阅读说明：本技术 中置电机及安装有该中置电机的自行车 (Mid-mounted motor and bicycle with mid-mounted motor ) 是由 蒋建伟 于 2019-11-04 设计创作，主要内容包括：本发明涉及一种中置电机,具有电机本体、离合器、电机本体的输出中轴以及通过螺栓锁紧在电机本机一侧的外壳,离合器的外侧端盖上开设有安装孔,电机本体上设有固定组件,该固定组件平行于电机本体,固定组件上设有螺纹,该固定组件配合锁紧螺帽将电机本体固定在自行车车架下方。一种包含中置电机的自行车,包括车架、五通管和链轮,链轮由依次连接的链罩、五爪盘和牙盘组成。本发明的目的是克服现有技术存在的缺陷,提供一种无需单独购买助力自行车,直接通过结构简单的中置电机安装在原有自行车上,就可将自行车切换成助力自行车。(The invention relates to a middle motor which is provided with a motor body, a clutch, an output middle shaft of the motor body and a shell locked at one side of the motor body through bolts, wherein an outer side end cover of the clutch is provided with a mounting hole, the motor body is provided with a fixing component, the fixing component is parallel to the motor body, the fixing component is provided with threads, and the fixing component is matched with a lock nut to fix the motor body below a bicycle frame. A bicycle with a middle-arranged motor comprises a frame, a five-way pipe and a chain wheel, wherein the chain wheel consists of a chain cover, a five-claw disc and a chain wheel which are sequentially connected. The invention aims to overcome the defects in the prior art, and provides a power-assisted bicycle which can be switched into a power-assisted bicycle by directly installing a middle-mounted motor with a simple structure on the original bicycle without independently purchasing the power-assisted bicycle.)

1. A middle motor is provided with a motor body (1), a clutch (6), an output middle shaft (3) of the motor body (1) and a shell (2) locked at one side of the motor body (1) through bolts; the outer end cover of the clutch (6) is provided with a mounting hole (61 a); the method is characterized in that: the motor body (1) is provided with a fixing component (4), and the fixing component (4) is parallel to the motor body (1); the fixing component (4) is provided with threads, and the fixing component (4) is matched with the locking nut (5) to fix the motor body (1) below the bicycle frame.

2. The center-mounted motor according to claim 1, wherein: the fixing component (4) is a hollow cylindrical beam, and the outer diameter of the hollow cylindrical beam is the same as the inner diameter of a five-way pipe of the bicycle frame.

3. The center-mounted motor according to claim 2, wherein: the root of the hollow cylindrical beam is provided with an accommodating groove (41) matched with the peripheral shape of the five-way pipe.

4. A mid-motor according to claim 3, wherein: the inner periphery of the hollow cylindrical beam is provided with an internal thread matched with the external thread of the lock nut (5), and the inner periphery of the lock nut (5) is an internal regular hexagon (51 a).

5. A mid-motor according to claim 3, wherein: the periphery of the hollow cylindrical beam is provided with external threads matched with the internal threads of the lock nut (5), and the periphery of the lock nut (5) is in a regular hexagon shape (51 b).

6. A mid-motor as set forth in any one of claims 2 through 5, wherein: a positioning hole (11) is formed in the end face of the other side of the motor body (1) below the fixing component (4), and the positioning hole (11) is provided with a hanging piece (7).

7. The center-mounted motor according to claim 6, wherein: the hanging piece (7) is provided with a through hole (71), and the hanging piece (7) corresponding to the positioning hole (11) is also provided with a threaded hole (72).

8. The center-mounted motor according to claim 7, wherein: the lower end of the hanging piece (7) is an arc-shaped curved surface.

9. A bicycle comprising the built-in motor of claim 8, comprising a frame (00), a five-way pipe (01) and a chain wheel, wherein the chain wheel consists of a chain cover (8), a five-claw disc (9) and a chain wheel (10) which are connected in sequence; a mounting hole (91b) is formed in the position, corresponding to the mounting hole (61a), of the five-claw disc (9); the method is characterized in that: the hanging piece (7) is sleeved on a hollow cylindrical beam penetrating through the five-way pipe (01); the hanging piece (7) is fixed on the motor body (1) through a bolt; the locking nut (5) is locked with the hollow cylindrical beam through threads, and the motor body (1) is fixed below a bicycle frame; the sprocket is fixed to an outer end cover of the clutch (6) by fitting a bolt into the mounting hole (91b) and the mounting hole (61 a).

