CN109381055B - Portable thermos bottle and manufacturing method thereof - Google Patents
Portable thermos bottle and manufacturing method thereof Download PDFInfo
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- CN109381055B CN109381055B CN201710687093.3A CN201710687093A CN109381055B CN 109381055 B CN109381055 B CN 109381055B CN 201710687093 A CN201710687093 A CN 201710687093A CN 109381055 B CN109381055 B CN 109381055B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
- A47J41/02—Vacuum-jacket vessels, e.g. vacuum bottles
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
- A47J41/0083—Accessories
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- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Thermally Insulated Containers For Foods (AREA)
Abstract
The invention discloses a portable thermos bottle, which comprises a bottle body and a base. The bottle body comprises a shell and a vacuum bottom, and the bottom of the shell is sequentially bent to form a middle section and a welding section. The vacuum bottom comprises a cover body with a matched welding section at the top and a matched buckling part at the bottom, the matched welding section is sleeved in the welding section, the lower end of the matched welding section is flush with the welding section, the upper end of the matched welding section upwards exceeds the welding section, and the joint part of the matched welding section and the welding section is welded; the base comprises a bottom cover and a sleeving and buckling part, the bottom cover is provided with a bottom wall and an arc-shaped side wall, and the sleeving and buckling part is arranged in the middle of the bottom wall of the bottom cover; the sleeving and buckling parts are buckled with the matched buckling parts in a sleeving and buckling way, so that the arc-shaped side wall is mutually abutted with the side wall of the shell, and the welding section extends downwards to the arc-shaped side wall and is positioned in the space surrounded by the arc-shaped side wall. On one hand, the welding between the vacuum bottom and the shell is firmer, and on the other hand, the welding part between the vacuum bottom and the shell can not block the arc-shaped side wall of the base, so that streamline modeling is richer. In addition, the invention also discloses a manufacturing method of the portable thermos bottle.
Description
Technical Field
The invention relates to a container for holding drinking water, in particular to a portable thermos bottle and a manufacturing method thereof.
Background
With the continuous development of economy and the continuous progress of society, various substance consumer products are provided for the life of people so as to meet the personalized life pursuit of people, and a thermos bottle is one of the various substance consumer products.
As is known, a thermos bottle comprises a cap, a body fitted with the cap, and a base assembled on the bottom of the body. The bottle body comprises an inner container, a shell and a vacuum bottom, wherein the top end parts of the inner container and the shell are sealed and welded together, a welding ring which is biased inwards relative to the shell is arranged at the bottom of the shell, the vacuum bottom is provided with a welding ring matched with the welding ring, so when the welding ring and the welding ring are welded together, the vacuum bottom covers the bottom of the inner container, a closed space is enclosed among the inner container, the shell and the vacuum bottom, then the closed space is vacuumized through a vacuum hole of the vacuum bottom, the vacuum hole is sealed again after vacuumization, so that the vacuumized closed space forms a vacuum cavity, finally, the inner wall of the base is sleeved on the welding ring and is in interference fit with the welding ring to assemble the base at the bottom of the shell, and the base assembled on the shell also covers the vacuum bottom and the welding part of the vacuum bottom and the shell, so that the base and the bottle body form a bottle body with aesthetic feeling.
Because the welding ring of the shell and the matched welding ring of the vacuum bottom are welded together, the side wall of the welding ring of the shell and the side wall of the matched welding ring are vertical walls respectively so as to ensure the welding reliability of the shell and the vacuum bottom. Because the vacuum bottom, the base and the shell are mutually connected, the downward extending length of the welding part of the existing vacuum bottom and the shell relative to the shell is determined by the welding ring of the shell and the matched welding ring of the vacuum bottom, and the downward extending length of the vacuum bottom and the matched welding ring of the vacuum bottom relative to the shell is longer, the base needs to be designed into a barrel shape to be normally assembled with the shell, but the appearance of a bottle body formed by the barrel-shaped base and the shell is very monotonous; if the side wall of the base is designed to be arc-shaped, the welding part of the vacuum bottom and the shell at the moment can block the arc-shaped side wall, so that the base cannot be assembled with the shell normally.
