An auxiliary filtering device for drug testing
By combining the filtration and activation structures, and utilizing the squeezing action of the rotating blades and straight plates driven by the motor, the problem of fruit pulp residue in existing filters is solved, achieving efficient separation of fruit pulp from the solution and convenient cleaning of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 辛菲
- Filing Date
- 2025-05-12
- Publication Date
- 2026-06-12
AI Technical Summary
Existing filters affect filtration efficiency during fruit pulp separation and leave significant pulp residue.
It adopts a filtration structure including a filter screen, rotating plates and a straight plate, combined with a starting structure driven by an output motor. The pulp and solution are efficiently separated by the squeezing action of the rotating plates and the straight plate, and the spiral mechanism prevents the filter holes from clogging.
It achieves efficient separation of fruit pulp and solution, reduces labor consumption, is easy to clean and use, avoids clogging of filter holes, and is suitable as an auxiliary filtration device for drug testing.
Smart Images

Figure CN224345526U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drug testing technology, and more specifically, to an auxiliary filtration device for drug testing. Background Technology
[0002] Drug testing encompasses a wide range of items, including drug quality testing, drug component testing, drug heavy metal testing, drug adverse reaction testing, drug sealing testing, biological drug testing, drug appearance testing, routine drug testing, drug physicochemical testing, drug safety testing, and drug defect testing. The purpose of drug testing is to prevent substandard drugs from entering the market and to ensure drug safety. In most cases, drug testing employs a filtration device to filter and classify the drugs for testing.
[0003] As living standards continue to improve, people are increasingly pursuing food safety and nutritional value. As the raw material for most foods and the main source of nutrients for people, the testing of agricultural products is particularly important. To test pesticide residues in fruits and vegetables, agricultural products need to be crushed, solutions extracted, and thoroughly mixed before sampling and testing. However, filtration methods simply involve crushing the items and then separating the pulp through a filter screen. Existing filters not only affect the filtration effect but also leave pulp residues after filtration. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] The purpose of this invention is to provide an auxiliary filtration device for drug testing, in order to solve the problem mentioned in the background art that existing filters not only affect the filtration effect, but also leave pulp residue after filtration.
[0006] 2. Technical Solution
[0007] An auxiliary filtration device for drug testing includes a base plate, a lower shell, a middle shell, and a top shell. The base plate is installed at the bottom of the lower shell, the middle shell is located between the lower shell and the top shell, the middle shell has a filtration structure inside, and the top shell has an activation structure inside.
[0008] The filter structure includes a filter screen, a rotating plate, and a straight plate. The filter screen is located in the inner cavity of the middle shell and is fixedly connected. The rotating plate is located on top of the filter screen. One end of the rotating plate near the filter screen is fixedly connected to the side of the straight plate. The straight plate is parallel to the filter screen.
[0009] The starting structure includes a rotating rod, a connector, and an output motor. The inner side of the rotating plate is fixedly connected to the surface of the rotating rod. There are two connectors, one located at the bottom of the top shell and the other at the top of the filter screen. The output motor is installed inside the top shell, and the output end of the output motor is used in conjunction with the connector at the top.
[0010] Preferably, the rotating plate is spirally coiled around the surface of the rotating rod.
[0011] Preferably, the end of the straight plate away from the rotating plate is beveled, and the bottom of the straight plate contacts the top of the filter screen.
[0012] Preferably, the connector includes a fixed block and a rotating block. The outer surfaces of the two fixed blocks are rotatably connected to the bottom of the top shell and the top of the filter screen respectively through bearings. The output end of the output motor is fixedly connected to the top fixed block. One end of the fixed block is fixedly connected to the rotating block. Rotary grooves are provided at both ends of the rotating rod. One end of the rotating block is embedded in the rotating groove.
[0013] Preferably, positioning rods are fixed to the four corners of the bottom of the top shell, and positioning grooves are opened inside the middle shell, with the positioning rods embedded inside the positioning grooves.
[0014] Preferably, the middle shell and the lower shell are fixedly installed by threads, and the middle shell and the lower shell are provided with anti-slip treatment near the connection point.
[0015] Preferably, the top of the top shell is provided with two buttons, which are used in conjunction with the output motor. The two buttons control the forward and reverse rotation of the output end of the output motor, respectively.
