Isobaric filling valve

Abstract

The utility model relates to the technical field of beverage filling, in particular to an isobaric filling valve which comprises a valve body, a clamping assembly, a mounting seat and a sliding rod. A mounting hole is formed in the mounting seat, the valve body is fixedly arranged in the mounting hole, and an air injection pipe and an exhaust hole are arranged in the valve body; the sliding rod penetrates through the mounting seat and is in sliding connection with the mounting seat; the clamping assembly is fixedly installed at the end of the sliding rod. The end, away from the clamping assembly, of the sliding rod is fixedly connected with the filling machine. The clamping assembly is arranged right opposite to the mounting hole; one end, positioned above the mounting seat, of the valve body is fixedly arranged in a liquid storage tank of the filling machine; according to the arranged isobaric filling valve, a reset piece drives a valve element to slide in a mounting hole along a cavity of a valve sleeve, opening and closing of a liquid injection channel are conveniently achieved, and the filling efficiency is improved; and the flow dividing umbrella is arranged, so that bubbles are conveniently prevented from being generated when liquid flows into the beverage bottle, and the filling quality is conveniently improved.

Description

Technical Field

[0001] The present application relates to the technical field of beverage filling, and in particular to an isobaric filling valve. Background Art

[0002] When filling beverages, isobaric filling is a common filling method. Usually, an isobaric filling valve is set on the filling machine. By pressurizing the beverage bottle, the air pressure in the beverage bottle is consistent with the pressure of the liquid storage tank of the filling machine, and the liquid in the liquid storage tank is smoothly filled into the beverage bottle.

[0003] Existing isobaric filling valves usually require a separate liquid inlet pipe to be connected to the filling valve. During filling, the liquid inlet pipe has a small amount of liquid, resulting in a slow flow rate of the liquid in the beverage bottle, affecting the filling efficiency of the beverage. At the same time, the air pressure in the bottle is prone to change during filling, resulting in bubbles and empty bottles, and the filling quality is low. Utility Model Content

[0004] In order to improve the quality of beverage filling, the present application provides an isobaric filling valve.

[0005] The isobaric filling valve provided in this application adopts the following technical solution:

[0006] An isobaric filling valve comprises a valve body, a clamping assembly, a mounting seat and a sliding rod; a mounting hole is provided on the mounting seat, the valve body is fixedly arranged in the mounting hole, and an air injection pipe and an exhaust hole are arranged in the valve body; the sliding rod passes through the mounting seat, and the sliding rod is slidably connected to the mounting seat; the clamping assembly is fixedly installed on the end of the sliding rod, and one end of the sliding rod away from the clamping assembly is fixedly connected to a filling machine; the clamping assembly is arranged opposite to the mounting hole; one end of the valve body is located above the mounting seat and is fixedly arranged in a liquid storage tank of the filling machine.

[0007] By adopting the above technical scheme, when the beverage needs to be filled, the clamping assembly clamps the beverage bottle body, the sliding rod drives the clamping assembly to move upward, and the clamping assembly drives the beverage bottle to move upward, so that the valve body on the mounting seat is aligned with the beverage bottle mouth, the beverage bottle mouth abuts against the mounting seat, the air injection pipe is inserted into the beverage bottle, and the air injection pipe injects carbon dioxide into the beverage bottle. When the air pressure in the beverage bottle is consistent with the pressure in the liquid storage tank of the filling machine, the liquid in the liquid storage tank is filled into the beverage bottle through the valve body. At the same time as filling, the carbon dioxide gas inside the beverage bottle is released through the exhaust hole, thereby ensuring that the pressure of the beverage is stable during the filling process, avoiding the occurrence of bubbles and empty bottles, and improving the filling quality of the beverage.

[0008] In a specific possible implementation scheme, the valve body includes a valve sleeve, a valve core, a liquid injection portion and a reset member;

[0009] The valve sleeve is coaxially sleeved on the circumferential side wall of the valve core, and the valve core is slidably connected to the valve sleeve, a filling cavity is provided between the valve sleeve and the valve core, and a plurality of feed holes are opened on the side wall of the valve sleeve, and the feed holes are communicated with the filling cavity;

[0010] The gas injection pipe penetrates the valve core along the axial direction of the valve core, the gas injection pipe is fixedly connected to the valve core, and one end of the gas injection pipe located at the top of the valve core is connected to a carbon dioxide gas source; the reset member is arranged on the side wall of the valve core, and the reset member abuts against the top wall of the valve sleeve; the liquid injection part is fixedly arranged at the bottom end of the valve sleeve, and a plurality of liquid injection holes are opened at the bottom of the liquid injection part along the circumferential direction of the axis, and the liquid injection holes are connected to the filling cavity; the gas injection pipe passes through the mounting hole, and the liquid injection part and the bottom end of the valve core are located in the mounting hole;

[0011] The exhaust hole is vertically penetrated on the valve core, and the exhaust hole is parallel to the axis of the valve core along the length direction; the bottom end of the exhaust hole is communicated with the mounting hole.

