Heat preservation appliance

Abstract

The utility model discloses a heat preservation appliance which comprises a box body, a heat preservation cover and a heat preservation cover, the box body comprises a shell and an inner container, the shell is provided with a first concave part for containing the inner container, the first concave part is matched with the inner container, and the edge of an opening of the inner container protrudes outwards to form a first sealing part; buckles are arranged on the two symmetrical sides of the cover, the buckles are hinged to the cover, a sealing ring is arranged on the inner side of the cover, the edge of the sealing ring is bent to form a second sealing part, and when the buckles are buckled with the shell, the second sealing part abuts against the first sealing part. Through the second sealing part formed by bending the sealing ring, when the buckle is buckled with the shell, the first sealing part extrudes the second sealing part to deform, sealing of the inner container is achieved, meanwhile, when the cover is opened, deformation of the second sealing part recovers, the situation that the sealing ring sucks the inner container is avoided, and the risk that food is poured out when the cover is opened is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of food storage utensils, in particular to a heat preservation utensil. Background Art

[0002] At present, the inner liner and the upper cover of the thermal insulation device are generally sealed with a silicone sealing ring, which is pressed on the top edge or inner side of the inner liner to achieve sealing, so as to ensure that the food and soup will not leak out due to the overturning of the device when carrying food out. The inner liner of most thermal insulation devices is completely built-in, that is, the inner liner cannot be touched before the lid is opened, but when the lid is opened and lifted, the inner liner is easily sucked by the sealing rubber ring, causing the inner liner and the lid to be lifted up together. The sudden fall of the inner liner easily causes the risk of the food inside to fall out. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a heat preservation device, which can ensure the sealing effect while preventing the inner pot from being sucked up when the lid is opened, thereby preventing the food inside from falling out.

[0004] The heat preservation device according to the first aspect of the embodiment of the utility model includes: a box body, including a shell and an inner liner, the shell is provided with a first recess for accommodating the inner liner, the first recess matches the inner liner, and the opening edge of the inner liner protrudes outward to form a first sealing portion; a lid, symmetrically provided with buckles on two sides, the buckles are hinged to the lid, a sealing ring is provided on the inner side of the lid, the edge of the sealing ring is bent to form a second sealing portion, and when the buckle is buckled with the shell, the second sealing portion abuts against the first sealing portion.

[0005] The heat preservation device according to the embodiment of the utility model has at least the following beneficial effects: the second sealing part is formed by bending the sealing ring, so that when the buckle is buckled with the shell, the first sealing part squeezes the second sealing part to deform, thereby achieving the sealing of the inner pot; at the same time, when the lid is opened, the second sealing part is deformed and restored, so that the sealing ring is prevented from sucking the inner pot, thereby reducing the risk of dumping food when opening the lid.

[0006] According to some embodiments of the present invention, the end of the first sealing portion is bent.

[0007] According to some embodiments of the present invention, the first sealing portion is bent.

[0008] According to some embodiments of the utility model, a snap-in groove is provided on a side of the cover facing the shell, and the sealing ring is provided with an inserting portion matching the snap-in groove, and the inserting portion is plug-fitted with the snap-in groove.

[0009] According to some embodiments of the utility model, a positioning portion is formed on one side of the cover protruding toward the inner container, the positioning portion is arranged on the inner side of the sealing ring, the positioning portion is annular as a whole, and the positioning portion is plug-fitted with the inner container.

[0010] According to some embodiments of the present invention, a second recess is formed on the outer side of the shell, the second recess matches the buckle, and the buckle is accommodated in the second recess.

[0011] According to some embodiments of the utility model, an exhaust hole is formed on the end surface of the cover, and a switch valve is disposed in the exhaust hole, and the switch valve is used to control the opening and closing of the exhaust hole.

[0012] According to some embodiments of the utility model, the switch valve includes a valve body and an elastic member, a positioning plate is arranged in the exhaust hole, the positioning plate has an air hole, the valve body passes through the air hole, and the elastic member drives the valve body to move so that one end of the valve body blocks the air hole.

[0013] According to some embodiments of the utility model, the valve body includes a first piston and a second piston, the first piston is movably arranged in the exhaust hole, the first piston is radially provided with a first stopper, the first stopper abuts against the elastic member, the second piston passes through the air hole and is slidably connected to the first piston, a second stopper is arranged at one end of the second piston, and the second stopper blocks the air hole.

[0014] According to some embodiments of the utility model, the first piston is provided with a hollow conduit, a guide hole is opened on the side wall of the conduit, the second piston is provided with a connecting pipe, the connecting pipe is provided with a positioning block, the connecting pipe is sleeved with the conduit, and the positioning block is arranged in the guide hole.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 A schematic diagram of a heat preservation device according to an embodiment of the present utility model;

[0018] Figure 2 A cross-sectional view of a first embodiment of the heat preservation device of the utility model;

[0019] Figure 3 for Figure 2A local enlarged schematic diagram of the middle A;

[0020] Figure 4 A cross-sectional view of a second embodiment of the heat preservation device of the utility model;

[0021] Figure 5 for Figure 4 A local enlarged schematic diagram at B;

[0022] Figure 6 for Figure 4 A local enlarged schematic diagram at point C.

