Single-arm fitness training machine

Abstract

The invention provides a single-arm type fitness training machine, and relates to the technical field of fitness equipment, in order to solve the problem that fitness equipment occupies a large space, the single-arm type fitness training machine comprises a force arm, a stand column, a stretching mechanism and a main body storage box, and a containing cavity is formed in the main body storage box; one side of the main body storage box is provided with a storage opening communicated with the containing cavity, the bottom end of the stand column is rotatably connected to the storage opening of the main body storage box, when the stand column is perpendicular to or parallel to the top face of the main body storage box, the stand column is positioned through the first positioning mechanism, and the stretching mechanism extends from the stand column to the end, away from the stand column, of the force arm; the force arm can be stored in the containing cavity from the storage opening after being folded relative to the stand column. The one-armed fitness training machine is very convenient to operate when being stored and used, the occupied space can be reduced when the one-armed fitness training machine is stored, and the household use requirement is met.

Description

Technical Field

[0001] The invention relates to the technical field of fitness equipment, in particular to a single-arm fitness training machine. Background Art

[0002] As people pay more attention to their physical health, more and more people are joining the fitness team. In the gym or at home, fitness equipment is indispensable. Fitness equipment can provide resistance to help fitness people constantly break through their own strength limits to achieve muscle gain or body shaping. There are many fitness equipment that exercise the user's arms, back, shoulders and other muscle groups by pulling.

[0003] In order to facilitate fitness, many fitness enthusiasts prefer to do fitness training at home, so home fitness equipment has gradually attracted attention. Due to limited home space, the placement of fitness equipment occupies a large space in the home. Home fitness equipment on the market is usually not convenient to store and use, which affects the user's training experience. Summary of the invention

[0004] The purpose of the present invention is to provide a single-arm fitness training machine to solve the problem that fitness equipment occupies a large space. The single-arm fitness training machine of the present invention is very convenient to store and use, which improves the user's training experience. When stored, it can reduce the occupied space and meet the needs of home use.

[0005] The present invention provides a single-arm fitness training machine, comprising a force arm, a column, a stretching mechanism and a main body storage box, wherein a accommodating cavity is arranged in the main body storage box, and a storage port connected to the accommodating cavity is arranged on one side of the main body storage box, the bottom end of the column can be rotatably connected to the storage port of the main body storage box, when the column is perpendicular or parallel to the top surface of the main body storage box, the column is positioned by a first positioning mechanism, one end of the force arm is connected to the top end of the column by a second positioning mechanism and can adjust the vertical angle between the force arm and the column, and is connected to the top end of the column by a third positioning mechanism and can adjust the horizontal angle between the force arm and the column, the stretching mechanism extends from the column to the end of the force arm away from the column, and the force arm can be stored in the accommodating cavity from the storage port after being folded relative to the column.

[0006] As a preferred solution of the present invention, the first positioning mechanism includes a connecting shaft connected to the bottom end of the column, a positioning bearing seat connected to the main storage box, and a positioning pin assembly. The connecting shaft is horizontally arranged and rotatably connected to the positioning bearing seat. A limiting hole is arranged on the side wall of the connecting shaft. When the column is rotated to be perpendicular or parallel to the top surface of the main storage box, the positioning pin assembly can pass through the positioning bearing seat and be inserted into the limiting hole.

[0007] As a preferred solution of the present invention, the positioning pin assembly includes a positioning pin, a pin sleeve rod, a first elastic member and a handle, one end of the pin sleeve rod is connected to the positioning bearing seat, the positioning pin is arranged through the pin sleeve rod, a limiting ring is arranged at one end of the positioning pin, the first elastic member is sleeved on the positioning pin and one end thereof abuts against the limiting ring and the other end abuts against the end of the pin sleeve rod, the handle is connected to the positioning pin at the end of the pin sleeve rod away from the positioning bearing seat, and pulling the handle can drive the positioning pin to compress the first elastic member and withdraw it from the limiting hole.

[0008] As a preferred solution of the present invention, a slide rail arranged in the longitudinal direction is provided in the main body storage box, the positioning bearing seat is connected to the slide block, and the slide block is slidably arranged on the slide rail.

[0009] As a preferred solution of the present invention, a pull-buckle locking mechanism is arranged in the main storage box, and the pull-buckle locking mechanism includes a pull rope, a lead assembly and multiple locking parts. The multiple locking parts are arranged in the main storage box and divide the main storage box into a first positioning area, a second positioning area and a sliding area. The first positioning area and the second positioning area are respectively located at the two ends of the main storage box in the longitudinal direction, and the sliding area is located between the multiple locking parts. The pull rope passes through the lead assembly and is connected to the multiple locking parts. Pulling the pull rope can change the locking state of the multiple locking parts, so that the slider can be locked in the first positioning area or the second positioning area.

