Side washing floor brush capable of expanding cleaning width

Abstract

The utility model relates to the field of scrubbers, in particular to a cleaning-width-expandable side scrubbing brush which comprises a machine body, a supporting part, a scrubbing assembly, a lower swing assembly and a driving assembly, and one end of the supporting part is fixedly connected with the machine body and located at the right front end of the machine body; the floor washing assembly is mounted in the machine body; one end of the lower hem assembly is rotationally connected with the supporting piece; one end of the driving assembly is hinged to the supporting piece, and the other end of the driving assembly is hinged to the lower swing assembly. By arranging the lower swing assembly, the driving assembly and the floor washing assembly, the driving assembly drives the lower swing assembly to rotate and swing downwards, the floor washing assembly is driven by the lower swing assembly to gradually stretch out of the machine body, the stretching width of the floor washing assembly is larger than the width of the water absorption rake, welt cleaning can be achieved, and the machine body can be far away from the side wall; the risk that the machine body is collided is reduced, and the problem that an existing scrubber is poor in welt cleaning effect is solved.

Description

Technical Field

[0001] The present application relates to the field of floor scrubbers, and in particular to a floor scrubber brush capable of expanding the cleaning width. Background Art

[0002] The existing floor scrubbers are mostly designed to wash and brush the floor in the front, with a water suction rake at the rear to collect the dirty water. To ensure that the dirty water can be collected to the maximum extent when going straight or turning, the water suction rake is wider than the floor scrubbing brush. However, due to the limitations of the cleaning site and the water suction rake, it is difficult for the floor scrubber to clean to the wall, and additional cleaning work is required.

[0003] When the machine is cleaning along the edge, it will be limited by the width of the suction rake. The wider the suction rake is than the scrubbing brush, the farther the scrubbing brush is from the wall, and the better cleaning effect along the edge cannot be achieved. Some machines reduce the width of the suction rake to achieve the purpose of cleaning along the edge of the whole machine, but this also increases the risk of collision with the main body of the machine. Utility Model Content

[0004] In order to improve the problem that existing floor scrubbers have poor edge cleaning effects, the present application provides an edge scrubbing brush that can expand the cleaning width.

[0005] The present application provides a side-scrubbing brush with an expandable cleaning width, which adopts the following technical solution:

[0006] A side scrubbing brush capable of extending the cleaning width, comprising:

[0007] body;

[0008] A support member, one end of which is fixedly connected to the fuselage and is located at the right front end of the fuselage;

[0009] A floor scrubbing assembly, the floor scrubbing assembly being installed in the machine body;

[0010] A swing assembly, one end of which is rotatably connected to the support member, and the other end of which is hinged to the floor scrubbing assembly;

[0011] A driving assembly, one end of which is hinged to the support member, and the other end of which is hinged to the swing assembly, and the driving assembly is used to drive the swing assembly to rotate and swing relative to the fuselage.

[0012] By adopting the above technical solution, when floor washing operations are required, the driving component drives the lower swing component to rotate and swing downward, and the floor washing component is gradually extended out of the body under the drive of the lower swing component and gradually descends until the floor washing component contacts the ground, the driving component stops working, and the floor washing component starts working; specifically, the extended width of the floor washing component is greater than the width of the water suction rake, which can not only achieve edge cleaning, but also keep the body away from the side wall, reduce the risk of collision of the body, and improve the problem of poor edge cleaning effect of existing floor washing machines.

[0013] Optionally, the hem assembly includes:

[0014] A linkage component, wherein the linkage component is rotatably mounted on the support member, and an output end of the drive assembly is hinged to one end of the linkage component;

[0015] A vertical component, wherein the vertical component is vertically mounted on the support member, and the vertical component is rotatably connected to the support member;

[0016] One end of the vertical component is connected to the linkage component;

[0017] A swing component, wherein one end of the swing component is hinged to the vertical component, and the other end of the swing component is hinged to the floor scrubbing assembly;

[0018] A lifting component, one end of which is connected to the linkage component, and the other end of which is connected to the floor scrubbing assembly; the lifting component is flexible.

