Roof cleaning machine

Abstract

The utility model discloses a roof cleaning machine which comprises a shell, an operating rod is movably connected to the top of the shell in a hinged mode or a ball joint connection mode, a driving cavity is formed in the bottom of the shell preferably in a hinged mode, a water wheel is rotatably arranged in the driving cavity, a disc brush is fixedly connected to the axial end face of the water wheel, and the disc brush is fixedly connected to the top of the shell. The side wall of the shell is provided with a nozzle and a drainage port, the nozzle is obliquely arranged, the water inlet end of the nozzle is used for being externally connected with a high-pressure water pipe, the water outlet end of the nozzle is communicated with the driving cavity, water flows to the nozzle through the water pipe and is sprayed out of the water outlet end of the nozzle in the form of a high-pressure water column, and the water column impacts wheel blades of the water wheel to drive the water wheel to rotate. In the brushing process, the shell can swing relative to the operating rod so as to adapt to an arc-shaped or uneven structure of the roof, cleaning blind areas are avoided, and the cleaning effect is better.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a roof cleaning machine. Background Technology

[0002] The roofs of greenhouses, photovoltaic structures, and other similar facilities are exposed to the outdoors for extended periods, easily accumulating dust, bird droppings, leaves, and other contaminants, which can affect light transmittance or power generation efficiency. Therefore, regular cleaning is necessary. Currently, common roof cleaning methods mainly include manual cleaning and automated mechanical cleaning.

[0003] However, greenhouse roofs are mostly curved or uneven structures. Automated cleaning equipment relies on fixed tracks or flat surfaces, which makes it difficult to adapt to complex curved surfaces, easily resulting in blind spots and poor cleaning effects. Utility Model Content

[0004] In view of this, the present invention provides a roof cleaning machine to solve the problem that existing automated cleaning equipment usually relies on fixed tracks or flat surfaces, making it difficult to adapt to complex curved surfaces, easily resulting in blind spots and poor cleaning effect.

[0005] To achieve one, some, or all of the above objectives or other objectives, this utility model proposes a roof cleaning machine, including a housing, an operating rod movably connected to the top of the housing, a drive chamber opened at the bottom of the housing, a water wheel rotatably disposed in the drive chamber, a disc brush fixedly connected to the axial end face of the water wheel, a nozzle and a drain port provided on the side wall of the housing, the water inlet end of the nozzle is used to connect to an external high-pressure water pipe, the water outlet end is connected to the drive chamber, and the drain port is used to discharge the water flow in the drive chamber. When the high-pressure water flow impacts the water wheel through the nozzle, it drives the disc brush to rotate synchronously.

[0006] Preferably, one side of the housing has an outwardly extending protrusion, the bottom of the protrusion has a venting cavity communicating with the drive cavity, and the protrusion has a strip-shaped notch along the tangential direction of the drive cavity, the notch penetrating the two side walls of the venting cavity and forming a vent.

[0007] Preferably, the sidewall of the water turbine is provided with a plurality of ratchet teeth evenly distributed in the circumferential direction, and each ratchet tooth constitutes the blade structure of the water turbine.

[0008] Preferably, the top of the water wheel is spaced apart from the inner wall of the drive chamber, the top of the water wheel is provided with a diversion chamber, the inner wall of the diversion chamber is provided with a central shaft vertically, the end of the central shaft is rotatably connected to the inner wall of the drive chamber, the middle part of the water wheel is provided with a plurality of first diversion ports distributed circumferentially around the central shaft, and the middle part of the disc brush is provided with a second diversion port corresponding to the first diversion ports.

[0009] Preferably, the diversion cavity is provided with a plurality of reinforcing ribs evenly distributed along the central axis circumferentially. Each reinforcing rib extends radially along the central axis and connects the central axis with the inner wall of the diversion cavity to form a radial support structure.

[0010] Preferably, the inner wall of the drive cavity is provided with an axial transition groove, and the end of the central shaft is provided with a frustum coaxially. The frustum is rotatably connected in the transition groove. The water wheel and the housing are detachably connected by a first connecting screw that coaxially passes through the central shaft and the frustum. The tip of the first connecting screw passes through the frustum and is screwed to the inner wall of the drive cavity. The head of the first connecting screw abuts against the bottom side wall of the water wheel.

