Stainless steel protective cover for headlamp of fire fighting truck

Abstract

The stainless steel protective cover comprises a stainless steel installation edge and an auxiliary supporting plate, the outline of the stainless steel installation edge is matched with the front portion of a headlamp assembly in shape, and blowing collecting and distributing pipes and steel bars are transversely fixed to the outer surface of the stainless steel installation edge at intervals. Mounting holes are correspondingly formed in all fixing positions of the stainless steel mounting edge, and a cushion block is arranged on the inner surface of the stainless steel mounting edge where each mounting hole is located. Most mounting holes of the stainless steel mounting edge are directly and correspondingly connected with screw holes preset in the headlamp assembly through screws, and few mounting holes of the stainless steel mounting edge are correspondingly connected with fixing pieces on a vehicle body through bolts by means of auxiliary supporting plates. The utility model relates to the technical field of fire fighting truck lamp auxiliary equipment, and solves the problems that the existing fire fighting truck headlamp adopts a PC (Polycarbonate) headlamp shade, the structural arrangement is unreasonable, the melting phenomenon is easy to occur, and the chemical corrosion resistance is poor.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for fire truck lights, and specifically to a stainless steel protective cover for the headlights of fire trucks. Background Technology

[0002] The headlight covers used on fire trucks are external protective devices, generally made of polycarbonate (also known as PC resin) plastic. They are fixed around the headlights and tightly fitted to the headlight design, and are a commonly used type of headlight cover on the market. However, this type of cover has a low heat distortion temperature (PC's heat distortion temperature is 90℃, and the maximum temperature it can withstand is 130℃). Therefore, it is prone to deformation under high temperatures caused by continuous irradiation. When using it, it is necessary to consider increasing the distance between the light source and the cover or reducing the output power of the light source. It also has poor chemical corrosion resistance (PC covers are not resistant to oil, acids, strong alkalis, oxidizing acids, amines, ketones, and are soluble in chlorinated hydrocarbons and aromatic solvents; long-term immersion in water can easily cause hydrolysis and cracking). Under normal short-term operating conditions, the surface temperature of the headlight cover will not exceed 130℃. When the lens cover is obstructed by external objects (such as a PC lens cover tightly attached to the headlight surface), preventing light from passing through, heat accumulates on the lens cover, causing its temperature to rise beyond its maximum tolerance. This heat breaks the bonds between molecules, causing the molecular chains to loosen and move, resulting in melting and ultimately deformation and cracks on the headlight surface and lens cover. Problems with the headlight lens cover can also lead to water ingress, affecting not only the brightness of the headlight but also damaging the electrical circuitry, thus impacting the headlight's performance and lifespan.

[0003] To address the issue of headlight covers being damaged due to melting in fire trucks, to extend the lifespan of headlights, and to accommodate the different applications of fire trucks in various scenarios, there is an urgent need to develop a high-temperature resistant, corrosion-resistant stainless steel headlight protective cover with automatic purging and cooling functions. Utility Model Content

[0004] The purpose of this utility model is to provide a stainless steel protective cover for the headlights of fire trucks, which solves the problems of existing fire truck headlights using PC headlight covers, which have unreasonable structural settings, are prone to melting, and have poor chemical corrosion resistance.

[0005] The technical solution adopted in this utility model is a stainless steel protective cover for the headlights of a fire truck, including a stainless steel mounting edge and an auxiliary support plate. The outer contour of the stainless steel mounting edge is adapted to the shape of the front of the headlight assembly. An air distribution pipe and a steel rod are fixed laterally at intervals on the outer surface of the stainless steel mounting edge. Mounting holes are provided at various fixing positions on the stainless steel mounting edge. A pad is provided on the inner surface of the stainless steel mounting edge at each mounting hole. Most of the mounting holes on the stainless steel mounting edge are directly connected to the pre-set screw holes on the headlight assembly using screws. A few mounting holes on the stainless steel mounting edge are connected to the fixing parts on the vehicle body using bolts through the auxiliary support plate.

