WO2023273488A1 - 力量训练机 - Google Patents

力量训练机 Download PDF

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Publication number
WO2023273488A1
WO2023273488A1 PCT/CN2022/085162 CN2022085162W WO2023273488A1 WO 2023273488 A1 WO2023273488 A1 WO 2023273488A1 CN 2022085162 W CN2022085162 W CN 2022085162W WO 2023273488 A1 WO2023273488 A1 WO 2023273488A1
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WO
WIPO (PCT)
Prior art keywords
winding
pulley
wheel
reel
assembly
Prior art date
Application number
PCT/CN2022/085162
Other languages
English (en)
French (fr)
Inventor
叶全胜
Original Assignee
广州源动智慧体育科技有限公司
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Publication date
Application filed by 广州源动智慧体育科技有限公司 filed Critical 广州源动智慧体育科技有限公司
Publication of WO2023273488A1 publication Critical patent/WO2023273488A1/zh

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/12—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/06—User-manipulated weights
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/06—User-manipulated weights
    • A63B21/08—User-manipulated weights anchored at one end

Definitions

  • the present application relates to the technical field of fitness equipment, in particular to a strength training machine.
  • a motor In order to make the size of the existing strength training equipment more compact, a motor is generally used as a resistance source, and the motor outputs a corresponding torque to the handle assembly to simulate a counterweight and generate counterweight resistance on the handle assembly.
  • the resistance sources corresponding to each handle assembly are also located at both ends of the apparatus to provide matching and Heavy resistance, and achieve a variety of training movements.
  • each handle assembly is driven by an independent resistance source, resulting in poor consistency of the pulling force of the counterweight provided by the resistance sources on both sides.
  • the embodiment of the present application provides a strength training machine, and the consistency of the pulling force of the counterweight received by the two handle assemblies is better.
  • the present application provides a strength training machine, which includes a bracket and a tension mechanism arranged on the bracket.
  • the tension mechanism includes a distribution mechanism, a counterweight assembly and two handle assemblies;
  • the distribution mechanism includes a pulley assembly, and the pulley assembly includes the first A movable pulley and a first pull cord wound around the wheel surface of the first movable pulley;
  • each handle assembly includes a second pull cord, and the rope segments on both sides of the first pull cord that are away from the first movable pulley are respectively connected with the two second pulleys.
  • the rope is linked, and the second pull rope can be used by the user to apply pulling force;
  • the counterweight assembly includes a resistance source, which is used to drive the first moving pulley to move, and apply a counterweight pulling force to the two second pull ropes through the first pull rope .
  • the moving speed of the second pull rope is greater than the moving speed of the first pull rope.
  • both handle assemblies include handles, and the handle included in the same handle assembly is connected to the second pull cord, and the two handle assemblies are respectively located on opposite sides of the bracket.
  • the pulley assembly further includes a pulley support and a guide rod arranged on the bracket, the first movable pulley is rotatably supported on the pulley support, and a pulley support is provided on the pulley support to cooperate with the guide rod.
  • the guide part can move relatively along the guide rod to limit the moving direction of the pulley support.
  • the length direction of the guide rod is along the relative direction of the two handle assemblies; and/or a through cavity is formed in the guide part, the guide rod is inserted into the through cavity, and the pulley support passes through the guide part Hang on the guide rod.
  • the counterweight assembly includes a mounting support, a driving wheel rotatably supported on the mounting support, and a tension belt that can be wound on the driving wheel, and the mounting support is fixed on the bracket
  • the counterweight assembly also includes a second movable pulley, one end of the tension belt is fixed on the drive wheel, the other end is relatively fixed to the bracket, and part of the structure of the tension belt is straddled on the second movable pulley; the wheel core of the second movable pulley forms a counterweight output terminal of the device.
  • the tension band is a flat belt, and when the tension band is wound on the driving wheel, the thickness direction of the tension band is along the radial direction of the driving wheel.
  • the distribution mechanism further includes two sets of winding wheel assemblies arranged on the bracket, and each winding wheel assembly is provided with an annular first winding groove and a second winding groove;
  • the two ends of a pull cord are respectively connected in the first winding slots of the two reel assemblies, and part of the rope segments close to the two ends of the first pull cord can be respectively wound in the corresponding first winding slots above;
  • the handle assembly also includes a second pull cord, the first end of each second pull cord is connected to the handle, and the second end of each second pull cord is respectively connected to the second winding slots of the two reel assemblies, And each second pull cord can be wound on the corresponding second winding groove;
  • each reel assembly when the second pull cord is released on the corresponding second winding groove, the first pull rope is wound on the corresponding first winding groove, and the second pull rope is wound on the corresponding second winding groove.
  • the release speed on the first pull cord is greater than the winding speed of the first pull cord on the corresponding first winding groove.
  • the setting positions of the two groups of reel assemblies correspond to the setting positions of the two handle assemblies respectively.
  • the axial directions of the reels in the two groups of reel assemblies are parallel, and the arrangement directions of the reels in the two groups of reel assemblies are opposite to the support.
  • one of the two sets of reel assemblies is located on the same side of the frame as the counterweight assembly.
  • each reel assembly includes a reel, and the reel is rotatably supported on the bracket;
  • Each winding wheel includes a first winding segment and a second winding segment; the first winding groove is located on the first winding segment and extends along the circumferential direction of the first winding segment; the second winding groove is located on the second winding segment, And extend along the circumferential direction of the second winding segment; the diameter of the groove bottom of the second winding groove is larger than the diameter of the groove bottom of the first winding groove.
  • each reel assembly includes a first reel and a second reel rotatably supported on a bracket, the first reel is located on the first reel,
  • the first winding wheel includes a first gear, the first gear is located on the outer peripheral surface of the first winding wheel and arranged side by side with the first winding slot; the second winding slot is located on the second winding wheel, and the second winding
  • the wheel includes a second gear, the second gear is located on the outer peripheral surface of the second winding wheel and is arranged in parallel with the second winding slot, the first gear and the second gear mesh with each other, and the meshing transmission of the second gear and the first gear
  • the speed ratio is greater than 1.
  • the two groups of reel assemblies include a third reel, and the third reel and the counterweight assembly are located on opposite sides of the bracket;
  • the distribution assembly also includes a guide unit, the guide unit includes a first fixed pulley and a second fixed pulley fixed on the bracket, the third winding wheel is located between the first movable pulley and the first fixed pulley, and the second fixed pulley is located between the third winding The side of the line wheel away from the first fixed pulley;
  • the rope segment between the two ends of the first stay rope passes over the first movable pulley, the first fixed pulley and the second fixed pulley successively.
  • the axial direction of the first fixed pulley, the axial direction of the first movable pulley, and the axial direction of the second fixed pulley are parallel.
  • the two groups of reel assemblies include a fourth reel, and the fourth reel is located on the same side of the support as the counterweight assembly;
  • the guide unit also includes a third fixed pulley, the third fixed pulley is located between the second fixed pulley and the fourth winding wheel, and the winding wheel in the winding wheel assembly on the same side as the counterweight assembly is the fourth winding wheel ; and the rope segment between the two ends of the first stay rope successively crosses the first movable pulley, the first fixed pulley, the second fixed pulley and the third fixed pulley.
  • the strength training machine provided by the application includes a bracket and a tension mechanism arranged on the bracket.
  • the tension mechanism includes a distribution mechanism, a counterweight assembly and two handle assemblies;
  • the user can apply pulling force;
  • the counterweight assembly includes a resistance source, which is used to drive the first movable pulley to move, and apply counterweight pulling force to the two second stay ropes through the first stay rope.
  • the first movable pulley can output from an input source (i.e. input to the first movable pulley) counterweight pulling force) is divided into two outputs of the same size (ie, the force output from the two ends of the first pull cord). Since the two parts of the first pulley that are away from the first pulley are respectively linked with the two second pulleys, the output from one direction of the counterweight assembly can be evenly distributed to the two through the first pulley and the first pulley. in the second pull cord.
  • the strength training machine only needs one counterweight source to provide the counterweight pulling force for the two handle assemblies, compared with the situation in the prior art that two counterweight sources are required to provide the counterweight pulling force for the two handle assemblies , on the one hand, the cost is reduced, and the difficulty of control is also reduced. On the other hand, since the counterweight pulling force of the two handle assemblies comes from the same counterweight source and is evenly distributed by the first moving pulley and the first pulley, the two The pull force of the counterweight on each handle assembly is more consistent.
  • Figure 1a is a schematic diagram of the overall structure of the strength training machine provided by the embodiment of the present application.
  • Figure 1b is a schematic view of the structure of the strength training machine provided by the embodiment of the present application viewed from the bottom;
  • Figure 2a is a schematic diagram of the principle of the strength training machine provided by the embodiment of the present application.
  • Fig. 2b is another schematic diagram of the principle of the strength training machine provided by the embodiment of the present application.
  • FIG. 3 is a schematic structural view of the counterweight assembly in the strength training machine provided by the embodiment of the present application.
  • FIG. 4 is a schematic diagram of the exploded structure of the counterweight assembly in the strength training machine provided by the embodiment of the present application;
  • FIG. 5 is a schematic structural view of the pulley assembly in the strength training machine provided by the embodiment of the present application.
  • Fig. 6 is a schematic structural view of the guide rod installed on the bracket in the strength training machine provided by the embodiment of the present application;
  • FIG. 7 is a schematic structural view of the pulley assembly installed on the bracket in the strength training machine provided by the embodiment of the present application;
  • FIG. 8 is a schematic diagram of an exploded structure of the reel assembly in the strength training machine provided by the embodiment of the present application.
  • FIG. 9 is a schematic structural view of the reel assembly on the bracket in the strength training machine provided by the embodiment of the present application.
  • FIG. 10 is a schematic diagram of an exploded structure of another structure of the reel assembly in the strength training machine provided by the embodiment of the present application.
  • Fig. 11 is a schematic diagram of the overall structure of another structure of the reel assembly installed on the bracket provided by the embodiment of the present application;
  • Fig. 12 is a bottom view of another structure of the reel assembly installed on the bracket in the strength training machine provided by the embodiment of the present application.
  • Existing strength training equipment generally has two handle assemblies, and the user can realize various training actions by operating the two handle assemblies.
  • the existing strength equipment has the problem that the pulling force consistency of the two handle components is poor. This is because the two handle components use independent motors as resistance sources. Using two motors is not only costly, but also the output of the two different motors is difficult to ensure consistency due to differences in parameters and operating conditions. sex.
  • the strength training machine of the present application adopts a counterweight assembly that is divided into two paths through the first movable pulley, and provides counterweight pulling force for the two handle assemblies at the same time, so the consistency of the pulling force on the two handle assemblies is better.
  • Figure 1a is a schematic diagram of the overall structure of the strength training machine provided by the embodiment of the present application
  • Figure 1b is a schematic structural view of the strength training machine provided by the embodiment of the present application viewed from the bottom
  • Figure 2a is the strength training machine provided by the embodiment of the present application
  • Fig. 2b is another schematic diagram of the strength training machine provided by the embodiment of the present application.
  • the strength training machine 100 includes a bracket 101 and a tension mechanism arranged on the bracket 101 .
  • the tension mechanism includes a distribution mechanism 1 , a counterweight assembly 2 and two handle assemblies 3 .
  • Distribution mechanism 1 comprises pulley assembly 11, and pulley assembly 11 comprises first movable pulley 111 and the first pull rope 112 that is wound on the first movable pulley 111 partial wheel surface; Both ends of the rope 112 are respectively linked with the two second pulleys 32 , that is, the rope segments on both sides of the first pulley 112 away from the first movable pulley 111 are respectively linked with the two second pulleys 32 .
  • the second pull cord 32 can be used by the user to apply pulling force; and the moving speed of the second stay rope 32 is greater than the moving speed of the first stay rope 112, the counterweight assembly 2 includes a resistance source 26, and the resistance source 26 is used to drive the first movable pulley 111 move to apply counterweight pulling force to the two second pull ropes 32 through the first pull rope 112 .
  • the first movable pulley 111 can transfer the The output (that is, the pulling force of the counterweight input to the first movable pulley) is divided into two outputs (that is, the forces output from both ends of the first pull cord) of the same magnitude. Since the two parts of the first pulley 112 that are away from the first movable pulley 111 are respectively linked with the two second pulleys 32, the output from the counterweight assembly 2 in one direction can pass through the first movable pulley 111 and the first pulley.
