Mechanical stirring two-stage fermentation tank

Abstract

The utility model relates to the technical field of fermentation equipment, in particular to a mechanical stirring two-stage fermentation tank which comprises a counterweight base and an assembly bottom ring mounted on the upper side of the counterweight base, a plurality of middle section rods are vertically and upwards mounted on the upper side of the assembly bottom ring at equal intervals, limiting rings are arranged at the upper ends of the plurality of middle section rods, and a stirring fermentation device is arranged on the counterweight base; the stirring fermentation device comprises a damping base which is mounted on the counterweight base and located in the assembly bottom ring, a fermentation container is placed on the damping base, the limiting ring is covered with a circular top cover, a rubber ring is mounted on the lower side of the circular top cover in an embedded mode, an embedded ring groove for mounting the rubber ring is formed in the lower side of the circular top cover, and a plurality of padlock rods are clamped on the circular top cover at equal intervals; an abutting piece matched with the padlock rod is arranged on the middle section rod, and a stirring mechanism is arranged on the circular top cover; the stirring tank has the advantages that full and uniform stirring can be carried out, the tank body can be always kept in a stable state in the stirring process, and shaking and vibration are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of fermentation equipment, and in particular to a mechanically agitated secondary fermentation tank. Background Art

[0002] Secondary fermentation tanks (also called secondary fermentation tanks) are commonly used in fermentation processes. They are mainly used to further cultivate and produce microorganisms or metabolites after primary fermentation. In laboratories, fermentation tanks that can be mechanically stirred are often needed to ensure that the culture medium, nutrients and microorganisms are evenly mixed, so that the components can fully contact during the fermentation process and improve the reaction efficiency; for aerobic microorganisms, the dissolution and transfer of oxygen are the key to the fermentation process. Mechanical stirring can increase the fluidity of the liquid, promote the dissolution and transfer of oxygen, and increase the metabolic rate of microorganisms. During the fermentation process, cells may precipitate or form layers. Mechanical stirring can reduce this phenomenon, maintain a suspended state, and ensure the activity and effectiveness of the microorganisms.

[0003] For example, in the existing Chinese patent with publication number CN213142002U, a mechanical stirring glass fermentation tank is disclosed, which includes a container, the container is made of glass, the upper end of the container is processed with an opening part, a cover plate is installed in the opening part, the cover plate is installed in close contact with the opening part, the inside of the cover plate has an inner edge part, the inner edge part is close contact with the inner wall of the container, an axis tube is arranged at the axis center of the cover plate, and a stirring shaft is installed in the axis tube. Through the above-mentioned prior art, the liquid in the container can be stirred by assembling a motor to drive the stirring shaft to rotate, and the container can be pressed down to squeeze out the air in the negative pressure bin to improve the stability of the container when it is placed.

[0004] However, the above prior art has the following technical defects:

[0005] The stirring rod used for stirring in the above device is installed at the lower end of the stirring shaft, which is located at a relatively low position. When there is more liquid in the container, only the bottom of the liquid can be stirred, and the stirring effect is not good. Secondly, before stirring, it is necessary to press down on the container to discharge the air in the negative pressure chamber so that the rubber base can be firmly adsorbed on the operating table to improve the stability of the container when placed; but because the motor is at the top of the container, when the motor is running, it is only adsorbed and fixed by the rubber base at the bottom of the container. The upper part of the container is prone to shaking and vibrating when the motor is running, so that it is difficult for the container to remain stable during stirring.

[0006] Based on this, on the basis of the existing mechanically stirred glass fermentation tank, in order to overcome the above-mentioned technical defects, there is still room for improvement. Utility Model Content

[0007] In order to achieve sufficient and uniform stirring and ensure that the tank body can always maintain a stable state during the stirring process, avoiding shaking and vibration, the present application provides a mechanical stirring secondary fermenter.

