An engine exhaust pipe heat insulation device

Abstract

The present invention provides a heat insulation device for an engine exhaust pipe, belonging to the technical field of engine exhaust pipes. The heat insulation device for the engine exhaust pipe includes an exhaust structure and a heat insulation structure. The exhaust structure includes an exhaust pipe and a connecting column, and the connecting column is fixed on the exhaust pipe. The heat insulation structure includes a heat insulation cover and a heat insulation sleeve. The heat insulation sleeve is fixed between the heat insulation cover and a fixing plate. The heat insulation sleeve includes a high-temperature resistant cloth, an aluminum foil cloth, a wire mesh and an inorganic fiber felt. The aluminum foil cloth is fixed on one side of the high-temperature resistant cloth. The inorganic fiber felt is fixed between the wire mesh and the fixing plate. The heat insulation cover, the fixing plate and the heat insulation sleeve are installed on the exhaust pipe. The present invention can effectively reduce the high temperature generated by the engine exhaust pipe, increase the accessibility of the engine, reduce heat radiation, reduce the probability of scalding caused by accidental touch, and is safer and more reliable to use.

Description

Technical Field

[0001] The present invention relates to the technical field of engine exhaust pipes, and more specifically, to a heat insulation device for an engine exhaust pipe. Background Art

[0002] The exhaust pipe is a part of the engine exhaust system. The exhaust system mainly includes an exhaust manifold, an exhaust pipe, and a muffler. Generally, a three-way catalytic converter for controlling engine pollutant emissions is also installed in the exhaust system. The exhaust pipe generally includes a front exhaust pipe and a rear exhaust pipe.

[0003] Currently, the surface temperature of the existing dry exhaust pipe is relatively high, and the heat radiation is large. It is easy to get scalded after accidental contact by people, increasing the risk for users. Summary of the Invention

[0004] To make up for the above deficiencies, the present invention provides a heat insulation device for an engine exhaust pipe, aiming to improve the problems of high surface temperature, large heat radiation, and easy scalding after accidental contact by people of the engine exhaust pipe.

[0005] The present invention is implemented as follows:

[0006] The present invention provides a heat insulation device for an engine exhaust pipe, including an exhaust structure and a heat insulation structure.

[0007] The exhaust structure includes an exhaust pipe and a connecting column. The connecting column is fixed on the exhaust pipe. The heat insulation structure includes a heat insulation cover, a fixing plate, and a heat insulation sleeve. The heat insulation sleeve is fixed between the heat insulation cover and the fixing plate. The heat insulation sleeve includes a high-temperature resistant cloth, an aluminum foil cloth, a steel wire mesh, and an inorganic fiber felt. The high-temperature resistant cloth is fixed on one side of the heat insulation cover. The aluminum foil cloth is fixed on one side of the high-temperature resistant cloth. The steel wire mesh is fixed on one side of the aluminum foil cloth. The inorganic fiber felt is fixed between the steel wire mesh and the fixing plate. The heat insulation cover, the fixing plate, and the heat insulation sleeve are installed on the exhaust pipe.

[0008] In an embodiment of the present invention, a first reinforcing rib is fixed on the surface of the heat insulation cover, and the first reinforcing rib is located on both sides of the heat insulation cover.

[0009] In an embodiment of the present invention, a second reinforcing rib is further fixed on the surface of the heat insulation cover, and the second reinforcing rib is distributed on both sides of the heat insulation cover.

[0010] In an embodiment of the present invention, a third reinforcing rib is further fixed on the surface of the heat insulation cover, and the third reinforcing rib is fixed together with the first reinforcing rib.

[0011] In an embodiment of the present invention, the steel wire mesh includes transverse steel wires and longitudinal steel wires, and the transverse steel wires and the longitudinal steel wires are perpendicularly fixed to each other.

[0012] In an embodiment of the present invention, grooves are provided on the surface of the heat shield, and nail holes are correspondingly provided inside the grooves and the fixing plate.

[0013] In an embodiment of the present invention, a screw penetrates through the inside of the nail hole, and the screw penetrates through the heat insulation sleeve and is threadedly connected to the inside of the connecting column.

[0014] In an embodiment of the present invention, a threaded hole matching the screw is provided inside the connecting column.

[0015] In an embodiment of the present invention, anti-corrosion coatings are sprayed on the surfaces of the heat shield and the fixing plate.

