CN110668383B

CN110668383B - Connecting structure of wine barrel and beer distribution device

Info

Publication number: CN110668383B
Application number: CN201910945608.4A
Authority: CN
Inventors: 邱迪林; 邱迪清
Original assignee: Taros Technology Co ltd
Current assignee: Taros Technology Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-09-24
Anticipated expiration: 2039-09-30
Also published as: CN110668383A

Abstract

The invention provides a connecting structure of a wine barrel and a beer distribution device, and belongs to the technical field of wine drinking equipment. It has solved the problem that leaks appears when current cask is connected with beer distributor under the inversion state. This cask and beer distributor's connection structure, the cask includes the staving, connection structure includes the wine lance, the wine lance includes the case, the cask is invertd and the wine lance can be dismantled with beer distributor and be connected, beer distributor includes vertical setting and is pipy apical core, the disk seat cup joints with the apical core mutually, and the apical core upwards pushes up the valve core lower extreme and is linked together through disk seat and staving inner chamber, circumference is equipped with and forms sealed sealing member with the disk seat side on the apical core side, the perpendicular distance of sealing member to apical core upper end is less than the perpendicular distance of valve core lower extreme to disk seat lower extreme when the disk seat is plugged up to the valve core. This connection structure of cask and beer distributor can avoid cask and beer distributor to appear leaking in the operation process of being connected.

Description

Connecting structure of wine barrel and beer distribution device

Technical Field

The invention belongs to the technical field of wine drinking equipment, and relates to a connecting structure of a wine barrel and a beer distribution device.

Background

The cask is an instrument for holding the beverage, and the bung hole department of general cask all is provided with the wine lance, is equipped with the case in the wine lance, and the case can be sealed with the internal beverage of cask, and beer distributor then can cooperate with the cask, can take out the beverage in the cask through the tap after being connected with the cask.

Although the patent document (application No. 02215402.7) discloses a draught beer soda beverage machine, which aims at how to press carbon dioxide into draught beer, the beverage machine also discloses a beverage machine, a storage tank and a matching structure of the beverage machine and the storage tank, wherein the beverage machine is provided with a faucet and a sleeve, the storage tank is positively placed in the beverage machine, the sleeve is inserted into the storage tank, draught beer can be taken out from the faucet when the faucet is opened, but because the storage tank is positively placed, the draught beer in the storage tank needs to be drawn out or pressed out, draught beer residues easily exist, therefore, the storage tank is easy to be inverted, and the inverted storage tank can enable the draught beer to fully flow out.

Because there is an assembly process when the storage tank is connected with the beverage machine, if invert the storage tank in this operation process, then lead to some draught beer to leak out easily in the assembly process, leak in order to prevent connecting the assembly process, and under the condition that current wine bucket had already existed the wine lance, the technical staff in the art thinks easily that make the wine lance be in encapsulated situation all the time in the storage tank inversion and with the connection process of beverage machine, open the wine lance again after connecting the assembly completion, in order to avoid connecting the assembly process and appear leaking, but opening the wine lance after connecting the assembly, need specific structure of opening, this will make overall structure complicated.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a connecting structure of a wine barrel and a beer distribution device, which is used for solving the problem of leakage when the existing wine barrel is connected with the beer distribution device in an inverted state.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a cask and beer distributor's connection structure, the cask includes the staving, connection structure is including setting up the wine lance in staving bung hole department, the wine lance is including being the tube-shape and the disk seat that is linked together with the staving inner chamber and setting up in the disk seat and can shutoff the case of disk seat under the spring action, and the cask is invertd and the wine lance can be dismantled with beer distributor and be connected, its characterized in that, beer distributor include vertical setting and be pipy apical core, the disk seat cup joints with the apical core mutually, and the apical core upwards pushes up the top and pushes up case lower extreme and be linked together through disk seat and staving inner chamber, circumference is equipped with and forms sealed sealing member with the disk seat side on the apical core side, the sealing member is less than the case vertical distance to the disk seat lower extreme when the apical core upper end is plugged up the disk seat to the valve core.

