96-hole nitrogen blowing plate adaptive to micropore positive pressure device

Abstract

The utility model discloses a 96-hole nitrogen blowing plate adaptive to a micropore positive pressure device, and belongs to the technical field of 96-hole nitrogen blowing plates. Comprising a nitrogen blowing plate, a groove is formed in one side of the nitrogen blowing plate, 96 first micropores are evenly formed in the other side of the nitrogen blowing plate, nitrogen blowing pipes are fixedly communicated with the sides, close to the groove, of the 96 first micropores, nitrogen blowing channels are formed in the nitrogen blowing pipes, and second micropores are formed in the bottoms of the nitrogen blowing channels; and a gun head for assisting nitrogen blowing of the positive pressure device is detachably arranged in each nitrogen blowing channel. According to the nitrogen blowing concentration device, when a positive pressure device needs to be used for carrying out nitrogen blowing concentration on a sample plate, the sample plate is firstly placed below the upper-layer plate, a nitrogen blowing plate is placed above the upper-layer plate, the micropores II are respectively aligned with a sample on the sample plate, a gun head is inserted into each nitrogen blowing channel through the micropores I, and finally, the upper-layer plate is driven to move downwards; meanwhile, the nitrogen release hole in the upper-layer plate is aligned with the opening of the gun head, so that the sample can be subjected to nitrogen blowing concentration.

Description

TECHNICAL FIELD

[0001] The utility model relates to a 96 -hole nitrogen blowing board suitable for micropore positive pressure device belongs to 96 -hole nitrogen blowing board technical field. BACKGROUND

[0002] Before testing biological sample, the biological sample needs to be purified by complex pretreatment method. Among them, 96 -hole plate fixed extraction method is the common method of trace sample pretreatment, and its principle is to extract the sample by the micropore positive pressure device and the solid phase extraction plate. In addition, part of the sample also needs to be concentrated by nitrogen blowing after extraction.

[0003] In the prior art, the positive pressure device is usually used for direct nitrogen blowing for concentration. However, since the descending distance of the upper plate in the positive pressure device is fixed, the distance from the 96 -hole sample receiving plate to the sample hole is too far, so the concentration speed is slow and the time is long. If the 96 -hole sample receiving plate is raised, the sealing is too strong, the solvent is difficult to evaporate, and a longer time is needed to wait for the solvent to evaporate completely, thereby reducing the experimental efficiency. UTILITY MODEL CONTENT

[0004] The utility model solves the problem that the positive pressure device is used for direct nitrogen blowing for concentration in the prior art. However, since the descending distance of the upper plate in the positive pressure device is fixed, the distance from the 96 -hole sample receiving plate to the sample hole is too far, so the concentration speed is slow and the time is long. If the 96 -hole sample receiving plate is raised, the sealing is too strong, the solvent is difficult to evaporate, and a longer time is needed to wait for the solvent to evaporate completely, thereby reducing the experimental efficiency.

[0005] The technical problem solved by the utility model is solved by the following technical scheme: as shown in the figure, a 96 -hole nitrogen blowing board suitable for micropore positive pressure device, comprising a nitrogen blowing board, a groove is formed on one side of the nitrogen blowing board, and 96 micropores are uniformly formed on the other side of the nitrogen blowing board. One side of the 96 micropores is communicated with a nitrogen blowing tube, the nitrogen blowing tube is formed with a nitrogen blowing channel, and the bottom of the nitrogen blowing channel is provided with a micropore. A gun head for assisting the positive pressure device nitrogen blowing is detachably arranged in each nitrogen blowing channel, and one end of the gun head extends out of the micropore.

[0006] When the positive pressure device is used for nitrogen blowing concentration of the sample plate, the sample plate is first placed below the upper plate, then the nitrogen blowing plate is placed above the upper plate, so that the micropores are aligned with the samples on the sample plate. Then, the gun head is inserted into each nitrogen blowing channel through the micropore. Finally, the upper plate is driven to move downward, so that the upper plate is attached to the top surface of the nitrogen blowing plate, and the nitrogen gas release hole on the upper plate is aligned with the opening of the gun head.

[0007] By the structure of the application, when directly concentrating the sample plate by nitrogen blowing using the positive pressure device, the distance between the upper plate in the positive pressure device and the 96-hole sample receiving plate and the sample holes can be reduced by placing the nitrogen blowing plate below the upper plate, so that the concentration efficiency is improved and the concentration time is shortened.

[0008] The utility model further sets up: every nitrogen blowing passage bottom all has the hemispherical shell that communicates and integral moulding, micropore two are located hemispherical shell bottom, hemispherical shell is fixed with the clamping piece for clamping gun head outer peripheral wall in, and clamping piece includes respectively clamping block in hemispherical shell inner wall both sides, and one end of two clamping blocks all is rotatably connected between hemispherical shell inner wall, and the other end of two clamping blocks mutually rotates and buckles.

