Adjustable electric power-assisted bicycle frame

Abstract

The utility model relates to the technical field of electric power-assisted bicycles, in particular to an adjustable electric power-assisted bicycle frame which comprises an electric power-assisted bicycle frame body, a rear wheel, a front wheel, a wheel axle and a handle. The front wheel and the rear wheel are installed on the front side and the rear side of the electric power-assisted bicycle frame respectively, a battery and a corresponding electric drive device are arranged in the middle of the electric power-assisted bicycle frame, the axle is rotatably arranged in the center of the front wheel, the two sides of the axle are sleeved with the U-shaped axle supporting frames, and the top ends of the U-shaped axle supporting frames are connected with the adjustable steering assembly. A handle is installed at the top of the adjustable steering assembly, the adjustable steering assembly is sleeved with a supporting cylinder, one side of the top of the supporting cylinder is fixed to an electric power-assisted bicycle frame, the bottom of the adjustable steering assembly is rotationally connected with the supporting cylinder in a limiting mode, and the adjustable steering assembly and the electric power-assisted bicycle frame are fixed through the supporting cylinder. And in cooperation with the connection mode between the adjustable steering assembly and the supporting cylinder, the function of riding in the normal rotation direction of the front wheel through the control handle is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric power assisted bicycle technical field, concretely is a kind of adjustable electric power assisted bicycle frame. BACKGROUND

[0002] Electric bicycle refers to the auxiliary energy storage battery on the basis of ordinary bicycle, installs the operating parts and display instrument system such as motor, controller, storage battery, steering handle brake handle and so on.

[0003] The existing patent authorization number is: CN22163332U, discloses a kind of adjustable electric power assisted bicycle frame, including bicycle frame assembly, the top of bicycle frame assembly is provided with lifting assembly, bicycle frame assembly, including support base plate, first air bag, second air bag, fixed hand cylinder, bolt, telescopic handle, adjusting hole, antiskid layer, the side of support base plate is provided with first air bag;The utility model is provided with bicycle frame assembly, and the length of telescopic handle of adjustable length is adjusted with the length of itself according to the height of different people, and the length of telescopic handle is adjusted to avoid high son in riding Time bending waist leads to waist pain. After the structure is analyzed, it is known that, when handle is adjusted, telescopic rod control adjustment mode is used, although it can be adjusted, but cannot be automatically adjusted in the process of riding, so that it is inconvenient to use adjustment;

[0004] Therefore, in view of the above problems, the present technical scheme provides an adjustable electric power assisted bicycle frame. UTILITY MODEL CONTENT

[0005] The utility model aims at providing an adjustable electric power assisted bicycle frame to solve the problems in the above background.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a kind of adjustable electric power-assisted bicycle frame, including electric power-assisted bicycle frame, rear wheel, front wheel, wheel shaft, handle;Front wheel, rear wheel are respectively installed and set in the front and rear sides of electric power-assisted bicycle frame, and battery and corresponding electric drive device are set in the middle of electric power-assisted bicycle frame, the smooth operation of electric power-assisted bicycle is realized by the cooperation between above-mentioned structure, wheel shaft rotation is set in the center of front wheel, U-shaped wheel shaft support frame is installed in the both sides of wheel shaft, U-shaped wheel shaft support frame top end is connected with adjustable steering assembly, adjustable steering assembly top is equipped with handle, adjustable steering assembly is lifted by electric drive type control, to achieve the purpose of real-time adjustment handlebar height, adjustable steering assembly outside is equipped with a support cylinder, support cylinder top side is fixed on electric power-assisted bicycle frame, and adjustable steering assembly bottom and support cylinder are limit type rotationally connected, support cylinder and electric power-assisted bicycle frame are fixed, the connection mode between adjustable steering assembly and support cylinder is cooperated, to realize the function that control handlebar rides in normal rotation direction of front wheel.

[0007] Compared with prior art, the utility model has the advantages that: by setting a group of adjustable steering shafts that are lifted by electric control inside support cylinder, the height of handlebar is adjusted in real time, U-shaped wheel shaft support frame and motor housing are fixedly connected, the detachable connection between adjustable steering shaft and nut is cooperated, and the height of handlebar is adjusted during riding without affecting the normal steering control of front wheel by lifting motor driving screw rotation and controlling the up and down movement of nut. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the adjustable electric power-assisted bicycle frame.

