Modular aluminum alloy frame structure for an electric kick scooter

Abstract

This application discloses a modular aluminum alloy frame structure for an electric scooter, comprising: a frame including a detachable front frame, a middle frame, and a rear frame; a first connecting portion is formed between a first end of the middle frame and a first end of the front frame; a second connecting portion is formed between a second end of the middle frame and a first end of the rear frame; the front frame, middle frame, and rear frame are fixed together to form a complete frame through the cooperation of the first connecting portion and the second connecting portion; the top of the first connecting portion has an interconnected insertion groove and a waterproof groove; the bottom of the first connecting portion has a bottom groove; the interior of the first connecting portion has multiple interconnected receiving grooves, lower movable holes, and oblique movable holes; the oblique movable holes communicate with the insertion grooves; a spring is provided in the receiving grooves; a first locking pin slides in the lower movable holes; and a second locking pin slides in the oblique movable holes.

Description

Technical Field

[0001] This application relates to the field of electric scooter technology, and in particular to a modular aluminum alloy frame structure for an electric scooter. Background Technology

[0002] With the increasing demand for short-distance urban travel, electric scooters are gradually becoming a mainstream mode of transportation due to their portability and environmental friendliness.

[0003] Most existing electric scooter frames are one-piece structures with many internal components and a long overall length, which makes them difficult to manufacture and results in high production costs. In addition, when not in use, electric scooters take up a lot of space and are not easy to store. Similarly, the one-piece frame structure is also not easy to transport and store.

[0004] This application aims to disclose a modular electric scooter frame that overcomes the above problems without compromising the strength required for normal use.

[0005] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention

[0006] Based on this, this application provides a modular aluminum alloy frame structure for an electric scooter to solve one of the aforementioned technical problems.

[0007] The technical solution adopted by this application to solve its technical problem is: a modular aluminum alloy frame structure for an electric scooter, comprising: a frame, including a detachable front frame, a middle frame, and a rear frame; a first connecting portion is formed between the first end of the middle frame and the first end of the front frame; a second connecting portion is formed between the second end of the middle frame and the first end of the rear frame; the front frame, the middle frame, and the rear frame are fixed together to form a complete frame through the cooperation of the first connecting portion and the second connecting portion; the top of the first connecting portion has an interconnected insertion groove and a waterproof groove; the bottom of the first connecting portion has a bottom groove; and the interior of the first connecting portion has multiple interconnected receiving grooves, lower movable holes, and inclined... The frame has a movable hole, which communicates with the insertion slot. A spring is installed in the receiving slot. The first locking pin slides in the lower movable hole, and the second locking pin slides in the inclined movable hole. A guide protrusion is formed on the side of the first locking pin near the second locking pin. The guide protrusion is used to drive the second locking pin to move towards the insertion slot when the first locking pin moves downward. An insertion plate and a bottom plate are formed on the second connecting part. An inclined locking hole and a lower locking hole are respectively opened on the insertion plate and the bottom plate. The inclined locking hole is used for the second locking pin to be inserted and engaged, and the lower locking hole is used for the first locking pin to be inserted and engaged, so as to achieve locking and complete the assembly of the frame.

[0008] In some embodiments, the inclined movable hole and the inclined locking hole are both opened at the same angle upwards, a limit groove is formed on the side wall of the lower locking hole in an annular shape, and a limit ring is formed at the end of the inclined movable hole.

[0009] In some embodiments, a rectangular limiting portion is formed at the end of the first locking pin, the rectangular limiting portion is movable within the receiving groove, the guide protrusion is formed on the rectangular limiting portion, and a first limiting post is formed at the end of the second locking pin.

[0010] In some embodiments, an unlock button is provided in the lower locking hole, and a second limiting post is formed on the unlock button. The second limiting post moves within the limiting groove. When the unlock button is pressed upward, the top of the unlock button is flush with the top of the base plate, the first locking pin is pushed out of the lower locking hole, and at the same time the second locking pin slides completely into the inclined movable hole.

