Disassembling and assembling device for manhole cover of fermentation tank

Abstract

The utility model relates to a manhole cover dismounting device for a fermentation tank, which comprises a sleeve and a bracket, a dismounting auxiliary ring is arranged on the sleeve, a grabbing clamp is arranged on the bracket, the sleeve is detachably connected with a manhole seat through the dismounting auxiliary ring, and the grabbing clamp is detachably connected with a manhole cover. A worker can separate the dismounting auxiliary ring from the manhole seat and separate the grabbing clamp from the manhole cover, so that the whole dismounting device for the manhole cover of the fermentation tank is separated from the manhole seat and the manhole cover of the fermentation tank, and excessive space occupation is avoided. Meanwhile, the dismounting auxiliary ring forms a platform below the manhole seat flange plate, after the flange bolt is dismounted, the dismounting auxiliary ring can support the flange bolt and semi-fix the flange bolt, the steps of manual collection and bolt matching are omitted, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to a manhole cover disassembly and assembly device, more specifically to a fermentation tank manhole cover disassembly and assembly device. Background Art

[0002] The existing fermentation tank manhole cover disassembly and assembly device needs to be connected to the fermentation tank, which is inconvenient to disassemble when not in use and takes up a lot of space. In addition, when personnel disassemble the flange bolts of the manhole cover and manhole seat, the disassembled flange bolts cannot be directly collected, which is easy to cause loss. In addition, it needs to be re-matched during installation, which is time-consuming and laborious. For example, patent publication number: CN208266166U, such as Figure 7 As shown, the screw rod of this device needs to remain connected to the manhole cover. When not in use, this device cannot be removed from the fermentation tank, which takes up a lot of space. In addition, this patent does not optimize or solve the problem of removing and installing the flange bolts used to fix the manhole cover. Summary of the invention

[0003] The purpose of the utility model is to provide a fermentation tank manhole cover disassembly and assembly device, which adds a gripping clamp and a disassembly and assembly auxiliary ring. The sleeve is detachably connected to the manhole seat through the disassembly and assembly auxiliary ring, and the gripping clamp is detachably connected to the manhole cover. When the manhole cover does not need to be disassembled, the personnel can separate the disassembly and assembly auxiliary ring from the manhole seat, and the gripping clamp from the manhole cover, thereby separating the entire fermentation tank manhole cover disassembly and assembly device from the fermentation tank manhole seat and the manhole cover to avoid excessive space occupation. At the same time, the disassembly and assembly auxiliary ring forms a platform under the flange of the manhole seat. After the flange bolts are disassembled, the disassembly and assembly auxiliary ring can support the flange bolts and semi-fix the flange bolts, eliminating the steps of manually collecting and matching bolts, saving time and effort.

[0004] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] The disassembly and assembly device of the manhole cover of a fermentation tank comprises a sleeve and a bracket, the middle part of the sleeve is connected to a clamp, the bracket is installed on the sleeve, one end of the bracket can cooperate with the sleeve, the other end of the bracket is connected to a screw sleeve, the side of the screw sleeve cooperates with the bracket, the screw sleeve is an internal threaded tube, the screw sleeve is threadedly connected to a screw, one end of the screw is connected to a hand wheel, and a screw connecting plate is installed on the other end of the screw, the middle part of the screw connecting plate cooperates with the screw, and a plurality of grabbing clamps are installed on the side of the screw connecting plate, the clamp is a disassembly and assembly auxiliary ring, the disassembly and assembly auxiliary ring is an annular structure with an opening on one side, the disassembly and assembly auxiliary ring is elastic, the middle part of the disassembly and assembly auxiliary ring is connected with the sleeve, fixing holes are provided at both ends of the opening of the disassembly and assembly auxiliary ring, fastening bolts and fastening nuts are installed at both ends of the opening of the disassembly and assembly auxiliary ring, and the screw rod of the fastening bolt passes through the fixing holes at both ends of the disassembly and assembly auxiliary ring and is threadedly connected with the fastening nut.

[0006] In order to further achieve the purpose of the utility model, the following technical solution can also be adopted: the disassembly and assembly auxiliary ring includes two arc-shaped plates, the two arc-shaped plates can cooperate to form a circular ring structure, one side of the two arc-shaped plates is hinged to the outer side of the sleeve, and the other side of the two arc-shaped plates has fixing holes.

