CN210159161U

CN210159161U - Intelligent exercise wheel with heart rate measuring function

Info

Publication number: CN210159161U
Application number: CN201920452247.5U
Authority: CN
Inventors: 刘文晖; 陈飞; 唐奇云
Original assignee: Shenzhen Qili Electronics Co Ltd
Current assignee: Shenzhen Qili Electronics Co Ltd
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2020-03-20
Anticipated expiration: 2029-04-04

Abstract

The utility model discloses an intelligent exercise wheel with heart rate measuring function, which comprises a roller, a supporting shaft, two handles and a control circuit, wherein the control circuit comprises a circuit board, and heart rate measuring electrodes are arranged on the handles; the wheel hub of the roller is loosely sleeved in the middle of the supporting shaft, the circuit board comprises two metal elastic sheets, and the two metal elastic sheets are respectively and electrically connected with the circuit on the circuit board; the inner end of the handle comprises an axial bearing hole, and the end part of the support shaft is inserted into the bearing hole of the handle; the conductive screw penetrates through the heart rate measuring electrode, the handle and the supporting shaft and abuts against the metal elastic sheet, and the heart rate measuring electrode is electrically connected with the circuit board. The utility model discloses when dismantling or assembling, as long as loosen or screw up the screw, do not need the dismouting circuit, the intelligent exercise wheel dismouting of being convenient for and maintenance.

Description

Intelligent exercise wheel with heart rate measuring function

[ technical field ]

The utility model relates to an intelligence exercise wheel especially relates to an intelligence exercise wheel with rhythm of heart measurement function.

[ background art ]

The fat people are gradually increased due to the abundance of substances and the pressure of work and life, the belly is the part where the fat of the human body is most easily deposited, and the beer belly and the belly both affect the health and the beauty. The abdomen building wheel is a small-sized pusher capable of exercising muscles and joints and reducing weight, has simple structure, small and exquisite appearance, firmness, durability and convenient use, and is a good choice for room body building. The abdomen building wheel is mainly used for exercising the body parts such as the abdomen, the waist, the hip, the arms and the like, the required field is simple during exercise, and the abdomen building wheel is convenient to use and is a sports tool suitable for people of all ages.

The utility model with the patent number of CN201520387738.8 discloses an intelligent exercise wheel, which comprises an intelligent exercise wheel body, intelligent terminal equipment and a network server, wherein the intelligent terminal equipment and the network server establish wireless communication with the body; the speed change device amplifies the rotation speed of the roller, converts mechanical energy into electric energy through the power generation device, rectifies the electric energy through the control circuit board and stores the electric energy in the battery module, and otherwise, controls the rotation speed of the roller; still contain fast sensing and counting circuit of wheel, handle pressure sensor and rhythm of the heart or electrocardio sensor in the intelligence exercise wheel body for measure user's use posture, motion intensity. The various sensor data of user's when using intelligent exercise wheel can be uploaded to the smart machine, and the software of operation in the smart machine can be handled relevant data and realize timing, count and carry out automatic guidance suggestion to the user, or pass to the server end with data through the internet.

The utility model discloses a pressure sensor and rhythm of the heart or electrocardio sensor on the wheel handle are good for to intelligence need pass through the line connection with control circuit board, need dismantle or interconnecting link during the dismouting, and the assembly is more troublesome with the maintenance.

[ contents of utility model ]

The to-be-solved technical problem of the utility model is to provide an intelligence exercise wheel convenient to dismouting.

In order to solve the technical problem, the utility model adopts the technical scheme that the intelligent exercise wheel with the heart rate measuring function comprises a roller wheel, a supporting shaft, two handles and a control circuit, wherein the control circuit comprises a circuit board, a heart rate measuring electrode is arranged on each handle, and the heart rate measuring electrode is electrically connected with the circuit board arranged in the hollow supporting shaft; the wheel hub of the roller is loosely sleeved in the middle of the supporting shaft, the circuit board comprises two metal elastic sheets, and the two metal elastic sheets are respectively and electrically connected with the circuit on the circuit board; the inner end of the handle comprises an axial bearing hole, and the end part of the support shaft is inserted into the bearing hole of the handle; the conductive screw penetrates through the heart rate measuring electrode, the handle and the supporting shaft and abuts against the metal elastic sheet, and the heart rate measuring electrode is electrically connected with the circuit board.