[0006] The stainless steel protective cover for the headlights of this utility model is further characterized by:

[0007] The air blowing manifold is connected to the cooling pipe. The air inlet of the air blowing manifold is connected to the two-position two-way air circuit control solenoid valve through a nylon tube. The air inlet of the two-position two-way air circuit control solenoid valve is then connected to the air circuit distributor through the air source pressure regulating valve and the manual ball valve. The air inlet of the air circuit distributor is connected to the air outlet of the dryer. The air inlet of the dryer is connected to the air outlet of the air compressor. The two-position two-way air circuit control solenoid valve is also connected to the temperature control sensor switch signal.

[0008] The temperature control sensor switch is fixedly installed on the upper inner surface of the stainless steel mounting edge.

[0009] The two bends of the auxiliary support plate are at angles of 90° and 150°, respectively.

[0010] The thickness of the pad is 20-25mm.

[0011] The curvature of the stainless steel mounting edge is adapted to the curvature of the headlight assembly.

[0012] The auxiliary support plate is connected to the stainless steel mounting edge using bolts, nuts, spring washers, and flat washers.

[0013] The headlight assembly has predetermined screw hole positions, and the corresponding stainless steel mounting edge is connected to the fixing point of the headlight assembly using self-tapping screws and washers.

[0014] The beneficial effects of this utility model are that it solves the problems of melting and poor chemical corrosion resistance of existing PC headlight covers, providing more effective protection for the headlight assembly. The added pads prevent melting between the lamp cover and the headlight assembly surface. It has a high temperature resistance coefficient and strong corrosion resistance, making it suitable for fire rescue in various scenarios. All sharp corners are rounded to ensure safety; the surface is smooth, easy to clean and maintain; it is highly durable, able to withstand greater pressure and impact compared to plastic structures, reducing the frequency of maintenance and replacement. Equipped with an automatic blowing and cooling system, during continuous use of the fire truck headlights, a temperature control switch senses high temperatures and blows the surface to cool it down, ensuring the fire truck headlights can be used continuously for extended periods. Attached Figure Description

[0015] Figure 1 This is the front view of the protective cover for the headlights of the fire truck according to this utility model;

[0016] Figure 2 This is a schematic diagram of the automatic blowing mechanism of the stainless steel protective cover for the headlights in this utility model.

[0017] Figure 3 This is a side view of the stainless steel mounting edge and auxiliary support plate of this utility model;

[0018] Figure 4 This is a rendering of the installation effect of the stainless steel protective cover for the headlights of this utility model on a fire truck.

[0019] In the diagram, 1. Manual ball valve, 2. Air source pressure regulating valve, 3. Temperature control sensor switch, 4. Two-position two-way air circuit control solenoid valve, 5. Nylon tube, 6. Auxiliary support plate, 7. Pad block, 8. Air blowing manifold, 9. Stainless steel mounting edge, 10. Headlight assembly, 11. Steel rod, 12. Air circuit distributor, 13. Dryer, 14. Air compressor. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] Reference Figure 1 , Figure 2 , Figure 3 The overall structure of the stainless steel protective cover for the headlights of the fire truck of this utility model is as follows:

[0022] The assembly includes a stainless steel mounting edge 9 and an auxiliary support plate 6. The outer contour of the stainless steel mounting edge 9 is adapted to the front shape of the headlight assembly 10. The outer surface of the stainless steel mounting edge 9 is horizontally fixed with an air distribution pipe 8 and two steel rods 11. Mounting holes are provided at various fixing positions of the stainless steel mounting edge 9. A pad 7 is provided at the position of the inner surface of the stainless steel mounting edge 9 where each mounting hole is located. A temperature control sensor switch 3 is also fixedly installed on the upper inner surface of the stainless steel mounting edge 9. Most of the mounting holes of the stainless steel mounting edge 9 are directly connected to the pre-set screw holes on the headlight assembly 10 using screws. A few mounting holes of the stainless steel mounting edge 9 are connected to the fixing parts on the vehicle body by bolts using the auxiliary support plate 6.

[0023] The air blowing manifold 8 is connected to the cooling pipeline. Specifically, the air inlet of the air blowing manifold 8 is connected to the two-position two-way air circuit control solenoid valve 4 through the nylon tube 5 (made of PA12 nylon material). The air inlet of the two-position two-way air circuit control solenoid valve 4 is then connected to the air circuit distributor 12 through the air source pressure regulating valve 2 and the manual ball valve 1. The air inlet of the air circuit distributor 12 is connected to the air outlet of the drying tank 13. The air inlet of the drying tank 13 is connected to the air outlet of the air compressor 14. The two-position two-way air circuit control solenoid valve 4 is also connected to the temperature control sensor switch 3.

