CN117923406A - Sealed container with linkage plug cover structure - Google Patents

Abstract

The invention discloses a sealed container with a linkage plug cover structure, which comprises a valve seat assembly, and a gas cylinder, a movable rod and a switch assembly which are arranged on the valve seat assembly; the switch component comprises a valve plug core and a deflector rod switch; the valve plug core is rotatably arranged in the liquid outlet pipe and used for conducting or closing the liquid outlet pipe; the deflector rod switch comprises an extension arm, and a rotary connecting part and a gland which are arranged at two ends of the extension arm; when the gland is close to the top end of the movable rod, the valve plug core rotates and enables the liquid outlet pipe to be conducted; when the gland is far away from the top end of the movable rod, the valve plug core rotates and enables the liquid outlet pipe to be closed. According to the invention, the switch operation process can be linked with the downward pressing movement of the movable rod, when the movable rod is pressed by the gland, the extension arm synchronously toggles the valve plug core to rotate to open the liquid outlet pipe, high-pressure gas cannot be rapidly accumulated in the tank body, and the operation is safer and more reliable.

Description

Sealed container with linkage plug cover structure

Technical Field

The invention relates to the field of storage vessels, in particular to a sealed container with a linkage plug cover structure.

Background

At present, a conventional beer tank consists of a tank body, a beer outlet valve inserted into the lower end of the outer wall of the tank body and an air valve fixedly arranged at the top of the tank body, beer is stored in the tank body, when the beer is required to be drunk, the air valve is firstly opened, then the beer outlet valve is pulled out of the beer tank, the beer outlet valve is rotated, and the beer in the beer tank flows out through the beer outlet valve. The beer flows out naturally, the flow speed is slower, and air is easy to bring in when the beer is completely taken and flows back, and the air contains bacteria, so that the taste quality of the beer in the subsequent tank is affected, and the beer is easy to deteriorate. For this reason, a sealed beer can is proposed in the market, which comprises a metal can and a valve cover structure provided with a high-pressure gas cylinder; the gas bottle is opened by operating the valve cover, compressed gas in the gas bottle enters the bottle body, the wine outlet part is opened, and beer in the bottle body can be pressed into the conveying pipe and flows out of the wine outlet part, so that the opening is convenient and labor-saving; compressed gas in the gas cylinder can be intermittently supplemented into the tank body by intermittently pressing the valve cover. Such as a kettle for holding liquids as disclosed in patent number CN202020109757.5 and a beer can as disclosed in patent number CN 202311264370.1.

However, during actual use, the above-mentioned storage vessels have been found to suffer from the following disadvantages:

1. After the compressed gas cylinder is punctured and opened by the tip end in the placing cavity, the valve cover is pressed, so that the movable part and the exhaust core are driven to move, the gas path channel between the gas cylinder and the inner cavity of the tank body is conducted, the compressed gas in the gas cylinder is intermittently supplemented to the inner cavity of the tank body, the air pressure of the inner cavity of the tank body is improved, and beer is extruded out through the beer outlet part. However, if the user does not open the wine outlet part in time and presses the valve cover for a long time, the output of compressed gas in the gas cylinder is quick, at the moment, the pressure release plug does not respond to the pressure release in time, the pressure of the inner wall of the tank body is quickly increased, and the safety risk of tank body explosion exists.

2. The wine outlet part is usually controlled by adopting a switch cap screwing structure, the wine outlet part needs to be opened or closed, the switch cap screwing is required to be rotated for a plurality of circles, a certain time is required in the switching operation process, a certain hysteresis exists, and the wine outlet part cannot be opened or closed in time; and the operation hand feeling of opening and closing is poor. Thus, further improvements are needed.

Therefore, further improvements are needed.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a sealed container with a linkage plug cover structure.

The technical scheme adopted by the embodiment of the invention for solving the technical problems is as follows: a sealed container with a linkage plug cover structure comprises a valve seat assembly, a gas cylinder, a movable rod and a switch assembly, wherein the gas cylinder, the movable rod and the switch assembly are arranged on the valve seat assembly;

The valve seat assembly is arranged at the opening of the tank body; the gas cylinder is mounted on the valve seat assembly; the movable rod is arranged on the valve seat assembly, and can be pressed down to conduct the gas path channel between the gas cylinder and the inner cavity of the tank body; the valve seat assembly is provided with a liquid outlet pipe;

The switch assembly comprises a valve plug core and a deflector rod switch; the valve plug core is rotatably arranged in the liquid outlet pipe and is used for conducting or closing the liquid outlet pipe; the deflector rod switch comprises an extension arm, a rotary connecting part and a gland, wherein the rotary connecting part is arranged at two ends of the extension arm; the rotary connecting part is connected with the valve plug core; the gland can rotate along with the extension arm so as to be close to or far away from the top end of the movable rod;

When the gland is close to the top end of the movable rod, the valve plug core rotates and conducts the liquid outlet pipe; when the gland is far away from the top end of the movable rod, the valve plug core rotates and enables the liquid outlet pipe to be closed; an elastic sealing gasket is arranged in the liquid outlet pipe and is propped between the valve plug core and the feed inlet of the liquid outlet pipe.

