Closed container cover

Abstract

A closed container cover includes an upper plate moves down in accordance with rotation of a rotary knob and pushes outward a packing portion provided on a circumference of a lower plate, thereby having advantages that an inside of a container main body is easily closed by a simple operation, and production processes are decreased with the minimum elements to increase efficiencies of the production and the processes and significantly reduce production costs and lowering a selling price.

Claims

1. A closed container cover (100), which is coupled to an upper portion of a quadrangular container main body (200) and closes an inside of the container main body (200), the closed container cover (100) comprising: an upper plate (110) configured to comprise a coupling hole (111) formed in a center portion thereof, and a stepped portion (112) formed on an inner surface of the coupling hole (111); a rotary knob (120) configured to be inserted in the coupling hole (111), and comprising a wing (121) formed on an upper outer surface thereof and seated on the stepped portion (112), and a screw thread (122) formed an a lower outer surface; a lower plate (130) configured to couple with the upper plate (110), and comprising a top coupling groove (131) formed in a center portion thereof and screw-coupling with the rotary knob (120), and an insertion groove (132) formed on an outer surface thereof; and a packing portion (140) configured to be made of an elastic material and inserted in the insertion groove (132), and comprising a circumferential surface tapering outward, wherein the upper plate (110) moves down so that an outer surface of the upper plate (110) can press an inner surface of the packing portion (140) and an outer surface of the packing portion (140) can be in contract with an inner surface of the container main body (100) if the rotary knob (120) is rotated in a state that the lower plate (130) is seated on an inner receiving projection (210) of the container main body (200); the packing portion (140) comprises a contact surface (141) formed on an outer circumference thereof and having the same angle as the inner surface of the container main body (200) so as to be in close contact with the inner surface of the container main body (200) when the packing portion (140) is expanded outward as the upper plate (110) moves down; and the upper plate (110) comprises an inclined surface (113) formed on an outer circumference thereof at the same angle as the inner surface of the packing portion (140).

2. The combination of the cover and the container according to claim 1, wherein the upper plate (110) comprises a reinforcing rib (114) formed at a bottom corner thereof and arranged in a diagonal direction to transfer pressure to corners of the packing portion while the upper plate (110) is moved down by rotation of the rotary knob (120).

3. The combination of the cover and the container according to claim 2, wherein the upper plate (110) comprises an outer rib (115) formed on a bottom circumference thereof and preventing the upper plate (110) from rotating in the same direction as the rotary knob (120) while the upper plate (110) is moved down by the rotation of the rotary knob (120).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The above and/or the aspects will become apparent and more readily appreciated from the following description of exemplary embodiments, taken in conjunction with the accompanying drawings, in which:

(2) FIG. 1 is a perspective view of a closed container and a closed container cover, which are coupled, according to an embodiment of the present disclosure;

(3) FIG. 2 is an exploded perspective view of a closed container and a closed container cover, which are separated, according to an embodiment of the present disclosure;

(4) FIG. 3 is a cross-sectional view of a closed container and a closed container cover according to an embodiment of the present disclosure;

(5) FIG. 4 is a cross-sectional view of a closed container cover, in which an upper plate is moved down by rotation of the rotary knob, according to an embodiment of the present disclosure; and

(6) FIG. 5 is a plan view of a closed container and a closed container cover according to an embodiment of the present disclosure.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

(7) Below, a closed container cover 100 according to an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings. First, it will be appreciated that like numerals refer to like elements or components. Further, detailed descriptions about well-known functions and features, which may cloud the gist of the present disclosure, will be avoided.

(8) Referring to FIG. 1 or FIG. 2, a closed container cover 100 according to one embodiment of the present disclosure broadly includes an upper plate 110, a rotary knob 120, a lower plate 130 and a packing portion 140.

(9) First, the upper plate 110 will be described. As shown in FIG. 2, 3 or FIG. 4, the upper plate 110 is shaped like a quadrangle and moves up and down in accordance with rotation of the rotary knob 120 to be described later, thereby pushing the packing portion 140 (to be described later) provided on an outer surface of the lower plate 130 (to be described later) in an outward direction or returning the packing portion 140 to an original state. The upper plate 110 includes a coupling hole 111, a stepped portion 112, an inclined surface 113, a reinforcing rib 114 and an outer rib 115.

(10) The coupling hole 111 is formed by perforating a center portion of the upper plate 110, and allows the rotary knob 120 to be rotated in a state that the rotary knob 120 is inserted therein and coupled to the upper plate 110.

(11) The stepped portion 112 protrudes inward from an inner circumference of the coupling hole 111, and holds a wing 121 (to be described later) of the rotary knob 120 inserted in the coupling hole 111, thereby preventing the rotary knob 120 from being separated from the coupling hole 111.

(12) The inclined surface 113 is formed on an outer circumference of the upper plate 110 and inclined at a predetermined angle. The inclined surface 113 is formed at the same angle as the inner surface of the packing portion 140 (to be described later), thereby guiding the upper plate 110 to press the packing portion 140 and elastically transform the packing portion 140 when the upper plate 110 is moved down by the rotation of the rotary knob 120.

