Anaerobic bioreactor

Abstract

The utility model discloses an anaerobic bioreactor which comprises a supporting frame, a reaction kettle is arranged on the supporting frame, a top cover is arranged at the top end of the reaction kettle, a quick fixing mechanism is arranged between the reaction kettle and the top cover, and the quick fixing mechanism comprises an inserting rod, a fixing sleeve, a clamping groove, a sliding block, a clamping block, a sliding groove, a pushing block and a limiting mechanism. The inserting rod is inserted into the reaction kettle and the top cover, the fixing sleeve is inserted into the top end of the inserting rod, and the clamping groove is formed in the outer wall of the inserting rod, so that an operator can quickly connect the reaction kettle and the top cover without using any tool, the operation process is greatly simplified, and the equipment maintenance time is shortened; meanwhile, due to the multi-point clamping design, the stability and the sealing performance of connection are improved, the problem of gas leakage possibly occurring in an anaerobic environment is effectively prevented, and the device is particularly suitable for industrial wastewater treatment scenes needing to be frequently overhauled.

Description

Technical Field

[0001] This utility model relates to the field of reactor technology, and more specifically, to an anaerobic bioreactor. Background Technology

[0002] In the fields of industrial wastewater treatment and organic waste resource utilization, anaerobic bioreactors are widely used as core treatment equipment. Their operation and maintenance require regular inspection, cleaning and microbial inoculation of the reactor interior. However, the anaerobic bioreactors on the market generally have the problem of unreasonable design of the connection mechanism between the reactor and the top cover. They mostly use traditional methods such as bolt fastening or flange connection. The disassembly and assembly process is cumbersome and time-consuming, requiring professional tools and multiple people to cooperate. This not only prolongs the equipment downtime and reduces the treatment efficiency, but also increases the maintenance cost and labor intensity, making it difficult to meet the needs of modern industry for rapid equipment maintenance and efficient operation.

[0003] At bioenergy production and high-concentration organic wastewater treatment sites, operators often need to deal with emergencies such as abnormal system pressure, pipe blockage, or decreased microbial activity, which requires the ability to quickly open the reactor for inspection and treatment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides an anaerobic bioreactor to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an anaerobic bioreactor, comprising a support frame, on which a reaction vessel is mounted, and a top cover is provided at the top of the reaction vessel. A quick-fixing mechanism is provided between the reaction vessel and the top cover. The quick-fixing mechanism includes an insert rod, a fixing sleeve, a slot, a slider, a locking block, a sliding groove, a push block, and a limiting mechanism. The insert rod is inserted into the reaction vessel and the top cover, the fixing sleeve is inserted into the top of the insert rod, the slot is provided on the outer wall of the insert rod, the slider is provided with multiple sets that slide on the outer wall of the fixing sleeve, and the locking block is fixed on multiple... The bottom of the slider group has multiple sets of sliding grooves distributed on the outer wall of the fixed sleeve. The push block is fixed on the top of the multiple sets of sliders and slidably connected with the sliding grooves. The limiting mechanism includes a limiting sleeve, a connecting sleeve, a sliding rod, a limiting block, a rotating sleeve, a limiting hole, and an unlocking hole. The limiting sleeve is disposed on the outer wall of the fixed sleeve, the connecting sleeve is fixed at the bottom of the limiting sleeve, multiple sets of sliding rods are fixed on the bottom surface of the connecting sleeve, the limiting block is fixed at the bottom of the multiple sets of sliding rods, the rotating sleeve rotates on the outer wall of the fixed sleeve, multiple sets of limiting holes are distributed on the top surface of the rotating sleeve, and the unlocking hole is disposed at one end of the multiple sets of limiting holes.

[0008] The present invention is further provided with a sealing gasket between the top cover and the reactor. This design enhances the sealing performance between the reactor and the top cover, effectively prevents gas leakage in the anaerobic environment, ensures that the system maintains a stable anaerobic environment, and improves the safety and processing efficiency of the biological reaction process.

[0009] The present invention is further configured such that a positioning groove is provided on the outer wall of the insertion rod, and a positioning strip is provided on the inner wall of the fixing sleeve. Multiple sets of positioning grooves and positioning strips are provided and slidably connected. This structure ensures that the insertion rod and the fixing sleeve are accurately aligned and stably connected, preventing rotation or misalignment during insertion, simplifying the operation process, and improving the reliability and service life of the quick-fix structure.

