CN212591909U

CN212591909U - Dust collector floor brush structure

Info

Publication number: CN212591909U
Application number: CN202020998125.9U
Authority: CN
Inventors: 周荣; 郑良宝
Original assignee: Ningbo Haiji Electric Appliance Co ltd
Current assignee: Ningbo Haiji Electric Appliance Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2021-02-26
Anticipated expiration: 2030-06-03

Abstract

The utility model discloses a dust collector floor brush structure. The novel floor brush comprises a bottom cover, an upper cover and a floor brush hanging head, wherein the bottom cover is installed on the upper cover, an air inlet groove is formed in the bottom cover, an air inlet is formed in the middle of the bottom of the air inlet groove, a brush frame and a lifting switch are arranged inside the upper cover, an air inlet channel matched with the air inlet is formed in the upper cover, the brush frame is installed inside the upper cover and is arranged between the bottom cover and the upper cover, a lifting spring is arranged between the brush frame and the upper cover, the lifting switch is arranged on the outer side of the upper cover and is connected with the brush frame, the air inlet channel is arranged in the middle of the brush frame, a brush strip cavity is formed between the bottom cover and the upper cover, floor brush strips are arranged on the brush frame, the floor brush strips are arranged in the brush strip cavity, a rear wheel assembly is arranged on the upper cover, the floor brush hanging head is installed on the upper cover and is communicated with. The utility model has the advantages that: the dust collecting device has the advantages of wide application range, improvement of dust collecting effect, strength increase, good positioning effect, good sealing effect and convenience in mounting and dismounting.

Description

Dust collector floor brush structure

Technical Field

The utility model relates to a dust catcher correlation technique field especially indicates a dust catcher scrubbing brush structure.

Background

The dust collector mainly comprises three parts of dust generation, dust collection and dust filtration, and generally comprises a series excitation commutator motor, a centrifugal fan, a dust filter (bag) and a dust collection accessory. The power of a typical vacuum cleaner is 400-1000W or more, and the power of a portable vacuum cleaner is 250W or less. The dust collector can remove dust and is mainly characterized in that an electric exhaust fan is arranged at the head of the dust collector. The rotating shaft of the exhaust fan is provided with an air impeller, after the air impeller is electrified, the exhaust fan can generate higher suction force and pressure at the rotating speed of 500 circles per second, air is discharged at high speed under the action of the suction force and the pressure, air in the dust suction part at the front end of the air fan continuously supplements the air in the air fan, instantaneous vacuum is generated inside the dust collector, negative pressure difference is formed between the air and the external atmospheric pressure, and air containing dust is sucked under the action of the negative pressure difference. The dust and other sundries sequentially pass through the carpet or the floor brush, the long connecting pipe, the bent pipe, the hose and the hose joint to enter the dust filtering bag, the dust and other sundries are retained in the dust filtering bag, and the air is purified by the filter disc and then is discharged from the tail part of the machine body.

The existing dust collector floor brush structure is usually only a single floor brush, and dust collection operation is carried out on the ground only through an air inlet, and the existing dust collector floor brush structure is generally not provided with wool tops; even though the wool tops are designed, the wool tops are fixedly designed, and cannot be dynamically adjusted according to actual conditions, so that the application range of the whole floor brush is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a dust collector floor brush structure with wide application range, which aims to overcome the defects in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a floor brush structure of a dust collector comprises a bottom cover, an upper cover and a floor brush hanging head, wherein the bottom cover is arranged on the upper cover, an air inlet groove is formed in the bottom cover, an air inlet is formed in the middle of the bottom of the air inlet groove, a brush frame and a lifting switch are arranged in the upper cover, an air inlet channel matched with the air inlet is formed in the upper cover, the brush frame is arranged in the upper cover and is arranged between the bottom cover and the upper cover, a lifting spring is arranged between the brush frame and the upper cover, the lifting switch is arranged on the outer side of the upper cover and is connected with the brush frame, the air inlet channel is arranged in the middle of the brush frame, a brush strip cavity is formed between the bottom cover and the upper cover, floor brush strips are arranged on the brush frame and are arranged in the brush strip cavity, a rear wheel assembly is arranged on the upper cover, the floor brush hanging head is arranged on the upper cover and is communicated with the air inlet channel, the upper cover, the bottom cover and the ground brush hanging head are all connected with the rear wheel assembly.

During the use, carry out the dust absorption operation through the air inlet duct on the bottom, and the inside design of upper cover wool top brush and lifting switch, the operation through lifting switch is used in the wool top brush for the scrubbing brush wool top on the wool top brush stretches out or the wool top intracavity of withdrawal between upper cover and bottom, and the extension and the withdrawal of scrubbing brush wool top are selected according to the dust absorption environment of reality, design like this and have reached the wide purpose of application scope.

Preferably, the air inlet groove is arranged on the front surface of the bottom cover, air inlet convex blocks are arranged at the left end and the right end of the air inlet groove, air inlet gaps are formed in the air inlet convex blocks, and the air inlet gaps are communicated with the air inlet groove. Through the design of the air inlet gap, the smooth air inlet of the air inlet groove can be ensured, and meanwhile, the dust on the two sides of the air inlet groove can be smoothly sucked.

