Cleaning trolley for rail cleaning

Abstract

The invention relates to a cleaning trolley for cleaning a track, which comprises a bracket, rollers are rotatably mounted on the bracket, and the cleaning trolley runs on the track by means of the rollers; the first rolling brush mechanism and the second rolling brush mechanism are rotatably mounted on the bracket and are used for cleaning the track; the motor is configured to be used for driving the first rolling brush mechanism and the second rolling brush mechanism to be switched between the working state and the standby state of the sweeping trolley; in the working state of the sweeping trolley, the first rolling brush mechanism and the second rolling brush mechanism are driven to be connected with the track and sweep the track. And in the standby state of the cleaning trolley, the first rolling brush mechanism and the second rolling brush mechanism are driven to be separated from the rail respectively.

Description

Technical Field

[0001] The invention relates to the technical field of fixed track inspection and inspection robots, and in particular to a cleaning trolley used for track cleaning. Background Art

[0002] Inspection work at long-distance or complex sites such as pipe corridors and coal mines is the basis and important guarantee for site safety. Due to the large number of monitoring items and long lines, especially the harsh environmental conditions, strong closure, many structures and inconvenient communication of ultra-long pipe corridors, it is difficult to inspect the site status manually, the feasibility is extremely limited, and it is difficult to effectively ensure the personal safety of inspectors. Since inspection robots have basic characteristics such as perception, decision-making, and execution, they can assist or even replace humans to complete the dangerous, heavy and complex inspection work, improving work efficiency and quality.

[0003] In the existing rail inspection robot system, the inspection robot device generally runs on the rail as a whole for inspection. Since the inspection robot device may need to work under certain harsh working conditions, such as in mines, underground, places with a lot of flammable dust, etc., where there are strict explosion-proof standards. In such environments, some application environments are relatively harsh, for example, there are too much dust, dust, impurities, moisture, water vapor, etc., which will have an adverse effect on the rail and the inspection robot after a period of use, because they will adhere to or deposit on the rail, especially on the top or above of the rail, and of course also on the side, etc. As time goes by, they will affect the normal use of the inspection robot, for example, the drive device will appear unstable operation, shaking, swinging, slipping, high power consumption, noise and other unfavorable conditions on the rail, and even affect the coordination of the inspection robot and its drive device on the rail, thereby seriously affecting the stability, smoothness, reliability and safety of the rail inspection robot and its drive device on the rail, the life and use safety of the drive device and roller, and increasing the operating energy consumption and operating noise, etc., so this problem must be solved.

[0004] The industry continues to need improved inspection robots and track maintenance technologies to minimize or even eliminate the above-mentioned technical defects, and to continuously improve and maintain the performance of inspection robots and track maintainability, as well as to achieve other more technical advantages to better meet and be applied to more application scenarios.

[0005] The information included in this background section of the present specification, including any references cited herein and any description or discussion thereof, is included for technical reference purposes only and is not to be construed as subject matter that will limit the scope of the present invention. Summary of the invention

[0006] In view of the above and other concepts, the present invention is proposed. One of the main concepts of the present invention is to propose a cleaning vehicle for cleaning / sweeping and maintaining inspection tracks, and continuously maintain the working performance, reliability and service life of the inspection robot and its tracks.

[0007] One of the basic concepts of the present invention is to disclose a cleaning trolley for track cleaning, the cleaning trolley comprising: a bracket, on which a roller is rotatably mounted, and the cleaning trolley runs on the track with the aid of the roller; a first roller brush mechanism and a second roller brush mechanism rotatably mounted on the bracket, for cleaning the track; a motor, which is configured to drive the first roller brush mechanism and the second roller brush mechanism to switch between a working state and a standby state of the cleaning trolley respectively; wherein, in the working state of the cleaning trolley, the first roller brush mechanism and the second roller brush mechanism are respectively driven to engage with the track and clean the track; and, in the standby state of the cleaning trolley, the first roller brush mechanism and the second roller brush mechanism are respectively driven to disengage from the track.

