Movable cleaning device for cable bridge of coal conveying system
By designing a mobile cleaning device for cable trays in coal conveying systems, and utilizing the elastic clamping mechanism of positioning blocks, springs, and pull rods, as well as a gear transmission system, efficient, safe, and automated cleaning of the inner walls of cable trays has been achieved, solving the problems of low efficiency and safety hazards associated with traditional cleaning methods.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU QIANXI ZHONGSHUI POWER GENERATION CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional manual cleaning of cable trays is inefficient and poses safety hazards. The trays are prone to sliding and difficult to fix during the cleaning process, increasing the difficulty of operation and physical exertion.
A mobile cleaning device for cable trays in a coal conveying system was designed. It adopts an elastic clamping mechanism of positioning blocks, springs and pull rods, combined with gear transmission and modular mounting brackets, to achieve automated positioning and regular movement of cleaning strips, adapting to different cable tray structures and dirt types.
It significantly improves cleaning efficiency and safety, ensures thorough cleaning coverage, lowers the operational threshold, adapts to various cable tray structures, reduces manual intervention, and avoids dust dispersion and equipment damage.
Smart Images

Figure CN224222098U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable tray cleaning technology, and more specifically, to a mobile cleaning device for cable trays in coal conveying systems. Background Technology
[0002] The mobile cleaning device for cable trays in coal conveying systems is an automated cleaning equipment specifically designed for cable trays in coal conveying systems. Its core function is to efficiently remove adhering substances (such as coal dust and ash) from the surface of cable trays by integrating mechanical movement, sweeping, and dust removal technologies. This avoids the safety risks associated with traditional manual cleaning, which requires disassembling cables or working at heights. Cable trays easily accumulate dust and debris over long-term use, requiring regular cleaning to ensure the safe operation of the coal conveying system. However, traditional cleaning methods rely heavily on manual operation, requiring the trays to be placed on a workbench and manually swept, resulting in high workload and low efficiency. More importantly, due to the lightweight nature of the cable trays, they are easily slipped during cleaning due to external forces, making it difficult to fix the cleaning position and further increasing the difficulty and physical exertion of operation. This cleaning method not only affects work efficiency but may also pose safety hazards due to accidental movement of the cable trays. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a mobile cleaning device for cable trays in coal conveying systems, which has the advantage of convenient cleaning of the cleaning strips.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a mobile cleaning device for cable trays in a coal conveying system, comprising a cable tray, a fixing groove inside the cable tray, a sleeve block movably installed inside the fixing groove, a fixing frame fixedly installed on the top of the sleeve block, an installation block movably installed inside the fixing frame, a housing fixedly installed on the top of the installation block, a positioning block movably installed inside the fixing frame, a pull rod fixedly installed on the top of the positioning block, and the pull rod passes through the interior of the housing, a connecting rod fixedly installed on the top of the two pull rods, a cleaning strip fixedly installed on the top of the installation block, a spring fixedly installed between the positioning block and the housing, and a push rod fixedly installed on the back of the installation block.
[0005] As a preferred technical solution of this utility model, the sleeve block is internally threaded with a screw rod, and both ends of the screw rod penetrate the inside of the cable tray. A driven gear is fixedly installed on the back of the cable tray, and a drive gear is fixedly installed on the output end of the driven gear. One end of the drive gear moves inside the cable tray. A motor is fixedly installed on one end of the screw rod, and the motor and the drive gear are meshed.
[0006] As a preferred embodiment of this utility model, the cable tray is movably installed with limit strips inside, and a cover is fixedly installed on the top of the two limit strips. A second limit post is fixedly installed on the back of the limit strips, and a first limit post is fixedly installed on the back of the cable tray. A limit workpiece is movably installed on the outer surface of the first limit post, and one end of the limit workpiece is grooved and engaged with the outer surface of the second limit post.
[0007] As a preferred embodiment of this utility model, the cleaning brush has a fixed frame installed inside, and the fixed frame is in the shape of a cross.
[0008] As a preferred embodiment of this utility model, a support base is fixedly installed on the back of the cable tray, and the interior of the support base has a U-shaped form.
[0009] As a preferred embodiment of this utility model, the outer surface diameter of the sleeve is equal to the inner diameter of the fixing groove, and the interior of the fixing groove has a smooth surface design.
