Explosion-proof cover turning mechanism of centrifugal machine
By designing components such as movable grooves, pistons and pressure relief grooves in the flip mechanism of the centrifuge, the automatic pressure relief function is achieved when the pressure is too high, solving the risk of explosion that may occur during high-speed operation, ensuring the safe and stable operation of the equipment and the precise control of pressure regulation.
Patent Information
- Application Number
- CN202421452698.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-25
AI Technical Summary
When existing centrifuges operate at high speed, due to the volatile and flammable material, the internal pressure may rise sharply, and there is a risk of explosion, which in turn endangers the safety of the surrounding environment and operators.
A centrifuge explosion-proof flip mechanism is designed. By setting a movable groove and a piston at the bottom of the cover, four first springs are connected to the top of the piston, and a pressure plate and a pressure relief groove are provided between the springs. The pressure relief groove is connected to the exhaust pipe, so that the pressure relief groove is automatically relieved when the pressure is too high and prevents explosion.
Effectively protect the centrifuge from damage caused by excessive pressure, ensure its safe and stable operation, and adjust the compression amount of the spring by rotating the screw to achieve accurate control of internal pressure and adapt to the needs of different working scenarios.
Smart Images
Figure CN222753495U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flap mechanisms, in particular to an explosion-proof flap mechanism for a centrifuge. Background Art
[0002] Centrifuge is an important equipment that uses centrifugal force to separate different substances. It generates a strong centrifugal field through high-speed rotation, which allows different components in the mixture to be separated according to physical properties such as density and particle size. It plays a key role in many fields such as chemical industry, medicine, and food. Its structure is precise, including key components such as rotors and drive systems. It has the characteristics of high efficiency and rapid separation, and can accurately separate liquids and solids, liquids of different densities, etc.
[0003] During the centrifugation process of existing centrifuges, some materials may bring potential safety hazards due to their volatility and flammability. Especially when the centrifuge is running at high speed, the strong vibration will cause the pressure inside the casing to rise sharply. If the pressure cannot be released in time and effectively, there is a risk of explosion. Once an internal explosion occurs, the strong impact force may cause the cover to be instantly opened or deformed, causing serious damage to the surrounding environment and operators. Utility Model Content
[0004] The utility model aims to solve the problem that when the above-mentioned equipment is in use, special materials may have explosion risks during the centrifugal process, and the internal explosion may cause the centrifuge cover to be opened, causing serious harm to the surrounding environment and operators, thereby proposing an explosion-proof flip cover mechanism for a centrifuge.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a centrifuge explosion-proof flap mechanism, comprising a centrifuge body, the top of the centrifuge body movably contacts with a cover, the bottom of the cover is provided with a movable groove, the inner surface wall of the movable groove is movably inserted with a piston, the top of the piston is fixedly connected with four first springs, a pressure plate is fixedly connected between the tops of the four first springs, the top of the pressure plate is provided with a first mounting hole, the inner surface wall of the first mounting hole is fixedly inserted with a bearing, the inside of the bearing is fixedly inserted with a screw, the top of the screw is fixedly connected with a handle, the top of the cover is provided with a threaded groove, and the outer wall of the screw is threadedly connected to the inner wall of the threaded groove, the inner surface wall of the cover is provided with two pressure relief grooves, and the inner surface walls of the two pressure relief grooves are fixedly inserted with exhaust pipes.
[0006] Preferably, a first sealing groove is formed on the outer wall of the piston, a first sealing gasket is fixedly connected to the inner wall of the first sealing groove, a second sealing groove is formed on the outer wall of the piston, a second sealing gasket is fixedly connected to the inner wall of the second sealing groove, and a group of fixing blocks are fixedly installed on the outer wall of the machine cover.
[0007] Preferably, an arc-shaped groove is provided on one side of the outer wall of a group of the fixing blocks, a mounting ring is provided on the outer wall fixing sleeve of the centrifuge body, a circular slide groove is provided on the top of the mounting ring, and a circular slider is slidably embedded in the inner wall of the circular slide groove.
[0008] Preferably, a group of connecting rods are fixedly mounted on the top of the circular slider, and arc-shaped clamping blocks are fixedly mounted on the top of each group of connecting rods, and outer walls of a group of arc-shaped clamping blocks are movably inserted into a group of arc-shaped clamping grooves.
[0009] Preferably, a push block is fixedly mounted on the outer wall of the circular sliding block, and a second mounting hole is formed on the top of the push block.
