Dust collector flat suction device capable of swinging at multiple angles

Abstract

The utility model discloses a multi-angle swinging flat sucker of a dust collector. The flat sucker comprises a suction nozzle, the lower joint is positioned at the end part of the suction nozzle; one end of the adapter is rotationally connected with the lower joint along the X axis, and a first hinge lug and a second hinge lug are arranged on the two sides, facing the Z axis, of the other end of the adapter respectively; the upper connector comprises an inner connector and an outer connector, a third hinge lug and a fourth hinge lug are arranged on the two sides of one end of the inner connector respectively, the outer connector is positioned on the inner connector in a sleeving mode, a fifth hinge lug is arranged on the side face of one end of the outer connector, the first hinge lug is rotationally connected with the third hinge lug, and the second hinge lug is rotationally connected with the fourth hinge lug and the fifth hinge lug. The hose is in butt joint with the lower connector and the inner connector. The flat suction structure of the dust collector can solve the problems that an existing flat suction structure of the dust collector is mostly designed in a fixed mode, the dust collection effect is poor when the flat suction structure faces complex use scenes, the flat suction structure is inconvenient to grab and use, the pressure on the wrist of a user is large, and the use experience feeling is poor.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust collector technical field, concretely is a kind of flat suction of multi-angle swing's dust collector. BACKGROUND

[0002] Handheld dust collector, as a kind of common household cleaning appliance, its body is small and exquisite, and it is very convenient to carry and use, and it is more suitable for cleaning smaller space.Handheld dust collector needs to be connected with dust collector flat suction to use, and dust is sucked into dust collector by dust collector flat suction.

[0003] And the fixed design is used in the docking of the structure of the existing dust collector flat suction and the air inlet of dust collector, so that the flat suction nozzle cannot be attached to the cleaning surface when facing some gaps close to wall or ground, so that the dust collection effect is poor, and in complex working environment, suction nozzle needs to contact cleaning surface at a certain angle, so that the user needs to adjust the posture of dust collector, which leads to the inconvenience of dust collector grabbing and using, and the pressure on the user's wrist is also larger, so that the use experience is poor.For example, the utility model discloses a kind of dust collector flat suction, including dust suction hose, dust suction hose is provided with suction port part in one end, the dust collector flat suction also includes the illumination component for providing illumination when dust collector works, the illumination component includes illumination lamp, the illumination lamp is arranged on suction port part, the dust suction hose is made of flexible material and has smooth inner wall.The utility model can realize the illumination in gap when cleaning gap, but there are still the defects pointed out above. UTILITARIAN CONTENT

[0004] The utility model aims at: in order to solve the fixed design of the structure of the existing dust collector flat suction, when facing complex use scene, dust collection effect is poor, and flat suction grabbing and using are inconvenient, the pressure on the user's wrist is also larger, so that the use experience is poor, and provide a kind of flat suction of multi-angle swing's dust collector.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of flat suction of multi-angle swing's dust collector, comprising:

[0006] Suction nozzle;

[0007] Lower joint, its end is positioned in the suction nozzle, and first hinged shaft is arranged on both sides thereof;

[0008] Adapter, first hinged interface is arranged on both sides of the X-axis of one end thereof, and the first hinged shaft is rotatably connected with the first hinged interface;

[0009] First hinged ear and second hinged ear are respectively arranged on both sides of the Z-axis of the other end of the adapter;

[0010] The upper joint comprises an inner joint and an outer joint, and a third hinge ear and a fourth hinge ear are arranged on both sides of one end of the inner joint;

[0011] The outer joint sleeve is arranged on the inner joint, and a fifth hinge ear is arranged on one side of the outer joint sleeve;

[0012] The first hinge ear is rotationally connected with the third hinge ear, and the second hinge ear is rotationally connected with the fourth hinge ear and the fifth hinge ear;

[0013] A hose is connected to the lower joint and the inner joint.

