CN214913016U

CN214913016U - Resistance device

Info

Publication number: CN214913016U
Application number: CN202120725770.8U
Authority: CN
Inventors: 不公告发明人
Original assignee: Beijing Mitao Zhilian Technology Co ltd
Current assignee: Xiamen Lingdong Intelligent Technology Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-11-30
Anticipated expiration: 2031-04-09

Abstract

The utility model provides a resistance device, including resistance source, the capstan winch, first stay cord and reset assembly, the capstan winch is connected with the output in resistance source, reset assembly includes the wind spring and the cylinder of coaxial setting, the top in resistance source is erect to wind spring and cylinder, and the cylinder sets firmly in the outer fringe of wind spring, the both ends of first stay cord set firmly in cylinder and capstan winch surface respectively, so that can drive the wind spring energy storage when the capstan winch is driven, can make the capstan winch reset during the wind spring release, and the working radius of cylinder is greater than the working radius of capstan winch. When the winch rotates for one circle, the center of the coil spring does not need to rotate for one circle, so that the stretching distance of the third pull rope is not limited by the coil spring; the wire arranging mechanism and the second pull rope are arranged and play a role of guiding the third pull rope, so that the third pull rope can be orderly wound on the winch; a position sensor is additionally arranged to detect the telescopic distance of the third pull rope.

Description

Resistance device

Technical Field

The utility model belongs to the technical field of the motor resistance equipment, concretely relates to resistance device.

Background

The motor resistance device is auxiliary exercise equipment which utilizes a motor to adjust the resistance, is commonly used in fitness equipment, in the prior art, a known motor resistance device mainly comprises a servo motor, a roller, a coupling and a pull rope wound on the roller, wherein the roller is pivoted on a chassis through a bearing seat, the servo motor is controlled by an existing servo controller and a computer, the device is connected with the roller through a coupler, can also realize the transmission connection between the servo motor and the roller through two transmission wheels of a transmission connection structure and a belt between the two transmission wheels, can make the roller rotate around a rotating shaft by pulling a pull rope, when the motor (generally a servo motor) is in a braking state, the resistance generated by the motor acts on the pull rope, the smaller the pulling force acting on the pull rope is, the smaller the resistance provided by the motor is, and on the contrary, the larger the resistance is, the resistance disappears when the pull rope is loosened, so that the process of physical exercise is realized by circularly and repeatedly pulling the pull rope.

However, the existing motor resistance device has the following defects: firstly, the stretching distance of the pull rope is limited, so that the use experience of a user is influenced; secondly, the pull rope is easy to be crossed and wound together, so that the function of the body-building equipment is invalid. The problem to be solved is to provide a resistance device which is not limited in stretching distance of a pulling rope and can orderly wind the pulling rope.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the stretching distance of the pull rope of the existing resistance device is limited, the pull rope is difficult to wind, the application provides a resistance device to solve the technical defect problem of the resistance device existing in the using process.

The utility model provides a resistance device, including resistance source, the capstan winch, first stay cord and reset assembly, the capstan winch is connected with the output in resistance source, reset assembly includes the wind spring and the cylinder of coaxial setting, the top in resistance source is erect to wind spring and cylinder, and the cylinder sets firmly in the outer fringe of wind spring, the both ends of first stay cord set firmly in cylinder and capstan winch surface respectively, so that can drive the wind spring energy storage when the capstan winch is driven, can make the capstan winch reset during the wind spring release, and the working radius of cylinder is greater than the working radius of capstan winch. When the winch rotates for one circle, the center of the coil spring does not need to rotate for one circle, so that the stretching distance of the third pull rope is not limited by the coil spring.

Preferably, the resistance device further comprises a first fixed pulley, one end of the first pull rope is fixedly arranged on the winch, and the other end of the first pull rope is fixedly arranged on the roller after bypassing the first fixed pulley. The direction of the first pull rope is changed and the first pull rope is smoothed out so as to avoid staggered winding.

Preferably, the resistance means further comprises a mounting bracket by which the coil spring and roller are mounted above the resistance source. Through a fixed bracket to mount the drum.

