Novel sealing structure of bag-pulling centrifugal machine
By employing a fixed component and a motor-driven threaded component transmission mechanism in the bag centrifuge, the sealing cap can be quickly disassembled and assembled, solving the problem of low disassembly efficiency of the sealing cap in the prior art, improving maintenance efficiency and ensuring sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-03-06
AI Technical Summary
The existing sealing structure of bag centrifuges is inefficient when disassembling the sealing cover, resulting in high maintenance difficulty and cost, and the sealing effect is not reliable enough.
By employing the rapid locking and releasing function of the fixed components, combined with the transmission mechanism of the motor drive and threaded components, the sealing cap and centrifuge can be quickly separated and connected, ensuring a stable connection of the sealing cap.
It improves the speed of disassembly and assembly of the sealing cap, reduces maintenance difficulty and cost, ensures the reliability of the sealing effect, and provides a larger operating space for easy inspection and maintenance.
Smart Images

Figure CN223970134U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bag centrifuge technology, and in particular to a novel sealing structure for a bag centrifuge. Background Technology
[0002] A bag-pulling centrifuge is a commonly used device for solid-liquid separation. It mainly consists of a drum, a main shaft, and a bag-pulling device. During operation, the drum rotates at high speed to generate centrifugal force to achieve solid-liquid separation. The bag-pulling device can assist in unloading. It features good separation effect and convenient unloading, and is widely used in chemical, pharmaceutical and other industries.
[0003] During the solid-liquid separation process of a bag centrifuge, it is necessary to seal it to prevent material leakage, dust emission, and the mixing of external impurities. The sealing structure of a bag centrifuge usually uses a sealing cover to tightly seal the inside of the machine body, combined with sealing gaskets, sealing rings and other components, to form an effective sealing barrier at the connection points, ensuring the airtightness of the working environment inside the centrifuge and ensuring stable and efficient separation operations.
[0004] However, the existing sealing structure of bag centrifuges has the following shortcomings:
[0005] In the existing technology, the sealing cover of the bag centrifuge sealing structure usually relies on a large number of fasteners for fixation during use. This means that each time the sealing cover is opened, multiple fasteners must be removed one by one, which greatly reduces the opening efficiency of the sealing cover, increases the difficulty of equipment maintenance, and leads to higher maintenance costs.
[0006] Therefore, we propose a novel sealing structure for a bag-type centrifuge to address the problems mentioned above. Utility Model Content
[0007] The purpose of this invention is to provide a novel sealing structure for a bag-type centrifuge. By utilizing the rapid locking and releasing function of the fixing component, the fixed state of the sealing cover can be released. Furthermore, through the transmission mechanism of the motor drive and the threaded component, the sealing cover can be quickly separated from the centrifuge, thereby solving the problems mentioned in the background art.
[0008] To achieve the above objectives, the present invention adopts the following technical solution: a novel sealing structure for a bag-type centrifuge, comprising a support base, a centrifuge body disposed inside the support base, a sealing cover movably contacting the top of the centrifuge body, a set of locking blocks fixedly connected to the outer wall of the sealing cover, a limiting groove formed on one side of the outer wall of each set of locking blocks, a set of fixing blocks fixedly connected to the outer wall of the centrifuge body, a slot formed on the top of each set of fixing blocks, and the outer wall of the set of locking blocks movably inserted into the slot of the set of locking blocks, an annular plate fixedly connected to the outer wall of the centrifuge body, an annular groove formed on the top of the annular plate, an annular slider slidably embedded in the inner wall of the annular groove, a set of annular limiting blocks fixedly connected to the top of the annular slider, and the outer wall of the set of annular limiting blocks movably inserted into the slot of the set of limiting blocks.
[0009] Preferably, a movable block is fixedly connected to the top of the annular limiting block, a fixed groove is provided on the top of the movable block, an installation block is fixedly connected to the outer wall of the sealing cover, a limiting rod is movably inserted into the inner wall of the installation block, and the outer wall of the limiting rod is movably inserted into the inside of the fixed groove.