[0008] According to one embodiment, the bracket is U-shaped or inverted saddle-shaped as a whole, and includes a first boom and a second boom respectively located on the left and right sides of the track; wherein at least one first upper roller and at least one first lower roller are rotatably mounted on the first boom; wherein at least one second upper roller and at least one second lower roller are rotatably mounted on the second boom; and the first upper roller and the second upper roller are configured to roll along the left and right sides respectively on the top surface of the track.

[0009] According to one embodiment, the motor is a linear motor, and the cleaning trolley further includes a first lever arm and a second lever arm pivotally mounted on the first boom and the second boom, respectively; wherein one end of the first lever arm is operably connected to one end of the linear motor, and the other end thereof is rotatably mounted on the first roller brush mechanism; wherein one end of the second lever arm is operably connected to the other end of the linear motor, and the other end thereof is rotatably mounted on the second roller brush mechanism.

[0010] According to one embodiment, the first lever arm and the second lever arm are each pivotably connected to the first suspension arm and the second suspension arm via a pivot at a mid-section position.

[0011] According to one embodiment, the one end of the first lever arm is operably connected to the one end of the linear motor via a pivot, and the one end of the second lever arm is operably connected to the other end of the linear motor via a pivot.

[0012] According to one embodiment, the linear extension motion of the linear motor drives the cleaning vehicle to enter the working state; the linear retraction motion of the linear motor drives the cleaning vehicle to enter the standby state.

[0013] According to one embodiment, in the working state of the cleaning vehicle, the first roller brush mechanism and the second roller brush mechanism are respectively in contact with the top surface and / or the side surface of the track; wherein, in the standby state of the cleaning vehicle, the first roller brush mechanism and the second roller brush mechanism are respectively out of contact with the top surface and / or the side surface.

[0014] According to one embodiment, in the working state of the cleaning vehicle, the first roller brush mechanism and the second roller brush mechanism are positioned to form overlapping cleaning areas on the track.

[0015] According to one embodiment, in the working state of the cleaning vehicle, the respective rotation axes of the first roller brush mechanism and the second roller brush mechanism are arranged at an angle relative to the longitudinal axis of the track.

[0016] According to an embodiment, the angle is in the range of 0-90 degrees, for example in the range of 10 to 80 degrees.

[0017] According to one embodiment, the first roller brush mechanism includes: a first roller brush, and a first roller brush motor driving the first roller brush to rotate; and the second roller brush mechanism includes: a second roller brush, and a second roller brush motor driving the second roller brush to rotate.

[0018] According to one embodiment, the first roller brush includes a first hub and a plurality of bristle clusters radially mounted on the first hub; and the second roller brush includes a second hub and a plurality of bristle clusters radially mounted on the second hub; wherein the first hub is directly or indirectly mounted on the motor shaft of the first roller brush motor and can be driven to rotate thereby; wherein the second hub is directly or indirectly mounted on the motor shaft of the second roller brush motor and can be driven to rotate thereby.

[0019] According to one embodiment, the cleaning trolley is self-driven; or, the cleaning trolley is connected to a driving device running on the track and can be driven by the driving device to run along the track.

[0020] According to one embodiment, the cleaning trolley is connected to the driving device via a connecting piece with a universal joint.

[0021] According to an embodiment, the track has a generally square cross-section.

[0022] According to one embodiment, the track is a track used for inspection by an inspection robot.

[0023] According to an embodiment, the drive device has a lightweight construction.

[0024] According to one embodiment, the upper rollers include: a pair of upper rollers arranged to roll close to a left edge of the track, and a pair of upper rollers arranged to roll close to a right edge of the track.

[0025] According to one embodiment, the lower rollers include: a pair of lower rollers arranged to roll close to a left edge below the track, and a pair of lower rollers arranged to roll close to a right edge below the track.

[0026] According to one embodiment, the transmission chain is fixedly mounted on the bottom surface of the track and extends along the track.

