Novel eight-connection pipe cover

By designing a novel eight-tube cap with fixed and synchronized components, the problem of inconvenient operation of PCR eight-tube caps was solved, enabling efficient and safe experimental operation and ensuring tight sealing of the caps and accuracy of experimental results.

CN223765089UActive Publication Date: 2026-01-06TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
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Patent Information

Application Number
CN202520459695.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-01-06
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

The existing 8-tube PCR caps are inconvenient to use, especially in high-throughput experiments. The individual capping design leads to low operational efficiency and risks of incomplete sealing and sample leakage, which affects experimental results and safety.

Method used

A novel eight-tube cap is designed, comprising a fixing component and a synchronization component. The fixing component is used to securely place the eight tubes, while the synchronization component is used to open or close all the cap plates at once. The cap pressing component enables unified clamping and individual operation of the eight tubes.

Benefits of technology

It improves operational efficiency, ensures tight sealing of the tube cap, reduces experimental errors and uncertainties, prevents sample leakage and contamination, and improves the accuracy and safety of experiments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel eight-connection pipe cover which comprises a fixing assembly used for placing the upper end of an eight-connection pipe, covering and pressing assemblies used for covering and pressing the eight-connection pipe are sequentially and evenly arranged on the upper surface of the fixing assembly along the long side face, and a synchronous assembly capable of being integrally opened is arranged on the bottom face of the fixing assembly. The fixing assembly comprises a mounting plate, a covering and pressing assembly is mounted outside a mounting block in a hinged mode, the covering and pressing assembly comprises a covering and pressing plate, a hinge block is fixedly mounted on the bottom face of the other end of the covering and pressing plate, and a clamping block is fixedly mounted on the inner side of a fixing protruding strip and mounted between clamping grooves in a clamped mode; the synchronous assembly comprises a drawing plate and a second spring, sliding grooves are formed in the two sides of the drawing plate, and the second spring is fixedly installed between the limiting column and the inner wall of the sliding groove. According to the utility model, the tube cover of the eight-connection tube can be pressed at one time through the covering and pressing assembly, all the covering and pressing plates can be opened at one time through the synchronous assembly, and the covering and pressing plates can also be operated independently, so that sample leakage or pollution caused by loosening of the tube cover in the PCR process is effectively prevented.
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Description

Technical Field

[0001] The embodiments of this utility model belong to the field of pipe cap technology, and more specifically, relate to a novel eight-piece pipe cap. Background Technology

[0002] Quantitative real-time PCR (qPCR) is a new nucleic acid detection technology that has been developed abroad in recent years. Based on conventional PCR, this technology adds a specific probe labeled with a fluorescent gene. During the PCR process, the changes in fluorescence signal in the reaction system are continuously detected. After the reaction is completed, the initial DNA copy number is automatically calculated. This requires the use of 8-tube PCR. Nucleic acid samples are added to the 8-tube PCR. After the timed and quantitative PCR is completed, the eight DNA samples in the 8-tube PCR need to be extracted separately.

[0003] The existing eight-tube strips are connected together, and the caps are either a single strip or a single well. There is no product that combines both. The single strip cap makes it difficult to extract individual DNA, which can lead to confusion, mixing of different DNAs, affecting experimental results, and causing waste.

[0004] The widely used PCR eight-tube strips currently have the following technical problems in experimental operation: Due to their miniaturized design, there are inconveniences in opening and closing the caps, a phenomenon particularly prominent in cap-separated PCR eight-tube strips. Especially in high-throughput experiments, the cap system with an independent cap design requires manual capping of each reaction well individually. This operation not only significantly reduces experimental efficiency but may also lead to incomplete cap sealing, resulting in experimental accidents such as sample leakage, ultimately increasing the risk of experimental failure. Utility Model Content

[0005] In view of the above-mentioned defects or improvement needs of the existing technology, the present invention provides a novel eight-tube cap, including a fixing component for placing the upper end of the eight tubes, and a pressing component for pressing the eight tubes is arranged evenly along the long side of the upper surface of the fixing component. A synchronization component that can be opened as a whole is provided on the bottom surface of the fixing component.

