Device for electrically opening centrifugal tube cover

Abstract

The utility model relates to the technical field of sample collection by opening and closing a centrifugal tube cover, and discloses a device for electrically opening a centrifugal tube cover, which comprises a positioning plate, the top of the positioning plate is fixedly connected with an inclined plate, and the bottom of the inclined plate is provided with a driving component for providing power. A sliding column is fixedly connected to the bottom of the driving assembly, a positioning frame is slidably connected to the outer portion of the sliding column, a sliding disc is fixedly connected to the bottom of the sliding column, a spring is arranged in the positioning frame, and rotating plates are rotationally connected to the front side and the rear side of the sliding disc correspondingly. The bottoms of the two rotating plates are rotationally connected with right-angle grabbing plates correspondingly, and the interiors of the two right-angle grabbing plates are rotationally connected with fixing shafts correspondingly. According to the centrifugal tube cover opening and closing device, the centrifugal tube cover is automatically and electrically opened and closed in the whole process, operation is convenient and efficient, manual cover screwing is not needed, manpower is greatly saved, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of collecting samples by opening and closing centrifuge tube covers, in particular to an electric centrifuge tube cover opening device. Background Art

[0002] A centrifuge tube is a common experimental container used in laboratories and industrial applications to separate and analyze liquid suspensions or particulate components. It is usually made of plastic, glass, or steel and can be equipped with a sealing lid or a pressure cap to suit different experimental needs. Centrifuge tubes are divided into three types according to the shape of the bottom: conical, flat, and round. Among them, conical centrifuge tubes are the most commonly used and suitable for most centrifugation operations. There are also many designs of caps, including screw caps and pressure caps. The former can be divided into flat caps and plug caps. In terms of material, plastic centrifuge tubes are widely used due to their transparent or translucent properties, but they are easy to deform and have poor resistance to corrosion from organic solvents; glass centrifuge tubes require rubber pads to prevent breakage during high-speed centrifugation; and steel centrifuge tubes are strong, do not deform, and are resistant to heat, frost, and chemical corrosion.

[0003] However, in the process of collecting samples by opening and closing the centrifuge tube cover, due to the requirements of the experiment or the operating procedures, the tube cover needs to be opened and closed frequently and a large pressure needs to be applied to the tube cover to achieve the sample collection operation. However, when using a traditional puncher to collect samples, a large pressure needs to be applied manually. There is a risk of sample contamination when using the same puncher to collect different samples at the same time. When using the centrifuge tube manual opening and pressing method to collect samples, manual operation requires a large pressure and high labor intensity. Manual operation is not suitable for collecting a large number of samples. Each time the tube cover is opened or closed, a certain amount of time and energy is consumed, and the collection efficiency is low. Especially in experimental scenarios where a large number of centrifuge tubes need to be processed, manual operation will greatly reduce work efficiency and prolong the experimental time. This will not only affect the reliability of the experimental results, but also increase the risk and uncertainty in the experimental process. Therefore, in response to the above shortcomings, an electric centrifuge tube cover opening device is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an electric centrifuge tube cover opening device, which aims to improve the problem in the prior art that some centrifuge tube covers are not convenient to open and close quickly.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The cam is fixedly provided with a driving assembly for providing power; the bottom of the driving assembly is fixedly connected with a sliding column; the outside of the sliding column is slidably connected with a positioning frame; the bottom of the sliding column is fixedly connected with a sliding disk; a spring is provided inside the positioning frame; the front and rear sides of the sliding disk are rotatably connected with a rotating plate; the bottoms of the two rotating plates are rotatably connected with a right-angled grab plate; the insides of the two right-angled grab plates are rotatably connected with a fixed shaft; the inside of the positioning plate is detachably connected with a centrifuge tube;

[0007] As a further description of the above technical solution:

[0008] The driving assembly includes a cylinder, the top of the cylinder is mounted on the bottom of the inclined plate, the output end of the cylinder is fixedly connected to a travel rod, and the bottom of the travel rod is rotatably connected to a connecting frame;

[0009] As a further description of the above technical solution:

[0010] The top of the centrifuge tube is rotatably connected to a tube cover, the top of the centrifuge tube is provided with a sealing groove, and the interior of the tube cover is fixedly connected to a sealing ring;

[0011] As a further description of the above technical solution:

[0012] The outer portion of the sliding plate is slidably connected to the inner portion of the positioning frame, and the outer portion of the rotating plate is slidably connected to the inner portion of the positioning frame;

[0013] As a further description of the above technical solution:

[0014] The adjacent sides of the two fixed shafts are fixedly connected to the front and rear sides of the positioning frame respectively, and the top of the right-angle gripping plate contacts the bottom of the pipe cover;

[0015] As a further description of the above technical solution:

[0016] One end of the spring is fixedly connected to the bottom of the sliding plate, and the other end of the spring is fixedly connected to the inside of the positioning frame;

[0017] As a further description of the above technical solution:

