CN112678308B

CN112678308B - Beer packing box

Info

Publication number: CN112678308B
Application number: CN202011613483.4A
Authority: CN
Inventors: 齐艳红
Original assignee: Huaibei Zhihuai Technology Co ltd
Current assignee: Huaibei Zhihuai Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-12-16
Anticipated expiration: 2040-12-30
Also published as: CN112678308A

Abstract

The invention belongs to the technical field of packaging boxes, and particularly relates to a beer packaging box which comprises a body and a pull ring; the upper surface of the body is fixedly connected with a pull ring, and the left end wall and the right end wall of the body are provided with placing grooves; beer cans can be placed in the placing groove, and the two sides in the placing groove are symmetrically provided with the encircling devices; the encircling device comprises a stress plate, an extrusion rod, a connecting rod and a mounting plate; the connecting rod is U-shaped, a first air pressure groove is formed in the inner end of the connecting rod, and the lower end of the connecting rod is fixedly connected to the lower surface of the inner part of the body; an extrusion rod is connected in the first air pressure groove in a sliding manner; the invention is mainly used for designing a novel canned beer packaging box and adopting a unique packaging technology to ensure that the canned beer packaging box is not afraid of moisture infection in perennial humid areas, can effectively protect the can body to prevent the can body from deformation and damage, and can reduce the consumption of wood so as to ensure that the canned beer packaging box is safer in the transportation process.

Description

Beer packing box

Technical Field

The invention belongs to the technical field of packaging boxes, and particularly relates to a beer packaging box.

Background

The beer is brewed by using wheat malt and barley malt as main raw materials, adding hops, gelatinizing and saccharifying in a liquid state, and fermenting in a liquid state. It has low alcohol content, contains carbon dioxide, and is rich in nutrition. It contains various amino acids, vitamins, low molecular sugar, inorganic salts and various enzymes. The nutrient components are easy to be absorbed and utilized by human body. Low molecular sugar and amino acid in beer are easy to digest and absorb, and generate a large amount of heat energy in vivo, so that beer is often called liquid bread. 1L of beer with 12 degrees Bx can generate 3344kJ heat which is equivalent to the heat generated by 3 to 5 eggs or 210g bread, and if a light laborer can drink 1L of beer in one day, one third of the required heat can be obtained.

Beer packaging in the prior art usually adopts two modes of bottling and filling, for filling beer in the beer packaging, paper sheet combined packaging is usually adopted, but for places which are wet all the year round, paper packaging is very easy to be wetted to cause damage, a very good storage bin needs to be established at a high price, once the paper packaging is wetted, sales are not only influenced, but also transportation is difficult, the paper packaging is usually torn down when being used by people, a large amount of wood is wasted, meanwhile, the paper packaging cannot effectively protect a tank body, and the protection effect almost completely disappears when the paper packaging is wetted.

Disclosure of Invention

In order to make up the defects of the prior art, the invention provides a beer packaging box. The invention is mainly used for designing a novel canned beer packaging box and adopting a unique packaging technology to ensure that the canned beer packaging box is not afraid of moisture infection in perennial humid areas, can effectively protect the can body to prevent the can body from deformation and damage, and can reduce the consumption of wood so as to ensure that the canned beer packaging box is safer in the transportation process.