[0006] The fixing component includes a mounting plate, on one side of which slots are evenly provided in sequence, and on the other side of which mounting blocks are evenly provided in sequence, and limiting posts are fixedly installed on both sides of the bottom of the mounting plate.

[0007] The mounting block is externally hinged to a cover pressure assembly, which includes a cover pressure plate, a hinge block, and a locking block. One end of the cover pressure plate is provided with a fixing protrusion. The hinge block is fixedly installed on the bottom surface of the other end of the cover pressure plate. The locking block is fixedly installed on the inner side of the fixing protrusion and is engaged between the locking slots.

[0008] The synchronization component includes a pull-out plate and a second spring. The pull-out plate has sliding grooves on both sides. The second spring is fixedly installed between the limiting post and the inner wall of the sliding groove. The limiting post is slidably engaged inside the sliding groove.

[0009] Preferably, positioning sleeves are evenly arranged on the surface of the mounting plate, and insertion grooves corresponding to the eight-tube connector are opened on the surface of the mounting plate. A protruding ring is installed on the upper part of each insertion groove, and a first spring is fixedly installed on the surface of the mounting plate and the bottom surface of the cover plate.

[0010] Preferably, the bottom surface of the cover plate is provided with a pipe cover groove, which matches the convex ring.

[0011] Preferably, a positioning post is fixedly installed on the bottom surface of the end of the cover plate, and the positioning post can be inserted into the inside of the positioning sleeve.

[0012] Preferably, mounting bolts are provided on both sides of the upper part of the hinge block, and the mounting bolts are fixedly installed with the cover plate. A rotating shaft is provided in the middle of the hinge block, and the rotating shaft is rotatably installed with the mounting block.

[0013] Preferably, a pressing block is fixedly installed on the upper surface of the cover plate.

[0014] Preferably, the pull-out plate is a T-shaped plate, and a handle groove is provided in the middle of the pull-out plate.

[0015] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:

[0016] (1) The design of the capping assembly of this utility model can press the caps of the eight tubes together at once without having to operate them one by one, which greatly improves the efficiency of operation. The design of the synchronization assembly allows all the capping plates to be opened at once when the eight tubes are taken out, which further saves time. The capping plates can also be operated independently. Operators can open a certain capping plate as needed to extract or check a certain sample individually. This makes the device more advantageous when handling complex experiments or when individual sample analysis is required. The capping assembly can tightly cover and press the caps of the eight tubes together, effectively preventing sample leakage or contamination caused by loose caps during PCR.

[0017] (2) The design of the fixing component makes the eight tubes stable in the slot, which is not easy to slip or get confused. The design of the cover pressing component and the synchronization component makes the whole operation process simpler and faster, reducing the difficulty of operation. By ensuring that each eight tube is stable in the slot and the tube cover is tightly pressed, the error and uncertainty in the experiment can be reduced, thereby improving the accuracy of the experiment. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the present utility model;

[0019] Figure 2 This is a structural diagram of the fixing component of this utility model;

[0020] Figure 3 This is a structural diagram of the cover pressure assembly of this utility model;

[0021] Figure 4 This is a structural diagram of the synchronization component of this utility model;

[0022] Figure 5 The diagram shows the state of the synchronization component of this utility model.

[0023] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-fixing component; 11-mounting plate; 111-slot; 112-mounting block; 12-positioning sleeve; 13-insertion slot; 14-protruding ring; 15-first spring; 16-limiting post; 2-covering assembly; 21-covering plate; 211-fixing protrusion; 212-pipe cover slot; 213-positioning post; 22-hinge block; 221-mounting bolt; 222-rotating shaft; 23-locking block; 24-pressing block; 3-synchronization assembly; 31-pull-out plate; 311-handle slot; 312-sliding groove; 32-second spring. Detailed Implementation

[0024] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0028] A new type of eight-joint pipe cap, including as follows Figures 1-5 As shown, in this embodiment of the utility model, a fixing component 1 is provided for placing the upper end of the eight-tube connector. A covering component 2 for covering the eight-tube connector is uniformly arranged along the long side of the upper surface of the fixing component 1. A synchronization component 3 that can be opened as a whole is provided on the bottom surface of the fixing component 1.

