WO2009033313A1

WO2009033313A1 - Air release valve

Info

Publication number: WO2009033313A1
Application number: PCT/CN2007/002685
Authority: WO
Inventors: Hsin-Yu Chen
Original assignee: Chen Xinyu
Priority date: 2007-09-11
Filing date: 2007-09-11
Publication date: 2009-03-19
Also published as: CN101553676A

Abstract

An air release valve (100) inserted in an aperture of a lid body includes an umbrella film sheet (110), a gripping portion (120) protruded on the top of the umbrella film sheet (110), a column body (130) situated under the umbrella film sheet (110) and at least two venting grooves (150). A restricting portion (133) is protruded outwardly and formed in the middle portion of the column body (130). The restricting portion (133) divides the column body (130) into a first engaging portion (131) and a second engaging portion (132). Multiple blocking pieces (140) are protruded outwardly and formed at the end of the column body (130). Each venting groove (150) is formed by connecting a first venting groove (151) provided on the surface of the column body (130) and between the blocking pieces (140) with a second venting groove (152) situated on the bottom face (111) of the umbrella film sheet (110).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bleed valve, and more particularly to a vent valve structure design which is simple in structure and can be applied to a sealing cap having a vacuuming function. Background Art A general vacuum container mainly includes a container with an opening upward and a lid at the top thereof. The cover body comprises a hollow base and a cover attached to the base, and two or more air suction pipes are disposed in the center of the base to communicate with the interior of the container, and the air suction pipes are just enough for the drawbar to be inserted through The drawbars are twitched to evacuate the air inside the container, thereby causing the interior of the container to be in a vacuum state, so that the articles contained in the container are not in contact with the air for prolonging the storage time. When the item in the container is to be taken out, it is only necessary to press the pressure release button on the cover to allow the outside air to enter the container, so that the gas pressure inside and outside the container is balanced, and the cover body can be convenient for the user. Remove to access the contents of the container. It can be seen that the cover of the aforementioned vacuum container must have a considerable size in order to have sufficient space for assembling the suction pipe, the drawbar and the pressure release button. Therefore, the entire vacuum container is rather cumbersome, and so many components are assembled, which not only makes the manufacturing cost high, but also is not suitable for use on a small container. Referring to FIG. 1, for the foregoing reasons, a vent valve 10 has been developed which is mounted on the cover 20 of the container 30 (the same as the general vacuum container, the cover 20 is passed through the sealing gasket 40). The container 30 is isolated from the outside. The top of the cover body 20 is provided with a recess 21 at the top, and a through hole 22 is formed in the center of the recess 21, and a plurality of air holes 23 are formed around the sleeve hole 22. The venting valve 10 is inserted into the sleeve hole 22 from the top to the bottom. The venting valve 10 includes a button 11, a rib 12 located at the bottom of the button 11 and larger than the diameter of the button 11, and the middle portion of the button 11 is expanded outward. The sheet 13, the width of the diaphragm 13 can cover the air holes 23 around the sleeve hole 22. Therefore, when the combination, the deflation valve 10 can forcibly press the rim 12 into the sleeve hole 22 of the cover 20, and the rim 12 is engaged with the bottom wall of the cover 20 to obtain the positioning. In use, the air can be sucked on the recess 21 by the suction cup cover, at which time the diaphragm 13 is sucked upward and the air in the container 30 can be released from the air holes 23. When the inside of the container 30 is under vacuum, the suction cylinder is removed, and the vent valve 10

1 P15304 The diaphragm 13 is pressed against the air holes 23 under the influence of pressure to keep the inside of the container 30 in a vacuum state. If the cover 20 is to be opened to access the article in the container 30, the button 11 is only pressed by hand, and the button 13 is pressed down by the button 11, so that the diaphragm 13 is lifted upward, and the air hole 23 is separated from the air hole 23, and then the air hole 23 is used to make the outside. The air can flow into the container 30 so that the lid 20 can be opened. Although this design can greatly reduce the manufacturing cost of the vacuum container, it can also be applied to small tanks. However, the air holes 23 are exhausted and deflated, so that the design of the air holes 23 around the sleeve hole 22 is important, and it is not only necessary to make the positions of the air holes 23 covered by the diaphragm 13, but also pay attention to the air holes 23. The size of the aperture is sufficient to allow the gas to circulate smoothly. The presence of the small-aperture vent 23 is also liable to contaminate the dirt, which may cause inconvenience in cleaning the vacuum container after use. The manner of deflation of the press also often prevents the user from knowing whether the deflation valve 10 has caused outside air to enter the container 30, whether it is in a non-vacuum state, and whether the cover 20 can be opened. SUMMARY OF THE INVENTION A main object of the present invention is to provide a deflation valve which is applied to a cover of a vacuum container through a gas flow passage on a deflation valve so that the venting holes on the cover body do not need to be provided with the vent holes, and The air device draws air out of the container to create a vacuum inside the container, and allows outside air to flow into the container. Another object of the present invention is to provide a venting valve having an indicating function that the user can easily perceive whether the container has been deflated and whether the lid can be opened. The present invention is a deflation valve applied to a cover body for sealing a container and inserted into a sleeve hole of the cover body, the vent valve comprising: an umbrella-shaped diaphragm; protruding from a center above the umbrella-shaped diaphragm a grip portion located at a center below the umbrella diaphragm, wherein the middle portion of the cylinder is convexly formed to form a limiting portion for distinguishing the surface of the cylinder from being close to the first "" of the umbrella diaphragm And a second engaging portion below the limiting portion; at least two blocking blocks, the blocking blocks are outwardly convexly formed at the tail end of the column; and at least two air flow grooves, each of which passes through the air flow groove The first flow channel disposed on the surface of the cylinder and interposed between the block blocks and the second flow channel located on the bottom surface of the umbrella film are connected. The first flow channel extends from the bottom surface of the umbrella diaphragm to the tail end of the cylinder and penetrates the limiting portion; the second flow channel extends outward from the junction of the first flow channel on the cylinder, and all are located in the umbrella diaphragm Bottom surface. Moreover, in order to further reduce the weight of the bleed valve and reduce waste of raw materials, the inside of the cylinder may further be a hollow body.