[0012] By adopting the above technical scheme, the reset member is compressed downward in the initial state, so that the valve core is pressed against the inner wall of the mounting hole. When filling operation is required, the carbon dioxide gas source injects carbon dioxide gas into the beverage bottle through the gas injection pipe. When the pressure in the beverage bottle is consistent with the pressure in the liquid storage tank, the pressure in the bottle and the restoring force of the reset member cause the valve core to rise, so that a gap is generated between the valve core and the mounting hole. The liquid in the liquid storage tank enters the filling cavity from the feed hole and enters the mounting hole through the injection hole. The liquid enters the beverage bottle from the gap between the valve core and the mounting hole. During the filling, the gas in the bottle is discharged from the exhaust hole. When the filling is completed, the reset member is compressed again to press the valve core against the inner wall of the mounting hole, so that the valve core and the mounting hole are closely matched, and the liquid is blocked in the filling cavity. The valve body is provided, and the valve core is driven by the reset member to slide in the mounting hole along the cavity of the valve sleeve, which is convenient for realizing the opening and closing of the injection channel, thereby improving the filling efficiency.

[0013] In a specific possible implementation scheme, the diameter of the mounting hole gradually decreases from one end of the top wall of the mounting seat to one end of the bottom wall, a first step and a second step are provided in the mounting hole, the first step is located above the second step, the valve sleeve is fixedly provided on the first step, and the valve sleeve is fixedly connected to the side wall of the mounting hole;

[0014] The top wall of the second step is provided with a sealing gasket, the bottom end of the valve core is provided on the second step, and the end of the valve core abuts against the sealing gasket, the end of the valve core has the same taper as the mounting hole, and the end of the valve core fits tightly against the mounting hole;

[0015] The gas injection pipe extends out of the mounting hole.

[0016] By adopting the above technical scheme, the mounting hole is set, and the end of the valve core has the same taper as the mounting hole, which is convenient for sealing the injection channel. The sealing gasket arranged on the second step is abutted against the sealing gasket through the end of the valve core, thereby improving the sealing of the valve core and the mounting hole, and facilitating avoiding liquid leakage from the gap between the valve core and the mounting hole before and after filling, thereby reducing material waste and improving the quality of filling.

[0017] In a specific possible implementation manner, a sealing ring is fixedly provided on the inner wall of the valve sleeve close to one end of the liquid injection portion, and the sealing ring is located between the valve sleeve and the valve core.

[0018] By adopting the above technical solution, the sealing ring is provided, which prevents the liquid in the filling cavity from entering the cavity between the valve sleeve and the valve core during filling, thereby preventing material leakage and affecting the filling quality.

[0019] In a specific possible implementation scheme, the reset member includes a spring, which is wound around the circumferential side wall of the valve core, and a limiting boss is integrally provided on the top of the valve core. One end of the spring abuts against the top wall of the valve sleeve, and the other end abuts against the limiting boss. The top wall of the limiting boss is connected to a cylinder.

[0020] By adopting the above technical solution, a reset member is set, in the initial state, the cylinder pushes the limit boss, so that the spring is compressed, the valve core slides downward in the valve sleeve, and the bottom end of the valve core is tightly pressed against the mounting hole. When the air pressure in the beverage bottle rises to the same level as the pressure in the liquid storage tank, the spring pushes the limit boss upward under the action of the restoring force. At the same time, the pressure in the beverage bottle pushes the valve core upward, causing the cylinder to retract, and a gap is generated between the valve core and the mounting hole, forming a liquid injection channel, which is convenient for filling the beverage bottle.

[0021] In a specific possible implementation scheme, the bottom wall of the mounting seat is integrally provided with an adapting portion, the adapting portion is coaxially arranged with the mounting hole, and the diameter of the adapting portion gradually decreases from one end close to the valve core to one end away from the valve core;

[0022] The adapter portion abuts against the beverage bottle mouth.

