A device for preparing, processing and preserving engine combustion chamber coating

The device addresses oxygen exposure during filling by using a bottom-filling mechanism with inert gas protection and sealing to stabilize the engine combustion chamber coating, ensuring material integrity during storage.

CN118683797BActive Publication Date: 2024-12-27CHINA MACHINE KAIBO SURFACE TECHNOLOGY (JIANGSU) CO LTD
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Patent Information

Application Number
CN202411161466.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-23
Publication Date
2024-12-27
Estimated Expiration
2044-08-23

AI Technical Summary

Technical Problem

Existing engine combustion chamber coating preparation devices expose the viscous material to oxygen during the filling process, leading to instability and potential deterioration during long-term storage.

Method used

A device comprising a support seat, filling barrel, preservation tank, and auxiliary mechanisms to minimize oxygen exposure by filling from the bottom, using inert gas protection and sealing to prevent air ingress, and clamping for stability.

Benefits of technology

Ensures the stability of the engine combustion chamber coating during storage by reducing oxygen contact, thereby maintaining material performance and improving storage integrity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of engine combustion chamber coating preparation, and proposes an engine combustion chamber coating preparation, processing and preservation device, comprising: a support seat and a bracket fixedly connected to the top of the support seat, a filling barrel is installed on the inner side of the bracket, the output end of the filling barrel is connected to a first hose, the bottom of the first hose is fixedly connected to a first connecting ring, a third hose is installed at the discharge port of the first connecting ring, and a filling head is installed at the discharge port of the third hose. The present invention sets an auxiliary preservation mechanism, so that the viscous material inside the filling barrel can flow in from the bottom end of the preservation tank and spread upward, avoiding the viscous material after the engine combustion chamber coating is prepared from contacting with air in large quantities during the filling process, thereby avoiding a large amount of oxygen inside the filled material, and thus ensuring the stability of the raw materials during storage.
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Description

Technical Field

[0001] The invention relates to the technical field of engine combustion chamber coating preparation, and in particular to a device for preparing, processing and preserving engine combustion chamber coating. Background Art

[0002] Engine combustion chamber coating is an important part of high-temperature protective coating technology for aviation engines. It is mainly used for high-temperature components such as combustion chamber lining to provide necessary anti-oxidation, heat insulation, corrosion resistance and other protective functions. After the raw materials for engine combustion chamber coating are mixed and prepared into a viscous material, they need to be collected using a special storage device for subsequent transportation.

[0003] The raw materials for existing engine combustion chamber coatings are usually poured directly from the top of the storage tank into the interior of the storage tank after being mixed and prepared into a viscous material. During this process, since the interior of the storage tank itself contains oxygen, the viscous material is easily trapped inside in the form of bubbles during the pouring process, making it easy for the oxygen to affect the stability of the product during the long-term storage of the viscous material, and even deteriorate in severe cases. For this reason, we provide an engine combustion chamber coating preparation, processing and storage device to solve the above problems. Summary of the invention

[0004] The present invention proposes a device for preparing, processing and preserving an engine combustion chamber coating, which solves the problem in the related art that the viscous material after the engine combustion chamber coating is prepared is easily exposed to oxygen during the filling process, thereby carrying a large amount of oxygen during the retention process, thereby reducing the performance of the material after long-term storage.

[0005] The technical solution of the present invention is as follows: a coating preparation, processing and preservation device for an engine combustion chamber, comprising: a support seat and a bracket fixedly connected to the top of the support seat, a filling barrel is installed on the inner side of the bracket, an output end of the filling barrel is connected to a first hose, a first connecting ring is fixedly connected to the bottom of the first hose, a third hose is installed at the discharge port of the first connecting ring, a filling head is installed at the discharge port of the third hose, a second connecting ring is fixedly connected to the outer wall of the filling head, and a discharge pipe is fixedly connected to the discharge port of the filling head; a preservation tank, the preservation tank is placed on the top of the support seat, and a preservation cover is installed on the top of the preservation tank; an auxiliary preservation mechanism is located at the end of the filling head and the inner side of the preservation tank, and is used to reduce bubbles in the viscous material entering the preservation tank; an exhaust assistant is located at the end of the preservation cover, and is used to reduce the contact between the viscous material entering the preservation tank and oxygen; a clamping auxiliary is located on both sides of the preservation tank, and is used to calibrate and reinforce the preservation tank.