When the wine barrel is not connected with the beer distribution device, the valve core is sealed off the valve seat under the action of the spring, so that the wine barrel is in a normally closed state to seal the wine in the barrel body, when the wine barrel is inverted and connected to the beer distribution device, the valve core jacks the top core, the inner cavity of the barrel body, the valve seat and the top core are in a communication state, namely the wine barrel is in a normally open state, whether the wine is output or not is controlled by a faucet on the beer distribution device, because the wine barrel is in the inverted state and connected to the beer distribution device, and the valve core is in the normally open state, and simultaneously the valve seat and the top core are in a sleeving relation, a sealing element is arranged on the top core, a matching gap between the valve seat and the top core is sealed through the sealing element, leakage in the using process is avoided, further, because the valve core is in the closed state when the wine barrel is not connected with the beer distribution device, and the valve core is in the open state when the wine barrel is connected with the beer distribution device, the connection process with beer distributor after the cask is invertd promptly also is the process that the case was backed up to open by the knockout, for this application is injectd the position of sealing member, make the sealing member to the perpendicular distance of knockout upper end be less than the case and block up the perpendicular distance of case lower extreme to disk seat lower extreme when the disk seat, consequently in the cask is invertd the connection process, form to cup joint and the knockout has not been pushed up the case when the sealing member on the knockout and the valve seat form sealed relation, then the knockout just backs up the case, the sealing of disk seat and knockout is in the front promptly, the case is backed up the back, thereby avoided cask and beer distributor to appear leaking in connection operation process.

In foretell cask and beer distributor's connection structure, the upper end at the top core is established to the valve seat cover, the outside at the top core is established to the sealing member cover, and the medial surface formation of sealing member and valve seat is sealed. The disk seat diameter is great, and the cover is established on the apical core, and the cask is disposable equipment usually, can reduce its following cask loss with the sealing member setting on the apical core, and the cask is the operation object during connection simultaneously, consequently can guarantee the position precision of sealing member with the sealing member setting on the apical core, avoids different operators' different operation custom to lead to the sealing member position unstable, guarantees the leakproofness after connecting.

In foretell cask and beer distributor's connection structure, the sealing member includes the sealing washer, annular seal groove has been seted up to circumference on the top core lateral surface, the sealing washer cover is established in the seal groove, and the sealing washer protrusion seal groove and form sealedly with the disk seat medial surface. The sealing ring can be injectd to the spread groove in the connection process, guarantees the position precision and the stability of sealing ring to guarantee to connect the leakproofness between back top core and the disk seat, of course the sealing member also can adopt the seal cover, need not to set up the seal groove on the top core lateral surface this moment, the seal cover establish and the bonding on the top core lateral surface can.

In the connecting structure of the wine barrel and the beer distribution device, the top core comprises a pipe body and a plurality of pushing convex parts, the pushing convex parts are positioned on the upper end surface of the pipe body, the vertical distance between the top surface of the sealing part and the pushing convex part is smaller than the distance between the lower end of the valve core and the lower end of the valve seat when the valve core is blocked by the valve seat, a wine passing opening is formed between every two adjacent pushing convex parts, the pushing convex parts upwards push the valve core, and the pipe body is communicated with the valve seat through the wine passing opening. The arrangement of the pushing convex part and the wine passing opening enables wine in the barrel body to enter the top core through the valve seat and the wine passing opening after the valve core is pushed open by the top core, and the distance between the sealing element and the top pushing convex part is limited, so that the sealing element can be guaranteed to form sealing with the valve seat before the pushing convex part pushes the valve core, and leakage is avoided.

In the connecting structure of the wine barrel and the beer distribution device, the inner side surface of the valve seat is circumferentially provided with a step surface, the distance from the sealing element to the upper end surface of the pipe body is smaller than the distance from the step surface to the lower end of the valve seat, and the upper end surface of the pipe body is abutted against the step surface. Still can form the gas circuit in the wine lance for the wine bag in the extrusion bucket admits air, consequently the connecting process top core can also upwards push away the disk seat, thereby open the gas circuit, and the step face leans on also can carry on spacingly to pushing away the top convex part with body upper end counterbalance, guarantees that the case opens suitable aperture, and the sealing member is injectd to the distance between the body upper end, has also guaranteed that the sealing member has formed sealedly with the disk seat before body up end and step face support and lean on, avoids appearing leaking.

