An external wall painting device for building construction

Abstract

The present invention discloses an external wall painting device for building construction, belonging to the technical field of building decoration engineering; it includes a main body of the painting device and a movable seat that can move horizontally thereon, and also includes a control mechanism for controlling the painting range of the nozzle; the nozzle is fixed on the movable seat, and the control mechanism includes a fixed seat. On both sides of the front end of the fixed seat, a first baffle and a second baffle are symmetrically and rotatably connected. The output end of the nozzle is located between the first baffle and the second baffle; the lower ends of the first baffle and the second baffle are connected to the movable seat through structures such as an electric telescopic rod and a connecting rod for transmission; when the connecting rod moves, the angle of the first baffle or the second baffle is changed through the connecting member; by adjusting the angle of the first baffle or the second baffle, the present invention changes the spraying range of the paint on the outer wall surface, which is beneficial to reducing the paint splashing caused by spraying at the outer wall edge.

Description

Technical Field

[0001] The present invention belongs to the technical field of building decoration engineering, relates to exterior wall painting technology, and specifically relates to an exterior wall painting device for building construction. Background Art

[0002] An exterior wall painting device for building construction refers to equipment used in building construction to efficiently and evenly paint the exterior walls of buildings, such as common spraying machines, roller brushes, automatic painting robots, etc.

[0003] Among them, automatic painting robots are usually used for painting the exterior walls of high-rise buildings, replacing workers for high-altitude operations and reducing accidents when workers engage in high-altitude work. Existing automatic painting robots mainly consist of a suspension assembly, a spraying assembly, and a control system erected on the roof of a building. Workers can use the suspension assembly to hang the automatic painting robot about 20 centimeters away from the exterior wall. The automatic painting robot moves up and down along the steel rope on the surface of the exterior wall through its internal motion system, and then atomizes and sprays the paint evenly on the exterior wall through the spraying assembly. Workers adjust the suspension assembly on the roof to make the automatic painting robot move horizontally and spray all positions of the exterior wall in all directions.

[0004] However, since automatic painting robots usually spray paint in a fan-shaped direction, when spraying at the edge position of the wall surface, some atomized paint will splash. And due to the relatively high wind speed at high altitudes, the splashed paint will drift, which will cause pollution to surrounding buildings or pose a safety hazard to pedestrians on the ground. Summary of the Invention

[0005] The present invention overcomes the deficiencies of the prior art and provides an exterior wall painting device for building construction. The present invention is realized through the following technical solutions:

[0006] An exterior wall painting device for building construction includes a main body of the painting equipment and a movable seat that can move horizontally and is movably installed on the main body of the painting equipment; a nozzle for spraying paint on the surface of the exterior wall is fixedly connected to the movable seat; it also includes a control mechanism for controlling the painting range of the nozzle; the control mechanism includes a fixed seat, and a first baffle and a second baffle are symmetrically and rotatably connected to both sides of the front end of the fixed seat. The output end of the nozzle is located between the first baffle and the second baffle; both the lower ends of the first baffle and the second baffle are fixedly connected with rotating gears, the rotating gears are rotatably connected to the fixed seat, and a driving gear plate is meshed with the surface of the rotating gears, and the driving gear plate slides linearly in the fixed seat;

[0007] An electric telescopic rod is connected inside the moving seat. The output end of the electric telescopic rod is fixedly connected with a push rod. A round rod is slidably connected inside the push rod. The front end of the round rod is rotatably connected with a first round block. A plurality of docking rods are fixedly connected circumferentially and evenly on the surface of the first round block. The output end of the electric telescopic rod pushes the push rod, and two adjacent docking rods are simultaneously in contact with and fit against the outer wall surface. A second round block is fixedly connected to the bottom of the first round block. A semi-circular arc groove is formed on the surface of the second round block, and two short sliding rods are symmetrically slidably connected inside the semi-circular arc groove. The bottoms of the two short sliding rods are respectively slidably connected inside a connecting rod. The two connecting rods are located below the second round block. The top ends of the short sliding rods penetrate outside the connecting rod and can enter the semi-circular arc groove. A second pulley is rotatably connected between the two connecting rods. The second pulley is in contact with and slidably connected to the main body of the painting equipment. A short board is connected to one side surface of the second pulley. Extrusion plates are slidably connected to the closer sides of the two connecting rods. Two guiding grooves are symmetrically formed on the surface of the extrusion plate. One end of the extrusion plate penetrates outside the connecting rod. The two guiding grooves are intermittently in sliding contact with the short sliding rod and the short board respectively. A connecting member is connected between the connecting rod and the driving gear plate. When the connecting rod moves, the driving gear plate is driven to move through the connecting member.

