Dual blowing and sucking air nozzle and dust collector

Abstract

The application discloses a blowing and sucking dual-purpose air nozzle and a dust collector. The air nozzle comprises an air path structure and an air nozzle interface cylinder. The air path structure is provided with an axial movable slot, a first channel and a second channel. The slot wall of the axial movable slot is provided with a first hole and a second hole at different axial positions, which are communicated with the first channel and the second channel. The air nozzle interface cylinder is movably arranged in the axial movable slot in the axial direction. The air nozzle interface cylinder is provided with an axial air channel and a lateral air port communicated with the axial air channel. One end of the axial air channel forms a multifunctional hole. The air nozzle interface cylinder is further provided with a through hole not communicated with the axial air channel and the lateral air port. The air nozzle interface cylinder is moved in the axial direction, so that the lateral air port is selectively communicated with the first hole or the second hole, thereby switching the multifunctional hole between the air inlet and the air outlet. The multifunctional hole can be switched between blowing and sucking by axially pushing and pulling the air nozzle interface cylinder, without rotating operation or replacing accessories. The operation is intuitive and simple, and the structure is compact and reliable.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, specifically to a blower / vacuum nozzle and a vacuum cleaner. Background Technology

[0002] Dual-purpose cleaning devices that combine blowing and suction are widely used in daily cleaning, requiring switching between suction and blowing modes. Existing technologies primarily employ two methods for switching between these modes: one involves altering the internal airflow direction by rotating the valve core, rotating the lever, or rotating the switching cover; the other involves changing different blowing or suction attachments to achieve mode switching.

[0003] Both of the above solutions share a common drawback: the air outlet and the air inlet are usually two independent openings, making it impossible to easily switch between blowing and inhaling through the same air hole; when switching usage modes, users either need to perform a rotation operation or re-plug the accessories, which is cumbersome and inconvenient to use.

[0004] Therefore, there is an urgent need for a blower and vacuum cleaner that can easily switch between blowing and suction functions through the same air hole. Summary of the Invention

[0005] Therefore, it is necessary to provide a blower and vacuum cleaner that addresses the problem of cumbersome operation and inconvenience caused by the difficulty in easily switching between blowing and suction functions through the same air hole in dual-purpose blower and vacuum cleaner.

[0006] In a first aspect, the present invention provides a blower nozzle that can be used for both blowing and suction, including an air passage structure and a nozzle interface cylinder; The air passage structure is provided with an axial movable groove, a first channel and a second channel; the groove wall of the axial movable groove is provided with a first hole and a second hole at different axial positions, the first hole is connected to one end of the first channel and the second hole is connected to one end of the second channel; The nozzle interface cylinder is axially movable within the axial movable groove. The nozzle interface cylinder has an axial air passage, and a lateral air port communicating with the axial air passage is provided on the side wall of the nozzle interface cylinder. One end of the axial air passage forms a multi-functional hole. The nozzle interface cylinder also has a through hole that axially passes through both ends of the nozzle interface cylinder, and the through hole is not communicating with the axial air passage or the lateral air port. The nozzle interface cylinder moves axially, so that the lateral air port can selectively communicate with the first hole or with the second hole; When the lateral air inlet is connected to the first hole, the multifunctional hole serves as an air intake, and the airflow enters through the multifunctional hole and flows sequentially through the axial air passage, the lateral air inlet, the first hole, and the first channel. When the lateral air inlet is connected to the second hole, the multifunctional hole serves as an air blowing port. External airflow enters through the through hole and passes through the first hole and the first channel to participate in the air circulation. The airflow passes through the second channel, the second hole, the lateral air inlet, and the axial air passage, and flows out from the multifunctional hole.

[0007] In one embodiment, the outer wall of the nozzle interface cylinder is provided with a sealing ring, which seals against the groove wall between the nozzle interface cylinder and the axial movable groove. The sealing ring moves axially together with the nozzle interface cylinder to maintain airtightness when the lateral air port is in communication with the first hole or when the lateral air port is in communication with the second hole.