In foretell cask and beer distributor's connection structure, the wine lance is still including fixing the valve body in staving bung hole department, and above-mentioned disk seat sets up in the valve body, the lower extreme of valve body has the connecting portion of tube-shape, the spread groove has been seted up on the beer distributor, the through-hole has been seted up on the bottom surface of spread groove, and above-mentioned apical lamella stretches out from the through-hole, connecting portion peg graft in the spread groove and can dismantle the connection. The valve seat and the valve body are arranged in the valve body, an air passage is formed between the valve seat and the valve body, and the valve body is detachably connected with a connecting groove of the beer distribution device through a connecting part.

In foretell cask and beer distributor's connection structure, circumference has a plurality of joint convex parts on the outer peripheral face of connecting portion, circumference has the protruding edge of a plurality of joints on the cell wall of spread groove, forms the joint breach between the protruding edge of two adjacent joints, and is a plurality of form the joint clearance between the protruding edge of joint and the spread groove bottom surface, joint convex part joint is in the joint clearance when the joint convex part passes joint breach and cask rotation setting angle. Invert the cask when connecting cask and beer distributor, insert the joint convex part after aligning with the joint breach, the joint convex part passes behind the joint breach and offsets with the spread groove bottom surface and lean on, then rotates the cask settlement angle for in the joint convex part card goes into the joint clearance, easy operation is convenient, and connection stability is high, and then guarantees the sealed stability between sealing member to disk seat and the top core.

In foretell cask and beer distributor's connection structure, the spigot surface that has the slope on the lower terminal surface on the protruding edge of joint, the one end of joint convex part has spacing portion, joint convex part joint just spacing portion leans on with the terminal surface counterbalance on the protruding edge of joint in the joint clearance. The guide surface is obliquely arranged, the clamping convex part and the limiting part can be abutted and leaned against the back to be compressed by the clamping convex edge, the connection stability is ensured, and the sealing stability between the valve seat and the ejection core by the sealing element is further ensured.

The utility model provides a cask and beer distributor's connection structure, cask include the staving, connection structure is including setting up the wine lance in staving bung hole department, the wine lance is including being the tube-shape and the disk seat that is linked together with the staving inner chamber and setting up in the disk seat and can the case of shutoff disk seat under the spring action, and the cask is invertd and the wine lance can be dismantled with beer distributor and be connected, its characterized in that, beer distributor include vertical setting and be pipy apical core, the disk seat cup joints with the apical core mutually, and the apical core upwards pushes up the apical core lower extreme and be linked together through disk seat and staving inner chamber, circumference is provided with and forms sealed sealing member with apical core side on the disk seat side.

The sealing member sets up on the disk seat, can seal the fit clearance between disk seat and the top core equally, leak appears in avoiding the use, invert the connection process at the cask simultaneously, form to cup joint and the top core when the top core has not pushed away the case when the sealing member on the top core has formed sealed relation with the disk seat when the disk seat, then the top core just backs down the case, the sealing of disk seat and top core is in the front promptly, the case is backed down the back, thereby avoided cask and beer distributor to appear leaking in being connected the operation process.

In foretell cask and beer distributor's connection structure, the upper end at the top core is established to the disk seat cover, the sealing member includes the sealing washer, annular seal groove has been seted up to circumference on the disk seat medial surface, the sealing washer sets up in the seal groove, and sealing washer protrusion seal groove and top core lateral surface formation are sealed. The sealing ring is limited by the sealing groove, and the stability of the sealing ring is guaranteed.

Compared with the prior art, the connecting structure of the wine barrel and the beer distribution device has the following advantages:

1. because be provided with the sealing member on the plunger tip, seal the fit clearance between disk seat and the plunger tip through the sealing member, avoid appearing leaking in the use.

2. Because the vertical distance from the sealing element to the upper end of the top core is smaller than the vertical distance from the lower end of the valve core to the lower end of the valve seat when the valve seat is blocked by the valve core, in the inverted connecting process of the wine barrel, when the valve seat is sleeved with the top core and the top core does not push the valve core, the sealing element on the top core forms a sealing relation with the valve seat, then the top core pushes the valve core open, namely the valve seat and the top core are sealed in front, and the valve core is pushed open at the back, thereby avoiding the leakage of the wine barrel and the beer distribution device in the connecting operation process.