The technical scheme adopted by the invention for solving the technical problems is as follows: the beer packing box comprises a body and a pull ring; the upper surface of the body is fixedly connected with a pull ring, and the left end wall and the right end wall of the body are provided with a placing groove; beer cans can be placed in the placing groove, and the two sides in the placing groove are symmetrically provided with encircling devices; the encircling device comprises a stress plate, an extrusion rod, a connecting rod and a mounting plate; the connecting rod is U-shaped, a first air pressure groove is formed in the inner end of the connecting rod, the outer end of the connecting rod is fixedly connected with a mounting plate, and the lower end of the connecting rod is fixedly connected to the inner lower surface of the body; an extrusion rod is connected in the first air pressure groove in a sliding manner; a stress plate is fixedly connected above the extrusion rod; the stress plate is obliquely arranged and is parallel to the placing grooves on the two sides; the upper surface of the mounting plate is fixedly connected with a limiting rod; the limiting rod is arranged in an arc shape, and two pressure grooves are symmetrically formed in the two ends of the limiting rod; the outer end of the second air pressure groove is provided with a pushing column; the outer end of the pushing column is provided with a closed ring; the closed ring is connected inside two ends of the limiting rod in a sliding mode, and the closed ring and the limiting ring can be combined into a circular ring in a matched mode; during the use, can put into the body through the standing groove with the canned beer that the production was accomplished, can extrude inside atress board because of gravity reason after canned beer gets into the standing groove, make the atress board drive the stripper bar and move down, in the in-process that the stripper bar moved down, can extrude the atmospheric pressure in the inside atmospheric pressure inslot of connecting rod, make the inside atmospheric pressure of No. two atmospheric pressure inslots rather than the intercommunication strengthen greatly and promote the promotion post and remove, and can promote the closed ring in its outside to outwards slide when promoting the post removal, and finally accomplish the combination and assemble, make closed ring and spacing ring form the surface cohesion of ring with canned beer, realize relying on the gravity of beer self to pack, be different from the artifical paper packing of prior art, not only save labour and material resources greatly, canned beer's packing speed has still been improved, canned beer can also effectively protect its jar body owing to place in the standing groove simultaneously, avoid colliding mutually between the jar body to lead to the jar body to take place deformation.

The inner part of the outer end of the closed ring is fixedly connected with an extrusion air bag; the outer end of the extrusion air bag is fixedly connected with a magnet block, and the internal air pressure of the extrusion air bag is communicated with the pushing cavity; the pushing cavity is formed in the closed ring; the inner surface of the pushing cavity is hinged with a hinge frame; the lower end of the hinged frame is fixedly connected to the upper surface of the rubber ring; the rubber ring is arranged in an arc shape, and the radian of the rubber ring is the same as that of the closed ring; when the closed rings on two sides of the limit ring are close to each other by extrusion force and reach a certain distance, the magnet blocks at the outer end parts of the closed rings can attract each other, so that the effect of assisting closing is achieved, a pulling force is given when the closed rings are to be closed, the last closed rings can be connected with each other, the situation that the closed rings cannot move in place is avoided, canned beer can not be effectively fixed, meanwhile, the magnet blocks attract each other and finally enable the closed rings to be closed relatively, the extrusion air bags on the inner sides of the magnet blocks can be extruded due to the extrusion force, so that the air pressure in the magnet blocks can be injected into the pushing cavity, the air pressure in the pushing cavity is greatly increased, and finally the rubber rings are pushed to move towards the outer sides of the closed rings to enable the rubber rings to be in contact with the outer surface of the canned beer, so that the friction force between the closed rings and the canned beer is greatly improved, the problem that the canned beer is easy to fall off from the placing groove is avoided, and the packaging stability is further improved.

The interior of the extrusion air bag is also communicated with the stable cavity; the stable cavity is arranged between the closed ring and the pushing column; the pushed column is elastically connected with the closed ring by a spring; and the non-Newtonian fluid is filled in the second air pressure groove.

A stress cavity is formed in the outer end of the rubber ring; the cross section of the stress cavity is circular, and the stress cavity and the stable cavity are set to be in a communicated state; when the extrusion gasbag is extruded, still can let in a part of gas in the stable intracavity, and then make the atmospheric pressure of stabilizing the intracavity increase greatly, and be inflation state extrusion closed ring and promote the post, it can make the inseparabler of connecting between the closed ring to extrude the closed ring, further improve the structural stability of packing, improve the protective force to the jar body simultaneously, if receive the pulling of external force suddenly and can whipping, can make the frictional force between the jar body and the rubber ring increase in the twinkling of an eye, even the pressure that gets the stress chamber increases in the twinkling of an eye and pours its atmospheric pressure into the stable intracavity and begin to promote the post, and when atmospheric pressure extrusion promotes the post, can make the non-Newton's fluid in No. two atmospheric pressure inslots solidify in the twinkling of an eye and lead to promoting the post can't retract, make overall structure form card dead in the twinkling of an eye, avoid canned beer to drop from the standing groove, can realize carrying out the protection of depth to canned beer before huge pulling force face or throwing power face.

The wall thickness of the outer wall of one side of the rubber ring, which is close to the placing groove, is thinner than the normal wall thickness, and a memory iron sheet is embedded in the outer wall of the rubber ring; the memory iron sheet is arc-shaped; that is, when the tubular pile beer is placed in the placing groove, the outer surface of the tubular pile beer is firstly contacted with the memory iron sheet, thereby greatly reducing the friction force between the rubber ring and the tank body thereof and ensuring that the canned beer can correctly and completely enter the body.

