Electric bicycle frame

Abstract

The utility model discloses an electric bicycle frame which comprises a frame body, the frame body comprises a seat tube, a bicycle head tube, a rear upper fork and a rear lower fork, a middle shaft is arranged at the bottom of the seat tube, the tube wall of the bicycle head tube is fixedly connected with an upper tube and a lower tube respectively, the lower tube is fixedly connected with an installation seat, and the installation seat is fixedly connected with a rear fork. A battery bin is installed on the installation base, a wire outlet is formed in the surface of the battery bin, a bin cover is installed on the top of the battery bin, the upper rear forks are located above the lower rear forks, the number of the upper rear forks is a pair, a branching pipe is arranged on the seat pipe, and wire grooves are fixedly connected to the upper rear fork and the lower rear fork in each pair. According to the utility model, the battery compartment adopts a modular design and is convenient to disassemble, batteries of different models can be replaced as required, and cables can be effectively limited and fixed, so that the cables are effectively prevented from being exposed, twisted and wound.

Description

Technical Field

[0001] The utility model belongs to the technical field of bicycle frames, in particular to an electric bicycle frame. Background Art

[0002] An electric bicycle is a vehicle that incorporates a motor, controller, battery, throttle, brake handles, and other control components, along with a display instrument system, based on a conventional bicycle frame. Electric bicycles offer numerous advantages, including being environmentally friendly and energy-efficient, flexible and convenient, healthy and environmentally friendly, highly practical, easy to operate, affordable, safe, and aesthetically pleasing.

[0003] The electric bicycle frame is one of the core components of the electric bicycle. It not only supports the weight of the entire vehicle, but also affects the comfort and safety of riding. There are some color cards on the market. For example, an electric bicycle frame and an electric bicycle with the announcement number CN208181312U are disclosed on the China Patent Network. This electric bicycle frame strengthens the overall structural strength of the electric bicycle frame and simplifies the assembly process of the arc-shaped mounting part, thereby reducing the manufacturing cost of the electric bicycle frame and improving production efficiency. However, there are some defects and deficiencies that need to be improved: (1) Due to the structural design of some existing electric bicycle frames, the battery is often fixed on the frame, which is difficult to disassemble and replace. This not only reduces the compatibility and scalability of the electric bicycle, but also limits the user's choice and upgrade space, and is also inconvenient for regular maintenance and inspection of the battery; (2) Some existing electric bicycle frames lack a limit and fixing structure for the cable. The cable is often exposed and twisted and entangled, which not only affects the appearance, but also easily causes damage to the cable, resulting in some functions of the electric bicycle being unable to be used normally. Therefore, in response to the above problems, the electric bicycle frame provided by the utility model is of great significance. Utility Model Content

[0004] The utility model provides an electric bicycle frame, which is fixed to a mounting seat by the mutual cooperation between studs, mounting holes and nuts, so that the batteries in the battery compartment can be used to power the power elements on the electric bicycle. The battery compartment can be removed by unscrewing the nuts, so that batteries of different models can be replaced as needed, which not only effectively improves the compatibility and scalability of the electric bicycle, but also facilitates regular maintenance and inspection of the batteries; the cables can be effectively limited and fixed by the combined action of the branch pipe and each wire trough, thereby effectively avoiding exposure of the cables and twisting and entanglement, which not only improves the appearance of the electric bicycle, but also avoids damage to the cables that causes some functions of the electric bicycle to be unable to be used normally. In summary, the problems in the background technology are solved.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model discloses an electric bicycle frame, comprising a frame body, the frame body comprising a seat tube, a head tube, a seat fork and a chain fork, the bottom of the seat tube is provided with a middle axis, the tube wall of the head tube is fixedly connected to the upper tube and the lower tube respectively, the upper tube is located above the lower tube, and the other ends of the upper tube and the lower tube are fixedly connected to the seat tube and the middle axis respectively, the upper part of the lower tube is fixedly connected to the mounting seat, the mounting seat is installed with a battery compartment, the surface of the battery compartment is provided with an outlet, and the top of the battery compartment is provided with a compartment cover, the seat fork is located above the chain fork, and the number of the seat forks is a pair, one end of each pair of the seat forks and chain forks is fixedly connected together, and the other end of each pair of the seat forks and chain forks is fixedly connected to the seat tube and the middle axis respectively, a branching pipe is provided on the seat tube, and each pair of the seat forks and chain forks is fixedly connected with a wire groove.