[0006] As a further solution of the present invention: the auxiliary preservation mechanism includes a first hydraulic cylinder installed at the bottom of the filling barrel, the output end of the first hydraulic cylinder is fixedly connected to the first connecting ring, the top of the first connecting ring is installed with a second hydraulic cylinder, the output end of the second hydraulic cylinder passes through the bottom of the first connecting ring and is fixedly connected to the second connecting ring, the top of the preservation cover is fixedly connected with a connecting sleeve, the inner side of the connecting sleeve is fixedly connected with a fixing ring, the top of the fixing ring is provided with a piston block, the through hole of the piston block is provided with a shielding protection component for shielding, and the inner side of the piston block is provided with a locking component for fixing the piston block to the connecting sleeve.

[0007] As a further solution of the present invention: the locking assembly includes two first pins slidably connected to the inner side of the piston block, one end of the first pin is fixedly connected to the first connecting spring, one end of the first connecting spring is fixedly connected to the piston block, a first fixing hole matching the first pin is provided on the inner side of the connecting sleeve, an inclined groove is provided on the inner side of the first pin, and an arc-shaped push rod is fixedly connected to the bottom of the filling head.

[0008] As a further solution of the present invention: the locking assembly also includes a second pin slidably connected to the inner side of the piston block, one end of the second pin is fixedly connected to a second connecting spring, one end of the second connecting spring is fixedly connected to the piston block, and a second fixing hole matching the second pin is opened on the inner side of the storage cover.

[0009] As a further solution of the present invention: the shielding and protection assembly includes an auxiliary seat fixedly connected to the bottom of the piston block, a second sealing baffle is provided on the inner side of the auxiliary seat, and the outer walls on both sides of the second sealing baffle are fixedly connected with a second rotating shaft, one end of the second rotating shaft passes through the inner side of the auxiliary seat and is rotatably connected to the auxiliary seat, and a second torsion spring is installed between the second rotating shaft and the auxiliary seat.

[0010] As a further solution of the present invention: the clamping auxiliary part includes connecting blocks fixedly connected to both sides of the first connecting ring, the bottom of the connecting block is fixedly connected to a connecting rod, one end of the connecting rod is fixedly connected to a trapezoidal block, the inner side of the bracket is fixedly connected to a support plate, the inner side of the support plate is slidably connected to a sliding rod, one end of the sliding rod is fixedly connected to a clamping ring, an auxiliary spring is installed between the clamping ring and the support plate, and the other end of the sliding rod passes through the inner side of the support plate and is rotatably connected to a roller.

[0011] As a further solution of the present invention: the exhaust auxiliary device includes an inert gas storage box fixedly connected to one side of the bracket, the output end of the inert gas storage box is connected to a second hose, one end of the second hose is fixedly connected to an air duct, one end of the air duct is fixedly connected to a first solenoid valve, one end of the first solenoid valve is fixedly connected to a bending pipe, a second solenoid valve is installed at the air outlet of the bending pipe, and a through hole is opened on the top of the storage cover to penetrate to the interior.

[0012] As a further solution of the present invention: the exhaust assistant also includes a fixing seat fixedly connected to the top of the inner side of the storage cover, a first sealing baffle is arranged on the inner side of the fixing seat, and a first rotating shaft is fixedly connected to the outer walls on both sides of the first sealing baffle, and one end of the first rotating shaft passes through the outside of the fixing seat and is rotatably connected to the fixing seat, and a first torsion spring is installed between the first rotating shaft and the fixing seat.

[0013] As a further solution of the present invention: the top of the through hole is set as a cone, and the outer wall of the bent tube is fixedly connected with a sealing rubber.

