A laboratory filtration device

Abstract

The utility model relates to the field of filtering device especially, and more particularly to a laboratory filtering device. The utility model provides a laboratory filtering device, including base, mounting bracket, gear ring, connecting frame, first motor, rotating stand, blanking ring and electronic valve etc. The mounting bracket is fixedly connected on the base, the gear ring is rotatably connected on the upper portion of mounting bracket, the connecting frame is fixedly connected on the rear side of gear ring, the first motor is installed in the connecting frame, the rotating stand is connected with the output shaft of first motor through the shaft coupling, the blanking ring is installed on the left and right sides of rotating stand and is symmetrically arranged, and the electronic valve is installed on the lower side of each blanking ring. The first motor is arranged to drive the rotating stand to rotate to accurately align different blanking rings and filter screen, the orderly and independent sampling of various liquids is realized, and cross contamination is avoided. The gear and gear ring are engaged through the second motor, the connecting frame is driven to rotate to replace the collecting ring station, and the classification collection of filtrate is realized.

Description

Technical Field

[0001] This utility model relates to the field of filtration devices, and more particularly to a laboratory filtration device. Background Technology

[0002] In laboratory work in fields such as chemistry, biology, pharmaceuticals, environmental monitoring, and materials science, filtration is a fundamental and frequently performed operation. Its main purpose is to separate solid particles, microorganisms, and insoluble matter from liquid mixtures, or to clarify, sterilize, and decolorize different liquids to meet the needs of subsequent analysis, culture, or preparation.

[0003] Traditional laboratory filtration devices, such as gravity filtration using ordinary funnels and filter paper, vacuum filtration using Buchner funnels and suction flasks, or single-pass filtration using syringe filters, are typically designed for processing a single sample. When experiments require parallel filtration of multiple liquid samples of different types or sources, the conventional practice is to use multiple independent filtration devices sequentially, which cannot filter multiple liquids simultaneously.

[0004] Therefore, this utility model provides a laboratory filtration device to solve the above-mentioned technical problems. Utility Model Content

[0005] To overcome the shortcomings of traditional filtration devices, which are mostly designed for single samples and cannot process multiple liquids simultaneously, this invention provides a laboratory filtration device.

[0006] The technical solution of this utility model is as follows: a laboratory filtration device, comprising a base, a mounting frame, a gear ring, a connecting frame, a first motor, a rotating frame, a feeding ring, an electronic valve, a first mounting plate, a second motor, a gear, a placement frame, filter screens, and a rotating ring. The mounting frame is fixedly connected to the base. A gear ring is rotatably connected to the upper part of the mounting frame. A connecting frame is fixedly connected to the rear side of the gear ring. The first motor is installed inside the connecting frame. The output shaft of the first motor is connected to the rotating frame via a coupling. Feeding rings are symmetrically installed on the left and right sides of the rotating frame. An electronic valve is installed on the lower side of each feeding ring. A first mounting plate is fixedly connected to the upper part of the mounting frame. A second motor is installed inside the first mounting plate. The output shaft of the second motor is connected to a gear via a coupling. The gear meshes with the gear ring. A placement frame is placed inside the mounting frame, and multiple filter screens are placed inside the placement frame. A rotating ring is rotatably connected to the upper part of the base.

[0007] Furthermore, it also includes a collection ring, a second mounting plate, and a guide ring. Multiple collection rings are placed on the upper part of the rotating ring, and multiple second mounting plates are fixedly connected to the upper part of the rotating ring. A guide ring is installed between every two second mounting plates, and the bottom of each guide ring is located directly above the opening of the corresponding collection ring.

[0008] Furthermore, it also includes a protective shell, which is fixedly connected to the bottom of the top of the connecting frame.

[0009] Furthermore, it also includes a pull rod, which is fixedly connected to the middle of the upper part of the placement rack.

[0010] Furthermore, the number of collection rings is no less than eight.

[0011] Furthermore, the size of the multiple filters is designed to fit the interior of the rack.

