Traditional Chinese medicine decoction filtering device
By designing a traditional Chinese medicine decoction filtration device with threaded connection and hydraulic rod to push the pressure plate, dual filtration and convenient filter replacement are achieved, solving the problem of impurities clogging the traditional Chinese medicine decoction and improving filtration efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING JIANGNING XINYITANG TRADITIONAL CHINESE MEDICINE CLINIC CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-08-04
AI Technical Summary
In existing technologies, the components of impurities in the decoction of traditional Chinese medicine are complex, and the fixed pore size of the filter membrane leads to blockage by large impurities, affecting filtration efficiency and the quality of the decoction.
A filtration device comprising a filter tank, an inner tank, a bottom tank, a filter plate, and a filter screen is designed. It adopts a threaded connection structure and a hydraulic rod to push the pressure plate, achieving dual filtration and convenient filter screen replacement. Combined with an elastic structure, it reduces equipment damage.
It improves the purity of the herbal medicine solution, reduces the difficulty and cost of equipment maintenance, ensures filtration efficiency and product quality, and extends the service life of the filter plates.
Smart Images

Figure CN224585463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traditional Chinese medicine water filtration technology, specifically a traditional Chinese medicine decoction filtration device. Background Technology Filtration of herbal decoctions is a crucial step in the preparation of traditional Chinese medicine (TCM) preparations. Its purpose is to remove impurities, improve the quality of the decoction, and ensure the stability and efficacy of subsequent preparations. Before filtration, the herbs are weighed according to the prescription, soaked in water for a certain period, and then boiled over high heat followed by simmering over low heat to obtain the decoction. At this stage, the decoction contains insoluble impurities such as dregs and sediment. Common filtration methods include natural sedimentation filtration, pressure filtration, and depressurization filtration. Natural sedimentation filtration relies on gravity to settle impurities and is suitable for situations with many impurities and large volumes of decoction. Pressure filtration can accelerate the filtration process and improve efficiency, while depressurization filtration can prevent oxidation and deterioration of the decoction during filtration. Commonly used filter materials include filter paper, filter cloth, and filter membranes. Selecting appropriate equipment based on the properties of the decoction and the size of the impurities is essential. Proper filtration can effectively remove impurities from the herbal decoction, making it clear and transparent. This provides high-quality raw materials for subsequent concentration and drying processes, ensuring the quality and efficacy of the TCM preparation.
[0002] In existing technologies, the impurities in the decoction of traditional Chinese medicine are complex, including particles of different sizes, such as larger dregs, fine sand, and some colloidal substances. Relying solely on filter membranes, due to the fixed pore size of the filter membrane, can only intercept impurities larger than the pore size. However, when larger impurities clog the filter, it causes problems with the material not being discharged, which in turn affects the quality of the filtered decoction. Therefore, we need a filter device for the decoction of traditional Chinese medicine. Utility Model Content
[0003] To address the aforementioned shortcomings of existing technologies, this utility model provides a traditional Chinese medicine decoction filtration device. To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows: The system includes a filter tank, with a support leg fixedly connected to its bottom, a feed pipe fixedly connected to its outer wall, a discharge pipe fixedly connected to its bottom, and a mounting frame fixedly connected to its top. A filter press assembly is mounted on the mounting frame, and the filter assembly is located inside the filter tank. The filter assembly includes an inner tank fixed inside the filter tank, with internal threads on its inner wall and a bottom tank threadedly connected to its bottom. The outer wall of the bottom tank has external threads, and a filter plate is fixedly connected to its interior. A discharge pipe is fixedly connected to the bottom of the bottom tank, with an installation groove at its bottom. A baffle is fixedly connected to the interior of the installation groove, and a connecting spring is fixedly connected to the bottom of the installation groove. A pad is fixedly connected to one end of the connecting spring, and a hook is attached to one side of the pad, with a filter screen fixedly connected to one side of the hook.
[0004] Furthermore, the inner tank is connected to the outer tank of the bottom tank by an internal thread, and the internal thread and the outer thread are connected to each other.
[0005] Furthermore, the feeding tube forms an elastic structure with a connecting spring and a pad, with one end of the connecting spring fixed to one side of the pad and the other end of the connecting spring fixed to one side of the feeding tube.
[0006] Furthermore, the filter screen is connected to the baffle via a hook, and one end of the hook is positioned by being engaged with the bottom of the baffle.
[0007] Furthermore, the filter press assembly includes a hydraulic rod, which is fixed to the top of the frame. A push rod is fixedly connected to the output end of the hydraulic rod, and a mounting plate is fixedly connected to the bottom of the push rod. A support sleeve is slidably connected to the bottom of the mounting plate, and a pressure plate is fixedly connected to the bottom of the support sleeve. A guide rod is fixedly connected inside the support sleeve, and a guide sleeve is slidably connected to the outer wall of the guide rod. A support spring is sleeved on the outer wall of the guide rod, and a movable rod is movably connected to the top of the guide sleeve.
