Paint spraying device and paint spraying method for building decoration

Abstract

The invention relates to the field of paint spraying, in particular to a paint spraying device for building decoration and a paint spraying method. A barrel is arranged at the top of the handheld rod and rotationally connected with the support, and the top end of the barrel is connected with the fan-shaped nozzle through a hose a; one end of the hose b is communicated with the barrel, the other end of the hose b penetrates through the fixing ring and then is connected with paint spraying equipment, and a paint spraying switch is arranged on the hose b; the temporary blocking mechanism is arranged on the handheld rod in a sliding mode and used for extruding the hose b to block circulation of paint in the hose b; and the vertical guide mechanism is supported on the ground and is used for limiting the bracket to move in the vertical direction. According to the paint spraying device, the fan-shaped nozzles can vertically face the to-be-painted surface all the time for paint spraying, the paint spraying uniformity can be improved, and meanwhile paint splashing is reduced. In addition, the vertical rod and the handheld rod are formed by connecting multiple sections in a splicing mode, carrying after splitting is facilitated, the occupied space is small, and portability is good.

Description

Technical Field

[0001] The invention relates to the technical field of spray painting, and in particular to a spray painting device and a spray painting method for building decoration. Background Art

[0002] Paint spraying devices are commonly used in building decoration and are widely used for large-area spraying of walls, ceilings and building components. Paint spraying devices generate pressure through air pumps, electric motors or manual operations to press paint into pipes and spray them out through nozzles to form a uniform and smooth coating. Currently, handheld spray nozzles are commonly used for spraying paint. Operators hold a long tube to connect the nozzles and spray paint through the nozzles. When spraying paint on the wall, the nozzles cannot always be perpendicular to the wall due to the constant change of the upper and lower spray angles. The greater the angle of the nozzles deviating from the perpendicular to the wall, the more difficult it is for the paint to adhere to the wall, resulting in serious splashing of the paint, which not only wastes paint but also pollutes the working environment.

[0003] A Chinese patent with announcement number CN114934652B discloses a paint spraying device for building decoration and a method of using the same. An operator first installs a lifting assembly, a first installation box, and a second installation box. The operator uses the lifting assembly to control the height of the first installation box and the second installation box. Then the operator aims the nozzle at the wall to be sprayed. The operator starts the delivery pump. The paint in the storage box passes through the feed pipe, the delivery pump, and the discharge pipe in sequence, and is finally sprayed out from the nozzle. The guide rope is set to provide a guide for the movement of the working box. The drive assembly is set to enable the working box to move evenly along the length direction of the guide rope, thereby ensuring that the wall is evenly painted, thereby ensuring the quality of the paint spraying on the construction wall.

[0004] However, the above-mentioned disclosed solutions have the following shortcomings: the overall structure is large, the portability is poor, and it is difficult to flexibly adapt to different working scenes. In addition, in the prior art, the spray paint cannot be sprayed vertically on the wall, which wastes paint and pollutes the working environment. Summary of the invention

[0005] The purpose of the present invention is to propose a paint spraying device and a paint spraying method for building decoration in order to solve the problems in the background technology that it is difficult to spray paint perpendicularly to the wall surface and the equipment structure is bulky and cannot adapt to various painting scenes.

[0006] On the one hand, the present invention provides a paint spraying device for building decoration, comprising: A bracket, on which a fan-shaped nozzle is arranged perpendicular to the surface to be sprayed; A hand-held rod, a cylinder is arranged on the top thereof, the cylinder is rotatably connected to the bracket and rotates in a vertical plane, and the top end of the cylinder is connected to the fan-shaped nozzle through a hose a; The hose b has one end connected to the cylinder and the other end connected to the paint spraying equipment after passing through a fixing ring arranged at the bottom of the hand-held rod. A paint spraying switch is arranged on the hose b. A temporary blocking mechanism is slidably arranged on the hand-held rod and is used to squeeze the hose b to block the flow of the internal paint; and a vertical guide mechanism, which is supported on the ground and is used to limit the bracket to move in the vertical direction.

