38results about How to "Fast painting" patented technology

The invention discloses an all-in-one full-automatic wall surface plastering unit and a use method thereof. The all-in-one full-automatic wall surface plastering unit comprises a transportation vehicle, four identical bracket structures arranged on the transportation vehicle in sequence, a plastering mechanism arranged above the bracket structure, and a control system, wherein a power supply for supplying power to the whole plastering unit is arranged in the transportation vehicle; the plastering mechanism comprises a spraying system, a roller device, a scraper device and grinding units which are connected with the power supply and are arranged above the four bracket structures in sequence; the control system comprises a controller arranged in the transportation vehicle and a motor set connected in series with the power supply and the controller; and the controller is further electrically connected with the roller device, the scraper device, small-size grinding machines and a dust collector. The plastering unit can replace a worker to realize at least 95 percent of the working amount in the construction project; the height and the width of construction can be controlled by the controller; and the all-in-one full-automatic wall surface plastering unit is high in construction speed, high in efficiency and suitable for popularization and application and can effectively avoid the risk caused by high-place work of personnel.

The invention relates to an automatic coating-pouring-type whitewashing robot used for indoor building wall decoration. The automatic coating-pouring-type whitewashing robot comprises a lower platform, the lower end surface of which is provided with four universal wheels symmetrically. By means of the four universal wheels, the automatic coating-pouring-type whitewashing robot can move at will to below a to-be-whitewashed wall surface. The lower platform is uniformly provided with six parallel branched chains. Upper ends of the six parallel branched chains are uniformly installed on an upper platform. The middle part of the upper end surface of the upper platform is equipped with an air extracting pump through screws. The right side of the upper end surface of the upper platform is uniformly welded with three L-shaped support columns, tail ends of which are welded with air extracting support boards. Inner walls of the air extracting support boards are respectively equipped with a first sucker, a second sucker and a third sucker through screws. The upper end surface of the upper platform is symmetrically welded with four air extracting top columns. The upper end surfaces of the four air extracting top columns are welded with an elevating table, the upper end of which is equipped with a whitewashing manipulator through screws. The intelligent whitewashing robot used for the indoor building wall decoration has functions of stably elevating and automatically whitewashing. A new way for mechanically and automatically whitewashing wall surfaces is provided.

The invention relates to an automatic wall face plastering device for a building. The automatic wall face plastering device comprises a fixing sheet. A plastering strut is welded to the middle portion of the upper end face of the fixing sheet. A plastering supporting board is welded to the tail end of the plastering strut. Two plastering baffles are symmetrically welded to the two ends of the inner wall of the plastering supporting board. Two second linear sliding rails are installed on the inner walls of the two plastering baffles through screws. Two second hydraulic cylinders are symmetrically installed on the inner wall of the plastering supporting board. A plastering sliding block is installed at the top ends of the two second hydraulic cylinders. Two plastering sliding columns are symmetrically welded to the two ends of the plastering sliding block. The tail ends of the two plastering sliding columns are installed on the two second linear sliding rails. Under the effect of the limiting and supporting motion of the two plastering sliding columns and the second linear sliding rails, the second hydraulic cylinders drive the plastering sliding block to move back and forth stably. By the adoption of the automatic wall face plastering device for the building, the stable automatic plastering function can be achieved, and a new way for mechanically and automatically plastering a wall face is provided.

The invention relates to an automatic building wall plastering device based on a six-freedom-degree parallel mechanism. The automatic building wall plastering device comprises a lower platform. Four universal wheels are symmetrically arranged on the lower end face of the lower platform. Six parallel branch chains are evenly installed on the lower platform in the axis direction. The upper ends of the six parallel branch chains are all evenly installed on an upper platform. A plastering mechanical hand is installed at the middle portion of the upper end face of the upper platform through screws. By the adoption of the automatic building wall plastering device, the 6-SPS parallel mechanism is composed of the lower platform serving as a fixed platform, the six SPS parallel branch chains and the upper platform serving as a movable platform, the 6-SPS parallel mechanism has six freedom degrees and has the beneficial effects of being good in dynamic response, high in rigidity, large in bearing capacity, good in stability, high in motion accuracy and the like, and six first hydraulic cylinders on the six parallel branch chains move at the same time to drive the plastering mechanical hand on the upper platform to achieve the stable lifting and automatic plastering function. By the adoption of the automatic building wall plastering device, the stable lifting and automatic plastering function can be achieved, and a new way for mechanically and automatically plastering a wall face is provided.

