CN114832283B

CN114832283B - strength training machine

Info

Publication number: CN114832283B
Application number: CN202110143852.6A
Authority: CN
Inventors: 陆远超
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Yuandong Smart Sports Technology Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Yuandong Smart Sports Technology Co Ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2023-11-24
Anticipated expiration: 2041-02-02
Also published as: CN114832283A

Abstract

The invention provides a strength training machine, which comprises a support frame, a weight balancing mechanism, a tension member and a detection assembly, wherein the weight balancing mechanism is arranged on the support frame, the weight balancing mechanism comprises a driving member and an output wheel assembly, the tension member is wound on the output wheel assembly, the output wheel assembly can rotate under the drive of the driving member, the output wheel assembly can reciprocate between a first position and a second position, the driving member is in an initial state when in the first position, and the driving member is in a use state when in the second position; the detection assembly comprises a detection piece and a controller, the detection piece is used for detecting whether the output wheel assembly is located at the first position, and the controller is used for controlling the driving piece to stop when the output wheel assembly is located at the first position. The strength training machine provided by the invention can improve the use safety of the strength training machine and the experience of a user.

Description

Strength training machine

Technical Field

The invention relates to the field of fitness equipment, in particular to a strength training machine.

Background

People pay more and more attention to physical health, so various fitness equipment is also spreading into people's lives. The existing strength training machine uses the balancing weight as a resistance source, or uses the motor as a resistance source, and the resistance source is transmitted to relevant parts of a human body through the tension piece, so that the purpose of strength training is achieved.

The initial position of the balancing weight is the supporting surface (such as the ground) of the strength training machine, and the balancing weight can be judged to reach the initial position when the balancing weight falls to the ground. The motor is adopted as the resistance source, and the initial position of motor is difficult to judge, and the motor will last output moment, and the device around the pulling force spare striking leads to the safety in utilization of pulling force training machine poor, influences user experience.

Disclosure of Invention

The invention provides a strength training machine, which can improve the use safety of the strength training machine and improve the experience of a user.

The invention provides a strength training machine, which comprises a support frame, a weight balancing mechanism, a tension member and a detection assembly, wherein the weight balancing mechanism is arranged on the support frame, the weight balancing mechanism comprises a driving member and an output wheel assembly connected with the driving member, the tension member is wound on the output wheel assembly, the output wheel assembly can rotate under the drive of the driving member, the output wheel assembly can reciprocate between a first position and a second position, the driving member is in an initial state when in the first position, and the driving member is in a use state when in the second position;

the detection assembly comprises a detection piece and a controller, the controller is electrically connected with the driving piece, the detection piece is used for detecting whether the output wheel assembly is located at the first position, and the controller is used for controlling the driving piece to stop when the output wheel assembly is located at the first position.

Optionally, the output wheel assembly of the strength training machine provided by the invention comprises a supporting wheel and a fixed wheel fixed relative to the supporting wheel, the tension member is arranged on the outer side wall of the supporting wheel in a parallel winding manner, the driving member is used for driving the supporting wheel to rotate, the supporting wheel is coaxially connected with the fixed wheel, and the supporting wheel moves back and forth along the axis of the output shaft of the driving member between a first position and a second position relative to the fixed wheel.

Optionally, the supporting wheel of the strength training machine provided by the invention comprises a first wheel body and a first extension part coaxially connected with the first wheel body, wherein the tension part is positioned on the outer side wall of the first wheel body, the first extension part extends towards the outer side of the first wheel body, and the first extension part is inserted into or sleeved on the fixed wheel and is connected with the fixed wheel through threads;

and/or, the output wheel assembly further comprises an extension piece, the extension piece is sleeved on the output shaft, the supporting wheel and the fixed wheel are sleeved on the extension piece, the extension piece and the supporting wheel rotate synchronously with the output shaft, and the supporting wheel can slide along the extension direction of the extension piece.

Optionally, the weight balancing mechanism of the strength training machine further comprises a fixed support, the driving piece and the fixed wheel are connected with the fixed support, so that the driving piece and the fixed wheel are relatively fixed, and the detecting piece is located between the fixed support and the supporting wheel.

Optionally, the fixing support comprises a first connecting part, a supporting part and a second connecting part, wherein the first connecting part and the second connecting part are connected with the supporting part, the first connecting part is connected with the driving part, the supporting part covers the first wheel body, the supporting part is provided with a mounting hole, the tension part extends to the outer side of the supporting part through the mounting hole, and the second connecting part extends towards the side face of the fixing wheel and is connected with the fixing wheel.

Optionally, the supporting part of the strength training machine provided by the invention is provided with an inlet and an outlet, the detecting component further comprises a bracket connected with the first connecting part, part of the bracket extends between the first connecting part and the first wheel body through the inlet and the outlet, the detecting piece is positioned on the bracket, and the detecting piece is opposite to the side surface of the first wheel body facing the output shaft; and/or the detection piece is a travel switch.

Optionally, one end of the tension member, which is positioned at the outer side of the supporting part, is provided with the connecting buckle, one surface of the supporting part, which is away from the first wheel body, is provided with the supporting bulge, the mounting hole is positioned on the supporting bulge, and the mounting hole is matched with the tension member;

and/or the first connecting part is provided with a first through hole, the first connecting part extends towards the end face of the driving piece with the output shaft and is connected with the end face of the driving piece with the output shaft, and the output shaft extends to the lower part of the supporting part through the first through hole;

And/or the second connecting part is provided with a second through hole, the fixed wheel comprises a second wheel body and a second extending part coaxially connected with the second wheel body, the first extending part is inserted into the second extending part and is connected with the second extending part through threads, and the second connecting part is sleeved on the second extending part through the second through hole and is connected with one surface of the second wheel body facing the second connecting part.

