Sampling device for microporous filter membrane

Abstract

The utility model discloses a sampling device of a microfiltration membrane, which belongs to the technical field of microfiltration membrane of a microfiltration filter and comprises an operating platform, and a sampling port is arranged at the center of the operating platform. By arranging the filter membrane fixing structure, when the L-shaped plate is pressed down, the spring is changed from a loose state to a tightened state, the second sliding block is pushed to move in the direction of the second sliding groove, the first sliding block is pushed to move in the direction of the first sliding groove, and when the first sliding block moves to the position of the semicircular block, the semicircular block is jacked up, so that the filter membrane is fixed. The fixing column drives the filter membrane pressing cover to move, a worker can conveniently place the microporous filter membrane on the filter membrane fixing table, a pressing ring on the filter membrane pressing cover can press and fix the microporous filter membrane, the microporous filter membrane is prevented from moving during sampling, and the sampling quality of the microporous filter membrane is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of microporous filter membranes, in particular to a sampling device for microporous filter membranes. Background Art

[0002] The microporous filter membrane is a special thin film material with a pore size of micrometer level and a high filtering accuracy. Its main features are high efficiency, high precision and repeatability. It can effectively remove pollutants such as suspended matter, microorganisms, particles and organic matter in water, and is used in water treatment, food and beverage, biopharmaceuticals, electronics industry and other fields. The filtering principle of the microporous filter membrane is based on pore size screening and surface adsorption. When water or other liquids pass through the microporous filter membrane, larger particles and microorganisms will be isolated by the tiny holes on the membrane. In order to analyze and test the microporous filter membrane and evaluate the performance, quality and use of the membrane, it is necessary to sample the microporous filter membrane. The existing technology for sampling the microporous filter membrane usually involves manually placing the membrane on a sampling table for sampling, and the membrane cannot be effectively fixed. In addition, there are differences in the quality of manual sampling, and the microporous filter membrane cannot be effectively analyzed and tested. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the prior art usually involves manually placing the filter membrane on a sampling table for sampling, which makes it impossible to effectively fix the filter membrane, and there are differences in the quality of manual sampling, making it impossible to effectively analyze and test the microporous filter membrane.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a sampling device for a microporous filter membrane, comprising an operating table, a sampling port is arranged at the center position of the operating table, support legs are fixedly connected at the four corners of the bottom surface of the operating table, a filter membrane fixing structure is arranged on the top surface of the operating table, a screw motor is arranged at the bottom end of the operating table, a threaded rod is installed on the screw motor, a moving disk is threadedly connected to the outer side of the threaded rod, a plurality of connecting columns are fixedly connected to the top surface of the moving disk, and a sampling table is fixedly connected to the top surfaces of the plurality of connecting columns.

[0005] Through the above technical solution, starting the screw motor will drive the threaded rod to rotate, so that the moving disk threadedly connected to the threaded rod moves along the direction of the threaded rod, so that the sampling platform can move to the position of the microporous filter membrane.

[0006] The utility model is further configured that a plurality of heating rods are installed on the top surface of the sampling table, a material receiving tray is fixedly connected to the outer wall of the heating rod, and a plurality of sampling teeth are arranged on the top surface of the heating rod.

[0007] Through the above technical solution, the heating rod is electrically driven. When the heating rod is energized, the sampling teeth on the top of the heating rod will be heated, so that the sampling teeth can more easily cut and sample the microporous filter membrane. At the same time, the receiving tray can prevent the removed microporous filter membrane samples from falling to the ground, thereby ensuring the stability of the microporous filter membrane sampling.

[0008] The utility model is further configured as follows: the filter membrane fixing structure includes a filter membrane fixing platform, the filter membrane fixing platform is fixedly connected to the top surface of the operating table, an annular groove is arranged on the top surface of the filter membrane fixing platform, a filter membrane pressure cover is arranged on the top of the filter membrane fixing platform, a pressure ring is fixedly connected to the bottom surface of the filter membrane pressure cover, and the pressure ring is arranged in the annular groove.

[0009] Through the above technical scheme, the microporous filter membrane is placed in the annular groove of the membrane fixing platform, so that the pressure ring on the membrane pressure cover can press and fix the microporous filter membrane to prevent the microporous filter membrane from moving during sampling, thereby improving the sampling quality of the microporous filter membrane.

[0010] The utility model is further configured such that circular grooves are provided at the four corners of the top surface of the filter membrane fixing platform, first slide grooves are provided at positions close to the circular grooves on the bottom surface of the filter membrane fixing platform, and second slide grooves are provided at positions between the first slide grooves on both sides of the filter membrane fixing platform.

[0011] The utility model is further configured such that a first slider is provided in each of the first slide grooves, the end of the first slider close to the circular groove is wedge-shaped, the end of the first slider close to the second slide groove is italic, and a second slider is provided in each of the second slide grooves, and the second slider is trapezoidal.

[0012] Through the above technical solution, when the second sliding block moves along the direction of the second sliding groove, it will push the first sliding block to move along the direction of the first sliding groove.

