Dust falling prevention device of dust collector
By designing an arc-shaped plate and sliding rod assembly for the anti-tipping dust device, the problem of the anti-tipping dust structure getting stuck in the vacuum cleaner is solved, enabling convenient cleaning and efficient restoration, and improving the ease of use and dust collection efficiency of the vacuum cleaner.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU KPA ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-12
AI Technical Summary
The existing dust-proof structure is prone to getting stuck when the vacuum cleaner sucks in larger debris, causing the dust-proof structure to fail and requiring the vacuum cleaner to be disassembled to restore it, thus affecting the vacuuming efficiency.
A dust-prevention device for preventing tipping has been designed, comprising components such as an arc-shaped plate, a connecting pipe, a collar, a toggle plate, a slide bar, a spring, and a sliding ring. By simply pulling the toggle plate, stuck impurities can be cleared. The slide bar pushes the arc-shaped plate to push the impurities into the dust collection box, and the spring resets to ensure that the anti-tipping pad closes again.
It enables quick removal of stuck debris without disassembling the vacuum cleaner, improving cleaning efficiency and equipment integrity, while maintaining the device's sealing performance and optimal operating condition.
Smart Images

Figure CN224220048U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of vacuum cleaner devices, specifically relating to a device for preventing dust from being spilled from a vacuum cleaner. Background Technology
[0002] A vacuum cleaner is a household appliance that uses an electric motor to drive a fan to generate negative pressure, thereby sucking in air and dust. It separates dust and dirt through a built-in filtration system and collects them in a dust bag or dust chamber. The cleaned air is then discharged after filtration. Vacuum cleaners are usually equipped with a variety of nozzles and attachments to meet the cleaning needs of different surfaces and corners, such as floors, carpets, and furniture crevices. The dust-proof device of a vacuum cleaner is a structure designed to prevent dust from spilling back into the air when emptying the dust chamber or dust bag. Without this device, when the user emptys the collected dust, the dust may be re-scattered due to airflow or gravity, causing secondary pollution. This device usually uses a sealed structure to prevent the dust from flowing back, ensuring that the dust is collected and disposed of in a concentrated manner when emptying, instead of flying around.
[0003] However, the existing dust-proof structure may get stuck when the vacuum cleaner sucks in large debris, causing the structure to remain in a half-open state and thus malfunction. In addition, to restore the structure, the vacuum cleaner needs to be disassembled, which is troublesome and affects the vacuum cleaner's suction efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a dust-prevention device for a vacuum cleaner, in order to solve the problem that the existing dust-prevention structure mentioned in the background art may get stuck when the vacuum cleaner sucks in large debris, resulting in the dust-prevention structure always being in a half-open state, causing the structure to fail. Furthermore, in order to restore the structure, the vacuum cleaner needs to be disassembled, which is cumbersome and affects the vacuum cleaner's suction efficiency.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a dust collection box and a fan mounted on the dust collection box;
[0006] The bottom of the fan is provided with a handle, the dust collection box is provided with a connecting sleeve, the connecting sleeve is provided with an installation sleeve, the installation sleeve is provided with a suction pipe, and the suction pipe is provided with a suction head.
[0007] A connecting tube is provided between the connecting sleeve and the mounting sleeve. A collar is provided on the outside of the connecting tube. A pair of actuating plates are provided on the collar. A slider is provided on each side of the inner wall of the collar. A sliding rod is provided on the slider. A spring is provided on the outside of the sliding rod. A sliding ring is provided at the other end of the sliding rod. An arc-shaped plate is provided on the sliding ring. A sliding groove is provided on each side of the connecting tube. An inner protrusion is provided on each side of the inner wall of the connecting tube. An insertion hole is provided on the inner protrusion.
[0008] Preferably, the connecting sleeve is fixedly connected to the dust collection box, the connecting tube is integrally formed with the dust collection box, and the inner protrusion is integrally formed with the connecting tube.
