Brush disc device and scrubber

Abstract

The utility model discloses a brush disc device and a scrubber, and relates to the technical field of cleaning electric appliances. A brush disc is arranged on the lower side of the brush disc frame; the two ends of the linkage connecting rod are connected with a linkage connecting rod first rotating shaft and a linkage connecting rod second rotating shaft respectively; the two ends of the lifting arm are connected with a lifting rotating shaft and a torsion rotating shaft respectively, a torsion rotating plate is fixedly connected to the outer side wall of the torsion rotating shaft, a first buffer spring is arranged between the upper side of the torsion rotating plate and the lower side of the lifting arm, and a second buffer spring is arranged between the lower side of the torsion rotating plate and the lower side of the brush disc frame; when the brush disc frame needs to be controlled to ascend, the first buffer spring exerts spring thrust between the torsion rotating plate and the lifting arm to play a supporting role, the second buffer spring is matched with the linkage connecting rod to play a buffering and stability maintaining role on the brush disc frame, and cleaning work can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of cleaning appliance technology, and in particular to a brush device and a floor scrubber. Background Technology

[0002] The brush disc performs cleaning by rotation, resulting in excellent cleaning performance. Therefore, the brush disc is an important cleaning component in various cleaning devices (such as floor scrubbers). Existing floor scrubber brush discs typically use a motor and linkage to control their lifting and lowering movements. In practice, it has been found that this type of brush disc lifting and lowering movement lacks stability and cannot perform high-precision adjustments. The area of ​​contact and coverage during cleaning is inconsistent, directly affecting the cleaning effect. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a brushing device and a floor scrubbing machine.

[0004] According to a first aspect of the present invention, a brush plate device includes: a chassis; a brush plate frame located below the chassis, with a brush plate disposed on the lower side of the brush plate frame; a linkage connecting rod connected between the upper side of the brush plate frame and the lower side of the chassis; a lifting arm, with a lifting shaft and a torque shaft respectively connected to its two ends, the lifting shaft connected to the upper side of the brush plate frame, and the torque shaft connected to the lower side of the chassis; a torque plate fixedly connected to the outer wall of the torque shaft; a first buffer spring disposed between the upper side of the torque plate and the lower side of the lifting arm, the upper end of the first buffer spring abutting against the lower side of the lifting arm, and the lower end of the first buffer spring abutting against the upper side of the torque plate; a second buffer spring disposed between the torque plate and the brush plate frame, the upper end of the second buffer spring abutting against the lower side of the torque plate, and the lower end of the second buffer spring abutting against the upper side of the brush plate frame; and a lifting drive device for driving the torque shaft to rotate.

[0005] According to some embodiments of this utility model, the two ends of the linkage are respectively connected to a first linkage shaft and a second linkage shaft. The left and right sides of the upper side of the brush holder are provided with rear linkage ears, and the first linkage shaft is connected to the rear linkage ears. The left and right sides of the lower side of the chassis are provided with front linkage ears, and the second linkage shaft is connected to the front linkage ears.

[0006] According to some embodiments of the present invention, a rear brush plate bracket is provided on the rear side of the upper side of the brush plate frame, the lifting shaft is connected to the rear brush plate bracket, a front brush plate bracket is provided on the front side of the lower side of the chassis, and the torque shaft is connected to the front brush plate bracket.

[0007] According to some embodiments of the present invention, a shock absorber is also provided between the upper side of the torque turn plate and the lower side of the lifting arm.

[0008] According to some embodiments of the present invention, an approach plate is provided on the upper side of the lifting arm, and a proximity switch is provided on the approach plate. The proximity switch can press against the lower side of the chassis.

[0009] According to some embodiments of the present invention, the two ends of the linkage are respectively connected to a first linkage shaft and a second linkage shaft. The first linkage shaft is connected to the upper side of the brush holder, and the second linkage shaft is connected to the lower side of the chassis.

[0010] According to some embodiments of the present invention, the lifting drive device adopts an electric piston device. The lifting drive device includes a piston cylinder on the front side and a push rod on the rear side. A front push rod lug is provided on the front side of the underside of the chassis. The front end of the piston cylinder is connected to the front push rod lug through a rotating shaft. A torque rocker arm is fixedly connected to the torque rotating shaft. The rear end of the push rod is connected to the torque rocker arm through a rotating shaft.