[0023] By adopting the above technical solution, the diameter of the adapter portion is gradually reduced, which facilitates the adapter portion to abut against the beverage bottle mouth, reduces the gap between the beverage bottle and the adapter portion, and improves the air tightness during filling.

[0024] In a specific possible implementation manner, a diverter umbrella is fixedly provided on the side wall of one end of the gas injection pipe extending out of the mounting hole.

[0025] By adopting the above technical solution, during filling, the liquid flows out from the gap between the valve core and the mounting hole, and flows into the beverage bottle along the side wall of the air injection pipe. When passing through the diverter umbrella, the liquid is dispersed to the surroundings along the contour of the diverter umbrella and flows down along the inner wall of the beverage bottle, which makes it easy to avoid the generation of bubbles when the liquid flows into the beverage bottle, thereby improving the quality of filling.

[0026] In a specific implementation scheme, it further includes a guide limiter; the guide limiter includes a guide limiter block, a guide rod and a limiter sleeve; one end of the guide limiter block is penetrated by the slide rod, and the other end is penetrated by the guide rod, and the guide limiter block can slide along the length direction of the slide rod and the guide rod;

[0027] The guide rod passes through the mounting seat, one end of the guide rod passing through the mounting seat is fixedly connected to the clamping assembly, one end of the guide rod passing through the guide limit block is threadedly connected to a limit nut, and the limit nut abuts against the top wall of the guide limit block;

[0028] The limiting sleeve is sleeved on the side wall of the guide rod, and the limiting sleeve is located between the guide limiting block and the mounting seat.

[0029] By adopting the above technical solution, the guide limit piece is set, and when the slide rod drives the clamping assembly to rise, the guide limit block and the guide rod limit the slide rod and the clamping assembly, so as to avoid rotation and tilting of the clamping assembly when rising, and to facilitate the abutment between the beverage bottle mouth and the adapter, thereby improving the quality of filling.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. The isobaric filling valve is set up, and the valve core is driven to slide in the mounting hole along the cavity of the valve sleeve through the reset member, so as to facilitate the opening and closing of the injection channel and improve the filling efficiency.

[0032] 2. With the diverter umbrella, the liquid is dispersed around along the outline of the diverter umbrella and flows down along the inner wall of the beverage bottle, so as to avoid bubbles when the liquid flows into the beverage bottle, thereby improving the filling quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of an isobaric filling valve according to an embodiment.

[0034] Figure 2 It is a cross-sectional view of an isobaric filling valve according to an embodiment.

[0035] Figure 3 yes Figure 2 The enlarged view of part A is intended to illustrate the liquid injection part.

[0036] Figure 4 yes Figure 2 The enlarged view of part B is intended to illustrate the exhaust pipe and sealing gasket.

[0037] Description of the drawings: 1. Valve body; 11. Valve sleeve; 111. Feed hole; 112. Sealing ring; 12. Valve core; 121. Exhaust hole; 122. Limiting boss; 13. Liquid injection part; 131. Liquid injection hole; 14. Reset member; 141. Spring; 15. Filling chamber; 2. Clamping assembly; 3. Mounting seat; 31. Mounting hole; 311. First step; 312. Second step; 3121. Sealing gasket; 32. Adapter; 4. Sliding rod; 5. Air injection pipe; 51. Diverter umbrella; 6. Guide limiting member; 61. Guide limiting block; 62. Guide rod; 63. Limiting sleeve; 64. Limiting nut. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-4 This application is described in further detail.

[0039] The embodiment of the present application discloses an isobaric filling valve.

[0040] Reference Figure 1 , an isobaric filling valve, comprising a valve body 1, a clamping assembly 2, a mounting seat 3, a sliding rod 4, an air injection pipe 5 and a guide limiter 6; the valve body 1 is fixedly arranged on the mounting seat 3, the air injection pipe 5 passes through the valve body 1 and the mounting seat 3, the sliding rod 4 passes through the guide limiter 6 and the mounting seat 3, and the sliding rod 4 is slidingly connected with the guide limiter 6 and the mounting seat 3; the clamping assembly 2 is fixedly connected to the end of the sliding rod 4, and the clamping assembly 2 is located below the mounting seat 3, and the clamping assembly 2 is arranged opposite to the air injection pipe 5; one end of the valve body 1 located at the mounting seat 3 is fixedly arranged in the liquid storage tank of the filling machine, and the end of the sliding rod 4 away from the clamping assembly 2 is fixedly connected to the filling machine, and the filling machine can pull the sliding rod 4 to move up and down.

