CN220024360U - Lid and cutlery box of using this lid - Google Patents

Abstract

The utility model discloses a box cover and a lunch box using the box cover, and mainly relates to a lunch box cover. It includes a cover body; the cover body is provided with a ventilation hole; a cover is provided on the top of the ventilation hole on the outside of the lid; there is no sealing between the cover and the ventilation hole, and there is a ventilation gap between the cover and the ventilation hole to communicate with the outside world. . A cover groove is provided above the cover body, the cover is placed in the cover groove, and a liquid storage tank is provided at the edge of the cover groove. An anti-backflow protrusion is provided around the ventilation hole of the cover body. The beneficial effect of the utility model is that it can balance the air pressure inside and outside the box, avoid soup leakage, and is a low-cost lunch box that is convenient for packaging.

Description

A box lid and a lunch box using the lid

Technical field

The utility model relates to the field of a box cover, specifically a box cover and a lunch box using the box cover.

Background technique

If the lid of a packed lunch box containing hot soup is immediately closed, the evaporated heat will increase the air pressure inside the box and easily push up the lid. Therefore, at present, several circles of plastic wrap are wrapped around the lid to seal it. There is no leakage of soup and the lid of the box can be prevented from being lifted up. But in this case, merchants will use a lot of plastic wrap, which is not only costly but also slow in packaging speed. Therefore, there is a need for a low-cost lunch box that can balance the air pressure inside and outside the box, avoid soup leakage, and is convenient for packaging.

Utility model content

The purpose of this utility model is to provide a box lid and a lunch box using the lid, which can balance the air pressure inside and outside the box, prevent soup from leaking, and is a low-cost lunch box that is convenient for packaging.

In order to achieve the above purpose, this utility model is achieved through the following technical solutions:

A box lid includes a lid body; the lid body is provided with a breathable hole; the breathable hole has a small diameter and can leak air, but if the lunch box is not turned upside down, there will be basically no liquid leakage. A cover is provided on the top of the ventilation hole on the outside of the lid. There is no sealing between the cover and the ventilation hole. There is a ventilation slit between the cover and the ventilation hole that communicates with the outside world. The side wall of the cover groove is provided with a ventilation slit that communicates with the ventilation slit. Breathable ears. The box is connected to the outside world through breathable holes, breathable seams, and breathable ears. There is a cover groove above the cover body, and the cover is placed in the cover groove. The outer edge of the cover is closely fixed to the side wall of the cover groove. There are only ventilation channels at the breathable ears to ensure that the cover will not fall off. And there is a liquid storage tank on the edge of the cover groove. The water vapor coming out of the ventilation hole liquefies into small water droplets on the cover. The small water droplets gather into large water droplets and then fall to the liquid storage tank.

A guide groove is provided on the side of the cover close to the ventilation hole. The guide groove is an annular groove corresponding to the liquid storage tank, and a diameter groove connected to both sides is provided in the middle of the annular groove. The water vapor coming out of the ventilation hole flows to the guide groove through the diameter groove, circulates in the guide groove and liquefies into small water droplets on the guide groove. The small water droplets gather into large water droplets and then fall to the liquid storage tank.

An anti-backflow protrusion is provided around the ventilation hole of the cover body; the ventilation hole is located on the anti-backflow protrusion. When the liquefied water droplets in the diameter groove fall, the water droplets will slide along the anti-backflow convex surface to prevent the water droplets from flowing back into the box body.

A lunch box includes a box body; the top edge of the box body is removably and sealably provided with the above-mentioned box lid. The top edge of the box body is provided with an annular protrusion, and the edge of the cover body of the box cover is provided with an edge groove that sealingly cooperates with the annular protrusion.

Compared with the existing technology, the beneficial effects of this utility model are:

The diameter of the ventilation hole is very small, and the diameter can be set to 1~2mm. The ventilation gap connected to the ventilation hole is the height difference gap between the lowest surface of the cover and the top surface of the cover groove. The height difference is about 1mm. The breathable ears are connected to the breathable seams, and the inside of the box is connected to the outside world through the breathable holes, breathable seams, and breathable ears. It can balance the air pressure inside and outside the box. Since the diameter of the breathable holes is very small, with a diameter of 1 to 2 mm, it is breathable on the premise of ensuring It can avoid soup leakage. Moreover, the lid and the box body can be detachably sealed by directly pressing the lid on the box body, and the cover and the lid can be stably fixed by directly pressing the lid on the cover groove, which is convenient for assembly and makes packaging easier. It is convenient, no need to wrap the plastic wrap, and the lid, cover and box body are all injection molded in one piece, so the production cost is low.

Description of the drawings

Figure 1 is an exploded view of the lunch box in the utility model in a top view.

Figure 2 is an exploded view of the lunch box in the utility model when viewed from above.

Figure 3 is an exploded cross-sectional view of the Chinese lunch box of the present invention.

Figure 4 is a cross-sectional view of the box cover and cover of the utility model in a mated state.

Numbers shown in the attached drawings:

1. Cover; 2. Breathing holes; 3. Cover; 4. Breathing seams; 5. Cover groove; 6. Liquid reservoir; 7. Breathing ears; 8. Diversion groove; 9. Diameter groove; 10. Anti-backflow Protrusion; 11, annular protrusion; 12, edge groove; 13, lowest surface; 14, top surface.

