Bio-medical centrifuge rotor quick locking device

Abstract

The utility model relates to laboratory centrifuge technical field discloses biological medicine centrifuge rotor quick locking device, including organism and rotor body, the inner wall fixed connection of organism has the rotation column, the outer wall top of rotation column fixedly connected has the top cover, the outer wall of rotor body is set up with a plurality of medicament grooves, the outer wall of rotation column is set up with a plurality of fixed slots, the outer wall of rotor body is set up with a plurality of limit slots, the inner wall of a plurality of limit slots all slidingly connects with slide column, a plurality of the far away one end of slide column all fixedly connected with spring, a plurality of the far away one end of spring all fixedly connected with pull bolt. In the utility model, when rotor body is put into organism, the slide column on rotor body is first contracted under the extrusion of rotation column and then fixed in fixed slot, when unlocking, only need to pull the pull bolt, make spring drive slide column move back, can unlock, the above mechanism can complete the locking of rotor quickly, need not too much complicated step.

Description

Technical Field

[0001] This utility model relates to the field of laboratory centrifuge technology, and in particular to a quick locking device for the rotor of a biomedical centrifuge. Background Technology

[0002] Biomedical centrifuges are one of the core pieces of equipment in laboratories. Their function is to achieve sample layering and purification through high-speed rotation. They are used in cell culture, protein purification, and nucleic acid extraction. The speed accuracy, temperature control capability, and stability of the equipment during operation directly affect the reliability of experimental results. As a core component of the centrifuge, the rotor quick-locking device simplifies the operation process through optimized mechanical structure design, significantly shortens loading and unloading time, and reduces human error. At the same time, it adopts high-strength materials and sensing technology to ensure sealing and safety under high-speed operation, providing reliable protection for the high-throughput needs of the biomedical field.

[0003] Traditional rotor locking devices for biopharmaceutical centrifuges operate based on the principle of mechanical thread transmission. By rotating the locking nut, the pressure ring is brought into contact with the rotor end face to generate axial pressure, and friction is used to fix the rotor. Such devices rely on the precise fit of the threaded pair to transmit the locking force. Traditional solutions have the problems of cumbersome and time-consuming operation steps. The locking process requires repeated rotation of the nut to calibrate the pressure value, which is highly dependent on the operator's experience. At the same time, the threaded pair is prone to wear over long-term use, which leads to a decrease in locking force and poses a risk of rotor loosening.

[0004] Existing biomedical centrifuge rotor locking devices employ a pneumatic structure, using a pneumatic piston to push a pressure block to clamp the rotor, simplifying the locking operation process. However, in practical use, the response speed of the pneumatic structure is limited by the stability of air pressure, and the locking action still needs to be performed step by step and cannot be completed instantaneously. The current technology system lacks a rapid locking mechanism that integrates mechanical triggering and elastic deformation, resulting in the need to repeat multiple locking operations each time the rotor is replaced, significantly extending the experimental preparation cycle and reducing the efficiency of high-frequency centrifugation experiments. Therefore, a rapid locking device for biomedical centrifuge rotors is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a quick locking device for the rotor of a biomedical centrifuge, which aims to improve the problem that in the prior art, multiple locking operations need to be repeatedly performed when changing the rotor, which significantly prolongs the experimental preparation cycle and reduces the efficiency of high-frequency centrifugation experiments.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a quick locking device for a biopharmaceutical centrifuge rotor, comprising a body and a rotor body. A rotating column is fixedly connected to the inner wall of the body, and a top cover is fixedly connected to the top of the outer wall of the rotating column. Multiple drug slots are formed on the outer wall of the rotor body, multiple fixing slots are formed on the outer wall of the rotating column, and multiple limiting slots are formed on the outer wall of the rotor body. Sliding columns are slidably connected to the inner walls of the multiple limiting slots. Springs are fixedly connected to the opposite ends of the multiple sliding columns, and pull bolts are fixedly connected to the opposite ends of the multiple springs. Hollow rings are slidably connected to the outer walls of the multiple springs. A reinforcing mechanism is provided on the inner wall of the rotating column to improve the service life of the device.