[0007] The sleeve is a tubular shell structure with one end sealed, the open end of the sleeve cooperates with the bracket, the bracket is an L-shaped rod structure, and one end of the bracket can be plugged and matched with the sleeve.

[0008] The disassembly and assembly auxiliary ring is installed on the manhole seat, and the manhole cover is installed on the manhole seat. The matching parts of the manhole cover and the manhole seat are both flange structures with holes. Several first flange holes are opened on the manhole cover, and several second flange holes are opened on the manhole seat. The flanges of the manhole cover and the manhole seat are connected by flange bolts and flange nuts. The screw rods of the flange bolts pass through the second flange holes and the first flange holes in turn and are connected with the flange nuts. The distance between the upper surface of the disassembly and assembly auxiliary ring and the bottom surface of the flange of the manhole seat is less than the length of the flange bolts.

[0009] The other end of the screw is connected to a limit plate, the middle of the screw connecting plate is connected to a column, one end of the column is connected to a fixed tube, the limit plate is located between the fixed tube and the screw connecting plate, the screw is plugged into the fixed tube, and the limit plate cannot pass through the inner hole of the fixed tube.

[0010] One side of the gripper is hinged to the screw connecting plate, and the other side of the gripper is connected to the wedge block, a plane is arranged on the upper part of the wedge block, there are two grippers on the screw connecting plate, the two grippers are respectively located on both sides of the screw connecting plate, an elastic steel belt is installed between the two grippers, both sides of the elastic steel belt are respectively connected to the middle parts of the two grippers, the bottom of the screw connecting plate is connected to the first U-shaped plate, a screw hole is provided in the middle part of the first U-shaped plate, the first U-shaped plate is threadedly connected to the locking bolt through the screw hole, a first bearing is installed at the screw end of the locking bolt, the inner ring of the first bearing is welded after being plugged with the locking bolt, the outer ring of the first bearing is connected to the second U-shaped plate, and the groove part of the second U-shaped plate can cooperate with the elastic steel belt. The number of the grippers is more than three, one side of the gripper is hinged to the screw connecting plate, and the other side of the gripper is connected to the wedge block, and a plane is arranged on the upper part of the wedge block.

[0011] The advantages of the utility model are: the utility model adds a gripping clamp and a disassembly auxiliary ring, the sleeve is detachably connected to the manhole seat through the disassembly auxiliary ring, and the gripping clamp is detachably connected to the manhole cover. When the manhole cover does not need to be disassembled, the personnel can separate the disassembly auxiliary ring from the manhole seat, and the gripping clamp from the manhole cover, thereby separating the entire fermentation tank manhole cover disassembly device from the fermentation tank manhole seat and the manhole cover to avoid excessive space occupation. At the same time, the disassembly auxiliary ring forms a platform under the flange of the manhole seat. After the flange bolts are disassembled, the disassembly auxiliary ring can support the flange bolts and semi-fix the flange bolts, eliminating the steps of manually collecting and matching bolts, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the first step of the gripping and clamping of the utility model for clamping a manhole cover;

[0015] Figure 3 This is a schematic diagram of the structure of the second step of the gripping clamp of the utility model for clamping the manhole cover;

[0016] Figure 4 It is a schematic diagram of the structure of the gripping and releasing manhole cover of the utility model;

[0017] Figure 5 A schematic diagram of the structure of the utility model with an elastic steel belt added;

[0018] Figure 6 for Figure 5 A-direction enlarged structural schematic diagram;

[0019] Figure 7 It is a structural diagram of the prior art patent publication number: CN208266166U;

[0020] Figure 8 for Figure 1 A schematic diagram of the enlarged structure in the B direction;

[0021] Fig. 9 for Figure 8 Schematic diagram of the enlarged structure of Part I;

[0022] Fig.10 for Figure 8 Schematic diagram of the C-direction enlarged structure;

[0023] Fig.11 This is a schematic diagram of the structure after the flange bolts are removed.

