Protective device for high-speed refrigerated centrifuge

Abstract

The utility model belongs to the technical field of centrifugal machine protection devices, and discloses a protection device for a high-speed refrigerated centrifugal machine, which comprises an outer box, a centrifugal machine body is placed in the outer box, and the bottom of an inner cavity of the outer box is movably connected with a bottom plate. Through the arrangement of the bottom plate, an elastic piece, a tension spring, a second magnet and other structures, the device has the effect of buffering and blocking vibration generated when the centrifugal machine works, so that the effective protection effect is achieved, through the design of the elastic piece and the tension spring, the elastic piece and the tension spring absorb part of energy, the moving speed and impact force of the bottom plate are reduced, and the service life of the centrifugal machine is prolonged. According to the centrifugal machine, the magnetic fields of the first magnet and the second magnet repel each other, so that mechanical energy generated by vibration of the centrifugal machine body is converted into magnetic field energy, the vibration generated by the centrifugal machine body is buffered and blocked by the outer box, the vibration is prevented from being directly transmitted to the external environment, and the centrifugal machine body is effectively protected through the outer box.

Description

Technical Field

[0001] The utility model belongs to the technical field of centrifuge protection devices, and specifically relates to a protection device for a high-speed refrigerated centrifuge. Background Technique

[0002] A high-speed refrigerated centrifuge is a laboratory device widely used in biomedical, molecular biology, chemistry and other scientific research fields. It combines the functions of high-speed centrifugation and refrigeration technology, and can separate and purify samples under low-temperature conditions.

[0003] When the existing high-speed refrigerated centrifuge is in use, it is generally fixedly connected to the base or table through the bottom of the centrifuge. However, since the high-speed refrigerated centrifuge will generate a certain amount of vibration during rotation, directly connecting to the table will cause resonance, thereby increasing the overall vibration intensity and instability. Therefore, a protection device for a high-speed refrigerated centrifuge is proposed to solve the problems raised in the background technique. Content of the Utility Model

[0004] To solve the problems raised in the above background technique, the utility model provides a protection device for a high-speed refrigerated centrifuge, which has the advantages of buffering and blocking the vibration generated during the operation of the centrifuge, so as to achieve effective protection.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A protection device for a high-speed refrigerated centrifuge, including an outer box, the centrifuge body is placed inside the outer box, the bottom of the inner cavity of the outer box is movably connected with a bottom plate, a group of connecting rods are hinged at the bottom of the bottom plate in a mirror image manner, the bottom ends of the connecting rods are hinged with moving blocks, elastic sheets are fixedly connected to the opposite sides of the two moving blocks, limiting rods located on both sides of the connecting rods are fixedly connected inside the outer box, a tension spring is movably sleeved on the outer surface of the limiting rods, the two sides inside the outer box are both movably connected with first square plates, the outer box is respectively movably connected with second square plates and third square plates located on both sides of the first square plate, and second magnets are fixedly connected to the four sides of the inner wall of the outer box.

[0006] Preferably, the two ends of the moving block are respectively movably sleeved outside the two limiting rods, and the elastic sheet is used to squeeze the moving block and make the moving block keep the tendency of moving towards each other.

[0007] Preferably, the two ends of the tension spring are respectively fixedly connected to the opposite sides of the two moving blocks, and heat dissipation grooves are formed on the surface of the first square plate.

[0008] Preferably, first magnets are installed inside the first square plate, the second square plate and the third square plate on the side close to the second magnet, and the first magnets match the shapes of the first square plate, the second square plate and the third square plate.

[0009] Preferably, the magnetic fields of the first magnet and the second magnet repel each other, and the heights of the first square plate, the second square plate, and the third square plate are all greater than the height of the centrifuge body.

[0010] Preferably, the bottom of the centrifuge body is in contact with the top of the bottom plate, and the outer wall of the centrifuge body is in contact with the inner walls of the first square plate, the second square plate, and the third square plate respectively.

[0011] Preferably, a square groove is formed on the surface of the third square plate, and two sides of the first square plate are respectively in contact with the opposite sides of the third square plate and the second square plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] By providing structures such as a bottom plate, elastic pieces, tension springs, and a second magnet, the device of the present utility model has the function of buffering and blocking the vibration generated during the operation of the centrifuge, so as to achieve an effective protection effect. Through the design of the elastic pieces and the tension springs, when the two moving blocks move in opposite directions, the elastic pieces are compressed and the tension springs are stretched at the same time. Subsequently, both the elastic pieces and the tension springs absorb a part of the energy, thereby reducing the moving speed and impact force of the bottom plate. Due to the repulsion of the magnetic fields of the first magnet and the second magnet, when the centrifuge body drives the first square plate, the second square plate, and the third square plate to all move towards the second magnet, at this time, through the cooperation of the first magnet and the second magnet, the mechanical energy of the vibration of the centrifuge body is converted into magnetic energy, thereby reducing the intensity of the vibration, enabling the outer box to buffer and block the vibration generated by the centrifuge body, and preventing the vibration from being directly transmitted to the external environment, so as to effectively protect the centrifuge body through the outer box. Description of the Drawings

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

[0015] Figure 2 is a schematic diagram of the front cross-section structure of the present utility model;

[0016] Figure 3 is Figure 2 the enlarged view at A in

[0017] Figure 4 is a schematic diagram of the side cross-section structure of the present utility model;

[0018] Figure 5 is a schematic diagram of the positional relationship among the first square plate, the second square plate, the third square plate, and the first magnet of the present utility model;

[0019] Figure 6 is a schematic diagram of the positional relationship among the bottom plate, the moving block, the elastic piece, and the tension spring of the present utility model.

