Multifunctional heat shield for exhaust system exhaust pipe
By designing an arc-shaped plate-like protective heat insulation cover and an anti-rotation and fixing structure, the problems of poor heat dissipation of the exhaust pipe and rotational displacement of the heat insulation cover were solved, achieving rapid heat dissipation and stable installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO XINSHENG DETAI IND & TRADE CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-03
AI Technical Summary
The existing exhaust system's exhaust pipe heat shield is directly wrapped around the outside of the exhaust pipe, which reduces the heat dissipation effect and is prone to rotational displacement outside the exhaust pipe, leading to heat insulation failure.
A multifunctional heat insulation cover was designed, including an arc-shaped protective heat insulation cover with an anti-rotation plane and an assembly plane. Anti-rotation and fixation are achieved through anti-rotation screw holes and assembly screw holes. Combined with trapezoidal spacers and assembly locking buckles, heat dissipation gaps are formed and rotational displacement is prevented.
It enables rapid heat dissipation of the exhaust pipe and prevents the heat shield from rotating or shifting outside the exhaust pipe, ensuring heat insulation effect and installation stability.
Smart Images
Figure CN224452896U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of exhaust pipe heat insulation cover, and in particular relates to a multi-functional heat insulation cover for exhaust pipes of exhaust systems. Background Technology
[0002] An exhaust pipe heat shield is a protective device installed on a car's exhaust pipe. It is mainly used to insulate against high-temperature heat, separating these high-temperature areas from other parts of the vehicle, protecting surrounding components and improving driving safety. The heat shield is made of high-temperature resistant materials, which can effectively prevent high-temperature damage to nearby rubber hoses, resin parts, wires and other components.
[0003] Based on the above, the inventors have discovered the following shortcomings in existing exhaust pipe heat shields for exhaust systems:
[0004] 1. The heat shield is directly wrapped around the outside of the exhaust pipe, which can easily lead to poor heat dissipation of the exhaust pipe. It is not convenient to set up spacing measures on the heat shield to allow the exhaust pipe to dissipate heat quickly.
[0005] 2. The heat shield is prone to rotational displacement outside the exhaust pipe, which can cause the heat shield to fail. It is inconvenient to install anti-rotation measures on the heat shield to prevent it from rotating. Utility Model Content
[0006] To address the aforementioned technical problems, this utility model provides a multifunctional heat insulation cover for exhaust pipes in exhaust systems. This solves the problems of existing heat insulation covers directly wrapping around the exhaust pipe, which easily leads to poor heat dissipation, makes it inconvenient to install spacing measures on the heat insulation cover to allow for rapid heat dissipation, and makes it easy for the heat insulation cover to rotate outside the exhaust pipe, causing heat insulation failure. It also addresses the inconvenience of adding anti-rotation measures to prevent rotation of the heat insulation cover.
[0007] The purpose and effect of this utility model's multi-functional heat insulation cover for exhaust pipes in exhaust systems are achieved through the following specific technical means:
[0008] A multi-functional heat insulation cover for the exhaust pipe of an exhaust system includes a heat insulation cover body; the heat insulation cover body is provided with a protective heat insulation cover, the protective heat insulation cover is an arc-shaped plate structure, the top end face of the protective heat insulation cover has anti-rotation planes at both ends, the anti-rotation planes of the protective heat insulation cover have anti-rotation screw holes that run vertically through the middle, the left and right end faces of the protective heat insulation cover have assembly planes, the assembly planes of the protective heat insulation cover have assembly screw holes that run horizontally through the middle, and the bottom center of the protective heat insulation cover has a trapezoidal spacer bar in the front-to-back direction.
[0009] Furthermore, the assembly locking buckle is provided with a vehicle exhaust pipe inside, and the top left and right sides of the outer circumference of the vehicle exhaust pipe are provided with insertion blind holes.
[0010] Furthermore, an assembly locking buckle is fitted at the lower part between the assembly fixing columns. The assembly locking buckle is a U-shaped plate structure with an upward opening and a through-hole at both ends.
