CN215361727U

CN215361727U - Electric power-assisted bicycle frame

Info

Publication number: CN215361727U
Application number: CN202023118256.2U
Authority: CN
Inventors: 丁鹏
Original assignee: Bulu Laisi Taicang Electric Technology Co ltd
Current assignee: Bulu Laisi Taicang Electric Technology Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-12-31
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses an electric power-assisted bicycle frame which comprises an upper tube, a middle tube, a lower tube, a five-way tube, a head tube and a rear fork, wherein the upper tube, the middle tube and the lower tube form a triangular frame; an installation cavity is arranged in the five-way pipe, a middle shaft hole vertical to the triangular frame is arranged in the installation cavity, and the chain wheel can be rotatably installed in the middle shaft hole; the top of the mounting cavity is also provided with a motor mounting seat, and the motor can be mounted on the motor mounting seat and is in transmission connection with the chain wheel; the inside of low tube is provided with battery installation storehouse, and the battery can be installed in battery installation storehouse to be connected with the motor electricity. According to the electric power-assisted bicycle frame, the motor is arranged in the mounting cavity, so that the occupied space is reduced, the motor is close to the top of the mounting cavity, the space is fully utilized, the mounting position of a middle shaft is prevented from being influenced, and the original ergonomic design is ensured; through setting up the battery to the low tube, can fully guarantee the structural strength of well pipe to avoid riding in-process battery influence to ride comfortable.

Description

Electric power-assisted bicycle frame

Technical Field

The utility model belongs to the technical field of bicycle frames, and particularly relates to an electric power-assisted bicycle frame.

Background

The electric power-assisted bicycle is a novel two-wheel vehicle, belongs to a bicycle, is provided with a motor to provide auxiliary power, takes a battery as an auxiliary power source, is provided with a power auxiliary system, and is a novel vehicle capable of realizing integration of manpower riding and motor power assisting.

In the field of power-assisted bicycles, motor mounting positions are mainly divided into a middle motor and a hub motor. The middle-mounted motor is a motor mounted at the position of the five-way of the bicycle body, pedals are mounted on two sides of the middle-mounted motor, the bicycle can be ridden manually through the pedals under the condition that the motor does not have a power supply, and resistance is not different from that of a normal bicycle. A hub motor is a motor that is mounted in a bicycle hub. Compare in wheel hub motor, put the motor and all possess great advantage in aspects such as performance and cost. However, the existing built-in motors are all externally hung built-in motors, and have relatively large volume and large occupied space.

In addition, the installation mode of the battery directly determines the aesthetic degree of the vehicle body shape and the protection effect of the battery. Under the current situation, people prefer the structural design that battery and automobile body fully fuse together, and such motorcycle type is not only handsome in appearance more, because battery and frame combine inseparabler moreover, therefore better to the protective effect of battery. In the current design, the battery is still installed to the bicycle frame by adopting the battery support, and the requirements of people which are increasingly improved are difficult to meet in both the aspects of aesthetic property and structural strength.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to provide an electric power-assisted bicycle frame which is compact in structure, capable of reducing the occupied space of a motor, fully utilizing the space, avoiding influencing the installation position of a center shaft, guaranteeing the original human engineering design, guaranteeing the riding comfort level, fully guaranteeing the structural strength of a middle pipe, avoiding the influence of a battery on the riding comfort level, enabling the combination of the battery and the frame to be tight, improving the protection effect on the battery, effectively protecting the battery, prolonging the service life of the battery, increasing the attractiveness and being strong in practicability.

In order to achieve the purpose, the utility model provides an electric power-assisted bicycle frame which comprises an upper tube, a middle tube, a lower tube, a five-way tube, a head tube and a rear fork, wherein the upper tube, the middle tube and the lower tube form a triangular frame; the rear fork comprises an upper rear fork and a lower rear fork, one end of the lower rear fork is connected with the upper rear fork, the other end of the lower rear fork is connected with the five-way pipe, and the other end of the upper rear fork is connected with the middle pipe; the method is characterized in that: an installation cavity is arranged in the five-way pipe, a middle shaft hole perpendicular to the triangular frame is arranged in the installation cavity, and the chain wheel can be rotatably installed in the middle shaft hole; the top in the mounting cavity is also provided with a motor mounting seat, and a motor can be mounted on the motor mounting seat and is in transmission connection with the chain wheel; the inside of low tube is provided with battery installation storehouse, the battery can install in the battery installation storehouse, and with the motor electricity is connected.

