PCR tube rack facilitating PCR experiment operation
The PCR tube rack, designed with mechanical linkage and gear transmission system, solves the problems of PCR tube rack obstruction and inconvenient storage, achieves sample safety protection and reagent stability, and improves experimental efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI DEAN HUAXING MEDICAL LAB CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-08-04
AI Technical Summary
Existing PCR tube racks are inconvenient for shielding and storing samples, making them susceptible to dust and debris contamination. Changes in external light and temperature and humidity affect reagent stability and cause damage, increasing consumable costs and delaying experimental progress. Operational efficiency and safety are difficult to guarantee.
The design employs a mechanical linkage system, which uses a cover plate and gear transmission system to automatically raise and cover the placement tube. Combined with a telescopic rod and slide rail structure, the height can be precisely adjusted to ensure the stability and safety of the placement tube.
It improves the operational efficiency and convenience of PCR experiments, ensures experimental accuracy, prevents contamination and accidental collisions, protects reagent stability, saves space, and reduces the risk of damage.
Smart Images
Figure CN224585957U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PCR experimental rack technology, and in particular to a PCR tube rack that facilitates PCR experimental operations. Background Technology
[0002] PCR tube racks are experimental devices used to hold PCR tubes. Their core function is to fix the PCR tubes and provide support for experimental operations. Through structural design, the PCR tubes can be exposed and their height can be adjusted for operations such as sample addition and observation during use. When not in use, they can be shielded by shielding components to isolate contamination and protect reagents. They are also compact and easy to operate, which can improve the efficiency and safety of PCR experiments and are widely used in molecular biology experiments.
[0003] A search revealed Chinese patent CN214514747U, which discloses a PCR tube rack for convenient PCR experiment operation. The rack includes an operation box and an adjustment box. Multiple adjustment boxes are fixedly installed inside the operation box. Multiple first screws are evenly rotatably connected to the left side of the operation box's inner cavity. A first bevel gear is fixedly sleeved on the lower side of the outer wall of each first screw. A first motor is fixedly installed on the rear side of the operation box's inner cavity. A second screw is fixedly connected to the transmission end of the first motor. A first moving plate is screwed onto the outer wall of the second screw. This allows any set of adjustment boxes to move up and down, and a hydraulic press to move the placement tubes upwards. Controlling the upward movement of the placement tubes can provide prompts to the user, preventing accidental selection.
[0004] The aforementioned techniques are not convenient for shielding and storage, and samples are easily exposed to the outside, becoming contaminated by dust and debris, affecting the accuracy of experimental results. Without shielding protection, changes in external light, temperature, and humidity can interfere with reagent stability, reducing the success rate of experiments. There is no effective storage design, and the samples occupy a lot of space when not in use. Furthermore, accidental collisions can easily damage the tube racks or samples, increasing the cost of experimental consumables and potentially delaying the experimental progress. Overall operational efficiency and safety are difficult to guarantee. Utility Model Content
[0005] The purpose of this invention is to provide a PCR tube rack that facilitates PCR experimental operations. It solves the problems of the aforementioned technologies, such as inconvenience in shielding and storing samples, easy exposure to dust and debris, affecting the accuracy of experimental results, lack of shielding protection, interference with reagent stability by changes in external light, temperature and humidity, and reduced experimental success rate, and lack of effective storage design, which occupy a large space when not in use and is easily damaged by accidental collisions, increasing the cost of experimental consumables and potentially delaying the experimental progress, making it difficult to guarantee overall operational efficiency and safety.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a PCR tube rack for easy PCR experimental operation, comprising a mounting box and a tube placement box, and further comprising: The protruding part is located on the inner side of the mounting box; A cover plate is provided on the outer top of the mounting box to cover the placement tube; A tray is provided on the inner side of the top of the mounting box; A lifting component is located on the inside of the tray; The toothed column is slidably disposed on the inner side of the tray, and the toothed column moves vertically on the inner side of the tray.
[0007] In a preferred embodiment, the protruding member includes: A sector gear is rotatably mounted on the inner side of the mounting housing; The first connecting arm is fixedly disposed on one side of the sector gear, and one end of the first connecting arm is connected to one side of the cover plate. The second connecting arm is fixedly mounted on one side of the first connecting arm; The third connecting arm is rotatably disposed on the outside of one end of the second connecting arm, and one side of the third connecting arm is connected to one side of the tray.
[0008] In a preferred embodiment, a fourth connecting arm is rotatably provided on the inner side of the mounting box, and the outer side of the top end of the fourth connecting arm is connected to one side of the cover plate.
[0009] In a preferred embodiment, a lifting cylinder is installed on the inner side of the bottom of the mounting box, and the outer side of the end of the lifting cylinder is connected to the lower surface of the tray.
