Exhaust structure of automobile engine

Abstract

The utility model relates to the technical field of automobile engine exhaust structures, in particular to an automobile engine exhaust structure which comprises an exhaust manifold body, a ring seat capable of being used for connection is integrally constructed at the air outlet end of the exhaust manifold body, and a disc seat capable of being used for connection is assembled at the end, away from the exhaust manifold body, of the ring seat through a bolt. Ring grooves for connection are formed in the opposite surfaces of the ring seat and the disc seat; when the automobile exhaust pipe is installed after being maintained or replaced, the ring body and the ring groove between the disc base and the ring base can be connected in an inserted mode, then the disc base and the ring base can be fixed through bolts, the tightness is high after the disc base and the ring base are connected, and the leakage condition is not prone to occurring; and therefore, the exhaust pipe can stably and smoothly operate subsequently.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile engine exhaust structures, in particular to an automobile engine exhaust structure. Background Art

[0002] The exhaust pipe is part of the engine exhaust system, which mainly includes the exhaust manifold, exhaust pipe and muffler. The three-way catalytic converter for controlling engine pollutant emissions is also installed in the exhaust system. The exhaust pipe generally includes the front exhaust pipe and the rear exhaust pipe. However, when the exhaust pipe fails, it needs to be disassembled for maintenance or replacement. When the exhaust pipe is installed, the exhaust pipe and the exhaust manifold are only connected by rubber pads and flanges. The two are prone to leakage due to installation errors, and the tightness is poor. To this end, we propose an automobile engine exhaust structure. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides an automobile engine exhaust structure.

[0004] The technical solution adopted by the utility model to solve the technical problem is an automobile engine exhaust structure, including an exhaust manifold body, the exhaust manifold body has an integral ring seat for connection at the gas outlet end, and the end of the ring seat away from the exhaust manifold body is assembled with a disc seat for connection through bolts, the ring seat and the disc seat are both provided with a ring groove for connection on the opposite side, and the ring seat and the disc seat are both integrally constructed with a ring body that fits and connects with the ring groove on the opposite side;

[0005] The end of the disc seat away from the pipe seat is integrally constructed with a bent pipe that can be used for diversion, and the end of the bent pipe away from the disc seat is equipped with a muffler that can be used for noise reduction, and the end of the muffler away from the bent pipe is equipped with a straight pipe that can be used for exhaust, and the inner sides of the straight pipe and the bent pipe are both provided with cavities that can be used for sound insulation, and the outer peripheries of the straight pipe and the bent pipe are both equipped with branch pipes connected to the cavities, and the inner sides of the branch pipes are equipped with valves that can be used to control opening and closing.

[0006] By adopting the above technical solution, when the automobile exhaust pipe is installed after maintenance or replacement, the ring body and the ring groove between the disc seat and the ring seat can be plugged into each other, and then the disc seat and the ring seat can be fixed with bolts, and the tightness between the two after connection is strong, and it is not easy to leak, so that the exhaust pipe can operate stably and smoothly afterwards;

[0007] When using the exhaust pipe of a car engine, the bent pipe and the straight pipe cooperate with each other to facilitate the discharge of the exhaust gas of the car engine. At the same time, the muffler between the two is convenient for reducing the noise generated during exhaust. At the same time, the vacuum cavity inside the bent pipe and the straight pipe is convenient for improving the sound insulation effect. The air in the cavity can be extracted through the branch pipe by using a vacuum pump to make the cavity form a vacuum state. At the same time, the valve is convenient for controlling the opening and closing of the inside of the branch pipe.

[0008] Specifically, a gasket ring for auxiliary support is installed at one end of the inner periphery of the straight pipe away from the muffler through screws, and a grille net for protection is installed on the inner side of the gasket ring.

[0009] By adopting the above technical solution, the gasket is installed on the air outlet end of the straight pipe by screws, so that the gasket can drive the grille to protect the exhaust end of the straight pipe, so that garbage and debris will not enter the inside of the straight pipe and cause blockage of the straight pipe.

[0010] Specifically, a rubber ring for protection is bonded to one end of the gasket close to the branch pipe.

[0011] By adopting the above technical solution, the rubber ring can assist in supporting the gasket, so that the gasket will not be damaged by friction with the straight pipe during installation.

[0012] Specifically, a leak-proof rubber ring is bonded to the inner bottom surface of the annular groove.

[0013] By adopting the above technical solution, the rubber ring can improve the tightness between the ring groove and the ring body after connection, thereby improving the tightness between the disc seat and the ring seat after connection.

