CN113827148A

CN113827148A - Cleaning head for a surface suction device

Info

Publication number: CN113827148A
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: 2021-12-24
Anticipated expiration: 2040-06-08
Also published as: CN113827148B

Abstract

The invention discloses a cleaning head for surface suction equipment, which comprises a base and a rotating body, wherein the base comprises a shell, a suction channel and a pressure boosting 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 on the bottom plate at the opening, the pressure boosting 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 in 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 rotating body is provided with a contact part which is abutted against the sliding block when in a backward inclined use position, and the contact part is configured to be capable of transmitting acting force applied to the rotating body to the sliding block when abutted against the sliding block. The flexible flat suction nozzle at the front part of the bottom of the cleaning head can be always attached to the surface to be cleaned when in work, namely, the flexible flat suction nozzle can work with high efficiency all the time.

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 apparatuses that use air to create a partial vacuum to draw dust, dirt, liquid, or other debris from a surface. Surface suction devices typically draw a combination of air and dust, dirt, soiling or other debris on a surface to be cleaned into the interior of the device by means of a cleaning head which is capable of moving over the surface to be cleaned. Dust, dirt, dirty liquid or other debris will be trapped within the apparatus and "clean air" will leave the apparatus and be exhausted to the environment.

The above-mentioned cleaning heads are usually provided with at least one opening in the front bottom portion through which a combination of air and dust, dirt, liquid dirt or other debris can be fed further into the interior of the apparatus, the user typically holding a handle in an articulated relationship with the cleaning head when performing a cleaning operation using the surface suction apparatus, the cleaning head is moved back and forth from far to near or from near to far so as to suck the dirt on the surface to be cleaned, since the handle is usually remote from the cleaning head, and from its opening, the force applied to the handle by the user is difficult to transfer directly to the cleaning head, particularly at the front opening of the cleaner head, which tends to cause the front of the cleaner head to tend to tilt upwardly away from the surface to be cleaned, which affects the combined suction efficiency of the air and dust, dirt, liquid dirt or other debris.

Disclosure of Invention

In order to solve the above technical problems, it is an object of the present invention to provide a cleaning head for a surface suction device which can be consistently brought into close proximity to a surface to be cleaned.

In order to achieve the purpose of the invention, the invention adopts the following technical scheme: a cleaner head for a surface suction apparatus, the cleaner head comprising a base movable over a surface to be cleaned, and a rotor connected to the base and pivotable relative to the base between an upright non-use position and a rearwardly inclined use position, the base comprising a housing, a suction channel within the housing, the housing comprising an upper casing and a sole plate fixedly connected to a lower part of the upper casing, the suction channel comprising an opening provided in a front part of the sole plate, the sole plate having mounted at the opening a flexible flat suction nozzle capable of drawing up air flow and debris from the surface to be cleaned and delivering the same to the opening, and pressurising means comprising a sliding sleeve fixedly connected to a rear part of the upper casing, a slider at least partially disposed within the sliding sleeve and movable in a forward and rearward direction, And at least one spring disposed between the slide bush and the slider, the spring being elastically deformable in the front-rear direction, the rotor having a contact portion that abuts against the slider in the backward inclined use position, the contact portion being configured to transmit an urging force applied to the rotor to the slider when abutting against the slider.

The sliding block of one of the preferred embodiments comprises a front part and a rear part, and the at least one spring is arranged between the sliding sleeve and the front part of the sliding block. 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 part of the inner wall surface of the rear part of the upper shell and a clamping groove positioned on the upper surface, and 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 preferable embodiments, the sliding sleeve is provided with a positioning sliding groove extending in the front-rear direction, the sliding block is provided with a limiting block, the limiting block is located in the positioning sliding groove, and when the sliding block slides in the front-rear direction, the limiting block is limited in the positioning sliding groove to slide.

The invention can effectively avoid the front part of the cleaning head from tilting by arranging the supercharging device, so that the flexible flat suction nozzle at the front part of the bottom of the cleaning head can always cling to the surface to be cleaned when in work, thereby ensuring that the cleaning head can always work under high efficiency.

