The main unit of a handheld vacuum cleaner and the handheld vacuum cleaner

Abstract

This application discloses a main unit and a handheld vacuum cleaner. The main unit includes a dust collection box and a dust collection box interface communicating with the dust collection box. The dust collection box interface is used to connect the vacuum cleaner's suction rod. The main unit rotates relative to the suction rod on a plane parallel to the long axis of the suction rod, with the dust collection box interface as its rotation center. The main unit of this handheld vacuum cleaner can rotate to different positions of the suction rod, making it suitable for different usage environments.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, specifically to a main unit and handheld vacuum cleaner. Background Technology

[0002] A vacuum cleaner works by creating a vacuum inside, and the pressure difference draws dust into the vacuum, thus achieving cleaning. A handheld vacuum cleaner is operated by the user by hand.

[0003] Currently, some handheld vacuum cleaners have their main unit fixed at the top, high up, making the center of gravity high and requiring the user to support most of the weight, resulting in strenuous use and making it difficult to stand stably upright. Other handheld vacuum cleaners have the main unit fixed at the bottom, lower down, making the center of gravity lower. While this makes it easier for the user and allows for upright placement, the lower position of the main unit can hinder cleaning in small spaces. Summary of the Invention

[0004] This application provides a main unit for a handheld vacuum cleaner to solve the technical problem of inconvenience caused by the fact that the main unit of existing handheld vacuum cleaners can only be set in a single location.

[0005] To solve the above-mentioned technical problems, this application provides a main unit of a handheld vacuum cleaner, including: a dust collection box and a dust box interface communicating with the dust collection box. The dust box interface is used to connect the vacuum cleaner rod of the handheld vacuum cleaner. The main unit is rotatable relative to the vacuum cleaner rod on a plane parallel to the long axis of the vacuum cleaner rod, with the dust box interface as the rotation center.

[0006] According to one embodiment of this application, the host includes a host housing, the dust collection box is disposed inside the host housing, and the dust collection box interface is disposed on the host housing;

[0007] The dustbin interface is fixedly mounted on the main housing and rotatably connected to the suction rod; or, the dustbin interface is rotatably mounted on the main housing and fixedly connected to the suction rod.

[0008] According to one embodiment of this application, a first damping element is provided on the main unit housing. During the rotation of the main unit, the first damping element interacts with a second damping element on the vacuum cleaner rod to generate rotational resistance.

[0009] According to one embodiment of this application, the first damping element is a damping ring, and the surface of the damping ring facing the dust collection rod is provided with a plurality of damping grooves at intervals, the plurality of damping grooves surrounding the dust box interface; the second damping element is a damping pin, and the damping pin is embedded in the damping groove.

[0010] According to one embodiment of this application, the dustbin interface is rotatably connected to the vacuum cleaner rod, and the connection between the dustbin interface and the vacuum cleaner rod is cylindrical; or, the dustbin interface is rotatably disposed on the main housing, and the connection between the dustbin interface and the main housing is cylindrical.

[0011] According to one embodiment of this application, the main housing is cylindrical, and the major axis of the main housing is parallel to the cylindrical cross-section of the connection.

[0012] According to one embodiment of this application, the upper part of the main unit is defined as the location of the dust collection box, and the main unit includes the dust collection box, the fan and the battery arranged sequentially from the upper part to the lower part.

[0013] According to one embodiment of this application, an exhaust vent is formed at the lower part of the main housing, and the battery is arranged around the main housing, with a hollow channel communicating with the exhaust vent formed around it.

[0014] According to one embodiment of this application, the host is provided with an exhaust port, which is used to connect to the vacuum cleaner component of the handheld vacuum cleaner.

[0015] According to one embodiment of this application, the upper part of the main unit is defined by the location of the dust collection box, and a sub-fixing member is formed on the lower part of the main unit; the main unit is fixed to different positions of the vacuum cleaner rod through the dust box interface and the sub-fixing member.

[0016] According to one embodiment of this application, the host is provided with an electrical connector for electrically connecting to the vacuum cleaner component of the handheld vacuum cleaner.

[0017] This application also proposes a handheld vacuum cleaner, including a vacuuming component, a vacuuming rod connected to the vacuuming component, and the aforementioned main unit.

