A fermentation tank for edible vinegar

Abstract

This invention relates to the field of edible vinegar fermentation technology and provides an edible vinegar fermentation tank, including a support and a fermentation tank. One end of the fermentation tank is threadedly connected to a sealing cap. The tank also includes two symmetrically fixed connecting shafts on its side wall, which are rotatably connected to the two side walls of the support. The support is equipped with a reciprocating inverting mechanism, which drives the fermentation tank to rotate 180° in both directions. When the stirring shaft drives the blades, the blades can generate an upward lifting force on the raw materials, further improving the fluidity of the materials, making them more porous, and preventing clumping. Furthermore, when the fermentation tank rotates, the blade adjustment mechanism adjusts the blade angle by rotating the fermentation tank. Therefore, regardless of which end of the fermentation tank is at the top, the blades will move the raw materials upwards. The blade angle adjusts with the rotation of the fermentation tank, thus achieving the effect of changing the fermentation tank without the need to transfer the raw materials.

Description

Technical Field

[0001] This invention belongs to the field of edible vinegar fermentation technology, and in particular relates to an edible vinegar fermentation tank. Background Technology

[0002] Edible vinegar is mainly made from rice or sorghum. Proper fermentation can convert liquids containing carbohydrates (sugar, starch) into alcohol and carbon dioxide. The alcohol then combines with oxygen in the air under the action of certain bacteria to produce acetic acid and water.

[0003] In the current method of fermenting edible vinegar, the raw materials are put into a vat. Every once in a while, the raw materials in the vat need to be transferred to another vat. Tools such as forks are used to move the raw materials from one vat to another. When transferring the raw materials, the raw materials at the top can be moved to the bottom. At the same time, the raw materials can be fully exposed to air. In addition, the raw materials can be prevented from piling up, making them looser and improving the fermentation efficiency.

[0004] While the above method can reverse the position of the raw materials in the tank and improve fermentation efficiency, it requires high labor intensity and labor costs for workers when changing tanks. Furthermore, when changing tanks, the raw materials come into direct contact with the air, and the bacteria in the air can affect the fermentation of the raw materials, thus requiring a high level of environmental control in the factory. Summary of the Invention

[0005] The purpose of this invention is to provide an edible vinegar fermentation tank, which aims to solve the problems of high labor intensity for workers and the impact of airborne bacteria on the fermentation of raw materials when changing tanks.

[0006] This invention is implemented as follows: an edible vinegar fermentation tank includes a support frame and a fermentation tank. One end of the fermentation tank is threadedly connected to a sealing cap. The tank also includes two symmetrically fixed connecting shafts on its sidewalls, each rotatably connected to one of the two sidewalls of the support frame. The support frame is equipped with a reciprocating inverting mechanism, which drives the fermentation tank to rotate 180° in both directions. A first rotating shaft is rotatably connected inside the fermentation tank. Three stirring shafts are rotatably connected to the first rotating shaft along its length. Each of the three stirring shafts has blades fixed to it, and the three blades are staggered in their projection along the first rotating shaft. The fermentation tank is equipped with a rotating assembly and blades. The adjustment mechanism includes a rotating component that drives the first rotating shaft to rotate, and a blade adjustment mechanism that adjusts the blade angle by rotating the fermentation tank. Air inlets are located near both ends of the side wall of the fermentation tank. A filter screen is fixed to one end of each air inlet near the inner wall of the fermentation tank, and an air purification device is fixed to the other end of each air inlet. The air purification device filters the air entering the air inlet. A sliding groove is provided on the side wall of the fermentation tank at the air inlet, and a sliding sealing plate is slidably connected within the groove. An opening and closing mechanism is provided on the fermentation tank; when the fermentation tank rotates, the opening and closing mechanism moves the sliding sealing plate and opens the air inlet located at the upper end of the fermentation tank.

[0007] A further technical solution includes a first gear fixed on one of the connecting shafts, a sector toothed plate rotatably connected to the side wall of the support, and the sector toothed plate meshing with the first gear. A swinging component is provided on the side wall of the support, and the swinging component is used to drive the sector toothed plate to swing back and forth.

