Centrifugal tube cutting equipment

Abstract

The utility model discloses centrifugal tube cutting equipment, which belongs to the technical field of experimental equipment, and comprises a sealing plug, a cutting device, a centrifugal tube cutting device, a centrifugal tube cutting device, a centrifugal tube cutting device and a centrifugal tube cutting device, and is characterized in that the sealing plug is arranged below a to-be-cut position of a centrifugal tube; the centrifugal tube is arranged in the positioning tube and rotates in the positioning tube; the cutting mechanism is arranged on the positioning tube, axially moves on the positioning tube and is used for cutting the centrifugal tube; the centrifugal tube is sleeved with the adjusting ring in a threaded mode, a cutting through groove is axially formed in the side wall of the positioning tube, a tool apron groove used for containing the cutting tool apron is formed in the side wall of the upper end face of the adjusting ring, the cutting tool apron is arranged in the tool apron groove, a blade is installed on the cutting tool apron, and a threaded hole is formed in the side wall of the adjusting ring. An adjusting bolt penetrates through the threaded hole to be arranged in the connecting hole in the cutting tool apron. Through the design of the sealing plug 1, the cell sap in the centrifugal tube is effectively isolated in the cutting process, and the risk of cell sap pollution caused by cutting operation is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of experimental equipment, and particularly relates to a centrifuge tube cutting device. Background Art

[0002] Centrifuge tubes are commonly used laboratory consumables, mainly used in centrifugation separation experiments. They are designed to hold liquid samples and can withstand the corresponding centrifugal force without breaking when rotating at high speed in a centrifuge.

[0003] Currently, when using centrifuge tubes in the laboratory, when the remaining cell liquid in the centrifuge tube is too little relative to the overall volume of the centrifuge tube, it needs to be transferred to a small EP tube for storage, which can save space. However, during the transfer process, the cell liquid in the centrifuge tube is likely to spill and be contaminated. Therefore, it is necessary to cut the too-long centrifuge tube (15 ml) to reduce its size for easy storage. Existing cutting tools are likely to contaminate the cell liquid, so a cutting device that can reduce the contamination of cell liquid during the cutting of centrifuge tubes is needed to improve efficiency. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a centrifuge tube cutting device to solve the problem that when using centrifuge tubes in the laboratory currently, when the remaining cell liquid in the centrifuge tube is too little relative to the overall volume of the centrifuge tube, it needs to be transferred to a small EP tube for storage, which can save space. However, during the transfer process, the cell liquid in the centrifuge tube is likely to spill and be contaminated. Therefore, it is necessary to cut the too-long centrifuge tube (15 ml) to reduce its size for easy storage, and existing cutting tools are likely to contaminate the cell liquid.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A centrifuge tube cutting device includes: a sealing plug, which is arranged below the position where the centrifuge tube is to be cut, and is used for hermetically isolating the remaining liquid in the centrifuge tube;

[0006] A positioning tube, with the centrifuge tube placed inside it and rotating within it;

[0007] A cutting mechanism, which is arranged on the positioning tube and axially moves on the positioning tube for cutting the centrifuge tube;

[0008] The cutting mechanism includes: an adjusting ring, which is threadedly sleeved on the centrifuge tube. A cutting through groove is axially opened on the side wall of the positioning tube. A tool holder groove for accommodating a cutting tool holder is arranged on the side wall of the upper end face of the adjusting ring. The cutting tool holder is placed in the tool holder groove. A blade is installed on the cutting tool holder. A threaded hole is arranged on the side wall of the adjusting ring, and an adjusting bolt passes through the threaded hole and is placed in a connection hole on the cutting tool holder.

[0009] Furthermore, the positioning tube includes: a tube body, at the bottom of the tube body there is a V-shaped positioning groove for positioning the bottom of the centrifuge tube, at the top of the centrifuge tube there is a positioning tube cap for cooperating with the top of the tube body for positioning, the outer wall of the positioning tube cap fits with the inner wall of the tube body, and the positioning tube cap is threadedly connected to the centrifuge tube.

[0010] Furthermore, at the top of the positioning tube cap there is an L-shaped driving part for assisting in driving the centrifuge tube to rotate.

[0011] Furthermore, it further includes a locking tube cap, the locking tube cap is installed at the upper end of the tube body for preventing the tube body from separating from the centrifuge tube, and the locking tube cap is provided with an avoidance groove for the L-shaped driving part to pass through.

[0012] Furthermore, it further includes a driving rod, one end of the driving rod passes through the central positions of the locking tube cap and the positioning tube cap and is placed inside the centrifuge tube, and the sealing plug is connected to the driving rod by a magnetic attraction method.

[0013] Furthermore, at the other end of the driving rod there is a driving groove or a driving handle.

