CN213640447U

CN213640447U - Titanium cup with heating function

Info

Publication number: CN213640447U
Application number: CN202022866296.9U
Authority: CN
Inventors: 张威男
Original assignee: Individual
Current assignee: Titania Junchuang Jinhua Holding Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-07-09
Anticipated expiration: 2030-12-02

Abstract

The utility model provides a titanium cup with heating function and manufacturing process thereof, which belongs to the technical field of vacuum cups. The method solves the technical problems of complicated process steps and the like in the prior art. The titanium cup comprises a shell and a liner, wherein the shell and the liner are both made of titanium metal or titanium alloy materials, the liner is inserted into the shell, the upper end of the shell and the upper end of the liner are fixedly connected in a sealing mode, a vacuum layer is arranged between the shell and the liner, an opening is formed in the lower end of the liner, and the liner is internally positioned at the opening or is close to the opening and welded with a liner bottom. The utility model provides a titanium cup and preparation technology can enough utilize titanium soldering paste to carry out the evacuation under high temperature environment and seal, simplifies the evacuation technology, and save material can effectively protect the dish that generates heat again.

Description

Titanium cup with heating function

Technical Field

The utility model belongs to the technical field of vacuum cups, and relates to a titanium cup; in particular to a titanium cup with a heating function.

Background

The vacuum cup is a common daily product, can preserve heat and store water or other liquid and the like, is a container which is usually made of ceramic or stainless steel and a vacuum layer, has a heat preservation cover at the top, is tightly sealed, and can play a role of delaying heat dissipation to achieve heat preservation by the vacuum layer. The inner container of the existing vacuum cup is made of stainless steel, the phenomenon of heavy metal precipitation exists, the taste of the beverage can be influenced when the vacuum cup is used for a long time, the beverage is easy to deteriorate, the beverage can corrode the stainless steel gradually to cause the inner container to be damaged, and the service life of the vacuum cup is influenced. In view of the above circumstances, various vacuum cups made of titanium materials have been developed. Titanium is a very particular metal known as "space metal". The vacuum cup made of the material has the characteristics of light weight, toughness, heat resistance, acid and alkali resistance and strong rust resistance, can keep the color tone of the vacuum cup for a long time, does not have heavy metal ions to be separated out, is sanitary and healthy, and is popular with people.

For example, Chinese patent (publication No. CN206518417U, published as 2017-09-26) discloses a titanium vacuum cup, which comprises a titanium metal inner container and a metal shell, wherein an arc-shaped bent edge is arranged outwards on the cup mouth of the titanium metal inner container, the cup mouths of the titanium metal inner container and the metal shell are in the same direction, the cup mouth of the metal shell and the arc-shaped bent edge of the titanium metal inner container are matched, correspondingly welded and fixed, the metal shell is formed by compounding titanium metal and stainless steel materials, the titanium metal and the stainless steel materials are in close contact in the axial direction, and a titanium-stainless steel composite transition ring is welded at the contact part of the titanium metal and the stainless steel materials.

When a vacuum layer is formed by utilizing a vacuumizing structure of the existing titanium vacuum cup, because glass cement is not good in compatibility with titanium metal or titanium alloy and can be well compatible with stainless steel for adhesion, a stainless steel transition structure is usually arranged at a vacuumizing through hole at the bottom, and the vacuumizing through hole is blocked by utilizing the glass cement after vacuumizing; the process is complicated, and a stainless steel part needs to be additionally arranged, so that the production efficiency and the texture of the product are influenced. Therefore, the invention discloses a process for plugging the vacuum-pumping through hole by directly utilizing materials such as titanium soldering paste and the like in a high-temperature environment.