[0008] Further, a first spring is fixedly connected between the round rod and the push rod. The first round block is rotatably connected to the end of the round rod away from the push rod. An electrode contact point is provided at the front end of the push rod and the rear end of the round rod. The electrode contact point is electrically connected to the spraying assembly of the main body of the painting equipment. When the two electrode contact points are docked, an electrical signal is input to the spraying assembly to prevent the spraying assembly from continuing to spray paint on the outer wall.

[0009] Further, three docking rods are fixedly connected evenly on the surface of the first round block, and the included angles between adjacent docking rods are all 120 degrees. The ends of the three docking rods are all rotatably connected with rotating columns, and the three rotating columns are used to be in contact with and slide on the outer wall surface.

[0010] Further, the connecting member includes a first hydraulic rod fixedly connected to one side of the driving gear plate. One end of the first hydraulic rod is fixedly connected with a first piston, and a first hydraulic sleeve is sleeved on the surface of the first hydraulic rod. The first piston is slidably connected to the inner wall of the first hydraulic sleeve. One end of each of the two connecting rods is fixedly connected with a second hydraulic rod. One end of the second hydraulic rod is fixedly connected with a second piston, and a second hydraulic sleeve is sleeved on the surface of the second hydraulic rod. The second piston is slidably connected to the inner wall of the second hydraulic sleeve. A hydraulic pipe is provided between the first hydraulic sleeve and the second hydraulic sleeve on the same side. An oil fluid is provided between the first piston and the second piston in the hydraulic pipe.

[0011] Further, a through groove is provided in the moving seat, and a T-shaped rod is horizontally slidably connected in the through groove; a pulley one is rotatably connected in the T-shaped rod, a first gear is fixedly connected to one side of the pulley one, a second gear is meshed with the surface of the first gear, a long rod is connected to the center of the second gear, and a third gear is fixedly connected to the end of the long rod away from the second gear. The third gear is rotatably connected to the T-shaped rod; a first toothed plate and a second toothed plate are slidably connected in the T-shaped rod, and both the first toothed plate and the second toothed plate are meshed with the third gear; one end of each of the first toothed plate and the second toothed plate is fixedly connected to a moving rod, and one end of the moving rod penetrates to the outside of the T-shaped rod.

[0012] A chute is provided on the surface of the main body of the painting equipment, a rectangular rod is slidably connected in the chute, a cam is rotatably connected to one side of the rectangular rod, the cam is in sliding contact with the two moving rods, an extrusion groove is provided on the surface of the cam, and a guide rod is fixedly connected in the moving seat. The guide rod is slidably connected with the extrusion groove.

[0013] Furthermore, a plurality of second springs are fixedly connected in the long rod, a trapezoidal block is fixedly connected to one end of the second spring, and a plurality of trapezoidal grooves are provided on the surface of the second gear. The trapezoidal grooves are slidably connected with the trapezoidal block.

[0014] Further, the short sliding rod is a metal rod.

[0015] Further, a driving unit and a spraying assembly are provided in the main body of the painting equipment; the driving unit is used to drive the overall movement of the main body of the painting equipment; the spraying assembly is used to spray the atomized paint on the outer wall surface through the nozzle.

[0016] The beneficial effects of the present invention relative to the prior art are as follows:

[0017] 1. By setting the pulley one and the pulley two to move in the same direction as the moving seat, the present invention can slide on the surface of the main body of the painting equipment. By judging the change in the rotation direction of the pulley one and the pulley two, the movement direction of the nozzle can be determined. When the nozzle is working, the two docking rods and the sliding column are always in front of the movement direction of the nozzle, which is beneficial for the docking rods and the sliding rods to slide on the outer wall surface and detect the structure of the outer wall surface in advance. And by changing the contact between different short sliding rods and the semi-circular arc grooves, the angles of the first baffle or the second baffle in the fixed seat can be adjusted separately, thereby changing the range of the paint sprayed on the outer wall surface by the nozzle, which is beneficial for reducing the paint splashing caused by spraying at the edge of the outer wall and reducing the potential safety hazards to surrounding buildings and pedestrians.

