Portable small electric bicycle

Abstract

The utility model relates to the technical field of electric bicycles, and discloses a portable small electric bicycle which comprises a bicycle body, a front walking wheel assembly and a driving rear wheel assembly are arranged at the two ends of the bicycle body respectively, a movable handlebar is installed on the front walking wheel assembly, and an adjustable seat is connected to the bicycle body in an inserted mode. A locking mechanism for fixing the adjustable seat is mounted on the vehicle body; through cooperation of the movable handlebar, the adjustable seat and the locking mechanism, a bottom cylinder of the movable handlebar can turn over by 90 degrees around a shaft pin on a connecting base, storage and carrying are convenient, occupied storage space is reduced, and the bicycle is suitable for being moved and stored in different scenes; the multiple sets of positioning holes in the two sides of the inner cavity of the supporting frame are matched with the locking mechanism, the requirements of users of different heights can be met, the riding comfort is improved, meanwhile, the overall storage space of the electric bicycle is reduced after storage, and portability is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle technology, specifically a portable small electric bicycle. Background Technology

[0002] Electric bicycles are a green and environmentally friendly short-distance means of transportation. Although they are slower and have a limited range, they are still widely used. As more and more high-capacity vehicles become available, cities become more and more congested, parking becomes more and more difficult, exhaust pollution becomes more and more serious, and oil prices become more and more expensive. Electric bicycles have become the primary choice for people's travel.

[0003] In the prior art, Chinese Utility Model Application No. CN202223558434.2 discloses a portable small electric bicycle. Currently, some electric bicycles are quite large and mostly have a single-piece structure, making them inconvenient to carry when out and about. This utility model includes an electric bicycle body, comprising a frame. A mounting component is installed on one end of the top surface of the frame. An axle is detachably mounted within the mounting component. A handlebar is mounted on the top of the axle, and an assembly is mounted on the bottom of the axle. Evenly distributed clips are fixedly mounted on the surface of the assembly. Evenly distributed mounting grooves are formed in the top surface of the mounting component, and the clips engage in these grooves. Through the cooperation of the assembly and the mounting component, the axle and handlebars can be detached from the frame, and the seat can be detached from the frame via a mounting tube, reducing the size of the electric bicycle body and making it easier to carry.

[0004] Although the electric bicycles described in the above technical solutions can reduce their size by removing the handlebars, the reduction is limited. After the handlebars and seat are removed, they still need to be carried separately, which increases the number of parts to be carried. Furthermore, the bicycles are relatively large and difficult to carry, so their portability needs to be further improved. Therefore, we need to propose a portable small electric bicycle. Utility Model Content

[0005] The purpose of this utility model is to provide a portable small electric bicycle that allows the handlebars to be folded so that they fit snugly against the body, thereby reducing the space occupied and facilitating the overall transport and carrying of the electric bicycle. It is also easy to store and improves the convenience of storage and carrying, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a portable small electric bicycle, including a vehicle body, with a front wheel assembly and a rear wheel assembly respectively provided at both ends of the vehicle body, a movable handlebar mounted on the front wheel assembly, an adjustable seat inserted into the vehicle body, and a locking mechanism for fixing the adjustable seat mounted on the vehicle body;

[0007] The front wheel assembly includes a connecting seat rotatably mounted on the vehicle body, a connecting shaft at the lower end of the connecting seat, and an auxiliary front wheel at the lower end of the connecting shaft.

[0008] The movable handlebar includes a base tube and an inner rod. The inner rod is slidably inserted into the upper end of the base tube. The lower end of the base tube is rotatably mounted on the connecting seat. The base tube can rotate 90 degrees around the pivot pin on the connecting seat.

[0009] The adjustable seat includes a support frame that is inserted into the vehicle body, and multiple sets of positioning holes are provided on both sides of the inner cavity of the support frame for the locking mechanism to be inserted.

