CN203235181U

CN203235181U - Resistance adjusting device

Info

Publication number: CN203235181U
Application number: CN 201320256459
Authority: CN
Inventors: 张志杰
Original assignee: NINGBO DETAI MACHINERY INDUSTRIAL Co Ltd
Current assignee: NINGBO DETAI MACHINERY INDUSTRIAL Co Ltd
Priority date: 2013-05-13
Filing date: 2013-05-13
Publication date: 2013-10-16
Anticipated expiration: 2023-05-13

Abstract

The utility model discloses a resistance adjusting device. The resistance adjusting device comprises a support (1) provided with a rotatable friction piece (2). One end of the friction piece (2) is connected with a counterweight wheel (101). The other end of the friction piece (2) is connected with an aluminum ring (7). The aluminum ring (7) is installed between a first magnet fixing ring (5) and a second magnet fixing ring (6). Opposite sides of the first magnet fixing ring (5) and the second magnet fixing ring (6) are provided with a plurality of first magnets (501) and a plurality of second magnets (601) respectively, wherein the first magnets (501) and the second magnets (601) are arranged at intervals in a one-to-one correspondence mode, and an adjusting structure is used for making the first magnet fixing ring (5) and the second magnet fixing ring (6) rotate relatively and be locked. The resistance adjusting device can make resistance to motion keep unchanged for a long time and make the preset resistance to motion be free of errors.

Description

Drag regulator

Technical field

The utility model relates to a kind of drag regulator.

Background technology

In order to adapt to different physique and unequally loaded needs, the bicycle that body-building is used generally all is provided with drag regulator, a kind of drag regulator is arranged at present, it cooperates to come the adjustment movement resistance by what be installed in brake ribbon and weighting distribution wheel on the base, namely the wheel of bicycle is positioned on the friction member, friction member is connected with weighting distribution wheel and rotates synchronously, wheel can be with dynamic friction piece to rotate during cycling, that is to say that friction member can provide the resistance of motion to wheel, and the resistance of motion of friction member is provided by weighting distribution wheel, brake ribbon is set on the excircle of weighting distribution wheel, one end of brake ribbon is fixed on the base, the other end of brake ribbon is connected on the rocking arm, when needs increase the resistance of motion, by rocking arm brake ribbon is tightened, the spin friction power of weighting distribution wheel is increased, thereby reach the purpose of regulating the cycling resistance, otherwise can reduce the resistance of motion of bicycle, this drag regulator has the following disadvantages: during owing to cycling, can produce frictional force between weighting distribution wheel and the brake ribbon, can make brake ribbon produce wearing and tearing, thereby can reduce the spin friction power of weighting distribution wheel, the resistance of motion of bicycle is reduced, thereby the resistance of motion of bicycle is remained unchanged for a long time, make the predetermined resistance of motion can produce error.

The utility model content

Technical problem to be solved in the utility model is, provides the resistance of motion is remained unchanged for a long time, makes the predetermined resistance of motion can not produce the drag regulator of error.

For solving the problems of the technologies described above, the drag regulator that the utility model provides, it comprises support, rotatable friction member is installed on the support, one end of friction member is connected with weighting distribution wheel, base and lid also are installed on the support, base and lid are interlocked, the first magnet retainer ring is installed on the inner bottom surface of base, the inner ring of the first magnet retainer ring is provided with the second magnet retainer ring, the second magnet retainer ring is fixed on the inner bottom surface of lid, the inner surface of the first magnet retainer ring is provided with along circumferential several first magnet spaced apart, the outer surface of the second magnet retainer ring be provided with several along circumferentially spaced apart and with several first magnet the second magnet of corresponding setting one by one, be formed with magnetic field between the first magnet retainer ring and the second magnet retainer ring, be provided with the aluminium ring between the first magnet retainer ring and the second magnet retainer ring, the other end of aluminium ring and friction member is in transmission connection, and base is connected with the governor motion that can make the first magnet retainer ring and the second magnet retainer ring relatively rotate and lock.

