TW201731739A - Self-pressure sealing cover causing gas to enter a chamber to increase the air pressure in the chamber and accordingly deforming a sealing unit - Google Patents

Abstract

The self-pressure sealing cover disclosed in the present invention includes a lower base, a support unit, an elastic unit, a gas flow control member, an upper base, a gas guide unit, and a sealing unit. A chamber is provided between the support unit and the lower base. The sealing unit seals the chamber, the elastic unit is arranged on the support unit. The gas flow control member is combined with the elastic unit. The upper base is arranged on the elastic unit. The gas flow control member is arranged in the gas guide unit to control whether the gas enters the chamber. The upper base includes a main housing defining a gas storage space and a pressing member. When the pressing member is pressed to cause the gas storage space to be compressed, the elastic unit is deformed to cause the gas flow control member to move from a closed position to a circulation position; as a result, the gas enters the chamber to increase the air pressure in the chamber, and the sealing unit is pressed to deform outwardly.

Description

Self-pressure seal cap

The present invention relates to a self-pressure sealing cap for sealing the opening of a container.

Between the conventional experimental container and the cover used, it is usually combined with each other by a thread or a snap-fit structure, so that the cover closes the opening of the container. However, the sealing effect of the above-described bonding method is not good, and the operation of sealing and unsealing is difficult to achieve by one hand, which causes inconvenience.

One of the objects of the present invention is to disclose a self-pressure sealing cover which has the advantages of good sealing effect and convenient use.

To achieve the above and other objects, the present invention discloses a self-pressure sealing cover comprising a lower base, a supporting unit, an elastic unit, a gas flow control member, an upper base, a gas guiding unit and a seal. a unit, the lower base includes a bottom wall and an outer wall extending upward from the bottom wall; the support unit is disposed on the outer side wall, and the support unit, the bottom wall and the outer side wall define a chamber together The supporting unit includes a first through hole communicating with the one of the chambers; the elastic unit is disposed on the supporting unit, the elastic unit includes a first ring edge and a second ring edge defining a second through hole The first rim and the second rim protrude from the first through hole; the gas flow control member is coupled to the first rim and the second rim to correspond to the second pass a hole, the gas flow control member includes a gas passage that communicates with the chamber; the upper base is disposed on the elastic unit, the upper base includes a main casing defining a gas storage space and a pressing member having a compression member for compressing the a compression portion of the gas space; the gas guiding unit includes a support arm and an air flow guiding portion, the support arm connecting the upper base and the air flow guiding portion, and the supporting arm and the air guiding portion The air channel has a first channel, and the air channel has a second channel and a third channel. The second channel is disposed between the first channel and the third channel, and the gas flow control device Disposed in the third channel and moved between a closed position and a flow position. When the gas flow control member is in the closed position, the third channel is not in communication with the gas passage, when the gas flows The third passage is in communication with the gas passage when the control member is in the flow position; the sealing unit is coupled to the support unit and the bottom wall and encloses the chamber, and the sealing unit expands outward when compressed; When the pressing member is pressed to compress the air storage space by the compressing portion, the air pressure in the first to third passages rises, and the first rim and the second rim are deformed and the gas flow Stop control is moved by the closed position To the flow position.

The above self-pressure sealing cover, wherein when the gas flow control member is in the closed position, abutting against a wall surface of the third passage, the third passage is not in communication with the gas passage, when the gas flow control member When in the flow position, the wall is separated from the third passage, and the third passage is in communication with the gas passage.

The above self-pressure sealing cover, wherein the aperture of the first passage is gradually reduced from the inlet end along its length, the maximum aperture is five times the minimum aperture, and the minimum aperture of the first passage is greater than the second The aperture of the channel.

The above self-pressure sealing cover, wherein the first through hole of the supporting unit has a reverse tapered shape.

The self-pressure sealing cover described above, wherein the third passage has a tapered cross section, and the gas flow control member has a tapered cross section corresponding to the third passage.

The self-pressure sealing cap described above, wherein the lower base includes a deflation passage that communicates with the chamber.

The above self-pressure sealing cover further includes a drainage channel extending through the supporting unit and the elastic unit and communicating with the first passage, the drainage channel having an aperture smaller than the aperture of the second passage.