[0018] 2. By providing a trapezoidal groove and a trapezoidal block, the first pulley drives the third gear to mesh and drives the first and second toothed plates to move linearly while sliding along the surface of the painting equipment main body. When the first and second toothed plates stop moving linearly, the first pulley continues to drive the second gear to rotate, and a relative movement occurs between the long rod and the second gear, so that the long rod and the third gear do not rotate, reducing the loss caused by the friction of the first pulley on the surface of the painting equipment main body, which is beneficial to protecting the normal operation of the painting equipment main body on the high-rise building exterior wall surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall external structure of the present invention;

[0020] Figure 2 is Figure 1 a schematic enlarged view of structure A in

[0021] Figure 3 is Figure 1 a schematic enlarged view of structure B in

[0022] Figure 4 is a schematic side-sectional view of the moving seat of the present invention;

[0023] Figure 5 is a schematic diagram of the cam structure of the present invention;

[0024] Figure 6 is a schematic cross-sectional view of the connecting rod of the present invention;

[0025] Figure 7 is a schematic diagram of the semi-circular arc groove structure of the present invention;

[0026] Figure 8 is a schematic side-sectional view of the T-shaped rod of the present invention;

[0027] Figure 9 is Figure 8 a schematic enlarged view of structure C in

[0028] Figure 10 is Figure 8 a schematic enlarged view of structure D in

[0029] Figure 11 is a schematic two-dimensional structure diagram of the connector of the present invention;

[0030] Figure 12 is Figure 11 a schematic enlarged view of structure E in

[0031] Figure 13 is a schematic two-dimensional structure diagram of the long rod in Embodiment 2 of the present invention.

[0032] In the figure:

[0033] 1. Painting equipment main body; 101. Moving seat; 102. Nozzle;

[0034] 201, Fixed seat; 202, First baffle; 203, Second baffle; 204, Rotating gear; 205, Driving gear plate; 206, Electric telescopic rod; 207, Push rod; 208, Round rod; 209, First round block; 210, Docking rod; 211, Second round block; 212, Semi-circular arc groove; 213, Short sliding rod; 214, Connecting rod; 215, Through groove; 216, T-shaped rod; 217, First pulley; 218, First gear; 219, Second gear; 220, Third gear; 221, First toothed plate; 222, Second toothed plate; 223, Moving rod; 224, Sliding groove; 225, Rectangular rod; 226, Cam; 227, Extrusion groove; 228, Guide rod; 229, Rotating column; 230, First spring; 231, Electrode contact point; 232, Second pulley; 233, Short board; 234, Extrusion plate; 235, Guide groove;

[0035] 3, Connecting piece; 301, First hydraulic rod; 302, First piston; 303, First hydraulic sleeve; 304, Second hydraulic rod; 305, Second piston; 306, Second hydraulic sleeve; 307, Hydraulic pipe;

[0036] 4, Long rod; 5, Second spring; 6, Trapezoidal block; 7, Trapezoidal groove. Detailed implementation manners

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail in combination with embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. The technical solutions of the present invention will be described in detail below in combination with embodiments and drawings, but the protection scope is not limited by this.

[0038] Embodiment 1

[0039] Refer to Figures 1 to 12 , this embodiment proposes an external wall painting device for building construction, including a painting equipment main body 1 and a moving seat 101 movably installed on the painting equipment main body 1; the moving seat 101 is connected with a driving motor and can horizontally reciprocate on the painting equipment main body 1; a driving unit and a spraying assembly are arranged in the painting equipment main body 1; both the driving unit and the spraying assembly are conventional structures of existing painting devices; the driving unit is used to drive the whole painting equipment main body 1 to move along the steel wire; the spraying assembly is used to spray the atomized paint on the external wall surface through a nozzle 102. The nozzle 102 is fixedly installed on the moving seat 101, and one end of the nozzle 102 is fixedly connected with a control mechanism for controlling the painting range.

[0040] Among them, the control mechanism includes a fixed seat 201 which is a hollow box body with an open front end. The nozzle 102 is located inside the fixed seat 201. The first baffle 202 and the second baffle 203 are symmetrically and rotatably connected to both sides of the front end of the fixed seat 201. The output end of the nozzle 102 is located between the first baffle 202 and the second baffle 203. And the lower ends of both the first baffle 202 and the second baffle 203 are fixedly connected with rotating gears 204. The rotating gears 204 are rotatably connected to the fixed seat 201. And a driving gear plate 205 is meshed with the surface of the rotating gear 204. The driving gear plate 205 linearly slides inside the fixed seat 201. The driving gear plate 205 is connected with a connecting member 3 for transmission. When the driving gear plate 205 is driven by the connecting member 3, it moves linearly and meshes with and drives the rotating gear 204 to rotate a certain angle, thereby adjusting the angles of the first baffle 202 and the second baffle 203.

