Vacuum cleaner

Abstract

The utility model relates to a vacuum cleaner, including base, suction motor, waterproof valve and dust cup. Among them, the base is equipped with the receiving bin, the base includes the bottom wall of the bin bottom of the receiving bin, is provided with the first fluid butt joint part of a plurality of air holes on the bottom wall, the suction motor is located in the base and is connected with the air hole intercommunication, the waterproof valve is rotatably connected in the bottom wall, can switch between the first position of covering the air hole and the second position of exposing the air hole, the dust cup is detachably installed in the receiving bin, and the inside is equipped with the gas -solid separation chamber, the cup bottom is equipped with the second fluid butt joint part of the air outlet hole and a trigger part. When the dust cup is installed in place, its trigger part pushes the waterproof valve to shift from the first position to the second position, makes the air hole and the air outlet hole butt joint intercommunication. The structure realizes the waterproof function that the air passage is automatically connected when the dust cup is installed, is automatically closed when taking down, effectively prevents liquid to enter the motor through the air hole.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaning equipment technology, and in particular to a vacuum cleaner. Background Technology

[0002] Vacuum cleaners, as a common household cleaning appliance, are widely used in daily cleaning of homes and various offices and commercial spaces. With the increasing number of pet owners, vacuum cleaners specifically designed for cleaning pet hair have emerged. These vacuum cleaners for removing pet hair typically require powerful suction and special brush heads or filtration systems to effectively remove and hold fine, easily tangled pet hair.

[0003] In known vacuum cleaner designs, particularly portable, handheld, and some upright vacuum cleaners, a removable dust collection container (often called a "dust cup") is commonly used to collect dust and debris. Users need to periodically remove the dust cup to clean the accumulated hair and dust, maintaining the vacuum cleaner's filtration efficiency. However, this design presents a significant safety hazard: when the dust cup is removed for cleaning or spray testing, the interface on the vacuum cleaner main unit that connects to the dust cup (i.e., the vent leading to the suction motor) is directly exposed. During operation in humid environments or safety spray tests, liquid can easily enter the main unit through this vent, potentially causing short circuits, motor damage, or even electric shock, severely impacting the product's safety and reliability, and posing potential risks and inconvenience to users. Utility Model Content

[0004] In order to solve the problems mentioned above, the purpose of this utility model is to provide a vacuum cleaner that can effectively prevent liquid from entering the suction motor through the exposed vent.

[0005] Therefore, this application provides a vacuum cleaner, comprising:

[0006] A base that can be supported on a plane and has a receiving chamber thereon, the base including a bottom wall defining the bottom of the receiving chamber, the bottom wall having a first fluid docking part having a plurality of vent holes;

[0007] A suction motor is arranged inside the base, and the plurality of ventilation holes are in circulation with the suction motor.

[0008] A waterproof valve, rotatably connected to the bottom wall between a first position covering the plurality of vents from above and a second position away from the plurality of vents; and

[0009] The dust cup has an internal gas-solid separation chamber and is detachably installed in the receiving chamber. The dust cup has a bottom opposite to the bottom wall, and the bottom of the cup is provided with a second fluid docking part. The second fluid docking part has a plurality of air outlets that are in fluid communication with the gas-solid separation chamber. The bottom of the cup is provided with a trigger part. When the dust cup is installed in the receiving chamber, the trigger part triggers the waterproof valve to rotate from the first position to the second position, so that the plurality of air vents and the plurality of air outlets maintain airflow communication.

[0010] In some embodiments, the waterproof valve is rotatably connected to the bottom wall about a rotation axis, and the waterproof valve includes a covering portion and a rotational force-applying portion located on opposite sides of the rotation axis; when the dust cup is installed in the receiving chamber, the trigger portion contacts the rotational force-applying portion and applies a force to the rotational force-applying portion to cause the waterproof valve to rotate from the first position to the second position.

[0011] In some embodiments, the waterproof valve is cap-shaped; in the first position of the waterproof valve, the waterproof valve covers the first fluid connection portion from the upper side.

[0012] In some embodiments, in the first fluid docking portion and the second fluid docking portion, one docking portion is a concave structure and the other docking portion is a convex structure.

[0013] In some embodiments, the first fluid docking portion protrudes upward relative to the bottom wall.

[0014] In some embodiments, the second fluid docking portion is a concave structure and has a mesh wall defining the plurality of air outlets.

[0015] In some embodiments, the second fluid docking portion is provided with a filter HEPA filter; in terms of the airflow direction leaving the gas-solid separation chamber, the filter HEPA filter is located downstream of the plurality of air outlets.

[0016] In some embodiments, the waterproof valve includes a counterweight.