Optionally, the valve plug core is arranged in a spherical or elliptic structure, and a central channel is arranged in the valve plug core; the outer contour of the valve plug core can block the liquid outlet pipe, and the central channel can be communicated with the liquid outlet pipe.

Optionally, two extension arms are provided and are arranged on two opposite sides of the liquid outlet pipe, and the rotation connecting part is arranged below the extension arms; a middle connecting beam is arranged between the two extension arms.

Optionally, the middle connecting beam is provided with a locking buckle, and the locking buckle can be buckled on the liquid outlet pipe.

Optionally, the valve seat assembly comprises a fixed seat, a bottle opening seat, a floating piston seat, a needling assembly and an exhaust valve core;

the fixed seat is arranged at the opening of the tank body; the gas cylinder is arranged in the placing cavity; the bottle opening seat is arranged on the fixed seat and can open the gas bottle through the needling assembly;

The bottle opening seat is provided with a cylindrical piston air cavity; the piston air cavity is communicated with the placing cavity through a first exhaust hole and is communicated with the inner cavity of the tank body through a second exhaust hole; the exhaust valve core is arranged at the first exhaust hole;

The floating piston seat is arranged in the piston air cavity in a vertically sliding manner; the floating piston seat is provided with an exhaust communication hole; the floating piston seat is provided with a piston return spring, and the piston return spring can enable the floating piston seat to be close to the bottom of the fixed seat; when the floating piston seat moves upwards, the exhaust communication hole can be communicated with the first exhaust hole and the second exhaust hole.

Optionally, the movable rod is provided with a first sealing groove for installing the exhaust plugging piece; when the floating piston seat moves upwards and the exhaust communication hole is positioned on or passes through the exhaust blocking piece, the exhaust blocking piece can block the conduction state of the exhaust communication hole and the first exhaust hole gas path.

Optionally, a sealing cover is arranged above the bottle opening seat; the sealing cover can seal the piston air cavity; the sealing cover can abut against and limit the upward moving position of the movable rod and the floating piston seat; when the movable rod moves upwards and abuts against the sealing cover; the height of the first seal groove is higher than the highest position of the exhaust communication hole.

Optionally, the piston air cavity comprises an upper piston chamber and a lower piston chamber; the floating piston seat comprises an upper piston seat and a lower piston seat; the aperture of the upper piston chamber is larger than that of the lower piston chamber; the exhaust communication hole is arranged on the lower piston seat, the first exhaust hole is arranged on the lower piston chamber, and the second exhaust hole is arranged on the upper piston chamber;

The upper piston seat can slide up and down in the upper piston cavity and can abut against the upper edge of the lower piston cavity; the lower piston seat can slide up and down in the lower piston cavity, and an air outlet pressure storage cavity is formed below the lower piston seat and is spaced from the first air exhaust hole.

Optionally, a second sealing groove for embedding an upper sealing ring is formed in the periphery of the upper piston seat; the upper sealing ring is propped between the upper piston cavity and the upper piston seat; the periphery of the lower piston seat is provided with a third sealing groove for embedding a lower sealing ring; the lower sealing ring is propped between the lower piston cavity and the lower piston seat.

Optionally, a glass liner is detachably arranged below the bottle opening seat; the placing cavity is arranged on the glass liner; the bottle opening seat is detachably arranged on the fixing seat.