[0014] Further description of the above technical solution:

[0015] A second hinge hole is arranged through the first hinge ear, and a convex structure on the third hinge ear is rotationally inserted into the second hinge hole;

[0016] A third hinge hole is arranged through the second hinge ear, the fourth hinge ear is abutted on the inner end surface of the second hinge ear through an arc-shaped supporting block, and the second hinge shaft of the inner end surface of the fifth hinge ear is rotationally connected with the third hinge hole.

[0017] Further description of the above technical solution:

[0018] A threaded seat corresponding to the second hinge shaft is arranged on the outer end surface of the fourth hinge ear, and the second hinge shaft and the inner thread of the threaded seat are screw-connected and positioned.

[0019] Further description of the above technical solution:

[0020] The first hinge ear is split at the notch at the top of the outer joint, and a plurality of insertion holes are further arranged through the first hinge ear, and a hook on the inner end surface of a decorative cover is inserted into and clamped on the insertion holes;

[0021] In addition, the clamping groove at the end of the adapter is laterally clamped with the corresponding hook, and the notch is abutted with the corresponding hook.

[0022] Further description of the above technical solution:

[0023] A limiting ring is arranged on the inner end surface of the decorative cover, a bayonet is arranged on the limiting ring, a first clamping rib arranged radially on the outer end surface of the first hinge ear is abutted on the inner side of the limiting ring, and a second clamping rib arranged radially on the outer end surface of the first hinge ear is inserted into the bayonet.

[0024] Further description of the above technical solution:

[0025] The axes of the first hinge, the third hinge, the second hinge, the fourth hinge, and the fifth hinge are inclined to the axes of the adapter and the upper connector;

[0026] The second hinge lug has a notch on its side, and the fifth hinge lug is pressed against the outer end face of the second hinge lug by the notch and snapped in place;

[0027] An arc-shaped guide barrier is provided at the outer end face edge of the second hinge ear, and the guide barrier abuts against the edge of the fifth hinge ear;

[0028] The adapter and the upper connector are provided with pointed surfaces on both sides of their opposite ends.

[0029] As a further description of the above technical solution:

[0030] The surface of the upper connector is also provided with a locking buckle, and the surface of the locking buckle is provided with a locking block for engaging and positioning with the slot of the vacuum cleaner air inlet when the upper connector is inserted into the vacuum cleaner air inlet.

[0031] The locking buckle is rotatably connected to the guide seat on the surface of the inner connector via a third hinge shaft at the end.

[0032] The outer end face of the locking buckle is provided with a pressing block, and the pressing block extends from the through hole to the outer surface of the outer connector;

[0033] An elastic element is provided between the inner end face of the locking buckle and the guide seat.

[0034] As a further description of the above technical solution:

[0035] The supporting ribs on the edge of the pressing block and the outer surface of the locking buckle abut against the inner wall of the outer connector.

[0036] As a further description of the above technical solution:

[0037] The wavy or spiral protrusions on the surface of the hose are tightly inserted into or sleeved onto the recessed structures at the interfaces of the lower connector and the inner connector.

[0038] As a further description of the above technical solution:

[0039] The lower connector and the inner connector are provided with a first spherical interface, and the end of the hose is provided with a second spherical interface. The first spherical interface can be rotatably inserted into or sleeved on the second spherical interface.

[0040] The edges of the first spherical interface and / or the second spherical interface are provided with wedge-shaped surfaces.

[0041] In summary, by adopting the above technical solution, this utility model has the following advantages over the prior art:

[0042] Beneficial effects:

[0043] 1. This utility model's flat nozzle vacuum cleaner features a three-section hinged design consisting of a lower connector, an adapter, and an upper connector. This design allows for rotation along the X and Z axes, enabling multi-angle swinging and rotation of the nozzle. This accommodates adjustments to the vacuum cleaner's posture in different environments, improving ease of use and grip comfort, and achieving thorough cleaning without dead angles. During use, the relative rotation of the adapter and lower connector allows the nozzle to swing vertically for tilt adjustment. The relative rotation of the adapter and upper connector allows the nozzle to swing horizontally or at an angle to the horizontal for directional adjustment. This, combined with a comfortable grip, makes holding the vacuum cleaner easier and ensures the nozzle can reach into confined spaces and conform to the surface of cleaned objects, improving ease of use and reducing wrist pressure, thus enhancing comfort.