  • the strength training machine 100 since the strength training machine 100 only needs one counterweight source to provide the counterweight pulling force for the two handle assemblies 3 , it is different from the prior art that requires two counterweight sources to provide the counterweight pulling force for the two handle assemblies 3 . Compared with the situation, on the one hand, the cost is reduced, and the control difficulty is also reduced; Therefore, the consistency of the pulling force of the counterweight on the two handle assemblies 3 is better.
  • first movable pulley 111 and the first pull cord 112 are used to cooperate with each other to realize the distribution of the pulling force of the counterweight.
  • This cooperation belongs to rolling cooperation, and the resistance generated during the distribution process is small, the loss of force is small, and it is easier for the user to The rope is pulled, and this distribution process has less effect on the counterweight pull.
  • the moving speed of the second pull cord 32 is greater than the moving speed of the first pull cord 112 , the distance the user pulls the second pull cord 32 is always greater than that of the first pull cord 112 at the same time.
  • the moving stroke that is, the stroke that the user pulls the second pull cord 32 is always greater than twice the moving stroke of the first movable pulley 111, which is the same as the stroke that the user pulls the handle assembly and twice the moving stroke of the first movable pulley 111.
  • the moving stroke of the second pull cord 32 that can be pulled by the user in this application is larger.
  • the length of the bracket 101 can be reduced, so that the structure of the entire strength training machine 100 is relatively compact , smaller in size.
  • the bracket 101 may be formed as a frame-shaped member for the purpose of light weight, and a structure such as a reinforcing beam 1012 is connected inside the frame-shaped member to reinforce the frame-shaped member.
  • the bracket 101 may include a reinforcing beam 1012 and a frame-shaped bracket body 1011.
  • the number of reinforcing beams 1012 can be selected according to needs.
  • two reinforcing beams 1012 are used as an example for illustration.
  • the two reinforcing beams 1012 are arranged at intervals between On the inner side of the frame-shaped support body 1011 .
  • the pulling mechanism includes two handle assemblies 3, and the handle assemblies 3 are used to be pulled by the user for training. There can be a certain distance between the two handle assemblies 3 to meet the specific needs of users.
  • the two handle assemblies 3 may be respectively located on the bracket 101 , for example, on opposite sides of the bracket body 1011 .
  • both handle assemblies 3 include a handle 31 , and the handle 31 included in the same handle assembly 3 is connected to the second pull cord 32 .
  • the handle assembly can also include a long rod, and two second drawstrings are respectively connected to the two ends of the long rod; Two second drawstrings are connected.
  • the strength training machine 100 can be used in two states: horizontal or vertical.
  • the bracket 101 can be placed horizontally or vertically.
  • the strength training machine 100 shown in FIG. roughly parallel.
  • the length direction of the bracket body 1011 can be along the relative direction D of the two handle assemblies 3 .
  • bracket 101 For the vertical placement of the bracket 101, it means that the frame-like plane of the bracket body 1011 is placed approximately perpendicular to the ground. Let me repeat.
  • a foot 1013 is provided at the bottom of the support body 1011 for supporting the support body 1011, and a pad 1014 is provided at the bottom of the support leg 1013 to play a buffering role, or when the ground is uneven, Play the effect of raising the leg 1013.
  • the pulley assembly 11 includes a first movable pulley 111 and a first pulley 112 wound on a part of the wheel surface of the first movable pulley 111 , where the first pulley 112 is wound around the first movable pulley 111 Part of the wheel surface means that the first pull rope 112 straddles a part of the wheel surface of the first movable pulley 111 .
  • the two parts of the first stay rope 112 that are away from the first movable pulley 111 are linked with the two second stay ropes 32 respectively.
  • the corresponding two second pull ropes 32 are pulled back respectively; on the other hand, it means that the two second pull ropes 32 are pulled back
  • the two rope segments of the first pull rope 112 away from the first movable pulley 111 move accordingly, driving the first movable pulley 111 to move away from the counterweight assembly 2 .
  • the counterweight assembly 2 When the counterweight assembly 2 drives the first movable pulley 111 to move, it can apply a counterweight pulling force to the two second pull ropes 32 through the first pull rope 112 .
  • the two second pull ropes 32 can apply a force away from the counterweight assembly 2 to the first movable pulley 111 through the first pull rope 112 , so that the first movable pulley 111 moves away from the counterweight assembly 2 .
  • FIG. 3 is a schematic structural diagram of a counterweight assembly in a strength training machine provided in an embodiment of the present application
  • FIG. 4 is a schematic diagram of an exploded structure of a counterweight assembly in a strength training machine provided in an embodiment of the present application.
  • the counterweight assembly 2 includes a mounting support 21, a driving wheel 22 rotatably supported on the mounting support 21, and a tension belt 23 that can be wound on the driving wheel 22, and the mounting support 21 fixed on the bracket 101.
  • the mounting bracket 21 includes a connecting portion 212 and two mounting arms 211 arranged at intervals.
  • the connecting portion 212 can connect the two mounting arms 211 .
  • the connecting portion 212 can be connected to the bracket 101 through fasteners or the like.
  • the driving wheel 22 is located in the space between the two mounting arms 211 , and the two ends of the driving wheel 22 are respectively supported on the two mounting arms 211 through bearings or the like.
  • the tension band 23 is wound on the drive wheel 22 specifically means that one end of the tension band 23 is fixed on the drive wheel 22, the drive wheel 22 can rotate, and the tension band 23 can be gradually wound during the rotation of the drive wheel 22. on the drive wheel 22.
  • the other end of the tension band 23 is relatively fixed to the bracket 101 , that is, the other end of the tension band 23 can be fixed on the bracket 101 .
  • the counterweight assembly 2 also includes a second movable pulley 24 , the other end of the pulley 23 is located on the same side of the second movable pulley 24 as the driving pulley 22 , and part of the structure of the pulley 23 straddles the second movable pulley 24 , The wheel core of the second movable pulley 24 thus forms the output end 25 of the counterweight assembly.
  • tension band 23 is wound on the driving wheel 22, because the other end of tension band 23 is fixed on the bracket 101, the part of tension band 23 that is not wound on the driving wheel 22 The length becomes smaller and smaller, and the second movable pulley 24 gradually moves toward the direction close to the driving wheel 22 .
  • the counterweight assembly 2 includes a resistance source 26, and the resistance source 26 may be a component with a rotational output such as a motor.
  • the resistance source 26 can be fixed on the mounting support 21 , and the driving wheel 22 can be connected to the output shaft of the resistance source 26 .
  • the second movable pulley 24 can double the pulling force of the counterweight output by the tension belt 23 .
  • the other end of tension band 23 is fixed on the bracket 101, and that part of tension band segment of tension band 23 away from second movable pulley 24 can be lengthened or shortened along with the rotation of drive wheel 22, and second movable pulley 24 is practical like this Played the effect of movable pulley, the power of output F cattle on the tension belt 23, after the doubling of second movable pulley 24, the power that the wheel core place output of the second movable pulley 24 becomes 2F cattle.
  • the counterweight pulling force output by the resistance source is doubled after passing through the second moving pulley 24, and then after passing through the first moving pulley 111, it is divided into two paths and output to the two handle assemblies 3.
  • the counterweight pulling force obtained on the two handle assemblies 3 The pulling force of the counterweight output by the resistance source is the same, so the two handle assemblies 3 can get a sufficient output without increasing the power of the resistance source, which can reduce the cost of the strength training machine.
  • the tension band 23 is a flat strip, and when the tension band 23 is wound on the driving wheel 22 , the thickness direction of the tension band 23 is along the radial direction of the driving wheel 22 . In this way, the moment arm of the force output by the tension band 23 can be reduced, and when the torque output by the resistance source 26 is constant, the force output by the tension band 23 is greater. That is, under the same torque of the resistance source 26, more force can be output.
  • the resistance source 26 is used to drive the first movable pulley 111 to move including two situations. 2a, as an optional embodiment, the resistance source 26 is used to drive the first moving pulley 111 to move away from the counterweight assembly 2.
  • the strength training machine 100 may include a pulley 103 connected to the bracket 101 With pulley 104, pulley 103 and pulley 104 are relatively arranged, and the relative direction of pulley 103 and pulley 104 is perpendicular to the moving direction of second movable pulley 24; Connecting rope 102 is connected between the first movable pulley 111 and the second movable pulley 24, specifically One end of the connecting rope 102 is connected to the wheel core of the second movable pulley 24, and the other end is connected to the wheel core of the first movable pulley 111 after crossing the pulley 103 and the pulley 104, so that the linkage of the first movable pulley 111 and the second movable pulley 24 can be realized .
  • the resistance source 26 is used to drive the first movable pulley 111 to move toward the counterweight assembly 2 .
  • the first movable pulley 111 and the second movable pulley 24 are relatively fixed, and the two can be relatively fixed through a pulley support 113 described later.
  • the tension belt 23 was wound on the driving wheel 22 connected to the resistance source 26
  • the second movable pulley 24 moved towards the direction close to the resistance source 26
  • the first movable pulley 111 also moved towards the direction close to the resistance source 26 .
  • the situation shown in FIG. 2b is taken as an example for description.
  • the situation shown in FIG. 2a is similar to that shown in FIG. 2b , and details are not repeated here.
  • the counterweight assembly 2 When the counterweight assembly 2 drives the first movable pulley 111 to move, it can apply a counterweight pulling force to the two second pull ropes 32 through the first pull rope 112 .
  • the two second pulleys 32 can apply a force close to the counterweight assembly 2 to the first movable pulley 111 through the first pulley 112 , so that the first movable pulley 111 moves toward the direction of the counterweight assembly 2 .
  • Figure 5 is a schematic structural view of the pulley assembly in the strength training machine provided by the embodiment of the present application
  • Figure 6 is a schematic structural view of the guide rod installed on the bracket in the strength training machine provided by the embodiment of the present application
  • Figure 7 is a schematic view of the structure provided by the embodiment of the present application Schematic diagram of the structure of the pulley assembly mounted on the bracket in the strength training machine of .
  • the pulley assembly 11 includes a first movable pulley 111 and a first pulley 112 .
  • first movable pulley 111 In order to guide the movement of the first movable pulley 111 toward or away from the driving wheel 22 , it may be considered to provide a guiding structure for the pulley assembly 11 .
  • the pulley assembly 11 further includes a pulley support 113 and a guide rod 114 provided on the bracket 101 , and the first movable pulley 111 is rotatably supported on the pulley support 113 .
  • both sides of the wheel core of the first movable pulley 111 may be rotatably supported on the pulley support 113 through bearings or the like.
  • the pulley support 113 is provided with a guide portion 1131 matched with the guide rod 114 , and the guide portion 1131 can move relatively along the guide rod 114 to limit the moving direction of the pulley support 113 . In this way, the guide rod 114 restricts the moving paths of the pulley support 113 and the first movable pulley 111 .
  • a through cavity 1132 is formed in the guide portion 1131 , the guide rod 114 is inserted into the through cavity 1132 , and the pulley support 113 is suspended on the guide rod 114 through the guide portion 1131 .
  • the wheel core of the second movable pulley 24 is used as the output end 25 of the counterweight assembly, and can be relatively fixed to the wheel core of the first movable pulley 111 .
  • both the second movable pulley 24 and the first movable pulley 111 can be rotatably supported on the pulley support 113, so as to realize the rotation of the wheel core of the first movable pulley 111 and the wheel core of the second movable pulley 24. relatively fixed.
  • the pulley support 113 includes a support body 1133 , and two first installation arms 1134 and two second installation arms 1135 disposed on the support body 1133 .
  • the two first mounting arms 1134 are spaced apart, and the two second mounting arms 1135 are also spaced apart.
  • the axle or both ends of the wheel core of the first movable pulley 111 are respectively supported on two first installation arms 1134 ; the axle or both ends of the wheel core of the second movable pulley 24 are respectively supported on two second installation arms 1135 .
  • the second installation arm 1135 protrudes from the support body 1133 toward the driving wheel 22
  • the first installation arm 1134 protrudes from the support body 1133 in a direction away from the driving wheel 22 .
  • the axle of the first movable pulley 111 is perpendicular to the axle of the second movable pulley 24 . That is, the end surface of the first movable pulley 111 on the side of the wheel body is substantially parallel to the top surface of the first mounting arm 1134 , so that the guiding portion 1131 can be provided on the top surface of the first mounting arm 1134 .
  • the first movable pulley 111 and the second movable pulley 24 are arranged side by side in the moving direction of the pulley support 113 .
  • the guide part 1131 may include a first hook piece 1136 disposed on the first installation arm 1134 , a second hook piece 1137 , and a first hook piece 1136 and a second hook piece connected to each other.
  • the connection portion 1138 between the second hooking pieces 1137, the first hanging piece 1136 and the second hanging piece 1137 are arranged at intervals.
