Drum leakage-proof device

Abstract

The utility model provides a rotary drum leakproof device, relates to rotary drum technical field, rotary drum leakproof device includes sealing cover, sealing fin, rotating shaft, rotating shaft seat, sliding seat and driving mechanism, one end of the rotating shaft is connected with the sealing cover, the surface of the sealing cover is connected with the sealing fin, the sealing fin is used for sealing the drum mouth of the rotary drum, and the sliding seat is used for driving the rotating shaft seat to rotate. One end of the rotating shaft is connected with the rotating shaft seat, the other end of the rotating shaft is connected with the rotating shaft seat, the rotating shaft is used for rotating along the axis of the rotating shaft, the sliding seat is slidably connected below the rotating shaft seat, and the driving mechanism is used for driving the rotating shaft seat to slide towards or away from the drum opening relative to the sliding seat. The sealing cover with the sealing piece is arranged at one end of the drum opening of the rotary drum, one side of the sealing cover is connected with the rotating shaft, the rotating shaft can rotate relative to the rotating shaft seat, the rotating shaft seat can slide towards the drum opening relative to the sliding seat under the driving of the driving mechanism, the sealing piece is tightly attached to the drum opening, materials such as coke in the rotary drum can be prevented from splashing, and environmental pollution is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary drums, in particular to a rotary drum leakage prevention device. Background Art

[0002] The drum is a rotating part in a mechanical device, also known as a drum. One end of the drum is open, and materials are put into the drum from the drum mouth. When the drum rotates, the materials turn over in the drum. The drum can be used to test the mechanical strength of coke in industrial production. The coke sample is placed in the drum and turned over for a period of time, and then tested to evaluate its mechanical strength. However, since the coke contains impurities such as fragments and fly ash, they will fly out of the drum mouth when it turns over and be exposed to the air to pollute the environment. Utility Model Content

[0003] The problem to be solved by the utility model is how to prevent the materials in the drum from splashing and polluting the environment.

[0004] To this end, the utility model provides a rotary drum leakage prevention device, including a sealing cover, a sealing plate, a rotating shaft, a rotating shaft seat, a sliding seat and a driving mechanism, one end of the rotating shaft is connected to the sealing cover, the sealing cover is connected to the sealing plate on the side surface away from the rotating shaft, the sealing plate is used to seal with the drum mouth of the rotary drum, the other end of the rotating shaft is connected to the rotating shaft seat, the rotating shaft is used to rotate along the axis of the rotating shaft, the rotating shaft seat is slidably connected to the sliding seat, and the driving mechanism is used to drive the rotating shaft seat to slide toward or away from the drum mouth relative to the sliding seat.

[0005] Optionally, the sealing cover includes an annular connecting plate assembly, a connecting beam and a fixed cylinder, the axis of the connecting plate assembly is colinear with the axis of the fixed cylinder, the sealing plate is connected to the side of the connecting plate assembly away from the fixed cylinder, one end of a plurality of the connecting beams are evenly connected around the connecting plate assembly toward the side of the fixed cylinder, the other ends of a plurality of the connecting beams are evenly connected to the circumferential outer surface of the fixed cylinder, and the fixed cylinder is sleeved on the rotating shaft.

[0006] Optionally, the connecting plate assembly includes a plurality of annular connecting plates, which are arranged in sequence along the axial direction of the connecting plate assembly and connected by bolts.

[0007] Optionally, the rotating shaft seat includes a sliding plate and a bearing seat, the sliding plate is slidably connected to the sliding seat, the bearing seat is connected to the sliding plate, and the rotating shaft is rotatably connected to the bearing seat.

[0008] Optionally, a rectangular through hole is provided on the sliding plate, and slideways are provided on the opposite surfaces of the circumference of the sliding seat, and the slideways extend along the axial direction of the rotating shaft. The sliding plate is sleeved on the sliding seat, and the length of the through hole along the axial direction of the rotating shaft is greater than the size of the sliding seat along the axial direction of the rotating shaft. The hole walls on both sides of the through hole extending along the axial direction of the rotating shaft are respectively embedded in two of the slideways and are slidably connected to the slideways.

[0009] Optionally, the driving mechanism includes an electric push rod, and a telescopic end of the electric push rod is connected to the sliding plate.

