Pressurizing and filtering device for cell sieve

Abstract

The utility model relates to the technical field of cell filtration, in particular to a cell sieve pressurizing and filtering device which comprises a filtering tank with a liquid injection pipe, the top of the filtering tank is communicated with a pressurizing pipe, a sliding rod is connected in the pressurizing pipe in a sliding manner, a piston is fixed at the bottom of the sliding rod, a mounting frame is fixed in the filtering tank, and the mounting frame is connected with the pressurizing pipe in a sliding manner. A filter screen is mounted and dismounted in the mounting frame, the driving part is used for driving the sliding rod to lift and slide, and the mounting and dismounting part is used for mounting and dismounting the filter screen. According to the utility model, automatic pressurizing and filtering can be realized, so that the problem that manual pressurizing wastes time and labor in the prior art is solved, the use effect is improved, and the filter screen can be limited and mounted in the mounting frame, so that the moving range of the filter screen is limited, and the filter screen is always arranged in the mounting frame to shake up and down by utilizing inertia when being in contact with a cell extracting solution; therefore, the filter screen cannot deviate to influence the filtering performance during filtering.

Description

Technical Field

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

[0002] The process of separating cells or filtering impurities by cell sieve is to make cells into a suspension, and then select cell sieves with different pore sizes to separate and obtain a single cell suspension suitable for the experiment. That is, the cell suspension or other suspension is poured into the cell sieve. Impurities or cells that are too large cannot pass through the cell sieve and remain on it, while cells or other components smaller than the pore size of the cell sieve pass through the cell sieve, thus obtaining a single suspension.

[0003] An existing patent (publication number: CN214781812U) discloses a peripheral blood stem cell screening and filtration device, comprising a support and a shake bottle, the shake bottle being rotatably connected to the support, the shake bottle being provided with a liquid adding component, the bottom end of the shake bottle being provided with a liquid outlet, and the shake bottle being provided with a filter component, the filter component being a filter screen, which is placed at the inner bottom of the shake bottle. The prior art requires manual pressure application, which is laborious and results in poor performance. Furthermore, the cells are filtered through a filter screen, which is placed directly in the shake bottle for easy cleaning. However, during shaking, the filter screen is prone to shaking and deviating, making it unstable and thus affecting its filtration performance. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the filter device in the prior art needs to be manually pressurized, which is time-consuming and labor-intensive, and the filter screen is prone to shaking and deviating during the filtration process, affecting the filtration performance, and to propose a cell sieve pressurized filtration device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A cell sieve pressurized filtration device comprises a filter tank with an injection tube, the top of the filter tank is connected to a pressurized tube, a slide rod is slidably connected to the inside of the pressurized tube, a piston is fixed to the bottom of the slide rod, a mounting frame is fixed to the inside of the filter tank, and a filter screen is detachably mounted inside the mounting frame;

[0007] Also includes:

[0008] A driving member, the driving member is used to drive the slide bar to rise and slide;

[0009] The assembling and disassembling parts are used for assembling and disassembling the filter screen.

[0010] Preferably, the driving member comprises:

[0011] a sleeve frame, the sleeve frame being fixed on the boost pipe;

[0012] a support column, the support column being fixed on the sleeve frame;

[0013] a mounting seat, the mounting seat being fixed to the side wall of the pillar;

[0014] a motor, wherein the motor is fixed on the mounting seat;

[0015] A transmission rod, the transmission rod being fixed to the output end of the motor;

[0016] a turntable, the turntable being fixed on the transmission rod;

[0017] a convex rod, the convex rod being fixed on the turntable;

[0018] A connecting rod, wherein opposite sides of the connecting rod are respectively hinged on the protruding rod and the sliding rod.

[0019] Preferably, the piston slides in close contact with the boost pipe.

[0020] Preferably, the loading and unloading parts include:

[0021] A support plate, the support plate being fixed to the bottom surface of the mounting frame, wherein a plurality of support plates are provided and the support plates are distributed in a circular array;

[0022] a spring fixed to the top surface of the support plate;

[0023] A fixing rod, the fixing rod being fixed to the top surface of the support plate, the spring being sleeved with the fixing rod;

[0024] A screw groove, the screw groove being provided at the end of the fixing rod;

[0025] The nut is rotatably sleeved on the fixing rod, and the interior of the nut is provided with an external thread that matches the screw groove.

[0026] Preferably, a through hole for plugging with the insertion rod is provided inside the filter screen.

[0027] Preferably, the circular diameter of the through hole is larger than the circular diameter of the fixing rod, and the circular diameter of the through hole is smaller than the circular diameter of the spring.

