Centrifugal spin dryer with self-cleaning structure
By designing a self-cleaning structure, the inner cylinder's outer wall is automatically cleaned using a motor-driven lead screw and telescopic rod, solving the problem of clogging in the inner cylinder of traditional centrifugal dryers and improving cleaning efficiency and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGDE BANGYUAN ENERGY TECH CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional centrifugal dryers are prone to accumulating impurities on the outer wall of the inner drum during use, which can clog the holes and make manual cleaning inconvenient and time-consuming.
A self-cleaning structure is designed, in which a motor drives a lead screw to move a connecting rod and a telescopic rod, so that the brush plate fits against the outer wall of the inner cylinder. Combined with the rotation of the inner cylinder, automatic cleaning is achieved, and the brush plate can be easily disassembled for cleaning impurities.
It achieves automatic cleaning of the inner cylinder's outer wall, reducing manual intervention, improving cleaning efficiency, and lowering time and labor costs.
Smart Images

Figure CN224151288U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of centrifugal dryer technology, specifically relating to a centrifugal dryer with a self-cleaning structure. Background Technology
[0002] A centrifugal spin dryer is a mechanical device that uses centrifugal force to accelerate the separation of solid-liquid mixtures. Its working principle is based on centrifugal motion. When the device rotates at high speed, the liquid, due to its lower density and fluidity, is thrown against the drum wall and discharged through filter holes under centrifugal force, while the solid is pressed against the inner wall of the drum by centrifugal force, thus achieving solid-liquid separation. This equipment has wide applications. In the industrial field, textile printing and dyeing plants use it to quickly spin dry dyed fabrics, improving production efficiency; food processing plants can separate fruit juices and pulps to ensure product quality. In daily life, the spin-drying function of household washing machines essentially follows the same principle as a centrifugal spin dryer, allowing clothes to be quickly dehydrated. Compared to traditional dehydration methods such as natural air drying, centrifugal spin dryers have higher dehydration efficiency, achieving a dehydration rate of 60%-80%; they are applicable to a wide range of materials, can handle various forms of materials, are easy to operate, and can reduce labor costs.
[0003] Currently, existing centrifugal dryers typically use a rotating inner drum to eject moisture from the contents through the drum's holes under centrifugal force. However, after prolonged use, the outer wall of the inner drum of a traditional centrifugal dryer may accumulate a large amount of impurities, which may eventually clog some of the holes. Manual cleaning requires disassembling the equipment and removing the inner drum, which is inconvenient and time-consuming. Utility Model Content
[0004] The purpose of this invention is to provide a centrifugal dryer with a self-cleaning structure, which aims to solve the problem that existing centrifugal dryers, during use, typically use a rotating inner drum to allow the moisture contained in the items inside the drum to be spun out through the holes of the inner drum under the action of centrifugal force. However, after long-term use, the outer wall of the inner drum of traditional centrifugal dryers may accumulate a large amount of impurities, and over time, some holes may be blocked. If cleaning is done manually, the equipment needs to be disassembled and the inner drum needs to be removed, which is very inconvenient and time-consuming.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a centrifugal dryer with a self-cleaning structure, comprising a base, an outer cylinder fixedly connected to the top of the base, a first motor installed at the bottom of the base, an inner cylinder connected to the output end of the first motor, a drain pipe connected to the bottom of the base, a connecting seat fixedly connected to the outer wall of the outer cylinder, a second motor installed on the outer wall of the connecting seat, a lead screw connected to the output end of the second motor, a threaded sleeve threadedly connected to the outer wall of the lead screw, a connecting rod fixedly connected to the outer wall of the threaded sleeve, a telescopic rod fixedly connected to the outer wall of the connecting rod, and a brush plate installed at one end of the telescopic rod.
[0006] As a preferred embodiment of the centrifugal dryer with a self-cleaning structure according to this utility model, a guide rod is fixedly connected inside the connecting seat, and the end of the connecting rod away from the threaded sleeve is sleeved on the outer wall of the guide rod.
[0007] As a preferred embodiment of the centrifugal dryer with a self-cleaning structure according to this utility model, one end of the telescopic rod extends through into the interior of the outer cylinder.
[0008] In a preferred embodiment of the centrifugal dryer with a self-cleaning structure according to this utility model, the end of the lead screw away from the second motor is connected to the connecting seat through a bearing to form a rotating connection structure.
[0009] As a preferred embodiment of the centrifugal dryer with a self-cleaning structure of this utility model, a limiting hole is provided at one end of the telescopic rod, two connecting sleeves are fixedly connected to the outer wall of the brush plate, and mounting bases are fixedly connected to the outer walls of the two connecting sleeves. A pull rod is inserted through one end of the mounting base, a movable block is fixedly connected to one end of the pull rod, a limiting pin is fixedly connected to one end of the movable block, and a spring is sleeved on the outer wall of the pull rod.
