An automated dirt removal and painting scaffold maintenance device and method

Abstract

The application discloses an automatic dirt-removing and paint-applying scaffold maintenance device and method, and relates to the technical field of building machinery, which comprises a rod maintenance unit and a fastener maintenance unit; the rod maintenance unit comprises a first shell, a second shell, a rod channel, a stepping drive mechanism, a cement block removing mechanism, a polishing mechanism, a paint spraying mechanism and a drying mechanism; the fastener maintenance unit comprises a driving wheel, a driving motor, a positioning frame, a multi-hole plate, a feeding port, a discharging port, a hammering mechanism, a high-pressure water cleaning mechanism, a stirring mechanism, a paint spraying mechanism, a first electric door and a fastener drying mechanism. The application realizes automatic maintenance of rods and fasteners, greatly saves labor, improves maintenance efficiency, guarantees maintenance effect, prolongs the service life of rods and fasteners, reduces labor intensity and improves the intelligent level of construction means.

Description

Technical Field

[0001] This invention relates to the field of construction machinery technology, specifically to an automated cleaning and painting scaffolding maintenance equipment and method. Background Technology

[0002] At construction sites, scaffolding is prone to accumulating fallen concrete, and some scaffolding may develop rust during the rainy season. If maintenance is not carried out in a timely manner, the service life of the scaffolding will be reduced.

[0003] The existing maintenance methods are done manually, such as cleaning the cement attached to the scaffold with simple tools and then rinsing the scaffold with ordinary water pipes; painting the scaffold and fasteners without sufficient sanding and then letting the painted surface dry naturally. This method has a long maintenance cycle, consumes a lot of manpower, is labor-intensive, and has poor maintenance results. Summary of the Invention

[0004] To address the problems of existing technologies, the present invention aims to provide an automated cleaning and painting scaffolding maintenance equipment and method, in order to solve the problems of "long maintenance cycle, high manpower consumption, high labor intensity and poor maintenance effect" in existing technologies.

[0005] To solve the above problems, the technical solution of the present invention is as follows:

[0006] An automated cleaning and painting scaffolding maintenance device includes a pole maintenance unit for maintaining the horizontal and vertical poles of the scaffolding and a coupler maintenance unit for maintaining the couplers of the scaffolding.

[0007] The rod maintenance unit includes a first housing, a second housing, and a rod channel located between the first housing and the second housing. The rod channel is equipped with a stepping drive mechanism, a cement block removal mechanism, a grinding mechanism, a painting mechanism, and a drying mechanism. The stepping drive mechanism drives the rod to move in a stepping manner along the rod channel, and removes cement blocks, grinds the surface, paints, and dries the rod during the stepping process and in the gaps between adjacent steps.

[0008] The fastener maintenance unit includes a drive wheel, which is rotated by a drive motor. Several positioning frames are evenly distributed on the outer edge of the drive wheel. The bottom of the positioning frames is provided with a perforated plate. One positioning frame is movably connected to a feeding port at its upper end, and another positioning frame is movably connected to a discharge port at its lower end. The remaining positioning frames are repeatedly and alternately provided with a hammering mechanism and a high-pressure water cleaning mechanism.

[0009] The discharge port is connected to a stirring mechanism, the stirring mechanism is connected to a paint spraying mechanism, the side wall of the stirring mechanism is also provided with a first electric door, the first electric door is connected to a fastener drying mechanism, the rod curing unit is equipped with a first controller, the first controller is electrically connected to a power module and is configured to control the stepper drive mechanism, the paint spraying mechanism and the drying mechanism.

[0010] The fastener maintenance unit is equipped with a second controller, which is electrically connected to a power source and configured to control the drive motor, hammering mechanism, high-pressure water cleaning mechanism, stirring mechanism, paint spraying mechanism, first electric door, and fastener drying mechanism.

[0011] The cement block removal mechanism includes an annular cutter located at the inlet end of the sliding hole, and the grinding mechanism includes a grinding sleeve coaxially embedded in the sliding hole. On the side of the grinding mechanism away from the cement block removal mechanism, a painting mechanism and a drying mechanism are arranged in sequence.

[0012] Preferably, the right side of the top of the first housing is connected to the second housing, and rod channels are provided at the top of the first housing and through the bottom of the second housing on the left and right sides.

[0013] The rod passage includes a fixing block arranged in the left-right direction. The fixing block has a sliding hole that passes through the left and right end faces. The inner diameter of the sliding hole matches the outer diameter of the scaffold horizontal or vertical rod. The rod passage allows at least two rods to pass through end to end.

[0014] Preferably, the annular cutter has a trapezoidal cross-section, with the large-diameter end fixedly connected to the sliding hole inlet end, and the small-diameter end forming the cutting edge. The inner hole of the annular cutter is clearance-fitted with the surface of the rod after the cement block has been removed. During the input of the rod, the cement block on the surface of the rod is scraped off by the cutting edge of the annular cutter.

[0015] Preferably, the grinding sleeve is formed by two semi-circular grinding parts fastening together, and the grinding sleeve is fixedly connected to the fixing block by a set bolt;

[0016] The painting mechanism includes a first annular housing, which surrounds the fixing block and has a through-hole. A plurality of spray atomizing nozzles are evenly distributed on the inner wall of the first annular housing.

[0017] The outer circumference of the first annular shell is integrally formed with a second annular shell. The top of the outer wall of the second annular shell is connected to an atomizing paint input pipe, which is connected to an atomizing paint supply device. The bottom of the second annular shell is connected to a first pressure gas input pipe.

[0018] The first pressure gas input pipe is connected to a first pressure air supply device, and the second annular housing is equipped with a first air pressure sensor. The first air pressure sensor is electrically connected to a first controller, and the first controller is configured to control the atomizing paint supply device and the first pressure air supply device.

[0019] Preferably, the drying mechanism includes a third annular shell surrounding the fixing block, a fourth annular shell integrally formed on the outside of the third annular shell, an air inlet pipe penetrating the fourth annular shell on the inner wall of the third annular shell, and the inner end of the third annular shell communicating with a sliding hole.

