Dust collection pipe supporting structure of dust collector

Abstract

The utility model discloses a dust collection pipe supporting structure of a dust collector, which comprises a sleeve, a dust collection pipe is supported and positioned in the sleeve, the bottom end of the sleeve is connected with a floor brush connecting piece and a floor brush through a first pipe fitting, and the top of the sleeve is connected with a dust collector sub-machine through a second pipe fitting; the dust collector support comprises a main rod, moving wheels and a connecting rod. When the dust collector sub-machine is held by a hand to horizontally and laterally pull, the sleeve drives the dust collector bracket to rotate around the floor brush to steer; when the dust collector sub-machine is pressed downwards, the dust collector sub-machine rotates and moves downwards with the moving wheels as fulcrums, and the floor brush is lifted. According to the design, the vertical dust collector can rotate and steer on the horizontal plane and can clean the uneven cleaning plate face and the blanket face which are obviously changed in height more conveniently, the hand fatigue feeling is reduced, and cleaning of a dust collection pipe, a rolling brush in a floor brush and a filtering structure in a dust collector sub-machine can be achieved; the adaptability to users with different heights, body types and using habits is high.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum cleaners, in particular to a dust suction pipe supporting structure of a vacuum cleaner. Background Art

[0002] Common upright vacuum cleaners generally include a floor brush, a vacuum cleaner sub-unit, and a vacuum hose that connects the two main functional components and achieves airflow communication. The vacuum hose needs to ensure a stable connection with the floor brush and the vacuum cleaner sub-unit. When moving the vacuum cleaner, it is generally operated by holding the vacuum hose or the vacuum cleaner sub-unit. In actual use, there are the following problems:

[0003] ① When turning the floor brush of a vacuum cleaner, common vacuum cleaners can only be turned by pulling the handle and pushing the floor brush with hands and feet. The floor brush and its bottom moving wheels rub against the ground to turn. It is impossible to find a suitable rotation fulcrum and do not know how to exert force. During the use of the vacuum cleaner, the user's hand strength is not only required to move the vacuum cleaner horizontally, but also to support the weight of the sub-machine and the tube to push the floor brush forward, which makes the hands tired.

[0004] ② When the upright vacuum cleaner is cleaning an uneven cleaning surface or a carpet surface with a significant height change, when pushing the floor brush 6 forward, it is inconvenient to be unable to climb over the sudden change in the height of the ground and continue to move forward. After the vacuum cleaner motor is started, the floor brush will be tightly adsorbed on the cleaning surface. Especially when the friction coefficient of the cleaning surface is large and there are velvet objects that seriously affect the movement of the vacuum cleaner's moving wheels, the vacuum cleaner floor brush is difficult to move, and it is necessary to manually hold the floor brush and the connecting rod of the vacuum cleaner sub-machine to lift the vacuum cleaner as a whole, making the operation of the upright vacuum cleaner very difficult and with great resistance.

[0005] ③ The common upright vacuum cleaner floor brush and vacuum cleaner sub-unit connection structure, as well as the airflow guide structure are long and have a small tube diameter, which makes cleaning inconvenient. In addition, other parts that require frequent cleaning, such as the roller brush inside the floor brush and the filter structure inside the vacuum cleaner sub-unit, also need to be tediously disassembled and then cleaned, resulting in a poor user experience.

[0006] ④ Upright vacuum cleaners cannot adapt to the usage habits of users of different heights and body shapes, and their audience range is relatively narrow. Utility Model Content

[0007] The utility model aims to provide a vacuum cleaner tube support structure to solve the problems of inconvenience in holding and horizontally turning an upright vacuum cleaner by a user, strong hand fatigue, and inconvenience in cleaning on uneven cleaning plate surfaces and carpet surfaces with significant height changes.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a dust suction pipe support structure of a vacuum cleaner, comprising:

[0009] A sleeve, with a dust suction pipe supported and positioned inside, a floor brush connecting piece connected to the bottom end through a first pipe fitting, the floor brush connecting piece is rotatably connected to the floor brush, a hose with ends connected to the dust suction pipe and the flow guide structure in the floor brush is arranged inside the floor brush connecting piece, and a vacuum cleaner sub-machine is connected to the top of the sleeve through a second pipe fitting;

[0010] The corresponding vacuum cleaner is an upright vacuum cleaner, and the floor brush is a roller brush;

[0011] A vacuum cleaner bracket, comprising a main rod, a moving wheel located at the bottom of the main rod, and a connecting rod located at the top of the main rod and plugged into the sleeve;

[0012] When the vacuum cleaner sub-machine is held and pulled horizontally sideways, the sleeve drives the vacuum cleaner bracket to rotate around the floor brush to turn;

[0013] When the vacuum cleaner sub-machine is pressed downward, the vacuum cleaner sub-machine rotates downward with the moving wheel as a fulcrum to lift the floor brush.

[0014] As a further description of the above technical solution:

[0015] The inner cavity inside the sleeve is sleeved on the dust suction pipe, and a plurality of first limiting rings distributed axially are arranged on the side thereof.

