High-stability scrubber

Abstract

The invention relates to the technical field of scrubbers, in particular to a high-stability scrubber which comprises a frame, a swing base plate is hinged to the tail of the frame through a pin shaft A, a water absorption raking module is arranged at the end, away from the frame, of the swing base plate, and a centripetal joint bearing is arranged in the middle of the swing base plate; a lifting sliding rod is arranged in the radial spherical plain bearing in a lifting mode, a limiting head is arranged at one end of the lifting sliding rod, the side wall of the lifting sliding rod is sleeved with a first spring, one end of the first spring is fixedly connected with the side wall of the lifting sliding rod, and the other end of the first spring abuts against the top face of the radial spherical plain bearing. The frame is provided with a swing assembly used for driving the lifting sliding rod to move. The floor scrubber has the effects of stabilizing the pressure of the water absorption scraper and improving the water absorption effect of the floor scrubber.

Description

Technical Field

[0001] The present application relates to the technical field of floor scrubbers, and in particular to a floor scrubber with high stability. Background Art

[0002] As a modern cleaning equipment, the performance of the squeegee, the core functional component of the floor scrubber, directly determines the floor cleaning effect and work efficiency of the equipment. There are still many technical defects in the design of the squeegee control mechanism of the floor scrubber products on the market that need to be solved, which seriously restricts the operating efficiency of the equipment and user experience.

[0003] First, in terms of lifting control, the existing technology mainly adopts two implementation methods: one is to adjust the vertical displacement of the squeegee through a manual operating mechanism (such as a mechanical handle or a cable device). Although this solution is simple in structure, for medium and large floor scrubbers, the operator needs to repeatedly apply a large force to perform lifting operations, which significantly increases the labor intensity and cannot achieve the integration of automated operation processes. The second method is to use an electric push rod drive, which has the advantage of automatic control, but there are problems such as a large drive mechanism and high manufacturing cost, and it is easy to increase mechanical wear under frequent start-stop conditions.

[0004] Regarding the working pressure control link, the current industry technology has multiple technical bottlenecks: (1) Solutions that rely solely on the squeegee's own weight to apply pressure have insufficient effective load, resulting in poor wiping sealing, especially when operating on smooth hard surfaces, which is prone to the formation of water film residue; (2) Although the improved solution of adding counterweight blocks can improve the pressure parameters, it will increase the weight of the whole machine by about 30%-50%, which not only increases the burden on the power system, but also causes high-frequency vibration of the squeegee due to inertia when operating on uneven surfaces, destroying the vacuum sealing interface; (3) Although the composite pressurization solution of the electric push rod and the elastic element can achieve dynamic pressure compensation, it has the inherent defects of complex control logic and spring fatigue characteristics affecting pressure stability. In addition, the pressure parameter adjustment requires professional tools and does not have the engineering practicality of rapid on-site adjustment.

[0005] In addition, in terms of three-dimensional posture adjustment, existing products generally have structural design defects. In order to achieve the best water absorption effect, the squeegee needs to have the functions of X / Y axis horizontal fine-tuning and Z axis tilt adjustment. However, most mainstream products currently use a multi-bolt positioning structure, and the adjustment process requires alternating tightening and loosening of multiple fasteners, which is cumbersome and time-consuming. More importantly, the traditional articulated structure is prone to matching gaps under long-term vibration conditions, resulting in instability of adjustment parameters, and frequent single-sided suction leakage or scraper strip wear during operation, which seriously affects the service life of the equipment.

[0006] The existence of the above technical defects not only significantly reduces the quality of cleaning operations, but also increases the equipment maintenance cost by about 40%, which seriously restricts the application and promotion of floor scrubber products in the high-end cleaning market. Therefore, it is urgent to develop a highly stable floor scrubber. Summary of the invention

[0007] In order to stabilize the pressure of the squeegee and improve the water absorption effect of the floor scrubber, the present application provides a floor scrubber with high stability.

[0008] The present application provides a highly stable floor scrubber, which adopts the following technical solution: A highly stable floor scrubber comprises a frame, wherein the rear portion of the frame is hingedly provided with a swing base plate via a pin A, a squeegee module is provided at one end of the swing base plate away from the frame, a radial spherical bearing is provided in the middle portion of the swing base plate, a lifting slide bar is provided in the radial spherical bearing for lifting and lowering, a limiting head is provided at one end of the lifting slide bar, a first spring is sleeved on the side wall of the lifting slide bar, one end of the first spring is fixedly connected to the side wall of the lifting slide bar, and the other end of the first spring abuts against the top surface of the radial spherical bearing, and the frame is provided with a swing component for driving the lifting slide bar to move.

