A double-battery-cavity electric bicycle frame

Abstract

The utility model relates to a bicycle frame technical field discloses a double battery cavity's electric bicycle frame, including first frame pipe and second frame pipe, one end of first frame pipe is foldably connected with one end of second frame pipe, and first frame pipe and second frame pipe form V type structure, and the inside of first frame pipe and second frame pipe is hollow and forms battery mounting cavity, double battery cavity's electric bicycle frame, through first frame pipe and second frame pipe form V type structure, improve the stability of frame, utilize the inside space of first frame pipe and second frame pipe to form battery mounting cavity simultaneously, thereby can install battery in the inside of first frame pipe and second frame pipe, prevent two batteries from being exposed outside the frame, can guarantee the use endurance of electric bicycle, and can more effectively protect battery, and first frame pipe and second frame pipe are foldable, thereby facilitate opening two frame pipes to carry out the installation operation to corresponding battery.

Description

Technical Field

[0001] This utility model relates to the field of bicycle frame technology, and more specifically, to an electric bicycle frame with dual battery chambers. Background Technology

[0002] Electric bicycles are widely used in daily life due to their environmentally friendly, clean, lightweight, and flexible characteristics. They are often used as a means of transportation for riding, off-roading, and outings. The batteries used in electric bicycles are usually fixed on the outside of the frame. In order to provide longer battery life, electric bicycles are gradually adopting a dual-battery structure, which means that more battery installation positions are needed. For example, Chinese patent CN216546493U discloses a folding shock-absorbing electric bicycle frame with dual battery mounting positions. The inner cavity of the second connecting tube forms the first battery mounting position. The tail fork assembly includes two tail fork units spaced apart on the left and right and a battery mounting seat. The tail fork unit includes an upper fork, a lower fork, and a fork piece disposed between the upper fork and the lower fork. The two upper forks are integrally bent. The front end of the battery mounting seat is connected to the front end of the two upper forks respectively, and the rear end of the battery mounting seat is connected to the rear end of the two upper forks respectively through two support rods. The battery mounting seat, support rods, and upper forks form a triangular structure. The upper surface of the battery mounting seat forms the second battery mounting position. The battery mounting seat includes an outer frame and a connecting plate disposed inside the outer frame. The connecting plate is provided with an oblong mounting hole.

[0003] Therefore, in the aforementioned existing vehicle frame structure, the second battery is located on the upper surface of the rear seat. However, although the first battery can be inside the connecting tube, the second battery is exposed on the outside of the frame, making it susceptible to damage and posing a safety hazard. Utility Model Content

[0004] In order to overcome the defects of the existing technology, this utility model provides an electric bicycle frame with dual battery chambers to solve the above-mentioned problems.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an electric bicycle frame with dual battery chambers, including: a first frame tube and a second frame tube, one end of the first frame tube and one end of the second frame tube are foldably connected, the first frame tube and the second frame tube form a V-shaped structure, and both the first frame tube and the second frame tube are hollow and form a battery mounting cavity.

[0006] In the above-mentioned electric bicycle frame with dual battery chambers, a head tube is provided at the end of the first frame tube away from the second frame tube, and a rear seat is provided at the end of the second frame tube away from the first frame tube. The rear seat has a first opening that communicates with the battery mounting chamber in the second frame tube. A cover plate is detachably installed on the first opening. The first frame tube and the second frame tube are connected by a folding kit.

[0007] In the aforementioned electric bicycle frame with dual battery chambers, the folding kit includes a first connecting sleeve and a second connecting sleeve. The first frame tube has a second opening at the end away from the head tube. The first connecting sleeve is fitted onto the second opening, and the second connecting sleeve is fitted onto the end of the second frame tube away from the rear seat frame. One side of the first connecting sleeve and the second connecting sleeve are hinged to each other via a pivot. A lock handle is hinged to the other side of the second connecting sleeve. A lock seat is provided on the other side of the first connecting sleeve, which is opposite to the lock handle. The lock handle can be embedded in the lock seat, and both the lock handle and the lock seat have corresponding lock holes.

[0008] In the above-mentioned electric bicycle frame with dual battery chambers, a middle tube is installed on the upper side of the lower part of the second frame tube. The upper part of the middle tube is connected to the upper part of the second frame tube through a connecting block, so that the second frame tube, the middle tube and the connecting block are arranged in a triangular shape.

[0009] In the above-mentioned electric bicycle frame with dual battery chambers, a pedal axle seat is installed on the lower end face of the second frame tube, and a fork located below the second frame tube is hinged to the outer side of the pedal axle seat. A shock absorber is hinged between the second frame tube and the fork.

[0010] In the above-mentioned electric bicycle frame with dual battery chambers, a hinge seat is provided on the outer side of the pedal axle seat, and a fork connecting shaft is inserted inside the hinge seat, with one end of the fork sleeved on the fork connecting shaft.