[0008] In a further technical solution, the swing assembly includes an elongated hole on a fan-shaped toothed plate, a drive disk rotatably connected to the side wall of the bracket, a push shaft fixed on the drive disk, the push shaft slidably connected in the elongated hole, and a first motor fixed on the inner wall of the bracket, the rotating end of the first motor being connected to the drive disk.

[0009] In a further technical solution, the rotating assembly includes an L-shaped fixing plate fixed on the fermenter at the end away from the sealing cover, a second motor fixed on the L-shaped fixing plate, a third gear connected to the rotating end of the second motor, one end of the first rotating shaft passing through the fermenter and fixed with the second gear, and the second gear meshing with the third gear.

[0010] A further technical solution includes a second rotating shaft rotatably connected to the side wall of the fermentation tank. A first mounting groove is provided near both ends of the fermentation tank. A retractable sleeve is provided in each of the two first mounting grooves. The retractable sleeve is fixed to the second rotating shaft. A spring is provided in the sliding groove. A pull rope is fixed to the retractable sleeve, and the end of the pull rope is connected to a sliding sealing plate. A first transmission assembly is provided on the bracket. The first transmission assembly overcomes the spring force and drives the second rotating shaft to rotate by rotating the fermentation tank upwards.

[0011] In a further technical solution, the first transmission component includes a fourth gear fixed on both of the two second rotating shafts, and a third gear fixed on the inner wall of the bracket, wherein the third gear meshes with both fourth gears simultaneously.

[0012] A further technical solution includes a first sliding rod slidably connected within a first rotating shaft. The first rotating shaft has three second mounting slots, each containing a rack and a fifth gear. The rack is fixed to the side wall of the first sliding rod, and the fifth gear is fixed to the stirring shaft. The rack meshes with the fifth gear. The fermenter has a lifting structure that drives the stirring shaft to rotate by rotating the fermenter.

[0013] A further technical solution includes a lifting structure comprising a fixed frame fixed to the end of the fermenter away from the sealing cover, a lead screw rotatably connected to the fixed frame, a second sliding rod slidably connected to the fixed frame, the second sliding rod having a threaded through hole that mates with the lead screw, a groove being provided at the end of the first rotating shaft near the fixed frame, the second sliding rod extending into the groove of the first rotating shaft, a rotating sleeve rotatably connected to the end of the second sliding rod located in the groove, the rotating sleeve being rotatably connected to the first sliding rod, and a belt drive assembly being provided on the fixed frame, the belt drive assembly driving the lead screw to rotate by rotating the fermenter.

[0014] In a further technical solution, the belt drive assembly includes a drive shaft rotatably connected to a fixed frame. A first pulley and a second pulley are respectively fixed to one of the second rotating shafts. The first pulley and the second pulley are connected by a belt drive. A bevel gear drive assembly is provided on the drive shaft, and the drive shaft is connected to a second sliding rod through the bevel gear drive assembly.

[0015] In a further technical solution, the bevel gear transmission assembly includes a first bevel gear and a second bevel gear fixed on a transmission shaft and a lead screw, respectively, with the first bevel gear meshing with the second bevel gear.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This invention provides an edible vinegar fermentation tank. A reciprocating inverting mechanism drives a connecting shaft to rotate 180° in both directions, causing the fermentation tank to rotate 180°. This positions the raw material at the bottom of the tank at the top, preventing liquid from settling and improving fermentation efficiency. A rotating component drives a first rotating shaft, which in turn drives three stirring shafts. These shafts then rotate blades, causing the raw material to be stirred and flowed. The blades are angled, and when the stirring shafts drive the blades, they generate an upward lifting force on the raw material, further improving its fluidity and making it more porous, preventing clumping. As the fermentation tank rotates, a blade adjustment mechanism adjusts the blade angle accordingly. This ensures that regardless of which end of the tank is at the top, the blades will always move the raw material upwards. The blade angle adjusts with the rotation of the fermentation tank, achieving the effect of changing the fermentation tank without the need for manual transfer. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an edible vinegar fermentation tank provided by the present invention;

[0019] Figure 2 Provided by the present invention Figure 1 A structural diagram from the main viewpoint;

[0020] Figure 3 Provided by the present invention Figure 2 A structural diagram from the perspective of AA (Anti-Analog Devices).

