CN114272553B - Torsion detecting device of fitness equipment - Google Patents
Torsion detecting device of fitness equipment Download PDFInfo
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- CN114272553B CN114272553B CN202011041006.5A CN202011041006A CN114272553B CN 114272553 B CN114272553 B CN 114272553B CN 202011041006 A CN202011041006 A CN 202011041006A CN 114272553 B CN114272553 B CN 114272553B
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- base
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- flywheel
- fixed
- load sensor
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Abstract
The invention provides a torsion detecting device of body-building equipment, in particular to a torsion detecting device which utilizes a steel cable to drive a magnet seat to move so as to change the area change of a magnet of the magnet seat covering a flywheel, the area of the magnet covering the flywheel is changed so as to change the magnetic attraction resistance of the magnet seat when the flywheel rotates, and a load sensor detects the reaction force of a magnetic resistance mechanism so as to calculate the torsion value of the flywheel.
Description
Technical Field
The invention relates to a torsion detecting device of body-building equipment, in particular to a torsion detecting device which utilizes a steel cable to drive the displacement of a magnet seat so as to change the area change of a magnet of the magnet seat covering a flywheel, the area of the magnet covering the flywheel is changed so as to change the magnetic attraction resistance of the magnet seat when the flywheel rotates, and a load sensor detects the reaction force of a magnetic resistance mechanism so as to calculate the torsion value of the flywheel.
Background
Although the nature of indoor exercise equipment is different from outdoor exercise, at the present stage, indoor exercise equipment in various fields can train muscles of all parts of a body, so that a consumer can train physical fitness even at home or indoors, and the purpose of fitness training is achieved.
Disclosure of Invention
The present invention is directed to a torsion detecting device for exercise equipment, which overcomes the disadvantage of inaccurate detection of torsion due to wear of the device.
In order to realize the purpose, the invention adopts the following scheme: a torsion detection device of fitness equipment comprises a frame, wherein a flywheel and a torsion detection device are pivoted on the frame, the torsion detection device comprises a load sensor and a magnetic resistance mechanism, one end of the load sensor is fixed on an upper base, the upper base combined with the load sensor is locked on a fixed base body of the magnetic resistance mechanism, the other end of the load sensor is fixed on a lower base, and the lower base combined with the load sensor is fixed on the frame; one end of a magnet base is provided with a rotating shaft which can lead the magnet base to be movably pivoted on the fixed base body, and the other end of the magnet base is provided with a plurality of magnets; a steel cable, which can make the magnet seat use the rotating shaft as the rotating axis to change the relative position between the magnet and the flywheel, namely change the area change of the magnet covering the flywheel; by the structure, the area of the magnet covering the flywheel is changed, so that the magnetic attraction resistance of the magnet seat on the flywheel during rotation is changed, and the load sensor can detect the reaction force of the magnetic resistance mechanism so as to calculate the torque force value of the flywheel.
One end of the fixed base of the reluctance mechanism is connected to one end of the pair of connecting rod sets, the other end of the connecting rod sets is connected to the lower side of the magnet base, a rotating shaft is arranged at the rotating shaft between the connecting rod sets, and the fixed base, the magnet base and the pair of connecting rod sets form a four-bar linkage in a combined structure.
The load sensor is provided with a first end and a second end, the first end of the load sensor is provided with a first positioning hole, the second end of the load sensor is provided with a second positioning hole, the lower base is provided with a positioning groove, a through hole communicated with the positioning groove, a plurality of through holes and a screw hole, the screw hole on the lower base is positioned between the through holes and is separated from the through holes, the first end of the load sensor penetrates through the positioning groove of the lower base, a fixing piece penetrates through the through hole communicated with the positioning groove and is screwed on the first positioning hole of the load sensor, a hexagonal bolt is matched with a nut and is screwed on the screw hole of the lower base, the upper base is provided with a positioning groove, a through hole communicated with the positioning groove and a plurality of positioning screw holes, the second end of the load sensor penetrates through the positioning groove of the upper base, another fixing piece penetrates through the through hole communicated with the positioning groove of the upper base and is screwed on the second positioning hole of the load sensor, and a plurality of first gaskets are respectively arranged between the fixing piece and the lower base, the other fixing piece and the upper base, and the second positioning hole can be used for increasing the friction surface and reducing looseness.