[0041] An electric telescopic rod 206 is installed inside the moving seat 101. The output end of the electric telescopic rod 206 is fixedly connected with a push rod 207. A round rod 208 is slidably connected inside the push rod 207. A first spring 230 is fixedly connected between the round rod 208 and the push rod 207. An electrode contact point 231 is provided at the front end of the push rod 207 and the rear end of the round rod 208. The electrode contact point 231 is electrically connected to the spraying assembly of the painting equipment main body 1. When the two electrode contact points 231 are butted, an electrical signal is input to the spraying assembly to prevent the spraying assembly from continuing to spray paint on the outer wall. One end of the round rod 208 away from the push rod 207 is rotatably connected with a first round block 209. Three docking rods 210 are evenly and fixedly connected to the surface of the first round block 209. And the included angles between adjacent docking rods 210 are all 120 degrees. The ends of the three docking rods 210 are all rotatably connected with rotating columns 229. The three rotating columns 229 are used to fit and slide on the outer wall surface. In the normal spraying state, the painting equipment main body 1 and the electric telescopic rod 206 work synchronously. The output end of the electric telescopic rod 206 pushes the push rod 207. The rotating columns 229 on the two docking rods 210 are simultaneously in contact with the outer wall surface. One end of the round rod 208 drives the first round block 209 and the docking rods 210 on its surface to closely fit the outer wall. When the moving seat 101 drives the electric telescopic rod 206 to move horizontally on the painting equipment main body 1, the friction force between the outer wall surface and the rotating column 229 drives the rotating column 229 to rotate inside the docking rod 210. Under the reaction force of the outer wall, the round rod 208 will compress the first spring 230 and linearly slide inside the push rod 207. At this time, the two electrode contact points 231 on the push rod 207 and the round rod 208 are in a separated state. The spraying assembly sprays paint on the outer wall.

[0042] A circular block two 211 is fixedly connected to the bottom of the circular block one 209. A semi-circular arc groove 212 is formed on the surface of the circular block two 211. Two short sliding rods 213 are symmetrically and slidably connected in the semi-circular arc groove 212. The short sliding rods 213 are metal rods. The bottoms of the two short sliding rods 213 are respectively slidably connected in a connecting rod 214. The two connecting rods 214 are located below the circular block two 211. The tops of the short sliding rods 213 penetrate to the outside of the connecting rod 214 and can enter the semi-circular arc groove 212. The short sliding rods 213 make linear up-and-down slides in the connecting rod 214. A pulley two 232 is rotatably connected between the two connecting rods 214. A protruding short board 233 is connected to one side surface of the pulley two 232. Pressing plates 234 are slidably connected to the closer sides of the two connecting rods 214. Two guiding grooves 235 are symmetrically formed on the surface of the pressing plate 234. One end of the pressing plate 234 penetrates to the outside of the connecting rod 214. The two guiding grooves 235 are intermittently in sliding contact with the short sliding rods 213 and the short board 233 respectively.

[0043] In the normal working state, the forces received by the two docking rods 210 in contact with the outer wall surface are balanced and offset, and neither the circular block one 209 nor the circular block two 211 will rotate. The metal short sliding rods 213 have a certain weight and can rest inside the connecting rod 214, and neither of the two short sliding rods 213 contacts the semi-circular arc groove 212. When the moving seat 101 drives the nozzle 102 and the electric telescopic rod 206 to start moving to one side, at this time, the rotating column 229 rolls on the wall surface. Since the pulley two 232 is in contact with and slidably connected to the painting equipment main body 1, the pulley two 232 rolls on the surface of the painting equipment main body 1. At this time, the short board 233 sleeved on the surface of the pulley two 232 rotates synchronously with the pulley two 232. When the short board 233 contacts and presses one guiding groove 235 on one side of a pressing plate 234, the short board 233 pushes the pressing plate 234 to make a linear slide in the connecting rod 214. The pressing plate 234 then pushes the short sliding rod 213 to move upward in the connecting rod 214, so that the short sliding rod 213 moves upward and contacts the semi-circular arc groove 212. Since the circular block two 211 does not rotate, when the short board 233 no longer pushes the pressing plate 234, the short sliding rod 213 will fall back into the connecting rod 214 due to gravity. And if the circular block two 211 and the semi-circular arc groove 212 rotate, when the short sliding rod 213 moves upward and enters the semi-circular arc groove 212, the semi-circular arc groove 212 will drive the short sliding rod 213 to move, and the short sliding rod 213 will drive the connecting rod 214 to make a linear move. The connecting rod 214 is connected to the driving gear plate 205 through the said connecting member 3. When the connecting rod 214 moves, it drives the driving gear plate 205 to move through the connecting member 3.

