CN113440045A

CN113440045A - Scrubbing brush and dust catcher of adjustable removal resistance

Info

Publication number: CN113440045A
Application number: CN202010223987.9A
Authority: CN
Inventors: 倪祖根
Original assignee: Kingclean Electric Co Ltd
Current assignee: Kingclean Electric Co Ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2021-09-28
Anticipated expiration: 2040-03-26
Also published as: CN113440045B

Abstract

The invention relates to the technical field of cleaning machines, in particular to a floor brush and a dust collector capable of adjusting moving resistance. The floor brush with adjustable moving resistance comprises a floor brush body, wherein the bottom of the floor brush body is provided with an air suction channel, and one side of the floor brush body is provided with a notch communicated with the air suction channel; the floor brush further comprises: the valve is arranged on the floor brush body in a sliding mode so as to open or close the notch; the poking piece can be switched between a first position and a second position in a sliding mode relative to the floor brush body and drives the valve to move relative to the floor brush body so as to open or close the notch. The gap is opened or closed by the sliding of the valve relative to the floor brush body, so that the adjustment of the moving resistance between the floor brush and the ground can be realized, and the valve does not occupy the effective cleaning area of the floor brush; the valve realizes the switching through the mode of stirring the piece, convenient operation, and relative push type operation, feels, is favorable to improving user's use and experiences.

Description

Scrubbing brush and dust catcher of adjustable removal resistance

Technical Field

The invention relates to the technical field of cleaning machines, in particular to a floor brush and a dust collector capable of adjusting moving resistance.

Background

The floor brush is an important component of the dust collector, and the vacuum degree between the floor brush and the ground is an important parameter influencing the dust removal performance of the dust collector. At present, in the energy efficiency floor brushes in the current market, the floor brush with high carpet dust removal capacity has high vacuum degree between the floor brush and the carpet, large moving resistance, labor waste during use of a user and poor experience; accordingly, the carpet has poor dust removal capability due to the small moving resistance of the floor brush, and cannot be deeply cleaned.

To better meet the needs of users, the existing floor brush is provided with an opening, and the vacuum degree between the floor brush and a carpet is adjusted by opening or closing the opening, so that the floor brush can be freely switched between low moving resistance and high dust removal capacity. In the existing scheme, the opening is generally opened or closed through a rotary valve, but the required rotating space is large, the width of a floor brush is occupied, the width of the effective cleaning floor is reduced, or the opening is opened or closed through pressing of a pure mechanical type bump, but the hand feeling of a user is poor in the pressing mode.

Disclosure of Invention

The invention aims to provide a floor brush with adjustable moving resistance and a dust collector, which can be switched between low moving resistance and high dust removal capacity, do not influence the effective cleaning area of the floor brush and are convenient for users to switch.

In order to achieve the purpose, the invention adopts the following technical scheme:

a floor brush capable of adjusting moving resistance comprises a floor brush body, wherein the bottom of the floor brush body is provided with an air suction channel, and one side of the floor brush body is provided with a notch communicated with the air suction channel;

the floor brush further comprises:

the valve is arranged on the floor brush body in a sliding mode so as to open or close the notch;

the poking piece can be switched between a first position and a second position in a sliding mode relative to the floor brush body and drives the valve to move relative to the floor brush body so as to open or close the notch.

Wherein, the poking piece is provided with a first guide part; the valve is provided with a second guide part, and the first guide part is in sliding butt joint with the second guide part so as to drive the valve to slide relative to the floor brush body through the stirring piece.

The poking piece moves along the horizontal direction relative to the floor brush body, and the valve can move along the vertical direction relative to the floor brush body.

Wherein the valve has a reset function;

when the toggle piece slides from the first position to the second position, the first guide part slides to the top of the second guide part to push the valve to slide downwards to close the notch;

when the toggle piece slides from the second position to the first position, the valve slides upwards to reset so as to open the notch.

The second guide part comprises a guide inclined plane and a flat top surface connected with the guide inclined plane, and the height of the guide inclined plane is gradually increased along the direction close to the flat top surface;

when the toggle piece is located at the first position, the first guide part is abutted against the bottom of the guide inclined plane; when the toggle piece is located at the second position, the first guide part is abutted against the flat top surface.

The second guide part is connected with the floor brush body through an elastic part so as to realize the resetting of the valve.

The first guide part and the second guide part are arranged in the floor brush body, and guide grooves are respectively arranged in the floor brush body corresponding to the first guide part and the second guide part to guide the sliding directions of the first guide part and the second guide part.

