Frame integrated power-assisted bicycle

Abstract

The utility model relates to the technical field of power-assisted bicycle discloses a power-assisted bicycle of frame integral type, including liquid state die forging integrated frame, the middle part of frame has the mounting section that extends upwards, is installed on mounting section and has the cushion, the rear part of frame has rear frame section, and the rear wheel is connected on rear frame section, the front part of frame has front frame section, and front frame section is connected with front fork frame, and front fork frame is connected with front wheel, and mounting section, front frame section and rear frame section integrated, compared with prior art, the utility model provides a power-assisted bicycle of frame integral type, and the frame is integrated by liquid state die forging, and the frame integral type structure, and the mounting section can install the cushion, and the front frame section connects the front fork frame, and the front fork frame connects the front wheel, and the rear frame section connects the rear wheel, and the overall structure is simple, does not need to assemble the frame, saves the assembly efficiency of power-assisted bicycle, improves the overall strength of power-assisted bicycle.

Description

Technical Field

[0001] This utility model patent relates to the technical field of electric bicycles, and more specifically, to an electric bicycle with an integrated frame. Background Technology

[0002] A power-assisted bicycle is a type of bicycle that uses a battery as an auxiliary power source. It is equipped with a motor that can provide power assistance, enabling both human-powered riding and motor-assisted propulsion.

[0003] A power-assisted bicycle has a frame, which serves as the main framework and provides support. The front wheel is mounted at the front of the frame, the rear wheel at the rear, and the pedals are located in the middle, connected to a sprocket. The rear wheel has a derailleur, which is connected to the sprocket by a chain. Additionally, a motor is mounted on the rear wheel, providing auxiliary power to drive its rotation.

[0004] In the existing technology, the frame is assembled from multiple parts, which is complex in structure, troublesome to assemble, inefficient to assemble, and results in poor overall strength of the bicycle. Utility Model Content

[0005] The purpose of this invention is to provide an integrated frame-assisted bicycle, which aims to solve the problem of complex frame structures in the prior art.

[0006] This utility model is implemented as follows: an integrated electric bicycle frame includes a frame integrally formed by liquid forging, the middle of the frame has an upwardly extending mounting section, on which a seat is mounted; the rear of the frame has a rear frame section, on which a rear wheel is connected; the front of the frame has a front frame section, on which a front fork is connected, and on which a front wheel is connected, the mounting section, the front frame section, and the rear frame section are integrally formed.

[0007] Furthermore, the top of the front fork has an upper shaft that passes through the front frame section and extends above the front frame section to form an upper section, which is connected to the handlebars.

[0008] Furthermore, along the rear-to-front direction of the frame, the front frame section is arranged at an upward angle, and the front frame section has an inner cavity with a top opening, in which a battery is installed.

[0009] Furthermore, the battery is provided with a cover plate, which closes the top opening of the inner cavity when the battery is placed in the inner cavity.

[0010] Furthermore, the frame has a central block in the middle, the top of the central block extends upward to form the mounting section, the front end of the central block extends forward at an angle to form the front frame section, and the rear end of the central block extends backward to form the rear frame section.

[0011] Furthermore, a rotating shaft is provided through the central block, with foot pedals at both ends of the rotating shaft, and a gear disk is provided on the rotating shaft; a transmission gear is provided on the rear wheel, a chain is connected between the transmission gear and the gear disk, and a motor is provided on the rear wheel to assist the rotation of the transmission gear.

[0012] Furthermore, the rear frame section includes two rear frame pieces arranged at intervals facing each other, with an installation gap between the two rear frame pieces, and the rear wheel is movably placed in the installation gap; the front end of the rear frame piece is connected to the middle block, the rear end of the rear frame piece extends rearward, the rear end of the rear frame piece has a rear end position, and the rear end positions of the two rear frame pieces are respectively movably connected to the two sides of the rear wheel.

[0013] Furthermore, the center of the rear frame piece is hollowed out to form a hollow area. The hollow area is strip-shaped and extends along the front-rear direction of the rear frame piece. The outer periphery of the hollow area is closed.

[0014] Furthermore, along the upward direction of the mounting section, the mounting section is arranged at a backward inclination, and a reinforcing section is provided on the outer periphery of the mounting section. The reinforcing section is connected to the central block and integrated with the central block. The front end of the reinforcing section wraps around the outer periphery of the mounting section, and the rear end of the reinforcing section extends backward away from the mounting section to form a rear section that deviates from the mounting section. The rear section abuts against the central block.

[0015] Furthermore, the bottom of the rear section abuts against the middle block and is integrated with the middle block. The top of the rear section has a top surface, which is arranged at an angle. The rear end of the top surface is connected to the middle block, and the front end of the top surface extends to the outer periphery of the mounting section.

