Building outer wall cleaning equipment

Abstract

The invention provides building outer wall cleaning equipment, and relates to the field of building outer wall cleaning tools, the building outer wall cleaning equipment comprises a safety rope and a support connecting plate, and the two ends of the support connecting plate are respectively welded with a traction frame; the safety rope is movably connected with the traction frame; a cleaning supporting plate is fixedly connected to the lower portions of the two traction frames, and a rolling brush groove of a rectangular structure is formed in the cleaning supporting plate. According to the cleaning equipment, the equipment can be automatically locked under the action of the self-locking structure when an accident occurs in the high altitude, the situation that the cleaning equipment loses control and rapidly falls down along the safety rope to cause the accident is avoided, and the problem that the lifting device or the safety rope is accidentally loosened from a worker is solved; the problems that when a remote control cleaning machine is used for cleaning, if the machine breaks down or is not stable in positioning, the cleaning machine is separated from the outer wall of the building, and even safety accidents are caused are solved.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning tools for building exterior walls, and in particular to equipment for cleaning building exterior walls. Background Art

[0002] In order to keep the exterior walls of buildings clean, they need to be cleaned regularly. In the existing exterior wall cleaning methods, cleaning is generally done manually with handheld cleaning tools. When cleaning at a certain height, workers need to be transported with the help of safety ropes or lifting platforms to clean the exterior surfaces of different areas.

[0003] As for the existing methods of cleaning the exterior walls of high-rise buildings, when the workers are transported by means of a lifting device or a safety rope, if the lifting device or the safety rope accidentally loosens from the workers, the workers and the transport device will slide down quickly along the rope, which can easily cause a safety accident. When using a remote-controlled cleaning machine for cleaning, if the machine fails or is not positioned firmly, the cleaning machine will be separated from the exterior wall of the building. If it falls, the cleaning machine will be damaged and may even cause a safety accident. Summary of the invention

[0004] In view of this, the present invention provides a building exterior wall cleaning device to solve the problem that in the existing high-rise building exterior wall cleaning method, when the staff are transported by means of a lifting device or a safety rope, the lifting device or the safety rope accidentally loosens with the staff, causing the staff and the transport device to slide down quickly along the rope, which can easily cause a safety accident. When using a remote-controlled cleaning machine for cleaning, if the machine fails or is not positioned firmly, the cleaning machine will be separated from the building exterior wall. If it falls, the cleaning machine will be damaged and even cause a safety accident.

[0005] The present invention provides a building exterior wall cleaning device, which specifically includes: a safety rope, a bracket connecting plate, each end of the bracket connecting plate is welded with a pulling frame; the safety rope is movably connected to the pulling frame; a cleaning support plate, the cleaning support plate is fixedly connected to the bottom of the two pulling frames, a rectangular roller brush groove is provided on the cleaning support plate, two support wheel side grooves are provided on the cleaning support plate, and a balancing support wheel is rotatably connected in the support wheel side groove through a bearing; a lifting drive component, the lifting drive component is fixedly connected to the upper surface of the bracket connecting plate; a cleaning roller brush, the cleaning roller brush is rotatably connected to the front of the cleaning support plate, and the cleaning roller brush is located inside the roller brush groove; a roller brush driving component is connected to the front surface of the cleaning support plate by bolts, and the roller brush driving component is connected and drives the cleaning roller brush through a belt drive; a cleaning liquid supply component is provided on the cleaning support plate, and the cleaning The liquid supply assembly includes a liquid storage tank, an electric liquid valve and a liquid outlet pipe, the liquid storage tank is connected to the front surface of the cleaning support plate by screws, the liquid outlet pipe is fixedly connected to the bottom of the liquid storage tank by a bracket, and the liquid outlet pipe is located above the cleaning roller brush, and a liquid outlet hole is opened through the wall of the liquid outlet pipe, the liquid storage tank and the liquid outlet pipe are connected by a pipeline, and the electric liquid valve is installed on the pipeline; a waste liquid recovery assembly is provided on the cleaning support plate, and the waste liquid recovery assembly includes an outer wall scraper, a roller brush scraper and a waste liquid tank, the outer wall scraper is installed on the rear surface of the cleaning support plate by screws; the roller brush scraper is installed on the front surface of the cleaning support plate by screws; the outer wall scraper is connected to the roller brush scraper through a pipeline; the waste liquid tank is fixedly connected to the front surface of the cleaning support plate, and the waste liquid tank is located below the roller brush scraper, and the roller brush scraper is connected to the waste liquid tank through a pipeline.

