Trigger device for inflating beverage packaging container

Abstract

The utility model relates to the technical field of liquid packaging containers, in particular to a triggering device for inflating a beverage packaging container. Comprising an air bag support and an air bag installed on the air bag support, and the air bag support is of a barrel-shaped structure with a cover plate at the upper end and an open lower end; an opening clamping ring is arranged at the lower end of the air bag bracket and is used for being clamped at the neck part of the air tank; the air bag is a columnar air bag matched with an inner cavity of the air bag support, the upper end of the air bag is connected to the cover plate, and a trigger clamping plate is arranged at the lower end of the air bag. According to the device, automatic pressure maintaining and cooling can be achieved by releasing gas in the gas tank, so that the temperature and the carbon dioxide content of beer in the barrel are kept at a proper level, and the taste of the drunk beer is improved; the sealed air bag detects the pressure in the barrel body and controls the action of the air tank at the same time, the action is reliable and free of leakage, and lubricating oil pollution can be eradicated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of liquid packaging container, more particularly to the trigger device for the aerating of beverage packaging container. BACKGROUND

[0002] Beer barrel is a kind of container for containing beer, usually used in large parties or multi-person dining. The original material uses wood, and modern packaging materials also use aluminum alloy, tinplate or plastic. According to the particularity of beer, the barrel body of beer barrel is usually tightly integrated and can withstand a certain pressure drum or spindle, the barrel valve is installed at the upper end of the barrel body, the barrel valve is connected with the filling machine during filling, beer is injected into the barrel body, and the barrel valve is connected with the wine lance during consumption, and the beer in the barrel body is discharged. For example, the applicant's another Chinese patent 2024213824348 discloses a fresh-keeping explosion-proof beer barrel, the publication number is CN222311401U, the barrel body is blow molded by PET, the upper end of the barrel body is provided with a barrel cover, the barrel cover includes a cover body fixedly connected at the opening of the barrel body, a wine lance arranged at the center of the cover body, the wine lance includes a valve cover installed at the center of the cover body, a core tube slidably inserted at the center of the valve cover, a large spring seat is installed at the lower end of the core tube, a large spring is arranged between the large spring seat and the valve cover, a valve hole is arranged at the center of the valve cover, a valve plate is fitted and installed in the valve hole, the upper end of the core tube is fixedly connected to the valve plate, and a pressure relief valve is installed at the center of the valve plate. The beer barrel does not need to change the production mold of the existing barrel body, and the pressure relief valve can be added on the PET beer barrel to limit the pressure within the upper limit of the barrel body pressure, and the risk of barrel explosion is eliminated. However, the function of the pressure relief valve of the beer barrel is limited to pressure relief and pressure reduction when the pressure in the barrel body increases due to changes in external temperature or shaking, impact, and cannot automatically supplement the pressure to maintain a certain pressure level when the pressure in the barrel body decreases. Beer barrel is usually used in large parties or multi-person dining, and the use time is relatively long and often needs to be stored for a period of time after drinking half of the beer, although the barrel body has enough pressure by injecting carbon dioxide gas after each filling in the production plant, but the consumer will take out a certain amount of beer and carbon dioxide every time through the wine lance, which will cause the pressure in the barrel body to decrease, affecting the taste of beer.

[0003] Another Chinese patent 2023223576848 discloses a kind of gas pressurization device of beverage container, authorized announcement No.CN220578916U, the device includes gas cylinder and top cover, gas cylinder is equipped with for controlling the cylindrical gas nozzle of gas outlet, piston is slidably arranged in top cover, trigger piece is arranged between piston and gas nozzle, piston can push gas nozzle to open by trigger piece, trigger piece includes annular body, body is sleeved and fixed on the outer circumferential surface of gas nozzle, body has two opposite and elastic pins on it, pin has limiting portion on it, limiting portion is abutted on the gas outlet end of gas nozzle for limiting the downward movement of body relative to gas nozzle.Gas pressure in container is reduced, trigger piece pushes control gas nozzle to act, gas cylinder is opened, to ensure that container maintains certain pressure.But the trigger piece in the device can only be inserted into cylindrical gas nozzle from the upper end of cylindrical gas nozzle when installation, the installation direction of trigger piece is consistent with the stress direction of trigger gas nozzle, it is easy to trigger gas cylinder to cause gas leakage by mistake.In addition, the piston mechanism for driving trigger piece to act in the device has the problems of loose sealing, gas leakage in piston causing malfunction, and lubricating oil in piston causing food contamination. SUMMARY

[0004] The utility model discloses a kind of trigger devices of packaging container aeration, avoid the problem that trigger piece is assembled by mistake, trigger piece driving mechanism is reliable and does not leak, eliminate lubricating oil pollution beer and other drinks.