[0019] By adopting the above technical solution, the driving component drives the linkage component to rotate, the linkage component drives the vertical component to rotate, and the vertical component drives the floor washing component to rotate through the swinging component; at the same time, the linkage component drives the lifting component to swing down, and the floor washing component rotates and swings down in cooperation with the swinging component and the lifting component until the floor washing component contacts the ground and the driving component stops working; by arranging the linkage component, the vertical component, the swinging component and the lifting component, the lifting and rotation of the floor washing component can be realized under the action of a power source, so that the floor washing component can be contracted and expanded relative to the fuselage, which not only widens the cleaning width of the floor washing machine and improves the cleaning efficiency, but also effectively solves the problem of poor edge cleaning effect of medium and large floor washing machines; the floor washing component protrudes from the fuselage, which is not only convenient for the operator to observe, but also conducive to protecting the fuselage body and reducing the chance of collision.

[0020] Optionally, the driving assembly includes an electric push rod, one end of which is hinged to the support member, and the other end of which is hinged to the linkage member.

[0021] By adopting the above technical solution, the electric push rod drives the linkage component to rotate, the linkage component drives the vertical component to rotate, and the vertical component drives the floor washing component to rotate through the swing component; at the same time, the linkage component drives the lifting component to swing downward, and the floor washing component drives the floor washing component to rotate and swing downward with the cooperation of the swing component and the lifting component; under the action of a power source, the lifting and rotation of the floor washing component can be realized, so that the floor washing component can be contracted and expanded relative to the fuselage, which can reduce costs and simplify the structure to a certain extent.

[0022] Optionally, the linkage component and the vertical component are connected via a first elastic component, one end of the first elastic component is connected to the linkage component, and the other end of the first elastic component is connected to the vertical component; the first elastic component is elastic.

[0023] By adopting the above technical solution, when the electric push rod rotates by driving the linkage component, the linkage component drives the first elastic component to swing, the first elastic component drives the vertical component to rotate, and the vertical component drives the floor washing component to rotate through the swing component; at the same time, the linkage component drives the lifting component to swing down, and the floor washing component drives the floor washing component to rotate, swing down, and extend outward under the cooperation of the swing component and the lifting component. When the floor washing component encounters an obstacle, the first elastic component is deformed, and the floor washing component shrinks into the body, so that the floor washing component has a buffer space and provides buffer time for the operator to change the forward direction of the floor washing machine, avoiding rigid impact between the floor washing component and the obstacle. After passing the obstacle, the floor washing component automatically unfolds to the original position under the reaction force of the first elastic component, thereby reducing the damage caused by the rigid collision between the floor washing component and the obstacle and extending the service life of the floor washing component.

[0024] Optionally, the floor scrubbing assembly includes:

[0025] A bracket, wherein one end of the swing component is hinged to an end surface of the bracket, and one end of the lifting component is connected to the end surface of the bracket;

[0026] A brush plate, the brush plate is rotatably mounted on the bracket;

[0027] A brush disc driving component is fixedly mounted on the bracket, the brush disc driving component is connected to the brush disc, and the brush disc driving component is used to drive the brush disc to rotate relative to the bracket.

[0028] Optionally, the floor scrubbing assembly further includes:

[0029] A swing frame, the swing frame is rotatably mounted on the bracket;

[0030] A water-blocking component, one end of which is plugged into the swing frame and the other end of which is in contact with the ground; the water-blocking component is elastic;

[0031] A second elastic component, one end of which is connected to the swing frame, and the other end of which is connected to the bracket; the second elastic component is elastic.

[0032] By adopting the above technical solution, the swing frame is used to support the water retaining component to rotate along the bracket, and the second elastic component is used to provide a reaction force to the swing frame, so that the water retaining component swings to different positions under different friction forces. Because the width of the brush disc after extension is greater than the water suction rake, if the flow direction of the sewage is not guided, there will be unabsorbed water stains. In the initial state, the water retaining component is located on the outside of the brush disc; when the floor scrubber is moving straight, the water retaining component swings to the rear side of the brush disc under the action of friction, and the sewage is introduced into the processing range of the water suction rake; at the same time, the second elastic component is deformed. When the floor scrubber turns, the water retaining component swings to the outside of the brush disc under the action of friction, and the sewage is introduced into the processing range of the water suction rake. When the water retaining component is not in contact with the ground, the water retaining component is reset to the outside of the brush disc under the reaction force of the second elastic component. By providing a swing frame, a water retaining component and a second elastic component, the water retaining component can adaptively swing to the corresponding position under different motion states of the floor scrubber to guide the sewage, thereby coping with the situation where the sewage splashes and overflows due to the brush disc extending out of the machine body and being wider than the water suction rake, and collecting the sewage within the range covered by the water suction rake. At the same time, it also copes with the problem of sewage overflowing from the front end of the brush disc when turning left.