[0008] Furthermore, the hydraulic rod forms a lifting structure with the pressure plate via a push rod, and the top of the push rod is connected to the output end of the hydraulic rod, while the bottom of the push rod is fixed to the top of the pressure plate.
[0009] Furthermore, the guide rod forms a buffer structure with the guide sleeve and the support spring, and the outer diameter of the guide rod is fitted to the inner diameter of the guide sleeve, and the support spring is disposed between the guide sleeve and the support sleeve.
[0010] The beneficial effects of this utility model are as follows: (1) After initial filtration by the filter plate, the herbal liquid flows into the feed pipe and then undergoes secondary filtration by the filter screen. This double filtration effectively improves the purity of the herbal liquid, ensuring superior product quality. Rotating the filter screen allows the hook to be removed from the baffle and pad, and the connecting spring to disengage, making it easy to disassemble and replace the filter screen. The operation is simple and convenient. At the same time, rotating the bottom tank allows it to be unscrewed from the inner tank, enabling quick removal of the filter cake from the filter plate for easy cleaning. This design reduces the difficulty and cost of equipment maintenance, improves work efficiency, and fully meets people's needs for convenience in daily use and maintenance.
[0011] (2) The feed pipe can accurately deliver the Chinese medicine water to the inner tank. The filter plate can efficiently intercept the dregs and larger particles of impurities, and initially purify the Chinese medicine water. The hydraulic rod pushes the push rod, which in turn drives the pressure plate to squeeze and filter the impurities accumulated on the filter plate. When the pressure plate squeezes the impurities, the support spring supports the mounting plate and drives the push rod to move, pushing the guide sleeve to squeeze the spring along the guide rod, which plays a buffering role, effectively reducing the impact and damage to the filter plate, extending the service life of the filter plate, reducing equipment maintenance costs, and ensuring long-term stable operation of the equipment. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a schematic diagram of the filter tank and filter assembly of this utility model; Figure 3 This is a schematic diagram of the filter press assembly structure of this utility model; Figure 4 This is a schematic diagram of the feeding pipe and filter screen structure of this utility model; Figure 5 This is a schematic diagram of the inner tank and internal thread structure of this utility model; Figure 6 This is a schematic diagram of the bottom tank and filter plate structure of this utility model; Figure 7 This utility model Figure 6 Enlarged structural diagram at point A in the middle.
[0013] In the diagram: 1. Filter tank; 2. Support leg frame; 3. Feed pipe; 4. Discharge pipe; 5. Fixing frame; 6. Filter press assembly; 601. Hydraulic rod; 602. Push rod; 603. Mounting plate; 604. Support sleeve; 605. Pressure plate; 606. Guide rod; 607. Guide sleeve; 608. Support spring; 609. Movable rod; 7. Filter assembly; 701. Inner tank; 702. Internal thread; 703. Bottom tank; 704. External thread; 705. Filter plate; 706. Discharge pipe; 707. Mounting groove; 708. Baffle; 709. Connecting spring; 710. Pad; 711. Hook; 712. Filter screen. Detailed Implementation
[0014] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.
[0015] This utility model embodiment provides a traditional Chinese medicine decoction filtration device, such as... Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the system includes a filter tank 1, a support leg 2 fixedly connected to the bottom of the filter tank 1, a feed pipe 3 fixedly connected to the outer wall of the filter tank 1, a discharge pipe 4 fixedly connected to the bottom of the filter tank 1, a fixing frame 5 fixedly connected to the top of the filter tank 1, a filter press assembly 6 mounted on the fixing frame 5, and a filter assembly 7 installed inside the filter tank 1. The filter assembly 7 includes an inner tank 701, which is fixed inside the filter tank 1. The inner wall of the inner tank 701 has an internal thread 702, and the bottom of the inner tank 701 is threadedly connected to a bottom tank 703. The outer wall of the bottom tank 703 has an external thread 704, a filter plate 705 fixedly connected inside the bottom tank 703, a discharge pipe 706 fixedly connected to the bottom of the bottom tank 703, an installation groove 707 at the bottom of the discharge pipe 706, a baffle 708 fixedly connected inside the installation groove 707, and a connecting spring 709 fixedly connected to the inner bottom of the installation groove 707. One end of the spring 709 is fixedly connected to a pad 710. A hook 711 is attached to one side of the pad 710, and a filter screen 712 is fixedly connected to one side of the hook 711. After being filtered by the filter plate 705, the medicinal liquid can flow into the feed pipe 706 and then flow out through the feed pipe 706 after secondary filtration by the filter screen 712. In addition, by removing the bolts at the bottom of the filter tank 1, the filter screen 712 can be rotated directly, allowing the hook 711 on the filter screen 712 to be removed from the baffle 708 and the pad 710, and the connecting spring 709 to disengage from the hook 711, making it easy to disassemble and replace the filter screen 712. Furthermore, by rotating the bottom tank 703, the bottom tank 703 can be rotated out from the inner thread 702 of the inner tank 701 by the external thread 704, thereby allowing the accumulated filter cake on the filter plate 705 to be removed, meeting people's daily use needs.