[0044] 2. The hinge structure at the bottom of the adapter and the upper connector adopts a multi-layer structure with lateral insertion and overlapping, which can further improve the structural strength of the main stress points of the flat suction structure and avoid tilting or offset between the hinge structures, thus affecting the rotation operation. Through the insertion of the decorative cover on the first hinge ear, the hook passes through the insertion port and abuts against the slot and notch, thereby realizing the lateral pre-tightening limit of the two hinge ears, preventing the adapter and the upper connector from shaking or shifting radially along the hinge axis when rotating, thus ensuring the stability of rotation.

[0045] 3. The rotation axis of the Z-axis rotary adjustment structure, which is formed by the hinge of the adapter and the upper connector, is inclined to the axis of the flat suction structure. This causes the adapter and the upper connector to undergo a relative flip with vertical displacement when they rotate, thereby reducing the torque and other loads applied to the hinge axis of the Z-axis rotary adjustment structure, reducing working pressure, and improving structural stability and service life.

[0046] 4. The conventional method of connecting the hose end to the flat suction shell connector has been changed to a design with two spherical interfaces that can rotate at multiple angles. This transforms most of the hose deformation caused by the rotation of the hinged structure into the relative rotation of the spherical interfaces. This improves the problems of excessive bending of the hose during the rotation of the hinged structure, which can lead to structural damage and loosening and leakage at the end connection. This extends the service life of the hose and ensures that the flat suction is leak-free and can be used stably. Attached Figure Description

[0047] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 This is a schematic diagram of the structure of a multi-angle oscillating vacuum cleaner with a flat nozzle.

[0049] Figure 2 This is a disassembly diagram of a multi-angle oscillating vacuum cleaner's flat nozzle.

[0050] Figure 3 This is a disassembled diagram of a multi-angle oscillating vacuum cleaner flat nozzle adapter and decorative cover.

[0051] Figure 4 This is a schematic diagram of a multi-angle oscillating vacuum cleaner flat nozzle adapter.

[0052] Figure 5 This is a disassembly diagram of the upper connector of a multi-angle oscillating vacuum cleaner's flat nozzle.

[0053] Figure 6 This is a schematic diagram of the inner connector of a multi-angle oscillating vacuum cleaner's flat nozzle.

[0054] Figure 7 This is a schematic diagram of the locking mechanism in the flat suction cup of a multi-angle oscillating vacuum cleaner.

[0055] Figure 8 This is a cross-sectional view of the connection node between the lower part of the flat nozzle and the hose of a multi-angle oscillating vacuum cleaner.

[0056] Legend:

[0057] 1. Suction nozzle;

[0058] 2. Lower connector; 21. First hinge shaft; 22. First spherical interface; 23. Wedge-shaped surface;

[0059] 3. Adapter; 31. First hinge interface; 32. First hinge lug; 321. Second hinge interface; 322. Insert; 323. Slot; 324. First retaining rib; 325. Second retaining rib; 33. Second hinge lug; 331. Third hinge interface; 332. Notch; 333. Guide barrier; 34. Pointed surface;

[0060] 4. Internal connector; 41. Third hinge lug; 42. Fourth hinge lug; 43. Threaded seat; 44. Arc-shaped support block;

[0061] 5. External connector; 51. Fifth hinge lug; 52. Notch; 53. Second hinge shaft; 54. Through hole;

[0062] 6. Hose; 61. Second ball joint;

[0063] 7. Decorative cover; 71. Hook; 72. Limiting ring; 73. Bayonet;

[0064] 8. Locking buckle; 81. Locking block; 82. Third hinge shaft; 83. Pressing block; 84. Elastic element; 85. Supporting rib. Detailed Implementation

[0065] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0066] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0067] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0068] In the description of the embodiments of this utility model, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0069] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0070] Example 1:

[0071] Please see Figures 1-8 This utility model provides a technical solution: a multi-angle oscillating vacuum cleaner flat suction, comprising:

[0072] Suction nozzle 1;

[0073] The lower connector 2 is positioned at the end of the suction nozzle 1, and first hinge shafts 21 are provided on both sides of it;

[0074] The adapter 3 has a first hinge interface 31 on both sides facing the X-axis at one end, and the first hinge shaft 21 is rotatably connected to the first hinge interface 31.

