove close to the rotating shaft, the end of the heat exchange plate matches the inner wall of the matching cavity, a thermal expansion gas is provided between the heat exchange plate and the movable plate, a connecting spring is provided on the inner wall of the end groove, the other end of the connecting spring is fixedly connected to the side wall of the movable plate, a plurality of elastic protective films are evenly provided on the inner wall of the matching cavity, and the inner walls of the elastic protective films match the end of the follower rod.

[0019] Preferably, the bottom of the vertical tube is connected with the inner top of the matching cavity, a second thermometer is provided on one side of the condenser, the detection end of the second thermometer passes through the condenser and is located in the inner cavity of the condenser, the bottom of the condenser is connected with a drainage tube, the other end of the drainage tube is connected with a storage tank, the bottom of the storage tank is connected with a drip tube, a flow valve is provided inside the drip tube, a collecting bucket is provided below the drip tube, and a plurality of round legs are evenly provided on the bottom of the collecting bucket.

[0020] The processing and purification process of the separation device for plant extraction as described above comprises the following steps: S1. Add the required plant material and water into the evaporation chamber and heat and distill. The steam in the evaporation chamber reaches the end of the matching chamber upward. The rotation of the rotating shaft drives the scraper to rotate and scrape off the water droplets attached to the inner wall of the evaporation chamber and the matching chamber; S2. When the number of water droplets adsorbed on the outer surface of the elastic protective film increases, the temperature of the matching cavity at the corresponding position decreases, the volume of the thermally expanded gas inside the end slot decreases, the connecting spring drives the moving plate to move closer to the end of the rotating shaft, and the moving plate drives the follower rod to move closer to the end of the rotating shaft, the blockage area of ​​the conduction hole by the follower rod decreases, and the heat medium flowing inside the conduction hole increases; S3, when the follower rod moves toward the rotating shaft end, it simultaneously drives the elastic protective film to undergo elastic deformation, the scraper is squeezed with the elastic protective film and moves toward the rotating shaft end, the scraper drives the connecting rod to squeeze the reset spring along the side groove, and the overlapping area of ​​the stirring hole and the docking hole is reduced; S4. When the scraper is separated from the elastic protective film and elastically squeezed into contact with the next elastic protective film, elastic vibration occurs and self-vibration cleaning is achieved. The stirring range of the stirring blade and the connecting rod is increased, the overlapping area of ​​the stirring hole and the docking hole is increased, and the amount of plant material and water flowing is increased.

[0021] Compared with the prior art, the present invention has the following beneficial effects: 1. The present application sets an evaporation component, an agitation component, an end cover component and a condensation component and other components to cooperate with each other. The separation device for plant extraction has high plant separation efficiency and good plant separation effect, meets the actual plant extraction needs, is simple to operate, safe and stable, and has strong controllability and good adaptability, and can effectively improve the quality of plant distillation extraction.

[0022] 2. In the present application, by arranging the cooperation between components such as a scraper and an elastic protective film, the separation device for plant extraction uses the scraper to scrape and clean the inside of the evaporation chamber and the matching chamber, thereby avoiding the adsorption of some impurities and affecting the extraction quality.

[0023] 3. The present application sets the coordination of the conduction hole and the follower rod and other components. When the distillation temperature of the plant material and water inside the matching chamber decreases, the size of the conduction hole opening is adjusted accordingly, thereby improving the heat conversion efficiency of the heat medium to the inside of the matching chamber and ensuring efficient and stable flow of steam inside the matching chamber.

[0024] 4. In the present application, by arranging the mutual cooperation of components such as stirring blades and connecting rods, the separation device for plant extraction can not only realize the vibration self-cleaning of the scraper as the scraper continues to move, but also can adjust the stirring and turbulent effect of the stirring blades and the connecting rods on the plant raw materials and water inside the evaporation chamber, thereby ensuring continuous and stable mixed distillation of the plant raw materials and water. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure from another viewing angle of the present invention; Figure 3 It is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 4 for Figure 3 The enlarged schematic diagram at A in the middle; Figure 5 for Figure 3 The enlarged schematic diagram of point B in the middle; Figure 6 for Figure 3 The enlarged schematic diagram at C in the middle; Figure 7 It is a schematic diagram of the internal three-dimensional structure of the present invention as viewed from above; Figure 8 for Figure 7 The enlarged schematic diagram at D in the middle; Fig. 9 It is a schematic diagram of the explosion three-dimensional structure of the present invention; Fig.10 It is a schematic diagram of a partially exploded three-dimensional structure of the stirring assembly of the present invention; Fig.11 It is a schematic diagram of a partially exploded three-dimensional structure of the end cover assembly of the present invention.