[0014] Specifically, a screw cap for sealing is screwed on the outer periphery of the branch pipe.

[0015] By adopting the above technical solution, the screw cap and the branch pipe are screwed together, which facilitates the sealing and protection of the open end of the branch pipe, so that dust and debris cannot enter therein.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The technical solution of the present application, through the design of the exhaust manifold body, the ring seat, the disc seat, the ring groove and the ring body, can make the ring body and the ring groove between the disc seat and the ring seat plug into each other when the automobile exhaust pipe is installed after maintenance or replacement, and then the disc seat and the ring seat can be fixed with bolts, and the tightness between the two after connection is strong, and it is not easy to leak, so that the exhaust pipe can operate stably and smoothly afterwards.

[0018] 2. The technical solution of the present application adopts the design of a bent pipe, a muffler, a straight pipe, a cavity, a branch pipe and a valve. When the exhaust pipe of an automobile engine is used, the bent pipe and the straight pipe cooperate with each other to facilitate the discharge of the exhaust gas of the automobile engine. At the same time, the muffler between the two facilitates to reduce the noise generated during exhaust. At the same time, the vacuum cavity inside the bent pipe and the straight pipe facilitates to improve the sound insulation effect. The air in the cavity can be extracted through the branch pipe by using a vacuum pump to make the cavity form a vacuum state. At the same time, the valve facilitates the opening and closing of the inside of the branch pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is an axonometric drawing of the utility model;

[0021] Figure 2 It is a schematic cross-sectional view of the connection structure between the ring seat and the disc seat of the utility model;

[0022] Figure 3 This is a schematic diagram of the inner structure of the straight tube of the utility model;

[0023] In the figure: 1, exhaust manifold body; 2, ring seat; 3, disc seat; 4, ring groove; 5, ring body; 6, elbow pipe; 7, muffler; 8, straight pipe; 9, cavity; 10, branch pipe; 11, valve; 12, gasket; 13, grille; 14, rubber ring; 15, rubber ring; 16, screw cap. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] See also Figure 1-3 The embodiment of the utility model provides a technical solution: an automobile engine exhaust structure, including an exhaust manifold body 1, an exhaust manifold body 1 having an integrally constructed ring seat 2 for connection at the outlet end thereof, and an end of the ring seat 2 away from the exhaust manifold body 1 is equipped with a disc seat 3 for connection through bolts, an annular groove 4 for connection is provided on the opposite side of the ring seat 2 and the disc seat 3, and an annular body 5 which is matched and connected with the annular groove 4 is integrally constructed on the opposite side of the ring seat 2 and the disc seat 3; an end of the disc seat 3 away from the pipe seat is integrally constructed with an elbow 6 for diversion, and an end of the elbow 6 away from the disc seat 3 is equipped with a muffler 7 for noise reduction, an end of the muffler 7 away from the elbow 6 is equipped with a straight pipe 8 for exhaust, a cavity 9 for sound insulation is provided on the inner side of the straight pipe 8 and the elbow 6, and a branch pipe 10 connected with the cavity 9 is provided on the outer periphery of the straight pipe 8 and the elbow 6, and a valve 11 for controlling opening and closing is provided on the inner side of the branch pipe 10.

[0026] When in use, when the automobile exhaust pipe is maintained or replaced and then installed, the ring body 5 and the ring groove 4 between the disc seat 3 and the ring seat 2 can be plugged into each other, and then the disc seat 3 and the ring seat 2 can be fixed with bolts, and the tightness between the two after connection is strong, and it is not easy to leak, so that the exhaust pipe can operate stably and smoothly afterwards;

[0027] When the automobile engine exhaust pipe is used, the curved pipe 6 and the straight pipe 8 cooperate with each other to discharge the exhaust gas of the automobile engine. At the same time, the muffler 7 between the two is convenient for reducing the noise generated during exhaust. At the same time, the vacuum cavity 9 inside the curved pipe 6 and the straight pipe 8 is convenient for improving the sound insulation effect. The air in the cavity 9 can be extracted through the branch pipe 10 by using a vacuum pump to make the cavity 9 form a vacuum state. At the same time, the valve 11 is convenient for controlling the opening and closing of the inside of the branch pipe 10.

[0028] like Figure 1 and Figure 3 As shown, a gasket 12 for auxiliary support is installed at one end of the inner periphery of the straight pipe 8 away from the muffler 7 by screws, and a grille 13 for protection is installed inside the gasket 12.

