Soil biological bacterium fermentation device

Abstract

The invention relates to the technical field of fermentation devices, in particular to a soil biological bacterium fermentation device which comprises a rack, a fermentation tank fixed to the rack, a feeding pipe fixed to the fermentation tank, a rotating rod rotationally arranged in the fermentation tank, a stirring paddle fixed to the rotating rod and used for stirring materials in the fermentation tank, and a clamping groove formed in the stirring paddle. A lifting plate is movably clamped in the clamping groove, one end of the lifting plate is hinged to the stirring paddle, an aeration hole is formed in the bottom wall of the interior of the clamping groove, the rotating rod is of a structure with the hollow interior and the closed bottom end and is communicated with the clamping groove, a piston mechanism used for extracting external air into the rotating rod and then conveying the air to the aeration hole is arranged on the rack, and a discharging pipe is fixed to the bottom of the fermentation tank. According to the aerobic and facultative anaerobic microorganism fermentation device, sufficient oxygen needed in the fermentation process of aerobic and facultative anaerobic microorganisms can be guaranteed, and meanwhile CO2 overflow during fermentation is facilitated, so that oxygen deficiency in excrement and inhibition of thallus growth and metabolism due to too high accumulation of CO2 concentration are avoided, and the fermentation efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fermentation device, in particular to a soil biological bacteria fermentation device. BACKGROUND

[0002] Soil microorganisms are the core drivers of soil ecosystem health and fertility. In recent years, the use of beneficial microorganisms to prepare biological fertilizers, bioremediation agents, soil conditioners and other products has shown great application prospects and market potential in sustainable agriculture and ecological restoration due to its significant advantages such as improving nutrient utilization, promoting plant growth, inhibiting soil-borne diseases, improving soil structure, reducing dependence on chemical fertilizers and pesticides, and being environmentally friendly. Large-scale, efficient and stable production of high-activity and high-concentration target microbial agents is a key prerequisite for industrial application. Manure treatment is an indispensable part of modern animal husbandry, aiming to reduce environmental pollution, achieve resource recycling and ensure public health and safety. The microorganisms produced after fermentation of manure from farms can be used as functional microbial communities beneficial to soil.

[0003] Manure from farms is usually first subjected to anaerobic fermentation after accumulating to a certain volume, using microorganisms in the manure to decompose organic matter in the manure. After anaerobic fermentation, the manure is subjected to secondary aerobic treatment and then combined with soil to serve as a safe fertilizer and soil conditioner. The accumulation process during fermentation is relatively long, and the manure may dry out. Therefore, mixing treatment is needed during fermentation to increase the surface area of the material and facilitate the contact and decomposition of microorganisms.

[0004] Therefore, a drum-type fermentation device is disclosed in a Chinese patent (application number 201310152016.X), which uses a rotatable fermentation tank and a spiral knife to extrude manure from both ends to the middle of the fermentation device. However, the fermentation process of aerobic and facultative anaerobic microorganisms requires sufficient oxygen and the discharge of CO2 during the actual fermentation process. Traditional static stacking fermentation (such as composting) or simple turning equipment may cause oxygen deficiency in the interior of the material. Therefore, a soil biological bacteria fermentation device is provided to solve the above-mentioned problems. SUMMARY

[0005] The present application aims to provide a soil biological bacteria fermentation device to solve the problem of insufficient oxygen and CO2 discharge during the fermentation process of aerobic and facultative anaerobic microorganisms in the actual fermentation process of manure using the existing soil biological bacteria fermentation device in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: The utility model provides a kind of soil biological bacteria fermentation device, including rack, fermentation tank is fixed on the rack, feed pipe is fixed on the fermentation tank, rotatingly arranged with rotating rod in the fermentation tank, the rotating rod is fixed with the stirring paddle for the stirring of material inside fermentation tank, slot is opened in the stirring paddle, the lifting plate is movably connected in the slot, one end of the lifting plate is hinged with the stirring paddle, the inside bottom wall of the slot is provided with aeration hole, the rotating rod is hollow, bottom end closed structure and with aeration hole communication, piston mechanism for extracting external air to the inside of rotating rod and then conveying to aeration hole is provided on the rack, the bottom of the fermentation tank is fixed with discharge pipe, valve is installed on the discharge pipe.