[0007] Preferably, the bracket includes a plurality of U-shaped rods arranged side by side, and a connecting plate connecting the plurality of U-shaped rods; the fan-shaped nozzle is arranged on the connecting plate and vertically faces the surface to be painted.

[0008] Preferably, an anti-splash shield is provided inside the bracket, the fan-shaped nozzle is located inside the anti-splash shield, and the anti-splash shield is provided with two opposite openings.

[0009] Preferably, two fixing plates are arranged on the bracket, and two coaxial support rods are arranged on the outer wall of the cylinder. The two support rods are rotatably connected to the two fixing plates respectively, and a locking bolt for rotating against the support rod is arranged on one of the fixing plates.

[0010] Preferably, the temporary blocking mechanism includes a collar sleeved on a hand-held rod, two flip plates rotatably arranged on the outer peripheral wall of the collar, clamping plates arranged on opposite end surfaces of the two flip plates, and a hand-held rod arranged on the two flip plates.

[0011] Preferably, an elastic sheet is provided on one of the flip plates, and an avoidance groove for the elastic sheet to pass through is provided on the other flip plate. A baffle is provided at the end of the elastic sheet, and the baffle rests on the flip plate. The hose b is located in the space formed by the two clamping plates and the elastic sheet.

[0012] Preferably, the vertical guide mechanism includes a base, a vertical rod vertically arranged on the base, a plurality of guide sleeves arranged on the bracket and sleeved on the vertical rod, a flat plate connected to the base, and a pedal member arranged at the end of the flat plate.

[0013] On the other hand, the present invention provides a painting method of a painting device for building decoration, comprising the following steps: S1. Arrange the vertical guide mechanism and complete the coordination with the bracket; S2. Hold the hand-held rod with one hand and operate the temporary blocking mechanism with the other hand. First, use the hand-held rod to move the bracket and fan-shaped nozzle to the highest or lowest point of the surface to be painted; S3, turn on the paint spraying switch, start the paint spraying operation, drive the bracket to move in the vertical direction through the handheld rod, and complete a vertical stroke of paint spraying; S4, operate the temporary blocking mechanism to interrupt the painting, move the vertical guide mechanism to the position required for the next painting stroke, release the temporary blocking mechanism from blocking the hose b, continue painting and move in the vertical direction, repeat the operation until the painting of all vertical strokes is completed; S5. Remove the vertical guide mechanism, hold the handle, and aim the fan-shaped nozzle at the corner to spray paint on the blank area.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects: The bracket is restricted by a vertical rod so that it can only move in the vertical direction. The operator only needs to control the up and down movement of the bracket and simply control the angle of the bracket so that it is roughly facing the surface to be painted, so that the fan-shaped nozzle can always spray paint vertically toward the surface to be painted. Vertical painting helps to improve the uniformity of painting and reduce paint splashing. Combined with the setting of the anti-splash shield, it can greatly reduce paint splashing and help maintain a good working environment. The vertical pole and the hand-held pole are connected by multi-section splicing, which is convenient for carrying after being disassembled. It occupies little space and has good portability. The vertical guide mechanism is driven to move by the movement of the feet, and the operation is simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of some structures; Figure 3 for Figure 1 A is an enlarged schematic diagram; Figure 4 for Figure 1 The enlarged schematic diagram of point B in FIG. Figure 5 for Figure 2 The enlarged schematic diagram of point C in FIG.

[0016] 1. U-shaped rod; 2. connecting plate; 3. anti-splash shield; 4. avoidance hole; 5. fan-shaped nozzle; 6. hose a; 7. cylinder; 8. fixing plate; 9. limiting cylinder; 10. support rod; 11. locking bolt; 12. hand-held rod; 13. hose b; 14. fixing ring; 15. paint spray switch; 16. collar; 17. fixing block; 18. rotating shaft; 19. flip plate; 20. clamping plate; 21. hand-held rod; 22. elastic sheet; 23. baffle; 24. base; 25. flat plate; 26. pedal; 27. vertical rod; 28. guide sleeve; 29. ​​screw. DETAILED DESCRIPTION

