Sealing structure for exhaust pipe of yacht engine

Abstract

The utility model relates to the technical field of engine exhaust pipes, and discloses a yacht engine exhaust pipe sealing structure which comprises a first connecting pipe and a second connecting pipe, the outer wall of the first connecting pipe is fixedly connected with a first connecting flange, and one side of the outer wall of the first connecting pipe is fixedly connected with a fireproof gasket. And a silica gel sealing ring is arranged on one side of the fireproof gasket. According to the utility model, the sealing performance of the first connecting pipe and the second connecting pipe is better through the fireproof gasket and the silica gel sealing ring, and meanwhile, the corrosion caused by high temperature and seawater can be reduced; through the spring washer and the piston sealing ring, the problems of deformation and displacement of the first connecting pipe and the second connecting pipe caused by vibration during starting can be effectively relieved, the sealing performance between the connecting pipes is ensured through the structure, and meanwhile the problem of sealing failure caused by vibration and high temperature is effectively avoided; safe operation of the exhaust pipe is ensured, and the service life of the exhaust pipe is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of engine exhaust pipes, in particular to a sealing structure of an exhaust pipe of a yacht engine. Background Art

[0002] The exhaust pipe is a component of the engine system, used to discharge the exhaust gas and waste heat generated by the engine combustion to the external environment. It is connected to the exhaust port of the engine and guides the exhaust gas to the outside of the car, motorcycle, ship or other equipment through a pipe. The yacht engine exhaust pipe is a pipe system on the yacht used to discharge the exhaust gas and waste heat generated by the engine combustion. The yacht engine exhaust pipe guides the engine exhaust gas to the external environment of the yacht, and also helps to dissipate the heat generated during the exhaust process. In the prior art, the gasket in the exhaust pipe may leak after long-term use, and is prone to burning, which may lead to exhaust leakage and cause sealing failure. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the prior art that the gasket in the exhaust pipe may leak after long-term use and is easily burned, which further leads to exhaust leakage and sealing failure, and to propose a yacht engine exhaust pipe sealing structure.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a yacht engine exhaust pipe sealing structure, comprising a first connecting pipe and a second connecting pipe, the outer wall of the first connecting pipe is fixedly connected to a first connecting flange, one side of the outer wall of the first connecting pipe is fixedly connected to a fireproof gasket, one side of the fireproof gasket is provided with a silicone sealing ring, the inner ring of the silicone sealing ring is fixedly connected to the outer wall of the first connecting pipe, one side of the outer wall of the first connecting flange is fixedly connected to a spring washer, the inner ring of the spring washer is fixedly connected to a piston sealing ring, and the outer wall of the piston sealing ring is fixedly connected to one side of the outer wall of the first connecting flange.

[0005] As a further description of the above technical solution:

[0006] A fixing groove is formed on the outer wall of the first connecting flange, fixing bolts are threadedly connected to the inner wall of the first connecting flange, and fixing nuts are threadedly connected to one side of the outer wall of the fixing bolts.

[0007] As a further description of the above technical solution:

[0008] A second connecting flange is fixedly connected to one side of the outer wall of the second connecting pipe, a fixing ring is fixedly connected to one side of the outer wall of the second connecting flange, and the outer wall of the fixing ring is slidably connected to the inside of the fixing groove.

[0009] As a further description of the above technical solution:

[0010] A first annular groove is formed on the inner wall of the second connecting pipe, and a second annular groove is formed on the front side of the inner wall of the second connecting pipe.

[0011] As a further description of the above technical solution:

[0012] The outer surface of the second connecting flange is provided with threaded holes all around.

[0013] As a further description of the above technical solution:

[0014] The silicone sealing ring is set to O type, and the silicone sealing ring is set to high temperature resistant silicone material.

[0015] As a further description of the above technical solution:

[0016] The diameter of the first connecting tube is smaller than that of the second connecting tube, and one side of the outer wall of the first connecting tube is slidably connected to the inner wall of the second connecting tube.

