Biological reagent centrifugal machine

By introducing a gas cooling system and a guide ejection mechanism into the biological reagent centrifuge, the problems of residual temperature influence and inconvenience in container removal have been solved, thereby improving the centrifuge's performance and the quality of the biological reagents.

CN224208239UActive Publication Date: 2026-05-08CHENGDU FANJING BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU FANJING BIOTECHNOLOGY CO LTD
Filing Date
2025-04-23
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing biological reagent centrifuges have residual temperatures after heating operations that affect reagent quality, and removing containers is inconvenient, reducing operational efficiency.

Method used

The system employs a drive mechanism and an air pump system to cool the rotating seat through gas delivery, and utilizes a combination of ejection rod and guide frame to achieve stable ejection of the container and avoid damage.

Benefits of technology

It effectively reduces the impact of residual temperature, improves the centrifugation quality and ease of operation of biological reagents, and ensures the integrity and safety of containers.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224208239U_ABST
    Figure CN224208239U_ABST
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Abstract

The utility model relates to the technical field of centrifugal machines, in particular to a biological reagent centrifugal machine. According to the technical scheme, the centrifugal machine comprises a centrifugal machine body and a mounting disc, a first driving mechanism is mounted on the bottom end face of the inner wall of the centrifugal machine body, a rotating seat is mounted on an output shaft of the first driving mechanism through a rotating shaft, a container is slidably connected into the rotating seat in a sleeved mode, and an electric heating wire is mounted on the inner wall of the rotating seat in an attached mode; a cover plate is mounted on the centrifugal machine body through a hinge; a fixing frame is installed on the rear end face of the inner wall of the centrifugal machine body, a second driving mechanism is installed on the top end face of the fixing frame, a lead screw is arranged on an output shaft of the second driving mechanism, and a guide rod is fixedly installed in the fixing frame. An ejector rod is mounted on the top end surface of the mounting disc; and an annular pipe is mounted in the cover plate. The biological reagent centrifugal treatment device meets the centrifugal treatment of biological reagents, can cool the inside after the treatment, and can carry out ejection operation after use, thereby avoiding inconvenience in taking out the biological reagents.
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Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, specifically to a biological reagent centrifuge. Background Technology

[0002] Centrifuges, as a commonly used material separation device, work by rotating materials at high speed and using the density differences of different substances to achieve stratification. The denser liquids settle to the bottom, while the less dense liquids float to the top, thus achieving material separation and obtaining the desired pure substance.

[0003] A search revealed that patent application CN218167372U discloses a fixed and stable biological reagent centrifuge device. While this device allows for flexible use, allowing for the placement of single or multiple test tubes to improve centrifugation efficiency, it is currently equipped with a heating mechanism to heat the test tubes and other containers. After heating, residual heat remains inside the device. When reagents are placed again, this residual heat directly affects the newly added reagents. For reagents that do not require heating, this unintended heating may adversely affect the quality of the centrifuged reagents, interfering with experimental results or product quality. Furthermore, the test tubes are inside the centrifuge mechanism after placement, making removal inconvenient and reducing operational efficiency. Therefore, existing centrifuges require further optimization and improvement in design to overcome these practical shortcomings. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a biological reagent centrifuge, which solves the problems mentioned in the background section.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0006] A biological reagent centrifuge includes a centrifuge body and a mounting plate. A first drive mechanism is installed on the bottom surface of the inner wall of the centrifuge body. A rotating seat is installed on the output shaft of the first drive mechanism via a rotating shaft. A container is slidably sleeved inside the rotating seat. A heating wire is fitted to the inner wall of the rotating seat. A cover plate is installed on the centrifuge body via a hinge.

[0007] A fixed frame is installed on the rear end face of the inner wall of the centrifuge body, and a second drive mechanism is installed on the top face of the fixed frame. A lead screw is provided on the output shaft of the second drive mechanism, and a guide rod is fixedly installed inside the fixed frame.

[0008] An ejector rod is mounted on the top surface of the mounting plate;

[0009] An annular pipe is installed inside the cover plate, and an air pump is installed on the cover plate.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, the first drive mechanism and the second drive mechanism are composed of a drive motor and a reducer.