[0006] Furthermore, a brake lock platform is fixedly connected to the upper surface of the pulling frame, and an arc-shaped lock platform arc groove is opened on the upper surface of the brake lock platform. A brake tooth is fixedly connected to the arc surface of the lock platform arc groove, and the tooth end of the brake tooth faces forward and upward.

[0007] Furthermore, the upper surface of the pulling frame is connected to a pulling wheel frame by welding, and the pulling wheel frame is rotatably connected to a brake pulley and a driving pulley inside. The safety rope is tightly connected to the brake pulley and the driving pulley, and the brake pulley and the driving pulley clamp the safety rope, and the inner end of the driving pulley is fixedly connected to the rotating shaft of the lifting drive component.

[0008] Furthermore, a brake disc is fixedly connected to the outer end of the shaft of the brake pulley, and four disc guide openings are opened on the brake disc wheel body. The disc guide openings are rectangular grooves, the disc guide openings are perpendicular to the axis of the disc guide openings, and the outer ends of the disc guide openings are connected to the outer wheel surface of the brake disc.

[0009] Furthermore, a brake column is slidably connected inside the wheel guide port, and the inner end of the brake column is fixedly connected to a column reset spring, the inner end of the column reset spring is fixedly connected to the inner end of the wheel guide port, and the outer end of the brake column is processed with a hook-shaped end with a hook-shaped structure.

[0010] Furthermore, two support plate push sleeves are fixedly connected on the front surface of the cleaning support plate, and a movable push rod is slidably connected to the support plate push sleeve. A positioning wire ring is provided at the front end of the movable push rod, and the positioning wire ring is connected to a safety rope. The rear end of the movable push rod is fixedly connected to a push-up inner spring, and the rear end of the push-up inner spring is fixedly connected to the support plate push sleeve.

[0011] Furthermore, an outer wall oblique scraper is provided above the outer wall scraper strip, the outer wall oblique scraper faces upward and rearward, and an outer reflow groove is provided below the rear surface of the outer wall scraper strip.

[0012] Furthermore, an inner reflux groove is provided below the front surface of the roller brush scraper, and the outer reflux groove is connected to the inner reflux groove through a pipe. A roller brush oblique scraper is provided above the roller brush scraper, and the roller brush oblique scraper is tilted backward, and the upper edge of the roller brush oblique scraper fits tightly with the cleaning roller brush.

[0013] The present invention provides a building exterior wall cleaning device, which has the following beneficial effects: 1. The cleaning device of the present invention can be used for cleaning the exterior walls of high-rise buildings. The cleaning device is pulled by a safety rope, and multiple sets of driving parts in the cleaning device are remotely controlled to control the cleaning device to rise or fall along the safety rope, thereby realizing the lifting and lowering control of the cleaning device. No manual operation is required, labor costs are saved, and the probability of safety accidents is reduced.

[0014] 2. When the cleaning device of the present invention is working, the upper and lower ends of the safety rope are fixed to the building and the rope body is kept taut. Through the tension of the safety rope and the supporting force of the supporting structure in front of the cleaning support plate, a thrust is applied to the cleaning support plate toward the wall surface. An automatic roller brush is provided in the cleaning device to brush and clean the outer wall surface. Cleaning liquid can be applied to the roller brush through the cleaning liquid supply component to improve the cleaning effect and to brush away stubborn stains on the outer wall surface. Through the action of the waste liquid recovery component, the roller brush and excess water stains on the outer wall surface can be scraped and collected to reduce the residual water stains on the outer wall surface of the building. At the same time, the dust and stains on the outer surface of the roller brush are separated together with the sewage to avoid the accumulation of stains on the cleaning roller brush.