[0020] The top end of the fourth annular housing is fixedly connected to an air inlet pipe, which is connected to a hot air blower. The fourth annular housing is equipped with a second air pressure sensor, and the bottom end of the fourth annular housing is connected to a second pressure air supply device through a second pressure gas input pipe.

[0021] The upper and lower ends of the fixing block between the third annular shell and the first annular shell are also provided with first cylinders along the longitudinal direction. The piston rod of the first cylinder passes through the fixing block and communicates with the sliding hole, and a semi-circular sealing gasket is connected to the end of the piston rod. When the upper and lower first cylinders act simultaneously and align and press the two semi-circular sealing gaskets together, the sliding hole is blocked and sealed at the blocking point. When the drying mechanism dries the painted surface of the rod, hot air is discharged from the output end of the sliding hole through the gap between the rod and the sliding hole. The second air pressure sensor is electrically connected to the first controller.

[0022] The first controller is configured to control the hot air blower, the second pressurized air supply device, and the first cylinder; the fixed block below the grinding sleeve is provided with a discharge port that penetrates the bottom of the fixed block, and the discharge port is connected to the side wall of the first housing through the first pipe and the second pipe to form a grinding debris discharge port;

[0023] The bottom of the inner wall of the first annular shell is also provided with a recovery pipe that runs through the second annular shell. The recovery pipe is used to collect excess paint after spraying and guide it into the second annular shell. The end of the first shell away from the sliding hole inlet is also provided with a ramp structure.

[0024] Preferably, the stepper drive mechanism includes a stepper motor, a wheel, and elastic pressure feet. The output shaft of the stepper motor is fixedly provided with a wheel, and multiple elastic pressure feet are evenly distributed on the outer circumference of the wheel.

[0025] The elastic pressure foot includes an arc-shaped pressure plate, telescopic rods connected to the four corners of the lower surface of the arc-shaped pressure plate, and a compression spring. The telescopic rod includes a sleeve whose bottom end is fixedly connected to the outer surface of the wheel, a pressure rod whose bottom end is slidably connected to the sleeve, and a pressure spring whose top end is hinged to the bottom end of the arc-shaped pressure plate. The pressure spring is sleeved on the outer circumference of the pressure rod, and the two ends of the pressure spring are respectively connected to the lower surface of the arc-shaped pressure plate and the top end of the sleeve. In its natural state, the arc-shaped pressure plate is inclined, and the end of the arc-shaped pressure plate closest to the center of the wheel contacts the surface of the rod first. As the wheel rotates, the compression spring at the other end of the arc-shaped pressure plate contracts and causes the arc-shaped pressure plate to gradually compress the rod.

[0026] There are four stepper drive mechanisms, two of which are symmetrically arranged above and below the entrance end of the sliding hole, and the other two are symmetrically arranged above and below the sliding hole on the side of the sliding hole away from the entrance end of the sliding hole. The four stepper drive mechanisms are fixedly connected to the second housing or the first housing respectively. The two arc-shaped pressure plates of the two symmetrically arranged stepper drive mechanisms work together. The four stepper drive mechanisms move synchronously under the control of the first controller.

[0027] Preferably, a support housing is fixedly connected to the bottom end of the perforated plate, and a support leg is provided at the bottom end of the support housing;

[0028] The drive motor is fixedly connected to the bottom of the support housing, and the output shaft of the drive motor passes through the support housing and the perforated plate through a sealed bearing and is connected to the drive wheel;

[0029] The positioning frame is a cubic shell with open top and bottom. The lower end of the positioning frame is slidably connected to the upper surface of the perforated plate. The drive motor is a servo motor. A discharge port is provided at a preset position on the perforated plate. A second electric door is hinged to the discharge port. When one of the positioning frames moves to the discharge port and the second controller confirms the discharge, the second electric door opens.

[0030] The discharge port is connected to a discharge pipe that passes through the side wall of the support shell via a chute. A stirring mechanism is provided on one side of the support shell. The stirring mechanism includes a barrel with an open top. A partition is provided on the lower part of the inner wall of the barrel. A stirring motor is provided below the partition. The output shaft of the stirring motor passes through the partition via a sealed bearing and is connected to a vertical shaft. Multiple stirring blades are distributed on the outer surface of the vertical shaft.

[0031] The stirring blade is a horizontally arranged trapezoidal structure. The width of the inner end of the horizontally arranged trapezoidal structure is greater than the width of the outer end. The bucket space above the partition is used to hold fasteners to be painted. An L-shaped bracket is also fixedly connected to the side wall of the bucket.

[0032] The painting mechanism includes a paint nozzle located on the lower surface of the top of the support, and the paint nozzle is connected to an atomizing paint supply device through a pipe. The fastener drying mechanism includes a recycling bin fixedly connected to the lower part of the side wall of the barrel.

[0033] The recycling bin has a ventilation pipe connected to its side wall, which is connected to a hot air supply device. The recycling bin is connected to the bin body through a first electric door. Several air outlets are distributed on the side wall of the recycling bin, and a top cover is connected to the top of the recycling bin.

[0034] Preferably, a protective cover is also connected to the top of the support housing, and the top of the positioning frame is slidably connected to the inner surface of the top of the protective cover.

[0035] The top of the protective cover is alternately equipped with a hammering mechanism and a high-pressure water cleaning mechanism around the axis of the drive wheel; the hammering mechanism includes a second cylinder and a rubber hammer, the second cylinder is fixedly connected to the top of the protective cover in the longitudinal direction, and the piston rod end of the second cylinder is fixedly connected to the rubber hammer.

[0036] When the positioning frame reaches below the rubber hammer's position, the rubber hammer moves under the action of the second cylinder to hammer the fasteners inside the positioning frame, causing the cement on the fasteners to fall off through the hammering vibration; the high-pressure water cleaning mechanism includes a high-pressure pipe connected to the protective cover and arranged longitudinally.

