Welded seamless anti-fouling pot

By using MIG welding technology and a seamless welding surface design, the problem of dirt accumulation at the joints of traditional woks is solved, achieving convenient cleaning and hygienic safety for welded cookware, and providing a flexible way to hold it and effortless operation.

CN224307128UActive Publication Date: 2026-06-02刘勇

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
刘勇
Filing Date
2025-06-03
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The gap between the body and handle of a traditional wok leads to the accumulation of oil and food residue, which breeds bacteria, making cleaning difficult and affecting hygiene and appearance.

Method used

The pot body and handle are welded together using MIG welding technology to form a seamless welded surface, which is then polished. A grip and an extension handle are provided on the handle to facilitate adjustment of the hand position and effortless operation. The connector and end handle can be quickly installed or removed as needed.

Benefits of technology

The design achieves a seamless connection between the pot body and the handle, reducing the risk of dirt adhesion, improving cleaning convenience and hygiene safety, while also providing a flexible way to hold the pot and effortless operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a welded seamless anti-fouling pot, belonging to the field of cooking utensil technology. It includes a pot body and a handle. The handle is welded to the outer wall of the pot body using a gas welding process, forming a seamless welded surface at the joint between the handle and the pot body. This welded surface is then polished. This design solves the problem in existing cookware where gaps exist at the joint between the handle and the pot body, leading to the accumulation of dirt and grime. Through gas welding and an adjustable handle structure, this utility model effectively solves the problems of traditional cookware such as easy dirt accumulation, inconvenient grip, and insufficient safety. It offers higher hygiene, durability, and ease of use, making it suitable for both home and commercial kitchens.
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Description

Technical Field

[0001] This utility model relates to the field of cooking utensil technology, specifically to a welded seamless anti-fouling pot. Background Technology

[0002] Woks are a common cooking utensil used in China, and their structural design and hygiene performance directly affect the user experience. However, traditional woks have some technical shortcomings. In existing woks, the connection between the wok body and the handle is usually achieved through riveting or spot welding. While riveting makes disassembly easy, food residue and grease can easily remain at the joint, making it prone to bacterial growth. On the other hand, the welded surface of traditional spot welding often has tiny gaps or unevenness, which can also become areas for dirt accumulation, making cleaning difficult and affecting hygiene and aesthetics.

[0003] Therefore, how to provide a welded seamless anti-fouling pot to overcome the shortcomings of the existing technology is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] Therefore, this utility model provides a welded seamless anti-fouling pot to solve the problem in the prior art where the connection between the handle and the pot body is prone to dirt and grime accumulation.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model discloses a welded seamless anti-fouling pot, including a pot body and a pot handle. The pot handle is welded to the outer wall of the pot body by a gas welding process. A seamless welding surface is formed at the connection between the pot handle and the pot body. The welding surface is then polished.

[0007] Furthermore, the shear strength of the welded surface is ≥100MPa.

[0008] Furthermore, the surface of the welded surface is electroplated with an aluminum oxide layer.

[0009] Furthermore, it also includes:

[0010] A handle is inserted into the outside of the pot handle and fixedly connected to the pot handle by bolts. A sliding cavity is provided at the end of the handle away from the pot body.

[0011] An extension handle is slidably connected inside the sliding cavity, and a receiving hole is provided at the bottom of the extension handle;

[0012] A retaining pin is slidably connected inside the receiving hole;

[0013] A fixing spring is disposed inside the receiving hole, one end of the fixing spring is connected to the top wall of the fixing pin, and the other end of the fixing spring is connected to the inner wall of the receiving hole;

[0014] The fixing holes are arranged in pairs and are formed through the bottom wall of the sliding cavity.

[0015] Furthermore, a through groove is provided on the bottom wall of the grip, and a pull plate is integrally formed on the bottom wall of the extension handle, the pull plate extending to the lower side of the through groove.

[0016] Furthermore, it also includes:

[0017] The connector is welded to the outer wall of the pot body by MIG welding, and a through hole is provided on the side wall of the connector;

[0018] The end handle is inserted into the outside of the connector;

[0019] A sliding groove is formed inside the end handle;

[0020] A sliding groove is formed on the top wall of the sliding channel, and the sliding grooves are internally connected to each other.

