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CN-121987091-A - Hard surface cleaning apparatus

CN121987091ACN 121987091 ACN121987091 ACN 121987091ACN-121987091-A

Abstract

The invention relates to a hard surface cleaning device comprising a suction assembly for forming a suction flow, the suction assembly comprising a suction unit and a motor driving the suction unit, a suction nozzle in fluid communication with the suction assembly for sucking a liquid-air mixture from a hard surface, a cleaning flow path between the suction nozzle and the suction assembly, a separation member for separating liquid from the sucked liquid-air mixture being arranged in the cleaning flow path, and a liquid reservoir for containing the separated liquid, the liquid reservoir being detachably mounted to the separation member, wherein the liquid reservoir and the separation member are integrally mountable to and removable from the hard surface cleaning device.

Inventors

  • QIN TIANKUI

Assignees

  • 创科无线普通合伙

Dates

Publication Date
20260508
Application Date
20241106

Claims (15)

  1. 1. A hard surface cleaning device comprising: A suction assembly for forming a suction flow, the suction assembly comprising a suction unit and a motor driving the suction unit; a suction nozzle in fluid communication with the suction assembly for drawing the liquid air mixture from the hard surface; A cleaning flow path between the suction nozzle and the suction assembly, a separation member for separating liquid from the sucked liquid-air mixture being provided in the cleaning flow path, and A liquid storage tank for containing separated liquid, the liquid storage tank being detachably mounted to the separation member; wherein the reservoir and the separation member are integrally mountable to and removable from the hard surface cleaning apparatus.
  2. 2. The hard surface cleaning device according to claim 1 wherein the separating member comprises a double-cylinder structure in an upper portion, forming a mixture inlet between the outer cylinder and the inner cylinder, the inner cylinder forming a gas exit outlet, the sucked liquid-air mixture entering the liquid-separating tank via the mixture inlet, the gas exiting the hard surface cleaning device via the gas exit outlet.
  3. 3. The hard surface cleaning device according to claim 2, wherein the separating member and the reservoir comprise a securing means and a complementary mating means, respectively, such that the separating member is releasably securable to the reservoir.
  4. 4. A hard surface cleaning device according to claim 3, wherein the separating member comprises a flange at an upper portion, the flange comprising a stop extending axially downwardly from its peripheral edge, wherein the stop comprises a recess formed circumferentially as a blind hole in the stop.
  5. 5. Hard surface cleaning device according to claim 4, wherein the reservoir is provided with a stop protrusion at the mouth of the bottle extending radially outwards from the mouth, the stop protrusion being configured to engage the stop, in particular the recess.
  6. 6. The hard surface cleaning device as recited in claim 5 wherein the stop is disposed at a diametrically opposed location of the flange, the number of stop protrusions being the same as the number of stop.
  7. 7. The hard surface cleaning device as recited in claim 5 or 6 wherein the stop projection has a wedge shape in a clockwise direction.
  8. 8. A hard surface cleaning device according to claim 5 or 6, wherein the hard surface cleaning device is provided with a locking element, the reservoir being provided with complementary locking means at its bottom side, the reservoir being releasably lockable to the hard surface cleaning device by means of the locking element and complementary locking means.
  9. 9. The hard surface cleaning device as recited in claim 8 wherein the complementary locking means is a receptacle recessed inwardly toward the receiving space of the reservoir, the hard surface cleaning device comprising a bottom wall housing, the locking element being a locking cap biased into the receptacle and held in place.
  10. 10. The hard surface cleaning device according to claim 8 wherein the reservoir comprises a groove at a bottom thereof, the groove being recessed inwardly from a bottom wall of the reservoir, the receptacle being recessed further inwardly from the groove, the bottom wall housing being formed with a tongue protruding upwardly therefrom, the groove being configured to slide over the tongue, the locking cap being floatable to be exposed from the tongue.
  11. 11. The hard surface cleaning device according to claim 10 wherein the tongue comprises an opening, the locking cap comprises a cap in the form of a dome and a bill extending outwardly from a bottom of the cap, the cap is movable through the opening without the bill being movable through the opening, and a resilient member is compressively disposed between the bottom wall housing and the cap.
  12. 12. A hard surface cleaning device according to any one of the preceding claims, comprising a moulded seal between the reservoir and the separating member, the moulded seal being located between the mouth of the reservoir and the body of the separating member in a radial direction.
  13. 13. The hard surface cleaning apparatus according to claim 12 wherein a protruding wall portion is provided below the flange, the protruding wall portion protruding slightly in a radial direction relative to the main body portion of the separating member to form a stop block preventing the molded seal from sliding out in an axial direction.
  14. 14. A hard surface cleaning device according to claim 12 or 13, wherein the moulded seal is made of an elastomeric material, the moulded seal having on its outer peripheral surface ring portions spaced apart in an axial direction, preferably O-rings being arranged between the spaced apart ring portions of the moulded seal.
  15. 15. The hard surface cleaning device according to any one of claims 1 to 14, wherein the reservoir further comprises a guide block protruding outwards from the upper end peripheral side, the housing of the hard surface cleaning device comprising a slot for receiving the guide block, preferably the reservoir further comprises a longitudinally extending protruding portion, the housing of the hard surface cleaning device comprising a recess for cooperation with the protruding portion, preferably the reservoir is made of a transparent or translucent material.

