CN210322111U - Power meter and bicycle - Google Patents
Power meter and bicycle Download PDFInfo
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- CN210322111U CN210322111U CN201921177830.6U CN201921177830U CN210322111U CN 210322111 U CN210322111 U CN 210322111U CN 201921177830 U CN201921177830 U CN 201921177830U CN 210322111 U CN210322111 U CN 210322111U
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- shaft body
- power meter
- controller
- strain gauge
- rotating speed
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Abstract
The utility model relates to the technical field of bicycles, and provides a power meter and a bicycle, which comprises a frame body, a shaft body pivoted on the frame body, and a controller; the first end of the shaft body is connected with a first pedal, the second end of the shaft body is connected with a second pedal, a strain gauge for acquiring torsion force applied to the shaft body is attached to the outer surface of the shaft body, and a rotating speed measurer is arranged on the shaft body; the strain gauge and the rotating speed measurer are respectively electrically connected with the controller. When a user steps on the first pedal and the second pedal, the shaft body is driven to rotate; when the shaft body rotates, the strain gauge attached to the outer surface of the shaft body can acquire the torque force of the shaft body; the rotating speed measurer positioned on the shaft body can measure the rotating speed of the shaft body, and the controller can obtain the power transmitted by the shaft body through the torque force and the rotating speed, so that the measuring device is very convenient.
Description
Technical Field
The utility model belongs to the technical field of the bicycle, more specifically say, relate to a power meter and bicycle.
Background
The bicycle is generally applied in modern life, and a user often needs to calculate the amount of exercise in the exercise process, but the existing bicycle only has the function of riding, and if the power generated by the user stepping on a pedal to drive a crank to rotate in the riding process needs to be calculated, other complex auxiliary tools need to be utilized, and the bicycle is very complex.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a power meter to solve the calculation that exists among the prior art and trample the footboard and drive the produced technical problem of power of crank rotation very complicated of in-process user.
In order to achieve the above object, the utility model adopts the following technical scheme: providing a power meter, which comprises a frame body, a shaft body pivoted on the frame body and a controller; the first end of the shaft body is connected with a first pedal, the second end of the shaft body is connected with a second pedal, a strain gauge for acquiring torsion force applied to the shaft body is attached to the outer surface of the shaft body, and a rotating speed measurer is arranged on the shaft body; the strain gauge and the rotating speed measurer are respectively electrically connected with the controller.
Furthermore, the number of the strain gauges is multiple, and the strain gauges are distributed around the circumference of the shaft body.
Further, the strain gauge is disposed in a region between the first end and the second end.
Further, the shaft body is sleeved with a protective cover, and the strain gauge is located in the protective cover.
Further, the shaft body is a hollow sleeve with a hollow cavity, and the controller is arranged in the hollow cavity.
Furthermore, a lead hole communicated with the hollow cavity is formed in the shaft body, and an electric wire of the strain gauge is electrically connected with the controller through the lead hole.
Further, the first pedal and the second pedal are respectively fixed on the shaft body through screws.
Furthermore, an inserting plate detachably and electrically connected with the controller is arranged at the opening of the hollow sleeve, and a sealing cover used for sealing the opening of the hollow sleeve is arranged at the opening of the hollow sleeve.
Furthermore, a USB interface is arranged on the plugboard; and/or an antenna for transmitting an external wireless signal to/from the controller is arranged on the patch board.
The utility model also provides a bicycle, including the wheel with the dynamometer, the wheel with the axis body transmission is connected.
The utility model provides a power meter's beneficial effect lies in: compared with the prior art, the utility model has the advantages that the user drives the shaft body to rotate when trampling the first pedal and the second pedal; when the shaft body rotates, the strain gauge attached to the outer surface of the shaft body can acquire the torque force of the shaft body; the rotating speed measurer positioned on the shaft body can measure the rotating speed of the shaft body, and the controller can obtain the power transmitted by the shaft body through the torque force and the rotating speed, so that the measuring device is very convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic perspective view illustrating an installation of a shaft body and a protective cover of a power meter according to an embodiment of the present invention;
fig. 2 is a schematic three-dimensional installation diagram of a shaft body and a strain gauge of a power meter according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a controller of a power meter according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1-a shaft body; 2-a controller; 3-a strain gauge; 4-a protective cover; 5-a plugboard; 6-an antenna; 7-USB interface.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
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 limited otherwise.