2 P15304 Through the above technique, when the venting valve is inserted into the sleeve hole of the cover body through the two engaging portions, the inner edge of the ferrule is located at the first-joint portion, that is, the surface of the cover body adjacent to the sleeve hole is covered by the umbrella The bottom surface of the diaphragm and the limiting portion are clamped to obtain positioning. In use, the air pump can be sucked by the air suction valve, and the umbrella diaphragm will be sucked up and the air in the container can be released from the first flow channel of the air flow groove to the second flow channel. When the vacuum inside the container is removed, the suction tube is removed, and the umbrella diaphragm on the air release valve is pressed against the cover body under pressure to keep the inside of the container in a vacuum state. If the cover body is to be opened, the air release valve is pulled up by the hand only by the hand, so that the inner edge of the sleeve hole is located at the second engagement portion, that is, the surface of the cover body adjacent to the sleeve hole becomes the limit position. The portion and the retaining block are clamped for positioning, so that the outside air can enter the container through the first flow channel of the air flow groove, so that the cover can be opened. The present invention has at least the following advantages: by using the air flow passage of the air release valve as the air flow passage, the air in the container can be extracted without the need of providing air holes around the sleeve hole on the cover body, and the inside of the container can be vacuumed. Allow outside air to flow into the container. The upward pulling action of the grip portion not only allows the outside air to enter the container through the air flow groove, but also the upward movement of the umbrella diaphragm and the cylinder makes it easy for the user to perceive whether the container has been Deflated, whether it is in a non-vacuum state. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a known vacuum container. Figure 2 is a perspective view of the bleed valve of the present invention. Figure 3 is a schematic view of the lower portion of the bleed valve of the present invention. Figure 4 is a schematic cross-sectional view showing the application of the present invention to a vacuum vessel. Figure 5 is a schematic cross-sectional view showing the application of the present invention to vacuum evacuation of a vacuum container. Figure 6 is a schematic cross-sectional view showing the application of the present invention to a vacuum vessel when it is released. DETAILED DESCRIPTION OF THE INVENTION The detailed description and the technical description of the present invention are further described by the embodiments of the present invention, but it should be understood that these embodiments are for illustrative purposes only and are not to be construed as limiting .

