Brush disc lifting mechanism for scrubber

Abstract

The utility model discloses a scrubber brush disc elevating mechanism, including fixed seat, first elevating plate and mounting seat, the fixed seat is upward with scrubber fixed connection, first elevating plate is articulated with fixed seat at the middle section position, first elevating plate far away from the first end of brush disc is equipped with pedal, and the mounting seat is equipped with the mounting seat. A limiting plate is further arranged at the end, close to the pedal, of the fixing base, the limiting plate can abut against the first lifting plate downwards to limit the swing amplitude of the first end of the first lifting plate, the second end of the first lifting plate is hinged to a mounting base fixedly arranged on the brush disc, and the fixing base is elastically connected with the mounting base above the first lifting plate through a connecting plate; and the position state of the brush disc is kept. The brush disc lifting device is simple in structure, stable in brush disc lifting process and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a brush plate lifting mechanism for a floor scrubber. Background Art

[0002] Floor scrubbers, also known as floor cleaning machines, floor scrubbers and dryers or floor washing vehicles, are used for cleaning hard floors. At the same time, they can suck up sewage through a suction shovel and take the sewage away from the site. They are suitable for places with large hard floors, such as stations, docks, airports, workshops, warehouses, schools, hospitals, restaurants, and stores.

[0003] A floor scrubber generally consists of two major components: a chassis and a water tank assembly. The chassis contains a brush disc with several bristles on it. When the cleaning operation is in progress, the brush disc drops so that the bristles contact the ground for cleaning. When the cleaning is completed, the brush disc is lifted to facilitate the movement of the floor scrubber.

[0004] In the prior art, the brush plate lifting structure is complex, or the brush plate has poor stability during the lifting process, or requires additional auxiliary drive to achieve lifting. Therefore, there is an urgent need for a lifting mechanism with a simple structure that can ensure stable lifting of the brush plate. Utility Model Content

[0005] The utility model discloses a brush plate lifting mechanism for washing and receiving, which solves the technical problems of the prior art in that the brush plate lifting structure is complex and the brush plate has poor stability during the lifting process. The utility model has the technical advantages of simple structure, stable brush plate lifting process and convenient operation. The technical solution adopted is as follows:

[0006] A brush plate lifting mechanism for a floor scrubber comprises a fixed seat, a first lifting plate and a mounting seat, the fixed seat being fixedly connected to the floor scrubber upward, the first lifting plate being hinged to the fixed seat at a middle position, a pedal being provided at a first end of the first lifting plate away from the brush plate, and a limit plate being further provided near the pedal end of the fixed seat, the limit plate being able to abut downward against the first lifting plate to limit the swing amplitude of the first end of the first lifting plate, the second end of the first lifting plate being hinged to the mounting seat fixed on the brush plate, and the fixed seat being elastically connected to the mounting seat above the first lifting plate by a connecting plate to maintain the position of the brush plate.

[0007] Based on the above technical solution, the end of the connecting plate extends above the brush plate, and the mounting seat includes a guide plate, which extends upward, and the end of the connecting plate is connected to the upper part of the guide plate through a tension spring.

[0008] Based on the above technical solution, the end of the connecting plate is vertically fixed with a positioning bolt, and the end of the connecting plate is connected to the upper part of the guide plate through the positioning bolt, and the guide plate includes a first arc surface that is always laterally abutted against the positioning bolt to limit the position of the brush plate.

[0009] On the basis of the above technical solution, the first arc surface is designed so that when the pedal is stepped on to drive the brush plate to move up and down, the positioning bolt abuts against the side of the first arc surface to keep the brush plate in a horizontal state.

[0010] Based on the above technical solution, the first arc surface extends to form a second arc surface, and the second arc surface can be in upward side contact with the positioning bolt. When the pedal is stepped on to raise the second end of the first lifting plate to the highest limit, the second arc surface is in upward side contact with the positioning bolt to limit the swing amplitude of the second end of the first lifting plate, and when the second arc surface is in upward side contact with the positioning bolt, the limit plate is in downward contact with the first lifting plate.

[0011] Based on the above technical solution, a guide hole extending in an arc is provided on the guide plate, and a guide column is vertically fixed at the corresponding position of the first lifting plate. The guide column can pass through the guide hole and cooperate with the guide hole gap, and the guide hole is designed so that when the positioning bolt slides along the first arc surface, the guide column displaces along the axis of the guide hole.

[0012] On the basis of the above technical solution, a pressing assembly is also included, and the pressing assembly is designed to provide resistance when the guide plate and the first lifting plate are relatively displaced.