[0010] As a preferred solution of the present invention, the second positioning mechanism includes a positioning gear, a connecting shell, an adjusting button and a sliding card block, the positioning gear is connected to the force arm and is connected to the connecting shell through a rotating shaft, the connecting shell is connected to the top of the column, one end of the sliding card block is provided with a card tooth matched with the positioning gear and the other end is connected to the connecting shell through a second elastic member, the sliding card block can be slidably arranged in the connecting shell, the adjusting button can be rotatably connected to the side of the connecting shell away from the force arm, and the adjusting button is connected to the sliding card block through an adjusting rod; a plurality of grooves are arranged in the connecting shell, a ball is arranged in each of the grooves, and a slide groove arranged along its sliding direction is arranged on the lower side of the sliding card block, and a plurality of the balls are correspondingly arranged in the slide groove.

[0011] As a preferred solution of the present invention, the third positioning mechanism includes an upper plate, a lower plate and a positioning pin, the upper plate is connected to the lower side of the connecting shell, the lower plate is connected to the top of the column, the upper plate is rotatably connected to the lower plate through a rotating shaft, a plurality of positioning grooves are arranged on the lower side of the upper plate, the plurality of positioning grooves are distributed in a ring shape around the center of the upper plate, the positioning pin is connected to the lower plate and can pass through the lower plate and be inserted into different positioning grooves.

[0012] As a preferred embodiment of the present invention, the stretching mechanism includes a tension rope, a handle, a first guide wheel group, a second guide wheel group, a third guide wheel group, a tension sensor, a hanging wheel and a counterweight assembly. The first guide wheel group is arranged at the positioning gear, the second guide wheel group is arranged in the connecting shell, the third guide wheel group is arranged at one end of the force arm close to the handle, the tension sensor is connected to the top of the column, the counterweight assembly is connected to the lower side of the hanging wheel, one end of the tension rope is connected to the handle, and the other end of the tension rope passes through the third guide wheel group and extends out of the force arm, passes through the first guide wheel group, the second guide wheel group and the hanging wheel in sequence, and then is connected to the tension sensor.

[0013] As a preferred solution of the present invention, the counterweight assembly includes a guide block, a connecting mechanism and a plurality of counterweight plates. A guide rail is provided inside the column along its length direction. The guide block is slidably connected to the guide rail. The guide block is connected to the counterweight plates through the connecting structure.

[0014] As a preferred embodiment of the present invention, it also includes a kettlebell, wherein an inner cavity is arranged inside the kettlebell, a lower opening connected to the inner cavity is arranged at the bottom of the kettlebell, a fixing bolt is arranged in the inner cavity, the fixing bolt is arranged along the axis of the kettlebell and the top end thereof is connected to the top surface of the kettlebell, the bottom end of the fixing bolt extends to the lower opening, and a plurality of weight plates are detachably connected to the fixing bolt.

[0015] Compared with the prior art, the present invention has the following positive effects:

[0016] The single-arm fitness training machine provided by the present invention comprises a lever arm, a column, a stretching mechanism and a main body storage box. A accommodating cavity is arranged in the main body storage box, and a storage port connected to the accommodating cavity is arranged on one side of the main body storage box. The bottom end of the column can be rotatably connected to the storage port of the main body storage box. When the column is perpendicular or parallel to the top surface of the main body storage box, the column is positioned by a first positioning mechanism. One end of the lever arm is connected to the top end of the column by a second positioning mechanism and can adjust the vertical angle between the lever arm and the column, and is connected to the top end of the column by a third positioning mechanism and can adjust the horizontal angle between the lever arm and the column. The stretching mechanism extends from the column to the end of the lever arm away from the column. After the lever arm is folded relative to the column, it can be stored in the accommodating cavity from the storage port. When the single-arm fitness training machine of the present invention needs to be stored, the force arm and the column are folded relative to each other, the force arm is rotated and fixed on one side of the column, and then the column and the forearm are rotated 90° to a horizontal state, and then pushed into the accommodating cavity from the storage opening to achieve storage. When it is necessary to exercise, the column and the forearm are pulled out horizontally from the storage opening of the accommodating cavity. After they are in place, the column and the forearm are vertically rotated 90° upward. After the column is pushed to the upper side of the main storage box, the column is locked by the first positioning mechanism to keep it in an upright state, the second positioning mechanism is adjusted to realize the vertical rotation of the forearm, and the third positioning mechanism is adjusted to realize the horizontal rotation of the force arm. The single-arm fitness training machine is very convenient to operate when stored and used, which improves the user's training experience. In addition, in the storage state, the force arm and the column can be stored in the main storage box to reduce the occupied space and meet the needs of family use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the single-arm fitness training machine of the present invention from a first viewing angle;

