Quick mounting structure of exhaust heat shield for automobile

Abstract

The utility model relates to the technical field of automobile parts, disclose a quick installation structure of automobile exhaust system heat shield, including upper cover body and lower cover body, the outside of upper cover body is provided with installation mechanism, the outside of upper cover body is provided with heat abstractor, the outside of upper cover body is provided with reinforcing mechanism, the outside of upper cover body is provided with connecting mechanism, the installation mechanism includes upper wing board, the outer wall fixed connection in the left side of upper cover body of upper wing board, the left side fixed connection of lower cover body has lower wing board, the bottom fixed connection of upper wing board has two fixed blocks, the front and back of two fixed blocks all are fixedly connected with elastic gasket. In the utility model, the heat shield is installed through the fixed block of upper wing board and is engaged with lower wing board, is inserted into the plug pin fixed from the embedded entry to the through hole inside, the plug pin tail connects the limiting ring and the supplementary pin, and the plug pin is prevented from popping out by abutting against, has good steady attribute, and the convenient installation and replacement are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a quick-installation structure for a heat shield for an automotive exhaust system. Background Technology

[0002] Automotive exhaust systems are a collection of pipes and devices that guide the exhaust gases produced by engine combustion from inside the engine to the outside of the vehicle, while simultaneously purifying the exhaust gases and reducing noise. Their main functions include centralized treatment of the high-temperature exhaust gases from each cylinder, reducing noise pollution, purifying harmful substances, ensuring smooth exhaust flow through properly designed pipe diameters, bends, and valves to avoid power loss, helping to correct fuel injection quantities, ensuring efficient catalytic converter operation, and significantly reducing the environmental pollution caused by vehicle exhaust. This is crucial for modern vehicles to meet stringent emission regulations, ensuring the safety of passengers, improving comfort, and minimizing impact on the public environment. However, the high temperatures from automotive exhaust components can transfer heat to other parts of the vehicle, causing damage, hence the need for heat shields.

[0003] The heat shield of the automotive exhaust system effectively isolates high temperatures, protects surrounding parts, and improves thermal management in the engine compartment. The protective frame device has electrical insulation properties and must have sufficient stability and mechanical strength. However, traditional heat shields are mostly fixed with bolts, which requires aligning multiple bolt holes during installation, making the operation cumbersome. If the bolts are rusted or stuck during disassembly, it will consume a lot of time and manpower, which is not conducive to later maintenance and replacement. Moreover, high-frequency vibrations are generated during the operation of the car. The traditional heat shield is rigidly connected to the exhaust components and lacks a buffer structure. Long-term vibration will cause the heat shield welds to crack and the structure to deform, or even fall off. Therefore, a quick-installation structure for automotive exhaust system heat shields is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a quick-installation structure for a heat shield for automotive exhaust systems, aiming to improve the inconvenience of installation and replacement in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick-installation structure for a heat insulation cover of an automotive exhaust system, comprising an upper cover and a lower cover, wherein an installation mechanism is provided on the outside of the upper cover, a heat dissipation mechanism is provided on the outside of the upper cover, a reinforcement mechanism is provided on the outside of the upper cover, and a connection mechanism is provided on the outside of the upper cover. The mounting mechanism includes an upper wing plate, the outer wall of which is fixedly connected to the left side of the upper cover. A lower wing plate is fixedly connected to the left side of the lower cover. Two fixing blocks are fixedly connected to the bottom of the upper wing plate. Elastic gaskets are fixedly connected to the front and rear sides of the two fixing blocks. Through holes are opened on the outer walls of the two fixing blocks. Pins are slidably connected to the inner walls of the two through holes. Two insertion holes are opened on the left side of the lower wing plate. Limiting rings are slidably connected to the adjacent sides of the two pins. Replacement pins are fixedly connected to the adjacent sides of the two limiting rings. A rotating assembly is provided on the right side of the upper cover.

