A dust collecting device with an extendible and flexible air tube including a housing, a cover, an air tube, a dust collecting head, a filter material and a gas guiding device. The cover is detachably disposed on the housing and has an accommodating groove. The air tube is positioned in the accommodating groove and extendible and flexible, the air tube is capable of being extended to outside the accommodating groove and retracted to be accommodated in the accommodating groove, and a bending angle and an extension direction of the air tube is changeable by flexibility. The dust collecting head is disposed at the air tube, and is positioned in the accommodating groove when the air tube is shortened to be accommodated in the accommodating groove. The filter material is disposed inside the housing and close to the cover. The gas guiding device is disposed inside the housing.

Disclosed are a conductive telescopic tube and a hand-held vacuum cleaner, the conductive telescopic tube includes a plurality of sleevings capable of extending-retracting with respect to each other, and conductive assemblies disposed on each of the sleevings and capable of being connected with each other, and the conductive assemblies include mounting seats disposed on one side of the sleevings along a length direction of each of the sleevings, contact strips disposed along a length direction of the mounting seat, and a conductive joint conductively connecting every two adjacent of the contact strips respectively, wherein every two adjacent of the mounting seats are telescopically disposed, two end portions of the conductive joint are respectively located within two adjacent mounting seats, and capable of always conductively connecting the two adjacent contact strips. The hand-held vacuum cleaner includes a vacuum cleaner body, a dust suction head and the conductive telescopic tube.

A central vacuum cleaning system includes an inlet valve mounted at various locations in a structure or RV and connected to the inlet end of a vacuum conduit. A section of hose is slidably mounted within the conduit and extends from the inlet valve for cleaning an adjacent area. The hose includes a hose plug connected with a distal end of the hose. The hose plug includes an annular channel and an orthogonally aligned slot. The hose plug may also include a first seal and a second seal.

The invention relates to a vacuum cleaner. The vacuum cleaner comprises a head portion; a body; a vacuum module positioned in the body, the vacuum module being adapted to generate suction for collecting dust via the head portion; a hose member adapted to connect the head portion with the vacuum module; and a guide member associated with the hose member; wherein the guide member is adapted to guide movement of the hose member such that, in response to movement of the guide member, the hose member automatically extends between a retracted position and an extended position to thereby position the head portion relative to the body.

A central vacuum cleaning system includes an inlet valve mounted at various locations in a structure or RV and connected to the inlet end of a vacuum conduit. A section of hose is slidably mounted within the conduit and extends from the inlet valve for cleaning an adjacent area. A pair of seals within the inlet valve retains a nozzle handle mounted on the end of the hose in a stored position when the hose is in a retracted position and provides an air seal between the handle and vacuum supply conduit. A locking mechanism mounted on one embodiment of the inlet valves automatically locks the hose in a selected extended position when manually pulled from the inlet valve. A mounting bracket enables the inlet valve to be mounted at various locations in the structure and a pair of seals enables the inlet valve to be open to the ambient atmosphere.

An artificial intelligence cleaner may determine a length of a head from user cleaning information including a height of a user, a pressure sensing value applied to the head and a head angle between the head and the ground using a head length calculation model and control a head motor to have the determined length of the head.

Disclosed are a clamping-type dust suction tube of a vacuum cleaner and a hand-held vacuum cleaner. The clamping-type dust suction tube includes a tube body and a conductive assembly arranged within the tube body, the tube body includes a plurality of sub-tubes connected in a butt joint manner to form a whole tube, joints arranged at joint portions of every two sub-tubes, and locking mechanisms arranged on the joints and used for locking every two sub-tubes with respect to each other, wherein the length of each sub-tube is less than or equal to a length, a width or a height of other components of the vacuum cleaner. The whole clamping-type dust suction tube is convenient for assembly and carry, reduces the volume of the package, and in addition, it is simple in structure, convenient to implement, and low in cost.

A telescopic tube device includes a first tube assembly, a second tube assembly slidably connected relative to the first tube assembly, and an operating unit disposed at a sleeved position between the first tube assembly and the second tube assembly. The operating unit includes an operating member, a first locking member, a second locking member, and a limiting member. When in a locked state, the limiting member is at an initial position, and the first locking member and the second locking member remain engaged; when in at least one released state, the limiting member is offset from the initial position, and the first locking member and the second locking member are disengaged. At least one elastic member provides the limiting member with a pulling force so that the limiting member has a tendency to remain at the initial position. A related vacuum cleaner is disclosed.

A flexible hose for use with surface cleaning devices is disclosed that includes a support structure that allows a user to collapse and lock the same into a storage configuration, and then easily unlock the same using a relatively minor amount of force, e.g., a user-applied pulling force or mechanical force. Thus, in a general sense, a hose consistent with the present disclosure may include two relatively stable/steady-state configurations, namely a storage configuration and an in-use configuration. Thus, the hose allows a user to collapse and lock the hose when not in use, and to transition the hose to an in-use configuration to target various types of surfaces to clean including, for instance, floors, walls and ceilings which may be many feet (e.g., up to 5 feet or more) from the surface cleaning apparatus.

A vacuum cleaner that can quickly be configured in various operating modes, including a standard-style upright vacuum, upright vacuum capable of cleaning under furniture, stick vacuum, handheld vacuum, and pod vacuum. An example embodiment is a surface cleaning apparatus that includes an elongated support member, a handle coupled to an upper end of the elongated support member, a vacuum module slidably and detachably coupled to the elongated support member, and a hose coupled to the vacuum module and expandable to accommodate lower and upper positions of the vacuum module along the elongated support member. The surface cleaning apparatus can further include a floor nozzle detachably coupled to a lower end of the elongated support member and the hose.