In order to meet the requirements of more functions of the vacuum cup, the vacuum cup can heat water in the cup, or timely supplement heat when the temperature of the water in the cup is reduced, so as to keep the water temperature, people invent titanium cups with heating functions; for example, Chinese patent (publication No. CN210055526U, bulletin date: 2020-02-14) discloses an automatic heating double-layer vacuum cup, which comprises a cup body, a control panel, a cup cover, a sealing ring, a cup seat, a heater, a temperature sensor, a weight sensor, a solar panel and a storage battery, wherein the cup body comprises a titanium metal shell, a titanium metal liner and a cup mouth, the titanium metal liner is arranged inside the titanium metal shell, the upper ends of the titanium metal shell and the titanium metal liner are arranged into the cup mouth, the cup cover is arranged on the cup mouth, the sealing ring is arranged at the joint of the cup mouth and the cup cover, the titanium metal shell and the titanium metal liner form a clearance cavity, the cup seat is arranged at the bottom of the titanium metal shell, the cup seat is a cavity cup seat, the storage battery is arranged in the cavity of the cup seat, the bottom of the titanium metal liner is closely provided with the temperature sensor, the heater and the, solar panels are arranged on the outer walls of the two side surfaces of the titanium metal shell.

The heaters of the titanium cups having the heating function in the above patent documents and other prior arts generally use materials that melt at a relatively low temperature, such as aluminum heat pipes; when the titanium cup is manufactured, all parts are generally assembled firstly, and then a vacuumizing process is performed finally, if a process of directly plugging a vacuumizing through hole by using materials such as titanium soldering paste and the like in a high-temperature environment is adopted, a heater is damaged, so that the traditional process of plugging the vacuumizing through hole by using glass cement can be only adopted, a stainless steel transition structure needs to be purchased and welded, and the process steps are complicated.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides a titanium cup with a heating function, which aims to solve the technical problems that: how to simplify the manufacturing process of the titanium cup with the heating function and ensure the stability and the reliability of the assembly of the titanium cup.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a titanium cup with heating function, includes shell and the inner bag that all adopts titanium metal or titanium alloy material to make, the inner bag is inserted and is established in the shell, the upper end of shell and the upper end of inner bag are sealed to be linked firmly, have the vacuum layer between shell and the inner bag, its characterized in that, the lower extreme of inner bag has the opening, be located in the inner bag the opening part or be close to the opening part welding has the inner bag end, the inner bag end adopts titanium metal or titanium alloy material to make, the bottom at the inner bag end has set firmly the dish that generates heat, the lower extreme of shell and the lower extreme of inner bag are sealed to be linked firmly just the lower extreme of shell and/or inner bag is equipped with vacuum structure.

The principle is as follows: in the technical scheme, the outer shell and the inner container are coaxially arranged; the inner container and the shell are both made of titanium metal or titanium alloy, the inner container has high heat resistance and corrosion resistance, and also has a bacteriostatic action, and the inner container is in direct contact with water, so that the cleanliness of the water can be ensured, and the inner container is healthy and sanitary; because titanium is ultra-light and ultra-hard metal, under the same capacity, the titanium cup is 43 percent of the weight of the stainless steel vacuum cup, has light weight and is convenient to be carried out when the titanium cup is taken out; as titanium is used as an inert metal and does not react with other substances below 1000 ℃, the titanium cup can be used for drinking tea, milk, beverages and the like, according to experiments, the milk can be kept for a week after being poured into the titanium cup, the milk taste is still mellow and fragrant, and the titanium cup does not have any residual taste after being used. The titanium metal of the titanium cup gives out natural color and luster, has the effects of no fading and no discoloration for a long time, can withstand the carving for a long time and is up to new over a long time. The bottom materials of the shell, the inner container and the inner container in the titanium cup are the same, so that the titanium cup is convenient to assemble and weld. During assembly, the inner container is placed in the shell, the upper ends of the inner container and the outer container are fixedly connected by welding, the lower end of the outer container and the lower end of the inner container can be directly fixedly connected by welding, and at the moment, the vacuumizing structure is arranged on the inner container or the outer container; or the lower end of the shell and the lower end of the inner container can be fixedly connected by welding through the cup bottom shell, and the vacuumizing structure is arranged on the cup bottom shell; then utilize the evacuation structure to carry out evacuation and seal, weld the inner bag end that has the dish that generates heat at last, through evacuation earlier like this, the damage that the dish that generates heat caused can be prevented to evacuation under the high temperature environment through the process steps at the bottom of welding the inner bag again. The whole titanium cup is simple in structure and stable and reliable in positioning. Compared with the existing titanium vacuum cup, the technical scheme has the advantages that the titanium soldering paste can be utilized to vacuumize and seal the opening in a high-temperature environment, the vacuumizing process is simplified, materials are saved, and the heating plate can be effectively protected.