[0029] The fixing component 1 includes a mounting plate 11. One side of the mounting plate 11 is provided with slots 111 evenly in sequence, and the other side of the mounting plate 11 is provided with mounting blocks 112 evenly in sequence. Limiting posts 16 are fixedly installed on both sides of the bottom of the mounting plate 11.

[0030] The mounting block 112 is externally hinged to a cover pressure assembly 2, which includes a cover pressure plate 21, a hinge block 22, and a locking block 23. One end of the cover pressure plate 21 is provided with a fixing protrusion 211. The hinge block 22 is fixedly installed on the bottom surface of the other end of the cover pressure plate 21. The locking block 23 is fixedly installed on the inner side of the fixing protrusion 211 and is snapped into the slots 111.

[0031] The synchronization component 3 includes a pull plate 31 and a second spring 32. The pull plate 31 has sliding grooves 312 on both sides. The second spring 32 is fixedly installed between the limiting post 16 and the inner wall of the sliding groove 312. The limiting post 16 is slidably engaged inside the sliding groove 312.

[0032] In this embodiment, the PCR eight-tube bundle is placed in the slots 111 on the mounting plate 11 of the fixing assembly 1, ensuring that each tube is securely locked in the slot 111. The hinge block 22 of the capping assembly 2 is hinged to the mounting block 112, so that the capping plate 21 can cover the upper end of the eight-tube bundle. Pressing down on one end of the capping plate 21 causes the locking block 23 on the inner side of the fixing protrusion 211 to engage between adjacent slots 111, thereby fixing the position of the capping plate 21. Pressing down on the capping plate 21 continues until it completely covers the tube bundle. The process involves simultaneously opening and closing the caps on the eight-tube connector: When the eight-tube connector needs to be removed, first pull the pull plate 31 of the synchronizing assembly 3, causing the limiting post 16 to slide within the sliding groove 312. Simultaneously, the second spring 32 is stretched. When the pull plate 31 moves to a certain position, the capping assembly 2 automatically opens due to the loss of support from the limiting post 16, allowing for easy removal of the eight-tube connector. The reset phase involves releasing the pull plate 31 after removing the eight-tube connector. The second spring 32 returns to its original state, causing the pull plate 31 and the limiting post 16 to return to their original positions, preparing for the next... In preparation for use, the capping assembly 2 allows for the simultaneous tightening of the caps on all eight tubes, eliminating the need for individual operation and significantly improving efficiency. The synchronization assembly 3 enables the simultaneous opening of all capping plates 21 when removing the eight tubes, further saving time. Capping plates 21 can also be operated independently, allowing operators to open specific plates for individual sample extraction or examination. This makes the device more advantageous for handling complex experiments or when individual sample analysis is required. The capping assembly 2 tightly covers and tightens the caps on the eight tubes, effectively preventing sample leakage or contamination during PCR due to loose caps. The fixing assembly 1 ensures the eight tubes are securely placed in the slot 111, preventing slippage or confusion. The combined design of the capping assembly 2 and synchronization assembly 3 simplifies and speeds up the entire operation, reducing operational difficulty. By ensuring each eight tube is securely placed in the slot 111 and its cap is tightly tightened, errors and uncertainties during the experiment are reduced, thereby improving experimental accuracy.

[0033] Specifically, positioning sleeves 12 are evenly arranged on the surface of the mounting plate 11, and insertion grooves 13 corresponding to the eight-tube connector are opened on the surface of the mounting plate 11. A protruding ring 14 is installed on the upper part of each insertion groove 13, and a first spring 15 is fixedly installed on the surface of the mounting plate 11 and the bottom surface of the cover plate 21.