[0037] The high-pressure pipe is connected to a three-way connector at its top end, the bottom end of the three-way connector is connected to the top end of the high-pressure pipe, one end of the top of the three-way connector is connected to a high-pressure water supply device and is equipped with a first solenoid valve, and the other end of the top is connected to a third pressure air supply device and is equipped with a second solenoid valve.

[0038] The second controller is electrically connected to the first solenoid valve, the second solenoid valve, the third pressurized air supply device, and the second cylinder via wires. A vision sensor is provided on the top of the protective cover between the hammering mechanism and the high-pressure water cleaning mechanism and on the path of the positioning frame movement.

[0039] The second controller is connected to the vision sensor signal via a wire; the top of the protective cover above the second electric door has an observation port, and the top of the protective cover adjacent to the observation port and facing the direction of movement of the positioning frame has a feeding port.

[0040] Another objective of this invention is to provide a method for scaffolding maintenance.

[0041] A scaffolding maintenance method, employing the aforementioned automated decontamination and painting scaffolding maintenance equipment, includes the usage methods of the pole maintenance unit and the fastener maintenance unit;

[0042] The method of using the aforementioned rod maintenance unit includes the following:

[0043] (1) The rod is continuously fed from the inlet end of the sliding hole, and the cement block on the surface of the rod is scraped off by the cutting edge of the ring cutter at the inlet end.

[0044] (2) Driven by the stepper drive mechanism, the rod passes through the grinding sleeve to grind the surface of the rod.

[0045] (3) Driven by the stepper drive mechanism, the polished rod part enters the station of the painting mechanism and the polished rod surface is painted.

[0046] (4) Under the drive of the stepper drive mechanism, the painted rod part enters the work station of the drying mechanism. When the first cylinders above and below move simultaneously and align and press the two semi-circular sealing pads, the rod is fixed, the sliding hole is blocked and sealed at the blocking point, and the hot air is discharged from the output end of the sliding hole through the gap between the rod and the sliding hole.

[0047] (5) The first cylinder retracts and the stepping drive mechanism continues to operate, repeating the above steps (1)-(4) until the rod is output from the output end of the sliding hole and slides onto the ramp structure;

[0048] (6) Repeat steps (1)-(5) above to achieve continuous maintenance of several rods;

[0049] The method of using the fastener maintenance unit includes the following:

[0050] (1) The second controller puts each positioning frame in the initial position, puts in fasteners from the feeding port, and starts the drive motor. During the rotation of the drive wheel, fasteners are continuously put in from the feeding port until each positioning frame has 1 fastener.

[0051] (2) Driven by the drive motor, the positioning frame moves sequentially to the work station of each hammering mechanism and high-pressure water cleaning mechanism. The hammering loosens or even breaks the adhesive on the surface of the fastener. Under the impact of high-pressure water, the adhesive falls off and is discharged from the perforated plate.

[0052] (3) When the visual sensor detects that the surface of the fastener is clean, the third pressure air supply device is activated when the fastener moves to the next high pressure pipe position, and the surface of the fastener is dried by the airflow.

[0053] (4) When the dried fastener moves to the discharge port, the second electric door opens and the fastener enters the barrel;

[0054] (5) The fasteners inside the barrel move continuously under the stirring of the mixing blades and are painted under the action of the atomized paint output by the spraying paint mechanism.

[0055] (6) After a certain period of time, the first electric door is opened, and the fastener is transported to the collection bucket under the rotation of the stirring blades and dried in the collection bucket.

[0056] The present invention provides an automated cleaning and painting scaffolding maintenance equipment and method with the following beneficial effects: The present invention realizes automated maintenance of poles and fasteners, which can greatly save labor, improve maintenance efficiency, ensure maintenance effect, extend the service life of poles and fasteners, reduce labor intensity, and improve the level of intelligence of construction methods. Attached Figure Description

[0057] Figure 1 A schematic diagram of the overall structure of the rod maintenance unit of the present invention;

[0058] Figure 2 A partial cross-sectional view of the rod maintenance unit of the present invention (with the second shell removed);

[0059] Figure 3 A front view schematic diagram of the stepping drive mechanism for the rod maintenance unit of the present invention;

[0060] Figure 4 A side view of the stepping drive mechanism for the rod maintenance unit of the present invention;

[0061] Figure 5 A partial cross-sectional view of the fastener maintenance unit of the present invention;

[0062] Figure 6 A schematic diagram showing the positional relationship between the drive wheel and the positioning frame of the fastener maintenance unit of the present invention;

[0063] Figure 7 A top view of the top of the protective cover of the fastener maintenance unit of the present invention;

[0064] 01. Support shell; 02. Perforated plate; 03. Positioning frame; 04. High-pressure pipe; 05. T-connector; 06. Second cylinder; 07. Rubber hammer; 08. Fastener; 09. Drive motor; 010. Feeding port; 011. Observation port; 012. Chute; 013. Second electric gate; 014. Discharge pipe; 015. Barrel body; 016. Agitator motor; 017. Paint spray head; 018. Pipeline; 019. Atomizing paint supply device; 020. Bracket; 021. Recycling bin; 022. First electric gate; 023. Ventilation pipe; 024. Sewage discharge pipe; 025. Drive wheel; 026. Vision sensor;

[0065] 1: First housing; 2: Second housing; 3: Sloping structure; 4: Grinding debris discharge port; 5: Ring cutter; 6: Rod; 7: Fixing block; 8: Painting mechanism; 9: First cylinder; 10: Fourth ring housing; 11: Atomized paint input pipe; 12: Air inlet pipe; 13: Spray atomizing nozzle; 14: Support leg; 15: Recovery pipe; 16: First air pressure sensor; 17: First pressure gas input pipe; 18: Second pressure gas input pipe; 19: Second ring housing 20: First annular housing; 21: Second air pressure sensor; 22: Sliding hole; 23: Grinding sleeve; 24: Stepper drive mechanism; 24-1: Wheel; 24-2: Output shaft; 24-3: First connecting post; 24: Second connecting post; 24-5: Arc-shaped pressure plate; 24-6: Second compression spring; 24-7: First compression spring; 24-8: Pressure rod; 24-9: Sleeve; 24-10: Stepper motor; 25: First connecting pipe; 26: Second connecting pipe. Detailed Implementation

[0066] The following description provides a detailed explanation of the embodiments of the present invention in a step-by-step manner. This description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0067] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limiting this invention.

