Titanium kettle

Abstract

The utility model discloses a titanium teakettle which comprises a kettle body, a kettle cover and a kettle mouth, the kettle cover is connected with the kettle body in a covering mode, the kettle cover is provided with a lifting ring, the kettle body is provided with a lifting beam, the kettle body is connected with the kettle mouth in a welding mode, and the kettle body and the kettle mouth are of an integrally-formed structure. The kettle body and the kettle nozzle are of an integrally-formed structure, so that the titanium kettle is not welded at other positions except the kettle body and the kettle nozzle, the problems of microstructure damage and performance reduction possibly caused by welding are avoided, and meanwhile the sealing performance, the integrity and the attractiveness of the product are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of containers, in particular to a titanium kettle. Background Art

[0002] With the improvement of modern living standards, people's quality requirements for daily necessities are also constantly increasing. Although traditional kettles made of stainless steel, aluminum or plastic meet basic usage needs, they have certain limitations in terms of health, durability and thermal efficiency. Titanium, as a lightweight, high-strength, corrosion-resistant metal material with excellent biocompatibility and thermal conductivity, has gradually attracted attention.

[0003] However, titanium is difficult to process, especially its welding process is complex and costly. Most titanium kettles on the market currently use traditional welding techniques, such as laser welding and electron beam welding. Although these techniques can achieve the connection of titanium materials, the heat generated during the welding process may affect the microstructure of the titanium material and reduce its performance. At the same time, welding marks may also affect the sealing, integrity and aesthetics of the product, so improvements need to be made to the above problems. Summary of the invention

[0004] The utility model aims at the defects in the prior art such as welding affecting product performance, and provides a new titanium kettle.

[0005] In order to solve the above technical problems, the utility model is implemented through the following technical solutions:

[0006] A titanium kettle comprises a kettle body, a kettle cover and a kettle spout. The kettle cover is connected to the kettle body, the kettle cover is provided with a lifting ring, the kettle body is provided with a lifting beam, the kettle body and the kettle spout are welded and connected, and the kettle body and the kettle spout are an integrally formed structure.

[0007] The kettle body and the spout are both one-piece structures, so that the titanium kettle has no welding except for the welding of the kettle body and the spout, avoiding the microstructural damage and performance degradation that may be caused by welding, while improving the sealing, integrity and aesthetics of the product. The kettle body has undergone 4 progressive stretching, 1 tendon expansion, and 1 water expansion. There is no welding process inside the kettle body, breaking through the bottleneck of water expansion of titanium products. Moreover, the kettle body can also be used for boiling water on induction cookers, electric ceramic stoves, and alcohol stoves, with a wider range of functions and can be applied in more scenarios. The spout is one-piece molded and fits more closely with the kettle body. The titanium kettle is made of titanium material, which is light and high-strength, easy to carry and use, and is durable, corrosion-resistant, highly biocompatible, highly thermally conductive, healthy, and easy to clean.

[0008] Preferably, in the titanium kettle described above, the kettle body is provided with a handle, and the handle is connected to the handle.

[0009] The handle design increases the fixing points of the handle, thereby enhancing the strength and durability of the overall structure. The design of the handle and the handle takes into account the heat insulation effect, reduces the possibility of heat conduction to the user's hands, increases the safety of use, and improves the user experience.

[0010] Preferably, in the titanium kettle described above, a pea pod-like structure is provided on the outer side of the handle.

[0011] The pea pod-like structure design provides a more ergonomic grip experience, increases the comfort when holding, and can also increase the friction between the hand and the handle, improving the stability when holding. When the hands are wet or there is water on the handle surface, the pea pod-like structure can provide a better grip and reduce the risk of slipping. The pea pod-like structure design helps to disperse the pressure of the hand when carrying the kettle and reduce hand fatigue. The pea pod-like structure adds a unique design element to the handle and improves the overall aesthetics of the product.

[0012] Preferably, in the titanium kettle described above, the kettle lid is provided with a through hole, the through hole is provided with an Ω-shaped rivet, and the lifting ring is connected to the Ω-shaped rivet.

