A snow removal system for large roof eaves
By designing a snow removal system with a frame and cleaning mechanism, the problems of danger and high energy consumption in cleaning snow accumulation on large roof eaves have been solved, achieving safe and efficient eaves cleaning and reducing the risk of structural damage and icicle formation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING CHENGJIANQI CONSTRUCT ENG CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-30
AI Technical Summary
Existing technologies for clearing snow from the eaves of large roofs present problems such as high risk, high energy consumption, and difficulty in cleaning the outer walls of the eaves.
A snow removal system including a frame and a cleaning mechanism was designed. The frame consists of crossbeams, longitudinal beams and movable beams. Brushes are installed on the sides of the longitudinal beams and crossbeams. The outer perimeter of the eaves is cleaned by sliding the frame. A camera is equipped to observe the bottom of the eaves. The casters and pulleys are adjustable to accommodate snow of different sizes and thicknesses.
It enables safe and efficient removal of snow from eaves, reduces the risk of structural damage, prevents icicle formation, and ensures building safety.
Smart Images

Figure CN224431845U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of building maintenance equipment, and in particular to a snow removal system for large roof eaves. Background Technology
[0002] In the construction industry, large roofs are a common structural form for many public buildings and industrial plants. In winter, snow accumulation causes the eaves structure to bear additional weight, increasing the risk of structural damage. Melting snow on the eaves forms water that flows down the outer wall of the eaves and can easily form icicles at the bottom of the eaves, which can fall and injure people. Therefore, snow removal work on the eaves of large roofs is crucial.
[0003] When snow accumulates on the eaves, a common method of removal is to climb up to the vicinity of the eaves using ladders or other tools and use simple tools such as brooms and shovels to remove the snow. This method is difficult to clean the outer surface of the eaves and has a high risk factor. Another common method is to use a high-pressure water gun to spray water to melt and wash away the snow. By controlling the pressure and direction of the water flow, the snow on the eaves can be cleared. Snow blowers or hot melt equipment can be used for snow removal operations. These snow removal methods are energy-intensive. Utility Model Content
[0004] The purpose of this application is to overcome the above-mentioned technical problems and provide a snow removal system for large roof eaves.
[0005] A snow removal system for large roof eaves includes:
[0006] A frame, which is slidably disposed at the eaves and can move along the length of the eaves, the frame includes a crossbeam, a longitudinal beam and a movable beam, the crossbeam is located on the top surface of the eaves, the longitudinal beam is vertically fixed to one end of the crossbeam near the outer wall of the eaves, and the movable beam is vertically fixed to one end of the crossbeam away from the longitudinal beam;
[0007] The cleaning mechanism includes multiple brushes, which are respectively connected to the sides of the crossbeam and the longitudinal beam, and the brushes abut against the outer periphery of the eaves.
[0008] By adopting the above method, as the frame slides along the length of the eaves, the brushes located on the longitudinal and transverse beams rub against the outer periphery of the eaves, thereby removing the snow accumulation on the outer periphery of the eaves.
[0009] In one embodiment, a support plate is provided at one end of the longitudinal beam away from the transverse beam, and a camera is mounted on the upper surface of the support plate, with the camera's shooting end facing the eaves.
[0010] The above solution can easily lead to icicles forming at the base of the eaves, posing a safety hazard. Furthermore, with high roofs, it's difficult to observe the condition at the base of the eaves. Installing cameras at the base of the longitudinal beams allows for easier observation of the eaves and facilitates the removal of icicles.
[0011] In one embodiment, the crossbeam includes a first telescopic rod and a transverse sleeve fixed at any position at both ends of the first telescopic rod, and the longitudinal beam includes a second telescopic rod and a longitudinal sleeve fixed at any position at both ends of the second telescopic rod.
[0012] By adopting the above scheme, the lengths of the horizontal and vertical beams can be changed, thereby enabling the horizontal and vertical beams to be adapted to roof eaves of different sizes.
