Automobile heat shield metal piece

By designing a limit plate and fastening bolt structure for automotive heat shield metal parts, the problem of cumbersome installation in existing technologies has been solved, enabling rapid installation and disassembly and improving practicality.

CN223767595UActive Publication Date: 2026-01-06SHANGHAI HUICHONG PRECISION MASCH MFG CO LTD
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Patent Information

Application Number
CN202520627766.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-01-06
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

Existing automotive heat shields require cumbersome bolt handling during installation and maintenance, resulting in long installation times, difficult disassembly, and high costs, thus affecting their practicality.

Method used

A metal component for automotive heat shields was designed, employing a structure of limiting plates, fixing plates, and fastening bolts. By rotating the upper cover, the fixing plates automatically align, and the threaded holes and nuts enable rapid fastening, simplifying the installation process.

Benefits of technology

It enables rapid installation and disassembly, reduces labor intensity, improves practicality, and enhances the convenience of loading and unloading and ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of automobile heat insulation covers, and discloses an automobile heat insulation cover metal part which comprises a lower cover body and an upper cover body, through limiting plates and fixing plates, when the cover bodies are installed, the fixing plates on the surface of the upper cover body can be driven to be attached to the limiting plates on the surface of the lower cover body only by rotating the upper cover body, and therefore the cover bodies can be installed conveniently. Due to the fact that a butt joint groove is formed in a limiting plate, a butt joint block on a fixed plate can be automatically inserted into the butt joint groove in the attaching process, then a fastening bolt is rotated to drive the fastening bolt to be screwed in along a threaded hole in the limiting plate, and at the moment, a movable plate connected with the fastening bolt can move in the limiting plate; due to the fact that the structure can be automatically aligned in the assembling process, and only one set of bolts need to be fastened, labor intensity can be effectively reduced, assembling and disassembling can be carried out more rapidly, structural practicability is improved, and the butt joint device has the advantages of being convenient to assemble and disassemble, high in practicability and capable of saving labor in operation.
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Description

Technical Field

[0001] This application relates to the field of automotive heat shield technology, and more specifically, to a metal component for an automotive heat shield. Background Technology

[0002] The exhaust piping system is a crucial component of a car's chassis. As it expels exhaust gases, it generates a significant amount of heat, causing the surface temperature of the exhaust pipes to reach 500–600°C. The normal operation of components surrounding the exhaust piping system is subject to strict temperature requirements. However, the compact space within a car chassis limits the arrangement of these components, with most located close to the exhaust pipes. Without heat shields, these components are exposed to high temperatures, leading to harsh operating conditions, reduced lifespan, and in some cases, even safety hazards.

[0003] A search of existing public technologies revealed an application with application number CN202123010067.8 entitled "A Heat Insulation Cover for an Automobile Exhaust Pipe." This cover, by incorporating a first and a second sleeve plate, facilitates easy installation on the exhaust pipe and makes disassembly more convenient. The first and second heat insulation layers provide double insulation, ensuring the heat insulation effect and improving the practicality of the device. The inclusion of a limiting groove and a tension spring prevents the two sleeve plates from separating and detaching, and also makes fastening the two sleeve plates easier.

[0004] However, the above-mentioned patent still has certain drawbacks in use: it requires the processing of multiple sets of fastening bolts during installation and maintenance, and the bolt holes need to be manually aligned and tightened. The steps are cumbersome, the installation time is long, and it increases the difficulty of disassembly and maintenance costs. It is time-consuming and laborious to use, and its overall practicality is not ideal.

[0005] To address the aforementioned issues, this application provides a metal component for an automotive heat shield. Utility Model Content

[0006] The technical solution provided in this application for a metal component for an automotive heat shield is as follows:

[0007] A metal component for an automotive heat shield includes a lower shield and an upper shield. The upper shield is rotatably connected to the top side of the lower shield. A limiting plate and a fixing plate are respectively installed at the top of one side surface of the lower shield and the bottom of one side surface of the upper shield. Several sets of mating grooves are evenly formed inside the limiting plate. A movable plate is slidably connected to the bottom of the mating groove. A fastening bolt is rotatably connected to one end of the movable plate. The fastening bolt is threadedly connected to the limiting plate. Several sets of mounting plates are evenly installed at the top of the movable plate. A mating rod is installed on one side of the mounting plate.

[0008] The above technical solution is designed to be used in conjunction with the docking block.

[0009] Furthermore, several sets of docking blocks are evenly installed at the bottom of the fixing plate, and docking holes are opened on the surface of the docking blocks.

[0010] The above technical solution is designed to work in conjunction with the connecting rod to achieve structural positioning and fixation.

[0011] Furthermore, a first heat insulation layer and a second heat insulation layer are installed on the inner surfaces of both the lower cover and the upper cover.

