Automobile exhaust pipe with noise reduction function

Abstract

The utility model discloses an automobile exhaust pipe with a noise reduction function, and belongs to the field of automobile exhaust pipes. Comprising an exhaust pipe body; the two fixing discs are fixedly connected to the two ends of the exhaust pipe body; the threaded holes are uniformly formed in the fixed disc in the circumferential direction; the sound absorption cotton is movably arranged in the exhaust pipe body and attached to the inner wall of the exhaust pipe body; the fixing rod is fixedly connected to the inner wall of the exhaust pipe body; the first fixing plate penetrates through the fixing rod, and the first fixing plate and the fixing rod are installed in a sliding mode; the fixing spring is arranged on the fixing rod in a sleeving mode, and the fixing spring is fixedly connected between the first fixing plate and the inner wall of the exhaust pipe body; the further fixing assembly is detachably installed in the exhaust pipe body. The automobile exhaust pipe has the beneficial effect that the automobile exhaust pipe with the silencing function is provided.

Description

Technical Field

[0001] The present application relates to the field of automobile exhaust pipes, and in particular to an automobile exhaust pipe with a silencing function. Background Art

[0002] With the continuous development of economy, cars have become more and more popular and widely used in industry and agriculture. However, with the increase in the number of cars, the accompanying traffic noise pollution is becoming increasingly prominent. The main noise of cars comes from the exhaust system of cars, that is, the exhaust emission noise of cars.

[0003] The structure of the product can refer to the automobile exhaust pipe with a silencing function disclosed in Chinese patent document 202122892449.1, which includes a main pipe, an air intake pipe, an air outlet pipe, an exhaust gas purifier, a first silencing mechanism and a second silencing mechanism; the air intake pipe and the air outlet pipe are coaxially arranged at the left and right ends of the horizontally arranged main pipe, and the air intake pipe, the main pipe and the air outlet pipe are integrally formed with each other and sealed and connected; an exhaust gas purifier is also connected between the pipe and the air outlet pipe, and the first silencing mechanism and the second silencing mechanism are respectively arranged inside the main pipe from left to right; the exhaust gas enters the main pipe from the air intake pipe, and is subjected to two-stage silencing treatment by the first silencing mechanism and the second silencing mechanism in turn, and then the exhaust gas is purified by the exhaust gas purifier before being discharged through the air outlet pipe. The utility model realizes two-stage silencing and improves the silencing effect through the coordinated use of the first silencing cotton and the partition.

[0004] However, in this patent, the sound-absorbing cotton has the effect of absorbing and reducing noise, but it is troublesome when it needs to be replaced.

[0005] A kind of automobile exhaust pipe with silencing function is provided now. Utility Model Content

[0006] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0007] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide an automobile exhaust pipe with a silencing function, including: an exhaust pipe body; two fixing plates, which are fixedly connected to the two ends of the exhaust pipe body; a plurality of threaded holes, which are evenly arranged on the fixing plates in a circumferential direction; sound-absorbing cotton, which is movably arranged inside the exhaust pipe body and fits with the inner wall of the exhaust pipe body; a fixing rod, which is fixedly connected to the inner wall of the exhaust pipe body; a first fixing plate, which passes through the fixing rod and is slidably installed with the fixing rod; a fixing spring, which is sleeved on the fixing rod, and the fixing spring is fixedly connected between the first fixing plate and the inner wall of the exhaust pipe body; and a further fixing component, which is detachably installed in the exhaust pipe body.

[0008] Furthermore, the further fixing assembly includes a fixing screw and a second fixing plate, a thread groove is opened on the inner wall of the exhaust pipe body, and the fixing screw is threadedly connected to the thread groove, and the second fixing plate is threadedly connected to the fixing screw, and the second fixing plate corresponds to the sound-absorbing cotton.

[0009] Furthermore, a limiting groove is provided on the inner wall of the exhaust pipe body, a mounting plate is fixedly connected to the second fixing plate, and a limiting strip corresponding to the limiting groove is fixedly connected to the mounting plate.

