CN113827148B

CN113827148B - Cleaning head for a surface suction device

Info

Publication number: CN113827148B
Application number: CN202010512225.0A
Authority: CN
Inventors: 卞庄
Original assignee: Suzhou Chenghe Cleaning Equipment Co Ltd
Current assignee: Suzhou Chenghe Cleaning Equipment Co Ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2023-04-25
Anticipated expiration: 2040-06-08
Also published as: CN113827148A

Abstract

The invention discloses a cleaning head for surface suction equipment, which comprises a base and a rotator, wherein the base comprises a shell, a suction channel and a pressurizing device, the suction channel is positioned in the shell, the shell comprises an upper shell and a bottom plate fixedly connected to the lower part of the upper shell, the suction channel comprises an opening arranged at the front part of the bottom plate, a flexible flat suction nozzle is fixedly arranged at the position of the opening on the bottom plate, the pressurizing device comprises a sliding sleeve fixedly connected with the rear part of the upper shell, a sliding block at least partially arranged in the sliding sleeve and capable of moving along the front-back direction, and at least one spring arranged between the sliding sleeve and the sliding block, the spring can elastically deform in the front-back direction, the rotator is provided with a contact part propped against the sliding block when in a backward inclined use position, and the contact part is configured to transmit acting force applied to the rotator to the sliding block when propped against the sliding block. The flexible flat suction nozzle at the front part of the bottom of the cleaning head can be always stuck to the surface to be cleaned when in work, namely, the cleaning head always works under high efficiency.

Description

Cleaning head for a surface suction device

Technical Field

The invention belongs to the technical field of household cleaning equipment, and particularly relates to a cleaning head for surface suction equipment.

Background

Surface suction devices are surface cleaning devices that utilize air to create a partial vacuum to draw dirt, dust, liquid, or other debris from a surface. Surface suction devices typically draw in a combination of air and dust, dirt liquid or other debris on a surface to be cleaned into the interior of the device through a cleaning head that is capable of moving over the surface to be cleaned. Dust, dirt, liquid or other debris will be trapped within the device, while "clean air" will leave the device and be discharged to the outside.

The cleaning heads mentioned above are typically provided with at least one opening in the front bottom through which a combination of air and dust, dirt, liquid or other debris can be further fed into the apparatus, and a user typically holds a handle in hinged relationship with the cleaning head during a cleaning operation using the surface suction apparatus, by reciprocally moving the cleaning head from far to near or from far to achieve suction of dirt on the surface to be cleaned, and since the handle is typically remote from the cleaning head and its opening, the force applied by the user to the handle is difficult to transfer directly to the cleaning head, particularly to the front opening of the cleaning head, such that the front of the cleaning head tends to tend to tilt upwards away from the surface to be cleaned, which would affect the combined suction efficiency of air and dust, dirt, liquid or other debris.

Disclosure of Invention

In order to solve the above technical problem, an object of the present invention is to provide a cleaning head for a surface suction apparatus, which can be consistently brought into close contact with a surface to be cleaned.

In order to achieve the purpose of the invention, the invention adopts the following technical scheme: a cleaning head for a surface suction apparatus, the cleaning head comprising a base which is movable over a surface to be cleaned, and a rotor which is connected to the base and which is pivotable relative to the base between an upright non-use position and a rearwardly inclined use position, the base comprising a housing which includes an upper casing and a floor fixedly connected to a lower portion of the upper casing, the suction passage including an opening provided in a front portion of the floor, and a supercharging means which includes a slide fixedly connected to a rear portion of the upper casing, a slider which is at least partially disposed within the slide and which is movable in a forward-rearward direction, and at least one spring disposed between the slide and the slider, the spring being elastically deformable in the forward-rearward direction, the rotor having a portion which is disposed in abutment with the slider when in the rearwardly inclined use position, and being configured to be brought into contact with the slider when the rotor is in contact with the slider.

