CN114704774A

CN114704774A - Inflation structure

Info

Publication number: CN114704774A
Application number: CN202210409217.2A
Authority: CN
Inventors: 任大江
Original assignee: Guangzhou Shimei Technology Co ltd
Current assignee: Guangzhou Shimei Technology Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-07-05
Anticipated expiration: 2042-04-19
Also published as: CN114704774B

Abstract

The invention provides an inflation structure, which comprises a trigger switch, a first valve core and a switch body, wherein the first valve core is movably arranged in a conduction cavity in the switch body in a penetrating way, a sealing ring with the minimum diameter larger than that of the conduction cavity is arranged on the first valve core, and an elastic element is arranged between the first valve core and the conduction cavity; the pressure reducing valve comprises a pressure reducing valve body, wherein a first cavity and a second cavity which are communicated with each other are arranged in the pressure reducing valve body; the gas cylinder switch can extend out of the bottom of the second cavity to block the communication between the first cavity and the second cavity and press the pressure control device, and when the first valve core is not closed to conduct the cavity, the pressure control device and the gas cylinder switch alternately interact to enable the cavity, the first channel and the gas cylinder to be communicated. This application can realize rapid and stable's the operation of aerifing through trigger switch and relief pressure valve cooperation.

Description

Inflation structure

Technical Field

The invention belongs to the technical field of inflation, and particularly relates to an inflation structure.

Background

Aiming at the storage problem of the wine after the bottle is opened, a lot of inert gases which do not react with the wine in the bottle are injected into the bottle for storage, and the operation of replacing the wine in the bottle can be further realized by injecting the gases. However, the inflation structure of the device is generally connected with the gas cylinder through the gas pipe, and is connected with the liquid taking needle matched with the bottle body after being connected with the pressure reducing valve, the portability and the usability of the inflation structure are poor, all parts need to be connected in advance during operation, and the use experience is very poor; some gas filled structure in addition is integrated with gas cylinder and relief pressure valve, still will get liquid needle integration in an organic whole even, but this type of gas filled structure generally still needs additionally to set up the inflated trigger mechanism of control, and the valve body structure is complicated relatively moreover, is difficult to control pressure of giving vent to anger, all need control corresponding trigger mechanism to realize the inflatable opening or stop during the use and after using, also has certain influence to use experience, simultaneously, this type of gas filled structure's stability and life also very easily receive the influence consequently.

Disclosure of Invention

In order to solve the problems that the portable usability of the inflatable structure is poor, the valve body structure is complex, the air outlet pressure is difficult to control, the corresponding trigger mechanism is required to be controlled to realize the opening or the stopping of inflation during use and after use, certain influence is caused on the use experience, the stability and the service life are easily influenced, and the like, the inflatable structure is provided to solve the technical defect problem.

The invention provides an inflatable structure, comprising:

the trigger switch comprises a first valve core and a switch body, the first valve core is movably arranged in a conduction cavity in the switch body in a penetrating mode, a sealing ring with the minimum diameter larger than that of the conduction cavity is arranged on the first valve core, and an elastic element is arranged between the first valve core and the conduction cavity;

the pressure reducing valve comprises a pressure reducing valve body, wherein a first cavity and a second cavity which are communicated with each other are arranged in the pressure reducing valve body;

the gas cylinder switch can extend out of the bottom of the second cavity to block the communication between the first cavity and the second cavity and abut against the pressure control device, and when the first valve core is not closed to conduct the cavity, the pressure control device and the gas cylinder switch alternately interact to enable the cavity, the first channel and the gas cylinder to be communicated. The utility model provides an inflatable structure sets up through trigger switch's structure, can switch on inside air flue automatically when trigger switch's first case and the cooperation of aerifing the opponent spare, realizes stablizing continuous output to the air supply of aerifing the opponent spare through the inside gas cylinder switch of relief pressure valve and pressure control device, breaks away from to aerify and to aerify the opponent spare after trigger switch can the self-sealing air flue under elastic element's effect, need not extra operation control, simplified the operation of aerifing, promote the operation and experience and feel.

In some specific embodiments, an upper portion of the first valve spool protrudes beyond a surface of the switch body, and the resilient element comprises a spring. By means of the arrangement, the first valve core can be matched with the inflating hand piece conveniently.