Wherein, an adjusting rod which rotates by adopting a shaft center is pivoted on the frame; one end of the fixed base of the magnetic resistance mechanism is provided with a rolling shaft, the magnet base is provided with an accommodating space, and two sides of the accommodating space are provided with the plurality of magnets; one end of the steel cable is fixed on the fixed base of the magnetic resistance mechanism, and the other end of the steel cable is sequentially wound around the rotating shaft between the connecting rod sets and the rolling shaft of the fixed base and is fixed on the adjusting rod.
The torsion detecting device is fixed by a plurality of through bolts penetrating through a plurality of through holes of the frame and the lower base and combining a second washer and a nut with the through bolts, the accommodating space of the magnet seat can accommodate the periphery of the flywheel, and the magnets on two sides of the accommodating space can be used for generating a magnetic resistance effect on the flywheel.
The hexagonal bolt is arranged between the lower base and the upper base, a gap is reserved between the top surface of the hexagonal bolt and the upper base, and the hexagonal bolt can prevent the deformation of the load sensor caused by the pressure exerted by the external gravity of the fitness equipment.
Wherein, an adjusting rod which rotates by adopting a shaft center is pivoted on the frame; the magnet seat may be provided with a tail end seat, one end of the steel cable may be pivoted to the tail end seat of the magnet seat, and the other end of the steel cable is fixed to the adjusting rod, when the adjusting rod rotates around the axis as a reference under external force to synchronously pull the steel cable to generate displacement, the steel cable synchronously pulls the magnet seat to make the magnet seat pivot around the rotating shaft as the axis.
After the technical scheme is adopted, the steel cable is utilized to drive the magnet seat to move so as to change the change of the area of the magnet seat covering the flywheel, the area of the magnet covering the flywheel is changed so as to change the magnetic attraction resistance of the magnet seat when the flywheel rotates, and the load sensor detects the reaction force of the magnetic resistance mechanism so as to calculate the torque force value of the flywheel.
Drawings
Fig. 1 is a partial perspective view of the torsion detecting device of the present invention disposed on a fitness apparatus;
FIG. 2 is an exploded perspective view of the torque detection device of the present invention;
FIG. 3 is a cross-sectional view of the base, load cell, top mount combination of the present invention;
FIG. 4 is a schematic diagram of the magnetic base driven by an adjusting rod pulling a steel cable, the magnetic base adjusting the magnetic attraction resistance relative to the flywheel;
FIG. 5 is a schematic view of the present invention using a steel cable to drive a magnet holder relatively close to a flywheel;
FIG. 6 is a diagram of another embodiment of the present invention.
The reference numbers illustrate:
torsion detecting device
Load cell
First end
A first locating hole
A second end
120
Lower base
Positioning groove
Perforation
231
Screw hole
Fixing piece
Hexagon bolt
Screw cap
Go up base
Positioning groove
Perforation
331.. Positioning screw hole
Fixing piece
A first washer
Magnetic resistance mechanism
A fixed stand
A fixture
Roller, 53
54. magnet holder
541.. Tail end seat
55
56
A magnet
58. linkage
Rotating shaft
Steel cord
Through bolt
A second gasket
Screw cap
9
Flywheel 91
Adjusting rod
Shaft center
H.
Detailed Description
Referring to fig. 1, the present invention provides a torsion detecting device 10 for exercise equipment, and more particularly, to a torsion detecting device 10 for exercise equipment, which utilizes a steel cable 6 to drive a magnet base 54 to move so as to change a relative position between a magnet 57 of the magnet base 54 and a flywheel 91, i.e., change an area of the magnet 57 covering the flywheel 91, and change an area of the magnet 57 covering the flywheel 91, so as to change a magnitude of a magnetic attraction resistance of the magnet 57 of the magnet base 54 when the flywheel 91 rotates, and a load sensor 1 can detect a reaction force of a reluctance mechanism 5, thereby calculating a torsion value of the flywheel 91.
