Pedal power measuring device

Abstract

The utility model relates to the technical field of power measurement, in particular to a pedal power measuring device which comprises a strain shaft, a chip and a strain measuring device. The strain shaft is of a cylindrical structure, and a connecting structure is arranged at one end of the strain shaft and used for being connected with external equipment. The strain measuring device is fixedly arranged at one end, close to the connecting structure, of the strain shaft, when the strain shaft is subjected to strain, the strain measuring device measures the dependent variable of the strain shaft and electrically transmits the dependent variable to the chip, the chip converts output power and power data, and the output power and the power data are output through the chip. And the data is transmitted to a user terminal in a wireless transmission mode. Through the cooperation of the strain shaft and the strain measuring device, the strain generated by the pedal can be accurately captured, and the strain is instantly converted into force and power data and then transmitted to the user terminal in a wireless mode, so that the real-time performance and convenience of data acquisition are improved.

Description

Technical Field

[0001] This application relates to the field of power measurement technology, and in particular to a foot pedal power measurement device. Background Technology

[0002] A pedal power meter is an instrument installed on bicycle pedals that calculates the power generated by the cyclist by measuring the pressure applied to the pedals. This device has wide applications in cycling training, fitness, and scientific research, helping cyclists accurately understand their pedaling output and thus optimize training effectiveness and cycling performance. The technical principle of the pedal power meter is based on strain gauge technology, which measures the natural deformation of the metal material under pedaling force to calculate the output force. Simultaneously, combined with rotational speed information, it ultimately obtains real-time power data. The unit of power is watt (W), which represents the rate of energy conversion.

[0003] However, existing pedal power measuring devices have drawbacks such as high processing difficulty, high production cost, and limited measurement direction. Utility Model Content

[0004] The purpose of this application is to provide a pedal power measuring device to solve at least one of the technical problems existing in the prior art.

[0005] To solve the above-mentioned technical problems, this application provides a foot pedal power measuring device, including a strain shaft, a chip, and a strain measuring device;

[0006] The strain shaft is a cylindrical structure with a connecting structure at one end for connecting to external equipment.

[0007] The strain measuring device is fixedly installed on one end of the strain shaft near the connecting structure. When the strain shaft is strained, the strain measuring device measures the strain of the strain shaft and transmits it electrically to the chip. The chip then calculates the output force and power data and transmits the data to the user terminal wirelessly.

[0008] Furthermore, it also includes batteries;

[0009] The battery is electrically connected to the chip and the strain measuring device and provides power to the chip and the strain measuring device.

[0010] Furthermore, it also includes the outer shell;

[0011] The outer shell is disposed on the strain axis and encloses a portion of the strain axis.

[0012] The battery, the chip, and the strain measuring device are housed within the outer casing.

[0013] Furthermore, it also includes a charging device;

[0014] The charging device is disposed within the housing and is electrically connected to the battery;

[0015] The charging device is provided with a charging port, which is exposed on the outer shell through a through hole and is used to connect to an external power source.

[0016] Furthermore, the charging port is a magnetic contact charging port.

[0017] Furthermore, the outer casing includes an upper top cover and a lower enclosure;

[0018] The upper cover and the lower package are fixedly connected by fasteners.

[0019] Furthermore, it also includes thimbles;

[0020] The tray is disposed inside the outer casing and has a connection hole thereon;

[0021] Fasteners securely connect the support plate to the outer casing through the connecting holes;

[0022] The chip is mounted on the tray.

[0023] Furthermore, the chip is ring-shaped and has fixing holes, through which fasteners fix the chip to the outer casing.

[0024] Furthermore, the chip also includes positioning slots;

[0025] The position of the positioning groove is opposite to the position of the connecting hole, and the fastener that fixes the support piece to the outer shell is engaged with the positioning groove.

[0026] Furthermore, the strain measuring device comprises multiple strain gauges, which are arranged in a circular array at the same horizontal height and attached to the outer peripheral curved surface of the strain axis.

