Freezing centrifugal equipment

Abstract

The utility model discloses refrigeration centrifugal equipment, which belongs to the technical field of centrifugation and comprises an equipment shell, a refrigeration chamber is arranged on the equipment shell, a rotary centrifugal disc is rotatably mounted at the bottom of the refrigeration chamber, one end of the rotary centrifugal disc is fixedly connected with an output shaft of a built-in motor of the equipment shell, and a vertical mounting block is fixedly mounted at the top of the rotary centrifugal disc. A vertical limiting sliding groove is formed in the vertical mounting block, a lifting type positioning connecting assembly is mounted in the vertical limiting sliding groove, an extending strip block is fixedly mounted at one end of the lifting type positioning connecting assembly, counterweight heads and a transverse mounting strip are mounted on the extending strip block, the counterweight heads are linearly and uniformly distributed, and the counterweight heads are fixed to the extending strip block through connecting screw rods; a clamping and fixing assembly is mounted in the transverse mounting groove; under the action of the counterweight head, the rotating stability is ensured, the centrifugal effect is improved, meanwhile, the clamping height of the test tube can be flexibly adjusted, and the test tube centrifugal machine is suitable for centrifugal treatment of test tubes of different specifications.

Description

Technical Field

[0001] This utility model relates to a refrigerated centrifuge device and belongs to the field of centrifugation technology. Background Technology

[0002] Refrigerated centrifuges, also known as refrigerated centrifuges, are high-performance separation devices. They combine centrifugation technology with a temperature control system, enabling high-speed centrifugation of samples at a set low temperature. This device generates powerful centrifugal force through high-speed rotation, effectively separating components of different densities within a sample. Simultaneously, the low temperature environment helps protect the stability and activity of heat-sensitive samples, preventing denaturation or inactivation due to high temperatures. Refrigerated centrifuges are widely used in life sciences, molecular biology, medical research, pharmaceuticals, and chemistry. Refrigerated centrifugation requires test tubes containing the samples, which are then fixed within the centrifuge unit for the rotational centrifugation operation.

[0003] However, existing centrifuge equipment can only fix test tubes of the same size, which cannot meet different experimental needs. Furthermore, the uneven distribution of test tubes can easily affect the stability of rotation, resulting in certain drawbacks in its use.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] The purpose of this invention is to provide a refrigerated centrifuge device to solve the above problems. It can flexibly adjust the clamping height of the test tubes to adapt to test tubes of different sizes for centrifugation, ensuring safety and stability during the centrifugation process. At the same time, the counterweight head ensures the smoothness of rotation and improves the centrifugation effect.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a refrigerated centrifuge device includes a housing, a refrigeration chamber disposed on the housing, a rotating centrifuge disc rotatably mounted at the bottom of the refrigeration chamber, one end of the rotating centrifuge disc being fixedly connected to the output shaft of a built-in motor in the housing, a vertical mounting block being fixedly mounted on the top of the rotating centrifuge disc, a vertical limiting groove being provided on the vertical mounting block, a lifting positioning connection assembly being installed in the vertical limiting groove, an extension strip being fixedly mounted on one end of the lifting positioning connection assembly, a counterweight head and a transverse mounting strip being installed on the extension strip, the counterweight head being linearly and evenly distributed, and the counterweight head being fixed to the extension strip by a connecting screw, a transverse mounting groove being provided on the transverse mounting strip, a clamping and fixing assembly being installed in the transverse mounting groove, the clamping and fixing assembly being used to clamp and fix test tubes.

[0007] Preferably, in order to allow the extended connecting plate to slide on the vertical mounting block via the limiting slider, the lifting positioning connecting assembly includes the limiting slider, the limiting slider is slidably engaged in the vertical limiting groove, the extended connecting plate is fixedly mounted on the limiting slider, and the extension strip is fixed on the extended connecting plate.

[0008] Preferably, in order to enable the protruding connecting plate to be fixedly connected to the vertical mounting block by means of the positioning pin, the positioning pin is slidably mounted on the protruding connecting plate, one end of the positioning pin is inserted into the positioning pin holes that are linearly and evenly opened on the vertical mounting block, and the other end of the positioning pin is fixedly mounted with the lifting handle.

[0009] Preferably, in order to enable the annular connecting block to drive the positioning pin rod to be fixedly inserted into the positioning pin hole by means of the positioning spring, the annular connecting block is fixedly sleeved on the positioning pin rod, and the annular connecting block is elastically connected to the protruding connecting plate by means of the positioning spring.

[0010] Preferably, in order to enable the bidirectional threaded rod to rotate in the transverse mounting slot by controlling the micro motor to turn on, the clamping and fixing assembly includes the micro motor and the bidirectional threaded rod. The micro motor is fixed on the inner wall of one end of the transverse mounting slot, and the bidirectional threaded rod is rotatably mounted on the inner wall of the other end of the transverse mounting slot through the rotary joint. One end of the bidirectional threaded rod is fixedly connected to the output shaft of the micro motor.

