Snow removing device for metal roof

Abstract

The utility model provides a metal roof snow removal device, which relates to the technical field of roof snow removal, comprises two guide frame bodies, two moving blocks, a push plate and two driving mechanisms used for driving the moving blocks to move, and is characterized in that the two moving blocks are respectively connected in the two guide frame bodies in a sliding manner; a bearing is fixedly installed in the moving block, positioning shafts are fixedly connected to the two ends of the push plate, the moving block is rotationally connected with the positioning shafts through the bearing arranged in the moving block, and a limiting plate is fixedly connected to the bottom of the side, close to the push plate, of the moving block; in the process that the push plate returns from the edge of the roof panel to the top, the push plate rotates around the positioning shaft after the back face of the push plate abuts against snow, so that the snow passes through the lower portion of the push plate and cannot be accumulated on the back face of the push plate, the push plate returns smoothly, damage to a driving mechanism due to overload work is avoided, and the problem that the push plate is fractured due to too large stress is solved. And the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of roof snow removal, in particular to a metal roof snow removal device. Background Art

[0002] Steel structure roofs are usually built with metal plates. When it snows heavily, the snow on the roof metal plates needs to be cleared in time. Because the roof metal plates are usually thin, too much snow piled up on the roof after heavy snow can easily collapse the roof metal plates. In addition, if the snow is thick, after the snow stops, the snow at the junction of the roof metal plates will melt into water, which will cause a large area of ​​snow to slide down. If there are pedestrians or vehicles below, they may be easily injured. Therefore, a metal roof snow removal device is needed to clear the snow on the roof metal plates in time.

[0003] A metal roof snow removal device is disclosed in a Chinese patent with authorization announcement number CN213234044U, including a push plate, a guide frame, a moving block and a moving mechanism. The push plate is arranged horizontally along the roof. There are two guide frames, which are arranged at both ends of the push plate and along the longitudinal length of the roof. A moving block is arranged in each guide frame, and the moving block is connected to the driving end of the moving mechanism. The side of the moving block is fixedly connected to the push plate. The moving mechanism drives the moving block to move along the length direction of the guide frame, and the push plate connected to the moving block moves longitudinally along the roof panel, pushing the snow on the roof out of the edge and dropping it.

[0004] However, the above technical solution still has the following defects: the moving block is fixedly connected to the push plate, so the push plate and the roof panel always maintain a vertical relationship. Therefore, when it snows, when the push plate moves from the edge of the roof panel to the top of the roof panel, it will push the snow on the roof panel to move upward, causing snow to accumulate on the side of the push plate, and the accumulated snow cannot be cleared in time, so that the push plate is subjected to greater force during the process of returning from the edge of the roof panel, causing the drive unit to work overloaded, which can easily lead to damage to the drive unit or breakage of the push plate due to excessive force. Utility Model Content

[0005] The utility model aims to provide a metal roof snow removal device, aiming to solve the problem in the prior art that the push plate of the metal roof snow removal device is subjected to large force during the process of returning from the edge of the roof panel, causing the driving part to work overload, which can easily lead to damage to the driving part or breakage of the push plate due to excessive force.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the metal roof snow removal device includes two guide frames, two moving blocks, a push plate and two driving mechanisms for driving the moving blocks to move, the two moving blocks are respectively slidably connected to the inside of the two guide frames, bearings are fixedly installed inside the moving blocks, both ends of the push plates are fixedly connected to positioning shafts, the moving blocks are rotatably connected to the positioning shafts through bearings arranged inside them, and the bottom of the moving block close to the push plate is fixedly connected to a limiting plate.

[0007] The beneficial effect is that when the moving block moves toward the edge of the roof panel, after the front of the push plate collides with the snow on the roof panel, the reaction force causes the back of the push plate to collide with the limit plate, thereby preventing the push plate from rotating. Therefore, the push plate moves with the moving block, and the snow on the roof panel can be pushed to the edge and slide off. In the process of the push plate returning from the edge of the roof panel to the top, the back of the push plate will rotate around the positioning axis after being resisted by the snow, so that the snow passes from under the push plate, so that it will not accumulate on the back of the push plate, making the return process of the push plate smooth, avoiding overload damage to the driving mechanism, and avoiding the problem of the push plate being broken due to excessive force, thereby improving practicality.

[0008] A further technical solution of the utility model is that a rib is fixedly connected to one side of the push plate.

[0009] The beneficial effect is that the firmness of the push plate can be enhanced by setting the ribs, thereby improving the firmness.

