Cell sieve

Abstract

The utility model discloses a cell sieve which comprises a sieve mesh, a supporting frame and a fixing ring, the bottom face of the fixing ring is fixedly connected with a connector connected with a liquid receiving bottle, the sieve mesh is arranged on the supporting frame in a sleeved mode, and the supporting frame and the inner wall of the fixing ring are arranged in a spaced mode. A connecting ring is fixedly connected to the top face of the supporting frame, a first ring groove is formed in the bottom face of the connecting ring, and a second ring groove is formed in the top face of the fixing ring. The connecting ring on the outer side of the first ring groove is inserted into the second ring groove, the fixing ring on the inner side of the second ring groove is inserted into the first ring groove, and the top of the screen is clamped and fixed by the fixing ring and the inner top wall of the first ring groove. The outer end of the fixing ring is fixedly connected with a limiting assembly, and the limiting assembly is used for limiting the connecting ring and fixing the connecting ring to the fixing ring. According to the utility model, the screen mesh can be conveniently disassembled and assembled, so that the screen mesh can be conveniently and effectively cleaned and maintained, and the use cost of the cell screen is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cell filtration, in particular to a cell sieve. Background Art

[0002] Cells are the basic structural and functional units of organisms. All organisms except viruses are composed of cells. Cell research plays an important role in the field of biomedicine. During the processes of cell research, preparation and application, it is often necessary to filter cells to remove cell debris, impurities or specific types of cells, so as to obtain a pure cell sample. When filtering cells, a cell sieve is usually required.

[0003] The Chinese utility model patent with the application number 202022699272.9 discloses a cell sieve. Although this cell sieve can be arranged on an external device through four support frames at the edge of a fixing ring, and can support a cell liquid container through a support ring above the fixing ring and the sieve mesh, reducing the workload of staff.

[0004] However, the sieve mesh of this cell sieve is fixedly connected to the lower surface of the fixing ring, and the disassembly and assembly of the sieve mesh are inconvenient. After use, it is not convenient to clean and maintain the sieve mesh, resulting in the blockage of the sieve mesh, thereby affecting the filtration efficiency, and the cell separation sieve needs to be frequently replaced. Moreover, when the sieve mesh is damaged, the whole cell sieve also needs to be replaced, resulting in a relatively high use cost.

[0005] Therefore, it is necessary to develop a cell sieve aiming at the above defects. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a cell sieve, which can facilitate the disassembly and assembly of the sieve mesh, and then can facilitate the effective cleaning and maintenance of the sieve mesh, reducing the use cost of the cell sieve.

[0007] To solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A cell sieve of the utility model comprises a sieve mesh, a support frame and a fixing ring. A joint is fixedly connected to the bottom surface of the fixing ring. The sieve mesh is sleeved on the support frame, and a gap is arranged between the support frame and the inner wall of the fixing ring. A connecting ring is fixedly connected to the top surface of the support frame. A first ring groove is formed on the bottom surface of the connecting ring. A second ring groove is formed on the top surface of the fixing ring. The connecting ring outside the first ring groove is inserted into the second ring groove, and the fixing ring inside the second ring groove is inserted into the first ring groove. The top of the sieve mesh is clamped and fixed by the fixing ring and the inner top wall of the first ring groove. A limiting component is fixedly connected to the outer end of the fixing ring, and the limiting component is used for limiting the connecting ring and fixing it on the fixing ring.

[0009] Further, the number of the limiting components is two and they are symmetrically arranged. The limiting component includes a mounting block, a pull rod, a compression spring, a limiting ring and a wedge block. The mounting block is fixedly connected to the outer wall of the fixed ring. A first limiting hole is horizontally penetrated through the mounting block. A second limiting hole is formed in the fixed ring. One end of the second limiting hole is coaxially communicated with the first limiting hole, and the other end is communicated with the second annular groove. The pull rod is slidably connected in the first limiting hole and the second limiting hole. One end of the pull rod extends out of the mounting block. The compression spring is sleeved on the pull rod and one end of the compression spring is fixedly connected to the inner wall of the second limiting hole. The limiting ring is fixedly connected to the outer wall of the bottom of the connecting ring. The wedge block is fixedly connected to one end of the pull rod and is fixedly connected to the other end of the compression spring. The limiting ring is in driving connection with the wedge block.

[0010] Further, the second limiting hole is a rectangular hole. A limiting plate is fixedly connected between the wedge block and the pull rod. The limiting plate is adapted to and slidably connected with the second limiting hole.