Preferably, the resistance device further comprises a wire arranging mechanism, the wire arranging mechanism comprises a sliding block and a guide rail, and the sliding block is slidably arranged on the guide rail in a penetrating manner.

Preferably, the resistance device further comprises a winding post, a fixed plate, a pulley block, a third fixed pulley and a second pull rope, wherein the pulley block comprises a second fixed pulley and a second movable pulley, the fixed plate is fixedly installed at the end part, which is not connected with the resistance source, of the winch, the winding post is convexly arranged on the end part, the second fixed pulley and the third fixed pulley are fixedly arranged on the fixed plate, and the second movable pulley is fixedly arranged on the sliding block.

Preferably, the resistance device further comprises a second pull rope, one end of the second pull rope is fixedly arranged on the winding post, and the other end of the second pull rope is fixedly arranged on the sliding block after sequentially passing around the third fixed pulley, the second fixed pulley and the second movable pulley. The wire arrangement mechanism, the pulley block, the third fixed pulley and the second pull rope are matched to avoid the third pull rope from winding in a staggered mode.

Further preferably, the resistance device further comprises a limiting block, and the limiting block is mounted on the periphery of the third fixed pulley and the second movable pulley. The movement of the second pull rope is further limited, so that the second pull rope is prevented from falling to influence the normal use of the wire arranging mechanism.

Preferably, the resistance device further comprises a third pull rope and a fourth fixed pulley, the fourth fixed pulley is fixedly arranged on the sliding block, one end of the third pull rope is wound on the winch, and the other end of the third pull rope is clamped into the fourth fixed pulley and protrudes out of the wire arranging mechanism. The third pull rope is driven to orderly wind on the winch through the sliding block.

Further preferably, the resistance device further comprises a housing covering the winch, and a position sensor mounted on the housing to detect a telescopic distance of the third rope.

Preferably, the source of resistance comprises one or more of a motor, a wind resistance, a magnetic resistance and a water resistance. The cost is reduced, and different resistance sources can be assembled by a manufacturer according to the requirements.

Compared with the prior art, the utility model discloses a beneficial achievement lies in:

the upper side of the resistance source is provided with a coil spring and a roller which are coaxial, two ends of the first pull rope are fixedly arranged on the surface of the roller and the surface of the winch respectively, so that the winch can drive the coil spring to store energy when being driven, the winch can reset when the coil spring is released, and the working radius of the roller is larger than that of the winch. When the winch rotates for one circle, the center of the coil spring does not need to rotate for one circle, so that the stretching distance of the pull rope is not limited by the coil spring; the wire arrangement mechanism is matched with the second pull rope to play a role of guiding the third pull rope, so that the third pull rope can be orderly wound on the winch; a position sensor is additionally arranged to detect the telescopic distance of the third pull rope.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and together with the description serve to explain the principles of the invention. Other embodiments and many of the intended advantages of embodiments will be readily appreciated as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale relative to each other. Like reference numerals designate corresponding similar parts.

FIG. 1 is a schematic illustration of a coil spring and capstan arrangement according to an embodiment of the present invention;

fig. 2 is an exploded view of a resistance device according to an embodiment of the present invention;

fig. 3 is a schematic overall structure diagram according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a housing according to an embodiment of the present invention.

The meaning of each number in the figure: 1-resistance source, 2-winch, 31-first pull rope, 32-second pull rope, 33-third pull rope, 4-coil spring, 5-roller, 61-first fixed pulley, 63-third fixed pulley, 64-fourth fixed pulley, 7-fixed bracket, 81-sliding block, 82-guide rail, 91-second fixed pulley, 92-second movable pulley, 10-winding post, 11-fixed plate, 12-limited block, 13-shell and 14-position sensor.

