Plastic spray gun with flat nozzle

Abstract

This utility model discloses a plastic spray gun with a flat nozzle, including a gun body, a handle, and a nozzle. The handle is located on the gun body, and the nozzle is connected to one end of the gun body. The nozzle orifice of the nozzle has a flat structure. A gun barrel is provided at one end of the gun body, and the nozzle is detachably connected to the gun barrel. A movable block is provided on the gun barrel, which can move along the side wall of the gun barrel. When the movable block moves to a position close to the nozzle, the nozzle is fixed to the gun barrel. When the movable block moves to a position away from the nozzle, the nozzle can be detached from the gun barrel. An oxyacetylene tube is connected to the movable block, and the movable block has a cavity and multiple oxyacetylene nozzles, which are located on the side wall of the cavity. This application has the advantage of facilitating the replacement and maintenance of the nozzle.

Description

Technical Field

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

[0002] Currently, with the rapid development of industrial technology, nylon plastic spraying technology is gradually being applied to production. It is mainly used to spray a layer of nylon or plastic onto the surface of metal materials such as steel and non-metallic materials to achieve properties such as wear resistance, corrosion resistance, oxidation resistance, and electrical insulation for the surface of parts. This spraying process can produce a smooth and aesthetically pleasing coating in various colors, and also serves as an effective surface decoration. Existing spraying methods include sprinkling, spraying, and electrostatic spraying. Thermal spraying, using an oxy-acetylene flame, has the advantages of not requiring repeated heating of the workpiece and high production efficiency.

[0003] The nozzles of existing nylon modified plastic spray guns are inconvenient to replace, and the nozzles are easily damaged at high temperatures or clogged by powder, affecting the normal use of the spray gun and making nozzle maintenance very inconvenient. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a plastic spray gun with a flat nozzle.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a plastic spray gun with a flat nozzle, comprising a gun body, a handle, and a nozzle. The handle is located on the gun body, and the nozzle is connected to one end of the gun body. The nozzle orifice of the nozzle has a flat structure. A gun barrel is provided at one end of the gun body, and the nozzle is detachably connected to the gun barrel. A movable block is provided on the gun barrel, which can move along the side wall of the gun barrel. When the movable block moves to a position close to the nozzle, the nozzle is fixed to the gun barrel. When the movable block moves to a position away from the nozzle, the nozzle can be detached from the gun barrel. An oxyacetylene tube is connected to the movable block, and the movable block has a cavity and multiple oxyacetylene nozzles, which are located on the side wall of the cavity.

[0007] Furthermore, a connecting ring is provided at one end of the barrel, and an extension ring is provided on the nozzle. The extension ring is fitted onto the connecting ring, and a protruding ring is provided on the inner wall of the extension ring.

[0008] Furthermore, a positioning block is provided at one end of the barrel, and a positioning groove corresponding to the positioning block is provided on the extension ring.

[0009] Furthermore, the positioning block is provided with a first slot, and a rotating rod is provided in the first slot. The rotating rod is rotatably connected to the inner wall of the first slot. One end of the rotating rod is provided with a first fixing block, and the extension ring is provided with a first fixing slot corresponding to the first fixing block.

[0010] Furthermore, the barrel is provided with a second slot, the rotating rod extends into the second slot, the rotating rod is provided with a protrusion, the movable block is provided with a push block, and the push block is inserted into the second slot.

[0011] Furthermore, the barrel sidewall is provided with a mounting groove, the mounting groove is provided with a guide rail, the guide rail is provided with a guide groove, the movable block is provided with a guide block, the guide block is inserted into the guide groove and can move within the guide groove.

[0012] Furthermore, a connecting block is provided on the side wall of the guide rail, a first movable groove is provided on the connecting block, a second fixed block is provided in the first movable groove, a first spring is provided on the second fixed block, one end of the first spring is fixed to the inner wall of the first movable groove, and a second fixed groove is provided on the guide block corresponding to the second fixed block.

[0013] Furthermore, the movable block is provided with a through cavity, which communicates with the second fixed groove, and a first push rod is provided inside the through cavity; one end of the first push rod is provided with a push plate, and a second spring is provided on the push plate; the side wall of the first movable groove is provided with a groove corresponding to the push plate.

