Reagent sample adding device
By using multiple injection tubes and a limiting plate in the reagent dispensing device, the problem of inconsistent reaction start times in the reagent dispensing device is solved, achieving efficient and accurate injection of multiple reagents and ensuring the consistency and precision of the experiment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-10
AI Technical Summary
Existing reagent dispensing devices use a single injection device to sequentially inject different reagents, resulting in inconsistent reaction start times within the reaction chamber, which affects the accuracy and consistency of experimental results.
Multiple injection tubes are connected to the syringe via a limiting block, enabling the simultaneous injection of various reagents into the reaction tube. The flow guide and limiting plate prevent cross-contamination of reagents. A power source drives the movement of the injection components to improve efficiency, and an automatic replenishment system ensures reagent supply.
It enables the simultaneous injection of multiple reagents, improving sample addition efficiency and experimental consistency, preventing reagent contamination, and enhancing experimental precision and accuracy.
Smart Images
Figure CN224100668U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of reagent sampling, in particular to a reagent sampling device. BACKGROUND
[0002] In the field of biochemical experiments and medical detection, the reagent sampling device is increasingly widely used. With the deepening of scientific research, high-throughput and high-precision sampling equipment gradually becomes an important tool in experimental operation. The existing reagent sampling device is a single-pipe single-hole sampling device arranged in a certain way, and the reaction platform is moved to align the reaction pool with different reagent outlets for sampling.
[0003] If the reaction pool involves multiple bases, a single reagent injection device needs to be used to inject single bases into the reaction pool one by one, and then another injection device is used for injection after the reagent injection is completed, so that different bases are added into the reaction pool, which will cause the time interval of adding the bases in the column, resulting in the difference in the starting time of the reaction in the reaction pool, the asynchronous reaction process, and the influence on the accuracy of the experimental results. CONTENT OF THE INVENTION
[0004] The application aims to overcome the above technical problems, and provides a reagent sampling device.
[0005] A reagent sampling device comprises:
[0006] A bearing table surface, on which a plurality of reaction test tubes are arranged;
[0007] A medicine injection mechanism carried on the bearing table surface, comprising a plurality of syringes and a pushing piece connected with the pushing end of each syringe, wherein the syringes store different reagents, and
[0008] A plurality of medicine injection pieces located directly above the reaction test tubes, wherein the medicine injection piece comprises a limiting block and a plurality of medicine injection pipes penetrating through the limiting block, the limiting block is in a cylindrical shape and has a smaller radius than the inner diameter of the reaction test tube, the medicine injection pipe is perpendicular to the top surface of the limiting block and the opening of the reaction test tube, and the end of the medicine injection pipe away from the reaction test tube is in communication with the syringe pipeline.
[0009] By using the above scheme, different reagents are injected into the syringes through a single medicine injection pipe, which reduces the sampling efficiency and increases the sampling time, and the reaction time of different reagents is interval, which will affect the consistency of the experiment. The plurality of medicine injection pipes on the limiting block can inject different reagents into the reaction test tube through the syringe, which increases the medicine injection efficiency and maintains the consistency of the experiment. The plurality of medicine injection pipes are separated by the limiting block to avoid mutual pollution of different reagents. The plurality of medicine injection pieces are used to inject medicine into the plurality of reaction test tubes, which improves the sampling efficiency.
[0010] In one of the embodiments, the reagent adding device further comprises a reagent adding support carried on the carrying platform, the reagent adding support comprises a limiting plate, a plurality of carrying columns and a carrying plate carried on the carrying columns, the carrying columns are vertically fixed on the carrying platform, the carrying plate is in a strip shape, a plurality of the reagent adding members are carried on the carrying plate and are arranged along the length direction of the carrying plate, each of the reagent adding members corresponds to a single reaction test tube, and the surface of the limiting plate is provided with a plurality of limiting holes matched with the reaction test tubes.