[0014] Furthermore, the sealing plug includes: a sealing disc, at the central position of the end face of the sealing disc there is a connecting column, both the end of the connecting column and one end of the driving rod are provided with magnetic attraction structures for mating connection, and on the side wall of the sealing disc there is a sealing rubber ring for contacting and sealing the inside of the centrifuge tube.

[0015] Furthermore, one end of the driving rod is provided with a non-circular driving groove, and the shape of the connecting column matches the shape of the non-circular driving groove.

[0016] Furthermore, the sealing rubber ring is detachably installed on the side wall of the sealing disc.

[0017] Furthermore, the thickness of the sealing rubber ring gradually becomes thinner from the inside to the outside.

[0018] Compared with the prior art, the present utility model provides a centrifuge tube cutting device, which has the following beneficial effects:

[0019] 1. Reducing the risk of contamination: The design of the sealing plug effectively isolates the cell liquid in the centrifuge tube during the cutting process, reducing the risk of cell liquid contamination caused by the cutting operation; the sealing rubber ring enhances the sealing effect and further ensures the safety of the cell liquid.

[0020] 2. Improving the cutting accuracy: The use of the positioning tube ensures the stable positioning of the centrifuge tube during the cutting process, improving the cutting accuracy; the V-shaped positioning groove and the positioning tube cap provide stable support and positioning, which helps to maintain the perpendicularity of the centrifuge tube.

[0021] 3. Simplify the operation process: The adjusting ring of the cutting mechanism can easily adjust the cutting position by rotation, with simple and fast operation; the design of the adjusting bolt enables fine adjustment of the blade position to facilitate adaptation to centrifuge tubes of different sizes; the setting of the L-shaped driving part makes it more convenient to manually rotate the centrifuge tube.

[0022] 4. Enhance safety: The combined use of the locking tube cap and the avoidance groove can effectively prevent the centrifuge tube from accidentally falling off during the cutting process; the magnetic connection between the driving rod and the sealing plug not only facilitates operation but also provides additional safety protection during the cutting process.

[0023] 5. Improve work efficiency: The overall design of the device makes the cutting process of the centrifuge tube more efficient, saving time for laboratory technicians; the matching design of the non-circular driving groove and the connecting column ensures a stable connection between the sealing plug and the driving rod, and the driving rod can be conveniently taken out through the magnetic attraction design, leaving the sealing plug inside the centrifuge tube.

[0024] 6. Facilitate maintenance: The detachable design of the sealing rubber ring facilitates regular replacement and cleaning, extending the service life of the equipment; the design of the thickness change of the sealing rubber ring helps to improve the sealing performance while also facilitating installation and disassembly.

[0025] Through the above technical solutions, this centrifuge tube cutting device not only solves the problems that may be encountered when cutting centrifuge tubes in the laboratory, but also improves the safety and efficiency of the entire operation process, and has a significant improvement effect on laboratory management and experimental operations. Description of the Drawings

[0026] The drawings are used to provide further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0027] Figure 1 is a schematic structural diagram of the present utility model;

[0028] Figure 2 is a cross-sectional view of the present utility model;

[0029] Figure 3 is the present utility model Figure 2 partial enlarged view of A in;

[0030] In the figure: sealing plug 1, sealing disc 11, connecting column 12, sealing rubber ring 13, positioning tube 2, tube body 21, V-shaped positioning groove 22, positioning tube cap 23, L-shaped driving part 24, locking tube cap 25, avoidance groove 26, cutting mechanism 3, adjusting ring 31, cutting through groove 32, tool holder groove 33, cutting tool holder 34, blade 35, adjusting bolt 36, driving rod 4. Specific implementation mode

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] Please refer to Figures 1-3 , the present utility model provides a technical solution: a centrifuge tube cutting device includes: a sealing plug 1, the sealing plug 1 is arranged below the position of the centrifuge tube to be cut, and is used for hermetically isolating the remaining liquid in the centrifuge tube;

[0033] A positioning tube 2, the centrifuge tube is placed inside the positioning tube 2 and rotates therein;

[0034] A cutting mechanism 3, the cutting mechanism 3 is arranged on the positioning tube 2 and axially moves on the positioning tube 2, and is used for cutting the centrifuge tube;

[0035] The cutting mechanism 3 includes: an adjusting ring 31, the adjusting ring 31 is threadedly sleeved on the centrifuge tube, a cutting through groove 32 is axially opened on the side wall of the positioning tube 2, a tool holder groove 33 for accommodating a cutting tool holder 34 is arranged on the side wall of the upper end surface of the adjusting ring 31, the cutting tool holder 34 is placed in the tool holder groove 33, a blade 35 is installed on the cutting tool holder 34, a threaded hole is arranged on the side wall of the adjusting ring 31, and an adjusting bolt 36 passes through the threaded hole and is placed in a connecting hole on the cutting tool holder 34.

