CN212789598U

CN212789598U - Body-building device and resistance and brake composite control structure thereof

Info

Publication number: CN212789598U
Application number: CN202020997398.1U
Authority: CN
Inventors: 许智勇
Original assignee: Dunyang Technology Co ltd
Current assignee: Dunyang Technology Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2021-03-26
Anticipated expiration: 2030-06-03

Abstract

The utility model relates to a body-building device and resistance and brake composite control structure thereof, which comprises a sleeve, a push rod, an elastic part, a composite operation part and a pushing part. The sleeve has an operating end and an active end. The push rod is arranged in the sleeve and can extend out from the action end. The elastic piece applies force to the push rod to endow the push rod with a reset elastic force facing the operation end. The composite operating member includes an operating portion and a screw having a pushing end extending into the sleeve. The pushing and supporting piece is arranged in the sleeve in a non-rotatable manner and is provided with a threaded hole, so that the screw rod can be screwed in the threaded hole. Rotating the operating part, the pushing part is stopped in the sleeve by the action of the reset elastic force, and the pushing end of the screw rotates to push the push rod; when the operating part is pushed, the screw and the pushing part synchronously push and feed to push the push rod.

Description

Body-building device and resistance and brake composite control structure thereof

Technical Field

The utility model relates to a body-building device and resistance and brake composite control structure thereof relies on the frictional force of the resistance unit of rotatory or the operation action control body-building device of pressing, makes the flywheel can adjust resistance or brake fast gradually.

Background

Taiwan publication No. I669141, "flywheel vehicle integrating brake and resistance adjustment mechanism", is a flywheel vehicle integrating brake and resistance adjustment mechanism, and includes a frame, a transmission wheel, a flywheel, and a resistance brake device. The driving wheel can be arranged on the frame. The flywheel can be made of metal material and is driven by the driving wheel to rotate. The resistance brake device can comprise a magnet assembly, a resistance adjusting seat, a control piece, a manual brake assembly and a resistance control assembly. The resistance adjusting seat can be connected with the frame. The magnet assembly can be pivoted on the resistance adjusting seat. The control member may be coupled to the magnet assembly. The manual brake component can be arranged on the handle position of the frame and comprises a brake handle and a brake control line. The resistance control assembly may include a motor, a control interface, and a resistance control coil.

In the above patent, the manual brake assembly controls the brake of the flywheel, and the resistance control assembly controls the resistance change of the flywheel, wherein the brake handle of the manual brake assembly mechanically operates the magnet assembly through the brake control line to obtain the braking effect, and the resistance control assembly electrically adjusts the number of resistance segments through the control interface. The structure completes the braking and resistance segment number adjustment in a mechanical and electric way, wherein the electric way needs to be executed by relying on the touch control operation panel alone, obviously, the structure is not completely integrated with the brake handle, so that when a user executes the braking and resistance adjustment operation, the operation positions are separated, and when the user operates the brake, the control is needed to be carried out by the brake handle; when the resistance is adjusted through operation, the control is required to be performed through the touch control operation panel, and the integration degree in operation is obviously poor.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a resistance and brake composite control structure, which comprises a sleeve, a push rod, an elastic part, a composite operation part and a pushing part. The sleeve includes an operation end and an action end. The push rod is arranged in the sleeve and can extend out from the action end. The elastic piece is arranged in the sleeve, applies force to the push rod and endows the push rod with a reset elastic force facing the operation end. The composite operation piece comprises an operation part and a screw rod, the composite operation piece is arranged at the operation end, the screw rod extends into the sleeve, and the screw rod is provided with a pushing end. The pushing and abutting piece is arranged in the sleeve in a non-rotatable manner and is provided with a threaded hole, and the screw rod is screwed in the threaded hole. Rotating the operating part, the pushing part is stopped in the sleeve by the action of the reset elastic force, the screw rotates relative to the pushing part, and the pushing end rotates to push the push rod; when the operating part is pushed, the screw and the pushing part synchronously push and feed to push the push rod.

Furthermore, a clamping piece is fixed in the sleeve and is blocked on a rotating path of the pushing and abutting piece, so that the pushing and abutting piece is arranged in the sleeve in a non-rotatable manner.

Furthermore, the sleeve is provided with a round hole, the clamping piece is provided with another threaded hole, and a fixing piece penetrates through the round hole and is in threaded connection with the clamping piece to fix the clamping piece in the sleeve.

Furthermore, an inner edge of the sleeve is a non-circular cross-sectional profile, and a cross-sectional profile of the pushing member corresponds to the cross-sectional profile.

