Special water bath constant temperature device for centrifugal tube

Abstract

The utility model discloses a special water bath constant temperature device for a centrifugal tube, which comprises a centrifugal tube rack which is arranged in a water bath tank and is driven by a centrifugal driving mechanism to rotate, the centrifugal tube rack is formed by connecting a bottom support plate and an upper positioning plate through a middle connecting rod, and the centrifugal tube is positioned and seated on the bottom support plate through the upper positioning plate; an automatic exhaust valve is arranged on a tank cover of the water bath tank; air driving blades are arranged on the easy air storage plate surfaces of the bottom supporting plate and the upper positioning plate, and under the state that the air driving blades rotate along with the centrifugal tube frame, bubbles accumulated on the easy air storage plate surfaces are dispersed by stirring surrounding water. The air driving blades are arranged on the lower plate faces of the bottom supporting plate and the upper positioning plate respectively to disperse accumulated bubbles and discharge the bubbles through the automatic exhaust valve, and shaking caused by unbalance of centrifugal movement due to bubble accumulation is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of centrifuge tube water bath constant temperature technology, and in particular relates to a special water bath constant temperature device for centrifuge tubes. Background Technology

[0002] In centrifuge tube-specific water bath equipment, when the temperature of the sample requiring water bath centrifugation is high, bubbles will be generated due to heating as the centrifugation water bath operation proceeds. These bubbles tend to accumulate on the lower surface of the bottom support plate and the upper positioning plate of the centrifuge tube rack. These two lower surface plates can be called air-accumulating plates. When bubbles accumulate, it will cause the centrifuge to become unbalanced and shake, affecting the water bath centrifugation effect and safety. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a special water bath constant temperature device for centrifuge tubes. By setting air-driving blades on the lower surface of the bottom support plate and the upper positioning plate respectively, the accumulated air bubbles are dispersed and discharged through an automatic exhaust valve, so as to avoid the accumulation of air bubbles causing imbalance and shaking in centrifugal motion.

[0004] Technical solution: To achieve the above objectives, this utility model provides a special water bath constant temperature device for centrifuge tubes, which includes a centrifuge tube frame that is built into a water bath and driven to rotate by a centrifugal drive mechanism. The centrifuge tube frame is composed of a central connecting rod connecting a bottom support plate and an upper positioning plate. The centrifuge tubes are positioned on the bottom support plate by the upper positioning plate.

[0005] The water bath tank is equipped with an automatic exhaust valve on its cover; the bottom support plate and the upper positioning plate are both equipped with air-carrying blades. When the air-carrying blades rotate with the centrifuge tube rack, they disperse the air bubbles accumulated on the air-carrying plate by stirring the surrounding water.

[0006] Furthermore, the easy-to-store air plate surface is provided with multiple air-driving blades, and the multiple air-driving blades are distributed in a circumferential array on the easy-to-store air plate surface.

[0007] Furthermore, the easy-to-store air plate surface is the lower plate surface of the bottom support plate and the lower plate surface of the upper positioning plate, and the air-driving blades are distributed on both the lower plate surface of the bottom support plate and the lower plate surface of the upper positioning plate.

[0008] Furthermore, the bottom support plate and the upper positioning plate are respectively provided with a number of through holes; on the easy-to-store air plate surface, the number of through holes are arranged in a circumferential array and distributed around the air-driving blades arranged in a circumferential array. The structural contour of the air-driving blades from the blade root to the blade tip is arranged radially outward along the easy-to-store air plate surface to disperse air bubbles outward.

[0009] Furthermore, the tank cover is equipped with a pressure sensor for detecting the air pressure inside the water bath.

[0010] Furthermore, the automatic exhaust valve is a solenoid valve.

[0011] Furthermore, the groove cover is partially provided with an observation window.

[0012] Furthermore, the bottom support plate has support holes, and the upper positioning plate has positioning holes that vertically correspond one-to-one with the support holes. A pressure pin is movably connected to the outer periphery of the upper positioning plate corresponding to the positioning hole. The centrifuge tube passes through the positioning hole and sits in the support hole. The corresponding pressure pin is radially fed to press and position the centrifuge tube.

[0013] Beneficial effects: By setting air-driving blades on the lower surface of the bottom support plate and the upper positioning plate respectively to disperse the accumulated air bubbles and discharge them through the automatic exhaust valve, the accumulation of air bubbles is prevented from causing imbalance and shaking in the centrifugal motion, thereby ensuring the effectiveness and safety of the centrifugal water bath operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 Schematic diagram of centrifuge tube rack structure Figure 1 ;

[0016] Figure 3 Schematic diagram of centrifuge tube rack structure Figure 2 . Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1 and Figure 3 As shown, a water bath constant temperature device for centrifuge tubes includes a centrifuge tube rack 3 that is driven to rotate within a built-in water bath 1 and driven by a centrifugal drive mechanism 2. The centrifuge tube rack 3 is composed of a central connecting rod 4 connecting a bottom support plate 5 and an upper positioning plate 6. The centrifuge tubes 10 are positioned and seated on the bottom support plate 5 via the upper positioning plate 6. More specifically, the bottom support plate 5 has support holes 50, and the upper positioning plate 6 has positioning holes 60 that vertically correspond one-to-one with the support holes 50. Corresponding to the positioning holes 60, a tube pressing nail 14 is movably connected to the outer periphery of the upper positioning plate 6. The centrifuge tubes 10 pass through the positioning holes 60 and sit in the support holes 50, and the corresponding tube pressing nails 14 radially press and position the corresponding centrifuge tubes 10.

