CN217367017U

CN217367017U - Strength training machine

Info

Publication number: CN217367017U
Application number: CN202121493493.9U
Authority: CN
Inventors: 叶全胜
Original assignee: Guangzhou Yuandong Smart Sports Technology Co Ltd
Current assignee: Guangzhou Yuandong Smart Sports Technology Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-09-06
Anticipated expiration: 2031-06-30
Also published as: WO2023273489A1

Abstract

The utility model provides a strength training machine. The strength training machine comprises a bracket, and a counterweight component, a distribution unit and two handle components which are arranged on the bracket; the distribution unit is slidably arranged on the bracket and provided with a first channel and a second channel, the two ends of the first channel and the second channel are communicated, and the distribution unit further comprises a tension rope; one end of the output rope is fixed on the driving wheel, the other end of the output rope penetrates through the first channel and then is fixed relative to the support, and in the process that the driving wheel winds the output rope, the first channel is driven to move towards the driving wheel; during the second passageway was worn to locate by the partial rope segment of pulling force rope, the pulling force rope deviates from the both sides rope segment of second passageway and links with two handle components respectively, and the second passageway can drive the pulling force rope and remove in the in-process that removes to exert counter weight pulling power to two handle components. The utility model discloses can reduce the cost of counter weight component under the condition that provides enough joining in marriage gravity to it is less to make its volume.

Description

Strength training machine

Technical Field

The utility model relates to the technical field of fitness equipment, especially, relate to a strength training machine.

Background

With the improvement of living standard, people have higher requirements on physical fitness, and fitness equipment such as strength training machines and the like are favored by people.

Existing strength training machines may include a weight source, a dispensing unit, and a handle, with the dispensing unit being connected to the weight source and also connected to a plurality of handles. Because of the factors of heavy weight, large volume and the like, a set of strength training machine can correspond to one set of weight source under the general condition, but the quantity of the handles is generally two due to the requirement of double-hand exercise. Under the condition that the number of the handles is two, the distribution unit is used for distributing the counterweight output force of the single counterweight source into two paths which are respectively output to the corresponding handles.

However, in the above-mentioned conventional dispensing unit, the dispensing unit dispenses the weight force outputted from the weight source to the two handles, the weight force dispensed to each handle is reduced relative to the weight force of the weight source, and in order to ensure sufficient weight force to each handle, the power, torque, etc. of the weight source must be increased, which correspondingly increases the cost of the weight source.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, embodiments of the present application provide a strength training machine that can reduce the cost and volume of a weight assembly while providing sufficient weight.

In order to achieve the above object, the present application provides a strength training machine, a support, and a weight assembly, a distribution unit and two handle assemblies disposed on the support; the counterweight assembly comprises a driving wheel and an output rope capable of being wound on the driving wheel, the distribution unit is slidably arranged on the support and provided with a first channel and a second channel, the two ends of the first channel and the two ends of the second channel are communicated, and the distribution unit further comprises a tension rope; one end of the output rope is fixed on the driving wheel, the other end of the output rope penetrates through the first channel and then is fixed relative to the support, and in the process that the driving wheel winds the output rope, the first channel is driven to move towards the driving wheel; during the second passageway was worn to locate by the partial rope segment of pulling force rope, the pulling force rope deviates from the both sides rope segment of second passageway and links with two handle components respectively, and the second passageway can drive the pulling force rope and remove in the in-process that removes to exert counter weight pulling power to two handle components.

In an alternative embodiment, the dispensing unit comprises a connecting support, a first connecting element and a second connecting element, which are arranged on the connecting support, the first connecting element and the connecting support jointly enclosing a first channel, and the second connecting element and the connecting support jointly enclosing a second channel.

In an alternative embodiment, the first and second connecting members are both pulleys; the first connecting piece and the second connecting piece are both rotatably supported on the connecting support.

In an alternative embodiment, the connecting bracket comprises a bracket body, and two first mounting arms and two second mounting arms arranged on the bracket body;

the two first mounting arms are arranged at intervals, and two ends of the wheel core of the first connecting piece are respectively supported on the two first mounting arms;

the two second mounting arms are arranged at intervals, and two ends of the wheel core of the second connecting piece are respectively supported on the two second mounting arms.

In an alternative embodiment, the axis of rotation of the first connecting part is perpendicular to the axis of rotation of the second connecting part and/or the axis of rotation of the second connecting part is perpendicular to the direction of displacement of the connecting support.

In an alternative embodiment, the drive wheel, the first connecting element and the second connecting element are arranged next to one another in the direction of movement of the connecting support.

In an alternative embodiment, the first mounting arm projects from the carrier body towards the drive wheel and the second mounting arm projects from the carrier body away from the drive wheel.

In an optional implementation mode, a guide rod is arranged on the support, the connecting support comprises a hanging piece arranged on the second mounting arm, the top end of the hanging piece protrudes out of the top side of the other part of the connecting support, and the guide rod is arranged in the hanging piece in a penetrating mode so as to hang the connecting support on the guide rod.

In an optional implementation manner, the hanging piece comprises a first hanging arm and a second hanging arm which are arranged at intervals, and a connecting portion connected between the first hanging arm and the second hanging arm, and the first hanging arm, the second hanging arm and the connecting portion jointly define an accommodating space for accommodating the guide rod.