[0016] As a further description of the above technical solution:

[0017] A first socket connected to the inner cavity is provided on the side of the sleeve, and a stepped plug-in is provided at the end of the connecting rod, and the stepped plug-in is inserted into and clamped on the first socket;

[0018] An arc-shaped groove is arranged on the top of the stepped plug-in, the arc-shaped groove abuts against the side surface of the dust suction pipe, and a buffer cushion layer is arranged between the arc-shaped groove and the dust suction pipe.

[0019] As a further description of the above technical solution:

[0020] A connecting pipe is arranged at the bottom of the connecting rod, the connecting pipe is sleeved on the top of the main rod, and a spring is arranged between the inner side of the connecting pipe and the main rod;

[0021] A locking piece is inserted into the bottom of the connecting pipe, and the locking piece abuts against the main rod.

[0022] As a further description of the above technical solution:

[0023] The moving wheel is a universal wheel, comprising a first connecting member, a second connecting member and a roller arranged from top to bottom, wherein the second connecting member is connected to the roller via a rotating shaft;

[0024] At least one of the first connecting member and the main rod, and the first connecting member and the second connecting member is connected to each other in a rotational manner along their axes;

[0025] The thickness of the roller gradually decreases to zero from the center to the edge and is in an outwardly convex shape.

[0026] As a further description of the above technical solution:

[0027] A second socket is provided on the side of the dust suction pipe, and the top end of the connecting rod is inserted into the second socket and extends into the guide cavity of the dust suction pipe;

[0028] A sealing ring is provided at the connection between the connecting rod and the second socket;

[0029] A cleaning mechanism for cleaning the inner wall of the dust suction pipe is arranged inside the connecting rod.

[0030] As a further description of the above technical solution:

[0031] The cleaning mechanism is arranged in the mounting groove of the connecting rod, and includes a fan arranged in the middle section of the mounting groove;

[0032] The installation slot is provided with an air outlet in the downwind direction of the fan, and a filter screen is provided on the air outlet.

[0033] As a further description of the above technical solution:

[0034] The installation groove is a T-shaped groove body, and the second suction port and the first suction port are respectively arranged on both sides of the top facing the air inlet and outlet ends of the guide cavity;

[0035] At least two third suction ports extend outwardly from the top surface of the mounting groove;

[0036] The first suction port, the second suction port and the third suction port are hingedly provided with sealing plates on the inner sides;

[0037] The outer side of the sealing plate abuts against the inner surface of the connecting rod, and the sealing plates on the two third suction ports are turned over in opposite directions.

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

[0039] The ends of the first pipe and the second pipe are both inserted into the sleeve through a first inserting tube;

[0040] The other ends of the floor brush connector and the second pipe are respectively inserted into the first pipe and the vacuum cleaner sub-unit through a second insert pipe;

[0041] The first insert tube is provided with external convex ribs and internal concave guide grooves, and the inner and outer sides of the first insert tube are respectively sleeved and penetrated by the sleeve and the dust suction tube;

[0042] The sleeve is positioned on the first insertion tube through the guide notch and the bayonet at the end;

[0043] The second inserting tube cooperates with a plurality of inserting ribs arranged on the outside to perform multi-layer embedded insertion and positioning with the corresponding structure;

[0044] The floor brush connecting member and the second pipe member are provided with a button via a hinge frame;

[0045] The clamping block at one end of the inner side of the button is clamped on the clamping slot of the corresponding structure and a preload spring is arranged at the other end.

[0046] As a further description of the above technical solution:

[0047] The center of gravity of the vacuum cleaner is located below the insertion point of the sleeve and the vacuum cleaner bracket on the sleeve;

[0048] A mounting opening is arranged at the rear end of the floor brush, and a hinged interface is arranged on the side of the mounting opening;

[0049] A multi-layer annular plug-in structure is provided at the bottom of the floor brush connecting member, and the plug-in structure is inserted into the hinge port and embedded in the multi-layer annular sleeve structure assembled in the floor brush;

[0050] The second limiting ring on the outer side of the plug-in structure is pressed into the hinge port and abuts against the inner side of the hinge port;

[0051] A separation mechanism is provided below the handle frame of the vacuum cleaner sub-machine, and the separation mechanism is provided with a dust cup, an engine located in the shell, a main unit and a battery pack from bottom to top;

[0052] The engine is positioned in the housing through a base;

[0053] An L-shaped handle is arranged on the handle frame;

[0054] The two side surfaces of the L-shaped handle are provided with arc-shaped protrusion structures;

[0055] A smooth layer is provided on the contact surfaces of the plug-in structure, the second limiting ring, the sleeve structure and the hinge interface.

[0056] In summary, due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0057] 1. The dust suction pipe support structure of the vacuum cleaner can support and shape the dust suction pipe used for structural connection between the floor brush and the vacuum cleaner sub-machine and dust-laden airflow conduction, thereby ensuring the stable and firm connection of the two main functional components of the vacuum cleaner, smooth and efficient dust-laden airflow conduction, and no suction loss. It is also convenient for users to hold the component, so as to efficiently, stably and conveniently perform routine operations such as moving, assembling, disassembling, and maintaining the vacuum cleaner. An auxiliary movable vacuum cleaner bracket is added under the sleeve, so that the weight of the vacuum cleaner sub-unit and the vacuum cleaner tube is transferred to the vacuum cleaner bracket. During use, the hand only needs to hold the vacuum cleaner sub-unit and pull it in the horizontal direction or the direction that is convenient for the user to operate. The bottom of the vacuum cleaner bracket is used as the horizontal rotation fulcrum to change the direction, and there is no need to bear the weight of the vacuum cleaner sub-unit and the vacuum cleaner tube, which makes it easier to use. Through the principle of labor-saving lever, it is convenient to lift the floor brush when cleaning uneven cleaning boards and carpet surfaces with significant height changes, and move the vacuum cleaner to an area that is easy to move in coordination with the movement of the vacuum cleaner, so as to clean the cleaning surface in all directions. The center of gravity of the vacuum cleaner is located below the joint between the sleeve and the vacuum cleaner bracket on the sleeve, so that the center of gravity of the vacuum cleaner is within the range of the vacuum cleaner support structure during use, avoiding the problem of excessive torque of the vacuum cleaner, which causes inconvenience for the user to operate and unstable movement of the vacuum cleaner.

