Spray gun with water cooling function

Abstract

The utility model discloses a spray gun with a water cooling function. The device comprises an outer pipe, a cover body arranged at one end of the outer pipe, a material mixing head arranged at the other end of the outer pipe, a fixed seat arranged on the material mixing head, a direction adjusting head arranged in the fixed seat and butted with the material mixing head, a collision head extending into the fixed seat and matched with the direction adjusting head, a cooling water outlet pipeline, a cooling water inlet pipeline, a liquid inlet pipeline and an air inlet pipeline, the cooling water outlet pipeline and the cooling water inlet pipeline are arranged on the cover body and extend into the outer pipe; the liquid inlet pipeline and the air inlet pipeline respectively penetrate through the cover body and the outer pipe and are matched with the material mixing head; the whole outer pipe is of a hollow tubular structure, the cooling water inlet pipeline extends into the end, close to the mixing head, in the outer pipe, and the cooling water outlet pipeline extends into the end, close to the cover body, in the outer pipe. According to the spray gun, spraying raw materials flowing through the liquid inlet pipeline can be cooled, and the spraying quality during operation of the spray gun is improved.

Description

Technical Field

[0001] The utility model relates to a nozzle, in particular to a spray gun with a water cooling function. Background Art

[0002] In order to increase the use characteristics of the workpiece, a functional layer is usually sprayed on the surface of the workpiece. After the coating is attached, the workpiece's anti-wear, anti-corrosion and other functions are effectively increased. Therefore, the spraying process is widely used in aerospace, energy, chemical and other fields.

[0003] When spraying, it is usually done on a spray gun. During spraying, liquid spray materials and compressed air are mixed and sprayed out on the spray gun. Since some of the liquid spray materials that have just been produced have a high temperature, they are directly sprayed on the workpiece, affecting the spraying effect of the spray materials on the workpiece, causing trouble for manufacturers. Utility Model Content

[0004] Based on this, it is necessary to provide a spray gun with a water cooling function to address the deficiencies in the prior art.

[0005] The technical solution of the utility model is: a spray gun with a water cooling function, which comprises an outer tube, a cover body installed at one end of the outer tube, a mixing head installed at the other end of the outer tube, a fixed seat installed on the mixing head, a direction-adjusting head installed in the fixed seat and docking with the mixing head, a collision head extending into the fixed seat and installed in cooperation with the direction-adjusting head, a cooling water outlet pipe, a cooling water inlet pipe, a liquid inlet pipe and an air inlet pipe, the cooling water outlet pipe and the cooling water inlet pipe are installed on the cover body and extend into the interior of the outer tube, the liquid inlet pipe and the air inlet pipe respectively pass through the cover body and the outer tube and are installed in cooperation with the mixing head; the outer tube is arranged in a hollow tubular structure as a whole, the cooling water inlet pipe extends into one end of the outer tube close to the mixing head, and the cooling water outlet pipe extends into one end of the outer tube close to the cover body.

[0006] In one embodiment, the mixing head is provided with a first docking section, a central section, a second docking section and a nozzle, the first docking section and the second docking section are respectively connected to two ends of the central section, the first docking section of the mixing head is fixedly mounted on the outer tube, and the fixing seat is fixedly mounted on the second docking section of the mixing head.

[0007] In one embodiment, the center section is provided with a first connection port and a second connection port at one end close to the first docking section, and a first card slot is provided at one end of the center section close to the second docking section, and the mixing head is further provided with a second card slot at the center position of the bottom of the first card slot, and the mixing head is also provided with a first channel and a second channel, the first channel connects the first connection port and the first card slot, and the second channel connects the second connection port and the second card slot.

[0008] In one of the embodiments, the liquid inlet pipe is installed in cooperation with the second connecting port, and the air inlet pipe is installed in cooperation with the first connecting port.

[0009] In one embodiment, the nozzle includes a main body, a connecting head connected to the middle of one end of the main body, and a nozzle connected to the other end of the main body. The main body and the connecting head are arranged in an inverted T shape. A third channel and a fourth channel are provided on the nozzle. The third channel connects the second channel and the nozzle, and the fourth channel connects the first channel.

[0010] In one embodiment, the fixing seat is provided with a limiting groove, the groove wall of the limiting groove is provided with a stepped surface, the bottom of the fixing seat is provided with a discharge port, the outer side of the adjusting head is provided with a clamping protrusion, and the clamping protrusion on the outer side of the adjusting head is clamped between the stepped surface and the second docking section.

[0011] In one of the embodiments, a steering block is provided inside the steering head, and a plurality of guide grooves are provided on the steering block. The guide grooves are distributed in a spiral shape around the center of the clamping protrusion.

