Tank cover lifting device for fermentation tank

Abstract

The utility model relates to a tank cover lifting device for a fermentation tank, which comprises a tank body fixed on the ground and a fixed seat, the top of the fixed seat is rotatably connected with a rotary table driven by a motor to rotate, the tank cover can rotate to a required angle around the axis under the driving of the rotary table, the top of the rotary table is fixedly connected with a fixed column, and the fixed column is fixedly connected with a lifting device. The utility model relates to the technical field of fermentation tanks. According to the tank cover lifting device for the fermentation tank, multi-degree-of-freedom accurate adjustment is achieved, the tank cover is driven to rotate around the shaft through the rotating table, accurate positioning of the horizontal angle and height of the tank cover is achieved in cooperation with vertical lifting of the lifting column, different working condition requirements are met, operation flexibility is remarkably improved, and operation efficiency is improved. And the floating buffer sealing is optimized: through the matching design of a floating sliding block and a guide rail sliding mechanism, the lifting arm can adaptively descend when the tank cover is closed, the tank cover is ensured to fully compress the sealing gasket to a set height, the rigid interference between the lifting mechanism and the sealing action when the tower buckle is locked is avoided, and the sealing reliability is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fermentation tank technical field, specifically is a tank cover lifting device for fermentation tank. BACKGROUND

[0002] As the key equipment in the field of bioengineering, food processing and the like, the sealing performance of the fermentation tank directly affects the production safety and efficiency. The traditional tank cover of the fermentation tank is usually opened or closed manually or by a simple mechanical lifting device, which has problems such as complicated operation, low positioning accuracy, unstable sealing effect and the like. Especially when the tank cover is closed, it is necessary to ensure that the sealing gasket between the tank cover and the tank body is fully compressed to achieve reliable sealing. However, the existing mechanical lifting device often lacks a buffer adjustment function, so that the lifting mechanism is rigidly connected with the tank cover when the tower buckle is locked, it is difficult to uniformly press, and the local deformation or insufficient compression of the sealing gasket is easily caused, thereby causing the risk of leakage. In addition, the tank cover needs to be frequently rotated to adapt to different workstations or maintenance angles, and the traditional device is usually of a fixed structure and lacks flexibility. Therefore, there is an urgent need for a tank cover lifting device with multi-directional adjustment, precise lifting and pressure self-adaptive functions to improve the sealing reliability and operation convenience. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a tank cover lifting device for a fermentation tank, which solves the problems mentioned above.

[0004] To achieve the above purpose, the utility model realizes the following technical scheme: a tank cover lifting device for a fermentation tank, comprising a tank body and a fixing seat fixed on the ground, a rotating table driven to rotate by a motor is rotatably connected to the top of the fixing seat, the tank cover can be rotated to the required angle under the driving of the rotating table, a fixing column is fixedly connected to the top of the rotating table, a lifting column is slidably connected to the inner cavity of the fixing column through a guide rail sliding mechanism, and the lifting column is driven by a driving mechanism.

[0005] A floating sliding block is slidably connected to the top end of the lifting column, the floating sliding block is located at the lower limit position of the sliding rail during lifting, a lifting arm is fixedly connected to the side edge of the floating sliding block, a tank cover is fixedly connected to the bottom of the lifting arm, a tower buckle connected with the top of the tank body is arranged on the side edge of the tank cover, and a sealing gasket in contact with the bottom of the tank cover is fixed to the top of the tank body. After the tank cover contacts the tank body, the lifting arm further descends by a distance, so that the floating sliding block is located in the upper half of the track. The purpose is to provide a distance for the downward movement of the lifting arm, so that the lifting machine does not affect the sealing contact surface between the tank cover and the tank body when the tank cover is fixed by the tower buckle. There is a circle of sealing gasket on the contact surface between the tank cover and the tank body, the sealing gasket is higher than the upper end surface of the tank body, and only when the sealing gasket is pressed down by the tank cover by a certain height can the sealing property of the tank cover be ensured. If there is no such mechanism, the lifting arm is fixed when the tank cover is fixed, and the tank cover is difficult to be pressed down by the tower buckle, which affects the sealing of the tank cover.

[0006] As a further scheme of the utility model: the guide rail sliding mechanism is fixed on the side of the inner cavity of the fixed column, the slider is fixed on the side of the surface of the lifting column, and the slider is arranged on the surface of the guide rail.

[0007] As a further scheme of the utility model: the driving mechanism comprises a motor fixed in the inner cavity of the fixed column, a lead screw arranged in the inner cavity of the fixed column in a rotating mode and a lead screw nut fixed in the inner cavity of the lifting column and connected with the lead screw in a threaded mode, the output shaft end of the motor is connected with the lead screw in a transmission mode through a worm gear, and the rotating movement of the motor is converted into the rotating movement of the lead screw through the worm gear mechanism.

