CN114832283A

CN114832283A - Strength training machine

Info

Publication number: CN114832283A
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: 2022-08-02
Anticipated expiration: 2041-02-02
Also published as: CN114832283B

Abstract

The invention provides a strength training machine, which comprises a support frame, a counterweight mechanism, a tension member and a detection assembly, wherein the counterweight mechanism is arranged on the support frame, the counterweight 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 be driven by the driving member to rotate, the output wheel assembly can reciprocate between a first position and a second position, the driving member is in an initial state at the first position, and the driving member is in a use state at 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 improve 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 the health of the body, so that various fitness equipment also begin to be popularized in the life of people. The existing strength training machine takes the balancing weight as a resistance source, or takes the motor as the resistance source, and the resistance source is transmitted to the relevant parts of the human body through the tension piece, so as to achieve the purpose of strength training.

The initial position of the balancing weight is the supporting surface (such as the ground) of the strength training machine, and when the balancing weight falls to the ground, the balancing weight can be judged to reach the initial position. The motor is used as a resistance source, the initial position of the motor is difficult to judge, the motor can continuously output torque, and the tension piece impacts devices around the tension piece, so that the use safety of the tension training machine is poor, and the user experience is influenced.

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 counterweight mechanism, a tension member and a detection assembly, wherein the counterweight mechanism is arranged on the support frame and comprises a driving member and an output wheel assembly connected with the driving member;

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 members are arranged around the outer side wall of the supporting wheel side by side, 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 reciprocates 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 extending portion coaxially connected with the first wheel body, the tension member is located on the outer side wall of the first wheel body, the first extending portion extends towards the outer side of the first wheel body, and the first extending portion is inserted into or sleeved on the fixed wheel and is in threaded connection with the fixed wheel;

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 counterweight mechanism of the strength training machine provided by the invention further comprises a fixed support, the driving element and the fixed wheel are both connected with the fixed support so as to relatively fix the driving element and the fixed wheel, and the detection element is located between the fixed support and the supporting wheel.

Optionally, the strength training machine provided by the invention includes a fixing bracket, wherein the fixing bracket includes a first connecting portion, a supporting portion and a second connecting portion, the first connecting portion and the second connecting portion are both connected to the supporting portion, the first connecting portion is connected to the driving member, the supporting portion covers the first wheel body, the supporting portion is provided with a mounting hole, the pulling member extends to the outer side of the supporting portion through the mounting hole, and the second connecting portion extends toward the side surface of the fixing wheel and is connected to the fixing wheel.

Optionally, the strength training machine provided by the invention has an entrance on the supporting portion, the detecting assembly further includes a bracket connected with the first connecting portion, a part of the bracket extends to a position between the first connecting portion and the first wheel body through the entrance, the detecting member is located on the bracket, and the detecting member 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, in the strength training machine provided by the invention, a connecting buckle is arranged at one end of the tension member, which is located at the outer side of the supporting portion, a supporting protrusion is arranged on one surface of the supporting portion, which is away from the first wheel body, a mounting hole is arranged on the supporting protrusion, 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 part with the output shaft and is connected with the end face of the driving part 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 in threaded connection with the second extending part, 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, one side of the first wheel body facing the second extending portion is provided with an accommodating cavity, and in the second position, at least part of the second extending portion is inserted into the accommodating cavity.

Optionally, in the strength training machine provided by the invention, the tension piece is a tension belt or a tension rope, the outer side wall of the support wheel is provided with a spiral accommodating groove, and the tension rope is located in the accommodating groove; the tensile force rope includes the steel wire rope body and anti friction fag end, and anti friction fag end includes at least one parcel layer, and the parcel layer encloses to establish and wraps up in the circumference outside of the steel wire rope body, and the parcel layer is Kevlar layer or 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 close to or far away from each other, so that the first support and the second support can be switched between the folded state and the unfolded state;

the cushioning mechanism is located on at least one of the first bracket and the second bracket, and the cushioning mechanism includes a movable support member having a movement damping with respect to a support surface of the first bracket or the second bracket, the support member being contactable with the support surface and movable toward a hinge of the first bracket and the second bracket when the first bracket and the second bracket are spaced apart from each other to be deployed to a predetermined position.

