Preparation method of usnea composite extract

Abstract

The application discloses the technical field of usma grass composite extraction liquid and discloses a preparation method of usma grass composite extraction liquid, which comprises the following steps: step one, preparing raw materials required for single extraction of the usma grass composite extraction liquid; step two, frying the peach kernel in step one at high temperature until it is black; step three, mixing the crushed peach kernel, usma grass leaves, usma grass seeds, lavender flowers, cultivated black nightshade seeds, eugenia uniflora and ginger roots in step two, and then adding the mixture into an extraction device to obtain the usma grass composite extraction liquid; the extraction device can press the powder that is prone to floating to below the water surface through the lifting filter screen, so that the powder and water can be fully stirred and mixed, and when the mixture is heated, the powder that is prone to floating can be prevented from floating to the water surface.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of usma grass composite extract, in particular to a preparation method of usma grass composite extract. BACKGROUND

[0002] Usma grass is a variety of Isatis tinctoria L, which is a two-year-old cruciferous Isatis herbaceous plant. The leaves are dark green and shaped like willow leaves. Usma grass is mainly used for nourishing hair. The existing usma grass composite extract is prepared by using usma grass as the main material and lavender flowers, cultivated balsam seeds, myrtle, ginger roots and peach kernels as auxiliary materials, so as to play the synergistic effect of various functional components and prevent hair loss to the greatest extent.

[0003] In the preparation process of the usma grass composite extract, various plant raw materials need to be crushed and stirred with water, then heated to dissolve effective substances in water, and finally the decoction liquid is filtered out and the supernatant is taken after standing for a period of time, so as to obtain the usma grass composite extract.

[0004] However, the crushed materials of usma grass leaves, lavender flowers and myrtle are easy to float on the water surface after stirring. In the middle and later stages of heating, the crushed materials sink due to water absorption, but in the early stage of heating, a lot of the crushed materials still float on the water surface, so that the effective substances in the crushed materials cannot be completely dissolved in water within the set heating time, thereby reducing the utilization rate of the crushed materials. In addition, the decoction liquid is left in the crushed material residue after filtration, and the residual decoction liquid is removed with the crushed material residue, thereby causing waste of raw materials.

[0005] Therefore, the present application provides a preparation method of usma grass composite extract to solve the above problems. SUMMARY

[0006] The present application aims to provide a preparation method of usma grass composite extract to solve the problems raised in the background.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a preparation method of usma grass composite extract, which comprises the following steps:

[0008] Step 1: prepare the raw materials required for single extraction of usma grass composite extract, including 10-22 parts of usma grass leaves, 6-10 parts of usma grass seeds, 12-23 parts of lavender flowers, 2.5-5 parts of cultivated balsam seeds, 5-7 parts of myrtle, 9-22 parts of ginger roots and 4.5-6.5 parts of peach kernels;

[0009] Step two: the peach kernel in step one is first fried at high temperature until it is black, then the fried peach kernel and the usma grass leaves, usma grass seeds, lavender flowers, cultivated black seed, myrtle, ginger roots in step one are all crushed, and then are placed for later use;

[0010] Step three: the crushed peach kernel, usma grass leaves, usma grass seeds, lavender flowers, cultivated black seed, myrtle, ginger roots in step two are mixed and then are added into an extraction device, and 15 times of pure water is added into the extraction device; the temperature of the extraction device is controlled at 94-100 DEG C, and is boiled for 40 minutes; then the temperature is lowered, and when the temperature is below 60 DEG C, the boiled liquid is obtained through the extraction device, and is placed for 24 hours to obtain the usma grass compound extraction liquid.

