A packing seal structure for piston engine storage

Abstract

The present invention discloses a packing seal structure for storage of a piston engine, which relates to the technical field of compressors and comprises: a first housing and a packing shell installed on the inner side of the first housing, wherein the inner sides of the first housing and the packing shell are rotatably connected to a power shaft, and the end of the packing shell is fixedly connected to a housing cover via a bolt assembly. The present invention arranges the cooperation of parts such as a driving motor, wherein the output end of the driving motor drives the second spur gear to drive the second threaded screw to rotate, thereby driving the slider to drive the shrinking ring to move downward. Since the inner side of the shrinking ring is conical, the sealing ring can be gradually compressed during the downward movement of the shrinking ring, so that the device can continue to form a sealing operation without replacing the sealing ring, and the device does not need to be disassembled, so that the device can be continuously sealed without the need for manual operation by the staff, thereby improving the overall practicality of the device.

Description

Technical Field

[0001] The invention relates to the technical field of compressors, in particular to a packing sealing structure for storage of a piston engine. Background Art

[0002] A piston compressor is a device that relies on the reciprocating motion of a piston to pressurize and transport gas. It is a positive displacement compressor, also known as a "reciprocating piston compressor" or "reciprocating compressor." Its basic structure includes components such as the body, crankshaft, connecting rod, piston group, valves, shaft seals, oil pump, energy regulating device and oil circulation system.

[0003] In piston compressors, when the product is transported for a long time or is left unused for a long time, it needs to be filled with nitrogen to prevent the parts from rusting and affecting its use. However, the shell cover and shaft parts of the existing piston compressor shell may cause nitrogen leakage, resulting in a shortened storage time or the need to regularly replenish nitrogen. This requires workers to frequently replenish nitrogen or replace sealing rubber, which is a cumbersome operation. To this end, we provide a packing seal structure for piston engine storage to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to solve the technical problem that nitrogen leakage may occur in the shell cover and shaft of the piston compressor shell, resulting in a shortened storage time or the need to regularly replenish nitrogen, which requires workers to frequently replenish nitrogen or replace sealing rubber, and the operation is relatively cumbersome.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A packing sealing structure for storage of a piston engine, comprising: a first shell and a packing shell installed on the inner side of the first shell, the inner sides of the first shell and the packing shell are rotatably connected to a power shaft, the end of the packing shell is fixedly connected to a shell cover by a bolt assembly, a sealing assistant for sealing between the power shaft and the shell cover is provided between the shell cover and the first shell, the sealing assistant comprises: a sealing seat provided at the top of the shell cover, a sealing ring provided on the inner side of the sealing seat, the sealing ring is fixedly connected to the outer wall of the power shaft, a pressure regulating part for regulating the pressure of the sealing ring is provided on the inner side of the sealing seat, the pressure regulating part comprises a shrinking ring provided on the inner side of the sealing seat, which is used to regulate the pressure of the sealing ring; a nitrogen supplementer, located on the inner side of the sealing seat, for supplementing nitrogen to the inside of the packing shell; a pressurized blowing mechanism, located at the bottom of the sealing ring, for blowing debris between the power shaft and the sealing ring.

[0006] As a further solution of the present invention: the sealing assistant also includes a second threaded rod fixedly connected to the top of the sealing seat, the outer wall of the second threaded rod is threadedly connected to a double-threaded sleeve, the inner side of the double-threaded sleeve is threadedly connected to the first threaded rod, and the first threaded rod is against the inner side of the first shell.

[0007] As a further solution of the present invention: a positive thread groove and a negative thread groove are provided on the inner side of the double-threaded sleeve, the threads of the outer walls of the first threaded rod and the second threaded rod are arranged oppositely, the second threaded rod is threadedly connected to the positive thread groove, and the first threaded rod is threadedly connected to the negative thread groove.

[0008] As a further solution of the present invention: the pressure regulating part also includes a sealing chamber opened inside the sealing seat, the inner side of the sealing chamber is slidably connected with a slider, one end of the slider penetrates into the inner side of the sealing seat and is fixedly connected to the shrinking ring, the inner side of the sealing seat is provided with a limiting groove communicating with the sealing chamber, the limiting groove matches the slider, the top of the sealing seat is fixedly connected to a support frame, the top of the support frame is equipped with a driving motor, the output end of the driving motor penetrates to the bottom of the support frame and is fixedly connected to a half gear, the inner side of the support frame is rotatably connected to a second threaded screw, and one end of the second threaded screw penetrates into the inner side of the sealing seat and is rotatably connected to the sealing seat, the outer wall of the second threaded screw is fixedly connected to a second spur gear meshing with the half gear, and the slider is threadedly connected to the outer wall of the second threaded screw.