[0007] Furthermore, the side of the mounting base is T-shaped, and a plurality of mounting holes are opened on its surface. A plurality of studs are fixedly connected to the bottom of the battery compartment, and nuts that match them are threadedly connected to the studs. The number of the studs and the mounting holes are the same, the diameters are equal, and the center of each stud corresponds one-to-one to the center of each mounting hole.

[0008] Furthermore, a cover handle is fixedly connected to the top of the compartment cover, and a sealing block is fixedly connected to the bottom thereof. The length and width of the sealing block are respectively equal to the length and width of the inner wall of the battery compartment, and a sealing ring is provided on the side wall surface of the sealing block.

[0009] Furthermore, the branch tube is a circular tube and is located between the seat fork and the chain stay, and the tube wall of the branch tube is fixedly connected to a plurality of fixed columns, the other end of the fixed column is fixedly connected to the seat tube, and the wire groove is a rectangular groove structure, and its side surface is C-shaped.

[0010] Furthermore, each pair of seat forks and chain stays are fixedly connected to the connection points with reinforcing ribs, and each pair of seat forks and chain stays are fixedly connected with a plurality of reinforcing rods, and the reinforcing rods are equidistantly linearly distributed along the length direction of the seat forks and chain stays.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) When in use, the electric bicycle frame of the utility model is fixed to the mounting seat by the mutual cooperation between the studs, the mounting holes and the nuts, so that the batteries in the battery compartment can be used to power the power components on the electric bicycle. The battery compartment can be removed by unscrewing the nuts so that different types of batteries can be replaced as needed, which not only effectively improves the compatibility and scalability of the electric bicycle, but also facilitates regular maintenance and inspection of the batteries;

[0013] (2) When the electric bicycle frame of the utility model is in use, the cables can be effectively limited and fixed by the combined action of the branching tube and the various wire troughs, thereby effectively preventing the cables from being exposed and twisted and entangled, which not only improves the appearance of the electric bicycle, but also prevents the cables from being damaged and causing some functions of the electric bicycle to be unable to be used normally.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a structural schematic diagram of an electric bicycle frame of the present utility model;

[0017] Figure 2 This is a schematic structural diagram of the frame body of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the battery compartment in the present utility model;

[0019] Figure 4 This is a schematic diagram of the top structure of the middle compartment cover of the present invention;

[0020] Figure 5 This is a schematic diagram of the bottom structure of the middle compartment cover of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of the branch line pipe in the utility model;

[0022] Figure 7 It is a structural schematic diagram of the wire duct in the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1. Seat tube; 2. Head tube; 3. Seat stay; 4. Chain stay; 5. Bottom bracket; 6. Top tube; 7. Down tube; 8. Mounting bracket; 9. Battery compartment; 10. Wire outlet; 11. Compartment cover; 12. Wiring pipe; 13. Wire guide; 14. Mounting hole; 15. Stud; 16. Nut; 17. Lid handle; 18. Sealing block; 19. Sealing ring; 20. Fixing column; 21. Reinforcement rib; 22. Reinforcement rod. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that terms such as "relative", "one end", "inside", "lateral", "end", "two ends", "both sides", "front", "one end face", "the other end face" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] See also Figure 1-7 As shown, an electric bicycle frame of the present invention includes a frame body, which includes a seat tube 1, a head tube 2, a seat fork 3 and a chain fork 4. The seat tube 1 is used to support the seat post and seat of the electric bicycle. A middle shaft 5 is provided at the bottom of the seat tube 1. The middle shaft 5 is used to install the pedal bearing system to serve as the core part of the transmission system. The head tube 2 is used to install the steering bearing, which is responsible for supporting and connecting the steering system. The tube walls of the head tube 2 are fixedly connected with an upper tube 6 and a down tube 7 respectively. The upper tube 6 provides the lateral strength of the frame body, and the down tube 7 bears most of the riding stress. The upper tube 6 is located above the down tube 7, and the other ends of the upper tube 6 and the down tube 7 are fixedly connected to the seat tube 1 and the middle shaft 5 respectively. The upper of the down tube 7 is fixedly connected There is a mounting base 8, on which a battery compartment 9 is mounted, and a battery is mounted in the battery compartment 9. The battery can power the power components on the electric bicycle. A wire outlet 10 is provided on the surface of the battery compartment 9, and a compartment cover 11 is installed on the top of the battery compartment 9. The upper fork 3 provides support for the rear wheel and the overall strength of the frame body. The lower fork 4 provides support for the rear wheel and fixes the transmission chain. The upper fork 3 is located above the lower fork 4, and there are two of them. One end of each pair of upper forks 3 and lower forks 4 is fixedly connected together, and the other end of each pair of upper forks 3 and lower forks 4 is fixedly connected to the seat tube 1 and the middle axis 5 respectively. A branching tube 12 is provided on the seat tube 1, and a wire groove 13 is fixedly connected to each pair of upper forks 3 and lower forks 4.