[0011] The extraction device in step two and step three comprises a shell, an inner container is placed in the shell, a hinge is arranged on the upper end of the outer wall of the shell, a flip cover is hingedly connected to the shell through the hinge, the flip cover is located on the upper end of the shell, a lifting plate is slidably connected to the top wall of the flip cover, the upper end of the lifting plate extends above the flip cover, a first driving mechanism for driving the lifting plate to slide is arranged between the lifting plate and the outer wall of the shell, the lower end of the lifting plate extends to the lower side of the flip cover and is fixedly connected with a lifting filter screen, the outer diameter of the lifting filter screen matches the inner diameter of the inner container, a stirring blade is rotatably connected to the lower side of the lifting filter screen, a second driving mechanism for driving the stirring blade to rotate is arranged between the stirring blade and the flip cover, a buckle is fixedly connected to the side of the upper end of the shell away from the hinge, a clamping groove is formed in the side of the lower end of the flip cover away from the hinge, the buckle can be clamped with the clamping groove, an automatic unlocking mechanism is arranged between the clamping groove and the lifting filter screen, an automatic fixing mechanism is arranged between the lifting filter screen and the flip cover, a filtering mechanism is arranged at the bottom of the inner container, and a heating plate for heating the inner container is arranged at the inner bottom of the shell.

[0012] As a further scheme of the present application, the first driving mechanism comprises a first motor, the first motor is fixedly connected with the outer wall of the shell, a gear is fixedly connected to the output shaft of the first motor, the output shaft of the first motor and the rotating shaft of the hinge are located on the same axis, the gear is engaged with a rack, and the rack is fixedly connected with the upper end of the lifting plate.

[0013] As a further scheme of the present application, the second driving mechanism comprises a second motor, the second motor is located above the flip cover and is fixedly connected with the flip cover, a hollow rotating shaft is fixedly connected to the output shaft at the lower end of the second motor, the lower end of the hollow rotating shaft is rotatably connected with the flip cover, a sliding rod is slidably connected to the lower end of the hollow rotating shaft, and the lower end of the sliding rod extends below the flip cover and is fixedly connected with the rotating shaft of the stirring blade.

[0014] As a further scheme of the present application, the automatic unlocking mechanism comprises a sliding block and an inclined groove, the sliding block is in sliding connection with the inner side of the clamping groove, the inclined groove is arranged on the outer wall of the lifting filter screen away from the hinge, one end of the sliding block can extend into the flip cover and can be in contact with the inclined surface of the inclined groove, the other end of the sliding block can be in contact with the clamping buckle, the upper side of the sliding block is fixedly connected with a fixed plate, and the fixed plate is fixedly connected between the inner wall of the clamping groove away from the hinge and the spring.

[0015] As a further scheme of the present application, the automatic fixing mechanism comprises a protruding block and a clamping buckle, the protruding block is fixedly connected with the top of the lifting filter screen, and the clamping buckle is fixedly connected with the inner top wall of the flip cover.

[0016] As a further scheme of the present application, the automatic inflation mechanism is arranged between the lifting filter screen and the flip cover, the automatic inflation mechanism comprises a cylinder shell, the cylinder shell is located above the flip cover and is fixedly connected with the flip cover, a piston is in sliding connection in the cylinder shell, a lifting rod is fixedly connected to the lower end of the piston, the lower end of the lifting rod extends below the flip cover and is provided with a sliding groove, a penetrating rod is in sliding connection in the sliding groove, the penetrating rod is fixedly connected with the lifting filter screen, a one-way air outlet pipe and a one-way air inlet pipe are respectively fixedly connected to the bottom of the cylinder shell, the lower end of the one-way air outlet pipe is fixedly communicated with the top wall of the flip cover, and the one-way air inlet pipe is in communication with the outside.

[0017] As a further scheme of the present application, a first one-way air valve is arranged on the one-way air outlet pipe, and a second one-way air valve is arranged on the one-way air inlet pipe.

[0018] As a further scheme of the present application, the filter mechanism comprises a liquid discharge nozzle, the upper end of the liquid discharge nozzle is threadedly connected with the discharge port of the inner container, a manual valve is arranged on the lower end of the liquid discharge nozzle, a first filter screen, a second filter screen and a third filter screen are sequentially arranged from bottom to top on the inner side of the upper end of the liquid discharge nozzle, a sealing ring is arranged between the third filter screen and the discharge port of the inner container on the inner side of the liquid discharge nozzle, the inner diameter of the sealing ring is the same as the inner diameter of the discharge port of the inner container, the inner diameter of the sealing ring is smaller than the outer diameter of the third filter screen, and the outer diameters of the third filter screen, the second filter screen and the first filter screen are the same.