[0009] As a further solution of the present invention: the nitrogen replenisher includes an annular piston plate slidably connected to the inner side of the sealed chamber, a micro electric push rod is installed inside the sealed chamber, and the output end of the micro electric push rod is fixedly connected to the annular piston plate, the air outlet of the sealing seat is fixedly connected to a connecting pipe, and one end of the connecting pipe is fixedly connected to a blowing shell, and the blowing shell is attached to the outer side of the power shaft, the air inlet of the blowing shell is communicated with the connecting pipe, and the bottom of the blowing shell is provided with a through hole communicating with the outside world.

[0010] As a further solution of the present invention: the boost blowing mechanism includes a sliding ring slidably connected to the inner side of the blowing shell, the top of the sliding ring is fixedly connected to a sealing rubber, and the sealing rubber is arranged below the air inlet of the blowing shell, the bottom of the sliding ring is fixedly connected to a first connecting rod, and one end of the first connecting rod extends to the outside of the through hole and is fixedly connected to a bottom support block, a first connecting spring is installed between the top of the bottom support block and the bottom of the blowing shell, and one side of the bottom support block is rotatably connected to a roller.

[0011] As a further solution of the present invention: the pressurized blowing mechanism also includes a trapezoidal piston rod slidably connected to the inner side of the sealing seat, and one end of the trapezoidal piston rod passes through the outside of the sealing seat and is located on one side of the roller, the outer wall of the trapezoidal piston rod is fixedly connected to a circular ring, a second connecting spring is installed between the circular ring and the sealing chamber, the top of the trapezoidal piston rod is fixedly connected to a second connecting rod, one side of the second connecting rod is fixedly connected to a spherical rod, and the inner side of the sealing seat is provided with a toggle assembly for toggling the spherical rod for movement.

[0012] As a further solution of the present invention: the toggle assembly includes a first threaded screw rotatably connected to the inner side of the support frame, the outer wall of the first threaded screw is fixedly connected to a first spur gear meshing with the half gear, the outer wall of the first threaded screw is threadedly connected to a rectangular piston rod, and the inner sides of the slider and the annular piston plate are provided with rectangular grooves matching the rectangular piston rod, the bottom of the rectangular piston rod is fixedly connected to a hanging rod, and the inner side of the hanging rod is fixedly connected to three arch blocks, and the three arch blocks are equidistantly distributed on the inner side of the hanging rod.

[0013] As a further solution of the present invention: a through groove having a diameter larger than that of the connecting pipe is opened on the inner side of the trapezoidal piston rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By arranging the cooperation of the driving motor and other parts, the output end of the driving motor drives the second spur gear to drive the second threaded screw to rotate, thereby driving the slider to drive the shrinking ring to move downward. Since the inner side of the shrinking ring is tapered, the sealing ring can be gradually compressed during the downward movement of the shrinking ring, so that the device can continue to form a sealing operation without replacing the sealing ring. At the same time, the device does not need to be disassembled, so that the device can continuously seal without manual operation by the staff, thereby improving the overall practicality of the device;

[0016] 2. By arranging the cooperation between the nitrogen replenisher and the pressurized blowing mechanism, the sealing rubber can replenish the nitrogen stored in the sealing chamber into the interior of the blowing shell through the connecting pipe after switching to blocking the air outlet above the blowing shell, and discharge it into the interior of the packing shell through the through hole to replenish the nitrogen lacking in the packing shell. When the piston compressor is in operation and a leak occurs, the sealing rubber is located below the air inlet of the blowing shell, so that the nitrogen entering the blowing shell can be blown into the gap between the sealing ring and the power shaft through the air outlet at the top of the blowing shell, blowing away the debris between the sealing ring and the power shaft, thereby reducing the friction between the sealing ring and the power shaft during the subsequent pressurized sealing, thereby reducing the wear of the sealing ring during use, and thereby increasing the service life of the sealing ring again. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 is a cross-sectional view of a first housing of the present invention;

[0019] Figure 3 It is a cross-sectional view of a double-threaded sleeve of the present invention;

[0020] Figure 4 It is a partial cross-sectional view of the power shaft and the sealing seat of the present invention;

[0021] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0022] Figure 6 is a cross-sectional view of the sealing seat of the present invention;

[0023] Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle;

[0024] Figure 8 It is a schematic diagram of the local structure of the blowing shell of the present invention;

[0025] Figure 9 It is a schematic diagram of the driving of the shrinking ring of the present invention.

