Bending structure of electric ceramic cooker metal bottom shell

Abstract

The utility model relates to the technical field of electric ceramic cookers, in particular to a bending structure of a metal bottom shell of an electric ceramic cooker, which comprises a bottom surface, two long surfaces and two short surfaces, the two long surfaces are bent and connected to two long edges of the bottom surface, and the two short surfaces are bent to two short edges of the bottom surface. According to the utility model, the long surface and the short surface are further reinforced by means of secondary bending connection between the long surface and the short surface, and during bending, the bending arms and the extending parts are connected in a mutual penetrating manner, so that the bending arms and the extending parts are connected in a mutual penetrating manner, and the bending arms and the extending parts are connected in a mutual penetrating manner, so that the bending strength of the long surface and the short surface is improved. According to the electric ceramic cooker, the self-locking structure is achieved, so that the forming strength of the shell is effectively improved, the stability of the electric ceramic cooker during use is guaranteed, meanwhile, one-time forming can be achieved after bending, other parts do not need to be used for reinforcement, machining procedures are saved, and the requirement for assembly parts is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric ceramic stove technical field especially relates to a kind of bending structure of electric ceramic stove metal bottom shell. BACKGROUND

[0002] Electric ceramic stove is a kind of stove equipment using current heat effect to convert electric energy into heat energy, and has been widely used in modern kitchen. One of its core components is metal bottom shell, which not only bears the role of supporting the entire electric ceramic stove structure, but also affects the service life and safety of electric ceramic stove.

[0003] As shown in the description accompanying drawings Figure 1 In the existing electric ceramic stove metal bottom shell processing, the four edges of metal plate are usually bent to form the long side and short side of the bottom shell. This structure design can meet the basic support requirements in theory. However, in actual application, this bending structure has certain defects. Specifically, the long side and short side have no fixed connection structure between their two sides after bending. This leads to poor overall forming strength of the bottom shell, which is easy to deform or damage under external force, thereby affecting the stability and safety of electric ceramic stove.

[0004] In order to enhance the connection strength of the bottom shell, some electric ceramic stove manufacturers adopt further connection and fixation methods, such as welding or riveting. These methods improve the stability of the bottom shell to some extent, but also bring new problems. First, these reinforcement methods increase the demand for parts, thereby increasing production cost, and second, these reinforcement methods increase production process, affecting production efficiency. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problems in the prior art, such as the reinforcement method increasing the demand for parts and thereby increasing production cost, and proposes a kind of bending structure of electric ceramic stove metal bottom shell.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A kind of bending structure of electric ceramic stove metal bottom shell is designed, including bottom surface, two long sides bent and connected on the two long edges of the bottom surface and two short sides bent on the two short edges of the bottom surface:

[0008] At least one bending arm is arranged on the two sides of the short side, the two sides of the long side have an extension, and a through hole is formed on the end face of the extension, wherein the bending arm enters along the through hole and is bent to fit on the end face of the long side;

[0009] The extension is bent along the axis of the through hole and fits on the end face of the short side.

[0010] Further, the perforation is a rectangular hole opened along the height direction of the bottom shell, and the height of the rectangular hole is greater than the height of the bending arm.

[0011] Further, at least one stress relief hole is further opened on the end surface of the extension and the bending arm, and the stress relief hole of the extension is coincided with the axis of the perforation.

[0012] Further, the first avoiding port is arranged at the end of the long face and the bending part of the bottom face, the second avoiding port is arranged at the end of the short face and the bending part of the bottom face, and the first avoiding port and the second avoiding port are oppositely arranged and form an arc corner part at the bottom of the long face and the short face.

[0013] Further, the sheath is further included, the sheath is in L-shaped structure and is sleeved at the connecting corner of the long face and the short face.

[0014] Wherein, the two ends of the sheath are provided with the bending edges.

[0015] Further, two perforations are arranged on each of the extensions, and two bending arms are correspondingly arranged on one side of each of the short faces.

[0016] The bending structure of the metal bottom shell of the electric ceramic stove has the beneficial effects that: in the utility model, the long face and the short face are connected through secondary bending, so that the long face and the short face are further reinforced, the bending arms and the extensions are connected through the mutual penetrating mode, so that the self-locking structure is realized, the forming strength of the shell is effectively improved, the stability of the electric ceramic stove during use is ensured, and the shell can be formed once after bending, so that the reinforcing of other parts is not needed, the processing procedure is saved, and the demand for assembly parts is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the bottom shell structure of the prior art;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the extension and the bending arm after bending of the utility model;

[0020] Figure 4 It is a schematic diagram of the sheath structure of the utility model.

[0021] In the drawing: 1, bottom face; 11, first avoiding port; 12, second avoiding port; 13, arc corner part; 2, long face; 21, extension; 22, perforation; 23, stress relief hole; 3, short face; 31, bending arm; 4, sheath; 41, bending edge. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] With reference to Figures 2-4 For an embodiment of the utility model, it discloses a kind of electric ceramic stove metal bottom shell's bending structure, specifically the bottom shell in the embodiment includes bottom surface 1, two long faces 2 of bending connection in the bottom surface 1 two long sides and two short faces 3 of bending in the bottom surface 1 two short sides, of course the long face 2 and the short face 3 are perpendicular to the bottom surface 1 and are bent:

[0024] At least one bending arm 31 is arranged on the two sides of the short face 3, the two sides of the long face 2 have an extension 21, and a through hole 22 is formed in the end surface of the extension 21, wherein the bending arm 31 enters along the through hole 22, and is attached to the end surface of the long face 2 after bending.