[0016] 3. Beneficial effects
[0017] Compared with existing technologies, the advantages of this utility model are:
[0018] 1. This utility model separates fruit pulp and solution through a filtration structure and a starting structure. It uses an output motor to separate the pulp and solution, which not only reduces manpower but also achieves good separation effect. The filtration structure is connected and fixed to the starting structure and filter screen at both ends by connectors, making it easy to disassemble, clean, and use. The spiral mechanism works in conjunction with the filter screen to squeeze the pulp and solution through the filter screen, allowing it to flow into the lower shell for storage. The lower shell is detachable, making it convenient for users to use as a storage tool to refrigerate the solution for future testing or for immediate inspection. Furthermore, the spiral mechanism can move the pulp inside the spiral blades of the filter screen, preventing the filter screen pores from clogging during the filtration process. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model on the right side;
[0020] Figure 2 This is a disassembled sectional view of the lower shell, middle shell, and top shell of this utility model;
[0021] Figure 3 This is a bottom-view disassembled schematic diagram of part of the structure of this utility model;
[0022] Figure 4 This utility model Figure 2 A magnified view of a section at point A in the middle;
[0023] Explanation of the labels in the diagram: 1. Base plate; 2. Lower shell; 3. Middle shell; 4. Top shell; 5. Filter structure; 6. Activation structure; 7. Positioning rod;
[0024] 51. Filter screen; 52. Rotating plate; 53. Straight plate; 61. Rotating rod; 62. Connecting piece; 621. Fixing block; 622. Rotating block; 63. Output motor. Detailed Implementation
[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0026] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Please see Figure 1-4 This utility model provides a technical solution:
[0029] An auxiliary filtration device for drug testing includes a base plate 1, a lower shell 2, a middle shell 3, and a top shell 4. The base plate 1 is installed at the bottom of the lower shell 2, the middle shell 3 is located between the lower shell 2 and the top shell 4, the middle shell 3 is provided with a filtration structure 5 inside, and the top shell 4 is provided with an activation structure 6 inside.
[0030] The filter structure 5 includes a filter screen 51, a rotating plate 52, and a straight plate 53. The filter screen 51 is located in the inner cavity of the middle shell 3 and is fixedly connected. The rotating plate 52 is located on top of the filter screen 51. One end of the rotating plate 52 near the filter screen 51 is fixedly connected to the side of the straight plate 53. The straight plate 53 is parallel to the filter screen 51. As the fruit rotates inside the rotating plate 52, it can be squeezed by the straight plate 53 and the rotating plate 52, causing the internal water to flow out.
[0031] The starting structure 6 includes a rotating rod 61, a connector 62, and an output motor 63. The inner side of the rotating plate 52 is fixed to the surface of the rotating rod 61. There are two connectors 62, one located at the bottom of the top shell 4 and the other at the top of the filter screen 51. The output motor 63 is installed inside the top shell 4. The output end of the output motor 63 is used in conjunction with the top connector 62. The structure is simple, convenient and practical.
[0032] Specifically, the rotating plate 52 is spirally coiled on the surface of the rotating rod 61, which can squeeze and crush the fruit during movement and prevent the fruit from splashing juice and contaminating the outside world during the crushing process.
[0033] Furthermore, the end of the straight plate 53 away from the rotating plate 52 is beveled, and the bottom of the straight plate 53 contacts the top of the filter screen 51. When the output motor 63 drives the spiral plate to reverse, the bevel of the straight plate 53 can effectively separate the pulp from the filter screen 51.
[0034] It is worth noting that the connector 62 includes a fixed block 621 and a rotating block 622. The outer surfaces of the two fixed blocks 621 are rotatably connected to the bottom of the top shell 4 and the top of the filter screen 51 respectively through bearings. The output end of the output motor 63 is fixedly connected to the top fixed block 621. One end of the fixed block 621 is fixedly connected to the rotating block 622. Rotating grooves are opened at both ends of the rotating rod 61. One end of the rotating block 622 is embedded in the rotating groove, realizing the quick assembly and disassembly of the starting structure 6 and the filter screen 51.
[0035] It is worth noting that positioning rods 7 are fixedly connected to the four corners of the bottom of the top shell 4, and positioning grooves are opened inside the middle shell 3. The positioning rods 7 are embedded in the positioning grooves, which increases the stability between the top shell 4 and the middle shell 3.
[0036] In addition, the middle shell 3 and the lower shell 2 are fixedly installed by threads. The middle shell 3 and the lower shell 2 are provided with anti-slip treatment near the connection point to increase the friction between the user's hand and the present invention, and to prevent slippage during operation.
[0037] It must be said that the top of the top shell 4 has two buttons, which are used in conjunction with the output motor 63. The two buttons control the forward and reverse rotation of the output end of the output motor 63, thereby controlling the forward and reverse rotation of the output motor 63 to achieve fruit crushing and pulp collection.