[0026] In the figure: 1. first shell; 2. filler shell; 3. power shaft; 4. sealing seat; 5. double-threaded sleeve; 6. first threaded rod; 7. second threaded rod; 8. shell cover; 9. sealing ring; 10. shrinking ring; 11. blowing shell; 12. connecting pipe; 13. trapezoidal piston rod; 14. sealing rubber; 15. first connecting rod; 16. first connecting spring; 17. roller; 18. bottom block; 19. support frame; 20. drive motor; 21. first threaded screw rod; 22. second threaded screw rod; 23. rectangular piston rod; 24. micro electric push rod; 25. sealing chamber; 26. second connecting spring; 27. circular ring; 28. second connecting rod; 29. ​​spherical rod; 30. suspension rod; 31. arch block; 32. slider; 33. sliding ring; 34. through hole; 35. annular piston plate; 36. half gear; 37. first spur gear; 38. second spur gear. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or connected in one piece; they can be mechanically connected or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes an embodiment of the present invention based on its overall structure.

[0029] See also Figures 1 to 9, This embodiment provides a packing sealing structure for storage of a piston engine, comprising: a first shell 1 and a packing shell 2 installed on the inner side of the first shell 1, the inner sides of the first shell 1 and the packing shell 2 are rotatably connected to a power shaft 3, the end of the packing shell 2 is fixedly connected to a shell cover 8 by a bolt assembly, and a sealing auxiliary device for sealing between the power shaft 3 and the shell cover 8 is provided between the shell cover 8 and the first shell 1, the sealing auxiliary device comprises a sealing seat 4 arranged at the top of the shell cover 8, a sealing ring 9 is arranged on the inner side of the sealing seat 4, and the sealing ring 9 is fixedly connected to the outer wall of the power shaft 3, the sealing auxiliary device also comprises a second threaded rod 7 fixedly connected to the top of the sealing seat 4, the outer wall of the second threaded rod 7 is threadedly connected to a double-threaded sleeve 5, the inner side of the double-threaded sleeve 5 is screwed to a first threaded rod 6, and the first threaded rod 6 is against the inner side of the first shell 1, the inner side of the double-threaded sleeve 5 is provided with a positive thread groove and a reverse thread groove, the threads of the outer walls of the first threaded rod 6 and the second threaded rod 7 are arranged in opposite directions, the second threaded rod 7 is threadedly connected to the positive thread groove, and the first threaded rod 6 is threadedly connected to the reverse thread groove;

[0030] First, the sealing seat 4 can be installed by pressing the sealing seat 4 against the top of the shell cover 8. A sealing rubber ring is installed between the inner side of the sealing seat 4 and the shell cover 8 to seal the gap between the two. Then, the double-threaded sleeve 5 can be rotated as needed to adjust the distance between the first threaded rod 6 and the first shell 1, so that the first threaded rod 6 can abut against the inner side of the first shell 1, thereby fixing the sealing seat 4 and pressing it against the top of the shell cover 8, thereby realizing convenient installation operation of the device.

[0031] See also Figures 4 to 9 , a pressure regulating member for regulating the pressure of the sealing ring 9 is provided on the inner side of the sealing seat 4, and the pressure regulating member includes a shrinking ring 10 provided on the inner side of the sealing seat 4 for regulating the pressure of the sealing ring 9. The pressure regulating member also includes a sealing chamber 25 opened inside the sealing seat 4, and a sealing chamber 25 is opened inside the sealing seat 4. The inner side of the sealing chamber 25 is slidably connected with a slider 32, and one end of the slider 32 passes through the inner side of the sealing seat 4 and is fixedly connected to the shrinking ring 10. A limiting groove communicating with the sealing chamber 25 is opened on the inner side of the sealing seat 4, and the limiting groove matches the slider 32. The top of the sealing seat 4 is fixedly connected to the support frame 19, and the top of the support frame 19 is equipped with a drive motor 20. The output end of the drive motor 20 passes through the bottom of the support frame 19 and is fixedly connected to the half gear 36. The inner side of the support frame 19 is rotatably connected to the second threaded screw 22, and one end of the second threaded screw 22 passes through the inner side of the sealing seat 4 and is rotatably connected to the sealing seat 4. The outer wall of the second threaded screw 22 is fixedly connected to a second spur gear 38 that meshes with the half gear 36, and the slider 32 is threadedly connected to the outer wall of the second threaded screw 22;