[0017] As a further description of the above technical solution:

[0018] The fireproof gasket is arranged in a circular shape and is made of fireproof and flame-retardant rubber material.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, the fireproof gasket and the silicone sealing ring make the sealing of the first connecting pipe and the second connecting pipe better, and at the same time can reduce the erosion caused by high temperature and seawater. The spring washer and the piston sealing ring can effectively reduce the vibration caused by the engine working, which causes the first connecting pipe and the second connecting pipe to produce deformation and displacement. This structure ensures the sealing between the connecting pipes, and effectively avoids the problem of sealing failure caused by vibration and high temperature, thereby ensuring the safe operation of the exhaust pipe and increasing the service life of the exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional schematic diagram of a yacht engine exhaust pipe sealing structure proposed by the utility model;

[0022] Figure 2 This is a structural disassembly diagram of a yacht engine exhaust pipe sealing structure proposed by the utility model;

[0023] Figure 3 This is a schematic diagram of a second connecting pipe of a yacht engine exhaust pipe sealing structure proposed by the utility model.

[0024] Legend:

[0025] 1. First connecting pipe; 2. Second connecting pipe; 3. First connecting flange; 4. Second connecting flange; 5. Spring washer; 6. Piston sealing ring; 7. Fireproof washer; 8. Silicone sealing ring; 9. Fixing groove; 10. Fixing ring; 11. First ring groove; 12. Second ring groove; 13. Fixing bolt; 14. Threaded hole; 15. Fixing nut. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-3 The utility model provides an embodiment: a yacht engine exhaust pipe sealing structure, including a first connecting pipe 1 and a second connecting pipe 2, the outer wall of the first connecting pipe 1 is fixedly connected with a first connecting flange 3, a fireproof gasket 7 is fixedly connected to one side of the outer wall of the first connecting pipe 1, a silicone sealing ring 8 is arranged on one side of the fireproof gasket 7, the inner ring of the silicone sealing ring 8 is fixedly connected to the outer wall of the first connecting pipe 1, a spring washer 5 is fixedly connected to one side of the outer wall of the first connecting flange 3, the inner ring of the spring washer 5 is fixedly connected to a piston sealing ring 6, and the outer wall of the piston sealing ring 6 is fixedly connected to one side of the outer wall of the first connecting flange 3, the fireproof gasket 7 and the silicone sealing ring 8 make the sealing performance of the first connecting pipe 1 and the second connecting pipe 2 better, and at the same time can reduce the erosion caused by high temperature and seawater, and the spring washer 5 and the piston sealing ring 6 can effectively reduce the vibration caused by the engine working, which causes the first connecting pipe 1 and the second connecting pipe 2 to produce deformation and displacement.

[0028] The outer wall of the first connecting flange 3 is provided with a fixing groove 9, and the inner wall of the first connecting flange 3 is threadedly connected with fixing bolts 13, and the outer wall side of the fixing bolts 13 is threadedly connected with fixing nuts 15, and the tightness and stability of the connection are ensured by the fixing bolts 13 and the fixing nuts 15. The outer wall side of the second connecting pipe 2 is fixedly connected with the second connecting flange 4, and the outer wall side of the second connecting flange 4 is fixedly connected with a fixing ring 10, and the outer wall of the fixing ring 10 is slidably connected to the inside of the fixing groove 9, and the fixing ring 10 is inserted into the fixing groove 9, so that the first connecting flange 3 and the second connecting flange 4 can be tightly attached, and at the same time, it provides convenience for the subsequent fixation. The inner wall of the second connecting pipe 2 is provided with a first annular groove 1 1, a second annular groove 12 is provided on the front side of the inner wall of the second connecting pipe 2, and the fireproof gasket 7 and the silicone sealing ring 8 on the outer wall of the first connecting pipe 1 are respectively inserted into the first annular groove 11 and the second annular groove 12, so that the first connecting pipe 1 and the second connecting pipe 2 can be sealed, and the outer surface of the second connecting flange 4 is provided with threaded holes 14 all around, and the silicone sealing ring 8 is set to O-type, and the silicone sealing ring 8 is set to high-temperature resistant silicone material, so that the performance of the silicone sealing ring 8 is improved and it is more durable, the diameter of the first connecting pipe 1 is smaller than the diameter of the second connecting pipe 2, one side of the outer wall of the first connecting pipe 1 is slidably connected to the inner wall of the second connecting pipe 2, and the fireproof gasket 7 is set to be circular, and the fireproof gasket 7 is set to fire-retardant rubber material.