[0008] The mechanical stirring secondary fermenter provided by the present application adopts the following technical solutions:

[0009] A mechanical stirring secondary fermenter includes a counterweight base and an assembly bottom ring installed on the upper side of the counterweight base. A number of middle-section rods are vertically and equally spaced upwardly installed on the upper side of the assembly bottom ring. A limiting ring is provided at the upper ends of the middle-section rods. A stirring and fermenting device is provided on the counterweight base;

[0010] The stirring and fermenting device includes a shock-absorbing base installed on the counterweight base and located in the assembly bottom ring. A fermentation container is placed on the shock-absorbing base. A round top cover is covered on the limiting ring. A rubber ring is embedded and installed on the lower side of the round top cover. An embedding ring groove for installing the rubber ring is opened on the lower side of the round top cover. A number of hanging lock rods are equally spaced and clamped on the round top cover. A tightening member cooperating with the hanging lock rods is provided on the middle-section rods. A stirring mechanism is provided on the round top cover.

[0011] Preferably, the tightening member includes a convex-shaped pressing ring slidably sleeved on a number of middle-section rods. A downward pressing spring is sleeved on the middle-section rods between the convex-shaped pressing ring and the limiting ring. The bottom of the hanging lock rod has a card slot adapted to the middle-section rods.

[0012] Preferably, the stirring mechanism includes a transmission rod rotatably penetrating through the round top cover. A middle circular hole for installing the transmission rod is penetrated and opened on the round top cover. A docking end block is provided at the upper end of the transmission rod. A connection groove is provided on the docking end block.

[0013] Preferably, an assembly wheel and two stirring impellers are sequentially sleeved on the transmission rod below the round top cover. A number of stirring rods are vertically and equally spaced downwardly installed on the lower side of the assembly wheel.

[0014] Preferably, a docking drive assembly is further provided on the upper side of the round top cover. The docking drive assembly includes a semi-circular member installed on the upper end of the round top cover through an L-shaped support. A rubber gasket is provided on the inner side of the semi-circular member. A driver is provided on the inner side of the semi-circular member.

[0015] Preferably, a protective semi-ring is slidably provided in the semi-circular member. An arc-shaped sliding groove for installing the protective semi-ring is opened on the semi-circular member. A T-shaped end button connected to the protective semi-ring is inserted and slidably provided on the upper side of the semi-circular member. An arc-shaped sliding opening communicating with the arc-shaped sliding groove and for slidably installing the T-shaped end button is opened on the semi-circular member.

[0016] Preferably, the driver includes a drive motor with its rotating end disposed downward inside the semi-circular member. A transmission wheel is installed at the rotating end of the drive motor, and a convex insertion rod adapted to the connection groove is provided on the side of the transmission wheel away from the drive motor.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. After the round top cover is covered on the limit ring, push the convex abutting ring upward and rotate the round top cover so that the bottom card slot of the padlock rod installed on the round top cover is stuck on the middle section rod, and then release the convex abutting ring to lock and cover the round top cover on the upper end of the fermentation container.

[0019] 2. After the convex insertion rod is inserted into the connection groove, the drive motor is inside the semi-circular member. Push the T-shaped terminal to drive the protective semi-ring to extend from the arc-shaped chute to protect and limit the drive motor. When the drive motor operates, it can drive the transmission rod to rotate through the docking end block.

[0020] 3. The drive motor drives the transmission rod to rotate, and the two stirring impellers and the stirring rod installed on the transmission rod inside the fermentation container can fully and evenly stir the liquid in the fermentation container. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the whole utility model.

[0022] Figure 2 is a schematic diagram of the assembled bottom ring, middle section rod, and limit ring of the utility model.

[0023] Figure 3 is a schematic diagram of the stirring and fermenting device of the utility model.

[0024] Figure 4 is an exploded sectional view of some components of the stirring and fermenting device of the utility model.

[0025] Figure 5 is an exploded view of the round top cover and the limit ring of the utility model.

[0026] Figure 6 is a sectional view of the stirring mechanism of the utility model.

[0027] Figure 7 is a schematic diagram of the docking drive assembly of the utility model Figure 1 。

[0028] Figure 8 is a schematic diagram of the docking drive assembly of the utility model Figure 2 。

[0029] Figure 9 is an exploded view of the driver of the utility model.