[0024] Marked parts: 1. Screw sleeve; 2. Screw; 3. Clamp; 4. Handwheel; 5. Screw connecting plate; 6. Sleeve; 7. Bracket; 9. Disassembly and assembly auxiliary ring; 11. Fixing hole; 14. Tank body; 15. Manhole cover; 16. Manhole seat; 17. Flange bolt; 18. Flange nut; 20. Fixing pipe; 21. Limiting plate; 22. Column; 30. Plane; 31. Wedge block; 32. First U-shaped plate; 33. Second U-shaped plate; 34. First bearing; 35. Locking bolt; 36. Elastic steel belt; 90. Arc plate; 91. Fastening bolt; 93. Opening; 94. Fastening nut; 151. First flange hole; 161. Second flange hole. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0026] Embodiment 1:

[0027] Fermentation tank manhole cover disassembly and assembly device, such as Figure 1-Figure 11 As shown, it includes a sleeve 6 and a bracket 7, the middle part of the sleeve 6 is connected to a fixture, the bracket 7 is installed on the sleeve 6, one end of the bracket 7 can cooperate with the sleeve 6, the other end of the bracket 7 is connected to a screw sleeve 1, the side of the screw sleeve 1 cooperates with the bracket 7, the screw sleeve 1 is an internal threaded tube, the screw sleeve 1 is threadedly connected to a screw rod 2, one end of the screw rod 2 is connected to a hand wheel 4, the other end of the screw rod 2 is installed with a screw connecting plate 5, the middle part of the screw connecting plate 5 cooperates with the screw rod 2, and a plurality of gripping clamps are installed on the side of the screw connecting plate 5 3. The fixture is a disassembly and assembly auxiliary ring 9, which is a ring-shaped structure with an opening 93 on one side. The disassembly and assembly auxiliary ring 9 is elastic. The middle part of the disassembly and assembly auxiliary ring 9 is connected to the sleeve 6. The disassembly and assembly auxiliary ring 9 is provided with fixing holes 11 at both ends of the opening 93. The disassembly and assembly auxiliary ring 9 is provided with fastening bolts 91 and fastening nuts 94 at both ends of the opening 93. The screw rod of the fastening bolt 91 passes through the fixing holes 11 at both ends of the disassembly and assembly auxiliary ring 9 and is threadedly connected with the fastening nuts 94.

[0028] The utility model adds a gripper 3 and a disassembly auxiliary ring 9. The sleeve 6 is detachably connected to the manhole seat 16 through the disassembly auxiliary ring 9, and the gripper 3 is detachably connected to the manhole cover 15. When the manhole cover 15 does not need to be disassembled, the personnel can separate the disassembly auxiliary ring 9 from the manhole seat 16 and the gripper 3 from the manhole cover 15, thereby separating the entire fermentation tank manhole cover disassembly device from the fermentation tank manhole seat and the manhole cover to avoid excessive space occupation. At the same time, the disassembly auxiliary ring 9 forms a platform under the flange of the manhole seat 16. After the flange bolts 17 are disassembled, the disassembly auxiliary ring 9 can support the flange bolts 17 and semi-fix the flange bolts, eliminating the steps of manually collecting and matching bolts, saving time and effort.

[0029] Specific implementation of material selection and feasibility analysis: The samples we actually made use the drawings in the specification as drawings and are implemented according to the proportions and matching methods of the various components in the drawings. The connections mentioned are common connection methods such as strong adhesive connection, welding, riveting, flange connection, one-piece molding connection, etc. In actual production, the corresponding connection method, thickness and strength of the connection point can be selected creatively according to the actual connection strength requirements.