Detailed Description

In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. In this regard, directional terminology, such as "top," "bottom," "left," "right," "up," "down," etc., is used with reference to the orientation of the figures being described. Because components of embodiments can be positioned in a number of different orientations, the directional terminology is used for purposes of illustration and is in no way limiting. It is to be understood that other embodiments may be utilized and logical changes may be made without departing from the scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

The utility model provides a resistance device, fig. 1 shows the coil spring and capstan cooperating structure sketch map according to a specific embodiment of the utility model, as shown in fig. 1, this resistance device includes resistance source 1, capstan winch 2, first stay cord 31, third stay cord 33, reset assembly, first fixed pulley 61 and fixed bolster 7, capstan winch 2 is connected with the output of resistance source 1, reset assembly includes coaxial arrangement coil spring 4 (shown in fig. 2) and cylinder 5, coil spring 4 (shown in fig. 2) and cylinder 5 erect above resistance source 1 through fixed bolster 7, and cylinder 5 sets firmly in the outer fringe of coil spring 4, one end of first stay cord 31 sets firmly on capstan winch 2, the other end sets firmly on cylinder 5 after bypassing first fixed pulley 61, so that can drive coil spring 4 (shown in fig. 2) energy storage when capstan winch 2 is driven, can make capstan winch 2 reset when coil spring 4 releases, and the working radius of the drum 5 is larger than that of the winch 2. When the capstan 2 rotates one turn, the center of the coil spring 4 (shown in fig. 2) does not need to rotate one turn, so that the distance that the third pull rope 33 is stretched is not limited by the coil spring 4 (shown in fig. 2). The first fixed pulley 61 is provided to change the direction of the first cord 31 and to smooth the first cord 31 to prevent the cross winding. One end of the third pulling rope 33 is wound on the winch 2, and the third pulling rope 33 is automatically wound on the winch 2 through the cooperation of the coil spring 4 (shown in fig. 2) and the roller 5 with the winch 2.

Fig. 2 shows an exploded view of a resistance device according to an embodiment of the present invention, as shown in fig. 2, the resistance device further includes a wire arrangement mechanism, a pulley block, a winding post 10, a fixing plate 11, a third fixed pulley 63, a fourth fixed pulley 64, and a second pull rope 32, the wire arrangement mechanism includes a sliding block 81 and a guide rail 82, and the sliding block 81 is slidably disposed on the guide rail 82. The pulley block comprises a second fixed pulley 91 and a second movable pulley 92, a fixed plate 11 and a protruding winding post 10 are fixedly installed at the end part of the winch 2 which is not connected with the resistance source 1, the second fixed pulley 91 and a third fixed pulley 63 are fixedly arranged on the fixed plate 11, and the second movable pulley 92 is fixedly arranged on the sliding block 81. One end of the second pulling rope 32 is fixedly arranged on the winding post 10, and the other end of the second pulling rope is fixedly arranged on the sliding block 81 after sequentially passing around the third fixed pulley 63, the second fixed pulley 91 and the second movable pulley 92. The fourth fixed pulley 64 is fixedly arranged on the sliding block 81, one end of the third pull rope 33 is wound on the winch 2, and the other end is clamped into the fourth fixed pulley 64 and protrudes out of the wire arranging mechanism. The cooperation of the wire arrangement mechanism, the pulley block, the third fixed pulley 63 and the second pull rope 32 can avoid the disorder of the third pull rope 33 when the third pull rope is wound on the winch 2, and the sliding block 81 drives the third pull rope 33 to orderly wind on the winch 2.

With continued reference to fig. 2, the resistance device further includes a stopper 12, and the stopper 12 is mounted to the periphery of the third fixed sheave 63 and the second movable sheave 92. To further limit the movement of the second pulling rope 32, so as to prevent the second pulling rope 32 from falling off and affecting the normal use of the wire arranging mechanism.

Fig. 3 shows a schematic diagram of the overall structure of an embodiment of the present invention, as shown in fig. 3, in an embodiment, during the process of winding the third pulling rope 33 on the winch 2, the wrapping post 10 can be driven to loosen the second pulling rope 32 from the wrapping post 10, and the wire arranging mechanism moves to the side where the resistance source 1 is disposed, so that the length of the second pulling rope 32 between the second fixed pulley 91 and the second movable pulley 92 is gradually increased. Since the third rope 33 is engaged with the fourth fixed pulley 64 fixed to the sliding block 81, that is, the third rope 33 is linked with the wire arranging mechanism, the wire arranging mechanism can drive the third rope 33 to orderly wind on the winch 2.