In the titanium cup with the heating function, the height of the shell is greater than that of the inner container, and the lower end of the shell extends to the lower part of the inner container; the lower end of the shell and the lower end of the inner container are provided with a cylindrical cup bottom shell, and the vacuumizing structure is arranged on the cup bottom shell. During assembly, the cup bottom shell is fixedly connected to the lower end of the shell and the lower end of the inner container in a welding mode, and the inner container bottom is installed after the vacuum pumping structure is used for vacuumizing and sealing in a vacuum high-temperature furnace.

In the titanium cup with the heating function, the cup bottom shell is made of titanium metal or titanium alloy material, and the vacuumizing structure comprises a first air exhaust through hole which is formed in the cup bottom shell and communicated with the vacuum layer.

In the titanium cup with the heating function, the lower end of the inner container is in a straight cylinder shape, the lower end of the outer shell is provided with an inward bent necking part, the lower end of the cup bottom shell is provided with an expanding part, the outer peripheral surface of the expanding part is attached to the inner wall of the necking part, and the outer peripheral surface of the expanding part and the inner wall of the necking part are welded; the upper end of the cup bottom shell is provided with a bending part formed by bending twice inwards and downwards, the side surface of the bending part is attached to the outer peripheral surface of the lower end of the inner container, and the two parts are welded. Furthermore, the lower end face of the necking part is flush with the lower end face of the flaring part, the height of the necking part is larger than that of the flaring part, and the joint of the body of the cup bottom shell and the flaring part is in inclined smooth transition. A gap is arranged between the body of the cup bottom shell and the inner wall of the flared part above the necking part, and the gap can be used for placing welding flux during welding; in a similar way, the upper end bending part of the cup bottom shell can also be used for placing welding flux, so that the cup bottom shell is fixedly connected with the inner container and the outer shell in a welding manner, and meanwhile, the stability and the sealing property of the connection of the three are ensured by increasing the contact area between the cup bottom shell and the inner container as well as between the cup bottom shell and the outer shell.

In the titanium cup with the heating function, the outer peripheral edge of the bottom of the inner container is provided with a downward bent folded edge, the outer peripheral surface of the folded edge is attached to the inner wall of the lower end of the inner container, and the outer peripheral surface of the folded edge and the inner wall are welded. Therefore, the contact area between the bottom of the inner container and the inner container can be increased, and the connection stability and the connection tightness of the inner container and the inner container are ensured.

In the titanium cup with the heating function, as an optimized scheme for installing and connecting the bottom of the inner container, the lower end of the inner container is provided with a step part formed by bending the outer side and the lower side for two times, and the step part is provided with a downward abutting step surface; the outer periphery of the liner bottom is provided with a folded edge which is bent downwards, the upper side face of the liner bottom close to the outer edge is abutted against the abutting step face, the outer periphery of the folded edge is abutted against the inner side face of the step portion, and the folded edge and the inner side face are welded together. Thus, the positioning and the limiting during the installation of the inner container bottom are facilitated, and the stability and the sealing property of the connection between the inner container bottom and the inner container are improved.

