Centrifuge tube sediment fixing support

Abstract

The utility model discloses a centrifuge tube sediment fixing support, which belongs to the technical field of centrifuge accessories and comprises a pedestal with the bottom in transmission connection with a motor output shaft of a table centrifuge, and a plurality of tube fixing cylinders obliquely arranged in the pedestal in a circumferential array, each tube fixing cylinder comprises a cylinder shell, sliding grooves are formed in the upper side and the lower side of each cylinder shell, and the tube fixing cylinders are arranged in the sliding grooves. A clamping sliding block is arranged in the sliding groove in a sliding mode, and a clamping block reset piece connected with the clamping sliding block is arranged on the outer wall of the barrel shell. The technical key points are as follows: the centrifugal tube can be fixed by the tube fixing cylinder, so that the centrifugal tube can rotate along with the pedestal for centrifugal separation, and a slidable clamping sliding block is arranged in the tube fixing cylinder, so that the centrifugal tube with any tube diameter within a certain range can be clamped; and the clamping block reset piece can always apply internal thrust to the clamping sliding block, so that the clamping sliding block can clamp and fix the centrifugal tube, and the convenience in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuge accessories, in particular to a centrifuge tube sedimentation fixing bracket. Background Art

[0002] Centrifugal technology has been widely used in biological sciences, especially in the fields of biochemistry and molecular biology research. Each biochemistry and molecular biology laboratory must prepare various types of centrifuges. Centrifugal technology is mainly used for the separation and preparation of various biological samples. The biological sample suspension is placed in a centrifuge tube and rotated at high speed. Due to the huge centrifugal force, the suspended tiny particles (such as organelles, biomacromolecule precipitation, etc.) settle at a certain speed, thereby being separated from the solution.

[0003] The desktop centrifuge has a simple structure and a small size. It is usually found in laboratories and plays a vital role in the experiment. When in use, a centrifuge tube is usually inserted into the rotor structure of the desktop centrifuge, and the material in the centrifuge tube is separated and precipitated by rotation. However, since the slot hole size of the desktop centrifuge used to insert and fix the centrifuge tube is fixed, a matching centrifuge tube of a fixed size needs to be used when in use. Otherwise, the centrifuge tube may not be inserted or may shake after insertion, which brings inconvenience to the user. Therefore, a centrifuge tube precipitation fixing bracket is proposed to address the above problem. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a centrifuge tube sedimentation fixing bracket, which fixes the centrifuge tube through a tube fixing cylinder, so that the centrifuge tube can be rotated together with the pedestal for centrifugal separation. Since a slidable clamping slider is provided in the tube fixing cylinder, the centrifuge tube of any diameter within a certain range can be clamped, and the clamping block reset member can always apply thrust to the clamping slider, so that the clamping slider can clamp and fix the centrifuge tube, which brings convenience to the fixing work of the centrifuge tube and is convenient for daily use by experimenters. It solves the technical problem in the prior art that the slot hole size of the bracket used for plugging and fixing the centrifuge tube is fixed, and a matching fixed-size centrifuge tube is required when in use, which brings inconvenience to the user.

[0005] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0006] A centrifuge tube sedimentation fixing bracket comprises a base, the bottom of which is drivingly connected to the motor output shaft of a desktop centrifuge, and a plurality of tube fixing cylinders which are obliquely arranged in a circular array in the base to fix the centrifuge tubes, wherein the plurality of tube fixing cylinders comprise a cylinder shell, the upper and lower sides of the cylinder shell are provided with slide grooves, a clamping slider is slidably arranged in the slide groove, a clamping block reset piece connected to the clamping slider is arranged on the outer wall of the cylinder shell, and the clamping block reset piece is used to push the clamping slider to reset.

[0007] Through the above-mentioned structural form, the tube fixing cylinder fixes the centrifuge tube so that the centrifuge tube can rotate along with the pedestal for centrifugal separation. Since a slidable clamping slider is provided in the tube fixing cylinder, the centrifuge tube of any diameter within a certain range can be clamped, and the clamping block reset member can always apply thrust to the clamping slider, so that the clamping slider can clamp and fix the centrifuge tube, thereby improving convenience during use and facilitating daily use by experimenters.

[0008] In one possible implementation, the clamping block reset member includes a C-shaped frame, which is installed on the outer wall of the cylinder shell, a guide rod, which is slidably arranged in the C-shaped frame, and one end of which is fixedly connected to the clamping slider, and the other end is fixedly connected to an anti-slip end plate, and a tension spring, which is sleeved outside the guide rod, and one end of which is fixedly connected to the anti-slip end plate, and the other end is fixedly connected to the C-shaped frame.