[0029] When in use, the gasket 12 is installed at the air outlet end of the straight pipe 8 by screws, so that the gasket 12 can drive the grille 13 to protect the exhaust end of the straight pipe 8, so that garbage and debris will not enter the inside of the straight pipe 8 and cause blockage of the straight pipe 8.

[0030] like Figure 3 As shown, a rubber ring 14 for protection is bonded to one end of the gasket 12 close to the branch pipe 10 .

[0031] When in use, the rubber ring 14 is convenient for auxiliary support of the gasket 12, so that the gasket 12 will not be damaged by friction with the straight pipe 8 during installation.

[0032] like Figure 2 As shown, a rubber ring 15 for preventing leakage is bonded to the inner bottom surface of the annular groove 4 .

[0033] When in use, the rubber ring 15 is convenient for improving the tightness of the connection between the ring groove 4 and the ring body 5, thereby improving the tightness of the connection between the disc seat 3 and the ring seat 2.

[0034] like Figure 1 As shown, a screw cap 16 for sealing is screwed on the outer periphery of the branch pipe 10 .

[0035] When in use, the rotary cover 16 and the branch pipe 10 are screwed together to facilitate sealing and protecting the open end of the branch pipe 10 so that dust and debris cannot enter therein.

[0036] The working principle and use process of the utility model are as follows: when in use, first install the corresponding structural components in a suitable position. When installing after maintenance or replacement of the automobile exhaust pipe, the ring body 5 and the ring groove 4 between the disc seat 3 and the ring seat 2 can be plugged into each other, and then the disc seat 3 and the ring seat 2 can be fixed with bolts, and the tightness after the connection between the two is strong, and leakage is not easy to occur, so that the exhaust pipe can operate stably and smoothly in the future. At the same time, the bent pipe 6 and the straight pipe 8 cooperate with each other to facilitate the discharge of the exhaust gas of the automobile engine. At the same time, the muffler 7 between the two is convenient to reduce the noise generated during exhaust. At the same time, the vacuum cavity 9 on the inner side of the bent pipe 6 and the straight pipe 8 is convenient to improve the sound insulation effect, and the air in the cavity 9 can be extracted through the branch pipe 10 by using a vacuum pump, so that the cavity 9 can be formed into a vacuum state, and the valve 11 is convenient for controlling the opening and closing of the inner side of the branch pipe 10.

[0037] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. An automobile engine exhaust structure, characterized in that: The exhaust manifold body (1) comprises an exhaust manifold body (1), wherein the exhaust manifold body (1) is integrally constructed with a ring seat (2) for connection at the exhaust outlet end, and the end of the ring seat (2) away from the exhaust manifold body (1) is assembled with a disc seat (3) for connection via bolts, and the ring seat (2) and the disc seat (3) are both provided with a ring groove (4) for connection on one side opposite to the disc seat (3), and the ring seat (2) and the disc seat (3) are both integrally constructed with a ring body (5) for fitting and connecting with the ring groove (4); The end of the disc seat (3) away from the pipe seat is integrally constructed with a curved pipe (6) that can be used for diversion, and the end of the curved pipe (6) away from the disc seat (3) is equipped with a muffler (7) that can be used for noise reduction, and the end of the muffler (7) away from the curved pipe (6) is equipped with a straight pipe (8) that can be used for exhaust, and the inner sides of the straight pipe (8) and the curved pipe (6) are both provided with a cavity (9) that can be used for sound insulation, and the outer peripheries of the straight pipe (8) and the curved pipe (6) are both equipped with a branch pipe (10) that is connected to the cavity (9), and the inner side of the branch pipe (10) is equipped with a valve (11) that can be used for opening and closing control.

2. An automobile engine exhaust structure according to claim 1, characterized in that: A gasket (12) for auxiliary support is installed at one end of the inner periphery of the straight pipe (8) away from the muffler (7) through screws, and a grille net (13) for protection is installed inside the gasket (12).

3. The automobile engine exhaust structure according to claim 2, characterized in that: A rubber ring (14) for protection is bonded to one end of the gasket (12) close to the branch pipe (10).

4. The automobile engine exhaust structure according to claim 1, characterized in that: A leak-proof rubber ring (15) is bonded to the inner bottom surface of the annular groove (4).

5. The automobile engine exhaust structure according to claim 1, characterized in that: A screw cap (16) which can be used for sealing is screwed and installed on the outer periphery of the branch pipe (10).

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