Referring to fig. 1 to fig. 3, a power meter according to the present invention will now be described. The power meter comprises a frame body (not shown), a shaft body 1 pivoted on the frame body, and a controller 2; a first pedal is connected to a first end of the shaft body 1, a second pedal is connected to a second end of the shaft body 1, a strain gauge 3 for acquiring torsion force applied to the shaft body 1 is attached to the outer surface of the shaft body 1, and a rotating speed measurer is arranged on the shaft body 1; the strain gauge 3 and the rotating speed measurer are respectively electrically connected with the controller 2.
Therefore, the shaft body 1 is driven to rotate when the user treads the first pedal and the second pedal; when the shaft body 1 rotates, the strain gauge 3 attached to the outer surface of the shaft body 1 can obtain the torque force of the shaft body 1; the rotating speed measurer positioned on the shaft body 1 can measure the rotating speed of the shaft body 1, and the controller 2 can obtain the power transmitted by the shaft body 1 through the torsion and the rotating speed, so that the measuring device is very convenient.
Alternatively, in one embodiment, the controller 2 is housed within a cylinder.
Optionally, in one embodiment, the rotational speed measurement of the tachometer is achieved by an angular velocity sensor/accelerometer.
Optionally, the strain gauge 3 is a resistive strain gauge or an optical strain gauge.
Further, referring to fig. 1 to 3, as a specific embodiment of the power meter provided by the present invention, the number of the strain gauges 3 is plural, and the plurality of strain gauges 3 are arranged around the circumference of the shaft body 1. Thus, the plurality of strain gauges 3 can sample different positions of the shaft body 1 and obtain the torque force of the shaft body 1, so that the controller 2 can obtain more accurate torque force.
Further, referring to fig. 1 to 3, as an embodiment of the power meter provided by the present invention, a strain gauge 3 is disposed in a region between the first end and the second end. In this way, the first step at the first end and the second step at the second end do not easily affect the strain gauge 3.
Further, referring to fig. 1 to 3, as a specific embodiment of the power meter of the present invention, a protective cover 4 is sleeved on the shaft body 1, and the strain gauge 3 is located in the protective cover 4. In this way, the shield cover 4 can protect the strain gauge 3.
Further, referring to fig. 1 to 3, as a specific embodiment of the power meter of the present invention, the shaft body 1 is a hollow sleeve having a hollow cavity, and the controller 2 is disposed in the hollow cavity. In this way, the controller 2 is protected by being placed inside the hollow sleeve.
Further, referring to fig. 1 to 3, as a specific embodiment of the power meter of the present invention, a lead hole communicating with the hollow cavity is formed on the shaft body 1, and the electric wire of the strain gauge 3 is electrically connected to the controller 2 through the lead hole. Therefore, the electric wire of the strain gauge 3 is electrically connected with the controller 2 through the lead hole, which is very convenient.
Further, referring to fig. 1 to 3, as a specific embodiment of the power meter of the present invention, the first pedal and the second pedal are respectively fixed on the shaft body 1 through screws. In this way, it is very easy to detach/mount the first and second pedals.
Further, please refer to fig. 1 to 3, as a specific embodiment of the power meter provided by the present invention, an insertion board 5 detachably electrically connected to the controller 2 is disposed at the opening of the hollow sleeve, and a sealing cover for sealing the opening of the hollow sleeve is disposed at the opening of the hollow sleeve. In this way, the external device can be easily connected to the controller 2 through the jack board 5.
Further, referring to fig. 1 to 3, as a specific embodiment of the power meter of the present invention, the plug board 5 is provided with a USB interface 7. Thus, an external device can be conveniently connected to the controller 2 through the USB interface 7.
