Intelligent spraying robot for indoor wall decoration

Abstract

The invention discloses an intelligent spraying robot for indoor wall decoration, and relates to the field of spraying robots, the intelligent spraying robot comprises a spraying machine body and a spraying mechanical arm, a quick change device is arranged at the end of the spraying mechanical arm, a connecting plate is arranged on one side of the quick change device, an outer sleeve is fixedly arranged on one side of the connecting plate, and an outer support is fixedly arranged on the outer ring surface of the outer sleeve; a servo push rod is fixedly arranged in the middle of the upper surface of one side of the outer support, the telescopic end of the servo push rod movably penetrates through the outer support and is fixedly connected with the upper semicircular clamping ring, a servo motor is fixedly arranged on the cambered surface of one side of the outer support, a gear is fixedly arranged at the output end of the servo motor, and an outer gear ring is arranged on the lower portion of the gear in a meshed mode. A rotary replacement mechanism is arranged on one side of the outer sleeve. According to the paint spraying device, the problem that the human health is affected due to the fact that manual replacement is needed when the paint nozzle is replaced is solved.

Description

Technical Field

[0001] The present application relates to the field of spraying robots, and in particular to an intelligent spraying robot for indoor wall decoration. Background Art

[0002] A spray painting robot, also known as a spray painting robot, is an industrial robot that can automatically spray paint or other coatings. A spray painting robot is mainly composed of a robot body, a computer and a corresponding control system. A hydraulically driven spray painting robot also includes a hydraulic oil source, such as an oil pump, an oil tank and a motor. Depending on the needs, spray painting robots are not only widely used in the automotive manufacturing, instrument manufacturing, electrical appliance manufacturing, enamel manufacturing and other industries, but are also gradually being widely used in the construction and decoration industry.

[0003] For example, the patent application number CN202210483370.X is an intelligent spraying robot for indoor wall decoration. The patent drives the spraying mechanism to approach the wall to be sprayed through the walking mechanism, and then starts the spraying liquid supply mechanism, and transports the spraying liquid from the material box to the nozzle through the delivery pipe, and then the nozzle atomizes the spraying liquid and sprays it onto the wall. At the same time, along the set spraying path, the nozzle is driven to move in three directions by the horizontal drive mechanism, the vertical drive machine and the spraying manipulator, so as to complete the wall spraying work. However, the above device does not involve the replacement of the paint nozzle. In actual use, the nozzle will be replaced when spraying paint in some special places such as the Yin and Yang corners of the wall, and this is often done manually. People entering the room that has just been painted are prone to inhaling harmful substances and causing harm to the body. Summary of the invention

[0004] In order to improve the problem that paint nozzles need to be replaced manually, which in turn affects human health, the present application provides an intelligent spraying robot for indoor wall decoration.

[0005] The present application provides an intelligent spraying robot for indoor wall decoration using the following technical solutions:

[0006] An intelligent spraying robot for indoor wall decoration comprises a spraying machine body and a spraying mechanical arm, wherein a quick-change device is arranged at the end of the spraying mechanical arm, a connecting plate is arranged at the side of the quick-change device away from the spraying mechanical arm, an outer sleeve is fixedly arranged at the side of the connecting plate away from the quick-change device, an outer bracket is fixedly arranged at the outer ring surface of the outer sleeve, a servo push rod is fixedly arranged at the middle of the upper surface of the side of the outer bracket away from the connecting plate, and a telescopic end of the servo push rod movably passes through the outer bracket and is fixedly connected to an upper semicircular clamping ring;

[0007] The outer bracket is fixedly provided with a servo motor on the arc surface of one side of the servo push rod, the output end of the servo motor is fixedly provided with a gear, the lower part of the gear is meshed with an outer gear ring rotatably arranged with the outer bracket, and the inner cavity of the outer sleeve is fixedly provided with an inner paint tube;

[0008] A rotation replacement mechanism is arranged on the side of the outer sleeve away from the connecting plate, and the rotation replacement mechanism includes an inner lining plate fixedly arranged on the middle part of the surface of the outer sleeve away from the connecting plate, and a U-shaped groove is opened from the middle to the upper part of the inner lining plate, and a paint spray head is slidably arranged in the U-shaped groove, and the paint spray head is slidably arranged in a plurality of L-shaped guide rods fixedly connected to the inner ring surface of the outer gear ring.

