A wort oxygenation device for beer brewing

Abstract

The present invention belongs to the technical field of beer brewing, and specifically is a wort oxygenation device for beer brewing, comprising an oxygenation tank and an oxygen tank, wherein a sealing cover is provided on the oxygenation tank, a transmission cylinder is rotatably installed inside the oxygenation tank, the oxygen tank is connected with the inner cavity of the transmission cylinder through a connecting pipe, a hollow rotating rod is fixedly installed on the transmission cylinder, the inner cavities of the rotating rod are connected, an airway switching ball is rotatably installed on the rotating rod, a first air hole and a second air hole are provided on the rotating rod, a sliding groove is provided on one end of the rotating rod and a control ring close to the airway switching ball, a rotating rod is fixedly installed on the airway switching ball, one end of the rotating rod extends to the inside of the sliding groove and a transmission gear is fixedly installed, and the sliding groove and the gear ring are meshed with the transmission gear, and through the coordinated use of the above structure, the first air hole and the second air hole can be switched by rotating the airway switching ball, so as to adaptively change the oxygen output and adapt to the oxygen amount required by different yeasts.

Description

Technical Field

[0001] The invention belongs to the technical field of beer brewing, in particular to a wort oxygenation device for beer brewing. Background Art

[0002] The wort oxygenator for beer brewing is a device used to inject oxygen into the wort during the beer brewing process. It usually includes a venturi tube, titanium rod or other types of oxygenating elements, as well as an air compressor, filter, etc. The function of these devices is to increase the dissolved oxygen content in the wort to meet the needs of yeast growth and reproduction, thereby promoting the yeast to fully convert sugars and improve the quality and taste of beer. When selecting and using a wort oxygenator, factors such as equipment type, oxygen purity, and operating specifications need to be considered.

[0003] For example, the patent disclosed: CN221971530U is a wort oxygenation device for beer brewing. When in use, this utility model opens the second valve and the driving motor, and extracts the oxygen inside the oxygen cylinder into the inside of the connecting shaft through the oxygen supply pipe and the oxygen supply hole on the outer wall of the oxygen supply pipe. Then the oxygen will be transported to the inside of the fermentation box through the stirring pipe and the air outlet head. When transporting to the inside of the fermentation box, the driving motor drives the driving gear to rotate through the rotating shaft. When the driving gear rotates, the driven gear will drive the stirring pipe to rotate through the connecting shaft, thereby improving the fermentation effect and mixing efficiency.

[0004] However, since the aperture size of the oxygen supply hole arranged on the oxygen supply pipe in the above patent cannot be adjusted, the bubbles produced by oxygen in the wort are the same when oxygen is transported. However, in comparison, lager yeast has a lower demand for oxygen and mainly produces alcohol and carbon dioxide by decomposing sugars. Therefore, when brewing lager beer, the amount of oxygen introduced can be relatively small. Therefore, the oxygen supply hole with an unadjustable aperture will result in a low adaptability of the fermentation tank and cannot be used for the fermentation of different yeasts.

[0005] To this end, the present invention provides a wort oxygenation device for beer brewing. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: the wort oxygenation device for beer brewing described in the present invention comprises an oxygenation tank and an oxygen tank, and a sealing cover is provided on the oxygenation tank;

[0008] A transmission cylinder is rotatably installed inside the oxygen tank, and the oxygen tank is connected to the inner cavity of the transmission cylinder through a connecting pipe;

[0009] A hollow rotating rod is fixedly mounted on the transmission cylinder, the inner cavity of the rotating rod is connected, and an airway switching ball is rotatably mounted on the rotating rod, and a first air hole and a second air hole are opened on the airway switching ball;

[0010] A rotating rod and a control ring are provided with a sliding groove at one end close to the airway switching ball. A rotating rod is fixedly installed on the airway switching ball. One end of the rotating rod extends into the interior of the sliding groove and is fixedly installed with a transmission gear. The sliding groove and the gear ring are meshed with the transmission gear.

[0011] A guide slot is provided on the inner wall of the control ring, a moving ring is slidably mounted on the inner wall of the control ring, a guide block is fixedly mounted on the outer wall of the moving ring, and one end of the guide block extends into the interior of the guide slot.

