Small electric folding magnesium alloy frame

Abstract

The utility model belongs to the technical field of small -size electric mobile car, specifically is a small -size electric foldable magnesium alloy frame, including the frame, the frame is combined by front frame and rear frame, the front frame both sides are equipped with a plurality of pedal assembly mounting hole, be provided with front and rear frame rotating shaft on the frame, be equipped with a plurality of frame lock mounting hole on the front frame, the frame lock is fixed with frame lock mounting hole through bolt and screw joint, through design structure, the frame is integrally die casting by mould, all the sub -modules of chassis and seat module can be assembled well through the shunt pipeline first, then the mounting feature and mounting hole of the frame casting are total assembled on the assembly line. The overall assembly efficiency is high, and the management is convenient.

Description

Technical Field

[0001] This utility model relates to the field of small electric mobile vehicle technology, specifically a small electric foldable magnesium alloy vehicle frame. Background Technology

[0002] Small electric mobile vehicles are a type of convenient transportation tool specifically designed for mobility assistance. They mainly include two types: electric wheelchairs and electric mobility scooters, suitable for the elderly, disabled, or those with limited mobility. The frames of most small electric mobile vehicles are manufactured using various specifications of profiles, sheet metal, standard parts, and other components through processes such as bending, welding, and screwing.

[0003] Existing manufacturing processes for small electric mobile vehicle frames are complex, resulting in low production efficiency and relatively heavy overall components. Furthermore, most frames are constructed from profiles, spliced ​​together, or welded, resulting in numerous parts and making production difficult to control. Additionally, in most traditional vehicles, the battery and electronic control modules are located above or below the frame, reducing overhead space and user movement space, potentially leading to accidents and equipment damage during operation, thus posing a safety hazard. Therefore, this paper proposes a small, foldable magnesium alloy electric vehicle frame to address these issues. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a small electric foldable magnesium alloy frame.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A small electric foldable magnesium alloy bicycle frame, comprising a frame, which is composed of a front frame and a rear frame; the front frame has several pedal assembly mounting holes on both sides, a front and rear frame rotation shaft is provided on the frame, the front frame has several frame lock mounting holes, and the frame lock is screwed into the frame lock mounting holes with bolts; one side of the front frame has several front fork assembly mounting holes; the rear frame has several shock absorber mounting holes and several swing arm assembly mounting holes; the frame has battery mounting holes, and several symmetrically arranged battery mounting guide ribs are fixedly installed on the frame; a seat support mounting component is fixedly installed at the bottom of the frame.

[0006] Furthermore, the rear frame is provided with several motor decorative cover mounting holes, several symmetrically arranged main positioning holes for motor decorative covers, and several symmetrically arranged auxiliary positioning holes for motor decorative covers.

[0007] Furthermore, two symmetrically arranged lower controller mounting holes are provided on one side of the rear frame.

[0008] Furthermore, the front frame is provided with pre-drilled holes for securing the net.

[0009] Furthermore, one side of the rear frame is provided with anti-collision wheel mounting holes.

[0010] Furthermore, there are two seat support mounting members with different lengths, one of which is a protrusion.

[0011] Furthermore, a handle is rotatably connected to the bottom of the frame.

[0012] Furthermore, handrail mounting components are installed on both sides of the front frame.

[0013] The advantages of this utility model are:

[0014] 1. This utility model utilizes a design featuring mounting holes for the pedal assembly, anti-collision wheels, motor decorative cover, swing arm assembly, lower controller, shock absorber, armrest mounting components, and front and rear frame rotating shafts. The frame is integrally die-cast using a mold. All chassis modules and seat modules can be pre-assembled on a separate production line, and then final assembly is performed on the assembly line using the mounting features and holes cast into the frame. This results in high overall assembly efficiency and convenient management. Furthermore, because the frame of this application is integrally die-cast, its structure is simple and the molding process is fast. All mounting features are formed simultaneously with the frame, eliminating the need for welding and riveting, thus greatly improving production efficiency and reducing labor costs. Moreover, by casting several bosses, this application allows for cost savings when high installation precision is required, as only small-area bosses need to be machined.

[0015] 2. This utility model utilizes directly cast groove features to arrange and install the battery. Placing the battery system within the vehicle frame improves safety, frees up frame space, maximizes space utilization, and provides ample space for the seat module and user movement. The invention features a hydraulic damping shock absorber mounting feature at the top and a single bushing mounting feature at the bottom. By casting bosses and partially machining flat surfaces, a composite bushing is installed, resulting in a simple structure and convenient assembly. Modular assembly allows for the integration of different seat modules. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic side view of the structure of this utility model;

[0018] Figure 2 This is a schematic rear view of the structure of this utility model;

[0019] Figure 3 This is a schematic bottom view of the structure of this utility model;

[0020] Figure 4 This utility model is an extension Figure 2 Sectional view along the AA direction;

[0021] Figure 5 This is a schematic top view of the structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the frame in the folded state of this utility model.