Drawings

Fig. 1 is a schematic perspective view of a wine barrel.

Fig. 2 is a schematic perspective view of a beer dispensing apparatus.

Fig. 3 is an enlarged view of the structure at a in fig. 2.

Figure 4 is a schematic perspective view of the keg when connected to the beer dispensing apparatus.

FIG. 5 is a partial cross-sectional view of the connection when the valve cartridge is not being lifted open.

Fig. 6 is a partial cross-sectional view of the connection structure when the valve cartridge is being lifted open.

In the figure, 1, a barrel body; 2. a wine spear; 21. a valve body; 211. a connecting portion; 212. clamping the convex part; 213. a limiting part; 22. a valve seat; 221. sealing the conical surface; 222. a step surface; 23. a valve core; 24. a spring; 25. a connecting cap; 3. a main body; 31. connecting grooves; 32. Clamping the convex edge; 321. a guide surface; 33. clamping the notch; 34. a clamping gap; 35. a faucet; 4. a core; 41. a pipe body; 411. a sealing groove; 42. pushing the convex part; 43. wine flowing through the mouth; 5. and (5) sealing rings.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

The first embodiment is as follows:

a connecting structure of a wine barrel and a beer distributing device is disclosed, as shown in figure 1, the wine barrel comprises a barrel body 1, the connecting structure comprises a wine lance 2 arranged at the opening of the barrel body 1, the wine lance 2 comprises a valve body 21, the valve body 21 is clamped with the opening of the barrel body 1 or in threaded connection, the top end of the valve body 21 in the inverted state of the wine barrel is provided with a cylindrical connecting part 211, the peripheral surface of the connecting part 211 is circumferentially provided with three clamping convex parts 212, a limiting part 213 is arranged between one end of the clamping convex part 212 and the lower end surface of the valve body 21, as shown in figure 2, the beer distributing device comprises a main body 3, a tubular top core 4 is vertically arranged on the main body 3, a tap 35 is arranged at the side part of the main body 3, the top core 4 is communicated with the tap 35, the tap 35 is used for controlling the opening and closing of a wine path, as shown in figure 3, a connecting groove 31 is arranged on the main body 3, and a through hole is arranged on the bottom surface of the connecting groove 31, the top core 4 extends upwards from the through hole, three clamping convex edges 32 are arranged on the upper circumferential direction of the groove wall of the connecting groove 31, a clamping gap 34 is formed between the clamping convex edge 32 and the bottom surface of the connecting groove 31, a clamping gap 33 is formed between two adjacent clamping convex edges 32, an inclined guide surface 321 is arranged on the lower end surface of each clamping convex edge 32, and as shown in a combined figure 4, the wine barrel is inverted and the connecting part 211 is inserted into the connecting groove 31, so that the wine barrel is connected with the beer distribution device, during the connection operation, the wine barrel needs to be inverted, the clamping convex part 212 is aligned with the clamping notch 33, when the coupling portion 211 is inserted into the coupling groove 31, the catching protrusion 212 passes through the catching notch 33, then turning to the cask, joint convex part 212 can block in the joint clearance 34 under the direction of spigot surface 321, until spacing portion 213 and joint protruding edge 32's tip butt against mutually, realize the cask and be connected of beer distributor.

Referring to fig. 5, the wine spear 2 further includes a valve seat 22, a valve core 23 and a spring 24, the valve seat 22 is cylindrical and disposed in the valve body 21, an inner end of the valve seat 22 is communicated with an inner cavity of the barrel body 1, a sealing conical surface 221 with a small end facing outward is circumferentially disposed on an inner wall of the valve seat 22, a connecting cap 25 is fixed in the inner end of the valve seat 22, the valve core 23 and the spring 24 are disposed in the valve seat 22, one end of the spring 24 abuts against the connecting cap 25, and the other end abuts against the valve core 23, when the wine barrel is not connected to the beer dispensing device, the valve core 23 can abut against the sealing conical surface 221 to form a seal under the action of the spring 24, so as to block the valve seat 22 and seal the wine in the barrel body 1.