[0012] The beneficial effects of adopting the above-mentioned further solutions are:

[0013] The drive motor provides power to ensure the rotation of the rotating seat and the stable rotation of the lead screw. The reducer controls the rotational speed of the rotating seat and the movement speed of the lead screw, adjusting the centrifuge's operating parameters according to the centrifugation requirements of different biological reagents.

[0014] Furthermore, the ejector rod is slidably sleeved inside the rotating seat, and a silicone ball is fitted onto the top surface of the ejector rod.

[0015] The beneficial effects of adopting the above-mentioned further solutions are:

[0016] The ejector rod can slide freely within the rotating seat. After centrifugation, the ejector rod moves upward to push the container out. The silica gel balls have good elasticity and flexibility, which can avoid damaging the container during the ejection process and protect the integrity of the biological reagents inside.

[0017] Furthermore, a guide frame is installed on the rear end face of the mounting plate, the guide frame is slidably sleeved on the guide rod, and the guide frame is threaded onto the lead screw.

[0018] The beneficial effects of adopting the above-mentioned further solutions are:

[0019] The guide rod guides the movement of the guide frame, ensuring that the ejector rod can accurately eject the container along a straight line. The screw threaded into the guide frame converts the rotational motion of the second drive mechanism into the linear motion of the guide frame, realizing the lifting and lowering operation of the ejector rod.

[0020] Furthermore, the air pump is equipped with an air inlet pipe, and the air pump is connected to the gas in the annular pipe through the air inlet pipe.

[0021] The beneficial effects of adopting the above-mentioned further solutions are:

[0022] An air pump delivers gas into the annular tube via an inlet pipe. During centrifugation, gas is supplied into the centrifuge body after the container has been removed, allowing the gas to circulate and cool the interior.

[0023] Furthermore, an outlet pipe is embedded and fixed on the annular tube, and the outlet pipe is in communication with the gas in the annular tube.

[0024] The beneficial effects of adopting the above-mentioned further solutions are:

[0025] The outlet tube can evenly release the gas in the annular tube into the centrifuge body and inject the gas into the receiving cavity of the rotating seat, making the gas distribution in the rotating seat more uniform. This cools down the rotating seat after heating and prevents the residual temperature from affecting the biological reagents in subsequent centrifugations.

[0026] Furthermore, an exhaust pipe is embedded in the side end face of the centrifuge body, and the exhaust pipe is in gas communication with the centrifuge body.

[0027] The beneficial effects of adopting the above-mentioned further solutions are:

[0028] The exhaust pipe is used to discharge the gases generated during the cooling process, maintaining a stable internal environment for the centrifuge.

[0029] This invention provides a biological reagent centrifuge. It has the following beneficial effects:

[0030] The ejector rod is slidably fitted inside the rotating seat and a silicone ball is installed on its top surface. After the centrifugation operation is completed, the ejector rod moves upward to eject the container. The good elasticity and softness of the silicone ball can prevent damage to the container.

[0031] The guide frame at the rear end of the mounting tray is slidably sleeved on the guide rod and threaded onto the lead screw. The guide rod provides guidance for the movement of the guide frame, ensuring that the ejector rod can accurately eject the container in a straight line. The threaded engagement between the lead screw and the guide frame converts the rotational motion of the second drive mechanism into the linear motion of the guide frame, realizing the lifting and lowering operation of the ejector rod. This makes the ejection operation more stable and accurate, improving the convenience and reliability of the centrifuge.

[0032] A fixed outlet pipe is embedded in the annular tube and communicates with the gas in the annular tube. This allows the gas in the annular tube to be released evenly into the centrifuge body and injected into the receiving cavity of the rotating seat. This makes the gas distribution in the rotating seat more uniform and effectively cools the rotating seat where there is residual temperature after heating. This prevents residual temperature from affecting the biological reagents being centrifuged again, thus improving the use effect of the centrifuge and the quality of biological reagent centrifugation. Attached Figure Description

[0033] The accompanying drawings, which are provided to further illustrate the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0034] In the attached diagram:

[0035] Figure 1 This is a front view schematic diagram of the present invention;

[0036] Figure 2This is a rear view schematic diagram of the present invention;

[0037] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0038] Figure 4 This is a cross-sectional schematic diagram of the rotating seat of this utility model.