[0009] By adopting the above technical solution, when the floor scrubber needs to absorb water, the lifting slide bar is first driven down through the swing assembly, and the lifting slide bar moves downward, and at the same time, the first spring is squeezed. The first spring drives the swing base plate to swing downward through the reaction force, and the swing base plate drives the squeegee module to swing downward. At this time, the squeegee module is pressed against the ground, and the working pressure of the squeegee module is implemented by the first spring and basically remains constant. It does not change with the changes in the ground, and it will not jump up and down or shake left and right when encountering bumpy ground, which is conducive to ensuring the water absorption effect.

[0010] Optionally, the swing assembly includes a lifting frame and a fisheye bearing, the lifting frame is rotatably arranged at the rear of the frame through a rotating shaft, one end of the lifting frame is hinged to one end of the fisheye bearing, the other end of the fisheye bearing is fixedly connected to the lifting slide rod, and the frame is provided with a driving member for driving the lifting frame to rotate.

[0011] By adopting the above technical solution, when the driving member drives the lifting frame to rotate clockwise, the lifting frame drives the lifting slide bar to rise through the fisheye bearing. Conversely, when the driving member drives the lifting frame to rotate counterclockwise, the lifting frame drives the lifting slide bar to descend through the fisheye bearing, which is beneficial to improve the stability of the lifting slide bar.

[0012] Optionally, the squeegee module includes a mounting plate and a squeegee, the mounting plate being hingedly arranged on one end of the swing base away from the frame through a pin shaft B, the squeegee being arranged on one end of the mounting plate away from the frame, and the mounting plate being provided with an adjustment component for adjusting the elevation angle of the squeegee.

[0013] By adopting the above technical solution, when the swing base plate swings downward, the swing base plate drives the water suction squeegee to swing downward toward the ground through the mounting plate; in addition, the elevation angle of the water suction squeegee can be adjusted by adjusting the component, so that the water suction squeegee can be further stably attached to the ground, which is ultimately beneficial to ensure the water absorption effect of the floor scrubber.

[0014] Optionally, the adjustment assembly includes an adjustment knob, a self-locking nut and a pre-stressed spring, one end of the adjustment knob passes through the swing base plate and the mounting plate in sequence, the self-locking nut is threadedly connected to one end of the adjustment knob, the pre-stressed spring is sleeved on the adjustment knob, one end of the pre-stressed spring abuts against the bottom surface of the swing base plate, and the other end of the pre-stressed spring abuts against the top surface of the mounting plate, and the mounting plate is also provided with a limit member for limiting the adjustment range.

[0015] By adopting the above technical solution, when it is necessary to adjust the elevation angle of the water-absorbing sub-squeegee, first turn the adjusting knob clockwise. Under the action of the self-locking nut, the mounting plate swings with the pin shaft B as the axis toward the direction close to the swing base plate, and the mounting plate squeezes the pre-stressed spring. Similarly, when the adjusting knob is turned counterclockwise, the pre-stressed spring releases its elastic force and drives the mounting plate to swing with the pin shaft B as the axis toward the direction away from the swing base plate, thereby finally achieving a small range adjustment of the elevation angle of the water-absorbing sub-squeegee. In addition, under the action of the pre-stressed spring, when the ground is bumpy, the vibration of the water-absorbing sub-squeegee is buffered by the pre-stressed spring, thereby increasing the service life of the water-absorbing sub-squeegee.

[0016] Optionally, the limiting member is a first limiting nut and a second limiting nut, the first limiting nut and the second limiting nut are both arranged between the mounting plate and the swing substrate, and the first limiting nut and the second limiting nut are both threadedly connected to the adjusting knob.

[0017] By adopting the above technical solution, when it is necessary to increase the elevation adjustment amplitude and the buffer amplitude of the water suction squeegee, the first limit nut and the second limit nut are respectively rotated and the two are brought closer to each other. Conversely, when it is necessary to reduce the elevation adjustment amplitude and the buffer amplitude of the water suction squeegee, the first limit nut and the second limit nut are respectively rotated and the two are moved away from each other.