The slider as one of the preferred embodiments comprises a front portion and a rear portion, the at least one spring being arranged between the sliding sleeve and the front portion of the slider. It is further preferable that the contact portion abuts against a rear portion of the slider when the rotor is in the backward inclined use position.

The sliding sleeve as one of the preferable embodiments comprises an upper surface opposite to a part of the inner wall surface of the rear part of the upper shell and a clamping groove positioned on the upper surface, wherein a convex part is arranged on the inner wall surface of the rear part of the upper shell; the convex part is inserted into the clamping groove, so that the acting force transmitted to the sliding sleeve can be continuously transmitted to the upper shell.

As one of the preferable embodiments, the sliding sleeve is provided with a positioning chute extending along the front-back direction, the sliding block is provided with a limiting block, the limiting block is positioned in the positioning chute, and when the sliding block slides along the front-back direction, the limiting block is limited to slide in the positioning chute.

The invention can further extend the acting force transmitted to the rotating body to the front part of the cleaning head by the increasing device through arranging the pressurizing device, so that the front part of the cleaning head can be effectively prevented from being tilted, and the flexible flat suction nozzle at the front part of the bottom of the cleaning head can be always stuck to the surface to be cleaned when in operation, thereby enabling the cleaning head to work at high efficiency all the time.

Drawings

FIG. 1 is a schematic perspective view of a cleaning head according to one embodiment of the present invention;

FIG. 2 is a top perspective view of a base according to one embodiment of the present disclosure;

FIG. 3 is a bottom perspective view of a base according to one embodiment of the present invention;

FIG. 4 is a schematic view of the interior of the base of FIG. 2 with the upper housing removed;

FIG. 5 is a schematic exploded view of a supercharging device according to one embodiment of the present disclosure;

FIG. 6 is a schematic front cross-sectional view of a base according to one embodiment of the present invention;

FIG. 7 is a schematic perspective cutaway view of a base according to one embodiment of the present invention;

figure 8 is a schematic view of a vacuum cleaner according to one embodiment of the present invention.

Wherein: 100. a cleaning head; 1. a base; 2. a rotating body; 3. a vertical rod; 4. a cleaning liquid tank; 5. a dirt recovery tank; 101. an upper housing; 102. a bottom plate; 11. a housing; 12. a suction duct; 13. an opening; 17. a liquid drop port; 15. brushing; 18. a flexible wiper strip; 14. a flexible flat suction nozzle; 141. a front flexible lip strip; 142. a rear flexible lip strip; 143. a dirty liquid suction channel; 16. a supercharging device; 161. a sliding sleeve; 162. a slide block; 163. a spring; 1611. an upper surface; 1612. a clamping groove; 1613. positioning a chute; 1621. a front part; 1622. a rear portion; 1623. a limiting block; 21. a contact portion; 1011. a convex portion; 200. a hand-held vacuum device.

Detailed Description

A cleaning head 100 according to an embodiment of the present application is described with reference to figure 1 and comprises a base 1, a rotor 2 and a pole 3. The lower part of the rotating body 2 is rotatably connected to the base 1, and the rotating body 2 has an upright non-use position and a rearward inclined use position. The vertical rod 3 is fixedly connected to the upper part of the rotating body 1. The upright 3 is provided with a cleaning liquid tank 4 and a sewage recovery tank 5. For purposes of description in connection with the drawings, the terms "upper", "lower", "right", "left", "rear", "front", "vertical", "horizontal", "inner", "outer" and derivatives thereof will refer to the invention as shown in fig. 1. From the user's perspective, the user stands on the rear side of the cleaning head 100 when using the cleaning head 100.

