Bicycle brake stroke detection device

Abstract

The utility model belongs to the technical field of bicycles, and particularly relates to a bicycle brake stroke detection device, which comprises a shell, a detection device and a controller, the rotating shaft is located in the containing cavity and connected with the shell through a bearing; the wire spool is positioned in the accommodating cavity and is fixed on the rotating shaft; the stay wire is wound on the wire spool, one end of the stay wire is fixed on the wire spool, and the other end of the stay wire extends out of the shell and is used for being connected with a brake cable of the bicycle; the angle sensor is located in the containing cavity and fixed to the rotating shaft; and the reset device is connected between the wire spool and the shell. The brake device is connected to the brake cable of the bicycle through the pull wire, when the bicycle is braked, the pull wire is pulled out along with the brake cable to drive the wire spool to rotate, the angle sensor detects the rotating angle of the wire spool, and the rotating angle can correspondingly determine the brake stroke for a user to know.

Description

Technical Field

[0001] The utility model belongs to the technical field of bicycles, and in particular relates to a bicycle brake stroke detection device. Background Art

[0002] Bicycles include traditional bicycles and electric bicycles. In terms of the braking function of bicycles, there is usually only a signal of whether the brake is on or off, and the user cannot understand the braking travel (degree or angle).

[0003] In addition, previous bicycles were unable to scientifically judge how much force to brake on different types of roads, as well as the braking time and distance, which could easily lead to problems such as bicycles slipping and falling on special road conditions. Utility Model Content

[0004] The utility model aims to provide a bicycle brake stroke detection device to solve the technical problem that the brake function of a bicycle is relatively simple and the user cannot understand the brake stroke.

[0005] In order to solve the above technical problems, the utility model provides a bicycle brake stroke detection device, the bicycle brake stroke detection device comprising:

[0006] A housing having a receiving cavity disposed therein;

[0007] A rotating shaft, the rotating shaft is located in the accommodating cavity, and the rotating shaft is connected to the housing via a bearing;

[0008] A wire winding reel, the wire winding reel is located in the accommodating cavity and fixed on the rotating shaft;

[0009] A pull wire, the pull wire is wound on the wire winding drum, one end of the pull wire is fixed on the wire winding drum, and the other end of the pull wire extends out of the housing to be connected to the brake wire of the bicycle;

[0010] An angle sensor, the angle sensor is located in the accommodating cavity, and the angle sensor is sleeved outside the rotating shaft;

[0011] A reset device is connected between the winding drum and the shell.

[0012] Optionally, in the bicycle brake stroke detection device as described above, a mounting hole is provided on the shell, and the shell is mounted on the bicycle frame through the mounting hole by a fastener.

[0013] Optionally, in the bicycle brake stroke detection device as described above, the shell includes a main body and a cover body, the accommodating cavity is located on the main body, the accommodating cavity has an open opening, and the cover body is covered on the open opening.

[0014] Optionally, in the bicycle brake stroke detection device as described above, one end of the rotating shaft is connected to the main body through one of the bearings, and the other end of the rotating shaft is connected to the cover through another of the bearings.

[0015] Optionally, in the bicycle brake stroke detection device as described above, the cover body is detachably connected to the main body.

[0016] Optionally, in the bicycle brake stroke detection device as described above, a plurality of positioning holes are arranged on the surface of the winding disk in the circumferential direction, and the axial direction of the positioning holes is consistent with the axial direction of the rotating shaft;

[0017] The bicycle brake stroke detection device also includes:

[0018] Two positioning pins, the two positioning pins are respectively inserted into the two positioning holes;

[0019] A limiting post is arranged on the side of the winding drum surface, and when the winding drum rotates, the limiting post can abut against the positioning pin.

[0020] Optionally, in the bicycle brake stroke detection device as described above, the axial direction of the limit column is perpendicular to the axial direction of the positioning pin.

[0021] Optionally, in the bicycle brake stroke detection device as described above, a reset plug hole is provided in the housing, and the reset plug hole is connected to the accommodating cavity;

[0022] The reset device adopts a torsion spring, one end of the torsion spring is inserted into one of the positioning holes, and the other end of the torsion spring is inserted into the reset insertion hole.

[0023] Optionally, in the bicycle brake stroke detection device as described above, the length direction of the reset plug hole is perpendicular to the axial direction of the positioning hole.

[0024] Optionally, in the bicycle brake stroke detection device as described above, the circumference of the winding drum is not less than 30 mm, and the pull wire is wound around the winding drum for at least 18 mm.