[0010] As a preferred technical solution of this utility model, the positioning block and the pull rod are arranged in pairs, with two sets moving inside the box.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. Compared with traditional devices, this utility model, through the cooperation of positioning blocks, springs, and pull rods, facilitates the movement of cleaning strips inside the cable tray to clean the inner wall of the cable tray. The cleaning strips can be precisely fixed within seconds, significantly shortening the deployment time for high-altitude and confined space operations and reducing unnecessary operational risks. Its elastic clamping mechanism can adapt to the contour of the inner wall of the cable tray, ensuring continuous surface contact between the strips and the cable tray surface, effectively resisting displacement caused by cleaning vibrations and ensuring the continuity of cleaning operations. The modular installation bracket supports rapid adjustment of spacing and angle, and is compatible with various cross-section cable tray structures such as trapezoidal and trough types, achieving full coverage of complex coal conveying systems with a single device.
[0013] 2. Compared with traditional devices, this utility model, through the cooperation between the sleeve block and the screw, facilitates the cleaning of the inner wall of the cable tray by driving the cleaning bristles. The regular reciprocating motion of the cleaning bristles along the inner wall of the cable tray ensures thorough cleaning coverage, significantly improving cleaning efficiency and quality. Its automated operation mode reduces manual intervention, avoiding the uneven force and omissions problems of traditional cleaning methods. Operators only need to control the direction of the equipment's movement, without manually adjusting the position of the cleaning components, greatly lowering the operating threshold and allowing non-professionals to quickly master the process. The fully enclosed working environment effectively suppresses dust diffusion, and the precise positioning of the mechanical structure ensures the safety of operators and avoids accidental damage to the cable tray itself during the cleaning process. In addition, this design supports rapid adaptation to different specifications of cable trays, and by changing the cleaning bristles of different materials, it can handle diverse types of dirt such as coal dust and oil stains. While extending the service life of the equipment, it gives the device strong environmental adaptability and functional expandability, fully meeting the complex needs of coal conveying system operation and maintenance scenarios. Attached Figure Description
[0014] Figure 1 This is a frontal three-dimensional appearance structural diagram of the present utility model;
[0015] Figure 2 This is a side perspective view of the present invention.
[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0017] Figure 4 This is a schematic diagram of the side cross-sectional structure of this utility model;
[0018] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B;
[0019] Figure 6 This utility model Figure 4 Enlarged structural diagram at point C;
[0020] Figure 7 This is a schematic diagram of the connecting rod structure of this utility model;
[0021] Figure 8 This is a partial cross-sectional structural diagram of the limiting block of this utility model.
[0022] In the diagram: 1. Cable tray; 2. Cover; 3. Fixing groove; 4. Screw; 5. Sleeve block; 6. Cleaning strip; 7. Limiting workpiece; 8. First limiting post; 9. Motor; 10. Driven gear; 11. Limiting strip; 12. Second limiting post; 13. Drive gear; 14. Fixing frame; 15. Mounting block; 16. Housing; 17. Connecting rod; 18. Pull rod; 19. Push rod; 20. Spring; 21. Positioning block; 22. Support base; 23. Fixing frame. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] like Figures 1 to 8 As shown, this utility model provides a mobile cleaning device for cable trays in a coal conveying system, including a cable tray 1. A fixing groove 3 is provided inside the cable tray 1. A sleeve block 5 is movably installed inside the fixing groove 3. A fixing frame 14 is fixedly installed on the top of the sleeve block 5. An installation block 15 is movably installed inside the fixing frame 14. A housing 16 is fixedly installed on the top of the installation block 15. A positioning block 21 is movably installed inside the fixing frame 14. A pull rod 18 is fixedly installed on the top of the positioning block 21, and the pull rod 18 passes through the interior of the housing 16. A connecting rod 17 is fixedly installed on the top of the two pull rods 18. A cleaning strip 6 is fixedly installed on the top of the installation block 15. A spring 20 is fixedly installed between the positioning block 21 and the housing 16. A push rod 19 is fixedly installed on the back of the installation block 15.