[0036] Among them, a locking ring can also be included. The locking ring is threadedly sleeved on the centrifuge tube. When cutting is required, the locking ring moves to the lower part of the adjusting ring 31 and fits with it, which can prevent the adjusting ring 31 from moving. The function of the cutting through groove 32 can provide space for the blade 35 to cut, and at the same time can provide an experimenter with the position of observing the remaining liquid and the position of the sealing plug. The cutting tool holder 34 is only inserted into the tool holder groove 33, and a magnetic attraction structure can be set for preliminary positioning connection. The cutting tool holder 34 can be taken out of the tool holder groove 33 for easy replacement. The cutting tool holder 34 and the blade 35 can be integrally injection molded or connected by screws. The present application does not disclose the scheme or drawing of screw connection. This method is a conventional technical means in the art; the adjusting bolt 36 passes through the threaded hole and is placed in the connecting hole on the cutting tool holder 34, which can effectively control the directional movement of the cutting tool holder 34.

[0037] The positioning tube 2 includes: a tube body 21, a V-shaped positioning groove 22 for positioning the bottom of the centrifuge tube is provided at the bottom of the tube body 21, a positioning tube cap 23 for cooperating with the top of the tube body 21 for positioning is provided at the top of the centrifuge tube, the outer wall of the positioning tube cap 23 fits against the inner wall of the tube body 21, and the positioning tube cap 23 is threadedly connected to the centrifuge tube.

[0038] The application ensures the stable positioning of the centrifuge tube during the cutting process by using the positioning tube 2, improving the cutting accuracy; the V-shaped positioning groove 22 and the positioning tube cap 23 provide stable support and positioning, which helps to maintain the perpendicularity of the centrifuge tube.

[0039] An L-shaped driving part 24 for assisting in driving the centrifuge tube to rotate is provided at the top of the positioning tube cap 23. With this setting, the L-shaped driving part 24 makes it more convenient to manually rotate the centrifuge tube.

[0040] A locking tube cap 25 is further included. The locking tube cap 25 is installed at the upper end of the tube body 21 to prevent the tube body 21 from separating from the centrifuge tube. The locking tube cap 25 is provided with an avoidance groove 26 for the L-shaped driving part 24 to pass through. The combined use of the locking tube cap 25 and the avoidance groove 26 can effectively prevent the centrifuge tube from accidentally falling off during the cutting process. The inner wall of the locking tube cap 25 fits against the outer wall of the positioning tube cap 23 for positioning.

[0041] A driving rod 4 is further included. One end of the driving rod 4 passes through the central positions of the locking tube cap 25 and the positioning tube cap 23 and is placed inside the centrifuge tube. The sealing plug 1 is connected to the driving rod 4 by a magnetic attraction method. The matching design of the non-circular driving groove and the connecting column 12 ensures the stable connection between the sealing plug 1 and the driving rod 4. The driving rod 4 can be conveniently taken out through the magnetic attraction design, so that the sealing plug remains inside the centrifuge tube. The other end of the driving rod 4 is provided with a driving groove or a driving handle.

[0042] The sealing plug 1 includes: a sealing disc 11, a connecting column 12 is provided at the center position of the end face of the sealing disc 11. Magnetic attraction structures are provided at the end of the connecting column 12 and one end of the driving rod 4 for mating connection. A sealing rubber ring 13 is provided on the side wall of the sealing disc 11 for contacting and sealing the inside of the centrifuge tube. The sealing rubber ring 13 enhances the sealing effect and further ensures the safety of the cell liquid.

[0043] A non-circular driving groove is provided at one end of the driving rod 4, and the shape of the connecting column 12 matches the shape of the non-circular driving groove. The matching design of the non-circular driving groove and the connecting column 12 ensures the stable connection between the sealing plug 1 and the driving rod 4. The driving rod 4 can be conveniently taken out through the magnetic attraction design, so that the sealing plug remains inside the centrifuge tube.

[0044] The sealing rubber ring 13 is detachably mounted on the side wall of the sealing disc 11. The thickness of the sealing rubber ring 13 gradually thins from the inside to the outside. The design of the thickness change of the sealing rubber ring 13 helps to improve the sealing performance and is also convenient for installation and disassembly.