[0010] Furthermore, a knob is fixedly connected to the fixing screw.

[0011] Furthermore, the knob is provided with anti-slip grooves.

[0012] Furthermore, the fixing screw, the second fixing plate, the limiting groove, the limiting strip and the mounting plate are each provided with two.

[0013] Furthermore, the limiting strip is cylindrical.

[0014] Furthermore, the first fixing plate is arc-shaped and corresponds to the sound-absorbing cotton.

[0015] Furthermore, the second fixing plate is arc-shaped and corresponds to the sound-absorbing cotton.

[0016] Furthermore, the first fixing plate, the fixing rod and the fixing spring are each provided with two.

[0017] The beneficial effects of this application are:

[0018] 1. By setting the sound-absorbing cotton, it plays a role in sound absorption and noise reduction, so that the exhaust pipe body has the function of silencing.

[0019] Second, by setting a fixing spring, a first fixing plate and a fixing rod, the sound-absorbing cotton is initially clamped and fixed.

[0020] Third, by setting a fixing screw, a second fixing plate, a mounting plate and a limiting rod, the sound-absorbing cotton can be clamped and fixed again, thereby improving the stability during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0022] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0023] In the attached picture:

[0024] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0025] Figure 2 It is a cross-sectional view;

[0026] Figure 3 It is a cross-sectional view of the sound-absorbing cotton;

[0027] Figure 4 yes Figure 2 A magnified view of part A;

[0028] Figure 5 yes Figure 3 Enlarged view of part B.

[0029] Reference numerals:

[0030] 1. Exhaust pipe body; 2. Threaded hole; 3. Fixing plate; 4. Sound-absorbing cotton; 5. Mounting plate; 6. Knob; 7. Fixing screw; 8. Second fixing plate; 9. Anti-slip pattern; 10. Fixing spring; 11. Threaded groove; 12. Limiting groove; 13. Limiting strip; 14. Fixing rod; 15. First fixing plate. DETAILED DESCRIPTION

[0031] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0032] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0033] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0034] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0035] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0036] Reference Figure 1-5 , an automobile exhaust pipe with a silencing function, comprising: an exhaust pipe body 1, a fixing plate 3, sound-absorbing cotton 4, a fixing rod 14, a first fixing plate 15, a fixing spring 10, and a further fixing component. Two fixing plates 3 are provided, and are fixedly connected to both ends of the exhaust pipe body 1. A plurality of threaded holes 2 are provided, and are evenly opened on the fixing plate 3 in the circumferential direction. The sound-absorbing cotton 4 is movably arranged inside the exhaust pipe body 1, and fits with the inner wall of the exhaust pipe body 1. The fixing rod 14 is fixedly connected to the inner wall of the exhaust pipe body 1. The first fixing plate 15 passes through the fixing rod 14, and is slidably installed with the fixing rod 14. The fixing spring 10 is sleeved on the fixing rod 14, and the fixing spring 10 is fixedly connected between the first fixing plate 15 and the inner wall of the exhaust pipe body 1. The first fixing plate 15 is arc-shaped, and corresponds to the sound-absorbing cotton 4.

[0037] The further fixing assembly is detachably installed in the exhaust pipe body 1, and the further fixing assembly includes a fixing screw 7 and a second fixing plate 8. A thread groove 11 is provided on the inner wall of the exhaust pipe body 1, and the fixing screw 7 is threadedly connected to the thread groove 11, and the second fixing plate 8 is threadedly connected to the fixing screw 7, and the second fixing plate 8 corresponds to the sound-absorbing cotton 4. The second fixing plate 8 is arc-shaped and corresponds to the sound-absorbing cotton 4. A limiting groove 12 is provided on the inner wall of the exhaust pipe body 1, and a mounting plate 5 is fixedly connected to the second fixing plate 8, and a limiting strip 13 corresponding to the limiting groove 12 is fixedly connected to the mounting plate 5. The limiting strip 13 is cylindrical. A knob 6 is fixedly connected to the fixing screw 7. The knob 6 is provided with anti-slip grooves 9.