[0011] Preferably, a top block is provided at the center of the inner wall of the drive cavity, the transition groove is opened on the top block, and the end of the central shaft is flush with the top of the water wheel and abuts against the top block.

[0012] Preferably, the disc brush is coaxially disposed on the bottom side of the waterwheel. Multiple radially extending locking blocks are evenly distributed circumferentially on the bottom sidewall of the waterwheel. Each locking block has a through groove along its length. Multiple locking slots are distributed circumferentially on the disc brush. The locking blocks are locked into the locking slots one by one. Each locking slot has a connecting block extending radially along the disc brush on its inner wall. The connecting block is inserted into the through groove of the corresponding locking block. The locking block and the disc brush are detachably connected by a second connecting screw that passes through the connecting block. The tip of the second connecting screw is screwed to the inner wall of the through groove, and the head of the second connecting screw abuts against the bottom sidewall of the disc brush.

[0013] Preferably, the operating rod is a through-type hollow rod body, with a water pipe sleeved inside. The water outlet end of the water pipe is connected to the water inlet end of the nozzle. The top of the operating rod is provided with a radially penetrating fastening screw. By tightening the fastening screw, the water pipe can be partially axially fixed inside the operating rod.

[0014] Preferably, the operating lever is a telescopic lever.

[0015] Implementing the embodiments of this utility model will have the following beneficial effects:

[0016] After adopting the above-mentioned roof cleaning machine, the housing can be lowered to the roof via the operating lever, and then the faucet connected to the high-pressure water pipe can be turned on. Water flows through the water pipe to the nozzle and is sprayed out from the nozzle outlet in the form of a high-pressure water jet. The water jet impacts the impeller blades, causing the impeller to rotate. This uses water power to drive the disc brush to rotate synchronously and clean the roof. Some water flows out through the gap between the impeller and the side wall of the drive chamber, forming a ring-shaped water curtain that surrounds the disc brush, so as to wash the impurities removed by the disc brush off the roof. The other part of the water is discharged through the drain port to prevent the water pressure in the drive chamber from being too high and causing the water flow to splash irregularly. The water flow is stably coordinated with the disc brush in the form of a water curtain, which improves the cleaning efficiency of the roof. At the same time, during the cleaning process, the housing can swing relative to the operating lever to adapt to the curved or uneven structure of the roof, avoiding cleaning blind spots and achieving better cleaning results. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] in:

[0019] Figure 1 This is an exploded view of the present invention from a bottom perspective;

[0020] Figure 2 This is an exploded view of the present invention from a top perspective;

[0021] Figure 3 This is a perspective view of the present invention from the bottom.

[0022] Figure 4 This is a side sectional view of the present invention;

[0023] Figure 5 This is a perspective view of the present invention from a top viewpoint.

[0024] In the diagram: 1. Housing; 11. Drive chamber; 12. Nozzle; 13. Drain port; 14. Top block; 15. Adapter groove; 2. Operating lever; 3. Water wheel; 31. Ratchet; 32. Diverter chamber; 33. Central shaft; 34. First diverter port; 35. Reinforcing rib; 36. Frustum; 37. Locking block; 38. Through groove; 4. Disc brush; 41. Second diverter port; 42. Locking slot; 43. Connecting block; 5. Protrusion; 51. Drain chamber; 61. First connecting screw; 62. Second connecting screw; 7. Water pipe; 8. Fastening screw; a. Brush bristles; b. Impact chamber. Detailed Implementation