[0011] The brush device according to the embodiments of this utility model has at least the following technical effects:

[0012] 1. When the brush plate frame needs to be raised, the torque shaft drives the torque plate to rise. The first buffer spring provides support by applying spring thrust between the torque plate and the lifting arm. When the brush plate frame is lifted, the second buffer spring and the linkage rod work together to buffer and stabilize the brush plate frame. When the brush plate frame needs to be lowered, the torque shaft drives the torque plate to fall. When the brush plate frame is lifted and lowered, the first buffer spring provides support, and the second buffer spring no longer exerts spring thrust on the brush plate frame. This makes the brush plate lifting and lowering adjustment extremely stable, avoiding swaying and deviation, and ensuring the cleaning work can proceed.

[0013] 2. It can better coordinate with the controller to adjust the height of the brush disc, precisely control the pressure of the brush disc on the ground, making the cleaning effect more obvious, while also protecting the ground;

[0014] 3. The linkage rods on the left and right sides ensure that the brush holder and brush plate will not tilt to the left or right or forward or backward during the rising and falling process, maintaining sufficient precision and stability in lifting and lowering;

[0015] 4. Shock absorbers can filter ground pressure, reduce working vibration, and reduce the pressure on the lifting drive device from frequent changes.

[0016] A floor scrubber according to a second aspect of the present invention includes a brush device according to the first aspect of the present invention described above.

[0017] According to some embodiments of the present invention, a water baffle is provided at the edge of the brush holder, and a baffle plate is provided on the lower side of the water baffle, with the upper end of the baffle plate connected to the water baffle.

[0018] According to some embodiments of the present invention, a water distribution valve is provided on the upper side of the brush holder. The water distribution valve has a main water inlet and a water distribution outlet. The main water inlet is connected to an external water source. The water distribution outlet is connected to a water spray pipe. A water spray nozzle is provided on the output side of the water spray pipe, and the water spray nozzle faces the brush holder.

[0019] The floor scrubbing machine according to the embodiments of this utility model has at least the following beneficial effects:

[0020] 1. When the floor scrubber needs to control the brush plate to rise, the torque shaft drives the torque plate to rise. The first buffer spring provides support by applying spring thrust between the torque plate and the lifting arm. When the brush plate is lifted, the second buffer spring and the linkage rod work together to buffer and stabilize the brush plate. When the brush plate needs to be lowered, the torque shaft drives the torque plate to fall. When the brush plate is lifted and lowered, the first buffer spring provides support, and the second buffer spring no longer exerts spring thrust on the brush plate. This makes the brush plate lifting and lowering adjustment extremely stable, avoiding swaying and deviation, and ensuring the operation of the floor scrubber.

[0021] 2. The baffle plate is positioned at the edge of the floor scrubber to ensure that water from the brush plate does not splash out of the floor scrubber when the brush is working.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] Additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a perspective view of the brush plate device and floor scrubber of this utility model;

[0025] Figure 2 This is a cross-sectional view of the brush plate device and floor scrubber of this utility model;

[0026] Figure 3 This is a cross-sectional view of the brush plate device and floor scrubber of this utility model from another angle;

[0027] Figure 4 This is a schematic diagram of the working process of the brush plate device of this utility model;

[0028] Figure 5 This is a perspective view of the lifting arm in this utility model;

[0029] Figure 6 This is an exploded view of the lifting arm and brush holder in this utility model;

[0030] Figure 7 This is a schematic diagram of the lifting drive device in this utility model.

[0031] Figure label:

[0032] Chassis 100, front connecting rod lug 110, front brush plate bracket 120, front push rod lug 130; brush plate bracket 200, brush plate 210, brush plate motor 211, rear connecting rod lug 220, rear brush plate bracket 230, water baffle 240, baffle plate 241, water distribution valve 250, main water inlet 251, water distribution outlet 252, water spray pipe 253, water spray nozzle 254; linkage 300, linkage 310, linkage 320; Lifting arm 400, lifting shaft 410, torque shaft 420, torque plate 421, torque rocker arm 422, first torque bearing 423, second torque bearing 424, non-circular end of torque shaft 425, non-circular hole of torque rocker arm 426, first buffer spring 430, second buffer spring 440, shock absorber 450, lifting arm pressure plate 460, proximity plate 470, proximity switch 471; lifting drive device 500, piston cylinder 510, push rod 520. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, "multiple" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0037] The following is for reference. Figure 1 and Figure 2 This invention describes a brush device according to an embodiment of the present invention.