[0012] A positioning block is fixedly installed inside the rotating rod, a pressure rod is elastically installed on the positioning block, and one end of the pressure rod penetrates the positioning block and is fixedly connected with the side wall of the moving ring.

[0013] A pull rod is fixedly installed inside the moving ring, one end of which extends to the inside of the transmission cylinder. A mounting block is provided inside the transmission cylinder, and a limiting groove is provided on the mounting block. A guide rod is fixedly installed at the bottom end of the pull rod, and one end of the guide rod extends to the inside of the limiting groove.

[0014] An operating disk is rotatably installed inside the mounting block, and an arc block used for pressing the guide rod is fixedly installed on the top of the operating disk.

[0015] A driving motor is fixedly installed inside the bottom end of the oxygen tank, a driving wheel is fixedly installed on the output shaft of the driving motor, a rotating shaft is fixedly installed on the operating panel, a driven wheel is fixedly installed on the bottom end of the rotating shaft, and the driving wheel and the driven wheel are connected by a belt.

[0016] A cross guide ring is fixedly mounted on the mounting block, a cross groove is arranged inside the cross guide ring, one end of the guide rod penetrates the cross guide ring and abuts against the top end of the operating panel.

[0017] The mounting block is slidably mounted inside the transmission cylinder, and an electromagnet for adsorbing the mounting block is fixedly mounted inside the transmission cylinder.

[0018] The rotating shaft is hollow and is connected to the connecting pipe through a sealed bearing.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. A wort oxygenation device for beer brewing described in the present invention drives the driving wheel to rotate clockwise by a driving motor, so that the rotating shaft drives the operating panel to rotate clockwise, and the arc block presses the guide rod to drive the guide rod to slide toward the center of the installation block, and the movable ring drives the guide block to slide in the guide groove, and the control ring drives the gear ring to rotate, so that the airway switching ball rotates, and the first air hole will be located at the top at this time. When the arc block rotates counterclockwise, the control ring can drive the gear ring to reverse and rotate the second air hole to the top. The airway switching ball is rotated to switch the first air hole and the second air hole, so that the oxygen output can be adaptively changed to adapt to the oxygen amount required by different yeasts.

[0021] 2. The wort oxygenation device for beer brewing described in the present invention adsorbs the mounting block through the electromagnet so that the mounting block slides downward inside the transmission cylinder. At this time, the guide rod will not abut against the operating panel, but will move up inside the mounting block and move out of the limiting groove. At this time, the guide rod is only located inside the cross guide ring. At this time, if the mounting block rotates, it will also drive the cross guide ring to rotate, and the guide rod will drive the pull rod to slide back and forth continuously, so that the airway switching ball can be reciprocated and intermittent switching between the first air hole and the second air hole can be realized continuously, so that the variability is higher and the adaptability of the oxygen tank is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a stereogram in the present invention;

[0024] Figure 2 It is a structural schematic diagram of the transmission cylinder in the present invention;

[0025] Figure 3 It is a structural schematic diagram of the rotating rod in the present invention;

[0026] Figure 4 It is a structural schematic diagram of the driving motor in the present invention;

[0027] Figure 5 The present invention Figure 4 A in the enlarged view;

[0028] Figure 6 It is a structural schematic diagram of the airway switching ball in the present invention;

[0029] Figure 7 It is a structural schematic diagram of the installation block in the present invention;

[0030] Figure 8 It is a structural schematic diagram of the arc block in the present invention.

[0031] In the figure: 1. oxygen tank; 2. oxygen tank; 3. sealing cover; 4. transmission cylinder; 5. rotating rod; 6. driving motor; 7. pull rod; 8. pressure rod; 9. control ring; 10. sliding groove; 11. moving ring; 12. guide block; 13. guide slide groove; 14. airway switching ball; 15. first air hole; 16. second air hole; 17. rotating rod; 18. transmission gear; 19. gear ring; 20. driving wheel; 21. driven wheel; 22. rotating shaft; 23. electromagnet; 24. mounting block; 25. cross guide ring; 26. guide rod; 27. operating panel; 28. arc block; 29. ​​limit groove; 30. positioning block. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] like Figures 1 to 8 As shown, a wort oxygenation device for beer brewing according to an embodiment of the present invention comprises an oxygenation tank 1 and an oxygen tank 2, and a sealing cover 3 is provided on the oxygenation tank 1;

[0034] The cover 3 is opened and the wort for brewing beer is poured in, and the oxygen in the oxygen tank 2 is sent into the oxygenation tank 1 for fermentation.