[0015] 3. In the present invention, the cleaning equipment and the safety rope are connected through the components on the pulling frame, and the rotation of the pulley in the pulling wheel frame is controlled by the driving member to control the cleaning equipment to perform lifting and lowering movements. During this process, the safety rope is tightly connected with the brake pulley and the driving pulley, and the connection is maintained without sliding under the action of friction. When the driving structure or control system in the equipment fails, the equipment will fall rapidly along the safety rope, causing the brake pulley and the driving pulley to roll rapidly. During this process, the locking structure formed by the brake wheel disc and the brake lock platform is actuated, thereby locking the brake pulley. Under the action of the friction between the brake pulley and the safety rope, the equipment stops falling. The cleaning equipment in the present application can automatically lock the equipment in the event of an accident at high altitude through the action of the self-locking structure, thereby preventing the cleaning equipment from losing control and falling rapidly along the safety rope to cause an accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the rear of an embodiment of the present invention.

[0018] Figure 3 An embodiment of the present invention Figure 1 Schematic diagram of the left view structure.

[0019] Figure 4 It is a schematic structural diagram of a cleaning support plate according to an embodiment of the present invention.

[0020] Figure 5 It is a schematic structural diagram of a bracket connecting plate according to an embodiment of the present invention.

[0021] Figure 6 It is a schematic structural diagram of a cleaning liquid supply assembly according to an embodiment of the present invention.

[0022] Figure 7 An embodiment of the present invention Figure 2 Schematic diagram of the structure with a partial enlargement at A.

[0023] Figure 8 An embodiment of the present invention Figure 4 Schematic diagram of the structure with a partial enlargement at point B.

[0024] Fig. 9 An embodiment of the present invention Figure 5 Schematic diagram of the structure with a partial enlargement at C.

[0025] Fig.10 An embodiment of the present invention Figure 5 Schematic diagram of the structure with a partial enlargement at D.

[0026] Reference numerals list 1. Safety rope; 2. Bracket connecting plate; 201. Pulling frame; 202. Braking lock platform; 203. Locking platform arc groove; 204. Braking tooth; 205. Pulling wheel frame; 206. Braking pulley; 207. Driving pulley; 208. Braking wheel disc; 209. Wheel disc guide; 210. Braking clamp column; 211. Hook-shaped end; 212. Clamp column reset spring; 3. Cleaning support plate; 301. Rolling brush groove; 302. Support wheel side groove; 303. Balance support wheel; 304. Support plate push sleeve; 30 5. Movable push rod; 306. Positioning wire ring; 307. Push-up inner spring; 4. Lifting drive member; 5. Cleaning roller brush; 6. Roller brush drive member; 7. Cleaning liquid supply assembly; 701. Liquid storage tank; 702. Electric liquid valve; 703. Liquid outlet pipe; 704. Liquid outlet hole; 8. Waste liquid recovery assembly; 801. External wall scraper strip; 802. Roller brush scraper strip; 803. Waste liquid tank; 804. External wall oblique scraper; 805. External reflux groove; 806. Roller brush oblique scraper; 807. Internal reflux groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention.