[0005] The utility model discloses a kind of trigger devices of packaging container aeration, avoid the problem that trigger piece is assembled by mistake, trigger piece driving mechanism is reliable and does not leak, eliminate lubricating oil pollution beer and other drinks.

[0006] The utility model discloses a kind of trigger devices of packaging container aeration, avoid the problem that trigger piece is assembled by mistake, trigger piece driving mechanism is reliable and does not leak, eliminate lubricating oil pollution beer and other drinks.

[0007] By the scheme, the trigger device can automatically maintain pressure and reduce temperature by releasing gas in gas cylinder, sealed gas bag detects pressure in barrel body while controlling the action of gas cylinder, action is reliable and does not leak and can eliminate lubricating oil pollution.

[0008] Preferably, mounting hole is provided on the cover plate, and the upper end of the gas bag is fixedly provided with a connecting piece adapted to the mounting hole.

[0009] By the scheme, the assembly of gas bag and gas bag support can be facilitated, so that the assembled gas bag is in a working position capable of triggering gas cylinder.

[0010] Preferably, the mounting hole is a circular hole penetrating the cover plate, and two sides of the circular hole are symmetrically provided with grooves penetrating the cover plate; the connecting piece is a cylinder adapting to the mounting hole, and two sides of the upper end of the cylinder are symmetrically provided with protrusions, and the cross-sectional shape of the protrusions adapts to the grooves on the two sides of the mounting hole.

[0011] By the scheme, the air bag and the air bag support can be conveniently assembled, the installation of the air bag has directionality, and the mouth of the trigger clamping plate can be conveniently directed to the trigger rod of the air tank.

[0012] Preferably, the trigger clamping plate is perpendicular to the axis of the air bag, the center of the trigger clamping plate is provided with a clamping plate center hole, the diameter of the clamping plate center hole is smaller than that of the trigger rod, grooves adapting to the mouth of the trigger rod are arranged between the clamping plate center hole and the side of the trigger clamping plate, and the other side of the trigger clamping plate corresponding to the mouth is fixedly connected to the edge of the air bag through a support plate.

[0013] By the scheme, when the trigger clamping plate is assembled, the trigger clamping plate is clamped into the trigger rod of the air tank from the side, and air leakage caused by accidental triggering of the air tank can be avoided.

[0014] Preferably, the side wall of the air bag is a flexible bellows structure.

[0015] By the scheme, when the pressure in the barrel changes, the air bag generates axial extension and contraction movement.

[0016] Preferably, a spiral spring is arranged in the side wall of the air bag.

[0017] By the scheme, the reliability and accuracy of the action of the air bag can be improved.

[0018] Preferably, the upper end of the air bag support is connected to a wine spear clamping ring through a support upper extension segment, the wine spear clamping ring is arranged eccentrically with the air bag support, and the wine spear clamping ring is used for clamping the lower end of the wine spear.

[0019] By the scheme, the air bag support and the wine spear are connected together, the structure is compact, and the air bag support can be used with the existing wine spear.

[0020] Preferably, one side of the wine spear clamping ring is provided with a clamping ring lower extension segment extending downward, the clamping ring lower extension segment is parallel to the axis of the wine spear clamping ring, the lower end of the clamping ring lower extension segment is fixedly connected to the upper end of the air bag support, and the side surface of the clamping ring lower extension segment is fixedly connected to the support upper extension segment.

[0021] By the scheme, the air bag support is located on one side of the wine spear, and does not hinder the working use of the traditional wine spear.

[0022] With the above structure, the trigger device can automatically keep pressure and reduce temperature by releasing gas in the gas tank, so that the temperature and carbon dioxide content of the beer in the barrel can be kept at an appropriate level, and the taste of the beer can be improved. The sealed air bag detects the pressure in the barrel body and controls the action of the gas tank at the same time, so that the action is reliable and leakage-free, and lubricating oil pollution can be eliminated. In addition to being used in beer barrels, the device can also be used in packaging barrels of other sparkling drinks such as soda. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a sectional view of an embodiment of the present application.

