A quality control article preparation filter

Abstract

The utility model discloses a quality control article preparation filter, including the casing, the casing one end and the other end are fixedly connected with first valve body and second valve body respectively, first valve body one end fixedly penetrates first lid, first lid threadedly connected sleeve body, sleeve body fixedly connected with two filter screens, sleeve body is contacted with first rubber plug, first rubber plug fixedly connected with push rod, second valve body fixedly penetrates second lid, second lid is threadedly connected with cylinder body. The utility model pours into the sleeve body with liquid, removes first rubber plug, opens first, second valve body, and through handle drives push rod and pushes the rubber plug into the deep place of sleeve body, and liquid flows into the casing after being filtered through double filter screen, and finally converges into cylinder body and is placed centrally. This process integrates filling, filtering, purification and temporary storage in one, without the need to disassemble components and containers, reducing the number of transfers to reduce the risk of contamination and loss, and without the need for additional piping and fixing devices, simple operation, suitable for small dose quality control article processing, improving preparation convenience and reliability.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for biomedical testing experiments, and in particular to a quality control product preparation filter. Background Technology

[0002] In the preparation process of quality control materials for clinical testing, the mixed solution usually needs to be filtered to remove particulate impurities, fibrin, and other interfering substances, thereby helping the quality control materials to have good homogeneity and stability. Currently used filtration devices have some aspects that need improvement in practical applications: their structure is often relatively dispersed, with the filter components and storage containers being independent, which requires multiple liquid transfers, easily leading to contamination and loss; operation is also relatively cumbersome, often requiring additional connecting pipelines and fixing devices, and their suitability for processing small doses of quality control materials is not ideal. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quality control filter.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A quality control product preparation filter includes a housing, with a first valve body and a second valve body fixedly connected to one end and the other end of the housing, respectively. A first cover is fixedly passed through one end of the first valve body, and a sleeve is threadedly connected to the first cover. Two filter screens are fixedly connected to the sleeve, and a first rubber plug is in contact with the sleeve. A push rod is fixedly connected to the first rubber plug. A second cover is fixedly passed through the second valve body, and a cylinder is threadedly connected to the second cover.

[0005] Preferably, the housing is fixedly connected to a mouth body, and the mouth body contacts a second rubber stopper.

[0006] Preferably, a second rubber pad is fixedly connected at the contact point between the first cover and the sleeve.

[0007] Preferably, a first rubber pad is fixedly connected at the contact point between the second cover and the cylinder.

[0008] Preferably, the push rod is fixedly connected to a handle.

[0009] Preferably, the shell is cylindrical.

[0010] Preferably, the second rubber stopper is fixedly connected to a lever.

[0011] The beneficial effects of this utility model are as follows: 1. Through the cooperation of the housing, first valve body, second valve body, first cover, first rubber stopper, sleeve, push rod, filter screen, second cover, and cylinder, liquid is poured into the sleeve. Then, the first rubber stopper is moved into the sleeve. After opening the first and second valve bodies, the push rod is driven by the handle to push the first rubber stopper deep into the sleeve, so that the liquid flows into the housing after being filtered by two filter screens, and then flows into the cylinder for centralized storage. Liquid filling, filtration, multi-stage purification, and centralized temporary storage can be integrated into a continuous operation process and integrated structure. There is no need to disassemble the filter components and storage containers, reducing the number of liquid transfers and thus reducing the risk of contamination and loss. At the same time, there is no need for additional connecting pipelines and fixing devices, making the operation steps simpler. It has relatively good adaptability for the filtration of small-dose quality control products, which helps to improve the convenience and reliability of the quality control product preparation process. 2. By engaging the housing, the inlet, and the second rubber plug, the second rubber plug is pulled out of the inlet, allowing liquid to flow into the housing through the inlet. The first valve is then opened, allowing liquid to flow into the sleeve to backwash the two filter screens. This provides a convenient and effective solution for filter cleaning. This method eliminates the need to disassemble the filter screens, simplifying the cleaning process and reducing potential component wear or compromised sealing caused by frequent disassembly. Simultaneously, the liquid is directly injected through the inlet and flows through the backwash path of the filter screens, effectively removing particulate impurities, fibrin, and other residues trapped on the screen surface. This helps restore the filter's filtration efficiency and extend its lifespan. Furthermore, this operation is highly compatible with the overall structure of the device, requires no additional cleaning tools, and is particularly suitable for quickly maintaining the filter screens during small-dose quality control product preparation intervals, ensuring the stability and reliability of subsequent filtration operations. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a quality control filter proposed in this utility model; Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 for Figure 2 A schematic diagram of the structure of the middle shell, the port body, and the first valve body; Figure 4 for Figure 2 A schematic diagram of the structure of the second cover, the cylinder, and the first rubber pad; Figure 5 for Figure 2 A schematic diagram of the structure of the middle sleeve, push rod, and filter screen.

