A PCR tube opening and closing device
Patent Information
- Application Number
- CN202521731249.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-14
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-08-14
AI Technical Summary
[0004]在现有技术中，待处理样本将通过PCR管进行容纳，为避免PCR管内部的样本遭到污染，传统PCR管的管口位置通常设有封盖，但封盖通常是使用过盈配合进行封盖导致频繁开盖时难以快速开盖
1.本实用新型所述的一种PCR管开关盖装置，通过使用固定磁铁和上磁铁、下磁铁进行吸附固定可在频繁开启盖板时减少操作时间，由此加快对PCR管的开启从而在滴入试剂时更加便捷，在开启盖板后扭簧会带动盖板上移将固定磁铁向上磁铁移动，由此提起盖板即可快速开启。
Smart Images
Figure CN224700249U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of experimental auxiliary equipment, specifically a PCR tube opening and closing device. Background Technology
[0002] PCR technology is a common molecular biology technique used to amplify specific DNA fragments. During the experiment, the experimenter first adds reagents such as buffer and primers to the sample, and then performs temperature changes and centrifugation on the mixture to carry out multiple processing steps such as denaturation, renaturation and extension.
[0003] PCR tubes are experimental instruments used for polymerase chain reaction (PCR). They are usually thin-walled plastic tubes that can withstand temperature changes well. They come in various sizes, such as 0.2ml and 0.5ml, to meet different experimental needs. They are generally cylindrical in shape and have flat or convex caps.
[0004] In existing technologies, the samples to be processed are contained in PCR tubes. To prevent the samples inside the PCR tubes from being contaminated, traditional PCR tubes are usually capped at the opening. However, the capping is usually done using an interference fit, which makes it difficult to open the cap quickly when opening it frequently.
[0005] Therefore, a PCR tube opening and closing device is proposed to address the above problems. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A PCR tube opening and closing device of this utility model includes a placement platform with multiple placement slots on the top of the platform; a vertical plate is fixedly connected to the middle of the platform; multiple square plates are fixedly connected to the side wall of the vertical plate; a cover plate is rotatably connected to the middle of the square plates; the cover plate and the square plates are connected by a torsion spring; a fixed magnet is fixedly connected to the end of the cover plate; multiple lower magnets are fixedly connected to the surface of the platform; multiple upper magnets are fixedly connected to the top of the vertical plate; the upper magnets, lower magnets and fixed magnets are arranged correspondingly; by using the fixed magnets and upper and lower magnets for adsorption and fixation, the operation time can be reduced when frequently opening the cover, thereby speeding up the opening of the PCR tube and making it more convenient to add reagents. After opening the cover, the torsion spring will drive the cover to move upward and move the fixed magnets upward, thereby lifting the cover to open it quickly.
[0008] Preferably, a damping spring shock absorber is fixedly connected to the bottom of the placement slot; a buffer plate is fixedly connected to the top of the damping spring shock absorber; by adding the damping spring shock absorber and the buffer plate, the force of the PCR tube falling after placement can be reduced during use, thereby protecting the PCR tube during placement and reducing direct contact with the placement slot, thereby reducing impact damage.
[0009] Preferably, a pair of clamps are fixed to the inner wall of the placement slot; the clamps are arc-shaped; by adding clamps, the PCR tube can be more stably held in the middle after placement, and the clamps are elastic and can automatically adjust when the PCR tube enters to adapt to the entry of the PCR tube.
[0010] Preferably, a roller is rotatably connected to the middle of the clamp; the roller and the clamp are correspondingly arranged; by adding the roller, the contact between the PCR tube and the clamp can be reduced by the rolling action driven by the roller when it comes into contact with the tube, thereby speeding up the placement of the PCR tube.
[0011] Preferably, a label block is fixed to the surface of the placement platform; the colors of the label block are red, yellow and green in sequence; by adding label blocks, the reagents in the PCR tubes can be classified, thereby making it easier to determine the status of the placement tank during placement.
[0012] Preferably, a connecting rod is fixedly connected between the cover plates; the connecting rod and the marking block are correspondingly set; by adding the connecting rod, the linkage can be increased when operating the same type of PCR tube, so as to reduce the operation and speed up the operation of the cover plates.
[0013] The advantages of this utility model are: 1. The PCR tube opening and closing device of this utility model reduces operation time when the cover is frequently opened by using a fixed magnet and upper and lower magnets for adsorption and fixation, thereby speeding up the opening of the PCR tube and making it more convenient to add reagents. After the cover is opened, the torsion spring will drive the cover to move up and move the fixed magnet to the upper magnet, thereby lifting the cover to open it quickly.