[0007] As a further description of the above technical solution:

[0008] The reinforcement mechanism includes a wear-resistant layer, the outer wall of which is fixedly connected to the inner wall of the rotating column, a rust-proof layer fixedly connected to the inner wall of the wear-resistant layer, a sound-absorbing layer fixedly connected to the inner wall of the rust-proof layer, a support layer fixedly connected to the inner wall of the sound-absorbing layer, and multiple reinforcing ribs fixedly connected to the inner wall of the wear-resistant layer.

[0009] As a further description of the above technical solution:

[0010] A back plate is fixedly connected to the front side of the outer wall of the machine body, and a display screen is fixedly connected to the front side of the outer wall of the back plate.

[0011] As a further description of the above technical solution:

[0012] Multiple buttons are fixedly connected to the front side of the outer wall of the back plate, and the surfaces of the multiple buttons are all rounded.

[0013] As a further description of the above technical solution:

[0014] Multiple heat dissipation slots are provided on the left side of the outer wall of the machine body, and the multiple heat dissipation slots are arranged at equal intervals.

[0015] As a further description of the above technical solution:

[0016] A foot pad is fixedly connected to the top of the outer wall of the machine body, and a fixed seat is fixedly connected to the rear side of the outer wall of the machine body.

[0017] As a further description of the above technical solution:

[0018] A power cord is fixedly connected to the rear side of the outer wall of the mounting base, and a plug is fixedly connected to the rear end of the outer wall of the power cord.

[0019] As a further description of the above technical solution:

[0020] A rotating shaft is fixedly connected to the top of the outer wall of the machine body, and a cover plate is rotatably connected to the outer wall of the rotating shaft.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when the rotor body is placed into the machine body, the sliding column on the rotor body first contracts and then is fixed in the fixing groove under the pressure of the rotating column. When it is necessary to unlock, it is only necessary to pull the bolt located on the outer wall of the rotating shaft, so that the spring drives the sliding column to move backward, and the lock can be released. The above mechanism can quickly complete the locking of the rotor without too many complicated steps.

[0023] 2. In this utility model, a multi-layer structure is provided inside the rotating column. The anti-rust layer is used to block the penetration path of corrosive media such as oxygen and moisture to inhibit the electrochemical corrosion process. The anti-corrosion layer reduces the mechanical wear of the contact surface between the rotor body and the inner cavity of the rotating column by reducing the friction coefficient. The support layer adopts a ring skeleton constructed of high-strength composite material to maintain the geometric stability of the rotating column under high speed conditions by uniformly dispersing the centrifugal load. Attached Figure Description

[0024] Figure 1 This is a perspective view of the rapid locking device for the rotor of a biomedical centrifuge proposed in this utility model;

[0025] Figure 2 This is a front view of the quick-locking device for the rotor of a biomedical centrifuge proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the rapid locking device for the rotor of a biomedical centrifuge proposed in this utility model;

[0027] Figure 4 This is a side view of the quick-locking device for the rotor of a biomedical centrifuge proposed in this utility model;

[0028] Figure 5 This is a cross-sectional view of the rotor body of the rapid locking device for biomedical centrifuge rotors proposed in this utility model;

[0029] Figure 6 This is a cross-sectional view of the rotating column of the rapid locking device for the rotor of a biomedical centrifuge proposed in this utility model.