Accordingly, there is a strong need for a portable vacuum flask and method of manufacturing the same that overcomes the above-described drawbacks.
Disclosure of Invention
An object of the present invention is to provide a portable vacuum flask which ensures reliable welding between a vacuum bottom and a housing and in which the welding of the vacuum bottom and the housing does not cause an obstacle to the normal installation of a base having an arc-shaped side wall.
Another object of the present invention is to provide a method of manufacturing a portable vacuum flask that ensures reliable welding between a vacuum bottom and a housing and that the welding of the vacuum bottom and the housing does not cause an obstacle to the normal installation of a base having an arc-shaped side wall.
In order to achieve the above object, the present invention provides a portable thermos bottle, comprising a bottle body and a base assembled at the bottom of the bottle body. The bottle body comprises a shell and a vacuum bottom, wherein the bottom of the shell is inwards bent to form a middle section and the middle section is downwards bent to form a welding section; the vacuum bottom comprises a cover body surrounded by the welding section from the periphery, the top of the cover body is downwards bent to form a welding section, the welding section is tightly sleeved in a space surrounded by the welding section in a fitting manner, the lower end of the welding section is flush with the welding section, the upper end of the welding section upwards exceeds the welding section, the fitting positions of the welding section and the welding section are welded together, and a matched buckling part is arranged at the middle position of the bottom of the cover body; the base comprises a bottom cover and a sleeving and buckling part, the bottom cover is provided with a bottom wall and an arc-shaped side wall which extends upwards from the bottom wall and protrudes outwards, the sleeving and buckling part is arranged in the middle of the bottom wall of the bottom cover, the sleeving and buckling part and the matched buckling part are mutually sleeved and buckled to enable the arc-shaped side wall to be mutually butted with the side wall of the shell, and the welding section extends downwards to the arc-shaped side wall and is located in a space surrounded by the arc-shaped side wall.
Preferably, the side wall of the housing has a vertical side wall and an arc-shaped and outwardly convex lower extension side wall extending downwards from the vertical side wall, the lower extension side wall is bent inwards to form the middle section, and the arc-shaped side wall is in butt joint with the lower extension side wall.
Preferably, the arc side wall is higher than the sleeve joint buckling part.
Preferably, one of the sleeving and buckling part and the matched buckling part is of an annular structure, the other of the sleeving and buckling part and the matched buckling part is of a cylindrical structure, and the annular structure and the cylindrical structure are mutually sleeved and in interference fit.
Preferably, the bottom wall of the bottom cover is provided with an assembly hole in a penetrating manner along the up-down direction, and the bottom wall of the bottom cover extends upwards to form the annular structure surrounding the assembly hole from the periphery.
Preferably, the bottom wall of the bottom cover is provided with an assembly hole in a penetrating manner along the up-down direction, the bottom wall of the bottom cover extends upwards to form a welding surrounding dam surrounding the assembly hole from the periphery, the sleeve joint buckle part is respectively sleeved in the assembly hole and the welding surrounding dam, and the sleeve joint buckle part is also welded with the welding surrounding dam.
Preferably, the joint of the welding section and the matching section is a vertical side wall.
Preferably, the cover body is provided with an outwards convex arc-shaped side wall, and the top tail end of the arc-shaped side wall is downwards bent out of the welding section.
Preferably, the arc-shaped side wall downwards exceeds the welding section, and the joint of the welding section and the arc-shaped side wall is of an arc-shaped transition structure.
Preferably, the side wall of the sleeving and buckling part and the side wall of the matching buckling part are vertical walls respectively, and the side wall of the sleeving and buckling part and the side wall of the matching buckling part are mutually sleeved and in interference fit.