[0014] 2. The PCR tube opening and closing device of this utility model can reduce the force of the PCR tube falling after being placed by adding a damping spring shock absorber and a buffer plate, thereby protecting the PCR tube during placement and reducing direct contact with the placement slot, thus reducing impact damage. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the main body of this utility model; Figure 2 This is a schematic diagram of the structure of the neutral plate of this utility model; Figure 3 This is a schematic diagram of the structure of the identifier block in this utility model; Figure 4 This is a schematic diagram of the structure of the buffer plate in this utility model; Figure 5 This is a schematic diagram of the connecting rod in this utility model.
[0017] In the diagram: 1. Placement platform; 11. Placement slot; 12. Vertical plate; 13. Square plate; 14. Cover plate; 15. Fixed magnet; 16. Upper magnet; 17. Lower magnet; 2. Damping spring shock absorber; 21. Buffer plate; 3. Clamping plate; 4. Roller; 5. Identifier block; 6. Connecting rod. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0019] Specific implementation examples are given below.
[0020] like Figures 1 to 5As shown in the embodiment of this utility model, a PCR tube opening and closing device includes a placement platform 1, with multiple placement slots 11 on the top of the placement platform 1; a vertical plate 12 is fixedly connected to the middle of the placement platform 1; multiple square plates 13 are fixedly connected to the side wall of the vertical plate 12; a cover plate 14 is rotatably connected to the middle of the square plate 13; the cover plate 14 and the square plate 13 are connected by a torsion spring; a fixed magnet 15 is fixedly connected to the end of the cover plate 14; multiple lower magnets 17 are fixedly connected to the surface of the placement platform 1; multiple upper magnets 16 are fixedly connected to the top of the vertical plate 12; the upper magnets 16, lower magnets 17, and fixed magnets 15 are correspondingly arranged; during operation, multiple PCR tubes are first inserted into the placement slots 11 in sequence, and then the reagent is dripped in. After this is completed, the fixed magnet 15 is moved to bring the lower magnet 17 closer. When the fixed magnet 15 and the lower magnet 17 are close together, the lower magnet... The fixed magnet 15 and the cover plate 17 will attract each other to fix them in place. Then, when it is necessary to open the PCR tube, the fixed magnet 15 can be lifted to open the PCR tube. When the cover plate 14 is lifted, the fixed magnet 15 will move closer to the upper magnet 16 due to the torsion spring inside the square plate 13. Then, it will attract when it comes into contact with the upper magnet 16. After attraction, the reagents inside the PCR tube can be adjusted. Thus, the PCR tube can be quickly opened and closed by using the fixed magnet 15, the upper magnet 16, and the lower magnet 17. By using the fixed magnet 15, the upper magnet 16, and the lower magnet 17 to attract and fix them, the operation time can be reduced when the cover plate 14 is frequently opened, thereby speeding up the opening of the PCR tube and making it more convenient to add reagents. After the cover plate 14 is opened, the torsion spring will drive the cover plate 14 to move upward and move the fixed magnet 15 to the upper magnet 16, thereby lifting the cover plate 14 to open it quickly.
[0021] like Figure 4 As shown, a damping spring shock absorber 2 is fixedly connected to the bottom of the placement slot 11; a buffer plate 21 is fixedly connected to the top of the damping spring shock absorber 2. During operation, when the PCR tube is placed inside the placement slot 11, it will fall and come into contact with the buffer plate 21. The buffer plate 21 will push the damping spring shock absorber 2 to compress it. When the damping spring shock absorber 2 is compressed, it will reduce the force of the PCR tube falling and reduce its contact with the placement slot 11. After the PCR tube and the buffer plate 21 come into contact, the buffer plate 21 will enter the placement slot 11, and then the bottom of the PCR tube will come into contact with the bottom of the placement slot 11. This reduces the impact damage of the PCR tube falling during installation. By adding the damping spring shock absorber 2 and the buffer plate 21, the force of the PCR tube falling after placement can be reduced during use, thereby protecting the PCR tube during placement and reducing direct contact with the placement slot 11, thus reducing impact damage.
[0022] like Figure 4As shown, a pair of clamps 3 are fixed to the inner wall of the placement slot 11; the clamps 3 are arc-shaped; during operation, when the PCR tube is placed into the placement slot 11, the PCR tube will contact the clamps 3. Subsequently, as the PCR tube enters, the clamps 3 will move towards the inner wall of the placement slot 11 due to the movement of the PCR tube, and at the same time, the clamps 3 will be in close contact with the PCR tube, thereby clamping the PCR tube; by adding clamps 3, the middle clamp can be added after the PCR tube is placed, making it more stable inside the placement slot 11. At the same time, the clamps 3 are elastic and can automatically adjust when the PCR tube enters, thereby adapting to the entry of the PCR tube.
[0023] like Figure 4 As shown, a roller 4 is rotatably connected to the middle of the clamp 3; the roller 4 and the clamp 3 are correspondingly arranged; during operation, when the PCR tube moves along the surface of the clamp 3 after contacting the clamp 3, it will contact the roller 4, and then the roller 4 will roll during the movement, thereby reducing the friction between the PCR tube and the clamp 3 during use, making it move faster along the clamp 3; by adding the roller 4, the contact between the PCR tube and the clamp 3 can be reduced by the rolling driven by the roller 4 when the PCR tube is placed, thereby speeding up the placement of the PCR tube.