[0035] A transmission cylinder 4 is rotatably mounted inside the oxygen tank 1, and the oxygen tank 2 is connected to the inner cavity of the transmission cylinder 4 through a connecting pipe. A hollow rotating rod 5 is fixedly mounted on the transmission cylinder 4, and the rotating rod 5 is connected to the inner cavity of the transmission cylinder 4. An airway switching ball 14 is rotatably mounted on the rotating rod 5, and the airway switching ball 14 is provided with a first air hole 15 and a second air hole 16;

[0036] A plurality of rotating rods 5 are provided, and the plurality of rotating rods 5 are arranged in a ring shape on the outer wall of the transmission cylinder 4 , and the plurality of rotating rods 5 are all communicated with the inner cavity of the transmission cylinder 4 .

[0037] The oxygen tank 2 can transport oxygen to the interior of the transmission cylinder 4 through the connecting pipe. At this time, the oxygen can enter the interior of multiple rotating rods 5 at the same time, and finally be discharged into the interior of the oxygen tank 1 through the airway switching ball 14 set on the rotating rod 5 to help the yeast ferment.

[0038] The diameter of the first air hole 15 is smaller than that of the second air hole 16. A ball groove is provided inside the rotating rod 5 for the airway switching ball 14 to rotate. The oxygen in the inner cavity of the rotating rod 5 can only be discharged to the interior of the oxygen tank 1 through the first air hole 15 or the second air hole 16 on the airway switching ball 14. Since the airway switching ball 14 fits into the ball groove, the oxygen can only be discharged through the first air hole 15 or the second air hole 16.

[0039] By rotating the airway switching ball 14 to connect the first air hole 15 with the inner cavity of the oxygenation tank 1 or the second air hole 16 with the inner cavity of the oxygenation tank 1, the oxygen output can be adaptively changed to adapt to the oxygen amount required by different yeasts.

[0040] When the first air hole 15 rotates upward, the oxygen discharged through the oxygen tank 2 will enter the interior of the transmission cylinder 4 through the connecting pipe, and finally enter the rotating rod 5 and then be discharged into the interior of the oxygen tank 1 through the first air hole 15 to contact the yeast. The smaller diameter of the first air hole 15 can reduce the deoxygenation amount. When the second air hole 16 rotates upward, the deoxygenation amount can be increased, which can better cooperate with yeast that requires more oxygen.

[0041] A control ring 9 is rotatably installed inside the rotating rod 5, and a sliding groove 10 is opened at one end of the control ring 9 close to the airway switching ball 14. A rotating rod 17 is fixedly installed on the airway switching ball 14. One end of the rotating rod 17 extends to the inside of the sliding groove 10 and is fixedly installed with a transmission gear 18. A gear ring 19 is fixedly installed inside the sliding groove 10, and the gear ring 19 is meshed with the transmission gear 18.

[0042] The airway switching ball 14 can be controlled to rotate by rotating the control rod 17. The first air hole 15 and the second air hole 16 are opened adjacent to each other. Therefore, when the first air hole 15 is connected with the oxygen tank 1, it is only necessary to control the rotating rod 17 to rotate 90 degrees clockwise to rotate the second air hole 16 to the top to connect with the oxygen tank 1, and then rotate it 90 degrees counterclockwise to rotate the first air hole 15 to the top again and connect with the oxygen tank 1.

[0043] When the control ring 9 rotates, it will synchronously drive the gear ring 19 to rotate. Since the gear ring 19 is engaged with the transmission gear 18, when the control ring 9 rotates, it will drive the rotating rod 17 equipped with the transmission gear 18 to rotate through the gear ring 19, thereby realizing the control of the rotation of the airway switching ball 14. The switching between the first air hole 15 and the second air hole 16 can be realized by simply rotating the control ring 9.

[0044] As a preferred embodiment of the present invention, a guide groove 13 is provided on the inner wall of the control ring 9, a movable ring 11 is slidably installed on the inner wall of the control ring 9, a guide block 12 is fixedly installed on the outer wall of the movable ring 11, and one end of the guide block 12 extends to the inside of the guide groove 13.