[0041] Reference Figure 1 The guide limit member 6 includes a guide limit block 61, a guide rod 62 and a limit sleeve 63; a slide rod 4 is passed through one end of the guide limit block 61, and a guide rod 62 is passed through the other end, and the guide limit block 61 can slide along the length direction of the slide rod 4 and the guide rod 62; the guide rod 62 passes through the mounting seat 3, and one end of the guide rod 62 passing through the mounting seat 3 is fixedly connected to the clamping assembly 2, and one end of the guide rod 62 passing through the guide limit block 61 is threadedly connected to the limit nut 64, and the limit nut 64 abuts against the top wall of the guide limit block 61; the limit sleeve 63 is sleeved on the side wall of the guide rod 62, and the limit sleeve 63 is located between the guide limit block 61 and the mounting seat 3.

[0042] Reference Figure 2The mounting seat 3 is provided with a mounting hole 31, and the valve body 1 is fixedly arranged in the mounting hole 31. The diameter of the mounting hole 31 gradually decreases from one end of the top wall to one end of the bottom wall of the mounting seat 3. A first step 311 and a second step 312 are arranged in the mounting hole 31. The first step 311 is located above the second step 312, and the first step 311 and the second step 312 are arranged coaxially; a sealing gasket 3121 is arranged on the top wall of the second step 312. An adapter 32 is integrally arranged on the bottom wall of the mounting seat 3. The adapter 32 is coaxially arranged with the mounting hole 31, and the diameter of the adapter 32 gradually decreases from one end close to the valve core 12 to one end away from the valve core 12; when the beverage bottle is filled, the adapter 32 abuts against the mouth of the beverage bottle.

[0043] Reference Figure 2 The valve body 1 includes a valve sleeve 11, a valve core 12, a liquid injection portion 13 and a reset member 14; the valve sleeve 11 is arranged on the first step 311, and the valve sleeve 11 is fixedly connected to the side wall of the mounting hole 31, the valve sleeve 11 is coaxially sleeved on the circumferential side wall of the valve core 12, the valve core 12 is slidingly connected to the valve sleeve 11, the bottom end of the valve core 12 is located on the second step 312, and the end of the valve core 12 is abutted against the sealing gasket 3121, the end of the valve core 12 has the same taper as the mounting hole 31, and the end of the valve core 12 is tightly fitted with the side wall of the mounting hole 31.

[0044] Reference Figure 2 The reset member 14 is arranged on the side wall of the valve core 12, and the reset member 14 includes a spring 141. The spring 141 is wound around the circumferential side wall of the valve core 12. A limiting boss 122 is integrally provided on the top of the valve core 12. One end of the spring 141 abuts against the top wall of the valve sleeve 11, and the other end abuts against the limiting boss 122. The top wall of the limiting boss 122 is connected to a cylinder.

[0045] Reference Figure 3 A filling cavity 15 is provided between the valve sleeve 11 and the valve core 12, and a plurality of feed holes 111 are provided on the side wall of the valve sleeve 11. The plurality of feed holes 111 are evenly opened along the circumferential side wall of the valve sleeve 11, and the feed holes 111 are communicated with the liquid storage tank and the filling cavity 15; a sealing ring 112 is fixedly provided on the inner wall of the valve sleeve 11 near one end of the liquid injection part 13, and the sealing ring 112 is located between the valve sleeve 11 and the valve core 12; the liquid injection part 13 is fixedly provided at the bottom end of the valve sleeve 11, and a plurality of liquid injection holes 131 are opened at the bottom of the liquid injection part 13 along the circumferential direction of the axis, and the liquid injection holes 131 are communicated with the filling cavity 15; the liquid injection part 13 and the bottom end of the valve core 12 are located in the mounting hole 31.

