A motorcycle muffler tail cover mounting structure

Abstract

The utility model provides a kind of motorcycle muffler tail cover mounting structure, it is related to muffler tail cover technical field, including muffler main body and tail cover main body, the tail cover main body is installed in the end of muffler main body, the end of muffler main body is provided with connecting pedestal, the end of connecting pedestal is provided with the "L" type sliding slot, the tail cover main body is connected on the "L" type sliding slot;Rotary locking structure of the "L" type sliding slot plus clamping block is adopted, and the occlusion design of cooperation wedge block and anti-loose ratchet is designed, to ensure that tail cover and muffler main body are closely adhered, effectively prevent exhaust leakage, reduce noise, sealing ring uses elastic metal material, high temperature resistance and anti-aging, compared with traditional rubber gasket, sealing life is longer.

Description

Technical Field

[0001] This utility model relates to the field of muffler tail cover technology, and in particular to a motorcycle muffler tail cover mounting structure. Background Technology

[0002] The motorcycle muffler tail cap (also known as the exhaust tailpipe or end cap) is a key component at the end of the muffler, and its function is not limited to decoration, but also involves exhaust performance, noise control and durability.

[0003] Currently, some muffler tail covers on the market often suffer from insufficient sealing during use, resulting in ineffective noise suppression and a significantly diminished riding experience. In addition, traditional installation structures are often complex, with cumbersome installation and disassembly operations, making maintenance and replacement difficult. This not only increases user costs but also affects maintenance efficiency to some extent. Furthermore, vibrations during motorcycle operation can easily cause the muffler tail cover to loosen, thereby affecting its sealing and stability and reducing its noise reduction effect. Therefore, we propose a motorcycle muffler tail cover installation structure. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. Currently, some muffler tail covers on the market often suffer from insufficient sealing during use, which results in ineffective noise suppression and significantly diminishes the riding experience. In addition, traditional installation structures are often complex, with cumbersome installation and disassembly operations, making maintenance and replacement difficult. This not only increases the user's operating costs but also affects maintenance efficiency to some extent. Furthermore, vibrations during motorcycle operation can easily cause the muffler tail cover to loosen, thereby affecting its sealing and stability and reducing the noise reduction effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A motorcycle muffler tail cover mounting structure includes a muffler body and a tail cover body. The tail cover body is installed at the end of the muffler body. A connecting base is provided at the end of the muffler body. An "L"-shaped sliding groove is opened at the end of the connecting base. The tail cover body is snapped into the "L"-shaped sliding groove.

[0007] Furthermore, the connecting base is welded to the end of the muffler body, the connecting base is connected to the small diameter section at the outlet of the muffler body, and the connecting base is connected to the large diameter section of the tail cover body.

[0008] Furthermore, the inner edge of the end face of the large-diameter section of the connecting base is provided with anti-loosening ratchet teeth, and the "L"-shaped groove is formed on the outer wall of the end face of the large-diameter section of the connecting base.

[0009] Furthermore, a snap-fit ​​block is provided on the front end face of the tail cover body, the snap-fit ​​block and the "L"-shaped sliding groove are fitted together, and the gap between the snap-fit ​​block and the "L"-shaped sliding groove is 0.2mm.

[0010] Furthermore, an annular groove is provided inside the main body of the tail cap, and a sealing ring is provided in the annular groove. A wedge-shaped block is provided at the front end of the sealing ring, and the wedge-shaped block engages with the groove on the anti-loosening ratchet.

[0011] Furthermore, the end of the tail cover body is trumpet-shaped, and spiral guide fins are provided on the outer wall. The pitch of the spiral guide fins is gradually changing, with denser fins at the inlet and sparser fins at the outlet.

[0012] Furthermore, the interior of the end of the tail cap body is filled with phase change heat storage material, and several radial pressure relief micropores are opened at the bottom of the inner wall of the end of the tail cap body.