Furthermore, the resistance unit and the flywheel are assembled on the body-building device, the pushing part drives the resistance unit and controls the resistance unit to gradually contact or gradually leave the flywheel.

Furthermore, a flange is arranged on one side of the push rod facing the operation end, a nut is screwed on the action end of the sleeve, the nut is provided with a through hole, the push rod extends out of the action end from the through hole, the elastic piece is a spring, the spring is sleeved on the push rod, and two ends of the spring respectively abut against the flange and the nut.

The utility model provides a body-building device with resistance and brake combined control structure, including a fitness equipment body, a resistance unit, a flywheel and a resistance and brake combined control structure. The resistance unit is movably assembled on the body-building device body. The flywheel is rotatably assembled on the body of the body-building device. The resistance and brake composite control structure comprises a sleeve, a push rod, an elastic piece, a composite operation piece and a pushing piece. The sleeve includes an operation end and an action end. The push rod is arranged in the sleeve and can extend out from the action end. The elastic piece is arranged in the sleeve, applies force to the push rod and endows the push rod with a reset elastic force facing the operation end. The composite operation piece comprises an operation part and a screw rod, the composite operation piece is arranged at the operation end, the screw rod extends into the sleeve, and the screw rod is provided with a pushing end. The pushing and abutting piece is arranged in the sleeve in a non-rotatable manner and is provided with a threaded hole, and the screw rod is screwed in the threaded hole. The operating part is rotated, the pushing part is stopped in the sleeve under the action of the reset elastic force, the screw rod rotates relative to the pushing part, the pushing end rotates to push the push rod, and the push rod pushes the resistance unit, so that the resistance unit generates a rotating resistance to the flywheel. When the operating part is pushed, the screw rod and the pushing part synchronously push and feed to push the push rod, and the push rod pushes against the resistance unit, so that the resistance unit generates brake resistance to the flywheel.

Furthermore, the resistance unit comprises a spring plate, a pivot piece, a seat body and a friction plate, wherein the spring plate is provided with a fixed end and a free end, the fixed end is fixed on the body of the body builder, the pivot piece is fixed on the free end, the seat body is pivoted on the pivot piece, and the friction plate is fixed on the seat body; the push rod pushes the pivot piece or the elastic sheet to make the friction plate contact with the flywheel, and the elastic sheet provides a restoring force towards the sleeve to the seat body.

Furthermore, the pivot joint piece is provided with a gap, and the push rod passes through the gap and abuts against the elastic sheet.

According to the technical characteristics, the following effects can be achieved:

1. the pushing and supporting piece of the utility model can axially displace in the sleeve but can not rotate in the sleeve, and the push rod can be driven to slowly feed in the axial direction through the rotary composite operating piece, so that the resistance unit can generate the function of adjusting the resistance to the flywheel; by pressing the composite operating piece, the push rod can be driven to quickly feed in the axial direction, so that the resistance unit can quickly brake the flywheel.

2. The utility model discloses the structure integration that will adjust resistance and quick brake is the control structure of a combined type, and it is more intuitive to operate, and is also more convenient, and adjustment resistance and quick brake all can rely on compound operating parts to accomplish.

Drawings

Fig. 1 is a perspective view of the resistance and brake composite control structure of the present invention.

Fig. 2 is a perspective exploded view of the resistance and brake composite control structure of the present invention.

Fig. 3 is a perspective view of the exercise device and its resistance and brake composite control structure.

Fig. 4 is a connection diagram of the exercise device and the resistance and brake composite control structure thereof.

Fig. 5 is a cross-sectional view of the resistance and brake composite control structure of the exercise device of the present invention.

Fig. 6 is a schematic diagram of the resistance and braking composite control structure of the present invention for adjusting the resistance.

Fig. 7 is a brake actuation schematic diagram of the resistance and brake composite control structure of the present invention.

Fig. 8 is a cross-sectional view of the pushing member and the clamping member in the operation end of the present invention.

Fig. 9 is a polygonal cross-sectional view of the sleeve and the pushing member in the operation end of the present invention.

Fig. 10 is a schematic view of the push rod of the present invention pushing against the elastic sheet through the notch.

Fig. 11 is a schematic view of the push rod of the present invention pushing against the pivot member.