[0018] The main unit of this handheld vacuum cleaner includes a dustbin and a dustbin interface connecting to the dustbin. The dustbin interface is used to connect the vacuum cleaner's wand. The main unit rotates relative to the vacuum cleaner wand on a plane parallel to the long axis of the wand, with the dustbin interface as its rotation center. This means the main unit can rotate to different positions relative to the vacuum cleaner wand, making it suitable for different usage environments. For example, rotating to the high position of the vacuum cleaner wand facilitates vacuuming in confined spaces and requires less effort when vacuuming high places like ceilings. The main unit can also rotate to the low position of the vacuum cleaner wand, making floor cleaning easier and lowering the center of gravity, which helps the handheld vacuum cleaner stand stably. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0020] Figure 1 This is a three-dimensional structural diagram of the main unit in the handheld vacuum cleaner according to an embodiment of this application;

[0021] Figure 2 yes Figure 1 A schematic diagram of the structure of the first damping component of the host shown;

[0022] Figure 3 yes Figure 1 A schematic diagram of the electrical connectors and fasteners of the host unit shown.

[0023] Figure 4 yes Figure 1 A schematic diagram of the cross-sectional structure of the host computer shown.

[0024] Figure 5 This is a first three-dimensional structural diagram of the vacuum cleaner rod in the handheld vacuum cleaner according to an embodiment of this application;

[0025] Figure 6 yes Figure 5 A schematic diagram of the second three-dimensional structure of the vacuum cleaner rod shown;

[0026] Figure 7 yes Figure 5 A schematic diagram of the cross-sectional structure of the vacuum cleaner rod shown;

[0027] Figure 8 yes Figure 5 A schematic diagram of the limiting component of the vacuum cleaner rod shown;

[0028] Figure 9 This is a three-dimensional structural diagram of the handheld vacuum cleaner according to an embodiment of this application;

[0029] Figure 10 yes Figure 9 The diagram shows a cross-sectional view of the handheld vacuum cleaner.

[0030] Figure 11 yes Figure 9 The diagram shows the connection between the dust collection interface and the dust box interface in the handheld vacuum cleaner.

[0031] Figure 12 yes Figure 9 A schematic diagram showing the connection structure of the electrical connector and electrode components in the handheld vacuum cleaner;

[0032] Figure 13 yes Figure 9The diagram shows the connection between the fixing component and the limiting component in the handheld vacuum cleaner.

[0033] Figure 14 yes Figure 9 The diagram shows a structural schematic of a vacuum cleaner component in a handheld vacuum cleaner.

[0034] Figure 15 yes Figure 9 The diagram shows another structural diagram of the vacuum cleaner component in the handheld vacuum cleaner.

[0035] Figure 16 This is another cross-sectional structural diagram of the handheld vacuum cleaner according to an embodiment of this application;

[0036] Figure 17 yes Figure 16 The diagram shows the structure of the air supply channel in the handheld vacuum cleaner. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0038] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0039] This handheld vacuum cleaner includes a main unit, a suction wand, and a suction attachment. The main unit serves as the power element for suction, generating a suction force. The suction attachment, as the component that contacts the space to be cleaned, sucks in dust. The suction wand serves as the connecting rod between the suction attachment and the main unit, facilitating handheld operation. The main unit, being the heaviest component in the handheld vacuum cleaner, has a position that determines its stability when placed upright and the effort required to hold it. For example, in this application, the main unit can be positioned high or low on the suction wand. When low, the handheld vacuum cleaner's center of gravity is lower, facilitating stable upright placement. When high, it is convenient for vacuuming confined spaces and requires less effort when vacuuming high places like ceilings.

[0040] This handheld vacuum cleaner utilizes a rotating mechanism between the main unit and the vacuum cleaner handle to achieve different positions for the main unit. Please refer to the attached drawings for details. Figure 1-4This is a structural diagram of the main unit in a handheld vacuum cleaner. Figure 5-8 This is a schematic diagram of the vacuum cleaner wand in a handheld vacuum cleaner. Figure 9-14 This is a schematic diagram of a handheld vacuum cleaner.