[0026] In the figure: 1. Evaporation assembly; 101. Shell; 102. Evaporation chamber; 103. Heating tube; 104. Top groove; 105. Drain pipe; 106. Solenoid valve; 107. Support platform; 108. Leg; 109. Mounting ring; 110. Limiting ring; 2. Stirring assembly; 201. Rotating shaft; 202. Driving motor; 203. Stirring blade; 204. Stirring hole; 205. Side groove; 206. Reset spring; 207. Connecting rod; 208. Docking hole; 209. Scraper; 3. End cover assembly; 301. Gourd shell; 302. Feed pipe; 303. First temperature gauge; 304, torsion spring seat; 305, clamping claw; 306, heat flow chamber; 307, transfer hole; 308, blocking plate; 309, conduction hole; 310, connecting hole; 311, end groove; 312, heat exchange plate; 313, moving plate; 314, connecting spring; 315, follower rod; 316, elastic protective film; 317, heat outlet pipe; 318, matching chamber; 4, condensation assembly; 401, vertical pipe; 402, condensation pipe; 403, drainage pipe; 404, storage tank; 405, dripping pipe; 406, collecting bucket; 407, round leg; 408, second thermometer; 409, flow valve. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1 like Figure 1-11 As shown, a separation device for plant extraction includes an evaporation component 1, wherein the plant material and water are distilled at high temperature inside the evaporation component 1, a stirring component 2 is provided inside the evaporation component 1, the stirring component 2 works continuously and stirs the plant material and water inside the evaporation component 1, an end cover component 3 is provided above the evaporation component 1, the end cover component 3 is configured in a gourd shape, and the steam recovery effect is effectively improved, and a condensation component 4 is provided above the end cover component 3, the condensation component 4 works continuously and realizes subsequent condensation to obtain the desired product.

[0029] The evaporation component 1 includes a shell 101, an evaporation chamber 102 is arranged inside the shell 101, and a subsequent distillation process is carried out inside the evaporation chamber 102. A top groove 104 is opened on the inner wall of the shell 101, and a heating tube 103 is spirally connected inside the top groove 104. Heat medium flows inside the heating tube 103, and the heat medium inside the heating tube 103 heats the plant material and water inside the evaporation chamber 102, thereby realizing the distillation process. A drain pipe 105 is arranged at the bottom of the shell 101, and a solenoid valve 106 is arranged inside the drain pipe 105. The top of the drain pipe 105 passes through the shell 101 and is connected to the inner bottom of the evaporation chamber 102. When the distillation is completed, the solenoid valve 106 is opened, and the impurities inside the evaporation chamber 102 are evenly discharged along the drain pipe 105.

[0030] A mounting ring 109 is provided below the outer surface of the shell 101, and a support platform 107 is provided below the mounting ring 109. The mounting ring 109 and the support platform 107 are clamped and fixed to each other. This arrangement further improves the installation stability of the shell 101. A plurality of legs 108 are evenly provided at the bottom of the support platform 107, and a buffer pad is provided at the bottom of the legs 108. The plurality of legs 108 improve the stability of the support platform 107. A limiting ring 110 is provided above the outer surface of the shell 101. The setting of the limiting ring 110 ensures the installation tightness of the shell 101 and the end cover assembly 3.

[0031] The stirring assembly 2 includes a rotating shaft 201, which rotates inside the evaporation chamber 102 and realizes a stirring process. A plurality of scrapers 209 are evenly arranged on the side surface of the rotating shaft 201. The scrapers 209 match the inner walls of the evaporation chamber 102 and the matching chamber 318. The scrapers 209 rotate synchronously with the rotation of the rotating shaft 201, thereby further improving the scraping and cleaning effect of impurities adsorbed on the inner wall of the evaporation chamber 102.

[0032] The outer surface of the rotating shaft 201 is rotatably connected to the axis of the shell 101 through a sealed bearing. A driving motor 202 is provided at the bottom axis of the shell 101. The bottom of the rotating shaft 201 passes through the shell 101 and is fixedly connected to the top output end of the driving motor 202. The driving motor 202 is started and drives the rotating shaft 201 to rotate. The rotation of the rotating shaft 201 drives multiple scrapers 209 on the surrounding side to rotate. The scrapers 209 scrape and clean the inner walls of the evaporation chamber 102 and the matching chamber 318.

[0033] The outer surface of the rotating shaft 201 is evenly provided with a plurality of stirring blades 203. When the rotating shaft 201 rotates, the plurality of stirring blades 203 are synchronously driven to rotate. A side groove 205 is provided at the other end of the stirring blade 203. A return spring 206 is provided on the inner wall of the side groove 205. A connecting rod 207 is provided at the other end of the return spring 206. The outer surface of the connecting rod 207 is sealingly and slidably connected with the inner wall of the side groove 205. The setting of the return spring 206 further improves the elastic return performance of the connecting rod 207. At the same time, when the stirring blade 203 rotates, the connecting rod 207 is driven to rotate. The other end of the connecting rod 207 is fixedly connected to the side wall of the scraper 209. The scraper 209 is driven to rotate, a plurality of stirring holes 204 are evenly arranged inside the stirring blade 203, a plurality of docking holes 208 are evenly arranged inside the connecting rod 207, the stirring holes 204 are opposite to the docking holes 208, when the connecting rod 207 moves along the side groove 205 toward the rotating shaft 201, the overlapping area of ​​the stirring holes 204 and the docking holes 208 is reduced, and when the stirring blade 203 drives the connecting rod 207 to rotate, the plant material and water passing through the stirring holes 204 and the docking holes 208 are correspondingly reduced, thereby avoiding excessive plant material and water evaporating to form steam and causing blockage upward to affect the normal discharge efficiency, and ultimately causing waste of steam recovery.