[0058] 2. Improve the connection structure between the vacuum cleaner support structure and other parts of the vacuum cleaner, and extend the top of the vacuum cleaner support structure directly into the dust collection tube. On the basis of not affecting its suction and lossless wind guiding function, the dust and impurities remaining on the inner wall of the dust collection tube can be cleaned, ensuring the stability of the structure's diversion effect and increasing its service life. When in use, the fan switch is pressed to form a negative pressure in the installation groove, the sealing plate flips, and the suction ports are opened. The airflow formed by the pressure difference impacts the inner wall of the dust suction tube, causing it to desorb on the inner surface of the dust suction tube, and pass through the suction port and the installation groove, and is intercepted by the filter on the exhaust port, thereby realizing gas-solid separation and clean exhaust. The two-way airflow in the direction of the floor brush and the vacuum cleaner sub-machine formed by the first suction port and the second suction port, combined with the radially distributed multi-layer airflow on the dust suction tube formed by the third suction port, can achieve full coverage of the airflow on the inner wall of the dust suction tube. The sealing plate design that can only be flipped inward does not affect the internal flow guidance of the vacuum cleaner when the vacuum cleaner is collecting and separating dust. The above operation can be used in all assembly situations where the sleeve is removed or installed on the vacuum cleaner. When assembled on the vacuum cleaner, the floor brush and the vacuum cleaner sub-machine can also be cleaned to a certain extent, the roller brush can be adsorbed, and the filter structure in the dust cup can be backwashed, thereby reducing the cleaning and maintenance frequency of the filter structure and improving the filtration efficiency. A detachable shell is arranged outside the installation groove at the filter screen, the air outlet and the top end of the connecting rod to facilitate the cleaning and maintenance of the cleaning mechanism and improve the cleaning efficiency.

[0059] 3. The design of the elastic sleeve connection between the connecting rod and the main rod and the bolts makes the vacuum tube support structure have buffering and movable functions. Compared with the fixed structure, it can reduce the energy of the vibration generated by the floor brush and the vacuum cleaner sub-machine when it is running and transmitted to the ground and the user's arm, reduce the fatigue of the user's arm, and on the basis of supporting the vacuum cleaner, it is convenient for users of different heights and body shapes to adjust the height of the vacuum cleaner equipped with the support structure by themselves; for users who require stable and shake-free operation of the vacuum cleaner and usage habits, the support structure can also be shaped with bolts or pins, so that the support structure can be combined with the vacuum cleaner to achieve a variety of usage modes, thereby increasing the user audience of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0061] Figure 1 The cross-sectional structure diagram of a vacuum cleaner dust pipe support structure after the dust pipe is assembled at the main viewing angle in the first and second embodiments.

[0062] Figure 2 The schematic diagram is a cross-sectional structure diagram of a dust suction pipe support structure of a vacuum cleaner after the dust suction pipe is assembled at the main viewing angle in the third embodiment.

[0063] Figure 3 A dust suction pipe supporting structure of a vacuum cleaner is provided with a dust suction pipe after the dust suction pipe is assembled in the third embodiment. Figure 2 Enlarged view of point A in the middle.

[0064] Figure 4 The present invention is a structural schematic diagram of a vacuum cleaner when a dust suction pipe supporting structure is equipped with a dust suction pipe and assembled on a main structure of the vacuum cleaner.

[0065] Figure 5 The invention discloses an exploded view of a dust suction pipe supporting structure of a vacuum cleaner when the dust suction pipe is assembled on the main structure of the vacuum cleaner.

[0066] Figure 6 The present invention is a structural schematic diagram of a second pipe component on a main structure of a vacuum cleaner corresponding to a vacuum pipe support structure of the vacuum cleaner.

[0067] Figure 7 The present invention is an exploded view of a floor brush and a floor brush connector on a main structure of a vacuum cleaner corresponding to a dust pipe support structure of the vacuum cleaner.

[0068] Figure 8The invention is an exploded view of a vacuum cleaner sub-machine on a vacuum cleaner main structure corresponding to a vacuum cleaner pipe support structure of the vacuum cleaner.