[0011] By using the above scheme, the reagent adding support is used to carry the reagent adding members, and the limiting holes limit the reaction test tubes to prevent the reaction test tubes from being inclined to cause the reagent adding tubes to be unable to align with the openings of the reaction test tubes.
[0012] In one of the embodiments, the inner wall surface of the limiting hole is provided with a flow guide member, the flow guide member comprises a flow guide part and a neck part, the flow guide part is in a funnel shape, the opening of the flow guide part is embedded on the inner wall surface of the limiting hole, one end of the flow guide part away from the limiting hole is connected with the neck part, and the neck part is matched with the outer wall surface of the reaction test tube.
[0013] By using the above scheme, in the process of reagent adding by the reagent adding tube, if there is an error in the position of the reagent adding tube or the reagent is affected by the wind force in the falling process, the falling track of the reagent will be inclined, thereby causing the reagent to splash out of the reaction test tube and pollute the experimental environment, since the flow guide part is in a funnel shape, when the reagent falls and is inclined, the reagent can flow into the reaction test tube along the inner wall surface of the flow guide part, and the neck part is used to limit the reaction test tube.
[0014] In one of the embodiments, the flow guide part is internally provided with a plurality of baffle plates circumferentially arranged with the center axis of the flow guide part as a rotation shaft, the baffle plates and the inner wall surface of the flow guide part form a plurality of flow guide channels, and the reagent adding tubes are circumferentially arranged with the center axis of the limiting block as a rotation shaft, each of the reagent adding tubes corresponds to a single flow guide channel.
[0015] By using the above scheme, when the reagent flows out of the reagent adding tube, different reagents flow into different flow guide channels to prevent different reagents from contacting each other before flowing into the reaction test tube, thereby affecting the measurement result.
[0016] In one of the embodiments, the limiting block comprises a limiting convex edge, the limiting block penetrates through the carrying plate, the limiting convex edge is attached to the surface of the carrying plate, and the outer peripheral surface of the limiting block is provided with a limiting strip.
[0017] By adopting the above scheme, the limiting convex edge supports the axial direction of the limiting block, preventing the limiting block from falling off the bearing plate, and the limiting strip is used to prevent the limiting block from rotating during the injection process, causing the injection tube to fail to correspond to the flow guide channel.
[0018] In one of the embodiments, the sample adding support further comprises a lead screw and a power source fixed to the bearing column, the lead screw is parallel to the bearing table and perpendicular to the length direction of the bearing plate, the bearing plate is provided with a moving block at both ends, the lead screw penetrates the bearing column at both ends and is connected to the power source at one end, and the moving block cooperates with the lead screw.
[0019] By adopting the above scheme, the power source drives the lead screw to rotate, the moving block moves, and the multiple injection devices move above the next group of reaction test tubes after injecting the reaction test tubes, so as to inject the next group of reaction test tubes.
[0020] In one of the embodiments, the sample adding support comprises two first guide rails, the first guide rails are located at both ends of the bearing plate, the first guide rails are fixed to the bearing column at both ends, the moving block cooperates with the first guide rail, the second guide rail is provided on the side of the moving block away from the first guide rail, the first sliding groove is provided on both sides of the second guide rail, and the first sliding block cooperating with the first sliding groove is provided at both ends of the bearing plate.
[0021] By adopting the above scheme, the first guide rail limits and guides the moving block, preventing the lead screw from rotating and driving the moving block to rotate during rotation, thereby affecting the stability of the movement of the bearing plate, and the sliding block slides along the sliding groove to adjust the height of the bearing plate, so that the injection tube can be adjusted to the optimal working height.
[0022] In one of the embodiments, the sample adding support further comprises a third guide rail arranged in parallel with the bearing column, the second sliding groove is provided on both sides of the third guide rail, and the second sliding block cooperating with the second sliding groove is provided on both sides of the limiting plate.
[0023] By adopting the above scheme, the second sliding block can adjust the height of the limiting plate during the sliding process along the second sliding groove, so as to accurately adjust the distance between the limiting plate and the injection tube.