[0006] As a further description of the above technical solution: The heat dissipation mechanism includes multiple heat dissipation plates, the outer walls of which are fixedly connected to the outer wall of the upper cover. Multiple heat dissipation holes are opened on the top of each heat dissipation plate, and slots are opened on the rear side of each heat dissipation plate. Heat insulation plates are slidably connected to the inner walls of each slot, and fixing bolts are threadedly connected to the top of each heat dissipation plate. The outer wall of the upper cover is provided with uniform components.

[0007] As a further description of the above technical solution: The reinforcement mechanism includes two U-shaped buckles, the outer walls of which are fixedly connected to the outer wall of the upper cover. The outer wall of the upper cover has two guide grooves. The tops of the two U-shaped buckles are fixedly connected to metal gaskets, and the tops of the two metal gaskets are threaded with two bolts.

[0008] As a further description of the above technical solution: The connecting mechanism includes two mounting rings, the outer walls of which are fixedly connected to the outer wall of the upper cover, and the outer walls of the two mounting rings are provided with multiple connecting holes.

[0009] As a further description of the above technical solution: The rotating assembly includes multiple connecting rings, the outer walls of which are fixedly connected to the right side of the upper cover, and the inner walls of which are rotatably connected to the same rotating shaft.

[0010] As a further description of the above technical solution: The uniform component includes multiple radial heat pipes, the outer walls of which are fixedly connected to the outer wall of the upper cover, and the outer wall of the upper cover is fixedly connected to multiple supporting ribs.

[0011] As a further description of the above technical solution: Silicone rings are fixedly connected to the front and rear sides of the inner wall of the upper cover, and multiple metal sealing plates are fixedly connected to the inner wall of the upper cover.

[0012] As a further description of the above technical solution: The inner wall of the upper cover is fixedly connected to a heat-insulating inner layer, and the bottom of the heat-insulating inner layer is fixedly connected to a reflective coating.

[0013] This utility model has the following beneficial effects: In this utility model, the heat insulation cover is composed of two half-shells joined and fixed together. The upper and lower covers can be rotated and opened and closed through the pivot in the connecting ring. During installation, the upper wing plate is locked into the lower wing plate by the fixing block, and the pin is inserted into the through hole through the insertion port to fix the upper and lower wing plates. A limiting ring and a supplementary pin are connected at the end of the pin to hold the pin in place and prevent it from popping out. The elastic gasket plays a role in shock absorption and buffering. The operation is simple, has good stability properties, and is convenient for installation and replacement.

[0014] In this invention, the heat insulation cover can dissipate heat through non-heat accumulation areas. The heat at the connection point is dissipated to the outside through the heat dissipation holes on the heat dissipation plate. A slot is provided on the rear side to lock the heat insulation plate and block the heat dissipation holes. The heat insulation plate is fixed by a fixing bolt to determine the size of the heat dissipation holes, thereby achieving artificial control of the heat dissipation rate. The radial heat pipe dissipates heat evenly to the outside, avoiding excessive concentration. The support ribs expand the heat dissipation area, improve heat dissipation efficiency, and prevent heat accumulation, which would shorten the life of the heat insulation plate. Attached Figure Description

[0015] Figure 1 A perspective view of the quick-installation structure of the heat shield for the automotive exhaust system proposed in this utility model; Figure 2 This is a front view of the quick-installation structure for the heat shield of the automotive exhaust system proposed in this utility model; Figure 3 This is a side view of the quick-installation structure for the heat shield of the automotive exhaust system proposed in this utility model; Figure 4 This is a cross-sectional view of the upper wing plate of the quick-installation structure for the automotive exhaust system heat shield proposed in this utility model; Figure 5 This is a cross-sectional view of the heat dissipation plate of the quick-installation structure for the heat shield of the automotive exhaust system proposed in this utility model. Figure 6 This is a cross-sectional view of the upper cover of the quick-installation structure for the heat shield of the automotive exhaust system proposed in this utility model.