[0010] In a preferred embodiment of the centrifugal dryer with a self-cleaning structure according to this utility model, the end of the limiting pin away from the movable block is inserted through the inside of the connecting sleeve.
[0011] As a preferred embodiment of the centrifugal dryer with a self-cleaning structure according to this utility model, the telescopic rod can form an elastic engagement structure with the brush plate through a limiting hole, a connecting sleeve, a mounting base, a pull rod, a movable block, a limiting pin, and a spring.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] The second motor drives the lead screw to rotate clockwise, causing the threaded sleeve connected to its outer wall to move the connecting rod along the guide rod. At the same time, the telescopic rod on the outer wall of the connecting rod will continuously move inward into the outer cylinder until the bristles of the brush plate at one end of the telescopic rod are in contact with the outer wall of the inner cylinder. Then, the first motor drives the inner cylinder to rotate slowly, and the brush plate can clean the outer wall of the inner cylinder, thus achieving self-cleaning.
[0014] Pulling the lever moves the movable block, causing the limit pin to retract. At this time, one end of the limit pin will disengage from the limit hole at the end of the telescopic rod. Then, by pulling the brush plate, one end of the telescopic rod will disengage from the connecting sleeve, thus enabling easy disassembly of the brush plate for subsequent cleaning of impurities on the brush bristles. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the disassembled structure in the main sectional view of this utility model;
[0019] Figure 4 This is an enlarged structural diagram of the present invention (A).
[0020] Figure 5 This is an enlarged structural schematic diagram of the present invention, B.
[0021] In the diagram: 1. Base; 2. Outer cylinder; 3. First motor; 4. Inner cylinder; 5. Drain pipe; 6. Connecting seat; 7. Second motor; 8. Lead screw; 9. Threaded sleeve; 10. Connecting rod; 11. Telescopic rod; 12. Brush plate; 13. Guide rod; 14. Limiting hole; 15. Connecting sleeve; 16. Mounting seat; 17. Pull rod; 18. Movable block; 19. Limiting pin; 20. Spring. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1-5 The present invention provides the following technical solution: a centrifugal dryer with a self-cleaning structure, comprising a base 1, an outer cylinder 2 fixedly connected to the top of the base 1, a first motor 3 installed at the bottom of the base 1, an inner cylinder 4 connected to the output end of the first motor 3, a drain pipe 5 connected to the bottom of the base 1, a connecting seat 6 fixedly connected to the outer wall of the outer cylinder 2, a second motor 7 installed on the outer wall of the connecting seat 6, a lead screw 8 connected to the output end of the second motor 7, a threaded sleeve 9 threadedly connected to the outer wall of the lead screw 8, a connecting rod 10 fixedly connected to the outer wall of the threaded sleeve 9, a telescopic rod 11 fixedly connected to the outer wall of the connecting rod 10, and a brush plate 12 installed at one end of the telescopic rod 11.
[0024] Preferably, a guide rod 13 is fixedly connected inside the connecting seat 6, and the end of the connecting rod 10 away from the threaded sleeve 9 is sleeved on the outer wall of the guide rod 13. One end of the telescopic rod 11 extends through to the inside of the outer cylinder 2, and the end of the lead screw 8 away from the second motor 7 forms a rotating connection structure with the connecting seat 6 through a bearing.
[0025] In practical use, the second motor 7 drives the lead screw 8 to rotate clockwise, so that the threaded sleeve 9 connected to its outer wall can drive the connecting rod 10 to move along the guide rod 13. At the same time, the telescopic rod 11 on the outer wall of the connecting rod 10 will continuously move towards the inside of the outer cylinder 2 until the bristles of the brush plate 12 at one end of the telescopic rod 11 are in contact with the outer wall of the inner cylinder 4. Then, the first motor 3 drives the inner cylinder 4 to rotate slowly, and the brush plate 12 can clean the outer wall of the inner cylinder 4, thereby achieving self-cleaning.
[0026] Conversely, the second motor 7 drives the lead screw 8 to rotate counterclockwise, causing the threaded sleeve 9 connected to its outer wall to drive the connecting rod 10 to move in the opposite direction along the guide rod 13. At the same time, the telescopic rod 11 on the outer wall of the connecting rod 10 will retract into the connecting seat 6, causing the bristles of the brush plate 12 at one end of the telescopic rod 11 to separate from the outer wall of the inner cylinder 4.
[0027] Preferably, one end of the telescopic rod 11 has a limiting hole 14, and two connecting sleeves 15 are fixedly connected to the outer wall of the brush plate 12. The outer walls of the two connecting sleeves 15 are fixedly connected to the mounting base 16. One end of the mounting base 16 is inserted through a pull rod 17, and one end of the pull rod 17 is fixedly connected to a movable block 18. One end of the movable block 18 is fixedly connected to a limiting pin 19, and a spring 20 is sleeved on the outer wall of the pull rod 17. The end of the limiting pin 19 away from the movable block 18 is inserted through the connecting sleeve 15. The telescopic rod 11 can form an elastic engagement structure with the brush plate 12 through the limiting hole 14, connecting sleeve 15, mounting base 16, pull rod 17, movable block 18, limiting pin 19, and spring 20.