[0013] Furthermore, the pressure relief micropores are evenly distributed at a 30° angle on the bottom of the inner wall of the end of the tail cap body.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The rotating locking structure with "L"-shaped sliding groove and snap-fit ​​block, combined with the wedge block and anti-loosening ratchet meshing design, ensures that the tail cover and the muffler body fit tightly, effectively preventing exhaust leakage and reducing noise. The sealing ring is made of elastic metal material, which is heat resistant and anti-aging, and has a longer sealing life compared to traditional rubber gaskets.

[0016] 2. The anti-loosening ratchet mechanism automatically compensates for vibration gaps when the motorcycle is in motion. The pawl locks in one direction to prevent the tail cover from coming loose. Compared with traditional bolt fixing, the risk of loosening is reduced by more than 90%. The wedge block and ratchet groove fit structure further increases radial locking force, ensuring stable sealing even under long-term vibration environment.

[0017] 3. Spiral guide fins accelerate airflow diffusion, reduce exhaust back pressure, and reduce turbulent noise; phase change heat storage material absorbs high-temperature exhaust heat, slows down tail cover temperature rise, and extends material life; 30° angled pressure relief micropores balance internal and external pressure, avoid sharp noise generated by direct airflow injection, and improve noise reduction effect. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of a motorcycle muffler tail cover mounting structure provided by this utility model;

[0019] Figure 2 A schematic diagram of the end face structure of the main body of a motorcycle muffler tail cover mounting structure provided by this utility model.

[0020] Figure 3A schematic diagram of the main structure of a motorcycle muffler tail cover mounting structure provided by this utility model;

[0021] Figure 4 A schematic diagram of the pressure relief micro-hole structure at the end of the tail cover body of a motorcycle muffler tail cover mounting structure provided by this utility model.

[0022] Legend: 1. Muffler body; 2. Tail cover body; 101. Connecting base; 102. "L" shaped groove; 103. Anti-loosening ratchet; 201. Snap-fit ​​block; 202. Annular groove; 203. Sealing ring; 204. Wedge block; 205. Spiral guide fin; 206. Pressure relief micro-hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Example 1

[0028] like Figure 1-4As shown, this utility model provides a technical solution: a motorcycle muffler tail cover mounting structure, including a muffler body 1 and a tail cover body 2. The tail cover body 2 is installed at the end of the muffler body 1. A connecting base 101 is provided at the end of the muffler body 1. An "L"-shaped sliding groove 102 is opened at the end of the connecting base 101. The tail cover body 2 is snapped onto the "L"-shaped sliding groove 102. The "L"-shaped sliding groove 102 eliminates the need for traditional bolt fixing, and can be sealed and locked by rotation.

[0029] Example 2

[0030] like Figure 1-4 As shown, the connecting base 101 is welded to the end of the muffler body 1. The connecting base 101 is connected to the outlet of the muffler body 1 at a small diameter section, and to the tail cover body 2 at a large diameter section. The inner wall edge of the end face of the large diameter section of the connecting base 101 is provided with anti-loosening ratchet teeth 103. An "L"-shaped groove 102 is formed on the outer wall of the end face of the large diameter section of the connecting base 101. A locking block 201 is provided on the front end face of the tail cover body 2. The locking block 201 and the "L"-shaped groove 102 fit together. The gap is 0.2mm, which ensures accurate alignment and avoids sealing failure caused by misalignment during installation. The tail cover body 2 has an annular groove 202 inside, and a sealing ring 203 is set in the annular groove 202. A wedge block 204 is set at the front end of the sealing ring 203. The wedge block 204 fits and engages with the groove on the anti-loosening ratchet 103. The rotation locking structure of the "L"-shaped sliding groove 102 and the locking block 201 is adopted. At the same time, the wedge block 204 and the anti-loosening ratchet 103 are engaged to ensure that the tail cover fits tightly with the muffler body 1, effectively preventing exhaust leakage and reducing noise.