According to the above, the self-pressure sealing cover is when the pressing member is pressed, the sealing unit is expanded and deformed to contact the ring wall of the container, so that the container is sealed, so the self-pressure sealing cover is It has the advantages of convenient use, quickness and good sealing effect.

In order to fully understand the objects, features and advantages of the present invention, the present invention will be described in detail by the following specific embodiments and the accompanying drawings.

Referring to FIG. 1, the self-pressure sealing cover 1 of the embodiment of the present invention is used for covering an opening 110 of a container 100. The container 100 includes a ring wall 120 for defining the opening 110.

Please refer to FIG. 2 to FIG. 5 , which are schematic cross-sectional views of the self-pressure sealing cover 1 according to an embodiment of the present invention.

The self-pressure sealing cover 1 includes a lower base 10, a supporting unit 20, an elastic unit 30, a gas flow control member 40, an upper base 50, a gas guiding unit 60 and a sealing unit 70. The base 10 includes a bottom wall 11 and an outer side wall 12 extending upward from the bottom wall 11; the support unit 20 is disposed on the outer side wall 12. The support unit 20, the bottom wall 11 and the outer side wall 12 are The support unit 20 includes a first through hole 21 that communicates with the one of the chambers C. The elastic unit 30 is disposed on the support unit 20, and the elastic unit 30 includes a second through hole. a first ring edge 31 and a second ring edge 32, the first ring edge 31 and the second ring edge 32 projecting in the first through hole 21; the gas flow control member 40 is coupled thereto The first rim 31 and the second rim 32 are combined to correspond to the second through hole, and the gas flow control member 40 includes a gas passage 41 that communicates with the chamber C; the upper pedestal The 50 series is disposed on the elastic unit 30. The upper base 50 includes a main casing 52 defining a gas storage space 51 and a pressing member 53. The pressing member 53 There is a compression portion 531 for compressing the air storage space 51. The gas guiding unit 60 includes a support arm 61 and an air flow guiding portion 62. The support arm 61 connects the upper base 50 and the air flow guide. The guiding portion 62 has a first passage 63 between the supporting arm 61 and the air guiding portion 62. The air guiding portion 62 has a second passage 64 and a third passage 65. The second passage 64 is disposed between the first passage 63 and the third passage 65. The gas flow control member 40 is disposed in the third passage 65 and moves between a closed position and a flow position, as shown in FIG. As shown, when the gas flow control member 40 is in the closed position, the third passage 65 is not in communication with the gas passage 41, as shown in FIG. 5, when the gas flow control member 40 is in the flow position. The third passage 65 communicates with the gas passage 41; the sealing unit 70 is coupled to the support unit 20 and the bottom wall 11 and closes the chamber C, and the sealing unit 70 expands outward when compressed.

When the pressing member 53 is pressed to compress the air storage space 51 by the compressing portion 531, the air pressure in the first to third passages 63, 64, 65 rises, and the first ring edge 31 is The second rim 32 is deformed and the gas flow control member 40 is moved from the closed position to the flow position. The third passage 65 is in communication with the gas passage 41 when the gas flow control member 40 is in the flow position. The gas system enters the chamber C from the air storage space 51 via the first passage, the second passage, the third passage, and the gas passage, so that the air pressure in the chamber C rises, and the sealing unit 70 is caused. The outer shape is deformed to expand and contact against the ring wall 120 of the container 100, thereby achieving the purpose of sealing.

As shown in FIG. 3, when the gas flow control member 40 is in the closed position, it abuts against the wall surface of the third passage 65, so that the third passage 65 does not communicate with the gas passage 41 when the gas flows. When the control member 40 is in the flow position, it leaves the wall surface of the third passage 65, and the third passage 65 communicates with the gas passage 41.

