Cleaning device capable of automatically adjusting cleaning work pressure

Abstract

The utility model relates to the technical field of scrubber, in particular to a cleaning device capable of automatically adjusting cleaning work pressure, which comprises a disc brush, a mounting plate, a power part, a lifting assembly, a concave pressure spring, a sliding spacer bush and a frame main body, the sliding spacer bush is assembled on the frame main body, and the sliding spacer bush is in sliding connection with the lifting assembly; one end of the concave compression spring is connected with the lifting assembly, the other end of the concave compression spring is connected with the frame body, the output end of the lifting assembly is assembled with the mounting plate, the disc brush is arranged on the bottom face of the mounting plate, the power piece is arranged on the top face of the mounting plate, and the output end of the power piece is assembled with the disc brush. The utility model provides a cleaning device capable of automatically adjusting cleaning working pressure. The problem that a main brush jumps due to the fact that a brush hair contact point of the main brush is uneven with the ground can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of floor scrubbers, and in particular to a cleaning device capable of automatically adjusting cleaning working pressure. Background Art

[0002] As an important component of the floor scrubber, the main brush works by installing a disc brush on the output shaft of a servo motor. The motor drives the brush to rotate, thereby cleaning the floor.

[0003] In the prior art, in the process of cleaning the floor using the main brush of a floor scrubber, there are several actions / functions that need to be implemented. The first is the overall lifting action / mechanism of the main brush, and the second is the pressurization function of the brush during the cleaning process.

[0004] At present, the poor design of the main brush pressurization mechanism will lead to inconsistent pressure at each point of the disc brush. After the main brush motor is turned on, the main brush will jump, affecting the floor cleaning effect. In addition, the poor pressurization capacity will limit the floor cleaning scenes of the floor scrubber, and it will be helpless in the face of scenes such as stubborn stains and rough floors. The selection of pressurized parts (such as compression springs) is also critical. The use of springs with poor fatigue resistance or low strength will cause the elastic force of the compression spring to weaken after a period of use, thereby affecting the main brush pressurization effect. Therefore, the pressurization function of the main brush part is very important. The floor scrubbers on the market will add a weighted iron design to the main brush disc. This design does not have an electronically controlled gear adjustment, and it is troublesome to replace the weighted iron. Summary of the invention

[0005] In order to solve the problem of main brush jumping caused by the uneven contact point between the bristles of the main brush and the ground, the present application provides a cleaning device that automatically adjusts the cleaning working pressure.

[0006] The present application provides a cleaning device for automatically adjusting the cleaning working pressure, which adopts the following technical solution:

[0007] A cleaning device that automatically adjusts the cleaning working pressure, comprises a disc brush, a mounting plate, a power member, a lifting assembly, a concave compression spring, a sliding spacer and a frame body, wherein the sliding spacer is assembled on the frame body, and the sliding spacer is slidably connected to the lifting assembly, one end of the concave compression spring is connected to the lifting assembly, and the other end is connected to the frame body, the output end of the lifting assembly is assembled with the mounting plate, the disc brush is arranged on the bottom surface of the mounting plate, the power member is arranged on the top surface of the mounting plate, and the output end of the power member is assembled with the disc brush.

[0008] By adopting the above technical scheme, under the action of the power part, the disc brush can be driven to rotate, so that the working floor can be cleaned. Under the action of the lifting component, the mounting plate and the disc brush arranged on the ground of the mounting plate can be lifted. At the same time, the lifting component and the sliding spacer are slidably connected to ensure the movement trajectory of the lifting component and improve the stability of the movement. Compared with the prior art, the present application can improve the compact structure effect of the cleaning device of the floor scrubber, and realize a stable main brush lifting and main brush pressurizing mechanism in the space above the main brush. The mechanism is simple and practical, and solves the problem of main brush jumping caused by the uneven contact point of the main brush bristles with the ground. The lifting electric push rod and the concave compression spring combination realize the function of multi-stage pressurization of the main brush. Moreover, the concave compression spring has a nonlinear relationship between pressure and compression range. The larger the pre-compression amount, the greater the increase in pressure for the same compression amount. Therefore, the stroke requirement of the lifting component can be reduced.

[0009] Preferably, the lifting assembly includes a sliding plate and a lifting push rod, the lifting push rod is fixed on a side of the sliding plate away from the frame body, the sliding plate is penetrated by a sliding groove, the sliding spacer passes through the sliding groove, and the sliding spacer is in sliding connection with the sliding groove.