Technical Field

The invention relates to the field of moped motors, in particular to a middle motor and a bicycle provided with the middle motor.

Background

A power-assisted bicycle belongs to a bicycle, takes a battery as an auxiliary power source, and can realize a novel vehicle integrating manual riding and motor power assistance. The motor installation of moped mainly divide into and put with wheel hub two kinds, wherein put motor and connected to the frame to be connected and transmit power through chain and rear wheel, pedal is installed to the both sides of motor simultaneously, and under the condition that the motor does not have the power, it can realize through pedal that the passerby rides the manpower, and the resistance does not have the difference with normal bicycle. However, the existing middle-placed motor is fixed by locking a plurality of screws, the middle-placed motor needs to be provided with a customized frame, the bicycle and the power-assisted bicycle cannot be switched randomly through mounting and dismounting, the structure is relatively complex, and the production cost is higher. Therefore, the moped does not need to be purchased independently, and the moped can be switched into the moped by directly installing the middle motor with a simple structure on the original bicycle.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a power-assisted bicycle which can be switched into a power-assisted bicycle by directly installing a middle-mounted motor with a simple structure on the original bicycle without independently purchasing the power-assisted bicycle.

The technical scheme for realizing the purpose of the invention is as follows: a middle motor is provided with a motor body, a clutch, an output middle shaft of the motor body and a shell locked at one side of the motor body through a bolt; the outer side end cover of the clutch is provided with a mounting hole; the motor body is provided with a fixing component which is parallel to the motor body; the fixing component is provided with threads and is matched with a locking nut to fix the motor body below the bicycle frame.

Further, the fixed component is a hollow cylindrical beam, and the outer diameter of the hollow cylindrical beam is the same as the inner diameter of the five-way pipe of the bicycle frame.

Furthermore, the root of the hollow cylindrical beam is provided with an accommodating groove matched with the outer periphery of the five-way pipe.

Furthermore, the inner periphery of the hollow cylindrical beam is provided with an internal thread matched with the external thread of the lock nut, and the inner periphery of the lock nut is in an internal regular hexagon shape.

Furthermore, the periphery of the hollow cylindrical beam is provided with external threads matched with the internal threads of the lock nut, and the periphery of the lock nut is in a regular hexagon shape.

Furthermore, a positioning hole is formed in the end face of the other side of the motor body below the fixing component, and the positioning hole is provided with a hanging piece.

Furthermore, the hanging piece is provided with a through hole, and the hanging piece corresponding to the positioning hole is also provided with a threaded hole.

Further, the lower end of the hanging piece is set to be an arc-shaped curved surface.

A bicycle comprising a middle-mounted motor comprises a frame, a five-way pipe and a chain wheel, wherein the chain wheel consists of a chain cover, a five-claw disc and a chain wheel which are sequentially connected; mounting holes are formed in the positions, corresponding to the mounting holes, of the five-claw disc; the hanging piece is sleeved on the hollow cylindrical beam penetrating through the five-way pipe; the hanging piece is fixed on the motor body through a bolt; the locking nut is locked with the hollow cylindrical beam through threads, and the motor body is fixed below the bicycle frame; the chain wheel is fixed on the outer side end cover of the clutch through the bolt matched with the mounting hole and the mounting hole.