[0013] The design of through-hole combined with Ω-shaped rivets may help to tightly connect the handle and lid. The use of Ω-shaped rivets can ensure a firm connection between the handle and lid, reduce the risk of accidental detachment during use, and improve the durability of the connection part, extending the service life of the product. Ω-shaped rivets help reduce the transfer of heat from the lid to the handle, reducing the risk of burns. The design of Ω-shaped rivets allows the lid to be compatible with handles of more shapes and sizes, increasing the applicability of the product.

[0014] Preferably, in the titanium kettle described above, a top sheet is provided on the upper side of the through hole, and a bottom sheet is provided on the lower side of the through hole, and both the top sheet and the bottom sheet cooperate with the Ω-shaped rivet.

[0015] The top and bottom pieces provide additional support and enhance the structural stability of the connection between the lid and the handle. The top and bottom pieces, together with the omega rivets, provide a more even force distribution, ensuring the firmness of the riveting, and also help to disperse stress, reduce wear or damage caused by repeated use, make the connection more stable, and reduce the risk of the lid accidentally falling off during use.

[0016] Preferably, in the titanium kettle described above, the handle is a spiral ring structure.

[0017] The handle with a spiral ring structure can provide a better grip, making the user feel more comfortable when lifting the lid. The spiral shape increases the friction between the handle and the hand, improves stability when lifting, and reduces the risk of slipping. The spiral ring structure can adapt to more sizes and shapes of hands, improving applicability. The spiral ring structure helps to disperse stress and reduce wear or damage caused by repeated use, thereby improving the durability of the handle. The handle design with a spiral ring structure can reduce the risk of deformation or damage of the handle at high temperatures, improving the safety of use. The spiral ring structure brings a unique appearance design to the handle, increasing the beauty and attractiveness of the product.

[0018] Preferably, a manufacturing process of a titanium kettle comprises the following steps:

[0019] S1: Take a titanium disc and perform 4 times of progressive stretching to obtain a semi-finished pot body A with an outer extension and a bottom fillet, cut the mouth of the semi-finished pot body A, and then perform tendon expansion and water expansion to obtain a semi-finished pot body B with an outer step and an inner concave bottom, and the semi-finished pot body B is a "convex" structure;

[0020] S2: laser cutting the mouth of the semi-finished pot body B, flattening, rolling and flattening the mouth to obtain a semi-finished pot body C with an outer flange, punching a water hole and a lifting ear hole on the semi-finished pot body C, and then polishing and crystallizing the semi-finished pot body D with a water hole and a lifting ear hole;

[0021] S3: welding the spout to the water outlet of the semi-finished kettle body D, then polishing the spout, performing a second crystallization on the semi-finished kettle body D to obtain a semi-finished kettle, assembling the ear at the ear hole position of the semi-finished kettle through the ear rivet, the ear is connected with a handle beam, and finally assembling the kettle lid to obtain a titanium kettle.

[0022] Step S1 can use titanium materials more effectively, reduce waste and improve material utilization through progressive stretching. 4 progressive stretching, 1 tendon expansion and 1 water expansion process make the kettle body free of any welding process, breaking through the bottleneck of water expansion of titanium products. Progressive stretching helps to form a uniform wall thickness and enhance the structural integrity and durability of the kettle body. Uniform wall thickness helps to improve the heat conduction efficiency of the titanium kettle and make heating more uniform. Through tendon expansion and water expansion processes, the desired shape can be formed more accurately. Progressive stretching reduces the need for subsequent processing, thereby reducing processing traces, avoiding welding traces, and improving product quality. The semi-finished kettle body B with a "convex" structure has a more stable structure and is conducive to subsequent processing. Progressive stretching and expansion processes can accurately control the shape and size of the product and improve manufacturing accuracy. The design of external extension and bottom fillet can provide better spatial extension stability and ensure the stability of the product during processing. The design of the outer step and the inner concave bottom helps to improve the stability of product processing, and the inner concave bottom reduces the risk of the kettle body tipping over.

[0023] The mouth of the semi-finished pot body B in step S2 adopts a curling and flattening molding process, so that the fit between the pot mouth and the pot lid is tighter, smoother and more natural. The laser cutting head provides high-precision cutting, ensuring the accuracy and consistency of the shape of the pot mouth. The flat mouth, curling mouth and flattening process help to form a smooth and uniform outer flange, improving the quality of the product. The design of the outer flange helps to improve the sealing between the pot lid and the pot body to prevent water leakage. Precise laser cutting reduces material waste and reduces production costs. The process of punching out water holes and ear holes ensures the precise position and size of the holes. The polishing and crystallization process can remove burrs and stress generated during the processing process, and improve the durability and corrosion resistance of the product. The polishing process also makes the product surface smooth and improves the overall aesthetics of the product. The crystallization treatment helps to improve the thermal conductivity of titanium materials and make water boiling more efficient.

