Multipurpose spraying swing arm for robot
By designing the swing arm assembly as a combination of straight and curved arms, along with a groove and clearance structure, the problems of lightweighting and pipeline storage in the swing arm of the painting robot were solved, achieving rapid response and preventing entanglement, thus improving painting efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-03
AI Technical Summary
Existing painting robot arms suffer from insufficient lightweight design, resulting in slow response time when the load is large, inconvenient cable retraction, and easy pulling and tangling.
Design a multi-purpose spraying swing arm, which adopts a swing arm assembly consisting of a straight arm and a curved arm. The straight arm has a wire groove, and the curved arm has a clearance port. The pipeline and electrical control lines are laid in the wire groove, allowing sliding and bending during rotation. The blocking clamps prevent entanglement, and the spray head mounting base is equipped with a protective cover to prevent aerosol splashing.
It achieves increased pipeline accommodation space without affecting strength, preventing pulling and tangling. The lightweight design improves response speed, and the nozzle mount has a shorter response time, thus improving spraying efficiency.
Smart Images
Figure CN223960293U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cleaning robots, and specifically relates to a multi-purpose spraying arm for robots. Background Technology
[0002] The swing arm is a key component of a crawling cleaning robot. To enhance the robot's functionality, a spraying device is often added to the end of the swing arm. However, this increases the overall weight of the swing arm and the number of pipes. When the swing arm rotates, the response is slower, and the pipes are prone to being pulled and tangled. Therefore, it is urgent to solve the technical problems of lightweight design of the robot swing arm and pipe storage and prevention of pulling during the design process.
[0003] Patent document with application number "CN2023225683011" discloses a railway steel bridge painting robot, including a device body; a rotating shaft is provided at the top of the device body, and a swing arm is provided on one side of the rotating shaft, with a paint spray nozzle connected to one end of the swing arm; two universal wheels and two magnetic wheels are provided at the bottom of the device body, with the two universal wheels located at one end of the bottom of the device body and the two magnetic wheels located at the other end of the bottom of the device body; magnetic yokes are symmetrically arranged on both sides of the bottom of the device body; the painting robot can be adsorbed onto the surface of the bridge steel structure by the cooperation of the magnetic wheels and magnetic yokes, and the universal wheels enable the painting robot to flexibly turn, giving the painting robot strong adsorption force and movement ability, preventing the painting robot from falling off, and carrying the paint spray nozzle to perform painting operations on the target. However, the swing arm in this comparative document is a solid structure and the arm body is relatively thin, so it cannot bear a large load. If the load is to be increased, the thickness of the swing arm must be increased, which will reduce the response time during rotation. Moreover, relying on only one strap to fix the pipeline is not only easy for the pipeline to get tangled, but also makes it unable to move. When rotating, it is easy to cause the pipeline to be pulled.
[0004] The above background information is provided only to assist in understanding the utility model concept and technical solution of this utility model, and it does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content
[0005] The purpose of this utility model is to provide a multi-purpose spraying arm for robots, thereby overcoming the shortcomings of existing spraying robot arms that do not achieve lightweight design, have slow response time when the load is large, and are inconvenient to retract and store pipelines, which can easily cause pulling and tangling.
[0006] To achieve the above objectives, this utility model provides a multi-purpose spraying arm for robots, including a rotating arm assembly. One end of the rotating arm assembly is provided with a rotating connection part, and the other end of the rotating arm assembly is provided with a nozzle mounting seat. The rotating arm assembly includes a straight arm and a curved arm. A groove is formed at the top of the straight arm, and the two ends of the groove pass through the two ends of the straight arm. The rotating connection part is located at one end of the straight arm. One end of the curved arm is detachably fixedly connected to the other end of the straight arm, and the other end of the curved arm is bent downward and fixedly connected to the nozzle mounting seat. A clearance opening is formed on the curved arm. A cleaning nozzle and a spraying nozzle are mounted on the nozzle mounting seat. The cleaning nozzle is connected to a cleaning pipe, and the spraying nozzle is connected to a spraying pipe. The cleaning pipe and the spraying pipe are evenly distributed in the groove and can slide along the groove. The middle part of the cleaning pipe and the spraying pipe can be bent into the clearance opening.
[0007] Preferably, in the above technical solution, the wire groove is provided with a plurality of wire clips, the wire clips are spaced apart along the length direction of the wire groove, and the cleaning pipeline and the spraying pipeline are located between the wire clips and the wire groove.
[0008] Preferably, in the above technical solution, two first bending plates are symmetrically arranged at one end of the straight arm. One end of the first bending plate is connected to the side wall of the wire groove, and the other end of the first bending plate is bent toward the side of the straight arm in an arc shape.