[0024] Figure 2 is a sectional view of an air bag holder.

[0025] Figure 3 is a three-dimensional structure of the air bag holder.

[0026] Figure 4 is a three-dimensional structure of the air bag.

[0027] Figure 5 is a top view of the air bag holder cover plate.

[0028] Figure 6 is a plan view of the trigger card.

[0029] Figure 7 is a partial structure of the upper end of the gas tank.

[0030] Figure 8 is a schematic diagram of the trigger device and the gas tank in use.

[0031] Figure 9 is a schematic diagram of the trigger device installed in the beer barrel in use. DETAILED DESCRIPTION

[0032] The following description of at least one example embodiment is merely exemplary in nature and is in no way intended to limit the present application or its application or uses.

[0033] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and devices can be considered part of the specification.

[0034] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as a limitation. Thus, other examples of the example embodiments can have different values.

[0035] It should be noted that like reference numerals and letters refer to like items in the several views, and once an item is defined in one view, it need not be discussed further in subsequent views.

[0036] As Figure 1 shown, the trigger device for inflating the beverage packaging container comprises a gasbag holder 5 and a gasbag 4 installed on the gasbag holder 5.

[0037] As Figure 2 , Figure 3 shown, the gasbag holder 5 is a barrel-shaped structure with a cover plate 51 at the upper end and open at the lower end, which is integrally injection molded by a relatively hard material; the lower end of the gasbag holder 5 is provided with an open snap ring 53, which is a C-shaped ring structure, and the open snap ring 53 is used for clamping the neck of the gas cylinder 3 to connect the gasbag holder 5 and the gas cylinder 3 together.

[0038] As Figure 4 shown, the gasbag 4 is a cylindrical gasbag that fits the inner cavity of the gasbag holder 5, and when the gas pressure changes or is extruded by external force, the gasbag 4 will produce axial expansion and contraction. The upper end of the gasbag 4 is connected to the cover plate 51, and the lower end of the gasbag 4 is provided with a trigger clamping plate 42. When the gasbag 4 produces axial expansion and contraction, the position of the trigger clamping plate 42 at the lower end will be lowered or raised with the expansion and contraction of the gasbag 4.

[0039] There are various connection methods between the upper end of the gasbag 4 and the cover plate 51, and as an embodiment of the utility model, as Figure 3 , Figure 5 shown, the cover plate 51 is provided with a mounting hole 52; the mounting hole 52 is a circular hole penetrating the cover plate 51, and recesses 521 penetrating the cover plate 51 are symmetrically arranged on both sides of the circular hole; the mounting hole 52 and the recesses 521 symmetrically arranged on both sides thereof jointly constitute a special-shaped hole penetrating the cover plate 51. Four triangular stop blocks 57 are arranged around the special-shaped hole. Correspondingly, as Figure 4As shown, the upper end of the air bag 4 is fixedly provided with a connecting piece 41 matching the mounting hole 52, the connecting piece 41 is a cylinder matching the mounting hole 52, and the two sides of the upper end of the cylinder are symmetrically provided with protrusions 45, and the cross-sectional shape of the protrusions 45 matches the recesses 521 on the two sides of the mounting hole 52. In this way, the cross-sectional shape of the connecting piece 41 is the same as the shape of the special-shaped hole penetrating the cover plate 51, so that the connecting piece 41 can penetrate the cover plate 51 from bottom to top, and the upper end of the connecting piece 41 extends to the upper surface of the cover plate 51 together with the protrusions 45, and then only a certain angle is rotated to make the protrusions 45 deviate from the recesses 521 to prevent the connecting piece 41 from being separated from the mounting hole 52, and if the protrusions 45 deviate from the recesses 521 and pass one stop block 57 and are clamped between two stop blocks 57, the connecting piece 41 can be positioned and prevented from rotating loose. Of course, as other embodiments of the utility model, other structural forms can also be used to connect the air bag 4 and the air bag support 5 together.