[0038] like Figure 1 and Figure 2 As shown, the brushing device according to an embodiment of the present utility model includes a chassis 100, a brushing frame 200, a linkage rod 300, a lifting arm 400, and a lifting drive device 500.

[0039] Chassis 100; Brush holder 200 is located below chassis 100, and brush 210 is provided on the lower side of brush holder 200; Reference Figure 2 , Figure 3 The linkage 300 connects the upper side of the brush holder 200 and the lower side of the chassis 100; the lifting arm 400 is connected to a lifting shaft 410 and a torque shaft 420 at both ends, respectively. The lifting shaft 410 is connected to the upper side of the brush holder 200, and the torque shaft 420 is connected to the lower side of the chassis 100. A torque plate 421 is fixedly connected to the outer wall of the torque shaft 420, and a first buffer spring is provided between the upper side of the torque plate 421 and the lower side of the lifting arm 400. Spring 430, the upper end of the first buffer spring 430 abuts against the lower side of the lifting arm 400, the lower end of the first buffer spring 430 abuts against the upper side of the torque rotating plate 421, a second buffer spring 440 is provided between the torque rotating plate 421 and the brush holder 200, the upper end of the second buffer spring 440 abuts against the lower side of the torque rotating plate 421, and the lower end of the second buffer spring 440 abuts against the upper side of the brush holder 200; lifting drive device 500, used to drive the torque rotating shaft 420 to rotate.

[0040] For example, such as Figure 1 and Figure 2 As shown, the chassis 100 serves as the main structure of the cleaning device. A brush holder 200 is located below the chassis 100, and a brush 210 is mounted on the underside of the brush holder 200. The brush holder 200 is controlled to move up and down via a lifting drive device, which in turn drives the brush 210 to move up and down. (Refer to...) Figure 2 , Figure 3A linkage 300 connects the upper side of the brush holder 200 and the lower side of the chassis 100, driving the brush holder 200 and chassis 100 to move together. The lifting arm 400 has a lifting shaft 410 and a torque shaft 420 connected to its two ends respectively. The lifting shaft 410 is connected to the upper side of the brush holder 200, and the torque shaft 420 is connected to the lower side of the chassis 100, driving the brush holder 200 and chassis 100 to move together. A torque plate 421 is fixedly connected to the outer wall of the torque shaft 420. A first buffer spring 430 is provided between the upper side of the torque plate 421 and the lower side of the lifting arm 400 to provide buffering force between the torque plate 421 and the lifting arm 400. A second buffer spring 440 is provided between the lower side of the torque plate 421 and the lower side of the brush holder 200 to provide buffering force between the torque plate 421 and the brush holder 200. The lifting drive device 500 is used to drive the torque shaft 420 to rotate. The brush holder 200 is controlled to lift and lower through the lifting drive device 500, which in turn drives the brush 210 to lift and lower.

[0041] In actual operation, taking floor cleaning as an example, the brush holder 200 is controlled to lift and lower via the lifting drive device 500. When the brush holder 200 rises, the brush 210 is out of contact with the floor. When the brush holder 200 descends, the brush 210 contacts the floor for cleaning. The height at which the brush holder 200 descends affects the contact pressure between the brush 210 and the floor, effectively adjusting the cleaning pressure.

[0042] Reference Figure 4 During the lifting and lowering of the brush holder 200, the torque shaft 420 rotates in coordination, and the first buffer spring 430 and the second buffer spring 440 play a role in both moving and restricting the brush holder 200.

[0043] When the brush holder 200 needs to be raised, the torque shaft 420 drives the torque plate 421 to rise. At this time, the torque plate 421 effectively supports the lifting arm 400 through the first buffer spring 430 on its upper side. The first buffer spring 430 provides support by applying spring force between the torque plate 421 and the lifting arm 400. When the brush holder 200 is lifted by the lifting arm 400, the second buffer spring 440 on the lower side of the torque plate 421 can push downward against the upper part of the brush holder 200. The second buffer spring 440, in conjunction with the linkage rod 300, provides a buffering and stabilizing effect on the brush holder 200.