[0007] The utility model provides a kind of soil biological bacteria fermentation device as described above: the piston mechanism includes piston cylinder fixed on the rack, piston rod is movably inserted in the piston cylinder, piston is fixed on the piston rod and movably connected in the piston cylinder, air inlet pipe and air outlet pipe extending to the inside of rotating rod are fixed on the piston cylinder, the air outlet pipe is rotatably inserted in the rotating rod; The main shaft is rotatably arranged on the rack, and the main shaft and the piston rod are connected through the first linkage structure, so that the main shaft drives the piston rod to move up and down in the piston cylinder when the main shaft rotates; The main shaft and the rotating rod are connected through the second linkage structure, so that the main shaft drives the rotating rod to rotate synchronously when the main shaft rotates.

[0008] The utility model provides a kind of soil biological bacteria fermentation device as described above: motor is fixed on the rack, and the output end of the motor is connected with the main shaft through the shaft coupling to drive the main shaft to rotate.

[0009] The utility model provides a kind of soil biological bacteria fermentation device as described above: the first linkage structure includes rotating disc fixed on the main shaft, and the swing arm is arranged between the rotating disc and the piston rod, and the swing arm is hinged at both ends with the rotating disc and the piston rod.

[0010] The utility model provides a kind of soil biological bacteria fermentation device as described above: the second linkage structure includes auxiliary shaft rotatably arranged on the rack, the auxiliary shaft and the main shaft are connected through the first gear mechanism, so that the auxiliary shaft drives the rotating rod to rotate synchronously when the main shaft rotates, the auxiliary shaft and the rotating rod are connected through the first sprocket mechanism, so that the auxiliary shaft drives the rotating rod to rotate synchronously when the auxiliary shaft rotates.

[0011] The utility model provides a kind of soil biological bacteria fermentation device as described above: the first gear mechanism includes the cone gear ring fixed on the main shaft and the bevel gear fixed on the auxiliary shaft, and the cone gear ring is engaged with the bevel gear; The first sprocket mechanism includes the first sprocket fixed on the rotating rod and the second sprocket fixed on the auxiliary shaft, and the first sprocket and the second sprocket are connected through the chain transmission.

[0012] The soil biological bacteria fermentation device has the beneficial effects that, when in use, the rotating rod is arranged in the fermentation tank, the stirring paddle is fixed on the rotating rod, the feces subjected to anaerobic fermentation is added into the fermentation tank and is stirred by the stirring paddle to make the material continuously flow and mix and increase the contact with air and reduce the generation of fermentation dead zones, the clamping groove is arranged on the stirring paddle, the lifting plate is movably clamped in the clamping groove, one end of the lifting plate is hingedly connected with the stirring paddle, the aeration hole is arranged in the inner bottom wall of the clamping groove, and the piston mechanism can draw the external air into the rotating rod and then send the air to the aeration hole.

[0013] The soil biological bacteria fermentation device has the beneficial effects that, when in use, the rotating rod is arranged in the fermentation tank, the stirring paddle is fixed on the rotating rod, the feces subjected to anaerobic fermentation is added into the fermentation tank and is stirred by the stirring paddle to make the material continuously flow and mix and increase the contact with air and reduce the generation of fermentation dead zones, the clamping groove is arranged on the stirring paddle, the lifting plate is movably clamped in the clamping groove, one end of the lifting plate is hingedly connected with the stirring paddle, the aeration hole is arranged in the inner bottom wall of the clamping groove, and the piston mechanism can draw the external air into the rotating rod and then send the air to the aeration hole.