[0069] Legend:

[0070] 1. Sleeve; 11. Inner cavity; 12. First limiting ring; 13. First socket; 14. Guide notch; 15. Bayonet; 2. Vacuum cleaner bracket; 21. Main rod; 22. Moving wheel; 221. First connecting piece; 222. Second connecting piece; 223. Roller; 224. Rotating shaft; 23. Connecting rod; 231. Connecting pipe; 232. Spring; 24. Stepped plug-in; 241. Sealing ring; 242. Mounting groove; 243. First suction port; 244. Second suction port; 245. Third suction port; 246. Closing plate; 247. Exhaust port; 25. Fan; 3. Vacuum pipe; 31. Diversion Cavity; 32, second socket; 4, first pipe fitting; 5, floor brush connector; 51, hose; 52, plug-in structure; 53, second limiting ring; 6, floor brush; 61, installation port; 62, flow guide structure; 63, hinge joint; 7, second pipe fitting; 71, first insert pipe; 711, outer convex rib; 712, inner concave guide groove; 72, second insert pipe; 73, insert rib; 74, button; 75, hinged frame; 8, vacuum cleaner sub-unit; 80, card slot; 81, dust cup; 82, base; 83, engine; 84, switchboard; 85, battery pack; 86, shell; 87, L-shaped handle; 871, arc-shaped raised structure. DETAILED DESCRIPTION

[0071] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0072] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0073] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0074] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0075] Embodiment 1:

[0076] See also Figure 1-8 The utility model provides a technical solution: a dust suction pipe support structure of a vacuum cleaner, comprising:

[0077] The casing 1 has a dust suction pipe 3 supported and positioned inside, and the bottom end is connected to a floor brush connector 5 through a first pipe 4, and the floor brush connector 5 is rotatably connected to a floor brush 6. The floor brush connector 5 is provided with a hose 51 whose ends are respectively connected to the dust suction pipe 3 and the flow guide structure 62 in the floor brush 6, and the top of the casing 1 is connected to a vacuum cleaner sub-machine 8 through a second pipe 7;

[0078] In this embodiment, the corresponding vacuum cleaner is an upright vacuum cleaner, and the floor brush 6 is a roller brush;

[0079] The vacuum cleaner bracket 2 includes a main rod 21 , a moving wheel 22 located at the bottom of the main rod 21 , and a connecting rod 23 located at the top of the main rod 21 and plugged into the sleeve 1 .

[0080] The dust suction pipe support structure of the vacuum cleaner can support and shape the dust suction pipe 3 used for structural connection between the floor brush 6 and the vacuum cleaner sub-unit 8 and for conducting the dust-laden airflow, thereby ensuring a stable and firm connection between the two main functional components of the vacuum cleaner, smooth and efficient conduction of the dust-laden airflow, and no loss of suction force. It is also convenient for users to hold the component in their hands, so as to efficiently, stably and conveniently perform routine operations such as moving, assembling, disassembling, and maintaining the vacuum cleaner.

[0081] In addition to the above basic functions, this structure has greatly optimized and improved the usage problems reported by daily users that upright vacuum cleaners are difficult to move and turn. When turning the floor brush of a vacuum cleaner, common vacuum cleaners can only be turned by pulling the handle and pushing the floor brush with hands and feet. The floor brush and its bottom moving wheels are steered by friction with the ground. It is impossible to find a suitable rotation fulcrum and do not know how to apply force. During the use of the vacuum cleaner, the user's hand strength is not only required to move the vacuum cleaner horizontally, but also to support the weight of the sub-machine and the tube to push the floor brush forward, which makes the hands tired.

[0082] On the basis of positioning and shaping the dust suction tube 3 on the sleeve 1 and connecting the floor brush 6 and the vacuum cleaner sub-unit 8, an auxiliary movable vacuum cleaner bracket 2 is added under the sleeve 1, so that the weight of the vacuum cleaner sub-unit 8 and the dust suction tube 3 can be transferred to the vacuum cleaner bracket 2. During use, the hand only needs to hold the vacuum cleaner sub-unit 8 and pull it in the horizontal direction or the direction convenient for the user. The bottom of the vacuum cleaner bracket 2 is used as the horizontal rotation fulcrum to change the direction, and there is no need to bear the weight of the vacuum cleaner sub-unit 8 and the dust suction tube 3, which is easier to use.

[0083] In addition, the above design also improves the problem that when the upright vacuum cleaner is cleaning an uneven cleaning plate surface or a carpet surface with a significant height change, when the floor brush 6 is pushed forward, it is inconvenient to climb over and continue to move forward due to the sudden change in the height of the ground, and after the vacuum cleaner motor is started, the floor brush will be tightly adsorbed on the cleaning surface, especially when the friction coefficient of the cleaning surface is large and there are velvet-like objects that seriously affect the movement of the vacuum cleaner's moving wheels, the vacuum cleaner floor brush is difficult to move, and it is necessary to manually hold the floor brush and the connecting rod of the vacuum cleaner sub-machine to lift the vacuum cleaner as a whole, making the upright vacuum cleaner very difficult to operate and causing great resistance.

[0084] When in use, the handheld vacuum cleaner sub-machine 8 or the upper end of the sleeve 1 is pressed down, that is, the bottom of the vacuum cleaner bracket 2 can be used as a vertical rotation fulcrum, and through the principle of a labor-saving lever, the floor brush 6 at the other end of the sleeve 1 is lifted up and leaves the ground. By continuing to push the vacuum cleaner, the moving wheels 22 are used as a moving method to move the vacuum cleaner outside the difficult-to-move area, and the cleaning surface is cleaned in all directions.