[0021] A limiting pin is slidably connected in the sliding groove, and a slider is integrally formed on the top of the limiting pin, the slider passing through the sliding groove;

[0022] A limiting spring is disposed inside the sliding groove. One end of the limiting spring is connected to the side wall of the limiting pin, and the other end of the limiting spring is connected to the inner wall of the sliding groove.

[0023] This utility model has the following advantages:

[0024] This invention utilizes a silicon dioxide welding technique to weld the pot body and handle, creating a seamless weld surface at the joint. This eliminates gaps and prevents the accumulation of oil, food residue, and bacteria in these gaps. Furthermore, the weld surface is polished to create a smooth surface, further reducing the risk of dirt adhesion and achieving a dual improvement in cleaning convenience and hygiene. The addition of a handle and an extension handle allows users to flexibly adjust the distance between their hand and the pot body according to cooking needs, preventing burns from hot oil splattering during frying. The extended handle also creates a lever effect, making tossing the pot easier, especially suitable for cooking methods requiring frequent stirring, such as stir-frying. The connector and end handle allow for quick installation or removal of the end handle, enabling different grip methods to be used for different cooking scenarios. Attached Figure Description

[0025] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0026] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0027] Figure 1 A three-dimensional view of the welded seamless anti-fouling pot provided for this utility model;

[0028] Figure 2 Provided by this utility model Figure 1 Enlarged view of the A-structure;

[0029] Figure 3 A cross-sectional view of the grip provided for this utility model;

[0030] Figure 4 A diagram showing the connector and end handle separated as provided by this utility model;

[0031] Figure 5 Provided by this utility model Figure 4 Enlarged view of the B-structure;

[0032] Figure 6 This is a cross-sectional view of the end handle provided by this utility model.

[0033] In the diagram: 1. Pot body; 2. Pot handle; 3. Welded surface; 4. Grip; 41. Sliding cavity; 42. Extension handle; 43. Receiving hole; 44. Fixing pin; 45. Fixing spring; 46. Fixing hole; 47. Through groove; 48. Pull-out plate; 5. Connector; 51. Through hole; 6. End handle; 61. Sliding groove; 62. Sliding groove; 63. Limiting pin; 64. Sliding block; 65. Limiting spring. Detailed Implementation

[0034] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] Please refer to Figures 1-6 The welded seamless anti-fouling pot disclosed in this utility model will now be described. This utility model consists of two parts, as follows: Figure 1 , Figure 2 As shown, the vessel includes a pot body 1 and a handle 2. The handle 2 is welded to the outer wall of the pot body 1 using CO2 welding. A seamless welding surface 3 is formed at the connection between the handle 2 and the pot body 1, and the welding surface 3 is ground. In this embodiment, conventional spot welding is not used; instead, CO2 welding is employed to weld the pot body 1 and the handle 2. Carbon dioxide gas shielded welding (CO2 welding) is an arc welding method that uses CO2 gas as the protective medium. Its core principle is to melt the welding wire and the base material at high temperature using an electric arc to form a molten pool. Simultaneously, CO2 gas is sprayed to cover the welding area, isolating harmful gases such as oxygen and nitrogen in the air, preventing oxidation and nitriding of the weld, thereby ensuring welding quality.

[0036] After welding using MIG welding technology, a seamless welded surface 3 is formed at the connection between the pot body 1 and the handle 2, which is significantly superior to traditional riveting or bolting methods. This structure completely eliminates connection gaps, preventing oil stains and food residue from accumulating and breeding bacteria in the gaps. At the same time, the welded surface 3 is polished to form a smooth surface, further reducing the risk of dirt adhesion and achieving a dual improvement in cleaning convenience and hygiene safety.

[0037] Preferably, the shear strength of the welded surface 3 is ≥100MPa, ensuring that the pot handle 2 is firmly connected to the pot body 1, and is not easy to break or loosen, thus improving durability.