[0046] Reference Figure 2 and Figure 4, an air injection pipe 5 and an exhaust hole 121 are arranged in the valve core 12; the air injection pipe 5 penetrates the valve core 12 along the axial direction of the valve core 12, and the air injection pipe 5 extends out of the mounting hole 31, and the air injection pipe 5 is fixedly connected to the valve core 12; one end of the air injection pipe 5 located at the top of the valve core 12 is connected to a carbon dioxide gas source, and a diverter umbrella 51 is fixedly arranged on the side wall of the end of the air injection pipe 5 extending out of the mounting hole 31, and the diverter umbrella 51 is conical, and the diameter of the diverter umbrella 51 gradually increases from the end close to the valve core 12 to the end far from the valve core 12. During filling, the diverter umbrella 51 follows the air injection pipe 5 and extends into the beverage In the bottle, the liquid flows out from the gap between the valve core 12 and the mounting hole 31, flows down along the side wall of the gas injection pipe 5, and when passing through the diverter umbrella 51, the liquid is dispersed to the surroundings along the contour of the diverter umbrella 51, and flows down along the inner wall of the beverage bottle, so as to avoid the generation of bubbles when the liquid flows into the beverage bottle, and at the same time, it can also avoid the material blocking the gas in the bottle from flowing upward and affecting the filling, thereby improving the filling quality; the exhaust hole 121 is set on the valve core 12 from top to bottom, and the exhaust hole 121 is parallel to the axis of the valve core 12 along the length direction; the bottom end of the exhaust hole 121 is connected to the mounting hole 31.

[0047] In particular, a solenoid valve is connected to the top of the exhaust hole 121. The solenoid valve is closed before and after filling, and the filling valve is sealed. During filling, the solenoid valve is opened, and the gas in the bottle is discharged from the exhaust hole 121 to ensure the stability of the pressure in the beverage bottle, thereby avoiding bubbles and empty bottles in the beverage bottle.

[0048] The implementation principle of an isobaric filling valve of the present application is as follows: when it is necessary to fill the beverage, the clamping assembly 2 clamps the beverage bottle body, and the filling machine pulls the sliding rod 4, so that the sliding rod 4 drives the clamping assembly 2 to move upward along the length direction of the guide rod 62, and the clamping assembly 2 drives the beverage bottle to move upward, so that the adapter 32 on the mounting seat 3 is aligned with the beverage bottle mouth, the beverage bottle mouth abuts against the adapter 32, the gas injection pipe 5 is inserted into the beverage bottle, and the diverter umbrella 51 extends into the inner cavity of the beverage bottle. At this time, the cylinder pushes the limiting boss 122 to move downward, the spring 141 is in a compressed state, the end of the valve core 12 abuts against the sealing gasket 3121 provided on the second step 312, the solenoid valve provided on the exhaust pipe is also in a closed state, and the filling valve is airtight; then, the carbon dioxide gas source inputs carbon dioxide into the gas injection pipe 5, and the carbon dioxide gas enters the beverage bottle through the gas injection pipe 5. , when the air pressure in the beverage bottle is consistent with the pressure in the liquid storage tank of the filling machine, the air pressure in the bottle and the spring 141 lift the valve core 12, the cylinder retracts, and a gap is generated between the valve core 12 and the mounting hole 31. The liquid in the liquid storage tank enters the filling cavity 15 from the feed hole 111, and enters the mounting hole 31 through the injection hole 131. The liquid enters the beverage bottle from the gap between the valve core 12 and the mounting hole 31, and flows down along the side wall of the gas injection pipe 5. When passing through the diverter umbrella 51, the liquid is dispersed to the surroundings along the contour of the diverter umbrella 51, and flows down along the inner wall of the beverage bottle to reduce the generation of bubbles. During filling, the solenoid valve is opened, and the gas in the bottle is discharged from the exhaust hole 121. When the filling is completed, the cylinder compresses the spring 141 again, and presses the valve core 12 against the inner wall of the mounting hole 31, so that the valve core 12 and the mounting hole 31 are tightly matched, and the liquid is blocked in the filling cavity 15.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An isobaric filling valve, characterized in that: The invention comprises a valve body (1), a clamping assembly (2), a mounting seat (3) and a sliding rod (4); a mounting hole (31) is provided on the mounting seat (3), the valve body (1) is fixedly arranged in the mounting hole (31), and an air injection pipe (5) and an air exhaust hole (121) are arranged in the valve body (1); the sliding rod (4) passes through the mounting seat (3), and the sliding rod (4) is slidably connected to the mounting seat (3); the clamping assembly (2) is fixedly installed on the end of the sliding rod (4), and the end of the sliding rod (4) away from the clamping assembly (2) is fixedly connected to the filling machine; the clamping assembly (2) is arranged opposite to the mounting hole (31); the valve body (1) is located above the mounting seat (3), and one end is fixedly arranged in the liquid storage tank of the filling machine.