[0040] As described above, the air bag 4 is a columnar air bag matching the inner cavity of the air bag support 5, is made of plastic with good toughness, and the upper and lower ends of the air bag 4 are end covers composed of plastic sheets with hard texture, and the side wall of the air bag 4 is a flexible bellows structure, and a spiral spring can also be arranged in the side wall of the air bag 4 to improve the reliability of the air bag action.

[0041] The trigger device for inflating the beverage packaging container cooperates with the gas tank 3, in order to supplement the carbon dioxide loss in beer, the gas tank 3 stores high-pressure carbon dioxide or dry ice, of course, other gases can also be stored in the gas tank 3 according to needs. Figure 7 As shown, the upper end of the gas tank 3 is provided with a neck ring 32 for mounting the air bag support 5, the neck ring 32 is a convex annular structure, the junction between the outer ring of the neck ring 32 and the tank body forms a concave neck clamping groove, and the center of the neck ring 32 is provided with a press-type gas tank valve, and the hollow trigger lever 31 is mounted on the press-type gas tank valve, and the structures of the press-type gas tank valve and the gas tank body are both prior art, which will not be described in detail here.

[0042] When there is no external force, the press-type gas tank valve is closed, and the gas in the gas tank will not leak; the trigger lever 31 is pressed, the press-type gas tank valve is opened, and the gas in the gas tank will be released through the hole in the center of the trigger lever 31. When the gas tank 3 releases carbon dioxide into the barrel body 1, not only can carbon dioxide be supplemented into beer, but also beer can be cooled through gas expansion to improve the taste of beer.

[0043] The lower end of the air bag holder 5 is provided with an open clasp 53 which is adapted to the neck clasp of the neck of the gas cylinder 3. The open clasp 53 is integrally injection molded with the air bag holder 5, perpendicular to the axis of the air bag holder 5, the inner diameter of the open clasp 53 is adapted to the neck clasp of the gas cylinder 3, so that the open clasp 53 can be stably clamped on the neck clasp, the opening of the open clasp 53 is slightly smaller than the diameter of the neck clasp, so that it can be clamped into the neck clasp under certain external force, and it will not easily fall off. The side wall of the air bag holder 5 above the open clasp 53 is provided with a gap 58 which allows the gas cylinder 3 to move in and out, and when the open clasp 53 is aligned with the neck clasp of the neck of the gas cylinder 3, the gap 58 can move the gas cylinder 3 horizontally to move the upper end of the gas cylinder 3 from the outside of the air bag holder 5 to the inner cavity of the air bag holder 5.

[0044] In addition, the lower end of the air bag 4 is provided with a trigger clamping plate 42 which is adapted to the trigger rod 31 on the gas cylinder 3.

[0045] The trigger clamping plate 42 is perpendicular to the axis of the air bag 4, and the air bag 4 expands and contracts along the axis direction to move the trigger clamping plate 42. As shown in Figure 6 The center of the trigger clamping plate 42 is provided with a clamping plate center hole 43, the diameter of the clamping plate center hole 43 is smaller than the outer diameter of the trigger rod 31, but the edge of the clamping plate center hole 43 is provided with a gap 431 which can expand and clamp on the trigger rod 31; the gap 431 is provided with a clamping hole 432 which is adapted to the trigger rod 31 between the clamping plate center hole 43 and the side of the trigger clamping plate 42, the diameter of the clamping hole 432 is slightly smaller than the outer diameter of the trigger rod 31 and is symmetrical to the position of the gap 431. After the air bag 4 is installed on the air bag holder 5, the position of the trigger clamping plate 42 is opposite to the gap 58 at the lower end of the air bag holder 5, and its position is slightly higher than the open clasp 53, and the clamping hole 432 is aligned with the trigger rod 31, so that the trigger rod 31 can slide into the clamping plate center hole 43 by slightly applying force, and the trigger clamping plate 42 is positioned on the trigger rod 31.

[0046] As shown in Figure 4 , Figure 6 The other side of the trigger clamping plate 42 corresponding to the clamping hole 432 is fixedly connected to the edge of the air bag 4 by a support plate 44.