[0027] According to an embodiment, the transmission chain is fixedly mounted on the bottom surface of the track at a position near the center line by rivets or screws.

[0028] According to an embodiment, the cross section of the track is selected from one of the following: a trapezoid, a truncated isosceles triangle, a pentagon, a hexagon and a drum.

[0029] According to one embodiment, the track is a square track with a square cross section as a whole, and the upper roller and the lower roller roll on the top surface and the bottom surface of the square track respectively.

[0030] According to one embodiment, the upper roller and the lower roller are rollers with flanges.

[0031] The cleaning trolley for track cleaning of the present invention can be used in outdoor environments, underground mines, dock transportation sites, industrial production lines, long-distance track transportation occasions, long-distance belt transportation occasions, explosion-proof occasions, anti-freeze occasions, rainproof occasions or dustproof occasions, and is used to clean / sweep patrol tracks.

[0032] More embodiments of the present invention can also achieve other advantageous technical effects that are not listed one by one. These other technical effects may be partially described below and are predictable and understandable to those skilled in the art after reading the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above-mentioned features and advantages and other features and advantages of these embodiments and the manner in which they are achieved will become more apparent and embodiments of the present invention may be better understood by referring to the following description taken in conjunction with the accompanying drawings.

[0034] Figure 1 It is a three-dimensional schematic diagram of the configuration of a cleaning trolley for cleaning and inspecting tracks according to an embodiment of the present invention, showing the structure and arrangement of the cleaning trolley of an exemplary embodiment.

[0035] Figure 2 yes Figure 1 The schematic end view of the cleaning trolley of the illustrated embodiment as viewed from one end of the track schematically shows the overall configuration and more details of the cleaning trolley from another perspective. In this figure, the cleaning trolley is in working condition with its two roller brushes close to each other.

[0036] Figure 3 yes Figure 1 A schematic end view of the cleaning trolley of the illustrated embodiment as viewed from one end of the track schematically shows the overall configuration and more details of the cleaning trolley from another perspective, in which the cleaning trolley is in a standby state with its two roller brushes away from each other.

[0037] Figure 4 is with Figure 2 A similar schematic end view of a cleaning trolley schematically illustrates the cleaning trolley in operation, in which the two roller brushes of the cleaning trolley in operation are schematically illustrated as being close to each other and engaged with the track.

[0038] Figure 5 is with Figure 3 A similar schematic end view of a cleaning trolley schematically illustrates the cleaning trolley in a standby state, in which the two roller brushes of the cleaning trolley in a standby state are schematically illustrated moving away from each other and off the track.

[0039] Figure 6 A schematic top view is shown Figure 3 The cleaning trolley shown in working condition and its position on the top surface of the track, in particular, shows that the two roller brushes are each arranged obliquely relative to the longitudinal axis of the track (i.e., the longitudinal extension direction of the track), and that the two roller brushes are close to each other in working condition to partially overlap but not contact each other, thereby forming overlapping cleaning areas during operation.

[0040] Figure 7 A schematic top view is shown Figure 3 The cleaning trolley shown in the standby state and its positional relationship with the top surface of the track, at which time the two roller brushes are separated from each other and leave the track respectively without contacting it.

[0041] Figure 8 yes Figure 1 The illustrated embodiment is a three-dimensional schematic diagram of a cleaning trolley for cleaning and inspecting tracks installed on the track and connected to a driving device configured to run on the track. The driving device may be, for example, a driving device of an inspection robot.

[0042] Fig. 9 It is viewed from a bird's-eye view. Figure 8The three-dimensional schematic diagram of the cleaning trolley installed on the track in the illustrated embodiment particularly shows that the two roller brushes of the cleaning trolley in working state are respectively engaged with both the top surface and the side surface of the track, so that the top surface and the side surface of the track can be cleaned simultaneously.