[0011] Preferably, in order to control the rotation of the bidirectional threaded rod so that the two threaded sliders can slide in opposite directions in the transverse mounting groove, the bidirectional threaded rod is equipped with the threaded sliders, the threaded sliders are slidably engaged in the transverse mounting groove, and there are two threaded sliders, the two threaded sliders being located at the opposite thread ends of the bidirectional threaded rod.

[0012] Preferably, in order to allow the first clamping seat and the second clamping seat to move closer or further apart via the two threaded sliders, the first clamping seat and the second clamping seat are respectively fixedly installed on the two threaded sliders, and the first clamping seat and the second clamping seat are symmetrically distributed.

[0013] Preferably, in order to make the clamping of the test tube by the first clamping seat and the second clamping seat more stable through the soft friction pad, the soft friction pad is fixedly installed on the inner wall of both the first clamping seat and the second clamping seat.

[0014] The beneficial effects of this utility model are: the height of the clamping and fixing component can be adjusted by the lifting positioning and connecting component, which can flexibly adjust the clamping height of the test tube to adapt to test tubes of different specifications for centrifugation, ensuring safety and stability during the centrifugation process; under the action of the counterweight head, the rotation is ensured to be stable and the centrifugation effect is improved. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the freezing chamber of this utility model.

[0017] Figure 3 This is a schematic diagram of the installation structure of the vertical mounting block of this utility model.

[0018] Figure 4 This is a schematic diagram of the overall structure of the lifting positioning connection component of this utility model.

[0019] Figure 5 This is a schematic diagram of the overall structure of the clamping and fixing component of this utility model.

[0020] In the diagram: 1. Equipment housing; 2. Freezing chamber; 3. Rotating centrifuge disc; 4. Vertical mounting block; 5. Lifting positioning connection assembly; 501. Limiting slider; 502. Extending connecting plate; 503. Positioning pin; 504. Lifting handle; 505. Annular connecting block; 506. Positioning spring; 6. Extension strip; 7. Counterweight head; 8. Horizontal mounting strip; 9. Connecting screw; 10. Clamping and fixing assembly; 1001. Micro motor; 1002. Bidirectional threaded rod; 1003. Rotary joint; 1004. Threaded slider; 1005. First clamping seat; 1006. Second clamping seat; 1007. Soft friction pad. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-5As shown, a refrigerated centrifuge includes a housing 1, a refrigeration chamber 2, a rotating centrifuge disc 3 rotatably mounted at the bottom of the refrigeration chamber 2, one end of the rotating centrifuge disc 3 being fixedly connected to the output shaft of a built-in motor in the housing 1, a vertical mounting block 4 fixedly mounted on the top of the rotating centrifuge disc 3, a vertical limiting groove provided on the vertical mounting block 4, a lifting positioning connection assembly 5 installed in the vertical limiting groove, an extension strip 6 fixedly mounted on one end of the lifting positioning connection assembly 5, a counterweight head 7 and a transverse mounting strip 8 mounted on the extension strip 6, the counterweight head 7 being linearly and evenly distributed, and fixed to the extension strip 6 by a connecting screw 9, the transverse mounting strip 8 having a transverse mounting groove. A clamping and fixing assembly 10 is installed in the mounting slot. The clamping and fixing assembly 10 is used to clamp and fix the test tube. In use, the test tube is placed in the clamping and fixing assembly 10 and the clamping and fixing assembly 10 is used to stabilize the test tube. By operating the built-in motor of the device housing 1, the rotating centrifuge disk 3 is driven to rotate in the freezing chamber 2. The lifting positioning connection assembly 5 and the counterweight head 7 rotate accordingly. The even distribution of the counterweight head 7 ensures smooth rotation. The lifting positioning connection assembly 5 can adjust the height of the clamping and fixing assembly 10 to accommodate test tubes of different heights. During the rotation, the sample in the test tube is separated under the action of centrifugal force. At the same time, the freezing chamber 2 maintains a low temperature environment, which helps the sample to freeze and separate.

[0023] like Figure 4 As shown, the lifting positioning connection assembly 5 includes a limiting slider 501, which is slidably engaged in a vertical limiting groove. An extension connecting plate 502 is fixedly installed on the limiting slider 501, and an extension block 6 is fixedly installed on the extension connecting plate 502. A positioning pin 503 is slidably installed on the extension connecting plate 502. One end of the positioning pin 503 is inserted into a positioning pin hole that is linearly and evenly opened on the vertical mounting block 4. A lifting handle 504 is fixedly installed on the other end of the positioning pin 503. An annular connecting block 505 is fixedly sleeved on the positioning pin 503. The annular connecting block 505 is elastically connected to the extension connecting plate 502 through a positioning spring 506. In use, the positioning pin 503 is pulled out of the current positioning pin hole by pulling the lifting handle 504, thereby releasing the fixation of the limiting slider 501. Then, slide the limiting slider 501 in the vertical limiting groove to drive the extended connecting plate 502 and the extension strip 6 to move up and down to the required height. After reaching the appropriate position, release the lifting handle 504. The positioning spring 506 pushes the annular connecting block 505 and the positioning pin 503 into the corresponding positioning pin hole to achieve fixation. The height of the counterweight head 7 and the clamping and fixing component 10 can be flexibly adjusted according to the experimental requirements to achieve stable positioning of the test tube and ensure the stability and accuracy of the centrifugation process.