[0010] Optionally, a push plate is connected to the lower surface of the sliding plate, and the telescopic end of the electric push rod is connected to the push plate.

[0011] Optionally, the rotary drum leakage prevention device further comprises a base, and the electric push rod and the sliding seat are both connected to the base.

[0012] Optionally, a connecting seat is further provided on one end of the upper surface of the base away from the sealing cover, and the fixed end of the electric push rod is connected to the connecting seat.

[0013] Optionally, the rotary drum leakage prevention device further comprises a cover body, wherein the cover body is disposed on the rotary shaft seat, the sliding seat and the electric push rod.

[0014] Compared with the prior art, the beneficial effects of the rotary drum leakage prevention device of the utility model are:

[0015] The utility model provides a sealing cover 2 at one end of the drum mouth 9, a sealing sheet 1 is provided on the surface of the sealing cover 2, the end of the sealing cover 2 away from the sealing sheet 1 is connected with a rotating shaft 3 and a rotating shaft seat 4 in sequence, a sliding seat 5 is connected below the rotating shaft seat 4, a driving mechanism is provided to be drivingly connected with the sliding seat 5, the driving mechanism can drive the rotating shaft seat 4 to slide toward or away from the drum mouth 9 relative to the sliding seat 5, that is, to slide along the X-axis direction, when the driving mechanism drives the rotating shaft seat 4 to slide toward the drum mouth 9, the rotating shaft 3, the sealing cover 2 and the sealing sheet 1 are driven to slide together until the sealing sheet 1 is sealed on the drum mouth 9, the sealing cover 2 provides support for the sealing sheet 1, so that the sealing sheet 1 is tightly attached to the drum mouth 9, and the sliding The movable seat 5 provides support for the shaft seat 4 and the shaft 3 in the vertical direction, i.e., the Z-axis direction, to increase the overall structural stability of the device. The shaft 3 is rotatably connected to the shaft seat 4 and can rotate on its own. When the drum is working, the drum drives the sealing sheet 1, the sealing cover 2 and the shaft 3 to rotate relative to the shaft seat 4 along the axis of the shaft 3, i.e., around the X-axis. Since the sealing sheet 1 rotates with the drum, the drum mouth 9 can also be pressed during the rotation of the drum, so that the materials in the drum, such as coke, can be prevented from splashing and spreading outside the drum, thereby preventing environmental pollution. When the driving mechanism drives the shaft seat 4 to slide relative to the sliding seat 5 in a direction away from the drum mouth 9, the sealing sheet 1 is separated from the drum mouth 9, and the materials can be taken out or added. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the structural schematic diagrams of the rotary drum leakage prevention device described in the embodiment of the utility model;

[0017] Figure 2 This is the second structural schematic diagram of the rotary drum leakage prevention device described in the embodiment of the utility model.

[0018] Description of reference numerals:

[0019] 1-sealing sheet; 2-sealing cover; 21-connecting plate assembly; 22-connecting beam; 23-fixing cylinder; 3-rotating shaft; 4-rotating shaft seat; 41-sliding plate; 42-bearing seat; 5-sliding seat; 6-electric push rod; 7-base; 71-connecting seat; 72-fixing plate; 81-pushing plate; 83-cover body; 84-stop plate; 9-drum mouth. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] It should be noted that, in the description of the present invention, the directions or positional relationships indicated by “upper”, “lower”, “left”, “right”, “top”, “bottom”, “front”, “back”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it cannot be understood as limiting the scope of protection of the present invention.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0023] Moreover, although the present invention is described with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments, and other arrangements may be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features herein may be combined in ways not described in the original claims. It may also be understood that the features described in conjunction with the independent embodiments may be used in other embodiments.

