Automobile exhaust pipe

Abstract

The utility model provides an automobile exhaust pipe, which relates to the technical field of automobile exhaust pipes, and comprises an exhaust pipe, one end of the exhaust pipe is fixedly communicated with a catalytic converter, and one end of the catalytic converter far away from the exhaust pipe is fixedly communicated with a tail pipe; the surface of the catalytic converter is sleeved with a protective shell, a limiting structure is arranged in the protective shell, and the top of the limiting structure is fixedly connected with an automobile bottom plate. Through the arrangement of the catalytic converter, the exhaust pipe, the tail pipe, the protective shell and the limiting structure, the catalytic converter can effectively convert harmful substances in exhausted gas, reduce pollution of vehicle emission to the environment and improve the environmental protection performance, the protective shell can protect the catalytic converter and prevent the catalytic converter from being collided or damaged in the driving process, and the service life of the exhaust pipe is prolonged. The service life of the catalytic converter is prolonged, and the problem that an existing automobile exhaust pipe is possibly physically damaged due to uneven roads, gravel collision and the like in the automobile running process is solved.

Description

Technical Field

[0001] This utility model relates to the field of automotive exhaust pipe technology, and more particularly to an automotive exhaust pipe. Background Technology

[0002] The exhaust pipe is part of a vehicle's exhaust system, primarily responsible for expelling the exhaust gases produced by engine combustion outside the vehicle. It typically consists of several parts, including the exhaust manifold, catalytic converter, intermediate pipe, and tailpipe. The exhaust manifold connects to each cylinder of the engine, collecting exhaust gases and directing them into the exhaust system. The catalytic converter reduces harmful substances in the exhaust gases, such as nitrogen oxides and hydrocarbons. The intermediate pipe connects the catalytic converter and the tailpipe, which is the final conduit through which the exhaust gases exit the vehicle.

[0003] In existing technologies, automobile exhaust emissions require the use of automobile exhaust pipes. However, existing automobile exhaust pipes may suffer physical damage during vehicle operation due to uneven roads, gravel impacts, etc. Therefore, a protective automobile exhaust pipe is needed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a car exhaust pipe that can facilitate the protection of the car exhaust pipe, so as to solve the problem that the existing car exhaust pipe may be physically damaged by uneven roads, gravel impacts, etc. during the car driving process.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an automobile exhaust pipe, including an exhaust pipe, one end of which is fixedly connected to a catalytic converter, and the end of the catalytic converter away from the exhaust pipe is fixedly connected to a tailpipe;

[0006] The surface of the catalytic converter is covered with a protective shell, and the inside of the protective shell is provided with a limiting structure. The top of the limiting structure is fixedly connected to the vehicle floor.

[0007] Furthermore, the limiting structure includes a fixing seat located inside the protective shell. The top of the fixing seat penetrates the protective shell and extends to the top of the protective shell. A first screw is provided inside the fixing seat, and the threaded end of the first screw penetrates the fixing seat and extends to the interior of the vehicle floor. A groove is provided at the bottom of the surface of the fixing seat, and a clamp is engaged inside the groove. The top of the clamp engages with the bottom of the protective shell. A positioning structure is provided inside the clamp, and the top of the positioning structure engages with the bottom of the fixing seat.

[0008] Furthermore, the positioning structure includes a connecting seat, the surface of which is fixedly connected to the interior of the clamp, a guide rod is provided inside the connecting seat, a positioning block is fixedly connected to the top of the guide rod, and the surface of the positioning block is used in conjunction with the bottom of the fixing seat.

[0009] Furthermore, the bottom of the fixed base is provided with an opening for use with the positioning block, and the bottom of the guide rod is fixedly connected with a pull block for pulling.

[0010] Furthermore, a return spring is sleeved on the surface of the guide rod, and the return spring is located between the positioning block and the connecting seat.

[0011] Furthermore, the surface of the protective shell is provided with heat dissipation holes, and the number of heat dissipation holes is several and they are evenly distributed.

