Magnetic frame for life science experiment

Abstract

The utility model provides a magnetic frame for life science experiments, which relates to the technical field of magnetic frames and comprises a base, a positioning device is arranged on the outer surface of a frame rod and comprises two rectangular rods, two ends of each rectangular rod are fixedly connected with a screw rod and a sliding block respectively, and the two ends of each rectangular rod are fixedly connected with a screw rod and a sliding block respectively. A plurality of rectangular grooves are formed in the two sides of the frame rod, one side of the frame rod is rotationally connected with a threaded cylinder, the inner wall of the threaded cylinder is in threaded connection with the outer surfaces of the two screw rods, and the side, away from the threaded cylinder, of the frame rod is fixedly connected with a groove rod. A threaded barrel is pushed to enable two screw rods to move in the same direction on the inner wall of the threaded barrel, and rectangular blocks fixed on one sides of two rectangular rods through round rods are clamped on two sides of the test tube, so that the problem of liquid leakage or test tube damage caused by the fact that the test tube falls off from the interior of a placement groove when liquid in the test tube is poured is avoided as much as possible; the practicability of the magnetic frame is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic racks, in particular to a magnetic rack for life science experiments. Background Art

[0002] Life science experiment is a major project to study human life science. During the experiment, a magnetic stand is needed. The magnetic stand is a bracket for placing test tubes. Magnets are placed in the bracket to separate the magnetic beads in the test tubes from the reagents in the test tubes.

[0003] When using a magnetic rack, the magnetic beads in the test tube are separated from the contents by placing the test tube into the tube groove of the magnetic rack, and then the tube groove is tilted to pour out the reagent inside the test tube. When pouring out the reagent inside the test tube, the test tube is prone to slip, causing the reagent to spill or the test tube to be damaged, resulting in reduced practicality and convenience when using the magnetic rack. Utility Model Content

[0004] The utility model aims to solve the problem that the test tube is prone to slip when the reagent inside the test tube is poured, causing the reagent to spill or the test tube to be damaged, resulting in reduced practicality and convenience when the magnetic stand is used, and proposes a magnetic stand for life science experiments.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a magnetic frame for life science experiments, comprising a base, the top end of the base is rotatably connected to a frame rod, the outer surface of the frame rod is provided with a plurality of placement grooves, the outer surface of the frame rod is provided with a positioning device, the positioning device comprises two rectangular rods, the two ends of the two rectangular rods are respectively fixedly connected with screws and sliders, one side of the rectangular rod is fixedly connected with a plurality of round rods, one end of the round rod is fixedly connected with a rectangular block, two sides of the frame rod are provided with a plurality of rectangular grooves, one side of the frame rod is rotatably connected with a threaded barrel, the inner wall of the threaded barrel is threadedly connected to the outer surfaces of the two screw rods, the threads of the two outer surfaces of the screw rods are in opposite directions, the side of the frame rod away from the threaded barrel is fixedly connected with a slot rod, and the outer surface of the slider slides on the inner wall of the slot rod.

[0006] The effect achieved by the above components is: by arranging the rectangular block, after the test tube is placed in the placement groove on the outer surface of the rack rod, the threaded barrel can be pushed to rotate on one side of the rack rod, so that the two screws move in the same direction on the inner wall of the threaded barrel, and at the same time, the slider at one end of the rectangular rod will slide on the inner wall of the groove rod, and the rectangular blocks fixed by the round rods on one side of the two rectangular rods are clamped on both sides of the test tube through the rectangular groove, so as to avoid the test tube from falling off from the inside of the placement groove when pouring the liquid inside the test tube, causing liquid leakage or test tube damage, thereby improving the practicality of the magnetic rack.

[0007] Preferably, a plurality of convex strips are fixedly connected to one side of the rectangular block, and the convex strips are made of rubber material.

[0008] The effect achieved by the above components is that when the side of the rectangular block provided with the rubber convex strip is pressed against the surface of the test tube, the contact with the outer surface of the test tube is more stable and not easy to slide, and the position of the test tube in the placement groove is more stably fixed.

[0009] Preferably, upper and lower ends of the sliding block are respectively fixedly connected with L-shaped blocks, and one side of the two L-shaped blocks slides on the upper and lower sides of the slot rod respectively.