[0009] Through the above-mentioned structural form, the guide rod and the C-shaped frame can be combined to constrain and guide the sliding of the clamping slider, so that the clamping slider can only slide back and forth along the guide rod to avoid collision with other structures during the sliding process. At the same time, the tension spring can apply forward thrust to the guide rod, and the guide rod transmits the thrust to the anti-slip end plate, so that the anti-slip end plate can clamp the centrifuge tube set in the cylinder shell.

[0010] In a possible implementation, a limit rod is slidably provided in the middle of the C-shaped frame, an end of the limit rod is fixedly connected to a limit end piece, and a diameter of the limit end piece is greater than a diameter of the limit rod.

[0011] Through the above-mentioned structural form, the limiting end piece can constrain the maximum inward stroke of the clamping slider, thereby preventing it from excessively extending inward under the thrust of the tension spring, resulting in the centrifuge tube being unable to be inserted.

[0012] In a possible implementation, when the limiting end piece is in close contact with the outer wall of the C-shaped frame, the tension spring is still in a tensioned state.

[0013] The above-mentioned structural form can ensure that the tension spring can always apply thrust to the clamping slider, so that no matter where it is, it can apply clamping force to the centrifuge tube, thereby clamping and fixing the centrifuge tube.

[0014] In a possible implementation, the inner side surface of the clamping slider is a curved surface, and the upper portion, that is, both sides thereof, are provided with anti-stuck grooves sloping inwards.

[0015] The above structure ensures that the centrifuge tube can be smoothly inserted, and during the insertion process, the contact between the tube wall and the anti-stuck groove applies thrust to the clamping slider, causing the clamping slider to retract, thereby allowing the centrifuge tube to be smoothly inserted.

[0016] In a possible implementation, a friction pad layer is fixedly attached to the inner side surface of the clamping slider, the friction pad layer is a flexible curved sheet structure, and a plurality of transversely arranged and outwardly convex anti-slip lines are formed on its outer surface.

[0017] Through the above-mentioned structural form, the friction force between the clamping slider and the wall of the centrifuge tube can be significantly increased, thereby improving the clamping and fixing effect of the clamping slider on the centrifuge tube.

[0018] In one possible implementation, the base includes a base shell, the bottom cover of the base shell is provided with a bottom plate, a central axis is fixedly provided inside the base, and the central axis and the bottom plate are bolted together, and in addition, a transmission joint for connecting to the motor output shaft of the desktop centrifuge is fixedly provided at the center of the lower end surface of the bottom plate.

[0019] Through the above-mentioned structural form, the transmission connection between the base as a whole and the centrifuge motor can be realized by the transmission joint, so that the centrifuge can drive the tube fixing barrel installed on the base shell to rotate through operation, and centrifuge the material in the centrifuge tube.

[0020] In a possible implementation, an end fixing ring is sleeved on the bottom of the cylinder shell, and one end of the end fixing ring is fixedly connected to the inner wall of the seat shell.

[0021] Through the above-mentioned structural form, the end fixing ring can play a role of restraining and supporting the bottom of the cylinder shell, so that the entire tube fixing cylinder can be firmly installed inside the pedestal.

[0022] In summary, the utility model includes the following beneficial technical effects:

[0023] The centrifuge tube is fixed by the tube fixing cylinder, so that the centrifuge tube can rotate with the base for centrifugal separation. Since a slidable clamping slider is provided in the tube fixing cylinder, it can clamp centrifuge tubes of any diameter within a certain range, and the clamping block reset piece can always apply thrust to the clamping slider, so that the clamping slider can clamp and fix the centrifuge tube, thereby improving convenience during use and facilitating daily use by experimenters. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0027] Figure 3This is a schematic diagram of the structure of the pipe fixing tube of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the clamping block reset member of the utility model;

[0029] Figure 5 It is a schematic diagram of the structure of the anti-slip end piece of the utility model.

[0030] In the figure: 1, pedestal; 11, seat shell; 12, bottom plate; 13, middle axis; 14, transmission joint; 2, tube fixing tube; 21, tube shell; 211, slide groove; 22, clamping slider; 221, anti-stuck groove; 222, friction pad; 23, clamping block reset member; 231, C-shaped frame; 232, guide rod; 233, anti-slip end piece; 234, tension spring; 235, limit rod; 236, limit end piece; 24, end fixing ring. DETAILED DESCRIPTION