[0008] In one embodiment, the side air port is an annular hole, and two sealing rings are provided, located at both ends of the side air port in the axial direction; or, the side air port is a non-annular hole, and the sealing ring is a sealing ring surrounding the periphery of the side air port.

[0009] In one embodiment, the end of the nozzle interface cylinder near the multi-functional hole is provided with an end cover that moves synchronously along the axial direction. The side wall of the end cover abuts against the inner wall of the vacuum cleaner's outer shell, and a gap channel is formed between the end cover and the air passage structure. The gap channel communicates with the external air vents on the outer shell of the vacuum cleaner, and the gap channel also communicates with the channel formed between the nozzle interface cylinder and the axial movable groove; When the lateral air vent is connected to the first hole, the airflow is discharged and sequentially flows through the second channel, the second hole, the gap channel, and the external air vent to the outside.

[0010] In one embodiment, a dust collection cylinder is further included, the dust collection cylinder having an axially opposed first end and a second end, and a dust collection chamber located between the first end and the second end; the first end is detachably connected to the end of the end cap body facing away from the nozzle interface cylinder; The first end is provided with a filter, and the second end is provided with an air pipe, which connects the dust collection chamber to the outside; the dust collection chamber is connected to the multi-functional hole through the filter.

[0011] In one embodiment, the inner wall of the end cover is provided with an L-shaped mounting groove, the L-shaped mounting groove including a communicating vertical groove and a horizontal groove, the vertical groove extending to the end edge of the end cover to form a notch; the horizontal groove is provided with a protrusion; the outer wall of the first end of the dust collection cylinder is provided with a locking block; After the card block enters the vertical groove through the notch and moves to the end, the dust collection cylinder rotates relative to the end cover, causing the card block to enter the horizontal groove and pass over the protrusion, forming an axial limit.

[0012] Secondly, the present invention provides a vacuum cleaner, comprising: The outer casing has external vents. A fan assembly is disposed within the housing. The fan assembly has a first air outlet and a second air outlet, one of which is an air inlet and the other is an air outlet. And the blower / suction nozzle described in any of the above embodiments, wherein one end of the first channel is connected to the first air outlet, and one end of the second channel is connected to the second air outlet.

[0013] In one embodiment, the vacuum cleaner further includes a battery disposed inside the housing to provide power to the fan assembly; the housing is generally cylindrical, and the battery, the fan assembly, the air passage structure and the nozzle interface cylinder are arranged sequentially along the axial direction.

[0014] In one embodiment, a first sealing ring and a second sealing ring are also included; The first sealing ring is disposed at one end of the fan assembly near the second air outlet. The first sealing ring is sealed between the outer casing and the fan assembly to prevent the airflow from the second air outlet from entering the chamber where the battery is located. The second sealing ring is provided with a first through hole and a second through hole, both of which are axial through holes; the first through hole forms the port of the first channel near the fan side, and the second through hole forms the port of the second channel near the fan side; the first through hole is sealed and fitted onto the first air outlet, and the second sealing ring is connected between the air passage structure and the outer shell; The gap between the fan assembly and the housing forms an airflow channel connecting the second air outlet and the second through hole.

[0015] In one embodiment, a first mounting housing and a second mounting housing are included; The first mounting shell and the second mounting shell are detachably fastened together to form a first cavity for mounting the battery, a second cavity for mounting the fan assembly, and a third cavity for mounting the air passage structure. The first sealing ring is sleeved on the outer periphery of the fan assembly, and its outer side abuts against the inner walls of the first mounting shell and the second mounting shell to seal and block the first cavity from the second cavity; The second sealing ring is connected to the outer periphery of the gas passage structure, and its outer side abuts against the inner walls of the first mounting shell and the second mounting shell to prevent airflow from leaking from the gap between the gas passage structure and the first mounting shell and the second mounting shell. The integral assembly formed by the first mounting shell and the second mounting shell being fastened together is axially assembled inside the outer shell.

