TWM615313U - Unidirectional exhaust valve - Google Patents

Abstract

The one-way exhaust valve of this creation is used to install a coffee bag; it includes: a main seat with a plurality of exhaust holes; a film installed on the main seat and covered above the plurality of exhaust holes, the The film seals the plurality of vent holes so that the gas outside the coffee bag cannot enter the coffee bag; a connecting piece is arranged between the main base and the film to connect a part of the film to the main base , So that the film will not be separated from the main seat, and the part of the film that is not connected to the main seat can be pushed up and lifted by the gas in the coffee bag, so that the gas in the coffee bag can pass from the plurality of exhaust holes discharge.

Description

One-way exhaust valve

This creation is related to the air valve device, especially a one-way exhaust valve installed on a sealed bag or coffee bag.

Press, green coffee beans contain acids, proteins, esters, carbohydrates, water and caffeine. After the green coffee beans are roasted at a high temperature, carbon dioxide and other volatile gases are generated, and they are slowly released from the fiber structure of the beans. If the coffee beans are packed in a closed bag, the coffee bag will expand after a period of time. The surface of the coffee beans accumulated in the bag will react with carbon dioxide to form oxides, which will affect the freshness of the coffee beans and the flavor of the coffee. .

Therefore, most of the current coffee bags are provided with a one-way valve. The one-way valve is different from an ordinary air valve. It must be exhausted while isolating the air outside the packaging bag from entering. The conventional coffee bag check valve includes a base, a gasket, and a baffle. The base is provided with a plurality of vent holes, and a gasket cover is arranged above the vent holes of the base. The baffle It is arranged in the base and above the gasket to prevent the gasket from being separated from the base, but cannot prevent the gasket from being lifted so that the gas can be discharged; therefore, the structure of the base and the baffle is more complicated. It is also troublesome and inconvenient to assemble.

The purpose of this creation is to provide a one-way exhaust valve, which has a simplified structure, is convenient to assemble, and can reduce assembly man-hours and manufacturing costs.

In order to achieve the above-mentioned purpose and effects, this creation discloses a one-way exhaust valve for setting in a coffee bag; it includes: a main seat with a plurality of exhaust holes; a film installed on the main seat and covered Above the plurality of vent holes, the film closes the plurality of vent holes, so that the gas outside the coffee bag cannot enter the coffee bag; a connecting piece is arranged between the main seat and the film to make The part of the film is connected to the main seat so that the film will not be separated from the main seat, and the part of the film that is not connected to the main seat can be pushed up by the gas in the coffee bag and lifted up, so that the film is in the coffee bag The gas can be discharged from the plurality of exhaust holes.

In one embodiment, the main seat has a bottom and an annular wall connected to the periphery of the bottom, the bottom and the annular wall enclose an operating space; a connecting recess is provided in the center of the bottom, The plurality of vent holes are arranged at the bottom and are arranged around the outer periphery of the connecting recess. The recess, the plurality of vent holes and the film are located in the operating space, and the recess is used for the connecting member to be installed.

In one embodiment, the connecting member is an adhesive, which is coated to fill the connecting recess.

In one embodiment, the actuation space is a circular space, the film is a circular piece made of soft plastic material, and the outer diameter of the film is slightly smaller than the inner diameter of the actuation space.

In an embodiment, the top edge of the ring wall portion of the main seat extends outwards to be combined with the bag body of the coffee bag.

In accordance with the purpose and effect of this creation, the following is a detailed description of the preferred embodiments with the drawings.

Please refer to FIGS. 1 to 5. This creation discloses a one-way exhaust valve 10 for setting in a coffee bag 20; it includes a main seat 11, a film 12, and a connecting member 13.

As shown in Figures 1 and 2, the main seat 11 has a bottom 111 and an annular wall 112 connected to the bottom 111. A top edge 113 extends outward from the top of the annular wall 112. The surface of the bottom 111 is smooth. And it encloses an operating space 114 with the ring wall 112; in this embodiment, the operating space 114 is a circular space, and the top edge 113 is used to combine with the bag body of the coffee bag 20 (please refer to As shown in Figure 3); the main seat 11 is provided with a connecting recess 115 in the center of the bottom 111, and a plurality of exhaust holes 116 are provided in the bottom 111, and the plurality of exhaust holes 116 penetrate the main seat 11 The bottom 111 is arranged around the outer periphery of the connecting recess 115, the connecting recess 115 and the plurality of exhaust holes 116 are located in the operating space 114, and the connecting recess 115 is used for the connecting member 13 to be arranged.

The film 12 is made of soft plastic material and has a smooth surface. In this embodiment, the film 12 is formed as a circular film corresponding to the operating space 114. As shown in Figure 4, the outer diameter of the film 12 is slightly smaller than the The inner diameter of the operating space 114, the film 12 is installed on the bottom 111 of the main seat 11 and is located in the operating space 114, and the film 12 is covered above the plurality of exhaust holes 116, which can close the plurality of exhaust holes Hole 116. At this time, the gas outside the coffee bag 20 (indicated by "⇧" on the drawing) cannot enter the coffee bag 20 from the plurality of exhaust holes 116.