The two opposite sides of the floor brush body are provided with the notches, and each notch is correspondingly provided with the valve and the poking piece.

The bottom of the floor brush body is provided with an avoiding groove, the bottom end of the stirring piece is arranged in the avoiding groove in a sliding mode, and the bottom end of the stirring piece is not protruded out of the avoiding groove.

A dust collector comprises the floor brush with adjustable moving resistance.

Has the advantages that:

in the invention, the gap is opened or closed by sliding the valve relative to the floor brush body, so that the moving resistance between the floor brush and the ground can be adjusted; the valve is opened or closed in a sliding mode, the space occupied by the floor brush body during sliding is small, the structure is more compact, and the valve does not occupy the effective cleaning area of the floor brush; the valve realizes the switching through the mode of stirring the piece, convenient operation, and relative push type operation, feels, is favorable to improving user's use and experiences.

Drawings

FIG. 1 is a schematic structural diagram of a floor brush according to a first embodiment of the present invention;

FIG. 2 is a bottom view of a floor brush according to an embodiment of the present invention;

FIG. 3 is a side view of a floor brush body with a gap open according to an embodiment of the present invention;

FIG. 4 is a side view of a floor brush body with a gap closed according to an embodiment of the present invention;

FIG. 5 is an exploded view of a body of a floor brush according to an embodiment of the present invention;

FIG. 6 is a bottom view of a lower cover of the floor brush provided in accordance with one embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a lower cover of a floor brush according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of the first guide portion and the second guide portion when the notch is opened according to the first embodiment of the present invention;

fig. 9 is a schematic structural diagram of the first guide portion and the second guide portion when the notch is closed according to the first embodiment of the present invention;

FIG. 10 is a side view of the first and second guides with the notch closed according to one embodiment of the present invention;

FIG. 11 is a cross-sectional view of a floor brush body with a notch open according to an embodiment of the present invention;

FIG. 12 is a cross-sectional view of a floor brush body with a gap closed according to an embodiment of the present invention;

FIG. 13 is a partial cross-sectional view of a floor brush provided in accordance with a second embodiment of the present invention;

FIG. 14 is a schematic structural diagram of a connector according to a second embodiment of the present invention;

FIG. 15 is an exploded view of a floor brush according to a third embodiment of the present invention without a cover;

fig. 16 is a sectional view of the crane and the step board provided in the third embodiment of the present invention in a state where they are assembled;

fig. 17 is a sectional view of the crane and the step board provided in the third embodiment of the invention in another state after being assembled;

fig. 18 is a sectional view of a crane provided in the third embodiment of the present invention.

Wherein:

100. a floor brush body; 101. an air suction passage; 200. a connecting tube assembly;

11. a lower cover of the floor brush; 111. a notch; 112. an avoidance groove; 113. a chute; 114. a guide groove; 1141. a sliding groove; 1142. a positioning column; 115. connecting the pipe orifices; 12. an upper cover of the floor brush; 121. an installation port; 122. a limiting member; 131. a valve; 132. a second guide portion; 1321. a guide slope; 1322. a flat top surface; 133. a guide rib; 141. a toggle piece; 142. a first guide portion; 15. a bottom roller; 16. a cleaning brush; 17. a lifting frame; 171. a low-level card slot; 172. a high-level card slot; 173. a yielding groove; 18. a pedal; 181. a butting end; 182. a first tread end; 183. a second tread end; 184. a limiting shoulder; 19. an abutting member;

21. a connecting member; 211. a connecting arm; 2111. a first connection portion; 2112. a second connecting portion; 2113. a third connecting portion; 212. a support member; 22. supporting the rollers; 23. a hose; 24. a connecting head.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Example one

The embodiment provides a floor brush with adjustable moving resistance, which can be used in a dust collector, and the floor brush can suck dust, hair and other sundries on the ground into the dust collector by dragging back and forth on the ground so as to achieve the effect of cleaning the ground.

As shown in fig. 1 and 2, the floor brush includes a floor brush body 100 and a connecting tube assembly 200. The bottom of the floor brush body 100 is provided with a suction passage 101, and the suction passage 101 is connected with the cleaner body through a connecting pipe assembly 200. When the floor brush works, a relatively closed space is formed between the air suction channel 101 and the ground, and negative pressure is generated in the air suction channel 101 under the action of the dust collector body, so that sundries on the ground corresponding to the air suction channel 101 are sucked into the dust collector body through the connecting pipe assembly 200.

In this embodiment, the floor brush moves back and forth when in use, the size of the floor brush body 100 along the left-right direction is large, and the air suction channel 101 extends along the length direction of the floor brush body 100, which is beneficial to improving the effective cleaning area of the floor brush.