[0024] In one of the embodiments, the syringe comprises a push rod, the injection mechanism further comprises a push plate, one end of the push rod in the syringe cooperates with the inner wall of the syringe, one end of the push rod exposed from the syringe is connected with the push plate, and the side of the push plate away from the push rod is connected with the pushing piece.
[0025] By adopting the above scheme, the pushing piece drives the pushing plate to push the push rod to move, the pushing plate can drive multiple push rods to simultaneously inject reagents in the syringe into the medicine injection tube, and the consistency of medicine injection is ensured.
[0026] In one of the embodiments, the side of the bearing table away from the sample adding support is provided with a medicine storage box, the medicine storage box is in communication with the syringe, one side of the syringe is provided with a medicine injection switch, the medicine injection switch can control the medicine injection of the medicine storage box into the syringe, when the push rod moves to the bottom of the syringe, the pushing plate starts the medicine injection switch.
[0027] By adopting the above scheme, when the reagent in the syringe is used up, the pushing plate triggers the medicine injection switch, so that the medicine injection tank automatically supplements the reagent in the syringe.
[0028] In summary, the present application has at least one of the following beneficial technical effects:
[0029] 1. Since different reagents are injected into the syringe by using a single medicine injection tube, the sample adding efficiency is low, the sample adding time is increased, and the reaction time of different reagents is interval, which will affect the consistency of the experiment. The multiple medicine injection tubes on the limiting block can inject different reagents into the reaction test tube at the same time, increase the medicine injection efficiency, and maintain the consistency of the experiment. The multiple medicine injection tubes are separated by the limiting block to avoid mutual pollution of different reagents. The use of multiple medicine injection members simultaneously injects multiple reaction test tubes, which improves the sample adding efficiency.
[0030] 2. During the medicine injection process of the medicine injection tube, if there is an error in the position of the medicine injection tube, or the reagent is affected by the wind force during falling, the falling trajectory of the reagent will be inclined, which will cause the reagent to splash out of the reaction test tube and pollute the experimental environment. Since the flow guide part is in the shape of a funnel, when the reagent falls and is inclined, the reagent can flow into the reaction test tube along the inner wall surface of the flow guide part. The neck part is used for limiting the reaction test tube. When the reagent flows out of the medicine injection tube, different reagents flow into different flow guide channels to prevent different reagents from contacting each other before flowing into the reaction test tube, thereby affecting the measurement result.
[0031] 3. The pushing piece drives the pushing plate to push the push rod to move, the push rod injects the reagent in the syringe into the medicine injection tube, and the use of the push rod to inject the reagent can effectively prevent the reagent from being sucked back, ensure that the reagent does not generate droplets at the hole during sample adding, and improve the experimental precision. When the reagent in the syringe is used up, the pushing plate triggers the medicine injection switch, so that the medicine injection tank automatically supplements the reagent in the syringe. BRIEF DESCRIPTION OF DRAWINGS
[0032] Figure 1 is a structural schematic view of a reagent sample adding device provided by the present application.
[0033] Figure 2 is an enlarged view of the A area of Figure 1
[0034] Figure 3 is a structural schematic view of the bearing plate.
[0035] Figure 4 is a schematic view of the mounting relationship of the medicine injection member and the flow guide member.
[0036] Figure 5 is an enlarged view of the B area of Figure 1
[0037] BRIEF DESCRIPTION OF THE DRAWINGS: 1, bearing table; 2, medicine injection member; 21, limiting block; 211, limiting convex edge; 212, stop bar; 22, medicine injection pipe; 3, sample adding support; 31, bearing column; 32, bearing plate; 321, moving block; 322, second guide rail; 3221, first sliding groove; 323, first sliding block; 33, limiting plate; 331, limiting hole; 332, flow guide member; 3321, flow guide part; 3322, neck part; 3323, partition; 3324, flow guide channel; 333, second sliding block; 34, lead screw; 35, power source; 36, first guide rail; 37, third guide rail; 371, second sliding groove; 4, reaction test tube; 5, medicine injection mechanism; 51, syringe; 511, push rod; 52, push member; 53, push plate; 6, medicine storage box; 61, medicine injection switch. DETAILED DESCRIPTION
[0038] Therefore, it is necessary to provide a reagent sample adding device capable of simultaneously injecting multiple different reagents into the reaction test tube 4.