[0009] By adopting the above technical solution, the rotary replacement mechanism cooperates with the servo motor, gear, outer gear ring and servo push rod, so that the paint nozzle can be quickly replaced, avoiding physical harm caused by manual replacement, and is also more convenient.

[0010] Preferably, the rotation replacement mechanism further comprises a cross guide rail composed of a plurality of L-shaped guide rods which are symmetrical to each other and arranged at intervals, and a fixing plate fixedly connected to the paint spray head is slidably arranged on the inner annular surface of the cross guide rail.

[0011] By adopting the above technical solution, the cross guide rail can guide and limit the paint spray head.

[0012] Preferably, T-shaped sliding bars with the same structure are fixed on the inner walls on both sides where the fixed plate and the cross guide rail slide against each other, and the T-shaped sliding bars are slidably provided with T-shaped sliding grooves opened on the side walls of the cross guide rail.

[0013] By adopting the above technical solution, the T-shaped sliding bar and the T-shaped sliding groove can both be set to have smooth surfaces, which can reduce wear and increase the sliding effect.

[0014] Preferably, a lower semicircular clamping ring is provided at the lower part of the upper semicircular clamping ring and abuts against the outer ring surface of the paint spray head. The upper semicircular clamping ring and the lower semicircular clamping ring are located on the same axis and clamp and fix the paint spray head.

[0015] By adopting the above technical solution, the upper semicircular ring and the lower semicircular ring can achieve a better clamping and fixing effect on the paint spray head, thereby making the paint spray head difficult to rotate.

[0016] Preferably, a plurality of symmetrically arranged springs are fixed to the lower end of the lower semicircular clamping ring, and one end of the spring away from the lower semicircular clamping ring is fixed in the inner cavity of the telescopic groove, and the lower end of the telescopic groove is fixed on the surface of the side of the lower end of the inner lining plate away from the outer sleeve.

[0017] By adopting the above technical solution, the spring can push the lower semicircular ring and the paint nozzle out of the U-shaped groove, thereby realizing the replacement of the next model of paint nozzle.

[0018] Preferably, the inner cavity surface of the telescopic groove and the outer surface of the lower end of the lower semicircular clamping ring are slidably arranged relative to each other.

[0019] By adopting the above technical solution, the telescopic groove can accommodate the lower semicircular clamping ring into the inner cavity, thereby achieving the telescopic effect of the lower semicircular clamping ring.

[0020] Preferably, a cleaning pipe is fixedly provided through one side of the outer sleeve, and the cleaning pipe is located at one end of the L-shaped guide rod and is fixed with a cleaning nozzle abutting against the paint nozzle, and the inner cavity of the cleaning nozzle is connected with the inner cavity of the paint nozzle.

[0021] By adopting the above technical solution, the cleaning nozzle and the cleaning pipe cooperate with each other to clean the inside of the replaced paint nozzle, thereby preventing the nozzle from being blocked after the paint dries.

[0022] Preferably, a waste water tank is fixedly provided on the side wall of the outer bracket on one side of the cleaning nozzle, and a drain port is provided at the bottom of the inner cavity of the waste water tank.

[0023] By adopting the above technical solution, the waste water tank and the drain port cooperate with each other to collect and discharge the waste water after cleaning the paint nozzle.

[0024] Preferably, the outer sleeve is provided with a fan-shaped groove on one side of the cleaning pipe for facilitating replacement of the cleaning nozzle.

[0025] By adopting the above technical solution, the fan-shaped groove can facilitate the disassembly and assembly of the cleaning nozzle and facilitate replacement.