[0028] Compared with the prior art, the present invention has the following advantages:

[0029] 1. The utility model can realize automatic pressurization and filtration, thereby solving the problem of time-consuming and labor-intensive manual pressurization in the prior art and improving the use effect.

[0030] 2. The utility model can install the filter in the installation frame. When the filter contacts the cell extract, it always swings up and down in the installation frame by inertia, so that the filter will not deviate during filtration and affect the filtering performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of a cell sieve pressurized filtration device proposed by the present invention;

[0032] Figure 2 This is a schematic diagram of the overall vertical cross-sectional structure of a cell sieve pressurized filtration device proposed by the present invention;

[0033] Figure 3 This is a schematic diagram of the overall structure of some components of a cell sieve pressurized filtration device proposed by the present invention;

[0034] Figure 4 This is a schematic diagram of the overall horizontal cross-sectional structure of a cell sieve pressurized filtration device proposed by the present invention.

[0035] In the picture:

[0036] 1. Filter tank; 2. Liquid injection pipe; 3. Booster pipe; 4. Sliding rod; 41. Sleeve; 42. Pillar; 43. Mounting seat; 44. Motor; 45. Transmission rod; 46. Turntable; 47. Protruding rod; 48. Connecting rod; 5. Piston; 6. Mounting frame; 61. Support plate; 62. Spring; 63. Fixing rod; 64. Screw groove; 65. Nut; 7. Filter screen; 71. Through hole. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] Reference Figures 1-4 A cell sieve pressurized filtration device comprises a filter tank 1 with an injection tube 2, a pressurized tube 3 is connected to the top of the filter tank 1, a slide rod 4 is slidably connected to the inside of the pressurized tube 3, a piston 5 is fixed to the bottom of the slide rod 4, a mounting frame 6 is fixed to the inside of the filter tank 1, and a filter screen 7 is detachably mounted inside the mounting frame 6;

[0039] A cell sieve pressurized filtration device further comprises a driving part and a loading and unloading part. The driving part is used to drive the slide rod 4 to rise and slide, and the loading and unloading part is used to load and unload the filter screen 7.

[0040] In this embodiment, Figure 1 or Figure 2As shown, the driving member includes a sleeve 41 fixed on the boost pipe 3, a pillar 42 fixed on the sleeve 41, a mounting base 43 fixed on the side wall of the pillar 42, a motor 44 fixed on the mounting base 43, a transmission rod 45 fixed on the output end of the motor 44, a turntable 46 fixed on the transmission rod 45, a protruding rod 47 fixed on the turntable 46, and also includes a connecting rod 48. The connecting rod 48 is hinged on the protruding rod 47 and the slide rod 4 on opposite sides respectively. The protruding rod 47 and the connecting rod 48 transmit the power of the turntable 46 to the slide rod 4.

[0041] In this embodiment, Figure 2 or Figure 3 As shown, the piston 5 slides in contact with the boost pipe 3. This design ensures good sealing to prevent gas leakage, and the reciprocating movement of the slide rod 4 in the vertical direction allows the piston 5 to slide in the vertical direction, making the piston 5 stable during the sliding process and preventing it from deflecting or swinging.

[0042] In this embodiment, Figure 2 、 Figure 3 or Figure 4 As shown, the loading and unloading parts include a support plate 61, a spring 62, a fixing rod 63, a screw groove 64 and a nut 65. The support plate 61 is fixed to the bottom surface of the mounting frame 6. There are multiple support plates 61, and the support plates 61 are distributed in a circular array. This design can ensure that the filter screen 7 can be evenly distributed when subjected to force, thereby improving the overall stability and load-bearing capacity. The spring 62 is fixed to the top surface of the support plate 61. The spring 62 has a certain elasticity and recovery property. It can deform after being subjected to force and return to its original state after the external force disappears, so that the filter screen 7 uses inertia to generate shaking when it contacts the cell extract, and the spring 62 is used to make the filter screen 7 shake back and forth and then shake and filter it. The fixing rod 63 is fixed to the top surface of the support plate 61, and the spring 62 is sleeved on the fixing rod 63. The screw groove 64 is opened at the end of the fixing rod 63. The nut 65 is rotatably sleeved on the fixing rod 63. The interior of the nut 65 is provided with an external thread that cooperates with the screw groove 64.

[0043] In this embodiment, Figure 2 、 Figure 3 or Figure 4 As shown, a through hole 71 for plugging with the insertion rod is provided inside the filter screen 7. The design of the insertion rod allows the filter screen 7 to be easily aligned and inserted while ensuring that the filter screen 7 will not be misplaced or tilted during installation.