[0045] Since the guide groove 13 is a groove inclined in the spiral direction, when the movable ring 11 drives the guide block 12 to slide from one end inside the guide groove 13 to the other end, the control ring 9 can be rotated, and at the same time, the gear ring 19 and the transmission gear 18 can be cooperated to control the rotation of the rotating rod 17 to realize the switching between the first air hole 15 and the second air hole 16.

[0046] When the movable ring 11 is at one end away from the airway switching ball 14 in the control ring 9, the second air hole 16 is located at the top. When the movable ring 11 drives the guide block 12 to slide in the direction of the airway switching ball 14, the guide block 12 slides inside the guide groove 13, which will cause the control ring 9 to drive the gear ring 19 to rotate, and control the rotating rod 17 to drive the airway switching ball 14 to rotate, so that the first air hole 15 is located at the top and connected to the inner cavity of the oxygen tank 1.

[0047] As a preferred embodiment of the present invention, a positioning block 30 is fixedly installed inside the rotating rod 5 , a pressure rod 8 is elastically installed on the positioning block 30 , and one end of the pressure rod 8 passes through the positioning block 30 and is fixedly connected to the side wall of the moving ring 11 .

[0048] The positioning block 30 is arranged at the end of the moving ring 11 away from the airway switching ball 14, and the pressure rod 8 is slidably installed inside the positioning block 30. A pressure spring is arranged between the pressure rod 8 and the positioning block 30. The pressure spring can make the pressure rod 8 drive the moving ring 11 to always be located at the end of the inner wall of the control ring 9 away from the airway switching ball 14. When the moving ring 11 slides toward the direction of the airway switching ball 14, the pressure rod 8 will squeeze the pressure spring, causing the pressure spring to deform and store elastic potential energy. At the same time, the elastic potential energy is released by the pressure spring, and the moving ring 11 can also be driven to reset and slide.

[0049] As a preferred embodiment of the present invention, a pull rod 7 is fixedly installed inside the movable ring 11, one end of the pull rod 7 extends to the inside of the transmission cylinder 4, a mounting block 24 is provided inside the transmission cylinder 4, a limiting groove 29 is provided on the mounting block 24, and a guide rod 26 is fixedly installed at the bottom end of the pull rod 7, one end of the guide rod 26 extends to the inside of the limiting groove 29.

[0050] By pulling the pull rod 7, the movable ring 11 can be directly driven to slide inside the control ring 9. A guide rod 26 is provided at the bottom of one end of the pull rod 7 located inside the transmission cylinder 4. Therefore, by controlling the sliding of the guide rod 26 inside the transmission cylinder 4, the sliding of the movable ring 11 can be achieved.

[0051] The length of the limit groove 29 is consistent with the length of the movable ring 11 sliding on the inner wall of the control ring 9. Therefore, when the guide rod 26 slides from one end of the limit groove 29 to the other end, the movable ring 11 can drive the guide block 12 to slide from one end of the guide groove 13 to the other end, thereby realizing the rotation of the airway switching ball 14.

[0052] As a preferred embodiment of the present invention, an operating disk 27 is rotatably mounted inside the mounting block 24 , and an arc block 28 for pressing the guide rod 26 is fixedly mounted on the top of the operating disk 27 .

[0053] When the arc block 28 slides in the direction of the guide rod 26 (rotates clockwise), the guide rod 26 can be pressed by the inclined surface of the arc block 28, so that it can slide in the direction of the center of the mounting block 24. At the same time, the guide rod 26 can simultaneously drive the pull rod 7 to slide inside the limiting groove 29, so that the moving ring 11 drives the guide block 12 to slide inside the guide slide groove 13 toward the direction of the airway switching ball 14, and drives the gear ring 19 to rotate through the control ring 9, so that the transmission gear 18 drives the rotating rod 17 to rotate, so that the airway switching ball 14 rotates, and the first air hole 15 will be located at the top. When the arc block 28 rotates counterclockwise, the moving ring 11 drives the guide rod 26 to reset and slide inside the limiting groove 29 under the action of the pressure spring, and at the same time, the moving ring 11 drives the guide block 12 to slide in the guide slide groove 13, so that the control ring 9 resets and rotates, and under the action of the gear ring 19 and the transmission gear 18, the second air hole 16 rotates to the top.