[0011] In some embodiments, an extension plate is formed on the top edge of the plug plate, the extension plate being used to cooperate with the waterproof groove, and both the waterproof groove and the extension plate are provided with mounting holes as mounting positions for fasteners to fix the two together.

[0012] In some embodiments, a battery compartment is provided inside the intermediate frame, and component mounting compartments are provided inside the front and rear of the vehicle. Interconnected wiring holes are provided on the side walls of the intermediate frame, the front of the vehicle, and the rear of the vehicle.

[0013] In some embodiments, the front frame includes a main tube with two mounting members rotatably mounted on it, and a mounting block extending vertically upward is formed on one side of each mounting member.

[0014] In some embodiments, the bottom of the intermediate frame and the rear frame are provided with mounting grooves that match the mounting block. The bottom sides of the mounting groove are provided with insertion holes that communicate with the mounting groove. The insertion holes are for the mounting block to be inserted into, so as to fix the disassembled intermediate frame and the rear frame onto the front frame.

[0015] In some embodiments, the frame is made of aluminum alloy.

[0016] The beneficial effects of this application are as follows: 1) The frame is divided into a detachable front frame, middle frame, and rear frame. The three are assembled into a whole frame through the cooperation of the first and second connecting parts. The assembly is convenient and quick. Simply press the unlock button, insert the second connecting part horizontally into the first connecting part from the side, and release the unlock button after the first and second connecting parts are aligned to complete the frame assembly. The modular frame structure is relatively easy to process, has a low cost, and is convenient for transportation and storage. In addition, different modules can be easily replaced to DIY different configurations (such as the middle frame can be equipped with no seat, battery specifications, and front or rear frame styles), giving users more choices. It is made of aluminum alloy, and the first and second connecting parts fit tightly after assembly. Multiple sets of first and second locking pins are deeply locked. In addition, it can also be reinforced by fasteners in the mounting holes, ensuring structural strength.

[0017] 2) The disassembled intermediate frame and rear frame can be temporarily fixed to the mounting brackets on the front frame through the mounting slots and plug holes on their bottom. The mounting brackets have damped rotation, which makes it easy to adjust the lateral adjustment position and facilitates storage when not in frequent use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional schematic diagram of the vehicle frame in this application.

[0020] Figure 2 This is a cross-sectional view of the vehicle frame in this application.

[0021] Figure 3 This application is Figure 2 There is an enlarged schematic diagram of the component at point A.

[0022] Figure 4 This application is Figure 2 Enlarged schematic diagram of point B where no component is present.

[0023] Figure 5 This is a schematic diagram of the first and second locking pins of this application.

[0024] Figure 6 This is an exploded schematic diagram of the front frame, intermediate frame and rear frame of this application.

[0025] Figure 7 This is a three-dimensional schematic diagram of the intermediate frame of this application.

[0026] Figure 8 This is a schematic diagram of the bottom of the intermediate frame of this application.

[0027] Figure 9 This is a schematic cross-sectional view of the intermediate frame of this application.

[0028] Figure 10 This is a schematic diagram of the installation of the intermediate frame of another different module in this application.

[0029] Figure 11 This is a storage diagram for this application.

[0030] The reference numerals in the attached diagrams are as follows: 1. Front frame, 2. Middle frame, 3. Rear frame, 4. First connecting part, 5. Second connecting part, 6. Plug-in groove, 7. Waterproof groove, 8. Bottom groove, 9. Receiving groove, 10. Lower movable hole, 11. Angled movable hole, 12. Spring, 13. First locking pin, 1301. Guide protrusion, 1302. Rectangular limiting part, 14. Second locking pin, 1401. First limiting post, 15. Angled locking hole, 16. Lower locking hole, 17. Limiting groove, 18. Limiting ring, 19. Unlocking button, 1901. Second limiting post, 20. Plug-in plate, 21. Base plate, 22. Extension plate, 23. Mounting hole, 24. Battery compartment, 25. Component mounting compartment, 26. Wiring hole, 27. Main pipe, 28. Mounting part, 29. Mounting block, 30. Mounting groove, 31. Plug-in hole. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection of this application.

