A mounting structure for a motorcycle muffler guard

Abstract

The present invention provides a mounting structure for a motorcycle muffler guard, which belongs to the technical field of motorcycles. It solves the problem in the prior art that the guard of the existing motorcycle muffler has a poor anti-scalding effect. The mounting structure of the motorcycle muffler guard includes a fixed bracket fixedly connected to the outer wall of the muffler and a connecting bracket fixedly connected to the inner wall of the guard. The fixed bracket is provided with a slide groove, and the connecting bracket can slide into the slide groove from one end of the fixed bracket so that the slide groove positions the connecting bracket. The fixed bracket is also provided with a fastener that can connect the fixed bracket and the connecting bracket after the connecting bracket slides into the slide groove. The present invention greatly improves the anti-scalding effect of the guard, and at the same time has the advantage of good stability in the installation of the guard.

Description

Technical Field

[0001] The invention belongs to the technical field of motorcycles and relates to a mounting structure of a motorcycle muffler guard. Background Art

[0002] The motorcycle muffler is an indispensable part of the motorcycle. The muffler can make the airflow discharged from the engine pass through the porous pipe and baffle in the muffler and repeatedly revolve around, so that the noise gradually attenuates and achieves the purpose of silencing. When the motorcycle is running, the surface of the muffler has a high temperature. Therefore, in order to prevent the rider from being burned by the high-temperature muffler, a protective cover must be installed on the surface of the muffler.

[0003] For example, a motorcycle noise reduction device disclosed in a Chinese patent document (application number: CN200910104333.8; publication number: CN101603448) includes an exhaust pipe, a muffler, a guard plate, a guard frame and a guard cover, wherein the exhaust pipe is composed of a curved section at the front, a straight section in the middle and an inclined section at the rear, the muffler is composed of a cone head section and a straight tube section, the cone head section of the muffler is connected to the inclined section of the exhaust pipe, a guard plate is fixedly arranged on the top of the front section in the straight section of the exhaust pipe, a guard frame is arranged on the outer side of the connection between the inclined section of the exhaust pipe and the cone head section of the muffler, and a guard cover is arranged on the outer side of the straight tube section of the muffler. The motorcycle noise reduction device has the following deficiencies in actual use: 1. The shield and the muffler are connected by a screw sleeve and a screw. The temperature of the muffler will be transferred to the shield through the screw sleeve and the screw. The heat dissipation area of ​​the screw sleeve and the screw is small, and good heat dissipation cannot be achieved. This will cause the shield temperature to be high after the motorcycle runs for a long time, causing the legs of the rider to be baked at high temperature and affecting comfort, and even scalding. Moreover, the exposed screws are directly connected to the screw sleeve, so the temperature of the screws is very high, which will cause the legs of the rider or children to touch the screws out of curiosity and cause scalding. Therefore, the above factors lead to the problem that the shield structure of the muffler has a poor anti-scalding effect of the shield; 2. In the whole motorcycle, the muffler and its shield have a significant visual effect in the eyes of users and consumers, so the aesthetics of the muffler and its shield largely affect the overall aesthetics of the motorcycle. However, since the motorcycle noise reduction device needs at least two screws to pass through the shield to fix the shield when installing the shield, the screws are exposed on the outer wall of the shield, which greatly reduces the aesthetics of the motorcycle. At present, based on the problem of poor anti-scalding effect of muffler guard, the conventional technical means to solve it are:

[0004] 1. Reduce the conduction efficiency: Set a heat-insulating medium, such as a rubber pad, rubber sleeve, etc., on the connecting part between the shield and the muffler to reduce the conduction of heat by relying on the effect of the heat-insulating medium to reduce the temperature of the shield;

[0005] 2. Increase the conduction distance: By increasing the length of the connecting parts between the shield and the muffler, on the basis of ensuring the rationality of the installation space, appropriately increase the distance between the shield and the muffler, thereby reducing the temperature of the shield;

[0006] 3. A recessed portion is provided on the shield corresponding to the installation position of the screw, so that the head of the screw is embedded in the recessed portion to avoid direct contact between human skin and the screw. Summary of the invention

[0007] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose an installation structure for a motorcycle muffler guard. The present invention solves the problem that the existing motorcycle muffler guard has a poor anti-scalding effect and ensures the convenience of guard installation.