[0014] The working principle and beneficial effects of the present invention are:

[0015] 1. By setting up an auxiliary preservation mechanism, when the preservation tank needs to be filled, the first hydraulic cylinder can be started, and the output end of the first hydraulic cylinder drives the first connecting ring to drive the filling head to move downward. When the first connecting ring stops at the specified position, the second hydraulic cylinder is started, and the output end of the second hydraulic cylinder drives the second connecting ring to drive the filling head to move downward and insert into the interior of the connecting sleeve. Then, when the discharge pipe contacts the second sealing baffle, the second sealing baffle is pushed to rotate, thereby opening the bottom of the piston block, and then the filling head is controlled by the PLC controller for filling, so that the viscous material inside the filling barrel can start to flow in from the bottom of the preservation tank and spread upward, avoiding the viscous material after the engine combustion chamber coating is prepared. Contact with a large amount of air during the filling process, thereby avoiding a large amount of oxygen in the filled material, thereby ensuring the stability of the raw materials during storage;

[0016] 2. By arranging the cooperation of the sealing rubber and other parts, when the first connecting ring moves downward, the connecting block drives the bending tube to move downward, so that the bending tube is inserted into the through hole to push open the first sealing baffle and seal it through the sealing rubber. Then, before filling, the second solenoid valve is opened. At this time, the first solenoid valve is in a closed state. Then, when the material inside the storage tank is poured from the bottom, oxygen can be squeezed out from the inside of the second solenoid valve, thereby avoiding a large amount of oxygen inside the storage tank after filling;

[0017] When the filling head can close the second solenoid valve and open the first solenoid valve before resetting, so that the filling head drives the piston block to move upward, the inert gas inside the inert gas storage box can enter the storage tank and be located on the top of the material, thereby protecting the material during storage, thereby improving the overall practicality of the device;

[0018] 3. By arranging the coordination of the arc-shaped ejector rod and other parts, when the filling head is inserted into the interior of the connecting sleeve, the arc-shaped ejector rod is driven to move. When the arc-shaped ejector rod is inserted into the inner side of the first latch and contacts the inner inclined surface of the inclined groove, the first latch is pushed to retract to the inner side of the piston block, so that the piston block is no longer fixed to the connecting sleeve. At the same time, the piston block is clamped on the outer wall of the arc-shaped ejector rod by the first latch under the extrusion of the first connecting spring, so that after the filling head is reset to be flush with the top of the storage cover, the second latch is aligned with the second fixing hole, so that the second latch is inserted into the interior of the second fixing hole under the action of the second connecting spring, thereby fixing the piston block to the storage cover, so that after the storage tank is filled, the discharge pipe can be promptly closed by the second sealing baffle after being moved out from the inner side of the storage cover, thereby preventing the outside oxygen from entering the interior of the storage tank during the shaking process after the filling;

[0019] 4. By setting a clamping auxiliary part, when the first connecting ring moves downward, it drives the two trapezoidal blocks to move downward. When the inner inclined surfaces of the trapezoidal blocks contact with a roller respectively, the sliding rod is pushed to drive the clamping ring to move toward the outer wall of the preservation tank. When the trapezoidal block stops moving, it is clamped on the outer wall of the preservation tank by the two clamping rings, thereby improving the stability of the preservation tank during the filling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 A cross-sectional view of the present invention;

[0023] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 For the present invention Figure 2 Enlarged view of point B in the middle;

[0025] Figure 5 It is a schematic diagram of the piston block after movement of the present invention;

[0026] Figure 6 It is a schematic diagram of the plug-in connection of the bent tube of the present invention;

[0027] Figure 7 This is a schematic diagram of opening the second sealing baffle of the present invention;

[0028] Figure 8 For the present invention Figure 7 Enlarged view of point C in the middle.