Preferably, an electrostatic groove is formed in the front face of the bottom cover and is arranged on the outer side of the air inlet groove, an electrostatic strip is installed in the electrostatic groove, and the position where the electrostatic strip is located is arranged above the air inlet. Through the design of the static groove, static can be effectively prevented.

As preferred, just arrange the outside in the intake stack on the front of bottom and be equipped with the leather strap groove, the leather strap inslot be equipped with scrubbing brush leather strap, the leather strap inslot be equipped with a plurality of evenly distributed's spacing buckle, be equipped with the axis of rotation on one side of scrubbing brush leather strap, the axis of rotation arrange the leather strap inslot in and inject in the leather strap inslot through spacing buckle, the position at leather strap groove place is arranged in the below of air intake and is corresponding from top to bottom with the position at static groove place. Wherein: the floor brush leather strip is made of PVC soft material and can be elastically compressed. Scrubbing brush leather stripe arranges the leather stripe inslot in and carries on spacingly through spacing buckle, and scrubbing brush leather stripe makes its can the swing back and forth at the leather stripe inslot through the design of axis of rotation for the height of scrubbing brush leather stripe flushes with the bottom surface of inhaling the ash.

Preferably, the shape of the air inlet groove is trapezoidal, the upper bottom edge of the air inlet groove is close to the leather strip groove, the lower bottom edge of the air inlet groove is close to the electrostatic groove, the length of the upper bottom edge of the air inlet groove is smaller than that of the lower bottom edge of the air inlet groove, and the depth of the air inlet groove is gradually increased from one end close to the air inlet bump to one end close to the air inlet. The design makes the intake stack be the toper at the horizontal direction like this, and the vertical direction of intake stack is trapezoidal, and its aim at promotes dust collection effect better.

Preferably, a plurality of uniformly distributed connecting ribs are arranged on the back surface of the bottom cover and between the air inlet and the leather strip groove, arc-shaped grooves are formed in the connecting ribs, and the lifting switch is arranged in the arc-shaped grooves. Through the design of splice bar, can increase the intensity of bottom on the one hand, on the other hand and lifting switch location.

Preferably, the left side and the right side of the upper cover are provided with notches matched with the air inlet convex blocks, the air inlet is provided with an annular groove, and one port of the air inlet duct communicated with the air inlet is provided with a sealing flange matched with the annular groove. Through the design of the annular groove and the sealing flanging, when the bottom cover is matched with the upper cover, the air inlet groove is sealed when being connected with the air inlet duct, so that dust can not enter between the upper cover and the bottom cover; and the design of the notch and the air inlet lug ensures that a trapezoidal air duct is formed between the upper cover and the bottom cover, and ensures that dust can smoothly reach the air inlet.

Preferably, the front end of the brush holder is provided with a wool top groove, the floor brush wool top is arranged in the wool top groove, a plurality of limiting buckles which are uniformly distributed are arranged in the wool top groove, a limiting edge is arranged on one edge of the floor brush wool top, the limiting edge is arranged in the wool top groove and is limited in the wool top groove through a limiting buckle, the rear end of the brush frame is provided with a positioning fulcrum, the positioning fulcrum is provided with a positioning hole, the inner part of the upper cover is provided with a positioning column matched with the positioning hole, the lifting spring is arranged on the positioning column, one end of the lifting spring is arranged in the upper cover, the other end of the lifting spring is contacted with the positioning fulcrum, the middle of the brush holder is provided with a limiting hole, the inside of the upper cover is provided with a limiting holder corresponding to the limiting hole, the limiting hole is internally provided with a limiting rotating shaft, and the limiting frame is provided with a limiting groove corresponding to the limiting rotating shaft. The brush bristle can be conveniently mounted and dismounted through the design of the bristle groove and the limiting buckle; through the design of the positioning fulcrum, the positioning column and the lifting spring, the resetting of the brush holder can be facilitated, and the stroke of the brush holder is limited; the stroke of the brush holder is further limited by the structural design of the limiting hole and the limiting holder; the design of the whole brush frame enables the floor brush hair strips on the brush frame to be lifted up and down for different dust contact surfaces.

Preferably, the lifting switch comprises a lifting pedal and a lifting rotating shaft, the lifting switch is integrally formed, one end of the lifting rotating shaft is arranged at one side of the lifting pedal, the upper cover is provided with a lifting hole matched with the lifting pedal, the other end of the lifting rotating shaft and the other side of the lifting pedal are both provided with a shaft head, a shaft seat matched with the shaft head is arranged inside the upper cover, a plurality of supporting frames are arranged inside the upper cover, one end of each supporting frame is arranged inside the upper cover, the other end of the supporting frame is provided with a shaft groove matched with the lifting rotating shaft, the lifting rotating shaft is provided with a baffle plate, the brush holder is provided with a plurality of baffle holes, the baffle plates are evenly distributed with reinforcing ribs, a baffle groove matched with the baffle plates is arranged at the position between the limiting holes and the positioning pivot points, and one side of the baffle groove, which is close to the limiting holes, is provided with a limiting strip. Through the structural design of the lifting switch, the lifting switch is convenient to disassemble and assemble; and the design of baffle, fender groove and spacing strip can inject the displacement stroke of baffle to control the flexible of ground brush hair strip.