[0038] Preferably, the surface of the welded surface 3 is electroplated with an aluminum oxide layer, forming a dense oxide film that effectively blocks the corrosion of the metal substrate by acidic / alkaline ingredients during cooking. Compared with ordinary welded cookware, which is prone to loosening of weld points due to corrosion, this patented technology can extend the service life of the cookware by more than 30%, while improving the wear resistance of the welded surface 3.

[0039] like Figure 2 , Figure 3As shown, it also includes a handle 4, an extension handle 42, a fixing pin 44, a fixing spring 45, and fixing holes 46. The handle 4 is inserted into the outside of the pot handle 2 and fixedly connected to the pot handle 2 by bolts. A sliding cavity 41 is opened at the end of the handle 4 away from the pot body 1. The extension handle 42 is slidably connected to the inside of the sliding cavity 41. A receiving hole 43 is opened at the bottom of the extension handle 42. The fixing pin 44 is slidably connected to the inside of the receiving hole 43. The fixing spring 45 is set inside the receiving hole 43. One end of the fixing spring 45 is connected to the top wall of the fixing pin 44, and the other end of the fixing spring 45 is connected to the inner wall of the receiving hole 43. The fixing holes 46 are arranged in pairs and are opened through the bottom wall of the sliding cavity 41.

[0040] In this embodiment, the end of the fixing pin 44 is hemispherical. The pot handle 2 is generally rectangular, and the end of the handle 4 connected to the pot handle 2 has a square opening. The area of ​​the square opening is slightly larger than the cross-sectional area of ​​the pot handle 2, so that the handle 4 and the pot handle 2 can form a tight fit after being inserted. The connection is further strengthened by fixing with bolts. The outer walls of the handle 4 and the extension handle 42 are rounded, making it more comfortable for the user to hold. The sliding cavity 41 has a structure with an opening on one side, from which the extension handle 42 can extend. The side wall of the opening of the sliding cavity 41 has a first flange, and the outer wall of the extension handle 42 has a second flange forming around its outline. When the extension handle 42 extends outward, the first flange and the second flange engage to prevent the extension handle 42 from coming out of the opening of the sliding cavity 41. The function of the fixing hole 46 is to cooperate with the fixing pin 44 to fix the position of the extension handle 42. When the extension handle 42 is retracted into the sliding cavity 41, the fixing pin 44 cooperates with the fixing hole 46 near the handle 2; when the extension handle 42 is fully extended, the fixing pin 44 cooperates with the fixing hole 46 near the opening of the sliding cavity 41. By setting the handle 4 and the extension handle 42, the user can flexibly adjust the distance between his hand and the pot body 1 according to the cooking needs, avoiding hot oil splattering and burning his hands during frying; at the same time, the extended handle 4 can form a lever effect, making the tossing operation easier, especially suitable for cooking methods such as Chinese stir-frying that require frequent flipping.

[0041] like Figure 1 , Figure 3As shown, a through groove 47 is formed on the bottom wall of the handle 4, and a pull-out plate 48 is integrally formed on the bottom wall of the extension handle 42, extending to the lower side of the through groove 47. In this embodiment, the through groove 47 is formed on the bottom wall at the opening of the sliding cavity 41. The through groove 47 is an open structure with only three side walls. The pull-out plate 48 passes through the through groove 47 and can slide away from the pot body 1 from the through groove 47. By setting the pull-out plate 48, the extension handle 42 can be easily pulled out from the sliding cavity 41, improving the ease of use of the extension handle 42. In use, first press the fixing pin 44 to make the fixing pin 44 enter the sliding cavity 41, slide your finger along the bottom of the handle 4 to the through groove 47, and then pull the pull-out plate 48, thereby causing the extension handle 42 to extend out from the sliding cavity 41.