[0010] Preferably, the locking mechanism includes positioning blocks inserted into two sets of corresponding positioning holes. A first right-angle rod and a second right-angle rod are fixedly connected to one side of each of the two sets of positioning blocks. Gear grooves are provided on the opposite side of the first right-angle rod and the second right-angle rod. Gears that mesh with the first right-angle rod and the second right-angle rod are provided in the vehicle body.

[0011] Preferably, a pull ring is provided at one end of the first right-angle rod located on the outer side of the vehicle body, and a telescopic sleeve is installed on the opposite side of the two sets of positioning blocks, with a return spring sleeved on the outer side of the telescopic sleeve.

[0012] Preferably, the support frame is arranged in a U-shape, the upper surface of the support frame is provided with a seat cushion, and the upper surface of the vehicle body is provided with two sets of rectangular through holes for the support frame to pass through.

[0013] Preferably, a protrusion is fixedly connected to the lower outer end of the bottom cylinder, and a wing bolt that is threadedly connected to the connecting seat is inserted into the protrusion. A locking nut for locking the inner rod is threadedly connected to the upper outer end of the bottom cylinder.

[0014] Preferably, the lower end of the inner rod is symmetrically provided with two sets of spring clips, the outer side of the bottom cylinder is symmetrically provided with multiple sets of slots for the two sets of spring clips to be inserted, the upper end of the inner rod is provided with a handle, the outer side of the inner rod is provided with a guide groove, and the inner wall of the bottom cylinder is fixedly connected with a guide beam.

[0015] Preferably, the upper surface of the vehicle body is provided with a foot pedal area, one end of the upper surface of the vehicle body is provided with a storage slot, and one end of the vehicle body is provided with a headlight.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model mainly utilizes the cooperation between the movable handlebars, the adjustable seat, and the locking mechanism. The bottom tube of the movable handlebars can rotate 90 degrees around the pivot pin on the connecting seat, making it convenient for storage and carrying, reducing storage space occupation, and suitable for movement and storage in different scenarios. The adjustable seat is inserted into the vehicle body through a support frame. Multiple sets of positioning holes on both sides of the inner cavity of the support frame, together with the locking mechanism, can meet the needs of users of different heights, improve riding comfort, and at the same time reduce the overall storage space of the electric bicycle after storage, thus improving portability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the unfolded structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the storage structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the movable handlebar structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the adjustable seat structure of this utility model.

[0022] In the diagram: 1. Vehicle body; 2. Front drive wheel assembly; 21. Connecting seat; 22. Coupling; 23. Auxiliary front wheel; 3. Drive rear wheel assembly; 4. Headlight; 5. Movable handlebars; 51. Base tube; 52. Inner rod; 53. Handle; 54. Locking nut; 55. Protrusion; 56. Wing bolt; 57. Spring clip; 58. Guide groove; 59. Slot; 6. Adjustable seat; 61. Support frame; 62. Seat cushion; 63. Positioning hole; 7. Locking mechanism; 71. First right-angle rod; 72. Gear; 73. Second right-angle rod; 74. Positioning block; 75. Return spring; 76. Pull ring; 8. Foot pedal area; 9. Storage slot. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a portable small electric bicycle, including a body 1, with a front wheel assembly 2 and a rear wheel assembly 3 respectively provided at both ends of the body 1, a movable handlebar 5 installed on the front wheel assembly 2, an adjustable seat 6 inserted into the body 1, and a locking mechanism 7 for fixing the adjustable seat 6 installed on the body 1.

[0025] The front wheel assembly 2 includes a connecting seat 21 rotatably mounted on the vehicle body 1, a connecting shaft 22 is provided at the lower end of the connecting seat 21, and an auxiliary front wheel 23 is provided at the lower end of the connecting shaft 22.

[0026] The movable handlebar 5 includes a base tube 51 and an inner rod 52. The inner rod 52 is slidably inserted into the upper end of the base tube 51. The lower end of the base tube 51 is rotatably mounted on the connecting seat 21. The base tube 51 can rotate 90 degrees around the shaft pin on the connecting seat 21.

[0027] The adjustable seat 6 includes a support frame 61 that is inserted into the vehicle body 1. The inner cavity of the support frame 61 has multiple sets of positioning holes 63 on both sides for the locking mechanism 7 to be inserted.

