A walk-behind scrubber-dryer

Abstract

The utility model discloses a kind of floor cleaning devices for road surface cleaning, comprising: underframe;Brush disc module, with multiple brush disc components, the brush disc component is connected with underframe by floating mechanism;Hydraulic module, with the underframe is connected, the height of the underframe is adjusted, and the brush disc module is provided with pressure;Waterway module, including spray head, for cleaning ground.The utility model has beneficial effect in that, the pressure adjustment of brush disc module is realized, so that brush disc module can better adhere to different road surface, improve cleaning effect.Underframe height is adjusted by hydraulic module, and then the ground pressure of brush disc module is accurately controlled, avoid the problem that traditional mode pressure adjustment gear is few, unstable.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, specifically to a floor cleaning device for road surface cleaning. Background Technology

[0002] With the rapid development of my country's economy, the urbanization process is accelerating. The number of urban roads, squares, and parks is constantly increasing, leading to a corresponding expansion in the demand for street cleaning. Traditional manual cleaning is inefficient, while mechanical cleaning lacks intelligence.

[0003] Traditional floor scrubbing systems are divided into indoor and outdoor models, which collect and remove wastewater from the site while cleaning the floor. However, most products suffer from limitations such as limited functionality and low adaptability. For example, indoor scrubbing systems have low-protection-level components, making them unsuitable for outdoor environments. The contact pressure of the scrubbing device is a key factor affecting cleaning effectiveness; traditional structures rely primarily on manual mechanical pressurization or electric actuators for pressure application. The disadvantages include only one or two pressure settings, making them unsuitable for different cleaning surfaces, and the need for manual pressurization or depressurization. Electric actuators are prone to overpressure protection, frequently triggering fuses, and exhibiting unstable working pressure that fluctuates with changes in surface smoothness and unevenness. This results in higher actual working pressure on smoother, flatter surfaces and lower actual working pressure on rougher, uneven surfaces. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a floor cleaning device for road surface cleaning, which has high cleaning efficiency, good road surface adaptability, and ensures that the contact pressure of the floor cleaning device is controllable, stable and reliable.

[0005] Specifically, this utility model discloses a floor scrubbing device for road cleaning, comprising:

[0006] Base frame;

[0007] The brushing module has multiple brushing components, which are connected to the base frame via a floating mechanism.

[0008] A hydraulic module, connected to the base frame, adjusts the height of the base frame and provides pressure to the brush module;

[0009] The water system module, including nozzles, is used to clean the floor.

[0010] The advantages of adopting the above technical solution are that it enables pressure regulation of the brush module, allowing it to better conform to different road surfaces and improve cleaning effectiveness. By adjusting the base height through a hydraulic module, the contact pressure of the brush module is precisely controlled, avoiding the problems of limited and unstable pressure adjustment levels in traditional methods. It maintains stable and appropriate pressure when facing road surfaces of varying roughness and smoothness. Simultaneously, the floating mechanism design of the brush module further enhances the adaptability of the floor scrubbing device to different road surfaces. When the brush assembly encounters road bumps or depressions, the floating mechanism allows the brush assembly to move up and down, maintaining good contact with the road surface at all times. For example, in some older residential areas, the road surface may have potholes and unevenness; this floating mechanism allows the brush assembly to flexibly respond, ensuring comprehensive cleaning.

[0011] Furthermore, the floating mechanism includes a support connection assembly and a guide post. The brush assembly is mounted on the support connection assembly. One end of the support connection assembly is hinged to the base frame, and the other end floats up and down along the guide post.

[0012] The advantage of adopting the above technical solution is that when working on uneven road surfaces, the floating mechanism uses the expansion and contraction characteristics of the internal elastic element to make the entire structure float up and down around the hinge point, ensuring that the brush plate is in close contact with the road surface, improving the adaptability of the floor scrubbing device to different road surfaces, and ensuring the best cleaning effect.

[0013] Furthermore, the hydraulic module includes a mounting bracket and a drive component, the drive component connecting the mounting bracket and the base frame, and the drive component controlling the lifting and lowering of the base frame.

[0014] The advantage of adopting the above technical solution is that it ensures the pressure between the brush assembly and the ground, thus guaranteeing the cleaning effect.