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0028] like Figure 1-5As shown, a roof cleaning machine includes a housing 1. An operating lever 2 is movably connected to the top of the housing 1. The movable connection can be a hinge or a ball joint connection, and in this embodiment, a hinge is preferred. A drive cavity 11 is opened at the bottom of the housing 1. A water wheel 3 is rotatably arranged in the drive cavity 11. A disc brush 4 is fixedly connected to the axial end face of the water wheel 3. A nozzle 12 and a drain port 13 are provided on the side wall of the housing 1. The nozzle 12 is obliquely arranged. The water inlet end of the nozzle 12 is used to connect to a high-pressure water pipe 7, and the water outlet end is connected to the drive cavity 11. In use, the housing 1 can be raised to the roof by operating lever 2, and then the faucet connected to the high-pressure water pipe 7 is turned on. The water flows through the water pipe 7 to the nozzle 12 and is sprayed out from the water outlet end of the nozzle 12 in the form of a high-pressure water jet. The water jet will impact the impeller of the water wheel 3. The water wheel 3 is driven to rotate, thereby using water power to drive the disc brush 4 to rotate synchronously and scrub the roof. Some water flows out through the gap between the water wheel 3 and the side wall of the drive chamber 11, forming an annular water curtain that surrounds the disc brush 4, so as to wash the impurities brushed off by the disc brush 4 off the roof. The other part of the water is discharged through the drain port 13 to prevent the water pressure in the drive chamber 11 from being too high and causing the water flow to splash irregularly. The water flow is stably coordinated with the scrubbing of the disc brush 4 in the form of a water curtain, which improves the scrubbing efficiency of the roof. At the same time, during the scrubbing process, the operator can change the holding angle of the operating lever 2, so that the housing 1 swings relative to the operating lever 2, ensuring that the disc brush 4 is always attached to the roof surface, so as to adapt to the curved or uneven structure of the roof, avoid cleaning blind spots, and achieve better cleaning effect.

[0029] In this embodiment, bristles a are distributed around the bottom periphery of the housing 1, so that the bristles a can replace the bottom periphery of the housing 1 in contacting the roof, thereby preventing the bottom periphery of the housing 1 from scratching the roof (such as a plastic roof).

[0030] Specifically, the water pump can be controlled via a remote control to shut off the roof cleaning machine. Additionally, the water flow and the rotation speed of the disc brush 4 can be controlled by adjusting the water pressure. For hard surfaces, the rotation speed can be increased to speed up cleaning. For soft surfaces such as greenhouse film, the speed can be reduced to avoid damaging the film with high rotation speed.

[0031] Furthermore, one side of the housing 1 is provided with an outwardly extending protrusion 5. The bottom of the protrusion 5 is provided with a drain cavity 51 that communicates with the drive cavity 11. The protrusion 5 has a strip-shaped notch along the tangential direction of the drive cavity 11. The notch penetrates the two side walls of the drain cavity 51 and forms a drain port 13. After the high-pressure water jet impacts the impeller of the water wheel 3, some water will rotate with the water wheel 3 under the action of centrifugal force and eventually be thrown into the drain cavity 51. It will flow out through the bottom opening of the drain cavity 51 or the drain port 13 to balance the water pressure in the drive cavity 11 and avoid water splashing.

[0032] Furthermore, the side wall of the water turbine 3 is provided with a plurality of ratchet teeth 31 evenly distributed in the circumferential direction. Each ratchet tooth 31 constitutes the blade structure of the water turbine 3. Two adjacent ratchet teeth 31 and the top side wall of the disc brush 4 form an impact cavity b, so as to increase the force-bearing surface of the water turbine 3 through the impact cavity b, prolong the action time of the high-pressure water flow on the blade, improve the energy conversion efficiency, make the disc brush 4 rotate higher and have stronger power, and improve the cleaning efficiency.

[0033] Furthermore, the top of the water wheel 3 is spaced from the inner wall of the drive chamber 11. A diversion chamber 32 is provided on the top of the water wheel 3. A central shaft 33 is vertically provided at the center of the inner wall of the diversion chamber 32. The end of the central shaft 33 is rotatably connected to the inner wall of the drive chamber 11. Several first diversion ports 34 are provided in the middle of the water wheel 3, which are distributed circumferentially around the central shaft 33. A second diversion port 41 connected to the first diversion ports 34 is provided in the middle of the disc brush 4. The water flow that impacts the impeller will enter the diversion chamber 32 through the gap between the water wheel 3 and the inner wall of the drive chamber 11, and then pass through the first diversion port 34 and the second diversion port 41 in sequence, and finally flow out from the middle of the disc brush 4 so that the water flow covers the middle of the disc brush 4 and improves the rinsing efficiency.