Description of reference numerals: 1-resistance and brake composite control structure; 2-a sleeve; 2A-a sleeve; 21-an operation end; 22-an active end; 23-a clip; 231-a first threaded hole; 232-arc surface; 233-plane; 24-a screw cap; 241-punching; 25-round hole; 26-a fixing member; 3-a push rod; 3B-a push rod; 31-a flange; 4-an elastic member; 5-a composite operating member; 51-an operating part; 52-a screw; 52A-screw; 521-push-against end; 6-pushing against the piece; 6A-a pushing part; 61-a second threaded hole; 62-blocking surface; 7-a resistance unit; 7B-a resistance unit; 71-friction plate; 72-connecting block; 73-spring plate; 73B-a spring plate; 731-fixed end; 732-free end; 74-a pivot; 74B-a pivot; 741-notch; 742-a first stop; 743-a second stop; 8-a flywheel; 9-a stepping part; 91-crank; 92-a pedal; 93-a belt; 94-a pulley; 0-body building device body; a-a rotational path; d-spacing.

Detailed Description

By combining the above technical features, the main functions of the exercise device and the combined resistance and brake control structure of the exercise device of the present invention will be clearly demonstrated in the following embodiments.

Referring to fig. 1 and fig. 2, the resistance and brake composite control structure 1 of the present embodiment includes a sleeve 2, a push rod 3, an elastic member 4, a composite operation member 5, and a pushing member 6. The sleeve 2 includes an operation end 21, an action end 22, a fastener 23, a nut 24, a circular hole 25 and a fixing member 26, the fixing member 26 is a screw in this embodiment, the fastener 23 is disposed in the sleeve 2, the fastener 23 has a first threaded hole 231, the first threaded hole 231 corresponds to the circular hole 25, the fixing member 26 passes through the circular hole 25 and is screwed into the first threaded hole 231 to fix the fastener 23 on the operation end 21 of the sleeve 2, the fastener 23 has an arc 232 and a plane 233, wherein the arc 232 is closely attached to the inner wall of the sleeve 2, and the plane 233 faces the axial direction of the sleeve 2. The pushing-against part 6 is disposed in the operation end 21 of the sleeve 2, and the pushing-against part 6 has a second threaded hole 61, the pushing-against part 6 is generally cylindrical, a blocking surface 62 is formed on the circumference of the pushing-against part 6, and the plane 233 of the clamping part 23 abuts against the blocking surface 62 to limit the rotation of the pushing-against part 6 in the sleeve 2. The composite operation element 5 includes an operation portion 51 and a screw 52, the screw 52 extends from the operation portion 51, and a pushing end 521 is provided at an end of the screw 52, the composite operation element 5 is disposed at the operation end 21, wherein the screw 52 extends into the sleeve 2 and is screwed into the second threaded hole 61. The push rod 3 is disposed in the sleeve 2, and one end of the push rod 3 facing the operation end 21 has a flange 31, the flange 31 abuts against the abutting member 6, and the other end of the push rod 3 extends from the operation end 22. The elastic element 4 is disposed in the sleeve 2, one end of the elastic element 4 abuts against the flange 31 of the push rod 3, the nut 24 is locked to the action end 22 of the sleeve 2, so that the other end of the elastic element 4 abuts against the nut 24, and the nut 24 has a through hole 241 so that the push rod 3 can pass through the through hole 241 and extend out from the action end 22. When the push rod 3 applies a force to the elastic member 4, the elastic member 4 will give a restoring elastic force to the push rod 3 toward the operation end 21.

Referring to fig. 3 to 5, the exercise device of the present embodiment is provided with the resistance and brake composite control structure 1 installed on an exercise machine body 0, and the exercise device of the present embodiment is exemplified by an exercise bike, and the exercise device includes a resistance unit 7, a flywheel 8 and a treading portion 9. The resistance unit 7 has a friction plate 71, a seat 72, a spring plate 73 and a pivot 74, the friction plate 71 is connected to the seat 72, the friction plate 71 is made of wool felt, the seat 72 is pivoted to the pivot 74, the spring plate 73 has a fixed end 731 and a free end 732, the fixed end 732 is fixed to the body 0 of the exercise device, the pivot 74 is fixed to the free end 732, and the spring plate 73 is located between the pivot 74 and the acting end 22 of the cylinder 2. Referring to fig. 10, the pivot 74 has a gap 741, the gap 741 has a first stopping portion 742 and a second stopping portion 743, a distance D exists between the first stopping portion 742 and the second stopping portion 743, the push rod 3 abuts against the resilient plate 73 corresponding to the gap 741, the push rod 3 can move in the distance D, and the gap 741 prevents the push rod 3 from slipping during operation. By pushing the push rod 3 against the pivot 74, the friction plate 71 can be driven to contact the flywheel 8. Referring to fig. 3 to 5, the stepping portion 9 is disposed on the body 0, the stepping portion 9 has a crank 91, a pedal 92, a belt 93 and a belt pulley 94, the belt pulley 94 is connected to the crank 91, the crank 91 is connected to the pedal 92, the belt 93 is connected to the belt pulley 94, and the belt 93 transmits power to the flywheel 8.