[0075] When using the X-axis rotation adjustment structure of the nozzle 1, the nozzle 1 can swing in the vertical plane by rotating the adapter 3 and the lower connector 2 relative to each other, thereby adjusting the tilt angle. This, combined with the vacuum cleaner grip posture suitable for the human hand, makes the vacuum cleaner gripping more effortless, and ensures that the nozzle 1 meets the requirements of reaching into narrow spaces and conforming to the surface of the object being cleaned, improving the convenience of use and reducing the pressure on the user's wrist when gripping the vacuum cleaner, thus improving the comfort of use.

[0076] The other end of the adapter 3 is provided with a first hinge lug 32 and a second hinge lug 33 on both sides facing the Z-axis.

[0077] The upper connector includes an inner connector 4 and an outer connector 5. A third hinge lug 41 and a fourth hinge lug 42 are respectively provided on both sides of one end of the inner connector 4.

[0078] The outer connector 5 is set on the inner connector 4, and a fifth hinge lug 51 is provided on one side of its end.

[0079] The first hinge lug 32 is rotatably connected to the third hinge lug 41, and the second hinge lug 33 is rotatably connected to the fourth hinge lug 42 and the fifth hinge lug 51.

[0080] When using the Z-axis rotation adjustment structure of the nozzle 1, the nozzle 1 can swing on a horizontal plane or a plane at a certain angle to the horizontal plane by rotating the adapter 3 and the upper connector. This allows for horizontal adjustment, which, combined with the vacuum cleaner grip posture suitable for the human hand, makes the vacuum cleaner gripping more effortless. It also ensures that the nozzle 1 meets the requirements of reaching into narrow spaces and conforming to the surface of the object being cleaned, improving the convenience of use and reducing the pressure on the user's wrist when gripping the vacuum cleaner, thus improving the comfort of use.

[0081] Hose 6, which connects to the lower connector 2 and the inner connector 4.

[0082] This utility model's flat nozzle vacuum cleaner features a three-section hinged design consisting of a lower connector, an adapter, and an upper connector. This design allows for rotation along the X and Z axes, enabling multi-angle swinging and rotation of the nozzle to accommodate different usage environments and improve ease of use and grip comfort, achieving thorough cleaning without dead angles. During use, the relative rotation of the adapter and lower connector allows the nozzle to swing vertically for tilt adjustment, while the relative rotation of the adapter and upper connector allows it to swing horizontally or at an angle to the horizontal for directional adjustment. This, combined with a comfortable grip, makes holding the vacuum cleaner easier and ensures the nozzle can reach into confined spaces and conform to the surface of cleaned objects, improving ease of use and reducing wrist pressure for enhanced comfort.

[0083] The first hinge ear 32 is provided with a second hinge interface 321 through it. The protrusion structure on the third hinge ear 41 is rotatably inserted into the second hinge interface 321. The second hinge ear 33 is provided with a third hinge interface 331 through it. The fourth hinge ear 42 abuts against the inner end face of the second hinge ear 33 through an arc-shaped support block 44. The second hinge shaft 53 on the inner end face of the fifth hinge ear 51 is rotatably connected to the third hinge interface 331.

[0084] In this embodiment, the Z-axis rotation adjustment structure, namely the hinge structure between the adapter 3 and the upper connector, adopts a multi-layer structure with lateral insertion and overlapping at the hinge at the bottom. This can further improve the structural strength at the main stress points of the flat suction structure and prevent tilting or offset between the hinge structures, which would affect the rotation operation.

[0085] The outer end face of the fourth hinge lug 42 is provided with a threaded seat 43 corresponding to the second hinge shaft 53. The internal threads of the second hinge shaft 53 and the threaded seat 43 are screwed and positioned with bolts. The above-mentioned multi-layer structure with lateral insertion and stacking is axially positioned by bolts on the outer fourth hinge lug 42 and fifth hinge lug 51, thereby ensuring the axial clamping stability of the second hinge lug 33. This ensures that there is no axial wobbling or displacement between the structures when the adapter 3 and the upper connector rotate relative to each other, thereby further ensuring the unobstructed and smooth rotation and orientation adjustment of the adapter 3 and the upper connector.