Optionally, in the strength training machine provided by the invention, a receiving cavity is formed on one side of the first wheel body facing the second extension part, and at least part of the second extension part is inserted into the receiving cavity in the second position.

Optionally, the tension piece of the strength training machine provided by the invention is a tension belt or a tension rope, the outer side wall of the supporting wheel is provided with a spiral accommodating groove, and the tension rope is positioned in the accommodating groove; the tension rope comprises a steel wire rope body and an anti-friction rope sleeve, the anti-friction rope sleeve comprises at least one wrapping layer, the wrapping layer is arranged around and wraps the circumferential outer side of the steel wire rope body, and the wrapping layer is a Kevlar layer or a polyethylene weaving layer.

Optionally, the strength training machine provided by the invention further comprises at least one buffer mechanism, the support frame comprises a first support and a second support, the first support comprises a first support first end and a first support second end, the second support comprises a second support first end and a second support second end, the first support first end is hinged with the second support first end, and the first support second end and the second support second end can be mutually close to or far away from each other so as to enable the first support and the second support to be switched between a folded state and an unfolded state;

The buffer mechanism is located on at least one of the first bracket and the second bracket, the buffer mechanism comprises a movable supporting piece, the supporting piece has moving damping relative to a supporting surface of the first bracket or the second bracket, and the supporting piece can be contacted with the supporting surface when the first bracket and the second bracket are away from each other to be unfolded to a preset position and move towards a hinge joint of the first bracket and the second bracket.

According to the strength training machine provided by the invention, the detection assembly is arranged and comprises the detection member and the controller, the position of the output wheel assembly is detected through the detection member, so that whether the driving member is in an initial state or not is judged, and when the driving member is in the initial state, the controller controls the driving member to stop, so that the driving member is prevented from continuously outputting torque, and the tension member is prevented from striking the driving member or the output wheel assembly and other components in the strength training machine. Therefore, the use safety of the strength training machine is improved, and the experience of a user is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a strength training machine according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of a detecting assembly, a counterweight mechanism and a tension belt in a strength training machine according to an embodiment of the invention;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a cross-sectional view of section B-B of FIG. 3;

FIG. 6 is a schematic view of a support wheel of the strength training machine according to the embodiment of the present invention;

FIG. 7 is a schematic view of a structure of a support wheel in a strength training machine according to another embodiment of the present invention;

FIG. 8 is a schematic view of an extension member of a strength training machine according to an embodiment of the present invention;

FIG. 9 is a cross-sectional view of section C-C of FIG. 4;

FIG. 10 is a schematic diagram of a folded state of a strength training machine according to an embodiment of the present invention;

FIG. 11 is a schematic diagram I of a strength training machine according to an embodiment of the present invention during deployment;

FIG. 12 is a second schematic diagram of the strength training machine according to the embodiment of the present invention during the deployment process;

FIG. 13 is a third schematic illustration of the strength training machine according to the present invention during deployment;

FIG. 14 is a schematic view of a strength training machine in an unfolded state according to an embodiment of the present invention;

FIG. 15 is a schematic view of a strength training machine in an expanded state at another angle according to an embodiment of the present invention;

FIG. 16 is a diagram showing the connection of the first support and the buffer mechanism in the strength training machine according to the embodiment of the present invention;

FIG. 17 is a schematic view of a connection handle of a strength training machine according to an embodiment of the present invention;

FIG. 18 is a diagram showing the connection between a first stand and a second stand in a strength training machine according to an embodiment of the present invention;

FIG. 19 is an exploded view of a cushioning mechanism in a strength training machine according to an embodiment of the present invention;

FIG. 20 is a schematic structural view of a first support in a strength training machine according to an embodiment of the present invention.

Reference numerals illustrate:

10-supporting frames; 20-pulling force piece; 21-connecting buckles; 22-a steel wire rope body; 23-antifriction rope sling; 30-a detection assembly; 31-detecting piece; 32-a bracket;

100-a first rack; 100 a-a first end of a first bracket; 100 b-a first bracket second end; 110-a first connector; 120-a first shock pad; 200-a second bracket; 200 a-a second bracket first end; 200 b-a second end of the second bracket; 210-a second connector; 220-a second shock pad;

300-a buffer mechanism; 310-support; 320-a damping assembly; 321-driving the device; 322-mounting rack; 323-the rotating shaft;

400-supporting surface;

500-connecting a handle; 510-a handle body; 512-connection;

600-counterweight mechanism; 610-a driver; 611-an output shaft; 620-an output wheel assembly; 621-supporting wheels; 6211-a first wheel; 6212-a first extension; 6213-first keyway; 6214-a receiving cavity; 6215-a receiving groove; 622-fixed wheel; 6221-a second wheel; 6222-a second extension; 623-an extension; 6231-second keyway; 6232-spline; 630-fixing the bracket; 631-a first connection; 6311-first via; 632-a support; 6321-mounting holes; 6322-doorway; 6323-support protrusions; 633-a second connection; 6331-second through hole;

700-support panel;

800-supporting rods;

810-a first connection seat; 820-a second connection socket;

900-casters.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals refer to the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The existing strength training machine uses the balancing weight as a resistance source, or uses the motor as a resistance source, and the resistance source is transmitted to relevant parts of a human body through the tension piece, so that the purpose of strength training is achieved. The initial position of the balancing weight is the supporting surface (such as the ground) of the strength training machine, and the balancing weight can be judged to reach the initial position when the balancing weight falls to the ground. The motor is adopted as the resistance source, and the initial position of motor is difficult to judge, and the motor will last output moment, and the device around the pulling force spare striking leads to the safety in utilization of pulling force training machine poor, influences user experience.

