High frequency induction melting welding spray gun

By setting up a replacement section and utilizing a gear transmission system to facilitate nozzle installation, the problem of low replacement efficiency in existing nozzles is solved, thereby improving replacement efficiency and reducing time consumption.

CN224273651UActive Publication Date: 2026-05-26JIANGSU KEHUAN INNOVATIVE MATERIAL CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU KEHUAN INNOVATIVE MATERIAL CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing detachable nozzles are very troublesome to replace, requiring the internal parts of the spray gun to be disassembled as well, resulting in low replacement efficiency and increased time consumption.

Method used

By setting up a replacement unit, gear three drives bevel gear two to rotate counterclockwise through shaft one, bevel gear two drives bevel gear one to rotate, bevel gear one drives gear two to rotate clockwise through shaft two, gear two drives rotating ring to rotate counterclockwise through gear ring, rotating ring drives moving rod downward through arc groove, moving rod drives limit block downward to lock the insertion block, thus realizing easy installation of nozzle.

Benefits of technology

It greatly improves the efficiency of nozzle replacement, simplifies operation, and reduces time consumption.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224273651U_ABST
    Figure CN224273651U_ABST
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Abstract

This utility model discloses a high-frequency induction welding spray gun, relating to the field of welding spray gun technology. The utility model includes a spray gun body with a handle fixedly connected to its bottom. A nozzle is inserted inside the spray gun body, and insertion blocks are fixedly connected to the top and bottom of the nozzle. It also includes: a replacement part installed inside the spray gun body for replacing damaged blasting parts; and a heat dissipation part installed inside the spray gun body. Specifically, the replacement part involves gear three driving bevel gear two counterclockwise via a rotating shaft one, bevel gear two driving bevel gear one to rotate, bevel gear one driving gear two clockwise via a rotating shaft two, and gear two driving a rotating ring counterclockwise via a gear ring. The rotating ring drives a moving rod downwards via an arc groove, and the moving rod drives a limiting block downwards to lock inside the insertion block. At this point, the nozzle is installed, simplifying operation and greatly improving replacement efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of welding torch technology, and in particular relates to a high-frequency induction welding torch. Background Technology

[0002] Since its inception, high-frequency induction welding technology has undergone continuous development and improvement. With the continuous progress of power electronics technology, materials science and control technology, the performance and quality of high-frequency induction welding torches have been significantly improved.

[0003] The nozzle is an important component of the welding torch. The quality of the nozzle directly affects the welding accuracy. Welding torch nozzles are generally divided into fixed and detachable types. However, existing detachable nozzles are very troublesome to replace. Some require disassembling the inside of the torch to replace them, which not only greatly reduces the replacement efficiency but also increases the time wasted. To address this, we propose a high-frequency induction welding torch. Utility Model Content

[0004] The purpose of this utility model is to provide a high-frequency induction welding spray gun. By setting a replacement part, specifically, gear three drives bevel gear two to rotate counterclockwise through shaft one, bevel gear two drives bevel gear one to rotate, bevel gear one drives gear two to rotate clockwise through shaft two, gear two drives a rotating ring to rotate counterclockwise through a gear ring, and the rotating ring drives a moving rod to move downward through an arc groove. The moving rod drives a limiting block to move downward and lock it inside the insertion block. At this time, the nozzle is installed. The operation is simple and greatly improves the replacement efficiency. It solves the problem that the replacement of existing detachable nozzles is very troublesome, and some require disassembling the inside of the spray gun to replace them, which not only greatly reduces the replacement efficiency but also increases the time wasted.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a high-frequency induction welding spray gun, comprising a spray gun body, a handle fixedly connected to the bottom of the spray gun body, a nozzle inserted inside the spray gun body, and insertion blocks fixedly connected to the top and bottom of the nozzle, and further comprising:

[0007] A replacement part is installed inside the spray gun body and is used to replace damaged sandblasting parts.