In one example, a reduction gear mounting seat is further arranged in the mounting cavity, the reduction gear mounting seat is located between the central shaft hole and the motor mounting seat, and a reduction gear can be mounted on the reduction gear mounting seat and is in transmission connection with the chain wheel and the motor.

In one example, the five-way pipe is parallel to the two sides of the triangular frame are provided with protective shell mounting holes, the mounting cavity is parallel to the two sides of the triangular frame are provided with openings, and the protective shells can be mounted on the two sides of the five-way pipe through the protective shell mounting holes and cover the openings on the two sides of the mounting cavity.

In one example, a battery mounting opening is formed in the middle of the lower side surface of the lower tube, the inner side of the battery can be inserted into the battery mounting bin through the battery mounting opening, a bin cover matched with the battery mounting opening is arranged on the outer side of the battery, and the battery is detachably mounted in the battery mounting bin through the battery mounting opening.

In one example, the battery mounting bin comprises an upper mounting plate and a lower mounting plate which are respectively positioned on the upper side and the lower side of the battery mounting opening, the top surface of the lower mounting plate is provided with a contact copper sheet which is matched with a contact spring of the battery, the lower mounting plate is also provided with a locking rib which is matched with a groove at the bottom of the battery, and the locking rib can be clamped into the groove at the bottom of the battery so as to prevent the bottom of the battery from sliding along the top surface of the lower mounting plate; go up the mounting panel bottom surface and be provided with the adaptation the spring bolt of the recess of battery top surface, the spring bolt can slide the card and go into the recess of battery top surface, in order to prevent the battery top is followed go up the mounting panel bottom surface and slide, perhaps slide and leave the recess of battery top surface, so that the battery can be followed the battery installation storehouse is detached.

In one example, the lower pipe is provided with a starting lock, and the starting lock is close to the upper mounting plate and is in transmission connection with the lock tongue so as to drive the lock tongue to be clamped into or separated from a groove on the top surface of the battery; the starting lock further comprises a power switch, the power switch is electrically connected with the battery, and the starting lock is operated to control the on-off of the power switch.

The electric power-assisted bicycle frame provided by the utility model can bring the following beneficial effects:

1. the motor is arranged in the mounting cavity of the five-way pipe, so that the structure is compact, the occupied space of the motor is reduced, the motor is close to the top of the mounting cavity, the space is fully utilized, the mounting position of a middle shaft is prevented from being influenced, the original human engineering design is ensured, the riding comfort is ensured, the motor can be protected, and the service life of the motor is prolonged; through setting up the battery to the low tube, can fully guarantee the structural strength of well pipe, can avoid riding in-process battery influence comfortable riding, still make the combination of battery and frame inseparabler, improve the protective effect to the battery, the protection battery prolongs battery life, increases pleasing to the eye degree, and the practicality is strong.

2. Through setting up the reduction gear mount pad, can install reduction gear to guarantee the sufficient moment of torsion of motor, guarantee the normal work of motor, and reduction gear sets up in the five-way pipe, can make the structure compacter, reduces the space and occupies, guarantees to ride comfortablely, and the practicality is strong.

3. Through setting up the protective housing mounting hole, can be at five-way pipe both sides mount pad protective housing, mechanical structure such as motor and reduction gear of protection installation intracavity, increase of service life can also avoid in the in-process foreign matter of riding gets into five-way pipe, guarantees the safety of riding, promotes to ride and experiences, and the practicality is strong.

4. Through setting up the battery installing port, convenient to detach installs the battery, simplifies the structure, improves the reliability, can also be convenient for maintain and assemble, and the practicality is strong.

5. The contact copper sheet is arranged, so that the detachable electric connection of the battery is conveniently realized, the contact effect can be ensured, and the normal work of the battery is ensured; through setting up lock muscle and spring bolt, can realize the quick installation and the dismantlement of battery, and can guarantee that the installation is firm stable, and the reinforcing is used and is experienced, and the practicality is strong.

6. Through setting up the start lock, can pin the battery, avoid the battery to lose, can also close the power, reduce the battery loss, the practicality is strong.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of a frame of an electric bicycle according to the present invention;

FIG. 2 is a schematic structural view of a mounting cavity of the present invention;

FIG. 3 is a front view of the battery mounting compartment of the present invention;

FIG. 4 is a schematic structural view of the lower mounting plate of the present invention;

fig. 5 is a schematic structural diagram of the upper mounting plate of the present invention.