[0008] The objective of the present invention can be achieved through the following technical solutions: a mounting structure for a motorcycle muffler guard cover, the mounting structure comprising a fixing bracket fixedly connected to the outer wall of the muffler, characterized in that the mounting structure also comprises a connecting bracket fixedly connected to the inner wall of the guard cover, the fixing bracket is provided with a slide groove, the connecting bracket can slide into the slide groove from one end of the fixing bracket so that the slide groove positions the connecting bracket, and the fixing bracket is also provided with a fastener that can fix the fixing bracket and the connecting bracket together after the connecting bracket slides into the slide groove.

[0009] In the mounting structure of the muffler guard of the motorcycle, a fixed bracket is arranged on the outer wall of the muffler, and a connecting bracket is arranged on the inner wall of the guard to be connected to the fixed bracket, and the fixed bracket and the connection are fixedly connected by fasteners. On the one hand, such a structure enables the fasteners to be located on the inner side of the guard, solving the problem that the fasteners in the existing guard mounting structure are exposed to the outside and have a high temperature, which makes it easy for the fasteners to burn the rider; on the other hand, the fixed bracket and the connecting bracket form a double bracket structure, and compared with the conventional guard mounting structure, the heat dissipation area is improved, so that the heat of the muffler can be better dissipated on the fixed bracket and the connecting bracket, and the heat conducted to the guard can be effectively reduced, so that the guard always maintains a low temperature, which greatly improves the anti-scalding effect of the guard.

[0010] However, since the distance between the shield and the muffler is usually not too large, that is to say, the operating space for installing the connecting bracket is limited, it is necessary to solve the problem of installation difficulties due to the limitation of the installation space. To this end, the applicant sets a slide groove on the fixed bracket so that when installing the connecting bracket, the connecting bracket can be slid into the slide groove from one end of the fixed bracket. The process of operating the connecting bracket to slide into the slide groove has a low requirement for the installation space. Moreover, the slide groove cooperates with the connecting bracket so that the slide groove can form a preliminary positioning for the connecting bracket during the installation process, which can facilitate the installation of the fasteners to fix the connecting bracket, thereby making the shield installation more convenient.

[0011] In the above-mentioned installation structure of the motorcycle muffler shield, the fixed bracket has a plate-shaped base plate, the slide groove is arranged on the base plate, the connecting bracket has a plug-in board that fits with the base plate, and the connecting bracket cooperates with the slide groove through the plug-in board. By arranging the base plate on the fixed bracket and the plug-in board that fits with the base plate on the connecting bracket, the heat dissipation area is greatly increased, so that the heat conducted to the shield is greatly reduced, so that the shield has a lower temperature. At the same time, the base plate and the plug-in board fit together and the plug-in board cooperates with the slide groove, which plays a role in positioning the connecting bracket, which not only facilitates the installation of the connecting bracket but also ensures the stability of the installation.

[0012] In the above-mentioned mounting structure of the motorcycle muffler shield, there is a gap between the base plate and the muffler, and between the plug plate and the shield. When the motorcycle is running, the generated airflow always flows in the gap between the base plate and the muffler, and between the plug plate and the shield. Therefore, on the basis of increasing the heat dissipation area, the flow of airflow can also accelerate the removal of heat from the fixing bracket and the connecting bracket, ensuring that the shield always has a low temperature, greatly improving the anti-scalding effect of the shield.