[0034] The end cover assembly 3 includes a gourd shell 301, which is in the shape of a gourd. With the help of multiple curved structures of the gourd shell 301 itself, the adsorption and blocking of impurities in the steam are further improved to ensure the purity of the steam discharged upward. The inner cavity of the gourd shell 301 is provided with a matching cavity 318, and the matching cavity 318 is also in the shape of a gourd. Therefore, water droplets adsorbed on the inner wall of the matching cavity 318 will continue to flow under their own weight and reach the outer surface of the elastic protective membrane 316. The bottom of the gourd shell 301 and the top of the shell 101 are squeezed and contacted with each other, and the inner bottom of the matching cavity 318 and the inner top of the evaporation cavity 102 are sealed and connected with each other. Therefore, the steam formed after the plant material and water in the evaporation cavity 102 evaporate upward into the matching cavity 318 for subsequent circulation.

[0035] A plurality of torsion spring seats 304 are evenly arranged at the bottom of the gourd shell 301 and located on the outside of the shell 101. The bottom of the torsion spring seat 304 is rotatably connected with a clamp 305. The other end of the clamp 305 is clamped with the outer surface of the limiting ring 110. When the gourd shell 301 needs to be installed and fixed, it is only necessary to place the gourd shell 301 on the top of the shell 101, and at the same time rotate the plurality of clamps 305 to make them clamped and fixed with the limiting ring 110, thereby improving the sealing of the evaporation chamber 102 and the matching chamber 318, as well as the positioning accuracy of the shell 101 and the gourd shell 301.

[0036] A feed pipe 302 is provided on one side of the top of the gourd shell 301, and the bottom of the feed pipe 302 is connected to the interior of the matching chamber 318. The required plant materials and water are poured into the evaporation chamber 102 along the feed pipe 302. A first thermometer 303 is provided on the other side of the top of the gourd shell 301. The bottom detection end of the first thermometer 303 passes through the gourd shell 301 and is located inside the matching chamber 318. The first thermometer 303 is used to detect the temperature values ​​inside the evaporation chamber 102 and the matching chamber 318.

[0037] The inner wall of the gourd shell 301 is provided with a heat flow cavity 306, and the inner bottom of the heat flow cavity 306 is evenly connected with a plurality of transfer holes 307, and the other end of the transfer hole 307 passes through the gourd shell 301 and the shell 101 and is connected with the inner top of the top groove 104, so that the heat medium discharged from the heating pipe 103 continues to flow along the top groove 104 and the transfer hole 307 into the heat flow cavity 306, thereby improving the upward fluidity of the steam and the constancy of its own temperature. The interior of the heat flow cavity 306 is provided with a baffle plate 308, and the interior of the baffle plate 308 is evenly provided with a plurality of conduction holes 309, and the baffle plate 308 The heat medium inside the heat flow cavity 306 is blocked and discharged along the multiple conduction holes 309, so as to adjust the temperature values ​​at different positions inside the matching cavity 318 accordingly, further improving the flow discharge effect of steam and the scraping effect of water drop impurities adsorbed on the inner wall of the matching cavity 318. A heat outlet pipe 317 is provided on the top of the gourd shell 301, and the bottom of the heat outlet pipe 317 is connected to the inner top of the heat flow cavity 306. The heat medium inside the heat flow cavity 306 is finally discharged and recovered along the heat outlet pipe 317 at the top, so as to realize the flow of the heat medium and the heat exchange effect on the evaporation cavity 102 and the inside of the matching cavity 318.

[0038] The inner wall of the matching cavity 318 is evenly provided with a plurality of connecting holes 310, the ends of the connecting holes 310 are connected to the ends of the conducting holes 309, the interior of the connecting holes 310 is sealed and slidably connected with a follower rod 315, the outer surface of the follower rod 315 is sealed and slidably connected to the inner wall of the conducting hole 309, and the follower rod 315 can move inside the connecting holes 310 and the conducting holes 309, thereby realizing the adjustment of the blockage area of ​​the conducting holes 309, and correspondingly adjusting the flow rate of the heat flow cavity 306 at this position and the heat exchange temperature inside the matching cavity 318.