[0012] Furthermore, the inner ring of the protective shell is provided with a flexible support pad, and a second screw is provided inside the flexible support pad. The threaded end of the second screw passes through the flexible support pad and extends into the interior of the protective shell.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model, by setting up a catalytic converter, exhaust pipe, tailpipe, protective shell, and limiting structure, enables the catalytic converter to effectively convert harmful substances in exhaust gas, reduce vehicle emissions pollution to the environment, and improve environmental performance. The protective shell can protect the catalytic converter from collisions or damage during driving, extending its service life. The top of the limiting structure is fixedly connected to the car floor, further enhancing the stability of the catalytic converter, preventing it from shaking or shifting during operation, and ensuring the normal operation of the catalytic converter.

[0015] 2. By setting a limiting structure, this utility model can effectively and securely install the protective shell on the car floor. The design of the fixing seat allows the first screw to easily penetrate and fix to the car floor, ensuring the stability of the structure. The groove on the surface of the fixing seat and the snap-fit ​​design of the clamp, as well as the cooperation between the clamp and the bottom of the protective shell, further enhance the stability of the protective shell. The setting of the positioning structure allows the clamp and the fixing seat to be accurately positioned, avoiding loosening or misalignment, thereby improving the reliability of the entire structure.

[0016] 3. By setting up a positioning structure, this utility model can significantly improve the connection stability and accuracy between the connecting seat and the clamp and the fixed seat. The design of the guide rod allows the positioning block to smoothly and accurately enter the bottom of the fixed seat, ensuring the positioning accuracy during the assembly process and reducing assembly errors. The fixed connection between the connecting seat and the clamp inside enhances the overall firmness, making the whole structure more reliable during use and less prone to loosening or damage.

[0017] 4. By setting an opening and a pull block, this utility model can facilitate the precise positioning and stable installation of the guide rod. At the same time, the design of the pull block allows the guide rod to be easily pulled and adjusted when needed, improving the practicality and convenience of the structure.

[0018] 5. By incorporating a reset spring, this utility model enables the structure to quickly return to its original position after being subjected to force, thereby improving the stability and reliability of the structure.

[0019] 6. By setting heat dissipation holes, this utility model can effectively improve the heat dissipation efficiency of the catalytic converter and avoid damage to the exhaust pipe, catalytic converter and tailpipe due to excessively high exhaust air temperature.

[0020] 7. By setting a flexible support pad and a second screw, this utility model can effectively increase the support area inside the protective shell and improve the support stability. At the same time, its flexibility can also play a role in shock absorption and buffering, protecting the catalytic converter from external impacts. The setting of the second screw further enhances the connection strength between the protective shell and the protected object, ensuring that the two are tightly connected and not easy to loosen, thus improving the stability and safety of the overall structure. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 A 3D view of the protective shell;

[0024] Figure 3 This is a sectional view of the fixed base;

[0025] Figure 4 This is a cross-sectional view of the clamp;

[0026] Figure 5 This is a three-dimensional view of the flexible support pad and the second screw.

[0027] In the diagram: 1. Exhaust pipe; 2. Catalytic converter; 3. Tailpipe; 4. Protective shell; 5. Mounting base; 6. First screw; 7. Groove; 8. Clamp; 9. Connecting seat; 10. Guide rod; 11. Positioning block; 12. Opening; 13. Pull block; 14. Return spring; 15. Heat dissipation hole; 16. Flexible support pad; 17. Second screw. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of this utility model.

[0030] A car exhaust pipe includes an exhaust pipe 1, one end of which is fixedly connected to a catalytic converter 2, and the end of the catalytic converter 2 away from the exhaust pipe 1 is fixedly connected to a tailpipe 3.

[0031] The surface of the catalytic converter 2 is covered with a protective shell 4, and the inside of the protective shell 4 is provided with a limiting structure. The top of the limiting structure is fixedly connected to the vehicle floor.