[0020] In the figure: 1. Outer box; 2. Centrifuge body; 3. Bottom plate; 4. Connecting rod; 5. Moving block; 6. Elastic piece; 7. Limit rod; 8. Tension spring; 9. First square plate; 10. Second square plate; 11. Third square plate; 12. First magnet; 13. Second magnet. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] As Figures 1 to 6 shown, the present invention provides a protection device for a high-speed refrigerated centrifuge, including an outer box 1. A centrifuge body 2 is placed inside the outer box 1. The bottom of the inner cavity of the outer box 1 is movably connected with a bottom plate 3. A group of connecting rods 4 are mirror-hinged at the bottom of the bottom plate 3. The bottom ends of the connecting rods 4 are hinged with moving blocks 5. Elastic pieces 6 are fixedly connected to the opposite sides of the two moving blocks 5. Limit rods 7 located on both sides of the connecting rods 4 are fixedly connected inside the outer box 1. Tension springs 8 are movably sleeved on the outer surfaces of the limit rods 7. First square plates 9 are movably connected to both sides inside the outer box 1. Second square plates 10 and third square plates 11 located on both sides of the first square plates 9 are movably connected inside the outer box 1 respectively. Second magnets 13 are fixedly connected to the four sides of the inner wall of the outer box 1.

[0023] Adopting the above scheme: Through the design of the elastic pieces 6 and the tension springs 8, when the two moving blocks 5 move in opposite directions, the elastic pieces 6 are compressed and the tension springs 8 are stretched at the same time. Subsequently, both the elastic pieces 6 and the tension springs 8 absorb part of the energy, thereby reducing the moving speed and impact force of the bottom plate 3. Due to the magnetic repulsion between the first magnet 12 and the second magnet 13, when the centrifuge body 2 drives the first square plate 9, the second square plate 10 and the third square plate 11 to all move towards the second magnet 13, at this time, through the cooperation of the first magnet 12 and the second magnet 13, the mechanical energy of the vibration of the centrifuge body 2 is converted into magnetic energy, thereby reducing the intensity of the vibration, enabling the outer box 1 to buffer and block the vibration generated by the centrifuge body 2, preventing the vibration from being directly transmitted to the external environment, and thus effectively protecting the centrifuge body 2 through the outer box 1.

[0024] As Figures 2 to 6As shown in the figure, both ends of the moving block 5 are movably sleeved outside the two limiting rods 7. The elastic piece 6 is used to squeeze the moving block 5 and keep the moving block 5 in a tendency to move towards each other. Both ends of the tension spring 8 are fixedly connected to the opposite sides of the two moving blocks 5. Heat dissipation grooves are formed on the surface of the first square plate 9. First magnets 12 are installed inside the first square plate 9, the second square plate 10, and the third square plate 11 near the side of the second magnet 13, and the first magnets 12 match the shapes of the first square plate 9, the second square plate 10, and the third square plate 11.

[0025] Adopting the above solution: Since heat dissipation grooves are formed on the surface of the first square plate 9, the function of the heat dissipation grooves is that they can help the heat generated by the centrifuge body 2 during operation to dissipate more quickly, thereby avoiding affecting the performance and service life of the centrifuge body 2 due to overheating. At the same time, in the case of long-term continuous operation, good heat dissipation can ensure the stable operation of the centrifuge body 2.

[0026] As Figures 2 to 5 shown in the figure, the magnetic fields of the first magnet 12 and the second magnet 13 repel each other. The heights of the first square plate 9, the second square plate 10, and the third square plate 11 are all greater than the height of the centrifuge body 2. The bottom of the centrifuge body 2 is in contact with the top of the bottom plate 3. The outer wall of the centrifuge body 2 is in contact with the inner walls of the first square plate 9, the second square plate 10, and the third square plate 11 respectively. Square grooves are formed on the surface of the third square plate 11. Both sides of the first square plate 9 are in contact with the opposite sides of the third square plate 11 and the second square plate 10 respectively.

[0027] Adopting the above solution: By making the centrifuge body 2 in contact with the inner walls of the first square plate 9, the second square plate 10, and the third square plate 11, it is used to limit the initial position of the centrifuge body 2, thereby preventing the centrifuge body 2 from shifting or sliding inside the outer box 1, ensuring the stable operation of the centrifuge body 2, and further improving the protection effect of the outer box 1 on the centrifuge body 2.