[0014] The soil biological bacteria fermentation device has the beneficial effects that, when in use, the rotating rod is arranged in the fermentation tank, the stirring paddle is fixed on the rotating rod, the feces subjected to anaerobic fermentation is added into the fermentation tank and is stirred by the stirring paddle to make the material continuously flow and mix and increase the contact with air and reduce the generation of fermentation dead zones, the clamping groove is arranged on the stirring paddle, the lifting plate is movably clamped in the clamping groove, one end of the lifting plate is hingedly connected with the stirring paddle, the aeration hole is arranged in the inner bottom wall of the clamping groove, and the piston mechanism can draw the external air into the rotating rod and then send the air to the aeration hole.

[0015] The soil biological bacteria fermentation device has the beneficial effects that, when in use, the rotating rod is arranged in the fermentation tank, the stirring paddle is fixed on the rotating rod, the feces subjected to anaerobic fermentation is added into the fermentation tank and is stirred by the stirring paddle to make the material continuously flow and mix and increase the contact with air and reduce the generation of fermentation dead zones, the clamping groove is arranged on the stirring paddle, the lifting plate is movably clamped in the clamping groove, one end of the lifting plate is hingedly connected with the stirring paddle, the aeration hole is arranged in the inner bottom wall of the clamping groove, and the piston mechanism can draw the external air into the rotating rod and then send the air to the aeration hole. The soil biological bacteria fermentation device has the beneficial effects that, when in use, the rotating rod is arranged in the fermentation tank, the stirring paddle is fixed on the rotating rod, the feces subjected to anaerobic fermentation is added into the fermentation tank and is stirred by the stirring paddle to make the material continuously flow and mix and increase the contact with air and reduce the generation of fermentation dead zones, the clamping groove is arranged on the stirring paddle, the lifting plate is movably clamped in the clamping groove, one end of the lifting plate is hingedly connected with the stirring paddle, the aeration hole is arranged in the inner bottom wall of the clamping groove, and the piston mechanism can draw the external air into the rotating rod and then send the air to the aeration hole. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a first perspective overall structure schematic view of the soil biological bacteria fermentation device.

[0017] Figure 2 It is a second perspective overall structure schematic view of the soil biological bacteria fermentation device.

[0018] Figure 3 It is a third perspective overall structure schematic view of the soil biological bacteria fermentation device.

[0019] Figure 4 It is a partial structure schematic view of the soil biological bacteria fermentation device. Figure 1

[0020] ​Figure 5 Another perspective view of the structure of the soil biological bacteria fermentation device Figure 4 Another perspective view of the structure of the soil biological bacteria fermentation device

[0021] Figure 6 Another perspective view of the structure of the soil biological bacteria fermentation device Figure 4 Another perspective view of the structure of the soil biological bacteria fermentation device

[0022] Figure 7 Another perspective view of the structure of the soil biological bacteria fermentation device Figure 5 Another perspective view of the structure of the soil biological bacteria fermentation device

[0023] Figure 8 Another perspective view of the structure of the soil biological bacteria fermentation device

[0024] Figure 9 Another perspective view of the structure of the soil biological bacteria fermentation device Figure 8 Another perspective view of the structure of the soil biological bacteria fermentation device

[0025] Figure 10 Another perspective view of the structure of the soil biological bacteria fermentation device Figure 9 Another perspective view of the structure of the soil biological bacteria fermentation device