[0010] In a preferred embodiment, a toothed rod is fixedly provided on the lower surface of the tray, and a first gear is fixedly provided on one side of the second connecting arm, with one side of the toothed rod meshing with the first gear.
[0011] In a preferred embodiment, the lifting member includes: The mounting plate is fixedly installed on the inner side of the bottom end of the tray; The support frame is fixedly mounted on the upper surface of the mounting plate; A pivot is rotatably mounted on the inner side of the top end of the support frame; The second gear is fixedly disposed on the outer sides of both ends of the rotating shaft, and the second gear meshes with one side of the gear post; A long plate is fixedly mounted on the upper surface of the toothed column, and a placement tube is mounted on the upper surface of the long plate.
[0012] In a preferred embodiment, a third gear is fixedly installed on the outer side of the middle part of the rotating shaft, a telescopic rod is installed on the inner side of the tray, a rack is fixedly installed on the outer side of one end of the telescopic rod, and one side of the rack is meshed with the outer side of the third gear.
[0013] In a preferred embodiment, a slide rail is mounted on the upper surface of the mounting plate, and the rack is slidably connected to the mounting plate via the slide rail.
[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This invention features a mechanical linkage mechanism that automatically raises and exposes the placement tubes during use, facilitating quick access and observation during experiments. The compact structure ensures convenient and space-saving operation, while the stable and reliable mechanical transmission enhances the efficiency and convenience of PCR experiments. The cover isolates dust and debris, preventing them from contaminating the PCR samples and ensuring experimental accuracy. Furthermore, it prevents direct sunlight, reduces accidental collisions, and protects the stability of reagents and the integrity of the tube rack structure. Attached Figure Description
[0015] Figure 1 A schematic diagram of the main structure of a PCR tube rack that facilitates PCR experimental operations, provided by this utility model; Figure 2 A schematic diagram of the fourth connecting arm and lifting cylinder in a PCR tube rack that facilitates PCR experimental operations, provided by this utility model; Figure 3 A schematic diagram of the structure of the first and second connecting arms in a PCR tube rack that facilitates PCR experimental operations, provided by this utility model; Figure 4 A cross-sectional view of a PCR tube rack tray for convenient PCR experimental operation provided by this utility model; Figure 5 This invention provides a schematic diagram of the structure of the rotating shaft and the second gear in a PCR tube rack that facilitates PCR experimental operations.
[0016] Legend: 1. Mounting box; 2. Placement tube; 3. Cover plate; 301. Sector gear; 302. First connecting arm; 303. Second connecting arm; 304. Third connecting arm; 305. Pallet; 306. Fourth connecting arm; 307. Lifting cylinder; 308. Rack; 309. First gear; 4. Gear column; 401. Mounting plate; 402. Support frame; 403. Rotating shaft; 404. Second gear; 405. Long plate; 406. Telescopic rod; 407. Rack; 408. Third gear; 409. Slide rail. Detailed Implementation
[0017] 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 protection scope of the present utility model.
[0018] Example 1: Please see Figures 1-5 This embodiment provides a PCR tube rack that facilitates PCR experimental operations by providing easy shielding and storage for the placement tube 2. The specific idea is as follows: This PCR tube rack, which facilitates PCR experiment operation, includes a mounting box 1 and a tube holder 2. In addition, the PCR tube rack also includes a cover plate 3 on the outer side of one end of the mounting box 1. The cover plate 3 can cover the tube holder 2. When it is necessary to perform an experiment on the tube holder 2, the tube holder 2 can be extended from inside the mounting box 1. At the same time as it extends, the cover plate 3 moves to both sides, exposing the tube holder 2 to the outside.
[0019] In order to drive the cover plate 3, this embodiment provides an extension member that can extend the placement tube 2 while unfolding the cover plate 3. When the placement tube 2 is retracted into the mounting box 1, the cover plates 3 on both sides are closed in a coordinated manner.
[0020] The protruding component includes: a sector gear 301 rotatably connected to the inner side of the mounting housing 1, used to drive the components on both sides to move synchronously; a first connecting arm 302 fixedly connected to one side of the sector gear 301, with one end of the first connecting arm 302 rotatably connected to one side of the cover plate 3, used to drive the cover plate 3 to move; a second connecting arm 303 fixedly connected to one side of the first connecting arm 302; a third connecting arm 304 rotatably connected to one end of the second connecting arm 303, with one side of the third connecting arm 304 rotatably connected to one side of the tray 305; and the inner side of the mounting housing 1... A fourth connecting arm 306 is rotatably connected to the side. The outer side of the top of the fourth connecting arm 306 is rotatably connected to one side of the cover plate 3, and together with the first connecting arm 302, it supports the cover plate 3. A lifting cylinder 307 is installed on the inner side of the bottom of the mounting box 1. The outer side of the end of the lifting cylinder 307 is fixedly connected to the lower surface of the tray 305, and is used to drive the tray 305 to move vertically. A rack 308 is fixedly connected to the lower surface of the tray 305. A first gear 309 is fixedly connected to one side of the second connecting arm 303, and one side of the rack 308 is meshed with the first gear 309.