[0032] In the embodiments of this application, please refer to Figure 1-11As shown, the modular aluminum alloy frame structure of this electric scooter mainly includes: a frame, including a detachable front frame 1, a middle frame 2, and a rear frame 3. A first connecting part 4 is formed between the first end of the middle frame 2 and the first end of the front frame 1, and a second connecting part 5 is formed between the second end of the middle frame 2 and the first end of the rear frame 3. The front frame 1, the middle frame 2, and the rear frame 3 are fixed into a complete frame by the cooperation of the first connecting part 4 and the second connecting part 5. The top of the first connecting part 4 has an interconnected insertion groove 6 and a waterproof groove 7, and the bottom of the first connecting part 4 has a bottom groove 8. The interior of the first connecting part 4 has multiple interconnected receiving grooves 9, lower movable holes 10, and oblique movable holes 11. The oblique movable holes 11 communicate with the insertion grooves 6. A spring 12 is provided in the receiving groove 9. The first locking pin 13 slides in the lower movable hole 10, and the second locking pin 14 slides in the oblique movable hole 11. A guide protrusion 1301 is formed on the side of the first locking pin 13 near the second locking pin 14. The guide protrusion 1301 is used to synchronously drive the second locking pin 14 to move towards the insertion groove 6 when the first locking pin 13 moves downward. An insertion plate 20 and a bottom plate 21 are formed on the second connecting part 5. An oblique locking hole 15 and a lower locking hole 16 are respectively provided on the insertion plate 20 and the bottom plate 21. The oblique locking hole 15 is used for the second locking pin 14 to be inserted and engaged, and the lower locking hole 16 is used for the first locking pin 13 to be inserted and engaged, so as to achieve locking and complete the assembly of the frame.

[0033] like Figure 2-4 As shown, when assembling the various parts of the frame, the first locking pin 13 at the bottom of the front frame 1 or the middle frame 2 needs to be lifted by pressing upwards. After lifting the first locking pin 13, the guide protrusion 1301 is lifted simultaneously. Under the action of gravity, the second locking pin 14 slides freely into the inclined movable hole 11, so that the second locking pin 14 is completely placed in the inclined movable hole 11 or the receiving groove 9, while maintaining the pressure on the first locking pin 13. Then, the insertion plate 20 and the bottom plate 21 on the second connecting part 5 are inserted from the side into the insertion groove 6 and the bottom groove 8 on the first connecting part 4. Inside, after the first locking pin 13 contacts the top of the base plate 21, it can continue to be inserted laterally. When the other first locking pin 13 is about to contact the base plate 21, press and lift it accordingly, continuing to push the second connecting part 5 laterally until it is aligned. After alignment, the first locking pin 13 falls into the lower locking hole 16. Under the weight of the spring 12 and the second locking pin 14, the guide protrusion 1301, guided by its lower inclined surface, pushes the second locking pin 14 part out of the inclined movable hole 11 and locks it in the inclined locking hole 15, completing the locking. Similarly, to unlock, simply press the unlock button 19 upwards to push the first locking pin 13 away from the lower locking hole 16, completing the unlocking.

[0034] Furthermore, it should be noted that the guide protrusion 1301 serves to guide the second locking pin 14. By changing the slope of the guide ramp on the guide protrusion 1301, the elastic coefficient of the spring, and the mass of the second locking pin 14, it can be ensured that, under the premise that the first locking pin 13 is not subject to resistance at the bottom, the first locking pin 13 can fall down and drive the second locking pin 14 out of the inclined movable hole 11 under the action of its own weight and the restoring force of the spring 12.

[0035] In addition, such as Figure 7 As shown, the positions of multiple lower locking holes 16 are staggered in the width direction of the frame, and the corresponding lower movable holes 10 are also staggered accordingly. A specific lower locking hole 16 can only match the corresponding lower movable hole 10, which facilitates the assembly of the frame.

[0036] The following will continue to describe some preferred / improved embodiments based on the above embodiments. Any one of the following embodiments can be selected, or multiple embodiments can be combined.