The invention relates to a building wall face plastering robot which comprises a fixing rack. Six parallel connection branch chains are installed on the fixing rack. The upper ends of the six parallel connection branch chains are all installed on an upper platform. A sucking pump is installed at the middle portion of the upper end face of the upper platform through screws. Three L-shaped struts are evenly welded to the right side of the upper end face of the upper platform. A sucking supporting board is welded to the tail ends of the three L-shaped struts. A first suction cup, a second suction cup and a third suction cup are installed on the inner wall of the sucking supporting board through screws. The first suction cup is connected with the second suction cup through a first connecting air pipe. A sucking pipe is connected to a sucking opening of the sucking pump and communicates with the first connecting air pipe. Four sucking jacking columns are symmetrically welded to the upper end face of the upper platform. A lifting device is welded to the upper end faces of the four sucking jacking columns. A plastering mechanical hand is installed at the upper end of the lifting device through screws. By the adoption of the building wall face plastering robot, the stable lifting and automatic plastering function can be achieved, and a new way for mechanically and automatically plastering a wall face is provided.

The invention relates to a painting device for decoration, in particular to a rapid high-wall painting device for decoration. The rapid high-wall painting device for decoration is high in automation degree, high in painting speed and simple to operate. The rapid high-wall painting device comprises a bottom plate, wheels, a pushing handle, a swing device, a swing base, an air cylinder, a swing rod, a first fixing sleeve, a mounting frame, a paint box, a water pump, a hose, a lifting rod, an L-shaped connection rod, a first motor, a second fixing sleeve, a spray nozzle, a fixing base, a second motor and a roller. The pushing handle is arranged at the left end of the bottom plate. The swing device and the paint box are arranged at the top of the bottom plate. The swing device is arranged on the left side of the paint box. The rapid high-wall painting device has the advantages of high automation degree, high painting speed and simplicity in operation.

The invention relates to an outdoor building wall whitewashing robot based on a parallel mechanism. The robot comprises a fixed frame, six parallel branch chains are mounted on the fixed frame, and the upper ends of the six parallel branch chains are evenly mounted on an upper platform. Four lifting branch chains are symmetrically mounted on the upper end face of the upper platform. Each lifting branch chain comprises two mounting columns, wherein a first rotating shaft is mounted between the upper ends of the two mounting columns through bearings, a transmission pulley is mounted on the first rotating shaft through a key, a steel wire rope is attached to the inner wall of the transmission pulley in a sliding mode, and the top end of the steel wire rope is wound on a driving pulley. Each driving pulley is mounted on a second rotating shaft through a key, the two ends of each second rotating shaft are mounted on two lifting support plates through bearings correspondingly, and the lower ends of every two lifting support plates are welded to the upper platform. A lifting motor is mounted at the end, away from the corresponding mounting columns, of each second rotating shaft through a coupling. The outdoor building wall whitewashing robot has a stable-lifting automatic whitewashing function, and a new path of mechanical and automatic wall whitewashing is provided.

The invention relates to six-degree-of-freedom wall whitewashing equipment for a building. The six-degree-of-freedom wall whitewashing equipment comprises a fixed frame, on which six parallel branched chains are arranged. Upper ends of the six parallel branched chains are uniformly arranged on an upper platform. The middle of the upper end surface of the upper platform is provided with a whitewash manipulator through screws. The fixed frame comprises a lower platform. The upper end of the lower platform is symmetrically provided with four universal wheels, by which the six-degree-of-freedom wall whitewashing equipment can be moved at any will below the wall to be whitewashed. Operation is conducted easily. The middle of the upper end surface of the lower platform is provided with a driving shaft via a bearing. The middle of the driving shaft is equipped with a driving gear through a key. The driving gear is engaged with six driving branched chains along an axial direction. The driving branched chains comprise driving motors with bottoms installed on the lower platform via motor seats. The six-degree-of-freedom wall whitewashing equipment for the building can have the functions of stably elevating and automatically whitewashing. A new way for mechanically whitewashing wall surfaces in an automated manner is provided.