Further, referring to fig. 1 to 3, as a specific embodiment of the power meter provided by the present invention, an antenna 6 for transmitting an external wireless signal to the controller 2/transmitting a signal of the controller 2 through a radio signal is disposed on the patch panel 5. In this way, external wireless signals can be transmitted to the controller 2 via the antenna 6.
Optionally, in an embodiment, the controller 2 is provided with an LED, and the patch panel 5 is provided with a display interface for controlling the LED by an external device.
Optionally, in one embodiment, the two ends of the hollow sleeve are provided with sealing plugs to protect objects in the hollow cavity, so as to prevent dust and water.
The utility model also provides a bicycle, including the wheel with the dynamometer, the wheel with the axis body transmission is connected. Therefore, by adopting the power meter, the shaft body 1 is driven to rotate when a user tramples the first pedal and the second pedal; when the shaft body 1 rotates, the strain gauge 3 attached to the outer surface of the shaft body 1 can obtain the torque force of the shaft body 1; the rotating speed measurer positioned on the shaft body 1 can measure the rotating speed of the shaft body 1, and the controller 2 can obtain the power transmitted by the shaft body 1 through the torsion and the rotating speed, so that the measuring device is very convenient.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The power meter comprises a frame body, a shaft body pivoted on the frame body and a controller; the first end of axis body is connected with first footboard, the second end of axis body is connected with second footboard, its characterized in that: a strain gauge for acquiring the torsion force applied to the shaft body is attached to the outer surface of the shaft body, and a rotating speed measurer is arranged on the shaft body; the strain gauge and the rotating speed measurer are respectively electrically connected with the controller.
2. The power meter of claim 1, wherein: the number of the strain gauges is multiple, and the strain gauges are distributed around the circumference of the shaft body.
3. The power meter of claim 1, wherein: the strain gage is disposed in a region between the first end and the second end.
4. The power meter of claim 1, wherein: the protective cover is sleeved on the shaft body, and the strain gauge is located in the protective cover.
5. The power meter of claim 1, wherein: the shaft body is a hollow sleeve with a hollow cavity, and the controller is arranged in the hollow cavity.
6. The power meter of claim 5, wherein: the shaft body is provided with a lead hole communicated with the hollow cavity, and an electric wire of the strain gauge is electrically connected with the controller through the lead hole.
7. The power meter of claim 1, wherein: the first pedal and the second pedal are respectively fixed on the shaft body through screws.
8. The power meter of claim 5, wherein: the opening of the hollow sleeve is provided with a plug board which is detachably and electrically connected with the controller, and the opening of the hollow sleeve is provided with a sealing cover which is used for sealing the opening of the hollow sleeve.
9. The power meter of claim 8, wherein: the plug board is provided with a USB interface; and/or an antenna for transmitting an external wireless signal to/from the controller is arranged on the patch board.
10. Bicycle, including the wheel, its characterized in that: comprising a power meter according to any of claims 1 to 9, said wheel being in driving connection with said shaft body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921177830.6U CN210322111U (en) | 2019-07-24 | 2019-07-24 | Power meter and bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921177830.6U CN210322111U (en) | 2019-07-24 | 2019-07-24 | Power meter and bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210322111U true CN210322111U (en) | 2020-04-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921177830.6U Active CN210322111U (en) | 2019-07-24 | 2019-07-24 | Power meter and bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210322111U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878438A (en) * | 2020-06-17 | 2020-11-03 | 思各异科技(广州)有限公司 | Automatic wind power adjusting method and device for intelligent fan |
-
2019
- 2019-07-24 CN CN201921177830.6U patent/CN210322111U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878438A (en) * | 2020-06-17 | 2020-11-03 | 思各异科技(广州)有限公司 | Automatic wind power adjusting method and device for intelligent fan |
| CN111878438B (en) * | 2020-06-17 | 2022-04-22 | 思各异科技(广州)有限公司 | Automatic wind power adjusting method and device for intelligent fan |
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