A concave photovoltaic cleaning brush

Abstract

The utility model provides a kind of concave photovoltaic cleaning brush, including brush shaft, the circumferential side wall of brush shaft is equipped with helical bristle, the helical bristle includes the end portion area of both ends and the recessed area of middle, the bristle length of recessed area gradually increases in the process of extending towards end portion area, the both ends of brush shaft are equipped with docking interface, the brush shaft includes metal inner shaft and plastic outer shaft, the plastic outer shaft is sleeved on metal inner shaft, the end portion of metal inner shaft and plastic outer shaft is equipped with corresponding docking interface, the both ends of the metal inner shaft and plastic outer shaft are also equipped with the docking hole matched with docking interface. The bristle of the cleaning brush adopts the mode of middle short and both ends long, greatly reduces the wear rate of brush roll.

Description

Technical Field

[0001] This utility model relates to the field of cleaning brush technology, and in particular to a concave photovoltaic cleaning brush. Background Technology

[0002] The photovoltaic industry often includes photovoltaic (PV) panels in its hardware. A PV panel is a power generation device that generates direct current (DC) when exposed to sunlight. It consists of thin, solid-state photovoltaic cells made of semiconductor materials (such as silicon). Because PV panels are exposed to the outdoors for extended periods, cleaning issues arise. Dust and debris accumulate on their surfaces, and if not cleaned regularly, the dirt can block sunlight, impacting power generation efficiency.

[0003] With the advancement of technology, some manufacturers have developed and produced automated cleaning equipment. This equipment often includes cleaning carts or cleaning robots, and the cleaning components use brush rollers, which rely on the rotation of the brush rollers to remove dirt from the surface of photovoltaic panels.

[0004] When in use, after the two ends of the brush roller are connected to the rotating parts, the brush roller is placed horizontally on the photovoltaic panel for cleaning. However, due to the long length of the brush roller, the middle part of the brush roller lacks support and will sink under the action of gravity. At this time, the bristles in the middle will increase the contact area with the photovoltaic panel. After long-term use, the wear rate will increase significantly. Summary of the Invention

[0005] To address the aforementioned problems, this utility model provides a concave photovoltaic cleaning brush with bristles that are shorter in the middle and longer at both ends, which greatly reduces the wear rate of the brush roller.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0007] A concave photovoltaic cleaning brush includes a brush shaft with spiral bristles mounted on its circumferential sidewalls. The spiral bristles include end regions at both ends and a concave region in the middle. The bristle length in the concave region gradually increases as it extends toward the end regions. Both ends of the brush shaft are provided with connecting interfaces.

[0008] Preferably, the length of the central bristles in the recessed area differs from the length of the edge bristles in the end area by 2-4 cm.

[0009] Preferably, the brush shaft includes a metal inner shaft and a plastic outer shaft, the plastic outer shaft being fitted onto the metal inner shaft, and both the metal inner shaft and the plastic outer shaft having corresponding mating interfaces at their ends.

[0010] Preferably, both ends of the inner metal shaft and the outer plastic shaft are provided with mating holes that mate with the mating interface.

[0011] Preferably, the circumferential sidewall of the plastic outer shaft is provided with a plurality of spirally arranged bristle holes, and the roots of the spiral bristles are implanted in the bristle holes.

[0012] Preferably, the inner metal shaft has a built-in water outlet pipe, and the circumferential sidewall of the water outlet pipe has a plurality of spirally distributed inner water outlet holes. The inner metal shaft and the outer plastic shaft have a plurality of outer water outlet holes corresponding to the plurality of inner water outlet holes. The outer water outlet holes are staggered with the spiral bristles. One end of the water outlet pipe has a water inlet, and the end sidewalls of the inner metal shaft and the outer plastic shaft have threaded interfaces corresponding to the water inlet.

[0013] Preferably, a mounting plate is fixed to one end of the inner metal shaft, and the other end of the water outlet pipe is connected to the mounting plate by bolts.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The spiral bristles include end areas at both ends and a recessed area in the middle. The bristle length in the recessed area gradually increases as it extends towards the end area. That is, the bristle length in the middle is less than the bristle length at the end. When the long brush roller is actually used, the contact area of ​​the bristles after the middle sinks is consistent with the contact area of ​​the bristles at the end, which greatly reduces the wear rate.

[0016] 2. By embedding a water outlet pipe inside the metal inner shaft, the water outlet pipe is fixed in position by bolts, making assembly convenient. Multiple internal water outlet holes correspond one-to-one with multiple external water outlet holes. During use, the water inlet pipe is connected to the outside through the threaded interface. The water inlet pipe rotates synchronously with the rotating parts. During the cleaning process, clean water is discharged from multiple water outlet holes, improving the cleaning effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a front view of the present invention;

[0019] Figure 3 This is a front view of the brush shaft proposed in this utility model;

[0020] Figure 4 This is a cross-sectional view of the brush shaft proposed in this utility model.

[0021] In the diagram: 1. Brush shaft, 11. Connecting interface, 12. Bristle implantation hole, 13. Outlet water hole, 14. Connecting hole, 15. Metal inner shaft, 16. Threaded interface, 2. Spiral bristles, 21. Recessed area, 22. End area, 3. Outlet pipe, 31. Inner water outlet hole, 4. Mounting plate, 5. Bolt. Detailed Implementation

[0022] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0024] Reference Figure 1-4 A concave photovoltaic cleaning brush includes a brush shaft 1, with spiral bristles 2 installed on the circumferential sidewall of the brush shaft 1. The circumferential sidewall of the plastic outer shaft is provided with multiple spirally arranged bristle holes 12. The roots of the spiral bristles 2 are implanted in the bristle holes 12, which can cover the entire photovoltaic panel during rotation.