[0010] The present invention is further configured such that a sliding hole is provided inside the insertion rod, a compression spring is connected inside the sliding hole, and a top block is connected to the top of the compression spring. The top block slides inside the sliding hole. This elastic structure allows the insertion rod to automatically pop out the fixing sleeve when disassembling, achieving rapid separation without the need for additional tools, greatly improving disassembly efficiency, and is particularly suitable for rapid response needs in emergency situations.

[0011] The present invention is further configured such that a push spring is connected between each of the multiple sets of push blocks and the slide groove, and multiple sets of push springs are provided. The outer wall of each of the multiple sets of push blocks is set as an inclined surface. This design enables the push blocks to have an automatic reset function, and the inclined surface structure facilitates smooth contact with the limiting sleeve, realizing the precise disengagement of the card block from the card groove, ensuring the smoothness of the disassembly process and the convenience of operation, and reducing the labor intensity of the operator.

[0012] The present invention is further configured such that a guide groove is provided on the outer wall of the fixed sleeve, and a guide plate is fixedly provided on the inner wall of the limiting sleeve. Multiple sets of guide grooves and guide plates are provided and slidably connected. This guiding mechanism ensures that the limiting sleeve will not rotate when it moves axially, ensuring the accuracy of the sliding trajectory, improving the reliability of the limiting function, reducing wear between components, and extending the service life of the device.

[0013] The present invention is further configured such that a quick-release mechanism is provided between the rotating sleeve and the connecting sleeve. The quick-release mechanism includes a tension spring, a connecting ring, an arc-shaped block, and an annular groove. The tension spring is disposed on the outer wall of multiple sets of sliding rods and its top end is fixedly connected to the connecting sleeve. The connecting ring is fixed to the bottom end of multiple sets of tension springs. The arc-shaped block is fixed to the bottom surface of multiple sets of connecting rings. The annular groove is disposed on the top surface of the rotating sleeve and is slidably connected to multiple sets of arc-shaped blocks. This combined structure realizes precise control of the limiting sleeve when the rotating sleeve rotates. The sliding connection between the arc-shaped block and the annular groove ensures smooth rotation. The tension spring provides automatic return force, so that the entire disassembly process can be completed with just a simple rotation, greatly simplifying the operation steps.

[0014] The present invention is further configured such that a pressing block is fixedly provided on the bottom surface of the rotating sleeve, and multiple sets of the pressing block are provided, each with a limiting rod fixedly provided on its outer wall. A baffle is fixedly provided on the outer wall of the fixed sleeve, and multiple sets of the baffle are provided and slidably connected to multiple sets of limiting rods respectively. Each set of limiting rods has a return spring on its outer wall. This design provides an automatic reset function for the rotating sleeve through the return spring, ensuring that the limiting block can reliably return to the limiting hole for secondary locking, preventing accidental unlocking. At the same time, the cooperation between the pressing block and the limiting rod provides a stable rotation trajectory, improving the operational safety and reliability of the system.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides an anaerobic bioreactor with the following beneficial effects:

[0017] 1. The quick-connect mechanism adopts a combination design of insert rod, fixed sleeve, slot, slider, locking block, sliding groove, and push block, which cleverly solves the problem of inconvenient connection between the reactor and the top cover mentioned in the background technology. The mechanism forms a main connection between the reactor and the top cover by inserting rod through the reactor. The fixed sleeve is precisely inserted into the top of the insert rod. Multiple sets of sliders slide on the outer wall of the fixed sleeve and drive the locking block to form a locking engagement with the slot on the insert rod. The design of the sliding groove and push block realizes the precise guidance and control of the slider. This innovative structure allows operators to complete the quick connection between the reactor and the top cover without using any tools, which greatly simplifies the operation process and shortens the equipment maintenance time. At the same time, the multi-point locking design improves the stability and sealing of the connection, effectively preventing gas leakage problems that may occur in the anaerobic environment. It is particularly suitable for industrial wastewater treatment scenarios that require frequent maintenance.

