Multifunctional fitness equipment

Abstract

The present application is a multifunctional fitness equipment in the field of fitness equipment, which includes a frame, a back-arm training device for exercising the back and arms is arranged on one side of the frame; a leg training device is also arranged on one side of the frame; a chest-shoulder training device for exercising the chest and shoulders is also arranged on one side of the frame; and a weight device for providing weights to the back-arm training device, the chest-shoulder training device, and the leg training device is also arranged in the frame. The present application enables a fitness equipment to meet the fitness purposes of more than two areas of the body at the same time, and the functions are more comprehensive.

Description

Technical Field

[0001] The present application relates to the field of fitness equipment, and in particular to a multifunctional fitness equipment. Background Art

[0002] With the continuous improvement of living standards, people pay more and more attention to physical health. Therefore, fitness equipment has been more and more widely used in people's daily life. Fitness equipment is a kind of sports equipment used by people with fitness needs to achieve the effect of auxiliary exercise and physical fitness. There are different equipment for different effects.

[0003] Traditional fitness equipment has relatively single functions and can only meet the purpose of training one or two areas of the body. If you want to exercise more than two areas of the body, you need to use other fitness equipment to achieve the corresponding training purpose. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a multifunctional fitness equipment, which has the advantage that one fitness equipment can simultaneously meet the fitness goals of more than two areas of the body and has more comprehensive functions.

[0005] The multifunctional fitness equipment provided in this application adopts the following technical solution:

[0006] A multifunctional fitness equipment comprises a frame, one side of which is provided with a back-arm training device for exercising the back and arms; one side of the frame is also provided with a leg training device; one side of the frame is also provided with a chest-shoulder training device for exercising the chest and shoulders; and the frame is also provided with a counterweight device for providing counterweight to the back-arm training device, the chest-shoulder training device, and the leg training device.

[0007] By adopting the above technical scheme, since the fitness equipment provides a back and arm training device, a leg training device, and a chest and shoulder training device, the user can exercise the back muscles, arm muscles, leg mechanism, shoulder muscles, and chest muscles according to their own needs, which provides the user with a variety of choices, and each independent device can realize muscle training of different parts according to its own movements, which greatly improves the muscle training effect, and one fitness equipment realizes muscle training of five major parts, which greatly improves the fitness efficiency.

[0008] Preferably, the back-arm training device includes an upper support rod fixed to one side of the frame, a lower pull rod is provided on the upper support rod, a first pull rope is provided on the lower pull rod, and the first pull rope is connected to the counterweight device through the inside of the upper support rod; a pair of support seats for supporting the human body are provided below the lower pull rod.

[0009] By adopting the above technical solution, when the user uses the back and arm training device for exercise, he first sits upright on the support seat, then holds the two ends of the pull-down bar with both hands, keeps the waist stable, and then pulls the pull-down bar downward with all his strength, thereby pulling the counterweight device through the first pull rope to achieve back and arm muscle training.

[0010] Preferably, a support for supporting the ground is fixed below the support seat, and a connecting rod for adjusting the support position of the support is also provided below the support seat, and both ends of the connecting rod are rotatably connected to the support seat and the frame respectively; a balancing pull rod is provided below the upper support rod, and a second pull rope for lifting the counterweight device is provided on the balancing pull rod.

[0011] By adopting the above technical solution, when the support is located below the pull-down bar, the user can exercise the arms and back by pulling down the pull-down bar; the user can also drive the support to the side away from the frame by hinged rotation of the connecting rod, and then the user sits on the support and pulls the horizontal pull bar by leaning forward, thereby exercising the back muscles. In addition, the movement of the support frees up extra space, which is convenient for the user to pull the horizontal pull bar in a standing posture, thereby exercising the arm muscles.

[0012] Preferably, the leg training device includes an auxiliary frame fixed to one side of the frame body, a back plate hinged on the auxiliary frame, a seat plate hinged on one side of the back plate, the bottom of the seat plate and the auxiliary frame are hinged to each other, a pair of positioning plates for positioning the rotation angle between the back plate and the seat plate are fixed to the bottom of the back plate, a first pin body that simultaneously passes through the positioning plate and the auxiliary frame is provided on one side of the auxiliary frame; the auxiliary frame is also provided with a leg weight-bearing assembly at the tail end of the seat plate.