[0013] The utility model is further configured such that the sides of the second sliding blocks that are away from each other are fixedly connected with an L-shaped plate, the inner sides of the L-shaped plates are fixedly connected with springs, and the other ends of the springs are fixedly connected to the filter membrane fixing platform.

[0014] Through the above technical solution, when the L-shaped plate is pressed, the spring will change from a relaxed state to a tightened state, and at the same time, it will push the second slider to move along the direction of the second slide groove. When the force on the L-shaped plate stops, the spring will change from a tightened state to a relaxed state, and drive the L-shaped block and the second slider to move.

[0015] The utility model is further configured that the four corners of the bottom surface of the filter membrane pressure cover are fixedly connected with fixing columns, the fixing columns are respectively arranged in circular grooves, and the bottom surfaces of the fixing columns are fixedly connected with semicircular blocks.

[0016] Through the above technical solution, when the first slider moves to the position of the semicircular block, it will lift up the semicircular block, so that the fixed column drives the filter membrane cover to move, making it convenient for the staff to place the microporous filter membrane on the filter membrane fixing table.

[0017] The beneficial effects of the utility model are as follows:

[0018] 1. The utility model provides a filter membrane fixing structure. When the L-shaped plate is pressed, the spring changes from a relaxed state to a tightened state, and at the same time pushes the second slider to move along the direction of the second slide groove. When the second slider moves along the direction of the second slide groove, it pushes the first slider to move along the direction of the first slide groove. When the first slider moves to the position of the semicircular block, the semicircular block is lifted up, so that the fixing column drives the filter membrane gland to move, which is convenient for the staff to place the microporous filter membrane on the filter membrane fixing table, so that the pressure ring on the filter membrane gland can press and fix the microporous filter membrane, prevent the microporous filter membrane from moving during sampling, and improve the sampling quality of the microporous filter membrane.

[0019] 2. The utility model sets a screw motor and a sampling platform. Starting the screw motor will drive the threaded rod to rotate, so that the movable plate threadedly connected to the threaded rod moves along the direction of the threaded rod, so that the sampling platform can move to the position of the microporous filter membrane, and when the heating rod is energized, the sampling teeth on the top of the heating rod will be heated, so that the sampling teeth can more easily cut and sample the microporous filter membrane. At the same time, the receiving tray can prevent the removed microporous filter membrane samples from falling to the ground, thereby ensuring the stability of the microporous filter membrane sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0021] Figure 2 It is a partial structural schematic diagram of the utility model;

[0022] Figure 3 For this utility model Figure 2 A magnified view of part A;

[0023] Figure 4 It is a three-dimensional schematic diagram of the filter membrane fixing structure of the utility model;

[0024] Figure 5 It is a partial schematic diagram of the filter membrane fixing structure in the utility model;

[0025] Figure 6 It is a structural schematic diagram of the filter membrane gland in the utility model.

[0026] In the figure: 1. operating table; 2. supporting legs; 3. screw motor; 4. threaded rod; 5. moving plate; 6. connecting column; 7. sampling table; 8. heating rod; 9. sampling teeth; 10. receiving plate; 11. filter membrane fixing table; 12. first slide groove; 13. circular groove; 14. second slide groove; 15. first slider; 16. second slider; 17. L-shaped plate; 18. spring; 19. annular groove; 20. filter membrane pressure cover; 21. pressure ring; 22. fixing column; 23. semicircular block. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0028] See also Figures 1 to 6 A sampling device for a microporous filter membrane comprises an operating table 1, a sampling port is arranged at the center of the operating table 1, four corners of the bottom surface of the operating table 1 are fixedly connected with supporting legs 2, a filter membrane fixing structure is arranged on the top surface of the operating table 1, a screw motor 3 is arranged at the bottom end of the operating table 1, a threaded rod 4 is installed on the screw motor 3, a moving plate 5 is threadedly connected to the outer side of the threaded rod 4, a plurality of connecting columns 6 are fixedly connected to the top surface of the moving plate 5, and a sampling table 7 is fixedly connected to the top surface of the plurality of connecting columns 6;

[0029] The filter membrane fixing structure includes a filter membrane fixing platform 11, which is fixedly connected to the top surface of the operating table 1, and an annular groove 19 is arranged on the top surface of the filter membrane fixing platform 11. A filter membrane gland 20 is arranged on the top of the filter membrane fixing platform 11, and a pressure ring 21 is fixedly connected to the bottom surface of the filter membrane gland 20, and the pressure ring 21 is arranged in the annular groove 19. A first slider 15 is arranged in the first slide groove 12, and the end of the first slider 15 close to the circular groove 13 is wedge-shaped, and the end of the first slider 15 close to the second slide groove 14 is italic, and a second slider 16 is arranged in the second slide groove 14, and the second slider 16 is trapezoidal;

[0030] Circular grooves 13 are provided at the four corners of the top surface of the filter membrane fixing platform 11, first slide grooves 12 are provided at the positions near the circular grooves 13 on the bottom surface of the filter membrane fixing platform 11, second slide grooves 14 are provided at the positions between the first slide grooves 12 on both sides of the filter membrane fixing platform 11, and the sides of the second sliders 16 away from each other are fixedly connected with L-shaped plates 17, the inner sides of the L-shaped plates 17 are fixedly connected with springs 18, and the other ends of the springs 18 are fixedly connected to the filter membrane fixing platform 11, a number of heating rods 8 are installed on the top surface of the sampling platform 7, a receiving tray 10 is fixedly connected to the outer walls of the heating rods 8, and a number of sampling teeth 9 are provided on the top surface of the heating rods 8, and fixed columns 22 are fixedly connected at the four corners of the bottom surface of the filter membrane pressure cover 20, the fixed columns 22 are respectively arranged in the circular grooves 13, and semicircular blocks 23 are fixedly connected to the bottom surfaces of the fixed columns 22.