[0030] Embodiment 2:

[0031] Fermentation tank manhole cover disassembly and assembly device, such as Figure 1-Figure 6 As shown, the fermentation tank manhole cover disassembly and assembly device, such as Figure 1-Figure 6 As shown, it includes a sleeve 6 and a bracket 7, the middle part of the sleeve 6 is connected to a fixture, the bracket 7 is installed on the sleeve 6, one end of the bracket 7 can cooperate with the sleeve 6, the other end of the bracket 7 is connected to a screw sleeve 1, the side of the screw sleeve 1 cooperates with the bracket 7, the screw sleeve 1 is an internal threaded tube, the screw sleeve 1 is threadedly connected to a screw rod 2, one end of the screw rod 2 is connected to a hand wheel 4, the other end of the screw rod 2 is installed with a screw connecting plate 5, the middle part of the screw connecting plate 5 cooperates with the screw rod 2, and a plurality of gripping clamps are installed on the side of the screw connecting plate 5 3. The fixture is a disassembly and assembly auxiliary ring 9, which is a ring-shaped structure with an opening 93 on one side. The disassembly and assembly auxiliary ring 9 is elastic. The middle part of the disassembly and assembly auxiliary ring 9 is connected to the sleeve 6. The disassembly and assembly auxiliary ring 9 is provided with fixing holes 11 at both ends of the opening 93. The disassembly and assembly auxiliary ring 9 is provided with fastening bolts 91 and fastening nuts 94 at both ends of the opening 93. The screw rod of the fastening bolt 91 passes through the fixing holes 11 at both ends of the disassembly and assembly auxiliary ring 9 and is threadedly connected with the fastening nuts 94.

[0032] The disassembly and assembly auxiliary ring 9 includes two arc plates 90 , which can cooperate to form a circular ring structure. One side of the two arc plates 90 is hinged to the outer side of the sleeve 6 , and the other side of the two arc plates 90 is provided with fixing holes 11 .

[0033] The two arc-shaped plates 90 of the utility model can cooperate to form a circular ring structure, which can facilitate the disassembly and assembly of the auxiliary ring 9, and the opening that can be opened is larger, so that the disassembly and assembly of the auxiliary ring 9 and the separation of the manhole seat are convenient.

[0034] The sleeve 6 is a tubular shell structure with one end sealed. The open end of the sleeve 6 cooperates with the bracket 7. The bracket 7 is an L-shaped rod structure. One end of the bracket 7 can be plugged and matched with the sleeve 6.

[0035] The bracket 7 of the utility model can be plugged and matched with the sleeve 6, which can facilitate the bracket 7 to be separated from the sleeve 6.

[0036] The disassembly and assembly auxiliary ring 9 is installed on the manhole seat 16, and the manhole cover 15 is installed on the manhole seat 16. The matching parts of the manhole cover 15 and the manhole seat 16 are both flange structures with holes. Several first flange holes 151 are opened on the manhole cover 15, and several second flange holes 161 are opened on the manhole seat 16. The flanges of the manhole cover 15 and the manhole seat 16 are connected by flange bolts 17 and flange nuts 18. The screw rods of the flange bolts 17 pass through the second flange holes 161 and the first flange holes 151 in turn and are connected with the flange nuts 18. The distance between the upper surface of the disassembly and assembly auxiliary ring 9 and the bottom surface of the flange of the manhole seat 16 is less than the length of the flange bolts 17.

[0037] The distance between the upper surface of the disassembly and assembly auxiliary ring 9 and the bottom surface of the flange plate of the manhole seat 16 is smaller than the length of the flange bolt 17. After the flange bolt 17 is removed, the bottom of the flange bolt 17 can be supported in time while the screw rod of the flange bolt 17 is kept plugged into the second flange hole 161, thereby eliminating the steps of manually collecting and matching the bolts, saving time and effort.

[0038] Embodiment 3:

[0039] Fermentation tank manhole cover disassembly and assembly device, such as Figure 1-Figure 6 As shown, it includes a sleeve 6 and a bracket 7, the middle part of the sleeve 6 is connected to a fixture, the sleeve 6 is a tubular shell structure with one end sealed, the open end of the sleeve 6 cooperates with the bracket 7, the bracket 7 is an L-shaped rod structure, one end of the bracket 7 can be plugged and matched with the sleeve 6, the other end of the bracket 7 is connected to the screw sleeve 1, the side of the screw sleeve 1 cooperates with the bracket 7, the screw sleeve 1 is an internal threaded tube, the screw sleeve 1 is threadedly connected to the screw 2, one end of the screw 2 is connected to the hand wheel 4, the other end of the screw 2 is installed with a screw connecting plate 5, and the middle part of the screw connecting plate 5 cooperates with the screw 2 , several grippers 3 are installed on the side of the screw connecting plate 5. The clamp is a disassembly auxiliary ring 9. The disassembly auxiliary ring 9 is a ring-shaped structure with an opening 93 on one side. The disassembly auxiliary ring 9 is elastic. The middle part of the disassembly auxiliary ring 9 is connected to the sleeve 6. The disassembly auxiliary ring 9 is located at both ends of the opening 93. The disassembly auxiliary ring 9 is located at both ends of the opening 93. Fastening bolts 91 and fastening nuts 94 are installed. The screw rod of the fastening bolt 91 passes through the fixing holes 11 at both ends of the disassembly auxiliary ring 9 and is threadedly connected with the fastening nuts 94. The other end of the screw 2 is connected to the limit plate 21, the middle part of the screw connecting plate 5 is connected to the column 22, one end of the column 22 is connected to the fixed tube 20, the limit plate 21 is located between the fixed tube 20 and the screw connecting plate 5, the screw 2 and the fixed tube 20 are plug-fitted, and the limit plate 21 cannot pass through the inner hole of the fixed tube 20.

[0040] The combination of the fixing tube 20, the limiting plate 21, the column 22 and the like of the utility model can keep the screw 2 and the screw connecting plate 5 in cooperation and prevent the screw 2 from being separated from the screw connecting plate 5. At the same time, when the screw 2 is rotated, the screw connecting plate 5 can be prevented from rotating with the rotation of the screw 2.

[0041] Embodiment 4:

[0042] Fermentation tank manhole cover disassembly and assembly device, such as Figure 1-Figure 6 As shown, it includes a sleeve 6 and a bracket 7, the middle part of the sleeve 6 is connected to a fixture, the sleeve 6 is a tubular shell structure with one end sealed, the open end of the sleeve 6 cooperates with the bracket 7, the bracket 7 is an L-shaped rod structure, one end of the bracket 7 can be plugged and matched with the sleeve 6, the other end of the bracket 7 is connected to the screw sleeve 1, the side of the screw sleeve 1 cooperates with the bracket 7, the screw sleeve 1 is an internal threaded tube, the screw sleeve 1 is threadedly connected to the screw 2, one end of the screw 2 is connected to the hand wheel 4, the other end of the screw 2 is installed with a screw connecting plate 5, and the middle part of the screw connecting plate 5 cooperates with the screw 2 A number of grippers 3 are installed on the side of the screw connecting plate 5. The clamp is a disassembly and assembly auxiliary ring 9. The disassembly and assembly auxiliary ring 9 is a ring-shaped structure with an opening 93 on one side. The disassembly and assembly auxiliary ring 9 is elastic. The middle part of the disassembly and assembly auxiliary ring 9 is connected to the sleeve 6. Fixing holes 11 are provided at both ends of the disassembly and assembly auxiliary ring 9 located at the opening 93. Fastening bolts 91 and fastening nuts 94 are installed at both ends of the opening 93 of the disassembly and assembly auxiliary ring 9. The screw of the fastening bolt 91 passes through the fixing holes 11 at both ends of the disassembly and assembly auxiliary ring 9 and is threadedly connected with the fastening nuts 94. One side of the grabbing clamp 3 is hinged to the screw connecting plate 5, and the other side of the grabbing clamp 3 is connected to the wedge block 31. A plane 30 is set on the upper part of the wedge block 31. There are two grabbing clamps 3 on the screw connecting plate 5. The two grabbing clamps 3 are respectively located on both sides of the screw connecting plate 5. An elastic steel belt 36 is installed between the two grabbing clamps 3. The two sides of the elastic steel belt 36 are respectively connected to the middle parts of the two grabbing clamps 3. The bottom of the screw connecting plate 5 is connected to the first U-shaped plate 32. A screw hole is opened in the middle part of the first U-shaped plate 32. The first U-shaped plate 32 is threadedly connected to the locking bolt 35 through the screw hole. The first bearing 34 is installed on the screw end of the locking bolt 35. The inner ring of the first bearing 34 is welded after being plugged in with the locking bolt 35. The outer ring of the first bearing 34 is connected to the second U-shaped plate 33. The groove part of the second U-shaped plate 33 can cooperate with the elastic steel belt 36.