[0013] In the above-mentioned installation structure of the motorcycle muffler guard, the base plate and the plug-in board are both in the shape of rectangular plates, and the top and bottom edges of the base plate are respectively provided with guide strips in the shape of long strips and L-shaped cross sections, and the above-mentioned slide grooves are formed between each guide strip and the side wall of the base plate facing the plug-in board, the notch of the slide groove located at the top edge of the base plate faces downward and the top edge of the plug-in board is plugged into the slide groove, and the notch of the slide groove located at the bottom edge of the base plate faces upward and the bottom plate of the plug-in board is plugged into the slide groove. With such a design, the plug-in board can slide into the slide groove from one end of the base plate, thereby ensuring the convenience of installing the connecting bracket even when the installation space is limited. Moreover, with the design of the upper and lower slide grooves, the connecting bracket is initially positioned after sliding into the slide groove, thereby facilitating the installation of fasteners at a later stage.

[0014] In the above-mentioned motorcycle muffler shield mounting structure, the two ends of the plug-in board are respectively vertically connected with connecting plates, and one end of each connecting plate away from the plug-in board is welded to the inner wall of the shield. The connecting plate is welded to the inner wall of the shield, which is not only convenient to manufacture and stable in connection, but also does not require fasteners to be set between the shield and the connecting bracket for connection, thus avoiding the situation where the fasteners are exposed on the outer wall of the shield, making the shield more beautiful as a whole.

[0015] In the above-mentioned installation structure of the motorcycle muffler guard, one end of the base plate is vertically connected to a mounting plate, the mounting plate is fitted with one of the connecting plates of the fixed bracket, and the fastener passes through the mounting plate and the connecting plate fitted with the mounting plate and is threadedly connected with a nut. In the process of the connecting bracket sliding into the slide groove, when the connecting plate slides to fit the mounting plate, it means that the connecting bracket is installed in place. Therefore, by setting the mounting plate to fit the connecting plate, not only the installation process is more convenient, but also the connection of the fastener is convenient, thereby improving the stability of the installation.

[0016] In the above-mentioned installation structure of the motorcycle muffler guard, the guide strip includes a horizontal limit portion connected to the base plate and a vertical limit portion connected to the horizontal limit portion, the horizontal limit portion is perpendicular to the base plate and the vertical limit portion is parallel to the base plate, the inner wall of the vertical limit portion abuts against the side wall of the plug-in board facing the guard, and the inner wall of the horizontal limit portion abuts against the end face of the top edge or bottom edge of the plug-in board. Through such a design, after the connecting bracket slides into the slide groove, the connecting bracket is positioned in two dimensions in the height direction of the vehicle body and the left and right directions of the vehicle body, which can facilitate the connection of the fasteners. Moreover, the design of the structure makes it possible to achieve stable installation of the connecting bracket by installing only one fastener. In the case of limited installation space, reducing the number of fasteners installed can greatly improve the convenience and efficiency of installation.

[0017] In the above-mentioned installation structure of the motorcycle muffler shield, the length of the guide bar is greater than or equal to one-half of the length of the base plate, and there is a gap between the mounting plate and the end face of the guide bar facing the mounting plate. Such a design allows a larger matching area between the guide bar and the connecting bracket, which can ensure the stability of the installation of the connecting bracket, and further ensure the stability of the shield installation. There is a gap between the mounting plate and the end face of the guide bar facing the mounting plate, which facilitates the insertion of a tool so that the nut can be rotated using the tool, thereby improving the convenience of shield installation.

[0018] In the above-mentioned mounting structure of the motorcycle muffler guard, the four corners of the base plate are respectively provided with connecting feet, and the connecting feet are welded to the outer wall of the muffler. Through such a design, the fixing bracket structure is stable and the installation stability is also good.

