CN116099155B

CN116099155B - Magnetic control brake

Info

Publication number: CN116099155B
Application number: CN202310010591.XA
Authority: CN
Inventors: 李佳蓉
Original assignee: Dongtaiqidian Electronic Technology Co ltd
Current assignee: Dongtaiqidian Electronic Technology Co ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-10-31
Anticipated expiration: 2043-01-05
Also published as: CN116099155A

Abstract

The invention relates to the field of fitness equipment, in particular to a magnetic control brake, which comprises a flywheel, wherein a round cover is arranged on the opening surface of the flywheel through a screw, a supporting disc is arranged in the flywheel, a supporting shaft fixedly connected with the supporting disc is penetrated through the middle position of one side surface of the supporting disc, a plurality of permanent magnets are arranged on the annular side surface of the supporting disc at equal intervals, a plurality of threaded holes are formed in the edge of one surface of the round cover, which is positioned in the flywheel, at equal intervals in an annular mode, a screw rod is connected in the threaded holes in a threaded mode, a steel plate piece adsorbed with permanent magnet iron is rotationally connected to one end of the screw rod, which is positioned in the flywheel, the steel plate piece is slidably arranged in a housing, and one surface of the housing, which faces the supporting disc, is in an opening shape and is fixedly connected with a thick plastic plate, and the magnetic control brake has the following advantages: the body-building cost is reduced, the trouble of wiring is not needed to be considered, the situation of injury caused by electric leakage is avoided, and the safety is improved.

Description

Magnetic control brake

Technical Field

The invention relates to a magnetic control brake, and belongs to the field of body-building equipment.

Background

The body-building cycle is to make the body-building person achieve the effect of exercise and body-building by overcoming the resistance brought by the flywheel with a certain weight to simulate the riding feeling in the process of stepping. The electromagnet is usually arranged in the flywheel and is electrically connected with an external power supply, a magnetic field is generated after the electromagnet is electrified, the outer periphery of the flywheel is made of a nonferromagnetic metal ring, and because the metal ring on the flywheel continuously cuts a stable magnetic field magnetic induction line when the flywheel rotates at a high speed, closed loop type induction current is generated in the metal ring, and the interaction force between the stable magnetic field and the induction magnetic field generated by the induction current can prevent the metal ring from rotating, so that the flywheel rotates slowly and even stops to achieve a braking effect. The electromagnet is arranged in the flywheel, so that electric energy is consumed, on one hand, the body-building cost is increased, on the other hand, electric shock accidents are easy to occur when the circuit is aged and leaked, and the safety is poor.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a magnetic control brake to solve the problems in the prior art.

In order to achieve the above object, the present invention is realized by the following technical scheme: the utility model provides a magnetic control brake, is including being used for installing the flywheel on the exercise bicycle, flywheel one side is the opening form, flywheel opening face has the dome through the screw mounting, be equipped with the supporting disk in the flywheel, supporting disk one side middle part position runs through have with supporting disk fixed connection's back shaft, the both ends of back shaft all extend to the space outside that dome and flywheel formed, the back shaft rotates with dome, flywheel to be connected, be annular equidistance on the supporting disk annular side and install a plurality of permanent magnets, a plurality of screw holes have been seted up to the one side edge that the dome is in the flywheel in annular equidistance, the screw hole is arranged along supporting shaft length direction, threaded hole threaded connection has the screw rod, the one end rotation that the screw rod is in the flywheel is connected with the steel sheet that adsorbs mutually with permanent magnetism, steel sheet slidable mounting is in the housing, housing is U type structure and housing one end and dome fixed connection, two adjacent sides of steel sheet and screw rod are respectively with two sides sliding contact that are parallel in the housing, the one side that is facing to supporting disk opening form and the thick as the flap and the thick as the thick plate of plastic plate, the thick half width of plastic plate fixed connection, the thick plate and the thick plate of plastic plate.