[0011] Furthermore, an assembly fixing post is installed inside the assembly screw hole of the protective heat insulation cover, a threaded post is provided on the inner side of the assembly fixing post, an anti-detachment ring plate is provided on the outer circumference of the outer end of the threaded post of the assembly fixing post, and a regular hexagonal groove is opened on the outer end face of the threaded post of the assembly fixing post.
[0012] Furthermore, a contact heat insulation column is inserted into the blind hole of the assembly anti-rotation column, a contact column is provided at the lower part of the contact heat insulation column, and an assembly column is provided at the top end face of the contact column of the contact heat insulation column.
[0013] Furthermore, a limiting ring plate is provided on the outer circumference of the top of the threaded column of the assembled anti-rotation column, and a regular hexagonal prism is provided on the top end face of the threaded column of the assembled anti-rotation column.
[0014] Furthermore, an assembly anti-rotation post is installed inside the anti-rotation screw hole of the protective heat insulation cover, and a threaded post is provided at the lower part of the assembly anti-rotation post. An insertion blind hole is opened at the bottom end face of the threaded post of the assembly anti-rotation post.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] The convenient heat shield makes contact with the outer circumference of the vehicle's exhaust pipe through trapezoidal spacers, so that a heat dissipation gap is formed between the heat shield and the vehicle's exhaust pipe. This solves the problem that the heat shield is directly wrapped around the outside of the exhaust pipe, which can easily lead to poor heat dissipation of the exhaust pipe and makes it inconvenient to set spacers on the heat shield to allow the exhaust pipe to dissipate heat quickly.
[0017] The anti-rotation post is easily assembled and installed on the protective heat shield via threads to support the contact heat shield. It is easy for the contact heat shield to be inserted into the blind insertion hole of the vehicle exhaust pipe to prevent the protective heat shield from rotating. This solves the problem that the heat shield is prone to rotational displacement outside the exhaust pipe, which leads to the failure of the heat shield insulation and the inconvenience of adding anti-rotation measures to the heat shield to prevent it from rotating. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the main structure of this utility model.
[0019] Figure 2 This is a bottom view of the structure of this utility model.
[0020] Figure 3 This is a cross-sectional structural diagram of the present invention.
[0021] Figure 4This is a disassembled structural diagram of the present invention.
[0022] Figure 5 This is an assembly diagram of the assembly fixing column and the assembly locking buckle of this utility model.
[0023] Figure 6 This is an assembly diagram of the protective heat insulation cover and the anti-rotation column of this utility model.
[0024] In the diagram: 1. Heat shield body; 2. Protective heat shield; 3. Assembled anti-rotation column; 4. Contact heat shield column; 5. Assembled fixing column; 6. Assembled locking buckle; 7. Vehicle exhaust pipe. Detailed Implementation
[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.
[0026] Example 1: As shown in the attached document Figure 1 To be continued Figure 6 As shown:
[0027] This utility model provides a multifunctional heat insulation cover for exhaust pipes of exhaust systems, including a heat insulation cover body 1; the heat insulation cover body 1 is provided with a protective heat insulation cover 2, which facilitates heat insulation protection for vehicle exhaust pipes 7. The protective heat insulation cover 2 has an overall arc-shaped plate structure, which facilitates mutual fitting with the vehicle exhaust pipe 7. The top end face of the protective heat insulation cover 2 is provided with anti-rotation planes at both ends, which facilitates the assembly and locking of anti-rotation posts 3 to prevent loosening. The anti-rotation plane of the protective heat insulation cover 2 has a through anti-rotation screw hole in the middle, which facilitates the assembly and installation of anti-rotation posts 3 by threads. The left and right end faces of the protective heat insulation cover 2 are provided with assembly planes, which facilitate mutual fitting with assembly locking buckles 6. The assembly plane of the protective heat insulation cover 2 has a through assembly screw hole in the middle, which facilitates assembly and locking of fasteners 6 by threads 6. The mounting post 5 is installed by threads. The bottom center of the protective heat shield 2 is provided with a trapezoidal spacer in the front and rear direction to facilitate contact with the vehicle exhaust pipe 7 and form a gap. The anti-rotation screw hole of the protective heat shield 2 is equipped with an assembly anti-rotation post 3 to facilitate anti-rotation of the protective heat shield 2. The lower part of the assembly anti-rotation post 3 is provided with a threaded post to facilitate the assembly anti-rotation post 3 to be installed by threads. The bottom end face of the threaded post of the assembly anti-rotation post 3 is provided with an insertion blind hole to facilitate contact with the heat shield post 4 for insertion and installation. The outer circumference of the top of the threaded post of the assembly anti-rotation post 3 is provided with a limit ring plate to facilitate the locking and limiting of the assembly anti-rotation post 3. The top end face of the threaded post of the assembly anti-rotation post 3 is provided with a regular hexagonal prism to facilitate the assembly anti-rotation post 3 to be rotated and disassembled by tools.