[0016] In one embodiment, a first main board and a second main board are disposed in the first cavity, and both the first main board and the second main board are electrically connected to the battery; the first main board is mounted on the side of the battery, and the second main board is mounted on the end of the battery away from the fan assembly; The first motherboard is provided with control buttons and / or a charging interface. The outer shell has a clearance hole at the location of the first cavity. The control buttons and / or the charging interface on the first motherboard pass through the first mounting shell and are exposed from the clearance hole. The second motherboard is provided with control buttons and / or a charging interface, which are exposed after passing through the end cover at the bottom of the housing.

[0017] As can be seen from the above technical solutions, the embodiments of the present invention have at least the following advantages and positive effects: This invention achieves the following technical effects by axially movably arranging the nozzle interface cylinder within the axial movable groove of the air passage structure and selectively connecting the first and second holes at different axial positions using a lateral air port, allowing the multifunctional hole at the end of the axial air passage to switch between an air intake and an air blowing port: Firstly, the same multi-functional port can be used for both air intake (vacuuming) and air exhaust (blowing), eliminating the need to switch between two different air ports and connecting accessories. The structure is simple and easy to use. Secondly, the switching operation only requires pushing or pulling the nozzle interface cylinder along the axis. The operation direction is consistent with the axis of the equipment, making the action intuitive, requiring little operating force, and providing a better user experience than the rotary switching method. Third, the overall air passage structure is compact, requiring no additional rotating mechanism, resulting in high reliability and low manufacturing cost. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the overall structure of the vacuum cleaner according to an embodiment of the present invention; Figure 2 for Figure 1 The diagram shows the exploded structure of the vacuum cleaner. Figure 3 for Figure 2 An exploded view of the internal structure of the vacuum cleaner's outer casing; Figure 4 for Figure 3 The diagram shows a view of the air passage structure facing the end face of the fan assembly. Figure 5 for Figure 3 Another view of the air passage structure component facing the end face of the fan assembly. Figure 6 for Figure 3 The view of the air passage structure component facing away from the fan assembly. Figure 7 for Figure 3 Another view of the air passage structure component shown, facing away from the fan assembly. Figure 8 for Figure 3 The diagram shows the structure of the nozzle interface cylinder. Figure 9 For along Figure 8 A schematic diagram of the cross-sectional structure of the mid-section line AA; Figure 10 for Figure 1 A cross-sectional schematic diagram of a vacuum cleaner shown; Figure 11 for Figure 1 A cross-sectional schematic diagram of another section of the vacuum cleaner shown.

[0020] Explanation of reference numerals in the attached drawings: 1-Outer shell; 2-External vent; 3-Battery; 10-Fan assembly; 11-First air outlet; 12-Second air outlet; 20-Air passage structure; 22-Main structure; 221-Axial movable groove; 222-First channel; 223-Second channel; 224-First hole; 225-Second hole; 30-Nozzle interface cylinder; 31-Axial air passage; 32-Side air outlet; 33-Multifunctional hole; 34-Through hole; 35-Sealing ring; 40-End cover; 41-Gap channel; 42-L-shaped fitting 43-Vertical groove; 44-Horizontal groove; 45-Notch; 50-Dust collection cylinder; 51-First end; 52-Second end; 53-Dust collection chamber; 54-Filter; 55-End cap; 56-Air pipe; 57-Clamping block; 58-Protrusion; 60-First sealing ring; 70-Second sealing ring; 711-First through hole; 712-Second through hole; 81-First mounting shell; 811-Allowing hole; 82-Second mounting shell; 83-First cavity; 84-Second cavity; 85-Third cavity; 91-First main board; 92-Second main board. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] It should be noted that in the embodiments of the present invention, terms such as "first" and "second" are used for descriptive purposes only to distinguish different components, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Unless otherwise expressly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0023] This invention provides a blower nozzle that can be used for both blowing and suction.

[0024] The core air path switching principle of this blow-and-suction dual-purpose nozzle is as follows: through an axially movable nozzle interface cylinder, its lateral air port can selectively connect with two holes (the first hole and the second hole) on the air path structure at different axial positions, thereby realizing the switching of a single multi-functional hole between the air intake port and the air blowing port.