The strength training machine provided by the invention is provided with the detection assembly, the detection assembly comprises the detection piece and the controller, the position of the output wheel assembly is detected through the detection piece, so that whether the driving piece is in an initial state or not is judged, and the controller controls the driving piece to stop when the driving piece is in the initial state, so that the driving piece is prevented from continuously outputting torque, and the tension piece is prevented from impacting the driving piece or the output wheel assembly and other parts in the strength training machine. Therefore, the use safety of the strength training machine is improved, and the experience of the 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 used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural 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 structural diagram of a detection assembly, a weight mechanism and a tension band in the strength training machine according to an embodiment of the present invention;

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

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

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

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

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

FIG. 9 is a cross-sectional view taken along line C-C of FIG. 4;

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

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

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

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

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

FIG. 15 is a schematic view of another embodiment of the present invention showing the power training machine in an unfolded state;

FIG. 16 is a connection diagram of a first frame and a cushioning mechanism of a strength training machine according to an embodiment of the present invention;

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

FIG. 18 is a connection diagram of a first frame and a second frame of the 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 bracket of the strength training machine according to the embodiment of the invention.

Description of reference numerals:

10-a support frame; 20-a tension member; 21-connecting buckles; 22-a steel wire rope body; 23-anti-friction rope sleeve; 30-a detection component; 31-a detection member; 32-a scaffold;

100-a first scaffold; 100 a-first leg first end; 100 b-a first bracket second end; 110-a first connector; 120-a first cushion; 200-a second scaffold; 200 a-a second holder first end; 200 b-a second bracket second end; 210-a second connector; 220-a second cushion;

300-a buffer mechanism; 310-a support; 320-a damping assembly; 321-a drive device; 322-a mounting frame; 323-a rotating shaft;

400-a support surface;

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

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

700-a support panel;

800-support bar;

810-a first connection mount; 820-a second connecting seat;

900-caster.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The existing strength training machine takes the balancing weight as a resistance source, or takes the motor as the resistance source, and the resistance source is transmitted to the relevant parts of the human body through the tension piece, so as to achieve the purpose of strength training. The initial position of the balancing weight is the supporting surface (such as the ground) of the strength training machine, and when the balancing weight falls to the ground, the balancing weight can be judged to reach the initial position. The motor is used as a resistance source, the initial position of the motor is difficult to judge, the motor can continuously output torque, and the tension piece impacts devices around the tension piece, so that the use safety of the tension training machine is poor, and the user experience is influenced.

Based on this, the embodiment of the application provides a strength training machine, can improve the safety in utilization of strength training machine, improves user's experience sense.

FIG. 1 is a schematic structural 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 structural diagram of a detection assembly, a weight mechanism and a tension band in the strength training machine according to an embodiment of the present invention; FIG. 4 is an exploded view of FIG. 3; fig. 5 is a sectional view taken along line B-B in fig. 3. Referring to fig. 1 to 5, a strength training machine according to an embodiment of the present application includes a supporting frame 10, a weight mechanism 600, a tension member 20, and a detecting assembly 30, wherein the weight mechanism 600 is disposed on the supporting frame 10, the weight mechanism 600 includes a driving member 610 and an output wheel assembly 620 connected to the driving member 610, the tension member 20 is wound on the output wheel assembly 620, the output wheel assembly 620 is rotatable by the driving member 610, and the output wheel assembly 620 is reciprocally movable between a first position at which the driving member 610 is in an initial state and a second position at which the driving member 610 is in a use state.

