Automobile rear bottom protection plate with protection structure
By designing a car rear bottom guard with a composite protective structure, including carbonate protective panels, shock absorbing components and heat dissipation components, the existing car rear bottom guard has solved the problem of serious damage during collision, achieving better protection and convenience of use.
Patent Information
- Application Number
- CN202422290174.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing car rear bottom guard lacks protective structure and buffer structure, which causes huge impact force during external collisions, damages the car chassis and poses danger to the occupants.
A car rear bottom guard plate with a protective structure is designed, adopting a composite structure, including protective plates, shock absorbing components and heat dissipation components. The protective plate is made of carbonate material. The shock absorbing components absorb impact through slide rods, threaded grooves and shock absorbing springs. The heat dissipation components achieve ventilation, heat dissipation and sealing protection through heat dissipation fans and baffles.
This design can effectively withstand impact and wear, has good strength and durability, absorb external impact forces, provides good shock absorption and buffering, and cool down through ventilation, heat dissipation, improves convenience of use and reduces the risk to occupants.
Smart Images

Figure CN222973334U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automobile rear bottom guards, in particular to an automobile rear bottom guard with a protection structure. Background Art
[0002] With the increasing annual production and sales volume of automobiles, there are more and more cars on the road. The automobile chassis is composed of four parts: the powertrain, the running gear, the steering system, and the braking system. When the car is driving on an uneven road, it is easy to have friction and scraping on the bottom or the chassis is knocked. An automobile rear bottom guard is needed for protection. The automobile bottom guard is a protection device installed at the bottom of the car, usually made of plastic or metal, which is used to protect important components at the bottom of the car from damage by road gravel, mud and other sundries. It can also reduce wind resistance and lower the energy consumption of the car. However, most of the existing automobile rear bottom guards have simple structures, do not have good protection structures, nor buffer structures. When an external collision occurs, it will generate a huge impact force on the car, and the impact force will damage the automobile chassis, and in severe cases, it cannot be used, and it will also cause harm to the passengers in the car, even endangering the lives of the passengers, thus extremely affecting the use convenience of the entire automobile rear bottom guard. Content of the Utility Model
[0003] In order to overcome the problem that during the use of the rear bottom guard, due to the lack of a good protection structure and a buffer structure, when an external collision occurs, the impact force will damage the automobile chassis, and in severe cases, it cannot be used, and it will also cause harm to the passengers in the car.
[0004] The technical solution of the utility model is: an automobile rear bottom guard with a protection structure, which includes a fixing plate, and also includes a connecting frame, mounting holes, a connecting plate, a protection plate, threaded holes, through holes, a shock absorption component, a mounting groove and a heat dissipation component. A connecting plate is arranged at the lower end of the fixing plate, and a number of groups of threaded holes are opened at the bottom of the fixing plate. Through holes corresponding to the threaded holes are opened inside the connecting plate, and shock absorption components are arranged inside the through holes. A mounting groove is opened on the lower end surface of the fixing plate, and a heat dissipation component is arranged inside the mounting groove.
[0005] Preferably, by setting that the protection plate is made of polycarbonate material as a whole, it can withstand impact and wear, has good strength and durability. Then, through the shock absorption component, it can absorb the external impact force and has a good shock absorption and buffering effect, which can better protect the automobile chassis. Through the heat dissipation component, it can ventilate and dissipate heat from the automobile chassis. The good heat dissipation effect is convenient for the long-term use of the car, and it is also convenient to shield the heat dissipation fan in bad weather such as rain, playing a role of sealing and protection. Therefore, the use convenience of the entire rear bottom guard can be greatly improved.
[0006] Preferably, a connection frame is installed at the outer end of the fixed plate. A number of mounting holes are provided inside the connection frame, and are securely connected to the vehicle bottom by screws, ensuring easy disassembly and installation for regular maintenance and replacement.
[0007] Preferably, a protective plate is connected to the bottom of the connection plate. The protective plate is made of polycarbonate material as a whole, which can withstand impact and wear and has good strength and durability.
[0008] Preferably, the shock absorption component includes a slide bar, a threaded groove and a shock absorption spring. The slide bar is slidably connected to the inside of the through hole. A threaded groove is provided at the upper end of the outer side wall of the slide bar, and the threaded groove is threadedly connected to the inside of the threaded hole. A shock absorption spring is connected to the outer side wall of the slide bar and above the connection plate. A damper is provided on the shock absorption spring, which can absorb external impact force, has a good shock absorption and buffering effect, and can better protect the vehicle chassis.