In order to achieve the above object, the manufacturing method of the portable thermos bottle of the present invention comprises the steps of:
(1) Providing a bottle body, wherein the bottom of a shell in the bottle body is inwards bent to form a middle section and a welding section is downwards bent from the middle section;
(2) Providing a vacuum bottom, wherein the top of the vacuum bottom is downwards bent to form a matched welding section, a matched buckling part is formed at the middle position of the bottom of the vacuum bottom, and the height of the matched welding section is larger than that of the welding section;
(3) Sleeving the welding section in a space surrounded by the welding section in a tightly attached mode, enabling the lower end of the welding section to be level to the welding section, and then welding the attached position of the welding section and the welding section together;
(4) The base is provided with a bottom wall, an arc side wall which extends upwards from the bottom wall and protrudes outwards, and a sleeving and buckling part formed in the middle of the bottom wall, so that the sleeving and buckling part and the matched buckling part are mutually sleeved and buckled, and the arc side wall is mutually butted with the side wall of the shell.
Compared with the prior art, the cover body is surrounded by the welding section from the periphery, the top of the cover body is bent downwards to form the welding section, the welding section is tightly sleeved in the space surrounded by the welding section, the lower end of the welding section is flush with the welding section, and the upper end of the welding section upwards exceeds the welding section, so that the situation that the welding section cannot have enough welding positions due to metal ductility when the top of the cover body is bent downwards to form the welding section is effectively prevented, and the welding between the welding section and the welding section is more reliable; the lower end of the welding section is flush with the welding section, and the upper end of the welding section upwards exceeds the welding section, so that the size of the welding part of the vacuum bottom and the shell, which downwards extends out of the shell, is determined by the welding section, is not influenced by the welding section, and can not block the arc-shaped side wall of the bottom cover in the base; the bottom cover is sleeved with the vacuum bottom, and the bottom cover is sleeved with the vacuum bottom, so that the arc-shaped side wall of the bottom cover in the base is abutted with the side wall of the shell while the fixing reliability of the base and the vacuum bottom is ensured, and the streamline modeling of the portable thermos bottle is richer and can meet personalized requirements.
Drawings
Fig. 1 is a schematic perspective view of a portable thermos according to the present invention.
Fig. 2 is a schematic view showing a state in which the base and the body of the portable thermos bottle shown in fig. 1 are separated.
Fig. 3 is a schematic view showing another angle of the base and the body of the portable thermos shown in fig. 1.
Fig. 4 is a schematic view showing the internal structure of the portable thermos bottle shown in fig. 1, cut through a plane passing through the center line thereof.
Fig. 5 is an enlarged view of a portion a in fig. 4.
Fig. 6 is a schematic perspective view of the portable thermos bottle shown in fig. 1 after the base is hidden.
Fig. 7 is a schematic view showing an exploded perspective structure of the portable thermos bottle shown in fig. 1 after the base is hidden and the vacuum bottom is separated from the housing.
Fig. 8 is a schematic perspective view of a vacuum bottom in the portable thermos of the present invention.
Fig. 9 is a schematic view of the internal structure of the vacuum bottom shown in fig. 8, cut through a plane passing through the center line thereof.
Fig. 10 is a schematic perspective view of a base in the portable thermos of the present invention.
Fig. 11 is a schematic view of the internal structure of the chassis shown in fig. 10, cut through a plane passing through the center line thereof.
Fig. 12 is a flowchart of a method of manufacturing a bottle bottom of the portable thermos of the present invention.
Detailed Description
In order to describe the technical content, the constructional features and the effects achieved by the present invention in detail, the following description is made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 4, the portable thermos bottle 100 of the present invention includes a body 100a and a base 100b assembled at the bottom of the body 100 a. The bottle body 100a includes a housing 10 and a vacuum bottom 30; specifically, the bottle body 100a further includes an inner container 20, the inner container 20 is located in the outer shell 10, and the top of the inner container 20 and the top of the outer shell are welded together in a sealing manner, so that the bottom of the inner container 20 is in a suspended state with respect to the outer shell 10, and the state is shown in fig. 4 or fig. 7, but not limited thereto. The bottom of the shell 10 is inwards bent to form a middle section 11, and the middle section 11 is downwards bent to form a welding section 12; for example, as shown in fig. 7, the welding section 12 is cylindrical, and the middle section 11 is a flat ring structure, so that the casing 10 is integrally formed by a stamping and stretching process, so as to simplify the manufacturing process of the casing 10, but not limited thereto.