The invention has the beneficial effects that: the extension arm with longer moment is matched with the rotary connecting part, and the rotary connecting part is connected with the valve plug core; in the process of stirring the extension arm, the valve plug core can be synchronously rotated to control the connection or disconnection of the liquid outlet pipe; in addition, the switching process of the switch structure and the operation process of pushing down the movable rod to open the gas channel of the gas cylinder and the inner cavity of the tank body form linkage control; when the gland is close to the top end of the movable rod, the valve plug core rotates and enables the liquid outlet pipe to be conducted, the gland can be pressed at the moment to perform the operation of deflating and supplementing air of the air bottle, meanwhile, the liquid outlet pipe is conducted, and high-pressure air cannot be accumulated in the tank body rapidly; when the gland is far away from the top of the movable rod, the valve plug core rotates and enables the liquid outlet pipe to be closed, at the moment, the gland is far away from the top of the movable rod, a user is difficult to press the movable rod, and misoperation of air supplementing is difficult to occur. According to the invention, the operation feedback of pulling the extension arm is simple and visual, and the switching operation of the liquid outlet pipe can be completed through the valve plug core under the condition of rotating a certain included angle or a half turn, so that the operation response is quick and timely; and moreover, the switch operation process can form linkage with the pressing movement of the movable rod, when the movable rod is pressed by the gland, the extension arm synchronously toggles the valve plug core to rotate to open the liquid outlet pipe, high-pressure gas cannot be rapidly accumulated in the tank body, and the operation is safer and more reliable. Moreover, through the elastic sealing gasket, the pressing sealing effect of the feed inlet of the liquid outlet pipe and the outer contour of the valve plug core can be maintained in the process of rotating the valve plug core.

In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a container employing a linked closure structure of the present invention;

FIG. 2 is a schematic view of the structure of the linked plug of FIG. 1;

FIG. 3 is a schematic view of the valve cover switch of FIG. 2 in a semi-cut-away view along the longitudinal direction of the drain pipe;

FIG. 4 is a cross-sectional view of the valve cover switch of FIG. 2 at the valve plug core;

FIG. 5 is a schematic view of the fixing base in FIG. 2;

FIG. 6 is a schematic view of the bottle opening base in FIG. 2;

FIG. 7 is a schematic view of the floating piston seat of FIG. 2;

FIG. 8 is a schematic view of the floating piston seat in FIG. 2 when the movable rod is pushed down and the exhaust communication hole is not conducting;

FIG. 9 is a schematic view showing the structure of the floating piston seat in a state in which the movable rod is pushed down and the exhaust communication hole is not conducted in FIG. 2;

FIG. 10 is a schematic diagram showing the structure of the movable rod in FIG. 2 in a state in which the movable rod is reset and moved upward, the floating piston seat is moved upward, and the exhaust communication hole is opened;

FIG. 11 is a schematic view of a linkage plug cover according to another embodiment of the present invention;

fig. 12 is a schematic structural view of a linkage plug cover according to still another embodiment of the present invention.

Description of main reference numerals:

10. A gas cylinder; 20. a movable rod; 21. a first seal groove; 22. an exhaust closure; 23. a spring blocking ring; 30. a fixing seat; 31. a placement cavity; 32. the tank body extends into the air passage; 40. a bottle opening seat; 41. a piston air cavity; 411. an upper piston chamber; 412. a lower piston chamber; 42. a first exhaust hole; 43. a second exhaust hole; 44. the air outlet pressure storage cavity; 45. a liner; 50. a floating piston seat; 51. an exhaust communication hole; 52. a piston return spring; 53. a spring mounting groove; 54. an upper piston seat; 55. a lower piston seat; 56. a second seal groove; 57. an upper sealing ring; 58. a third seal groove; 59. a lower sealing ring; 60. a needling assembly; 61. an exhaust valve core; 62. a sealing block; 70. a cover; 80. a liquid outlet pipe; 81. an elastic sealing gasket; 82. a pressure relief plug; 90. a switch assembly; 91. a valve plug core; 92. a deflector rod switch; 921. a rotary connection part; 922. an extension arm; 923. the middle part is connected with the beam; 924. locking buckles; 925. and (5) pressing cover.

Detailed Description

Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.

In the description of the present invention, plural means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and the above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless clearly defined otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly and may be connected directly or indirectly through an intermediary; the connecting device can be fixedly connected, detachably connected and integrally formed; may be a mechanical connection; may be a communication between two elements or an interaction between two elements. The specific meaning of the words in the invention can be reasonably determined by a person skilled in the art in combination with the specific content of the technical solution.

Examples

Referring to fig. 1 to 12, the present invention provides a sealed container with a linked plug cover structure, which comprises a valve seat assembly, a gas cylinder 10 mounted on the valve seat assembly, a movable rod 20 and a switch assembly 90;

The valve seat assembly is arranged at the opening of the tank body; the gas cylinder 10 is mounted on the valve seat assembly; the movable rod 20 is arranged on the valve seat assembly, and the movable rod 20 is pressed down to conduct the gas path channel between the gas cylinder 10 and the inner cavity of the tank body; the valve seat assembly is provided with a liquid outlet pipe 80;

The switch assembly 90 includes a valve plug 91 and a lever switch 92; the valve plug 91 is rotatably disposed in the liquid outlet pipe 80, and is used for turning on or off the liquid outlet pipe 80; the lever switch 92 includes an extension arm 922, and a rotary connecting portion 921 and a gland 925 provided at both ends of the extension arm 922; the rotation connection 921 is connected to the plug core 91; the gland 925 can rotate with the extension arm 922 to move toward or away from the top end of the movable rod 20;

when the gland 925 approaches the top end of the movable rod 20, the valve plug 91 rotates and turns on the liquid outlet pipe 80; when the gland 925 is away from the top end of the movable stem 20, the valve plug 91 rotates and closes the outlet tube 80.