[0028] Among them, the side of the mounting base 8 is T-shaped, and a plurality of mounting holes 14 are opened on its surface. A plurality of studs 15 are fixedly connected to the bottom of the battery compartment 9, and nuts 16 are threadedly connected to the studs 15 to match them. The number of studs 15 and the mounting holes 14 are the same, and the diameters are equal. The center of each stud 15 corresponds one-to-one with the center of each mounting hole 14. Each stud 15 can be aligned with and pass through the corresponding mounting hole 14. At this time, the nut 16 is threaded onto each stud 15 and tightened. The battery compartment 9 can be fixed to the mounting base 8 through the mutual cooperation between the stud 15, the mounting hole 14, and the nut 16. The battery compartment 9 can be removed by unscrewing the nut 16 so that different types of batteries can be replaced as needed. This not only effectively improves the compatibility and scalability of the electric bicycle, but also facilitates regular maintenance and inspection of the battery.

[0029] Among them, the top of the compartment cover 11 is fixedly connected to the cover handle 17, and the bottom thereof is fixedly connected to the sealing block 18. The length and width of the sealing block 18 are respectively equal to the length and width of the inner wall of the battery compartment 9, and a layer of sealing ring 19 is provided on the side wall surface of the sealing block 18. The sealing ring 19 is made of elastic materials such as rubber and is fixed by glue or other means. When the compartment cover 11 is covered on the battery compartment 9, the sealing block 18 can be attached to the inner wall of the battery compartment 9. At this time, the sealing ring 19 can be used to fill the gap between the sealing block 18 and the inner wall of the battery compartment 9 to achieve a sealing effect, thereby effectively preventing external dust and moisture from entering the battery compartment 9 through the gap and adhering to the battery surface, affecting the normal operation and service life of the battery.

[0030] Among them, the branching tube 12 is a circular tube and is located between the rear upper fork 3 and the rear lower fork 4, and the tube wall of the branching tube 12 is fixedly connected to several fixing columns 20, and the other end of the fixing column 20 is fixedly connected to the seat tube 1, and the wire groove 13 is a rectangular groove structure, and its side is C-shaped. After the battery in the battery compartment 9 is connected to the cable, the cable can be led out from the outlet 10, and part of the led-out cable can pass through the wire groove 13 located on the rear lower fork 4, and the other part of the cable can pass through the branching tube 12 and the wire groove 13 located on the rear upper fork 3. At this time, the cables can be effectively limited and fixed by the joint action of the branching tube 12 and each wire groove 13, thereby effectively avoiding the cable from being exposed and twisting and entangled, which not only improves the appearance of the electric bicycle, but also avoids damage to the cable and causes some functions of the electric bicycle to be unable to be used normally.

[0031] Among them, each pair of seat forks 3 and chain stays 4 are fixedly connected with reinforcing ribs 21 at their connections, and each pair of seat forks 3 and chain stays 4 are fixedly connected with a number of reinforcing rods 22, which are evenly spaced linearly distributed along the length direction of the seat forks 3 and chain stays 4. The frame body can be reinforced by the reinforcing ribs 21 and the reinforcing rods 22 to improve the structural firmness of the frame body, thereby effectively preventing it from deforming after being subjected to stress for a long time.

[0032] The circuits, electronic components and chip modules involved in the present invention are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0033] The standard parts used in the application documents can all be purchased on the market. All components in this application document can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. The electrical components appearing in this article are all connected to the external main controller and 220V AC power, and the main controller can be a conventional known device that controls the LED lamp body, etc.