[0045] Working process:

[0046] First, the operator inserts the driving rod 4 into the positioning pipe cap 23, then inserts the connecting column 12 on the sealing disc 11 into the non-circular driving groove at one end of the driving rod 4, and then inserts the positioning pipe cap 23 into the centrifuge tube. At this time, the inner wall of the positioning pipe cap 23 is threadedly connected to the outer wall of the centrifuge tube, and there is a fit or a gap between the outer wall of the positioning pipe cap 23 and the tube body 21. Finally, the locking pipe cap 25 is installed on the top of the tube body 21; the driving rod 4 is adjusted to drive the sealing plug 1 to the lower part of the position where the centrifuge tube is to be cut, then the adjusting ring 31 is adjusted to drive the blade 35 above the sealing plug 1, and the adjusting bolt 36 is rotated to drive the blade 35 to contact the centrifuge tube. Subsequently, the L-shaped driving part 24 is driven to drive the centrifuge tube to rotate. At this time, the tube body 21 is held by hand, and the tube body 21 and the centrifuge tube rotate relative to each other to achieve cutting. The adjusting bolt 36 is gradually rotated to drive the blade 35 to move radially, and finally cutting is achieved; after cutting is completed, the centrifuge tube is taken out, and at this time the sealing plug remains in the centrifuge tube. The sealing plug 1 is taken out to bring out the debris generated during the cutting process, or the debris on the sealing plug is first cleaned and then taken out.

[0047] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A centrifuge tube cutting device, characterized in that, Comprising: A sealing plug (1), which is arranged below the cutting position of the centrifuge tube and is used for sealing and isolating the remaining liquid in the centrifuge tube; A positioning tube (2), the centrifuge tube is placed inside the positioning tube (2) and rotates therein; A cutting mechanism (3), which is arranged on the positioning tube (2) and axially moves on the positioning tube (2) for cutting the centrifuge tube; The cutting mechanism (3) includes: an adjusting ring (31), the adjusting ring (31) is threadedly sleeved on the centrifuge tube, a cutting through groove (32) is axially opened on the side wall of the positioning tube (2), a tool holder groove (33) for accommodating a cutting tool holder (34) is arranged on the side wall of the upper end face of the adjusting ring (31), the cutting tool holder (34) is placed in the tool holder groove (33), a blade (35) is installed on the cutting tool holder (34), a threaded hole is arranged on the side wall of the adjusting ring (31), and an adjusting bolt (36) passes through the threaded hole and is placed in a connection hole on the cutting tool holder (34).

2. The centrifugal tube cutting device according to claim 1, characterized in that: The positioning tube (2) includes: a tube body (21), a V-shaped positioning groove (22) for positioning the bottom of the centrifuge tube is arranged at the bottom of the tube body (21), a positioning tube cap (23) for cooperating with the top of the tube body (21) for positioning is arranged at the top of the centrifuge tube, the outer wall of the positioning tube cap (23) fits with the inner wall of the tube body (21), and the positioning tube cap (23) is threadedly connected with the centrifuge tube.

3. The centrifugal tube cutting device according to claim 2, characterized in that: An L-shaped driving part (24) for assisting in driving the centrifuge tube to rotate is arranged at the top of the positioning tube cap (23).

4. A centrifuge tube cutting device according to claim 3, characterized in that: A locking tube cap (25) is further included, the locking tube cap (25) is installed at the upper end of the tube body (21) to prevent the tube body (21) from separating from the centrifuge tube, and the locking tube cap (25) is provided with an avoidance groove (26) for the L-shaped driving part (24) to pass through.

5. A centrifuge tube cutting device according to claim 4, characterized in that: A driving rod (4) is further included, one end of the driving rod (4) passes through the central positions of the locking tube cap (25) and the positioning tube cap (23) and is placed inside the centrifuge tube, and the sealing plug (1) is connected to the driving rod (4) by a magnetic attraction method.

6. The centrifugal tube cutting device according to claim 5, wherein: The other end of the driving rod (4) is provided with a driving groove or a driving handle.

7. An apparatus for cutting centrifuge tubes according to claim 5, characterized in that: The sealing plug (1) includes: a sealing disc (11), a connecting column (12) is arranged at the center position of the end face of the sealing disc (11), magnetic attraction structures are arranged at the ends of the connecting column (12) and one end of the driving rod (4) and are connected in a matching manner, and a sealing rubber ring (13) is arranged on the side wall of the sealing disc (11) for contacting and sealing with the inside of the centrifuge tube.

8. The centrifugal tube cutting device according to claim 7, wherein: One end of the driving rod (4) is provided with a non-circular driving groove, and the shape of the connecting column (12) matches the shape of the non-circular driving groove.

9. An apparatus for cutting a centrifuge tube according to claim 7, characterized in that: The sealing rubber ring (13) is detachably installed on the side wall of the sealing disc (11).

10. A centrifuge tube cutting device according to claim 7, characterized in that: The thickness of the sealing rubber ring (13) gradually becomes thinner from the inside to the outside.

Images