A gasless spraying device capable of being mounted on a negative pressure wall-climbing robot

By equipping a negative pressure wall-climbing robot with an airless spraying device and using a push rod motor to adjust the nozzle angle, longitudinal and lateral spraying can be achieved, solving the safety risks and cost issues of high-altitude spraying operations and improving construction efficiency and quality.

CN224549567UActive Publication Date: 2026-07-24BEIJING ZHONGDI TRANSPORTATION SCI ADVANCED MATERIAL TECH RES CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING ZHONGDI TRANSPORTATION SCI ADVANCED MATERIAL TECH RES CO LTD
Filing Date
2025-08-26
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

High-altitude airless spraying operations pose safety risks, have high construction costs, and produce inconsistent work quality, which are difficult to effectively address with existing technologies.

Method used

Design an airless spraying device that can be mounted on a negative pressure wall-climbing robot. Through the mounting frame and spraying components, the nozzle angle is adjusted by a push rod motor to achieve longitudinal and lateral spraying. Combined with the movement of the negative pressure wall-climbing robot, the wall spraying task is completed.

Benefits of technology

It enables efficient and safe high-altitude spraying operations, reduces construction costs and time, and improves the stability and flexibility of spraying quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of airless spraying devices that can be carried on negative pressure wall-climbing robot, it is related to spraying technical field, including mounting bracket;Spraying assembly, the spraying assembly includes paint baffle, the paint baffle is fixedly connected with the side of mounting bracket by bolt, the top of mounting bracket is fixedly connected with connecting frame, the side fixedly connected with the extending frame of L shape of connecting frame, the fixedly connected with inclined strut of the included angle of extending frame, the top side fixedly connected with fixed sleeve of extending frame, the side surface fixedly connected with the limiting baffle for limiting of fixed sleeve. The airless spraying device that can be carried on negative pressure wall-climbing robot, spraying assembly is assembled on negative pressure wall-climbing robot by mounting bracket, used to replace manual work to carry out aerial work, so that it can complete the case of wall painting task, ensure the safety of personnel, and without the wearing and setting of protection, lifting and other auxiliary facilities, so that work efficiency and construction cost are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of spraying technology, specifically to an airless spraying device that can be mounted on a negative pressure wall-climbing robot. Background Technology

[0002] Negative pressure wall-climbing robots are special robots that use the principle of negative pressure adsorption to move on vertical or inclined surfaces. They use a vacuum pump to quickly extract air from the sealed cavity, creating a pressure difference between the inside and outside, which generates an equivalent adsorption force. Flexible sealing gaskets are used to adapt to different surface roughness, and they have strong compatibility with materials such as glass, concrete, and metal.

[0003] High-altitude airless spraying operations are mainly carried out manually. High-altitude operations pose safety risks to construction workers and require safety measures such as lifting platforms, which take up time and extend the construction period. High-altitude operations require a lot of auxiliary measures, which often increases the cost of work. The time spent setting up auxiliary measures also leads to a further increase in testing costs. During construction, the quality of work often varies due to differences in workers' skill levels and other factors. To address this, we propose an airless spraying device that can be mounted on a negative pressure wall-climbing robot. Utility Model Content

[0004] The purpose of this invention is to provide an airless spraying device that can be mounted on a negative pressure wall-climbing robot to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an airless spraying device that can be mounted on a negative pressure wall-climbing robot, including a mounting frame; A spraying assembly includes a paint baffle, one side of which is fixedly connected to one side of a mounting frame by bolts. A connecting frame is fixedly connected to the top of the mounting frame. An L-shaped extension frame is fixedly connected to one side of the connecting frame. A diagonal brace is fixedly connected to the included angle of the extension frame. A fixing sleeve is fixedly connected to the top side of the extension frame. A limiting baffle for limiting the position is fixedly connected to the side surface of the fixing sleeve. A spray gun for spraying is fitted inside the fixing sleeve. A rotating sleeve is rotatably connected to the bottom of the spray gun via a bearing. A duckbill-shaped nozzle is fixedly connected to the bottom outer edge of the rotating sleeve.