[0044] After the brush holder 200 is lifted off the ground, since the brush holder 200 can rotate around the lifting shaft 410, the front side of the brush holder 200 will tend to flip downward under the action of gravity, so that the second buffer spring 440 no longer exerts a spring thrust on the brush holder 200. At the same time, the front side of the brush holder 200 will be pulled upward by the linkage 300, keeping the brush holder 200 in a roughly horizontal position during lifting and lowering.

[0045] When it is necessary to control the brush holder 200 to descend, the torque shaft 420 drives the torque plate 421 to descend, and the lifting arm 400 also descends. At this time, the first buffer spring 430 continues to support the lifting arm 400 and provide buffering force. In this way, when the brush holder 200 is lifted and descended by the lifting arm 400, the first buffer spring 430 continues to play a supporting role, and the second buffer spring 440 no longer generates spring thrust with the brush holder 200.

[0046] Once the brush holder 200 descends to contact the ground, its posture is fixed, and the front of the brush holder 200 no longer tends to flip downwards. Only then does the second buffer spring 440 exert spring thrust on the brush holder 200 again, thus playing a buffering and stabilizing role.

[0047] Furthermore, during the cleaning process, uneven ground can cause fluctuations in the pressure of the brush plate 210, affecting its cleaning effect. Therefore, the brush plate frame 200 needs to be fine-tuned during cleaning. The first buffer spring 430 and the second buffer spring 440 also play a coordinating role in fine-tuning the brush plate frame 200. When the ground is raised, the brush plate frame 200 is slightly raised, with the first buffer spring 430 providing support, while the second buffer spring 440 and the linkage rod 300 stabilize the brush plate. When the ground is lowered, the brush plate frame 200 is slightly lowered, with the first buffer spring 430 providing support, and the second buffer spring 440 no longer exerts spring thrust on the brush plate frame 200.

[0048] The linkage 300 plays a stabilizing role in the above process, ensuring that the entire brush holder 200 and brush 210 do not deviate during the rising and falling process, and ensuring that the brush and the cleaning device maintain a predetermined angle between their predetermined directions of travel. This can disperse the resistance to forward movement and reduce the jumping of the brush 210.

[0049] In some embodiments of this utility model, a brush motor 211 is provided on the brush holder 200, and the brush motor 211 is used to drive the brush 210 to rotate for cleaning.

[0050] In some embodiments of this utility model, the brush device has a controller to drive the lifting drive device 500. During the cleaning process, uneven ground can cause fluctuations in the pressure of the brush, affecting its cleaning effect. Therefore, during movement, the controller updates the real-time feedback current signal from the brush motor to adjust the brush height. When the pressure decreases, a signal is sent to the lifting drive device 500 to lower it, ensuring sufficient downward pressure for brush cleaning. When the pressure increases, a signal is sent to the lifting drive device 500 to raise it, reducing the downward pressure during brush cleaning and restoring the brush motor current to its normally set value.

[0051] In some embodiments of this utility model, reference is made to Figure 3 , Figure 6 In some embodiments of this utility model, the two ends of the linkage 300 are respectively connected to the first rotating shaft 310 and the second rotating shaft 320 of the linkage. The first rotating shaft 310 of the linkage is connected to the upper side of the brush holder 200, and the second rotating shaft 320 of the linkage is connected to the lower side of the chassis 100, so that the linkage 300 can rotate flexibly.

[0052] In some embodiments of this utility model, the two ends of the linkage 300 are respectively connected to a first linkage shaft 310 and a second linkage shaft 320. Rear linkage lugs 220 are provided on the left and right sides of the upper side of the brush holder 200, and the first linkage shaft 310 is connected to the rear linkage lugs 220. Front linkage lugs 110 are provided on the left and right sides of the lower side of the chassis 100, and the second linkage shaft 320 is connected to the front linkage lugs 110. Thus, the linkage 300 is installed on the left and right sides respectively. This design ensures that the brush holder 200 and brush 210 do not tilt left or right or forward or backward during rising and falling, maintaining sufficiently precise and stable lifting.