[0039] Referring to Figures 1-2 , Figure 1 is a structural schematic view of a reagent sample adding device provided by the first embodiment of the present application, comprising: a bearing table 1, multiple medicine injection members 2, a sample adding support 3, and a medicine injection mechanism 5.
[0040] Referring to Figure 3 , Figure 3 is a schematic view of the structure of the bearing plate, the surface of the bearing table 1 is arranged with a plurality of reaction test tubes 4, the medicine injection mechanism 5 is carried on the bearing table 1, the medicine injection mechanism includes a plurality of syringes 51 and a pusher 52, the pusher 52 can be an electric push rod, which can accurately control the pushing distance, and the syringes 51 store different reagents. A plurality of medicine injection members 2 are located directly above the reaction test tubes 4, the medicine injection member 2 includes a limiting block 21 and a plurality of medicine injection pipes 22 penetrating the limiting block 21, the end of the medicine injection pipe 22 away from the reaction test tube 4 is communicated with the syringe 51 through a soft infusion pipe, the limiting block 21 is cylindrical and the radius is smaller than the inner diameter of the reaction test tube 4, so that the diameter of the circumferential surface on which the medicine injection pipe 22 is located is smaller than the opening of the reaction test tube 4, ensuring that the medicine injection pipe 22 can inject the reagent into the reaction test tube 4, and the medicine injection pipe 22 is perpendicular to the top surface of the limiting block 21 and the opening of the reaction test tube 4.
[0041] The sample adding support 3 is carried on the bearing table 1, the sample adding support 3 includes a plurality of bearing columns 31 and a bearing plate 32 carried on the bearing columns 31, the bearing columns 31 are vertically fixed on the bearing table 1, the bearing plate 32 is long strip-shaped, a plurality of medicine injection members 2 are carried on the bearing plate 32 and arranged in the length direction of the bearing plate 32, each medicine injection member 2 corresponds to a single reaction test tube 4, and the effect of improving the sample adding efficiency and keeping the experiment consistency is achieved.
[0042] Please see Figure 4 , Figure 4 is a schematic view of the installation relationship of the medicine injection member and the flow guide member, the limiting block 21 includes a limiting convex edge 211 and a limiting strip 212. The limiting block 21 can be made of metal or plastic material, which is used for fixing the medicine injection pipe 22, a plurality of insertion holes matched with the medicine injection pipe 22 are arranged on the limiting block 21, so as to facilitate the installation of the medicine injection pipe 22, the inner wall surface of the insertion hole can be made of rubber material, which protects the medicine injection pipe 22 and facilitates the detachable connection of the medicine injection pipe 22. The medicine injection pipe 22 is arranged in a circumferential array with the axis of the limiting block 21 as the center, a plurality of mounting holes matched with the outer circumferential surface of the limiting block 21 are arranged on the bearing plate 32, the limiting convex edge 211 is attached to the upper surface of the bearing plate 32, which is used for supporting the axial position of the limiting block 21 and preventing the limiting block 21 from falling off from the bearing plate 32; the limiting strip 212 is arranged on the outer circumferential surface of the limiting block 21 in a circumferential array with the axis of the limiting block 21 as the center, which is used for preventing the limiting block 21 from rotating during the medicine injection process, so as to ensure the accurate correspondence between the medicine injection pipe 22 and the flow guide channel 3324. The medicine injection pipe 22 is made of glass and is not easy to deform, so as to accurately inject the reagent into the reaction test tube 4.