[0029] In the figure: 1, support seat; 2, bracket; 3, filling barrel; 4, first hose; 5, first connecting ring; 6, first hydraulic cylinder; 7, second hydraulic cylinder; 8, connecting block; 9, inert gas storage box; 10, second hose; 11, air guide tube; 12, connecting rod; 13, first solenoid valve; 14, second solenoid valve; 15, bending pipe; 16, preservation tank; 17, clamping ring; 18, preservation cover; 19, second connecting ring; 20, connecting sleeve; 21, filling head; 22, supporting plate; 23, trapezoidal block; 24, sliding rod; 25, auxiliary spring; 26. Roller; 27. Sealing rubber; 28. First sealing baffle; 29. ​​Fixed seat; 30. Discharge pipe; 31. Fixed ring; 32. Second sealing baffle; 33. Piston block; 34. First fixing hole; 35. First latch; 36. Arc-shaped push rod; 37. First connecting spring; 38. Second latch; 39. Second connecting spring; 40. Bevel groove; 41. Second fixing hole; 42. Through hole; 43. First rotating shaft; 44. First torsion spring; 45. Auxiliary seat; 46. Second rotating shaft; 47. Second torsion spring; 48. Third hose. DETAILED DESCRIPTION

[0030] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figures 1 to 8The present embodiment provides a coating preparation, processing and preservation device for an engine combustion chamber, comprising: a support seat 1 and a support 2 fixedly connected to the top of the support seat 1, a filling barrel 3 is installed on the inner side of the support 2, the output end of the filling barrel 3 is connected to a first hose 4, a first connecting ring 5 is fixedly connected to the bottom of the first hose 4, a third hose 48 is installed at the discharge port of the first connecting ring 5, a filling head 21 is installed at the discharge port of the third hose 48, a second connecting ring 19 is fixedly connected to the outer wall of the filling head 21, and a discharge pipe 30 is fixedly connected to the discharge port of the filling head 21; a preservation tank 16, the preservation tank 16 is placed on the top of the support seat 1, and a preservation cover 18 is installed on the top of the preservation tank 16; an auxiliary preservation mechanism, located at the end of the filling head 21 and the inner side of the preservation tank 16, for reducing bubbles left in the viscous material entering the preservation tank 16, the auxiliary preservation mechanism includes a cap 18 installed at the bottom of the filling barrel 3 The first hydraulic cylinder 6, the output end of the first hydraulic cylinder 6 is fixedly connected to the first connecting ring 5, the second hydraulic cylinder 7 is installed on the top of the first connecting ring 5, the output end of the second hydraulic cylinder 7 penetrates to the bottom of the first connecting ring 5 and is fixedly connected to the second connecting ring 19, the top of the preservation cover 18 is fixedly connected to the connecting sleeve 20, the inner side of the connecting sleeve 20 is fixedly connected to the fixing ring 31, the top of the fixing ring 31 is provided with a piston block 33, the through hole of the piston block 33 is provided with a shielding protection component for shielding, the shielding protection component includes an auxiliary seat 45 fixedly connected to the bottom of the piston block 33, the inner side of the auxiliary seat 45 is provided with a second sealing baffle 32, the outer walls on both sides of the second sealing baffle 32 are fixedly connected to the second rotating shaft 46, one end of the second rotating shaft 46 penetrates to the inner side of the auxiliary seat 45 and is rotatably connected to the auxiliary seat 45, and a second torsion spring 47 is installed between the second rotating shaft 46 and the auxiliary seat 45;

[0032] A stirrer is provided inside the filling barrel 3. When a variety of materials enter the filling barrel 3, they can be stirred by the stirrer. A delivery pump can be provided at the output end of the filling barrel 3, and the output end of the delivery pump is connected to the first hose 4. When filling is required, the mixed raw materials can be delivered to the first hose 4 by the delivery pump.

[0033] First, there is a certain gap between the connecting sleeve 20 and the top of the storage tank 16. The middle of the support seat 1 is located at the bottom of the storage tank 16, and a conveyor for conveying the storage tank 16 can be installed. The storage tank 16 can be transported by the conveyor.