[0044] During the sliding process of the docking rod 210 and the rotating column 229 on the outer wall surface, when encountering the edge of the outer wall or the position of a sunken window, since the round rod 208 is pushed by the first spring 230, the two docking rods 210 are closely attached to the wall surface. When one of the docking rods 210 is not in contact with the wall surface and is suspended, the round block one 209 will rotate clockwise by a certain angle at one end of the round rod 208, causing the round block one 209 to drive the round block two 211 to squeeze a short sliding rod 213 with its semi-circular arc groove 212, so that the short sliding rod 213 on this side drives the corresponding connecting rod 214 to push the connecting piece 3, driving the gear plate 205 to drive the rotating gear 204 to rotate by a certain angle, thereby adjusting the angle of the first baffle 202 or the second baffle 203; reducing the opening degree of the first baffle 202 or the second baffle 203, and further reducing the spraying range of the spray head 102.

[0045] Specifically, the connecting piece 3 includes a hydraulic rod one 301 fixedly connected to one side of the driving gear plate 205. One end of the hydraulic rod one 301 is fixedly connected with a piston one 302, and a hydraulic sleeve one 303 is sleeved on the surface of the hydraulic rod one 301. The piston one 302 is slidably connected with the inner wall of the hydraulic sleeve one 303. One end of each of the two connecting rods 214 is fixedly connected with a hydraulic rod two 304. One end of the hydraulic rod two 304 is fixedly connected with a piston two 305, and a hydraulic sleeve two 306 is sleeved on the surface of the hydraulic rod two 304. The piston two 305 is slidably connected with the inner wall of the hydraulic sleeve two 306. A hydraulic pipe 307 is provided between the hydraulic sleeve one 303 and the hydraulic sleeve two 306 on the same side, and a hydraulic fluid is provided between the piston one 302 and the piston two 305 in the hydraulic pipe 307. When the docking rod 210 and the rotating column 229 slide on the outer wall surface, when one of the docking rods 210 and the rotating column 229 is suspended on one side, it will drive the round block two 211 to rotate with the semi-circular arc groove 212, causing the semi-circular arc groove 212 to squeeze one end of the short sliding rod 213 and push the connecting rod 214 and the corresponding hydraulic rod two 304, so that the piston two 305 moves in the hydraulic sleeve two 306, causing the hydraulic fluid between the piston one 302, the piston two 305 and the hydraulic pipe 307 to push the piston one 302 to move in the hydraulic sleeve one 303, so that the hydraulic rod one 301 drives the driving gear plate 205 to engage and drive the rotating gear 204 to rotate by a certain angle, thereby adjusting the inclination angle of the first baffle 202 or the second baffle 203 in the fixed seat 201; until the rotating column 229 of the other docking rod 210 is also suspended, indicating that the position where the spray head 102 sprays is not the outer wall surface at this time. At this time, the round rod 208 is ejected from the push rod 207 under the action of the first spring 230, and the electrode contact point 231 at the rear end of the round rod 208 is docked with the front end of the push rod 207, thereby controlling the spraying assembly to stop spraying the coating.

[0046] In order to detect the structure of the wall surface in advance, in this embodiment, the position of the docking rod 210 on one side is located in front of the spray head 102; specifically, a through groove 215 is formed in the moving seat 101, a T-shaped rod 216 is horizontally slidably connected in the through groove 215, the through groove 215 is rectangular, and the T-shaped rod 216 is always located in the through groove 215; a first pulley 217 is rotatably connected in the T-shaped rod 216, a first gear 218 is fixedly connected to one side of the first pulley 217, a second gear 219 is meshed on the surface of the first gear 218, a long rod 4 is fixedly connected to the center of the second gear 219, and a third gear 220 is fixedly connected to the end of the long rod 4 away from the second gear 219. The third gear 220 is rotatably connected to the T-shaped rod 216; a first toothed plate 221 and a second toothed plate 222 are slidably connected in the T-shaped rod 216, and both the first toothed plate 221 and the second toothed plate 222 are meshed with the third gear 220; one ends of the first toothed plate 221 and the second toothed plate 222 are fixedly connected with a moving rod 223, and one end of the moving rod 223 penetrates outside the T-shaped rod 216. A sliding groove 224 is formed on the surface of the main body 1 of the painting device, a rectangular rod 225 is slidably connected in the sliding groove 224, a cam 226 is rotatably connected to one side of the rectangular rod 225, the cam 226 is in sliding contact with the two moving rods 223, an extrusion groove 227 is formed on the surface of the cam 226, and a guide rod 228 is fixedly connected in the moving seat 101. The guide rod 228 is slidably connected with the extrusion groove 227.