[0031] When the utility model is in use, the L-shaped plate 17 is first pressed to change the spring 18 from a relaxed state to a tightened state, and at the same time, the second slider 16 is pushed to move along the direction of the second slide groove 14. When the second slider 16 moves along the direction of the second slide groove 14, the first slider 15 is pushed to move along the direction of the first slide groove 12. When the first slider 15 moves to the position of the semicircular block 23, the semicircular block 23 is lifted up, so that the fixing column 22 drives the filter membrane gland 20 to move, which is convenient for the staff to place the microporous filter membrane on the filter membrane fixing platform 11. After that, the force on the L-shaped plate 17 is stopped, and the spring 18 is changed from a tightened state to a loose state. The microporous filter membrane is in a relaxed state, and the L-shaped plate 17 and the second slider 16 are driven to move, so that the pressure ring 21 on the membrane gland 20 can press and fix the microporous filter membrane to prevent the microporous filter membrane from moving during sampling. Finally, the screw motor 3 is started to drive the threaded rod 4 to rotate, so that the moving disk 5 threadedly connected to the threaded rod 4 moves along the direction of the threaded rod 4, so that the sampling platform 7 can move to the position of the microporous filter membrane. At the same time, when the heating rod 8 is energized, the sampling teeth 9 at the top of the heating rod 8 will be heated, so that the sampling teeth 9 can cut and sample the microporous filter membrane, thereby effectively improving the sampling quality of the microporous filter membrane.

[0032] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A sampling device for a microporous filter membrane, comprising an operating table (1), characterized in that: A sampling port is provided at the center of the operating table (1); support legs (2) are fixedly connected at the four corners of the bottom surface of the operating table (1); a filter membrane fixing structure is provided on the top surface of the operating table (1); a screw motor (3) is provided at the bottom end of the operating table (1); a threaded rod (4) is installed on the screw motor (3); a moving disk (5) is threadedly connected to the outer side of the threaded rod (4); a plurality of connecting columns (6) are fixedly connected to the top surface of the moving disk (5); and a sampling table (7) is fixedly connected to the top surfaces of the plurality of connecting columns (6).

2. A microporous filter membrane sampling device according to claim 1, characterized in that: A plurality of heating rods (8) are installed on the top surface of the sampling platform (7), a receiving tray (10) is fixedly connected to the outer wall of each heating rod (8), and a plurality of sampling teeth (9) are arranged on the top surface of each heating rod (8).

3. A microporous filter membrane sampling device according to claim 1, characterized in that: The filter membrane fixing structure comprises a filter membrane fixing platform (11), the filter membrane fixing platform (11) is fixedly connected to the top surface of the operating table (1), an annular groove (19) is arranged on the top surface of the filter membrane fixing platform (11), a filter membrane pressure cover (20) is arranged at the top end of the filter membrane fixing platform (11), a pressure ring (21) is fixedly connected to the bottom surface of the filter membrane pressure cover (20), and the pressure ring (21) is arranged in the annular groove (19).

4. A sampling device for a microporous filter membrane according to claim 3, characterized in that: Circular grooves (13) are provided at the four corners of the top surface of the filter membrane fixing platform (11), first slide grooves (12) are provided at positions close to the circular grooves (13) on the bottom surface of the filter membrane fixing platform (11), and second slide grooves (14) are provided at positions between the first slide grooves (12) on both sides of the filter membrane fixing platform (11).

5. A microporous filter membrane sampling device according to claim 4, characterized in that: The first slide groove (12) is provided with a first sliding block (15), and the end of the first sliding block (15) close to the circular groove (13) is wedge-shaped, and the end of the first sliding block (15) close to the second slide groove (14) is italic, and the second sliding block (16) is provided in the second slide groove (14), and the second sliding block (16) is trapezoidal.

6. A sampling device for a microporous filter membrane according to claim 5, characterized in that: The sides of the second sliding blocks (16) that are away from each other are fixedly connected to an L-shaped plate (17), the inner sides of the L-shaped plates (17) are fixedly connected to a spring (18), and the other end of the spring (18) is fixedly connected to the filter membrane fixing platform (11).

7. A microporous filter membrane sampling device according to claim 3, characterized in that: The four corners of the bottom surface of the filter membrane gland (20) are all fixedly connected with fixing columns (22), the fixing columns (22) are respectively arranged in the circular grooves (13), and the bottom surfaces of the fixing columns (22) are all fixedly connected with semicircular blocks (23).

Images