In some specific embodiments, the minimum caliber of the conduction cavity is located at the upper part of the conduction cavity, an air outlet gap exists between the upper part of the first valve core and the upper part of the conduction cavity, the sealing ring is arranged at the lower part of the first valve core, and the elastic element is arranged at the bottom end of the first valve core. The trigger switch of this structure simple structure, the size of first case is great relatively, and stability is stronger.

In some specific embodiments, the minimum aperture of the conduction cavity is located at the lower part of the conduction cavity, an air outlet gap exists between the lower part of the first valve core and the minimum aperture of the conduction cavity, the lower part of the first valve core penetrates through the minimum aperture of the conduction cavity, and a sealing ring with a size larger than the minimum aperture is arranged on the other side of the lower part of the first valve core. The trigger switch with the structure can control the size of the head to be smaller, has smaller resistance when being matched with an inflating opponent member, and is more convenient to operate.

In some specific embodiments, two annular protrusions with the same size as the upper caliber of the conduction cavity are arranged in the middle of the first valve core, a second sealing ring is arranged in a groove between the two annular protrusions, the elastic element is arranged at the bottom of the lower annular protrusion, the upper part of the first valve core is of a hollow structure, and an opening communicated with the hollow structure is formed below the lower annular protrusion. Rely on this setting to make first case more steady when switching on the activity in the cavity, avoid rocking, ensure sealing performance simultaneously.

In some specific embodiments, the gas cylinder switch comprises a switch valve seat, a second valve core, a valve core sealing element and a puncturing element, wherein the second valve core is movably arranged in an inner cavity of the switch valve seat, the switch valve seat fixes the valve core sealing element on the top end of the first cavity, the puncturing element is arranged at the other end, opposite to the valve core sealing element, of the switch valve seat, and a second elastic element is arranged at the bottom of the second valve core. The second valve core is limited in the switch valve seat by means of the valve core sealing piece and the puncture piece, and the second valve core is pushed by the second elastic element to be matched with the valve core sealing piece to realize sealing of the first cavity and the second cavity.

In some specific embodiments, the gas cylinder sealing device further comprises a gas cylinder sealing gasket and a gas cylinder fixing seat, wherein the gas cylinder sealing gasket is sleeved on the puncture piece, and the gas cylinder sealing gasket is pressed on the end face of the switch valve seat through the gas cylinder fixing seat. By virtue of this arrangement, airtightness at the time of fitting of the gas cylinder can be ensured.

In some specific embodiments, the switch valve seat and the gas cylinder fixing seat are fixedly matched with the first cavity through a thread structure arranged on the first cavity, and a sealing ring is further arranged between the switch valve seat and the first cavity. By means of the arrangement, the gas cylinder fixing seat can be utilized to fix the gas cylinder sealing gasket, and meanwhile, the switch valve seat is further fixed.

In some specific embodiments, the pressure control device includes a piston seat, a piston, and a spring, the piston and the piston seat are both hollow T-shaped structures, the upper portion of the piston seat is fixed to the opening of the second cavity, the lower portion of the piston is movably sleeved in the piston seat, the upper portion of the piston is movably sleeved in the second cavity, and sealing rings are disposed between the upper portion of the piston and the inner wall of the piston seat, and between the lower portion of the piston and the inner wall of the second cavity, and the spring is disposed in the second cavity outside the piston and the piston seat. By means of the pressure control device, when the trigger switch is turned on, the piston jacked by compressed gas is controlled through the action force of the spring, the second valve spool of the gas cylinder switch is forced to move downwards to remove the sealing of the first cavity and the second cavity, and the gas cylinder switch continuously reciprocates under the action of the gas pressure of the gas cylinder to realize the conduction of the gas charging channel.

In some specific embodiments, the lower end face of the piston is provided with a recessed structure, and the recessed structure is provided with an inclined hole at a position far away from the gas cylinder switch, and the inclined hole is communicated with the hollow opening of the upper part of the piston. Rely on this setting can avoid the second case of gas cylinder switch, avoid the second case to block up the air flue, simultaneously, the setting of sunk structure can be about to use up at the gas in the gas cylinder, and when the piston was unable jack-up, the residual pressure in the gas cylinder was arranged in the help.