[0009] Figure 2 It is a top view partial structural schematic diagram of lifting motor in the adjustable electric power-assisted bicycle frame.

[0010] Figure 3 It is Figure 1 The enlarged structural schematic diagram of A in the middle.

[0011] Figure 4 It is Figure 3 The enlarged structural schematic diagram of A1 in the middle.

[0012] Figure 5 It is Figure 1 The enlarged structural schematic diagram of B in the middle.

[0013] Wherein: the electric bicycle frame 10, rear wheel 11, front wheel 12, wheel axle 13, battery 14, U-shaped wheel axle support frame 15, support cylinder 16, handle 17, adjustable steering shaft 18, lifting motor 19, motor housing 20, steering slider 21, steering slide rail 22, connecting shaft 23, screw rod 24, nut 26, pin 27, slot 28. DETAILED DESCRIPTION

[0014] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0015] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0016] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0017] The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0018] Please refer to Figures 1-5The utility model provides an adjustable electric power assisted bicycle frame, including electric power assisted bicycle frame 10, rear wheel 11, front wheel 12, wheel shaft 13, handle 17, front wheel 12, rear wheel 11 are installed respectively setting in electric power assisted bicycle frame 10 front and rear both sides, and the middle part of electric power assisted bicycle frame 10 is provided with battery 14 and corresponding electric drive device, and the smooth operation of electric power assisted bicycle is realized through the cooperation between above-mentioned structure, wheel shaft 13 rotationally arranged at the center of front wheel 12, and U type wheel shaft support frame 15 is installed on both sides of wheel shaft 13, and U type wheel shaft support frame 15 top end is connected with adjustable steering assembly, and handle 17 is installed at the top of adjustable steering assembly, and adjustable steering assembly is controlled to go up and down by electric drive, so as to realize the purpose of real -time adjustment height of handle 17, and one support cylinder 16 is sleeved on the outside of adjustable steering assembly, and support cylinder 16 top side is fixed on electric power assisted bicycle frame 10, and adjustable steering assembly bottom and support cylinder 16 are limit type rotationally connected, and the function of the normal rotation direction riding of handle 17 to front wheel 12 is realized by the fixed support cylinder 16 and electric power assisted bicycle frame 10 and the connecting mode between adjustable steering assembly and support cylinder 16.

[0019] In the embodiment of the application, the upper and lower ends of the support cylinder 16 are provided as open structures, the adjustable steering assembly includes a lead screw 24 rotationally arranged in the middle part of the support cylinder 16, a plurality of nuts 26 are threadedly connected to the lead screw 24, the nuts 26 are provided with guiding devices for limiting their rotation, the bottom end of the lead screw 24 is connected to a lifting motor 19 arranged at the bottom of the support cylinder 16 through a connecting shaft 23, an electric motor housing 20 is mounted on the outside of the lifting motor 19, the electric motor housing 20 is limit type rotationally arranged on the inner wall of the support cylinder 16, the bottom of the electric motor housing 20 is fixedly connected to the top of the U type wheel shaft support frame 15, and the lifting motor 19 is driven to rotate the connecting shaft 23, thereby driving the lead screw 24 to rotate, so as to control the nuts 26 to move up and down along the lead screw 24.

[0020] A plurality of adjustable steering shafts 18 with open bottoms are detachably mounted on the top wall of the nuts 26, the top of the adjustable steering shaft 18 is fixedly connected to the bottom middle part of the handle 17, the adjustable steering shaft 18 is sleeved on the outside of the lead screw 24 and moves axially along the lead screw 24 at the same time as the nuts 26 move, so as to realize real-time height adjustment of the handle 17.