[0006] Preferably, the top of the spraying assembly is provided with a connecting assembly, the connecting assembly includes an adjusting frame, the bottom of the adjusting frame is fixedly connected to the top of the connecting frame, and an arc groove for angle adjustment is provided on one side of the adjusting frame.

[0007] Preferably, a cantilever assembly is provided on one side of the connecting assembly. The cantilever assembly includes an extension arm, and adjusting members are fixedly sleeved at both ends of the extension arm. The adjusting members have pin holes with the arc groove as the center inside, and the adjusting members have movable grooves corresponding to the arc groove trajectory inside.

[0008] Preferably, an angle adjustment component is provided on one side of the diagonal brace. The angle adjustment component includes a fixed column, one end of which passes through the diagonal brace and is fixedly connected. A connecting sleeve is fixedly connected to the other end of the fixed column. A push rod motor is fixedly sleeved on the inner wall of the connecting sleeve. A rack is fixedly connected to the output end of the push rod motor. A toothed ring is connected to one side of the rack through meshing transmission, and the toothed ring is fixedly sleeved on the side surface of the rotating sleeve.

[0009] Preferably, a pin is movably sleeved in the pin hole, causing the movable groove on the other side of the adjusting member to move along the arc groove trajectory and change its angle.

[0010] Preferably, a bolt is movably sleeved in the movable groove, and one end of the bolt passes through the adjusting frame and the movable groove in sequence and is fastened by a nut.

[0011] Preferably, there are two adjusting components and two adjusting frames, one of which has an auxiliary observation camera fixedly connected to its bottom, which is away from the connecting frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this airless spraying device can be mounted on a negative pressure wall-climbing robot. The spraying components are mounted on the negative pressure wall-climbing robot using a mounting frame to replace manual labor for high-altitude operations. This allows the wall spraying task to be completed while ensuring the safety of personnel, and eliminates the need for protective equipment, lifting and other auxiliary facilities, thus reducing work efficiency and construction costs. The nozzle rotates by extending and retracting the output end of the push rod motor, thereby changing the spraying angle. When the negative pressure wall-climbing robot moves longitudinally, the nozzle is also adjusted to the longitudinal direction, so that the width of the spray is also longitudinal. The wall is thickly coated while the movement speed of the negative pressure wall-climbing robot remains constant. When the nozzle rotates 90 degrees, the spraying width becomes horizontal, which increases the spraying range and allows for thin coating. This allows the thickness of the coating to be adjusted by rotating the nozzle according to the paint and construction requirements, thereby improving the flexibility of use. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a schematic diagram of the connecting component and cantilever component of this utility model; Figure 4 This is a schematic diagram of the spraying component and angle adjustment component of this utility model.

[0014] In the diagram: 1. Mounting bracket; 2. Spraying assembly; 3. Connecting assembly; 4. Cantilever assembly; 5. Auxiliary observation camera; 6. Angle adjustment assembly; 201. Paint baffle; 202. Connecting bracket; 203. Extension bracket; 204. Diagonal brace; 205. Fixing sleeve; 206. Limiting baffle; 207. Spray gun; 208. Rotating sleeve; 209. Nozzle; 301. Adjusting bracket; 302. Arc groove; 401. Extension arm; 402. Adjusting component; 403. Pin hole; 404. Movable groove; 601. Fixing column; 602. Connecting sleeve; 603. Rack; 604. Gear ring; 605. Push rod motor. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This utility model embodiment provides an airless spraying device that can be mounted on a negative pressure wall-climbing robot, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes mounting bracket 1; The spraying assembly 2 includes a paint baffle 201. One side of the paint baffle 201 is fixedly connected to one side of the mounting frame 1 by bolts. A connecting frame 202 is fixedly connected to the top of the mounting frame 1. An L-shaped extension frame 203 is fixedly connected to one side of the connecting frame 202. A diagonal brace 204 is fixedly connected to the included angle of the extension frame 203. A fixing sleeve 205 is fixedly connected to the top side of the extension frame 203. A limiting baffle 206 for limiting is fixedly connected to the side surface of the fixing sleeve 205. A spray gun 207 for spraying is fitted inside the fixing sleeve 205. A rotating sleeve 208 is rotatably connected to the bottom of the spray gun 207 via a bearing. A duckbill-shaped nozzle 209 is fixedly connected to the outer edge of the bottom of the rotating sleeve 208. In use, the device is assembled onto the negative pressure wall-climbing robot via the mounting frame 1. The spray gun 207 is connected to the flexible conduit, and the other end of the conduit is connected to the output end of the spraying machine. Paint is added, and then the negative pressure wall-climbing robot is turned on and placed... The negative pressure wall-climbing robot is placed on the wall to be sprayed. Personnel control it via a wired terminal. When the robot reaches the spraying position, the sprayer is activated, allowing paint to be delivered through a conduit and sprayed out through nozzles 209 on the spray gun 207. Because nozzles 209 are duckbill-shaped, the paint is sprayed onto the wall in a fan-shaped radial pattern. When the spraying width needs to be changed, the push rod motor 605 is activated. When the push rod motor 605 retracts to its limit, the rack 603 drives the gear ring 604, causing nozzles 209 to rotate 90 degrees, thus changing the spraying width angle. When the push rod motor 605 extends to its limit, nozzles 209 reverse 90 degrees. The spraying assembly 2 is then mounted on the negative pressure wall-climbing robot via the mounting bracket 1. This system replaces manual high-altitude operations, ensuring personnel safety while completing wall spraying tasks. It eliminates the need for protective gear, lifting equipment, and other auxiliary facilities, thus reducing work efficiency and construction costs.