[0009] Preferably, the actuating plate and the collar are integrally formed, the slider and the collar are integrally formed, and the collar can slide inside the groove through the slider.
[0010] Preferably, the slide rod is welded to the slider, the slide rod is inserted into the insertion hole on the inner protrusion, the slide rod is welded to the sliding ring, and the slide rod can push the sliding ring to move.
[0011] Preferably, the spring is sleeved with the slide rod, the movement of the collar can compress the spring, the arc plate is welded to the sliding ring, and the sliding ring can push the arc plate to move.
[0012] Preferably, the collar is sleeved with the connecting pipe, the connecting pipe is sleeved with the sliding ring and the arc plate, and the slider can slide on the slide groove.
[0013] Preferably, a blocking ring is provided inside the connecting sleeve, the blocking ring is integrally formed with the connecting sleeve, an anti-tipping pad is provided on the blocking ring, one end of the anti-tipping pad is fixedly connected to the blocking ring, and the anti-tipping pad is made of rubber material.
[0014] Compared with the prior art, this utility model provides a dust-prevention device for a vacuum cleaner, which has the following beneficial effects:
[0015] 1. Through the design of an arc-shaped plate, connecting tube, collar, actuating plate, slide bar, spring, sliding ring, insertion hole, arc-shaped plate, slider, and slide groove, this anti-tipping pad cleaning mechanism solves the problem of traditional vacuum cleaners where the anti-tipping pad cannot close due to debris jamming. When large debris jams the anti-tipping pad, the user only needs to pull the actuating plate to the right, and the slide bar will push the arc-shaped plate to push the jammed debris into the dust collection box. The entire process does not require disassembling any parts, which not only maintains the integrity of the equipment but also significantly improves cleaning efficiency. This intuitive and convenient operation method greatly reduces the difficulty of maintenance and allows the vacuum cleaner to quickly return to normal working condition.
[0016] 2. After cleaning is complete, when the control panel is released, the built-in spring will push each component back to its original position, and the anti-tipping pad will immediately return to its closed state, ensuring that the anti-tipping function of the anti-tipping pad is immediately reactivated. This self-resetting mechanism not only maintains the sealing performance of the device, but also eliminates the trouble of manual adjustment, allowing the vacuum cleaner to maintain its optimal working condition, greatly extending the service life of the equipment and reducing the difficulty of operating the equipment. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the installation structure of the collar and connecting pipe of this utility model.
[0019] Figure 3 This is a schematic diagram of the disassembled structure of the collar and connecting tube of this utility model.
[0020] Figure 4 This is a schematic diagram of the internal structure of the connecting sleeve and connecting tube of this utility model.
[0021] Figure 5 This is a schematic diagram showing the disassembled structure of the connecting sleeve and connecting tube of this utility model.
[0022] In the diagram: 1. Vacuum head; 2. Vacuum hose; 3. Dust collection box; 4. Fan; 5. Handle; 6. Connecting sleeve; 7. Mounting sleeve; 8. Collar; 9. Actuating plate; 10. Connecting tube; 11. Curved plate; 12. Slide bar; 13. Spring; 14. Slide groove; 15. Slider; 16. Sliding ring; 17. Inner protrusion; 18. Blocking ring; 19. Insertion hole; 20. Anti-tipping pad. Detailed Implementation
[0023] 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.
[0024] This utility model provides, for example Figure 1-5 A dust-prevention device for a vacuum cleaner is shown, including a dust collection box 3 and a fan 4 disposed on the dust collection box 3;
[0025] The bottom of the fan 4 is provided with a handle 5, the dust collection box 3 is provided with a connecting sleeve 6, the connecting sleeve 6 is provided with an installation sleeve 7, the installation sleeve 7 is provided with a suction pipe 2, and the suction pipe 2 is provided with a suction head 1.