[0028] Please refer to Figures 1 to 10 As shown: Embodiment 1: The present invention provides a building exterior wall cleaning device, including a safety rope 1, a bracket connecting plate 2, and a pulling frame 201 is welded at both ends of the bracket connecting plate 2; the safety rope 1 is movably connected to the pulling frame 201; a cleaning support plate 3, the cleaning support plate 3 is fixedly connected to the bottom of the two pulling frames 201, and a rectangular roller brush groove 301 is opened on the cleaning support plate 3, and two support wheel side grooves 302 are opened on the cleaning support plate 3, and a balance support wheel 303 is rotatably connected in the support wheel side groove 302 through a bearing; a lifting drive The moving part 4, the lifting driving part 4 is fixedly connected to the upper surface of the bracket connecting plate 2; the cleaning roller brush 5, the cleaning roller brush 5 is rotatably connected to the front of the cleaning support plate 3, and the cleaning roller brush 5 is located inside the roller brush groove 301; the roller brush driving part 6 is connected to the front surface of the cleaning support plate 3 by bolts, and the roller brush driving part 6 is connected and drives the cleaning roller brush 5 through a belt drive. The cleaning roller brush 5 is driven by the roller brush driving part 6 to rotate counterclockwise when viewed from the left to clean the outer wall of the building; a cleaning liquid supply component 7 is provided on the cleaning support plate 3, and the cleaning liquid supply component 7 is provided on the cleaning support plate 3. The liquid supply assembly 7 includes a liquid storage tank 701, an electric liquid control valve 702 and a liquid outlet pipe 703. The liquid storage tank 701 is connected to the front surface of the cleaning support plate 3 by screws, and the liquid outlet pipe 703 is fixedly connected to the bottom of the liquid storage tank 701 by a bracket, and the liquid outlet pipe 703 is located above the cleaning roller brush 5. A liquid outlet hole 704 is opened on the wall of the liquid outlet pipe 703. The liquid storage tank 701 and the liquid outlet pipe 703 are connected by a pipeline, and the electric liquid control valve 702 is installed on the pipeline; the cleaning support plate 3 is provided with a waste liquid recovery assembly Component 8, the waste liquid recovery component 8 includes an outer wall scraper 801, a roller brush scraper 802 and a waste liquid tank 803, the outer wall scraper 801 is installed on the rear surface of the cleaning support plate 3 by screws; the roller brush scraper 802 is installed on the front surface of the cleaning support plate 3 by screws; the outer wall scraper 801 is connected to the roller brush scraper 802 by a pipeline; the waste liquid tank 803 is fixedly connected to the front surface of the cleaning support plate 3, and the waste liquid tank 803 is located below the roller brush scraper 802, and the roller brush scraper 802 is connected to the waste liquid tank 803 by a pipeline.

[0029] Among them; the cleaning support plate 3 is lifted by fixing the pulling frame 201 with the cleaning support plate 3, the upper surface of the pulling frame 201 is connected with a pulling wheel frame 205 by welding, and the pulling wheel frame 205 is internally connected with a brake pulley 206 and a driving pulley 207, the safety rope 1 is tightly connected to the brake pulley 206 and the driving pulley 207, and the brake pulley 206 and the driving pulley 207 clamp the safety rope 1, and the inner end of the shaft of the driving pulley 207 is fixedly connected to the rotating shaft of the lifting drive member 4; a mobile power supply is also provided on the cleaning support plate 3, through the mobile power supply The lifting drive component 4, the roller brush drive component 6 and the electric control liquid valve 702 are powered, and the lifting drive component 4, the roller brush drive component 6 and the electric control liquid valve 702 are connected to an external remote control device via wireless signals; when the control device is lifting and lowering, the lifting drive component 4 is controlled by the wireless remote control device, and the rotation of the rotating shaft of the lifting drive component 4 drives the two driving pulleys 207 to rotate. Through the friction between the driving pulley 207 and the safety rope 1, the bracket connecting plate 2 and the cleaning support plate 3 are lifted and lowered in a straight line along the safety rope 1, thereby effectively controlling the cleaning device to lift and lower.

[0030] Among them, the upper surface of the pulling frame 201 is fixedly connected with a brake lock platform 202, and the upper surface of the brake lock platform 202 is provided with an arc-shaped lock platform arc groove 203, and a brake clamping tooth 204 is fixedly connected on the arc surface of the lock platform arc groove 203, and the tooth end of the brake clamping tooth 204 faces the front and upper part, and the outer end of the shaft of the brake pulley 206 is fixedly connected with a brake wheel disc 208, and the wheel body of the brake wheel disc 208 is provided with four wheel disc guide openings 209, and the wheel disc guide openings 209 are rectangular parallelepiped groove bodies. The wheel guide opening 209 is perpendicular to the axis of the wheel guide opening 209, and the outer end of the wheel guide opening 209 is connected to the outer wheel surface of the brake wheel 208; a brake clamping column 210 is slidably connected inside the wheel guide opening 209, and the inner end of the brake clamping column 210 is fixedly connected to a clamping column reset tension spring 212, and the inner end of the clamping column reset tension spring 212 is fixedly connected to the inner end of the wheel guide opening 209, and the outer end of the brake clamping column 210 is processed with a hook-shaped structure. Hook-shaped end head 211; during normal lifting and lowering of the cleaning equipment During the movement, the friction between the safety rope 1 and the brake pulley 206 drives the brake pulley 206 to rotate slowly, causing the brake wheel disc 208 to rotate accordingly. In this state, the brake clamping column 210 is retracted inside the wheel disc guide port 209 under the tension of the clamping column reset tension spring 212. When the cleaning equipment loses control and causes the equipment to drop rapidly under the action of its own gravity, the cleaning equipment brake pulley 206 and the driving pulley 207 rotate rapidly, and the brake wheel disc 208 rotates rapidly, increasing the centrifugal force of the brake clamping column 210. When the centrifugal force is greater than the tension of the clamping column reset tension spring 212, the brake clamping column 210 moves outward, causing the hook-shaped end 211 to insert into the locking platform arc groove 203 and form a hook with the brake clamping tooth 204, thereby stopping the brake pulley 206 from rotating. In this state, under the friction between the safety rope 1 and the brake pulley 206, the cleaning equipment stops falling, thereby playing the role of emergency self-locking protection.