In an alternative embodiment, the connecting portion is a roller wheel, which is rotatably supported on the first and second hitching arms.

In an alternative embodiment, the wheel surface of the roller is provided with a guide groove in which the guide rod can be embedded, and the guide groove extends along the circumferential direction of the roller to form an annular groove.

In an alternative embodiment, the number of the connecting parts is at least two, and the at least two connecting parts are arranged at intervals along the length direction of the guide rod.

The construction and other objects and advantages of the present invention will be more clearly understood from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

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

FIG. 2 is a schematic view of the overall structure of a strength training machine according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a distribution unit in the strength training machine according to an embodiment of the present disclosure;

FIG. 4a is a schematic structural diagram of a frame of a strength training machine according to an embodiment of the present disclosure;

FIG. 4b is a schematic diagram of another configuration of a dispensing unit in the strength training machine according to the embodiment of the present disclosure;

FIG. 5 is a schematic structural view of a reel assembly of the strength training machine according to an embodiment of the present disclosure;

FIG. 6 is an exploded view of the strength training machine according to the embodiment of the present disclosure;

fig. 7 is a bottom view of the strength training machine provided in the embodiments of the present application.

Description of reference numerals:

100-strength training machine; 10-a scaffold; 101. 102-a pulley; 103-connecting ropes; 11-a stiffening beam; 12-a guide bar; 20-a counterweight assembly; 21-a driving wheel; 22-output cord; 23-a counterweight support; 24-a guide bar support; 30-a dispensing unit; 301-a first channel; 302-a second channel; 31-a first connector; 32-a second connector; 33-connecting a support; 330-support body; 331-a first mounting arm; 332-a second mounting arm; 333-hanging parts; 3331-first hitching arm; 3332-second hitching arm; 3333-connecting part; 3334-a holding space; 40-a handle assembly; 41-tensile rope; 42-a handle; 43-a limiting block; 44-a universal sleeve; 50-a wire-wound wheel assembly; 51-a first winding slot; 52-a second winding slot; 53-reel seat; 531-support arm; 532-main body part; 533-a first bearing housing; 5331-central screw hole; 534-a second bearing block; 54-a reel; 55-output pull rope; 56-rotating shaft; 57-external thread section; 61-a third fixed pulley; 62-a fourth fixed pulley; 63-fifth fixed pulley.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the accompanying drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The existing strength training machine comprises a counterweight source, a distribution unit and two handle components, wherein the distribution unit is respectively connected with the counterweight source and the two handle components and is used for equally dividing the output of the counterweight source into two paths so as to provide the two paths for the corresponding handle components. Generally, in order to provide sufficient counterweight force for each handle assembly, a counterweight source with larger power is needed, and not only is the counterweight source larger in volume, but also the counterweight source is higher in cost.

In the strength training machine, the distribution unit comprises the two movable pulleys, the counterweight force output by the counterweight component is doubled after passing through the first connecting piece and is equally divided into two paths of output after passing through the second connecting piece, so that the counterweight force output by the counterweight component is the same as the counterweight force obtained by the counterweight component, the two handle components can be output in a large enough way without improving the power of the counterweight component, and the cost is low.

The following describes the strength training machine according to the embodiment of the present application with reference to the drawings. Fig. 1 is a schematic structural diagram of a strength training machine provided in an embodiment of the present application. It should be noted that fig. 1 is a schematic diagram of various mechanisms in the strength training machine, and the specific structure of various parts in the strength training machine is not limited to the example of fig. 1.

Referring to fig. 1, a strength training machine 100 according to an embodiment of the present application includes a frame 10, and a weight assembly 20, a distribution unit 30, and two handle assemblies 40 provided on the frame 10; the counterweight assembly 20 comprises a driving wheel 21 and an output rope 22 capable of being wound on the driving wheel 21, the distribution unit 30 is slidably arranged on the support 10, the distribution unit 30 is provided with a first channel 301 and a second channel 302, both ends of the first channel 301 and the second channel 302 are communicated, and the distribution unit 30 can comprise a tension rope 41;

one end of the output rope 22 is fixed on the driving wheel 21, the other end of the output rope passes through the first channel 301 and then is fixed relative to the bracket 10, and in the process that the driving wheel 21 winds the output rope 22, the first channel 301 is driven to move towards the driving wheel 21; partial rope sections of the tension ropes 41 are arranged in the second channel 302 in a penetrating mode, the rope sections on two sides, away from the second channel 302, of the tension ropes 41 are respectively linked with the two handle assemblies 40, the second channel 302 can drive the tension ropes 41 to move in the moving process, and therefore counterweight pulling force is exerted on the two handle assemblies 40.