[0017] Embodiment 1, as Figure 1-Figure 2 As shown, a paint spraying device for building decoration proposed by the present invention comprises: A bracket, on which a fan-shaped nozzle 5 is arranged perpendicular to the surface to be painted, and the fan-shaped nozzle 5 sprays a horizontal fan-shaped paint surface; A hand-held rod 12 is provided with a cylinder 7 on the top, which is rotatably connected to the bracket and rotates in a vertical plane, and the top of the cylinder 7 is connected to the fan-shaped nozzle 5 through a hose a6; the hand-held rod 12 is spliced ​​from a plurality of round rods, which are directly threadedly connected, such as screws and threaded holes are respectively provided at the ends of the two round rods. In the present embodiment, two hand-held rods 12 are provided, and the length of each hand-held rod is one meter; in an optional embodiment, two fixing plates 8 are provided on the bracket, and two coaxial support rods 10 are provided on the outer wall of the cylinder 7, and the two support rods 10 are respectively rotatably connected to the two fixing plates 8, and a locking bolt 11 for rotating and tightening the support rod 10 is provided on one of the fixing plates 8; limiting cylinders 9 are provided on the opposite end surfaces of the two fixing plates 8, and the two support rods 10 are respectively inserted into the two limiting cylinders 9, and threaded holes are provided on the fixing plates 8. The locking bolts 11 pass through the threaded holes and abut against the support rods 10. After the locking bolts 11 are rotated to disengage from the support rods 10, the support rods 10 can be easily rotated; The hose b13 has one end connected to the cylinder 7 and the other end connected to the paint spraying equipment after passing through the fixing ring 14 arranged at the bottom of the hand-held rod 12. The hose b13 is provided with a paint spraying switch 15, which is connected to the fixing ring 14 to improve stability. A temporary blocking mechanism is slidably disposed on the hand-held rod 12 and is used to squeeze the hose b13 to block the flow of the internal paint; and a vertical guide mechanism, which is supported on the ground and is used to limit the bracket to move in the vertical direction.

[0018] Embodiment 2, as Figure 1 and Figure 4 As shown, the present invention proposes a paint spraying device for building decoration. Compared with the first embodiment, this embodiment introduces the structure of the bracket in detail.

[0019] The bracket includes a plurality of U-shaped rods 1 arranged side by side, and a connecting plate 2 connecting the plurality of U-shaped rods 1; a fan-shaped nozzle 5 is arranged on the connecting plate 2 and vertically faces the surface to be painted; in an optional embodiment, three U-shaped rods 1 are arranged, the connecting plate 2 is vertically arranged in the middle position of the U-shaped rod 1, and an avoidance hole 4 for the hose a6 to pass through is arranged on the connecting plate 2.

[0020] An anti-splash shield 3 is arranged on the inner side of the bracket, and the fan-shaped nozzle 5 is located in the anti-splash shield 3. The anti-splash shield 3 is provided with two opposite openings, one opening is used for allowing paint to pass through, and the other outlet is used for the operator to observe the painting status. The anti-splash shield 3 is mainly used to prevent splashing around, and there is very little splashing on the rear side of the fan-shaped nozzle 5, and the painting status can be observed by setting an opening. The anti-splash shield 3 can be a wooden box, a paper box, a plastic box, etc., as long as it is a square structure.

[0021] Embodiment three, as Figure 2 and Figure 5As shown, the present invention proposes a paint spraying device for building decoration. Compared with the first embodiment, this embodiment introduces the structure of the temporary blocking mechanism in detail.

[0022] The temporary blocking mechanism includes a ring 16 sleeved on the hand-held rod 12, two flip plates 19 rotatably arranged on the outer peripheral wall of the ring 16, a clamping plate 20 arranged on the opposite end surfaces of the two flip plates 19, and a hand-grip rod 21 arranged on the two flip plates 19; in an optional embodiment, a fixed block 17 is arranged on the outer peripheral wall of the ring 16, a rotating shaft 18 is rotatably arranged on the fixed block 17, and the flip plate 19 is arranged on the rotating shaft 18. The operator holds the two hand-grip rods 21 and applies force to squeeze the hose b13 through the two clamping plates 20, thereby blocking the flow of paint inside the hose b13, thereby temporarily interrupting the paint spraying.

