CN-117365062-B - Building outer wall spraying device and method thereof

CN117365062BCN 117365062 BCN117365062 BCN 117365062BCN-117365062-B

Abstract

The invention discloses a spraying device and a spraying method for an outer wall of a building, wherein the spraying device comprises a suspension frame suspended on the outer side of the wall body, the suspension frame comprises a bottom plate and side plates, a reciprocating screw rod is rotatably connected between the side plates, a threaded sleeve is arranged on the reciprocating screw rod, a mounting plate is fixedly connected to the threaded sleeve, a coating nozzle is arranged on the mounting plate, an air suction channel is arranged on the bottom plate, an exhaust fan is arranged in the air suction channel and is used for sucking an inner cavity of one side of the air suction channel close to the surface of the wall body into negative pressure so that the end part of the air suction channel is attached to the surface of the wall body. The invention sucks the air suction duct into negative pressure through the exhaust fan, so that the air pressure adsorbs the spraying device on the surface of the wall body, thereby keeping the stability of the whole spraying device, and the reciprocating screw is rotated to drive the paint nozzle to move back and forth along the reciprocating screw to spray the surface of the wall body, thereby improving the spraying effect.

Inventors

ZHAO MENGQIANG
CHEN NAN
SUN JIAXIANG

Assignees

中国建筑第二工程局有限公司

Dates

Publication Date: 20260508
Application Date: 20231107

Claims (7)

1. The spraying device for the building outer wall is characterized by comprising a suspension frame which is suspended outside a wall body, wherein the suspension frame comprises a bottom plate and side plates which are fixed on two sides of the bottom plate, a reciprocating screw rod is rotatably connected between the side plates, a driving motor is fixedly arranged outside one side of the side plates, an output shaft of the driving motor is in transmission connection with the reciprocating screw rod so as to drive the reciprocating screw rod to rotate, a threaded sleeve which moves back and forth along the reciprocating screw rod is arranged on the reciprocating screw rod, a mounting plate is fixedly connected onto the threaded sleeve, a coating nozzle which faces the surface of the wall body is arranged on the mounting plate, a guide rod is fixedly connected between the side plates on two sides, the guide rod is arranged in parallel with the reciprocating screw rod, the bottom of the mounting plate is fixedly connected with the guide rod, the guide rod is slidably connected onto the guide rod so as to axially slide along the guide rod, an air suction duct is arranged on the bottom plate, the air suction duct is positioned below the coating nozzle, the air suction end of the air suction duct faces the surface of the wall body, and an exhaust fan is arranged in the air suction duct and is used for sucking the inner cavity close to the surface of the wall body so as to make the end part of the air suction duct attach to the surface of the wall body; The air suction duct comprises an air suction opening section, a first straight cylinder section, a filtering section and a second straight cylinder section which are connected in sequence, and the horizontal direction of the air suction opening section is in a horn shape; the filter section is internally provided with a filter screen which is of a frustum structure, the second straight barrel section is arranged on one side, far away from the first straight barrel section, of the filter section, an exhaust fan is arranged in the second straight barrel section, the exhaust fan comprises an air suction motor arranged in the second straight barrel section, an output shaft circumference of the air suction motor is fixedly connected with an air suction fan blade, and the air suction motor drives the air suction fan blade to rotate so that air close to one end of the air suction air channel and far away from the wall body can be drawn out; The inner wall of the air suction opening section is rotationally connected with a first rotating shaft which is horizontally arranged, a polishing cylinder is fixedly connected to the first rotating shaft, the polishing cylinder is abutted to the surface of a wall body to polish the surface of the wall body, an output shaft of an air suction motor is fixedly connected with a second rotating shaft, the end part of the second rotating shaft extends to one side of the first rotating shaft and is fixedly connected with a worm, a turbine is fixedly connected to the first rotating shaft, the worm is meshed with the turbine to form turbine worm transmission, and the air suction motor drives an air suction fan blade to rotate to pump air and simultaneously drives the second rotating shaft to rotate to drive the polishing cylinder to polish the surface of the wall body; one side of the guide rod is fixedly connected with a rack, the mounting plate is rotatably connected with a third rotating shaft, the third rotating shaft is vertically arranged, the lower end of the third rotating shaft penetrates through the mounting plate and is fixedly connected with a first gear, and the first gear and the rack are meshed through the gear to form gear-rack transmission; the upper end fixedly connected with carousel of third rotation axis, eccentric position fixedly connected with drive shaft on the carousel, it is connected with the mount pad to rotate on the mounting panel, coating nozzle fixedly connected with is on the mount pad, the bottom fixedly connected with drive block of mount pad, be provided with the drive slot on the drive block, the drive slot is rectangular shape, the drive shaft alternates in the drive slot in order to drive the drive block swing.
2. The device for spraying the outer wall of the building according to claim 1, wherein bristles are fixedly connected to the end face circumference of the air suction opening section, and the end parts of the bristles are abutted to the surface of the wall body.
3. The building outer wall spraying device according to claim 2, wherein sliding grooves are formed in the inner walls of the two sides of the air suction opening section, sliding blocks are connected in the sliding grooves in a sliding mode, two ends of the first rotating shaft are rotatably connected to the sliding blocks, a compression spring is arranged on one side, away from the wall, of the sliding blocks, one end of the compression spring is abutted to the sliding blocks, and the other end of the compression spring is abutted to the end portions of the sliding grooves.
4. The device for spraying the outer wall of the building according to claim 1, wherein a storage tank for storing paint is fixedly connected to the middle part of the lower part of the bottom plate, a paint pump is arranged on the storage tank, and a discharge hole of the paint pump is connected with a paint nozzle through a pipeline to pump the paint into the paint nozzle for spraying.
5. The building outer wall spraying device according to claim 1, wherein the upper end of the air suction opening section is provided with a receiving box, the receiving box is located below the spray nozzle, the bottom of the receiving box is connected with the storage box through a pipeline, the receiving box is used for collecting paint overflowed from the paint spray nozzle, the receiving box is hinged with a receiving plate, the receiving plate is obliquely arranged, one side, far away from the receiving box, of the receiving plate is attached to the surface of a wall body, the bottom of the receiving plate is provided with a first extension spring, one end of the first extension spring is fixedly connected to the receiving plate, and the other end of the first extension spring is fixedly connected to the upper surface of the air suction opening section.
6. The device for spraying the outer wall of the building according to claim 1, wherein a fixing plate is fixedly connected to one side, close to the wall, of the suspension frame, and rollers are rotatably connected to the fixing plate.
7. A spraying method of a building outer wall spraying device, which is applied to the building outer wall spraying device as claimed in claim 4, and is characterized by comprising the following method steps: 1. The spraying device is suspended outside the wall body through a hanging rope; 2. starting an exhaust fan, and generating negative pressure in an air suction duct to enable the spraying device to be kept attached to the surface of the wall; 3. Starting a paint pump to convey paint, and spraying the paint on the surface of the wall body through a paint nozzle; 4. The driving motor drives the reciprocating screw rod to rotate to drive the paint nozzle to reciprocate to spray the surface of the wall body back and forth, and the spraying device moves from top to bottom by downwards releasing the rope through the lifting rope, so that the paint is sprayed on the surface of the wall body from top to bottom.