[0021] In the specific implementation process: When the user conducts an experiment using the placement tube 2, the lifting cylinder 307 can be activated. The lifting cylinder 307 pushes the tray 305 to move vertically upward, simultaneously driving the rack 308 to move vertically upward. As the rack 308 moves vertically upward, it drives the first gear 309 to rotate. The rotation of the first gear 309, in turn, drives the sector gear 301, the first connecting arm 302, and the second connecting arm 303 to rotate. Simultaneously, the rotation of the second connecting arm 303 pushes the third connecting arm 304 to both sides. The rotation of the third connecting arm 304 pushes the tray 305 out of the mounting box 1, while the rotation of the first connecting arm 302 pushes the two cover plates 3 to the sides. With the joint support of the fourth connecting arm 306, the cover plates 3 are moved to the sides. At this time, the placement tube 2 is exposed on the outside and rises a certain distance. When the placement tube 2 is put away, the tray 305 is lowered vertically. At the same time, the sector gear 301, the first connecting arm 302 and the second connecting arm 303 are rotated inward by the rack 308 and the first gear 309.
[0022] Example 2: Please see Figures 1-5 This embodiment provides a PCR tube rack that facilitates the raising of the placement tube 2 for easy PCR experimental operation. The specific idea is as follows: This PCR tube rack, which facilitates PCR experiment operation, includes a mounting box 1 and a tube holder 2. In addition, the PCR tube rack also includes a cover plate 3 on the outer side of one end of the mounting box 1, which can cover the tube holder 2. When it is necessary to perform an experiment on the tube holder 2, the tube holder 2 can be extended from inside the mounting box 1. At the same time as it extends, the cover plate 3 is moved to both sides to expose the tube holder 2 on the outside. The toothed column 4 is set on the inner side of the tray 305 to drive the tube holder 2 to rise vertically.
[0023] In order to drive the toothed column 4, this embodiment provides a lifting component that can lift the toothed column 4 onto the placement tube 2, while ensuring the balance of the placement tube 2 to the greatest extent.
[0024] The lifting component includes: a mounting plate 401 fixedly connected to the inner side of the bottom end of the tray 305; a support frame 402 fixedly connected to the upper surface of the mounting plate 401; a rotating shaft 403 rotatably connected to the inner side of the top end of the support frame 402; a second gear 404 fixedly connected to the outer sides of both ends of the rotating shaft 403, the second gear 404 meshing with one side of the gear column 4; and a long plate 405 fixedly connected to the upper surface of the gear column 4, used to drive the gear column 4 to move vertically, thereby realizing the vertical movement of the placement tube 2. The placement tube 2 is fixedly connected to... On the upper surface of the long plate 405, a third gear 408 is fixedly connected to the outer side of the middle part of the rotating shaft 403 to drive the rotating shaft 403 to rotate. A telescopic rod 406 is installed on the inner side of the tray 305. A rack 407 is fixedly connected to the outer side of one end of the telescopic rod 406. One side of the rack 407 is meshed with the outer side of the third gear 408. A slide rail 409 is installed on the upper surface of the mounting plate 401. The rack 407 is slidably connected to the mounting plate 401 through the slide rail 409 to increase the stability of the movement of the rack 407.
[0025] In the specific implementation process: The user can activate the telescopic rod 406, which increases in length and pushes the rack 407 to slide on one side of the slide rail 409, thereby driving the third gear 408 to rotate. While the third gear 408 rotates, it also drives the rotating shaft 403 to rotate, and at the same time drives the second gears 404 on both sides to rotate. The second gears 404 drive the toothed column 4 to rise vertically, and then drive the long plate 405 and the placement tube 2 to rise vertically through the toothed column 4. The height of the placement tube 2 can be adjusted to facilitate experiments on the placement tube 2. At the same time, through the transmission of the third gear 408, the rotating shaft 403 and the second gear 404, it can be ensured that the toothed column 4 on both sides rises to the same height, thereby ensuring the horizontal state of the long plate 405 and the placement tube 2.