[0013] By adopting the above technical solution, the user can adjust the hinge angle of the back plate and the seat plate so that the back plate and the seat plate are close to a plane or set the back plate and the seat plate at an angle, so that the user can adopt a lying or sitting posture, and then through the interaction of the leg weight-bearing components in different areas of the calf, the purpose of training the muscles in different areas of the leg can be achieved.

[0014] Preferably, the leg weight-bearing assembly includes a first extension rod hinged to the auxiliary frame at the rear of the seat plate, a first sleeve is sleeved on the first extension rod, the first sleeve is connected to a first limiting roller for limiting the ankle when lying prone, and the first sleeve is threadedly connected to a first bolt for limiting the sliding position of the first sleeve; a second extension rod is also fixedly connected to the side of the first extension rod facing the ground, a second sleeve is sleeved on the second extension rod, the second sleeve is fixedly connected to a second limiting roller for limiting the ankle when sitting, and the second extension rod is connected to a third pull rope for lifting the counterweight device.

[0015] By adopting the above technical solution, when the user is in a sitting or lying position, the user can adjust the position of the second limiting roller by sliding the second sleeve and the second extension rod according to the length of his or her thigh, so that the second limiting roller is located at the connection between the instep and the foot, and the third pull rope is pulled by rotating the calf to realize the lifting of the counterweight device, thereby achieving the purpose of leg training.

[0016] Preferably, an extension frame is connected to one side of the frame, and the chest and shoulder training device includes a back support plate arranged on the extension frame and hinged to the extension frame, a lower support plate slidably connected to the extension frame for supporting the buttocks is arranged below the back support plate, a connecting rod hinged to the frame body is arranged above the back support plate, a lifting rod is hinged to the connecting rod above the lower support plate, a second pin body for adjusting the initial position of the lifting rod is arranged on one side of the lifting rod, and a fourth pull rope for lifting the counterweight device is connected to the end of the connecting rod facing away from the lifting rod.

[0017] By adopting the above technical solution, the user sits on the lower support board, then leans his back on the back support board, then lifts the lifting bar with his arms, and pulls the counterweight device through the fourth pull rope, thereby exercising the chest muscles and shoulder muscles; this can also be used to adjust the initial angle of the lifting bar through the hinge angle between the connecting bar and the lifting bar, so as to achieve an effect suitable for different groups of people.

[0018] Preferably, a pair of winding devices for winding the ropes are respectively provided on the first pull rope, the second pull rope, the third pull rope and the fourth pull rope; the winding device comprises a slider slidably connected to the frame along the height direction of the frame, and the slider is interconnected with the first pull rope, the second pull rope, the third pull rope or the fourth pull rope; a rotating drum is rotatably connected to the slider, and an auxiliary pull wire is wound around the circumference of the rotating drum, one end of the auxiliary pull wire is fixed to the rotating drum, and one end of the auxiliary pull wire is fixed to the counterweight device; a torsion spring is provided in the rotating drum, which drives the rotating drum to rotate and wind the auxiliary pull wire when the counterweight device is lifted; when the counterweight device is in the initial state, the torsion spring is in the maximum tension state, so that after the slider is lifted, it can drive the counterweight device to be lifted through the auxiliary pull wire.

[0019] By adopting the above technical scheme, since the back and arm training device, the leg training device, and the chest and shoulder training device share a set of counterweight devices, although the overall counterweight of the fitness equipment is reduced, the first pull rope, the second pull rope, the third pull rope, and the fourth pull rope jointly pull the counterweight device. When one of them is working, it will cause the non-working ropes to loosen, affecting the positioning of the ropes. Therefore, the setting of the winding device can automatically wind up the other non-working ropes when one rope is working, and keep the ropes in a tensioned state, thereby reducing the failure rate of the fitness equipment when it is working.