Compared with the prior art, the beneficial results of the invention are as follows:

the inflatable structure in this application utilizes the configuration that sets up first case and elastic element on switching on the cavity on the trigger switch, has realized switching on when the contact cooperation, and confined automatic triggering function when the disconnection cooperation, user need not additionally to control at the inflation in-process and aerifys the switch, convenient operation. In addition, through the gas cylinder switch in two cavities that set up in the relief pressure valve, and the pressure control device who has piston spring structure, after the gas cylinder assembles on gas cylinder switch, through compressed gas jack-up piston and block the intercommunication between two cavities through the case sealing member, trigger switch switches on cavity and piston inner channel intercommunication after inflating the counterpart piece cooperation, the piston can reciprocating motion under the effort of spring, constantly push down the second case in the gas cylinder switch, make the gas cylinder gassing, thereby can also change the pressure of giving vent to anger through the cooperation size change spring stroke of adjusting piston seat and first cavity, the stable in structure is reliable, and it is more simple and convenient to trigger the operation.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and together with the description serve to explain the principles of the invention. Other embodiments and many of the intended advantages of embodiments will be readily appreciated as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale relative to each other. Like reference numerals designate corresponding similar parts.

FIG. 1 is a schematic cross-sectional view of an inflatable structure according to an embodiment of the invention;

FIG. 2 is a schematic diagram of a trigger switch according to a specific embodiment of the present invention;

FIG. 3 is a cross-sectional schematic view of a trigger switch according to a specific embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a trigger switch according to a second embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a trigger switch according to a second embodiment of the present invention;

fig. 6 is a schematic structural view of a trigger switch according to a third specific embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of a pressure relief valve according to a particular embodiment of the present invention.

The meaning of each number in the figure: 100-trigger switch, 101-first valve core, 1011-air outlet hole, 1012-annular protrusion, 102-switch body, 1021-minimum caliber of conduction cavity, 103-first sealing ring, 104-first valve core spring, 105-second sealing ring, 200-pressure reducing valve, 201-pressure reducing valve body, 2011-first cavity, 2012-second cavity, 202-piston seat, 203-spring, 204-piston, 2041-connecting hole, 2042-inclined hole, 2043-groove, 205-second valve core, 2051-second valve core spring, 206-valve core sealing element, 207-switch valve seat, 208-piercing element, 209-gas cylinder sealing gasket, 210-gas cylinder fixing seat and 300-gas cylinder.

Detailed Description

In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. In this regard, directional terminology, such as "top," "bottom," "left," "right," "up," "down," etc., is used with reference to the orientation of the figure(s) being described. Because components of embodiments can be positioned in a number of different orientations, the directional terminology is used for purposes of illustration and is in no way limiting. It is to be understood that other embodiments may be utilized and logical changes may be made without departing from the scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

The present invention provides a gas filling structure, and fig. 1 is a schematic sectional view of the gas filling structure according to an embodiment of the present invention, and as shown in fig. 1, the gas filling structure includes a trigger switch 100, a pressure reducing valve 200, and a gas cylinder 300, wherein the trigger switch 100 is disposed on the pressure reducing valve 200, and the gas cylinder 300 is disposed inside a lower portion of the pressure reducing valve 200. The trigger switch 100 comprises a first valve core 101 and a switch body 102, a hollow conduction cavity is arranged inside the switch body 102, the first valve core 101 is movably arranged in the hollow conduction cavity inside the switch body 102, the conduction of the conduction cavity can be blocked when the first valve core 101 moves in the conduction cavity, the trigger switch 100 can be used as a switch for controlling the on-off of the switch while serving as an air outlet structure, an additional operation control switch is not needed during use, the air inflation operation is simplified, and the use is convenient.

In a specific embodiment, the pressure reducing valve 200 includes a pressure reducing valve body 201, two upper and lower cavities are provided inside the pressure reducing valve body 201, the two cavities are connected through a communication hole, wherein, the upper cavity is used for setting a pressure control structure, the lower cavity is provided with a gas cylinder switch structure, the gas cylinder switch structure cooperates with the gas cylinder 300 to obtain the compressed gas in the gas cylinder, the gas cylinder switch structure cooperates with the pressure control structure alternately each other to make the compressed gas in the gas cylinder pass through the gas cylinder switch structure, the communication hole, the pressure control structure and the conducting cavity of the trigger switch 100 and spray out from the gas outlet of the first valve core 101.