[0019] In the above-mentioned motorcycle muffler shield mounting structure, the connecting bracket and the fixing bracket are both made of metal material. The two brackets are made of metal material, so that the connecting bracket can be welded with the shield, so that the connecting bracket and the shield do not need to be connected by fasteners, avoiding the situation where the fasteners are exposed on the outer wall of the shield and affect the aesthetics. At the same time, the connecting bracket and the fixing bracket made of metal material also ensure that the two brackets have a relatively high structural strength, so that the shield can be installed stably.

[0020] Compared with the prior art, the mounting structure of the motorcycle muffler guard has the following advantages:

[0021] 1. This connection structure realizes the installation of the shield by setting a connecting bracket and a fixed bracket. The heat dissipation of the connecting bracket and the fixed bracket can greatly increase the heat dissipation area, ensure that the shield always has a low temperature, and greatly improve the anti-scalding effect of the shield.

[0022] 2. The shield is installed by connecting the bracket and the fixing bracket, and fasteners are provided to connect the connecting bracket and the fixing bracket, so that the fasteners are located on the inner side of the shield, avoiding the situation where the fasteners are exposed on the outer wall of the shield, making the shield look good.

[0023] 3. The fixed bracket is provided with a slide groove to cooperate with the connecting bracket, so that the connecting bracket and the fixed bracket only need to be installed with one fastener. Therefore, the present invention has the advantages of quick and convenient installation of the shield and good stability of the shield installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0025] Figure 2 It is a side view of the present invention.

[0026] Figure 3 yes Figure 2 Partial cross-sectional view of AA.

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the connection bracket and the shield in the present invention.

[0028] Figure 5 It is a three-dimensional structural schematic diagram of the muffler and the fixing bracket in the present invention.

[0029] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the fixing bracket in the present invention.

[0031] In the figure, 1. muffler; 2. fixing bracket; 21. slide groove; 22. base plate; 23. guide strip; 231. horizontal limit part; 232. vertical limit part; 24. mounting plate; 25. connecting foot; 3. protective cover; 4. connecting bracket; 41. plug-in board; 42. connecting plate; 5. fastener; 6. nut. DETAILED DESCRIPTION

[0032] The following is a specific embodiment of the present invention and combined with the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to this embodiment.

[0033] like Figures 1 to 3 As shown, the mounting structure of the motorcycle muffler guard shield includes a fixing bracket 2 fixedly connected to the outer wall of the muffler 1 and a connecting bracket 4 fixedly connected to the inner wall of the guard shield 3. The connecting bracket 4 and the fixing bracket 2 are both made of metal material. A slide groove 21 is provided on the fixing bracket 2. The connecting bracket 4 can slide into the slide groove 21 from one end of the fixing bracket 2 so that the slide groove 21 positions the connecting bracket 4. The fixing bracket 2 is also provided with a fastener 4 that can connect the fixing bracket 2 and the connecting bracket 4 after the connecting bracket 4 slides into the slide groove 21.

[0034] Specifically, Figure 3 and Figure 4 As shown, the connecting bracket 4 includes a plug-in board 41 , and connecting boards 42 are vertically connected to both ends of the plug-in board 41 . The plug-in board 41 is in the shape of a rectangular plate, and one end of each connecting board 42 away from the plug-in board 41 is welded to the inner wall of the shield 3 .

[0035] like Figures 5 to 7 As shown, the fixing bracket 2 has a plate-shaped base plate 22, the base plate 22 is a rectangular plate, and connecting feet 25 are respectively provided at the four corners of the base plate 22, and the connecting feet 25 are welded to the outer wall of the muffler 1, so as to realize the fixed connection between the fixing bracket 2 and the muffler 1. Figure 3 As shown, the connecting bracket 4 cooperates with the slide slot 21 through the plug-in board 41, and the plug-in board 41 fits with the base plate 22, and there is a gap between the base plate 22 and the muffler 1, and between the plug-in board 41 and the shield 3. Through such a design, the connecting bracket 4 and the fixed bracket 2 can dissipate heat together, and the heat dissipation area is greatly improved. In addition, when the motorcycle is running, the airflow generated always flows in the gap between the base plate 22 and the muffler 1 and the gap between the plug-in board 41 and the shield 3. Therefore, on the basis of increasing the heat dissipation area, the flow of the airflow can also accelerate the removal of heat from the fixed bracket 2 and the connecting bracket 4, ensuring that the shield 3 always has a low temperature, which greatly improves the anti-scalding effect of the shield 3.