[0009] Preferably, in the above technical solution, the other end of the straight arm is provided with a second curved plate, one end of the second curved plate is connected to the bottom of the groove, and the other end of the second curved plate is bent into the relief opening in an arc shape.
[0010] Preferably, in the above technical solution, the crank arm is provided with a blocking clamp, which spans across the clearance opening and can block the cleaning pipeline and the spraying pipeline.
[0011] Preferably, in the above technical solution, the curved arm includes a side plate, a connecting plate, and a reinforcing plate. There are two side plates arranged in parallel. One end of each side plate is fixedly connected to the connecting plate. The connecting plate is fixedly connected to the other end of the straight arm by bolts. The reinforcing plate is located between the two side plates and its two ends are fixedly connected to the side of one of the side plates respectively. The clearance opening is formed by the reinforcing plate, the connecting plate, and the two side plates.
[0012] Preferably, in the above technical solution, the nozzle mounting base is detachably installed between the two side plates.
[0013] Preferably, in the above technical solution, the bottom of the nozzle mounting base is provided with a protective cover, the cleaning nozzle and the spraying nozzle are located inside the protective cover, and the bottom of the protective cover gradually expands outward and has an opening.
[0014] Preferably, in the above technical solution, the edge of the cover opening is provided with a rubber baffle, and a plurality of drainage grooves are formed along the lower edge of the rubber baffle.
[0015] Preferably, in the above technical solution, the angle of the spray nozzle is adjustable.
[0016] Compared with existing technologies, this utility model has the following beneficial effects:
[0017] 1. The multi-purpose spraying arm for robots in this utility model is designed as a combination of a straight arm and a curved arm. A groove is provided in the straight arm, and a clearance opening is provided on the curved arm. This provides more space to accommodate cleaning pipes, spraying pipes, and corresponding electrical control circuits without affecting strength. It also allows the pipes to slide in the groove and bend into the clearance opening when the arm assembly rotates, preventing them from being pulled or tangled. Furthermore, the lightweight design allows the nozzle mounting base to have a shorter response time when installing more types of nozzles.
[0018] 2. In this utility model, one end of the straight arm is provided with two first bending plates. The connection between the first bending plates and the side wall of the wire groove can prevent the side edge of the wire groove from cutting the pipeline when the rotating connection part drives the rotating arm assembly to rotate. The second bending plate provided at the other end of the straight arm can prevent the pipeline from being cut by the bottom edge of the wire groove when it slides along the wire groove towards the relief opening.
[0019] 3. The articulated boom in this utility model is a frame structure welded from side plates, connecting plates and reinforcing plates. It can effectively form a clearance opening for the pipeline in the curved section to make directional clearance. It is also equipped with a blocking clamp to prevent the pipeline from bending in the opposite direction of the clearance opening, preventing tangling and interference with objects in the working environment.
[0020] 4. The nozzle mounting base of this utility model is equipped with a protective cover at the bottom. A rubber baffle with a drainage groove is provided at the opening of the protective cover to form a comb structure. When the cleaning nozzle and the spraying nozzle are working, it can not only prevent the spray mist from splashing, but also the drainage groove on the rubber baffle can be deformed into an open state after being subjected to pressure, so that the wastewater after cleaning can be discharged through the drainage groove. Attached Figure Description
[0021] Figure 1 This is a structural diagram of the multi-purpose spraying arm for robots according to this utility model.
[0022] Figure 2 This is a structural diagram of a straight arm.
[0023] Figure 3 This is a structural diagram of the articulated arm and nozzle mounting base.
[0024] Explanation of key figure labels:
[0025] 100-Switch arm assembly, 110-Straight arm, 111-Cable groove, 120-Crank arm, 121-Leaning opening, 122-Side plate, 123-Connecting plate, 124-Reinforcing plate, 130-Cable clamp, 140-First bending plate, 150-Second bending plate, 160-Barrier clamp;
[0026] 200 - Rotating connection part;
[0027] 300-Nozzle Mounting Base;
[0028] 400 - Cleaning nozzle, 410 - Cleaning piping;
[0029] 500 - Spray nozzle, 510 - Spray piping;
[0030] 600 - Protective cover, 610 - Cover opening, 620 - Rubber baffle;
[0031] 700 - Rotary motor, 710 - Pipe fitting, 720 - Solenoid valve. Detailed Implementation
[0032] 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.
[0033] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0034] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. Where the terms "first," "second," and "third" are used for descriptive purposes and to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.