[0019] Figure 2 It is a structural schematic diagram of the single-arm fitness training machine of the present invention from a second viewing angle;

[0020] Figure 3 It is a front view of the single-arm fitness training machine of the present invention;

[0021] Figure 4 for Figure 3Cross-sectional view of AA in the middle;

[0022] Figure 5 for Figure 4 A partial enlarged view of B in the middle;

[0023] Figure 6 for Figure 4 A partial enlarged view of middle C;

[0024] Figure 7 It is a structural schematic diagram of the counterweight assembly in the present invention;

[0025] Figure 8 is a schematic structural diagram of the second positioning mechanism in the present invention;

[0026] Fig. 9 is a schematic diagram of the internal structure of the first positioning mechanism in the present invention;

[0027] Fig.10 It is a schematic diagram of the internal structure of the main storage box in the present invention;

[0028] Fig.11 It is a structural schematic diagram of the buckle locking mechanism in the present invention;

[0029] Fig.12 It is a front view of the column in the present invention;

[0030] Fig.13 is a schematic diagram of the structure of a kettlebell in the present invention;

[0031] Fig.14 Schematic diagram of the internal structure of the kettlebell of the present invention.

[0032] In the figure: 1. main storage box; 11. storage opening; 12. hand pull ring; 13. roller; 14. slide rail; 15. slide block; 161. lock member; 162. pull rope; 1631. first lead member; 1632. second lead member; 164. pull wire assembly; 171. first positioning area; 172. sliding area; 173. second positioning area; 18. rotating wheel; 2. column; 21. guide rail; 22. vertical bar opening; 3. force arm; 31. bearing; 32. steering head; 33. guide tube; 4. stretching mechanism; 41. handle; 42. pull rope; 43. first guide wheel group; 44. second guide wheel group; 45. hanging wheel; 46. tension sensor; 47. counterweight assembly; 471. guide block; 472. connecting rod Connecting mechanism; 4721, connecting pin; 4722, fixing block; 473, counterweight plate; 48, third guide wheel group; 5, second positioning mechanism; 51, positioning gear; 52, sliding block; 521, slide groove; 53, connecting shell; 54, adjusting rod; 55, second elastic member; 56, ball; 57, adjusting button; 6, first positioning mechanism; 61, connecting shaft; 611, limiting hole; 62, positioning bearing seat; 63, positioning pin assembly; 631, pin sleeve rod; 632, positioning pin; 6321, limiting ring; 633, handle; 634, first elastic member; 7, kettlebell; 71, lower opening; 72, fixing bolt; 8, third positioning mechanism; 81, upper plate; 82, lower plate; 83, positioning pin. DETAILED DESCRIPTION

[0033] In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means two or more than two; the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "front end", "back end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplification, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0035] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings.

[0036] Embodiment 1:

[0037] This embodiment provides a single-arm fitness training machine, such as Figure 1-Figure 14 As shown, it includes a lever arm 3, a column 2, a stretching mechanism 4 and a main body storage box 1. The stretching mechanism 4 is used for the exerciser to apply a pulling force thereto for exercise.

[0038] A storage cavity is provided in the main storage box 1, and a storage port 11 communicating with the storage cavity is provided on one side of the main storage box 1. The bottom end of the column 2 can be rotatably connected to the storage port 11 of the main storage box 1. When the column 2 is perpendicular or parallel to the top surface of the main storage box 1, the column 2 is positioned by the first positioning mechanism 6. One end of the arm 3 is connected to the top of the column 2 by the second positioning mechanism 5 and can adjust the vertical angle between the arm 3 and the column 2, and is connected to the top of the column 2 by the third positioning mechanism 8 and can adjust the horizontal angle between the arm 3 and the column 2, so that the arm 3 and the column 2 can be folded relative to each other. The stretching mechanism 4 extends from the column 2 to the end of the arm 3 away from the column 2, and the stretching mechanism 4 is pulled toward the side away from the column 2 for exercise. After the arm 3 is folded relative to the column 2, it can be stored in the storage cavity from the storage port 11.

[0039] When the single-arm fitness training machine of this embodiment needs to be stored, the force arm and the column are folded relative to each other, so that the force arm is rotated and fixed to one side of the column, and then the column and the forearm are rotated 90 degrees to a horizontal state, and then pushed into the accommodating cavity from the storage opening 11 to achieve storage. When it is necessary to exercise, the column and the forearm are pulled out horizontally from the storage opening 11 of the accommodating cavity. After they are in place, the column and the forearm are vertically rotated 90 degrees upward. After the column is pushed to the upper side of the main storage box 1, the column is locked by the first positioning mechanism 6 to keep it in an upright state, the second positioning mechanism 5 is adjusted to realize the vertical rotation of the forearm, and the third positioning mechanism is adjusted to realize the horizontal rotation of the force arm.

