Adjustable rolling brush pressing limiting device

Abstract

The invention relates to the technical field of limiting devices, in particular to an adjustable rolling brush downward-pressing limiting device which comprises a rolling brush mounting frame, a brush body downward-pressing mechanism capable of adapting to rolling brushes of various models is movably mounted on the rolling brush mounting frame, and a self-adaptive adjusting mechanism used for avoiding road obstacles and a splash-proof shielding mechanism are arranged on the brush body downward-pressing mechanism. The distance between the splash-proof shielding mechanism and the rolling brush can be freely adjusted, and the brush body pressing mechanism comprises lead screw assemblies symmetrically arranged on the two sides of the rolling brush mounting frame. By arranging the self-adaptive adjusting mechanism and utilizing the elastic buffering design of the sliding rod assembly and the pressing spring, the rolling brush body can be automatically finely adjusted and lifted according to the unevenness of the ground or the height of an obstacle, when encountering a protruding obstacle, the rolling brush can float upwards to avoid, rigid impact is reduced, and after the obstacle is climbed over, the rolling brush can be automatically adjusted. And the pressure of the spring can restore stable contact, so that the abrasion of the rolling brush can be effectively reduced, the service life is prolonged, and the mechanical damage in the cleaning process can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of limiting devices, and particularly to an adjustable downward pressing limiting device for a rolling brush. Background Art

[0002] In the field of environmental sanitation cleaning, as a core working component, the working performance of the rolling brush device will directly affect the cleaning efficiency and cleaning quality of the cleaning operation.

[0003] However, most of the rolling brushes in the prior art adopt a mechanical fixed limiting structure, which cannot realize dynamic pressure adjustment during the operation process, resulting in problems such as excessive wear or incomplete cleaning when encountering uneven ground. Moreover, lacking an effective obstacle response mechanism, when the rolling brush rigidly collides with obstacles such as curbs and manhole covers, it is very easy to cause the bristles to break or the driving mechanism to be damaged. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an adjustable downward pressing limiting device for a rolling brush, which solves the technical problems of limited pressure adjustment and poor adaptability of the rolling brush limiting device in the prior art, and has the advantages of being able to quickly adjust the pressure and having an effective obstacle response mechanism.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: an adjustable downward pressing limiting device for a rolling brush, including a rolling brush mounting frame, on which a brush body downward pressing mechanism capable of adapting to various models of rolling brushes is movably installed. The brush body downward pressing mechanism is provided with an adaptive adjustment mechanism and a splash-proof shielding mechanism for avoiding road surface obstacles. The adaptive adjustment mechanism can adjust the height of the brush body downward pressing mechanism according to the road surface conditions, and the distance between the splash-proof shielding mechanism and the rolling brush can be freely adjusted. When cleaning the road surface, the brush body downward pressing mechanism will automatically move downward and contact the road surface. If the road surface is uneven or there are immovable obstacles during the movement, the adaptive adjustment mechanism will adjust the height of the brush body downward pressing mechanism, thereby preventing the rolling brush from being damaged by hard contact with the obstacles.

[0006] Preferably, the brush body downward pressing mechanism includes screw rod assemblies symmetrically arranged on both sides of the rolling brush mounting frame. The screw rod assemblies are threadedly connected with lifting sliders. A first mounting seat and a second mounting seat are respectively arranged on the two lifting sliders. A rolling brush body is detachably installed between the first mounting seat and the second mounting seat. When the lifting slider moves vertically downward, the rolling brush body will contact the ground, and then the ground will be cleaned during the rotation of the rolling brush body.

[0007] Preferably, a limiting air cylinder is arranged on the second mounting seat, and an inflation interface is communicated with the limiting air cylinder. When inflating the limiting air cylinder through the inflation interface, the second mounting seat will move closer to the first mounting seat, thereby adjusting the distance between the first mounting seat and the second mounting seat.

[0008] Preferably, the screw assembly consists of two lifting screws, which are connected by gears and a synchronous belt transmission. When the lifting screw rotates around its own axis, the two lifting sliders will move synchronously in the vertical direction.