Specifically, the third bearing is installed to one end that the screw rod is in the flywheel, the hinge is installed to one side lower part that the steel sheet piece faced the screw rod, another blade portion of hinge and third bearing outer lane fixed connection, there is the clearance between steel sheet piece and the thick plastic slab, there is the clearance between the steel sheet piece and the one side that the cover is interior facing the thick plastic slab, first rubber sheet is installed to steel sheet piece lower surface middle part position, first rubber sheet deviate from one side of steel sheet evenly be fixed with a plurality of first latches with first rubber sheet integrated into one piece, one side that the thick plastic slab faced the steel sheet kept away from the dome is fixed with the second rubber sheet, the one side equidistance that the second rubber sheet faced first rubber sheet is fixed with a plurality of second latches with first latch matched with, second latch and second rubber sheet integrated into one piece.

Specifically, a first groove is formed in the middle of the lower surface of the steel plate piece, the first rubber piece is stuck in the first groove, and the depth of the first groove is the same as the thickness of the first rubber piece.

Specifically, a second groove is formed in the position, where the second rubber sheet is mounted, of the thick plastic plate, the second rubber sheet is stuck in the second groove, and the depth of the second groove is the same as the thickness of the second rubber sheet.

Specifically, a plurality of gaps are formed in the annular side face of the support disc at equal intervals in an annular mode, and the permanent magnets are installed in the gaps.

Specifically, the jack is worn to the seting up of supporting disk one side middle part position, the back shaft runs through and wears the jack and the back shaft is fixed in wearing the jack, first round hole has been seted up to dome one side middle part position, the flywheel deviates from the one side middle part position of dome and has seted up the second round hole, first round hole, second round hole are run through respectively at the both ends of back shaft, first round hole inboard is equipped with first bearing, first bearing outer lane and dome fixed connection, first bearing housing is established on the back shaft, second round hole inboard is equipped with the second bearing, second bearing outer lane and flywheel fixed connection, the second bearing housing is established on the back shaft.

Specifically, the outside of second round hole is equipped with the belt pulley, the belt pulley is hollow form structure, belt pulley one end and flywheel fixed connection, belt pulley and flywheel concentric arrangement, the back shaft runs through the belt pulley and with belt pulley sliding contact.

Specifically, one end of the screw rod, which is positioned at the outer side of the flywheel, is fixedly connected with a knob head, the cross section of the knob head is round, and a plurality of bulges are uniformly machined on the outer surface of the knob head.

The invention has the beneficial effects that:

1. the support disc fixed on the support shaft is arranged in the space formed by the circular cover and the flywheel, at the moment, the permanent magnet on the support disc and the steel plate sheet in the flywheel are mutually attracted to generate braking force for preventing the flywheel from rotating, personnel can achieve the purpose of exercise by overcoming the braking force, the permanent magnet is adopted, electric energy is not required to be consumed, the body-building cost is reduced, meanwhile, the trouble of wiring is not required to be considered, the situation of personal injury due to electric leakage is avoided, and the safety is improved.

2. The steel plate is located in the space formed by the thick plastic plate and the housing, the screw is rotated, the screw drives the steel plate to move, the area of the steel plate exposed outside the space formed by the thick plastic plate and the housing is changed, the steel plate is blocked by the thick plastic plate, the permanent magnet has negligible adsorption force on the part of the steel plate located in the space formed by the thick plastic plate and the housing, when the area of the steel plate exposed outside the space formed by the thick plastic plate and the housing is increased, the braking force formed between the steel plate and the permanent magnet is increased, otherwise, the braking force formed between the steel plate and the permanent magnet is reduced, the purpose of adjusting the braking force according to the requirement is realized, and the steel plate is convenient to be suitable for the requirement of different people to exercise.

3. The third bearing on the screw rod is hinged with the steel plate by utilizing the hinge, when the permanent magnet and the steel plate are attracted mutually, the steel plate is inclined, at the moment, the first clamping tooth on the first rubber sheet and the second clamping tooth on the second rubber sheet are clamped mutually, so that the steel plate is prevented from moving along the length direction of the screw rod, the screw rod is prevented from loosening due to vibration in the rotation of the flywheel, the stability of the structure is improved, and when the force applied to the screw rod by a person is large, the first clamping tooth and the second clamping tooth can be deformed and staggered, thereby the adjustment of the position of the steel plate is not influenced.

