Rear part protection and rear lower part protection device for special vehicle

Abstract

A rear protection and rear lower part protection device of a special vehicle comprises a tail lamp plate welding part which is installed on a tail lamp plate supporting welding part and made of aluminum alloy materials, and further comprises an outer sealing plate, a tail lamp plate and an inner sealing plate, the inner side of the outer sealing plate is welded to the tail lamp plate, the two ends of the tail lamp plate are welded to the outer sealing plate and the inner sealing plate respectively, and the tail lamp plate and the inner sealing plate are welded to the tail lamp plate. The rear protection device is novel in structure, on one hand, the rear protection device is made of aluminum alloy materials, the weight is light, the design requirement for light weight is met, the rear protection device is connected with a frame girder through bolts, and the rear protection device is not prone to falling off due to the fact that the rear protection device is not prone to falling off due to the fact that the inner side of the inner sealing plate is welded to the tail lamp plate and is provided with a rectangular hole used for fixing the combined tail lamp and a vehicle tail identification plate. Component parts of the rear protection device are connected through bolts, the assembly type structure is convenient to install and maintain, and meanwhile the maintenance cost is reduced. And a reinforced supporting part is arranged on the rear protection device, so that the rear protection device has enough blocking capacity and can meet the requirements specified by the standard.

Description

Technical Field

[0001] This utility model relates to a protective device, specifically a rear protection and lower rear protection device for a special vehicle. Background Technology

[0002] The rear protective devices of some special-purpose vehicles are required to have a certain ability to block forces acting parallel to the vehicle's longitudinal axis, and this blocking ability should meet the requirements specified in the standards. The rear underrun protection devices should have sufficient blocking ability against rear-end collisions in the direction parallel to the vehicle's longitudinal axis to prevent underrunning collisions, and this blocking ability should also meet the requirements specified in the standards. Therefore, some special-purpose vehicles need to have their rear and rear underrun protection devices designed accordingly to meet the blocking capabilities required by the standards.

[0003] The following problems exist with the rear protective devices of some special vehicles: 1. The rear protective devices are made of carbon steel, which makes them heavy; 2. The rear protective devices are made of welded structures, which takes a long time to manufacture; 3. The entire rear protective device needs to be replaced after a rear-end collision, resulting in high repair costs; 4. The overall strength of the rear protective devices is low, and their blocking ability is insufficient. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a special vehicle rear protection and rear under-body protection device, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The present invention includes a taillight panel welding assembly, which is installed on a taillight panel support welding assembly and is made of aluminum alloy material. It also includes an outer sealing plate, a taillight panel, and an inner sealing plate. The inner side of the outer sealing plate is welded to the taillight panel, and the two ends of the taillight panel are respectively welded to the outer sealing plate and the inner sealing plate. The inner side of the inner sealing plate is welded to the taillight panel and has a rectangular hole for fixing the combined taillight and the vehicle rear marking plate.

[0006] The rear panel is installed on the taillight plate support welding and is used to fix the license plate plate, license plate light, rear fog light, product nameplate mounting plate, and dangerous goods sign mounting plate.

[0007] The frame beam is a part of the vehicle frame assembly and is used to fix and reinforce the crossbeam welding, taillight plate support welding, and diagonal support plate.

[0008] The license plate is installed on the rear panel;

[0009] License plate lights are mounted on the rear panel;

[0010] The combined taillights are welded onto the taillight panel.

[0011] The reinforcement beam is welded together and installed on the inner side of the frame beam. It also includes a reinforcement beam and a beam end plate. The two ends of the reinforcement beam are welded to the beam end plate, and the beam end plate is fixed to the frame beam with bolts.

[0012] The taillight panel is welded and mounted on the vehicle frame beam. It adopts a welded structure, including an outer connecting plate I, a support tube, an outer connecting plate II, an inner connecting plate, and a sealing plate I. The outer connecting plate I is welded to the support tube for fixing the taillight panel. The support tube is welded to the inner connecting plate. The outer connecting plate II is welded to the support tube for fixing the taillight panel. One end of the inner connecting plate is fixed to the vehicle frame beam with bolts, and the other end is used to fix the rear panel. The sealing plate I is welded to both ends of the support tube for sealing.

[0013] The lower crossbeam is welded and installed on the inclined support plate as the main body of the rear lower protection device. It includes the lower crossbeam, sealing plate II, lower crossbeam connecting plate and fixing plate. The lower crossbeam is welded to the fixing plate. The sealing plate II is welded to both ends of the lower crossbeam for sealing. The lower crossbeam connecting plate is welded to the fixing plate and bolted to the inclined support plate. The fixing plate is welded to the lower crossbeam and the lower crossbeam connecting plate.