[0086] The manufacturing process of a multi-angle oscillating vacuum cleaner flat nozzle in this embodiment includes: during assembly, the hose 6 is first connected to the interface at the opposite ends of the lower connector 2 and the inner connector 4, ensuring the sealing of the connection to avoid air leakage during use; the adapter 3 is pressed down on the lower connector 2, so that the first hinge shaft 21 is engaged with the first hinge interface 31, and the smoothness of rotation is tested; the inner connector 4 is tilted and pressed against the adapter 3, so that the third hinge ear 41 is fitted onto the inner end face of the first hinge ear 32, and the protruding structure is inserted into the second hinge interface 321; then, the inner connector 4 and the adapter 3 are rotated relative to each other, so that the third hinge ear 41 abuts against the inner side of the second hinge ear 33; the positioning outer connector 5 is sleeved on the inner connector 4, so that the second hinge shaft 53 of the fifth hinge ear 51 is inserted into the third hinge interface 331, and the structure is positioned and the component is shaped by bolts, and the smoothness of rotation is tested. The above installation steps involve first assembling adapter 3 with inner connector 4, and then assembling and positioning both with outer connector 5. Alternatively, the inner connector 4 and outer connector 5 can be assembled first, followed by adapter 3, and finally, the inner connector 4 and outer connector 5 are positioned using bolts. The entire installation operation is labor-saving, convenient, and simple, meeting the requirements for large-scale, high-efficiency production, assembly, and use of vacuum cleaner crevice tools.

[0087] In use, by rotating the adapter 3 and the lower connector 2 relative to each other, the nozzle 1 can swing in the vertical plane to adjust the tilt angle. By rotating the adapter 3 and the upper connector relative to each other, the nozzle 1 can swing in the horizontal plane or in a plane at a certain angle to the horizontal plane to adjust the horizontal orientation. This, combined with the vacuum cleaner grip posture suitable for the human hand, makes the vacuum cleaner gripping more effortless, and ensures that the nozzle 1 meets the requirements of reaching into narrow spaces and conforming to the surface of the object being cleaned, improving the convenience of use and reducing the pressure on the user's wrist when gripping the vacuum cleaner, thus improving the comfort of use.

[0088] Example 2:

[0089] Please see Figures 2-4Based on the above embodiment one, preferably, the first hinge ear 32 is assembled at the notch 52 at the top of the outer connector 5, and a plurality of insertion ports 322 are also provided therethrough. The hook 71 on the inner end face of the decorative cover 7 is inserted into and engaged with the insertion port 322. The slot 323 at the end of the adapter 3 is engaged laterally with the corresponding hook 71, and the notch 52 abuts against the corresponding hook 71.

[0090] In this embodiment, the main bearing point of the flat suction structure is reinforced relative to the other hinge point of the second hinge ear 33 and the fourth hinge ear 42 and the fifth hinge ear 51, namely the hinge structure of the first hinge ear 32 and the third hinge ear 41. By inserting the decorative cover 7 into the first hinge ear 32, the hook 71 passes through the insertion port 322 and abuts against the slot 323 and the notch 52, thereby achieving lateral pre-tightening and limiting of the two hinge ears, avoiding the shaking and displacement along the hinge axis when the adapter 3 and the upper connector rotate, thus ensuring the stability of rotation.

[0091] A limiting ring 72 is provided on the inner end face of the decorative cover 7, and a locking slot 73 is provided on the limiting ring 72. A first locking rib 324, which is radially arranged on the outer end face of the first hinge ear 32, abuts against the inner side of the limiting ring 72, and a second locking rib 325, which is radially arranged on the outer end face of the first hinge ear 32, is inserted into the locking slot 73. The above two locking ribs can further improve the assembly strength and assembly convenience of the decorative cover 7 on the first hinge ear 32.