[0028] Working principle and usage process of the present utility model: The operator places the centrifuge body 2 inside the outer box 1, and then the centrifuge body 2 starts to operate. When the rotational speed of the centrifuge body 2 is too high, the centrifuge body 2 will generate vibrations inside the outer box 1, thereby driving the bottom plate 3 to move up and down inside the outer box 1. When the bottom plate 3 moves downward, it will drive two moving blocks 5 to move in opposite directions through the connecting rod 4, thereby squeezing the elastic sheet 6. While the elastic sheet 6 contracts, it will absorb a part of the energy, thereby slowing down the downward movement speed and impact force of the bottom plate 3. While the moving blocks 5 move in opposite directions, the tension spring 8 is stretched. While the tension spring 8 is stretched, it will convert the kinetic energy of the downward movement of the bottom plate 3 into the elastic potential energy of the tension spring 8, thereby reducing the kinetic energy of the bottom plate 3, and further reducing the moving speed and impact force of the bottom plate 3, realizing the buffering of the bottom plate 3 when the centrifuge body 2 vibrates. Subsequently, the bottom plate 3 moves upward during the vibration gap of the centrifuge body 2. At this time, the two moving blocks 5 will move towards each other under the action of the elastic force of the elastic sheet 6 and the pulling force of the tension spring 8;

[0029] While the centrifuge body 2 is operating, the strong centrifugal force will not only act on the bottom plate 3, but also be transmitted to the surrounding of the outer box 1, so that the first square plate 9, the second square plate 10 and the third square plate 11 move towards the direction of the four second magnets 13 respectively. After the first square plate 9, the second square plate 10 and the third square plate 11 move, due to the magnetic repulsion between the first magnet 12 and the second magnet 13, therefore, with the cooperation of the first magnet 12 and the second magnet 13, the mechanical energy of the vibration of the centrifuge body 2 will be converted into magnetic energy, thereby reducing the intensity of the vibration, and further blocking the vibration generated by the centrifuge body 2 through the outer box 1, preventing the vibration from being directly transmitted to the external environment and interfering with the stable operation of the centrifuge body 2, and further playing a protective role for the centrifuge body 2 through the outer box 1.

[0030] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present utility model 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 principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A protective device for a high-speed refrigerated centrifuge, comprising an outer box (1), characterized in that: A centrifuge body (2) is placed inside the outer box (1); a bottom plate (3) is movably connected to the bottom of the inner cavity of the outer box (1); a group of connecting rods (4) are hinged to the bottom of the bottom plate (3) in a mirror-image manner; a moving block (5) is hinged to the bottom end of the connecting rod (4); two spring plates (6) are fixedly connected to the opposite sides of the two moving blocks (5); a limiting rod (7) located on both sides of the connecting rod (4) is fixedly connected to the inside of the outer box (1); a tension spring (8) is movably sleeved on the outer surface of the limiting rod (7); a first square plate (9) is movably connected to both sides of the inside of the outer box (1); a second square plate (10) and a third square plate (11) located on both sides of the first square plate (9) are movably connected to the inside of the outer box (1); and a second magnet (13) is fixedly connected to the four sides of the inner wall of the outer box (1).

2. The protective device for a high-speed refrigerated centrifuge according to claim 1, characterized in that: The two ends of the moving block (5) are respectively movably sleeved on the outside of two limiting rods (7), and the spring sheet (6) is used to squeeze the moving block (5) and keep the moving block (5) in a tendency to move towards each other.

3. The protective device for a high-speed refrigerated centrifuge according to claim 1, characterized in that: The two ends of the tension spring (8) are respectively fixedly connected to the opposite sides of the two moving blocks (5), and a heat dissipation groove is provided on the surface of the first square plate (9).

4. The protective device for a high-speed refrigerated centrifuge according to claim 1, characterized in that: A first magnet (12) is installed inside each of the first square plate (9), the second square plate (10) and the third rectangular plate (11) on a side close to the second magnet (13), and the first magnet (12) matches the shape of the first square plate (9), the second square plate (10) and the third rectangular plate (11).

5. The protective device for a high-speed refrigerated centrifuge according to claim 4, characterized in that: The magnetic fields of the first magnet (12) and the second magnet (13) repel each other, and the heights of the first square plate (9), the second square plate (10) and the third square plate (11) are all greater than the height of the centrifuge body (2).

6. The protective device for a high-speed refrigerated centrifuge according to claim 1, characterized in that: The bottom of the centrifuge body (2) is in contact with the top of the bottom plate (3), and the outer wall of the centrifuge body (2) is in contact with the inner walls of the first square plate (9), the second square plate (10) and the third square plate (11).

7. The protective device for a high-speed refrigerated centrifuge according to claim 1, characterized in that: A square groove is provided on the surface of the third rectangular plate (11), and two sides of the first square plate (9) are respectively in contact with the third rectangular plate (11) and the opposite side of the second square plate (10).

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