In order to improve the dust removing effect, the floor brush body 100 further comprises a cleaning brush, the cleaning brush is arranged on the front side and the rear side of the bottom of the floor brush body, and impurities such as dust on the ground can be swept into the air suction channel 101 by the cleaning brush, so that the cleaning effect of the floor brush is improved.

When the floor brush moves back and forth on the ground, the bottom surface of the floor brush is in contact with the ground, and the friction force is large in the movement process. In order to save more labor when the user operates, the bottom roller 15 is rotatably arranged on the bottom surface of the floor brush body 100, and the friction force when the floor brush is used is favorably reduced through the rolling contact between the bottom roller 15 and the ground.

For the space on the ground of reasonable layout, the width of the air suction channel 101 is gradually reduced from the middle to the left and right ends, and the bottom rollers 15 are arranged at the left and right ends of the floor brush body 100, so that the influence of the bottom rollers 15 on the effective cleaning area of the floor brush body 100 is avoided. In the present embodiment, the bottom roller 15 is disposed at the rear side of the air suction passage 101, and it is possible to prevent impurities such as dust and hair from being caught in the bottom roller 15.

It can be understood that the higher the vacuum degree between the floor brush body 100 and the ground, the better the dust removing effect of the floor brush, and correspondingly, the greater the resistance force the floor brush receives when moving back and forth on the ground. In order to meet different requirements of users, the floor brush can be switched between low moving resistance and high dust removal capacity in the embodiment, so that the requirements of the users are better met.

Specifically, as shown in fig. 3 and 4, a notch 111 is formed in one side of the floor brush body 100, the notch 111 is communicated with the air suction channel 101, a valve 131 is movably connected to the floor brush body 100, and the valve 131 can close or open the notch 111. When the valve 131 opens the gap 111, the vacuum channel on the bottom surface of the floor brush is communicated with the outside through the gap 111, so that the vacuum degree between the vacuum channel and the ground is low, correspondingly, the resistance of the floor brush during moving is small, and the user operation is more labor-saving. When the valve 131 closes the gap 111, the vacuum degree between the vacuum channel on the bottom surface of the floor brush and the ground is high, and the dust removing capability of the floor brush is high, which is beneficial to improving the ground cleaning effect.

The position switching of the existing valve is realized through a rotating mechanism or a pressing type button, the rotating mechanism occupies the effective cleaning area of the floor brush, the operation hand feeling of the pressing type button is poor, and the use experience of a user is influenced.

In order to solve the above problem, as shown in fig. 5, in the present embodiment, a toggle member 141 is slidably disposed on the floor brush body 100, and the toggle member 141 can be slidably switched between a first position and a second position relative to the floor brush body 100 and drive the valve 131 to move relative to the floor brush body 100 so as to open or close the notch 111.

To facilitate the communication of the gap 111 with the suction channel 101, the gap 111 is provided on the left and right sides of the floor brush. Each notch 111 is provided with a valve 131 and a toggle member 141. In this embodiment, all set up breach 111 through the left and right sides at scrubbing brush body 100, can guarantee that valve 131 opens or the closed condition, the vacuum in the passageway 101 of breathing in is even relatively, is favorable to the scrubbing brush to slide along ground smoothly.

In other embodiments, the notch 111 may be provided on the front side, or only on the left or right side.

In this embodiment, the toggle member 141 is provided with a first guiding portion 142, the valve 131 is provided with a second guiding portion 132, when the toggle member 141 is toggled, the toggle member 141 drives the first guiding portion 142 to slide, and the first guiding portion 142 is in sliding contact with the second guiding portion 132, so that the valve 131 is driven to move by pushing the second guiding portion 132, and the position of opening or closing the notch 111 is switched. The valve 131 is opened and closed by the sliding and abutting of the first guide part 142 and the second guide part 132, and the valve is simple in structure and beneficial to reducing cost.

In order to improve the appearance of the floor brush, the stirring member 141, the first guiding portion 142 and the second guiding portion 132 are disposed in the floor brush body 100, and one end of the stirring member 141 extends out of the floor brush body 100 for the convenience of operation of a user. As shown in fig. 6, the bottom of the floor brush body 100 is provided with a sliding slot 113, and the bottom end of the toggle member 141 is provided with a toggle end, which extends out of the floor brush body 100 from the sliding slot 113 and can slide along the sliding slot 113. Through will dialling the end setting in the bottom of scrubbing brush body 100, can reach the effect of hiding and dialling the end, the scrubbing brush outward appearance is better, and can dial the end and be bumped by the mistake.