[0092] The assembly process of a multi-angle swing vacuum cleaner flat nozzle in this embodiment includes: after the adapter 3, inner connector 4, and outer connector 5 are assembled and connected, the hook 71, the limiting ring 72, and the locking slot 73 are aligned with the insertion port 322, the first locking rib 324, and the second locking rib 325, respectively. Then, the decorative cover 7 is pressed on the first hinge ear 32, thereby realizing the insertion and positioning of the above structure. At the same time, the corresponding hook 71 abuts against the locking groove 323 and the notch 52.

[0093] Example 3:

[0094] Please see Figure 3 Based on the above embodiment one, preferably, the axes of the first hinge ear 32, the third hinge ear 41, the second hinge ear 33, the fourth hinge ear 42, and the fifth hinge ear 51 are inclined to the axes of the adapter 3 and the upper connector. This design causes the rotation axis of the Z-axis rotation adjustment structure, which is formed by the hinge of the adapter 3 and the upper connector, to be inclined to the axis of the flat suction structure. This results in a relative folding with vertical displacement when the adapter 3 and the upper connector rotate, thereby reducing the torque and other loads applied to the hinge axis of the Z-axis rotation adjustment structure, reducing working pressure, and improving structural stability and service life.

[0095] The second hinge lug 33 has a notch 332 on its side. The fifth hinge lug 51 is pressed laterally against the outer end face of the second hinge lug 33 by the notch 332 and is engaged. An arc-shaped guide barrier 333 is provided at the edge of the outer end face of the second hinge lug 33. The guide barrier 333 abuts against the edge of the fifth hinge lug 51. Pointed surfaces 34 are provided on both sides of the opposite ends of the adapter 3 and the upper connector. The notch 332 makes the alignment and lateral assembly of the hinge structure more convenient. The guide barrier 333 can guide and limit the fifth hinge lug 51 to further improve the structural strength and stability of the hinge structure. The pointed surfaces 34 are mainly used for structural avoidance and limiting the rotation range when the adapter 3 and the upper connector rotate, avoiding structural collisions and interference, and preventing the adapter 3 and the upper connector from rotating too much, which would reduce the structural stability.

[0096] Example 4:

[0097] Please see Figure 2 , 7 Based on the above embodiment one, preferably, the surface of the upper connector is further provided with a locking buckle 8. The surface of the locking buckle 8 is provided with a locking block 81 for engaging and positioning with the slot of the vacuum cleaner inlet when the upper connector is inserted into the vacuum cleaner inlet. The locking buckle 8 is rotatably connected to the guide seat on the surface of the inner connector 4 through the third hinge shaft 82 at the end. The outer end face of the locking buckle 8 is provided with a pressing block 83. The pressing block 83 extends from the through hole 54 to the outer surface of the outer connector 5. An elastic element 84 is provided between the inner end face of the locking buckle 8 and the guide seat.

[0098] The supporting ribs 85 on the edge of the pressing block 83 and the outer surface of the locking buckle 8 abut against the inner wall of the outer connector 5 to reduce the impact force when the pressure on the pressing block 83 is removed and the locking buckle 8 is flipped and reset towards the outer connector 5 by the reset elastic force of the elastic element 84, thereby improving the service life of the structure and avoiding structural damage such as cracking caused by impact during use.

[0099] The assembly process of the multi-angle swing vacuum cleaner flat nozzle and the vacuum cleaner air inlet in this embodiment includes: pressing the pressing block 83 so that the locking buckle 8 is pressed into the guide seat, then inserting the upper connector into the air inlet, releasing the pressing block 83 so that the locking buckle 8 rotates and resets along the third hinge axis 82 under the reset elastic force of the elastic member 84, the slot of the vacuum cleaner air inlet is engaged and positioned on the locking block 81, and the pressing block 83 is inserted into the through hole 54 to achieve structural positioning.

[0100] Example 5:

[0101] Please see Figure 1 , 2Based on the above embodiment one, preferably, the wavy or spiral protrusion structure on the surface of the hose 6 is tightly inserted into or sleeved on the recessed structure on the interface of the lower connector 2 and the inner connector 4, so as to improve the tightness of the interface between the hose 6 and the lower connector 2 and the inner connector 4 and avoid air leakage.

