Window cleaning robot with movable scraping strip

Abstract

The invention discloses a window cleaning robot with a movable scraping strip, and belongs to the technical field of cleaning equipment, the window cleaning robot comprises a window cleaning robot main body, a movable groove is formed in the lower surface of the tail of the window cleaning robot main body, a storage cavity is formed in the inner side wall of the movable groove, and an efficient scraping assembly for efficiently scraping residual stains is arranged in the storage cavity. The bottom end of the window cleaning robot body is provided with an adsorption cavity and fixed cleaning cloth, and the movable groove is located behind the fixed cleaning cloth. The fixed cleaning cloth and the efficient scraping assembly are arranged, the fixed cleaning cloth is responsible for basic wiping, the efficient scraping assembly additionally arranged behind the fixed cleaning cloth is specially used for attacking residual water stains and stubborn stains, the progressive cleaning process of first wet wiping and then dry scraping is formed, the surface of glass is kept dry, secondary pollution of the surface of the glass is completely eradicated, and dust accumulation is avoided; and the cleaning quality and efficiency are obviously improved.

Description

Technical Field

[0001] This invention belongs to the field of cleaning equipment technology, specifically relating to a window cleaning robot with a movable scraper. Background Technology

[0002] In order to clean the surface of windows, inefficient and dangerous manual window cleaning has been gradually replaced by efficient and safe machines, and window cleaning robots have emerged.

[0003] When working, window cleaning robots need to adhere to the surface to be cleaned using negative pressure. To ensure that window cleaning robots have strong suction, related technologies are constantly being improved and optimized in terms of air ducts, adsorption components, and negative pressure power sources, so that window cleaning robots can adhere to glass more safely, and the stronger the suction, the cleaner the cleaning will be.

[0004] Existing window cleaning robots mostly use fixed cleaning cloths in conjunction with spray devices installed in front of the robot to wipe the glass. However, the cleaning force is weak, the cleaning quality is low, and in the long run, all the dust will accumulate on the cloth, which will make the glass dirtier and dirtier, affecting the quality and efficiency of cleaning. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a window cleaning robot with a movable scraper.

[0006] The technical solution adopted to solve the above technical problems is: a window cleaning robot with a movable scraper, including a window cleaning robot body, an active groove is provided on the lower surface of the tail of the window cleaning robot body, a storage cavity is provided on the inner side wall of the active groove, an efficient scraping component for efficiently scraping residual stains is provided in the storage cavity, an adsorption cavity and a fixed cloth are provided at the bottom of the window cleaning robot body, and the active groove is located behind the fixed cloth;

[0007] The high-efficiency scraping assembly includes a T-shaped plate fixed to the inner wall of the storage cavity. The lower surface of the T-shaped plate is rotatably connected to symmetrically arranged scrapers via a rotating column. All scrapers are exposed in the movable groove. The outer side wall of the scraper near the rotating column is circumferentially toothed. The lower surface of the T-shaped plate is symmetrically provided with transversely arranged limiting strip holes. A drive mechanism is installed on the T-shaped plate to drive the two scrapers to reciprocate relative to each other. The bottom end of each scraper is equipped with a quick-release wiping mechanism for easy disassembly and cleaning.

[0008] Furthermore, the driving mechanism includes a servo motor fixed to the top of the T-shaped plate. The output end of the servo motor passes through the bottom end of the T-shaped plate and is fixedly connected to an eccentric rod. The other end of the eccentric rod is rotatably connected to a connecting rod one. The other end of the connecting rod one is rotatably connected to a rotating connector. The upper and lower inner walls of the rotating connector are rotatably connected to two connecting rods two. The other end of each connecting rod two is rotatably connected to a rack. The two racks are arranged laterally symmetrically.

[0009] Furthermore, each rack has a limiting block fixedly attached to its midpoint, and each limiting block has a stop block fixedly attached to its top. The sidewalls of each limiting block are slidably connected to the inner sidewalls of adjacent limiting strip holes. Each stop block is located above the T-shaped plate. Each rack meshes with the teeth on the adjacent side. The length of each limiting strip hole is not less than the length of the rack.

[0010] Through the above technical solution, the combination of servo motor driving eccentric rod and connecting rod changes the motion form. With the physical constraint chain formed by limit strip hole, limit block and stop block, the movement trajectory of rack is precisely limited. With the rotating column as the fulcrum, it drives the two scrapers and quick-release wiping mechanism to reciprocate at high frequency, generating high frequency micro-vibration friction effect, which significantly improves the fit to the micro-concave and convex surfaces of glass. It is especially suitable for cleaning frosted glass / frosted surfaces. It absorbs water and scrapes away the stains left after wiping with a fixed cloth, which significantly improves the quality and efficiency of cleaning.