[0020] Preferably, a screw is fixed to the slider, and an internal thread matching the screw thread is provided on the inner wall of the rotating cylinder. A torsion spring is provided in the rotating cylinder, one end of the torsion spring is fixed to the screw, and a pair of limit blocks for limiting the other end of the torsion spring are fixed in the rotating cylinder; a limit column fixed to the slider is provided on one side of the screw, and a notch is provided on the rotating cylinder for limiting the relative rotation of the screw and the rotating cylinder when the rotating cylinder rotates close to the limit column, and when the counterweight device is in the initial position, the limit block is stuck in the notch.

[0021] By adopting the above technical solution, when the staff lifts the counterweight device, the limit column is stuck in the notch of the corresponding rotating drum, thereby reducing the burden of the torsion spring. When the counterweight device is lifted, the remaining winding devices will be separated from the pulling force of the auxiliary pull wire and will only be subject to the rebound force of the torsion spring, so that the auxiliary pull wire is wound on the circumference of the rotating drum and the non-working auxiliary pull wire is kept in a taut state, thereby ensuring the normal operation of the fitness equipment.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Reduce the weight of the whole fitness equipment; the back and arm training device, leg training device, chest and shoulder training device use the same counterweight device, and reduce the independent counterweight device, thus reducing the overall weight of the whole fitness equipment;

[0024] 2. Improved fitness efficiency; the fitness equipment combines back and arm training devices, leg training devices, chest and shoulder training devices, which can meet the fitness and training of muscles in multiple parts of the body, with richer functions and better training effects;

[0025] 3. The practical failure rate of fitness equipment is reduced. Due to the setting of the winding device, when the counterweight device is lifted, the auxiliary pull wire that is not working can also be wound through the winding device to keep the first pull wire, the second pull wire, the third pull wire and the fourth pull wire in a taut state, thereby reducing the failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the fitness equipment;

[0027] Figure 2 It is a schematic diagram of the overall structure of the back arm training device;

[0028] Figure 3 It is a schematic diagram showing one working state of the back arm training device;

[0029] Figure 4 It is a schematic diagram showing the overall structure of the leg training device;

[0030] Figure 5 It is a schematic diagram showing the working state of the leg training device using leg training;

[0031] Figure 6 It is a schematic diagram of the overall structure of the chest and shoulder training device;

[0032] Figure 7 It is a schematic diagram of the connection structure of the back support plate in the chest and shoulder training device;

[0033] Figure 8 It is a schematic diagram showing the connection relationship between the lifting bar and the connecting bar;

[0034] Fig. 9 It is a schematic diagram showing the overall structure of the counterweight device;

[0035] Fig.10 It is a schematic diagram showing the installation position of the winding device;

[0036] Fig.11 It is a schematic diagram of the overall structure of the winding device;

[0037] Fig.12 It is a cross-sectional view showing the layout of the internal structure of the drum.

[0038] Description of the accompanying drawings: 1, middle platform; 2, back arm training device; 21, lower support frame; 22, support beam; 23, upper support rod; 24, lower pull bar; 25, first pull rope; 26, support seat; 261, support seat; 262, support leg; 263, connecting rod; 27, leg press assembly; 271, leg press bar; 272, leg press roller; 273, alignment plate; 274, alignment hole; 275, positioning pin; 281, horizontal pull bar; 282, second pull rope; 28 3. Foot force rod; 3. Leg training device; 31. Auxiliary frame; 32. Backboard; 321. Back frame; 322. Give way frame; 33. Seat board; 34. Auxiliary support rod; 36. Positioning plate; 361. Positioning hole; 37. First pin body; 38. Leg weight bearing assembly; 381. First extension rod; 382. First sleeve; 383. First limiting roller; 384. First bolt; 385. Second extension rod; 386. Second sleeve; 387. Second Limit roller; 388, second bolt; 389, third pull rope; 4, chest and shoulder training device; 411, extension frame; 412, vertical beam; 42, back support plate; 421, adjustment plate; 422, adjustment hole; 43, third pin body; 44, lower support plate; 441, third sleeve; 442, slide bar; 443, fourth pin body; 444, plug hole; 45, lifting bar; 46, fixed plate; 47, connecting bar; 48, movable plate; 481, connecting hole; 49, Fourth pull rope; 40, second pin body; 5, counterweight device; 51, frame; 52, vertical shaft; 53, counterweight block; 54, driving plate; 55, perforation; 56, fifth pin body; 6, winding device; 61, connecting plate; 611, slide groove; 62, counterweight seat; 621, slider; 63, extension plate; 64, screw; 65, rotating drum; 651, notch; 66, auxiliary pull wire; 67, positioning shaft; 68, torsion spring; 69, limit block; 60, limit column. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-12 This application is described in further detail.