2. The isobaric filling valve according to claim 1, characterized in that: The valve body (1) comprises a valve sleeve (11), a valve core (12), a liquid injection portion (13) and a reset member (14); The valve sleeve (11) is coaxially sleeved on the circumferential side wall of the valve core (12), and the valve core (12) and the valve sleeve (11) are slidably connected, a filling cavity (15) is provided between the valve sleeve (11) and the valve core (12), and a plurality of feed holes (111) are opened on the side wall of the valve sleeve (11), and the feed holes (111) are communicated with the filling cavity (15); The gas injection pipe (5) penetrates the valve core (12) along the axial direction of the valve core (12), the gas injection pipe (5) is fixedly connected to the valve core (12), and one end of the gas injection pipe (5) located at the top of the valve core (12) is connected to a carbon dioxide gas source; the reset member (14) is arranged on the side wall of the valve core (12), and the reset member (14) abuts against the top wall of the valve sleeve (11); the liquid injection portion (13) is fixedly arranged at the bottom end of the valve sleeve (11), and a plurality of liquid injection holes (131) are opened at the bottom of the liquid injection portion (13) along the circumferential direction of the axis, and the liquid injection holes (131) are connected to the filling cavity (15); the gas injection pipe (5) passes through the mounting hole (31), and the liquid injection portion (13) and the bottom end of the valve core (12) are located in the mounting hole (31); The exhaust hole (121) is provided on the valve core (12) from top to bottom, and the exhaust hole (121) is parallel to the axis of the valve core (12) along the length direction; the bottom end of the exhaust hole (121) is connected to the mounting hole (31).

3. The isobaric filling valve according to claim 2, characterized in that: The diameter of the mounting hole (31) gradually decreases from one end of the top wall to one end of the bottom wall of the mounting seat (3); a first step (311) and a second step (312) are provided in the mounting hole (31); the first step (311) is located above the second step (312); the valve sleeve (11) is fixedly arranged on the first step (311), and the valve sleeve (11) is fixedly connected to the side wall of the mounting hole (31); A sealing gasket (3121) is provided on the top wall of the second step (312), the bottom end of the valve core (12) is provided on the second step (312), and the end of the valve core (12) abuts against the sealing gasket (3121), the end of the valve core (12) and the mounting hole (31) have the same taper, and the end of the valve core (12) and the mounting hole (31) are tightly fitted; The gas injection pipe (5) extends out of the mounting hole (31).

4. The isobaric filling valve according to claim 2, characterized in that: A sealing ring (112) is fixedly provided on the inner wall of the valve sleeve (11) at one end close to the liquid injection portion (13); the sealing ring (112) is located between the valve sleeve (11) and the valve core (12).

5. The isobaric filling valve according to claim 2, characterized in that: The reset member (14) comprises a spring (141), the spring (141) is wound around the circumferential side wall of the valve core (12), a limiting boss (122) is integrally provided on the top of the valve core (12), one end of the spring (141) abuts against the top wall of the valve sleeve (11), and the other end abuts against the limiting boss (122), and the top wall of the limiting boss (122) is connected to a cylinder.

6. The isobaric filling valve according to claim 2, characterized in that: The bottom wall of the mounting seat (3) is integrally provided with an adapting portion (32), the adapting portion (32) is coaxially arranged with the mounting hole (31), and the diameter of the adapting portion (32) gradually decreases from an end close to the valve core (12) to an end away from the valve core (12); The adapter portion (32) abuts against the mouth of the beverage bottle.

7. The isobaric filling valve according to claim 1, characterized in that: A flow-dividing umbrella (51) is fixedly provided on the side wall of one end of the gas injection pipe (5) extending out of the mounting hole (31).

8. The isobaric filling valve according to claim 1, characterized in that: It also includes a guide limiter (6); the guide limiter (6) includes a guide limiter block (61), a guide rod (62) and a limiter sleeve (63); one end of the guide limiter block (61) is penetrated by the slide rod (4), and the other end is penetrated by the guide rod (62); the guide limiter block (61) can slide along the length direction of the slide rod (4) and the guide rod (62); The guide rod (62) passes through the mounting seat (3), one end of the guide rod (62) passing through the mounting seat (3) is fixedly connected to the clamping assembly (2), one end of the guide rod (62) passing through the guide limit block (61) is threadedly connected to the limit nut (64), and the limit nut (64) abuts against the top wall of the guide limit block (61); The limiting sleeve (63) is sleeved on the side wall of the guide rod (62), and the limiting sleeve (63) is located between the guide limiting block (61) and the mounting seat (3).

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