[0013] Based on the above technical solution, the clamping assembly includes a screw, a baffle, a compression spring and a nut. The screw passes through the first lifting plate and the guide plate and is gap-fitted with the first lifting plate and the guide plate. The nut is threadedly connected to the end of the screw. The compression spring is sleeved on the outside of the screw and presses the first lifting plate and the guide plate through the baffle to provide resistance when the first lifting plate and the guide plate are relatively displaced.

[0014] Based on the above technical solution, it also includes a second lifting plate, which is symmetrically arranged on both sides of the brush plate with the first lifting plate, and the two ends of the second lifting plate are respectively hinged to the fixing seat and the mounting seat.

[0015] Based on the above technical solution, the fixing seat, the first lifting plate, the second lifting plate and the mounting seat are provided with an anti-corrosion coating.

[0016] Beneficial effects

[0017] The utility model has a reasonable structure. The first lifting plate is hinged to the fixed seat at the middle position and is hinged to the mounting seat at the second end. The end of the connecting plate on the fixed seat is elastically connected to the upper part of the mounting seat. In this way, when the brush plate is driven to rise and fall by stepping on the pedal, the brush plate can be kept in a state on the one hand, and the impact force generated during the lifting can be buffered on the other hand, thereby avoiding large vibrations of the brush plate. The mounting seat includes an upwardly extending guide plate, the end of the connecting plate is connected to the upper part of the guide plate by a tension spring, and the guide plate includes a first arc surface and a second arc surface that are laterally abutted against the positioning bolt. The first arc surface always abuts against the positioning bolt during the brush plate lifting process to stabilize the brush plate state and can help the brush plate always remain in a horizontal state to ensure smooth cleaning. The second arc surface can limit the swing amplitude of the second end of the first lifting plate, which is conducive to improving the stability of use. In addition, a guide hole is provided on the guide plate to guide the lifting action of the brush plate, which is conducive to further stabilizing the lifting action of the brush plate and can also limit the lifting stroke of the brush plate.

[0018] The present invention also includes a pressing assembly to provide resistance when the guide plate and the first lifting plate are relatively displaced, so that the user can feel the resistance when stepping on the pedal, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only one embodiment of the present invention. For those skilled in the art, other implementation drawings can be derived from the provided drawings without inventive effort.

[0020] Figure 1 : The three-dimensional structure of the utility model is shown Figure 1 ;

[0021] Figure 2 : The three-dimensional structure of the utility model is shown Figure 2 ;

[0022] Figure 3 : The three-dimensional structure of the utility model is shown Figure 3 ;

[0023] Figure 4 : Schematic diagram of the three-dimensional structure of the guide plate; DETAILED DESCRIPTION

[0024] The following description and accompanying drawings sufficiently illustrate the specific embodiments herein to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in or substituted for portions and features of other embodiments. The scope of the embodiments herein includes the entire scope of the claims, including all available equivalents thereof. Herein, the terms "first," "second," and the like are used solely to distinguish one element from another and do not require or imply any actual relationship or order between these elements. In practice, the first element can also be referred to as the second element, and vice versa. Furthermore, the terms "comprise," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a structure, device, or apparatus comprising a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such structure, device, or apparatus. Without further limitation, an element defined by the phrase "comprising a..." does not preclude the presence of other identical elements in the structure, device, or apparatus comprising the element. The various embodiments herein are described in a progressive manner, with each embodiment focusing on its differences from the other embodiments. Similar or identical parts between the various embodiments can be referenced to each other.

[0025] The terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used herein to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are intended only to facilitate the description of this document and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention. In the description herein, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, they can be mechanical or electrical connections, or they can be internal connections between two elements, they can be directly connected, or they can be indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0026] As used herein, unless otherwise specified, the term "plurality" means two or more.

[0027] In this document, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0028] In this article, the term "and / or" is used to describe the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0029] like Figures 1 to 4The brush plate lifting mechanism for a floor scrubber shown includes a fixing base 1 , a first lifting plate 2 and a mounting base 3 .

[0030] like Figures 1-3 As shown, the fixing base 1 is arranged below the main structure of the floor scrubber. The fixing base 1 is fixedly connected to the floor scrubber upward. The fixing base 1 is a component with a C-shaped cross section and an opening facing upward, and includes a top plate and two side plates.