Based on the above, the embodiment of the application provides a strength training machine, which can improve the use safety of the strength training machine and improve the experience of a user.

FIG. 1 is a schematic diagram of a strength training machine according to an embodiment of the present application; FIG. 2 is an enlarged view of a portion of FIG. 1 at A; FIG. 3 is a schematic view of a detecting assembly, a counterweight mechanism and a tension belt in a strength training machine according to an embodiment of the application; FIG. 4 is an exploded view of FIG. 3; fig. 5 is a cross-sectional view of section B-B of fig. 3. Referring to fig. 1 to 5, the strength training machine provided by the embodiment of the application comprises a support frame 10, a weight balancing mechanism 600, a tension member 20 and a detection assembly 30, wherein the weight balancing mechanism 600 is arranged on the support frame 10, the weight balancing mechanism 600 comprises a driving member 610 and an output wheel assembly 620 connected with the driving member 610, the tension member 20 is wound on the output wheel assembly 620, the output wheel assembly 620 can rotate under the driving of the driving member 610, and the output wheel assembly 620 can reciprocate between a first position and a second position, the driving member 610 is in an initial state when in the first position, and the driving member 610 is in a use state when in the second position.

Specifically, the support frame 10 is used to support the weight mechanism 600. In this embodiment, the output wheel assembly 620 is rotated by the drive member 610. The driving member 610 may be a motor, and an output shaft of the motor is coaxially connected to the output wheel assembly 620, and drives the output wheel assembly 620 to rotate through the output shaft of the motor. The driving member 610 may also be a rotary cylinder or other components known to those skilled in the art that can drive the output wheel assembly 620 to rotate, and the weight mechanism 600 may be a weight mechanism commonly used by those skilled in the art, such as a weight mechanism or a motor simulation weight, as long as the weight mechanism can provide weight for strength training, which is not limited herein.

The driving force of the driving member 610 is transmitted to the tension member 20 through the output wheel assembly 620, and the torque output by the rotation of the driving member 610 is converted into the linear tension of the tension member 20, so that the weight mechanism 600 is equivalent to the weight load of the linear motion in the strength training machine. The user pulls the tension member 20 to achieve strength training.

It should be noted that, when the output wheel assembly 620 is in the first position, the driving member 610 is in the initial state, which may also be referred to as that the driving member 610 is in the initial position. At this time, the tension member 20 is wound around the output wheel assembly 620, and the driving member 610 stops outputting torque. After the driving member 610 is started, as the output wheel assembly 620 rotates, the user pulls the tension member 20, and part of the tension member 20 is separated from the output wheel assembly 620 until the tension member 20 is pulled to a preset position, i.e. the tension member 20 is pulled out by a length required for strength training at different positions, at this time, the output wheel assembly 620 is at the second position, and the driving member 610 is in a use state.

In order to determine the initial state of the driver 610, in this embodiment, a detection assembly 30 is also provided. The detecting assembly 30 includes a detecting member 31 and a controller (not shown) electrically connected to the driving member 610, the detecting member 31 for detecting whether the output wheel assembly 620 is located at the first position, and the controller for controlling the driving member 610 to stop when the output wheel assembly 620 is located at the first position.

Specifically, after the strength training machine is stopped, the driving member 610 is in an initial state and the output wheel assembly 620 is in the first position. When the force training machine is needed, the driving member 610 is manually started, and the user pulls the pulling member 20 to perform force training, and in this process, the output wheel assembly 620 is placed between the first position and the second position and in the second position by forward rotation and reverse rotation of the driving member 610. After the strength training is completed, the tension member 20 is released, and the output wheel assembly 620 returns to the first position, at this time, the detecting member 31 detects the output wheel assembly 620, so as to determine that the driving member 610 is in the initial state, and the controller controls the driving member 610 to stop, so that the driving member 610 is prevented from continuously outputting torque, and the tension member 20 is prevented from striking the driving member 610 or the output wheel assembly 620 in the strength training machine.

According to the strength training machine provided by the application, the detection assembly 30 is arranged, the detection assembly 30 comprises the detection member 31 and the controller, the position of the output wheel assembly 620 is detected through the detection member 31, so that whether the driving member 610 is in an initial state is judged, and when the driving member 610 is in the initial state, the controller controls the driving member 610 to stop, so that the driving member 610 is prevented from continuously outputting torque, and the tension member 20 is prevented from striking the driving member 610 or the output wheel assembly 620 and other components in the strength training machine. Therefore, the use safety of the strength training machine is improved, and the experience of a user is improved.

In the following, the output wheel assembly 620 is driven by the driving member 610 to rotate and reciprocate between the first position and the second position by combining the structure of the output wheel assembly 620.

In this embodiment, the output wheel assembly 620 includes a supporting wheel 621 and a fixed wheel 622 fixed relative to the supporting wheel 621, the tension member 20 is arranged around the outer side wall of the supporting wheel 621, the driving member 610 is used for driving the supporting wheel 621 to rotate, the supporting wheel 621 is coaxially connected with the fixed wheel 622, and the supporting wheel 621 moves reciprocally along the axis of the output shaft 611 of the driving member 610 between a first position and a second position relative to the fixed wheel 622.

Specifically, the supporting wheel 621 is driven to rotate synchronously with the output shaft 611 of the driving member 610 by the driving member 610, and during the rotation of the supporting wheel 621, the tension member 20 is separated from the supporting wheel 621 or wound on the supporting wheel 621, and the supporting wheel 621 moves toward the fixed wheel 622 (when the supporting wheel 621 moves toward the second position) or away from the fixed wheel 622 (when the supporting wheel 621 moves toward the first position) along the axial direction of the output shaft 611, thereby achieving the reciprocating movement of the supporting wheel 621 between the first position and the second position. The tension members 20 are wound around the outer side walls of the support wheels 621 side by side, so that the tension members 20 are prevented from being knotted or wound together when the tension members 20 are separated from the support wheels 621 or wound on the support wheels 621.