[0068] Example 1, such as Figure 1-7 As shown:

[0069] An automated cleaning and painting scaffolding maintenance device includes a pole maintenance unit for maintaining scaffold horizontal and vertical poles and a coupler maintenance unit for maintaining scaffold couplers. The pole maintenance unit includes a first housing 1, a second housing 2, and a pole channel disposed between the first housing and the second housing. The pole channel is equipped with a stepping drive mechanism, a cement block removal mechanism, a grinding mechanism, a painting mechanism, and a drying mechanism.

[0070] The stepping drive mechanism drives the rod 6 to move in a stepping manner along the rod channel, and removes cement blocks, grinds the surface, paints, and dries the rod during the stepping process and in the gaps between adjacent steps. The fastener maintenance unit includes a drive wheel 025, which is rotated by a drive motor 09. Several positioning frames 03 are evenly distributed on the outer edge of the drive wheel 025. The bottom of the positioning frames 03 is provided with a perforated plate 02. One positioning frame 03 is movably connected to a feeding port 010 at its upper end, and another positioning frame is movably connected to a discharge port (not marked in the figure) at its lower end. The remaining positioning frames 03 are repeatedly and alternately equipped with a hammering mechanism and a high-pressure water cleaning mechanism.

[0071] The discharge port is connected to a stirring mechanism, which in turn is connected to a painting mechanism. A first electric door 022 is also provided on the side wall of the stirring mechanism, and this first electric door 022 is connected to a fastener drying mechanism. The rod maintenance unit is equipped with a first controller (not shown in the figure), which is electrically connected to a power module and configured to control the stepper drive mechanism, the painting mechanism, and the drying mechanism. The fastener maintenance unit is equipped with a second controller (not marked in the figure), which is electrically connected to a power source and configured to control the drive motor, the hammering mechanism, the high-pressure water cleaning mechanism, the stirring mechanism, the painting mechanism, the first electric door, and the fastener drying mechanism.

[0072] Example 2, as follows Figure 1-7 As shown:

[0073] This embodiment is an improvement based on Embodiment 1, specifically as follows:

[0074] A second housing 2 is connected to the right side of the top of the first housing 1. Rod channels are provided at the top of the first housing 1 and extending through the bottom of the second housing 2 at both the left and right ends. Each rod channel includes a fixing block 7 arranged in a left-right direction. The fixing block 7 has a sliding hole 22 penetrating the left and right end faces. The inner diameter of the sliding hole 22 matches the outer diameter of the scaffold horizontal or vertical bar. The rod channel allows at least two rods 6 to pass through end-to-end. This matching should be understood as enabling the rods to pass through, remove cement blocks, grind, paint, and dry.

[0075] The cement block removal mechanism includes an annular cutter 5 located at the inlet end of the sliding hole 22. The annular cutter 5 has a trapezoidal cross-section, with its larger diameter end fixedly connected to the inlet end of the sliding hole 22, and its smaller diameter end forming the cutting edge. The inner hole of the annular cutter is clearance-fitted with the surface of the rod 6 after the cement block has been removed. During the input of the rod 6, the cutting edge of the annular cutter 5 scrapes away the cement block from the surface of the rod 6. Figure 2 As shown, the preferred method is that the inner hole of the ring cutter is coaxial with the sliding hole and has the same inner diameter.

[0076] The grinding mechanism includes a grinding sleeve 23 coaxially embedded in the sliding hole 22. The grinding sleeve 23 is formed by two semi-circular grinding parts fastened together. The grinding sleeve 23 is fixedly connected to the fixing block 7 by a set bolt (not marked in the figure). On the side of the grinding mechanism away from the cement block removal mechanism, there are a painting mechanism and a drying mechanism in sequence. The painting mechanism 8 includes a first annular shell 20. The first annular shell 20 is arranged around the fixing block and passes through the sliding hole (that is, the inner end of the first annular shell is open). A number of spray atomizing nozzles 13 are evenly distributed on the inner wall of the first annular shell 20.

[0077] The outer circumference of the first annular shell is integrally formed with a second annular shell 19. The top of the outer wall of the second annular shell 19 is connected to an atomizing paint input pipe 11, which is connected to an atomizing paint supply device (not shown in the figure). The bottom of the second annular shell 19 is connected to a first pressure gas input pipe 17, which is connected to a first pressure air supply device (not shown in the figure).

[0078] The second annular housing 19 is provided with a first air pressure sensor 16, which is electrically connected to a first controller. The first controller is configured to control the atomizing paint supply device and the first pressurized air supply device. By controlling the control, the pressure inside the second annular housing is kept constant, thereby ensuring uniform spraying on the surface of the rod. The drying mechanism includes a third annular housing (not marked in the figure) surrounding the fixing block 7, and a fourth annular housing 10 is integrally formed on the outside of the third annular housing.

[0079] The inner wall of the third annular shell is provided with an air inlet pipe that passes through the fourth annular shell. The inner end of the third annular shell is connected to a sliding hole. The top end of the fourth annular shell is fixedly connected to an air inlet pipe 12, which is connected to a hot air blower (not shown in the figure). The fourth annular shell is provided with a second air pressure sensor 21. The bottom end of the fourth annular shell is connected to a second pressure air supply device (not shown in the figure) through a second pressure gas input pipe 18. The upper and lower ends of the fixing block 7 between the third annular shell and the first annular shell are also provided with a first cylinder 9 along the longitudinal direction.

[0080] The piston rod of the first cylinder 9 passes through the fixed block and communicates with the sliding hole, and a semi-circular sealing gasket (not marked in the figure) is connected to the end of the piston rod. When the upper and lower first cylinders act simultaneously and align and press the two semi-circular sealing gaskets together, the sliding hole is blocked and sealed at the blocking point. When the drying mechanism dries the painted surface of the rod, hot air is discharged from the output end of the sliding hole through the gap between the rod and the sliding hole, so as to avoid the hot air interfering with the operation of the painting mechanism. The second air pressure sensor 21 is electrically connected to the first controller.

