Off-grid charging electric bicycle

Abstract

The utility model relates to the field of electric bicycle discloses a kind of off-grid charging electric bicycles, including frame, the bottom of the frame is provided with two groups of moving wheels, the outside lateral wall of the frame is provided with the component of hanging, the front end of the frame is provided with T-shaped handle, the top of T-shaped handle is fixedly connected with connecting sleeve, the inner wall of connecting sleeve is provided with extension handrail component, the extension handrail component includes handrail, the inside lateral wall of handrail is elastically connected with the knob of dialing by connecting spring, the surface of knob is hinged with two groups of hinge rods, the end of two groups of hinge rods away from knob is hinged with wedge, the inside lateral wall of hook is elastically connected with the plug of inserting by reset spring.The utility model in, extension handrail can be freely adjusted length according to the arm width of rider, through the linkage structure of knob, hinge rod and wedge, accurate locking adjustment position, effectively relieve muscle fatigue when long-distance cycling.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycles, and in particular to an off-grid charging electric bicycle. Background Technology

[0002] Electric bicycles, also known as electric-assisted bicycles, are a type of transportation that combines traditional bicycles with electric drive systems. Due to their environmentally friendly, energy-saving, convenient, and efficient features, they are widely used around the world.

[0003] However, the existing handlebars have a fixed length and cannot be adjusted according to the arm width, height and body type of different riders. During long rides, riders are prone to problems such as arm and shoulder muscle fatigue and even soreness. Especially during long rides, an uncomfortable riding posture not only affects the riding experience, but may also increase safety hazards due to distraction. This restricts the application of electric bicycles in long-distance travel scenarios. Therefore, an off-grid charging electric bicycle is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an off-grid charging electric bicycle, which aims to improve the existing technology that cannot be adjusted according to the different arm widths, heights and body types of different riders. During long-term riding, riders are prone to arm and shoulder muscle fatigue or even soreness.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an off-grid charging electric bicycle, including a frame, two sets of movable wheels are provided at the bottom of the frame, a hanging assembly is provided on the outer side wall of the frame, a T-shaped handle is provided at the front end of the frame, a connecting sleeve is fixedly connected to the top of the T-shaped handle, and an extension handle assembly is provided on the inner wall of the connecting sleeve.

[0006] The extended handrail assembly includes a handrail, and the inner sidewall of the handrail is elastically connected to a lever by a connecting spring. Two sets of hinge rods are hinged to the surface of the lever, and a wedge is hinged to the end of each set of hinge rods away from the lever.

[0007] As a further description of the above technical solution:

[0008] The hanging assembly includes a hook, and the inner sidewall of the hook is elastically connected to an insert block via a return spring.

[0009] As a further description of the above technical solution:

[0010] The inner side of the connecting sleeve has a cavity, and the outer sidewall of the handrail is in contact with the inner wall of the cavity of the connecting sleeve.

[0011] As a further description of the above technical solution:

[0012] One end of the connecting spring is fixedly connected to the outer sidewall of the lever, and the other end of the connecting spring is fixedly connected to the inner sidewall of the connecting spring.

[0013] As a further description of the above technical solution:

[0014] The lever is slidably connected to the inner sidewall of the connecting spring, and the wedge is slidably connected to the inner sidewall of the handrail.

[0015] As a further description of the above technical solution:

[0016] The bottom end of the connecting sleeve is provided with a sliding groove, and the lever passes through and is slidably connected to the inner wall of the sliding groove at the bottom end of the connecting sleeve.

[0017] As a further description of the above technical solution:

[0018] The inner sidewall of the connecting sleeve has a slot, and the outer wall of the wedge is inserted into the inner wall of the slot.

[0019] As a further description of the above technical solution:

[0020] The hooks are provided in two sets, and both sets of hooks are rotatably connected to the outer sidewall of the frame.

[0021] As a further description of the above technical solution:

[0022] One end of the reset spring is fixedly connected to the outer wall of the insert block, and the other end of the reset spring is fixedly connected to the inner side wall of the hook.

[0023] As a further description of the above technical solution:

[0024] The insert block is slidably connected to the inner side wall of the hook. A slot is provided at the top of the inner side wall of the frame, and the outer wall of the insert block is inserted into the inner wall of the slot.

[0025] This utility model has the following beneficial effects:

[0026] 1. In this utility model, the extended handlebar can be freely adjusted in length according to the rider's arm width. Through the linkage structure of the lever, hinge rod and wedge, the adjustment position is precisely locked, effectively relieving muscle fatigue during long-distance cycling.

[0027] 2. In this utility model, the retractable hook can be embedded inside the frame when not in use, and can be stably stored by the cooperation of the insert and the slot to avoid shaking; when in use, the hook can be unfolded, and the inner protective design can prevent items from falling off on bumpy roads. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an off-grid charging electric bicycle proposed in this utility model.

[0029] Figure 2 This is a schematic diagram of the structure of an off-grid charging electric bicycle in a separated state of the connecting sleeve and the handlebar, as proposed in this utility model.

