Exhaust manifold shroud device with anti-scald function

By using ceramic fiberboard and a sandwich structure in the exhaust manifold cover, combined with an airflow heat conduction design, the problem of existing cover materials being prone to deformation at high temperatures has been solved, achieving an effective anti-scalding effect and improving the safety and heat insulation performance of the exhaust pipe.

CN224532811UActive Publication Date: 2026-07-21LISTER (SHANGHAI) POWER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LISTER (SHANGHAI) POWER TECH CO LTD
Filing Date
2025-10-15
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing exhaust manifold covers are mostly simple metal shells, which conduct heat quickly and are difficult to effectively prevent high-temperature burns; non-metallic materials are prone to softening and deformation at high temperatures, and cannot effectively prevent burns.

Method used

Using ceramic fiberboard as the insulation material, combined with a sandwich structure and airflow thermal conduction design, heat is conducted through airflow and the low thermal conductivity and porous structure of the ceramic fiberboard are used to reduce direct heat conduction, thereby enhancing the insulation effect.

Benefits of technology

It effectively prevents burns from high temperatures in the exhaust pipe, improves the practicality and safety of the protective cover device, and ensures good heat insulation performance in high-temperature environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an exhaust manifold shroud device with anti-scald function, including exhaust pipe body, exhaust pipe body one side is equipped with two first clamping plate, and the first clamping plate lower extreme is connected with second clamping plate swing through the pin shaft, and the first clamping plate upper end is equipped with the mounting groove, and the axle rod is close to second clamping plate one side with threaded rod fixed connection, and the second clamping plate upper end middle part is equipped with the recess, and threaded rod is equipped with the nut far from the mounting groove one end, and two first clamping plate far from second clamping plate one side with fixed plate fixed connection, and four connecting rods far from fixed plate one side with mounting plate fixed connection, and the mounting plate is fixedly installed with the heat insulating plate. This kind of shroud structure is convenient to install and detach, and the heat transfer process is good in heat dissipation effect, can effectively protect the exhaust pipe body, avoids the phenomenon of personnel scalding, improves the practicality of shroud device.
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Description

Technical Field

[0001] This utility model relates to the field of motor vehicle parts technology, and in particular to an exhaust manifold cover device with anti-scalding function. Background Technology

[0002] The exhaust manifold is a crucial component of the engine exhaust system, generating significant heat and reaching extremely high surface temperatures during operation. To prevent damage to surrounding parts and personnel from these high temperatures, a protective cover is typically installed on the exterior of the exhaust manifold. Existing exhaust manifold covers are mostly simple metal shells, which, while offering some heat protection, are poorly suited for heat conduction due to their high thermal conductivity. Some heat-resistant covers are made of non-metallic materials, which are prone to softening and deformation under prolonged use due to high-temperature radiation, or even burnt out, rendering them ineffective in preventing burns. Therefore, we propose an exhaust manifold cover device with heat-resistant functionality. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides an exhaust manifold cover device with anti-scalding function. This utility model solves the problem that existing exhaust manifold covers are mostly simple metal shells, which, while blocking heat to some extent, are difficult to effectively prevent scalding due to the rapid thermal conductivity of metal materials. Furthermore, some anti-scalding covers are made of non-metallic materials, which are prone to softening and deformation due to high-temperature radiation during prolonged use of the vehicle's exhaust pipe, or even being damaged by heat, thus failing to achieve the desired anti-scalding effect.

[0004] This utility model discloses an exhaust manifold cover device with anti-scalding function, comprising an exhaust pipe body. Two first clamping plates are provided on one side of the exhaust pipe body. The lower ends of the first clamping plates are movably connected to the second clamping plates via pins. An installation groove is provided at the upper end of the first clamping plates. A shaft is provided in the installation groove. The side of the shaft near the second clamping plate is fixedly connected to a threaded rod. An avoidance groove is provided in the middle of the upper end of the second clamping plate. A nut is provided at the end of the threaded rod away from the installation groove. The two first clamping plates are fixedly connected to a fixing plate on the side away from the second clamping plates. Four connecting rods are arranged in a matrix on the side of the fixing plate away from the first clamping plates. The four connecting rods are fixedly connected to the mounting plate on the side away from the fixing plate. A heat insulation plate is fixedly installed on the mounting plate.

[0005] In the above scheme, the heat insulation board and the mounting plate are fixedly connected by bolts.

[0006] In the above scheme, both the upper and lower ends of the heat insulation board are inclined towards the fixed plate.