Drawings

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

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

FIG. 3 is a schematic bottom perspective view of a base according to one embodiment of the solution of the 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 disassembled schematic view of a supercharging assembly in accordance with an embodiment of the present inventive concept;

FIG. 6 is a schematic cross-sectional front view of a base in accordance with one embodiment of the present solution;

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

figure 8 is a schematic view of a vacuum cleaner according to an embodiment of the solution of the invention.

Wherein: 100. a cleaning head; 1. a base; 2. a rotating body; 3. erecting a rod; 4. a cleaning liquid tank; 5. a sewage recovery tank; 101. an upper housing; 102. a base plate; 11. a housing; 12. a suction duct; 13. an opening; 17. a drip port; 15. brushing; 18. a flexible liquid scraping strip; 14. a flexible flat suction nozzle; 141. a front flexible lip scraping strip; 142. a rear flexible lip scraping strip; 143. a dirty liquid suction passage; 16. a pressure boosting device; 161. a sliding sleeve; 162. a slider; 163. a spring; 1611. an upper surface; 1612. a card slot; 1613. positioning the chute; 1621. a front portion; 1622. a rear portion; 1623. a limiting block; 21. a contact portion; 1011. a convex portion; 200. a hand-held vacuum device.

Detailed Description

Referring to fig. 1, a cleaner head 100 according to an embodiment of the present application is illustrated, which includes a base 1, a rotator 2, and an upright 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 backward inclined use position. The upright stanchion 3 is fixedly connected to the upper part of the rotor 1. The upright rod 3 is provided with a cleaning liquid tank 4 and a dirt recovery tank 5. For purposes of describing the invention in connection with the drawings, the terms "upper", "lower", "right", "left", "rear", "front", "vertical", "horizontal", "inner", "outer" and derivatives thereof shall relate to the invention as shown in FIG. 1. From the perspective of the user, the user stands on the rear side of the cleaner head 100 when using the cleaner 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; it comprises 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 inside a suction duct 12, the suction duct 12 having an opening 13 (shown schematically in fig. 2 and 3) opening out in front of the bottom plate 102. The suction duct 12 leads to the dirt recovery tank 5 and to a suction motor (not shown) which is located elsewhere in the surface suction apparatus. The suction duct 12 receives and guides the dirty liquid mixed fluid sucked by suction, and the opening 13 is located at the intersection 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 discharge passage (not shown) for discharging cleaning liquid, such as water stored in the cleaning liquid tank 4, an aqueous solution containing detergent and/or bactericide, or the like, to the outside to wet the surface to be cleaned is provided in the housing 11. The cleaning liquid discharge channel has a drip opening 17 in the floor plate 102, by means of which drip opening 17 the cleaning liquid can be continuously supplied to the cleaning tool or the surface to be cleaned of the floor plate 102. The bottom plate 102 is further provided with a brush 15 and a flexible wiping strip 18, the flexible wiping strip 18 in this example extends left and right, and the flexible wiping strip 18 can be contacted with the surface to be cleaned to scrape the surface to be cleaned on one hand and effectively prevent the cleaning liquid dropping from the dropping port 17 from flowing to the rear part of the flexible wiping strip 18 beyond the flexible wiping strip 18 on the other hand. The base plate 102 is fixedly mounted with a flexible flat suction nozzle 14 at the opening 13. The flexible flat suction nozzle 14 comprises: a front flexible scraping lip strip 141 and a rear flexible scraping lip strip 142 which are arranged in a front-rear opposite mode. The front flexible scraping lip strip 141 and the rear flexible scraping lip strip 142 both extend in the left-right direction and are arranged at the edges of the front side and the rear side of the opening 13, and a dirty liquid suction channel 143 communicated with the suction channel 12 is formed between the front flexible scraping lip strip 141 and the rear flexible scraping lip strip 142.

As shown in figure 4, a set of pressurising means 16 is also provided on the cleaner head 100 for applying pressure to the front of the sole plate 102. The pressurizing device 16 includes a slide sleeve 161, a slider 162, and a pair of springs 163.