Preferably, the cross section of the air inlet duct is L-shaped, the air inlet duct comprises a first air duct and a second air duct, the first air duct and the second air duct are perpendicular to each other, one end of the first air duct is communicated with the air inlet, the other end of the first air duct is in arc transition connection with one end of the second air duct, and the other end of the second air duct is communicated with the floor brush hanging head. Through the circular arc transition design of the air inlet duct, smooth transition of the air duct is ensured.

Preferably, an air duct sealing ring is arranged between the second air duct and the ground brush hanging head, the air duct sealing ring is made of a thermal shrinkage elastomer material, and cross bars which are uniformly distributed are arranged on the outer side surface of the air duct sealing ring. Wherein: the air duct sealing ring is made of a thermal shrinkage elastomer PTV material, and the surface of the air duct sealing ring is designed into a transverse grid rail, so that the air duct sealing ring can be ensured to have enough elasticity.

Preferably, the scrubbing brush hanging head comprises a hanging head main body and a hanging head air inlet pipe, the hanging head main body is installed between the upper cover and the bottom cover, an air inlet hole is formed in the hanging head main body, the air channel sealing ring is installed between the second air channel and the air inlet hole, the hanging head air inlet pipe is installed on the hanging head main body and is rotatably connected with the hanging head main body, the hanging head air inlet pipe is L-shaped, the included angle of the hanging head air inlet pipe is 45 degrees, and the included angle range between the hanging head air inlet pipe on the scrubbing brush hanging head and the plane where the bottom cover is located is 25-65 degrees. The floor brush hanging head is connected with the air inlet pipe through the air duct sealing ring, and the elastic body of the air duct sealing ring is designed, so that the floor brush hanging head can be elastically adjusted in angle with the bottom cover.

As preferred, the string head main part on and arrange the position department at fresh air inlet place in and be equipped with sealing sleeve, sealing sleeve's cross sectional shape is waist type hole, sealing sleeve's maximum distance is unanimous with the diameter of fresh air inlet mutually, the wind channel sealing washer install between second wind channel and sealing sleeve, be equipped with positioning ring groove one and guide way on the inner wall of fresh air inlet, the guide way arrange in one of fresh air inlet serve and communicate with positioning ring groove one, be equipped with positioning ring groove two on the one end lateral surface of string head fresh air-supply line, positioning ring groove two in be equipped with annular rand, annular rand in positioning ring groove two and the downthehole positioning ring groove phase-match of fresh air inlet, annular rand on be equipped with the opening, it serves and is equipped with positioning baffle to hang head fresh air-supply line one that the fresh air-supply line was. Through the design of the sealing sleeve, the air duct sealing ring can be in sealing connection; the guide groove is designed, so that the air inlet pipe of the hanging head can be conveniently installed; the design of the first positioning ring groove, the second positioning ring groove and the annular retainer ring can facilitate the sealing and the rotating connection between the hanging head air inlet pipe and the hanging head body; the design of the positioning baffle is to limit the position of the hanging head air inlet pipe.

Preferably, the right and left sides of the electrostatic tank on the front of the bottom cover are provided with wheel grooves, the right and left sides of the wheel grooves are provided with mounting grooves, the wheel grooves are internally provided with front wheels, and the right and left sides of the front wheels are provided with mounting columns matched with the mounting grooves. Through the cooperation design of front wheel and rear wheel subassembly, guarantee this scrubbing brush's bottom surface and the ground of dust and use the wheel contact, guarantee this scrubbing brush and drag in a flexible way subaerial.

Preferably, the distance between the plane of the bottom cover and the plane formed by the front wheels and the rear wheel assembly is 0.6-1.5 mm. Through the structural design, the dust collection effect is ensured while the floor brush is flexibly dragged on the ground.

Preferably, the rear wheel assembly comprises a rear roller and a metal shaft, the upper cover, the bottom cover and the floor brush hanging head are respectively provided with a metal shaft seat, the upper cover is provided with a wheel groove matched with the rear roller, the rear roller is arranged at two ends of the metal shaft and is arranged in the wheel groove, and the metal shaft seat of the upper cover, the metal shaft seat of the bottom cover and the metal shaft seat of the floor brush hanging head are arranged on the metal shaft. The strength of the rear wheel assembly is ensured through the design of the metal shaft.

As preferred, the back gyro wheel on be equipped with the back wheel apron, the both ends of metal axle all are equipped with the annular, the centre of back gyro wheel is equipped with the axle cassette, the axle cassette constitute by a plurality of buckles, the metal axle install in the axle cassette, the buckle arrange in the annular, the back wheel apron install on the back gyro wheel, the back wheel apron on be equipped with the apron hole, the apron hole of back wheel apron is installed on the axle cassette of back gyro wheel. Through the design of buckle and back wheel apron, guaranteed on the one hand that the back gyro wheel does not drop, on the other hand prevents that the dust from entering into in the back gyro wheel.

