High-stability floor washing machine

Abstract

The application relates to the technical field of floor washing machines, in particular to a high-stability floor washing machine which comprises a vehicle frame, a swing base plate is hingedly arranged at the tail of the vehicle frame through a pin shaft A, a water suction scraper module is arranged at one end of the swing base plate away from the vehicle frame, a centripetal joint bearing is arranged at the middle part of the swing base plate, a lifting slide rod is arranged in the centripetal joint bearing in a lifting mode, a limiting head is arranged at one end of the lifting slide rod, a first spring is sleeved on the side wall of the lifting slide rod, one end of the first spring is fixedly connected with the side wall of the lifting slide rod, the other end of the first spring is abutted against the top surface of the centripetal joint bearing, and the vehicle frame is provided with a swing assembly used for driving the lifting slide rod to move. The application has the effects of stabilizing the pressure of the water suction scraper and improving the water suction effect of the floor washing machine.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of floor washing machines, in particular to a high-stability floor washing machine. BACKGROUND

[0002] As a modern cleaning device, the performance of the water suction scraper, the core functional component of the floor washing machine, directly determines the ground cleaning effect and working efficiency of the device. There are still many technical defects in the design of the water suction scraper control mechanism of the floor washing machine products on the current market, which seriously restricts the operation efficiency of the device and the user experience.

[0003] Firstly, in terms of lifting control, the existing technology mainly adopts two implementation methods: one is to realize the vertical displacement adjustment of the water suction scraper through a manual operation mechanism (such as a mechanical handle or a cable device). Although this scheme is simple in structure, for medium and large floor washing machines, the operator needs to repeatedly apply a large force for lifting operation, which significantly increases the labor intensity, and cannot realize the integration of automatic operation process. The second method adopts an electric push rod driving mode, which has the advantages of automatic control, but has problems such as large size of the driving mechanism, high manufacturing cost, and easy to cause mechanical wear under frequent start-stop working conditions.

[0004] Regarding the working pressure control link, the current industry technology has multiple technical bottlenecks: (1) The solution that simply relies on the self-weight pressure of the water suction scraper leads to poor water sealing due to insufficient payload, especially when working on smooth hard ground, which is easy to form water film residue; (2) The improved solution by adding a counterweight can improve the pressure parameter, but it increases the overall machine quality by about 30%-50%, which not only increases the burden of the power system, but also causes high-frequency vibration of the water suction scraper due to inertia when working on uneven ground, which damages the vacuum sealing interface; (3) The composite pressure solution of the electric push rod combined with the elastic element can realize dynamic pressure compensation, but it has inherent defects such as complex control logic, spring fatigue characteristics affecting pressure stability, and pressure parameter adjustment requiring professional tools, which does not have the engineering practicality of on-site quick adjustment.

[0005] In addition, in terms of three-dimensional attitude adjustment, the existing products generally have structural design defects. In order to achieve the best water suction effect, the water suction scraper needs to have X / Y axis horizontal fine adjustment and Z axis inclination adjustment functions. However, the mainstream products currently use multi-bolt positioning structures, which require alternating tightening and loosening of multiple fasteners during adjustment, which is time-consuming and tedious to operate. More importantly, the traditional hinged structure is prone to clearance under long-term vibration conditions, which leads to instability of the adjustment parameters, and frequent unilateral leakage or scraper wear during operation, which seriously affects the service life of the device.

[0006] The existence of the above technical defects not only significantly reduces the cleaning quality, but also increases the equipment maintenance cost by about 40%, seriously restricting the application and promotion of the scrubber in the high-end cleaning market. Therefore, it is urgent to develop a high-stability scrubber. SUMMARY

[0007] In order to stabilize the pressure of the water suction scraper and improve the water suction effect of the scrubber, the application provides a high-stability scrubber.