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

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

As shown in fig. 4, 6, and 7, the rotating body 2 has a contact portion 21 that contacts the slider 162 when in the usage position tilted rearward, and the contact portion 21 is arranged to transmit the urging force applied to the rotating body 2 to the slider 162 when contacting the slider 162.

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

As shown in fig. 7, when the force applied by the user is transmitted to the rotating body 2 in the usage position inclined rearward, the pair of contact portions 21 on the rotating body 2 will push the slider 162 to move forward, and the pair of springs 163 elastically deform 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 shell 101 by the convex part 1011 matching with the slot 1612 of the sliding sleeve 161; since the bottom plate 102 and the upper housing 102 are in a fixed relationship, the acting force exerted by the pair of contact portions 21 is finally transmitted to the bottom plate 102, and the acting force can prevent the flexible flat suction nozzle 14 from being tilted upwards, thereby influencing the acting force 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 scraping lip strip 141 and the rear flexible scraping lip strip 142 on the flexible flat suction nozzle 14 are always attached 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 scraping liquid strip 18 can also brush and scrape and clean the surface to be cleaned.

A surface cleaning apparatus as shown in figure 8 comprises a cleaning head 100 as described above and a hand-held vacuum device 200. The handheld vacuum device 200 in this example can be used alone as a handheld vacuum cleaner. The hand-held vacuum device 200 is connected to the upper end of the upright 3, the negative pressure suction force 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 force applied by the user to the hand-held vacuum device 200 is transmitted to the rotator 2 via the upright 3 and to the flexible flat suction nozzle 14 of the bottom plate 106 via the pressure boosting device 16.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A cleaning head for a surface suction apparatus, the cleaning head comprising a base movable over a surface to be cleaned, and a rotor connected to the base and pivotable relative to the base between an upright non-use position and a rearwardly inclined use position, the base comprising a housing, a suction channel within the housing, the housing comprising an upper casing and a sole plate fixedly connected to a lower part of the upper casing, the suction channel comprising an opening provided in a front part of the sole plate, the sole plate having mounted at the opening a flexible flat suction nozzle capable of drawing up air flow and debris from the surface to be cleaned and delivering the same to the opening, and pressurising means comprising a sliding sleeve fixedly connected to a rear part of the upper casing, a slider at least partially disposed within the sliding sleeve and movable in a forward and rearward direction, And at least one spring disposed between the slide bush and the slider, the spring being elastically deformable in the front-rear direction, the rotor having a contact portion that abuts against the slider in the backward inclined use position, the contact portion being configured to transmit an urging force applied to the rotor to the slider when abutting against the slider.

2. A cleaning head for a surface suction apparatus according to claim 1, wherein the slider comprises a front and a rear, the at least one spring being disposed between the sliding sleeve and the front of the slider.

3. A cleaner head for a surface suction apparatus according to claim 2, wherein the contact portion abuts a rear portion of the slider when the rotor is in the rearwardly inclined use position.

4. The cleaner head for a surface suction apparatus of claim 1, wherein the sliding sleeve includes an upper surface opposite to a part of the inner wall surface of the rear portion of the upper housing and a locking groove on the upper surface, and a protrusion is provided on the inner wall surface of the rear portion of the upper housing; 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.

5. The cleaner head for a surface suction device of claim 1, wherein the sliding sleeve is provided with a positioning slot extending in a forward-rearward direction, the slider is provided with a stopper, the stopper is positioned in the positioning slot, and the stopper is confined in the positioning slot to slide when the slider slides in the forward-rearward direction.

6. A cleaner head for a surface suction apparatus according to claim 1, wherein the rear of the sole plate is fitted with a flexible scraping strip, and the central portion of the sole plate is provided with a brush assembly and an exit aperture for applying cleaning liquid to a surface to be cleaned.

7. A cleaning head for a surface suction apparatus as claimed in claim 6, further comprising an upright fixedly attached to the upper portion of the rotor, the upright having mounted thereon a cleaning liquid tank for supplying cleaning liquid to the liquid outlet and a dirt recovery tank in communication with the suction passage.