[0016] Legend: 1. Upper cover; 2. Lower cover; 3. Mounting mechanism; 301. Upper wing plate; 302. Lower wing plate; 303. Fixing block; 304. Elastic washer; 305. Through hole; 306. Pin; 307. Insertion port; 308. Limiting ring; 309. Replacement pin; 310. Rotating assembly; 3101. Connecting ring; 3102. Rotating shaft; 4. Heat dissipation mechanism; 401. Heat dissipation plate; 402. Heat dissipation hole; 40 3. Slot; 404. Insulation plate; 405. Fixing bolt; 406. Uniformity component; 4061. Radial heat pipe; 4062. Support rib; 5. Reinforcing mechanism; 501. U-shaped buckle; 502. Guide groove; 503. Metal gasket; 504. Bolt; 6. Connection mechanism; 601. Mounting ring; 602. Connection hole; 7. Silicone ring; 8. Metal sealing plate; 9. Inner insulation layer; 10. Reflective coating. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figures 3-6 The present invention provides an embodiment of a quick-installation structure for a heat shield of an automotive exhaust system, comprising an upper shield 1 and a lower shield 2. An installation mechanism 3 is provided on the outside of the upper shield 1 for installing and removing the heat shield. A heat dissipation mechanism 4 is provided on the outside of the upper shield 1 for internal heat dissipation. A reinforcement mechanism 5 is provided on the outside of the upper shield 1 for reinforcing the heat shield. A connecting mechanism 6 is provided on the outside of the upper shield 1 for connecting with other components. The mounting mechanism 3 includes an upper wing plate 301, the outer wall of which is fixedly connected to the left side of the upper cover 1. A lower wing plate 302 is fixedly connected to the left side of the lower cover 2. The upper wing plate 301 and the lower wing plate 302 support the components for fixing the heat insulation cover. Two fixing blocks 303 are fixedly connected to the bottom of the upper wing plate 301. The fixing blocks 303 are slightly thicker than the lower wing plate 302 and can engage with the grooves on the lower wing plate 302 when closed. Elastic gaskets 304 are fixedly connected to the front and rear sides of the two fixing blocks 303. The elastic gaskets 304 are used for buffering and vibration reduction to avoid wear caused by rigid collisions. The outer walls of the two fixing blocks 303 are provided with through holes 305. The lower wing plate 302 is also provided with through holes 305. The inner walls of the two through holes 305 are... All are slidably connected by pins 306, which pass through the lower wing plate 302 and the fixing block 303 to form a connection. The left side of the lower wing plate 302 has two insertion holes 307, which facilitate the insertion of pins 306. Each adjacent side of the two pins 306 is slidably connected to a limiting ring 308, and each adjacent side of the two limiting rings 308 is fixedly connected to a supplementary pin 309. Due to the width of the insertion hole 307, the pin 306 is always inside the lower wing plate 302. After passing through, the length is insufficient and additional parts are needed to connect the limiting ring 308 and the supplementary pin 309 to play a blocking role and prevent popping out. The right side of the upper cover 1 is provided with a rotating component 310, which is used for the rotation opening and closing of the heat insulation cover. The rotating assembly 310 includes multiple connecting rings 3101. The outer walls of the multiple connecting rings 3101 are all fixedly connected to the right side of the upper cover 1. The inner walls of the multiple connecting rings 3101 are all rotatably connected to the same rotating shaft 3102. The upper cover 1 and the lower cover 2 are connected by the connecting rings 3101 and opened and closed by rotating the rotating shaft 3102, which facilitates the overall installation. Specifically, the upper wing plate 301 and the lower wing plate 302 support the components for fixing the heat insulation cover. The fixing block 303 is slightly thicker than the lower wing plate 302 and can engage with the groove on the lower wing plate 302 when closed. The elastic gasket 304 is used for buffering and vibration reduction to avoid damage caused by rigid collisions. The lower wing plate 302 also has a through hole 305. The pin 306 passes through part of the lower wing plate 302 and the fixing block 303 to form a connection. The insertion port 307 facilitates the insertion of the pin 306. Due to the width of the insertion port 307, the pin 306 is always located inside the lower wing plate 302. If the length is insufficient after penetration, additional components are needed. The limiting ring 308 and the supplementary pin 309 are then connected to provide a blocking effect and prevent popping out. The upper cover 1 and the lower cover 2 are connected by a connecting ring 3101 and opened and closed by rotating the pivot 3102. This facilitates the overall installation, is simple to operate, has good stability, and is convenient for installation and replacement.