[0043] After the bolts and nuts between the manhole cover 15 and the manhole seat 16 of the utility model are disassembled, the personnel can control the tips of the wedge blocks 31 of the two grabbing clamps 3 to align with the gap between the manhole cover 15 and the manhole seat 16, and then the personnel can tighten the locking bolts 35, and the locking bolts 35 push the elastic steel belt 36 to tighten. At this time, the elastic steel belt 36 can push the grabbing clamp 3 to tighten, and then drive the tip of the wedge block 31 to be inserted between the manhole cover 15 and the manhole seat 16, so as to facilitate the fixation of the grabbing clamp 3 and the manhole cover 15, and facilitate the personnel to lift the manhole cover 15 by turning the screw sleeve 1 and the handwheel 4.

[0044] Embodiment 5:

[0045] Fermentation tank manhole cover disassembly and assembly device, such as Figure 1-Figure 6As shown, it includes a sleeve 6 and a bracket 7, the middle part of the sleeve 6 is connected to a fixture, the sleeve 6 is a tubular shell structure with one end sealed, the open end of the sleeve 6 cooperates with the bracket 7, the bracket 7 is an L-shaped rod structure, one end of the bracket 7 can be plugged and matched with the sleeve 6, the other end of the bracket 7 is connected to the screw sleeve 1, the side of the screw sleeve 1 cooperates with the bracket 7, the screw sleeve 1 is an internal threaded tube, the screw sleeve 1 is threadedly connected to the screw 2, one end of the screw 2 is connected to the hand wheel 4, the other end of the screw 2 is installed with a screw connecting plate 5, and the middle part of the screw connecting plate 5 cooperates with the screw 2 , several grippers 3 are installed on the side of the screw connecting plate 5, and the clamp is a disassembly auxiliary ring 9, which is a ring-shaped structure with an opening 93 on one side. The disassembly auxiliary ring 9 is elastic, and the middle part of the disassembly auxiliary ring 9 is connected to the sleeve 6. The disassembly auxiliary ring 9 is located at both ends of the opening 93. Both ends of the disassembly auxiliary ring 9 are provided with fixing holes 11. The two ends of the disassembly auxiliary ring 9 are located at the opening 93. Fastening bolts 91 and fastening nuts 94 are installed. The screw rod of the fastening bolt 91 passes through the fixing holes 11 at both ends of the disassembly auxiliary ring 9 and is threadedly connected with the fastening nuts 94. The number of the grippers 3 is more than three, one side of the gripper 3 is hinged to the screw connecting plate 5, and the other side of the gripper 3 is connected to the wedge block 31, and the upper part of the wedge block 31 is provided with a plane 30.

[0046] When disassembling the manhole cover of the utility model, a person can manually push the wedge block 31 of the grabbing clamp 3 to insert it between the manhole cover 15 and the manhole seat 16, so that several grabbing clamps 3 hook the manhole cover 15. At this time, the plane 30 cooperates with the bottom of the manhole cover 15, so that it is convenient for the person to lift the manhole cover 15 by rotating the screw sleeve 1 and the hand wheel 4.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention.

Claims

1. A fermentation tank manhole cover disassembly and assembly device, characterized in that: The invention comprises a sleeve (6) and a bracket (7), the middle part of the sleeve (6) is connected to a fixture, the bracket (7) is installed on the sleeve (6), one end of the bracket (7) can cooperate with the sleeve (6), the other end of the bracket (7) is connected to a screw sleeve (1), the side of the screw sleeve (1) cooperates with the bracket (7), the screw sleeve (1) is an internal threaded tube, the screw sleeve (1) is threadedly connected to a screw rod (2), one end of the screw rod (2) is connected to a hand wheel (4), the other end of the screw rod (2) is installed with a screw connecting plate (5), the middle part of the screw connecting plate (5) cooperates with the screw rod (2), and a plurality of gripping members are installed on the side circumference of the screw connecting plate (5). The clamp (3) is a disassembly and assembly auxiliary ring (9), the disassembly and assembly auxiliary ring (9) is a ring-shaped structure with an opening (93) on one side, the disassembly and assembly auxiliary ring (9) is elastic, the middle part of the disassembly and assembly auxiliary ring (9) is connected to the sleeve (6), and fixing holes (11) are provided at both ends of the disassembly and assembly auxiliary ring (9) located at the opening (93), and fastening bolts (91) and fastening nuts (94) are installed at both ends of the opening (93) of the disassembly and assembly auxiliary ring (9), and the screw rod of the fastening bolt (91) passes through the fixing holes (11) at both ends of the disassembly and assembly auxiliary ring (9) and is threadedly connected with the fastening nuts (94).