Referring to fig. 6 to 9, the vacuum bottom 30 includes a cover 31 surrounded by the welding section 12 from the periphery, the top of the cover 31 is bent downwards to form a welding section 32, the welding section 32 is tightly fit in a space 13 surrounded by the welding section 12, so that the welding section 32 and the welding section 12 are tightly fit with each other, and the lower end of the welding section 32 is level with the welding section 12, so as to facilitate welding operation of the welding section and the welding section; the upper end of the welding section 32 upwards exceeds the welding section 12, and the joint of the welding section 32 and the welding section 12 is welded together; preferably, as shown in fig. 5, the joint of the welding section 32 and the welding section 12 is a vertical side wall, so that on one hand, the sleeve joint between the welding section 32 and the welding section 12 is more stable to facilitate the welding operation, and on the other hand, the welding between the welding section 32 and the welding section 12 is more stable; the middle position of the bottom of the cover 31 is provided with the matched buckling part 311, the state is shown in fig. 4 and 5, so that the matched welding section 32 can utilize the space between the vacuum bottom 30 and the bottom of the liner 20 to prolong the size of the matched welding section 32, the defect that the matched welding section 32 cannot have enough welding positions due to metal ductility when the top of the cover 31 is bent downwards to form the matched welding section 32 is effectively overcome, the welding reliability of the welding section 12 and the matched welding section 32 is increased due to the sufficient welding positions under the condition that the original size of the welding section 12 is maintained, and after the vacuum bottom 30 is welded with the shell 10, a closed space is enclosed among the vacuum bottom 30, the liner 20 and the shell 10. Specifically, as shown in fig. 5, the height of the welding section 32 is at least 0.5mm higher than the height of the welding section 12, but not limited thereto. More specifically, the following is:
The cover 31 has an outwards convex arc-shaped side wall 312, and the top end of the arc-shaped side wall 312 is downwards bent to form a welding section 32, so that the vacuum bottom 30 better matches the shapes of the base 100b and the liner 20; specifically, as shown in fig. 5, the arc-shaped side wall 312 extends downward beyond the welding section 12, and the junction between the welding section 32 and the arc-shaped side wall 312 is an arc-shaped transition structure 313, so that the arc-shaped side wall 312 is more reliably bent out of the welding section 32; for example, as shown in fig. 9, the welding section 32 has a cylindrical shape, so that the vacuum bottom 30 is formed at one time by a stamping and stretching process, which simplifies the manufacturing process, but is not limited thereto.
Meanwhile, the mating fastening part 311 has a cylindrical structure, specifically, the cylindrical structure has a barrel-shaped structure with an upward opening 311a, and the state is shown in fig. 8 and 9, so that the vacuum bottom 30 is formed at one time through a stamping and stretching process; for example, the arc-shaped sidewall 312 extends downward to the cylindrical structure, so that the vacuum bottom 30 is bowl-shaped, and better matches the base 100b and the liner 20, but not limited thereto.
