CN221228874U

CN221228874U - Electrothermal lunch box

Info

Publication number: CN221228874U
Application number: CN202323084689.4U
Authority: CN
Inventors: 汪全建; 陈丽君; 潘华友
Original assignee: Hefei Amos Electric Co ltd
Current assignee: Hefei Amos Electric Co ltd
Priority date: 2023-11-15
Filing date: 2023-11-15
Publication date: 2024-06-28
Anticipated expiration: 2033-11-15

Abstract

The utility model provides an electric heating lunch box, which comprises a box body with an open containing cavity, wherein an inner box is contained in the containing cavity, and a box cover is removably arranged on the box body to close the opening of the containing cavity; the root of the handle is provided with a pivot, and the pivot is provided with a limiting surface and a positioning surface; the mounting hole is arranged on the side wall of the electric heating lunch box and comprises a limiting hole and a rotating hole; the locating surface is in rotary fit with the rotary hole, and when the locating surface is lifted, the limiting hole is clamped with the limiting surface to limit the rotation of the lifting handle. The electric heating lunch box enters the limiting hole of the mounting hole through the limiting surface of the pivot in the lifting state, and the pivot is clamped through the shape of the limiting surface of the pivot, so that the electric heating lunch box cannot rotate, and further, the limiting in the lifting state is realized, and therefore, the electric heating lunch box can be prevented from shaking left and right when being carried or hung.

Description

Electrothermal lunch box

Technical Field

The utility model relates to the technical field of electric heating cooking equipment, in particular to an electric heating lunch box.

Background

An electrothermal canteen is a portable device for heating food. The temperature of the food in the kitchen is maintained or increased by electric heating, so that the food is kept at the temperature within a certain time and is not spoiled, and further, the food is eaten when the kitchen is inconvenient to operate. Can be generally used for solving the problem of abdomen wrapping during outdoor operation or on-duty.

Considering the portability of the electric heating lunch box, a handle is generally arranged, so that the electric heating lunch box is convenient to carry for long-distance transfer. However, even with handles, there are still some problems. The handle is generally rotatably arranged around the root of the handle on the lunch box, so that the handle can be offset to one side when the lunch box is static, and the lunch box is convenient to take. The problem is that the general handle only realizes the rotation function, but does not have the limit function when lifting. When the handle is lifted to transfer the lunch box, the connection between the handle and the lunch box is free, so that the lunch box can shake left and right around the root of the handle when being lifted/hung, the gravity center can swing left and right continuously, the similar transfer action is inconvenient for consumers, and the artificial efficiency is affected.

Disclosure of utility model

The utility model provides an electrothermal lunch box, which aims at solving the problems that the handle of the traditional electrothermal lunch box is movably arranged in any state, so that the lunch box can continuously rotate around the root of the handle when being carried/hung, and the labor efficiency is affected.

The technical scheme of the utility model provides an electric heating lunch box, which comprises a box body with an open containing cavity, wherein an inner box is contained in the containing cavity, and a box cover is removably arranged on the box body to close the opening of the containing cavity; and also comprises

The root of the handle is provided with a pivot, and the pivot is provided with a limiting surface and a positioning surface;

The mounting hole is arranged on the side wall of the electric heating lunch box and comprises a limiting hole and a rotating hole;

the positioning surface is in rotary fit with the rotary hole; when the lifting handle is lifted, the limiting hole is clamped with the limiting surface to limit rotation of the lifting handle.

Preferably, the limiting hole and the rotating hole are communicated from top to bottom, and the limiting surface and the positioning surface are arranged around the periphery of the pivot.

Preferably, the limiting surface is a parallel plane arranged on the periphery of the pivot, and the distance between the parallel planes is equal to the width of the limiting hole.

Preferably, the limiting surface is a surface connected with the limiting surface on the pivot, and the circumcircle of the positioning surface has the same diameter as the rotating hole.

Preferably, the limiting hole and the rotating hole are coaxially and sequentially arranged, and the limiting surface and the positioning surface are coaxially and sequentially arranged; the handle also comprises a protruding part, the side wall of the electric heating lunch box is also provided with an inner concave part, and the protruding part can enter the inner concave part when the handle is lifted, so that the limiting hole enters the limiting surface, and then the handle is limited.

Preferably, the mounting hole and the concave part are arranged on the side wall of the box body.