[0016] Compared with the prior art, the integrated frame-assisted bicycle provided by this utility model has a frame formed by liquid forging. The frame is an integrated structure with a seat that can be installed in the mounting section. The front frame section is connected to the front fork, which is connected to the front wheel, and the rear frame section is connected to the rear wheel. The overall structure is simple, and there is no need to assemble the frame, which saves assembly efficiency and improves the overall strength of the bicycle. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the integrated frame electric bicycle provided by this utility model;

[0018] Figure 2This is a three-dimensional schematic diagram of the vehicle frame provided by this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0021] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0022] Reference Figure 1-2 The image shown is a preferred embodiment of the present invention.

[0023] The integrated frame-assisted bicycle includes a liquid-forged frame 300, with an upwardly extending mounting section 301 in the middle of the frame 300, on which a seat 206 is mounted; a rear frame section 305 at the rear of the frame 300, on which a rear wheel 200 is connected; and a front frame section 302 at the front of the frame 300, on which a front fork 101 is connected, and on which a front wheel 100 is connected. The mounting section 301, the front frame section 302, and the rear frame section 305 are integrally formed.

[0024] The aforementioned integrated frame electric bicycle has a frame 300 formed by liquid forging. The frame 300 is a one-piece structure. The mounting section 301 can install the seat 206. The front frame section 302 connects to the front fork 101, the front fork 101 connects to the front wheel 100, and the rear frame section 305 connects to the rear wheel 200. The overall structure is simple and does not require assembly of the frame 300, saving assembly efficiency and improving the overall strength of the electric bicycle.

[0025] In this embodiment, the top of the front fork 101 has an upper shaft that passes through the front frame section 302 and extends above the front frame section 302 to form an upper section 102. The upper section 102 is connected to the handlebars 103. This allows for the installation of the front fork 101 and the front frame section 302. With the upper shaft passing through the front frame section 302 and the handlebars 103 arranged on the upper section 102, the user can directly control the handlebars 103 while riding the electric bicycle, thereby causing the front fork 101 to swing and the front wheel 100 to swing, thus enabling the electric bicycle to turn.

[0026] In this embodiment, along the rear-to-front direction of the frame 300, the front frame section 302 is arranged at an upward angle. The front frame section 302 has an inner cavity with a top opening, and the battery 303 is installed in the inner cavity. Embedding the battery 303 in the front frame section 302 facilitates the installation and arrangement of the battery 303, saves space, and simplifies the structure.

[0027] In this embodiment, the battery 303 is provided with a cover plate. When the battery 303 is placed in the inner cavity, the cover plate closes the top opening of the inner cavity. This provides a sealing effect to protect the battery 303. Furthermore, a latch can be provided on the cover plate. When the battery 303 is embedded in the inner cavity, the latch locks with the front frame section 302, thus securing the battery 303 in the front frame section 302 and preventing theft.

[0028] In this embodiment, the frame 300 has a central block 205 in the middle. The top of the central block 205 extends upward to form a mounting section 301, the front end of the central block 205 extends forward at an angle to form a front frame section 302, and the rear end of the central block 205 extends backward to form a rear frame section 305. The central block 205, as the central position of the entire electric bicycle, plays a role in stabilizing the center.

[0029] In this embodiment, a rotating shaft is provided through the middle block 205, and foot pedals 205 are provided at both ends of the rotating shaft. A gear disk 204 is provided on the rotating shaft. A speed-changing gear 201 is provided on the rear wheel 200. A chain 203 is connected between the speed-changing gear 201 and the gear disk 204. A motor 202 is provided on the rear wheel 200 to assist the rotation of the speed-changing gear 201.

[0030] In this way, when the user uses the electric bicycle, pressing the pedal 205 drives the rotating shaft to rotate, which in turn drives the gear disc 204 to rotate. This, in turn, drives the chain 203 to rotate the gear 201, which in turn rotates the rear wheel 200, thus enabling the bicycle to move. The motor 202 can also drive the rear wheel 200 to rotate, thereby providing auxiliary power.

[0031] In this embodiment, the rear frame section 305 includes two rear frame pieces arranged at intervals facing each other, with an installation interval 307 between the two rear frame pieces, and the rear wheel 200 is movably placed in the installation interval 307; the front end of the rear frame piece is connected to the middle block 205, the rear end of the rear frame piece extends rearward, and the rear end of the rear frame piece has a rear end position 308, and the rear end positions 308 of the two rear frame pieces are respectively movably connected to the two sides of the rear wheel 200.

[0032] By arranging two rear frame pieces, it is easy to connect the rear wheel 200 to the rear frame section 305. The rear wheel 200 is directly embedded in the installation interval 307 and is in an active state. The rear end position 308 of the rear frame piece is connected to the side of the rear wheel 200, which is a simple structure.