[0014] The inclined support plate is installed on the frame beam and is used to fix the lower crossbeam welding.

[0015] A triangular retroreflector is installed on the welded lower crossbeam;

[0016] The vehicle's rear identification plate is welded onto the taillight panel;

[0017] The product nameplate mounting plate is installed on the lower part of the rear panel and is used to install the product nameplate.

[0018] Dangerous goods sign mounting plate, installed on the lower part of the rear panel, is used to install dangerous goods signs;

[0019] The rear fog light is installed on the lower part of the rear panel.

[0020] Preferably, the taillight panel, outer sealing plate, and inner sealing plate are connected by welding.

[0021] Preferably, the reinforcing crossbeam and the crossbeam sealing plate of the reinforcing crossbeam are welded together, and the crossbeam is bolted to the frame beam.

[0022] Preferably, the components of the taillight panel support are welded together to form a stable support structure, providing reliable fixation for the taillight panel welding and the rear panel.

[0023] Preferably, the welded connection of the lower crossbeam, the fixing plate, and the lower crossbeam connecting plate is combined with the bolt connection of the inclined support plate to construct a stable rear lower protection main structure.

[0024] Beneficial effects: Firstly, the rear protective device is made of aluminum alloy, making it lightweight and meeting the requirements of lightweight design. The rear protective device is bolted to the chassis beam, and all components of the rear protective device are bolted together. This modular structure facilitates installation and maintenance, while also reducing maintenance costs. Reinforced support components are installed on the rear protective device, giving it sufficient stopping power to meet the requirements specified in the standards.

[0025] On the other hand, the rear underrun protection device is made of high-strength steel and is bolted to the chassis beam. All components of the rear underrun protection device are bolted together, making this modular structure convenient for disassembly and maintenance, while also reducing maintenance costs. Reinforcing components are installed on the inner side of the corresponding chassis beam to increase the blocking capacity of the rear underrun protection device, ensuring it meets the requirements specified in the standards. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a utility model Figure 1 A cross-sectional view along the AA direction;

[0029] Figure 3 This is a utility model Figure 1 Cross-sectional view along the BB direction;

[0030] Figure 4 This is a schematic diagram of the welded structure of the taillight plate of this utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the taillight plate support welding of this utility model;

[0032] Figure 6 This is a schematic diagram of the welded structure of the lower crossbeam of this utility model;

[0033] Figure 7 This is a schematic diagram of the structure of the reinforced crossbeam welding of this utility model. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-7 The specific embodiments of this utility model will be described in further detail.

[0035] Example 1, by Figure 1-7This utility model provides a special vehicle rear protection and rear underrun protection device, with the taillight plate welded together:

[0036] Made of aluminum alloy, it boasts advantages such as light weight and corrosion resistance. It mainly consists of an outer sealing plate 18, a taillight plate 19, and an inner sealing plate 20. The inner side of the outer sealing plate 18 is firmly welded to the taillight plate 19. The outer sealing plate 18 and inner sealing plate 20 are precisely welded to both ends of the taillight plate 19. The inner sealing plate 20 is welded to the taillight plate 19 and has rectangular holes. This structure is specifically designed to fix the combined taillight 6 and the vehicle rear marking plate 12. The combined taillight 6, installed on this structure, can clearly emit or reflect light signals to road users behind, indicating the vehicle's presence and changes in movement in real time, such as light signals during turning and braking, effectively preventing rear-end collisions. The vehicle rear marking plate 12 has a retroreflective function, significantly increasing the vehicle's visibility at night or in low-light conditions, allowing following vehicles to notice its position earlier.

[0037] Rear panel 2:

[0038] The taillight support weld 8 is a key load-bearing component of the rear protection device. Its surface has multiple mounting positions strategically arranged to securely fix the license plate 4, license plate light 5, rear fog light 17, product nameplate mounting plate 14, and hazardous materials sign mounting plate 16. The license plate 4, as a legally mandated symbol for motor vehicles on the road, must be clearly visible; its installation here ensures compliance with regulations. The license plate light 5 illuminates the license plate area at night or in low light conditions, ensuring clear visibility of the license plate information. The rear fog light 17 plays a crucial role in low-visibility weather such as fog and rain, emitting strong penetrating light to indicate the vehicle's position to the rear and reduce the risk of rear-end collisions. The product nameplate mounting plate 14 provides a mounting base for the product nameplate 13, facilitating the display of important information such as the vehicle model. The hazardous materials sign mounting plate 16 provides a dedicated mounting position for the hazardous materials sign 15, clearly indicating the vehicle's transport attributes for hazardous materials transport vehicles, ensuring road safety.