[0026] In the figure: 1, frame; 2, fermentation tank; 3, feeding pipe; 4, rotating rod; 5, stirring paddle; 6, clamping groove; 7, lifting plate; 8, main shaft; 9, motor; 10, auxiliary shaft; 11, bevel gear; 12, bevel gear; 13, first sprocket; 14, second sprocket; 15, chain; 16, piston cylinder; 17, piston; 18, piston rod; 19, rotating disc; 20, swing arm; 21, air inlet pipe; 22, air outlet pipe; 23, aeration hole; 24, discharge pipe; 25, valve. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0028] Please refer to Figures 1-10As an embodiment of the present application, a soil biological bacteria fermentation device comprises a rack 1, a fermentation tank 2 fixed on the rack 1, a feeding pipe 3 fixed on the fermentation tank 2, a rotating shaft 4 rotatably arranged in the fermentation tank 2, a stirring paddle 5 fixed on the rotating shaft 4 for stirring the materials in the fermentation tank 2, a clamping groove 6 formed in the stirring paddle 5, a lifting plate 7 movably clamped in the clamping groove 6, one end of the lifting plate 7 hinged to the stirring paddle 5, an aeration hole 23 formed in the inner bottom wall of the clamping groove 6, the rotating shaft 4 being hollow, the bottom end being closed and communicating with the aeration hole 23, a piston mechanism arranged on the rack 1 for pumping external air into the rotating shaft 4 and then to the aeration hole 23, a discharge pipe 24 fixed at the bottom of the fermentation tank 2, and a valve 25 mounted on the discharge pipe 24.

[0029] In this embodiment, when in use, the excrement subjected to anaerobic treatment is added into the fermentation tank 2 through the feeding pipe 3. The rotating shaft 4 rotatably arranged in the fermentation tank 2 and the stirring paddle 5 fixed on the rotating shaft 4 are rotated by the rotating shaft 4. The excrement subjected to anaerobic fermentation is added into the fermentation tank 2 and stirred by the rotating stirring paddle 5 to make the materials continuously mix and flow, increase the contact with air, and reduce the generation of fermentation dead zones. The clamping groove 6 is formed in the stirring paddle 5, the lifting plate 7 is movably clamped in the clamping groove 6, one end of the lifting plate 7 is hinged to the stirring paddle 5, the aeration hole 23 is formed in the inner bottom wall of the clamping groove 6, and the external air is pumped into the rotating shaft 4 by the piston mechanism and then to the aeration hole 23. When the excrement is subjected to aerobic fermentation treatment, the external air is continuously pumped into the fermentation tank 2 through the aeration hole 23 to make the air fully contact with the excrement during stirring, ensure sufficient oxygen required by the aerobic and facultative anaerobic microorganisms in the fermentation process, and drive the lifting plate 7 to overturn by aeration through the aeration hole 23 to lift the excrement, increase the contact area of the excrement with air, and facilitate the overflow of CO2 during fermentation. The excrement subjected to aerobic treatment is discharged from the discharge pipe 24 by opening the valve 25 on the discharge pipe 24 and then combined with the soil to serve as soil fertilizer.

[0030] As a further scheme of the present application, the piston mechanism comprises a piston cylinder 16 fixed on the rack 1, a piston rod 18 movably inserted into the piston cylinder 16, a piston 17 movably clamped in the piston cylinder 16 and fixed on the piston rod 18, an air inlet pipe 21 fixed on the piston cylinder 16, and an air outlet pipe 22 extending into the rotating shaft 4 and rotatably inserted into the rotating shaft 4. A main shaft 8 is rotatably arranged on the rack 1, the main shaft 8 is cooperated with the piston rod 18 through a first linkage structure, and the main shaft 8 drives the piston rod 18 to move up and down in the piston cylinder 16 when the main shaft 8 rotates. The main shaft 8 is cooperated with the rotating shaft 4 through a second linkage structure, and the main shaft 8 drives the rotating shaft 4 to synchronously rotate when the main shaft 8 rotates.

[0031] In this embodiment, when the main shaft 8 rotates, the first linkage structure is used to cooperate between the main shaft 8 and the piston rod 18, so that the main shaft 8 drives the piston rod 18 to move up and down in the piston cylinder 16, thereby driving the piston 17 to move up and down in the piston cylinder 16, and then cooperating with the air inlet pipe 21 and the air outlet pipe 22 to suck external air into the piston cylinder 16, and then transport the air from the piston cylinder 16 to the air outlet pipe 22, and finally transport the air from the air outlet pipe 22 to the rotating rod 4.