[0008] The high-stability scrubber provided by the application adopts the following technical scheme:

[0009] A high-stability scrubber, comprising a vehicle frame, a swing base plate is hingedly arranged at the tail of the vehicle frame through a pin shaft A, a water suction scraper module is arranged at one end of the swing base plate away from the vehicle frame, a centripetal joint bearing is arranged in the middle of the swing base plate, a lifting slide rod is arranged in the centripetal joint bearing, a limiting head is arranged at one end of the lifting slide rod, a first spring is sleeved on the side wall of the lifting slide rod, one end of the first spring is fixedly connected with the side wall of the lifting slide rod, and the other end of the first spring is in abutment with the top surface of the centripetal joint bearing, and the vehicle frame is provided with a swing assembly for driving the lifting slide rod to move.

[0010] By adopting the above technical scheme, when the scrubber is needed to be used for water suction, the lifting slide rod is first driven to descend by the swing assembly, the lifting slide rod moves downward, the first spring is extruded at the same time, the swing base plate is driven to swing downward by the reaction force of the first spring, the swing base plate drives the water suction scraper module to swing downward, at this time, the water suction scraper module is in abutment with the ground, the working pressure of the water suction scraper module is implemented by the first spring, and is basically kept constant and does not change with the change of the ground. When encountering a bumpy ground, the lifting slide rod will not jump up and down and shake left and right, which is beneficial to guarantee the water suction effect.

[0011] Optionally, the swing assembly comprises a lifting frame and a fish eye bearing, the lifting frame is rotationally arranged at the tail of the vehicle frame through a rotating shaft, one end of the lifting frame is hingedly connected with one end of the fish eye bearing, the other end of the fish eye bearing is fixedly connected with the lifting slide rod, and the vehicle frame is provided with a driving piece for driving the lifting frame to rotate.

[0012] By adopting the above technical scheme, when the driving piece drives the lifting frame to rotate clockwise, the lifting frame drives the lifting slide rod to rise through the fish eye bearing, and vice versa, when the driving piece drives the lifting frame to rotate counterclockwise, the lifting frame drives the lifting slide rod to descend through the fish eye bearing, thereby being beneficial to improve the stability of the lifting slide rod in lifting and descending.

[0013] Optionally, the water absorption scraper module comprises a mounting plate and a water absorption sub-scraper, the mounting plate is hingedly arranged at one end of the swing base plate away from the vehicle frame through a pin shaft B, and the water absorption sub-scraper is arranged at one end of the mounting plate away from the vehicle frame; the mounting plate is provided with an adjusting assembly for adjusting the elevation angle of the water absorption sub-scraper.

[0014] By adopting the above technical scheme, when the swing base plate swings downward, the swing base plate drives the water absorption sub-scraper to swing downward toward the ground through the mounting plate; in addition, the elevation angle of the water absorption sub-scraper can be adjusted through the adjusting assembly, so that the water absorption sub-scraper is stably attached to the ground, and finally the water absorption effect of the scrubber is ensured.

[0015] Optionally, the adjusting assembly comprises an adjusting knob, a self-locking nut and a pre-pressed spring, one end of the adjusting knob penetrates the swing base plate and the mounting plate in sequence, the self-locking nut is threadedly connected with one end of the adjusting knob, the pre-pressed spring is sleeved on the adjusting knob, one end of the pre-pressed spring abuts against the bottom surface of the swing base plate, and the other end of the pre-pressed spring abuts against the top surface of the mounting plate; the mounting plate is further provided with a limiting piece for limiting the adjustment range.

[0016] By adopting the above technical scheme, when the elevation angle of the water absorption sub-scraper needs to be adjusted, first, when the adjusting knob is turned clockwise, the mounting plate swings toward the swing base plate about the pin shaft B under the action of the self-locking nut, and the mounting plate presses the pre-pressed spring; similarly, when the adjusting knob is turned counterclockwise, the pre-pressed spring releases the elastic force and drives the mounting plate to swing away from the swing base plate about the pin shaft B, so that the small-range adjustment of the elevation angle of the water absorption sub-scraper is realized; in addition, under the action of the pre-pressed spring, when the ground bounces, the pre-pressed spring buffers the vibration of the water absorption sub-scraper, so that the service life of the water absorption sub-scraper is improved.

[0017] Optionally, the limiting piece is a first limiting nut and a second limiting nut, both the first limiting nut and the second limiting nut are arranged between the mounting plate and the swing base plate, and both the first limiting nut and the second limiting nut are threadedly connected with the adjusting knob.

