Fresh-keeping cover

Abstract

The utility model discloses a fresh-keeping cover which comprises a cover body, an annular groove formed in the periphery of the inner side face of the cover body, and an annular pad which covers the top of the annular groove in a sealing mode and completely covers the annular groove, and an annular cavity is formed between the annular groove and the annular pad in a sealing mode. The cover body is provided with an air injection port which is communicated with the annular cavity and used for injecting air into the annular cavity, and the air injection port is provided with a one-way air inlet valve. When the fresh-keeping cover is used, equipment such as an air pump is used for injecting air into the air injection port, so that the annular pad is expanded outwards, and when the fresh-keeping cover covers the fresh-keeping box, sealing is formed by abutting the annular pad against the periphery of the fresh-keeping box. Or the fresh-keeping cover is covered on the fresh-keeping box, and then equipment such as an air pump is used for injecting air into the air injection port, so that the annular pad expands outwards and abuts against the periphery of the fresh-keeping box to form sealing. In the application, the annular gasket hermetically covers the periphery of the annular groove, so that stains can be prevented from entering the annular groove to cause pollution, and meanwhile, a better sealing effect can also be formed.

Description

Technical Field

[0001] The utility model relates to the field of fresh-keeping boxes, and more specifically, to a fresh-keeping cover. Background Art

[0002] In order to better preserve food and meals, fresh-keeping boxes are often used in life. To seal the fresh-keeping box, there is an elastic gasket inside the concave edge of the fresh-keeping box cover, which is buckled to seal the fresh-keeping box. After long-term use, stains are easy to enter the groove, making the elastic gasket easy to get dirty and unhygienic. At the same time, the elastic gasket is prone to aging and shrinking after long-term use, resulting in a decrease in sealing performance. Utility Model Content

[0003] The utility model aims at solving the above-mentioned defects of the prior art and provides a fresh-keeping cover.

[0004] The technical solution adopted by the utility model to solve the technical problem is: constructing a fresh-keeping cover, which includes a cover body, an annular groove arranged on the periphery of the inner side surface of the cover body, and an annular pad with a sealing cover arranged on the top of the annular groove and completely covering the annular groove, an annular cavity is formed by sealing between the annular groove and the annular pad, the cover body is provided with an injection port which is connected with the annular cavity and is used for injecting gas into the annular cavity, and a one-way air inlet valve is provided on the injection port.

[0005] In the fresh-keeping cover described in the utility model, a first annular connecting strip is provided on the first side of the annular pad, a second annular connecting strip is provided on the second side of the annular pad, a first annular mounting groove is provided on the first side wall of the annular groove for sealingly embedding and connecting the first annular connecting strip, and a second annular mounting groove is provided on the second side wall of the annular groove for sealingly embedding and connecting the second annular connecting strip.

[0006] In the fresh-keeping cover of the utility model, the first annular connecting strip is interference-fitted with the first annular mounting groove, and the second annular connecting strip is interference-fitted with the second annular mounting groove.

[0007] In the fresh-keeping cover of the utility model, the first annular connecting strip and the second annular connecting strip are both inverted trapezoidal annular connecting strips, and the first annular mounting groove and the second annular mounting groove are both trapezoidal annular mounting grooves.

[0008] In the fresh-keeping cover of the utility model, the annular pad comprises a silicone layer and an anti-stick coating coated on the outer side of the silicone layer.

[0009] In the fresh-keeping cover described in the utility model, the fresh-keeping cover also includes a vacuum pressure cover which is detachably covered outside the gas injection port.

[0010] The implementation of the fresh-keeping cover of the utility model has the following beneficial effects: when using the fresh-keeping cover of the utility model, use an air pump or other equipment to inject air into the air injection port, so that the annular pad bulges outwards, and when the fresh-keeping cover is placed on the fresh-keeping box, the annular pad is pressed against the periphery of the fresh-keeping box to form a seal. Or first place the fresh-keeping cover on the fresh-keeping box, and then use an air pump or other equipment to inject air into the air injection port, so that the annular pad bulges outwards and presses against the periphery of the fresh-keeping box to form a seal. In the present application, by providing an annular pad on the sealing cover around the annular groove, stains can be prevented from entering the annular groove to cause pollution, and a better sealing effect can also be formed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0012] Figure 1 It is a structural schematic diagram of the utility model fresh-keeping cover;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the fresh-keeping cover of the utility model;

[0014] Figure 3 It is an enlarged schematic diagram of point A in the cross-sectional view of the fresh-keeping cover of the utility model. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0016] like Figure 1 , 2 As shown in Figure 3, in the first embodiment of the fresh-keeping cover of the utility model, the fresh-keeping cover 100 includes a cover body 10, an annular groove 11 arranged on the inner side periphery of the cover body 10, and an annular gasket 12 with a sealing cover arranged on the top of the annular groove 11 and completely covering the annular groove 11, and an annular cavity 13 is formed by sealing between the annular groove 11 and the annular gasket 12. The cover body 10 is provided with an injection port 14 which is connected with the annular cavity 13 and is used for injecting gas into the annular cavity 13, and a one-way air inlet valve 15 is provided on the injection port 14.

