Automobile exhaust pipe with heat insulation and sound reduction structure
By designing a separable heat shield structure and an exhaust pipe of an elastic thermal conduction plate, the problem of waste of resources and unstable adaptation caused by the integrated processing of the heat shield and exhaust pipe in the prior art is solved, and the stable clamping and rapid heat dissipation of the exhaust pipe are achieved, and the applicability and heat dissipation efficiency of the equipment are improved.
Patent Information
- Application Number
- CN202420717022.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-04-09
AI Technical Summary
The heat insulation cover of existing automobile exhaust pipes is integrated with the exhaust pipe, which causes it to be replaced together when damaged, resulting in waste of resources. At the same time, the adaptation of the heat insulation cover on different exhaust pipes is unstable and easy to fall off.
A car exhaust pipe with an insulated sound-dropping structure is designed, adopting a separable heat shield structure. The heat shield consists of the left shell and the right shell. It is connected by hinges and bolts, combined with the design of the positioning rod and spring to achieve stable clamping of the exhaust pipe and rapid heat dissipation.
The heat insulation cover is easy to load and unload and replace, avoiding waste of resources; through the design of the elastic heat conduction plate, the stable clamping and rapid heat dissipation of the exhaust pipe are ensured, which is suitable for the thickness of different exhaust pipes; at the same time, the heat dissipation efficiency is improved through the setting of the heat dissipation groove and the heat dissipation hole.
Smart Images
Figure CN222576737U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile parts, in particular to an automobile exhaust pipe with a heat insulation and noise reduction structure. Background Art
[0002] The exhaust pipe is part of the engine exhaust system. The exhaust system mainly includes the exhaust manifold, exhaust pipe and muffler. Generally, the three-stage catalytic converter for controlling engine pollutant emissions is also installed in the exhaust system. The exhaust pipe generally includes the front exhaust pipe and the rear exhaust pipe. The temperature of automobile exhaust is high, so the temperature of the exhaust pipe will also be very high. And the exhaust pipe is exposed to the outside, which is easy to cause burns to people or other objects. For this reason, a heat shield is installed on the automobile exhaust pipe.
[0003] The heat shield in the prior art has the following defects: 1. The heat shield is integrally processed with the exhaust pipe. When the heat shield or the exhaust pipe is damaged, it must be replaced together, resulting in a waste of resources. 2. Due to the different sizes and diameters of the exhaust pipes of different cars, the heat shield is unstable when it is placed in the exhaust pipe and may fall off the exhaust pipe. Therefore, there is room for improvement. Utility Model Content
[0004] The utility model provides an automobile exhaust pipe with a heat insulation and noise reduction structure to solve the problems raised in the background technology.
[0005] In order to solve the above problems, the utility model provides an automobile exhaust pipe with a heat insulation and noise reduction structure, comprising an exhaust pipe and a heat insulation cover, wherein the heat insulation cover is sleeved on the outer surface of the exhaust pipe, and the heat insulation cover is composed of a left shell body and a right shell body, and the bottom ends of the left shell body and the right shell body are hinged, and the tops of the left shell body and the right shell body are provided with a connecting block, and the tops of the left shell body and the right shell body are connected by the connecting block and bolts, and the inside of the heat insulation cover is symmetrical, and is provided with an arc-shaped left heat conducting plate and an arc-shaped right heat conducting plate, and the left heat conducting plate and the right heat conducting plate are movably connected to the left shell body and the right shell body through a plurality of positioning rods, respectively, and a limit box is fixed at the end of the positioning rod in the left shell body and the right shell body, which is slidably connected to the positioning rod and prevents the positioning rod from falling off, and a spring is sleeved on the positioning rod, and the spring of the positioning rod sleeved on the left heat conducting plate is located between the left shell body and the left heat conducting plate, and the spring of the positioning rod sleeved on the right heat conducting plate is located between the right shell body and the right heat conducting plate.
[0006] Preferably, a limiting groove is provided at the connection between the upper end of the left shell and the right shell, and a limiting block plugged into the limiting groove is fixedly provided at the connection between the upper end of the right shell and the left shell.
[0007] Preferably, anti-slip strips are provided in the clamping plate surfaces of the left heat conducting plate and the right heat conducting plate, and a plurality of heat dissipation grooves penetrating through both ends are respectively provided in the left heat conducting plate and the right heat conducting plate.
[0008] Preferably, the positioning rod is located at the connection between the left heat conducting plate and the right heat conducting plate, between the two heat dissipation grooves, and is provided with a plurality of heat dissipation holes penetrating both ends.