[0031] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0032] like Figure 1 - Figure 3 As shown, a centrifuge tube precipitation fixing bracket provided in the present embodiment comprises a pedestal 1, the bottom of which is drivingly connected to the motor output shaft of the desktop centrifuge, and a plurality of tube fixing barrels 2 are obliquely arranged in a circular array in the pedestal 1 for fixing the centrifuge tubes, wherein the plurality of tube fixing barrels 2 comprise a barrel shell 21, and the barrel shell 21 is provided with a slide groove 211 on both the upper and lower sides, and a clamping slider 22 is slidably arranged in the slide groove 211, and a clamping block reset member 23 connected to the clamping slider 22 is arranged on the outer wall of the barrel shell 21, and the clamping block reset member 23 is used to push the clamping slider 22 to reset. Through the above-mentioned structural form, the tube fixing barrel 2 fixes the centrifuge tube, so that the centrifuge tube can rotate with the pedestal 1 for centrifugal separation. Since a slidable clamping slider 22 is arranged in the tube fixing barrel 2, it can clamp centrifuge tubes of any diameter within a certain range, and the clamping block reset member 23 can always apply thrust to the clamping slider 22, so that the clamping slider 22 can clamp and fix the centrifuge tube, thereby improving the convenience during use and facilitating the daily use of the experimenter.

[0033] like Figure 4As shown, the clamping block reset member 23 includes a C-shaped frame 231, which is installed on the outer wall of the cylinder shell 21, a guide rod 232, which is slidably arranged in the C-shaped frame 231, and one end of which is fixedly connected to the clamping slider 22, and the other end is fixedly connected to an anti-slip end plate 233, and a tension spring 234, which is sleeved outside the guide rod 232, and one end of which is fixedly connected to the anti-slip end plate 233, and the other end is fixedly connected to the C-shaped frame 231. Through the above-mentioned structural form, the guide rod 232 and the C-shaped frame 231 can be combined to restrain and guide the sliding of the clamping slider 22, so that the clamping slider 22 can only slide back and forth along the guide rod 232 to avoid collision with other structures during sliding. At the same time, the tension spring 234 can apply a forward thrust to the guide rod 232, and the guide rod 232 transmits the thrust to the anti-slip end plate 233, so that the anti-slip end plate 233 can clamp the centrifuge tube set in the cylinder shell 21.

[0034] Among them, a limiting rod 235 is slidably set in the middle part of the C-shaped frame 231, and the end of the limiting rod 235 is fixedly connected to the limiting end piece 236, and the diameter of the limiting end piece 236 is larger than the diameter of the limiting rod 235. The limiting end piece 236 can constrain the maximum inward stroke of the clamping slider 22 to prevent it from excessively extending inward under the thrust of the tension spring 234, resulting in the inability to insert the centrifuge tube.

[0035] In addition, when the limiting end piece 236 is in close contact with the outer wall of the C-shaped frame 231, the tension spring 234 is still in a tensioned state. This technical solution can ensure that the tension spring 234 can always apply thrust to the clamping slider 22, so that no matter what position it is in, it can apply clamping force to the centrifuge tube, thereby clamping and fixing the centrifuge tube.

[0036] like Figure 5 As shown, the inner side surface of the clamping slider 22 is a curved surface, and the upper part, i.e., both sides, are provided with anti-stuck grooves 221 sloping inward. Through the above-mentioned structural form, it can be ensured that the centrifuge tube can be smoothly inserted, and during the insertion process, the contact between the tube wall and the anti-stuck groove 221 applies an internal thrust to the clamping slider 22, so that the clamping slider 22 retracts, thereby allowing the centrifuge tube to be smoothly inserted.

[0037] In addition, a friction pad layer 222 is fixedly attached to the inner side surface of the clamping slider 22. The friction pad layer 222 is a flexible curved sheet structure, and its outer surface is processed to form a plurality of transversely arranged and outwardly convex anti-slip lines. Through the above-mentioned structural form, the friction force between the clamping slider 22 and the wall of the centrifuge tube can be significantly increased, thereby improving the clamping and fixing effect of the clamping slider 22 on the centrifuge tube.

[0038] like Figure 2As shown, the pedestal 1 includes a pedestal shell 11, the bottom cover of the pedestal shell 11 is provided with a bottom plate 12, a central axis 13 is fixedly provided inside the pedestal 1, and the central axis 13 is bolted to the bottom plate 12. In addition, a transmission joint 14 connected to the motor output shaft of the desktop centrifuge is fixedly provided at the center of the lower end surface of the bottom plate 12. Through the above-mentioned structural form, the transmission connection between the pedestal 1 as a whole and the centrifuge motor can be realized through the transmission joint 14, so that the centrifuge can drive the tube fixing cylinder 2 installed on the pedestal shell 11 to rotate through operation, and centrifuge the material in the centrifuge tube.

[0039] like Figure 2 - Figure 3 As shown, an end fixing ring 24 is sleeved on the bottom of the cylinder shell 21, and one end of the end fixing ring 24 is fixedly connected to the inner wall of the seat shell 11. Through the above-mentioned structural form, the end fixing ring 24 can restrain and support the bottom of the cylinder shell 21, so that the tube fixing cylinder 2 as a whole can be firmly installed inside the pedestal 1.