[0024] like Figures 1 to 3 As shown, a marker block 5 is fixed to the surface of the placement platform 1; the colors of the marker block 5 are red, yellow, and green in sequence; during operation, when placing PCR tubes, the placement slot 11 without reagent is inserted into the red side placement slot 11, the tubes with reagent are placed into the green side placement slot 11, and the tubes with all reagent are placed into the green side placement slot 11, thus separating them; by adding the marker block 5, the PCR tubes containing reagent can be classified, thereby making it easier to quickly determine the status of the placement slot 11 during placement.
[0025] like Figures 1 to 5 As shown, a connecting rod 6 is fixedly connected between the cover plates 14; the connecting rod 6 and the identification block 5 are correspondingly set; during operation, when opening and closing PCR tubes of the same type, pulling one of the cover plates 14 can drive the other cover plate 14, thereby opening the cover plates 14 of the same type simultaneously; by adding the connecting rod 6, the linkage can be increased when operating PCR tubes of the same type, thus reducing the operation and speeding up the operation of the cover plates 14.
[0026] Working principle: Multiple PCR tubes are first inserted into the placement slot 11. After reagents are added, the fixing magnet 15 is moved closer to the lower magnet 17. When the fixing magnet 15 and the lower magnet 17 are close, they attract each other and are fixed in place. To open the PCR tube, the fixing magnet 15 is lifted. When the cover plate 14 is lifted, the fixing magnet 15 moves closer to the upper magnet 16 due to the torsion spring inside the square plate 13, and then attracts the upper magnet 16 upon contact. After adsorption, the reagents inside the PCR tube can be adjusted, thereby enabling rapid opening and closing of the PCR tube via the fixed magnet 15, upper magnet 16, and lower magnet 17. When the PCR tube is placed inside the placement slot 11, it will fall and come into contact with the buffer plate 21. The buffer plate 21 will push the damping spring shock absorber 2 to compress it. When the damping spring shock absorber 2 is compressed, it will reduce the force of the PCR tube falling and weaken its contact with the placement slot 11. After the PCR tube contacts the buffer plate 21, the buffer plate 21 will enter the placement slot 1. 1. The bottom of the PCR tube will then contact the bottom of the placement slot 11, thereby reducing impact damage when the PCR tube falls during installation. When the PCR tube is placed into the placement slot 11, it will contact the clamp 3. Subsequently, as the PCR tube moves, the clamp 3 will move towards the inner wall of the placement slot 11, and the clamp 3 will be in close contact with the PCR tube, thus clamping the PCR tube. After the PCR tube contacts the clamp 3, it will contact the roller 4 as it moves along the surface of the clamp 3. Subsequently, the roller 4 will roll during the movement, thus... Reduce friction between the PCR tube and the clamp 3 during use to make it move faster along the clamp 3; when placing the PCR tube, insert the unfilled placement slot 11 into the red side placement slot 11, the partially filled slot into the green side placement slot 11, and the fully filled slot into the green side placement slot 11 to separate them; when opening and closing the same type of PCR tube, pull one of the covers 14 to move the other cover 14, thus opening the same type of covers 14 simultaneously.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A PCR tube switch cap device, characterized by: The system includes a placement platform (1), which has multiple placement slots (11) on its top; a vertical plate (12) is fixedly connected to the middle of the placement platform (1); multiple square plates (13) are fixedly connected to the side walls of the vertical plate (12); a cover plate (14) is rotatably connected to the middle of the square plate (13); the cover plate (14) and the square plate (13) are connected by a torsion spring; a fixed magnet (15) is fixedly connected to the end of the cover plate (14); multiple lower magnets (17) are fixedly connected to the surface of the placement platform (1); multiple upper magnets (16) are fixedly connected to the top of the vertical plate (12); the upper magnets (16), lower magnets (17) and fixed magnets (15) are arranged correspondingly. A damping spring shock absorber (2) is fixedly connected to the bottom of the placement slot (11); a buffer plate (21) is fixedly connected to the top of the damping spring shock absorber (2). A pair of clamps (3) are fixed to the inner wall of the placement groove (11); the clamps (3) are arc-shaped.
2. The PCR tube switch cap device of claim 1, wherein: The clamping plate (3) is rotatably connected to a roller (4) in the middle; the roller (4) and the clamping plate (3) are arranged correspondingly.
3. The PCR tube cap opening and closing device according to claim 2, characterized in that: The surface of the placement platform (1) is fixed with a marker block (5); the colors of the marker block (5) are red, yellow and green in sequence.
4. A PCR tube cap opening and closing device according to claim 3, characterized in that: A connecting rod (6) is fixed between the cover plates (14); the connecting rod (6) and the marking block (5) are set accordingly.