[0018] The outer portion of the sealing ring is slidably connected to the inner portion of the sealing groove, and the outer portion of the tube cover is slidably connected to the inner portion of the centrifuge tube;

[0019] As a further description of the above technical solution:

[0020] The bottom of the positioning frame contacts the top of the tube cover, and the bottom of the connecting frame contacts the top of the positioning frame.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, when the cylinder is started, the stroke rod is pushed to move in the up and down directions, which can drive the positioning frame to move accordingly in the vertical direction. When the sliding column is displaced, the sliding plate moves accordingly. With the cooperation of the spring, the movement of the sliding plate is converted into the rotation of the rotating plate, which in turn drives the right-angle grab plate to rotate around the fixed axis. By controlling the up and down displacement of the cylinder, the right-angle grab plate is first used to hook the tube cover, and then the cylinder is moved upward to open the tube cover. When closing, the cylinder is used to press the positioning frame downward to complete the operation. The whole process realizes the automatic electric opening and closing of the centrifuge tube cover, which is convenient and efficient to operate. There is no need to manually screw the cover, which greatly saves manpower and improves work efficiency.

[0023] 2. In the present invention, the sealing ring slides smoothly within the sealing groove during the opening and closing of the tube cover, ensuring smooth operation. When the tube cover is closed, the sealing ring and the sealing groove fit tightly together to form a reliable sealing structure, effectively preventing the sample in the centrifuge tube from being contaminated by the outside world and avoiding sample leakage, thus ensuring the safety and integrity of the sample and facilitating subsequent experiments and other operations on the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of an electric centrifuge tube cover opening device proposed in the utility model;

[0025] Figure 2 This is a schematic diagram of the right-angle grab plate structure of an electric centrifuge tube cover opening device proposed in the utility model;

[0026] Figure 3 This is a schematic diagram of the positioning frame structure of an electric centrifuge tube cover opening device proposed in the utility model;

[0027] Figure 4 This is a schematic diagram of the tube cover structure of an electric centrifuge tube cover opening device proposed by the utility model;

[0028] Figure 5 This is a schematic diagram of the connection frame structure of an electric centrifuge tube cover opening device proposed by the utility model.

[0029] Legend:

[0030] 1. Positioning plate; 2. Tilt plate; 3. Cylinder; 4. Stroke rod; 5. Connecting frame; 6. Sliding column; 7. Positioning frame; 8. Sliding disk; 9. Spring; 10. Rotating plate; 11. Right-angle grab plate; 12. Fixed shaft; 13. Centrifuge tube; 14. Tube cover; 15. Sealing groove; 16. Sealing ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figures 1 to 3 The present invention provides an embodiment of an electric centrifuge tube cover opening device, comprising a positioning plate 1, the positioning plate 1 being used to determine the placement position of the centrifuge tube 13 and ensure the stability of the centrifuge tube 13 during operation, the top of the positioning plate 1 being fixedly connected to an inclined plate 2, the bottom of the inclined plate 2 being provided with a drive assembly for providing power, the drive assembly comprising a cylinder 3, the top of the cylinder 3 being mounted on the bottom of the inclined plate 2, the output end of the cylinder 3 being fixedly connected to a stroke rod 4, when the cylinder 3 is activated, the cylinder 3 can generate sufficient thrust or pull to push the stroke rod 4 to move in the up and down directions, the bottom of the stroke rod 4 being rotatably connected to a connecting frame 5, the bottom of the drive assembly being fixedly connected to a sliding column 6, the outer portion of the sliding column 6 being slidably connected to a positioning frame 7, when the stroke rod 4 is displaced under the action of the cylinder 3, the connecting frame 5 will move with it and transmit this motion to the positioning frame 7, so that the positioning frame 7 can be displaced in the vertical direction accordingly. The bottom of the connecting frame 5 is in contact with the top of the positioning frame 7.

[0033] Reference Figures 2 to 4 The bottom of the sliding column 6 is fixedly connected to a sliding plate 8. When the sliding column 6 moves up and down, the sliding plate 8 moves accordingly. The outside of the sliding plate 8 is slidably connected to the inside of the positioning frame 7. A spring 9 is provided inside the positioning frame 7. When the sliding plate 8 moves downward, the spring 9 is compressed, storing elastic potential energy. When the external force disappears or changes, the spring 9 releases the elastic potential energy, pushing the sliding plate 8 back to its original position. One end of the spring 9 is fixedly connected to the bottom of the sliding plate 8, and the other end of the spring 9 is fixedly connected to the inside of the positioning frame 7. The front and rear sides of the sliding plate 8 are both rotatably connected to rotating plates 10. The outside of the rotating plate 10 is slidably connected to the inside of the positioning frame 7. The bottoms of the two rotating plates 10 are both rotatably connected to right-angle grab plates 11.

