Environment-friendly noise reduction exhaust pipe for automobile

Abstract

The environment-friendly noise reduction exhaust pipe for the automobile comprises a main body, connecting bases are fixedly installed at the left end and the right end of the main body, and connecting pipes are arranged at the left ends and the right ends of the two connecting bases. According to the environment-friendly noise reduction exhaust pipe for the automobile, the main body is arranged, when sound waves are conveyed into the main body through the connecting pipe, the sound waves are transmitted into the silencing pipe through the air inlet pipe under the blocking of the first partition plate, and the sound waves are mutually transmitted in the first partition plate and the second partition plate under the assistance of the silencing pipe and the second partition plate; in the propagation process, if the propagation directions of sound waves are mutually staggered, a large amount of noise can be offset, and the decibel of the sound waves is reduced under the assistance of the sound insulation plates, so that the noise reduction effect of the exhaust pipe can be enhanced; and by arranging the connecting base and the connecting pipe, the stability of connection between the main body and the catalytic converter can be improved, and under the mutual cooperation of the connecting ring and the connecting groove, the sealing performance of connection can be enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to an environmentally friendly noise-reducing exhaust pipe for an automobile. Background Art

[0002] The automobile exhaust pipe is part of the engine exhaust system. The exhaust system mainly includes the exhaust manifold, exhaust pipe and muffler. Generally, 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.

[0003] The prior art (Announcement No.: CN219101445U) discloses an environmentally friendly noise-reducing exhaust pipe for automobiles, including a muffler mechanism, wherein the outer side of the muffler mechanism is symmetrically fixedly connected to an air pipe, and the opposite ends of the two air pipes are respectively fixedly connected to a filter box and an exhaust tail pipe, the left end of the filter box is connected to a three-way catalytic device, and the left end of the three-way catalytic device is connected to an exhaust device, the top of the filter box is provided with three mounting holes, and the interior of the filter box is provided with three mesh frames, the upper ends of the mesh frames are movably arranged inside the mounting holes, the interior of the mesh frames is fixedly connected to a filter screen, and the top of the mesh frames is fixedly connected to a handle The inner wall of the handle is symmetrically provided with a sliding groove, and the interior of the sliding groove is slidably connected to a corresponding sliding plate. A first spring is provided inside the sliding groove, and a limiting groove is symmetrically provided on the inner wall of the mounting hole. A hollow body is symmetrically provided inside the net frame, and the interior of the hollow body is slidably connected to a corresponding movable plate. One side of the movable plate is fixedly connected to a second spring, and the other side of the movable plate is fixedly connected to a limiting rod. A wire hole communicating with the hollow cavity is provided on the top surface of the net frame, and a pull rope is fixedly connected to one side of the movable plate, and the end of the pull rope away from the movable plate passes through the second spring and the wire hole and is fixedly connected to the sliding plate. The beneficial effect of the utility model is that: the handle is held by hand and the sliding plate is driven to move upward, the sliding plate moves upward to pull the pull rope upward, the pull rope pulls the movable plate to one side of the wire hole, and at the same time the movement of the movable plate drives the limit rod to move out of the interior of the limit groove, thereby releasing the limit on the screen frame, and then the handle is directly lifted and moved upward to take out the corresponding filter screen from the interior of the filter box through the mounting hole. The disassembly process is simple and fast.

[0004] Existing environmentally friendly noise-reducing exhaust pipes for automobiles have the following drawbacks. Since the existing exhaust pipes have a mediocre noise reduction effect and the connection effect between the exhaust pipe and the catalytic converter is mediocre, the equipment has certain limitations. Therefore, we propose a new environmentally friendly noise-reducing exhaust pipe for automobiles. Utility Model Content