[0009] The beneficial effects of adopting the above technical solution are:
[0010] 1. Through the hinges at the bottom of the left and right shells, the limit blocks are plugged into the limit grooves, and then the connection blocks are connected with bolts. While the protective cover plays a protective heat dissipation role, it is easy to load and unload the protective cover in the exhaust pipe, thereby preventing waste of resources.
[0011] 2. The positioning rod cooperates with the spring to make the left and right heat conducting plates elastic, so that the exhaust pipe can be clamped tightly to prevent it from falling off. At the same time, the exhaust pipes with slightly different thicknesses can be stably clamped. The left and right heat conducting plates fit tightly to the surface of the exhaust pipe, so as to quickly dissipate the heat from the surface of the exhaust pipe.
[0012] 3. Through the setting of the heat dissipation slots and heat dissipation holes, the airflow generated during the driving of the car can pass through the heat dissipation slots and heat dissipation holes to respectively export the heat in the left heat conduction plate and the right heat conduction plate, thereby improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0014] Figure 2 It is a three-dimensional structural schematic diagram of the protective cover of the utility model.
[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the protective cover of the utility model.
[0016] Among them: 1-exhaust pipe; 2-protective cover; 21-left shell; 22-right shell; 23-connecting block; 24-limiting groove; 25-limiting block; 3-left heat conducting plate; 4-right heat conducting plate; 5-positioning rod; 51-limiting box; 52-spring; 6-anti-slip strip; 7-heat dissipation groove; 8-heat dissipation hole. DETAILED DESCRIPTION
[0017] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.
[0018] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, a movable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0020] like Figure 1-3 In this embodiment, an automobile exhaust pipe with a heat insulation and noise reduction structure includes an exhaust pipe 1 and a heat insulation cover 2. The heat insulation cover sleeve 2 is arranged on the outer surface of the exhaust pipe 1. The heat insulation cover 2 is composed of a left shell 21 and a right shell 22. The bottom ends of the left shell 21 and the right shell 22 are hinged. The tops of the left shell 21 and the right shell 22 are provided with a connecting block 23, and the tops of the left shell 21 and the right shell 22 are connected by bolts through the connecting block 23. The heat insulation cover 2 is symmetrical inside and is provided with an arc-shaped left heat conducting plate 3 and an arc-shaped right heat conducting plate 4, the left heat conducting plate 3 and the right heat conducting plate 4 are movably connected to the left shell 21 and the right shell 22 respectively through a plurality of positioning rods 5, and a limit box 51 is provided at the end of the positioning rod 5 in the left shell 21 and the right shell 22, which is slidably connected with the positioning rod 5 and prevents the positioning rod 4 from falling off, and a spring 52 is sleeved on the positioning rod 5, and the spring 52 sleeved on the positioning rod 5 on the left heat conducting plate 3 is located between the left shell 21 and the left heat conducting plate 3, and the spring 52 sleeved on the positioning rod 5 on the right heat conducting plate 4 is located between the right shell 22 and the right heat conducting plate 4.
[0021] According to the above technical solution, when in use, since the bottom ends of the left shell 21 and the right shell 22 are hinged, the left shell 21 and the right shell 22 can be separated, so that the left shell 21 and the right shell 22 can be conveniently sleeved in the exhaust pipe 1. At this time, the left heat conducting plate 3 abuts against the left side of the exhaust pipe 1, and the right heat conducting plate 4 abuts against the right side of the exhaust pipe 1. The tops of the left shell 21 and the right shell 22 are combined, and the left shell 21 and the right shell 22 are combined and fixed by bolts and connecting blocks 23 to form a protective cover 2, which surrounds the surface of the exhaust pipe 1, so that the outside of the exhaust pipe 1 can be effectively protected. Protection, at the same time, the left heat conducting plate 3 and the right heat conducting plate 4 are elastic with the cooperation of the positioning rod 5, the limit box and the spring 52, so that the outer surface of the exhaust pipe 1 is stably clamped, so that the left heat conducting plate 3 and the right heat conducting plate 4 fit the surface of the exhaust pipe 1, and provide fixed support for the protective cover 2 while facilitating the conduction of heat in the exhaust pipe 1. Because the left heat conducting plate 3 and the right heat conducting plate 4 are elastic with the cooperation of the positioning rod 5, the limit box 51 and the spring 52, the exhaust pipes 1 with slightly different thicknesses can be clamped, thereby improving the applicability of the equipment.
