Herbal traditional Chinese medicine oral liquid preparation device

Abstract

The invention belongs to the technical field of oral liquid processing, and discloses a herbal traditional Chinese medicine oral liquid preparation device which comprises a rack, a supporting cylinder is fixedly connected to the upper portion of the rack, a feeding pipe is fixedly connected to the top of the supporting cylinder, a filtering cylinder is fixedly connected to the interior of the supporting cylinder, and the filtering cylinder communicates with the feeding pipe; a filter pressing fine screen and a fine filter screen are arranged in the filter cartridge, the fine filter screen is located below the filter pressing fine screen, a supporting pipe is slidably connected to the middle of the filter cartridge, a coarse filter screen is arranged in the supporting pipe and located between the filter pressing fine screen and the fine filter screen, a liquid outlet is formed in the side wall of the filter cartridge, and an overflow opening is formed in the side wall of the filter pressing fine screen. A liquid outlet channel communicated with the liquid outlet is formed in the filter cartridge; a driving mechanism for driving the fine filter screen to move upwards is arranged in the filter cartridge, and when the fine filter screen moves upwards, the supporting pipe can be driven to move upwards. The device has the effect of improving the filtering efficiency and quality.

Description

Technical Field

[0001] The present invention relates to the technical field of oral liquid processing, and particularly relates to a device for preparing herbal Chinese medicine oral liquid. Background Art

[0002] The main components of herbal Chinese medicine oral liquid usually come from Chinese herbal medicines, such as Chinese medicinal materials, plant extracts, etc. During the preparation of herbal Chinese medicine oral liquid, the effective components need to be extracted from the raw materials first. After extraction, the herbal extract needs to be filtered to remove impurities and suspended solids. Filtration can be carried out by methods such as pressure filtration, vacuum filtration or centrifugal filtration. The filtered medicinal liquid needs to be concentrated to reach an appropriate concentration, and finally, appropriate excipients are added to the concentrated medicinal liquid and packaged.

[0003] Referring to the Chinese patent document with the authorized announcement number CN116550003B, a drug separation and extraction device for the production of Banlangen oral liquid is disclosed, including a reaction kettle for steaming Banlangen, a heater is provided on the reaction kettle, a pump body is installed below the side wall of the reaction kettle, a discharge port is opened on the reaction kettle, a sealing piece is clamped on the discharge port, a separation mechanism for separating Banlangen residues is provided on the reaction kettle, a regulating mechanism for adjusting the pressing force is provided on the reaction kettle, and a impurity removal mechanism for adsorbing liquid impurities is provided below the outside of the reaction kettle. By pressing the pressing member against the medicinal residues and moving in the up and down opposite directions, the pressing effect can be improved.

[0004] In view of the above related technologies, during the preparation of herbal Chinese medicine oral liquid, the generated medicinal residues usually contain large and small medicinal residues. When filtering the medicinal residues, the small filter residues are likely to block the filter screen, thereby affecting the filtration efficiency. At the same time, during the pressing process of the medicinal residues, the small filter residues may pass through the filter screen under the action of external force, thereby affecting the quality of the solution. Summary of the Invention

[0005] In view of this, the present invention provides a device for preparing herbal Chinese medicine oral liquid, aiming to solve the problems of low filtration efficiency and low quality of the filtered solution in the existing device.

[0006] To solve the above technical problems, the present invention provides a preparation device for herbal Chinese medicine oral liquid, which includes a frame. A support cylinder is fixedly connected above the frame. A feed pipe is fixedly connected to the top of the support cylinder. A filter cylinder is fixedly connected inside the support cylinder. The filter cylinder is communicated with the feed pipe. A pressure filter fine mesh and a fine mesh are arranged inside the filter cylinder. The fine mesh is located below the pressure filter fine mesh. A support pipe is slidably connected to the middle of the filter cylinder. A coarse filter mesh is arranged inside the support pipe. The coarse filter mesh is located between the pressure filter fine mesh and the fine mesh. A liquid outlet is opened on the side wall of the filter cylinder. An overflow port is opened on the side wall of the pressure filter fine mesh. A liquid outlet channel communicated with the liquid outlet is opened inside the filter cylinder. A driving mechanism for driving the fine mesh to move upward is arranged inside the filter cylinder. When the fine mesh moves upward, it can drive the support pipe to move upward.