[0011] Furthermore, the quick-release wiping mechanism includes a strip-shaped shell fixed to the lower surface of the scraper and a separately and independently set fixed strip plate. The strip-shaped shell has an internal movable cavity. A limiting plate is fixed to the top of the fixed strip plate. The limiting plate slides in conjunction with the movable cavity. A spring piece for pressing the limiting plate is fixed to the top of the inner wall of the movable cavity. Water-absorbing cotton is glued and fixed to the lower surface of the fixed strip plate. A locking mechanism for limiting the position of the limiting plate is provided at one end opening of the strip-shaped shell.

[0012] With the above technical solution, when the quick-release wiping mechanism swings, the locking mechanism limits the movement of the limiting plate in the movable cavity, preventing the limiting plate from sliding out of the movable cavity during the swinging operation and affecting the normal operation of the mechanism. The spring sheet presses the limiting plate to improve the tightness of the water-absorbing cotton against the window surface, and further improves the friction of the water-absorbing cotton wiping.

[0013] Furthermore, the locking mechanism includes a cover plate rotatably connected to the side wall of the opening of the strip shell, a slot formed on the surface of the opening of the strip shell, and a locking block provided on the side wall of the cover plate facing the strip shell, the locking block engaging with the slot.

[0014] With the above technical solution, when the limiting plate is moved and limited, the cover plate is locked by engaging with the slot of the strip shell through the locking block. When the absorbent cotton needs to be disassembled for replacement or cleaning, the locking can be released by forcefully flipping the cover plate to disengage the locking block from the slot, and the absorbent cotton can be pulled out. The structure is simple and can be disassembled and assembled without tools, thus improving maintenance efficiency.

[0015] Furthermore, the lengths of the fixed strip and the absorbent cotton are both one-quarter of the length of the movable groove, and the lower surface of the absorbent cotton is provided with several strip grooves.

[0016] With the above technical solution, the lengths of the fixed strip and the absorbent cotton are both one-quarter of the length of the movable groove, so that the two absorbent cottons can rotate 180 degrees back and forth around the rotating column as the fulcrum, which can cover the travel width of the robot cleaning and avoid cleaning dead corners.

[0017] The beneficial effects of this invention are as follows:

[0018] (1) By setting a fixed cloth and a high-efficiency scraping component, the fixed cloth is responsible for basic wiping, while the high-efficiency scraping component added behind it is specifically designed to deal with residual water stains and stubborn dirt, forming a progressive cleaning process of first wet wiping and then dry scraping, keeping the glass surface dry, preventing secondary pollution of the glass surface, avoiding dust accumulation, and significantly improving the quality and efficiency of cleaning.

[0019] (2) The quick-release wiping mechanism has a simple structure and can lock and remove the cleaning cotton without tools, thus improving maintenance efficiency.

[0020] (3) By setting the movable groove and fixed strip, the length of the fixed strip and the water-absorbing cotton is one-quarter of the length of the movable groove. The two water-absorbing cottons work together to swing back and forth, which can cover the width of the robot's cleaning stroke and avoid cleaning dead corners. At the same time, the water-absorbing cotton can be completely stored in the movable groove, which not only improves the overall appearance of the robot, but also protects the high-efficiency scraping component 2. Attached Figure Description

[0021] Figure 1 This is a top-view perspective view of a window cleaning robot with a movable scraper according to the present invention;

[0022] Figure 2 This is a bottom-view perspective view of a window cleaning robot with a movable scraper according to the present invention;

[0023] Figure 3 This is a bottom-view perspective view of the main body of a window cleaning robot with a movable scraper according to the present invention.

[0024] Figure 4 This is a perspective view of a high-efficiency scraping component of a window cleaning robot with a movable scraper according to the present invention;

[0025] Figure 5 This is a three-dimensional view of the T-shaped plate of a window cleaning robot with a movable scraper according to the present invention;

[0026] Figure 6 This is a perspective view of the drive mechanism of a window cleaning robot with a movable scraper according to the present invention;

[0027] Figure 7 This is a structural diagram of the quick-release wiping mechanism of a window cleaning robot with a movable scraper according to the present invention.