In the titanium cup with the heating function, as another scheme, the end surface of the lower end of the shell is flush with the end surface of the lower end of the inner container, the inner wall of the lower end of the shell is attached to the outer peripheral surface of the lower end of the inner container, and the inner wall and the outer peripheral surface are fixedly welded; the inner container is characterized in that an annular abutting convex rib formed by an inner recess is arranged on the inner wall of the lower end of the inner container, an inclined abutting surface I is arranged on the lower side of the abutting convex rib, the outer peripheral edge of the bottom of the inner container is inclined downwards and bent to form an inclined abutting surface II, and the inclined abutting surface I and the inclined abutting surface II abut against each other and are welded with each other. Thus, the structure of the cup bottom shell is omitted, and the process is simplified.

In the titanium cup with the heating function, the vacuumizing structure is a second air exhaust through hole which is formed in the side wall of the lower end of the inner container and communicated with the vacuum layer.

In the titanium cup with the heating function, as a third solution, the lower end face of the outer shell is flush with the lower end face of the inner container, the lower end of the outer shell has a necking part formed by bending inward, the lower end of the inner container has a flared flange formed by bending outward and downward, the outer peripheral surface of the flared flange abuts against the inner wall of the necking part, and the flared flange and the inner wall are welded; the inner container is characterized in that the inner wall of the lower end of the inner container is provided with an annular abutting bulge formed by an inner recess, the outer peripheral edge of the bottom of the inner container is provided with a folded edge bent downwards, the outer peripheral surface of the folded edge abuts against the side surface of the abutting bulge, and the two are welded. Further, the hem highly be higher than to lean on bellied height for can not see the joint seam between the inner bag end and the inner bag from the oral area downward of inner bag, the lower extreme terminal surface downwardly protruding of hem is in support to lean on bellied downside, and the outer peripheral face of hem is located to lean on to have the space between the inner wall of protruding below with the inner bag, inlays in this space to establish and welds the reinforcement, thereby guarantees the firm reliability of being connected with the inner bag at the bottom of the inner bag.

In the titanium cup with the heating function, the vacuumizing structure is a third air exhaust through hole which is formed in the side wall of the lower end of the shell and is positioned at the joint of the shell body and the necking part.

In the titanium cup with the heating function, the upper end of the inner container is provided with a flange which is turned outwards, the peripheral surface of the flange is attached to the inner wall of the upper end of the shell, and the flange and the inner wall are welded. Therefore, the contact area between the inner container and the outer shell can be increased, welding is facilitated, and the connection stability and the connection tightness of the inner container and the outer shell are guaranteed.

In the titanium cup with the heating function, the heating disc is made of an aluminum heat pipe and is welded at the bottom of the inner container bottom; or the heating plate is a metal ceramic heating coating arranged at the bottom of the inner container. The metal ceramic heating coating is a novel metal ceramic heating element with PTC effect, compared with the traditional BaTiO 3-based PTC heating element, the metal ceramic heating coating is an environment-friendly heating element without lead, and has the characteristics of uncharged surface, high heating speed, small volume, heating temperature up to 1000 ℃ and the like; the technological process includes spreading alumina casting green porcelain as insulating layer and base body, wiring and printing high temperature metal thick film slurry on one side of the green porcelain, laminating the upper and lower alumina green porcelain, slicing, high temperature sintering in hydrogen furnace to form the heating body, and welding lead wire to form the MCH heating body.

The welding in the above technical scheme is preferably laser welding.

Compared with the prior art, the utility model provides a titanium can enough utilize titanium soldering paste to carry out the evacuation under high temperature environment and seal, simplifies evacuation technology, and save material can effectively protect the dish that generates heat again.

Drawings

FIG. 1 is a sectional view of a titanium cup according to a first embodiment of the present invention.

FIG. 2 is a sectional view of the titanium cup in the second embodiment.

FIG. 3 is a sectional view of the titanium cup in the third embodiment.

FIG. 4 is a sectional view of the titanium cup in the fourth embodiment.