[0043] In the present application, the sample adding support 3 further comprises a lead screw 34 and a power source 35 fixed to the bearing column 31. The lead screw 34 is made of stainless steel, which has high strength and wear resistance, and the power source 35 can be a motor. The lead screw 34 is parallel to the bearing table 1 and perpendicular to the length direction of the bearing plate 32. The bearing plate 32 is provided with a moving block 321 at both ends. The lead screw 34 penetrates the bearing column 31 at both ends and is connected to the power source 35 at one end. The moving block 321 cooperates with the lead screw 34. The lead screw 34 is driven to rotate by the power source 35 to realize the horizontal movement of the bearing plate 32, thereby realizing the continuous drug injection operation of the multiple rows of reaction test tubes 4. In addition, the sample adding support 3 further comprises two first guide rails 36 located at both ends of the bearing plate 32. The first guide rails 36 are fixed to the bearing columns 31 at both ends. The moving block 321 cooperates with the first guide rails 36 to ensure the stability of the movement of the bearing plate 32.
[0044] The side of the moving block 321 away from the first guide rail 36 is provided with a second guide rail 322. The second guide rail 322 is provided with a first sliding groove 3221 at both sides. The bearing plate 32 is provided with a first sliding block 323 at both ends, which cooperates with the first sliding groove 3221. The height of the bearing plate 32 is adjusted by sliding the sliding block along the sliding groove, so as to adjust the injection pipe 22 to the optimal working height. When the staff adjusts the bearing plate 32 to the appropriate height through the first guide, the bolt can be simultaneously inserted through the first sliding groove 3221 and the sliding block, and then the nut is used to fix the first sliding block 323 and the sliding groove.
[0045] The sample adding support 3 further comprises a limiting plate 33 and a third guide rail 37 arranged in parallel with the bearing column 31. The third guide rail 37 is provided with a second sliding groove 371 at both sides. The limiting plate 33 is provided with a second sliding block 333 at both sides, which cooperates with the second sliding groove 371. The surface of the limiting plate 33 is provided with a plurality of limiting holes 331. The limiting holes 331 realize the limiting of the reaction test tubes 4 through the flow guide 332. The flow guide 332 comprises a flow guide part 3321 and a neck part 3322. The flow guide part 3321 is funnel-shaped. The opening of the flow guide part 3321 is embedded in the inner wall surface of the limiting hole 331. The end of the flow guide part 3321 away from the limiting hole 331 is connected with the neck part 3322. The neck part 3322 cooperates with the outer wall surface of the opening of the reaction test tube 4 to realize the limiting of the reaction test tube 4 by the limiting plate 33, so as to prevent the reaction test tube 4 from tilting and causing the injection pipe 22 to fail to align with the opening of the reaction test tube 4.
[0046] The flow guide part 3321 can be made of transparent plastic material to facilitate observation of the reagent flow; the neck part 3322 can be made of a material with certain elasticity, such as silicone, for limiting the reaction test tube 4. The flow guide part 3321 is provided with a plurality of baffle plates 3323 arranged in a circumferential array with the center axis of the flow guide part 3321 as the rotation shaft, the baffle plates 3323 and the inner wall surface of the flow guide part 3321 form a plurality of flow guide channels 3324, and each injection pipe 22 corresponds to a single flow guide channel 3324. The baffle plates 3323 can be made of metal or plastic material, which has high strength and corrosion resistance. During the injection of the reagent by the injection pipe 22, if the falling trajectory of the reagent is inclined, the inner wall surface of the flow guide part 3321 can catch the reagent to avoid the reagent falling outside the reaction test tube 4 and causing pollution to the experimental environment.