[0023] An elastic sheet 22 is provided on one of the flip plates 19, and an avoidance groove for the elastic sheet 22 to pass through is provided on the other flip plate 19. A baffle 23 is provided at the end of the elastic sheet 22, and the baffle 23 is against the flip plate 19. The hose b13 is located in the space formed by the two clamping plates 20 and the elastic sheet 22; the elastic sheet 22 can limit the maximum opening of the two hand grips 21 to prevent the opening from being too large and the operation from being inconvenient, and can also limit the hose b13 so that it cannot move upward when the two clamping plates 20 are close to each other for clamping, thereby maintaining stable clamping.

[0024] Embodiment 4, as Figure 1 and Figure 3 As shown, the present invention proposes a paint spraying device for building decoration. Compared with the third embodiment, this embodiment introduces the structure of the vertical guide mechanism in detail.

[0025] The vertical guide mechanism includes a base 24, a vertical rod 27 vertically arranged on the base 24, a plurality of guide sleeves 28 arranged on the bracket and sleeved on the vertical rod 27, a flat plate 25 connected to the base 24, and a pedal 26 arranged at the end of the flat plate 25; in an optional embodiment, a plurality of vertical rods 27 are arranged side by side, a screw 29 is arranged on the top of the vertical rod 27, and a threaded hole is arranged on the bottom. Two adjacent vertical rods 27 are threadedly quickly connected through the cooperation of the screw 29 and the threaded hole, and can also be easily disassembled and carried, reducing the occupied space. The pedal 26 is a square structure with a hole for the foot to be inserted. When spraying paint, the bracket moves up and down through the numerical guidance of the vertical rod 27, and the fan-shaped nozzle 5 is always perpendicular to the surface to be painted. Vertical spraying can improve the uniformity of spraying paint and greatly reduce the splashing of paint.

[0026] Embodiment 5, a painting method proposed by the present invention, using the painting device for building decoration of embodiment 4, specifically comprises the following steps: S1. Arrange the vertical guide mechanism and complete the coordination with the bracket. Specifically, select a suitable number of vertical rods 27 according to the height of the spray painting surface. After the splicing is completed, pass multiple guide sleeves 28 through the vertical rods 27, put one foot into the pedal 26 and step on the pedal 26, so that the base 24 is always pressed on the ground to keep the vertical rod 27 in a vertical state; S2, holding the hand-held rod 12 with one hand and operating the temporary blocking mechanism with the other hand, first move the bracket and the fan-shaped nozzle 5 to the highest point or the lowest point of the surface to be painted by the hand-held rod 12; S3, turn on the paint spraying switch 15, start the paint spraying operation, drive the bracket to move in the vertical direction through the hand-held rod 12, and complete a vertical stroke of paint spraying; S4, operate the temporary blocking mechanism to interrupt the painting, move the vertical guide mechanism to the position required for the next painting stroke, release the temporary blocking mechanism from blocking the hose b13, continue painting and move in the vertical direction, repeat the operation until the painting of all vertical strokes is completed; S5. Remove the vertical guide mechanism, hold the hand-held rod 12, and tighten the support rod 10 through the locking bolt 11. The best state is to make the hand-held rod 12 perpendicular to the connecting plate 2, and align the fan-shaped nozzle 5 at the corner position to spray paint on the blank area.