[0009] Two articulated seats are fixed inside the hemispherical shell, one end of the two clamping blocks is integrally formed with a connecting block, and the two connecting blocks are rotatably fixed in the articulated seats in opposite directions.

[0010] The side of the two clamping blocks away from each other is integrally formed with a protrusion, and the two protrusions are connected to the inner wall of the hemispherical shell by elastic members.

[0011] Specifically, the inner diameter of the bottom end of the gun head gradually decreases, and the side of the two clamping blocks that fits the gun head is provided with an inclined surface.

[0012] In addition, the outer peripheral wall of the gun head is integrally formed with a protruding ring below the two clamping blocks, and the upper and lower edges of the protruding ring are smooth without edges.

[0013] By adopting the above technical scheme, during the process of inserting the gun head into the nitrogen blowing passage, when the protruding ring moves above the two clamping blocks, under the guidance of the edge of the protruding ring, as the gun head continues to move downward, the protruding ring moves between the two clamping blocks, the protruding ring separates the ends of the two clamping blocks that mutually buckle, at the same time, the two connecting blocks rotate in the articulated seats in the direction of moving away from each other, and the two elastic members are compressed to generate elastic force, when the protruding ring moves below the two clamping blocks, the two elastic members release the elastic force and push the two clamping blocks in the direction of moving closer to each other, at the same time, the two clamping blocks clamp the outer wall of the gun head, when the nitrogen blowing plate shakes or tilts, the gun head does not shake in the nitrogen blowing passage.

[0014] The setting of the convex ring makes the gun head be clamped by the two clamping blocks firstly when the nitrogen blowing plate is inclined and the gun head is about to be separated from the nitrogen blowing channel, and the gun head is further stably fixed in the nitrogen blowing channel under the abutting action of the convex ring and the bottom of the two clamping blocks, and the gun head is not separated from the nitrogen blowing plate.

[0015] The utility model further sets up that: two clamping blocks opposite end fixed with magnet sheet one and magnet sheet two of magnetic opposition respectively.

[0016] Through adopting the above technical scheme, the magnet of magnetic opposition generates attractive force when buckling, makes two clamping blocks more closely adhere together, thereby enhances the stability and firmness of two clamping blocks clamping gun head.

[0017] The utility model further sets up that: the inner wall of recess and a plurality of nitrogen blowing channel are connected through connecting plate.

[0018] Through adopting the above technical scheme, the setting of connecting plate can strengthen the connection between nitrogen blowing channel and the inner wall of plate body, thereby improves the structural stability of whole 96 hole nitrogen blowing plate.This helps to ensure that the plate body does not deform or damage during nitrogen blowing, ensures the accuracy and safety of the experiment.

[0019] The utility model discloses the beneficial effect is: when needing to use positive pressure device to carry out nitrogen blowing concentration to sample board, first, first, place sample board below upper layer board, then, place nitrogen blowing board above upper layer board, make that micro hole two align respectively with the sample on sample board, then, insert gun head in every nitrogen blowing channel by micro hole one, finally, drive upper layer board to move down, make that upper layer board is adhered to nitrogen blowing board top surface, and the nitrogen gas release hole on upper layer board is aligned with the opening of gun head, can start nitrogen blowing concentration to sample.

[0020] Through the structure of the application, when using the positive pressure device to directly concentrate the sample board, when the upper layer plate of the positive pressure device is fixed, the nitrogen blowing plate is placed below the upper layer plate, which can reduce the distance between the upper layer plate and the 96-hole sample receiving plate and the sample hole, thereby improving the concentration efficiency and shortening the concentration time. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structural schematic diagram of the utility model;

[0022] Figure 2 It is the structural schematic diagram of the bottom of the utility model;

[0023] Figure 3It is the structure diagram of the hemisphere shell in the utility model;

[0024] Figure 4 It is the structure diagram of the gun head and two clamping blocks in the utility model;

[0025] Figure 5 It is the half sectional view of the gun head and nitrogen blowing pipe in the utility model.

