A quadricycle frame with a fender
By installing a removable protective plate in the middle section of the main beam of the four-wheeled vehicle frame, the problem of deformation and damage to the frame caused by uneven road surfaces and obstacle impacts during driving is solved, thus achieving protection and maintenance of the battery and circuit, and facilitating installation and replacement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU NWOW TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-07
AI Technical Summary
The frame of a low-speed four-wheeled electric vehicle is easily affected by factors such as uneven road surfaces and impacts from obstacles during operation, which can lead to frame deformation and damage to the battery and electrical wiring.
Design a four-wheeled vehicle frame with a protective plate. The protective plate is detachably connected to the middle section of the main beam and fixed by bolts or other detachable methods to protect the frame body and prevent water and dust from entering, as well as the battery and electrical wiring.
It effectively protects the main structure of the vehicle frame, prevents damage to the battery and circuitry, ensures the normal operation of the battery and electronic components, and facilitates installation and maintenance.
Smart Images

Figure CN224465953U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of four-wheeled vehicle frame equipment technology, and in particular to a four-wheeled vehicle frame with a protective plate. Background Technology
[0002] Low-speed four-wheeled electric vehicles are widely used in urban short-distance commuting and logistics transportation due to their affordability and ease of operation.
[0003] However, during operation, the bottom of the frame of such vehicles is easily affected by factors such as uneven road surfaces and impacts from obstacles, leading to problems such as frame deformation, battery damage, and wiring damage. Utility Model Content
[0004] Based on the above situation, the main purpose of this utility model is to provide a four-wheeled vehicle frame with a protective plate to solve the problem that the bottom of the existing frame is easily affected by factors such as uneven road surface and impact from obstacles, resulting in frame deformation and damage to the battery and circuit wiring.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A four-wheeled vehicle frame with a protective plate includes a frame body and a protective plate;
[0007] The frame body includes the main beam;
[0008] The guard plate is detachably connected to the main beam.
[0009] Preferably, the main beam includes a middle section, a front mounting section, and a rear mounting section;
[0010] The intermediate segment is located between the front mounting segment and the rear mounting segment;
[0011] The guard plate is fixed to the lower side of the middle section.
[0012] Preferably, the distance between the two ends of the middle section is L1, and the length of the guard plate is L2, where L2 ≥ L1.
[0013] Preferably, the distance between the two intermediate sections is W1, and the length of the guard plate is W2, where W2 ≥ W1.
[0014] Preferably, multiple mounting frames are fixed below the main beam, and the guard plate and the mounting frames are bolted together.
[0015] Preferably, the surface of the protective plate is provided with multiple drainage grooves.
[0016] The beneficial effects of this utility model are as follows: the guard plate is bolted to the middle section of the main beam. It is used to protect the main structure of the vehicle frame, and can withstand a certain degree of external impact from the bottom of the vehicle. It protects the vehicle frame and electronic components such as batteries and circuit lines installed on the vehicle frame. The guard plate can also prevent water and dust from directly entering the vehicle frame from the bottom of the vehicle, ensuring that the battery and electronic components can work normally. Furthermore, the guard plate is bolted to the main beam, which facilitates installation and disassembly, and makes replacement and maintenance convenient.
[0017] Other beneficial effects of this utility model will be explained in the specific embodiments through the introduction of specific technical features and technical solutions. Those skilled in the art should be able to understand the beneficial technical effects brought about by these technical features and technical solutions through the introduction of these technical features and technical solutions. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a four-wheeled vehicle frame with a protective plate according to the present invention.
[0019] Figure 2 This is a schematic diagram of the main beam of a four-wheeled vehicle frame with a protective plate according to the present invention.
[0020] Figure 3 This is a schematic diagram of the structure of the protective plate of a four-wheeled vehicle frame with a protective plate according to the present invention.
[0021] Figure 4 This is a schematic diagram showing the structure of the mounting frame of a four-wheeled vehicle frame with a protective plate according to the present invention.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Chassis body; 11. Main beam; 111. Front mounting section; 112. Middle section; 113. Rear mounting section; 2. Protective plate; 21. Mounting frame; 22. Drainage groove. Detailed Implementation
[0024] The present invention will now be described based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail, but well-known methods, processes, procedures, and elements are not described in detail in order to avoid obscuring the essence of the present invention.
[0025] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.
[0026] Unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as encompassing rather than being exclusive or exhaustive; that is, meaning "including but not limited to."
[0027] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0028] Reference Figure 1-4 This utility model provides a four-wheeled vehicle frame with a protective plate, including a frame body 1 and a protective plate 2. The frame body 1 is used to support the battery, circuit lines and other structures. The protective plate 2 is installed under the frame body 1 and can be used to protect the frame body 1 itself as well as the battery and circuit lines inside the frame body 1.
[0029] The frame body 1 has a front end and a rear end that are arranged opposite to each other. It should be noted that the front end is the front end of the four-wheeled vehicle, and the rear end corresponds to the parking end of the four-wheeled vehicle. The frame body 1 includes two main beams 11, which are arranged horizontally opposite to each other. The main beams 11 are the main structure of the frame body 1. The frame body 1 also includes multiple crossbeams, mounting brackets, and other structures for reinforcing the vehicle body, installing the motor, and fixing the vehicle shell, etc. This is prior art and will not be described in detail in this application.