[0018] By adopting the above technical scheme, when the elevation angle adjustment range and the buffering range of the water absorption sub-scraper need to be increased, the first limiting nut and the second limiting nut are respectively turned and moved closer to each other; conversely, when the elevation angle adjustment range and the buffering range of the water absorption sub-scraper need to be reduced, the first limiting nut and the second limiting nut are respectively turned and moved away from each other.

[0019] Optionally, both sides of the mounting plate are respectively provided with a support, the bottom of the support is provided with a universal wheel, and the support is provided with an adjusting and controlling assembly for adjusting the height of the water absorption sub-scraper.

[0020] By adopting the above technical scheme, under the auxiliary support of the universal wheel, the height of the left and right sides of the water absorption sub-shovel is finally adjusted by the regulating assembly, so that the water absorption sub-shovel is ensured to be flat and closely attached to the ground, thereby improving the water absorption effect of the water absorption sub-shovel.

[0021] Optionally, the regulating assembly comprises a first regulating nut and a second regulating nut, the top surface of the universal wheel is rotationally provided with a screw rod, the screw rod penetrates the support, the first regulating nut and the second regulating nut are respectively threadedly connected with the screw rod, and the first regulating nut is arranged on the top surface of the support, and the second regulating nut is arranged on the bottom surface of the support.

[0022] By adopting the above technical scheme, when it is necessary to adjust the height of one side of the water absorption sub-shovel, the first regulating nut is first loosened, and then the second regulating nut is tightened by rotating upward, at this time the second regulating nut drives the one side support to rise, and the one side support in turn lifts one side of the water absorption sub-shovel, thereby facilitating the stability of the height adjustment of the two sides of the water absorption sub-shovel.

[0023] Optionally, the support is closely attached to the two sides of the swing base plate, and the support is provided with a reinforcing rib.

[0024] By adopting the above technical scheme, the support is closely attached to the two sides of the swing base plate, thereby reducing the shaking between the mounting plate and the swing base plate, i.e. reducing the shaking of the water absorption sub-shovel during operation, improving the stability of the water absorption sub-shovel, and improving the overall strength of the support through the reinforcing rib.

[0025] Optionally, the bottom surface of the water absorption sub-shovel is provided with a locking rod, one end of the locking rod further penetrates the mounting plate, and one end of the locking rod is threadedly connected with a locking knob.

[0026] By adopting the above technical scheme, when it is necessary to install the water absorption sub-shovel, the water absorption sub-shovel is first attached to the bottom surface of the mounting plate, then the locking rod is sequentially penetrated through the water absorption sub-shovel and the mounting plate, and then the locking knob is threadedly connected with the locking rod, at this time the water absorption sub-shovel is fixed to the bottom surface of the mounting plate, thereby facilitating the detachability of the water absorption sub-shovel.

[0027] Optionally, the top surface of the water absorption sub-shovel is symmetrically provided with a level.

[0028] By adopting the above technical scheme, the leveling of the water absorption sub-shovel is detected by the level, which is conducive to ensuring the flat use of the water absorption sub-shovel during operation.

[0029] In summary, the present application has the following beneficial technical effects:

[0030] When the water suction of the scrubber is needed, the lifting slide bar is first driven to descend by the swing assembly, and the lifting slide bar moves downward while pressing the first spring, the first spring drives the swing base plate to swing downward through the reaction force, and the swing base plate drives the water suction scraper module to swing downward, at this time, the water suction scraper module is tightly pressed against the ground, the working pressure of the water suction scraper module is implemented through the first spring, which is basically constant and does not change with the ground, and does not appear up and down jumping and left and right shaking when encountering bumpy ground, which is beneficial to ensure the water suction effect. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a schematic diagram of the overall structure of the vehicle frame of the present application;

[0032] Figure 2 is a schematic diagram of the partial structure of the tail of the vehicle frame of the present application;

[0033] Figure 3 is a schematic diagram of the side view of the vehicle frame of the present application;

[0034] Figure 4 is a schematic diagram of the structure of the lifting slide bar of the present application;

[0035] Figure 5 is a schematic diagram of the structure of the centripetal joint bearing of the present application;

[0036] Figure 6 is a schematic diagram of the structure of the adjusting assembly of the present application;

[0037] Figure 7 is a schematic diagram of the structure of the universal wheel and the regulating assembly of the present application;

[0038] Figure 8 is a top view of the water suction scraper module of the present application.