[0032] As a further scheme of the present application, the motor 9 is fixed on the rack 1, and the output end of the motor 9 is connected with the main shaft 8 through a shaft coupling to drive the main shaft 8 to rotate.

[0033] In this embodiment, the motor 9 is electrically connected with an external power source through wires, and the motor 9 drives the main shaft 8 to rotate when the motor 9 is started.

[0034] As a further scheme of the present application, the first linkage structure includes a rotating disc 19 fixed on the main shaft 8, and a swing arm 20 is arranged between the rotating disc 19 and the piston rod 18, and the two ends of the swing arm 20 are hinged with the rotating disc 19 and the piston rod 18 respectively.

[0035] In this embodiment, when the main shaft 8 rotates, the rotating disc 19 rotates synchronously, and the swing arm 20 swings when the rotating disc 19 rotates, thereby driving the piston rod 18 to move up and down in the piston cylinder 16, and further driving the piston 17 to move up and down in the piston cylinder 16.

[0036] As a further scheme of the present application, the second linkage structure includes a secondary shaft 10 rotatably arranged on the rack 1, and the secondary shaft 10 is driven by the first gear mechanism between the main shaft 8 and the secondary shaft 10, so that the main shaft 8 drives the secondary shaft 10 to rotate synchronously, and the secondary shaft 10 is cooperated with the first sprocket mechanism between the secondary shaft 10 and the rotating rod 4, so that the secondary shaft 10 drives the rotating rod 4 to rotate synchronously.

[0037] In this embodiment, the secondary shaft 10 is driven by the first gear mechanism between the main shaft 8 and the secondary shaft 10, so that the main shaft 8 drives the secondary shaft 10 to rotate synchronously, and the secondary shaft 10 is cooperated with the first sprocket mechanism between the secondary shaft 10 and the rotating rod 4, so that the secondary shaft 10 drives the rotating rod 4 to rotate synchronously, and further the main shaft 8 drives the rotating rod 4 to rotate synchronously, and the rotating rod 4 drives the stirring paddle 5 to rotate to stir the feces in the fermentation tank 2.

[0038] As a further scheme of the present application, the first gear mechanism includes a bevel gear ring 11 fixed on the main shaft 8 and a bevel gear 12 fixed on the secondary shaft 10, and the bevel gear ring 11 is engaged with the bevel gear 12. The first sprocket mechanism includes a first sprocket 13 fixed on the rotating rod 4 and a second sprocket 14 fixed on the secondary shaft 10, and the first sprocket 13 and the second sprocket 14 are driven by a chain 15.

[0039] In this embodiment, the main shaft 8 rotates the bevel gear 11, and the bevel gear 11 rotates the bevel gear 12, and the bevel gear 12 synchronously rotates the secondary shaft 10.

[0040] As a further scheme of the present application, the first one-way valve is installed on the air inlet pipe 21, and the first one-way valve only allows external air to enter the piston cylinder 16 through the air inlet pipe 21, and the second one-way valve is installed on the air outlet pipe 22, and the second one-way valve only allows air in the piston cylinder 16 to enter the rotating rod 4 through the air outlet pipe 22.

[0041] In this embodiment, the first one-way valve is installed on the air inlet pipe 21, and the second one-way valve is installed on the air outlet pipe 22, and when the piston 17 slides up and down in the piston cylinder 16, the air inlet pipe 21 and the air outlet pipe 22 can extract external air into the piston cylinder 16, and then deliver the air from the piston cylinder 16 to the air outlet pipe 22.

[0042] As a further scheme of the present application, the number of stirring paddles 5 is set to multiple, and the multiple stirring paddles 5 are circumferentially distributed on the rotating rod 4 at equal angles, and the edges of the stirring paddles 5 are arc transition processed.