[0027] In summary, when the present invention is in use, the vertical rod 27 is used to limit the bracket so that the bracket can only move in the vertical direction. The operator only needs to control the up and down of the bracket and simply control the angle of the bracket so that it is roughly facing the surface to be painted, so that the fan-shaped nozzle 5 can always spray paint vertically toward the surface to be painted. Vertical painting helps to improve the uniformity of painting and reduce paint splashing. Combined with the setting of the anti-splash shield 3, it can greatly reduce the splashing of paint and help maintain a good working environment. In addition, the vertical rod 27 and the hand-held rod 12 are both connected in a multi-section splicing manner, which is helpful for carrying after disassembly, taking up little space and having good portability.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A paint spraying device for building decoration, characterized in that: include: A bracket, on which a fan-shaped nozzle (5) is arranged perpendicular to the surface to be painted; A hand-held rod (12) is provided with a cylinder (7) on the top thereof, the cylinder (7) is rotatably connected to the bracket and rotates in a vertical plane, and the top end of the cylinder (7) is connected to the fan-shaped nozzle (5) through a hose a (6); A hose b (13) is connected to the cylinder (7) at one end and connected to the paint spraying equipment after passing through a fixing ring (14) arranged at the bottom of the hand-held rod (12). A paint spraying switch (15) is arranged on the hose b (13); A temporary blocking mechanism, slidably disposed on the hand-held rod (12), used to squeeze the hose b (13) to block the flow of the paint inside; and a vertical guide mechanism, which is supported on the ground and is used to limit the bracket to move in the vertical direction.

2. The paint spraying device for building decoration according to claim 1, characterized in that: The bracket comprises a plurality of U-shaped rods (1) arranged side by side, and a connecting plate (2) connecting the plurality of U-shaped rods (1); a fan-shaped nozzle (5) is arranged on the connecting plate (2) and is vertically oriented toward a surface to be sprayed with paint.

3. The paint spraying device for building decoration according to claim 2 is characterized in that: An anti-splash shield (3) is arranged on the inner side of the bracket, the fan-shaped nozzle (5) is located inside the anti-splash shield (3), and the anti-splash shield (3) is provided with two opposite openings.

4. The paint spraying device for building decoration according to claim 1, characterized in that: Two fixing plates (8) are arranged on the bracket, and two coaxial support rods (10) are arranged on the outer wall of the cylinder (7). The two support rods (10) are rotatably connected to the two fixing plates (8) respectively, and a locking bolt (11) for rotatably pressing against the support rod (10) is arranged on one of the fixing plates (8).

5. The paint spraying device for building decoration according to claim 1, characterized in that: The temporary blocking mechanism comprises a collar (16) sleeved on a hand-held rod (12), two flip plates (19) rotatably arranged on the outer peripheral wall of the collar (16), a clamping plate (20) arranged on opposite end surfaces of the two flip plates (19), and a hand-held rod (21) arranged on the two flip plates (19).

6. The paint spraying device for building decoration according to claim 5, characterized in that: An elastic sheet (22) is disposed on one of the flip plates (19), and an avoidance groove for the elastic sheet (22) to pass through is disposed on the other flip plate (19). A baffle (23) is disposed at the end of the elastic sheet (22), and the baffle (23) abuts against the flip plate (19). The hose b (13) is located in a space formed by the two clamping plates (20) and the elastic sheet (22).

7. The paint spraying device for building decoration according to claim 1, characterized in that: The vertical guide mechanism comprises a base (24), a vertical rod (27) vertically arranged on the base (24), a plurality of guide sleeves (28) arranged on a bracket and sleeved on the vertical rod (27), a flat plate (25) connected to the base (24), and a pedal member (26) arranged at the end of the flat plate (25).

8. A painting method, using the painting device for building decoration according to claim 1, characterized in that: The following steps are involved: S1. Arrange the vertical guide mechanism and complete the coordination with the bracket; S2, holding the hand-held rod (12) with one hand and operating the temporary blocking mechanism with the other hand, first moving the bracket and the fan-shaped nozzle (5) to the highest point or the lowest point of the surface to be painted by using the hand-held rod (12); S3, turning on the paint spraying switch (15), starting the paint spraying operation, driving the bracket to move in the vertical direction through the hand-held rod (12), and completing a vertical stroke of paint spraying; S4, operate the temporary blocking mechanism to interrupt the painting, move the vertical guide mechanism to the position required for the next painting stroke, release the temporary blocking mechanism from blocking the hose b (13), continue painting and move in the vertical direction, and repeat the operation until the painting of all vertical strokes is completed; S5. Remove the vertical guide mechanism, hold the handle (12) by hand, and align the fan-shaped nozzle (5) with the corner position to spray paint on the blank area.

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