[0040] The single-arm fitness training machine of this embodiment is very convenient to operate during storage and use, which improves the user's training experience. In the storage state, the arm and the column can be stored in the main storage box 1 to reduce the occupied space and meet the needs of family use.

[0041] Preferably, a hand pull ring 12 is provided on one side of the main storage box and a roller 13 is provided on the other side. Specifically, two rollers are provided, the roller is provided on the side close to the storage opening 11, and the hand pull ring 12 is provided on the side away from the storage opening 11. This facilitates the hand pull ring 12 to be pulled and rolled on the ground through the roller 13 in the storage state, thereby reducing the moving resistance of the training machine and making the single-arm fitness training machine easy to move.

[0042] As a preferred implementation mode, Figure 4 and 9 As shown, the first positioning mechanism 6 includes a connecting shaft 61 connected to the bottom end of the column 2 , a positioning bearing seat 62 connected to the main storage box 1 , and a positioning pin assembly 63 .

[0043] The connecting shaft 61 is disposed transversely and rotatably connected to the positioning bearing seat 62. Fig.12 and Fig.10 As shown, specifically, two positioning bearing seats 62 are provided, and the two positioning bearing seats 62 are respectively connected to both sides of the shaft 61 to provide a stable support for the column. A limiting hole 611 is provided on the side wall of the connecting shaft 61, and the limiting hole 611 includes a transverse section and a vertical section, and the transverse section and the vertical section are perpendicular to each other and are both extended from the side wall of the connecting shaft 61 to its axis. When the column 2 rotates to be perpendicular or parallel to the top surface of the main storage box 1, the positioning pin assembly 63 can pass through the positioning bearing seat 62 and be inserted into the limiting hole 611. Specifically, when the column 2 rotates to be perpendicular to the top surface of the main storage box 1 in the exercise state, the positioning pin assembly 63 is inserted into the transverse section of the limiting hole 611, and when the column 2 rotates to be parallel to the top surface of the main storage box 1 in the storage state, the positioning pin assembly 63 is inserted into the vertical section of the limiting hole 611.

[0044] The first positioning mechanism 6 in this embodiment can position the column 2 in the exercise state or the storage state, so that the structural state of the column is more stable.

[0045] As a preferred implementation mode, Figure 4 As shown, the positioning pin assembly 63 includes a positioning pin 632, a pin sleeve rod 631, a first elastic member 634 and a handle 633. The first elastic member 634 is a spring.

[0046] One end of the pin sleeve rod 631 is connected to the positioning bearing seat 62, specifically, the pin sleeve rod 631 and the positioning bearing seat 62 are connected by threads. The positioning pin 632 is arranged through the pin sleeve rod 631, and a limiting ring 6321 is arranged at one end of the positioning pin 632. The first elastic member 634 is sleeved on the positioning pin 632, and one end thereof abuts against the limiting ring 6321 and the other end abuts against the end of the pin sleeve rod 631. The handle 633 is connected to the positioning pin 632 at one end of the pin sleeve rod 631 away from the positioning bearing seat 62. Pulling the handle 633 can drive the positioning pin 632 to compress the first elastic member 634 and withdraw from the limiting hole 611. The positioning pin 632 can be pulled and moved in the pin sleeve rod 631.

[0047] When the state of the column needs to be adjusted, the connecting shaft 61 needs to be rotated in the positioning bearing seat 62, and the handle 633 is pulled to make the positioning pin 632 withdraw from the limiting hole 611. When the column is adjusted into place, the handle 633 is released, and the positioning pin 632 is automatically inserted into the limiting hole 611 under the action of the first elastic member 634 for re-positioning.

[0048] In this embodiment, the column can be unlocked by pulling the handle 633. The positioning pin assembly 63 is easy to operate and convenient for adjusting the use state of the column.

[0049] As a preferred implementation mode, Fig.10 and Fig.11 As shown, a longitudinally arranged slide rail 14 is provided in the main storage box 1, and the positioning bearing seat 62 is connected to the slider 15, and the slider 15 is slidably arranged on the slide rail 14. The slider 15 slides on the slide rail 14 to drive the positioning bearing seat 62 and the column to move. The main storage box 1 is a rectangular frame structure, and the storage port 11 is opened on its side elevation.

[0050] When the column 2 needs to be stored in the main storage box 1, after the column 2 and the lever arm are rotated to be parallel to the top surface of the main storage box 1, the column 2 and the lever arm are pushed from the storage opening 11 into the inner cavity of the main storage box 1, so that the slider 15 slides on the slide rail, thereby guiding the storage movement of the column 2 and the lever arm, making the storage more convenient.