[0034] In one embodiment, the end of the central shaft 33 can be rotatably connected to the inner wall of the drive cavity 11 via a waterproof bearing (not shown in the figures).

[0035] Furthermore, the diversion cavity 32 is provided with a plurality of reinforcing ribs 35 evenly distributed around the central axis 33. Each reinforcing rib 35 extends radially along the central axis 33 and connects the central axis 33 with the inner wall of the diversion cavity 32 to form a radial support structure, thereby improving the overall structural strength of the water turbine 3, enabling it to stably support the rotation of the disc brush 4 under the impact of high-pressure water flow, and withstand the reaction force generated by the brushing action of the disc brush 4.

[0036] Furthermore, the inner wall of the drive cavity 11 is provided with an axial transition groove 15, and the end of the central shaft 33 is provided with a frustum 36 coaxially. The frustum 36 is rotatably connected in the transition groove 15. The water wheel 3 and the housing 1 are detachably connected by a first connecting screw 61 that coaxially passes through the central shaft 33 and the frustum 36. The tip of the first connecting screw 61 passes through the frustum 36 and screws into the inner wall of the drive cavity 11. The head of the first connecting screw 61 abuts against the bottom side wall of the water wheel 3, so as to restrict the axial movement of the water wheel 3 by the first connecting screw 61, so that the water wheel 3 is fixedly rotatably connected to the inner wall of the drive cavity 11. When the water flow impacts the water wheel 3, the water wheel 3 will rotate around the first connecting screw 61 as the axis.

[0037] Furthermore, a top block 14 is provided at the center of the inner wall of the drive cavity 11, and a transition groove 15 is opened on the top block 14. The end of the central shaft 33 is flush with the top of the water wheel 3 and abuts against the top block 14, so that the water wheel 3 and the inner wall of the drive cavity 11 are kept apart by the abutment and limiting of the top block 14 and the central shaft 33.

[0038] Furthermore, the disc brush 4 is coaxially mounted on the bottom side of the water turbine 3. Multiple radially extending locking blocks 37 are evenly distributed circumferentially on the bottom sidewall of the water turbine 3. Each locking block 37 has a through groove 38 along its length. Multiple locking slots 42 are distributed circumferentially on the disc brush 4. The locking blocks 37 are correspondingly engaged in the locking slots 42. Each locking slot 42 has a connecting block 43 extending radially along the disc brush 4 on its inner wall. The connecting block 43 is inserted into the through groove 38 of the corresponding locking block 37. The locking block 37 and the disc brush 4 are connected by a second connecting screw 6 that passes through the connecting block 43. 2. A detachable connection is achieved. The tip of the second connecting screw 62 is screwed into the inner wall of the through groove 38, and the head of the second connecting screw 62 abuts against the bottom side wall of the disc brush 4. Through the engagement of multiple sets of locking blocks 37 and locking slots 42, and the locking of connecting blocks 43 with the through groove 38, the movement of the disc brush 4 in the radial direction of the water wheel 3 can be restricted, which helps to position the disc brush 4 on the water wheel 3 and prevents the disc brush 4 from shifting relative to the water wheel 3 when it rotates. The multiple second connecting screws 62 serve to clamp the disc brush 4 to the bottom side of the water wheel 3 and restrict the disc brush 4 from detaching from the water wheel 3 axially.

[0039] Furthermore, the operating rod 2 is a through-type hollow rod body, with a water pipe 7 sleeved inside. The water outlet end of the water pipe 7 is connected to the water inlet end of the nozzle 12 (not shown in the attached figure). The top of the operating rod 2 is provided with a radially penetrating fastening screw 8. By tightening the fastening screw 8, the water pipe 7 can be partially axially fixed inside the operating rod 2, which plays the role of sorting and integrating the water pipe 7 and preventing the water pipe 7 from being exposed and interfering with the brushing operation.