[0026] In the figure: 1, nitrogen blowing plate; 2, groove; 3, micropore one; 4, nitrogen blowing channel; 5, micropore two; 6, gun head; 7, hemisphere shell; 8, clamping block; 9, hinged seat; 10, connecting block; 11, protruding block; 12, elastic member; 13, magnet piece one; 14, magnet piece two; 15, connecting plate; 16, protruding ring; 17, nitrogen blowing pipe; 18, inclined surface. DETAILED DESCRIPTION

[0027] In order to make the technical means, creation characteristics, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0028] As shown in Figure 1 , Figure 2 and Figure 4 , a 96-hole nitrogen blowing plate suitable for a micropore positive pressure device, comprising a nitrogen blowing plate 1, a groove 2 is formed on one side of the nitrogen blowing plate 1, and 96 micropore one 3 are uniformly formed on the other side, the side close to the groove 2 of the 96 micropore one 3 is fixedly connected with a nitrogen blowing pipe 17 in communication, the nitrogen blowing pipe 17 is internally formed with a nitrogen blowing channel 4, the bottom of the nitrogen blowing channel 4 is formed with a micropore two 5, and the gun head 6 for assisting the nitrogen blowing of the positive pressure device is detachably arranged in each nitrogen blowing channel 4, and one end of the bottom of the gun head 6 extends out of the micropore two 5.

[0029] In this embodiment, the length of the nitrogen blowing plate 1 is 123mm, the width is 81mm, the 96 micropore one 3 is distributed in a rectangular shape of 8*12 on the nitrogen blowing plate 1, the inner diameter of the micropore one 3 is 8mm, the inner diameter of the micropore two 5 is 2mm, the depth of the nitrogen blowing channel 4 is 42mm, and the gun head 6 is 200ul.

[0030] In addition, the nitrogen blowing plate 1 is made of a material resistant to corrosion and high temperature, so as to improve the service life and performance of the nitrogen blowing plate 1.

[0031] When the positive pressure device is needed to be used to perform nitrogen blowing concentration on the sample plate, first, the sample plate is placed below the upper plate, then the nitrogen blowing plate 1 is placed above the upper plate, so that the micropore two 5 is aligned with the sample on the sample plate, then the gun head 6 is inserted into each nitrogen blowing channel 4 from the micropore one 3, finally, the upper plate is driven to move downwards, so that the upper plate is attached to the top surface of the nitrogen blowing plate 1, and the nitrogen gas release hole on the upper plate is aligned with the opening of the gun head 6, and then the nitrogen blowing concentration on the sample can be started.

[0032] Through the structure of the present application, when directly concentrating the sample plate by nitrogen blowing using the positive pressure device, when the distance of the upper plate in the positive pressure device descending is fixed, only the nitrogen blowing plate 1 is placed below the upper plate, the distance between the upper plate and the 96-hole sample receiving plate and the sample hole can be reduced, thereby improving the concentration efficiency and shortening the concentration time. At the same time, it is not necessary to pad the bottom of the 96-hole sample receiving plate, so as to ensure moderate sealing, and the solvent is easy to volatilize, so that the solvent can be completely volatilized without waiting for a longer time, thereby improving the experimental efficiency.

[0033] The gun head 6 is arranged to assist nitrogen blowing and accurately nitrogen blow each sample.

[0034] As shown in Figure 3 , Figure 4 and Figure 5 , each nitrogen blowing channel 4 is communicated and integrally formed with a hemispherical shell 7 at the bottom, the microporous two 5 is located at the bottom of the hemispherical shell 7, the hemispherical shell 7 is fixed with a clamping piece for clamping the outer wall of the gun head 6, the clamping piece includes clamping blocks 8 located on both sides of the inner wall of the hemispherical shell 7, one end of the two clamping blocks 8 is rotatably connected with the inner wall of the hemispherical shell 7, and the other end of the two clamping blocks 8 is rotatably buckled.

[0035] The inner side of the hemispherical shell 7 is fixed with two hinge seats 9, one end of the two clamping blocks 8 is integrally formed with a connecting block 10, and the two connecting blocks 10 are rotatably fixed in the hinge seats 9 in opposite directions.

[0036] The side away from each other of the two clamping blocks 8 is integrally formed with a protruding block 11, and the two protruding blocks 11 are connected with the inner wall of the hemispherical shell 7 through elastic pieces 12.

[0037] Specifically, the inner diameter of the bottom end of the gun head 6 gradually decreases, and the side of the two clamping blocks 8 abutting with the gun head 6 is provided with an inclined surface 18.

[0038] In addition, the outer wall of the gun head 6 is integrally formed with a protruding ring 16 below the two clamping blocks 8, and the upper edge and the lower edge of the protruding ring 16 are smooth without edges.

[0039] In the process of clamping the gun head 6 into the nitrogen blowing channel 4, when the convex ring 16 moves above the two clamping blocks 8, under the guidance of the edge of the convex ring 16, as the gun head 6 continues to move downward, the convex ring 16 moves between the two clamping blocks 8, the convex ring 16 separates the mutually buckling ends of the two clamping blocks 8 from each other, at the same time, the two connecting blocks 10 rotate in the hinged seat 9 towards the direction of moving away from each other, the two elastic members 12 are compressed to generate elastic force, when the convex ring 16 moves below the two clamping blocks 8, the two elastic members 12 release the elastic force to push the two clamping blocks 8 towards the direction of moving close to each other, at the same time, the two clamping blocks 8 clamp the outer wall of the gun head 6, when the nitrogen blowing plate 1 shakes or tilts, the gun head 6 does not shake in the nitrogen blowing channel 4.