[0019] Reference Figures 3-5The heat dissipation mechanism 4 includes multiple heat dissipation plates 401. The outer walls of the multiple heat dissipation plates 401 are fixedly connected to the outer wall of the upper cover 1. The internal heat can be dissipated outward through the heat dissipation plates 401. Located in the non-heat accumulation area, it does not affect the heat insulation. Multiple heat dissipation holes 402 are opened on the top of the multiple heat dissipation plates 401. The internal air pressure can also be adjusted through the heat dissipation holes 402. The rear side of the multiple heat dissipation plates 401 is provided with slots 403. The slots 403 can engage the heat insulation plate 404. The inner walls of the multiple slots 403 are slidably connected with the heat insulation plate 404. The heat insulation plate 404 is used to block the heat dissipation holes 402, thereby controlling the heat dissipation efficiency. The top of the multiple heat dissipation plates 401 is threadedly connected with fixing bolts 405. The heat insulation plate 404 is fixed by fixing bolts 405, which facilitates disassembly and adjustment. The outer wall of the upper cover 1 is provided with a uniform component 406. The uniform component 406 is used to balance the heat dissipation. The uniform component 406 includes multiple radial heat pipes 4061. The outer walls of the multiple radial heat pipes 4061 are fixedly connected to the outer wall of the upper cover 1. The radial heat pipes 4061 are used to balance heat and avoid heat concentration. Multiple support ribs 4062 are fixedly connected to the outer wall of the upper cover 1. The support ribs 4062 can both expand the contact area like fish fins and strengthen the connection of the mounting ring 601. Specifically, internal heat can be dissipated outward through the heat dissipation plate 401, located in a non-heat accumulation area, thus not affecting heat insulation. Internal air pressure can also be regulated through the heat dissipation holes 402. The slot 403 can engage the heat insulation plate 404, which is used to block the heat dissipation holes 402, thereby controlling the heat dissipation efficiency. The heat insulation plate 404 is fixed by the fixing bolt 405, which facilitates disassembly and adjustment. The radial heat pipe 4061 is used to balance heat and avoid heat concentration. Multiple support ribs 4062 are fixedly connected to the outer wall of the upper cover 1. The support ribs 4062 can both expand the contact area like fish fins and strengthen the connection of the mounting ring 601. By controlling the heat dissipation efficiency, the internal heat is dissipated in an orderly manner, thereby improving the service life of the heat insulation cover.