[0024] The function of manual ball valve 1 is to allow manual shut-off of the main gas supply valve in emergency situations and when cooling gas is not needed in winter.

[0025] The air source pressure regulating valve 2 can regulate the air pressure in the air path purging and cooling system, with a pressure regulation range of 0.2-0.4MPa.

[0026] The temperature control sensor switch 3 can be set with a closing temperature and a reset temperature as needed to achieve automatic control. The closing temperature is set to 80℃-100℃, and the reset temperature is set to 60℃-80℃.

[0027] The auxiliary support plate 6 is laser-cut and then bent twice (at angles of 90° and 150° respectively, see...) Figure 3 As shown in the image, after removing burrs and sharp corners from the surface, a painting process is performed.

[0028] The pad 7 is machined by a machine tool, with a thickness of 20-25mm, an outer diameter of φ20mm, an inner diameter of φ10mm, and is formed in one piece.

[0029] The air distribution pipe 8 is a φ12×2 stainless steel pipe, with a barbed connector welded to one end of the main pipe. The air is directed towards the headlight assembly 10 and connected to the nylon pipe 5 for air intake. There are 4-6 blow-off branch pipes, which are evenly welded to the main pipe. The air outlet of each blow-off branch pipe is oriented from bottom to top at an angle of 10-25°, towards the headlight assembly 10, to blow and cool the headlight assembly 10.

[0030] The stainless steel mounting edge 9 is laser-cut and formed using a bending machine, along with a V-groove (lower die) and a bending knife (upper die), to bend the curved part of the lamp cover. After the surface bending is completed, the finished base plate is compared with the front outline of the headlight assembly 10 for inspection. The curvature of the stainless steel mounting edge 9 must be compatible with the curvature of the headlight assembly 10, providing all-around protection for the headlight assembly 10. After passing the inspection, if... Figure 1 and Figure 4 As shown, the air distribution pipe 8 and two φ6 steel rods 11 (slightly bent) are welded to the base plate using a laser welding machine. To ensure the strength and uniform stress distribution of the stainless steel mounting edge 9, [further details are needed]. Figure 1 The air distribution pipe 8 and the two steel rods 11 are fully welded at the positions shown. After welding, the surface slag is removed and the surface is painted.

[0031] The installation method of this utility model is as follows: see Figure 3 , Figure 4 The stainless steel mounting edge 9 is fixed around the headlight assembly 10. For mounting holes that cannot be directly fixed to the headlight assembly 10, auxiliary support plates 6 are used for support. Bolts, nuts, spring washers, and flat washers are used to connect and fix the stainless steel mounting edge 9 to the pads 7 and auxiliary support plates 6. For the remaining positions relative to the predetermined screw holes on the headlight assembly 10, the support of the auxiliary support plates 6 is omitted, and self-tapping screws are directly used to connect and fix the mounting edges of the headlight assembly 10 to the pads 7. Figure 4 As shown, the stainless steel protective cover of the installed fire truck headlight fits the headlight assembly 10 with its curvature, and the added pad 7 creates a 20mm gap between the cover and the headlight assembly 10. The installation method is simple and does not affect the space around the vehicle.

[0032] The purging cooling principle of this utility model is as follows: air is drawn from the existing chassis-mounted air dryer 13. The air inlet of the air dryer 13 is connected to the outlet of the vehicle's air compressor 14, and the air outlet of the air dryer 13 is connected to the air distributor 12. The air distributor 12 is connected to the manual ball valve 1 via a nylon tube 5. The manual ball valve 1 is then connected to the air blowing manifold 8 via the air source pressure regulating valve 2 and the two-position two-way air circuit control solenoid valve 4. The cooling air circuit is controlled by a temperature control sensor switch 3, for example, by setting the closing temperature of the temperature control sensor switch 3. When the temperature is set to 90℃ and the reset temperature is set to 70℃, the temperature control switch 3 will detect when the surface temperature of the headlight assembly 10 reaches 90℃. The temperature control switch 3 will automatically close and open the two-position two-way air passage control solenoid valve 4, allowing cooling gas to enter the air distribution pipe 8 to blow and cool the headlight surface. When the surface temperature of the headlight assembly 10 drops to 70℃, the temperature control switch 3 will detect when it drops to 70℃. The temperature control switch 3 will automatically reset and close the two-position two-way air passage control solenoid valve 4, and the air distribution pipe 8 will stop working.