In the above solution, one end of the output rope 22 is fixed on the driving wheel 21, and the other end of the output rope passes through the first channel 301 and is fixed relative to the bracket 10, and since the distribution unit 30 can be driven by the output rope 22 to move towards the driving wheel 21 in the process of winding the output rope 22 onto the driving wheel 21, the distribution force applied to the distribution unit 30 is twice the distribution force output by the driving wheel 21; in addition, two side rope sections of the tensile rope 41, which are away from the second channel 302, are respectively linked with the two handle assemblies 40, and part of the rope sections of the tensile rope 41 are arranged in the second channel 302 in a penetrating manner, so that the matching gravity borne by the two side rope sections of the tensile rope 41, which are close to the end parts, is half of the matching gravity borne by the distribution unit 30;

i.e., the resulting output on both handle assemblies 40 is the same as the counterweight force output by the counterweight assembly 20. Compared with the prior art that the distribution unit distributes the counterweight output force of the counterweight source to half of the two handles respectively, the counterweight device can change the output of the counterweight assembly 20 from one output to two outputs without reducing the weight of each handle assembly 40. Compared with the existing strength training machine, the handle component 40 can obtain enough counterweight force without increasing the power and the output of the counterweight component 20, so the cost of the counterweight component 20 can be reduced, and the volume of the counterweight component is smaller.

It should be noted that the second channel 302 can move the pull cord 41 during the movement process to apply the weight pulling force to the two handle assemblies 40, including two cases, that is, the second channel 302 shown in fig. 1 can move the pull cord 41 during the movement process towards the driving wheel 21 to apply the weight pulling force to the two handle assemblies 40. Or the second channel 302 can move the pull cord 41 away from the drive wheel 21 to apply a counterweight pulling force to the two handle assemblies 40, as will be described with reference to fig. 4b below.

It is understood that in the embodiment of the present application, the output cord 22 is disposed in the first passage 301, and the output cord 22 can be moved in tandem with respect to the first passage 301, so that the output cord 22 can move the dispensing unit 30 toward the driving wheel 21 as a whole during the process of winding the output cord 22 on the driving wheel 21.

The tensile cord 41 is threaded through the second channel 302, and the tensile cord 41 can move in tandem with respect to the second channel 302 so as to drive the entire dispensing unit 30 to move away from the driving wheel 21 when the tensile cord 41 moves away from the driving wheel 21.

As an alternative embodiment, the dispensing unit 30 may be a block, the first channel 301 and the second channel being channels opening in the block. Both ends of the first channel 301 are exposed to the surface of the block, and both ends of the second channel 302 may be exposed to the surface of the block.

To facilitate the output cord 22 to slide within the first channel 301, the inner wall of the first channel 301 may be smooth surfaced and the first channel 301 is formed as a curved profile channel that curves away from the drive wheel 21, e.g., the first channel 301 may be a curved channel that is semicircular.

Similar to the first channel 301, in order to facilitate the sliding of the tensile cord 41 in the second channel 302, the inner wall of the second channel 302 may be made a smooth surface, and the second channel 302 may be formed as a curved-profile channel that is curved toward the direction of the driving wheel 21, for example, the second channel 302 may be a curved channel in a semicircular shape.

It is understood that the structural form of the distribution unit 30 of the present application is not limited to the above structure, and may further include a pulley structure, etc., as long as the first passage 301 for the output rope 22 to slide and the second passage 302 for the tension rope 41 to slide can be formed in the distribution unit 30.

Fig. 2 is a schematic overall structural diagram of a strength training machine provided in an embodiment of the present application, and fig. 3 is a schematic structural diagram of a distribution unit in the strength training machine provided in the embodiment of the present application; fig. 4a is a schematic structural diagram of a bracket in a strength training machine according to an embodiment of the present application.

Referring to fig. 2 and 3, as another alternative embodiment, the distribution unit 30 may include a connection support 33, a first connection member 31, and a second connection member 32, the first connection member 31 and the second connection member 32 are disposed on the connection support 33, the first connection member 31 and the connection support 33 jointly define a first passage 301, and the second connection member 32 and the connection support 33 jointly define a second passage 302.

Illustratively, the first and

second links

31 and 32 are pulleys; the first link 31 and the second link 32 are rotatably supported on the link support 33. It should be noted that the first connecting member 31 and the second connecting member 32 are pulleys, and since the distribution unit 30 is slidably disposed on the support, specifically, the connecting support 33 can slide relative to the support 10 along the length direction L of the support 10, the first connecting member 31 and the second connecting member 32 can be equivalent to movable pulleys.

It can be understood that, when the first connecting member 31 and the second connecting member 32 are both pulleys, the output pull rope is easier to be pulled by the user because the resistance to the rotation of the pulleys is small, the friction force is small, and the loss of force is small.

In particular, a portion of the rope portion of the output rope 22 facing away from the driving wheel 21 can be wound over the first connecting element 31, i.e. through the first passage 301 enclosed by the first connecting element 31 and the connecting support 33. The part of the rope segment of the output rope 22 wound around the first connecting piece drives the first connecting piece 31 and the connecting support 33 to move towards the driving wheel 21 during the winding process of the output rope 22 to the driving wheel 21; and a partial rope section of the tension rope 41, for example, the rope section between the two ends, is wound on the second connecting member 32, that is, is threaded into the second passage 302 enclosed by the second connecting member 32 and the connecting support 33, and the second connecting member 32 can be moved toward the driving wheel 21 by the connecting support 33, so as to apply a counterweight pulling force to the two handle assemblies 40 through the tension rope 41.