[0024] like Figure 5As shown, the clamping and fixing assembly 10 includes a micro motor 1001 and a bidirectional threaded rod 1002. The micro motor 1001 is fixed on the inner wall of one end of the transverse mounting groove. The bidirectional threaded rod 1002 is rotatably mounted on the inner wall of the other end of the transverse mounting groove via a rotary joint 1003. One end of the bidirectional threaded rod 1002 is fixedly connected to the output shaft of the micro motor 1001. A threaded slider 1004 is mounted on the bidirectional threaded rod 1002. The threaded slider 1004 is slidably engaged in the transverse mounting groove. There are two threaded sliders 1004, and the two threaded sliders 1004 are respectively positioned... At the reverse threaded ends of the bidirectional threaded rod 1002, a first clamping seat 1005 and a second clamping seat 1006 are respectively fixedly installed on the two threaded sliders 1004. The first clamping seat 1005 and the second clamping seat 1006 are symmetrically distributed. Soft friction pads 1007 are fixedly installed on the inner walls of the first clamping seat 1005 and the second clamping seat 1006. When in use, the micro motor 1001 is started to drive the bidirectional threaded rod 1002 to rotate. Since the threaded directions at both ends of the bidirectional threaded rod 1002 are opposite, the two threaded sliders 1004 will move to the middle or both sides at the same time. Adjust the position of the threaded slider 1004 according to the size of the test tube until the first clamping seat 1005 and the second clamping seat 1006 clamp the test tube tightly. The soft friction pad 1007 provides sufficient friction to ensure that the test tube will not slip during centrifugation. After centrifugation is completed, start the micro motor 1001 in reverse and release the clamping seat to easily remove the test tube. The whole process is simple to operate, the clamping is stable, and it is suitable for test tubes of different sizes.

[0025] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] 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 refrigerated centrifuge apparatus, characterized by: The device includes a housing (1), on which a freezing chamber (2) is provided. A rotating centrifuge disc (3) is rotatably installed at the bottom of the freezing chamber (2). One end of the rotating centrifuge disc (3) is fixedly connected to the output shaft of the built-in motor of the housing (1). A vertical mounting block (4) is fixedly installed on the top of the rotating centrifuge disc (3). A vertical limiting groove is provided on the vertical mounting block (4). A lifting positioning connection component (5) is installed in the vertical limiting groove. An extension strip (6) is fixedly installed on one end of the lifting positioning connection component (5). A counterweight head (7) and a transverse mounting strip (8) are installed on the extension strip (6). The counterweight head (7) is linearly and evenly distributed, and the counterweight head (7) is fixed on the extension strip (6) by a connecting screw (9). A transverse mounting groove is provided on the transverse mounting strip (8). A clamping and fixing component (10) is installed in the transverse mounting groove. The clamping and fixing component (10) is used to clamp and fix the test tube. The lifting positioning connection assembly (5) includes a limiting slider (501), which is slidably engaged in the vertical limiting groove. An extension connecting plate (502) is fixedly installed on the limiting slider (501), and the extension strip (6) is fixed on the extension connecting plate (502). A positioning pin (503) is slidably installed on the extended connecting plate (502). One end of the positioning pin (503) is inserted into a positioning pin hole that is linearly and evenly opened on the vertical mounting block (4). The other end of the positioning pin (503) is fixedly installed with a lifting handle (504). An annular connecting block (505) is fixedly sleeved on the positioning pin (503), and the annular connecting block (505) is elastically connected to the protruding connecting plate (502) through a positioning spring (506).

2. The refrigerated centrifuge apparatus of claim 1, wherein: The clamping and fixing assembly (10) includes a micro motor (1001) and a bidirectional threaded rod (1002). The micro motor (1001) is fixed on the inner wall of one end of the transverse mounting groove, and the bidirectional threaded rod (1002) is rotatably mounted on the inner wall of the other end of the transverse mounting groove through a rotating joint (1003). One end of the bidirectional threaded rod (1002) is fixedly connected to the output shaft of the micro motor (1001).

3. The refrigerated centrifuge apparatus of claim 2, wherein: A threaded slider (1004) is installed on the bidirectional threaded rod (1002). The threaded slider (1004) is slidably engaged in the transverse mounting groove. There are two threaded sliders (1004), and the two threaded sliders (1004) are respectively located at the reverse thread ends of the bidirectional threaded rod (1002).

4. The refrigerated centrifuge apparatus of claim 3, wherein: A first clamping seat (1005) and a second clamping seat (1006) are fixedly installed on the two threaded sliders (1004), respectively, and the first clamping seat (1005) and the second clamping seat (1006) are symmetrically distributed.

5. The refrigerated centrifuge apparatus of claim 4, wherein: A soft friction pad (1007) is fixedly installed on the inner wall of both the first clamping seat (1005) and the second clamping seat (1006).

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