[0039] BRIEF DESCRIPTION OF DRAWINGS: 1, vehicle frame; 2, swing base plate; 3, pin shaft A; 4, water suction scraper module; 5, centripetal joint bearing; 6, lifting slide bar; 7, limiting head; 8, first spring; 9, lifting frame; 10, fish eye bearing; 11, electric push rod; 12, mounting plate; 13, water suction sub-scraper; 14, pin shaft B; 15, adjusting knob; 16, self-locking nut; 17, pre-pressing spring; 18, first limiting nut; 19, second limiting nut; 20, support; 21, universal wheel; 22, first regulating nut; 23, second regulating nut; 24, reinforcing rib; 25, locking rod; 26, locking knob; 27, threaded rod; 28, fine adjustment hole; 29, adapter block; 30, level; 31, rotating shaft; 32, screw rod. DETAILED DESCRIPTION

[0040] The following will be described in detail in combination with the drawings Figures 1-8 The present application will be further described in detail.

[0041] Referring toFigures 1-5 The utility model provides a high stability floor washing machine, including frame 1, frame 1 is equipped with head and tail, and the tail of frame 1 is installed swing base plate 2, and the cross section of swing base plate 2 is Z type, and one end of swing base plate 2 is hinged to the tail of frame 1 through pin shaft A3, and the other end of swing base plate 2 is installed water sucking scraper module 4, and the middle part of swing base plate 2 is fixedly installed centripetal joint bearing 5, and lifting slide rod 6 is installed in centripetal joint bearing 5, and lifting slide rod 6 penetrates swing base plate 2 simultaneously, and the bottom end of lifting slide rod 6 is coaxially fixedly connected with limit head 7, and lifting slide rod 6 is avoided from the centripetal joint bearing 5 through limit head 7, and the lateral wall of lifting slide rod 6 is equipped with first spring 8, one end of first spring 8 is fixedly connected with the lateral wall of lifting slide rod 6, and the other end of first spring 8 is abutted to the top surface of centripetal joint bearing 5, and frame 1 is also installed swing assembly, and swing assembly is used to drive lifting slide rod 6 to move.

[0042] when needing to use floor washing machine to suck water, first, swing assembly drives lifting slide rod 6 to descend, lifting slide rod 6 drives limit head 7 to descend, lifting slide rod 6 extrudes first spring 8 simultaneously, and first spring 8 drives swing base plate 2 to swing downward through reaction force, swing base plate 2 drives water sucking scraper module 4 to swing downward, and water sucking scraper module 4 is abutted to the ground at this time.

[0043] Specifically, referring to Figure 2 And Figure 3 Swing assembly includes lifting frame 9 and fish eye bearing 10, lifting frame 9 is rotatably installed on the tail of frame 1 through pivot 31, wherein, lifting frame 9 is composed of two connecting sheets, and the two connecting sheets are arranged in staggered mode and fixedly connected to the lateral wall of pivot 31, one of the two connecting sheets is hinged to one end of fish eye bearing 10, and the other end of fish eye bearing 10 is coaxially fixedly connected to the top end of lifting slide rod 6.

[0044] Referring to Figure 2 Swing assembly further includes driving member, and the driving member is electric push rod 11, the cylinder end of electric push rod 11 is hinged to the tail of frame 1, and the telescopic end of electric push rod 11 is hinged to the other connecting sheet.

[0045] In the initial state, the telescopic end of the electric push rod 11 is shortened, the lifting slide rod 6 pulls the swing base plate 2 upward through the limiting head 7, and the water absorption scraper 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 lengthened, and the lifting frame 9 is driven to rotate counterclockwise, the lifting slide rod 6 is driven to descend through the fish-eye bearing 10, the lifting slide rod 6 drives the limiting head 7 to descend and simultaneously slides in the centripetal joint bearing 5, and the lifting slide rod 6 extrudes the first spring 8. The first spring 8 drives the swing base plate 2 to swing toward the ground through the reaction force, and the swing base plate 2 in turn drives the water absorption scraper module 4 to swing toward the ground.