[0032] First, a micro piezoresistive sensor is installed inside the filler shell 2 to monitor the nitrogen pressure inside the filler shell 2 in real time. When the micro piezoresistive sensor detects that the air pressure inside the filler shell 2 decreases, the sealing ring 9 leaks due to elastic fatigue during long-term use. At this time, the drive motor 20 is started intermittently, and the output end of the drive motor 20 drives the second spur gear 38 to drive the second threaded screw 22 to rotate, thereby driving the slider 32 to drive the shrinking ring 10 to move downward. Since the inner side of the shrinking ring 10 is tapered, the shrinking ring 10 can gradually tighten the sealing ring 9 during the downward movement, so that the device can continue to form a sealing operation without replacing the sealing ring 9. At the same time, the device does not need to be disassembled, so that the device can be continuously sealed, thereby improving the overall practicality of the device.

[0033] The above technical solution can be implemented regardless of whether the piston compressor is in operation or has been in transportation for a long time or has been idle for a long time, thereby improving the overall applicability of the device.

[0034] See also Figures 1 to 9 , a nitrogen replenisher is located on the inner side of the sealing seat 4 and is used to replenish nitrogen inside the filler shell 2. The nitrogen replenisher includes an annular piston plate 35 slidably connected to the inner side of the sealing chamber 25. A micro-electric push rod 24 is installed inside the sealing chamber 25, and the output end of the micro-electric push rod 24 is fixedly connected to the annular piston plate 35. A connecting pipe 12 is fixedly connected to the air outlet of the sealing seat 4, and one end of the connecting pipe 12 is fixedly connected to the blowing shell 11, and the blowing shell 11 is attached to the outer side of the power shaft 3. The air inlet of the blowing shell 11 is communicated with the connecting pipe 12, and a through hole 34 communicating with the outside is opened at the bottom of the blowing shell 11;

[0035] The boost blowing mechanism is located at the bottom of the sealing ring 9 and is used to blow the debris between the power shaft 3 and the sealing ring 9. The boost blowing mechanism includes a sliding ring 33 that is slidably connected to the inner side of the blowing shell 11. The top of the sliding ring 33 is fixedly connected to a sealing rubber 14, and the sealing rubber 14 is arranged below the air inlet of the blowing shell 11. The bottom of the sliding ring 33 is fixedly connected to a first connecting rod 15, and one end of the first connecting rod 15 extends to the outside of the through hole 34 and is fixedly connected to a bottom support block 18. A first connecting spring 16 is installed between the top of the bottom support block 18 and the bottom of the blowing shell 11. One side of the bottom support block 18 is rotatably connected to a roller 17. The boost blowing mechanism also includes a trapezoidal piston rod 13 that is slidably connected to the inner side of the sealing seat 4, and one end of the trapezoidal piston rod 13 passes through the outside of the sealing seat 4 and is located on one side of the roller 17. The outer wall of the trapezoidal piston rod 13 is fixedly connected to a ring 27, and the ring 27 is fixedly connected to the sealing A second connecting spring 26 is installed between the bins 25, and the top of the trapezoidal piston rod 13 is fixedly connected to a second connecting rod 28, and one side of the second connecting rod 28 is fixedly connected to a spherical rod 29. A toggle assembly for toggling the spherical rod 29 to move is provided on the inner side of the sealing seat 4, and the toggle assembly includes a first threaded screw 21 rotatably connected to the inner side of the support frame 19, the outer wall of the first threaded screw 21 is fixedly connected to a first spur gear 37 meshing with the half gear 36, the outer wall of the first threaded screw 21 is threadedly connected to the rectangular piston rod 23, and the inner sides of the slider 32 and the annular piston plate 35 are provided with rectangular grooves matching the rectangular piston rod 23, the bottom of the rectangular piston rod 23 is fixedly connected to a hanging rod 30, and the inner side of the hanging rod 30 is fixedly connected to three arch blocks 31, and the three arch blocks 31 are equidistantly distributed on the inner side of the hanging rod 30, and the inner side of the trapezoidal piston rod 13 is provided with a through groove having a diameter larger than that of the connecting pipe 12;