[0041] Please participate Figure 1-4 This application proposes a host unit. In this embodiment, the host unit 100 includes a host housing 11, a dust collection box 12, a fan 13, and a battery 14. The dust collection box 12, the fan 13, and the battery 14 are arranged sequentially inside the host housing 11 from the top to the bottom of the host unit 100.

[0042] The main housing 11 is provided with a dustbin interface 111, which connects to the dust collection box 12 located inside the main housing 11. The dustbin interface 111 connects to the suction wand in the handheld vacuum cleaner to achieve vacuuming. That is, no matter where the main unit 100 moves relative to the suction wand, the dustbin interface 111 must always be connected to the suction wand to achieve vacuuming. Therefore, in this embodiment, the main unit 100 rotates relative to the suction wand with the dustbin interface 111 as the rotation center, and can thus rotate to different positions of the suction wand.

[0043] The dustbin interface 11 is located on the upper part of the main unit 100. The dust collection box 12, fan 13 and battery 14 are arranged sequentially from top to bottom inside the main unit 100. In this embodiment, the weight of the dust collection box 12, fan 13 and battery 14 increases sequentially. The center of gravity of the main unit 100 is at the bottom. Therefore, setting the dustbin interface 11 at the top can further ensure that when the main unit 100 is rotated to the low position of the suction rod, the center of gravity of the main unit 100 is as low as possible; when the main unit 100 is rotated to the high position of the suction rod, the center of gravity of the main unit can be as high as possible.

[0044] The main unit 100 rotates around the dustbin interface 111 as the rotation center. There are multiple rotation modes, mainly divided into two modes: the dustbin interface 111 rotates relative to the suction rod or does not rotate. For example, the dustbin interface 111 is fixedly installed on the main unit housing 11 and is rotatably connected to the suction rod; or, the dustbin interface 111 is rotatably installed on the main unit housing 11 and is fixedly connected to the suction rod.

[0045] In summary, in this embodiment, the main unit 100 is rotated around the dustbin interface 111, meaning that the central axis of rotation of the main unit 100 passes through the dustbin interface 111, and the main unit 100 can rotate on a plane parallel to the long axis of the vacuum cleaner rod, i.e., the plane of rotation of the main unit 100 is parallel to the long axis of the vacuum cleaner rod. In some embodiments, the rotatable connection between the dustbin interface 111 and the main unit housing 11, or the rotatable connection between the dustbin interface 111 and the vacuum cleaner rod, can be circular. The central axis of rotation of the main unit 100 passes through the center of this circle, and the plane of rotation formed by the main unit 100 is also parallel to the circular plane.

[0046] In this embodiment, the main unit 100 has a long axis from top to bottom. The main unit 100 is a symmetrical structure, such as a cylinder, and the long axis is its central axis. The connection surface formed at the connection between the dust box interface 111 and the vacuum cleaner rod is parallel to the long axis to ensure that the main unit 100 will not be tilted when rotating. That is, the distance between the main unit 100 and the vacuum cleaner rod remains unchanged when rotating.

[0047] Since the main unit 100 is relatively heavy and difficult to control when rotating, a damping structure is provided for the relative rotation of the main unit 100 and the vacuum cleaner rod. Specifically, a first damping element 15 is provided on the main unit housing 11. During the rotation of the main unit 100 relative to the vacuum cleaner rod, the first damping element 15 and the second damping element on the vacuum cleaner rod interact to generate rotational resistance.

[0048] The first damping element 15 is specifically a damping ring, which is sleeved on the outer periphery of the dust box interface 111. Multiple damping grooves 151 are spaced apart on the surface facing the suction rod, surrounding the dust box interface 111. The second damping element is a damping pin, embedded in the damping groove 151. When the main unit 100 rotates, the damping ring rotates accordingly, and the embedded relationship between the damping pin and the damping groove 151 generates a certain rotational resistance.

[0049] To ensure smooth rotation while providing some resistance, the damping pin is spherical and elastically connected to the vacuum cleaner rod. The damping groove 151 is a spherical groove with an arc-shaped opening for smooth connection to the plane.

