Intelligent window cleaning machine

Abstract

The utility model discloses an intelligent window-cleaning machine, which relates to the technical field of intelligent window-cleaning machines and comprises a window-cleaning assembly, a wiping mechanism and a detection assembly, the window-cleaning assembly consists of an outer casing, an adsorption tank, a vacuum adsorption mechanism, a straight notch, a traveling mechanism and a cleaning bin, and the wiping mechanism is used for wiping glass in a rolling manner. The detection assembly comprises a collision detection unit and an anti-falling detection unit; the collision detection unit is used for achieving collision detection operation of the window cleaning assembly. The anti-falling detection unit is used for achieving anti-falling detection operation of the window cleaning assembly. According to the window cleaning machine, the window cleaning machine has collision detection and anti-falling detection functions by arranging the detection assembly, the risk of safety accidents during window cleaning is reduced, in addition, by arranging the wiping mechanism, the effect that the cleaning cloth rotates to wipe the window can be achieved, the wiping capacity is further improved, and the more excellent cleaning effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent window cleaning machines, in particular to an intelligent window cleaning machine. Background Art

[0002] Smart window cleaning machine, also known as window cleaning robot, glass cleaning robot, smart window cleaner, smart window cleaner, etc., is a kind of smart household appliance. It can rely on the vacuum pump or fan device at the bottom of itself to firmly adhere to the glass, and then use the force of its own adsorption on the glass to drive the rag at the bottom of the body to wipe off the dirt on the glass.

[0003] The existing intelligent window cleaning machine does not have collision detection and anti-fall functions when actually used, which poses a safety hazard when cleaning windows. Based on this, an intelligent window cleaning machine is provided. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent window cleaning machine in order to solve the problems in the above background.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an intelligent window cleaning machine, comprising a window cleaning assembly consisting of an outer casing, an adsorption groove, a vacuum adsorption mechanism, a straight notch, a traveling mechanism, and a cleaning chamber, wherein the adsorption groove, the straight notch, and the cleaning chamber are formed at the bottom of the outer casing, the adsorption groove is located in the middle of the outer casing, the straight notches are symmetrically distributed on both sides of the adsorption groove, and the cleaning chambers are symmetrically distributed at both ends of the adsorption groove, the vacuum adsorption mechanism is installed on the inner side of the outer casing and extends to the inner side of the adsorption groove, the traveling mechanism is installed on the inner side of the outer casing and extends to the bottom of the outer casing through the adsorption groove, and the cleaning chamber is provided with a wiping mechanism, which is used to realize rolling wiping of the glass;

[0006] The wiping mechanism includes a rotating chuck, a fixed chuck, a supporting roller, a driving motor and a wiping roller;

[0007] The rotating chuck is rotatably connected to one side of the inner wall of the cleaning chamber, the fixed base is fixed to the other side of the inner wall of the cleaning chamber, the driving motor is clamped and fixed to the outside of the fixed base, a plurality of supporting rollers are circumferentially distributed and rotatably connected to the outside of the fixed base and protrude from the outside of the driving motor, one side of the wiping roller is sleeved on the outside of the plurality of supporting rollers, the other side of the wiping roller is clamped to the outside of the rotating chuck, the driving motor is distributed on the inner side of the wiping roller, and a disc connecting portion that is clamped to the output end of the driving motor is formed in the middle of the inner wall of the wiping roller;

[0008] The outer side of the wiping roller is covered with a rag, and the wiping roller is driven by a driving motor to rotate and drive the rag to rotate for wiping the glass;

[0009] The outer housing has arc-shaped grooves formed at the four corner positions of the bottom, and a detection component extending to the inner side of the arc-shaped groove is provided inside the outer housing, and the detection component includes a collision detection unit and an anti-fall detection unit;

[0010] The collision detection unit is used to implement the collision detection operation of the window cleaning assembly;

[0011] The anti-fall detection unit is used to implement the anti-fall detection operation of the window cleaning assembly.