[0012] Compared with the prior art, the present invention has the following advantages: 1. By setting a first motor to drive the rotating frame to rotate to accurately align different feeding rings and filter screens, the orderly and independent sampling of various liquids is realized, avoiding cross-contamination; by setting a second motor to drive the gear and gear ring to mesh, the connecting frame is rotated to change the collection ring station, realizing the classified collection of filtrate.

[0013] 2. The second mounting plate provides precise positioning and stable support for the collection ring and guide ring, ensuring coaxial alignment between the flow path and the collection container, thus improving the accuracy and sealing of filtrate transfer; the lifting and lowering of the placement rack is controlled by a pull rod, enabling rapid opening and closing of the filter screen installation position. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is an exploded view of the base and mounting bracket of this utility model.

[0016] Figure 3 This is a cross-sectional view of the protective shell of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the first mounting plate, the second motor, and gears of this utility model.

[0018] In the attached diagram: 1_base, 2_mounting bracket, 3_gear ring, 301_connecting bracket, 4_first motor, 5_rotating bracket, 6_feeding ring, 7_electronic valve, 8_first mounting plate, 9_second motor, 10_gear, 11_placement bracket, 12_filter screen, 13_rotating ring, 14_collecting ring, 15_second mounting plate, 16_guide ring, 17_protective shell, 18_pull rod. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0020] Example: A laboratory filtration device, such as Figures 1-4 As shown, the device includes a base 1, a mounting bracket 2, a gear ring 3, a connecting bracket 301, a first motor 4, a rotating bracket 5, a feeding ring 6, an electronic valve 7, a first mounting plate 8, a second motor 9, a gear 10, a placement rack 11, a filter screen 12, a rotating ring 13, a collecting ring 14, a second mounting plate 15, a guide ring 16, a protective shell 17, and a pull rod 18. The mounting bracket 2 is fixedly connected to the base 1. The gear ring 3 is rotatably connected to the upper part of the mounting bracket 2. The connecting bracket 301 is fixedly connected to the rear side of the gear ring 3. An internal first motor 4 is installed, which drives the rotating frame 5 to rotate. The output shaft of the first motor 4 is connected to the rotating frame 5 via a coupling. Feeding rings 6 are symmetrically fixed to the left and right sides and front and back of the rotating frame 5. The feeding rings 6 are used to hold liquid mixtures. An electronic valve 7 is installed on the lower side of each feeding ring 6, which is used to open or close the opening of the feeding ring 6. A first mounting plate 8 is fixedly connected to the upper part of the mounting frame 2. A second motor 9 is installed inside the first mounting plate 8, which drives the connecting frame 301 to rotate. The output shaft of the second motor 9 is connected to a gear 10 via a coupling. The gear 10 meshes with a gear ring 3. A placement frame 11 is placed inside the mounting frame 2. Multiple filter screens 12 are placed inside the placement frame 11. The filter screens 12 can effectively filter out microorganisms, insoluble matter, etc. The size design of the multiple filter screens 12 is adapted to the interior of the placement frame 11. A rotating ring 13 is rotatably connected to the upper part of the base 1. Multiple collection rings 14 are placed on the upper part of the rotating ring 13. The collection rings 14 are used to collect the filtered liquid. The number of collection rings 14 is not less than eight. Multiple second mounting plates 15 are fixedly connected to the upper part of the rotating ring 13. A guide ring 16 is installed between every two second mounting plates 15. The guide ring 16 can guide the filtered liquid into the collection ring 14. The bottom of each guide ring 16 is located directly above the opening of the corresponding collection ring 14. A protective shell 17 is fixedly connected to the lower side of the top of the connecting frame 301. The protective shell 17 is used to protect the first motor 4. A pull rod 18 is fixedly connected to the middle of the upper part of the placement frame 11.