[0019] The third filter screen, the second filter screen and the first filter screen are respectively a 60-mesh, a 180-mesh and a 600-mesh stainless steel screen, and the first filter screen has the same mesh number as the lifting filter screen.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] 1. The extraction device in the application can press the easily floating powder below the water surface through the lifting filter screen, so as to facilitate the sufficient stirring and mixing of the powder and water, and when the mixed liquid is heated, the easily floating powder can be prevented from floating to the water surface, so that all the powder can be in full contact with water at all times, and the effective substances in various powders can be efficiently dissolved in water, thereby improving the utilization rate of raw materials;

[0022] 2. The extraction device in the application can press the powder residue in the inner container downward through the lifting filter screen, and can squeeze out the decocting liquid remaining in the powder residue, and then discharge and collect the squeezed decocting liquid through the filtering mechanism, thereby further improving the utilization rate of raw materials.

[0023] 3. The automatic inflation mechanism in the application does not inflate the inner container during the process that the lifting filter screen presses the floating powder below the water surface, and inflates the inner container during the process that the lifting filter screen continues to move downward and press the powder residue in the inner container, thereby enhancing the air pressure in the inner container, and enhancing the efficiency of the decocting liquid remaining in the powder residue penetrating the powder residue layer and the filter layer in the filtering device, improving the recovery efficiency of the decocting liquid remaining in the powder residue, and further improving the utilization rate of raw materials. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The flow chart of the preparation method of the application;

[0025] Figure 2 The overall structure diagram of the extraction device;

[0026] Figure 3 The cross-sectional structure diagram of the shell and the flip cover;

[0027] Figure 4 The Figure 3 The local enlarged view of A in the figure;

[0028] Figure 5 The overall cross-sectional structure diagram of the extraction device;

[0029] Figure 6 The Figure 5 The local enlarged view of B in the figure;

[0030] Figure 7 The Figure 5 The local enlarged view of C in the figure.

[0031] In the drawings, the components represented by each reference sign are listed as follows:

[0032] 1, shell; 2, inner container; 3, hinge; 4, flip cover; 5, lifting plate; 6, lifting filter screen; 7, stirring blade; 8, buckle; 9, clamping groove; 10, first motor; 11, gear; 12, rack; 13, second motor; 14, hollow rotating shaft; 15, sliding rod; 16, sliding block; 17, inclined groove; 18, fixed plate; 19, spring; 20, protrusion; 21, clamping; 22, air cylinder shell; 23, piston; 24, lifting rod; 25, sliding groove; 26, through rod; 27, one-way air outlet pipe; 28, one-way air inlet pipe; 29, first one-way air valve; 30, second one-way air valve; 31, liquid discharge nozzle; 32, manual valve; 33, first filter screen; 34, second filter screen; 35, third filter screen; 36, sealing ring; 37, heating plate. DETAILED DESCRIPTION

[0033] Please refer to Figures 1-7 The present application provides a technical solution: a preparation method of a usma grass composite extract, which comprises the following steps:

[0034] Step one: prepare the raw materials required for single extraction of the usma grass composite extract, including 10-22 parts of usma grass leaves, 6-10 parts of usma grass seeds, 12-23 parts of lavender flowers, 2.5-5 parts of cultivated black nightshade seeds, 5-7 parts of myrtle, 9-22 parts of ginger roots, and 4.5-6.5 parts of peach kernels;

[0035] Step two: first, roast the peach kernels in step one at high temperature until they are black, then grind the roasted peach kernels and the usma grass leaves, usma grass seeds, lavender flowers, cultivated black nightshade seeds, myrtle, and ginger roots in step one, and then place them for later use;

[0036] Step three: mix the ground peach kernels, usma grass leaves, usma grass seeds, lavender flowers, cultivated black nightshade seeds, myrtle, and ginger roots in step two, add them to the extraction device, and add 15 times the amount of pure water to the extraction device; control the temperature of the extraction device at 94-100°, and cook for 40 minutes; then start cooling, and when the temperature reaches below 60℃, obtain the decoction through the extraction device, and after 24 hours of standing, take the supernatant to obtain the usma grass composite extract.