[0036] like Figures 1 to 3 As shown, the multi-purpose spraying arm for robots in this embodiment includes: a rotating arm assembly 100, a straight arm 110, a wire groove 111, a curved arm 120, a clearance opening 121, a side plate 122, a connecting plate 123, a reinforcing plate 124, a wire clamp 130, a first curved plate 140, a second curved plate 150, a blocking clamp 160, a rotating connection part 200, a nozzle mounting base 300, a cleaning nozzle 400, a cleaning pipeline 410, a spraying nozzle 500, a spraying pipeline 510, a protective cover 600, a cover opening 610, and a rubber baffle 620.
[0037] The swing arm assembly 100 includes a straight arm 110 and a curved arm 120. A wire groove 111 is formed at the top of the straight arm 110, giving its cross-section a C-shape. Both ends of the wire groove 111 pass through both ends of the straight arm 110. A rotating connection 200 is welded to the bottom of the straight arm 110 and positioned near one end. Multiple wire clips 130 are mounted on the wire groove 111. Each wire clip 130 has an arc-shaped structure and its two ends span the wire groove 111, being fixedly connected to the straight arm 110 by bolts. Each wire clip 130 runs along the wire groove 111... The curved arm 120 is spaced apart along its length; it consists of two side plates 122, a connecting plate 123, and a reinforcing plate 124. The two side plates 122 are arranged in parallel, and one end of each side plate 122 is simultaneously fixedly welded to the connecting plate 123, with the surface of the side plates 122 perpendicular to the surface of the connecting plate 123. The connecting plate 123 is fixedly connected to the bottom of the other end of the straight arm 110 by bolts. The reinforcing plate 124 is located between the two side plates 122, and its two ends are respectively welded to the side of one side plate 122. The clearance opening 121 is formed by the reinforcing plate 124. The arm is enclosed by a reinforcing plate 124, a connecting plate 123, and two side plates 122. A blocking clamp 160 is installed on the curved arm 120, spanning above the clearance opening 121 and bolted to the side plates 122 at both ends. A nozzle mounting base 300 is bolted between the other ends of the two side plates 122. A cleaning nozzle 400 and a spray nozzle 500 are installed on the nozzle mounting base 300. The cleaning nozzle 400 has a straight nozzle orifice, and its direction is consistent with that of the straight arm 110. The spray nozzle 500 has an adjustable angle; the cleaning nozzle 400 is connected to the cleaning pipe 410, and the spray nozzle 500 is connected to the spray pipe 510. The cleaning pipe 410 and the spray pipe 510 are both arranged in the groove 111 and can slide along the groove 111. The middle part of the cleaning pipe 410 and the spray pipe 510 can be bent into the relief port 121. The blocking clamp 160 can block the cleaning pipe 410 and the spray pipe 510 to prevent the middle part of the cleaning pipe 410 and the spray pipe 510 from being pushed upward.
[0038] In addition, two first bending plates 140 are symmetrically arranged at one end of the straight arm 110 corresponding to the rotating connection part 200. One end of the first bending plate 140 is welded to the side wall of the wire groove 111, and the other end of the first bending plate 140 is bent into the side of the straight arm 110 in an arc shape. A second bending plate 150 is arranged at the other end of the straight arm 110. One end of the second bending plate 150 is welded to the bottom of the wire groove 111, and the other end of the second bending plate 150 is bent into the relief opening 121 in an arc shape and extends into the relief opening 121.
[0039] In addition, the protective cover 600 is installed at the bottom of the nozzle mounting base 300. The cleaning nozzle 400 and the spray nozzle 500 are both located inside the protective cover 600. The bottom of the protective cover 600 gradually expands outward and has a cover opening 610. A rubber baffle 620 is installed on the edge of the cover opening 610. Several drainage grooves are opened along the lower edge of the rubber baffle 620, which can make the lower edge of the rubber baffle 620 form a comb-like structure.
[0040] Next, the working principle of a multi-purpose spraying arm for robots in this embodiment will be described in detail to enable those skilled in the art to better understand this utility model:
[0041] In use, the rotating connection 200 is fixedly connected to the output end of the rotating motor 700. A pipe connector 710 is connected to the end of the cleaning pipe 410, and a solenoid valve 720 is connected to the end of the spraying pipe 510. The cleaning pipe 410 and the spraying pipe 510 are installed in the line groove 111, and the corresponding portions of the cleaning pipe 410 and the spraying pipe 510 are bent into the relief opening 121. The tops of the cleaning pipe 410 and the spraying pipe 510 are blocked by the line clamp 130 and the blocking clamp 160. The rotating connection 200 drives the rotating arm assembly. When component 100 rotates, the cleaning pipe 410 and the spraying pipe 510 can slide within the groove 111, and the curved portion within the clearance opening 121 provides sliding allowance for this sliding, thereby preventing the ends of the cleaning pipe 410 and the spraying pipe 510 from being pulled when the swing arm assembly 100 rotates; the groove 111 in the straight arm 110 and the curved arm 120 of the frame structure can reduce the weight of the swing arm assembly 100 as much as possible while meeting the allowable strength requirements, so as to achieve the requirements of lightweight design.