Drawings

Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of a magnetic brake according to the present invention;

FIG. 2 is a schematic diagram illustrating the assembly of a support shaft, pulley and flywheel in a magnetic brake according to the present invention;

FIG. 3 is a schematic diagram illustrating the assembly of a permanent magnet and a support disc in a magnetic brake according to the present invention;

FIG. 4 is a perspective view of a dome in a magnetic brake according to the present invention;

FIG. 5 is a schematic diagram illustrating the assembly of a screw, a dome, a support shaft, a support disk and a flywheel in a magnetic brake according to the present invention;

FIG. 6 is an enlarged view of FIG. 5 at A;

FIG. 7 is a schematic view showing an assembly of a steel plate, a thick plastic plate and a cover in a magnetic brake according to the present invention;

in the figure: 1. flywheel, 2, dome, 3, back shaft, 4, screw hole, 5, belt pulley, 6, through jack, 7, supporting disk, 8, permanent magnet, 9, breach, 10, first bearing, 11, second bearing, 12, thick plastic sheet, 13, screw rod, 14, housing, 15, steel sheet, 16, knob head, 17, third bearing, 18, first sheet rubber, 19, first latch, 20, second latch, 21, second sheet rubber, 22, first recess, 23, second recess.

Detailed Description

The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.

Referring to fig. 1, 2, 3, 4 and 5, the present invention provides a technical solution: the utility model provides a magnetic control brake, including being used for installing flywheel 1 on the exercise bicycle, utilize a plurality of screws to install dome 2 in the one side of flywheel 1 opening form, the dome 2 forms the space that is used for depositing supporting disk 7 with flywheel 1 jointly this moment, wear jack 6 that 7 one side middle part position was offered with supporting shaft 3, and make supporting shaft 3 fix in wearing jack 6, then run through the first round hole that 2 one side middle part positions were offered respectively with the both ends of supporting shaft 3 and flywheel 1 face middle part positions that deviate from dome 2 offered the second round hole, make the outer lane that the first round hole inboard set up establish on supporting shaft 3 with the first bearing 10 cover of dome 2 fixed connection, realize that dome 2 is connected with the rotation of supporting shaft 3, make the outer lane that the second round hole inboard set up and flywheel 1 fixed connection's second bearing 11 cover establish on supporting shaft 3, realize flywheel 1 and the rotation of supporting shaft 3 and be connected, make the hollow form belt pulley 5 one end and flywheel 1 fixed connection that the second round hole outside set up this moment, belt pulley 5 and 1 concentric arrangement, wherein supporting shaft 3 run through belt pulley 5 and pedal 5 make the pedal 5 rotate with the pedal 5 and pedal the belt pulley 5 and pedal 5 and the fixed carrier pulley 5 and pedal the pedal 5 and the person and pedal the belt pulley and pedal 5 and rotate on the fixed carrier.

Referring to fig. 3 and 5, a plurality of permanent magnets 8 are respectively installed in a plurality of notches 9 formed on the annular side surface of the support disc 7 at equal intervals in an annular shape, so that the purpose of hiding the permanent magnets 8 is achieved, the space occupied by the structures formed by the permanent magnets 8 and the support disc 7 is reduced, and a thick plastic plate 12 with a thicker thickness is conveniently installed in the flywheel 1.

Referring to fig. 1, fig. 3, fig. 4, fig. 5 and fig. 6, a plurality of screws 13 are respectively screwed into a plurality of threaded holes 4 which are formed in an annular equidistant manner at the edge of one side of the round cover 2 in the flywheel 1 and are arranged along the length direction of the supporting shaft 3, so that the threaded connection between the screws 13 and the round cover 2 is realized, then a knob head 16 is fixed at one end of the screws 13, which is positioned outside the flywheel 1, wherein the cross section of the knob head 16 is circular, a plurality of protrusions are uniformly processed on the outer surface of the knob head 16, the knob head 16 provides a gripping carrier for screwing the screws 13, the protrusions increase the friction coefficient of the surface of the knob head 16, one end of the screws 13, which is positioned inside the flywheel 1, is rotationally connected with a steel sheet 15 adsorbed by a permanent magnet 8, a supporting disc 7 fixed on the supporting shaft 3 is arranged in a space formed by the round cover 2 and the flywheel 1, at the moment, the permanent magnet 8 on the supporting disc 7 and the steel sheet 15 are mutually attracted to generate braking force which blocks the rotation of the flywheel 1, and personnel can achieve the purpose of taking exercise by overcoming the braking force, the braking force without consumption of electric energy of the permanent magnet 8, the body building cost is reduced, meanwhile, the trouble is not required, the situation of taking the wiring is not considered, and the safety is not increased.