[0039] An end groove 311 is provided on one side of the connecting hole 310, and a movable plate 313 is sealed and slidably connected inside the end groove 311. The side wall of the movable plate 313 is fixedly connected to the side wall of the follower rod 315. When the movable plate 313 moves, the follower rod 315 is synchronously driven to move. A heat exchange plate 312 is provided at one end of the end groove 311 close to the rotating shaft 201, and the end of the heat exchange plate 312 matches the inner wall of the matching cavity 318. The setting of the heat exchange plate 312 not only seals the end of the end groove 311, but also improves the heat exchange accuracy between the end groove 311 and the matching cavity 318, and further ensures the detection accuracy and detection efficiency of the thermal expansion gas inside the end groove 311 to the corresponding position of the matching cavity 318. A thermal expansion gas is provided between the heat exchange plate 312 and the movable plate 313, and the thermal expansion gas has the principle of thermal expansion and contraction. A connecting spring is provided on the inner wall of the end groove 311 314, the other end of the connecting spring 314 is fixedly connected to the side wall of the movable plate 313, the setting of the connecting spring 314 further improves the elastic reset performance of the movable plate 313, the inner wall of the matching cavity 318 is evenly provided with a plurality of elastic protective films 316, the plurality of elastic protective films 316 are arranged at the head and tail of the matching cavity 318, and the ends of the elastic protective films 316 are fixedly connected to the inner wall of the matching cavity 318, the inner walls of the elastic protective films 316 are matched with the ends of the follower rods 315, and the plurality of follower rods 315 are located at one end of the inner wall of the elastic protective films 316, the elastic protective films 316 will undergo elastic deformation synchronously with the movement of the follower rods 315, and then adjust the moving position of the scraper 209, realize the vibration cleaning of the scraper 209 itself, and avoid the outer surface of the scraper 209 from absorbing too much steam impurities and reducing the subsequent distillation and condensation effects.

[0040] The condensation assembly 4 includes a vertical pipe 401, the bottom of which is connected to the inner top of the matching chamber 318, the steam in the matching chamber 318 enters the vertical pipe 401 upward, the top of the vertical pipe 401 is connected to the condensation pipe 402, and the steam continues to enter the condensation pipe 402 along the vertical pipe 401 for condensation, a second thermometer 408 is provided on one side of the condensation pipe 402, the detection end of the second thermometer 408 passes through the condensation pipe 402 and is located in the inner cavity of the condensation pipe 402, the second thermometer 408 is used to detect the temperature value inside the condensation pipe 402, the bottom of the condensation pipe 402 is connected to the drainage pipe 403, the other end of the drainage pipe 403 is connected to the A storage tank 404 is provided, and the condensed product is stored inside the storage tank 404 along the drainage pipe 403. The bottom of the storage tank 404 is connected to a dripping pipe 405, and a flow valve 409 is provided inside the dripping pipe 405. The flow valve 409 adjusts the dripping rate of the dripping pipe 405 accordingly. A collecting bucket 406 is provided below the dripping pipe 405. The product inside the storage tank 404 enters the collecting bucket 406 along the dripping pipe 405 for recycling. A plurality of round legs 407 are evenly provided at the bottom of the collecting bucket 406, and a buffer pad is provided at the bottom of the round legs 407. The provision of the round legs 407 improves the support of the collecting bucket 406.

[0041] When the plant material and water are actually distilled, the steam flows upward and is partially adsorbed on the inner wall of the matching chamber 318 to form water droplets. If the water droplets cannot be scraped off in time and flow back to the inside of the evaporation chamber 102, it will not only accelerate the loss of plant material and water in the evaporation chamber 102, but the water droplets will also cool down the inner wall of the matching chamber 318, thereby reducing the upward discharge efficiency of the steam. When the scraper 209 is used to scrape off the water drop impurities adsorbed on the inner walls of the evaporation chamber 102 and the matching chamber 318, the adsorption force of some water drop impurities is too large to be effectively scraped off, and the water drop impurities will also be adsorbed on the outer surface of the scraper 209, causing the steam to be discharged upward. This will reduce the normal scraping effect of the scraper 209; at the same time, when the steam discharge efficiency in the matching chamber 318 changes, the steam discharge amount in the matching chamber 318 changes accordingly, and if the evaporation efficiency of the plant material and water in the evaporation chamber 102 cannot be adjusted, excessive steam will not be discharged, and ultimately cause steam reflux waste; when used for a long time, a large amount of plant material impurities or water droplet impurities are easily attached to the inner walls of the evaporation chamber 102 and the matching chamber 318. If they cannot be thoroughly and effectively scraped and cleaned, it will not only reduce the evaporation effect of the plant material and water, but also affect the subsequent distillation and extraction.

[0042] In order to solve the above problems, when the separation device for plant extraction is actually used, the plant raw material and water are first sent to the inside of the matching chamber 318 along the feed pipe 302, and continue to move downward along the matching chamber 318 into the evaporation chamber 102 to wait for subsequent evaporation and condensation. After the feeding is completed, the feed pipe 302 is blocked, and the heat medium enters the heating tube 103. The heating tube 103 exchanges heat with the plant raw material and water in the evaporation chamber 102 and further increases the temperature inside the evaporation chamber 102. The temperature value detected by the first thermometer 303 reaches the preset value, and the heat medium in the heating tube 103 moves upward along the transfer hole 307 into the hot flow chamber 306, thereby improving the heat exchange efficiency of the hot flow chamber 306 to the matching chamber 318. The heat medium in the hot flow chamber 306 continues to move upward and along the multiple conduction holes 309, and is finally discharged along the heat outlet pipe 317 to complete the cycle.

[0043] At the same time, the driving motor 202 starts and drives the rotating shaft 201 to rotate, the rotating shaft 201 drives the multiple stirring blades 203 to rotate, and the stirring blades 203 drive the connecting rod 207 to rotate. At the same time, since the stirring hole 204 and the docking hole 208 partially overlap, the plant material and water inside the evaporation chamber 102 flow along the overlapping position, further improving the stirring and mixing effect, and cooperating with the stirring blades 203 and the connecting rod 207 to stir and mix the plant material and water inside the evaporation chamber 102, improve the stirring and mixing quality, and the connecting rod 207 drives the scraper 209 at the other end to rotate, and the scraper 209 scrapes and cleans the plant material and water droplets adsorbed on the inner wall of the evaporation chamber 102 and the matching chamber 318.