Specifically, the support stand 10 is used to support the weight mechanism 600. In this embodiment, the output wheel assembly 620 is rotated by the drive member 610. Wherein, driving piece 610 can be the motor, and the output shaft of motor and output wheel subassembly 620 coaxial coupling, rotate through the output shaft drive output wheel subassembly 620 of motor. The driving member 610 may also be a rotating cylinder or other members known to those skilled in the art that can drive the output wheel assembly 620 to rotate, and the counterweight mechanism 600 may be a counterweight mechanism commonly used by those skilled in the art, such as a counterweight block counterweight mechanism or a motor simulation counterweight, as long as it can provide a counterweight 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 perform strength training.

It should be noted that when the output wheel assembly 620 is at the first position, the driving member 610 is in the initial state, which may also be referred to as the initial position of the driving member 610. At this time, the tension member 20 is wound around the output wheel assembly 620, and the driving member 610 stops outputting the torque. After the driving member 610 is started, as the output wheel assembly 620 rotates, the user pulls the pulling member 20, and a portion of the pulling member 20 is disengaged from the output wheel assembly 620 until the pulling member 20 is pulled to a predetermined position, i.e., the pulling member 20 is pulled out of a length required by 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), the controller is electrically connected to the driving member 610, the detecting member 31 is used for detecting whether the output wheel assembly 620 is located at the first position, and the controller is used 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 shut down, the driving member 610 is in the initial state and the output wheel assembly 620 is in the first position. When it is desired to use the strength training machine, the driving member 610 is manually actuated and the user pulls the tension member 20 for strength training, during which the output wheel assembly 620 is positioned between the first position and the second position by the forward rotation and the reverse rotation of the driving member 610. Until the strength training is completed, the tension member 20 is released, the output wheel assembly 620 returns to the first position, at this time, the detection 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 as to prevent the driving member 610 from continuously outputting torque, and the tension member 20 from impacting the driving member 610 or the output wheel assembly 620 and other parts in the strength training machine.

The utility model provides a strength training machine, through setting up detection module 30, detection module 30 includes detection piece 31 and controller, detects the position of output wheel subassembly 620 through detection piece 31 to judge whether driving piece 610 is in initial condition, is in initial condition at driving piece 610, and the controller control driving piece 610 is shut down, thereby avoids driving piece 610 to continue output torque, and makes pulling force piece 20 striking driving piece 610 or output wheel subassembly 620 parts among the strength training machine. Therefore, the use safety of the strength training machine is improved, and the experience of the user is improved.

Next, with reference to the structure of the output wheel assembly 620, an implementation manner of the output wheel assembly 620 being capable of reciprocating between the first position and the second position while rotating by the driving member 610 will be described.

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 wound around an outer side wall of the supporting wheel 621 side by side, 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 reciprocates along an 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 by the driving member 610 to rotate synchronously with the output shaft 611 of the driving member 610, and during the rotation of the supporting wheel 621, the tension member 20 disengages from the supporting wheel 621 or winds on the supporting wheel 621, and the supporting wheel 621 moves towards the fixed wheel 622 (when the supporting wheel 621 moves towards the second position) or away from the fixed wheel 622 (when the supporting wheel 621 moves towards the first position) along the axial direction of the output shaft 611, so that the supporting wheel 621 moves back and forth between the first position and the second position. The tension members 20 are arranged side by side around the outer side wall of the support wheel 621 to prevent the tension members 20 from being knotted or twisted together when the tension members 20 are separated from or twisted on the support wheel 621.

In a specific implementation, the supporting wheel 621 includes a first wheel body 6211 and a first extending portion 6212 coaxially connected to the first wheel body 6211, the pulling member 20 is located on an outer side wall of the first wheel body 6211, the first extending portion 6212 extends toward an outer side of the first wheel body 6211, and the first extending portion 6212 is inserted or sleeved on the fixed wheel 622 and is connected to the fixed wheel 622 through a screw thread.