[0013] In one embodiment, the bottom surface of the transverse sleeve is provided with a universal wheel, and the side of the longitudinal sleeve facing the eaves is provided with a one-way roller that slides along the length of the eaves.
[0014] By adopting the above scheme, the installation and movement of the frame are facilitated. During the installation of the frame and the eaves, the crossbeam sleeve is first placed on the top surface of the eaves. Then, the crossbeam is moved along the width of the eaves to ensure that the one-way roller on the longitudinal sleeve is in contact with the outer wall of the eaves. Then, the beam is dragged along the length of the eaves to make the frame slide.
[0015] In one embodiment, the caster wheel includes a mounting screw and a wheel body fixed to one end of the mounting screw, the mounting screw passing through the transverse sleeve.
[0016] By adopting the above solution, the height of the caster wheels can be changed by rotating the mounting screw, thereby enabling the cleaning mechanism to sweep snow of different thicknesses.
[0017] In one embodiment, the frame further includes a slide rail that extends along the length of the eaves and is fixed to the side of the eaves away from the longitudinal beam. One end of the movable beam is rotatably connected to the crossbeam, and the other end is provided with a pulley embedded in the slide rail.
[0018] By adopting the above scheme, when the omnidirectional wheels on the crossbeam and the one-way rollers on the longitudinal beam are in contact with the eaves, the moving beam is rotated so that the pulleys are embedded in the slide rail. The slide rail limits the movement of the moving beam, ensuring that the frame can slide along the length of the eaves.
[0019] In one embodiment, the movable beam has a mounting groove at one end near the crossbeam, and mounting bolts that pass through both the mounting groove and the crossbeam.
[0020] By adopting the above scheme, the mounting bolts can be fixed at any position in the mounting groove, thereby changing the distance from the crossbeam to the pulley, so that the movable beam can be adapted to eaves of different sizes.
[0021] In one embodiment, the side of the movable beam away from the eaves is provided with a counterweight groove, and a counterweight block is provided in the counterweight groove. The counterweight groove is located between the mounting groove and the pulley.
[0022] By adopting the above scheme, since the longitudinal beam is longer than the moving beam, the longitudinal beam is heavier than the moving beam. There is pressure between the pulley and the slide rail to balance the weight difference between the longitudinal beam and the moving beam. The pressure between the pulley and the slide rail will aggravate the wear between the pulley and the slide rail. By adding a counterweight in the counterweight groove, the weight difference between the longitudinal beam and the moving beam can be balanced.
[0023] In one embodiment, the cleaning mechanism further includes a plurality of rotating components, which are rod-shaped and parallel to the outer peripheral surface of the eaves. The plurality of rotating components are fixed to the sides of the crossbeam and the longitudinal beam, and the brush is connected to the rotating components.
[0024] By adopting the above solution, if the brush continues to be in contact with the eaves, the brush will be in a deformed state for a long time, which will lead to permanent deformation and thus lose the ability to plastically deform. When the brush is not in use, it can be rotated to store it.
[0025] In one embodiment, the rotating assembly includes two mounting ears, a rotating shaft, and fasteners. The mounting ears are fixed to the side of the frame. The rotating shaft includes a rotating part and a fixed part. The brush is fixed to the rotating part. The rotating part is located between the two mounting ears and abuts against the mounting ears. The fixed part is located at both ends of the rotating part and passes through the mounting ears. The rotating part is provided with external threads that cooperate with the fasteners.
[0026] By adopting the above method, the brush rotates around the axis and then the fastener is tightened, which can fix the brush at any tilt angle, so that the brush can sweep snow of different thicknesses.