It can be understood that, since the output rope 22 of the counterweight assembly 20 is fixedly connected with the bracket 10 after being wound on the wheel surface of the first connecting member 31, the output at the wheel core of the first connecting member 31 is twice of the counterweight force output by the counterweight assembly 20; since the second connecting member 32 and the first connecting member 31 are both disposed on the connecting support 33, the output at the wheel center of the second connecting member 32 is the same as the output at the wheel center of the first connecting member 31, and is twice the counterweight force output by the counterweight assembly 20; in addition, the tensile cord 41 is wound over the second connecting member 32, so that the output of the two handle assemblies 40 is half of the output of the second connecting member 32 at the wheel center, i.e. the output obtained on the two handle assemblies 40 is the same as the counterweight force output by the counterweight assembly 20.

The frame 10 may be formed as a base of the entire strength training machine 100 in a planar frame shape, and in order to increase the strength of the frame 10, a plurality of reinforcing beams 11 may be connected to the inner side of the frame-shaped frame 10, and the reinforcing beams 11 may be spaced apart from each other.

As previously described, the weight assembly 20, the dispensing unit 30, and the two handle assemblies 40 may all be disposed on the bracket 10. Wherein, two handle components 40 are arranged oppositely, and the opposite direction is along the length direction L of the bracket 10. Illustratively, two handle assemblies 40 are respectively positioned at two side edges in the length direction of the bracket 10.

In the embodiment of the present application, referring to fig. 3, the weight assembly 20 includes a driving wheel 21 and an output rope 22 capable of being wound on the driving wheel 21, and optionally, the weight assembly 20 further includes a driving source, such as a motor, etc., and the driving wheel 21 is rotatably connected to an output shaft of the driving source and is driven by the driving source to rotate. One end of the output rope 22 is fixed to the driving wheel 21 so that the output rope 22 can be wound around the driving wheel 21 when the driving wheel 21 is rotated by the driving source.

It is understood that the weight assembly 20 may further include a weight support 23, the weight support 23 may be fixed to the stand 10, the driving source may be fixed to the weight support 23, and the driving wheel 21 may be rotatably supported on the weight support 23.

Illustratively, the weight assembly 20 may be located on the same side of the bracket 10 as one of the two pull handle assemblies 40. As described above, in the case where the two handle assemblies 40 are respectively located at both side edges in the longitudinal direction of the support 10, the weight assembly 20 is also located at a position corresponding to one of the handle assemblies 40 on one side edge in the longitudinal direction of the support 10.

With continued reference to fig. 3, as mentioned above, the first connecting member 31 and the second connecting member 32 are both disposed on the connecting support 33, and the first connecting member 31 and the second connecting member 32 may be rotatably supported on the connecting support 33, while the wheel cores of the first connecting member 31 and the second connecting member 32 are relatively fixed. The connection holder 33 is slidably arranged on the support 10, in other words, the connection holder 33 is slidable relative to the holder.

Referring to fig. 2, the dispensing unit 30 may be located inside a frame-shaped holder. The sliding direction can be along the length direction L of the support. As mentioned above, one end of the output rope 22 is fixed on the driving wheel 21, and the other end of the output rope 22 can be fixed opposite to the bracket 10, at this time, a part of the rope segment of the output rope 22 departing from the driving wheel 21 is wound on the first connecting member 31, where the other end of the output rope 22 and the driving wheel 21 can be located on the same side of the first connecting member 31, so as to ensure that the first connecting member 31 and the connecting support 33 can be driven to move towards the driving wheel 21 during the winding process of the output rope 22 towards the driving wheel 21.

Here, referring to fig. 4a, the stand 10 may be provided with a guide bar support 24, and the guide bar support 24 is located at a position corresponding to the driving wheel 21 so that the other end of the output rope 22 can be coupled to the guide bar support 24.

With continued reference to fig. 3, optionally, the connection mount 33 includes a mount body 330, and two first mounting arms 331 and two second mounting arms 332 disposed on the mount body 330; the two first mounting arms 331 are arranged at intervals, and two ends of the wheel core of the first connecting piece 31 are respectively supported on the two first mounting arms 331; the two second mounting arms 332 are arranged at intervals, and both ends of the wheel core of the second connecting member 32 are respectively supported on the two second mounting arms 332. This makes it possible to rotatably support the first link member 31 and the second link member 32 on the link supports 33, respectively.

In the embodiment of the present application, alternatively, the rotation axis of the first connecting member 31 and the rotation axis of the second connecting member 32 may be perpendicular to each other, and the rotation axis of the second connecting member 32 may be perpendicular to the moving direction of the connecting support 33.

Alternatively, the rotational axis of the first link 31 and the rotational axis of the second link 32 may be perpendicular to each other, or the rotational axis of the second link 32 may be perpendicular to the moving direction of the link holder 33.

With continued reference to fig. 3, the drive wheel 21, the first link 31 and the second link 32 are arranged side by side in this order in the moving direction of the link bearing 33. Thus, the output from the drive source is transmitted to the tension rope 41 through the drive wheel 21, the first link 31, and the second link 32.