[0009] Preferably, the adaptive adjustment mechanism includes an L-shaped mounting seat fixedly mounted on the lifting slider, a slide rod assembly is slidably connected to the L-shaped mounting seat, a pressure spring is provided on the outer sleeve of the slide rod assembly, and a drive motor for driving the roller brush body to rotate is fixedly mounted on the first mounting seat. When the slide rod assembly moves in the vertical direction, the height of the roller brush body will be fine-tuned to avoid the roller brush from colliding with uneven ground.

[0010] Preferably, the upper end of the slide rod assembly is provided with an anti-falling limit flange, and the lower end of the slide rod assembly is fixedly connected to the first mounting seat and the second mounting seat. When there are obstacles on the ground that are difficult to clear, the roller brush body can flip over the obstacles.

[0011] Preferably, the anti-splash shielding mechanism includes a displacement sensor fixedly mounted on the roller brush mounting frame, a linkage horizontal plate fixedly mounted between the two lifting sliders, and a cover assembly rotatably connected to the linkage horizontal plate. During road cleaning, the cover assembly can shield the top of the limit air cylinder, thereby preventing gravel and dust from splashing.

[0012] Preferably, the cover assembly includes a protective cover movably mounted on the linkage horizontal plate, and a driving member for driving the protective cover to rotate is provided inside the linkage horizontal plate. After cleaning is completed, the protective cover will rotate upward under the action of the driving member, thereby facilitating the staff to clean the roller brush and the protective cover.

[0013] By means of the above technical solution, the present invention provides an adjustable roller brush downward pressure limiting device, which has at least the following beneficial effects:

[0014] 1. The present invention sets an adaptive adjustment mechanism and utilizes the elastic buffer design of the slide rod assembly and the pressure spring. The roller brush body can automatically adjust the rise and fall according to the unevenness of the ground or the height of the obstacle. When encountering a raised obstacle, the roller brush can float upward to avoid it, reducing rigid impact. After crossing the obstacle, the spring pressure will restore stable contact, which can effectively reduce the wear of the roller brush, extend its service life, and reduce mechanical damage during the cleaning process.

[0015] 2. The present invention provides an adaptive adjustment mechanism to ensure that the sanitation vehicle can smoothly cross irregular obstacles such as curbs, manhole covers, potholes, etc. during the mobile cleaning process, which can effectively avoid cleaning interruptions caused by jamming or bouncing, and ensure the continuity and consistency of the cleaning operation. It is particularly suitable for efficient cleaning in complex environments such as urban roads and industrial sites.

[0016] 3. The present invention sets a brush body downward pressure mechanism, utilizes the mutual cooperation between the limit air cylinder and the second mounting seat, and drives the second mounting seat to move horizontally through air pressure, so as to quickly adjust the installation spacing of the roller brush body and adapt to the replacement needs of roller brushes of different lengths. Moreover, the use of a screw rod to adjust the height of the roller brush body can more accurately control the downward pressure of the roller brush on the ground.

[0017] 4. The present invention sets a brush body pressing mechanism, and the two screw rods realize the synchronous movement of the two lifting sliders through gears and synchronous belt transmission, which can ensure that the roller brush body remains horizontal during the pressing and lifting process, and can effectively avoid the roller brush eccentric wear or uneven cleaning caused by the asynchronous lifting of the two sides, greatly enhancing the stability and reliability of the cleaning device, and is suitable for the efficient operation of mobile cleaning equipment such as sanitation vehicles.

[0018] 5. The present invention provides a splash-proof shielding mechanism, utilizes the mutual cooperation between the cover assembly and the displacement sensor, monitors the height change of the roller brush in real time through the displacement sensor, and dynamically adjusts the shielding position by linking the cover assembly, thereby forming an effective protective barrier during the cleaning process, thereby blocking flying gravel, mud and dust, and preventing them from impacting the limit air cylinder or other precision components. This design not only protects the internal structure of the equipment, but also reduces the impact of dust on the surrounding environment and operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 A perspective view of the overall structure of the present invention;

[0021] Figure 2 Schematic diagram of the structure of the brush body pressing mechanism in the present invention;

[0022] Figure 3 It is a schematic diagram of the coordination of some structures in the present invention;

[0023] Figure 4 Schematic diagram of the structure of the linkage horizontal plate in the present invention;

[0024] Figure 5 Schematic diagram of the structure of the adaptive adjustment mechanism in the present invention;

[0025] Figure 6 It is a structural schematic diagram of the cover plate assembly in the present invention.