[0008] As a further scheme of the utility model: the rotating table is driven to rotate through the motor and the worm gear transmission, after the motor drives the worm gear, the worm gear rotates, the worm gear is fixed integrally with the upper end face of the rotating table, so the rotating table rotates, and the rotating table and the fixed column are connected through bolts and are driven to rotate together.

[0009] As a further scheme of the utility model: the sealing gasket is higher than the upper end face of the tank body.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. Multi-degree-of-freedom precise adjustment: the tank cover is driven to rotate around the shaft through the rotating table, and the vertical lifting of the lifting column is matched, so that the precise positioning of the horizontal angle and the height of the tank cover is realized, different working conditions are adapted, and the operation flexibility is significantly improved.

[0012] 2. Floating buffer sealing optimization: the cooperation of the floating slider and the guide rail sliding mechanism enables the lifting arm to be self-adaptively lowered when the tank cover is closed, ensures that the tank cover fully compresses the sealing gasket to a set height, avoids the rigid interference between the lifting mechanism and the sealing action when the tower buckle is locked, and greatly improves the sealing reliability.

[0013] 3. Stable transmission and self-locking: the worm gear transmission mechanism has high transmission ratio and self-locking function, can stably drive the rotating table and the lifting column to move, and can prevent displacement deviation caused by external force during operation, thereby improving the stability and safety of the equipment.

[0014] 4. Modular structure easy to maintain: the fixed column, the lifting column and the guide rail sliding mechanism are designed in a modular mode, are convenient to disassemble and maintain, simultaneously reduce the machining and assembly difficulty, and prolong the service life of the device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the utility model in a closed state.

[0016] Figure 2 It is a structure schematic view of the utility model in an open state.

[0017] Figure 3 This utility model Figure 1 A magnified view of a section at point A in the middle;

[0018] Figure 4 This utility model Figure 1 A magnified view of a section at point B in the middle;

[0019] Figure 5 This utility model Figure 1 A magnified view of a section at point C;

[0020] Figure 6 This is a top view of the structure of this utility model.

[0021] In the diagram: 1. Tank body; 2. Fixed base; 3. Rotary table; 4. Fixed column; 5. Lifting column; 6. Motor; 7. Lead screw; 9. Lifting arm; 10. Tank lid; 11. Floating slider; 12. Tower buckle; 13. Sealing gasket; 14. Slider; 15. Lead screw nut. Detailed Implementation

[0022] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0023] Please see Figures 1-6 This utility model provides a technical solution: a tank lid lifting device for a fermenter, including a tank body 1 and a fixed base 2 fixed on the ground. The top of the fixed base 2 is rotatably connected to a rotating platform 3 driven by a motor. Under the drive of the rotating platform 3, the tank lid 10 can rotate around the axis to the required angle. The top of the rotating platform 3 is fixedly connected to a fixed column 4. The inner cavity of the fixed column 4 is slidably connected to a lifting column 5 through a guide rail sliding mechanism. The lifting column 5 is driven by a driving mechanism.

[0024] A floating slider 11 is slidably connected to the top of the lifting column 5. During lifting, the floating slider 11 is at the lower limit of the slide rail. A lifting arm 9 is fixedly connected to the side of the floating slider 11, and a can cover 10 is fixedly connected to the bottom of the lifting arm 9. A buckle 12 connecting to the top of the can body 1 is provided on the side of the can cover 10. A sealing gasket 13 is fixed to the top of the can body 1, which contacts the bottom of the can cover 10. After the can cover 10 contacts the can body 1, the lifting arm 9 will descend a certain distance, so that the floating slider 11 is in the upper part of the track. This is to allow the lifting arm 9 a downward movement distance so that the lifting machine does not affect the sealing of the can lid 10 when the can lid 10 is fixed with the buckle 12. There is a sealing gasket 13 on the contact surface between the can lid 10 and the can body. The sealing gasket 13 is higher than the upper end of the can body 1. Only when the can lid 10 presses down the sealing gasket 13 to a certain height can the sealing performance of the can lid 10 be guaranteed. Without this mechanism, the lifting arm 9 will not be fixed when the can lid 10 is fixed, and the buckle 12 will have difficulty pressing down the can lid 10, which will affect the sealing performance of the can lid 10.

[0025] The guide rail sliding mechanism includes a guide rail fixed to the side of the inner cavity of the fixed column 4 and a slider 14 fixed to the side of the surface of the lifting column 5. The slider 14 is slidably disposed on the surface of the guide rail.

[0026] The drive mechanism includes a motor 6 fixed in the inner cavity of the fixed column 4, a lead screw 7 rotatably disposed in the inner cavity of the fixed column 4, and a lead screw nut 15 fixed in the inner cavity of the lifting column 5 and threadedly connected to the lead screw 7. The output shaft end of the motor 6 is connected to the lead screw 7 through a worm gear mechanism, so that the rotational motion of the motor 6 is converted into the rotational motion of the lead screw 7 through the worm gear mechanism.