[0033] In this embodiment, the center of the rear frame piece is hollowed out to form a hollow area 306. The hollow area 306 is strip-shaped and extends along the front-rear direction of the rear frame piece. The outer periphery of the hollow area 306 is closed. The closed hollow area 306 in the rear frame piece saves materials while ensuring the structural stability of the rear frame piece.

[0034] In this embodiment, the mounting section 301 is arranged at an upward angle from bottom to top. A reinforcing section 309 is provided on the outer periphery of the mounting section 301. The reinforcing section 309 is connected to the middle block 205 and integrated with the middle block 205. The front end of the reinforcing section 309 wraps around the outer periphery of the mounting section 301, and the rear end of the reinforcing section 309 extends backward away from the mounting section 301 to form a rear section 310 that deviates from the mounting section 301. The rear section 310 abuts against the middle block 205.

[0035] In this way, by arranging the reinforcing section 309 to wrap around the installation section 301, the installation section 301 can be reinforced, and the reinforcing section 309 forms a rear section 310, which abuts against the middle block 205, increasing the structural stability of the lower part of the entire installation section 301, and distributing the stress on the installation section 301.

[0036] In this embodiment, the bottom of the rear section 310 abuts against the middle block 205 and is integrated with the middle block 205. The top of the rear section 310 has a top surface 311, which is arranged at an angle. The rear end of the top surface 311 is connected to the middle block 205, and the front end of the top surface 311 extends to the outer periphery of the mounting section 301. In this way, the top surface 311 is arranged at an angle, which can better support the mounting section 301 from back to front.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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. A power-assisted bicycle with an integrated frame, characterized in that: The vehicle includes a frame integrally formed by liquid forging, wherein the frame has an upwardly extending mounting section in the middle, on which a seat is mounted; the rear of the frame has a rear frame section, on which a rear wheel is connected; the front of the frame has a front frame section, on which a front fork is connected, and the front fork is connected to a front wheel, wherein the mounting section, the front frame section, and the rear frame section are integrally formed.

2. The integrated frame electric bicycle as described in claim 1, characterized in that, The top of the front fork has an upper shaft that passes through the front frame section and extends above the front frame section to form an upper section, which is connected to the handlebars.

3. The integrated frame electric bicycle as described in claim 1, characterized in that, Along the rear-to-front direction of the frame, the front frame section is arranged at an upward angle, and the front frame section has an inner cavity with a top opening, in which a battery is installed.

4. The integrated frame electric bicycle as described in claim 3, characterized in that, The battery is equipped with a cover plate, which closes the top opening of the inner cavity when the battery is placed in the inner cavity.

5. The integrated frame electric bicycle as described in any one of claims 1 to 4, characterized in that, The frame has a central block in the middle, the top of the central block extends upward to form the mounting section, the front end of the central block extends forward at an angle to form the front frame section, and the rear end of the central block extends backward to form the rear frame section.

6. The integrated frame electric bicycle as described in claim 5, characterized in that, A rotating shaft is installed through the central block, with foot pedals at both ends of the rotating shaft and a gear disk on the rotating shaft; a transmission gear is installed on the rear wheel, and a chain connects the transmission gear and the gear disk; a motor that assists the rotation of the transmission gear is installed on the rear wheel.

7. The integrated frame electric bicycle as described in claim 5, characterized in that, The rear frame section includes two rear frame pieces arranged at intervals facing each other, with an installation gap between the two rear frame pieces, and the rear wheel is movably placed in the installation gap; the front end of the rear frame piece is connected to the middle block, the rear end of the rear frame piece extends rearward, the rear end of the rear frame piece has a rear end position, and the rear end positions of the two rear frame pieces are respectively movably connected to the two sides of the rear wheel.

8. The integrated frame electric bicycle as described in claim 7, characterized in that, The rear frame piece has a hollowed-out central section, forming a hollowed-out area. The hollowed-out area is strip-shaped and extends along the front-rear direction of the rear frame piece. The outer periphery of the hollowed-out area is closed.

9. The integrated frame electric bicycle as described in claim 5, characterized in that, Along the mounting section from bottom to top, the mounting section is arranged at a backward inclination. The outer periphery of the mounting section is provided with a reinforcing section, which is connected to the middle block and integrated with the middle block. The front end of the reinforcing section wraps around the outer periphery of the mounting section, and the rear end of the reinforcing section extends backward away from the mounting section to form a rear section that deviates from the mounting section. The rear section abuts against the middle block.

10. The integrated frame electric bicycle as described in claim 9, characterized in that, The bottom of the rear section abuts against the middle block and is integrated with the middle block. The top of the rear section has a top surface that is arranged at an angle. The rear end of the top surface is connected to the middle block, and the front end of the top surface extends to the outer periphery of the mounting section.

Images