(13) The reinforcing rib 114 is shaped like a horizontal bar formed at each of four bottom corners of the upper plate 110 as shown in FIG. 2 or FIG. 5, and prevents a diagonal portion of the upper plate 110 from being distorted or moved so that the maximum pressure can be transferred to the corners of the packing portion 140, i.e. in a diagonal distance L between the upper plate 110 and the coupling hole 111 longer than a horizontal distance D between the upper plate 110 and the coupling hole 111, when the upper plate 110 is moved down by the rotation of the rotary knob 120.

(14) Thus, if the upper plate 110 is completely moved down, the whole outer circumference of the packing portion 140 is in close contact with the inner circumference of a container main body 200, thereby maximizing airtightness.

(15) The outer rib 115 is shaped like a vertical band formed on a bottom circumference of the upper plate 110, and prevents the upper plate 110 from moving leftward and rightward or in the same direction as the rotary knob 120 while the upper plate 110 is moved down by the rotation of the rotary knob 120, thereby moving the upper plate 110 thoroughly in a vertical direction so that pressure can be uniformly applied to the whole inner circumference of the packing portion 140.

(16) Next, the rotary knob 120 will be described. As shown in FIG. 2 or FIG. 3, the rotary knob 120 is inserted in the coupling hole 111 and rotates to move the upper plate 110 up or down. The rotary knob 120 is formed with the wing 121 on the top outer circumference thereof, so that the rotary knob 120 can be not only rotatably seated on the coupling hole 110 but also prevented from being separated outward from the coupling hole 110 in the state that the rotary knob 120 is inserted in the coupling hole 111.

(17) Further, the rotary knob 120 is formed with a screw thread 122 on the bottom outer circumference thereof, and thus screw-coupled with a tap coupling groove 131 of the lower plate 130 (to be described later) so that the upper plate 110 can be moved up or down in accordance with the rotation of the rotary knob 120.

(18) Next, the lower plate 130 will be described. As shown in FIG. 2 or FIG. 3, the lower plate 130 is coupled to the bottom of the upper plate 110, and seated on an inner receiving projection 210 of the container main body 200. The lower plate 130 includes the tap coupling groove 131, and an insertion groove 132.

(19) The tap coupling groove 131 is formed in a center portion of the lower plate 130. Further, the tap coupling groove 131 is internally formed with a screw tap 132 to be screw-coupled with the screw thread 122.

(20) The insertion groove 132 is recessed on the outer surface of the lower plate 130 so that a horizontal surface 142 of the packing portion 140 can be inserted in and coupled to the insertion groove 132.

(21) In addition, the lower plate 130 may be additionally formed with a reinforcing rib receiving groove (not shown) corresponding to each of the reinforcing ribs 114 and inserting each of the reinforcing ribs 114 therein, thereby improving coupling between the upper plate 110 and the lower plate 130, further preventing the upper plate 110 from being distorted or moved by the rotation of the rotary knob 120, and guiding the upper plate 110 to move vertically.

(22) Further, the lower plate 130 may be formed with a supporter 134 on the outer circumference thereof so as to be supported on the inner receiving projection 210.

(23) Next, the packing portion 140 will be described. As shown in FIG. 2, 3 or 4, the packing portion 140 is made of an elastic material, and coupled to the outer circumference of the lower plate 130. Thus, the packing portion 140 is elastically transformed by pressure of the upper plate 110 so as to be in contact with or separated from the inner surface of the container main body 200. To this end, the packing portion 140 includes the horizontal surface 142 to be inserted in the insertion groove 132, and the outer circumference of the packing portion 140 is extended from the horizontal surface 142 and tapers outward.

(24) Furthermore, a contact surface 141 is formed on the outer circumference of the packing portion 140 and has the same angle as the inner surface of the container main body 200, thereby closely contacting the inner surface of the container main body 200 and improving airtightness when the packing portion 140 is expanded outward as the upper plate 110 moves down.

(25) As described above, according to an embodiment of the present disclosure, the upper plate moves down in accordance with the rotation of the rotary knob and pushes outward the packing portion provided on the circumference of the lower plate, thereby having advantages that the inside of the container main body is easily closed by a simple operation, and production processes are decreased with the minimum elements to increase efficiencies of the production and the processes and significantly reduce production costs and lowering a selling price.

(26) A few exemplary embodiments have been shown and described in the drawings and the specification. Here, specific terms are used for only illustrative purposes, but not construed as limiting the meaning or the scope of the present disclosure defined in the appended claims. Accordingly, it will be appreciated by a person having an ordinary skill in the art that various changes and equivalents may be made in these exemplary embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims.

(27) TABLE-US-00001 <Reference Numerals> 100: closed container cover 110: upper plate 111: coupling hole 112: stepped portion 113: inclined surface 114: reinforcing rib 115: outer rib 120: rotary knob 121: wing 122: screw thread 130: lower plate 131: tap coupling groove 132: insertion groove 133: screw tap 134: supporter 140: packing portion 141: contact surface 142: horizontal surface 200: container main body 210: inner receiving projection D: horizontal distance between upper plate 110 and coupling hole 111 L: diagonal distance between upper plate 110 and coupling hole 111