[0012] The beneficial effect of the spray gun with water cooling function of the utility model is that: by arranging a cooling water outlet pipe and a cooling water inlet pipe, the cooling water outlet pipe and the cooling water inlet pipe are installed on the cover body and extend into the inside of the outer pipe, the cooling water outlet pipe is connected to the external water tank through a first water pump, and the cooling water inlet pipe is connected to the external water tank through a second water pump, so that the cooling water can circulate inside the outer pipe, the spraying raw material flowing through the liquid inlet pipe is cooled, and the spraying quality during the operation of the spray gun is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the spray gun with water cooling function of the utility model;

[0014] Figure 2 for Figure 1 Exploded view of the spray gun with water cooling shown;

[0015] Figure 3 for Figure 2 A magnified view of part A;

[0016] Figure 4 for Figure 1 A cross-sectional view of a spray gun with water cooling is shown;

[0017] Figure 5 for Figure 1 A schematic diagram of the structure of a mixing head of the spray gun shown;

[0018] Figure 6 for Figure 1 A schematic structural diagram of a fixing seat of the spray gun shown;

[0019] Figure 7 for Figure 1 A schematic diagram of the structure of the steering head of the spray gun shown;

[0020] Figure 8 for Figure 7 Schematic diagram of the internal structure of the steering head shown. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0027] See also Figures 1 to 8 The utility model provides a spray gun with a water cooling function, comprising an outer tube 10, a cover body 60 installed at one end of the outer tube 10, a mixing head 20 installed at the other end of the outer tube 10, a fixing seat 30 installed on the mixing head 20, a turning head 40 installed in the fixing seat 30 and docking with the mixing head 20, a collision head 50 extending into the fixing seat 30 and installed in cooperation with the turning head 40, a cooling water outlet pipe 71, a cooling water inlet pipe 72, a liquid inlet pipe 74 and an air inlet pipe 73, wherein the cooling water outlet pipe 71 and the cooling water inlet pipe 72 are installed on the cover body 60 and extend into the interior of the outer tube 10, and the liquid inlet pipe 74 and the air inlet pipe 73 respectively pass through the cover body 60 and the outer tube 10 and are installed in cooperation with the mixing head 20.

[0028] The outer tube 10 is in a hollow tubular structure as a whole. The cooling water inlet pipe 72 extends into the end of the outer tube 10 near the mixing head 20, and the cooling water outlet pipe 71 extends into the end of the outer tube 10 near the cover 60. The cooling water outlet pipe 71 is connected to the external water tank through the first water pump, and the cooling water inlet pipe 72 is connected to the external water tank through the second water pump. When working, the first water pump and the second water pump are started at the same time, the second water pump injects the cooling water in the water tank into the outer tube 10 from the cooling water inlet pipe 72, and the first water pump draws the water in the outer tube 10 from the cooling water outlet pipe. Since the cooling water inlet pipe 72 and the cooling water outlet pipe 71 extend into the two ends of the outer tube 10 respectively, the cooling water in the outer tube 10 fills most of the area in the outer tube 10 from the mixing head 20 to the cover 60, increasing the contact area between the cooling water and the liquid inlet pipe 74, and improving the cooling effect.

[0029] The mixing head 20 is provided with a first docking section 22, a central section 21, a second docking section 23 and a nozzle 24, wherein the first docking section 22 and the second docking section 23 are respectively connected to two ends of the central section 21, and the central section 21 is provided with a first connecting port 211 and a second connecting port 212 at one end close to the first docking section 22, and a first card slot 213 is provided at one end of the central section 21 close to the second docking section 23, and the mixing head 20 is further provided with a second card slot 214 at the center position of the bottom of the first card slot 213. In addition, the mixing head 20 is also provided with a first channel 215 and a second channel 216, wherein the first channel 215 connects the first connecting port 211 and the first card slot 213, and the second channel 216 connects the second connecting port 212 and the second card slot 214.

[0030] The nozzle 24 includes a main body 241, a connecting head 242 connected to the middle of one end of the main body 241, and a nozzle 245 connected to the other end of the main body 241. The main body 241 and the connecting head 242 are arranged in an inverted T shape. A third channel 243 and a fourth channel 244 are provided on the nozzle 24. The third channel 243 connects the second channel 216 and the nozzle 245, and the fourth channel 244 connects the first channel 215.

[0031] The fixing seat 30 is provided with a limiting groove 31, a stepped surface 32 is provided on the groove wall of the limiting groove 31, a discharge port 33 is provided at the bottom of the fixing seat 30, a clamping protrusion 41 is provided on the outer side of the adjusting head 40, an adjusting block 42 is provided inside the adjusting head 40, and a plurality of guide grooves 421 are provided on the adjusting block 42, and the guide grooves 421 are distributed in a spiral shape around the center of the clamping protrusion 41.