[0037] The extraction device in the second step and the third step comprises an outer shell 1, an inner container 2 is placed in the outer shell 1, a hinge 3 is arranged on the upper end of the outer wall of the outer shell 1, a flip cover 4 is hinged to the outer shell 1 through the hinge 3, the flip cover 4 is located on the upper end of the outer shell 1, a lifting plate 5 is slidingly connected to the top wall of the flip cover 4, the upper end of the lifting plate 5 extends above the flip cover 4, a first driving mechanism for driving the lifting plate 5 to slide is arranged between the lifting plate 5 and the outer wall of the outer shell 1, the lower end of the lifting plate 5 extends to the lower side of the flip cover 4 and is fixedly connected with a lifting filter screen 6, the outer diameter of the lifting filter screen 6 matches the inner diameter of the inner container 2, a stirring blade 7 is rotatably connected to the lower side of the lifting filter screen 6, a second driving mechanism for driving the stirring blade 7 to rotate is arranged between the stirring blade 7 and the flip cover 4, a buckle 8 is fixedly connected to the side of the upper end of the outer shell 1 away from the hinge 3, a clamping groove 9 is arranged on the side of the lower end of the flip cover 4 away from the hinge 3, the buckle 8 can be clamped with the clamping groove 9, an automatic unlocking mechanism is arranged between the clamping groove 9 and the lifting filter screen 6, an automatic fixing mechanism is arranged between the lifting filter screen 6 and the flip cover 4, a filtering mechanism is arranged at the bottom of the inner container 2, and a heating plate 37 for heating the inner container 2 is arranged at the inner bottom of the outer shell 1.

[0038] When the above scheme is put into practical use, the flip cover 4 is first opened, that is, the first driving mechanism is started in the forward direction, the first driving mechanism makes the lifting plate 5 slide upward, the lifting plate 5 pulls the lifting filter screen 6 to move upward, when the lifting filter screen 6 is about to contact the flip cover 4, the automatic fixing mechanism automatically fixes the lifting filter screen 6 and the flip cover 4, at the same time, the lifting filter screen 6 can trigger the automatic unlocking mechanism to separate the buckle 8 from the clamping groove 9, the first driving mechanism continues to apply upward pulling force to the lifting plate 5, so that the lifting plate 5 drives the lifting filter screen 6 and the flip cover 4 to flip upward until the flip cover 4 is completely opened; then various powders used to make the extraction liquid are put into the inner container 2 according to the set proportion, and fifteen times the amount of pure water is poured into the inner container 2; then the flip cover 4 is closed, that is, the first driving mechanism is operated in the reverse direction, and the flip cover 4 and the lifting filter screen 6 are flipped downward by reverse transmission, after the flip cover 4 is closed with the outer shell 1, the first driving mechanism continues to operate in the reverse direction, so that the lifting filter screen 6 moves downward, the lifting filter screen 6 continues to move downward to make the automatic fixing mechanism disengage, at the same time, the automatic unlocking mechanism is disabled, so that the buckle 8 is clamped with the clamping groove 9, and then the flip cover 4 is relatively fixed with the outer shell 1, when the lifting filter screen 6 moves downward to below the water surface to press the floated powders, the first driving mechanism stops operating; then the second driving mechanism is started, the second driving mechanism drives the stirring blade 7 to rotate, and the stirring blade 7 stirs various mixed powders in the water; after the powders are uniformly stirred, the second driving mechanism stops driving, and the heating plate 37 starts to heat the inner container 2, so that the water and the powders in the inner container 2 are heated to a set temperature, and the set temperature is maintained for forty minutes, so that the effective substances in the powders are dissolved in the water; after cooling to sixty degrees, the filter mechanism is opened, the decoction in the inner container 2 is filtered by the filter mechanism and then discharged into a prepared container; then the first driving mechanism is started in the reverse direction, the lifting filter screen 6 continues to move downward, and the lifting filter screen 6 squeezes out the decoction remaining in the powder residue, and the squeezed decoction is discharged through the filter mechanism; finally, the first driving mechanism is started in the forward direction until the flip cover 4 is completely opened, and the powder residue in the inner container 2 is taken out, so as to prepare the next batch of usma compound extraction liquid; in this way, the extraction device can press the powders that are easy to float below the water surface through the lifting filter screen 6, so as to facilitate the full stirring and mixing of the powders and water, and when the mixed liquid is heated, the powders that are easy to float can be prevented from floating to the water surface, so that all the powders can be fully contacted with the water, and the effective substances in the various powders can be efficiently dissolved in the water, thereby improving the utilization rate of raw materials; the extraction device can squeeze the powder residue in the inner container 2 downward through the lifting filter screen 6, can squeeze out the decoction remaining in the powder residue, and then collects and recycles the squeezed decoction through the filter mechanism, thereby further improving the utilization rate of raw materials.