[0010] A further technical solution of the utility model is that the driving mechanism includes two motors, the two motors are respectively fixedly mounted on the two ends of the guide frame, gears are fixedly mounted on the output ends of the two motors, chains are meshed on the outer surfaces of the gears, and the two ends of the chain are respectively fixedly connected to the two sides of the moving block.

[0011] The beneficial effect is that the chain driven by the motor pulls the moving block to move, and the chain is always in a stretched state, so it is not easy to loosen or fall off, and the structure is simple and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the first viewing angle in a specific embodiment of the utility model.

[0013] Figure 2 It is a structural schematic diagram of the second viewing angle in a specific embodiment of the utility model.

[0014] Figure 3 It is a structural schematic diagram of a guide frame and a driving mechanism in a specific embodiment of the utility model.

[0015] Figure 4It is a structural schematic diagram of a moving block in a specific embodiment of the utility model.

[0016] Figure 5 It is a structural schematic diagram of a push plate in a specific embodiment of the utility model.

[0017] In the figure: 1-guide frame, 11-slide groove, 12-hole groove, 13-bearing seat, 14-fixed plate, 2-moving block, 21-bearing, 22-limiting plate, 23-groove, 24-roller, 3-push plate, 31-positioning shaft, 32-notch, 33-rib, 4-driving mechanism, 41-motor, 42-gear, 43-chain. DETAILED DESCRIPTION

[0018] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0019] like Figure 1-5 As shown, a metal roof snow removal device comprises two guide frames 1, two moving blocks 2, a push plate 3 and two driving mechanisms 4 for driving the moving blocks 2 to move. The two moving blocks 2 are respectively slidably connected to the inside of the two guide frames 1, and a bearing 21 is fixedly installed inside the moving block 2. Both ends of the push plate 3 are fixedly connected to a positioning shaft 31. The moving block 2 is rotatably connected to the positioning shaft 31 through the bearing 21 arranged inside the moving block 2. The push plate 3 can rotate around the positioning shaft 31 in the moving block 2. A limiting plate 22 is fixedly connected to the bottom of one side of the moving block 2 close to the push plate 3, as shown in FIG. Figure 2 As shown, when the push plate 3 pushes the snow toward the edge of the roof panel, the push plate 3 rotates around the positioning axis 31 due to the reaction force of the snow. After the push plate 3 rotates to an angle perpendicular to the roof panel, the limit plate 22 on the moving block 2 will contact one side of the push plate 3, so that the push plate 3 cannot continue to rotate, so that the push plate 3 can push the snow to the edge of the roof panel. When the push plate 3 moves from the edge of the roof panel to the top, the push plate 3 rotates around the positioning axis 31 due to the reaction force of the snow on the roof panel. Since the limit plate 22 cannot contact the push plate 3, it will not limit the rotation of the push plate 3, and the push plate 3 can pass over the snow.

[0020] Furthermore, a notch 32 is provided at the bottom of the push plate 3. The metal roof is usually provided with a raised structure to reinforce the metal roof, and the notch 32 has a shape that matches the raised structure of the metal roof, thereby ensuring that the push plate 3 can clear the snow between the raised structures.

[0021] like Figure 5 As shown, a rib 33 is fixedly connected to one side of the push plate 3 , and the rib 33 is in the shape of a triangular prism, which can enhance the firmness of the push plate 3 .

[0022] Furthermore, a slide groove 11 is provided on the inner wall of the guide frame 1, and the moving block 2 is slidably connected inside the slide groove 11. Grooves 23 are provided on the top and bottom of the moving block 2. A roller 24 is rotatably connected in the groove 23. The moving block 2 is slidably connected in the slide groove 11 through the roller 24, and the rolling friction has a small friction coefficient, which can reduce wear and noise.

[0023] In this specific embodiment, the driving mechanism 4 drives the moving block 2 to perform reciprocating motion, so that the push plate 3 can reciprocate on the roof panel, and when the push plate 3 moves from the top of the roof panel to the edge, it will be restricted by the limiting plate 22, so that it can maintain a vertical state with the roof panel, thereby ensuring that the snow on the roof panel can be cleared. During the process of the push plate 3 moving from the edge of the roof panel to the top, the push plate 3 is not restricted by the limiting plate 22. Therefore, when the push plate 3 is subjected to the reaction force of the snow, the push plate 3 can rotate around the positioning axis 31 and pass over the snow, thereby avoiding the problem of snow accumulation on the back of the push plate 3.