[0007] By adopting the above technical solution, the coarse filter mesh first filters the medicinal residues and then the fine filter mesh filters the medicinal residues, so that the medicinal residues are divided into coarse medicinal residues and fine medicinal residues. The filtration efficiency of the medicinal residues can be initially improved through two - stage filtration. Then, the fine filter mesh is pushed upward to press - filter the medicinal residues. Since the pressure filter fine mesh is located above the coarse medicinal residues, the coarse medicinal residues can filter the fine medicinal residues, thereby reducing the probability of the fine medicinal residues blocking the pressure filter fine mesh. The filtered liquid medicine can flow from the overflow port through the liquid outlet channel to the liquid outlet, thereby further reducing the probability of the medicinal residues mixing into the liquid medicine and improving the quality of the liquid medicine.

[0008] Optionally, a first clamping block and a second clamping block are horizontally slidably connected to the inner wall of the support pipe. The coarse filter mesh is arranged between the first clamping block and the second clamping block. The coarse filter mesh can cross over the first clamping block. A spring pin is arranged on the side wall of the pressure filter fine mesh. A clamping groove adapted to the spring pin is opened on the inner wall of the support pipe. A third clamping block is horizontally slidably connected to the bottom of the inner wall of the support pipe. When the fine filter mesh moves upward, it can push the third clamping block to make the support pipe move upward. After the support pipe is connected to the pressure filter fine mesh, the fine filter mesh can cross over the third clamping block.

[0009] By adopting the above technical solution, the first clamping block and the second clamping block can temporarily fix the position of the coarse filter mesh. When the fine filter mesh moves upward, it first abuts against the third clamping block and then pushes the third clamping block to move upward together with the support pipe. During the upward movement of the support pipe, it can be connected to the pressure filter fine mesh under the action of the spring pin. Then, during the upward movement of the fine filter mesh, the third clamping block is squeezed into the inner wall of the support pipe and the fine filter mesh crosses over the third clamping block. The coarse filter mesh can cross over the first clamping block. Through the movement of the fine filter mesh and the coarse filter mesh, the medicinal residues can be press - filtered, thereby pressing out the liquid medicine in the medicinal residues. After the pressure filter fine mesh is connected to the support pipe, the coarse filter mesh and the fine filter mesh are located inside the support pipe. When the pressure filter fine mesh is taken out, the coarse filter mesh and the fine filter mesh can be taken out simultaneously, which is beneficial to discharging the filtered medicinal residues.

[0010] Optionally, the coarse filter screen includes a support frame disposed between the first clamping block and the second clamping block. A sliding plate is vertically slidably connected above the support frame. A plurality of connecting pipes and extrusion rods are fixedly connected to the top of the support frame. The connecting pipes and the extrusion rods are both slidably connected to the sliding plate. First return springs are sleeved on both the connecting pipes and the extrusion rods.

[0011] By adopting the above technical solution, since the coarse medicinal residues are relatively large, the gaps between the coarse medicinal residues are too large, resulting in low efficiency when compressing them. The arrangement of the extrusion rod can extrude the coarse press, thereby accelerating the speed of squeezing out the medicinal liquid and improving the filtration efficiency.

[0012] Optionally, when the coarse filter screen moves up or down, it can cross the first clamping block. After the fine filter screen crosses the second clamping block, the second clamping block can support the fine filter screen. The second clamping block and the third clamping block have the same shape.

[0013] By adopting the above technical solution, when the coarse filter screen moves up or down, it can squeeze the first clamping block to shrink into the inner wall of the support tube. When the coarse filter screen moves up and crosses the first clamping block, it can compress the medicinal residues. When the coarse filter screen moves down during installation, it can cross the first clamping block to initially fix its position. The arrangement of the second clamping block and the third clamping block enables the fine filter screen to cross the second clamping block and the third clamping block, and at the same time can limit and support the position of the fine filter screen.

[0014] Optionally, the driving mechanism includes a hydraulic cylinder fixedly installed at the bottom of the filter cylinder. The driving shaft of the hydraulic cylinder is fixedly connected with a support disc. A support column is fixedly connected to the filter cylinder. A support ring is vertically slidably connected to the support disc. The support ring can support the fine filter screen, and the support column can support the support ring.

[0015] By adopting the above technical solution, the arrangement of the support ring enables there to be a liquid outlet space at the bottom of the fine filter screen. During the process of the hydraulic cylinder driving the fine filter screen to move up, after the support ring breaks away from the support of the support column, it slides into the interior of the support disc, so that the fine filter screen can move up evenly under force, and at the same time can block the bottom of the fine filter screen to prevent fine medicinal residues from passing through the fine filter screen and affecting the quality of the medicinal liquid.