[0038] The output motor 63, control module, and power supply module involved in this utility model are all existing technologies that can be fully implemented by those skilled in the art, and there is no need to elaborate. The content protected by this utility model does not involve any improvement to the internal structure and method.
[0039] Working principle: First, the user connects the lower shell 2 and the middle shell 3 via threads. After connection, the user inserts the rotating rod 61 into the rotating block 622 through the groove at the bottom. Then, the user pours the fruit to be inspected into the spiral plate. After pouring, the user lifts the top shell 4, causing the positioning rod 7, the positioning groove, and the top fixing block 621 to embed into the top of the rotating rod 61. Then, the user controls the output motor 63 to operate via a button, causing the output end of the output motor 63 to drive the fixing block 621 to rotate. The rotation of the fixing block 621 drives the rotating block 622, which in turn drives the rotating rod 61 to rotate through the groove. The rotation of the rotating rod 61 drives the rotating plate 52 to rotate. The motor drives the straight plate 53 and the fruit to rotate. As the fruit rotates, the gap between the rotating plates 52 decreases, causing the rotating plates 52 and the straight plate 53 to squeeze and crush the fruit. The crushed fruit juice flows through the filter screen 51 into the lower shell 2 for storage, while the intercepted fruit pulp remains on the filter screen 51. When the separation is complete, the user operates the output end of the output motor 63 to reverse, using the inclined surface of the straight plate 53 to scoop the fruit pulp into the spiral plate. The fruit pulp moves upward as the spiral plate rotates. Then, the user removes the top shell 4, removes the spiral plate, and inspects the fruit pulp. After that, the middle shell 3 and the lower shell 2 are separated, and the filter screen 51 is cleaned to complete the operation.
[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An auxiliary filtration device for drug testing, comprising a base plate (1), a lower shell (2), a middle shell (3), and a top shell (4), characterized in that: The bottom plate (1) is installed at the bottom of the lower shell (2), the middle shell (3) is located between the lower shell (2) and the top shell (4), the middle shell (3) is provided with a filter structure (5), and the top shell (4) is provided with a start-up structure (6). The filter structure (5) includes a filter screen (51), a rotating plate (52), and a straight plate (53). The filter screen (51) is located in the inner cavity of the middle shell (3) and is fixedly connected. The rotating plate (52) is located on top of the filter screen (51). One end of the rotating plate (52) near the filter screen (51) is fixedly connected to the side of the straight plate (53). The straight plate (53) is parallel to the filter screen (51). The starting structure (6) includes a rotating rod (61), a connector (62), and an output motor (63). The inner side of the rotating plate (52) is fixed to the surface of the rotating rod (61). There are two connectors (62), one located at the bottom of the top shell (4) and the other located at the top of the filter screen (51). The output motor (63) is installed inside the top shell (4), and the output end of the output motor (63) is used in conjunction with the top connector (62).
2. The auxiliary filtration device for drug testing according to claim 1, characterized in that: The rotating plate (52) is spirally coiled on the surface of the rotating rod (61).
3. The auxiliary filtration device for drug testing according to claim 1, characterized in that: The end of the straight plate (53) away from the rotating plate (52) is beveled, and the bottom of the straight plate (53) contacts the top of the filter screen (51).
4. The auxiliary filtration device for drug testing according to claim 1, characterized in that: The connector (62) includes a fixed block (621) and a rotating block (622). The outer surfaces of the two fixed blocks (621) are rotatably connected to the bottom of the top shell (4) and the top of the filter screen (51) respectively through bearings. The output end of the output motor (63) is fixedly connected to the top fixed block (621). One end of the fixed block (621) is fixedly connected to the rotating block (622). Rotating grooves are provided at both ends of the rotating rod (61). One end of the rotating block (622) is embedded in the rotating groove.
5. The auxiliary filtration device for drug testing according to claim 1, characterized in that: Positioning rods (7) are fixed to the four corners of the bottom of the top shell (4), and positioning grooves are provided inside the middle shell (3), with the positioning rods (7) embedded inside the positioning grooves.
6. The auxiliary filtration device for drug testing according to claim 1, characterized in that: The middle shell (3) and the lower shell (2) are fixedly installed by threads, and the middle shell (3) and the lower shell (2) are provided with anti-slip treatment near the connection.
7. The auxiliary filtration device for drug testing according to claim 1, characterized in that: The top of the top shell (4) is provided with two buttons, which are used in conjunction with the output motor (63). The two buttons control the output end of the output motor (63) to rotate in both directions.