In a specific implementation, the supporting wheel 621 includes a first wheel body 6211 and a first extension portion 6212 coaxially connected to the first wheel body 6211, the tension member 20 is located on an outer side wall of the first wheel body 6211, the first extension portion 6212 extends toward an outer side of the first wheel body 6211, and the first extension portion 6212 is inserted into or sleeved on the fixed wheel 622 and is in threaded connection with the fixed wheel 622.

Specifically, the driving member 610 drives the first wheel 6211 to rotate forward or backward, and the threads of the first extension portion 6212 and the fixed wheel 622 are engaged with each other, so as to drive the first wheel 6211 to move toward the fixed wheel 622 or away from the fixed wheel 622.

In the prior art, the output shaft 611 of the driving member 610 is relatively short, and a problem of disengaging the first wheel 6211 from the output shaft 611 may occur during the movement of the first wheel 6211 toward the fixed wheel 622. FIG. 6 is a schematic view of a support wheel of the strength training machine according to the embodiment of the present invention; FIG. 7 is a schematic view of a structure of a support wheel in a strength training machine according to another embodiment of the present invention; FIG. 8 is a schematic structural view of an extension member of a strength training machine according to an embodiment of the present invention. Referring to fig. 5-8, in some embodiments, the output wheel assembly 620 further includes an extension member 623, the extension member 623 is sleeved on the output shaft 611, the support wheel 621 and the fixing wheel 622 are sleeved on the extension member 623, the extension member 623 and the support wheel 621 rotate synchronously with the output shaft 611, and the support wheel 621 is slidable along the extension direction of the extension member 623.

In a specific implementation, the extension member 623 may be a spline shaft, the supporting wheel 621 may have a first key groove 6213 matching with the spline shaft, and the supporting wheel 621 is prevented from rotating relative to the extension member 623 by the first key groove 6213 cooperating with the spline 6232 of the outer side wall of the spline shaft, and similarly, the inner side wall of the spline shaft is provided with a second key groove 6231, and the second key groove 6231 is connected with a third key groove on the output shaft 611 through a key. Thereby, the spline shaft is prevented from rotating relative to the output shaft 611, whereby the extension 623 and the support wheel 621 are realized to rotate synchronously with the output shaft 611. Also, while the support wheel 621 rotates in synchronization with the extension 623, the first key groove 6213 slides along the spline 6232, providing a moving guide for the support wheel 621 through the spline 6232.

With reference to fig. 3 to 5, in the strength training machine provided by the present application, the weight mechanism 600 further includes a fixing frame 630, and the driving member 610 and the fixing wheel 622 are connected to the fixing frame 630, so that the driving member 610 and the fixing wheel 622 are relatively fixed, and the detecting member 31 is located between the fixing frame 630 and the supporting wheel 621. The detecting piece 31 is disposed between the fixing bracket 630 and the supporting wheel 621, thereby facilitating the detection of the position of the supporting wheel 621.

In a specific implementation, the fixing bracket 630 includes a first connection portion 631, a support portion 632, and a second connection portion 633, and the first connection portion 631 and the second connection portion 633 are connected to the support portion 632. The first connecting portion 631 is connected to the driving member 610, the supporting portion 632 covers the first wheel body 6211, the supporting portion 632 has a mounting hole 6321, the tension member 20 extends to the outer side of the supporting portion 632 through the mounting hole 6321, and the second connecting portion 633 extends toward the side of the fixed wheel 622 and is connected to the fixed wheel 622.

In order to facilitate the pulling member 20 to be pulled out of the supporting portion 632 from the mounting hole 6321 smoothly, a space is provided between the supporting portion 632 and the first wheel body 6211, so that the first wheel body 6211 can rotate smoothly, and the pulling member 20 can be pulled out of the supporting portion 632 from the mounting hole 6321 smoothly. During rotation of the first wheel body 6211, the tension member 20 moves toward the mounting hole 6321, and the tension member 20 is pulled out of the support portion 632 at the position of the mounting hole 6321.

In the strength training machine provided by the application, the supporting portion 632 is provided with the inlet 6322, the detecting assembly 30 further comprises a bracket 32 connected with the first connecting portion 631, a part of the bracket 32 extends between the first connecting portion 631 and the first wheel body 6211 through the inlet 6322, the detecting element 31 is located on the bracket 32, and the detecting element 31 is opposite to the side surface of the first wheel body 6211 facing the output shaft 611, and the detecting element 31 may be a travel switch.

The detecting member 31 may be connected to the bracket 32 by a screw, and a portion of the bracket 32 connected to the detecting member 31 extends between the supporting portion 632 and the first wheel body 6211 through the inlet 6322 and is connected to the first connecting portion 631 by a screw, and the bracket 32 and the first connecting portion 631 may be connected to one side of the first connecting portion 631 facing the driving member 610 by a screw, thereby facilitating fixing of the bracket 32.

In a specific implementation, the support 32 may be in a zigzag shape, one end of the support 32 is used as a hand-held end, the other end of the support 32 is provided with the detecting element 31, and the detecting element 31 extends towards the first wheel body 6211, so that the supporting wheel 621 contacts with the detecting element 31 when in the first position, thereby triggering the detecting element 31, and after the detecting element 31 is triggered, the controller signals the controller to send a signal for stopping operation to the driving element 610.