[0054] When the operating disk 27 drives the arc block 28 to rotate clockwise and presses the guide rod 26 to move it to the end of the limit groove 29, the operating disk 27 cannot continue to rotate under the action of the arc block 28. At this time, the operating disk 27 continues to rotate clockwise, and the guide rod 26 is driven by the arc block 28 to rotate the transmission cylinder 4 at the same time, and drives multiple rotating rods 5 to rotate. The rotating rod 5 drives the airway switching ball 14 to rotate, so that the ejected oxygen can spirally float in the wort, which can further increase the contact area between oxygen and wort and further improve the reaction effect.

[0055] As a preferred embodiment of the present invention, a driving motor 6 is fixedly installed inside the bottom end of the oxygen tank 1, a driving wheel 20 is fixedly installed on the output shaft of the driving motor 6, a rotating shaft 22 is fixedly installed on the operating panel 27, a driven wheel 21 is fixedly installed on the bottom end of the rotating shaft 22, and the driving wheel 20 and the driven wheel 21 are connected by a belt.

[0056] The driving motor 6 can be started to drive the driving wheel 20 to rotate, and the driven wheel 21 can be driven to rotate under the action of the belt, so as to realize the control of the rotation of the rotating shaft 22.

[0057] As a preferred embodiment of the present invention, a cross guide ring 25 is fixedly installed on the mounting block 24, a cross groove is opened inside the mounting block 24, one end of the guide rod 26 passes through the cross guide ring 25 and abuts against the top of the operating panel 27, and the mounting block 24 is slidably installed inside the transmission cylinder 4, and an electromagnet 23 for adsorbing the mounting block 24 is fixedly installed inside the transmission cylinder 4.

[0058] When the electromagnet 23 is energized, it will adsorb the mounting block 24, causing the mounting block 24 to slide downward inside the transmission cylinder 4. At this time, the guide rod 26 will not abut against the operating panel 27, but will also move up inside the mounting block 24 and move out of the limiting groove 29. At this time, the guide rod 26 is only located inside the cross guide ring 25. At this time, if the mounting block 24 rotates, it will also drive the cross guide ring 25 to rotate, and the guide rod 26 will also drive the pull rod 7 to slide back and forth continuously, so that the airway switching ball 14 can reciprocate and intermittently realize the continuous switching of the first air hole 15 and the second air hole 16, so that the variability is higher and the adaptability of the oxygen tank 1 is stronger.

[0059] As a preferred embodiment of the present invention, the rotating shaft 22 is hollow and is connected to the connecting pipe through a sealed bearing.

[0060] The connecting pipe is connected to the rotating shaft 22 via a sealed bearing, so that the normal oxygen supply of the oxygen tank 2 is not affected when the rotating shaft 22 rotates.

[0061] Working principle: By starting the driving motor 6, the driving wheel 20 can be driven to rotate, and under the action of the belt, the driven wheel 21 can be driven to rotate, so that the rotating shaft 22 drives the operating disk 27 to rotate clockwise, and the guide rod 26 can be pressed by the inclined surface of the arc block 28, so that it can slide toward the center of the mounting block 24. At the same time, the guide rod 26 can simultaneously drive the pull rod 7 to slide inside the limit groove 29, so that the moving ring 11 drives the guide block 12 to slide inside the guide slide groove 13 toward the direction of the airway switching ball 14, and the gear ring 19 is driven to rotate by the control ring 9, so that the transmission gear 18 drives the rotating rod 17 to rotate, so that the airway switch When the ball 14 rotates, the first air hole 15 will be located at the top. When the arc block 28 rotates counterclockwise, the movable ring 11, under the action of the top pressure spring, drives the guide rod 26 to reset and slide inside the limit groove 29. At the same time, the movable ring 11 drives the guide block 12 to slide in the guide slide groove 13, so that the control ring 9 resets and rotates, and under the action of the gear ring 19 and the transmission gear 18, the second air hole 16 rotates to the top. By rotating the airway switching ball 14, the first air hole 15 is connected to the inner cavity of the oxygen tank 1 or the second air hole 16 is connected to the inner cavity of the oxygen tank 1, the oxygen output can be adaptively changed to adapt to the oxygen amount required by different yeasts.