Operation principle of the present utility model is as follows: the wheel of bicycle is placed on the friction member, wheel can be with dynamic friction piece to rotate during cycling, that is to say that friction member can provide the resistance of motion to wheel, and friction member is connected with the aluminium ring, when needs increase the resistance of motion, by relatively rotating of the first magnetic receiver and the second magnetic receiver, make each first magnet close until just relative gradually with the second corresponding magnet positions, magnetic field between the second magnet of each first magnet and correspondence strengthens gradually at this moment, when each first magnet and corresponding the second magnet positions are just relative, magnetic field is the strongest, and magnetic field is stronger, the resistance that the aluminium ring is subject to when rotating in magnetic field is just larger, the resistance that is subject to when the aluminium ring is rotated in magnetic field increases gradually, thereby the resistance of motion of friction member is increased gradually, and resistance increases gradually when making the wheel movement of bicycle; Otherwise, if reduce the resistance of motion, as long as each first magnet and the second corresponding magnet positions are staggered gradually, this moment, weakened gradually in magnetic field, the resistance that is subject to when the aluminium ring is rotated in magnetic field reduces gradually, thereby the resistance of motion of friction member is reduced gradually, and resistance reduces gradually when making the wheel movement of bicycle.

After adopting above structure, the utility model compared with prior art has advantages of following:

Because the adjusting of resistance is strong and weak by changing magnetic field, the bicycle prolonged exercise can not change the magnetic field power, thereby can not change owing to the bicycle prolonged exercise resistance of motion of aluminium ring, the resistance of motion can be remained unchanged for a long time, make the predetermined resistance of motion can not produce error.

As improvement, described governor motion comprises the adjusting line, knob base and knob lid, knob base and knob lid are interlocked, knob base is provided with the adjusting knob of adjustment disk and controllable adjustable disc spins, the upper surface of adjusting knob and adjustment disk is circumferentially spacing, the lower surface of adjustment disk is provided with along circumferential several detents spaced apart, be provided with two back stops and two alignment pins between knob lid and the knob base, the lower end of two back stops is all fixed with the medial surface of knob lid, the upper end of two back stops offsets with the lower end of two alignment pins respectively, all match with several detents in the upper end of two alignment pins, an end of regulating line is connected with the periphery of adjustment disk, the other end of regulating line is connected with the periphery of the first magnet retainer ring, and the first magnet retainer ring is rotating to be installed on the base; Driving the first magnet retainer ring by the rotation adjusting knob rotates, thereby change the relative position of the second magnet of the first magnet and correspondence, thereby it is strong and weak to change magnetic field, whenever driving knob base, adjusting knob rotates a certain angle, alignment pin will snap in the corresponding detent, make knob base locked, the anglec of rotation of knob base can better be controlled, the anglec of rotation of the first magnet retainer ring can better be controlled, so that the relative position of the first magnet and corresponding the second magnet can better be controlled, the magnetic field power can better be controlled, thereby the resistance of motion can better be controlled.

Description of drawings

Fig. 1 is blast structural representation of the present utility model;

Fig. 2 is cutaway view of the present utility model (resistance adjustment mechanism does not show in the drawings).

Wherein, 1, support; 101, weighting distribution wheel; 2, friction member; 3, base; 4, lid; 5, the first magnet retainer ring; 501, the first magnet; 6, the second magnet retainer ring; 601, the second magnet; 7, aluminium ring; 8, knob base; 9, knob lid; 10, adjustment disk; 1001, detent; 11, adjusting knob; 12, back stop; 13, alignment pin; 14, regulate line.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in more detail.

By Fig. 1, shown in Figure 2, the utility model drag regulator comprises support 1, rotatable friction member 2 is installed on the support 1, one end of friction member 2 is connected with weighting distribution wheel 101, friction member 2 is equipped with bearing with the junction of weighting distribution wheel 101, described support 1 is provided with base 3 and lid 4, base 3 and lid 4 are interlocked, the first magnet retainer ring 5 is installed on the inner bottom surface of base 3, the inner ring of the first magnet retainer ring 5 is provided with the second magnet retainer ring 6, the second magnet retainer ring 6 is fixed on the inner bottom surface of lid 4, the first magnet retainer ring 5 and the second magnet retainer ring 6 are the aluminium ring, the first magnet retainer ring 5 and the second magnet retainer ring 6 are coaxially set, the inner surface of the first magnet retainer ring 5 is provided with along equally distributed six the first magnet 501 in circumferential interval, the outer surface of the second magnet retainer ring 6 be provided with circumferential interval, six edges equally distributed and with six the first magnet 501 the second magnet 601 of corresponding setting one by one, be formed with magnetic field between the first magnet retainer ring 5 and the second magnet retainer ring 6, be provided with aluminium ring 7 between the first magnet retainer ring 5 and the second magnet retainer ring 6,3 the end face in the close end of aluminium ring 6 is provided with base plate, the other end of friction member 2 is connected with the base plate of aluminium ring 6, friction member 2 rotates synchronously with aluminium ring 6, and base 3 is connected with the governor motion that can make the first magnet retainer ring 5 and the second magnet retainer ring 6 relatively rotate and lock.