In the intelligent exercise wheel, the heart rate measuring electrode is a conductive rubber sleeve, and the conductive rubber sleeve is sleeved outside the handle; the circuit board comprises two sub circuit boards which are respectively fixed at two ends of an inner hole of the support shaft, and the two sub circuit boards are electrically connected with the wire connector through a circuit; each sub circuit board comprises one metal elastic sheet, and the metal elastic sheet is electrically connected with the circuit on the sub circuit board; the conductive screw penetrates through the screw hole of the conductive rubber sleeve, the threaded hole of the handle and the screw hole of the supporting shaft and abuts against the metal elastic sheet, and therefore the conductive rubber sleeve is electrically connected with the sub circuit board.

According to the intelligent abdominal exercise wheel, the supporting shaft comprises the sleeve and the inner core, the inner core is installed in the inner hole of the sleeve, and the end part of the sleeve is inserted into the bearing hole of the handle; the inner hole of the inner core comprises two supporting seats, and the two sub circuit boards are respectively fixed on the supporting seats at two ends of the inner hole of the inner core; the side of the inner core facing the support seat comprises radial openings for operating the two sub-circuit boards.

The intelligent abdomen exercise wheel comprises a torsion spring, the roller comprises two half wheels which are arranged on the left and the right, and the torsion spring is arranged in a cavity between the two half wheels in the roller; the first supporting leg of the torsional spring is fixed on the supporting shaft, and the second supporting leg of the torsional spring is fixed inside the wheel rim of the roller.

In the torsion spring mounting structure, the torsion spring is a duplex torsion spring, the duplex torsion spring comprises two first support legs and two second support legs, the two second support legs are positioned in the middle of the duplex torsion spring and connected together, and the two first support legs are positioned on two sides of the duplex torsion spring; the middle part of the support shaft comprises two radial holes, and the first leg of the duplex torsion spring is inserted into the radial holes of the support shaft; the combined surface of the left half wheel rim and the right half wheel rim comprises a radial clamping groove, and the second supporting leg of the duplex torsion spring is clamped in the radial clamping groove.

In the intelligent exercise wheel, the control circuit comprises an angle measuring circuit, the angle measuring circuit comprises an electromagnetic sensor and an annular permanent magnetic disk, and the permanent magnetic disk comprises a plurality of magnetic poles; the electromagnetic sensor is arranged on the circuit board and is electrically connected with the circuit of the circuit board; the annular permanent magnetic disk is arranged on the inner side of the half wheel hub, and the electromagnetic sensor on the circuit board is close to the magnetic pole of the permanent magnetic disk.

The utility model discloses an intelligence exercise wheel is when dismantling or assembling the handle, as long as loosen or screw up the screw, does not need the dismouting circuit, the intelligent exercise wheel dismouting of being convenient for and maintenance.

[ description of the drawings ]

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a front view of the intelligent exercise wheel of the embodiment of the present invention.

Fig. 2 is a right side view of the intelligent exercise wheel of the embodiment of the present invention.

Fig. 3 is a sectional view taken along line a in fig. 1.

Fig. 4 is a partially enlarged view of the portion i in fig. 3.

Fig. 5 is a sectional view taken along line B in fig. 2.

FIG. 6 is an enlarged view of a portion III of FIG. 5.

Fig. 7 is a perspective view of the structure of the intelligent exercise wheel in the embodiment of the present invention.

Fig. 8 is a perspective view of the torsion spring according to the embodiment of the present invention.

Fig. 9 is a schematic diagram of a pressure measurement circuit according to an embodiment of the present invention.

Fig. 10 is a structural diagram of an angle measuring circuit according to an embodiment of the present invention.

Fig. 11 is a schematic block diagram of a control circuit according to an embodiment of the present invention.