[0085] In addition, the added vacuum cleaner bracket 2 is detachable, which is convenient for users to choose, thereby increasing the applicable scope of the vacuum cleaner and supporting structure products and improving user needs.

[0086] For the above-mentioned daily use problems of vacuum cleaners, a vacuum cleaner equipped with the present support structure can significantly improve the above problems in actual use. The specific working principle is as follows:

[0087] When the vacuum cleaner sub-machine 8 is held and pulled horizontally sideways, the sleeve 1 drives the vacuum cleaner bracket 2 to rotate around the floor brush 6 to turn;

[0088] When the vacuum cleaner sub-unit 8 is pressed down, the vacuum cleaner sub-unit 8 rotates and moves downward with the moving wheel 22 as a fulcrum, thereby lifting the floor brush 6 .

[0089] The inner cavity 11 inside the sleeve 1 is sleeved on the dust suction pipe 3, and a plurality of first limiting rings 12 distributed axially are arranged on the side thereof. The first limiting ring 12 is used to guide the assembly of the dust suction pipe 3 on the sleeve 1, and after assembly, the dust suction pipe 3 is supported with equal loads at multiple points and on the entire surface, which reduces the common dust suction pipe and the two end parts only through the end clamping, locking, and docking. The dust suction pipe is suspended in the middle, which makes the end load larger, reduces the service life and the tightness of the structural connection, and also makes the airflow guidance between the floor brush 6 and the vacuum cleaner sub-machine 8 not stable enough, and the dust suction pipe 3 is prone to vibration, causing unnecessary noise, and the dust-containing airflow is easy to flow out from the connection, polluting other vacuum cleaner parts, increasing the cleaning cost of the vacuum cleaner parts, and reducing the user experience.

[0090] A first socket 13 connected to the inner cavity 11 is provided on the side of the sleeve 1, and a stepped plug-in 24 is provided at the end of the connecting rod 23. The stepped plug-in 24 is inserted into and clamped on the first socket 13, and the top of the stepped plug-in 24 is inserted into the first socket 13. An arc surface matching the outer surface of the sleeve 1 can be provided on the side, and the arc surface abuts against the sleeve to improve the plug-in tightness of the vacuum cleaner bracket 2 and the sleeve 1.

[0091] In order to further improve the connection stability between the vacuum cleaner bracket 2 and the sleeve 1 and ensure user experience, magnets and card-connecting structures can be set on the contact surfaces of the two to achieve stable docking after the two are plugged in, so as to avoid the vacuum cleaner bracket 2 and the sleeve 1 being separated when the vacuum cleaner is moved with the help of the vacuum cleaner bracket 2, resulting in damage to the components at the connection.

[0092] In order to cooperate with the sleeve 1 to further improve the support and positioning stability of the dust suction tube 3 without causing damage to the dust suction tube 3, ensure the stability of the airflow guidance, and reduce the suction loss of the vacuum system, an arc groove is arranged on the top of the stepped plug-in 24, and the arc groove abuts against the side of the dust suction tube 3. A buffer layer is arranged between the arc groove and the dust suction tube 3. After the stepped plug-in 24 is inserted into the first socket 13, the top of the stepped plug-in 24 continues to extend inward and is tightly assembled with the side of the dust suction tube 3 through the arc groove. The buffer layer can buffer and unload the force between the vacuum cleaner bracket 2 and the dust suction tube 3 when the user presses too hard, so as to avoid the dust suction tube 3 from being damaged by impact and improve its service life.

[0093] The moving wheel 22 is a universal wheel, including a first connecting member 221, a second connecting member 222 and a roller 223 arranged from top to bottom, wherein at least one of the first connecting member 221 and the main rod 21, the first connecting member 221 and the second connecting member 222 is connected to the roller 223 along its axis, and the second connecting member 222 is connected to the roller 223 via a rotating shaft 224. The moving wheel 22 is a universal wheel, so as to achieve 0-360° rotation, so as to cooperate with the rotation of the vacuum cleaner, with the bottom wheel of the floor brush 6 as the rotation point, to initially push the sleeve 2 or the vacuum cleaner sub-machine 8, so that the moving wheel 22 first rotates accordingly, adjusts the rotation direction of the vacuum cleaner, and then pushes the sleeve 2 or the vacuum cleaner sub-machine 8 to achieve the rotation of the vacuum cleaner, making the rotation of the vacuum cleaner more convenient and easy to operate, improving the diversity of the vacuum cleaner activity mode, and improving the user experience.

[0094] The thickness of the roller 223 gradually decreases to zero from the center to the edge and is convex outward, so that the universal moving wheel 22 has a waist-shaped wheel body to reduce the pressure and wear of the vacuum cleaner on the cleaning surface when the vacuum cleaner rotates and the floor brush 6 is lifted.

[0095] In order to carry out multi-mode active operation of the vacuum cleaner through the cooperation of the dust suction tube support structure, the connection structure between the sleeve 1 and other components of the vacuum cleaner needs to be further deepened to ensure the stable connection between the dust suction tube support structure and other components of the vacuum cleaner during the activity and improve the stability of the active operation of the vacuum cleaner. The ends of the first pipe fitting 4 and the second pipe fitting 7 are inserted on the sleeve 1 through the first insert pipe 71, and the other ends of the floor brush connecting member 5 and the second pipe fitting 7 are respectively inserted on the first pipe fitting 4 and the vacuum cleaner sub-unit 8 through the second insert pipe 72.