[0012] As a further solution of the present invention: the collision detection unit includes a collision wheel, an L-shaped bracket, a center column, a bearing, a fixed support, a PCB main board, and a first photoelectric baffle;

[0013] The collision wheel is distributed inside the arc-shaped groove, and the top of the collision wheel passes through the inside of the outer casing and is fixedly connected to the L-shaped bracket, and the L-shaped bracket is attached to the bottom of the inner wall of the outer casing;

[0014] The central column is fixed to the top middle portion of the horizontal portion of the L-shaped bracket, the fixed support is mounted on the outside of the central column via a bearing, and the fixed support is clamped and fixed to the convex column at the bottom of the inner wall of the outer casing, and the collision wheel and the L-shaped bracket can rotate around the central column;

[0015] The PCB mainboard is mounted on one end surface of the vertical portion of the L-shaped bracket, the first photoelectric baffle is clamped on the outer side of the top boss of the fixed support, and one end of the first photoelectric baffle extends to the middle of the transmitter and receiver of the photoelectric sensor on the PCB mainboard;

[0016] When the collision wheel collides with the door or window frame, the collision wheel and the L-shaped bracket rotate as a whole with the center column as the center and drive the PCB main board to deflect it, and the photoelectric sensor on the PCB main board generates an electrical signal to achieve the detection effect.

[0017] As a further solution of the present invention: the anti-fall detection unit includes a hemispherical block, a fall rod, a compression spring, a linkage pressure rod, and a second photoelectric baffle;

[0018] The hemispherical block is distributed on the inner side of the collision wheel, the drop rod is fixed to the top of the hemispherical block, the drop rod extends to the top of the collision wheel, the compression spring is distributed between the top of the hemispherical block and the top of the inner wall of the collision wheel and is sleeved on the outside of the drop rod, the linkage pressure rod is clamped on the top of the drop rod, the second photoelectric barrier is distributed on the top of the first photoelectric barrier and is sleeved on the outside of one end of the linkage pressure rod, and the other end of the second photoelectric barrier extends between the transmitter and the receiver of the photoelectric sensor on the PCB mainboard;

[0019] When the hemispherical block exceeds the edge of the door or window, the hemispherical block, the drop rod, and the linkage pressure rod move as a whole under the elastic force of the compression spring. The linkage pressure rod drives the second photoelectric baffle to move, so that the photoelectric sensor on the PCB main board generates an electrical signal, thereby achieving an anti-fall detection effect.

[0020] As a further solution of the present invention: the top of the vertical portion of the L-shaped bracket and the top of the central column are fixedly connected with a limiting top cover, and the outer walls of both sides of the limiting top cover are formed with "L"-shaped side plates for limiting the horizontal movement of the second photoelectric baffle;

[0021] A limiting column that passes through and defines the top of the top cover is formed on the top of the linkage pressure rod, and a rectangular portion that is inclined is formed at one end of the linkage pressure rod. The second photoelectric baffle is sleeved on the outside of the rectangular portion, and an inclined guide groove that matches the outer wall of the rectangular portion is formed at the contact position between the second photoelectric baffle and the rectangular portion.

[0022] As a further solution of the present invention: the first photoelectric baffle and the second photoelectric baffle are both provided with a groove opening at one end close to the PCB main board, the outer housing is formed with a through hole at the top of the arc-shaped groove, the outer diameter of the connection part between the collision wheel and the L-shaped bracket is smaller than the outer diameter of the through hole, and the inner wall diameter of the arc-shaped groove is larger than the outer diameter of the collision wheel.

[0023] As a further solution of the present invention: the linkage pressure rod and the drop rod are fixed by gluing, and the drop rod and the collision wheel are in vertical limited sliding connection.