[0044] The plant material and water inside the evaporation chamber 102 are continuously evaporated to form steam under the combined action of the heat medium heating inside the heating tube 103 and the stirring of the stirring blades 203 and the connecting rod 207. The steam continues to move upward to the inside of the matching chamber 318. The temperature inside the matching chamber 318 increases. With the help of the heat expansion gas inside the end groove 311, it expands and drives the moving plate 313 to squeeze the connecting spring 314 and move away from the rotating shaft 201. The moving plate 313 simultaneously drives the follower rod 315 to move. The outer surface of the follower rod 315 partially blocks the conduction hole 309. The heat medium inside the heat flow chamber 306 flows upward through the conduction hole 309 at a stable rate. At the same time, the follower rod 315 drives the elastic protective film 316 at the end to move and break away from the blockage of the rotating shaft 201, and the matching chamber 318 is in a fully open state.

[0045] At this time, the gourd-shaped structure of the gourd shell 301 itself partially blocks the steam, and part of the steam is adsorbed on the inner wall of the matching chamber 318 to form water droplets. At the same time, the stirring blade 203 drives the scraper 209 to rotate continuously through the connecting rod 207 and scrapes and cleans the inner walls of the evaporation chamber 102 and the matching chamber 318, thereby avoiding the adsorption of water droplets on the inner wall of the matching chamber 318 and reducing the thoroughness of the distillation. The other part of the steam continues to move upward along the vertical pipe 401 into the condenser 402 for condensation. The second thermometer 408 detects the condensation temperature inside the condenser 402. After condensation, the desired product is formed and enters the storage tank 404 along the drainage pipe 403. The flow valve 409 is opened, and the product inside the storage tank 404 is continuously discharged along the drip pipe 405 to the collection bucket 406 for recycling, thereby completing the distillation and purification process.

[0046] However, when the amount of water droplets adsorbed on the inner wall of the matching cavity 318 increases and continuously slides downward to the outer wall end of the elastic protective film 316, the water droplets cannot be scraped off by the rotation of the scraper 209 alone. Therefore, when the water droplets are adsorbed on the end of the matching cavity 318 for a long time, the temperature at this position will decrease, and ultimately reduce the subsequent steam discharge upward condensation effect. At this time, the volume of the thermally expanded gas inside the end groove 311 at the corresponding position is reduced under the cooling effect of the water droplets, and the thrust exerted by the thermally expanded gas on the moving plate 313 is reduced. The movable plate 313 is driven to move toward the end of the rotating shaft 201, and the movable plate 313 simultaneously drives the follower rod 315 to move toward the end of the rotating shaft 201, so that the blockage area of ​​the conduction hole 309 by the follower rod 315 is reduced, and the upward flow of the heat medium in the heat flow cavity 306 along the conduction hole 309 is increased, thereby increasing the heating efficiency of the heat medium at this position of the inner wall of the matching cavity 318, ensuring that the water droplets adsorbed on the inner wall of the matching cavity 318 continue to evaporate and be discharged under the heat exchange effect of the increased temperature of the heat medium, thereby improving the evaporation and cleaning effect of the water droplets.

[0047] At the same time, when the follower rod 315 moves toward the end close to the rotating shaft 201, the end of the follower rod 315 simultaneously applies a thrust to the inner wall of the elastic protective film 316 and undergoes elastic deformation toward the end close to the rotating shaft 201. When the scraper 209 continues to rotate, the extrusion and scraping force applied to the elastic protective film 316 increases, thereby further improving the scraping and cleaning effect of the water droplets adsorbed on the outer surface of the elastic protective film 316, avoiding the accumulation of more water droplets on the outer surface of the elastic protective film 316 and directly affecting the scraping and cleaning effect.

[0048] Since the follower rod 315 drives the elastic protective film 316 to elastically deform toward the end of the rotating shaft 201, the blocking area of ​​the elastic protective film 316 on the matching cavity 318 at this position increases, and the upward flow of steam at this position decreases. When the scraper 209 rotates and scrapes in contact with the elastic protective film 316, it moves toward the end of the rotating shaft 201. The scraper 209 synchronously drives the connecting rod 207 to squeeze the reset spring 206 along the side groove 205 and move toward the end of the rotating shaft 201. The connecting rod 207 and the stirring blade 203 The stirring range of the plant material and water inside the evaporation chamber 102 is reduced, and at the same time, the overlapping area of ​​the stirring hole 204 and the docking hole 208 is reduced, and the amount of plant material and water passing through the overlapping part of the stirring hole 204 and the docking hole 208 is reduced, thereby reducing the stirring effect of the stirring blade 203 and the connecting rod 207 on the plant material and water inside the evaporation chamber 102, avoiding excessive plant material and water from distilling to form steam and then adhering to the outer surface of the elastic protective film 316, further improving the adaptability to the stirring and distillation of plant material and water.