As shown in fig. 1 to 5 and fig. 10 to 11, the base 100b includes a bottom cover 40 and a socket button 50, wherein the bottom cover 40 has a bottom wall 42 and an arc-shaped side wall 41 extending upward from the bottom wall 42 and protruding outward; the sleeving and buckling part 50 is arranged in the middle of the bottom wall 42 of the bottom cover 40, the sleeving and buckling part 50 and the matched buckling part 311 are mutually sleeved and buckled to enable the arc-shaped side wall 41 and the side wall 11a of the shell 10 to be mutually butted, so that the butt joint between the side wall 11a of the shell 10 and the arc-shaped side wall 41 of the bottom cover 40 is smoother, the state is shown in fig. 1, and the personalized requirements are better met; the welding section 12 extends downward to the arc-shaped side wall 41 and is located in the space surrounded by the arc-shaped side wall 41, and the arc-shaped side wall 41 is not blocked, as shown in fig. 4 and 5. Specifically, as shown in fig. 11, in the present embodiment, the arc-shaped side wall 41 extends from the top end face 45 of the bottom cover 40 to the bottom end face 46 of the bottom cover 40, so that the butt joint between the side wall 11a of the housing 10 and the arc-shaped side wall 41 is smoothly arc-shaped excessive; the side wall 11a of the housing 10 has a vertical side wall 111 and an arc-shaped and outwardly protruding lower extending side wall 112 extending downward from the vertical side wall 111, the lower extending side wall 112 is inwardly bent to form the middle section 11, the arc-shaped side wall 41 and the lower extending side wall 112 are butted with each other, so that the butt joint between the side wall 11a of the housing 10 and the arc-shaped side wall 41 is smoother and more arc-shaped, and the appearance of the portable thermos bottle 100 of the present invention is more attractive, but not limited thereto. More specifically, the following is:
As shown in fig. 4 and 5, and fig. 10 and 11, the arc-shaped side wall 41 is higher than the socket fastening part 50, so that the matching space between the vacuum bottom 30 and the liner 20 is more reasonable and compact. Specifically, in the present embodiment, the socket fastening portion 50 has an annular structure, and is matched with the above-mentioned mating fastening portion 311 by a cylindrical structure, so that the annular structure and the cylindrical structure are mutually sleeved and in interference fit; of course, in other embodiments, the socket fastening portion 50 has a cylindrical structure and the mating fastening portion 311 has an annular structure, so that the socket fastening portion 50 and the mating fastening portion 311 can be fastened together in a socket manner. For example, the side wall 51 of the socket fastening portion 50 and the side wall of the mating fastening portion 311 are vertical walls, and the side wall 51 of the socket fastening portion 50 and the side wall of the mating fastening portion 311 are mutually sleeved and in interference fit, so that the socket fastening between the socket fastening portion 50 and the mating fastening portion 311 is more stable, and accidental detachment between the base 100b and the vacuum bottom 30 is effectively prevented, but not limited thereto. Preferably, the bottom wall 42 of the bottom cover 40 is provided with an assembly hole 43 penetrating in the up-down direction, and the assembly hole 43 is preferably a circular hole to facilitate the manufacture of the bottom cover 40, but not limited thereto; the bottom wall 42 of the bottom cover 40 extends upwards to form a welding surrounding dam 44 surrounding the assembly hole 43 from the periphery, the sleeving and buckling part 50 is sleeved at the assembly hole 43 and the welding surrounding dam 44 respectively, and the sleeving and buckling part 50 is welded with the welding surrounding dam 44, so that the bottom cover 40 and the sleeving and buckling part 50 are manufactured independently respectively, and then the bottom cover 40 and the sleeving and buckling part 50 are assembled and welded together, so that the manufacturing of the base 100b is easy and the process is simple; in addition, the lower end of the socket fastening portion 50 is flush with the bottom wall 42 of the bottom cover 40, so that the portable thermos bottle 100 of the present invention is conveniently placed on the platform, but not limited thereto. It can be understood that, in other embodiments, the bottom wall 42 of the bottom cover 40 is provided with the assembly hole 43 extending therethrough along the up-down direction, the annular structure is formed by extending upward from the bottom wall 42 of the bottom cover 40, and the annular structure also surrounds the assembly hole 43 from the periphery, and the annular structure forms the socket fastening portion 50, so that the manufacturing process of the base 100b is simplified.
Referring to fig. 12, and referring to fig. 1 to 11, the method for manufacturing a portable thermos according to the present invention includes the following steps:
S001, providing a bottle body 100a, wherein the bottom of the shell 10 in the bottle body 100a is bent inwards to form a middle section 11, and the middle section 11 is bent downwards to form a welding section 12.