[0027] By adopting the above technical solution, this application has the following beneficial effects:

[0028] (1) By combining the strain axis with the strain measurement device, the strain generated by the foot pedal can be accurately captured and converted into force and power data in real time, and then transmitted to the user terminal wirelessly, which improves the real-time and convenience of data acquisition.

[0029] (2) The built-in battery, chip and strain measurement device are housed in the outer casing, forming a compact and fully functional measurement unit that is easy to install and use. In addition, the modular design makes it easy to maintain and replace each component.

[0030] (3) Equipped with a charging device and a magnetic contact charging port, the charging process is simplified and the user experience is improved. The magnetic charging design also enhances the durability and stability of the charging interface and extends the service life of the device.

[0031] (4) The outer shell is fixedly connected by the upper cover and the lower enclosure with fasteners, which enhances the overall stability and protection, and effectively protects the internal electronic components from interference and damage from the external environment.

[0032] (5) The combination of the support plate and fasteners enables stable installation and precise positioning of the chip. The ring-shaped chip design and its fixing holes and positioning grooves not only facilitate installation but also ensure a firm connection of the chip.

[0033] (6) Multiple strain gauges are attached to the outer circumferential curved surface of the strain axis in a ring array at the same horizontal height, which can capture strain information more comprehensively and improve the accuracy and reliability of the measurement. In addition, the curved surface attachment method does not require processing a part of the strain axis into a plane before attaching the strain gauges to the plane. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 A schematic diagram of the foot pedal power measuring device from a head-up view.

[0036] Figure 2 A three-dimensional structural diagram of a foot pedal power measuring device;

[0037] Figure 3 A top-view structural diagram of the foot pedal power measuring device;

[0038] Figure 4 A schematic diagram of the foot pedal power measuring device from a head-up view after removing the outer casing;

[0039] Figure 5 A schematic diagram of the three-dimensional structure of the pedal power measuring device after removing the outer casing;

[0040] Figure 6A top-down view of the foot pedal power measuring device after removing the outer casing;

[0041] Figure 7 A top-down view of the structure of the chip and its support.

[0042] Figure 8 This is a schematic diagram of the chip's structure from a top-down view.

[0043] Figure 9 A schematic diagram of the structure of the support plate from a top-down view;

[0044] Figure 10 A schematic diagram of a structure in which strain gauges are mounted on the strain axis.

[0045] Figure label:

[0046] 1-Strain axis; 2-Chip; 3-Strain measurement device; 4-Connection structure; 5-Battery; 6-Outer shell; 7-Charging device; 8-Charging port; 9-Through hole; 10-Top cover; 11-Lower enclosure; 12-Support plate; 13-Connecting hole; 14-Fixing hole; 15-Positioning groove; 16-Strain gauge; 17-Fastener. Detailed Implementation

[0047] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0048] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0050] It should also be noted that the specific embodiments or implementation methods described below are a series of optimized settings listed in this application to further explain the specific application content, and these settings can be combined or used in conjunction with each other.

[0051] The present application will be further explained below with reference to specific implementation methods.

[0052] like Figure 4 As shown, this embodiment provides a foot pedal power measuring device, including a strain shaft, a chip, and a strain measuring device;

[0053] The strain shaft is a cylindrical structure with a connecting structure at one end for connecting to external equipment.

[0054] The strain measuring device is fixedly installed on one end of the strain shaft near the connecting structure. When the strain shaft is strained, the strain measuring device measures the strain of the strain shaft and transmits it electrically to the chip. The chip then calculates the output force and power data and transmits the data to the user terminal wirelessly.

[0055] When the pedal power measuring device disclosed in this application is working, the strain measuring device collects the deformation in each direction of the strain axis, the signal is amplified to improve accuracy, and transmitted to the receiving end through a wireless Bluetooth chip; the power is divided into left and right sides, working together.