[0030] Legend:

[0031] 1. Body; 2. Reinforcing mechanism; 201. Wear-resistant layer; 202. Reinforcing rib; 203. Rust-proof layer; 204. Sound-absorbing layer; 205. Support layer; 3. Rotating column; 4. Top cover; 5. Agent tank; 6. Fixing groove; 7. Sliding column; 8. Spring; 9. Limiting groove; 10. Hollow ring; 11. Pull bolt; 12. Rotor body; 13. Back plate; 14. Display screen; 15. Button; 16. Heat dissipation groove; 17. Foot pad; 18. Fixing base; 19. Power cord; 20. Plug; 21. Rotating shaft; 22. Cover plate. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1 , Figure 3 and Figure 5 This utility model provides an embodiment of a rapid locking device for the rotor of a biomedical centrifuge, comprising a body 1 and a rotor 12. The rotor 12 serves as the main structure of the equipment. It is the core component that carries biological samples and achieves material separation under centrifugal force, supporting internal components and maintaining operational stability. A rotating column 3 is fixedly connected to the inner wall of the body 1, accommodating and driving the rotor 12 to rotate at high speed, forming the core cavity for centrifugal separation. A top cover 4 is fixedly connected to the top of the outer wall of the rotating column 3, which constrains the axial displacement of the rotor 12 through a mechanical locking mechanism, ensuring operational safety. Multiple reagent slots 5 are provided on the outer wall of the rotor 12 for placing experimental reagents. The outer wall of the rotating column 3 is provided with... Multiple fixing slots 6 are provided on the outer wall of the rotor body 12, and multiple limiting slots 9 are provided on the outer wall of the rotor body 12. The limiting slots 9 are sliding channels for the sliding column 7. The inner walls of the multiple limiting slots 9 are all slidably connected to the sliding column 7. The fixing slots 6 are used to fix the sliding column 7. The sliding column 7 is used to limit and fix the rotating column 3 and the rotor body 12. The opposite ends of the multiple sliding columns 7 are all fixedly connected to the springs 8. The springs 8 provide a certain elastic potential energy to assist in fixing the rotating column 3. The opposite ends of the multiple springs 8 are all fixedly connected to the bolts 11. The bolts 11 are used to release the lock between the rotating column 3 and the sliding column 7. The outer walls of the multiple springs 8 are all slidably connected to the hollow rings 10. The inner wall of the rotating column 3 is provided with a reinforcing mechanism 2. The reinforcing mechanism 2 is used to improve the service life of the device.

[0034] Specifically, the main body 1 serves as the supporting structure of the equipment, bearing the internal functional components and maintaining the stability of system operation. The rotating column 3 is rigidly fixed within the cavity of the main body 1. The rotating column 3, as the core unit of centrifugal separation, drives the rotor body 12 through high-speed rotation to achieve material separation. A top cover 4 is fixedly installed on the flange surface of the rotating column 3. The top cover 4 uses a built-in locking mechanism to constrain the axial freedom of the rotor body 12 to ensure safety during high-speed operation. Multiple reagent slots 5 are evenly distributed on the surface of the rotor body 12. These reagent slots 5 serve as standard sample containers, providing fixed loading space for biological reagents. Multiple fixing slots 6 are evenly distributed around the rotating column 3. Multiple limiting slots 9 are correspondingly formed at positions on the rotor body 12. These limiting slots 9 serve as directional sliding channels for the sliding column 7, forming mechanical limits. In the positioning structure, each limiting groove 9 has a sliding column 7 slidably mounted inside. The sliding column 7, as a limiting component, achieves mechanical interlocking between the rotating column 3 and the rotor body 12 by inserting into the fixing groove 6. A spring 8 is fixedly connected to the end of the sliding column 7. The spring 8 provides a continuous locking force to the sliding column 7 through pre-compression elastic potential energy to maintain connection stability. A pull bolt 11 is fixedly mounted at the end of the spring 8. The pull bolt 11, as a manual operation component, releases the locking state between the sliding column 7 and the fixing groove 6 by axial traction. A hollow ring 10 is sleeved on the outside of the spring 8. The hollow ring 10, as a guide component, limits the radial deformation of the spring 8 and optimizes the force transmission path. The rotating column 3 has an integrated reinforcement mechanism 2 inside. The reinforcement mechanism 2 enhances the mechanical properties of the rotating column 3 to improve the fatigue resistance and service life of the equipment.