In the present invention, the extension arm 922 with a longer moment is matched with the rotation connection part 921, and the rotation connection part 921 is connected to the valve plug core 91; during the process of pulling the extension arm 922, the valve plug 91 can be synchronously rotated to control the liquid outlet pipe 80 to be turned on or turned off; in addition, the switching process of the switching structure and the operation process of pushing down the movable rod 20 to open and conduct the gas cylinder 10 and the gas path channel of the inner cavity of the tank body form linkage control; when the gland 925 is close to the top end of the movable rod 20, the valve plug core 91 rotates and enables the liquid outlet pipe 80 to be conducted, at the moment, the gland 925 can be pressed to perform the operation of deflating and supplementing air of the air bottle 10, meanwhile, the liquid outlet pipe 80 is conducted, and high-pressure air cannot be accumulated in the tank body rapidly; when the gland 925 is far away from the top end of the movable rod 20, the valve plug 91 rotates and closes the liquid outlet pipe 80, and at this time, the gland 925 is far away from the top of the movable rod 20, so that a user is hard to press the movable rod 20, and the misoperation of air supplement is hard to be performed. In the invention, the operation feedback of the extension arm 922 is simple and visual, and the liquid outlet pipe 80 can be switched through the valve plug core 91 under the condition of rotating a certain included angle or a half turn angle, so that the operation response is quick and timely; and, this switch operation process can form the linkage with the pushing down activity of movable rod 20, when pressing movable rod 20 through gland 925, extension arm 922 has stirred valve plug core 91 in step and has rotated and opened drain pipe 80, can not accumulate high-pressure gas fast in the jar body, and the operation is more safe and reliable. Moreover, the elastic sealing gasket 81 can maintain the pressing sealing effect between the feed inlet of the liquid outlet pipe 80 and the outer contour of the valve plug core 91 during the rotation of the valve plug core 91.

In the present embodiment, the valve plug core 91 is arranged in a spherical or elliptic structure, and a central channel is arranged inside; the outer contour of the valve plug 91 may block the drain pipe 80, and the central passage may conduct the drain pipe 80. The liquid outlet pipe 80 is used for installing the cross section of the chamber of the valve plug core 91 and is arranged in an elliptic or spherical structure; the valve plug core 91 can rotate in the liquid outlet pipe 80 under the rotation of the rotation connecting part 921, and the liquid outlet pipe 80 can be plugged by utilizing the outer contour of the valve plug core 91; meanwhile, the liquid outlet pipe 80 can be conducted through the central channel, so that the switching control of the liquid outlet pipe 80 channel is realized.

Specifically, an elastic sealing pad 81 is disposed in the liquid outlet pipe 80, and the elastic sealing pad 81 is abutted between the valve plug core 91 and the feed inlet of the liquid outlet pipe 80. By the elastic sealing gasket 81, the pressing sealing effect between the feed inlet of the liquid outlet pipe 80 and the outer contour of the valve plug core 91 can be maintained in the process of rotating the valve plug core 91.

In this embodiment, two extension arms 922 are provided and are disposed on opposite sides of the liquid outlet pipe 80, and a rotation connection portion 921 is disposed below the extension arms 922; a middle connecting beam 923 is provided between the two extension arms 922. Two rotation connection parts 921 may be provided at both sides of the liquid outlet pipe 80 and connected to opposite ends of the valve plug core 91; so that the connection between the shift lever switch 92 and the valve plug 91 is more reliable and stable.

Specifically, in order to increase the strength of the two extension arms 922, a middle connection beam 923 is provided between the two extension arms 922.

Further, the middle connecting beam 923 is provided with a locking buckle 924, and the locking buckle 924 can be buckled on the liquid outlet pipe 80. The middle connecting beam 923 is buckled at the liquid outlet pipe 80 through the locking buckle 924, so that the state that the middle connecting beam 923 is attached to the liquid outlet pipe 80 in parallel can be maintained, and the closing state of the valve plug core 91, namely the closing state of the liquid outlet pipe 80, can be maintained, so that the locking closing of the beer can be maintained.