[0043] Fig.10 yes Figure 1 The enlarged stereoscopic schematic diagram of one of the roller brush mechanisms of the cleaning vehicle of the illustrated embodiment particularly illustrates the structure and configuration of the roller brush mechanism. DETAILED DESCRIPTION

[0044] In the following description of the drawings and specific embodiments, the details of one or more embodiments of the present invention will be described. Other features, objects and advantages of the present invention can be clearly seen from these descriptions, drawings and claims.

[0045] It should be understood that the illustrated and described embodiments are not limited in application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the accompanying drawings. The illustrated embodiments may be other embodiments and may be implemented or executed in various ways. Each example is provided by explaining the disclosed embodiments rather than limiting them. In fact, it will be apparent to those skilled in the art that various modifications and variations may be made to the embodiments of the present invention without departing from the scope or essence of the present invention. For example, a feature illustrated or described as part of one embodiment may be used together with another embodiment to still produce another embodiment. Therefore, the present invention discloses such modifications and variations that fall within the scope of the appended claims and their equivalent elements.

[0046] Likewise, it is understood that the phrases and terms used herein are for descriptive purposes and should not be considered restrictive. The use of "include," "comprise," or "have" and variations thereof herein is intended to be open-ended to include the items listed thereafter and their equivalents and additional items.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, for ordinary technicians in this field, unless otherwise clearly stipulated and limited, the orientation and direction terms "up", "down", "left", "right", etc. associated with the drive device and its components such as the anti-sway mechanism are described and limited in combination with the orientation of the drive device of the track inspection robot in its general normal use state.

[0049] The present invention is further described and illustrated in detail below in conjunction with the accompanying drawings and specific embodiments.

[0050] Figure 1 2 is a perspective view of a cleaning trolley 10 for cleaning a patrol track 20 according to an embodiment of the present invention, showing the structure and arrangement of the cleaning trolley 10 according to an exemplary embodiment. Figure 1 As shown, the cleaning trolley 10 has two roller brush mechanisms 12 and 13, which can be installed on both sides of the track and located above the track, and can be driven by respective motors (as described in detail below) to clean the top (top surface) of the track, which is the location where dust, dirt, impurities, water vapor and other unwanted debris are most likely to accumulate. The cleaning trolley 10 also has a bracket 11 as a mounting body, and the bracket 11 is formed, for example, in a generally U-shaped or inverted saddle shape as a whole, so that when the cleaning trolley 10 is installed on the track 20, the track 20 is placed in the middle interval of the U-shaped structure of the bracket 11, and the two roller brush mechanisms 12 and 13 are respectively arranged on the left and right sides above the track 20, as shown in FIG. Figure 4-5 The bracket 11 is generally composed of a pair of suspension arms 17 and 18 and a base plate (not shown) connecting the pair of suspension arms 17 and 18, on which roller brushes, rollers, linear motors, etc. are installed, as described in detail below. Figure 1-5 As shown, the pair of suspension arms 17 and 18 are preferably arranged symmetrically on the left and right sides of the track 20, and each of them can be in the form of a plate or a strip, for example, to adapt to the shape of the track 20 and to facilitate the installation of rollers, etc., but this is not restrictive, and its shape can be changed as needed. Moreover, the bracket 11 can be integrally formed or assembled, that is, the pair of suspension arms 17 and 18 can be integrally formed with the bottom plate (for example, cast, integrally bent, etc.), or assembled with a separate bottom component to form the bracket 11.