In some embodiments, the end of the tension member 20 located outside the supporting portion 632 is provided with a connecting buckle 21, the supporting portion 632 has a supporting protrusion 6323 on a surface facing away from the first wheel body 6211, the mounting hole 6321 is located on the supporting protrusion 6323, and the mounting hole 6321 is matched with the tension member 20.

Specifically, the supporting protrusion 6323 may be perpendicular to the supporting portion 632, a mounting hole 6321 penetrating the supporting portion 632 and the supporting protrusion 6323 is provided in the supporting protrusion 6323, an inner edge profile of the mounting hole 6321 is matched with an outer edge profile of the tension member 20, the section of the tension member 20 is circular, the mounting hole 6321 is a circular hole having an inner diameter identical to an outer diameter of the tension member 20, the tension member 20 is supported by the supporting protrusion 6323, and the mounting hole 6321 in the supporting protrusion 6323 provides a guide for movement of the tension member 20. By providing the connecting buckle 21, the user can conveniently pull the tension member 20 or connect the tension member 20 with other auxiliary devices.

In order to firmly connect the fixing bracket 630 between the driving member 610 and the fixing wheel 622. In some embodiments, the first connecting portion 631 has a first through hole 6311, and the first connecting portion 631 extends toward the end surface of the driving member 610 having the output shaft 611 and is connected to the end surface of the driving member 610 having the output shaft 611, and the output shaft 611 extends to the lower portion of the supporting portion through the first through hole 6311, so that the connection area of the first connecting portion 631 and the driving member 610 is increased. Thereby, the fixing bracket 630 is firmly coupled with the driving member 610.

The second connecting portion 633 has a second through hole 6331, the fixed wheel 622 includes a second wheel body 6221 and a second extending portion 6222 coaxially connected to the second wheel body 6221, the first extending portion 6212 is inserted into the second extending portion 6222 and is connected to the second extending portion 6222 through a screw thread, and the second connecting portion 633 is sleeved on the second extending portion 6222 through the second through hole 6331 and is connected to a surface of the second wheel body 6221 facing the second connecting portion 633. In this way, the connection area of the second connection portion 633 and the fixed sheave 622 is increased, thereby firmly connecting the fixing bracket 630 and the fixed sheave 622.

Optionally, in the strength training machine provided by the application, a side of the first wheel body 6211 facing the second extension portion 6222 is provided with a containing cavity 6214, and in the second position, at least part of the second extension portion 6222 is inserted into the containing cavity 6214. Thus, the weight mechanism 600 is compact, and the occupied area of the weight mechanism 600 is reduced.

Fig. 9 is a cross-sectional view of section C-C of fig. 4. Referring to fig. 4 to 9, in the strength training machine provided by the application, the tension member 20 is a tension belt or a tension rope, the outer side wall of the supporting wheel 621 is provided with a spiral accommodating groove 6215, the accommodating groove 6215 extends spirally around the outer side wall of the supporting wheel 621, and the tension rope is positioned in the accommodating groove 6215; the pulling force rope includes wire rope body 22 and antifriction rope cover 23, and antifriction rope cover 23 includes at least one deck parcel layer, and the parcel layer encloses to establish and wrap up in wire rope body 22's circumference outside, and the parcel layer is Kevlar layer or polyethylene weaving layer. The Kevlar layer or the polyethylene woven layer is adopted as the wrapping layer, so that the bearing and strength of the tension member 20 are ensured, and the wear resistance of the tension member 20 is improved.

FIG. 10 is a schematic diagram of a folded state of a strength training machine according to an embodiment of the present application; FIG. 11 is a schematic diagram I of a strength training machine according to an embodiment of the present application during deployment; FIG. 12 is a second schematic diagram of the strength training machine according to the embodiment of the present application during the deployment process; FIG. 13 is a third schematic illustration of the strength training machine according to the present application during deployment; FIG. 14 is a schematic view of a strength training machine in an unfolded state according to an embodiment of the present application; FIG. 15 is a schematic view of a strength training machine in an expanded state at another angle according to an embodiment of the present application; FIG. 16 is a diagram showing the connection of the first support and the buffer mechanism in the strength training machine according to the embodiment of the present application; FIG. 17 is a schematic view of a connection handle of a strength training machine according to an embodiment of the present application; FIG. 18 is a diagram showing the connection between the first and second brackets in the strength training machine according to the embodiment of the present application.

As shown in fig. 10 to 18, the strength training machine according to the embodiment of the present invention further includes at least one buffer mechanism 300, the support frame 10 includes a first support frame 100 and a second support frame 200, the first support frame 100 includes a first support frame first end 100a and a first support frame second end 100b, the second support frame 200 includes a second support frame first end 200a and a second support frame second end 200b, the first support frame first end 100a is hinged with the second support frame first end 200a, and the first support frame second end 100b and the second support frame second end 200b can be moved toward or away from each other to switch the first support frame 100 and the second support frame 200 between a folded state and an unfolded state. Wherein, a weight mechanism 600 is connected to at least one of the first bracket 100 and the second bracket 200.

Specifically, as shown in fig. 17 and 18, the first bracket first end 100a is hinged with the second bracket first end 200a by a connection handle 500. The first bracket first end 100a has at least two first connectors 110, the second bracket first end 200a has at least two second connectors 210, the first connectors 110 and the second connectors 210 are disposed in one-to-one correspondence, the connection handle 500 includes a handle body 510, two ends of the handle body 510 are respectively provided with a connection portion 512, and each connection portion 512 is hinged with the opposite first connector 110 and the second connector 210, for example, through a connection shaft.

It will be appreciated that the attachment handle 500 may be located in a central region of the first support frame first end 100a or the second support frame first end 200a such that the first support frame 100 and the second support frame 200 are more evenly stressed when the single hand pull strength training machine is folded.