[0039] Chassis beam 3:

[0040] As an indispensable part of the vehicle frame assembly, it provides solid support for the entire rear protective structure. It bears the heavy responsibility of fixing and reinforcing the crossbeam welding 7, taillight plate support welding 8, and diagonal support plate 10, ensuring that each component remains stable when the vehicle is in motion, vibrating, or being impacted, and reasonably distributing and transmitting forces to maintain the overall structural strength of the vehicle.

[0041] License Plate 4:

[0042] Made and installed in strict accordance with the regulations for the management of motor vehicles on the road, it is a legal identification mark for vehicles to be legally driven on the road. It clearly displays the vehicle license plate information so that traffic management departments and other road users can identify the vehicle.

[0043] License plate light 5:

[0044] Employing high-brightness, low-energy-consumption lighting elements, which are installed at specific locations on the rear panel 2, the system precisely projects light onto the license plate area. In dimly lit environments, such as at night, in underground parking lots, or on cloudy days, the system automatically or manually activates to ensure the license plate information is clearly legible, meeting traffic regulations for vehicle lighting and preventing traffic violations caused by unclear license plates.

[0045] Combination taillights 6:

[0046] It integrates multiple lighting functions, such as brake lights, turn signals, and parking lights. Through carefully designed circuit connections and controls, it accurately sends corresponding light signals to road users behind based on changes in vehicle driving status, such as braking, lane changing, and normal driving. Mounted on the taillight panel weld 1, its stable structure ensures stable light position and reliable illumination, effectively preventing collisions caused by following vehicles misjudging the vehicle's status.

[0047] Strengthen the welding of the crossbeam 7:

[0048] Located inside the frame beam 3, this is a core component for enhancing rear underrun protection. It is constructed by welding a reinforcing crossbeam 30 to a crossbeam end plate 31. The ends of the reinforcing crossbeam 30 are tightly welded to the crossbeam end plate 31, forming a robust whole. The crossbeam end plate 31 is then reliably bolted to the frame beam 3. When the rear of the vehicle is impacted, especially by forces from below, this structure, with its own strength and optimized connection design, effectively disperses the impact force, preventing severe deformation of the rear of the vehicle, protecting the safety of the occupants, and reducing the extent of vehicle damage.

[0049] Taillight panel support welding 8:

[0050] The complex yet robust structure, constructed using welding technology, comprises an outer connecting plate I 21, a support tube 22, an outer connecting plate II 23, an inner connecting plate 24, and a sealing plate I 25. The outer connecting plates I 21 and II 23 are welded to corresponding positions on the support tube 22 to precisely secure the taillight panel welding 1, ensuring its firm installation and that of its associated components. The support tube 22 is welded to the inner connecting plate 24, one end of which is bolted to the frame beam 3, while the other end is used to secure the rear panel 2. This design creates an organic whole for the entire rear protective device, with each component working together to bear the load. The sealing plate I 25 is welded to both ends of the support tube 22, effectively sealing both ends to prevent dust and moisture from entering the internal structure and extending the component's lifespan.

[0051] Lower crossbeam welding 9:

[0052] As the main structural component of the rear underrun protection device, it undertakes the primary task of resisting rear-under impacts. It consists of a lower crossbeam 26, a sealing plate II 27, a lower crossbeam connecting plate 28, and a fixing plate 29. The lower crossbeam 26 is firmly welded to the fixing plate 29, forming a basic support frame. The sealing plate II 27 is welded to both ends of the lower crossbeam 26 to ensure tight internal structural protection. The lower crossbeam connecting plate 28 is welded to the fixing plate 29 and tightly connected to the inclined support plate 10 via bolts. Finally, it is connected to the frame beam 3 via the inclined support plate 10, constructing a stable rear underrun protection structure. In the event of a rear-under impact, it effectively blocks external forces and protects critical vehicle components, such as the fuel tank and spare tire, from damage.

[0053] Inclined support plate 10:

[0054] Mounted on the frame beam 3, its inclined design allows it to better bear and distribute the force from the lower crossbeam weld 9. On the one hand, it provides a stable support point for the lower crossbeam weld 9, ensuring its positional stability when subjected to an impact; on the other hand, it decomposes and transmits the impact force to the frame beam 3, avoiding excessive local stress and ensuring the overall structural safety of the vehicle.