The utility model has the advantages that: according to the dust absorption environment of reality to select, application scope is wide, the air inlet is smooth, can effectually prevent static, promote the dust absorption effect better, increase intensity, positioning effect is good, it is sealed effectual, can easy to assemble and dismantle, the oscilaltion can be realized to the scrubbing brush wool top, a dust contact surface for the difference, the circular arc transition design of air inlet duct, the smooth transition in wind channel has been guaranteed, the scrubbing brush hangs the head can and carries out elastic angle modulation between the bottom, when having guaranteed that this scrubbing brush drags in a flexible way subaerial, the dust absorption effect has been guaranteed again.

Drawings

Fig. 1 and 10 are schematic structural views of the present invention;

fig. 2 is a schematic diagram of the explosion structure of the present invention;

fig. 3 and 4 are schematic structural views of the bottom cover;

FIG. 5 is a schematic structural view of the upper cover;

FIG. 6 is a schematic view of the structure of the brush holder;

FIG. 7 is a schematic view of the construction of the lift switch;

FIG. 8 is a schematic structural view of a ground brush head;

fig. 9 is a schematic structural view of the rear wheel assembly.

In the figure: 1. the device comprises a bottom cover, 2 parts of an upper cover, 3 parts of a ground brush hanging head, 4 parts of a lifting switch, 5 parts of a hanging head air inlet pipe, 6 parts of a hanging head main body, 7 parts of a sealing sleeve, 8 parts of an air duct sealing ring, 9 parts of a transverse grid, 10 parts of a rear wheel component, 11 parts of a brush frame, 12 parts of a limiting edge, 13 parts of a ground brush hair strip, 14 parts of a rotating shaft, 15 parts of a ground brush leather strip, 16 parts of a front wheel, 17 parts of a connecting rib, 18 parts of an air inlet, 19 parts of a wheel groove, 20 parts of a mounting groove, 21 parts of an air inlet groove, 22 parts of an electrostatic groove, 23 parts of an arc-shaped groove, 24 parts of a leather strip groove, 25 parts of a limiting buckle, 26 parts of an air inlet lug, 27 parts of an air inlet notch, 28 parts of a notch, 29 parts of a shaft seat, 30 parts of a lifting hole, 31 parts of a supporting frame, 37. the device comprises a first air duct, 38, a second air duct, 39, a wheel groove, 40, a limiting buckle, 41, a wool top groove, 42, a limiting rotating shaft, 43, a limiting hole, 44, a positioning hole, 45, a positioning fulcrum, 46, a retaining groove, 47, a limiting strip, 48, a lifting pedal, 49, a baffle, 50, a lifting rotating shaft, 51, a reinforcing rib, 52, a shaft head, 53, a second positioning ring groove, 54, an air inlet hole, 55, a guide groove, 56, a positioning baffle, 57, a first positioning ring groove, 58, a rear roller, 59, a shaft clamping seat, 60, a buckle, 61, a rear wheel cover plate, 62, a cover plate hole, 63, a ring groove, 64, a metal shaft, 65, a limiting groove, 66, a wool top cavity, 67, an annular groove and 68, and sealing flanges.

Detailed Description

The invention is further described with reference to the accompanying drawings and the detailed description.

In the embodiment shown in fig. 1, 2 and 10, a floor brush structure of a vacuum cleaner comprises a bottom cover 1, an upper cover 2 and a floor brush hanging head 3, wherein the bottom cover 1 is mounted on the upper cover 2, the bottom cover 1 is provided with an air inlet slot 21, the middle of the bottom of the air inlet slot 21 is provided with an air inlet 18, the upper cover 2 is internally provided with a brush holder 11 and a lifting switch 4, the upper cover 2 is provided with an air inlet duct 33 matched with the air inlet 18, the brush holder 11 is mounted inside the upper cover 2 and is arranged between the bottom cover 1 and the upper cover 2, the lifting switch 4 is arranged between the brush holder 11 and the upper cover 2 and is connected with the brush holder 11, the air inlet duct 33 is arranged at the middle position of the brush holder 11, a brush strip cavity 66 is arranged between the bottom cover 1 and the upper cover 2, the floor brush strips 13 are arranged in the brush strip cavity 66, the upper cover 2 is provided with a rear wheel assembly 10, the floor brush hanging head 3 is mounted on the upper cover 2 and is communicated with the air inlet duct 33, the upper cover 2, the bottom cover 1 and the ground brush hanging head 3 are all connected with the rear wheel assembly 10.