[0010] Preferably, two second springs are fixedly connected to the inner surface wall of the second mounting hole, and a limiting block is fixedly connected between the tops of the two second springs.
[0011] Preferably, a limiting groove is provided on the outer wall of the mounting ring, and the outer wall of the limiting block is movably inserted into the limiting groove.
[0012] Compared with the prior art, the advantages and positive effects of the utility model are:
[0013] 1. In the utility model, the pressure relief function is automatically realized when the internal pressure of the centrifuge is too high through the interaction of the components of the flap mechanism, thereby effectively protecting the centrifuge from damage caused by excessive pressure and ensuring the safe and stable operation of the centrifuge. In addition, the compression amount of the four first springs can be easily adjusted by rotating the screw, thereby realizing precise control of the internal pressure regulation of the centrifuge to meet the control requirements of the internal pressure of the centrifuge in different working scenarios.
[0014] 2. In the utility model, the quick locking of the centrifuge cover is achieved through the interaction of the various components of the flap mechanism, which significantly reduces the time for installing and removing the cover. When emergency operation or maintenance is required, this quick locking function can quickly open the cover, making it convenient for staff to conduct internal inspections and maintenance, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The utility model provides a main structural stereogram of a centrifuge explosion-proof flip cover mechanism;
[0016] Figure 2 The utility model provides a three-dimensional split diagram of the internal structure of a centrifuge explosion-proof flip cover mechanism;
[0017] Figure 3 The utility model provides a partial structural sectional three-dimensional exploded diagram of a centrifuge explosion-proof flip cover mechanism;
[0018] Figure 4 The utility model provides an enlarged view of structure A in an explosion-proof flip cover mechanism of a centrifuge.
[0019] Legend:
[0020] 1. Centrifuge body; 2. Machine cover; 3. Movable groove; 4. Piston; 5. First spring; 6. Pressure plate; 7. First mounting hole; 8. Bearing; 9. Screw; 10. Turning handle; 11. Threaded groove; 12. Pressure relief groove; 13. Exhaust pipe; 14. First sealing groove; 15. First sealing gasket; 16. Second sealing groove; 17. Second sealing gasket; 18. Fixed block; 19. Arc-shaped slot; 20. Mounting ring; 21. Circular slide groove; 22. Circular slider; 23. Connecting rod; 24. Arc-shaped block; 25. Push block; 26. Second mounting hole; 27. Second spring; 28. Limit block; 29. Limit slot. DETAILED DESCRIPTION
[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.
[0023] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides an explosion-proof flip cover mechanism for a centrifuge, comprising a centrifuge body 1, the top of the centrifuge body 1 movably contacts with a cover 2, the bottom of the cover 2 is provided with a movable groove 3, the inner surface wall of the movable groove 3 is movably inserted with a piston 4, the top of the piston 4 is fixedly connected with four first springs 5, a pressure plate 6 is fixedly connected between the tops of the four first springs 5, the top of the pressure plate 6 is provided with a first mounting hole 7, the inner surface wall of the first mounting hole 7 is fixedly inserted with a bearing 8, the inside of the bearing 8 is fixedly inserted with a screw rod 9, the top of the screw rod 9 is fixedly connected with a turning handle 10, the top of the cover 2 is provided with a threaded groove 11, and the outer wall of the screw rod 9 is threadedly connected to the inner wall of the threaded groove 11, the inner surface wall of the cover 2 is provided with two pressure relief grooves 12, and the inner surface walls of the two pressure relief grooves 12 are fixedly inserted with exhaust pipes 13.
[0024] The effect achieved by the entire embodiment 1 is that when the internal pressure of the centrifuge increases abnormally due to volatilization of materials or increase in temperature, the internal pressure will first push the piston 4 to move upward, and the movement of the piston 4 will squeeze the four first springs 5. This is done to absorb and alleviate the impact caused by part of the pressure increase and to prepare for the subsequent safe pressure relief process. As the piston 4 continues to move, when the piston 4 moves to a certain position, the two pressure relief grooves 12 will be connected to the inside of the centrifuge body 1, so that the high-pressure gas or steam inside the centrifuge can be quickly discharged through the two pressure relief grooves 12 and flow out from the exhaust pipe 13, thereby effectively releasing the internal pressure. This process will continue until The inside of the centrifuge body 1 reaches a safe pressure range, thereby avoiding the risk of explosion caused by excessive internal pressure. After the pressure is released, the four first springs 5 will push the piston 4 back to the initial position under the action of their elastic restoring force. In addition, by rotating the screw 9, the pressure plate 6 can be moved downward to further squeeze the four first springs 5, thereby compressing the four first springs 5. This is done to adjust the safety threshold of the internal pressure of the centrifuge, so that the internal pressure of the centrifuge body 1 must reach a certain level to trigger the movement of the piston 4 and the opening of the pressure relief groove 12, thereby ensuring that the safety pressure relief mechanism will not be frequently triggered due to slight pressure fluctuations during the normal operation of the centrifuge.