[0026] Preferably, a paint pipe joint is fixedly provided on one side of the connecting plate, and the inner cavity of the paint pipe joint is communicated with the inner cavity of the connecting plate and the inner paint pipe.

[0027] By adopting the above technical solution, the paint hose joint can be quickly connected to the paint bucket arranged inside the spray machine body, thereby improving work efficiency.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. Use the servo motor to drive the gear and the outer gear ring to rotate, and then drive the L-shaped guide rod and the paint nozzle to rotate, and align the paint nozzle with the U-shaped groove to realize the operation of replacing different paint nozzles;

[0030] 2. With the help of the servo push rod, push the lower semicircular clamping ring and the paint nozzle into the U-shaped groove, and through the mutual cooperation and mutual limitation of the T-shaped slide groove, T-shaped slide bar and cross guide rail, the replaced paint nozzle is limited and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is an overall schematic diagram of this application;

[0032] Figure 2 This is an enlarged view of the painting area of ​​this application;

[0033] Figure 3 This is an overall diagram of the spraying device of this application;

[0034] Figure 4 A cross-sectional view of the spraying device of the present application;

[0035] Figure 5 A rear view of the internal structure of the spraying device of the present application;

[0036] Figure 6 A front view of the internal structure of the spraying device of the present application;

[0037] Figure 7 This is an enlarged view of the partial structure of the rotation replacement mechanism of the present application;

[0038] Figure 8 This is an exploded view of the rotation replacement mechanism of this application.

[0039] Reference numerals: 100, spraying machine body; 101, spraying robot arm; 102, quick change device;

[0040] 200, connecting plate; 201, outer sleeve; 202, outer bracket; 203, paint pipe joint; 204, servo motor; 205, gear; 206, outer gear ring; 207, servo push rod; 208, upper semicircular snap ring; 209, lower semicircular snap ring; 210, telescopic slot; 211, spring; 212, fan-shaped slot;

[0041] 300, rotating replacement mechanism; 301, inner lining plate; 302, L-shaped guide rod; 303, fixing plate; 304, paint spray head; 305, T-shaped slide groove; 306, T-shaped slide rod; 307, cross guide rail; 308, U-shaped groove;

[0042] 400, cleaning pipe; 401, cleaning nozzle; 500, internal paint pipe; 600, waste water tank; 601, drain. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-Figure 8 This application is described in further detail.

[0044] The embodiment of the present application discloses an intelligent spraying robot for indoor wall decoration.

[0045] Reference Figure 1-Figure 4A smart spraying robot for indoor wall decoration includes a spraying machine body 100 for walking and loading paint and an adjustable spraying robot arm 101 for spraying, and a quick-changing device 102 is arranged at the upper end of the spraying robot arm 101 away from the spraying machine body 100, and the quick-changing device 102 is arranged at a side away from the spraying robot arm 101. A connecting plate 200 is arranged, and a paint pipe joint 203 for connecting a paint pipe is fixedly arranged on the side wall of one side of the connecting plate 200, and the inner cavity of the paint pipe joint 203 is communicated with the inner cavity arranged on the connecting plate 200.

[0046] It should be noted that the spraying machine body 100, the spraying robot arm 101, and the quick-change device 102 are all prior arts, and their structural principles are not described in detail here.

[0047] Reference Figure 2-Figure 8 , and the side surface of the connecting plate 200 away from the quick-change device 102 is fixedly arranged with the middle part of the side surface of the outer sleeve 201, and the outer bracket 202 is fixedly arranged on the outer ring surface of the outer sleeve 201, and the middle part of the upper ring surface of the outer bracket 202 away from the connecting plate 200 is fixedly connected with the servo push rod 207, and the telescopic end of the servo push rod 207 movably passes through the outer bracket 202, and the telescopic end of the servo push rod 207 is fixedly connected with the middle part of the upper plane of the upper semicircular retaining ring 208, and the lower semicircular arc of the upper semicircular retaining ring 208 is positive The upper and lower semicircular snap rings 208 are configured to clamp half of the paint nozzle 304, and a lower semicircular snap ring 209 is provided at the lower part of the upper and lower semicircular snap rings 208, and the upper and lower semicircular snap rings 209 have an upper and lower semicircular surface that can clamp half of the outer surface of the paint nozzle 304. The upper and lower semicircular snap rings 208 and 209 are identical in structure, and the upper and lower semicircular snap rings 208 and 209 are located on the same axis, so that the upper and lower semicircular snap rings 208 and 209 can move relative to each other to clamp the paint nozzle 304 in the middle for fixing and limiting.