[0028] The locking mechanism 7 includes positioning blocks 74 inserted into two sets of corresponding positioning holes 63. A first right-angle rod 71 and a second right-angle rod 73 are fixedly connected to one side of each of the two sets of positioning blocks 74. The opposite sides of the first right-angle rod 71 and the second right-angle rod 73 are provided with toothed grooves. A gear 72 is provided inside the vehicle body 1 to mesh with the first right-angle rod 71 and the second right-angle rod 73. Pulling the first right-angle rod 71 can drive the gear 72 to rotate, thereby facilitating the synchronous sliding of the second right-angle rod 73 and facilitating the synchronous movement of the two sets of positioning blocks 74.

[0029] A pull ring 76 is provided at one end of the first right-angle rod 71 located on the outside of the vehicle body 1. A telescopic sleeve is installed on the opposite side of the two sets of positioning blocks 74, and a return spring 75 is sleeved on the outside of the telescopic sleeve. After the pull ring 76 is released, the return spring 75 pushes the two sets of positioning blocks 74 to move relative to each other and insert into the positioning hole 63. The gear 72 meshes with the tooth grooves of the first right-angle rod 71 and the second right-angle rod 73 to prevent the positioning blocks 74 from loosening and to ensure that the seat height is fixed.

[0030] The support frame 61 is arranged in a U-shape, and a seat 62 is provided on the upper surface of the support frame 61. Two sets of rectangular through holes are opened on the upper surface of the vehicle body 1 for the support frame 61 to pass through. The seat 62 increases the rider's comfort.

[0031] A protrusion 55 is fixedly connected to the lower outer end of the bottom cylinder 51. A wing bolt 56 that is threadedly connected to the connecting seat 21 is inserted into the protrusion 55. A locking nut 54 for locking the inner rod 52 is threadedly connected to the upper outer end of the bottom cylinder 51. The upper end of the bottom cylinder 51 can be locked by the locking nut 54, thereby improving the stability of the inner rod 52 after the position is adjusted.

[0032] Two sets of spring clips 57 are symmetrically arranged at the lower end of the inner rod 52. Multiple sets of slots 59 for the two sets of spring clips 57 to be inserted are symmetrically opened on the outer side of the bottom cylinder 51. A handle 53 is provided at the upper end of the inner rod 52. A guide groove 58 is opened on the outer side of the inner rod 52. A guide beam is fixedly connected to the inner wall of the bottom cylinder 51. The guide beam is used to prevent the inner rod 52 from rotating, ensuring that the bottom cylinder 51 can rotate synchronously with the inner rod 52, and improving the flexibility of rotating the movable handle 5.

[0033] The inner rod 52 slides inside the base tube 51. It can be adjusted to a suitable height by cooperating with the spring block 57 and the slot 59. After tightening the locking nut 54, it can be fixed. When it is necessary to flip the handlebars, the wing bolt 56 is loosened, and the base tube 51 can be flipped 90 degrees around the shaft pin on the connecting seat 21 for easy storage or adjustment of the usage state. When the handlebars are rotated, the base tube 51 drives the connecting seat 21 to rotate, thereby changing the direction of the handlebars and making it convenient for the user to operate the vehicle.

[0034] The upper surface of the vehicle body 1 is provided with a foot pedal area 8, one end of the upper surface of the vehicle body 1 is provided with a storage slot 9, and one end of the vehicle body 1 is provided with a vehicle light 4. The storage slot 9 can hold items, and the vehicle light 4 can provide illumination at night or in low light conditions, improving riding safety and convenience.

