Oral liquid ultrafiltration apparatus

Abstract

The utility model discloses an oral liquid ultrafiltration equipment, including mount, ultrafiltration body, liquid inlet pipe, liquid outlet pipe, support structure and primary filter structure, be provided with ultrafiltration body on the mount, the upper portion fixed mounting of ultrafiltration body has liquid inlet pipe, this oral liquid ultrafiltration equipment through the unique bevel gear - screw rod nut drive mechanism, can conveniently, accurately adjust the support height and strength of liquid outlet pipe. This structure has the self -locking characteristic, and after supporting in place, will not back off because of system vibration or pipeline pressure, has guaranteed the stability and security of ultrafiltration system in the running process, prevents the connection point loosening or leakage because of pipeline stress, the innovative modularization primary filter structure adopts double -deck filter plate design, can effectively intercept the large particle impurity in the medicine liquid, has lightened the filtration load of precision ultrafiltration membrane in rear end ultrafiltration body, has delayed the pollution and the jam speed of ultrafiltration membrane significantly, has prolonged its life, has reduced the operation maintenance cost.

Description

Technical Field

[0001] This utility model relates to the technical field of oral liquid ultrafiltration equipment, specifically an oral liquid ultrafiltration device. Background Technology

[0002] An oral liquid ultrafiltration device is a highly efficient, energy-saving, and environmentally friendly precision filtration system based on membrane separation technology. It is specifically designed for clarification, impurity removal, purification, and concentration in the production process of oral liquid formulations, aiming to effectively improve the clarity, stability, purity of active ingredients, and safety of oral liquids. It is one of the core key pieces of equipment in modern Chinese medicine extraction and oral liquid production, and represents a paradigm of combining modern pharmaceutical technology with traditional formulation. Through its highly efficient molecular-level separation capabilities, it perfectly solves the long-standing core problems of clarity, stability, and safety in oral liquid production. It is an indispensable key piece of equipment for improving the quality of oral liquid products, enhancing market competitiveness, and promoting the modernization of traditional Chinese medicine. However, existing oral liquid ultrafiltration devices still have certain shortcomings. While traditional ultrafiltration equipment for oral liquids can be used effectively, the filtered liquid is discharged through an outlet pipe. If the pipe is long or the connected container is heavy, the outlet pipe will be under constant stress. This stress can easily lead to seal failure at the connection between the outlet pipe and the ultrafiltration unit, causing leakage, or even breakage of the interface. Oral liquids often contain impurities such as drug residue, fibers, and large colloids. If these impurities are directly introduced into the precision ultrafiltration membrane, they will quickly clog the membrane pores, causing a sharp drop in filtration efficiency. This necessitates frequent shutdowns for chemical cleaning or physical backwashing, severely shortening the lifespan of the expensive ultrafiltration membrane and frequently causing problems for users. Summary of the Invention

[0003] The purpose of this invention is to provide an oral liquid ultrafiltration device to solve the problem mentioned in the background art: in traditional devices, the ultrafiltered liquid is discharged through an outlet pipe. If the pipe is long or the connected container is heavy, the outlet pipe will be suspended under stress for a long time. This stress can easily lead to seal failure at the connection between the outlet pipe and the ultrafiltration body, resulting in leakage, or even breakage of the interface. Oral liquid raw materials usually contain impurities such as drug residue, fibers, and large colloids. If they directly enter the precision ultrafiltration membrane, they will quickly cause membrane pore blockage, resulting in a sharp drop in filtration efficiency. Frequent shutdowns are required for chemical cleaning or physical backwashing, which seriously shortens the service life of expensive ultrafiltration membranes and is a problem that often troubles users.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an oral liquid ultrafiltration device, comprising a fixed frame, an ultrafiltration body, an inlet pipe, an outlet pipe, a support structure, and a primary filtration structure. The fixed frame is provided with the ultrafiltration body, the upper part of the ultrafiltration body is fixedly installed with the inlet pipe, the lower part of the ultrafiltration body is fixedly installed with the outlet pipe, and a support structure is provided below the outlet pipe. The support structure includes a shell, a transmission rod, a first helical gear, a second helical gear, a lead screw, a threaded sleeve, a sliding groove, a support block, and a limiting block. The inlet pipe is equipped with a primary filter structure, which includes a connecting pipe, a clamping block, a docking flange, fixing bolts, a filter pipe, a first filter plate, and a second filter plate.

[0005] As a preferred embodiment of this utility model, a housing is fixedly installed on the inner top surface of the fixing frame, a transmission rod is connected to the housing by a bearing, a turntable is fixedly installed on the transmission rod, and a first helical gear is fixedly installed on the other side of the transmission rod.

[0006] As a preferred embodiment of this utility model, a second helical gear meshes with the first helical gear, a lead screw is fixedly installed on the second helical gear, a threaded sleeve is threadedly connected to the lead screw, and two sliding grooves are provided on the threaded sleeve.