[0011] Further, a pull ring is hinged to one end of the pull rod extending out of the mounting block.

[0012] Further, the top of the support frame is a cylinder and the bottom is hollowed out. A third annular groove is formed in the outer wall of the cylinder of the support frame. The screen is wound and fixed in the third annular groove by one of a rubber band, a rope or a wire.

[0013] Further, the connection part between the inner wall of the third annular groove and the outer wall of the cylinder of the support frame is rounded off.

[0014] Further, the top wall of the inner top of the first annular groove and the top surface of the fixed ring in the first annular groove are both provided with mutually matching corrugated sections.

[0015] Further, two handles are fixedly connected to the top surface of the connecting ring. The two handles are arranged oppositely.

[0016] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0017] The present utility model sleeves the screen on the support frame of the connecting ring, inserts the outside of the connecting ring into the second annular groove of the fixed ring, and fixes the connecting ring on the fixed ring through the limiting component. At the same time, by inserting the fixed ring inside the second annular groove into the first annular groove, the screen located inside the first annular groove is tightened and fixed on the inner top wall of the first annular groove. Thereby, the fixation of the screen can be realized, the disassembly and assembly of the screen can be facilitated, the effective cleaning and maintenance of the screen can be facilitated, and only the screen can be replaced after the screen is damaged, without the need for overall replacement, reducing the use cost of the cell sieve. Description of the Drawings

[0018] The following further describes the present utility model in conjunction with the accompanying drawings.

[0019] Figure 1 Schematic diagram of the three-dimensional structure of the cell sieve of the present utility model;

[0020] Figure 2 Cross-sectional view of the cell sieve of the present utility model;

[0021] Figure 3 is Figure 2 Partial enlarged view at part A in

[0022] Figure 4 Schematic diagram of the three-dimensional structure of the connecting ring and the support frame of the present utility model;

[0023] Figure 5 Schematic diagram of the three-dimensional structure of the fixing ring and the limiting component of the present utility model.

[0024] Explanation of reference numerals: 1, sieve mesh; 2, support frame; 3, fixing ring; 4, connecting ring; 5, first annular groove; 6, second annular groove; 7, mounting block; 8, pull rod; 9, compression spring; 10, limiting ring; 11, wedge block; 12, first limiting hole; 13, second limiting hole; 14, limiting plate; 15, pull ring; 16, third annular groove; 17, corrugated section; 18, handle; 19, joint. Specific embodiments

[0025] The core of the present utility model is to provide a cell sieve, which can facilitate the disassembly and assembly of the sieve mesh, thereby facilitating the effective cleaning and maintenance of the sieve mesh and reducing the use cost of the cell sieve.

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] In a specific embodiment, as Figures 1 to 5As shown in the figure, it includes a screen 1, a support frame 2, and a fixing ring 3. A joint 19 for connecting a liquid receiving bottle for receiving filtered liquid is fixedly connected to the bottom surface of the fixing ring 3. The screen 1 is sleeved on the support frame 2, and there is a clearance between the support frame 2 and the inner wall of the fixing ring 3. A connecting ring 4 is fixedly connected to the top surface of the support frame 2. A first annular groove 5 is formed on the bottom surface of the connecting ring 4, and a second annular groove 6 is formed on the top surface of the fixing ring 3. The connecting ring 4 outside the first annular groove 5 is inserted into the second annular groove 6, and the fixing ring 3 inside the second annular groove 6 is inserted into the first annular groove 5. The top of the screen 1 is clamped and fixed by the fixing ring 3 and the inner top wall of the first annular groove 5. A limiting component is fixedly connected to the outer end of the fixing ring 3, and the limiting component is used to limit the connecting ring 4 and fix it on the fixing ring 3.

[0029] By sleeving the screen 1 on the support frame 2, in order to prevent the cell liquid to be filtered from flowing out, the bottom of the support frame 2 needs to extend into the liquid receiving bottle so that the bottom of the screen 1 is located inside the liquid receiving bottle. The connecting ring 4 fixedly connected to the top of the support frame 2 is snap-fitted and installed on the fixing ring 3. The outside of the connecting ring 4 is inserted into the second annular groove 6 of the fixing ring 3, and the connecting ring 4 is fixed on the fixing ring 3 through the limiting component. At the same time, by inserting the fixing ring 3 inside the second annular groove 6 into the first annular groove 5, the screen 1 located inside the first annular groove 5 is tightened and fixed on the inner top wall of the first annular groove 5. Thus, the fixing of the screen 1 can be realized, the disassembly and assembly of the screen 1 can be facilitated, and the effective cleaning and maintenance of the screen 1 can be facilitated. After the screen 1 is damaged, only the screen 1 needs to be replaced without replacing the whole, which reduces the use cost of the cell sieve.