As shown in fig. 2-3, the base 1 is adapted to be moved over a surface to be cleaned, in particular a floor surface; it includes a housing 11 composed of an upper case 101 and a bottom plate 102 fixedly connected to the lower portion of the upper case 101. The housing 11 has a suction duct 12 inside, the suction duct 12 having an opening 13 (shown schematically in fig. 2 and 3) open at the front of the base plate 102. The suction duct 12 leads to the dirt recovery tank 5 and to a suction motor (not shown) located elsewhere in the surface suction apparatus. The suction duct 12 receives and guides the fluid mixed with the contaminated liquid sucked by suction, and the opening 13 is located at the junction of the suction duct 12 and the bottom plate 102 of the housing 11. The housing 11 and its components may have other shapes and configurations in other embodiments. A cleaning liquid output passage (not shown) for externally outputting a cleaning liquid, which is water stored in the cleaning liquid tank 4, an aqueous solution containing a detergent and/or a bactericide, or the like, to wet the surface to be cleaned is provided in the housing 11. The cleaning liquid outlet channel has a liquid drop 17 on the base plate 102, by means of which liquid drop 17 cleaning liquid can be continuously fed to the cleaning tool of the base plate 102 or to the surface to be cleaned. The bottom plate 102 is also provided with the brush 15 and the flexible scraping strip 18, the flexible scraping strip 18 of the present example extends along the left and right direction, and the flexible scraping strip 18 can scrape the surface to be cleaned by contacting with the surface to be cleaned, and can effectively prevent the cleaning liquid dripping from the liquid dripping port 17 from flowing to the rear part of the flexible scraping strip 18 beyond the flexible scraping strip 18. The base plate 102 is fixedly provided with a flexible flat suction nozzle 14 at the opening 13. The flexible flat suction nozzle 14 comprises: front and rear flexible lip strips 141 and 142 are disposed in front of and opposite to each other. The front flexible lip strip 141 and the rear flexible lip strip 142 extend in the left-right direction and are disposed at the front and rear side edges of the opening 13, and a dirty liquid suction channel 143 communicating with the suction channel 12 is constructed between the front flexible lip strip 141 and the rear flexible lip strip 142.

As shown in fig. 4, a set of pressurizing means 16 for applying pressure to the front of the soleplate 102 is also provided on the cleaning head 100. The pressurizing means 16 includes a slide 161, a slider 162, and a pair of springs 163.

As shown in fig. 5, the slide sleeve 161 has an upper surface 1611 opposed to a part of the inner wall surface of the rear portion of the upper housing 101, and a catching groove 1612 located on the upper surface 1611. The slide sleeve 161 is provided with a positioning slide slot 1613 extending in the front-rear direction.

The slider 162 includes a front portion 1621 and a rear portion 1622, a stopper 1623 is provided on the slider 162 corresponding to the positioning slide slot 1613, the stopper 1623 is positioned in the positioning slide slot 1613, and the stopper 1623 is restricted to slide in the positioning slide slot 1613 when the slider 162 slides in the front-rear direction. A pair of springs 163 is provided between the slide sleeve 161 and the front portion 1621 of the slide block 162, and the pair of springs 163 is elastically deformable in the front-rear direction.

As shown in fig. 4, 6, and 7, the rotor 2 has a contact portion 21 that abuts against the slider 162 when in the use position tilted backward, and the contact portion 21 is configured to be able to transmit the force applied to the rotor 2 to the slider 162 when abutting against the slider 162.

As shown in fig. 6 and 7, a convex portion 1011 is provided on the inner wall surface of the rear portion of the upper case 101. The protrusion 1011 is inserted into the catching groove 1612 so that the force transmitted to the sliding sleeve 161 can be continuously transmitted to the upper case 101.

As shown in fig. 7, when the force applied by the user is transmitted to the rotating body 2 at the backward inclined use position, the pair of contact portions 21 on the rotating body 2 will push the slider 162 forward, and the pair of springs 163 are elastically deformed in the front-rear direction; the elastic deformation force is further transmitted to the sliding sleeve 161, and then transmitted to the rear part of the upper housing 101 by the convex part 1011 matched with the clamping groove 1612 of the sliding sleeve 161; since the base plate 102 and the upper housing 102 are in a fixed relationship, the force applied by the pair of contact portions 21 is eventually transmitted to the base plate 102, and the force can prevent the flexible flat suction nozzle 14 from being tilted upward, thereby affecting the forces of the two. When the user pushes the base 1 forwards or backwards to move forwards along the surface to be cleaned, the front flexible lip scraping strip 141 and the rear flexible lip scraping strip 142 on the flexible flat suction nozzle 14 are always clung to the surface to be cleaned, so that the passing dirty liquid is sucked into the suction channel, and the brush 15 and the flexible lip scraping strip 18 can brush and scrape the surface to be cleaned.