In particular, there is a gap between the first connector 110 and the second connector 210, thereby avoiding interference between the first bracket 100 and the second bracket 200 during folding of the strength training machine. Wherein, the opposite ends of the first connecting member 110 and the second connecting member 210 may be provided with chamfers, such as round chamfers, and the first bracket 100 and the second bracket 200 may be prevented from interfering with each other during the folding process of the strength training machine.

When the strength training machine is folded, the connecting handle 500 is lifted, and the first end 100a of the first support and the first end 200a of the second support are lifted upwards along with the connecting handle 500, so that the second end 100b of the first support and the second end 200b of the second support are driven to approach each other until being abutted to form a state shown in fig. 10, and the folding of the strength training machine is completed. The folded strength training machine body is reduced in size and convenient to store. Before the strength training machine is deployed, the first support second end 100b and the second support second end 200b are both in contact with the support surface 400 (e.g., the ground) of the strength training machine, and force is applied to the first support first end 100a and the second support first end 200a by the connection handle 500, so that the first support second end 100b and the second support second end 200b are far away from each other until the first support first end 100a and the second support first end 200a are both in contact with the support surface 400, forming the state shown in fig. 14, and completing the deployment of the strength training machine.

However, when both the first bracket first end 100a and the second bracket first end 200a are in contact with the support surface 400, the first bracket 100 and the second bracket 200 directly strike the support surface 400 due to their own weight, which easily causes damage to the first bracket 100 and the second bracket 200. And the first and second brackets 100 and 200 may be pressed against the user's feet (the user typically stands in an intermediate position when deployed), thereby resulting in unsafe use and an impact on the user experience.

Based on this, in this embodiment, as shown in fig. 13 and 14, the buffer mechanism 300 is disposed on at least one of the first bracket 100 and the second bracket 200, the buffer mechanism 300 includes a movable support 310, the support 310 has a movement damping with respect to the support surface 400 of the first bracket 100 or the second bracket 200, and the support 310 can contact with the support surface 400 and move toward the hinge of the first bracket 100 and the second bracket 200 when the first bracket 100 and the second bracket 200 are away from each other to be unfolded to a preset position.

Specifically, the number of the buffer mechanisms 300 may be one, the buffer mechanisms 300 may be provided only on the first bracket 100 or on the second bracket 200, the number of the buffer mechanisms 300 may be two or more, and at least one buffer mechanism 300 may be provided on each of the first bracket 100 and the second bracket 200. In the present embodiment and the drawings, a buffer mechanism 300 is provided on both the first bracket 100 and the second bracket 200.

It should be noted that the preset position may be a relative position of the first support 100 and the second support 200 when the strength training machine is about to be fully deployed, i.e., the first support second end 100b and the second support second end 200b are not in contact with the supporting surface 400. The preset position is adaptively designed according to actual requirements. To facilitate setting the preset position, it can be considered that the strength training machine is in the preset position when the distance between the connection handle 500 and the support surface 400 is 90mm to 100 mm.

In the present embodiment, when the first and second brackets 100 and 200 are moved away from each other to be unfolded to a predetermined position, the support 310 contacts the support surface 400, and the first and second brackets 100 and 200 are supported by the support 310. Since the support 310 has a movement damping with respect to the support surface 400 of the first bracket 100 or the second bracket 200, the movement damping prevents the support 310 from moving toward the hinge of the first bracket 100 and the second bracket 200, i.e., the movement damping prevents the support 310 from moving toward the first bracket end 100b or the second bracket end 200b, thereby slowing down the descent speed of the first bracket 100 and the second bracket 200 through the support 310, thereby realizing slow descent of the strength training machine during deployment, so as to reduce impact of the first bracket 100 and the second bracket 200 on the ground, and avoid damaging the first bracket 100 and the second bracket 200. Meanwhile, the first bracket 100 or the second bracket 200 is prevented from injuring the user, and the experience of the user is improved.

In the present embodiment, the support 310 may be rotated about the first bracket 100 or the second bracket 200 such that the support 310 moves toward the hinge of the first bracket 100 and the second bracket 200 or moves toward a side away from the hinge of the first bracket 100 and the second bracket 200. During the deployment of the strength training machine, the support 310 moves toward the hinge of the first and second brackets 100 and 200, and the descent speed of the first and second brackets 100 and 200 is slowed down by the support 310. The support 310 moves toward a side away from the hinge of the first and second brackets 100 and 200 during the folding of the strength training machine, and thus, the support 310 returns to the original position so as to slow down the descending speed of the first and second brackets 100 and 200 during the next unfolding of the strength training machine.

FIG. 19 is an exploded view of a cushioning mechanism in a strength training machine according to an embodiment of the present invention; FIG. 20 is a schematic structural view of a first support in a strength training machine according to an embodiment of the present invention. As shown in fig. 10 to 20, the cushioning mechanism 300 of the present invention further includes a damping assembly 320 connected to the support member 310, wherein the damping assembly 320 is connected to the first bracket 100 or the second bracket 200, and the support member 310 is rotated toward the hinge of the first bracket 100 and the second bracket 200 to compress the damping assembly 320 when in a preset position. During the process of switching the strength training machine from the unfolded state to the folded state, the supporting member 310 is out of contact with the supporting surface 400, and the damping assembly 320 is extended to rotate the supporting member 310 toward a side away from the hinge of the first and second brackets 100 and 200.