[0096] The above structure is specifically designed as follows: the first insert tube 71 is provided with an outer convex rib 711 and an inner concave guide groove 712, and the inner and outer sides of the first insert tube 71 are respectively sleeved and penetrated with the sleeve 1 and the dust suction pipe 3, and the sleeve 1 is positioned on the first insert tube 71 through the guide notch 14 and the bayonet 15 at the end. The above structure is a deformable structure through the outer convex rib 711 and the inner concave guide groove 712. When the dust suction pipe 3 is docked with the first insert tube 71, the deformation structure can fully guide it and realize interference fitting to ensure the tightness and sealing of the connection. The sleeve 1 is interference-fitted on the outside of the first insert tube 71, and the deformation structure is finalized, which further improves the connection stability between the sleeve 1 and the connection structure, and the tightness and sealing of the docking of the dust suction pipe 3 with the connecting air duct structure, and is isolated from other components of the outer vacuum cleaner to prevent them from being contaminated.

[0097] In order to ensure that when the vacuum cleaner rotates and the floor brush 6 is lifted, there is no relative displacement of the fixed parts in the theoretical design, and to ensure efficient and stable transmission, the remaining fixed structure connections are further designed. The specific connection structure is as follows: the second plug 72 cooperates with a number of inserts 73 arranged on the outside to perform multi-layer embedded plug-in positioning with the corresponding structure, and the floor brush connector 5 and the second pipe 7 are provided with a button 74 through a hinge frame 75. The block at one end of the inner side of the button 74 is connected to the slot 80 of the corresponding structure and a pre-tightening spring is provided at the other end. The above structure facilitates the disassembly and assembly of the vacuum cleaner components, and the multi-layer embedded plug-in structure can provide stable guidance for the plug-in of the components. The structure is locked by pressing the button 74, and after positioning, the connection is positioned with high compressive and torsional strength.

[0098] The center of gravity of the vacuum cleaner is located below the insertion point of the sleeve 1 and the vacuum cleaner bracket 2 on the sleeve 1. The above design concept is that when the vacuum cleaner is placed normally or moved or rotated in the horizontal direction, the support structure cooperates with the vacuum cleaner to form a herringbone structure. The center design can prevent the floor brush 6 from automatically tilting up under the lever principle; when the vacuum cleaner sub-machine 8 is pressed down and the floor brush 6 is lifted, the center of gravity of the vacuum cleaner is within the range of the vacuum cleaner support structure, avoiding excessive torque of the vacuum cleaner, causing inconvenience for users to operate, and unstable movement of the vacuum cleaner.

[0099] In view of the above design concept, the positions of the vacuum cleaner floor brush 6 and the vacuum cleaner sub-machine 8 and their internal components corresponding to the two sides of the support structure are designed as follows: the rear end of the floor brush 6 is provided with a mounting port 61, the side of the mounting port 61 is provided with a hinge port 63, the bottom of the floor brush connector 5 is provided with a multi-layer annular plug-in structure 52, the plug-in structure 52 is inserted into the hinge port 63 and embedded in the multi-layer annular sleeve structure assembled in the floor brush 6, and the second limiting ring 53 on the outside of the plug-in structure 52 is pressed into the hinge port 63 and abuts against the inner side of the hinge port 63. In this embodiment, the contact surfaces of the plug-in structure 52, the second limiting ring 53, the sleeve structure, and the hinge port 63 are provided with a smooth layer.

[0100] The above design facilitates that at the initial stage of lifting the floor brush 6, the end of the floor brush 6 can be lifted first under the drive of the floor brush connector 5, so that the floor brush 6 rotates, and the suction force between the floor brush 6 and the ground generated by the negative pressure inside the floor brush 6 is reduced, and then the floor brush 6 is lifted as a whole. The above step-by-step lifting operation of the floor brush 6 is more labor-saving, convenient, and easy to operate. The above multi-layer annular stacked plug-in structure prevents the displacement of the floor brush 6 and the floor brush connector 5 in the radial and axial directions of the axis of the connection, thereby improving the transmission efficiency of the components when the vacuum cleaner is in motion, making the vacuum cleaner more labor-saving to operate.

[0101] A separation mechanism is provided below the handle frame of the vacuum cleaner sub-machine 8, and the separation mechanism is provided with a dust cup 81, an engine 83 located in a housing 86, a main unit 84, and a battery pack 85 from bottom to top. The engine 83 is positioned in the housing 86 through a base 82, and the main unit 84 electrically connects the engine 83 and the battery pack 85. An L-shaped handle 87 is provided on the handle frame, and arc-shaped protruding structures 871 are provided on the two side surfaces of the L-shaped handle 87. The above design ensures that the dust-laden airflow is guided without suction loss and that the air-solid separation is highly efficient, and the center of gravity distribution of the vacuum cleaner is achieved in conjunction with the floor brush 6 structure, so that the dust pipe support structure is more stable and labor-saving in conjunction with the horizontal and vertical activities of the vacuum cleaner, thereby improving the user experience.