[0028] Reference numerals: 1. Main body of the window cleaning robot; 2. High-efficiency scraping component; 3. Fixed cloth; 4. Adsorption chamber; 101. Movable groove; 102. Storage chamber; 201. T-shaped plate; 202. Rotating column; 203. Scraper; 204. Teeth; 205. Drive mechanism; 206. Quick-release wiping mechanism; 2011. Limiting strip hole; 2051. Servo motor; 2052. Eccentric rod; 2053. Link 1; 2054. Rotating connector; 2055. Link 2; 2056. Rack; 2057. Limiting block; 2058. Stop block; 2061. Strip shell; 2062. Movable chamber; 2063. Spring; 2064. Limiting plate; 2065. Fixed strip plate; 2066. Absorbent cotton; 2067. Cover plate; 2068. Locking block; 2069. Locking groove. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0030] like Figures 1-7 As shown, this embodiment of a window cleaning robot with a movable scraper includes a window cleaning robot body 1. The lower surface of the tail of the window cleaning robot body 1 has an active groove 101. The inner side wall of the active groove 101 has a storage cavity 102. The storage cavity 102 has an efficient scraping component 2 for efficiently scraping residual stains. The bottom of the window cleaning robot body 1 has an adsorption cavity 4 and a fixed cloth 3. The active groove 101 is located behind the fixed cloth 3. When the window cleaning robot body 1 moves, the front spraying device sprays, the fixed cloth 3 is responsible for basic wiping, and the efficient scraping component 2 added at the rear is specifically designed to deal with residual water stains and stubborn stains, forming a progressive cleaning process of wet wiping followed by dry scraping, thus preventing secondary pollution of the glass surface.

[0031] The high-efficiency scraping assembly 2 includes a T-shaped plate 201 fixed to the inner wall of the storage cavity 102. The lower surface of the T-shaped plate 201 is rotatably connected to symmetrically arranged scrapers 203 via a rotating column 202. All scrapers 203 are exposed in the movable groove 101. The outer side wall of the scraper 203 near the rotating column 202 is provided with teeth 204 along the circumference. The lower surface of the T-shaped plate 201 is symmetrically provided with transversely arranged limiting strip holes 2011. A drive mechanism 205 is installed on the T-shaped plate 201 to drive the two scrapers 203 to reciprocate relative to each other. The bottom end of each scraper 203 is provided with a quick-release wiping mechanism 206 for easy disassembly and cleaning.

[0032] The drive mechanism 205 includes a servo motor 2051 fixed to the top of the T-shaped plate 201. An eccentric rod 2052 is fixedly connected to the output end of the servo motor 2051 through the bottom end of the T-shaped plate 201. A connecting rod 2053 is rotatably connected to the other end of the eccentric rod 2052. A rotating connector 2054 is rotatably connected to the other end of the connecting rod 2053. Two connecting rods 2055 are rotatably connected to the upper and lower inner walls of the rotating connector 2054. A rack 2056 is rotatably connected to the other end of each connecting rod 2055. The rack 2056 is arranged symmetrically in the transverse direction. The midpoint of the top of each rack 2056 is fixedly connected to a limit block 2057. The top of each limit block 2057 is fixedly connected to a stop block 2058. The sidewalls of each limit block 2057 are slidably connected to the inner sidewalls of the adjacent limit strip holes 2011. The stop blocks 2058 are all located above the T-shaped plate 201. Each rack 2056 meshes with the teeth 204 on the adjacent side. The length of each limit strip hole 2011 is not less than the length of the rack 2056, ensuring sufficient sliding stroke of the limit block 2057.

[0033] The servo motor 2051 drives the combination of the eccentric rod 2052 and the connecting rod to change the motion form. With the help of the physical constraint chain formed by the limiting strip hole 2011, the limiting block 2057, and the stop block 2058, the movement trajectory of the rack 2056 is precisely limited. With the rotating column 202 as the fulcrum, the two scrapers 203 and the quick-release wiping mechanism 206 are driven to reciprocate in a high-frequency swing motion, which generates a high-frequency micro-vibration friction effect. This significantly improves the fit to the micro-concave and convex surfaces of the glass, and is especially suitable for cleaning frosted glass / frosted surfaces. It absorbs water and scrapes away the stains left after wiping with the fixed cloth 3, which significantly improves the quality and efficiency of cleaning. During operation, the servo motor 2051 drives the eccentric rod 2052 to rotate. In conjunction with the transmission of the connecting rod 1 2053, the rotating connecting piece 2054 and the connecting rod 2055, the racks 2056 on both sides move. The stop block 2058 slides along the limiting strip hole 2011, thereby driving the two racks 2056 to move back and forth synchronously. Through the meshing transmission of the teeth 204, the scraper 203 is driven to swing back and forth around the rotating column 202 as the rotation fulcrum. The swinging quick-release wiping mechanism 206 scrapes the stains remaining on the window surface, enhances the wiping friction, absorbs the sewage, keeps the window surface dry, avoids secondary pollution, and significantly improves the cleaning effect.