Fig. 12 is a measurement circuit schematic diagram of the heart rate measurement circuit of the embodiment of the present invention.

[ detailed description of the invention ]

The structure and principle of the intelligent exercise wheel of the embodiment of the invention are shown in fig. 1 to 12, and the intelligent exercise wheel comprises a roller 1, a support shaft 2, two handles 3 and a control circuit.

The roller 1 comprises two half wheels arranged on the left and right, the left half wheel 1A and the right half wheel are connected together through a screw 11, and the torsion spring 4 is arranged in a cavity inside the roller 1 and between the left half wheel 1A and the right half wheel 1B. The torsion spring 4 is a duplex torsion spring, the two legs 401 are located in the middle of the duplex torsion spring and connected together, and the two legs 402 are located on two sides of the duplex torsion spring. The support shaft 2 has two radial holes 203 in the middle thereof, and the legs 402 of the double torsion spring are inserted into the radial holes 203 of the support shaft 2. The combination surface of the rim of the left half wheel 1A and the rim of the right half wheel 1B is provided with a radial clamping groove 101, and the supporting leg 401 of the duplex torsion spring is clamped in the radial clamping groove 101.

When a user pushes the exercise wheel to move forward, the supporting shaft 2 and the exercise wheel rotate relatively, the torsion spring 4 contracts inwards under the circumferential force to store energy, and the exercise wheel is decelerated under the reverse force of the torsion spring 4. When the user pulls back the exercise wheel, the torsion spring 4 releases the stored energy, reducing the force of the user pulling back. The torsion spring 4 can reduce the difficulty of return stroke and the risk of muscle strain, thereby achieving the purpose of reducing the difficulty of abdomen building roller entering the door.

The control circuit comprises a microcontroller (data processing center), a heart rate measuring circuit, an angle measuring circuit, a six-axis acceleration sensor, a pressure measuring circuit, a power management module, a storage module and a wireless communication module for communicating with the smart phone.

The circuit board of the control circuit is composed of two sub circuit boards which are respectively fixed at two ends of the inner hole of the supporting shaft 2, and the two

sub circuit boards

8A and 8B are electrically connected through a connecting wire 12 and a wire connector 13, however, the two

sub circuit boards

8A and 8B are respectively fixed in the inner hole of the supporting shaft 2 by screws with certain difficulty.

In the present embodiment, the support shaft 2 includes a sleeve 201 and an inner core 202, the inner core 202 is mounted in an inner hole of the sleeve 201, and an end of the sleeve 201 is inserted into a socket of the handle 3. Two ends of the inner hole of the inner core 202 are respectively provided with a supporting seat 204, and the two sub circuit boards are respectively fixed on the supporting seats 204 at the two ends of the inner hole of the inner core 202. The side of the inner core 202 facing the support base 204 has a radial opening 205 for the mounting operation of the two daughter boards. By means of this opening 205, the two

daughter boards

8A and 8B can be easily screwed to the support blocks 204 at both ends of the inner bore of the core 202 and connected by the connecting wires 12 and the connecting wire 13. The inner core 202 and the two

sub circuit boards

8A and 8B are assembled and then inserted into the inner hole of the sleeve 201 as an assembly, so that the assembly process of the circuit boards and the supporting shaft 2 is simplified.

The end of the handle 3 is provided with an axial bearing hole 301, the end of the supporting shaft 2 is inserted into the bearing hole 301 of the handle 3, and the handle 3 and the supporting shaft 2 are fixed together by the handle fixing screw 14.

As shown in fig. 11, the control circuit includes a microcontroller (data processing center), a heart rate measuring circuit, an angle measuring circuit, a six-axis acceleration sensor, an amplifying circuit of a pressure measuring circuit, a power management module, a storage module, and a wireless communication module for communicating with a smartphone, which are disposed on the sub-circuit board 8A, and the heart rate measuring circuit, the angle measuring circuit, the six-axis acceleration sensor, the pressure measuring circuit, the storage module, and the wireless communication module are respectively connected to the microcontroller.