[0025] The spiral bristles 2 include end areas 22 at both ends and a recessed area 21 in the middle. The bristle length in the recessed area 21 gradually increases as it extends towards the end areas 22. The bristle length at the center of the recessed area 21 differs from the bristle length at the edge of the end areas 22 by 2-4 cm. When the long brush roller is actually used, the contact area of ​​the bristles after the middle section sinks is consistent with the contact area of ​​the end bristles, which greatly reduces the wear rate.

[0026] Both ends of the brush shaft 1 are provided with interface 11, and both ends of the metal inner shaft 15 and the plastic outer shaft are also provided with docking holes 14 that cooperate with the interface 11 to connect with the rotating shaft of the cleaning robot.

[0027] The brush shaft 1 includes a metal inner shaft 15 and a plastic outer shaft. The plastic outer shaft is fitted onto the metal inner shaft 15. Both the metal inner shaft 15 and the plastic outer shaft have corresponding mating interfaces 11 at their ends. Adding the metal inner shaft 15 can increase the structural strength of the brush shaft 1.

[0028] In addition, the inner metal shaft 15 has a built-in water outlet pipe 3. The circumferential sidewall of the water outlet pipe 3 has multiple spirally distributed inner water outlet holes 31. The inner metal shaft 15 and the outer plastic shaft have multiple outer water outlet holes 13 corresponding to the multiple inner water outlet holes 31. The outer water outlet holes 13 are staggered with the spiral bristles 2. One end of the water outlet pipe 3 has a water inlet. The end sidewall of the inner metal shaft 15 and the outer plastic shaft has a threaded interface 16 corresponding to the water inlet. One end of the inner metal shaft 15 is fixed with a mounting plate 4. The other end of the water outlet pipe 3 is connected to the mounting plate 4 by bolts 5. The water outlet pipe 3 is fixed in position by bolts 5, which is convenient for assembly. The multiple inner water outlet holes 31 correspond one-to-one with the multiple outer water outlet holes 13. When in use, the water inlet pipe is connected to the outside through the threaded interface 16. The water inlet pipe rotates synchronously with the rotating parts. During the cleaning process, clean water is discharged from the multiple water outlet holes, which improves the cleaning effect.

[0029] The spiral bristles 2 include end areas 22 at both ends and a recessed area 21 in the middle. The bristle length in the recessed area 21 gradually increases as it extends towards the end areas 22. That is, the bristle length in the middle is less than the bristle length at the end. When the long brush roller is actually used, the contact area of ​​the bristles after the middle sinks is the same as the contact area of ​​the bristles at the end, which greatly reduces the wear rate.

[0030] The water outlet pipe 3 is fixed in position by bolts 5, making assembly convenient. Multiple internal water outlet holes 31 correspond one-to-one with multiple external water outlet holes 13. In use, the water inlet pipe is connected to the outside through the threaded interface 16. The water inlet pipe rotates synchronously with the rotating parts. During the cleaning process, clean water is discharged from multiple water outlet holes, improving the cleaning effect.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A concave photovoltaic cleaning brush, comprising a brush shaft (1), characterized in that, Spiral bristles (2) are installed on the circumferential sidewall of the brush shaft (1). The spiral bristles (2) include end areas (22) at both ends and a recessed area (21) in the middle. The bristle length in the recessed area (21) gradually increases as it extends toward the end area (22). Both ends of the brush shaft (1) are provided with a connecting interface (11).

2. The concave photovoltaic cleaning brush according to claim 1, characterized in that, The length of the central bristles in the recessed area (21) differs from the length of the edge bristles in the end area (22) by 2-4 cm.

3. A concave photovoltaic cleaning brush according to claim 1, characterized in that, The brush shaft (1) includes a metal inner shaft (15) and a plastic outer shaft. The plastic outer shaft is fitted onto the metal inner shaft (15). The ends of the metal inner shaft (15) and the plastic outer shaft are provided with corresponding mating interfaces (11).

4. A concave photovoltaic cleaning brush according to claim 3, characterized in that, The metal inner shaft (15) and the plastic outer shaft are also provided with mating holes (14) at both ends to mate with the mating interface (11).

5. A concave photovoltaic cleaning brush according to claim 3, characterized in that, The plastic outer shaft has multiple spirally arranged bristle holes (12) on its circumferential sidewall, and the roots of the spiral bristles (2) are implanted in the bristle holes (12).

6. A concave photovoltaic cleaning brush according to claim 3, characterized in that, The inner metal shaft (15) has a water outlet pipe (3) inside. The circumferential sidewall of the water outlet pipe (3) is provided with a plurality of spirally distributed inner water outlet holes (31). The inner metal shaft (15) and the outer plastic shaft are provided with a plurality of outgoing water holes (13) corresponding to the plurality of inner water outlet holes (31). The outgoing water holes (13) are offset from the spiral bristles (2). One end of the water outlet pipe (3) is provided with a water inlet. The end sidewall of the inner metal shaft (15) and the outer plastic shaft is provided with a threaded interface (16) corresponding to the water inlet.

7. A concave photovoltaic cleaning brush according to claim 6, characterized in that, One end of the inner metal shaft (15) is fixed with a mounting plate (4), and the other end of the water outlet pipe (3) is connected to the mounting plate (4) by bolts (5).

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