[0007] In the above scheme, the heat insulation plate is provided with a locking block on the side near the mounting plate, and the mounting plate is provided with a fixing groove that matches the locking block.

[0008] In the above scheme, the heat insulation board is a ceramic fiber board.

[0009] In the above scheme, the fixing plate has multiple heat sinks arranged at equal intervals on the side near the mounting plate.

[0010] In the above scheme, a washer is provided between the threaded rod and the second clamping plate and the nut.

[0011] The advantages and beneficial effects of this utility model are as follows: This utility model provides an exhaust manifold cover device with anti-scalding function. When the nut is rotated, the nut moves on the threaded rod, and the nut presses against the second clamping plate. Through the cooperation between the second clamping plate and the first clamping plate, the cover device can be stably installed on the exhaust pipe body. During the operation of the vehicle, the airflow passes between the fixed plate and the mounting plate, and the heat absorbed by the cover device is conducted through the airflow. The heat insulation plate on the outer side can isolate the heat on the exhaust pipe body, thereby preventing burns to personnel from the exhaust pipe body. This cover structure is easy to install and disassemble, has good heat dissipation during heat transfer, effectively protects the exhaust pipe body, prevents burns to personnel, and improves the practicality of the cover device. Attached Figure Description

[0012] 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.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the first and second clamping plates of this utility model;

[0015] Figure 3 This is a schematic diagram of part A of the present invention.

[0016] In the diagram: 1. Exhaust pipe body; 2. First clamping plate; 3. Pin; 4. Second clamping plate; 5. Mounting groove; 6. Shaft; 7. Threaded rod; 8. Clearance groove; 9. Nut; 10. Fixing plate; 11. Connecting rod; 12. Mounting plate; 13. Heat insulation plate; 14. Bolt; 15. Clamp; 16. Fixing groove; 17. Heat sink; 18. Gasket. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0018] like Figure 1-3 As shown, this utility model is an exhaust manifold cover device with anti-scalding function, including an exhaust pipe body 1. Two first clamping plates 2 are provided on one side of the exhaust pipe body 1. The lower ends of the first clamping plates 2 are movably connected to the second clamping plates 4 via pins 3. The pins 3 allow the second clamping plates 4 to rotate around the first clamping plates 2. The first clamping plates 2 and 4 can be clamped on the outside of the exhaust pipe body 1. An installation groove 5 is provided at the upper end of the first clamping plate 2. A shaft 6 is provided in the installation groove 5, with both ends of the shaft 6 movably connected to the inner wall of the installation groove 5. The side of the shaft 6 near the second clamping plate 4 is fixedly connected to a threaded rod 7. An clearance groove 8 is provided in the middle of the upper end of the second clamping plate 4. A nut 9 is provided at the end of the threaded rod 7 away from the installation groove 5. When the nut 9 is rotated, it moves on the threaded rod 7, and the nut 9 presses against the second clamping plate 4. The protective cover is stably installed on the exhaust pipe body 1 through the cooperation between the second clamping plate 4 and the first clamping plate 2. The two first clamping plates 2 are fixedly connected to the fixing plate 10 on the side away from the second clamping plate 4. The fixing plate 10 is provided with four matrix-arranged connecting rods 11 on the side away from the first clamping plate 2. The four connecting rods 11 are fixedly connected to the mounting plate 12 on the side away from the fixing plate 10. A heat insulation plate 13 is fixedly installed on the mounting plate 12. There is a channel for airflow between the fixing plate 10 and the mounting plate 12. During the operation of the motor vehicle, the airflow passes through the space between the fixing plate 10 and the mounting plate 12. Through the flow of airflow, the heat absorbed by the protective cover can be conducted. The heat insulation plate 13 located on the outside can isolate the heat on the exhaust pipe body 1, thereby preventing the exhaust pipe body 1 from burning people.

[0019] The heat insulation plate 13 and the mounting plate 12 are fixedly connected by bolts 14. The bolts 14 allow the heat insulation plate 13 to be stably installed on the mounting plate 12.

[0020] The heat insulation plate 13 is inclined towards the fixed plate 10 at both ends, and the inclined heat insulation plate 13 effectively increases the protection range of the heat insulation plate 13.

[0021] The heat insulation plate 13 is provided with a locking block 15 on the side near the mounting plate 12. The mounting plate 12 is provided with a fixing groove 16 that matches the locking block 15. The locking block 15 is engaged inside the fixing groove 16. Through the mutual cooperation between the locking block 15 and the fixing groove 16, the accuracy of the installation of the heat insulation plate 13 is effectively guaranteed.