  • the first hooking piece 1136 , the second hooking piece 1137 and the connecting portion 1138 jointly define a through cavity 1132 for accommodating the guide rod 114 .
  • the connecting portion 1138 may be a roller, and the wheel surface of the roller is in rolling contact with the guide rod 114 , so that the movement resistance of the pulley support 113 along the guide rod 114 is smaller.
  • the length direction of the guide rod 114 is along the relative direction D of the two handle assemblies 3 .
  • FIG. 8 is a schematic diagram of an exploded structure of the reel assembly in the strength training machine provided by the embodiment of the present application
  • FIG. 9 is a schematic view of the structure of the reel assembly on the bracket in the strength training machine provided by the embodiment of the present application.
  • the dispensing mechanism 1 also includes two groups of reel assemblies 5 arranged on the bracket 101, and the distributing mechanism 1 also includes two groups of reel assemblies 5 arranged on the bracket 101, each winding
  • the reel assemblies 5 are provided with annular first winding grooves 54 and second winding grooves 55; , and part of the rope segments near the two ends of the first pull rope 112 can be respectively wound on the corresponding first winding slots 54 .
  • the handle assembly 3 also includes a handle 31, the first end of each second pull cord 32 is connected to the handle 31, and the second end of each second pull cord 32 is respectively connected to two On the second winding groove 55 of the winding wheel assembly 5 , each second pull cord 32 can be wound on the corresponding second winding groove 55 .
  • each reel assembly 5 when the second pull cord 32 is released on the corresponding second winding groove 55, the first pull cord 112 is wound on the corresponding first winding groove 54, and the second pull cord 32 is The release speed corresponding to the second winding slot 55 is greater than the winding speed of the first pull cord 112 corresponding to the first winding slot 54 . That is, the moving speed of the aforementioned second pull rope 32 is greater than the moving speed of the first pull rope 112 .
  • the release speed of the second stay cord 32 connected to the handle 31 is greater than the winding speed of the first stay cord 112, and at the same time, the stroke that the handle 31 moves is greater than the stroke that the first stay cord 112 moves, that is The moving stroke of the handle 31 is greater than the moving stroke of the first movable pulley 111, which is suitable for people with taller heights. In other words, even if the stroke of the handle 31 is larger for people with higher stature, the stroke reflected on the first movable pulley 111 is also small. Therefore, the length of the bracket 101 can be reduced, and the structure of the entire strength training machine 100 is relatively compact. Smaller footprint and lower costs.
  • each reel assembly 5 includes only one reel 51, and the reel 51 is rotatably supported on the bracket 101 on.
  • the reel assembly 5 further includes a reel support 52, and the reel support 52 includes two support arms 521 and a main body portion 522 connected between the two support arms 521. , the main body part 522 is fixed on the bracket 101;
  • the ends of the two support arms 521 are respectively provided with a first bearing seat 523 and a second bearing seat 524, and the reel 51 can be rotatably supported on the reel support by the first bearing seat 523 and the second bearing seat 524. 52 on.
  • the reel 51 includes a first winding section 511 and a second winding section 512; the first winding groove 54 is located on the first winding section 511 and extends along the circumferential direction of the first winding section 511; the second winding groove 55 is located The second winding segment 512 extends along the circumference of the second winding segment 512 ; the diameter of the bottom of the second winding slot 55 is greater than the diameter of the bottom of the first winding slot 54 .
  • the two ends of the first stay cord 112 are respectively connected in the first winding slots 54 on the first winding sections 511 of the two reels 51, and the rope sections near the two ends of the first stay cord 112 can be wound respectively. wound in the first winding groove 54 on the corresponding first winding section 511;
  • the handle assembly 3 also includes a second pull cord 32, the first end of each second pull cord 32 is connected to the handle 31, and the second end of each second pull cord 32 is respectively connected to the second winding section of the two reels 51. 512 in the second winding groove 55 , and each second pull cord 32 can be wound in the second winding groove 55 in the second winding segment 512 of the corresponding winding wheel 51 .
  • the diameter of the groove bottom of the second winding groove 55 is larger than the diameter of the groove bottom of the first winding groove 54, for example, the diameter of the groove bottom of the second winding groove 55 is equal to that of the first winding groove 55.
  • the diameter of the groove bottom surface of the groove 54 is n (n>1) times, since the first winding segment 511 and the second winding segment 512 rotate synchronously, during the rotation of the winding wheel 51, the second winding groove 55
  • the length of the newly released second pull rope 32 during this process is n times the length of the first pull rope 112 newly wound by the first winding segment 511 during this process.
  • the first movable pulley 111 moves a distance of a/2n.
  • the moving stroke of the pulley assembly 11 can be reduced by adopting the reel assembly 5 in the present application, which can Make the structure of the whole strength training machine 100 more compact.
  • the reel assembly 5 also includes a rotating shaft 53 , and a through hole (not shown) extending axially along itself is provided inside the reel 51 , and the reel 51 is sheathed in the rotating shaft. shaft 53, and can move relative to the rotation shaft 53 along the axial direction of the rotation shaft 53.
  • the first bearing seat 523 is provided with a central screw hole 5231, the center screw hole 5231 and the bearing in the first bearing seat 523 are coaxially arranged, corresponding to the central screw hole 5231, the reel 51 also includes a The external thread section 513 on the side of the winding section 511 is inserted into the central screw hole 5231 and screwed with the central screw hole 5231 through transmission threads.
  • the winding process on the first winding section 511 is equidiametric helical winding, and the first stay cord 112 that is wound does not will overlap each other.
  • the second pull cord 32 based on the same reason, its winding is also equidiametrical helical winding.
  • the rotating shaft 53 is a spline shaft, and the inner surface of the through hole on the reel 51 is provided with a spline groove (not shown) matching the spline of the spline shaft. Since the rotating shaft 53 is a structure for transmitting torque, the cooperation of the rotating shaft 53 and the reel 51 as a spline pair will not affect the axial movement of the reel 51 along the rotating shaft 53, nor will it affect the transmission of torque .
  • the external thread segment 513 , the first winding segment 511 and the second winding segment 512 are arranged in sequence along the axial direction of the reel 51 .
  • the first winding section 511 with a smaller diameter and the external thread section 513 are located on the same side of the winding wheel 51 .
  • a rope-through hole (not shown) may be provided on the main body 522, and the second drawstring 32 is passed through the rope-through hole, and the second end of the second drawstring 32
  • a limiting block 525 is arranged on the top, and the outer contour size of the limiting block 525 is larger than the inner diameter of the threading hole, so that the first end and the second end of the second pull cord 32 are located on both sides of the main body 522 . In this way, when the handle 31 is not connected to the second pull cord 32, the second pull cord 32 will not be disengaged from the rope passing hole.
  • the handle 31 Since the user may pull the handle 31 in different directions during strength training, it may be considered to provide a universal sleeve 526 in the rope hole through which the second pull rope 32 can pass.
  • Fig. 1a it can be understood that the second pull cord 32 in the handle assembly 3 needs to be wound on the second winding section 512, so it can be considered that the setting positions of the two sets of winding wheel assemblies 5 are respectively the same as those of the two winding wheel assemblies 5.
  • the setting positions of the handle assembly 3 are corresponding.
  • the axes of the winding wheels 51 in the two winding wheel assemblies 5 are parallel, and the two winding wheels 51 are arranged in opposite directions relative to the bracket 101 .
  • one of the two groups of reel assemblies 5 is located on the same side of the bracket 101 as the counterweight assembly 2 .
  • one set of reel assembly 5 corresponds to the setting position of the counterweight assembly 2.
  • the reel assembly 5 on the left side of the drawing corresponds to the counterweight assembly 2.
  • the reel assembly 5 on the right side of the drawing corresponds to the counterweight assembly 2 .
  • the counterweight assembly 2 and the reel assembly 5 located on the same side of the bracket 101 in the length direction (the relative direction D of the two handle assemblies 3 ) are arranged in sequence in a direction perpendicular to the relative direction D.
  • the driving wheel 22 in the counterweight assembly 2 can be arranged adjacent to the second winding groove 55 in the winding wheel assembly 5 .
  • the axial directions of the reels 51 in the two groups of reel assemblies 5 are parallel, and the arrangement directions of the reels 51 in the two groups of reel assemblies 5 relative to the bracket 101 are opposite.
  • the distribution assembly further includes a guide unit 6, the guide unit 6 includes a first fixed pulley 61 and a second fixed pulley 62 fixed on the bracket 101, and the third winding pulley 514 is located between the first movable pulley 111 and the first Between the fixed pulleys 61, the second fixed pulley 62 is located on the side of the third winding wheel 514 away from the first fixed pulley 61;
  • the reel in the reel assembly 5 on the opposite side with the counterweight assembly 2 is the third reel 514; Pulley 61 and the second fixed pulley 62.
  • the axial direction of the first fixed pulley 61 , the axial direction of the first movable pulley 111 , and the axial direction of the second fixed pulley 62 are parallel.
  • the guide unit 6 can also include a third fixed pulley 63, the third fixed pulley 63 is located between the second fixed pulley 62 and the fourth winding wheel 515, and is located in the winding wheel assembly 5 on the same side as the counterweight assembly 2
  • the winding wheel is the fourth winding wheel 515; and the rope segment between the two ends of the first stay rope 112 successively crosses the first movable pulley 111, the first fixed pulley 61, the second fixed pulley 62 and the third fixed pulley 63 .
  • one end of the first stay cord 112 is fixed on the first winding groove 54 of the third winding wheel 514, and the other end passes over the first movable pulley 111, the first fixed pulley 61, the second fixed pulley 62 and Behind the third fixed pulley 63 , it is fixed on the first winding groove 54 of the fourth winding wheel 515 .
  • the first fixed pulley 61 , the second fixed pulley 62 and the third fixed pulley 63 are used to reverse the direction of the first pulley 112 , so that the first pulley 112 can be wound around the winding wheels on opposite sides of the support 101 superior.
  • FIG. 10 is a schematic diagram of the exploded structure of another structure of the reel assembly in the strength training machine provided by the embodiment of the present application
  • Figure 11 is a schematic diagram of another structure of the reel assembly provided by the embodiment of the present application installed on the bracket
  • FIG. 12 is a bottom view of another structure of the reel assembly installed on the bracket in the strength training machine provided by the embodiment of the present application.
  • the reel assembly 8 includes a first reel 80 and a second reel 81 rotatably supported on the bracket 101, and the first reel 84 is located at the first reel 84.
  • the outer peripheral surface of the first winding wheel 80 is also provided with a first gear 801 arranged side by side with the first winding groove 84; the second winding groove 85 is located on the second winding wheel 81, and the second winding
  • the outer peripheral surface of the wire wheel 81 is also provided with a second gear 811 arranged side by side with the second winding groove 85, and the first winding wheel 80 and the second winding wheel 81 pass through the first gear 801 and the second gear 811.
  • the speed ratio of the meshing transmission of the second gear 811 and the first gear 801 is greater than 1.
  • the speed ratio of the gear transmission between the second gear 811 and the first gear 801 means that when the second pull cord 32 is pulled by the user and released from the second winding groove 85, the first pull cord 112 is driven and gradually Wound on the first winding slot 84 .
  • the reel assembly 5 utilizes the different diameter ratios of the first winding segment 511 and the second winding segment 512 to make the first pull cord 112 and the second pull cord 32 have different winding speeds.
  • the reel assembly 8 is realized by utilizing the difference in speed ratio between the second gear 811 and the first gear 801 .
  • the diameter of the bottom of the first winding groove 84 and the second winding groove 85 there is no specific requirement.
  • the first winding groove 84 and the second winding groove The groove bottom diameter of 85 can be the same.
  • the reel assembly 8 further includes a reel support 82
  • the reel support 82 includes a support body 820 and four support arms arranged on the support body 820, that is, the first The support arm 821, the second support arm 822, the third support arm 823, and the fourth support arm 824, the first reel 80 is rotatably supported on the first support arm 821 and the second support arm 822, the second winding The wire wheel 81 is rotatably supported on the third support arm 823 and the fourth support arm 824 .
  • first support arm 821 and the second support arm 822 are respectively provided with a first bearing seat 827 and a second bearing seat 828, and the two ends of the first reel 80 are respectively supported on the first bearing seat through bearings.
  • first bearing seat 827 and the second bearing seat 828 are respectively provided with a first bearing seat 827 and a second bearing seat 828, and the two ends of the first reel 80 are respectively supported on the first bearing seat through bearings.