[0051] As a preferred embodiment, a buckle locking mechanism is provided in the main storage box 1, such as Fig.10 and Fig.10 As shown, the buckle locking mechanism includes a drawstring 162, a lead assembly and a plurality of lock members 161. The lead assembly includes a first lead member 1631 and a second lead member 1632, and the first lead member 1631 and the second lead member 1632 are arranged on the same longitudinal line and located in the middle of the main storage box 1. The first lead member 1631 and the second lead member 1632 play a guiding role for the drawstring 162.

[0052] A plurality of locking members 161 are arranged in the main storage box 1 and divide the main storage box 1 into a first positioning area 171, a second positioning area 173 and a sliding area 172. The first positioning area 171 and the second positioning area 173 are respectively located at two ends of the main storage box 1 in the longitudinal direction, and the sliding area 172 is located between the plurality of locking members 161. The pull rope 162 passes through the lead assembly and is connected to the plurality of locking members 161. Pulling the pull rope 162 can change the locking state of the plurality of locking members 161, so that the slider 15 can be locked in the first positioning area 171 or the second positioning area 173.

[0053] Specifically, the buckle locking system in this embodiment uses two pull ropes to install four locks 161 near the four corners of the main storage box 1, so that the front side of the main storage box 1 forms a first positioning area 171, and the rear side of the main storage box 1 forms a second positioning area 173. When the column 2 slides to the front side of the main storage box 1 to open for exercise, the two locks 161 on the front side respectively limit the two positioning bearing seats 62 located in the first positioning area 171. When the column 2 slides to the rear side of the main storage box 1 for storage, the two locks 161 on the rear side respectively limit the two positioning bearing seats 62 located in the second positioning area 173.

[0054] Specifically, the buckle locking system in this embodiment also includes a pull wire assembly 164, which is arranged on the side of the second lead member 1632 away from the first lead member 1631, and the pull wire assembly 164 is connected to the pull rope. When the pull wire assembly 164 is pulled, two pull ropes can be pulled at the same time to simultaneously unlock the locking members on the left and right sides of the main storage box 1.

[0055] The buckle locking mechanism in this embodiment limits the position of the column in the main storage box 1, prevents the column 2 and the lever arm 3 from sliding when stored in the main storage box 1, and improves the stability of the column 2 and the lever arm 3 when stored in the main storage box 1.

[0056] Preferably, if Fig.10 and Fig.11 As shown, a rotating wheel 18 is also provided in the middle of the main body storage box 1 to support the column when the column moves in the main body storage box 1 and reduce the friction between the column and the main body storage box 1.

[0057] As a preferred implementation mode, Figure 5 and Figure 8 As shown, the second positioning mechanism 5 includes a positioning gear 51, a connecting shell 53, an adjustment button 57 and a sliding block 52. The positioning gear 51 is connected to the force arm 3 and is connected to the connecting shell 53 through a rotating shaft. The connecting shell 53 is connected to the top of the column 2. One end of the sliding block 52 is provided with a locking tooth matched with the positioning gear 51 and the other end is connected to the connecting shell 53 through a second elastic member 55. The sliding block 52 can be slidably arranged in the connecting shell 53. Specifically, as shown in FIG. Figure 8As shown, two positioning gears 51 and two sliding blocks 52 are provided, the two positioning gears 51 are connected in parallel, the two sliding blocks 52 are connected in parallel, and each positioning gear 51 corresponds to a sliding block 52, so as to further enhance the stability of the engagement between the positioning gear 51 and the sliding block 52. Preferably, the first positioning mechanism 6 further includes an adjustment rod 54, one end of which is rotatably connected to the sliding block 52 and the other end of which is rotatably connected to the adjustment button 57. The adjustment rod 54 is rotatably connected between the two sliding blocks 52.

[0058] The adjustment button 57 is rotatably connected to the side of the connection housing 53 away from the lever arm 3, and the adjustment button 57 is connected to the sliding block 52 through the adjustment rod 54. Figure 5 As shown, when it is necessary to adjust the vertical angle between the lever arm 3 and the column 2, the adjusting button 57 is turned, and the adjusting button 57 drives the sliding block 52 to move to the right through the adjusting rod 54, and then the position of the adjusting lever arm 3 is adjusted up and down. When it is adjusted to the right position, the adjusting knob is released, and the adjusting lever arm 3 moves to the left under the action of the second elastic member 55 and engages with the positioning gear 51 to position the lever arm 3.

[0059] In this embodiment, the sliding block 52 cooperates with the positioning gear 51 to enable the lever arm 3 to rotate up and down relative to the column 2, thereby adjusting the vertical angle between the lever arm 3 and the column 2. When in the storage state, the lever arm 3 can be folded toward the column 2 to reduce the occupied space.