[0016] Optionally, second return springs are fixedly connected between the first clamping block, the second clamping block, the third clamping block and the inner wall of the support tube.

[0017] By adopting the above technical solution, the arrangement of the second return springs can enable the first clamping block, the second clamping block and the third clamping block to shrink into the inner wall of the support tube and then return to the initial state.

[0018] Optionally, the feed pipe is arranged in a funnel shape.

[0019] By adopting the above technical solution, the funnel-shaped feed pipe is conducive to smoothly guiding the material into the filter cylinder, and at the same time can reduce the adhesion and accumulation of the material on the pipe wall, so as to ensure that the material continuously and stably enters the filter cylinder.

[0020] Optionally, an L-shaped sliding groove is provided on the inner wall of the filter cylinder, and a slider capable of sliding in the L-shaped sliding groove is fixedly connected to the side wall of the pressure filtration fine mesh.

[0021] By adopting the above technical solution, the slider can simply fix the pressure filtration fine mesh after sliding in the L-shaped sliding groove, which is convenient for the removal of the pressure filtration fine mesh in the subsequent process.

[0022] In summary, compared with the prior art, the present invention includes at least one of the following beneficial technical effects: 1. Through two-stage filtration, the medicinal residues can be divided into coarse medicinal residues and fine medicinal residues, which is conducive to the filtration of the medicinal liquid, thereby initially improving the filtration efficiency of the medicinal residues. Then, the filter residue is pressure-filtered. The fine medicinal residues are located below the coarse medicinal residues, and the coarse medicinal residues can filter the fine medicinal residues during the upward pressure filtration process, thereby reducing the probability of the fine medicinal residues blocking the filter screen and improving the quality of the medicinal liquid; 2. By setting the overflow port, the medicinal liquid flows upward and is collected, thereby reducing the probability of the medicinal residues flowing out together with the medicinal liquid, which is conducive to improving the quality of the medicinal liquid; 3. During the pressure filtration process of the medicinal residues, the support pipe can be connected to the pressure filtration fine mesh. The coarse filter screen is located inside the support pipe, and the fine filter screen can enter the support pipe. When the pressure filtration fine mesh is taken out, the coarse filter screen and the fine filter screen can be taken out together, which is conducive to the discharge of the medicinal residues. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of the structures of the fine filter screen and the coarse filter screen of an embodiment of the present invention; Figure 3 It is a schematic diagram of the assembly structure of the second clamping block and the support pipe of an embodiment of the present invention; Figure 4 It is a schematic diagram of the assembly structure of the pressure filtration fine mesh and the support pipe of an embodiment of the present invention; Figure 5 It is a schematic diagram of the assembly structure of the support ring and the support disk of an embodiment of the present invention; Figure 6 It is a schematic diagram of the structure of the filter cylinder of an embodiment of the present invention; Figure 7 It is a schematic diagram of the assembly structure of the slider and the pressure filtration fine mesh of an embodiment of the present invention; Figure 8 For an embodiment of the present invention Figure 2 Partial enlarged view of area A in.

[0024] Description of reference numerals: 1, frame; 11, support cylinder; 111, liquid outlet pipe; 12, feed pipe; 13, filter cylinder; 131, liquid outlet; 132, liquid outlet channel; 133, liquid inlet; 134, end cap; 14, pressure filter fine mesh; 141, overflow port; 15, fine filter mesh; 16, support pipe; 17, coarse filter mesh; 171, support frame; 172, sliding plate; 173, connecting pipe; 174, extrusion rod; 175, first return spring; 2, drive mechanism; 21, hydraulic cylinder; 22, support disk; 23, support column; 24, support ring; 3, first latch; 31, second latch; 32, spring pin; 33, card slot; 34, third latch; 4, L-shaped chute; 41, slider. Detailed implementation manners

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will combine the Figures 1-8 of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0026] Referring to Figure 1 and Figure 2 , a preparation device for herbal Chinese medicine oral liquid includes a frame 1 placed on a horizontal plane, a filtering mechanism for filtering the medicinal residues twice, and a pressure filtering mechanism for squeezing the filter mesh. A support cylinder 11 is fixedly connected to the top of the frame 1, and a funnel-shaped feed pipe 12 is fixedly connected to the inner wall of the support cylinder 11. The filtering mechanism and the pressure filtering mechanism are both arranged in a filter cylinder 13. A filter cylinder 13 is fixedly connected inside the support cylinder 11, and the filter cylinder 13 and the support cylinder 11 are coaxially arranged. A liquid outlet 131 is opened in the middle of the filter cylinder 13 for the filtered medicinal liquid to flow out. A liquid outlet pipe 111 is connected to the support cylinder 11 to collect the medicinal liquid.