[0048] Reference Figure 2-Figure 8 , and a plurality of springs 211 are fixedly arranged on the lower end plane of the lower semicircular snap ring 209, and the plurality of springs 211 are symmetrical and have the same structure, and the plurality of springs 211 are fixedly connected to the bottom surface of the inner cavity of the telescopic groove 210 at one end away from the lower semicircular snap ring 209, and the lower end outer surface of the lower semicircular snap ring 209 and the inner cavity side wall of the telescopic groove 210 slide with each other, so that the lower semicircular snap ring 209 can be retracted into the telescopic groove 210, and the lower end side surface of the telescopic groove 210 is fixedly connected to the lower end of the side surface of the inner lining plate 301 away from the outer sleeve 201, so that the telescopic groove 210 can support the movement of the lower semicircular snap ring 209, so that the lower semicircular snap ring 209 can send the paint nozzle 304 to the opening of the U-shaped groove 308 under the reaction force of the spring 211 to replace the paint nozzle 304.

[0049] Reference Figure 2-Figure 8 , and a servo motor 204 is fixedly arranged on the upper side surface of one side of the outer bracket 202, and the servo motor 204 is located on one side of the servo push rod 207, and the output end of the servo motor 204 is fixedly passed through the middle of the gear 205, so that when the output end of the servo motor 204 rotates, it can drive the gear 205 to rotate, and the lower part of the gear 205 is meshed with the outer gear ring 206, and one side surface of the outer gear ring 206 and the outer bracket 202 are rotated with each other, and an inner paint tube 500 is fixedly passed through the inner cavity of the outer sleeve 201, and the two ends of the inner paint tube 500 are respectively connected with the paint nozzle 304 and the connecting plate 200, so that the inner cavity of the paint nozzle 304, the inner cavity of the inner paint tube 500, the inner cavity of the paint tube joint 203, and the inner cavity of the connecting plate 200 can be connected to each other.

[0050] It should be noted that the paint pipe joint 203, the servo push rod 207, and the servo motor 204 are all existing structures, and the servo motor 204 and the servo push rod 207 also need to be connected and controlled by a controller such as a PLC. However, since they are existing devices, their structural principles will not be described in detail here.

[0051] By setting up the quick-change device 102, the spray robot arm 101 and the connecting plate 200 and the spray device connected to the connecting plate 200 can be quickly disassembled and assembled, and the connecting plate 200 and the outer sleeve 201 are fixedly connected to each other, which can fix and support the inner paint tube 500, so that the inner cavities between the connecting plate 200, the paint tube joint 203, and the inner paint tube 500 can be the same, so that the paint can pass smoothly, and the outer bracket 202 fixedly arranged outside the outer sleeve 201 can support the servo motor 204 and the servo push rod 207, so that when the output end of the servo motor 204 rotates, it can drive the gear 205 to rotate together, and then drive the outer gear ring 206 meshing with it to rotate synchronously, thereby driving the L-shaped guide rod 302 to rotate synchronously.