In order to avoid the interference of the poking end with the movement of the floor brush body 100 relative to the ground, the bottom of the floor brush body 100 is concavely provided with an avoiding groove 112, and the sliding groove 113 is arranged in the avoiding groove 112, so that the bottom end of the poking end does not protrude out of the avoiding groove 112, and the interference problem is eliminated.

In order to reduce the size requirement of the space required by the stirring member 141 and the valve 131 when moving on the floor brush body 100, the stirring member 141 can move horizontally relative to the floor brush body 100, and the increase of the height of the floor brush body 100 is avoided.

The distance between the air suction channel 101 and the ground is gradually reduced from the middle to two sides, that is, the distance between the upper cover 12 and the lower cover 11 of the floor brush is larger at two ends and smaller at the middle, and the width of the air suction channel 101 is gradually reduced from the middle to two ends. Therefore, the stirring piece 141 and the valve 131 are arranged close to the left end and the right end of the floor brush body 100, and the installation requirements of the stirring piece 141 and the valve 131 can be met on the basis of not changing the size of the floor brush body 100.

Specifically, the poking piece 141 moves along the width direction of the floor brush body 100, so as to avoid affecting the size of the air suction channel 101; the valve 131 can slide in a vertical direction with respect to the brush body 100, and requires a small installation space and a small moving space compared to a rotary opening.

The valve 131 has a reset function, so that after the toggle member 141 slides from the second position to the first position, the valve 131 can be automatically reset to open the notch 111. Specifically, the valve 131 and the lower cover 11 of the floor brush may be connected by an elastic member, and the elastic force of the elastic member drives the valve 131 to move in a direction of opening the notch 111. Wherein, the elastic member may be a spring.

The upper cover 12 of the floor brush is provided with an installation opening 121 at a position corresponding to the notch 111, an opening of the installation opening 121 is arranged downwards, and the valve 131 is arranged in the installation opening 121 in a sliding manner. When the toggle member 141 slides from the first position to the second position, the toggle member 141 drives the first guide portion 142 to slide, and pushes the valve 131 to slide downward through the second guide portion 132, so that the valve 131 slides downward from the upper portion of the mounting opening 121 to cover the notch 111, thereby closing the notch 111; when the toggle member 141 slides from the second position to the first position, the toggle member 141 drives the first guiding portion 142 to slide, and the valve 131 automatically resets and slides upward from the notch 111 to the upper portion of the mounting opening 121, thereby opening the notch 111. In the embodiment, the valve 131 can be accommodated by arranging the mounting opening 121, so that the structure of the floor brush is more compact, and the appearance of the floor brush is attractive; when the valve 131 is positioned above the mounting opening 121, the top surface of the valve 131 abuts against the side wall of the mounting opening 121, and the valve 131 and the second guide portion 132 can be restricted from sliding upward to an extreme position.

As shown in fig. 7, in order to limit the sliding direction of the first guide portion 142 and the second guide portion 132, the guide groove 114 is provided on the lower cover 11 of the floor brush, the first guide portion 142 and the second guide portion 132 are provided in the corresponding guide groove 114, and the sliding direction of the first guide portion 142 and the second guide portion 132 is guided by the guide groove 114, so that the first guide portion 142 and the second guide portion 132 are prevented from shaking in the floor brush body 100.

Alternatively, as shown in fig. 7 to 10, one of the second guide portion 132 and its corresponding guide groove 114 is provided with a guide rib 133, and the other is provided with a sliding groove 1141, and the guide rib 133 can slide along the sliding groove 1141, thereby further guiding the sliding direction of the second guide portion 132. In this embodiment, the two opposite sides of the second guiding portion 132 are provided with guiding ribs 133, and the guiding groove 114 corresponding to the second guiding portion 132 is provided with a sliding groove 1141.

In this embodiment, the top end of the toggle member 141 abuts against the upper ground brush cover 12, and the bottom end of the toggle member 141 abuts against the lower ground brush cover 11, so as to limit the sliding of the toggle member 141 along the vertical direction. The second guide portion 132 restricts the second guide portion 132 from moving in the horizontal direction by its corresponding guide groove 114.