[0024] As a further solution of the present invention: a torsion spring is provided on one side of the L-shaped bracket, the torsion spring is distributed on the outside of the fixed support, and the torsion spring is sleeved on the outside of the column at the bottom of the inner wall of the outer casing, and the two ends of the torsion spring are respectively attached to one side of the L-shaped bracket and the side of the inner reinforcement rib of the outer casing.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] By setting up detection components, the window cleaning machine has collision detection and anti-fall detection functions, reducing the risk of safety accidents when cleaning windows. In addition, by setting up a wiping mechanism, the rag can be rotated to clean the windows, further improving the wiping ability and achieving better cleaning effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the utility model;

[0028] Figure 2 This is a schematic diagram of the disassembly of the wiping roller of the present utility model;

[0029] Figure 3 Another perspective view of the wiping roller of the present invention in a disassembled state;

[0030] Figure 4 This is a schematic diagram of the disassembly of the drive motor and wiping roller of the utility model;

[0031] Figure 5 This is a structural distribution diagram of the utility model without the walking mechanism inside the outer casing;

[0032] Figure 6 For this utility model Figure 5 A magnified view of the position in the middle;

[0033] Figure 7 This is a schematic structural diagram of the detection component of the present utility model;

[0034] Figure 8 This is a schematic structural diagram of the detection component of the present invention from another perspective;

[0035] Figure 9 This is a schematic diagram of the disassembly of the limited top cover of the utility model;

[0036] Figure 10 This is a schematic diagram of the overall disassembly of the detection component of the present utility model;

[0037] Figure 11 This is another perspective view of the detection component of the present invention in the disassembled state.

[0038] In the figure: 1. Window cleaning assembly; 101. Outer casing; 102. Adsorption groove; 103. Vacuum adsorption mechanism; 104. Straight slot; 105. Traveling mechanism; 106. Cleaning chamber; 107. Wiping mechanism; 1071. Rotating chuck; 1072. Fixed chuck; 1073. Support roller; 1074. Driving motor; 1075. Wiping roller; 108. Arc groove; 2. Detection assembly; 201. Collision wheel; 202. L-shaped bracket; 203. Center column; 204. Bearing; 205. Fixed support; 206. PCB main board; 207. First photoelectric baffle; 208. Hemispherical block; 209. Drop rod; 210. Compression spring; 211. Linkage pressure rod; 212. Second photoelectric baffle; 213. Limiting top cover; 214. Torsion spring. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] See also Figures 1 to 11In an embodiment of the present invention, the intelligent window cleaning machine includes a window cleaning assembly 1 consisting of an outer casing 101, an adsorption groove 102, a vacuum adsorption mechanism 103, a straight notch 104, a walking mechanism 105, and a cleaning chamber 106. The adsorption groove 102, the straight notch 104, and the cleaning chamber 106 are formed at the bottom of the outer casing 101, the adsorption groove 102 is located in the middle of the outer casing 101, the straight notch 104 is symmetrically distributed on both sides of the adsorption groove 102, and the cleaning chamber 106 is symmetrically distributed at both ends of the adsorption groove 102. The vacuum adsorption mechanism 103 is installed on the inner side of the outer casing 101 and extends to the inner side of the adsorption groove 102. The walking mechanism 105 is installed on the inner side of the outer casing 101 and extends to the bottom of the outer casing 101 through the adsorption groove 102. The cleaning chamber 106 is provided with a wiping mechanism 107, which is used to realize rolling wiping of the glass.

[0041] The wiping mechanism 107 includes a rotating chuck 1071, a fixed chuck 1072, a supporting roller 1073, a driving motor 1074 and a wiping roller 1075;

[0042] The rotating chuck 1071 is rotatably connected to one side of the inner wall of the cleaning chamber 106, the fixed base 1072 is fixed to the other side of the inner wall of the cleaning chamber 106, the driving motor 1074 is clamped and fixed to the outer side of the fixed base 1072, and a plurality of supporting rollers 1073 are circumferentially distributed and rotatably connected to the outer side of the fixed base 1072 and protrude from the outer side of the driving motor 1074. One side of the wiping roller 1075 is sleeved on the outer sides of the plurality of supporting rollers 1073, and the other side of the wiping roller 1075 is clamped to the outer side of the rotating chuck 1071. The driving motor 1074 is distributed on the inner side of the wiping roller 1075, and a disc connecting portion that is clamped to the output end of the driving motor 1074 is formed in the middle of the inner wall of the wiping roller 1075;

[0043] The wiping roller 1075 is covered with a rag on the outside, and the wiping roller 1075 is driven by the driving motor 1074 to rotate and drive the rag to rotate for wiping the glass;

[0044] The outer housing 101 has arc-shaped grooves 108 formed at the four corners of the bottom. A detection component 2 extending to the inner side of the arc-shaped groove 108 is provided inside the outer housing 101. The detection component 2 includes a collision detection unit and an anti-fall detection unit.