[0033] Optionally, the swing component includes a parallelogram connecting rod, one end of the parallelogram connecting rod is hinged to the vertical component, and the other end of the parallelogram connecting rod is hinged to the bracket.

[0034] By adopting the above technical solution, the parallelogram connecting rod is arranged to support the brush plate to maintain a horizontal state during the lifting and extending process, thereby reducing the possibility of damage caused by squeezing the brush plate against the ground when the brush plate is tilted and descended.

[0035] Optionally, a gas spring is provided on the vertical component, one end of the gas spring is hinged to the vertical component, and the other end of the gas spring is hinged to the middle part of the parallelogram connecting rod.

[0036] By adopting the above technical solution, by installing a gas spring between the parallelogram connecting rod and the vertical component, it is ensured that the brush plate has sufficient working pressure and that the side brush does not bounce up and down when working on an uneven ground.

[0037] In summary, this application has the following beneficial effects:

[0038] 1. By setting a swing assembly, a driving assembly and a floor washing assembly, the driving assembly drives the swing assembly to rotate and swing, and the floor washing assembly gradually extends out of the fuselage under the drive of the swing assembly. The width of the floor washing assembly after extension is greater than the width of the water suction rake, which can not only achieve edge cleaning, but also keep the fuselage away from the side wall, reduce the risk of collision of the fuselage main body, and improve the problem of poor edge cleaning effect of existing floor washing machines.

[0039] 2. By setting linkage parts, vertical parts, swing parts and lifting parts, the lifting and rotation of the floor washing assembly can be realized under the action of a power source, so that the floor washing assembly can shrink and expand relative to the machine body, which not only widens the cleaning width of the floor washing machine and improves the cleaning efficiency, but also effectively solves the problem of poor edge cleaning effect of medium and large floor washing machines; the floor washing assembly protrudes from the machine body, which is not only convenient for the operator to observe, but also helps to protect the main body of the machine and reduce the chance of collision.

[0040] 3. By setting the first elastic component, when the floor scrubber assembly hits an obstacle, the first elastic component is deformed and the floor scrubber assembly shrinks into the machine body, so that the floor scrubber assembly has a buffer space and provides buffer time for the operator to change the forward direction of the floor scrubber, thereby avoiding rigid impact between the floor scrubber assembly and the obstacle. After passing the obstacle, the floor scrubber assembly automatically unfolds to the original position under the reaction force of the first elastic component, thereby reducing the damage of the floor scrubber assembly after rigid collision with the obstacle and extending the service life of the floor scrubber assembly.

[0041] 4. By setting the swing frame, the water retaining component and the second elastic component, the water retaining component can adaptively swing to the corresponding position under different motion states of the floor scrubber to guide the sewage, thereby coping with the situation where the sewage splashes and overflows because the brush plate extends out of the machine body and is wider than the water suction rake, and the sewage is collected within the range covered by the water suction rake. At the same time, it also copes with the problem of sewage overflowing from the front end of the brush plate when turning left.

[0042] 5. The parallelogram connecting rod can support the brush plate to maintain a horizontal state during the lifting and extension process, and reduce the possibility of damage caused by squeezing the brush plate against the ground when the brush plate tilts down.

[0043] 6. By installing a gas spring between the parallelogram connecting rod and the vertical component, it can ensure that the brush plate has sufficient working pressure and that the side brush plate does not bounce up and down when working on an uneven ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic diagram of the overall structure of a side-scrubbing brush with an expandable cleaning width disclosed in this embodiment;

[0045] Figure 2 This is a side upward view of a side scrubbing brush with an expandable cleaning width disclosed in this embodiment;

[0046] Figure 3 This is a side top view of a side scrubbing brush with an expandable cleaning width disclosed in this embodiment;

[0047] Figure 4 This is a bottom view of a floor scrubbing assembly of a side scrubbing brush capable of expanding the cleaning width disclosed in this embodiment.