[0052] The telescopic end of the servo push rod 207 can drive the upper semicircular snap ring 208 fixed thereto to move, and the upper semicircular snap ring 208 pushes the paint nozzle 304 to move synchronously. When the paint nozzle 304 is pushed forward by the upper semicircular snap ring 208, it will abut against the lower semicircular snap ring 209, thereby pushing the lower semicircular snap ring 209 to move longitudinally and retract into the inner cavity of the telescopic groove 210, and at the same time compressing the spring 211 until the inner cavity of the paint nozzle 304 reaches the bottom of the U-shaped groove 308 and is connected with the inner cavity of the inner paint tube 500. When the telescopic end of the servo push rod 207 retracts with the upper semicircular snap ring 208, the lower semicircular snap ring 209 is pushed out of the inner cavity of the telescopic groove 210 under the rebound action of the spring 211, and at the same time, the paint nozzle 304 is pushed to the opening of the U-shaped groove 308 to follow the rotation and replace the next paint nozzle 304.

[0053] Reference Figure 6-Figure 8 A rotation replacement mechanism 300 is provided on the side of the outer sleeve 201 away from the connecting plate 200, and the rotation replacement mechanism 300 includes an inner lining plate 301 fixedly provided in the middle of the surface of the side of the outer sleeve 201 away from the connecting plate 200, and a U-shaped groove 308 connected from the middle to the upper outer ring surface is provided on the inner lining plate 301, and the inner cavity width of the U-shaped groove 308 is greater than the outer diameter of the paint spray head 304 by 1-2mm, and the inner cavity of the U-shaped groove 308 can allow the paint spray head 304 to slide, and a fixing plate 303 is fixedly provided on the outer ring surface of the side of the paint spray head 304 away from the inner lining plate 301, and T-shaped slide bars 306 are fixedly provided on the outer side walls of the fixing plate 303 on both sides, and the T-shaped slide bars 306 are fixedly provided on the outer side walls of the fixing plate 303. 06 are provided with T-shaped grooves 305 for mutual sliding on the outer side, and the T-shaped grooves 305 are opened on a number of L-shaped guide rods 302 which are symmetrically arranged, and a number of L-shaped guide rods 302 are arranged at intervals to form a cross guide rail 307 for sliding of the fixed plate 303 and the paint nozzle 304, and the T-shaped grooves 305 are opened in the middle of the inner side wall of the cross guide rail 307, and a number of L-shaped guide rods 302 are fixedly connected to the outer gear ring 206, and the distance from the outer diameter of the inner lining plate 301 to the outer bracket 202 and the outer gear ring 206 is greater than the outer diameter of the paint nozzle 304, so that a channel is formed between the inner lining plate 301, the outer bracket 202, and the outer gear ring 206 for the paint nozzle 304 to pass through when it rotates.

[0054] When the paint spray head 304 is pushed by the lower semicircular retaining ring 209 and slides in the cross guide rail 307, the fixed plate 303 fixed on the outside of the paint spray head 304 will move along, thereby driving the T-shaped slide bars 306 fixed on both sides thereof to move in the T-shaped slide groove 305. When the paint spray head 304 and the fixed plate 303 are pushed outside the opening of the U-shaped groove 308, that is, in the channel formed between the inner lining plate 301 and the outer bracket 202 and the outer gear ring 206, the L-shaped guide rod 302 will rotate along with the outer gear ring 206, thereby causing the paint spray head 304 to rotate together with the fixed plate 303, so as to replace the paint spray head 304.

[0055] It should be noted that the paint spray head 304, the L-shaped guide rod 302 and the cross guide rail 307 can be set in quantity according to actual needs, and the paint spray head 304 is an existing structure, and its structural principle will not be described in detail here.

[0056] Reference Figure 2-Figure 6, and a cleaning pipe 400 for conveying liquid to clean the inside of the replaced paint nozzle 304 is fixedly provided on one side of the outer sleeve 201, and a cleaning nozzle 401 is fixedly provided at one end of the cleaning pipe 400 located on the L-shaped guide rod 302, which is in contact with the replaced paint nozzle 304 and can flush the inner cavity of the paint nozzle 304, and the inner cavity of the paint nozzle 304 is connected with the inner cavity of the cleaning nozzle 401 and the inner cavity of the cleaning pipe 400, and the outer sleeve 201 A fan-shaped groove 212 is provided on one side surface of the cleaning pipe 400, and the fan-shaped groove 212 can facilitate the replacement of the cleaning nozzle 401, and the outer bracket 202 is located on the side wall of the cleaning nozzle 401 and is fixedly provided with a wastewater tank 600 for collecting wastewater sprayed by the cleaning nozzle 401 when flushing the paint nozzle 304, and the wastewater tank 600 can also prevent the splashing of waste liquid and a drain outlet 601 is provided at the bottom of the inner cavity of the wastewater tank 600 to discharge the wastewater.