Referring to fig. 1 and 4, the exercise apparatus shown in the embodiment of the present invention includes a frame 9, a flywheel 91, a torque detecting device 10 and an adjusting rod 92 rotating around an axis C are pivotally disposed on the frame 9.
Referring to fig. 2, the torque force detecting device 10 includes a load sensor 1 and a magnetic resistance mechanism 5, the load sensor 1 has a first end 11 and a second end 12, the first end 11 of the load sensor 1 has a first positioning hole 110, the second end 12 of the load sensor 1 has a second positioning hole 120, a lower base 2 has a positioning groove 21, a through hole 22 communicating with the positioning groove 21, a plurality of through holes 231 and a screw hole 24, the screw hole 24 on the lower base 2 is located between the through holes 231, the first end 11 of the load sensor 1 passes through the positioning groove 21 of the lower base 2 and passes through a fixing member 25 to the through hole 22 communicating with the positioning groove 21 and is screwed in the first positioning hole 110 of the load sensor 1, a hexagonal bolt 26 is screwed in the screw hole 24 of the lower base 2 in cooperation with a nut 27, an upper base 3 has a positioning groove 31, a through hole 32 communicating with the positioning groove 31 and a plurality of positioning screw holes 331, the second end 12 of the load sensor 1 passes through the fixing member 31, and passes through another positioning hole 34 of the fixing member 34 to be screwed in the lower base 2, and the positioning groove 31 can be loosened by reducing the second end of the second positioning groove 31 and the second positioning ring 34 of the load sensor 1; the magnetic resistance mechanism 5 has a fixed base 51, which can combine the upper base 3 on the lower side of the fixed base 51 by a plurality of fasteners 52, one end of the fixed base 51 has a roller 53, and a magnet base 54 is movably pivoted on the fixed base 51 by a rotating shaft 55, the magnet base 54 has a containing space 56, two sides of the containing space 56 have a plurality of magnets 57, the other end of the fixed base 51 is connected to one end of a pair of links 58, the other end of the links 58 is connected to the lower side of the magnet base 54, a rotating shaft 59 is arranged at the rotating shaft between the links 58, the fixed base 51, the magnet base 54 and the pair of links 58 form a four-bar linkage mechanism together; one end of the steel cable 6 is fixed to the fixed base 51, and the other end of the steel cable is sequentially wound around the rotating shaft 59 between the connecting rod sets 58 and the roller 53 of the fixed base 51 and fixed to the adjusting rod 92, as shown in fig. 4.
Referring to fig. 1 and 4, the torque detecting device 10 is disposed through the plurality of through-bolts 7 passing through the plurality of through-holes 231 of the frame 9 and the lower base 2 and fixed by the second washers 71 and the nuts 72 being combined with the through-bolts 7, the accommodating space 56 of the magnet base 54 can accommodate the periphery of the flywheel 91, and the magnets 57 at two sides of the accommodating space 56 can generate magnetic resistance effect on the flywheel 91.
Referring to fig. 1 and 4, when the adjusting rod 92 rotates around the axis C under external force to synchronously pull the steel cable 6 to generate displacement, the steel cable 6 synchronously pulls the rotating shafts 59 of the pair of linkage assemblies 58, the magnet base 54 pivots around the rotating shaft 55, and the pair of linkage assemblies 58 pushes the magnet base 54 upwards during pivoting, so that the magnitude of the magnetic attraction resistance of the magnet 57 of the magnet base 54 when the flywheel 91 rotates can be changed by changing the relative position between the magnet 57 and the flywheel 91 (refer to fig. 5 at the same time), and the load sensor 1 can detect the reaction force of the reluctance mechanism 5, thereby calculating the torque force of the flywheel 91.