S002, providing a vacuum bottom 30, bending the top of the vacuum bottom 30 downwards to form a matched welding section 32, forming a matched buckling part 311 at the middle position of the bottom of the vacuum bottom 30, wherein the height of the matched welding section 311 is larger than that of the welding section 12.
S003, sleeving the welding section 32 in a space 13 surrounded by the welding section 12 in a tightly fitting manner, enabling the lower end of the welding section 32 to be flush with the welding section 12, and then welding the joint of the welding section 32 and the welding section 12 together; specifically, the welding section 32 is tightly fitted in the space 13 surrounded by the welding section 12 along the vertical direction parallel to the portable thermos bottle 100, so as to be convenient for installation between the vacuum bottom 30 and the outer shell 10.
S004, providing a base 100b, wherein the base 100b is provided with a bottom wall 42, an arc-shaped side wall 41 which extends upwards from the bottom wall 42 and protrudes outwards, and a socket buckling part 50 formed in the middle of the bottom wall 42, so that the socket buckling part 50 and the matched buckling part 311 are mutually socket buckled, the arc-shaped side wall 41 is mutually butted with the side wall 11a of the shell 10, and the butt joint between the arc-shaped side wall 41 and the side wall 11a of the shell 10 is smoother and more excessive; specifically, the socket fastening portion 50 is fastened with the mating fastening portion 311 along the vertical direction parallel to the portable thermos bottle 100, so as to facilitate assembly therebetween, but not limited thereto.
Compared with the prior art, the cover body 31 is surrounded by the welding section 12 from the periphery, the top of the cover body is bent downwards to form the welding section 32, the welding section 32 is tightly sleeved in the space 13 surrounded by the welding section 12, the lower end of the welding section 32 is flush with the welding section 12, the upper end of the welding section 32 upwards exceeds the welding section 12, and the situation that the welding section 31 cannot have enough welding positions due to metal ductility when the top of the cover body 31 is bent downwards to form the welding section 32 is effectively prevented, so that the welding between the welding section 32 and the welding section 12 is more reliable; just because the lower end of the welding section 32 is flush with the welding section 12 and the upper end of the welding section is upwards beyond the welding section 12, the size of the welding part of the vacuum bottom 30 and the shell 10, which downwards extends out of the shell 10, is determined by the welding section 12, is not influenced by the welding section 32, and does not block the arc-shaped side wall 41 of the bottom cover 40 in the base 100 b; the socket fastening part 50 on the bottom wall 42 of the bottom cover 40 in the base 100b and the matching fastening part 311 of the vacuum bottom 30 are mutually socket fastened, so that the arc-shaped side wall 41 of the bottom cover 40 in the base 100b is in butt joint with the side wall 11a of the shell 10 while the fixing reliability of the base 100b and the vacuum bottom 30 is ensured, and therefore, the streamline modeling of the portable thermos bottle 100 is richer and the personalized needs can be met.
The foregoing disclosure is merely illustrative of the principles of the present invention, and thus, it is intended that the scope of the invention be limited thereto and not by this disclosure, but by the claims appended hereto.