[0021] Figure 4 Provided by the present invention Figure 3 A magnified structural diagram of B in the diagram;

[0022] Figure 5 Provided by the present invention Figure 3 Schematic diagram of the internal structure of the fermentation tank;

[0023] Figure 6 Provided by the present invention Figure 5 A magnified structural diagram of C;

[0024] Figure 7 Provided by the present invention Figure 5 A schematic diagram of the partial internal structure of the first rotating shaft;

[0025] Figure 8 Provided by the present invention Figure 7 A magnified structural diagram of D in the diagram.

[0026] In the attached diagram: Support-101, Fermentation tank-102, Connecting shaft-103, Sealing cover-104, First rotating shaft-105, Stirring shaft-106, Blade-107, Air inlet-108, Filter screen-109, Slide groove-110, Sliding sealing plate-111, Reciprocating inverting mechanism-2, First gear-201, Sector toothed plate-202, Oscillating assembly-3, Elongated hole-301, Drive disc-302, Push shaft-303, First motor-304, Rotating assembly-4, Second gear-401, L-shaped fixing plate-402, Second motor-403, Third gear-404, Opening and closing mechanism-5, Second rotating shaft-501, ... 502 Mounting slot, 503 Retractable sleeve, 504 Pull rope, 505 Spring, 6 First transmission assembly, 601 Third gear, 602 Fourth gear, 7 Blade adjustment mechanism, 701 First sliding rod, 702 Second mounting slot, 703 Rack, 704 Fifth gear, 8 Lifting structure, 801 Fixed frame, 802 Lead screw, 803 Second sliding rod, 804 Rotating sleeve, 9 Belt transmission assembly, 901 Transmission shaft, 902 First pulley, 903 Belt, 904 Second pulley, 10 Bevel gear transmission assembly, 10 First bevel gear, 1002 Second bevel gear. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0028] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0029] like Figures 1-8As shown, an embodiment of the present invention provides a vinegar fermentation tank, including a support 101 and a fermentation tank 102. One end of the fermentation tank 102 is threadedly connected to a sealing cap 104. The tank also includes two symmetrically fixed connecting shafts 103 on the side wall of the fermentation tank 102, which are rotatably connected to the two side walls of the support 101. A reciprocating inversion mechanism 2 is provided on the support 101, which drives the fermentation tank 102 to rotate 180° in both directions. A first rotating shaft 105 is rotatably connected inside the fermentation tank 102. Three stirring shafts 106 are rotatably connected to the first rotating shaft 105 along its length. Each of the three stirring shafts 106 has a fixed blade 107, and the three blades 107 are staggered in projection along the direction of the first rotating shaft 105. A rotating assembly 4 and a blade adjustment mechanism 7 are provided on the fermentation tank 102. The rotating assembly 4 drives the first rotating shaft 105 to rotate. The blade adjustment mechanism 7 adjusts the angle of the blades 107 by rotating the fermentation tank 102. Air inlets 108 are provided on the side wall of the fermentation tank 102 near both ends. A filter screen 109 is fixed to one end of the air inlet 108 near the inner wall of the fermentation tank 102, and an air purification device is fixed to the other end of the air inlet 108. The air purification device is existing technology and filters out bacteria and dust in the air, thereby reducing the impact of the factory environment on the fermentation of raw materials. A sliding groove 110 is provided on the side wall of the fermentation tank 102 at the air inlet 108. A sliding sealing plate 111 is slidably connected in the sliding groove 110. An opening and closing mechanism 5 is provided on the fermentation tank 102. When the fermentation tank 102 rotates, the opening and closing mechanism 5 drives the sliding sealing plate 111 to move and open the air inlet 108 at the upper end of the fermentation tank 102.