[0023] Description of reference numerals:

[0024] Cover 100, exhaust hole 101, positioning plate 102, air vent 103, buckle 110, exhaust valve 120, first piston 121, second piston 122, first stopper 123, elastic member 124, guide hole 125, positioning block 126, conduit 127, second stopper 128, connecting pipe 129, second sealing portion 130, clamping portion 132, clamping groove 133, positioning portion 134, silicone ring 140;

[0025] Box body 200 , second recess 201 , liner 210 , first sealing portion 211 . DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] Reference Figures 1 to 3 The heat preservation device of the first embodiment of the utility model includes: a box body 200, including a shell and an inner liner 210, the shell is provided with a first recessed portion for accommodating the inner liner 210, the first recessed portion matches the inner liner 210, and the opening edge of the inner liner 210 protrudes outward to form a first sealing portion 211; a lid 100, symmetrically provided with buckles 110 on both sides, the buckle 110 is hinged on the lid 100, and a sealing ring is provided on the inner side of the lid 100, and the edge of the sealing ring is bent to form a second sealing portion 130, and when the buckle 110 is buckled with the shell, the second sealing portion 130 abuts against the first sealing portion 211.

[0031] The second sealing portion 130 is formed by bending the sealing ring, so that when the buckle 110 is buckled with the shell, the first sealing portion 211 squeezes the second sealing portion 130 to deform, thereby sealing the inner liner 210. At the same time, when the lid 100 is opened, the second sealing portion 130 is deformed and restored, preventing the sealing ring from sucking the inner liner 210, thereby reducing the risk of food spilling when the lid is opened.

[0032] It is understandable that, referring to Figure 2 and Figure 3 In some embodiments, the end of the first sealing portion 211 is bent to enhance the structural strength of the first sealing portion 211 and prevent the first sealing portion 211 from deforming and causing leakage.

[0033] It is also understandable that, with reference to Figure 4 and Figure 5 The first sealing portion 211 may also be bent to enhance the structural strength of the first sealing portion 211 , thereby reducing the risk of deformation when the first sealing portion 211 abuts against the second sealing portion 130 and avoiding reduction in airtightness.

[0034] It is understandable that, referring to Figure 3 A snap-in groove 133 is provided on one side of the cover 100 facing the housing, and a plug-in portion matching the snap-in groove 133 is provided on the sealing ring, and the plug-in portion is plugged and matched with the snap-in groove 133. By plugging the plug-in portion into the snap-in groove 133, the plug-in portion and the snap-in groove 133 are interference-fitted, and the friction between the plug-in portion and the side wall of the snap-in groove 133 is utilized to stabilize the sealing ring on the cover 100, and at the same time, the sealing ring is conveniently disassembled for cleaning. The sealing ring is a rubber sealing ring, and the plug-in portion is interference-fitted with the snap-in groove 133, and the plug-in portion is squeezed, so that the plug-in portion is pressed against the side wall of the snap-in groove 133.

[0035] It is understandable that, referring to Figure 2 and Figure 3 The lid 100 is protruded toward the side of the inner liner 210 to form a positioning portion 134, which is arranged on the inner side of the sealing ring. The positioning portion 134 is annular as a whole, and the positioning portion 134 is plugged into the inner liner 210. By plugging the positioning portion 134 into the inner liner 210, when the lid 100 and the box body 200 are covered, the positioning portion 134 cooperates with the side wall of the inner liner 210, reducing the shaking of the lid 100, preventing the first sealing portion 211 from separating from the second sealing portion 130, and improving the sealing stability of the lid 100.

[0036] It is understandable that, referring to Figure 1 and Figure 2 The outer side of the shell is provided with a second recess 201, which matches the buckle 110, and the buckle 110 is accommodated in the second recess 201. A buckle connection part is provided on the outer side of the shell, which is arranged in the second recess 201. When the buckle 110 is buckled with the buckle connection part, the buckle 110 is accommodated in the second recess 201, so that the outer surface of the buckle 110 and the outer side surface of the shell are kept flat, so that the appearance of the heat preservation device is beautiful.

[0037] It is understandable that, referring to Figure 4 and Figure 6 The end surface of the cover 100 is provided with an exhaust hole 101, and a switch valve is provided in the exhaust hole 101, and the switch valve is used to control the opening and closing of the exhaust hole 101. By providing the exhaust hole 101 on the end surface of the cover 100, before opening the cover 100, the exhaust hole 101 is opened first, so that the internal air pressure of the liner 210 is balanced with the external air pressure, thereby reducing the difficulty of opening the cover 100.

[0038] It is understandable that, referring to Figure 4 and Figure 6 The switch valve includes a valve body and an elastic member 124. A positioning plate 102 is provided in the exhaust hole 101. The positioning plate 102 is provided with an air hole 103. The valve body passes through the air hole 103. The elastic member 124 drives the valve body to move so that one end of the valve body blocks the air hole 103. By pressing the valve body, the air hole 103 is opened, and the inner liner 210 is connected to the outside through the exhaust hole 101 and the air hole 103, so that the air pressure inside and outside the heat preservation device is balanced, and it is convenient to open the lid 100. In the sealed state, the elastic member 124 drives the valve body to reset, closes the air hole 103, and keeps the inner liner 210 sealed.