[0017] In embodiments of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a connecting component 3 is provided on the top of the spraying component 2. The connecting component 3 includes an adjusting frame 301. The bottom of the adjusting frame 301 is fixedly connected to the top of the connecting frame 202. An arc groove 302 for angle adjustment is provided on one side of the adjusting frame 301.

[0018] In embodiments of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a cantilever assembly 4 is provided on one side of the connecting component 3. The cantilever assembly 4 includes an extension arm 401. Adjusting members 402 are fixedly sleeved at both ends of the extension arm 401. The interior of the adjusting member 402 has a pin hole 403 with the arc groove 302 as the center. The interior of the adjusting member 402 has an active groove 404 corresponding to the trajectory of the arc groove 302.

[0019] In embodiments of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an angle adjustment component 6 is provided on one side of the diagonal brace 204. The angle adjustment component 6 includes a fixed column 601. One end of the fixed column 601 passes through the diagonal brace 204 and is fixedly connected. The other end of the fixed column 601 is fixedly connected to a connecting sleeve 602. A push rod motor 605 is fixedly sleeved on the inner wall of the connecting sleeve 602. A rack 603 is fixedly connected to the output end of the push rod motor 605. A gear ring 604 is connected to one side of the rack 603 through meshing transmission. The gear ring 604 is fixedly sleeved on the side surface of the rotating sleeve 208. The push rod motor... The extension and retraction of the output end of 605 causes the nozzle 209 to rotate, thereby changing the spraying angle. When the negative pressure wall-climbing robot moves longitudinally, the nozzle 209 is also adjusted to the longitudinal direction, so that the width is also sprayed longitudinally. Thick coating is applied to the wall while the movement speed of the negative pressure wall-climbing robot remains unchanged. When the nozzle 209 rotates 90 degrees, the spraying width becomes horizontal, which increases the spraying range and allows for thin coating. This allows the thickness of the coating to be adjusted by rotating the nozzle 209 according to the paint and construction requirements, thereby improving the flexibility of use.

[0020] In embodiments of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a pin is movably sleeved in the pin hole 403, causing the movable groove 404 on the other side of the adjusting member 402 to move along the trajectory of the arc groove 302 and change its angle.

[0021] In embodiments of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a bolt is movably sleeved in the movable groove 404, and one end of the bolt passes through the adjusting frame 301 and the movable groove 404 in sequence and is fastened by a nut.

[0022] In embodiments of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, there are two adjustment components 402 and two adjustment brackets 301. One of the adjustment brackets 301, which is far away from the connecting bracket 202, has an auxiliary observation camera 5 fixedly connected to its bottom.