[0040] A multifunctional fitness equipment, such as Figure 1 As shown, it includes a middle platform 1 located in the middle of the fitness equipment, and a back and arm training device 2, a leg training device 3, and a chest and shoulder training device 4 are arranged around the middle platform 1; a weight device 5 is also arranged on the middle platform 1 to provide weight counterweights to the back and arm training device 2, the leg training device 3, and the chest and shoulder training device 4.

[0041] like Figure 2As shown, the back-arm training device 2 includes a lower support frame 21 fixed to the middle platform 1 and extending away from the middle of the middle platform 1. A support beam 22 is fixed above the lower support frame 21. An upper support rod 23 is fixedly connected to the side of the upper end of the support beam 22 away from the middle platform 1. A lower pull rod 24 is suspended at the tail of the upper support rod 23. A first pull rope 25 is fixed to the middle of the lower pull rod 24. The upper support rod 23 and the support beam 22 are hollow structures. One end of the first pull rope 25 penetrates into the upper support rod 23 and enters into the support beam 22, and is finally connected to the counterweight device 5. Moreover, the turning point of the first pull rope 25 is turned by a fixed pulley, thereby reducing the friction loss of the device on the first pull rope 25.

[0042] like Figure 2 As shown, a support base 26 for supporting the buttocks is provided below the pull-down bar 24, and the support base 26 includes a horizontally arranged support 261, and a support leg 262 arranged on the lower support frame 21 is fixed below the support 261. Two parallel connecting rods 263 are also provided on the lower surface of the support 261. The two connecting rods 263 are located on both sides of the support leg 262. One end of the connecting rod 263 is hinged to the lower surface of the support 261, and the other end of the connecting rod 263 is rotatably connected to the lower support frame 21, thereby ensuring the stability of the support 261.

[0043] like Figure 2 As shown, a leg pressing assembly 27 is also provided on the support beam 22, and the leg pressing assembly 27 includes a leg pressing lever 271 rotatably connected to the support beam 22, and two leg pressing rollers 272 are fixed to the end of the leg pressing lever 271, and the axes of the two leg pressing rollers 272 are located on the same straight line and are perpendicular to the extension direction of the upper support rod 23. The support beam 22 is also fixedly connected to an alignment plate 273 in the overlapping area where the leg pressing lever 271 rotates, and a plurality of alignment holes 274 are opened on the alignment plate 273, and a positioning pin 275 is provided on one side of the leg pressing lever 271 to penetrate the leg pressing lever 271 and insert it into the positioning hole 361.

[0044] When using the back-arm training device 2, the exerciser first sits on the support 261, then turns the leg-pressing bar 271, and when the leg-pressing roller 272 is pressed on the thigh, the positioning pin 275 is inserted into the positioning hole 361 corresponding to the positioning plate 36, thereby limiting the separation of the buttocks from the support 261. Then, the exerciser straightens the back, raises the arms to grasp the two ends of the pull-down bar 24, keeps the back upright and stretches the pull-down bar 24 downward. The pull-down bar 24 will pull the first pull rope 25, and finally lift the counterweight device 5, so as to achieve the purpose of stretching the back muscles by performing weight-bearing stretching.