In the figure, 1, a housing; 11. a necking part; 12. a third air exhaust through hole; 2. an inner container; 21. an opening; 22. a step portion; 22a, abutting against the step surface; 23. abutting against the convex rib; 23a, a first inclined abutting surface; 24. a second air exhaust through hole; 25. a flaring flange; 26. an abutting projection; 27. flanging; 3. a vacuum layer; 4. the bottom of the inner container; 41. folding edges; 42. a second inclined abutting surface; 5. a heating plate; 6. a cup bottom shell; 61. a first air exhaust through hole; 62. a flared part; 63. a bending section; 7. a reinforcement.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1, the titanium cup with the heating function comprises a shell 1 and a liner 2 which are both made of titanium metal or titanium alloy material, the liner 2 is inserted into the shell 1, the upper end of the shell 1 is fixedly connected with the upper end of the liner 2 in a sealing manner, a vacuum layer 3 is arranged between the shell 1 and the liner 2, the lower end of the liner 2 is provided with an opening 21, a liner bottom 4 is welded at the position of the opening 21 or close to the opening 21 in the liner 2, the liner bottom 4 is made of titanium metal or titanium alloy material, a heating disc 5 is fixedly arranged at the bottom of the liner bottom 4, the lower end of the shell 1 is fixedly connected with the lower end of the liner 2 in a sealing manner, and the lower end of the shell 1 and/or the liner 2 is provided with a vacuum pumping structure. Further, the height of the outer shell 1 is greater than that of the inner container 2, and the lower end of the outer shell 1 extends to the lower part of the inner container 2; a cylindrical cup bottom shell 6 is arranged at the lower end of the shell 1 and the lower end of the inner container 2, the cup bottom shell 6 is made of titanium metal or titanium alloy material, and a vacuumizing structure is arranged on the cup bottom shell 6; the vacuum pumping structure comprises a first air pumping through hole 61 which is arranged on the cup bottom shell 6 and communicated with the vacuum layer 3.

In the embodiment, the outer shell 1 and the inner container 2 are coaxially arranged; the inner container 2 and the shell 1 are both made of titanium metal or titanium alloy, the inner container has high heat resistance and corrosion resistance, and also has a bacteriostatic action, and the inner container 2 is in direct contact with water, so that the cleanliness of the water can be ensured, and the inner container is healthy and sanitary; because titanium is ultra-light and ultra-hard metal, under the same capacity, the titanium cup is 43 percent of the weight of the stainless steel vacuum cup, has light weight and is convenient to be carried out when the titanium cup is taken out; as titanium is used as an inert metal and does not react with other substances below 1000 ℃, the titanium cup can be used for drinking tea, milk, beverages and the like, according to experiments, the milk can be kept for a week after being poured into the titanium cup, the milk taste is still mellow and fragrant, and the titanium cup does not have any residual taste after being used. The titanium metal of the titanium cup gives out natural color and luster, has the effects of no fading and no discoloration for a long time, can withstand the carving for a long time and is up to new over a long time. The outer shell 1, the inner container 2 and the inner container bottom 4 in the titanium cup are made of the same material, so that the titanium cup is convenient to assemble and weld. Place inner bag 2 in shell 1 during the assembly, earlier with both upper ends welding link firmly, then the welding links firmly both lower extreme, the lower extreme of shell 1 also welds through setting up cup drain pan 6 with the lower extreme of inner bag 2 and links firmly, utilizes the evacuation structure to carry out the evacuation and seals, welds 4 at the bottom of the inner bag that has dish 5 that generates heat at last, through evacuation earlier like this, the process steps of welding 4 at the bottom of the inner bag can prevent the damage that the dish 5 caused of generating heat under the high temperature environment evacuation. The whole titanium cup is simple in structure and stable and reliable in positioning. Compared with the existing titanium vacuum cup, the vacuum cup can be vacuumized and sealed by utilizing the titanium soldering paste under the high-temperature environment, the vacuum process is simplified, materials are saved, and the heating plate 5 can be effectively protected.