In this embodiment, the support 310 is provided with movement damping by a damping assembly 320. When the support member 310 is unfolded to the preset position, the support member 310 contacts the support surface 400, the damping member 320 is compressed by the support member 310, and the damping member 320 provides a reaction force to the support member 310 to slow down the descent speed of the first and second brackets 100 and 200. In the process that the strength training machine is switched from the unfolding state to the folding state, the supporting piece 310 is separated from the supporting surface 400, at this time, the compression of the supporting piece 310 to the damping component 320 is relieved, the damping component 320 automatically stretches to drive the supporting piece 310 to rotate towards the side far away from the damping component 320, and meanwhile, the stretching force of the damping component 320 jacks up the hinge joint of the first bracket 100 and the second bracket 200, so that the strength training machine is labor-saving when being folded, and the strength training machine is folded conveniently.

In particular, the damping assembly 320 includes a driving device 321, one end of the driving device 321 in the telescopic direction is connected to the first bracket 100 or the second bracket 200, the other end of the driving device 321 in the telescopic direction is connected to the supporting member 310, and the driving device 321 is used for applying motion damping to the supporting member 310.

In one possible implementation, the driving device 321 may be a spring, and a first end of the spring in a direction of extension and retraction is connected to the first bracket 100 or the second bracket 200, and a second end of the spring in a direction of extension and retraction is connected to the support 310.

In another possible implementation, the driving means 321 is a linear motor, a cylinder or a hydraulic cylinder. For convenience of description, the driving device 321 is illustrated as a cylinder in the present embodiment and the drawings. The piston rod of the cylinder may be connected to the first bracket 100 or the second bracket 200, and the cylinder body may be connected to the support 310 opposite thereto. Alternatively, the piston rod of the cylinder may be coupled to the support 310 opposite thereto, and the cylinder body may be coupled to the first bracket 100 or the second bracket 200. The piston rod extends into or out of the cylinder body of the cylinder, thereby completing the extension and retraction of the driving means 321.

In order to facilitate the damping assembly 320 to apply the movement damping to the support member 310, the damping assembly 320 of the strength training machine according to the embodiment of the present invention further includes a mounting bracket 322, one end of the driving device 321 in the telescopic direction is hinged to the first bracket 100 or the second bracket 200, the other end of the driving device 321 in the telescopic direction is hinged to the mounting bracket 322, the mounting bracket 322 is hinged to the first bracket 100 or the second bracket 200, the support member 310 is hinged to the mounting bracket 322, and the support member 310 is rotatable with respect to the mounting bracket 322.

In the present embodiment, the support 310 is coupled to the first bracket 100 or the second bracket 200 by the mounting bracket 322 to complete the installation of the support 310. Is hinged to the first bracket 100 or the second bracket 200 by a mounting bracket 322, thereby facilitating the rotation of the support 310 around the first bracket 100 or the second bracket 200. The driving means 321 is connected to the support 310 by a mounting bracket 322 so that the damping assembly 320 applies a movement damping to the support 310.

In a specific implementation, the supporting member 310 may be a roller, where the roller is hinged to the mounting frame 322 through the rotating shaft 323, and an axis of the roller is parallel to the supporting surface 400. The rotating shaft 323 can be fixedly connected to the mounting frame 322, and the rollers penetrate through the rotating shaft 323. The rotation of the roller itself reduces friction between the support 310 and the support surface 400 to allow for smooth deployment or folding of the strength training machine.

In the strength training machine provided by the embodiment of the invention, at least one buffer mechanism 300 is arranged on the first support 100 and the second support 200, and the buffer mechanisms 300 on the first support 100 and the buffer mechanisms 300 on the second support 200 are staggered.

The first bracket 100 and the second bracket 200 each include a support panel 700 and a plurality of support rods 800 positioned below the support panel 700, and each support rod 800 and the support panel 700 together define a receiving cavity having an opening. In the folded state, at least a portion of the supporting members 310 on the first bracket 100 enter the receiving cavity of the second bracket 200 through the opening on the second bracket 200, and at least a portion of the supporting members 310 on the second bracket 200 enter the receiving cavity of the first bracket 100 through the opening on the first bracket 100, thereby reducing the space occupied by the buffer mechanism 300.

The support rods 800 may be provided with a first connection seat 810 and a second connection seat 820, the first connection seat 810 is located on the support rod 800 disposed along the X direction in fig. 20, the second connection seat 820 is located on the support rod 800 disposed along the Y direction in fig. 15, the first connection seat 810 is hinged to the mounting frame 322, the second connection seat 820 is hinged to the driving device 321, and the telescopic direction of the driving device 321 is along the X direction in fig. 15.

Further, in the strength training machine according to the embodiment of the present invention, the buffer mechanism 30 on the first support 100 is located at a first side of the extending direction, the buffer mechanism 300 on the second support 200 is located at a second side of the extending direction, and the extending direction is a direction from the second end 100b of the first support to the second end 200b of the second support when in the unfolded state, that is, the extending direction is the X direction in fig. 17.

In some embodiments, the support panel 700 of the first bracket 100 and the support panel 700 of the second bracket 200 are provided with the weight mechanism 600, that is, the weight mechanism 600 is disposed on the support panel 700, the support panel 700 provides support for the user when the user stands up, and the weight mechanism 600 is disposed on the support panel 700, so that the user can conveniently pull the tension member 20 on the support panel 700.

In other embodiments, the end face of the first bracket second end 100b is inclined toward the bottom surface of the first bracket 100, the end face of the second bracket second end 200b is inclined toward the bottom surface of the second bracket 200, the end face of the first bracket second end 100b and the end face of the second bracket second end 200b each have casters 900, the casters 900 providing support for the first bracket second end 100b and the second bracket second end 200 b. The casters 900 may be movable casters and fixed casters, among others. In this way, in the folding or unfolding process of the strength training machine, the casters 900 are in rolling contact with the supporting surface 400, so that the folding or unfolding process of the strength training machine is labor-saving.