[0037] like Figure 2-4 As shown, the inclined movable hole 11 and the inclined locking hole 15 are both opened at the same angle upwards. Therefore, the second locking pin 14 can automatically slide into the inclined movable hole 11 under the guidance of the guide protrusion 1301. In order to ensure that the second locking pin 14 does not disengage from the inclined movable hole 11, a limit groove 17 is formed on the side wall of the lower locking hole 16. In order to ensure that the unlocking button 19 does not disengage from the lower movable hole 10, a limit ring 18 is formed at the end of the inclined movable hole 11.

[0038] Furthermore, combined with Figure 5 As shown, a rectangular limiting part 1302 is formed at the end of the first locking pin 13. The rectangular limiting part 1302 moves within the receiving groove 9. The guide protrusion 1301 is formed on the rectangular limiting part 1302. A first limiting post 1401 is formed at the end of the second locking pin 14. The rectangular limiting part 1302 plays a limiting role, and it can only move within the receiving groove 9, ensuring the range of motion of the first locking pin 13. The first limiting post 1401 is used to cooperate with the limiting ring 18 to prevent the second locking pin 14 from falling off. The assembly of the first locking pin 13 and the second locking pin 14 is a method that can be achieved by existing technology, and will not be described in detail here.

[0039] Furthermore, the top end of the spring 12 is fixed to the top of the receiving groove 9, and the bottom end of the spring 12 is fixed to the top of the rectangular limiting part 1302.

[0040] Furthermore, an unlocking button 19 for unlocking various parts of the frame is provided in the lower locking hole 16. A second limiting post 1901 is formed on the unlocking button 19. The second limiting post 1901 moves in the limiting groove 17. When the unlocking button 19 is pressed upward, the top of the unlocking button 19 is flush with the top of the base plate 21. The first locking pin 13 is pushed out of the lower locking hole 16, and at the same time, the second locking pin 14 slides completely into the inclined movable hole 11.

[0041] like Figure 6 As shown, an extension plate 22 is formed on the top edge of the plug plate 20. The extension plate 22 is used to cooperate with the waterproof groove 7. Both the waterproof groove 7 and the extension plate 22 are provided with mounting holes 23, which serve as mounting positions for fasteners to fix the two. The fasteners can be screws. With the reinforcement of the fasteners, the strength and stability of the frame after assembly can be further guaranteed. In addition, the extension plate 22 covers the waterproof groove 7, and the contact surfaces of the extension plate 22 and the waterproof groove 7 are in close contact, which can minimize the intrusion of rainwater into the frame.

[0042] like Figure 2 As shown, the intermediate frame 2 has a battery compartment 24 for installing the battery inside, and the front and rear of the vehicle both have component mounting compartments 25 for installing other necessary components. The side walls of the intermediate frame 2, the front of the vehicle, and the rear of the vehicle all have interconnected wiring holes 26. Figure 9 As shown, in order to improve the strength of the frame, a partition is provided between the battery compartment 24 and the component mounting compartment 25 to separate the battery compartment 24 or the component mounting compartment 25. The partition is also provided with a cable routing hole 26.

[0043] like Figure 1 As shown, the front frame 1 includes a main tube 27, on which two mounting members 28 are rotatably mounted. A mounting block 29 extending vertically upward is formed on one side of each mounting member 28. The mounting member 28 has damping on the main tube 27, which can maintain its position after rotation without applying rotational force. The mounting block 29 is used to support the intermediate frame 2 or the rear frame 3 after it is removed.

[0044] like Figure 11 As shown, the bottom of the intermediate frame 2 and the rear frame 3 are provided with mounting grooves 30 that match the mounting block 29. The bottom sides of the mounting grooves 30 are provided with insertion holes 31 that connect to the mounting grooves 30. The insertion holes 31 are for the mounting block 29 to be inserted into, thereby fixing the disassembled intermediate frame 2 and rear frame 3 onto the front frame 1. It should be noted that this storage configuration is designed to provide temporary assembly after storage when not frequently used. In this configuration, the wheels on the front and rear frames 3 need to be removed and stored separately.

[0045] Specifically, the frame is made of aluminum alloy.

