Protective supporting plate for automobile chassis assembly

By incorporating quick-release components and electromagnets, the design solves the problems of cumbersome installation and removal of protective trays and the lack of automatic detachment functionality, enabling rapid installation, removal, and automatic detachment, thereby improving maintenance efficiency and vehicle safety.

CN224117230UActive Publication Date: 2026-04-14山东飞超新能源科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
山东飞超新能源科技有限公司
Filing Date
2025-05-21
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing car chassis protection plates are cumbersome to install and remove and lack automatic detachment functions, making maintenance and replacement inconvenient and potentially damaging to the chassis in special circumstances.

Method used

It adopts a quick-release component and electromagnet design. The quick-release component includes a fixing plate, cavity, slide plate, bolt, ring groove, insertion hole and slot. The electromagnet automatically unlocks to achieve quick installation, disassembly and automatic detachment.

Benefits of technology

It enables the rapid installation and removal of protective plates, improves maintenance and replacement efficiency, reduces the risk of chassis damage, and enhances vehicle driving safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile chassis protection, in particular to an automobile chassis assembly protection supporting plate which comprises a protection supporting plate body and quick release assemblies, the protection supporting plate body is of a concave structure with the middle concave and the two protruding sides, and the quick release assemblies are arranged on the two side edges of the protection supporting plate body. The quick release assembly comprises a fixing plate and clamping bolts, the clamping bolts are uniformly and fixedly arranged at the edges of the two sides of the protective supporting plate, annular grooves are formed in the annular faces of the clamping bolts, the fixing plate is arranged on the upper sides of the edges of the two sides of the protective supporting plate, inserting holes matched with the clamping bolts are formed in the positions, corresponding to the clamping bolts, of the bottom of the fixing plate, and groove cavities are formed in the fixing plate. Sliding plates are longitudinally arranged in the groove cavity in parallel, and clamping grooves matched with the clamping bolts are formed in the positions, corresponding to the clamping bolts, of the sliding plates. Through the design of the quick release component, the mounting and dismounting time and energy are greatly saved, the quick connection and dismounting of the supporting plate body and the automobile chassis assembly are realized, the maintenance and replacement efficiency is greatly improved, and the time and labor cost are saved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive chassis protection technology, and more specifically, to an automotive chassis assembly protective support plate. Background Technology

[0002] As a core component of a vehicle, the chassis supports numerous structural components such as the engine, transmission, and suspension, acting like the foundation of the car. During driving, the chassis is susceptible to damage from road debris, rain, and mud corrosion. To protect the chassis, protective plates are typically installed. However, existing protective plates are usually fixed to the chassis with multiple screws, requiring repeated tightening and loosening of these screws during installation and removal. This repetitive process is cumbersome, time-consuming, and inconvenient for maintenance and replacement. Furthermore, when the chassis bottoms out and the plate is punctured and caught by a sharp object, the lack of an automatic detachment mechanism can cause further damage to the chassis and even affect the vehicle's normal operation.

[0003] Therefore, this utility model proposes a car chassis assembly protective plate with a quick-installation and disassembly connection structure and an automatic detachment function to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing ones, the purpose of this utility model is to provide a protective tray for automobile chassis assembly, which aims to solve the problems of cumbersome installation and disassembly of existing protective trays for automobile chassis assembly and the lack of automatic detachment function, so as to improve the efficiency of maintenance and replacement and reduce the risk of chassis damage under special circumstances.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A protective tray for an automobile chassis assembly includes a protective tray and quick-release components. The protective tray has a concave structure with a concave center and convex sides. Quick-release components are provided on both sides of the protective tray.

[0007] The quick-release assembly includes a fixing plate, a cavity, a sliding plate, a bolt, an annular groove, a insertion hole, and a slot. Multiple bolts are evenly fixed to the two sides of the protective support plate. An annular groove is formed on the surface of each bolt. A fixing plate is located on the upper side of the two sides of the protective support plate. An insertion hole corresponding to the bolt is formed at the bottom of the fixing plate. A cavity is formed inside the fixing plate. A sliding plate is longitudinally parallel to the cavity. A slot corresponding to the bolt is formed on the sliding plate. A tension spring connects the front end of the sliding plate to the inner wall of the cavity. A screw for connecting to the vehicle chassis is installed through the top of the fixing plate at the insertion hole.