[0021] Specific, motor housing 20 two sides symmetrical installation has two steering slider 21, steering slider 21 corresponding support cylinder 16 inner wall on the establishment has steering slide rail 22, steering slider 21 along the steering slide rail 22 inside rotation, steering slide rail 22 radian size, according to the steering handle 17 requirements, namely steering slide rail 22 radian size, decide steering slider 21 in its inside rotation arc distance, then in handle 17 control nut 26 rotation, synchronous belt drive motor housing 20 rotation, to this control steering slider 21 in steering slide rail 22 inside rotation, then use motor housing 20 bottom and U type wheel axle support frame 15 top direct solid connection, realize to the front wheel 12 steering size control.

[0022] In an example of the present application, the adjustable steering shaft 18 bottom wall on the ring equally spaced installation has a plurality of pin 27, pin 27 corresponding nut 26 on the establishment has a card slot 28, pin 27 and card slot 28 card joint, to this realization adjustable steering shaft 18 and nut 26 disassembly type connection, at the same time using pin 27 and card slot 28 card joint, keep adjustable steering shaft 18 in rotation, drive nut 26 rotation, and using the nut 26 set has the guide device, limit nut 26 rotation on the lead screw 24, to this realization nut 26 rotation, drive lead screw 24 and lift motor 19 control motor housing 20 rotation, finally realize the direction of the front wheel 12 adjustment.

[0023] The above has made detailed description to the preferred embodiment of the present application, but the present application is not limited to the above described embodiment, within the knowledge scope possessed by the ordinary skilled in the art, various changes can also be made without departing from the purpose of the present application.

Claims

1. An adjustable electric power-assisted bicycle frame, characterized in that: The invention comprises an electric power-assisted bicycle frame (10), a rear wheel (11), a front wheel (12), a wheel axle (13), and a handle (17); the front wheel (12) and the rear wheel (11) are respectively mounted on the front and rear sides of the electric power-assisted bicycle frame (10); a battery (14) and a corresponding electric drive device are arranged in the middle of the electric power-assisted bicycle frame (10); the wheel axle (13) is rotatably arranged at the center of the front wheel (12); U-shaped wheel axle support frames (15) are installed on both sides of the wheel axle (13); an adjustable steering assembly is connected to the top of the U-shaped wheel axle support frame (15); a handle (17) is installed on the top of the adjustable steering assembly; a support cylinder (16) is installed on the outer side of the adjustable steering assembly; a top side of the support cylinder (16) is fixed to the electric power-assisted bicycle frame (10); and a limit rotation connection is formed between the bottom of the adjustable steering assembly and the support cylinder (16).

2. The adjustable electric power-assisted bicycle frame according to claim 1, characterized in that: The upper and lower ends of the support tube (16) are set as open structures, and the adjustable steering assembly includes a screw (24) rotatably set in the middle of the support tube (16), a group of nuts (26) are threadedly connected to the screw (24), and a guide device for limiting its rotation is provided on the nut (26), and the bottom end of the screw (24) is connected to a lifting motor (19) set at the bottom of the support tube (16) through a connecting shaft (23), and a motor housing (20) is installed on the outside of the lifting motor (19), and the motor housing (20) is limitedly rotatably set in the inner wall of the support tube (16), and the bottom of the motor housing (20) is fixedly connected to the top of the U-shaped wheel axle support frame (15).

3. The adjustable electric power-assisted bicycle frame according to claim 2, characterized in that: A set of adjustable steering shafts (18) with bottom openings are detachably mounted on the top wall of the nut (26). The top of the adjustable steering shaft (18) is fixedly connected to the middle of the bottom of the handle (17). The adjustable steering shaft (18) is sleeved on the outside of the lead screw (24).

4. The adjustable electric power-assisted bicycle frame according to claim 3, characterized in that: Two steering slide blocks (21) are symmetrically mounted on both sides of the motor housing (20); a steering slide rail (22) is provided on the inner wall of the support cylinder (16) corresponding to the steering slide block (21); and the steering slide block (21) rotates inside the steering slide rail (22).

5. The adjustable electric power-assisted bicycle frame according to claim 4, characterized in that: A plurality of bayonet pins (27) are annularly and evenly spaced apart on the bottom wall of the adjustable steering shaft (18); a bayonet slot (28) is provided on the nut (26) corresponding to the bayonet pin (27); and the bayonet pin (27) is bayonetly connected to the bayonet slot (28).

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