[0050] To ensure a secure connection between the main unit 100 and the vacuum cleaner rod, the main unit housing 11 also includes a sub-fixing member 112 located at the lower part of the main unit 100. The upper and lower parts of the main unit 11 are respectively fixed to the vacuum cleaner rod via the dust box interface 111 and the fixing member 112. The sub-fixing member 112 can be a fixing post, and a corresponding female fixing member is provided on the vacuum cleaner rod. The female fixing member includes a limiting block with a fixing groove, into which the fixing post can be embedded. Furthermore, a spring pin can be provided in the fixing groove, and a corresponding locking groove is formed on the fixing post. The spring pin is used to lock into the locking groove of the fixing member 112 to fix the main unit 100.

[0051] In this embodiment, a waste hole 113 is also formed at the lower part of the main unit housing 11. The fan 13 in the main unit 100 draws air, and dust and airflow enter the dust collection box 12 through the dust collection component and dust collection rod. Then, after passing through the fan 13 and the battery 14, it is finally discharged through the waste hole 113, which is grid-shaped.

[0052] The battery 14 is arranged around the main unit housing 11, forming a hollow channel, which makes the airflow through the battery 14 smoother, and the airflow through the battery 14 can also dissipate heat from the battery 14.

[0053] In this embodiment, the main unit 100 can rotate relative to the vacuum cleaner rod with the dustbin interface 111 as the rotation center, thus adapting to different positions on the vacuum cleaner rod and thus accommodating different usage scenarios of the vacuum cleaner. Specifically, the main unit can rotate to a high or low position on the vacuum cleaner rod, ensuring the vacuuming function while enabling vacuuming in narrow spaces and effortless vacuuming of ceilings at the high position, and enabling autonomous upright placement and effortless vacuuming of floors at the low position.

[0054] Please see Figure 5-8 This application proposes a vacuum cleaner rod. In this embodiment, the second end of the vacuum cleaner rod 200 is provided with a handheld part 21, and the first end is used to connect to the vacuum cleaner component of a handheld vacuum cleaner. A dust collection interface 22 is formed between the two ends of the vacuum cleaner rod 200, and the dust collection interface 22 is used to connect to the main unit of the handheld vacuum cleaner. A vacuuming channel 23 is formed inside the vacuum cleaner rod 200, and the vacuuming channel 23 connects the dust collection interface 22 and the vacuum cleaner component.

[0055] In this embodiment, the dust collection port 22 allows the main unit to rotate around the dust collection port 22 as its rotation center, thereby enabling the main unit to rotate to different positions on the suction rod 200 to adapt to different usage scenarios. For example, the main unit can rotate to a first position and a second position. The first position is between the first end and the dust collection port 22, and the second position is between the second end and the dust collection port 22. When the main unit rotates to the second position, it is located at the high position of the suction rod 200, and when it rotates to the first position, it is located at the low position of the suction rod 200.

[0056] To facilitate connection to the main unit, the dust collection interface 22 is located on the side of the suction rod 200. The suction channel 23 includes a vertical channel 231 connecting the suction components and a horizontal channel 232 connecting the dust collection interface 22. The airflow direction within the suction channel 23 changes direction. Since dust also needs to be sucked out within the suction channel 23, the connection between the vertical channel 231 and the horizontal channel 232 is rounded to facilitate dust and airflow and prevent dust accumulation in corners.

[0057] The main unit is connected to the dust collection interface 22 and can rotate to two positions on the suction rod 200 based on the dust collection interface 22. When the main unit is rotated to the first and second positions, it is almost entirely located between the first end and the dust collection interface 22, or between the second end and the dust collection interface 22. Therefore, positioning the dust collection interface 22 in the middle of the suction rod 200, meaning the distance from the first end to the dust collection interface 22 is approximately the same as the distance from the second end to the dust collection interface 22, and approximately equal to the length of the main unit, allows the suction rod 200 to have an optimal length, maximizing space utilization. In this embodiment, the difference between the distance from the first end to the dust collection interface 22 and the distance from the second end to the dust collection interface 22 is set to be less than or equal to a preset value, which in this embodiment can be set to 5cm, to ensure that the two distances are approximately the same.