[0056] like Figure 4 As shown, as a further embodiment of this application, a battery is also included;

[0057] The battery is electrically connected to the chip and the strain measuring device and provides power to the chip and the strain measuring device.

[0058] In a preferred embodiment of this application, the battery is an embedded lithium battery.

[0059] like Figure 4 As shown, this embodiment provides a foot pedal power measuring device, including a strain shaft 1, a chip 2, and a strain measuring device 3;

[0060] The strain shaft 1 is a cylindrical structure, and one end of it is provided with a connecting structure 4 for connecting to external equipment.

[0061] The strain measuring device 3 is fixedly installed on the strain shaft 1 near one end of the connecting structure 4. When the strain shaft 1 is strained, the strain measuring device 3 measures the strain of the strain shaft 1 and transmits it electrically to the chip 2. The chip 2 then calculates the output force and power data and transmits the data to the user terminal wirelessly.

[0062] When the pedal power measuring device disclosed in this application is working, the strain measuring device 3 collects the deformation in each direction of the strain axis 1, the signal is amplified to improve accuracy, and transmitted to the receiving end through the wireless Bluetooth chip 2; the power measuring device has two sides, left and right, which work together.

[0063] like Figure 4 As shown, as a further embodiment of this application, a battery 5 is also included;

[0064] The battery 5 is electrically connected to the chip 2 and the strain measuring device 3 and provides power to the chip 2 and the strain measuring device 3.

[0065] In a preferred embodiment of this application, the battery 5 is an embedded lithium battery.

[0066] like Figure 1-3 As shown, as a further embodiment of this application, an outer casing 6 is also included;

[0067] The outer shell 6 is disposed on the strain shaft 1 and wraps a portion of the strain shaft 1.

[0068] The battery 5, the chip 2, and the strain measuring device 3 are disposed inside the housing 6.

[0069] like Figure 2 , 4 As shown, as a further embodiment of this application, a charging device 7 is also included;

[0070] The charging device 7 is disposed inside the outer casing 6 and is electrically connected to the battery 5.

[0071] The charging device 7 is provided with a charging port 8, which is exposed on the outer shell 6 through a through hole 9 and is used to connect to an external power source.

[0072] like Figure 2 As shown, as a further embodiment of this application, the charging port 8 is a magnetic contact charging port.

[0073] like Figure 2 As shown, as a further embodiment of this application, the outer shell 6 includes an upper top cover 10 and a lower wrapping body 11;

[0074] The upper cover 10 and the lower package 11 are fixedly connected by fasteners 17.

[0075] like Figure 5 , 6 As shown in Figures 7 and 9, as a further embodiment of this application, a tray 12 is also included;

[0076] The tray 12 is disposed inside the outer shell 6 and has a connection hole 13 thereon;

[0077] Fastener 17 securely connects the support plate 12 to the outer casing 6 through the connection hole 13;

[0078] The chip 2 is disposed on the tray 12.

[0079] like Figure 8 As shown, as a further embodiment of this application, the chip 2 is ring-shaped and has a fixing hole 14. The fastener 17 fixes the chip 2 to the outer shell 6 through the fixing hole 14.

[0080] like Figure 8 As shown, as a further embodiment of this application, the chip 2 also includes a positioning groove 15;

[0081] The position of the positioning groove 15 is opposite to the position of the connecting hole 13, and the fastener 17 that fixes the support plate 12 to the outer shell 6 is engaged with the positioning groove 15.

[0082] In addition, the positioning groove 15 also serves to avoid fasteners 17, preventing fasteners 17 from affecting chip 2 during installation.

[0083] In a preferred embodiment of this application, the fastener 17 passing through the connection hole 13 is the same fastener 17 that connects the upper cover 10 and the lower cover 11. That is, the fastener 17 passes through the connection hole 13 and securely connects the upper cover 10 and the lower cover 11.