[0024] The welding process in step S3 ensures the precise connection between the spout and the kettle body and improves the stability of the overall structure. The welding between the spout and the water outlet can provide a better sealing effect to prevent water leakage. The polishing process makes the welding part smooth and improves the performance and quality of the kettle. The crystallization process helps to improve the thermal conductivity of the titanium material and improve the water boiling efficiency. The welding and crystallization process reduces the influence of the welding seam of the kettle and improves the sealing and integrity of the product.

[0025] Preferably, in the manufacturing process of the titanium kettle described above, in step S1, water swelling molding is carried out by a water swelling mold, and the water swelling mold includes an upper mold cavity and a lower mold cavity which cooperate with each other, a mold core is arranged between the upper mold cavity and the lower mold cavity, an upper core seat is arranged on the upper side of the mold core, a lower core seat is arranged on the lower side of the mold core, an upper mold bottom plate is arranged on the upper side of the upper core seat, the upper mold cavity and the upper core seat are both fixed to the upper mold bottom plate, a lower mold bottom plate is arranged on the lower side of the lower core seat, a pushing spring is arranged between the lower core seat and the lower mold bottom plate, a lower mold heightening block is fixed to the lower side of the lower mold cavity, and the lower mold heightening block is fixed to the lower mold bottom plate.

[0026] The use of water-rising molds for forming can accurately control the shape and size of the semi-finished pot body and ensure product quality. Precise mold design reduces material waste, improves material utilization, ensures consistency of each product, and improves the stability of product quality. The use of water-rising molds can evenly distribute the stress of the material, enhance the structural strength of the product, reduce burrs and marks that may be generated by traditional processing methods, and improve the performance and quality of the product. The mutual cooperation of the upper and lower mold cavities ensures accurate control of the material during the forming process, thereby obtaining a consistent product shape. The use of the mold core provides a central support, enhances the stability during the forming process, and helps to maintain the uniform distribution of the material during the forming process. The use of the upper mold base and the lower mold base provides a solid foundation for the mold, increasing the durability and service life of the mold. The fixed relationship between the upper mold cavity and the upper core seat and the lower core seat and the lower mold base ensures accurate alignment between the mold components and reduces forming errors. The use of the push spring simplifies the process of pushing out the blanks after forming and improves production efficiency. The design of the lower mold heightening block allows the mold to adapt to more thick materials, increasing the versatility and flexibility of the mold. The upper and lower core seats on the upper and lower sides of the mold core help reduce wrinkles and cracks in the material during the forming process. The reasonable layout of the mold core, upper core seat, lower core seat and bottom plate helps optimize the distribution of forming force and improve the forming quality. The modular design makes the various components of the mold easy to inspect and maintain, reducing long-term operating costs.

[0027] Preferably, in the manufacturing process of the titanium kettle described above, the handle and the kettle lid are both formed by stretching and stamping.

[0028] Stretch stamping is an efficient production method that can quickly produce a large number of handles and lids with high consistency. Due to the high production efficiency, it reduces labor and time costs, thereby reducing the production cost of a single product. Stamping can ensure that the size and shape of each handle and lid are highly consistent, improve product quality, and can also reduce material waste and improve material utilization. Stretch stamping can optimize the stress distribution of the material and enhance the structural strength of the handle and lid. Due to the improved structural strength, the durability of the handle and lid is enhanced, extending the service life of the product.

[0029] Preferably, in the above-mentioned manufacturing process of a titanium kettle, the thickness of the titanium disc is 0.6 mm to 1.0 mm.