[0058] Furthermore, the connection surface formed at the connection point between the dust collection interface 22 and the main unit is parallel to the long axis of the vacuum cleaner rod, ensuring that the main unit will not tilt relative to the vacuum cleaner rod 200 when it rotates, that is, the distance between the main unit and the vacuum cleaner rod 200 remains unchanged when rotating.

[0059] Because the main unit is relatively heavy and unstable when rotating, a second damping element 24 is also provided on the suction rod 200, located on the outer periphery of the dust collection interface 22. The second damping element 24 interacts with the first damping element on the main unit to generate rotational resistance when the main unit rotates relative to the suction rod 200.

[0060] The first damping component is a damping ring, which is fitted around the dust box interface. Multiple damping grooves are spaced apart on the surface facing the suction rod, surrounding the dust box interface. The second damping component 24 is a damping pin, embedded in the damping groove. When the main unit rotates, the damping ring rotates as well, and the embedded relationship between the damping pin and the damping groove generates a certain rotational resistance.

[0061] To ensure smooth rotation while providing some resistance, the damping pin is spherical and elastically connected to the vacuum cleaner rod. The damping groove is also spherical with an arc-shaped opening for smooth connection to the plane.

[0062] In this embodiment, a female fixing member 25 is also provided on the vacuum cleaner rod 200. The female fixing member 25 and the dust collection interface 22 work together to fix the main unit in a first position or a second position on the vacuum cleaner rod 200. In this embodiment, the female fixing member 25 is fixedly installed on the vacuum cleaner rod 200 and is used when the main unit is fixed in the second position. In this embodiment, a female fixing member may also be provided on the vacuum cleaner rod 200 or the vacuum cleaner component to be used when the main unit is fixed in the first position.

[0063] The female fixing member 25 can be fixedly mounted on the vacuum cleaner rod 200, or it can be detachably mounted on the fixing member 200. In other embodiments, if the female fixing member 25 is a detachable structure, the female fixing member 25 can be detached and mounted in the first corresponding position to fix the main unit when the main unit is rotated to the first position; and when the main unit is rotated to the second position, the female fixing member 25 can be detached and mounted in the second corresponding position to fix the main unit.

[0064] The female fixing component 25 is specifically a fixing block, on which a fixing groove 251 is formed. The fixing groove 251 faces the direction of rotation of the main unit, meaning that when the main unit rotates to the high position, the female fixing component on the main unit can be directly engaged in the fixing groove 251. A spring-loaded pin 252 is also provided within the fixing groove 251, which further engages the female fixing component, making the connection between the female and male fixing components more secure. The spring-loaded pin 252 specifically includes a ball pin and a spring connecting the ball pin and the limiting groove 251.

[0065] The first end of the vacuum cleaner rod 200 is connected to the vacuum cleaner component, specifically through a plug-in structure 27, which allows for insertion and fixation with the vacuum cleaner component and facilitates disassembly. This allows for easy replacement when the user requires different vacuum cleaner components.

[0066] The second end of the vacuum cleaner rod 200 is provided with a handhold 21, and the handhold 21 is also provided with an operation switch 26 to control the opening of the main unit. In this embodiment, the operation switch 26 is connected to the main unit via signal, specifically by wired communication or wireless communication. For example, it can be connected to the main unit via a power cord through the vacuum cleaner rod 200. Alternatively, a wireless communication module can be provided in the main unit, and the operation switch 26 can be connected to the main unit via the wireless communication module to turn the main unit on and off.

[0067] The vacuum cleaner rod 200 can be divided into a vacuuming section 29 and an operating section 28. The dust collection port 22 and the vacuuming channel 23 are formed in the vacuuming section 29, while the handheld part 21 and the operating switch 26 are formed in the operating section 28. The dust collection port 22 is positioned close to the operating section 28. The lengths of the operating section 28 and the vacuuming section 29 are approximately equal. In this embodiment, the length difference between the operating section 28 and the vacuuming section 29 is set to be less than or equal to 20cm. The operating section 28 does not require an air duct, while the vacuuming section 29 may only require an air duct. If the operating switch 26 requires a wire connection, the wire can be run only in the operating section, while the vacuuming section 29 does not require a wire. The vacuuming channel 23 of the vacuuming section 29 is provided with an electrical connection terminal to connect the main unit and the operating switch 26 of the operating section 28.