[0025] Before cleaning the inner wall of the cable tray 1, the cleaning strip 6 needs to be installed on the inner wall of the cable tray 1. By holding the connecting rod 17, the pull rod 18 and the positioning block 21 are pulled upward inside the box 16. The positioning block 21 compresses the spring 20 inside the box 16, causing the positioning block 21 to pass through the inside of the mounting block 15 and enter the inside of the box 16. By holding the push rod 19, the mounting block 15 is pushed into the inside of the fixed frame 14. The mounting block 15 drives the cleaning strip 6 to move synchronously. When the mounting block 15 is completely inside the fixed frame 14, the connecting rod 17 is released. The spring 20 compresses the positioning block 21 inside the box 16, causing the positioning block 21 to pass through the inside of the mounting block 15 and enter the inside of the fixed frame 14, thus completing the installation of the cleaning strip 6.
[0026] Before cleaning the inner wall of cable tray 1, the cleaning strip 6 must be installed and fixed according to the standard procedure. The operator first holds the connecting rod 17 and pulls it vertically, causing the pull rod 18 and positioning block 21 to move synchronously upwards within the housing 16. At this time, the spring 20 is compressed, and the positioning block 21 passes through the through hole of the mounting block 15 and enters the limiting groove of the housing 16. Then, while holding the connecting rod 17, the operator uses the push rod 19 to push the mounting block 15 into the slot of the mounting base fixing frame 14, simultaneously moving the cleaning strip 6 along the guide rail to complete its initial positioning. When the mounting block 15 is fully embedded in the fixing frame 14, the connecting rod 17 is released, and the elastic force of the spring 20 pushes the positioning block 21 backwards through the mounting block 15 and anchors it in the locking hole of the fixing frame 14. Compared with traditional devices, this device, through the cooperation between the positioning block 21, the spring 20, and the pull rod 18, facilitates the movement of the cleaning strip 6 inside the cable tray 1. The cleaning process cleans the inner wall of the cable tray 1, allowing the cleaning strips 6 to be precisely fixed within seconds. This significantly shortens the deployment time for high-altitude and confined space operations and reduces unnecessary operational risks. Its elastic clamping mechanism adapts to the inner wall contour of the cable tray, ensuring continuous surface contact between the strips and the cable tray surface. This effectively resists displacement caused by cleaning vibrations and ensures the continuity of cleaning operations. The modular mounting bracket supports rapid adjustment of spacing and angle, and is compatible with various cross-section cable tray structures such as trapezoidal and trough types, enabling a single unit to fully cover complex coal conveying systems.
[0027] Among them, the internal thread of the sleeve 5 is fitted with a screw 4, and both ends of the screw 4 pass through the inside of the cable tray 1. A driven gear 10 is fixedly installed on the back of the cable tray 1. A drive gear 13 is fixedly installed on the output end of the driven gear 10, and one end of the drive gear 13 moves inside the cable tray 1. A motor 9 is fixedly installed on one end of the screw 4, and the motor 9 and the drive gear 13 are meshed.
[0028] After the installation block 15 and cleaning strip 6 are installed inside the fixed frame 14, the cleaning strip 6 is used to clean the dirt on the inner wall of the cable tray 1. Then, a special cleaning agent is sprayed on the inner wall of the cable tray 1. Now, the driven gear 10 is activated, which drives the drive gear 13 to rotate inside the cable tray 1. The teeth of the drive gear 13 and the driven gear 10 mesh, and the drive gear 13 drives the driven gear 10 to rotate. The driven gear 10 drives the screw 4 to rotate inside the sleeve block 5, so that the sleeve block 5 drives the fixed frame 14 and the cleaning strip 6 to move synchronously and linearly inside the fixed groove 3. The cleaning strip 6 is then used to clean the dirt on the inner wall of the cable tray 1, thus completing the cleaning of the dirt on the inner wall of the cable tray 1.