[0044] In this embodiment, Figure 2 、 Figure 3 or Figure 4As shown, the circular diameter of the through hole 71 is larger than the circular diameter of the fixing rod 63 to ensure that the fixing rod 63 can be easily inserted into the through hole 71, while allowing a certain gap to accommodate the compression and recovery of the spring 62. The circular diameter of the through hole 71 is smaller than the circular diameter of the spring 62 to ensure that the spring 62 does not fall into the through hole 71 during installation, but can be tightly wrapped around the fixing rod 63 and provide sufficient elastic force to fix the filter 7.

[0045] The functional principle of this utility model can be explained through the following operation modes:

[0046] When using the device, first install the filter 7 in the installation frame 6, align the through hole 71 of the filter 7 with the insertion rod, and then insert the filter 7 into the insertion rod. At this time, the filter 7 is on the top surface of the spring 62. Then, the nut 65 is rotated and sleeved on the fixing rod 63 and moved along the fixing rod 63 until it is tightly fitted with the screw groove 64, thereby limiting the range of movement of the filter 7 so that the filter 7 will not deviate during filtration. Then, the cell extract is injected through the injection tube 2, and the motor 44 is started to drive the transmission rod 45 to drive the turntable 46 to rotate. When the turntable 46 rotates, the convex rod 47 on its surface rotates and shifts, and the connecting rod 48 hinged to it swings and drives the slide rod 4 to slide back and forth in the vertical direction in the boosting pipe 3. The piston 5 at its bottom slides vertically along the inner wall of the boosting pipe 3, thereby pressurizing the cell extract in the filter tank 1. Due to the reciprocating motion of the piston 5, the pressure in the filter tank 1 changes periodically, which helps the cell extract to be filtered through the filter screen 7, thereby separating solid particles and liquid, and completing the filtration operation.

[0047] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cell sieve pressure-boosting filtration device, comprising a filter tank (1) with a liquid injection tube (2), characterized in that: The top of the filter tank (1) is connected to a boost pipe (3), the inside of the boost pipe (3) is slidably connected to a slide rod (4), the bottom of the slide rod (4) is fixed with a piston (5), the inside of the filter tank (1) is fixed with a mounting frame (6), and the inside of the mounting frame (6) is provided with a detachable filter screen (7); Also includes: A driving member, the driving member is used to drive the slide bar (4) to rise and fall and slide; A loading and unloading part, wherein the loading and unloading part is used for loading and unloading the filter screen (7).

2. A cell sieve pressurized filtration device according to claim 1, characterized in that: The driving member includes: A sleeve frame (41), wherein the sleeve frame (41) is fixed on the boost pipe (3); A support (42), wherein the support (42) is fixed on the sleeve (41); A mounting seat (43), the mounting seat (43) being fixed to a side wall of the pillar (42); a motor (44), the motor (44) being fixed on the mounting seat (43); A transmission rod (45), the transmission rod (45) being fixed to the output end of the motor (44); a rotating disk (46), wherein the rotating disk (46) is fixed on the transmission rod (45); a convex rod (47), wherein the convex rod (47) is fixed on the rotating disk (46); A connecting rod (48), wherein opposite sides of the connecting rod (48) are hinged to the protruding rod (47) and the sliding rod (4) respectively.

3. The cell sieve pressurized filtration device according to claim 1, characterized in that: The piston (5) and the boost pipe (3) fit and slide.

4. The cell sieve pressurized filtration device according to claim 1, characterized in that: The loading and unloading parts include: A support plate (61), the support plate (61) being fixed to the bottom surface of the mounting frame (6), a plurality of support plates (61) being provided, and the support plates (61) being distributed in a circular array; a spring (62), wherein the spring (62) is fixed to the top surface of the support plate (61); A fixing rod (63), the fixing rod (63) being fixed to the top surface of the support plate (61), and the spring (62) being sleeved with the fixing rod (63); a screw groove (64), the screw groove (64) being provided at the end of the fixing rod (63); A nut (65) is rotatably sleeved on the fixing rod (63), and an external thread that matches the screw groove (64) is provided inside the nut (65).

5. The cell sieve pressurized filtration device according to claim 1, characterized in that: The filter screen (7) is provided with a through hole (71) inside for plugging into the plug rod.

6. The cell sieve pressurized filtration device according to claim 5, characterized in that: The circular diameter of the through hole (71) is larger than the circular diameter of the fixing rod (63), and the circular diameter of the through hole (71) is smaller than the circular diameter of the spring (62).

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