The outer wall of the inner side of the rubber ring is uniformly and fixedly embedded with friction balls; the outer surface of the friction ball is uniformly and fixedly provided with clamping teeth, and the friction ball is made of a ceramic silicon rubber material.

The invention has the following beneficial effects:

1. can extrude inside atress board because of gravity reason behind the canned beer gets into the standing groove, make the atress board drive the stripper bar and move down, in-process that the stripper bar moved down, can extrude the atmospheric pressure of the inside atmospheric pressure inslot of connecting rod, make the inside atmospheric pressure of No. two atmospheric pressure inslots rather than the intercommunication strengthen greatly and promote the promotion post and remove, and can promote the closed ring in its outside when promoting the post and slide outwards, and finally accomplish the combination and assemble, make closed ring and spacing ring form the surface cohesion of ring with canned beer, the realization relies on the gravity of beer self to pack, be different from prior art's artifical paper packing, labour and materials have not only been saved greatly, canned beer's packing speed has still been improved, canned beer can also effectively protect its jar body owing to place in the standing groove simultaneously, avoid colliding mutually between the jar body to lead to the jar body to take place deformation.

2. When the closed rings on two sides of the limit ring are close to each other by extrusion force and reach a certain distance, the magnet blocks at the outer end parts of the closed rings can attract each other, so that the effect of assisting in closing is achieved, a pulling force is given when the closed rings are to be closed, the last closed rings can be connected with each other, the situation that the closed rings cannot move in place is avoided, canned beer can not be effectively fixed, meanwhile, when the magnet blocks attract each other and finally the closed rings are closed relatively, the extrusion air bags on the inner sides of the magnet blocks can be extruded due to the extrusion force, so that the air pressure inside the magnet blocks can be injected into the pushing cavity, the air pressure of the pushing cavity is greatly increased, the rubber rings are finally pushed to move towards the outer sides of the closed rings, the rubber rings are in contact with the outer surface of the canned beer, the friction force between the closed rings and the canned beer is greatly improved, the problem that the canned beer is prone to fall off from the placing grooves is avoided, and the stability of packaging is further improved.

3. When the extrusion gasbag is extruded, still can let in a part of gas in the stable intracavity, and then make the atmospheric pressure of stabilizing the intracavity increase greatly, and be inflation state extrusion closed ring and promote the post, it can make the inseparabler of connecting between the closed ring to extrude the closed ring, further improve the structural stability of packing, improve the protective force to the jar body simultaneously, if receive the pulling of external force suddenly and can whipping, can make the frictional force between the jar body and the rubber ring increase in the twinkling of an eye, even the pressure that gets the stress chamber increases in the twinkling of an eye and pours its atmospheric pressure into the stable intracavity and begin to promote the post, and when atmospheric pressure extrusion promotes the post, can make the non-Newton's fluid in No. two atmospheric pressure inslots solidify in the twinkling of an eye and lead to promoting the post can't retract, make overall structure form card dead in the twinkling of an eye, avoid canned beer to drop from the standing groove, can realize carrying out the protection of depth to canned beer before huge pulling force face or throwing power face.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic structural diagram of the embracing means of the present invention;

FIG. 4 is a schematic view of the construction of the rubber ring of the present invention;

FIG. 5 is an enlarged view of a portion of the invention at A in FIG. 3;

FIG. 6 is an enlarged view of a portion of the invention at B in FIG. 4;

in the figure: the device comprises a body 1, a placing groove 11, a pull ring 2, an encircling device 3, a stress plate 31, an extrusion rod 32, a connecting rod 33, a mounting plate 34, a first air pressure groove 35, a limiting rod 36, a second air pressure groove 37, a pushing column 38, a closing ring 39, an extrusion air bag 391, a magnet block 392, a pushing cavity 393, a hinge frame 394, a rubber ring 4, a stabilizing cavity 41, a stress cavity 42, a memory iron sheet 43, a friction ball 44 and a latch 45.

Detailed Description

A beer packing box according to an embodiment of the present invention will be described below with reference to fig. 1 to 6.