[0062] When the electromagnet 23 is energized, it will adsorb the mounting block 24, causing the mounting block 24 to slide downward inside the transmission cylinder 4. At this time, the guide rod 26 will not abut against the operating panel 27, but will also move up inside the mounting block 24 and move out of the limiting groove 29. At this time, the guide rod 26 is only located inside the cross guide ring 25. At this time, if the mounting block 24 rotates, it will also drive the cross guide ring 25 to rotate, and the guide rod 26 will also drive the pull rod 7 to slide back and forth continuously, so that the airway switching ball 14 can reciprocate and intermittently realize the continuous switching of the first air hole 15 and the second air hole 16, so that the variability is higher and the adaptability of the oxygen tank 1 is stronger.

[0063] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0064] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0065] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A wort oxygenation device for beer brewing, characterized in that: It comprises an oxygen tank (1) and an oxygen tank (2), wherein the oxygen tank (1) is provided with a sealing cover (3); A transmission cylinder (4) is rotatably mounted inside the oxygen tank (1), and the oxygen tank (2) is connected to the inner cavity of the transmission cylinder (4) via a connecting pipe; A hollow rotating rod (5) is fixedly mounted on the transmission cylinder (4), the rotating rod (5) is in communication with the inner cavity of the transmission cylinder (4), an airway switching ball (14) is rotatably mounted on the rotating rod (5), and a first air hole (15) and a second air hole (16) are formed on the airway switching ball (14); A control ring (9) is rotatably mounted inside the rotating rod (5); a sliding groove (10) is formed at one end of the control ring (9) close to the airway switching ball (14); a rotating rod (17) is fixedly mounted on the airway switching ball (14); one end of the rotating rod (17) extends into the interior of the sliding groove (10) and is fixedly mounted with a transmission gear (18); a gear ring (19) is fixedly mounted inside the sliding groove (10); the gear ring (19) meshes with the transmission gear (18); The inner wall of the control ring (9) is provided with a guide slot (13), a movable ring (11) is slidably mounted on the inner wall of the control ring (9), a guide block (12) is fixedly mounted on the outer wall of the movable ring (11), and one end of the guide block (12) extends into the interior of the guide slot (13); A positioning block (30) is fixedly mounted inside the rotating rod (5), a pressure rod (8) is elastically mounted on the positioning block (30), and one end of the pressure rod (8) passes through the positioning block (30) and is fixedly connected to the side wall of the moving ring (11); A pull rod (7) is fixedly mounted inside the movable ring (11), one end of the pull rod (7) extends to the inside of the transmission cylinder (4), a mounting block (24) is provided inside the transmission cylinder (4), a limiting groove (29) is provided on the mounting block (24), a guide rod (26) is fixedly mounted on the bottom end of the pull rod (7), one end of the guide rod (26) extends to the inside of the limiting groove (29); An operating disk (27) is rotatably mounted inside the mounting block (24), and an arc-shaped block (28) for pressing the guide rod (26) is fixedly mounted on the top of the operating disk (27); A driving motor (6) is fixedly mounted inside the bottom end of the oxygen supply tank (1); a driving wheel (20) is fixedly mounted on the output shaft of the driving motor (6); a rotating shaft (22) is fixedly mounted on the operating panel (27); a driven wheel (21) is fixedly mounted on the bottom end of the rotating shaft (22); and the driving wheel (20) and the driven wheel (21) are connected via a belt; The diameter of the first air hole (15) is smaller than the diameter of the second air hole (16).

2. A wort oxygenation device for beer brewing according to claim 1, characterized in that: A cross guide ring (25) is fixedly mounted on the mounting block (24) and has a cross-shaped groove therein. One end of the guide rod (26) passes through the cross guide ring (25) and abuts against the top end of the operating panel (27).

3. A wort oxygenation device for beer brewing according to claim 2, characterized in that: The mounting block (24) is slidably mounted inside the transmission cylinder (4), and an electromagnet (23) for adsorbing the mounting block (24) is fixedly mounted inside the transmission cylinder (4).

4. A wort oxygenation device for beer brewing according to claim 3, characterized in that: The rotating shaft (22) is hollow, and the rotating shaft (22) is connected to the connecting pipe via a sealed bearing.

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