[0081] The first controller is configured to control the hot air blower, the second pressurized air supply device, and the first cylinder; the fixed block 7 below the grinding sleeve 23 is provided with a discharge port (not marked in the figure) that passes through the bottom end of the fixed block 7. The discharge port passes through the first pipe 25 and the second pipe 26 to form a grinding debris discharge port 4 through the side wall of the first housing 1, that is, the debris is discharged while grinding to avoid interference with subsequent processes.

[0082] The bottom of the inner wall of the first annular shell 20 is also provided with a recovery pipe 15 that penetrates the second annular shell 19. The recovery pipe is used to collect excess paint after spraying and guide it into the second annular shell 19. The end of the first shell away from the sliding hole inlet is also provided with a ramp structure 3 to provide cushioning for the rod.

[0083] Example 3, such as Figure 1-7 As shown:

[0084] This embodiment is an improvement based on Embodiment 2, specifically as follows:

[0085] The stepper drive mechanism 24 includes a stepper motor 24-10, a wheel 24-1, and elastic pressure feet. The output shaft of the stepper motor 24-10 is fixedly mounted on the wheel 24-1. Multiple elastic pressure feet are evenly distributed on the outer circumference of the wheel 24-1. Each elastic pressure foot includes an arc-shaped pressure plate 24-5, a telescopic rod connected to the four corners of the lower surface of the arc-shaped pressure plate 24-5, and a compression spring (a first compression spring 24-7 and a second compression spring 24-6). The telescopic rod includes a sleeve 24-9 whose bottom end is fixedly connected to the outer surface of the wheel (e.g., by setting a first connecting post 24-3 and a second connecting post 24-4 on the outer surface of the wheel and connecting it to the sleeve), and a pressure rod 24-8 slidably connected to the sleeve at the bottom.

[0086] The top end of the pressure rod 24-8 is hinged to the bottom end of the arc-shaped pressure plate 24-5. A compression spring is sleeved on the outer periphery of the pressure rod 24-8. The two ends of the compression spring are respectively connected to the lower surface of the arc-shaped pressure plate and the top end of the sleeve. In the natural state, the arc-shaped pressure plate 24-5 is inclined. The end of the arc-shaped pressure plate closest to the center of the wheel 24-1 first contacts the surface of the rod 6. As the wheel 24-1 rotates, the compression spring (i.e., the second compression spring 24-6) at the other end of the arc-shaped pressure plate contracts and causes the arc-shaped pressure plate to gradually press the rod. This setting can improve the stability of the stepping drive mechanism. After pressing, as the wheel rotates, the rod is moved forward by one step.

[0087] There are four stepper drive mechanisms. Two are symmetrically arranged above and below the entrance end of the sliding hole 22, and the other two are symmetrically arranged above and below the sliding hole on the side of the sliding hole 22 away from the entrance end, along the bisector of the sliding hole. The four stepper drive mechanisms are fixedly connected to the second housing 2 or the first housing 1, respectively. The two arc-shaped pressure plates of the two symmetrically arranged stepper drive mechanisms work together. The four stepper drive mechanisms operate synchronously under the control of the first controller. The purpose of setting two sets of stepper drive mechanisms is to provide output power to the two rods in the sliding hole respectively. The synchronous operation of the four stepper drive mechanisms realizes assembly line operation. It should be noted that the action of the first cylinder not only blocks and seals the sliding hole, but also controls the step distance of the stepper drive mechanism, so that the distance of each step of the rod is fixed, ensuring the comprehensive maintenance effect on the surface of the rod.

[0088] Example 4, such as Figure 1-7 As shown:

[0089] This embodiment is an improvement based on embodiment 3, specifically as follows:

[0090] The bottom end of the perforated plate 02 is fixedly connected to a support housing 01. The bottom end of the support housing 01 is provided with support legs. The drive motor 09 is fixedly connected to the bottom of the support housing 01. The output shaft of the drive motor 09 passes through the support housing 01 and the perforated plate 02 through a sealed bearing and is connected to the drive wheel 025. The positioning frame 03 is a cubic shell with open top and bottom ends. The lower end of the positioning frame 03 is slidably connected to the upper surface of the perforated plate 02. The drive motor 09 is a servo motor. A discharge port is provided at a preset position on the perforated plate 02.

[0091] The discharge port is hinged with a second electric door 013. When one of the positioning frames 03 moves to the discharge port and the second controller confirms the discharge, the second electric door 013 opens. The discharge port is connected to a discharge pipe 014 that passes through the side wall of the support housing via a chute 012.

[0092] The supporting shell 01 is equipped with a stirring mechanism on one side. The stirring mechanism includes a barrel 015 with an open upper end. A partition is provided on the lower part of the inner wall of the barrel 015. A stirring motor 016 is provided below the partition. The output shaft of the stirring motor 016 passes through the partition through a sealed bearing and is connected to a vertical shaft (not marked in the figure). Multiple stirring blades (not marked in the figure) are distributed on the outer surface of the vertical shaft. The stirring blades are horizontally arranged trapezoidal structures. The width of the inner end of the horizontally arranged trapezoidal structure is greater than the width of the outer end. The purpose of this arrangement is to facilitate the placement of fasteners into the collection bucket after the painting is completed. The space above the partition of the barrel 015 is used to hold the fasteners 08 to be painted.

[0093] The barrel body 015 is also fixedly connected to an L-shaped bracket 020 on its side wall. The painting mechanism includes a paint nozzle 017 located on the lower surface of the top of the bracket 020. The paint nozzle 017 is connected to an atomizing paint supply device 019 via a pipe 018. The fastener drying mechanism includes a recycling bin 021 fixedly connected to the lower part of the side wall of the barrel body 015. A ventilation pipe 023 is connected to the side wall of the recycling bin 021. The ventilation pipe 023 is connected to a hot air supply device (not shown in the figure). The recycling bin 021 is connected to the barrel body 015 via a first electric door 022. Several air outlets are distributed on the side wall of the recycling bin 021. A top cover is connected to the top of the recycling bin. A sewage discharge pipe 024 is provided on the side wall of the supporting shell.