[0030] In a specific embodiment, the number of the limiting components is two groups and they are symmetrically arranged. The limiting component includes a mounting block 7, a pull rod 8, a compression spring 9, a limiting ring 10, and a wedge block 11. The mounting block 7 is fixedly connected to the outer wall of the fixing ring 3. A first limiting hole 12 is horizontally penetrated through the mounting block 7. A second limiting hole 13 is formed on the fixing ring 3. One end of the second limiting hole 13 is coaxially communicated with the first limiting hole 12, and the other end is communicated with the second annular groove 6. The pull rod 8 is slidably connected in the first limiting hole 12 and the second limiting hole 13. One end of the pull rod 8 extends out of the mounting block 7. The compression spring 9 is sleeved on the pull rod 8 and one end is fixedly connected to the inner wall of the second limiting hole 13. The limiting ring 10 is fixedly connected to the outer wall of the bottom of the connecting ring 4. The wedge block 11 is fixedly connected to one end of the pull rod 8 and is fixedly connected to the other end of the compression spring 9. The limiting ring 10 is in transmission connection with the wedge block 11.

[0031] Through the settings of the mounting block 7, the pull rod 8, the compression spring 9, the limit ring 10 and the wedge block 11, during the process of buckling the connecting ring 4 onto the fixed ring 3, the limit ring 10 moves downward, driving the wedge block 11 to move into the second limiting hole 13, and at the same time compressing the compression spring 9. When the limit ring 10 moves below the wedge block 11, the wedge block 11 moves towards the second ring groove 6 under the action of the restoring force of the compression spring 9, thereby limiting the limit ring 10, and finally realizing the fixation of the connecting ring 4 on the fixed ring 3. When disassembling, only need to pull the pull rod 8 to drive the wedge block 11 to move into the second limiting hole 13, and then lift the connecting ring 4.

[0032] Specifically, the second limiting hole 13 is a rectangular hole, and the wedge block 11 and the pull rod 8 are fixedly connected through a limiting plate 14, and the limiting plate 14 is adapted to and slidably connected with the second limiting hole 13.

[0033] Through such settings, it can prevent the wedge block 11 and the pull rod 8 from rotating in the second limiting hole 13, thereby affecting the limiting and fixing effect on the connecting ring 4.

[0034] Specifically, a pull ring 15 is hinged to one end of the pull rod 8 extending out of the mounting block 7.

[0035] Through such settings, it is convenient to manually pull the pull rod 8 through the pull ring 15.

[0036] In a specific embodiment, the top of the support frame 2 is a cylinder and the bottom is hollowed out. A third ring groove 16 is provided on the outer wall of the cylinder of the support frame 2, and the sieve mesh 1 is wound and fixed in the third ring groove 16 through one of a rubber band, a rope or a wire.

[0037] Through such settings, it can further fix the middle part of the sieve mesh 1 and prevent the sieve mesh 1 from falling off during filtration.

[0038] Specifically, the connection part between the inner wall of the third ring groove 16 and the outer wall of the cylinder of the support frame 2 is rounded.

[0039] Through such settings, it can prevent damage to the sieve mesh 1.

[0040] In a specific embodiment, the top wall of the inner part of the first ring groove 5 and the top surface of the fixed ring 3 in the first ring groove 5 are both provided with mutually fitting corrugated sections 17.

[0041] Through such settings, it can improve the clamping effect of the top surface of the fixed ring 3 and the top wall of the inner part of the first ring groove 5 on the top of the sieve mesh 1 and avoid the sieve mesh 1 from falling off.

[0042] In a specific embodiment, two handles 18 are fixedly connected to the top surface of the connecting ring 4, and the two handles 18 are arranged oppositely.

[0043] By setting it in this way, when the screen 1 is disassembled and cleaned, it is convenient to hold the handle 18 and lift the connecting ring 4 upward.

