CN214340644U - Heating lunch box with waterproof structure - Google Patents

Abstract

The utility model discloses a heating lunch-box with waterproof construction, including the drain pan that has heavy platform, install the inner bag in heavy platform and cover and close the top cap that the drain pan wrapped up the inner bag, be equipped with the heat-generating body of being connected with the power electricity in the heavy platform, the terminal surface of heavy platform is equipped with the annular around its oral area, the sealing washer has been arranged in the annular, the outside extension in edge of inner bag has a supporting bench, the relative annular in bottom surface of supporting bench is equipped with the bulge loop, heavy platform is arranged in to the inner bag, the heavy platform terminal surface of supporting bench butt, make the bulge loop insert annular extrusion sealing washer, because the inner bag is at the in-process of packing into, the inner bag does not contact with the sealing washer, can not make the sealing washer shift, make the sealed reliable of drain pan and inner bag, and the packaging efficiency of inner bag has been improved.

Description

Heating lunch box with waterproof structure

Technical Field

The utility model relates to a small household electrical appliances technical field, especially a heating lunch-box with waterproof construction.

Background

The heating lunch box heats food in the inner container through the heating body, and the heating lunch box needs to be cleaned by water after being used, so the heating lunch box has a waterproof function. Common heating lunch-box is including having the drain pan that sinks the platform, the setting is at the inner bag that sinks on the platform and the top cap that the lid closed the drain pan, the heat-generating body is installed in order to heat the inner bag to the bottom of sinking the platform, the support frame is installed to the inner wall of sinking the platform, the sealing washer side direction is packed into on the support frame, during the equipment, the heavy platform of inner bag packing into, penetrate the sealing washer again, at the in-process that the inner bag penetrated the sealing washer, the lateral wall and the sealing washer friction of inner bag, make the sealing washer scrape out from the support frame easily, cause the inner bag to be sealed not tight with sinking the platform, during the washing heating lunch-box, water easily enters into and sinks the platform, damage the electrical components in sinking the platform, influence the use of heating lunch-box.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a heating lunch box with a waterproof structure.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a heating lunch-box with waterproof construction, closes the top cap of drain pan with the inner bag parcel including the drain pan that has heavy platform, setting inner bag and the lid in heavy platform, is equipped with the heat-generating body of being connected with the power electricity in the heavy platform, the terminal surface of heavy platform is equipped with the annular around its oral area, has arranged the sealing washer in the annular, and the marginal outside extension of inner bag has a supporting bench, and the relative annular in bottom surface of supporting bench is equipped with the bulge loop, and heavy platform is arranged in to the inner bag, and the heavy platform terminal surface of supporting bench butt makes the bulge loop insert annular extrusion sealing washer, realizes the sealed butt of inner bag and drain pan.

The bottom surface of the top cover stretches out of the surrounding wall towards the inner container, the side wall of the surrounding wall is annularly provided with a heat preservation ring, the top cover covers the bottom shell, and the surrounding wall stretches into the inner container, so that the heat preservation ring is abutted against the wall surface of the inner container to form a seal.

The outer wall surface of the surrounding wall is provided with a groove corresponding to the heat preservation ring, and the heat preservation ring is arranged in the groove to limit the position of the heat preservation ring.

The inner wall of the sinking platform is provided with a counter bore which penetrates out of the bottom shell, a magnetic connector which is electrically connected with the heating body is installed in the counter bore, a sealing sleeve is arranged between the counter bore and the magnetic connector, and the magnetic connector penetrates into the sealing sleeve to abut against the counter bore so as to be in sealing connection with the counter bore.

And a pressing plate is arranged on the back surface of the magnetic connector, and the pressing plate is fixed on the inner wall of the sinking platform by a fastener so as to tightly press the magnetic connector on the counter bore.

The heat-generating body is arranged on the bottom of the sinking platform, the heat-generating body is arranged on the heat-generating body, and the heat-generating body is arranged on the heat-generating body.

The utility model has the advantages that: the utility model discloses a heavy platform is equipped with the annular at its terminal surface, during the equipment, in earlier packing the sealing washer into the annular to the position of restriction sealing washer, the inner bag is packed into to the refill, at the in-process of the inner bag of packing into, the inner bag not with sealing washer contact friction, can not make the sealing washer shift, but the heavy platform disect insertion annular of packing into along with the inner bag of bulge loop in addition and support and press the sealing washer, make the sealed reliable of drain pan and inner bag, improved the packaging efficiency of inner bag moreover.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic diagram of FIG. 1, taken apart;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is a partially enlarged schematic view of the utility model at a;

fig. 5 is a schematic view of the bottom case and the control circuit board according to the present invention.