[0030] In this embodiment of the invention, during use, the sealing cap 104 is unscrewed, raw materials are added to the fermentation tank 102, and then the sealing cap 104 is screwed back on. When a "tank transfer operation" is required, the reciprocating inverting mechanism 2 drives the connecting shaft 103 to rotate 180° in both directions. The connecting shaft 103 drives the fermentation tank 102 to rotate 108°, thereby placing the raw materials at the bottom of the fermentation tank 102 at the top, thus preventing the liquid in the raw materials from settling to the bottom and improving the fermentation efficiency of the raw materials. The rotating component 4 drives the first rotating shaft 105 to rotate, the first rotating shaft 105 drives the three stirring shafts 106 to rotate, and the three stirring shafts 106 drive the blades 107 to rotate, thereby causing the stirring shafts 106 and the blades 107 to stir the raw materials, making the raw materials flow and thus transporting the raw materials. The blades 107 are at an angle, and when the stirring shafts 106 drive the blades 107, the blades 107 can generate a directional force on the raw materials. The upward lifting force further improves the fluidity of the raw materials, making them more loose and preventing them from accumulating and clumping. When the fermentation tank 102 rotates, the blade adjustment mechanism 7 adjusts the angle of the blades 107 by rotating the fermentation tank 102. Thus, regardless of which end of the fermentation tank 102 is at the top, the blades 107 will move the raw materials upward. The angle of the blades 107 is adjusted according to the rotation of the fermentation tank 102. When the fermentation tank 102 rotates, the opening and closing mechanism 5 drives the sliding sealing plate 111 to move and open the air inlet 108 at the top of the fermentation tank 102. This prevents the raw materials from leaking out of the air inlet 108 when the fermentation tank 102 is opened. The filtered air enters the fermentation tank 102 through the air inlet 108, increasing the oxygen content in the fermentation tank 102 and improving the fermentation efficiency of the raw materials. Thus, the effect of changing the fermentation tank can be achieved without changing the raw materials.

[0031] like Figures 1-2 As shown, in a preferred embodiment of the present invention, the reciprocating inverting mechanism 2 includes a first gear 201 fixed on one of the connecting shafts 103, a sector toothed plate 202 rotatably connected to the side wall of the support 101, and the sector toothed plate 202 meshing with the first gear 201, and a swing assembly 3 provided on the side wall of the support 101, the swing assembly 3 being used to drive the sector toothed plate 202 to swing back and forth; the swing assembly 3 includes an elongated hole 301 provided on the sector toothed plate 202, a drive disk 302 rotatably connected to the side wall of the support 101, a push shaft 303 fixed on the drive disk 302, the push shaft 303 being slidably connected in the elongated hole 301, and a first motor 304 fixed on the inner wall of the support 101, the rotating end of the first motor 304 being connected to the drive disk 302.

[0032] In this embodiment of the invention, the first motor 304 drives the drive disk 302 to rotate, the drive disk 302 drives the push shaft 303 to revolve, the revolving push shaft 303, in conjunction with the elongated hole 301, can drive the sector tooth plate 202 to swing back and forth, the sector tooth plate 202 drives the first gear 201 to rotate back and forth, and the first gear 201 drives the connecting shaft 103 to rotate back and forth.

[0033] like Figures 1-5 As shown, in a preferred embodiment of the present invention, the rotating assembly 4 includes an L-shaped fixing plate 402 fixed on the fermentation tank 102 at one end away from the sealing cover 104. A second motor 403 is fixed on the L-shaped fixing plate 402. A third gear 404 is connected to the rotating end of the second motor 403. One end of the first rotating shaft 105 passes through the fermentation tank 102 and is fixed with a second gear 401. The second gear 401 meshes with the third gear 404.

[0034] In this embodiment of the invention, the second motor 403 drives the third gear 404 to rotate, the third gear 404 drives the second gear 401 to rotate, and the second gear 401 drives the first rotating shaft 105 to rotate.

[0035] like Figures 1-7 As shown, in a preferred embodiment of the present invention, the opening and closing mechanism 5 includes a second rotating shaft 501 rotatably connected to the side wall of the fermentation tank 102. A first mounting groove 502 is provided near both ends of the fermentation tank 102. A retractable sleeve 503 is provided in each of the two first mounting grooves 502. The retractable sleeve 503 is fixed to the second rotating shaft 501. A spring 505 is provided in the sliding groove 110. A pull rope 504 is fixed to the retractable sleeve 503. The end of the pull rope 504 is connected to the sliding sealing plate 111. A first transmission assembly 6 is provided on the bracket 101. The first transmission assembly 6 overcomes the elastic force of the spring 505 and drives the second rotating shaft 501 to rotate by rotating the fermentation tank 102 upwards. The first transmission assembly 6 includes a fourth gear 602 fixed to both second rotating shafts 501. A third gear 601 is fixed to the inner wall of the bracket 101, and the third gear 601 meshes with both fourth gears 602 simultaneously.