As shown in fig. 2, 3 and 4, the air inlet slot 21 is disposed on the front surface of the bottom cover 1, the left and right ends of the air inlet slot 21 are provided with air inlet bumps 26, the air inlet bumps 26 are provided with air inlet notches 27, and the air inlet notches 27 are communicated with the air inlet slot 21. An electrostatic groove 22 is arranged on the front surface of the bottom cover 1 and outside the air inlet groove 21, an electrostatic strip is arranged in the electrostatic groove 22, and the position of the electrostatic strip is arranged above the air inlet 18. The outer side of the air inlet groove 21 is provided with a leather strip groove 24 on the front face of the bottom cover 1, a scrubbing brush leather strip 15 is arranged in the leather strip groove 24, a plurality of evenly distributed limiting buckles 25 are arranged in the leather strip groove 24, one side of the scrubbing brush leather strip 15 is provided with a rotating shaft 14, the rotating shaft 14 is arranged in the leather strip groove 24 and limited in the leather strip groove 24 through the limiting buckles 25, and the position of the leather strip groove 24 is arranged below the air inlet 18 and corresponds to the position of the static electricity groove 22. The shape of the air inlet groove 21 is trapezoidal, the upper bottom edge of the air inlet groove 21 is close to the strip groove 24, the lower bottom edge of the air inlet groove 21 is close to the electrostatic groove 22, the length of the upper bottom edge of the air inlet groove 21 is smaller than that of the lower bottom edge of the air inlet groove 21, and the depth of the air inlet groove 21 is gradually increased from one end close to the air inlet bump 26 to one end close to the air inlet 18. A plurality of evenly distributed connecting ribs 17 are arranged on the back of the bottom cover 1 and between the air inlet 18 and the leather strip groove 24, circular arc-shaped grooves 23 are formed in the connecting ribs 17, and the lifting switch 4 is arranged in the circular arc-shaped grooves 23. As shown in fig. 5, the left and right sides of the upper cover 2 are provided with notches 28 matching with the air inlet protrusions 26, the air inlet 18 is provided with an annular groove 67, and one port of the air inlet duct 33 communicating with the air inlet 18 is provided with a sealing flange 68 matching with the annular groove 67. Wheel grooves 19 are formed in the front face of the bottom cover 1 and are arranged on the left side and the right side of the electrostatic groove 22, mounting grooves 20 are formed in the left side and the right side of the wheel grooves 19, front wheels 16 are arranged in the wheel grooves 19, and mounting columns matched with the mounting grooves 20 are arranged on the left side and the right side of the front wheels 16. The distance between the plane of the bottom cover 1 and the plane formed by the front wheels 16 and the rear wheel assembly 10 is 0.6mm-1.5 mm.

As shown in figure 5 of the drawings, as shown in fig. 6, a bristle groove 41 is arranged at the front end of the brush holder 11, the floor brush bristle 13 is arranged in the bristle groove 41, a plurality of limiting buckles 40 are uniformly distributed in the bristle groove 41, a limiting edge 12 is arranged on one side of the floor brush bristle 13, the limiting edge 12 is arranged in the bristle groove 41 and is limited in the bristle groove 41 through the limiting buckles 40, a positioning fulcrum 45 is arranged at the rear end of the brush holder 11, a positioning hole 44 is arranged on the positioning fulcrum 45, a positioning column 35 matched with the positioning hole 44 is arranged in the upper cover 2, a lifting spring is arranged on the positioning column 35, one end of the lifting spring is arranged in the upper cover 2, the other end of the lifting spring is in contact with the positioning fulcrum 45, a limiting hole 43 is arranged in the middle of the brush holder 11, a limiting holder 34 corresponding to the limiting hole 43 is arranged in the upper cover 2, a limiting rotating shaft 42 is arranged in the limiting hole 43, and a limiting groove 65 corresponding to the limiting rotating.

As shown in figure 5 of the drawings, as shown in fig. 7, the lifting switch 4 includes a lifting pedal 48 and a lifting rotating shaft 50, the lifting switch 4 is integrally formed, one end of the lifting rotating shaft 50 is installed at one side of the lifting pedal 48, a lifting hole 30 matched with the lifting pedal 48 is formed in the upper cover 2, shaft heads 52 are respectively arranged at the other end of the lifting rotating shaft 50 and the other side of the lifting pedal 48, a shaft seat 29 matched with the shaft heads 52 is arranged in the upper cover 2, a plurality of supporting frames 31 are arranged in the upper cover 2, one end of each supporting frame 31 is installed in the upper cover 2, a shaft groove 32 matched with the lifting rotating shaft 50 is formed in the other end of each supporting frame 31, a baffle plate 49 is arranged on the lifting rotating shaft 50, a plurality of reinforcing ribs 51 uniformly distributed are arranged on the baffle plate 49, a blocking groove 46 matched with the baffle plate 49 is arranged at a position between the limiting hole 43 and the positioning fulcrum 45 on the brush holder 11, and a limiting strip.

As shown in fig. 5, the cross section of the air inlet duct 33 is L-shaped, the air inlet duct 33 includes a first air duct 37 and a second air duct 38, the first air duct 37 and the second air duct 38 are perpendicular to each other, one end of the first air duct 37 is communicated with the air inlet 18, the other end of the first air duct 37 is in arc transition connection with one end of the second air duct 38, and the other end of the second air duct 38 is communicated with the floor brush hanging head 3. An air duct sealing ring 8 is arranged between the second air duct 38 and the ground brush hanging head 3, the air duct sealing ring 8 is made of thermal shrinkage elastomer materials, and cross bars 9 which are uniformly distributed are arranged on the outer side surface of the air duct sealing ring 8.