[0010] Preferably, a return spring is movably sleeved on the outer wall of the limiting rod, a sliding frame is fixedly connected to the top of the sealing cover, and a threaded rod is threadedly connected to the inner wall of the sliding frame.
[0011] Preferably, a first motor is fixedly connected to the top of the threaded rod, and two first bearings are fixedly sleeved on the outer wall of the threaded rod.
[0012] Preferably, a vertical plate is fixedly sleeved between the outer walls of the two first bearings, and the outer wall of the sliding frame is movably inserted into the interior of the vertical plate, and a support plate is fixedly connected to the outer wall of the centrifuge body.
[0013] Preferably, a second bearing is fixedly inserted into the inner surface wall of the support plate, a rotating rod is fixedly inserted into the inside of the second bearing, and the outer surface wall of the rotating rod is fixedly inserted into the inside of the vertical plate.
[0014] Preferably, a second motor is fixedly connected to the bottom of the rotating rod, and an arc-shaped limiting block is fixedly connected to the outer wall of the centrifuge body.
[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0016] 1. In this utility model, through the interaction of the various components of the device, the fixing component can quickly lock and release, thus releasing the fixed state of the sealing cover. Through the transmission mechanism of the motor drive and the threaded component, the sealing cover can be quickly separated from the centrifuge. This method improves the disassembly and assembly speed of the sealing cover and greatly enhances the opening efficiency of the sealing cover. Furthermore, this improvement greatly reduces the maintenance difficulty of the equipment and effectively reduces maintenance costs. In addition, this installation method also ensures that a stable tenon and mortise connection structure is formed between the sealing cover and the centrifuge, which strongly guarantees the reliability of the sealing effect.
[0017] 2. In this utility model, through the interaction of the various components of the device, the sealing cover can be rotated by the motor drive combined with the transmission of the rotating component, thereby removing the sealing cover from the top of the centrifuge. This allows the operator to have more operating space above the centrifuge body, facilitating comprehensive inspection, maintenance and repair of the centrifuge body. Attached Figure Description
[0018] Figure 1 This utility model provides a front view perspective view of a novel sealing structure for a bag-type centrifuge.
[0019] Figure 2 This utility model provides a partial sectional perspective view of a novel sealing structure for a bag-type centrifuge.
[0020] Figure 3 This utility model provides a three-dimensional exploded view of a portion of the structure in a novel sealing structure for a bag-type centrifuge.
[0021] Figure 4 This utility model provides a partial sectional perspective view of a novel sealing structure for a bag-type centrifuge.
[0022] Figure 5 This invention presents a partial side-view perspective exploded view of a novel sealing structure for a bag-type centrifuge.
[0023] Legend: 1. Support base; 2. Centrifuge body; 3. Sealing cover; 4. Locking block; 5. Limiting groove; 6. Fixing block; 7. Locking groove; 8. Annular plate; 9. Annular slide groove; 10. Annular slider; 11. Annular limiting block; 12. Moving block; 13. Fixing groove; 14. Mounting block; 15. Limiting rod; 16. Return spring; 17. Sliding frame; 18. Threaded rod; 19. First motor; 20. First bearing; 21. Vertical plate; 22. Support plate; 23. Second bearing; 24. Rotating rod; 25. Second motor; 26. Arc-shaped limiting block. Detailed Implementation
[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0026] Example 1, as shown in the attached document Figure 1 -Appendix Figure 5 As shown, this utility model provides a technical solution: a novel sealing structure for a bag-type centrifuge, including a support base 1, a centrifuge body 2 disposed inside the support base 1, a sealing cover 3 movably contacting the top of the centrifuge body 2, a set of locking blocks 4 fixedly connected to the outer wall of the sealing cover 3, a limit groove 5 formed on one side of the outer wall of each set of locking blocks 4, a set of fixing blocks 6 fixedly connected to the outer wall of the centrifuge body 2, a slot 7 formed on the top of each set of fixing blocks 6, and the outer wall of the set of locking blocks 4 movably inserted into the slot 7, an annular plate 8 fixedly connected to the outer wall of the centrifuge body 2, an annular groove 9 formed on the top of the annular plate 8, an annular slider 10 slidably embedded in the inner surface of the annular groove 9, and the top of the annular slider 10 fixedly connected to... A set of annular limiting blocks 11 are connected, and the outer wall of the set of annular limiting blocks 11 is movably inserted into the inside of a set of limiting grooves 5. A movable block 12 is fixedly connected to the top of the annular limiting blocks 11, and a fixed groove 13 is opened on the top of the movable block 12. An installation block 14 is fixedly connected to the outer wall of the sealing cover 3. A limiting rod 15 is movably inserted into the inner wall of the installation block 14, and the outer wall of the limiting rod 15 is movably inserted into the inside of the fixed groove 13. A return spring 16 is movably sleeved on the outer wall of the limiting rod 15. A sliding frame 17 is fixedly connected to the top of the sealing cover 3. A threaded rod 18 is threadedly connected to the inner wall of the sliding frame 17. A first motor 19 is fixedly connected to the top of the threaded rod 18. Two first bearings 20 are fixedly sleeved on the outer wall of the threaded rod 18.