[0018] Optionally, brackets are respectively provided on both sides of the mounting plate, universal wheels are provided at the bottom of the brackets, and the brackets are provided with regulating components for adjusting the height of the water-absorbing squeegee.

[0019] By adopting the above technical solution, with the auxiliary support of the universal wheel, the height of the left and right sides of the water-absorbing squeegee is ultimately adjusted through the regulating component to ensure that the water-absorbing squeegee is flat and close to the ground, thereby improving the water absorption effect of the water-absorbing squeegee.

[0020] Optionally, the adjustment component includes a first adjustment nut and a second adjustment nut, a screw is rotatably arranged on the top surface of the universal wheel, the screw passes through the bracket, the first adjustment nut and the second adjustment nut are respectively threadedly connected to the screw, and the first adjustment nut is placed on the top surface of the bracket, and the second adjustment nut is placed on the bottom surface of the bracket.

[0021] By adopting the above technical solution, when it is necessary to adjust the height of one side of the water-absorbing scraper, first loosen the first adjusting nut, and then turn upward to tighten the second adjusting nut. At this time, the second adjusting nut drives one side of the bracket to rise, and the bracket on one side then lifts one side of the water-absorbing scraper, which is beneficial to improve the stability of the height adjustment of both sides of the water-absorbing scraper.

[0022] Optionally, the bracket is closely attached to two sides of the swing base plate, and the bracket is provided with reinforcing ribs.

[0023] By adopting the above technical solution, the bracket is tightly fitted to both sides of the swing base, thereby reducing the shaking between the mounting plate and the swing base, that is, reducing the shaking of the water-absorbing sub-squeegee during operation, improving the stability of the water-absorbing sub-squeegee, and improving the overall strength of the bracket by reinforcing ribs.

[0024] Optionally, a locking rod is provided through the bottom surface of the water-absorbing sub-squeegee, one end of the locking rod also passes through the mounting plate, and one end of the locking rod is threadedly connected to a locking knob.

[0025] By adopting the above technical solution, when the water absorbent scraper needs to be installed, the water absorbent scraper is first attached to the bottom surface of the mounting plate, and then the locking rod is sequentially passed through the water absorbent scraper and the mounting plate, and then the locking knob is threadedly connected to the locking rod. At this time, the water absorbent scraper is fixed to the bottom surface of the mounting plate, which is beneficial to improve the detachability of the water absorbent scraper.

[0026] Optionally, a spirit level is symmetrically provided on the top surface of the water-absorbing spout.

[0027] By adopting the above technical solution, the leveling condition of the water-absorbing squeegee is detected by a spirit level, which is helpful to ensure that the water-absorbing squeegee is used flatly during operation.

[0028] In summary, this application includes the following beneficial technical effects: When the floor scrubber needs to absorb water, the lifting slide bar is first driven down through the swing assembly, and the lifting slide bar moves downward, and at the same time, the first spring is squeezed. The first spring drives the swing base plate to swing downward through the reaction force, and the swing base plate drives the squeegee module to swing downward. At this time, the squeegee module is pressed against the ground. The working pressure of the squeegee module is implemented by the first spring and basically remains constant. It does not change with the changes in the ground. It will not jump up and down or shake left and right when encountering bumpy ground, which is conducive to ensuring the water absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the frame of the present application; Figure 2 It is a partial structural schematic diagram of the rear part of the frame of the present application; Figure 3 is a side cross-sectional schematic diagram of the vehicle frame of the present application; Figure 4 It is a structural schematic diagram of the lifting slide bar of the present application; Figure 5 It is a structural schematic diagram of the radial spherical plain bearing of the present application; Figure 6 It is a schematic diagram of the structure of the regulating component of the present application; Figure 7 It is a structural schematic diagram of the universal wheel and the control component of the present application; Figure 8 It is a top view of the squeegee module of the present application.

[0030] Explanation of the reference numerals in the accompanying drawings: 1. Frame; 2. Swinging base plate; 3. Pin A; 4. Squeegee module; 5. Radial spherical bearing; 6. Lifting slide bar; 7. Limit head; 8. First spring; 9. Lifting frame; 10. Fisheye bearing; 11. Electric push rod; 12. Mounting plate; 13. Squeegee; 14. Pin B; 15. Adjustment knob; 16. Self-locking nut; 17. Preload spring; 18. First limit nut; 19. Second limit nut; 20. Bracket; 21. Universal wheel; 22. First regulating nut; 23. Second regulating nut; 24. Reinforcement rib; 25. Lock rod; 26. Locking knob; 27. Threaded rod; 28. Fine-tuning hole; 29. ​​Adapter block; 30. Level; 31. Rotating shaft; 32. Screw. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-8 This application is described in further detail.