[0005] The main purpose of the utility model is to provide an environmentally friendly noise-reducing exhaust pipe for an automobile, which can effectively solve the problem of unsatisfactory noise reduction effect of the exhaust pipe.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An environmentally friendly noise-reducing exhaust pipe for automobiles, comprising a main body, a connecting seat fixedly installed on the left and right ends of the main body, a connecting pipe provided on the left and right ends of the two connecting seats, a No. 1 baffle fixedly installed on the left side of the main body, a No. 2 baffle fixedly installed on the right side of the main body, a muffler pipe fixedly installed between the No. 1 baffle and the No. 2 baffle, an air intake pipe fixedly inserted and connected on the left end of the No. 1 baffle, and two sound insulation boards fixedly installed on the right side of the main body; first, the No. 1 baffle and the No. 2 baffle are fixedly installed inside the main body At the same time, the silencer is connected between the No. 1 partition and the No. 2 partition, and the sound insulation board is fixed in the main body. When the sound wave is transported into the main body through the connecting pipe, and is blocked by the No. 1 partition, the sound wave is propagated into the silencer through the intake pipe, and with the assistance of the silencer and the No. 2 partition, the sound waves are propagated to each other in the No. 1 partition and the No. 2 partition. In the process of propagation, if the propagation directions of the sound waves are intertwined, a large amount of noise will be offset, and with the assistance of the sound insulation board, the decibel of the sound wave will be reduced, thereby enhancing the noise reduction effect of the exhaust pipe.

[0008] Preferably, a fixing ring is fixedly sleeved on the left part of the outer surface of the connecting seat, a connecting groove is provided at the left end of the connecting seat, and a plurality of through-holes passing through to the left and right are provided at the left end of the fixing ring, and a reinforcing bolt is movably inserted and connected inside the through-hole; first, the connecting pipe is connected to the catalyst, and the mounting ring is fixed to the connecting pipe, and then the fixing ring is fixed to the connecting seat, and the reinforcing bolt passes through the through-hole and is threadedly inserted and connected in the screw hole. Through the interaction of the reinforcing bolt, the fixing ring and the mounting ring, the connection between the main body and the catalyst is made more secure, and the connecting ring is connected in the connecting groove during connection, and the connecting ring and the connecting groove cooperate with each other to enhance the sealing of the connection.

[0009] Preferably, the two connecting seats are distributed symmetrically on the left and right, and the plurality of perforations are distributed in a ring array.

[0010] Preferably, a connecting ring is fixedly connected to the right end of the connecting pipe, a mounting ring is fixedly sleeved on the right part of the outer surface of the connecting pipe, and a plurality of screw holes are opened on the right end of the mounting ring.

[0011] Preferably, the connecting ring is connected to the inside of the connecting groove, and the plurality of screw holes are distributed in a ring array.

[0012] Preferably, the reinforcing bolt passes through the through hole and is threadedly inserted into the screw hole.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the present invention, the noise reduction effect of the exhaust pipe can be enhanced by providing a main body. When in use, the first and second partitions are first fixed inside the main body, and the silencer pipe is connected between the first and second partitions. The sound insulation board is then fixed inside the main body. When sound waves are transported into the main body through the connecting pipe, they are blocked by the first partition and propagate through the intake pipe into the silencer pipe. With the assistance of the silencer pipe and the second partition, the sound waves propagate between the first and second partitions. During the propagation process, if the propagation directions of the sound waves intersect with each other, a large amount of noise will be offset. With the assistance of the sound insulation board, the decibel level of the sound waves is reduced, thereby enhancing the noise reduction effect of the exhaust pipe.

[0015] 2. In the present invention, by providing a connecting seat and a connecting pipe, the stability of the connection between the main body and the catalyst can be increased. When in use, the connecting pipe is first connected to the catalyst, and the mounting ring is fixed to the connecting pipe, and then the fixing ring is fixed to the connecting seat. The reinforcing bolt passes through the through hole and is threadedly inserted into the screw hole. Through the interaction of the reinforcing bolt, the fixing ring and the mounting ring, the connection between the main body and the catalyst is made more secure. When connecting, the connecting ring is connected to the connecting groove, and the connecting ring and the connecting groove cooperate with each other to enhance the sealing of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an environmentally friendly noise-reducing exhaust pipe for an automobile according to the present invention;

[0017] Figure 2 This is a cross-sectional view of the main structure of an environmentally friendly noise-reducing exhaust pipe for automobiles according to the present utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of a connecting seat for an environmentally friendly noise-reducing exhaust pipe for an automobile according to the present invention;

[0019] Figure 4 This is a schematic diagram of the overall structure of a connecting pipe of an environmentally friendly noise-reducing exhaust pipe for an automobile according to the present invention.