[0034] The working principle of this utility model is:

[0035] When the present invention is in use, other relevant parts of the electric bicycle can be connected and supported through the frame body. The seat tube 1 is used to support the seat post and seat of the electric bicycle. The middle axis 5 is used to install the pedal bearing system, which serves as the core part of the transmission system. The head tube 2 is used to install the steering bearing, which is responsible for supporting and connecting the steering system. The upper tube 6 provides the lateral strength of the frame body. The lower tube 7 bears most of the riding stress. The upper fork 3 provides support for the rear wheel and the overall strength of the frame body. The lower fork 4 provides support for the rear wheel and fixes the transmission chain. A mounting seat 8 is fixedly connected to the lower tube 7. A battery compartment 9 is installed on the mounting seat 8. A battery is installed in the battery compartment 9. The power components on the electric bicycle can be powered by the battery. A wire outlet 10 is provided on the surface of the battery compartment 9. When the battery in the battery compartment 9 is connected to the cable, the cable can be connected to the battery compartment 9. The cable is led out from the outlet 10, and part of the led-out cable can pass through the wire groove 13 located on the rear lower fork 4, and the other part of the cable can pass through the branch tube 12 and the wire groove 13 located on the rear upper fork 3. At this time, the cable can be effectively limited and fixed by the joint action of the branch tube 12 and each wire groove 13, thereby effectively avoiding the cable from being exposed and twisting and entangled, which not only improves the appearance of the electric bicycle, but also avoids damage to the cable and causes some functions of the electric bicycle to be unable to be used normally. The battery compartment 9 is fixed to the mounting base 8 through the mutual cooperation between the stud 15, the mounting hole 14, and the nut 16. The battery compartment 9 can be removed by unscrewing the nut 16 to replace batteries of different models as needed. It not only effectively improves the compatibility and scalability of the electric bicycle, but also facilitates regular maintenance and inspection of the battery.

[0036] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An electric bicycle frame, characterized in that: The bicycle comprises a frame body, the frame body comprises a seat tube, a head tube, a seat fork and a chain fork, a middle axis is arranged at the bottom of the seat tube, an upper tube and a lower tube are fixedly connected to the tube wall of the head tube respectively, the upper tube is located above the lower tube, and the other ends of the upper tube and the lower tube are fixedly connected to the seat tube and the middle axis respectively, a mounting seat is fixedly connected on the upper of the lower tube, a battery compartment is installed on the mounting seat, a wire outlet is opened on the surface of the battery compartment, and a compartment cover is installed on the top of the battery compartment, the seat fork is located above the chain fork, and the number of the seat forks is one pair, one end of each pair of the seat forks and chain forks is fixedly connected together, and the other end of each pair of the seat forks and chain forks is fixedly connected to the seat tube and the middle axis respectively, a branching pipe is arranged on the seat tube, and a wire groove is fixedly connected to each pair of the seat forks and chain forks.

2. An electric bicycle frame according to claim 1, characterized in that: The side surface of the mounting seat is T-shaped, and a plurality of mounting holes are opened on its surface. A plurality of studs are fixedly connected to the bottom of the battery compartment, and nuts matching them are threadedly connected to the studs. The number of the studs and the mounting holes are the same, the diameters are equal, and the center of each stud corresponds one-to-one to the center of each mounting hole.

3. The electric bicycle frame according to claim 1, characterized in that: The top of the compartment cover is fixedly connected with a cover handle, and the bottom thereof is fixedly connected with a sealing block. The length and width of the sealing block are respectively equal to the length and width of the inner wall of the battery compartment, and a sealing ring is arranged on the side wall surface of the sealing block.

4. The electric bicycle frame according to claim 1, characterized in that: The branching tube is in a round tube shape and is located between the upper fork and the lower fork. The tube wall of the branching tube is fixedly connected with a plurality of fixing columns, the other end of the fixing column is fixedly connected to the seat tube, and the wire groove is a rectangular groove structure with a C-shaped side surface.

5. The electric bicycle frame according to claim 1, characterized in that: A reinforcing rib is fixedly connected to the connection between each pair of the upper forks and the rear chain stays, and a plurality of reinforcing rods are fixedly connected between each pair of the upper forks and the rear chain stays, and the reinforcing rods are equidistantly linearly distributed along the length direction of the upper forks and the rear chain stays.

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