[0046] Specifically, referring to Figure 2 and Figure 3 , the water absorption scraper module 4 comprises a mounting plate 12 and a water absorption sub-scraper 13, one end of the mounting plate 12 is hingedly installed on the end of the swing base plate 2 away from the vehicle frame 1 through the pin shaft B14. The water absorption sub-scraper 13 is detachably installed on the other end of the mounting plate 12.

[0047] In addition, referring to Figure 2 and Figure 6 , the mounting plate 12 is also provided with an adjusting assembly for adjusting the elevation angle of the water absorption sub-scraper 13. The adjusting assembly comprises an adjusting knob 15, a self-locking nut 16 and a pre-pressed spring 17. The adjusting knob 15 comprises a threaded end and an adjusting end, the threaded end of the adjusting knob 15 penetrates the swing base plate 2 and the mounting plate 12 in turn and extends below the mounting plate 12. The self-locking nut 16 is threadedly connected with the threaded end of the adjusting knob 15. The pre-pressed spring 17 is sleeved on the adjusting knob 15, the pre-pressed spring 17 is arranged between the adjusting base plate and the mounting plate 12, one end of the pre-pressed spring 17 abuts against the swing base plate 2, and the other end of the pre-pressed spring 17 abuts against the mounting plate 12.

[0048] At the same time, in order to limit the adjustment range of the elevation angle of the water absorption sub-scraper 13, the mounting plate 12 is also provided with a limiting piece, 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 with the threaded end of the adjusting knob 15.

[0049] When it is necessary to adjust the elevation angle of the water absorption sub-scraper 13, the adjusting end of the adjusting knob 15 is first rotated clockwise, the mounting plate 12 swings toward the swing base plate 2 under the action of the self-locking nut 16, and the mounting plate 12 extrudes the pre-pressed spring 17, at this time, the mounting plate 12 drives the water absorption sub-scraper 13 to swing upward, thereby realizing small-range adjustment of the elevation angle of the water absorption sub-scraper 13.

[0050] When it is needed to increase the elevation angle adjustment range and the buffer range of the water absorption sub-scraper 13, the first limiting nut 18 and the second limiting nut 19 are rotated respectively and are close to each other, so as to increase the swing adjustment range of the water absorption sub-scraper 13. When the ground is bumpy, the pre-pressing spring 17 buffers the vibration force at this time, and the water absorption sub-scraper 13 is always in contact with the ground.

[0051] Referring to Figure 2 and Figure 7 In order to adjust the height of the left and right sides of the water absorption sub-scraper 13, the two sides of the mounting plate 12 are integrally connected with the brackets 20. The bottom of the bracket 20 is provided with the universal wheel 21, and the bracket 20 is also provided with the control assembly. The control assembly includes the first control nut 22 and the second control nut 23. The top surface of the universal wheel 21 is rotatably connected with the screw rod 32, the top end of the screw rod 32 penetrates through the bracket 20 and extends out of the top surface of the bracket 20. The first control nut 22 and the second control nut 23 are threadedly connected with the screw rod 32, and the first control nut 22 is arranged on the top surface of the bracket 20, and the second control nut 23 is arranged on the bottom surface of the bracket 20.

[0052] When it is needed to adjust the height of the left or right side of the sub-scraper, the first control nut 22 is loosened first, and then the second control nut 23 is rotated upward, at this time the second control nut 23 drives the current bracket 20 to rise, and the current bracket 20 in turn lifts the current side of the water absorption sub-scraper 13.

[0053] It should be noted that, referring to Figure 2 , the left and right brackets 20 are closely arranged on the two sides of the swing base plate 2, and the inner side of the bracket 20 is fixedly connected with the reinforcing rib 24.

[0054] By closely arranging the left and right brackets 20 on the two sides of the swing base plate 2, the left and right directions of the mounting plate 12 are limited, and the left and right shaking of the mounting plate and the water absorption sub-scraper 13 caused by mechanical errors is reduced. The reinforcing rib 24 is beneficial to increase the hardness of the bracket 20 itself, and further improve the stability of the left and right height adjustment of the water absorption sub-scraper 13.

