Spray gun special for building coating

Abstract

The utility model is applicable to the technical field of spray guns, and provides a special spray gun for architectural coatings, which comprises a spray gun body, a support plate fixedly mounted on the spray gun body, a spray rod rotatably arranged on the bottom surface of the support plate through a pin shaft, a nozzle mounted at one end of the spray rod, and a corrugated hose connected with the output end of the spray gun body. A driving assembly is further arranged on the spray gun body and used for providing power for reciprocating swing of the spray rod, by arranging the supporting plate, the pin shaft, the spray rod, the corrugated hose and the driving assembly, when a worker holds the spray gun body to conduct spraying operation, the driving assembly can drive the spray rod to rotate in a reciprocating mode within a certain angle range, and swing spraying operation of the spray nozzle is achieved; the whole spray gun does not need to be manually swung, and burden on arms of workers in the use process of the spray gun is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of spray guns, in particular to a special spray gun for building coatings. Background Art

[0002] As people's living standards continue to improve, their requirements for housing are also constantly increasing. More and more people choose high-rise buildings with better environments as their living places. Before moving into high-rise buildings, people will decorate their houses to make their internal environment more beautiful and comfortable. When decorating a house, it is necessary to spray paint on the wall. At this time, a spray gun is needed. A spray gun is a device that uses liquid or compressed air to quickly release power, usually used for spraying paint.

[0003] In the prior art, the nozzle of a paint spray gun is usually fixedly installed at the output end of the spray gun. When using the spray gun for spraying, if you want to achieve a large-area spraying operation, you usually need to hold the spray gun and swing it back and forth. Due to the heavy weight of the spray gun, it is easy to cause arm pain in the worker. Therefore, it is necessary to design corresponding technical solutions to solve the existing technical problems. Utility Model Content

[0004] The utility model aims to provide a special spray gun for architectural coatings to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A special spray gun for building paint comprises a spray gun body, a support plate is fixedly mounted on the spray gun body, a spray rod is rotatably arranged on the bottom surface of the support plate through a pin shaft, a nozzle is mounted on one end of the spray rod, and the other end is connected to the output end of the spray gun body through a corrugated hose, and a drive assembly is also arranged on the spray gun body, and the drive assembly is used to provide power for the reciprocating swing of the spray rod.

[0007] As a further solution of the utility model: the bottom surface of the support plate is also provided with an arc-shaped groove, and the arc-shaped groove is matched with the outer side wall of the spray gun body.

[0008] As a further solution of the utility model: the driving assembly includes a turntable rotatably arranged outside the spray gun body, a power unit driving the turntable to rotate, and a fixed rod fixedly installed on the side of the spray rod, the fixed rod is in an "L"-shaped structure, and a strip hole is opened on the cross bar of the fixed rod. A round rod is fixedly arranged at an eccentric position on the end face of the turntable, and the round rod is slidably arranged in the strip hole.

[0009] As a further solution of the utility model: the power unit includes a drive shaft, a sealed bearing and rotating blades. The drive shaft passes through the spray gun body and is rotatably arranged through the sealed bearing. One end of the drive shaft is arranged outside the spray gun body and is fixedly connected to the turntable. A plurality of rotating blades are installed on the rod body of the drive shaft located inside the spray gun body.

[0010] As a further solution of the utility model: the end of the driving shaft passing through the outside of the support plate is also threadedly mounted with a tightening knob, and a brake ring is fixedly arranged on the bottom surface of the tightening knob.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model provides a support plate, a pin shaft, a spray rod, a corrugated hose and a drive assembly. When a worker holds the spray gun body to perform a spraying operation, the drive assembly can drive the spray rod to rotate back and forth within a certain angle range and realize the swinging spraying operation of the nozzle. There is no need to manually swing the entire spray gun, thereby reducing the burden on the worker's arm during the use of the spray gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The overall structure diagram of a special spray gun for building coatings is shown in FIG.

[0014] Figure 2 It is a partial stereoscopic diagram of a spray gun specially used for building coatings;

[0015] Figure 3 for Figure 2 Another perspective stereogram;

[0016] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0017] In the figure: 1. spray gun body; 2. support plate; 3. spray rod; 4. nozzle; 5. corrugated hose; 6. arc groove; 7. turntable; 8. fixing rod; 9. strip hole; 10. round rod; 11. drive shaft; 12. sealed bearing; 13. rotating fan blade; 14. tightening knob; 15. brake ring. DETAILED DESCRIPTION

[0018] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0019] Example 1

[0020] See also Figure 1-4A special spray gun for building paint comprises a spray gun body 1, a support plate 2 is fixedly mounted on the spray gun body 1, a spray rod 3 is arranged on the bottom surface of the support plate 2 through a pin shaft, a nozzle 4 is arranged on one end of the spray rod 3, and the other end is connected to the output end of the spray gun body 1 through a corrugated hose 5. A driving assembly is also arranged on the spray gun body 1, and the driving assembly is used to provide power for the reciprocating swing of the spray rod 3. By arranging the support plate 2, the pin shaft, the spray rod 3, the corrugated hose 5 and the driving assembly, when the worker holds the spray gun body 1 for spraying, the driving assembly can drive the spray rod 3 to reciprocate within a certain angle range and realize the swinging spraying operation of the nozzle 4, without manually swinging the entire spray gun, thereby reducing the burden on the worker's arm during the use of the spray gun.

