CN106473664B - Floor brushes and vacuum cleaners - Google Patents

Abstract

A floor brush and its dust collector, the floor brush includes the body of the floor brush (100, 100 ') and brush body assembly (200, 200 ') set in body of the floor brush, there are suction nozzles (300) and suction pipes connected with it on the body of the floor brush, one end of the brush body assembly is the brush body end to connect brush body (210), the brush body assembly passes the connecting axle (110, 110 ') rotatable connection to said body of floor brush, the brush body end passes the elastic linkage assembly elastic connection on the body of the floor brush, the floor brush also includes the drive assembly driving the brush body assembly to rotate and through the movement of the drive assembly and in the switch lock position device (510) of the release or lock state alternatively; the brush body is driven by the driving component to rotate and is switched between two operation positions, including that when the switch locking device is in a release state, the brush body is in a ground sticking or suspending position under the action of the elastic force of the elastic linkage component; and when the switch locking device is in a locking state, the brush body is in a suspended or ground-attached position.

Description

Floor brushes and vacuum cleaners

technical field

The invention relates to a floor brush and a vacuum cleaner thereof, in particular to a floor brush with improved structure, and belongs to the technical field of vacuum cleaner manufacturing.

Background technique

With the improvement of people's living standards, vacuum cleaners have entered more and more families as a cleaning device. The structure of the floor brush as an accessory of the vacuum cleaner has a great impact on its cleaning effect. The brush body does not have the function of suspension and lifting, and only the cleaning method of row brush or disk brush lifting is used. For example, the Chinese patent application with application number 201420031521.9 discloses a floor scrubber disk brush, which is realized by moving up and down the pedal bracket. The lifting of the disc brush, but how to use the brush body on the lifting mechanism to ensure the high efficiency and labor saving of the floor brush has become an urgent problem for sanitary ware manufacturers to solve. The Chinese patent application with application number 201420440301.1 discloses a carpet cleaning machine that directly adjusts the squeegee through the adjustment rod, but its structure is complicated, the squeegee opening and the brush body are relatively fixed, and the brush body cannot be raised and lowered independently. The Chinese patent application with the application number 200910024598.7 discloses a pneumatic carpet cleaning machine, which uses a nozzle switching valve to open and close the nozzle to adjust the working state of the brush body and the suction nozzle, but the brush body cannot be lifted up and down, which cannot solve the problem of the brush body staying on the ground. The pollution problem, and the valve needs to be pulled by hand, and it is quite inconvenient to bend over to operate. If the brush body cannot be raised and lowered, the brush body will keep in contact with the ground when the cleaning work is over, because the brush body will be hung with stains and a large amount of sewage, which will affect the suction of the floor brush nozzle, thereby affecting its cleaning effect, and for different ground or On the surface of the carpet, the brush body of the vacuum cleaner may cause damage to it when cleaning.

Contents of the invention

The technical problem to be solved by the present invention is to provide a floor brush and its vacuum cleaner whose brush body can be suspended and lifted to address the deficiencies of the prior art. According to different use environments, the brush body can be lifted and lowered to conveniently switch the functions of washing and water absorption of the floor brush, so that For a more pronounced cleaning effect.

The technical problem to be solved by the present invention is achieved through the following technical solutions:

A ground brush, comprising a ground brush main body and a brush body assembly arranged on the ground brush main body. The ground brush main body is provided with a suction nozzle and a suction pipe connected thereto. One end of the brush body assembly is a brush body end connected to the brush body. The body assembly is rotatably connected to the main body of the ground brush through a connecting shaft, and the end of the brush body is elastically connected to the main body of the ground brush through an elastic linkage assembly. The switch lock device is in the released or locked state alternately by action; the brush body is driven by the drive assembly to rotate and switch between the two working positions, including when the switch lock device is in the released state, the brush body is in the elastic connection Under the action of the elastic force of the moving assembly, the brush body is in the floating or floating position when the switch locking device is in the locked state.

In order to facilitate the drive assembly to provide force for the movement of the brush body, the drive assembly is a pedal assembly. The pedal assembly is T-shaped and includes a pedal and a support rod fixed at the lower end of the pedal. The support rod includes a first support rod. The brush body assembly is provided with a force receiving end corresponding to the action end. The pedal assembly also includes a switch spring.