[0012] The first and second insulation layers, as described above, are for heat insulation purposes.

[0013] Furthermore, a threaded hole is provided inside one side of the limiting plate, and a nut is fixedly installed at the end of the threaded hole.

[0014] The threaded hole and nut in the above technical solution are designed to facilitate the fixing of the fastening bolt. When the fastening bolt rotates, it will move along the threaded hole. Since the fastening bolt is rotatably connected to the moving plate, the moving plate can be pushed when the fastening bolt rotates, thereby allowing the connecting rod to fix the connecting block and realize the fixing operation of the cover. The nut is to further enhance the fastening effect after rotation and facilitate better use.

[0015] Furthermore, a sliding groove is provided at the bottom of the inner part of the limiting plate.

[0016] The above technical solution uses a sliding groove to facilitate the movement of the moving plate, thereby adjusting the position of the docking rod and fixing the docking block, connecting the lower cover and the upper cover together, which facilitates subsequent heat insulation treatment of the car exhaust pipe.

[0017] Furthermore, several sets of flow holes are provided on the inner surface of both the lower cover and the upper cover.

[0018] The above technical solution uses flow holes to facilitate gas flow, which in turn carries away heat, thus achieving a certain degree of heat dissipation.

[0019] Furthermore, the first insulation layer is located below the second insulation layer.

[0020] The above technical solution uses ceramic fiber as the material for the first insulation layer and hydrogel as the material for the second insulation layer. The double insulation can ensure the insulation effect of the device and improve its practicality. The specific insulation material selection can be adjusted according to personnel needs, which will not be elaborated on here.

[0021] In summary, this application includes the following beneficial technical effects:

[0022] This application utilizes a limiting plate and a fixing plate. During the installation of the cover, simply rotating the upper cover allows the fixing plate on its surface to adhere to the limiting plate on the lower cover surface. Since the limiting plate has a mating groove, the mating block on the fixing plate automatically inserts into the groove during mating, thus achieving structural splicing. Then, rotating the fastening bolts allows them to be screwed into the threaded holes inside the limiting plate. At this time, the movable plate connected to the fastening bolts can move inside the limiting plate, inserting the mating rod into the mating hole on the mating block surface, thereby achieving the fastening operation of the cover. Because the structure automatically aligns during assembly and only one set of bolts needs to be tightened, it effectively reduces labor intensity, facilitates faster assembly and disassembly, and improves structural practicality. It has the advantages of convenient assembly and disassembly, strong practicality, and labor-saving operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a structural schematic diagram of the fixing plate in this application;

[0025] Figure 3 This is a schematic diagram of the structure of the limiting plate in this application;

[0026] Figure 4 This is a schematic diagram of the connection between the fastening bolts and the movable plate in this application.

[0027] Explanation of the labels in the diagram:

[0028] 1. Lower cover; 2. First insulation layer; 3. Second insulation layer; 4. Limiting plate; 5. Fastening bolt; 6. Fixing plate; 7. Upper cover; 8. Flow hole; 9. Connecting block; 10. Connecting hole; 11. Connecting groove; 12. Connecting rod; 13. Moving plate; 14. Mounting plate. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] Example:

[0033] This application discloses a metal component for an automotive heat shield; please refer to [link / reference]. Figure 1-4 The device includes a lower cover 1 and an upper cover 7. The upper cover 7 is rotatably connected to the top side of the lower cover 1. A limiting plate 4 and a fixing plate 6 are installed at the top of one side surface of the lower cover 1 and the bottom of one side surface of the upper cover 7, respectively. Several sets of docking grooves 11 are evenly opened inside the limiting plate 4. A moving plate 13 is slidably connected to the bottom of the docking groove 11. A fastening bolt 5 is rotatably connected to one end of the moving plate 13. The fastening bolt 5 is threadedly connected to the limiting plate 4. Several sets of mounting plates 14 are evenly installed at the top of the moving plate 13. A docking rod 12 is installed on one side of the mounting plate 14. The docking rod 12 is set to be used in conjunction with the docking block 9.

[0034] Please see Figure 1 and Figure 2 Several sets of docking blocks 9 are evenly installed at the bottom of the fixing plate 6. The docking blocks 9 have docking holes 10 on their surfaces. The docking blocks 9 are designed to be used in conjunction with the docking rod 12 to achieve the limiting and fixing of the structure.

[0035] Please see Figure 1 The lower cover 1 and the upper cover 7 are both equipped with a first heat insulation layer 2 and a second heat insulation layer 3 on their inner surfaces. The first heat insulation layer 2 and the second heat insulation layer 3 are used for heat insulation.