Specifically, the driving member 610 drives the first wheel body 6211 to rotate forward or backward, and the threads of the first extending portion 6212 and the fixed wheel 622 are engaged with each other, so as to drive the first wheel body 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 short, and during the process that the first wheel body 6211 moves towards the fixed wheel 622, the problem that the first wheel body 6211 is separated from the output shaft 611 may occur. FIG. 6 is a schematic structural diagram of a support wheel of the strength training machine according to an embodiment of the present invention; FIG. 7 is a schematic view of another angle of the support wheels of the strength training machine according to the embodiment of the present invention; FIG. 8 is a schematic structural view of an extension member of the strength training machine according to the embodiment of the present invention. Referring to fig. 5 to 8, in some embodiments, the output wheel assembly 620 further includes an extension 623, the extension 623 is sleeved on the output shaft 611, the support wheel 621 and the fixed wheel 622 are sleeved on the extension 623, the extension 623 and the support wheel 621 rotate synchronously with the output shaft 611, and the support wheel 621 can slide along the extension direction of the extension 623.

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

With continued reference to fig. 3 to 5, in the strength training machine provided by the present application, the counterweight mechanism 600 further includes a fixing bracket 630, the driving element 610 and the fixing wheel 622 are both connected to the fixing bracket 630, so that the driving element 610 and the fixing wheel 622 are relatively fixed, and the detecting element 31 is located between the fixing bracket 630 and the supporting wheel 621. The detecting member 31 is disposed between the fixing bracket 630 and the supporting wheel 621, thereby facilitating 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 6211, the supporting portion 632 has a mounting hole 6321, the pulling 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 surface of the fixed wheel 622 and is connected to the fixed wheel 622.

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

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

The detecting element 31 may be connected to the bracket 32 by screws, a portion of the bracket 32 connected to the detecting element 31 extends between the supporting portion 632 and the first wheel 6211 through the access opening 6322, and is connected to the first connecting portion 631 by screws, and the bracket 32 may be connected to the first connecting portion 631 by screws on a side of the first connecting portion 631 facing the driving element 610, thereby facilitating fixing the bracket 32.

In a specific implementation, the bracket 32 may be in a zigzag shape, one end of the bracket 32 serves as a handheld end, the other end of the bracket 32 is provided with the detecting member 31, and the detecting member 31 extends toward the first wheel body 6211 so that the supporting wheel 621 contacts the detecting member 31 when in the first position to trigger the detecting member 31, after the detecting member 31 is triggered, the controller sends a signal to the driving member 610 to stop operating.

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

Specifically, the supporting protrusion 6323 may be perpendicular to the supporting portion 632, a mounting hole 6321 penetrating through the supporting portion 632 and the supporting protrusion 6323 is disposed on the supporting protrusion 6323, and an inner edge profile of the mounting hole 6321 matches an outer edge profile of the tension member 20, for example, the tension member 20 has a circular cross-section, the mounting hole 6321 is a circular hole having an inner diameter equal 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 the movement of the tension member 20. The connecting buckle 21 is provided to facilitate the user to lift the pulling member 20 or connect the pulling member 20 with other auxiliary equipment.

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

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 threadedly connected to the second extending portion 6222, 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, a connection area of the second connection portion 633 and the fixed wheel 622 is increased, thereby stably connecting the fixed bracket 630 and the fixed wheel 622.

Optionally, the present application provides a strength training machine, wherein the first wheel body 6211 has a receiving cavity 6214 on a side facing the second extending portion 6222, and at least a portion of the second extending portion 6222 is inserted into the receiving cavity 6214 in the second position. Therefore, the structure of the counterweight mechanism 600 is compact, and the occupied area of the counterweight mechanism 600 is reduced.