  • the ends of the third support arm 823 and the fourth support arm 824 are respectively provided with a third bearing seat 825 and a fourth bearing seat 826, and the two ends of the second reel 81 are respectively supported on the third bearing seat 825 through bearings. And on the fourth bearing seat 826. In this way, the second reel 81 can be rotatably supported on the reel support 82 .
  • the first support arm 821 and the second support arm 822 are arranged oppositely, the third support arm 823 and the fourth support arm 824 are arranged oppositely, the connection line between the first support arm 821 and the second support arm 822,
  • the line connecting the third support arm 823 and the fourth support arm 824 is staggered in the relative direction D of the two handle assemblies 3 , and the first winding wheel 80 and the second winding wheel 81 are in the relative direction D of the two handle assemblies 3 Staggered, so that the first gear 801 and the second gear 811 can mesh with each other.
  • first reel 80 and the second reel 81 The detailed structure of the first reel 80 and the second reel 81 will be described below with reference to FIG. 10 .
  • first winding groove 84 and the first gear 801 are arranged side by side on the first winding wheel 80, and the second winding groove 85 and the second gear 811 are arranged side by side on the second winding wheel 81, which can It is understood that, in order to avoid affecting the winding of the first pull cord 112 and the second pull cord 32, the arrangement positions of the first gear 801 and the second gear 811 are correspondingly the same, for example, the first pulley of the first reel 80
  • the gear 801 faces to the right side of the drawing in FIG. 10
  • the second gear 811 of the second winding wheel 81 faces to the left side of the drawing in FIG. 10 , and the teeth of the two are arranged corresponding to each other.
  • the axial dimension of the first gear 801 is smaller than the axial dimension of the second gear 811, so that the first gear 801 moves along its own axis when the first winding wheel 80 moves, or the second winding wheel 811 moves along its own axial direction.
  • the first gear 801 and the second gear 811 can also maintain the meshing state.
  • the two ends of the first pull cord 112 are respectively connected in the first winding groove 84 in the first reel 80 of the two reel assemblies 8, and the first pull cord 112 is close to the two ends.
  • the rope segments at the two ends can be respectively wound in the first winding slots 84 on the corresponding first winding wheels 80;
  • each second pull cord 32 is connected to the handle 31, and the second end of each second pull cord 32 is respectively connected to the second winding groove 85 on the second reel 81 of the two reel assemblies 8. , and each second pull cord 32 can be wound in the second winding slot 85 of the corresponding second winding wheel 81 .
  • Fig. 10 similar to the reel assembly 5 shown in Fig. 8, when the handle 31 is pulled, the second pull cord 32 is released from the second winding groove 85 on the second reel 81, and the second winding The wire wheel 81 rotates counterclockwise, and the first wire reel 80 rotates clockwise. At this time, if the winding directions of the first stay cord 112 and the second stay cord 32 are the same, the second stay cord is released on the second wire reel 81. 32, the first pull cord 112 is gradually wound on the first reel 80.
  • the speed ratio of the second gear 811 on the second reel 81 to the first gear 801 on the first reel 80 is greater than 1, for example, the second gear 811 and the first gear 801
  • the speed ratio is m (m>1), that is, the diameter of the first gear 801 is m times the diameter of the second gear 811, the length of the second stay rope 32 released by the second stay rope 32 in this process , is m times the length of the first pull cord 112 newly wound by the first reel 80 during this process.
  • the second pull cord 32 is pulled from the second reel 81 Released, the first pull cord 112 is gradually wound on the first reel 80 .
  • the pulling stroke of the handle 31 is b
  • the release length of the second pull cord 32 is b
  • the winding length of both ends of the first stay cord 112 is b/m.
  • the two handles 31 are pulled simultaneously, the two The first winding wheel 80 on the side winds the first pulley 112 at the same time, the reduced length of the first pulley 112 is 2b/m, and the moving distance of the first movable pulley 111 is b/m.
  • the moving stroke of the pulley assembly 11 can be reduced by adopting the reel assembly 8 in the present application, so that the entire The structure of the strength training machine 200 is relatively compact.
  • the reel assembly 8 further includes a first rotating shaft 83 , and a through hole (not shown) extending along the axial direction of the first reel 80 is provided inside the first reel 80 , and the first winding
  • the wheel 80 is sheathed on the first rotating shaft 83 and can move relative to the first rotating shaft 83 along the axial direction of the first rotating shaft 83 .
  • the first bearing seat 827 is provided with a central screw hole 8231, the central screw hole 8231 and the bearing in the first bearing seat 827 are coaxially arranged, corresponding to the central screw hole 8231, the first reel 80 also includes a The external thread section 802 on the side of the first winding groove 84 is inserted into the central screw hole 8231 and screwed with the central screw hole 8231 through transmission threads.
  • the reel assembly 8 also includes a second rotating shaft 86, the second reel 81 is provided with a through hole (not shown) extending axially along itself, the second reel 81 is sleeved on the second rotating shaft 86 , and can move relative to the second rotating shaft 86 along the axial direction of the second rotating shaft 86 .
  • the fourth bearing seat 826 is provided with a central screw hole (not shown), the center screw hole and the bearing in the fourth bearing seat 826 are arranged coaxially, corresponding to the central screw hole, the second reel 81 also includes The external thread section 812 arranged on the side of the second winding slot 85 is inserted into the central screw hole and screwed with the central screw hole through transmission threads.
  • the first winding The wire wheel 80 also moves axially on the first rotating shaft 83.
  • the winding process on the first wire winding wheel 80 is equidiametric helical winding, and the coiled first One pull cord 112 does not overlap each other.
  • the second winding wheel 81 also moves axially on the second rotating shaft 86.
  • the winding process on the second winding wheel 81 is an equidiametric spiral winding, and the winding process The completed second pull cords 32 will not overlap each other.
  • the first gear 801 can move along the shaft relative to the second gear 811. to move and remain engaged.
  • both the first rotating shaft 83 and the second rotating shaft 86 are spline shafts, and the inner surfaces of the through holes of the first winding wheel 80 and the second winding wheel 81 are provided with spline shafts. Spline grooves (not shown) that match the splines of the shaft. Since the first rotating shaft 83 and the second rotating shaft 86 are structures for transmitting torque, the first rotating shaft 83 and the first winding wheel 80, the second rotating shaft 86 and the second winding wheel 81 are the cooperation of spline pairs. Neither the movement of the first winding wheel 80 in the axial direction of the first rotating shaft 83 nor the movement of the second winding wheel 81 in the axial direction of the second rotating shaft 86 will be affected, nor will it affect the transmission of torque.
  • the settings of the rope threading hole, the limit block and the universal sleeve are similar to those of the reel assembly 5 , and will not be repeated here.
  • the axial directions of all the reels in the two reel assemblies 8 are parallel, and are located in the two reel assemblies 8 on both sides of the relative direction D of the handle assembly, the first reel 80 and the second reel 80
  • the installation direction of the reel 81 is opposite to that of the bracket 101 .
  • the axial directions of the first reel 80 and the second reel 81 in the two groups of reel assemblies 8 are parallel, and the first reel 80 and the second reel 80 in the two groups of reel assemblies 8
  • the arrangement direction of the wire wheels 81 is opposite to the arrangement direction of the bracket 101 .
  • the setting position of the first reel 80 in the reel assembly 8 on the left side of the drawing is higher than that of the second reel 81 ; in the reel assembly 8 on the right side of the drawing, The installation position of the first reel 80 is lower than that of the second reel 81 .
  • the strength training machine includes a bracket and a tension mechanism arranged on the bracket.
  • the tension mechanism includes a distribution mechanism, a counterweight assembly and two handle assemblies;
  • the distribution mechanism includes a pulley assembly, and the pulley assembly includes a first movable pulley and a winding The first pull cord on the wheel surface of the first movable pulley;
  • each handle assembly includes a second pull cord, and the two parts of the first pull cord that are away from the first movable pulley are respectively linked with the two second pull cords.
  • the pull rope can be used by the user to apply pulling force;
  • the counterweight assembly includes a resistance source, and the resistance source is used to drive the first sliding movement, so as to apply the counterweight pulling force to the two second pull ropes through the first pull rope.
  • the distribution mechanism includes the first movable pulley and the first stay rope wound on the surface of the first movable pulley, the first movable pulley can distribute the output from one input source into two outputs of the same size . Since the two parts of the first pulley that are away from the first pulley are respectively linked with the two second pulleys, the output from one direction of the counterweight assembly can be evenly distributed to the two through the first pulley and the first pulley.
  • the strength training machine only needs one counterweight source to provide the counterweight pulling force for the two handle assemblies, compared with the situation in the prior art that two counterweight sources are required to provide the counterweight pulling force for the two handle assemblies , on the one hand, the cost is reduced, and the difficulty of control is also reduced.
  • the counterweight pulling force of the two handle assemblies comes from the same counterweight source and is evenly distributed by the first moving pulley and the first pulley, the two The pull force of the counterweight on each handle assembly is more consistent.
  • connection should be understood in a broad sense, for example, it can be fixed connection, or through an intermediate
  • the media is indirectly connected, which can be the internal communication of two elements or the interaction relationship between two elements.