[0053] In some embodiments of this utility model, a rear brush plate holder 230 is provided on the rear side of the upper side of the brush plate holder 200, and the lifting shaft 410 is connected to the rear brush plate holder 230. A front brush plate holder 120 is provided on the front side of the lower side of the chassis 100, and the torque shaft 420 is connected to the front brush plate holder 120, so as to ensure that when the lifting arm 400 drives the brush plate holder 200 to rise and fall, the rising and falling process of the brush plate holder 200 is sufficiently stable.

[0054] In some embodiments of this utility model, the torque shaft 420 and the front brush plate bracket 120 are connected by a first torque bearing 423.

[0055] In some embodiments of this utility model, the torque shaft 420 is connected to the front end of the lifting arm 400 via a second torque bearing 424.

[0056] In some embodiments of this utility model, a shock absorber 450 is also provided between the upper side of the torsion plate 421 and the lower side of the lifting arm 400. The shock absorber 450 is used to filter the pressure of the ground, reduce the vibration during operation, and reduce the pressure on the lifting drive device 500 due to frequent changes. During the cleaning process, in addition to the first buffer spring 430 providing spring buffering force to the lifting arm 400 and the second buffer spring 440 providing spring buffering force to the brush holder 200, the shock absorber 450 plays a shock-absorbing role between the torsion plate 421 and the lifting arm 400, which can ensure that the vibration generated by the brush working is eliminated by the shock absorber 450.

[0057] In some embodiments of this utility model, reference is made to Figure 5 A lifting arm pressure plate 460 is provided on the lower side of the lifting arm 400. The lifting arm pressure plate 460 presses against the upper side of the first buffer spring 430 and the upper side of the shock absorber 450, so that the lifting arm 400 can be designed at a more reasonable angle to press against the upper side of the first buffer spring 430 and the upper side of the shock absorber 450, thereby improving the buffering and shock absorption effect of the first buffer spring 430 and the shock absorber 450.

[0058] In some embodiments of this utility model, a proximity plate 470 is provided on the upper side of the lifting arm 400, and a proximity switch 471 is provided on the proximity plate 470. The proximity switch 471 can press against the lower side of the chassis 100. That is, the proximity switch 471 is connected to the lifting arm 400. When the lifting arm 400 rises to a predetermined height, the proximity switch 471 will press against the chassis 100 and send a control signal to control the lifting arm 400 to stop rising.

[0059] In some embodiments of this utility model, the lifting drive device 500 of the brush plate device adopts an electric piston device, and the lifting drive device 500 controls the lifting and lowering movement of the brush plate frame 200. The lifting drive device 500 includes a piston cylinder 510 on the front side and a push rod 520 on the rear side, and the piston cylinder 510 and the push rod 520 can extend and retract. A front push rod lug 130 is provided on the front side of the underside of the chassis 100. The front end of the piston cylinder 510 is connected to the front push rod lug 130 through a rotating shaft. A torque rocker arm 422 is fixedly connected to the torque rotating shaft 420, and the rear end of the push rod 520 is connected to the torque rocker arm 422 through a rotating shaft. In this way, when the push rod 520 extends and retracts, it can drive the torque rocker arm 422 to rotate, and then drive the torque rotating shaft 420 to rotate through the torque rocker arm 422. This method can provide the torque rotating shaft 420 with a sufficiently large and stable torque to drive the lifting and lowering movement of the brush plate frame 200.

[0060] In some embodiments of this utility model, when the brush plate 210 is reduced to the maximum pressure on the ground, the angle between the rocker arm of the torque shaft 420 and the electric piston device is about 90°. At this time, the output torque of the electric piston device is at its maximum, which makes better use of the force of the electric piston device and also plays a protective role.

[0061] In some embodiments of this utility model, reference is made to Figure 5 , Figure 6 The torque shaft 420 has a non-circular end 425 at its end, and the torque rocker arm 422 has a non-circular hole 426. The non-circular end 425 of the torque shaft is inserted into the non-circular hole 426 of the torque rocker arm to ensure that the torque rocker arm 422 can smoothly drive the torque shaft 420 to rotate.

[0062] A floor scrubber according to a second aspect of the present invention includes a brush device according to the first aspect of the present invention described above.

[0063] The floor scrubber according to the present invention improves the working stability of the floor scrubber and enhances the user experience by adopting the above-mentioned brush device.