[0023] Working principle: In use, the device is mounted on the negative pressure wall-climbing robot via the mounting bracket 1. The spray gun 207 is connected through a flexible conduit, and the other end of the conduit is connected to the output end of the spraying machine. Paint is added, and then the negative pressure wall-climbing robot is turned on and placed on the wall to be sprayed. The operator moves the negative pressure wall-climbing robot through a wired control terminal. When the negative pressure wall-climbing robot moves to the spraying position, the spraying machine is started, which delivers paint through the conduit and sprays it out through the nozzle 209 on the spray gun 207. Since the nozzle 209 is duckbill-shaped, the paint is sprayed on the wall in a fan-shaped radial pattern. When it is necessary to change the width of the spray, the push rod motor 605 is started. When the push rod motor 605 retracts to its limit, the rack 603 drives the gear ring 604, causing the nozzle 209 to rotate 90 degrees, thus changing the width angle of the spray. When the push rod motor 605 extends to its limit, the nozzle 209 reverses 90 degrees.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An airless spraying device that can be mounted on a negative pressure wall-climbing robot, characterized in that, Including mounting bracket (1); The spraying assembly (2) includes a paint baffle (201), one side of which is fixedly connected to one side of the mounting bracket (1) by bolts. A connecting bracket (202) is fixedly connected to the top of the mounting bracket (1). An L-shaped extension bracket (203) is fixedly connected to one side of the connecting bracket (202). A diagonal brace (204) is fixedly connected to the included angle of the extension bracket (203). A fixing sleeve (205) is fixedly connected to one side of the top of the extension bracket (203). A limiting baffle (206) for limiting is fixedly connected to the side surface of the fixing sleeve (205). A spray gun (207) for spraying is sleeved inside the fixing sleeve (205). A rotating sleeve (208) is rotatably connected to the bottom of the spray gun (207) through a bearing. A duckbill-shaped nozzle (209) is fixedly connected to the bottom outer edge of the rotating sleeve (208).

2. The airless spraying device that can be mounted on a negative pressure wall-climbing robot according to claim 1, characterized in that: The top of the spraying assembly (2) is provided with a connecting assembly (3), which includes an adjusting frame (301). The bottom of the adjusting frame (301) is fixedly connected to the top of the connecting frame (202), and an arc groove (302) for angle adjustment is provided on one side of the adjusting frame (301).

3. The airless spraying device that can be mounted on a negative pressure wall-climbing robot according to claim 2, characterized in that: A cantilever assembly (4) is provided on one side of the connecting assembly (3). The cantilever assembly (4) includes an extension arm (401). Adjusting members (402) are fixedly sleeved at both ends of the extension arm (401). The adjusting member (402) has a pin hole (403) with the arc groove (302) as the center. The adjusting member (402) has a movable groove (404) corresponding to the trajectory of the arc groove (302) inside.

4. The airless spraying device that can be mounted on a negative pressure wall-climbing robot according to claim 1, characterized in that: An angle adjustment component (6) is provided on one side of the diagonal brace (204). The angle adjustment component (6) includes a fixed column (601). One end of the fixed column (601) passes through the diagonal brace (204) and is fixedly connected. The other end of the fixed column (601) is fixedly connected to a connecting sleeve (602). A push rod motor (605) is fixedly sleeved on the inner wall of the connecting sleeve (602). A rack (603) is fixedly connected to the output end of the push rod motor (605). A toothed ring (604) is connected to one side of the rack (603) through meshing transmission, and the toothed ring (604) is fixedly sleeved on the side surface of the rotating sleeve (208).

5. The airless spraying device that can be mounted on a negative pressure wall-climbing robot according to claim 3, characterized in that: A pin is movably sleeved in the pin hole (403), causing the movable groove (404) on the other side of the adjusting member (402) to move along the trajectory of the arc groove (302) and change the angle.

6. The airless spraying device that can be mounted on a negative pressure wall-climbing robot according to claim 3, characterized in that: A bolt is movably sleeved in the movable groove (404), and one end of the bolt passes through the adjusting frame (301) and the movable groove (404) in sequence and is fastened by a nut.

7. The airless spraying device that can be mounted on a negative pressure wall-climbing robot according to claim 3, characterized in that: There are two adjustment components (402) and two adjustment frames (301), one of which is far from the connecting frame (202) and has an auxiliary observation camera (5) fixedly connected to its bottom.