[0011] In the above-mentioned electric bicycle frame with dual battery chambers, a first shock absorber connecting seat is provided on the lower side of the second frame tube, and a second shock absorber connecting seat is installed on the fork. One end of the shock absorber is hinged to the first shock absorber connecting seat through a first hinge shaft, and the other end is hinged to the second shock absorber connecting seat through a second hinge shaft.

[0012] The beneficial effects of this utility model are as follows: by forming a V-shaped structure with the first frame tube and the second frame tube, the stability of the frame is improved. At the same time, the internal space of the first frame tube and the second frame tube is used to form a battery mounting cavity, so that the battery can be installed inside the first frame tube and the second frame tube, preventing the two batteries from being exposed on the outside of the frame. This can ensure the battery's operating range while protecting the battery more effectively. The first frame tube and the second frame tube are foldable, which makes it convenient to open the two frame tubes to install the corresponding batteries. Attached Figure Description

[0013] Figure 1 This is one of the three-dimensional structural diagrams of the electric bicycle frame of this utility model.

[0014] Figure 2 This is the second three-dimensional structural diagram of the electric bicycle frame of this utility model.

[0015] Figure 3 This is the third three-dimensional structural diagram of the electric bicycle frame of this utility model.

[0016] Figure 4 This is one of the three-dimensional structural diagrams of the folding kit.

[0017] Figure 5 This is the second schematic diagram of the three-dimensional structure of the folding kit.

[0018] Figure 6 This is a three-dimensional structural diagram of the fork and shock absorber.

[0019] In the diagram: 1. First frame tube; 2. Second frame tube; 3. Head tube; 4. Rear seat frame; 5. Cover plate; 6. Center tube; 7. Connecting block; 8. Folding kit; 9. First connecting sleeve; 10. Second connecting sleeve; 11. Hinge seat; 12. Fork connecting shaft; 13. Fork; 14. First shock absorber connecting seat; 15. Second shock absorber connecting seat; 16. Shock absorber; 17. Second hinge shaft; 18. Pedal axle seat; 19. Shaft; 20. Lock handle; 21. Lock hole. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] Combination Figures 1 to 6A dual-battery-cavity electric bicycle frame includes a first frame tube 1 and a second frame tube 2. One end of the first frame tube 1 and one end of the second frame tube 2 are foldably connected. The first frame tube 1 and the second frame tube 2 form a V-shaped structure. Both the first frame tube 1 and the second frame tube 2 are hollow and form battery mounting cavities. The advantages of this invention are: by forming the first frame tube 1 and the second frame tube 2 into a V-shaped structure, the stability of the frame is improved. At the same time, the battery mounting cavities are formed by utilizing the internal space of the first frame tube 1 and the second frame tube 2, so that the batteries can be installed inside the first frame tube 1 and the second frame tube 2, preventing the two batteries from being exposed on the outside of the frame. This can ensure the electric bicycle's operating range and more effectively protect the batteries. The first frame tube 1 and the second frame tube 2 are foldable, making it convenient to open the two frame tubes to install the corresponding batteries.

[0022] In this embodiment, a head tube 3 is provided at the end of the first frame tube 1 away from the second frame tube 2, and a rear seat frame 4 is provided at the end of the second frame tube 2 away from the first frame tube 1. The rear seat frame 4 has a first opening that communicates with the battery mounting cavity inside the second frame tube 2. A cover plate 5 is detachably installed on the first opening. The first frame tube 1 and the second frame tube 2 are connected by a folding kit 8. The head tube 3 is the tube body used to install the bicycle head. The cover plate 5 can be installed on the rear seat frame 4 with screws, and a sealing ring can be provided between the cover plate 5 and the rear seat frame 4 to seal the battery inside the second frame tube 2 through the first opening after the cover plate 5 is opened.

[0023] The folding kit 8 in this embodiment includes a first connecting sleeve 9 and a second connecting sleeve 10. A second opening is provided at the end of the first frame tube 1 furthest from the head tube 3. The first connecting sleeve 9 is fitted onto the second opening and installed to the end face of the first frame tube 1 with screws. A sealing ring can also be placed during installation. The second connecting sleeve 10 is fitted onto the end of the second frame tube 2 furthest from the rear seat frame 4 and installed to the end face of the second frame tube 2 with screws. A sealing ring is placed during installation. One side of the first connecting sleeve 9 and the second connecting sleeve 10 is hinged to each other via a pivot 19. A locking handle 20 is hinged to the other side of the second connecting sleeve 10. The first connecting sleeve... On the other side of 9, there is a lock seat opposite to the lock handle 20. The lock handle 20 can be embedded in the lock seat, and both the lock handle 20 and the lock seat have corresponding lock holes 21. A locking bolt can be passed through the lock hole 21 to lock the lock handle 20 in the lock seat. When folding is required, the locking bolt can be removed from the lock hole 21, and the lock handle 20 can be swung to swing the first frame tube 1 and the second frame tube 2 around the pivot 19 to expose the second opening, which facilitates the installation and removal of the battery from the first frame tube 1. The contact surfaces of the first connecting sleeve 9 and the second connecting sleeve 10 are provided with sealing rings so that the first connecting sleeve 9 and the second connecting sleeve 10 are sealed after being combined.