[0032] Please see Figure 2 , Figure 3 , Figure 4 and Figure 5 , Figure 2 A 3D view of the protective shell; Figure 3 This is a sectional view of the fixed base; Figure 4 This is a cross-sectional view of the clamp; Figure 5 This is a three-dimensional view of the flexible support pad and the second screw.

[0033] The limiting structure includes a fixing seat 5, which is located inside the protective shell 4. The top of the fixing seat 5 penetrates through the protective shell 4 and extends to the top of the protective shell 4. A first screw 6 is provided inside the fixing seat 5, and the threaded end of the first screw 6 penetrates through the fixing seat 5 and extends into the interior of the vehicle floor. A groove 7 is provided at the bottom of the surface of the fixing seat 5, and a clamp 8 is engaged inside the groove 7. The top of the clamp 8 cooperates with the bottom of the protective shell 4. A positioning structure is provided inside the clamp 8, and the top of the positioning structure cooperates with the bottom of the fixing seat 5. This effectively and securely installs the protective shell 4 onto the vehicle floor. The design of the fixing seat 5 allows the first screw 6 to easily penetrate and be fixed to the vehicle floor, ensuring the stability of the structure. The engagement design of the groove 7 on the surface of the fixing seat 5 and the clamp 8, as well as the cooperation between the clamp 8 and the bottom of the protective shell 4, further enhance the stability of the protective shell 4. The positioning structure allows for precise positioning between the clamp 8 and the fixing seat 5, avoiding loosening or misalignment, thereby improving the reliability of the entire structure.

[0034] The positioning structure includes a connecting seat 9, the surface of which is fixedly connected to the inside of the clamp 8. A guide rod 10 is provided inside the connecting seat 9, and a positioning block 11 is fixedly connected to the top of the guide rod 10. The surface of the positioning block 11 cooperates with the bottom of the fixed seat 5, which can significantly improve the connection stability and accuracy between the connecting seat 9, the clamp 8, and the fixed seat 5. The design of the guide rod 10 allows the positioning block 11 to smoothly and accurately enter the bottom of the fixed seat 5, ensuring the positioning accuracy during assembly and reducing assembly errors. The fixed connection between the connecting seat 9 and the inside of the clamp 8 enhances the overall robustness, making the entire structure more reliable during use and less prone to loosening or damage.

[0035] The bottom of the fixed base 5 has an opening 12 for use with the positioning block 11. The bottom of the guide rod 10 is fixedly connected to a pull block 13 for pulling, which facilitates the precise positioning and stable installation of the guide rod 10. At the same time, the design of the pull block 13 makes it easy to pull and adjust the guide rod 10 when needed, improving the practicality and convenience of the structure.

[0036] A return spring 14 is sleeved on the surface of the guide rod 10. The return spring 14 is located between the positioning block 11 and the connecting seat 9, which enables the structure to quickly return to its original position after being subjected to force, thereby improving the stability and reliability of the structure.

[0037] The protective shell 4 has several heat dissipation holes 15 on its surface. These holes are evenly distributed and can effectively improve the heat dissipation efficiency of the catalytic converter 2, thus preventing damage to the exhaust pipe 1, catalytic converter 2, and tailpipe 3 due to excessively high exhaust air temperature.

[0038] The inner ring of the protective shell 4 is provided with a flexible support pad 16, and a second screw 17 is provided inside the flexible support pad 16. The threaded end of the second screw 17 passes through the flexible support pad 16 and extends into the interior of the protective shell 4. The flexible support pad 16 can effectively increase the support area inside the protective shell 4 and improve the support stability. At the same time, its flexible characteristics can also play a role in shock absorption and buffering, protecting the catalytic converter 2 from external impacts. The setting of the second screw 17 further enhances the connection strength between the protective shell 4 and the protected object, ensuring that the two are tightly connected and not easy to loosen, thus improving the stability and safety of the overall structure.