[0026] In the figure: 1. Rotating brush mounting bracket; 2. Brush body pressing mechanism; 201. Lead screw assembly; 202. Lifting slider; 203. First mounting seat; 204. Second mounting seat; 205. Limit air cylinder; 206. Rotating brush body; 207. Inflation interface; 3. Adaptive adjustment mechanism; 301. L-shaped mounting seat; 302. Slide bar assembly; 303. Pressing spring; 304. Driving motor; 4. Splash-proof shielding mechanism; 401. Displacement sensor; 402. Linking cross plate; 403. Cover plate assembly. Specific implementation mode

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1

[0029] Most of the rotating brushes in the prior art adopt a mechanical fixed limit structure, which cannot realize the dynamic pressure adjustment during the operation process, resulting in problems such as excessive wear or incomplete cleaning when encountering uneven ground. Moreover, there is a lack of an effective obstacle response mechanism. When the rotating brush collides rigidly with obstacles such as curbs and manhole covers, it is very easy to cause the bristles to break or the driving mechanism to be damaged. To solve this technical defect existing in the prior art, as Figures 1 - 5 shown, this embodiment proposes an adjustable rotating brush pressing and limiting device, including a rotating brush mounting bracket 1, which can quickly adjust the installation distance of the rotating brush body 206 to adapt to the replacement requirements of rotating brushes of different lengths. A brush body pressing mechanism 2 that can adapt to various types of rotating brushes is movably installed on the rotating brush mounting bracket 1. An adaptive adjustment mechanism 3 for avoiding road surface obstacles and a splash-proof shielding mechanism 4 are provided on the brush body pressing mechanism 2. The adaptive adjustment mechanism 3 can adjust the height of the brush body pressing mechanism 2 according to the road surface conditions. The distance between the splash-proof shielding mechanism 4 and the rotating brush can be freely adjusted. When cleaning the road surface, the brush body pressing mechanism 2 will automatically move downward and contact the road surface. If the road surface is uneven or there are immovable obstacles during the movement, the adaptive adjustment mechanism 3 will adjust the height of the brush body pressing mechanism 2 to avoid damage to the rotating brush due to hard contact with the obstacles.

[0030] Specifically, the brush body pressing mechanism 2 includes screw rod assemblies 201 symmetrically arranged on both sides of the roller brush mounting frame 1. The screw rod assemblies 201 are composed of two lifting screw rods, and the two lifting screw rods are connected by gears and synchronous belts. When the lifting screw rod rotates around its own axis, the two lifting sliders 202 will move synchronously in the vertical direction. The screw rod assemblies 201 are threadedly connected with the lifting sliders 202. A first mounting seat 203 and a second mounting seat 204 are respectively arranged on the two lifting sliders 202. A roller brush body 206 is detachably installed between the first mounting seat 203 and the second mounting seat 204. When the lifting slider 202 moves vertically downward, the roller brush body 206 will contact the ground. Subsequently, during the rotation of the roller brush body 206, the ground will be cleaned. A limiting air cylinder 205 is arranged on the second mounting seat 204, and an inflation interface 207 is communicated with the limiting air cylinder 205. When the limiting air cylinder 205 is inflated through the inflation interface 207, the second mounting seat 204 will move towards the first mounting seat 203, thereby adjusting the distance between the first mounting seat 203 and the second mounting seat 204.

[0031] According to the above content, during the use of the device, the inflation interface 207 will be connected to an air pump. After the staff installs one end of the roller brush body 206 on the first mounting seat 203, the second mounting seat 204 will move towards the first mounting seat 203 under the push of air pressure. Subsequently, the other end of the roller brush body 206 will contact the second mounting seat 204.

[0032] Subsequently, the lifting slider 202 will move vertically downward under the drive of the screw rod assembly 201, so that the roller brush body 206 contacts the ground. Next, as the sanitation vehicle moves, the roller brush body 206 will automatically clean the ground.