The invention discloses a novel wall painting device for construction machinery. The novel wall painting device structurally comprises a base, and the base further comprises a feeding barrel, fixing frames, a controller, support rods and telescopic rods; the feeding barrel is fixedly connected with the left side of the upper end of the base, and the feeding barrel is further provided with a hose,a control valve and a water pump; the fixing frames are fixedly connected with the both sides of the upper end of the base, and each fixing frame is provided with a sliding block, a connecting block,a steel wire, a rotating disk, a motor and a connecting rod; the support rods are fixedly connected with the both sides of the bottom of the base, and each support rod is provided with a universal wheel and a locking device; and the telescopic rods are fixedly connected with the bottom sides of the bottom middle of the base, and each telescopic rod is provided with a fixator and a collecting box.The novel wall painting device is provided with the sliding blocks, and the motor is cooperated with a roller brush; the roller brush can be used for painting a wall automatically up and down, and thepainting efficiency is high; the universal wheels are arranged, and facilitate movement of the painting device; the collecting box is arranged, and used for collecting falling paint liquid; and the waste of materials is reduced.

The invention discloses a painting roller and building painting equipment. The painting roller comprises a support, a round roller is arranged on the support, and a containing cavity is formed in theround roller. The painting roller is characterized in that a dispersing box is arranged in the containing cavity, at least one wall surface of the dispersing box is provided with a plurality of discharging holes, a dredging mechanism capable of dredging the discharging holes is arranged in the dispersing box, and at least one end of the support is provided with a telescopic flexible pipe communicating with the dispersing box. The painting roller and the building painting equipment aim to overcome the defects in the prior art, and the painting roller which is simple in structure, capable of evenly distributing painting materials, effectively preventing blocking of a discharging port and effectively improving the smashing efficiency and quality is provided. The another purpose of the invention is to provide the building painting equipment including the painting roller.

The invention relates to a paint brushing device, in particular to an arc-shaped plate paint brushing device for a building. The arc-shaped plate paint brushing device for the building is uniform in paint brushing, high in paint brushing and easy to operate. The arc-shaped plate paint brushing device for the building comprises a left frame, a bottom plate, a sliding rail, a slider I, iron blocks, an electromagnet, a slider II, springs I, a rotary motor, a connection rod I, a paint box, an electric wheel I, a pull wire, a cover, an electric wheel II, a connection rod II, a supporting rod I, a spring II, a steel wire rope, a supporting rod II, an electric push rod, a brush and a thumb cylinder. The left frame is arranged at the left end of the bottom plate, the electric wheel I is arranged on the upper portion of the right side of the left frame, and the pull wire is wound on the electric wheel I. The effects of uniform paint brushing, high paint brushing speed and easy operation are achieved, by means of the device, an arc-shaped plate can be efficiently brushed with paint, and work efficiency is improved.

The invention relates to a building wall whitewashing robot based on the negative pressure principle. The building wall whitewashing robot comprises a fixed frame, six parallel branch chains are mounted on the fixed frame, and the upper ends of the six parallel branch chains are evenly mounted on an upper platform. A sucking pump is mounted in the middle of the upper end face of the upper platform through screws. Three L-shaped support columns are evenly welded to the right side of the upper end face of the upper platform, a sucking support plate is welded to the tail ends of the three L-shaped support columns, and a first suction cup, a second suction cup and a third suction cup are mounted on the inner wall of the sucking support plate through screws. A sucking pipe is connected to a sucking opening of the sucking pump. Four sucking jacking columns are symmetrically welded to the upper end face of the upper platform, a lifting table is welded to the upper end faces of the four sucking jacking columns, and the four sucking jacking columns are used for evenly supporting the lifting table. A whitewashing manipulator is mounted at the upper end of the lifting table through screws. The building wall whitewashing robot has a stable-lifting automatic whitewashing function, and a new path of mechanical and automatic wall whitewashing is provided.

The invention relates to a self-stabilization lifting type building wall whitewashing robot. The self-stabilization lifting type building wall whitewashing robot comprises a lower platform. Four universal wheels are symmetrically arranged on the lower end face of the lower platform. Six parallel branch chains are evenly installed on the lower platform in the axis direction. The upper ends of the six parallel branch chains are evenly installed on an upper platform. Four lifting branch chains are symmetrically installed on the upper end face of the upper platform. Each lifting branch chain comprises two installation columns which are welded to the upper end face of the upper platform, wherein a first rotary shaft is installed between the upper ends of the two installation columns through a bearing, a transmission pulley is installed on the first rotary shaft through a key, a steel wire is slidably attached to the inner wall of the transmission pulley, the top end of the steel wire rope is wound on a driving pulley, the driving pulley is installed on a second rotary shaft through a key, the two ends of the second rotary shaft are installed on two lifting support plates through bearings correspondingly, and the lower ends of the two lifting support plates are welded to the upper platform. By the adoption of the self-stabilization lifting type building wall whitewashing robot, a stable lifting type automatic whitewashing function can be achieved, and a novel approach for mechanical automatic wall whitewashing is provided.