Illustratively, the two first mounting arms 331 and the two second mounting arms 332 may extend from the holder body 330 in opposite directions, for example, in opposite directions along the length of the bracket 10. Specifically, the first mounting arm 331 projects from the holder body 330 toward the drive wheel 21, and the second mounting arm 332 projects from the holder body 330 away from the drive wheel 21.

In the embodiment of the present application, the support frame 10 may be placed in a lateral direction, for example, the frame-shaped surface of the support frame 10 is disposed substantially parallel to the ground, and the handle assembly 40 may be located on the top side of the support frame 10, so that an operator can stand on the top side of the support frame 10 to operate the handle assembly 40.

In the case of a lateral placement of the carriage 10, a guide structure may be provided to guide the movement of the sheave assembly.

Specifically, referring to fig. 3 and 4a, the guide rod 12 is disposed on the bracket 10, the connecting support 33 includes a hanging member 333 disposed on the second mounting arm 332, a top end of the hanging member 333 protrudes from a top side of the other portion of the connecting support 33, and the guide rod 12 is inserted into the hanging member 333 to hang the connecting support 33 on the guide rod 12. Thus, the connection holder 33 may be positioned at the bottom side of the guide bar 12, and the connection holder 33 may be hung on the guide bar 12 by the hanging member 333.

Specifically, the hanging member 333 includes a first hanging arm 3331 and a second hanging arm 3332 which are spaced apart from each other, and a connecting portion 3333 connected between the first hanging arm 3331 and the second hanging arm 3332, and the first hanging arm 3331, the second hanging arm 3332 and the connecting portion 3333 together define a receiving space 3334 for receiving the guide bar 12.

As described above, the hanging member 333 is hung on the guide bar 12 such that the connection support 33 can slide along the guide bar 12 by the output rope 22 or the tensile rope 41, and in order to reduce frictional resistance between the connection portion 3333 and the guide bar 12, the connection portion 3333 may be provided as rollers rotatably supported on the first and second hitching

arms

3331 and 3332.

In addition, optionally, a guide groove into which the guide rod 12 can be inserted is formed in the wheel surface of the roller, and the guide groove extends along the circumferential direction of the roller to form an annular groove.

Here, the number of the connection portions 3333 may be at least two, and the at least two connection portions 3333 are arranged at intervals in the length direction of the guide bar 12. So that the engagement of the hooking member 333 and the guide bar 12 is more stable.

In the embodiment, referring to fig. 2, two ends of the tensile cord 41 are linked with the two handle assemblies 40, and a part of the cord segment of the tensile cord 41 is wound on the second connecting member 32, and the second connecting member 32 can be moved towards the driving wheel 21 by the connecting support 33, so as to apply a counterweight pulling force to the two handle assemblies 40 through the tensile cord 41.

The handle assembly 40 may include a handle 42, and the linkage of both ends of the tensile cord 41 to the handle assembly 40 may include the case where both ends of the tensile cord 41 are directly connected to the handle 42. In this case, when the handle 42 is pulled, the tensile cord 41 moves along with the handle 42, the second link 32 moves away from the driving wheel 21 by the tensile cord 41, and at this time, the first link 31 also moves away from the driving wheel 21 by the second link 32, and since the other end of the output cord 22 is fixed to the guide bar support 24, the output cord 22 is released from the driving wheel 21 by the first link 31, which causes the driving wheel 21 to rotate therewith, and the driving source applies a counter weight pulling force (also referred to as a counter weight force) to the driving wheel 21, which resists rotation of the driving wheel 21, to the handle 42 through the first link 31, the second link 32, and the tensile cord 41, and generates a pulling counter weight force to the pulling action of the operator.

In the embodiment of the present application, as described above, the first connecting member 31 and the second connecting member 32 are fixed relative to each other by the connecting support 33, so that when the output cord 22 is wound around the driving wheel 21, the second connecting member 32 is moved toward the driving wheel 21 by the first connecting member 31 and the connecting support 33.

Fig. 4b is a schematic diagram of another structure of a distribution unit in the strength training machine according to the embodiment of the present application. Referring to fig. 4b, as an alternative embodiment, the weight assembly 2 is further used for driving the second connecting member 32 to move away from the weight assembly 2, specifically, the strength training machine 100 may include a pulley 101 and a pulley 102 connected to the support frame 10, the pulley 101 and the pulley 102 are oppositely disposed, and the relative direction of the pulley 101 and the pulley 102 is perpendicular to the moving direction of the first connecting member 31; a connecting rope 103 is further connected between the first connecting piece 31 and the second connecting piece 32, specifically, one end of the connecting rope 103 is connected with a wheel core of the first connecting piece 31, and the other end of the connecting rope 103 is connected to a wheel core of the second connecting piece 32 after passing over the pulley 101 and the pulley 102, so that linkage of the first connecting piece 31 and the second connecting piece 32 can be realized. Referring to fig. 4b, when the output cord 22 is wound around the driving wheel 21, the first link 31 moves in a direction approaching the driving wheel 21 in the counterweight assembly 2, and the second link 32 moves in a direction away from the counterweight assembly 2. It can be understood that fig. 4b is an improvement on the structure of the distribution unit, and the rest of the structure of the strength training machine is similar to the structure shown in fig. 2 and 3, and the description is omitted here.