In order to allow the brush body assembly to rotate around the connecting shaft after stepping on or releasing the pedal in the pedal assembly, the connecting shaft of the ground brush provided by the application is arranged in the middle of the brush body end and the force receiving end; the elastic linkage assembly includes The sleeve arranged on the end of the brush body has a compression spring inside the sleeve, and the two ends of the compression spring are respectively against the main body of the floor brush and the end of the brush body; the brush body assembly mainly includes the brush body and the supporting connecting rod, and the supporting connecting rod It includes a vertical connecting rod and a horizontal connecting rod, the upper end of the vertical connecting rod is connected to the connecting shaft, the lower end is fixed in the middle of the horizontal connecting rod, the brush body end and the force receiving end are arranged on the horizontal connecting rod, and the force receiving end is provided with The first action surface, the first action surface is located below the first support rod.

Further, the supporting rod also includes a second supporting rod; the acting end also includes the lower end of the second supporting rod; the force receiving end is provided with a second acting surface, and the second acting surface is located below the second supporting rod.

The present invention also provides another ground brush, the connecting shaft of which is set on one side of the force-bearing end and away from the brush body end, the elastic linkage assembly includes a tension spring set on the brush body end, and the two ends of the tension spring They are respectively fixed to the main body of the floor brush and the end of the brush body; the brush body assembly mainly includes the brush body and the supporting link, the supporting link includes a vertical link and a horizontal link, the upper end of the vertical link is connected to the connecting shaft, and the lower end is fixed on the horizontal The rear part of the connecting rod, the brush body end and the force-receiving end are arranged on the horizontal connecting rod, and the force-receiving end is provided with a third acting surface, and the third acting surface is located below the first support rod.

In order to enable the switch lock device to lock the brush body end to work in the floating position or the ground position, the switch lock device includes a switch bracket and a switch locking ring, and the switch locking ring is connected to the main body of the ground brush. The switch bracket is fixed on the pedal assembly; the switch bracket includes slide rails and limit slots that match the switch locking circlip; the switch locking device also includes a circlip fixing cover, a switch locking tension spring, and a circlip fixing cover buckle Closed on the main body of the floor brush, a positioning hole suitable for the switch locking circlip is left on the fastening surface of the circlip fixing cover and the ground brush main body, and the switch locking circlip passes through the locating hole and the switch locking tension spring One end is connected, and the other end of the switch locking tension spring is connected to the main body of the ground brush.

In order to further improve the cleaning effect of the floor brush, the brush body is a rolling brush, which is rotatably connected to the end of the brush body, and a driving motor for driving the rolling brush is also fixed on the brush body assembly.

Further, the ground brush also includes a water spray plate arranged on the main body of the ground brush, and the suction nozzle, the water spray plate and the brush body assembly are sequentially arranged from front to back.

The present invention also provides a vacuum cleaner, which includes a ground brush, a dust collection chamber and a vacuum source. Under the action of the vacuum source, dust and sewage are sucked by the ground brush and then enter the dust collection chamber through an air duct. The ground brush is the above-mentioned ground brush .

To sum up, the present invention provides a ground brush and its vacuum cleaner, in which the brush body can be suspended and lifted, has two working modes, novel structure and ingenious design, and can conveniently switch the floor brush for washing and absorbing water by lifting and lowering the brush body according to different needs. Function. In the water absorption mode, the suspended brush body does not touch the ground, which not only reduces the wear and tear on part of the ground and the residue of stains after washing, but also does not make the suction nozzle fluctuate, which objectively increases the vacuum degree of the suction nozzle and enhances the cleaning effect; In the water washing mode, the brush body can float up and down according to the ground conditions, but it always stays close to the ground, which is conducive to scrubbing the ground and achieving a more significant cleaning effect.

The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a schematic cross-sectional view of a brush body end in a floating position according to an embodiment of the present invention;

Fig. 2 is an exploded view of a switch locking device according to an embodiment of the present invention;

Fig. 3 is a schematic cross-sectional view of the switch locking device when the brush body end is in the position of touching the ground according to the embodiment of the present invention;

4 is a schematic cross-sectional view of the switch locking device when the brush body end is in the floating position according to Embodiment 1 of the present invention;

Fig. 5 is a schematic cross-sectional view of the first embodiment of the present invention when the end of the brush body is in the ground position;

Fig. 6 is a schematic cross-sectional view of the second embodiment of the present invention when the end of the brush body is in the floating position;

Fig. 7 is a schematic cross-sectional view of the second embodiment of the present invention when the end of the brush body is in the ground position;

Fig. 8 is a schematic cross-sectional view of the end of the third brush body in the floating position according to the embodiment of the present invention;

Fig. 9 is a schematic cross-sectional view of the third embodiment of the present invention when the end of the brush body is in the ground position.