[0015] Furthermore, the water circuit module includes a clean water tank, a detergent tank, and connecting pipes, and both the clean water tank and the detergent tank are connected to the nozzle via connecting pipes.

[0016] The advantages of adopting the above technical solution are that it enables the cleaning function of the ground, adds detergent during the cleaning process to ensure the cleaning effect, and sets up a separate container for detergent for easy addition and use. The ratio of detergent can be adjusted according to the road surface condition during use.

[0017] Furthermore, the floor cleaning device also has an anti-collision mechanism, including: an anti-collision bar and a mounting block with a rotating shaft installed. The mounting block is connected to the base frame. The anti-collision bar has a connector connected to the rotating shaft and can rotate around the rotating shaft. The mounting block is equipped with a sensor, and the connector is equipped with a sensing plate corresponding to the sensor.

[0018] The advantage of adopting the above technical solution is that the anti-collision mechanism can sense a collision and cause the floor scrubbing device to retreat away from the obstacle.

[0019] Furthermore, a return spring is installed between the anti-collision bar and the mounting block.

[0020] The advantage of adopting the above technical solution is that it enables the automatic reset function of the anti-collision mechanism, which automatically resets after moving away from the obstacle without the need for manual adjustment.

[0021] Furthermore, the floor cleaning device also has a water absorption module, including: a squeegee with a suction pipe on it, a water-absorbing strip and a walking wheel at the bottom of the squeegee, the squeegee having an arc-shaped surface and being disposed on the side of the brush assembly, and the water-absorbing strip being disposed on the side away from the brush assembly.

[0022] The advantages of adopting the above technical solution are that the water-absorbing module is used to collect the remaining wastewater after cleaning, while the water-absorbing strip initially intercepts the wastewater to prevent it from flowing out. The curved surface design helps guide the wastewater to the suction pipe, improving water absorption efficiency. The installation of the wheels makes the squeegee move more smoothly on the ground, reducing friction with the ground and extending the squeegee's service life. In some large-area plaza cleaning scenarios, this water-absorbing module can quickly and effectively collect the wastewater after cleaning, keeping the ground dry and preventing safety hazards such as pedestrians slipping.

[0023] Furthermore, the mounting frame and the base frame are connected by two sets of parallel diagonal braces, the two ends of which are hinged, and the length of the diagonal braces is adjustable.

[0024] The advantage of adopting the above technical solution is that by adjusting the length of the tie rod, the relative position and angle between the base frame and the mounting frame can be changed, thereby further optimizing the contact state between the brush module and the ground. Under different road conditions, such as sloping or gradient roads, adjusting the tie rod allows the brush assembly to better conform to the road surface, improving cleaning performance. Simultaneously, this connection method enhances the structural stability between the base frame and the mounting frame, making the floor scrubbing device more reliable during operation.

[0025] Furthermore, the brush assembly includes a brush and a brushless motor connected to the brush.

[0026] The advantages of adopting the above technical solution are that, compared to traditional brushed motors, brushless motors eliminate the friction between the brushes and the commutator, reducing mechanical losses and heat generation, thereby lowering the probability of failure and improving the motor's reliability and lifespan. During long-term road cleaning operations, brushless motors can continuously and stably provide power to the brush disc, ensuring that the brush disc maintains a consistently high rotational speed, improving cleaning efficiency. Furthermore, the brush disc speed can be flexibly adjusted according to different cleaning needs and road conditions. For example, when cleaning heavily soiled surfaces, the brush disc speed can be appropriately increased to enhance cleaning power; while when cleaning more delicate floor materials, the speed can be reduced to avoid damaging the surface.

[0027] Furthermore, baffles are provided on both sides of the brush assembly. The baffles are symmetrically arranged and have oppositely arranged bent portions. The height of the baffles is adjustable.