[0060] As a preferred embodiment, a plurality of grooves are provided in the connection housing 53, each groove is provided with a ball 56, a slide groove 521 is provided on the lower side of the sliding block 52 along its sliding direction, and a plurality of ball 56 are correspondingly provided in the slide groove 521. The provision of the ball 56 can reduce the friction between the connection housing 53 and the sliding block 52, and at the same time guide the movement of the sliding block 52.

[0061] As a preferred embodiment, the third positioning mechanism 8 includes an upper plate 81, a lower plate 82 and a positioning pin 83. The upper plate 81 is connected to the lower side of the connecting shell 53, and the lower plate 82 is connected to the top of the column 2. The upper plate 81 is rotatably connected to the lower plate 82 through a rotating shaft, and the rotating shaft can be a plane thrust bearing to achieve smooth sliding. A plurality of positioning grooves 811 are arranged on the lower side of the upper plate 81, and the plurality of positioning grooves 811 are distributed in a ring shape around the center of the upper plate 81, with one positioning groove 811 distributed every 10°. The positioning pin 83 is connected to the lower plate 82 and can pass through the lower plate 82 and be inserted into different positioning grooves 811.

[0062] The third positioning mechanism 8 in this embodiment enables the lever arm 3 to rotate horizontally relative to the column 2 to adjust the horizontal angle between the lever arm 3 and the column 2. As a preferred embodiment, Figure 4 As shown, the stretching mechanism 4 includes a tension rope 42, a handle 41, a first guide wheel group 43, a second guide wheel group 44, a third guide wheel group 48, a tension sensor 46, a hanging wheel 45 and a counterweight assembly 47.

[0063] The first guide wheel group 43 is arranged at the positioning gear 51. Specifically, the first guide wheel group 43 is arranged between the two positioning gears 51, and the tension rope 42 passes through the two positioning gears 51 along the length direction of the force arm. The second guide wheel group 44 is arranged in the connecting housing 53, and the tension rope 42 passes through the second guide wheel group 44 and then extends into the column 2. In the exercise state, the first guide wheel group 43 guides the tension rope 42 in the longitudinal direction, and the second guide wheel group 44 and the hanging wheel 45 guide the tension rope 42 in the vertical direction.

[0064] The third guide wheel group 48 is arranged at one end of the force arm 3 close to the handle 41. Figure 6 As shown, a steering head 41 is provided at one end of the force arm 3 near the handle 41, a third guide group 48 is provided in the steering head 32, a guide tube is provided in one end of the force arm 3 near the steering head 32, bearings 31 are respectively sleeved on the outer sides of both ends of the guide tube, and the guide tube 33 is connected to the force arm 3 through the bearings. The pulling rope 42 passes through the third guide group 48 and the guide tube 33, so that the pulling rope 42 can be pulled in multiple directions and the friction on the pulling rope 42 is reduced.

[0065] The tension sensor 46 is connected to the top of the column 2 and to the lower plate 82. The counterweight assembly 47 is connected to the lower side of the hanging wheel 45. The counterweight assembly 47 has a downward pulling force on the tension rope 42 to increase the tension strength during exercise and improve the exercise effect.

[0066] One end of the tension rope 42 is connected to the handle 41, and the other end of the tension rope 42 passes through the third guide wheel group 48 and extends the force arm 3 to pass through the first guide wheel group, the second guide wheel group and the hanging wheel 45 in sequence, and then is connected to the tension sensor 46. During exercise, the exerciser pulls the handle 41 to pull the tension rope 42, and the tension rope 42 drives the counterweight assembly 47 to move up and down, thereby achieving the effect of exercise.

[0067] As a preferred implementation mode, Figure 4 and Figure 7 As shown, the weight assembly 47 includes a guide block 471, a connecting mechanism 472 and a plurality of weight plates 473. The number of weight plates 473 used can be adjusted according to the strength requirements of the exerciser.

[0068] A guide rail 21 is provided in the column 2 along its length direction, and a guide block 471 is slidably connected to the guide rail 21, and the guide block 471 is connected to the weight plate 473 through a connecting structure. Specifically, a connecting pin 4721 is connected to the connecting structure, and a fixing block 4722 is provided on the lower side of the connecting structure, and the fixing block 4722 is connected to the guide block 471. The connecting pin 4721 is detachably connected to the connecting structure, and a plurality of weight plates 473 are detachably mounted on the connecting pin 4721. A vertical bar opening 22 is provided on the side wall of the column 2 along its length direction, and the connecting pin 4721 passes through the vertical bar opening 22 and moves up and down along the vertical bar opening 22 during the up and down movement of the weight plate 473 when the tension rope 42 is pulled.