[0024] To solve the above problems, Figure 1 and Figure 2As shown, the utility model provides a rotary drum leakage prevention device, comprising a sealing cover 2, a sealing sheet 1, a rotating shaft 3, a rotating shaft seat 4, a sliding seat 5 and a driving mechanism, one end of the rotating shaft 3 is connected to the sealing cover 2, a side surface of the sealing cover 2 away from the rotating shaft 3 is connected to the sealing sheet 1, the sealing sheet 1 is used for sealingly cooperating with a drum mouth 9 of the rotary drum, the other end of the rotating shaft 3 is connected to the rotating shaft seat 4, the rotating shaft 3 is used to rotate along the axis of the rotating shaft 3, the rotating shaft seat 4 is slidably connected to the sliding seat 5, and the driving mechanism is used to drive the rotating shaft seat 4 to slide toward or away from the drum mouth 9 relative to the sliding seat 5.

[0025] In this embodiment, a sealing cover 2 is provided at one end of the drum mouth 9, a sealing sheet 1 is provided on the surface of the sealing cover 2, and the end of the sealing cover 2 away from the sealing sheet 1 is connected with a rotating shaft 3 and a rotating shaft seat 4 in sequence, and a sliding seat 5 is connected below the rotating shaft seat 4. A driving mechanism is provided to be drivingly connected with the sliding seat 5. The driving mechanism can drive the rotating shaft seat 4 to slide toward or away from the drum mouth 9 relative to the sliding seat 5, that is, to slide along the X-axis direction. When the driving mechanism drives the rotating shaft seat 4 to slide toward the drum mouth 9, the rotating shaft 3, the sealing cover 2 and the sealing sheet 1 are driven to slide together until the sealing sheet 1 is sealed on the drum mouth 9. The sealing cover 2 provides support for the sealing sheet 1, so that the sealing sheet 1 is tightly attached to the drum mouth 9. The sliding seat 5 provides support for the shaft seat 4 and the shaft 3 in the vertical direction, i.e., the Z-axis direction, to increase the overall structural stability of the device. The shaft 3 is rotatably connected to the shaft seat 4 and can rotate on its own. When the drum is working, the drum drives the sealing sheet 1, the sealing cover 2 and the shaft 3 to rotate relative to the shaft seat 4 along the axis of the shaft 3, i.e., around the X-axis. Since the sealing sheet 1 rotates with the drum, the drum mouth 9 can also be pressed during the rotation of the drum, so that the materials in the drum, such as coke, can be prevented from splashing and spreading outside the drum, thereby preventing environmental pollution. When the driving mechanism drives the shaft seat 4 to slide relative to the sliding seat 5 in a direction away from the drum mouth 9, the sealing sheet 1 is separated from the drum mouth 9, and the materials can be taken out or added.

[0026] Specifically, a connecting ring can be provided on the periphery of the drum mouth 9. When the sealing cover 2 and the sealing sheet 1 are pressed on the drum mouth, the connecting ring can be detachably connected to the sealing cover 2, such as bolted connection, to enhance the stability of the connection structure between the drum and the sealing cover, so that the drum can drive the sealing sheet 1, the sealing cover 2 and the rotating shaft 3 to rotate relative to the rotating shaft seat 4 along the axis of the rotating shaft 3. The sealing sheet 1 can be a rubber gasket, which can be adhesively connected to the sealing cover 2. The sealing cover 2 and the sealing sheet 1 are both circular, the size of the sealing sheet 1 is larger than the size of the drum mouth 9, and the size of the sealing cover 2 is greater than or equal to the size of the sealing sheet 1, so that the sealing cover 2 can support the sealing sheet 1.

[0027] Alternatively, if Figure 1As shown, the sealing cover 2 includes an annular connecting plate assembly 21, a connecting beam 22 and a fixed cylinder 23. The axis of the connecting plate assembly 21 is colinear with the axis of the fixed cylinder 23. The sealing sheet 1 is connected to the side of the connecting plate assembly 21 away from the fixed cylinder 23. One ends of multiple connecting beams 22 are evenly connected around the connecting plate assembly 21 toward one side of the fixed cylinder 23. The other ends of multiple connecting beams 22 are evenly connected to the peripheral outer surface of the fixed cylinder 23. The fixed cylinder 23 is sleeved on the rotating shaft 3.