[0033] Example 1

[0034] The overall structure of the stainless steel protective cover for the fire truck headlight in this embodiment 1 includes a stainless steel mounting edge 9 and an auxiliary support plate 6. The outer contour of the stainless steel mounting edge 9 is adapted to the front shape of the headlight assembly 10. The outer surface of the stainless steel mounting edge 9 is laterally fixed with an air distribution pipe 8 and two steel rods 11. Mounting holes are provided at various fixed positions of the stainless steel mounting edge 9. A pad 7 is provided at the inner surface position of each mounting hole of the stainless steel mounting edge 9. A temperature control sensor switch 3 is also fixedly installed on the upper inner surface of the stainless steel mounting edge 9. Most of the mounting holes of the stainless steel mounting edge 9 are directly connected to the pre-set screw holes on the headlight assembly 10 using screws. A few mounting holes of the stainless steel mounting edge 9 are connected to the fixing parts on the vehicle body by bolts using the auxiliary support plate 6.

[0035] The air distribution pipe 8 is connected to the cooling pipe. That is, the air inlet of the air distribution pipe 8 is connected to the two-position two-way air circuit control solenoid valve 4 through the nylon pipe 5. The air inlet of the two-position two-way air circuit control solenoid valve 4 is then connected to the air circuit distributor 12 through the air source pressure regulating valve 2 and the manual ball valve 1. The air inlet of the air circuit distributor 12 is connected to the air outlet of the drying tank 13. The air inlet of the drying tank 13 is connected to the air outlet of the air compressor 14. The two-position two-way air circuit control solenoid valve 4 is also connected to the temperature control sensor switch 3.

[0036] A 6-hour lighting test was conducted on the fire truck. With the shim 7 at a height of 20mm, when the surface temperature of the headlight assembly 10 reached 90℃, the temperature control sensor switch 3 closed. At this time, the two-position, two-way air passage control solenoid valve 4 opened, and the air distribution pipe 8 blew air to cool the headlight surface. The effect was significantly different from the PC headlight covers used on the original fire truck. The original PC headlight covers melted after 2 hours, causing varying degrees of damage to both the headlight assembly 10 and the PC headlight covers. After the 6-hour test, a visual inspection of the fire truck's headlight protective cover revealed that the surface of the headlight assembly 10 was intact, with no melting or deformation, and the stainless steel mounting edge 9 was also intact.

[0037] Example 2

[0038] The overall structure of the stainless steel protective cover for the fire truck headlight in this embodiment 2 includes a stainless steel mounting edge 9 and an auxiliary support plate 6. The outer contour of the stainless steel mounting edge 9 is adapted to the front shape of the headlight assembly 10. The outer surface of the stainless steel mounting edge 9 is horizontally fixed with an air distribution pipe 8 and two steel rods 11. Mounting holes are provided at various fixed positions of the stainless steel mounting edge 9. A pad 7 is provided at the position of the inner surface of the stainless steel mounting edge 9 where each mounting hole is located. A temperature control sensor switch 3 is also fixedly installed on the upper inner surface of the stainless steel mounting edge 9. Most of the mounting holes of the stainless steel mounting edge 9 are directly connected to the pre-set screw holes on the headlight assembly 10 using screws. A few mounting holes of the stainless steel mounting edge 9 are connected to the fixing parts on the vehicle body by bolts using the auxiliary support plate 6.

[0039] The air distribution pipe 8 is connected to the cooling pipe. That is, the air inlet of the air distribution pipe 8 is connected to the two-position two-way air circuit control solenoid valve 4 through the nylon pipe 5. The air inlet of the two-position two-way air circuit control solenoid valve 4 is then connected to the air circuit distributor 12 through the air source pressure regulating valve 2 and the manual ball valve 1. The air inlet of the air circuit distributor 12 is connected to the air outlet of the drying tank 13. The air inlet of the drying tank 13 is connected to the air outlet of the air compressor 14. The two-position two-way air circuit control solenoid valve 4 is also connected to the temperature control sensor switch 3.