[0007] As a preferred embodiment of this utility model, a support block is fixedly installed on the top surface of the threaded sleeve, and the upper surface of the support block is in contact with the liquid outlet pipe. A limit block is fixedly installed on the housing, and the limit block and the sliding groove are slidably connected.

[0008] As a preferred embodiment of this utility model, a connecting pipe is fixedly installed at the left end of the inlet pipe, three sets of clamping blocks are fixedly installed on the connecting pipe, a docking flange is provided on the left side of the connecting pipe, and a groove for cooperating with the clamping blocks is opened on the docking flange. The docking flange, clamping blocks and connecting pipe are fixed by fixing bolts.

[0009] As a preferred embodiment of this utility model, a filter tube is fixedly installed on the left wall of the docking flange, and a first filter plate and a second filter plate are slidably connected on the filter tube, and the first filter plate and the second filter plate are connected to the filter tube through a sealing ring.

[0010] Compared with existing technologies, the beneficial effects of this utility model are as follows: This oral liquid ultrafiltration device, through a unique helical gear-screw nut transmission mechanism, allows for convenient and precise adjustment of the support height and force on the outlet pipe. This structure has a self-locking characteristic, preventing it from retracting due to system vibration or pipeline pressure once the support is in place, ensuring the stability and safety of the ultrafiltration system during operation, preventing loosening or leakage at connection points caused by pipeline stress. The innovative modular pre-filtration structure adopts a double-layer filter plate design, which can effectively intercept large particulate impurities in the liquid, reducing the filtration load on the precision ultrafiltration membrane in the downstream ultrafiltration unit, significantly slowing down the fouling and clogging rate of the ultrafiltration membrane, extending its service life, and reducing operating and maintenance costs. Attached Figure Description

[0011] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the main sectional view of the support structure of this utility model; Figure 3 This is a schematic diagram of the main view of the primary filter structure of this utility model.

[0012] In the diagram: 1. Fixing frame; 2. Ultrafiltration body; 3. Inlet pipe; 4. Outlet pipe; 5. Support structure; 501. Housing; 502. Transmission rod; 503. First helical gear; 504. Second helical gear; 505. Lead screw; 506. Threaded sleeve; 507. Slide groove; 508. Support block; 509. Limiting block; 6. Primary filtration structure; 601. Connecting pipe; 602. Clamping block; 603. Connecting flange; 604. Fixing bolt; 605. Filter tube; 606. First filter plate; 607. Second filter plate. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-3This utility model provides a technical solution: an oral liquid ultrafiltration device, including a fixed frame 1, an ultrafiltration body 2, an inlet pipe 3, an outlet pipe 4, a support structure 5, and a primary filtration structure 6. The ultrafiltration body 2 is mounted on the fixed frame 1. The inlet pipe 3 is fixedly installed on the upper part of the ultrafiltration body 2, and the outlet pipe 4 is fixedly installed on the lower part of the ultrafiltration body 2. The support structure 5 is located below the outlet pipe 4. The support structure 5 includes a housing 501, a transmission rod 502, a first helical gear 503, a second helical gear 504, a lead screw 505, a threaded sleeve 506, a sliding groove 507, a support block 508, and a limiting block 509. A primary filter structure 6 is installed on the liquid inlet pipe 3. The primary filter structure 6 includes a connecting pipe 601, a clamping block 602, a docking flange 603, a fixing bolt 604, a filter pipe 605, a first filter plate 606, and a second filter plate 607.

[0015] A housing 501 is fixedly installed on the inner top surface of the fixed frame 1. A transmission rod 502 is connected to the housing 501 by a bearing. A turntable is fixedly installed on the transmission rod 502. A first helical gear 503 is fixedly installed on the other side of the transmission rod 502.

[0016] A second helical gear 504 meshes with the first helical gear 503. A lead screw 505 is fixedly installed on the second helical gear 504. A threaded sleeve 506 is threadedly connected to the lead screw 505. Two sliding grooves 507 are provided on the threaded sleeve 506.

[0017] A support block 508 is fixedly installed on the top surface of the threaded sleeve 506, and the upper surface of the support block 508 is in contact with the liquid outlet pipe 4. A limit block 509 is fixedly installed on the housing 501, and the limit block 509 is slidably connected to the slide groove 507.

[0018] A connecting pipe 601 is fixedly installed at the left end of the inlet pipe 3. Three sets of clamping blocks 602 are fixedly installed on the connecting pipe 601. A docking flange 603 is provided on the left side of the connecting pipe 601. The docking flange 603 has a groove for cooperating with the clamping blocks 602. The docking flange 603, the clamping blocks 602 and the connecting pipe 601 are fixed by fixing bolts 604.