Referring to fig. 5 and 6, when the operator steps on the exercise machine body 0, the pedal 92 drives the crank 91 to rotate the pulley 94, the pulley 94 rotates the flywheel 8 via the belt 93, and the friction plate 71 is controlled to approach or separate from the flywheel 8 in a state where the friction plate 71 contacts the flywheel 8, so as to change the resistance of the flywheel 8 to rotate, thereby adjusting the exercise intensity. In this embodiment, when the operating portion 51 is rotated clockwise, the screw 52 will relatively rotate on the abutting member 6, since the abutting member 6 is restricted by the clamping member 23 and cannot rotate in the sleeve 2, the abutting member 6 will slightly move along the axial direction of the sleeve 2 in a manner of screw feeding, the abutting end 521 screwed out by the abutting member 6 will press the push rod 3 downwards, the flange 31 of the push rod 3 presses one end of the elastic member 4 downwards, the other end of the elastic member 4 is abutted by the nut 24, the push rod 3 will extend out of the nut 24 and press the elastic sheet 73 downwards, so that the pivot member 74, the seat 72 and the friction sheet 71 move towards the flywheel 8, and the friction sheet 71 contacts the flywheel 8 to generate a rotational resistance force for the flywheel 8, which provides a resistance force for a user to exercise. In the above operation, the more the friction plate 71 abuts against the flywheel 8 by rotating the operating portion 51 clockwise, the greater the rotational resistance of the flywheel 8; the more the operating portion 51 is rotated counterclockwise, the less the friction plate 71 is loosened to abut against the flywheel 8, and the less the rotation resistance of the flywheel 8 is.

Referring to fig. 7, when the training is to be stopped, the operating portion 51 is directly pressed, the screw 52 drives the pushing member 6 to synchronously and rapidly move downward along the axial direction of the sleeve 2, the push rod 3 is directly driven in a linear feeding manner, one side of the elastic member 4 is pressed downward by the flange 31, the other side of the elastic member is supported by the nut 24, the push rod 3 extends out of the nut 24 and presses the elastic piece 73 downward, so that the pivot member 74, the seat 72 and the friction plate 71 rapidly move toward the flywheel 8, when the friction plate 71 contacts the flywheel 8, a braking resistance is generated to the flywheel 8, the braking resistance is sufficient to rapidly reduce the rotation speed of the flywheel 8 and even stop the rotation, and an operator does not need to wait for the flywheel 8 to naturally rotate and stop. When the operating portion 51 is released after the braking is completed, the spring 4 pushes the push rod 3 in a direction away from the flywheel 8, and the push rod 3 simultaneously pushes the urging member 6 and the composite operating element 5 back to the positions before the operation. When the push rod 3 moves away from the flywheel 8, the elastic force of the elastic piece 73 also makes the pivot member 74, the seat 72 and the friction plate 71 move away from the flywheel 8.

Referring to fig. 6, the present invention is characterized in that the composite operation member 5 selectively pushes the push rod 3 by means of a rotation or pressing manner, and controls the push rod 3 to extend slowly or rapidly from the action end 22, wherein the slow movement extends for adjusting the resistance of the flywheel 8, and the rapid movement extends for controlling the brake of the flywheel 8. The shape of the pushing element 6 can be different according to the inner edge of the sleeve 2, please refer to fig. 8, in this embodiment, the inner edge of the sleeve 2 is circular, the fastener 23 is fixed in the sleeve 2 by the fixing element 26, and blocks a rotation path a of the pushing element 6, so that the pushing element 6 cannot rotate.

As shown in fig. 9, the inner edge of the sleeve 2A has a non-circular cross-sectional profile, and when the cross-sectional profile is an ellipse or a polygon, the embodiment of fig. 9 is a pentagonal shape, and the cross-sectional profile of the pushing-against part 6A corresponds to the cross-sectional profile, and is also a pentagonal shape, so that the pushing-against part 6A cannot rotate in the rotation path a and is fixed in the sleeve 2A.