[0031] like Figure 3 As shown, the first lifting plate 2 is hinged to the fixing base 1 at the middle position. Specifically, a bolt assembly includes a first screw and a first nut. The first screw is fixed to a side plate of the fixing base 1. The first screw passes through the middle position of the first lifting plate 2 and is clearance-matched with the first lifting plate 2. The first lifting plate 2 can slide axially along the first screw.

[0032] The first end of the first lifting plate 2 away from the brush plate 100 is provided with a pedal 4, and the pedal 4 is provided with anti-slip grooves to facilitate the operator to step on the operation. Figure 2 As shown, a limit plate 5 is fixedly provided on the fixing seat 1 near the end of the pedal 4. When the pedal 4 is stepped on and the first lifting plate 2 is driven laterally to move below the limit plate 5, the limit plate 5 can abut against the first lifting plate 2 downward to limit the swing amplitude of the first end of the first lifting plate 2.

[0033] The second end of the first lifting plate 2 is hinged to the mounting base 3 fixed on the brush plate 100. Specifically, the mounting base 3 includes a guide plate 7. In this embodiment, the guide plate 7 is L-shaped and includes a horizontal plate and a vertical plate. The horizontal plate is fixed downward and the vertical plate extends upward.

[0034] The fixing seat 1 is elastically connected to the mounting seat 3 above the first lifting plate 2 through the connecting plate 6 to maintain the position of the brush plate 100. Specifically, the head end of the connecting plate 6 is fixed to the fixing seat 1, and the end of the connecting plate 6 extends above the brush plate 100. Figure 1 and 2 As shown, a positioning bolt 9 is vertically fixed to the end of the connecting plate 6, and the positioning bolt 9 is connected to the upper part of the guide plate 7 through a tension spring 8 to keep the brush plate 100 in a horizontal state.

[0035] like Figure 4 As shown, the end surface of the guide plate 7 facing the side wall of the positioning bolt 9 includes a first arc surface 71 and a second arc surface 72. The first arc surface 71 extends to form the second arc surface 72, and the first arc 71 and the second arc surface 72 have a smooth transition. The first arc surface 71 is always in side contact with the positioning bolt 9 to guide the lifting and lowering displacement of the brush plate 100, and the curvature of the first arc surface 71 is set to keep the brush plate 100 in a horizontal state during the lifting process. Specifically, when the pedal 4 is stepped on to drive the brush plate 100 to rise and fall, the positioning bolt 9 is always in side contact with the first arc surface 71 to keep the brush plate 100 in a horizontal state.

[0036] The second arc surface 72 can abut against the positioning bolt 9 upward. When the pedal 4 is stepped on to raise the second end of the first lifting plate 2 to the highest limit, the second arc surface 72 abuts against the positioning bolt 9 upward to limit the swing amplitude of the second end of the first lifting plate 2. When the second arc surface 72 abuts against the positioning bolt 9 upward, the limiting plate 5 abuts against the first lifting plate 2 downward to better limit the position of the brush plate.

[0037] In addition, a guide hole 73 extending in an arc is provided on the guide plate 7, and a guide column is vertically fixed at the corresponding position of the first lifting plate 2. The guide column can pass through the guide hole 73 and fit with the guide hole 73. The guide hole 73 is designed so that when the positioning bolt 9 slides along the first arc surface 71, the guide column is displaced along the axis of the guide hole 73. In addition, the length of the guide hole 73 along the arc is adapted to the stroke of the up and down displacement of the brush plate 100.

[0038] The device further includes a clamping assembly 10, which is designed to provide resistance to the relative displacement of the guide plate 7 and the first lifting plate 2. Specifically, the clamping assembly 10 includes a screw, a baffle, a compression spring, and a nut. In this embodiment, the screw is a guide post that passes through the first lifting plate 2 and the guide plate 7 and has a clearance fit between them. The nut is threadedly connected to the end of the guide post. The compression spring is sleeved outside the guide post and, through the baffle, presses the first lifting plate 2 and the guide plate 7 together to provide resistance to the relative displacement of the first lifting plate 2 and the guide plate 7.

[0039] like Figure 3 As shown, it also includes a second lifting plate 11. The second lifting plate 11 and the first lifting plate 2 are symmetrically arranged on both sides of the brush plate 100, and the two ends of the second lifting plate 11 are respectively hinged to the fixed base 1 and the mounting base 3, so that the first lifting plate 2 and the second lifting plate 11 move synchronously to jointly drive the brush plate 100 to rise and fall; in addition, in order to further improve the service life, the fixed base 1, the first lifting plate 2, the second lifting plate 11 and the mounting base 3 are provided with an anti-corrosion coating.