[0032] See also Figure 1-Figure 5A highly stable floor scrubber includes a frame 1, the frame 1 is provided with a head and a tail, a swing base plate 2 is installed at the tail of the frame 1, the cross section of the swing base plate 2 is Z-shaped, and one end of the swing base plate 2 is hinged to the tail of the frame 1 through a pin A3. A squeegee module 4 is installed at the other end of the swing base plate 2, a radial spherical bearing 5 is fixedly installed in the middle of the swing base plate 2, a lifting slide bar 6 is installed in the radial spherical bearing 5 for lifting, the lifting slide bar 6 simultaneously penetrates the swing base plate 2, and the bottom end of the lifting slide bar 6 is coaxially fixedly connected to a limiting head 7, and the limiting head 7 is used to prevent the lifting slide bar 6 from being separated from the radial spherical bearing 5. A first spring 8 is sleeved on the side wall of the lifting slide bar 6, one end of the first spring 8 is fixedly connected to the side wall of the lifting slide bar 6, and the other end of the first spring 8 is pressed against the top surface of the radial spherical bearing 5. The frame 1 is also equipped with a swing assembly, which is used to drive the lifting slide bar 6 to move.

[0033] When the floor scrubber needs to absorb water, the lifting slide bar 6 is first driven down through the swing assembly, and the lifting slide bar 6 drives the limit head 7 to descend. At the same time, the lifting slide bar 6 squeezes the first spring 8, and the first spring 8 drives the swing base plate 2 to swing downward through the reaction force, and the swing base plate 2 drives the squeegee module 4 to swing downward. At this time, the squeegee module 4 is pressed against the ground. In this process, the working pressure of the squeegee module 4 is implemented by the first spring 8, which is basically kept constant and does not change with the change of the ground. It will not jump up and down or shake left and right when encountering bumpy ground, thereby ensuring the water absorption effect.

[0034] For details, see Figure 2 and Figure 3 The swing assembly includes a lifting frame 9 and a fisheye bearing 10. The lifting frame 9 is rotatably mounted on the tail of the frame 1 through a rotating shaft 31, wherein the lifting frame 9 is composed of two connecting pieces, which are staggered and fixedly connected to the side walls of the rotating shaft 31. One of the connecting pieces is hinged to one end of the fisheye bearing 10, and the other end of the fisheye bearing 10 is coaxially fixedly connected to the top end of the lifting slide bar 6.

[0035] See also Figure 2 The swing assembly also includes a driving member, which is an electric push rod 11. The cylinder end of the electric push rod 11 is hinged to the tail of the frame 1, and the telescopic end of the electric push rod 11 is hinged to the other end connecting piece.

[0036] In the initial state, the telescopic end of the electric push rod 11 is shortened, the lifting slide bar 6 pulls the swing base plate 2 upward through the limit head 7, and the squeegee module 4 is separated from the ground. When the electric push rod 11 is started, the telescopic end of the electric push rod 11 is extended, and the lifting frame 9 is driven to rotate counterclockwise, and the lifting frame 9 drives the lifting slide bar 6 to descend through the fisheye bearing 10, and the lifting slide bar 6 drives the limit head 7 to descend, and at the same time slides in the radial joint bearing 5, and the lifting slide bar 6 squeezes the first spring 8. The first spring 8 drives the swing base plate 2 to swing toward the direction close to the ground through the reaction force, and the swing base plate 2 then drives the squeegee module 4 to swing toward the direction close to the ground.

[0037] For details, see Figure 2 and Figure 3 The squeegee module 4 includes a mounting plate 12 and a squeegee 13. One end of the mounting plate 12 is hingedly mounted on an end of the swing base plate 2 away from the frame 1 through a pin B14. The squeegee 13 is detachably mounted on the other end of the mounting plate 12.