[0094] The top of the support housing 01 is also connected to a protective cover (not marked in the figure). The top of the positioning frame 03 is slidably connected to the inner surface of the top of the protective cover. The top of the protective cover is alternately provided with a hammering mechanism and a high-pressure water cleaning mechanism around the axis of the drive wheel. The hammering mechanism includes a second cylinder 06 and a rubber hammer 07.

[0095] The second cylinder 06 is fixedly connected to the top of the protective cover along the longitudinal direction. A rubber hammer 07 is fixedly connected to the end of the piston rod of the second cylinder 06. When the positioning frame 03 reaches below the position of the rubber hammer, the rubber hammer 07 is driven by the second cylinder 06 to strike the fastener 08 in the positioning frame, causing the cement on the fastener to fall off through the hammering vibration. The high-pressure water cleaning mechanism includes a high-pressure pipe 04 connected to the protective cover and arranged along the longitudinal direction. The top end of the high-pressure pipe 04 is connected to a three-way connector 05, and the bottom end of the three-way connector 05 is connected to the top end of the high-pressure pipe. One end of the top of the three-way connector is connected to a high-pressure water supply device (not shown in the figure) and is equipped with a first solenoid valve. The other end of the top is connected to a third pressurized air supply device (not shown in the figure) and is equipped with a second solenoid valve.

[0096] The second controller is electrically connected to the first solenoid valve, the second solenoid valve, the third pressurized air supply device, and the second cylinder via wires. A vision sensor 026 is provided on the top of the protective cover between the hammering mechanism and the high-pressure water cleaning mechanism and on the path of the positioning frame movement. The second controller is signal-connected to the vision sensor 026 via wires. An observation port 011 is provided on the top of the protective cover above the second electric door 016. A feeding port 010 is provided on the top of the protective cover adjacent to the observation port 011 and facing the movement direction of the positioning frame 03.

[0097] Example 5, as follows Figure 1-7 As shown:

[0098] This embodiment discloses a maintenance method for scaffolding members and couplers based on the above embodiments, as detailed below:

[0099] A scaffolding maintenance method: including the usage method of pole maintenance unit and the usage method of fastener maintenance unit;

[0100] The method of using the aforementioned rod maintenance unit includes the following:

[0101] (1) The rod 6 is continuously fed from the inlet end of the sliding hole, and the cement block on the surface of the rod 6 is scraped off by the cutting edge of the ring cutter 5 at the inlet end.

[0102] (2) Driven by the stepper drive mechanism 24, the rod 6 passes through the grinding sleeve 23 to grind the surface of the rod.

[0103] (3) Driven by the stepper drive mechanism 24, the polished rod 6 enters the painting mechanism station and the polished rod 6 is painted.

[0104] (4) Under the drive of the stepping drive mechanism 24, the painted rod 6 enters the work station of the drying mechanism. When the upper and lower first cylinders 9 act simultaneously and align and press the two semi-circular sealing pads, the rod is fixed, the sliding hole is blocked and sealed at the blocking point, and hot air is discharged from the output end of the sliding hole through the gap between the rod and the sliding hole.

[0105] (5) The first cylinder 9 retracts, the stepping drive mechanism 24 continues to operate, and repeats the above steps (1)-(4) until the rod is output from the output end of the sliding hole and slides onto the ramp structure 3;

[0106] (6) Repeat steps (1)-(5) above to achieve continuous maintenance of several rods 6.

[0107] The usage instructions for the fastener maintenance unit include the following:

[0108] (1) The second controller puts each positioning frame 03 in the initial position, puts in fasteners 08 from the feeding port 010, and starts the drive motor. During the rotation of the drive wheel 025, fasteners 08 are continuously put in from the feeding port 010 until each positioning frame 03 has 1 fastener 08.

[0109] (2) Driven by the drive motor, the positioning frame 03 moves sequentially to the work station of each hammering mechanism and high-pressure water cleaning mechanism. The hammering loosens or even breaks the adhesive on the surface of the fastener. Under the impact of high-pressure water, the adhesive falls off and is discharged from the perforated plate.

[0110] (3) When the visual sensor 026 detects that the surface of the fastener 08 is clean, when the fastener 08 moves to the position of the next high-pressure pipe 04, the third pressure air supply device is activated to dry the surface of the fastener by airflow.

[0111] (4) When the dried fastener 08 moves to the discharge port, the second electric door 013 opens and the fastener enters the barrel 015.

[0112] (5) The fastener 08 inside the barrel 015 moves continuously under the stirring of the stirring blades and is painted under the action of the atomized paint output by the spraying paint mechanism.

[0113] (6) After a certain period of time, the first electric door 022 is opened, and the fastener is transported to the collection bucket 021 under the rotation of the stirring blades and dried in the collection bucket 021.