[0030] The thickness range of 0.6mm to 1.0mm provides a good weight-to-strength ratio for titanium kettles, making the product both light and strong. This thickness range helps to improve the thermal conductivity of titanium materials, making water boil faster and more evenly. While ensuring sufficient strength and durability, titanium discs in this thickness range can reduce the use of materials and reduce costs. Titanium discs in this thickness range are easier to form through processes such as stretching and stamping, and can adapt to complex shape designs. During processing and use, titanium discs in this thickness range can reduce the risk of deformation caused by heat treatment or use, and improve stability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the titanium kettle in the utility model;

[0032] Figure 2 It is a cross-sectional schematic diagram of the titanium kettle in the utility model;

[0033] Figure 3 It is a structural schematic diagram of the bottom film in the utility model;

[0034] Figure 4 It is a schematic diagram of the structure of the top sheet in the utility model;

[0035] Figure 5 This is a schematic diagram of the structure of the Ω-shaped rivet in the utility model;

[0036] Figure 6 It is a structural schematic diagram of the lug rivet in the utility model;

[0037] Figure 7 It is a schematic diagram of the structure of the titanium disc in the utility model;

[0038] Figure 8 It is a schematic diagram of the structure of the titanium disc in the utility model after the first progressive stretching;

[0039] Fig. 9 It is a schematic diagram of the structure of the titanium disc in the utility model after the second progressive stretching;

[0040] Fig.10 It is a schematic diagram of the structure of the titanium disc in the utility model after the third progressive stretching;

[0041] Fig.11 This is a schematic structural diagram of a semi-finished pot body A in the utility model;

[0042] Fig.12 It is a schematic diagram of the cutting head of the semi-finished pot body A in the utility model;

[0043] Fig.13 It is a schematic diagram of the structure of the semi-finished pot body A after the tendon is expanded in the utility model;

[0044] Fig.14 This is a schematic structural diagram of a semi-finished pot body B in the utility model;

[0045] Fig.15 It is a cross-sectional schematic diagram of the water swelling mold in the utility model;

[0046] Fig.16 It is a schematic diagram of the laser cutting head of the semi-finished pot body B in the utility model;

[0047] Fig.17 This is a schematic diagram of the structure of the semi-finished pot body B after the flat mouth in the utility model;

[0048] Fig.18 This is a schematic diagram of the structure of the semi-finished pot body B after the mouth is rolled in the utility model;

[0049] Fig.19 This is a schematic structural diagram of a semi-finished pot body C in the utility model;

[0050] Fig. 20 This is a schematic diagram of the structure of the semi-finished pot body C in the utility model after the water hole is punched out;

[0051] Fig.21 It is a schematic diagram of the structure of the semi-finished pot body C in the utility model after punching the ear holes;

[0052] Fig. 22 This is a schematic structural diagram of a semi-finished pot body D in the utility model;

[0053] Fig.23 This is a schematic diagram of the structure of a semi-finished kettle in the utility model;

[0054] Fig.24 The utility model is a schematic structural diagram of a semi-finished kettle after being equipped with a handle and a handle. DETAILED DESCRIPTION

[0055] The following is combined with Figure 1-24 The present invention is further described in detail with the following specific embodiments, but they are not intended to limit the present invention:

[0056] Example 1

[0057] A titanium kettle comprises a kettle body 1, a kettle cover 2, and a kettle spout 11. The kettle cover 2 is connected to the kettle body 1, the kettle cover 2 is provided with a lifting ring 21, the kettle body 1 is provided with a lifting beam 12, the kettle body 1 is welded to the kettle spout 11, and the kettle body 1 and the kettle spout 11 are both integrally formed structures.

[0058] Preferably, the kettle body 1 is provided with a lifting ear 13 , and the handle 12 is connected to the lifting ear 13 .

[0059] Preferably, a pea pod-like structure 14 is provided on the outer side of the handle 12 .

[0060] Preferably, the pot cover 2 is provided with a through hole 22 , the through hole 22 is provided with an Ω-shaped rivet 23 , and the lifting ring 21 is connected to the Ω-shaped rivet 23 .

[0061] Preferably, a top sheet 24 is disposed on the upper side of the through hole 22 , and a bottom sheet 25 is disposed on the lower side of the through hole 22 . Both the top sheet 24 and the bottom sheet 25 cooperate with the Ω-shaped rivet 23 .

[0062] Preferably, the lifting ring 21 is a spiral ring structure.