[0055] Triangular reflector 11:

[0056] Installed on the lower crossbeam weld 9, it operates using the principle of optical reflection. Its unique triangular shape and highly reflective material can efficiently reflect light from external light sources, such as headlights from vehicles behind, at night or in low-light conditions. This clearly indicates the vehicle's presence to observers near the light source, allowing following vehicles to detect it in advance, even when the vehicle is stationary or moving, effectively preventing rear-end collisions. Its effectiveness is particularly pronounced on roads with poor visibility, such as those without streetlights or curves.

[0057] Vehicle rear identification plate 12:

[0058] Made of materials with high retroreflective properties, it is installed on the taillight panel welded together. Its surface is usually printed with specific patterns or logos, such as vehicle brand logos, warning symbols, etc. Under illumination, it can reflect light back to the direction of the light source, greatly improving the visibility of the vehicle in adverse environments such as night and fog, allowing road users behind to identify the vehicle's outline and features from a distance, thus ensuring driving safety.

[0059] Product nameplate mounting plate 14:

[0060] Located at the lower part of the rear panel 2, a standard mounting interface is designed to facilitate the installation and removal of the product nameplate 13. The product nameplate 13 carries key information such as vehicle model, manufacturer, and production date. Displayed through this mounting plate, it facilitates quick access to information during vehicle maintenance, repair, and quality traceability.

[0061] Dangerous Goods Sign Mounting Plate 16:

[0062] Also located on the lower part of the rear panel 2, a dedicated mounting position is provided for the hazard identification sign 15. For special vehicles transporting flammable, explosive, toxic, or hazardous materials, regulations require that the hazard identification sign 15 be prominently installed. This mounting plate ensures that the sign is securely installed and in the correct location, clearly warning other road users of the dangers of the goods being transported by the vehicle, prompting them to maintain a safe distance and avoid potential hazards.

[0063] Rear fog light 17:

[0064] Fog light bulbs with strong penetrating power and standard color are selected and installed in a specific position on the lower part of the rear panel 2. When turned on in low visibility weather conditions such as fog, haze, and heavy rain, the strong light emitted can penetrate fog and raindrops and travel a long distance to the rear, allowing following vehicles to clearly see the position of this vehicle and take measures such as braking and avoidance in advance, effectively reducing the risk of rear-end collisions and ensuring the safety of multiple vehicles.

[0065] Working principle: When using this utility model, firstly, the frame beam 3 is installed as a basic support component in the corresponding position of the vehicle chassis, ensuring a firm connection and that the bolt tightening torque meets the specified standard, so that the frame beam 3 can stably bear the weight and force of the subsequent components; then, the reinforcing crossbeam weld 7 is tightly fixed to the designated position inside the frame beam 3 with bolts through the crossbeam sealing plate 31, and the welding parts are checked for defects to ensure that it can effectively enhance the rear underbody protection capability;

[0066] Install the taillight panel support welding 8, and precisely fix one end of the inner connecting plate 24 to the frame beam 3 with bolts to ensure that the installation angle and level meet the requirements. Then, weld the outer connecting plate I 21, the support tube 22, the outer connecting plate II 23 and the sealing plate I 25 in sequence to complete the main structure assembly of the taillight panel support welding 8, providing a stable foundation for the subsequent component installation.

[0067] Install the taillight panel welding 1 on the taillight panel support welding 8, align the rectangular hole of the inner sealing plate 20 with the connection part of the taillight panel support welding 8, ensure tight installation and firm welding parts, and ensure that the taillight 6 and the vehicle rear marking plate 12 are stable and reliable after assembly.

[0068] Install the rear panel 2 onto the taillight plate support welding 8. According to the design layout, fix the license plate 4, license plate light 5, rear fog light 17, product nameplate mounting plate 14, and dangerous goods sign mounting plate 16 in sequence. Tighten the mounting screws of each component, ensure the wiring is correct, and ensure normal function.

[0069] To install the lower crossbeam welding 9, first weld the lower crossbeam 26 to the fixing plate 29 as one piece, install the sealing plate II 27 to seal both ends, then weld the lower crossbeam connecting plate 28 to the fixing plate 29, and finally connect the lower crossbeam connecting plate 28 to the inclined support plate 10 with bolts. The other end of the inclined support plate 10 is fixed to the frame beam 3. After completion, the lower protection main structure is built. Check the strength of each connection part to ensure that it can withstand the impact from the rear.

[0070] After installation, a comprehensive inspection of the entire protective device is carried out, including the installation firmness of each component, welding quality, and functional testing of lighting and electrical components. Only after ensuring that everything is in good working order can the vehicle be driven on it.