Detailed ways

Embodiment one

FIG. 1 is a schematic cross-sectional view of a brush body end in a floating position according to Embodiment 1 of the present invention. As shown in FIG. 1 , the floor brush provided by the present invention mainly includes a floor brush body 100 , a brush body assembly 200 disposed on the floor brush body, a driving assembly for driving the rotation of the brush body assembly 200 , and an elastic linkage assembly. The brush body assembly 200 includes a brush body end and a force receiving end, the brush body end is connected to the brush body 210, and the brush body assembly 200 is rotatably connected to the floor brush main body 100 through a connecting shaft 110 arranged between the brush body end and the force receiving end The end of the brush body is elastically connected to the ground brush body 100 through an elastic linkage assembly. In this embodiment, the driving assembly is a pedal assembly 400, and the force-bearing end is arranged correspondingly to the acting end of the bottom of the pedal assembly 400, that is, the acting end of the bottom of the pedal assembly 400 presses against the force-bearing end of the brush body assembly, and brushes on the ground. There is also a switch locking device 510 that is alternately in a released or locked state through the action of the drive assembly. When the pedal 401 in the pedal assembly 400 is stepped on, the acting end of the bottom of the pedal assembly 400 acts on the force receiving end correspondingly, so that The brush body assembly 200 rotates around the connecting shaft 110 , and the brush body ends are locked to work in the floating position or the ground-facing position through the switch locking device 510 . The ground brush main body 100 is provided with a suction nozzle 300 and a suction pipe (not shown) connected thereto. The water plate 600 and the brush body assembly 200 are arranged sequentially from front to back.

The pedal assembly 400 is T-shaped and includes a pedal 401 and a support rod fixed at the lower end of the pedal. The support rod includes a first support rod 402; The force-receiving ends of the brush body assembly 200 abut against each other to provide force for the brush body assembly 200 to make the brush body assembly 200 rotate around the connecting shaft 110 .

The brush body assembly 200 mainly includes a brush body 210 and a support link 220, wherein the support link 220 includes a vertical link 221 and a horizontal link 222, the upper end of the vertical link 221 is connected to the connecting shaft 110, and the lower end is fixed to the horizontal link In the middle of 222 , the brush body end and the force-receiving end are arranged on the horizontal connecting rod 222 , and the force-receiving end is provided with a first action surface A, and the first action surface A is located below the first support rod 402 .

The elastic linkage assembly includes a sleeve arranged on the end of the brush body, and a compression spring 520 is arranged in the sleeve, and the two ends of the compression spring respectively abut against the main body 100 of the ground brush and the end of the brush body. When the pedal 401 of the pedal assembly 400 is stepped on, the first acting surface A contacts the first support rod 402, the force-bearing end of the brush body assembly 200 moves downward, the compression spring 520 is in a compressed state, and the end of the brush body moves upward. In the suspension position, when the pedal 401 of the pedal assembly 400 is slightly depressed and released, the first action surface A is separated from the first support rod 402, and the compression spring 520 is released. Under the combined action of the brush body, the end of the brush body moves downward to be in a position close to the ground.

The brush body 210 can be a well-known vacuum cleaner brush body such as a row brush or a rolling brush. In this embodiment, the brush body 210 is preferably a rolling brush, and the rolling brush is rotatably connected to the end of the brush body, and the brush body assembly 200 is also A drive motor (not shown) that drives the roller brush is fixed.

The switch locking device 510 is used to lock the brush body end to work in the floating position or the ground position. Fig. 2 is an exploded view of a switch locking device according to an embodiment of the present invention. As can be seen from FIG. 2 in conjunction with FIG. 1 , the pedal assembly 400 further includes a switch spring 513 , the upper end of the switch spring 513 abuts against the pedal assembly 400 , and the lower end of the switch spring 513 abuts against the floor brush main body 100 . The switch locking device 510 includes a switch bracket 511 and a switch locking clip 512 , the switch locking clip 512 is connected to the main body 100 of the ground brush, and the switch bracket 511 is fixed on the pedal assembly 400 .