[0008] A heat dissipation unit is installed inside the spray gun body and is used to remove heat from the inside of the spray gun body.

[0009] The spray gun body has a slot inside, and the slot on the spray gun body is inserted into the outer surface of the insertion block.

[0010] Furthermore, the replacement unit includes a mounting assembly installed inside the spray gun body, the mounting assembly being used to limit the insertion block on the spray gun body;

[0011] A disassembly assembly is installed inside the spray gun body and is used to release the installation assembly from limiting the insertion block.

[0012] The mounting component is located to the left of the disassembly component and is used to be embedded inside the insertion block.

[0013] Furthermore, the heat dissipation section includes a heat dissipation assembly installed inside the spray gun body, the heat dissipation assembly being used to circulate coolant.

[0014] Furthermore, the mounting assembly includes a rotating ring, the inside of which is rotatably connected to the inner wall of the spray gun body. A drive disc is fixedly connected to the left side of the inside of the rotating ring, and a toothed ring is fixedly connected to the right side of the inside of the rotating ring. Two limiting blocks are slidably connected inside the spray gun body, and a moving rod is fixedly connected to the right side of the limiting blocks.

[0015] The outer surface of the moving rod is slidably connected to the inside of the spray gun body. The drive disc has two arc-shaped grooves inside, which are slidably connected to the right outer surface of the moving rod. The bottom of the outer surface of the limiting block is inserted into the inside of the insertion block.

[0016] Furthermore, the disassembly assembly includes a second gear, a second rotating shaft is fixedly connected to the right side of the second gear, the outer surface of the second rotating shaft is rotatably connected to the inside of the spray gun body, a first bevel gear is fixedly connected to the right side of the second rotating shaft, and a second bevel gear is meshed with the back of the first bevel gear.

[0017] The bevel gear two is internally fixedly connected to a rotating shaft one, and the rotating shaft one is fixedly connected to a gear three on its outer surface.

[0018] Furthermore, gear one is meshed with the right side of gear three, and the front and back of gear one are rotatably connected to the inside of the spray gun body. A rack is meshed with the top of gear one, and a protrusion is fixedly connected to the top of the spray gun body. Two round rods are fixedly connected inside the protrusion.

[0019] The outer surface of the round rod is slidably connected to the inside of the rack, and a spring is fixedly connected to the left side of the rack. The left side of the spring is fixedly connected to the inner wall of the left side of the protrusion.

[0020] Furthermore, the heat dissipation assembly includes a collection cover, the left side of which is fixedly connected to the right side of the spray gun body, and a liquid outlet pipe is fixedly connected inside the collection cover. The spray gun body has an inlet channel and an outlet channel inside, with the top left side of the inlet channel and the bottom left side of the outlet channel penetrating each other.

[0021] The spray gun body has a liquid inlet pipe fixedly connected to the right side, the outer surface of the liquid inlet pipe is fixedly connected to the inside of the collection cover, the right side of the liquid inlet channel is fixedly connected to the left side of the liquid outlet pipe, and the right side of the liquid outlet channel is fixedly connected to the left side of the liquid outlet pipe.

[0022] This utility model has the following beneficial effects:

[0023] 1. This utility model, through the setting of a replacement part, specifically, involves gear three driving bevel gear two to rotate counterclockwise via shaft one, bevel gear two driving bevel gear one to rotate, bevel gear one driving gear two to rotate clockwise via shaft two, gear two driving a rotating ring to rotate counterclockwise via a gear ring, and the rotating ring driving a moving rod to move downwards via an arc groove, the moving rod driving a limiting block to move downwards and lock the insertion block inside, at which point the nozzle is installed, the operation is simple and greatly improves the replacement efficiency.

[0024] 2. This utility model incorporates a heat dissipation component. Specifically, when using the spray gun body, coolant is introduced into the inlet channel from the inlet pipe. The inlet channel transfers the coolant to the outlet channel. The inlet channel has a semi-enclosed layout for the heating module inside the spray gun body. The coolant inside the inlet channel carries away the heat inside the spray gun body from the outlet channel, reducing the wear and tear on the internal parts of the spray gun body caused by heat generation.