[0032] During assembly, the first docking section 22 of the mixing head 20 is fixed to the outer tube 10 by threaded installation or other means, the fixing seat 30 is fixed to the second docking section 23 of the mixing head 20 by threaded installation or other means, the clamping protrusion 41 on the outside of the adjustment head 40 is clamped between the stepped surface 32 and the second docking section 23, the liquid inlet pipe 74 is installed in cooperation with the second connecting port 212 by threaded installation or other means, and the air inlet pipe 73 is installed in cooperation with the first connecting port 211 by threaded installation or other means.

[0033] When in use, start the first water pump and the second water pump to circulate the cooling water in the outer tube 10, and the high-pressure spraying raw material flows in from the liquid inlet pipe 74, the second connecting port 212, the second channel 216, and the third channel 243 and is ejected from the nozzle 245. The high-pressure gas flows in from the air inlet pipe 73, the first connecting port 211, and the first channel 215 and flows out from the fourth channel 244 to achieve gas-liquid mixing. Under the guidance of the spiral guide groove 421, the gas-liquid mixture is ejected from the discharge port 33 at a certain angle. By adjusting the position of the collision head 50, the outer side of the collision head 50 further guides the gas-liquid mixture ejected from the discharge port 33 at an angle.

[0034] The beneficial effect of the spray gun with water cooling function of the utility model is that: by arranging a cooling water outlet pipe 71 and a cooling water inlet pipe 72, the cooling water outlet pipe 71 and the cooling water inlet pipe 72 are installed on the cover body 60 and extend into the outer tube 10, the cooling water outlet pipe 71 is connected to the external water tank through a first water pump, and the cooling water inlet pipe 72 is connected to the external water tank through a second water pump, so that the cooling water can circulate inside the outer tube 10, the spraying material flowing through the liquid inlet pipe 74 is cooled, and the spraying quality during the spray gun operation is improved.

[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A spray gun with water cooling function, characterized in that: It includes an outer tube, a cover body installed at one end of the outer tube, a mixing head installed at the other end of the outer tube, a fixed seat installed on the mixing head, an adjusting head installed in the fixed seat and docked with the mixing head, a collision head extending into the fixed seat and installed in cooperation with the adjusting head, a cooling water outlet pipe, a cooling water inlet pipe, a liquid inlet pipe and an air inlet pipe, wherein the cooling water outlet pipe and the cooling water inlet pipe are installed on the cover body and extend into the outer tube, and the liquid inlet pipe and the air inlet pipe pass through the cover body and the outer tube respectively and are installed in cooperation with the mixing head; the outer tube is arranged in a hollow tubular structure as a whole, the cooling water inlet pipe extends into the end of the outer tube close to the mixing head, and the cooling water outlet pipe extends into the end of the outer tube close to the cover body.

2. The spray gun with water cooling function according to claim 1, characterized in that: The mixing head is provided with a first docking section, a central section, a second docking section and a nozzle, wherein the first docking section and the second docking section are respectively connected to two ends of the central section, the first docking section of the mixing head is fixedly mounted on the outer tube, and the fixing seat is fixedly mounted on the second docking section of the mixing head.

3. The spray gun with water cooling function according to claim 2, characterized in that: The center section is provided with a first connection port and a second connection port at one end close to the first docking section, and a first card slot is provided at one end of the center section close to the second docking section. The mixing head is further provided with a second card slot at the center position of the bottom of the first card slot. The mixing head is also provided with a first channel and a second channel. The first channel connects the first connection port and the first card slot, and the second channel connects the second connection port and the second card slot.

4. The spray gun with water cooling function according to claim 3, characterized in that: The liquid inlet pipe is installed in cooperation with the second connecting port, and the air inlet pipe is installed in cooperation with the first connecting port.

5. The spray gun with water cooling function according to claim 4, characterized in that: The nozzle includes a main body, a connecting head connected to the middle of one end of the main body, and a nozzle connected to the other end of the main body. The main body and the connecting head are arranged in an inverted T shape. A third channel and a fourth channel are provided on the nozzle. The third channel connects the second channel and the nozzle, and the fourth channel connects the first channel.

6. The spray gun with water cooling function according to claim 2, characterized in that: The fixing seat is provided with a limiting groove, a step surface is provided on the groove wall of the limiting groove, a discharge port is provided at the bottom of the fixing seat, a clamping protrusion is provided on the outer side of the adjustment head, and the clamping protrusion on the outer side of the adjustment head is clamped between the step surface and the second docking section.

7. The spray gun with water cooling function according to claim 6, characterized in that: A steering block is arranged inside the steering head, and a plurality of guide grooves are arranged on the steering block. The guide grooves are distributed in a spiral shape around the center of the clamping protrusion.

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