The tissue and body fluid around the heart can conduct electricity, so that the human body can be regarded as a volume conductor with three-dimensional space of length, width and thickness. The heart is similar to the power supply, and the sum of the action potential changes of countless myocardial cells can be transmitted and reflected to the body surface. There are potential differences between many points on the body surface, and there are many points that are equipotential without potential differences between them.

The power management module comprises a rechargeable battery and a charging and power supply control circuit of the battery.

The intelligent exercise wheel calculates the heart rate of the user by measuring the potential difference of the left hand and the right hand of the user. Therefore, heart rate measurement needs to set up heart rate measuring electrode on handle 3, and the heart rate measuring electrode of this embodiment is conductive rubber sleeve 6. The conductive rubber sleeve 6 is sleeved outside the handle 3. Each sub circuit board is provided with a metal elastic sheet 15, and the metal elastic sheet 15 is electrically connected with the circuit on the sub circuit board. The copper conductive screws 16 penetrate through the screw holes of the conductive rubber sleeves 6, the threaded holes of the handles 3 and the screw holes of the supporting shaft 2 and prop against the metal elastic sheet 15, so that the conductive rubber sleeves 6 on the two handles 3 are electrically connected with the heart rate measuring circuit through the respective conductive screws 16 and the metal elastic sheet 15.

As shown in fig. 12, the human body forms a measuring loop through the conductive rubber sleeve 6 and the heart rate measuring circuit.

The pressure measurement circuit includes a pressure sensor and an amplification circuit. The pressure sensor comprises 4 strain gauge resistors 17, wherein the 4 strain gauge resistors 17 are adhered to the outer surface of the supporting shaft 2 and are mutually staggered by 90 degrees along the circumferential direction of the supporting shaft 2. As shown in fig. 9, the 4 strain gauge resistors R1 to R4 form a bridge measurement circuit, the input end of the bridge measurement circuit is connected to the dc power supply V, and the output end is connected to the microcontroller through the amplifier circuit. The sub-circuit board 8B includes terminals of 4 strain gauge resistors 17, and leads 19 of the 4 strain gauge resistors 17 are soldered to the terminals of the sub-circuit board 5B and electrically connected to the amplifier circuit on the sub-circuit board 5A through connecting wires.

The pressure sensor adopts the full-bridge mode of operation, converts the change of resistance into through the deformation of foil gage resistance 17, obtains great voltage signal, and amplifier circuit sends voltage signal for microcontroller (data processing center), calculates and obtains back shaft 2 and receives vertical decurrent pressure F1, converts the pressure F of exercise wheel to ground to become F1+ G (G is the gravity of exercise wheel), and microprocessor sends pressure data to user's cell-phone through wireless communication module again.

As shown in fig. 4 and 10, the angle measuring circuit includes an electromagnetic sensor 18 and an annular permanent magnet disk 7, and the permanent magnet disk 7 includes 4 pairs of magnetic poles 701. An electromagnetic sensor 18 (a reed switch or a hall sensor) of the angle measuring circuit is mounted on the sub circuit board 5A and is connected with the microprocessor through a line on the sub circuit board 5A. The annular permanent magnetic disk 7 is arranged on the inner side of the hub of the left half wheel 1A of the roller 1 through hot melting, and the magnetic pole 701 of the permanent magnetic disk 7 is arranged on the periphery of the electromagnetic sensor 18.

The six-axis acceleration sensor is mounted on the sub-circuit board 5A and connected with the microprocessor. The Z-axis of the six-axis acceleration sensor is parallel to the axis of the support shaft 2.

When the user pushes the exercise wheel to move forward, the exercise wheel and the sub circuit board 5A rotate relatively, the electromagnetic sensor 18 measures the change of the magnetic field to obtain the relative rotation angle β between the exercise wheel and the rolling shaft, when the user pushes the exercise wheel to move forward, the supporting shaft 2 held by the hand rotates relative to the ground, the rotating angle of the supporting shaft 2 relative to the ground is gamma, the rotating direction of the supporting shaft 2 is opposite to the rotating direction of the exercise wheel, gamma is a negative value, the rotating angle α of the exercise wheel relative to the ground is β + gamma, and the advancing distance S of the exercise wheel is α R (R is the radius of the exercise wheel).