[0010] By adopting the above technical solution, the lifting push rod acts as a power source to drive the mounting plate to lift up or lower down, so that the sliding plate can slide up and down, and the sliding spacer provides guidance and support, which helps to improve the stability and directionality of the lifting assembly in the process of lifting the mounting plate.

[0011] Preferably, a flange ear is provided on the top surface of the mounting plate, a first connecting shaft and a second connecting shaft are fixed to the side of the flange ear, a first lifting arm and a second lifting arm are provided between the flange ear and the frame body, one end of the first lifting arm is assembled with the first connecting shaft, and the other end is assembled with the frame body, one end of the second lifting arm is assembled with the second connecting shaft, and the other end is assembled with the frame body, forming a parallel four-bar linkage structure.

[0012] By adopting the above technical solution, the first lifting arm, the second lifting arm, the frame body and the flange ear together form a parallel four-bar structure, so that when the lifting push rod lifts the disc brush, the conversion between linear motion and rotational motion can be achieved, and at the same time, a larger load force can be carried, which helps to meet work requirements.

[0013] Preferably, the first lifting arm and the second lifting arm are arranged with equal length.

[0014] By adopting the above technical solution, the first lifting arm and the second lifting arm are set to be of equal length, so that the parallel four-bar structure has symmetry, the force distribution between each side is uniform, and the structure is more stable.

[0015] Preferably, there are two flange ears, the two flange ears are fixed side by side on the top surface of the mounting plate, a suspension rod is arranged between the two flange ears, and the output end of the lifting push rod is assembled with the suspension rod.

[0016] By adopting the above technical solution, with the cooperation of the flange ear and the suspension rod, and the lifting push rod as a power source, the mounting plate and the disc brush assembled on the mounting plate can be easily lifted up to realize the lifting function of the disc brush, thereby effectively avoiding obstacles.

[0017] Preferably, the power component is a main brush motor.

[0018] By adopting the above technical solution, the main brush motor has the characteristics of high efficiency, low noise and flexible control, making the floor scrubber more efficient, convenient and reliable in the cleaning process.

[0019] Preferably, a reinforcement plate is fixed to the top surface of the mounting plate, and the two flange ears are fixed to the top surface of the reinforcement plate.

[0020] By adopting the above technical solution and setting the reinforcement plate, the contact area between the flange ear and the mounting plate can be further increased. At the same time, the strength of the overall structure can be further increased, which plays a role in increasing rigidity and stability and reducing deformation and instability of the structure.

[0021] Preferably, there are two disc brushes, a gap is left between the two disc brushes, and the two disc brushes are distributed side by side on the bottom surface of the mounting plate.

[0022] By adopting the above technical solution, two disc brushes are provided, which can increase the cleaning area and thus improve the cleaning efficiency. A gap is left between the two disc brushes to avoid jamming or jamming of materials, thereby ensuring the smoothness of the floor scrubber during cleaning.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Compared with the prior art, the present application can improve the compactness of the cleaning device of the floor scrubber, realize a stable main brush lifting and main brush pressurizing mechanism in the space above the main brush, and the mechanism is simple and practical, which solves the main brush jumping problem caused by the uneven contact point between the main brush bristles and the ground. The lifting electric push rod and the concave compression spring combination realize the multi-stage pressurization function of the main brush, and the concave compression spring has a nonlinear relationship between pressure and compression range. The greater the pre-compression amount, the greater the pressure increase for the same compression amount, so the stroke requirement of the lifting component can be reduced;

[0025] 2. The first lifting arm, the second lifting arm, the frame body and the flange ear together form a parallel four-link structure, which can realize the conversion between linear motion and rotational motion when the lifting push rod lifts the disc brush, and can also carry a larger load force, which helps to meet work requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] Figure 2 yes Figure 1 Bottom view of .

[0028] Explanation of the reference numerals in the accompanying drawings: 1. disc brush; 2. mounting plate; 21. flange ear; 22. first connecting shaft; 23. second connecting shaft; 24. first lifting arm; 25. second lifting arm; 26. suspension rod; 27. reinforcement plate; 3. power part; 41. sliding plate; 411. sliding groove; 42. lifting push rod; 5. concave compression spring; 6. sliding spacer; 7. frame body. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-2 This application is described in further detail.

[0030] The embodiment of the present application discloses a cleaning device which automatically adjusts the cleaning working pressure.

[0031] Reference Figure 1 and Figure 2 A cleaning device that automatically adjusts the cleaning working pressure includes a disc brush 1, a mounting plate 2, a power part 3, a lifting assembly, a concave compression spring 5, a sliding spacer 6 and a frame body 7, wherein there are two disc brushes 1, a gap is left between the two disc brushes 1, the two disc brushes 1 are distributed side by side on the bottom surface of the mounting plate 2, and the disc brush 1 is rotatably connected to the mounting plate 2. The present application can increase the cleaning area and thus improve the cleaning efficiency by providing two disc brushes 1. A gap is left between the two disc brushes 1 to avoid the phenomenon of jamming or material jamming, and can ensure the smoothness of the floor scrubber during cleaning.