[0030] Figure 3 This is a partial cross-sectional view of the connecting sleeve and handlebar structure of an off-grid charging electric bicycle proposed in this utility model;

[0031] Figure 4 This is a partial cross-sectional view of the frame and one-side hook of an off-grid charging electric bicycle proposed in this utility model.

[0032] Figure 5 This is a schematic diagram of an off-grid charging circuit for an off-grid electric bicycle proposed in this utility model.

[0033] Legend:

[0034] 1. Frame; 2. Transfer wheel; 3. Mounting assembly; 31. Hook; 32. Return spring; 33. Insert block; 4. T-handlebar; 5. Connecting sleeve; 6. Extended handlebar assembly; 61. Handlebar; 62. Connecting spring; 63. Paddle block; 64. Hinge rod; 65. Wedge block. Detailed Implementation

[0035] 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 protection scope of the present utility model.

[0036] Reference Figure 1 , Figure 2 as well as Figure 5This utility model provides an embodiment of an off-grid charging electric bicycle, including a frame 1. A battery is disposed on the inner side of the frame 1 and electrically connected to the rear set of moving wheels 2. The electrical connection between the two allows power to be supplied to the drive motor of the moving wheels 2, thereby achieving electric drive. A throttle switch is disposed on the surface of the connecting sleeve 5. The core circuit architecture of the off-grid charging of the entire vehicle includes four modules. The solar charging module consists of an 18-24V / 50-100W solar panel, an MPPT charging controller (such as BQ2465010), and a 12V energy storage battery. It adopts a Boost topology to achieve maximum power point tracking and has overvoltage protection and reverse connection protection functions. The energy storage and boost module uses a 12V / 10Ah backup battery and a PWM controlled oscillation transformer to boost the voltage to 48V, and is equipped with a fuse and overcurrent detection protection circuit. The battery management system (BMS) uses a BQ769526 chip to monitor the battery status in real time and supports overcurrent protection. It features overvoltage / undervoltage / overtemperature protection and equalization charging, and communicates with the charging controller via CAN / I2C. The charging interface and protocol module are equipped with a 2+2 / 2+4 pin connector that conforms to the new national standard. It integrates a CAN communication module to achieve voltage matching detection. It adapts to lead-acid / lithium batteries and prevents misconnection through a switch. The bottom of the frame 1 is equipped with two sets of casters 2. The outer side wall of the frame 1 is equipped with a mounting component 3. The front end of the frame 1 is equipped with a T-shaped handlebar 4. The top of the T-shaped handlebar 4 is fixedly connected to a connecting sleeve 5. The inner wall of the connecting sleeve 5 is equipped with an extension armrest component 6.

[0037] Reference Figure 2 and Figure 3The extended armrest assembly 6 includes an armrest 61. A cavity is formed on the inner side of the connecting sleeve 5. The outer sidewall of the armrest 61 contacts the inner wall of the cavity in the connecting sleeve 5. Anti-slip grooves are formed on the surface of the armrest 61. The armrest 61 can extend inside the connecting sleeve 5, thereby adjusting its overall length to accommodate different riders' arm widths and avoid discomfort during long-distance riding. A lever 63 is elastically connected to the inner sidewall of the armrest 61 via a connecting spring 62. The lever 63 passes through and slides on the inner sidewall of the connecting spring 62. A groove is formed at the bottom of the connecting sleeve 5, and the lever 63 passes through and slides on the inner wall of the groove at the bottom of the connecting sleeve 5. The lever 63 passes through the armrest 61 and the connecting sleeve 5, facilitating its movement. One end of the connecting spring 62 is fixedly connected to the outer sidewall of the lever 63, and the other end of the connecting spring 62 is fixedly connected to the inner sidewall of the connecting spring 62. The function of the connecting spring 62 is to automatically reset the position of the lever 63 after it is moved. Two sets of hinge rods 64 are hinged to the surface of the lever 63. A wedge 65 is hinged to the end of each set of hinge rods 64 away from the lever 63. When the lever 63 moves, it will pull the two sets of wedges 65 together or away from each other through the hinge rods 64. The wedge 65 is slidably connected to the inner sidewall of the armrest 61. The inner sidewall of the connecting sleeve 5 is provided with a slot. The outer wall of the wedge 65 is inserted into the inner wall of the slot. The insertion between the two can fix the multiple lengths of the armrest 61 after it is adjusted inside the connecting sleeve 5.

[0038] Reference Figure 1 and Figure 4 The hanging assembly 3 includes hooks 31, with two sets of hooks 31. Both sets of hooks 31 are rotatably connected to the outer sidewall of the frame 1. The surface of the hooks 31 is provided with grooves, and the hooks 31 can be rotated and unfolded to hang items. The inner sidewall of the hooks 31 is elastically connected to a plug 33 via a return spring 32. One end of the return spring 32 is fixedly connected to the outer wall of the plug 33, and the other end of the return spring 32 is fixedly connected to the inner sidewall of the hooks 31. The function of the return spring 32 is to automatically reset the position of the plug 33 after it has been moved. The plug 33 is slidably connected to the inner sidewall of the hooks 31. A slot is provided at the top of the inner sidewall of the frame 1, and the outer wall of the plug 33 is inserted into the inner wall of the slot. The insertion between the two allows the hooks 31 to be stored inside the frame 1 when not in use.