Referring to fig. 5, 6 and 7, the steel sheet 15 is slidably mounted in the shell 14 with a U-shaped structure, wherein one end of the shell 14 is fixedly connected with the round cover 2, two adjacent side surfaces of the steel sheet 15 and the third bearing 17 are respectively in sliding contact with two parallel side surfaces in the shell 14, so that under the action of the shell 14, the steel sheet 15 is prevented from rotating, the thick plastic sheet 12 is fixed on one surface of the shell 14 facing the opening of the supporting disc 7, one end of the thick plastic sheet 12 is fixedly connected with the round cover 2, the width of the thick plastic sheet 12 is half of the width of the flywheel 1, the steel sheet 15 is positioned in a space formed by the thick plastic sheet 12 and the shell 14, the screw 13 is rotated, the screw 13 drives the steel sheet 15 to move, the area of the steel sheet 15 exposed outside the space formed by the thick plastic sheet 12 and the shell 14 is blocked by the thick plastic sheet 12, the absorption force of the part of the permanent magnet 8 in the space formed by the thick plastic sheet 12 and the shell 14 is negligible, when the area of the steel sheet 15 exposed outside the thick plastic sheet 12 and the shell 14 is increased, the braking force between the steel sheet 8 and the permanent magnet 8 needs to be reduced, and the braking force required to be reduced, and the braking force between the steel sheet 8 and the permanent magnet needs to be reduced, and the braking force is not required to be adjusted to be increased, and the braking force is required to be reduced.

Referring to fig. 5, 6 and 7, a third bearing 17 is installed at one end of the screw 13 located in the flywheel 1, then the other blade part of the hinge installed at the lower part of the side of the steel sheet 15 facing the screw 13 is fixedly connected with the outer ring of the third bearing 17, so as to finish the hinged connection of the third bearing 17 and the steel sheet 15, wherein a gap exists between the steel sheet 15 and the thick plastic plate 12, and a gap exists between the steel sheet 15 and the side of the cover 14 facing the thick plastic plate 12, the gap is designed so that the steel sheet 15 inclines under the action of magnetic attraction force, a first rubber sheet 18 is adhered in a first groove 22 formed at the middle part of the lower surface of the steel sheet 15, a plurality of first clamping teeth 19 integrally formed with the first rubber sheet 18 are uniformly fixed at one side of the first rubber sheet 18 facing away from the steel sheet 15, and the depth of the first groove 22 is the same as the thickness of the first rubber sheet 18, so that the first latch 19 is positioned outside the first groove 22, a second rubber sheet 21 is stuck in a second groove 23 formed on one side of the thick plastic plate 12 facing the steel sheet 15 and far away from the round cover 2, wherein a plurality of second latches 20 which are matched with the first latch 19 and are integrally formed with the second rubber sheet 21 are fixed on one side of the second rubber sheet 21 facing the first rubber sheet 18 at equal intervals, the depth of the second groove 23 is the same as the thickness of the second rubber sheet 21, so that the second latch 20 is positioned outside the second groove 23, a third bearing 17 on the screw 13 is hinged with the steel sheet 15 by a hinge, when the permanent magnet 8 and the steel sheet 15 are mutually attracted, the steel sheet 15 is inclined, at the moment, the first latch 19 on the first rubber sheet 18 and the second latch 20 on the second rubber sheet 21 are mutually clamped, so that the steel sheet 15 does not move along the length direction of the screw 13, the screw 13 is prevented from loosening due to vibration during rotation of the flywheel 1, the structural stability is improved, and when a person applies great force to the screw 13, the first latch 19 and the second latch 20 can deform and stagger, so that the adjustment of the position of the steel plate 15 is not affected.