[0047] When the moving seat 101 drives the T-shaped rod 216 to move synchronously, the first pulley 217 on one side of the T-shaped rod 216 slides on the surface of the main body 1 of the painting device and rotates in the T-shaped rod 216 at the same time, and synchronously drives the first gear 218 to rotate, and makes the second gear 219 and the third gear 220 rotate, so that the rotation direction of the third gear 220 is opposite to the rotation directions of the first gear 218 and the first pulley 217. At this time, the rotation of the third gear 220 will drive the first toothed plate 221 and the second toothed plate 222 to linearly slide in the fixed seat 201 by meshing, and the linear movement directions of the two are opposite. At this time, the first toothed plate 221 drives the moving rod 223 to extend outside the T-shaped rod 216, and the second toothed plate 222 and the moving rod 223 at its end are located in the T-shaped rod 216.

[0048] When the moving seat 101 moves horizontally on the main body 1 of the painting device following the spray head 102, the guide rod 228 in the moving seat 101 moves at the same time. At this time, the guide rod 228 will squeeze the extrusion groove 227 to drive the cam 226 to rotate 90 degrees on one side of the rectangular rod 225, so that the cam 226 squeezes and pushes one moving rod 223, so that the moving rod 223 and the T-shaped rod 216 move horizontally in the through groove 215, so that the docking rod 210 is located in front of the moving direction of the spray head 102, thereby detecting the structure of the outer wall where the spray head 102 sprays the paint in advance, and reducing the paint splashing generated by the spray head 102 at the outer wall edge or the position of the reserved window on the outer wall.

[0049] Embodiment 2

[0050] In this embodiment, an external wall painting device for building construction is proposed. Except for the structures at the long rod 4 and the second gear 219 which are different from those in Embodiment 1, the rest of the structures are the same. The specific structural differences from Embodiment 1 are as follows:

[0051] See Figure 13 , the second gear 219 is not fixedly connected to the long rod 4. A plurality of second springs 5 are fixedly connected inside the long rod 4. One end of the second spring 5 is fixedly connected to a trapezoidal block 6. And a plurality of trapezoidal grooves 7 are formed on the surface of the second gear 219. The trapezoidal grooves 7 are slidably connected to the trapezoidal block 6. When the moving seat 101 continuously drives the nozzle 102 to move horizontally, the first pulley 217 initially slides along the surface of the painting equipment main body 1 and drives the second gear 219 and the third gear 220 to rotate through the engagement of the first gear 218, so that the first toothed plate 221 and the second toothed plate 222 linearly slide in engagement on the surface of the third gear 220. When the first toothed plate 221 and the second toothed plate 222 move to the end of the T-shaped rod 216, the first toothed plate 221 and the second toothed plate 222 stop linearly moving in the T-shaped rod 216. At this time, the first pulley 217 continues to slide on the surface of the painting equipment main body 1, and the second gear 219 driven by the engagement of the first gear 218 on one side of the first pulley 217 continues to rotate. A relative movement is generated between the second gear 219 and the long rod 4, so that a sliding friction force is generated between the trapezoidal groove 7 on one side of the second gear 219 and the trapezoidal block 6 on one side of the long rod 4. The trapezoidal block 6 rotates circumferentially on the surface of the second gear 219, the long rod 4 is stationary in the T-shaped rod 216, and the second gear 219 continues to rotate in the T-shaped rod 216. This improved structure can prevent the wear of the first pulley 217. Because if the second gear 219 and the long rod 4 are fixedly connected, when the first pulley 217 continuously slides on the outer wall surface, the third gear 220 stops rotating, which will increase the static friction force generated by the first pulley 217 on the outer wall surface, thereby increasing the wear of the first pulley 217, which is not conducive to the all-round spraying of paint on the outer wall of the high-rise building by the painting equipment main body 1.

[0052] The basic working principle of an external wall painting device for building construction disclosed in Embodiments 1 and 2 is as follows:

[0053] The worker first suspends the painting equipment main body 1 on one side of the outer wall of the high-rise building through an existing conventional suspension assembly, starts the drive unit in the painting equipment main body 1 to make it move from the roof to the bottom along the steel rope to complete a spraying and painting operation. During the descending process, at each height position, the painting equipment main body 1 will drive the spraying assembly to spray the atomized paint through the movement of the moving seat 101, driving the nozzle 102 to spray the paint within a certain horizontal range on the outer wall surface, so as to evenly spray the paint in this area.