Fig. 9 is a cross-sectional view of section C-C in fig. 4. Referring to fig. 4 to 9, in the strength training machine provided by the present application, the tension member 20 is a tension belt or a tension rope, a spiral accommodating groove 6215 is formed in an outer side wall of the supporting wheel 621, the accommodating groove 6215 extends spirally around the outer side wall of the supporting wheel 621, and the tension rope is located in the accommodating groove 6215; the pulling force rope includes the wire rope body 22 and anti friction fag end 23, and anti friction fag end 23 includes at least one deck parcel layer, and the parcel layer encloses to establish and wraps up in the circumference outside of wire rope body 22, and the parcel layer is Kevlar layer or polyethylene weaving layer. The Kevlar layer or the polyethylene braided layer is used as the wrapping layer, so that the bearing and the strength of the tension piece 20 are ensured, and the wear resistance of the tension piece 20 is improved.

FIG. 10 is a schematic diagram of a folding configuration of the strength training machine according to an embodiment of the present invention; FIG. 11 is a first schematic diagram illustrating a power training machine according to an embodiment of the present invention during deployment; FIG. 12 is a second schematic diagram illustrating a power training machine according to an embodiment of the present invention during deployment; FIG. 13 is a third schematic view of the strength training machine according to the embodiment of the present invention during deployment; FIG. 14 is a schematic structural diagram of a power training machine according to an embodiment of the present invention in an unfolded state; FIG. 15 is a schematic view of another embodiment of the present invention showing the power training machine in an unfolded state; FIG. 16 is a connection diagram of a first frame and a cushioning mechanism of a strength training machine according to an embodiment of the present invention; FIG. 17 is a schematic view of a structure of a connecting handle of the strength training machine according to the embodiment of the present invention; fig. 18 is a connection diagram of a first bracket and a second bracket of the strength training machine according to the embodiment of the invention.

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 frame 100 and a second frame 200, the first frame 100 includes a first frame first end 100a and a first frame second end 100b, the second frame 200 includes a second frame first end 200a and a second frame second end 200b, the first frame first end 100a is hinged to the second frame first end 200a, and the first frame second end 100b and the second frame second end 200b are movable toward or away from each other to switch the first frame 100 and the second frame 200 between the folded state and the unfolded state. Wherein a weight mechanism 600 is connected to at least one of the first stand 100 and the second stand 200.

Specifically, as shown in fig. 17 and 18, the first bracket first end 100a is hinged to the second bracket first end 200a by a connecting handle 500. The first end 100a of the first bracket has at least two first connecting members 110, the first end 200a of the second bracket has at least two second connecting members 210, the first connecting members 110 and the second connecting members 210 are disposed in a one-to-one correspondence, the connection handle 500 includes a handle body 510, both ends of the handle body 510 have connecting portions 512, and each connecting portion 512 is hinged to the corresponding first connecting member 110 and second connecting member 210, for example, by a connection pivot.

It is understood that the connection handle 500 may be located at the middle region of the first end 100a or the first end 200a of the first stand, so that the first stand 100 and the second stand 200 are uniformly stressed when the single-handed strength training machine is folded.

In particular implementation, the first connecting member 110 and the second connecting member 210 have a gap therebetween, thereby preventing interference between the first stand 100 and the second stand 200 during folding of the strength training machine. The end of the first connecting member 110 opposite to the end of the second connecting member 210 may be provided with a chamfer, such as a round chamfer, so as to prevent the interference between the first bracket 100 and the second bracket 200 during the folding process of the strength training machine.

When the strength training machine is folded, the connecting handle 500 is pulled, and the first bracket first end 100a and the second bracket first end 200a rise upwards along with the connecting handle 500, so that the first bracket second end 100b and the second bracket second end 200b are driven to be close to each other until abutting, a state shown in fig. 10 is formed, and the folding of the strength training machine is completed. The size of the folded strength training machine is reduced, and the folding strength training machine is convenient to store. Before the strength training machine is unfolded, the first frame second end 100b and the second frame second end 200b are both in contact with the supporting surface 400 (e.g., the ground) of the strength training machine, and a force is applied to the first frame first end 100a and the second frame first end 200a through the connection handle 500 to make the first frame second end 100b and the second frame second end 200b away from each other until the first frame first end 100a and the second frame first end 200a are both in contact with the supporting surface 400, so that the state shown in fig. 14 is formed, and the unfolding of the strength training machine is completed.