[0027] In summary, this application includes at least one of the following beneficial technical effects:
[0028] 1. During the installation of the frame and eaves, first place the crossbeam sleeve on the top surface of the eaves, then move the crossbeam along the width of the eaves, ensuring that the one-way rollers on the longitudinal sleeves are in contact with the outer wall of the eaves. Then drag the moving beam along the length of the eaves to make the frame slide. During the sliding process, the brushes on the longitudinal and transverse beams rub against the outer circumference of the eaves, thereby removing the snow accumulation on the outer circumference of the eaves.
[0029] 2. Because the longitudinal beam is longer than the moving beam, it is heavier. There is pressure between the pulley and the slide rail to balance the weight difference between the longitudinal beam and the moving beam. The pressure between the pulley and the slide rail will aggravate the wear between the pulley and the slide rail. By adding a counterweight in the counterweight groove, the weight difference between the longitudinal beam and the moving beam can be balanced.
[0030] 3. By rotating the mounting screw, the height of the caster wheel can be changed, allowing the cleaning mechanism to sweep snow of different thicknesses. The brush rotates around the axis, and then the fasteners are tightened to fix the brush at any tilt angle, so that the brush can be adapted to mounting screws of different heights, thereby sweeping snow of different thicknesses. Attached Figure Description
[0031] Figure 1 This is an installation diagram of a snow removal system for a large roof eaves provided in this application.
[0032] Figure 2 This is a structural schematic diagram of a snow removal system for a large roof eaves provided in this application.
[0033] Figure 3 This is a cross-sectional view of a snow removal system for a large roof eaves provided in this application.
[0034] Figure 4 yes Figure 1 An enlarged view of region A.
[0035] Figure 5 yes Figure 2 A magnified view of region B.
[0036] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Crossbeam; 111. First telescopic rod; 112. Transverse sleeve; 113. Caster wheel; 1131. Mounting screw; 1132. Wheel body; 12. Longitudinal beam; 121. Second telescopic rod; 122. Longitudinal sleeve; 1221. Bearing plate; 1222. Camera; 123. One-way roller; 13. Moving beam; 131. Pulley; 132. Mounting groove; 133. Counterweight groove; 134. Counterweight block; 14. Slide rail; 2. Cleaning mechanism; 21. Brush; 22. Rotating component; 221. Mounting ear; 222. Rotating shaft; 2221. Rotating part; 2222. Fixing part; 223. Fastener; 3. Eaves. Detailed Implementation
[0037] Therefore, it is necessary to provide a snow removal system for large roof eaves 3 that is highly safe and easy to clean snow from.
[0038] Please see Figure 1-3 , Figure 1This is an installation diagram of a snow removal system for a large roof eaves provided in this application. The snow removal device for a large roof eaves 3 provided in this application includes a frame 1 and a cleaning mechanism 2. The frame 1 includes a crossbeam 11, a longitudinal beam 12, a moving beam 13, and a slide rail 14. The cleaning mechanism 2 includes multiple brushes 21 and a rotating component 22. The frame 1 can slide along the length of the eaves 3. The brushes 21 of the cleaning mechanism 2 abut against the outer periphery of the eaves 3. During the sliding of the frame 1, the brushes 21 can remove snow accumulated on the outer periphery of the eaves 3, effectively reducing the extra weight of the eaves 3 caused by snow accumulation, reducing the risk of structural damage, preventing icicles from falling from the bottom of the eaves 3 and injuring people, and ensuring the safety of the building and its surrounding environment.
[0039] A crossbeam 11 is located on the top surface of the eaves 3. A longitudinal beam 12 is vertically fixed to one end of the crossbeam 11 near the outer wall of the eaves 3, and a movable beam 13 is vertically fixed to the end of the crossbeam 11 opposite to the longitudinal beam 12. The crossbeam 11 is generally made of metal, such as aluminum alloy, due to its good strength and light weight, making it easy to move and install. Of course, high-strength engineering plastics can also be used, which can reduce the overall weight while ensuring a certain strength. The crossbeam 11 includes a telescopic first telescopic component, such as a first telescopic rod 111 and transverse sleeves 112 fixed at any position at both ends of the first telescopic rod 111. The first telescopic rod 111 can be a multi-level nested structure, similar to the handle of a suitcase, and its length can be adjusted according to different eaves 3 dimensions. The transverse sleeve 112 can be a square cylindrical structure, which facilitates its cooperation with the first telescopic rod 111. In this application, both the transverse sleeve 112 and the telescopic rod are arranged in an array with multiple through holes along the length direction. The different through holes on the transverse sleeve 112 and the first telescopic rod 111 are matched and then fixed with pins, thereby changing the overall length of the crossbeam 11.