Furthermore, as shown in fig. 1, the lower end of the inner container 2 is in a straight cylinder shape, the lower end of the outer shell 1 is provided with a necking part 11 which is bent inwards, the lower end of the cup bottom shell 6 is provided with a flaring part 62, the outer peripheral surface of the flaring part 62 is abutted against the inner wall of the necking part 11, and the two are welded; the upper end of the cup bottom shell 6 is provided with a bending part 63 formed by bending twice inwards and downwards, the side surface of the bending part 63 is attached to the outer peripheral surface of the lower end of the inner container 2 and the two are welded. The lower end face of the throat 11 is flush with the lower end face of the flared part 62, the height of the throat 11 is greater than that of the flared part 62, and the joint between the body of the cup bottom shell 6 and the flared part 62 is in inclined smooth transition. A gap is arranged between the body of the cup bottom shell 6 and the inner wall of the flared part 62 above the necking part 11, and the gap can be used for placing solder during welding; in a similar way, the upper end bending part 63 of the cup bottom shell 6 can also be used for placing welding flux, so that the cup bottom shell 6 is fixedly connected with the inner container 2 and the outer shell 1 in a welding manner, and meanwhile, the stability and the sealing property of the connection of the three are ensured by increasing the contact area between the cup bottom shell 6 and the inner container 2 as well as between the cup bottom shell and the outer shell 1.

As shown in fig. 1, the outer periphery of the inner container bottom 4 has a folded edge 41 bent downward, and the outer periphery of the folded edge 41 is against the inner wall of the lower end of the inner container 2 and welded thereto. Therefore, the contact area between the liner bottom 4 and the liner 2 can be increased, and the connection stability and the connection tightness of the liner bottom and the liner are ensured. The upper end of the inner container 2 is provided with a flange 27 which is folded outwards, the peripheral surface of the flange 27 is attached to the inner wall of the upper end of the shell 1 and the two are welded. Therefore, the contact area between the inner container 2 and the outer shell 1 can be increased, welding is facilitated, and the connection stability and the connection tightness of the inner container and the outer shell are guaranteed.

In the embodiment, the heating plate 5 is made of an aluminum heat pipe and is welded at the bottom of the inner container bottom 4; or the heating plate 5 is a metal ceramic heating coating arranged at the bottom of the inner container bottom 4. The welding in this embodiment is preferably laser welding.

Example two

As shown in fig. 2, the present embodiment is substantially the same as the first embodiment, except that, in the present embodiment, as an optimized solution for mounting and connecting the liner bottom 4, the lower end of the liner 2 has a step portion 22 formed by bending twice to the outside and the downward side, and the step portion 22 has a downward abutting step surface 22 a; the outer peripheral edge of the inner container bottom 4 is provided with a folded edge 41 which is bent downwards, the upper side face of the inner container bottom 4 close to the outer edge is abutted against the abutting step face 22a, the outer peripheral face of the folded edge 41 is abutted against the inner side face of the step part 22, and the inner side face and the outer side face are welded. Make things convenient for location and spacing when the installation of inner bag end 4 like this, promoted the steadiness and the leakproofness that the inner bag end 4 is connected with inner bag 2.

EXAMPLE III

As shown in fig. 3, the present embodiment is substantially the same as the first or second embodiment, except that in the present embodiment, the lower end surface of the outer shell 1 is flush with the lower end surface of the inner container 2, the inner wall of the lower end of the outer shell 1 is attached to the outer peripheral surface of the lower end of the inner container 2, and the two are welded and fixedly connected; an annular abutting convex rib 23 formed by concave inwards is arranged on the inner wall of the lower end of the inner container 2, a first inclined abutting surface 23a is arranged on the lower side abutting against the convex rib 23, the outer peripheral edge of the inner container bottom 4 is inclined downwards and bent to form a second inclined abutting surface 42, the first inclined abutting surface 23a is abutted against the second inclined abutting surface 42, and the first inclined abutting surface 23a and the second inclined abutting surface are welded; the vacuumizing structure is a second air exhaust through hole 24 which is arranged on the side wall of the lower end of the inner container 2 and is communicated with the vacuum layer 3. Therefore, the structure of the cup bottom shell 6 is omitted, and the process is simplified.