[0057] The cleaning pipe 400 and the cleaning nozzle 401 interact with each other to flush the paint nozzle 304 that has just been replaced, and to flush the paint remaining inside the paint nozzle 304. A quick connector is provided at one end of the cleaning pipe 400 away from the cleaning nozzle 401 to be connected to a water pump pipe. When the cleaning nozzle 401 flushes the inside of the paint nozzle 304, liquid will splash out and easily spray onto the wall. The setting of the waste water tank 600 can block the splashing liquid and discharge the liquid through the drain port 601 set at the bottom to prevent damage to the wall paint.

[0058] It should be noted that one of the cross rails 307 needs to be parallel to the U-shaped groove 308 so that the paint spray head 304 can perfectly dock with the U-shaped groove 308.

[0059] The implementation principle of the intelligent spraying robot for indoor wall decoration in the embodiment of the present application is as follows: before spraying paint, it is necessary to adjust the appropriate paint spray head 304 according to the on-site conditions. At this time, the servo motor 204 is instructed to rotate the output end of the servo motor 204, thereby driving the gear 205 and the outer gear ring 206 to rotate synchronously, and then the outer gear ring 206 drives the L-shaped guide rod 302 and the fixed plate 303, and the paint spray head 304 to rotate together in the circular channel between the inner lining plate 301 and the outer gear ring 206 until the required paint spray head is reached. When 304 rotates to the opening of the U-shaped groove 308, the servo push rod 207 is instructed through the PLC, so that the telescopic end of the servo push rod 207 is extended, and the upper semicircular clamping ring 208 is driven to move together, and then it is engaged with the paint nozzle 304 and the paint nozzle 304 is pushed into the U-shaped groove 308, and at the same time, the lower semicircular clamping ring 209 is pushed to shrink into the telescopic groove 210. At the same time, the paint nozzle 304 will drive the T-shaped slide bar 306 to move in the T-shaped slide groove 305 until the inner cavity of the paint nozzle 304 is connected with the inner cavity of the inner paint tube 500, and the wall can be sprayed with paint.

[0060] When the paint nozzle 304 needs to be replaced, the servo push rod 207 only needs to be retracted, and the lower semicircular retaining ring 209 and the paint nozzle 304 are pushed out under the reaction force of the spring 211, and then the servo motor 204, gear 205, outer gear ring 206, and L-shaped guide rod 302 will rotate and replace the paint nozzle 304.

[0061] The above are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. An intelligent spraying robot for indoor wall decoration, characterized in that: The invention comprises a spraying machine body (100) and a spraying mechanical arm (101), wherein a quick-change device (102) is arranged at the end of the spraying mechanical arm (101), a connecting plate (200) is arranged at the side of the quick-change device (102) away from the spraying mechanical arm (101), an outer sleeve (201) is fixedly arranged at the side of the connecting plate (200) away from the quick-change device (102), an outer bracket (202) is fixedly arranged at the outer ring surface of the outer sleeve (201), a servo push rod (207) is fixedly arranged at the middle part of the upper surface of the side of the outer bracket (202) away from the connecting plate (200), and the telescopic end of the servo push rod (207) movably passes through the outer bracket (202) and is fixedly connected to an upper semicircular clamping ring (208); The outer bracket (202) is fixedly provided with a servo motor (204) on an arc surface on one side of the servo push rod (207); a gear (205) is fixedly provided at the output end of the servo motor (204); an outer gear ring (206) is meshedly provided at the lower part of the gear (205) and is rotatably provided with the outer bracket (202); an inner paint tube (500) is fixedly provided in the inner cavity of the outer sleeve (201); A rotation replacement mechanism (300) is provided on the side of the outer sleeve (201) away from the connecting plate (200), and the rotation replacement mechanism (300) comprises an inner lining plate (301) fixedly arranged on the middle part of the surface of the side of the outer sleeve (201) away from the connecting plate (200), a U-shaped groove (308) is provided from the middle to the upper part of the inner lining plate (301), a paint spray head (304) is slidably arranged in the U-shaped groove (308), and the paint spray head (304) is slidably arranged in a plurality of L-shaped guide rods (302) fixedly connected to the inner ring surface of the outer gear ring (206).

