CN213473439U

CN213473439U - Bicycle pull-cord type electronic speed variator

Info

Publication number: CN213473439U
Application number: CN202022130362.6U
Authority: CN
Inventors: 周慧锋; 霍林清
Original assignee: Zhuhai Ltwoo Controller Technology Co ltd
Current assignee: Zhuhai Blueprint Sports Technology Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-06-18
Anticipated expiration: 2030-09-24

Abstract

The utility model discloses a bicycle stay-supported electronic derailleur, include: the base is provided with a stroke groove; the screw rod is arranged in the stroke groove; the sliding block is arranged on the screw rod, the outer wall of the sliding block is connected with the stroke groove in a sliding mode, and the sliding block is connected with a front derailleur or a rear derailleur of the bicycle through a pull wire; the rotary driving piece is arranged on the base, and the output end of the rotary driving piece is connected with the screw rod; and the control panel is arranged on the base and is electrically connected with the rotary driving piece. This electronic transmission can be according to actual user's demand, through programming the control panel for the control panel can be according to the number of turns of the rotation of appointed program control rotary driving spare, and then accurately control the stroke of acting as go-between, makes this electronic transmission possible to accomplish the adaptation to different grade type bicycle, improves this electronic transmission's suitability and uniformity. In addition, this electronic transmission has simplified user's mechanical operation to a great extent, when having improved the variable speed efficiency of bicycle, has still improved the user to the variable speed of bicycle and the experience of riding.

Description

Bicycle pull-cord type electronic speed variator

Technical Field

The utility model relates to a bicycle technical field, in particular to bicycle stay-supported electronic transmission.

Background

The speed-changing bicycle is a racing bicycle, the wheels are thin and narrow, and the purpose is to reduce the weight of the bicycle body to the maximum extent, so that the riding is light and convenient and the riding speed is high. The bicycle speed changing system has the function of changing the speed of a bicycle by changing the matching of a chain and gear discs with different front and rear sizes.

The gear shifter on the hand (hold) is usually stirred through finger machinery to current variable speed bicycle, simultaneously through the mechanical action of the preceding derailleur of acting as go-between cooperation bicycle or rear derailleur to realize the variable speed function, the mode of stirring the gear shifter through finger machinery above-mentioned needs to act on the shifter that corresponds respectively through left hand or right hand and just can realize the variable speed of bicycle front wheel and rear wheel, and because can not be general with the shifter structure of preceding derailleur and rear derailleur cooperation action, lead to this kind of variable speed mode to need to use left and right hands joint work, influence the variable speed efficiency of bicycle, certain potential safety hazard has still been brought.

In addition, the above-mentioned shifting methods usually require matching the brand and model of the shifter with the brand and model of the front derailleur or the rear derailleur to realize the shifting action of the bicycle, and have poor adaptability and difficulty in ensuring the consistency of the shifting function of different types of bicycles.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a bicycle stay-supported electronic transmission, its structure is ingenious, and the variable speed is efficient, and the security performance is good, and the derailleur that can adapt to the bicycle of different models.

According to the utility model discloses bicycle stay-supported electronic derailleur, include: the base is provided with a stroke groove; the screw rod is arranged in the stroke groove; the sliding block is arranged on the screw rod, the outer wall of the sliding block is connected with the stroke groove in a sliding mode, and the sliding block is connected with a front derailleur or a rear derailleur of the bicycle through a pull wire; the rotary driving piece is arranged on the base, and the output end of the rotary driving piece is connected with the screw rod; and the control panel is arranged on the base and is electrically connected with the rotary driving piece.