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Abstract

本申请提供一种力量训练机，包括支架和设置在支架上的拉力机构，拉力机构包括分配机构、配重组件以及两个拉手组件；分配机构包括滑轮组件，滑轮组件包括第一动滑轮和绕设在第一动滑轮部分轮面上的第一拉绳；各拉手组件均包括第二拉绳，第一拉绳的背离第一动滑轮的两侧绳段分别与两个第二拉绳联动，第二拉绳可供使用人员施加拉力；配重组件包括阻力源，阻力源用于驱动第一动滑轮移动，并通过第一拉绳向两个第二拉绳施加配重拉拽力。本申请两个拉手组件受到的配重拉拽力一致性较佳。

Description

力量训练机
本申请要求于2021年6月30日提交中国专利局，申请号为202110742764.8，名称为“力量训练机”的中国专利申请的优先权，该件中国专利申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及健身器械技术领域，尤其涉及一种力量训练机。
背景技术
随着生活水平的提高，人们对体能训练的需求也在不断提高，而通过力量训练器械进行身体训练已经成为了越来越多健身人士的选择。
现有的力量训练器械为了使体积较为紧凑，一般采用电机作为阻力源，电机向拉手组件输出相应力矩，模拟配重并在拉手组件上产生配重阻力。而为了满足使用者双臂的锻炼需求，拉手组件一般设有两组，且分别位于器械的两端；各拉手组件对应的阻力源也设于器械的两端，以分别向各拉手组件提供配重阻力，并实现多种训练动作。
然而，现有的力量训练器械中，各拉手组件均采用独立的阻力源驱动，导致两侧的阻力源提供的配重拉拽力的一致性较差。
发明内容
鉴于上述问题，本申请实施例提供一种力量训练机，两个拉手组件受到的配重拉拽力的一致性较佳。
为了实现上述目的，本申请提供一种力量训练机，包括支架和设置在支架上的拉力机构，拉力机构包括分配机构、配重组件以及两个拉手组件；分配机构包括滑轮组件，滑轮组件包括第一动滑轮和绕设在第一动滑轮部分轮面上的第一拉绳；各拉手组件均包括第二拉绳，第一拉绳的背离第一动滑轮的两侧绳段分别与两个第二拉绳联动，第二拉绳可供使用人员施加拉力；配重组件包括阻力源，阻力源用于驱动第一动滑轮移动，并通过第一拉绳向两个第二拉绳施加配重拉拽力。
在一种可选的实施方式中，第二拉绳的移动速度大于第一拉绳的移动速度。
在一种可选的实施方式中，两个拉手组件均包括手柄，同一个拉手组件中包括的手柄与第二拉绳连接，两个拉手组件分别位于支架上的相对两侧。
在一种可选的实施方式中，滑轮组件还包括滑轮支座以及设于支架上的导向杆，第一动滑轮可转动地支撑在滑轮支座上，滑轮支座上设有与导向杆相配合的导向部，导向部可沿导向杆相对移动，以限制滑轮支座的移动方向。
在一种可选的实施方式中，导向杆的长度方向沿两个拉手组件的相对方向；和/或导向部内形成有贯穿腔，导向杆插设在贯穿腔中，滑轮支座通过导向部而吊挂在导向杆上。
在一种可选的实施方式中，配重组件包括安装支座、可转动地支撑在安装支座上的驱动轮、以及可卷绕在驱动轮上的拉力带，安装支座固定在支架上；配重组件还包括第二动滑轮，拉力带的一端固定在驱动轮上，另一端与支架相对固定，且拉力带的部分结构跨绕在第二动滑轮上；第二动滑轮的轮芯形成配重组件的输出端。
在一种可选的实施方式中，拉力带为扁平带状件，且拉力带卷绕在驱动轮上时，拉力带的厚度方向沿驱动轮的径向。
在一种可选的实施方式中，分配机构还包括设置在支架上的两组绕线轮组件，各绕线轮组件均开设有环状的第一绕线槽和第二绕线槽；第一拉绳的两端分别连接在两个绕线轮组件的第一绕线槽中，且第一拉绳靠近自身两个端部的部分绳段可分别卷绕在对应的第一绕线槽上；拉手组件还包括第二拉绳，各第二拉绳的第一端与手柄相连，各第二拉绳的第二端分别连接在两个绕线轮组件的第二绕线槽上，且各第二拉绳均可卷绕在对应的第二绕线槽上；
各绕线轮组件中，第二拉绳在对应第二绕线槽上释放时，第一拉绳在对应第一绕线槽上进行卷绕，且第二拉绳在对应第二绕线槽上的释放速度大于第一拉绳在对应第一绕线槽上的卷绕速度。
在一种可选的实施方式中，两组绕线轮组件的设置位置分别与两个拉手组件的设置位置相对应。
在一种可选的实施方式中，两组绕线轮组件中的绕线轮的轴向平行，且两组绕线轮组件中的绕线轮相对于支架的布置方向相反。
在一种可选的实施方式中，两组绕线轮组件中的其中一者与配重组件位于支架的相同侧。
在一种可选的实施方式中，各绕线轮组件包括绕线轮，绕线轮可转动地支撑在支架上；
各绕线轮包括第一绕线段和第二绕线段；第一绕线槽位于第一绕线段上，并沿第一绕线段的周向延伸；第二绕线槽位于第二绕线段上，并沿第二绕线段的周向延伸；第二绕线槽的槽底的直径大于第一绕线槽的槽底的直径。
在一种可选的实施方式中，各绕线轮组件均包括可转动地支撑在支架上的第一绕线轮和第二绕线轮，第一绕线槽位于第一绕线轮上，第一绕线轮包括第一齿轮，第一齿轮位于第一绕线轮的外周面上并与第一绕线槽并列布置；第二绕线槽位于第二绕线轮上，第二绕线轮包括第二齿轮，第二齿轮位于第二绕线轮的外周面上并与第二绕线槽并列布置，第一齿轮和第二齿轮相互啮合，且第二齿轮和第一齿轮的啮合传动的速比大于1。
在一种可选的实施方式中，两组所述绕线轮组件包括第三绕线轮，第三绕线轮与配重组件位于支架的相对两侧；
分配组件还包括导向单元，导向单元包括固定在支架上的第一定滑轮和第二定滑轮，第三绕线轮位于第一动滑轮和第一定滑轮之间，第二定滑轮位于第三绕线轮的背离第一定滑轮的一侧；
第一拉绳的两端之间的绳段依次越过第一动滑轮、第一定滑轮和第二定滑轮。
在一种可选的实施方式中，第一定滑轮的轴向、第一动滑轮的轴向、以及第二定滑轮的轴向平行。
在一种可选的实施方式中，两组绕线轮组件包括第四绕线轮，第四绕线轮与配重组件位于支架的相同侧；
导向单元还包括第三定滑轮，第三定滑轮位于第二定滑轮和第四绕线轮之间， 与配重组件位于相同侧的绕线轮组件中的绕线轮为第四绕线轮；且第一拉绳的两端之间的绳段依次越过第一动滑轮、第一定滑轮、第二定滑轮和第三定滑轮。
本申请提供的力量训练机包括支架和设置在支架上的拉力机构，拉力机构包括分配机构、配重组件以及两个拉手组件；分配机构包括滑轮组件，滑轮组件包括第一动滑轮和绕设在第一动滑轮部分轮面上的第一拉绳；各拉手组件均包括第二拉绳，第一拉绳的背离第一动滑轮的两部分绳段分别与两个第二拉绳联动，第二拉绳可供使用人员施加拉力；配重组件包括阻力源，阻力源用于驱动第一动滑轮移动，并通过第一拉绳向两个第二拉绳施加配重拉拽力。
上述方案中，通过设置分配机构，且分配机构包括第一动滑轮和绕在第一动滑轮轮面上的第一拉绳，第一动滑轮可以将来自一个输入源的输出(即向第一动滑轮输入的配重拉拽力)分配为大小相同的两个输出(即从第一拉绳的两个端部输出的力)。由于第一拉绳的背离第一动滑轮的两部分绳段分别与两个第二拉绳联动，可以使来自配重组件这一个方向的输出经过第一动滑轮和第一拉绳而均匀分配至两个第二拉绳中。由于力量训练机只需要一个配重源就可以为两个拉手组件提供配重拉拽力，与现有技术必须两个配重源才能为两个拉手组件提供配重拉拽力的情况相比，一方面成本降低，控制难度也降低，另一方面，由于两个拉手组件的配重拉拽力来自同一个配重源，并经过了第一动滑轮和第一拉绳的均匀分配，因此两个拉手组件上的配重拉拽力一致性较佳。
本申请的构造以及它的其他申请目的及有益效果将会通过结合附图来说明，以使优选实施例的描述更加明显易懂。
附图说明
图1a为本申请实施例提供的力量训练机的整体结构示意图；
图1b为本申请实施例提供的力量训练机的从底部看去的结构示意图；
图2a为本申请实施例提供的力量训练机的一种原理示意图；
图2b为本申请实施例提供的力量训练机的另一种原理示意图；
图3为本申请实施例提供的力量训练机中配重组件的结构示意图；
图4为本申请实施例提供的力量训练机中配重组件的分解结构示意图；
图5为本申请实施例提供的力量训练机中滑轮组件的结构示意图；
图6为本申请实施例提供的力量训练机中导向杆安装在支架上的结构示意图；
图7为本申请实施例提供的力量训练机中滑轮组件安装在支架上的结构示意图；
图8为本申请实施例提供的力量训练机中绕线轮组件的分解结构示意图；
图9为本申请实施例提供的力量训练机中绕线轮组件在支架上的结构示意图；
图10为本申请实施例提供的力量训练机中另一种结构的绕线轮组件的分解结构示意图；
图11为本申请实施例提供的另一种结构的绕线轮组件安装在支架上的整体结构示意图；
图12为本申请实施例提供的力量训练机中另一种结构的绕线轮组件安装在支架上的仰视图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
现有的力量训练器械一般具有两个拉手组件，使用人员通过对两个拉手组件的操作而实现多种训练动作。然而现有的力量器械存在两个拉手组件的拉力一致性较差的问题。这是由于，两个拉手组件分别采用了独立的电机作为阻力源，采用两个电机不仅成本较高，而且两个不同电机由于参数、运行情况等的差异导致两个电机输出也较难以保证一致性。
而本申请的力量训练机采用一个配重组件经过第一动滑轮分成两路后，同时为两个拉手组件提供配重拉拽力，因此两个拉手组件上拉力的一致性较好。
下面结合附图说明本申请实施例的力量训练机。
图1a为本申请实施例提供的力量训练机的整体结构示意图，图1b为本申请实施例提供的力量训练机的从底部看去的结构示意图；图2a为本申请实施例提供的力量训练机的一种原理示意图，图2b为本申请实施例提供的力量训练机的另一种原理示意图。
参照图1a、图1b，力量训练机100包括支架101和设置在支架101上的拉力机构，拉力机构包括分配机构1、配重组件2以及两个拉手组件3。
分配机构1包括滑轮组件11，滑轮组件11包括第一动滑轮111和绕设在第一动滑轮111部分轮面上的第一拉绳112；各拉手组件3均包括第二拉绳32，第一拉绳112的两端分别与两个第二拉绳32联动，即第一拉绳112的背离第一动滑轮111的两侧绳段分别与两个第二拉绳32联动。第二拉绳32可供使用人员施加拉力；且第二拉绳32的移动速度大于第一拉绳112的移动速度，配重组件2包括阻力源26，阻力源26用于驱动第一动滑轮111移动，以通过第一拉绳112向两个第二拉绳32施加配重拉拽力。
在上述方案中，通过设置分配机构1，且分配机构1包括第一动滑轮111和绕设在第一动滑轮111部分轮面上的第一拉绳112，第一动滑轮111可以将来自一个输入源的输出(即向第一动滑轮输入的配重拉拽力)分配为大小相同的两个输出(即从第一拉绳的两个端部输出的力)。由于第一拉绳112的背离第一动滑轮111的两部分绳段分别与两个第二拉绳32联动，可以使来自配重组件2这一个方向的输出经过第一动滑轮111和第一拉绳112而均匀分配至两个第二拉绳32中。由于力量训练机100只需要一个配重源就可以为两个拉手组件3提供配重拉拽力，与现有技术必须两个配重源才能为两个拉手组件3提供配重拉拽力的情况相比，一方面成本降低，控制难度也降低，另一方面，由于两个拉手组件3的配重拉拽力来自同一个配重组件，并经过了第一动滑轮111和第一拉绳112的均匀分配，因此两个拉手组件3上的配重拉拽力一致性较佳。
此外，利用第一动滑轮111和第一拉绳112相互配合实现配重拉拽力的分配， 该配合属于滚动配合，在分配过程中产生的阻力较小，力的损耗较小，使用者更容易拉动绳索，并且该分配过程对配重拉拽力的影响较小。
另外，可以理解的是，由于第二拉绳32的移动速度大于第一拉绳112的移动速度，则在相同时间内，使用者拉动第二拉绳32的行程始终大于第一拉绳112的移动行程，也即使用者拉动第二拉绳32的行程始终大于第一动滑轮111的移动行程的两倍，这与使用者拉动拉手组件的行程与第一动滑轮111的移动行程的两倍相同相比，显然在第一动滑轮111的移动行程相同的情况下，本申请中可供使用者拉动的第二拉绳32的移动行程更大。换言之，即使身高较高的人群拉动拉手组件3的行程较大，反映到第一动滑轮上的行程也较小，为此可以使支架101的长度减小，使整个力量训练机的100结构较为紧凑，体积较小。
本申请实施例中，参照图1a，出于轻量化的需要，支架101可以形成为框状件，且在框状件的内部连接有加强梁1012等结构对框状件进行补强。例如，支架101可包括加强梁1012以及框状的支架本体1011，加强梁1012的数量可以根据需要选择，这里以加强梁1012为两个为例进行说明，两个加强梁1012彼此间隔地设置在框状的支架本体1011内侧面上。