[0008] Furthermore, both sets of the skateboards are fixedly connected to the rear end of each set of skateboards, and the two sets of connecting rods are fixedly connected to each other by a connecting plate.

[0009] Furthermore, an iron plate is fixed on the outer side of the connecting plate, and an electromagnet is provided on the outer side of the iron plate at a corresponding position. The electromagnet is installed on the appropriate position on the automobile chassis by bolts.

[0010] Furthermore, the inner walls on the left and right sides of the groove cavity are provided with second sliding grooves that are adapted to the sliding plate, and the left and right ends of the sliding plate are inserted into the second sliding grooves and slidably connected with them.

[0011] Furthermore, the sliding plates inside the two sets of fixed plates are connected by multiple sets of linkage rods, and the shape and specifications of the linkage rods are adapted to the protective support plate. The fixed plate is provided with a first sliding groove that is adapted to the linkage rod at the corresponding position, and the linkage rod is slidably connected to the first sliding groove.

[0012] Furthermore, the slot has a gourd-shaped structure, with the diameter of its large-diameter portion matching the diameter of the latch, and the diameter of its small-diameter portion matching the inner diameter of the annular groove.

[0013] Furthermore, a layer of rubber pads is attached to the two sides of the protective support plate where it fits against the fixing plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Quick installation and disassembly: The quick-release component design avoids the tedious operation of repeatedly turning multiple screws, greatly saving installation and disassembly time and effort. It enables quick connection and disassembly of the tray body and the vehicle chassis assembly, greatly improving the efficiency of maintenance and replacement, and saving time and labor costs.

[0016] 2. Automatic detachment function: With the help of an electromagnet and quick-release components, the protective plate can be automatically unlocked and detached from the chassis assembly when it is pierced and caught by a sharp object, thus preventing further damage to the chassis and improving vehicle driving safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of this utility model from another angle.

[0019] Figure 3 This is a partial structural schematic diagram of the present invention.

[0020] Figure 4 This is a schematic diagram of the quick-release component in this utility model.

[0021] Figure 5 This is a front sectional view of the quick-release component in this utility model.

[0022] Figure 6 This is a schematic diagram of the disassembly structure of the quick-release component and the protective tray in this utility model.

[0023] Figure 7 This is a schematic diagram of the locking bolt in this utility model.

[0024] Figure 8 This is a schematic diagram of the internal structure of the quick-release component in this utility model.

[0025] Figure 9 This is a schematic diagram of the bottom structure of the quick-release component in this utility model.

[0026] Figure 10 This is a schematic diagram of the structure of the skateboard in this utility model.

[0027] In the diagram: 1. Protective support plate; 2. Ventilation hole; 3. Linkage rod; 4. Quick release assembly; 41. Fixing plate; 42. Screw; 43. First slide groove; 44. Groove cavity; 45. Second slide groove; 46. Slide plate; 47. Pad plate; 48. Locking bolt; 49. Ring groove; 410. Linkage rod; 411. Tension spring; 412. Insertion hole; 413. Locking groove; 5. Connecting plate; 6. Electromagnet; 7. Iron plate. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0029] Example:

[0030] like Figures 1 to 10 As shown, a protective tray for an automobile chassis assembly includes a protective tray 1 and a quick-release assembly 4. The protective tray 1 is a concave structure with a concave center and convex sides. The quick-release assembly 4 is provided on both sides of the protective tray 1.