Claims (8)
1. The utility model provides a portable thermos, includes the body and assemble in the base of the bottom of body, the body contains shell, inner bag and vacuum bottom, the bottom of shell inwards buckles out the interlude and by the interlude buckle out the welded segment downwards, the inner bag is located in the shell and both tops are sealed welding together each other, its characterized in that, the vacuum bottom contains by the welded segment from the lid that surrounds all around, the top of lid buckles out the joining in marriage the welded segment downwards, join in marriage the welded segment and be closely laminating cover in the space that the welded segment encloses, just join in marriage the welded segment's lower extreme with the welded segment parallel and level, join in marriage the upper end of welded segment upwards surpass the welded segment, join in marriage the welded segment with the junction of welded segment together, the intermediate position department of the bottom of lid has the supporting knot portion; the base comprises a bottom cover and a sleeving and buckling part, the bottom cover is provided with a bottom wall and an arc-shaped side wall which extends upwards from the bottom wall and protrudes outwards, the sleeving and buckling part is arranged in the middle of the bottom wall of the bottom cover, the sleeving and buckling part and the matched buckling part are mutually sleeved and buckled to enable the arc-shaped side wall to be mutually butted with the side wall of the shell, and the welding section extends downwards to the arc-shaped side wall and is positioned in a space surrounded by the arc-shaped side wall;
the bottom wall of the bottom cover is provided with an assembly hole in a penetrating manner along the up-down direction, the bottom wall of the bottom cover upwards extends to form a welding surrounding dam surrounding the assembly hole, the sleeve joint buckle part is respectively sleeved in the assembly hole and the welding surrounding dam, and the sleeve joint buckle part is also welded with the welding surrounding dam.
2. The portable vacuum flask according to claim 1, wherein the side wall of the housing has a vertical side wall and an arcuate and outwardly convex downwardly extending side wall extending downwardly from the vertical side wall, the downwardly extending side wall being inwardly bent out of the intermediate section, the arcuate side wall and the downwardly extending side wall abutting each other.
3. The portable vacuum flask according to claim 1, wherein one of the socket button portion and the mating button portion is of an annular structure, the other of the socket button portion and the mating button portion is of a cylindrical structure, and the annular structure and the cylindrical structure are mutually socket-jointed and interference fit.
4. The portable vacuum flask according to claim 1, wherein the joint of the welding section and the mating section is a vertical sidewall.
5. The portable vacuum flask according to claim 1, wherein the cover has an outwardly convex arcuate sidewall, a top end of the arcuate sidewall being bent downwardly out of the mating weld segment.
6. The portable vacuum flask according to claim 5, wherein said arcuate sidewall extends downwardly beyond said welding segment, and wherein the junction of said weld segment and said arcuate sidewall is an arcuate transition.
7. A portable vacuum flask according to claim 3, wherein the side wall of the socket fastening portion and the side wall of the mating fastening portion are each vertical walls, and the side wall of the socket fastening portion and the side wall of the mating fastening portion are mutually socket-jointed and interference-fit.
8. A method for manufacturing a portable thermos bottle, comprising the steps of:
(1) Providing a bottle body, wherein the bottom of a shell in the bottle body is inwards bent to form a middle section and a welding section is downwards bent from the middle section;
(2) Providing a vacuum bottom, wherein the top of the vacuum bottom is downwards bent to form a matched welding section, a matched buckling part is formed at the middle position of the bottom of the vacuum bottom, and the height of the matched welding section is larger than that of the welding section;
(3) Sleeving the welding section in a space surrounded by the welding section in a tightly attached mode, enabling the lower end of the welding section to be level to the welding section, and then welding the attached position of the welding section and the welding section together;
(4) Providing a base, wherein the base is provided with a bottom wall, an arc-shaped side wall which extends upwards from the bottom wall and protrudes outwards, and a sleeving and buckling part formed in the middle of the bottom wall, so that the sleeving and buckling part and the matched buckling part are mutually sleeved and buckled, and the arc-shaped side wall and the side wall of the shell are mutually butted;
The bottom wall is provided with an assembly hole in a penetrating manner along the up-down direction, the bottom wall extends upwards to form a welding surrounding dam surrounding the assembly hole, the sleeve joint buckle part is respectively sleeved in the assembly hole and the welding surrounding dam, and the sleeve joint buckle part is also welded with the welding surrounding dam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710687093.3A CN109381055B (en) | 2017-08-11 | 2017-08-11 | Portable thermos bottle and manufacturing method thereof |
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| CN201710687093.3A CN109381055B (en) | 2017-08-11 | 2017-08-11 | Portable thermos bottle and manufacturing method thereof |
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| CN109381055B true CN109381055B (en) | 2024-05-14 |
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| CN109381055A (en) | 2019-02-26 |
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