Described governor motion comprises regulates line 14, knob base 8 and knob lid 9, knob base 8 and knob lid 9 are interlocked, knob base 8 is provided with the adjusting knob 11 of adjustment disk 10 and 10 rotations of controllable adjustable dish, the upper surface of adjusting knob 11 and adjustment disk 10 is circumferentially spacing, the lower surface of adjustment disk 10 is provided with along equally distributed several detents 1001 in circumferential interval, be provided with two back stops 12 and two alignment pins 13 between knob lid 9 and the knob base 8, the lower end of two back stops 12 is all fixed with the medial surface of knob lid 9, the upper end of two back stops 12 offsets with the lower end of two alignment pins 13 respectively, all match with several detents 1001 in the upper end of two alignment pins 13, that is to say whenever knob base 10 rotates a certain angle, corresponding two detents 1001 just engage with two alignment pins 13, an end of regulating line 14 is connected with the periphery of adjustment disk 10, the other end of regulating line 14 is connected with the periphery of the first magnet retainer ring 5, the first magnet retainer ring 5 rotating being installed on the base 3, adjustment disk 10 drives 5 rotations of the first magnet retainer ring by regulating line 14, closes the relative position of corresponding the second magnet 601 to change the first magnet 501.

Claims

1. drag regulator, it comprises support (1), rotatable friction member (2) is installed on the support (1), one end of friction member (2) is connected with weighting distribution wheel (101), it is characterized in that: base (3) and lid (4) also are installed on the support (1), base (3) and lid (4) are interlocked, the first magnet retainer ring (5) is installed on the inner bottom surface of base (3), the inner ring of the first magnet retainer ring (5) is provided with the second magnet retainer ring (6), the second magnet retainer ring (6) is fixed on the inner bottom surface of lid (4), the inner surface of the first magnet retainer ring (5) is provided with along circumferential several first magnet (501) spaced apart, the outer surface of the second magnet retainer ring (6) be provided with several along circumferentially spaced apart and with several first magnet (501) second magnet (601) of corresponding setting one by one, be formed with magnetic field between the first magnet retainer ring (5) and the second magnet retainer ring (6), be provided with aluminium ring (7) between the first magnet retainer ring (5) and the second magnet retainer ring (6), aluminium ring (6) is in transmission connection with the other end of friction member (2), and base (3) is connected with the governor motion that can make the first magnet retainer ring (5) and the second magnet retainer ring (6) relatively rotate and lock.

2. drag regulator according to claim 1, it is characterized in that: described governor motion comprises regulates line (14), knob base (8) and knob lid (9), knob base (8) and knob lid (9) are interlocked, knob base (8) is provided with the adjusting knob (11) of adjustment disk (10) and controllable adjustable dish (10) rotation, the upper surface of adjusting knob (11) and adjustment disk (10) is circumferentially spacing, the lower surface of adjustment disk (10) is provided with along circumferential several detents (1001) spaced apart, be provided with two back stops (12) and two alignment pins (13) between knob lid (9) and the knob base (8), the lower end of two back stops (12) is all fixed with the medial surface of knob lid (9), the upper end of two back stops (12) offsets with the lower end of two alignment pins (13) respectively, all match with several detents (1001) in the upper end of two alignment pins (13), an end of regulating line (14) is connected with the periphery of adjustment disk (10), the other end of regulating line (14) is connected with the periphery of the first magnet retainer ring (5), and the first magnet retainer ring (5) is rotating to be installed on the base (3).