[0031] The quick-release assembly 4 includes a fixing plate 41, a groove 44, a sliding plate 46, a latch 48, an annular groove 49, a insertion hole 412, and a slot 413. Multiple latches 48 are evenly distributed on both sides of the protective support plate 1. An annular groove 49 is formed on the surface of the latch 48. The latches 48 engage with the slot 413 on the sliding plate 46 to lock and unlock the protective support plate 1 from the fixing plate 41. The latches 48 are inserted into the insertion hole 412 of the fixing plate 41 and engage with the sliding plate 46 through the annular groove 49, thereby enabling the quick-release assembly 4 to lock and unlock the protective support plate 1 from the fixing plate 41. For quick connection between components 4, a fixing plate 41 is provided on the upper side of both sides of the protective tray 1. As the main support structure of the quick-release component 4, it not only initially connects the protective tray 1 to the vehicle chassis, but also provides space and guidance for the movement of the internal sliding plate 46. The bottom of the fixing plate 41 has a matching insertion hole 412 corresponding to the latch 48. A cavity 44 is provided inside the fixing plate 41, and the sliding plate 46 is arranged longitudinally parallel inside the cavity 44. A tension spring 411 connects the front end of the sliding plate 46 to the inner wall of the cavity 44. The tension spring 411 provides the initial reset force for the sliding plate 46. During installation, the sliding plate 46 slides against the tension of the tension spring 411 to achieve locking; during disassembly, the tension spring 411 pulls the sliding plate 46 to reset, causing the slot 413 to separate from the latch 48. Under the action of the tension spring 411, the slide plate 46 is in the initial position. After the latch 48 is inserted into the insertion hole 412, the slide plate 46 is slid by external operation, and the slot 413 cooperates with the latch 48 to lock it. When disassembling, the tension spring 411 pulls the slide plate 46 to reset and unlock it. The slide plate 46 has a slot 413 that matches the latch 48. The top of the fixing plate 41 is fitted with a screw 42 for connecting to the car chassis at the position corresponding to the insertion hole 412, which serves to fix and connect. This design solves the problem that the existing protective plate 1 usually uses multiple screws 42 to fix it to the chassis. During installation and disassembly, the screws 42 need to be repeatedly turned, which is highly repetitive, and the installation and disassembly process is cumbersome, time-consuming and labor-intensive, which brings inconvenience to maintenance and replacement.

[0032] In this embodiment, each of the two sets of sliding plates 46 is fixedly connected to a connecting rod 410 at its rear end. The two sets of connecting rods 410 are fixedly connected by a connecting plate 5, enabling the coordinated operation of the two sets of sliding plates 46. Through the connection of the connecting rods 410 and the connecting plate 5, the two sets of sliding plates 46 form a unified motion system. When one set of sliding plates 46 is subjected to an external force and slides, due to the rigid connection between the connecting rods 410 and the connecting plate 5, the other set of sliding plates 46 will simultaneously slide in the same direction and amplitude. This coordinated operation ensures the consistency of the movements on both sides of the quick-release assembly 4, avoiding problems such as unstable or impossible engagement caused by asynchronous movements of the two sets of sliding plates 46.

[0033] In this embodiment, an iron plate 7 is fixedly mounted on the outer surface of the connecting plate 5. An electromagnet 6 is installed at a corresponding position on the outer side of the iron plate 7, and the electromagnet 6 is bolted to a suitable position on the vehicle chassis. When the electromagnet 6 is energized, a magnetic field is generated inside it, and the magnetic field lines radiate outward. The iron plate 7 is a ferromagnetic material and can be attracted by the magnetic field. With the iron plate 7 set on the outer side of the connecting plate 5 and the electromagnet 6 installed at a corresponding position on the outer side of the iron plate 7, when the electromagnet 6 is energized, it will generate a magnetic force, attracting the iron plate 7 to move towards the electromagnet 6. Since the iron plate 7 is fixedly connected to the connecting plate 5, and the connecting plate 5 is connected to two sets of connecting rods 410, which in turn are connected to the sliding plate 46, the sliding plate 46 will eventually slide within the groove 44 of the fixed plate 41, achieving automatic locking and disengagement of the protective support plate 1. By using an electromagnet 6 in conjunction with a quick-release assembly 4, the protective tray 1 can be automatically unlocked when it is pierced and caught by a sharp object, allowing it to detach from the chassis assembly and preventing further damage to the chassis, thus improving vehicle driving safety.

[0034] In this embodiment, second sliding grooves 45 adapted to the sliding plate 46 are formed on the inner walls of the left and right sides of the cavity 44. The left and right ends of the sliding plate 46 are engaged in the second sliding grooves 45 and slidably connected thereto. The second sliding grooves 45 provide a precise track for the sliding of the sliding plate 46, ensuring that the sliding plate 46 can move along a predetermined direction during sliding, avoiding deviation or shaking. At the same time, the two ends of the sliding plate 46 are engaged in the second sliding grooves 45, which support the sliding plate 46, so that the sliding plate 46 can remain stable when subjected to external forces and will not deform or tilt.