[0029] After assembling the mounting block 15 and cleaning strip 6 inside the fixed frame 14, the cleaning strip 6 is used to initially remove dirt from the inner wall of the cable tray 1. Then, a special cleaning agent is sprayed onto the inner wall of the cable tray 1. At this time, the driven gear 10 drive assembly is activated. The driven gear 10 drives the drive gear 13 to rotate inside the cable tray 1. Power transmission is achieved through the tooth meshing structure between the drive gear 13 and the driven gear 10, causing the drive gear 13 to drive the driven gear 10 in the opposite direction. The driven gear 10 further drives the screw 4 to rotate within the sleeve block 5. Through the mechanical linkage between the sleeve block 5 and the fixed groove 3, the fixed frame 14 and the cleaning strip 6 are ultimately driven to form a synchronous linear displacement within the fixed groove 3. This linear motion causes the cleaning strip 6 to sweep back and forth along the inner wall of the cable tray 1, achieving deep dirt removal in conjunction with the cleaning agent. The entire process is completed through gear transmission and a guiding mechanism. Compared with traditional devices, this device achieves deep dirt removal through the interaction between the sleeve block 5 and the screw 4. The coordinated action of the cleaning bristles 6 facilitates the cleaning of the inner wall of the cable tray 1. The regular reciprocating motion of the cleaning bristles 6 along the inner wall of the cable tray 1 ensures thorough cleaning without blind spots, significantly improving cleaning efficiency and quality. Its automated operation mode reduces manual intervention, avoiding the uneven pressure and omissions inherent in traditional cleaning methods. Operators only need to control the direction of the equipment's movement, eliminating the need to manually adjust the position of the cleaning components, greatly lowering the operational threshold and allowing even non-professionals to quickly master the process. The fully enclosed operating environment effectively suppresses dust dispersion, and the precise positioning of the mechanical structure ensures operator safety while preventing accidental damage to the cable tray itself during cleaning. Furthermore, this design supports rapid adaptation to different cable tray specifications; by replacing the cleaning bristles with different materials, it can handle diverse types of dirt such as coal dust and oil stains. This extends the equipment's lifespan while giving the device strong environmental adaptability and functional expandability, fully meeting the complex needs of coal conveying system operation and maintenance scenarios.
[0030] Among them, the cable tray 1 has a limit strip 11 installed inside, the top of the two limit strips 11 is fixedly installed with a cover 2, the back of the limit strip 11 is fixedly installed with a second limit post 12, the back of the cable tray 1 is fixedly installed with a first limit post 8, the outer surface of the first limit post 8 is movably installed with a limit workpiece 7, and one end of the limit workpiece 7 is grooved and engaged with the outer surface of the second limit post 12.
[0031] The cover 2 needs to be placed on top of the cable tray 1. By holding the cover 2, the limiting strip 11 is pushed into the cable tray 1. When the limiting strip 11 is fully inside the cable tray 1, the limiting workpiece 7 is held and rotated by hand on the outer surface of the first limiting post 8 until the groove at one end of the limiting workpiece 7 is engaged with the outer surface of the second limiting post 12, thereby completing the installation of the cover 2 and ensuring the installation efficiency of the cover 2.
[0032] The cleaning strip 6 has a fixed bracket 23 installed inside, and the fixed bracket 23 is in the shape of a cross.
[0033] Since the fixing bracket 23 is fixedly installed inside the cleaning strip 6 in a cross shape, it is convenient to provide stable support for the cleaning strip 6. Then, by tightly adhering the cleaning strip 6 to the inner wall of the cable tray 1 and the cover 2, it is convenient to clean the dirt inside the cable tray 1.
[0034] Among them, a support base 22 is fixedly installed on the back of the cable tray 1, and the interior of the support base 22 has a U-shaped form.
[0035] Since the inside of the support base 22 is U-shaped on the back of the cable tray 1, and the inside of the support base 22 is in contact with the outer surface of the motor 9, the support base 22 can provide stable support for the motor 9, ensuring the stability of the motor 9 during use and improving the efficiency of the motor 9.
[0036] Among them, the outer surface diameter of the sleeve 5 is equal to the inner diameter of the fixing groove 3, and the interior of the fixing groove 3 has a smooth surface design.
[0037] Since the outer surface diameter of the sleeve 5 is equal to the inner diameter of the fixing groove 3, and the inside of the fixing groove 3 has a smooth surface design, it is easy for the sleeve 5 to slide inside the fixing groove 3 by the screw 4, thus ensuring the sliding efficiency of the screw 4 inside the fixing groove 3.
[0038] The positioning block 21 and the pull rod 18 are paired up, forming two sets that move inside the housing 16.
[0039] Since the positioning block 21 and the pull rod 18 are in pairs, there are two sets of movable parts inside the housing 16. Through the cooperation between the positioning block 21 and the pull rod 18, the mounting block 15 can be easily limited and fixed inside the fixed frame 14, ensuring the stability of the mounting block 15 during the use of the fixed frame 14.