[0016] Further such as Figure 5 and Figure 6 As shown, the inner tank 701 forms a threaded connection structure with the outer thread 704 of the bottom tank 703 through the inner thread 702, and the inner thread 702 and the outer thread 704 cooperate with each other to strengthen the connection effect between the inner tank 701 and the bottom tank 703. This allows the bottom tank 703 to be fastened and installed by relying on the outer thread 704 to be fastened to the inner wall of the inner thread 702 inside the inner tank 701.
[0017] Further such as Figure 7As shown, the feeding tube 706 forms an elastic structure with the pad 710 via the connecting spring 709. One end of the connecting spring 709 is fixed to one side of the pad 710, and the other end of the connecting spring 709 is fixed to one side of the feeding tube 706. This strengthens the connection between the feeding tube 706 and the connecting spring 709, allowing the feeding tube 706 to support the pad 710 with the support of the connecting spring 709.
[0018] Further such as Figure 4 and Figure 7 As shown, the filter screen 712 forms a locking structure with the baffle 708 through the hook 711, and one end of the hook 711 is locked at the bottom of the baffle 708 for positioning, which enhances the connection effect between the filter screen 712 and the hook 711, so that the filter screen 712 can be positioned and installed in the baffle 708 by screwing the hook 711 in.
[0019] In a further preferred embodiment of this utility model, such as Figure 1 and Figure 3 As shown, the filter press assembly 6 includes a hydraulic rod 601, which is fixed to the top of the mounting frame 5. A push rod 602 is fixedly connected to the output end of the hydraulic rod 601. A mounting plate 603 is fixedly connected to the bottom of the push rod 602. A support sleeve 604 is slidably connected to the bottom of the mounting plate 603. A pressure plate 605 is fixedly connected to the bottom of the support sleeve 604. A guide rod 606 is fixedly connected inside the support sleeve 604. A guide sleeve 607 is slidably connected to the outer wall of the guide rod 606. A support spring 608 is sleeved on the outer wall of the guide rod 606. A movable rod 609 is movably connected to the top of the guide sleeve 607. Traditional Chinese medicine solution can be injected through the feed pipe 3, allowing the solution to be transported into the inner tank 701 and removing any dregs from the solution. Larger particles are intercepted by the filter plate 705. Simultaneously, the hydraulic rod 601 is activated, which, supported by the fixed frame 5, pushes the push rod 602 to move. The push rod 602 then moves the support sleeve 604, which in turn moves the bottom pressure plate 605. This pressure plate 605 squeezes and filters the impurities accumulated on the filter plate 705. Furthermore, supported by the support spring 608, the mounting plate 603 moves the push rod 602, pushing the guide sleeve 607 along the outer wall of the guide rod 606 to squeeze the support spring 608. This reduces the risk of damage to the filter plate 705 caused by filtration and compression, thus meeting the needs of daily use.
[0020] Further such as Figure 3As shown, the hydraulic rod 601 forms a lifting structure with the pressure plate 605 via the push rod 602. The top of the push rod 602 is connected to the output end of the hydraulic rod 601, and the bottom of the push rod 602 is fixed to the top of the pressure plate 605. This strengthens the connection between the hydraulic rod 601 and the push rod 602, allowing the hydraulic rod 601 to drive the push rod 602 to move, and the push rod 602 to push the pressure plate 605 to move.
[0021] Further such as Figure 3 As shown, the guide rod 606 forms a buffer structure with the guide sleeve 607 and the support spring 608. The outer diameter of the guide rod 606 is fitted to the inner diameter of the guide sleeve 607. The support spring 608 is located between the guide sleeve 607 and the support sleeve 604, which strengthens the connection between the guide rod 606 and the guide sleeve 607. This allows the guide sleeve 607 to slide along the outer wall of the guide rod 606 under the support of the support spring 608.