[0068] In this embodiment, the dust collection port 22 on the vacuum cleaner stick 200 is used to connect to the main unit, allowing the main unit to rotate around the dust collection port 22 as a rotation center. This enables the main unit to rotate to different positions on the vacuum cleaner stick 200, making it suitable for use in different scenarios. Specifically, the main unit can be fixedly connected to the high or low position of the vacuum cleaner stick 200, ensuring the vacuuming function while enabling vacuuming in narrow spaces and effortless ceiling cleaning at the high position, and allowing for independent upright placement and effortless floor cleaning at the low position.

[0069] Please see Figure 9-14 This application proposes a handheld vacuum cleaner. In this embodiment, the handheld vacuum cleaner 400 includes a main unit 100, a suction rod 200, and a suction component 300. The main unit 100, the suction rod 200, and the suction component 300 are connected in sequence to achieve vacuuming and cleaning.

[0070] In this embodiment, the dust collection interface 22 on the vacuum cleaner rod 200 is located between the two ends of the vacuum cleaner rod 200. The main unit 100 can rotate to different positions of the vacuum cleaner rod 200, either at a high position or at a low position. At the high position, it enables vacuuming in narrow spaces and effortless vacuuming of ceilings; at the low position, it enables independent upright placement and effortless vacuuming of floors.

[0071] Furthermore, the main unit 100 only needs to rotate relative to the suction rod 200 with the dust collection interface 22 as the center of rotation to achieve the switching between high and low positions. No disassembly and reinstallation are required, which is convenient for users and also contributes to the structural stability of the handheld vacuum cleaner 400.

[0072] The specific structure of the main unit 100 and the vacuum cleaner rod 200 has been described above, and the specific structure will not be repeated here. The following mainly describes the cooperation relationship between the two.

[0073] The dustbin interface 111 on the main unit 100 is connected to the dust collection interface 22. The rotation of the main unit 100 relative to the vacuum cleaner 200 can be achieved by the relative rotation of the dustbin interface 111 and the dust collection interface 22. That is, both the dustbin interface 111 and the dust collection interface 22 serve as the rotation center of the main unit 100 relative to the vacuum cleaner 200. Since the dustbin interface 111 and the dust collection interface 22 are connected to each other, the rotation center axis of the main unit 100 passes through the positions of the dustbin interface 111 and the dust collection interface 22. For example, in this embodiment, the connection of the two interfaces is set to be cylindrical and inserted into each other, thus enabling relative rotation. The rotation center axis of the main unit 100 is the center axis of the cylinder.

[0074] To enable rotation, the dust box interface 111 of the main unit 100 can also be rotatably mounted on the main unit housing 11. At this time, the connection between the dust box interface and the main unit housing 11 is cylindrical, enabling rotational connection. The dust box interface 111 and the dust collection interface 22 can be fixedly connected, and the shape of the connection between the two interfaces can be arbitrary.

[0075] Alternatively, the dust collection interface 22 can also be rotatably mounted on the suction rod 200. The dust collection interface 22 is cylindrical at the connection point with the suction rod 200, allowing for a rotatable connection. The dust box interface 11 of the main unit 100 is fixedly mounted, and the dust box interface 11 is fixedly connected to the dust collection interface 22. The connection point between the two interfaces can be any shape.

[0076] For the relatively heavy main unit 100, if the rotation is too smooth, it is easy to cause instability. Therefore, a damping structure is provided between the main unit 100 and the vacuum cleaner rod 200, including a first damping element 15 on the main unit 100 and a second damping element 24 on the vacuum cleaner rod 200.

[0077] The two damping elements interact to form rotational resistance, as described above for the specific structure. In this embodiment, the first damping element 15, which is a damping ring, can also be used as an auxiliary connection structure between the dust box interface 111 and the dust collection interface 22. Specifically, the damping ring is fitted at the connection between the dust box interface 111 and the dust collection interface 22. A snap-fit ​​groove 221 is formed on the outer periphery of the dust collection interface 22, and a snap-fit ​​portion 152 is formed on the inner periphery of the damping ring. The snap-fit ​​portion 152 snaps into the snap-fit ​​groove 221 and can rotate within the snap-fit ​​groove 221. This damping ring structure makes the connection between the dust box interface 111 and the dust collection interface 22 more stable and can, to a certain extent, avoid air leakage at the connection between the two interfaces.