Example four

As shown in fig. 4, the present embodiment is substantially the same as the third embodiment, except that in the present embodiment, the lower end surface of the outer shell 1 is flush with the lower end surface of the inner container 2, the lower end of the outer shell 1 has a necking portion 11 formed by bending inward, the lower end of the inner container 2 has a flared flange 25 formed by bending outward and downward, the outer circumferential surface of the flared flange 25 abuts against the inner wall of the necking portion 11, and the two are welded; the inner wall of the lower end of the inner container 2 is provided with an annular abutting bulge 26 formed by concave, the peripheral edge of the inner container bottom 4 is provided with a folded edge 41 bent downwards, the peripheral surface of the folded edge 41 abuts against the side surface of the abutting bulge 26, and the two are welded. Further, hem 41 highly be higher than to support by protruding 26 highly, the lower extreme terminal surface of hem 41 is outstanding in the downside that supports by protruding 26 down, and the outer peripheral face of hem 41 is located to support to have the space between the inner wall that supports below protruding 26 with inner bag 2, inlays in this space to establish and welds reinforcing piece 7 to guarantee the firm reliability that inner bag end 4 is connected with inner bag 2.

The vacuumizing structure is a third air exhaust through hole 12 which is arranged on the side wall of the lower end of the shell 1 and is positioned at the joint of the shell 1 body and the necking part 11.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A titanium cup with a heating function, which comprises a shell (1) and an inner container (2) both made of titanium metal or titanium alloy material, the inner container (2) is inserted in the shell (1), the upper end of the shell (1) is fixedly connected with the upper end of the inner container (2) in a sealing way, a vacuum layer (3) is arranged between the outer shell (1) and the inner container (2), it is characterized in that the lower end of the inner container (2) is provided with an opening (21), the inner container bottom (4) is welded at the position of the opening (21) or close to the opening (21) in the inner container (2), the inner container bottom (4) is made of titanium metal or titanium alloy material, the bottom of the inner container bottom (4) is fixedly provided with a heating disc (5), the lower end of the shell (1) is fixedly connected with the lower end of the inner container (2) in a sealing mode, and a vacuumizing structure is arranged at the lower end of the shell (1) and/or the lower end of the inner container (2).

2. The titanium cup with the heating function according to claim 1, wherein the height of the outer shell (1) is larger than the height of the inner container (2) and the lower end of the outer shell (1) extends to the lower part of the inner container (2); the vacuum cup is characterized in that a cylindrical cup bottom shell (6) is arranged at the lower end of the outer shell (1) and the lower end of the inner container (2), and the vacuumizing structure is arranged on the cup bottom shell (6).

3. The titanium cup with the heating function as claimed in claim 2, wherein the cup bottom shell (6) is made of titanium metal or titanium alloy material, and the vacuum pumping structure comprises a first air pumping through hole (61) which is formed on the cup bottom shell (6) and communicated with the vacuum layer (3).

4. The titanium cup with the heating function according to claim 2 or 3, wherein the lower end of the inner container (2) is in a straight cylinder shape, the lower end of the outer shell (1) is provided with a necking part (11) which is bent inwards, the lower end of the cup bottom shell (6) is provided with a flaring part (62), the outer peripheral surface of the flaring part (62) is attached to the inner wall of the necking part (11), and the flaring part and the necking part are welded; the upper end of the cup bottom shell (6) is provided with a bending part (63) which is formed by bending inwards and downwards, the side surface of the bending part (63) is attached to the outer peripheral surface of the lower end of the inner container (2) in an abutting mode, and the two are welded.