[0069] In this embodiment, the guide block 471 moves vertically up and down along the guide rail 21 to drive the weight plate 473 to move up and down. The guide rail 21 guides the up and down movement of the weight plate 473. The weight plate 473 moves smoothly to avoid shaking, making the exercise process safer.

[0070] As a preferred embodiment, the single-arm fitness training machine of this embodiment further includes a kettlebell 7, wherein an inner cavity is provided inside the kettlebell 7, and a lower opening 71 communicating with the inner cavity is provided at the bottom of the kettlebell 7. A fixing bolt 72 is provided in the inner cavity, and the fixing bolt 72 is provided along the axis of the kettlebell 7 and its top end is connected to the top surface of the kettlebell, and the bottom end of the fixing bolt 72 extends to the lower opening. A plurality of weight plates 473 are detachably connected to the fixing bolt 72.

[0071] The kettlebell 7 in this embodiment can be used in conjunction with the tension rope on the training machine. When the weight plates 473 on the training machine are not in use, the remaining weight plates 473 can be installed in the kettlebell 7 through fixing bolts for use as the weight of the kettlebell. The installation is convenient, and the weight of the kettlebell 7 can be adjusted easily.

[0072] The method of using the single-arm fitness training machine of this embodiment is as follows: Storage state: remove the gantry handle, fold the force arm relative to the column, remove the weight plate and the connecting pin 4721, lock the guide block 471 in the column, pull the positioning pin 632 at the outer end of the positioning bearing seat, and after the column and the force arm rotate 90° to a horizontal state, slide them into the accommodating cavity through the slider and lock them by the buckle locking mechanism. Exercise state: open the buckle locking mechanism, the column and the force arm slide out horizontally together, and after they are in place, the column and the force arm rotate 90° vertically upward, and after the column is pushed against the main storage box 1, lock the column state through the positioning pin assembly 63 at the outer end of the positioning bearing seat, adjust the column, and rotate the force arm upward. After adjusting the position, connect the gantry handle with the tension rope.

[0073] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make several modifications and improvements without departing from the creative concept of the present invention, which should be included in the protection scope of the present invention.

Claims

1. A single-arm fitness training machine, characterized in that: The invention comprises a force arm (3), a column (2), a stretching mechanism (4) and a main body storage box (1), wherein a storage cavity is arranged inside the main body storage box (1), a storage opening (11) communicating with the storage cavity is arranged on one side of the main body storage box (1), the bottom end of the column (2) can be rotatably connected to the storage opening (11) of the main body storage box (1), when the column (2) is perpendicular or parallel to the top surface of the main body storage box (1), the column (2) is positioned by a first positioning mechanism (6), one end of the force arm (3) is aligned with the column (2) and the bottom end of the column (2) is rotatably connected to the storage opening (11) of the main body storage box (1), and when the column (2) is perpendicular or parallel to the top surface of the main body storage box (1), the column (2) is positioned by a first positioning mechanism (6), and one end of the force arm (3) is aligned with the column (2) and the bottom end of the column (2) is rotatably connected to the storage opening (11) of the main body storage box (1). The top end of the column (2) is connected via a second positioning mechanism (5) and is capable of adjusting the vertical angle between the force arm (3) and the column (2), and is connected to the top end of the column (2) via a third positioning mechanism (8) and is capable of adjusting the horizontal angle between the force arm (3) and the column (2); the stretching mechanism (4) extends from the column (2) to an end of the force arm (3) away from the column (2); and after the force arm (3) is folded relative to the column (2), it can be received in the accommodating cavity from the receiving opening (11).

2. A single-arm fitness training machine according to claim 1, characterized in that: The first positioning mechanism (6) comprises a connecting shaft (61) connected to the bottom end of the column (2), a positioning bearing seat (62) connected to the main storage box (1) and a positioning pin assembly (63); the connecting shaft (61) is arranged horizontally and rotatably connected to the positioning bearing seat (62); a limiting hole (611) is arranged on the side wall of the connecting shaft (61); when the column (2) is rotated to be perpendicular or parallel to the top surface of the main storage box (1), the positioning pin assembly (63) can pass through the positioning bearing seat (62) and be inserted into the limiting hole (611).

3. A single-arm fitness training machine according to claim 2, characterized in that: The positioning pin assembly (63) includes a positioning pin, a pin sleeve rod (631), a first elastic member (634) and a handle (633). One end of the pin sleeve rod (631) is connected to the positioning bearing seat (62). The positioning pin passes through the pin sleeve rod (631). A limiting ring (6321) is provided at one end of the positioning pin. The first elastic member (634) is sleeved on the positioning pin and one end thereof abuts against the limiting ring (6321) and the other end abuts against the end of the pin sleeve rod (631). The handle (633) is connected to the positioning pin at one end of the pin sleeve rod (631) away from the positioning bearing seat (62). Pulling the handle (633) can drive the positioning pin to compress the first elastic member (634) and withdraw it from the limiting hole (611).