[0102] Embodiment 2:

[0103] See also Figure 1 On the basis of the above embodiment 1, in order to further improve the convenience of use for users of different heights and body shapes, preferably, a connecting tube 231 is provided at the bottom of the connecting rod 23, and the connecting tube 231 is sleeved on the top of the main rod 21. A spring 232 is provided between the inner side of the connecting tube 231 and the main rod 21, and a locking member is inserted at the bottom of the connecting tube 231, and the locking member abuts against the main rod 21. The above structural design enables the dust suction pipe support structure to have buffering and movable functions. Compared with the fixed structure, it can reduce the energy of the vibration generated by the floor brush 6 and the vacuum cleaner sub-machine 8 when running and transmitted to the ground and the user's arm, reduce the fatigue of the user's arm, and can facilitate users of different heights and body shapes to adjust the height of the vacuum cleaner equipped with the support structure on the basis of supporting the vacuum cleaner. For users who need the vacuum cleaner to operate stably without shaking and use habits, the support structure can also be finalized with bolts or latches, so that the support structure can be used with the vacuum cleaner to achieve multiple usage modes, thereby increasing the user audience of the product.

[0104] Embodiment three:

[0105] See also Figure 2-3On the basis of the above-mentioned embodiment 1, preferably, a second socket 32 ​​is provided on the side of the dust suction pipe 3, and the top end of the connecting rod 23 is extended into the guide cavity 31 of the dust suction pipe 3 by inserting into the second socket 32, and a sealing ring 241 is provided at the connection between the connecting rod 23 and the second socket 32, and a cleaning mechanism for cleaning the inner wall of the dust suction pipe 3 is provided in the connecting rod 23. The above-mentioned design is mainly aimed at the problem that the connection structure of the floor brush 6 and the vacuum cleaner sub-machine 8 of the common upright vacuum cleaner, and the airflow guiding structure are long and the pipe diameter is small, which leads to inconvenience in cleaning, and the connection structure of the vacuum cleaner support structure and other parts of the vacuum cleaner is improved, and the top end of the vacuum cleaner support structure is directly extended to the inside of the dust suction pipe 3, and the dust and impurities residual on the inner wall of the dust suction pipe 3 are cleaned without affecting its suction loss-free air guiding function, so as to ensure the stability of the structural guide effect and improve the service life.

[0106] Embodiment 4:

[0107] Please continue reading Figure 2-3 On the basis of the above-mentioned third embodiment, the cleaning method and structure of the inner wall of the dust suction pipe 3 are specifically as follows: preferably, the cleaning mechanism is arranged in the installation groove 242 of the connecting rod 23, including a fan 25 arranged in the middle section of the installation groove 242, and the installation groove 242 is provided with an exhaust port 247 in the downwind direction of the fan 25, and a filter is arranged on the exhaust port 247.

[0108] The mounting groove 242 is a T-shaped groove, and a second suction port 244 and a first suction port 243 are respectively arranged on both sides of the top facing the air inlet and outlet ends of the guide cavity 31. At least two third suction ports 245 extend outward from the top surface of the mounting groove 242. A sealing plate 246 is hinged on the inner side of the first suction port 243, the second suction port 244 and the third suction port 245. The outer side of the sealing plate 246 abuts against the inner surface of the connecting rod 23, and the sealing plates 246 on the two third suction ports 245 are flipped in opposite directions.

[0109] When in use, the fan switch 25 is pressed to form a negative pressure in the installation groove 242, and the sealing plate 246 is turned over to open the suction ports. The airflow formed by the pressure difference impacts the inner wall of the dust suction pipe 3, causing it to desorb on the inner surface of the dust suction pipe 3, and pass through the suction port and the installation groove 242, and is intercepted by the filter screen on the exhaust port 247, so as to achieve gas-solid separation and clean exhaust. The two-way airflow in the direction of the floor brush 6 and the vacuum cleaner sub-machine 8 formed by the first suction port 243 and the second suction port 244 cooperates with the radially distributed multi-airflow on the dust suction pipe 3 formed by the third suction port 245. The laminar airflow can achieve full coverage of the airflow on the inner wall of the dust suction tube 3. The sealing plate 246 can only be turned inward, so that when the vacuum cleaner is collecting and separating dust, the support structure will not affect the internal flow of the vacuum cleaner; the above operation can be used in all assembly situations where the sleeve is removed or assembled on the vacuum cleaner. When assembled on the vacuum cleaner, the floor brush 6 and the vacuum cleaner sub-machine 8 can also be cleaned to a certain extent, the roller brush can be used to absorb dust, and the filter structure in the dust cup can be backwashed to reduce the cleaning and maintenance frequency of the filter structure and improve the filtering efficiency. The filter screen and the exhaust port 247 and the top of the connecting rod 23 are provided with a detachable shell outside the mounting groove 242 to facilitate the cleaning and maintenance of the cleaning mechanism and improve the cleaning efficiency.