[0038] In addition, see Figure 2 and Figure 6 The mounting plate 12 is also equipped with an adjustment component, which is used to adjust the elevation angle of the water-absorbing sub-squeegee 13. The adjustment component includes an adjustment knob 15, a self-locking nut 16 and a pre-stress spring 17. The adjustment knob 15 includes a threaded end and an adjustment end. The threaded end of the adjustment knob 15 passes through the swing base plate 2 and the mounting plate 12 in sequence, and extends below the mounting plate 12. The self-locking nut 16 is threadedly connected to the threaded end of the adjustment knob 15. The pre-stress spring 17 is sleeved on the adjustment knob 15, and the pre-stress spring 17 is placed between the adjustment base plate and the mounting plate 12, and one end of the pre-stress spring 17 abuts against the swing base plate 2, and the other end of the pre-stress spring 17 abuts against the mounting plate 12.

[0039] At the same time, in order to facilitate the adjustment of the elevation angle of the water-absorbing squeegee 13, the mounting plate 12 is also equipped with a limiting member, which is a first limiting nut 18 and a second limiting nut 19. The first limiting nut 18 and the second limiting nut 19 are both installed between the mounting plate 12 and the swing base plate 2, the first limiting nut 18 is located above the second limiting nut 19, and the first limiting nut 18 and the second limiting nut 19 are both threadedly connected to the threaded end of the adjustment knob 15.

[0040] When it is necessary to adjust the elevation angle of the water-absorbing sub-squeegee 13, first rotate the adjusting end of the adjusting knob 15 clockwise. Under the action of the self-locking nut 16, the mounting plate 12 swings with the pin shaft B14 as the axis toward the direction close to the swing base plate 2, and the mounting plate 12 squeezes the pre-stressed spring 17. At this time, the mounting plate 12 drives the water-absorbing sub-squeegee 13 to swing upward, thereby realizing a small range adjustment of the elevation angle of the water-absorbing sub-squeegee 13.

[0041] When it is necessary to increase the elevation adjustment range and buffering range of the water-absorbing squeegee 13, the first limiting nut 18 and the second limiting nut 19 are rotated respectively and brought closer to each other, thereby increasing the swing adjustment range of the water-absorbing squeegee 13. When the ground is bumpy, the preload spring 17 buffers the vibration force and keeps the water-absorbing squeegee 13 always in contact with the ground.

[0042] See also Figure 2 and Figure 7 In order to facilitate the adjustment of the height of the left and right sides of the water-absorbing squeegee 13, the two sides of the mounting plate 12 are integrally connected with the bracket 20. A universal wheel 21 is installed at the bottom of the bracket 20, and the bracket 20 is also installed with an adjustment component. The adjustment component includes a first adjustment nut 22 and a second adjustment nut 23. The top surface of the universal wheel 21 is rotatably connected with a screw rod 32, and the top end of the screw rod 32 passes through the bracket 20 and extends outside the top surface of the bracket 20. The first adjustment nut 22 and the second adjustment nut 23 are respectively threadedly connected to the screw rod 32, and the first adjustment nut 22 is placed on the top surface of the bracket 20, and the second adjustment nut 23 is placed on the bottom surface of the bracket 20.

[0043] When the height of the left or right side of the water-absorbing sub-squeegee needs to be adjusted, first loosen the first adjusting nut 22, and then turn the second adjusting nut 23 upward. At this time, the second adjusting nut 23 drives the current bracket 20 to rise, and the current bracket 20 then lifts the current side of the water-absorbing sub-squeegee 13.

[0044] Note that see Figure 2 The brackets 20 on the left and right sides are closely attached to the two sides of the swing base plate 2 , and the inner sides of the brackets 20 are fixedly connected with reinforcing ribs 24 .

[0045] The brackets 20 on the left and right sides are closely attached to the two sides of the swing base plate 2, so that the left and right directions of the mounting plate 12 are limited, and the left and right shaking of the mounting base plate and the water-absorbing sub-squeegee 13 due to mechanical errors is reduced. The reinforcing ribs 24 are conducive to increasing the hardness of the brackets 20 themselves, and further improving the stability of the left and right height adjustment of the water-absorbing sub-squeegee 13.

[0046] See also Figure 8 In order to improve the convenience of disassembly and assembly of the water-absorbing sub-squeegee 13, a locking rod 25 is penetrated through the bottom surface of the water-absorbing sub-squeegee 13, and the top end of the locking rod 25 also penetrates the mounting plate 12. The top end of the locking rod 25 is threadedly connected with a locking knob 26.