[0049] When the scraper 209 rotates continuously and reaches the end of the follower rod 315 and separates from the outer wall of the elastic protective film 316, the scraper 209 moves away from the end of the rotating shaft 201 under the elastic force exerted by the return spring 206 on the connecting rod 207, and the scraper 209 and the next elastic protective film 316 squeeze and collide with each other. At this time, since the adjacent follower rods 315 drive the elastic protective film 316 to undergo different elastic deformations, the scraper 209 moves in the opposite direction in the matching cavity 318 and undergoes elastic collision vibration with the inner wall of the matching cavity 318. With the help of this vibration, not only can the water droplets adsorbed on the outer surface of the elastic protective film 316 and the evaporation chamber 102 and the inner wall of the matching cavity 318 be elastically vibrated and separated, but also a reverse elastic vibration force can be applied to the scraper 209, so that the water droplets attached to the outer surface of the scraper 209 are vibrated and cleaned, ensuring that the water droplets flow back downward to the inside of the evaporation chamber 102 for subsequent distillation, thereby improving the elastic vibration cleaning effect, and achieving higher recovery efficiency and better cleaning effect.

[0050] At the same time, when the scraper 209 moves, it synchronously drives the connecting rod 207 to move horizontally inside the side groove 205, and synchronously drives the change of the overlapping area of ​​the stirring hole 204 and the docking hole 208. Then, the stirring effect of the stirring blade 203 and the connecting rod 207 on the plant material and water inside the evaporation chamber 102 changes synchronously, and the plant material and water generate pulse flow inside the stirring hole 204 and the docking hole 208, thereby further improving the mixing flow effect of the plant material and water inside the evaporation chamber 102, ensuring the thoroughness of mixing and pulse variability.

[0051] Similarly, after the water droplets on the elastic protective film 316 are scraped off and cleaned, the temperature value at the corresponding position of the matching cavity 318 continues to increase to the initial value. At this time, the volume of the thermally expanded gas inside the end groove 311 increases and drives the moving plate 313 to squeeze the connecting spring 314 and move it to the initial value. The moving plate 313 drives the follower rod 315 to move to the initial value away from the rotating shaft 201 end. The elastic protective film 316 matches the inner wall of the matching cavity 318. At the same time, the blocking area of ​​the conduction hole 309 by the follower rod 315 is restored to the initial value. The flow rate of the heat medium inside the hot flow cavity 306 upward along the conduction hole 309 is restored to the initial value. The heat medium restores the steam heating temperature inside the matching cavity 318 to the initial value. The scraper 209 drives the connecting rod 207 to move to the initial value inside the side groove 205, and all components resume normal operation.

[0052] After the distillation of the plant material and water in the evaporation chamber 102 is completed, the solenoid valve 106 is opened, and the temperature inside the heating tube 103 is further increased. At this time, the volume of the hot expanded gas in the end groove 311 reaches the maximum and drives the movable plate 313 to squeeze the connecting spring 314 and move to the maximum value away from the rotating shaft 201 end. The movable plate 313 simultaneously drives the follower rod 315 to move to the maximum value away from the rotating shaft 201 end. The scraper 209 fits the inner wall of the evaporation chamber 102 and the matching chamber 318. The rotation of the rotating shaft 201 drives the stirring blade 203 to rotate. The stirring blade 203 drives the scraper 209 to rotate through the connecting rod 207 inside the side groove 205. The scraper 209 thoroughly and effectively scrapes and cleans the inner wall of the evaporation chamber 102 and the matching chamber 318, and the plant material and water in the evaporation chamber 102 are discharged along the exhaust pipe 105, thereby completing the distillation process.

[0053] After that, heat medium is no longer introduced into the heating tube 103, and the volume of the thermally expanded gas in the end groove 311 is reduced to a minimum value. Under the elastic force of the connecting spring 314, the movable plate 313 is driven to move to a maximum value close to the end of the rotating shaft 201, and the movable plate 313 drives the follower rod 315 to move to a maximum value close to the end of the rotating shaft 201, and the follower rod 315 simultaneously drives the multiple elastic protective films 316 to move to a maximum value. Then, the multiple elastic protective films 316 squeeze the scraper 209 and fit together with the outer surface of the rotating shaft 201, and the matching cavity 318 is closed and blocked at this position, thereby preventing external impurities from entering the evaporation chamber 102 and causing pollution to the subsequent distillation process.

[0054] The separation device for plant extraction has high plant separation efficiency and good plant separation effect, meets the actual plant extraction needs, is simple to operate, safe and stable, and has strong controllability and good adaptability, and can effectively improve the quality of plant distillation extraction; and can also use the scraper 209 to scrape and clean the inside of the evaporation chamber 102 and the matching chamber 318 to avoid the adsorption of some impurities and affect the extraction quality; at the same time, when the distillation temperature of the plant raw material and water in the matching chamber 318 decreases, the opening size of the conduction hole 309 is adjusted accordingly, thereby improving the heat conversion efficiency of the heat medium to the inside of the matching chamber 318, and ensuring the efficient and stable flow of steam in the matching chamber 318; and with the continuous movement of the scraper 209, not only the vibration self-cleaning of the scraper 209 is achieved, but also the stirring and torrent effect of the stirring blade 203 and the connecting rod 207 on the plant raw material and water in the evaporation chamber 102 can be adjusted, thereby ensuring the continuous and stable mixed distillation of the plant raw material and water.