[0030] Description of the reference numerals: 1, counterweight base; 11, assembly bottom ring; 12, middle section rod; 13, limit ring; 2, stirring and fermentation device; 21, shock-absorbing base; 22, fermentation container; 23, round top cover; 24, rubber ring; 231, embedded ring groove; 25, padlock rod; 3, pressing member; 4, stirring mechanism; 31, convex pressing ring; 32, downward pressing spring; 251, card slot; 41, transmission rod; 232, middle round hole; 42, docking end block; 421, connection groove; 43, assembly wheel; 44, stirring impeller; 45, stirring rod; 5, docking drive assembly; 51, L-shaped support; 52, semi-circular member; 53, rubber gasket; 6, driver; 54, protective semi-ring; 521, arc-shaped chute; 55, T-shaped end button; 522, arc-shaped sliding opening; 61, drive motor; 62, transmission wheel; 63, convex insertion rod. Detailed implementation manners

[0031] The following is further described in detail in conjunction with the attached Figures 1 - 9 This application.

[0032] The embodiment of this application discloses a mechanical stirring secondary fermenter, which can perform sufficient and uniform stirring, and the tank body can always maintain a stable state during the stirring process, avoiding shaking and vibration.

[0033] Referring to Figure 1 And Figure 2 As shown, this application provides a mechanical stirring secondary fermenter, including a counterweight base 1 and an assembly bottom ring 11 installed on the upper side of the counterweight base 1. The counterweight base 1 is made of solid metal material and has a heavy weight, so it can be stably placed on the tabletop and is not easily displaced; the assembly bottom ring 11 and the counterweight base 1 are integrally provided. In this embodiment, preferably, three middle section rods 12 are vertically and equally spaced upwardly installed on the upper side of the assembly bottom ring 11, and a limit ring 13 is provided at the upper ends of the three middle section rods 12. The limit ring 13, the middle section rods 12 and the assembly bottom ring 11 are fixedly connected. A stirring and fermentation device 2 is provided on the counterweight base 1; it is used to mechanically stir the target fermented substance in the laboratory to increase the fluidity of the liquid and improve the metabolic rate of microorganisms. When in use, the counterweight base 1 is placed on the operation tabletop. The counterweight base 1 is used as a base, so that the middle section rods 12 and the limit ring 13 can be stably located on the tabletop. When the stirring and fermentation device 2 operates for stirring, it will not be displaced or shaken under the support of the counterweight base 1.

[0034] Referring to Figure 3 And Figure 4As shown in the figure, specifically, the stirring fermentation device 2 includes a shock-absorbing base 21 installed in the assembly bottom ring 11 on the counterweight base 1. The shock-absorbing base 21 is made of rubber. A fermentation container 22 is placed on the shock-absorbing base 21. The fermentation container 22 is made of transparent glass to facilitate laboratory personnel to observe the stirring and fermentation conditions from the outside. When placing the fermentation container 22, the bottom passes through the limiting ring 13 and is placed on the shock-absorbing base 21, so that the fermentation container 22 is vertically located between the three middle rods 12, and the upper opening of the fermentation container 22 is flush with the upper side of the limiting ring 13. A round top cover 23 is covered on the limiting ring 13. A rubber ring 24 is embedded and installed on the lower side of the round top cover 23. It should be noted that the diameter of the rubber ring 24 is adapted to the port of the fermentation container 22. When the round top cover 23 is covered on the limiting ring 13, the rubber ring 24 is clamped at the port of the fermentation container 22. An embedding ring groove 231 for installing the rubber ring 24 is opened on the lower side of the round top cover 23. In this embodiment, preferably, three hanging lock rods 25 are equidistantly clamped on the round top cover 23, and the three hanging lock rods 25 are fixedly installed on the round top cover 23. A tightening member 3 cooperating with the hanging lock rod 25 is provided on the middle rod 12 for locking the round top cover 23. A stirring mechanism 4 is provided on the round top cover 23 for mechanically stirring the liquid in the fermentation container 22.