[0047] Please refer to Figure 5 , Figure 5 is Figure 1 is an enlarged view of the B area of the injection mechanism 5, which further comprises a push plate 53, and the syringe 51 comprises a push rod 511, one end of which is located in the syringe 51 and cooperates with the inner wall surface of the syringe 51, the other end of the push rod 511 exposed from the syringe 51 is connected with the push plate 53, and the side of the push plate 53 away from the push rod 511 is connected with the pusher 52. The one end of the push rod 511 located in the syringe 51 is provided with a rubber push head, so that the push rod 511 can push the reagent while having good sealing performance to prevent the reagent from being sucked back; the push plate 53 can be made of stainless steel material, which has good sealing performance to prevent the reagent from being sucked back. The pusher 52 can drive the push plate 53 to slide when it is started, and the push plate 53 can simultaneously push a plurality of push rods 511, so that a plurality of reagents can be injected at the same time. The syringe 51 can be connected with an air suction device, which can extract the air in the syringe 51 to prevent the residual air in the reagent from affecting the injection accuracy of the syringe 51.
[0048] The side of the bearing table 1 away from the sample holder 3 is provided with a reagent storage box 6, the reagent storage box 6 comprises a plurality of chambers, each chamber stores different types of reagents, and each chamber is provided with a reagent adding pump and a liquid level sensor. The reagent storage box 6 is also provided with a temperature control device to make the temperature in the reagent storage box 6 suitable for storing reagents. The reagent storage box 6 is also provided with a reagent adding port, so that when the liquid level sensor in the reagent storage box 6 senses that the reagent is used up, the staff can re-inject new reagent into the reagent storage box 6 through the reagent adding port. The reagent storage box 6 is in communication with the syringe 51, and one side of the syringe 51 is provided with an injection switch 61, which can control the reagent adding pump in the reagent storage box 6 to inject reagent into the syringe 51. When the push rod 511 is about to move to the bottom of the syringe 51, the push plate 53 abuts against the starting switch, so as to start the injection switch 61 by pressing the button of the injection switch 61, thereby realizing the automatic reagent supplementing function.
[0049] The working principle of the present application is as follows: before use, the staff adjusts the bearing plate 32 to be horizontal through the second guide rail 322 and the third guide rail 37, adjusts the injection tube 22 and the flow guide 332 to a proper distance, then starts the pusher 52, the syringe 51 delivers the reagent to the injection tube 22, and multiple groups of the injection device 2 on the bearing plate 32 inject the reagent into multiple reaction test tubes 4 at the same time. Since the limiting block 21 is provided with multiple injection tubes 22, the injection device 2 can inject multiple different reagents into a single reaction test tube 4 at the same time, thereby keeping the consistency of the experiment. When the injection of the injection device 2 is completed, the power source 35 drives the screw 34 to rotate, the moving block 321 slides along the first guide rail 36, and the bearing plate 32 moves to the upper position of the next group of reaction test tubes 4 to inject the reagent, thereby improving the efficiency of sample addition.
[0050] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, and therefore: any equivalent changes made on the structure, shape and principle of the present application shall be covered within the protection scope of the present application.
Claims
1. A reagent dispensing device, characterized by, The reagent adding device comprises a bearing table (1), a plurality of reaction test tubes (4) arranged on the surface of the bearing table (1), a reagent injection mechanism (5) borne on the bearing table (1), a plurality of reagent injection members (2) located above the reaction test tubes (4), and a reagent injection support (3) borne on the bearing table (1). The reagent injection mechanism (5) comprises a plurality of syringes (51) and a pushing member (52) connected with the pushing end of each syringe (51), and different reagents are stored in the syringes (51). The reagent injection member (2) comprises a limiting block (21) and a plurality of reagent injection pipes (22) penetrating through the limiting block (21), the limiting block (21) is in a cylindrical shape and has a smaller radius than the inner diameter of the reaction test tube (4), the reagent injection pipe (22) is perpendicular to the top surface of the limiting block (21) and the opening of the reaction test tube (4), and the end of the reagent injection pipe (22) away from the reaction test tube (4) is in communication with the pipeline of the syringe (51). The reagent injection support (3) comprises a limiting plate (33), a plurality of bearing columns (31) and a bearing plate (32) borne on the bearing columns (31), the bearing column (31) is vertically fixed on the bearing table (1), the bearing plate (32) is in a strip shape, a plurality of reagent injection members (2) are borne on the bearing plate (32) and arranged along the length direction of the bearing plate (32), each reagent injection member (2) corresponds to a single reaction test tube (4), and the limiting plate (33) is provided with a plurality of limiting holes (331) matched with the reaction test tubes (4).
