Diesel engine high-temperature-resistant silencer

Abstract

The utility model discloses a diesel engine high temperature resistant silencer which comprises a silencer body, two ends of the silencer body are provided with an air inlet pipe and an air outlet pipe, the diesel engine high temperature resistant silencer is characterized by further comprising an upper protective shell and a lower protective shell, the upper protective shell and the lower protective shell are arranged on the outer side of the silencer body in a sleeved mode, and the upper protective shell and the lower protective shell are fixedly connected. Supporting structures are arranged between the silencer body and the upper protective shell and between the silencer body and the lower protective shell. The air inlet pipe penetrates through the lower protective shell and is arranged outwards, the air inlet pipe is fixedly connected with the lower protective shell, and a plurality of air inlet holes are formed in the lower protective shell; the air outlet pipe penetrates through the upper protective shell and is arranged outwards, the air outlet pipe is fixedly connected with the upper protective shell, an air outlet channel is fixed to the outer end of the air outlet pipe, a plurality of inclined pipes are fixed to the air outlet channel, and the inclined pipes are fixedly connected with the upper protective shell and communicate with the upper protective shell. The high-temperature-resistant silencer of the diesel engine has the advantages of being simple in structure, capable of automatically dissipating heat and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of mufflers, in particular to a high temperature resistant muffler for a diesel engine. Background Art

[0002] Diesel engines are a common driving device that is widely used in various fields. Since diesel engines generate a lot of noise during braking, which not only maintains people's health but also affects the user experience of diesel engines, people usually use mufflers to reduce the noise of diesel engines. Conventional diesel engine mufflers are used by the mutual cooperation between the muffler and the exhaust port. Through the internal structure of the muffler, the gas is converted to achieve the silencing treatment.

[0003] When the existing diesel engine is working, the muffler itself will have high temperature, and the external environment will also generate high temperature. A high-temperature resistant shell is currently installed on the outside of the muffler to prevent the influence of the external high temperature on the muffler, but it is not conducive to the dissipation of internal heat, which will affect the quality and service life of the muffler. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by this patent application is how to provide a diesel engine high temperature resistant muffler with a simple structure, self-heating capability and ease of use.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A diesel engine high temperature resistant muffler comprises a muffler body, wherein both ends of the muffler body are provided with an air inlet pipe and an air outlet pipe, and further comprises an upper protective shell and a lower protective shell, wherein the upper protective shell and the lower protective shell are sleeved on the outer side of the muffler body and the upper protective shell and the lower protective shell are fixedly connected, and a supporting structure is arranged between the muffler body and the upper protective shell and the lower protective shell;

[0007] The air inlet pipe is arranged outward through the lower protective shell and is fixedly connected to the lower protective shell, and the lower protective shell is provided with a plurality of air inlet holes;

[0008] The air outlet pipe passes through the upper protective shell and is arranged outwardly and is fixedly connected to the upper protective shell. An air outlet channel is fixedly arranged at the outer end of the air outlet pipe. A plurality of inclined tubes are fixedly arranged in the air outlet channel. The inclined tubes are fixedly connected to the upper protective shell and are in communication with the upper protective shell.

[0009] In this way, the muffler body is an existing structure, and a muffler structure is installed inside it. After the exhaust pipe of the diesel engine is connected to the intake pipe, the exhaust gas discharged by the diesel engine is discharged from the outlet pipe after being silenced by the muffler. When the exhaust gas is discharged from the outlet pipe, due to the flow of air, the air flow between the upper protective shell, the lower protective shell and the muffler body is driven through the inclined pipe, so that the external gas enters the outside of the muffler body and flows from the air inlet to the inclined pipe, and is discharged from the outlet channel, thereby driving the heat flow between the upper protective shell, the lower protective shell and the muffler body, and being discharged from the outlet channel, so as to achieve the effect of cooling the muffler body. After cooling the muffler body, the quality and service life of the muffler are better extended.

[0010] The support structure includes a plurality of fixed rings installed at intervals on the outside of the muffler body, wherein the fixed rings are fixed with slip rings via connecting rods, and the slip rings are slidably matched with the inner side walls of the upper protective shell and the lower protective shell.

[0011] The ends of the upper protective shell and the lower protective shell facing each other protrude outward to form flanges, and the flanges of the upper protective shell and the lower protective shell facing each other are connected by bolts and nuts.

[0012] Wherein, a high temperature resistant sealing gasket is arranged between the flanges facing the upper protective shell and the lower protective shell.

[0013] Among them, four inclined tubes are evenly distributed along the circumference of the air outlet channel.

[0014] In summary, the high temperature resistant muffler of the diesel engine has the advantages of simple structure, autonomous heat dissipation and easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic structural diagram of a high temperature resistant muffler for a diesel engine.

[0016] Figure 2 for Figure 1 Exploded diagram of .

