Preservation box

Abstract

The preservation box comprises a box body and a box cover, an opening of the box body faces upwards, a connecting ring is arranged at the top of the box body, an abutting ring is arranged at the bottom of the connecting ring, an inner groove is formed in the upper surface of the abutting ring in an inward concave mode, and a side ring extending downwards is formed on the edge of the box cover. The inner wall of the side ring is in threaded connection with the outer wall of the abutting ring, the top face of the abutting ring abuts against the inner side wall of the box cover, and the bottom of the side ring is inserted into the inner groove. According to the preservation box disclosed by the utility model, the sealing performance between the box body and the box cover can be ensured without using an additional sealing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh-keeping boxes, in particular to a fresh-keeping box. Background Art

[0002] Fresh-keeping boxes are widely used as sealed containers in production and daily life. Most existing fresh-keeping boxes consist of a lid and a box body. The box body's side flanges snap together with the lid and secure it with a sealing ring to achieve a seal. However, these boxes suffer from insecure snap-fitting and poor sealing, and the sealing ring only provides a single-layer seal, making it difficult for the box to maintain an ideal seal over long-term use. Utility Model Content

[0003] The utility model aims to solve the above-mentioned technical deficiencies and is designed to provide a fresh-keeping box, which can ensure the sealing between the box body and the box cover without using an additional sealing ring.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a fresh-keeping box, comprising a box body and a box lid, the box body opening facing upward, a connecting ring provided on the top of the box body, a contact ring provided on the bottom of the connecting ring, an inner groove formed inwardly on the upper surface of the contact ring, a downwardly extending side ring formed on the edge of the box lid, the inner wall of the side ring is threadedly connected to the outer wall of the contact ring, the top surface of the contact ring is tightly pressed against the inner side wall of the box lid, and the bottom of the side ring is inserted into the inner groove.

[0005] Preferably, a matching ring is provided on the inner wall of the edge of the box cover, and a sealing groove for the abutting ring to be inserted is formed between the side ring and the matching ring.

[0006] Preferably, the outer edge of the abutting ring is integrally formed with a flanging structure, and the upper surface of the flanging structure is an outer conical surface.

[0007] Preferably, the outer wall of the bottom of the box body is concavely formed with a plurality of concave parts distributed in a ring array.

[0008] Preferably, the box body is made of a transparent material, and the outer wall of the box body is provided with scale markings distributed along its height direction.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] The utility model provides a fresh-keeping box, in which a box lid is sealed on the opening of a box body by a threaded connection between a side ring and an abutting ring, the top surface of the abutting ring is pressed against the inner side wall of the box lid, and the bottom of the side ring is inserted into the inner groove to increase the contact area between the two, so that a labyrinth-type sealing effect is formed between the side ring and the abutting ring, and the sealing between the box body and the box lid can be ensured without using an additional sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 2 is a structural diagram of the fresh-keeping box in the embodiment;

[0012] Figure 2 is a cross-sectional view of the fresh-keeping box in the embodiment;

[0013] Figure 3 2. It is a structural diagram of the box cover in the embodiment;

[0014] Figure 4 It is a cross-sectional view of the stacked boxes in the embodiment.

[0015] In the figure: 1. Box body; 101. Connecting ring; 102. Abutting ring; 103. Inner groove; 2. Box cover; 201. Side ring; 202. Matching ring; 203. Sealing groove; 3. Flanged structure; 4. Inner recess; 5. Scale mark. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the following embodiments and accompanying drawings.

[0017] refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 A food storage box includes a box body 1 and a lid 2. The box body 1 is open upward and made of a transparent material. The outer wall of the box body 1 is provided with scale markings 5 ​​distributed along its height. A connecting ring 101 is provided at the top of the box body 1. An abutting ring 102 is provided at the bottom of the connecting ring 101. The abutting ring 102 extends outward. The upper surface of the abutting ring 102 is concavely formed with an inner groove 103. The outer edge of the abutting ring 102 is integrally formed with a flange structure 3. The upper surface of the flange structure 3 is an outer conical surface. The flange mechanism provides a convenient grip for the user, preventing the user from directly contacting the outer wall of the box body 1.

[0018] The edge of the box cover 2 is formed with a side ring 201 extending downward, and the inner wall of the side ring 201 is threadedly connected to the outer wall of the abutment ring 102. The box cover 2 is sealed on the opening of the box body 1 through the threaded connection between the side ring 201 and the abutment ring 102. The top surface of the abutment ring 102 is pressed against the inner side wall of the box cover 2, and the bottom of the side ring 201 is inserted into the inner groove 103 to increase the contact area between the two, so that a labyrinth sealing effect is formed between the side ring 201 and the abutment ring 102. The sealing between the box body 1 and the box cover 2 can be ensured without using an additional sealing ring.

[0019] Preferably, a matching ring 202 is provided on the inner wall of the edge of the box cover 2, and a sealing groove 203 for the abutting ring 102 to be inserted is formed between the side ring 201 and the matching ring 202, and the sealing groove 203 cooperates with the connecting ring 101 to form a sealing connection.

[0020] Preferably, the bottom outer wall of the box body 1 is concavely formed with a plurality of recessed portions 4 distributed in a circular array, which is convenient for stacking multiple box bodies 1 in position, and the setting of each recessed portion 4 allows friction between the two stacked box bodies 1 to be reduced, making it convenient for the user to take out the required box body 1 from the stacked box bodies 1.

[0021] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementation methods. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the present invention.

Claims

1. A fresh-keeping box, characterized in that: The invention comprises a box body (1) and a box cover (2), wherein the box body (1) is opened upward, a connecting ring (101) is provided on the top of the box body (1), an abutting ring (102) is provided on the bottom of the connecting ring (101), a side ring (201) extending downward is formed on the edge of the box cover (2), an inner groove (103) is formed inwardly on the upper surface of the abutting ring (102), the inner wall of the side ring (201) is threadedly connected to the outer wall of the abutting ring (102), the top surface of the abutting ring (102) is pressed against the inner side wall of the box cover (2), and the bottom of the side ring (201) is inserted into the inner groove (103).

2. A fresh-keeping box according to claim 1, characterized in that: A matching ring (202) is provided on the inner wall of the edge of the box cover (2), and a sealing groove (203) for the abutting ring (102) to be inserted is formed between the side ring (201) and the matching ring (202).

3. A fresh-keeping box according to claim 1, characterized in that: The outer edge of the abutting ring (102) is integrally formed with a flanging structure (3), and the upper surface of the flanging structure (3) is an outer conical surface.

4. A fresh-keeping box according to claim 1, characterized in that: The outer wall of the bottom of the box body (1) is concavely formed with a plurality of concave portions (4) distributed in a ring array.

5. A fresh-keeping box according to claim 1, characterized in that: The box body (1) is made of a transparent material, and the outer wall of the box body (1) is provided with scale markings (5) distributed along its height direction.

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