[0026] A connecting tube 10 is provided between the connecting sleeve 6 and the mounting sleeve 7. A collar 8 is provided on the outside of the connecting tube 10. A pair of actuating plates 9 are provided on the collar 8. A slider 15 is provided on both sides of the inner wall of the collar 8. A sliding rod 12 is provided on the slider 15. A spring 13 is provided on the outside of the sliding rod 12. A sliding ring 16 is provided at the other end of the sliding rod 12. An arc plate 11 is provided on the sliding ring 16. A sliding groove 14 is provided on both sides of the connecting tube 10. An inner protrusion 17 is provided on both sides of the inner wall of the connecting tube 10. An insertion hole 19 is provided on the inner protrusion 17.
[0027] In this embodiment, the dust-prevention device of the vacuum cleaner is a structure designed to prevent dust from spilling back into the air when cleaning the dust collection bin or dust bag. It is mainly achieved by the anti-tipping pad 20. When the fan 4 is blowing air, dust and air can enter the dust collection box 3 through the suction head 1, suction pipe 2 and connecting sleeve 6. The dust collection box 3 can collect dust. When the anti-tipping pad 20 is affected by the fan blowing air, it will temporarily open, thus allowing dust to pass through the connecting sleeve 6. When the fan 4 is turned off, the anti-tipping pad 20 will recover due to the properties of its rubber material and close the internal channel of the connecting sleeve 6 again. When the user pours out the collected dust, without this device, the dust may be scattered again due to the influence of airflow or gravity, causing secondary pollution. This device usually uses the anti-tipping pad 20 to prevent the dust from flowing back, ensuring that the dust can be collected and disposed of when poured out, instead of flying around.
[0028] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the connecting sleeve 6 is fixedly connected to the dust collection box 3, the connecting tube 10 is integrally formed with the dust collection box 3, the inner protrusion 17 is integrally formed with the connecting tube 10, the actuating plate 9 is integrally formed with the collar 8, the slider 15 is integrally formed with the collar 8, and the collar 8 can slide inside the slide groove 14 through the slider 15. The slide rod 12 is welded to the slider 15, the slide rod 12 is inserted into the insertion hole 19 on the inner protrusion 17, the slide rod 12 is welded to the sliding ring 16, and the slide rod 12 can push the sliding ring 16 to move. The spring 13 is sleeved with the slide rod 12. The movement of the collar 8 can compress the spring 13. The arc plate 11 is welded to the sliding ring 16. The sliding ring 16 can push the arc plate 11 to move. The collar 8 is sleeved with the connecting pipe 10. The connecting pipe 10 is sleeved with the sliding ring 16 and the arc plate 11. The slider 15 can slide on the slide groove 14. The connecting sleeve 6 is provided with a blocking ring 18. The blocking ring 18 is integrally formed with the connecting sleeve 6. The blocking ring 18 is provided with an anti-tipping pad 20. One end of the anti-tipping pad 20 is fixedly connected to the blocking ring 18. The anti-tipping pad 20 is made of rubber material.
[0029] Preferably, the structure comprises an arc-shaped plate 11, a connecting pipe 10, a collar 8, a lever 9, a slide bar 12, a spring 13, a sliding ring 16, a socket 19, an arc-shaped plate 11, a slider 15, and a groove 14. When the anti-tipping pad 20 is jammed by large debris, the lever 9 can be pulled to the right. The lever 9 can further drive the collar 8 to slide on the connecting pipe 10. At the same time, the collar 8 can slide on the groove 14 on the connecting pipe 10 through the sliders 15 on both sides. The cooperation between the sliders 15 and the groove 14 ensures that the collar 8... It will not rotate on the connecting pipe 10, ensuring the one-way sliding of the collar 8. When the collar 8 slides to the right, the slider 15 will compress the spring 13 on the slide rod 12. Through the connection between the slide rod 12 and the insertion hole 19, the sliding ring 16 inside the connecting pipe 10 can be pushed to the right. Through the sliding ring 16 sliding to the right, the arc plate 11 can be pushed to move. After the arc plate 11 contacts the anti-tipping pad 20, it can push the stuck impurities or garbage into the dust collection box 3, so that the anti-tipping pad 20 can close again, ensuring that the anti-tipping structure can work again.