2. The fermentation tank manhole cover disassembly and assembly device according to claim 1, characterized in that: The disassembly and assembly auxiliary ring (9) comprises two arc-shaped plates (90), the two arc-shaped plates (90) being able to cooperate to form a circular ring structure, one side of the two arc-shaped plates (90) being hinged to the outer side of the sleeve (6), and the other side of the two arc-shaped plates (90) being provided with fixing holes (11).

3. The fermentation tank manhole cover disassembly and assembly device according to claim 1, characterized in that: The sleeve (6) is a tubular shell structure with one end sealed, the open end of the sleeve (6) cooperates with the bracket (7), the bracket (7) is an L-shaped rod structure, and one end of the bracket (7) can be plugged into and matched with the sleeve (6).

4. The fermentation tank manhole cover disassembly and assembly device according to claim 1, characterized in that: The disassembly and assembly auxiliary ring (9) is mounted on the manhole seat (16), and the manhole cover (15) is mounted on the manhole seat (16). The mating parts of the manhole cover (15) and the manhole seat (16) are both flange structures with holes. The manhole cover (15) is provided with a plurality of first flange holes (151), and the manhole seat (16) is provided with a plurality of second flange holes (161). The flanges of the manhole cover (15) and the manhole seat (16) are connected via flange bolts (17) and flange nuts (18). The screw rods of the flange bolts (17) sequentially pass through the second flange holes (161) and the first flange holes (151) and are then connected to the flange nuts (18). The distance between the upper surface of the disassembly and assembly auxiliary ring (9) and the bottom surface of the flange of the manhole seat (16) is less than the length of the flange bolts (17).

5. The fermentation tank manhole cover disassembly and assembly device according to claim 1, characterized in that: The other end of the screw rod (2) is connected to a limit plate (21), the middle of the screw rod connecting plate (5) is connected to a column (22), one end of the column (22) is connected to a fixed tube (20), the limit plate (21) is located between the fixed tube (20) and the screw rod connecting plate (5), the screw rod (2) and the fixed tube (20) are plug-fitted, and the limit plate (21) cannot pass through the inner hole of the fixed tube (20).

6. The fermentation tank manhole cover disassembly and assembly device according to claim 1, characterized in that: One side of the gripping clamp (3) is hinged to the screw connecting plate (5), and the other side of the gripping clamp (3) is connected to the wedge block (31). A plane (30) is arranged on the upper part of the wedge block (31). There are two gripping clamps (3) on the screw connecting plate (5). The two gripping clamps (3) are respectively located on both sides of the screw connecting plate (5). An elastic steel belt (36) is installed between the two gripping clamps (3). Both sides of the elastic steel belt (36) are respectively connected to the middle parts of the two gripping clamps (3). The screw connecting plate (5) The bottom of the first U-shaped plate (32) is connected to the first U-shaped plate (32), a screw hole is provided in the middle of the first U-shaped plate (32), the first U-shaped plate (32) is threadedly connected to the locking bolt (35) through the screw hole, the screw end of the locking bolt (35) is installed with the first bearing (34), the inner ring of the first bearing (34) and the locking bolt (35) are plugged and welded, the outer ring of the first bearing (34) is connected to the second U-shaped plate (33), and the groove portion of the second U-shaped plate (33) can cooperate with the elastic steel belt (36).

7. The fermentation tank manhole cover disassembly and assembly device according to claim 1, characterized in that: The number of the gripping clamps (3) is more than three, one side of the gripping clamp (3) is hinged to the screw connecting plate (5), the other side of the gripping clamp (3) is connected to the wedge block (31), and a plane (30) is arranged on the upper part of the wedge block (31).

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