[0035] After the fermentation container 22 is placed on the shock-absorbing base 21, the round top cover 23 is placed above the limiting ring 13 and covered downward. Part of the stirring mechanism 4 passes through the limiting ring 13 and enters the fermentation container 22. With the cooperation of the tightening member 3 and the three hanging lock rods 25, the round top cover 23 can be locked on the limiting ring 13, and the stirring mechanism 4 can operate to stir the liquid in the fermentation container 22.

[0036] Refer to Figure 5 As shown in the figure, considering that the round top cover 23 needs to be tightly covered on the fermentation container 22, the tightening member 3 includes a convex-shaped pressing ring 31 slidably sleeved on the three middle rods 12. A downward pressing spring 32 is sleeved on the middle rod 12 between the convex-shaped pressing ring 31 and the limiting ring 13. It should be noted that each middle rod 12 is sleeved with a downward pressing spring 32. The upper end of the downward pressing spring 32 is fixedly connected to the lower side of the limiting ring 13, and the lower end of the downward pressing spring 32 is fixedly connected to the upper side of the convex-shaped pressing ring 31, and the downward pressing spring 32 always has a downward driving force on the convex-shaped pressing ring 31. The bottom of the hanging lock rod 25 has a card slot 251 adapted to the middle rod 12. After the round top cover 23 is placed on the upper side of the limiting ring 13, the convex-shaped pressing ring 31 is pushed upward to a certain height, and then the round top cover 23 is rotated so that the card slots 251 at the bottoms of the three hanging lock rods 25 are respectively stuck on the three middle rods 12, and then the convex-shaped pressing ring 31 is released. Driven by the downward pressing spring 32, the convex-shaped pressing ring 31 moves downward and presses tightly on the hanging lock rod 25, so as to realize the effect of tightly covering the round top cover 23 on the limiting ring 13, and the rubber ring 24 is clamped at the port of the fermentation container 22 to cover and seal the fermentation container 22.

[0037] Refer to Figure 6 As shown, since it is necessary to fully and evenly stir the liquid in the fermentation container 22, the stirring mechanism 4 includes a transmission rod 41 rotatably arranged through the round top cover 23. A middle round hole 232 for installing the transmission rod 41 is penetrated and opened on the round top cover 23. A docking end block 42 is arranged at the upper end of the transmission rod 41. The docking end block 42 and the transmission rod 41 are fixedly connected. When the docking end block 42 is forced to rotate, the transmission rod 41 can be driven to rotate synchronously; a connection groove 421 is provided on the docking end block 42 for docking with the driving device.

[0038] Continue to refer to Figure 6 As shown, an assembly wheel 43 and two stirring impellers 44 are sequentially sleeved on the transmission rod 41 below the round top cover 23. A relatively large-diameter assembly wheel 43 and two relatively small-diameter stirring impellers 44 are fixedly sleeved and installed from top to bottom in sequence; in this embodiment, preferably, four stirring rods 45 are vertically and equally spaced and installed on the lower side of the assembly wheel 43. The stirring rods 45 and the assembly wheel 43 are fixedly connected. When the transmission rod 41 is driven to rotate, the two stirring impellers 44, the assembly wheel 43, and the four stirring rods 45 installed on the lower side of the assembly wheel 43 can be driven to rotate in the fermentation container 22 to achieve the purpose of mechanical stirring.

[0039] Refer to Figure 7 and Figure 8 As shown, in order to facilitate disassembly and assembly, when stirring operation is required, the transmission rod 41 is driven to rotate. A docking drive assembly 5 is further provided on the upper side of the round top cover 23. The docking drive assembly 5 includes a semi-circular member 52 installed at the upper end of the round top cover 23 through an L-shaped support 51. The semi-circular member 52, the L-shaped support 51, and the round top cover 23 are fixedly connected; a rubber gasket 53 is provided on the inner side of the semi-circular member 52, and a driver 6 is provided on the inner side of the semi-circular member 52 for docking with the docking end block 42 to drive the docking end block 42 to rotate.