[0028] The advantage of adopting the above technical solution is that the baffles prevent sewage from splashing out, avoiding the sewage from splashing everywhere during the cleaning process and soiling the surrounding environment or pedestrians. The symmetrically arranged baffles with bends can better guide sewage and cleaning debris to gather in the center of the brush assembly, making it easier for the subsequent water suction module to collect them more efficiently. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0030] Figure 1 This is a schematic diagram of the overall structure of the floor scrubbing device for road cleaning according to this utility model. Figure 1

[0031] Figure 2 This is a schematic diagram of the overall structure of the floor scrubbing device for road cleaning according to this utility model. Figure 2

[0032] Figure 3 This is a schematic diagram of the connection between the brush assembly and the floating mechanism of this utility model.

[0033] Figure 4 This is a schematic diagram of the connection between the brush assembly and the floating mechanism of this utility model.

[0034] Figure 5 This is a schematic diagram of the water circuit module connection of this utility model.

[0035] Figure 6 This is a schematic diagram of the installation of the anti-collision module of the base frame mounting machine of this utility model.

[0036] Figure 7 This is a schematic diagram of the anti-collision mechanism of this utility model.

[0037] Figure 8 This is a schematic diagram of the water absorption module structure of this utility model.

[0038] The reference numerals used in the attached figures are as follows:

[0039] Base frame 1; diagonal tie rod 11; brush plate assembly 2; brush plate 21; brushless motor 22; baffle 23; floating mechanism 3; mounting plate 31; spring 32; guide post 33; fixing plate 34; hydraulic module 4; mounting bracket 41; hydraulic proportional valve group 42; drive component 43; pressure sensor 44; energy storage device 45; water circuit module 5; clean water pump 51; detergent tank 52; detergent pump 53; connecting pipe 54; nozzle 55; anti-collision bar 6; rotating shaft 61; mounting block 62; sensor 1 63; sensing plate 64; reset spring 65; squeegee 7; suction pipe 71; squeegee strip 72. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings.

[0041] like Figure 1-8 As shown, this utility model discloses a floor cleaning device for road surface cleaning, comprising:

[0042] Base frame 1;

[0043] The brushing module has multiple brushing components 2, and the brushing components 2 are connected to the base frame 1 through a floating mechanism 3.

[0044] Hydraulic module 4 is connected to the base frame 1, and adjusts the height of the base frame 1 to provide pressure to the brush module;

[0045] Water module 5, including nozzle 55, is used for cleaning the ground.

[0046] The advantages of adopting the above technical solution are that it enables pressure adjustment of the brush module, allowing it to better conform to different road surfaces and improve cleaning effectiveness. The height of the base frame 1 is adjusted via the hydraulic module 4, thereby precisely controlling the contact pressure of the brush module and avoiding the problems of limited and unstable pressure adjustment levels in traditional methods. It maintains stable and appropriate pressure when facing road surfaces of varying roughness and smoothness. Simultaneously, the floating mechanism 3 of the brush module further enhances the adaptability of the floor scrubbing device to different road surfaces. When the brush assembly 2 encounters road bumps or depressions, the floating mechanism 3 allows the brush assembly 2 to float up and down, maintaining good contact with the road surface at all times. For example, on roads in some older residential areas, where the road surface may have potholes and unevenness, this floating mechanism 3 allows the brush assembly 2 to flexibly respond, ensuring comprehensive cleaning.

[0047] In some implementation schemes, such as Figure 3-4As shown, the floating mechanism 3 includes: a support connection assembly including a mounting plate 31 and a fixing plate 34; an elastic element 32 is a spring; the fixing plate 34 is fixedly installed on the base frame 1, and has holes for the guide post 33 to pass through; the guide post 33 is installed vertically and its top is fixed on the fixing plate 34; the mounting plate 31 is used to install the brush assembly 2; the brush assembly 2 is locked and fixed on the mounting plate 31, one end of which is hinged to the base frame 1, and the other end can float up and down along the guide post 33; the spring 32 is sleeved on the guide post 33 and is located between the mounting plate 31 and the fixing plate 34; after the brush 21 floats upward, the spring 32 is compressed; after compression, the spring 32 returns to its original position, so that the brush assembly 2 returns to its original position; when working on uneven road surfaces, the floating mechanism 3 uses the extension and contraction characteristics of the internal floating spring 32 to make the entire structure float up and down around the hinge point, ensuring that the brush 21 is in close contact with the road surface, improving the adaptability of the floor scrubbing device to different road surfaces, and ensuring the best cleaning effect.