According to the utility model discloses bicycle stay-supported electronic derailleur has following beneficial effect at least:

the utility model discloses a rotary driving piece drive lead screw is rotatory for lead screw axial rectilinear movement can be followed to the slider, and then the pulling is dialled the function that the chain ware was connected with the preceding chain ware of bicycle or back chain ware realization bicycle speed change, and the displacement that the slider removed along the lead screw is the stroke of acting as go-between promptly. This electronic transmission can be according to actual user's demand, through programming the control panel for the control panel can be according to the number of turns of the rotation of appointed program control rotary driving spare, and then accurately control the stroke of acting as go-between, makes this electronic transmission possible to accomplish the adaptation to different grade type bicycle, improves this electronic transmission's suitability and uniformity. In addition, this electronic transmission compares with the traditional mode that stirs the selector through finger machinery and realize the bicycle variable speed, and to a great extent has simplified user's mechanical operation, has also simplified the mechanical structure who controls whole variable speed action simultaneously, when having improved the variable speed efficiency of bicycle, has still improved the user to the variable speed of bicycle and the experience of riding.

According to the utility model discloses a some embodiments still include brake valve lever, brake valve lever is last to have a plurality of speed gear switches, speed gear switch with control panel electric connection.

According to some embodiments of the utility model, be equipped with on the control panel and be used for calculating the inductor that the lead screw rotated the number of turns, be equipped with on the lead screw with inductor complex feedback piece.

According to some embodiments of the utility model, be equipped with the battery installation position that is used for installing the battery on the base, the control panel with battery electric connection in the battery installation position.

According to some embodiments of the utility model, be equipped with the shield on the battery installation position, be equipped with elastic joint portion on the shield, be equipped with on the base with elastic joint portion complex buckle position.

According to some embodiments of the utility model, the base is the casing form, lead screw, slider, rotary driving piece, control panel all set up the inside of base.

According to some embodiments of the utility model, be equipped with on the slider and be used for fixing the bayonet socket of acting as go-between, the through-hole has been seted up to the tip of base, and act as go-between with preceding derailleur or rear derailleur connection passes detachably fixes behind the through-hole on the bayonet socket.

According to some embodiments of the invention, the stay wire is a steel wire.

According to some embodiments of the invention, the rotary drive is a motor.

According to some embodiments of the invention, the base may be fixed to the frame of the bicycle by a screw or a strap.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is an exploded view of an embodiment of the present invention;

fig. 3 is a top view of an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken at B-B of FIG. 3;

fig. 6 is a schematic structural view of a control handle according to an embodiment of the present invention.

Wherein: the base 100, the stroke groove 110, the battery mounting position 120, the fastening position 130, the through hole 140, the battery 150, the bayonet 310, the screw rod 200, the slider 300, the rotary driving member 400, the control panel 500, the sensor 600, the feedback block 700, the dust cover 800, the elastic clamping part 810 and the control handle 900.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the present number, and the terms greater than, less than, within, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, 2, 3, 4 and 5, the present invention discloses a stay-supported electronic derailleur for bicycles, which comprises a base 100, a lead screw 200, a slider 300, a rotary driving member 400 and a control panel 500.

Wherein, the base 100 is provided with a stroke slot 110, and the screw rod 200 is arranged in the stroke slot 110; the slider 300 is disposed on the lead screw 200, and the outer wall of the slider 300 is slidably coupled to the stroke groove 110, thereby limiting the rotational degree of freedom of the slider 300, and the slider 300 is coupled to a front derailleur or a rear derailleur of a bicycle through a wire.

Specifically, the stay wire can be a steel wire, so that the enough strength and the tensity of the stay wire are ensured; the rotary driving member 400 is installed on the base 100, the rotary driving member 400 may be a driving member such as a motor or a motor, and an output end of the rotary driving member 400 is connected to the lead screw 200, that is, the rotary driving member 400 may drive the lead screw 200 to rotate around itself, so that the slider 300 and the wires disposed on the slider 300 move; the control board 500 is disposed on the base 100 and electrically connected to the rotary driving member 400, and the control board 500 precisely controls the number of turns of the rotary driving member 400 through a preset program thereon, thereby achieving the function of precisely controlling the stroke of the slider 300 and the pull wire.

In some embodiments of the utility model, referring to fig. 6, the user is when using this electronic transmission, for the operation of the whole electronic transmission of convenient user control, this electronic transmission still includes brake valve lever 900, has a plurality of speed gear switches on the brake valve lever 900, speed gear switch and control panel 500 electric connection.