4. A single-arm fitness training machine according to claim 2, characterized in that: A slide rail (14) arranged longitudinally is provided in the main storage box (1); the positioning bearing seat (62) is connected to a slide block (15); and the slide block (15) is slidably arranged on the slide rail (14).

5. The single-arm fitness training machine according to claim 4, characterized in that: A buckle locking mechanism is arranged in the main storage box (1), and the buckle locking mechanism comprises a pull rope (162), a lead assembly and a plurality of locking members (161). The plurality of locking members (161) are arranged in the main storage box (1) and divide the main storage box (1) into a first positioning area (171), a second positioning area (173) and a sliding area (172). The first positioning area (171) and the second positioning area (173) are respectively located at two ends of the main storage box (1) in the longitudinal direction. The sliding area (172) is located between the plurality of locking members (161). The pull rope (162) passes through the lead assembly and is connected to the plurality of locking members (161). Pulling the pull rope (162) can change the locking state of the plurality of locking members (161), so that the slider (15) can be locked in the first positioning area (171) or the second positioning area (173).

6. The single-arm fitness training machine according to claim 1, characterized in that: The second positioning mechanism (5) comprises a positioning gear (51), a connecting shell (53), an adjusting button (57) and a sliding block (52); the positioning gear (51) is connected to the force arm (3) and connected to the connecting shell (53) via a rotating shaft; the connecting shell (53) is connected to the top of the column (2); one end of the sliding block (52) is provided with a locking tooth matched with the positioning gear (51) and the other end is connected to the connecting shell (53) via a second elastic member (55); the sliding block (52) can be The connecting shell (53) is slidably arranged in the connecting shell (53), and the adjusting button (57) can be rotatably connected to the side of the connecting shell (53) away from the force arm (3). The adjusting button (57) is connected to the sliding block (52) through an adjusting rod (54); a plurality of grooves are arranged in the connecting shell (53), and a ball (56) is arranged in each of the grooves; a slide groove (521) is arranged along the sliding direction thereof on the lower side of the sliding block (52), and a plurality of the ball (56) are correspondingly arranged in the slide groove (521).

7. A single-arm fitness training machine according to claim 6, characterized in that: The third positioning mechanism (8) comprises an upper plate (81), a lower plate (82) and a positioning pin (83); the upper plate (81) is connected to the lower side of the connecting shell (53); the lower plate (82) is connected to the top of the column (2); the upper plate (81) is rotatably connected to the lower plate (82) via a rotating shaft; a plurality of positioning grooves (811) are arranged on the lower side of the upper plate (81); the plurality of positioning grooves (811) are distributed in a ring shape around the center of the upper plate (81); the positioning pin (83) is connected to the lower plate (82) and can pass through the lower plate (82) and be inserted into different positioning grooves (811).

8. The single-arm fitness training machine according to claim 6, characterized in that: The stretching mechanism (4) comprises a tension rope (42), a handle (41), a first guide wheel group (43), a second guide wheel group (44), a third guide wheel group (48), a tension sensor (46), a hanging wheel (45) and a counterweight assembly (47). The first guide wheel group (43) is arranged at the positioning gear (51), the second guide wheel group (44) is arranged in the connecting shell (53), the third guide wheel group (48) is arranged at one end of the force arm (3) close to the handle (41), the tension sensor (46) is connected to the top of the column (2), the counterweight assembly (47) is connected to the lower side of the hanging wheel (45), one end of the tension rope (42) is connected to the handle (41), the other end of the tension rope (42) passes through the third guide wheel group (48) and extends out of the force arm (3), passes through the first guide wheel group, the second guide wheel group and the hanging wheel (45) in sequence, and is connected to the tension sensor (46).

9. The single-arm fitness training machine according to claim 8, characterized in that: The counterweight assembly (47) comprises a guide block (471), a connecting mechanism (472) and a plurality of counterweight plates (473). A guide rail (21) is arranged in the column (2) along its length direction. The guide block (471) is slidably connected to the guide rail (21). The guide block (471) is connected to the counterweight plates (473) via the connecting structure.

10. The single-arm fitness training machine according to claim 9, characterized in that: It also includes a kettlebell (7), wherein an inner cavity is arranged inside the kettlebell (7), and a lower opening (71) connected to the inner cavity is arranged at the bottom of the kettlebell (7), and a fixing bolt (72) is arranged in the inner cavity, and the fixing bolt (72) is arranged along the axis of the kettlebell (7) and its top end is connected to the top surface of the kettlebell, and the bottom end of the fixing bolt (72) extends to the lower opening, and a plurality of weight plates (473) are detachably connected to the fixing bolt (72).

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