As shown in fig. 10, when the pivot 74 in the resistance unit 7 has the gap 741, the pushing rod 3 abuts against the elastic sheet 73, and the pushing rod 3 can limit the displacement of the pushing rod 3 in the gap D by the first stopping portion 742 and the second stopping portion 743. Fig. 11 shows another embodiment of the resistance unit 7B, the pivot 74B of the resistance unit 7B has no gap, and the push rod 3B can still directly abut against the pivot 74B.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A resistance and brake composite control structure, comprising:

a sleeve having an operation end and an action end;

a push rod arranged in the sleeve, the push rod can extend out from the action end;

the elastic piece is arranged in the sleeve, applies force to the push rod and endows the push rod with a reset elastic force facing the operation end;

the composite operating piece comprises an operating part and a screw rod, the composite operating piece is arranged at the operating end, the screw rod extends into the sleeve, and the screw rod is provided with a pushing end;

a pushing-against piece, which is non-rotatably arranged in the sleeve and is provided with a threaded hole, and the screw rod is screwed in the threaded hole;

rotating the operating part, the pushing part is stopped in the sleeve by the action of the reset elastic force, the screw rotates relative to the pushing part, and the pushing end rotates to push the push rod; when the operating part is pushed, the screw and the pushing part synchronously push and feed to push the push rod.

2. The composite control structure of resistance and brake as claimed in claim 1, wherein a clip is fixed in the sleeve to block a rotation path of the urging member, so that the urging member is non-rotatably disposed in the sleeve.

3. The resistance and brake combination control structure according to claim 2, wherein the sleeve has a circular hole, the clip member has another threaded hole, and a fixing member passes through the circular hole and is threadedly engaged with the clip member to fix the clip member in the sleeve.

4. The resistance and brake combination control structure of claim 1, wherein an inner edge of the sleeve has a non-circular cross-sectional profile, and a cross-sectional profile of the urging member corresponds to the cross-sectional profile.

5. The resistance and braking composite control structure as claimed in claim 1, wherein: the resistance unit and the flywheel are assembled on a body-building device, and the pushing part can drive the resistance unit to control the resistance unit to gradually contact or gradually leave the flywheel.

6. The resistance and brake combination control structure as claimed in claim 1, wherein the side of the push rod facing the operation end has a flange, the action end of the sleeve is screwed with a nut, the nut has a through hole, the push rod extends out of the action end through the through hole, the elastic member is a spring, the spring is sleeved on the push rod, and two ends of the spring respectively abut against the flange and the nut.

7. An exercise device having a resistance and braking combination control configuration, comprising:

a body-building device body;

a resistance unit movably assembled to the body-building device body;

a flywheel rotatably assembled on the body-building device;

a sleeve, arranged on the body-building device body and comprising an operation end and an action end;

rotating the operating part, the pushing part is stopped in the sleeve by the action of the reset elastic force, the screw rotates relative to the pushing part, the pushing end rotates to push the push rod, and the push rod pushes against the resistance unit, so that the resistance unit generates a rotating resistance to the flywheel;

when the operating part is pushed, the screw rod and the pushing part synchronously push and feed to push the push rod, and the push rod pushes against the resistance unit, so that the resistance unit generates brake resistance to the flywheel.

8. The exercise apparatus with combined resistance and brake control structure as claimed in claim 7, wherein a clip is fixed in the sleeve to block a rotation path of the urging member, so that the urging member is non-rotatably disposed in the sleeve.

9. An exercise device having a resistance and brake combination control structure as claimed in claim 8 wherein said sleeve has a circular hole and said fastener has a threaded hole, and a fastener passes through said circular hole and engages said fastener to secure said fastener within said sleeve.

10. The exercise apparatus according to claim 7, wherein the sleeve has an inner edge with a non-circular cross-sectional profile, and the pushing member has a cross-sectional profile corresponding to the cross-sectional profile.

11. The exercise device with combined resistance and brake control as claimed in claim 7, wherein the side of the push rod facing the operation end has a flange, the action end of the sleeve is screwed with a nut having a through hole, the push rod extends out of the action end from the through hole, the elastic member is a spring, the spring is sleeved on the push rod, and two ends of the spring respectively abut against the flange and the nut.

12. The exercise apparatus according to claim 7, wherein the resistance unit comprises a resilient plate, a pivot member, a seat and a friction plate, the resilient plate has a fixed end and a free end, the fixed end is fixed to the body of the exercise apparatus, the pivot member is fixed to the free end, the seat is pivoted to the pivot member, and the friction plate is fixed to the seat; the push rod pushes the pivot piece or the elastic sheet to make the friction plate contact with the flywheel, and the elastic sheet provides a restoring force towards the sleeve to the seat body.

13. The exercise device with the combined resistance and brake control structure as claimed in claim 12, wherein the pivot member has a notch, and the push rod passes through the notch and abuts against the resilient plate.