[0035] Reference Figure 1 and Figure 6 The reinforcement mechanism 2 includes a wear-resistant layer 201, which reduces frictional loss between the rotor body 12 and the inner wall of the rotating column 3, extending its service life. The outer wall of the wear-resistant layer 201 is fixedly connected to the inner wall of the rotating column 3. The inner wall of the wear-resistant layer 201 is fixedly connected to an anti-rust layer 203, which isolates the corrosive media in the environment and protects the metal structure from oxidation corrosion. The inner wall of the anti-rust layer 203 is fixedly connected to a sound-absorbing layer 204, which absorbs the vibration noise generated by high-speed rotation and reduces the operating decibel value. The inner wall of the sound-absorbing layer 204 is fixedly connected to a support layer 205, which provides radial mechanical support and ensures the structural integrity of the rotating column 3 under high centrifugal force. The inner wall of the wear-resistant layer 201 is fixedly connected to multiple reinforcing ribs 202, which enhance the local deformation resistance of the rotating column 3 and optimize stress distribution.

[0036] Specifically, the wear-resistant layer 201, as the core protective structure of the inner wall of the rotating column 3, reduces mechanical wear on the contact surface between the rotor body 12 and the inner cavity of the rotating column 3 by lowering the friction coefficient, effectively improving the service life of the equipment. The outer surface of the wear-resistant layer 201 is rigidly bonded to the inner wall of the rotating column 3 to form a stable assembly relationship. The inner surface of the wear-resistant layer 201 is composite with an anti-rust layer 203. The anti-rust layer 203 uses an inert material to cover the metal substrate, blocking the penetration path of corrosive media such as oxygen and moisture to inhibit the electrochemical corrosion process. The inner surface of the anti-rust layer 203 is bonded with a sound-absorbing layer 204. The sound-absorbing layer 204 attenuates the high-speed rotation of the rotor body 12 through porous sound-absorbing material. The generated air vibration waves control the operating noise within a safe threshold range. The inner surface of the sound-absorbing layer 204 is integrated with the support layer 205. The support layer 205 is constructed with a ring skeleton made of high-strength composite material. It maintains the geometric stability of the rotating column 3 under high-speed conditions by uniformly dispersing the centrifugal load. Multiple reinforcing ribs 202 are arranged in a circumferential array on the inner wall of the wear-resistant layer 201. The reinforcing ribs 202 improve the bending stiffness of the local area of ​​the rotating column 3 through a three-dimensional rib structure and optimize the load distribution in the stress concentration area. The reinforcing ribs 202 and the wear-resistant layer 201 are integrally molded to ensure structural continuity and form a multi-level composite protection system.

[0037] Reference Figure 1 , Figure 2 and Figure 4 A backplate 13 is fixedly connected to the front of the outer wall of the machine body 1, which houses the display screen 14 and integrated circuit interface, supporting the human-machine interaction module. The display screen 14, fixedly connected to the front of the outer wall of the backplate 13, provides real-time feedback on operating parameters such as speed, temperature, and time, as well as an interface for operation commands. Multiple buttons 15 are fixedly connected to the front of the outer wall of the backplate 13, which input control commands and adjust the centrifuge's working mode and parameter settings. The surfaces of the multiple buttons 15 are all rounded. Foot pads 17 are fixedly connected to the top of the outer wall of the machine body 1 to cushion equipment vibration, improve placement stability, and reduce ground wear. A mounting base 18 is fixedly connected to the rear of the outer wall of the machine body 1 to constrain the power cord 19. To prevent the interface from loosening due to pulling, a rotating shaft 21 is fixedly connected to the top of the outer wall of the body 1, which is used to control the opening and closing of the cover plate 22. The cover plate 22 is rotatably connected to the outer wall of the rotating shaft 21 to prevent foreign objects from entering and to protect the rotating mechanism. Multiple heat dissipation slots 16 are provided on the left side of the outer wall of the body 1, which reduce the working temperature of the motor and electronic components through air convection. The multiple heat dissipation slots 16 are all arranged at equal intervals. A power cord 19 is fixedly connected to the rear side of the outer wall of the fixed base 18, which connects the external power supply and the equipment to provide a power transmission channel for the system operation. A plug 20 is fixedly connected to the rear end of the outer wall of the power cord 19, which realizes the physical connection and current conduction between the power cord 19 and the power socket.