[0063] Preferably, a manufacturing process of a titanium kettle comprises the following steps:

[0064] S1: Take a titanium disc 3 and perform progressive stretching 4 times to obtain a semi-finished pot body A312 with an outer extension 31 and a bottom fillet 311, cut the mouth of the semi-finished pot body A312, and then perform tendon expansion and water expansion to obtain a semi-finished pot body B322 with an outer step 32 and an inner concave bottom 321. The semi-finished pot body B322 is a "convex" structure;

[0065] S2: The mouth of the semi-finished pot body B322 is laser cut, and then the mouth is flattened, rolled, and flattened to obtain a semi-finished pot body C331 with an outer flange 33. The semi-finished pot body C331 is punched with a water hole and a lifting ear hole, and then polished and crystallized to obtain a semi-finished pot body D342 with a water hole 34 and a lifting ear hole 341;

[0066] S3: Weld the spout 11 to the water outlet 34 of the semi-finished kettle body D342, then polish the spout 11, perform a second crystallization on the semi-finished kettle body D342 to obtain a semi-finished kettle 35, assemble the ear 13 at the ear hole 341 of the semi-finished kettle 35 through the ear rivet 36, the ear 13 is connected to the handle beam 12, and finally assemble the pot lid 2 to obtain a titanium kettle.

[0067] Preferably, in step S1, the water swelling molding is carried out by a water swelling mold, and the water swelling mold includes an upper mold cavity 4 and a lower mold cavity 41 which cooperate with each other, a mold core 42 is arranged between the upper mold cavity 4 and the lower mold cavity 41, an upper core seat 43 is arranged on the upper side of the mold core 42, a lower core seat 44 is arranged on the lower side of the mold core 42, an upper mold bottom plate 45 is arranged on the upper side of the upper core seat 43, the upper mold cavity 4 and the upper core seat 43 are both fixed to the upper mold bottom plate 45, a lower mold bottom plate 46 is arranged on the lower side of the lower core seat 44, a push spring 47 is arranged between the lower core seat 44 and the lower mold bottom plate 46, a lower mold heightening block 48 is fixed to the lower side of the lower mold cavity 41, and the lower mold heightening block 48 is fixed to the lower mold bottom plate 46.

[0068] Preferably, the handle 12 and the pot lid 2 are both formed by stretching and stamping.

[0069] Preferably, the thickness of the titanium disc 3 is 0.6 mm to 1.0 mm.

[0070] like Figure 1-2 As shown, the titanium kettle has no welding except for the kettle body 1 and the spout 11. A pea pod-like structure 14 is provided at the arc position in the middle of the outer side of the handle 12. Both ends of the handle 12 are connected to the handle 13 through a wrapping structure from bottom to outside and then inside. The handle ring 21 is a spiral ring structure, and a long cylindrical material is spirally interlaced to form a threaded ring.

[0071] like Figure 3-4 As shown, the top sheet 24 and the bottom sheet 25 are both formed by stamping and CNC. The top sheet 24 is also provided with a hollow stamping mark.

[0072] like Figure 5-6 As shown, the Ω-shaped rivet 23 is of a quasi-Ω shape, and the lug rivet 36 is of a standard type.

[0073] like Figure 7 As shown, the thickness of the titanium disc 3 can be 0.6mm, 0.8mm or 1.0mm, with 0.8mm being the most preferred. The diameter of the titanium disc 3 can range from 235mm to 255mm, and the diameter of the titanium disc 3 can be 235mm, 245mm or 255mm, with 245mm being the most preferred. The subsequent description is based on the premise that the titanium disc 3 has a thickness of 0.8mm and a diameter of 245mm.

[0074] like Figure 8-11 As shown, the titanium disc 3 was progressively stretched four times to obtain a semi-finished pot body A312 having an outer extension 31 and a bottom fillet 311. After the first progressive stretching, the titanium disc 3 was cylindrical, with an outer diameter of 169.6±0.2mm, an outer height of 48±0.5mm, and a diameter of 176±2mm after the outer extension 31 was taken into account. After the second progressive stretching, the outer diameter was 141.6±0.2mm, the outer height was 81±0.5mm, the diameter of 153±2mm after the outer extension 31 was taken into account, and the arc radius of the bottom fillet 311 was 6.5mm. After the third progressive stretching, the outer diameter was 116.6±0.2mm, the outer height was 130±1mm, the diameter of 126±2mm after the outer extension 31 was taken into account, and the arc radius of the bottom fillet 311 was 6mm. After the fourth progressive stretching, the outer diameter of the semi-finished pot body A312 is 96.1±0.2mm, the outer height is 166±1mm, the diameter after the outer extension 31 is included is 105±2mm, and the arc radius of the bottom fillet 311 is 8.8mm. The outer height is the height calculated from the outermost side.