[0055] Referring to Figure 8 In order to improve the convenience of disassembling and assembling the water absorption sub-scraper 13, the bottom surface of the water absorption sub-scraper 13 penetrates the lock rod 25, and the top end of the lock rod 25 also penetrates the mounting plate 12. The top end of the lock rod 25 is threadedly connected with the locking knob 26.

[0056] When it is needed to install the water absorption sub-scraper 13, the water absorption sub-scraper 13 is first placed on the bottom surface of the mounting plate 12, and then the lock rod 25 is sequentially penetrated through the water absorption sub-scraper 13 and the mounting plate 12, and then the locking knob 26 is threadedly tightened with the lock rod 25, at this time the water absorption sub-scraper 13 is fixed on the bottom surface of the mounting plate 12.

[0057] It is worth mentioning that, in practical application, a fine adjustment assembly for adjusting the left and right movement of the water absorption sub-shovel 13 can also be selected to overcome mechanical installation errors and ensure that the water absorption sub-shovel 13 is in the same straight line as the center line of the vehicle frame 1.

[0058] The fine adjustment assembly comprises a threaded rod 27 rotatably mounted on the top surface of the mounting plate 12 through a fixing frame, the top surface of the mounting plate 12 is provided with a fine adjustment hole 28, and the lock rod 25 is in sliding connection with the fine adjustment hole 28. The top surface of the mounting plate 12 is slidably provided with an adapter block 29, the threaded rod 27 is threaded through the adapter block 29, and the top end of the lock rod 25 is threaded through the adapter block 29.

[0059] When fine adjustment of the left and right positions of the water absorption sub-shovel 13 is needed, the threaded rod 27 is first rotated, the threaded rod 27 drives the adapter block 29 to move left and right for fine adjustment, the adapter block 29 drives the lock rod 25 to move left and right for fine adjustment, and the lock rod 25 in turn drives the water absorption sub-shovel 13 to move left and right for fine adjustment, so as to realize adjustment of the left and right positions of the water absorption sub-shovel 13.

[0060] It should be noted that, referring to Figure 8 In order to observe whether the left and right sides of the water absorption sub-shovel 13 are in the same horizontal plane, a level 30 is symmetrically and fixedly installed on the top surface of the water absorption sub-shovel 13.

[0061] The level 30 is convenient for observing whether the left and right sides of the water absorption sub-shovel 13 are in the same horizontal plane.

[0062] The working principle of a high-stability floor washing machine:

[0063] When the floor washing machine is needed to be used to absorb water on the ground, the electric push rod 11 is first started, the telescopic end of the electric push rod 11 is elongated, and drives the lifting frame 9 to rotate counterclockwise. The lifting frame 9 drives the lifting slide rod 6 to descend through the fish eye bearing 10, the lifting slide rod 6 drives the limiting head 7 to descend, and simultaneously slides in the centripetal joint bearing 5, and the lifting slide rod 6 extrudes the first spring 8. The first spring 8 drives the swing base plate 2 to swing towards the ground through the reaction force with the pin shaft A3 as the axis, and the swing base plate 2 in turn drives the water absorption shovel module 4 to swing towards the ground.

[0064] When the elevation angle of the water absorption sub-shovel 13 needs to be adjusted, the adjustment end of the adjustment knob 15 is first rotated clockwise, the mounting plate 12 swings towards the swing base plate 2 with the pin shaft B14 as the axis under the action of the self-locking nut 16, and the mounting plate 12 extrudes the pre-pressing spring 17, at this time, the mounting plate 12 drives the water absorption sub-shovel 13 to swing upwards, so as to realize small-range adjustment of the elevation angle of the water absorption sub-shovel 13.

[0065] When the height of the left or right side of the sub-scraper needs to be adjusted, first loosen the first adjusting nut 22, and then turn the second adjusting nut 23 upwards, at this time the second adjusting nut 23 drives the current support 20 to rise, and the current support 20 in turn lifts the current side of the water absorption sub-scraper 13.