Optionally, in the strength training machine according to the present invention, the bottom of the first support 100 has at least one first shock pad 120, the bottom of the second support 200 has at least one second shock pad 220, and in the unfolded state, the first shock pad 120, the second shock pad 220 and the support member 310 are all in contact with the support surface 400.

Wherein the first shock pad 120 and the second shock pad 220 may be positioned on at least a portion of the support bar 800, and each of the first shock pad 120 or the second shock pad 220 may be spaced apart and uniformly arranged. The first and second shock pads 120 and 220 may be one of foam pads, rubber pads, or springs. The first and second shock pads 120 and 220 provide shock absorption to reduce the impact of the first and second brackets 100 and 200 on the support surface 400 during use of the strength training machine.

In a specific implementation, the first shock pad 120 and the second shock pad 220 are disposed in one-to-one correspondence, and in a folded state, the opposite first shock pad 120 and second shock pad 220 abut. Thus, a cavity is formed between the bottom surface of the first bracket 100 and the bottom surface of the second bracket 200, and at least a portion of the support member 310 may be located in the cavity.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. The utility model provides a strength training machine which characterized in that, includes support frame, counter weight mechanism, pulling force spare and detection component, the counter weight mechanism sets up on the support frame, the counter weight mechanism include the driving piece with the output wheel subassembly that the driving piece is connected, the pulling force spare winds to be established on the output wheel subassembly, the output wheel subassembly can be under the drive of driving piece rotatory, and the output wheel subassembly can reciprocate between first position and second position, in the first position, the driving piece is in initial state, in the second position, the driving piece is in the state of using;

2. The strength training machine of claim 1 wherein the output wheel assembly includes a support wheel and a fixed wheel fixed relative to the support wheel, the tension member is disposed side-by-side about an outer sidewall of the support wheel, the drive member is configured to drive the support wheel in rotation, the support wheel is coaxially coupled to the fixed wheel, and the support wheel reciprocates relative to the fixed wheel along an axis of an output shaft of the drive member between the first position and the second position.

3. The strength training machine according to claim 2, wherein the supporting wheel comprises a first wheel body and a first extension part coaxially connected with the first wheel body, the tension member is located on the outer side wall of the first wheel body, the first extension part extends towards the outer side of the first wheel body, and the first extension part is inserted into or sleeved on the fixed wheel and is connected with the fixed wheel through threads;

And/or, the output wheel assembly further comprises an extension piece, the extension piece is sleeved on the output shaft, the support wheel and the fixed wheel are sleeved on the extension piece, the extension piece and the support wheel synchronously rotate with the output shaft, and the support wheel can slide along the extension direction of the extension piece.

4. A strength training machine according to claim 3 wherein the weight mechanism further comprises a fixed bracket, the drive member and the fixed sheave each being connected to the fixed bracket such that the drive member and the fixed sheave are fixed relative to each other, the detection member being located between the fixed bracket and the support sheave.

5. The strength training machine of claim 4 wherein the mounting bracket includes a first connecting portion, a support portion, and a second connecting portion, the first connecting portion and the second connecting portion each being connected to the support portion, the first connecting portion being connected to the driving member, the support portion covering the first wheel body, the support portion having a mounting hole therein, the tension member extending to an outer side of the support portion through the mounting hole, the second connecting portion extending toward a side of the fixed wheel and being connected to the fixed wheel.

6. The strength training machine of claim 5 wherein the support has an access opening therein, the sensing assembly further comprising a bracket coupled to the first coupling portion, a portion of the bracket extending between the first coupling portion and the first wheel body through the access opening, the sensing member being positioned on the bracket and the sensing member being opposite a side of the first wheel body facing the output shaft; and/or, the detection piece is a travel switch.

7. The strength training machine of claim 5 wherein the tension member has a connector at an end thereof located outside the support portion, the support portion has a support protrusion on a side thereof facing away from the first wheel body, the mounting hole is located on the support protrusion, and the mounting hole is matched with the tension member;

and/or, the second connecting part is provided with a second through hole, the fixed wheel comprises a second wheel body and a second extending part coaxially connected with the second wheel body, the first extending part is inserted into the second extending part and is connected with the second extending part through threads, and the second connecting part is sleeved on the second extending part through the second through hole and is connected with one surface of the second wheel body, which faces the second connecting part.

8. The strength training machine of claim 7 wherein the side of the first wheel body facing the second extension has a receiving cavity, at least a portion of the second extension being inserted into the receiving cavity in the second position.

9. The strength training machine according to any one of claims 2 to 8, wherein the tension member is a tension belt or a tension rope, and the outer side wall of the support wheel is provided with a spiral receiving groove, and the tension rope is located in the receiving groove; the tension rope comprises a steel wire rope body and an anti-friction rope sleeve, the anti-friction rope sleeve comprises at least one wrapping layer, the wrapping layer is arranged around and wraps the circumferential outer side of the steel wire rope body, and the wrapping layer is a Kevlar layer or a polyethylene weaving layer.

10. The strength training machine of any one of claims 1 to 8 further comprising at least one cushioning mechanism, the support frame comprising a first support and a second support, the first support comprising a first support first end and a first support second end, the second support comprising a second support first end and a second support second end, the first support first end being hinged to the second support first end, the first support second end and the second support second end being movable toward and away from each other to switch the first support and the second support between a collapsed state and an expanded state;

The buffer mechanism is located on at least one of the first bracket and the second bracket, the buffer mechanism comprises a movable supporting piece, the supporting piece has moving damping relative to the supporting surface of the first bracket or the second bracket, and the supporting piece can be contacted with the supporting surface when the first bracket and the second bracket are mutually far away to be unfolded to a preset position and move towards the hinge joint of the first bracket and the second bracket.