[0031] The end of the tail cover body 2 is trumpet-shaped, and spiral guide fins 205 are provided on the outer wall. The pitch of the spiral guide fins 205 is gradually changing, with denser inlet and sparser outlet. The interior of the end of the tail cover body 2 is filled with phase change heat storage material. Several radial pressure relief microholes 206 are opened at the bottom of the inner wall of the end of the tail cover body 2. The pressure relief microholes 206 are evenly distributed at a 30° angle at the bottom of the inner wall of the end of the tail cover body 2. When the high-temperature airflow passes through the fins, it generates vortex deceleration, and at the same time, the phase change material absorbs heat. The radial pressure relief microholes 206 opened at the bottom of the tail cover balance the internal and external pressure.

[0032] The working process of this utility model is as follows: When using a motorcycle muffler tail cover installation structure, first align the snap-fit ​​block 201 of the tail cover body 2 with the "L"-shaped slide groove 102 at the end of the muffler body 1, insert it axially and rotate it 15°-20° so that the snap-fit ​​block 201 slides along the horizontal section of the slide groove until the wedge block 204 engages with the groove of the anti-loosening ratchet 103 to complete the radial locking.

[0033] When the motorcycle is in motion, the high-temperature exhaust airflow enters the tail cover body 2. The spiral guide fins 205 guide the airflow to slow down and reduce noise. At the same time, the phase change heat storage material absorbs heat. The anti-loosening ratchet 103 automatically engages under vibration to prevent the tail cover from loosening and ensures sealing.

[0034] Part of the airflow is discharged through the 30° angled pressure relief micro-hole 206 to balance the internal and external pressures and avoid excessive back pressure; the phase change material continuously stores heat, and the fins enhance heat dissipation and extend the service life of the tail cover.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A motorcycle muffler tail cover mounting structure, comprising a muffler body (1) and a tail cover body (2), wherein the tail cover body (2) is mounted on the end of the muffler body (1), characterized in that: The muffler body (1) has a connecting base (101) at its end, and the connecting base (101) has an "L" shaped groove (102) at its end. The tail cover body (2) is snapped into the "L" shaped groove (102).

2. The motorcycle muffler tail cover mounting structure according to claim 1, characterized in that: The connecting base (101) is welded to the end of the muffler body (1). The connecting base (101) is connected to the small diameter section at the outlet of the muffler body (1) and the large diameter section of the tail cover body (2).

3. The motorcycle muffler tail cover mounting structure according to claim 2, characterized in that: The inner edge of the end face of the large-diameter section of the connecting base (101) is provided with anti-loosening ratchet teeth (103), and the "L"-shaped groove (102) is opened on the outer wall of the end face of the large-diameter section of the connecting base (101).

4. The motorcycle muffler tail cover mounting structure according to claim 3, characterized in that: A snap-fit ​​block (201) is provided on the front end surface of the tail cover body (2). The snap-fit ​​block (201) fits into the "L"-shaped slide groove (102). The gap between the snap-fit ​​block (201) and the "L"-shaped slide groove (102) is 0.2mm.

5. The motorcycle muffler tail cover mounting structure according to claim 3, characterized in that: The tail cap body (2) has an annular groove (202) inside, and a sealing ring (203) is provided in the annular groove (202). A wedge block (204) is provided at the front end of the sealing ring (203), and the wedge block (204) engages with the groove on the anti-loosening ratchet (103).

6. The motorcycle muffler tail cover mounting structure according to claim 1, characterized in that: The end of the tail cover body (2) is trumpet-shaped, and a spiral guide fin (205) is provided on the outer wall. The pitch of the spiral guide fin (205) is gradually changing, with a denser inlet and a sparser outlet.

7. The motorcycle muffler tail cover mounting structure according to claim 1, characterized in that: The end of the tail cap body (2) is filled with phase change heat storage material, and a number of radial pressure relief microholes (206) are opened at the bottom of the inner wall of the end of the tail cap body (2).

8. The motorcycle muffler tail cover mounting structure according to claim 7, characterized in that: The pressure relief micropores (206) are evenly distributed at a 30° angle on the bottom of the inner wall of the end of the tail cap body (2).

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