[0071] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A special-purpose vehicle rear protection and lower rear protection device, comprising: a tail lamp plate welding assembly mounted on a tail lamp plate support welding assembly (8) and made of aluminum alloy, further comprising an outer sealing plate (18), a tail lamp plate (19), and an inner sealing plate (20), the inner side of the outer sealing plate (18) being welded to the tail lamp plate (19), the two ends of the tail lamp plate (19) being welded to the outer sealing plate (18) and the inner sealing plate (20) respectively, and the inner side of the inner sealing plate (20) being welded to the tail lamp plate (19) and having a rectangular hole for fixing a combined rear tail lamp (6) and a vehicle rear identification plate (12); a rear panel (2) mounted on the tail lamp plate support welding assembly (8) for fixing a license plate (4), a license plate lamp (5), a rear fog lamp (17), a product nameplate mounting plate (14), and a dangerous goods identification plate mounting plate (16); a frame beam (3) belonging to a vehicle frame assembly for fixing a reinforcing beam welding assembly (7), the tail lamp plate support welding assembly (8), and an inclined support plate (10); the license plate (4) mounted on the rear panel (2); the license plate lamp (5) mounted on the rear panel (2); the combined rear tail lamp (6) mounted on the tail lamp plate welding assembly (1); the reinforcing beam welding assembly (7) mounted on the inner side of the frame beam (3) and further comprising a reinforcing beam (30) and a beam sealing plate (31), the two ends of the reinforcing beam (30) being welded to the beam sealing plate (31), and the beam sealing plate (31) being bolted to the frame beam (3); the tail lamp plate support welding assembly (8) mounted on the frame beam (3) and having a welded structure, comprising an outer connecting plate I (21), a support tube (22), an outer connecting plate II (23), an inner connecting plate (24), and a sealing plate I (25), the outer connecting plate I (21) being welded to the support tube (22) for fixing the tail lamp plate welding assembly (1), the support tube (22) being welded to the inner connecting plate (24), the outer connecting plate II (23) being welded to the support tube (22) for fixing the tail lamp plate welding assembly (1), one end of the inner connecting plate (24) being bolted to the frame beam (3), the other end being used for fixing the rear panel (2), and the sealing plate I (25) being welded to the two ends of the support tube (22) for sealing; a lower beam welding assembly (9) mounted on the inclined support plate (10) and serving as the main body of the lower rear protection device, comprising a lower beam (26), a sealing plate II (27), a lower beam connecting plate (28), and a fixing plate (29), the lower beam (26) being welded to the fixing plate (29), the sealing plate II (27) being welded to the two ends of the lower beam (26) for sealing, the lower beam connecting plate (28) being welded to the fixing plate (29) and bolted to the inclined support plate (10), and the fixing plate (29) being welded to the lower beam (26) and the lower beam connecting plate (28); the inclined support plate (10) mounted on the frame beam (3) for fixing the lower beam welding assembly (9); a triangular return reflector (11) mounted on the lower beam welding assembly (9); the vehicle rear identification plate (12) mounted on the tail lamp plate welding assembly (1); The product nameplate mounting plate (14) is installed at the lower part of the rear panel (2) and used for mounting the product nameplate (13); The dangerous goods identification plate mounting plate (16) is installed at the lower part of the rear panel (2) and used for mounting the dangerous goods identification plate (15); The rear fog lamp (17) is installed at the lower part of the rear panel (2).

2. The utility vehicle rear protection and rear underguard apparatus of claim 1, wherein, The tail lamp plate (19) and the outer sealing plate (18) and the inner sealing plate (20) are connected by welding.

3. The utility vehicle rear protection and rear underguard apparatus of claim 1, wherein, The reinforcing crossbeam (30) of the reinforcing crossbeam welding (7) and the crossbeam sealing plate (31) are connected by welding and bolted to the frame girder (3).

4. The utility vehicle rear protection and rear underguard apparatus of claim 1, wherein, The components of the tail lamp plate support welding (8) are combined by welding to form a stable support structure, which provides reliable fixation for the tail lamp plate welding (1) and the rear panel (2).

5. The utility vehicle rear protection and rear underguard apparatus of claim 1, wherein, The welding connection of the lower crossbeam (26), the fixed plate (29) and the lower crossbeam connecting plate (28) of the lower crossbeam welding (9) and the bolt connection of the inclined support plate (10) construct a stable rear lower protection main structure.

6. The utility vehicle rear protection and rear underguard apparatus of claim 1, wherein, The license plate (4), the license plate lamp (5), the rear fog lamp (17), the product nameplate mounting plate (14) and the dangerous goods identification plate mounting plate (16) are detachably installed on the rear panel (2).

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