[0036] Please see Figure 1 , Figure 3 and Figure 4 A threaded hole is provided on one side of the limiting plate 4, and a nut is fixedly installed at the end of the threaded hole. The threaded hole and the nut are designed to facilitate the fixing of the fastening bolt 5. When the fastening bolt 5 rotates, it will move along the threaded hole. Since the fastening bolt 5 is rotatably connected to the moving plate 13, the moving plate 13 can be pushed when the fastening bolt 5 rotates, so that the docking rod 12 can fix the docking block 9, thereby realizing the fixing operation of the cover. The nut is to further enhance the fastening effect after rotation, so as to facilitate better use.

[0037] Please see Figure 1 , Figure 3 and Figure 4 The bottom of the limiting plate 4 is provided with a sliding groove. The sliding groove is designed to facilitate the movement of the moving plate 13, thereby adjusting the position of the docking rod 12 and fixing the docking block 9, so that the lower cover 1 and the upper cover 7 are connected together, which facilitates the subsequent heat insulation treatment of the car exhaust pipe.

[0038] Please see Figure 1 Several sets of flow holes 8 are provided on the inner surface of the lower cover 1 and the inner surface of the upper cover 7. The flow holes 8 are designed to facilitate the flow of gas, thereby carrying away heat through the flowing gas and achieving a certain degree of heat dissipation.

[0039] Please see Figure 1 The first insulation layer 2 is located below the second insulation layer 3. The material used for the first insulation layer 2 is ceramic fiber, and the material used for the second insulation layer 3 is hydrogel. The double insulation can ensure the insulation effect of the device and improve its practicality. The specific insulation material selection can be adjusted according to the needs of the personnel, which will not be elaborated here.

[0040] The implementation principle of this embodiment is as follows: In use, the lower cover 1 and the upper cover 7 can be installed on the outer periphery of the automobile exhaust pipe. At this time, heat insulation can be achieved through the first heat insulation layer 2 and the second heat insulation layer 3 inside the cover, avoiding damage and impact to surrounding components. At the same time, multiple sets of flow holes 8 are opened inside the cover. When the car is running, air can enter the flow holes 8 and flow along the flow holes 8. At this time, the heat transmitted from the cover can be carried away during the flow, thereby achieving a certain degree of heat dissipation. When installing the cover, simply rotate the upper cover 7 to drive the fixing plate 6 on the surface of the upper cover 7 to fit against the limiting plate 4 on the surface of the lower cover 1. Due to the limiting... The plate 4 has a mating groove 11, so when it is attached, the mating block 9 on the fixing plate 6 will automatically insert into the mating groove 11, thereby realizing the splicing operation of the structure. Then, by rotating the fastening bolt 5, it can be driven to screw into the threaded hole inside the limiting plate 4. At this time, the moving plate 13 connected to the fastening bolt can move inside the limiting plate 4, thereby inserting the mating rod 12 into the mating hole 10 on the surface of the mating block 9, thereby realizing the fastening operation of the cover. Since the structure will automatically align during assembly and only one set of bolts needs to be tightened, it can effectively reduce labor intensity, facilitate faster loading and unloading, and improve the practicality of the structure. The device as a whole has the advantages of convenient loading and unloading, strong practicality, and labor-saving operation.

[0041] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A metal piece of a heat shield for an automobile, comprising a lower shield body (1) and an upper shield body (7), characterized in that: The lower cover (1) top side position rotationally connected with upper cover (7), the lower cover (1) one side surface top position and upper cover (7) one side surface bottom position correspond to install limit board (4) and fixed plate (6), the limit board (4) inside evenly open has several groups of butt joint slot (11), the butt joint slot (11) inside bottom end position slidingly connected with moving plate (13), the moving plate (13) one end rotationally connected with fastening bolt (5), the fastening bolt (5) is connected with limit board (4) screw, the moving plate (13) top position evenly installed with several groups of mounting plate (14), the mounting plate (14) one side position is installed with butt joint rod (12).

2. The automotive heat shield metal piece of claim 1, wherein: The fixed plate (6) bottom position evenly installed with several groups of butt joint block (9), the butt joint block (9) surface position open has butt joint hole (10).

3. The automotive heat shield metal piece of claim 1, wherein: The lower cover (1) and upper cover (7) inside surface position are evenly installed with first heat insulation layer (2) and second heat insulation layer (3).

4. The automotive heat shield metal of claim 1, wherein: The limit board (4) one side inside position is provided with a threaded hole, and the threaded hole end position is fixedly installed with a nut.

5. The automotive heat shield metal of claim 1, wherein: The limit board (4) inside bottom end position open has a sliding groove.

6. The automotive heat shield metal piece of claim 1, wherein: The lower cover (1) surface inside position and upper cover (7) surface inside position all open has several groups of flow-through holes (8).

7. The automotive heat shield metal piece of claim 3, wherein: The first heat insulation layer (2) is below the second heat insulation layer (3).

Citation Information

Patent Citations

  • Heat shield of automobile tail gas exhaust pipe

    CN216381590U