拉力机构包括两个拉手组件3，拉手组件3用于供使用者拉拽来进行训练。两个拉手组件3可以有一定间距，以满足使用者的具体使用需求。具体的，两个拉手组件3可以分别位于支架101上、例如支架本体1011的相对两侧。可选的，两个拉手组件3均包括手柄31，同一个拉手组件3中包括的手柄31与第二拉绳32连接。
在其它一些示例中，拉手组件还可以包括长杆，长杆两端分别连接两个第二拉绳；又或者，拉手组件还可以包括腰带，腰带用于绑在训练者的腰部，腰带分别与两个第二拉绳连接。
本申请实施例中，力量训练机100可以存在卧式或立式两种使用状态。对应到支架101上，支架101可以有横向放置或者纵向放置的情况，具体的，图1a所示的力量训练机100是支架101横向放置的情况，框状的支架本体1011的框状平面与地面大致平行放置。此处可以使支架本体1011的长度方向沿两个拉手组件3的相对方向D。
对于支架101纵向放置的情况，是指支架本体1011的框状平面与地面大致垂直放置，该情况下，力量训练机100中各机构、组件的设置与支架101横向放置的情况类似，此处不再赘述。
本申请以力量训练机100为卧式的情况为例进行说明。
另外，在支架本体1011的底部还设有支脚1013，用于对支架本体1011进行支撑，在支脚1013底端还设有脚垫1014，以起到缓冲作用，或者在地面高低不平的情况下，起到垫高支脚1013的作用。
本申请实施例中，参照图1b，滑轮组件11包括第一动滑轮111和绕设在第一动滑轮111部分轮面上的第一拉绳112，这里第一拉绳112绕设在第一动滑轮111部分轮面上是指第一拉绳112跨绕在第一动滑轮111的部分轮面上。
第一拉绳112的背离第一动滑轮111的两部分绳段分别与两个第二拉绳32联 动，联动一方面是指第一拉绳112的背离第一动滑轮111的两部分绳段在第一动滑轮111的带动下朝向配重组件2移动时，对应的两个第二拉绳32也各自被拉回；另一方面是指，两个第二拉绳32在使用人员的拉拽下被拉出时，第一拉绳112的背离第一动滑轮111的两部分绳段随之移动，带动第一动滑轮111向背离配重组件2的方向移动。
配重组件2在驱动第一动滑轮111移动时，可以通过第一拉绳112向两个第二拉绳32施加配重拉拽力。另一方面，两个第二拉绳32可以通过第一拉绳112向第一动滑轮111施加背离配重组件2的力，使第一动滑轮111向背离配重组件2的方向移动。
图3为本申请实施例提供的力量训练机中配重组件的结构示意图，图4为本申请实施例提供的力量训练机中配重组件的分解结构示意图。
参照图3、图4，配重组件2包括安装支座21、可转动地支撑在安装支座21上的驱动轮22、以及可卷绕在驱动轮22上的拉力带23，安装支座21固定在支架101上。
具体的，安装支座21包括连接部212和两个间隔布置的安装臂211，连接部212可以将两个安装臂211连接起来，连接部212可通过紧固件等连接在支架101上。驱动轮22位于两个安装臂211之间的间隔中，驱动轮22的两端分别通过轴承等支撑在两个安装臂211上。
这里，拉力带23卷绕在驱动轮22上具体是指，拉力带23的一端固定在驱动轮22上，驱动轮22可以转动，拉力带23在驱动轮22转动的过程中，可以逐渐卷绕在驱动轮22上。拉力带23的另一端与支架101相对固定，即拉力带23的另一端可以固定在支架101上。
参照图3，配重组件2还包括第二动滑轮24，拉力带23的另一端与驱动轮22位于第二动滑轮24的相同侧，且拉力带23的部分结构跨绕在第二动滑轮24上，这样第二动滑轮24的轮芯形成配重组件的输出端25。具体的，在驱动轮22转动的过程中，拉力带23卷绕在驱动轮22上，由于拉力带23的另一端固定在支架101上，拉力带23未卷绕在驱动轮22上的部分的长度越来越少，第二动滑轮24逐渐向靠近驱动轮22的方向移动。
可选的，如前所述，配重组件2包括阻力源26，阻力源26可以为电机等具有旋转输出的部件。阻力源26可固定在安装支座21上，驱动轮22可以连接在阻力源26的输出轴上。
可以理解的是，第二动滑轮24可以将拉力带23输出的配重拉拽力加倍。具体的，拉力带23的另一端固定在支架101上，拉力带23背离第二动滑轮24的那部分拉力带段可以随着驱动轮22的转动变长或变短，这样第二动滑轮24实际上起到了动滑轮的作用，拉力带23上输出F牛的力，经过第二动滑轮24的加倍后，第二动滑轮24的轮芯处输出的力变为2F牛。
这样阻力源输出的配重拉拽力经过第二动滑轮24后加倍，再经过第一动滑轮111后均分成两路输出至两个拉手组件3，两个拉手组件3上获得的配重拉拽力与阻力源输出的配重拉拽力相同，因此无需提高阻力源的功率就能使两个拉手组件3 得到足够大的输出，可以降低力量训练机的成本。
本申请实施例中，拉力带23为扁平带状件，且拉力带23卷绕在驱动轮22上时，拉力带23的厚度方向沿驱动轮22的径向。这样，可以减小拉力带23输出的力的力臂，在阻力源26输出的力矩一定的情况下，拉力带23上输出的力就越大。即在阻力源26力矩相同的情况下，可以输出更多的力。
本申请实施例中，阻力源26用于驱动第一动滑轮111移动包含两种情况。参照图2a，作为一种可选的实施方式，阻力源26用于驱动第一动滑轮111向远离配重组件2的方向移动，具体的，力量训练机100可以包括连接在支架101上的滑轮103和滑轮104，滑轮103和滑轮104相对设置，且滑轮103和滑轮104的相对方向与第二动滑轮24的移动方向垂直；第一动滑轮111和第二动滑轮24之间连接有连接绳102，具体的，连接绳102的一端与第二动滑轮24的轮芯连接，另一端越过滑轮103、滑轮104后连接到第一动滑轮111的轮芯上，这样可以实现第一动滑轮111和第二动滑轮24的联动。参照图2a，在拉力带23向阻力源26上连接的驱动轮22上卷绕时，第二动滑轮24向靠近阻力源的方向移动，第一动滑轮111向远离阻力源的方向移动。
参照图2b，作为另一种可选的实施方式，阻力源26用于驱动第一动滑轮111向靠近配重组件2的方向移动。具体的，第一动滑轮111和第二动滑轮24相对固定，二者可以通过后述的滑轮支座113实现相对固定。在拉力带23向阻力源26上连接的驱动轮22上卷绕时，第二动滑轮24向靠近阻力源26的方向移动时，第一动滑轮111也向靠近阻力源26的方向移动。本申请实施例中，以图2b所示的情况为例进行说明，对于图2a所示的情况，与图2b类似，此处不再赘述。
另外，可以理解的是，对于前述的第一拉绳112的背离第一动滑轮111的两部分绳段分别与两个第二拉绳32联动，在图2a所示的情况中，联动一方面是指第一拉绳112的背离第一动滑轮111的两部分绳段在第一动滑轮111的带动下远离配重组件2移动时，对应的两个第二拉绳32也各自被拉回；另一方面是指，两个第二拉绳32在使用人员的拉拽下被拉出时，第一拉绳112的背离第一动滑轮111的两部分绳段随之移动，带动第一动滑轮111向靠近配重组件2的方向移动。
配重组件2在驱动第一动滑轮111移动时，可以通过第一拉绳112向两个第二拉绳32施加配重拉拽力。另一方面，两个第二拉绳32可以通过第一拉绳112向第一动滑轮111施加靠近配重组件2的力，使第一动滑轮111向靠近配重组件2的方向移动。
图5为本申请实施例提供的力量训练机中滑轮组件的结构示意图，图6为本申请实施例提供的力量训练机中导向杆安装在支架上的结构示意图，图7为本申请实施例提供的力量训练机中滑轮组件安装在支架上的结构示意图。
如前所述，滑轮组件11包括第一动滑轮111以及第一拉绳112。为了对第一动滑轮111靠近或远离驱动轮22的运动进行导向，可以考虑为滑轮组件11设置用于导向的结构。
参照图5、图6、图7，可选的，滑轮组件11还包括滑轮支座113以及设于支架101上的导向杆114，第一动滑轮111可转动地支撑在滑轮支座113上。例如， 第一动滑轮111的轮芯两侧可以通过轴承等可转动地支撑在滑轮支座113上。
滑轮支座113上设有与导向杆114相配合的导向部1131，导向部1131可沿导向杆114相对移动，以限制滑轮支座113的移动方向。这样，导向杆114对滑轮支座113、第一动滑轮111的移动路径进行了限制。
示例性的，导向部1131内形成有贯穿腔1132，导向杆114插设在贯穿腔1132中，滑轮支座113通过导向部1131而吊挂在导向杆114上。
如前所述，第二动滑轮24的轮芯作为配重组件的输出端25，可以与第一动滑轮111的轮芯相对固定。具体的，参照图5，可以将第二动滑轮24和第一动滑轮111都可转动地支撑在滑轮支座113上，以此来实现第一动滑轮111的轮芯和第二动滑轮24的轮芯的相对固定。
示例性的，滑轮支座113包括支座本体1133，以及设于支座本体1133上的两个第一安装臂1134和两个第二安装臂1135。两个第一安装臂1134间隔布置，并且两个第二安装臂1135也间隔布置。其中，第一动滑轮111的轮轴或轮芯两端分别支撑在两个第一安装臂1134上；第二动滑轮24的轮轴或轮芯两端分别支撑在两个第二安装臂1135上。
另外，继续参照图5，可选的，第二安装臂1135从支座本体1133朝向驱动轮22伸出，第一安装臂1134从支座本体1133向背离驱动轮22的方向伸出。
可选的，第一动滑轮111的轮轴与第二动滑轮24的轮轴垂直。即第一动滑轮111的轮体侧端面与第一安装臂1134的顶端面大致平行，这样可以在第一安装臂1134的顶端面上设置导向部1131。
参照图7，可选的，第一动滑轮111和第二动滑轮24在滑轮支座113的移动方向上并列排布。
继续参照图5、图7，可选的，导向部1131可以包括设置在第一安装臂1134上的第一挂接片1136、第二挂接片1137、以及连接在第一挂接片1136和第二挂接片1137之间的连接部1138，第一挂接片1136和第二挂接片1137间隔布置。并且第一挂接片1136、第二挂接片1137和连接部1138共同限定出用于容置导向杆114的贯穿腔1132。
这里，连接部1138可以是滚轮，滚轮的轮面与导向杆114为滚动接触，这样，使滑轮支座113沿导向杆114的移动阻力更小。
另外，参照图6、图7，可选的，导向杆114的长度方向沿两个拉手组件3的相对方向D。
图8为本申请实施例提供的力量训练机中绕线轮组件的分解结构示意图，图9为本申请实施例提供的力量训练机中绕线轮组件在支架上的结构示意图。
参照图1b、图8、图9，分配机构1还包括设置在支架101上的两组绕线轮组件5，分配机构1还包括设置在支架101上的两组绕线轮组件5，各绕线轮组件5均开设有环状的第一绕线槽54和第二绕线槽55；第一拉绳112的两端分别连接在两个绕线轮组件5的第一绕线槽54中，且第一拉绳112靠近自身两个端部的部分绳段可分别卷绕在对应的第一绕线槽54上。
参照图1b、图8，如前所述，拉手组件3还包括手柄31，各第二拉绳32的第 一端与手柄31相连，各第二拉绳32的第二端分别连接在两个绕线轮组件5的第二绕线槽55上，且各第二拉绳32均可卷绕在对应的第二绕线槽55上。
各绕线轮组件5中，第二拉绳32在对应第二绕线槽55上释放时，第一拉绳112在对应第一绕线槽54上进行卷绕，且第二拉绳32在对应第二绕线槽55上的释放速度大于第一拉绳112在对应第一绕线槽54上的卷绕速度。即前述的第二拉绳32的移动速度大于第一拉绳112的移动速度。
在上述方案中，与手柄31相连的第二拉绳32的释放速度大于第一拉绳112的卷绕速度，在相同时间内，手柄31移动的行程大于第一拉绳112移动的行程，即手柄31移动的行程大于第一动滑轮111移动的行程，这样可以适用于身高较高的人群。换言之，即使身高较高的人群拉动手柄31的行程较大，反映到第一动滑轮111上的行程也较小，为此可以使支架101的长度减小，整个力量训练机100的结构较为紧凑，占地面积较小，并且能够降低成本。
本申请实施例中，作为一种可选的实施方式，参照图1b、图8、图9，各绕线轮组件5均只包括一个绕线轮51，绕线轮51可转动地支撑在支架101上。
具体的，参照图8、图9，绕线轮组件5还包括绕线轮支座52，绕线轮支座52包括两个支撑臂521以及连接于两个支撑臂521之间的主体部522，主体部522固定在支架101上；