When stepping on the pedal 401 of the pedal assembly 400, the switch bracket 511 and the switch locking clip 512 are buckled, and the switch locking device 510 is locked. When the pedal 401 of the pedal assembly 400 is slightly pressed and released, the switch The bracket 511 is separated from the switch locking clip 512 , the switch locking device 510 is released, and the pedal assembly 400 rises under the elastic force of the switch spring 513 .

Specifically, Fig. 3 is a schematic cross-sectional view of the switch locking device when the brush body end is in the ground-facing position according to an embodiment of the present invention; Fig. 4 is a schematic cross-sectional view of the switch locking device when the brush body end is at the floating position according to an embodiment of the present invention . As shown in Figures 1 to 4, the switch locking device 510 also includes a snap spring fixing cover 514 and a switch locking tension spring 515. A positioning hole suitable for the switch locking clip 512 is left on the fastening surface of the ground brush main body 100. The switch locking clip 512 passes through the positioning hole and is connected with one end of the switch locking tension spring 515, and the switch is locked and pulled. The other end of the spring 515 is connected to the ground brush body 100 . The switch bracket 511 includes a slide rail 516 and a limit groove 517 matched with the switch locking clip 512; when the pedal 401 of the pedal assembly 400 is depressed, the switch bracket 511 descends and locks with the switch The circlips 512 are connected, and the switch locking circlip 512 moves into the limit groove 517 under the restriction of the slide rail 516, so that the switch bracket 511 is engaged with the switch locking circlip 512. When the pedal of the pedal assembly 400 is slightly depressed When released after 401, the switch locking clip 512 leaves the limiting groove 517, and the switch bracket 511 is separated from the switch locking clip 512.

Fig. 5 is a schematic cross-sectional view of the first embodiment of the present invention when the end of the brush body is in the ground position. As shown in FIG. 1 to FIG. 5 , when the pedal 401 of the pedal assembly 400 is slightly depressed and released, the switch locking clip 512 leaves the limit groove 517, and the switch bracket 511 and the switch locking clip The spring 512 is separated, the switch locking device 510 is released, the pedal assembly 400 rises under the elastic force of the switch spring 513, the first action surface A is separated from the first support rod 402, and the compression spring 520 is released. Under the combined action of thrust and gravity on the brush body 210, the end of the brush body moves downward to be in the ground position, as shown in Figure 5; when the pedal 401 of the pedal assembly 400 is stepped on, the switch bracket 511 descends and Connected with the switch locking clip 512, the switch locking clip 512 moves into the limit groove 517 under the restriction of the slide rail 516, so that the switch bracket 511 is buckled with the switch locking clip 512, and the switch is locked. The device 510 is locked, the first acting surface A is in contact with the first supporting rod 402, and the first supporting rod 402 provides an acting force for the first acting surface A, so that the first acting surface A moves downward and the end of the brush body upwards The movement is in a suspended position, as shown in Figure 1.

It should be noted that the present invention does not limit the specific structure of the support link 220, the switch locking device 510 and the drive assembly. The support link 220 can be a curved rod, and the contact surface with the drive assembly can be an arc surface. The switch lock The structure of the position device 510 can be obtained by any person skilled in the art by using the principle of switch lock without creative work, and the driving component is not limited to the pedal component, which can also drive the brush body and the The state of the switch locking device, for example, directly provides force to the force receiving end through a connecting rod that can be provided on the vacuum cleaner. In the present invention, the first support rod is not limited to its structure, and is essentially a driving rod connected with the pedal and directly under its action. In addition, the front in the present invention refers to the forward direction of the vacuum cleaner when it is working, that is, the D direction.

The floor brush in Embodiment 1 of the present invention has two working modes:

1. Water absorption mode: when the end of the brush body is in the ground position, that is, when the vacuum cleaner is in the water washing mode, the pedal 401 of the pedal assembly 400 is stepped on. Under the force provided by the pedal assembly 400, the brush body assembly 200 rotates around the connecting shaft 110, and the brush body 210 is suspended from the ground due to the principle of leverage, and is in a floating position. The switch locking ring 512 moves into the limit slot 517 under the restriction of the slide rail 516 , the switch bracket 511 is buckled with the switch locking spring 512, and the switch locking device 510 is locked, as shown in FIG. 1 . At this time, the water spray plate 600 stops working, the suction nozzle 300 is close to the ground to clean the ground stains, and the vacuum cleaner is in the water absorption mode;