[0025] To achieve this principle, one of the core components of the nozzle is the "air path structure." It should be noted that, within the broader scope of this invention, the "air path structure" can be a single, integrally formed component, or a composite component consisting of multiple sub-components fixedly connected or detachably assembled. As long as it possesses the following functional structure: an "axially movable groove" for accommodating the nozzle interface cylinder, with a "first hole" and a "second hole" located at different axial positions on the groove wall, and the air path structure internally forming a "first channel" and a "second channel" respectively communicating with the first hole and the second hole, it falls under the definition of an "air path structure" in this invention. The following will describe this in detail with reference to two specific embodiments.

[0026] Example 1: The air passage structure is an integral piece. refer to Figures 4 to 7In this embodiment, the air passage structure 20 is an integral structural component, formed by means such as injection molding, machining, or 3D printing. The integrally formed air passage structure 20 has an axial movable groove 221, a first channel 222, and a second channel 223 directly machined inside. On the groove wall of the axial movable groove 221, a first hole 224 and a second hole 225 are directly formed at different axial positions. The first hole 224 communicates with one end of the first channel 222, and the second hole 225 communicates with one end of the second channel 223. The nozzle interface cylinder 30 is axially movable within the axial movable groove 221. This integral molding method has advantages such as fewer parts, no assembly required, excellent airtightness, and high structural strength.

[0027] Example 2: The gas path structure is a modular assembly type. refer to Figure 3 As another implementation, the air passage structure 20 can also be composed of a main body 22 and components such as a second sealing ring 70. The main body 22 internally forms a first channel 222, a second channel 223, and an axially movable groove 221. The second sealing ring 70 has a first through hole 711 and a second through hole 712, which axially penetrate both ends of the second sealing ring 70. After assembly, the first through hole 711 forms the port of the first channel 222 near the fan side, and the second through hole 712 forms the port of the second channel 223 near the fan side. This modular assembly structure facilitates independent manufacturing of each component, and the second sealing ring 70 can be replaced for compatibility with different models of fan components 10, improving the product's versatility and maintainability.

[0028] The following describes in detail the specific structure and working principle of the nozzle of the present invention and the vacuum cleaner including the nozzle, with reference to a preferred embodiment of the vacuum cleaner.

[0029] See Figures 1 to 3 The vacuum cleaner provided in this embodiment of the invention includes: a housing 1, a fan assembly 10 disposed within the housing 1, and a blower / vacuum nozzle as described above. The housing 1 has external air vents 2. The fan assembly 10 has a first air inlet 11 and a second air inlet 12, one of which is an air inlet and the other an air outlet. In this embodiment, the first air inlet 11 is an air inlet and the second air inlet 12 is an air outlet; however, it is understood that their functions can be interchanged in other embodiments.

[0030] Combination Figure 10 and Figure 11One end of the first channel 222 of the nozzle is connected to the first air outlet 11, and one end of the second channel 223 is connected to the second air outlet 12. Specifically, the first channel 222 is sealed to the first air outlet 11 through the first through hole 711 of the second sealing ring 70; the second channel 223 is connected to the gap channel between the fan assembly 10 and the second air outlet 12 through the second through hole 712 of the second sealing ring 70.

[0031] The nozzle interface sleeve 30 is axially movable within the axially movable groove 221. (Reference) Figure 8 and Figure 9 The nozzle interface cylinder 30 has an axial air passage 31 inside, and a lateral air port 32 communicating with the axial air passage 31 is provided on its side wall. One end of the axial air passage 31 (i.e., the end away from the fan assembly 10) forms a multi-functional hole 33. The nozzle interface cylinder 30 also has a through hole 34, which axially passes through both ends of the nozzle interface cylinder 30 and is not communicating with either the axial air passage 31 or the lateral air port 32.

[0032] refer to Figure 10 When the user moves the nozzle interface cylinder 30 axially, connecting the side air port 32 with the first hole 224, the multi-functional hole 33 acts as an intake port, allowing airflow to enter through the multi-functional hole 33 and flow sequentially through the axial air passage 31, the side air port 32, the first hole 224, and the first channel 222. When the user moves the nozzle interface cylinder 30 axially, connecting the side air port 32 with the second hole 225, the multi-functional hole 33 acts as an exhaust port, allowing external airflow to enter through the through hole 34 and then through the first hole 224 and the first channel 222 to participate in air circulation. Simultaneously, the airflow flows through the second channel 223, the second hole 225, the side air port 32, and the axial air passage 31, exiting from the multi-functional hole 33.