[0018] 2. The limiting mechanism consists of a limiting sleeve, a connecting sleeve, a sliding rod, a limiting block, a rotating sleeve, a limiting hole, and an unlocking hole. It provides reliable safety for the quick-fix mechanism. The limiting sleeve is set on the outer wall of the fixed sleeve to form a second line of defense. The connecting sleeve is fixed to the bottom of the limiting sleeve to ensure integrity. The design of multiple sets of sliding rods and limiting blocks enables precise control of the rotating sleeve. The limiting hole and unlocking hole on the rotating sleeve work together to achieve locking and unlocking functions. This mechanism can complete the secondary locking of the quick-fix mechanism through a simple rotation operation, preventing accidental loosening due to vibration or pressure changes during equipment operation. At the same time, the design of the guide groove and guide plate ensures the precise sliding of the limiting sleeve. The application of the sealing gasket further enhances the system's sealing performance. The overall design not only ensures ease of operation but also significantly improves the safety of equipment operation, solving the problem of poor sealing that is prone to occur in traditional connection methods in high humidity and corrosive environments.

[0019] 3. The quick-release mechanism includes a tension spring, a connecting ring, an arc-shaped block, and an annular groove, providing convenient disassembly for the entire system. The tension spring is located on the outer wall of the slide rod and is fixedly connected to the connecting sleeve to provide elastic return force. The connecting ring is fixed to the bottom of the tension spring to form a force transmission structure. The sliding connection design of the arc-shaped block and the annular groove enables precise control of the rotating sleeve. This mechanism works in conjunction with the limiting mechanism and the quick-locking mechanism. By simply rotating the rotating sleeve, the limiting block can be driven into the unlocking hole. The tension spring automatically pulls the limiting sleeve to release the contact with the push block. The push spring pushes the push block to drive the locking block out of the locking groove. The compression spring pushes the top block to make the insertion rod automatically pop out. This design of multiple elastic elements working together enables one-step quick disassembly of the reactor and the top cover, greatly improving equipment maintenance efficiency and reducing the labor intensity of operators. It is especially suitable for working conditions that require emergency pressure relief or response to emergencies, effectively solving the technical problem of slow response speed in traditional connection methods. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an anaerobic bioreactor according to the present invention;

[0021] Figure 2 This is a schematic diagram of the disassembly structure of the top cover in this utility model;

[0022] Figure 3 This is a cross-sectional view of the fixing sleeve and the insertion rod in this utility model;

[0023] Figure 4 This is a schematic diagram of the quick-release mechanism in this utility model;

[0024] Figure 5 This is a schematic diagram of the rotating sleeve in this utility model.

[0025] In the diagram: 1. Support frame; 2. Reactor; 3. Top cover; 4. Insert rod; 5. Fixing sleeve; 6. Slot; 7. Slider; 8. Locking block; 9. Slide groove; 10. Push block; 11. Limiting sleeve; 12. Connecting sleeve; 13. Slide rod; 14. Limiting block; 15. Rotating sleeve; 16. Limiting hole; 17. Unlocking hole; 18. Sealing gasket; 19. Positioning groove; 20. Positioning strip; 21. Slide hole; 22. Compression spring; 23. Top block; 24. Push spring; 25. Guide groove; 26. Guide plate; 27. Tension spring; 28. Connecting ring; 29. ​​Arc-shaped block; 30. Annular groove; 31. Extrusion block; 32. Limiting rod; 33. Baffle; 34. Reset spring. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5 An anaerobic bioreactor includes a support frame 1, on which a reactor 2 is mounted. A top cover 3 is located at the top of the reactor 2. A quick-setting mechanism is provided between the reactor 2 and the top cover 3. The quick-setting mechanism includes an insertion rod 4, a fixing sleeve 5, a slot 6, a slider 7, a locking block 8, a sliding groove 9, a push block 10, and a limiting mechanism. The insertion rod 4 is inserted into the reactor 2 and the top cover 3. The fixing sleeve 5 is inserted into the top of the insertion rod 4. The slot 6 is located on the outer wall of the insertion rod 4. Multiple sliders 7 slide on the outer wall of the fixing sleeve 5. The locking block 8 is fixed to the bottom of multiple sliders 7. Multiple sliding grooves 9 are distributed on the outer wall of the fixing sleeve 5. The push block 10 is fixed to the top of multiple sets of sliders 7 and slidably connected to the slide groove 9. The limiting mechanism includes a limiting sleeve 11, a connecting sleeve 12, a slide rod 13, a limiting block 14, a rotating sleeve 15, a limiting hole 16, and an unlocking hole 17. The limiting sleeve 11 is set on the outer wall of the fixed sleeve 5. The connecting sleeve 12 is fixed to the bottom end of the limiting sleeve 11. Multiple sets of slide rods 13 are fixed to the bottom surface of the connecting sleeve 12. The limiting block 14 is fixed to the bottom end of multiple sets of slide rods 13. The rotating sleeve 15 rotates on the outer wall of the fixed sleeve 5. Multiple sets of limiting holes 16 are distributed on the top surface of the rotating sleeve 15. The unlocking hole 17 is set at one end of the multiple sets of limiting holes 16.