[0021] The bottom surface of the support plate 2 is also provided with an arc groove 6 , which is matched with the outer wall of the spray gun body 1 . The provision of the arc groove 6 further improves the stability of the connection between the support plate 2 and the spray gun body 1 .

[0022] Specifically, the driving assembly includes a turntable 7 rotatably arranged outside the spray gun body 1, a power unit driving the turntable 7 to rotate, and a fixed rod 8 fixedly installed on the side of the spray rod 3. The fixed rod 8 is an "L"-shaped structure, and a strip hole 9 is opened on the cross bar of the fixed rod 8. A round rod 10 is fixedly arranged at an eccentric position on the end face of the turntable 7, and the round rod 10 is slidably arranged in the strip hole 9.

[0023] Preferably, the power unit includes a drive shaft 11, a sealed bearing 12 and a rotating fan blade 13. The drive shaft 11 passes through the spray gun body 1 and is rotatably arranged through the sealed bearing 12. One end of the drive shaft 11 that is arranged outside the spray gun body 1 is fixedly connected to the turntable 7. A plurality of rotating fan blades 13 are installed on the rod body of the drive shaft 11 located inside the spray gun body 1. The setting of the power unit does not require an additional driving element to drive the turntable 7 to rotate, thereby reducing production costs.

[0024] Specifically, when a worker holds the spray gun and pulls the trigger, the flow of high-speed gas in the spray gun body 1 can drive the rotating fan blades 13 to rotate, and make the driving shaft 11 rotate continuously. The driving shaft 11 drives the turntable 7 to rotate, and makes the round rod 10 on the turntable 7 to make eccentric motion. When the round rod 10 slides in the strip hole 9 on the fixed rod 8, it can drive the spray rod 3 to reciprocate around the pin shaft, thereby realizing the reciprocating swing of the nozzle 4.

[0025] Example 2

[0026] This embodiment is improved on the basis of embodiment 1, specifically:

[0027] See also Figure 2 and Figure 4The end of the driving shaft 11 passing through the outside of the support plate 2 is also threadedly installed with a fastening knob 14, and a brake ring 15 is fixedly arranged on the bottom surface of the fastening knob 14. The setting of the fastening knob 14 can brake the rotation of the driving shaft 11. When swing spraying is not required, the fastening knob 14 can be rotated until the brake ring 15 avoids conflict with the support plate 2, so as to fix the spray rod 3. It has the advantages of simple operation, convenience and speed, and further improves the practicality of the spray gun.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A spray gun for architectural coatings, comprising a spray gun body (1), characterized in that: A support plate (2) is fixedly mounted on the spray gun body (1); a spray rod (3) is rotatably mounted on the bottom surface of the support plate (2) via a pin shaft; a nozzle (4) is mounted on one end of the spray rod (3); and the other end is connected to the output end of the spray gun body (1) via a corrugated hose (5); a drive assembly is also mounted on the spray gun body (1), and the drive assembly is used to provide power for the reciprocating swing of the spray rod (3).

2. The special spray gun for architectural coatings according to claim 1, characterized in that: The bottom surface of the support plate (2) is also provided with an arc-shaped groove (6), and the arc-shaped groove (6) is matched with the outer side wall of the spray gun body (1).

3. The special spray gun for architectural coatings according to claim 1, characterized in that: The driving assembly comprises a turntable (7) rotatably arranged outside the spray gun body (1), a power unit driving the turntable (7) to rotate, and a fixed rod (8) fixedly installed on the side of the spray rod (3); the fixed rod (8) is in an "L"-shaped structure; a strip hole (9) is provided on the cross bar of the fixed rod (8); a round rod (10) is fixedly arranged at an eccentric position on the end surface of the turntable (7); and the round rod (10) is slidably arranged in the strip hole (9).

4. The special spray gun for architectural coatings according to claim 3, characterized in that: The power unit comprises a driving shaft (11), a sealed bearing (12) and a rotating blade (13); the driving shaft (11) passes through the spray gun body (1) and is rotatably arranged through the sealed bearing (12); one end of the driving shaft (11) passing through the outside of the spray gun body (1) is fixedly connected to the turntable (7); and a plurality of rotating blades (13) are installed on a rod body of the driving shaft (11) located inside the spray gun body (1).

5. The special spray gun for architectural coatings according to claim 4, characterized in that: The end of the driving shaft (11) passing through the support plate (2) is also threadedly mounted with a tightening knob (14), and a brake ring (15) is fixedly arranged on the bottom surface of the tightening knob (14).

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