A surface cleaning apparatus as shown in figure 8 comprises the cleaning head 100 and hand held vacuum device 200 described above. The hand-held vacuum device 200 in this example can be used alone as a hand-held vacuum cleaner. The hand-held vacuum device 200 is connected with the upper end of the upright 3, the negative pressure suction generated by the hand-held vacuum device 200 can extend to the upright 3 and gradually extend downwards until reaching the flexible flat suction nozzle 14, and the acting force of the user on the hand-held vacuum device 200 is transferred to the rotating body 2 through the upright 3 and is transferred to the flexible flat suction nozzle 14 of the bottom plate 106 through the pressurizing device 16.

The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims

1. A cleaning head for a surface suction apparatus adapted to be attached to a hand-held vacuum apparatus, the cleaning head comprising a base movable on a surface to be cleaned, a rotor connected to the base and pivotable relative to the base between an upright non-use position and a rearwardly inclined use position, and a pole fixedly connected to an upper portion of the rotor, the pole having a cleaning liquid tank and a dirt recovery tank mounted thereon; the base comprises a shell, a suction channel positioned in the shell, a cleaning solution output channel positioned in the shell and a pressurizing device, wherein the shell comprises an upper shell and a bottom plate fixedly connected to the lower part of the upper shell, the suction channel comprises an opening arranged in the front of the bottom plate, a flexible flat suction nozzle capable of sucking air flow and fragments from the ground to be cleaned and sending the air flow and fragments to the opening is arranged at the opening of the bottom plate, the flexible flat suction nozzle comprises a front flexible lip scraping strip and a rear flexible lip scraping strip which are oppositely arranged from front to back, the front flexible lip scraping strip and the rear flexible lip scraping strip extend along the left-right direction and are respectively arranged at the front edge and the rear edge of the opening, and a sewage suction channel communicated with the suction channel is formed between the front flexible lip scraping strip and the rear flexible lip scraping strip; the supercharging device comprises a sliding sleeve fixedly connected with the rear part of the upper shell, a sliding block which is at least partially arranged in the sliding sleeve and can move along the front-rear direction, and at least one spring arranged between the sliding sleeve and the sliding block, wherein the spring can elastically deform along the front-rear direction, the sliding sleeve comprises an upper surface opposite to part of the inner wall surface of the rear part of the upper shell, a clamping groove positioned on the upper surface and a positioning sliding groove extending along the front-rear direction, and the inner wall surface of the rear part of the upper shell is provided with a convex part; the convex part is inserted into the clamping groove, so that the acting force transmitted to the sliding sleeve can be continuously transmitted to the upper shell; a limiting block is arranged on the sliding block and is positioned in the positioning sliding groove; when the sliding block slides along the front-back direction, the limiting block is limited to slide in the positioning sliding groove; the rotor has a contact portion that abuts the slider when in the backward inclined use position, and the contact portion is configured to transmit a force applied to the rotor to the slider when abutting the slider.

2. The cleaning head for a surface suction device of claim 1 wherein the slider block includes a front portion and a rear portion, the at least one spring being disposed between the slider block and the front portion of the slider block.

3. A cleaning head for a surface suction device as claimed in claim 2 wherein the contact portion abuts the rear portion of the slider block when the rotor is in the backwardly inclined in-use position.

4. A cleaning head for a surface suction device according to claim 1, characterized in that the rear part of the soleplate is provided with a flexible scraping strip, the middle part of the soleplate being provided with a brush assembly and a liquid outlet hole for applying cleaning liquid to the surface to be cleaned.