[0036] The second threaded screw 22 is only in contact with the annular piston plate 35 but not connected. When the micro piezoresistive sensor detects that the air pressure inside the filler shell 2 decreases, the drive motor 20 starts and stops intermittently under the control of the PLC controller. When the drive motor 20 starts, the half gear 36 first engages with the first spur gear 37, thereby driving the first spur gear 37 to drive the first threaded screw 21 to rotate, and then drives the rectangular piston rod 23 to drive the arch block 31 to move downward through the suspension rod 30. When the lowest point of the arch block 31 contacts the spherical rod 29, it pushes the spherical rod 29 to drive the trapezoidal piston rod 13 to move toward the roller 17, so that the roller 17 pushes the sliding ring along the inclined surface of one end of the trapezoidal piston rod 13. 33 drives the sealing rubber 14 to move upward. When the spherical rod 29 contacts the highest point of the arch block 31, the driving motor 20 stops running. At this time, the sealing rubber 14 blocks the air outlet above the blowing shell 11. At the same time, the sliding ring 33 is located above the air inlet of the blowing shell 11. Then the micro electric push rod 24 can be started. The output end of the micro electric push rod 24 drives the annular piston plate 35 to move downward, so that the nitrogen stored in the sealing chamber 25 can be replenished into the blowing shell 11 through the connecting pipe 12 and discharged into the filling shell 2 through the through hole 34, thereby replenishing the nitrogen lacking in the filling shell 2. There is no need for manual replenishment operation by the staff, thereby improving the overall practicality of the device.

[0037] The above device is implemented when the piston compressor has been in transportation for a long time or has been laid up for a long time without operation;

[0038] When the piston compressor is in operation and a leak occurs, the sealing rubber 14 is located below the air inlet of the blowing shell 11 to prevent the gas inside the blowing shell 11 from entering the through hole 34. Under the control of the PLC controller, the micro electric push rod 24 is first started, so that the annular piston plate 35 can first supply the gas inside the sealing chamber 25 into the blowing shell 11, and blown into the gap between the sealing ring 9 and the power shaft 3 through the air outlet at the top of the blowing shell 11. Since the power shaft 3 rotates all the time during the operation of the equipment, debris is easily generated between the power shaft 3 and the sealing ring 9 during long-term use. The nitrogen blown out from the inside of the blowing shell 11 can blow away the debris between the sealing ring 9 and the power shaft 3, thereby reducing the friction between the sealing ring 9 and the power shaft 3 for subsequent pressurized sealing, thereby reducing the wear of the sealing ring 9 during use, and thereby increasing the service life of the sealing ring 9 when it is re-sealed;

[0039] When the spherical rod 29 moves to the highest point of the arch block 31, the half gear 36 has not yet separated from the first spur gear 37. After the annular piston plate 35 moves a certain distance, the micro electric push rod 24 stops running, so that the blowing shell 11 is aligned with the gap between the sealing ring 9 and the power shaft 3 for a period of time, and the driving motor 20 is started again to continue to drive the rectangular piston rod 23 to move downward. When the half gear 36 is separated from the first spur gear 37, the spherical rod 29 moves from the highest point on one side of the arch block 31 to the lowest point and separates from the arch block 31, thereby making the half gear 36 contact with the second spur gear 38 and drive the second spur gear 38 to rotate, thereby performing a pressure adjustment operation on the sealing ring 9.