[0047] As shown in Figure 2 , Figure 3 The upper end of the air bag holder 5 is connected to a wine spear clasp 55 through a holder upper extension 54, the wine spear clasp 55 is eccentrically arranged with the air bag holder 5, the axis of the wine spear clasp 55 is deviated to one side of the air bag holder 5, the wine spear clasp 55 is provided with a clasp buckle 551 which is used for clamping on the lower end of the wine spear, the clasp buckle 551 is adapted to the clamping groove provided on the outer wall of the wine spear. When assembling, the wine spear clasp 55 is sleeved on the lower end of the wine spear until the clasp buckle 551 is clamped into the clamping groove on the outer wall of the wine spear, as shown in Figure 7As shown, after the wine spear clasp ring 55 is installed, the extension tube 8 connected to the lower end of the wine spear is still located on the central axis of the wine spear, and the air bag support 5 is deviated to one side, which does not affect the normal use of the wine spear.

[0048] In addition, as Figure 3 As shown, one side of the wine spear clasp ring 55 is provided with a clasp lower extension section 56 extending downward, which is also a semicircular arc shape, firm in structure and small in space occupation. The clasp lower extension section 56 is parallel to the axis of the wine spear clasp ring 55, the lower end of the clasp lower extension section 56 is fixedly connected to the upper end of the air bag support 5, and the side surface of the clasp lower extension section 56 is fixedly connected with the support upper extension section 54.

[0049] As Figure 7 , Figure 8 As shown, in use, the trigger device is installed on the wine spear of the beer barrel together with the gas tank 3. The beer barrel includes a barrel body 1, which can be blow molded from PET plastic, or made of thin aluminum alloy or tinplate. The upper end of the barrel body 1 is provided with a barrel cover, and the inner cavity of the barrel body 1 is provided with an extension tube 8 extending from the barrel cover to the bottom of the barrel body 1. The barrel cover includes a cover body 2 fixedly connected to the opening of the barrel body 1, and a wine spear arranged at the center of the cover body 2. The wine spear is a tapping valve of the beer barrel, which is used for tapping the beer barrel. There are various structural forms in the prior art, and each wine spear can be used with a corresponding dispenser to achieve the purpose of tapping. The structure and working principle are prior art, which will not be described one by one here.

[0050] First, the air bag support 5 is installed at the lower end of the wine spear 21 through the wine spear clasp ring 55, and then the air bag 4 is installed on the air bag support 5 through the connecting piece 41. The lug 45 on the connecting piece 41 is clamped between the two stop blocks 57 by rotating the air bag 4, at this time the position of the air bag 4 is fixed, and the clamping opening 432 on the trigger clamping plate 42 at the lower end of the air bag 4 faces the gap 58 at the lower end of the air bag support 5. At this time, the clamping opening 432 on the trigger clamping plate 42 is parallel to and consistent with the opening clasp 53 on the air bag support 5, and the position of the trigger clamping plate 42 is slightly higher than that of the opening clasp 53. The neck clamping groove of the gas tank 3 is aligned with the opening clasp 53, the root of the trigger lever 31 of the gas tank 3 is aligned with the clamping opening 432 on the trigger clamping plate 42, the gas tank 3 is horizontally moved, the opening clasp 53 is clamped into the neck clamping groove, and the trigger clamping plate 42 is clamped into the root of the trigger lever 31, so that the installation of the gas tank 3 is completed. When the gas tank 3 is installed, the trigger lever 31 will be subjected to horizontal cutting force of the trigger clamping plate 42, and there is no longitudinal pressure, so there is no problem of leakage of the gas tank 3 caused by misoperation.

[0051] After the wine spear with the gas tank 3 is installed to the barrel 1, like the common production process, the beer and carbon dioxide are injected into the barrel 1 through the wine spear, so that the pressure in the barrel 1 gradually increases. The pressure in the barrel 1 increases, causing the air bag 4 to compress, and the position of the trigger plate 42 at the lower end of the air bag 4 to be lifted. At this time, since the gas tank 3 is in a closed state, the trigger rod 31 is at the upper dead point, and the trigger rod 31 will not move when the position of the trigger plate 42 is lifted. The trigger plate 42 rubs against the outer wall of the trigger rod 31, and until the pressure in the barrel 1 reaches a preset value, the trigger rod 31 is separated from the center hole 43 of the trigger plate 42, and the center hole 43 is located directly above the trigger rod 31. Under the condition that the pressure in the barrel 1 is maintained stable, the trigger plate 42 is always located directly above the trigger rod 31, and the gas tank 3 will not be triggered.