[0017] In some embodiments, an elastic reset member is provided between the waterproof valve and the bottom wall to offset the waterproof valve toward the first position.

[0018] In some embodiments, the base includes a sidewall defining the side edge of the receiving compartment, the sidewall having a drain outlet that is flush with or lower than the bottom wall; when the dust cup is installed in the receiving compartment, the fluid communication path between the drain outlet and the plurality of vent holes is interrupted by the dust cup.

[0019] Compared with existing technologies, the beneficial effects of this application are as follows: By designing an automatically opening and closing waterproof valve structure, the function of automatically sealing the base vent when the dust cup is disassembled and automatically opening the air duct when the dust cup is installed is achieved. This design can fundamentally prevent liquids or moisture from entering the main unit during spray experiments or in humid environments, effectively avoiding safety hazards such as motor short circuits and circuit corrosion, and significantly improving the safety and reliability of the product. At the same time, during the dust cup disassembly gap, the waterproof valve can block dust, hair, and other foreign objects from entering the air duct, preventing blockage or damage to the motor, thereby extending the service life of the entire machine. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a vacuum cleaner according to the present invention;

[0021] Figure 2 for Figure 1 An exploded view of the vacuum cleaner in the image;

[0022] Figure 3 This is an exploded view of a base according to the present invention;

[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of the structure of the waterproof valve shown in this utility model;

[0025] Figure 6 This is an exploded view of a dust cup according to the present invention;

[0026] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0027] Figure 8 This is a schematic diagram of a waterproof valve located in the second position according to the present invention;

[0028] Figure 9 for Figure 8 Enlarged view of point C in the middle;

[0029] Figure 10 This is a schematic diagram of a waterproof valve in the first position according to the present invention.

[0030] Among them, 100 is a vacuum cleaner; 1 is a base; 11 is a receiving chamber; 12 is a bottom wall; 13 is a side wall; 131 is a drain outlet; 132 is an air escape channel; 133 is an exhaust port; 14 is a first fluid docking part; 141 is a vent hole; 15 is a top surface; 16 is an operating interface; 101 is an inner shell; 102 is an outer shell; 2 is a suction motor; 21 is an air inlet; 22 is an exhaust outlet; 3 is a waterproof valve; 31 is a rotating shaft; 32 is a rotation force application mechanism. 33. Covering part; 4. Dust cup; 41. Gas-solid separation chamber; 42. Cup bottom; 421. Lock; 43. Second fluid docking part; 431. Mesh wall; 432. Air outlet; 44. HEPA filter; 45. Cup top wall; 451. Recessed handle; 46. Cup side wall; 461. Dust-laden airflow inlet; 47. Contact surface; 48. First sealing ring; 49. Second sealing ring; 50. Triggering part; 800. Airflow; 900. Liquid. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] like Figures 1 to 4 As shown, this embodiment provides a vacuum cleaner 100, which generally includes a base 1, a suction motor 2, a waterproof valve 3, and a dust cup 4.

[0034] The base 1 can be supported on a flat surface, such as the ground or a tabletop. The interior of the base 1 has a receiving chamber 11 for accommodating the dust cup 4. The receiving chamber 11 is defined by a bottom wall 12 and a side wall 13 extending upward from the edge of the bottom wall 12. On the bottom wall 12, a first fluid docking portion 14 protrudes upward. The first fluid docking portion 14 has several vent holes 141, configured as a channel for airflow into the suction motor 2. An air inlet 133 is provided on the side wall 13. This air inlet 133 can be fluidly connected to the suction hose of the vacuum cleaner 100 to introduce dust-laden airflow into the docked dust cup 4. An operating interface 16, such as a power switch and a power indicator light, can be provided on the top surface 15 of the base 1 for user operation.

[0035] like Figure 3 As shown, the base 1 consists of an inner shell 101 and an outer shell 102 arranged inside and outside, with a cavity 1101 formed between the inner shell 101 and the outer shell 102. The bottom wall 12, side wall 13, receiving chamber 11, and first fluid docking portion 14 are all defined by the inner shell 101. An air escape channel 132 is also formed between the inner and outer shells of the base 1 to ensure that the motor operating temperature remains within a safe range.

[0036] A drain outlet 131 is also provided on the side wall 13 of the base 1. The drain outlet 131 is level with or slightly lower than the bottom wall 12, forming a low point. In this way, even if a large amount of liquid is accidentally spilled into the receiving chamber 110, the liquid can be collected on the bottom wall 12 after flowing through the waterproof valve 3 and discharged from the base 1 through the drain outlet 131, further enhancing the waterproof capability and safety of the equipment.

