Porous filter plate for nucleic acid synthesis

Abstract

The porous filter plate comprises a filter outer frame body and a filter plate body, an opening is formed in one end of the filter outer frame body, a first limiting sliding groove is formed in the top in the filter outer frame body, the filter plate body is transversely inserted into the first limiting sliding groove, and a second limiting sliding groove is formed in the inner wall, beside the opening, of the filter outer frame body. According to the filter plate disclosed by the utility model, the first limiting sliding groove is formed in the top in the filter outer frame body, and the filter plate body is transversely inserted into the first limiting sliding groove, so that the filter plate body can be transversely inserted and limited conveniently; a second limiting sliding groove is formed in the inner wall of the opening of the filtering outer frame body, and a filtering plate limiting baffle is longitudinally inserted into the second limiting sliding groove and used for limiting one end, inserted into the first limiting sliding groove, of the filtering plate body, so that the stability of inserting and fixing of the filtering plate body is high, and dismounting and mounting are convenient and rapid.

Description

Technical Field

[0001] The utility model relates to the technical field of nucleic acid synthesis filter plates, in particular to a porous filter plate for nucleic acid synthesis. Background Art

[0002] In biochemical and pharmaceutical experiments such as protein purification, nucleic acid preparation, and new drug screening, especially in solid phase extraction, component purification, magnetic bead analysis, or product recovery, microporous filter plates are often used for filtration, cleaning, or filtration recovery. The filter part of existing porous filter plates is mostly an integrated structure with the frame, which is very difficult to clean and affects secondary use.

[0003] A nucleic acid synthesis plate with filter holes in the prior art with application number 202222629053.2 comprises a synthesis plate frame and a nucleic acid synthesis plate. A filter cavity is arranged inside the synthesis plate frame, an inner groove is arranged at the end of the filter cavity, a positioning cylinder is arranged inside the cylindrical groove, a spring member is sleeved on the positioning cylinder, and when the cylindrical cross bar moves outward, one end of the cylindrical cross bar drives the shorter end of the elastic V-shaped clamp to fit with the other end thereof, so that the shorter end of the elastic V-shaped clamp is pulled to align with the inner side of the limiting groove. When the nucleic acid synthesis plate is removed from the synthesis plate frame, the rebound force of the spring member pushes the lifting ring to move upward on the positioning cylinder, thereby pushing the nucleic acid synthesis plate out of the filtering cavity provided in the synthesis plate frame, so that the nucleic acid synthesis plate can be taken out from the synthesis plate frame more easily and effortlessly. At the same time, the problem in the comparative document that the synthesis plate is prone to friction with the inner wall of the frame when taking and placing the synthesis plate, causing collision damage to the test tube on the synthesis column is solved. However, the stability of the filter plate is low, and it is inconvenient to disassemble and use. At the same time, it is not convenient to clean the filter hole and the inner wall of the filter tube. Utility Model Content

[0004] The utility model aims to provide a porous filter plate for nucleic acid synthesis to solve the problems in the prior art that the filter plate has low stability in insertion and fixing, is inconvenient to disassemble and use, and is inconvenient to clean the filter holes and the inner wall of the filter tube.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a porous filter plate for nucleic acid synthesis, comprising a filter outer frame and a filter plate body, an opening being provided at one end of the filter outer frame, a first limiting slide groove being provided at the inner top of the filter outer frame, and the filter plate body being laterally inserted in the first limiting slide groove, a second limiting slide groove being provided on the inner wall of the filter outer frame beside the opening, and a filter plate limiting baffle being longitudinally inserted in the second limiting slide groove, and a filter plate cleaning mechanism being provided on the outer side of the filter outer frame through a support frame for sliding.

[0006] Furthermore, a plurality of filter holes are provided inside the filter plate body, and a filter tube is provided below the filter holes, and a cavity at the bottom of the filter outer frame is larger than the sum of the thicknesses of the filter plate body and the filter tube.

[0007] Furthermore, the filter plate limiting baffle is vertically arranged between the filter plate body, and a protrusion is provided on one side of the upper end of the filter plate limiting baffle.

[0008] Furthermore, the two ends of the support frame are fixedly arranged on the outside of the filter outer frame through support plates, and two support frames are arranged in parallel. A longitudinal vertical rod is slidably arranged on the outside of the support frame through a limit slider.

[0009] Furthermore, the filter plate cleaning mechanism includes a transverse cleaning plate, both ends of which are slidably arranged with the upper part of the longitudinal vertical rod through a connecting seat, and a plurality of cleaning rods are rotatably arranged inside the transverse cleaning plate through bearings, the lower end of the cleaning rod is provided with cleaning bristles, and the upper side of the cleaning rod is connected to an adjustment handle through a gear set transmission.

[0010] Furthermore, the gear set includes a first driven gear arranged at one end of the cleaning rod, and a plurality of first driven gears are connected to a driving gear through a second driven gear transmission, and the adjustment handle is fixedly arranged on a transmission shaft on the upper part of the driving gear.