[0047] When the water-absorbing sub-squeegee 13 needs to be installed, the water-absorbing sub-squeegee 13 is first placed on the bottom surface of the mounting plate 12, and then the locking rod 25 is sequentially passed through the water-absorbing sub-squeegee 13 and the mounting plate 12, and then the locking knob 26 and the locking rod 25 are threadedly tightened. At this time, the water-absorbing sub-squeegee 13 is fixed to the bottom surface of the mounting plate 12.

[0048] It is worth mentioning that, in practical applications, a fine-tuning component can be used to adjust the left and right movement of the water-absorbing squeegee 13 in a small range to overcome mechanical installation errors and ensure that the water-absorbing squeegee 13 is in the same straight line as the center line of the frame 1.

[0049] The fine-tuning assembly includes a threaded rod 27, which is rotatably mounted on the top surface of the mounting plate 12 through a fixing frame, and a fine-tuning hole 28 is formed through the top surface of the mounting plate 12, and the locking rod 25 is slidably connected to the fine-tuning hole 28. A transfer block 29 is slidably provided on the top surface of the mounting plate 12, and the threaded rod 27 is threadedly penetrated through the transfer block 29, and the top end of the locking rod 25 is penetrated through the transfer block 29.

[0050] When it is necessary to fine-tune the left and right position of the water-absorbing sub-squeegee 13, first rotate the threaded rod 27, the threaded rod 27 drives the adapter block 29 to move left and right for fine-tuning, the adapter block 29 drives the locking rod 25 to move left and right for fine-tuning, and the locking rod 25 then drives the water-absorbing sub-squeegee 13 to move left and right for fine-tuning, thereby achieving the adjustment of the left and right position of the water-absorbing sub-squeegee 13.

[0051] It should be noted that see Figure 8 In order to facilitate observation of whether the left and right sides of the water-absorbing sub-squeegee 13 are on the same horizontal plane, a level 30 is symmetrically fixedly installed on the left and right sides of the top surface of the water-absorbing sub-squeegee 13.

[0052] The level meter 30 can be used to easily observe whether the left and right sides of the water-absorbing sub-squeegee 13 are on the same horizontal plane.

[0053] The working principle of a high-stability floor scrubber: When the floor scrubber needs to be used to absorb water from the floor, the electric push rod 11 is first started, the telescopic end of the electric push rod 11 is extended, and the lifting frame 9 is driven to rotate counterclockwise. The lifting frame 9 drives the lifting slide bar 6 to descend through the fisheye bearing 10, and the lifting slide bar 6 drives the limit head 7 to descend, and slides in the radial joint bearing 5 at the same time, and the lifting slide bar 6 squeezes the first spring 8. The first spring 8 drives the swing base plate 2 to swing toward the direction close to the ground with the pin A3 as the axis through the reaction force, and the swing base plate 2 then drives the squeegee module 4 to swing toward the direction close to the ground.

[0054] When it is necessary to adjust the elevation angle of the water-absorbing sub-squeegee 13, first rotate the adjusting end of the adjusting knob 15 clockwise. Under the action of the self-locking nut 16, the mounting plate 12 swings with the pin shaft B14 as the axis toward the direction close to the swing base plate 2, and the mounting plate 12 squeezes the pre-stressed spring 17. At this time, the mounting plate 12 drives the water-absorbing sub-squeegee 13 to swing upward, thereby realizing a small range adjustment of the elevation angle of the water-absorbing sub-squeegee 13.

[0055] When the height of the left or right side of the water-absorbing sub-squeegee needs to be adjusted, first loosen the first adjusting nut 22, and then turn the second adjusting nut 23 upward. At this time, the second adjusting nut 23 drives the current bracket 20 to rise, and the current bracket 20 then lifts the current side of the water-absorbing sub-squeegee 13.

[0056] When it is necessary to fine-tune the left and right position of the water-absorbing sub-squeegee 13, first rotate the threaded rod 27, the threaded rod 27 drives the adapter block 29 to move left and right for fine-tuning, the adapter block 29 drives the locking rod 25 to move left and right for fine-tuning, and the locking rod 25 then drives the water-absorbing sub-squeegee 13 to move left and right for fine-tuning, thereby achieving the adjustment of the left and right position of the water-absorbing sub-squeegee 13.