[0027] Referring to Figure 2 and Figure 3 , the filtering mechanism includes a fine filter mesh 15 and a coarse filter mesh 17. The coarse filter mesh 17 is located above the fine filter mesh 15. A plurality of liquid inlets 133 are opened on the side wall of the filter cylinder 13. The original medicinal residue liquid can enter the filter cylinder 13 through the feed pipe 12 and the liquid inlets 133. A support pipe 16 is vertically slidably connected in the filter cylinder 13. A first latch 3 and a second latch 31 are horizontally slidably connected in the support pipe 16. The coarse filter mesh 17 is located between the first latch 3 and the second latch 31, and the fine filter mesh 15 is located above the liquid outlet 131.

[0028] When it is necessary to filter the residue raw materials, the residue raw materials are introduced into the feed pipe 12. The residue is first filtered by the coarse filter screen 17, so that the coarse residue accumulates on the coarse filter screen 17. Then, the fine filter screen 15 filters the residue again. The liquid medicine passes through the fine filter screen 15 and flows out from the liquid outlet 131, thereby realizing the preliminary collection of the liquid medicine.

[0029] Refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 , the pressure filtration mechanism includes a driving mechanism 2 for driving the fine filter screen 15 to move upward, a third clamping block 34, a pressure filtration fine mesh 14, an overflow port 141 and a liquid outlet channel 132. The driving mechanism 2 includes a hydraulic cylinder 21, a support disk 22, a support column 23 and a support ring 24. The hydraulic cylinder 21 is fixedly installed at the bottom of the filter cylinder 13. The support disk 22 is fixedly connected to the driving shaft of the hydraulic cylinder 21. The support column 23 is fixedly connected to the inner bottom wall of the filter cylinder 13. The support ring 24 is slidably connected to the support disk 22. The support ring 24 can support the fine filter screen 15 and at the same time leave a gap between the fine filter screen 15 and the support disk 22 to facilitate the outflow of the liquid medicine. The support column 23 can support the support ring 24 so that the top of the support ring 24 extends out of the support disk 22. The third clamping block 34 is slidably connected horizontally to the inner wall of the support pipe 16. Both the third clamping block 34 and the second clamping block 31 are arranged as trapezoidal blocks. There is a gap between the support disk 22 and the filter cylinder 13 to facilitate the support disk 22 to cross over the third clamping block 34. A second return spring is fixedly connected between the first clamping block 3, the second clamping block 31, the third clamping block 34 and the inner wall of the support pipe 16 to facilitate the reset of the first clamping block 3, the second clamping block 31 and the third clamping block 34.

[0030] Refer to Figure 6 and Figure 7 , an L-shaped sliding groove 4 is opened on the inner wall of the filter cylinder 13. A slider 41 capable of sliding in the L-shaped sliding groove 4 is fixedly connected to the side wall of the pressure filtration fine mesh 14. The installation of the pressure filtration fine mesh 14 in the filter cylinder 13 can be realized by the sliding of the slider 41 in the L-shaped sliding groove 4.

[0031] Refer to Figure 4 , Figure 6 and Figure 7 , a clamping groove 33 is opened on the inner wall of the support pipe 16. A spring pin 32 matched with the clamping groove 33 is arranged on the outer side wall of the pressure filtration fine mesh 14. The pressure filtration fine mesh 14 is arranged at the top of the filter cylinder 13. The overflow port 141 is opened on the top side wall of the pressure filtration fine mesh 14 to facilitate the outflow of the liquid medicine passing through the pressure filtration fine mesh 14. The liquid outlet channel 132 is opened on the inner wall of the filter cylinder 13, and the liquid medicine flowing out from the overflow port 141 can flow into the liquid outlet channel 132 and flow from the liquid outlet channel 132 to the liquid outlet 131. The top of the filter cylinder 13 is detachably connected with an end cover 134.