[0028] In this embodiment, through the connecting plate assembly 21, the connecting beam 22 and the fixed cylinder 23, the connecting plate assembly 21 is annular and is coaxially arranged with the fixed cylinder 23. The connecting plate assembly 21 is located at one end close to the drum mouth 9, and the fixed cylinder 23 is located at one end away from the drum mouth 9. A plurality of connecting beams 22 are arranged between the connecting plate assembly 21 and the fixed cylinder 23, and one end of the plurality of connecting beams 22 is evenly connected to the edge of the end face of the connecting plate assembly 21 away from the drum mouth 9. The other ends of the plurality of connecting beams 22 are evenly connected to the outer surface of the peripheral side of the fixed cylinder 23, so that the connecting plate assembly 21, the connecting beam 22 and the fixed cylinder 23 form a hood-shaped structure as a whole, the sealing sheet 1 is connected to the end face of the connecting plate assembly 21 away from the fixed cylinder 23, the rotating shaft 3 is passed through the fixed cylinder 23 and connected to the fixed cylinder 23, and the plurality of connecting beams 22 transmit the supporting force between the fixed cylinder 23 and the connecting plate assembly 21, so that the connecting plate assembly 21 and the sealing sheet 1 are subjected to more uniform force.

[0029] Optionally, the connecting plate assembly 21 includes a plurality of annular connecting plates, which are arranged in sequence along the axial direction of the connecting plate assembly 21 and connected by bolts.

[0030] In this embodiment, a plurality of annular connecting plates are provided, the axes of the plurality of connecting plates are all collinear, and are arranged in sequence from close to the drum mouth 9 to away from the drum mouth 9. Bolt holes are opened at a plurality of corresponding positions on the plurality of connecting plates, and bolts are passed through the bolt holes to connect the plurality of connecting plates into a connecting plate assembly 21. When the connecting plate assembly 21 presses the sealing sheet 1 against the drum mouth 9, a plurality of connecting plates are provided to increase the structural strength of the sealing cover 2, and also play a buffering role, thereby reducing the influence of pressure on the connecting beam 22.

[0031] Specifically, a clearance groove for accommodating bolts is provided at one end of the sealing sheet 1 facing the connecting plate, so as to prevent the bolts from affecting the surface flatness of the sealing sheet 1 .

[0032] Alternatively, if Figure 1 As shown, the rotating shaft seat 4 includes a sliding plate 41 and a bearing seat 42 , the sliding plate 41 is slidably connected to the sliding seat 5 , the bearing seat 42 is connected to the sliding plate 41 , and the rotating shaft 3 is rotatably connected to the bearing seat 42 .

[0033] In this embodiment, a sliding plate 41 is provided, the sliding plate 41 extends in the plane where the X-axis and the Y-axis are located, the sliding plate 41 is slidably connected to the sliding seat 5, the sliding plate 41 can slide along the X-axis relative to the sliding seat 5, and a bearing seat 42 is provided on the upper surface of the sliding plate 41. The rotating shaft 3 can be inserted into the bearing seat 42, so that the rotating shaft 3 can rotate relative to the bearing seat 42.

[0034] Specifically, the bearing seat 42 is bolted to the sliding plate 41 , there are two bearing seats 42 , the two bearing seats 42 are arranged in sequence along the X-axis direction, and the rotating shaft 3 passes through the two bearing seats 42 , so that the rotating shaft 3 can rotate more stably.

[0035] Alternatively, if Figure 1 and Figure 2 As shown, a rectangular through hole is provided on the sliding plate 41, and slideways are provided on the opposite surfaces of the circumferential side of the sliding seat 5, and the slideways extend along the axial direction of the rotating shaft 3. The sliding plate 41 is sleeved on the sliding seat 5, and the length of the through hole along the axial direction of the rotating shaft 3 is greater than the axial size of the sliding seat 5 along the axial direction of the rotating shaft 3. The hole walls on both sides of the through hole extending along the axial direction of the rotating shaft 3 are respectively embedded in two of the slideways and are slidably connected with the slideways.

[0036] In this embodiment, a rectangular through hole is opened on the sliding plate 41 along the Z-axis direction, and the sliding seat 5 is a quadrangular prism structure. The sliding plate 41 is sleeved on the peripheral side of the sliding seat 5 through the through hole, and slideways are opened on the two side surfaces opposite to each other along the Y-axis direction of the sliding seat 5. The two slideways extend along the X-axis direction. The sliding plate 41 and the slideway are located at the same height in the Z-axis direction. The two hole walls of the through hole extending along the X-axis direction can be respectively embedded in the two slideways. The length of the through hole along the X-axis direction is greater than the size of the sliding seat 5 along the X-axis direction, so that the sliding plate 41 can slide along the slideway relative to the sliding seat 5 along the X-axis direction, so that the sliding plate 41 is slidably connected with the sliding seat 5.