[0025] The extension 21 is attached to the end surface of the short face 3 after bending along the axis of the through hole 22.

[0026] In some embodiments, the through hole 22 in the utility model is a rectangular hole formed in the height direction of the bottom shell, and the height of the rectangular hole is greater than the height of the bending arm 31. The design purpose of the height of the rectangular hole being greater than the height of the bending arm 31 is to maintain the free installation of the bending arm 31, and the large size design can reduce the bending stress of the extension 21.

[0027] Of course, at least one stress relief hole 23 is also formed in the end surface of the extension 21 and the bending arm 31 in the embodiment, and two stress relief holes 23 are provided in the embodiment, which are symmetrically arranged on the upper and lower sides of the extension 21. In the embodiment, the stress relief hole 23 is a rectangular hole, the stress relief hole 23 of the extension 21 coincides with the axis of the through hole 22, and the stress relief hole 23 is used to reduce the bending stress of the extension 21 in the embodiment. Similarly, the stress relief hole 23 on the bending arm 31 is used to reduce the bending stress thereof.

[0028] It should be noted that, in order to avoid the bottom bending part of the long face 2 and the short face 3 from interfering with each other during bending, in the embodiment, a first avoiding opening 11 is arranged at the end of the bending part of the long face 2 and the bottom face 1, and a second avoiding opening 12 is arranged at the end of the bending part of the short face 3 and the bottom face 1, the first avoiding opening 11 and the second avoiding opening 12 are arranged oppositely and form an arc corner 13 at the bottom of the long face 2 and the short face 3, that is, in the embodiment, the hollowing of the long face 2 and the short face 3 at the bottom of the bottom face 1 is realized through the design of the first avoiding opening 11, the second avoiding opening 12 and the arc corner 13, so as to avoid the problem of extrusion interference after bending, and the first avoiding opening 11 and the second avoiding opening 12 arranged secondly can also relatively reduce the bending stress and further improve the convenience of forming.

[0029] Considering that the bending arm 31 and the extension 21 are both arranged to bend outwardly in the embodiment, in order to realize the sleeving protection of the bending arm 31 and the extension 21, so as to avoid the problem that the corners of the two are damaged to the user or are easy to affect during use, the embodiment further comprises a sheath 4, the sheath 4 is in an L-shaped structure and is sleeved at the connecting corner of the long face 2 and the short face 3.

[0030] The two ends of the sheath 4 are provided with bending edges 41, and the ends of the sheath 4 are bent by 180 degrees in the embodiment, and the two bending edges 41 are respectively clamped between the extension 21 and the short face 3 and between the bending arm 31 and the long face 2, so as to fix the sheath 4 through the clamping force after bending, which is simple and convenient, and of course, in further embodiments, the sheath 4 can be further fixed by bonding or riveting.

[0031] It should be noted that, in the embodiment, two perforations 22 are arranged on each of the extensions 21, and two bending arms 31 are arranged on one side of each of the short faces 3.

[0032] In summary, in the embodiment, the long face 2 and the short face 3 are connected through secondary bending, so as to further reinforce the long face 2 and the short face 3, and the self-locking structure is realized through the mutual penetrating connection between the bending arm 31 and the extension 21 during bending, so as to effectively improve the forming strength of the shell and ensure the stability of the electric ceramic stove during use, and the one-time forming can be realized after bending, without the need for reinforcing by other parts, so as to save the processing procedure and reduce the demand for assembly parts.

[0033] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A bent structure for the metal bottom shell of an electric ceramic stove, comprising a bottom surface (1), two long surfaces (2) bent and connected to the two long sides of the bottom surface (1), and two short surfaces (3) bent to the two short sides of the bottom surface (1), characterized in that: At least one bent arm (31) is provided on both sides of the short surface (3), and an extension (21) is provided on both sides of the long surface (2). A through hole (22) is provided on the end face of the extension (21), and the bent arm (31) enters along the through hole (22), bends and fits against the end face of the long surface (2). The extension (21) is bent along the axis of the perforation (22) and then attached to the end face of the short face (3).

2. The bending structure of the metal bottom shell of an electric ceramic stove according to claim 1, characterized in that: The perforation (22) is a rectangular hole opened along the height direction of the bottom shell, and the height of the rectangular hole is greater than the height of the bent arm (31).

3. The bending structure of the metal bottom shell of an electric ceramic stove according to claim 1, characterized in that: At least one stress-reducing hole (23) is provided on the end face of the extension (21) and the bent arm (31), and the stress-reducing hole (23) of the extension (21) coincides with the axis of the through hole (22).

4. The bending structure of the metal bottom shell of an electric ceramic stove according to claim 1, characterized in that: A first clearance opening (11) is provided at the end of the bend between the long surface (2) and the bottom surface (1), and a second clearance opening (12) is provided at the end of the bend between the short surface (3) and the bottom surface (1). The first clearance opening (11) and the second clearance opening (12) are arranged opposite to each other and an arc corner (13) is formed at the bottom of the long surface (2) and the short surface (3).

5. The bending structure of the metal bottom shell of an electric ceramic stove according to claim 1, characterized in that: It also includes a sheath (4), which has an L-shaped structure and is fitted onto the corner where the long surface (2) and the short surface (3) meet; The sheath (4) has bent edges (41) at both ends.

6. The bending structure of the metal bottom shell of an electric ceramic stove according to claim 1, characterized in that: Each of the extensions (21) is provided with two perforations (22), and each of the short surfaces (3) is provided with two bent arms (31) on one side.

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