Detailed Description

Referring to fig. 1 to 5, the utility model discloses a drain pan 1, inner bag 2 and top cap 3, drain pan 1 have heavy platform 4, are equipped with inner bag 2 in the heavy platform 4, are equipped with heat-generating body 5 between the bottom of heavy platform 4 and inner bag 2, and top cap 3 lid closes drain pan 1 and wraps up inner bag 2 wherein, and the power passes through behind the electricity, and heat-generating body 5 heats the food in order to heat inner bag 2 to inner bag 2. In order to enhance the sealing between the liner 2 and the sinking platform 4, the end surface of the sinking platform 4 is provided with a ring groove 41 around the mouth part, a sealing ring 42 is arranged in the ring groove 41, the edge of the liner 2 extends outwards to form a supporting platform 21, the bottom surface of the supporting platform 21 is provided with a convex ring 22 corresponding to the ring groove 41, when assembling, the sealing ring 42 is firstly arranged in the ring groove 41, then the liner 2 is arranged in the sinking platform 4, the bottom surface of the supporting platform 21 is abutted against the end surface of the sinking platform 4, the convex ring 22 is inserted into the ring groove 41 and is abutted against the sealing ring 42, the sealing ring 42 is elastically deformed to make the convex ring 22 and the ring groove 41 in sealing joint, so as to realize the sealing abutment between the liner 2 and the bottom shell 1, in the assembling process, the side wall of the liner 2 is not contacted with the sealing ring 42, the sealing ring 42 cannot be displaced, in addition, the position of the sealing ring groove 41 limits the position of the sealing ring 42, the displacement of the sealing ring 42 can be further prevented, and the sealing reliability between the liner 2 and the sinking platform 4 can be improved, and this structure has simplified the seal structure between inner bag 2 and heavy platform 4, has reduced the support frame, is favorable to improving the installation effectiveness of whole heating lunch-box.

As preferred, the utility model discloses a top cap 3 is equipped with leg 31 in its bottom surface, and leg 31 extends to inner bag 2 from the bottom surface of top cap 3 to fit with a contraceptive ring at leg 31's lateral wall and be equipped with heat preservation circle 32, when top cap 3 lid closed drain pan 1, leg 31 stretches into inner bag 2, makes heat preservation circle 32 and inner bag 2's wall butt, and like this, inner bag 2 just can form confined space through heat preservation circle 32 and top cap 3, is favorable to reducing the calorific loss in the inner bag 2, prolongs the heat preservation time of lunch-box that heats. Further, the outer wall surface of the surrounding wall 31 is provided with a groove 33 corresponding to the heat preservation ring 32, the heat preservation ring 32 is arranged in the groove 33, the movement of the heat preservation ring 32 can be limited, when the bottom case 1 covers the top cover 3 or takes away the top cover 3, the groove 33 can limit the heat preservation ring 32 in the groove, the heat preservation ring is not easy to be separated, and the heat preservation ring 32 is ensured to be reliably connected.

In this embodiment, the counter bore 43 is formed in the inner wall of the counter bore 4, the counter bore 43 penetrates through the bottom case 1, the magnetic connector 6 is installed in the counter bore 43, the magnetic connector 6 is electrically connected with the heating element 5 in the counter bore 4, a power line is externally plugged in the magnetic connector 6 to supply power to the heating element 5, in order to prevent water from entering the counter bore 4 from a gap between the magnetic connector 6 and the counter bore 43, a sealing sleeve 61 is arranged between the counter bore 43 and the magnetic connector 6, the magnetic connector 6 penetrates through the sealing sleeve 61 and then presses against the counter bore 43, so that the sealing sleeve 61 fills the gap between the magnetic connector 6 and the counter bore 43, and the sealing of the counter bore 4 is realized. Furthermore, a pressure plate 62 is arranged on the back surface of the magnetic connector 6, the pressure plate 62 is fastened on the inner wall surface of the sinking platform 4 through a fastener, so that the magnetic connector 6 compresses the counter bore 43, the sealing sleeve 61 deforms under extrusion, gaps between the counter bore 43 and the magnetic connector 6 can be filled well, and a better sealing effect is achieved.