Preferably, the mounting hole is formed in a side wall of the box body, and the concave portion is formed in a side wall of the box cover.

Preferably, the mounting hole is provided in a side wall of the case.

Preferably, the inner cover is detachably arranged in the space defined by the containing cavity and the box cover, is positioned at the opening of the inner box and seals the inner box.

Preferably, different chambers are provided inside the inner case to store different kinds of contents.

Preferably, a sealing ring is arranged on the whole periphery of the box cover, which is contacted with the box body.

Preferably, the sealing ring is provided with an inward protruding part, and the protruding part extends into a fixing hole correspondingly arranged in the circumferential direction of the box cover.

The electric heating lunch box realizes the limit of the lifting handle in the lifting state by matching the pivot with the mounting hole, namely, the limit surface of the pivot enters the limit hole of the mounting hole in the lifting state, and the pivot is blocked by the shape of the limit surface of the pivot, so that the electric heating lunch box cannot rotate, and further, the limit in the state is realized, thereby ensuring that the electric heating lunch box cannot shake left and right when being carried or hung, and improving the artificial efficiency.

Drawings

FIG. 1 is an exploded view of an electrothermal canteen of the present utility model;

FIG. 2 is a schematic view of a part of the root of the handle 4 of the electrothermal canteen of the present utility model;

FIG. 3 is a schematic diagram of the principle of action of the handle 4 of the electrothermal canteen of the present utility model;

FIG. 4 is a schematic view of another embodiment of the electrothermal canteen of the present utility model.

In the drawing the view of the figure,

1, Box body 2, inner box 3, box cover 4, lifting handle 11, holding cavity 12, mounting hole 13, inner concave portion 21, inner cover 31, sealing ring 41, pivot 42, protrusion 121, limit hole 122, rotary hole 411, limit surface 412 and locating surface

Detailed Description

The present utility model will be described in detail below with reference to the drawings and the specific embodiments, and in the present specification, the dimensional proportion of the drawings does not represent the actual dimensional proportion, but only represents the relative positional relationship and connection relationship between the components, and the components with the same names or the same reference numerals represent similar or identical structures, and are limited to the schematic purposes.

As shown in fig. 1, the electrothermal canteen of the present utility model includes a case 1 having a heating function, the case 1 has an open cavity 11, an inner case 2 is accommodated in the cavity 11, and the case 1 can be heated to maintain or raise the temperature of the contents of an installation hole 12. The cap 3 is removably provided on the chamber 11 for closing an opening of the chamber 11. When the inner box 2 is placed in the containing cavity 11, the box cover 3 is covered, namely, the inner box 2 is sealed in the containing cavity 11, so that the inner box 2 is hardly in direct contact with the outside, the cleanliness of the content of the inner box 2 can be ensured, and the health of foods can be ensured. It is needless to say that the lid 3 needs to completely isolate the interior of the cavity 11 from the outside, and in fact, in order to avoid the increase of the internal pressure caused by the steam generated in the inner case 2 during heating, a pressure relief device is generally provided on the lid 3, and when the pressure is high, the internal gas is exhausted, which is well known to those skilled in the art. In fact, as shown in fig. 1, the electrothermal canteen is also preferably provided with an inner lid 21, and the inner lid 21 is detachably disposed in a space defined by the cavity 11 and the lid 3 and at an opening of the inner case 2. The inner lid 21 closes the inner case 2 when disposed at the opening of the inner case 2, ensuring that the contents in the inner case 2 do not leak out. The lid 3 abuts against the inner lid 21 in the closed state, thereby restricting the position of the inner lid 21 at the opening of the inner lid 2 so as not to come out. Different chambers may be provided inside the inner case 2 to store different kinds of contents, such as different dishes and staple food.

The box cover 3 and the box body 1 are sealed, and can be detachably fixed, such as in a threaded connection or a clamping connection, so that the box cover 3 and the box body 1 form a reliable and force-transmissible whole. The two can be only closed, for example, a box cover 3 with a proper size is directly covered on the box body 1, and the handle 4 is generally arranged on the box body 1 at the moment, so that the problem that the handle 4 is arranged on the box cover 3, so that the box cover 3 and the box body 1 are separated after being lifted, and the content is splashed out is solved. The whole Zhou You of the box cover 3 contacted with the box body 1 is provided with the sealing ring 31 so as to seal the joint of the box cover 3 and the box body 1 when the box cover 3 is covered on the box body 1, and ensure that a certain contact force exists between the box cover 3 and the box body 1 and the box cover 3 cannot be easily separated. The sealing ring 31 has an inward protruding portion, and the protruding portion extends into a fixing hole correspondingly provided in the circumferential direction of the box cover 3, so that the sealing ring 31 is prevented from being separated from the box cover 3 when the box cover 3 is taken or put or the box cover 3 is cleaned.