[0027] The effect achieved by the entire embodiment 1 is as follows: When it is necessary to disassemble the sealing cover 3 to replace the sealing strip or to repair the centrifuge, the operator first pulls the limiting rod 15 to disengage it from the fixed groove 13, thereby releasing the fixed state of the moving block 12. Then, the operator pushes the moving block 12 to make the annular slider 10 slide in the annular groove 9. The annular slider 10 drives a set of annular limiting blocks 11 to move synchronously, so that they move out from the corresponding limiting groove 5, thereby releasing the fixation of a set of locking blocks 4 and the sealing cover 3. At this time, the first motor 19 is started, and through the threaded assembly transmission, the sealing cover 3 is moved in the vertical direction to disengage it from the centrifuge body 2. At this time, the operator can conveniently inspect and replace the sealing assembly and maintain the internal parts of the centrifuge. This quick disassembly method improves the equipment maintenance efficiency, and this fixing method can make the sealing cover 3 and the centrifuge body 2 form a stable tenon and mortise structure, effectively ensuring the sealing effect.
[0028] Example 2, as Figure 2-5 As shown, a vertical plate 21 is fixedly sleeved between the outer walls of the two first bearings 20, and the outer wall of the sliding frame 17 is movably inserted into the interior of the vertical plate 21. A support plate 22 is fixedly connected to the outer wall of the centrifuge body 2, and a second bearing 23 is fixedly inserted into the inner wall of the support plate 22. A rotating rod 24 is fixedly inserted into the interior of the second bearing 23, and the outer wall of the rotating rod 24 is fixedly inserted into the interior of the vertical plate 21. A second motor 25 is fixedly connected to the bottom of the rotating rod 24, and an arc-shaped limiting block 26 is fixedly connected to the outer wall of the centrifuge body 2.
[0029] The effect achieved by the entire embodiment 2 is as follows: after the sealing cover 3 completes the lifting action with the help of the threaded assembly, the second motor 25 can be started. The output end of the second motor 25 drives the rotating rod 24 to rotate, and the rotating rod 24 in turn drives the vertical plate 21 to rotate. The vertical plate 21 drives the lifted sealing cover 3 to rotate accordingly, thereby removing the sealing cover 3 from the top of the centrifuge body 2. This operation allows the staff to obtain a larger operating space above the centrifuge body 2, which is convenient for comprehensive inspection, maintenance and other work of the centrifuge body 2.