[0025] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the rotating ring structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the toothed ring structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the gear structure of this utility model;

[0031] Figure 5 This is a schematic diagram of the rack structure of this utility model;

[0032] Figure 6 This is a schematic diagram of the bevel gear structure of this utility model;

[0033] Figure 7 This is a schematic diagram of the liquid outlet pipe structure of this utility model.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Spray gun body; 11. Nozzle; 12. Handle; 13. Insertion block; 2. Replacement part; 21. Mounting assembly; 211. Rotary ring; 212. Drive disc; 213. Gear ring; 214. Limiting block; 215. Moving rod; 22. Disassembly assembly; 221. Gear 1; 222. Rotating shaft 1; 223. Bevel gear 1; 224. Rotating shaft 2; 225. Gear 2; 226. Gear 3; 227. Round rod; 228. Spring; 229. Rack; 291. Bevel gear 2; 3. Heat dissipation part; 31. Heat dissipation assembly; 311. Collection cover; 312. Liquid outlet pipe; 313. Liquid inlet pipe. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0037] Please see Figures 1-7 As shown, this utility model is a high-frequency induction welding spray gun, including a spray gun body 1, a handle 12 fixedly connected to the bottom of the spray gun body 1, a nozzle 11 inserted inside the spray gun body 1, and insertion blocks 13 fixedly connected to the top and bottom of the nozzle 11, and also including:

[0038] Replacement unit 2 is installed inside the spray gun body 1 and is used to replace damaged sandblasting parts.

[0039] Heat dissipation unit 3 is installed inside the spray gun body 1 and is used to remove heat from the inside of the spray gun body 1.

[0040] The spray gun body 1 has a slot inside, and the slot on the spray gun body 1 is inserted into the outer surface of the insertion block 13.

[0041] The replacement unit 2 includes an installation assembly 21 installed inside the spray gun body 1. The installation assembly 21 is used to limit the insertion block 13 on the spray gun body 1. Gear 3 226 drives bevel gear 291 to rotate counterclockwise through shaft 1 222. Bevel gear 291 drives bevel gear 1 223 to rotate. Bevel gear 1 223 drives gear 225 to rotate clockwise through shaft 224. Gear 225 drives rotating ring 211 to rotate counterclockwise through gear ring 213. Rotating ring 211 drives moving rod 215 to move downward through arc groove. Moving rod 215 drives limiting block 214 to move downward and lock the inside of insertion block 13. At this time, the nozzle 11 is installed. The operation is simple and the replacement efficiency is greatly improved.

[0042] Disassembly component 22 is installed inside the spray gun body 1. Disassembly component 22 is used to release the restriction of the installation component 21 on the insertion block 13.

[0043] The mounting component 21 is located to the left of the disassembly component 22, and the mounting component 21 is used to embed into the insertion block 13.

[0044] The heat dissipation unit 3 includes a heat dissipation component 31 installed inside the spray gun body 1, which is used to circulate coolant.

[0045] The mounting assembly 21 includes a rotating ring 211, which is rotatably connected to the inner wall of the spray gun body 1. A drive disk 212 is fixedly connected to the left side of the rotating ring 211, and a toothed ring 213 is fixedly connected to the right side of the rotating ring 211. Two limit blocks 214 are slidably connected inside the spray gun body 1, and a moving rod 215 is fixedly connected to the right side of the limit block 214.

[0046] The outer surface of the moving rod 215 is slidably connected to the inside of the spray gun body 1. Two arc-shaped grooves are opened inside the drive disk 212. The inside of the arc-shaped grooves is slidably connected to the right outer surface of the moving rod 215. The bottom of the outer surface of the limiting block 214 is inserted into the inside of the insertion block 13.