[0039] The attached diagram lists the components represented by each number as follows:

[0040] 1. Centrifuge body; 101. Exhaust pipe; 2. Rotating seat; 201. Container; 202. First drive mechanism; 203. Heating wire; 3. Fixing frame; 301. Second drive mechanism; 302. Guide rod; 303. Lead screw; 304. Guide frame; 305. Mounting plate; 306. Push rod; 4. Cover plate; 401. Annular pipe; 402. Exhaust pipe; 403. Air pump; 404. Inlet pipe. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows:

[0043] Example 1

[0044] A biological reagent centrifuge includes a centrifuge body 1 and a mounting plate 305. A first drive mechanism 202 is installed on the bottom surface of the inner wall of the centrifuge body 1. A rotating seat 2 is installed on the output shaft of the first drive mechanism 202 via a rotating shaft. A container 201 is slidably sleeved inside the rotating seat 2. An electric heating wire 203 is fitted to the inner wall of the rotating seat 2. A cover plate 4 is installed on the centrifuge body 1 via a hinge.

[0045] A fixed frame 3 is installed on the rear end face of the inner wall of the centrifuge body 1. A second drive mechanism 301 is installed on the top face of the fixed frame 3. A lead screw 303 is provided on the output shaft of the second drive mechanism 301. A guide rod 302 is fixedly installed inside the fixed frame 3.

[0046] An ejector rod 306 is installed on the top surface of the mounting plate 305;

[0047] An annular pipe 401 is installed inside the cover plate 4, and an air pump 403 is installed on the cover plate 4.

[0048] The first drive mechanism 202 and the second drive mechanism 301 consist of a drive motor and a reducer. The drive motor provides power to ensure the rotation of the rotating seat 2 and the stable rotation of the lead screw 303. The reducer controls the rotational speed of the rotating seat 2 and the movement speed of the lead screw 303, and adjusts the operating parameters of the centrifuge according to the centrifugation requirements of different biological reagents.

[0049] The air pump 403 is equipped with an air inlet pipe 404, and the air pump 403 is connected to the annular pipe 401 for gas communication through the air inlet pipe 404. The air pump 403 can deliver gas to the annular pipe 401 through the air inlet pipe 404. During the centrifugation process, gas is delivered into the centrifuge body 1 after the container 201 is removed, so that the gas flows to cool the interior.

[0050] An outlet pipe 402 is embedded and fixed on the annular tube 401, and the outlet pipe 402 is connected to the gas in the annular tube 401. The outlet pipe 402 can release the gas in the annular tube 401 evenly into the centrifuge body 1 and inject the gas into the receiving cavity of the rotating seat 2, so that the gas is more evenly distributed in the rotating seat 2, thereby cooling the rotating seat 2 with residual temperature after heating and avoiding the residual temperature from affecting the biological reagents centrifuged again.

[0051] An exhaust pipe 101 is embedded in the side end face of the centrifuge body 1, and the exhaust pipe 101 is in gas communication with the centrifuge body 1. The exhaust pipe 101 is used to discharge the gas generated during the cooling process and maintain the stability of the internal environment of the centrifuge.

[0052] Example 2

[0053] To avoid the inconvenience of retrieving the product after centrifugation, for example, such as Figures 1 to 4 As shown, this utility model also includes:

[0054] The ejector rod 306 is slidably sleeved within the rotating seat 2. A silicone ball is fitted to the top surface of the ejector rod 306, allowing it to slide freely within the rotating seat 2. After centrifugation, the ejector rod 306 moves upward to eject the container 201. The silicone ball has good elasticity and softness, which helps to avoid damaging the container 201 during ejection, thus protecting the integrity of the biological reagents inside.

[0055] A guide frame 304 is mounted on the rear end face of the mounting plate 305. The guide frame 304 is slidably sleeved on the guide rod 302, and the guide frame 304 is threaded onto the lead screw 303. The guide rod 302 provides guidance for the movement of the guide frame 304, ensuring that the ejector rod 306 can accurately eject the container 201 along a straight line. The threaded engagement between the lead screw 303 and the guide frame 304 converts the rotational motion of the second drive mechanism 301 into the linear motion of the guide frame 304, realizing the lifting and lowering operation of the ejector rod 306.