[0040] An 8-hour lighting test was conducted on the fire truck. With the shim 7 at a height of 20mm, when the surface temperature of the headlight assembly 10 reached 80℃, the temperature control sensor switch 3 closed. At this time, the two-position, two-way air passage control solenoid valve 4 opened, and the air distribution pipe 8 blew air onto the headlight surface to cool it down. The effect was significantly different from the PC headlight covers used on the original fire truck. The original PC headlight covers melted after 2 hours, causing varying degrees of damage to both the headlight assembly 10 and the PC headlight covers. After the 8-hour test, a visual inspection of the fire truck's headlight protective cover revealed that the surface of the headlight assembly 10 was intact, with no melting or deformation, and the stainless steel mounting edge 9 was also intact.

[0041] Example 3

[0042] The overall structure of the stainless steel protective cover for the fire truck headlight in this embodiment 3 includes a stainless steel mounting edge 9 and an auxiliary support plate 6. The outer contour of the stainless steel mounting edge 9 is adapted to the front shape of the headlight assembly 10. The outer surface of the stainless steel mounting edge 9 is horizontally fixed with an air distribution pipe 8 and two steel rods 11. Mounting holes are provided at various fixed positions of the stainless steel mounting edge 9. A pad 7 is provided at the position of the inner surface of the stainless steel mounting edge 9 where each mounting hole is located. A temperature control sensor switch 3 is also fixedly installed on the upper inner surface of the stainless steel mounting edge 9. Most of the mounting holes of the stainless steel mounting edge 9 are directly connected to the pre-set screw holes on the headlight assembly 10 using screws. A few mounting holes of the stainless steel mounting edge 9 are connected to the fixing parts on the vehicle body by bolts using the auxiliary support plate 6.

[0043] The air distribution pipe 8 is connected to the cooling pipe. That is, the air inlet of the air distribution pipe 8 is connected to the two-position two-way air circuit control solenoid valve 4 through the nylon pipe 5. The air inlet of the two-position two-way air circuit control solenoid valve 4 is then connected to the air circuit distributor 12 through the air source pressure regulating valve 2 and the manual ball valve 1. The air inlet of the air circuit distributor 12 is connected to the air outlet of the drying tank 13. The air inlet of the drying tank 13 is connected to the air outlet of the air compressor 14. The two-position two-way air circuit control solenoid valve 4 is also connected to the temperature control sensor switch 3.

[0044] A 10-hour lighting test was conducted on the fire truck. With the shim 7 at a height of 25mm, when the surface temperature of the headlight assembly 10 reached 100℃, the temperature control sensor switch 3 closed. At this time, the two-position, two-way air passage control solenoid valve 4 opened, and the air distribution pipe 8 blew air onto the headlight surface to cool it down. The effect was significantly different from the PC headlight covers used on the original fire truck. The original PC headlight covers melted after only 2 hours, causing varying degrees of damage to both the headlight assembly 10 and the PC headlight covers. After the 10-hour test, a visual inspection of the fire truck's headlight protective cover revealed that the surface of the headlight assembly 10 was intact, with no melting or deformation, and the stainless steel mounting edge 9 was also intact.

[0045] Example 4

[0046] The overall structure of the stainless steel protective cover for the fire truck headlight in this embodiment 4 includes a stainless steel mounting edge 9 and an auxiliary support plate 6. The outer contour of the stainless steel mounting edge 9 is adapted to the front shape of the headlight assembly 10. The outer surface of the stainless steel mounting edge 9 is laterally fixed with an air distribution pipe 8 and two steel rods 11. Mounting holes are provided at various fixed positions of the stainless steel mounting edge 9. A pad 7 is provided at the inner surface position of each mounting hole of the stainless steel mounting edge 9. A temperature control sensor switch 3 is also fixedly installed on the upper inner surface of the stainless steel mounting edge 9. Most of the mounting holes of the stainless steel mounting edge 9 are directly connected to the pre-set screw holes on the headlight assembly 10 using screws. A few mounting holes of the stainless steel mounting edge 9 are connected to the fixing parts on the vehicle body by bolts using the auxiliary support plate 6.