As shown in fig. 8, the floor brush hanging head 3 comprises a hanging head main body 6 and a hanging head air inlet pipe 5, the hanging head main body 6 is installed between the upper cover 2 and the bottom cover 1, the hanging head main body 6 is provided with an air inlet hole 54, an air duct sealing ring 8 is installed between the second air duct 38 and the air inlet hole 54, the hanging head air inlet pipe 5 is installed on the hanging head main body 6 and rotatably connected with the hanging head main body 6, the hanging head air inlet pipe 5 is L-shaped, the included angle of the hanging head air inlet pipe 5 is 45 degrees, and the included angle between the hanging head air inlet pipe 5 on the floor brush hanging head 3 and the plane where the bottom cover 1 is located is 25-65 degrees. The hanging head main body 6 is provided with a sealing sleeve 7 at the position of the air inlet hole 54, the cross section of the sealing sleeve 7 is a kidney-shaped hole, the maximum distance of the sealing sleeve 7 is consistent with the diameter of the air inlet hole 54, an air duct sealing ring 8 is installed between the second air duct 38 and the sealing sleeve 7, the inner wall of the air inlet hole 54 is provided with a first positioning ring groove 57 and a guide groove 55, the guide groove 55 is arranged at one end of the air inlet hole 54 and communicated with the first positioning ring groove 57, the outer side surface of one end of the hanging head air inlet pipe 5 is provided with a second positioning ring groove 53, an annular clamping ring is arranged in the second positioning ring groove 53, the annular clamping ring in the second positioning ring groove 53 is matched with the first positioning ring groove 57 in the air inlet hole 54, an opening is arranged on the annular clamping ring, and one end of the hanging.

As shown in fig. 9, the rear wheel assembly 10 includes a rear roller 58 and a metal shaft 64, the upper cover 2, the bottom cover 1 and the floor brush hanging head 3 are all provided with metal shaft seats 36, the upper cover 2 is provided with wheel grooves 39 matched with the rear roller 58, the rear rollers 58 are installed at two ends of the metal shaft 64 and are placed in the wheel grooves 39, and the metal shaft 64 is installed on the metal shaft seats 36 of the upper cover 2, the metal shaft seats 36 of the bottom cover 1 and the metal shaft seats 36 of the floor brush hanging head 3. Be equipped with back wheel apron 61 on the back gyro wheel 58, the both ends of metal axle 64 all are equipped with annular 63, and the centre of back gyro wheel 58 is equipped with axle cassette 59, and axle cassette 59 comprises a plurality of buckles 60, and metal axle 64 installs in axle cassette 59, and buckle 60 is arranged in annular 63, and back wheel apron 61 is installed on back gyro wheel 58, is equipped with apron hole 62 on the back wheel apron 61, and the apron hole 62 of back wheel apron 61 is installed on the axle cassette 59 of back gyro wheel 58.

When the dust collector is used, dust is sucked through the air inlet groove 21 on the bottom cover 1, dust is sucked into the air inlet 18 from the air inlet groove 21 and the air inlet notch 27, the air inlet 18 is in sealed connection with the air inlet duct 33 in the upper cover 2 through the design of the annular groove 67 and the sealing flanging 68, and the dust is prevented from entering between the upper cover 2 and the bottom cover 1; the upper cover 2 is internally provided with a brush holder 11 and a lifting switch 4, whether the floor brush strips 13 need to be extended or retracted can be selected through the ground where dust is located, when the floor brush strips 13 need to be extended, an operator enables a lifting rotating shaft 50 to rotate through the action of a lifting pedal 48, the rotation of the lifting rotating shaft 50 enables a stop block on the lifting rotating shaft to slide in a stop groove 46 of a wool strip brush until the stop block is buckled on a limit strip 47 for positioning, at the moment, a lifting spring is compressed, a positioning hole 44 on a positioning fulcrum 45 moves along a positioning column 35, meanwhile, a limit rotating shaft 42 in a limit hole 43 rotates 65 in a limit groove of a limit holder 34, the limit rotating shaft 42 is taken as a center, the descending of the positioning fulcrum 45 enables the wool strip groove 41 to be ejected, and therefore, the floor brush strips 13 on the wool strip groove 41 extend out of a wool strip cavity 66 and are contacted with the bottom surface where the; when the floor brush bristle bar 13 needs to be retracted, an operator enables the lifting rotating shaft 50 to rotate under the action of the lifting pedal 48, the stop block on the lifting rotating shaft 50 is enabled to be separated from the limiting strip 47 and slide in the stop groove 46 under the action of the spring force of the lifting spring due to the rotation of the lifting rotating shaft 50, the positioning hole 44 on the positioning fulcrum 45 moves along the positioning column 35, meanwhile, the limiting rotating shaft 42 in the limiting hole 43 rotates in the limiting groove 65 of the limiting frame 34, the wool-bar groove 41 is retracted due to the ascending of the positioning fulcrum 45 by taking the limiting rotating shaft 42 as the center, and therefore the floor brush bristle bar 13 on the wool-bar groove 41 is retracted into the wool-bar cavity 66. Wherein: the size design of the air inlet 18 is matched with the air inlet area, so that the flow maximization is ensured, and the dust collection efficiency is improved.