[0048] In some implementation schemes, such as Figure 2 As shown, the hydraulic module 4 includes: a mounting frame 41, a hydraulic proportional valve group 42, a drive component 43, a pressure sensor 44, and an energy storage device 45. The drive component 43 is a hydraulic cylinder. The hydraulic proportional valve group 42 and the energy storage device 45 are both mounted on the mounting frame 41. The pressure sensor 44 is connected to the hydraulic proportional valve group 42 and is used to sense the pressure of the internal hydraulic oil. The hydraulic cylinder is connected to the mounting frame 41 and the base frame 1. The hydraulic cylinder is symmetrically installed, and its output end is hinged to the base frame 1. The main body is also hinged to the mounting frame 41. The hydraulic cylinder is connected to the hydraulic proportional valve group 42 and the energy storage device 45 through pipelines. The pressure sensor 44 senses the system oil pressure. After the brush disc 21 descends and contacts the ground, the hydraulic cylinder will continue to apply pressure to increase the ground contact pressure of the brush disc 21. The pressure sensor 44 provides real-time feedback of the system oil pressure as a pressure regulation closed loop. When the set pressure is reached, the hydraulic proportional valve closes the descent oil circuit to prevent the pressure from continuing to exceed the allowable ground contact pressure. When encountering uneven or undulating road surfaces, fluctuations will occur between the brush disc 21 and the ground. To avoid affecting the ground contact pressure, the hydraulic cylinder stroke needs to follow suit. At this time, the accumulator plays a crucial role, promptly replenishing and recovering the system's hydraulic pressure, avoiding frequent starts of the hydraulic pump, which could affect system stability.

[0049] Furthermore, the mounting frame 41 is connected to the base frame 1 by two sets of parallel diagonal braces 11. The two ends of the diagonal braces 11 are hinged, and the length of the diagonal braces 11 is adjustable. The diagonal braces 11 are installed at an angle. The auxiliary hydraulic module 4 is used to fix the base frame 1. The diagonal braces 11 are also installed symmetrically. The rod body is divided into two parts: one end is a screw with external threads, and the other end is a sleeve with internal threads. By rotating the sleeve, the length of the entire diagonal brace 11 can be changed, thereby changing the height of the base frame 1.

[0050] In some implementation schemes, such as Figure 5As shown, the water circuit module 5 includes a clean water pump 51, a detergent tank 52, a detergent pump 53, and a connecting pipe 54. The detergent pump 53 is connected to the detergent tank 52 for drawing detergent. The clean water pump 51 is connected to a water tank. Both the clean water pump 51 and the detergent pump 53 are connected via the connecting pipe 54. Multiple nozzles 55 are mounted on the brush assembly 2 and connected to the connecting pipe 54, which carries clean water and detergent. During operation, the brush assembly 21 sprays a cleaning solution (a mixture of clean water and detergent in a certain proportion). Utilizing the cleaning, emulsifying, and dispersing properties of the cleaning solution, it enhances the removal of stains and improves the cleaning effect. The clean water pump 51 and the detergent pump 53 are controlled independently, allowing for arbitrary proportioning of the cleaning solution to suit different levels of dirt on the road surface. The solution is then delivered to the nozzles through its respective pipes.

[0051] In some implementation schemes, such as Figure 6-7 As shown, the floor scrubbing device also has an anti-collision mechanism, including: an anti-collision bar 6 and a mounting block 62 with a rotating shaft 61 installed. The mounting block 62 is connected to the base frame 1. The anti-collision bar 6 is arc-shaped and installed on the front side of the entire device. The anti-collision bar 6 has a connector connected to the rotating shaft 61, which can rotate around the rotating shaft 61. The rotating shaft 61 is horizontally installed and rotatable. The mounting block 62 is equipped with a sensor 63, which can be a displacement sensor. Various sensors such as capacitive and inductive sensors can be used as needed. The connector is equipped with a sensing plate 64 corresponding to the sensor 63. A return spring 65 is installed between the anti-collision bar 6 and the mounting block 62. When the floor scrubbing device comes into contact with an obstacle in front, the anti-collision bar 6 rotates downward around the rotating shaft 61. The sensor 63 and the sensing plate 64 are misaligned and lose the sensing signal, triggering the collision sensing. When the floor scrubbing device moves away from the obstacle, the anti-collision bar 6 returns to its initial state under the action of the return spring 65. The sensor 63 recognizes the initial signal and deactivates the collision sensing.