[0039] As a further scheme of the present application, the first driving mechanism comprises a first motor 10, which is fixedly connected with the outer wall of the shell 1, and the output shaft of the first motor 10 is fixedly connected with a gear 11, the output shaft of the first motor 10 and the rotating shaft of the hinge 3 are located on the same axis, the gear 11 is engaged with a rack 12, and the rack 12 is fixedly connected with the upper end of the lifting plate 5.

[0040] When the flip cover 4 needs to be opened, the first motor 10 drives the gear 11 to rotate clockwise, the gear 11 drives the lifting plate 5 to slide up through the rack 12, the lifting plate 5 drives the lifting filter screen 6 to move up, when the lifting filter screen 6 is about to contact the flip cover 4, the automatic fixing mechanism fixes the lifting filter screen 6 relative to the flip cover 4, at the same time, the automatic unlocking mechanism separates the buckle 8 from the clamping groove 9, with the continuous clockwise rotation of the gear 11, the flip cover 4 and the lifting filter screen 6 will be flipped upwards along with the clockwise rotation of the gear 11, and the device is completely opened; when the flip cover 4 needs to be closed, the first motor 10 drives the gear 11 to rotate counterclockwise, and the flip cover 4 and the lifting filter screen 6 will be flipped downwards along with the counterclockwise rotation of the gear 11 until the lower end of the flip cover 4 contacts the upper end of the shell 1, with the continuous counterclockwise rotation of the gear 11, the lifting filter screen 6 continues to move downwards, so that the automatic fixing mechanism is separated, and the automatic unlocking mechanism is disabled, so that the buckle 8 is clamped with the clamping groove 9, and then the flip cover 4 is fixed relative to the shell 1; after the flip cover 4 is closed and fixed relative to the shell 1, the rotating gear 11 can drive the lifting filter screen 6 to move up or down through the rack 12 and the lifting plate 5.

[0041] As a further scheme of the present application, the second driving mechanism comprises a second motor 13, which is located above the flip cover 4 and fixedly connected with the flip cover 4, and the output shaft at the lower end of the second motor 13 is fixedly connected with a hollow rotating shaft 14, the lower end of the hollow rotating shaft 14 is rotatably connected with the flip cover 4, and the lower end of the hollow rotating shaft 14 is slidably connected with a sliding rod 15, and the lower end of the sliding rod 15 extends to below the flip cover 4 and is fixedly connected with the rotating shaft of the stirring blade 7.

[0042] When the second motor 13 is started, the second motor 13 drives the hollow rotating shaft 14 to rotate, the hollow rotating shaft 14 drives the sliding rod 15 to rotate, and the sliding rod 15 drives the stirring blade 7 to rotate, so as to realize the mixing and stirring of various powders and water; when the lifting filter screen 6 is lifted, the sliding rod 15 will slide up and down along the hollow rotating shaft 14 along with the lifting of the lifting filter screen 6.

[0043] As a further scheme of the present application, the automatic unlocking mechanism comprises a sliding block 16 and a slope groove 17, the sliding block 16 is in sliding connection with the inner side of the clamping groove 9, the slope groove 17 is arranged on the outer wall of the lifting filter screen 6 away from the hinge 3, one end of the sliding block 16 can extend into the flip cover 4 and can be in contact with the slope surface of the slope groove 17, the other end of the sliding block 16 can be in contact with the buckle 8, the upper side of the sliding block 16 is fixedly connected with a fixed plate 18, and the side of the fixed plate 18 away from the hinge 3 is fixedly connected with a spring 19 between the inner wall of the clamping groove 9.

