Multi-stage filter for production
By introducing a flushing and draining mechanism into the multi-stage filter, the problem of decreased filtration efficiency caused by the accumulation of impurities in the filter screen is solved, enabling cleaning and maintenance without disassembly and extending the service life of the filter screen.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG JIJITANG BIOENGINEERING CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-17
AI Technical Summary
In existing technologies, the accumulation of impurities and particles during the use of the interception net leads to a reduction in the flow cross-section, a decrease in filtration efficiency, and cumbersome disassembly and cleaning.
A multi-stage filter with a flushing mechanism and a draining mechanism was designed. The filter uses a forward and reverse motor to drive a threaded rod, which in turn drives a sliding shaft and a nozzle to clean the filter screen. Combined with the drain pipe, impurities are automatically discharged, achieving cleaning without disassembly.
It effectively cleans impurities and particles from the filter screen, extends the maintenance cycle of the filter screen, avoids a decrease in filtration efficiency, and simplifies the maintenance process.
Smart Images

Figure CN224126668U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of multi-stage filtration, specifically a multi-stage filter for production. Background Technology
[0002] Veterinary drug concentrates often contain impurities or particles of varying sizes, so they are typically filtered using multi-stage filtering systems.
[0003] During the filtration process, impurities or particles are intercepted by the filter screen. However, the intercepted impurities and particles remain in the filter box and on the filter screen. As the usage time increases, the flow cross-section of the filter screen gradually decreases, causing the filtration efficiency to slow down. At this point, the filter screen is usually disassembled for cleaning and maintenance, which is quite cumbersome. Utility Model Content
[0004] The purpose of this invention is to provide a multi-stage filter for production in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage filter for production, comprising a filter box with an inlet and an outlet at each end, a mounting plate installed at the top of the filter box, a handle installed at the top of the mounting plate, an intercepting net installed at the bottom of the mounting plate penetrating into the inner cavity of the filter box, the two ends and the bottom of the intercepting net being in contact with the inner wall of the filter box, and a sealing element installed at the position where the intercepting net is in contact with the filter box, a flushing mechanism installed above the filter box penetrating into the inner cavity of the filter box, and a sewage discharge mechanism installed at the bottom of the filter box.
[0006] As a further embodiment of this utility model: the rinsing mechanism includes a fixed frame fixedly installed on the top of the filter box, a forward and reverse motor is installed on the top plate of the fixed frame, and a threaded rod is coaxially fixedly connected to the output shaft end of the forward and reverse motor through a coupling, and the bottom end of the threaded rod is rotatably connected to the top plate of the filter box.
[0007] As a further embodiment of this utility model: the rinsing mechanism includes a mounting bracket threaded to the outer wall of the threaded rod, a sliding shaft that penetrates into the interior of the filter box is fixedly mounted at the bottom end of the mounting bracket, the sliding shaft is slidably connected to the top plate of the filter box, and a sealing ring is installed at the sliding connection between the sliding shaft and the filter box, a connector is installed at the bottom end of the sliding shaft, the side of the connector near the interception net is inclined, and nozzles are equidistantly mounted on the inclined surface of the connector.
[0008] As a further embodiment of this utility model: the sliding shaft located in the same direction has a hollow structure, and the water channel inside the connector is connected to the inner cavity of the hollow sliding shaft. The top opening of the sliding shaft is connected to the water pump through a hose, and the water channel inside the connector is connected to the inside of the nozzle.
[0009] As a further embodiment of this utility model: the sewage discharge mechanism includes a sewage discharge pipe integrally formed at the bottom of the filter box, the bottom end of the sewage discharge pipe is open, a valve plate is axially slidably installed inside the sewage discharge pipe, one end of the valve plate extends through to the outside of the sewage discharge pipe, and a sealing ring is installed at the contact position between the valve plate and the sewage discharge pipe.
[0010] The bottom plate of the filter box has a drain port that is connected to the drain pipe, and the top of the drain port near the interception net has a guide slope.
[0011] As a further embodiment of this utility model: the valve plate is fixedly connected to the outer wall of the sewage pipe at one end outside the sewage pipe by bolts and nuts, the vertical plate of the mounting plate is provided with a connecting groove with an open bottom end, the outer wall of the filter box is equipped with a stud that mates with the connecting groove, and the outer wall of the stud is threaded with a tightening nut.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. By setting up flushing and sewage discharge mechanisms, impurities and particles attached to the filter screen can be effectively cleaned and discharged without disassembling the filter screen. This improves the cycle of disassembly and maintenance of the filter screen and avoids the problem of slowed filtration efficiency caused by blockage of the filter screen channel. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of the present invention;
[0016] Figure 3 This is a schematic diagram of the nozzle installation of this utility model.