[0026] Working principle: Based on Example 1, this PCR tube rack, which facilitates PCR experimental operations, uses a lifting cylinder 307 to push the tray 305 vertically upward, causing the gear 308 and the first gear 309 to rotate, thus rotating the sector gear 301, the first connecting arm 302, and the second connecting arm 303 and pushing the third connecting arm 304 out of the tray 305. At the same time, the first connecting arm 302 and the fourth connecting arm 306 work together to move the cover plate 3 to both sides, exposing and raising the placement tube 2. When storing, the tray 305 descends, causing the components to rotate inward and reset. Its advantages are that the placement tube 2 can be automatically raised and exposed through mechanical linkage, which is convenient for quick access and observation during experimental operations. The structure is compact when stored, making operation convenient and space-saving. The mechanical transmission is stable and reliable, which can improve the efficiency and convenience of PCR experiments. The cover plate 3 can isolate dust and debris, preventing them from falling into the placement tube 2 and contaminating the PCR experimental samples, ensuring experimental accuracy. At the same time, it can prevent direct sunlight and reduce accidental collisions, protecting the stability of reagents in the placement tube 2 and the integrity of the tube rack structure.
[0027] Building upon Example 2, this PCR tube rack, designed for ease of PCR experimentation, increases in length after the telescopic rod 406 is activated. This propels the rack 407 to slide on the slide rail 409, rotating the third gear 408. This, in turn, causes the rotating shaft 403 and the two second gears 404 to rotate, vertically raising the toothed column 4 to adjust the height of the placed tube 2. The transmission mechanism, via the third gear 408, rotating shaft 403, and second gears 404, ensures that the toothed columns 4 rise to the same height on both sides, maintaining the long plate 405 horizontally with the placed tube 2. The advantages include precise adjustment of the placed tube 2 height, facilitating experimental operation; a transmission structure ensuring the placed tube 2 remains horizontally stable, preventing inconsistent heights or tilting from affecting experimental accuracy; convenient operation; and high mechanical transmission reliability, effectively improving the convenience and accuracy of PCR experiments.
[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. A PCR tube rack facilitating PCR experiment operation, comprising a mounting box body and a tube placement, characterized in that: The PCR tube rack also includes: The protruding part is located on the inner side of the mounting box; A cover plate is provided on the outer top of the mounting box to cover the placement tube; A tray is provided on the inner side of the top of the mounting box; A lifting component is located on the inside of the tray; The toothed column is slidably disposed on the inner side of the tray, and the toothed column moves vertically on the inner side of the tray.
2. The PCR tube rack facilitating PCR experimental operation according to claim 1, characterized in that: The protruding component includes: A sector gear is rotatably mounted on the inner side of the mounting housing; The first connecting arm is fixedly disposed on one side of the sector gear, and one end of the first connecting arm is connected to one side of the cover plate. The second connecting arm is fixedly disposed on one side of the first connecting arm; The third connecting arm is rotatably disposed on the outside of one end of the second connecting arm, and one side of the third connecting arm is connected to one side of the tray.
3. The PCR tube rack facilitating PCR experimental operation according to claim 2, characterized in that: The inner side of the mounting box is rotatably provided with a fourth connecting arm, and the outer side of the top of the fourth connecting arm is connected to one side of the cover plate.
4. The PCR tube rack facilitating PCR experimental operation according to claim 2, characterized in that: A lifting cylinder is installed on the inner side of the bottom of the mounting box, and the outer side of the end of the lifting cylinder is connected to the lower surface of the tray.
5. The PCR tube rack facilitating PCR experimental operation according to claim 4, characterized in that: A toothed rod is fixedly provided on the lower surface of the tray, and a first gear is fixedly provided on one side of the second connecting arm. One side of the toothed rod is meshed with the first gear.
6. The PCR tube rack facilitating PCR experimental operation according to claim 1, characterized in that: The lifting component includes: The mounting plate is fixedly installed on the inner side of the bottom end of the tray; The support frame is fixedly mounted on the upper surface of the mounting plate; A pivot is rotatably mounted on the inner side of the top end of the support frame; The second gear is fixedly disposed on the outer sides of both ends of the rotating shaft, and the second gear meshes with one side of the gear post; A long plate is fixedly mounted on the upper surface of the toothed column, and a placement tube is mounted on the upper surface of the long plate.
7. The PCR tube rack facilitating PCR experimental operation according to claim 6, characterized in that: A third gear is fixedly installed on the outer side of the middle part of the rotating shaft, and a telescopic rod is installed on the inner side of the tray. A rack is fixedly installed on the outer side of one end of the telescopic rod, and one side of the rack is meshed with the outer side of the third gear.
8. The PCR tube rack facilitating PCR experimental operation according to claim 7, characterized in that: The upper surface of the mounting plate is equipped with a slide rail, and the rack is slidably connected to the mounting plate through the slide rail.