2. Water washing mode: When the brush body end is in the floating position, that is, when the vacuum cleaner is in the water absorption mode, slightly step on the pedal 401 of the pedal assembly 400 and then release it, and the first action surface A of the brush body assembly 200 is pushed to become the force point , with the connecting shaft 110 as the fulcrum, the brush body 210 is lifted a little by the principle of leverage, and under the elastic force of the switch lock spring 515, the switch bracket 511 and the switch lock spring 512 in the switch lock device 510 are released. Under the combined action of the thrust provided by the floating spring 520 and the gravitational force on the brush body 210, the brush body 210 descends to a position close to the ground, and the pedal assembly 400 is at a high position, as shown in Figure 5, at this time the brush body 210 and the water spray plate 600 Working, the suction nozzle 300 is close to the ground to clean the ground stains, and the vacuum cleaner is in the washing mode.

Embodiment two

Fig. 6 is a schematic cross-sectional view of the second embodiment of the present invention when the brush end is at the floating position; Fig. 7 is a schematic cross-sectional view of the second embodiment of the present invention when the brush end is at the ground position. As shown in Figure 6 in conjunction with Figure 7, the difference between this embodiment and Embodiment 1 is that the structure of the pedal assembly 400' is different. The pedal assembly 400' includes a pedal 401 and a support rod fixed at the lower end of the pedal. The support rod includes The first support rod 402' and the second support rod 403'; the active end is the lower end of the first support rod 402' and the second support rod 403', that is, the first support rod 402' and the second support rod 403' The lower end abuts against the force receiving end of the brush body assembly 200 to provide force for the brush body assembly 200 to make the brush body assembly 200 rotate around the connecting shaft 110 . In addition, the stressed end is provided with a first acting surface A', the first acting surface A' is located below the first support rod 402', the stressed end is provided with a second acting surface B', and the second acting surface B 'located below the second support rod 403'.

Specifically, when the pedal 401 of the pedal assembly 400' is slightly depressed and released, the switch locking clip 512 leaves the limit groove 517, the switch bracket 511 is separated from the switch locking clip 512, The switch locking device 510 is released, the pedal assembly 400' rises under the elastic force of the switch spring 513, the first action surface A' is separated from the first support rod 402', the compression spring 520 is released, and the thrust provided by the compression spring 520 Under the joint action of the gravity on the brush body 210, the end of the brush body moves downward to be in a position close to the ground, and finally the second action surface B' contacts the second support rod 403', as shown in Figure 7; When the pedal 401 of the pedal assembly 400' is lowered, the switch bracket 511 descends and connects with the switch locking clip 512, and the switch locking clip 512 moves into the limit groove 517 under the restriction of the slide rail 516, thereby Make the switch bracket 511 buckle with the switch locking spring 512, the switch locking device 510 is locked, the first action surface A' is abutted against the first support rod 402', and the first support rod 402' is the first function The surface A' provides an active force, so that the first acting surface A' moves downward, and the end of the brush body moves upward to be in a suspended position, as shown in FIG. 6 .

Other structures in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

Embodiment three

Fig. 8 is a schematic cross-sectional view of the third embodiment of the present invention when the brush end is at the floating position; Fig. 9 is a schematic cross-sectional view of the third embodiment of the present invention when the brush end is at the ground position. As shown in Figure 8 in conjunction with Figure 9, the drive assembly in this embodiment is a pedal assembly, and the pedal assembly 400" is T-shaped, including a pedal 401 and a first support rod 402" fixed at the lower end of the pedal 401, and the brush body assembly 200' The connecting shaft 110' is rotatably connected to the ground brush body 100', and the corresponding position at the bottom of the pedal assembly 400", that is, the lower end of the first support rod 402" is against the force-bearing end of the brush body assembly 200', forming a brush body assembly. 200' provides force. The brush body assembly 200' mainly includes a brush body 210 and a support link 220', wherein the support link 220' includes a vertical link 221' and a horizontal link 222', the upper end of the vertical link 221' is connected to the connecting shaft 110 ' connection, the lower end is fixed to the rear of the horizontal connecting rod 222', the horizontal connecting rod 222' is provided with a brush body end and a stressed end, and the brush body end, the stressed end and the vertical connecting rod 221' are arranged in sequence from front to back, That is, the connecting shaft 110' is set on one side of the force receiving end and away from the brush body end, and the force receiving end is provided with a third action surface C, which is located below the first support rod 402". The pedal assembly 400" also It includes a switch spring 513, the upper end of which is against the pedal assembly 400", and the lower end is against the floor brush main body 100'.