[0031] Among them, two support plate pushing sleeves 304 are fixedly connected on the front surface of the cleaning support plate 3, and a movable push rod 305 is slidably connected to the support plate pushing sleeve 304. A positioning wire ring 306 is provided at the front end of the movable push rod 305, and the positioning wire ring 306 is sleeved with the safety rope 1. The rear end of the movable push rod 305 is fixedly connected to the pushing inner spring 307, and the rear end of the pushing inner spring 307 is fixedly connected to the support plate pushing sleeve 304; when the equipment is in use, the safety rope 1 needs to be kept taut. In this state, the positioning wire ring 306 is slidably connected to the rope body, and a thrust is applied to the movable push rod 305, and under the action of the pushing inner spring 307 and the support plate pushing sleeve 304, a thrust is continuously applied to the cleaning support plate 3, and the outer wall scraper 801 and the balancing support wheel 303 on the cleaning support plate 3 are tightly fitted with the outer wall surface of the building, maintaining rolling contact between the cleaning roller brush 5 and the outer wall surface of the building.

[0032] Among them, an outer wall oblique scraper 804 is arranged above the outer wall scraper strip 801, and the outer wall oblique scraper 804 faces upward and backward. An outer reflow groove 805 is arranged below the rear surface of the outer wall scraper strip 801; an inner reflow groove 807 is arranged below the front surface of the roller brush scraper strip 802, and the outer reflow groove 805 is connected to the inner reflow groove 807 through a pipeline. A roller brush oblique scraper 806 is arranged above the roller brush scraper strip 802, and the roller brush oblique scraper 806 is arranged to be tilted backward, and the upper edge of the roller brush oblique scraper 806 is closely attached to the cleaning roller brush 5; through the action of the outer wall oblique scraper 804, the equipment can be cleaned after brushing the wall. As the cleaning equipment moves downward, the outer wall surface is scraped by the outer wall oblique scraper 804 to remove the remaining water stains on the outer wall surface. The water stains enter the outer reflux groove 805 through the outer wall oblique scraper 804 with an inclined structure, and flow into the inner reflux groove 807 through the pipe. At the same time, as the cleaning roller brush 5 rotates counterclockwise when viewed from the left, the roller brush oblique scraper 806 scrapes the outer brush surface of the cleaning roller brush 5 to separate impurities and sewage on the cleaning roller brush 5, and collect them through the inner reflux groove 807, and finally flow into the waste liquid tank 803 to collect waste water, thereby realizing the wastewater separation and collection functions.

[0033] Embodiment 2: The present invention provides a building exterior wall cleaning device, and the brake pulley 206 and the driving pulley 207 are provided with anti-slip bumps on the wheel surface, which can increase the friction between the wheel body and the safety rope 1 and reduce the probability of the safety rope 1 and the wheel body slipping; the exterior wall cleaning device in the present invention is suitable for cleaning glass curtain walls, tile exterior walls, and smooth exterior walls.