[0009] Preferably, the heat dissipation component includes heat dissipation grooves, heat dissipation fans, limit sliding grooves, fixing blocks, drive motors, threaded lead screws, baffles, threaded blocks and limit sliders. Three groups of heat dissipation grooves are provided at the front end inside the installation groove, and heat dissipation fans are provided inside the three groups of heat dissipation grooves, which can ventilate and dissipate heat from the vehicle chassis. The good heat dissipation effect facilitates the long-term use of the vehicle.
[0010] Preferably, limit sliding grooves are provided on the left and right sides of the front end of the top of the installation groove, and fixing blocks are installed on the left and right sides of the rear end of the top of the installation groove. Drive motors are provided at the front ends of the two groups of fixing blocks, and threaded lead screws are connected to the front output ends of the two groups of drive motors. A baffle is provided between the two groups of threaded lead screws. Threaded blocks are installed at the rear ends of the left and right sides of the baffle, and the two groups of threaded blocks are respectively threadedly connected to the outer side walls of the two groups of threaded lead screws. By simultaneously starting the two groups of drive motors to drive the rotation of the threaded lead screws, the two groups of threaded blocks drive the movement and adjustment of the baffle, which is convenient for shielding the heat dissipation fans in bad weather such as rain, playing a role of sealing and protection.
[0011] Preferably, limit sliders are installed on the left and right sides of the front end of the top of the baffle, and the two groups of limit sliders are respectively slidably connected to the inside of the two groups of limit sliding grooves, improving the stability of the baffle during movement and avoiding displacement or falling off.
[0012] The beneficial effects of the present utility model:
[0013] 1. By setting up a composite structure of a protective plate, a shock-absorbing component, and a heat-dissipating component to replace the original single structure, it can withstand impacts and abrasions, has good strength and durability, and has a good shock-absorbing and buffering effect, which can better protect the vehicle chassis. It can also ventilate and dissipate heat from the vehicle chassis and shield the heat-dissipating fan in bad weather such as rain, playing a role of sealing protection, thereby improving the usability of the entire rear bottom guard to a certain extent.
[0014] 2. Since the protective plate is made of polycarbonate material as a whole, it can withstand impacts and abrasions and has good strength and durability.
[0015] 3. Through the shock-absorbing component, a damper is provided on the shock-absorbing spring, which can absorb external impact forces, has a good shock-absorbing and buffering effect, and can better protect the vehicle chassis.
[0016] 4. Through the heat-dissipating component, when the heat-dissipating fan is started, it can ventilate and dissipate heat from the vehicle chassis. The good cooling effect facilitates the long-term use of the vehicle. The movement and adjustment of the baffle facilitate shielding the heat-dissipating fan in bad weather such as rain, playing a role of sealing protection, and improving the stability of the baffle during movement, avoiding displacement or falling off. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 Shows the first three-dimensional structural schematic diagram of the present utility model;
[0018] Figure 2 Shows the second three-dimensional structural schematic diagram of the present utility model;
[0019] Figure 3 Shows the three-dimensional structural schematic diagram of the shock-absorbing component installation of the present utility model;
[0020] Figure 4 Shows the three-dimensional structural schematic diagram of the heat-dissipating component installation of the present utility model;
[0021] Figure 5 Shows the exploded three-dimensional structural schematic diagram of the heat-dissipating component of the present utility model.
[0022] DESCRIPTION OF THE REFERENCE NUMERALS: 1 - fixing plate, 2 - connecting frame, 3 - mounting hole, 4 - connecting plate, 5 - protective plate, 6 - threaded hole, 7 - through hole, 8 - shock-absorbing component, 9 - mounting groove, 10 - heat-dissipating component, 801 - sliding rod, 802 - threaded groove, 803 - shock-absorbing spring, 101 - heat dissipation slot, 102 - heat-dissipating fan, 103 - limiting sliding groove, 104 - fixing block, 105 - driving motor, 106 - threaded lead screw, 107 - baffle, 108 - threaded block, 109 - limiting slider. DETAILED DESCRIPTION OF THE INVENTION
[0023] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0024] Please refer to Figures 1-3 , the present utility model provides an embodiment: an automotive rear underbody guard with a protection structure, including a fixing plate 1, and further including a connecting frame 2, mounting holes 3, a connecting plate 4, a protection plate 5, threaded holes 6, through holes 7, a shock absorption assembly 8, a mounting groove 9 and a heat dissipation assembly 10. A connecting frame 2 is installed at the outer end of the fixing plate 1, and a plurality of mounting holes 3 are provided inside the connecting frame 2, which are securely connected to the vehicle bottom by screws, and are easy to disassemble and install, facilitating regular maintenance and replacement. A connecting plate 4 is provided at the lower end of the fixing plate 1, and a protection plate 5 is connected to the bottom of the connecting plate 4. The protection plate 5 is made of polycarbonate material as a whole, which can withstand impact and wear, and has good strength and durability. A plurality of groups of threaded holes 6 are provided at the bottom of the fixing plate 1, and through holes 7 corresponding to the threaded holes 6 are provided inside the connecting plate 4. Shock absorption assemblies 8 are provided inside the through holes 7. The shock absorption assembly 8 includes a sliding rod 801, a threaded groove 802 and a shock absorption spring 803. The sliding rod 801 is slidably connected to the inside of the through hole 7. A threaded groove 802 is provided at the upper end of the outer side wall of the sliding rod 801, and the threaded groove 802 is threadedly connected to the inside of the threaded hole 6. A shock absorption spring 803 is connected to the outer side wall of the sliding rod 801 and above the connecting plate 4. A damper is provided on the shock absorption spring 803, which can absorb external impact force and has a good shock absorption and buffering effect, and can better protect the vehicle chassis.