[0010] The effect achieved by the above components is: when the slider at one end of the rectangular rod slides on the inner wall of the slot rod, the L-shaped blocks on the upper and lower sides will slide on the outer surface of the slot rod, further limiting the angle between the slider and the slot rod, and avoiding shaking of the slider when moving as much as possible.

[0011] Preferably, a plurality of protrusions are fixedly connected to the outer surface of the threaded barrel, and the protrusions are distributed in a circle on the outer surface of the threaded barrel.

[0012] The effect achieved by the above-mentioned components is that it is more convenient to push the threaded barrel to rotate by pressing the protrusions on the outer surface of the threaded barrel with hands, and it is not easy for hands to slip.

[0013] Preferably, a ring strip is fixedly connected to the top of the inner wall of the placement groove, and the ring strip is made of rubber material.

[0014] The effect achieved by the above components is that by providing the annular strip made of rubber material, when the test tube is located inside the placement groove, the outer wall close to the top of the inner wall of the placement groove is not easily worn.

[0015] Preferably, an auxiliary device is provided at the bottom end of the base, and the auxiliary device comprises a rectangular plate, a plug plate is fixedly connected to the top end of the rectangular plate, a slot is provided on one side of the base, and a plurality of suction cups are provided at the bottom end of the rectangular plate.

[0016] The effect achieved by the above components is: the rectangular plate can be fixed to the bottom of the base by inserting the plug plate at the top of the rectangular plate into the slot on one side of the base, and the rectangular plate and the base can be adsorbed on the desktop through the suction cup at the bottom of the rectangular plate, thereby avoiding shaking of the magnetic frame when using the magnetic frame as much as possible.

[0017] Preferably, a convex piece is fixedly connected to one side of the suction cup, and the convex piece is made of rubber material.

[0018] The effect achieved by the above components is that one end of the suction cup can be pulled up more conveniently by pinching the protruding piece, thereby releasing the suction cup from the desktop.

[0019] Preferably, a slot block is fixedly connected to one side of the plug plate, and two grooves are formed on the outer surface of the slot block.

[0020] The effect achieved by the above components is that by pinching the two grooves on the outer surface of the slot block, the plug-in board can be pulled out from the inside of the slot more conveniently to remove the auxiliary device.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are:

[0022] In the utility model, by arranging the positioning device, when the test tube is located in the placement groove, the threaded barrel is pushed to make the two screws move in the same direction on the inner wall of the threaded barrel, and the rectangular blocks fixed by the round rods on one side of the two rectangular rods are clamped on the two sides of the test tube, so as to avoid the problem of the test tube falling off from the inside of the placement groove when pouring the liquid inside the test tube, causing liquid leakage or test tube damage, thereby improving the practicality of the magnetic rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the base of the utility model;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the utility model at the pole;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the rectangular rod of the utility model;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the rectangular plate of the utility model.

[0028] Legend: 1. Base; 2. Positioning device; 3. Auxiliary device; 4. Rack rod; 5. Placement groove; 21. Threaded barrel; 22. Screw rod; 23. Rectangular rod; 24. Rectangular groove; 25. Round rod; 26. Rectangular block; 27. Slot rod; 28. Slider; 29. ​​L-shaped block; 210. Raised strip; 211. Protrusion; 212. Ring strip; 31. Slot; 32. Insert plate; 33. Rectangular plate; 34. Suction cup; 35. Lug; 36. Slot block. DETAILED DESCRIPTION

