Air duct conversion structure applied to dust collector and dust collector

Abstract

The air duct conversion structure applied to the dust collector comprises a shell, an air cavity is formed in the shell, an air outlet, a first air inlet and a second air inlet which are communicated with the air cavity are formed in the shell, a first air baffle is arranged at the first air inlet, a second air baffle is arranged at the second air inlet, and a driving mechanism is arranged in the air cavity. The driving mechanism is configured to drive the first wind shield and the second wind shield to be synchronously switched between the opening state and the closing state, and the switching states are oppositely arranged. According to the air duct switching structure applied to the dust collector, in the dust collection process, air duct switching can be achieved so that the dust collection air duct can be closed and the dust collection air duct can be opened, and the dust collection function of a dust collection station can be completed through a vacuum motor in the dust collector; after dust collection is completed, the dust collection air duct can be automatically opened, and the dust collection air duct can be automatically closed, so that dust collection can be conveniently carried out next time; the technical scheme is simple and ingenious in structure, can save a vacuum motor in a dust collection station, saves cost, and is suitable for popularization and application.

Description

Technical Field

[0001] The utility model relates to the field of cleaning equipment, in particular to an air duct conversion structure used in a vacuum cleaner and the vacuum cleaner. Background Art

[0002] Handheld vacuum cleaners are increasingly entering thousands of households due to their small size, portability, and freedom from power cords. Handheld vacuum cleaners generally use the negative pressure generated by the fan to absorb garbage and other impurities into the dust bucket for collection. The dust cup has a small volume, and after use, the dust bucket is opened to dump the garbage. However, when dumping the dust, the dust will scatter, causing secondary pollution. In order to solve the above problem, base stations with dust collection functions have appeared on the market, which can collect dust in the dust cup to avoid dust. For example, Chinese patent document No. CN218651617U discloses a vacuum cleaner base station dust collection system, including a base station and a vacuum cleaner, the base station includes a base, a support rod and a support component, the support component is provided with a dust collection chamber, the base is provided with a dust bag and a negative pressure component, the vacuum cleaner includes a hand-held rod and a dust cup, the dust cup has a dust cup body and a dust cup bottom cover, the dust cup body is provided with a release button for controlling the dust cup bottom cover to rotate to open or close, the vacuum cleaner is placed on the base station, the trigger part on the base station triggers the bottom cover release button, the dust cup bottom cover opens, the negative pressure component suctions to generate negative pressure inside the chamber, the dust inside the dust cup body automatically falls and is collected in the base station, so as to achieve the purpose of self-dust collection. This conventional cleaning device has two suction devices in the whole cleaning device. One suction device is arranged in the vacuum cleaner, and is used for generating negative pressure in the dust cup during vacuuming operation to achieve the purpose of dust collection. The other suction device is used for generating negative pressure in the dust collecting chamber of the base station during dust collection to achieve the purpose of collecting dust in the dust cup. On the one hand, the cost is relatively high. On the other hand, the airflow passes through the longer suction channel at the front end during suction, and the air volume loss is relatively large, resulting in a small integrated effective air volume and poor dust collection effect. On the other hand, the weight of the whole cleaning device is relatively large, which is not conducive to customers' transportation and movement.

[0003] Therefore, in view of the shortcomings of the prior art, it is necessary to design an air duct conversion structure and a vacuum cleaner for use in a vacuum cleaner to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the utility model aims to provide an air duct conversion structure used in a vacuum cleaner and a vacuum cleaner.

[0005] To achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is: an air duct conversion structure used in a vacuum cleaner, comprising a shell, a wind cavity is provided in the shell, an air outlet connected to the wind cavity, a first air inlet and a second air inlet are provided on the shell, a first wind shield is provided at the first air inlet, a second wind shield is provided at the second air inlet, a driving mechanism is provided in the wind cavity, and the driving mechanism is configured to drive the first wind shield and the second wind shield to synchronously switch between an open state and a closed state, and the switching states are oppositely arranged.

[0006] The preferred technical solution is: the driving mechanism is composed of a transmission gear, a rack and a driving member, the transmission gear is rotated in the shell and is located on one side of the first air inlet, and the first wind shield is fixedly connected to the rotating shaft of the transmission gear; the rack is reciprocatingly slidably arranged on one side of the second air inlet and is meshed with the transmission gear, the second wind shield and the rack are fixedly connected and arranged corresponding to the second air inlet; the driving member is arranged in the shell and is used to drive the transmission gear to rotate.

[0007] The preferred technical solution is: the driving member adopts a push button and a fan-shaped gear, the fan-shaped gear is rotated in the shell and meshed with the transmission gear, the push button is located above the fan-shaped gear, a driving block is provided on the bottom side of the push button, and a guide groove is provided on the top side of the fan-shaped gear, and the driving block is slidably disposed in the guide groove.

[0008] The preferred technical solution is: a first return spring is further provided in the shell, the first return spring is arranged along the pushing direction of the push button, one end of the first return spring abuts against the shell, and the other end of the first return spring abuts against the inner end of the push button.