3 P 15304 Referring to Figures 2, 3 and 4, there is shown a schematic view of a bleed valve of the present invention, and a cross-sectional view of a vacuum container. The present invention is a deflation valve 100 that is mounted on a lid 300 of a container 200 and that is inserted into a sleeve hole 330 in the lid 300. The vacuum container also includes a recess 310 formed under the periphery of the cover 300 for engaging the top edge of the container 200, and a gasket 320 is disposed in the recess 310. When the lid 300 is placed at the opening of the container 200, the top edge of the container 200 will press the gasket 320 into the CJ slot 310, and the interior space of the container 200 will be isolated from the outside to form a sealed state (as shown in Figure 4). The vent valve 100 structure includes: an umbrella diaphragm 110; a grip portion 120 protruding from a center above the umbrella diaphragm 110; a cylinder 130 located at a center below the umbrella diaphragm 110, and a middle portion of the cylinder 130 The upper convex portion defines a limiting portion 133 for distinguishing the surface of the pillar 130 from the first "" joint portion 131 of the bottom surface 111 of the umbrella diaphragm 110 and the second engaging portion below the limiting portion 133 132; at least two blocking blocks 140 (take three blocking blocks 140 as an example), the blocking blocks 140 are outwardly protruded at the tail end of the cylinder 130; and at least two through air grooves 150, Each of the air flow grooves 150 is formed by connecting a first flow groove 151 disposed on the surface of the column 130 between the block blocks 140 and a second flow groove 152 located on the bottom surface 111 of the umbrella film 110. (Because the three blocking blocks 140 are taken as an example in the figure, there are also three through air flow slots 150 respectively located between the blocking blocks 140). The first flow channel 151 extends from the bottom surface 111 of the umbrella film 110 to the tail end of the column 130 and penetrates the limiting portion 133; the second flow channel 152 extends outward from the junction of the first flow channel 151 on the column 130. The second flow channel 152 is located at the bottom surface 111 of the umbrella film 110 and does not extend to the boundary of the umbrella film 110. When the bottom surface 111 of the umbrella film 110 is in close contact with the surface of the cover 300, it can be completely covered. The sleeve hole 330 is housed to isolate the sleeve hole 330 from the outside. Moreover, in order to further reduce the weight of the deflation valve 100 and reduce waste of raw materials, the inside of the column 130 may further be a hollow body 160. Through the above structure, the combination vent valve 100 can forcibly press the blocking block 140 and the cylinder 130 to fit inside the sleeve hole 330 of the cover 300. And the two engaging portions (the first "engagement portion 131" and the second engagement portion 132) which are distinguished by the limiting portion 133, when the vent valve 100 is inserted into the sleeve hole 330, the inner edge of the sleeve hole 330 will be located The first "joint portion 131", that is, the plate surface of the cover 300 adjacent to the sleeve hole 330 is sandwiched by the bottom surface 111 of the umbrella-shaped diaphragm 110 and the stopper portion 133 to obtain positioning. Referring to FIG. 5, when the inside of the container 200 is to be evacuated, the air bleeder 100 can be used to evacuate the vent valve 100, and the umbrella diaphragm 110 is lifted upward due to suction attraction. The air in the container 200 can flow from the first flow channel 151 of the air flow channel 150 to the second flow cell

4 P 15304 152 is released (the dotted line and the arrow indicate the flow direction of the gas). When the inside of the container 200 is under vacuum, the air pumping cylinder 400 is removed, and the umbrella diaphragm 110 on the air venting valve 100 is pressed against the surface of the cover body 300 under the influence of atmospheric pressure to keep the inside of the container 200 in a vacuum state. The articles contained in the container 200 can be extended for their shelf life. Referring to FIG. 6, if the cover 300 is to be opened to access the article in the container 200, the vent valve 100 is pulled up by the hand 120 only by hand, so that the inner edge of the sleeve hole 330 is located in the second engagement. The portion 132, that is, the plate surface of the cover 300 adjacent to the sleeve hole 330 is changed by the limiting portion 133 and the blocking block 140 to obtain positioning, so that the outside air can pass through the first flow channel 151 of the air flow groove 150. Entering the container 200, the lid 300 can be opened. The invention is characterized in that, by using the air flow passages 150 on the air release valve 100 as the air flow passages, the air around the sleeves 330 of the cover body 300 does not need to be provided with air holes, so that the air in the container 200 can be extracted and the containers can be made. The function of forming a vacuum inside the 200 can also achieve the function of allowing outside air to flow into the container 200. The absence of these air holes also makes the cleaning of the cover 300 more convenient. In addition, the upward pulling action of the grip portion 120 allows the outer air to enter the inside and outside of the container 200 through the first flow channel 151 of the air flow groove 150, and the upward movement of the umbrella film 110 and the cylinder 130 also makes It is easier for the user to perceive whether the container 200 has been deflated, whether it is in a non-vacuum state, and whether the lid 300 has been opened. The above is only the preferred embodiment of the present invention, and the scope of the present invention should not be limited thereto, that is, the simple equivalent changes and modifications made in the scope of the present invention and the description of the invention belong to the present invention. Within the scope of the invention patent.

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Claims

Claim

A venting valve for sealing a cover of a container and inserting a hole in the cover body, wherein the vent valve comprises: an umbrella diaphragm;

a grip portion protruding from a center above the umbrella diaphragm;

a cylinder, which is located at a center below the umbrella diaphragm, and a protrusion is formed on the middle portion of the cylinder to divide the cylinder into a first "" close to the umbrella diaphragm ^ a joint portion and a second engaging portion below the limit portion;

At least two blocking blocks, which are outwardly formed at a rear end of the cylinder; and at least two air flow grooves, each of which is disposed on the surface of the cylinder and interposed therebetween The first flow channel between the block blocks is connected to the second flow channel located at the bottom surface of the umbrella film.

The bleed valve according to claim 1, wherein the inside of the cylinder is further a hollow body.

3. The deflation valve according to claim 1, wherein the first flow channel extends from a bottom surface of the umbrella diaphragm to a rear end of the cylinder and penetrates the limiting portion.

4. The venting valve according to claim 1, wherein the second flow channel extends outward from a junction of the first flow channels on the cylinder, and is entirely located on a bottom surface of the umbrella diaphragm .

6 P15304