[0017] In the diagram: 1. Filter box; 2. Mounting plate; 3. Drain pipe; 4. Handle; 5. Sliding shaft; 6. Mounting bracket; 7. Forward and reverse motor; 8. Valve plate; 9. Fixing bracket; 10. Threaded rod; 11. Connecting groove; 12. Connector; 13. Interception net; 14. Nozzle; 15. Guide slope. Detailed Implementation
[0018] 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.
[0019] Please see Figures 1-3 In this embodiment of the present invention, a multi-stage filter for production includes a filter box 1 with an inlet and an outlet at both ends. An mounting plate 2 is installed at the top of the filter box 1, and a handle 4 is installed at the top of the mounting plate 2. An intercepting net 13 penetrating into the inner cavity of the filter box 1 is installed at the bottom of the mounting plate 2. The two ends and the bottom of the intercepting net 13 are in contact with the inner wall of the filter box 1, and a sealing element is installed at the position where the intercepting net 13 is in contact with the filter box 1. A flushing mechanism penetrating into the inner cavity of the filter box 1 is installed above the filter box 1, and a sewage discharge mechanism is installed at the bottom of the filter box 1.
[0020] In this embodiment: First, the drug concentrate enters the interior of the filter box 1 through the inlet of the filter box 1. The drug concentrate entering the filter box 1 is intercepted by multiple interception nets 13. The mesh size of the multiple interception nets 13 gradually increases from the inlet to the outlet, so that impurities or particles of different diameters can be intercepted.
[0021] After the original drug solution inside the filter box 1 is emptied, the drain mechanism is opened and the flushing mechanism is activated. Under the flushing force, the particles or impurities attached to the interceptor net 13 are separated from the interceptor net 13 and then discharged outward from the opened drain mechanism, thereby extending the disassembly and maintenance cycle of the interceptor net 13.
[0022] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3The rinsing mechanism includes a fixed frame 9 fixedly installed on the top of the filter box 1. A reversible motor 7 is installed on the top plate of the fixed frame 9. The output shaft end of the reversible motor 7 is coaxially fixedly connected to a threaded rod 10 through a coupling. The bottom end of the threaded rod 10 is rotatably connected to the top plate of the filter box 1. The rinsing mechanism includes a mounting frame 6 threaded to the outer wall of the threaded rod 10. A sliding shaft 5 penetrating into the interior of the filter box 1 is fixedly installed at the bottom end of the mounting frame 6. The sliding shaft 5 is slidably connected to the top plate of the filter box 1, and a sealing ring is installed at the sliding connection between the sliding shaft 5 and the filter box 1. A connector 12 is installed at the bottom end of the sliding shaft 5. The side of the connector 12 near the interceptor net 13 is inclined. Nozzles 14 are equidistantly installed on the inclined surface of the connector 12. The sliding shaft 5 located in the same direction has a hollow structure, and the water channel inside the connector 12 is connected to the inner cavity of the hollow sliding shaft 5. The top opening of the sliding shaft 5 is connected to a water pump through a hose. The water channel inside the connector 12 is connected to the interior of the nozzle 14.
[0023] In this embodiment: when cleaning the interception net 13, the forward and reverse motor 7 is controlled to run. The running forward and reverse motor 7 drives the threaded rod 10 to rotate. When the threaded rod 10 rotates, the mounting bracket 6 moves downward under the guidance of its threaded hole. The mounting bracket 6 drives the sliding shaft 5 to move downward synchronously. The sliding shaft 5 can then drive multiple nozzles 14 to move downward through the connector 12. Conversely, when the forward and reverse motor 7 is controlled to run in the opposite direction, the connector 12, which has moved to the lowest position, can move upward to the initial position.
[0024] During the above process, the water pump is started simultaneously. The water pump enters the hollow sliding shaft 5 through the hose, then enters the connector 12 from the inner cavity of the hollow sliding shaft 5, and then sprays out from the nozzle 14. The sprayed water effectively washes the interception net 13, washing away the particles and impurities attached to the interception net 13. There is no need to disassemble and maintain the interception net 13. This method can extend the disassembly and maintenance efficiency of the interception net 13.