[0044] When the lifting filter screen 6 is moved upward to be in contact with the flip cover 4, the protrusion 20 on the lifting filter screen 6 is just clamped into the clamping jaw 21 on the flip cover 4, so that the lifting filter screen 6 is relatively fixed with the flip cover 4.

[0045] When the flip cover 4 is closed and the lifting filter screen 6 continues to move downward, the lifting filter screen 6 can pull out the protrusion 20 from the clamping jaw 21, so that the lifting filter screen 6 is separated from the flip cover 4.

[0046] When the flip cover 4 is closed and the lifting filter screen 6 continues to move downward, the lifting filter screen 6 can pull out the protrusion 20 from the clamping jaw 21, so that the lifting filter screen 6 is separated from the flip cover 4.

[0047] As a further scheme of the present application, the automatic unlocking mechanism comprises a sliding block 16 and a slope groove 17, the sliding block 16 is in sliding connection with the inner side of the clamping groove 9, the slope groove 17 is arranged on the outer wall of the lifting filter screen 6 away from the hinge 3, one end of the sliding block 16 can extend into the flip cover 4 and can be in contact with the slope surface of the slope groove 17, the other end of the sliding block 16 can be in contact with the buckle 8, the upper side of the sliding block 16 is fixedly connected with a fixed plate 18, and the side of the fixed plate 18 away from the hinge 3 is fixedly connected with a spring 19 between the inner wall of the clamping groove 9.

[0048] In the actual use, the rod 26 can slide down to the bottom of the chute 25 when the lifting filter screen 6 is lowered to press the floating powder below the water surface. When the lifting filter screen 6 needs to continue to be lowered to press the powder residue, the lifting filter screen 6 can pull down the lifting rod 24 through the rod 26, the lifting rod 24 drives the piston 23 to slide down, the piston 23 presses the air in the air cylinder shell 22, the air in the air cylinder shell 22 enters the inner container 2 through the one-way air outlet pipe 27, so that the air pressure in the inner container 2 is increased. In this way, the automatic inflation mechanism does not inflate the inner container 2 when the lifting filter screen 6 is lowered to press the floating powder below the water surface, and inflates the inner container 2 when the lifting filter screen 6 continues to be lowered to press the powder residue in the inner container 2, so that the air pressure in the inner container 2 is increased, the efficiency of the residual decoction in the powder residue to penetrate the powder residue layer and the filter layer in the filter device is increased, the recovery efficiency of the residual decoction in the powder residue is improved, and the utilization rate of the raw materials is further improved. After the lifting filter screen 6 completes the pressing of the powder residue, the lifting filter screen 6 can push up the lifting rod 24 through the rod 26, the lifting rod 24 pushes the piston 23 to slide up, the one-way air outlet pipe 27 is automatically closed, the one-way air inlet pipe 28 is automatically opened, and the external air is sucked into the air cylinder shell 22 through the one-way air inlet pipe 28, so as to inflate the inner container 2 next time.

[0049] As a further scheme of the present application, the one-way air outlet pipe 27 is provided with a first one-way air valve 29, and the one-way air inlet pipe 28 is provided with a second one-way air valve 30. In operation, when the piston 23 slides down, the second one-way air valve 30 blocks the one-way air inlet pipe 28 under the action of the air pressure difference, and the first one-way air valve 29 is automatically opened, so that the air in the air cylinder shell 22 can enter the inner container 2 through the one-way air outlet pipe 27. When the piston 23 slides up, the first one-way air valve 29 blocks the one-way air outlet pipe 27, and the second one-way air valve 30 is automatically opened, so that the external air can be sucked into the air cylinder shell 22 through the one-way air inlet pipe 28.

[0050] As a further scheme of the present application, the filter mechanism comprises a liquid discharge nozzle 31, the upper port of the liquid discharge nozzle 31 is threadedly connected with the discharge port at the bottom of the inner container 2, the lower port of the liquid discharge nozzle 31 is provided with a manual valve 32, the inner side of the upper port of the liquid discharge nozzle 31 is sequentially placed from bottom to top with a first filter screen 33, a second filter screen 34 and a third filter screen 35, the inner side of the liquid discharge nozzle 31 is provided with a sealing ring 36 between the third filter screen 35 and the discharge port of the inner container 2, the inner diameter of the sealing ring 36 is the same as the inner diameter of the discharge port of the inner container 2, the inner diameter of the sealing ring 36 is smaller than the outer diameter of the third filter screen 35, and the outer diameters of the third filter screen 35, the second filter screen 34 and the first filter screen 33 are the same.