[0032] When the coarse filter screen 17 moves upward or downward, it can squeeze the first clamping block 3 so that the first clamping block 3 retracts into the inner wall of the support tube 16, facilitating the coarse filter screen 17 to cross over the first clamping block 3. This is beneficial for the installation of the coarse filter screen 17 and enables the coarse filter screen 17 to move to squeeze the coarse medicinal residues. When the fine filter screen 15 moves upward, it can squeeze and cross over the second clamping block 31 and the third clamping block 34. However, the second clamping block 31 and the third clamping block 34 can support the coarse filter screen 17 or the fine filter screen 15 to achieve the limit of the coarse filter screen 17 or the fine filter screen 15.

[0033] Refer to Figure 3 and Figure 8 As shown in FIGS. and

[0033] , the coarse filter screen 17 includes a support frame 171, a sliding plate 172, a communicating pipe 173, a pressing rod 174, and a first return spring 175. The support frame 171 is located between the first clamping block 3 and the second clamping block 31 and is arranged in a cylindrical shape. The communicating pipe 173 and the pressing rod 174 are both fixedly connected to the inner bottom wall of the support frame 171. The sliding plate 172 is sleeved on the side walls of the communicating pipe 173 and the pressing rod 174. The first return spring 175 is sleeved on the communicating pipe 173 and the pressing rod 174 and is fixedly connected between the sliding plate 172 and the support frame 171. Since the volume of the coarse medicinal residues is large, the squeezing effect on the coarse medicinal residues can be enhanced by the ramming of the pressing rod 174, which is beneficial for improving the working efficiency.

[0034] When it is necessary to press-filter the medicinal residues, start the hydraulic cylinder 21 to drive the support disk 22 to move upward. During the upward movement of the support disk 22, it can disengage from the support column 23. As the support disk 22 continues to move, the support ring 24 enters the support disk 22. Then the support disk 22 pushes the fine filter screen 15 to move upward. At this time, the support disk 22 is in contact with the fine filter screen 15 to prevent the leakage of the liquid medicine and the fine medicinal residues. During the upward movement of the fine filter screen 15, it will abut against the third clamping block 34, and then push the third clamping block 34 and cause the support tube 16 to move upward. As the support tube 16 moves upward, under the action of the spring pin 32 and the card slot 33, the support tube 16 can be connected to the fine filter screen for pressure filtration 14, thereby restricting the upward movement of the support tube 16. When the support disk 22 continues to push the fine filter screen 15, the fine filter screen 15 will cross over the third clamping block 34. Then, under the action of the fine filter screen 15, the coarse filter screen 17, and the fine filter screen for pressure filtration 14, the medicinal residues are squeezed, enabling the liquid medicine to pass through the fine filter screen for pressure filtration 14 and overflow from the overflow port 141. The overflowing liquid medicine enters the liquid outlet channel 132 and then flows out from the liquid outlet 131.

[0035] Moreover, the fine filter screen for pressure filtration 14 is connected to the support rod tube. The coarse filter screen 17 and the fine filter screen 15 are both located inside the support tube 16. When the fine filter screen for pressure filtration 14 is taken out, the coarse medicinal residues between the fine filter screen for pressure filtration 14 and the coarse filter screen 17 and the fine medicinal residues between the coarse filter screen 17 and the fine filter screen 15 can be taken out, which is beneficial for the discharge of the medicinal residues.

[0036] The implementation principle of an herbal Chinese medicine oral liquid preparation device according to an embodiment of the present invention is as follows: First, pour the medicinal residue raw material into the feed pipe 12. The medicinal residue raw material passes through the coarse filter screen 17 and the fine filter screen 15 in sequence, and the coarse medicinal residue remains on the coarse filter screen 17, and the fine medicinal residue remains on the fine filter screen 15. The filtered medicinal liquid flows from the liquid outlet 131 into the support cylinder 11, and then the medicinal liquid flows out from the liquid outlet pipe 111 and is collected.

[0037] Start the hydraulic cylinder 21 to drive the fine filter screen 15 to move upward. The upward movement of the fine filter screen 15 can squeeze the fine medicinal residue. Then, when the fine medicinal residue pushes the coarse filter screen 17 upward, the coarse filter screen 17 moves upward to squeeze the coarse medicinal residue. Under the support of the pressure filtration fine mesh 14, the medicinal liquid in the coarse medicinal residue and the fine medicinal residue passes through the pressure filtration fine mesh 14. Then, the medicinal liquid flows out from the overflow port 141 and flows through the liquid outlet channel 132 to the liquid outlet 131.