Fig. 5 is a schematic structural view of a reel assembly in a strength training machine provided in an embodiment of the present application, fig. 6 is a schematic exploded structural view of the strength training machine provided in the embodiment of the present application, and fig. 7 is a bottom view of the strength training machine provided in the embodiment of the present application.

Referring to fig. 5, 6 and 7, as another alternative embodiment, the linkage between the two ends of the tensile cord 41 and the handle assembly 40 may further include the indirect connection between the two ends of the tensile cord 41 and the handle 42.

In the present embodiment, the strength training machine 100 further includes two sets of reel assemblies 50, both sets of reel assemblies 50 being disposed on the stand 10. For example, two sets of reel assemblies 50 may be provided at positions corresponding to the two handle assemblies 40, respectively.

Referring to fig. 5, each of the winding wheel assemblies 50 is formed with a first winding groove 51 and a second winding groove 52; both ends of the tensile cord 41 are respectively connected to the first winding grooves 51 of the two winding wheel assemblies 50, and portions of the tensile cord 41 near both ends thereof can be respectively wound on the corresponding first winding grooves 51.

The handle assembly 40 further includes output pulling ropes 55, a first end of each output pulling rope 55 is connected to the handle 42, a second end of each output pulling rope 55 is connected to the second winding grooves 52 of the two winding wheel assemblies 50, and each output pulling rope 55 can be wound on the corresponding second winding groove 52.

In each of the reel assemblies 50, the winding directions of the tensile cord 41 and the output cord 55 are opposite to each other, and the release speed of the output cord 55 at the corresponding second winding groove 52 is greater than the winding speed of the tensile cord 41 at the corresponding first winding groove 51.

In the above solution, the releasing speed of the output pulling rope 55 connected to the handle 42 is greater than the winding speed of the pulling rope 41, and the moving stroke of the handle 42 is greater than the moving stroke of the pulling rope 41 in the same time, that is, the moving stroke of the handle 42 is greater than the moving stroke of the second connecting member 32, so that the device is suitable for people with high height. In other words, even if the handle 42 is pulled by a person with a relatively large height, the stroke reflected on the second link 32 is relatively small, so that the size of the stand 10 in the longitudinal direction can be reduced, and the entire strength training machine 100 can be made compact.

In the illustrated embodiment, each of the reel assemblies 50 may include only one reel 54, with the reel 54 being rotatably supported on the frame 10.

Specifically, referring to fig. 5, the reel assembly 50 further includes a reel seat 53, the reel seat 53 including two support arms 531 and a main body portion 532 connected between the two support arms 531, the main body portion 532 being fixed to the bracket 10;

the ends of the two support arms 531 are provided with a first bearing housing 533 and a second bearing housing 534, respectively, and the reel 54 can be rotatably supported on the reel seat 53 by the first bearing housing 533 and the second bearing housing 534.

The first and second winding

grooves

51, 52 are juxtaposed on the outer peripheral surface of the reel 54, and each of the first and second winding

grooves

51, 52 extends in the circumferential direction of the reel 54. It is to be noted that the diameter of the bottom of the second winding groove 52 is larger than the diameter of the bottom of the first winding groove 51.

The two ends of the tensile cord 41 are respectively connected into the first winding grooves 51 on the two reels 54, and the cord sections of the tensile cord 41 close to the two ends can be respectively wound in the first winding grooves 51 on the corresponding reels 54;

the second ends of the output cords 55 are connected to the second winding grooves 52 of the two reels 54, respectively, and each output cord 55 is wound around the second winding groove 52 of the corresponding reel 54.

Referring to fig. 7, it can be understood that when the handle 42 is pulled, the output cord 55 is released from the second winding groove 52, the reel 54 rotates clockwise (referring to the direction of the reel 54 in fig. 5), and at this time, if the winding directions of the cord 41 and the output cord 55 are opposite, the cord 41 is gradually wound on the first winding groove 51 while the output cord 55 is released from the second winding groove 52. It is to be noted that in the case where the diameter of the bottom surface of the second winding groove 52 is larger than the diameter of the bottom surface of the first winding groove 51, for example, in the case where the diameter of the bottom surface of the second winding groove 52 is n (n > 1) times the diameter of the bottom surface of the first winding groove 51, since the first winding groove 51 and the second winding groove 52 rotate in synchronization, the length of the output cord 55 newly released by the second winding groove 52 in the process is n times the length of the tensile cord 41 newly wound by the first winding groove 51 in the process during rotation of the reel 54.

Illustratively, when the handle 42 is pulled, the output cord 55 is released from the second winding groove 52 and the tensile cord 41 is gradually wound around the first winding groove 51 for the two winding wheel assemblies 50 on both sides of the stand 10. When the pulling stroke of the handles 42 is a, the release length of the output cord 55 is a, the winding lengths of both ends of the tensile cord 41 are a/n, when the two handles 42 are pulled simultaneously, the first winding grooves 51 on both sides wind the tensile cord 41 simultaneously, the reduction length of the entire tensile cord 41 is 2a/n, and the distance of the entire movement of the second link 32 is a/n. When only one of the handles 42 is pulled, only one side of the first winding groove 51 winds the tensile cord 41, the overall reduced length of the tensile cord 41 is a/n, and the second connecting member 32 moves a distance of a/2 n.