[0034] The filling head 21 is equipped with a third solenoid valve, and the material is discharged from the filling head 21 by opening and closing the third solenoid valve. When the storage tank 16 needs to be filled, the first hydraulic cylinder 6 can be started, and the output end of the first hydraulic cylinder 6 drives the first connecting ring 5 to drive the filling head 21 to move downward. When the first connecting ring 5 stops at the specified position, the second hydraulic cylinder 7 is started, and the output end of the second hydraulic cylinder 7 drives the second connecting ring 19 to drive the filling head 21 to move downward and insert into the interior of the connecting sleeve 20. Then, when the discharge pipe 30 contacts the second sealing baffle 32, the second sealing baffle 32 is pushed to rotate, thereby opening the bottom of the piston block 33, and then the filling head 21 is controlled by the PLC controller for filling, so that the viscous material in the filling barrel 3 can start to flow in from the bottom of the storage tank 16 and spread upward, avoiding the viscous material after the engine combustion chamber coating is prepared. Contact with a large amount of air during the filling process, thereby avoiding a large amount of oxygen in the filled material, thereby ensuring the stability of the raw materials during storage.

[0035] Embodiment 2: An exhaust assistant is located at the end of the preservation cover 18, and is used to reduce the contact between the viscous material entering the preservation tank 16 and oxygen. The exhaust assistant includes an inert gas storage box 9 fixedly connected to one side of the bracket 2, and the output end of the inert gas storage box 9 is connected to a second hose 10, one end of the second hose 10 is fixedly connected to an air guide pipe 11, one end of the air guide pipe 11 is fixedly connected to a first solenoid valve 13, one end of the first solenoid valve 13 is fixedly connected to a bending pipe 15, and a second solenoid valve 14 is installed at the air outlet of the bending pipe 15. A through hole 42 that penetrates to the interior is opened at the top of the preservation cover 18, and the exhaust assistant also includes a fixed seat 29 fixedly connected to the top of the inner side of the preservation cover 18, and a first sealing baffle 28 is arranged on the inner side of the fixed seat 29, and the outer walls on both sides of the first sealing baffle 28 are fixedly connected to a first rotating shaft 43, and one end of the first rotating shaft 43 penetrates to the outside of the fixed seat 29 and is rotatably connected to the fixed seat 29, and between the first rotating shaft 43 and the fixed seat 29 A first torsion spring 44 is installed, the top of the through hole 42 is set as a cone, the outer wall of the bending tube 15 is fixedly connected with a sealing rubber 27, and a locking assembly for fixing the piston block 33 and the connecting sleeve 20 is provided on the inner side of the piston block 33. The locking assembly includes two first latches 35 slidably connected to the inner side of the piston block 33, one end of the first latch 35 is fixedly connected to the first connecting spring 37, and one end of the first connecting spring 37 is fixedly connected to the piston block 33. A first fixing hole 34 matching the first latch 35 is provided on the inner side of the connecting sleeve 20, and an inclined groove 40 is provided on the inner side of the first latch 35. An arc-shaped ejector rod 36 is fixedly connected to the bottom of the filling head 21. The locking assembly also includes a second latch 38 slidably connected to the inner side of the piston block 33, one end of the second latch 38 is fixedly connected to the second connecting spring 39, and one end of the second connecting spring 39 is fixedly connected to the piston block 33. A second fixing hole 41 matching the second latch 38 is provided on the inner side of the storage cover 18;

[0036] When the first connecting ring 5 moves downward, the connecting block 8 drives the bending tube 15 to move downward, so that the bending tube 15 is inserted into the through hole 42 to push open the first sealing baffle 28 and seal it through the sealing rubber 27. Then, before filling, the second solenoid valve 14 is opened. At this time, the first solenoid valve 13 is in a closed state. Then, during the process of the material in the storage tank 16 being filled from the bottom, oxygen can be squeezed out from the second solenoid valve 14, thereby preventing the storage tank 16 from containing a large amount of oxygen after filling.