[0054] Start working. At this time, the output end of the electric telescopic rod 206 pushes the push rod 207 and the round rod 208, causing the rotating column 229 to slide along the outer wall surface. The moving seat 101 drives the nozzle 102 to move horizontally on the main body 1 of the painting equipment. At this time, the second pulley 232 moves in the same direction as the moving seat 101. The second pulley 232 and the short board 233 rotate clockwise, and the short board 233 is mutually extruded with the guide groove 235 on the surface of one side of the pressing plate 234, so that the guide groove 235 on the other side of the pressing plate 234 pushes the short sliding rod 213 to move upward and makes one end of it enter the semi-circular arc groove 212. When the two docking rods 210 move to the edge of the outer wall and one docking rod 210 is suspended, the first round block 209 and the second round block 211 rotate synchronously and drive the semi-circular arc groove 212 to squeeze the short sliding rod 213, so that the short sliding rod 213 drives the connecting rod 214 to move linearly in the main body 1 of the painting equipment, and drives the driving gear plate 205 through the connecting piece 3. The driving gear plate 205 drives the rotating gear 204, so that the first baffle 202 or the second baffle 203 rotates by a certain angle, and the opening angle of the first baffle 202 or the second baffle 203 is adjusted to be smaller. Under the blocking action of the first baffle 202 or the second baffle 203, the spraying range of the nozzle 102 is reduced; when the rotating column 229 of the other docking rod 210 is also suspended, it means that the position sprayed by the nozzle 102 is not the outer wall surface. At this time, the round rod 208 is ejected from the push rod 207 under the action of the first spring 230, and the electrode contact point 231 at the rear end of the round rod 208 is docked with the front end of the push rod 207, so as to control the spraying assembly to stop spraying paint. At the same time, through structures such as the T-shaped rod 216 in this device, one docking rod 210 is located in front of the nozzle 102, and the structure of the wall surface can be detected in advance. Through the improved structure of Embodiment 2, the wear of the first pulley 217 can be reduced.

[0055] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific embodiments of the present invention are limited to this. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the premise of the present invention, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the patent protection scope determined by the claims submitted by the present invention.

Claims

1. An external wall painting device for building construction, comprising a main body of the painting equipment (1) and a movable seat (101) that can move horizontally and is movably installed on the main body of the painting equipment (1); a spray head (102) for spraying paint on the surface of the external wall is fixedly connected to the movable seat (101); it is characterized in that: It further includes a control mechanism for controlling the painting range of the spray head (102); the control mechanism includes a fixed seat (201), and both sides of the front end of the fixed seat (201) are symmetrically and rotatably connected with a first baffle (202) and a second baffle (203), and the output end of the spray head (102) is located between the first baffle (202) and the second baffle (203); both the lower ends of the first baffle (202) and the second baffle (203) are fixedly connected with rotating gears (204), the rotating gears (204) are rotatably connected with the fixed seat (201), and the surface of the rotating gears (204) is engaged with a driving gear plate (205), and the driving gear plate (205) linearly slides in the fixed seat (201). An electric telescopic rod (206) is connected in the moving seat (101), the output end of the electric telescopic rod (206) is fixedly connected with a push rod (207), a round rod (208) is slidably connected in the push rod (207), the front end of the round rod (208) is rotatably connected with a first round block (209), and a plurality of docking rods (210) are fixedly connected to the surface of the first round block (209) in a circumferentially uniform manner. The output end of the electric telescopic rod (206) pushes the push rod (207), and two adjacent docking rods (210) are simultaneously in contact with and attached to the outer wall surface; a second round block (211) is fixedly connected to the bottom of the first round block (209), a semi-circular arc groove (212) is formed on the surface of the second round block (211), and two short sliding rods (213) are symmetrically and slidably connected in the semi-circular arc groove (212). The bottoms of the two short sliding rods (213) are respectively slidably connected in a connecting rod (214). The two connecting rods (214) are located below the second round block (211). The top ends of the short sliding rods (213) penetrate to the outside of the connecting rod (214) and can enter the semi-circular arc groove (212); a second pulley (232) is rotatably connected between the two connecting rods (214), and the second pulley (232) is in contact with and slidably connected to the main body (1) of the painting equipment; a short plate (233) is connected to one side surface of the second pulley (232), and pressing plates (234) are slidably connected to both sides of the two connecting rods (214) close to each other. Two guiding grooves (235) are symmetrically formed on the surface of the pressing plate (234). One end of the pressing plate (234) penetrates to the outside of the connecting rod (214), and the two guiding grooves (235) are intermittently in sliding contact with the short sliding rods (213) and the short plate (233) respectively; a connecting member (3) is connected between the connecting rod (214) and the driving gear plate (205); when the connecting rod (214) moves, the driving gear plate (205) is driven to move through the connecting member (3). A through groove (215) is provided in the moving seat (101), and a T-shaped rod (216) is horizontally slidably connected in the through groove (215); a first pulley (217) is rotatably connected in the T-shaped rod (216), and a first gear (218) is fixedly connected to one side of the first pulley (217). A second gear (219) is engaged with the surface of the first gear (218). A long rod (4) is connected to the center of the second gear (219). One end of the long rod (4) away from the second gear (219) is fixedly connected with a third gear (220), and the third gear (220) is rotatably connected with the T-shaped rod (216); a first toothed plate (221) and a second toothed plate (222) are slidably connected in the T-shaped rod (216), and both the first toothed plate (221) and the second toothed plate (222) are engaged with the third gear (220); one end of each of the first toothed plate (221) and the second toothed plate (222) is fixedly connected with a moving rod (223), and one end of the moving rod (223) penetrates to the outside of the T-shaped rod (216). A chute (224) is provided on the surface of the main body (1) of the painting equipment, and a rectangular rod (225) is slidably connected in the chute (224). A cam (226) is rotatably connected to one side of the rectangular rod (225). The cam (226) is in sliding contact with the two moving rods (223). An extrusion groove (227) is provided on the surface of the cam (226). A guide rod (228) is fixedly connected in the moving seat (101), and the guide rod (228) is slidably connected with the extrusion groove (227). A plurality of second springs (5) are fixedly connected in the long rod (4). One end of the second spring (5) is fixedly connected with a trapezoidal block (6), and a plurality of trapezoidal grooves (7) are provided on the surface of the second gear (219). The trapezoidal grooves (7) are slidably connected with the trapezoidal block (6).