In order to ensure that the positions of the first guide part 142 and the second guide part 132 are not moved when the valve 131 is in a state of opening or closing the notch 111, when the toggle member 141 slides from the first position to the second position, the first guide part 142 slides to the top of the second guide part 132 to abut against the second guide part 132 downwards, so that the second guide part 132 is prevented from sliding upwards under the action of the elastic member while pushing the valve 131 downwards to close the notch 111; the first guide part 142 receives the upward force applied by the second guide part 132, so that the static friction force between the first guide part 142 and the second guide part 132 is greater than the horizontal force received by the first guide part 14 in the state of no artificial touch, and therefore, the position of the first guide part 142 along the horizontal direction is unchanged, and the first guide part 142 cannot vertically slide due to the limit of the upper cover 12 and the lower cover 11 of the floor brush, so that the position of the first guide part 142, namely the position of the toggle member 141 is unchanged

Specifically, the first guiding portion 142 is disposed on a side of the toggle member 141 close to the valve 131, the second guiding portion 132 includes a guiding inclined surface 1321 and a flat top surface 1322 connected to the guiding inclined surface 1321, and a height of the guiding inclined surface 1321 gradually increases along a direction close to the flat top surface 1322. When the toggle member 141 is located at the first position, as shown in fig. 11, the first guide portion 142 abuts against the bottom of the guide inclined surface 1321; when the toggle member 141 slides from the first position to the second position, as shown in fig. 12, the first guiding portion 142 slides upward relative to the guiding inclined surface 1321, and pushes the second guiding portion 132 to slide downward until the first guiding portion 142 slides onto the flat top surface 1322, and the valve 131 is located at the lowest position to close the notch 111. When the toggle member 141 moves from the second position to the first position, the first guide portion 142 is separated from the flat top surface 1322, the valve 131 gradually slides upward under the action of the elastic member, the second guide portion 132 pushes the first guide portion 142 to slide, and the toggle member 141 is further assisted to be pushed back to the first position.

In order to facilitate the installation of the spring, a positioning column 1142 is further arranged on the lower cover 11 of the floor brush, a limiting groove is arranged at the bottom of the second guide part 132, the spring is sleeved outside the positioning column 1142, and the top of the spring is clamped into the limiting groove.

In this embodiment, the first guiding portion 142 and the toggle member 141 are integrally formed, and the second guiding portion 132 and the valve 131 are integrally formed, which is beneficial to reducing the number of parts of the floor brush, and has a simple structure and convenient rotation and assembly.

Example two

The embodiment provides a floor brush which is further improved on the basis of the first embodiment so as to have high-efficiency dust removing capability.

As shown in fig. 1, 2 and 13, the connection pipe assembly 200 includes a hose 23, a connection pipe 115 is provided on the floor brush body 100, the connection pipe 115 is communicated with the suction passage 101, one end of the hose 23 is connected with the connection pipe 115, and the other end is used for connecting a dust suction pipe of a dust collector.

In order to facilitate the connection between the hose 23 and the dust suction pipe, the connecting pipe assembly 200 further includes a connector 24, the connector 24 is a rigid structure, one end of the connector 24 is connected to the hose 23, and the other end is connected to the dust suction pipe.

The joint pipe assembly 200 further includes a joint 21 and a support roller 22. The connector 24 is installed on the connecting piece 21, the front end of the connecting piece 21 is hinged to the floor brush body 100, and the rear end of the connecting piece 21 is rotatably provided with the supporting roller 22, so that the connecting piece 21 can support the hose 23 and can rotate relative to the floor brush body 100 under the driving of the dust collection pipe. By providing the supporting roller 22, the friction force of the floor brush during use can be further reduced.

When the floor brush is used, a user drives the floor brush to move back and forth through the dust suction pipe of the handheld dust collector. In the process of pulling back the floor brush, the acting force applied to the dust suction pipe by the user has an upward component force, so that the floor-sticking effect of the floor brush body 100 is poor, the vacuum degree between the floor brush body 100 and the ground is an important factor influencing the dust removal capability of the floor brush, and the dust removal effect of the floor brush in the process of pulling back is poor.

In order to solve the above problem, the limiting member 122 is further disposed on the floor brush body 100, and the limiting member 122 can abut against the connecting member 21 when the connecting member 21 rotates upward to a certain angle relative to the floor brush body 100, so as to limit the maximum upward rotation angle of the connecting member 21 relative to the floor brush body 100, and thus the hinge point of the connecting member 21 and the floor brush body 100 is always higher than the axis of the supporting roller 22.

Because of the rear end of connecting piece 21 passes through connector 24 and dust absorption union coupling, when the user draws back the scrubbing brush through the dust absorption pipe, the hinged end through connecting piece 21 and scrubbing brush body 100 is higher than the axis of supporting roller 22 all the time for when the rear end of connecting piece 21 upwards lifted up under the effort of dust absorption pipe transmission, the front end of connecting piece 21 has decurrent effort to scrubbing brush body 100, is favorable to scrubbing brush body 100 to press close to ground, thereby improves dust removal effect.