[0009] The preferred technical solution is: the driving member adopts a motor and a driving gear, the driving gear is rotated in the housing and meshed with the transmission gear, and the motor is arranged in the housing and is used to drive the driving gear to rotate.

[0010] The preferred technical solution is: a second return spring is further provided in the shell, the second return spring is arranged along the movement direction of the rack, one end of the second return spring is against the shell, and the other end of the second return spring is against the end of the rack.

[0011] A vacuum cleaner comprises the above-mentioned air duct conversion structure.

[0012] Due to the application of the above technical solution, the utility model has the following beneficial effects:

[0013] The utility model proposes an air duct conversion structure for use in a vacuum cleaner and a vacuum cleaner. During the dust collection process, the air duct switching can be realized to close the dust collection air duct and open the dust collection air duct, that is, the dust collection function of the dust collection station is completed by using the vacuum motor in the vacuum cleaner; after the dust collection is completed, the dust collection air duct will automatically open, while the dust collection air duct will automatically close, so as to facilitate the next vacuuming use; the technical solution has a simple and ingenious structure, can eliminate the vacuum motor in the dust collection station, saves costs, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic structural diagram of the air duct conversion structure and the vacuum motor in the vacuum cleaner in the assembled state.

[0015] Figure 2 The utility model is a schematic diagram of the internal structure of the air duct conversion structure in the dust collection state.

[0016] Figure 3 It is a schematic diagram of the internal structure of the air duct conversion structure involved in the utility model in the dust collecting state.

[0017] Figure 4 The utility model is a schematic diagram of the internal structure of the air duct conversion structure using another driving member. DETAILED DESCRIPTION

[0018] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0019] See also Figure 1-Figure 4 . It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0020] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Example:

[0022] like Figures 1 to 4 As shown, according to an overall technical concept of the utility model, an air duct conversion structure for use in a vacuum cleaner is provided, comprising a shell 1, a wind cavity is provided in the shell 1, an air outlet 11 connected to the air cavity, a first air inlet 12 and a second air inlet 13 are provided on the shell 1, a first wind shield 2 is provided at the first air inlet 12, a second wind shield 3 is provided at the second air inlet 13, a driving mechanism is provided in the wind cavity, the driving mechanism is configured to drive the first wind shield 2 and the second wind shield 3 to synchronously switch between an open state and a closed state, and the switching states are oppositely arranged.

[0023] Among them, the air outlet 11 is used to be sealed and connected to the air inlet end of the vacuum motor 100 in the vacuum cleaner, and the second air inlet 13 is connected to the dust cup and the head in the vacuum cleaner in sequence to form a dust suction duct; the first air inlet 12 is sealed and connected to the air outlet end of the external dust collecting station, and the air inlet end of the dust collecting station is sealed and connected to the dust cup to form a dust collecting duct. When the vacuum cleaner is in normal use, the driving mechanism controls the second windshield 3 to open and the first windshield 2 to close, that is, the dust suction duct is connected and the dust collecting duct is closed; when the vacuum cleaner needs to pour out the garbage in the dust cup, it is assembled on the dust collecting station, and then the driving mechanism controls the second windshield 3 to close and the first windshield 2 to open, that is, the dust suction channel is closed and the dust collecting duct is connected.

[0024] It should be noted that an air outlet corresponding to the second air inlet 13 is provided on the second wind shield 3. In the dust suction state, the air outlet is arranged corresponding to the second air inlet 13. In the dust collection state, the air outlet and the second air inlet 13 are staggered to achieve the closure of the second air inlet.

[0025] like Figures 1 to 3As shown, in an exemplary embodiment of the utility model, the driving mechanism is composed of a driving member, a transmission gear 4 and a rack 6. The transmission gear 4 is rotatably disposed in the shell 1 and is located on one side of the first air inlet 12. The first wind deflector 2 is fixedly connected to the rotating shaft of the transmission gear 4; the rack 6 is reciprocatingly slidably disposed on one side of the second air inlet 13 and is meshed with the transmission gear 4. The second wind deflector 3 and the rack 6 are fixedly connected and are arranged corresponding to the second air inlet 13; the driving member is disposed in the shell 1 and is used to drive the transmission gear 5 to rotate.

[0026] like Figures 1 to 3 As shown, in an exemplary embodiment of the utility model, the driving member adopts a push button 7 and a sector gear 5, the sector gear 5 is rotatably arranged in the housing 1 and meshed with the transmission gear 4, the push button 7 is located above the sector gear 5, the bottom side of the push button 7 is provided with a driving block, the top side of the sector gear 5 is provided with a guide groove, the driving block is slidably arranged in the guide groove, and this structure is used to realize the linkage between the push button 7 and the sector gear 5.