[0017] Figure 3 for Figure 2 Schematic diagram of another orientation. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings. In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "upper, lower" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0019] like Figure 1-3 As shown, a high temperature resistant muffler for a diesel engine comprises a muffler body 1, wherein both ends of the muffler body are provided with an air inlet pipe 2 and an air outlet pipe 3, and further comprises an upper protective shell 4 and a lower protective shell 5, wherein the upper protective shell and the lower protective shell are sleeved on the outer side of the muffler body and the upper protective shell and the lower protective shell are fixedly connected, and a supporting structure is arranged between the muffler body and the upper protective shell and the lower protective shell;

[0020] The air inlet pipe passes through the lower protective shell and is arranged outwardly and is fixedly connected to the lower protective shell. The lower protective shell is provided with a plurality of air inlet holes 6;

[0021] The air outlet pipe passes through the upper protective shell and is arranged outwardly and is fixedly connected to the upper protective shell. An air outlet channel 7 is fixedly provided at the outer end of the air outlet pipe. A plurality of inclined tubes 8 are fixedly provided to the air outlet channel. The inclined tubes are fixedly connected to the upper protective shell and are in communication with the upper protective shell.

[0022] In this way, the muffler body is an existing structure, and a muffler structure is installed inside it. After the exhaust pipe of the diesel engine is connected to the intake pipe, the exhaust gas discharged by the diesel engine is discharged from the outlet pipe after being silenced by the muffler. When the exhaust gas is discharged from the outlet pipe, due to the flow of air, the air flow between the upper protective shell, the lower protective shell and the muffler body is driven through the inclined pipe, so that the external gas enters the outside of the muffler body and flows from the air inlet to the inclined pipe, and is discharged from the outlet channel, thereby driving the heat flow between the upper protective shell, the lower protective shell and the muffler body, and being discharged from the outlet channel, so as to achieve the effect of cooling the muffler body. After cooling the muffler body, the quality and service life of the muffler are better extended.

[0023] During implementation, the support structure includes a plurality of fixed rings 11 fixedly installed at intervals on the outside of the muffler body, the fixed rings are fixed with slip rings 13 through connecting rods 12, and the slip rings are slidably matched with the inner side walls of the upper protective shell and the lower protective shell, so as to provide support for the muffler body and the upper protective shell and the lower protective shell, reduce vibration, and reduce noise.

[0024] During implementation, the ends of the upper protective shell and the lower protective shell facing each other protrude outward to form a flange 14, and the flanges of the upper protective shell and the lower protective shell facing each other are connected by bolts and nuts for easy connection.

[0025] During implementation, a high temperature resistant sealing gasket is arranged between the flanges facing the upper protective shell and the lower protective shell, so as to achieve better sealing and allow the airflow to flow from the air inlet to the outlet channel, taking away the heat.

[0026] During implementation, four inclined tubes are evenly distributed along the circumference of the air outlet channel to facilitate air flow.

[0027] Finally, it should be noted that those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include these modifications and variations.

Claims

1. A diesel engine high temperature resistant muffler, comprising a muffler body, wherein both ends of the muffler body have an air inlet pipe and an air outlet pipe, characterized in that: It also includes an upper protective shell and a lower protective shell, wherein the upper protective shell and the lower protective shell are sleeved on the outside of the muffler body and the upper protective shell and the lower protective shell are fixedly connected, and a supporting structure is arranged between the muffler body and the upper protective shell and the lower protective shell; The air inlet pipe is arranged outward through the lower protective shell and is fixedly connected to the lower protective shell, and the lower protective shell is provided with a plurality of air inlet holes; The air outlet pipe passes through the upper protective shell and is arranged outwardly and is fixedly connected to the upper protective shell. An air outlet channel is fixedly arranged at the outer end of the air outlet pipe. A plurality of inclined tubes are fixedly arranged in the air outlet channel. The inclined tubes are fixedly connected to the upper protective shell and are in communication with the upper protective shell.

2. A diesel engine high temperature resistant muffler according to claim 1, characterized in that: The support structure comprises a plurality of fixed rings fixedly installed at intervals on the outside of the muffler body, wherein the fixed rings are fixed with slip rings via connecting rods, and the slip rings are slidably matched with the inner side walls of the upper protective shell and the lower protective shell.

3. A diesel engine high temperature resistant muffler according to claim 2, characterized in that: The ends of the upper protective shell and the lower protective shell facing each other protrude outward to form flanges, and the flanges of the upper protective shell and the lower protective shell facing each other are connected by bolts and nuts.

4. A diesel engine high temperature resistant muffler according to claim 1, characterized in that: A high temperature resistant sealing gasket is arranged between the flanges facing the upper protective shell and the lower protective shell.

5. A diesel engine high temperature resistant muffler according to claim 1, characterized in that: Four inclined tubes are evenly distributed along the circumference of the air outlet channel.

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