[0022] Working Principle: During use, the herbal medicine solution can be injected through the feed pipe 3, allowing it to be transported into the inner tank 701. The dregs and larger particles in the herbal medicine solution are intercepted by the filter plate 705. Simultaneously, the hydraulic rod 601 is activated, which, supported by the fixed frame 5, pushes the push rod 602 to move. The push rod 602 then moves the support sleeve 604, which in turn moves the bottom pressure plate 605. The pressure plate 605 then squeezes and filters the impurities accumulated on the filter plate 705. Supported by the support spring 608, the mounting plate 603 moves the push rod 602, pushing the guide sleeve 607 along the outer wall of the guide rod 606 to press against the support spring 608, thereby reducing... The filter plate 705 is designed to minimize damage caused by filtration and compression, thus meeting the needs of daily use. After filtration by the filter plate 705, the herbal medicine solution flows into the discharge pipe 706 and, after secondary filtration by the filter screen 712, flows downwards through the discharge pipe 706. Furthermore, by removing the bolts at the bottom of the filter tank 1, the filter screen 712 can be rotated directly, allowing the hook 711 on the filter screen 712 to be removed from the baffle 708 and pad 710, and the connecting spring 709 to disengage from the hook 711, facilitating the disassembly and replacement of the filter screen 712. Additionally, by rotating the bottom tank 703, the bottom tank 703 can be rotated out from the inner thread 702 of the inner tank 701 via the external thread 704, allowing the accumulated filter cake on the filter plate 705 to be removed, thus meeting the needs of daily use.
Claims
1. A traditional Chinese medicine decoction filtering device, comprising a filter tank (1), characterized in that: The bottom of the filter tank (1) is fixedly connected to a support leg frame (2), the outer wall of the filter tank (1) is fixedly connected to a feed pipe (3), the bottom of the filter tank (1) is fixedly connected to a discharge pipe (4), the top of the filter tank (1) is fixedly connected to a fixing frame (5), a filter press assembly (6) is provided on the fixing frame (5), and a filter assembly (7) is provided inside the filter tank (1). The filter assembly (7) includes an inner tank (701), which is fixed inside the filter tank (1). The inner wall of the inner tank (701) is provided with an internal thread (702). The bottom of the inner tank (701) is threadedly connected to a bottom tank (703). The outer wall of the bottom tank (703) is provided with an external thread (704). A filter plate (705) is fixedly connected inside the bottom tank (703). A feed pipe (705) is fixedly connected to the bottom of the bottom tank (703). 06), the bottom of the feed pipe (706) is provided with an installation groove (707), a baffle (708) is fixedly connected inside the installation groove (707), a connecting spring (709) is fixedly connected to the bottom of the installation groove (707), a pad (710) is fixedly connected to one end of the connecting spring (709), a hook (711) is attached to one side of the pad (710), and a filter screen (712) is fixedly connected to one side of the hook (711).
2. The Chinese medicine decoction filtering device according to claim 1, characterized in that: The inner tank (701) forms a threaded connection structure with the outer thread (704) of the bottom tank (703) through the inner thread (702), and the inner thread (702) and the outer thread (704) are connected to each other.
3. The device according to claim 1, characterized in that: The feed tube (706) forms an elastic structure with the pad (710) via a connecting spring (709), and one end of the connecting spring (709) is fixed to one side of the pad (710), and the other end of the connecting spring (709) is fixed to one side of the feed tube (706).
4. The traditional Chinese medicine decoction filtering device according to claim 1, characterized in that: The filter screen (712) is connected to the baffle (708) by a hook (711), and one end of the hook (711) is positioned by being locked to the bottom of the baffle (708).
5. The traditional Chinese medicine decoction filtering device according to claim 1, characterized in that: The filter press assembly (6) includes a hydraulic rod (601), which is fixed to the top of the frame (5). The output end of the hydraulic rod (601) is fixedly connected to a push rod (602). The bottom of the push rod (602) is fixedly connected to a mounting plate (603). The bottom of the mounting plate (603) is slidably connected to a support sleeve (604). The bottom of the support sleeve (604) is fixedly connected to a pressure plate (605). The inside of the support sleeve (604) is fixedly connected to a guide rod (606). The outer wall of the guide rod (606) is slidably connected to a guide sleeve (607). The outer wall of the guide rod (606) is fitted with a support spring (608). The top of the guide sleeve (607) is movably connected to a movable rod (609).
6. The traditional Chinese medicine decoction filtering device according to claim 5, characterized in that: The hydraulic rod (601) forms a lifting structure with the pressure plate (605) via the push rod (602), and the top of the push rod (602) is connected to the output end of the hydraulic rod (601), and the bottom of the push rod (602) is fixed to the top of the pressure plate (605).
7. The device according to claim 5, characterized in that: The guide rod (606) forms a buffer structure with the guide sleeve (607) and the support spring (608), and the outer diameter of the guide rod (606) is fitted with the inner diameter of the guide sleeve (607), and the support spring (608) is disposed between the guide sleeve (607) and the support sleeve (604).