2. The reagent dispensing device of claim 1, wherein: The inner wall surface of the limiting hole (331) is provided with a flow guide member (332), the flow guide member (332) comprises a flow guide part (3321) and a neck part (3322), the flow guide part (3321) is in a funnel shape, the opening of the flow guide part (3321) is embedded in the inner wall surface of the limiting hole (331), and the end of the flow guide part (3321) away from the limiting hole (331) is connected with the neck part (3322).
3. The reagent spotting device of claim 2, wherein: The flow guide part (3321) is provided with a plurality of baffle plates (3323) circumferentially arranged around the central axis of the flow guide part (3321), the baffle plate (3323) and the inner wall surface of the flow guide part (3321) form a plurality of flow guide channels (3324), and the reagent injection pipe (22) is circumferentially arranged around the central axis of the limiting block (21), each reagent injection pipe (22) corresponds to a single flow guide channel (3324).
4. The reagent spotting device of claim 3, wherein: The limiting block (21) comprises a limiting protruding edge (211), the limiting block (21) penetrates through the bearing plate (32), the limiting protruding edge (211) is attached to the surface of the bearing plate (32), and the outer peripheral surface of the limiting block (21) is provided with a limiting strip (212).
5. The reagent spotting device of claim 2, wherein: 6. The reagent spotting device of claim 2, wherein: The sample loading support (3) further comprises a lead screw (34) and a power source (35) fixed to the bearing column (31), the lead screw (34) is parallel to the bearing platform (1) and perpendicular to the length direction of the bearing plate (32), the bearing plate (32) is provided with a moving block (321) at both ends, the lead screw (34) penetrates the bearing column (31) at both ends and is connected to the power source (35) at one end, and the moving block (321) cooperates with the lead screw (34).
7. The reagent spotting device of claim 6, wherein: The sample loading support (3) comprises two first guide rails (36) located at both ends of the bearing plate (32), the first guide rails (36) are fixed to the bearing column (31) at both ends, the moving block (321) cooperates with the first guide rail (36), and the moving block (321) is provided with a second guide rail (322) on the side away from the first guide rail (36), the second guide rail (322) is provided with a first sliding groove (3221) on both sides, and the bearing plate (32) is provided with a first sliding block (323) cooperating with the first sliding groove (3221) at both ends.
8. The reagent spotting device of claim 6, wherein: The sample loading support (3) further comprises a third guide rail (37) arranged in parallel with the bearing column (31), the third guide rail (37) is provided with a second sliding groove (371) on both sides, and the limiting plate (33) is provided with a second sliding block (333) cooperating with the second sliding groove (371) on both sides.
9. The reagent spotting device of claim 2, wherein: The syringe (51) comprises a push rod (511), the injection mechanism (5) further comprises a push plate (53), one end of the push rod (511) in the syringe (51) cooperates with the inner wall of the syringe (51), one end of the push rod (511) exposed from the syringe (51) is connected with the push plate (53), and the side of the push plate (53) away from the push rod is connected with the pusher (52).
10. The reagent spotting device of claim 9, wherein: The bearing platform (1) is provided with a medicine storage box (6) on the side away from the sample loading support (3), the medicine storage box (6) communicates with the syringe (51), one side of the syringe (51) is provided with a medicine injection switch (61), the medicine injection switch (61) can control the medicine storage box (6) to inject medicine into the syringe (51), and when the push rod (511) moves to the bottom of the syringe (51), the push plate (53) starts the medicine injection switch (61).