[0036] like Figure 1 and Figure 2As shown, one end of the base plate 22 is vertically connected to a mounting plate 24, the mounting plate 24 is fitted with one of the connecting plates 42 of the fixed bracket 2, and the fastener 4 passes through the mounting plate 24 and the connecting plate 42 fitted with the mounting plate 24 and is threadedly connected with a nut 6. During the installation of the connecting bracket 4, the connecting bracket 4 is slid into the slide groove 21 and slid until the connecting plate 42 is fitted with the mounting plate 24, and then the fastener 4 is sequentially passed through the through-hole connection nut 6 on the mounting plate 24 and the connecting plate 42, and the nut 6 is tightened to achieve the fixing of the fixed bracket 2 and the connecting bracket 4. This design solves the problem that the fastener 4 in the existing mounting structure of the shield 3 is exposed to the outside and the temperature is high, which makes the fastener 4 easy to burn the rider.

[0037] Combination Figure 3 , Figure 5 and Figure 6 As shown, in the fixed bracket 2, the top and bottom edges of the base plate 22 are respectively provided with guide strips 23 in the form of long strips and with L-shaped cross sections, and the above-mentioned slide grooves 21 are formed between each guide strip 23 and the side wall of the base plate 22 facing the plug-in board 41, the notch of the slide groove 21 located at the top edge of the base plate 22 faces downward and the top edge of the plug-in board 41 is plugged into the slide groove 21, and the notch of the slide groove 21 located at the bottom edge of the base plate 22 faces upward and the bottom plate of the plug-in board 41 is plugged into the slide groove 21. Specifically, the guide bar 23 includes a horizontal limiter 231 connected to the base plate 22 and a vertical limiter 232 connected to the horizontal limiter 231. The horizontal limiter 231 is perpendicular to the base plate 22 and the vertical limiter 232 is parallel to the base plate 22. The inner wall of the vertical limiter 232 abuts against the side wall of the plug-in board 41 facing the shield 3, and the inner wall of the horizontal limiter 231 abuts against the end surface of the top edge or bottom edge of the plug-in board 41. Through such a design, the plug-in board 41 can slide into the slide groove 21 from one end of the base plate 22, and after the connecting bracket 4 slides into the slide groove 21, the connecting bracket 4 is positioned in two dimensions in the vehicle body height direction and the left and right direction of the vehicle body, which can facilitate the connection of the fastener 4. Moreover, the design of the structure makes it possible to achieve stable installation of the connecting bracket 4 by installing only one fastener 4. In the case of limited installation space, reducing the number of fasteners 4 installed can greatly improve the convenience and efficiency of installation.

[0038] Further, such as Figure 1As shown, the length of the guide bar 23 is greater than half of the length of the base plate 22, so that there is a larger matching area between the guide bar 23 and the connecting bracket 4, which can ensure the stability of the installation of the connecting bracket 4, and further ensure the stability of the installation of the shield 3. In the actual manufacturing process, the length of the guide bar 23 can also be appropriately increased or decreased, such as setting the length of the guide bar 23 to half the length of the base plate 22. In order to facilitate the insertion of the tool so as to use the tool to rotate the nut 6, there is a gap between the mounting plate 24 and the end face of the guide bar 23 facing the mounting plate 24.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0040] Although this article uses more terms such as 1, muffler; 2, fixing bracket; 21, slide groove; 22, base plate; 23, guide strip; 231, horizontal limiter; 232, vertical limiter; 24, mounting plate; 25, connecting foot; 3, shield; 4, connecting bracket; 41, plug board; 42, connecting plate; 5, fastener; 6, nut, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A mounting structure for a motorcycle muffler guard, the mounting structure comprising a fixing bracket (2) fixedly connected to the outer wall of the muffler (1), characterized in that: The mounting structure also includes a connecting bracket (4) fixedly connected to the inner side wall of the shield (3); a slide groove (21) is provided on the fixing bracket (2); the connecting bracket (4) can slide into the slide groove (21) from one end of the fixing bracket (2) so that the slide groove (21) positions the connecting bracket (4); and a fastener (5) is also provided on the fixing bracket (2) so that the fixing bracket (2) and the connecting bracket (4) are fixedly connected after the connecting bracket (4) slides into the slide groove (21).

