Self-mixing type spray gun

Abstract

The utility model relates to the technical field of spraying equipment, and provides a self-mixing type spray gun which comprises a spray gun pipe and a spray gun handle seat, the tail end of the spray gun pipe is connected with at least two suction nozzles, and the head end of the spray gun pipe is provided with a spraying nozzle; the material suction nozzle is connected with a material suction pipe; a material mixing section is arranged in the spray gun pipe, and a spiral blade is arranged on the inner wall of the spray gun pipe in the area of the material mixing section; an air inlet channel communicated with the spray gun pipe is formed in the spray gun handle seat; and an air inlet nozzle communicated with the air inlet channel is further fixedly arranged on the spray gun handle seat. Therefore, according to the utility model, the tail end of the spray gun pipe is connected with the plurality of material suction nozzles, so that various spraying materials can be sucked at one time. The mixing section is arranged in the pipe, and spraying is directly carried out after mixing is completed. And the pre-mixing procedure is omitted, the spraying efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of spraying equipment, and in particular relates to a self-mixing spray gun. Background Technology

[0002] According to the fire prevention and extinguishing requirements of the mine, it is necessary to take shotcrete sealing measures for the coal pillars in the goaf-side tunneling roadways. Usually, the workers stand on the coal pillars in the goaf-side tunneling roadways to carry out the shotcrete sealing operation.

[0003] Since spray paints are typically of two types, they need to be mixed before spraying. The current method involves pre-mixing the paints and then using a spray pump and old-fashioned spray guns for application. This results in high labor intensity and low work efficiency.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] To address the aforementioned shortcomings, this utility model provides a self-mixing spray gun, which solves the technical problems of multiple spraying steps, low spraying efficiency, and high labor intensity.

[0006] To solve the above problems, this utility model provides a self-mixing spray gun, including a spray gun tube and a spray gun holder; the tail end of the spray gun tube is connected to at least two suction nozzles, and the head end is provided with a spray nozzle; the suction nozzles are connected to suction pipes; the spray gun tube has a mixing section inside, and the inner wall of the spray gun tube located in the mixing section area is provided with spiral blades.

[0007] The spray gun holder has an air inlet channel that connects to the spray gun tube; an air inlet nozzle that connects to the air inlet channel is also fixed on the spray gun holder.

[0008] According to the self-mixing spray gun of this utility model, the spray gun tube is also inclinedly connected to the spray air pipe; the angle between the spray air pipe and the spray gun tube does not exceed 35°.

[0009] According to the self-mixing spray gun of this utility model, the connection position between the spray air pipe and the spray gun pipe is located between the mixing section and the spray nozzle.

[0010] According to the self-mixing spray gun of this utility model, the mixing section area of ​​the spray gun tube is connected to a mixing air pipe; the mixing air pipe is tangentially connected to the spray gun tube.

[0011] According to the self-mixing spray gun of this utility model, the spray gun holder is provided with two air outlet pipes that connect to the air inlet; the two air outlet pipes are respectively connected to the spraying air pipe and the mixing air pipe through the air guide pipe.

[0012] According to the self-mixing spray gun of this utility model, the air guide tube is a flexible tube.

[0013] According to the self-mixing spray gun of this utility model, a partition plate is also provided in the air inlet; a pressing rod is fixedly connected to one side of the partition plate, and a return spring is connected to the other end; a rod groove for movably passing through the pressing rod and a plate groove for accommodating the partition plate are opened on the inner wall of the spray gun holder; a stop sleeve communicating with the plate groove is fixedly provided on the outer wall of the spray gun holder, and the stop sleeve is provided with the return spring.

[0014] According to the self-mixing spray gun of this utility model, the tail end of the spray gun tube is connected to a temporary storage tank, and the two suction nozzles are connected to the temporary storage tank.

[0015] According to the self-mixing spray gun of this utility model, the temporary storage tank is tangentially connected to the premixed gas pipe, and the premixed gas pipe is connected to the air inlet.

[0016] According to the self-mixing spray gun of this utility model, the two suction nozzles are connected to the temporary storage tank near the top.