[0037] Alternatively, if Figure 1 As shown, the driving mechanism includes an electric push rod 6 , and the telescopic end of the electric push rod 6 is connected to the sliding plate 41 .

[0038] In this embodiment, an electric push rod 6 is provided, and the telescopic end of the electric push rod 6 is connected to the sliding plate 41 , so that the telescopic end of the electric push rod 6 drives the sliding plate 41 to move the sealing sheet 1 toward or away from the drum mouth 9 .

[0039] Alternatively, if Figure 1 As shown, a push plate 81 is connected to the lower surface of the sliding plate 41 , and the telescopic end of the electric push rod 6 is connected to the push plate 81 .

[0040] In this embodiment, a push plate 81 is set on the lower surface of the sliding plate 41, and the push plate 81 is connected to the telescopic end of the electric push rod 6. The connection method can be a bolt connection. The push plate 81 provides a connection position for the electric push rod 6, which facilitates the electric push rod 6 to push the sliding plate 41 to slide.

[0041] Specifically, Figure 2 As shown, the push plate 81 can be arranged at the center of the lower surface of the sliding plate 41 facing the sealing sheet 1. The sliding seat 5 is provided with a through hole for the electric push rod 6 to pass through. The through hole extends along the X-axis direction. The electric push rod 6 passes through the through hole and is connected to the push plate 81, so that the thrust position of the sliding plate 41 is located directly below the rotating shaft 3, so that the sliding plate 41 is more stably stressed and slides more smoothly. Figure 1 As shown, a stop plate 84 is provided on one side of the sliding plate 41 extending downward toward the fixed end of the electric push rod 6. The telescopic end of the electric push rod 6 pushes the sliding plate 41 until the sealing sheet 1 is tightly attached to the drum mouth 9. The stop plate 84 abuts against the surface of the side of the sliding seat 5 away from the sealing sheet 1. The stop plate 84 shares the pressure for the sealing sheet 1 to prevent the sealing sheet 1 from being damaged.

[0042] Alternatively, if Figure 1 and Figure 2 As shown, the rotary drum leakage prevention device further includes a base 7 , and the electric push rod 6 and the sliding seat 5 are both connected to the base 7 .

[0043] In this embodiment, by setting the base 7, the fixed end of the electric push rod 6 and the sliding seat 5 are both set on the base 7, which is convenient for connecting the electric push rod 6 and the sliding seat 5 as a whole. By moving the base 7, the electric push rod 6 and the sliding seat 5 located on the base 7 can be moved together.

[0044] Specifically, the sliding seat 5 can be bolted to the base 7, and a pillow block can be provided on the portion where the fixed end of the electric push rod 6 is connected to the base 7. The pillow block is bolted to the base 7 to connect the fixed end of the electric push rod 6 to the base 7. A plurality of fixing plates 72 are also provided on the periphery of the base 7. Threaded holes are provided on the fixing plates 72 along the Z-axis direction, so that the base 7 can be installed on the installation surface by bolts, thereby providing positioning support for the rotary drum leakage prevention device.

[0045] Alternatively, if Figure 1 and Figure 2 As shown, a connecting seat 71 is further provided at one end of the upper surface of the base 7 away from the sealing cover 2 , and a fixed end of the electric push rod 6 is connected to the connecting seat 71 .

[0046] In this embodiment, by setting a connecting seat 71 at a position on the base 7 close to the fixed end of the electric push rod 6, the connecting plate can be bolted to the fixed end of the electric push rod 6, so that the connection between the electric push rod 6 and the base 7 is more stable, and the fixed end of the electric push rod 6 is fixed, which facilitates the extension and retraction of the telescopic end of the electric push rod 6.

[0047] Alternatively, if Figure 1 As shown, the rotary drum leakage prevention device further includes a cover body 83 , and the cover body 83 is disposed on the rotary shaft seat 4 , the sliding seat 5 and the electric push rod 6 .