[0039] Working Principle: To effectively protect and securely install the catalytic converter 2, during operation, the catalytic converter 2 receives exhaust gas from the exhaust pipe 1, purifies it, and then discharges the treated exhaust gas through the tailpipe 3. To protect the catalytic converter 2 from external impacts, a protective shell 4 is specially designed. The protective shell 4 is securely installed on the vehicle floor via a limiting structure. The fixing seat 5 in the limiting structure is penetrated and fixed to the vehicle floor by the first screw 6, ensuring the stability of the structure. The groove 7 on the surface of the fixing seat 5 and the snap-fit ​​design with the clamp 8, as well as the cooperation between the clamp 8 and the bottom of the protective shell 4, further enhance the stability of the protective shell 4. The positioning structure, including the connecting seat 9, guide rod 10, and positioning block 11, allows for precise positioning between the clamp 8 and the fixing seat 5, avoiding... To prevent loosening or misalignment, the reliability of the entire structure is improved. The return spring 14 fitted on the surface of the guide rod 10 can quickly return to its original position after the structure is subjected to force, improving the stability and reliability of the structure. The heat dissipation holes 15 on the surface of the protective shell 4 can effectively improve the heat dissipation efficiency of the catalytic converter 2 and avoid damage caused by excessively high engine exhaust air temperature. The flexible support pad 16 set in the inner ring of the protective shell 4 not only increases the internal support area of ​​the protective shell 4 and improves the support stability, but also plays a role in shock absorption and buffering, protecting the catalytic converter 2 from external impacts. The setting of the second screw 17 further enhances the connection strength between the protective shell 4 and the protected object, ensuring that the two are tightly connected and not easy to loosen, thus improving the overall structural stability and safety.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A car exhaust pipe, characterized in that: Includes an exhaust pipe (1), one end of which is fixedly connected to a catalytic converter (2), and the other end of the catalytic converter (2) away from the exhaust pipe (1) is fixedly connected to a tailpipe (3); The surface of the catalytic converter (2) is covered with a protective shell (4), and the inside of the protective shell (4) is provided with a limiting structure. The top of the limiting structure is fixedly connected to the car floor.

2. The automobile exhaust pipe according to claim 1, characterized in that: The limiting structure includes a fixing seat (5), which is located inside the protective shell (4). The top of the fixing seat (5) penetrates the protective shell (4) and extends to the top of the protective shell (4). A first screw (6) is provided inside the fixing seat (5). The threaded end of the first screw (6) penetrates the fixing seat (5) and extends to the inside of the car floor. A groove (7) is provided at the bottom of the surface of the fixing seat (5). A clamp (8) is engaged inside the groove (7). The top of the clamp (8) is used in conjunction with the bottom of the protective shell (4). A positioning structure is provided inside the clamp (8). The top of the positioning structure is used in conjunction with the bottom of the fixing seat (5).

3. The automobile exhaust pipe according to claim 2, characterized in that: The positioning structure includes a connecting seat (9), the surface of which is fixedly connected to the inside of the clamp (8), and a guide rod (10) is provided inside the connecting seat (9). A positioning block (11) is fixedly connected to the top of the guide rod (10), and the surface of the positioning block (11) is used in conjunction with the bottom of the fixing seat (5).

4. A car exhaust pipe according to claim 3, characterized in that: The bottom of the fixed base (5) is provided with an opening (12) for use with the positioning block (11), and the bottom of the guide rod (10) is fixedly connected with a pull block (13) for pulling.

5. A car exhaust pipe according to claim 3, characterized in that: A reset spring (14) is fitted on the surface of the guide rod (10), and the reset spring (14) is located between the positioning block (11) and the connecting seat (9).

6. A car exhaust pipe according to claim 1, characterized in that: The protective shell (4) has heat dissipation holes (15) on its surface. There are several heat dissipation holes (15) and they are evenly distributed.

7. A car exhaust pipe according to claim 1, characterized in that: The inner ring of the protective shell (4) is provided with a flexible support pad (16), and a second screw (17) is provided inside the flexible support pad (16). The threaded end of the second screw (17) passes through the flexible support pad (16) and extends into the interior of the protective shell (4).

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