[0034] The quick-release wiping mechanism 206 includes a strip-shaped shell 2061 fixed to the lower surface of the scraper 203 and a separately and independently set fixing strip 2065. The strip-shaped shell 2061 has an internal movable cavity 2062. A limiting plate 2064 is fixedly attached to the top of the fixing strip 2065, and the limiting plate 2064 slides in conjunction with the movable cavity 2062. A spring piece 2063 is fixedly attached to the top of the inner wall of the movable cavity 2062 to press against the limiting plate 2064. A water-absorbing cotton 2066 is adhered and fixed to the lower surface of the fixing strip 2065. One end opening of the strip-shaped shell 2061 is provided with a support for the limiting plate 2064. The locking mechanism of 064 limits the movement of the limit plate 2064 in the movable cavity 2062 when the quick-release wiping mechanism 206 is swinging. This prevents the limit plate 2064 from sliding out of the movable cavity 2062 during the swinging operation, thus affecting the normal operation of the mechanism. During operation, the spring piece 2063 presses the limit plate 2064 to increase the tightness of the water-absorbing cotton 2066 against the window surface, further increasing the friction of the water-absorbing cotton 2066 during wiping. At the same time, it improves the fit to the micro-concave and convex surfaces of the glass, adapting to different types of window glass and improving the practicality of the device.

[0035] The locking mechanism includes a cover plate 2067 rotatably connected to the side wall of the opening of the strip shell 2061, and a slot 2069 formed on the surface of the opening of the strip shell 2061. The cover plate 2067 has a locking block 2068 facing the side wall of the strip shell 2061. The locking block 2068 engages with the slot 2069. When the limiting plate 2064 is moved and limited, the cover plate 2067 engages with the slot 2069 of the strip shell 2061 through the locking block 2068, thus locking. When the absorbent cotton 2066 needs to be disassembled for replacement or cleaning, the lock can be released by forcefully flipping the cover plate 2067 to disengage the locking block 2068 from the slot 2069, and the absorbent cotton 2066 can be pulled out. The structure is simple and can be disassembled and assembled without tools, improving maintenance efficiency.

[0036] The lengths of the fixed strip 2065 and the absorbent cotton 2066 are both one-quarter of the length of the movable groove 101. Several strip grooves are formed on the lower surface of the absorbent cotton 2066. The strip grooves increase the friction of the absorbent cotton 2066. The fact that the lengths of the fixed strip 2065 and the absorbent cotton 2066 are both one-quarter of the length of the movable groove 101 allows the two absorbent cotton 2066 to rotate 180 degrees back and forth around the rotating column 202 as a fulcrum, which can cover the cleaning stroke width of the robot and avoid cleaning dead corners. When the robot is being transported or idle, the fixed strip 2065 and the absorbent cotton 2066 can be completely stored in the movable groove 101, which improves the overall appearance of the robot and protects the high-efficiency scraping component 2, preventing damage to the fragile parts of the high-efficiency scraping component 2 in the event of a collision and improving the service life of the component.

[0037] The working principle of this embodiment is as follows: When in use, the main body 1 of the window cleaning robot is placed on the glass surface of the window, and the main body 1 of the window cleaning robot is adsorbed onto the glass through the adsorption chamber 4. When wiping, the spraying device in front of the main body 1 of the window cleaning robot sprays, and the fixed wiping cloth 3 performs basic wiping. While the main body 1 of the window cleaning robot moves forward, the high-efficiency scraping component 2 on the rear side treats residual water stains and stubborn dirt.