[0016] The beneficial effects of the present invention are as follows: An engine exhaust pipe heat insulation device obtained by the above design of the present invention, when in use, the heat insulation structure is installed on the exhaust pipe through screws. Due to the arrangement of high-temperature resistant cloth, aluminum foil cloth, wire mesh and inorganic fiber felt between the heat shield and the fixing plate, using their special properties of high temperature resistance, heat insulation, not easy to age and high strength, it can effectively reduce the high temperature generated by the exhaust pipe, increase the accessibility of the engine, reduce heat radiation, reduce the probability of scalding caused by accidental touch, and is safer and more reliable to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a schematic structural view of the first perspective of the engine exhaust pipe heat insulation device provided by the embodiment of the present invention;

[0019] Figure 2 is a schematic structural view of the second perspective of the engine exhaust pipe heat insulation device provided by the embodiment of the present invention;

[0020] Figure 3 is a three-dimensional structural view of the heat insulation structure of the engine exhaust pipe heat insulation device provided by the embodiment of the present invention;

[0021] Figure 4 is a schematic sectional view of the heat insulation sleeve of the engine exhaust pipe heat insulation device provided by the embodiment of the present invention;

[0022] Figure 5 is a schematic structural view of the wire mesh of the engine exhaust pipe heat insulation device provided by the embodiment of the present invention.

[0023] In the figure: 100 - exhaust structure; 110 - exhaust pipe; 120 - connecting column; 200 - heat insulation structure; 210 - heat insulation cover; 211 - first reinforcing rib; 212 - second reinforcing rib; 213 - third reinforcing rib; 220 - fixing plate; 230 - heat insulation sleeve; 231 - high-temperature resistant cloth; 232 - aluminum foil cloth; 233 - wire mesh; 2331 - horizontal wire; 2332 - vertical wire; 234 - inorganic fiber felt; 240 - groove; 241 - nail hole; 250 - screw. Specific embodiments

[0024] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment

[0026] Please refer to Figures 1-5 , the present invention provides a technical solution: an engine exhaust pipe heat insulation device, including an exhaust structure 100 and a heat insulation structure 200.

[0027] The heat insulation structure 200 is installed and fixed on the surface of the exhaust structure 100 for external protection of the exhaust structure 100, thereby effectively reducing scalding of people caused by accidental touch.

[0028] Please refer to Figure 1 and Figure 2 , the exhaust structure 100 includes an exhaust pipe 110 and a connecting column 120, and the connecting column 120 is fixed on the exhaust pipe 110.

[0029] The first reinforcing rib 211 is fixed on the surface of the heat insulation cover 210, and the first reinforcing rib 211 is located on both sides of the heat insulation cover 210; the second reinforcing rib 212 is also fixed on the surface of the heat insulation cover 210, and the second reinforcing rib 212 is distributed on both sides of the heat insulation cover 210; the third reinforcing rib 213 is also fixed on the surface of the heat insulation cover 210, and the third reinforcing rib 213 is fixed together with the first reinforcing rib 211. Here, through the arrangement of the first reinforcing rib 211, the second reinforcing rib 212 and the third reinforcing rib 213, the overall strength of the heat insulation cover 210 can be increased.

[0030] Please refer to Figures 1-5, the heat insulation structure 200 includes a heat insulation cover 210, a fixing plate 220, and a heat insulation sleeve 230. The heat insulation sleeve 230 is fixed between the heat insulation cover 210 and the fixing plate 220. The heat insulation sleeve 230 includes a high-temperature resistant cloth 231, an aluminum foil cloth 232, a wire mesh 233, and an inorganic fiber felt 234. The high-temperature resistant cloth 231 is fixed on one side of the heat insulation cover 210, the aluminum foil cloth 232 is fixed on one side of the high-temperature resistant cloth 231, the wire mesh 233 is fixed on one side of the aluminum foil cloth 232, and the inorganic fiber felt 234 is fixed between the wire mesh 233 and the fixing plate 220. The heat insulation cover 210, the fixing plate 220, and the heat insulation sleeve 230 are installed on the exhaust pipe 110.