[0033] refer to Figure 8 and Figure 9 To improve sealing during air path switching, a sealing ring 35 can be installed on the outer wall of the nozzle interface sleeve 30. Combined with... Figure 10 and Figure 11The sealing ring 35 abuts against the wall of the axial movable groove 221 between the nozzle interface cylinder 30 and the nozzle interface cylinder 30, and moves axially together with the nozzle interface cylinder 30 to maintain airtightness when the side air port 32 is connected to the first hole 224 or the second hole 225. Preferably, the side air port 32 can be designed as an annular hole with a sealing ring 35 at each of its axial ends; alternatively, the side air port 32 can be a non-annular hole, in which case a sealing ring 35 can be provided around the periphery of the side air port 32. It should be noted that the arrangement of the sealing rings in this invention is not limited to the above embodiments. For example, a fixed sealing ring can be provided around the first hole 224, a fixed sealing ring can be provided around the second hole 225, while no sealing ring is provided around the periphery of the side air port 32. When the nozzle interface cylinder 30 moves into position, the end face of the side air port 32 presses against the sealing ring around the corresponding hole position, thus achieving airtight sealing. These variations are all within the scope of protection of this invention.

[0034] In addition, refer to Figure 10 and Figure 11 The nozzle interface cylinder 30 is also provided with an end cover 40 at the end near the multi-functional hole 33. The side wall of the end cover 40 abuts against the inner wall of the outer shell 1, and a gap channel 41 is formed between the end cover 40 and the air passage structure 20. The gap channel 41 communicates with the external air hole 2 opened on the outer shell 1, and also communicates with the channel formed between the nozzle interface cylinder 30 and the axial movable groove 221. When the side air port 32 is connected to the first hole 224 (dust suction mode), the airflow can be discharged to the outside through the second channel 223, the second hole 225, the gap channel 41 and the external air hole 2 in sequence, making the overall air passage more orderly.

[0035] As an extension of the air nozzle, this embodiment also includes a dust collection cylinder 50. See [link to documentation]. Figure 2 and Figure 10 The dust collection cylinder 50 has a first end 51, a second end 52, and a dust collection chamber 53 located between the two. The first end 51 is equipped with a filter 54 (e.g., a filter cartridge or HEPA filter), and the second end 52 is equipped with an air pipe 56, which connects the dust collection chamber 53 to the outside. The first end 51 of the dust collection cylinder 50 is detachably connected to the end of the end cover 40 facing away from the nozzle interface cylinder 30. After assembly, the dust collection chamber 53 is connected to the multi-functional port 33 via the filter 54. In suction mode, the dust-laden airflow enters the dust collection chamber 53 through the air pipe 56, where dust is intercepted by the filter 54, and clean air enters the air path through the multi-functional port 33. In blowing mode, the airflow is reversed, blowing out from the multi-functional port 33, passing through the filter 54 and the dust collection chamber 53, and then exiting through the air pipe 56, which can be used to blow away dust.

[0036] To achieve a quick and reliable connection between the dust collection cylinder 50 and the end cover 40, this embodiment provides a preferred connection structure. For example... Figure 2 and Figure 3As shown, the inner wall of the end cover 40 is provided with an L-shaped mounting groove 42, which includes a vertical groove 43 and a horizontal groove 44 that are connected. The vertical groove 43 extends to the end edge of the end cover 40 to form a notch 45. A protrusion 58 is provided in the horizontal groove 44. The outer wall of the first end 51 of the dust collection cylinder 50 is provided with a locking block 57 corresponding to the position of the L-shaped mounting groove 42. During assembly, the locking block 57 is aligned with the notch 45 and pushed axially into the end of the vertical groove 43. Then, the dust collection cylinder 50 is rotated (usually about 90 degrees). The locking block 57 enters the horizontal groove 44 and passes over the protrusion 58, forming an axial limit. After the locking block 57 passes over the protrusion 58, if there is no sufficiently large reverse external force, the locking block 57 cannot retract into the vertical groove 43 on its own, thereby firmly locking the dust collection cylinder 50 onto the end cover 40. When disassembly is required, it can be pulled out by rotating in the opposite direction. As a further preferred limiting method, a groove can be provided in one of the protrusions 58 and the locking block 57, and a corresponding protrusion can be provided in the other. When the locking block 57 passes over the protrusion 58, the protrusion is embedded in the groove, providing a clearer feel for being in place and enhancing the anti-loosening effect.