[0021] When using this device, the operator first places each collection ring 14 between the corresponding two second mounting plates 15. Then, the guide ring 16 is installed between the corresponding two second mounting plates 15, ensuring its bottom aperture aligns with the opening of the collection ring 14 below. Next, the pulling rod 18 is pulled upwards to lift the placement rack 11 off the mounting frame 2. Then, the filter screens 12 are placed one by one in the designated positions on the placement rack 11. Finally, the placement rack 11 is placed on top of the mounting frame 2, and the pulling rod 18 is released. When filtering multiple liquid mixtures, the operator pours different types of liquid mixtures into the corresponding feeding rings 6. Then, the first motor 4 is started, and the output shaft of the first motor 4 drives the rotating frame 5 to rotate, moving the feeding ring 6 containing the liquid to be filtered directly above the filter screen 12. The first motor 4 is then turned off, and the feeding ring 6 is turned on. The electronic valve 7 corresponding to ring 6 allows the liquid mixture to flow through the filter screen 12. The filtered liquid flows along the guide ring 16 into the collection ring 14 below it. After the liquid is completely filtered, the electronic valve 7 is closed. Then, the second motor 9 is started. The output shaft of the second motor 9 drives the gear 10 to rotate, which in turn drives the gear ring 3 to rotate. The gear 10 meshes with the gear ring 3, thereby driving the connecting frame 301 to rotate. When the feeding ring 6 is above the filter screen 12, the second motor 9 is closed. Then, the first motor 4 is started again. The output shaft of the first motor 4 drives the rotating frame 5 to rotate, so that the feeding ring 6 containing the next liquid to be filtered moves directly above the filter screen 12. Then, the first motor 4 is closed. Next, the electronic valve 7 corresponding to the feeding ring 6 is opened. The above steps are repeated to perform a new round of filtration. After all the liquid mixtures are filtered, the collected filtrate can be used for experimental analysis.

[0022] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Therefore, all equivalent changes made based on the content of the claims of the present utility model should be included within the scope of the claims of the present utility model.

Claims

1. A laboratory filtration device, characterized in that: The system includes a base (1), a mounting bracket (2), a gear ring (3), a connecting bracket (301), a first motor (4), a rotating bracket (5), a feeding ring (6), an electronic valve (7), a first mounting plate (8), a second motor (9), a gear (10), a placement bracket (11), a filter screen (12), and a rotating ring (13). The mounting bracket (2) is mounted on the base (1). The gear ring (3) is rotatably connected to the upper part of the mounting bracket (2). The connecting bracket (301) is connected to the rear side of the gear ring (3). The first motor (4) is installed inside the connecting bracket (301). The output shaft of the first motor (4) is connected to a coupling. A rotating frame (5) is connected. Feeding rings (6) are symmetrically installed on the left and right sides of the rotating frame (5). An electronic valve (7) is installed on the lower side of each feeding ring (6). A first mounting plate (8) is installed on the upper part of the mounting frame (2). A second motor (9) is installed inside the first mounting plate (8). The output shaft of the second motor (9) is connected to a gear (10) through a coupling. The gear (10) meshes with the gear ring (3). A placement frame (11) is placed inside the mounting frame (2). Multiple filter screens (12) are placed inside the placement frame (11). A rotating ring (13) is rotatably connected to the upper part of the base (1).

2. The laboratory filtration device as described in claim 1, characterized in that: It also includes a collection ring (14), a second mounting plate (15) and a guide ring (16). Multiple collection rings (14) are placed on the upper part of the rotating ring (13), and multiple second mounting plates (15) are installed on the upper part of the rotating ring (13). A guide ring (16) is connected between every two second mounting plates (15), and the bottom of each guide ring (16) is located directly above the opening of the corresponding collection ring (14).

3. A laboratory filtration device as described in claim 2, characterized in that: It also includes a protective shell (17), and the protective shell (17) is connected to the lower side of the top of the connecting frame (301).

4. A laboratory filtration device as described in claim 3, characterized in that: It also includes a pull rod (18), which is provided in the middle of the upper part of the placement rack (11).

5. A laboratory filtration device as described in claim 4, characterized in that: The number of collection rings (14) shall not be less than eight.

6. A laboratory filtration device as described in claim 5, characterized in that: The size design of the multiple filters (12) is adapted to the interior of the rack (11).

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