[0051] When the above scheme is put into practical use, when the decocting liquid in the inner container 2 needs to be discharged, the manual valve 32 is opened, the decocting liquid in the inner container 2 is filtered in turn through the third filter screen 35, the second filter screen 34 and the first filter screen 33, and finally discharged through the lower end port of the liquid discharge nozzle 31; the liquid discharge nozzle 31 can be screwed off from the discharge port of the inner container 2, so as to facilitate cleaning or replacement of the third filter screen 35, the second filter screen 34 and the first filter screen 33.

[0052] The third filter screen 35, the second filter screen 34 and the first filter screen 33 are respectively 60-mesh, 180-mesh and 600-mesh stainless steel screen meshes, and the first filter screen 33 is the same in mesh number as the lifting filter screen 6.

Claims

1. A method for preparing a composite extract of Equisetum arvense, characterized by: The preparation method comprises the following steps: Step one: prepare raw materials for single extraction of Usnea composite extract, including 10-22 parts of Usnea leaves, 6-10 parts of Usnea seeds, 12-23 parts of lavender flowers, 2.5-5 parts of cultivated black seed, 5-7 parts of myrtle, 9-22 parts of ginger roots, and 4.5-6.5 parts of peach kernels; Step two: first, roast the peach kernels in step one at high temperature until they are black, then crush the roasted peach kernels and the Usnea leaves, Usnea seeds, lavender flowers, cultivated black seed, myrtle, and ginger roots in step one, and then place them aside for later use; Step three: mix the crushed peach kernels, Usnea leaves, Usnea seeds, lavender flowers, cultivated black seed, myrtle, and ginger roots in step two, then add them to an extraction device, and add 15 times the amount of pure water to the extraction device; control the temperature of the extraction device at 94-100°C, and cook for 40 minutes; then start cooling, and when the temperature reaches below 60°C, obtain the decoction through the extraction device, and after 24 hours of standing, take the supernatant to obtain the Usnea composite extract; The extraction device in step three comprises an outer shell (1), an inner container (2) placed in the outer shell (1), a hinge (3) provided on the upper end of one side of the outer wall of the outer shell (1), a flip cover (4) hinged to the outer shell (1) through the hinge (3), the flip cover (4) located on the upper end of the outer shell (1), a lifting plate (5) slidingly connected to the top wall of the flip cover (4), the lifting plate (5) extending above the flip cover (4) at the upper end, a first driving mechanism provided between the lifting plate (5) and the outer wall of the outer shell (1) for driving the lifting plate (5) to slide, a lifting filter screen (6) fixedly connected to the lower end of the lifting plate (5) extending to the lower side of the flip cover (4), the outer diameter of the lifting filter screen (6) matching the inner diameter of the inner container (2), a stirring blade (7) rotatably connected to the lower side of the lifting filter screen (6), a second driving mechanism provided between the stirring blade (7) and the flip cover (4) for driving the stirring blade (7) to rotate, a buckle (8) fixedly connected to the side of the upper end of the outer shell (1) away from the hinge (3), a clamping groove (9) formed in the side of the lower end of the flip cover (4) away from the hinge (3), the buckle (8) capable of being clamped with the clamping groove (9), an automatic unlocking mechanism provided between the clamping groove (9) and the lifting filter screen (6), an automatic fixing mechanism provided between the lifting filter screen (6) and the flip cover (4), a filter mechanism provided at the bottom of the inner container (2), and a heating plate (37) provided at the inner bottom of the outer shell (1) for heating the inner container (2); The automatic inflating mechanism is arranged between the lifting filter screen (6) and the flip cover (4), and comprises a cylinder shell (22), the cylinder shell (22) is arranged above the flip cover (4) and is fixedly connected with the flip cover (4), a piston (23) is slidably connected in the cylinder shell (22), the lower end of the piston (23) is fixedly connected with a lifting rod (24), the lifting rod (24) extends to below the flip cover (4) and is provided with a sliding groove (25), a penetrating rod (26) is slidably connected in the sliding groove (25), the penetrating rod (26) is fixedly connected with the lifting filter screen (6), the bottom of the cylinder shell (22) is fixedly connected with a one-way air outlet pipe (27) and a one-way air inlet pipe (28) respectively, the lower end of the one-way air outlet pipe (27) is fixedly communicated with the top wall of the flip cover (4), and the one-way air inlet pipe (28) is communicated with the outside.