The invention relates to the technical field of painting, and discloses a wall painting device for building engineering construction, which comprises a holding rod and a brush head. Therefore, the left brush head and the right brush head form a mirror image or cannot form a mirror image, so that the left brush head, the right brush head and the middle brush head form a brush, the left brush head and the middle brush head form a brush, and the right brush head and the middle brush head form a brush. A threaded cylinder is rotated to drive a left connecting rod and a right connecting rod to move up and down, the included angle between a left brush head or a right brush head and a middle brush head is driven to be 90 degrees, so that corners of a wall can be painted at a time, and rotation of the brush in the horizontal direction and the vertical direction can be achieved through one mechanism of an adjusting structure; therefore, the use cost is saved.

The invention relates to a building wall face plastering robot which comprises a fixing rack. Six parallel connection branch chains are installed on the fixing rack. The upper ends of the six parallel connection branch chains are all installed on an upper platform. A sucking pump is installed at the middle portion of the upper end face of the upper platform through screws. Three L-shaped struts are evenly welded to the right side of the upper end face of the upper platform. A sucking supporting board is welded to the tail ends of the three L-shaped struts. A first suction cup, a second suction cup and a third suction cup are installed on the inner wall of the sucking supporting board through screws. The first suction cup is connected with the second suction cup through a first connecting air pipe. A sucking pipe is connected to a sucking opening of the sucking pump and communicates with the first connecting air pipe. Four sucking jacking columns are symmetrically welded to the upper end face of the upper platform. A lifting device is welded to the upper end faces of the four sucking jacking columns. A plastering mechanical hand is installed at the upper end of the lifting device through screws. By the adoption of the building wall face plastering robot, the stable lifting and automatic plastering function can be achieved, and a new way for mechanically and automatically plastering a wall face is provided.

The invention discloses a paint brushing device with a changeable curvature of a paddle adjusting belt type. Brush, motor, No. 1 swash plate, multi-axle wheel transmission device, No. 2 swash plate, paint roller, discharge rack, the present invention is a paddle-adjustable belt-type paint brushing equipment that can change the curvature when there are large parts When it is necessary to paint, directly adjust the second push-pull handle, so that the No. 2 buckle moves outward and the No. 1 buckle moves inward to tighten the connecting belt, and jump from the driven wheel to the multi-stage gear plate, so that the right end of the connecting belt is moved. The height is lowered, and it can be adapted to parts of various heights and sizes. It can be adjusted without stopping the device, which improves the overall painting speed. When painting the parts, the processing box will be sealed through the sealing groove cover first, and the air pump The air inside the equipment is extracted to reduce the entry of particulate matter, so that the surface of the painted parts is smoother.

The invention discloses a construction site trolley for building construction. The construction site trolley comprises a parking plate, a stand column and a vertical plate are arranged at the two ends of the upper surface of the parking plate correspondingly, a top plate is arranged at the upper end of the stand column and the upper end of the vertical plate, a plurality of first electric-hydraulic push rods are vertically installed on the top plate, and electromagnets are installed on push rod heads at the lower ends of the first electric-hydraulic push rods. The construction site trolley for building construction has the beneficial effects that the construction site trolley for building construction can be automatically painted and maintained, the trouble of manual painting is omitted, manpower and material resources are effectively saved, the painting speed is remarkably increased compared with manual painting, and practicability is good.