[0037] To achieve a compact internal layout and reliable airtightness, reference Figure 3 In this embodiment, a first sealing ring 60 and a second sealing ring 70 are also provided.

[0038] The first sealing ring 60 is disposed at the end of the fan assembly 10 near the second air outlet 12. The first sealing ring 60 is sealed between the housing 1 and the fan assembly 10 to prevent the airflow discharged from the second air outlet 12 from entering the chamber where the battery 3 is located, ensuring that the airflow flows along a predetermined path.

[0039] The second sealing ring 70 has a first through hole 711 and a second through hole 712. Both the first through hole 711 and the second through hole 712 are axial through holes. The first through hole 711 forms the port of the first channel 222 near the fan side, and is sealed to the first air outlet 11 of the fan assembly 10. The second through hole 712 forms the port of the second channel 223 near the fan side. The second sealing ring 70 connects the air passage structure 20 and the outer shell 1, and serves to seal and guide.

[0040] The gap between the fan assembly 10 and the housing 1 forms an airflow channel connecting the second air outlet 12 and the second through hole 712. In dust collection mode, the airflow discharged from the second air outlet 12 enters the second through hole 712 through this gap, then flows into the second channel 223, and finally exits from the external air hole 2.

[0041] Furthermore, to facilitate the installation and securing of internal components, this embodiment also includes a first mounting shell 81 and a second mounting shell 82. See also... Figure 3The first mounting shell 81 and the second mounting shell 82 are detachably fastened together (e.g., by clips or screws), and together they form three chambers: a first chamber 83 for mounting the battery 3, a second chamber 84 for mounting the fan assembly 10, and a third chamber 85 for mounting the air passage structure 20.

[0042] The first sealing ring 60 is fitted around the outer periphery of the fan assembly 10, and its outer side abuts against the inner wall of the first mounting shell 81 and the second mounting shell 82, thereby sealing and blocking the first cavity 83 and the second cavity 84 to prevent airflow from the air outlet from entering the battery compartment.

[0043] The second sealing ring 70 is connected to the outer periphery of the air passage structure 20, and its outer side also abuts against the inner wall of the first mounting shell 81 and the second mounting shell 82, preventing airflow from leaking from the gap between the air passage structure 20 and the mounting shell, thus ensuring the high efficiency of the air passage system.

[0044] The integral assembly formed by the first mounting shell 81 and the second mounting shell 82 is axially assembled inside the outer shell 1. This modular design facilitates production assembly and maintenance / replacement.

[0045] Furthermore, this embodiment also optimizes the circuit layout. A first mainboard 91 and a second mainboard 92 are disposed within the first cavity 83, both electrically connected to the battery 3. The first mainboard 91 is mounted on the side of the battery 3, and the second mainboard 92 is mounted on the end of the battery 3 furthest from the fan assembly 10. The first mainboard 91 is provided with control buttons (such as a power switch and mode switch) and / or a charging interface (such as a Type-C interface). The outer casing 1 has a clearance hole 811 at the location of the first cavity 83. The control buttons and / or charging interface on the first mainboard 91 pass through the first mounting casing 81 and protrude from the clearance hole 811, facilitating user operation and charging. The second mainboard 92 can also be provided with control buttons and / or a charging interface, which protrude through the end cap 55 at the bottom of the outer casing 1 and can serve as spare or expansion interfaces.

[0046] As an optimized layout of the overall structure, the outer shell 1 of the vacuum cleaner is generally cylindrical, and the battery 3, fan assembly 10, air passage structure 20 and nozzle interface tube 30 are arranged in sequence along the axial direction to form the shape of a handheld vacuum cleaner, which is convenient to hold and easy to operate.