The first end 11 and the second end 12 of the load sensor 1 are combined with the lower base 2 and the upper base 3, the hexagon bolt 26 screwed into the screw hole 24 of the lower base 2 is disposed between the lower base 2 and the upper base 3, a gap H is formed between the top surface of the hexagon bolt 26 and the upper base 3, and the hexagon bolt 26 can prevent the load sensor 1 from deforming due to the pressure exerted by the external gravity of the exercise equipment, as shown in fig. 3.
Referring to another embodiment shown in fig. 6, the magnet holder 54 may be provided with a tail end seat 541, one end of the steel cable 6 may be pivoted to the tail end seat 541 of the magnet holder 54, and the other end is fixed to the adjusting rod 92, when the adjusting rod 92 is rotated by an external force based on the axis C to synchronously pull the steel cable 6 to generate displacement (refer to fig. 4 at the same time), the steel cable 6 synchronously pulls the magnet holder 54, so that the magnet holder 54 pivots about the rotating shaft 55.
In summary, the torsion detecting device 10 of the exercise apparatus of the present invention utilizes a steel cable 6 to drive the magnet base 54 to move, so as to change the relative position between the magnet 57 of the magnet base 54 and the flywheel 91, i.e. change the area of the magnet 57 covering the flywheel 91, and the area of the magnet 57 covering the flywheel 91 changes, so as to change the magnetic attraction resistance of the magnet 57 of the magnet base 54 on the rotation of the flywheel 91, and a load sensor 1 can detect the reaction force of the reluctance mechanism 5, and further calculate the torsion value of the flywheel 91.
Claims (7)
1. A torsion detection device of body-building apparatus, the body-building apparatus includes a stander, there is a flywheel, a torsion detection device in the pivot of the stander, the torsion detection device includes a load cell and a magnetic resistance mechanism, characterized by that, one end of the load cell is fixed on upper base, the upper base combined with load cell is locked and fixed on fixed base of the magnetic resistance mechanism, and another end of the load cell is fixed on lower base, the lower base combined with load cell is fixed on stander; one end of a magnet seat is provided with a rotating shaft which can lead the magnet seat to be movably pivoted on the fixed seat body, and the other end of the magnet seat is provided with a plurality of magnets; a steel cable, which can make the magnet seat use the rotating shaft as the rotating axis to change the relative position between the magnet and the flywheel, namely change the area change of the magnet covering the flywheel; by means of the structure, the area of the magnet covering the flywheel is changed, so that the size of the magnetic attraction resistance of the magnet seat on the flywheel during rotation can be changed, and the load sensor can detect the reaction force of the magnetic resistance mechanism, so that the torque force value of the flywheel can be calculated.
2. The torque force detecting device according to claim 1, wherein one end of the fixed base of the magnetic resistance mechanism is connected to one end of a pair of links, and the other end of the links is connected to the lower side of the magnet base, a rotating shaft is provided between the links, and the fixed base, the magnet base and the pair of links form a four-bar linkage.
3. The torsion detecting apparatus for exercise equipment according to claim 1, wherein the load sensor has a first end and a second end, the first end of the load sensor has a first positioning hole, the second end of the load sensor has a second positioning hole, the lower base has a positioning slot, a through hole communicating with the positioning slot, a plurality of through holes and a screw hole, the screw hole of the lower base is located between the plurality of through holes and spaced apart from each other, the first end of the load sensor passes through the positioning slot of the lower base, and is screwed into the first positioning hole of the load sensor by a fixing member extending through the through hole communicating with the positioning slot, and a hexagonal bolt fitting nut is screwed into the screw hole of the lower base, the upper base has a positioning slot, a through hole communicating with the positioning slot and a plurality of positioning screw holes, the second end of the load sensor passes through the positioning slot of the upper base, and is screwed into the second positioning hole of the load sensor by another fixing member extending through the through hole communicating with the positioning slot of the upper base, and a plurality of first washers are respectively provided between the fixing member and the lower base, and another fixing member and the upper base, and the other fixing member is screwed into the second end of the load sensor to reduce friction surface.