In this embodiment, the control handle 900 is provided with a circuit board electrically connected to the control board 500, the sensor of the speed gear switch is correspondingly disposed on the circuit board, the circuit board of the control handle 900 is provided with an infrared signal diode, that is, the circuit board of the control handle 900 is connected to the control board 500 on the base 100 through an infrared signal, when the user actually uses the device, the base 100 can be fixed on the frame of the bicycle through a screw or a band, the control handle 900 is separated from the base 100, the control handle 900 can be installed on the left handle or the right handle of the bicycle for the user to remotely control, after the user presses the corresponding speed gear switch, the infrared signal diode emits an infrared signal, the control board 500 on the base 100 receives and decodes the infrared signal, the control board 500 obtains a corresponding decoding instruction to control the rotation of the rotary driving member 400, and further controls the screw rod 200 to rotate so that the slider 300 drives the pulling wire, after the pull wire acts, the front derailleur or the rear derailleur connected with the pull wire is adjusted, so that the position of a chain of the bicycle acting on a chain wheel is changed, and the function of speed change is realized.

Of course, in another embodiment, the control handle 900 can be connected to the control board 500 via bluetooth, so as to remotely control the travel of the pull wire, which is convenient to operate and can realize the function of speed change by a relatively simple mechanical structure.

It should be understood that, in an embodiment, for convenience, the electronic transmission can simultaneously control the front derailleur and the rear derailleur, two rotary driving element 400, two screw rods 200 and two sliding blocks 300 can be provided, two stroke slots 110 can be provided, of course, only one stroke slot 110 can be provided, as long as the rotation freedom of the sliding block 300 in the stroke slot 110 is limited, it can be understood that a group of transmission structures formed by control pull wires are formed by a single rotary driving element 400, a single screw rod 200 and a single sliding block 300, the two groups of transmission structures are mutually independent and are respectively connected with the front derailleur and the rear derailleur through two pull wires and controlled by the same control board 500, and through the arrangement, the electronic transmission can simultaneously realize the speed changing function of the front derailleur and the rear derailleur, and reduce corresponding design cost.

It can be understood that the utility model discloses a rotary driving piece 400 drive lead screw 200 is rotatory for slider 300 can be followed lead screw 200 axial rectilinear movement, and then the function that the pulling that pulling and the preceding derailleur of bicycle or rear derailleur are connected realized the bicycle variable speed, and the displacement that slider 300 removed along lead screw 200 is the stroke of pulling the line.

Moreover, this electronic transmission can be according to actual user's demand, through programming control panel 500 for control panel 500 can be according to the number of turns of appointed program control rotary driving piece 400, and then accurately control the stroke of acting as go-between, makes this electronic transmission accomplish the adaptation to different grade type bicycles, improves this electronic transmission's suitability and uniformity.

In addition, this electronic transmission compares with the traditional mode that stirs the selector through finger machinery and realize the bicycle variable speed, and to a great extent has simplified user's mechanical operation, has also simplified the mechanical structure who controls whole variable speed action simultaneously, when having improved the variable speed efficiency of bicycle, has still improved the user to the variable speed of bicycle and the experience of riding.

In some embodiments of the present invention, referring to fig. 2 again, in order to make the control board 500 more accurately control the rotation of the rotary driving member 400 to start and stop, the sensor 600 for calculating the rotation number of the lead screw 200 is disposed on the control board 500, and the feedback block 700 matched with the sensor 600 is disposed on the lead screw 200.

Specifically, feedback block 700 is magnet, inductor 600 is hall sensor, the rotation number of turns of screw 200 can accurately be calculated in magnet and hall sensor's response cooperation, it is easy to understand, the rotation number of turns of screw 200 is the stroke of acting as go-between, and the stroke of acting as go-between is the speed gear of the preceding derailleur of bicycle or the rear derailleur, after inductor 600 calculated that screw 200 has rotated predetermined number of turns, inductor 600 is about to the signal and transmits for rotary driving part 400 through control panel 500, make rotary driving part 400 stop the operation, the speed gear of preceding derailleur or rear derailleur is accomplished the regulation promptly, and is quick and accurate, realize the closed-loop control to whole variable speed process through inductor 600.