[0025] The positive progressive effect of the utility model is that the utility model is connected to the brake line of the bicycle through a pull wire. When the bicycle brakes, the pull wire is pulled out to drive the winding disk to rotate. The angle sensor detects the rotation angle of the winding disk. The rotation angle can correspond to determine the braking stroke for the user to understand. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The disclosure of the present invention will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:

[0027] Figure 1 A structural schematic diagram of the utility model;

[0028] Figure 2 for Figure 1 A partial schematic diagram of

[0029] Figure 3 for Figure 2 Schematic diagram from another angle;

[0030] Figure 4 for Figure 1 Exploded diagram of

[0031] Figure 5 for Figure 1 An application diagram of

[0032] Figure 6 for Figure 5 A partial enlarged view of . DETAILED DESCRIPTION

[0033] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0034] It should be noted that the following embodiments and features therein may be combined with each other if there is no conflict.

[0035] In the description of the present invention, it should be noted that directional words such as the terms "outside", "middle", "inside", "outside", etc., which indicate directions and positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0037] Reference Figures 1 to 4The embodiment of the utility model provides a bicycle brake stroke detection device, which includes a housing 1, a rotating shaft 2, a winding disc 3, a pull wire 4, an angle sensor 5 and a reset device.

[0038] The housing 1 is provided with a receiving cavity, the rotating shaft 2 is located in the receiving cavity, and the rotating shaft 2 is connected to the housing 1 via a bearing. The winding drum 3 is located in the receiving cavity and fixed on the rotating shaft 2, and the rotating shaft 2 is driven to rotate by the rotation of the winding drum 3.

[0039] The pull wire 4 is wound on the winding drum 3, one end of the pull wire 4 is fixed on the winding drum 3, and the other end of the pull wire 4 extends out of the housing 1 for connecting the brake line of the bicycle. The pulling of the pull wire 4 drives the winding drum 3 to rotate, and then drives the rotating shaft 2 to rotate.

[0040] The angle sensor 5 is located in the accommodating cavity, and the angle sensor 5 is sleeved outside the rotating shaft 2. When the winding drum 3 rotates, the angle sensor 5 can detect the rotation angle. Preferably, the angle sensor 5 is located below the winding drum 3. In specific implementation, the middle hole of the angle sensor 5 is usually a D-shaped hole, and the D-shaped hole in the middle of the angle sensor 5 can be rotated by a certain angle to realize the angle monitoring function. The connection part between the rotating shaft 2 and the angle sensor 5 also forms a D-shaped shaft structure. The rotating shaft 2 is inserted into the D-shaped hole of the angle sensor 5, thereby driving the D-shaped hole of the angle sensor 5 to rotate, thereby realizing the function of monitoring the angle.

[0041] The reset device is connected between the winding drum 3 and the housing 1. When the pull wire is pulled to drive the winding drum 3 to rotate, the reset device is stretched. When the pull wire is relaxed, the winding drum 3 can be reversed by the reset device, so that the pull wire 4 is rewound on the winding drum 3 to achieve reset.

[0042] Reference Figure 5 and Figure 6 The utility model is connected to the brake line 91 of the bicycle 9 through the pull wire 4. When the bicycle 9 brakes, the brake line 91 drives the pull wire 4 to be pulled out, driving the winding disk 3 to rotate, and the angle sensor 5 detects the rotation angle of the winding disk 3. The rotation angle can correspond to determine the braking stroke for the user to understand.

[0043] The utility model can be used in scenarios where it is necessary to detect the braking stroke. The signal output end of the angle sensor 5 of the utility model is connected to an external controller, and the rotation angle is converted into the corresponding braking stroke by the external controller. The external controller can be connected to a display to provide it to the user for viewing. The braking stroke information can also be used as the data basis for other controls, such as for braking control scenarios. When used in braking control scenarios, for example: by corresponding to different road conditions, through scientific calculations by the controller, scientific data can be provided so that the rider can scientifically control the braking force of the bicycle in response to different road conditions, thereby achieving scientific control of the braking force and braking time of the bicycle in any state, thereby effectively avoiding the phenomenon of slipping and falling of the bicycle. Other designs except for using the utility model for data collection are not the protection content of the utility model, so they will not be repeated.

[0044] In some embodiments, a mounting hole 11 is provided on the housing 1 , and the housing 1 is mounted on the bicycle frame through the mounting hole 11 by means of fasteners.

[0045] During installation, it is preferably arranged close to the brake disc so as to better connect the pull wire 4 to the brake wire of the bicycle.

[0046] In some embodiments, the housing 1 includes a main body 12 and a cover body 13 . The accommodating cavity is located on the main body 12 . The accommodating cavity has an open opening. The cover body 13 is covered on the open opening.

[0047] Preferably, the mounting hole 11 is located on the main body 12 .

[0048] In some embodiments, one end of the rotating shaft 2 is connected to the main body 12 through a bearing 21 , and the other end of the rotating shaft 2 is connected to the cover 13 through a bearing 22 .

[0049] In some embodiments, the cover 13 is detachably connected to the main body 12 to facilitate maintenance of the components in the accommodating cavity.

[0050] In some embodiments, a plurality of positioning holes 31 are arranged along the circumference of the winding reel 3 , and the axial direction of the positioning holes 31 is consistent with the axial direction of the rotating shaft 2 .