[0029] Embodiment 1, as Figure 1-4As shown, a magnetic frame for life science experiments includes a base 1, the top of the base 1 is rotatably connected to a frame rod 4, the outer surface of the frame rod 4 is provided with a plurality of placement grooves 5, the outer surface of the frame rod 4 is provided with a positioning device 2, the positioning device 2 includes two rectangular rods 23, the two ends of the two rectangular rods 23 are respectively fixedly connected to a screw rod 22 and a slider 28, one side of the rectangular rod 23 is fixedly connected to a plurality of round rods 25, one end of the round rod 25 is fixedly connected to a rectangular block 26, a plurality of rectangular grooves 24 are provided on both sides of the frame rod 4, one side of the frame rod 4 is rotatably connected to a threaded barrel 21, the inner wall of the threaded barrel 21 is threadedly connected to the outer surfaces of the two screw rods 22, the threads of the outer surfaces of the two screw rods 22 are in opposite directions, and the frame rod 4 is away from the screw rods. A groove rod 27 is fixedly connected to one side of the threaded cylinder 21, and the outer surface of the slider 28 slides on the inner wall of the groove rod 27. By setting the rectangular block 26, after the test tube is placed in the placement groove 5 on the outer surface of the rack rod 4, the threaded cylinder 21 can be pushed to rotate on one side of the rack rod 4, so that the two screws 22 move in the same direction on the inner wall of the threaded cylinder 21. At the same time, the slider 28 at one end of the rectangular rod 23 will slide on the inner wall of the groove rod 27, and the rectangular blocks 26 fixed on one side of the two rectangular rods 23 by the round rods 25 are clamped on both sides of the test tube through the rectangular groove 24, so as to avoid the test tube from falling off from the inside of the placement groove 5 when pouring the liquid inside the test tube, causing liquid leakage or test tube damage, thereby improving the practicality of the magnetic rack.

[0030] Reference Figure 2-4 As shown, in the present embodiment: a plurality of convex strips 210 are fixedly connected to one side of the rectangular block 26, and the convex strips 210 are made of rubber material. When one side of the rectangular block 26 provided with the rubber convex strips 210 is pressed against the surface of the test tube, the contact with the outer surface of the test tube is more stable and not easy to slide, and the position of the test tube inside the placement groove 5 is more stably fixed. The upper and lower ends of the slider 28 are respectively fixedly connected with L-shaped blocks 29, and one side of the two L-shaped blocks 29 slides on the upper and lower sides of the groove rod 27 respectively. When the slider 28 at one end of the rectangular rod 23 slides on the inner wall of the groove rod 27, the L-shaped blocks 29 on the upper and lower sides will slide on the outer surface of the groove rod 27, further limiting the angle between the slider 28 and the groove rod 27, and avoiding shaking when the slider 28 moves as much as possible.

[0031] Reference Figure 2-4 As shown, in this embodiment: the outer surface of the threaded barrel 21 is fixedly connected with a plurality of protrusions 211, and the protrusions 211 are distributed in a circle on the outer surface of the threaded barrel 21. It is more convenient and less likely for the hand to slip when the protrusions 211 on the outer surface of the threaded barrel 21 are pressed by hand to push the threaded barrel 21 to rotate. A ring strip 212 is fixedly connected to the top of the inner wall of the placement groove 5. The ring strip 212 is made of rubber material. By setting the rubber ring strip 212, when the test tube is located inside the placement groove 5, the outer wall close to the top of the inner wall of the placement groove 5 is not easily worn.

[0032] Reference Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment: an auxiliary device 3 is provided at the bottom end of the base 1, and the auxiliary device 3 includes a rectangular plate 33, and a plug plate 32 is fixedly connected to the top of the rectangular plate 33. A slot 31 is opened on one side of the base 1, and a plurality of suction cups 34 are provided at the bottom end of the rectangular plate 33. The plug plate 32 at the top of the rectangular plate 33 is inserted into the slot 31 on one side of the base 1 to fix the rectangular plate 33 to the bottom end of the base 1. The suction cup 34 at the bottom end of the rectangular plate 33 can adsorb the rectangular plate 33 and the base 1 on the desktop, so as to avoid shaking of the magnetic frame when using the magnetic frame as much as possible.

[0033] Reference Figure 1 , Figure 2 and Figure 5 As shown, in the present embodiment: a protrusion 35 is fixedly connected to one side of the suction cup 34, and the protrusion 35 is made of rubber material. By pinching the protrusion 35, one end of the suction cup 34 can be pulled up more conveniently to release the suction of the suction cup 34 on the desktop; a groove block 36 is fixedly connected to one side of the plug board 32, and two grooves are provided on the outer surface of the groove block 36. By pinching the two grooves on the outer surface of the groove block 36, the plug board 32 can be pulled out from the inside of the slot 31 to remove the auxiliary device 3 more conveniently.