[0020] Reference Figures 1-3 The reinforcement mechanism 5 includes two U-shaped buckles 501. The outer walls of the two U-shaped buckles 501 are fixedly connected to the outer wall of the upper cover 1. The U-shaped buckles 501 are used to reinforce and engage the upper wing plate 301 and the lower wing plate 302. The outer wall of the upper cover 1 has two guide grooves 502. The guide grooves 502 are used to remind the installer of the position of the U-shaped buckles 501 and facilitate the engagement of the U-shaped buckles 501. The top of the two U-shaped buckles 501 is fixedly connected to a metal washer 503. The metal washer 503 plays a vibration damping role and prevents vibration from causing it to fall off. The top of the two metal washer 503 is threaded with two bolts 504. The connection through the bolts 504 facilitates installation and disassembly and improves the fixed connection strength. The connecting mechanism 6 includes two mounting rings 601. The outer walls of the two mounting rings 601 are fixedly connected to the outer wall of the upper cover 1. The mounting rings 601 increase the contact area with other components. The outer walls of the two mounting rings 601 are provided with multiple connecting holes 602 for connecting with other components. Silicone rings 7 are fixedly connected to the front and rear sides of the inner wall of the upper cover 1. The silicone rings 7 serve as a connection and seal and are less affected by temperature. Multiple metal sealing plates 8 are fixedly connected to the inner wall of the upper cover 1. The metal sealing plates 8 are used to seal when the upper cover 1 and the lower cover 2 are closed. They expand when the temperature rises and fill the gaps. A heat-insulating inner layer 9 is fixedly connected to the inner wall of the upper cover 1. The heat-insulating inner layer 9 has extremely poor heat transfer efficiency and is a key component for heat insulation. A reflective coating 10 is fixedly connected to the bottom of the heat-insulating inner layer 9. The reflective coating 10 enhances the ability to reflect heat radiation and improves the heat insulation efficiency. The lower cover 2 also has the above components, achieving the same effect as a mirror image. Specifically, the U-shaped buckle 501 is used to reinforce and engage the upper wing plate 301 and the lower wing plate 302. The guide groove 502 is used to remind the installer of the engagement position of the U-shaped buckle 501 and facilitates its engagement. The metal gasket 503 acts as a vibration damper to prevent vibration from causing it to fall off. The bolts 504 are used for connection, which facilitates installation and disassembly and improves the strength of the fixed connection. The mounting ring 601 increases the contact area with other components. The connecting hole 602 is used for connection with other components. The silicone ring 7 acts as a sealing element and is less affected by temperature. The metal sealing plate 8 is used for sealing when the upper cover 1 and the lower cover 2 are closed. It expands when the temperature rises to fill the gaps. The heat insulation inner layer 9 has extremely poor heat transfer efficiency and is a key component for heat insulation. The reflective coating 10 enhances the reflectivity of heat radiation, improves heat insulation efficiency, and strengthens the seal of the heat insulation cover, making it more efficient and convenient to use.

[0021] Working principle: The upper cover 1 and the lower cover 2 are connected by a connecting ring 3101. The heat insulation cover can be quickly installed by rotating the pivot 3102 to close it, so that the fixing block 303 engages with the groove on the lower wing plate 302. The pin 306 passes through part of the lower wing plate 302 and the fixing block 303. The elastic pad 304 is used for buffering and vibration reduction to avoid wear caused by rigid collisions and to form a connection. The insertion port 307 facilitates the insertion of the pin 306. Due to the width of the insertion port 307, the pin 306 is always inside the lower wing plate 302. If the length is insufficient after penetration, additional parts are needed. The limiting ring 308 and the supplementary pin 309 are then connected to provide resistance and prevent popping out. This facilitates the overall installation, is simple to operate, has good stability, and is easy to install and replace. Furthermore, the internal heat can be dissipated outward through the heat dissipation plate 401, and is located in a non-heat accumulation area, so it does not affect the heat insulation. The internal air pressure can also be regulated through the heat dissipation holes 402. The slot 403 can engage the heat insulation plate 404, which is used to block the heat dissipation holes 402, thereby controlling the heat dissipation efficiency. The heat insulation plate 404 is fixed by the fixing bolt 405, which facilitates disassembly and adjustment. The radial heat pipe 4061 is used to balance the heat and avoid heat concentration. Multiple support ribs 4062 are fixedly connected to the outer wall of the upper cover 1. The support ribs 4062 can both expand the contact area like fish fins and strengthen the connection of the mounting ring 601. By controlling the heat dissipation efficiency, the internal heat is dissipated in an orderly manner, thereby improving the service life of the heat insulation cover.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-installation structure for a heat shield of an automotive exhaust system, comprising an upper shield (1) and a lower shield (2), characterized in that: The upper cover (1) is provided with an installation mechanism (3), a heat dissipation mechanism (4), a reinforcement mechanism (5), and a connection mechanism (6). The installation mechanism (3) includes an upper wing plate (301), the outer wall of which is fixedly connected to the left side of the upper cover (1), and a lower wing plate (302) is fixedly connected to the left side of the lower cover (2). Two fixing blocks (303) are fixedly connected to the bottom of the upper wing plate (301). Elastic pads (304) are fixedly connected to the front and rear sides of the two fixing blocks (303). Through holes (305) are opened on the outer walls of the two fixing blocks (303). Pins (306) are slidably connected to the inner walls of the two through holes (305). Two insertion slots (307) are opened on the left side of the lower wing plate (302). Limiting rings (308) are slidably connected to the adjacent sides of the two pins (306). Supplementary pins (309) are fixedly connected to the adjacent sides of the two limiting rings (308). A rotating assembly (310) is provided on the right side of the upper cover (1).