Description

Hard surface cleaning apparatus Technical Field The present invention relates to the field of surface cleaning, and more particularly to a hard surface cleaning apparatus having a suction assembly for creating a suction flow, a suction nozzle in fluid communication with the suction assembly, a cleaning flow path between the suction nozzle and the suction assembly, and a liquid reservoir for containing separated liquid, a separation member for separating liquid from a liquid-air mixture being sucked being provided in the cleaning flow path. Background A hard surface cleaning device is a device for cleaning hard surfaces such as glass surfaces. The hard surface cleaning device can automatically adsorb sewage and dirt generated in the cleaning process while cleaning, so that the hard surface is ensured to be clean and free of marks. With such a hard surface cleaning device, surfaces, such as ground surfaces or table surfaces, tile walls or e.g. glass surfaces, in particular window glass, can be cleaned. The hard surface cleaning device may be directed along a surface to be cleaned and have a suction nozzle in fluid communication with the suction assembly for drawing a liquid air mixture. The suction assembly generates a suction air flow under which a liquid air mixture can be sucked, for example, from a surface to be cleaned or from a suction nozzle of a contact surface of a hard surface cleaning device. The separation member is for separating liquid from the sucked liquid-air mixture, and the liquid storage tank is for containing the separated liquid. The reservoir is typically removable to allow a user to easily remove the reservoir for cleaning and emptying. This reduces the risk of build-up of dirt inside the hard surface cleaning device, prolongs the service life of the hard surface cleaning device and ensures that the hard surface cleaning device always remains in efficient operation. In the art, a rotationally locked connection is typically used to secure the fluid reservoir with a rotational motion, and a threaded or rotationally locked groove is typically designed at the interface of the fluid reservoir. The user places the fluid reservoir into the corresponding interface of the hard surface cleaning device and then rotates the fluid reservoir clockwise so that the threads or locking tabs thereon engage with the locking structure of the hard surface cleaning device to complete the locking. When the locking device is detached, the locking device can be loosened by reversely rotating the liquid storage tank, and the locking device can be taken down. In some applications, although the spin-lock connection is capable of removably connecting the reservoir to the hard surface cleaning device, as the interface is subject to the weight of the reservoir in use, particularly when a quantity of liquid has been stored in the reservoir, the weight of the reservoir may cause the seal and connection of the reservoir at the interface to become frangible due to the greater weight, as the reservoir is suspended from the hard surface cleaning device solely by the connection, thus causing the reservoir to fall or liquid in the reservoir to flow from the interface, thereby affecting the operation of the hard surface cleaning device. Accordingly, there remains a need in the art for an improved hard surface cleaning device that facilitates achieving a good cleaning effect, wherein the reservoir of the hard surface cleaning device can be easily removed and replaced, especially tool-less, and ensures that the reservoir is firmly held in place and thus ensures a good cleaning effect of the hard surface cleaning device and extends the overall service life of the hard surface cleaning device. Disclosure of Invention It is an object of the present application to provide a hard surface cleaning device to which a reservoir can be locked tool-lessly at its upper and bottom ends and from which the reservoir can be detached tool-lessly, which reservoir can be supported at both the upper and bottom ends in use, helping to ensure that the reservoir is held firmly in place, preventing the reservoir from loosening and preventing liquid from leaking from the reservoir, thus ensuring good cleaning results of the hard surface cleaning device and extending the overall service life of the hard surface cleaning device. To solve the above technical problem, in one aspect of the present application, there is provided a hard surface cleaning apparatus comprising: A suction assembly for forming a suction flow, the suction assembly comprising a suction unit and a motor driving the suction unit; a suction nozzle in fluid communication with the suction assembly for drawing the liquid air mixture from the hard surface; A cleaning flow path between the suction nozzle and the suction assembly, a separation member for separating liquid from the sucked liquid-air mixture being provided in the cleaning flow path, and A liquid storage tank for containing sep