[0030] A sealing gasket 18 is provided between the top cover 3 and the reactor 2. The sealing gasket 18 forms an airtight space between the top cover 3 and the reactor 2 to prevent gas leakage in the anaerobic environment, ensure that the reactor maintains a stable anaerobic condition, and improve biodegradation efficiency and system safety.

[0031] The outer wall of the insertion rod 4 is provided with a positioning groove 19, and the inner wall of the fixing sleeve 5 is provided with a positioning strip 20. Multiple sets of positioning grooves 19 and positioning strips 20 are provided and are slidably connected. The positioning grooves 19 and positioning strips 20 form a slot-type connection structure, which realizes the precise alignment and stable connection between the insertion rod 4 and the fixing sleeve 5, prevents rotation or misalignment during operation, simplifies the connection process, and improves structural stability.

[0032] The insertion rod 4 has a sliding hole 21, and a compression spring 22 is connected inside the sliding hole 21. A top block 23 is connected to the top of the compression spring 22, and the top block 23 slides within the sliding hole 21. The compression spring 22 provides elastic support to the top block 23, stores energy when the top block 23 is compressed, and releases energy to push the top block 23 when unlocking, so that the insertion rod 4 automatically pops out of the fixing sleeve 5, realizing the quick disassembly function.

[0033] Multiple sets of push blocks 10 are connected to the slide groove 9 by push springs 24. There are multiple sets of push springs 24, and the outer walls of the multiple sets of push blocks 10 are all set with slopes. The push springs 24 provide restoring force for the push blocks 10, so that the locking block 8 can automatically disengage from the locking groove 6 in the unlocked state. The sloped design of the outer wall of the push block 10 allows it to slide smoothly when it contacts the limiting sleeve 11, reducing operating resistance.

[0034] The outer wall of the fixed sleeve 5 is provided with a guide groove 25, and the inner wall of the limiting sleeve 11 is fixed with a guide plate 26. Multiple sets of guide grooves 25 and guide plates 26 are provided and are slidably connected. The guide grooves 25 and guide plates 26 form a linear sliding guide mechanism to ensure that the limiting sleeve 11 will not rotate or deviate when moving axially, and to ensure the precise alignment and reliable contact between the limiting sleeve 11 and the push block 10.

[0035] A quick-release mechanism is provided between the rotating sleeve 15 and the connecting sleeve 12. The quick-release mechanism includes a tension spring 27, a connecting ring 28, an arc-shaped block 29, and an annular groove 30. The tension spring 27 is set on the outer wall of the multiple sets of slide rods 13 and its top end is fixedly connected to the connecting sleeve 12. The connecting ring 28 is fixed to the bottom end of the multiple sets of tension springs 27. The arc-shaped block 29 is fixed to the bottom surface of the multiple sets of connecting rings 28. The annular groove 30 is set on the top surface of the rotating sleeve 15 and is slidably connected to the multiple sets of arc-shaped blocks 29. The tension spring 27 stores energy in the stretched state. When unlocked, it drives the connecting sleeve 12 and the limiting sleeve 11 to return to their original positions quickly. The arc-shaped block 29 and the annular groove 30 cooperate to form a precise rotation guide, so that the rotational motion of the rotating sleeve 15 is converted into the axial displacement of the arc-shaped block 29.

[0036] A pressing block 31 is fixedly provided on the bottom surface of the rotating sleeve 15. Multiple sets of pressing blocks 31 are provided, and each set has a limiting rod 32 fixedly provided on its outer wall. A baffle 33 is fixedly provided on the outer wall of the fixed sleeve 5. Multiple sets of baffles 33 are provided and slidably connected to multiple sets of limiting rods 32. Each set of limiting rods 32 has a return spring 34 on its outer wall. The pressing block 31 moves as the rotating sleeve 15 rotates, applying force to the baffle 33 through the limiting rods 32. The return spring 34 provides an automatic reset function, ensuring that the rotating sleeve 15 automatically rotates back to the locked position after being released, preventing accidental unlocking.