[0048] Description of reference numerals:

[0049] 1. Support member; 2. Floor washing assembly; 21. Bracket; 22. Brush plate; 23. Brush plate driving member; 24. Swing frame; 25. Water retaining member; 26. Second elastic member; 3. Swing assembly; 31. Linkage member; 32. Vertical member; 33. Swinging member; 34. Lifting member; 35. Linkage weldment; 36. Lifting weldment; 37. Rotating weldment; 4. Driving assembly; 5. First elastic member; 6. Gas spring; 7. Anti-collision rubber wheel. DETAILED DESCRIPTION

[0050] The following is combined with Figure 1-4 This application is described in further detail.

[0051] The present application embodiment discloses a side-scrubbing brush with an expandable cleaning width, see Figure 1 and Figure 2 , including a machine body, a support 1, a floor-cleaning assembly 2, a lower swing assembly 3 and a driving assembly 4. One end of the support 1 is fixedly connected to the machine body and is located at the right front end of the machine body; the floor-cleaning assembly 2 is installed in the machine body; one end of the lower swing assembly 3 is rotatably connected to the support 1, and the other end is hinged to the floor-cleaning assembly 2; one end of the driving assembly 4 is hinged to the support 1, and the other end is hinged to the lower swing assembly 3, and the driving assembly 4 is used to drive the lower swing assembly 3 to rotate and swing relative to the machine body. The width of the floor-cleaning assembly 2 after extension is greater than the width of the water-sucking rake, which can not only achieve edge cleaning, but also keep the machine body away from the side wall, reduce the risk of collision of the machine body, and improve the problem of poor edge cleaning effect of existing floor-cleaning machines.

[0052] See also Figure 1 and Figure 2 Specifically, the support member 1 includes a support plate, and the support plate is fixedly installed at the right front end of the fuselage.

[0053] See also Figure 1 and Figure 2 The lower swing component 3 includes a linkage component 31, a vertical component 32, a swing component 33 and a lifting component 34. The linkage component 31 is rotatably installed on the support 1, and the output end of the driving component 4 is hinged to one end of the linkage component 31; the vertical component 32 is vertically installed on the support 1, and the vertical component 32 is rotatably connected to the support 1; one end of the vertical component 32 is connected to the linkage component 31; the swing component 33 is hinged to the vertical component 32 at one end, and is hinged to the floor washing component 2 at the other end; one end of the lifting component 34 is connected to the linkage component 31, and the other end is connected to the floor washing component 2; the lifting component 34 is flexible.

[0054] See also Figure 2 and Figure 3Furthermore, the linkage component 31 and the vertical component 32 are connected via a first elastic component 5, one end of the first elastic component 5 is connected to the linkage component 31, and the other end is connected to the vertical component 32; the first elastic component 5 is elastic.

[0055] Specifically, the linkage component 31 includes a linkage rod, and both ends of the linkage rod are rotatably connected to the support plate. Both ends of the linkage rod are welded with a linkage weldment 35 and a lifting weldment 36 respectively; both ends of the linkage weldment 35 are respectively hinged to the driving component 4 and connected to the first elastic component 5; one end of the lifting component 34 is connected to the lifting weldment 36.

[0056] The driving assembly 4 includes an electric push rod, one end of which is hinged to the support member 1 , and the other end of which is hinged to the linkage member 31 .

[0057] The lifting component 34 includes a chain, and two ends of the chain are connected to the floor scrubbing assembly 2 and the lifting weldment 36 respectively.

[0058] The vertical component 32 includes a vertical rod, which is vertically mounted on the support plate, and both ends of the vertical rod are rotatably connected to the support plate. A rotating weldment 37 is welded on one end of the vertical component 32, and one end of the first elastic component 5 is connected to the rotating weldment 37.

[0059] The first elastic component 5 includes a first tension spring, one end of which is connected to the linkage weldment 35 , and the other end of which is connected to the rotating weldment 37 .

[0060] The swinging member 33 includes a parallelogram connecting rod, one end of which is hinged to the vertical member 32, and the other end is hinged to the floor scrubbing assembly 2. The parallelogram connecting rod can support the brush plate 22 to maintain a horizontal state during the lifting and extension process, thereby reducing the occurrence of damage caused by the brush plate 22 being squeezed against the ground when the brush plate 22 is tilted and descended.