Referring to fig. 6, the top core 4 includes a tube 41 and two pushing protrusions 42, the two pushing protrusions 42 are located on the upper end surface of the tube 41, a wine outlet 43 is formed between the two pushing protrusions 42, the inner diameter of the lower end of the valve seat 22 is larger than the outer diameter of the tube 41, an annular sealing groove 411 is circumferentially arranged on the outer side surface, a sealing ring 5 is sleeved in the sealing groove 411, the sealing ring 5 protrudes out of the sealing groove 411, the vertical distance from the sealing ring 5 to the upper end surface of the top pushing convex part 42 is smaller than the vertical distance from the lower end of the valve core 23 to the lower end of the valve seat 22 when the valve core 23 blocks the valve seat 22, therefore, as shown in the figure, the wine barrel is connected with the beer distribution device, the valve seat 22 is sleeved at the upper end of the pipe body 41, the sealing ring 5 and the inner side surface of the valve seat 22 form sealing, the pushing convex part 42 pushes the lower end of the valve core 23 upwards, so that the valve core 23 is separated from the sealing conical surface 221, that is, the inner cavity of the barrel body 1, the valve seat 22, the wine outlet 43 and the top core 4 are communicated. The inner side surface of the valve seat 22 is circumferentially provided with a step surface 222, the vertical distance from the sealing ring 5 to the upper end surface of the pipe body 41 is smaller than the vertical distance from the step surface 222 to the lower end of the valve seat 22, the upper end surface of the pipe body 41 abuts against the step surface 222, and just the vertical distance from the sealing ring 5 to the upper end surface of the top pushing convex part 42 is smaller than the vertical distance from the lower end of the valve seat 22 to the lower end of the valve core 23 when the valve seat 22 is blocked by the valve core 23, and the vertical distance from the sealing ring 5 to the upper end surface of the pipe body 41 is smaller than the vertical distance from the step surface 222 to the lower end of the valve seat 22, so that the sealing ring 5 enters the valve seat 22 and forms a seal with the valve seat 22 before the top pushing convex part 42 pushes the valve core 23 and before the upper end surface of the pipe body 41 abuts against the step surface 222 in the connection process of the wine cask and the beer distribution device, and leakage in the connection process is avoided.

Example two:

the connecting structure of the wine barrel and the beer distributing device is basically the same as that of the first embodiment, and the difference is that a sealing groove 411 is arranged on the inner side surface of a valve seat 22, a sealing ring 5 is arranged in the sealing groove 411, and the sealing ring 5 protrudes out of the sealing groove 411 and forms sealing with the outer side surface of a top core 4.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms barrel 1, spear 2, valve body 21, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a connection structure of cask and beer distributor, the cask includes staving (1), connection structure is including setting up beer lance (2) in staving (1) bung hole department, beer lance (2) including be the tube-shape and with staving (1) inner chamber be linked together disk seat (22) and set up in disk seat (22) and can shutoff disk seat (22) case (23) under spring (24) effect, the cask is invertd and beer lance (2) can be dismantled with beer distributor and be connected, its characterized in that, beer distributor includes vertical setting and be pipy apical core (4), disk seat (22) cup joint mutually with apical core (4), and apical core (4) upwards push up and push up the apical core (23) lower extreme and be linked together with staving (1) inner chamber through disk seat (22), circumference is equipped with and forms sealed sealing member with disk seat (22) side on apical core (4) side, the vertical distance from the sealing element to the upper end of the top core (4) is less than the vertical distance from the lower end of the valve core (23) to the lower end of the valve seat (22) when the valve core (23) blocks the valve seat (22); lance (2) are still including fixing valve body (21) in staving (1) bucket mouth department, the lower extreme of valve body (21) has connecting portion (211) of tube-shape, spread groove (31) have been seted up on the beer distributor, circumference has a plurality of joint convex parts (212) on the outer peripheral face of connecting portion (211), circumference has a plurality of joints protruding edge (32) on the cell wall of spread groove (31), and adjacent two joints are protruding to form joint breach (33) between (32), and is a plurality of joint protruding edge (32) and spread groove (31) bottom surface between form joint clearance (34), joint convex part (212) joint is in joint clearance (34) when joint convex part (212) pass joint breach (33) and cask rotation angle of setting.

2. The connection between the keg and the beer dispensing apparatus according to claim 1, wherein the valve seat (22) is fitted over the upper end of the top core (4), the sealing member is fitted over the outside of the top core (4), and the sealing member forms a seal with the inside surface of the valve seat (22).