4. The torque force detecting device of exercise apparatus according to claim 2, wherein the frame further comprises an adjusting rod pivoted to the frame; one end of the fixed base of the magnetic resistance mechanism is provided with a rolling shaft, the magnet base is provided with an accommodating space, and two sides of the accommodating space are provided with the plurality of magnets; one end of the steel cable is fixed on the fixed base of the magnetic resistance mechanism, and the other end of the steel cable sequentially winds around the rotating shaft between the connecting rod sets and the rolling shaft of the fixed base and is fixed on the adjusting rod.
5. The torque detecting device according to claim 4, wherein the torque detecting device is fixed to the through holes of the frame and the bottom base by a plurality of through bolts and a second washer and a nut, and the magnet seat is configured to receive the periphery of the flywheel, and the magnets at two sides of the receiving space are configured to generate a magnetic resistance effect on the flywheel.
6. The torsion detecting device according to claim 3, wherein the hexagonal bolt screwed into the screw hole of the lower base is disposed between the lower base and the upper base, and a gap is formed between the top surface of the hexagonal bolt and the upper base, and the hexagonal bolt prevents the deformation of the load sensor caused by the external gravity.
7. The torque force detecting device according to claim 2, wherein an adjusting rod rotating around an axis is further pivotally disposed on the frame; the magnet seat may be provided with a tail end seat, one end of the steel cable may be pivoted to the tail end seat of the magnet seat, and the other end of the steel cable is fixed to the adjusting rod, when the adjusting rod rotates around the axis as a reference under external force to synchronously pull the steel cable to generate displacement, the steel cable synchronously pulls the magnet seat to make the magnet seat pivot around the rotating shaft as the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011041006.5A CN114272553B (en) | 2020-09-28 | 2020-09-28 | Torsion detecting device of fitness equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011041006.5A CN114272553B (en) | 2020-09-28 | 2020-09-28 | Torsion detecting device of fitness equipment |
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| Publication Number | Publication Date |
|---|---|
| CN114272553A CN114272553A (en) | 2022-04-05 |
| CN114272553B true CN114272553B (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011041006.5A Active CN114272553B (en) | 2020-09-28 | 2020-09-28 | Torsion detecting device of fitness equipment |
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| Country | Link |
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| CN (1) | CN114272553B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1017361A (en) * | 1962-02-23 | 1966-01-19 | Atlas Bolt And Screw Company | Load cell mounting and alignment for weighing means |
| TWM503914U (en) * | 2015-03-17 | 2015-07-01 | Haouse Sports Cycle Co Ltd | Load perception structure of magnetic control exercise bike |
| CN109701215A (en) * | 2018-12-29 | 2019-05-03 | 中国科学院合肥物质科学研究院 | A kind of Power Vehicle power regulation mechanism |
| CN209630522U (en) * | 2018-11-14 | 2019-11-15 | 祺骅股份有限公司 | Flywheel fitness equipment with variable reluctance |
| CN211513283U (en) * | 2019-11-27 | 2020-09-18 | 乔山健身器材（上海）有限公司 | Flywheel body-building vehicle |
-
2020
- 2020-09-28 CN CN202011041006.5A patent/CN114272553B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1017361A (en) * | 1962-02-23 | 1966-01-19 | Atlas Bolt And Screw Company | Load cell mounting and alignment for weighing means |
| TWM503914U (en) * | 2015-03-17 | 2015-07-01 | Haouse Sports Cycle Co Ltd | Load perception structure of magnetic control exercise bike |
| CN209630522U (en) * | 2018-11-14 | 2019-11-15 | 祺骅股份有限公司 | Flywheel fitness equipment with variable reluctance |
| CN109701215A (en) * | 2018-12-29 | 2019-05-03 | 中国科学院合肥物质科学研究院 | A kind of Power Vehicle power regulation mechanism |
| CN211513283U (en) * | 2019-11-27 | 2020-09-18 | 乔山健身器材（上海）有限公司 | Flywheel body-building vehicle |
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| Publication number | Publication date |
|---|---|
| CN114272553A (en) | 2022-04-05 |
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