[0034] As the sliding column 6 moves up and down, the sliding disk 8 moves accordingly. With the cooperation of the spring 9, the movement of the sliding disk 8 is converted into the rotation of the rotating plate 10, thereby driving the right-angled gripping plate 11 and completing the gripping and releasing of the tube cover 14. The interiors of both right-angled gripping plates 11 are rotatably connected to a fixed shaft 12, which connects the right-angled gripping plates 11 to the positioning frame 7, allowing the right-angled gripping plates 11 to rotate around it. The adjacent sides of the two fixed shafts 12 are fixedly connected to the front and rear sides of the positioning frame 7, respectively. A centrifuge tube 13 is detachably connected to the interior of the positioning plate 1.

[0035] Reference Figure 1 、 Figure 4 and Figure 5 The top of the centrifuge tube 13 is rotatably connected to a tube cover 14, which seals the sample inside the centrifuge tube 13 to prevent sample leakage and external contamination. The top of the right-angle gripping plate 11 contacts the bottom of the tube cover 14, and the outside of the tube cover 14 is slidably connected to the inside of the centrifuge tube 13. The bottom of the positioning frame 7 contacts the top of the tube cover 14. A sealing groove 15 is provided at the top of the centrifuge tube 13, and a sealing ring 16 is fixedly connected to the inside of the tube cover 14. The outside of the sealing ring 16 is slidably connected to the inside of the sealing groove 15. The sealing ring 16 can slide smoothly in the sealing groove 15 during the opening and closing process of the tube cover 14, and when the tube cover 14 is closed, it fits tightly with the sealing groove 15 to form a reliable sealing structure to prevent the sample in the centrifuge tube 13 from being contaminated or leaking.

[0036] Working principle: When using the electric centrifuge tube cover opening device, first install the centrifuge tube 13 inside the positioning plate 1, and then start the cylinder 3, and use the stroke rod 4 to drive the connecting frame 5 to move, so that the positioning frame 7 can be moved downward, at this time, the bottom of the positioning frame 7 will contact the top of the tube cover 14, and then the sliding column 6 will be moved downward, and at this time, the sliding plate 8 will be moved downward under the action of the sliding column 6, so that the rotating plate 10 can be rotated, and the right-angle grab plate 11 can be driven to rotate around the fixed axis 12, and at this time, the bottom of the right-angle grab plate 11 will hook the tube cover 14, and then the cylinder 3 can be started to move upward, so that the tube cover 14 can be opened, and when closing, the cylinder 3 can be started to press the positioning frame 7 downward on the tube cover 14, so that the tube cover 14 can be closed.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electric centrifuge tube cover opening device, comprising a positioning plate (1), characterized in that: The top of the positioning plate (1) is fixedly connected to an inclined plate (2), the bottom of the inclined plate (2) is provided with a driving assembly for providing power, the bottom of the driving assembly is fixedly connected to a sliding column (6), the outside of the sliding column (6) is slidably connected to a positioning frame (7), the bottom of the sliding column (6) is fixedly connected to a sliding disk (8), the interior of the positioning frame (7) is provided with a spring (9), the front and rear sides of the sliding disk (8) are both rotatably connected to rotating plates (10), the bottoms of the two rotating plates (10) are both rotatably connected to right-angle grab plates (11), the interiors of the two right-angle grab plates (11) are both rotatably connected to fixed shafts (12), and the interior of the positioning plate (1) is detachably connected to a centrifuge tube (13).

2. The electric centrifuge tube cover opening device according to claim 1, characterized in that: The driving assembly comprises a cylinder (3), the top of the cylinder (3) is mounted on the bottom of the inclined plate (2), the output end of the cylinder (3) is fixedly connected to a travel rod (4), and the bottom of the travel rod (4) is rotatably connected to a connecting frame (5).

3. The electric centrifuge tube cover opening device according to claim 2, characterized in that: The top of the centrifuge tube (13) is rotatably connected to a tube cover (14), a sealing groove (15) is provided on the top of the centrifuge tube (13), and a sealing ring (16) is fixedly connected inside the tube cover (14).

4. The electric centrifuge tube cover opening device according to claim 1, characterized in that: The outside of the sliding plate (8) is slidably connected to the inside of the positioning frame (7), and the outside of the rotating plate (10) is slidably connected to the inside of the positioning frame (7).

5. The electric centrifuge tube cover opening device according to claim 3, characterized in that: The adjacent sides of the two fixed shafts (12) are respectively fixedly connected to the front and rear sides of the positioning frame (7), and the top of the right-angle gripping plate (11) contacts the bottom of the pipe cover (14).

6. The electric centrifuge tube cover opening device according to claim 1, characterized in that: One end of the spring (9) is fixedly connected to the bottom of the sliding plate (8), and the other end of the spring (9) is fixedly connected to the inside of the positioning frame (7).

7. The electric centrifuge tube cover opening device according to claim 3, characterized in that: The outside of the sealing ring (16) is slidably connected to the inside of the sealing groove (15), and the outside of the tube cover (14) is slidably connected to the inside of the centrifuge tube (13).

8. The electric centrifuge tube cover opening device according to claim 3, characterized in that: The bottom of the positioning frame (7) contacts the top of the pipe cover (14), and the bottom of the connecting frame (5) contacts the top of the positioning frame (7).

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