After the technical scheme is adopted, the invention has the following positive effects:

(1) the design of the built-in motor can realize the random switching and modification of the bicycle and the moped, and the built-in motor can be tightly installed below the bicycle frame under the condition of not changing the structure of the bicycle frame by locking and installing the locking nut and the fixing component penetrating through the five-way pipe, namely the hollow cylindrical beam. In addition, the accommodating groove can avoid radial swing of the middle-placed motor in the use process, which takes the five-way pipe as the circle center, the increased hanging piece further reinforces the installation strength of the middle-placed motor, and the balance is adjusted, so that the middle-placed motor is more firmly installed.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which

FIG. 1 is a perspective view of the built-in motor of the present invention;

FIG. 2 is a side view of the built-in motor of the present invention;

FIG. 3 is an exploded view of the built-in motor of the present invention;

FIG. 4 is an exploded view of example 2 of the present invention;

FIG. 5 is an exploded view of example 3 of the present invention;

FIG. 6 is an exploded view of the built-in motor of the present invention and a bicycle equipped with the built-in motor;

FIG. 7 is an exploded view of the built-in motor of the present invention and a bicycle equipped with the built-in motor;

FIG. 8 is an exploded view of example 5 of the present invention; .

The reference numbers in the drawings are as follows: the bicycle frame 00, a five-way pipe 01, a motor local 1, a shell 2, a middle shaft 3, a fixing component 4, an accommodating groove 41, a lock nut 5, an inner regular hexagon 51a, a regular hexagon 51b, a clutch 6, a mounting hole 61a, a hanger 7, a through hole 71, a threaded hole 72, a chain cover 8, five claws 9, a mounting hole 91b, a chain wheel 10, a positioning hole 11 and a base 12.

Detailed Description

(example 1)

Referring to fig. 1 and 2, the present invention has a motor body 1, a clutch 6, an output middle shaft 3 of the motor body 1, and a housing 2 locked on one side of the motor body 1 by bolts, wherein one end of the clutch 6 extends out of the motor body 1, and the internal structure of the centrally-mounted motor is the same as that of a coaxial centrally-mounted motor, and therefore, for the prior art, redundant description is omitted here. Be equipped with fixed subassembly 4 on motor body 1, fixed subassembly 4 is on a parallel with motor body 1 and sets up, and motor body 1 passes through base 12 an organic whole with fixed subassembly 4 and is connected, is equipped with the screw thread on the fixed subassembly 4, and screw-thread fit lock nut 5 on this fixed subassembly 4 fixes motor body 1 in bicycle frame below, and the mounting hole 61a has been seted up on stretching out motor body 1 outside end cover of clutch 6.

(example 2)

Referring to fig. 4, this embodiment is different from embodiment 1 in that the fixing member 4 is, more specifically, a hollow cylindrical cross member having the same outer diameter as the inner diameter of the bicycle frame bottom bracket. Be equipped with on the base 12 of hollow circular cylinder crossbeam and be equipped with the storage tank 41 that matches with five-way pipe peripheral shape, the length of hollow circular cylinder crossbeam is the same with the length of five-way pipe on the bicycle frame, the internal periphery of hollow circular cylinder crossbeam is equipped with the internal thread, lock nut 5 periphery is equipped with the external screw thread, the internal peripheral internal thread of hollow circular cylinder crossbeam and lock nut 5 periphery external screw thread phase-match, this lock nut 5 internal periphery is interior regular hexagon 51a, also can be the square, other convenient screwdrivers such as regular pentagon carry out the regular polygon of fixed operation, interior regular hexagon 51a set up and make things convenient for lock nut 5 and interior hexagonal screwdriver cooperation, lock the installation.

(example 3)

Referring to fig. 5, this embodiment is different from embodiment 1 in that the fixing member 4 is, more specifically, a hollow cylindrical cross member having the same outer diameter as the inner diameter of the bicycle frame bottom bracket. Be equipped with the storage tank 41 that matches with five-way pipe peripheral shape on the base 12 of hollow circular cylinder form crossbeam, the length of hollow circular cylinder form crossbeam > the length of five-way pipe on the bicycle frame, the periphery of hollow circular cylinder form crossbeam is equipped with the external screw thread, lock nut 5's internal periphery is equipped with the internal thread, lock nut 5's periphery is regular hexagon 51b, lock nut 5 internal thread is equipped with the external screw thread phase-match with the periphery of hollow circular cylinder form crossbeam, lock nut 5 periphery sets up to regular hexagon 51b conveniently and spanner cooperation to lock the installation.