[0023] In the diagram: 1. Pedal assembly mounting hole; 2. Anti-scratch wheel mounting hole; 3. Motor decorative cover mounting hole; 4. Swing arm assembly mounting hole; 5. Lower controller mounting hole; 6. Shock absorber mounting hole; 7. Handrail mounting piece; 8. Front and rear frame rotation shafts; 9. Frame lock mounting hole; 10. Net bag pre-drilled mounting hole; 11. Front fork assembly mounting hole; 12. Battery mounting hole; 13. Battery mounting guide rib; 14. Motor decorative cover main positioning hole; 15. Motor decorative cover auxiliary positioning hole; 16. Seat support mounting piece; 17. Handle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figure 1-6 As shown, a small electric foldable magnesium alloy bicycle frame includes a frame composed of a front frame and a rear frame. The front frame has several pedal assembly mounting holes 1 on both sides, a front and rear frame rotation shaft 8 on the frame, and several frame lock mounting holes 9 on the front frame. The frame lock is bolted to the frame lock mounting holes 9. One side of the front frame has several front fork assembly mounting holes 11. The rear frame has several shock absorber mounting holes 6 and several swing arm assembly mounting holes 4. The frame has battery mounting holes 12, and several symmetrically arranged battery mounting guide ribs 13 are fixedly installed on the frame. A seat support mounting component 16 is fixedly installed at the bottom of the frame.

[0026] Specifically, the rear frame has several motor decorative cover mounting holes 3, several symmetrically arranged main positioning holes 14 for motor decorative covers, and several symmetrically arranged auxiliary positioning holes 15 for motor decorative covers. Two symmetrically arranged lower controller mounting holes 5 are provided on one side of the rear frame. A net bag pre-installed mounting hole 10 is provided on the front frame for securing the net bag. Anti-collision wheel mounting holes 2 are provided on one side of the rear frame. There are two seat support mounting pieces 16 of different lengths, one of which is a protruding shape. A handle 17 is rotatably connected to the bottom of the frame. Armrest mounting pieces 7 are installed on both sides of the front frame.

[0027] During operation, the mounting holes 1 of the pedal assembly on both sides of the front frame and the mounting surface can be machined separately, ensuring the positional accuracy of the mounting holes 1 and the flatness of the mounting surface. The two mounting points on each side of the pedal assembly mounting hole 1 are screwed to the front frame, and the three mounting points on each side can move the pedal position up and down to achieve three position states, ensuring the riding comfort of people of different heights.

[0028] The rear frame has anti-collision wheel mounting holes 2, which are screwed to the anti-collision wheels via mounting holes on the frame itself. The rear frame has motor decorative cover mounting holes 3, main positioning holes 14, and auxiliary positioning holes 15. The upper part of the motor decorative cover is fixed to the frame with four screws, and the lower part is fixed to the frame with two snap fasteners. The rear frame has shock absorber mounting holes 6 and swing arm assembly mounting holes 4. The vehicle is equipped with an independent suspension, and the suspension assembly is fixed to the rear frame with bolts and nuts via the swing arm assembly mounting holes 4. The upper part of the shock absorber is fixed to the rear frame with bolts and nuts via the shock absorber mounting holes 6, and the shock absorber mounting holes 6 are fixed to the swing arm assembly with bolts and nuts. The rear of the rear frame has a recess for the lower controller mounting hole 5. The lower controller is placed on the back of the rear frame and fixed with bolts, improving safety and providing ample installation space. The middle part of the rear frame has a large recess for the battery mounting hole 12. The battery is placed into the rear frame along the battery mounting guide 13. The battery mounting guide 13 provides circumferential restraint, and the battery mounting hole 12 prevents the battery from coming out. By placing the battery in the frame, the safety of the battery is greatly guaranteed during the use of the vehicle.

[0029] The front frame has a handlebar mounting piece 7, and the handlebar is installed and positioned on the handlebar mounting piece 7 via a nylon bushing. The front frame has frame lock mounting holes 9, and the frame lock is screwed into the frame lock mounting holes 9. The front frame has pre-drilled mounting holes 10 for a mesh basket, and the mesh basket bracket is screwed into the pre-drilled mounting holes 10. The front frame has front fork mounting holes at the front, and the fork is screwed into the front frame via its own mounting screws. The frame has a seat support mounting piece 16, and the seat is snapped onto the seat support mounting piece 16 via its own groove.

[0030] The front frame has handles 17, which provide handholds during seat folding and transport. The rear frame folds after rotating 94°, facilitating transport and storage.

[0031] With the aforementioned design, the chassis is integrally die-cast using a mold. All chassis modules and seat modules can be pre-assembled on a separate production line, and then final assembled on the assembly line using the mounting features and holes cast into the chassis. This results in high overall assembly efficiency and convenient management. Furthermore, because the chassis of this application is integrally die-cast, its structure is simple and the molding process is fast. Since all mounting features are formed simultaneously with the chassis, the elimination of welding and riveting significantly improves production efficiency and reduces labor costs. Moreover, by casting several bosses, this application allows for cost savings when high installation precision is required; only small-area bosses need to be machined.