[0075] like Fig.12 As shown, after the semi-finished pot body A312 is cut, the outer height is 152±0.5mm.

[0076] like Fig.13 As shown, after the semi-finished pot body A312 tendon is expanded, the maximum outer diameter of the pot body is 144.7±0.4mm, the outer diameter of the pot mouth is 96±0.2mm, the outer height of the pot is 110mm, the arc radius of the curved part of the pot body is 56.5mm, and the arc radius of the reverse bend at the junction of the curved part of the pot body and the pot mouth is 5mm.

[0077] like Fig.14 As shown, after water swelling, a semi-finished pot body B322 with an outer step 32 and an inner concave bottom 321 is obtained. The semi-finished pot body B322 is a "convex" structure, with a maximum outer diameter of 146.8±0.2mm, an outer diameter of 95.4±0.3mm, an outer diameter of 96.83±0.2mm after removing the outer step 32, a height outside the pot of 105mm, a height of the curved part of the pot body of 71.5mm, and a maximum depth of the inner concave bottom 321 of 2.5mm.

[0078] like Fig.15 As shown, the water swelling molding is carried out through a water swelling mold, and the 4 screw fixations in the figure are all M10 screws.

[0079] like Fig.16 As shown, after the semi-finished pot body B322 laser cutting head, the outer height of the pot is 82.4±0.2mm.

[0080] like Fig.17 As shown, after the semi-finished pot body B322 is flattened, the outer height of the pot is 81.4±0.2mm.

[0081] like Fig.18 As shown, after the semi-finished pot body B322 is rolled, the outer height of the pot is 76.3±0.2mm.

[0082] like Fig.19 As shown, after the semi-finished pot body B322 is flattened, a semi-finished pot body C331 with an outer flange 33 is obtained, and the outer height of the pot is 76.3±0.2mm.

[0083] like Fig. 20 As shown, after the semi-finished pot body C331 is flushed with water holes, the diameter of the water holes 34 is 19.0 mm.

[0084] like Fig.21 As shown, after the semi-finished pot body C331 is punched with the ear holes, the diameters of the four ear holes 341 are all 2.5 mm, and the water outlet 34 is located on the central symmetry line of the four ear holes 341.

[0085] like Fig. 22 As shown, after the semi-finished pot body C331 is polished and crystallized, a semi-finished pot body D342 is obtained.

[0086] like Fig.23 As shown, a semi-finished kettle 35 having a spout 11 is obtained.

[0087] like Fig.24 As shown, the handle 13 and the handle 12 are assembled on the semi-finished kettle 35.

[0088] In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the patent application for the present invention should fall within the scope of the present invention.

Claims

1. A titanium kettle, comprising a kettle body (1) and a kettle cover (2), characterized in that: The invention also comprises a spout (11), the lid (2) being connected to the body (1) by covering, the lid (2) being provided with a handle (21), the body (1) being provided with a handle (12), the body (1) being connected to the spout (11) by welding, and the body (1) and the spout (11) being an integrally formed structure.

2. A titanium kettle according to claim 1, characterized in that: The kettle body (1) is provided with a lifting lug (13), and the lifting beam (12) is connected to the lifting lug (13).

3. The titanium kettle according to claim 1, characterized in that: A pea pod-like structure (14) is provided on the outer side of the handle (12).

4. The titanium kettle according to claim 1, characterized in that: The pot cover (2) is provided with a through hole (22), the through hole (22) is provided with an Ω-shaped rivet (23), and the lifting ring (21) is connected to the Ω-shaped rivet (23).

5. The titanium kettle according to claim 4, characterized in that: A top sheet (24) is arranged on the upper side of the through hole (22), and a bottom sheet (25) is arranged on the lower side of the through hole (22). Both the top sheet (24) and the bottom sheet (25) cooperate with the Ω-shaped rivet (23).

6. The titanium kettle according to claim 1, characterized in that: The lifting ring (21) is a spiral ring structure.

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