[0031] Here, the high-temperature resistant cloth 231 is commonly known as high-temperature paint cloth and welding cloth. It uses high-quality imported glass fiber as the weaving material, and is woven into a high-grade glass fiber cloth substrate in plain weave, twill weave, satin weave or other weaves. Then, through unique process techniques, it is repeatedly and fully impregnated and coated with high-quality Teflon resin; the aluminum foil cloth 232 is composed of aluminum foil conductive cloth and hot melt adhesive. After selecting special flame-retardant adhesives for compounding, a dense film is formed. The surface of the compounded aluminum foil is smooth and flat, with a high light reflectivity, large tensile strength in both longitudinal and transverse directions, airtightness, water impermeability, and good sealing performance. It has characteristics such as high shielding rate, strong material toughness, and low price.

[0032] The wire mesh 233 includes transverse wires 2331 and longitudinal wires 2332, and the transverse wires 2331 and the longitudinal wires 2332 are perpendicularly fixed to each other; grooves 240 are formed on the surface of the heat insulation cover 210, and corresponding nail holes 241 are formed inside the grooves 240 and the fixing plate 220; a screw 250 penetrates through the inside of the nail hole 241, and the screw 250 penetrates through the heat insulation sleeve 230 and is threadedly connected to the inside of the connecting column 120; a threaded hole matching the screw 250 is formed inside the connecting column 120. Here, through the settings of the nail hole 241, the screw 250, and the threaded hole, the disassembly, installation, and fixation of the heat insulation structure 200 can be facilitated; anti-corrosion coatings are sprayed on the surfaces of the heat insulation cover 210 and the fixing plate 220. Here, the setting of the anti-corrosion coating can enhance the anti-corrosion efficiency of the heat insulation cover 210, thereby being beneficial to extending the service life.

[0033] Specifically, the working principle of the engine exhaust pipe heat insulation device: When in use, the heat insulation structure 200 is installed on the exhaust pipe 110 through the screw 250. Due to the installation of the high-temperature resistant cloth 231, the aluminum foil cloth 232, the wire mesh 233, and the inorganic fiber felt 234 between the heat insulation cover 210 and the fixing plate 220, by utilizing their special properties of high temperature resistance, heat insulation, non-aging, and high strength, the high temperature generated by the exhaust pipe 110 can be effectively reduced after installation, the accessibility of the engine can be increased, heat radiation can be reduced, and the probability of scalding caused by accidental contact can be lowered, making the use safer and more reliable.

[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An engine exhaust pipe heat insulation device, characterized in that, including an exhaust structure (100), the exhaust structure (100) includes an exhaust pipe (110) and a connecting column (120), and the connecting column (120) is fixed on the exhaust pipe (110); a heat insulation structure (200), the heat insulation structure (200) includes a heat insulation cover (210), a fixing plate (220) and a heat insulation sleeve (230), the heat insulation sleeve (230) is fixed between the heat insulation cover (210) and the fixing plate (220), the heat insulation sleeve (230) includes a high-temperature resistant cloth (231), an aluminum foil cloth (232), a steel wire mesh (233) and an inorganic fiber felt (234), the high-temperature resistant cloth (231) is fixed on one side of the heat insulation cover (210), the aluminum foil cloth (232) is fixed on one side of the high-temperature resistant cloth (231), the steel wire mesh (233) is fixed on one side of the aluminum foil cloth (232), the inorganic fiber felt (234) is fixed between the steel wire mesh (233) and the fixing plate (220), and the heat insulation cover (210), the fixing plate (220) and the heat insulation sleeve (230) are installed on the exhaust pipe (110); a first reinforcing rib (211) is fixed on the surface of the heat insulation cover (210), and the first reinforcing rib (211) is located on both sides of the heat insulation cover (210); a second reinforcing rib (212) is further fixed on the surface of the heat insulation cover (210), and the second reinforcing rib (212) is distributed on both sides of the heat insulation cover (210); a third reinforcing rib (213) is further fixed on the surface of the heat insulation cover (210), and the third reinforcing rib (213) is fixed together with the first reinforcing rib (211); the steel wire mesh (233) includes a transverse steel wire (2331) and a longitudinal steel wire (2332), and the transverse steel wire (2331) and the longitudinal steel wire (2332) are perpendicularly fixed to each other; a groove (240) is formed on the surface of the heat insulation cover (210), and a nail hole (241) is correspondingly formed inside the groove (240) and the fixing plate (220); a screw (250) penetrates through the nail hole (241), and the screw (250) penetrates through the heat insulation sleeve (230) and is threadedly connected inside the connecting column (120); a threaded hole matching the screw (250) is formed inside the connecting column (120); anti-corrosion coatings are sprayed on the surfaces of the heat insulation cover (210) and the fixing plate (220).

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