[0040] The use principle and use process of this utility model:

[0041] The centrifuge tube can be fixed by the tube fixing tube 2, so that the centrifuge tube can rotate along with the pedestal 1 for centrifugal separation. Since a slidable clamping slider 22 is provided in the tube fixing tube 2, it can clamp centrifuge tubes of any diameter within a certain range, and the clamping block reset member 23 can always apply thrust to the clamping slider 22, so that the clamping slider 22 can clamp and fix the centrifuge tube, thereby improving convenience during use and facilitating daily use by experimenters.

[0042] In addition, the inner side surface of the clamping slider 22 is a curved surface, and its upper part, i.e., both sides, are provided with anti-stuck grooves 221 sloping inward. This structural form can ensure that the centrifuge tube can be inserted smoothly, and during the insertion process, the inner thrust is applied to the clamping slider 22 through the contact between the tube wall and the anti-stuck groove 221, so that the clamping slider 22 shrinks inward, thereby allowing the centrifuge tube to be inserted smoothly. In addition, a friction pad layer 222 is fixedly attached to the inner side surface of the clamping slider 22, which can significantly increase the friction between the clamping slider 22 and the wall of the centrifuge tube, thereby improving the clamping and fixing effect of the clamping slider 22 on the centrifuge tube.

[0043] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A centrifuge tube sedimentation fixing bracket, characterized in that: include: A base (1), the bottom of which is drivingly connected to the motor output shaft of the desktop centrifuge; A plurality of tube fixing cylinders (2) are arranged in a circular array and tilted inside the base (1) to fix the centrifuge tubes; The plurality of tube fixing cylinders (2) comprise a cylinder shell (21), wherein the cylinder shell (21) is provided with slide grooves (211) on both upper and lower sides, wherein a clamping slider (22) is slidably arranged in the slide groove (211), and a clamping block reset member (23) connected to the clamping slider (22) is arranged on the outer wall of the cylinder shell (21), wherein the clamping block reset member (23) is used to push the clamping slider (22) to reset.

2. A centrifuge tube sedimentation fixing bracket according to claim 1, characterized in that: The clamping block reset member (23) comprises: A C-shaped frame (231) mounted on the outer wall of the cylinder shell (21); A guide rod (232) is slidably disposed in the C-shaped frame (231), one end of which is fixedly connected to the clamping slider (22) and the other end of which is fixedly connected to an anti-slip end piece (233); The tension spring (234) is sleeved outside the guide rod (232), and one end of the tension spring is fixedly connected to the anti-slip end piece (233), and the other end of the tension spring is fixedly connected to the C-shaped frame (231).

3. A centrifuge tube sedimentation fixing bracket according to claim 2, characterized in that: A limiting rod (235) is slidably disposed in the middle of the C-shaped frame (231), and an end of the limiting rod (235) is fixedly connected to a limiting end piece (236), and the diameter of the limiting end piece (236) is greater than the diameter of the limiting rod (235).

4. A centrifuge tube sedimentation fixing bracket according to claim 3, characterized in that: When the limiting end piece (236) is in close contact with the outer wall of the C-shaped frame (231), the tension spring (234) is still in a tensioned state.

5. The centrifuge tube sedimentation fixing bracket according to claim 1, characterized in that: The inner side surface of the clamping slide block (22) is a curved surface, and the upper part, i.e., both sides thereof, are provided with anti-stuck grooves (221) sloping inwards.

6. A centrifuge tube sedimentation fixing bracket according to claim 1, characterized in that: A friction pad layer (222) is fixedly adhered to the inner side surface of the clamping slider (22); the friction pad layer (222) is a flexible curved sheet structure, and a plurality of transversely arranged and outwardly convex anti-slip patterns are formed on its outer surface through processing.

7. The centrifuge tube sedimentation fixing bracket according to claim 1, characterized in that: The pedestal (1) comprises a pedestal shell (11), the bottom of the pedestal shell (11) is covered with a bottom plate (12), a central axis (13) is fixedly arranged inside the pedestal (1), and the central axis (13) and the bottom plate (12) are connected by bolts, and a transmission joint (14) for connecting to the motor output shaft of the desktop centrifuge is fixedly arranged at the center of the lower end surface of the bottom plate (12).

8. A centrifuge tube sedimentation fixing bracket according to claim 7, characterized in that: An end fixing ring (24) is sleeved on the bottom of the cylinder shell (21), and one end of the end fixing ring (24) is fixedly connected to the inner wall of the seat shell (11).

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