2. The preparation method of the composite extract of Equisetum according to claim 1, characterized in that: The first driving mechanism comprises a first motor (10), the first motor (10) is fixedly connected with the outer wall of the shell (1), the output shaft of the first motor (10) is fixedly connected with a gear (11), the output shaft of the first motor (10) and the rotating shaft of the hinge (3) are located on the same axis, the gear (11) is engaged with a rack (12), and the rack (12) is fixedly connected with the upper end of the lifting plate (5).

3. The method for preparing a compound extract of Usma as described in claim 1, characterized in that: The second driving mechanism comprises a second motor (13), the second motor (13) is arranged above the flip cover (4) and is fixedly connected with the flip cover (4), the output shaft at the lower end of the second motor (13) is fixedly connected with a hollow rotating shaft (14), the lower end of the hollow rotating shaft (14) is rotatably connected with the flip cover (4), the lower end of the hollow rotating shaft (14) is slidably connected with a sliding rod (15), and the lower end of the sliding rod (15) extends to below the flip cover (4) and is fixedly connected with the rotating shaft of the stirring blade (7).

4. The method for preparing a compound extract of Usma as described in claim 1, characterized in that: The automatic unlocking mechanism comprises a sliding block (16) and an inclined groove (17), the sliding block (16) is slidably connected with the inner side of the clamping groove (9), the inclined groove (17) is arranged on the outer wall of the lifting filter screen (6) away from the hinge (3), one end of the sliding block (16) can extend into the flip cover (4) and can be in contact with the inclined surface of the inclined groove (17), the other end of the sliding block (16) can be in contact with the clasp (8), the upper side of the sliding block (16) is fixedly connected with a fixed plate (18), and the side of the fixed plate (18) away from the hinge (3) is fixedly connected with a spring (19) between the inner wall of the clamping groove (9).

5. The method of claim 1, wherein the method is characterized by: The automatic fixing mechanism comprises a protruding block (20) and a clamping clamp (21), the protruding block (20) is fixedly connected with the top of the lifting filter screen (6), the clamping clamp (21) is fixedly connected with the inner top wall of the flip cover (4), and the protruding block (20) can be clamped with the clamping clamp (21).

6. The method of claim 1, wherein the method is characterized by: A first one-way air valve (29) is arranged on the one-way air outlet pipe (27), and a second one-way air valve (30) is arranged on the one-way air inlet pipe (28).

7. The method of claim 1, wherein the method is characterized by: The filter mechanism includes a liquid discharge nozzle (31), the upper port of the liquid discharge nozzle (31) is threadedly connected with the discharge port of the inner container (2) bottom, the lower port of the liquid discharge nozzle (31) is provided with a manual valve (32), the inside of the upper port of the liquid discharge nozzle (31) is sequentially placed from bottom to top with a first filter screen (33), a second filter screen (34) and a third filter screen (35), the inside of the liquid discharge nozzle (31) is provided with a sealing ring (36) between the third filter screen (35) and the discharge port of the inner container (2), the inner diameter of the sealing ring (36) is same with the inner diameter of the discharge port of the inner container (2), the inner diameter of the sealing ring (36) is smaller than the outer diameter of the third filter screen (35), the outer diameters of the third filter screen (35), the second filter screen (34) and the first filter screen (33) are same.

8. The method for preparing a compound extract of Usma as described in claim 7, characterized in that: The third filter screen (35), the second filter screen (34) and the first filter screen (33) are respectively 60-mesh, 180-mesh and 600-mesh stainless steel screen, the first filter screen (33) has the same mesh number with the lifting filter screen (6).

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