[0028] The assembly anti-rotation post 3 has a contact heat insulation post 4 inserted into its blind hole for easy contact and heat insulation with the vehicle exhaust pipe 7, preventing heat transfer from the exhaust pipe 7 to the assembly anti-rotation post 3 and affecting the assembly effect. The lower part of the contact heat insulation post 4 has a contact post for easy contact and heat insulation with the exhaust pipe 7. The top end face of the contact post of the contact heat insulation post 4 has an assembly post for easy insertion into the blind hole of the assembly anti-rotation post 3 for assembly. The assembly fixing post 5 is installed inside the assembly screw hole of the protective heat insulation cover 2 for easy load-bearing and fixing of the assembly locking buckle 6. The inner side of the assembly fixing post 5 has a threaded post for easy assembly and disassembly via threads. The outer circumference of the outer end of the threaded post of the assembly fixing post 5 has an anti-detachment ring plate for easy anti-detachment of the assembly locking buckle 6. The outer end face of the threaded post 5 of the mounting post 5 is provided with a regular hexagonal groove, which facilitates the assembly and disassembly of the mounting post 5 by rotating it with tools. The lower part of the mounting post 5 is fitted with an assembly locking buckle 6, which facilitates the installation of the protective heat insulation cover 2 on the vehicle exhaust pipe 7 through the assembly locking buckle 6 to prevent it from falling off. The assembly locking buckle 6 is a U-shaped plate structure with an opening facing upward and running through the front and back, which facilitates the vehicle exhaust pipe 7 to be placed inside. Both ends of the assembly locking buckle 6 are provided with through holes on the left and right sides, which facilitates the mounting post 5 to pass through. The vehicle exhaust pipe 7 is set inside the assembly locking buckle 6, which facilitates the exhaust system to exhaust and facilitates the support of various components. The outer circumference of the vehicle exhaust pipe 7 is provided with blind insertion holes on the left and right sides, which facilitates the insertion of the heat insulation post 4 to prevent the protective heat insulation cover 2 from rotating.
[0029] The specific usage and function of this embodiment are as follows:
[0030] In this utility model, such as Figure 1 As shown, both the protective heat shield 2 and the vehicle exhaust pipe 7 are cut off at both ends. The protective heat shield 2 forms line contact with the vehicle exhaust pipe 7 through trapezoidal spacers, thereby creating non-contact heat dissipation channels on both sides of the trapezoidal spacers of the protective heat shield 2. The radiant heat from the vehicle exhaust pipe 7 is carried away by air convection. At the same time, the arc-shaped plate structure of the protective heat shield 2 forms a longitudinal heat dissipation air duct, and the trapezoidal spacers of the protective heat shield 2 create transverse airflow channels. This achieves multi-dimensional cross heat dissipation, thus enabling the protective heat shield 2 to play an auxiliary heat dissipation function and solving the problem of direct heat shield... The problem of the heat shield 2 being wrapped around the outside of the exhaust pipe can easily lead to poor heat dissipation. The anti-rotation post 3 is installed on the protective heat shield 2 by threads. The anti-rotation post 3 supports the contact heat shield 4, which is inserted into the blind hole of the vehicle exhaust pipe 7. The anti-rotation post 3 and the contact heat shield 4 prevent the protective heat shield 2 from rotating outside the vehicle exhaust pipe 7. This solves the problem of the heat shield easily rotating and displacing outside the exhaust pipe, causing the heat shield to fail. This ensures the stability of the installation position of the protective heat shield 2.