[0055] Example 2 The processing and purification process of the separation device for plant extraction as described above comprises the following steps: S1. Add the required plant materials and water into the evaporation chamber 102 and heat and distill. The steam in the evaporation chamber 102 reaches the end of the matching chamber 318 upward. The rotation of the rotating shaft 201 drives the scraper 209 to rotate and scrape off the water droplets attached to the inner walls of the evaporation chamber 102 and the matching chamber 318.

[0056] S2. When the number of water droplets adsorbed on the outer surface of the elastic protective film 316 increases, the temperature of the matching cavity 318 at the corresponding position decreases, the volume of the thermally expanded gas inside the end groove 311 decreases, the connecting spring 314 drives the movable plate 313 to move closer to the end of the rotating shaft 201, and the movable plate 313 drives the follower rod 315 to move closer to the end of the rotating shaft 201. The blockage area of ​​the conduction hole 309 by the follower rod 315 decreases, and the heat medium flowing inside the conduction hole 309 increases.

[0057] S3, when the follower rod 315 moves toward the end of the rotating shaft 201, it simultaneously drives the elastic protective film 316 to undergo elastic deformation, the scraper 209 is squeezed with the elastic protective film 316 and moves toward the end of the rotating shaft 201, the scraper 209 drives the connecting rod 207 to squeeze the reset spring 206 along the side groove 205, and the overlapping area of ​​the stirring hole 204 and the docking hole 208 is reduced.

[0058] S4, when the scraper 209 separates from the elastic protective film 316 and elastically squeezes into contact with the next elastic protective film 316, elastic vibration occurs and self-vibration cleaning is achieved, the stirring range of the stirring blade 203 and the connecting rod 207 is increased, the overlapping area of ​​the stirring hole 204 and the docking hole 208 is increased, and the amount of plant material and water flowing through is increased.

[0059] By further limiting the purification process, the purification quality can be improved and the purification efficiency can be guaranteed.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A separation device for plant extraction, comprising an evaporation component (1), characterized in that: A stirring assembly (2) is provided inside the evaporation assembly (1), an end cover assembly (3) is provided above the evaporation assembly (1), and a condensation assembly (4) is provided above the end cover assembly (3); The evaporation component (1) comprises a shell (101), and an evaporation chamber (102) is provided inside the shell (101); The stirring assembly (2) comprises a rotating shaft (201), and a plurality of scrapers (209) are evenly arranged on the side surface of the rotating shaft (201); The end cover assembly (3) comprises a gourd shell (301), the inner cavity of the gourd shell (301) is provided with a matching cavity (318), the inner wall of the gourd shell (301) is provided with a heat flow cavity (306), the interior of the heat flow cavity (306) is provided with a blocking plate (308), the interior of the blocking plate (308) is evenly provided with a plurality of conduction holes (309), the inner wall of the matching cavity (318) is evenly provided with a plurality of connecting holes (310), the interior of the connecting hole (310) is sealingly slidably connected to a follower rod (315), one side of the connecting hole (310) is provided with an end groove (311), the interior of the end groove (311) is sealingly slidably connected to a moving plate (313), and the side wall of the moving plate (313) is fixedly connected to the side wall of the follower rod (315); The condensation assembly (4) comprises a vertical pipe (401), and the top of the vertical pipe (401) is connected to a condensation pipe (402).

2. A separation device for plant extraction as claimed in claim 1, characterized in that: The inner wall of the shell (101) is provided with a top groove (104), the interior of the top groove (104) is spirally connected with a heating tube (103), a heat medium flows inside the heating tube (103), a waste pipe (105) is provided at the bottom of the shell (101), a solenoid valve (106) is provided inside the waste pipe (105), and the top of the waste pipe (105) passes through the shell (101) and is connected to the inner bottom of the evaporation chamber (102).

3. A separation device for plant extraction as claimed in claim 1, characterized in that: A mounting ring (109) is provided below the outer surface of the shell (101), a support platform (107) is provided below the mounting ring (109), the mounting ring (109) and the support platform (107) are mutually clamped and fixed, a plurality of legs (108) are evenly provided at the bottom of the support platform (107), and a limiting ring (110) is provided above the outer surface of the shell (101).

4. A separation device for plant extraction as claimed in claim 1, characterized in that: The side wall of the scraper (209) matches the inner wall of the evaporation chamber (102) and the matching chamber (318); the outer surface of the rotating shaft (201) is rotatably connected to the axis of the shell (101) via a sealed bearing; a driving motor (202) is provided at the bottom axis of the shell (101); the bottom of the rotating shaft (201) passes through the shell (101) and is fixedly connected to the top output end of the driving motor (202).