[0045] The collision detection unit is used to implement the collision detection operation of the window cleaning assembly 1;

[0046] The anti-fall detection unit is used to implement the anti-fall detection operation of the window cleaning assembly 1;

[0047] The collision detection unit includes a collision wheel 201, an L-shaped bracket 202, a central column 203, a bearing 204, a fixed support 205, a PCB main board 206, and a first photoelectric baffle 207;

[0048] The collision wheel 201 is distributed inside the arc-shaped groove 108 and the top of the collision wheel 201 passes through the inside of the outer housing 101 and is fixedly connected to the L-shaped bracket 202. The L-shaped bracket 202 is attached to the bottom of the inner wall of the outer housing 101;

[0049] The center column 203 is fixed to the top of the middle portion of the horizontal portion of the L-shaped bracket 202. The fixed support 205 is installed on the outside of the center column 203 via the bearing 204. The fixed support 205 is fixedly engaged with the protruding column at the bottom of the inner wall of the outer housing 101. The collision wheel 201 and the L-shaped bracket 202 can rotate around the center column 203.

[0050] The PCB main board 206 is mounted on one end surface of the vertical portion of the L-shaped bracket 202. The first photoelectric baffle 207 is clamped to the outer side of the top protrusion of the fixed support 205, and one end of the first photoelectric baffle 207 extends between the transmitter and receiver of the photoelectric sensor on the PCB main board 206.

[0051] When the collision wheel 201 collides with the door or window frame, the collision wheel 201 and the L-shaped bracket 202 rotate as a whole around the central column 203 and drive the PCB mainboard 206 to deflect. The photoelectric sensor on the PCB mainboard 206 generates an electrical signal to achieve the detection effect.

[0052] A torsion spring 214 is provided on one side of the L-shaped bracket 202. The torsion spring 214 is distributed outside the fixed support 205 and is sleeved on the outside of the column at the bottom of the inner wall of the outer housing 101. The two ends of the torsion spring 214 are respectively attached to one side of the L-shaped bracket 202 and the side of the inner reinforcement rib of the outer housing 101.

[0053] The anti-fall detection unit includes a hemispherical block 208, a falling rod 209, a compression spring 210, a linkage pressure rod 211, and a second photoelectric barrier 212;

[0054] The hemispherical block 208 is located inside the collision wheel 201. The drop rod 209 is fixed to the top of the hemispherical block 208. The drop rod 209 extends to the top of the collision wheel 201. The compression spring 210 is located between the top of the hemispherical block 208 and the top of the inner wall of the collision wheel 201 and is sleeved on the outside of the drop rod 209. The linkage pressure rod 211 is clamped on the top of the drop rod 209. The second photoelectric barrier 212 is located on the top of the first photoelectric barrier 207 and is sleeved on the outside of one end of the linkage pressure rod 211. The other end of the second photoelectric barrier 212 extends between the transmitter and receiver of the photoelectric sensor on the PCB mainboard 206.

[0055] When the hemispherical block 208 exceeds the edge of the door or window, the hemispherical block 208, the drop rod 209, and the linkage pressure rod 211 move as a whole under the elastic force of the compression spring 210. The linkage pressure rod 211 drives the second photoelectric baffle 212 to move, causing the photoelectric sensor on the PCB main board 206 to generate an electrical signal, thereby achieving an anti-fall detection effect.