The electrothermal canteen also comprises a handle 4 for lifting/hanging etc. The root of the handle 4 is rotatably arranged on the side wall of the electrothermal lunch box. The side wall of the electrothermal canteen is provided with a mounting hole 12, and the mounting hole 12 comprises a limiting hole 121 and a rotating hole 122. The root of the handle 4 is provided with a pivot 41, and the pivot 41 is provided with a limiting surface 411 matched with the limiting hole 121 and a positioning surface 412 matched with the rotating hole 122. When the handle 4 is lifted, the limiting surface 411 is clamped between the limiting holes 121, so as to limit the relative rotation between the mounting hole 12 and the pivot 41, so that the handle 4 is kept in the middle position, and a consumer can conveniently lift the electrothermal lunch box without shaking. The rotary hole 122 is in rotary fit with the positioning surface 412, so that the pivot 41 rotates around the shaft in the mounting hole 12, and the handle 4 can rotate freely on the electrothermal lunch box.

Specifically, as shown in fig. 2, the side wall of the electrothermal canteen is provided with a mounting hole 12, and the root of the handle 4 extends into the pivot 41 of the handle 4. The pivot 41 rotates in the mounting hole 12 to realize the rotation of the handle 4 around the pivot 41, so that the handle 4 can deviate from the accommodating cavity 11 when the electrothermal lunch box is static, and can automatically return to the middle surface position of the accommodating cavity 11 for carrying or hanging when the electrothermal lunch box is lifted because the weight of the box body 1 falls down. The mounting hole 12 includes a limiting hole 121 and a rotation hole 122 penetrating from top to bottom. The limiting hole 121 extends up and down and has a first width D, and the rotating hole 122 is located below the limiting hole 121 and is a circular hole with a diameter D, and D > D. The limiting surface 411 is provided with two pairs of limiting surfaces 411 with a first width D, the limiting surfaces 411 are arranged along the extending direction of the handle 4, and the maximum circumcircle of the limiting surfaces 411 is D.

The spacing hole 121 and the spacing face 411 can realize spacing of handle 4 in specific direction, prevent that the electric heating lunch-box from rocking. The rotation hole 122 is engaged with the handle 4 for normal rotation of the handle 4. Referring to fig. 3, in the rest state, the handle 4 is not pulled upward, the pivot 41 falls into the rotation hole 122, and at this time, the maximum circumcircle diameter of the pivot 41 is the same as the diameter of the rotation hole 122, and the pivot 41 can freely rotate around the axis in the rotation hole 122, that is, the handle 4 freely rotates around the root. The handle 4 can be rotated on one side of the containing cavity 11 to leave the position above the containing cavity 11, so that the box cover 3 and the inner box 2 can be conveniently taken and placed. When the electric heating lunch box needs to be lifted/hung, the handle 4 needs to be naturally rotated to the upward direction and lifted, at this time, the handle 4 is stressed upward, and the direction of the limiting surface 411 is exactly aligned with the direction of the limiting hole 121, so that the pivot 41 moves into the limiting hole 121 from the rotating hole 122 and is strictly limited in the limiting hole 121. Therefore, when the lifting handle 4 is lifted or hung and the like, the lifting handle 4 can not rotate freely because the pivot 41 enters the limiting hole 121 and can only be kept at the position of the grabbing line, so that the problem that the electric heating lunch box shakes around the root of the lifting handle 4 under the lifting condition is avoided. It is obvious that, preferably, the surface of the pivot 41 connected with the limiting surface 411 may be configured as an arc which is equal in diameter and concentric with the rotation hole 122, so as to ensure the contact area of the pivot 41 when rotating in the rotation hole 122, and make the rotation of the handle 4 smoother.