[0078] After rotation, the main unit 100 connects to the high or low position of the suction rod 200. The stable connection between the main unit 100 and the suction rod 200 is mainly achieved through the fixing member 112 on the main unit 100, the first female fixing member 25 on the suction rod 200, and the female fixing member on the suction rod 200 or the suction component 300. This embodiment describes the case where the second female fixing member 321 is provided on the suction component 300; if it is on the suction rod 200, the same arrangement applies.

[0079] The first female fastener 25 and the second female fastener 321 are both used to connect with the fastener 112. In this embodiment, the two structures are the same. If it is convenient to set other components, the two structures can also be set differently, as long as they can both be connected to the fastener 112.

[0080] As described above, both the first female fixing member 25 and the second female fixing member 321 include fixing blocks, fixing grooves are formed on the fixing blocks, and elastic pins are provided in the fixing grooves. The sub-fixing member 112 is a fixing post, and a locking groove 1121 is formed on it. When the sub-fixing member 112 is fixed in the first female fixing member 25 and the second female fixing member 321, the fixing post is embedded in the fixing groove, and the elastic pin is locked in the locking groove 1121.

[0081] In this embodiment, the fixing grooves of the first female fixing member 25 and the second female fixing member 321 face the same direction. When the main unit 100 rotates relative to the vacuum cleaner rod 200, it will only rotate half a turn to fix the first female fixing member 25 and the second female fixing member 321, and the rotation is not easily disturbed.

[0082] The vacuum cleaner 300 is used to contact the vacuuming space and can have various structures, such as a floor brush structure (e.g., Figure 14 ), narrow tube structure (such as Figure 15 The vacuum cleaner 300 is connected to the first end of the vacuum cleaner rod 200, specifically to the plug-in structure 27. In this embodiment, the vacuum cleaner 300 is detachably connected to the vacuum cleaner rod 200. In other embodiments, the vacuum cleaner 300 may be non-detachably connected to the vacuum cleaner rod 200.

[0083] If the vacuum cleaner 300 is a floor brush structure, it includes a vacuum floor brush 31 and a floor brush connector 32 rotatably connected to the vacuum floor brush 31. The vacuum cleaner rod 200 is connected to the floor brush connector 32, so the vacuum cleaner rod 200 can rotate relative to the vacuum floor brush 31, which facilitates user operation.

[0084] The floor brush connector 32 is equipped with a second electrical connector 322, which is electrically connected to the vacuuming floor brush 31. The main unit 100 is equipped with a first electrical connector 16. When the main unit 100 is rotated to the low position of the vacuuming rod 200, the first electrical connector 16 connects to the second electrical connector 322, and then the main unit 100 can supply power to the vacuuming component 300. Based on this, in this embodiment, there is no need to set up an electrical connection structure for the vacuuming component 300 in the vacuuming rod 200. Only a vacuuming channel needs to be set at the connection with the vacuuming component 300, simplifying the structure of the vacuuming rod 200.

[0085] Specifically, the first electrical connector 16 comprises two elastic pins, and the second electrical connector 322 comprises two conductive plates, with the elastic pins and conductive plates connected in a one-to-one correspondence. Furthermore, in this embodiment, the first electrical connector 16 and the sub-fixing member 112 can be integrated together, both located at the lower part of the main unit 100.

[0086] In this embodiment, the electric drive structure of the vacuum brush 31 includes a roller brush and a drive motor for driving the roller brush, and the second electrical connector 322 is electrically connected to the drive motor; or the vacuum brush 31 includes a jet nozzle and a jet fan for supplying air to the jet nozzle, and the second electrical connector 322 is electrically connected to the jet fan.

[0087] The vacuuming brush 31 with a jet nozzle sprays jets to lift dust off the floor, making it easier to vacuum. Compared to a roller brush, it is more suitable for cleaning carpets or deep crevices in the floor.