[0037] When the filling head 21 is inserted into the connecting sleeve 20, the arc-shaped ejector rod 36 is driven. When the arc-shaped push rod 36 is inserted into the inner side of the first latch 35 and contacts the inner inclined surface of the inclined groove 40, the first latch 35 is pushed to retract to the inner side of the piston block 33, so that the piston block 33 is no longer fixed to the connecting sleeve 20. At the same time, the piston block 33 is clamped on the outer wall of the arc-shaped push rod 36 by the first latch 35 under the extrusion of the first connecting spring 37, so that after the filling head 21 is reset to be flush with the top of the storage cover 18, the second latch 38 is aligned with the second fixing hole 41, so that the second latch 38 is inserted into the inside of the second fixing hole 41 under the action of the second connecting spring 39, thereby fixing the piston block 33 to the storage cover 18, so that after the storage tank 16 is filled, the discharge pipe 30 can be promptly closed by the second sealing baffle 32 after being moved out from the inner side of the storage cover 18, thereby preventing the outside oxygen from entering the storage tank 16 during the shaking process after the filling.

[0038] When the filling head 21 can close the second solenoid valve 14 and open the first solenoid valve 13 before resetting, so that the filling head 21 drives the piston block 33 to move upward, the inert gas inside the inert gas storage box 9 can enter the storage tank 16 and be located on the top of the material, thereby forming protection for the material during storage, thereby improving the overall practicality of the device.

[0039] Embodiment 3: A clamping auxiliary part is located on both sides of the preservation tank 16 and is used to calibrate and reinforce the preservation tank 16. The clamping auxiliary part includes a connecting block 8 fixedly connected to both sides of the first connecting ring 5, a connecting rod 12 is fixedly connected to the bottom of the connecting block 8, one end of the connecting rod 12 is fixedly connected to a trapezoidal block 23, a support plate 22 is fixedly connected to the inner side of the bracket 2, a sliding rod 24 is slidably connected to the inner side of the support plate 22, one end of the sliding rod 24 is fixedly connected to a clamping ring 17, an auxiliary spring 25 is installed between the clamping ring 17 and the support plate 22, and the other end of the sliding rod 24 penetrates the inner side of the support plate 22 and is rotatably connected to a roller 26;

[0040] When the first connecting ring 5 moves downward, it drives the two trapezoidal blocks 23 to move downward. When the inner inclined surfaces of the trapezoidal blocks 23 contact with a roller 26 respectively, the sliding rod 24 is pushed to drive the clamping ring 17 to move toward the outer wall of the preservation tank 16. When the trapezoidal block 23 stops moving, it is clamped on the outer wall of the preservation tank 16 by the two clamping rings 17, thereby improving the stability of the preservation tank 16 during the filling process.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for preparing, processing and preserving an engine combustion chamber coating, characterized in that: include; A support seat (1) and a bracket (2) fixedly connected to the top of the support seat (1); a filling barrel (3) is installed on the inner side of the bracket (2); the output end of the filling barrel (3) is connected to a first hose (4); the bottom of the first hose (4) is fixedly connected to a first connecting ring (5); a third hose (48) is installed at the discharge port of the first connecting ring (5); a filling head (21) is installed at the discharge port of the third hose (48); a second connecting ring (19) is fixedly connected to the outer wall of the filling head (21); and a discharge pipe (30) is fixedly connected to the discharge port of the filling head (21); A preservation tank (16), the preservation tank (16) being placed on the top of the support base (1), and a preservation cover (18) being installed on the top of the preservation tank (16); An auxiliary storage mechanism, located between the end of the filling head (21) and the inner side of the storage tank (16), and used to reduce the amount of bubbles left inside the viscous material that enters the storage tank (16); An exhaust assistor, located at the end of the storage cover (18), for reducing the contact between the viscous material entering the storage tank (16) and oxygen; Clamping auxiliary parts, located on both sides of the storage tank (16), used for calibrating and reinforcing the storage tank (16); The auxiliary storage mechanism comprises a first hydraulic cylinder (6) installed at the bottom of the filling barrel (3), the output end of the first hydraulic cylinder (6) being fixedly connected to the first connecting ring (5), a second hydraulic cylinder (7) being installed on the top of the first connecting ring (5), the output end of the second hydraulic cylinder (7) passing through the bottom of the first connecting ring (5) and being fixedly connected to the second connecting ring (19), a connecting sleeve (20) being fixedly connected to the top of the storage cover (18), a fixing ring (31) being fixedly connected to the inner side of the connecting sleeve (20), a piston block (33) being arranged on the top of the fixing ring (31), a shielding protection component for shielding being arranged at the through hole of the piston block (33), and a locking component for fixing the piston block (33) to the connecting sleeve (20) being arranged on the inner side of the piston block (33); The locking assembly comprises two first latches (35) slidably connected to the inner side of the piston block (33); one end of the first latches (35) is fixedly connected to a first connecting spring (37); one end of the first connecting spring (37) is fixedly connected to the piston block (33); a first fixing hole (34) matching the first latches (35) is formed on the inner side of the connecting sleeve (20); an inclined groove (40) is formed on the inner side of the first latches (35); and a curved push rod (36) is fixedly connected to the bottom of the filling head (21); The locking assembly further comprises a second latch (38) slidably connected to the inner side of the piston block (33), one end of the second latch (38) being fixedly connected to a second connecting spring (39), one end of the second connecting spring (39) being fixedly connected to the piston block (33), and a second fixing hole (41) matching the second latch (38) being formed on the inner side of the storage cover (18); The shielding protection assembly comprises an auxiliary seat (45) fixedly connected to the bottom of the piston block (33); a second sealing baffle (32) is arranged on the inner side of the auxiliary seat (45); second rotating shafts (46) are fixedly connected to the outer walls on both sides of the second sealing baffle (32); one end of the second rotating shaft (46) passes through the inner side of the auxiliary seat (45) and is rotatably connected to the auxiliary seat (45); and a second torsion spring (47) is installed between the second rotating shaft (46) and the auxiliary seat (45).