[0013] In the diagram: 1. Shell; 2. Inlet; 3. First valve body; 4. Second valve body; 5. First cover; 6. Sleeve; 7. First rubber stopper; 8. Push rod; 9. Filter screen; 10. Second cover; 11. Cylinder; 12. Second rubber stopper; 13. Handle; 14. First rubber pad; 15. Second rubber pad; 16. Paddle. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Example 1, referring to Figures 1 to 5 A quality control product preparation filter includes a housing 1. A first valve body 3 and a second valve body 4 are fixedly connected to one end and the other end of the housing 1, respectively. Both the first valve body 3 and the second valve body 4 are manual plug-in structures. The valve core is made of nitrile rubber, and the opening or closing state can be switched by rotating the angle from 0 to 90°. A first cover 5 is fixedly inserted through one end of the first valve body 3. The first cover 5 is threadedly connected to a sleeve 6. The two are detachably assembled by the threaded connection. Two filter screens 9 are fixedly connected to the sleeve 6. The material, pore size and mesh number of the two filter screens 9 are selected according to the actual working requirements. The mesh number and pore size of the two filter screens 9 are different to achieve coarse filtration and fine filtration. A first rubber plug 7 is in contact inside the sleeve 6. The outer diameter of the first rubber plug 7 is completely matched with the inner wall diameter of the sleeve 6 to prevent liquid leakage from the gap between the first rubber plug 7 and the sleeve 6. A push rod 8 is fixedly connected to the first rubber plug 7. A second cover 10 is fixedly inserted through the second valve body 4. A cylinder 11 is threadedly connected to the second cover 10. The two are detachably assembled by the threaded connection.

[0016] In this embodiment, the housing 1 is fixedly connected to the inlet 2, which contacts the second rubber plug 12. The first cover 5 is fixedly connected to the contact point with the sleeve 6, and the second rubber pad 15 can effectively fill the threaded connection gap, further improving the interface sealing and preventing unfiltered liquid from leaking from the gap. The second cover 10 is fixedly connected to the contact point with the cylinder 11, and the first rubber pad 14 is used to seal the cylinder 11 and the second cover 10. The push rod 8 is fixedly connected to the handle 13, which is convenient for the operator to hold and apply force. By pushing the handle 13, the push rod 8 and the first rubber plug 7 can be moved axially along the sleeve 6, providing a stable thrust for liquid filtration. The housing 1 is cylindrical, and the second rubber plug 12 is fixedly connected to the paddle 16. The paddle 16 is used by the operator to pinch the paddle 16 with their fingers to quickly pull off the second rubber plug 12 without the need for additional tools, thus improving the convenience of the backwashing operation.

[0017] The working principle of this embodiment is as follows: In use, the liquid to be filtered is first poured into the sleeve 6, then the first rubber stopper 7 is moved into the sleeve 6. The first valve body 3 and the second valve body 4 are opened. The handle 13 drives the push rod 8 to push the first rubber stopper 7 deep into the sleeve 6, allowing the liquid to pass through two filter screens 9 sequentially before flowing into the housing 1, and then into the cylinder 11 for centralized temporary storage. This process integrates liquid filling, filtration, multi-stage purification, and centralized temporary storage into a continuous operation and integrated structure. It eliminates the need to disassemble the filter components and storage containers, reducing the number of liquid transfers, lowering the risk of contamination and loss, and eliminating the need for additional connecting pipes and fixing devices. The operation steps are simple, and it is suitable for filtering small doses of quality control products. This method is superior and helps improve the convenience and reliability of the preparation process. When it is necessary to clean the filter screen 9, the second rubber plug 12 can be pulled out of the outlet body 2, and the cleaning liquid can be injected into the housing 1 through the outlet body 2. The first valve body 3 can be opened to allow the liquid to flow into the sleeve body 6 to backwash the two filter screens 9. This method can complete the cleaning without disassembling the filter screen 9, which simplifies the process and reduces the component wear or interface sealing problems caused by frequent disassembly and assembly. It can specifically remove the impurities trapped on the surface of the filter screen 9, restore the filtration efficiency, extend the service life, and has strong compatibility with the overall structure of the device. No additional tools are required, making it suitable for quickly completing the maintenance of the filter screen 9 during the preparation of small dose quality control products, ensuring the stability and reliability of subsequent filtration operations.

[0018] 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 quality control product preparation filter, comprising a housing (1), characterized in that, The housing (1) is fixedly connected to a first valve body (3) and a second valve body (4) at one end and the other end, respectively. A first cover (5) is fixedly passed through one end of the first valve body (3). The first cover (5) is threadedly connected to a sleeve (6). Two filter screens (9) are fixedly connected to the sleeve (6). A first rubber plug (7) is in contact with the inside of the sleeve (6). A push rod (8) is fixedly connected to the first rubber plug (7). A second cover (10) is fixedly passed through the second valve body (4). A cylinder (11) is threadedly connected to the second cover (10).

2. The quality control product preparation filter according to claim 1, characterized in that, The shell (1) is fixedly connected to the mouth body (2), and the mouth body (2) is in contact with the second rubber stopper (12).

3. The quality control product preparation filter according to claim 1, characterized in that, A second rubber pad (15) is fixedly connected at the contact point between the first cover (5) and the sleeve (6).

4. A quality control product preparation filter according to claim 1, characterized in that, A first rubber pad (14) is fixedly connected at the contact point between the second cover (10) and the cylinder (11).

5. A quality control product preparation filter according to claim 1, characterized in that, The push rod (8) is fixedly connected to a handle (13).

6. A quality control product preparation filter according to claim 1, characterized in that, The shell (1) is cylindrical.

7. A quality control product preparation filter according to claim 2, characterized in that, The second rubber stopper (12) is fixedly connected to a lever (16).

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