[0038] There are two of each of the fixing screw 7, the second fixing plate 8, the limiting groove 12, the limiting strip 13, and the mounting plate 5. There are two of each of the first fixing plate 15, the fixing rod 14, and the fixing spring 10.

[0039] Working process: by setting the sound-absorbing cotton 4, it has the effect of sound absorption, thereby reducing noise. At the same time, when the sound-absorbing cotton 4 needs to be replaced or installed, the sound-absorbing cotton 4 can be first placed inside the exhaust pipe body 1, and the first fixing plate 15 is made to correspond to the sound-absorbing cotton 4. Then, under the action of the fixing spring 10, the first fixing plate 15 is pulled so that the first fixing plate 15 clamps and fixes the sound-absorbing cotton 4, thereby preliminarily limiting and fixing the sound-absorbing cotton 4. Then, the fixing screw 7 on the further fixing component is threadedly connected with the thread groove 11, and the knob 6 is turned. Under the action of the anti-slip pattern 9, the friction is increased, thereby facilitating the rotation of the knob 6. Under the action of the limiting strip 13 slidingly installed in the limiting groove 12, it plays the role of limiting the second fixing plate 8, so that the second fixing plate 8 clamps and fixes the sound-absorbing cotton 4, thereby further improving the stability of the sound-absorbing cotton 4 and facilitating disassembly.

[0040] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above invention concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. An automobile exhaust pipe with a silencing function, comprising: Exhaust pipe body; Two fixing plates are provided and fixedly connected to both ends of the exhaust pipe body; A plurality of threaded holes are provided and are evenly arranged on the fixed disk in the circumferential direction; Features: The automobile exhaust pipe with silencing function also includes: The sound-absorbing cotton is movably arranged inside the exhaust pipe body and fits with the inner wall of the exhaust pipe body; A fixing rod, fixedly connected to the inner wall of the exhaust pipe body; A first fixing plate passes through the fixing rod and is slidably mounted with the fixing rod; A fixing spring is sleeved on the fixing rod and fixed between the first fixing plate and the inner wall of the exhaust pipe body; The assembly is further fixed and removably mounted within the exhaust pipe body.

2. The automobile exhaust pipe with silencing function according to claim 1, characterized in that: The further fixing assembly includes a fixing screw and a second fixing plate. A thread groove is provided on the inner wall of the exhaust pipe body, and the fixing screw is threadedly connected to the thread groove. The second fixing plate is threadedly connected to the fixing screw, and the second fixing plate corresponds to the sound-absorbing cotton.

3. The automobile exhaust pipe with silencing function according to claim 2, characterized in that: A limiting groove is provided on the inner wall of the exhaust pipe body, a mounting plate is fixedly connected to the second fixing plate, and a limiting strip corresponding to the limiting groove is fixedly connected to the mounting plate.

4. The automobile exhaust pipe with silencing function according to claim 2, characterized in that: A knob is fixedly connected to the fixing screw rod.

5. The automobile exhaust pipe with silencing function according to claim 4, characterized in that: The knob is provided with anti-slip grooves.

6. The automobile exhaust pipe with silencing function according to claim 3, characterized in that: The fixing screw, the second fixing plate, the limiting groove, the limiting strip and the mounting plate are all provided in pairs.

7. The automobile exhaust pipe with silencing function according to claim 3, characterized in that: The limiting strip is cylindrical.

8. The automobile exhaust pipe with silencing function according to claim 1, characterized in that: The first fixing plate is arc-shaped and corresponds to the sound-absorbing cotton.

9. The automobile exhaust pipe with silencing function according to claim 6, characterized in that: The second fixing plate is arc-shaped and corresponds to the sound-absorbing cotton.

10. The automobile exhaust pipe with silencing function according to claim 1, characterized in that: The first fixing plate, the fixing rod and the fixing spring are each provided with two.

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