[0036] In this embodiment of the invention, the spring 505 pushes the sliding sealing plate 111 to move, causing the sliding sealing plate 111 to block the air inlet 108. When the fermentation tank 102 rotates, the fourth gear 602 rotates relative to the third gear 601, which in turn causes the third gear 601 to push the fourth gear 602 to rotate. The fourth gear 602 drives the second rotating shaft 501 to rotate, and the second rotating shaft 501 drives the take-up sleeve 503 to rotate. The take-up sleeve 503 winds up the pull rope 504. When the fermentation tank 102 drives the air inlet 108 to rotate above the connecting shaft 103, the pull rope 504 overcomes the elastic force of the spring 505 and pulls the sliding sealing plate 111, causing the sliding sealing plate 111 to open the air inlet 108. Similarly, when the fermentation tank 102 reverses, the take-up sleeve 503 releases the pull rope 504, and the spring 505 pushes the sliding sealing plate 111 to move, causing the sliding sealing plate 111 to block the air inlet 108.

[0037] like Figures 1-8As shown, in a preferred embodiment of the present invention, the blade adjusting mechanism 7 includes a first sliding rod 701 slidably connected within a first rotating shaft 105. Three second mounting slots 702 are provided within the first rotating shaft 105. Each of the three second mounting slots 702 contains a rack 703 and a fifth gear 704. The rack 703 is fixed to the side wall of the first sliding rod 701, and the fifth gear 704 is fixed to the stirring shaft 106. The rack 703 meshes with the fifth gear 704. The fermentation tank 102 is equipped with... A lifting structure 8 is provided, which drives the stirring shaft 106 to rotate by rotating the fermentation tank 102. The lifting structure 8 includes a fixed frame 801 fixed to one end of the fermentation tank 102 away from the sealing cover 104. A lead screw 802 is rotatably connected to the fixed frame 801, and a second sliding rod 803 is slidably connected to the fixed frame 801. The second sliding rod 803 has a threaded through hole that engages with the lead screw 802. A groove is provided at one end of the first rotating shaft 105 near the fixed frame 801. A rod 803 extends into the settling groove of the first rotating shaft 105. A rotating sleeve 804 is rotatably connected to one end of the second sliding rod 803 located in the settling groove. The rotating sleeve 804 is rotatably connected to the first sliding rod 701. A belt drive assembly 9 is provided on the fixed frame 801. The belt drive assembly 9 drives the lead screw 802 to rotate by rotating the fermentation tank 102. The belt drive assembly 9 includes a drive shaft 901 rotatably connected to the fixed frame 801. The drive shaft 901 and one of the second rotating shafts 501 are respectively fixed with a first... A first pulley 902 and a second pulley 904 are connected by a belt 903. A bevel gear transmission assembly 10 is provided on the transmission shaft 901, and the transmission shaft 901 is connected to a second sliding rod 803 through the bevel gear transmission assembly 10. The bevel gear transmission assembly 10 includes a first bevel gear 1001 and a second bevel gear 1002 fixed on the transmission shaft 901 and the lead screw 802, respectively, and the first bevel gear 1001 and the second bevel gear 1002 mesh with each other.

[0038] In this embodiment of the invention, when the fermentation tank 102 rotates, the second rotating shaft 501 drives the second pulley 904 to rotate, the second pulley 904 drives the first pulley 902 to rotate via the belt 903, the first pulley 902 drives the transmission shaft 901 to rotate, the transmission shaft 901 drives the first bevel gear 1001 to rotate, the first bevel gear 1001 drives the second bevel gear 1002 to rotate, the second bevel gear 1002 drives the lead screw 802 to rotate, the lead screw 802 drives the second sliding rod 803 to move via the threaded transmission, the second sliding rod 803 drives the first sliding rod 701 to move via the rotating sleeve 804, the first sliding rod 701 drives the rack 703 to move, the rack 703 drives the fifth gear 704 to rotate, and the fifth gear 704 drives the stirring shaft 106 to rotate.