In the case of connecting both ends of the tensile cord 41 to the handles 42, when the pulling stroke of the handles 42 is a, and when the two handles 42 are pulled simultaneously, the distance moved by the second connecting member 32 is a; the second link 32 moves a distance of a/2 when the single handle 42 is pulled.

In the case where the tensile cord 41 is indirectly connected to the handle through the reel, the movement stroke of the dispensing unit (the movement stroke of the second link 32) can be reduced by using the reel assembly 50 of the present application, as compared to the case where the tensile cord 41 is directly connected to the handle 42, so that the entire strength training machine 100 can be made compact.

In the embodiment of the present application, referring to fig. 5, the reel assembly 50 further includes a rotating shaft 56, a through hole (not shown) extending along the axial direction of the reel 54 is provided in the reel 54, and the reel 54 is sleeved on the rotating shaft 56 and can move relative to the rotating shaft 56 along the axial direction of the rotating shaft 56. The first bearing block 533 is provided with a central screw hole 5331, the central screw hole 5331 is coaxial with the bearing in the first bearing block 533 and corresponds to the central screw hole 5331, the reel 54 further includes an external thread section 57 disposed on the side of the first winding slot 51, the external thread section 57 is inserted into the central screw hole 5331 and screwed with the central screw hole 5331 through a transmission thread.

Since the male thread section 57 of the reel 54 and the first bearing housing 533 are screwed, when the reel 54 rotates, the reel 54 also moves on the rotating shaft 56 in the axial direction of the rotating shaft 56 with the first bearing housing 533 fixed with respect to the holder 10, so that the winding process on the first winding section is equal-diameter spiral winding for the tensile cord 41, and the wound tensile cords 41 do not overlap each other. For the same reason, the output cord 55 is wound in the second winding groove 52 in a constant diameter spiral manner.

In the embodiment of the present application, the rotating shaft 56 is optionally a spline shaft, and the inner surface of the through hole of the reel 54 is provided with spline grooves (not shown) matching with the splines of the spline shaft. Since the rotary shaft 56 is a structure for transmitting torque, the engagement of the rotary shaft 56 and the reel 54 by spline pairs does not affect the movement of the reel 54 in the axial direction of the rotary shaft 56, nor the transmission of torque.

Alternatively, the male screw section 57, the first winding groove 51, and the second winding groove 52 are arranged in this order in the axial direction of the reel 54. The first winding groove 51 having a smaller diameter and the male thread section 57 are located on the same side of the reel 54.

In this embodiment, optionally, a rope threading hole (not shown) may be formed in the main body portion 532, the output rope 55 is threaded through the rope threading hole, the second end of the output rope 55 is provided with the limiting block 43, and the outer contour dimension of the limiting block 43 is greater than the inner diameter of the rope threading hole, so that the first end and the second end of the output rope 55 are located on two sides of the main body portion 532. Thus, even when the handle 42 is not connected to the output cord 55, the output cord 55 does not come off the cord threading hole.

Since the user may pull the handle 42 in different directions during the strength training, it is conceivable to provide a universal sleeve 44 through which the output cord 55 can be inserted in the cord threading hole.

Referring to fig. 7, the axial directions of the reels 54 in the two reel assemblies 50 are parallel, and the arrangement directions of the two reels 54 with respect to the bracket 10 are opposite.

Optionally, one of the two sets of wire spool assemblies 50 is located on the same side of the bracket 10 as the weight assembly 20. In other words, one of the winding wheel assemblies 50 corresponds to the position where the weight assembly 20 is disposed, and fig. 7 shows that the winding wheel assembly 50 on the left side of the drawing corresponds to the weight assembly 20, but the present application is not limited thereto, and the winding wheel assembly 50 on the right side of the drawing may correspond to the weight assembly 20.

In addition, in the present embodiment, the arrangement directions of the reels 54 in the two sets of reel assemblies 50 are opposite with respect to the carrier 10.

Illustratively, referring to fig. 7, the first winding slot 51 is above the second winding slot 52 for the reel 54 in the left-hand spool assembly 50, and the first winding slot 51 is below the second winding slot 52 for the reel 54 in the right-hand spool assembly 50.

In the present embodiment, the strength training machine 100 further includes a guide unit including a third fixed pulley 61 and a fourth fixed pulley 62 fixed to the carrier 10, the reel 54 on the right side in the drawing (i.e., the reel 54 in the reel assembly 50 on the opposite side from the weight assembly 20) in fig. 7 being located between the second link 32 and the third fixed pulley 61, the fourth fixed pulley 62 being located on the side of the reel 54 on the right side in the drawing facing away from the third fixed pulley 61; and, the tensile cord 41 passes over the second link 32, the third fixed sheave 61 and the fourth fixed sheave 62 in order.

Alternatively, the axial direction of the third fixed pulley 61, the axial direction of the second connecting member 32, and the axial direction of the fourth fixed pulley 62 are parallel.