Claims

1. An automated cleaning and painting scaffolding maintenance device, characterized in that: This includes a member maintenance unit for maintaining the horizontal and vertical members of scaffolding, and a coupler maintenance unit for maintaining scaffolding couplers. The rod maintenance unit includes a first housing, a second housing, and a rod channel located between the first housing and the second housing. The rod channel is equipped with a stepping drive mechanism, a cement block removal mechanism, a grinding mechanism, a painting mechanism, and a drying mechanism. The stepping drive mechanism drives the rod to move in a stepping manner along the rod channel, and removes cement blocks, grinds the surface, paints, and dries the rod during the stepping process and in the gaps between adjacent steps. The fastener maintenance unit includes a drive wheel, which is rotated by a drive motor. Several positioning frames are evenly distributed on the outer edge of the drive wheel. The bottom of the positioning frames is provided with a perforated plate. One positioning frame is movably connected to a feeding port at its upper end, and another positioning frame is movably connected to a discharge port at its lower end. The remaining positioning frames are repeatedly and alternately provided with a hammering mechanism and a high-pressure water cleaning mechanism. The discharge port is connected to a stirring mechanism, the stirring mechanism is connected to a paint spraying mechanism, the side wall of the stirring mechanism is also provided with a first electric door, the first electric door is connected to a fastener drying mechanism, the rod curing unit is equipped with a first controller, the first controller is electrically connected to a power module and is configured to control the stepper drive mechanism, the paint spraying mechanism and the drying mechanism. The fastener maintenance unit is equipped with a second controller, which is electrically connected to a power source and configured to control the drive motor, hammering mechanism, high-pressure water cleaning mechanism, stirring mechanism, paint spraying mechanism, first electric door, and fastener drying mechanism. The cement block removal mechanism includes an annular cutter at the inlet end of the sliding hole, and the grinding mechanism includes a grinding sleeve coaxially embedded in the sliding hole. On the side of the grinding mechanism away from the cement block removal mechanism, a painting mechanism and a drying mechanism are arranged in sequence. The right side of the top of the first housing is connected to the second housing, and rod channels are provided at the top of the first housing and through the bottom of the second housing on the left and right sides. The rod passage includes a fixing block arranged in the left-right direction. The fixing block has a sliding hole that passes through the left and right end faces. The inner diameter of the sliding hole matches the outer diameter of the scaffold horizontal or vertical rod. The rod passage allows at least two rods to pass through end to end. The grinding sleeve is formed by two semi-circular grinding parts fastening together, and the grinding sleeve is fixedly connected to the fixing block by a set bolt; The painting mechanism includes a first annular housing, which surrounds the fixing block and has a through-hole. A plurality of spray atomizing nozzles are evenly distributed on the inner wall of the first annular housing. The outer circumference of the first annular shell is integrally formed with a second annular shell. The top of the outer wall of the second annular shell is connected to an atomizing paint input pipe, which is connected to an atomizing paint supply device. The bottom of the second annular shell is connected to a first pressure gas input pipe. The first pressure gas input pipe is connected to a first pressure air supply device, and the second annular housing is equipped with a first air pressure sensor. The first air pressure sensor is electrically connected to a first controller, and the first controller is configured to control the atomizing paint supply device and the first pressure air supply device.

2. The automated cleaning and painting scaffolding maintenance equipment as described in claim 1, characterized in that: The ring cutter has a trapezoidal cross-section, with the large-diameter end fixedly connected to the sliding hole inlet end and the small-diameter end forming the cutting edge. The inner hole of the ring cutter is clearance-fitted with the surface of the rod after the cement block has been removed. During the input of the rod, the cement block on the surface of the rod is scraped off by the cutting edge of the ring cutter.

3. The automated cleaning and painting scaffolding maintenance equipment as described in claim 1, characterized in that: The drying mechanism includes a third annular shell surrounding the fixed block, and a fourth annular shell integrally formed on the outside of the third annular shell. The inner wall of the third annular shell is provided with an air inlet pipe that passes through the fourth annular shell, and the inner end of the third annular shell is connected to a sliding hole. The top end of the fourth annular housing is fixedly connected to an air inlet pipe, which is connected to a hot air blower. The fourth annular housing is equipped with a second air pressure sensor, and the bottom end of the fourth annular housing is connected to a second pressure air supply device through a second pressure gas input pipe. The upper and lower ends of the fixing block between the third annular shell and the first annular shell are also provided with first cylinders along the longitudinal direction. The piston rod of the first cylinder passes through the fixing block and communicates with the sliding hole, and a semi-circular sealing gasket is connected to the end of the piston rod. When the upper and lower first cylinders act simultaneously and align and press the two semi-circular sealing gaskets together, the sliding hole is blocked and sealed at the blocking point. When the drying mechanism dries the painted surface of the rod, hot air is discharged from the output end of the sliding hole through the gap between the rod and the sliding hole. The second air pressure sensor is electrically connected to the first controller. The first controller is configured to control the hot air blower, the second pressurized air supply device, and the first cylinder; the fixed block below the grinding sleeve is provided with a discharge port that penetrates the bottom of the fixed block, and the discharge port is connected to the side wall of the first housing through the first pipe and the second pipe to form a grinding debris discharge port; The bottom of the inner wall of the first annular shell is also provided with a recovery pipe that runs through the second annular shell. The recovery pipe is used to collect excess paint after spraying and guide it into the second annular shell. The end of the first shell away from the sliding hole inlet is also provided with a ramp structure.

4. The automated cleaning and painting scaffolding maintenance equipment as described in claim 3, characterized in that: The stepper drive mechanism includes a stepper motor, a wheel, and elastic pressure feet. The output shaft of the stepper motor is fixedly equipped with a wheel, and multiple elastic pressure feet are evenly distributed on the outer circumference of the wheel. The elastic pressure foot includes an arc-shaped pressure plate, telescopic rods connected to the four corners of the lower surface of the arc-shaped pressure plate, and a compression spring. The telescopic rod includes a sleeve whose bottom end is fixedly connected to the outer surface of the wheel, a pressure rod whose bottom end is slidably connected to the sleeve, and a pressure spring whose top end is hinged to the bottom end of the arc-shaped pressure plate. The pressure spring is sleeved on the outer circumference of the pressure rod, and the two ends of the pressure spring are respectively connected to the lower surface of the arc-shaped pressure plate and the top end of the sleeve. In its natural state, the arc-shaped pressure plate is inclined, and the end of the arc-shaped pressure plate closest to the center of the wheel contacts the surface of the rod first. As the wheel rotates, the compression spring at the other end of the arc-shaped pressure plate contracts and causes the arc-shaped pressure plate to gradually compress the rod. There are four stepper drive mechanisms, two of which are symmetrically arranged above and below the entrance end of the sliding hole, and the other two are symmetrically arranged above and below the sliding hole on the side of the sliding hole away from the entrance end of the sliding hole. The four stepper drive mechanisms are fixedly connected to the second housing or the first housing respectively. The two arc-shaped pressure plates of the two symmetrically arranged stepper drive mechanisms work together. The four stepper drive mechanisms move synchronously under the control of the first controller.