[0024] A Chinese patent with prior art authorization announcement number CN213234044U discloses a metal roof snow removal device, which is provided with two wire drums, and a push plate is driven to move by releasing a soft steel wire rope from one wire drum and winding up the soft steel wire rope from the other wire drum. However, after a layer of soft steel wire rope is wound around the surface of the wire drum, the diameter of the wire drum is changed, so the length of the soft steel wire rope wound around the wire drum becomes longer when the wire drum rotates one more circle. Similarly, when the wire drum releases the soft steel wire rope, as the soft steel wire rope on the surface of the wire drum decreases, the length of the soft steel wire rope released by rotating one more circle becomes shorter, so the push plate cannot move at a uniform speed, and because the soft steel wire rope released by one wire drum is longer at the beginning, the other wire drum cannot be moved in time Reeling causes the soft steel wire rope to loosen, making it easy to fall off the wire drum. To solve the above problem, in another specific embodiment of the utility model, the driving mechanism 4 includes two motors 41, and the two motors 41 are respectively fixedly mounted on the two ends of the guide frame 1, and the output ends of the two motors 41 are fixedly mounted with gears 42, and the outer surface of the gear 42 is meshed with a chain 43, and the two ends of the chain 43 are respectively fixedly connected to the two sides of the moving block 2, and the motor 41 drives the chain 43 through the gear 42, so that the chain 43 pulls the moving block 2 to move, and the surface of the gear 42 does not need to be wrapped with the chain 43, so the diameter will not change, so that the moving block 2 can move at a uniform speed, and the chain 43 will not loosen and fall off.

[0025] Specifically, Figure 3 As shown, holes 12 are formed at both ends of the guide frame 1 , and both ends of the chain 43 pass through the holes 12 at both ends of the guide frame 1 to penetrate into the interior of the guide frame 1 .

[0026] Specifically, Figure 3As shown, both ends of the guide frame 1 are fixedly connected with bearing seats 13, the gear 42 is rotatably connected in the bearing seats 13, a round shaft is fixedly connected at the axis core of the gear 42, the gear 42 is rotatably connected in the bearing seat 13 through the round shaft, and one end of the round shaft is connected to the output end of the motor 41, the bearing seat 13 can assist the output end of the motor 41 in supporting the gear 42, can avoid the problem of deformation and fracture of the output end of the motor 41, and improves the reliability of the structure, a fixing plate 14 is fixedly connected to the bottom of one side of the guide frame 1 for fixing the guide frame 1 on the roof.

Claims

1. A metal roof snow removal device, comprising two guide frames (1), two moving blocks (2), a push plate (3) and two driving mechanisms (4) for driving the moving blocks (2) to move, wherein: The two moving blocks (2) are respectively slidably connected inside the two guide frames (1); a bearing (21) is fixedly installed inside the moving block (2); both ends of the push plate (3) are fixedly connected to a positioning shaft (31); the moving block (2) is rotatably connected to the positioning shaft (31) via the bearing (21) arranged inside the moving block (2); and a limiting plate (22) is fixedly connected to the bottom of one side of the moving block (2) close to the push plate (3).

2. A metal roof snow removal device according to claim 1, characterized in that: A notch (32) is provided at the bottom of the push plate (3).

3. A metal roof snow removal device according to claim 1, characterized in that: A rib (33) is fixedly connected to one side of the push plate (3).

4. A metal roof snow removal device according to claim 1, characterized in that: The inner wall of the guide frame (1) is provided with a sliding groove (11), and the moving block (2) is slidably connected inside the sliding groove (11).

5. A metal roof snow removal device according to claim 4, characterized in that: The top and bottom of the moving block (2) are both provided with grooves (23), a roller (24) is rotatably connected in the groove (23), and the moving block (2) is slidably connected in the slide groove (11) via the roller (24).

6. A metal roof snow removal device according to any one of claims 1 to 5, characterized in that: The driving mechanism (4) comprises two motors (41), the two motors (41) being fixedly mounted on two ends of the guide frame (1), respectively; a gear (42) being fixedly mounted on the output ends of the two motors (41), a chain (43) being meshed on the outer surface of the gear (42), and two ends of the chain (43) being fixedly connected to two sides of the moving block (2), respectively.

7. A metal roof snow removal device according to claim 6, characterized in that: Both ends of the guide frame (1) are provided with holes (12), and both ends of the chain (43) pass through the holes (12) at the two ends of the guide frame (1) to the interior of the guide frame (1).

8. A metal roof snow removal device according to claim 7, characterized in that: Both ends of the guide frame (1) are fixedly connected to bearing seats (13), the gear (42) is rotatably connected in the bearing seats (13), and a fixing plate (14) is fixedly connected to the bottom of one side of the guide frame (1).

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