[0037] like Figure 4 As shown, the suction motor 2 is arranged in the cavity 1101 between the inner shell 101 and the outer shell 102, and is located below the receiving chamber 11. The suction motor 2 includes an air inlet end 21 and an exhaust end 22. The exhaust end 22 is defined by several holes on the side wall of the suction motor 2. The air inlet end 21 of the suction motor 2 is in fluid communication with several vent holes 142 of the first fluid docking part 14, so that clean air filtered by the dust cup 4 can be drawn in by the suction motor 2 and finally discharged through the exhaust end 22.

[0038] The exhaust end 22 of the suction motor 2 is connected to one end of the air escape channel 132, and the other end of the air escape channel 132 is open to the outside atmosphere. This design cleverly integrates the exhaust path of the suction motor into the base structure, improving the overall integrity of the product.

[0039] like Figure 5 As shown, the waterproof valve 3 is rotatably connected to the bottom wall 12 via a rotating shaft 31 about a rotating axis x. The waterproof valve 3 includes a covering part 33 and a rotational force-applying part 32 located on opposite sides of the rotating shaft 31.

[0040] The waterproof valve 3 is rotatably connected to the bottom wall 12 between a first position covering the vent holes 141 from above and a second position away from the vent holes 141. The waterproof valve 3 is cap-shaped, and its diameter is slightly larger than the diameter of the first fluid connection portion 14. In the first position, the waterproof valve 3 covers the first fluid connection portion 14 from the upper side to prevent liquid from entering.

[0041] In this embodiment, in order to enable the waterproof valve 3 to automatically reset to the closed state without external force, the waterproof valve 3 contains a counterweight. In another embodiment, an elastic reset member is provided between the waterproof valve 3 and the bottom wall 12 to offset the waterproof valve 3 toward the first position.

[0042] The dust cup 4 is a cylindrical component with a bottom 42, a side wall 46, and a top wall 45. The dust cup 4 has a gas-solid separation chamber 41 inside and can be detachably installed in the receiving chamber 11 from top to bottom. The dust cup 4 has a bottom 42 opposite to the bottom wall 12. The top wall 45 is higher than the top surface 15 of the base 1. The top wall 45 is also provided with a recessed handle 451 for easy gripping and placement by the user. The side wall 46 is provided with a dust-laden airflow inlet 461 adapted to the air inlet interface 133.

[0043] A second fluid docking part 43 is provided at the bottom 42 of the cup. The outline shape of the second fluid docking part 43 is adapted to the outline shape of the first fluid docking part 14. The second fluid docking part 43 has an upwardly recessed structure and a mesh wall 431 that defines a plurality of air outlets 432. The plurality of air outlets 432 are in fluid communication with the gas-solid separation chamber 41.

[0044] When the dust cup 4 is installed in the receiving chamber 11, the air inlet 133 is fluidly connected to the dust-laden airflow inlet 461; the first fluid connection part 14 and the second fluid connection part 43 of the cup bottom 42 are fluidly connected.

[0045] A HEPA filter 44 can be further installed inside the second fluid docking section 43 for final high-efficiency filtration. In terms of the airflow direction leaving the gas-solid separation chamber 41, the HEPA filter 44 is located downstream of the air outlet 432.

[0046] like Figure 6 and Figure 7 As shown, a first sealing strip 48 is installed at the bottom of the dust cup 4, and a second sealing strip 49 is installed at the part of the second fluid docking part that connects to the bottom wall 12. The side of the second fluid docking part near the rotating force application part 32 of the waterproof valve 3 is a trigger part 50. The trigger part 50 is an "L"-shaped groove. The waterproof valve 3 contacts the contact surface 47 of the trigger part 50. The trigger part 50 contacts the rotating force application part 32 and applies a force to the rotating force application part 32 to cause the waterproof valve 3 to rotate from the first position to the second position, so as to maintain airflow communication.

[0047] In this example, the bottom 42 of the dust cup 4 can be configured to be openable, and is releasably connected to the lower part of the side wall 46 of the dust cup 4 via a releasable latch 421. This design allows users to clean the collected pet hair and dust directly from the bottom of the cup without having to put their hands inside, making it more hygienic and convenient.