[0032] A reinforcement plate 27 and a flange ear 21 are fixed to the top surface of the mounting plate 2, wherein there is at least one flange ear 21. Two flange ears 21 are shown in the present application, so that the two flange ears 21 are fixed to the top surface of the reinforcement plate 27. The flange ear 21 and the reinforcement plate 27 can be fixed by welding, so that there is good connection stability between the two. By setting the reinforcement plate 27, the present application can further increase the contact area between the flange ear 21 and the mounting plate 2, and at the same time, further increase the strength of the overall structure, play a role in increasing rigidity and stability, and reduce deformation and instability of the structure.

[0033] Reference Figure 1 and Figure 2 The frame body 7 is arranged on one side of the mounting plate 2, and the first connecting shaft 22 and the second connecting shaft 23 are fixed to the side of the flange ear 21. The first lifting arm 24 and the second lifting arm 25 are arranged between the flange ear 21 and the frame body 7, so that the first lifting arm 24 and the second lifting arm 25 are arranged with the same length, one end of the first lifting arm 24 is assembled with the first connecting shaft 22, and the other end is assembled with the frame body 7, one end of the second lifting arm 25 is assembled with the second connecting shaft 23, and the other end is assembled with the frame body 7, forming a parallel four-bar structure.

[0034] In the present application, the first lifting arm 24, the second lifting arm 25, the frame body 7, and the flange ear 21 together constitute a parallel four-bar linkage structure, so that when the lifting push rod 42 lifts the disc brush 1, the conversion between linear motion and rotational motion can be achieved, and at the same time, a larger load force can be carried, which helps to meet work requirements. In addition, the first lifting arm 24 and the second lifting arm 25 are set to be of equal length, so that the parallel four-bar linkage structure has symmetry, the force distribution between each edge is uniform, and the structure is more stable.

[0035] Reference Figure 1 and Figure 2 A suspension rod 26 is arranged between the two flange ears 21, a sliding spacer 6 is assembled on the frame body 7, and the sliding spacer 6 is slidably connected with the lifting assembly, so that one end of the concave compression spring 5 is connected to the lifting assembly and the other end is connected to the frame body 7, the output end of the lifting assembly is assembled with the suspension rod 26 of the mounting plate 2, the power member 3 is arranged on the top surface of the mounting plate 2, the power member 3 is the main brush motor, so that it has the advantages of high efficiency, low noise and flexible control, so that the floor scrubber is more efficient, convenient and reliable in the cleaning process, and the output end of the power member 3 is assembled with the disc brush 1.

[0036] More specifically, the lifting assembly includes a sliding plate 41 and a lifting push rod 42. The lifting push rod 42 is fixed to the side of the sliding plate 41 away from the frame body 7. The sliding plate 41 is penetrated by a sliding groove 411. The sliding spacer 6 passes through the sliding groove 411, and the sliding spacer 6 is slidably connected with the sliding groove 411.

[0037] When the lifting push rod 42 acts as a power source to drive the mounting plate 2 to lift up or lower down, the sliding plate 41 can slide up and down, and the sliding spacer 6 provides guidance and support, which helps to improve the stability and directionality of the lifting component in the process of lifting the mounting plate 2.

[0038] When in use, the disc brush 1 of the floor scrubber has the following states:

[0039] The first one is that the disc brush 1 is lifted: the disc brush 1 is lifted so that the bristles at the bottom are off the ground. At this time, the lifting push rod 42 is in the shortest state, the sliding plate 41 is hung on the sliding spacer sleeve 6, the sliding spacer sleeve 6 provides support for the sliding plate 41, and the concave compression spring 5 is in a pre-compressed state.

[0040] The second type is that the disc brush 1 is turned on and drives the first level of pressure: the lifting push rod 42 extends the movable rod, and the parallel four-bar structure composed of the first lifting arm 24 and the second lifting arm 25 is used to drive the mounting plate 2 and the disc brush 1 to descend in parallel. When the disc brush 1 touches the ground and the current of the power part 3 reaches the first level setting value of the working pressure, the lifting push rod 42 extends and stops; at this time, under the reaction force formed by the disc brush 1 and the ground support, the sliding plate 41 slides on the sliding spacer sleeve 6, the lifting push rod 42 and the sliding plate 41 are pushed up, and the sliding plate 41 is no longer hung on the sliding spacer sleeve 6, and the concave compression spring 5 acts on the main brush to form working pressure.