[0027] The rotary table 3 is driven by a motor to rotate through a worm gear transmission. After the motor drives the worm, the worm gear rotates accordingly. The worm gear is fixed to the upper surface of the rotary table, so the rotary table 3 rotates accordingly. The rotary table 3 is connected to the fixed column 4 by bolts and is driven to rotate together.

[0028] The sealing gasket 13 is higher than the upper end face of the tank body 1.

[0029] When using this utility model, such as Figure 1 As shown, the fermenter lid lifting device includes a tank body 1 and a fixed base 2. A rotating table 3 is driven by a worm gear motor at the top of the fixed base 2. The rotating table 3 drives the fixed column 4 and the internal lifting column 5 to rotate as a whole. The fixed column 4 has a guide rail inside, and the slider 14 on the side wall of the lifting column 5 slides along the guide rail to ensure lifting stability. A drive motor 6 drives a lead screw 7 to rotate via a worm gear, which meshes with a lead screw nut 15 inside the lifting column 5, driving the lifting column 5 to rise and fall vertically along the guide rail.

[0030] A floating slider 11 is provided at the top of the lifting column 5, initially positioned at the lower limit of the slide rail. The lifting arm 9 is fixed to the side of the floating slider 11, and its end is connected to the can lid 10. A sealing gasket 13 higher than the upper surface is installed on the top of the can body 1. When the can lid 10 is closed, the lifting column 5 continues to descend, and the floating slider 11 moves upward along the slide rail, causing the lifting arm 9 to have a downward displacement margin. During the locking process of the can lid 10, the sealing gasket 13 is continuously pressed down to the set compression amount to ensure that the sealing surface is evenly stressed.

[0031] The specific operating procedure is as follows:

[0032] Can lid lifting: Start motor 6, lead screw 7 drives lifting column 5 to rise, causing can lid 10 to detach from can body 1 to a safe height;

[0033] Angle adjustment: The rotary table 3 motor drives the worm gear, which in turn drives the worm wheel and the rotary table 3 to rotate, so that the can cover 10 rotates around the axis to the designated position;

[0034] Can lid closing: The lifting column 5 descends, and after the can lid 10 contacts the sealing gasket 13, the floating slider 11 moves up along the slide rail. During the locking process of the tower buckle 12, the can lid 10 continuously presses down on the sealing gasket 13 until the floating slider 11 reaches the upper limit of the slide rail and the compression of the sealing gasket 13 reaches the standard.

[0035] Reset standby: After unlocking the tower buckle 12, the lifting column 5 rises, and the floating slider 11 resets to the lower limit of the slide rail, completing one operation cycle.

[0036] This device effectively solves the sealing problem caused by rigid connection in traditional lifting mechanisms through the synergistic effect of floating slider and guide rail. At the same time, it integrates rotation and lifting functions, significantly improving the automation level and sealing reliability of fermenter operation.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A tank lid lifting device for a fermenter, comprising a tank body (1) fixed to the ground and a fixing base (2), characterized in that: The top of the fixed base (2) is rotatably connected to a rotating platform (3) driven by a motor. The top of the rotating platform (3) is fixedly connected to a fixed column (4). The inner cavity of the fixed column (4) is slidably connected to a lifting column (5) through a guide rail sliding mechanism. The lifting column (5) is driven by a driving mechanism. The top of the lifting column (5) is slidably connected to a floating slider (11), the side of the floating slider (11) is fixedly connected to a lifting arm (9), the bottom of the lifting arm (9) is fixedly connected to a can lid (10), the side of the can lid (10) is provided with a buckle (12) that connects to the top of the can body (1), and the top of the can body (1) is fixed with a sealing gasket (13) that contacts the bottom of the can lid (10).

2. The tank lid lifting device for a fermenter according to claim 1, characterized in that: The guide rail sliding mechanism includes a guide rail fixed to the side of the inner cavity of the fixed column (4) and a slider (14) fixed to the side of the surface of the lifting column (5). The slider (14) is slidably disposed on the surface of the guide rail.

3. The tank lid lifting device for a fermenter according to claim 1, characterized in that: The drive mechanism includes a motor (6) fixed in the inner cavity of the fixed column (4), a lead screw (7) rotatably disposed in the inner cavity of the fixed column (4), and a lead screw nut (15) fixed in the inner cavity of the lifting column (5) and threadedly connected to the lead screw (7). The output shaft end of the motor (6) is connected to the lead screw (7) through a worm gear.

4. The tank lid lifting device for a fermenter according to claim 1, characterized in that: The rotary table (3) is driven to rotate by a worm gear transmission via a motor.

5. The tank lid lifting device for a fermenter according to claim 1, characterized in that: The sealing gasket (13) is higher than the upper surface of the tank body (1).

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