[0047] The air distribution pipe 8 is connected to the cooling pipe. That is, the air inlet of the air distribution pipe 8 is connected to the two-position two-way air circuit control solenoid valve 4 through the nylon pipe 5. The air inlet of the two-position two-way air circuit control solenoid valve 4 is then connected to the air circuit distributor 12 through the air source pressure regulating valve 2 and the manual ball valve 1. The air inlet of the air circuit distributor 12 is connected to the air outlet of the drying tank 13. The air inlet of the drying tank 13 is connected to the air outlet of the air compressor 14. The two-position two-way air circuit control solenoid valve 4 is also connected to the temperature control sensor switch 3.

[0048] The headlight protective cover of the fire truck underwent a corrosion resistance test by immersing the material in a 1% sodium hydroxide solution and observing and measuring the corrosion. After 24 hours of testing, the surface remained smooth, without spots or oxidation, demonstrating strong corrosion resistance and suitability for fire rescue in various scenarios.

[0049] Example 5

[0050] The overall structure of the stainless steel protective cover for the fire truck headlight in this embodiment 5 includes a stainless steel mounting edge 9 and an auxiliary support plate 6. The outer contour of the stainless steel mounting edge 9 is adapted to the front shape of the headlight assembly 10. The outer surface of the stainless steel mounting edge 9 is horizontally fixed with an air distribution pipe 8 and two steel rods 11. Mounting holes are provided at various fixed positions of the stainless steel mounting edge 9. A pad 7 is provided at the inner surface position of each mounting hole of the stainless steel mounting edge 9. A temperature control sensor switch 3 is also fixedly installed on the upper inner surface of the stainless steel mounting edge 9. Most of the mounting holes of the stainless steel mounting edge 9 are directly connected to the pre-set screw holes on the headlight assembly 10 using screws. A few mounting holes of the stainless steel mounting edge 9 are connected to the fixing parts on the vehicle body by bolts using the auxiliary support plate 6.

[0051] The air distribution pipe 8 is connected to the cooling pipe. That is, the air inlet of the air distribution pipe 8 is connected to the two-position two-way air circuit control solenoid valve 4 through the nylon pipe 5. The air inlet of the two-position two-way air circuit control solenoid valve 4 is then connected to the air circuit distributor 12 through the air source pressure regulating valve 2 and the manual ball valve 1. The air inlet of the air circuit distributor 12 is connected to the air outlet of the drying tank 13. The air inlet of the drying tank 13 is connected to the air outlet of the air compressor 14. The two-position two-way air circuit control solenoid valve 4 is also connected to the temperature control sensor switch 3.

[0052] The fire truck's headlight protective cover underwent a corrosion resistance test by immersing the material in a 1% (by weight) acetic acid solution and observing and measuring the corrosion. After 24 hours of testing, the surface remained smooth, without spots or oxidation, demonstrating strong corrosion resistance and suitability for fire rescue operations in various scenarios.

[0053] Example 6

[0054] The overall structure of the stainless steel protective cover for the fire truck headlight in this embodiment 6 includes a stainless steel mounting edge 9 and an auxiliary support plate 6. The outer contour of the stainless steel mounting edge 9 is adapted to the front shape of the headlight assembly 10. The outer surface of the stainless steel mounting edge 9 is horizontally fixed with an air distribution pipe 8 and two steel rods 11. Mounting holes are provided at various fixed positions of the stainless steel mounting edge 9. A pad 7 is provided at the inner surface position of each mounting hole of the stainless steel mounting edge 9. A temperature control sensor switch 3 is also fixedly installed on the upper inner surface of the stainless steel mounting edge 9. Most of the mounting holes of the stainless steel mounting edge 9 are directly connected to the pre-set screw holes on the headlight assembly 10 using screws. A few mounting holes of the stainless steel mounting edge 9 are connected to the fixing parts on the vehicle body by bolts using the auxiliary support plate 6.