[0040] Please refer to the following: Figure 4 , Figure 4 yes Figure 1 An enlarged view of area A. In this application, the bottom surface of the transverse sleeve 112 is provided with a caster wheel 113. The caster wheel 113 includes a mounting screw 1131 and a wheel body 1132 fixed to one end of the mounting screw 1131. The wheel body 1132 is a ball-bearing type wheel body 1132. The mounting screw 1131 passes through the transverse sleeve 112. By rotating the mounting screw 1131, the height of the caster wheel 113 can be changed, thus allowing the cleaning mechanism 2 to adapt to snow of different thicknesses. For example, when the snow is thick, the caster wheel 113 can be appropriately raised so that the brush 21 can better contact the snow for cleaning. The wheel body 1132 can be made of rubber, which has good wear resistance and anti-slip properties, or it can be made of polyurethane, which has high hardness and wear resistance. The mounting screw 1131 can pass through both the transverse sleeve 112 and the first telescopic rod 111, thus fixing the transverse sleeve 112 and the first telescopic rod 111.
[0041] The longitudinal beam 12 is perpendicular to the transverse beam 11 and close to the outer wall of the eaves 3. The longitudinal beam 12 is also made of metal or high-strength engineering plastic. The longitudinal beam 12 includes a retractable second telescopic component, such as a second telescopic rod 121, and longitudinal sleeves 122 fixed at any position at both ends of the second telescopic rod 121. The structure of the second telescopic rod 121 is similar to that of the first telescopic rod 111, also using a through-hole fitting method for fixation, facilitating length adjustment to fit different sizes of eaves 3. The side of the longitudinal sleeve 122 facing the eaves 3 is provided with a one-way roller 123 that slides along the length of the eaves 3. The one-way roller 123 ensures smooth sliding of the frame 1 along the length of the eaves 3. The one-way roller 123 is generally made of hard plastic with a smooth surface, reducing friction with the outer wall of the eaves 3. Ceramic rollers can also be used, offering higher wear resistance and corrosion resistance. A bearing plate 1221 is provided at one end of the longitudinal beam 12 away from the transverse beam 11. The bearing plate 1221 is usually a flat structure and the material can be the same as the longitudinal beam 12. A camera 1222 is provided on the upper surface of the bearing plate 1221. The length of the longitudinal beam 12 is greater than the height of the eaves 3, ensuring that the camera 1222 can observe the situation at the bottom of the eaves 3. Since icicles are prone to form at the bottom of the eaves 3, when the roof is high, the camera 1222 can clearly grasp the situation at the bottom of the eaves 3, which is convenient for timely removal of icicles.
[0042] Please refer to the following: Figure 5 , Figure 5 yes Figure 2 An enlarged view of area B. The movable beam 13 is vertically fixed to the end of the crossbeam 11 opposite to the longitudinal beam 12, and its material can also be metal or engineering plastic. The movable beam 13 and the crossbeam 11 are rotatably connected by an adjustable-gap connection structure, which includes a mounting groove 132 at the end of the movable beam 13 and a mounting pin passing through the mounting groove 132 and the crossbeam 11. The mounting groove 132 can be an elongated slot, and the mounting pin can be a cylindrical metal pin. By fixing the mounting pin at different positions in the mounting groove 132, the distance from the crossbeam 11 to the pulley 131 can be changed, thereby allowing the movable beam 13 to adapt to eaves 3 of different sizes.