5. A separation device for plant extraction as claimed in claim 4, characterized in that: A plurality of stirring blades (203) are evenly arranged on the outer surface of the rotating shaft (201); a side groove (205) is formed at the other end of the stirring blade (203); a return spring (206) is formed on the inner wall of the side groove (205); a connecting rod (207) is formed on the other end of the return spring (206); the other end of the connecting rod (207) is fixedly connected to the side wall of the scraper (209); the outer surface of the connecting rod (207) is sealingly and slidably connected to the inner wall of the side groove (205); a plurality of stirring holes (204) are evenly arranged inside the stirring blade (203); a plurality of docking holes (208) are evenly arranged inside the connecting rod (207); the stirring holes (204) correspond to the docking holes (208).

6. A separation device for plant extraction as claimed in claim 3, characterized in that: The bottom of the gourd shell (301) and the top of the shell (101) are in mutual compression contact, and the inner bottom of the matching chamber (318) and the inner top of the evaporation chamber (102) are in sealed communication with each other. A plurality of torsion spring seats (304) are evenly arranged at the bottom of the gourd shell (301) and located outside the shell (101). The bottom of the torsion spring seat (304) is rotatably connected to a clamping claw (305), and the other end of the clamping claw (305) is mutually clamped with the outer surface of the limit ring (110).

7. A separation device for plant extraction as claimed in claim 2, characterized in that: A feed pipe (302) is provided on one side of the top of the gourd shell (301), and the bottom of the feed pipe (302) is connected to the inside of the matching cavity (318). A first temperature gauge (303) is provided on the other side of the top of the gourd shell (301), and the bottom detection end of the first temperature gauge (303) passes through the gourd shell (301) and is located inside the matching cavity (318). The inner bottom of the heat flow cavity (306) is evenly connected with a plurality of transfer holes (307), and the other end of the transfer hole (307) passes through the gourd shell (301) and the shell (101) and is connected to the inner top of the top groove (104). A heat outlet pipe (317) is provided on the top of the gourd shell (301), and the bottom of the heat outlet pipe (317) is connected to the inner top of the heat flow cavity (306).

8. A separation device for plant extraction as claimed in claim 5, characterized in that: The end of the connecting hole (310) is connected to the end of the conducting hole (309), and the outer surface of the follower rod (315) is sealingly and slidably connected to the inner wall of the conducting hole (309). A heat exchange plate (312) is provided at one end of the end groove (311) close to the rotating shaft (201), and the end of the heat exchange plate (312) matches the inner wall of the matching cavity (318). Thermal expansion gas is provided between the heat exchange plate (312) and the movable plate (313). A connecting spring (314) is provided on the inner wall of the end groove (311), and the other end of the connecting spring (314) is fixedly connected to the side wall of the movable plate (313). A plurality of elastic protective films (316) are evenly provided on the inner wall of the matching cavity (318), and the inner walls of the elastic protective films (316) all match the end of the follower rod (315).

9. A separation device for plant extraction as claimed in claim 1, characterized in that: The bottom of the vertical tube (401) is connected to the inner top of the matching cavity (318); a second thermometer (408) is provided on one side of the condenser (402); a detection end of the second thermometer (408) passes through the condenser (402) and is located in the inner cavity of the condenser (402); the bottom of the condenser (402) is connected to a drainage tube (403); the other end of the drainage tube (403) is connected to a storage tank (404); the bottom of the storage tank (404) is connected to a drip tube (405); a flow valve (409) is provided inside the drip tube (405); a collection bucket (406) is provided below the drip tube (405); and a plurality of round legs (407) are evenly provided at the bottom of the collection bucket (406).

10. The processing and purification process of a separation device for plant extraction according to claim 8, characterized in that: The following steps are involved: S1. Adding required plant raw materials and water into the evaporation chamber (102) and heating and distilling the mixture, wherein the steam in the evaporation chamber (102) reaches the end of the matching chamber (318), and the rotation shaft (201) drives the scraper (209) to rotate and scrape off water droplets attached to the inner walls of the evaporation chamber (102) and the matching chamber (318); S2. When the number of water droplets adsorbed on the outer surface of the elastic protective film (316) increases, the temperature of the matching cavity (318) at the corresponding position decreases, the volume of the thermally expanded gas inside the end groove (311) decreases, the connecting spring (314) drives the movable plate (313) to move closer to the end of the rotating shaft (201), and the movable plate (313) drives the follower rod (315) to move closer to the end of the rotating shaft (201), the blocking area of ​​the conduction hole (309) by the follower rod (315) decreases, and the amount of heat medium flowing inside the conduction hole (309) increases; S3, when the follower rod (315) moves toward the end of the rotating shaft (201), it simultaneously drives the elastic protective film (316) to undergo elastic deformation, the scraper (209) is squeezed with the elastic protective film (316) and moves toward the end of the rotating shaft (201), the scraper (209) drives the connecting rod (207) to squeeze the return spring (206) along the side groove (205), and the overlapping area of ​​the stirring hole (204) and the docking hole (208) is reduced; S4. When the scraper (209) is separated from the elastic protective film (316) and elastically squeezes and contacts with the next elastic protective film (316), elastic vibration occurs and self-vibration cleaning is achieved. The stirring range of the stirring blade (203) and the connecting rod (207) is increased, the overlapping area of ​​the stirring hole (204) and the docking hole (208) is increased, and the amount of plant material and water flowing is increased.

Images