Sealing ring, production process thereof and preservation box cover with sealing ring
A technology for sealing rings and fresh-keeping boxes, which is applied in the direction of sealing, detachable lids/covers, impact-sensitive items, etc., and can solve the problems of laborious and easy opening of the lids
Pending Publication Date: 2022-04-08
YANGJIANG EKA IND LTD
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the problem that the sealing ring used for the crisper in the prior art is sealed when the lid of the crisper is tight, and after the crisper expands with heat and contracts with cold, it is still very laborious to open the lid when the buckle is opened, and provides A sealing ring that cooperates with the lid to ensure airtightness and seal when the lid is closed, and balance the air pressure inside and outside the crisper after the buckle is opened, thereby making the lid easy to open
Method used
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Embodiment
[0052] Such as Figure 1 to Figure 5 Shown is an embodiment of a sealing ring of the present invention, including a sealing strip 1 and a gas-permeable member 2. The sealing strip 1 is an open ring structure. Preferably, the cross section of the sealing strip 1 is rectangular, circular or elliptical. Of course, It can also be other shapes; the air-permeable part 2 is located at the annular opening of the sealing strip 1, and the two ends of the air-permeable part 2 are respectively connected with the two ends of the sealing strip 1, and the air-permeable part 2 and the sealing strip 1 can be bonded or Blind holes are provided at both ends of the venting part 2 or both ends of the sealing strip 1, and the two ends of the sealing strip 1 and the two ends of the venting part 2 are inserted respectively, and the two are interference fit, which can improve the connection reliability on the one hand On the other hand, the airtightness can be improved; the air-permeable part 2 is pro...
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The invention relates to the technical field of fresh-keeping box accessories, in particular to a sealing ring, a production process of the sealing ring and a fresh-keeping box cover with the sealing ring. The sealing ring comprises a sealing strip and a ventilation piece, the sealing strip is of an open annular structure, the ventilation piece is arranged at an annular opening of the sealing strip, the two ends of the ventilation piece are connected with the two ends of the sealing strip respectively, and the ventilation piece is provided with ventilation holes enabling the inner side and the outer side of the sealing ring to form an airflow channel. The sealing ring disclosed by the invention can realize sealing or ventilation in different use environments, and integrates two contradictory functions; the air holes are formed in the sealing ring, so that the sealing effect of a common sealing ring is achieved when the air holes are blocked, and the ventilation effect is achieved when the air holes are unblocked.
Description
technical field [0001] The invention relates to the technical field of fresh-keeping box accessories, and more specifically, to a sealing ring, its production process and a fresh-keeping box cover with the sealing ring. Background technique [0002] In the process of using the crisper to store food, especially after putting hot food into the crisper or putting the crisper in the refrigerator, due to thermal expansion and contraction, the air pressure inside the crisper will be lower than the external pressure of the crisper. When opening the lid, it is necessary to overcome the resistance caused by the pressure difference, which makes it very laborious to open the crisper and the user experience is not good. This phenomenon can be attributed to the sealing ring in the crisper. The sealing ring realizes the sealing effect and plays a fresh-keeping effect. At the same time, it is easy to open the fresh-keeping box due to the good airtightness and the difference in internal and...
Claims
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IPC IPC(8): B65D53/02B65D81/18B65D43/08B65D55/02B29C48/03B29C48/00
Inventor 苏庚尹杰吴浩杰
Owner YANGJIANG EKA IND LTD