[0040] The present invention is described above by way of examples, but the present invention is not limited to the above specific embodiments. Any changes or modifications based on the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A brush plate lifting mechanism for a floor scrubber, characterized in that: The invention comprises a fixed seat (1), a first lifting plate (2) and a mounting seat (3), wherein the fixed seat (1) is fixedly connected to the floor scrubber upwards, the first lifting plate (2) is hinged to the fixed seat (1) at a middle position, a pedal (4) is provided at the first end of the first lifting plate (2) away from the brush plate (100), and a limiting plate (5) is further provided at the end of the fixed seat (1) close to the pedal (4), wherein the limiting plate (5) can abut against the first lifting plate (2) downwards to limit the swing amplitude of the first end of the first lifting plate (2), the second end of the first lifting plate (2) is hinged to the mounting seat (3) fixed on the brush plate (100), and the fixed seat (1) is elastically connected to the mounting seat (3) above the first lifting plate (2) through a connecting plate (6) to maintain the position state of the brush plate (100).

2. The brush plate lifting mechanism for a floor scrubber according to claim 1, characterized in that: The end of the connecting plate (6) extends above the brush plate (100), and the mounting seat (3) includes a guide plate (7). The guide plate (7) extends upward, and the end of the connecting plate (6) is connected to the upper part of the guide plate (7) through a tension spring (8).

3. The brush plate lifting mechanism for a floor scrubber according to claim 2, characterized in that: The end of the connecting plate (6) is vertically fixed with a positioning bolt (9), and the end of the connecting plate (6) is connected to the upper part of the guide plate (7) through the positioning bolt (9), and the guide plate (7) includes a first arc surface (71) that is always in lateral contact with the positioning bolt (9) to limit the position state of the brush plate (100).

4. The brush plate lifting mechanism for a floor scrubber according to claim 3, characterized in that: The first arc surface (71) is designed such that when the pedal (4) is stepped on to drive the brush plate (100) to rise and fall, the positioning bolt (9) abuts against the first arc surface (71) laterally, so that the brush plate (100) remains in a horizontal state.

5. The brush plate lifting mechanism for a floor scrubber according to claim 4, characterized in that: The first arc surface (71) extends to form a second arc surface (72), and the second arc surface (72) can abut against the positioning bolt (9) in an upward direction. When the pedal (4) is stepped on to raise the second end of the first lifting plate (2) to the highest limit, the second arc surface (72) abuts against the positioning bolt (9) in an upward direction to limit the swing amplitude of the second end of the first lifting plate (2). When the second arc surface (72) abuts against the positioning bolt (9) in an upward direction, the limiting plate (5) abuts against the first lifting plate (2) in a downward direction.

6. The brush plate lifting mechanism for a floor scrubber according to claim 5, characterized in that: The guide plate (7) is provided with a guide hole (73) extending in an arc line, and a guide column is vertically fixed at a corresponding position of the first lifting plate (2). The guide column can pass through the guide hole (73) and fit with the guide hole (73) in a clearance, and the guide hole (73) is designed so that when the positioning bolt (9) slides along the first arc surface (71), the guide column moves along the axis of the guide hole (73).

7. The brush plate lifting mechanism for a floor scrubber according to any one of claims 2 to 5, characterized in that: It also includes a pressing assembly (10), which is designed to provide resistance when the guide plate (7) and the first lifting plate (2) are relatively displaced.

8. The brush plate lifting mechanism for a floor scrubber according to claim 7, characterized in that: The pressing assembly (10) includes a screw, a baffle, a compression spring and a nut. The screw passes through the first lifting plate (2) and the guide plate (7) and is clearance-matched with the first lifting plate (2) and the guide plate (7). The nut is threadedly connected to the end of the screw. The compression spring is sleeved outside the screw and presses the first lifting plate (2) and the guide plate (7) through the baffle to provide resistance when the first lifting plate (2) and the guide plate (7) are relatively displaced.

9. The brush plate lifting mechanism for a floor scrubber according to claim 8, characterized in that: It also includes a second lifting plate (11), which is symmetrically arranged on both sides of the brush plate (100) with the first lifting plate (2), and the two ends of the second lifting plate (11) are hinged to the fixing seat (1) and the mounting seat (3) respectively.

10. The brush plate lifting mechanism for a floor scrubber according to claim 9, characterized in that: The fixing seat (1), the first lifting plate (2), the second lifting plate (11) and the mounting seat (3) are provided with an anti-corrosion coating.

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