[0024] In this embodiment, a middle tube 6 is installed on the upper side of the lower part of the second frame tube 2. The middle tube 6 is used to install the bicycle saddle. The upper part of the middle tube 6 is connected to the upper part of the second frame tube 2 through a connecting block 7, so that the second frame tube 2, the middle tube 6 and the connecting block 7 are arranged in a triangle; so that the frame can better support the user's weight.

[0025] In this embodiment, a pedal axle seat 18 is installed on the lower end face of the second frame tube 2. A fork 13 located below the second frame tube 2 is hinged to the outer side of the pedal axle seat 18. The fork 13 is used to install the bicycle rear wheel. A shock absorber 16 is hinged between the second frame tube 2 and the fork 13. The shock absorber 16 can make the user more comfortable.

[0026] Specifically, in this embodiment, a hinge seat 11 is provided on the outer side of the foot pedal axle seat 18, and a fork connecting shaft 12 is passed through the hinge seat 11. One end of the fork 13 is sleeved on the fork connecting shaft 12. A first shock absorber connecting seat 14 is provided on the lower side of the second frame tube 2, and a second shock absorber connecting seat 15 is installed on the fork 13. One end of the shock absorber 16 is hinged to the first shock absorber connecting seat 14 through the first hinge shaft, and the other end is hinged to the second shock absorber connecting seat 15 through the second hinge shaft 17.

[0027] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A dual-battery-chamber electric bicycle frame, characterized in that, include: The first frame tube (1) and the second frame tube (2) are connected in a foldable manner, with one end of the first frame tube (1) and one end of the second frame tube (2) forming a V-shaped structure. Both the first frame tube (1) and the second frame tube (2) are hollow and form a battery mounting cavity.

2. The electric bicycle frame with dual battery chambers according to claim 1, characterized in that, The first frame tube (1) is provided with a head tube (3) at one end away from the second frame tube (2), and the second frame tube (2) is provided with a rear seat frame (4) at one end away from the first frame tube (1). The rear seat frame (4) has a first opening that communicates with the battery mounting cavity inside the second frame tube (2). A cover plate (5) is detachably installed on the first opening. The first frame tube (1) and the second frame tube (2) are connected by a folding kit (8).

3. The electric bicycle frame with dual battery chambers according to claim 2, characterized in that, The folding kit (8) includes a first connecting sleeve (9) and a second connecting sleeve (10). The first frame tube (1) has a second opening at one end away from the head tube (3). The first connecting sleeve (9) is fitted onto the second opening. The second connecting sleeve (10) is fitted onto one end of the second frame tube (2) away from the rear seat frame (4). One side of the first connecting sleeve (9) and the second connecting sleeve (10) are hinged to each other by a pivot (19). The other side of the second connecting sleeve (10) is hinged to a lock handle (20). The other side of the first connecting sleeve (9) is provided with a lock seat opposite to the lock handle (20). The lock handle (20) can be embedded in the lock seat. Both the lock handle (20) and the lock seat have corresponding lock holes (21).

4. The electric bicycle frame with dual battery chambers according to claim 2, characterized in that, A middle tube (6) is installed on the upper side of the lower part of the second frame tube (2). The upper part of the middle tube (6) is connected to the upper part of the second frame tube (2) through a connecting block (7), so that the second frame tube (2), the middle tube (6) and the connecting block (7) are arranged in a triangle.

5. The electric bicycle frame with dual battery chambers according to claim 4, characterized in that, A foot axle seat (18) is installed on the lower end face of the second frame tube (2). A fork (13) located below the second frame tube (2) is hinged to the outer side of the foot axle seat (18). A shock absorber (16) is hinged between the second frame tube (2) and the fork (13).

6. The electric bicycle frame with dual battery chambers according to claim 5, characterized in that, The foot pedal axle seat (18) is provided with a hinge seat (11) on its outer side. A fork connecting shaft (12) is inserted inside the hinge seat (11). One end of the fork (13) is sleeved on the fork connecting shaft (12).

7. The electric bicycle frame with dual battery chambers according to claim 5, characterized in that, The lower side of the second frame tube (2) is provided with a first shock absorber connecting seat (14), and the fork (13) is provided with a second shock absorber connecting seat (15). One end of the shock absorber (16) is hinged to the first shock absorber connecting seat (14) through a first hinge shaft, and the other end is hinged to the second shock absorber connecting seat (15) through a second hinge shaft (17).

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