[0039] The above embodiments of the present invention provide an edible vinegar fermentation tank. In use, the sealing cap 104 is unscrewed, raw materials are added to the fermentation tank 102, and then the sealing cap 104 is screwed back on. When a "tank transfer operation" is required, the first motor 304 drives the drive disc 302 to rotate. The drive disc 302 drives the push shaft 303 to revolve. The revolving push shaft 303, in conjunction with the elongated hole 301, drives the sector-shaped toothed plate 202 to oscillate back and forth. The sector-shaped toothed plate 202 drives the first gear 201 to revolve back and forth. The first gear 201 drives the connecting shaft 103 to rotate 180° forward and backward. The connecting shaft 103 drives the fermentation tank 102 to rotate 108°, thereby placing the raw materials at the bottom of the fermentation tank 102 at the top, thus preventing the liquid in the raw materials from settling to the bottom and improving the efficiency of the fermentation process. Fermentation efficiency is improved by the second motor 403 driving the third gear 404, which in turn drives the second gear 401, which in turn drives the first rotating shaft 105, which in turn drives three stirring shafts 106, which in turn drive blades 107. This stirring and mixing of the raw materials by the stirring shafts 106 and blades 107 promotes material flow and transport. The blades 107 are angled, and when the stirring shafts 106 drive the blades 107, the blades exert an upward lifting force on the raw materials, further improving their flowability and making them more porous, preventing clumping. Furthermore, when the fermentation tank 102 rotates, the fourth gear 602 rotates relative to the third gear 601, further... The third gear 601 drives the fourth gear 602 to rotate, which in turn drives the second rotating shaft 501 to rotate. The second rotating shaft 501 drives the second pulley 904 to rotate, which in turn drives the first pulley 902 via a belt 903. The first pulley 902 drives the transmission shaft 901 to rotate, which in turn drives the first bevel gear 1001 to rotate. The first bevel gear 1001 drives the second bevel gear 1002 to rotate, which in turn drives the lead screw 802 to rotate. The lead screw 802 drives the second sliding rod 803 to move via a threaded transmission. The second sliding rod 803 drives the first sliding rod 701 to move via a rotating sleeve 804, which in turn drives the rack 703 to move. The fifth gear 704 is driven by the 703 motor, which in turn drives the stirring shaft 106. The stirring shaft 106 then drives the adjusting blade 107 to rotate, thus adjusting the angle of the blade 107. This ensures that regardless of which end of the fermentation tank 102 is in the upper position, the blade 107 will move the raw materials upwards. The angle of the blade 107 adjusts according to the rotation of the fermentation tank 102. As the fermentation tank 102 rotates, the fourth gear 602 rotates relative to the third gear 601, causing the third gear 601 to push the fourth gear 602 to rotate. The fourth gear 602 drives the second rotating shaft 501 to rotate, which in turn drives the winding sleeve 503 to rotate, thus winding up the pull rope 504.When the fermenter 102 rotates the air inlet 108 above the connecting shaft 103, the pull rope 504 overcomes the elasticity of the spring 505 and pulls the sliding seal plate 111, causing the sliding seal plate 111 to open the air inlet 108. This prevents the raw material from leaking out of the fermenter 102 through the air inlet 108 when the fermenter 102 is opened. Filtered air enters the fermenter 102 through the air inlet 108, increasing the oxygen content inside the fermenter 102 and improving the fermentation efficiency of the raw material. This achieves the effect of changing the fermenter without the need for changing the raw material.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vinegar fermentation tank, comprising a support frame and a fermentation tank, wherein one end of the fermentation tank is threadedly connected to a sealing cap, characterized in that, Also includes: Two connecting shafts are symmetrically fixed on the side wall of the fermenter, and the two connecting shafts are respectively rotatably connected to the two side walls of the support. The support is equipped with a reciprocating inverting mechanism, which is used to drive the fermentation tank to rotate 180° in both directions. The fermenter is rotatably connected to a first rotating shaft, and three stirring shafts are rotatably connected to the first rotating shaft along its length. Each of the three stirring shafts is fixed with blades, and the three blades are staggered when projected along the direction of the first rotating shaft. The fermenter is equipped with a rotating component and a blade adjustment mechanism. The rotating component is used to drive the first rotating shaft to rotate, and the blade adjustment mechanism adjusts the angle of the blade by rotating the fermenter. The fermentation tank has air inlets near both ends on its side wall. A filter screen is fixed to one end of the air inlet near the inner wall of the fermentation tank, and an air purification device is fixed to the other end of the air inlet. The air purification device is used to filter the air entering the air inlet. A sliding groove is provided on the side wall of the fermenter at the air inlet, and a sliding sealing plate is slidably connected in the sliding groove. An opening and closing mechanism is provided on the fermenter. When the fermenter rotates, the opening and closing mechanism drives the sliding sealing plate to move and opens the air inlet at the upper end of the fermenter. The opening and closing mechanism includes a second rotating shaft rotatably connected to the side wall of the fermentation tank. A first mounting groove is provided near both ends of the fermentation tank. A retractable sleeve is provided in each of the two first mounting grooves. The retractable sleeve is fixed on the second rotating shaft. A spring is provided in the sliding groove. A pull rope is fixed on the retractable sleeve. The end of the pull rope is connected to the sliding sealing plate. A first transmission component is provided on the bracket. The first transmission component overcomes the elastic force of the spring and drives the second rotating shaft to rotate by rotating the fermentation tank upward. The first transmission assembly includes a fourth gear fixed on two second rotating shafts, and a third gear fixed on the inner wall of the bracket, and the third gear meshes with the two fourth gears simultaneously. The reciprocating inverting mechanism includes a first gear fixed on one of the connecting shafts, a sector toothed plate rotatably connected to the side wall of the bracket and meshing with the first gear, and a swinging component provided on the side wall of the bracket, the swinging component being used to drive the sector toothed plate to swing back and forth. The blade adjustment mechanism includes a first sliding rod slidably connected inside a first rotating shaft. The first rotating shaft is provided with three second mounting slots, each of which is provided with a rack and a fifth gear. The rack is fixed to the side wall of the first sliding rod, and the fifth gear is fixed to the stirring shaft. The rack meshes with the fifth gear. The fermentation tank is provided with a lifting structure, which drives the stirring shaft to rotate by rotating the fermentation tank.