In this embodiment, the aperture of the first passage 63 is gradually reduced from the inlet end along its length, and its maximum aperture is five times the minimum aperture. As shown in FIG. 3, the second passage 64 is coupled to a position adjacent to the first passage 63 having a minimum aperture. According to this, when the gas enters the first passage 63, the gas system flows along the length direction of the first passage 63. Since the diameter of the first passage 63 gradually becomes smaller, the air pressure becomes larger and larger, and the support arm 61 is caused by The elastic unit 30 and the supporting unit 20 are pressed downward by the force and slightly deformed. Moreover, the minimum aperture of the first passage 63 is larger than the aperture of the second passage 64. Therefore, when the air reservoir 51 is compressed by the compression portion 531 to increase the air pressure, the gas system is first accumulated in the air passage. In the first passage 63, the air pressure in the first passage 63 is significantly increased, and then slowly flows into the second passage 64.

Since the support arm 61 presses the elastic unit 30 and the support unit 20 downward, and the air pressure in the second passage 64 rises, the gas flow control member 40 is forced to move away from the gas guiding unit 60. The direction moves to the circulation position.

The first through hole 21 of the supporting unit 20 has a reverse tapered shape. For example, the first through hole 21 has a funnel shape, whereby the thin portion of the supporting unit 20 is pressed. Deformation occurs.

In this embodiment, the third passage 65 has a tapered cross section, and the gas flow control member 40 has a tapered cross section corresponding to the third passage 65. Wherein, when the gas flow control member is in the closed position, the gas flow control member 40 is received in the third passage 65 and abuts against the wall surface of the third passage 65, when the gas flow control member When the 40 is in the flow position, the gas flow control member 40 moves relative to the third passage 65 and away from the wall surface of the third passage 65.

In this embodiment, the lower base 10 includes a deflation passage 13 that communicates with the chamber C. A pressure relief cover 14 is plugged into the venting passage 13 to close the deflation passage 13. When the self-pressure sealing cover 1 is to be removed from the opening 120 of the container 100, the pressure releasing cover 14 is opened to release the air pressure in the chamber C, and the sealing unit 70 is restored to the original state or loosened. It is shaped like a braid and does not fit snugly against the ring wall 120.

The elastic unit 30 can be an O-ring of a material such as rubber, and the elastic unit 30 is detachably coupled to the lower base 10 and the support unit 20, so that the elastic unit 30 is dirty, damaged, or When the elasticity is fatigued, it can be removed and replaced.

In this embodiment, the self-pressure sealing cover 1 further includes a drainage channel 80 extending through the supporting unit 20 and the elastic unit 30 and communicating with the first passage 63. The diameter of the drainage channel 80 is smaller than the second The aperture of the passage 64 is used to discharge moisture in the air reservoir. Wherein, the opening end of the drainage channel 80 can be provided with a stopper cover for normally closing the drainage channel 80.

Accordingly, in the self-pressure sealing cover of the embodiment of the present invention, when the pressing member 53 is pressed, the sealing unit 70 expands and deforms to contact the ring wall 120 of the container 100, so that the container 100 is sealed. Therefore, the self-pressure sealing cover of the embodiment of the invention has the advantages of convenient use, quickness and good sealing effect.

The invention has been described above in terms of the preferred embodiments, and it should be understood by those skilled in the art that the present invention is not intended to limit the scope of the invention. It should be noted that variations and permutations equivalent to those of the embodiments are intended to be included within the scope of the present invention. Therefore, the scope of protection of the present invention is defined by the scope of the patent application.

1‧‧‧ Self-pressure seal cap
10‧‧‧ Lower base
11‧‧‧ bottom wall
12‧‧‧Outer side wall
13‧‧‧ Ventilation channel
14‧‧‧Relief cover
20‧‧‧Support unit
21‧‧‧First through hole
30‧‧‧elastic unit
31‧‧‧First rim
32‧‧‧second rim
40‧‧‧ gas flow control
41‧‧‧ gas passage
50‧‧‧Upper base
51‧‧‧ gas storage space
52‧‧‧Main housing
53‧‧‧Pressing parts
531‧‧‧Compression Department
60‧‧‧ gas guiding unit
61‧‧‧Support arm
62‧‧‧Airflow guidance
63‧‧‧First Passage
64‧‧‧second channel
65‧‧‧ third channel
70‧‧‧ Sealing unit
80‧‧‧Drainage channel
100‧‧‧ container
110‧‧‧ openings
120‧‧‧Circle
C‧‧ ‧ room

Fig. 1 is a schematic view showing a self-pressure sealing cover and a container according to an embodiment of the present invention. 2 is a schematic cross-sectional view of a self-pressure sealing cover according to an embodiment of the present invention. [Fig. 3] is an enlarged schematic view of a portion A in Fig. 2. FIG. 4 is a schematic cross-sectional view showing the self-pressure sealing cover pressing the pressing member according to the embodiment of the present invention. [Fig. 5] is an enlarged schematic view of a portion B in Fig. 4. 6 is a schematic cross-sectional view showing a self-pressure sealing cover having a drainage channel according to an embodiment of the present invention.