[0019] A filter pipe 605 is fixedly installed on the left wall of the mating flange 603. A first filter plate 606 and a second filter plate 607 are slidably connected to the filter pipe 605, and the first filter plate 606 and the second filter plate 607 are connected to the filter pipe 605 through a sealing ring.

[0020] Working principle: When using an oral liquid ultrafiltration device, if it is necessary to adjust the height or support status of the outlet pipe 4, the operator manually rotates the turntable on the transmission rod 502. The transmission rod 502 drives the first helical gear 503 at its end to rotate. The first helical gear 503 meshes with the second helical gear 504, changing the direction of rotation by 90 degrees and transmitting it to the lead screw 505. The lead screw 505 rotates, driving the threaded sleeve 506, which is threaded to it, to move up and down along the axis of the lead screw 505. The sliding groove 507 on the threaded sleeve 506 forms a sliding pair with the limiting block 509 fixed on the housing 501, effectively preventing the threaded sleeve 506 from rotating with the lead screw 505, ensuring that it can only perform stable linear motion. When the threaded sleeve 506 moves upward, it lifts the outlet pipe 4 through the support block 508 at its top, providing stable support for it; rotating the turntable in the opposite direction can lower the support block 508. The oral liquid concentrate first enters the primary filtration structure 6. The liquid flows in through the left-side filter tube 605, and sequentially passes through the second filter plate 607 and the first filter plate 606, which are slidably inserted into the filter tube 605. The two filter plates can use filter screens or filter media of different precision to pre-treat larger particulate impurities and suspended solids in the liquid. After primary filtration, the liquid passes through the connecting flange 603 and connecting pipe 601, and enters the ultrafiltration body 2 through the inlet pipe 3 for fine filtration. The primary filtration structure 6 connects to the groove on the connecting flange 603 via a locking block 602 and is secured with fixing bolts 604, enabling quick assembly and disassembly. This facilitates periodic cleaning or replacement of the clogged first filter plate 606 and second filter plate 607, thus completing a series of operations. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An oral liquid ultrafiltration device, comprising a fixing frame (1), an ultrafiltration body (2), an inlet pipe (3), an outlet pipe (4), a supporting structure (5) and a primary filtration structure (6), the fixing frame (1) is provided with the ultrafiltration body (2), the upper part of the ultrafiltration body (2) is fixedly installed with the inlet pipe (3), the lower part of the ultrafiltration body (2) is fixedly installed with the outlet pipe (4), and the lower part of the outlet pipe (4) is provided with the supporting structure (5); characterized in that: The support structure (5) includes a housing (501), a transmission rod (502), a first helical gear (503), a second helical gear (504), a lead screw (505), a threaded sleeve (506), a slide groove (507), a support block (508), and a limiting block (509). ​ The liquid inlet pipe (3) is equipped with a primary filter structure (6), which includes a connecting pipe (601), a clamping block (602), a docking flange (603), a fixing bolt (604), a filter pipe (605), a first filter plate (606), and a second filter plate (607).

2. The oral liquid ultrafiltration device according to claim 1, characterized in that, A housing (501) is fixedly installed on the inner top surface of the fixed frame (1). A transmission rod (502) is connected to the housing (501) by a bearing. A turntable is fixedly installed on the transmission rod (502). A first helical gear (503) is fixedly installed on the other side of the transmission rod (502).

3. The oral liquid ultrafiltration device according to claim 2, characterized in that, The first helical gear (503) is meshed with a second helical gear (504), and a lead screw (505) is fixedly installed on the second helical gear (504). A threaded sleeve (506) is threadedly connected to the lead screw (505), and two sliding grooves (507) are provided on the threaded sleeve (506).

4. The oral liquid ultrafiltration device according to claim 3, characterized in that, A support block (508) is fixedly installed on the top surface of the threaded sleeve (506), and the upper surface of the support block (508) is in contact with the liquid outlet pipe (4). A limit block (509) is fixedly installed on the housing (501), and the limit block (509) is slidably connected to the slide groove (507).

5. The oral liquid ultrafiltration device according to claim 4, characterized in that, A connecting pipe (601) is fixedly installed at the left end of the inlet pipe (3). Three sets of clamping blocks (602) are fixedly installed on the connecting pipe (601). A docking flange (603) is provided on the left side of the connecting pipe (601). A groove is provided on the docking flange (603) to cooperate with the clamping blocks (602). The docking flange (603), the clamping blocks (602) and the connecting pipe (601) are fixed by fixing bolts (604).

6. The oral liquid ultrafiltration device according to claim 5, characterized in that, A filter tube (605) is fixedly installed on the left wall of the docking flange (603). A first filter plate (606) and a second filter plate (607) are slidably connected on the filter tube (605), and the first filter plate (606) and the second filter plate (607) are connected to the filter tube (605) through a sealing ring.

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