Welding structure of electric heating cup

Abstract

The utility model belongs to the technical field of cups, in particular to a welding structure of an electric heating cup, which comprises a steel inner container and a steel outer container, the upper end and the lower end of the steel inner container are connected with the upper end and the lower end of the steel outer container through welding, a heating disc seat is welded inside the steel inner container, a flange is formed on the heating disc seat along the circumference, and the flange is upwards welded on the inner wall of the steel inner container. The utility model aims to provide the welding structure of the electric heating cup, which is simple to process, high in vacuum rate in the cup body and low in production cost.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cup technical field, especially point to a kind of welding structure of electric heating cup. BACKGROUND

[0002] At present, the internal structure of most stainless steel heating cup adopts 4 welding processes, the process is complex, and the vacuum rate of the cup body cannot be guaranteed during welding, and the flange of the heating disc seat is downward, which needs to be welded from the inside to the outside, the welding position is relatively rough, and blackening may occur. INVENTION CONTENTS

[0003] The utility model discloses a kind of welding structure of electric heating cup, which is simple to process, high in vacuum rate in cup body, and low in production cost.

[0004] The utility model discloses a kind of welding structure of electric heating cup, which is simple to process, high in vacuum rate in cup body, and low in production cost.

[0005] Preferably, the inner wall of the steel inner liner is formed with a first step portion, and the upper end of the flange abuts against the first step portion.

[0006] Preferably, the heating disc seat is provided with a limiting groove for facilitating installation of the heating disc.

[0007] Preferably, the lower end of the steel outer liner is formed with a second step portion, the lower end of the steel inner liner is formed with a third step portion, and the outer wall of the lower end of the third step portion is welded to the inner wall of the lower end of the second step portion.

[0008] Preferably, the upper end of the steel inner liner is formed with a fourth step portion, and the outer wall of the upper end of the fourth step portion is welded to the inner wall of the steel outer liner.

[0009] Compared with the prior art, the welding structure of the electric heating cup has the following advantages: the vacuum part is double-layered and connected at both ends, only two welding is required at the upper end and the lower end, two welding is reduced compared with the original four welding, the vacuum rate is greatly improved, the scrap rate is reduced, and one sleeve ring is also reduced, which greatly reduces the cost.

[0010] The flange of the heating disc seat is upwardly sleeved into the first step portion at the bottom of the steel inner liner, and the first step portion is welded from the outside to the inside, which can ensure that the welding position is smooth and no blackening occurs, the welding position is gapless to prevent residue from being left, and the scrap rate of the inner liner is greatly reduced, thereby reducing the cost. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 is the structural diagram of the utility model.

[0012] Fig. 2 is a sectional view of the utility model. DETAILED DESCRIPTION

[0013] The utility model will be further described below with specific examples.

[0014] As Figs. 1-2 The utility model discloses a welded structure of electric heating cup, which comprises a steel inner container 1 and a steel outer container 2, the upper and lower ends of the steel inner container 1 and the steel outer container 2 are connected through welding, a heating disc seat 3 is welded in the steel inner container 1, the heating disc seat 3 is formed with a flange 4 along the circumference, and the flange 4 is welded on the inner wall of the steel inner container 1 upwards.

[0015] The welded structure of the electric heating cup of the technical scheme has two-layer double-end through in the vacuum part, only two welding at the upper end and the lower end, two welding is reduced compared with the original four welding, the vacuum rate is greatly improved, the scrap rate is reduced, and one sleeve ring is reduced, so that the cost is greatly reduced. The flange 4 of the heating disc seat 3 is sleeved into the stepped part one 5 at the bottom of the steel inner container upwards, and is welded from outside to inside at the stepped part one 5, which can guarantee that the welding part is flat and no blackening phenomenon occurs, can guarantee that no gap is left at the welding position to cause residue, and greatly reduces the welding scrap rate of the inner container and the cost.

[0016] Preferably, the inner wall of the steel inner container 1 is formed with a stepped part one 5, and the upper end of the flange 4 abuts against the stepped part one 5.

[0017] Preferably, the heating disc seat 3 is provided with a limiting groove 6 for conveniently installing the heating disc. The limiting groove can conveniently install the heating disc and increase the stability of installation.

[0018] Preferably, the lower end of the steel outer container 2 is formed with a stepped part two 7, the lower end of the steel inner container 1 is formed with a stepped part three 8, and the outer wall of the lower end of the stepped part three 8 is welded with the inner wall of the lower end of the stepped part two 7. The welding of the outer wall of the lower end of the stepped part three 8 and the inner wall of the lower end of the stepped part two 7 can increase the vacuum rate and provide production efficiency.

[0019] Preferably, the upper end of the steel inner container 1 is formed with a stepped part four 9, and the upper end outer wall of the stepped part four 9 is welded with the inner wall of the steel outer container 2. The welding of the upper end of the stepped part four 9 and the steel inner container 1 can increase the vacuum rate and provide production efficiency.

[0020] The above examples are only preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: all equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A welded structure of an electrically heated cup, characterized by, The utility model relates to a steel inner shell (1) and steel outer shell (2) are connected through welding in the up and down both ends, the steel inner shell (1) inside welding has heat generating disc seat (3), the heat generating disc seat (3) is shaped with flanging (4) along the circumference, and the flanging (4) is welded in the steel inner shell (1) inner wall towards up.

2. The welded structure of an electrically heated cup according to claim 1, wherein The steel inner shell (1) inner wall is shaped with step part one (5), and the flanging (4) upper end is in abutment with step part one (5).

3. The welded structure of an electrically heated cup according to claim 1, wherein The heat generating disc seat (3) is provided with limiting slot (6) for installing heat generating disc on.

4. The welded structure of an electrically heated cup according to claim 1, wherein The steel outer shell (2) lower end is shaped with step part two (7), the steel inner shell (1) lower end is shaped with step part three (8), and the step part three (8) lower end outer wall is welded with the step part two (7) lower end inner wall.

5. The welded construction of an electrically heated cup according to claim 1, characterized in that, The steel inner shell (1) upper end is shaped with step part four (9), and the step part four (9) upper end outer wall is welded with the steel outer shell (2) inner wall.

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