[0110] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dust suction pipe support structure of a vacuum cleaner, characterized in that: include: A sleeve, with a dust suction pipe supported and positioned inside, a floor brush connecting piece connected to the bottom end through a first pipe fitting, the floor brush connecting piece is rotatably connected to the floor brush, a hose with ends connected to the dust suction pipe and the flow guide structure in the floor brush is arranged inside the floor brush connecting piece, and a vacuum cleaner sub-machine is connected to the top of the sleeve through a second pipe fitting; A vacuum cleaner bracket, comprising a main rod, a moving wheel located at the bottom of the main rod, and a connecting rod located at the top of the main rod and plugged into the sleeve; When the vacuum cleaner sub-machine is held and pulled horizontally sideways, the sleeve drives the vacuum cleaner bracket to rotate around the floor brush to turn. When the vacuum cleaner sub-machine is pressed downward, the vacuum cleaner sub-machine rotates and moves downward with the moving wheel as a fulcrum to lift the floor brush.

2. The dust suction pipe support structure of a vacuum cleaner according to claim 1, characterized in that: The inner cavity inside the sleeve is sleeved on the dust suction pipe, and a plurality of first limiting rings distributed axially are arranged on the side thereof.

3. The dust suction pipe support structure of a vacuum cleaner according to claim 2, characterized in that: A first socket connected to the inner cavity is provided on the side of the sleeve, and a stepped plug-in is provided at the end of the connecting rod. The stepped plug-in is inserted into and clamped on the first socket. An arc groove is provided on the top of the stepped plug-in, and the arc groove abuts against the side of the dust suction pipe. A buffer layer is provided between the arc groove and the dust suction pipe.

4. The dust suction pipe support structure of a vacuum cleaner according to claim 1, characterized in that: A connecting tube is arranged at the bottom of the connecting rod, and the connecting tube is sleeved on the top of the main rod. A spring is arranged between the inner side of the connecting tube and the main rod. A locking piece is inserted at the bottom of the connecting tube, and the locking piece abuts against the main rod.

5. The dust suction pipe support structure of a vacuum cleaner according to claim 1, characterized in that: The movable wheel is a universal wheel, including a first connecting member, a second connecting member and a roller arranged from top to bottom. The first connecting member and the main rod, and the first connecting member and the second connecting member are rotationally connected along their axes at least one place. The second connecting member is connected to the roller via a rotating shaft. The thickness of the roller gradually decreases to zero from the center to the edge and is in an outwardly convex shape.

6. The dust suction pipe support structure of a vacuum cleaner according to claim 1, characterized in that: A second socket is arranged on the side of the dust suction tube, and the top end of the connecting rod is extended into the guide cavity of the dust suction tube by being inserted into the second socket. A sealing ring is arranged at the connection between the connecting rod and the second socket, and a cleaning mechanism for cleaning the inner wall of the dust suction tube is arranged in the connecting rod.

7. The dust suction pipe support structure of a vacuum cleaner according to claim 6, characterized in that: The cleaning mechanism is arranged in the installation groove of the connecting rod, and comprises a fan arranged in the middle section of the installation groove. The installation groove is provided with an exhaust port in the downwind direction of the fan, and a filter is arranged on the exhaust port.

8. The dust suction pipe support structure of a vacuum cleaner according to claim 7, characterized in that: The mounting groove is a T-shaped groove body, and a second suction port and a first suction port are respectively arranged on both sides of the top facing the air inlet and outlet ends of the guide cavity. At least two third suction ports are extended outward from the top surface of the mounting groove. The first suction port, the second suction port and the third suction port are hinged with sealing plates on the inner sides, and the outer side of the sealing plate abuts against the inner surface of the connecting rod. The sealing plates on the two third suction ports are flipped in opposite directions.

9. The dust suction pipe support structure of a vacuum cleaner according to claim 1, characterized in that: The ends of the first pipe fitting and the second pipe fitting are inserted into the sleeve through the first insert pipe, and the other ends of the floor brush connecting piece and the second pipe fitting are respectively inserted into the first pipe fitting and the vacuum cleaner sub-machine through the second insert pipe. The first insert pipe is relatively provided with external convex ribs and internal concave guide grooves, and the inner and outer sides of the first insert pipe are respectively sleeved and penetrated with the sleeve and the dust suction pipe. The sleeve is positioned on the first insert pipe through the guide notch and the bayonet at the end, and the second insert pipe cooperates with a plurality of insert ribs arranged on the outside to perform multi-layer embedded plug-in positioning with the corresponding structure. The floor brush connecting piece and the second pipe fitting are provided with buttons through a hinged frame, and the block at one inner end of the button is clamped in the slot of the corresponding structure and a preload spring is arranged at the other end.

10. The dust suction pipe support structure of a vacuum cleaner according to claim 1, characterized in that: The center of gravity of the vacuum cleaner is located below the connection between the sleeve and the vacuum cleaner bracket on the sleeve. A mounting port is arranged at the rear end of the floor brush, a hinge port is arranged on the side of the mounting port, and a multi-layer annular plug-in structure is arranged at the bottom of the floor brush connecting piece. The plug-in structure is inserted into the hinge port and embedded in the multi-layer annular sleeve structure assembled in the floor brush. The second limiting ring on the outer side of the plug-in structure is pressed into the hinge port and abuts against the inner side of the hinge port. A separation mechanism is arranged below the handle frame of the vacuum cleaner sub-machine, and the separation mechanism is arranged from bottom to top with a dust cup, an engine located in the shell, a main unit and a battery pack. The engine is positioned in the shell through a base. An L-shaped handle is arranged on the handle frame, and arc-shaped protrusion structures are arranged on the two side sections of the L-shaped handle.

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