The control circuit board 7 is arranged in the sinking platform 4, the control circuit board 7 is respectively electrically connected with the heating body 5 and the power supply to form a circuit, in order to realize that the control circuit board 7 is quickly installed on the sinking platform 4, at least two oppositely-arranged hooks 44 are arranged on the side wall of the sinking platform 4, when the control circuit board 7 is installed, the oppositely-arranged hooks 44 buckle the two ends of the control circuit board 7 on the side wall of the sinking platform 4, the installation is convenient and quick, tools and fasteners are not needed, and the assembly efficiency of parts is improved.

The lunch box of heating still includes connecting band 8, and the both ends of connecting band 8 are equipped with respectively and detain hole 81, and the double-phase opposite lateral wall of drain pan 1 is equipped with outside convex knot ear 11, and connecting band 8 strides across top cap 3, makes two knot holes 81 correspond and detains two knot ears 11 of going into, compresses tightly top cap 3 on drain pan 1 through connecting band 8, prevents that top cap 3 pine from taking off, avoids the food in the inner bag 2 to pour out.

Claims (7)

1. The utility model provides a heating lunch-box with waterproof construction, closes top cap (3) of drain pan (1) with inner bag (2) parcel including drain pan (1) that has heavy platform (4), setting in heavy platform (4) and lid, is equipped with in heavy platform (4) with the heat-generating body (5) of power electricity connection, its characterized in that: the terminal surface of heavy platform (4) is equipped with annular (41) around its oral area, has arranged sealing washer (42) in annular (41), and the edge of inner bag (2) outwards extends has brace table (21), and the relative annular (41) in bottom surface of brace table (21) is equipped with bulge loop (22), and heavy platform (4) are arranged in to inner bag (2), brace table (21) butt heavy platform terminal surface, makes bulge loop (22) insert annular (41) extrusion sealing washer (42), realizes the sealed butt of inner bag (2) and drain pan (1).

2. The heating lunch box of claim 1, wherein: the bottom surface of top cap (3) to inner bag (2) stretch out leg (31), and the lateral wall of leg (31) encircles and is equipped with heat preservation circle (32), and top cap (3) lid closes drain pan (1), leg (31) stretch into inner bag (2), make heat preservation circle (32) and the wall butt of inner bag (2) form sealedly.

3. The heating lunch box of claim 2, wherein: the outer wall surface of the surrounding wall (31) is provided with a groove (33) corresponding to the heat preservation ring (32), and the heat preservation ring (32) is arranged in the groove (33) to limit the position of the heat preservation ring (32).

4. The heating lunch box of claim 1, wherein: the inner wall of the sinking platform (4) is provided with a counter bore (43) penetrating out of the bottom shell (1), a magnetic connector (6) electrically connected with the heating body (5) is installed in the counter bore (43), a sealing sleeve (61) is arranged between the counter bore (43) and the magnetic connector (6), and the magnetic connector (6) penetrates through the sealing sleeve (61) to press the counter bore (43), so that the magnetic connector (6) is hermetically connected with the counter bore (43).

5. The heating lunch box of claim 4, wherein: and a pressing plate (62) is arranged on the back surface of the magnetic connector (6), and the pressing plate (62) is fixed on the inner wall of the sinking platform by a fastener so as to tightly press the magnetic connector (6) on the counter bore (43).

6. The heating lunch box of claim 1, wherein: the heat-generating device is characterized in that a control circuit board (7) electrically connected with the heat-generating body (5) is arranged in the sinking platform (4), at least two oppositely arranged hooks (44) are arranged on the side wall of the sinking platform (4), and the hooks (44) are used for buckling two ends of the control circuit board (7) so as to fix the control circuit board (7) on the sinking platform (4).

7. The heating lunch box of claim 1, wherein: the heating lunch box further comprises a connecting belt (8), wherein buckling holes (81) are respectively formed in two ends of the connecting belt (8), outwards protruding buckling lugs (11) are arranged on two opposite side walls of the bottom shell (1), the connecting belt (8) spans the top cover (3), and the two buckling holes (81) are correspondingly buckled into the two buckling lugs (11) so as to tightly press the top cover (3) on the bottom shell (1).

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