[0019] like Figure 1 , Figure 2 as well as Figure 3As shown, an automatic exhaust valve 8 is provided on the tank cover 15 of the water bath 1; air-carrying blades 7 are provided on the air-collecting plate surface 9 of both the bottom support plate 5 and the upper positioning plate 6; the air-collecting plate surface 9 is the lower plate surface of the bottom support plate 5 and the lower plate surface of the upper positioning plate 6, and the air-carrying blades 7 are distributed on both the lower plate surface of the bottom support plate 5 and the lower plate surface of the upper positioning plate 6; when the air-carrying blades 7 rotate with the centrifuge tube rack 3, they disperse the air bubbles accumulated on the air-collecting plate surface 9 by stirring the surrounding water, and the dispersed air bubbles rise to the liquid surface and are discharged when the automatic exhaust valve 8 is open, thereby avoiding the accumulation of air bubbles that cause the centrifuge to become unbalanced and shake, and ensuring the effectiveness and safety of the centrifugal water bath operation.

[0020] In order to improve the effect and efficiency of dispersing air bubbles, in this utility model, the easy-to-store air plate 9 is provided with multiple air-dispersing blades 7, and the multiple air-dispersing blades 7 are distributed in a circumferential array on the easy-to-store air plate 9.

[0021] After the bubbles are dispersed in the bubble cup, they generally reach the edge of the easy-to-store-air plate 9 and float upwards due to the loss of resistance. To facilitate the rapid rise of the bubbles, in this invention, the bottom support plate 5 and the upper positioning plate 6 are respectively provided with several through holes 11. On the easy-to-store-air plate 9, the several through holes 11 are arranged in a circumferential array and distributed around the circumferentially arrayed air-driving blades 7. The air-driving blades 7, from the blade root to the blade tip, are arranged radially outwards along the easy-to-store-air plate 9 to disperse the bubbles outwards. As the bubbles are dispersed and move towards the edge of the easy-to-store-air plate 9, some bubbles float upwards through the through holes 11 and leave the easy-to-store-air plate 9 ahead of time, while other bubbles float upwards from the edge of the easy-to-store-air plate 9, improving the bubble dispersion efficiency and reducing the impact on the centrifugal water bath.

[0022] Preferably, the automatic exhaust valve 8 is a solenoid valve. A pressure sensor 12 is installed on the tank cover 15 to detect the air pressure inside the water bath 1. The pressure sensor 12 can detect the air pressure inside the water bath 1 in real time. To achieve automated control, the automatic exhaust valve 8 and the pressure sensor 12 can be interlocked through a control system. The control system has a built-in safety air pressure threshold. When the real-time detected air pressure value is higher than the safety air pressure threshold, the control system interlocks the automatic exhaust valve 8 to open and exhaust air to reduce pressure, thus achieving automated exhaust, which is more timely, safe, and reliable.

[0023] To facilitate observation of the water bath, a partial observation window 13 is provided on the tank cover 15, and the observation window 13 is made of tempered glass.

[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A water bath constant temperature device for centrifuge tubes, comprising a centrifuge tube rack (3) that is built into a water bath tank (1) and driven to rotate by a centrifugal drive mechanism (2). The centrifuge tube rack (3) is composed of a central connecting rod (4) connecting a bottom support plate (5) and an upper positioning plate (6). The centrifuge tube (10) is positioned on the bottom support plate (5) by the upper positioning plate (6). Its features are: An automatic exhaust valve (8) is provided on the tank cover (15) of the water bath (1); the easy-to-store air plate surface (9) of the bottom support plate (5) and the upper positioning plate (6) are both provided with air-driving blades (7). When the air-driving blades (7) rotate with the centrifuge tube rack (3), they disperse the air bubbles accumulated on the easy-to-store air plate surface (9) by stirring the surrounding water.

2. The centrifuge tube-specific water bath constant temperature device according to claim 1, characterized in that: The gas storage plate (9) is provided with multiple air-driving blades (7), which are arranged in a circumferential array on the gas storage plate (9).

3. The centrifuge tube-specific water bath constant temperature device according to claim 2, characterized in that: The easy-to-store air plate surface (9) is the lower plate surface of the bottom support plate (5) and the lower plate surface of the upper positioning plate (6). The air-driving blades (7) are distributed on both the lower plate surface of the bottom support plate (5) and the lower plate surface of the upper positioning plate (6).

4. The centrifuge tube-specific water bath constant temperature device according to claim 3, characterized in that: The bottom support plate (5) and the upper positioning plate (6) are respectively provided with a number of through holes (11); on the easy-to-store air plate surface (9), the number of through holes (11) are arranged in a circumferential array and distributed around the air-driving blades (7) arranged in a circumferential array. The structural outline of the air-driving blades (7) from the blade root to the blade tip is arranged radially outward along the easy-to-store air plate surface (9) to disperse air bubbles outward.

5. The centrifuge tube-specific water bath constant temperature device according to claim 4, characterized in that: The tank cover (15) is equipped with a pressure sensor (12) for detecting the air pressure inside the water bath tank (1).

6. The centrifuge tube-specific water bath constant temperature device according to claim 5, characterized in that: The automatic exhaust valve (8) is a solenoid valve.

7. A water bath constant temperature device for centrifuge tubes according to claim 5, characterized in that: The groove cover (15) is partially provided with an observation window (13).

8. A water bath constant temperature device for centrifuge tubes according to any one of claims 1 to 7, characterized in that: The bottom support plate (5) has a support hole (50), and the upper positioning plate (6) has a positioning hole (60) that corresponds vertically to the support hole (50). A pressure pin (14) is movably connected to the outer periphery of the upper positioning plate (6) corresponding to the positioning hole (60). The centrifuge tube (10) passes through the positioning hole (60) and sits in the support hole (50). The corresponding pressure pin (14) is radially fed to press and position the centrifuge tube (10).

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