[0029] Working principle: The fixing ring 10 is inserted into the fixing groove 9, so that the first connecting flange 3 and the second connecting flange 4 can be tightly attached to each other, and at the same time, it provides convenience for the subsequent fixation. The fireproof gasket 7 and the silicone sealing ring 8 on the outer wall of the first connecting pipe 1 are respectively inserted into the first ring groove 11 and the second ring groove 12, so that the first connecting pipe 1 and the second connecting pipe 2 can be sealed. The first connecting flange 3 and the second connecting flange 4 can be fixed by tightening and fixing the fixing bolts 13 and the fixing nuts 15, so that the first connecting flange 3 and the second connecting flange 4 can be fixed and sealed between the first connecting pipe 1 and the second connecting pipe 2. The fireproof gasket 7 and the silicone sealing ring 8 make the sealing performance of the first connecting pipe 1 and the second connecting pipe 2 better. At the same time, it can be lower than the erosion caused by high temperature and seawater. The spring washer 5 and the piston sealing ring 6 can effectively reduce the vibration caused by the engine working, which causes the first connecting pipe 1 and the second connecting pipe 2 to deform and displace, thereby ensuring that the exhaust pipes have good sealing performance. This structure is easy to operate and solves the problem in the prior art that the gasket in the exhaust pipe may leak after long-term use and is prone to burning, thereby causing exhaust gas leakage and sealing failure. The sealing between the connecting pipes is ensured, and the sealing failure caused by vibration and high temperature is effectively avoided, thereby ensuring the safe operation of the exhaust pipe and increasing the service life of the exhaust pipe.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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 yacht engine exhaust pipe sealing structure, comprising a first connecting pipe (1) and a second connecting pipe (2), characterized in that: The outer wall of the first connecting pipe (1) is fixedly connected to a first connecting flange (3); a fireproof gasket (7) is fixedly connected to one side of the outer wall of the first connecting pipe (1); a silicone sealing ring (8) is provided on one side of the fireproof gasket (7); the inner ring of the silicone sealing ring (8) is fixedly connected to the outer wall of the first connecting pipe (1); a spring gasket (5) is fixedly connected to one side of the outer wall of the first connecting flange (3); the inner ring of the spring gasket (5) is fixedly connected to a piston sealing ring (6); the outer wall of the piston sealing ring (6) is fixedly connected to one side of the outer wall of the first connecting flange (3).

2. A yacht engine exhaust pipe sealing structure according to claim 1, characterized in that: The outer wall of the first connecting flange (3) is provided with a fixing groove (9), the inner wall of the first connecting flange (3) is threadedly connected with fixing bolts (13) all around, and one side of the outer wall of the fixing bolts (13) is threadedly connected with fixing nuts (15).

3. The yacht engine exhaust pipe sealing structure according to claim 1, characterized in that: A second connecting flange (4) is fixedly connected to one side of the outer wall of the second connecting pipe (2), a fixing ring (10) is fixedly connected to one side of the outer wall of the second connecting flange (4), and the outer wall of the fixing ring (10) is slidably connected to the inside of the fixing groove (9).

4. A yacht engine exhaust pipe sealing structure according to claim 1, characterized in that: The inner wall of the second connecting pipe (2) is provided with a first annular groove (11), and the front side of the inner wall of the second connecting pipe (2) is provided with a second annular groove (12).

5. The yacht engine exhaust pipe sealing structure according to claim 3, characterized in that: The outer surface of the second connecting flange (4) is provided with threaded holes (14) all around the periphery.

6. The yacht engine exhaust pipe sealing structure according to claim 1, characterized in that: The silicone sealing ring (8) is configured as an O-type, and the silicone sealing ring (8) is configured as a high-temperature resistant silicone material.

7. The yacht engine exhaust pipe sealing structure according to claim 1, characterized in that: The diameter of the first connecting tube (1) is smaller than the diameter of the second connecting tube (2), and one side of the outer wall of the first connecting tube (1) is slidably connected to the inner wall of the second connecting tube (2).

8. The yacht engine exhaust pipe sealing structure according to claim 1, characterized in that: The fireproof gasket (7) is arranged in a circular shape and is made of a fireproof and flame-retardant rubber material.

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