[0088] For a floor brush with jet nozzles, in addition to air supply through a jet fan, air can also be supplied by exhaust gas in the main unit 100. The main unit 100 is provided with an exhaust port 17 connected to the main unit housing 11. An air supply channel 323 connected to the jet nozzle 311 is provided in the floor brush connector 32. When the main unit 100 is rotated to the low position of the suction rod 200, the exhaust port 17 is connected to the air supply channel 323, and the exhaust gas in the main unit housing 11 is supplied to the jet nozzle 324 through the exhaust port 17 and the air supply channel 323.

[0089] In this embodiment, the main unit 100 is connected to the vacuum cleaner rod 200 and can rotate to a high or low position relative to the vacuum cleaner rod 200, making it easier for the user to use. A damping structure is provided for rotation to facilitate stable rotation. Limiting structures are provided at the high and low positions to ensure that the main unit 100 can be fixedly connected to the vacuum cleaner rod. In the low position, the main unit 100 can directly power the vacuum cleaner component 300, and the structure of the vacuum cleaner rod 200 can be simplified accordingly.

[0090] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of those features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications will change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. A process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0091] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A main unit of a handheld vacuum cleaner, characterized in that, The main unit includes a dust collection box and a dust collection box interface communicating with the dust collection box. The dust collection box interface is used to connect the suction rod of the handheld vacuum cleaner. The main unit is able to rotate relative to the suction rod on a plane parallel to the long axis of the suction rod, with the dust collection box interface as the rotation center. The center of gravity of the main unit is lower than the dust box interface, so that when the main unit is rotated to the low position of the vacuum cleaner rod, the center of gravity of the main unit is lower than the dust box interface. When the main unit is rotated to the high position of the vacuum cleaner rod, the center of gravity of the main unit is relatively high relative to the dust box interface.

2. The host computer according to claim 1, characterized in that, The main unit includes a main unit housing, the dust collection box is disposed inside the main unit housing, and the dust collection box interface is disposed on the main unit housing; The dustbin interface is fixedly mounted on the main housing and rotatably connected to the suction rod; or, the dustbin interface is rotatably mounted on the main housing and fixedly connected to the suction rod.

3. The host computer according to claim 2, characterized in that, The main unit housing is provided with a first damping element. During the rotation of the main unit, the first damping element interacts with the second damping element on the vacuum cleaner rod to generate rotational resistance.

4. The host computer according to claim 3, characterized in that, The first damping element is a damping ring, and the surface of the damping ring facing the vacuum rod is provided with a plurality of damping grooves at intervals, the plurality of damping grooves surrounding the dust box interface; The second damping element is a damping pin, which is embedded in the damping groove.

5. The host computer according to claim 2, characterized in that, The dustbin interface is rotatably connected to the suction rod, and the connection between the dustbin interface and the suction rod is cylindrical; or, the dustbin interface is rotatably mounted on the main housing, and the connection between the dustbin interface and the main housing is cylindrical.

6. The host computer according to claim 5, characterized in that, The main housing is cylindrical, and the major axis of the main housing is parallel to the cylindrical cross-section of the connection point.

7. The host computer according to claim 2, characterized in that, The upper part of the main unit is defined as the location of the dust collection box. The main unit includes the dust collection box, the fan, and the battery arranged sequentially from top to bottom.

8. The host computer according to claim 7, characterized in that, The lower part of the main housing has an exhaust vent, and the battery is arranged around the main housing, with a hollow channel connecting the exhaust vent.

9. The host computer according to claim 1, characterized in that, The main unit is provided with an exhaust vent, which is used to connect to the vacuum cleaner component of the handheld vacuum cleaner.

10. The host computer according to claim 1, characterized in that, The upper part of the main unit is defined by the location of the dust collection box, and a sub-fixing member is formed on the lower part of the main unit; the main unit is fixed to different positions of the vacuum cleaner rod through the dust box interface and the sub-fixing member.

11. The host computer according to claim 1, characterized in that, The main unit is equipped with an electrical connector for electrical connection with the vacuum cleaner component of the handheld vacuum cleaner.

12. A handheld vacuum cleaner, characterized in that, The handheld vacuum cleaner includes a vacuuming component, a vacuuming rod connected to the vacuuming component, and a main unit as described in any one of claims 1-11.

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