[0043] In this embodiment, the rotating rod 4 rotates the multiple stirring paddles 5 synchronously in the fermentation tank 2, and the stirring paddles 5 rotate to stir the feces in the fermentation tank 2, which can continuously mix and accelerate the flow of the feces in the fermentation tank 2, thereby increasing the contact area of the feces and air, and facilitating the overflow of CO2 generated during fermentation.

[0044] As a further scheme of the present application, the filter screen is installed at the port of the aeration hole 23, and the filter screen is used to prevent materials from entering the aeration hole 23.

[0045] In this embodiment, the filter screen is installed at the port of the aeration hole 23, and when aeration is performed through the aeration hole 23, the filter screen is used to prevent materials from entering the aeration hole 23.

[0046] The working principle of the application is: in use, the manure subjected to anaerobic treatment is added into the fermentation tank 2 through the feeding pipe 3, the motor 9 is started, the motor 9 drives the main shaft 8 to rotate, the main shaft 8 rotates to drive the auxiliary shaft 10 to rotate synchronously, the auxiliary shaft 10 rotates to drive the rotating rod 4 to rotate synchronously, the rotating rod 4 rotates to drive the stirring paddle 5 to rotate to stir the manure in the fermentation tank 2, the manure subjected to anaerobic fermentation is added into the fermentation tank 2, and the stirring paddle 5 is rotated to stir the manure in the fermentation tank 2, so that the materials are continuously mixed and flow, the contact between the manure and air is increased, and the dead fermentation zone is reduced, the clamping groove 6 is formed on the stirring paddle 5, the lifting plate 7 is movably clamped in the clamping groove 6, one end of the lifting plate 7 is hinged to the stirring paddle 5, the aeration hole 23 is formed in the inner bottom wall of the clamping groove 6, when the main shaft 8 rotates, the main shaft 8 and the piston rod 18 are matched through the first linkage structure, the main shaft 8 rotates to drive the piston rod 18 to move up and down in the piston cylinder 16, so as to drive the piston 17 to move up and down in the piston cylinder 16, and then the air inlet pipe 21 and the air outlet pipe 22 can extract the external air to the inside of the piston cylinder 16, and then the air is transported from the inside of the piston cylinder 16 to the inside of the air outlet pipe 22, and finally the air is transported from the air outlet pipe 22 to the inside of the rotating rod 4, the rotating rod 4 is a hollow structure and is communicated with the aeration hole 23, and the air is transported to the aeration hole 23 after entering the inside of the rotating rod 4; when the manure is added into the fermentation tank 2 for aerobic fermentation treatment, the external air is continuously transported into the fermentation tank 2 through the aeration hole 23, so that the air can fully contact the manure during stirring, the sufficient oxygen required by the fermentation process of the aerobic and facultative anaerobic microorganisms is ensured, the lifting plate 7 is driven to overturn by aeration through the aeration hole 23, the manure is lifted, the contact area between the manure and air is increased, and the CO2 in the manure is overflowed during fermentation, so that the manure is not lack of oxygen and the CO2 concentration is not accumulated too high to inhibit the growth and metabolism of the bacteria, the fermentation efficiency is effectively improved, the manure subjected to aerobic treatment is discharged outward through the discharge pipe 24 by opening the valve 25 on the discharge pipe 24, and then the manure can be combined with the soil as a safe fertilizer and a soil conditioner.

[0047] The above examples are exemplary rather than limiting, and the technical solutions of the application can be implemented in other specific forms without departing from the spirit or essential characteristics of the application, which are all included in the application.