[0034] like Figure 2As shown, in this embodiment, the mounting plate 11 provides a stable support platform. The positioning sleeves 12 are evenly arranged on the surface of the mounting plate 11 to accurately position the eight tubes, ensuring that each tube can be accurately placed in the insertion slot 13. The insertion slot 13 corresponds one-to-one with the eight tubes, providing a suitable insertion space for the eight tubes. The design of the insertion slot 13 should take into account the size and shape of the eight tubes to ensure their stable placement. The convex ring 14 is installed on the upper part of the insertion slot 13 to restrict the movement of the eight tubes in the vertical direction. At the same time, it cooperates with the cover plate 21 to form a clamping force on the tube cover. The first spring 15 is fixedly installed between the surface of the mounting plate 11 and the bottom surface of the cover plate 21, providing a certain elastic support for the cover plate 21. When the cover plate 21 is pressed down, the first spring 15 is compressed; when the cover plate 21 is released, the first spring 15 returns to its original state, pushing the cover plate 21 back to the initial position.

[0035] Specifically, a pipe cover groove 212 is provided on the bottom surface of the cover plate 21, and the pipe cover groove 212 matches the convex ring 14.

[0036] In this embodiment, the shape and size of the tube cap groove 212 are precisely designed to match the convex ring 14. When the cap plate 21 is pressed down and covers the tube cap of the eight-tube connector, the tube cap groove 212 will tightly wrap around the convex ring 14 to form a stable sealing structure. Due to the tight fit between the tube cap groove 212 and the convex ring 14, there is almost no gap between them, which effectively prevents sample leakage or contamination that may occur during the experiment. The convex ring 14 serves as a support point, which allows the cap plate 21 to remain horizontal when covering the tube cap, avoiding the risk of uneven pressing or damage to the tube cap due to unevenness.

[0037] Specifically, a positioning post 213 is fixedly installed on the bottom surface of the end of the cover plate 21, and the positioning post 213 can be inserted into the inside of the positioning sleeve 12.

[0038] like Figure 4 As shown, in this embodiment, the positioning post 213 is precisely designed and installed on the bottom end of the cover plate 21, while the positioning sleeve 12 is correspondingly set on the mounting plate 11, corresponding one-to-one with the position of the eight-tube connector. When the cover plate 21 is pressed down, the positioning post 213 will accurately insert into the corresponding positioning sleeve 12, thereby ensuring that the cover plate 21 can correctly cover the tube cap of the eight-tube connector. The cooperation between the positioning post 213 and the positioning sleeve 12 not only provides additional support points, but also enhances the stability of the cover plate 21 during the pressing process, which helps to prevent the cover plate 21 from shifting or tilting during the pressing process, thereby ensuring that the tube cap of each eight-tube connector can be pressed evenly and tightly.

[0039] Specifically, mounting bolts 221 are provided on both sides of the upper part of the hinge block 22. The mounting bolts 221 are fixedly installed with the cover plate 21. A rotating shaft 222 is provided in the middle of the hinge block 22. The rotating shaft 222 is rotatably installed with the mounting block 112.

[0040] like Figure 3 As shown in this embodiment, mounting bolts 221 are provided on both sides of the upper part of the hinge block 22 for fixing the hinge block 22 and the cover plate 21 together. The mounting bolts 221 ensure a firm connection between the hinge block 22 and the cover plate 21, so that the cover plate 21 can remain stable during rotation. A rotating shaft 222 is provided in the middle of the hinge block 22, which is a key component for realizing the rotational movement of the cover plate 21. The rotating shaft 222 is usually designed as a cylinder and has a certain strength and wear resistance to ensure long-term reliability. Through the cooperation of the rotating shaft 222 and the mounting block 112, the cover plate 21 can rotate smoothly relative to the mounting plate 11.

[0041] Specifically, a pressing block 24 is fixedly installed on the upper surface of the cover plate 21.