[0052] When the consumer drinks beer, the beer is output through the valve connected to the wine spear, causing the pressure in the barrel 1 to decrease; the decrease of the pressure in the barrel 1 causes the air bag 4 to expand, and the position of the trigger plate 42 to be lowered. When the pressure decreases to the lower limit, the trigger plate 42 with the lowered position will press the trigger rod 31 of the gas tank 3, open the valve of the gas tank, and release carbon dioxide into the barrel 1 through the hole in the center of the trigger rod 31. Since the diameter of the center hole 43 of the trigger plate 42 is smaller than the outer diameter of the trigger rod 31, the trigger plate 42 can push the trigger rod 31 downward when the position of the trigger plate 42 is lowered, and will not be sleeved on the trigger rod 31. In addition, when the trigger plate 42 presses the trigger rod 31, the center hole 43 is aligned with the hole in the center of the trigger rod 31, avoiding the blockage of the carbon dioxide channel.

[0053] The release of carbon dioxide from the gas tank 3 into the barrel 1 causes the pressure in the barrel 1 to increase and the temperature to decrease. When the pressure in the barrel 1 returns to the preset value, the air bag 4 contracts, the position of the trigger plate 42 is lifted, the trigger rod 31 is released, the trigger rod 31 returns to the original position, the gas tank 3 is closed again, and waits for the next working cycle.

[0054] Although some specific embodiments of the present application have been described in detail above with specific embodiments, those skilled in the art should understand that the above examples are only for illustration, and are not intended to limit the protection scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The protection scope of the present application is defined by the appended claims.

Claims

1. A triggering device for inflating beverage packaging containers, comprising an airbag support (5) and an airbag (4) mounted on the airbag support (5), characterized in that, The airbag support (5) is a barrel-shaped structure with a cover plate (51) at the upper end and an open lower end; the lower end of the airbag support (5) has an open retaining ring (53), which is used to be snapped into the neck of the air tank (3), and a notch (58) is provided on the side wall of the airbag support (5) above the open retaining ring (53); the airbag (4) is a cylindrical airbag that fits into the inner cavity of the airbag support (5), the upper end of the airbag (4) is connected to the cover plate (51), and the lower end of the airbag (4) is provided with a trigger plate (42).

2. The triggering device for inflating beverage packaging containers according to claim 1, characterized in that, The cover plate (51) is provided with mounting holes (52), and the upper end of the airbag (4) is fixedly provided with a connector (41) adapted to the mounting holes (52).

3. The triggering device for inflating beverage packaging containers according to claim 2, characterized in that, The mounting hole (52) is a circular hole that penetrates the cover plate (51), and grooves that penetrate the cover plate (51) are symmetrically arranged on both sides of the circular hole; the connector (41) is a cylinder that fits the mounting hole (52), and protrusions are symmetrically arranged on both sides of the upper end of the cylinder, and the cross-sectional shape of the protrusions fits the grooves on both sides of the mounting hole (52).

4. The triggering device for inflating beverage packaging containers according to claim 1, 2, or 3, characterized in that, The trigger plate (42) is perpendicular to the axis of the airbag (4). The center of the trigger plate (42) is provided with a central hole (43). The diameter of the central hole (43) is smaller than the outer diameter of the trigger rod (31). A slot for the trigger rod (31) is provided between the central hole (43) and the side of the trigger plate (42). The other side of the trigger plate (42) corresponding to the slot is fixedly connected to the edge of the airbag (4) by a support plate (44).

5. The triggering device for inflating beverage packaging containers according to any one of claims 1-3, characterized in that, The upper end of the airbag support (5) is connected to the wine spear retaining ring (55) through the upper extension section (54) of the support. The wine spear retaining ring (55) is eccentrically set with the airbag support (5) and is used to be engaged with the lower end of the wine spear.

6. The triggering device for inflating beverage packaging containers according to claim 5, characterized in that, The wine spear retaining ring (55) has a downwardly extending retaining ring lower extension (56) on one side. The retaining ring lower extension (56) is parallel to the axis of the wine spear retaining ring (55). The lower end of the retaining ring lower extension (56) is fixedly connected to the upper end of the airbag bracket (5), and the side of the retaining ring lower extension (56) is fixedly connected to the upper extension (54) of the bracket.

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