[0027] During operation, by squeezing the push button 7, the driving block slides in the guide groove, thereby controlling the rotation of the sector gear 5, which drives the transmission gear 4 to rotate, thereby driving the rack 6 to slide, and the second windshield plate 3 is fixedly arranged with the rack 6, thereby driving it to open or close the second air inlet 13. At the same time, the rotation of the transmission gear 4 can drive its rotating shaft to rotate, and the first windshield plate 2 is fixedly arranged with the rotating shaft, thereby driving it to open or close the first air inlet 12.

[0028] like Figures 1 to 3 As shown, in an exemplary embodiment of the utility model, a first return spring 8 is further provided in the shell 1, and the first return spring 8 is arranged along the pushing direction of the push button 7, one end of the first return spring 8 is against the shell 1, and the other end of the first return spring 8 is against the inner end of the push button 7; a second return spring 9 is further provided in the shell 1, and the second return spring 9 is arranged along the moving direction of the rack 6, one end of the second return spring 9 is against the shell 1, and the other end of the second return spring 9 is against the end of the rack 6; the above structure is used to realize the automatic reset function of the drive mechanism, reduce the user's control steps, and improve the user experience.

[0029] like Figure 4As shown, in another exemplary embodiment of the utility model, the driving member adopts a motor 10 and a driving gear 101, the driving gear 101 is rotated in the housing 1 and meshed with the transmission gear 4, and the motor 10 is arranged in the housing 1 and is used to drive the driving gear 101 to rotate. During operation, the motor 10 drives the driving gear 101 to rotate, thereby driving the transmission gear 4 to rotate, and the transmission gear 4 then drives the rack 6 meshed therewith to slide back and forth, and the second windshield plate 3 is fixedly arranged with the rack 6, thereby driving it to open or close the second air inlet 13. At the same time, the rotation of the transmission gear 4 can drive its rotating shaft to rotate, and the first windshield plate 2 is fixedly arranged with the rotating shaft, thereby driving it to open or close the first air inlet 12.

[0030] It should be noted that for a vacuum cleaner adopting a push button structure, a matching dust collecting station is provided with a push block structure for pushing the push button in, so that after the vacuum cleaner is docked with the dust collecting station, the vacuum mode is automatically switched to the dust collection mode.

[0031] Therefore, the utility model has the following advantages:

[0032] The utility model proposes an air duct conversion structure for use in a vacuum cleaner and a vacuum cleaner. During the dust collection process, the air duct switching can be realized to close the dust collection air duct and open the dust collection air duct, that is, the dust collection function of the dust collection station is completed by using the vacuum motor in the vacuum cleaner; after the dust collection is completed, the dust collection air duct will automatically open, while the dust collection air duct will automatically close, so as to facilitate the next vacuuming use; the technical solution has a simple and ingenious structure, can eliminate the vacuum motor in the dust collection station, saves costs, and is suitable for popularization and use.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An air duct conversion structure used in a vacuum cleaner, characterized in that: It includes a shell, a wind cavity is provided in the shell, an air outlet connected to the wind cavity, a first air inlet and a second air inlet are provided on the shell, a first wind shield is provided at the first air inlet, a second wind shield is provided at the second air inlet, a driving mechanism is provided in the wind cavity, and the driving mechanism is configured to drive the first wind shield and the second wind shield to synchronously switch between an open state and a closed state, and the switching states are oppositely arranged.

2. The air duct conversion structure used in a vacuum cleaner according to claim 1, characterized in that: The driving mechanism is composed of a transmission gear, a rack and a driving member. The transmission gear is rotated in the shell and located on one side of the first air inlet. The first wind shield is fixedly connected to the rotating shaft of the transmission gear; the rack is reciprocatingly slidably arranged on one side of the second air inlet and meshes with the transmission gear. The second wind shield is fixedly connected to the rack and corresponding to the second air inlet; the driving member is arranged in the shell and is used to drive the transmission gear to rotate.

3. The air duct conversion structure used in a vacuum cleaner according to claim 2, characterized in that: The driving member adopts a push button and a sector gear. The sector gear is rotated in the shell and meshed with the transmission gear. The push button is located above the sector gear. A driving block is provided on the bottom side of the push button. A guide groove is provided on the top side of the sector gear. The driving block is slidably arranged in the guide groove.

4. The air duct conversion structure used in a vacuum cleaner according to claim 3, characterized in that: A first return spring is also provided in the shell. The first return spring is arranged along the pushing direction of the push button. One end of the first return spring abuts against the shell, and the other end of the first return spring abuts against the inner end of the push button.

5. The air duct conversion structure used in a vacuum cleaner according to claim 2, characterized in that: The driving member adopts a motor and a driving gear. The driving gear is rotated in the housing and meshed with the transmission gear. The motor is arranged in the housing and is used to drive the driving gear to rotate.

6. The air duct conversion structure used in a vacuum cleaner according to claim 2, characterized in that: A second return spring is also provided in the housing. The second return spring is arranged along the moving direction of the rack. One end of the second return spring abuts against the housing, and the other end of the second return spring abuts against the end of the rack.

7. A vacuum cleaner, characterized in that: The vacuum cleaner has the air duct conversion structure as described in any one of claims 1-6.

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