[0014] Furthermore, a second movable groove is provided on the side wall of the guide groove, a fixed rod is provided in the second movable groove, and a third fixed groove is provided on the second fixed block.

[0015] Furthermore, a movable cavity is provided on the side wall of the guide groove, which is located at one end of the second movable groove. A connecting rod is provided inside the movable cavity, which is connected to the fixed rod. A second push rod is provided on the connecting rod, which passes through the movable cavity. A third spring is also provided on the connecting rod, which abuts against the inner wall of the movable cavity.

[0016] The advantage of this utility model is that it provides a plastic spray gun with a flat nozzle that is easy to replace and maintain. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0018] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0019] In the attached diagram:

[0020] Figure 1This is a schematic diagram of the structure of a plastic spraying flat nozzle spray gun in one embodiment of the present invention.

[0021] Figure 2 for Figure 1 A cross-sectional view of the second slot of the plastic spray gun in the illustrated embodiment.

[0022] Figure 3 for Figure 2 Enlarged view of point A in the image.

[0023] Figure 4 for Figure 1 A cross-sectional view of the guide rail of the plastic spray gun in the illustrated embodiment.

[0024] Figure 5 for Figure 4 Enlarged view of point B in the image.

[0025] Figure 6 for Figure 5 Enlarged view of point C in the image.

[0026] The meanings of the reference numerals in the figure are as follows:

[0027] 101. Gun body; 102. Handle; 103. Barrel; 104. Nozzle; 105. Movable block; 1051. Cavity; 1052. Oxyacetylene nozzle; 1053. Push block; 106. Connecting ring; 107. Extension ring; 108. Rotating rod; 109. First fixing block; 110. Protrusion; 111. Fourth spring; 112. Second slot; 113. Guide rail; 114. Connecting block; 115. Second fixing block; 1151. Third fixing slot; 116. First spring; 117. Guide block; 118. First push rod; 119. Push plate; 120. Second spring; 121. Fixing rod; 122. Connecting rod; 123. Second push rod; 124. Third spring. Detailed Implementation

[0028] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0029] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0030] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0031] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0032] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0033] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] like Figure 1-6 As shown, a plastic spray gun with a flat nozzle includes a gun body 101, a handle 102, and a nozzle 104. The handle 102 is mounted on the gun body 101, and the nozzle 104 is connected to one end of the gun body 101. The nozzle nozzle has a flat spray pattern. A barrel 103 is provided at one end of the gun body 101, and the nozzle 104 is detachably connected to the barrel 103. A movable block 105 is provided on the barrel 103. The movable block 105 can move along the side wall of the barrel 103. When the movable block 105 moves to a position close to the nozzle 104, the nozzle 104 is fixed to the barrel 103. When the movable block 105 moves to a position further away from the nozzle 104, the nozzle 104 is fixed to the barrel 103. When away from the nozzle 104 position, the nozzle 104 can be detached from the barrel 103; the movable block 105 is connected to an oxyacetylene tube, and the movable block 105 is provided with a cavity 1051 and multiple oxyacetylene nozzles 1052. The oxyacetylene nozzles 1052 are located on the side wall of the cavity 1051. Oxyacetylene enters the cavity 1051 through the oxyacetylene tube and is ignited, and is sprayed out from the oxyacetylene nozzles 1052. Nylon powder or plastic powder is sprayed out from the nozzle 104. When the nylon powder or plastic powder passes through the high-temperature flame zone, it is heated and melted and adheres to the surface of the hot parts until the required thickness is achieved.

[0035] Specifically, a connecting ring 106 is provided at one end of the barrel 103, and an extension ring 107 is provided on the nozzle 104. The extension ring 107 is sleeved on the connecting ring 106, and a protruding ring is provided on the inner wall of the extension ring 107. The extension ring 107 is sleeved on the connecting ring 106 to connect the nozzle 104 to the barrel 103. The protruding ring is used to increase the cooperation effect between the extension ring 107 and the connecting ring 106, ensuring the connection effect between the nozzle 104 and the barrel 103.