[0043] A counterweight groove 133 is provided on the side of the movable beam 13 facing away from the eaves 3, and a detachable counterweight block 134 is installed in the counterweight groove 133. A slide rail 14 extending along the length of the eaves 3 is provided on the inner side of the eaves 3. A pulley 131 embedded in the slide rail 14 is provided at the end of the movable beam 13 facing away from the crossbeam 11, thereby limiting the movement direction of the frame 1. Since the longitudinal beam 12 is longer than the movable beam 13, the longitudinal beam 12 is heavier than the movable beam 13. There is pressure between the pulley 131 and the slide rail 14 to balance the weight difference between the longitudinal beam 12 and the movable beam 13. However, excessive pressure will aggravate the wear between the pulley 131 and the slide rail 14. By adding or removing counterweight blocks 134 in the counterweight groove 133, the weight difference between the longitudinal beam 12 and the movable beam 13 can be well balanced. The counterweight block 134 can be an iron block, the number and weight of which can be adjusted according to actual needs, or it can be a lead block, which has a greater weight per unit volume and occupies less space.
[0044] The frame 1 also includes a slide rail 14 and a pulley 131 assembly. The slide rail 14 is fixed to the side of the eaves 3 away from the longitudinal beam 12, and is usually made of metal, such as stainless steel, which has good strength and corrosion resistance. The cross-section of the slide rail 14 can be trapezoidal or dovetail-shaped, and it fits tightly with the pulley 131 assembly to prevent the pulley 131 from disengaging from the slide rail 14. The pulley 131 assembly is embedded in the slide rail 14 and connected to the moving beam 13. The pulley 131 can adopt a rolling bearing structure to reduce rolling resistance and improve the smoothness of sliding.
[0045] The cleaning mechanism 2 includes multiple brushes 21 and a rotating assembly 22. The brushes 21 are respectively connected to the sides of the crossbeam 11 and the longitudinal beam 12, and the brushes 21 abut against the outer periphery of the eaves 3. The brushes 21 are generally made of nylon filaments, which have good elasticity and wear resistance. Pig bristles can also be used, which have moderate hardness and good cleaning effect. The brushes 21 are connected to the side of the frame 1 through the rotating assembly 22. The rotating assembly 22 includes two mounting ears 221, a rotating shaft 222, and fasteners 223. The mounting ears 221 on the side of the frame 1 are inserted through both ends of the rotating shaft 222. The mounting ears 221 are plate-shaped structures and are fixed to the side of the frame 1.
[0046] The rotating shaft 222 includes a rotating part 2221 and a fixed part 2222. The brush 21 is fixed to the rotating part 2221, which is located between and abuts against two mounting ears 221. The fixed part 2222 is located at both ends of the rotating part 2221 and passes through the mounting ears 221. The mounting ears 221 can be equipped with bearings that mate with the fixed part 2222. The rotating part 2221 has external threads that mate with fasteners 223, which can be nuts. The brush 21 rotates around the rotating shaft 222, and then the fasteners 223 are tightened to fix the brush 21 at any tilt angle, thus enabling the brush 21 to sweep snow of different thicknesses. For example, when the snow is thin, the brush 21 can be adjusted to a smaller tilt angle to increase the contact area with the snow and improve sweeping efficiency.
[0047] The working principle of this application is as follows: Before use, the crossbeam 11 sleeve is placed on the top surface of the eaves 3. Then, the crossbeam 11 is moved along the width direction of the eaves 3 to ensure that the one-way roller 123 on the longitudinal sleeve 122 is in contact with the outer wall surface of the eaves 3. The camera 1222 is used to observe whether there are icicles at the bottom of the eaves 3. Then, the moving beam 13 is adjusted so that the pulley 131 cooperates with the slide rail 14. The moving beam 13 is slid along the length direction of the eaves 3. The brush 21 sweeps the snow on the surface of the eaves 3 and the snow water attached to the outer periphery of the eaves 3.