[0048] In this embodiment, by setting a cover body 83 on the base 7, and the cover body 83 is set on the shaft seat 4, the sliding seat 5 and the electric push rod 6, the entire drum leakage prevention device can be protected to prevent dust from entering the cover body 83 and prevent external forces from affecting the normal operation of the drum leakage prevention device.

[0049] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A rotary drum leakage prevention device, characterized in that: The utility model comprises a sealing cover (2), a sealing sheet (1), a rotating shaft (3), a rotating shaft seat (4), a sliding seat (5) and a driving mechanism, wherein one end of the rotating shaft (3) is connected to the sealing cover (2), a side surface of the sealing cover (2) away from the rotating shaft (3) is connected to the sealing sheet (1), the sealing sheet (1) is used for sealingly cooperating with a drum mouth (9) of a rotating drum, the other end of the rotating shaft (3) is connected to the rotating shaft seat (4), the rotating shaft (3) is used for rotating along the axis of the rotating shaft (3), the rotating shaft seat (4) is slidably connected to the sliding seat (5), and the driving mechanism is used for driving the rotating shaft seat (4) to slide relative to the sliding seat (5) toward or away from the drum mouth (9).

2. The rotary drum leakage prevention device according to claim 1, characterized in that: The sealing cover (2) comprises an annular connecting plate assembly (21), a connecting beam (22) and a fixed cylinder (23); the axis of the connecting plate assembly (21) is colinear with the axis of the fixed cylinder (23); the sealing sheet (1) is connected to a side of the connecting plate assembly (21) away from the fixed cylinder (23); one end of a plurality of connecting beams (22) is evenly connected around the connecting plate assembly (21) toward a side of the fixed cylinder (23); the other ends of the plurality of connecting beams (22) are evenly connected to the peripheral outer surface of the fixed cylinder (23); and the fixed cylinder (23) is sleeved on the rotating shaft (3).

3. The rotary drum leakage prevention device according to claim 2, characterized in that: The connecting plate assembly (21) comprises a plurality of annular connecting plates, which are arranged in sequence along the axial direction of the connecting plate assembly (21) and connected by bolts.

4. The rotary drum leakage prevention device according to claim 1, characterized in that: The rotating shaft seat (4) comprises a sliding plate (41) and a bearing seat (42); the sliding plate (41) is slidably connected to the sliding seat (5); the bearing seat (42) is connected to the sliding plate (41); and the rotating shaft (3) is rotatably connected to the bearing seat (42).

5. The rotary drum leakage prevention device according to claim 4, characterized in that: The sliding plate (41) is provided with a rectangular through hole, and the surfaces opposite to the peripheral side of the sliding seat (5) are provided with slideways, and the slideways extend along the axial direction of the rotating shaft (3). The sliding plate (41) is sleeved on the sliding seat (5), and the length of the through hole along the axial direction of the rotating shaft (3) is greater than the size of the sliding seat (5) along the axial direction of the rotating shaft (3). The hole walls on both sides of the through hole extending along the axial direction of the rotating shaft (3) are respectively embedded in the two slideways and are slidably connected with the slideways.

6. The rotary drum leakage prevention device according to claim 4, characterized in that: The driving mechanism comprises an electric push rod (6), and the telescopic end of the electric push rod (6) is connected to the sliding plate (41).

7. The rotary drum leakage prevention device according to claim 6, characterized in that: The lower surface of the sliding plate (41) is connected to a pushing plate (81), and the telescopic end of the electric push rod (6) is connected to the pushing plate (81).

8. The rotary drum leakage prevention device according to claim 6, characterized in that: It also comprises a base (7), and the electric push rod (6) and the sliding seat (5) are both connected to the base (7).

9. The rotary drum leakage prevention device according to claim 8, characterized in that: A connecting seat (71) is also provided at one end of the upper surface of the base (7) away from the sealing cover (2), and a fixed end of the electric push rod (6) is connected to the connecting seat (71).

10. The rotary drum leakage prevention device according to claim 8, characterized in that: It also comprises a cover body (83), wherein the cover body (83) is arranged on the rotating shaft seat (4), the sliding seat (5) and the electric push rod (6).

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