2. The quick-installation structure for the heat shield of an automotive exhaust system according to claim 1, characterized in that: The heat dissipation mechanism (4) includes multiple heat dissipation plates (401), the outer walls of the multiple heat dissipation plates (401) are fixedly connected to the outer wall of the upper cover (1), the top of the multiple heat dissipation plates (401) is provided with multiple heat dissipation holes (402), the rear side of the multiple heat dissipation plates (401) is provided with slots (403), the inner walls of the multiple slots (403) are slidably connected with heat insulation plates (404), the top of the multiple heat dissipation plates (401) is threadedly connected with fixing bolts (405), and the outer wall of the upper cover (1) is provided with uniform components (406).

3. The quick-installation structure for the automotive exhaust system heat shield according to claim 1, characterized in that: The reinforcement mechanism (5) includes two U-shaped buckles (501). The outer walls of the two U-shaped buckles (501) are fixedly connected to the outer wall of the upper cover (1). The outer wall of the upper cover (1) has two guide grooves (502). The tops of the two U-shaped buckles (501) are fixedly connected to metal gaskets (503). The tops of the two metal gaskets (503) are threaded with two bolts (504).

4. The quick-installation structure for the heat shield of an automotive exhaust system according to claim 1, characterized in that: The connecting mechanism (6) includes two mounting rings (601), the outer walls of the two mounting rings (601) are fixedly connected to the outer wall of the upper cover (1), and the outer walls of the two mounting rings (601) are provided with multiple connecting holes (602).

5. The quick-installation structure for the heat shield of an automotive exhaust system according to claim 1, characterized in that: The rotating assembly (310) includes multiple connecting rings (3101), the outer walls of which are fixedly connected to the right side of the upper cover (1), and the inner walls of which are rotatably connected to the same rotating shaft (3102).

6. The quick-installation structure for the heat shield of an automotive exhaust system according to claim 2, characterized in that: The uniform component (406) includes a plurality of radial heat pipes (4061), the outer walls of the plurality of radial heat pipes (4061) are fixedly connected to the outer wall of the upper cover (1), and the outer wall of the upper cover (1) is fixedly connected to a plurality of support ribs (4062).

7. The quick-installation structure for the heat shield of an automotive exhaust system according to claim 1, characterized in that: The inner wall of the upper cover (1) is fixedly connected with silicone rings (7) on both the front and back sides, and multiple metal sealing plates (8) are fixedly connected to the inner wall of the upper cover (1).

8. The quick-installation structure for the heat shield of an automotive exhaust system according to claim 1, characterized in that: The inner wall of the upper cover (1) is fixedly connected to a heat-insulating inner layer (9), and the bottom of the heat-insulating inner layer (9) is fixedly connected to a reflective coating (10).

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