However, when both the first bracket first end 100a and the second bracket first end 200a contact the supporting surface 400, the first bracket 100 and the second bracket 200 directly strike the supporting surface 400 due to their own weight, which easily causes damage to the first bracket 100 and the second bracket 200. And the first stand 100 and the second stand 200 may press against the user's feet (the user generally stands in a neutral position when unfolded), resulting in unsafe use and an adverse user experience.

In view of this, in the present embodiment, a buffer mechanism 300 is provided, as shown in fig. 13 and 14, the buffer mechanism 300 is located 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 a support surface 400 of the first bracket 100 or the second bracket 200, and the support 310 can contact the support surface 400 and move toward a hinge of the first bracket 100 and the second bracket 200 when the first bracket 100 and the second bracket 200 are spread away from each other to a preset position.

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

It should be noted that the predetermined position may be the relative position of the first frame 100 and the second frame 200 when the strength training machine is about to be fully deployed, i.e., when the first frame second end 100b and the second frame second end 200b are not in contact with the support surface 400. And the preset position is adaptively designed according to actual requirements. To facilitate the setting of 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 this embodiment, when the first stand 100 and the second stand 200 are spaced apart from each other to be unfolded to a predetermined position, the support member 310 is in contact with the support surface 400, and the first stand 100 and the second stand 200 are supported by the support member 310. Since the support member 310 has a movement damping function with respect to the supporting surface 400 of the first stand 100 or the second stand 200, the movement damping function prevents the support member 310 from moving toward the hinge of the first stand 100 and the second stand 200, that is, the movement damping function prevents the support member 310 from moving toward the first stand first end 100b or the second stand first end 200b, and further the descending speed of the first stand 100 and the second stand 200 is slowed down by the support member 310, thereby realizing the slow descent of the strength training machine during the unfolding process, reducing the impact of the first stand 100 and the second stand 200 on the ground, and avoiding the damage to the first stand 100 and the second stand 200. Meanwhile, the first support 100 or the second support 200 is prevented from hurting the user, and the experience of the user is improved.

In the present embodiment, the support member 310 may rotate about the first stand 100 or the second stand 200 such that the support member 310 moves toward the hinge of the first stand 100 and the second stand 200 or moves toward a side away from the hinge of the first stand 100 and the second stand 200. During the unfolding of the strength training machine, the supporting member 310 moves toward the hinge of the first stand 100 and the second stand 200, and the descending speed of the first stand 100 and the second stand 200 is slowed down by the supporting member 310. During the folding of the strength training machine, the supporting member 310 moves toward a side away from the hinge of the first stand 100 and the second stand 200, whereby the supporting member 310 is restored to the original position to slow down the descending speed of the first stand 100 and the second stand 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 bracket of the strength training machine according to the embodiment of the invention. As shown in fig. 10 to 20, in the strength training machine according to the embodiment of the present invention, the damping mechanism 300 further includes a damping member 320 connected to the support member 310, the damping member 320 is connected to the first frame 100 or the second frame 200, and the support member 310 rotates toward the hinge of the first frame 100 and the second frame 200 to compress the damping member 320 when in the predetermined 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 member 320 is extended to drive the supporting member 310 to rotate toward the side away from the hinge joint of the first stand 100 and the second stand 200.

In this embodiment, motion damping is provided to support 310 by damping assembly 320. When the support member 310 is in contact with the support surface 400 at the time of deployment to the preset position, 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 descending speed of the first bracket 100 and the second bracket 200. In the process of switching the strength training machine from the unfolding state to the folding state, the supporting member 310 is separated from the supporting surface 400, at this time, the compression of the damping member 320 by the supporting member 310 is released, the damping member 320 automatically extends to drive the supporting member 310 to rotate towards the side away from the damping member 320, and meanwhile, the extending force of the damping member 320 jacks up the hinged position of the first support 100 and the second support 200, so that the strength training machine is more labor-saving when being folded, and the strength training machine can be conveniently folded.