In this embodiment, the valve seat assembly includes a fixed seat 30, a bottle opening seat 40, a floating piston seat 50, a needling assembly 60, and an exhaust valve core 61;

The fixed seat 30 is arranged at the opening of the tank body; the gas cylinder 10 is mounted in the placement cavity 31; the bottle opening seat 40 is arranged on the fixed seat 30 and can open the gas bottle 10 through the needling assembly 60;

The bottle opening seat 40 is provided with a cylindrical piston air cavity 41; the piston air cavity 41 is communicated with the placing cavity 31 through a first air exhaust hole 42 and is communicated with the inner cavity of the tank body through a second air exhaust hole 43; the exhaust valve core 61 is mounted to the first exhaust hole 42;

The floating piston seat 50 is installed on the piston air chamber 41 in a vertically sliding manner; the floating piston seat 50 is provided with an exhaust communication hole 51; the floating piston seat 50 is provided with a piston return spring 52, and the piston return spring 52 can enable the floating piston seat 50 to be close to the bottom of the fixed seat 30; when the floating piston holder 50 moves upward, the exhaust communication hole 51 may communicate with the first exhaust hole 42 and the second exhaust hole 43.

When the movable rod 20 is pressed down, the bottom of the movable rod 20 moves the air vent valve core 61 and opens the first air vent 42; subsequently, the compressed gas is accumulated in the partial piston air chamber 41 under the floating piston seat 50, and the partial piston air chamber is pressurized to push the floating piston seat 50 upward, and the discharge communication hole 51 may communicate the first and second discharge holes 42 and 43 after the floating piston seat 50 is moved upward by a certain height; thereby delivering compressed gas below the floating piston seat 50 into the canister; subsequently, the air pressure below the floating piston holder 50 is lowered, the floating piston holder 50 moves downward to return by the piston return spring 52, and the exhaust communication hole 51 cannot communicate with the first exhaust hole 42 and the second exhaust hole 43. According to the invention, when compressed gas of the gas cylinder 10 is sent to the lower part of the piston air cavity 41 through the first exhaust hole 42, after a certain air pressure is accumulated below the floating piston seat 50, the floating piston seat 50 is pushed to move upwards and compress the return spring, the response time of the process is slower, a certain delay is provided, the response time of the pressure release plug 82 is provided, and the safety risk of tank explosion is reduced.

In the present embodiment, the movable rod 20 is provided with a first seal groove 21 for mounting the vent plug 22; when the floating piston seat 50 moves upward and the exhaust communication hole 51 is located at or passes over the exhaust blocking member 22, the exhaust blocking member 22 can block the conduction state of the exhaust communication hole 51 and the gas path of the first exhaust hole 42. When the user forgets to release the movable lever 20, causing the movable lever 20 to maintain the push rod exhaust valve core 61 moved downward; by using the first seal groove 21, the gap between the lower part of the exhaust communication hole 51 or the exhaust movable rod 20 and the floating piston seat 50 can be blocked, so that the communication between the exhaust communication hole 51 and the first exhaust hole 42 can be blocked, and the compressed gas below the floating piston seat 50 is prevented from being sent into the tank body, and is maintained below the floating piston seat 50 and the piston air cavity 41, so that the risk of explosion caused by rapid inflation of the tank body can be avoided.

The holder 30 is provided with a can extension air passage 32 extending toward the lower side of the can, which communicates with a second exhaust hole 43.

In the present embodiment, a cover 70 is installed above the bottle opening seat 40; the sealing cover 70 can seal the piston air cavity 41; the cover 70 may abut and limit the position of the movable rod 20 and floating piston seat 50 to move upward; specifically, the cover 70 is threadably secured over the bottle opening base 40.

Wherein when the movable bar 20 moves up and against the cover 70; the height of the first seal groove 21 is higher than the highest position where the exhaust communication hole 51 moves upward. That is, when the movable rod 20 is reset against the cover 70, the first seal groove 21 and the exhaust blocking piece 22 cannot block the conduction of the exhaust communication hole 51; the exhaust communication hole 51 can realize the communication between the first exhaust hole 42 and the second exhaust hole 43, and since the movable rod 20 is far away from the exhaust valve core 61, the compressed gas cylinder 10 cannot continuously charge toward the tank, thereby effectively preventing the risk of rapid charging explosion of the tank.

In the present embodiment, the piston return spring 52 is disposed above the floating piston seat 50. The upper piston return spring 52 is convenient to install, and the piston return spring 52 can be installed in the process of locking the sealing cover 70 through threads.