[0040] Furthermore, the operating lever 2 is a telescopic lever (not shown in the attached diagram) so that the operating lever 2 can be stored, reducing the space occupied by the roof cleaning machine.

[0041] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A roof cleaning machine, characterized in that, include: The housing has an operating lever movably connected to its top, and a drive cavity is opened at the bottom of the housing. A water wheel is rotatably provided in the drive cavity, and a disc brush is fixedly connected to the axial end face of the water wheel. The side wall of the housing is provided with: The nozzle has an inlet end for connecting to an external high-pressure water pipe and an outlet end for connecting to the drive chamber. The drain outlet is used to discharge water from the drive chamber; When the high-pressure water flows through the nozzle and impacts the water wheel, it drives the disc brush to rotate synchronously.

2. The roof cleaning machine according to claim 1, characterized in that, The housing has an outwardly extending protrusion on one side, and a venting cavity communicating with the drive cavity is provided at the bottom of the protrusion. The protrusion has a strip-shaped notch along the tangential direction of the drive cavity, and the notch penetrates the two side walls of the vent cavity to form a vent.

3. A roof cleaning machine according to claim 1, characterized in that, The sidewall of the water turbine is provided with a plurality of ratchet teeth evenly distributed in the circumferential direction, and each ratchet tooth constitutes the blade structure of the water turbine.

4. A roof cleaning machine according to claim 3, characterized in that, The top of the water turbine is spaced apart from the inner wall of the drive chamber. A diversion chamber is opened on the top of the water turbine. A central shaft is vertically arranged at the center of the inner wall of the diversion chamber. The end of the central shaft is rotatably connected to the inner wall of the drive chamber. The water turbine has several first diversion ports distributed circumferentially around the central axis, and the disc brush has a corresponding second diversion port that communicates with the first diversion ports.

5. A roof cleaning machine according to claim 4, characterized in that, The diversion cavity is provided with multiple reinforcing ribs evenly distributed circumferentially along the central axis. Each reinforcing rib extends radially along the central axis and connects the central axis with the inner wall of the diversion cavity to form a radial support structure.

6. A roof cleaning machine according to claim 4, characterized in that, The inner wall of the drive cavity is provided with an axial transition groove, and the end of the central shaft is provided with a frustum coaxially. The frustum is rotatably connected in the transition groove. The water wheel and the housing are detachably connected by a first connecting screw that coaxially passes through the central shaft and the frustum. The tip of the first connecting screw passes through the frustum and is screwed to the inner wall of the drive cavity. The head of the first connecting screw abuts against the bottom side wall of the water wheel.

7. A roof cleaning machine according to claim 6, characterized in that, The inner wall of the drive cavity is provided with a top block at its center, the adapter groove is opened on the top block, and the end of the central shaft is flush with the top of the water wheel and abuts against the top block.

8. A roof cleaning machine according to claim 1, characterized in that, The disc brush is coaxially disposed on the bottom side of the water wheel. Multiple radially extending clips are evenly distributed along the circumference of the bottom side wall of the water wheel, and each clip has a through groove along its length. The disc brush has multiple slots distributed circumferentially, and the locking blocks are locked into the slots one by one. Each slot has a connecting block extending radially along the disc brush on its inner wall, and the connecting block is inserted into the through groove of the corresponding locking block. The card block and the disc brush are detachably connected by a second connecting screw that passes through the connecting block. The tip of the second connecting screw is screwed into the inner wall of the through groove, and the head of the second connecting screw abuts against the bottom side wall of the disc brush.

9. A roof cleaning machine according to claim 1, characterized in that, The operating lever is a through-type hollow rod body, with a water pipe sleeved inside. The water outlet end of the water pipe is connected to the water inlet end of the nozzle. The top of the operating lever is provided with a radially penetrating fastening screw, which can be used to axially fix the water pipe in part inside the operating lever by tightening the fastening screw.

10. A roof cleaning machine according to claim 1, characterized in that, The operating lever is a telescopic lever.

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