As shown in fig. 1-6, the beer packing box of the present invention comprises a body 1 and a pull ring 2; the upper surface of the body 1 is fixedly connected with a pull ring 2, and the left end wall and the right end wall of the body 1 are provided with placing grooves 11; beer cans can be placed in the placing groove 11, and the two sides in the placing groove 11 are symmetrically provided with the surrounding devices 3; the encircling device 3 comprises a stress plate 31, an extrusion rod 32, a connecting rod 33 and a mounting plate 34; the connecting rod 33 is U-shaped, a first air pressure groove 35 is formed in the inner end of the connecting rod 33, the outer end of the connecting rod 33 is fixedly connected with a mounting plate 34, and the lower end of the connecting rod 33 is fixedly connected to the inner lower surface of the body 1; the first air pressure groove 35 is internally and slidably connected with an extrusion rod 32; a stress plate 31 is fixedly connected above the extrusion rod 32; the stress plate 31 is obliquely arranged, and the stress plate 31 is arranged in parallel with the placing grooves 11 on the two sides; the upper surface of the mounting plate 34 is fixedly connected with a limiting rod 36; the limiting rod 36 is arranged in an arc shape, and two pressure grooves 37 are symmetrically formed in the two ends of the limiting rod 36; the outer end of the second air pressure groove 37 is provided with a pushing column 38; the outer end of the pushing column 38 is provided with a closed ring 39; the closed ring 39 is connected inside two ends of the limiting rod 36 in a sliding manner, and the closed ring 39 and the limiting rod can be combined into a circular ring in a matching manner; during the use, can put into body 1 through standing groove 11 with the canned beer that the production was accomplished, can extrude inside atress board 31 because of gravity reason after canned beer gets into standing groove 11, make atress board 31 drive the extrusion stem 32 and move down, in the in-process that extrusion stem 32 moved down, can extrude the atmospheric pressure in the inside atmospheric pressure groove 35 of connecting rod 33, make the inside atmospheric pressure of the inside atmospheric pressure groove 37 of No. two air pressure groove 37 rather than the intercommunication strengthen greatly and promote the promotion post 38 and remove, and can promote the closed ring 39 of its outside to outwards slide when promoting the post 38 and removing, and finally accomplish the combination and assemble, make closed ring 39 and spacing ring form the ring and embrace the surface of canned beer, realize relying on the gravity of beer self to pack, different from the artifical paper packing of prior art, the labour has not only greatly saved, the canned beer speed of canning has still improved, simultaneously can also effectively protect its jar body owing to place in standing groove 11, avoid the jar body between the collision mutually to lead to the occurrence of jar body deformation.

The inner part of the outer end of the closed ring 39 is fixedly connected with an extrusion air bag 391; the outer end of the extrusion air bag 391 is fixedly connected with a magnet block 392, and the internal air pressure of the extrusion air bag 391 is communicated with the pushing cavity 393; the pushing cavity 393 is opened inside the closed ring 39; the inner surface of the pushing cavity 393 is hinged with a hinge frame 394; the lower end of the hinge frame 394 is fixedly connected to the upper surface of the rubber ring 4; the rubber ring 4 is arranged in an arc shape, and the radian of the rubber ring 4 is the same as that of the closed ring 39; when the closed rings 39 on the two sides of the limiting ring are close to each other by extrusion force and reach a certain distance, the magnet blocks 392 on the outer end parts of the closed rings can attract each other, so that the effect of assisting closing is achieved, a pulling force is given when the closed rings 39 are closed, the last closed rings 39 can be connected with each other, the situation that canned beer cannot be effectively fixed when the closed rings 39 are not in place is avoided, meanwhile, when the magnet blocks 392 attract each other and finally the closed rings 39 are relatively closed, the extrusion air bags 391 on the inner sides of the magnet blocks 392 are extruded due to the extrusion force, so that the air pressure in the magnet blocks is injected into the pushing cavity 393, namely, the air pressure in the pushing cavity 393 is greatly increased, and finally the rubber ring 4 is pushed to move towards the outer sides of the closed rings 39, so that the rubber ring 4 is in contact with the outer surface of the canned beer, the friction force between the closed rings 39 and the canned beer is greatly improved, the problem that the canned beer is easy to fall off from the placing groove 11 is avoided, and the packaging stability is further improved.