[0033] In this embodiment, by setting the brush body pressing mechanism 2 and utilizing the mutual cooperation between the limiting air cylinder 205 and the second mounting seat 204, the second mounting seat 204 is driven to move horizontally by air pressure, which can quickly adjust the installation distance of the roller brush body 206 to meet the replacement requirements of rollers of different lengths. Moreover, by using a screw rod to adjust the height of the roller brush body 206, the downward pressure of the roller brush on the ground can be controlled more precisely. In addition, in this embodiment, by setting the brush body pressing mechanism 2, the two screw rods drive the two lifting sliders 202 to move synchronously through gears and synchronous belts, which can ensure that the roller brush body 206 remains horizontal during the downward pressing and lifting processes, effectively avoiding problems such as uneven wear or uneven cleaning of the roller brush caused by asynchronous lifting on both sides, greatly enhancing the stability and reliability of the cleaning device, and being suitable for the efficient operation of mobile cleaning equipment such as sanitation vehicles.

[0034] Embodiment Two

[0035] In order to enable the device to have a good obstacle response mechanism, on the basis of Embodiment One, asFigures 1 - 5 As shown, this embodiment is provided with an adaptive adjustment mechanism 3. Specifically, the adaptive adjustment mechanism 3 includes an L-shaped mounting seat 301 fixedly mounted on the lifting slider 202, and a slide rod assembly 302 is slidably connected to the L-shaped mounting seat 301. The upper end of the slide rod assembly 302 is provided with an anti-falling limit flange, and the lower end of the slide rod assembly 302 is fixedly connected to the first mounting seat 203 and the second mounting seat 204. When there are obstacles that are difficult to clear on the ground, the roller brush body 206 can flip over the obstacle. The outer sleeve of the slide rod assembly 302 is provided with a pressing spring 303, and the first mounting seat 203 is fixedly mounted with a driving motor 304 for driving the roller brush body 206 to rotate. When the slide rod assembly 302 moves in the vertical direction, it will fine-tune the height of the roller brush body 206, thereby avoiding the roller brush from colliding with uneven ground.

[0036] As can be seen from the above content, when cleaning the road surface, the device will move horizontally along the road surface along with the sanitation vehicle. During the movement, the roller brush body 206 will rotate rapidly under the action of the drive motor 304.

[0037] When the ground is uneven or there is an obstacle that is difficult to move, the roller brush body 206 will move upward a certain distance during contact with the ground or the obstacle. After the roller brush body 206 rolls over the obstacle, the roller brush body 206 will contact the ground again under the action of the pressing spring 303.

[0038] This embodiment sets an adaptive adjustment mechanism 3, utilizes the elastic buffer design of the slide rod assembly 302 and the pressing spring 303, and the roller brush body 206 can automatically fine-tune the rise and fall according to the unevenness of the ground or the height of the obstacle. When encountering a raised obstacle, the roller brush can float upward to avoid it, reducing rigid impact. After crossing the obstacle, the spring pressure will restore it to stable contact, which can effectively reduce the wear of the roller brush and extend its service life, and reduce mechanical damage during the cleaning process; moreover, this embodiment sets an adaptive adjustment mechanism 3 to ensure that the sanitation vehicle can smoothly cross irregular obstacles such as curbs, manhole covers, potholes, etc. during the mobile cleaning process, which can effectively avoid cleaning interruptions caused by jamming or bouncing, and ensure the continuity and consistency of the cleaning operation. It is particularly suitable for efficient cleaning in complex environments such as urban roads and industrial sites.

[0039] Embodiment 3

[0040] In order to form an effective protective barrier during the cleaning process to prevent the splashing gravel, mud and sand from impacting the limit air cylinder 205 or other precision parts, based on the above embodiment, as Figure 1 and Figure 6As shown in the figure, a splash-proof shielding mechanism 4 is provided in this embodiment. Specifically, the splash-proof shielding mechanism 4 includes a displacement sensor 401 fixedly installed on the brush mounting bracket 1. A linkage cross plate 402 is fixedly installed between two lifting sliders 202. A cover plate assembly 403 is rotatably connected to the linkage cross plate 402. During the process of cleaning the road surface, the cover plate assembly 403 can shield the upper part of the limiting air cylinder 205, thereby preventing gravel and dust from splashing. The cover plate assembly 403 includes a protective cover movably installed on the linkage cross plate 402. A driving member for driving the rotation of the protective cover is provided inside the linkage cross plate 402. After the cleaning is completed, the protective cover will rotate upward under the action of the driving member, which is convenient for the staff to clean the brush and the protective cover.