[0035] When switching from riding mode to storage mode for carrying, pulling the pull ring 76 moves the first right-angle lever 71, causing the gear 72 to rotate. This causes the gear 72 to mesh with the second right-angle lever 73 and move synchronously, pulling out the two sets of positioning blocks 74 from the positioning holes 63. This makes it easy to remove the adjustable seat 6. Then, turning the wing bolt 56 away from the connecting seat 21 allows the movable handlebar 5 to be rotated 90 degrees and placed against the surface of the vehicle body 1. The adjustable seat 6 is then reset, and the positioning block 74 of the locking mechanism 7 is inserted into the uppermost positioning hole 63, so that the lower end of the support frame 61 touches the ground, supporting the vehicle body 1. This reduces the space occupied during storage and makes it convenient to store and carry.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable small electric bicycle comprising a vehicle body (1), characterized in that: The both ends of the vehicle body (1) are respectively provided with a front walking wheel assembly (2) and a driving rear wheel assembly (3), the front walking wheel assembly (2) is provided with a movable handlebar (5), the vehicle body (1) is provided with an adjustable seat (6), and the vehicle body (1) is provided with a locking mechanism (7) for fixing the adjustable seat (6). The front walking wheel assembly (2) comprises a connecting seat (21) rotatably arranged on the vehicle body (1), and the lower end of the connecting seat (21) is provided with a connecting shaft (22), and the lower end of the connecting shaft (22) is provided with an auxiliary front wheel (23). The movable handlebar (5) comprises a bottom cylinder (51) and an inner rod (52), the inner rod (52) is slidably inserted into the upper end of the bottom cylinder (51), the lower end of the bottom cylinder (51) is rotatably arranged on the connecting seat (21), and the bottom cylinder (51) can be turned by 90 degrees with the shaft pin on the connecting seat (21) as the axis. The adjustable seat (6) comprises a supporting frame (61) inserted into the vehicle body (1), and a plurality of positioning holes (63) are formed in the inner cavity of the supporting frame (61) for inserting the locking mechanism (7).

2. A portable compact electrically driven bicycle according to claim 1, characterized in that: The locking mechanism (7) comprises a positioning block (74) inserted into the corresponding two groups of positioning holes (63), and the two groups of positioning blocks (74) are respectively fixedly connected with a first right-angle rod (71) and a second right-angle rod (73) on one side, and the opposite sides of the first right-angle rod (71) and the second right-angle rod (73) are provided with a gear slot, and the vehicle body (1) is provided with a gear (72) engaged with the first right-angle rod (71) and the second right-angle rod (73).

3. A portable compact electrically driven bicycle according to claim 2, characterized in that: The first right-angle rod (71) is provided with a pull ring (76) at one end outside the vehicle body (1), and the opposite sides of the two groups of positioning blocks (74) are provided with telescopic sleeve rods, and the outer sides of the telescopic sleeve rods are provided with return springs (75).

4. A portable compact electrically driven bicycle according to claim 3, characterized in that: The supporting frame (61) is arranged in the shape of a Chinese character, the upper surface of the supporting frame (61) is provided with a cushion (62), and the upper surface of the vehicle body (1) is provided with two groups of rectangular through holes for the supporting frame (61) to pass through.

5. A portable compact electrically driven bicycle according to claim 4, characterized in that: The outer lower end of the bottom cylinder (51) is fixedly connected with a protruding block (55), the protruding block (55) is inserted with a butterfly bolt (56) threadedly connected with the connecting seat (21), and the outer upper end of the bottom cylinder (51) is threadedly connected with a locking sleeve (54) for locking the inner rod (52).

6. A portable compact electrically driven bicycle according to claim 5, characterized in that: The lower end of the inner rod (52) is symmetrically provided with two groups of spring clamping blocks (57), the outer side of the bottom cylinder (51) is symmetrically provided with a plurality of clamping grooves (59) for embedding the two groups of spring clamping blocks (57), the upper end of the inner rod (52) is provided with a handle (53), the outer side of the inner rod (52) is provided with a guide groove (58), and the inner wall of the bottom cylinder (51) is fixedly connected with a guide beam.

7. The portable compact electrically driven bicycle according to claim 1, wherein: The upper surface of the vehicle body (1) is provided with a foot pedal area (8), one end of the upper surface of the vehicle body (1) is provided with a storage groove (9), and one end of the vehicle body (1) is provided with a vehicle lamp (4).

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