Specifically, the floor brush body 100 comprises a floor brush upper cover 12 and a floor brush lower cover 11, the floor brush upper cover 12 can be fixed on the floor brush lower cover 11 by a fastener such as a screw, and the suction passage 101 and the connecting nozzle 115 are both arranged on the floor brush lower cover 11, so that the top surface of the floor brush lower cover 11 has a convex structure. The front end of the connecting member 21 may be hinged to the top of the lower cover 11 of the floor brush, and the limiting member 122 may be disposed on the bottom surface of the upper cover 12 of the floor brush, so that the hinged end of the connecting member 21 and the limiting member 122 are hidden by the upper cover 12 of the floor brush, which is beneficial to improving the appearance of the floor brush.

In order to ensure that the hinged end of the connecting member 21 and the floor brush body 100 is higher than the axis of the supporting roller 22, the front end of the connecting member 21 may be hinged on the connecting nozzle 115, and the height of the front end of the connecting member 21 is increased by the structure of the connecting nozzle 115.

As shown in fig. 14, the connecting member 21 includes two connecting arms 211 oppositely disposed and a supporting member 212 connecting the two connecting arms 211. The front end of the connecting arm 211 is hinged to the top of the lower floor brush cover 11, the supporting roller 22 is rotatably disposed at the rear end of the connecting arm 211, the supporting member 212 is located between the two connecting arms 211 and respectively connected to the rear ends of the two connecting arms 211, and the front end of the connecting head 24 is rotatably connected to the connecting arms 211. When the floor brush is connected with the dust suction pipe of the dust collector, the hose 23 is positioned between the two connecting arms 211, and the rear end of the hose 23 is arranged in the connecting head 24 in a penetrating way and is fixed with the connecting head 24. When a user operates the floor brush to move back and forth through the dust suction pipe, the connecting head 24 rotates relative to the connecting arm 211, the hose 23 can be bent in a self-adaptive mode through the matching of the connecting arm 211 and the connecting head 24, meanwhile, the position cannot move greatly, and therefore the connecting effect of the hose 23 and the connecting pipe opening 115 and the connecting head 24 is improved. The coupling head 24 is coupled to the rear end of the coupling arm 211 and is seated on the holder 212, thereby supporting the suction pipe.

In this embodiment, as shown in fig. 14, the connecting arm 211 is Z-shaped, the end of the connecting arm 211 hinged to the connecting pipe opening 115 is higher, and the end of the connecting arm 211 mounted to the supporting roller 22 is lower, so as to ensure that the hinged end of the connecting member 21 and the floor brush body 100 is higher than the axis of the supporting roller 22 according to the shape of the connecting arm 211.

Specifically, the connecting arm 211 includes a first connecting portion 2111, a second connecting portion 2112 and a third connecting portion 2113 which are connected in sequence, a front end of the first connecting portion 2111 is hinged to the connecting pipe orifice 115, a rear end of the third connecting portion 2113 is provided with the supporting roller 22, the first connecting portion 2111 and the third connecting portion 2113 are substantially parallel, and the second connecting portion 2112 extends downward from the rear end of the first connecting portion 2111, so that a height difference is generated between the first connecting portion 2111 and the third connecting portion 2113.

As shown in fig. 13 and 14, the bottom surface of the connecting arm 211 forms two right-angle structures, the right-angle structure at the front side is used for avoiding the connecting pipe orifice 115, and the right-angle structure at the rear side is used for avoiding the lower floor brush cover 11 at the rear side edge position of the lower floor brush cover 11, so as to avoid the connecting arm 211 interfering with the floor brush body 100 during the rotation process.

For further improving the ground effect of the floor brush body 100, the hinge point between the connecting piece 21 and the lower cover 11 of the floor brush is located in the middle area of the lower cover 11 of the floor brush, so as to avoid the edge of one side of the floor brush body 100 from upwarping, which is beneficial to improving the ground effect of the floor brush body 100.

EXAMPLE III

The embodiment provides a floor brush capable of efficiently removing dust, which is further improved on the basis of the first embodiment and the second embodiment. As shown in fig. 15, a lifting frame 17 is further arranged between the lower cover 11 and the upper cover 12, the lifting frame 17 can slide along the vertical direction relative to the lower cover 11, the cleaning brush 16 is arranged on the lifting frame 17, and a through hole is arranged on the lower cover 11 corresponding to the cleaning brush 16. The cleaning brush 16 can be driven to contact with or lift off the ground through the through hole by the lifting frame 17.