[0048] like Figure 8 and Figure 9 As shown, when the dust cup 4 is installed in the receiving chamber 11, the second fluid docking part 43 (concave structure) of the dust cup 4 is fitted downwards onto the first fluid docking part 14 (convex structure) of the base 1 and the outside of the waterproof valve 3. At this time, the waterproof valve 3 is in the second position, and the waterproof valve 3 is in contact with the abutment surface 47 of the trigger part 50. The trigger part 50 contacts the rotating force application part 32 and applies a force to the rotating force application part 32 to cause the waterproof valve 3 to rotate from the first position to the second position. The air inlet 133 is fluidly connected to the dust-laden airflow inlet 461; the first fluid docking part 14 and the second fluid docking part 43 of the cup bottom 42 are fluidly connected. The airflow 800 enters the dust cup 4 from the air inlet 133, enters the suction motor 2 through the air outlet 432 on the second fluid docking part 43 and the air vent 141 on the first fluid docking part 14, and finally exits through the exhaust end 22.

[0049] like Figure 10 As shown, when a spray test is conducted or when the user removes the dust cup 4 from the receiving compartment 11 of the base 1 for cleaning, the waterproof valve automatically covers the first fluid docking part 14 via its built-in counterweight or elastic reset button. Its cap-like structure effectively covers the vent hole 142 below. At this time, even if water droplets or other liquids 900 fall from above the waterproof valve 30, the liquid 900 will flow along the waterproof valve 3 to the surrounding bottom wall 12, and will not drip or flow directly into the vent hole 141, thus fundamentally avoiding the risk of short circuit and burnout caused by liquid directly entering the suction motor 2.

[0050] In summary, this invention cleverly solves the safety hazard of water ingress caused by dust cup disassembly in existing technologies by setting an independent waterproof valve above the exposed vent. This solution is simple in structure, low in cost, and easy to install and disassemble. Without affecting normal airflow and suction function, it greatly improves the safety and reliability of the product, making it particularly suitable for use scenarios such as cleaning pet hair, which often require frequent dust cup cleaning.

[0051] Although the present invention has been described in detail through the above embodiments, those skilled in the art will understand that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum cleaner, characterized in that, include: A base that can be supported on a plane and has a receiving chamber thereon, the base including a bottom wall defining the bottom of the receiving chamber, the bottom wall having a first fluid docking part having a plurality of vent holes; A suction motor is arranged inside the base, and the plurality of ventilation holes are in circulation with the suction motor. A waterproof valve is rotatably connected to the bottom wall between a first position covering the plurality of vents from above and a second position away from the plurality of vents. as well as The dust cup has an internal gas-solid separation chamber and is detachably installed in the receiving chamber. The dust cup has a bottom opposite to the bottom wall, and the bottom of the cup is provided with a second fluid docking part. The second fluid docking part has a plurality of air outlets that are in fluid communication with the gas-solid separation chamber. The bottom of the cup is provided with a trigger part. When the dust cup is installed in the receiving chamber, the trigger part triggers the waterproof valve to rotate from the first position to the second position, so that the plurality of air vents and the plurality of air outlets maintain airflow communication.

2. The vacuum cleaner according to claim 1, characterized in that, The waterproof valve is rotatably connected to the bottom wall about a rotation axis. The waterproof valve includes a covering part and a rotation force-applying part located on opposite sides of the rotation axis. When the dust cup is installed in the receiving chamber, the trigger part contacts the rotation force-applying part and applies a force to the rotation force-applying part to cause the waterproof valve to rotate from the first position to the second position.

3. The vacuum cleaner according to claim 2, characterized in that, The waterproof valve is cap-shaped; in the first position of the waterproof valve, the waterproof valve covers the first fluid connection part from the upper side.

4. The vacuum cleaner according to claim 1, characterized in that, In the first fluid docking portion and the second fluid docking portion, one docking portion has a concave structure and the other docking portion has a convex structure.

5. The vacuum cleaner according to claim 2, characterized in that, The first fluid docking portion protrudes upward relative to the bottom wall.

6. The vacuum cleaner according to claim 5, characterized in that, The second fluid docking portion has a concave structure and a mesh wall that defines the plurality of air outlets.

7. The vacuum cleaner according to claim 6, characterized in that, The second fluid docking section is provided with a filter HEPA filter; in terms of the airflow direction leaving the gas-solid separation chamber, the filter HEPA filter is located downstream of the plurality of air outlets.

8. The vacuum cleaner according to claim 1, characterized in that, The waterproof valve contains a counterweight.

9. The vacuum cleaner according to claim 1, characterized in that, An elastic reset member is provided between the waterproof valve and the bottom wall to offset the waterproof valve toward the first position.

10. The vacuum cleaner according to claim 1, characterized in that, The base includes a sidewall defining the side edge of the receiving chamber, and a drain outlet is provided on the sidewall. The drain outlet is flush with or lower than the bottom wall. When the dust cup is installed in the receiving chamber, the fluid communication path between the drain outlet and the plurality of vent holes is blocked by the dust cup.

Images