[0047] In summary, the vacuum cleaner of the present invention can switch between vacuuming mode and blowing mode.

[0048] Dust collection mode: Push the nozzle interface tube 30 towards the fan side (or move it by pulling the dust collection tube 50) to connect the side air port 32 with the first hole 224. Start the fan assembly 10. Dust-laden gas from the outside enters the dust collection chamber 53 through the air pipe 56. The dust is intercepted by the filter 54. Clean air passes sequentially through the filter 54, multi-functional hole 33, axial air passage 31, side air port 32, first hole 224, first channel 222, first through hole 711, first air outlet 11 (air inlet), fan assembly 10, second air outlet 12 (air outlet), and then is discharged to the outside through the gap between the fan assembly 10 and the outer shell 1, second through hole 712, second channel 223, second hole 225, gap channel 41, and external air port 2.

[0049] Dust blowing mode: Pull the nozzle interface tube 30 out towards the multi-functional hole side, so that the side air port 32 is connected to the second hole 225. Start the fan assembly 10, and the outside clean air enters through the external air port 2, and passes in sequence through the gap channel 41, through hole 34, first hole 224, first channel 222, first through hole 711, first air port 11 (air inlet), fan assembly 10, second air port 12 (air outlet), and then is blown out through the gap between the fan assembly 10 and the outer shell 1, second through hole 712, second channel 223, second hole 225, side air port 32, axial air channel 31, multi-functional hole 33, filter 54, dust collection chamber 53, and air pipe 56, which can be used to blow away dust in the gaps.

[0050] Users can switch modes simply by pushing or pulling the nozzle interface cylinder 30 or the dust collection cylinder 50 along the axis. No rotation or accessory replacement is required. The structure is compact, the operation is intuitive, and the user experience is good.

[0051] This invention provides various feasible airflow structural components and combines them with an axially movable nozzle interface cylinder, enabling convenient switching between suction and blowing functions from a single multi-functional orifice. Users can switch modes simply by pushing or pulling the nozzle interface cylinder or its linked dust collection cylinder axially, without the need for rotation or accessory replacement. The compact structure and intuitive operation significantly improve ease of use and reliability.

[0052] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A blower nozzle that can be used for both blowing and suction, characterized in that, This includes airflow structural components and nozzle interface cylinders; The air passage structure is provided with an axial movable groove, a first channel and a second channel; the groove wall of the axial movable groove is provided with a first hole and a second hole at different axial positions, the first hole is connected to one end of the first channel and the second hole is connected to one end of the second channel; The nozzle interface cylinder is axially movable within the axial movable groove. The nozzle interface cylinder has an axial air passage, and a lateral air port communicating with the axial air passage is provided on the side wall of the nozzle interface cylinder. One end of the axial air passage forms a multi-functional hole. The nozzle interface cylinder also has a through hole that axially passes through both ends of the nozzle interface cylinder, and the through hole is not communicating with the axial air passage or the lateral air port. The nozzle interface cylinder moves axially, so that the lateral air port can selectively communicate with the first hole or with the second hole; When the lateral air inlet is connected to the first hole, the multifunctional hole serves as an air intake, and the airflow enters through the multifunctional hole and flows sequentially through the axial air passage, the lateral air inlet, the first hole, and the first channel. When the lateral air inlet is connected to the second hole, the multifunctional hole serves as an air blowing port. External airflow enters through the through hole and passes through the first hole and the first channel to participate in the air circulation. The airflow passes through the second channel, the second hole, the lateral air inlet, and the axial air passage, and flows out from the multifunctional hole.

2. The blower / suction nozzle according to claim 1, characterized in that, The outer wall of the nozzle interface cylinder is provided with a sealing ring. The sealing ring is sealed and abuts against the groove wall of the axial movable groove. The sealing ring moves axially together with the nozzle interface cylinder to maintain airtightness when the side air port is connected to the first hole or when the side air port is connected to the second hole.