[0040] Refer to Figure 8 As shown, a protective semi-ring 54 is slidably arranged in the semi-circular member 52. An arc-shaped chute 521 for installing the protective semi-ring 54 is opened on the semi-circular member 52. A T-shaped end button 55 connected to the protective semi-ring 54 is inserted and slidably arranged on the upper side of the semi-circular member 52. An arc-shaped sliding opening 522 communicating with the arc-shaped chute 521 for slidably installing the T-shaped end button 55 is opened on the semi-circular member 52. The T-shaped end button 55 and the protective semi-ring 54 are fixedly connected; in the initial state, the protective semi-ring 54 is located in the arc-shaped chute 521. Pushing the T-shaped end button 55 can drive the protective semi-ring 54 to slide out of the arc-shaped chute 521 to form a closed ring with the semi-circular member 52.

[0041] Refer to Figure 9As shown, considering the need to connect with the docking end block 42, the driving rod 41 is driven to rotate. The driver 6 includes a driving motor 61 with its rotating end arranged downward inside the semi-circular member 52. A transmission wheel 62 is installed at the rotating end of the driving motor 61. On the side of the transmission wheel 62 away from the driving motor 61, there is a convex insertion rod 63 adapted to the connection groove 421. The transmission wheel 62 and the convex insertion rod 63 are fixedly installed at the rotating end of the driving motor 61. When installing the driving motor 61, first insert the convex insertion rod 63 into the connection groove 421 on the docking end block 42 in a docking manner. At this time, the driving motor 61 is vertically located inside the semi-circular member 52. Subsequently, push the T-shaped terminal 55 to make the protective semi-ring 54 slide out and cover the periphery of the driving motor 61. The friction between the rubber gasket 53 and the driving motor 61 is relatively large, and with the covering of the protective semi-ring 54, the operation of the driving motor 61 can stably drive the docking end block 42 and the driving rod 41 to rotate. Under the action of the pressing member 3, the round top cover 23 is tightly pressed and closed on the limiting ring 13. At the same time, the limiting ring 13 can limit the port of the fermentation container 22, so that when stirring operation is carried out, the fermentation container 22 can be stably located between the shock-absorbing base 21 and the round top cover 23 without shaking and vibrating.

[0042] After the stirring is completed, push the T-shaped terminal 55 to drive the protective semi-ring 54 to reset and return to the arc-shaped chute 521, and then pull out the convex insertion rod 63 to remove the driving motor 61, thus achieving the purpose of facilitating the disassembly of the driving motor 61, realizing the effect of multi-purpose use of the driving motor 61. There is no need to install the driving motor 61 on each round top cover 23 in the laboratory. When it is necessary to stir the fermented material, just dock the driving motor 61 on the corresponding docking end block 42, reducing the equipment cost.

[0043] The implementation principle of this embodiment is as follows:

[0044] (1) Container placement: Pass the bottom of the fermentation container 22 through the limiting ring 13 and place it on the shock-absorbing base 21. The fermentation container 22 is located between the three middle rods 12, and the port of the fermentation container 22 is flush with the upper side of the limiting ring 13.

[0045] (2) Tightening and closing: Place the round top cover 23 above the limiting ring 13 and close it downward, so that the driving rod 41, the stirring rod 45, the stirring impeller 44 and the assembly wheel 43 pass through the limiting ring 13 and enter the fermentation container 22. Subsequently, push the convex retaining ring 31 upward, rotate the round top cover 23 so that the bottom card slot 251 of the padlock rod 25 is stuck on the middle rod 12, and finally release the convex retaining ring 31. Driven by the pressing spring 32, the convex retaining ring 31 moves downward and tightly presses on the padlock rod 25 to tightly press and close the round top cover 23 on the limiting ring 13.

[0046] (3) Docking and assembly: The convex insertion rod 63 is inserted into the connecting groove 421, and the T-shaped terminal 55 is pushed so that the protective half-ring 54 slides out of the arc-shaped chute 521 and wraps around the peripheral side of the drive motor 61.