[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A snow removal system for large roof eaves, characterized by, include: A frame (1) is slidably disposed on the eaves (3) and can move along the length of the eaves (3). The frame (1) includes a crossbeam (11), a longitudinal beam (12), and a movable beam (13). The crossbeam (11) is located on the top surface of the eaves (3). The longitudinal beam (12) is vertically fixed to one end of the crossbeam (11) near the outer wall of the eaves (3). The movable beam (13) is vertically fixed to one end of the crossbeam (11) away from the longitudinal beam (12). The cleaning mechanism (2) includes multiple brushes (21), which are respectively connected to the sides of the crossbeam (11) and the longitudinal beam (12), and the brushes (21) abut against the outer periphery of the eaves (3).
2. A snow removal system for large roof eaves according to claim 1, characterized in that: The longitudinal beam (12) is provided with a bearing plate (1221) at one end away from the cross beam (11). A camera (1222) is installed on the upper surface of the bearing plate (1221), and the shooting end of the camera (1222) is set towards the eaves (3).
3. A snow removal system for large roof eaves according to claim 1, characterized in that: The crossbeam (11) includes a first telescopic rod (111) and a transverse sleeve (112) fixed at any position at both ends of the first telescopic rod (111). The longitudinal beam (12) includes a second telescopic rod (121) and a longitudinal sleeve (122) fixed at any position at both ends of the second telescopic rod (121).
4. A snow removal system for large roof eaves according to claim 3, characterized in that: The bottom surface of the transverse sleeve (112) is provided with a universal wheel (113), and the side of the longitudinal sleeve (122) facing the eaves (3) is provided with a one-way roller (123) that slides along the length of the eaves (3).
5. A snow removal system for large roof eaves according to claim 4, characterized in that: The caster wheel (113) includes a mounting screw (1131) and a wheel body (1132) fixed to one end of the mounting screw (1131), wherein the mounting screw (1131) passes through the transverse sleeve (112).
6. A snow removal system for large roof eaves according to claim 1, characterized in that: The frame (1) also includes a slide rail (14), which extends along the length of the eaves (3). The slide rail (14) is fixed on the side of the eaves (3) away from the longitudinal beam (12). One end of the movable beam (13) is rotatably connected to the cross beam (11), and the other end is provided with a pulley (131) embedded in the slide rail (14).
7. A snow removal system for large roof eaves according to claim 6, characterized in that: The movable beam (13) has an installation groove (132) at one end near the crossbeam (11), and installation bolts that pass through both the installation groove (132) and the crossbeam (11).
8. A snow removal system for a large roof eaves according to claim 7, characterized in that: The movable beam (13) has a counterweight groove (133) on the side away from the eaves (3), and a counterweight block (134) is provided in the counterweight groove (133). The counterweight groove (133) is located between the mounting groove (132) and the pulley (131).
9. A snow removal system for large roof eaves according to claim 1, characterized in that: The cleaning mechanism (2) also includes multiple rotating components (22), which are rod-shaped and parallel to the outer peripheral surface of the eaves (3). The multiple rotating components (22) are fixed to the sides of the crossbeam (11) and the longitudinal beam (12), and the brush (21) is connected to the rotating components (22).
10. A snow removal system for large roof eaves according to claim 9, characterized in that: The rotating assembly (22) includes two mounting ears (221), a rotating shaft (222), and a fastener (223). The mounting ears (221) are fixed to the side of the frame (1). The rotating shaft (222) includes a rotating part (2221) and a fixing part (2222). The brush (21) is fixed to the rotating part (2221). The rotating part (2221) is located between the two mounting ears (221) and abuts against the mounting ears (221). The fixing part (2222) is located at both ends of the rotating part (2221) and passes through the mounting ears (221). The rotating part (2221) is provided with an external thread that mates with the fastener (223).