The interior of the squeeze balloon 391 also communicates with the stabilization lumen 41; the stabilization chamber 41 opens between the closure ring 39 and the pushing cylinder 38; the pushed column 38 and the closed ring 39 are elastically connected by a spring; the second pneumatic groove 37 is filled with non-Newtonian fluid.

A stress cavity 42 is formed in the outer end of the rubber ring 4; the cross section of the stress cavity 42 is circular, and the stress cavity 42 and the stable cavity 41 are set to be in a communicated state; when the extrusion air bag 391 is extruded, a part of air is introduced into the stable cavity 41, so that the air pressure in the stable cavity 41 is greatly increased, the closed ring 39 and the pushing column 38 are extruded in an expansion state, the closed ring 39 is extruded, the connection between the closed rings 39 can be tighter, the structural stability of the package is further improved, the protection acting force on the tank body is improved, meanwhile, if the tank body is suddenly pulled by external force, the friction force between the tank body and the rubber ring 4 is instantly increased, namely, the pressure of the stress cavity 42 is instantly increased and the air pressure is injected into the stable cavity 41 to start pushing the pushing column 38, and when the pushing column 38 is extruded by the air pressure, non-Newtonian fluid in the second air pressure groove 37 is instantly solidified to cause the pushing column 38 to be incapable of retracting, so that the integral structure forms a blocking form instantly, the canned beer is prevented from falling out of the beer placing groove 11, and the deep beer canning in front of a huge pulling force or in front of a swinging force level can be realized.

The wall thickness of the outer wall of one side of the rubber ring 4 close to the placing groove 11 is thinner than that of the outer wall of the rubber ring 4 in normal, and a memory iron sheet 43 is embedded in the outer wall of the rubber ring 4; the memory iron sheet 43 is arc-shaped; that is, when the tubular pile beer is placed in the placing groove 11, the outer surface of the tubular pile beer is firstly contacted with the memory iron sheet 43, so that the friction force between the rubber ring 4 and the tank body is greatly reduced, and the canned beer can be ensured to correctly and completely enter the body 1.

The inner outer wall of the rubber ring 4 is uniformly and fixedly embedded with friction balls 44; the outer surface of the friction ball 44 is uniformly and fixedly provided with clamping teeth 45, and the friction ball 44 is made of ceramic silicon rubber material.

The specific working process is as follows:

when the beer canning device is used, canned beer which is produced can be placed into the body 1 through the placing groove 11, the canned beer can be extruded to the inner stress plate 31 due to gravity after entering the placing groove 11, the stress plate 31 drives the extrusion rod 32 to move downwards, in the process that the extrusion rod 32 moves downwards, air pressure in the first air pressure groove 35 in the connecting rod 33 can be extruded, the air pressure in the second air pressure groove 37 communicated with the second air pressure groove is greatly enhanced, the pushing column 38 is pushed to move, the closing ring 39 on the outer side of the pushing column 38 can be pushed to slide outwards when the pushing column 38 moves, and finally, the combination and assembly are completed, so that the closing ring 39 and the limiting ring form a circular ring to clamp the outer surface of the canned beer, the packaging is realized by the gravity of the beer, the manual paper packaging in the prior art is different, labor force is greatly saved, the beer canning speed is increased, and the beer can be effectively protected by placing in the placing groove 11, and the deformation of the beer can body caused by mutual collision is avoided; when the closed rings 39 on the two sides of the limiting ring are close to each other by extrusion force and reach a certain distance, the magnet blocks 392 on the outer end parts of the closed rings are mutually attracted, so that the effect of assisting closing is achieved, a pulling force is given when the closed rings 39 are closed, the last closed rings 39 can be ensured to be mutually connected, the situation that canned beer cannot be effectively fixed when the closed rings 39 are not in place is avoided, meanwhile, when the magnet blocks 392 are mutually attracted and finally the closed rings 39 are relatively closed, the extrusion air bags 391 on the inner sides of the magnet blocks 392 are extruded due to the extrusion force, so that the air pressure in the magnet blocks is injected into the pushing cavity 393, namely, the air pressure in the pushing cavity 393 is greatly increased, and finally the rubber ring 4 is pushed to move towards the outer sides of the closed rings 39, so that the rubber ring 4 is in contact with the outer surface of the canned beer, the friction force between the closed rings 39 and the canned beer is greatly improved, the problem that the canned beer is easy to fall off from the placing groove 11 is avoided, and the packaging stability is further improved; when the extrusion air bag 391 is extruded, a part of air is introduced into the stable cavity 41, so that the air pressure in the stable cavity 41 is greatly increased, the closed ring 39 and the pushing column 38 are extruded in an expansion state, the closed ring 39 is extruded, the connection between the closed rings 39 can be tighter, the structural stability of the package is further improved, the protection acting force on the tank body is improved, meanwhile, if the tank body is suddenly pulled by external force, the friction force between the tank body and the rubber ring 4 is instantly increased, namely, the pressure of the stress cavity 42 is instantly increased and the air pressure is injected into the stable cavity 41 to start pushing the pushing column 38, and when the pushing column 38 is extruded by the air pressure, non-Newtonian fluid in the second air pressure groove 37 is instantly solidified to cause the pushing column 38 to be incapable of retracting, so that the integral structure forms a blocking form instantly, the canned beer is prevented from falling out of the beer placing groove 11, and the deep beer canning in front of a huge pulling force or in front of a swinging force level can be realized.