In a specific implementation, the damping assembly 320 includes a driving device 321, one end of the driving device 321 in a 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 support 310, and the driving device 321 is used for applying movement damping to the support 310.

In a possible implementation manner, the driving device 321 may be a spring, a first end of the spring in a telescopic direction is connected with the first bracket 100 or the second bracket 200, and a second end of the spring in the telescopic direction is connected with the support 310 in an opposite manner.

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

In order to facilitate the damping assembly 320 to apply movement damping to the support member 310, in the strength training machine according to the embodiment of the invention, the damping assembly 320 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 relative to the mounting bracket 322.

In this embodiment, the supporting member 310 is connected to the first bracket 100 or the second bracket 200 by a mounting bracket 322 to complete the mounting of the supporting member 310. The support member 310 is hinged to the first stand 100 or the second stand 200 by means of a mounting bracket 322, thereby facilitating the rotation of the support member 310 about the first stand 100 or the second stand 200. Drive means 321 is coupled to support member 310 via mounting bracket 322 to facilitate damping of movement of support member 310 by damping assembly 320.

In a specific implementation, the supporting member 310 may be a roller, and the roller is hinged on the mounting frame 322 through a rotating shaft 323, and the 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 roller is disposed on the rotating shaft 323. The rotation of the roller itself reduces the friction between the supporting member 310 and the supporting surface 400, so that the strength training machine can be smoothly unfolded or folded.

In the strength training machine provided by the embodiment of the invention, at least one buffer mechanism 300 is arranged on both 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 arranged in a staggered manner.

Wherein, the first rack 100 and the second rack 200 each comprise a support panel 700 and a plurality of support bars 800 located below the support panel 700, and each support bar 800 and the support panel 700 together enclose a receiving cavity with an opening. In the folded state, at least a part of the supporting members 310 on the first support 100 enter the accommodating cavity of the second support 200 through the opening on the second support 200, and at least a part of the supporting members 310 on the second support 200 enter the accommodating cavity of the first support 100 through the opening on the first support 100, thereby reducing the space occupied by the cushioning mechanism 300.

The supporting rod 800 can be provided with a first connecting seat 810 and a second connecting seat 820, the first connecting seat 810 is located on the supporting rod 800 arranged along the X direction in fig. 20, the second connecting seat 820 is located on the supporting rod 800 arranged along the Y direction in fig. 15, the first connecting seat 810 is hinged to the mounting frame 322, the second connecting 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 buffering mechanism 30 on the first frame 100 is located at a first side of the extending direction, and the buffering mechanism 300 on the second frame 200 is located at a second side of the extending direction, the extending direction is a direction from the first frame second end 100b to the second frame second end 200b when the frame is in the unfolded state, that is, the extending direction is the X direction in fig. 17.

In some embodiments, the weight mechanism 600 is provided on the support panel 700 of the first stand 100 and the support panel 700 of the second stand 200, that is, the weight mechanism 600 is provided on the support panel 700, the support panel 700 provides support for a user when the user stands, and the weight mechanism 600 is provided on the support panel 700 to facilitate the user to lift the tension member 20 on the support panel 700.

In other embodiments, the end surface of first rack second end 100b is inclined toward the bottom surface of first rack 100, the end surface of second rack second end 200b is inclined toward the bottom surface of second rack 200, the end surface of first rack second end 100b and the end surface of second rack second end 200b are both provided with casters 900, and casters 900 provide support for first rack second end 100b and second rack second end 200 b. The caster 900 may be a movable caster or a fixed caster. Thus, the caster 900 is in rolling contact with the support surface 400 during the folding or unfolding process of the strength training machine, so that the folding or unfolding process of the strength training machine is labor-saving.