(example 4)

Referring to fig. 3, in this embodiment, on the basis of embodiment 2, a positioning hole 11 is formed in the end surface of the other side of the motor body 1 below the hollow cylindrical beam, and the hanger 7 is provided with the positioning hole 11. The hanging piece 7 is provided with a through hole 71, and the aperture of the through hole 71 is the same as the outer diameter of the hollow cylindrical beam. The difference from example 2 is: the length of the five-way pipe on the bicycle frame is less than or equal to the sum of the length of the hollow cylindrical beam and the thickness of the hanging piece 7, the hollow cylindrical beam penetrates through the five-way pipe, the hanging piece 7 is sleeved on the hollow cylindrical beam extending outwards, a threaded hole 72 is formed in the hanging piece 7 corresponding to the position of the positioning hole 11, a bolt penetrates through the threaded hole 72 and is screwed into the positioning hole 11, the hanging piece 7 is fixed on one side end face of the motor body 1, and then the external threads on the periphery of the locking nut 5 are matched with the internal threads on the inner periphery of the hollow cylindrical beam in a locking mode and are installed. The lower end of the hanging piece 7 is set to be an arc-shaped curved surface, and allowance is guaranteed to be reserved between the lower end of the hanging piece 7 and the radial end face of the clutch 6.

(example 5)

Referring to fig. 8, in this embodiment, on the basis of embodiment 3, a positioning hole 11 is formed in the end surface of the other side of the motor body 1 below the hollow cylindrical beam, and the hanger 7 is provided with the positioning hole 11. The hanging piece 7 is provided with a through hole 71, and the aperture of the through hole 71 is the same as the outer diameter of the hollow cylindrical beam. The difference from example 3 is: the length of the hollow cylindrical beam is larger than the sum of the length of the five-way pipe on the bicycle frame and the thickness of the hanging piece 7, the hollow cylindrical beam penetrates through the five-way pipe, the hanging piece 7 is sleeved on the hollow cylindrical beam extending outwards, a threaded hole 72 is formed in the hanging piece 7 corresponding to the position of the positioning hole 11, the bolt penetrates through the threaded hole 72 and is screwed into the positioning hole 11, the hanging piece 7 is fixed on one side end face of the motor body 1, and then the internal threads of the locking nut 5 and the external threads on the periphery of the hollow cylindrical beam are locked and installed. The lower end of the hanging piece 7 is set to be an arc-shaped curved surface, and allowance is guaranteed to be reserved between the lower end of the hanging piece 7 and the radial end face of the clutch 6.

(example 6)

Referring to fig. 6 to 7, a bicycle comprising the middle motor comprises a frame 00, a five-way tube 01 and a chain wheel, wherein the five-way tube 01 is arranged on the frame 00, the chain wheel is composed of a chain cover 8, a five-claw disc 9 and a chain wheel 10 which are sequentially connected through bolts and nuts, a mounting hole 91b is formed in the position, corresponding to the mounting hole 61a, of the five-claw disc 9, a hanging piece 7 is sleeved on a hollow cylindrical beam penetrating through the five-way tube 01, the hanging piece 7 is fixed on a motor body 1 through bolts, a locking nut 5 is locked with the hollow cylindrical beam through threads, the motor body 1 is fixed below the frame of the bicycle, the chain wheel is fixed on an outer side end cover of a clutch 6 through the bolts and the mounting hole 91b and the mounting hole 61a, and two ends of a middle shaft 3 are respectively connected with a crank.

The working principle of the invention is as follows: during the installation, only need pull down the axis in the bicycle five-way pipe 01, the hollow circular cylinder crossbeam that will put on the motor in will passes five-way pipe 01, cup joint pendant 7 on the hollow circular cylinder crossbeam that stretches out, pass screw hole 72 with the bolt afterwards, precession locating hole 11, thereby fix the pendant on the terminal surface in the motor body 1 outside, lock with lock nut and hollow circular cylinder crossbeam screw-thread fit afterwards, pass the sprocket through the bolt mounting hole 91b, carry out fixed mounting in the precession mounting hole 61a, the axis that will put the motor both ends in at last and crank connection can.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.