3. The connecting structure of the wine cask and the beer dispensing device according to claim 2, wherein the sealing element comprises a sealing ring (5), an annular sealing groove (411) is circumferentially formed in the outer side surface of the top core (4), the sealing ring (5) is sleeved in the sealing groove (411), and the sealing ring (5) protrudes out of the sealing groove (411) and forms a seal with the inner side surface of the valve seat (22).

4. The connecting structure of the wine cask and the beer dispensing device according to claim 1, 2 or 3, wherein the top core (4) comprises a tube body (41) and a plurality of top pushing convex parts (42), the plurality of top pushing convex parts (42) are positioned on the upper end surface of the tube body (41), the vertical distance between the sealing element and the top surface of the top pushing convex part (42) is smaller than the distance between the lower end of the valve core (23) and the lower end of the valve seat (22) when the valve seat (22) is blocked by the valve core (23), a wine passing opening (43) is formed between two adjacent top pushing convex parts (42), the top pushing convex parts (42) push the valve core (23) upwards, and the tube body (41) is communicated with the valve seat (22) through the wine passing opening (43).

5. A keg and beer dispensing apparatus connection structure according to claim 4, characterized in that the valve seat (22) has a step surface (222) on its inner side surface in the circumferential direction, the distance from the sealing member to the upper end surface of the tubular body (41) is smaller than the distance from the step surface (222) to the lower end of the valve seat (22), and the upper end surface of the tubular body (41) abuts against the step surface (222).

6. A connecting structure of a beer keg and a beer dispensing apparatus according to claim 1, 2 or 3, characterized in that the valve seat (22) is provided in the valve body (21), the connecting groove (31) is provided with a through hole on the bottom surface, the top core (4) protrudes from the through hole, and the connecting part (211) is inserted in the connecting groove (31) and detachably connected.

7. The connecting structure of the wine cask and the beer dispensing device according to claim 6, characterized in that the lower end surface of the clamping convex edge (32) is provided with an inclined guide surface (321), one end of the clamping convex part (212) is provided with a limiting part (213), the clamping convex part (212) is clamped in the clamping gap (34), and the limiting part (213) abuts against the end surface of the clamping convex edge (32).

8. A connecting structure of a wine barrel and a beer distribution device, the wine barrel comprises a barrel body (1), the connecting structure comprises a wine lance (2) arranged at the opening of the barrel body (1), the wine lance (2) comprises a valve seat (22) which is in a cylindrical shape and is communicated with the inner cavity of the barrel body (1) and a valve core (23) which is arranged in the valve seat (22) and can seal the valve seat (22) under the action of a spring (24), the wine barrel is inverted, and the wine lance (2) is detachably connected with the beer distribution device, it is characterized in that the beer dispensing device comprises a tubular top core (4) which is vertically arranged, the valve seat (22) is sleeved with the top core (4), the top core (4) pushes the lower end of the valve core (23) upwards and is communicated with the inner cavity of the barrel body (1) through the valve seat (22), a sealing element which forms sealing with the side surface of the top core (4) is circumferentially arranged on the side surface of the valve seat (22); lance (2) are still including fixing valve body (21) in staving (1) bucket mouth department, the lower extreme of valve body (21) has connecting portion (211) of tube-shape, spread groove (31) have been seted up on the beer distributor, circumference has a plurality of joint convex parts (212) on the outer peripheral face of connecting portion (211), circumference has a plurality of joints protruding edge (32) on the cell wall of spread groove (31), and adjacent two joints are protruding to form joint breach (33) between (32), and is a plurality of joint protruding edge (32) and spread groove (31) bottom surface between form joint clearance (34), joint convex part (212) joint is in joint clearance (34) when joint convex part (212) pass joint breach (33) and cask rotation angle of setting.

9. The connecting structure of the wine cask and the beer dispensing device according to claim 8, wherein the valve seat (22) is sleeved on the upper end of the top core (4), the sealing element comprises a sealing ring (5), an annular sealing groove (411) is circumferentially formed on the inner side surface of the valve seat (22), the sealing ring (5) is arranged in the sealing groove (411), and the sealing ring (5) protrudes out of the sealing groove (411) and forms a seal with the outer side surface of the top core (4).