两个支撑臂521的端部分别设有第一轴承座523和第二轴承座524，绕线轮51可以通过第一轴承座523和第二轴承座524可转动地支撑在绕线轮支座52上。
绕线轮51包括第一绕线段511和第二绕线段512；第一绕线槽54位于第一绕线段511上，并沿第一绕线段511的周向延伸；第二绕线槽55位于第二绕线段512上，并沿第二绕线段512的周向延伸；第二绕线槽55的槽底的直径大于第一绕线槽54的槽底的直径。
第一拉绳112的两端分别连接在两个绕线轮51的第一绕线段511上的第一绕线槽54中，且第一拉绳112靠近两个端部的绳段可分别卷绕在对应的第一绕线段511上的第一绕线槽54中；
拉手组件3还包括第二拉绳32，各第二拉绳32的第一端与手柄31相连，各第二拉绳32的第二端分别连接在两个绕线轮51的第二绕线段512上的第二绕线槽55中，且各第二拉绳32均可卷绕在对应的绕线轮51的第二绕线段512上的第二绕线槽55中。
参照图1b、图8，可以理解的是，在手柄31被拉动时，第二拉绳32从第二绕线槽55上释放，绕线轮51顺时针转动(参照图8中的方向)，此时若第一拉绳112和第二拉绳32的卷绕方向相反，在第二绕线槽55上释放第二拉绳32的过程中，第一拉绳112逐渐卷绕在第一绕线槽54上。需要注意的是，在第二绕线槽55的槽底的直径大于第一绕线槽54的槽底的直径的情况下，例如第二绕线槽55的槽底面的直径是第一绕线槽54的槽底面直径的n(n＞1)倍的情况下，由于第一绕线段511和第二绕线段512同步转动，因此在绕线轮51转动的过程中，第二绕线槽55在该过程中新释放的第二拉绳32的长度，是第一绕线段511在该过程中新卷绕的第一拉绳112的长度的n倍。
示例性的，参照图1a、图1b，如上所述，在对手柄31进行拉动时，对于支架101两侧的两个绕线轮组件5而言，第二拉绳32从第二绕线槽55上释放，第一拉绳112逐渐卷绕在第一绕线槽54上。在手柄31的拉动行程为a的情况下，第二拉绳32的释放长度为a，第一拉绳112的卷绕长度均为a/n，在两个手柄31同时拉动时，两侧的第一绕线槽54同时对第一拉绳112进行卷绕，第一拉绳112整体的减少长度为2a/n，此时第一动滑轮111整体移动的距离为a/n。在只拉动其中一个手柄31的情况下，只有单侧的第一绕线槽54对第一拉绳112进行卷绕，第一拉绳112整体的减少长度为a/n，此时第一动滑轮111移动的距离为a/2n。
而在将第一拉绳112的两端均连接在手柄31上的情况下，在手柄31的拉动行程为a时，在两个手柄31同时拉动时，第一动滑轮111移动的距离为a；在单个手柄31拉动时，第一动滑轮111移动的距离为a/2。
将本申请实施例中第一动滑轮111的移动行程与直接将第一拉绳112连接在手柄31上相比，采用本申请中的绕线轮组件5能够减小滑轮组件11的移动行程，可以使整个力量训练机100的结构较为紧凑。
本申请实施例中，参照图8，绕线轮组件5还包括转动轴53，绕线轮51内设有沿自身轴向延伸的贯穿孔(未图示)，绕线轮51套设在转动轴53上，并可相对于转动轴53沿转动轴53的轴向窜动。而第一轴承座523内设有中心螺孔5231，中心螺孔5231和第一轴承座523内的轴承同轴设置，与中心螺孔5231相对应的，绕线轮51还包括设于第一绕线段511侧方的外螺纹段513，外螺纹段513插入中心螺孔5231中，并和中心螺孔5231通过传动螺纹旋合。
由于绕线轮51的外螺纹段513和第一轴承座523螺纹旋合，在绕线轮51转动时，在第一轴承座523相对于支架101固定的情况下，绕线轮51还在转动轴53上沿转动轴53的轴向移动，这样，对于第一拉绳112，在第一绕线段511上的绕制过程是等径螺旋绕制，绕制而成的第一拉绳112不会彼此重叠。对于第二拉绳32而言，基于同样的理由，其绕制也是等径螺旋绕制。
本申请实施例中，可选的，转动轴53为花键轴，绕线轮51上的贯穿孔内表面开设有与花键轴的花键相匹配的花键槽(未图示)。由于转动轴53是传递扭矩的结构，转动轴53和绕线轮51为花键副的配合既不会影响到绕线轮51沿转动轴53轴向的移动，又不会影响到扭矩的传递。
可选的，外螺纹段513、第一绕线段511以及第二绕线段512沿绕线轮51的轴向依次布置。使直径较小的第一绕线段511与外螺纹段513位于绕线轮51的同一侧。
本申请实施例中，可选的，在主体部522上可以设有穿绳孔(未图示)，第二拉绳32穿设在穿绳孔中，且第二拉绳32的第二端上设有限位块525，限位块525的外部轮廓尺寸大于穿绳孔的内径，以使第二拉绳32的第一端和第二端位于主体部522两侧。这样在手柄31未连接在第二拉绳32上的情况下，第二拉绳32也不会自穿绳孔中脱离。
由于使用者在进行力量训练时，可能会向不同的方向拉动手柄31，为此，可考虑在穿绳孔中设有可供第二拉绳32贯穿的万向套526。
另外，参照图1a，可以理解的是，拉手组件3中的第二拉绳32需要卷绕在第二绕线段512上，因此可考虑使两组绕线轮组件5的设置位置分别与两个拉手组件3的设置位置相对应。
参照图1b，两个绕线轮组件5中的绕线轮51的轴向平行，且两个绕线轮51相对于支架101的设置方向相反。
参照图1b，可选的，两组绕线轮组件5中的其中一者与配重组件2位于支架101的相同侧。换言之，其中一组绕线轮组件5与配重组件2的设置位置相对应，图1b所示的是图面左侧的绕线轮组件5和配重组件2相对应，当然，本申请不限于此，也可以是图面右侧的绕线轮组件5和配重组件2相对应。示例性的，位于支架101的长度方向(两个拉手组件3的相对方向D)同一侧的配重组件2和绕线轮组件5在与相对方向D垂直的方向上依次排布。例如可以使配重组件2中的驱动轮22与绕线轮组件5中的第二绕线槽55相邻设置。
另外，本申请实施例中，两组绕线轮组件5中的绕线轮51的轴向平行，且两组绕线轮组件5中的绕线轮51相对于支架101的布置方向相反。
示例性的，参照图1b，图面左侧的绕线轮组件5中的绕线轮51，第一绕线槽54在第二绕线槽55上方，图面右侧的绕线轮组件5中的绕线轮51，第一绕线槽54在第二绕线槽55下方。
本申请实施例中，分配组件还包括导向单元6，导向单元6包括固定在支架101上的第一定滑轮61和第二定滑轮62，第三绕线轮514位于第一动滑轮111和第一定滑轮61之间，第二定滑轮62位于第三绕线轮514的背离第一定滑轮61的一侧；
与配重组件2位于相对侧的绕线轮组件5中的绕线轮为第三绕线轮514；第一拉绳112的两端之间的绳段依次越过第一动滑轮111、第一定滑轮61和第二定滑轮62。
可选的，第一定滑轮61的轴向、第一动滑轮111的轴向、以及第二定滑轮62的轴向平行。
另外，导向单元6还可以包括第三定滑轮63，第三定滑轮63位于第二定滑轮62和第四绕线轮515之间，与配重组件2位于相同侧的绕线轮组件5中的绕线轮为第四绕线轮515；且第一拉绳112的两端之间的绳段依次越过第一动滑轮111、第一定滑轮61、第二定滑轮62和第三定滑轮63。
参照图1b，第一拉绳112的一个端部固定在第三绕线轮514的第一绕线槽54上，另一端越过第一动滑轮111、第一定滑轮61、第二定滑轮62以及第三定滑轮63后，固定在第四绕线轮515的第一绕线槽54上。第一定滑轮61、第二定滑轮62以及第三定滑轮63用于对第一拉绳112进行换向，以使第一拉绳112可以卷绕在位于支架101相对两侧的绕线轮上。
本申请实施例中，还提供另一种力量训练机200，其在上述的力量训练机100的基础上，对绕线轮组件5的结构做了改进，其余结构与力量训练机100中类似，此处不再赘述。图10为本申请实施例提供的力量训练机中另一种结构的绕线轮组件的分解结构示意图，图11为本申请实施例提供的另一种结构的绕线轮组件安装 在支架上的整体结构示意图，图12为本申请实施例提供的力量训练机中另一种结构的绕线轮组件安装在支架上的仰视图。
参照图10、图11、图12，绕线轮组件8包括可转动地支撑在支架101上的第一绕线轮80和第二绕线轮81，第一绕线槽84位于第一绕线轮80上，第一绕线轮80的外周面上还设有与第一绕线槽84并列布置的第一齿轮801；第二绕线槽85位于第二绕线轮81上，第二绕线轮81的外周面上还设有与第二绕线槽85并列布置的第二齿轮811，第一绕线轮80和第二绕线轮81通过第一齿轮801和第二齿轮811的相互啮合而联动，且第二齿轮811和第一齿轮801的啮合传动的速比大于1。这里，第二齿轮811和第一齿轮801的齿轮传动的速比是指第二拉绳32受到使用者的拉动而从第二绕线槽85上释放时，第一拉绳112被带动而逐渐卷绕在第一绕线槽84上。第二绕线轮81和第一绕线轮80上分别设有第二齿轮811和第一齿轮801，第二绕线轮81和第一绕线轮80是通过第二齿轮811和第一齿轮801而齿轮啮合的情况下，第二绕线轮81和第一绕线轮80的速比＝第一齿轮801的齿数与第二齿轮811的齿数的齿数比。
如前所述，绕线轮组件5利用第一绕线段511和第二绕线段512的直径比不同来使第一拉绳112和第二拉绳32具有不同的卷绕速度。而绕线轮组件8利用第二齿轮811与第一齿轮801速比的不同来实现。而对于第一绕线槽84和第二绕线槽85的槽底的直径，则不作特定要求，示例性的，在绕线轮组件8中，第一绕线槽84和第二绕线槽85的槽底直径可以相同。
具体的，参照图10，绕线轮组件8还包括绕线轮支座82，绕线轮支座82包括支座本体820、以及设于支座本体820上的四个支撑臂，即第一支撑臂821、第二支撑臂822、第三支撑臂823、以及第四支撑臂824，第一绕线轮80可转动地支撑在第一支撑臂821和第二支撑臂822上，第二绕线轮81可转动地支撑在第三支撑臂823和第四支撑臂824上。
具体的，第一支撑臂821和第二支撑臂822的端部分别设有第一轴承座827和第二轴承座828，第一绕线轮80的两个端部通过轴承分别支撑在第一轴承座827和第二轴承座828上。
第三支撑臂823和第四支撑臂824的端部分别设有第三轴承座825和第四轴承座826，第二绕线轮81的两个端部通过轴承分别支撑在第三轴承座825和第四轴承座826上。以此可以将第二绕线轮81可转动地支撑在绕线轮支座82上。
参照图10、图12，第一支撑臂821和第二支撑臂822相对设置，第三支撑臂823和第四支撑臂824相对设置，第一支撑臂821和第二支撑臂822的连线、第三支撑臂823和第四支撑臂824的连线在两个拉手组件3的相对方向D上错开，第一绕线轮80和第二绕线轮81在两个拉手组件3的相对方向D上错开，这样以使第一齿轮801和第二齿轮811能够相互啮合。
下面参照图10介绍第一绕线轮80和第二绕线轮81的详细结构。
如前所述，第一绕线槽84和第一齿轮801并列布置在第一绕线轮80上，第二绕线槽85和第二齿轮811并列布置在第二绕线轮81上，可以理解的是，为了避免影响到第一拉绳112和第二拉绳32的卷绕，第一齿轮801和第二齿轮811的 布置位置相对应相同，例如，第一绕线轮80的第一齿轮801朝向图10的图面右侧，第二绕线轮81的第二齿轮811朝向图10的图面左侧，二者的轮齿相互对应布置。
第一齿轮801的轴向尺寸小于第二齿轮811的轴向尺寸，以便于第一齿轮801在第一绕线轮80沿自身轴线窜动时，或者第二绕线轮811沿自身轴向窜动时，第一齿轮801和第二齿轮811还能保持啮合状态。
参照图10、图11，第一拉绳112的两端分别连接在两个绕线轮组件8的第一绕线轮80中的第一绕线槽84中，且第一拉绳112靠近两个端部的绳段可分别卷绕在对应的第一绕线轮80上的第一绕线槽84中；
各第二拉绳32的第一端与手柄31相连，各第二拉绳32的第二端分别连接在两个绕线轮组件8的第二绕线轮81上的第二绕线槽85中，且各第二拉绳32均可卷绕在对应的第二绕线轮81的第二绕线槽85中。
参照图10，与图8所示的绕线轮组件5类似的，在手柄31拉动时，第二拉绳32从第二绕线轮81上的第二绕线槽85上释放，第二绕线轮81逆时针转动，第一绕线轮80顺时针转动，此时若第一拉绳112和第二拉绳32的卷绕方向相同，在第二绕线轮81上释放第二拉绳32的过程中，第一拉绳112逐渐卷绕在第一绕线轮80上。需要注意的是，在第二绕线轮81上的第二齿轮811和第一绕线轮80上的第一齿轮801的速比大于1的情况下，例如第二齿轮811和第一齿轮801的速比是m(m＞1)的情况下，即第一齿轮801的直径是第二齿轮811的直径的m倍，第二拉绳32在该过程中释放的第二拉绳32的长度，是第一绕线轮80在该过程中新卷绕的第一拉绳112的长度的m倍。