Fig. 4 is a schematic view of another embodiment, in which the limiting hole 121 and the rotating hole 122 are disposed side by side, and fig. 4 is intended to show an embodiment in which the limiting hole 121 and the rotating hole 122 are disposed coaxially. Wherein the limiting hole 121 is disposed coaxially with the rotating hole 122, and the limiting surface 411 is disposed coaxially with the rotating hole. This embodiment also includes a protrusion 42 provided on the handle 4 and a recess 13 provided on the side wall of the electrothermal canteen. Typically, when the pivot 41 is placed in the mounting hole 12, the handle 4 and the box 1 can rotate freely by matching the rotation hole 122 with the positioning surface 412. When the handle 4 is lifted, the protruding portion 42 enters the concave portion 13, so that the pivot 41 moves inwards along the axial direction due to the elasticity of the handle 4, and the limiting surface 411 enters the limiting hole 121, so that the space between the handle 4 and the side wall of the electrothermal lunch box is limited, and therefore the inner box 2 and the like are not swayed any more when the handle 4 is lifted.

The handle 4 is preferably arranged on the side wall of the box body 1, so that the problem that the box body 1 falls off and the content is splashed due to the fact that the connection between the box cover 3 and the box body 1 is unreliable when the handle 4 is arranged on the box cover 3 can be avoided. The recess 13 is preferably provided on the lid 3 such that when lifted, the mating relationship between the recess 13 and the projection 42 simultaneously defines the position of the lid 3, avoiding the problem that the lid 3 may come off merely by a contact connection with the body 1 by means of a certain pressure, such as the above-mentioned solutions using a sealing ring for sealing and a contact force between the two.

The foregoing is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and various modifications and improvements made by those skilled in the art to which the utility model pertains will fall within the scope of the utility model as defined by the appended claims without departing from the spirit of the utility model.

Claims

1. An electrothermal lunch box comprises a box body (1) with an open containing cavity (11), wherein an inner box (2) is contained in the containing cavity (11), and a box cover (3) is removably arranged on the box body (1) and seals the opening of the containing cavity (11); characterized by further comprising:

The handle (4), the root of the handle (4) is provided with a pivot (41), and the pivot (41) is provided with a limiting surface (411) and a positioning surface (412);

The mounting hole (12), the mounting hole (12) is set up in the sidewall of the electrothermal lunch-box, the mounting hole (12) includes spacing hole (121) and rotary hole (122);

the positioning surface (412) is in rotary fit with the rotary hole (122); when the lifting is carried out, the limiting hole (121) is clamped with the limiting surface (411) to limit the rotation of the lifting handle (4).

2. The electrothermal canteen according to claim 1, wherein the limiting hole (121) and the rotary hole (122) are provided to penetrate from top to bottom, and the limiting surface (411) and the positioning surface (412) are provided around the periphery of the pivot shaft (41).

3. An electrothermal canteen according to claim 2, wherein the limiting surface (411) is a parallel plane provided on the outer periphery of the pivot (41), and the interval between the parallel planes is equal to the width of the limiting hole (121).

4. The electrothermal canteen according to claim 2, wherein the limiting surface (411) is a surface of the pivot (41) connected with the limiting surface (411), and the circumcircle of the positioning surface (412) has the same diameter as the rotating hole (122).

5. The electrothermal canteen according to claim 1, wherein the limiting hole (121) and the rotary hole (122) are coaxially and sequentially arranged, and the limiting surface (411) and the positioning surface (412) are coaxially and sequentially arranged; the handle (4) further comprises a protruding portion (42), the side wall of the electric heating lunch box is further provided with an inner concave portion (13), the protruding portion (42) can enter the inner concave portion (13) when the handle (4) is lifted, and the limiting hole (121) enters the limiting surface (411) to limit the handle (4).

6. An electrothermal canteen according to claim 5, wherein the mounting hole (12) and the recess (13) are provided in a side wall of the case body (1).

7. An electrothermal canteen according to claim 5, wherein the mounting hole (12) is provided in a side wall of the case body (1), and the concave portion (13) is provided in a side wall of the case cover (3).

8. An electrothermal canteen according to any one of claims 1, 2, 5, wherein the mounting aperture (12) is provided in a side wall of the case (1).

9. The electrothermal canteen according to claim 1, further comprising an inner lid (21), wherein the inner lid (21) is detachably disposed in a space defined by the cavity (11) and the lid (3) and is located at an opening of the inner case (2), closing the inner case (2).

10. An electrothermal canteen according to claim 1, characterized in that the inner case (2) is internally provided with different compartments for storing different kinds of contents.