[0041] According to the above content, it can be seen that when cleaning the road surface, the cover plate assembly 403 will shield the upper part of the brush body 206, which can effectively prevent gravel from splashing during the cleaning process.

[0042] Moreover, the cover plate assembly 403 can be automatically opened and closed, which is convenient for cleaning and maintenance.

[0043] In this embodiment, by setting the splash-proof shielding mechanism 4 and using the mutual cooperation between the cover plate assembly 403 and the displacement sensor 401, the displacement sensor 401 is used to monitor the height change of the brush in real time, and the cover plate assembly 403 is linked to dynamically adjust the shielding position, so as to form an effective protective barrier during the cleaning process, thereby blocking the flying gravel, sand and dust and preventing them from impacting the limiting air cylinder 205 or other precision components. This design not only protects the internal structure of the equipment, but also reduces the impact of dust on the surrounding environment and operators.

[0044] The control method of the present invention is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming of those skilled in the art. The provision of power also belongs to the common knowledge in this field. And the present invention is mainly used to protect mechanical devices, so the control method and circuit connection of the present invention will not be explained in detail.

[0045] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable downward pressing limit device for a roller brush, comprising a roller brush mounting frame (1), characterized in that: The roller brush mounting frame (1) is movably mounted with a brush body pressing mechanism (2) that can adapt to various types of roller brushes. The brush body pressing mechanism (2) is provided with an adaptive adjustment mechanism (3) for avoiding road obstacles and an anti-splash shielding mechanism (4). The adaptive adjustment mechanism (3) can adjust the height of the brush body pressing mechanism (2) according to road conditions, and the distance between the anti-splash shielding mechanism (4) and the roller brush can be freely adjusted. The brush body pressing mechanism (2) comprises a screw assembly (201) symmetrically arranged on both sides of the roller brush mounting frame (1); a lifting slider (202) is threadedly connected to the screw assembly (201); a first mounting seat (203) and a second mounting seat (204) are respectively provided on the two lifting sliders (202); a limiting air cylinder (205) is provided on the second mounting seat (204); and an inflation interface (207) is connected to the limiting air cylinder (205).

2. The adjustable roller brush downward pressing limit device according to claim 1, characterized in that: A roller brush body (206) is detachably mounted between the first mounting seat (203) and the second mounting seat (204).

3. The adjustable downward limit device for the rolling brush according to claim 1, wherein: The screw assembly (201) consists of two lifting screws, which are connected via gears and a synchronous belt transmission.

4. The adjustable down-pressure limit device for the rolling brush according to claim 1, wherein: The adaptive adjustment mechanism (3) comprises an L-shaped mounting seat (301) fixedly mounted on a lifting slider (202); a slide bar assembly (302) is slidably connected to the L-shaped mounting seat (301); a pressing spring (303) is sleeved on the outside of the slide bar assembly (302); and a driving motor (304) for driving the roller brush body (206) to rotate is fixedly mounted on the first mounting seat (203).

5. The adjustable downward limit device for the rolling brush according to claim 4, characterized in that: The upper end of the slide bar assembly (302) is provided with a limiting flange to prevent it from falling off, and the lower end of the slide bar assembly (302) is fixedly connected to the first mounting seat (203) and the second mounting seat (204).

6. The adjustable downward pressing limit device for the rolling brush according to claim 1, wherein: The splash-proof shielding mechanism (4) comprises a displacement sensor (401) fixedly mounted on the roller brush mounting frame (1); a linkage transverse plate (402) fixedly mounted between the two lifting sliders (202); and a cover plate assembly (403) rotatably connected to the linkage transverse plate (402).

7. The adjustable downward limit device for the rolling brush according to claim 6, wherein: The cover plate assembly (403) comprises a protective cover movably mounted on the linkage transverse plate (402), and a driving member for driving the protective cover to rotate is provided inside the linkage transverse plate (402).

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