[0051] At least one upper roller is rotatably suspended and mounted on each of the suspension arms 17 and 18, so that the cleaning vehicle 10 can run and work smoothly on the track 20. There is no particular restriction on the number of upper rollers and lower rollers, as long as the function of the cleaning vehicle can be reliably performed. The structure of the pair of suspension arms 17 and 18 and the configuration of the rollers thereon are basically the same, and are preferably arranged symmetrically. For example, Figure 1-5As shown, two upper rollers 17A and 17B are rollably suspended and installed on the suspension arm 17, and two lower rollers 17C and 17D are rollably installed. The upper rollers 17A and 17B mainly play the function of rollably suspending and guiding the cleaning trolley 10 to run on the track 20 for cleaning, and the lower rollers 17C and 17D mainly play the function of limiting, guiding and / or constraining the position and posture of the cleaning trolley 10 on the track 20, so that no matter whether the cleaning trolley 10 is in the working state or in the standby state, it is located and maintained on the track 20 with the correct posture, and does not hinder the normal operation of the track 20, itself and other mechanisms such as the driving device. It is also within the scope of the present invention to configure a single upper roller and a single lower roller for the cleaning trolley 10, but it is not preferred, because such a configuration may make it impossible for the cleaning trolley 10 to maintain a stable posture during operation. Similarly, two upper rollers 18A and 17B are rotatably suspended on the suspension arm 18, and two lower rollers (only one of which, 18C, is shown in the figure) are rotatably mounted. The bracket 11 having the pair of suspension arms 17 and 18, together with the upper rollers rotatably suspended on the top surface of the track 20 and located on the left and right sides, form a generally clamp-shaped or fork-shaped structure, such as Figure 2-5 shown.

[0052] Figure 2 , Figure 4 , Figure 6 and Fig. 9 The working state of the cleaning trolley 10 is shown, where the cleaning trolley 10 is engaged with the track 20 to perform cleaning / sweeping operations thereon.

[0053] Figure 2 yes Figure 1 The schematic end view of the cleaning trolley 10 of the illustrated embodiment as viewed from one end of the track 20 schematically shows the overall configuration and more details of the cleaning trolley 10 from another perspective. Figure 6 A schematic top view is shown Figure 3 The cleaning trolley 10 in working state and its position on the top surface of the track 20 are shown, in particular, the two roller brush mechanisms 12 and 13 are arranged obliquely relative to the longitudinal axis of the track 20 (i.e., the longitudinal extension direction of the track 20), and the two roller brush mechanisms 12 and 13 are close to each other in working state to partially overlap but not contact each other, so that overlapping cleaning areas are formed during operation, for example Figure 6 The overlapping cleaning area A is shown in the dashed box in FIG. Figure 2 In the figure, the cleaning trolley 10 is in working state, and its two roller brush mechanisms 12 and 13 are close to each other and, for example, staggered with each other, and the bristles of the roller brushes overlap each other in the direction transverse to the longitudinal axis of the track in this figure, but are not actually in contact with each other, because the two roller brush mechanisms 12 and 13 are staggered or spaced apart by a certain gap in the longitudinal extension direction of the track, such as Figure 6 As shown. In addition, according to a preferred example, in the working state, the two roller brush mechanisms 12 and 13 are arranged obliquely relative to the track, that is, the rotation axes of the two roller brush mechanisms 12 and 13 are arranged at an angle relative to the longitudinal extension direction (longitudinal axis) of the track, and the angle may be, for example, in the range of 0-90 degrees, such as in the range of 15 to 75 degrees, but there is no special limitation. In addition, in the working state of the cleaning trolley 10, the roller brush mechanisms 12 and 13 preferably each rotate in a direction to remove dust or debris from the track 20 for cleaning, which is easily understood by those skilled in the art.

[0054] Figure 4 is with Figure 2 A schematic end view of a similar cleaning trolley 10 schematically shows the cleaning trolley 10 in a working state, in which the two roller brush mechanisms 12 and 13 of the cleaning trolley 10 in a working state are close to each other and engaged with, for example, a track 20 having a substantially square cross-section. In this case, the two roller brush mechanisms 12 and 13 of the cleaning trolley 10 located on the left and right sides of the track 20 can clean the track 20 engaged therewith. Due to the presence of the overlapping cleaning area A, the cleaning trolley 10 cleans the top (top surface) of the track 20 completely and thoroughly, without cleaning dead corners.