Fig. 2 shows a schematic structure of a trigger switch according to a specific embodiment of the present invention, and as shown in fig. 2, the first valve core 101 of the trigger switch 100 extends out of the upper end surface of the switch body 102, and an air outlet 1011 is formed at the upper end of the first valve core 101 extending out of the switch body 102. Referring to fig. 3, a cross-sectional view of a trigger switch according to an embodiment of the present invention is shown, in which an upper portion of a conducting cavity in a switch body 102 has a diameter larger than a lower portion of the conducting cavity, a communicating portion of the upper portion and the lower portion of the conducting cavity has a minimum diameter 1021 of the conducting cavity, and the minimum diameter 1021 of the conducting cavity is in transitional connection with the lower portion of the conducting cavity through a tapered surface. The first valve core 101 is of a columnar structure, two annular protrusions 1012 are arranged on the circumferential surface of the upper portion of the first valve core 101, and the size of the two annular protrusions 1012 is equivalent to the size of the diameter of the upper portion of the conducting cavity, so that the first valve core 101 can stably move up and down in the conducting cavity without shaking. The annular groove formed between the two annular protrusions 1012 is used to place the sealing ring 103 to seal between the upper portion of the first valve spool 101 and the upper portion of the communication cavity. The lower part of the first valve core 101 has a size smaller than the minimum caliber 1021 of the conducting cavity, so that the lower part of the first valve core 101 can penetrate through the minimum caliber 1021 of the conducting cavity, and gas can pass through a gap between the lower part and the conducting cavity, an annular groove is formed in the surface of the lower part of the first valve core 101 and used for placing a sealing ring 105, the size of the sealing ring 105 is larger than the minimum caliber 1021 of the conducting cavity, and the blocking of the minimum caliber 1021 of the conducting cavity can be realized through the conical surface matching of the sealing ring 105 and the lower part of the minimum caliber 1021 of the conducting cavity. A spring 104 is arranged below the two annular protrusions 1012, one end of the spring 104 is matched with the bottom surface of the upper part of the conducting cavity, the other end of the spring 104 is matched with the lower part of the two annular protrusions 1012 of the first valve core 101, and the first valve core 101 is jacked upwards so that the sealing ring 105 at the lower part of the first valve core 101 is always positioned at the position for blocking the minimum caliber 1021 of the conducting cavity. Alternatively, the spring 104 may be another elastic element, and as long as the first valve core 101 can be lifted upwards so that the sealing ring 105 at the lower portion of the first valve core 101 is always located at the position of blocking the minimum aperture 1021 of the conducting cavity, the technical effect of the present invention can be achieved.

In a specific embodiment, the upper portion of the first valve core 101 is hollow, and radial holes communicated with the hollow structure of the upper portion are opened below the two annular protrusions 1012, so that the upper portion of the through cavity is always communicated with the outside. When the first valve core 101 is in abutting press fit with an external inflating opponent, the first valve core 101 downwards compresses the spring 104, the sealing ring 105 does not block the minimum caliber 1021 of the communicated cavity, and air communicated with the cavity at the lower part of the cavity can be ejected through the minimum caliber 1021 of the communicated cavity, the upper part of the communicated cavity, radial holes below two annular bulges 1012 of the first valve core 101, a hollow structure at the upper part of the first valve core 101 and an air outlet 1011, so that the inflating action is realized; when the first valve core 101 leaves the inflating hand piece, the first valve core 101 is jacked up upwards under the action of the spring 104, the sealing ring 105 is matched with the conical surface below the minimum caliber 1021 of the conducting cavity to block the minimum caliber 1021 of the conducting cavity, sealing is achieved, and internal gas leakage is prevented. This trigger switch simple structure, trigger mechanism directly set up in giving vent to anger structurally, will cooperate as the trigger condition, need not to adopt other control switch again, has simplified the operation flow of aerifing, convenient to use person's operation more. The first valve core 101 of the structure is small in size, when the first valve core 101 is matched with an inflating counterpart member, rapid inflation can be achieved through the matching of the first valve core 101 and an inflating port provided with a sealing ring on the counterpart member, resistance when the first valve core 101 is pulled out and inserted is small due to the small structure, and operation is easy.