[0034] Specific usage and function: In the present invention, the two ends of the safety rope 1 are fixedly connected to the external wall to be cleaned, and the safety rope 1 is kept taut, and then the lifting drive member 4, the roller brush drive member 6 and the electric control liquid valve 702 are controlled to open by an external wireless remote control device, and the lifting drive member 4 is controlled by the wireless remote control device to move, and the rotation of the rotating shaft of the lifting drive member 4 drives the two driving pulleys 207 to rotate, and the friction between the driving pulley 207 and the safety rope 1 causes the bracket connecting plate 2 and the cleaning support plate 3 to perform a linear lifting movement along the safety rope 1, thereby effectively controlling the cleaning equipment to move. During the lifting movement, the lower positioning wire ring 306 is slidably connected with the rope body, exerting a thrust on the movable push rod 305, and continuously exerting a thrust on the cleaning support plate 3 under the action of the push-up inner spring 307 and the support plate push sleeve 304. The outer wall scraping strip 801 and the balancing support wheel 303 on the cleaning support plate 3 are tightly fitted with the outer wall surface of the building, and the cleaning roller brush 5 is driven to rotate through the roller brush driving part 6 to brush the outer wall surface of the building. Cleaning agent is added to the roller brush driving part 6 through the liquid outlet 704. As the cleaning support plate 3 slowly moves downward, the outer wall oblique scraper 804 scrapes the outer wall surface to reduce the outer wall surface. The remaining water stains enter the outer reflux groove 805 through the outer wall oblique scraper 804 of the inclined structure, and flow into the inner reflux groove 807 through the pipe. At the same time, as the cleaning roller brush 5 rotates counterclockwise when viewed from the left, the roller brush oblique scraper 806 scrapes the outer brush surface of the cleaning roller brush 5, separates the impurities and sewage on the cleaning roller brush 5, and collects them through the inner reflux groove 807, and finally flows into the waste liquid tank 803 to collect the waste water, thereby realizing the waste water separation and collection function; when the lifting drive component 4 fails or loses control, the equipment quickly moves under the action of its own gravity. When descending, the brake pulley 206 and the driving pulley 207 of the cleaning equipment rotate rapidly, and the brake wheel 208 rotates rapidly, which increases the centrifugal force of the brake column 210. When the centrifugal force is greater than the tension of the column reset spring 212, the brake column 210 moves outward, so that the hook-shaped end 211 is inserted into the lock arc groove 203 and forms a hook with the brake tooth 204, thereby stopping the rotation of the brake pulley 206. In this state, under the friction force of the safety rope 1 and the brake pulley 206, the cleaning equipment stops falling and is fixed at this height to avoid accidents caused by the equipment falling.

Claims

1. A building exterior wall cleaning device, the cleaning device comprising: A safety rope (1), a bracket connecting plate (2), characterized in that a pulling frame (201) is welded to each of the two ends of the bracket connecting plate (2); the safety rope (1) is movably connected to the pulling frame (201); a cleaning support plate (3), the cleaning support plate (3) is fixedly connected to the bottom of the two pulling frames (201), a rectangular roller brush groove (301) is provided on the cleaning support plate (3), two support wheel side grooves (302) are provided on the cleaning support plate (3), and a balancing support wheel (303) is rotatably connected in the support wheel side groove (302) via a bearing; a lifting drive member (4), the The lifting drive member (4) is fixedly connected to the upper surface of the bracket connecting plate (2); the cleaning roller brush (5) is rotatably connected to the front of the cleaning support plate (3), and the cleaning roller brush (5) is located inside the roller brush groove (301); the roller brush drive member (6) is connected to the front surface of the cleaning support plate (3) by bolts, and the roller brush drive member (6) is connected to and drives the cleaning roller brush (5) by belt transmission; the cleaning support plate (3) is provided with a cleaning liquid supply assembly (7), and the cleaning liquid supply assembly (7) includes a liquid storage tank (701), an electric control liquid valve (702) and The liquid outlet pipe (703) is connected to the front surface of the cleaning support plate (3) by screws, the liquid outlet pipe (703) is fixedly connected to the bottom of the liquid outlet pipe (701) by a bracket, and the liquid outlet pipe (703) is located above the cleaning roller brush (5). A liquid outlet hole (704) is opened through the wall of the liquid outlet pipe (703). The liquid outlet pipe (701) and the liquid outlet pipe (703) are connected by a pipeline, and an electric liquid control valve (702) is installed on the pipeline. A waste liquid recovery component (8) is provided on the cleaning support plate (3), and the waste liquid recovery component (8) includes An external wall scraper (801), a roller brush scraper (802) and a waste liquid tank (803), wherein the external wall scraper (801) is mounted on the rear surface of a cleaning support plate (3) by means of screws; the roller brush scraper (802) is mounted on the front surface of the cleaning support plate (3) by means of screws; the external wall scraper (801) is connected to the roller brush scraper (802) by means of a pipe; the waste liquid tank (803) is fixedly connected to the front surface of the cleaning support plate (3), the waste liquid tank (803) is located below the roller brush scraper (802), and the roller brush scraper (802) is connected to the waste liquid tank (803) by means of a pipe.