[0025] Please refer to this carefully. Figure 1 and Figure 2 The sewage discharge mechanism includes a sewage pipe 3 integrally formed at the bottom of the filter box. The bottom end of the sewage pipe 3 is open. A valve plate 8 is axially slidably installed inside the sewage pipe 3. One end of the valve plate 8 extends through to the outside of the sewage pipe 3, and a sealing ring is installed at the contact position between the valve plate 8 and the sewage pipe 3. A sewage outlet is opened on the bottom plate of the filter box 1, which is connected to the sewage pipe 3. A guide slope 15 is formed on the top of the end of the sewage outlet near the interceptor net 13. The valve plate 8 is fixedly connected to the outer wall of the sewage pipe 3 by bolts and nuts at the outer end of the sewage pipe 3.
[0026] In this embodiment: before starting the flushing mechanism, the nut is removed, and then the valve plate 8 can be pulled to release the seal on the drain pipe 3. During the flushing process, water mixed with particles and impurities is discharged from the bottom outlet of the drain pipe 3, and the guide slope 15 can reduce the resistance during the discharge process.
[0027] Please refer to this carefully. Figure 1 The vertical plate of the mounting plate 2 has a connecting groove 11 with an open bottom end. The outer wall of the filter box 1 is equipped with a stud that mates with the connecting groove 11. The outer wall of the stud is threaded with a tightening nut.
[0028] In this embodiment: when disassembling and maintaining the interception net 13, the interception net 13 can be lifted up and removed by unscrewing the tightened nut and then pulling the mounting plate 2 upwards using the handle 4.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A multi-stage filter for producing, comprising a filter tank (1) having an inlet and an outlet at each end, characterized in that, The top of the filter box (1) is equipped with an installation plate (2), the top of the installation plate (2) is equipped with a handle (4), the bottom of the installation plate (2) is equipped with an interception net (13) that penetrates into the inner cavity of the filter box (1), the two ends and the bottom end of the interception net (13) are in contact with the inner wall of the filter box (1), and a sealing element is installed at the position where the interception net (13) is in contact with the filter box (1). A flushing mechanism that penetrates into the inner cavity of the filter box (1) is installed above the filter box (1), and a sewage discharge mechanism is installed at the bottom of the filter box (1).
2. The multi-stage filter for production according to claim 1, characterized in that, The rinsing mechanism includes a fixed frame (9) fixedly installed on the top of the filter box (1). A reversible motor (7) is installed on the top plate of the fixed frame (9). A threaded rod (10) is coaxially fixedly connected to the output shaft end of the reversible motor (7) through a coupling. The bottom end of the threaded rod (10) is rotatably connected to the top plate of the filter box (1).
3. The multi-stage filter for production according to claim 2, characterized in that, The rinsing mechanism includes a mounting bracket (6) threaded to the outer wall of the threaded rod (10). A sliding shaft (5) penetrating into the filter box (1) is fixedly installed at the bottom end of the mounting bracket (6). The sliding shaft (5) is slidably connected to the top plate of the filter box (1), and a sealing ring is installed at the sliding connection between the sliding shaft (5) and the filter box (1). A connector (12) is installed at the bottom end of the sliding shaft (5). The side of the connector (12) near the interceptor net (13) is inclined. Nozzles (14) are equidistantly installed on the inclined surface of the connector (12).
4. The multi-stage filter for production according to claim 3, characterized in that, The sliding shaft (5) located in the same direction has a hollow structure, and the water channel inside the connector (12) is connected to the inner cavity of the hollow sliding shaft (5). The top opening of the sliding shaft (5) is connected to the water pump through a hose, and the water channel inside the connector (12) is connected to the inside of the nozzle (14).
5. The multi-stage filter for production according to claim 4, characterized in that, The sewage discharge mechanism includes a sewage discharge pipe (3) integrally formed at the bottom of the filter box (1). The bottom end of the sewage discharge pipe (3) is open. A valve plate (8) is axially slidably installed inside the sewage discharge pipe (3). One end of the valve plate (8) extends through to the outside of the sewage discharge pipe (3). A sealing ring is installed at the contact position between the valve plate (8) and the sewage discharge pipe (3). The bottom plate of the filter box (1) is provided with a drain port that is connected to the drain pipe (3), and a guide slope (15) is formed on the top of the drain port near the interception net (13).
6. The multi-stage filter for production according to claim 5, characterized in that, The valve plate (8) is located at one end outside the drain pipe (3) and is fixedly connected to the outer wall of the drain pipe (3) by bolts and nuts. The vertical plate of the mounting plate (2) has a connecting groove (11) with an open bottom end. The outer wall of the filter box (1) is equipped with a stud that mates with the connecting groove (11). The outer wall of the stud is threaded with a tightening nut.