[0040] The setting of the convex ring 16, when the nitrogen blowing plate 1 tilts and the gun head 6 is about to be separated from the nitrogen blowing channel 4, the gun head 6 is first clamped by the two clamping blocks 8, secondly, under the abutting action of the convex ring 16 and the bottom of the two clamping blocks 8, the gun head 6 is further stably fixed in the nitrogen blowing channel 4, and the gun head 6 does not separate from the nitrogen blowing plate 1.

[0041] As shown in Figure 3 The mutually buckling ends of the two clamping blocks 8 are respectively fixed with magnet piece one 13 and magnet piece two 14 which are magnetically opposite.

[0042] The magnetically opposite magnets will generate attractive force when buckling, so that the two clamping blocks 8 are more closely attached together, thereby enhancing the stability and firmness of the two clamping blocks 8 clamping the gun head 6.

[0043] As shown in Figure 2 The inner wall of the recess 2 and the plurality of nitrogen blowing channels 4 are connected through the connecting plate 15.

[0044] The setting of the connecting plate 15 can strengthen the connection between the nitrogen blowing channel 4 and the inner wall of the plate body, thereby improving the structural stability of the whole 96-hole nitrogen blowing plate 1. This helps to ensure that the plate body does not deform or damage during the nitrogen blowing process, ensuring the accuracy and safety of the experiment.

[0045] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and various changes and improvements can be made without departing from the spirit and scope of the present application. These changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A 96-well nitrogen blow plate adapted for use with a micro- positive pressure device, characterized by: The utility model provides a nitrogen blowing plate, one side of the nitrogen blowing plate (1) is provided with a groove (2), the other side is uniformly provided with 96 micro -holes (3), 96 micro -holes (3) near the one side of the groove (2) are uniformly communicated and are provided with nitrogen blowing channel (4), the bottom of nitrogen blowing channel (4) is provided with micro -hole (5) two, the nitrogen blowing channel (4) is detachably provided with the gun head (6) for assisting positive pressure device nitrogen blowing in each, one end of the gun head (6) extends micro -hole (5) two.

2. A 96-well nitrogen blow plate adapted for use with a micro-well positive pressure device according to claim 1, wherein: The bottom of each nitrogen blowing channel (4) is communicated and provided with a hemispherical shell (7), the micro -hole (5) two is located in the bottom of the hemispherical shell (7), the hemispherical shell (7) is provided with a clamping part for clamping the outer peripheral wall of the gun head (6).

3. A 96-well nitrogen blow plate adapted for use with a micro-well positive pressure device according to claim 2, wherein: The clamping part includes clamping blocks (8) provided on the inner walls of the hemispherical shell (7) respectively, one end of the two clamping blocks (8) is rotatably connected with the inner walls of the hemispherical shell (7), and the other ends of the two clamping blocks (8) are rotatably buckled to each other.

4. A 96-well nitrogen blow plate adapted for use with a micro-well positive pressure device according to claim 3, wherein: Two hinge seats (9) are arranged on the inner walls of the hemispherical shell (7), one end of the two clamping blocks (8) is provided with a connecting block (10), and the two connecting blocks (10) are rotatably arranged in the two hinge seats (9) respectively.

5. A 96-well nitrogen blow plate adapted for use with a micro-well positive pressure device according to claim 4, wherein: The side, away from each other, of the two clamping blocks (8) is provided with a protruding block (11), and the protruding blocks (11) are connected with the inner walls of the hemispherical shell (7) through elastic elements (12) respectively.

6. A 96-well nitrogen blow plate adapted for use with a micro-well positive pressure device according to claim 3, wherein: The end, buckled to each other, of the two clamping blocks (8) is respectively provided with a magnet piece one (13) and a magnet piece two (14) with opposite magnetic properties.

7. A 96-well nitrogen blow plate adapted for use with a micro-well positive pressure device according to claim 3, wherein: The inner diameter of the bottom end of the gun head (6) gradually decreases, and the side, adhered to the gun head (6), of the two clamping blocks (8) is provided with an inclined surface (18).

8. A 96-well nitrogen blow plate adapted for use with a micro-well positive pressure device according to claim 3, wherein: The outer peripheral wall of the gun head (6) is provided with a protruding ring (16) below the two clamping blocks (8).

9. The 96-well nitrogen blow plate adapted for use with a micro- positive pressure device of claim 1, wherein: The inner wall of the groove (2) and the nitrogen blowing channels (4) are connected through a connecting plate (15).

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