2. A building exterior wall cleaning device as claimed in claim 1, characterized in that: A brake lock platform (202) is fixedly connected to the upper surface of the pulling frame (201), a lock platform arc groove (203) with an arc structure is provided on the upper surface of the brake lock platform (202), a brake clamping tooth (204) is fixedly connected to the arc surface of the lock platform arc groove (203), and the tooth end of the brake clamping tooth (204) faces forward and upward.

3. A building exterior wall cleaning device as claimed in claim 2, characterized in that: The upper surface of the pulling frame (201) is connected to a pulling wheel frame (205) by welding, and the pulling wheel frame (205) is rotatably connected to a brake pulley (206) and a driving pulley (207) inside. The safety rope (1) is tightly connected to the brake pulley (206) and the driving pulley (207), and the brake pulley (206) and the driving pulley (207) clamp the safety rope (1). The inner end of the shaft of the driving pulley (207) is fixedly connected to the rotating shaft of the lifting drive member (4).

4. A building exterior wall cleaning device as claimed in claim 3, characterized in that: The outer end of the shaft of the brake pulley (206) is fixedly connected to a brake wheel disc (208), and the wheel body of the brake wheel disc (208) is provided with four wheel disc guide openings (209), the wheel disc guide openings (209) are rectangular parallelepiped grooves, the wheel disc guide openings (209) are perpendicular to the axis of the wheel disc guide openings (209), and the outer ends of the wheel disc guide openings (209) are connected to the outer wheel surface of the brake wheel disc (208).

5. A building exterior wall cleaning device as claimed in claim 4, characterized in that: A brake column (210) is slidably connected inside the wheel guide opening (209), an inner end of the brake column (210) is fixedly connected to a column reset tension spring (212), an inner end of the column reset tension spring (212) is fixedly connected to the inner end of the wheel guide opening (209), and an outer end of the brake column (210) is processed with a hook-shaped end head (211) of a hook-shaped structure.

6. A building exterior wall cleaning device as claimed in claim 1, characterized in that: Two support plate push sleeves (304) are fixedly connected to the front surface of the cleaning support plate (3), a movable push rod (305) is slidably connected to the support plate push sleeve (304), a positioning wire ring (306) is provided at the front end of the movable push rod (305), the positioning wire ring (306) is sleeved with a safety rope (1), the rear end of the movable push rod (305) is fixedly connected to a push-up inner spring (307), and the rear end of the push-up inner spring (307) is fixedly connected to the support plate push sleeve (304).

7. A building exterior wall cleaning device as claimed in claim 1, characterized in that: An external wall oblique scraper (804) is provided above the external wall scraper strip (801), the external wall oblique scraper (804) faces upward and rearward, and an external reflow groove (805) is provided below the rear surface of the external wall scraper strip (801).

8. A building exterior wall cleaning device as claimed in claim 7, characterized in that: An inner reflow groove (807) is provided below the front surface of the roller brush scraper strip (802); the outer reflow groove (805) is connected to the inner reflow groove (807) via a pipe; an oblique roller brush scraper plate (806) is provided above the roller brush scraper strip (802); the oblique roller brush scraper plate (806) is arranged to be tilted backwards; and the upper edge of the oblique roller brush scraper plate (806) is tightly fitted to the cleaning roller brush (5).

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