Claims

1. A soil biological bacteria fermentation device, comprising a frame (1), characterized in that: A fermentation tank (2) is fixed on the frame (1), a feed pipe (3) is fixed on the fermentation tank (2), a rotating rod (4) is rotatably provided in the fermentation tank (2), a stirring paddle (5) for stirring the material inside the fermentation tank (2) is fixed on the rotating rod (4), a card slot (6) is provided on the stirring paddle (5), a lifting plate (7) is movably connected in the card slot (6), one end of the lifting plate (7) is hinged to the stirring paddle (5), an aeration hole (23) is provided on the inner bottom wall of the card slot (6), the rotating rod (4) is hollow inside, the bottom end is a closed structure and is connected to the aeration hole (23), a piston mechanism is provided on the frame (1) for drawing external air into the rotating rod (4) and then transporting it to the aeration hole (23), a discharge pipe (24) is fixed at the bottom of the fermentation tank (2), and a valve (25) is installed on the discharge pipe (24).

2. A soil biological bacteria fermentation device according to claim 1, characterized in that: The piston mechanism comprises a piston cylinder (16) fixed on the frame (1), a piston rod (18) movably inserted into the interior of the piston cylinder (16), a piston (17) movably clamped into the interior of the piston cylinder (16) fixed on the piston rod (18), an air inlet pipe (21) and an air outlet pipe (22) extending to the interior of the rotating rod (4) fixed on the piston cylinder (16), and the air outlet pipe (22) rotatably inserted into the interior of the rotating rod (4); A main shaft (8) is rotatably provided on the frame (1), and the main shaft (8) and the piston rod (18) are engaged via a first linkage structure. When the main shaft (8) rotates, it drives the piston rod (18) to move up and down in the piston cylinder (16); The main shaft (8) and the rotating rod (4) are matched via a second linkage structure, and when the main shaft (8) rotates, the rotating rod (4) is driven to rotate synchronously.

3. A soil biological bacteria fermentation device according to claim 2, characterized in that: A motor (9) is fixed on the frame (1), and an output end of the motor (9) is connected to the main shaft (8) via a coupling to drive the main shaft (8) to rotate.

4. A soil biological bacteria fermentation device according to claim 2, characterized in that: The first linkage structure comprises a turntable (19) fixed on the main shaft (8), a swing arm (20) is provided between the turntable (19) and the piston rod (18), and two ends of the swing arm (20) are hinged to the turntable (19) and the piston rod (18), respectively.

5. A soil biological bacteria fermentation device according to claim 2, characterized in that: The second linkage structure includes a secondary shaft (10) rotatably arranged on the frame (1), wherein the secondary shaft (10) and the main shaft (8) are driven by a first gear mechanism, and when the main shaft (8) rotates, the secondary shaft (10) is driven to rotate synchronously, and the secondary shaft (10) and the rotating rod (4) are matched by a first sprocket mechanism, and when the secondary shaft (10) rotates, the rotating rod (4) is driven to rotate synchronously.

6. A soil biological bacteria fermentation device according to claim 5, characterized in that: The first gear mechanism comprises a bevel gear ring (11) fixed on the main shaft (8) and a bevel gear (12) fixed on the secondary shaft (10), wherein the bevel gear ring (11) meshes with the bevel gear (12); The first sprocket mechanism comprises a first sprocket (13) fixed on the rotating rod (4) and a second sprocket (14) fixed on the secondary shaft (10), and the first sprocket (13) and the second sprocket (14) are driven by a chain (15).

7. A soil biological bacteria fermentation device according to claim 2, characterized in that: A first one-way valve is installed on the air inlet pipe (21), and the first one-way valve only allows external air to enter the interior of the piston cylinder (16) through the air inlet pipe (21). A second one-way valve is installed on the air outlet pipe (22), and the second one-way valve only allows the air inside the piston cylinder (16) to enter the interior of the rotating rod (4) through the air outlet pipe (22).

8. The soil biological bacteria fermentation device according to claim 1, characterized in that: The number of the stirring paddles (5) is set to be multiple, and the multiple stirring paddles (5) are distributed on the rotating rod (4) at equal angles, and the corners of the stirring paddles (5) are processed with arc transitions.

9. The soil biological bacteria fermentation device according to claim 1, characterized in that: A filter screen is installed at the port of the aeration hole (23), and the filter screen is used to prevent materials from entering the interior of the aeration hole (23).

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