While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A magnetic control brake for flywheel (1) installed on body-building vehicle, its characterized in that: the flywheel (1) one side is the opening form, the dome (2) is installed through the screw to flywheel (1) opening face, be equipped with supporting disk (7) in flywheel (1), supporting disk (7) one side middle part position run through have with supporting disk (7) fixed connection's back shaft (3), the both ends of back shaft (3) all extend to dome (2) and flywheel (1) the space outside that forms, back shaft (3) and dome (2), flywheel (1) rotate to be connected, be annular equidistance on supporting disk (7) the annular side and install a plurality of permanent magnets (8), dome (2) are in the annular equidistance and have been seted up a plurality of screw holes (4) in the one side edge that is in flywheel (1), screw hole (4) are arranged along supporting shaft (3) length direction, screw (4) internal thread connection has screw rod (13), screw rod (13) are in the one end rotation that flywheel (1) is in be connected with steel sheet (15) that the dome (8) adsorbs, steel sheet (15) are installed at housing (14) sliding in housing (14) and one end fixed connection type U (14), two side surfaces of the steel sheet (15) adjacent to the screw (13) are respectively in sliding contact with two side surfaces parallel to each other in the housing (14), one surface of the housing (14) facing the supporting disc (7) is in an opening shape and is fixedly connected with the thick plastic plate (12), one end of the thick plastic plate (12) is fixedly connected with the round cover (2), the width of the thick plastic plate (12) is half of the width of the flywheel (1), one end of the screw (13) positioned in the flywheel (1) is provided with a third bearing (17), one lower part of the steel sheet (15) facing the screw (13) is provided with a hinge, the other blade part of the hinge is fixedly connected with the outer ring of the third bearing (17), a gap exists between the steel sheet (15) and the thick plastic plate (12), a gap exists between one surface of the thick plastic plate (12) facing the inner surface of the housing (14), a first rubber sheet (18) is arranged at the middle position under the steel sheet (15), one lower surface of the first rubber sheet (18) faces away from the first rubber sheet (15) and is uniformly far away from the first round cover (12), the first rubber sheet (21) is uniformly arranged on one side of the steel sheet (15) facing away from the first round cover (2), a plurality of second clamping teeth (20) matched with the first clamping teeth (19) are fixed on one surface of the second rubber sheet (21) facing the first rubber sheet (18) at equal intervals, and the second clamping teeth (20) and the second rubber sheet (21) are integrally formed.

2. A magnetically controlled brake according to claim 1, wherein: the middle part of the lower surface of the steel plate piece (15) is provided with a first groove (22), the first rubber piece (18) is stuck in the first groove (22), and the depth of the first groove (22) is the same as the thickness of the first rubber piece (18).

3. A magnetically controlled brake according to claim 1, wherein: the thick plastic plate (12) is provided with a second groove (23) at the position where the second rubber sheet (21) is arranged, the second rubber sheet (21) is stuck in the second groove (23), and the depth of the second groove (23) is the same as the thickness of the second rubber sheet (21).

4. A magnetically controlled brake according to claim 1, wherein: the annular side surface of the support disc (7) is provided with a plurality of notches (9) at equal intervals, and the permanent magnets (8) are arranged in the notches (9).

5. A magnetically controlled brake according to claim 1, wherein: the utility model discloses a flywheel, including jack (6) is worn to set up to supporting disk (7) one side middle part position, jack (6) is worn to set up to supporting shaft (3) and supporting shaft (3) are fixed in wearing jack (6), first round hole has been seted up to circular lid (2) one side middle part position, the flywheel (1) deviates from one side middle part position of circular lid (2) and has been seted up the second round hole, first round hole, second round hole have been run through respectively at the both ends of supporting shaft (3), first round hole inboard is equipped with first bearing (10), first bearing (10) outer lane and circular lid (2) fixed connection, first bearing (10) cover is established on supporting shaft (3), second round hole inboard is equipped with second bearing (11), second bearing (11) outer lane and flywheel (1) fixed connection, second bearing (11) cover is established on supporting shaft (3).

6. A magnetically controlled brake according to claim 5, wherein: the belt pulley (5) is arranged outside the second round hole, the belt pulley (5) is of a hollow structure, one end of the belt pulley (5) is fixedly connected with the flywheel (1), the belt pulley (5) and the flywheel (1) are concentrically arranged, and the supporting shaft (3) penetrates through the belt pulley (5) and is in sliding contact with the belt pulley (5).

7. A magnetically controlled brake according to claim 1, wherein: one end of the screw rod (13) positioned at the outer side of the flywheel (1) is fixedly connected with a knob head (16), the cross section of the knob head (16) is circular, and a plurality of bulges are uniformly machined on the outer surface of the knob head (16).