[0036] Furthermore, a positioning block is provided at one end of the barrel 103, and a positioning groove corresponding to the positioning block is provided on the extension ring 107; a first slot is provided on the positioning block, and a rotating rod 108 is provided in the first slot, which is rotatably connected to the inner wall of the first slot; a first fixing block 109 is provided at one end of the rotating rod 108, and a first fixing groove corresponding to the first fixing block 109 is provided on the extension ring 107.

[0037] The barrel 103 is provided with a second slot 112, the rotating rod 108 extends into the second slot 112, the rotating rod 108 is provided with a protrusion 110, the protrusion 110 is an arc-shaped structure, the rotating rod 108 is also provided with a fourth spring 111, the fourth spring 111 abuts against the inner wall of the second slot 112; the movable block 105 is provided with a push block 1053, the push block 1053 is inserted into the second slot 112.

[0038] When installing the nozzle 104, the movable block 105 is positioned away from the connecting ring 106. The push block 1053 abuts against the protrusion 110, pushing the rotating rod 108 to rotate. The end of the rotating rod 108 inside the second slot 112 moves towards the inner wall of the second slot 112, causing the end of the rotating rod 108 outside the second slot 112 to move away from the connecting ring 106. After aligning the positioning groove with the positioning block, the extension ring 107 is fitted onto the connecting ring 106. The protruding ring initially fixes the nozzle 104. The first fixing groove and the first The fixed block 109 is also in a relatively aligned state; the movable block 105 is pushed towards the nozzle 104. After the movable block 105 moves, the fourth spring 111 pushes the rotating rod 108 to rotate. The rotation of the rotating rod 108 causes the first fixed block 109 to be inserted into the first fixed groove to fix the nozzle 104 on the barrel 103. When the movable block 105 moves to the limit position, the push block 1053 is on the side of the first fixed block 109. The push block 1053 blocks the first fixed block 109 to prevent the nozzle 104 from falling off the barrel 103 due to misoperation.

[0039] When disassembling the nozzle 104, the movable block 105 is moved away from the nozzle 104. The push block 1053 moves with the movable block 105 and abuts against the protrusion 110, pushing the rotating rod 108 to rotate. The first fixing block 109 is dislodged from the first fixing groove, and the nozzle 104 can be directly removed from the connecting ring 106.

[0040] Furthermore, the barrel 103 has a mounting groove on its side wall, a guide rail 113 is provided in the mounting groove, a guide groove is provided on the guide rail 113, and a guide block 117 is provided on the movable block 105. The guide block 117 is inserted into the guide groove and can move in the guide groove.

[0041] A connecting block 114 is provided on the side wall of the guide rail 113. The connecting block 114 is provided with a first movable groove. A second fixed block 115 is provided in the first movable groove. A first spring 116 is provided on the second fixed block 115. One end of the first spring 116 is fixed to the inner wall of the first movable groove. A second fixed groove corresponding to the second fixed block 115 is provided on the guide block 117.

[0042] The movable block 105 is provided with a through cavity, which communicates with the second fixed groove. A first push rod 118 is provided in the through cavity. One end of the first push rod 118 is provided with a push plate 119, and a second spring 120 is provided on the push plate 119. The side wall of the first movable groove is provided with a groove corresponding to the push plate 119.

[0043] Furthermore, a second movable groove is provided on the side wall of the guide groove, and a fixed rod 121 is provided in the second movable groove. A third fixed groove 1151 is provided on the second fixed block 115. A movable cavity is provided on the side wall of the guide groove, and the movable cavity is located at one end of the second movable groove. A connecting rod 122 is provided in the movable cavity. The connecting rod 122 is connected to the fixed rod 121. A second push rod 123 is provided on the connecting rod 122. The second push rod 123 passes through the movable cavity. A third spring 124 is also provided on the connecting rod 122. The third spring 124 abuts against the inner wall of the movable cavity.