[0052] In some implementation schemes, such as Figure 8As shown, the floor scrubbing device also includes a water absorption module, comprising: a squeegee 7 with a suction pipe 71 mounted on it; a water-absorbing strip 72 and wheels at the bottom of the squeegee 7; the squeegee 7 has an arc-shaped surface and is positioned on the side of the brush assembly 2; the water-absorbing strip 72 is positioned on the side away from the brush assembly 2 and is fixedly installed, partially enclosing the side of the squeegee 7; it has a certain degree of elasticity and rigidity; the arc-shaped design helps guide wastewater to the suction pipe 71; the squeegee 7 is supported by the wheels and forms a chamber with the fixed water-absorbing strip 72; a negative pressure device is added at the rear end, and the wastewater is sucked up from the road surface through the suction pipe 71; the wastewater is then transported by the suction pipe 71 to a dedicated wastewater storage tank for subsequent processing. This water absorption module can quickly and effectively collect the wastewater after cleaning, keeping the ground dry and preventing safety hazards such as pedestrians slipping. The water absorption module and base frame can be connected to a cleaning vehicle or a handheld pole, suitable for different indoor and outdoor usage scenarios.

[0053] In some implementations, the brush assembly 2 includes a brush 21 and a brushless motor 22 connected to the brush 21. The brushless motor 22 drives the brush 21 to rotate. The brush 21 has brushes that perform a cleaning function during rotation. The brush 21 obtains rotational power from the brushless motor 22 to scrub the floor and remove stains. The brushless motor 22 can provide high speed and torque while maintaining low temperature rise and low noise. The brush 21 has a 50% higher speed than conventional products, improving cleaning efficiency.

[0054] Furthermore, there are three brush disc components 2. The distribution of the three brush disc components 2 can be varied, such as side by side, one in front and two in the back; or two in front and one in the back. The three-brush disc structure greatly improves the cleaning efficiency. Compared with the conventional single-brush disc and double-brush disc structures, the brush disc coverage area is larger, the cleaning width is wider, and the cleaning operation speed can be increased by 40%.

[0055] Furthermore, baffles 23 are provided on both sides of the brush assembly 2. The baffles 23 are symmetrically arranged and have relatively arranged bent parts. The tail of the baffle 23 is bent inward, which can better guide the sewage and impurities after washing to gather in the middle of the brush assembly 2, which facilitates the subsequent sewage collection and plays a role in preventing splashing. The baffle 23 is provided with strip-shaped holes and is fixed to the base frame 1 with screws, so that its height can be adjusted.

[0056] This application has the following advantages:

[0057] 1. Three-brush disc structure + 22 brushless motor drive, high coverage + high speed, effectively improving cleaning efficiency;

[0058] 2. The floating brush mechanism 3 effectively improves road surface adaptability;

[0059] 3. A closed-loop control system consisting of a hydraulic proportional valve, an energy storage device 45, and a pressure sensor 44 ensures that the contact pressure of the floor scrubbing device is controllable, stable, and reliable.

[0060] 4. The water circuit module 5, through the separate control of the clean water pump 51 and the detergent pump 53, can adjust the washing liquid ratio according to different degrees of dirt on the road surface, thereby improving the cleaning effect.

[0061] 5. The anti-collision mechanism can promptly sense obstacles and cause the floor scrubbing device to retreat, and it also has an automatic reset function, ensuring the safety and convenience of equipment operation;

[0062] In practical applications, the advantages of this floor cleaning device become even more apparent. Outdoor road cleaning or parking lots in large shopping malls presents challenges due to the large surface area and potential for various stains such as oil and dust. Thirdly, the brush disc structure and brushless motor 22 drive the device to quickly cover large areas, achieving efficient cleaning at high speeds and significantly reducing cleaning time. Simultaneously, the brush disc floating mechanism 3 adapts to uneven surfaces in parking lots, such as small bumps or depressions, ensuring the brush disc 21 maintains good contact with the ground for a thorough cleaning effect.