[0064] In some embodiments of this utility model, a baffle plate 240 is provided at the edge of the brush holder 200, and a baffle sheet 241 is provided on the lower side of the baffle plate 240, with the upper end of the baffle sheet 241 connected to the baffle plate 240. The baffle plate 240, together with the baffle sheet 241, can effectively prevent water from splashing when the brush 210 is rotating, thereby maintaining a clean working environment. The upper end of the baffle sheet 241 is connected to the baffle plate 240, meaning the baffle plate 240 serves as a fixing structure for the baffle sheet 241, ensuring that the baffle sheet 241 is sufficiently stable during the high-speed rotation of the brush 210.

[0065] In some embodiments of this utility model, a water distribution valve 250 is provided on the upper side of the brush holder 200. The water distribution valve 250 has a main water inlet 251 and a water distribution outlet 252. The main water inlet 251 is connected to an external water source, and the water distribution outlet 252 is connected to a water spray pipe 253. A water spray nozzle 254 is provided on the output side of the water spray pipe 253, and the water spray nozzle 254 faces the brush plate 210. After water is injected into the main water inlet 251, it is distributed to each water spray nozzle 254 through the water distribution outlet 252 to replenish water to the corresponding brush plate 210, thus cooperating with the cleaning work of the brush plate 210.

[0066] In actual operation, the main water inlet 251 is directly connected to an external water source, ensuring a stable water supply. The branch inlets 252 are connected to a series of spray pipes 253, each equipped with a spray nozzle 254 at its output end. These nozzles are precisely pointed towards their respective brush discs 210. When water is injected into the main water inlet 251, it is evenly distributed to each spray nozzle 254 through the branch inlets 252. This ensures that each spray nozzle 254 provides an appropriate amount of water to its corresponding brush disc 210, effectively supporting and enhancing the cleaning performance of the brush disc 210.

[0067] A wall and window cleaning machine according to a third aspect of the present invention includes a brush device according to the first aspect of the present invention described above.

[0068] Other configurations and operations of the cleaning devices according to different embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0069] The following is for reference. Figure 1 and Figure 2 The brushing device according to an embodiment of the present invention is described in detail with reference to a specific example. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0070] like Figure 1 and Figure 2 As shown, the brushing device of this utility model embodiment includes a chassis 100, a brushing frame 200, a linkage rod 300, a lifting arm 400, and a lifting drive device 500.

[0071] The chassis 100 is equipped with a front connecting rod lug 110, a front brush plate bracket 120, and a front push rod lug 130.

[0072] The brush holder 200 is equipped with a brush 210, a brush motor 211, a rear connecting rod lug 220, a rear brush holder bracket 230, a water baffle 240, a baffle plate 241, a water distribution valve 250, a main water inlet 251, a water distribution outlet 252, a water spray pipe 253, and a water spray nozzle 254.

[0073] The linkage 300 is provided with a first linkage shaft 310 and a second linkage shaft 320.

[0074] The lifting arm 400 includes a lifting shaft 410, a torque shaft 420, a torque plate 421, a torque rocker arm 422, a first torque bearing 423, a second torque bearing 424, a non-circular end of the torque shaft 425, a non-circular hole of the torque rocker arm 426, a first buffer spring 430, a second buffer spring 440, a shock absorber 450, a lifting arm pressure plate 460, a proximity plate 470, and a proximity switch 471.

[0075] The lifting drive device 500 includes a piston cylinder 510 and a push rod 520. The lifting drive device 500 is connected to a torque rocker arm 422 on a torque shaft 420.

[0076] According to the brush plate device of this utility model embodiment, by such arrangement, at least the following effects can be achieved: when it is necessary to control the brush plate frame 200 to rise, the torque shaft 420 drives the torque plate 421 to rise, and the first buffer spring 430 provides support by applying spring thrust between the torque plate 421 and the lifting arm 400; when the brush plate frame 200 is lifted, the second buffer spring 440 cooperates with the linkage rod 300 to buffer and stabilize the brush plate frame 200; when it is necessary to control the brush plate frame 200 to fall, the torque shaft 420 drives the torque plate 421 to fall, and the brush plate frame 200 is lifted. During lifting and lowering, the first buffer spring 430 provides support, and the second buffer spring 440 no longer exerts spring thrust on the brush plate frame 200, making the lifting and lowering adjustment of the brush plate 210 extremely stable, avoiding swaying and deviation, and ensuring the smooth progress of the cleaning work; it can better cooperate with the controller to adjust the height of the brush plate 210, accurately control the pressure of the brush plate 210 on the ground, making the cleaning effect more obvious, while also protecting the ground; it protects the normal operation of various components of the cleaning device, extends the life of the workpiece, filters ground vibration, reduces damage to other components, and also ensures a better user experience.