2. The intelligent spraying robot for indoor wall decoration according to claim 1 is characterized in that: The rotation replacement mechanism (300) further comprises a cross guide rail (307) composed of a plurality of L-shaped guide rods (302) symmetrically arranged at intervals, and a fixing plate (303) fixedly connected to the paint spray head (304) is slidably arranged on the inner annular surface of the cross guide rail (307).

3. The intelligent spraying robot for indoor wall decoration according to claim 2 is characterized in that: T-shaped slide bars (306) of the same structure are fixedly arranged on the inner walls of both sides where the fixed plate (303) and the cross guide rail (307) slide against each other, and the T-shaped slide bars (306) are slidably arranged with T-shaped slide grooves (305) opened on the side walls of the cross guide rail (307).

4. The intelligent spraying robot for indoor wall decoration according to claim 1 is characterized in that: A lower semicircular clamping ring (209) is provided at the lower part of the upper semicircular clamping ring (208) and is in contact with the outer ring surface of the paint spray head (304). The upper semicircular clamping ring (208) and the lower semicircular clamping ring (209) are located on the same axis and clamp and fix the paint spray head (304).

5. The intelligent spraying robot for indoor wall decoration according to claim 4 is characterized in that: A plurality of symmetrically arranged springs (211) are fixedly disposed at the lower end of the lower semicircular retaining ring (209); one end of the spring (211) away from the lower semicircular retaining ring (209) is fixedly disposed in the inner cavity of the telescopic groove (210); and the lower end of the telescopic groove (210) is fixedly disposed on the surface of the side of the lower end of the inner lining plate (301) away from the outer sleeve (201).

6. The intelligent spraying robot for indoor wall decoration according to claim 5, characterized in that: The inner cavity surface of the telescopic groove (210) and the outer surface of the lower end of the lower semicircular clamping ring (209) are arranged to slide with each other.

7. The intelligent spraying robot for indoor wall decoration according to claim 1, characterized in that: A cleaning pipe (400) is fixedly provided on one side of the outer sleeve (201) and penetrates therethrough. The cleaning pipe (400) is located at one end of the L-shaped guide rod (302) and is fixedly provided with a cleaning nozzle (401) that abuts against the paint nozzle (304). The inner cavity of the cleaning nozzle (401) is communicated with the inner cavity of the paint nozzle (304).

8. The intelligent spraying robot for indoor wall decoration according to claim 1, characterized in that: The outer bracket (202) is provided with a waste water tank (600) on a side wall of the cleaning nozzle (401), and a drain port (601) is provided at the bottom of the inner cavity of the waste water tank (600).

9. The intelligent spraying robot for indoor wall decoration according to claim 1, characterized in that: The outer sleeve (201) is provided with a fan-shaped groove (212) on one side of the cleaning pipe (400) for facilitating replacement of the cleaning nozzle (401).

10. The intelligent spraying robot for indoor wall decoration according to claim 1, characterized in that: A paint pipe joint (203) is fixedly provided on one side of the connecting plate (200), and the inner cavity of the paint pipe joint (203) is in communication with the inner cavities of the connecting plate (200) and the inner paint pipe (500).

Images