Detailed Description

In order to more clearly explain the overall concept of the utility model, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for ease of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description of the present specification, reference to the description of the terms "one aspect," "some aspects," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

As shown in fig. 1 to 5, an embodiment of the present invention provides an electric bicycle frame 100, which includes an upper tube 1, a middle tube 2, a lower tube 3, a bottom tube 4, a head tube 5 and a rear fork 6, wherein the upper tube 1, the middle tube 2 and the lower tube 3 form a triangular frame, the middle tube 2 and one end of the lower tube 3 are connected to the bottom tube 4, and one end of the upper tube 1 and one end of the lower tube 3 are connected to the head tube 5; the rear fork 6 comprises a rear upper fork and a rear lower fork, one end of the rear lower fork is connected with the rear upper fork, the other end of the rear lower fork is connected with the five-way pipe 4, and the other end of the rear upper fork is connected with the middle pipe 2; the method is characterized in that: a mounting cavity 41 is arranged in the five-way pipe 4, a middle shaft hole 42 vertical to the triangular frame is arranged in the mounting cavity 41, and the chain wheel can be rotatably mounted in the middle shaft hole 42; a motor mounting seat 43 is further arranged at the top in the mounting cavity 41, and the motor can be mounted on the motor mounting seat 43 and is in transmission connection with the chain wheel; the lower tube 3 is provided inside with a battery mounting chamber 31, and a battery can be mounted in the battery mounting chamber 31 and electrically connected to the motor. The motor is arranged in the mounting cavity 41 of the five-way pipe 4, so that the structure is compact, the occupied space of the motor is reduced, the motor is close to the top of the mounting cavity 41, the space is fully utilized, the mounting position of a middle shaft is prevented from being influenced, the original ergonomic design is ensured, the riding comfort is ensured, the motor can be protected, and the service life of the motor is prolonged; through setting up the battery to low tube 3, can fully guarantee well 2's structural strength, can avoid riding in-process battery influence to ride comfortable, still make the combination of battery and frame inseparabler, improve the safeguard effect to the battery, the protection battery prolongs battery life, increases pleasing to the eye degree, and the practicality is strong.

In one embodiment, the top of the mounting cavity 41 extends toward the center of the triangular frame to make full use of the triangular frame space.

Specifically, a reduction gear mounting seat 44 is further arranged in the mounting cavity 41, the reduction gear mounting seat 44 is located between the central shaft hole 42 and the motor mounting seat 43, and a reduction gear can be mounted on the reduction gear mounting seat 44 and is in transmission connection with the chain wheel and the motor. Through setting up reduction gear mount pad 44, can install reduction gear to guarantee the sufficient moment of torsion of motor, guarantee the normal work of motor, and reduction gear sets up in five-way pipe 4, can make the structure compacter, reduces the space and occupies, guarantees to ride comfortablely, and the practicality is strong.

Specifically, protective housing mounting holes are formed in the two sides, parallel to the triangular frame, of the five-way pipe 4, openings are formed in the two sides, parallel to the triangular frame, of the mounting cavity 41, and the two protective housings can be mounted on the two sides of the five-way pipe 4 through the protective housing mounting holes and cover the openings in the two sides of the mounting cavity 41. Through setting up the protective housing mounting hole, can be at the 4 both sides mount pad protective housings of five-way pipe, mechanical structure such as motor and reduction gear in the protection installation cavity 41, increase of service life can also avoid the in-process foreign matter of riding to get into five-way pipe 4 in, guarantees the safety of riding, promotes the experience of riding, and the practicality is strong.

Specifically, a battery mounting opening 32 is formed in the middle of the lower side surface of the lower tube 3, the inner side of the battery can be inserted into the battery mounting bin 31 through the battery mounting opening 32, a bin cover matched with the battery mounting opening 32 is arranged on the outer side of the battery, and the battery is detachably mounted on the battery mounting bin 31 through the battery mounting opening 32. Through setting up battery installing port 32, convenient to detach installs the battery, simplifies the structure, improves the reliability, can also be convenient for maintain and assemble, and the practicality is strong.