[0056] The linkage pressure rod 211 is fixed to the drop rod 209 by glue, and the drop rod 209 is vertically limited and slidably connected to the collision wheel 201;

[0057] The first photoelectric baffle 207 and the second photoelectric baffle 212 are both provided with groove openings at one end close to the PCB main board 206. The outer housing 101 is formed with a through hole at the top of the arc-shaped groove 108. The outer diameter of the connection between the collision wheel 201 and the L-shaped bracket 202 is smaller than the outer diameter of the through hole, and the inner wall diameter of the arc-shaped groove 108 is larger than the outer diameter of the collision wheel 201.

[0058] In this embodiment, it should be noted that the vacuum adsorption mechanism 103 is used to adsorb the entire window cleaning assembly 1 onto the glass window, and the traveling mechanism 105 is used to realize the movement operation of the window cleaning assembly 1. The vacuum adsorption mechanism 103 and the traveling mechanism 105 are conventional structures of intelligent window cleaning machines in the prior art, and therefore they are not described in detail.

[0059] When the window-wiping assembly 1 is attached to the glass window for wiping, the driving motor 1074 can be started, and the driving motor 1074 drives the wiping roller 1075 to rotate (it should be noted that the support roller 1073 rotates to provide rotation support for the wiping roller 1075, and the rotating chuck 1071 rotates synchronously with the wiping roller 1075). The rotation of the wiping roller 1075 drives the rag on its outer wall to wipe the glass, thereby further improving the wiping ability and achieving a better cleaning effect.

[0060] In the use scenario of wiping doors and windows with frame, since the wheel body of the collision wheel 201 slightly protrudes from the outside of the outer housing 101, when the machine moves to the edge of the door or window and collides with the frame, the wheel body of the collision wheel 201 will collide with the frame before the outer housing 101. At this time, under the action of the collision force, the collision wheel 201 and the L-shaped bracket 203 rotate as a whole with the central column 203 as the center (it should be noted that the fixing bracket 204 is fixed to the convex column at the bottom of the inner wall of the outer housing 101 by screws, and the fixing bracket 204 provides support for the rotation of the collision wheel 201 and the L-shaped bracket 203). When the L-shaped bracket 203 rotates, the linkage pressure rod 211, the second photoelectric baffle 212, and the PCB main board 206 rotate with the L-shaped bracket 203. The first photoelectric baffle 207 and the PCB main board 206 are deflected, causing the light received by the photoelectric sensor receiver on the PCB main board 206 to change, thereby generating an electrical signal. The PCB main board transmits this electrical signal to the main control unit of the window cleaning machine, changing the driving trajectory and realizing the collision detection function. (It should be noted that when the L-shaped bracket 203 rotates, it can twist the torsion spring 214. The deformed torsion spring 214 can provide power for the L-shaped bracket 203 to reset.)

[0061] For the use scenario of wiping frameless doors and windows, under the weight of the machine body, the hemispherical block 208 is squeezed and retracted into the inside of the collision wheel 201. At this time, the compression spring is compressed and shortened. When the machine travels to the edge of the door and window, the hemispherical block 208 exceeds the edge of the door and window before the machine body. After losing the pressure of its own weight, the hemispherical block 208 is slightly popped out under the elastic potential energy of the compression spring. The hemispherical block 208 drives the drop rod 209 to move, and the drop rod 209 drives the second photoelectric baffle 212 to change its position, so that the received light of the photoelectric sensor receiver changes, thereby generating an electrical signal. The PCB mainboard 206 transmits the electrical signal to the main control unit of the window cleaning machine, changes the driving trajectory, and finally realizes anti-fall detection.

[0062] Please refer to Figures 5-11 The top of the vertical portion of the L-shaped bracket 202 and the top of the central column 203 are fixedly connected with a limiting top cover 213, and the outer walls on both sides of the limiting top cover 213 are formed with "L"-shaped side panels for limiting the horizontal movement of the second photoelectric baffle 212;

[0063] A limiting column is formed at the top of the linkage pressure rod 211 and passes through the top of the top cover 213. One end of the linkage pressure rod 211 is formed with an inclined rectangular portion. The second photoelectric baffle 212 is sleeved on the outside of the rectangular portion, and an inclined guide groove matching the outer wall of the rectangular portion is formed at the contact position between the second photoelectric baffle 212 and the rectangular portion.