Preferably, a spring mounting groove 53 is provided above the floating piston seat 50; a spring blocking ring table 23 is arranged above the movable rod 20; the piston return spring 52 is mounted between the spring mounting groove 53 and the spring blocking ring table 23. In the specific installation process, the floating piston seat 50 is firstly installed in the piston air cavity 41, then the piston return spring 52 is installed in the spring installation groove 53, the movable rod 20 is installed on the floating piston seat 50 in a penetrating mode, the upper portion of the piston return spring 52 is pressed, and then the sealing cover 70 is locked through threads, so that the movable rod 20, the piston return spring 52 and the floating piston seat 50 can be assembled. And, the downward elasticity of piston reset spring 52 can realize floating piston seat 50 down and reset, and upward elasticity can realize movable rod 20 up and reset, and single piston reset spring 52 can realize both's reset operation, compact structure is reasonable.

In the present embodiment, the elastic force of the piston return spring 52 is adjusted to match the air pressure of the compressed air cylinder 10; when the gas in the piston air chamber 41 is discharged to the tank body, the gas pressure is reduced to a design pressure value, and the piston return spring 52 can press down the floating piston seat 50 to realize the return. This design pressure value, accessible adjustment piston return spring 52 to match different jar body and content product, realize providing the jar body of different jar body pressure user demand, the structure of should cock cover is installed in the matching and use.

In some embodiments, the piston air chamber 41 includes an upper piston chamber 411 and a lower piston chamber 412; the floating piston seat 50 includes an upper piston seat 54 and a lower piston seat 55; the upper piston chamber 411 has a larger bore diameter than the lower piston chamber 412; the exhaust communication hole 51 is provided in the lower piston seat 55, the first exhaust hole 42 is provided in the lower piston chamber 412, and the second exhaust hole 43 is provided in the upper piston chamber 411;

The upper piston seat 54 can slide up and down in the upper piston chamber 411 and can abut against the upper edge of the lower piston chamber 412; the lower piston seat 55 is slidable up and down in the lower piston chamber 412, and is spaced below from the first exhaust hole 42 to form the gas pressure storage chamber 44.

The cylindrical structure with the big upper part and the small lower part can limit the lowest position of the lower part of the floating piston seat 50 by abutting against the upper edge of the lower piston chamber 412; and an air-out pressure storage chamber 44 is formed below and spaced apart from the first air outlet 42, and can be used for primarily buffering and storing the compressed air sent out from the first air outlet 42.

In the present embodiment, the outer periphery of the upper piston seat 54 is provided with a second seal groove 56 for embedding an upper seal ring 57; the upper sealing ring 57 is abutted between the upper piston chamber 411 and the upper piston seat 54; the periphery of the lower piston seat 55 is provided with a third sealing groove 58 for embedding a lower sealing ring 59; the lower seal 59 is disposed against the lower piston chamber 412 and the lower piston seat 55. Through the second seal groove 56 and the third seal groove 58, the floating piston holder 50 and the upper and lower piston chambers 411 and 412, respectively, may be sealed such that high-pressure gas may only be output from the gas-outlet pressure storage chamber 44, sequentially through the gap between the movable rod 20 and the floating piston holder 50, the exhaust communication hole 51, and the second exhaust hole 43 toward the tank body inner chamber.

Further, two third seal grooves 58 are provided at an interval in the up-down direction of the lower piston seat 55; the exhaust communication hole 51 is provided between the two third seal grooves 58; when the upper third seal groove 58 passes over the upper edge of the lower piston chamber 412, the exhaust communication hole 51 communicates with the second exhaust hole 43. Through the upper and lower third sealing grooves 58 and the lower sealing ring 59, the exhaust communication hole 51 can only conduct compressed gas between the upper and lower third sealing grooves 58, and is matched with the first sealing groove 21 of the movable rod 20; so that the floating piston seat 50 can be communicated with the first vent hole 42 and the second vent hole 43 only when the movable rod 20 is in a state of being moved up and reset away from the vent valve core 61, and the third seal groove 58 above the floating piston seat 50 passes over the upper edge of the lower piston chamber 412; after the air pressure of the air-out pressure storage cavity 44 is reduced, the floating piston seat 50 moves downwards under the action of the piston return spring 52, so that the conduction state of the air discharge communication hole 51 can be quickly closed, and intermittent air supply of the compressed air with quantitative constant pressure is realized.

Referring to fig. 2 and 11, the fixing base 30 may be fastened to the opening of the tank body by fastening, or may be detachably mounted to the opening of the tank body by screwing.

The specific working process is as follows:

referring to fig. 8, when the movable rod 20 is pressed down, the bottom of the movable rod 20 can push the air vent valve core 61 open, so that the placing cavity 31 is communicated with the piston air cavity 41, compressed air is supplemented to the air vent pressure storage cavity 44 below the piston air cavity 41, and when the compressed air is conveyed towards the second air vent 43 through the gap between the movable rod 20 and the floating piston seat 50, the compressed air is blocked by the third sealing groove 58 and the lower sealing ring 59 above and cannot be conducted towards the second air vent 43; the floating piston seat 50 is moved upward by the gas pressure in the gas storage chamber 44 being greater than the elastic force of the piston return spring 52.