With continued reference to fig. 4, fig. 4 shows a schematic structural diagram of a trigger switch according to a second embodiment of the present invention, and as shown in the cross-sectional diagram of the trigger switch according to the second embodiment of the present invention shown in fig. 5, the first valve core 101 ' of the trigger switch 100 also extends out of the upper end surface of the switch body 102, the head of the first valve core 101 ' of the structure is a cross structure, the inner conducting cavity of the switch body 102 ' is divided into an upper cavity and a lower cavity, the caliber of the upper cavity is smaller than that of the lower cavity, and the two cavities are transitionally connected by a conical surface, the cross structure on the upper part of the first valve core 101 ' has the same diameter size as that of the upper conducting cavity, a gap between the cross structure and the conducting cavity can be used for communicating the outside with the conducting cavity, an annular groove is arranged below the cross structure of the first valve core 101 ', the valve core is used for placing a sealing ring 105 ', the sealing ring 105' can be matched with a conical surface between the two cavities to seal the two cavities, the lower part of the first valve core 101 'is provided with a spring 104', and the other end of the spring 104 'is abutted with a matching piece at the bottom of the switch body 102' (not shown in the figure and can be abutted with a matching surface of a piston seat of a pressure reducing valve structure) so as to jack the first valve core 101 'upwards to enable the sealing ring 105' at the lower part of the first valve core 101 to be always at a position for blocking and conducting the upper cavity and the lower cavity of the cavity. In some other embodiments, the first valve core 101 'may also adopt a structure other than the upper portion of the cross-shaped structure (for example, a cylindrical structure having a gap with the upper portion of the through cavity), and only when the first valve core 101' is matched with the inflating counterpart element to be pressed down, the upper cavity and the lower cavity of the through cavity can be communicated, and the technical effect of the present invention can also be achieved. When the trigger switch with the structure is inflated, the first valve core 101' is difficult to seal with an inflating hand piece, and the sealing structure needs to be arranged on the switch body (such as the outer surface of the switch body), so that the resistance of insertion and matching can be larger relative to the first valve core 101 in fig. 2 and 3, and the larger size of the switch body can also enable the matching to be more stable and reliable, and the trigger switch is suitable for inflating operation with larger pressure.

Fig. 6 is a schematic structural diagram of a trigger switch according to a third specific embodiment of the present invention, and as shown in fig. 6, the trigger switch may not be directly disposed on the pressure reducing valve, but the first valve element 101 and the switch body 102 are disposed on a connecting piece 106, and the connecting piece 106 is externally disposed outside the pressure reducing valve through an air pipe 107. The structures of the first valve core 101 and the switch body 102 of the trigger switch with the structure can be adaptively adjusted according to the structures of the embodiments in fig. 2 and 3 or fig. 4 and 5, but the general principles are consistent, and are not described herein again, the technical effects of the invention can also be achieved, and the arrangement of the large gas cylinder can reduce the period of gas cylinder replacement, and is suitable for frequent gas charging operation for a long time.

Fig. 7 shows a schematic cross-sectional view of a pressure reducing valve according to a specific embodiment of the present invention, as shown in fig. 7, a pressure reducing valve body 201 of a pressure reducing valve 200 includes a first cavity 2011 and a second cavity 2012 from bottom to top, the first cavity 2011 and the second cavity 2012 are communicated through a communication hole, the first cavity 2011 is used for providing a gas cylinder switch structure, the gas cylinder switch structure includes a second valve element 205, a valve element sealing element 206, a switch valve seat 207, a piercing element 208, a gas cylinder gasket 209, and a gas cylinder fixing seat 210, an upper cavity of the first cavity 2011 is a smaller-diameter cavity, a lower cavity is a larger-diameter cavity, an inner surface of the lower cavity is provided with an internal thread, the switch valve seat 207 and the gas cylinder fixing seat 210 are provided with corresponding external thread structures, the switch valve seat 207 is a T-shaped structure corresponding to upper and lower portions of the first cavity 2011, an upper end surface of the switch valve seat 207 is provided with a groove for accommodating the valve element sealing element 206, the depth of the groove is lower than the height of the valve core sealing element 206, the valve core sealing element 206 is pressed on the upper end face of the first cavity 2011 by matching the external thread of the switch valve seat 207 with the internal thread of the lower cavity, the middle of the valve core sealing element 206 is provided with a through hole corresponding to the communicating hole between the first cavity 2011 and the second cavity 2012, the through hole is of a structure with a small upper part and a large lower part, and the upper part and the lower part are in transition connection through conical surfaces. The recess that is used for holding piercing part 208 is offered to switch valve seat 207's lower part terminal surface, the degree of depth of this recess highly matches with piercing part 208's head, piercing part 208 is T shape structure, the lower part is provided with a convergent toper structure, and the middle part runs through there is a through-hole, be used for inserting the inside gas of gas cylinder derivation gas cylinder, piercing part's toper lower part surface is located to gas cylinder sealing gasket 209 cover, and sticis in switch valve seat 207's lower part terminal surface with gas cylinder sealing gasket 209 and piercing part 207 through the gas cylinder fixing base, rely on switch valve seat 207 and the gas cylinder fixing base 210 to be provided with corresponding complex external screw thread structure, can realize dual locking on same screw thread, the supplementary inner structure that prevents pine and take off. In a preferred embodiment, a gas purification device 211 can be disposed between the piercing element 208 and the groove of the switch valve seat 207, the gas purification device 211 can be a filter screen, a microporous filter, etc., when the gas source is, for example, carbon dioxide, the gas cylinder is in a liquid state, when the gas cylinder releases pressure, the gas purification device can be used to reduce the liquid gas from entering the cavity of the pressure reducing valve, the gas purification device can reduce the injection speed of the initial high-pressure gas (liquid), and the gas pressure entering the main pressure reducing chamber can be more uniform through the microporous structure of the gas purifier. The gas cylinder fixing seat 210 is of a hollow structure, a lower cavity of the hollow structure is used for being matched with a gas cylinder head, and an annular groove is further formed in the lower cavity and used for placing a sealing ring to achieve sealing matching with the gas cylinder head.