[0039] Specifically, refer to Figure 4 and Figure 6The valve body includes a first piston 121 and a second piston 122. The first piston 121 is movably disposed in the exhaust hole 101. The first piston 121 is provided with a first stopper 123 in the radial direction. The first stopper 123 abuts against the elastic member 124. The second piston 122 passes through the air hole 103 and is slidably connected with the first piston 121. A second stopper 128 is disposed at one end of the second piston 122. The second stopper 128 blocks the air hole 103. The first stopper 123 increases the pressing contact area and improves the pressing feel. By pressing the first stopper 123, the first stopper 123 drives the first piston 121 to move, and the second piston 122 moves with the first piston 121, so that the second stopper 128 opens the air hole 103. The gas flows along the gap between the first stopper 123 and the exhaust hole 101, so that the air pressure inside and outside the box body 200 is balanced.

[0040] In addition, it is also understandable that, with reference to Figure 6 A silicone ring 140 is sleeved on the connecting tube 129 and driven by the second stopper 128 so that the silicone ring 140 is closely attached to the end surface of the air vent 103, further improving the air tightness and preventing air leakage.

[0041] It is understandable that, referring to Figure 4 and Figure 6 The first piston 121 is provided with a hollow conduit 127, the side wall of the conduit 127 is provided with a guide hole 125, the second piston 122 is provided with a connecting pipe 129, the connecting pipe 129 is provided with a positioning block 126, the connecting pipe 129 is sleeved with the conduit 127, and the positioning block 126 is arranged in the guide hole 125. The connecting pipe 129 is sleeved with the conduit 127, so that the connecting pipe 129 slides along the conduit 127. When the first piston 121 is pressed, the first piston 121 compresses the elastic member 124 downward, and the positioning block 126 slides in the guide hole 125 until the positioning block 126 abuts against the side wall of one end of the guide hole 125, and then the second piston 122 is driven by the first piston 121 and the second stopper 128 is away from the air vent 103, so that the air vent 103 is opened, and the connecting pipe 129 is sleeved with the conduit 127, so that the stroke of the first piston 121 is increased, the pressing feel is improved, and the user experience is improved. When the first piston 121 is released, the elastic member 124 drives the first piston 121 to reset until the positioning block 126 abuts against the side wall of the other end of the guide hole 125, and then the second piston 122 moves to follow the first piston 121 until the second stopper 128 closes the air vent 103 again.

[0042] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A heat preservation device, characterized in that: include: The box body comprises a shell and an inner liner, wherein the shell is provided with a first recess for accommodating the inner liner, the first recess matches the inner liner, and an opening edge of the inner liner protrudes outward to form a first sealing portion; The cover is symmetrically provided with buckles on both sides, the buckles are hinged on the cover, a sealing ring is provided on the inner side of the cover, the edge of the sealing ring is bent to form a second sealing part, and when the buckle is buckled with the shell, the second sealing part abuts against the first sealing part.

2. The heat preservation device according to claim 1, characterized in that: The end of the first sealing portion is bent.

3. The heat preservation device according to claim 1, characterized in that: The first sealing portion is bent.

4. The heat preservation device according to claim 1, characterized in that: A clamping groove is provided on one side of the cover facing the shell, and the sealing ring is provided with an inserting portion matching the clamping groove, and the inserting portion is plugged and matched with the clamping groove.

5. The heat preservation device according to claim 1, characterized in that: The lid is protruded toward one side of the inner container to form a positioning portion, the positioning portion is arranged on the inner side of the sealing ring, the positioning portion is annular as a whole, and the positioning portion is plug-fitted with the inner container.

6. The heat preservation device according to claim 1, characterized in that: A second recess is formed on the outer side of the shell, the second recess matches the buckle, and the buckle is accommodated in the second recess.

7. The heat preservation device according to claim 1, characterized in that: An exhaust hole is provided on the end surface of the cover, and a switch valve is arranged in the exhaust hole. The switch valve is used to control the opening and closing of the exhaust hole.

8. The heat preservation device according to claim 7, characterized in that: The switch valve includes a valve body and an elastic member. A positioning plate is arranged in the exhaust hole. The positioning plate has an air hole. The valve body passes through the air hole. The elastic member drives the valve body to move so that one end of the valve body blocks the air hole.

9. The heat preservation device according to claim 8, characterized in that: The valve body includes a first piston and a second piston, the first piston is movably arranged in the exhaust hole, the first piston is radially provided with a first stopper, the first stopper abuts against the elastic member, the second piston passes through the air hole and is slidably connected to the first piston, one end of the second piston is provided with a second stopper, the second stopper blocks the air hole.

10. The heat preservation device according to claim 9, characterized in that: The first piston is provided with a hollow conduit, a guide hole is opened on the side wall of the conduit, the second piston is provided with a connecting pipe, the connecting pipe is provided with a positioning block, the connecting pipe is sleeved with the conduit, and the positioning block is arranged in the guide hole.

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