[0055] Although the above figure only shows an example of the cleaning trolley 10 cleaning the top (top surface) of the track 20, in fact, the cleaning trolley 10 can also clean both sides (two side surfaces) of the track 20 at the same time. Fig. 9 It is viewed from a bird's-eye view. Figure 8 The three-dimensional schematic diagram of the cleaning trolley 10 of the illustrated embodiment is installed on the track 20, and particularly shows that the two roller brush mechanisms 12 and 13 of the cleaning trolley 10 in the working state are respectively engaged with both the top surface and the side surface of the track 20, so that the top surface and the side surface of the track 20 can be cleaned simultaneously. Of course, it can be understood by those skilled in the art that the cleaning trolley 10 can be configured to clean any one or more surfaces or parts of the track 20, including but not limited to the top surface, the side surface, or both, etc., as needed.

[0056] Figure 3 , Figure 5 , Figure 7 The cleaning trolley 10 is shown in a standby state, where the cleaning trolley 10 is disengaged from the track 20 and out of contact with the top and sides thereof.

[0057] Figure 3 yes Figure 1The schematic end view of the cleaning trolley 10 of the illustrated embodiment as viewed from one end of the track 20 schematically shows the overall configuration and more details of the cleaning trolley 10 from another perspective. In this figure, the cleaning trolley 10 is in a standby state, and its two roller brush mechanisms 12 and 13 are away from each other. Figure 5 is with Figure 3 A similar schematic end view of the cleaning trolley 10 schematically illustrates the cleaning trolley 10 in a standby state. Figure 5 In the figure, it is schematically shown that the two roller brush mechanisms 12 and 13 of the cleaning trolley 10 in the standby state move away from each other and leave the track 20. In order to achieve this state, the two roller brush mechanisms 12 and 13 of the cleaning trolley 10 not only move upward to leave the top of the track 20, but also move to the outside of the track to leave the side of the track 20. Figure 7 A schematic top view is shown Figure 3 The cleaning trolley 10 is shown in a standby state and its positional relationship with the top surface of the track 20. At this time, the two roller brush mechanisms 12 and 13 are separated from each other and each leaves the track 20 without contacting it.

[0058] Fig.10 yes Figure 1 The enlarged perspective schematic diagram of one of the roller brush mechanisms (e.g., roller brush mechanism 12) of the cleaning vehicle 10 of the illustrated embodiment particularly illustrates the structure and configuration of the roller brush mechanism. Both roller brush mechanisms 12 and 13 may have Fig.10 As shown in the configuration. Fig.10 As shown, the roller brush mechanism 12 may include: a roller brush consisting of a hub 122B and a plurality of bristle tufts 122A fixed on the hub 122B and extending radially in the diameter direction of the hub (shown as a plurality of brush rows 122A spaced from each other, but not limiting); a roller brush motor 121, the roller brush being rotatably mounted on the motor shaft of the roller brush motor 121 and being driven to rotate by it. The roller brush mechanism 12 may be fixed to one end of the lever arm 16, for example, via a mounting member 123, as described in detail below. Similarly, the roller brush mechanism 13 may also include: a roller brush (not shown) consisting of a hub (not shown) and a plurality of bristle tufts fixed on the hub and extending radially in the diameter direction of the hub; a roller brush motor (not shown), the roller brush being rotatably mounted on the motor shaft of the roller brush motor and being driven to rotate by it. The roller brush mechanism 13 may be fixed to one end of the lever arm 15, for example, via a mounting member, as described in detail below. These bristle tufts are preferably partial rigidity or rigid bristle tufts, thereby easily reset after deformation, and relatively not easy to damage and more durable. Roller brush mechanism 12 and 13, respective roller brush or even bristle tuft, preferably replaceable, is convenient to save cost and provides the convenience of maintenance replacement like this.

[0059] The following is combined with Figure 2-7How the cleaning vehicle 10 switches between the working state and the standby state is described in detail.