[0034] Working principle: When using a magnetic rack to separate magnetic beads in a reagent, the insert plate 32 at the top of the rectangular plate 33 can be inserted into the slot 31 on one side of the base 1 to fix the rectangular plate 33 to the bottom end of the base 1, and the rectangular plate 33 and the base 1 can be adsorbed on the desktop through the suction cup 34 at the bottom end of the rectangular plate 33. Then, the test tube containing the reagent is inserted into the placement groove 5 on the outer surface of the rack rod 4, and the threaded barrel 21 is pushed to rotate by hand against the protrusion 211 on the outer surface of the threaded barrel 21, so that the two screws 22 are facing each other on the inner wall of the threaded barrel 21. The two rectangular rods 23 move in the same direction, and the slider 28 at one end of the rectangular rod 23 slides on the inner wall of the groove rod 27, and the rectangular blocks 26 fixed by the round rod 25 on one side of the two rectangular rods 23 pass through the rectangular groove 24 and are clamped on both sides of the test tube, thereby fixing the position of the test tube inside the placement groove 5, and the magnetic beads in the reagent in the test tube are adsorbed on both sides of the test tube near the rack rod 4 through the magnetic block inside the rack rod 4, and then the rack rod 4 is pushed to rotate on the outer surface of the base 1 to tilt the rack rod 4, and the reagent in the test tube is poured out to complete the separation of the magnetic beads.

[0035] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

Claims

1. A magnetic stand for life science experiments, comprising a base (1), characterized in that: The top of the base (1) is rotatably connected to a frame rod (4), the outer surface of the frame rod (4) is provided with a plurality of placement grooves (5), the outer surface of the frame rod (4) is provided with a positioning device (2), the positioning device (2) comprises two rectangular rods (23), the two ends of the two rectangular rods (23) are respectively fixedly connected to a screw rod (22) and a slider (28), one side of the rectangular rod (23) is fixedly connected to a plurality of round rods (25), one end of the round rod (25) is fixedly connected to a rectangular block (26), two sides of the frame rod (4) are provided with a plurality of rectangular grooves (24), one side of the frame rod (4) is rotatably connected to a threaded barrel (21), the inner wall of the threaded barrel (21) is threadedly connected to the outer surfaces of the two screw rods (22), the threads of the outer surfaces of the two screw rods (22) are in opposite directions, the side of the frame rod (4) away from the threaded barrel (21) is fixedly connected to a slot rod (27), the outer surface of the slider (28) slides on the inner wall of the slot rod (27).

2. A magnetic stand for life science experiments according to claim 1, characterized in that: A plurality of convex strips (210) are fixedly connected to one side of the rectangular block (26), and the convex strips (210) are made of rubber material.

3. A magnetic stand for life science experiments according to claim 2, characterized in that: The upper and lower ends of the sliding block (28) are respectively fixedly connected to L-shaped blocks (29), and one side of the two L-shaped blocks (29) slides on the upper and lower sides of the slot rod (27).

4. A magnetic stand for life science experiments according to claim 3, characterized in that: A plurality of protrusions (211) are fixedly connected to the outer surface of the threaded barrel (21), and the protrusions (211) are distributed in a circular pattern on the outer surface of the threaded barrel (21).

5. A magnetic stand for life science experiments according to claim 4, characterized in that: The top end of the inner wall of the placement groove (5) is fixedly connected with an annular strip (212), and the annular strip (212) is made of rubber material.

6. A magnetic stand for life science experiments according to claim 5, characterized in that: An auxiliary device (3) is provided at the bottom end of the base (1), the auxiliary device (3) comprising a rectangular plate (33), the top end of the rectangular plate (33) being fixedly connected to a plug plate (32), a slot (31) being provided at one side of the base (1), and a plurality of suction cups (34) being provided at the bottom end of the rectangular plate (33).

7. A magnetic rack for life science experiments according to claim 6, characterized in that: A convex piece (35) is fixedly connected to one side of the suction cup (34), and the convex piece (35) is made of rubber material.

8. The magnetic rack for life science experiments according to claim 6, characterized in that: A slot block (36) is fixedly connected to one side of the insert plate (32), and two grooves are formed on the outer surface of the slot block (36).

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