[0064] In this embodiment, the top cover 213 can provide a limit and guide for the horizontal movement of the second photoelectric barrier 212 and the vertical movement of the linkage pressure rod 211;

[0065] Through the sliding sleeve structure of the rectangular portion and the inclined guide groove, the linkage pressure rod 211 can drive the second photoelectric shielding piece 212 to move horizontally when it moves up and down.

[0066] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent window cleaning machine, comprising a window cleaning assembly (1) consisting of an outer casing (101), an adsorption groove (102), a vacuum adsorption mechanism (103), a straight notch (104), a walking mechanism (105), and a cleaning chamber (106), wherein the adsorption groove (102), the straight notch (104), and the cleaning chamber (106) are formed at the bottom of the outer casing (101), the adsorption groove (102) is located in the middle of the outer casing (101), the straight notch (104) is symmetrically distributed on both sides of the adsorption groove (102), the cleaning chamber (106) is symmetrically distributed at both ends of the adsorption groove (102), the vacuum adsorption mechanism (103) is installed on the inner side of the outer casing (101) and extends to the inner side of the adsorption groove (102), the walking mechanism (105) is installed on the inner side of the outer casing (101) and extends to the bottom of the outer casing (101) through the adsorption groove (102), and is characterized in that: The cleaning chamber (106) is provided with a wiping mechanism (107), and the wiping mechanism (107) is used to achieve rolling wiping of the glass; The wiping mechanism (107) comprises a rotating chuck (1071), a fixed chuck (1072), a supporting roller (1073), a driving motor (1074), and a wiping roller (1075); The rotating chuck (1071) is rotatably connected to one side of the inner wall of the cleaning chamber (106), the fixed base (1072) is fixed to the other side of the inner wall of the cleaning chamber (106), the driving motor (1074) is clamped and fixed to the outside of the fixed base (1072), the plurality of supporting rollers (1073) are circumferentially distributed and rotatably connected to the outside of the fixed base (1072) and protrude from the outside of the driving motor (1074), one side of the wiping roller (1075) is sleeved on the outside of the plurality of supporting rollers (1073), the other side of the wiping roller (1075) is clamped to the outside of the rotating chuck (1071), the driving motor (1074) is distributed on the inside of the wiping roller (1075), and a disc connecting portion clamped to the output end of the driving motor (1074) is formed in the middle of the inner wall of the wiping roller (1075); The wiping roller (1075) is coated with a rag on the outside, and the wiping roller (1075) is driven by a driving motor (1074) to rotate, thereby driving the rag to rotate and thereby wiping the glass; Arc-shaped grooves (108) are formed at the four corner positions of the bottom of the outer housing (101), and a detection component (2) extending to the inside of the arc-shaped groove (108) is provided inside the outer housing (101), and the detection component (2) includes a collision detection unit and an anti-fall detection unit; The collision detection unit is used to implement a collision detection operation of the window wiping assembly (1); The anti-fall detection unit is used to implement an anti-fall detection operation of the window wiping assembly (1).

2. The intelligent window cleaning machine according to claim 1, characterized in that: The collision detection unit comprises a collision wheel (201), an L-shaped bracket (202), a central column (203), a bearing (204), a fixed support (205), a PCB mainboard (206), and a first photoelectric baffle (207); The collision wheel (201) is distributed inside the arc-shaped groove (108), and the top of the collision wheel (201) passes through the inside of the outer casing (101) and is fixedly connected to the L-shaped bracket (202), and the L-shaped bracket (202) is attached to the bottom of the inner wall of the outer casing (101); The central column (203) is fixed to the top middle portion of the horizontal portion of the L-shaped bracket (202); the fixed support (205) is mounted on the outside of the central column (203) via a bearing (204); and the fixed support (205) is fixedly engaged with a convex column at the bottom of the inner wall of the outer casing (101); the collision wheel (201) and the L-shaped bracket (202) can rotate around the central column (203); The PCB main board (206) is mounted on one end face of the vertical portion of the L-shaped bracket (202), the first photoelectric baffle (207) is clamped to the outer side of the top boss of the fixed support (205), and one end of the first photoelectric baffle (207) extends to the middle of the transmitter and receiver of the photoelectric sensor on the PCB main board (206); When the collision wheel (201) collides with the door or window frame, the collision wheel (201) and the L-shaped bracket (202) rotate as a whole with the central column (203) as the center and drive the PCB mainboard (206) to deflect it, and the photoelectric sensor on the PCB mainboard (206) generates an electrical signal to achieve a detection effect.