The floor brush in this embodiment can switch different states of the cleaning brush 16 according to the user's requirement. When the cleaning brush 16 is lifted off the ground, the floor brush is not contacted with the ground, so that the friction force generated when the floor brush moves can be reduced, and the operation of a user is more labor-saving; when the cleaning brush 16 contacts with the ground, the cleaning brush 16 can assist in sweeping dust and other impurities on the ground, which is beneficial to improving the cleaning effect of the ground brush.

In this embodiment, the cleaning brush 16 has densely distributed bristles, so that the cleaning brush 16 not only can sweep the bottom surface, but also can improve the sealing performance between the floor brush and the ground through the contact between the bristles and the ground, and further improve the cleaning effect of the floor brush.

In order to prevent the bristles from scratching the floor, the bristles of the cleaning brush 16 have certain flexibility, so that the floor is prevented from being scratched when the cleaning brush 16 is lifted or lowered along with the lifting frame 17.

In order to switch the cleaning brush 16 between different states, a pedal 18 is movably connected to the floor brush body 100. When the body of the cleaning brush 16 needs to be switched, a user can step on the pedal 18, the pedal 18 moves relative to the floor brush body 100, and the lifting frame 17 can be driven to lift, so that the cleaning brush 16 extends out of the floor brush body 100 through the through hole to be in contact with the ground or lift off the ground.

Specifically, the middle portion of the step 18 is hinged to the lower brush cover 11, and the top portion of the step 18 protrudes out of the upper brush cover 12 so as to be stepped on by the user. The pedal 18 is rotatably connected with the lower cover 11 of the floor brush, so that the size of the floor brush in the height direction can be reduced, and the structure of the floor brush is more compact.

As shown in fig. 16-18, the pedal 18 is further provided with an abutting end 181, the lifting frame 17 is provided with a low-position engaging groove 171 and a high-position engaging groove 172 which are adjacently arranged, and the height of the bottom surface of the low-position engaging groove 171 is lower than that of the bottom surface of the high-position engaging groove 172. Taking the state shown in fig. 16 as an example, when the pedal 18 is not stressed, the first stepping end 182 of the pedal 18 is lifted upwards, and the abutting end 181 is clamped in the low-level clamping groove 171, because the height from the ground of the lower cover 11 of the floor brush and the height from the ground of the rotation point of the pedal 18 and the lower cover 11 of the floor brush are unchanged, the height of the lifting frame 17 is higher, and the cleaning brush 16 is lifted from the ground; when a user steps on the first stepping end 182 of the pedal 18, the abutting end 181 of the pedal 18 rotates clockwise in the state shown in fig. 16, the abutting end 181 is lifted away from the low-level clamping groove 171 and clamped into the high-level clamping groove 172 as shown in fig. 17, and in the process, the abutting end 181 pushes the lifting frame 17 to move downwards, so that the cleaning brush 16 extends out of the floor brush body 100 through the through hole and contacts with the ground.

In order to prevent the abutting end 181 from passing over the high-level engaging groove 172 when the first stepping end 182 is stepped, a limiting shoulder 184 is disposed at an end of the high-level engaging groove 172 away from the low-level engaging groove 171, and the limiting shoulder 184 can prevent the abutting end 181 from moving to an end of the high-level engaging groove 172 away from the low-level engaging groove 171, so that the abutting end 181 is engaged with the high-level engaging groove 172.

When the pedal 18 is released, the second step end 183 is lifted up as shown in fig. 17 due to the abutment end 181 being caught in the high-position catching groove 172.

When the second stepping end 183 of the pedal 18 is stepped, the abutting end 181 rotates counterclockwise as shown in fig. 17, so that the abutting end 181 moves from the high-level engaging groove 172 to the low-level engaging groove 171, and the lifting frame 17 moves upward to drive the cleaning brush 16 to lift off the bottom surface.

To facilitate the switching of the abutting end 181 between the lower engaging groove 171 and the upper engaging groove 172, a sidewall of the lower engaging groove 171 adjacent to the upper engaging groove 172 is inclined to guide the abutting end 181 to move.

In order to reduce the space required when the step plate 18 is rotated, the middle of the step plate 18 is hinged to the lower cover 11 of the floor brush, and the abutting end 181 is provided near the hinged position of the step plate 18 and the lower cover 11 of the floor brush. In order to avoid the interference between the lower end of the pedal 18 and the lifting frame 17, the lifting frame 17 is further provided with a yielding groove 173. When the abutting end 181 is located in the low-position engaging groove 171, the height of the lifting frame 17 is high, the distance between the lower end of the pedal 18 and the lifting frame 17 is small, and the lower end of the pedal 18 can extend into the avoiding groove 173 to avoid interference with the lifting frame 17.