In a specific embodiment, an annular groove for placing a sealing ring is formed at a matching position of the upper portion of the switch valve seat 207 and the upper portion of the first cavity 2011, so that sealing between the switch valve seat 207 and the first cavity 2011 is realized, gas leakage is further prevented, and the sealing performance of the whole inflation structure is improved. The middle of the switch valve seat 207 is provided with a through hole, the hole diameters of the valve core sealing element 206 and the puncture piece 208 arranged at the upper end and the lower end are smaller than the middle through hole of the switch valve seat 207, the second valve core 205 is arranged in the through hole, so that the second valve core 205 can move between the valve core sealing element 206 and the puncture piece 208 in the through hole, the second valve core 205 is of a cylindrical structure, an annular bulge is arranged at the bottom close to the cylindrical structure, the annular bulge is equivalent to the hole diameter of the middle through hole of the switch valve seat 207, at least one notch is arranged on the annular bulge to ensure that the middle through hole of the switch valve seat 207 is always communicated, a spring 2051 is arranged at the bottom of the annular bulge, the bottom of the spring 2051 is abutted to the puncture piece 208 and presses the second valve core 205 to the valve core sealing element 206, the diameter of the upper part of the cylindrical structure of the second valve core 205 is slightly smaller than the lower part, and the conical surface is transited, and the conical surface can be abutted to block the communication hole between the first cavity 2011 and the second cavity 2012 The upper diameter of the cylindrical structure of the second spool 205 is slightly smaller than the middle through hole of the spool seal 206, so that gas can pass through the gap between the two.

In a specific embodiment, a pressure control structure is arranged inside the second cavity 2012, and the pressure control structure includes a piston seat 202, a large spring 203 and a piston 204, where the piston seat 202 and the piston 204 are both T-shaped structures, the head of the piston seat 202 is fixedly matched with the mouth of the second cavity 2012, specifically, the matching between the two can be fixed by fastening matching of threaded connection, the lower part of the piston seat 202 is a columnar structure smaller than the inner diameter of the second cavity 2012, a stepped hole is arranged at the center of the piston seat 202, an upper opening is used for matching with the switch body 102 of the trigger switch 100, and the upper opening can be realized by threaded fastening matching, so as to facilitate assembly and disassembly; the lower opening is adapted to receive the lower portion of the piston 204, and the inner wall of the lower opening is further provided with an annular groove for placing a sealing ring for ensuring the sealing of the piston 204 during its movement inside the piston seat 202. The diameter of the head of the piston 204 is comparable to the inner diameter of the second chamber 2012, and the circumferential surface of the head of the piston 204 is provided with an annular groove in which a gasket is disposed to ensure the tightness of the second chamber 2012 between the lower portion of the piston 204 and the head. The piston 204 is inverted, the head of the piston 204 is arranged at the bottom of the second cavity 2012, the lower part of the piston is inserted into the lower opening of the piston seat 202, the large spring 203 is sleeved in the second cavity 2012 between the head of the piston seat 202 and the head of the piston 204, and the piston 204 is pressed against the bottom of the second cavity 2012. Be provided with a trompil 2041 in the lower part cylinder of piston 204, be provided with the inclined hole 2042 with trompil 2041 intercommunication in the head of piston 204, the head terminal surface of piston 204 is provided with a recess 2043, inclined hole 2043 is located the terminal surface of recess 2043 at the head export of piston 204, the second case 205 that stretches out the intercommunicating pore between first cavity 2011 and the second cavity 2012 can be avoided in the setting of inclined hole 2042, prevent that the inside pipeline of piston 204 is blockked up to second case 205, the setting of recess 2043 can avoid inclined hole 2043 unable and first cavity 2011 and second cavity 2012 between the intercommunicating pore when piston 204 is pressed to second cavity 2012 bottom by big spring 203 to lead to unable normal giving vent to anger. The groove 2043 can also help to discharge residual pressure in the gas cylinder when the gas in the gas cylinder is about to be used up and the piston cannot be jacked up. In some other embodiments, the inclined holes 2042 may also be provided as a plurality of inclined holes with appropriate hole diameters evenly distributed on the circumference of the end face of the groove 2043, so that the pressure is more balanced when conducting.