[0028] In practical use, the movable block 18 is pulled by the pull rod 17 to retract the limiting pin 19. At this time, one end of the limiting pin 19 will disengage from the limiting hole 14 at the end of the telescopic rod 11. Then, by pulling the brush plate 12, one end of the telescopic rod 11 will disengage from the connecting sleeve 15, thereby making it easy to disassemble the brush plate 12 for subsequent cleaning of impurities on the brush bristles.
[0029] Conversely, during installation, the movable block 18 is pulled by the pull rod 17 to retract the limiting pin 19, and then one end of the telescopic rod 11 is inserted into the connecting sleeve 15. At this time, the pull rod 17 is released, and the limiting pin 19 will pop out under the action of the spring 20 and insert into the limiting hole 14, thereby achieving fixation.
[0030] Working principle: First, the material is placed into the inner cylinder 4. Then, the first motor 3 drives the inner cylinder 4 to rotate. At this time, centrifugal force is used to throw the liquid in the material out through the holes on the inner cylinder 4. When it is necessary to clean the outer wall of the inner cylinder 4, the second motor 7 drives the lead screw 8 to rotate clockwise, so that the threaded sleeve 9 connected to the outer wall can drive the connecting rod 10 to move along the guide rod 13. At the same time, the telescopic rod 11 on the outer wall of the connecting rod 10 will continuously move inward into the outer cylinder 2 until the bristles of the brush plate 12 at one end of the telescopic rod 11 are in contact with the inner cylinder. 4. The outer walls are attached together, and then the first motor 3 drives the inner cylinder 4 to rotate slowly. The brush plate 12 can clean the outer wall of the inner cylinder 4, thereby achieving self-cleaning. The pull rod 17 pulls the movable block 18 to drive the limit pin 19 to retract. At this time, one end of the limit pin 19 will disengage from the limit hole 14 at the end of the telescopic rod 11. Then, by pulling the brush plate 12, one end of the telescopic rod 11 will disengage from the connecting sleeve 15, thereby enabling the brush plate 12 to be easily disassembled for subsequent cleaning of impurities on the brush bristles.
[0031] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A centrifugal spin dryer with self-cleaning structure comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to the outer cylinder (2), the bottom of the base (1) is equipped with a first motor (3), the output end of the first motor (3) is connected to the inner cylinder (4), the bottom of the base (1) is connected to the drain pipe (5), the outer wall of the outer cylinder (2) is fixedly connected to the connecting seat (6), the outer wall of the connecting seat (6) is equipped with a second motor (7), the output end of the second motor (7) is connected to the lead screw (8), the outer wall of the lead screw (8) is threadedly connected to the threaded sleeve (9), the outer wall of the threaded sleeve (9) is fixedly connected to the connecting rod (10), the outer wall of the connecting rod (10) is fixedly connected to the telescopic rod (11), and one end of the telescopic rod (11) is equipped with a brush plate (12).
2. A centrifugal spin dryer with a self-cleaning structure according to claim 1, characterized in that: The connecting seat (6) is internally fixedly connected to a guide rod (13), and the end of the connecting rod (10) away from the threaded sleeve (9) is sleeved on the outer wall of the guide rod (13).
3. A centrifugal dryer with a self-cleaning structure according to claim 1, characterized in that: One end of the telescopic rod (11) extends through into the interior of the outer cylinder (2).
4. The centrifugal spin dryer with a self-cleaning structure according to claim 1, characterized in that: The end of the lead screw (8) away from the second motor (7) is connected to the connecting seat (6) via a bearing to form a rotating connection structure.
5. The centrifugal spin dryer with a self-cleaning structure according to claim 1, characterized in that: One end of the telescopic rod (11) has a limiting hole (14). The outer wall of the brush plate (12) is fixedly connected to two connecting sleeves (15). The outer walls of the two connecting sleeves (15) are fixedly connected to a mounting base (16). One end of the mounting base (16) is through which a pull rod (17) is inserted. One end of the pull rod (17) is fixedly connected to a movable block (18). One end of the movable block (18) is fixedly connected to a limiting pin (19). The outer wall of the pull rod (17) is sleeved with a spring (20).
6. A centrifugal spin dryer with a self-cleaning structure according to claim 5, characterized in that: The end of the limiting pin (19) away from the movable block (18) is inserted through the connecting sleeve (15).
7. The centrifugal spin dryer with self-cleaning structure according to claim 5, characterized in that: The telescopic rod (11) can form an elastic engagement structure with the brush plate (12) through the limiting hole (14), connecting sleeve (15), mounting base (16), pull rod (17), movable block (18), limiting pin (19), and spring (20).