2. The engine combustion chamber coating preparation, processing and preservation device according to claim 1, characterized in that: The clamping auxiliary component comprises a connecting block (8) fixedly connected to both sides of the first connecting ring (5), the bottom of the connecting block (8) is fixedly connected to a connecting rod (12), one end of the connecting rod (12) is fixedly connected to a trapezoidal block (23), the inner side of the bracket (2) is fixedly connected to a support plate (22), the inner side of the support plate (22) is slidably connected to a sliding rod (24), one end of the sliding rod (24) is fixedly connected to a clamping ring (17), an auxiliary spring (25) is installed between the clamping ring (17) and the support plate (22), and the other end of the sliding rod (24) passes through the inner side of the support plate (22) and is rotatably connected to a roller (26).

3. The engine combustion chamber coating preparation, processing and preservation device according to claim 2, characterized in that: The exhaust auxiliary device comprises an inert gas storage box (9) fixedly connected to one side of the bracket (2); the output end of the inert gas storage box (9) is connected to a second hose (10); one end of the second hose (10) is fixedly connected to an air guide pipe (11); one end of the air guide pipe (11) is fixedly connected to a first solenoid valve (13); one end of the first solenoid valve (13) is fixedly connected to a bending pipe (15); a second solenoid valve (14) is installed at the air outlet of the bending pipe (15); and a through hole (42) penetrating to the interior is opened at the top of the storage cover (18).

4. The engine combustion chamber coating preparation, processing and preservation device according to claim 3, characterized in that: The exhaust auxiliary device also includes a fixing seat (29) fixedly connected to the top of the inner side of the storage cover (18), a first sealing baffle (28) is arranged on the inner side of the fixing seat (29), and a first rotating shaft (43) is fixedly connected to the outer walls on both sides of the first sealing baffle (28), and one end of the first rotating shaft (43) passes through the outside of the fixing seat (29) and is rotatably connected to the fixing seat (29), and a first torsion spring (44) is installed between the first rotating shaft (43) and the fixing seat (29).

5. The engine combustion chamber coating preparation, processing and preservation device according to claim 4, characterized in that: The top of the through hole (42) is arranged as a conical surface, and the outer wall of the bent tube (15) is fixedly connected with a sealing rubber (27).