In this embodiment, the lifting frame 17 is elastically connected with the lower cover 11 of the floor brush or the upper cover 12 of the floor brush, so that the lifting frame 17 can slide upwards to reset without external force driving. Alternatively, the lifting frame 17 and the lower cover 11 of the floor brush can be connected through a compression spring, or the lifting frame 17 and the upper cover 12 of the floor brush can be connected through an extension spring.

In order to enable the lifting frame 17 to be lifted smoothly under the action of the pedal 18, as shown in fig. 5, the lower end of the pedal 18 can be further connected with an abutting piece 19, the abutting piece 19 is in a U shape, the whole abutting piece 19 extends along the length direction of the floor brush, two longitudinal beams of the abutting piece 19 are rotatably connected with the lower cover 11 of the floor brush, one longitudinal beam of the abutting piece 19 is connected with the pedal 18, so that the pedal 18 rotates to drive the abutting piece 19 to rotate relative to the lower cover 11 of the floor brush, and the height of the transverse beam is changed to abut against the lifting frame 17.

Example four

The present embodiment provides a vacuum cleaner, which comprises a machine body and a floor brush in any of the above embodiments, wherein the machine body is connected with a floor brush body 100 through a connecting pipe assembly 200.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. A floor brush with adjustable moving resistance comprises a floor brush body (100), wherein the bottom of the floor brush body (100) is provided with an air suction channel (101), and the floor brush is characterized in that one side of the floor brush body (100) is provided with a notch (111) communicated with the air suction channel (101);

the floor brush further comprises:

the valve (131) is arranged on the floor brush body (100) in a sliding mode, and the gap (111) is opened or closed;

the poking piece (141) can be switched between a first position and a second position in a sliding mode relative to the floor brush body (100), and drives the valve (131) to move relative to the floor brush body (100) so as to open or close the notch (111).

2. The adjustable moving resistance floor brush according to claim 1, wherein the toggle member (141) is provided with a first guide portion (142), the valve (131) is provided with a second guide portion (132), and the first guide portion (142) is in sliding contact with the second guide portion (132) so as to drive the valve (131) to slide relative to the floor brush body (100) through the toggle member (141).

3. The adjustable resistance to movement floor brush of claim 2, wherein the toggle member (141) moves in a horizontal direction with respect to the floor brush body (100), and the valve (131) is movable in a vertical direction with respect to the floor brush body (100).

4. -floor brush according to claim 3, characterized in that said valve (131) has a return function;

when the toggle piece (141) slides from the first position to the second position, the first guide part (142) slides to the top of the second guide part (132) to push the valve (131) to slide downwards to close the notch (111);

when the toggle piece (141) slides from the second position to the first position, the valve (131) slides upwards to reset so as to open the notch (111).

5. The adjustable moving resistance floor brush according to claim 4, wherein the second guide portion (132) comprises a guide slope (1321) and a flat top surface (1322) connected to the guide slope (1321), the height of the guide slope (1321) gradually increases in a direction approaching the flat top surface (1322);

when the toggle piece (141) is located at the first position, the first guide part (142) is abutted against the bottom of the guide inclined surface (1321); when the toggle piece (141) is located at the second position, the first guide portion (142) abuts against the flat top surface (1322).

6. The adjustable moving resistance floor brush according to claim 4, wherein the second guide portion (132) is connected to the floor brush body (100) by an elastic member to achieve the restoration of the valve (131).

7. The adjustable moving resistance floor brush according to claim 2, wherein the first guide portion (142) and the second guide portion (132) are provided in the floor brush body (100), and guide grooves (114) are provided in the floor brush body (100) corresponding to the first guide portion (142) and the second guide portion (132), respectively, to guide the sliding directions of the first guide portion (142) and the second guide portion (132).

8. A floor brush with adjustable moving resistance according to any one of claims 1-7, characterized in that the notches (111) are provided on two opposite sides of the floor brush body (100), and each notch (111) is provided with the valve (131) and the toggle member (141) correspondingly.

9. A floor brush with adjustable moving resistance according to any of claims 1-7, characterized in that the bottom of the floor brush body (100) is provided with an avoiding groove (112), the bottom end of the toggle member (141) is slidably arranged in the avoiding groove (112), and the bottom end of the toggle member (141) does not protrude out of the avoiding groove (112).

10. A vacuum cleaner comprising a floor brush as claimed in any one of claims 1 to 9 with adjustable resistance to movement.