[0025] Please refer to Figures 4-5, in this embodiment, an installation groove 9 is provided on the lower end surface of the fixed plate 1, and a heat dissipation component 10 is arranged inside the installation groove 9. The heat dissipation component 10 includes a heat dissipation groove 101, a heat dissipation fan 102, a limit sliding groove 103, a fixed block 104, a driving motor 105, a threaded lead screw 106, a baffle 107, a threaded block 108, and a limit slider 109. Three heat dissipation grooves 101 are provided at the front end inside the installation groove 9, and heat dissipation fans 102 are arranged inside all three heat dissipation grooves 101, which can ventilate and dissipate heat from the vehicle chassis. The good cooling effect facilitates the long-term use of the vehicle. Limit sliding grooves 103 are provided on the left and right sides at the front end of the top of the installation groove 9, and fixed blocks 104 are installed on the left and right sides at the rear end of the top of the installation groove 9. Driving motors 105 are provided at the front ends of the two fixed blocks 104. The front output ends of the two driving motors 105 are both connected with threaded lead screws 106. A baffle 107 is arranged between the two threaded lead screws 106. Threaded blocks 108 are installed at the rear ends of the left and right sides of the baffle 107, and the two threaded blocks 108 are respectively threadedly connected with the outer side walls of the two threaded lead screws 106. By simultaneously starting the two driving motors 105 to drive the rotation of the threaded lead screws 106, the two threaded blocks 108 drive the movement adjustment of the baffle 107, which is convenient for shielding the heat dissipation fans 102 in bad weather with rain, playing a role of sealing and protection. Limit sliders 109 are installed on the left and right sides at the front end of the top of the baffle 107, and the two limit sliders 109 are respectively slidably connected with the inside of the two limit sliding grooves 103, improving the stability of the baffle 107 during movement and avoiding the phenomenon of displacement or detachment.
[0026] When the rear bottom guard plate is working, first, a connection frame 2 is installed at the outer end of the fixed plate 1. A plurality of installation holes 3 are provided inside the connection frame 2. It is securely connected to the vehicle bottom through screws, and is easy to disassemble and install, facilitating regular maintenance and replacement. A protection plate 5 is connected to the bottom of the connection plate 4. The protection plate 5 is made of polycarbonate material as a whole, which can withstand impact and wear, and has good strength and durability.
[0027] Then, through the shock absorption component 8, the slide bar 801 is slidably connected with the inside of the through hole 7. A threaded groove 802 is provided on the upper end of the outer side wall of the slide bar 801, and the threaded groove 802 is threadedly connected with the inside of the threaded hole 6. A shock absorption spring 803 is connected to the upper end of the outer side wall of the slide bar 801 and located on the connection plate 4. A damper is arranged on the shock absorption spring 803, which can absorb external impact force and has a good shock absorption and buffering effect, and can better protect the vehicle chassis.
[0028] Then, through the heat dissipation component 10, heat dissipation fans 102 are arranged inside each of the three groups of heat dissipation grooves 101, which can ventilate and dissipate heat from the vehicle chassis. The good cooling effect facilitates the long-term use of the vehicle. Then, two driving motors 105 are started simultaneously to drive the rotation of the threaded screw rod 106, so that the two threaded blocks 108 drive the movement and adjustment of the baffle 107, which is convenient for shielding the heat dissipation fan 102 in bad weather with rain, playing a role of sealing and protection. On the left and right sides of the front end of the top of the baffle 107, limit sliders 109 are installed, and the two limit sliders 109 are respectively slidably connected to the inside of the two limit chutes 103, improving the stability of the baffle 107 during movement and avoiding the phenomenon of displacement or detachment.