5. The automated cleaning and painting scaffolding maintenance equipment as described in claim 4, characterized in that: The bottom end of the perforated plate is fixedly connected to a support housing, and the bottom end of the support housing is provided with support legs; The drive motor is fixedly connected to the bottom of the support housing, and the output shaft of the drive motor passes through the support housing and the perforated plate through a sealed bearing and is connected to the drive wheel; The positioning frame is a cubic shell with open top and bottom. The lower end of the positioning frame is slidably connected to the upper surface of the perforated plate. The drive motor is a servo motor. A discharge port is provided at a preset position on the perforated plate. A second electric door is hinged to the discharge port. When one of the positioning frames moves to the discharge port and the second controller confirms the discharge, the second electric door opens. The discharge port is connected to a discharge pipe that passes through the side wall of the support shell via a chute. A stirring mechanism is provided on one side of the support shell. The stirring mechanism includes a barrel with an open top. A partition is provided on the lower part of the inner wall of the barrel. A stirring motor is provided below the partition. The output shaft of the stirring motor passes through the partition via a sealed bearing and is connected to a vertical shaft. Multiple stirring blades are distributed on the outer surface of the vertical shaft. The stirring blade is a horizontally arranged trapezoidal structure. The width of the inner end of the horizontally arranged trapezoidal structure is greater than the width of the outer end. The bucket space above the partition is used to hold fasteners to be painted. An L-shaped bracket is also fixedly connected to the side wall of the bucket. The painting mechanism includes a paint nozzle located on the lower surface of the top of the support, and the paint nozzle is connected to an atomizing paint supply device through a pipe. The fastener drying mechanism includes a recycling bin fixedly connected to the lower part of the side wall of the barrel. The recycling bin has a ventilation pipe connected to its side wall, which is connected to a hot air supply device. The recycling bin is connected to the bin body through a first electric door. Several air outlets are distributed on the side wall of the recycling bin, and a top cover is connected to the top of the recycling bin.

6. The automated cleaning and painting scaffolding maintenance equipment as described in claim 5, characterized in that: The top of the support housing is also connected to a protective cover, and the top of the positioning frame is slidably connected to the inner surface of the top of the protective cover. The top of the protective cover is alternately equipped with a hammering mechanism and a high-pressure water cleaning mechanism around the axis of the drive wheel; the hammering mechanism includes a second cylinder and a rubber hammer, the second cylinder is fixedly connected to the top of the protective cover in the longitudinal direction, and the piston rod end of the second cylinder is fixedly connected to the rubber hammer. When the positioning frame reaches below the rubber hammer's position, the rubber hammer moves under the action of the second cylinder to hammer the fasteners inside the positioning frame, causing the cement on the fasteners to fall off through the hammering vibration; the high-pressure water cleaning mechanism includes a high-pressure pipe connected to the protective cover and arranged longitudinally. The high-pressure pipe is connected to a three-way connector at its top end, the bottom end of the three-way connector is connected to the top end of the high-pressure pipe, one end of the top of the three-way connector is connected to a high-pressure water supply device and is equipped with a first solenoid valve, and the other end of the top is connected to a third pressure air supply device and is equipped with a second solenoid valve. The second controller is electrically connected to the first solenoid valve, the second solenoid valve, the third pressurized air supply device, and the second cylinder via wires. A vision sensor is provided on the top of the protective cover between the hammering mechanism and the high-pressure water cleaning mechanism and on the path of the positioning frame movement. The second controller is connected to the vision sensor signal via a wire; the top of the protective cover above the second electric door has an observation port, and the top of the protective cover adjacent to the observation port and facing the direction of movement of the positioning frame has a feeding port.

7. A method for scaffold maintenance, employing the automated decontamination and painting scaffold maintenance equipment as described in any one of claims 1 to 6, characterized in that: This includes instructions on how to use the pole maintenance unit and the fastener maintenance unit; The method of using the aforementioned rod maintenance unit includes the following: (1) The rod is continuously fed from the inlet end of the sliding hole, and the cement block on the surface of the rod is scraped off by the cutting edge of the ring cutter at the inlet end. (2) Driven by the stepper drive mechanism, the rod passes through the grinding sleeve to grind the surface of the rod; (3) Driven by the stepper drive mechanism, the polished rod part enters the station of the painting mechanism and the polished rod surface is painted. (4) Under the drive of the stepper drive mechanism, the painted rod part enters the work station of the drying mechanism. When the first cylinders of the upper and lower parts move at the same time and align and press the two semi-circular sealing gaskets, the rod is fixed, the sliding hole is blocked and sealed at the blocking point, and the hot air is discharged from the output end of the sliding hole through the gap between the rod and the sliding hole. (5) The first cylinder retracts, and the stepping drive mechanism continues to operate, repeating the above steps (1)-(4) until the rod is output from the output end of the sliding hole and slides onto the ramp structure; (6) Repeat steps (1)-(5) above to achieve continuous maintenance of several rods; The method of using the fastener maintenance unit includes the following: (1) The second controller puts each positioning frame in the initial position, puts in fasteners from the feeding port, and starts the drive motor. During the rotation of the drive wheel, fasteners are continuously put in from the feeding port until each positioning frame has 1 fastener. (2) Driven by the drive motor, the positioning frame moves sequentially to the work station of each hammering mechanism and high-pressure water cleaning mechanism. The hammering loosens or even breaks the adhesive on the surface of the fastener. Under the impact of high-pressure water, the adhesive falls off and is discharged from the perforated plate. (3) When the visual sensor detects that the surface of the fastener is clean, when the fastener moves to the next high-pressure pipe position, the third pressure air supply device is activated to dry the surface of the fastener by airflow. (4) When the fastener is moved to the discharge port after being dried, the second electric door opens and the fastener enters the barrel; (5) The fasteners inside the barrel move continuously under the stirring of the mixing blades and are painted under the action of the atomized paint output by the spraying paint mechanism. (6) After a certain period of time, the first electric door is opened, and the fastener is transported to the collection bucket under the rotation of the stirring blades and dried in the collection bucket.

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