[0041] The third type is to drive the second and third gear pressures: on the basis of the first gear pressure state, the lifting push rod 42 continues to extend the movable rod downward, the length is set in advance, the lifting push rod 42 and the sliding plate 41 continue to be pushed up, the concave compression spring 5 continues to be compressed, the pressure of the concave compression spring 5 increases, and the main brush working pressure reaches the second gear.

[0042] In the present application, under the action of the power part 3, the disc brush 1 can be driven to rotate, so that the working floor can be cleaned. Under the action of the lifting component, the mounting plate 2 and the disc brush 1 set on the ground of the mounting plate 2 can be lifted. At the same time, the lifting component is slidably connected with the sliding spacer sleeve 6 to ensure the movement trajectory of the lifting component and improve the stability of the movement. Compared with the prior art, the present application can improve the compact structure of the cleaning device of the floor scrubber, and realize a stable main brush lifting and main brush pressurizing mechanism in the space above the main brush. The mechanism is simple and practical, and solves the problem of main brush jumping caused by the uneven contact point of the main brush bristles with the ground. The combination of the lifting electric push rod and the concave compression spring 5 realizes the function of multi-stage pressurization of the main brush, and the concave compression spring 5 has a nonlinear relationship between pressure and compression range. The larger the pre-compression amount, the greater the increase in pressure for the same compression amount, thereby reducing the stroke requirement of the lifting component.

[0043] The above are all preferred embodiments of the present application. The embodiments are only explanations of the present application and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cleaning device that automatically adjusts the cleaning working pressure, characterized in that: The invention comprises a disc brush (1), a mounting plate (2), a power member (3), a lifting assembly, a concave compression spring (5), a sliding spacer (6) and a frame body (7), wherein the sliding spacer (6) is mounted on the frame body (7), and the sliding spacer (6) is in sliding connection with the lifting assembly, one end of the concave compression spring (5) is connected to the lifting assembly, and the other end is connected to the frame body (7), the output end of the lifting assembly is mounted on the mounting plate (2), the disc brush (1) is arranged on the bottom surface of the mounting plate (2), the power member (3) is arranged on the top surface of the mounting plate (2), and the output end of the power member (3) is mounted on the disc brush (1).

2. A cleaning device for automatically adjusting cleaning working pressure according to claim 1, characterized in that: The lifting assembly comprises a sliding plate (41) and a lifting push rod (42), wherein the lifting push rod (42) is fixed to a side of the sliding plate (41) away from the frame body (7), the sliding plate (41) is provided with a sliding groove (411), the sliding spacer (6) passes through the sliding groove (411), and the sliding spacer (6) is in sliding contact with the sliding groove (411).

3. A cleaning device for automatically adjusting cleaning working pressure according to claim 2, characterized in that: A flange ear (21) is provided on the top surface of the mounting plate (2), a first connecting shaft (22) and a second connecting shaft (23) are fixed to the side surface of the flange ear (21), a first lifting arm (24) and a second lifting arm (25) are provided between the flange ear (21) and the frame body (7), one end of the first lifting arm (24) is assembled with the first connecting shaft (22), and the other end is assembled with the frame body (7), one end of the second lifting arm (25) is assembled with the second connecting shaft (23), and the other end is assembled with the frame body (7), so as to form a parallel four-link structure.

4. A cleaning device for automatically adjusting cleaning working pressure according to claim 3, characterized in that: The first lifting arm (24) and the second lifting arm (25) are arranged with the same length.

5. The cleaning device for automatically adjusting the cleaning working pressure according to claim 3, characterized in that: There are two flange ears (21), and the two flange ears (21) are fixed side by side on the top surface of the mounting plate (2). A suspension rod (26) is arranged between the two flange ears (21), and the output end of the lifting push rod (42) is assembled with the suspension rod (26).

6. The cleaning device for automatically adjusting the cleaning working pressure according to claim 1, characterized in that: The power component (3) is a main brush motor.

7. A cleaning device for automatically adjusting cleaning working pressure according to claim 5, characterized in that: A reinforcing plate (27) is fixed to the top surface of the mounting plate (2), and the two flange ears (21) are fixed to the top surface of the reinforcing plate (27).

8. A cleaning device for automatically adjusting cleaning working pressure according to any one of claims 1 to 7, characterized in that: There are two disc brushes (1), a gap is left between the two disc brushes (1), and the two disc brushes (1) are distributed side by side on the bottom surface of the mounting plate (2).

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