Specifically, the battery installation bin 31 includes an upper installation plate 312 and a lower installation plate 311 which are respectively located on the upper and lower sides of the battery installation port 32, the top surface of the lower installation plate 311 is provided with a contact copper sheet 313 adapted to a contact spring of the battery, the lower installation plate 311 is further provided with a locking rib 314 adapted to a groove at the bottom of the battery, and the locking rib 314 can be clamped into the groove at the bottom of the battery to prevent the bottom of the battery from sliding along the top surface of the lower installation plate 311; the bottom surface of the upper mounting plate 312 is provided with a locking tongue 315 that fits into the groove of the top surface of the battery, and the locking tongue 315 can be slidably snapped into the groove of the top surface of the battery to prevent the top of the battery from sliding along the bottom surface of the upper mounting plate 312 or sliding away from the groove of the top surface of the battery to enable the battery to be detached from the battery mounting compartment 31. The contact copper sheets 313 are arranged, so that the detachable electric connection of the battery is conveniently realized, the contact effect can be ensured, and the normal work of the battery is ensured; through setting up lock muscle 314 and spring bolt 315, can realize the quick installation and the dismantlement of battery, and can guarantee that the installation is firm stable, the reinforcing is used and is experienced, and the practicality is strong.

Specifically, the lower tube 3 is provided with a start lock, which is close to the upper mounting plate 312 and is in transmission connection with the latch 315 to drive the latch 315 to be clamped into or out of a groove on the top surface of the battery; the starting lock further comprises a power switch, the power switch is electrically connected with the battery, and the starting lock is operated to control the on-off of the power switch. Through setting up the start lock, can pin the battery, avoid the battery to lose, can also close the power, reduce the battery loss, the practicality is strong.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An electric power-assisted bicycle frame comprises an upper tube, a middle tube, a lower tube, a five-way tube, a head tube and a rear fork, wherein the upper tube, the middle tube and the lower tube form a triangular frame; the rear fork comprises an upper rear fork and a lower rear fork, one end of the lower rear fork is connected with the upper rear fork, the other end of the lower rear fork is connected with the five-way pipe, and the other end of the upper rear fork is connected with the middle pipe; the method is characterized in that: an installation cavity is arranged in the five-way pipe, a middle shaft hole perpendicular to the triangular frame is arranged in the installation cavity, and the chain wheel can be rotatably installed in the middle shaft hole; the top in the mounting cavity is also provided with a motor mounting seat, and a motor can be mounted on the motor mounting seat and is in transmission connection with the chain wheel; the inside of low tube is provided with battery installation storehouse, the battery can install in the battery installation storehouse, and with the motor electricity is connected.

2. An electric power-assisted bicycle frame according to claim 1, wherein a reduction gear mounting seat is further arranged in the mounting cavity, the reduction gear mounting seat is positioned between the central shaft hole and the motor mounting seat, and a reduction gear can be mounted on the reduction gear mounting seat and is in transmission connection with the chain wheel and the motor.

3. An electric power-assisted bicycle frame as claimed in claim 2, wherein the five-way tube is provided with protective shell mounting holes parallel to two sides of the triangular frame, the mounting cavity is provided with openings parallel to two sides of the triangular frame, and the two protective shells can be mounted on two sides of the five-way tube through the protective shell mounting holes and cover the openings on two sides of the mounting cavity.

4. The electric bicycle frame of claim 1, wherein a battery mounting opening is formed in a middle portion of a lower side surface of the lower tube, the inner side of the battery is inserted into the battery mounting chamber through the battery mounting opening, a chamber cover adapted to the battery mounting opening is formed on the outer side of the battery, and the battery is detachably mounted to the battery mounting chamber through the battery mounting opening.

5. The frame for an electric power-assisted bicycle according to claim 4, wherein the battery mounting bin comprises an upper mounting plate and a lower mounting plate which are respectively positioned at the upper side and the lower side of the battery mounting opening, the top surface of the lower mounting plate is provided with a contact copper sheet which is matched with the contact spring sheet of the battery, the lower mounting plate is further provided with a locking rib which is matched with the groove at the bottom of the battery, and the locking rib can be clamped into the groove at the bottom of the battery to prevent the bottom of the battery from sliding along the top surface of the lower mounting plate; go up the mounting panel bottom surface and be provided with the adaptation the spring bolt of the recess of battery top surface, the spring bolt can slide the card and go into the recess of battery top surface, in order to prevent the battery top is followed go up the mounting panel bottom surface and slide, perhaps slide and leave the recess of battery top surface, so that the battery can be followed the battery installation storehouse is detached.

6. An electric power assisted bicycle frame as claimed in claim 5, wherein the lower tube is provided with an actuating lock adjacent to the upper mounting plate and drivingly connected to the latch tongue for driving the latch tongue into and out of the recess in the top surface of the battery; the starting lock further comprises a power switch, the power switch is electrically connected with the battery, and the starting lock is operated to control the on-off of the power switch.