Automobile exhaust pipe heat shield assembly with multiple times of sound attenuation and noise reduction treatment

Abstract

The automobile exhaust pipe heat shield assembly comprises a smoke exhaust pipe body, a connecting disc is arranged on the left side of the smoke exhaust pipe body, two bolts are connected to the outer surface of the connecting disc in a threaded mode, gaskets are arranged on the outer surfaces of the two bolts in a sleeved mode, and the gaskets are connected with the connecting disc in a threaded mode. The inner wall of the smoke exhaust pipe body is fixedly connected with a sound insulation pad, and the inner wall of the smoke exhaust pipe body is fixedly connected with a sound absorption pad. According to the automobile exhaust pipe heat shield assembly with the multiple silencing and noise reduction treatment functions, the smoke exhaust pipe body, the connecting pipe, the bolt, the connecting disc, the gasket, the supporting rod, a damper, a stabilizing rod, a fixing rod, a spring, an output pipe, a sound insulation pad and a sound absorption pad are arranged in a matched mode; the smoke exhaust pipe body, the connecting pipe, the bolt, the connecting disc, the gasket, the supporting rod, the damper, the stabilizing rod, the fixing rod, the spring, the output pipe, the sound insulation pad and the sound absorption pad are matched; and through filtering and sound insulation of the sound insulation pad and the sound absorption pad, the decibel value generated by noise can be greatly reduced, no noise is generated, the device can be normally used, and the service life of the device can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of automobile exhaust, in particular to an automobile exhaust pipe heat insulation cover assembly having undergone multiple silencing and noise reduction treatments. Background Art

[0002] The exhaust pipe is a part of the engine's exhaust system. The exhaust system mainly includes the exhaust manifold, exhaust pipe and muffler. Generally, a three-way catalytic converter for controlling engine pollutant emissions is also installed in the exhaust system. The exhaust pipe generally includes a front exhaust pipe and a rear exhaust pipe. In the process of exhaust pipe discharging exhaust gas to the outside, the heat contained inside is relatively large, and a heat shield is needed to protect it.

[0003] The noise generated by automobile exhaust is part of automobile noise. Therefore, it is necessary to mute the exhaust pipe. At present, the exhaust pipe will shake during the exhaust process. When the exhaust pipe collides with the car body, it will generate noise, which will not only affect the normal use of the device, but also affect the service life of the device. For this reason, we provide an automobile exhaust pipe heat insulation cover assembly with multiple mute and noise reduction treatments. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides an automobile exhaust pipe heat insulation cover assembly with multiple silencing and noise reduction treatments, which solves the technical problems raised by the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automobile exhaust pipe heat insulation cover assembly with multiple sound silencing and noise reduction treatments, comprising an exhaust pipe body, a connecting plate is provided on the left side of the exhaust pipe body, two bolts are threadedly connected to the outer surface of the connecting plate, and gaskets are sleeved on the outer surfaces of the two bolts, a sound insulation pad is fixedly connected to the inner wall of the exhaust pipe body, a sound absorbing pad is fixedly connected to the inner wall of the exhaust pipe body, a fixing rod is fixedly connected to the right side surface of the exhaust pipe body, a spring is fixedly connected to the outer surface of the fixing rod, a stabilizing rod is fixedly connected to the bottom end of the spring, a support rod is fixedly connected to the right side surface of the exhaust pipe body, a damper is fixedly connected to the outer surface of the support rod, and the upper surface of the damper is fixedly connected to the outer surface of the stabilizing rod.

[0008] Preferably, the left side surface of the smoke exhaust pipe body is fixedly connected with a connecting pipe, and the top end of the connecting pipe is fixedly connected to the bottom surface of the connecting plate.

[0009] Preferably, the right side surface of the smoke exhaust pipe body is fixedly connected with an output pipe, and the inner circle of the stabilizing rod is sleeved with the outer surface of the output pipe.

[0010] Preferably, the smoke exhaust pipe body is made of 304 stainless steel.

[0011] Preferably, the bottom ends of the two bolts are fixedly connected with hexagonal heads.

[0012] (III) Beneficial effects

[0013] The utility model provides a heat shield assembly for automobile exhaust pipes with multiple noise reduction treatments, which has the following beneficial effects:

[0014] The automobile exhaust pipe heat insulation cover assembly with multiple silencing and noise reduction treatments is equipped with a smoke exhaust pipe body, a connecting pipe, bolts, a connecting plate, a gasket, a support rod, a damper, a stabilizing rod, a fixing rod, a spring, an output pipe, a sound insulation pad and a sound absorbing pad. When the noise inside the exhaust pipe passes through the smoke exhaust pipe body, it is filtered and soundproofed by the sound insulation pad and the sound absorbing pad, so the decibel value of the noise generated can be greatly reduced. At the same time, the spring and the damper are used in coordination. The spring can buffer the shaking of the output pipe, and the damper can reduce the shock of the buffering force so that the output pipe will not shake and generate noise, which can enable the normal use of the device and ensure the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the front view of the smoke exhaust pipe of the utility model;

[0017] Figure 3 It is a sectional view of the side view of the smoke exhaust pipe body of the utility model.