[0020] In the figure: 1. Main body; 2. Connecting seat; 3. Connecting pipe; 4. No. 1 partition; 5. Inlet pipe; 6. Silencer; 7. No. 2 partition; 8. Sound insulation board; 21. Fixing ring; 22. Through hole; 23. Reinforcement bolt; 24. Connecting groove; 31. Connecting ring; 32. Mounting ring; 33. Screw hole. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] like Figure 1-4 As shown, an environmentally friendly noise reduction exhaust pipe for automobiles includes a main body 1, a connecting seat 2 is fixedly installed on the left and right ends of the main body 1, and a connecting pipe 3 is provided on the left and right ends of the two connecting seats 2. A No. 1 partition 4 is fixedly installed on the left side of the main body 1, and a No. 2 partition 7 is fixedly installed on the right side of the main body 1. A silencer pipe 6 is fixedly installed between the No. 1 partition 4 and the No. 2 partition 7. The left end of the No. 1 partition 4 is fixedly connected with an intake pipe 5, and two sound insulation boards 8 are fixedly installed on the right side of the main body 1. By setting the main body 1, the noise reduction effect of the exhaust pipe can be enhanced. When in use, first, the No. 1 partition 4 and the No. 2 partition are fixedly installed. Plate 7 is fixed inside the main body 1, and the silencer 6 is connected between the No. 1 partition 4 and the No. 2 partition 7, and then the sound insulation board 8 is fixed in the main body 1. When the sound wave is transported to the main body 1 through the connecting pipe 3, and is blocked by the No. 1 partition 4, the sound wave is transmitted to the silencer 6 through the intake pipe 5, and with the assistance of the silencer 6 and the No. 2 partition 7, the sound waves are propagated to each other in the No. 1 partition 4 and the No. 2 partition 7. During the propagation process, if the propagation directions of the sound waves are intertwined, a large amount of noise will be offset, and with the assistance of the sound insulation board 8, the decibel of the sound wave is reduced, thereby enhancing the noise reduction effect of the exhaust pipe.

[0025] The left side of the outer surface of the connecting seat 2 is fixedly sleeved with a fixing ring 21, and the left end of the connecting seat 2 is provided with a connecting groove 24. The left end of the fixing ring 21 is provided with a plurality of through-holes 22 that pass through to the left and right, and a reinforcing bolt 23 is movably inserted and connected inside the through-hole 22; the two connecting seats 2 are symmetrically distributed on the left and right, and the plurality of through-holes 22 are distributed in a circular array; the right end of the connecting pipe 3 is fixedly connected with a connecting ring 31, and the right side of the outer surface of the connecting pipe 3 is fixedly sleeved with a mounting ring 32, and the right end of the mounting ring 32 is provided with a plurality of screw holes 33; the connecting ring 31 is connected to the inside of the connecting groove 24, and the plurality of screw holes 33 are distributed in a circular array; the reinforcing bolt 23 passes through the through-hole 22 and is threadedly inserted and connected to In the screw hole 33; by setting the connecting seat 2 and the connecting pipe 3, the stability of the connection between the main body 1 and the catalyst can be increased. When in use, first connect the connecting pipe 3 to the catalyst, and fix the mounting ring 32 on the connecting pipe 3, and then fix the fixing ring 21 on the connecting seat 2. The reinforcing bolt 23 passes through the through hole 22 and is threadedly inserted into the screw hole 33. Through the interaction of the reinforcing bolt 23, the fixing ring 21 and the mounting ring 32, the connection between the main body 1 and the catalyst is made more secure. When connecting, the connecting ring 31 is connected to the connecting groove 24, and the connecting ring 31 and the connecting groove 24 cooperate with each other to enhance the sealing of the connection.