[0063] For some factory workshop floors, there may be heavy oil stains and industrial dust. In this case, the water module 5 plays an important role, enhancing the cleaning ability by adjusting the appropriate ratio of detergent and water. Moreover, the closed-loop control system of the hydraulic module 4 ensures that the brush 21 applies stable and appropriate pressure to the ground, effectively removing stubborn stains.

[0064] In densely populated areas such as hospitals and schools, floor cleaning not only needs to be clean but also dry to prevent pedestrians from slipping. The water-absorbing module of this floor scrubbing device effectively meets this need, quickly absorbing the wastewater after cleaning and keeping the floor dry. Furthermore, the anti-collision mechanism prevents collisions with pedestrians or other obstacles in high-traffic environments, ensuring the safety of both the equipment and personnel.

[0065] Furthermore, with the continuous development of urban roads, road conditions are becoming increasingly complex. This floor scrubbing device, with its numerous advantages, can adapt to different types of urban roads, such as asphalt and concrete surfaces. Whether for routine cleaning and maintenance or to handle sudden pollution incidents, it can efficiently and reliably complete cleaning tasks, contributing to the cleanliness and beauty of the city.

[0066] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A floor scrubbing device for road cleaning, characterized in that, include: Base frame (1); The brush module has multiple brush components (2), which are connected to the base frame (1) via a floating mechanism (3); The hydraulic module (4) is connected to the base frame (1) to adjust the height of the base frame (1) and provide pressure to the brush module; Water module (5), including nozzle (55), for cleaning the ground; The floating mechanism (3) includes a support connection assembly and a guide post (33). The brush assembly (2) is mounted on the support connection assembly. One end of the support connection assembly is hinged to the base frame (1), and the other end floats up and down along the guide post (33).

2. The floor cleaning device for road surface cleaning according to claim 1, characterized in that, The hydraulic module (4) includes a mounting bracket (41) and a drive component (43), the drive component (43) connecting the mounting bracket (41) and the base frame (1), and the drive component (43) controlling the lifting and lowering of the base frame (1).

3. The floor cleaning device for road surface cleaning according to claim 1, characterized in that, The water circuit module (5) includes a clean water tank, a detergent tank (52) and a connecting pipe (54). The clean water tank and the detergent tank (52) are both connected to the nozzle (55) through the connecting pipe (54).

4. The floor cleaning device for road surface cleaning according to claim 1, characterized in that, The floor cleaning device also has an anti-collision mechanism, including: an anti-collision bar (6) and a mounting block (62) with a rotating shaft (61) installed. The mounting block (62) is connected to the base frame (1). The anti-collision bar (6) has a connector connected to the rotating shaft (61) and can rotate around the rotating shaft (61). The mounting block (62) is equipped with a sensor (63), and the connector is equipped with a sensing plate (64) corresponding to the sensor (63).

5. The floor cleaning device for road surface cleaning according to claim 4, characterized in that, A return spring (65) is installed between the anti-collision bar (6) and the mounting block (62).

6. The floor cleaning device for road surface cleaning according to claim 1, characterized in that, The floor cleaning device also has a water absorption module, including: a water squeegee (7) with a suction pipe (71) on it, and a water-absorbing strip (72) and a walking wheel at the bottom of the water squeegee (7). The water squeegee (7) has an arc-shaped surface and is located on the side of the brush assembly (2). The water-absorbing strip (72) is located on the side away from the brush assembly (2).

7. The floor cleaning device for road surface cleaning according to claim 2, characterized in that, The mounting bracket (41) is connected to the base frame (1) by two sets of parallel inclined tie rods (11), the two ends of the inclined tie rods (11) are hinged, and the length of the inclined tie rods (11) can be adjusted.

8. The floor cleaning device for road surface cleaning according to claim 1, characterized in that, The brush assembly (2) includes a brush (21) and a brushless motor (22) connected to the brush (21).

9. The floor cleaning device for road surface cleaning according to claim 1, characterized in that, The brush assembly (2) is also provided with baffles (23) on both sides. The baffles (23) are symmetrically arranged and have oppositely arranged bent parts. The height of the baffles (23) is adjustable.

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