[0022] The insulation board 13 is a ceramic fiber board. Ceramic fiber boards have low thermal conductivity and are composed of long, thin fibers that interweave to form a porous structure. This increases the path length for heat transfer, causing heat to be reflected and scattered multiple times within the fibers, thus reducing direct heat conduction. Simultaneously, the pores are filled with air, which has low thermal conductivity and is less prone to convection, further enhancing the insulation effect. Furthermore, ceramic fibers maintain good stability at high temperatures, withstanding temperatures above 1000℃. In high-temperature environments, their physical and chemical properties change minimally, and their insulation performance does not significantly decrease with increasing temperature, allowing them to continuously provide excellent insulation.

[0023] The fixing plate 10 has a plurality of heat sinks 17 arranged at equal intervals on the side near the mounting plate 12. The arrangement of the heat sinks 17 increases the contact area between the fixing plate 10 and the airflow, thereby further increasing the heat dissipation efficiency of the airflow on the protective cover device.

[0024] The threaded rod 7 is provided with a washer 18 between the second clamping plate 4 and the nut 9.

[0025] Specifically, in this utility model, when the nut 9 is rotated, the nut 9 moves on the threaded rod 7, and the nut 9 presses against the second clamping plate 4. Through the cooperation between the second clamping plate 4 and the first clamping plate 2, the protective cover device can be stably installed on the exhaust pipe body 1. During the operation of the motor vehicle, the airflow passes between the fixing plate 10 and the mounting plate 12, and the heat absorbed by the protective cover device can be conducted through the flow of air. The heat insulation plate 13 located on the outside can isolate the heat on the exhaust pipe body 1, thereby avoiding the phenomenon of burns to personnel from the exhaust pipe body 1. The heat insulation plate 13 is a ceramic fiber board. The ceramic fiber board has a low thermal conductivity and is in the form of fine and long fibers. They are interwoven to form a porous structure, which increases the path length of heat transfer and causes heat to be reflected and scattered multiple times inside the fibers, thereby reducing the direct conduction of heat. Ceramic fibers can maintain good stability at high temperatures and can withstand temperatures above 1000℃. In high-temperature environments, its physical and chemical properties change little, and its heat insulation performance will not decrease significantly due to temperature increases, and it can continuously play a good heat insulation role.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 scalding-proof exhaust manifold cover device, comprising an exhaust pipe body (1), characterized in that, The exhaust pipe body (1) has two first clamping plates (2) on one side. The lower end of the first clamping plate (2) is movably connected to the second clamping plate (4) through a pin (3). The upper end of the first clamping plate (2) has an installation groove (5). The installation groove (5) has a shaft (6). The shaft (6) is fixedly connected to a threaded rod (7) on the side near the second clamping plate (4). The middle of the upper end of the second clamping plate (4) has a clearance groove (8). The threaded rod (7) has a nut (9) on the side away from the installation groove (5). The two first clamping plates (2) are fixedly connected to a fixing plate (10) on the side away from the second clamping plate (4). The fixing plate (10) has four matrix-arranged connecting rods (11) on the side away from the first clamping plate (2). The four connecting rods (11) are fixedly connected to a mounting plate (12) on the side away from the fixing plate (10). A heat insulation plate (13) is fixedly installed on the mounting plate (12).

2. The exhaust manifold cover device with anti-scalding function according to claim 1, characterized in that, The heat insulation plate (13) and the mounting plate (12) are fixedly connected by bolts (14).

3. The exhaust manifold cover device with anti-scalding function according to claim 1, characterized in that, The heat insulation board (13) is inclined towards the fixed plate (10) at both the upper and lower ends.

4. The exhaust manifold cover device with anti-scalding function according to claim 1, characterized in that, The heat insulation plate (13) has a locking block (15) on the side near the mounting plate (12), and the mounting plate (12) has a fixing groove (16) that matches the locking block (15).

5. The exhaust manifold cover device with anti-scalding function according to claim 1, characterized in that, The heat insulation board (13) is a ceramic fiber board.

6. The exhaust manifold cover device with anti-scalding function according to claim 1, characterized in that, The fixing plate (10) has multiple heat sinks (17) arranged at equal intervals on the side near the mounting plate (12).

7. The exhaust manifold cover device with anti-scalding function according to claim 1, characterized in that, The threaded rod (7) is provided with a washer (18) between the second clamping plate (4) and the nut (9).