In addition, the guide unit may further include a fifth fixed sheave 63, the fifth fixed sheave 63 being located between the fourth fixed sheave 62 and the reel 54 on the left side of the drawing plane in fig. 7 (i.e., the reel 54 in the reel assembly 50 on the same side as the weight assembly 20), and the tension cord 41 passing over the second link 32, the third fixed sheave 61, the fourth fixed sheave 62, and the fifth fixed sheave 63 in this order.

Referring to fig. 7, one end of the tension cord 41 is fixed to the first winding groove 51 of the reel 54 on the right side in the drawing, and the other end passes over the second link 32, the third fixed pulley 61, the fourth fixed pulley 62, and the fifth fixed pulley 63 and is fixed to the first winding groove 51 of the reel 54 on the left side in the drawing. The third, fourth and fifth fixed

pulleys

61, 62 and 63 are used to reverse the tensile cord 41 so that the tensile cord 41 can be wound on the reels 54 located on opposite sides of the bracket 10.

In the strength training machine of the embodiment of the application, one end of the output rope 22 is fixed on the driving wheel 21, and the other end of the output rope 22 passes through the first channel 301 and then is fixed relative to the bracket 10, and since the distribution unit 30 can be driven by the output rope 22 to move towards the driving wheel 21 in the winding process of the output rope 22 to the driving wheel 21, the distribution force applied to the distribution unit 30 is twice of the distribution force output by the driving wheel 21; in addition, two side rope sections of the tensile rope 41, which are away from the second channel 302, are respectively linked with the two handle assemblies 40, and part of the rope sections of the tensile rope 41 are arranged in the second channel 302 in a penetrating manner, so that the matching gravity borne by the two side rope sections of the tensile rope 41, which are close to the end parts, is half of the matching gravity borne by the distribution unit 30; i.e., the resulting output on both handle assemblies 40 is the same as the counterweight force output by the counterweight assembly 20. Compared with the prior art that the distribution unit distributes the counterweight output force of the counterweight source to half of the counterweight output force of the two handles, the counterweight device can change the output of the counterweight assembly 20 from one output to two outputs without reducing the weight of each handle assembly. Compared with the existing strength training machine, the strength training machine can obtain enough counterweight force on the handle 42 without increasing the power and the output of the counterweight assembly 20, thereby reducing the cost of the counterweight assembly 20 and ensuring that the weight training machine has smaller volume.

In the description of the present invention, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, an indirect connection through an intermediary, a connection between two elements, or an interactive relationship between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

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; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The strength training machine is characterized by comprising a bracket, a counterweight component, a distribution unit and two handle components, wherein the counterweight component, the distribution unit and the two handle components are arranged on the bracket; the counterweight assembly comprises a driving wheel and an output rope capable of being wound on the driving wheel, the distribution unit is slidably arranged on the bracket and is provided with a first channel and a second channel, two ends of the first channel and two ends of the second channel are communicated, and the distribution unit further comprises a tension rope;

one end of the output rope is fixed on the driving wheel, the other end of the output rope penetrates through the first channel and then is fixed relative to the support, and the first channel is driven to move towards the driving wheel in the process that the driving wheel winds the output rope;

partial rope sections of the tension rope penetrate through the second channel, the rope sections on two sides, away from the second channel, of the tension rope are linked with the two handle assemblies respectively, the second channel can drive the tension rope to move in the moving process, and therefore counterweight pulling force is applied to the two handle assemblies.

2. The strength training machine of claim 1, wherein the distribution unit includes a connection support, a first connector, and a second connector, the first connector and the second connector being disposed on the connection support, the first connector and the connection support together defining the first channel, the second connector and the connection support together defining the second channel.

3. The strength training machine of claim 2, wherein the first and second connectors are both pulleys; the first connecting piece and the second connecting piece are both rotatably supported on the connecting support.

4. The strength training machine of claim 3, wherein the connecting mount comprises a mount body, and two first mounting arms and two second mounting arms disposed on the mount body;

5. Strength training machine according to claim 4, characterized in that the axis of rotation of the first connecting element is perpendicular to the axis of rotation of the second connecting element and/or the axis of rotation of the second connecting element is perpendicular to the direction of movement of the connecting support.

6. Strength training machine according to claim 4, characterized in that the driving wheel, the first connecting element and the second connecting element are arranged side by side in succession in the direction of movement of the connecting support.

7. Strength training machine according to claim 6, characterized in that the first mounting arm projects from the seat body towards the drive wheel and the second mounting arm projects from the seat body away from the drive wheel.

8. The strength training machine of claim 4, wherein the bracket is provided with a guide rod, the connecting support comprises a hanging piece arranged on the second mounting arm, the top end of the hanging piece protrudes out of the top side of the other part of the connecting support, and the guide rod is arranged in the hanging piece in a penetrating way so as to hang the connecting support on the guide rod.

9. The strength training machine of claim 8, wherein the hanging member comprises a first hanging arm and a second hanging arm that are arranged at an interval, and a connecting portion connected between the first hanging arm and the second hanging arm, and the first hanging arm, the second hanging arm and the connecting portion together define an accommodating space for accommodating the guide rod.

10. The strength training machine of claim 9, wherein the connecting portion is a roller rotatably supported on the first and second hitching arms.