Referring to fig. 9, if the pressing of the movable rod 20 is not released, the floating piston seat 50 is raised to a certain height or to a maximum height, and then the exhaust communication hole 51 is located in or passes through the first seal groove 21 and the exhaust seal 22; at this time, the gap between the movable rod 20 and the floating piston seat 50 is sealed by the first sealing groove 21 and the exhaust blocking piece 22; the compressed gas can not be output towards the tank body, so that the risk of rapid inflation explosion of the tank body is effectively prevented.

Referring to fig. 10, when the movable rod 20 is released from being pressed, the movable rod 20 moves upward to be reset, and at this time, the first seal groove 21 cannot seal the exhaust communication hole 51 or the gap between the movable rod 20 and the floating piston seat 50; the upper third seal groove 58 passes over the upper edge of the lower piston chamber 412, and the exhaust communication hole 51 communicates with the second exhaust hole 43, whereby the gas in the gas storage chamber 44 can be supplied to the tank, the first exhaust hole 42 is blocked, and after supplying the gas at a predetermined pressure, the floating piston seat 50 moves downward and returns to the original position, thereby closing the exhaust communication hole 51 again.

Referring to fig. 12, in some embodiments, a liner 45 is detachably mounted below the bottle opening seat 40; the placing cavity 31 is arranged on the glass liner 45; the bottle opening seat 40 is detachably mounted on the fixing seat 30.

Specifically, a glass liner 45 is detachably arranged below the bottle opening seat 40, and the placing cavity 31 is arranged in the glass liner 45; the gas cylinder 10 can be installed in the liner 45 and independently installed with the bottle opening seat 40, and the process of locking the liner 45 through threads can be utilized to puncture and open the gas cylinder 10 by utilizing the needling assembly 60 of the bottle opening seat 40. The installation of the gas cylinder 10 and the installation of the related elements such as the vent valve core 61, the movable piece or the valve cover above the bottle opening seat 40 for opening the gas path channel of the compressed gas cylinder 10 are mutually independent, and the higher airtight requirement between the placing cavity 31 and the cavity of the bottle opening seat 40 is not needed to be considered, so that the use of sealing elements can be reduced, the assembly process is simplified, and the production cost is reduced. Moreover, the gas cylinder 10 can be assembled and disassembled only by disassembling the liner 45 without disassembling the associated elements in the cylinder seat 40, the replaceable gas cylinder 10 can be used for multiple times, and when the compressed gas cylinder 10 is opened by first puncturing, the liner 45 is contacted by hands, and more visual operation feedback such as air pressure expansion, puncturing and the like can also be provided.

Further, a sealing block 62 is arranged below the bottle opening seat 40; the sealing block 62 is disposed against the lancing assembly 60 and the vial 10. The sealing block 62 has elasticity, and can press against the sealing block 62 to seal in the process of upward movement of the gas cylinder 10. The needle end of the lancing assembly 60 can pass through the sealing block 62.

Of course, the present application is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications and substitutions without departing from the spirit of the present application, and these equivalent modifications and substitutions are included in the scope of the present application as defined in the appended claims.

Claims (10)

1. A sealed container with a linkage plug cover structure comprises a valve seat assembly, a gas cylinder (10) arranged on the valve seat assembly, a movable rod (20) and a switch assembly (90); the method is characterized in that:

The valve seat assembly is arranged at the opening of the tank body; the gas cylinder (10) is mounted to the valve seat assembly; the movable rod (20) is arranged on the valve seat assembly, and the movable rod (20) is pressed down to conduct the gas path channel between the gas cylinder (10) and the inner cavity of the tank body; the valve seat assembly is provided with a liquid outlet pipe (80);

The switch assembly (90) comprises a valve plug core (91) and a deflector rod switch (92); the valve plug core (91) is rotatably arranged in the liquid outlet pipe (80) and is used for conducting or closing the liquid outlet pipe (80); the deflector rod switch (92) comprises an extension arm (922), and a rotary connecting part (921) and a gland (925) which are arranged at two ends of the extension arm (922); the rotation connecting part (921) is connected to the valve plug core (91); the gland (925) can rotate along with the extension arm (922) to be close to or far away from the top end of the movable rod (20);

When the gland (925) is close to the top end of the movable rod (20), the valve plug core (91) rotates and conducts the liquid outlet pipe (80); when the gland (925) is far away from the top end of the movable rod (20), the valve plug core (91) rotates and closes the liquid outlet pipe (80); an elastic sealing gasket (81) is arranged in the liquid outlet pipe (80), and the elastic sealing gasket (81) is propped between the valve plug core (91) and the feed inlet of the liquid outlet pipe (80).