[0029] Through the above steps, the protective plate 5 is made of polycarbonate material as a whole, which can withstand impact and wear, and has good strength and durability. Then, through the shock absorption component 8, it can absorb external impact force and has a good shock absorption and buffering effect, which can better protect the vehicle chassis. Then, the heat dissipation fan 102 is started, which can ventilate and dissipate heat from the vehicle chassis. The good cooling effect facilitates the long-term use of the vehicle. Then, two driving motors 105 are started simultaneously to drive the rotation of the threaded screw rod 106, so that the two threaded blocks 108 drive the movement and adjustment of the baffle 107, which is convenient for shielding the heat dissipation fan 102 in bad weather with rain, playing a role of sealing and protection, and improving the stability when the baffle 107 moves, avoiding the phenomenon of displacement or detachment. Furthermore, the use convenience of the entire positioning and drilling device can be greatly improved.
[0030] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present invention.
Claims
1. A rear underbody guard plate of an automobile having a protective structure, comprising a fixing plate (1); characterized in that: The invention also comprises a connection frame (2), a mounting hole (3), a connection plate (4), a protective plate (5), a threaded hole (6), a through hole (7), a shock absorbing component (8), a mounting groove (9) and a heat dissipation component (10). The lower end of the fixing plate (1) is provided with a connection plate (4), the bottom of the fixing plate (1) is provided with a plurality of groups of threaded holes (6), the inside of the connection plate (4) is provided with through holes (7) corresponding to the threaded holes (6), the inside of the through holes (7) is provided with a shock absorbing component (8), the lower end surface of the fixing plate (1) is provided with a mounting groove (9), and the inside of the mounting groove (9) is provided with a heat dissipation component (10).
2. The automobile rear underbody guard plate with a protective structure according to claim 1, characterized in that: A connection frame (2) is installed at the outer end of the fixing plate (1), and a plurality of installation holes (3) are provided inside the connection frame (2).
3. The automobile rear underbody guard plate with a protective structure according to claim 1, characterized in that: The bottom of the connecting plate (4) is connected to a protective plate (5), and the protective plate (5) is entirely made of carbonate material.
4. The automobile rear underbody guard plate with a protective structure according to claim 1, characterized in that: The shock absorbing assembly (8) comprises a slide bar (801), a threaded groove (802) and a shock absorbing spring (803); the slide bar (801) is slidably connected to the inside of the through hole (7); the upper end of the outer wall of the slide bar (801) is provided with a threaded groove (802); the threaded groove (802) is threadably connected to the inner part of the threaded hole (6); the outer wall of the slide bar (801) and the upper end of the connecting plate (4) are connected to the shock absorbing spring (803); and a damper is provided on the shock absorbing spring (803).
5. The automobile rear underbody guard plate with a protective structure according to claim 1, characterized in that: The heat dissipation assembly (10) comprises a heat dissipation groove (101), a heat dissipation fan (102), a limit slide groove (103), a fixing block (104), a driving motor (105), a threaded screw (106), a baffle (107), a threaded block (108) and a limit slide block (109). Three groups of heat dissipation grooves (101) are provided at the front end of the interior of the installation groove (9), and the heat dissipation fans (102) are all provided inside the three groups of heat dissipation grooves (101).
6. The automobile rear underbody guard plate with a protective structure according to claim 5, characterized in that: Limiting slide grooves (103) are provided on both left and right sides of the front end of the top of the installation groove (9), and fixed blocks (104) are installed on both left and right sides of the rear end of the top of the installation groove (9). Drive motors (105) are provided at the front ends of the two sets of fixed blocks (104), and threaded screws (106) are connected to the front output ends of the two sets of drive motors (105). A baffle (107) is provided between the two sets of threaded screws (106), and threaded blocks (108) are installed on the rear ends of the left and right sides of the baffle (107), and the two sets of threaded blocks (108) are respectively threadedly connected to the outer walls of the two sets of threaded screws (106).
7. The automobile rear underbody guard plate with a protective structure according to claim 5, characterized in that: Limiting slide blocks (109) are installed on both left and right sides of the front end of the top of the baffle (107), and the two groups of limiting slide blocks (109) are respectively slidably connected to the inside of the two groups of limiting sliding grooves (103).