[0056] Working principle:

[0057] Preparation stage: Open the cover plate 4, put the container 201 containing biological reagents into the rotating seat 2, and then close the cover plate 4.

[0058] Centrifugation operation: The first drive mechanism 202 (composed of a drive motor and a reducer) is started. The drive motor provides power, and the speed is controlled by the reducer, driving the rotating seat 2 to rotate, thus centrifuging the biological reagent in the container 201. At the same time, the heating wire 203 can heat the rotating seat 2 as needed to meet the centrifugation conditions of specific biological reagents.

[0059] Ejection of container 201: After the centrifugation operation is completed, the second drive mechanism 301 (composed of a drive motor and a reducer) is started. The drive motor provides power, and the reducer controls the rotation speed of the lead screw 303. The lead screw 303 is threadedly engaged with the guide frame 304 on the rear end face of the mounting plate 305. Since the guide frame 304 is slidably sleeved on the guide rod 302, the guide rod 302 provides guidance for the movement of the guide frame 304. The rotational motion of the lead screw 303 is converted into the linear motion of the guide frame 304, causing the ejection rod 306 on the mounting plate 305 to move upward in the rotating seat 2. The silicone ball at the top of the ejection rod 306 adheres to the container 201, ejecting the container 201 from the rotating seat 2, thus avoiding damage to the container 201.

[0060] Cooling operation: The air pump 403 is started, and the gas is delivered to the annular tube 401 inside the cover plate 4 through the air inlet pipe 404. The air outlet pipe 402 on the annular tube 401 releases the gas evenly into the centrifuge body 1 and injects the gas into the receiving cavity of the rotating seat 2 to cool the rotating seat 2 which has residual temperature after heating, so as to avoid the residual temperature affecting the biological reagents in subsequent centrifugation.

[0061] Gas discharge: During the cooling process, the generated gas is discharged through the exhaust pipe 101 embedded in the side end face of the centrifuge body 1, maintaining the stability of the internal environment of the centrifuge.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0063] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A biological reagent centrifuge, comprising a centrifuge body (1) and a mounting plate (305), wherein a first drive mechanism (202) is mounted on the bottom surface of the inner wall of the centrifuge body (1), a rotating seat (2) is mounted on the output shaft of the first drive mechanism (202) via a rotating shaft, a container (201) is slidably sleeved inside the rotating seat (2), a heating wire (203) is fitted onto the inner wall of the rotating seat (2), and a cover plate (4) is mounted on the centrifuge body (1) via a hinge, characterized in that: A fixing frame (3) is installed on the rear end face of the inner wall of the centrifuge body (1), and a second drive mechanism (301) is installed on the top face of the fixing frame (3). A lead screw (303) is provided on the output shaft of the second drive mechanism (301), and a guide rod (302) is fixedly installed inside the fixing frame (3). An ejector rod (306) is mounted on the top surface of the mounting plate (305). An annular pipe (401) is installed inside the cover plate (4), and an air pump (403) is installed on the cover plate (4).

2. The biological reagent centrifuge according to claim 1, characterized in that: The first drive mechanism (202) and the second drive mechanism (301) are composed of a drive motor and a reducer.

3. The biological reagent centrifuge according to claim 1, characterized in that: The ejector rod (306) is slidably sleeved inside the rotating seat (2), and a silicone ball is fitted onto the top surface of the ejector rod (306).

4. The biological reagent centrifuge according to claim 1, characterized in that: The rear end face of the mounting plate (305) is equipped with a guide frame (304), which is slidably sleeved on the guide rod (302) and is threadedly mounted on the lead screw (303).

5. A biological reagent centrifuge according to claim 1, characterized in that: The air pump (403) is provided with an air inlet pipe (404), and the air pump (403) is in gas communication with the annular pipe (401) through the air inlet pipe (404).

6. A biological reagent centrifuge according to claim 1, characterized in that: An outlet pipe (402) is embedded and fixed on the annular pipe (401), and the outlet pipe (402) is in gas communication with the annular pipe (401).

7. A biological reagent centrifuge according to claim 1, characterized in that: An exhaust pipe (101) is embedded in the side end face of the centrifuge body (1), and the exhaust pipe (101) is in gas communication with the centrifuge body (1).

Citation Information

Patent Citations

  • Biological reagent centrifugal device stable in fixation

    CN218167372U