2. The sealed container with a linked plug structure according to claim 1, wherein: the valve plug core (91) is arranged in a spherical or elliptic structure, and a central channel is arranged in the valve plug core; the outer contour of the valve plug core (91) can block the liquid outlet pipe (80), and the central channel can be communicated with the liquid outlet pipe (80).

3. The sealed container with a linked plug structure according to claim 2, wherein: the two extension arms (922) are arranged on two opposite sides of the liquid outlet pipe (80), and the rotary connecting part (921) is arranged below the extension arms (922); a middle connecting beam (923) is arranged between the two extension arms (922).

4. A sealed container having a linked plug structure according to claim 3, wherein: the middle connecting beam (923) is provided with a locking buckle (924), and the locking buckle (924) can be buckled on the liquid outlet pipe (80).

5. The sealed container with a linked plug structure according to claim 1, wherein: the valve seat assembly comprises a fixed seat (30), a bottle opening seat (40), a floating piston seat (50), a needling assembly (60) and an exhaust valve core (61);

The fixed seat (30) is arranged at the opening of the tank body; the gas cylinder (10) is arranged in the placing cavity (31); the bottle opening seat (40) is arranged on the fixed seat (30) and can open the gas bottle (10) through the needling assembly (60);

The bottle opening seat (40) is provided with a cylindrical piston air cavity (41); the piston air cavity (41) is communicated with the placing cavity (31) through a first exhaust hole (42) and is communicated with the inner cavity of the tank body through a second exhaust hole (43); the exhaust valve core (61) is arranged on the first exhaust hole (42);

The floating piston seat (50) is arranged in the piston air cavity (41) in a vertically sliding manner; the floating piston seat (50) is provided with an exhaust communication hole (51); the floating piston seat (50) is provided with a piston return spring (52), and the piston return spring (52) can enable the floating piston seat (50) to be close to the bottom of the fixed seat (30); when the floating piston seat (50) moves upward, the exhaust communication hole (51) may communicate the first exhaust hole (42) and the second exhaust hole (43).

6. The sealed container with a linked plug structure according to claim 5, wherein: the movable rod (20) is provided with a first sealing groove (21) for installing an exhaust blocking piece (22); when the floating piston seat (50) moves upwards and the exhaust communication hole (51) is positioned on or passes through the exhaust blocking piece (22), the exhaust blocking piece (22) can block the conduction state of the exhaust communication hole (51) and the air path of the first exhaust hole (42).

7. The sealed container with a linked plug structure according to claim 6, wherein: a sealing cover (70) is arranged above the bottle opening seat (40); the sealing cover (70) can seal the piston air cavity (41); the cover (70) can abut against and limit the upward movement of the movable rod (20) and the floating piston seat (50); when the movable rod (20) moves up and abuts against the cover (70); the height of the first seal groove (21) is higher than the highest position of the exhaust communication hole (51) moving upwards.

8. The sealed container with a linked plug structure according to claim 5, wherein: the piston air cavity (41) comprises an upper piston chamber (411) and a lower piston chamber (412); the floating piston seat (50) comprises an upper piston seat (54) and a lower piston seat (55); -the upper piston chamber (411) has a larger bore diameter than the lower piston chamber (412); the exhaust communication hole (51) is provided in the lower piston seat (55), the first exhaust hole (42) is provided in the lower piston chamber (412), and the second exhaust hole (43) is provided in the upper piston chamber (411);

The upper piston seat (54) can slide up and down in the upper piston chamber (411) and can abut against the upper edge of the lower piston chamber (412); the lower piston seat (55) can slide up and down in the lower piston chamber (412), and an air outlet pressure storage cavity (44) is formed below and spaced from the first air outlet hole (42).

9. The sealed container with a linked plug structure according to claim 8, wherein: the periphery of the upper piston seat (54) is provided with a second sealing groove (56) for embedding an upper sealing ring (57); the upper sealing ring (57) is propped between the upper piston chamber (411) and the upper piston seat (54); a third sealing groove (58) for embedding a lower sealing ring (59) is formed in the periphery of the lower piston seat (55); the lower sealing ring (59) is abutted between the lower piston chamber (412) and the lower piston seat (55).

10. The sealed container with a linked plug structure according to claim 5, wherein: a glass liner (45) is detachably arranged below the bottle opening seat (40); the placing cavity (31) is arranged on the glass liner (45); the bottle opening seat (40) is detachably arranged on the fixed seat (30).