In a specific embodiment, a plurality of grooves are formed in the circumferential surface of the head of the piston seat 202, so that when the piston seat 202 is matched with the second cavity 2012, the upper portion of the second cavity 2012 can be communicated with the outside through the grooves to assist the piston 204 in air intake or exhaust in the reciprocating process, and the problem that the reciprocating motion of the piston 204 is influenced because the upper portion of the second cavity 2012 is sealed to cause the piston 204 to do work on the cavity of the upper portion of the second cavity 2012 during the reciprocating motion is avoided. The groove bodies can also be used as assembly clamping positions, so that the piston seat 202 can be conveniently disassembled and assembled, and the compression stroke of the large spring 203 can be finely adjusted by utilizing the groove bodies, so that the air outlet pressure is changed. An exhaust hole can be formed in the upper side wall of the second cavity 2012, and the technical effect of the present invention can also be achieved. In some preferred embodiments, the vent hole formed in the upper side wall of the second cavity 2012 can also be used as a safety pressure relief hole, when the pressure relief valve is closed, if the gas cylinder switch valve in the cavity fails (cannot be sealed), at this time, the excessive pressure can completely jack up the piston 204, so that the sealing ring at the head of the piston 204 passes through the hole, and high-pressure gas in the cavity can be relieved through the hole, thereby avoiding the danger caused by opening the pressure relief valve under the unknowing condition.

The working principle of the pressure reducing valve structure is as follows: after the gas cylinder 300 is assembled on the gas cylinder fixing seat 210, the piercing member 208 pierces the plug of the gas cylinder head, the compressed gas inside the gas cylinder enters the through hole inside the switch valve seat 207 through the through hole inside the piercing member 208, at this time, the second valve core 205 is pressed on the conical surface structure of the valve core sealing member 206 under the action of the spring 2051, the top end of the second valve core 205 passes through the through hole between the first cavity 2011 and the second cavity 2012 and is exposed out of the bottom plane of the second cavity 2012, the big spring 203 inside the second cavity 2012 presses the piston 204 downwards, the bottom of the piston 204 transmits the pressing force to force the second valve core 205 to move downwards to contact with the closed gas passage, at this time, the compressed gas inside the gas cylinder 300 is injected into the second cavity 2012 to jack up the piston 204 (at this time, the trigger switch 100 is in a closed state), when the trigger switch 100 is matched with the inflating counter-hand member to open the gas outlet passage, the gas is led out through the gas outlet passage, the internal gas pressure is reduced, at this moment, the piston 204 will carry out reciprocating motion, namely the piston 204 constantly pushes down the second valve spool 205 to realize air release, after being jacked up by compressed gas, the big spring 203 pushes down again, realize continuously giving vent to anger, the compressive force of big spring 203 can be used as the regulation of control pressure of giving vent to anger, therefore the accessible is adjusted the compression stroke of big spring 203 and is carried out fine setting control to pressure of giving vent to anger, rely on this structure setting of fine setting control pressure of giving vent to anger, can control the pressure of giving vent to anger of gas structure, in the liquid operation is got in aerifing of grape wine, can adjust the gas pressure of joining in the beverage bottle as required, thereby can control the velocity of flow of wine. Compare in present gas filled structure valve body structure of getting wine usefulness complicated, can't adjust the inflation pressure, the gas filled structure of this application is reliable and stable, can finely tune the inside spring of pressure control structure through the cooperation of piston seat and relief pressure valve body, and then realize the fine setting to inflation pressure to rely on trigger switch's triggering and the integrative setting of structure of giving vent to anger, make whole gas filled operation simple and convenient controllable more.