[0047] The disassembly assembly 22 includes a second gear 225. A second rotating shaft 224 is fixedly connected to the right side of the second gear 225. The outer surface of the second rotating shaft 224 is rotatably connected to the inside of the spray gun body 1. A first bevel gear 223 is fixedly connected to the right side of the second rotating shaft 224. A second bevel gear 291 is meshed with the back of the first bevel gear 223.

[0048] Among them, the inner part of the bevel gear 291 is fixedly connected to the rotating shaft 222, and the outer surface of the rotating shaft 222 is fixedly connected to the gear 3 226.

[0049] Gear 221 is meshed with gear 3 on the right side. Gear 221 is rotatably connected to the inside of the spray gun body 1 on the front and back. Gear 221 is meshed with rack 229 on the top. A protrusion is fixedly connected to the top of the spray gun body 1. Two round rods 227 are fixedly connected inside the protrusion.

[0050] The outer surface of the round rod 227 is slidably connected to the inside of the rack 229, and a spring 228 is fixedly connected to the left side of the rack 229. The left side of the spring 228 is fixedly connected to the inner wall of the left side of the protrusion.

[0051] The heat dissipation assembly 31 includes a collection cover 311, which is fixedly connected to the right side of the spray gun body 1 on the left side. A liquid outlet pipe 312 is fixedly connected inside the collection cover 311. The spray gun body 1 has an inlet channel and an outlet channel inside. The top left side of the inlet channel and the bottom left side of the outlet channel penetrate each other. When using the spray gun body 1, coolant is introduced into the inlet channel through the inlet pipe 313. The inlet channel transfers the coolant to the outlet channel. The inlet channel is semi-enclosed to the heat-generating module inside the spray gun body 1. The coolant inside the inlet channel carries away the heat inside the spray gun body 1 from the outlet channel, reducing the wear and tear on the internal parts of the spray gun body 1 caused by heat generation.

[0052] The spray gun body 1 has an inlet pipe 313 fixedly connected to the right side. The outer surface of the inlet pipe 313 is fixedly connected to the inside of the collection cover 311. The right side of the inlet channel is fixedly connected to the left side of the outlet pipe 312, and the right side of the outlet channel is fixedly connected to the left side of the outlet pipe 312.

[0053] A specific application of this embodiment is as follows: When the nozzle of the spray gun is damaged or the accuracy is too low, turn the rotating ring 211 clockwise. The rotating ring 211 drives the internal arc groove to rotate, the arc groove drives the moving rod 215 to move, and the moving rod 215 drives the limiting block 214 to move. Due to the limitation of the groove on the inner side of the spray gun body 1, the moving rod 215 drives the limiting block 214 to move upward until the limiting block 214 no longer jams the insertion block 13. Pull the nozzle 11 to the left and take it out. At this time, without releasing the rotating ring 211, insert the new nozzle 11 into the groove on the inside of the spray gun body 1. At this time, release the rotating ring 211. The spring 228 uses its elasticity to spring the rack 229 back to its original position. The rack 229 drives the gear 1 221 to rotate clockwise. 221 drives gear 3 226 to rotate counterclockwise. Gear 3 226 drives bevel gear 291 to rotate counterclockwise through shaft 1 222. Bevel gear 291 drives bevel gear 1 223 to rotate. Bevel gear 1 223 drives gear 225 to rotate clockwise through shaft 224. Gear 225 drives rotating ring 211 to rotate counterclockwise through gear ring 213. Rotating ring 211 drives moving rod 215 to move downward through arc groove. Moving rod 215 drives limiting block 214 to move downward and lock the insertion block 13. At this time, nozzle 11 is installed. When using spray gun body 1, coolant is introduced into the inlet channel from inlet pipe 313. The inlet channel transfers coolant to the outlet channel and finally discharges it through outlet pipe 312.