[0035] In this embodiment, the sliding plates 46 inside the two sets of fixed plates 41 are connected by multiple sets of linkage rods 3, and the shape and specifications of the linkage rods 3 are adapted to the protective support plate 1. A first sliding groove 43, corresponding to the linkage rod 3, is provided on the fixed plate 41, and the linkage rod 3 is slidably connected to the first sliding groove 43. The connection of the sliding plates 46 inside the two sets of fixed plates 41 via multiple sets of linkage rods 3 allows the two sets of sliding plates 46 to move synchronously. Simultaneously, the sliding connection of the linkage rod 3 to the first sliding groove 43 and the synchronous linkage of the two sets of sliding plates 46 make the entire quick-release assembly 4 form a more stable structural system, enhancing the structural stability of the two sets of sliding plates 46 and ensuring the connection stability between the two sets of quick-release assemblies 4.

[0036] In this embodiment, the slot 413 has a gourd-shaped structure. The diameter of its larger diameter portion matches the diameter of the bolt 48, and the diameter of its smaller diameter portion matches the inner diameter of the annular groove 49. The gourd-shaped slot 413 can fit the bolt 48 and its annular groove 49, enabling locking and unlocking of the bolt 48. When the protective bracket 1 needs to be installed, the bolt 48 is inserted into the insertion hole 412 at the bottom of the fixing plate 41. As the bolt 48 is inserted, it first enters the larger diameter portion of the slot 413. Since the diameter of the larger diameter portion matches the diameter of the bolt 48, the bolt 48 can pass smoothly through this portion. Then, the sliding plate 46 is pushed, causing the smaller diameter portion of the slot 413 to engage with the annular groove 49 of the bolt 48, locking the bolt 48 onto the fixing plate 41, thereby fixing the protective bracket 1 to the vehicle chassis, achieving rapid installation and improving installation efficiency.

[0037] In this embodiment, a rubber pad 47 is adhered to the two side edges of the protective tray 1 where it contacts the fixing plate 41. The rubber pad 47 is typically a sheet-like structure with a certain thickness and flexibility. Its shape and size are adapted to the shape of the contact area between the two side edges of the protective tray 1 and the fixing plate 41, completely covering the contact area. Adhered to the two side edges of the protective tray 1 where they contact the fixing plate 41, it is positioned between the protective tray 1 and the fixing plate 41, serving a buffering and sealing function.

[0038] It should be noted that the protective tray 1 has multiple sets of ventilation holes 2 evenly distributed on it for ventilation and heat dissipation. These evenly distributed ventilation holes 2 ensure effective ventilation and heat dissipation in all areas of the protective tray 1 during vehicle operation, preventing localized overheating. Components on the vehicle chassis generate heat during operation, such as the battery pack and motor controller. The ventilation holes 2 on the protective tray 1 allow air to circulate between the chassis and the outside environment, carrying away heat and thus reducing the operating temperature of these components. Simultaneously, the presence of the ventilation holes 2 reduces the amount of material used in the protective tray 1, thereby reducing its weight.

[0039] In addition, the slide plate 46 is always under the tension of the tension spring 411, and in the initial state, the small diameter part of the slot 413 on the slide plate 46 is aligned with the insertion hole 412.

[0040] The working principle of this type of automotive chassis assembly protective plate:

[0041] When the protective plate 1 needs to be installed, firstly, the fixing plates 41 on the two sets of quick-release components 4 are installed to the appropriate positions on the vehicle chassis using screws 42. Then, the electromagnet 6 is installed on the vehicle chassis at the corresponding positions of the iron plate 7 on the connecting plate 5. Next, the evenly distributed latches 48 on both sides of the protective plate 1 are aligned with the insertion holes 412 at the bottom of the fixing plate 41, and the latches 48 are inserted into the insertion holes 412. At this time, pulling the connecting plate 5 outward can also energize the electromagnet 6, causing a magnetic field to be generated inside the electromagnet 6, attracting the iron plate 7 to move towards the electromagnet 6. This, in turn, causes the sliding plate 46 to move via the connecting plate 5, aligning the large-diameter part of the slot 413 with the latches 48, allowing the latches 48 to be inserted into the slot 413. Then, the connecting plate 5 is released, and the sliding plate 46 is reset under the action of the tension spring 411, which drives the sliding plate 46 to move, so that the small diameter part of the slot 413 is locked in the annular groove 49 on the bolt 48, locking the bolt 48 on the fixed plate 41, thereby realizing the quick locking of the protective plate 1 and the car chassis.

[0042] When it is necessary to disassemble the protective plate 1 or detach it from the chassis, the electromagnet 6 is energized, which generates a magnetic field inside the electromagnet 6, attracting the iron plate 7 to move towards the electromagnet 6. This, in turn, drives the connecting plate 5 to move towards the electromagnet 6. The connecting plate 5 then drives the sliding plate 46 to move, causing the small-diameter part of the slot 413 to separate from the annular groove 49 on the bolt 48, thus releasing the lock on the bolt 48. At this time, the large-diameter part of the slot 413 is aligned with the bolt 48, and the protective plate 1 falls under the action of gravity, achieving separation from the car chassis.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. An undercarriage assembly protection skid for an automotive vehicle, characterized by: It includes a protective tray (1) and a quick-release assembly (4). The protective tray (1) is a concave structure with a concave center and convex sides. The quick-release assembly (4) is provided on both sides of the protective tray (1). The quick-release assembly (4) includes a fixing plate (41), a groove (44), a sliding plate (46), a bolt (48), an annular groove (49), a insertion hole (412), and a slot (413). The bolt (48) is provided in multiple sets and is evenly fixed on both sides of the protective support plate (1). The bolt (48) has an annular groove (49) on its annular surface. The upper side of both sides of the protective support plate (1) is provided with a fixing plate (41). The bottom of the fixing plate (41) is provided at the position corresponding to the bolt (48). The fixing plate (41) has a groove (44) inside the corresponding insertion hole (412), and a slide plate (46) is arranged longitudinally parallel inside the groove (44). A slot (413) is provided on the slide plate (46) corresponding to the buckle (48). A tension spring (411) is connected between the front end of the slide plate (46) and the inner wall of the groove (44). A screw (42) for connecting the car chassis is installed through the top of the fixing plate (41) corresponding to the insertion hole (412).

2. The undercarriage assembly guard cradle of claim 1, wherein: Both sets of the slide plates (46) are fixedly connected to the rear end of the slide plates (410), and the two sets of slide plates (410) are fixedly connected to each other by a connecting plate (5).

3. The undercarriage assembly guard cradle of claim 2, wherein: An iron plate (7) is fixed on the outer side of the connecting plate (5), and an electromagnet (6) is provided on the outer side of the iron plate (7) at the corresponding position. The electromagnet (6) is installed on the appropriate position on the automobile chassis by bolts.

4. The undercarriage assembly guard cradle of claim 1, wherein: The inner walls on the left and right sides of the cavity (44) are provided with second sliding grooves (45) that are adapted to the sliding plate (46). The left and right ends of the sliding plate (46) are inserted into the second sliding grooves (45) and slidably connected with them.

5. The undercarriage assembly guard cradle of claim 4, wherein: The sliding plates (46) inside the two sets of fixed plates (41) are connected by multiple sets of linkage rods (3), and the shape and specifications of the linkage rods (3) are adapted to the protective support plate (1). The fixed plate (41) is provided with a first sliding groove (43) that is adapted to the linkage rod (3) at the corresponding position. The linkage rod (3) is slidably connected to the first sliding groove (43).

6. The automotive chassis assembly protective plate according to claim 1, characterized in that: The slot (413) has a gourd-shaped structure, with the diameter of its large diameter portion matching the diameter of the bolt (48) and the diameter of its small diameter portion matching the inner diameter of the annular groove (49).

7. The automotive chassis assembly protective plate according to claim 1, characterized in that: A rubber pad (47) is pasted on both sides of the protective support plate (1) where it fits against the fixing plate (41).