[0011] Furthermore, a first locking bolt is disposed on the outer side of the connecting seat, and a second locking bolt is disposed on the outer side of the limiting sliding block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides a first limiting slot on the top of the filter outer frame, and the filter plate body is transversely inserted in the first limiting slot, so that it is convenient to perform transverse insertion and limiting processing on the filter plate body. The first limiting slot is set as a U-shaped slot, which can surround and fix the three sides of the outside of the filter plate body, and the positioning stability is relatively high. In addition, a second limiting slot is provided on the inner wall of the opening of the filter outer frame, and a filter plate limiting baffle is longitudinally inserted in the second limiting slot, which is used to limit one end of the filter plate body inserted in the first limiting slot, so that the filter plate body has high insertion and fixing stability, and is convenient and quick to disassemble.

[0014] 2. The utility model also provides a filter plate cleaning mechanism on the outside of the filter outer frame body through sliding support frame, the filter plate cleaning mechanism includes a transverse cleaning plate, both ends of the transverse cleaning plate are slidably arranged with the upper part of the longitudinal vertical rod through a connecting seat, and a plurality of cleaning rods are rotatably arranged inside the transverse cleaning plate through a bearing, a cleaning bristle is provided at the lower end of the cleaning rod, and an adjusting handle is connected to the upper side of the cleaning rod through a gear set transmission, so that the cleaning rod can be moved and inserted into the filter holes and filter tubes in different arrangements in turn, and then the cleaning rod is rotated and adjusted by the adjusting handle and the gear set, so that the filter holes and the inner wall of the filter tube can be cleaned, the cleaning efficiency is high, and the operation is convenient and quick.

[0015] 3. In the utility model, both ends of the support frame are fixedly arranged on the outside of the filter outer frame through support plates, and two support frames are arranged in parallel. A longitudinal vertical rod is slidably arranged on the outside of the support frame through a limit slider. Both ends of the transverse cleaning plate are slidably arranged with the upper part of the longitudinal vertical rod through a connecting seat, so that the transverse cleaning plate can be slidably installed on the filter outer frame, so that the transverse cleaning plate can be moved to different filter holes for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a top view of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the outer frame structure of the utility model without the filter plate cleaning mechanism installed;

[0019] Figure 3 This is a schematic diagram of the structure of the filter plate body of the utility model;

[0020] Figure 4 This is a front view of the transverse cleaning plate structure of the utility model.

[0021] In the figure: 1. filter outer frame; 2. opening; 3. second limit slide; 4. filter plate limit baffle; 5. protrusion; 6. first limit slide; 7. filter plate body; 8. filter hole; 9. filter tube; 10. support frame; 11. support plate; 12. limit slide block; 13. second locking bolt; 14. longitudinal vertical rod; 15. connecting seat; 16. first locking bolt; 17. cleaning rod; 18. first driven gear; 19. second driven gear; 20. driving gear; 21. adjustment handle; 22. transverse cleaning plate; 23. cleaning bristles. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The filter screen 7 is a filter screen that is provided with a plurality of filter elements, and a plurality of filter elements are provided on the top of the filter screen 7. The filter screen 7 has a plurality of filter holes 8, and a filter tube 9 is provided at the bottom of the filter hole 8. The chamber at the bottom of the filter screen 1 is larger than the thickness of the filter plate body 7 and the filter tube 9, so that the filter plate body 7 can be installed in the filter outer frame 1 horizontally. A second limiting slot 3 is provided on the inner wall of the filter outer frame 1 beside the opening 2, and a filter plate limiting baffle 4 is longitudinally inserted in the second limiting slot 3. The filter plate limiting baffle 4 and the filter plate body 7 are vertically arranged, and a protrusion 5 is provided on one side of the upper end of the filter plate limiting baffle 4, so as to facilitate the horizontal insertion and limiting treatment of one end of the filter plate body 7 inserted in the first limiting slot 6.

[0024] like Figure 1 and Figure 4 As shown, in order to slide the transverse cleaning plate 22 onto the filter outer frame 1, the two ends of the support frame 10 are fixedly arranged on the outside of the filter outer frame 1 through the support plates 11, and the support frame 10 is provided with two parallel longitudinal vertical rods 14 on the outside of the support frame 10 through the limit slider 12. The two ends of the transverse cleaning plate 22 are slidably arranged with the upper part of the longitudinal vertical rod 14 through the connecting seat 15, and the outside of the connecting seat 15 is provided with a first locking bolt 16, and the outside of the limit slider 12 is provided with a second locking bolt 13, so that the transverse cleaning plate 22 can be slidably installed on the filter outer frame 1, so that the transverse cleaning plate 22 can be moved to different filter holes 8 for cleaning.