[0039] Working principle: The armrest 61 of the extended armrest assembly 6 can extend inside the connecting sleeve 5 to accommodate different arm widths of drivers. The outer sidewall of the armrest 61 contacts the inner cavity wall of the connecting sleeve 5, and the surface has anti-slip grooves for easy gripping. When the length of the armrest 61 needs to be adjusted, the lever 63 that runs through the armrest 61 and the connecting sleeve 5 is moved. The inner sidewall of the lever 63 is elastically connected to the armrest 61 by the connecting spring 62. When the lever 63 is moved, it overcomes the elastic force of the connecting spring 62 and slides in the groove at the bottom of the connecting sleeve 5. The two sets of hinge rods 64 hinged to the surface of the lever 63 move as the lever 63 moves. The movement of the wedge 65 hinged to the other end of the hinge rod 64 will cause the lever 63 to move. When the lever 63 moves to one side, the two sets of wedges 65 will move closer together through the hinge rod 64; otherwise, they will move away from each other. The inner side wall of the connecting sleeve 5 has a slot. When the armrest 61 is adjusted to the appropriate length, the lever 63 is released, and the connecting spring 62 pushes the lever 63 to reset. At the same time, the hinge rod 64 and the wedge 65 move, so that the wedge 65 is inserted into the slot of the connecting sleeve 5, fixing the armrest 61 at the currently adjusted length position, preventing the armrest 61 from sliding during riding, and effectively avoiding fatigue caused by uncomfortable arm posture during long-distance riding.

[0040] The inner sidewall of the hook 31 is elastically connected to the insert block 33 via a return spring 32. When the hook 31 is not in use, rotate the hook 31 to retract it towards the inside of the frame 1. During the retraction process, manually move the insert block 33 to overcome the elastic force of the return spring 32 and slide it on the inner sidewall of the hook 31. When the hook 31 is completely retracted into the frame 1, release the insert block 33. The return spring 32 pushes the insert block 33 back to its original position, allowing it to insert into the slot at the top of the inner sidewall of the frame 1, thus firmly fixing the hook 31 in the retracted position and preventing the hook 31 from shaking or accidentally unfolding during riding. At the same time, the insert block 33 can cover the top when hanging items, thus preventing objects from falling off during bumpy rides.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An off-grid charging electric bicycle, comprising a frame (1), characterized in that: The bottom of the frame (1) is provided with two sets of moving wheels (2), the outer side wall of the frame (1) is provided with a hanging component (3), the front end of the frame (1) is provided with a T-shaped handle (4), the top of the T-shaped handle (4) is fixedly connected with a connecting sleeve (5), and the inner wall of the connecting sleeve (5) is provided with an extension armrest component (6). The extended handrail assembly (6) includes a handrail (61), and the inner sidewall of the handrail (61) is elastically connected to a lever (63) by a connecting spring (62). The surface of the lever (63) is hinged with two sets of hinge rods (64), and the ends of the two sets of hinge rods (64) away from the lever (63) are hinged with wedges (65).

2. The off-grid charging electric bicycle according to claim 1, characterized in that: The hanging assembly (3) includes a hook (31), and the inner sidewall of the hook (31) is elastically connected to a plug (33) by a return spring (32).

3. The off-grid charging electric bicycle according to claim 1, characterized in that: The inner side of the connecting sleeve (5) has a cavity, and the outer sidewall of the handrail (61) is in contact with the inner wall of the cavity of the connecting sleeve (5).

4. The off-grid charging electric bicycle according to claim 1, characterized in that: One end of the connecting spring (62) is fixedly connected to the outer sidewall of the lever (63), and the other end of the connecting spring (62) is fixedly connected to the inner sidewall of the armrest (61).

5. An off-grid charging electric bicycle according to claim 1, characterized in that: The bottom end of the connecting sleeve (5) is provided with a sliding groove, and the pusher block (63) passes through and is slidably connected to the inner wall of the sliding groove at the bottom end of the connecting sleeve (5).

6. An off-grid charging electric bicycle according to claim 1, characterized in that: The inner sidewall of the connecting sleeve (5) is provided with a slot, and the outer wall of the wedge (65) is inserted into the inner wall of the slot.

7. An off-grid charging electric bicycle according to claim 2, characterized in that: The hooks (31) are provided in two sets, and both sets of hooks (31) are rotatably connected to the outer sidewall of the frame (1).

8. An off-grid charging electric bicycle according to claim 2, characterized in that: One end of the reset spring (32) is fixedly connected to the outer wall of the insert (33), and the other end of the reset spring (32) is fixedly connected to the inner side wall of the hook (31).

9. An off-grid charging electric bicycle according to claim 2, characterized in that: The insert (33) is slidably connected to the inner side wall of the hook (31), and a slot is provided at the top of the inner side wall of the frame (1). The outer wall of the insert (33) is inserted into the inner wall of the slot.

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