[0038] During the pressure filtration of the medicinal residue, the support pipe 16 can be connected to the pressure filtration fine mesh 14. The coarse filter screen 17 is located inside the support pipe 16, and the fine filter screen 15 can enter the support pipe 16. When the pressure filtration fine mesh 14 is taken out, the coarse filter screen 17 and the fine filter screen 15 can be taken out together, which is beneficial to the discharge of the medicinal residue.

[0039] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0040] The above is the preferred implementation mode of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A herbal Chinese medicine oral liquid preparation device, comprising a frame (1), a support cylinder (11) being fixedly connected to the top of the frame (1), characterized in that: The top of the support cylinder (11) is fixedly connected to a feed pipe (12), the interior of the support cylinder (11) is fixedly connected to a filter cylinder (13), and the filter cylinder (13) is in communication with the feed pipe (12); The filter cartridge (13) is provided with a filter press fine mesh (14) and a fine filter mesh (15), the fine filter mesh (15) being located below the filter press fine mesh (14), a support tube (16) being slidably connected to the middle of the filter cartridge (13), a coarse filter mesh (17) being provided in the support tube (16), the coarse filter mesh (17) being located between the filter press fine mesh (14) and the fine filter mesh (15), a liquid outlet (131) being provided on the side wall of the filter cartridge (13), an overflow port (141) being provided on the side wall of the filter press fine mesh (14), and a liquid outlet channel (132) being provided in communication with the liquid outlet (131) being provided in the filter cartridge (13); The filter cartridge (13) is provided with a driving mechanism (2) for driving the fine filter screen (15) to move upwards, and when the fine filter screen (15) moves upwards, it can drive the support tube (16) to move upwards.

2. The herbal Chinese medicine oral liquid preparation device according to claim 1, characterized in that: A first clamping block (3) and a second clamping block (31) are slidably connected transversely to the inner wall of the support tube (16); the coarse filter screen (17) is arranged between the first clamping block (3) and the second clamping block (31); the coarse filter screen (17) can pass over the first clamping block (3); a spring pin (32) is arranged on the side wall of the filter press fine screen (14); a clamping groove (33) adapted to the spring pin (32) is provided on the inner wall of the support tube (16); a third clamping block (34) is slidably connected transversely to the bottom of the inner wall of the support tube (16); when the fine filter screen (15) moves upward, the third clamping block (34) can be pushed to move the support tube (16) upward; after the support tube (16) is connected to the filter press fine screen (14), the fine filter screen (15) can pass over the third clamping block (34).

3. The herbal Chinese medicine oral liquid preparation device according to claim 2, characterized in that: The coarse filter (17) comprises a support frame (171), the support frame (171) being arranged between the first clamping block (3) and the second clamping block (31), a sliding plate (172) being vertically slidably connected above the support frame (171), a plurality of connecting tubes (173) and extrusion rods (174) being fixedly connected to the top of the support frame (171), the connecting tubes (173) and the extrusion rods (174) being slidably connected to the sliding plate (172), and a first return spring (175) being sleeved on the connecting tubes (173) and the extrusion rods (174).

4. The herbal Chinese medicine oral liquid preparation device according to claim 3, characterized in that: The coarse filter (17) can pass over the first clamping block (3) when moving upward or downward, and after the fine filter (15) passes over the second clamping block (31), the second clamping block (31) can support the fine filter (15), and the second clamping block (31) and the third clamping block (34) have the same shape.

5. The herbal Chinese medicine oral liquid preparation device according to claim 1, characterized in that: The driving mechanism (2) comprises a hydraulic cylinder (21) fixedly mounted on the bottom of the filter cartridge (13); the driving shaft of the hydraulic cylinder (21) is fixedly connected to a support plate (22); the filter cartridge (13) is fixedly connected to a support column (23); the support plate (22) is vertically slidably connected to a support ring (24); the support ring (24) is capable of supporting the fine filter screen (15); and the support column (23) is capable of supporting the support ring (24).

6. The herbal Chinese medicine oral liquid preparation device according to claim 2, characterized in that: A second return spring is fixedly connected between the first clamping block (3), the second clamping block (31), the third clamping block (34) and the inner wall of the support tube (16).

7. The herbal Chinese medicine oral liquid preparation device according to claim 1, characterized in that: The feeding pipe (12) is configured to be funnel-shaped.

8. The herbal Chinese medicine oral liquid preparation device according to claim 1, characterized in that: The inner wall of the filter cartridge (13) is provided with an L-shaped sliding groove (4), and the side wall of the filter press fine mesh (14) is fixedly connected with a sliding block (41) capable of being in the L-shaped sliding groove (4).

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