[0025] Embodiment 2, as Figure 2-Figure 4 As shown, the outer wall of the piston 4 is provided with a first sealing groove 14, the inner wall of the first sealing groove 14 is fixedly connected with a first sealing gasket 15, the outer wall of the piston 4 is provided with a second sealing groove 16, the inner wall of the second sealing groove 16 is fixedly connected with a second sealing gasket 17, the outer wall of the cover 2 is fixedly installed with a group of fixing blocks 18, one side of the outer wall of the group of fixing blocks 18 is provided with an arc-shaped groove 19, the outer wall of the centrifuge body 1 is fixedly sleeved with a mounting ring 20, the top of the mounting ring 20 is provided with a circular slide 21, the inner wall of the circular slide 21 is slidably embedded with a circular slider 22, the circular slider 22 A group of connecting rods 23 are fixedly installed on the top of the group of connecting rods 23, and arc-shaped blocks 24 are fixedly installed on the top of each group of connecting rods 23, and the outer wall of a group of arc-shaped blocks 24 is movably inserted into the inside of a group of arc-shaped grooves 19, and a push block 25 is fixedly installed on the outer wall of the circular slider 22, and a second mounting hole 26 is opened on the top of the push block 25, and two second springs 27 are fixedly connected to the inner wall of the second mounting hole 26, and a limiting block 28 is fixedly connected between the tops of the two second springs 27, and a limiting groove 29 is opened on the outer wall of the mounting ring 20, and the outer wall of the limiting block 28 is movably inserted into the inside of the limiting groove 29.
[0026] The effect achieved by the entire embodiment 2 is that when the bottom of the cover 2 contacts the top of the centrifuge body 1, by pushing the push block 25, the push block 25 drives the circular slider 22 to perform a circular motion inside the circular slide groove 21, and the circular slider 22 then drives a group of connecting rods 23 and a group of arc-shaped clamping blocks 24 to move synchronously, so that a group of arc-shaped clamping blocks 24 are clamped into a group of arc-shaped clamping grooves 19, so that a group of fixing blocks 18 are stably fixed, thereby ensuring that the cover 2 is tightly connected to the centrifuge body 1 and is firmly locked. When a group of arc-shaped clamping blocks 24 completely enters a group of arc-shaped clamping grooves 19, , the limit block 28 just reaches the bottom of the limit groove 29, and under the elastic action of the two second springs 27, the limit block 28 is stuck in the limit groove 29, so that the push block 25 and the circular slider 22 are stably fixed to prevent the cover 2 from being accidentally opened during the operation of the centrifuge. If it is necessary to release the lock of the cover 2, just press the limit block 28 to make it enter the second mounting hole 26, and rotate the push block 25 in the opposite direction, so that a group of arc-shaped blocks 24 will be moved out from a group of arc-shaped grooves 19, thereby releasing the locking state of the cover 2 and the centrifuge body 1, so that the cover 2 can be safely opened.