[0030] Preferably, after the anti-tipping structure is cleaned, the toggle plate 9 is released, the compressed spring 13 will return to its original position and push the slider 15 to the left, thereby causing the collar 8 to return to its original position. When the slider 12 moves to the left, it will cause the sliding ring 16 and the arc plate 11 inside the connecting tube 10 to move to the left and return to their original positions, so that the anti-tipping pad 20 can be closed again. This structure allows the garbage stuck in the anti-tipping pad 20 to be cleaned without disassembling the vacuum cleaner, improving the convenience of using the vacuum cleaner and the cleaning efficiency of the vacuum cleaner.
[0031] 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 dust-prevention device for a vacuum cleaner, comprising a dust collection box (3) and a fan (4) disposed on the dust collection box (3); The bottom of the fan (4) is provided with a handle (5), the dust collection box (3) is provided with a connecting sleeve (6), the connecting sleeve (6) is provided with an installation sleeve (7), the installation sleeve (7) is provided with a suction pipe (2), and the suction pipe (2) is provided with a suction head (1). Its features are: A connecting tube (10) is provided between the connecting sleeve (6) and the mounting sleeve (7). A collar (8) is provided on the outside of the connecting tube (10). A pair of actuating plates (9) are provided on the collar (8). A slider (15) is provided on both sides of the inner wall of the collar (8). A sliding rod (12) is provided on the slider (15). A spring (13) is provided on the outside of the sliding rod (12). A sliding ring (16) is provided at the other end of the sliding rod (12). An arc plate (11) is provided on the sliding ring (16). A sliding groove (14) is provided on both sides of the connecting tube (10). An inner protrusion (17) is provided on both sides of the inner wall of the connecting tube (10). An insertion hole (19) is provided on the inner protrusion (17).
2. The dust-prevention device for a vacuum cleaner according to claim 1, characterized in that: The connecting sleeve (6) is fixedly connected to the dust collection box (3), the connecting pipe (10) is integrally formed with the dust collection box (3), and the inner protrusion (17) is integrally formed with the connecting pipe (10).
3. The dust-prevention device for a vacuum cleaner according to claim 2, characterized in that: The actuating plate (9) and the collar (8) are integrally formed, the slider (15) and the collar (8) are integrally formed, and the collar (8) can slide inside the groove (14) through the slider (15).
4. The dust-prevention device for a vacuum cleaner according to claim 3, characterized in that: The slide rod (12) is welded to the slider (15), the slide rod (12) is inserted into the insertion hole (19) on the inner protrusion (17), the slide rod (12) is welded to the sliding ring (16), and the slide rod (12) can push the sliding ring (16) to move.
5. The dust-prevention device for a vacuum cleaner according to claim 4, characterized in that: The spring (13) is sleeved with the slide rod (12), and the movement of the collar (8) can compress the spring (13). The arc plate (11) is welded to the sliding ring (16), and the sliding ring (16) can push the arc plate (11) to move.
6. The dust-prevention device for a vacuum cleaner according to claim 5, characterized in that: The collar (8) is sleeved with the connecting pipe (10), the connecting pipe (10) is sleeved with the sliding ring (16) and the arc plate (11), and the slider (15) can slide on the groove (14).
7. The dust-prevention device for a vacuum cleaner according to claim 1, characterized in that: The connecting sleeve (6) is provided with a blocking ring (18) inside. The blocking ring (18) is integrally formed with the connecting sleeve (6). An anti-tipping pad (20) is provided on the blocking ring (18). One end of the anti-tipping pad (20) is fixedly connected to the blocking ring (18). The anti-tipping pad (20) is made of rubber material.