[0051] The bicycle brake stroke detection device also includes two positioning pins 6 and a limiting column 7. The two positioning pins 6 are respectively plugged into the two positioning holes 31. The limiting column 7 is arranged on the side of the winding drum 3, and when the winding drum 3 rotates, the limiting column 7 can abut the positioning pins 6.

[0052] The position of the positioning pin 6 on the positioning hole 31 can be determined according to the rotation range of the winding drum 3. One positioning pin 6 is used to limit the rotation range of the winding drum 3 when the wire 4 is pulled out, and the other positioning pin 6 is used to limit the reversal range when the winding drum 3 is reset. After the above design, the winding drum 3 will not rotate a full circle.

[0053] In some embodiments, the axial direction of the limiting column 7 is perpendicular to the axial direction of the positioning pin 6 .

[0054] like Figure 2 As shown, the axial direction of the limiting column 7 is the front-to-back direction, and the axial direction of the positioning pin 6 is the left-to-right direction.

[0055] In some embodiments, a reset plug hole 14 is provided in the housing 1 , and the reset plug hole 14 is connected to the accommodating cavity.

[0056] The reset device adopts a torsion spring, one end of which is plugged into one of the positioning holes 31 , and the other end of which is plugged into the reset plug hole 14 .

[0057] In some embodiments, the length direction of the reset plug hole 14 is perpendicular to the axial direction of the positioning hole 31 .

[0058] like Figure 2 As shown, the axial direction of the positioning hole 31 is the front-to-back direction, and the length direction of the reset plug hole 14 is the left-to-right direction.

[0059] In some embodiments, the circumference of the winding drum 3 is not less than 30 mm, and the pull wire 4 is wound around the winding drum 3 for at least 18 mm.

[0060] The travel of bicycle brakes is usually around 18 mm, so the above design can meet the requirements for the detection of brake travel.

[0061] In some embodiments, the angle sensor 5 adopts existing technology, such as RDC502 (Vertical type) sensor.

[0062] The utility model is described in detail above in conjunction with the embodiments of the drawings. A person skilled in the art can make various variations of the utility model according to the above description. Therefore, some details in the embodiments should not constitute a limitation of the utility model, and the utility model shall be protected within the scope defined by the attached claims.

Claims

1. A bicycle brake stroke detection device, characterized in that: The bicycle brake stroke detection device comprises: A housing having a receiving cavity disposed therein; A rotating shaft, the rotating shaft is located in the accommodating cavity, and the rotating shaft is connected to the housing via a bearing; A wire winding reel, the wire winding reel is located in the accommodating cavity and fixed on the rotating shaft; A pull wire, the pull wire is wound on the wire winding drum, one end of the pull wire is fixed on the wire winding drum, and the other end of the pull wire extends out of the housing to be connected to the brake wire of the bicycle; An angle sensor, the angle sensor is located in the accommodating cavity, and the angle sensor is sleeved outside the rotating shaft; A reset device is connected between the winding drum and the shell.

2. The bicycle brake stroke detection device according to claim 1, characterized in that: The shell is provided with a mounting hole, and the shell is mounted on the bicycle frame through the mounting hole by means of a fastener.

3. The bicycle brake stroke detection device according to claim 1, characterized in that: The shell comprises a main body and a cover body, the accommodating cavity is located on the main body, the accommodating cavity has an open opening, and the cover body is covered on the open opening.

4. The bicycle brake stroke detection device according to claim 3, characterized in that: One end of the rotating shaft is connected to the main body through one of the bearings, and the other end of the rotating shaft is connected to the cover through another of the bearings.

5. The bicycle brake stroke detection device according to claim 3, characterized in that: The cover body is detachably connected to the main body.

6. The bicycle brake stroke detection device according to any one of claims 1 to 5, characterized in that: A plurality of positioning holes are arranged on the surface of the winding disk in the circumferential direction, and the axial direction of the positioning holes is consistent with the axial direction of the rotating shaft; The bicycle brake stroke detection device also includes: Two positioning pins, the two positioning pins are respectively inserted into the two positioning holes; A limiting post is arranged on the side of the winding drum surface, and when the winding drum rotates, the limiting post can abut against the positioning pin.

7. The bicycle brake stroke detection device according to claim 6, characterized in that: The axial direction of the limiting column is perpendicular to the axial direction of the positioning pin.

8. The bicycle brake stroke detection device according to claim 6, characterized in that: A reset plug hole is provided in the shell, and the reset plug hole is connected to the accommodating cavity; The reset device adopts a torsion spring, one end of the torsion spring is inserted into one of the positioning holes, and the other end of the torsion spring is inserted into the reset insertion hole.

9. The bicycle brake stroke detection device according to claim 8, characterized in that: The length direction of the reset plug hole is perpendicular to the axial direction of the positioning hole.

10. The bicycle brake stroke detection device according to claim 1, characterized in that: The winding circumference of the winding drum is not less than 30 mm, and the pull wire is wound around the winding drum for at least 18 mm.

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