[0102] Example 6:

[0103] Please see Figure 8 Based on the above embodiment one, preferably, a first spherical interface 22 is provided in the lower connector 2 and the inner connector 4, and a second spherical interface 61 is provided at the end of the hose 6. The first spherical interface 22 is rotatably inserted into or sleeved on the second spherical interface 61, and a wedge-shaped surface 23 is provided on the edge of the first spherical interface 22 and / or the second spherical interface 61. In order to avoid the problem of structural damage caused by excessive bending of the hose when the hinge structure rotates and the problem of loosening and leakage at the end connection, the conventional method of inserting the hose end into the flat suction shell connector is changed to a design in which the two spherical interfaces can rotate at multiple angles. This converts most of the deformation of the hose when the hinge structure rotates into the relative rotation of the spherical interfaces, thereby improving the problems of structural damage caused by excessive bending of the hose when the hinge structure rotates and the problem of loosening and leakage at the end connection, improving the service life of the hose, and ensuring the airless and stable use of the flat suction.

[0104] In summary, due to the adoption of the above technical solution, the multi-angle oscillating flat suction vacuum cleaner of this embodiment has the following advantages compared with the prior art:

[0105] 1. This utility model's flat nozzle vacuum cleaner features a three-section hinged design consisting of a lower connector, an adapter, and an upper connector. This design allows for rotation along the X and Z axes, enabling multi-angle swinging and rotation of the nozzle. This accommodates adjustments to the vacuum cleaner's posture in different environments, improving ease of use and grip comfort, and achieving thorough cleaning without dead angles. During use, the relative rotation of the adapter and lower connector allows the nozzle to swing vertically for tilt adjustment. The relative rotation of the adapter and upper connector allows the nozzle to swing horizontally or at an angle to the horizontal for directional adjustment. This, combined with a comfortable grip, makes holding the vacuum cleaner easier and ensures the nozzle can reach into confined spaces and conform to the surface of cleaned objects, improving ease of use and reducing wrist pressure, thus enhancing comfort.

[0106] 2. The hinge structure at the bottom of the adapter and the upper connector adopts a multi-layer structure with lateral insertion and overlapping, which can further improve the structural strength of the main stress points of the flat suction structure and avoid tilting or offset between the hinge structures, thus affecting the rotation operation. Through the insertion of the decorative cover on the first hinge ear, the hook passes through the insertion port and abuts against the slot and notch, thereby realizing the lateral pre-tightening limit of the two hinge ears, preventing the adapter and the upper connector from shaking or shifting radially along the hinge axis when rotating, thus ensuring the stability of rotation.

[0107] 3. The rotation axis of the Z-axis rotary adjustment structure, which is formed by the hinge of the adapter and the upper connector, is inclined to the axis of the flat suction structure. This causes the adapter and the upper connector to undergo a relative flip with vertical displacement when they rotate, thereby reducing the torque and other loads applied to the hinge axis of the Z-axis rotary adjustment structure, reducing working pressure, and improving structural stability and service life.

[0108] 4. The conventional method of connecting the hose end to the flat suction shell connector has been changed to a design with two spherical interfaces that can rotate at multiple angles. This transforms most of the hose deformation caused by the rotation of the hinged structure into the relative rotation of the spherical interfaces. This improves the problems of excessive bending of the hose during the rotation of the hinged structure, which can lead to structural damage and loosening and leakage at the end connection. This extends the service life of the hose and ensures that the flat suction is leak-free and can be used stably.

[0109] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-angle oscillating flat suction cleaner characterized by, It includes: a suction nozzle; a lower joint positioned at the end of the suction nozzle, with a first hinged shaft on both sides; an adapter with a first hinged interface on both sides of the X-axis end, the first hinged shaft and the first hinged interface being rotationally connected, and a first hinged ear and a second hinged ear on both sides of the Z-axis end; an upper joint including an inner joint and an outer joint, the inner joint having a third hinged ear and a fourth hinged ear on both sides of one end, and the outer joint being sleeved and positioned on the inner joint, with a fifth hinged ear on one side of the end surface, the first hinged ear and the third hinged ear being rotationally connected, the second hinged ear and the fourth hinged ear, and the fifth hinged ear being rotationally connected; a hose connected to the lower joint and the inner joint.