[0084] like Figure 10 As shown, as a further embodiment of this application, the strain measuring device 3 consists of a plurality of strain gauges 16, which are attached to the outer peripheral curved surface of the strain shaft 1 in a circular array at the same horizontal height.

[0085] In a preferred embodiment of this application, four strain gauges 16 are provided, and they are arranged at 90-degree intervals on the same horizontal plane. When the pedal power measuring device disclosed in this application is working, the four strain gauges 16 collect the deformation in any direction of the four curved surfaces, calculate the output force, and combine it with the rotational speed information to finally obtain real-time power data.

[0086] By adopting the above technical solution, this application has the following beneficial effects:

[0087] (1) The strain measurement device 3 accurately collects the deformation data of strain shaft 1, and the force and power data are sent to the user terminal in real time using wireless transmission technology, which improves the real-time performance and convenience of data acquisition.

[0088] (2) The design includes a complete structure comprising battery 5, housing 6 and charging device 7, which not only ensures the stable installation of internal components, but also provides a convenient charging interface, enhancing the overall practicality and durability of the device.

[0089] (3) The embedded lithium battery 5 not only saves space, but also ensures long-term and stable working power. Meanwhile, the charging port 8 adopts a magnetic design, which improves the convenience and safety of charging.

[0090] (4) By using a ring array of multiple strain gauges 16, the deformation of strain axis 1 in all directions can be fully captured, which improves the accuracy of force measurement and the reliability of power calculation.

[0091] (5) By rationally arranging the battery 5, chip 2 and strain measurement device 3, the battery 5, chip 2 and strain measurement device 3 are integrated into the housing 6, making the entire power meter structure compact and suitable for installation on foot pedal equipment without taking up extra space.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A foot pedal power measuring device, characterized in that, Includes strain shafts, chips, and strain measurement devices; The strain shaft is a cylindrical structure with a connecting structure at one end for connecting to external equipment. The strain measuring device is fixedly installed on one end of the strain shaft near the connecting structure. When the strain shaft is strained, the strain measuring device measures the strain of the strain shaft and transmits it electrically to the chip. The chip then calculates the output force and power data and transmits the data to the user terminal wirelessly.

2. The foot pedal power measuring device according to claim 1, characterized in that, It also includes batteries; The battery is electrically connected to the chip and the strain measuring device and provides power to the chip and the strain measuring device.

3. The foot pedal power measuring device according to claim 2, characterized in that, It also includes the outer casing; The outer shell is disposed on the strain axis and encloses a portion of the strain axis. The battery, the chip, and the strain measuring device are housed within the outer casing.

4. The foot pedal power measuring device according to claim 3, characterized in that, It also includes a charging device; The charging device is disposed within the housing and is electrically connected to the battery; The charging device is provided with a charging port, which is exposed on the outer shell through a through hole and is used to connect to an external power source.

5. The foot pedal power measuring device according to claim 4, characterized in that, The charging port is a magnetic contact charging port.

6. The foot pedal power measuring device according to claim 3, characterized in that, The outer casing includes an upper top cover and a lower enclosure; The upper cover and the lower package are fixedly connected by fasteners.

7. The foot pedal power measuring device according to claim 3, characterized in that, It also includes the tray; The tray is disposed inside the outer casing and has a connection hole thereon; Fasteners securely connect the support plate to the outer casing through the connecting holes; The chip is mounted on the tray.

8. The foot pedal power measuring device according to claim 7, characterized in that, The chip is ring-shaped and has fixing holes. Fasteners are used to fix the chip to the outer casing through the fixing holes.

9. The foot pedal power measuring device according to claim 7, characterized in that, The chip also includes a positioning groove; The position of the positioning groove is opposite to the position of the connecting hole, and the fastener that fixes the support piece to the outer shell is engaged with the positioning groove.

10. The foot pedal power measuring device according to claim 1, characterized in that, The strain measuring device consists of multiple strain gauges, which are arranged in a circular array at the same horizontal height and attached to the outer circumferential curved surface of the strain axis.

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