[0038] Specifically, a backplate 13 is rigidly mounted on the front outer wall of the machine body 1. The backplate 13 serves as the mounting base for the human-machine interface module, integrating the circuit interfaces of the display screen 14 and multiple buttons 15 and ensuring structural stability. The display screen 14 is fixedly mounted on the front plane of the backplate 13. The display screen 14 displays the rotation speed parameters, temperature values, remaining time, and operation command interaction window in real time through a graphical interface. Multiple buttons 15 are arranged in an array along the lower front edge of the backplate 13. The buttons 15 adjust the centrifuge's operating mode and parameter configuration through touch command input. The surface of the buttons 15 adopts a rounded chamfer process to optimize the tactile feel. Foot pads 17 are fixedly mounted at the four corners of the bottom of the machine body 1. The foot pads 17 absorb the mechanical vibration generated during equipment operation through elastic material, increasing the friction coefficient between the equipment and the contact surface to improve static stability. A mounting base 18 is fixedly mounted on the rear outer wall of the machine body 1. The mounting base 18 uses a cable clip structure to standardize the routing path of the power cable 19. To prevent electrical connection failure of the power interface caused by external pulling, a rotating shaft 21 is fixedly installed in the center of the top of the machine body 1. The rotating shaft 21 acts as a rotation fulcrum to control the opening and closing of the cover plate 22. The outer ring of the rotating shaft 21 is hinged to the cover plate 22. The cover plate 22 isolates external dust particles from entering the core rotating area of ​​the equipment when it is closed. Multiple heat dissipation slots 16 are opened on the outer wall of the left side of the machine body 1. The heat dissipation slots 16 accelerate air circulation through a horizontally arranged grid structure and reduce the working temperature of the motor components and electronic control unit by using forced convection heat exchange. The heat dissipation slots 16 adopt a uniformly spaced distribution pattern to optimize heat dissipation efficiency. The power cord 19 is fixedly connected to the rear port of the mounting base 18. The power cord 19 serves as the energy transmission medium between the equipment and the external power supply network to ensure the continuous and stable operation of the system. A plug 20 is fixedly installed at the end of the power cord 19. The plug 20 forms a physical conductive circuit with the power socket through metal contacts to achieve safe and efficient transmission of electrical energy.

[0039] Working principle: First, when the rotor body 12 is embedded in the inner cavity of the machine body 1, the sliding pins 7 distributed on the surface of the rotor body 12 are squeezed by the inner wall of the rotating column 3. The sliding pins 7 contract inward along the limiting groove 9 and, after undergoing compression deformation, are embedded in the fixing groove 6, completing the mechanical locking between the rotor body 12 and the rotating column 3. When it is necessary to release the lock, the operator applies an axial traction force to the pull bolt 11 mounted on the outer wall of the rotating shaft 21. The pull bolt 11 drives the spring 8 to retract along the inner cavity of the hollow ring 10 through the traction action. When the spring 8 retracts, it drives the sliding pin 7 to disengage from the fixing groove 6, releasing the mechanical interlock. During the reset process of the sliding pin 7, the spring 8 releases the stored elastic potential energy to assist... The sliding column 7 returns to its initial position. The reinforcement mechanism 2 strengthens the structure of the rotating column 3 to ensure that the geometric accuracy is maintained after multiple locking and unlocking cycles. After the top cover 4 is closed, the locking mechanism suppresses the axial movement of the rotor body 12. The support layer 205 and the reinforcing rib 202 work together to offset the centrifugal stress generated by high-speed rotation. The sound-absorbing layer 204 absorbs the mechanical vibration sound waves caused by the movement of the sliding column 7. The anti-rust layer 203 blocks the corrosion of the metal substrate of the rotating column 3 by external moisture. The entire locking mechanism achieves rapid positioning of the rotor body 12 through the directional engagement of the sliding column 7 and the fixing groove 6, and can complete the safe locking without relying on complicated operation procedures.