[0060] The cleaning trolley 10 may be provided with a linear motor 14, which is arranged below the bottom of the track 20 and spaced a certain distance therefrom. A linear motor, also called a linear motor, a push rod motor, a linear motor, a linear motor, a push rod motor, etc., can directly generate linear motion without going through an intermediate conversion mechanism, has a simplified structure, and has high motion accuracy. It also improves reliability, saves costs, and makes manufacturing and maintenance easier. The technology of linear motors is mature, so it will not be described in detail here. The linear motor 14 can be any suitable type available on the market, and is characterized in that the motor can be driven to perform linear motion. Specifically in the present invention, the two ends of the linear motor 14 can perform linear extension and contraction motions, such as Figure 2-5 shown.

[0061] like Figure 2-5 As shown, one end of the linear motor 14 is operably connected to the other end of the lever arm 15 (e.g., pivotally connected via a pivot 152), and the other end of the linear motor 14 is operably connected to the other end of the lever arm 16 (e.g., pivotally connected via a pivot 162). The lever arm 15 is pivotally connected to the suspension arm 18 via a pivot (fulcrum) 151 at a substantially middle section, and the lever arm 16 is pivotally connected to the suspension arm 17 via a pivot (fulcrum) 161 at a substantially middle section. Thus, the two ends of the linear motor 14, respectively located at one end of the lever arms 15 and 16, will manipulate the roller brush mechanisms 12 and 13, respectively connected to the other ends of the lever arms 15 and 16, through the so-called "seesaw" effect (or the so-called lever motion principle).

[0062] Specifically, if Figure 2 and Figure 4 As shown, in the working state of the cleaning trolley 10, the linear motor 14 is driven to extend its two ends, thereby manipulating the roller brush mechanisms 12 and 13 at the other ends to engage with the track 20 by means of the "seesaw" effect of the lever arms 15 and 16, as shown in FIG. Figure 2 and Figure 4 At this time, the cleaning trolley 10 is in working state, and the cleaning trolley 10 is engaged with the track 20 to perform cleaning / sweeping operations. When the cleaning is completed, the linear motor 14 can be driven in the reverse direction to make its two ends perform a linear motion of retracting / shortening. During the retracting motion, the two ends of the linear motor 14 respectively use the "seesaw" effect of the lever arms 15 and 16 to manipulate the corresponding roller brush mechanisms 12 and 13 at the other end to move out of engagement with the track 20, as shown in FIG. Figure 3 , Figure 5 and Figure 7As shown, at this time, the cleaning vehicle 10 is switched to a standby state, and its roller brush mechanisms 12 and 13 are disengaged from the track 20.

[0063] like Figure 2-5 As shown, the lever arms 15 and 16 can be straight rods, straight bars or straight plates. Of course, according to a preferred example, in order to better manipulate and install the lever arms 15 and 16, the lever arms 15 and 16 can be, for example, slightly bent as shown in the figure. In this way, for example, by operating the lever arms 15 and 16, the corresponding roller brush mechanisms 13 and 12 can be moved upward and outward at the same time to break contact with the top and side of the track, and can be moved in the opposite direction to enter a working state of contact with the top and side of the track.

[0064] Figure 8 yes Figure 1 The embodiment shown is a three-dimensional schematic diagram of a cleaning vehicle 10 for cleaning and inspecting a track 20, which is installed on the track 20 and connected to a driving device 30 configured to run on the track 20. The driving device 30 may be, for example, a driving device 30 of an inspection robot. Figure 8-9 As shown, the cleaning trolley 10 can be connected to the drive device 30 through a connecting piece, such as a connecting rod 19 with a universal joint, so that it can run on the track 20 together with the drive device 30. The cleaning trolley 10 can be installed at the front end and / or the rear end of the drive device 30, which are all within the scope of the present invention. The drive device 30 can be any suitable drive device that can be used for track inspection. For example, the drive devices that can be combined with the cleaning trolley 10 include: the drive device disclosed in the patent application for "Drive Device for Inspection Robot" with application number 2023209133234 filed by the applicant of the present invention on April 21, 2023, the drive device disclosed in the patent application for "Drive Device for Inspection Robot" with application number 2023104346614, or the drive device disclosed in the patent application for "Drive Device for Inspection Robot" with application number 2023209132759, etc., and the relevant contents of these patent applications are incorporated into this application by reference, just as described in this application.