[0042] When the robot walks on the vertical surface, the cleaning nozzle 400 cleans, and the rubber baffle 620 can block the splashing of water mist. When the lower edge of the rubber baffle 620 contacts the working surface, it can open the drainage channel, and the sewage can be discharged from the drainage channel. The spray nozzle 500 can rotate so that the spray direction of the nozzle forms a certain angle with the spray surface, thereby increasing the spray area and improving the spraying efficiency.
[0043] In summary, the multi-purpose spraying arm for robots in this embodiment is designed by assembling the rotating arm assembly 100 into a straight arm 110 and a curved arm 120. A wire groove 111 is provided in the straight arm 110, and a clearance opening 121 is provided on the curved arm 120. This provides more space to accommodate the cleaning pipe 410, the spraying pipe 510, and the corresponding electrical control circuits without affecting the strength. It also allows the pipes to slide in the wire groove 111 and bend into the clearance opening 121 when the rotating arm assembly 100 rotates, preventing them from being pulled or tangled. Furthermore, the lightweight design allows the nozzle mounting base 300 to have a shorter response time when installing more types of nozzles.
[0044] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A multi-purpose spraying swing arm for a robot, comprising a swing arm assembly, one end of the swing arm assembly being provided with a rotary connecting portion, and the other end of the swing arm assembly being provided with a spray head mounting seat; characterized in that: the swing arm assembly comprises a straight arm and a curved arm, a wire slot is formed in the top of the straight arm, the wire slot penetrates through both ends of the straight arm, the rotary connecting portion is arranged at one end of the straight arm, one end of the curved arm is fixedly connected to the other end of the straight arm in a detachable manner, the other end of the curved arm is bent downward and fixedly connected to the spray head mounting seat, a clearance is formed in the curved arm, the spray head mounting seat is provided with a cleaning spray head and a spraying spray head, the cleaning spray head is connected with a cleaning pipeline, the spraying spray head is connected with a spraying pipeline, the cleaning pipeline and the spraying pipeline are arranged in the wire slot and can slide along the wire slot, and the middle part of the cleaning pipeline and the spraying pipeline can be bent into the clearance.
2. The multi-purpose spray swing arm for robots according to claim 1, characterized in that a plurality of wire clamps are arranged on the wire slot, the wire clamps are arranged at intervals along the length direction of the wire slot, and the cleaning pipeline and the spraying pipeline are located between the wire clamps and the wire slot.
3. The multi-purpose spray swing arm for robots as defined in claim 1, wherein, two first bent plates are symmetrically arranged at one end of the straight arm, one end of the first bent plate is connected to the side wall of the wire slot, and the other end of the first bent plate is bent in the form of a circular arc toward the side of the straight arm.
4. The multi-purpose spray swing arm for robots as defined in claim 1, wherein, a second bent plate is arranged at the other end of the straight arm, one end of the second bent plate is connected to the bottom of the wire slot, and the other end of the second bent plate is bent in the form of a circular arc into the clearance.
5. The multi-purpose spray swing arm for robots as defined in claim 1, wherein, an arresting hoop is arranged on the curved arm, the arresting hoop spans above the clearance and can arrest the cleaning pipeline and the spraying pipeline.
6. The multi-purpose spray swing arm for robots as defined in claim 1, wherein, the curved arm comprises an edge plate, a connecting plate and a reinforcing plate, the number of the edge plates is two and the two edge plates are arranged in parallel, one end of the two edge plates is fixedly connected to the connecting plate at the same time, the connecting plate is fixedly connected to the other end of the straight arm through bolts, the reinforcing plate is located between the two edge plates and the two ends of the reinforcing plate are fixedly connected to the sides of one of the edge plates respectively, and the clearance is enclosed by the reinforcing plate, the connecting plate and the two edge plates.
7. The multi-purpose spray boom for robots as defined in claim 6, characterized in that the spray head mounting seat is detachably mounted between the two edge plates.
8. The multi-purpose spray boom for robots according to claim 7, characterized in that a protective cover is arranged at the bottom of the spray head mounting seat, the cleaning spray head and the spraying spray head are arranged in the protective cover, the bottom of the protective cover gradually expands outward and is provided with a cover opening.
9. The multi-purpose spray boom for robots according to claim 8, characterized in that a rubber baffle is arranged at the edge of the cover opening, and a plurality of water drainage grooves are formed along the lower edge of the rubber baffle.
10. The multi-purpose spray swing arm for robots as defined in claim 1, wherein, the angle of the spraying spray head is adjustable.