In some embodiments of the utility model, refer to fig. 2 and fig. 4 again, be equipped with the battery installation position 120 that is used for installing the battery on the base 100, battery 150 electric connection in control panel 500 and the battery installation position 120, in this embodiment, be equipped with the shield 800 on the battery installation position 120, be equipped with elastic joint portion 810 on the shield 800, be equipped with on the base 100 with elastic joint portion 810 complex buckle position 130, the maintenance and the change of battery 150 have been made things convenient for through setting up the shield 800, battery 150 has also been avoided suffering the corruption of external impurity, improve whole electronic transmission's structural security and stability.

In addition, in this embodiment, a charging interface is provided on the battery installation site 120, and the charging interface is preferably a TYPE-C interface, which is adapted to and conforms to the charging connector and charging wire TYPEs on the market. Of course, in an embodiment, the battery installation site 120 may not be provided with a charging interface, the battery 150 uses a disposable lithium battery, accordingly, the charging procedure is eliminated, and the function of storing electricity is achieved only by taking out and replacing the battery 150, so as to meet the requirement of such a market.

In some embodiments of the present invention, referring to fig. 4, in order to prevent the electronic transmission from contacting with the parts on the base 100 by impurities such as external oil smoke, dust, etc. during the use process, and affecting the normal use of the transmission, the base 100 is in the shape of a shell, and the lead screw 200, the slider 300, the rotary driving member 400, and the control board 500 are all disposed inside the base 100.

In addition, in some embodiments of the present invention, the sliding block 300 is provided with a bayonet 310 for fixing the pull wire, the through hole 140 is provided at the end of the base 100, the pull wire connected to the front derailleur or the rear derailleur passes through the through hole 140 and then is detachably fixed on the bayonet 310, which facilitates the connection of the front derailleur or the rear derailleur of the bicycle to the sliding block 300, and also facilitates the maintenance and the disassembly of the electronic transmission for the user.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. Bicycle pull-cord type electronic derailleur, characterized by comprising:

the base is provided with a stroke groove;

the screw rod is arranged in the stroke groove;

the sliding block is arranged on the screw rod, the outer wall of the sliding block is connected with the stroke groove in a sliding mode, and the sliding block is connected with a front derailleur or a rear derailleur of the bicycle through a pull wire;

the rotary driving piece is arranged on the base, and the output end of the rotary driving piece is connected with the screw rod;

and the control panel is arranged on the base and is electrically connected with the rotary driving piece.

2. The pull-cord type electronic derailleur according to claim 1, further comprising a control handle having a plurality of speed position switches thereon, the speed position switches being electrically connected to the control plate.

3. The electronic pull-cord transmission for bicycles of claim 1, wherein the control panel is provided with an inductor for calculating the number of turns of the lead screw, and the lead screw is provided with a feedback block cooperating with the inductor.

4. The electronic derailleur according to claim 1, wherein the base has a battery receiving portion for receiving a battery, and the control plate is electrically connected to the battery received in the battery receiving portion.

5. The electronic derailleur according to claim 4, wherein a dust cover is provided on the battery mounting location, an elastic clip portion is provided on the dust cover, and a clip location is provided on the base for engaging with the elastic clip portion.

6. The pull-cord type electronic derailleur according to any one of claims 1 to 5, wherein the base is in the form of a housing, and the lead screw, the slider, the rotary drive member, and the control plate are disposed inside the base.

7. The electronic derailleur according to any one of claims 1 to 5, wherein the slider has a bayonet for fixing the pull wire, the base has a through hole at an end thereof, and the pull wire connected to the front derailleur or the rear derailleur is detachably fixed to the bayonet after passing through the through hole.

8. The electronic derailleur according to any one of claims 1-5, wherein the pull wire is a steel wire.

9. The derailleur according to any one of claims 1-5, wherein the rotary drive member is a motor.

10. The electronic derailleur according to any one of claims 1 to 5, wherein the base is fixed to the frame of the bicycle by a screw or a cable tie.