[0061] See also Figure 1 and Figure 2 The floor scrubbing assembly 2 includes a bracket 21, a brush disc 22 and a brush disc 22 driving component. One end of a swinging component 33 is hinged to the end surface of the bracket 21, and one end of a lifting component 34 is connected to the end surface of the bracket 21; the brush disc 22 is rotatably mounted on the bracket 21; the brush disc 22 driving component is fixedly mounted on the bracket 21, the brush disc 22 driving component is connected to the brush disc 22, and the brush disc 22 driving component is used to drive the brush disc 22 to rotate relative to the bracket 21.

[0062] See also Figure 2 and Figure 3 Specifically, the brush plate 22 driving component includes a motor, the motor is fixedly mounted on the end surface of the bracket 21, and the brush plate 22 is fixedly connected to the output spindle of the motor.

[0063] See also Figure 3 and Figure 4 Furthermore, the floor washing assembly 2 also includes a swing frame 24, a water retaining component 25 and a second elastic component 26. The swing frame 24 is rotatably mounted on the bracket 21; one end of the water retaining component 25 is inserted into the swing frame 24, and the other end is in contact with the ground; the water retaining component 25 is elastic; one end of the second elastic component 26 is connected to the swing frame 24, and the other end is connected to the bracket 21; the second elastic component 26 is elastic.

[0064] Specifically, the water-blocking component 25 includes a water-blocking rubber strip, one end of which is plugged into the swing frame 24 and the other end is in contact with the ground. The second elastic component 26 includes a second tension spring, one end of which is connected to the swing frame 24 and the other end is connected to the bracket 21; the second tension spring is used to apply a reaction force to the swing frame 24.

[0065] See also Figure 2 and Figure 3 The vertical component 32 is provided with a gas spring 6, one end of the gas spring 6 is hinged to the vertical component 32, and the other end is hinged to the middle of the parallelogram connecting rod. By installing the gas spring 6 between the parallelogram connecting rod and the vertical component 32, it is ensured that the brush plate 22 has sufficient working pressure and the side brush plate 22 does not bounce up and down when working on an uneven ground.

[0066] When the drive assembly 4 drives the brush plate 22 to retract inside the fuselage, the gas spring 6 is compressed, the piston moves inward, compresses the air in the airbag, and stores energy. When the drive assembly 4 drives the brush plate 22 to extend outside the fuselage, the valve opens, the air is discharged from the airbag, the piston moves outward, and the gas spring 6 extends to release the stored energy. In this way, the gas spring 6 can provide an adjustable support force and maintain a constant torque under different load conditions, applying a constant pressure to the brush plate 22.

[0067] The bracket 21 is provided with an anti-collision rubber wheel 7, which is rotatably mounted on the bracket 21, and the anti-collision rubber protrudes from the outside of the brush disc 22. By providing the anti-collision rubber wheel 7, on the one hand, the impact force transmitted to the brush disc 22 by the protruding object can be reduced, and on the other hand, it can first contact with the protruding object, reducing the probability of the brush disc 22 directly colliding with the protruding object; and in combination with the first elastic component 5, the brush disc 22 has a buffer space and provides a buffer time for the operator to change the forward direction of the floor scrubber, thereby avoiding rigid impact between the brush disc 22 and obstacles and extending the service life of the brush disc 22.

[0068] The working principle of a side scrubbing brush with expandable cleaning width in the present application is as follows:

[0069] In the initial state, the water-blocking component 25 is located on the outside of the brush disc 22; the driving component 4 rotates by driving the linkage component 31, the linkage component 31 drives the first elastic component 5 to swing, the first elastic component 5 drives the vertical component 32 to rotate, and the vertical component 32 drives the floor washing component 2 to rotate through the swinging component 33; at the same time, the linkage component 31 drives the lifting component 34 to swing downward, and the floor washing component 2, with the cooperation of the swinging component 33 and the lifting component 34, drives the floor washing component 2 to rotate, swing downward, and extend outward until the brush disc 22 contacts the ground, and the driving component 4 stops working.

[0070] When the floor scrubber assembly 2 hits an obstacle, the first elastic component 5 is deformed and the floor scrubber assembly 2 contracts into the body, so that the floor scrubber assembly 2 has a buffer space and provides a buffer time for the operator to change the forward direction of the floor scrubber, thereby avoiding a rigid impact between the floor scrubber assembly 2 and the obstacle. After passing the obstacle, the floor scrubber assembly 2 automatically unfolds to its original position under the reaction force of the first elastic component 5, thereby reducing the damage caused by the rigid collision between the floor scrubber assembly 2 and the obstacle and extending the service life of the floor scrubber assembly 2.