[0040] Working principle and usage process of this utility model:
[0041] Before cleaning the inner wall of the cable tray 1, the cleaning strip 6 needs to be installed on the inner wall of the cable tray 1. By holding the connecting rod 17, the pull rod 18 and the positioning block 21 are pulled upward inside the box 16. The positioning block 21 compresses the spring 20 inside the box 16, causing the positioning block 21 to pass through the inside of the mounting block 15 and enter the inside of the box 16. By holding the push rod 19, the mounting block 15 is pushed into the inside of the fixed frame 14. The mounting block 15 drives the cleaning strip 6 to move synchronously. When the mounting block 15 is completely inside the fixed frame 14, the connecting rod 17 is released. The spring 20 compresses the positioning block 21 inside the box 16, causing the positioning block 21 to pass through the inside of the mounting block 15 and enter the inside of the fixed frame 14, thus completing the installation of the cleaning strip 6.
[0042] After the installation block 15 and cleaning strip 6 are installed inside the fixed frame 14, the cleaning strip 6 is used to clean the dirt on the inner wall of the cable tray 1. Then, a special cleaning agent is sprayed on the inner wall of the cable tray 1. Now, the driven gear 10 is activated, which drives the drive gear 13 to rotate inside the cable tray 1. The teeth of the drive gear 13 and the driven gear 10 mesh, and the drive gear 13 drives the driven gear 10 to rotate. The driven gear 10 drives the screw 4 to rotate inside the sleeve block 5, so that the sleeve block 5 drives the fixed frame 14 and the cleaning strip 6 to move synchronously and linearly inside the fixed groove 3. The cleaning strip 6 is then used to clean the dirt on the inner wall of the cable tray 1, thus completing the cleaning of the dirt on the inner wall of the cable tray 1.
[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A mobile cleaning device for cable trays in a coal conveying system, comprising a cable tray (1), characterized in that: The cable tray (1) has a fixing groove (3) inside. A sleeve block (5) is movably installed inside the fixing groove (3). A fixing frame (14) is fixedly installed on the top of the sleeve block (5). An installation block (15) is movably installed inside the fixing frame (14). A box (16) is fixedly installed on the top of the installation block (15). A positioning block (21) is movably installed inside the fixing frame (14). A pull rod (18) is fixedly installed on the top of the positioning block (21), and the pull rod (18) passes through the inside of the box (16). A connecting rod (17) is fixedly installed on the top of the two pull rods (18). A cleaning strip (6) is fixedly installed on the top of the installation block (15). A spring (20) is fixedly installed between the positioning block (21) and the box (16). A push rod (19) is fixedly installed on the back of the installation block (15).
2. The mobile cleaning device for cable trays in a coal conveying system according to claim 1, characterized in that: The sleeve (5) is threaded with a screw (4), and both ends of the screw (4) pass through the inside of the cable tray (1). A driven gear (10) is fixedly installed on the back of the cable tray (1). A drive gear (13) is fixedly installed on the output end of the driven gear (10), and one end of the drive gear (13) moves inside the cable tray (1). A motor (9) is fixedly installed on one end of the screw (4), and the motor (9) meshes with the drive gear (13).
3. The mobile cleaning device for cable trays in a coal conveying system according to claim 1, characterized in that: The cable tray (1) is movably installed with a limiting strip (11) inside. A cover (2) is fixedly installed on the top of the two limiting strips (11). A second limiting post (12) is fixedly installed on the back of the limiting strip (11). A first limiting post (8) is fixedly installed on the back of the cable tray (1). A limiting workpiece (7) is movably installed on the outer surface of the first limiting post (8), and one end of the limiting workpiece (7) is grooved and engaged on the outer surface of the second limiting post (12).
4. The mobile cleaning device for cable trays in a coal conveying system according to claim 1, characterized in that: The cleaning brush strip (6) is internally fixed with a fixing frame (23), and the fixing frame (23) is in the shape of a cross.
5. The mobile cleaning device for cable trays in a coal conveying system according to claim 1, characterized in that: The cable tray (1) has a support base (22) fixedly installed on its back, and the inside of the support base (22) is U-shaped.
6. The mobile cleaning device for cable trays in a coal conveying system according to claim 1, characterized in that: The outer surface diameter of the sleeve (5) is equal to the inner diameter of the fixing groove (3), and the interior of the fixing groove (3) has a smooth surface design.
7. The mobile cleaning device for cable trays in a coal conveying system according to claim 1, characterized in that: The positioning block (21) and the pull rod (18) are in pairs, with two sets moving inside the box (16).