The pressure sensor of the above embodiment of the present invention is directly mounted on the supporting shaft and electrically connected to the circuit board in the inner hole of the supporting shaft; the conductive rubber sleeve serving as the heart rate measuring electrode is electrically connected with a heart rate measuring circuit on the circuit board through a conductive screw and a metal elastic sheet; and the disassembly and the assembly do not need to be carried out or connected with circuits, so that the assembly and the maintenance of the product are convenient.

Claims

1. An intelligent exercise wheel with heart rate measuring function comprises a roller, a support shaft, two handles and a control circuit, wherein the control circuit comprises a circuit board, heart rate measuring electrodes are mounted on the handles, and the heart rate measuring electrodes are electrically connected with the circuit board mounted in the hollow support shaft; the wheel hub of the roller is loosely sleeved in the middle of the supporting shaft, and the circuit board comprises two metal elastic sheets which are respectively electrically connected with the circuit on the circuit board; the inner end of the handle comprises an axial bearing hole, and the end part of the support shaft is inserted into the bearing hole of the handle; the conductive screw penetrates through the heart rate measuring electrode, the handle and the supporting shaft and abuts against the metal elastic sheet, and the heart rate measuring electrode is electrically connected with the circuit board.

2. The intelligent exercise wheel as claimed in claim 1, wherein the heart rate measuring electrode is a conductive rubber sleeve, and the conductive rubber sleeve is sleeved outside the handle; the circuit board comprises two sub circuit boards which are respectively fixed at two ends of an inner hole of the support shaft, and the two sub circuit boards are electrically connected with the wire connector through a circuit; each sub circuit board comprises one metal elastic sheet, and the metal elastic sheet is electrically connected with the circuit on the sub circuit board; the conductive screw penetrates through the screw hole of the conductive rubber sleeve, the threaded hole of the handle and the screw hole of the supporting shaft and abuts against the metal elastic sheet, and therefore the conductive rubber sleeve is electrically connected with the sub circuit board.

3. The intelligent exercise wheel as claimed in claim 2, wherein the support shaft comprises a sleeve and an inner core, the inner core is installed in an inner hole of the sleeve, and an end of the sleeve is inserted into a bearing hole of the handle; the inner hole of the inner core comprises two supporting seats, and the two sub circuit boards are respectively fixed on the supporting seats at two ends of the inner hole of the inner core; the side of the inner core facing the support seat comprises radial openings for operating the two sub-circuit boards.

4. The intelligent exercise wheel as claimed in claim 1, wherein the intelligent exercise wheel comprises a torsion spring, the roller wheel comprises two half wheels arranged left and right, and the torsion spring is arranged in a cavity between the two half wheels inside the roller wheel; the first supporting leg of the torsional spring is fixed on the supporting shaft, and the second supporting leg of the torsional spring is fixed inside the wheel rim of the roller.

5. The intelligent exercise wheel as claimed in claim 4, wherein the torsion spring is a duplex torsion spring, the duplex torsion spring comprises two first legs and two second legs, the two second legs are located in the middle of the duplex torsion spring and connected together, and the two first legs are located on two sides of the duplex torsion spring; the middle part of the support shaft comprises two radial holes, and the first leg of the duplex torsion spring is inserted into the radial holes of the support shaft; the combined surface of the left half wheel rim and the right half wheel rim comprises a radial clamping groove, and the second supporting leg of the duplex torsion spring is clamped in the radial clamping groove.

6. The intelligent exercise wheel of claim 3, wherein the control circuit comprises an angle measurement circuit comprising an electromagnetic sensor and an annular permanent magnet disc comprising a plurality of magnetic poles; the electromagnetic sensor is arranged on the circuit board and is electrically connected with the circuit of the circuit board; the annular permanent magnetic disk is arranged on the inner side of the half wheel hub, and the electromagnetic sensor on the circuit board is close to the magnetic pole of the permanent magnetic disk.