[0042] like Figure 4 , Figure 5 , Figure 6 As shown, it also includes a connector 5, an end handle 6, a sliding groove 61, a sliding groove 62, a limiting pin 63, and a limiting spring 65. The connector 5 is welded to the outer wall of the pot body 1 by a gas welding machine. A through hole 51 is provided on the side wall of the connector 5. The end handle 6 is inserted into the outside of the connector 5. The sliding groove 61 is opened inside the end handle 6. The sliding groove 62 is opened on the top wall of the sliding groove 61. The sliding groove 62 and the sliding groove 61 are internally connected. The limiting pin 63 is slidably connected in the sliding groove 61. A slider 64 is integrally formed on the top of the limiting pin 63. The slider 64 passes through the sliding groove 62. The limiting spring 65 is set inside the sliding groove 61. One end of the limiting spring 65 is connected to the side wall of the limiting pin 63, and the other end of the limiting spring 65 is connected to the inner wall of the sliding groove 61.

[0043] In this embodiment, the connector 5 and the handle 2 are positioned opposite each other on both sides of the pot body 1. The connector 5 is also welded to the outer wall of the pot body 1 using MIG welding technology, and the connection point is also polished to prevent oil stains and food residue from accumulating in the gaps and breeding bacteria. The end handle 6 is a detachable structure. When the pot is heavy or when it needs to be held horizontally for soup making, the end handle 6 can be installed and used together with the grip 4 to hold the pot body 1 horizontally. The width of the sliding groove 62 is smaller than the diameter of the sliding groove 61, and the sliding groove 61 is connected to the through hole 51.

[0044] By setting up connector 5 and end handle 6, end handle 6 can be quickly installed or removed, and different gripping methods can be changed according to different cooking scenarios. In use, push slider 64, slider 64 will compress limit spring 65, then insert end handle 6 into connector 5 and release slider 64, limit spring 65 will push limit pin 63 through through hole 51 on side wall of connector 5 to form a locking connection.

[0045] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A welded seamless anti-fouling pot, characterized in that, It includes a pot body (1) and a pot handle (2). The pot handle (2) is welded to the outer wall of the pot body (1) by a gas welding process. A seamless welding surface (3) is formed at the connection between the pot handle (2) and the pot body (1). The welding surface (3) is polished.

2. The welded seamless anti-fouling pot as described in claim 1, characterized in that, The shear strength of the welded surface (3) is ≥100MPa.

3. The welded seamless anti-fouling pot as described in claim 1, characterized in that, The surface of the welding surface (3) is electroplated with an aluminum oxide layer.

4. The welded seamless anti-fouling pot as described in claim 1, characterized in that, Also includes: A handle (4) is inserted into the outside of the pot handle (2) and fixedly connected to the pot handle (2) by bolts. A sliding cavity (41) is provided at the end of the handle (4) away from the pot body (1). An extension handle (42) is slidably connected inside the sliding cavity (41), and a receiving hole (43) is provided at the bottom of the extension handle (42); A retaining pin (44) is slidably connected inside the receiving hole (43); A fixing spring (45) is disposed inside the receiving hole (43). One end of the fixing spring (45) is connected to the top wall of the fixing pin (44), and the other end of the fixing spring (45) is connected to the inner wall of the receiving hole (43). Fixing holes (46) are arranged in pairs and penetrate through the bottom wall of the sliding cavity (41).

5. The welded seamless anti-fouling pot as described in claim 4, characterized in that, The bottom wall of the grip (4) is provided with a through groove (47), and the bottom wall of the extension handle (42) is integrally formed with a pull plate (48), which extends to the lower side of the through groove (47).

6. The welded seamless anti-fouling pot as described in claim 1, characterized in that, Also includes: The connector (5) is welded to the outer wall of the pot body (1) by oxygen welding, and a through hole (51) is provided on the side wall of the connector (5). The end handle (6) is inserted into the outside of the connector (5); A sliding groove (61) is formed inside the end handle (6); A sliding groove (62) is formed on the top wall of the sliding groove (61), and the sliding groove (62) is internally connected to the sliding groove (61); A limiting pin (63) is slidably connected in the sliding groove (61), and a slider (64) is integrally formed on the top of the limiting pin (63), and the slider (64) extends out of the sliding groove (62). A limiting spring (65) is disposed inside the sliding groove (61). One end of the limiting spring (65) is connected to the side wall of the limiting pin (63), and the other end of the limiting spring (65) is connected to the inner wall of the sliding groove (61).