[0032] It is important to note that this application arranges the battery by directly casting groove features. Placing the battery system within the vehicle frame improves safety, frees up frame space, maximizes space utilization, and provides ample space for the seat module and user movement. The invention features a hydraulic damping shock absorber mounting feature at the top and a single bushing mounting feature at the bottom. By casting bosses and partially machining flat surfaces, a composite bushing is installed, resulting in a simple structure and convenient assembly. Modular assembly allows for the integration of different seat modules.

[0033] Working principle: The pedal assembly mounting holes 1 on both sides of the front frame and the mounting surface can be machined separately, ensuring the positional accuracy of the pedal assembly mounting holes 1 and the flatness of the mounting surface. Two mounting points on one side of the pedal assembly mounting holes 1 are screwed to the front frame, while three mounting points on one side allow for vertical pedal movement, achieving three different positions to ensure comfort for passengers of different heights. The anti-collision wheel mounting holes 2 on the rear frame are screwed to the anti-collision wheels via mounting holes on the frame itself. The rear frame has motor decorative cover mounting holes 3, main positioning holes 14, and auxiliary positioning holes 15. The upper end of the motor decorative cover is fixed to the frame with four screws, and the lower end is fixed to the frame with two snap-fit ​​fasteners. The rear frame has shock absorber mounting holes 6 and swing arm assembly mounting holes 4. The car is equipped with an independent suspension, and the suspension assembly is fixed to the rear frame with bolts and nuts via the swing arm assembly mounting holes 4. The upper part of the shock absorber is fixed to the rear frame with bolts and nuts via the shock absorber mounting hole 6. The shock absorber mounting hole 6 is also fixed to the swing arm assembly with bolts and nuts. A groove at the rear of the rear frame serves as the lower controller mounting hole 5. The lower controller is placed on the back of the rear frame and fixed with bolts, improving safety and providing ample installation space. A large groove in the middle of the rear frame serves as the battery mounting hole 12. The battery is placed into the rear frame along the battery mounting guide rib 13, which provides lateral restraint. The battery mounting hole 12 also prevents the battery from detaching, ensuring the battery's safety during vehicle use. The front frame has a handrail mounting piece 7, which is installed and positioned using a nylon bushing. The front frame has a frame lock mounting hole 9, which is bolted to the frame lock mounting hole 9. The front frame also has a pre-drilled net mounting hole 10, which is bolted to the net bracket. The front frame has fork mounting holes at the front, and the fork is screwed to the front frame using its own mounting screws. The frame has a seat support mount 16, and the seat is secured to the seat support mount 16 via its recessed groove. The front frame has a handle 17, which provides handhold space during folding and transport. The rear frame folds after rotating 94°, facilitating transport and storage.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A small electric foldable magnesium alloy frame, comprising a frame, said frame being composed of a front frame and a rear frame; Its features are: The front frame has several pedal assembly mounting holes (1) on both sides, the frame has front and rear frame rotating shafts (8), the front frame has several frame lock mounting holes (9), the frame lock is fixed to the frame lock mounting holes (9) by bolts, and the front frame has several front fork assembly mounting holes (11) on one side. The rear frame has several shock absorber mounting holes (6) and several swing arm assembly mounting holes (4); The vehicle frame is provided with battery mounting holes (12), and a number of symmetrically arranged battery mounting guide ribs (13) are fixedly installed on the vehicle frame; A seat support mounting component (16) is fixedly installed at the bottom of the frame.

2. The small electric foldable magnesium alloy frame according to claim 1, characterized in that: The rear frame is provided with several motor decorative cover mounting holes (3), several symmetrically arranged main positioning holes (14) for motor decorative covers, and several symmetrically arranged auxiliary positioning holes (15) for motor decorative covers.

3. The small electric foldable magnesium alloy frame according to claim 1, characterized in that: Two symmetrically arranged lower controller mounting holes (5) are provided on one side of the rear frame.

4. The small electric foldable magnesium alloy frame according to claim 1, characterized in that: The front frame is provided with a pre-drilled hole (10) for securing the net.

5. A small electric foldable magnesium alloy frame according to claim 1, characterized in that: One side of the rear frame is provided with anti-collision wheel mounting holes (2).

6. A small electric foldable magnesium alloy frame according to claim 1, characterized in that: There are two seat support mounting parts (16) with different lengths, one of which is a protrusion.

7. A small electric foldable magnesium alloy frame according to claim 1, characterized in that: A handle (17) is rotatably connected to the bottom of the frame.

8. A small electric foldable magnesium alloy frame according to claim 1, characterized in that: Handrail mounting pieces (7) are installed on both sides of the front frame.

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