3. The blower / suction nozzle according to claim 2, characterized in that, The side air port is an annular hole, and two sealing rings are provided, located at the two ends of the side air port in the axial direction; or, the side air port is a non-annular hole, and the sealing ring is a sealing ring surrounding the periphery of the side air port.

4. The blower / suction nozzle according to claim 1, characterized in that, The nozzle interface cylinder is provided with an end cover that moves synchronously along the axial direction at the end near the multi-functional hole. The side wall of the end cover abuts against the inner wall of the vacuum cleaner's outer shell, and a gap channel is formed between the end cover and the air passage structure. The gap channel communicates with the external air vents on the outer shell of the vacuum cleaner, and the gap channel also communicates with the channel formed between the nozzle interface cylinder and the axial movable groove; When the lateral air vent is connected to the first hole, the airflow is discharged and sequentially flows through the second channel, the second hole, the gap channel, and the external air vent to the outside.

5. The blower / suction nozzle according to claim 4, characterized in that, It also includes a dust collection cylinder, which has an axially opposite first end and a second end, and a dust collection chamber located between the first end and the second end; the first end is detachably connected to the end of the end cap body facing away from the nozzle interface cylinder. The first end is provided with a filter, and the second end is provided with an air pipe, which connects the dust collection chamber to the outside; the dust collection chamber is connected to the multi-functional hole through the filter.

6. The blower / suction nozzle according to claim 5, characterized in that, The inner wall of the end cover is provided with an L-shaped assembly groove, which includes a vertical groove and a horizontal groove that are connected. The vertical groove extends to the end edge of the end cover to form a notch. The horizontal groove is provided with a protrusion. The outer wall of the first end of the dust collection cylinder is provided with a locking block. After the card block enters the vertical groove through the notch and moves to the end, the dust collection cylinder rotates relative to the end cover, causing the card block to enter the horizontal groove and pass over the protrusion, forming an axial limit.

7. A vacuum cleaner, characterized in that, include: The outer casing has external vents. A fan assembly is disposed within the housing. The fan assembly has a first air outlet and a second air outlet, one of which is an air inlet and the other is an air outlet. The blower nozzle as described in any one of claims 1 to 6, wherein one end of the first channel is connected to the first air outlet, and one end of the second channel is connected to the second air outlet.

8. The vacuum cleaner according to claim 7, characterized in that, The vacuum cleaner also includes a battery, which is disposed inside the housing and provides power to the fan assembly; the housing is generally cylindrical, and the battery, the fan assembly, the air passage structure and the nozzle interface cylinder are arranged sequentially along the axial direction.

9. The vacuum cleaner according to claim 8, characterized in that, It also includes a first sealing ring and a second sealing ring; The first sealing ring is disposed at one end of the fan assembly near the second air outlet. The first sealing ring is sealed between the outer casing and the fan assembly to prevent the airflow from the second air outlet from entering the chamber where the battery is located. The second sealing ring is provided with a first through hole and a second through hole, both of which are axial through holes; the first through hole forms the port of the first channel near the fan side, and the second through hole forms the port of the second channel near the fan side; the first through hole is sealed and fitted onto the first air outlet, and the second sealing ring is connected between the air passage structure and the outer shell; The gap between the fan assembly and the housing forms an airflow channel connecting the second air outlet and the second through hole.

10. The vacuum cleaner according to claim 9, characterized in that, It also includes a first mounting shell and a second mounting shell; The first mounting shell and the second mounting shell are detachably fastened together to form a first cavity for mounting the battery, a second cavity for mounting the fan assembly, and a third cavity for mounting the air passage structure. The first sealing ring is sleeved on the outer periphery of the fan assembly, and its outer side abuts against the inner walls of the first mounting shell and the second mounting shell to seal and block the first cavity from the second cavity; The second sealing ring is connected to the outer periphery of the gas passage structure, and its outer side abuts against the inner walls of the first mounting shell and the second mounting shell to prevent airflow from leaking from the gap between the gas passage structure and the first mounting shell and the second mounting shell. The integral assembly formed by the first mounting shell and the second mounting shell being fastened together is axially assembled inside the outer shell.

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