The invention relates to an intelligent lifting manipulator for building whitewashing. The intelligent lifting manipulator comprises an upper platform, and four lifting branch chains are symmetrically mounted on the upper end face of the upper platform. Each lifting branch chain comprises two mounting columns welded to the upper end face of the upper platform, wherein a first rotating shaft is mounted between the upper ends of the two mounting columns through bearings, a transmission pulley is mounted on the first rotating shaft through a key, a steel wire rope is attached to the inner wall of the transmission pulley in a sliding mode, and the top end of the steel wire rope is wound on a driving pulley. Each driving pulley is mounted on a second rotating shaft through a key, the two ends of each second rotating shaft are mounted on two lifting support plates through bearings correspondingly, and the lower ends of every two lifting support plates are welded to the upper platform. A lifting motor is mounted at the end, away from the corresponding mounting columns, of each second rotating shaft through a coupling, each lifting motor is fixedly mounted on a motor frame, and the motor frames are mounted on the upper platform. The bottom end of each steel wire rope is wound on a pull ring. The intelligent lifting manipulator has a stable-lifting automatic whitewashing function, and a new path of mechanical and automatic wall whitewashing is provided.

The invention relates to a whitewash robot for a building wall based on a negative pressure principle. The whitewash robot comprises a fixed frame, on which six parallel branched chains are arranged. Upper ends of the six parallel branched chains are uniformly arranged on an upper platform. The middle of the upper end surface of the upper platform is provided with an air extracting pump through screws. The right side of the upper end surface of the upper platform is uniformly welded with three L-shaped support columns, tail ends of which are welded with air extracting support boards. Inner walls of the air extracting support boards are respectively equipped with a first sucker, a second sucker and a third sucker through screws. An air extracting port of the air extracting pump is connected with an air extracting pipe. The upper end surface of the upper platform is symmetrically welded with four air extracting top columns. Upper end surfaces of the four air extracting top columns are welded with an elevating table. The four air extracting top columns have the effects of uniformly supporting the elevating table. The upper end of the elevating table is provided with a whitewashing manipulator. The whitewash robot for building wall capable of automatically pouring paints can have the functions of stably elevating and automatically whitewashing. A new way for mechanically whitewashing wall surfaces in an automated manner is provided.

The invention relates to an intelligent lifting manipulator for building whitewashing. The intelligent lifting manipulator comprises an upper platform, and four lifting branch chains are symmetrically mounted on the upper end face of the upper platform. Each lifting branch chain comprises two mounting columns welded to the upper end face of the upper platform, wherein a first rotating shaft is mounted between the upper ends of the two mounting columns through bearings, a transmission pulley is mounted on the first rotating shaft through a key, a steel wire rope is attached to the inner wall of the transmission pulley in a sliding mode, and the top end of the steel wire rope is wound on a driving pulley. Each driving pulley is mounted on a second rotating shaft through a key, the two ends of each second rotating shaft are mounted on two lifting support plates through bearings correspondingly, and the lower ends of every two lifting support plates are welded to the upper platform. A lifting motor is mounted at the end, away from the corresponding mounting columns, of each second rotating shaft through a coupling, each lifting motor is fixedly mounted on a motor frame, and the motor frames are mounted on the upper platform. The bottom end of each steel wire rope is wound on a pull ring. The intelligent lifting manipulator has a stable-lifting automatic whitewashing function, and a new path of mechanical and automatic wall whitewashing is provided.

The invention relates to a special manipulator for building indoor wall decoration. The special manipulator for building indoor wall decoration comprises an upper platform. An air pump is installed in the middle of the upper end face of the upper platform through screws. Three L-shaped supporting columns are evenly welded to the right side of the upper end face of the upper platform. An air suction supporting plate is welded to the tail ends of the three L-shaped supporting columns. A first suction cup, a second suction cup and a third suction cup are installed on the inner wall of the air suction supporting plate through screws. The first suction cup is connected with the second suction cup through a first connecting air pipe, and the second suction cup is connected with the third suction cup through a second connecting air pipe. An air suction opening of the air pump is connected with an air suction pipe which communicates with the first connecting air pipe. Four air suction jacking columns are symmetrically welded to the upper end face of the upper platform, a lifting platform is welded to the upper end faces of the four air suction jacking columns, and a whitewashing manipulator body is installed at the upper end of the lifting platform through screws. The special manipulator for building indoor wall decoration can achieve a stable automatic whitewashing function and provides a new way for mechanically and automatically whitewashing walls.