[0025] like Figure 1 and Figure 4As shown, in order to achieve rapid cleaning of the filter holes 8 and the inner walls of the filter tubes 9, a filter plate cleaning mechanism is slidably provided on the outer side of the filter outer frame 1 through a support frame 10, and the filter plate cleaning mechanism includes a transverse cleaning plate 22, and a plurality of cleaning rods 17 are rotatably provided inside the transverse cleaning plate 22 through bearings, and a cleaning bristle 23 is provided at the lower end of the cleaning rod 17, and an adjusting handle 21 is connected to the upper side of the cleaning rod 17 through a gear set transmission, so that the cleaning rod 17 can be inserted into the filter holes 8 and the filter tubes 9 in different arrangements by moving the cleaning rod 17 laterally and longitudinally in turn, and then the cleaning rod 17 is rotated and adjusted by the adjusting handle 21 and the gear set, so that the filter holes 8 and the inner walls of the filter tubes 9 can be cleaned, the cleaning efficiency is high, and the operation is convenient and quick.

[0026] like Figure 1 and Figure 4 As shown, in order to rotationally adjust the multiple cleaning rods 17, the gear set includes a first driven gear 18 arranged at one end of the cleaning rod 17, and the multiple first driven gears 18 are connected to the driving gear 20 through the second driven gear 19, and the adjustment handle 21 is fixedly arranged on the transmission shaft on the upper part of the driving gear 20, so that the multiple cleaning rods 17 can be rotationally adjusted for cleaning through the gear set.

[0027] The working principle and use process of the utility model are as follows: when in use, a first limiting slot 6 is provided on the top of the filter outer frame 1, and the filter plate body 7 is transversely inserted in the first limiting slot 6, so that it is convenient to perform transverse insertion and limiting processing on the filter plate body 7, and the first limiting slot 6 is set to a U-shaped slot, which can surround and fix the three sides of the outside of the filter plate body 7, and the positioning stability is relatively high. A second limiting slot 3 is provided on the inner wall of the opening 2 of the filter outer frame 1, and a filter plate limiting baffle 4 is longitudinally inserted in the second limiting slot 3, which is used to limit one end of the filter plate body 7 inserted in the first limiting slot 6, so that the filter plate body 7 has high insertion and fixing stability, and is convenient and quick to disassemble.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A porous filter plate for nucleic acid synthesis, comprising a filter outer frame (1) and a filter plate body (7), characterized in that: An opening (2) is provided at one end of the filter outer frame (1), a first limiting slide groove (6) is provided at the top of the filter outer frame (1), and a filter plate body (7) is transversely inserted in the first limiting slide groove (6), a second limiting slide groove (3) is provided on the inner wall of the filter outer frame (1) beside the opening (2), and a filter plate limiting baffle (4) is longitudinally inserted in the second limiting slide groove (3), and a filter plate cleaning mechanism is slidably provided on the outside of the filter outer frame (1) through a support frame (10).

2. A porous filter plate for nucleic acid synthesis according to claim 1, characterized in that: A plurality of filter holes (8) are provided inside the filter plate body (7), and a filter tube (9) is provided below the filter hole (8); the chamber at the bottom of the filter outer frame (1) is larger than the sum of the thicknesses of the filter plate body (7) and the filter tube (9).

3. A porous filter plate for nucleic acid synthesis according to claim 1, characterized in that: The filter plate limiting baffle (4) and the filter plate body (7) are arranged vertically, and a protrusion (5) is provided on one side of the upper end of the filter plate limiting baffle (4).

4. A porous filter plate for nucleic acid synthesis according to claim 1, characterized in that: The two ends of the support frame (10) are fixedly arranged on the outside of the filter outer frame (1) via support plates (11), and two support frames (10) are provided in parallel. A longitudinal vertical rod (14) is slidably provided on the outside of the support frame (10) via a limit slider (12).

5. A porous filter plate for nucleic acid synthesis according to claim 4, characterized in that: The filter plate cleaning mechanism comprises a transverse cleaning plate (22), the two ends of the transverse cleaning plate (22) being slidably arranged with the upper part of the longitudinal upright rod (14) via a connecting seat (15), and a plurality of cleaning rods (17) being rotatably arranged inside the transverse cleaning plate (22) via bearings, the lower ends of the cleaning rods (17) being provided with cleaning bristles (23), and the upper sides of the cleaning rods (17) being connected to an adjustment handle (21) via a gear train.

6. A porous filter plate for nucleic acid synthesis according to claim 5, characterized in that: The gear set comprises a first driven gear (18) arranged at one end of the cleaning rod (17), and a plurality of first driven gears (18) are transmission-connected to a driving gear (20) via a second driven gear (19), and the adjustment handle (21) is fixedly arranged on a transmission shaft at the upper portion of the driving gear (20).

7. The porous filter plate for nucleic acid synthesis according to claim 5, characterized in that: A first locking bolt (16) is provided on the outside of the connecting seat (15), and a second locking bolt (13) is provided on the outside of the limiting sliding block (12).

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