While the present invention has been described with reference to the particular illustrative embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and equivalents thereof, which may be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A beer packing box comprises a body (1) and a pull ring (2); the method is characterized in that: the upper surface of the body (1) is fixedly connected with a pull ring (2), and the left end wall and the right end wall of the body (1) are provided with a placing groove (11); beer cans can be placed in the placing groove (11), and the two sides in the placing groove (11) are symmetrically provided with the encircling devices (3); the encircling device (3) comprises a stress plate (31), an extrusion rod (32), a connecting rod (33) and a mounting plate (34); the connecting rod (33) is U-shaped, a first pressure groove (35) is formed in the inner end of the connecting rod (33), the outer end of the connecting rod (33) is fixedly connected with a mounting plate (34), and the lower end of the connecting rod (33) is fixedly connected to the lower surface of the interior of the body (1); the first air pressure groove (35) is connected with an extrusion rod (32) in a sliding way; a stress plate (31) is fixedly connected above the extrusion rod (32); the stress plate (31) is obliquely arranged, and the stress plate (31) is parallel to the placing grooves (11) on the two sides; the upper surface of the mounting plate (34) is fixedly connected with a limiting rod (36); the limiting rod (36) is arranged in an arc shape, and two pressure grooves (37) are symmetrically formed in the two ends of the limiting rod (36); the outer end of the second air pressure groove (37) is provided with a pushing column (38); the outer end of the pushing column (38) is provided with a closed ring (39); the closed ring (39) is connected to the inner parts of two ends of the limiting rod (36) in a sliding manner, and the closed ring (39) and the limiting ring can be combined into a circular ring in a matching manner;

the inner part of the outer end of the closed ring (39) is fixedly connected with an extrusion air bag (391); the outer end of the extrusion air bag (391) is fixedly connected with a magnet block (392), and the internal air pressure of the extrusion air bag (391) is communicated with the pushing cavity (393); the pushing cavity (393) is opened inside the closed ring (39); the inner surface of the pushing cavity (393) is hinged with a hinge frame (394); the lower end of the hinge frame (394) is fixedly connected to the upper surface of the rubber ring (4); the rubber ring (4) is arranged in an arc shape, and the radian of the rubber ring (4) is the same as that of the closed ring (39);

the interior of the squeezing air bag (391) is also communicated with a stable cavity (41); the stabilizing cavity (41) is opened between the closed ring (39) and the pushing column (38); the pushed column (38) is elastically connected with the closed ring (39) by a spring; the second pressure groove (37) is filled with non-Newtonian fluid;

a stress cavity (42) is formed in the outer end of the rubber ring (4); the cross section of the stress cavity (42) is circular, and the stress cavity (42) and the stable cavity (41) are set to be in a communicated state;

the wall thickness of the outer wall of one side, close to the placing groove (11), of the rubber ring (4) is thinner than that of the outer wall of the rubber ring (4) normally, and a memory iron sheet (43) is embedded in the outer wall of the rubber ring (4); the memory iron sheet (43) is arc-shaped.

2. A beer packing case according to claim 1, wherein: friction balls (44) are uniformly and fixedly embedded in the outer wall of the inner side of the rubber ring (4); the outer surface of the friction ball (44) is uniformly and fixedly provided with clamping teeth (45), and the friction ball (44) is made of a ceramic silicon rubber material.