2. The mounting structure of the motorcycle muffler guard according to claim 1, characterized in that: The fixed bracket (2) has a plate-shaped base plate (22), the slide groove (21) is arranged on the base plate (22), the connecting bracket (4) has a plug-in board (41) that fits the base plate (22), and the connecting bracket (4) cooperates with the slide groove (21) through the plug-in board (41).

3. The mounting structure of the motorcycle muffler guard according to claim 2, characterized in that: There is a gap between the base plate (22) and the muffler (1), and between the plug-in plate (41) and the shield (3).

4. The mounting structure of the motorcycle muffler guard according to claim 2 or 3, characterized in that: The base plate (22) and the plug board (41) are both in the shape of rectangular plates. The top and bottom edges of the base plate (22) are respectively provided with guide strips (23) in the shape of long strips and having an L-shaped cross section. The above-mentioned slide groove (21) is formed between each guide strip (23) and the side wall of the base plate (22) facing the plug board (41). The notch of the slide groove (21) located at the top edge of the base plate (22) faces downward and the top edge of the plug board (41) is plugged into the slide groove (21). The notch of the slide groove (21) located at the bottom edge of the base plate (22) faces upward and the bottom plate of the plug board (41) is plugged into the slide groove (21).

5. The mounting structure of the motorcycle muffler guard according to claim 4, characterized in that: The two ends of the plug board (41) are respectively vertically connected with connecting plates (42), and one end of each connecting plate (42) away from the plug board (41) is welded to the inner side wall of the protective cover (3).

6. The mounting structure of the motorcycle muffler guard according to claim 5, characterized in that: One end of the base plate (22) is vertically connected to a mounting plate (24), the mounting plate (24) is fitted with one of the connecting plates (42) of the fixed bracket (2), and the fastener (5) passes through the mounting plate (24) and the connecting plate (42) fitted with the mounting plate (24) and is threadedly connected with a nut (6).

7. The mounting structure of the motorcycle muffler guard according to claim 4, characterized in that: The guide bar (23) comprises a horizontal limiting portion (231) connected to the base plate (22) and a vertical limiting portion (232) connected to the horizontal limiting portion (231); the horizontal limiting portion (231) is perpendicular to the base plate (22) and the vertical limiting portion (232) is parallel to the base plate (22); the inner wall of the vertical limiting portion (232) abuts against the side wall of the plug board (41) facing the shield (3); and the inner wall of the horizontal limiting portion (231) abuts against the end face of the top edge or the bottom edge of the plug board (41).

8. The mounting structure of the motorcycle muffler guard according to claim 6, characterized in that: The length of the guide strip (23) is greater than or equal to half the length of the base plate (22), and there is a gap between the mounting plate (24) and the end surface of the guide strip (23) facing the mounting plate (24).

9. The mounting structure of the motorcycle muffler guard according to claim 2 or 3, characterized in that: Connecting feet (25) are respectively provided at the four corners of the base plate (22), and the connecting feet (25) are welded to the outer wall of the muffler (1).

10. The mounting structure of the motorcycle muffler guard according to claim 1, 2 or 3, characterized in that: The connecting bracket (4) and the fixing bracket (2) are both made of metal material.

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