It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present invention without departing from the spirit and scope of the invention. In this way, if these modifications and changes are within the scope of the claims of the present invention and their equivalents, the present invention is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps than those listed in a claim. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. Any reference signs in the claims shall not be construed as limiting the scope.

Claims

1. An inflatable structure, comprising:

the trigger switch comprises a first valve core and a switch body, wherein the first valve core is movably arranged in a conduction cavity in the switch body in a penetrating manner, a sealing ring with the minimum diameter larger than the conduction cavity is arranged on the first valve core, and an elastic element is arranged between the first valve core and the conduction cavity;

the pressure reducing valve comprises a pressure reducing valve body, wherein a first cavity and a second cavity which are communicated with each other are arranged in the pressure reducing valve body, a gas cylinder switch is arranged in the first cavity, a pressure control device is arranged in the second cavity, and a first channel communicated with the conducting cavity and the first cavity is arranged in the pressure control device;

the gas cylinder switch can extend out of the bottom of the second cavity to block the communication between the first cavity and the second cavity and press the pressure control device, and when the first valve core does not seal the conduction cavity, the pressure control device and the gas cylinder switch alternately interact to enable the conduction cavity, the first channel and the gas cylinder to be communicated.

2. An inflatable structure according to claim 1, wherein the upper portion of the first valve element protrudes beyond the surface of the switch body, and the resilient element comprises a spring.

3. The inflation structure of claim 2, wherein the minimum aperture of the through cavity is located at an upper portion of the through cavity, an air outlet gap exists between the upper portion of the first valve core and the upper portion of the through cavity, the sealing ring is disposed at a lower portion of the first valve core, and the elastic element is disposed at a bottom end of the first valve core.

4. An inflatable structure according to claim 2, wherein the minimum aperture of the conducting cavity is located at the lower part of the conducting cavity, an air outlet gap exists between the lower part of the first valve core and the minimum aperture of the conducting cavity, and the lower part of the first valve core passes through the minimum aperture of the conducting cavity and is provided with the sealing ring with a size larger than the minimum aperture at the other side.

5. The inflation structure of claim 4, wherein two annular protrusions with a size corresponding to the diameter of the upper portion of the through cavity are disposed in the middle of the first valve core, a second sealing ring is disposed in a groove between the two annular protrusions, the elastic element is disposed at the bottom of the lower annular protrusion, the upper portion of the first valve core is a hollow structure, and an opening communicated with the hollow structure is disposed below the lower annular protrusion.

6. The structure of claim 1, wherein the cylinder switch comprises a switch valve seat, a second valve element, a valve element sealing member and a piercing member, the second valve element is movably disposed in an inner cavity of the switch valve seat, the switch valve seat fixes the valve element sealing member to the top end of the first cavity, the piercing member is disposed at the other end of the switch valve seat opposite to the valve element sealing member, and a second elastic element is disposed at the bottom of the second valve element.

7. The inflation structure of claim 6, further comprising a gas cylinder sealing gasket and a gas cylinder fixing seat, wherein the gas cylinder sealing gasket is sleeved on the puncture member and is pressed on the end face of the switch valve seat through the gas cylinder fixing seat.

8. The inflation structure according to claim 7, wherein the switch valve seat and the gas cylinder fixing seat are both fixedly matched with the first cavity through a thread structure arranged on the first cavity, and a sealing ring is further arranged between the switch valve seat and the first cavity.

9. The inflation structure according to claim 1, wherein the pressure control device comprises a piston seat, a piston and a spring, the piston and the piston seat are both hollow T-shaped structures, the upper portion of the piston seat is fixed to the opening of the second cavity, the lower portion of the piston is movably sleeved in the piston seat, the upper portion of the piston is movably sleeved in the second cavity, sealing rings are arranged between the upper portion of the piston and the inner wall of the piston seat, and between the lower portion of the piston and the inner wall of the second cavity, and the spring is arranged in the second cavity outside the piston and the piston seat.

10. The inflation structure of claim 9, wherein the lower end face of the piston is provided with a recessed structure, and the recessed structure is provided with an inclined hole at a position far away from the gas cylinder switch, and the inclined hole is communicated with the hollow opening of the upper part of the piston.