[0044] When the movable block 105 is positioned close to the nozzle 104, the second fixing block 115 is inserted into the second fixing groove to fix the movable block 105, ensuring the connection between the nozzle 104 and the barrel 103. When disassembling the nozzle 104, the push plate 119 is pushed towards the movable block 105, and the first push rod 118 enters the second fixing groove to push the second fixing block 115 out of the second fixing groove. At this time, the movable block 105 can be easily moved to remove the nozzle 104. When the movable block 105 moves, the fixing rod 121 is inserted into the third fixing groove 1151 to fix the second fixing block 115. The guide block 117 is fixed in the first movable groove to avoid obstruction when it moves within the groove. When the movable block 105 moves back to the end near the nozzle 104, the guide block 117 pushes the second push rod 123 to move, causing the fixing rod 121 to move out of the third fixing groove 1151. The first spring 116 pushes the second fixing block 115 to move out of the first movable groove. After the second fixing groove moves to the side of the second fixing block 115, the second fixing block 115 naturally inserts into the second fixing groove, re-fixing the movable block 105 in the position near the nozzle 104, thus improving the stability of the spray gun.

[0045] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A plastic spray paint flat nozzle spray gun, comprising a gun body, a handle and a spray head, the handle is arranged on the gun body, the spray head is connected to one end of the gun body, and the spray opening of the spray head is in a flat structure; characterized in that: The gun body has a barrel at one end, and the nozzle is detachably connected to the barrel. The barrel has a movable block that can move along the side wall of the barrel. When the movable block moves close to the nozzle, the nozzle is fixed to the barrel. When the movable block moves away from the nozzle, the nozzle can be detached from the barrel. An oxyacetylene tube is connected to the movable block. The movable block has a cavity and multiple oxyacetylene nozzles, which are located on the side wall of the cavity. ​ 2. The plastic spray gun with a flat nozzle according to claim 1, characterized in that: The gun barrel has a connecting ring at one end, and the nozzle has an extension ring. The extension ring is fitted onto the connecting ring, and the inner wall of the extension ring has a protruding ring.

3. The plastic spray gun with a flat nozzle according to claim 2, characterized in that: The barrel has a positioning block at one end, and the extension ring has a positioning groove corresponding to the positioning block.

4. The plastic spray gun with a flat nozzle according to claim 3, characterized in that: The positioning block has a first slot, and a rotating rod is provided in the first slot. The rotating rod is rotatably connected to the inner wall of the first slot. One end of the rotating rod has a first fixing block, and the extension ring has a first fixing slot corresponding to the first fixing block.

5. The plastic spray gun with a flat nozzle according to claim 4, characterized in that: The barrel has a second slot, the rotating rod extends into the second slot, the rotating rod has a protrusion, the movable block has a push block, and the push block is inserted into the second slot.

6. The plastic spray gun with a flat nozzle according to claim 1, characterized in that: The barrel sidewall is provided with a mounting groove, the mounting groove is provided with a guide rail, the guide rail is provided with a guide groove, the movable block is provided with a guide block, the guide block is inserted into the guide groove and can move within the guide groove.

7. The plastic spray gun with a flat nozzle according to claim 6, characterized in that: The guide rail sidewall is provided with a connecting block, the connecting block is provided with a first movable groove, the first movable groove is provided with a second fixed block, the second fixed block is provided with a first spring, one end of the first spring is fixed to the inner wall of the first movable groove, and the guide block is provided with a second fixed groove corresponding to the second fixed block.

8. The plastic spray gun with a flat nozzle according to claim 7, characterized in that: The movable block has a through cavity that communicates with the second fixed groove. A first push rod is provided inside the through cavity. One end of the first push rod is provided with a push plate, and a second spring is provided on the push plate. The side wall of the first movable groove is provided with a groove corresponding to the push plate.

9. The plastic spray gun with a flat nozzle according to claim 7, characterized in that: The guide groove sidewall is provided with a second movable groove, the second movable groove is provided with a fixed rod, and the second fixed block is provided with a third fixed groove.

10. The plastic spray gun with a flat nozzle according to claim 9, characterized in that: The guide groove has a movable cavity on its side wall, which is located at one end of the second movable groove. A connecting rod is provided inside the movable cavity, and the connecting rod is connected to the fixed rod. A second push rod is provided on the connecting rod, which passes through the movable cavity. A third spring is also provided on the connecting rod, and the third spring abuts against the inner wall of the movable cavity.

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