[0037] In this embodiment, during use, the sealing gasket 18 is placed between the reactor 2 and the top cover 3. Then, the insertion rod 4 is inserted into the reactor 2, the sealing gasket 18, and the top cover 3. The fixing sleeve 5 is then inserted into the top of the insertion rod 4. Multiple sets of positioning strips 20 are positioned and inserted into the positioning grooves 19. The top block 23 abuts against the inner wall of the fixing sleeve 5 and compresses the compression spring 22. Rotating the rotating sleeve 15 moves multiple sets of sliding rods 13 into the unlocking hole 17, while simultaneously driving multiple sets of compression blocks 31 to compress the reset spring 34, pushing the limiting sleeve 11 to abut. Multiple sets of push blocks 10 are stretched on the outer wall and multiple sets of tension springs 27 are stretched. Push blocks 10 slide along the slide groove 9 and multiple sets of push springs 24 are squeezed. Multiple sets of sliders 7 push the locking block 8 to engage in the locking groove 6 to lock the insertion rod 4. At this time, multiple sets of limiting blocks 14 are in the unlocking hole 17. Multiple sets of reset springs 34 push the squeezing block 31 to drive the rotating sleeve 15 to rotate, so that multiple sets of limiting blocks 14 slide into the limiting hole 16 to limit the limiting sleeve 11. By operating in sequence, the reaction vessel 2 and the top cover 3 can be quickly fixed.

[0038] More specifically, when it is necessary to disassemble the top cover 3, rotating the rotating sleeve 15 causes multiple sets of limiting blocks 14 to move into the unlocking hole 17, releasing the limiting sleeve 11. Multiple sets of tension springs 27 pull the limiting sleeve 11 to release the contact with multiple sets of push blocks 10. Multiple sets of push springs 24 push the push block 10 to slide along the slide groove 9 and pull the locking block 8 out of the locking groove 6 through the slider 7, thereby releasing the locking of the insertion rod 4. The compression spring 22 resets and pushes the top block 23, causing the insertion rod 4 to pop out of the fixing sleeve 5. The disassembly of the top cover 3 is completed by operating in sequence.

[0039] In summary, during the use or operation of the entire equipment: When in use, place the sealing gasket 18 between the reactor 2 and the top cover 3. Then, insert the insertion rod 4 into the reactor 2, the sealing gasket 18, and the top cover 3. Next, insert the fixing sleeve 5 into the top of the insertion rod 4. Positioning is achieved through multiple sets of positioning strips 20 and positioning grooves 19. The top block 23 abuts against the inner wall of the fixing sleeve 5 and compresses the compression spring 22. Rotating the rotating sleeve 15 moves multiple sets of sliding rods 13 into the unlocking hole 17, simultaneously driving multiple sets of compression blocks 31 to compress the reset spring 34, pushing the limit switch. The sleeve 11 abuts against the outer wall of multiple sets of push blocks 10 and stretches multiple sets of tension springs 27. The push blocks 10 slide along the slide groove 9 and squeeze multiple sets of push springs 24. Multiple sets of sliders 7 push the locking block 8 to engage in the locking groove 6 to lock the insertion rod 4. At this time, multiple sets of limiting blocks 14 are in the unlocking hole 17. Multiple sets of reset springs 34 push the squeezing block 31 to drive the rotating sleeve 15 to rotate, so that multiple sets of limiting blocks 14 slide into the limiting hole 16 to limit the limiting sleeve 11. By operating in sequence, the reaction vessel 2 and the top cover 3 can be quickly fixed.