[0054] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-frequency induction welding spray gun, comprising a spray gun body (1), a handle (12) fixedly connected to the bottom of the spray gun body (1), a nozzle (11) inserted inside the spray gun body (1), and an insertion block (13) fixedly connected to the top and bottom of the nozzle (11), characterized in that, Also includes: Replacement part (2), which is installed inside the spray gun body (1), is used to replace damaged sandblasting parts; Heat dissipation part (3) is installed inside the spray gun body (1) and is used to remove heat from the inside of the spray gun body (1); The spray gun body (1) has a slot inside, and the slot on the spray gun body (1) is inserted into the outer surface of the insertion block (13).

2. The high-frequency induction welding torch according to claim 1, characterized in that, The replacement part (2) includes a mounting assembly (21) installed inside the spray gun body (1), the mounting assembly (21) being used to limit the insertion block (13) on the spray gun body (1); Disassembly assembly (22), which is installed inside the spray gun body (1), is used to release the installation assembly (21) from limiting the insertion block (13); The mounting component (21) is located to the left of the disassembly component (22), and the mounting component (21) is used to embed inside the insertion block (13).

3. A high-frequency induction welding torch according to claim 2, characterized in that, The heat dissipation unit (3) includes a heat dissipation assembly (31) installed inside the spray gun body (1), the heat dissipation assembly (31) being used to introduce coolant.

4. A high-frequency induction welding torch according to claim 3, characterized in that, The mounting assembly (21) includes a rotating ring (211), which is rotatably connected to the inner wall of the spray gun body (1). A drive disc (212) is fixedly connected to the left side of the rotating ring (211), and a toothed ring (213) is fixedly connected to the right side of the rotating ring (211). Two limiting blocks (214) are slidably connected inside the spray gun body (1), and a moving rod (215) is fixedly connected to the right side of the limiting block (214). The outer surface of the moving rod (215) is slidably connected to the inside of the spray gun body (1), the drive disk (212) has two arc-shaped grooves, the inside of the arc-shaped grooves is slidably connected to the right outer surface of the moving rod (215), and the bottom of the outer surface of the limiting block (214) is inserted into the inside of the insertion block (13).

5. A high-frequency induction welding torch according to claim 4, characterized in that, The disassembly assembly (22) includes a second gear (225), a second rotating shaft (224) is fixedly connected to the right side of the second gear (225), the outer surface of the second rotating shaft (224) is rotatably connected to the inside of the spray gun body (1), a first bevel gear (223) is fixedly connected to the right side of the second rotating shaft (224), and a second bevel gear (291) is meshed with the back of the first bevel gear (223). Among them, the inner part of the bevel gear two (291) is fixedly connected to the rotating shaft one (222), and the outer surface of the rotating shaft one (222) is fixedly connected to the gear three (226).

6. A high-frequency induction welding torch according to claim 5, characterized in that, Gear 1 (221) is meshed with the right side of gear 3 (226). The front and back of gear 1 (221) are rotatably connected to the inside of the spray gun body (1). A rack (229) is meshed with the top of gear 1 (221). A protrusion is fixedly connected to the top of the spray gun body (1). Two round rods (227) are fixedly connected inside the protrusion. The outer surface of the round rod (227) is slidably connected to the inside of the rack (229), and a spring (228) is fixedly connected to the left side of the rack (229). The left side of the spring (228) is fixedly connected to the left inner wall of the protrusion.

7. A high-frequency induction welding torch according to claim 6, characterized in that, The heat dissipation assembly (31) includes a collection cover (311), the left side of which is fixedly connected to the right side of the spray gun body (1), and an outlet pipe (312) is fixedly connected inside the collection cover (311). The spray gun body (1) has an inlet channel and an outlet channel inside, and the top left side of the inlet channel and the bottom left side of the outlet channel penetrate each other. The spray gun body (1) is fixedly connected to the right side of the liquid inlet pipe (313), the outer surface of the liquid inlet pipe (313) is fixedly connected to the inside of the collection cover (311), the right side of the liquid inlet channel is fixedly connected to the left side of the liquid outlet pipe (312), and the right side of the liquid outlet channel is fixedly connected to the left side of the liquid outlet pipe (312).