[0055] The air distribution pipe 8 is connected to the cooling pipe. That is, the air inlet of the air distribution pipe 8 is connected to the two-position two-way air circuit control solenoid valve 4 through the nylon pipe 5. The air inlet of the two-position two-way air circuit control solenoid valve 4 is then connected to the air circuit distributor 12 through the air source pressure regulating valve 2 and the manual ball valve 1. The air inlet of the air circuit distributor 12 is connected to the air outlet of the drying tank 13. The air inlet of the drying tank 13 is connected to the air outlet of the air compressor 14. The two-position two-way air circuit control solenoid valve 4 is also connected to the temperature control sensor switch 3.

[0056] The fire truck headlight protective cover underwent a corrosion resistance test by immersing the material in a 0.5% (w / w) sulfuric acid solution and observing and measuring the corrosion. After 24 hours of testing, the surface remained smooth, without spots or oxidation, demonstrating strong corrosion resistance and suitability for fire rescue operations in various scenarios.

[0057] This utility model's fire truck headlight protective cover solves the problems of melting and poor chemical corrosion resistance of existing PC headlight covers. It can more effectively protect the headlight assembly, and the added pads prevent melting between the protective cover and the headlight assembly surface. It has a high temperature resistance coefficient and strong corrosion resistance, making it suitable for fire rescue in various scenarios. All sharp corners are rounded to ensure safety. The surface is smooth, easy to clean and maintain, and highly durable. Compared with plastic structures, it can withstand greater pressure and impact, reducing the frequency of maintenance and replacement.

Claims

1. A stainless steel protective cover for the headlights of a fire truck, characterized in that: Includes a stainless steel mounting edge (9) and an auxiliary support plate (6). The outer contour of the stainless steel mounting edge (9) is adapted to the front shape of the headlight assembly (10). The outer surface of the stainless steel mounting edge (9) is fixed with an air distribution pipe (8) and a steel rod (11) at horizontal intervals. Mounting holes are provided at each fixed position of the stainless steel mounting edge (9). A pad (7) is provided at the inner surface position of each mounting hole of the stainless steel mounting edge (9). Most of the mounting holes of the stainless steel mounting edge (9) are directly connected to the screw holes on the headlight assembly (10) by screws. A few mounting holes of the stainless steel mounting edge (9) are connected to the fixing parts on the vehicle body by bolts through the auxiliary support plate (6).

2. The stainless steel protective cover for the fire truck headlights according to claim 1, characterized in that: The air blowing manifold (8) is connected to the cooling pipe. The air inlet of the air blowing manifold (8) is connected to the two-position two-way air path control solenoid valve (4) through the nylon pipe (5). The air inlet of the two-position two-way air path control solenoid valve (4) is then connected to the air path distributor (12) through the air source pressure regulating valve (2) and the manual ball valve (1). The air inlet of the air path distributor (12) is connected to the air outlet of the drying tank (13). The air inlet of the drying tank (13) is connected to the air outlet of the air compressor (14). The two-position two-way air path control solenoid valve (4) is also connected to the temperature control sensor switch (3).

3. The stainless steel protective cover for the headlights of fire trucks according to claim 2, characterized in that: The temperature control sensor switch (3) is fixedly installed on the upper inner surface of the stainless steel mounting edge (9).

4. The stainless steel protective cover for the fire truck headlights according to claim 1, characterized in that: The two bends of the auxiliary support plate (6) are 90° and 150° respectively.

5. The stainless steel protective cover for the headlights of fire trucks according to claim 1, characterized in that: The thickness of the pad (7) is 20-25mm.

6. The stainless steel protective cover for the headlights of fire trucks according to claim 1, characterized in that: The curvature of the stainless steel mounting edge (9) is adapted to the curvature of the headlight assembly (10).

7. The stainless steel protective cover for the headlights of fire trucks according to claim 6, characterized in that: The auxiliary support plate (6) is connected to the stainless steel mounting edge (9) using bolts, nuts, spring washers, and flat washers.

8. The stainless steel protective cover for the headlights of fire trucks according to claim 6, characterized in that: The headlight assembly (10) has predetermined screw hole positions, and the corresponding stainless steel mounting edge (9) is connected to the fixing point of the headlight assembly (10) using self-tapping screws through a pad (7).

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