[0040] When it is necessary to disassemble the top cover 3, rotate the rotating sleeve 15 to move multiple sets of limiting blocks 14 into the unlocking hole 17, release the limiting sleeve 11, pull the limiting sleeve 11 through multiple sets of tension springs 27 to release the contact with multiple sets of push blocks 10, push the push block 10 along the slide groove 9 through multiple sets of push springs 24 and pull the locking block 8 out of the slot 6 through the slider 7, thereby releasing the locking of the insertion rod 4, and push the top block 23 through the compression spring 22 to make the insertion rod 4 pop out of the fixing sleeve 5. The disassembly of the top cover 3 is completed by operating in sequence.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An anaerobic bioreactor, comprising a support frame (1), characterized in that: A reaction vessel (2) is mounted on the support frame (1). A top cover (3) is provided at the top of the reaction vessel (2). A quick-release mechanism is provided between the reaction vessel (2) and the top cover (3). The quick-release mechanism includes a rod (4), a fixing sleeve (5), a slot (6), a slider (7), a locking block (8), a sliding groove (9), a push block (10), and a limiting mechanism. The rod (4) is inserted into the reaction vessel (2) and the top cover (3). The fixing sleeve (5) is inserted into the top of the rod (4). The slot (6) is provided on the outer wall of the rod (4). The slider (7) is provided with multiple sets sliding on the outer wall of the fixing sleeve (5). The locking block (8) is fixed to the bottom of multiple sets of sliders (7). The sliding groove (9) is provided with multiple sets distributed on the outer wall of the fixing sleeve (5). The push block (8) is provided on the outer wall of the fixing sleeve (5). 10) Fixed to the top of multiple sets of sliders (7) and slidably connected to the slide groove (9), the limiting mechanism includes a limiting sleeve (11), a connecting sleeve (12), a slide rod (13), a limiting block (14), a rotating sleeve (15), a limiting hole (16) and an unlocking hole (17). The limiting sleeve (11) is set on the outer wall of the fixed sleeve (5), the connecting sleeve (12) is fixed on the bottom end of the limiting sleeve (11), multiple sets of slide rods (13) are fixed on the bottom surface of the connecting sleeve (12), the limiting block (14) is fixed on the bottom end of multiple sets of slide rods (13), the rotating sleeve (15) rotates on the outer wall of the fixed sleeve (5), multiple sets of limiting holes (16) are distributed on the top surface of the rotating sleeve (15), and the unlocking hole (17) is set at one end of multiple sets of limiting holes (16).

2. The anaerobic bioreactor according to claim 1, characterized in that: A sealing gasket (18) is provided between the top cover (3) and the reactor (2).

3. An anaerobic bioreactor according to claim 2, characterized in that: The outer wall of the insertion rod (4) is provided with a positioning groove (19), and the inner wall of the fixing sleeve (5) is provided with a positioning strip (20). The positioning groove (19) and the positioning strip (20) are provided in multiple sets and are slidably connected.

4. An anaerobic bioreactor according to claim 3, characterized in that: The insert (4) has a sliding hole (21) inside, and a compression spring (22) is connected inside the sliding hole (21). A top block (23) is connected to the top of the compression spring (22), and the top block (23) slides inside the sliding hole (21).

5. An anaerobic bioreactor according to claim 4, characterized in that: multiple sets Push springs (24) are connected between the push block (10) and the slide (9). Multiple sets of push springs (24) are provided, and the outer walls of the multiple sets of push blocks (10) are all set as inclined surfaces.

6. An anaerobic bioreactor according to claim 5, characterized in that: The outer wall of the fixed sleeve (5) is provided with a guide groove (25), and the inner wall of the limiting sleeve (11) is fixed with a guide plate (26). The guide groove (25) and the guide plate (26) are provided in multiple sets and are slidably connected.

7. An anaerobic bioreactor according to claim 6, characterized in that: A quick-release mechanism is provided between the rotating sleeve (15) and the connecting sleeve (12). The quick-release mechanism includes a tension spring (27), a connecting ring (28), an arc block (29), and an annular groove (30). The tension spring (27) is provided on the outer wall of the multiple sets of slide rods (13) and the top end is fixedly connected to the connecting sleeve (12). The connecting ring (28) is fixed at the bottom end of the multiple sets of tension springs (27). The arc block (29) is fixed on the bottom surface of the multiple sets of connecting rings (28). The annular groove (30) is provided on the top surface of the rotating sleeve (15) and is slidably connected to the multiple sets of arc blocks (29).

8. An anaerobic bioreactor according to claim 7, characterized in that: The bottom surface of the rotating sleeve (15) is fixedly provided with a pressing block (31). The pressing block (31) is provided in multiple sets and each of the outer walls is fixedly provided with a limiting rod (32). The outer wall of the fixed sleeve (5) is fixedly provided with a baffle (33). The baffle (33) is provided in multiple sets and is slidably connected to multiple sets of limiting rods (32). Each of the multiple sets of limiting rods (32) is provided with a return spring (34) on its outer wall.

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