3. The intelligent window cleaning machine according to claim 2, characterized in that: The anti-fall detection unit comprises a hemispherical block (208), a falling rod (209), a compression spring (210), a linkage pressure rod (211), and a second photoelectric baffle (212); The hemispherical block (208) is distributed on the inner side of the collision wheel (201), the drop rod (209) is fixed on the top of the hemispherical block (208), the drop rod (209) passes through the top of the collision wheel (201), the compression spring (210) is distributed between the top of the hemispherical block (208) and the top of the inner wall of the collision wheel (201) and is sleeved on the outside of the drop rod (209), the linkage pressure rod (211) is clamped on the top of the drop rod (209), the second photoelectric baffle (212) is distributed on the top of the first photoelectric baffle (207) and is sleeved on the outside of one end of the linkage pressure rod (211), and the other end of the second photoelectric baffle (212) extends to the middle of the transmitter and the receiver of the photoelectric sensor on the PCB main board (206); When the hemispherical block (208) exceeds the edge of the door or window, the hemispherical block (208), the drop rod (209), and the linkage pressure rod (211) move as a whole under the elastic force of the compression spring (210), and the linkage pressure rod (211) drives the second photoelectric baffle (212) to move, so that the photoelectric sensor on the PCB main board (206) generates an electrical signal, thereby achieving an anti-fall detection effect.

4. The intelligent window cleaning machine according to claim 3, characterized in that: The top of the vertical portion of the L-shaped bracket (202) and the top of the central column (203) are fixedly connected with a limiting top cover (213), and the outer walls on both sides of the limiting top cover (213) are formed with "L"-shaped side plates for limiting the horizontal movement of the second photoelectric baffle (212); The top of the linkage pressure rod (211) is formed with a limiting column that passes through the top of the limiting top cover (213); one end of the linkage pressure rod (211) is formed with a rectangular portion that is distributed in an inclined manner; the second photoelectric baffle (212) is sleeved on the outside of the rectangular portion; and the contact position between the second photoelectric baffle (212) and the rectangular portion is formed with an inclined guide groove that matches the outer wall of the rectangular portion.

5. The intelligent window cleaning machine according to claim 3, characterized in that: The first photoelectric baffle (207) and the second photoelectric baffle (212) are both provided with a groove opening at one end close to the PCB main board (206); the outer housing (101) is formed with a through hole at the top of the arc-shaped groove (108); the outer diameter of the connection portion between the collision wheel (201) and the L-shaped bracket (202) is smaller than the outer diameter of the through hole; and the inner wall diameter of the arc-shaped groove (108) is larger than the outer diameter of the collision wheel (201).

6. The intelligent window cleaning machine according to claim 3, characterized in that: The linkage pressure rod (211) and the drop rod (209) are fixed by gluing, and the drop rod (209) and the collision wheel (201) are in vertical limited sliding connection.

7. The intelligent window cleaning machine according to claim 2, characterized in that: A torsion spring (214) is provided on one side of the L-shaped bracket (202), the torsion spring (214) being distributed outside the fixed support (205), and the torsion spring (214) being sleeved on the outside of a column at the bottom of the inner wall of the outer casing (101), and the two ends of the torsion spring (214) being respectively attached to one side of the L-shaped bracket (202) and the side surface of the inner reinforcing rib of the outer casing (101).

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