[0040] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A packing seal structure for piston engine storage, characterized in that: include: A first shell (1) and a filler shell (2) mounted on the inner side of the first shell (1); a power shaft (3) is rotatably connected to the inner sides of the first shell (1) and the filler shell (2); an end of the filler shell (2) is fixedly connected to a shell cover (8) via a bolt assembly; a sealing auxiliary device for sealing between the power shaft (3) and the shell cover (8) is provided between the shell cover (8) and the first shell (1); the sealing auxiliary device comprises a sealing seat (4) provided on the top of the shell cover (8); a sealing ring (9) is provided on the inner side of the sealing seat (4); the sealing ring (9) is fixedly connected to the outer wall of the power shaft (3); a pressure regulating member is provided on the inner side of the sealing seat (4); the pressure regulating member comprises a shrinking ring (10) provided on the inner side of the sealing seat (4); the shrinking ring (10) is used to perform a pressure regulating operation on the sealing ring (9); A nitrogen replenisher, located on the inner side of the sealing seat (4), for replenishing nitrogen inside the filler shell (2); A pressurized air blowing mechanism, located at the bottom of the sealing ring (9), for blowing away debris between the power shaft (3) and the sealing ring (9); The pressure regulating member further comprises a sealing chamber (25) provided inside the sealing seat (4), a slider (32) is slidably connected to the inner side of the sealing chamber (25), one end of the slider (32) penetrates the inner side of the sealing seat (4) and is fixedly connected to the shrinking ring (10), a limiting groove communicating with the sealing chamber (25) is provided on the inner side of the sealing seat (4), the limiting groove matches the slider (32), the top of the sealing seat (4) is fixedly connected to a support frame (19), and a driving motor (20) is installed on the top of the support frame (19). ), the output end of the driving motor (20) passes through the lower side of the support frame (19) and is fixedly connected to a half gear (36), the inner side of the support frame (19) is rotatably connected to a second threaded screw (22), and one end of the second threaded screw (22) passes through the inner side of the sealing seat (4) and is rotatably connected to the sealing seat (4), the outer wall of the second threaded screw (22) is fixedly connected to a second spur gear (38) meshing with the half gear (36), and the slider (32) is threadedly connected to the outer wall of the second threaded screw (22); The nitrogen replenisher comprises an annular piston plate (35) slidably connected to the inner side of the sealing chamber (25); a micro electric push rod (24) is installed inside the sealing chamber (25); and the output end of the micro electric push rod (24) is fixedly connected to the annular piston plate (35); a connecting pipe (12) is fixedly connected to the air outlet of the sealing seat (4); and one end of the connecting pipe (12) is fixedly connected to a blowing shell (11); and the blowing shell (11) is attached to the outer side of the power shaft (3); an air inlet of the blowing shell (11) is communicated with the connecting pipe (12); and a through hole (34) communicating with the outside is opened at the bottom of the blowing shell (11); The pressurized air blowing mechanism comprises a sliding ring (33) slidably connected to the inner side of the air blowing shell (11); a sealing rubber (14) is fixedly connected to the top of the sliding ring (33), and the sealing rubber (14) is arranged below the air inlet of the air blowing shell (11); a first connecting rod (15) is fixedly connected to the bottom of the sliding ring (33); one end of the first connecting rod (15) extends to the outside of the through hole (34) and is fixedly connected to a bottom supporting block (18); a first connecting spring (16) is installed between the top of the bottom supporting block (18) and the bottom of the air blowing shell (11); and a roller (17) is rotatably connected to one side of the bottom supporting block (18).

2. A packing seal structure for storage of a piston engine according to claim 1, characterized in that: The sealing auxiliary device further comprises a second threaded rod (7) fixedly connected to the top of the sealing seat (4); the outer wall of the second threaded rod (7) is threadedly connected to a double-threaded sleeve (5); the inner side of the double-threaded sleeve (5) is threadedly connected to the first threaded rod (6), and the first threaded rod (6) abuts against the inner side of the first housing (1).

3. A packing seal structure for storage of a piston engine according to claim 2, characterized in that: The inner side of the double-threaded sleeve (5) is provided with a positive thread groove and a negative thread groove, the threads of the outer walls of the first threaded rod (6) and the second threaded rod (7) are arranged in opposite directions, the second threaded rod (7) is threadedly connected to the positive thread groove, and the first threaded rod (6) is threadedly connected to the negative thread groove.

4. A packing seal structure for storage of a piston engine according to claim 1, characterized in that: The pressurized air blowing mechanism further comprises a trapezoidal piston rod (13) slidably connected to the inner side of the sealing seat (4), and one end of the trapezoidal piston rod (13) passes through the outside of the sealing seat (4) and is located on one side of the roller (17), the outer wall of the trapezoidal piston rod (13) is fixedly connected with a circular ring (27), a second connecting spring (26) is installed between the circular ring (27) and the sealing chamber (25), the top of the trapezoidal piston rod (13) is fixedly connected with a second connecting rod (28), one side of the second connecting rod (28) is fixedly connected with a spherical rod (29), and the inner side of the sealing seat (4) is provided with a toggle assembly for toggling the spherical rod (29) for moving.

5. A packing seal structure for storage of a piston engine according to claim 4, characterized in that: The toggle assembly includes a first threaded screw (21) rotatably connected to the inner side of the support frame (19), the outer wall of the first threaded screw (21) is fixedly connected to a first spur gear (37) meshing with the half gear (36), the outer wall of the first threaded screw (21) is threadedly connected to a rectangular piston rod (23), and the inner sides of the slider (32) and the annular piston plate (35) are provided with rectangular grooves matching the rectangular piston rod (23), the bottom of the rectangular piston rod (23) is fixedly connected to a hanging rod (30), and the inner side of the hanging rod (30) is fixedly connected to three arch blocks (31), and the three arch blocks (31) are equidistantly distributed on the inner side of the hanging rod (30).

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