The connecting member 13 is arranged between the main base 11 and the film 12 to connect a part of the film 12 with the main base 11 so that the film 12 does not depart from the main base 11; in this embodiment, the The connecting member 13 is a glue that is coated to fill the connecting recess 115. When the connecting member 13 connects the main base 11 and the film 12, it will not affect the air tightness of the film 12 to close the plurality of vents 116 In this state, it is ensured that the gas outside the coffee bag 20 (indicated by "⇧" on the drawing) cannot enter the coffee bag 20 through the plurality of exhaust holes 116.

Please refer to FIG. 5 in conjunction. The connecting recess 115 is located in the center of the bottom 111 of the main base 11, and the connecting member 13 is located in the connecting recess 115. Therefore, the film 12 is connected to the main base at its center. 11 is connected, the part other than the center of the film 12 is not connected to the main seat 11; then, when the pressure of the carbon dioxide gas (indicated by "↗" on the drawing) accumulated in the coffee bag 20 increases to a predetermined value, The part outside the center of the film 12 that is not connected to the main seat 11 will be pushed upward by the gas in the coffee bag 20 and lifted up. At this time, the plurality of vent holes 116 communicate with the outside, and the parts in the coffee bag 20 Gas (indicated by "↗" on the figure) can be discharged from the plurality of exhaust holes 116, and when the gas in the coffee bag 20 is discharged, the pressure of the gas in the coffee bag 20 becomes smaller, the film 12 due to its own elastic restoring force, the part that has been lifted up will be covered back above the plurality of exhaust holes 116, and the plurality of exhaust holes 116 will be closed again, so that the gas outside the coffee bag 20 cannot enter the The coffee bag 20, in this way, forms a one-way air valve structure that only exits but does not enter.

The one-way exhaust valve 10 is created by using the film 12 and the surface of the film 12 is smooth, and the surface of the bottom 111 of the main seat 11 is smooth. When the film 12 is covered with the main seat 11, the plurality of The vent 116 prevents the gas outside the coffee bag 20 from entering the coffee bag 20, and through the connecting member 13, only the center of the film 12 is connected to the main base 11, and the film 12 is not connected to the main base 11. The part where the seat 11 is connected can be pushed up by the carbon dioxide gas accumulated in the coffee bag 20 to a predetermined pressure value and lifted up, and the carbon dioxide gas in the coffee bag 20 can be discharged from the plurality of exhaust holes 116 to achieve a The effect of expelling the excess air in the coffee bag 20 to the outside of the coffee bag 20 and isolating the air outside the coffee bag 20 from entering the coffee bag 20. Using the coffee bag with the one-way exhaust valve 10 of this creation can ensure that the coffee beans in the bag will not be damp and change the flavor, and the components of the one-way exhaust valve 10 of this creation are simple in structure and easy to assemble, which is really an innovative creation. It can reduce assembly man-hours and manufacturing costs, improve industrial utilization and increase product competitiveness.

The above are the preferred embodiments and design drawings of this creation, but the preferred embodiments and design drawings are only examples and are not used to limit the scope of rights of this creation technique. Any equivalent technical means or the following The implementation of the scope of rights covered by the content of the "Scope of Patent Application" does not deviate from the scope of this creation but is the scope of the applicant's rights.

10: One-way exhaust valve 11: Main seat 111: bottom 112: Ring Wall Department 113: Top Edge 114: Action Space 115: connection recess 116: Vent 12: Film 13: Attachment 20: coffee bag

Figure 1 is a schematic diagram of the appearance of the three-dimensional combination of the one-way exhaust valve of this creation. Figure 2 is a three-dimensional exploded view of the one-way exhaust valve of this creation. Figure 3 is a three-dimensional view of the one-way exhaust valve of this creation installed in the coffee bag. Figure 4 is a schematic cross-sectional view of Figure 3 in the direction 4-4. Figure 5 is a schematic diagram showing the action of the one-way exhaust valve of this creation when exhausting.

10: One-way exhaust valve

11: Main seat

111: bottom

112: Ring Wall Department

113: Top Edge

114: Action Space

115: connection recess

116: Vent

12: Film

13: Attachment

Claims (5)

A one-way exhaust valve is used to be installed in a coffee bag; it includes: One main seat with multiple exhaust holes; A film is installed on the main seat and covered above the plurality of vent holes, and the film closes the plurality of vent holes so that the gas outside the coffee bag cannot enter the coffee bag; A connecting piece is arranged between the main base and the film to connect a part of the film to the main base so that the film will not be separated from the main base, and the part of the film that is not connected to the main base can be The gas in the coffee bag is pushed upward and lifted up, so that the gas in the coffee bag can be discharged from the plurality of exhaust holes. The one-way exhaust valve according to claim 1, wherein the main seat has a bottom and an annular wall connected to the bottom, and the bottom and the annular wall enclose an operating space; The center is provided with a connecting recess, the plurality of exhaust holes are provided at the bottom and surrounding the outer periphery of the connecting recess, the connecting recess, the plurality of exhaust holes and the film are located in the operating space, and the connecting recess is used for For the connection set. The one-way exhaust valve according to claim 2, wherein the connecting member is a glue that is coated to fill the connecting recess. The one-way exhaust valve according to claim 2, wherein the operating space is a circular space, the film is a round piece made of soft plastic material, and the outer diameter of the film is slightly smaller than the operating space The inner diameter. The one-way exhaust valve according to claim 2, wherein the top of the ring wall portion of the main seat extends outward with a top edge to be combined with the bag body of the coffee bag.

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