Description

Building outer wall spraying device and method thereof Technical Field The invention relates to the technical field of building engineering, in particular to a spraying device and a spraying method for an outer wall of a building. Background The construction method is characterized in that the construction method comprises the steps of spraying a layer of coating on the surface of an outer wall, and preventing rainwater, dew and water vapor in air from penetrating into a building structure through the coating, so that the effect of waterproofing and dampproofing is achieved, the color and luster and the attractiveness of the outer wall of a building are improved, rich colors and various patterns are provided, the appearance of the building is decorated, the attractiveness of the building is enhanced, the service life of the building is prolonged, and the maintenance cost is reduced. In the outer wall spraying construction, the existing mode is that through hanging the hanging basket, an operator carries out manual spraying on a wall body in the hanging basket, and the mode is low in efficiency. In order to improve the efficiency of construction, automatic spraying device has appeared among the prior art, carries out automatic spraying to the outer wall through automatic spraying device, reduces intensity of labour, raises the efficiency. The automatic spraying mechanism for the coating of the building outer wall comprises an L-shaped platform, wherein 4 steering wheels are arranged at the bottom of the platform and can facilitate the random movement of the platform, two suckers are arranged at the front of the platform and are used for being adsorbed on a wall body during working, a guide rail is arranged at the upper part of the platform and is used for driving a multi-joint mechanical arm by a sliding table to move left and right together with a coating bin integrated with a counterweight, a spray head is arranged at the tail end of the multi-joint mechanical arm, a visual sensor is arranged at the top of the spray head and can automatically sense whether the front part is the wall body after the spray head is opened, a pipeline opening is arranged above the spray head and is used for connecting a pipeline with the coating bin, two motors at the rear of the platform are connected with a speed reducer and are used for driving a coaxial winch to work, the platform is connected with a crane through a cable, the 4 steering wheels are arranged at the bottom of the crane and can facilitate the random movement of the crane, and an unbalanced locking device is arranged at the top of the crane, so that the effective spraying operation can be performed on the building outer wall. In view of the defects similar to the prior art, the spraying device cannot effectively maintain the spraying distance, and shakes in the moving process, so that the spraying cannot be kept uniform, and uncontrollable risks are brought to the spraying stability. Disclosure of Invention The invention aims to solve the technical problems and provides a spraying device and a spraying method for an outer wall of a building. In order to achieve the above purpose, the invention is realized by adopting the following technical scheme: A spraying device for an outer wall of a building comprises a hanging frame hung on the outer side of the wall body, wherein the hanging frame comprises a bottom plate and side plates fixed on the two sides of the bottom plate, a reciprocating screw is rotatably connected between the side plates, a driving motor is fixedly installed outside one side of the side plates, an output shaft of the driving motor is in transmission connection with the reciprocating screw to drive the reciprocating screw to rotate, a threaded sleeve capable of moving back and forth along the reciprocating screw is arranged on the reciprocating screw, a mounting plate is fixedly connected onto the threaded sleeve, a coating nozzle facing the surface of the wall body is arranged on the mounting plate, a guide rod is fixedly connected between the side plates on the two sides, the guide rod is arranged in parallel with the reciprocating screw, the bottom of the mounting plate is fixedly connected with a guide block, the guide rod is slidably connected onto the guide rod to slide along the axial direction of the guide rod, an air suction duct is installed on the bottom plate and located below the coating nozzle, the air suction end of the air suction duct faces the surface of the wall body, and an exhaust fan is arranged in the air suction duct and is used for sucking an inner cavity on one side close to the surface of the wall body to the surface to negative pressure so that the end of the air suction duct is attached to the surface of the wall body. Further, the air suction duct comprises an air suction opening section, a first straight barrel section, a filtering section and a second straight barrel section which are sequentially connected, the