[0047] (4) Rotating and stirring: Start the operation of the drive motor 61 to drive the transmission rod 41 to drive the two stirring impellers 44 and the stirring rod 45 installed on the lower side of the assembly wheel 43 to rotate, so as to stir the liquid in the fermentation container 22.

[0048] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A mechanical stirring secondary fermentation tank, comprising a counterweight base (1) and an assembly bottom ring (11) installed on the upper side of the counterweight base (1). A plurality of middle-section rods (12) are vertically and equally spaced upwardly installed on the upper side of the assembly bottom ring (11). A limit ring (13) is provided at the upper ends of the plurality of middle-section rods (12). It is characterized in that: The weighted base (1) is provided with a stirring and fermenting device (2); The stirring fermentation device (2) comprises a shock-absorbing base (21) mounted on a counterweight base (1) and located in an assembly bottom ring (11); a fermentation container (22) is placed on the shock-absorbing base (21); a dome cover (23) is covered on the limit ring (13); a rubber ring (24) is embedded and installed on the lower side of the dome cover (23); an embedded ring groove (231) for installing the rubber ring (24) is opened on the lower side of the dome cover (23); a plurality of padlock rods (25) are equidistantly mounted on the dome cover (23); a fastening member (3) matched with the padlock rod (25) is provided on the middle section rod (12); and a stirring mechanism (4) is provided on the dome cover (23).

2. The mechanical stirring secondary fermenter according to claim 1, characterized in that: The fastening member (3) comprises a convex abutting ring (31) slidably mounted on a plurality of middle rods (12); a downward pressing spring (32) is mounted on the middle rod (12) between the convex abutting ring (31) and the limiting ring (13); and a clamping groove (251) adapted to the middle rod (12) is provided at the bottom of the padlock rod (25).

3. A mechanical stirring secondary fermentation tank according to claim 1, characterized in that: The stirring mechanism (4) comprises a transmission rod (41) which is rotatably arranged in the dome cover (23); a central circular hole (232) is provided through the dome cover (23) for installing the transmission rod (41); a butt end block (42) is provided at the upper end of the transmission rod (41); and a connecting groove (421) is provided on the butt end block (42).

4. The mechanical stirring secondary fermenter according to claim 3, wherein: An assembly wheel (43) and two stirring impellers (44) are sequentially sleeved on the transmission rod (41) located below the dome cover (23), and a plurality of stirring rods (45) are vertically and equidistantly mounted on the lower side of the assembly wheel (43).

5. A mechanical stirring secondary fermentation tank according to claim 3, characterized in that: A docking drive assembly (5) is also provided on the upper side of the dome cover (23), and the docking drive assembly (5) comprises a semi-arc-shaped member (52) mounted on the upper end of the dome cover (23) via an L-shaped support (51), a rubber gasket (53) is provided on the inner side of the semi-arc-shaped member (52), and a driver (6) is provided on the inner side of the semi-arc-shaped member (52).

6. The mechanical stirring secondary fermenter according to claim 5, wherein: A protective semi-ring (54) is slidably provided in the semi-arc-shaped member (52); an arc-shaped sliding groove (521) for mounting the protective semi-ring (54) is provided on the semi-arc-shaped member (52); a T-shaped end button (55) connected to the protective semi-ring (54) is slidably inserted on the upper side of the semi-arc-shaped member (52); and an arc-shaped sliding opening (522) connected to the arc-shaped sliding groove (521) for slidably mounting the T-shaped end button (55) is provided on the semi-arc-shaped member (52).

7. A mechanical stirring secondary fermenter according to claim 5, characterized in that: The driver (6) comprises a driving motor (61) with its rotating end facing downwardly arranged inside the semi-arc-shaped member (52); a transmission wheel (62) is mounted on the rotating end of the driving motor (61); and a convex insertion rod (63) adapted to the connection groove (421) is arranged on a side of the transmission wheel (62) away from the driving motor (61).

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