Detailed ways

The utility model will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teaching content of the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by the present application.

The utility model relates to a box cover and a lunch box using the box cover.

Box lid:

The main structure of the box cover includes an integral injection-molded lid body 1; a ventilation hole 2 is provided at the center of the lid body 1, the diameter of the ventilation hole 2 is very small, and the diameter can be set at 1 to 2 mm; the diameter of the ventilation hole 2 is small It can leak air, but if the lunch box is not turned upside down, it will basically not leak.

A cover groove 5 is provided on the outside of the lid at the top of the ventilation hole 2, and a cover 3 is provided in the cover groove 5. There is no sealing between the cover 3 and the ventilation hole 2, and there is a ventilation gap between the cover 3 and the ventilation hole 2. The slit 4 is connected to the outside world, and the side wall of the cover groove 5 is provided with air-permeable ears 7 connected to the air-permeable slit 4 . The box is connected to the outside world through ventilation holes 2, ventilation seams 4, and ventilation ears 7. The outer edge of the cover 3 is tightly fixed to the side wall of the cover groove 5, and there is only a ventilation channel at the breathable ears 7 to ensure that the cover 3 will not fall off. And there is a liquid storage tank 6 on the edge of the cover tank 5. The water vapor coming out of the ventilation hole 2 liquefies into small water droplets on the cover 3. The small water droplets gather into large water droplets and then fall to the liquid storage tank 6. The ventilation seam 4 connected to the ventilation hole is the height difference gap between the lowest surface 13 of the cover 3 and the top surface 14 of the cover groove 5. The height difference is about 1 mm. The ventilation ear 7 is connected to the ventilation seam 4, and the box The interior is connected to the outside world through the ventilation holes 2, the ventilation seams 4, and the ventilation ears 7, which can balance the air pressure inside and outside the box. Since the diameter of the ventilation hole 2 is very small, with a diameter of 1 to 2 mm, leakage of soup can be avoided on the premise of ventilation.

The cover 3 is provided with a guide groove 8 on one side close to the ventilation hole 2. The guide groove 8 is an annular groove corresponding to the liquid storage tank 6, and a diameter groove connected on both sides is provided in the middle of the annular groove. 9. The water vapor coming out of the ventilation hole 2 flows to the guide groove 8 through the diameter groove 9, circulates in the guide groove 8 and liquefies into small water droplets on the guide groove 8. The small water droplets gather into large water droplets and then fall to the liquid storage. slot 6.

An anti-backflow protrusion 10 is provided around the ventilation hole 2 of the cover 1; the ventilation hole 2 is located on the anti-backflow protrusion 10. When the liquefied water droplets in the diameter groove 9 fall, the water droplets will slide along the surface of the anti-backflow protrusion 10 to prevent the water droplets from flowing back into the box body.

Lunch box:

The lunch box includes a box body; the top edge of the box body is removably and sealably provided with the above-mentioned box lid. The top edge of the box body is provided with an annular protrusion 11 , and the edge of the lid body 1 of the box cover is provided with an edge groove 12 that seals with the annular protrusion 11 .

The box lid can be detachably sealed with the box body by directly pressing the lid on the box body. The cover 3 can be stably fixed to the box lid by directly pressing the cover 3 on the cover groove 5, which is convenient for assembly. Packaging is more convenient, there is no need to wrap plastic wrap, and the lid, cover 3, and box body are all integrally injection molded, resulting in low production costs.

Claims (8)

1. A box cover comprises a cover body (1); an air hole (2) is formed in the cover body (1);

the method is characterized in that:

the top of the air vent (2) is provided with a cover (3) on the outer side of the box cover, the cover (3) is not sealed with the air vent (2), and the cover (3) is communicated with the air vent (2) through an air vent seam (4) with the outside.

2. A lid as claimed in claim 1, wherein: the cover is characterized in that a cover groove (5) is formed in the upper portion of the cover body (1), the cover (3) is arranged in the cover groove (5), and a liquid storage groove (6) is formed in the edge of the cover groove (5).

3. A lid as claimed in claim 2, wherein: the side wall of the cover groove (5) is provided with a ventilation lug (7).

4. A lid as claimed in claim 2, wherein: one side of the cover (3) close to the air holes (2) is provided with a diversion trench (8).

5. A lid as claimed in claim 4, wherein: the diversion trench (8) is an annular groove corresponding to the liquid storage tank (6), and a radial groove (9) with two communicated sides is arranged in the middle of the annular groove.

6. A lid as claimed in any one of claims 1 to 5 wherein: a backflow preventing bulge (10) is arranged around the ventilation hole (2) of the cover body (1);

the ventilation holes (2) are positioned on the backflow preventing bulges (10).

7. A cutlery box, comprising a box body; the method is characterized in that: the box cover of claim 6 is arranged on the top edge of the box body in a detachable and sealing way.

8. A cutlery box according to claim 7, wherein: the top edge of the box body is provided with an annular bulge (11), and the edge of the cover body (1) of the box cover is provided with an edge groove (12) in sealing fit with the annular bulge (11).