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

The first and second

shock absorbing pads

120 and 220 may be disposed on at least a portion of the support rod 800, and the first and second

shock absorbing pads

120 and 220 may be disposed at intervals and uniformly. The first and second

shock absorbing pads

120 and 220 may be one of a foam pad, a rubber pad, or a spring. The first shock absorbing pad 120 and the second shock absorbing pad 220 play a shock absorbing role so as to reduce the impact of the first bracket 100 and the second bracket 200 on the supporting surface 400 during the use of the strength training machine.

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

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A strength training machine is characterized by comprising a supporting frame, a counterweight mechanism, a tension member and a detection assembly, wherein the counterweight mechanism is arranged on the supporting frame, the counterweight 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 be driven by the driving member to rotate, and the output wheel assembly can move back and forth between a first position and a second position, the driving member is in an initial state at the first position, and the driving member is in a use state at the second position;

2. The strength training machine of claim 1, wherein the output wheel assembly comprises a support wheel and a fixed wheel fixed relative to the support wheel, the tension members are arranged around the outer side wall of the support wheel side by side, the driving member is used for driving the support wheel to rotate, the support wheel is coaxially connected with the fixed wheel, and the support wheel reciprocates along the axis of the output shaft of the driving member between the first position and the second position relative to the fixed wheel.

3. The strength training machine according to claim 2, wherein the supporting wheel comprises a first wheel body and a first extending portion coaxially connected with the first wheel body, the pulling member is located on an outer side wall of the first wheel body, the first extending portion extends towards an outer side of the first wheel body, and the first extending portion is inserted into or sleeved on the fixed wheel and is in threaded connection with the fixed wheel;

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.

4. The strength training machine of claim 2, wherein the weight mechanism further comprises a fixed bracket, the driving member and the fixed wheel are connected to the fixed bracket so that the driving member and the fixed wheel are relatively fixed, and the detecting member is located between the fixed bracket and the supporting wheel.

5. The strength training machine of claim 3, wherein the fixed bracket comprises a first connecting portion, a supporting portion and a second connecting portion, the first connecting portion and the second connecting portion are both connected with the supporting portion, the first connecting portion is connected with the driving member, the supporting portion covers the first wheel body, the supporting portion is provided with a mounting hole, the pulling member extends to the outer side of the supporting portion through the mounting hole, and the second connecting portion extends towards the side surface of the fixed wheel and is connected with the fixed wheel.

6. The strength training machine of claim 5, wherein the supporting portion has an access opening, the detecting assembly further comprises a bracket connected to the first connecting portion, a portion of the bracket extends between the first connecting portion and the first wheel through the access opening, the detecting member is located on the bracket, and the detecting member is opposite to a side surface of the first wheel facing the output shaft; and/or the detection piece is a travel switch.

7. The strength training machine according to claim 5, wherein a connecting buckle is arranged at one end of the tension member, which is located outside the supporting portion, a supporting protrusion is arranged on one surface of the supporting portion, which faces away from the first wheel body, the mounting hole is arranged on the supporting protrusion, and the mounting hole is matched with the tension member;

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

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

9. Strength training machine according to any of claims 2 to 8, wherein the tension member is a tension belt or a tension rope, the outer side wall of the support wheel is provided with a helical receiving groove, and the tension rope is located in the receiving groove; the tensile 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 in a surrounding mode 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 bracket and a second bracket, the first bracket comprising a first bracket first end and a first bracket second end, the second bracket comprising a second bracket first end and a second bracket second end, the first bracket first end being hinged to the second bracket first end, the first bracket second end and the second bracket second end being movable toward or away from each other to switch the first bracket and the second bracket between the collapsed state and the expanded state;

the cushioning mechanism is located on at least one of the first and second brackets, the cushioning mechanism including a movable support having a movement resistance relative to a support surface of the first or second bracket, the support being movable towards a hinge of the first and second brackets and in contact with the support surface when the first and second brackets are moved away from each other to deploy to a predetermined position.