示例性的，参照图11、图12，如上所述，在对手柄31进行拉动时，对于两侧的两个绕线轮组件8而言，第二拉绳32从第二绕线轮81上释放，第一拉绳112逐渐卷绕在第一绕线轮80上。在手柄31的拉动行程为b的情况下，第二拉绳32的释放长度为b，第一拉绳112的两端的卷绕长度均为b/m，在两个手柄31同时拉动时，两侧的第一绕线轮80同时对第一拉绳112进行卷绕，第一拉绳112的减少长度为2b/m，此时第一动滑轮111移动的距离为b/m。在只拉动其中一个手柄31的情况下，只有单侧的第一绕线轮80对第一拉绳112进行卷绕，第一拉绳112的减少长度为b/m，此时第一动滑轮111移动的距离为b/2m。
而在将第一拉绳112的两端均连接在手柄31上的情况下，在手柄31的拉动行程为b时，在两个手柄31同时拉动时，第一动滑轮111移动的距离为b；在单个手柄31拉动时，第一动滑轮111移动的距离为b/2。
将上述第一动滑轮111的移动行程与第一拉绳112的两端均连接在手柄31上相比，采用本申请中的绕线轮组件8能够减小滑轮组件11的移动行程，可以使整个力量训练机200的结构较为紧凑。
本申请实施例中，参照图10，绕线轮组件8还包括第一转动轴83，第一绕线轮80内设有沿自身轴向延伸的贯穿孔(未图示)，第一绕线轮80套设在第一转动轴83上，并可相对于第一转动轴83沿第一转动轴83的轴向窜动。而第一轴承座827内设有中心螺孔8231，中心螺孔8231和第一轴承座827内的轴承同轴设置， 与中心螺孔8231相对应的，第一绕线轮80还包括设于第一绕线槽84侧方的外螺纹段802，外螺纹段802插入中心螺孔8231中，并和中心螺孔8231通过传动螺纹旋合。
绕线轮组件8还包括第二转动轴86，第二绕线轮81内设有沿自身轴向延伸的贯穿孔(未图示)，第二绕线轮81套设在第二转动轴86上，并可相对于第二转动轴86沿第二转动轴86的轴向窜动。而第四轴承座826内设有中心螺孔(未图示)，中心螺孔和第四轴承座826内的轴承同轴设置，与中心螺孔相对应的，第二绕线轮81还包括设于第二绕线槽85侧方的外螺纹段812，外螺纹段812插入中心螺孔中，并和中心螺孔通过传动螺纹旋合。
由于第一绕线轮80的外螺纹段802和第一轴承座827螺纹旋合，在第一绕线轮80转动时，在第一轴承座827相对于支架101固定的情况下，第一绕线轮80还沿轴向在第一转动轴83上移动，这样，对于第一拉绳112，在第一绕线轮80上的绕制过程是等径螺旋卷绕，绕制而成的第一拉绳112不会彼此重叠。
同样地，由于第二绕线轮81的外螺纹段812和第四轴承座826螺纹旋合，在第二绕线轮81转动时，在第四轴承座826相对于支架101固定的情况下，第二绕线轮81还沿轴向在第二转动轴86上移动，这样，对于第二拉绳32，在第二绕线轮81上的绕制过程是等径螺旋卷绕，绕制而成的第二拉绳32不会彼此重叠。
需要注意的是，在第一绕线轮80沿第一转动轴83窜动、第二绕线轮81沿第二转动轴86窜动时，第一齿轮801可相对于第二齿轮811沿轴向移动，并保持啮合状态。
本申请实施例中，可选的，第一转动轴83和第二转动轴86均为花键轴，第一绕线轮80和第二绕线轮81的贯穿孔内表面开设有与花键轴的花键相匹配的花键槽(未图示)。由于第一转动轴83、第二转动轴86是传递扭矩的结构，因此第一转动轴83和第一绕线轮80、第二转动轴86和第二绕线轮81为花键副的配合既不会影响到第一绕线轮80沿第一转动轴83轴向、第二绕线轮81沿第二转动轴86轴向的移动，又不会影响到扭矩的传递。
本申请实施例的绕线轮组件8中，对于穿绳孔、限位块以及万向套的设置与绕线轮组件5类似，此处不再赘述。
参照图12，两个绕线轮组件8中的所有绕线轮的轴向平行，且位于拉手组件相对方向D两侧的两个绕线轮组件8中，第一绕线轮80和第二绕线轮81相对于支架101的设置方向相反。
换言之，两组绕线轮组件8中的各第一绕线轮80、第二绕线轮81的轴向平行，且两组绕线轮组件8中的第一绕线轮80和第二绕线轮81的排布方向相对于支架101的布置方向相反。
示例性的，参照图12，图面左侧的绕线轮组件8中的第一绕线轮80的设置位置高于第二绕线轮81；图面右侧的绕线轮组件8中，第一绕线轮80的设置位置低于第二绕线轮81。
本申请实施例中，力量训练机包括支架和设置在支架上的拉力机构，拉力机构包括分配机构、配重组件以及两个拉手组件；分配机构包括滑轮组件，滑轮组 件包括第一动滑轮和绕设在第一动滑轮部分轮面上的第一拉绳；各拉手组件均包括第二拉绳，第一拉绳的背离第一动滑轮的两部分绳段分别与两个第二拉绳联动，第二拉绳可供使用人员施加拉力；配重组件包括阻力源，阻力源用于驱动第一动滑移动，以通过第一拉绳向两个第二拉绳施加配重拉拽力。上述方案中，通过设置分配机构，且分配机构包括第一动滑轮和绕在第一动滑轮轮面上的第一拉绳，第一动滑轮可以将来自一个输入源的输出分配为大小相同的两个输出。由于第一拉绳的背离第一动滑轮的两部分绳段分别与两个第二拉绳联动，可以使来自配重组件这一个方向的输出经过第一动滑轮和第一拉绳而均匀分配至两个第二拉绳中。由于力量训练机只需要一个配重源就可以为两个拉手组件提供配重拉拽力，与现有技术必须两个配重源才能为两个拉手组件提供配重拉拽力的情况相比，一方面成本降低，控制难度也降低，另一方面，由于两个拉手组件的配重拉拽力来自同一个配重源，并经过了第一动滑轮和第一拉绳的均匀分配，因此两个拉手组件上的配重拉拽力一致性较佳。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应作广义理解，例如，可以使固定连接，也可以是通过中间媒介间接相连，可以是两个元件内部的连通或者两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请的描述中，需要理解的是，术语“上”、“下”、“前”、“后”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或者位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或者暗示所指的装置或者元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。
此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (15)

  1. 一种力量训练机，其特征在于，包括支架和设置在所述支架上的拉力机构，所述拉力机构包括分配机构、配重组件以及两个拉手组件；
    所述分配机构包括滑轮组件，所述滑轮组件包括第一动滑轮和绕设在所述第一动滑轮部分轮面上的第一拉绳；
    各所述拉手组件均包括第二拉绳，所述第一拉绳的背离所述第一动滑轮的两侧绳段分别与两个所述第二拉绳联动，所述第二拉绳可供使用人员施加拉力；
    所述配重组件包括阻力源，所述阻力源用于驱动所述第一动滑轮移动，并通过所述第一拉绳向两个所述第二拉绳施加配重拉拽力。
  2. 根据权利要求1所述的力量训练机，其特征在于，所述第二拉绳的移动速度大于所述第一拉绳的移动速度。
  3. 根据权利要求1所述的力量训练机，其特征在于，两个所述拉手组件均包括手柄，同一个所述拉手组件中包括的所述手柄与所述第二拉绳连接，两个所述拉手组件分别位于所述支架上的相对两侧。
  4. 根据权利要求3所述的力量训练机，其特征在于，所述滑轮组件还包括滑轮支座以及设于所述支架上的导向杆，所述第一动滑轮可转动地支撑在所述滑轮支座上，所述滑轮支座上设有与所述导向杆相配合的导向部，所述导向部可沿所述导向杆相对移动，以限制所述滑轮支座的移动方向。
  5. 根据权利要求4所述的力量训练机，其特征在于，所述导向杆的长度方向沿两个所述拉手组件的相对方向；和/或
    所述导向部内形成有贯穿腔，所述导向杆插设在所述贯穿腔中，所述滑轮支座通过所述导向部而吊挂在所述导向杆上。
  6. 根据权利要求1所述的力量训练机，其特征在于，所述配重组件包括安装支座、可转动地支撑在所述安装支座上的驱动轮、以及可卷绕在所述驱动轮上的拉力带，所述安装支座固定在所述支架上；
    所述配重组件还包括第二动滑轮，所述拉力带的一端固定在所述驱动轮上，另一端与所述支架相对固定，所述拉力带的部分结构跨绕在所述第二动滑轮上；所述第二动滑轮的轮芯形成所述配重组件的输出端。
  7. 根据权利要求6所述的力量训练机，其特征在于，所述拉力带为扁平带状件，且所述拉力带卷绕在所述驱动轮上时，所述拉力带的厚度方向沿所述驱动轮的径向。
  8. 根据权利要求2-7任一项所述的力量训练机，其特征在于，所述分配机构还包括设置在所述支架上的两组绕线轮组件，各所述绕线轮组件均开设有环状的第一绕线槽和第二绕线槽；
    所述第一拉绳的两端分别连接在两个所述绕线轮组件的第一绕线槽中，且所述第一拉绳靠近自身两个端部的部分绳段可分别卷绕在对应的所述第一绕线槽上；
    各所述第二拉绳的第一端与所述手柄相连，各所述第二拉绳的第二端分别连接在两个所述绕线轮组件的第二绕线槽上，且各所述第二拉绳均可卷绕在对 应的所述第二绕线槽上；各所述绕线轮组件中，所述第二拉绳在对应所述第二绕线槽上释放时，所述第一拉绳在对应所述第一绕线槽上进行卷绕，且所述第二拉绳在对应所述第二绕线槽上的释放速度大于所述第一拉绳在对应所述第一绕线槽上的卷绕速度。
  9. 根据权利要求8所述的力量训练机，其特征在于，两组所述绕线轮组件的设置位置分别与两个所述拉手组件的设置位置相对应。
  10. 根据权利要求9所述的力量训练机，其特征在于，两组所述绕线轮组件中的绕线轮的轴向平行，且两组所述绕线轮组件中的所述绕线轮相对于所述支架的布置方向相反。
  11. 根据权利要求8所述的力量训练机，其特征在于，两组所述绕线轮组件中的其中一者与所述配重组件位于所述支架的相同侧。
  12. 根据权利要求8-11任一项所述的力量训练机，其特征在于，各所述绕线轮组件包括绕线轮，所述绕线轮可转动地支撑在所述支架上；
    各所述绕线轮包括第一绕线段和第二绕线段；所述第一绕线槽位于所述第一绕线段上，并沿所述第一绕线段的周向延伸；所述第二绕线槽位于所述第二绕线段上，并沿所述第二绕线段的周向延伸；所述第二绕线槽的槽底的直径大于所述第一绕线槽的槽底的直径。
  13. 根据权利要求8-11任一项所述的力量训练机，其特征在于，各所述绕线轮组件均包括可转动地支撑在所述支架上的第一绕线轮和第二绕线轮，所述第一绕线槽位于所述第一绕线轮上，所述第一绕线轮包括第一齿轮，所述第一齿轮位于所述第一绕线轮的外周面上并与所述第一绕线槽并列布置；所述第二绕线槽位于所述第二绕线轮上，所述第二绕线轮包括第二齿轮，所述第二齿轮位于所述第二绕线轮的外周面上并与所述第二绕线槽并列布置，所述第一齿轮和所述第二齿轮相互啮合，且所述第二齿轮和所述第一齿轮的啮合传动的速比大于1。
  14. 根据权利要求8-11任一项所述的力量训练机，其特征在于，两组所述绕线轮组件包括第三绕线轮，所述第三绕线轮与所述配重组件位于所述支架的相对两侧；
    所述分配组件还包括导向单元，所述导向单元包括固定在所述支架上的第一定滑轮和第二定滑轮，所述第三绕线轮位于所述第一动滑轮和所述第一定滑轮之间，所述第二定滑轮位于所述第三绕线轮的背离所述第一定滑轮的一侧；所述第一拉绳的两端之间的绳段依次越过所述第一动滑轮、所述第一定滑轮和所述第二定滑轮。
  15. 根据权利要求14所述的力量训练机，其特征在于，两组所述绕线轮组件包括第四绕线轮，所述第四绕线轮与所述配重组件位于所述支架的相同侧；
    所述导向单元还包括第三定滑轮，所述第三定滑轮位于第二定滑轮和所述第四绕线轮之间；且所述第一拉绳的两端之间的绳段依次越过所述第一动滑轮、所述第一定滑轮、所述第二定滑轮和所述第三定滑轮。
PCT/CN2022/085162 2021-06-30 2022-04-02 力量训练机 WO2023273488A1 (zh)

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