[0040] Furthermore, the wear-resistant layer 201 reduces mechanical wear on the contact surface between the rotor body 12 and the inner cavity of the rotating column 3 by lowering the friction coefficient, effectively improving the service life of the equipment. The anti-rust layer 203 uses an inert material to cover the metal substrate, blocking the penetration path of corrosive media such as oxygen and moisture to inhibit the electrochemical corrosion process. The sound-absorbing layer 204 uses porous sound-absorbing material to attenuate the air vibration waves caused by the high-speed rotation of the rotor body 12, controlling the operating noise within a safe threshold range. The support layer 205 uses a high-strength composite material to construct a ring skeleton, which maintains the geometric stability of the rotating column 3 under high-speed conditions by uniformly dispersing the centrifugal load. The reinforcing rib 202 and the wear-resistant layer 201 are integrally molded to ensure structural continuity, forming a multi-level composite protection system.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-locking device for the rotor of a biomedical centrifuge, comprising a body (1) and a rotor body (12), characterized in that: The inner wall of the machine body (1) is fixedly connected to a rotating column (3), and the top of the outer wall of the rotating column (3) is fixedly connected to a top cover (4). The outer wall of the rotor body (12) is provided with multiple agent slots (5), the outer wall of the rotating column (3) is provided with multiple fixing slots (6), the outer wall of the rotor body (12) is provided with multiple limiting slots (9), the inner walls of the multiple limiting slots (9) are slidably connected to sliding columns (7), the opposite ends of the multiple sliding columns (7) are fixedly connected to springs (8), the opposite ends of the multiple springs (8) are fixedly connected to pull bolts (11), the outer walls of the multiple springs (8) are slidably connected to hollow rings (10), and the inner wall of the rotating column (3) is provided with a reinforcing mechanism (2). The reinforcing mechanism (2) is used to improve the service life of the device.

2. The rapid locking device for the rotor of a biomedical centrifuge according to claim 1, characterized in that: The reinforcement mechanism (2) includes a wear-resistant layer (201), the outer wall of which is fixedly connected to the inner wall of the rotating column (3), the inner wall of which is fixedly connected to an anti-rust layer (203), the inner wall of which is fixedly connected to a sound-absorbing layer (204), the inner wall of which is fixedly connected to a support layer (205), and the inner wall of which is fixedly connected to a plurality of reinforcing ribs (202).

3. The rapid locking device for the rotor of a biomedical centrifuge according to claim 1, characterized in that: A back plate (13) is fixedly connected to the front side of the outer wall of the body (1), and a display screen (14) is fixedly connected to the front side of the outer wall of the back plate (13).

4. The rapid locking device for the rotor of a biomedical centrifuge according to claim 3, characterized in that: Multiple buttons (15) are fixedly connected to the front side of the outer wall of the back plate (13), and the surfaces of the multiple buttons (15) are all rounded.

5. The rapid locking device for the rotor of a biomedical centrifuge according to claim 1, characterized in that: Multiple heat dissipation slots (16) are provided on the left side of the outer wall of the body (1), and the multiple heat dissipation slots (16) are arranged at equal intervals.

6. The rapid locking device for the rotor of a biomedical centrifuge according to claim 1, characterized in that: A foot pad (17) is fixedly connected to the top of the outer wall of the body (1), and a fixed seat (18) is fixedly connected to the rear side of the outer wall of the body (1).

7. The rapid locking device for the rotor of a biomedical centrifuge according to claim 6, characterized in that: A power cord (19) is fixedly connected to the rear side of the outer wall of the fixed base (18), and a plug (20) is fixedly connected to the rear end of the outer wall of the power cord (19).

8. The rapid locking device for the rotor of a biomedical centrifuge according to claim 1, characterized in that: A rotating shaft (21) is fixedly connected to the top of the outer wall of the body (1), and a cover plate (22) is rotatably connected to the outer wall of the rotating shaft (21).

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