[0065] Although not shown in the figures, according to another example, the cleaning vehicle 10 may also be self-propelled, that is, it may have its own driving device or driving system, which is also within the scope of the present invention.

[0066] The above describes the basic concept of the present invention in combination with the embodiments. Note that the above are only preferred embodiments of the present invention and the technical principles used. It will be understood by those skilled in the art that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A cleaning trolley for track cleaning, characterized in that: The cleaning trolley comprises: A bracket, on which a roller is rotatably mounted, and the cleaning trolley runs on the track with the aid of the roller; A first roller brush mechanism and a second roller brush mechanism rotatably mounted on the bracket, for cleaning the track; and A motor configured to drive the first roller brush mechanism and the second roller brush mechanism to switch between a working state and a standby state of the cleaning vehicle; Wherein, in the working state of the cleaning vehicle, the first roller brush mechanism and the second roller brush mechanism are each driven to engage with the track and clean the track; and Wherein, in the standby state of the cleaning vehicle, the first roller brush mechanism and the second roller brush mechanism are each driven to disengage from the track.

2. The cleaning vehicle according to claim 1, characterized in that: The bracket is generally U-shaped or inverted saddle-shaped, and includes a first suspension arm and a second suspension arm respectively located on the left and right sides of the track; Wherein, at least one first upper roller and at least one first lower roller are rotatably mounted on the first suspension arm; Wherein, at least one second upper roller and at least one second lower roller are rotatably mounted on the second suspension arm; and Wherein, the first upper roller and the second upper roller are configured to roll along the left and right sides respectively on the top surface of the track.

3. The cleaning vehicle according to claim 2, characterized in that: The motor is a linear motor, and the cleaning vehicle further comprises a first lever arm and a second lever arm pivotally mounted on the first boom and the second boom, respectively; Wherein, one end of the first lever arm is operably connected to one end of the linear motor, and the other end thereof is rotatably mounted with the first roller brush mechanism; and Wherein, one end of the second lever arm is operably connected to the other end of the linear motor, and the other end of the second lever arm is rotatably mounted on the second roller brush mechanism.

4. The cleaning vehicle according to claim 3, characterized in that: The first lever arm and the second lever arm are each pivotally connected to the first suspension arm and the second suspension arm via a pivot at a mid-section position.

5. The cleaning vehicle according to claim 4, characterized in that: The one end of the first lever arm is operably connected to the one end of the linear motor via a pivot, and the one end of the second lever arm is operably connected to the other end of the linear motor via a pivot.

6. The cleaning vehicle according to any one of claims 3 to 5, characterized in that: The linear extension motion of the linear motor drives the cleaning vehicle to enter the working state; and The linear retraction motion of the linear motor drives the cleaning vehicle to enter the standby state.

7. A cleaning vehicle according to any one of the preceding claims, characterized in that: In the working state of the cleaning trolley, the first roller brush mechanism and the second roller brush mechanism are respectively in contact with the top surface and / or the side surface of the track; and Wherein, in the standby state of the cleaning vehicle, the first roller brush mechanism and the second roller brush mechanism are respectively out of contact with the top surface and / or the side surface.

8. A cleaning vehicle according to any one of the preceding claims, characterized in that: In the working state of the cleaning vehicle, the first roller brush mechanism and the second roller brush mechanism are positioned to form overlapping cleaning areas on the track.

9. A cleaning vehicle according to any one of the preceding claims, characterized in that: In the working state of the cleaning vehicle, the respective rotation axes of the first roller brush mechanism and the second roller brush mechanism are arranged at an angle relative to the longitudinal axis of the track.

10. A cleaning vehicle according to any one of the preceding claims, characterized in that: The first roller brush mechanism includes: a first roller brush and a first roller brush motor driving the first roller brush to rotate; and the second roller brush mechanism includes: a second roller brush and a second roller brush motor driving the second roller brush to rotate.

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