[0057] In summary, the working pressure of the squeegee module 4 is implemented by the first spring 8, which is basically kept constant and does not change with the changes in the ground. It will not jump up and down or shake left and right when encountering bumpy ground, which is conducive to ensuring the water absorption effect.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A highly stable floor scrubber, comprising a frame (1), characterized in that: The rear part of the frame (1) is hingedly provided with a swing base plate (2) through a pin shaft A (3), and a squeegee module (4) is provided at one end of the swing base plate (2) away from the frame (1). A radial joint bearing (5) is provided in the middle part of the swing base plate (2), and a lifting slide bar (6) is provided in the radial joint bearing (5) for lifting and lowering, and a limit position head (7) is provided at one end of the lifting slide bar (6). A first spring (8) is sleeved on the side wall of the lifting slide bar (6), and one end of the first spring (8) is fixedly connected to the side wall of the lifting slide bar (6), and the other end of the first spring (8) is in contact with the top surface of the radial joint bearing (5). The frame (1) is provided with a swing component for driving the lifting slide bar (6) to move.

2. A high-stability floor scrubber according to claim 1, characterized in that: The swing assembly comprises a lifting frame (9) and a fisheye bearing (10); the lifting frame (9) is rotatably arranged at the rear of the frame (1) via a rotating shaft (31); one end of the lifting frame (9) is hinged to one end of the fisheye bearing (10); the other end of the fisheye bearing (10) is fixedly connected to the lifting slide bar (6); and the frame (1) is provided with a driving member for driving the lifting frame (9) to rotate.

3. A high-stability floor scrubber according to claim 1, characterized in that: The squeegee module (4) comprises a mounting plate (12) and a squeegee (13); the mounting plate (12) is hingedly arranged on one end of the swing base plate (2) away from the frame (1) via a pin shaft B (14); the squeegee (13) is arranged on one end of the mounting plate (12) away from the frame (1); and the mounting plate (12) is provided with an adjustment component for adjusting the elevation angle of the squeegee (13).

4. A high-stability floor scrubber according to claim 3, characterized in that: The adjustment component comprises an adjustment knob (15), a self-locking nut (16) and a pre-stress spring (17); one end of the adjustment knob (15) passes through the swing base plate (2) and the mounting plate (12) in sequence; the self-locking nut (16) is threadedly connected to one end of the adjustment knob (15); the pre-stress spring (17) is sleeved on the adjustment knob (15); one end of the pre-stress spring (17) abuts against the bottom surface of the swing base plate (2); the other end of the pre-stress spring (17) abuts against the top surface of the mounting plate (12); and the mounting plate (12) is further provided with a limiter for limiting the adjustment amplitude.

5. A high-stability floor scrubber according to claim 4, characterized in that: The limiting member is a first limiting nut (18) and a second limiting nut (19); the first limiting nut (18) and the second limiting nut (19) are both arranged between the mounting plate (12) and the swing base plate (2); the first limiting nut (18) and the second limiting nut (19) are both threadedly connected to the adjusting knob (15).

6. A high-stability floor scrubber according to claim 3, characterized in that: Brackets (20) are respectively arranged on both sides of the mounting plate (12), universal wheels (21) are arranged at the bottom of the brackets (20), and the brackets (20) are provided with a regulating component for adjusting the height of the water-absorbing squeegee (13).

7. A high-stability floor scrubber according to claim 6, characterized in that: The regulating component comprises a first regulating nut (22) and a second regulating nut (23); a screw rod (32) is rotatably arranged on the top surface of the universal wheel (21); the screw rod (32) passes through the bracket (20); the first regulating nut (22) and the second regulating nut (23) are respectively threadedly connected to the screw rod (32); the first regulating nut (22) is placed on the top surface of the bracket (20), and the second regulating nut (23) is placed on the bottom surface of the bracket (20).

8. The high-stability floor scrubber according to claim 6, characterized in that: The bracket (20) is closely attached to two sides of the swing base plate (2), and the bracket (20) is provided with reinforcing ribs (24).

9. The high-stability floor scrubber according to claim 3, characterized in that: A locking rod (25) is provided through the bottom surface of the water-absorbing squeegee (13), one end of the locking rod (25) also passes through the mounting plate (12), and one end of the locking rod (25) is threadedly connected to a locking knob (26).

10. A high-stability floor scrubber according to claim 3, characterized in that: A level gauge (30) is symmetrically arranged on the top surface of the water-absorbing spout (13).

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