[0077] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A brush disc device, characterized in that, include: Chassis (100); A brush holder (200) is located below the chassis (100), and a brush (210) is provided on the lower side of the brush holder (200). Linkage rod (300) is connected between the upper side of the brush holder (200) and the lower side of the chassis (100); A lifting arm (400) is provided, with a lifting shaft (410) and a torque shaft (420) connected to its two ends respectively. The lifting shaft (410) is connected to the upper side of the brush holder (200), and the torque shaft (420) is connected to the lower side of the chassis (100). A torque plate (421) is fixedly connected to the outer wall of the torque shaft (420), and a first buffer spring (421) is provided between the torque plate (421) and the lifting arm (400). 30), the upper end of the first buffer spring (430) abuts against the lower side of the lifting arm (400), the lower end of the first buffer spring (430) abuts against the upper side of the torque plate (421), a second buffer spring (440) is provided between the torque plate (421) and the brush holder (200), the upper end of the second buffer spring (440) abuts against the lower side of the torque plate (421), and the lower end of the second buffer spring (440) abuts against the upper side of the brush holder (200); A lifting drive device (500) is used to drive the torque shaft (420) to rotate.

2. The brush disc device of claim 1, wherein, The two ends of the linkage (300) are respectively connected to the first pivot (310) and the second pivot (320) of the linkage. The left and right sides of the upper side of the brush holder (200) are provided with rear link ears (220). The first pivot (310) of the linkage is connected to the rear link ears (220). The left and right sides of the lower side of the chassis (100) are provided with front link ears (110). The second pivot (320) of the linkage is connected to the front link ears (110).

3. The brush device according to claim 1, characterized in that, A rear brush holder bracket (230) is provided on the rear side of the upper side of the brush holder (200), and the lifting shaft (410) is connected to the rear brush holder bracket (230). A front brush holder bracket (120) is provided on the front side of the lower side of the chassis (100), and the torque shaft (420) is connected to the front brush holder bracket (120).

4. The brush disc assembly of claim 1, wherein, A shock absorber (450) is also provided between the upper side of the torsion plate (421) and the lower side of the lifting arm (400).

5. The brush disc assembly of claim 1, wherein, The lifting arm (400) is provided with a proximity plate (470) on its upper side, and a proximity switch (471) is provided on the proximity plate (470). The proximity switch (471) can press against the lower side of the chassis (100).

6. The brush disc assembly of claim 1, wherein, The two ends of the linkage (300) are respectively connected to the first pivot (310) and the second pivot (320). The first pivot (310) is connected to the upper side of the brush holder (200), and the second pivot (320) is connected to the lower side of the chassis (100).

7. The brush disc assembly of claim 1, wherein, The lifting drive device (500) adopts an electric piston device. The lifting drive device (500) includes a piston cylinder (510) on the front side and a push rod (520) on the rear side. A front push rod lug (130) is provided on the front side of the chassis (100). The front end of the piston cylinder (510) is connected to the front push rod lug (130) through a rotating shaft. A torque rocker arm (422) is fixedly connected on the torque rotating shaft (420). The rear end of the push rod (520) is connected to the torque rocker arm (422) through a rotating shaft.

8. A scrubber machine characterized in that, Includes the brush device according to any one of claims 1 to 7.

9. The machine of claim 8, wherein, A baffle plate (240) is provided at the edge of the brush holder (200), and a baffle sheet (241) is provided on the lower side of the baffle plate (240). The upper end of the baffle sheet (241) is connected to the baffle plate (240).

10. The walk-behind scrubber of claim 8, wherein, A water distribution valve (250) is provided on the upper side of the brush holder (200). The water distribution valve (250) has a main water inlet (251) and a water distribution outlet (252). The main water inlet (251) is connected to an external water source. The water distribution outlet (252) is connected to a water spray pipe (253). A water spray nozzle (254) is provided on the output side of the water spray pipe (253). The water spray nozzle (254) faces the brush holder (210).

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