[0071] When the floor scrubber is moving straight, the water retaining member 25 swings to the rear side of the brush disc 22 under the action of friction, and the sewage is introduced into the treatment range of the water suction rake; at the same time, the second elastic member 26 is deformed. When the floor scrubber is turning, the water retaining member 25 swings to the outside of the brush disc 22 under the action of friction, and the sewage is introduced into the treatment range of the water suction rake. When the water retaining member 25 is not in contact with the ground, the water retaining member 25 is reset to the outside of the brush disc 22 under the reaction force of the second elastic member 26.

[0072] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A side scrubbing brush with expandable cleaning width, characterized in that: include: body; A support member (1), one end of which is fixedly connected to the fuselage and is located at the right front end of the fuselage; A floor scrubbing assembly (2), the floor scrubbing assembly (2) being installed in the machine body; A swing assembly (3), one end of which is rotatably connected to the support member (1) and the other end of which is hinged to the floor scrubbing assembly (2); A driving assembly (4), one end of which is hinged to the support member (1), and the other end of which is hinged to the swing assembly (3), and the driving assembly (4) is used to drive the swing assembly (3) to rotate and swing relative to the fuselage.

2. The side scrubbing brush with expandable cleaning width according to claim 1, characterized in that: The lower hem assembly (3) comprises: A linkage component (31), wherein the linkage component (31) is rotatably mounted on the support member (1), and the output end of the drive assembly (4) is hinged to one end of the linkage component (31); A vertical component (32), wherein the vertical component (32) is vertically mounted on the support component (1), and the vertical component (32) is rotatably connected to the support component (1); One end of the vertical component (32) is connected to the linkage component (31); A swing component (33), wherein one end of the swing component (33) is hinged to the vertical component (32), and the other end is hinged to the floor scrubbing component (2); A lifting component (34), one end of the lifting component (34) is connected to the linkage component (31), and the other end is connected to the floor scrubbing component (2); the lifting component (34) is flexible.

3. The side scrubbing brush with expandable cleaning width according to claim 2, characterized in that: The driving assembly (4) comprises an electric push rod, one end of which is hinged to the support member (1), and the other end of which is hinged to the linkage member (31).

4. The side scrubbing brush with expandable cleaning width according to claim 2, characterized in that: The linkage component (31) and the vertical component (32) are connected via a first elastic component (5); one end of the first elastic component (5) is connected to the linkage component (31), and the other end is connected to the vertical component (32); the first elastic component (5) is elastic.

5. The side scrubbing brush with expandable cleaning width according to claim 2, characterized in that: The floor scrubbing assembly (2) comprises: A bracket (21), one end of the swing component (33) is hinged to the end surface of the bracket (21), and one end of the lifting component (34) is connected to the end surface of the bracket (21); A brush plate (22), wherein the brush plate (22) is rotatably mounted on the bracket (21); A brush disc (22) driving component is fixedly mounted on the bracket (21), the brush disc (22) driving component is connected to the brush disc (22), and the brush disc (22) driving component is used to drive the brush disc (22) to rotate relative to the bracket (21).

6. The side scrubbing brush with expandable cleaning width according to claim 5, characterized in that: The floor scrubbing assembly (2) further comprises: A swing frame (24), the swing frame (24) is rotatably mounted on the bracket (21); A water-blocking component (25), one end of which is plugged into the swing frame (24) and the other end of which is in contact with the ground; the water-blocking component (25) is elastic; A second elastic component (26), one end of the second elastic component (26) is connected to the swing frame (24), and the other end is connected to the bracket (21); the second elastic component (26) is elastic.

7. The side scrubbing brush with expandable cleaning width according to claim 6, characterized in that: The swing component (33) comprises a parallelogram connecting rod, one end of which is hinged to the vertical component (32) and the other end of which is hinged to the bracket (21).

8. The side scrubbing brush with expandable cleaning width according to claim 7, characterized in that: A gas spring (6) is arranged on the vertical component (32), one end of the gas spring (6) is hinged to the vertical component (32), and the other end is hinged to the middle part of the parallelogram connecting rod.

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