[0018] In the figure: 1. exhaust pipe body; 2. connecting pipe; 3. bolt; 4. connecting plate; 5. gasket; 6. support rod; 7. damper; 8. stabilizing rod; 9. fixing rod; 10. spring; 11. output pipe; 12. sound insulation pad; 13. sound absorbing pad. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figure 1-3As shown, the utility model provides a technical solution: a car exhaust pipe heat insulation cover assembly with multiple silencing and noise reduction treatments, including an exhaust pipe body 1, a connecting plate 4 is provided on the left side of the exhaust pipe body 1, two bolts 3 are threadedly connected to the outer surface of the connecting plate 4, and gaskets 5 are sleeved on the outer surfaces of the two bolts 3, a sound insulation pad 12 is fixedly connected to the inner wall of the exhaust pipe body 1, a sound absorbing pad 13 is fixedly connected to the inner wall of the exhaust pipe body 1, a fixing rod 9 is fixedly connected to the right side of the exhaust pipe body 1, a spring 10 is fixedly connected to the outer surface of the fixing rod 9, a stabilizing rod 8 is fixedly connected to the bottom end of the spring 10, a support rod 6 is fixedly connected to the right side of the exhaust pipe body 1, a damper 7 is fixedly connected to the outer surface of the support rod 6, and the upper surface of the damper 7 is fixedly connected to the outer surface of the stabilizing rod 8. First, install this device to the rear of the car. When the noise inside the exhaust pipe passes through the exhaust pipe body 1, it is filtered and soundproofed by the sound insulation pad 12 and the sound absorbing pad 13, which can greatly reduce the decibel value of the noise. At the same time, the spring 10 and the damper 7 are used in coordination. The spring 10 can buffer the shaking of the output pipe 11, and the damper 7 can damp the buffering force so that the output pipe 11 will not shake and generate noise, which can enable the normal use of this device and ensure the service life of this device.

[0021] The left side of the smoke exhaust pipe body 1 is fixedly connected with a connecting pipe 2, and the top of the connecting pipe 2 is fixedly connected to the bottom surface of the connecting plate 4, so that the installation of the smoke exhaust pipe body 1 is realized, which is convenient for subsequent use.

[0022] The right side of the smoke exhaust pipe body 1 is fixedly connected with an output pipe 11, and the inner circle of the stabilizing rod 8 is sleeved with the outer surface of the output pipe 11, so that the smoke is exhausted and the subsequent normal driving of the vehicle is convenient.

[0023] The smoke exhaust pipe body 1 is made of 304 stainless steel. The bottom ends of the two bolts 3 are fixedly connected with hexagonal heads. The shape of the hexagonal heads can facilitate subsequent installation and disassembly. The 304 stainless steel material can increase the service life of the smoke exhaust pipe body 1 and ensure the normal use of this device.

[0024] When in use, first install this device to the rear of the car. When the noise inside the exhaust pipe passes through the exhaust pipe body 1, it is filtered and soundproofed by the sound insulation pad 12 and the sound absorbing pad 13, which can greatly reduce the decibel value of the noise. At the same time, the spring 10 and the damper 7 are used in conjunction with each other. The spring 10 can buffer the shaking of the output pipe 11, and the damper 7 can damp the buffering force so that the output pipe 11 will not shake and generate noise, which can enable the normal use of this device and ensure the service life of this device. At the same time, the contents not described in detail in this manual belong to the existing technology known to professional and technical personnel in this field.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile exhaust pipe heat shield assembly with multiple silencing and noise reduction treatments, comprising an exhaust pipe body (1), characterized in that: The left side of the smoke exhaust pipe body (1) is provided with a connecting plate (4), the outer surface of the connecting plate (4) is threadedly connected with two bolts (3), the outer surfaces of the two bolts (3) are sleeved with gaskets (5), the inner wall of the smoke exhaust pipe body (1) is fixedly connected with a sound insulation pad (12), the inner wall of the smoke exhaust pipe body (1) is fixedly connected with a sound absorption pad (13), the right side of the smoke exhaust pipe body (1) is fixedly connected with a fixing rod (9), the outer surface of the fixing rod (9) is fixedly connected with a spring (10), the bottom end of the spring (10) is fixedly connected with a stabilizing rod (8), the right side of the smoke exhaust pipe body (1) is fixedly connected with a support rod (6), the outer surface of the support rod (6) is fixedly connected with a damper (7), and the upper surface of the damper (7) is fixedly connected to the outer surface of the stabilizing rod (8).

2. The automobile exhaust pipe heat shield assembly with multiple silencing and noise reduction treatments according to claim 1 is characterized in that: The left side surface of the smoke exhaust pipe body (1) is fixedly connected to a connecting pipe (2), and the top end of the connecting pipe (2) is fixedly connected to the bottom surface of the connecting plate (4).

3. The automobile exhaust pipe heat shield assembly with multiple noise reduction treatments according to claim 1 is characterized in that: The right side surface of the smoke exhaust pipe body (1) is fixedly connected to an output pipe (11), and the inner ring of the stabilizing rod (8) is sleeved with the outer surface of the output pipe (11).

4. The automobile exhaust pipe heat shield assembly with multiple silencing and noise reduction treatments according to claim 1 is characterized in that: The smoke exhaust pipe body (1) is made of 304 stainless steel.

5. The automobile exhaust pipe heat shield assembly with multiple silencing and noise reduction treatments according to claim 1 is characterized in that: The bottom ends of the two bolts (3) are both fixedly connected with hexagonal heads.

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