2. A multi-angle oscillating flat nozzle for a vacuum cleaner as defined in claim 1, wherein A second hinged interface is provided through the first hinged ear, the protruding structure on the third hinged ear is rotationally inserted into the second hinged interface, a third hinged interface is provided through the second hinged ear, the fourth hinged ear is abutted on the inner end surface of the second hinged ear by an arc-shaped support block, and the second hinged shaft of the inner end surface of the fifth hinged ear is rotationally connected with the third hinged interface.

3. A multi-angle oscillating flat nozzle for a vacuum cleaner as defined in claim 2, wherein, The outer end surface of the fourth hinged ear is provided with a threaded seat corresponding to the second hinged shaft, and the inner thread of the second hinged shaft and the threaded seat is screwed and positioned with a bolt.

4. A multi-angle oscillating flat nozzle for a vacuum cleaner as defined in claim 1, wherein The first hinged ear is split in the notch at the top of the outer joint, and a plurality of sockets are further provided through the first hinged ear, a hook on the inner end surface of a decorative cover is inserted into and clamped in the socket, a clamping groove at the end of the adapter is laterally clamped with a corresponding hook, and the notch is abutted with a corresponding hook.

5. A multi-angle oscillating flat nozzle for a vacuum cleaner as defined in claim 4, wherein, The inner end surface of the decorative cover is provided with a limiting ring, the limiting ring is provided with a clamping hole, a first clamping rib radially arranged on the outer end surface of the first hinged ear is abutted on the inner side of the limiting ring, and a second clamping rib radially arranged on the outer end surface of the first hinged ear is inserted into the clamping hole.

6. A multi-angle oscillating flat nozzle for a vacuum cleaner as defined in claim 1, wherein The axes of the first hinged ear, the third hinged ear, the second hinged ear, the fourth hinged ear, and the fifth hinged ear are inclined to the axes of the adapter and the upper joint, the second hinged ear is laterally provided with a gap, the fifth hinged ear is laterally pressed to the outer end surface of the second hinged ear by the gap and clamped, the outer end surface of the second hinged ear is provided with an arc-shaped guide fence at the edge, the guide fence is abutted on the edge of the fifth hinged ear, and the opposite ends of the adapter and the upper joint are provided with sharp surfaces.

7. A multi-angle oscillating flat nozzle for a vacuum cleaner as defined in claim 1, wherein The surface of the upper joint is further provided with a locking buckle, the surface of the locking buckle is provided with a clamping block for clamping and positioning with a clamping groove of the air inlet of the dust collector when the upper joint is inserted into the air inlet of the dust collector, the locking buckle is rotationally connected with a third hinged shaft at the end in a guide seat on the surface of the inner joint, the outer end surface of the locking buckle is provided with a pressing block, the pressing block extends to the outer surface of the outer joint through a through hole, and an elastic member is arranged between the inner end surface of the locking buckle and the guide seat.

8. A multi-angle oscillating flat nozzle for a vacuum cleaner as defined in claim 7, wherein, The edge of the pressing block and the supporting convex rib on the outer surface of the locking buckle are abutted on the inner wall of the outer joint.

9. A multi-angle oscillating flat nozzle for a vacuum cleaner as defined in claim 1, wherein, The wavy or spiral protruding structure on the surface of the hose is tightly inserted or sleeved on the recessed structure on the interface of the lower joint and the inner joint.

10. A multi-angle oscillating flat nozzle for a vacuum cleaner as defined in claim 1, wherein, The lower joint and the inner joint are provided with a first spherical interface, the end of the hose is provided with a second spherical interface, the first spherical interface is rotatably inserted or sleeved on the second spherical interface, and a wedge surface is arranged on the edge of the first spherical interface or / and the second spherical interface.

Images