Claims

1. A floor brush structure of a dust collector is characterized by comprising a bottom cover (1), an upper cover (2) and a floor brush hanging head (3), wherein the bottom cover (1) is arranged on the upper cover (2), an air inlet groove (21) is formed in the bottom cover (1), an air inlet (18) is formed in the middle of the bottom of the air inlet groove (21), a brush frame (11) and a lifting switch (4) are arranged inside the upper cover (2), an air inlet channel (33) matched with the air inlet (18) is formed in the upper cover (2), the brush frame (11) is arranged inside the upper cover (2) and is arranged between the bottom cover (1) and the upper cover (2), a lifting spring is arranged between the brush frame (11) and the upper cover (2), the lifting switch (4) is arranged on the outer side of the upper cover (2) and is connected with the brush frame (11), the air inlet channel (33) is arranged in the middle of the brush frame (11), bottom (1) and upper cover (2) between be equipped with wool top chamber (66), brush yoke (11) on be equipped with ground brush wool top (13), ground brush wool top (13) arrange in wool top chamber (66), upper cover (2) on be equipped with rear wheel subassembly (10), ground brush hanger head (3) install on upper cover (2) and with air inlet duct (33) intercommunication, upper cover (2), bottom (1) and ground brush hanger head (3) all be connected with rear wheel subassembly (10).

2. The floor brush structure of a dust collector as claimed in claim 1, wherein the air inlet slot (21) is disposed on the front surface of the bottom cover (1), the left and right ends of the air inlet slot (21) are provided with air inlet protrusions (26), the air inlet protrusions (26) are provided with air inlet notches (27), and the air inlet notches (27) are communicated with the air inlet slot (21).

3. The floor brush structure of the dust collector as claimed in claim 2, wherein an electrostatic groove (22) is formed on the front surface of the bottom cover (1) and is arranged outside the air inlet groove (21), an electrostatic strip is installed in the electrostatic groove (22), and the position of the electrostatic strip is arranged above the air inlet (18).

4. The floor brush structure of the dust collector as claimed in claim 3, wherein a leather strip groove (24) is formed in the front surface of the bottom cover (1) and is arranged on the outer side of the air inlet groove (21), a floor brush leather strip (15) is arranged in the leather strip groove (24), a plurality of limiting buckles (25) are uniformly distributed in the leather strip groove (24), a rotating shaft (14) is arranged on one side of the floor brush leather strip (15), the rotating shaft (14) is arranged in the leather strip groove (24) and is limited in the leather strip groove (24) through the limiting buckles (25), and the leather strip groove (24) is arranged below the air inlet (18) and vertically corresponds to the static groove (22).

5. The floor brush structure of a dust collector as claimed in claim 4, wherein the shape of the air inlet slot (21) is trapezoidal, the upper bottom edge of the air inlet slot (21) is close to the strip slot (24), the lower bottom edge of the air inlet slot (21) is close to the electrostatic slot (22), the length of the upper bottom edge of the air inlet slot (21) is smaller than that of the lower bottom edge of the air inlet slot (21), and the depth of the air inlet slot (21) gradually increases from one end close to the air inlet bump (26) to one end close to the air inlet (18).

6. The floor brush structure of the dust collector as claimed in claim 4 or 5, wherein a plurality of evenly distributed connecting ribs (17) are arranged on the back of the bottom cover (1) and between the air inlet (18) and the leather strip groove (24), the connecting ribs (17) are provided with circular arc-shaped grooves (23), and the lifting switch (4) is arranged in the circular arc-shaped grooves (23).

7. The floor brush structure of the dust collector as claimed in claim 2, wherein the left and right sides of the upper cover (2) are provided with notches (28) matched with the air inlet convex blocks (26), the air inlet (18) is provided with an annular groove (67), and one port of the air inlet duct (33) communicated with the air inlet (18) is provided with a sealing flange (68) matched with the annular groove (67).

8. The structure of a floor brush of a dust collector according to claim 1, wherein a bristle groove (41) is formed at the front end of the brush holder (11), the floor brush bristle (13) is arranged in the bristle groove (41), a plurality of limiting buckles (40) are uniformly distributed in the bristle groove (41), a limiting edge (12) is arranged on one side of the floor brush bristle (13), the limiting edge (12) is arranged in the bristle groove (41) and is limited in the bristle groove (41) through the limiting buckles (40), a positioning fulcrum (45) is arranged at the rear end of the brush holder (11), a positioning hole (44) is formed in the positioning fulcrum (45), a positioning column (35) matched with the positioning hole (44) is arranged in the upper cover (2), the lifting spring is arranged on the positioning column (35), and one end of the lifting spring is arranged in the upper cover (2), the other end of the lifting spring is in contact with a positioning fulcrum (45), a limiting hole (43) is formed in the middle of the brush frame (11), a limiting frame (34) corresponding to the limiting hole (43) is arranged inside the upper cover (2), a limiting rotating shaft (42) is arranged in the limiting hole (43), and a limiting groove (65) corresponding to the limiting rotating shaft (42) is formed in the limiting frame (34).

9. The floor brush structure of the dust collector as claimed in claim 8, wherein the lifting switch (4) comprises a lifting pedal (48) and a lifting rotating shaft (50), the lifting switch (4) is integrally formed, one end of the lifting rotating shaft (50) is installed at one side of the lifting pedal (48), the upper cover (2) is provided with a lifting hole (30) matched with the lifting pedal (48), the other end of the lifting rotating shaft (50) and the other side of the lifting pedal (48) are both provided with a shaft head (52), a shaft seat (29) matched with the shaft head (52) is arranged inside the upper cover (2), a plurality of supporting frames (31) are arranged inside the upper cover (2), one end of each supporting frame (31) is installed inside the upper cover (2), the other end of each supporting frame (31) is provided with a shaft groove (32) matched with the lifting rotating shaft (50), lifting shaft (50) be equipped with baffle (49), baffle (49) on be equipped with a plurality of evenly distributed's strengthening rib (51), brush yoke (11) on and arrange in the position department between spacing hole (43) and location fulcrum (45) be equipped with baffle (49) assorted catch groove (46), one side that catch groove (46) are close to spacing hole (43) is equipped with spacing strip (47).