[0066] When fine adjustment of the left and right positions of the water absorption sub-scraper 13 is needed, first turn the threaded rod 27, the threaded rod 27 drives the adapter block 29 to move left and right for fine adjustment, the adapter block 29 drives the lock rod 25 to move left and right for fine adjustment, and the lock rod 25 in turn drives the water absorption sub-scraper 13 to move left and right for fine adjustment, thereby achieving adjustment of the left and right positions of the water absorption sub-scraper 13.

[0067] As described above, the working pressure of the water absorption scraper module 4 is implemented by the first spring 8, is basically kept constant, does not change with the change of the ground, and does not appear up and down jumping and left and right shaking when encountering bumpy ground, which is conducive to ensuring the water absorption effect.

[0068] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A highly stable floor scrubber, comprising a frame (1), characterized in that: The rear of the frame (1) is hinged with a swing base plate (2) by a pin A (3). A water suction 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 of the swing base plate (2). A lifting slide rod (6) is provided in the radial joint bearing (5). A limit head (7) is provided at one end of the lifting slide rod (6). A first spring (8) is sleeved on the side wall of the lifting slide rod (6). One end of the first spring (8) is fixedly connected to the side wall of the lifting slide rod (6). The other end of the first spring (8) abuts against the top surface of the radial joint bearing (5). The frame (1) is provided with a swing assembly for driving the lifting slide rod (6) to move. The water-absorbing squeegee module (4) includes a mounting plate (12) and a water-absorbing squeegee (13). The mounting plate (12) is hinged to the swing base plate (2) away from the frame (1) via a pin B (14). The water-absorbing squeegee (13) is located at the end of the mounting plate (12) away from the frame (1). The mounting plate (12) is provided with an adjustment component for adjusting the elevation angle of the water-absorbing squeegee (13). The adjustment assembly includes an adjustment knob (15), a self-locking nut (16), and a preload 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 threaded to one end of the adjustment knob (15). The preload spring (17) is sleeved on the adjustment knob (15). One end of the preload spring (17) abuts against the bottom surface of the swing base plate (2), and the other end of the preload spring (17) abuts against the top surface of the mounting plate (12). The mounting plate (12) is also provided with a limiting member for limiting the adjustment range. The limiting components are a first limiting nut (18) and a second limiting nut (19). The first limiting nut (18) and the second limiting nut (19) are both disposed 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). The mounting plate (12) is provided with brackets (20) on both sides, and the bottom of the brackets (20) is provided with casters (21). The brackets (20) are provided with adjustment components for adjusting the height of the water suction squeegee (13).

2. The high-stability floor scrubber according to claim 1, characterized in that: The swing assembly includes a lifting frame (9) and a fisheye bearing (10). The lifting frame (9) is rotatably mounted on the rear of the frame (1) via a pivot (31). One end of the lifting frame (9) is hinged to one end of the fisheye bearing (10), and the other end of the fisheye bearing (10) is fixedly connected to the lifting slide rod (6). The frame (1) is provided with a drive component for rotating the lifting frame (9).

3. The high-stability floor scrubber according to claim 1, characterized in that: The control assembly includes a first control nut (22) and a second control nut (23). A screw (32) is rotatably mounted on the top surface of the caster wheel (21). The screw (32) passes through the bracket (20). The first control nut (22) and the second control nut (23) are threadedly connected to the screw (32). The first control nut (22) is placed on the top surface of the bracket (20), and the second control nut (23) is placed on the bottom surface of the bracket (20).

4. The high-stability floor scrubber according to claim 1, characterized in that: The bracket (20) is closely attached to both sides of the swing base plate (2), and the bracket (20) is provided with reinforcing ribs (24).

5. A highly stable floor scrubbing machine according to claim 1, characterized in that: A locking rod (25) is provided through the bottom surface of the absorbent squeegee (13), and one end of the locking rod (25) is also through the mounting plate (12). A locking knob (26) is threadedly connected to one end of the locking rod (25).

6. The high-stability floor scrubber according to claim 1, characterized in that: A level (30) is symmetrically installed on the top surface of the absorbent squeegee (13).

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