[0017] In summary, this invention, by connecting multiple suction nozzles to the tail end of the spray gun tube, can draw in multiple types of spray paint at once. A mixing section is set inside the tube, allowing for direct spraying after mixing. This eliminates the need for pre-mixing, improving spraying efficiency and reducing labor intensity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0019] Figure 2 yes Figure 1 Schematic diagram of the structure of region A in the middle;

[0020] Figure 3 yes Figure 1 Schematic diagram of the structure in the middle BB direction;

[0021] Figure 4 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0022] In the diagram: 1-Spray gun tube, 11-Mixing section, 12-Spiral blade, 13-Spray nozzle, 14-Suction nozzle, 141-Suction pipe; 2-Spray gun holder, 21-Air inlet, 22-Air outlet, 23-Air inlet, 24-Air guide pipe; 3-Spraying air pipe, 4-Mixing air pipe, 5-Stop sleeve, 51-Reset spring, 52-Divider plate, 53-Pressing rod; 6-Temporary storage tank, 61-Premixed air pipe. Detailed Implementation

[0023] See Figure 1This utility model provides a self-mixing spray gun, including a spray gun tube 1 and a spray gun holder 2; the tail end of the spray gun tube 1 is connected to at least two suction nozzles 14, and the head end is provided with a spray nozzle 13; the suction nozzles 14 are connected to suction tubes 141.

[0024] Each suction pipe 141 is connected to a spray gun barrel, and this utility model can suck two or more spray materials into the spray gun pipe 1.

[0025] The spray gun tube 1 has a mixing section 11 inside, and a spiral blade 12 is fixed on the inner wall of the spray gun tube 1 located in the mixing section 11 area. Under the action of airflow, the sprayed material is guided by the spiral blade 12 in the mixing section 11, moves forward in a spiral posture, and is evenly mixed, and finally sprayed out from the suction nozzle 14.

[0026] The spray gun holder 2 is provided with an air inlet 21 that communicates with the spray gun tube 1; an air inlet 23 that communicates with the air inlet 21 is also fixed on the spray gun holder 2.

[0027] Optionally, the air inlet 23 of this invention is connected to a compressed air source via a vent pipe, which introduces the compressed gas into the spray gun tube 1 to complete the mixing and spraying of the coating material. Preferably, the vent pipe is a flexible pipe, which facilitates the spraying operation for the operator.

[0028] As one embodiment, the spray gun tube 1 is also inclinedly connected to the spray air pipe 3; the angle between the spray air pipe 3 and the spray gun tube 1 does not exceed 35°. After the compressed gas enters the spray gun tube 1 through the spray air pipe 3, a negative pressure is generated at the suction nozzle 14, thereby drawing the spray paint into the spray gun tube 1. Then, the spray paint is mixed in the mixing section 11 and sprayed out.

[0029] Preferably, the connection between the spray nozzle 3 and the spray gun tube 1 is located between the mixing section 11 and the spray nozzle 13; when started, compressed gas is first sprayed out from the spray nozzle 13, and then the gas in the spray gun tube 1 is extracted, thereby generating negative pressure to complete the mixing and spraying action.

[0030] As one embodiment, the mixing section 11 of the spray gun pipe 1 is connected to a mixing air pipe 4; combined with Figure 3 The mixing air pipe 4 is tangentially connected to the spray gun pipe 1; compressed air is blown tangentially from the mixing section 11 through the mixing air pipe 4, and then guided by the spiral blades 12, flows along the inner wall of the spray gun pipe 1 in a spiral manner. This can blow up the spray paint, making it fully mixed, and blow the spray paint towards the spray nozzle 13.

[0031] Optionally, the position where the mixing air pipe 4 is tangentially connected to the spray gun pipe 1 is located between the gaps of two adjacent spiral lines of the spiral blade 12.

[0032] As one embodiment, the spray gun holder 2 is provided with two air outlet pipes 22 that connect to the air inlet 21; the two air outlet pipes 22 are respectively connected to the spraying air pipe 3 and the mixing air pipe 4 through the air guide pipe 24; by concentrating the weight in the area of ​​the spray gun holder 2, a longer spray gun pipe 1 can be used, which makes it easier for the operator to stand on the ground to carry out long-distance spraying operations and improves safety.

[0033] Preferably, the air duct 24 is a flexible tube, which is lightweight and not easily damaged.