[0031] Example 2: The difference from Example 1 is that the regular hexagonal prism of the assembly anti-rotation column 3 can also be set as a regular heptagonal prism, so that the assembly anti-rotation column 3 can only be rotated by a special tool that cooperates with the regular heptagonal prism, thus preventing non-workers from rotating and disassembling the assembly anti-rotation column 3.
[0032] Example 3: The difference from Example 1 is that the regular hexagonal groove of the assembly fixing column 5 can also be set as a regular heptagonal groove, so that the assembly fixing column 5 can only be rotated by a special tool that cooperates with the regular heptagonal groove, thus preventing non-workers from rotating and disassembling the assembly fixing column 5.
Claims
1. A multi-functional heat shield for exhaust pipes of exhaust systems, characterized by: Includes a heat insulation cover body (1); the heat insulation cover body (1) is provided with a protective heat insulation cover (2), the protective heat insulation cover (2) is an arc-shaped plate structure, the top end face of the protective heat insulation cover (2) is provided with anti-rotation planes at both ends, the anti-rotation plane of the protective heat insulation cover (2) is provided with an anti-rotation screw hole that runs through from top to bottom in the middle, the left and right end faces of the protective heat insulation cover (2) are provided with assembly planes, the assembly plane of the protective heat insulation cover (2) is provided with an assembly screw hole that runs through from left to right in the middle, and the bottom center of the protective heat insulation cover (2) is provided with a trapezoidal spacer strip in the front and back direction.
2. The multi-functional heat shield for exhaust pipe of exhaust system according to claim 1, wherein: The anti-rotation screw hole of the protective heat insulation cover (2) is equipped with an assembly anti-rotation column (3), and a threaded column is provided at the lower part of the assembly anti-rotation column (3). An insertion blind hole is opened on the bottom end face of the threaded column of the assembly anti-rotation column (3).
3. The multi-functional heat shield for exhaust pipe of exhaust system according to claim 2, wherein: The outer circumference of the top of the threaded column of the assembled anti-rotation column (3) is provided with a limiting ring plate, and the top end face of the threaded column of the assembled anti-rotation column (3) is provided with a regular hexagonal prism.
4. The multi-functional heat shield for exhaust pipe of exhaust system according to claim 3, wherein: The assembly anti-rotation column (3) has a contact heat insulation column (4) inserted into the blind hole. The lower part of the contact heat insulation column (4) is provided with a contact column, and the top end face of the contact column of the contact heat insulation column (4) is provided with an assembly column.
5. The multi-functional heat shield for exhaust pipe of exhaust system according to claim 2, wherein: The assembly fixing post (5) is installed inside the assembly screw hole of the protective heat insulation cover (2). A threaded post is provided on the inner side of the assembly fixing post (5). An anti-detachment ring plate is provided on the outer circumference of the threaded post of the assembly fixing post (5). A regular hexagonal groove is opened on the outer end face of the threaded post of the assembly fixing post (5).
6. The multi-functional heat shield for exhaust pipe of exhaust system according to claim 5, wherein: The lower part of the assembly fixing column (5) is fitted with an assembly locking buckle (6). The assembly locking buckle (6) is a U-shaped plate structure with an upward opening and a through-hole at both ends.
7. The multi-functional heat shield for exhaust pipe of exhaust system according to claim 6, wherein: The assembly locking buckle (6) is provided with a vehicle exhaust pipe (7) inside, and the vehicle exhaust pipe (7) has insertion blind holes on both the left and right sides of the top of the outer circumference.