[0022] Preferably, a limiting groove 24 is provided at the connection between the upper end of the left shell 21 and the right shell 22 , and a limiting block 25 inserted into the limiting groove 24 is fixedly provided at the connection between the upper end of the right shell 22 and the left shell 21 .
[0023] Through the above technical solution, the insertion of the limit block 25 and the limit groove 25 improves the stability of the connection between the left shell 21 and the right shell 22, and at the same time facilitates the positioning between the upper connecting blocks 23 of the left shell 21 and the right shell 22, so as to facilitate the connection with the bolts.
[0024] Preferably, anti-slip strips 6 are provided in the clamping plate surfaces of the left heat conducting plate 3 and the right heat conducting plate 4, and a plurality of heat dissipation grooves 7 penetrating through both ends are respectively provided in the left heat conducting plate 3 and the right heat conducting plate 4.
[0025] Through the above technical solution, the anti-slip strip 6 can increase the friction between the left heat conducting plate 3, the right heat conducting plate 4 and the exhaust pipe surface 1, thereby making the clamping more stable. The heat dissipation groove 7 facilitates the inflow of airflow generated by the moving car, thereby quickly dissipating the left heat conducting plate 3, the right heat conducting plate 4 and improving the heat dissipation efficiency.
[0026] Preferably, the connection point of the positioning rod 5 on the left heat conducting plate 3 and the right heat conducting plate 4 is between two heat dissipation grooves 7, and a plurality of heat dissipation holes 8 penetrating through both ends are opened thereon.
[0027] Through the above technical solution, the two heat dissipation grooves 7 in the left heat conducting plate 3 and the right heat conducting plate 4 are solid, so that the rigid connection between the positioning rod 5 and the left heat conducting plate 3 and the right heat conducting plate 4 is more stable. By opening the heat dissipation hole 8 at the solid connection, the solid part of the left heat conducting plate 3 and the right heat conducting plate 4 can be cooled without affecting the stable connection, thereby improving the heat dissipation efficiency.
[0028] Finally, it should be noted that the above implementation cases are only used to illustrate the present invention, rather than to limit the technical solutions described in the present invention; therefore, although this specification has described the present invention in detail with reference to the above-mentioned embodiments, ordinary technicians in this field should understand that the present invention can still be modified or replaced by equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention; technologies not described in detail in the present invention are implemented with existing technologies.
Claims
1. An automobile exhaust pipe with a heat insulation and noise reduction structure, comprising an exhaust pipe and a heat insulation cover, characterized in that: The heat insulation cover is sleeved on the outer surface of the exhaust pipe, and the heat insulation cover is composed of a left shell body and a right shell body. The bottom ends of the left shell body and the right shell body are hinged, and the tops of the left shell body and the right shell body are provided with connecting blocks, and the tops of the left shell body and the right shell body are connected by the connecting blocks and bolts. The inside of the heat insulation cover is symmetrical, and is provided with an arc-shaped left heat conducting plate and an arc-shaped right heat conducting plate. The left heat conducting plate and the right heat conducting plate are movably connected to the left shell body and the right shell body through a plurality of positioning rods respectively. A limit box is fixed at the end of the positioning rod in the left shell body and the right shell body, which is slidably connected to the positioning rod and prevents the positioning rod from falling off. A spring is sleeved on the positioning rod, and the spring of the positioning rod sleeved on the left heat conducting plate is located between the left shell body and the left heat conducting plate, and the spring of the positioning rod sleeved on the right heat conducting plate is located between the right shell body and the right heat conducting plate.
2. The automobile exhaust pipe with a heat-insulating and noise-reducing structure according to claim 1, characterized in that: A limiting groove is provided at the connection between the upper end of the left shell and the right shell, and a limiting block plugged into the limiting groove is fixedly provided at the connection between the upper end of the right shell and the left shell.
3. The automobile exhaust pipe with a heat-insulating and noise-reducing structure according to claim 1, characterized in that: Anti-slip strips are arranged in the clamping plate surfaces of the left heat conducting plate and the right heat conducting plate, and a plurality of heat dissipation grooves penetrating through both ends are respectively opened in the left heat conducting plate and the right heat conducting plate.
4. The automobile exhaust pipe with a heat-insulating and noise-reducing structure according to claim 1, characterized in that: The positioning rod is located at the connection between the left heat conducting plate and the right heat conducting plate, between the two heat dissipation grooves, and is provided with a plurality of heat dissipation holes penetrating the two ends.