[0042] In this embodiment, the pressing block 24 is designed to be cylindrical. When it is necessary to open the cover plate 21 to take out or put in the eight-tube connector, the operator can easily hold the pressing block 24 and then apply upward pressure to make the cover plate 21 rotate around the pivot 222 of the hinge block 22. Since the pressing block 24 provides a larger contact area and a better grip, the operator can complete this operation more effortlessly. When it is necessary to close the cover plate 21, the operator can hold the pressing block 24 and apply downward pressure to make the cover plate 21 rotate in the opposite direction around the pivot 222 to the closed position.

[0043] Specifically, the pull-out plate 31 is a T-shaped plate, and a handle groove 311 is provided in the middle of the pull-out plate 31.

[0044] like Figure 5 As shown, in this embodiment, the pull-out plate 31 is designed as a T-shaped plate, which makes the pull-out plate 31 more stable and has better force distribution during operation. A handle groove 311 is provided in the middle of the pull-out plate 31 to facilitate the operator to hold and pull the pull-out plate 31.

[0045] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A new eight-union cap characterized in that: The application relates to a fixing assembly (1) for placing the upper end of an eight-pipe, the upper surface of the fixing assembly (1) being provided with cover pressing assemblies (2) along the long sides in sequence and uniformly, and the bottom surface of the fixing assembly (1) being provided with a synchronous assembly (3) which can be opened integrally; The fixing assembly (1) comprises a mounting plate (11), one side of the mounting plate (11) being provided with clamping grooves (111) in sequence and uniformly, the other side of the mounting plate (11) being provided with mounting blocks (112) in sequence and uniformly, and the bottom of the mounting plate (11) being fixedly provided with limiting columns (16) on both sides; The mounting blocks (112) are hingedly provided with the cover pressing assemblies (2), the cover pressing assemblies (2) comprising cover pressing plates (21), hinged blocks (22) and clamping blocks (23), one end of the cover pressing plate (21) being provided with a fixed protruding strip (211), the hinged block (22) being fixedly installed on the bottom surface of the other end of the cover pressing plate (21), and the clamping block (23) being fixedly installed on the inner side of the fixed protruding strip (211) and being clamped and installed between the clamping grooves (111). The synchronous assembly (3) comprises a pulling plate (31) and a second spring (32), sliding grooves (312) being formed in the two sides of the pulling plate (31), and the second spring (32) being fixedly installed between the limiting columns (16) and the inner walls of the sliding grooves (312), and the limiting columns (16) being slidingly clamped in the interiors of the sliding grooves (312).

2. A new eight-union cap according to claim 1, characterized in that: The surface of the mounting plate (11) is provided with positioning sleeves (12) in sequence and uniformly, the surface of the mounting plate (11) is provided with pipe insertion grooves (13) corresponding to the eight-pipe, the upper portions of the pipe insertion grooves (13) are fixedly provided with convex rings (14), and the surface of the mounting plate (11) and the bottom surface of the cover pressing plate (21) are fixedly provided with first springs (15).

3. A new eight-union cap according to claim 2, characterized in that: The bottom surface of the cover pressing plate (21) is provided with a pipe cover groove (212) which is matched with the convex rings (14).

4. A new eight-union cap according to claim 2, characterized in that: The end bottom surface of the cover pressing plate (21) is fixedly provided with a positioning column (213) which can be inserted into the interior of the positioning sleeve (12).

5. A new eight-union cap according to claim 1, characterized in that: The upper portions of the hinged blocks (22) are provided with mounting bolts (221) which are fixedly installed on the cover pressing plate (21), the middle portions of the hinged blocks (22) are provided with rotating shafts (222) which are rotatably installed on the mounting blocks (112).

6. A new eight-union cap according to claim 1, characterized in that: The upper surface of the cover pressing plate (21) is fixedly provided with a pressing block (24).

7. A new eight-union cap according to claim 1, characterized in that: The pulling plate (31) is a T-shaped plate, and a handle groove (311) is formed in the middle portion of the pulling plate (31).