[0026] It should be noted that the utility model is an environmentally friendly noise-reducing exhaust pipe for automobiles. By setting up a main body 1, the noise reduction effect of the exhaust pipe can be enhanced. When in use, first fix the No. 1 partition 4 and the No. 2 partition 7 inside the main body 1, and at the same time connect the silencer pipe 6 between the No. 1 partition 4 and the No. 2 partition 7, and then fix the sound insulation board 8 inside the main body 1. When the sound wave is transported into the main body 1 through the connecting pipe 3, and is blocked by the No. 1 partition 4, the sound wave is propagated through the intake pipe 5 to the silencer pipe 6, and with the assistance of the silencer pipe 6 and the No. 2 partition 7, the sound wave is propagated to each other in the No. 1 partition 4 and the No. 2 partition 7. During the propagation process, if the propagation directions of the sound waves are intertwined, a large amount of noise will be offset, and the sound insulation will be achieved. With the assistance of the plate 8, the decibel level of the sound waves is reduced, thereby enhancing the noise reduction effect of the exhaust pipe; by setting the connecting seat 2 and the connecting pipe 3, the stability of the connection between the main body 1 and the catalyst can be increased. When in use, first connect the connecting pipe 3 to the catalyst, and fix the mounting ring 32 on the connecting pipe 3, and then fix the fixing ring 21 on the connecting seat 2. The reinforcing bolt 23 passes through the through hole 22 and is threadedly connected to the screw hole 33. Through the interaction of the reinforcing bolt 23, the fixing ring 21 and the mounting ring 32, the connection between the main body 1 and the catalyst is made more secure. When connecting, the connecting ring 31 is connected to the connecting groove 24, and the connecting ring 31 and the connecting groove 24 cooperate with each other to enhance the sealing of the connection.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly noise-reducing exhaust pipe for automobiles, comprising a main body (1), characterized in that: The left and right ends of the main body (1) are both fixedly installed with a connecting seat (2), and the left and right ends of the two connecting seats (2) are both provided with a connecting pipe (3). A No. 1 partition (4) is fixedly installed on the left side of the interior of the main body (1), and a No. 2 partition (7) is fixedly installed on the right side of the interior of the main body (1). A silencer pipe (6) is fixedly installed between the No. 1 partition (4) and the No. 2 partition (7). An air intake pipe (5) is fixedly inserted and connected to the left end of the No. 1 partition (4), and two sound insulation boards (8) are fixedly installed on the right side of the interior of the main body (1).

2. The environmentally friendly noise-reducing exhaust pipe for automobiles according to claim 1, characterized in that: A fixing ring (21) is fixedly sleeved on the left portion of the outer surface of the connecting seat (2), a connecting groove (24) is provided at the left end of the connecting seat (2), a plurality of through holes (22) passing through the left and right sides are provided at the left end of the fixing ring (21), and a reinforcing bolt (23) is movably inserted and connected inside the through holes (22).

3. The environmentally friendly noise-reducing exhaust pipe for automobiles according to claim 2, characterized in that: The two connecting seats (2) are distributed symmetrically on the left and right, and the plurality of through holes (22) are distributed in a ring array.

4. The environmentally friendly noise-reducing exhaust pipe for automobiles according to claim 3, characterized in that: The right end of the connecting pipe (3) is fixedly connected with a connecting ring (31), the right part of the outer surface of the connecting pipe (3) is fixedly sleeved with a mounting ring (32), and the right end of the mounting ring (32) is provided with a plurality of screw holes (33).

5. The environmentally friendly noise-reducing exhaust pipe for automobiles according to claim 4, characterized in that: The connecting ring (31) is connected to the inside of the connecting groove (24), and the plurality of screw holes (33) are distributed in a ring array.

6. The environmentally friendly noise-reducing exhaust pipe for automobiles according to claim 5, characterized in that: The reinforcing bolt (23) passes through the through hole (22) and is threadedly inserted into the screw hole (33).

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