[0030] The working principle of the entire device is as follows: When it is necessary to disassemble the sealing cover 3, the operator first pulls the limiting rod 15 to disengage it from the fixing groove 13, thereby releasing the fixation of the moving block 12. Then, the moving block 12 is moved, allowing the annular slider 10 to slide in the annular groove 9. The annular slider 10 drives a set of annular limiting blocks 11 to move synchronously, causing the set of annular limiting blocks 11 to move out of the corresponding limiting groove 5, thereby releasing the fixation of a set of locking blocks 4 and the sealing cover 3. At this time, the first motor 19 is started, and its output end drives the threaded rod 18 to rotate. Since the outer wall of the threaded rod 18 is threadedly connected to the inner wall of the sliding frame 17, the rotation of the threaded rod 18 can make the sliding frame 17 move vertically. The sliding frame 17 then moves the sealing cover 3 vertically, causing it to detach from the centrifuge. At this time, the staff can easily inspect and replace the sealing components, and also maintain the internal parts of the centrifuge. By starting the second motor 25, its output end drives the rotating rod 24 to rotate, and the rotating rod 24 drives the vertical plate 21 to rotate, causing the lifted sealing cover 3 to rotate and detach from the top of the centrifuge body 2, providing the staff with more space to conduct a comprehensive inspection of the centrifuge body 2. When it is time to install the sealing cover 3, the above steps are reversed, so that the sealing cover 3 and the centrifuge body 2 can form a stable tenon and mortise structure, and the arc-shaped limiting block 26 can prevent the sealing cover 3 from rotating excessively.
[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A novel seal structure for a draw-bag centrifuge, characterized by: The utility model relates to a centrifuge, including support seat (1), the inside of support seat (1) is provided centrifuge body (2), the top of centrifuge body (2) is contacted with sealing cover (3) movably, the outer wall of sealing cover (3) is fixedly connected with a group of clamping blocks (4), the outer wall one side of a group of clamping blocks (4) is all provided with limiting slot (5), the outer wall of centrifuge body (2) is fixedly connected with a group of fixed blocks (6), the top of a group of fixed blocks (6) is all provided with clamping groove (7), and the outer wall of a group of clamping blocks (4) is movably inserted in the inside of a group of clamping groove (7), the outer wall of centrifuge body (2) is fixedly connected with annular plate (8), the top of annular plate (8) is provided with annular slide groove (9), the inner wall of annular slide groove (9) is slidably embedded with annular slide block (10), the top of annular slide block (10) is fixedly connected with a group of annular limit blocks (11), and the outer wall of a group of annular limit blocks (11) is movably inserted in the inside of a group of limiting slot (5).
2. A new sealing structure of a draw-bag centrifuge according to claim 1, characterized in that: The top of annular limit block (11) is fixedly connected with moving block (12), the top of moving block (12) is provided with fixed slot (13), the outer wall of sealing cover (3) is fixedly connected with mounting block (14), the inner wall of mounting block (14) is movably inserted with limiting rod (15), and the outer wall of limiting rod (15) is movably inserted in the inside of fixed slot (13).
3. A new sealing structure of a draw-bag centrifuge according to claim 2, characterized in that: The outer wall of limiting rod (15) is movably sleeved with return spring (16), the top of sealing cover (3) is fixedly connected with sliding frame (17), and the inner wall of sliding frame (17) is threadedly connected with threaded rod (18).
4. A new sealing structure of a draw-bag centrifuge according to claim 3, characterized in that: The top of threaded rod (18) is fixedly connected with first motor (19), and the outer wall of threaded rod (18) is fixedly sleeved with two first bearings (20).
5. A new seal structure for a drawstring centrifuge bag according to claim 4, characterized in that: The outer wall between two first bearings (20) is fixedly sleeved with vertical plate (21), and the outer wall of sliding frame (17) is movably inserted in the inside of vertical plate (21), and the outer wall of centrifuge body (2) is fixedly connected with support plate (22).
6. A new seal structure for a drawstring centrifuge bag according to claim 5, characterized in that: The inner wall of support plate (22) is fixedly inserted with second bearing (23), the inside of second bearing (23) is fixedly inserted with rotating rod (24), and the outer wall of rotating rod (24) is fixedly inserted in the inside of vertical plate (21).
7. A new seal structure for a drawstring centrifuge bag according to claim 6, characterized in that: The bottom of rotating rod (24) is fixedly connected with second motor (25), and the outer wall of centrifuge body (2) is fixedly connected with arc limit block (26).