2. The edible vinegar fermentation tank according to claim 1, characterized in that, The swing assembly includes an elongated hole on a fan-shaped toothed plate, a drive disk rotatably connected to the side wall of the bracket, a push shaft fixed on the drive disk, the push shaft slidably connected in the elongated hole, and a first motor fixed on the inner wall of the bracket, the rotating end of the first motor being connected to the drive disk.

3. The edible vinegar fermentation tank according to claim 1, characterized in that, The rotating assembly includes an L-shaped fixing plate fixed on the fermenter at one end away from the sealing cover. A second motor is fixed on the L-shaped fixing plate. A third gear is connected to the rotating end of the second motor. One end of the first rotating shaft passes through the fermenter and is fixed with the second gear. The second gear meshes with the third gear.

4. The edible vinegar fermentation tank according to claim 1, characterized in that, The lifting structure includes a fixed frame fixed to the end of the fermentation tank away from the sealing cover. A lead screw is rotatably connected to the fixed frame, and a second sliding rod is slidably connected to the fixed frame. The second sliding rod has a threaded through hole that mates with the lead screw. A groove is provided at the end of the first rotating shaft near the fixed frame. The second sliding rod extends into the groove of the first rotating shaft. A rotating sleeve is rotatably connected to the end of the second sliding rod located in the groove. The rotating sleeve is rotatably connected to the first sliding rod. A belt drive assembly is provided on the fixed frame. The belt drive assembly drives the lead screw to rotate by rotating the fermentation tank.

5. The edible vinegar fermentation tank according to claim 4, characterized in that, The belt drive assembly includes a drive shaft rotatably connected to a fixed frame. A first pulley and a second pulley are respectively fixed to one of the second rotating shafts. The first pulley and the second pulley are connected by a belt drive. A bevel gear drive assembly is provided on the drive shaft, and the drive shaft is connected to a second sliding rod through the bevel gear drive assembly.

6. The edible vinegar fermentation tank according to claim 5, characterized in that, The bevel gear transmission assembly includes a first bevel gear and a second bevel gear fixed on a transmission shaft and a lead screw, respectively, with the first bevel gear meshing with the second bevel gear.

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