[0034] See Figure 2 As one embodiment, the air intake duct 21 of this utility model is further provided with a partition plate 52; a pressing rod 53 is fixedly connected to one side of the partition plate 52, and a return spring 51 is connected to the other end; a rod groove for movably passing through the pressing rod 53 and a plate groove for accommodating the partition plate 52 are opened on the inner wall of the spray gun handle 2; a stop sleeve 5 communicating with the plate groove is fixedly provided on the outer wall of the spray gun handle 2, and the stop sleeve 5 is provided with the return spring 51;

[0035] The operator can press the lever 53 with their finger to control the opening of the partition plate 52 to the ventilation chamber 51, thereby adjusting the intensity of the compressed airflow in the air intake duct 21 to achieve the appropriate spraying force.

[0036] Even better, the end of the pressing rod 53 extending out of the rod groove is fixedly connected to the pressing head; the pressing head is hemispherical; which facilitates the pressing operation of the operator.

[0037] See Figure 4 In one embodiment, the tail end of the spray gun tube 1 is connected to a temporary storage tank 6, and the two suction nozzles 14 are connected to the temporary storage tank 6. The spray paint is first sucked into the temporary storage tank 6 and then into the spray gun tube 1. The spray paint can be pre-mixed in the temporary storage tank 6 to improve the thoroughness of mixing. At the same time, a certain amount of spray paint can be retained in the temporary storage tank 6, so that when performing small-area spraying operations, the material cylinder does not need to be connected, which facilitates replenishment and other operations.

[0038] Preferably, the two suction nozzles 14 are connected to the top of the temporary storage tank 6 to prevent the paint from flowing back.

[0039] Furthermore, the temporary storage tank 6 is tangentially connected to the premixed air pipe 61, which is connected to the air inlet 21. During the spraying operation, compressed air can be introduced from the premixed air pipe 61 to premix the spray paint in the temporary storage tank 6.

[0040] In summary, this utility model provides a self-mixing spray gun that can draw in multiple types of paint at once by connecting multiple suction nozzles to the tail end of the spray gun tube. A mixing section is set inside the tube, allowing direct spraying after mixing. This eliminates the need for pre-mixing, improves the efficiency of spraying operations, and reduces labor intensity.

[0041] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A self-compounding spray gun characterized by, The spray gun comprises a spray gun pipe and a spray gun handle; the tail end of the spray gun pipe is connected with at least two suction nozzles, and the head end is provided with a spraying nozzle; the suction nozzles are connected with suction pipes; the spray gun pipe is provided with a mixing section, and the inner wall of the spray gun pipe in the mixing section is provided with spiral blades; The spray gun handle is provided with an air inlet channel connected with the spray gun pipe; and the spray gun handle is further provided with an air inlet nozzle connected with the air inlet channel.

2. The self-mixing lance according to claim 1, characterized in that The spray gun pipe is further provided with an inclined material spraying air pipe; the included angle between the material spraying air pipe and the spray gun pipe is not more than 35°.

3. The self-mixing lance according to claim 2, characterized in that The connection position between the material spraying air pipe and the spray gun pipe is located between the mixing section and the spraying nozzle.

4. The self-mixing lance according to claim 2, characterized in that The mixing section of the spray gun pipe is connected with a mixing air pipe; and the mixing air pipe is tangentially connected with the spray gun pipe.

5. The self-mixing lance according to claim 4, characterized in that The spray gun handle is provided with two air outlet pipes connected with the air inlet channel; the two air outlet pipes are respectively connected with the material spraying air pipe and the mixing air pipe through air guide pipes.

6. The self-mixing lance according to claim 5, characterized in that The air guide pipes are flexible pipes.

7. Self-mixing lance according to any one of claims 1 to 6, characterized in that The air inlet channel is further provided with a partition plate; one side of the partition plate is fixedly connected with a pressing rod, and the other end is connected with a return spring; the inner wall of the spray gun handle is provided with a rod groove through which the pressing rod is movably arranged and a plate groove capable of accommodating the partition plate; the outer wall of the spray gun handle is fixedly provided with a stop sleeve connected with the plate groove, and the stop sleeve is provided with the return spring.

8. The self-mixing lance according to claim 7, characterized in that The tail end of the spray gun pipe is connected with a temporary storage barrel, and the two suction nozzles are connected with the temporary storage barrel.

9. The self-mixing lance according to claim 8, characterized in that The temporary storage barrel is tangentially connected with a premixing air pipe, and the premixing air pipe is connected with the air inlet channel.

10. The self-mixing lance according to claim 8, characterized in that The two suction nozzles are connected at a position close to the top of the temporary storage barrel.

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