Continuing to refer to fig. 3, one end of the first pulling rope 31 is fixedly disposed on the winch 2, and the other end of the first pulling rope is fixedly disposed on the drum 5 after passing around the first fixed pulley 61, when the user pulls the third pulling rope 33 with force, that is, in the process of unwinding the winch 2 by the third pulling rope 33, the coil spring 4 connected with the winch 2 through the second pulling rope 32 can be tightened, when the user stops applying force, under the effect of the elastic restoring force of the coil spring 4, the coil spring 4 can drive the drum 5 to unwind, so that the third pulling rope 33 is automatically wound on the winch 2 again, and automatic recovery is achieved. Also, since the diameter of the drum 5 is larger than that of the capstan 2, when the capstan 2 rotates one turn, the center of the coil spring 4 does not need to rotate one turn, so that the distance that the third pull rope 33 is pulled out is not limited by the coil spring 4.

Fig. 4 shows a schematic structural diagram of the housing according to an embodiment of the present invention, and as shown in fig. 4, the preferred resistance device further includes a housing 13 and a position sensor 14, the housing 13 covers the winch 2, and the position sensor 14 is installed inside the housing 13 and beside the third rope 33 for detecting the extension distance of the third rope 33. Preferably, the source of resistance 1 comprises one or more of a motor, a wind resistance, a magnetic resistance and a water resistance, so that a manufacturer can assemble different sources of resistance as required to reduce production costs and optimize equipment.

It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit and scope of the invention. In this way, if these modifications and changes are within the scope of the claims of the present invention and their equivalents, the present invention is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps than those listed in a claim. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. Any reference signs in the claims shall not be construed as limiting the scope.

Claims

1. The resistance device is characterized by comprising a resistance source, a winch, a first pull rope and a reset assembly, wherein the winch is connected with the output end of the resistance source, the reset assembly comprises a coil spring and a roller which are coaxially arranged, the coil spring and the roller are erected above the resistance source, the roller is fixedly arranged at the outer edge of the coil spring, two ends of the first pull rope are fixedly arranged on the surface of the roller and the surface of the winch respectively, so that the winch can drive the energy storage coil spring when being driven, the winch can be reset when the coil spring is released, and the working radius of the roller is larger than the working radius of the winch.

2. The resistance device of claim 1, further comprising a first fixed pulley, wherein one end of the first pull rope is fixed to the winch, and the other end of the first pull rope is fixed to the drum after passing around the first fixed pulley.

3. The resistance assembly of claim 1, further comprising a mounting bracket by which said coil spring and said roller are mounted above said resistance source.

4. The resistance device of claim 1, further comprising a wire management mechanism, wherein the wire management mechanism comprises a slider and a guide rail, and the slider is slidably disposed through the guide rail.

5. The resistance device according to claim 4, further comprising a winding post, a fixed plate, a pulley block and a third fixed pulley, wherein the pulley block comprises a second fixed pulley and a second movable pulley, the end of the winch not connected to the resistance source is fixedly provided with the fixed plate and the winding post is protruded, the second fixed pulley and the third fixed pulley are fixedly arranged on the fixed plate, and the second movable pulley is fixedly arranged on the sliding block.

6. The resistance device according to claim 5, further comprising a second pulling rope, wherein one end of the second pulling rope is fixedly arranged on the winding post, and the other end of the second pulling rope is fixedly arranged on the sliding block after sequentially passing around the third fixed pulley, the second fixed pulley and the second movable pulley.

7. The resistance device according to claim 5, further comprising a stopper mounted to a periphery of the third fixed sheave and the second movable sheave.

8. The resistance device according to claim 4, further comprising a third pulling rope and a fourth fixed pulley, wherein the fourth fixed pulley is fixedly arranged on the sliding block, one end of the third pulling rope is wound on the winch, and the other end of the third pulling rope is clamped into the fourth fixed pulley and protrudes out of the wire arranging mechanism.

9. The resistance device of claim 8, further comprising a housing enclosing the winch and a position sensor mounted to the housing for detecting the extension and retraction distance of the third pull cord.

10. A resistance arrangement according to claim 1, wherein the source of resistance comprises one or more of a motor, a wind resistance, a magnetic resistance and a water resistance.