[0046] like Figure 10 As shown, the intermediate frame 2, front frame 1, and rear frame 3 adopt a modular design, which can be installed according to user needs and DIY different intermediate frames 2, front frames 1, and rear frames 3. The figure shows the functional intermediate frame 2. Similarly, intermediate frames 2 with different specifications of battery compartments 24, or front frames 1 and rear frames 3 with different styles can be selected.

[0047] The various embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of this application. The foregoing embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A modular aluminum alloy vehicle frame structure for an electric kick scooter, characterized in that, include: The vehicle frame includes a detachable front frame, a middle frame, and a rear frame. A first connecting portion is formed between a first end of the middle frame and a first end of the front frame, and a second connecting portion is formed between a second end of the middle frame and a first end of the rear frame. The front frame, middle frame, and rear frame are fixed together to form a complete vehicle frame through the cooperation of the first connecting portion and the second connecting portion. The first connecting part has an interconnected insertion groove and a waterproof groove at the top, and a bottom groove at the bottom. The first connecting part has multiple interconnected receiving grooves, lower movable holes and oblique movable holes inside. The oblique movable holes are connected to the insertion grooves. A spring is provided in the receiving grooves. A first locking pin slides in the lower movable hole. A second locking pin slides in the oblique movable hole. A guide protrusion is formed on the side of the first locking pin near the second locking pin. The guide protrusion is used to synchronously drive the second locking pin to move towards the insertion groove when the first locking pin moves downward. The second connecting part has a plug plate and a base plate. The plug plate and the base plate are respectively provided with an oblique locking hole and a lower locking hole. The oblique locking hole is used for the second locking pin to be inserted and engaged, and the lower locking hole is used for the first locking pin to be inserted and engaged, so as to achieve locking and complete the assembly of the frame.

2. The modular aluminum alloy vehicle frame structure of an electric kick scooter according to claim 1, wherein, Both the inclined movable hole and the inclined locking hole are opened at the same angle upwards. A limit groove is formed in an annular shape on the side wall of the lower locking hole, and a limit ring is formed at the end of the inclined movable hole.

3. The modular aluminum alloy vehicle frame structure of an electric kick scooter according to claim 2, wherein, The first locking pin has a rectangular limiting part at its end, which moves within the receiving groove. The guide protrusion is formed on the rectangular limiting part, and the second locking pin has a first limiting post at its end.

4. The modular aluminum alloy frame structure of an electric scooter according to claim 2, characterized in that, An unlock button is provided in the lower locking hole. A second limiting post is formed on the unlock button. The second limiting post moves in the limiting groove. When the unlock button is pressed upward, the top of the unlock button is flush with the top of the base plate. The first locking pin is pushed out of the lower locking hole, and at the same time, the second locking pin slides completely into the inclined movable hole.

5. The modular aluminum alloy frame structure of an electric scooter according to claim 1, characterized in that, An extension plate is formed on the top edge of the plug plate. The extension plate is used to cooperate with the waterproof groove. Both the waterproof groove and the extension plate are provided with mounting holes as installation positions for fasteners to fix the two together.

6. The modular aluminum alloy frame structure of an electric scooter according to claim 1, characterized in that, The intermediate frame has a battery compartment, and the front and rear of the vehicle have component mounting compartments. The side walls of the intermediate frame, the front of the vehicle, and the rear of the vehicle all have interconnected wiring holes.

7. The modular aluminum alloy frame structure of an electric scooter according to claim 1, characterized in that, The front frame includes a main tube with two rotatable mounting members on it, and a mounting block extending vertically upward is formed on one side of each mounting member.

8. The modular aluminum alloy frame structure of an electric scooter according to claim 7, characterized in that, The bottom of the intermediate frame and the rear frame are provided with mounting slots that match the mounting blocks. The bottom sides of the mounting slots are provided with insertion holes that communicate with the mounting slots. The insertion holes are for the mounting blocks to be inserted into, so as to fix the disassembled intermediate frame and the rear frame onto the front frame.

9. The modular aluminum alloy frame structure of an electric scooter according to claim 1, characterized in that, The frame is made of aluminum alloy.

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