[0030] The main beam 11 includes a middle section 112, a front mounting section 111, and a rear mounting section 113. The middle section 112 is located between the front mounting section 111 and the rear mounting section 113. The front mounting section 111 is positioned closer to the front end, and the rear mounting section 113 is positioned closer to the rear end. Specifically, the front mounting section 111 and the rear mounting section 113 are straight rods, while the middle section 112 is a bent rod, thereby increasing the area of the mounting region formed by the two main beams 11. During assembly, the battery and electrical wiring are positioned in the middle of the frame body 1, above the middle section 112 of the main beam 11.
[0031] The guard plate 2 is bolted to the middle section 112 of the main beam 11. It protects the main structure of the frame body 1, withstanding a certain degree of external impact from the underside of the vehicle. It protects the frame body 1 and electronic components such as batteries and wiring mounted on it. The guard plate 2 also prevents water and dust from directly entering the frame from the underside, ensuring the normal operation of the battery and electronic components. Furthermore, the bolted connection of the guard plate 2 to the main beam 11 facilitates installation, removal, replacement, and maintenance. It should be noted that the guard plate 2 can also be installed on the front mounting section 111 and the rear mounting section 113. However, since the middle section of the main beam 11 is located in the center, it is more susceptible to deformation after impact. Moreover, the batteries and electronic components that are impacted are usually located in the middle of the main beam 11, requiring even more protection from the guard plate 2. Those skilled in the art should be able to adjust the protection area of the guard plate 2 according to the installation position of the batteries and electronic components. Additionally, the connection between the guard plate 2 and the main beam 11 can be other detachable methods, such as using clip-on or snap-fit connections, and is not limited to bolted connections.
[0032] As one embodiment, the distance between the two ends of the middle section 112 is L1, and the length of the protective plate 2 in the extending direction is L2, where L2 ≥ L1. The maximum distance between the two middle sections 112 on opposite sides is W1, and the maximum width of the protective plate 2 is W2, where W2 ≥ W1. By setting a protective plate 2 with sufficient width and length, the protective plate 2 can cover the middle section 112 of the frame body, providing more comprehensive protection for the frame body.
[0033] As one embodiment, a plurality of mounting frames 21 are fixed below the intermediate section 112, and the plurality of mounting frames 21 are arranged along the extending direction of the intermediate section 112. The protective plate 2 and the mounting frames 21 are connected by bolts. By setting the mounting frames 21, the protective plate 2 can be more easily fixed.
[0034] As one embodiment, the surface of the protective plate 2 is provided with multiple water seepage grooves 22. When the four-wheeled vehicle passes through water, the water on the protective plate 2 can flow out from the water seepage grooves 22, preventing water accumulation on the top of the protective plate 2 from affecting the operation of the internal battery and electronic components.
[0035] The implementation principle of this utility model is as follows: the guard plate 2 is bolted to the middle section 112 of the main beam 11. It is used to protect the main structure of the frame body 1, and can withstand a certain degree of external impact from the bottom of the vehicle. It protects the frame body 1 and electronic components such as batteries and circuit lines installed on the frame body 1. The guard plate 2 can also prevent water and dust from directly entering the frame from the bottom of the vehicle, and protect the battery and electronic components to ensure normal operation. Furthermore, the guard plate 2 is bolted to the main beam 11, which facilitates installation and disassembly, and makes replacement and maintenance convenient.
[0036] Those skilled in the art will understand that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.
[0037] It should be understood that the above-described embodiments are merely exemplary and not restrictive. Without departing from the basic principles of this utility model, any obvious or equivalent modifications or substitutions made by those skilled in the art regarding the above details will be included within the scope of the claims of this utility model.
Claims
1. A four-wheeled vehicle frame with protective plates, characterized in that, Including the frame body and skid plates; The frame body includes the main beam; The guard plate is detachably connected to the main beam.
2. The four-wheeled vehicle frame with a protective plate as described in claim 1, characterized in that, The main beam includes a middle section, a front mounting section, and a rear mounting section; The intermediate segment is located between the front mounting segment and the rear mounting segment; The guard plate is fixed to the lower side of the middle section.
3. The four-wheeled vehicle frame with a protective plate as described in claim 2, characterized in that, The distance between the two ends of the middle section is L1, and the length of the guard plate is L2, where L2 ≥ L1.
4. The four-wheeled vehicle frame with a protective plate as described in claim 2, characterized in that, The distance between the two intermediate sections is W1, and the length of the guard plate is W2, where W2 ≥ W1.
5. The four-wheeled vehicle frame with a protective plate as described in claim 1, characterized in that, Multiple mounting frames are fixed below the main beam, and the guard plate and the mounting frames are bolted together.
6. The four-wheeled vehicle frame with a protective plate as described in claim 1, characterized in that, The surface of the protective plate has multiple drainage grooves.