[0044] Working principle of the present utility model: When the present utility model is in use, first connect the fixed ring 3 to the liquid receiving bottle through the joint 19, put the screen 1 on the support frame 2, then use a rubber band to wind and fix the middle part of the screen 1 in the third ring groove 16, pass the support frame 2 through the fixed ring 3 and insert it into the liquid receiving bottle. At the same time, insert the outer end of the connecting ring 4 into the second ring groove 6, and insert the inner end of the fixed ring 3 into the first ring groove 5, clamping the top of the screen 1 between the inner top wall of the first ring groove 5 and the top surface of the fixed ring 3, so as to buckle the connecting ring 4 on the fixed ring 3. During this process, the limit ring 10 moves downward following the connecting ring 4, driving the wedge block 11 to move into the second limit hole 13, and at the same time compressing the compression spring 9. When the limit ring 10 moves below the wedge block 11, the wedge block 11 moves towards the second ring groove 6 under the action of the restoring force of the compression spring 9, so as to limit the limit ring 10, and finally realize the fixation of the connecting ring 4 on the fixed ring 3. When disassembling, just pull the pull rod 8 through the pull ring 15, drive the wedge block 11 to move into the second limit hole 13, and then lift the connecting ring 4 through the handle 18. The present utility model can make the disassembly and assembly of the screen 1 convenient, and thus can facilitate the effective cleaning and maintenance of the screen 1, reducing the use cost of the cell sieve.

[0045] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0046] The above-described embodiments are only used to describe the preferred mode of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. A cell sieve, characterized in that: It includes a screen (1), a support frame (2), and a fixing ring (3). A connector (19) is fixedly connected to the bottom surface of the fixing ring (3). The screen (1) is sleeved on the support frame (2), and there is a clearance between the support frame (2) and the inner wall of the fixing ring (3). A connecting ring (4) is fixedly connected to the top surface of the support frame (2). A first annular groove (5) is formed on the bottom surface of the connecting ring (4), and a second annular groove (6) is formed on the top surface of the fixing ring (3). The connecting ring (4) outside the first annular groove (5) is inserted into the second annular groove (6), and the fixing ring (3) inside the second annular groove (6) is inserted into the first annular groove (5). The top of the screen (1) is clamped and fixed by the fixing ring (3) and the inner top wall of the first annular groove (5). A limiting component is fixedly connected to the outer end of the fixing ring (3), and the limiting component is used to limit the connecting ring (4) and fix it on the fixing ring (3).

2. The cell sieve according to claim 1, characterized in that: The number of the limiting components is two and they are symmetrically arranged. The limiting component includes a mounting block (7), a pull rod (8), a compression spring (9), a limiting ring (10), and a wedge block (11). The mounting block (7) is fixedly connected to the outer wall of the fixing ring (3). A first limiting hole (12) is horizontally penetrated through the mounting block (7). A second limiting hole (13) is formed on the fixing ring (3). One end of the second limiting hole (13) is coaxially communicated with the first limiting hole (12), and the other end is communicated with the second annular groove (6). The pull rod (8) is slidably connected in the first limiting hole (12) and the second limiting hole (13). One end of the pull rod (8) extends out of the mounting block (7). The compression spring (9) is sleeved on the pull rod (8) and one end is fixedly connected to the inner wall of the second limiting hole (13). The limiting ring (10) is fixedly connected to the outer wall of the bottom of the connecting ring (4). The wedge block (11) is fixedly connected to one end of the pull rod (8) and is fixedly connected to the other end of the compression spring (9). The limiting ring (10) is in transmission connection with the wedge block (11).

3. The cell sieve according to claim 2, wherein: The second limiting hole (13) is a rectangular hole. The wedge block (11) and the pull rod (8) are fixedly connected through a limiting plate (14). The limiting plate (14) is adapted to and slidably connected with the second limiting hole (13).

4. The cell sieve according to claim 2, wherein: A pull ring (15) is hinged to one end of the pull rod (8) extending out of the mounting block (7).

5. The cell sieve according to claim 1, wherein: The top of the support frame (2) is a cylinder and the bottom is hollowed out. A third annular groove (16) is formed on the outer wall of the cylinder of the support frame (2). The screen (1) is wound and fixed in the third annular groove (16) by one of a rubber band, a rope or a wire.

6. The cell sieve according to claim 5, wherein: The connection part between the inner wall of the third annular groove (16) and the outer wall of the cylinder of the support frame (2) is rounded off.

7. The cell sieve according to claim 1, wherein: Corresponding corrugated sections (17) are formed on the inner top wall of the first annular groove (5) and the top surface of the fixing ring (3) inside the first annular groove (5).

8. The cell sieve according to claim 1, wherein: Two handles (18) are fixedly connected to the top surface of the connecting ring (4), and the two handles (18) are arranged oppositely.

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