[0017] When using the fresh-keeping cover of the utility model, an air pump or other equipment is used to inject air into the air injection port 14, so that the annular pad 12 bulges outwards. When the fresh-keeping cover 100 is covered on the fresh-keeping box, the annular pad 12 is pressed against the periphery of the fresh-keeping box to form a seal. Alternatively, the fresh-keeping cover 100 is first covered on the fresh-keeping box, and then an air pump or other equipment is used to inject air into the air injection port 14, so that the annular pad 12 bulges outwards and presses against the periphery of the fresh-keeping box to form a seal. In the present application, by providing an annular pad 12 on the periphery of the annular groove 11 as a sealing cover, stains can be prevented from entering the annular groove 11 to cause pollution, and a better sealing effect can also be formed.

[0018] To facilitate the disassembly and assembly of the annular gasket 12, a first annular connecting strip 16 is provided on the first side of the annular gasket 12, and a second annular connecting strip 17 is provided on the second side of the annular gasket 12. A first annular mounting groove is provided on the first side wall of the annular groove 11 for sealingly embedding and connecting the first annular connecting strip 16, and a second annular mounting groove is provided on the second side wall of the annular groove 11 for sealingly embedding and connecting the second annular connecting strip 17.

[0019] Preferably, the first annular connecting strip 16 is interference fit with the first annular mounting groove, and the second annular connecting strip 17 is interference fit with the second annular mounting groove.

[0020] In order to achieve a better sealing effect, the first annular connecting strip 16 and the second annular connecting strip 17 are both inverted trapezoidal annular connecting strips, and the first annular mounting groove and the second annular mounting groove are both trapezoidal annular mounting grooves.

[0021] After the first annular connecting strip 16 and the second annular connecting strip 17 are inserted into the first annular mounting groove and the second annular mounting groove, the inverted trapezoidal annular connecting strip can hook the trapezoidal annular mounting groove to prevent the annular connecting strip from falling out of the annular mounting groove.

[0022] Preferably, the annular pad 12 includes a silicone layer 18 and an anti-stick coating 19 coated on the outer side of the silicone layer 18 .

[0023] Furthermore, in order to prevent air leakage or damage to the air injection port 14 , the fresh-keeping cover 100 further includes a vacuum pressure cover 20 which is detachably arranged outside the air injection port 14 .

[0024] In addition, in the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "stacked" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fresh-keeping cover, characterized in that: The fresh-keeping cover includes a cover body, an annular groove arranged on the periphery of the inner side surface of the cover body, and a sealing cover arranged on the top of the annular groove and a ring-shaped pad that completely covers the annular groove. An annular cavity is sealed between the annular groove and the annular pad. The cover body is provided with an injection port that is connected to the annular cavity and is used to inject gas into the annular cavity. A one-way air inlet valve is provided on the injection port.

2. The fresh-keeping cover according to claim 1, characterized in that: A first annular connecting strip is provided on the first side of the annular gasket, a second annular connecting strip is provided on the second side of the annular gasket, a first annular mounting groove is provided on the first side wall of the annular groove for sealingly embedding and connecting the first annular connecting strip, and a second annular mounting groove is provided on the second side wall of the annular groove for sealingly embedding and connecting the second annular connecting strip.

3. The fresh-keeping cover according to claim 2, characterized in that: The first annular connecting strip is interference-fitted with the first annular mounting groove, and the second annular connecting strip is interference-fitted with the second annular mounting groove.

4. The fresh-keeping cover according to claim 2, characterized in that: The first annular connecting strip and the second annular connecting strip are both inverted trapezoidal annular connecting strips, and the first annular mounting groove and the second annular mounting groove are both trapezoidal annular mounting grooves.

5. The fresh-keeping cover according to claim 1, characterized in that: The annular pad comprises a silicone layer and an anti-stick coating coated on the outer side of the silicone layer.

6. The fresh-keeping cover according to claim 1, characterized in that: The fresh-keeping cover also includes a vacuum pressure cover which is detachably arranged outside the gas injection port.

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