[0038] During the scraping process, the servo motor 2051 drives the eccentric rod 2052 to rotate. In conjunction with the transmission of the connecting rod 1 2053, the rotating connector 2054, and the connecting rod 2055, the racks 2056 on both sides move. The stop block 2058 slides along the limiting strip hole 2011, thereby driving the two racks 2056 to move back and forth synchronously. Through the meshing transmission of the teeth 204, the scraper 203 is driven to swing back and forth around the rotating column 202 as the rotation fulcrum. This drives the absorbent cotton 2066 to scrape the stains remaining after wiping and absorb the wastewater, keeping the window surface dry, avoiding secondary pollution, and significantly improving the cleaning effect.

[0039] When replacing or cleaning the absorbent cotton 2066, simply flip the cover plate 2067 forcefully to release the locking block 2068 from the slot 2069, and then pull out the absorbent cotton 2066.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A window cleaning robot with a movable scraper, comprising a window cleaning robot body (1), characterized in that: The lower surface of the tail of the window cleaning robot body (1) is provided with an active groove (101), and the inner wall of the active groove (101) is provided with a storage cavity (102). The storage cavity (102) is provided with an efficient scraping component (2) for scraping residual stains. The bottom of the window cleaning robot body (1) is provided with an adsorption cavity (4) and a fixed cloth (3). The active groove (101) is located behind the fixed cloth (3). The high-efficiency scraping assembly (2) includes a T-shaped plate (201) fixed to the inner wall of the storage cavity (102). The lower surface of the T-shaped plate (201) is rotatably connected to symmetrically arranged scrapers (203) via a rotating column (202). The scrapers (203) are all exposed in the movable groove (101). The outer side wall of the scraper (203) near the rotating column (202) is provided with teeth (204) along the circumference. The lower surface of the T-shaped plate (201) is symmetrically provided with transversely arranged limiting strip holes (2011). The T-shaped plate (201) is equipped with a drive mechanism (205) that drives the two scrapers (203) to reciprocate relative to each other. The bottom end of the scrapers (203) is equipped with a quick-release wiping mechanism (206) that is easy to disassemble and clean.

2. The window cleaning robot with a movable scraper according to claim 1, characterized in that, The drive mechanism (205) includes a servo motor (2051) fixed to the top of the T-shaped plate (201). The output end of the servo motor (2051) passes through the bottom end of the T-shaped plate (201) and is fixedly connected to an eccentric rod (2052). The other end of the eccentric rod (2052) is rotatably connected to a connecting rod (2053). The other end of the connecting rod (2053) is rotatably connected to a rotating connector (2054). The upper and lower inner walls of the rotating connector (2054) are rotatably connected to two connecting rods (2055). The other end of each connecting rod (2055) is rotatably connected to a rack (2056). The two racks (2056) are arranged laterally symmetrically.

3. A window cleaning robot with a movable scraper according to claim 2, characterized in that, Each rack (2056) has a limiting block (2057) fixedly connected to its midpoint. Each limiting block (2057) has a stop block (2058) fixedly connected to its top. The sidewalls of each limiting block (2057) are slidably connected to the inner sidewalls of the adjacent limiting slots (2011). Each stop block (2058) is located above the T-shaped plate (201). Each rack (2056) meshes with the teeth (204) on the adjacent side. The length of each limiting slot (2011) is not less than the length of the rack (2056).

4. A window cleaning robot with a movable scraper according to claim 1, characterized in that, The quick-release wiping mechanism (206) includes a strip shell (2061) fixed to the lower surface of the scraper (203) and a separately and independently set fixing plate (2065). The strip shell (2061) has an internal movable cavity (2062). A limiting plate (2064) is fixedly connected to the top of the fixing plate (2065). The limiting plate (2064) slides with the movable cavity (2062). A spring piece (2063) for pressing the limiting plate (2064) is fixedly connected to the top of the inner wall of the movable cavity (2062). A water-absorbing cotton (2066) is glued and fixed to the lower surface of the fixing plate (2065). A locking mechanism for limiting the limiting plate (2064) is provided at one end of the strip shell (2061).

5. A window cleaning robot with a movable scraper according to claim 4, characterized in that, The locking mechanism includes a cover plate (2067) rotatably connected to the side wall of the opening of the strip shell (2061) and a slot (2069) formed on the surface of the opening of the strip shell (2061). The cover plate (2067) is provided with a locking block (2068) on the side wall facing the strip shell (2061), and the locking block (2068) is engaged with the slot (2069).

6. A window cleaning robot with a movable scraper according to claim 4, characterized in that, The lengths of the fixed strip (2065) and the absorbent cotton (2066) are both one-quarter of the length of the movable groove (101), and the lower surface of the absorbent cotton (2066) is provided with several strip grooves.

Images