1‧‧‧ Self-pressure seal cap

10‧‧‧ Lower base

11‧‧‧ bottom wall

12‧‧‧Outer side wall

13‧‧‧ Ventilation channel

14‧‧‧Relief cover

20‧‧‧Support unit

21‧‧‧First through hole

30‧‧‧elastic unit

31‧‧‧First rim

32‧‧‧second rim

40‧‧‧ gas flow control

41‧‧‧ gas passage

50‧‧‧Upper base

51‧‧‧ gas storage space

52‧‧‧Main housing

53‧‧‧Pressing parts

531‧‧‧Compression Department

60‧‧‧ gas guiding unit

61‧‧‧Support arm

62‧‧‧Airflow guidance

63‧‧‧First Passage

64‧‧‧second channel

65‧‧‧ third channel

70‧‧‧ Sealing unit

120‧‧‧Circle

C‧‧ ‧ room

Claims (8)

A self-pressure sealing cover comprising: a lower base comprising a bottom wall and an outer side wall extending upward from the bottom wall; a support unit disposed on the outer side wall, the support unit, the bottom wall and the outer side The wall unit collectively defines a chamber, the supporting unit includes a first through hole communicating with the one of the chambers; an elastic unit is disposed on the supporting unit, the elastic unit includes one of defining a second through hole a first rim and a second rim projecting in the first through hole; a gas flow control member coupled to the first rim and the second ring The gas flow control member includes a gas passage that communicates with the chamber; an upper base is disposed on the elastic unit, the upper base includes a defining a main housing and a pressing member, wherein the pressing member has a compression portion for compressing the air storage space; a gas guiding unit includes a support arm and an air flow guiding portion, a support arm connecting the upper base and the airflow guiding portion, and the branch Between the arm and the airflow guiding portion, there is a first channel, the airflow guiding portion has a second channel and a third channel, and the second channel is disposed in the first channel and the third channel The gas flow control member is disposed in the third passage and moves between a closed position and a flow position. When the gas flow control member is in the closed position, the third passage and the gas passage are Disconnected, the third passage is in communication with the gas passage when the gas flow control member is in the flow position; and a sealing unit is coupled to the support unit and the bottom wall and encloses the chamber, the sealing unit When the pressure is pressed, the outer ring is deformed and expanded; wherein, when the pressing member is pressed to compress the air storage space by the compressing portion, the air pressure in the first to third passages rises, and the first ring edge is The second rim is deformed and the gas flow control member is moved from the closed position to the flow position. The self-pressure sealing cover of claim 1, wherein the gas flow control member is in a closed position against the wall surface of the third passage, and the third passage is not in communication with the gas passage. When the gas flow control member is in the flow position, it leaves the wall surface of the third passage, and the third passage communicates with the gas passage. The self-pressure sealing cover according to claim 1 or 2, wherein the aperture of the first passage is gradually reduced from the inlet end along the length thereof, and the maximum aperture is five times the minimum aperture, and the first The smallest aperture of the channel is greater than the aperture of the second channel. The self-pressure sealing cover of claim 3, wherein the first through hole of the supporting unit has a reverse tapered shape. The self-pressure sealing cap of claim 3, wherein the third passage has a tapered cross section, and the gas flow control member has a tapered cross section corresponding to the third passage. The self-pressure sealing cap of claim 3, wherein the lower base includes a deflation passage that communicates with the chamber. The self-pressure sealing cover of claim 3, further comprising a drainage channel extending through the support unit and the elastic unit and communicating with the first passage, the drainage channel having a smaller aperture than the second passage The aperture. The self-pressure sealing cover of claim 7, wherein the opening end of the drainage channel is provided with a stopper cover for closing the drainage channel.