10. The floor brush structure of the dust collector as claimed in claim 1, wherein the cross section of the air inlet duct (33) is L-shaped, the air inlet duct (33) comprises a first air duct (37) and a second air duct (38), the first air duct (37) and the second air duct (38) are perpendicular to each other, one end of the first air duct (37) is communicated with the air inlet (18), the other end of the first air duct (37) is in arc transition connection with one end of the second air duct (38), and the other end of the second air duct (38) is communicated with the floor brush hanging head (3).

11. The floor brush structure of the dust collector as claimed in claim 10, wherein an air duct sealing ring (8) is arranged between the second air duct (38) and the floor brush hanging head (3), the air duct sealing ring (8) is made of a heat-shrinkable elastomer material, and cross bars (9) are uniformly distributed on the outer side surface of the air duct sealing ring (8).

12. The floor brush structure of the dust collector as claimed in claim 11, wherein the floor brush hanging head (3) comprises a hanging head main body (6) and a hanging head air inlet pipe (5), the hanging head main body (6) is installed between the upper cover (2) and the bottom cover (1), the hanging head main body (6) is provided with an air inlet hole (54), the air duct sealing ring (8) is installed between the second air duct (38) and the air inlet hole (54), the hanging head air inlet pipe (5) is installed on the hanging head main body (6) and is rotatably connected with the hanging head main body (6), the hanging head air inlet pipe (5) is L-shaped, the included angle of the hanging head air inlet pipe (5) is 45 degrees, and the included angle between the hanging head air inlet pipe (5) on the floor brush hanging head (3) and the plane where the bottom cover (1) is located ranges from 25 degrees to 65 degrees.

13. The dust collector floor brush structure according to claim 12, wherein the hanging head main body (6) is provided with a sealing sleeve (7) at a position where the air inlet hole (54) is arranged, the sealing sleeve (7) is in a waist-shaped hole in cross section, the maximum distance of the sealing sleeve (7) is consistent with the diameter of the air inlet hole (54), the air duct sealing ring (8) is installed between the second air duct (38) and the sealing sleeve (7), the inner wall of the air inlet hole (54) is provided with a first positioning ring groove (57) and a guide groove (55), the guide groove (55) is arranged at one end of the air inlet hole (54) and communicated with the first positioning ring groove (57), the outer side of one end of the hanging head air inlet pipe (5) is provided with a second positioning ring groove (53), the second positioning ring groove (53) is provided with a ring-shaped retainer ring, the second positioning ring retainer ring in the second positioning ring groove (53) is communicated with the first positioning ring groove (57) in the air inlet hole (54) And the annular clamping ring is provided with an opening, and one end of the hanging head air inlet pipe (5) provided with a second positioning ring groove (53) is provided with a positioning baffle (56).

14. A structure of a floor brush for a vacuum cleaner as claimed in claim 3, wherein the bottom cover (1) is provided with wheel grooves (19) on the front surface thereof and disposed on the left and right sides of the electrostatic groove (22), the wheel grooves (19) are provided with mounting grooves (20) on the left and right sides thereof, the wheel grooves (19) are provided with front wheels (16) therein, and the front wheels (16) are provided with mounting posts on the left and right sides thereof to be matched with the mounting grooves (20).

15. A structure of a cleaner floor brush according to claim 14, characterized in that the distance between the plane of the bottom cover (1) and the plane formed by the front wheel (16) and the rear wheel assembly (10) is 0.6mm-1.5 mm.

16. The floor brush structure of the dust collector as claimed in claim 1, wherein the rear wheel assembly (10) comprises a rear roller (58) and a metal shaft (64), the upper cover (2), the bottom cover (1) and the floor brush hanging head (3) are all provided with metal shaft seats (36), the upper cover (2) is provided with wheel grooves (39) matched with the rear roller (58), the rear roller (58) is arranged at two ends of the metal shaft (64) and is arranged in the wheel grooves (39), and the metal shaft (64) is arranged on the metal shaft seats (36) of the upper cover (2), the metal shaft seats (36) of the bottom cover (1) and the metal shaft seats (36) of the floor brush hanging head (3).

17. The structure of the dust collector floor brush according to claim 16, wherein a rear wheel cover plate (61) is arranged on the rear roller (58), ring grooves (63) are respectively arranged at two ends of the metal shaft (64), a shaft clamping seat (59) is arranged in the middle of the rear roller (58), the shaft clamping seat (59) consists of a plurality of buckles (60), the metal shaft (64) is arranged in the shaft clamping seat (59), the buckles (60) are arranged in the ring grooves (63), the rear wheel cover plate (61) is arranged on the rear roller (58), a cover plate hole (62) is arranged on the rear wheel cover plate (61), and the cover plate hole (62) of the rear wheel cover plate (61) is arranged on the shaft clamping seat (59) of the rear roller (58).