The elastic linkage assembly includes a tension spring 520' disposed on the brush body end, and the two ends of the tension spring 520' are respectively fixed to the ground brush main body 100' and the brush body end. When stepping on the pedal 401 of the pedal assembly 400", the third action surface C abuts against the first support rod 402", the force-bearing end of the brush body assembly 200' moves downward, the extension spring 520' is in a stretched state, and the brush The body end moves downward to be in the ground position. When the pedal 401 of the pedal assembly 400" is slightly depressed and then released, the third action surface C is separated from the first support rod 402", and the tension spring 520' recovers, which is the brush body end. The upward motion provides the force to place the brush body end in a floating position.

Except for the above differences, the structure of this embodiment is the same as that of Embodiment 1, and will not be repeated here. The ground brush in the third embodiment of the present invention also has two working modes:

1. Water absorption mode: when the brush body 210 is in contact with the ground at the position close to the ground, that is, when the vacuum cleaner is in the water washing mode, step on the pedal 401 of the pedal assembly 400" slightly and then release it, the third action surface C of the brush body assembly 200' The push force becomes the point of force, and the connecting shaft 110' is used as the fulcrum to lower the brush body 210 a little by using the principle of leverage. 512 is released, and the tension spring 520' is restored to provide force for the upward movement of the brush body. The brush body 210 is suspended from the ground and is in a suspended position. The pedal assembly 400" is at a high position, as shown in Figure 8, and the water spray plate 600 stops working at the same time , the suction nozzle 300 is close to the ground to clean the ground stains, and the vacuum cleaner is in the water suction mode;

2. Water washing mode: when the brush body 210 is in the floating position and separated from the ground, that is, when the vacuum cleaner is in the water absorption mode, step on the pedal 401 of the pedal assembly 400", and the brush body assembly 200' will be pushed by the third action surface C to become a force point, the brush body 210 moves downward with the connecting shaft 110' as the fulcrum, and is in the ground position. At this time, the switch locking clip 512 moves into the limit groove 517 under the restriction of the slide rail 516, and the switch bracket 511 and the switch locking clip 512 buckle, the switch locking device 510 is locked, the pedal assembly 400" is in the low position, as shown in Figure 9, the corresponding brush body 210 is in the ground position, the brush body 210 and the water spray plate 600 work at the same time, and the suction nozzle 300 is tightly Stick to the ground to clean the ground stains, and the vacuum cleaner is in the washing mode.

Embodiment four

The present invention also provides a vacuum cleaner, including a ground brush, a dust collection chamber and a vacuum source. Under the action of the vacuum source, dust and sewage are sucked by the ground brush and then enter the dust collection chamber through an air duct. The ground brush is the first embodiment . The ground brush described in embodiment two or embodiment three.

It should be noted that the structures of the first and second support rods in the embodiment of the present invention are only examples, and those skilled in the art can make adaptive settings for their shapes according to actual structural settings or assembly requirements.

The present invention provides a floor brush and its vacuum cleaner, wherein the brush body 210 can be suspended and lifted, has two working modes, novel structure and ingenious design, and can conveniently switch the washing and water absorption functions of the floor brush by lifting and lowering the brush body according to different needs. In the water absorption mode, the suspended brush body 210 does not contact the ground, which not only reduces the wear and tear on some ground and the residue of stains after washing, but also does not make the suction nozzle 300 fluctuate, which objectively increases the vacuum degree of the suction nozzle and enhances cleaning. Effect: In the water washing mode, the brush body 210 can float up and down according to the ground conditions, but it always stays close to the ground, which is beneficial to scrub the ground and achieve a more significant cleaning effect.