The invention relates to a willow basket painting method. The method specifically comprises the following steps that after a willow basket is woven, treating liquid is adopted for immersing and oil removal; secondly, paint immersing is conducted after baking, and centrifugal spin-dry is conducted; and thirdly, natural air drying and grinding are conducted. Through the experiment, the willow basket is painted through the method, the thickness of an obtained paint film is below 72 microns, and while the willow basket is painted through an existing method, the thickness of the paint film reaches up to 135 microns; and visibly, by usage of the method, the paint usage amount can be greatly reduced, the paint drying time is reduced, the enterprise cost is greatly reduced, and the method is worthy of being greatly popularized.

The invention relates to an automatic coating-pouring-type whitewashing robot used for indoor building wall decoration. The automatic coating-pouring-type whitewashing robot comprises a lower platform, the lower end surface of which is provided with four universal wheels symmetrically. By means of the four universal wheels, the automatic coating-pouring-type whitewashing robot can move at will to below a to-be-whitewashed wall surface. The lower platform is uniformly provided with six parallel branched chains. Upper ends of the six parallel branched chains are uniformly installed on an upper platform. The middle part of the upper end surface of the upper platform is equipped with an air extracting pump through screws. The right side of the upper end surface of the upper platform is uniformly welded with three L-shaped support columns, tail ends of which are welded with air extracting support boards. Inner walls of the air extracting support boards are respectively equipped with a first sucker, a second sucker and a third sucker through screws. The upper end surface of the upper platform is symmetrically welded with four air extracting top columns. The upper end surfaces of the four air extracting top columns are welded with an elevating table, the upper end of which is equipped with a whitewashing manipulator through screws. The intelligent whitewashing robot used for the indoor building wall decoration has functions of stably elevating and automatically whitewashing. A new way for mechanically and automatically whitewashing wall surfaces is provided.

The invention relates to six-degree-of-freedom wall whitewashing equipment for a building. The six-degree-of-freedom wall whitewashing equipment comprises a fixed frame, on which six parallel branched chains are arranged. Upper ends of the six parallel branched chains are uniformly arranged on an upper platform. The middle of the upper end surface of the upper platform is provided with a whitewash manipulator through screws. The fixed frame comprises a lower platform. The upper end of the lower platform is symmetrically provided with four universal wheels, by which the six-degree-of-freedom wall whitewashing equipment can be moved at any will below the wall to be whitewashed. Operation is conducted easily. The middle of the upper end surface of the lower platform is provided with a driving shaft via a bearing. The middle of the driving shaft is equipped with a driving gear through a key. The driving gear is engaged with six driving branched chains along an axial direction. The driving branched chains comprise driving motors with bottoms installed on the lower platform via motor seats. The six-degree-of-freedom wall whitewashing equipment for the building can have the functions of stably elevating and automatically whitewashing. A new way for mechanically whitewashing wall surfaces in an automated manner is provided.

The invention discloses a maintenance device of a building site handcart for building construction. The maintenance device comprises a parking plate, wherein the two ends of the upper surface of the parking plate are provided with a stand column and a stand plate correspondingly, and a top plate is arranged at the upper end of the stand column and the upper end of the stand plate; and a pluralityof first electro-hydraulic push rods are vertically installed on the top plate, and electromagnets are arranged on push rod heads at the lower ends of the plurality of first electro-hydraulic push rods. The maintenance device of the building site handcart for the building construction has the beneficial effects that painting maintenance can be automatically carried out on the building site handcart, so that the trouble of manual painting is omitted, manpower and material resources are effectively saved, the painting speed is obviously improved compared with that of manual painting, and the practicability is good.

The invention relates to a painting device, in particular to a natural gas pipeline cleaning and quickly painting device. The natural gas pipeline cleaning and quickly painting device comprises a base, a sliding rod, a supporting rod, a first motor, a winding wheel, a rope, a sliding sleeve, a circular brush and the like; the supporting rod is mounted on the upper left portion of the base, and a placement plate is mounted on the middle upper portion of a base plate; the sliding rod is mounted on the upper right portion of the base plate, and the left portion of the supporting rod is sequentially provided with a second motor and a first cylinder body from top to bottom; and a cam is mounted on the second motor. According to the natural gas pipeline cleaning and quickly painting device, theeffects that the painting speed is high, the painting efficiency is high, the manual labor force is greatly saved are achieved, by using the device, the laying schedule of national natural gas pipelines can be accelerated, painting is even, the service life of the natural gas pipelines can be prolonged to the greatest extent, the maintenance interval is prolonged, and part of maintenance funds issaved.