5. The titanium cup with the heating function as claimed in claim 4, wherein the outer peripheral edge of the inner container bottom (4) is provided with a downward bent folded edge (41), and the outer peripheral surface of the folded edge (41) is abutted against the inner wall of the lower end of the inner container (2) and welded with the inner wall.

6. The titanium cup with the heating function according to claim 2 or 3, wherein the lower end of the inner container (2) is provided with a step part (22) formed by bending towards the outside and downwards, and the step part (22) is provided with a downward abutting step surface (22 a); the outer peripheral edge of the liner bottom (4) is provided with a folded edge (41) which is bent downwards, the upper side face, close to the outer edge, of the liner bottom (4) abuts against the abutting step face (22a), the outer peripheral face of the folded edge (41) abuts against the inner side face of the step portion (22), and the folded edge and the inner side face are welded.

7. The titanium cup with the heating function according to claim 1, wherein the lower end surface of the outer shell (1) is flush with the lower end surface of the inner container (2), the lower end inner wall of the outer shell (1) is attached to the lower end outer peripheral surface of the inner container (2) and fixedly welded with the outer shell; the inner container (2) is provided with an annular abutting convex rib (23) formed by an inner concave on the inner wall of the lower end, the lower side abutting against the convex rib (23) is provided with a first inclined abutting face (23a), the outer peripheral edge of the inner container bottom (4) is bent downwards to form a second inclined abutting face (42), the first inclined abutting face (23a) and the second inclined abutting face (42) are abutted and welded.

8. The titanium cup with the heating function as claimed in claim 7, wherein said vacuum structure is a second air-extracting through hole (24) provided on the sidewall of the lower end of said inner container (2) and connected to said vacuum layer (3).

9. The titanium cup with the heating function according to claim 1, wherein the lower end surface of the outer shell (1) is flush with the lower end surface of the inner container (2), the lower end of the outer shell (1) is provided with a necking part (11) formed by bending inwards, the lower end of the inner container (2) is provided with a flaring flange (25) formed by bending outwards and downwards, the outer peripheral surface of the flaring flange (25) is abutted against the inner wall of the necking part (11) and the flaring flange and the inner container are welded; the inner container is characterized in that an annular abutting bulge (26) formed by concave inward is arranged on the inner wall of the lower end of the inner container (2), a folded edge (41) bent downwards is arranged on the peripheral edge of the inner container bottom (4), the peripheral surface of the folded edge (41) abuts against the side surface of the abutting bulge (26), and the folded edge and the side surface are welded.

10. The titanium cup with the heating function according to claim 9, wherein the vacuum-pumping structure is a third air-pumping through hole (12) formed on the side wall of the lower end of the casing (1) at the connection position of the casing (1) body and the necking part (11).

11. The titanium cup with the heating function according to claim 9 or 10, wherein the height of the folded edge (41) is higher than that of the abutting protrusion (26), the lower end face of the folded edge (41) protrudes downward from the lower side face of the abutting protrusion (26), a gap is formed between the outer peripheral face of the folded edge (41) and the inner wall of the inner container (2) below the abutting protrusion (26), and a reinforcing member (7) is embedded in the gap and welded in the gap.

12. The titanium cup with the heating function according to claim 1, 2, 3, 7, 8, 9 or 10, wherein the upper end of the inner container (2) is provided with a flange (27) which is folded outwards, the outer peripheral surface of the flange (27) is abutted against the inner wall of the upper end of the shell (1), and the flange and the shell are welded.

13. The titanium cup with the heating function according to claim 1, 2, 3, 7, 8, 9 or 10, wherein the heating plate (5) is made of an aluminum heat pipe and welded at the bottom of the liner bottom (4); or the heating plate (5) is a metal ceramic heating coating arranged at the bottom of the inner container bottom (4).