[0027] Working principle: During the use of the centrifuge, first ensure that the cover 2 is properly closed, then the staff pushes the push block 25, which drives the circular slider 22 to perform a circular motion on the inner surface wall of the circular slide 21. The movement of the circular slider 22 then drives a group of connecting rods 23 and a group of arc-shaped clamping blocks 24 to perform a circular motion synchronously, so that a group of arc-shaped clamping blocks 24 are accurately clamped into a group of arc-shaped clamping grooves 19 opened on one side of the outer wall of a group of fixed blocks 18, ensuring that a group of fixed blocks 18 are stably fixed, thereby making the centrifuge The cover 2 and the centrifuge body 1 are firmly locked. When a group of arc-shaped blocks 24 completely enter a group of arc-shaped slots 19, the limit block 28 will just reach the bottom of the limit slot 29. Under the elastic action of the two second springs 27, the limit block 28 will stably fit into the limit slot 29, thereby ensuring the stable fixation of the push block 25 and the circular slider 22, preventing the cover 2 from accidentally opening during the operation of the centrifuge. When the internal pressure of the centrifuge body 1 increases due to some reasons, this pressure will first push the piston 4 moves upward, and the movement of the piston 4 will squeeze the four first springs 5 to form a certain buffer. When the piston 4 moves to a certain position, the two pressure relief grooves 12 will be connected with the inside of the centrifuge body 1, so that the internal high-pressure gas can be discharged smoothly through the two pressure relief grooves 12 and discharged from the centrifuge body 1 from the two exhaust pipes 13. This process will continue until the inside of the centrifuge body 1 reaches a safe pressure level, thereby protecting the centrifuge from damage caused by excessive pressure and preventing accidents. After the pressure is released, the four first springs 5 will push the piston 4 back to the initial position under the action of their elastic restoring force, and by rotating the screw 9, the screw 9 and the thread groove 11 can be used to move the pressure plate 6 downward, thereby further squeezing the four first springs 5, and adjusting the spring compression to meet different working pressure requirements. At the same time, the first sealing gasket 15 and the second sealing gasket 17 can effectively prevent the leakage of gas or liquid during the operation of the centrifuge, ensuring the safe and stable operation of the centrifuge.
[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A centrifuge explosion-proof cover mechanism, comprising a centrifuge body (1), characterized in that: The top of the centrifuge body (1) is movably in contact with a cover (2), the bottom of the cover (2) is provided with a movable groove (3), the inner surface wall of the movable groove (3) is movably inserted with a piston (4), the top of the piston (4) is fixedly connected with four first springs (5), the tops of the four first springs (5) are fixedly connected with a pressure plate (6), the top of the pressure plate (6) is provided with a first mounting hole (7), the inner surface wall of the first mounting hole (7) is fixedly inserted with a bearing (8), the inside of the bearing (8) is fixedly inserted with a screw rod (9), the top of the screw rod (9) is fixedly connected with a handle (10), the top of the cover (2) is provided with a threaded groove (11), and the outer surface wall of the screw rod (9) is threadedly connected with the inner surface wall of the threaded groove (11), the inner surface wall of the cover (2) is provided with two pressure relief grooves (12), and the inner surface walls of the two pressure relief grooves (12) are fixedly inserted with exhaust pipes (13).
2. The explosion-proof cover mechanism of a centrifuge according to claim 1, characterized in that: The outer wall of the piston (4) is provided with a first sealing groove (14), the inner wall of the first sealing groove (14) is fixedly connected with a first sealing gasket (15), the outer wall of the piston (4) is provided with a second sealing groove (16), the inner wall of the second sealing groove (16) is fixedly connected with a second sealing gasket (17), and the outer wall of the machine cover (2) is fixedly mounted with a group of fixing blocks (18).
3. The explosion-proof cover mechanism of a centrifuge according to claim 2, characterized in that: An arc-shaped groove (19) is provided on one side of the outer wall of a group of the fixing blocks (18); a mounting ring (20) is provided on the outer wall fixing sleeve of the centrifuge body (1); a circular slide groove (21) is provided on the top of the mounting ring (20); and a circular sliding block (22) is slidably embedded in the inner wall of the circular slide groove (21).
4. The explosion-proof cover mechanism of a centrifuge according to claim 3, characterized in that: A group of connecting rods (23) are fixedly mounted on the top of the circular slider (22), and an arc-shaped clamping block (24) is fixedly mounted on the top of each group of connecting rods (23), and the outer wall of each group of arc-shaped clamping blocks (24) is movably inserted into the interior of each group of arc-shaped clamping grooves (19).
5. The explosion-proof cover mechanism of a centrifuge according to claim 4, characterized in that: A push block (25) is fixedly mounted on the outer wall of the circular sliding block (22), and a second mounting hole (26) is formed on the top of the push block (25).
6. The explosion-proof cover mechanism of a centrifuge according to claim 5, characterized in that: Two second springs (27) are fixedly connected to the inner surface wall of the second mounting hole (26), and a limiting block (28) is fixedly connected between the tops of the two second springs (27).
7. The explosion-proof cover mechanism of a centrifuge according to claim 6, characterized in that: The outer wall of the mounting ring (20) is provided with a limiting groove (29), and the outer wall of the limiting block (28) is movably inserted into the limiting groove (29).