Claims (9)

1. A ground brush, comprising a ground brush body (100, 100') and a brush body assembly (200, 200') arranged on the ground brush body, the ground brush body is provided with a suction nozzle (300) and Connected suction pipe, one end of the brush body assembly is the brush body end connecting the brush body (210), characterized in that the brush body assembly is rotatably connected to the main body of the ground brush through the connecting shaft (110, 110'), The end of the brush body is elastically connected to the main body of the ground brush through an elastic linkage component. The ground brush also includes a drive component that drives the brush body component to rotate and a switch locking device (510) that is alternately in a released or locked state through the action of the drive component ; The brush body is driven by the drive assembly to rotate and switch between two working positions, including when the switch locking device is in the released state, the brush body is in the ground-floating or floating position under the elastic force of the elastic linkage assembly ; and when the switch locking device is in a locked state, the brush body is in a floating or ground-facing position. 2. The ground brush according to claim 1, characterized in that, the drive assembly is a pedal assembly (400, 400', 400"), and the pedal assembly is T-shaped, including a pedal (401) and a The support rod at the lower end, the support rod includes a first support rod (402, 402', 402"), the first support rod (402, 402', 402") is provided with an active end pressed against the brush body assembly, and the brush body The assembly is provided with a force receiving end corresponding to the action end, and the pedal assembly also includes a switch spring (513). The upper end of the switch spring abuts against the pedal assembly, and the lower end abuts against the ground brush main body (100, 100'). 3. The ground brush according to claim 2, characterized in that, the connecting shaft (110) is arranged in the middle of the brush body end and the force receiving end; The elastic linkage assembly includes a sleeve arranged on the end of the brush body, and a compression spring (520) is arranged inside the sleeve, and the two ends of the compression spring are connected to the ground brush body (100) and the brush body end respectively. offset; The brush body assembly (200) mainly includes a brush body (210) and a support link (220), and the support link includes a vertical link (221) and a horizontal link (222), and the upper end of the vertical link is connected to the The connecting shaft (110) is connected, and the lower end is fixed in the middle of the horizontal connecting rod. The brush body end and the force receiving end are arranged on the horizontal connecting rod, and the force receiving end is provided with a first acting surface (A, A'), The first action surface (A, A') is located below the first support rod (402, 402'). 4. The ground brush according to claim 3, characterized in that, said support rod also comprises a second support rod (403'); said active end also comprises the lower end of said second support rod; The force receiving end is provided with a second action surface (B'), and the second action surface (B') is located below the second support rod (403'). 5. The ground brush according to claim 2, characterized in that, the connecting shaft (110') is set on one side of the force-bearing end and away from the end of the brush body, and the elastic linkage assembly includes The extension spring (520') on the end, the two ends of the extension spring are respectively fixed to the ground brush main body (100') and the brush body end; The brush body assembly (200') mainly includes a brush body (210) and a support link (220'), and the support link includes a vertical link (221') and a horizontal link (222'). The upper end of the connecting rod is connected to the connecting shaft (110'), the lower end is fixed on the rear of the horizontal connecting rod, the brush body end and the force receiving end are arranged on the horizontal connecting rod, and the force receiving end is provided with a third acting surface ( C), the third action surface is located below the first support rod (402"). 6. The floor brush according to any one of claims 2-5, characterized in that, the switch locking device (510) includes a switch bracket (511) and a switch locking clip (512), and the switch The locking circlip is connected to the ground brush body (100, 100'), and the switch bracket is fixed to the pedal assembly (400, 400', 400"); The switch bracket (511) includes a slide rail (516) and a limit slot (517) matching the switch locking clip (512); The switch locking device (510) also includes a circlip fixing cover (514) and a switch locking tension spring (515). The circlip fixing cover is fastened on the main body of the floor brush, and the circlip fixing cover A positioning hole suitable for the switch locking clip (512) is left on the fastening surface of the main body of the ground brush, and the switch locking clip passes through the positioning hole and is connected to one end of the switch locking tension spring , the other end of the switch locking tension spring is connected to the main body of the ground brush. 7. The ground brush according to claim 1, characterized in that, the brush body (210) is a rolling brush, and the rolling brush is rotatably connected to the end of the brush body, and the brush body assembly (200, 200 ') is also fixed with a drive motor that drives the roller brush. 8. The ground brush according to claim 1, characterized in that, the ground brush further comprises a water spray plate (600) arranged on the ground brush main body (100, 100'), and the suction nozzle (300 ), the water spray plate and the brush assembly (200, 200') are arranged in sequence from front to back. 9. A vacuum cleaner, comprising a ground brush, a dust collection chamber and a vacuum source, under the action of the vacuum source, dust and sewage are sucked by the ground brush and enter the dust collection chamber through the air duct, it is characterized in that the ground brush is right A floor brush as described in any one of 1-8 is required.