2. The exterior wall painting device for building construction according to claim 1, characterized in that, A round rod (208) is slidably connected in the push rod (207). A first spring (230) is fixedly connected between the round rod (208) and the push rod (207). The first round block (209) is rotatably connected to one end of the round rod (208) away from the push rod (207); electrode contact points (231) are provided at the front end of the push rod (207) and the rear end of the round rod (208). The electrode contact points (231) are electrically connected to the spraying assembly of the main body (1) of the painting equipment. When the two electrode contact points (231) are butted, an electrical signal is input to the spraying assembly to prevent the spraying assembly from continuing to spray paint on the outer wall.

3. A wall painting device for building construction according to claim 1 or 2, characterized in that, Three docking rods (210) are uniformly fixedly connected to the surface of the first round block (209), and the included angles between adjacent docking rods (210) are all 120 degrees. The ends of the three docking rods (210) are rotatably connected with rotating columns (229), and the three rotating columns (229) are used to fit and slide on the surface of the outer wall.

4. A wall painting device for building construction according to claim 1, characterized in that, The connecting member (3) includes a first hydraulic rod (301) fixedly connected to one side of the driving gear plate (205). One end of the first hydraulic rod (301) is fixedly connected with a first piston (302), and a first hydraulic sleeve (303) is sleeved on the surface of the first hydraulic rod (301). The first piston (302) is slidably connected to the inner wall of the first hydraulic sleeve (303). One end of each of the two connecting rods (214) is fixedly connected with a second hydraulic rod (304). One end of the second hydraulic rod (304) is fixedly connected with a second piston (305), and a second hydraulic sleeve (306) is sleeved on the surface of the second hydraulic rod (304). The second piston (305) is slidably connected to the inner wall of the second hydraulic sleeve (306). A hydraulic pipe (307) is provided between the first hydraulic sleeve (303) and the second hydraulic sleeve (306) on the same side. There is oil fluid between the first piston (302) and the second piston (305) in the hydraulic pipe (307).

5. A wall painting device for building construction according to claim 1, characterized in that, The short sliding rod (213) is a metal rod.

6. The external wall painting device for building construction according to claim 1, characterized in that, A driving unit and a spraying assembly are arranged in the main body (1) of the painting equipment. The driving unit is used to drive the whole main body (1) of the painting equipment to move. The spraying assembly is used to spray the atomized paint onto the outer wall surface through the nozzle (102).

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