[0045] like Figure 3As shown, a horizontal tie rod 281 is provided on the support beam 22, and the horizontal tie rod 281 is located below the leg press rod 271. A second pull rope 282 is connected to the middle of the horizontal tie rod 281. The other end of the second pull rope 282 passes through the support beam 22 and enters the counterweight device 5, and is finally connected to the counterweight device 5. The turning point of the second pull rope 282 is ensured by the turning of the fixed pulley to ensure the normal displacement of the second pull rope 282. A foot force rod 283 is also provided on the lower support frame 21 and located between the support seat 26 and the support beam 22. The middle part of the foot force rod 283 is fixedly connected to the lower support frame 21, and the extension direction of the foot force rod 283 is perpendicular to the extension direction of the lower support frame 21.

[0046] When the exerciser exercises the arm, the support 261 is first lifted, and the support leg 262 is supported on the ground away from the support beam 22 by rotating the connecting rod 263. Then the user sits on the support 261, straightens the leg and steps on the foot force rod 283. Then the user leans forward and holds the two ends of the horizontal pull bar 281 with both hands, and the purpose of arm muscle training is achieved by pulling the horizontal pull bar 281. In addition, due to the displacement of the support 261, extra standing space is vacated under the pull-down bar 24, which is convenient for the exerciser to operate the pull-down bar 24 or the horizontal pull bar 281 in a standing posture, thereby achieving the purpose of training muscles in different areas of the arm.

[0047] like Figure 4 As shown, the leg training device 3 includes an auxiliary frame 31 located at one side of the back and arm training device 2 and fixedly connected to the middle platform 1. The auxiliary frame 31 is provided with a back plate 32, a seat plate 33 and a leg weight-bearing assembly 38 in sequence from the side close to the middle platform 1 to the side away from the middle platform 1. A back frame 321 for strengthening the support strength of the back plate 32 is fixed on the bottom surface of the back plate 32, and the back frame 321 is rotatably connected to the auxiliary frame 31; a yielding frame 322 is fixedly connected to one end of the back frame 321 close to the seat plate 33, and the other end of the yielding frame 322 is mutually hinged with the bottom surface of the seat plate 33, so that the staff can adjust different exercise postures through the rotation angle of the back plate 32 and the seat plate 33. Two mutually parallel auxiliary support rods 34 are also provided on the bottom surface of the seat plate 33, one end of the auxiliary support rod 34 is mutually hinged with the bottom surface of the seat plate 33, and the other end of the auxiliary support rod 34 is mutually hinged with the auxiliary frame 31, thereby improving the stability of the seat plate 33.

[0048] like Figure 4 As shown, an arc-shaped positioning plate 36 is fixedly connected to the back frame 321 on the side away from the back plate 32, and a plurality of positioning holes 361 are opened on the positioning plate 36 along the arc direction of the positioning plate 36, and a first pin body 37 is passed through the area of ​​the auxiliary frame 31 overlapping with the displacement path of the positioning plate 36, and the first pin body 37 is located in the auxiliary frame 31 and the positioning hole 361 at the same time, thereby limiting the mutual rotation of the back plate 32 and the seat plate 33.

[0049] like Figure 5 As shown, the end of the auxiliary frame 31 is located at the rear of the seat plate 33, and the leg load-bearing assembly 38 includes a first extension rod 381 hinged at the rear of the auxiliary frame 31, and the first extension rod 381 is located on the extension line of the back plate 32 and the seat plate 33; a first sleeve 382 is sleeved on the first extension rod 381, and a first limiting roller 383 is arranged on one side of the first sleeve 382, ​​and the middle part of the first limiting roller 383 is fixedly connected to the first sleeve 382, ​​and the axis of the first sleeve 382 is perpendicular to the extension line of the first extension rod 381, and a first bolt 384 is also threadedly connected to the first sleeve 382, ​​so that the first bolt 384 The screw thread contacts the first extension rod 381, limiting the sliding position of the first sleeve 382 on the first extension rod 381; a second extension rod 385 is fixedly connected to the side of the first extension rod 381 facing the ground, a second sleeve 386 is sleeved on the second extension rod 385, a second limiting roller 387 arranged parallel to the first limiting roller 383 is fixedly connected to the second sleeve 386, the fixing point of the second limiting roller 387 and the second sleeve 386 is located in the middle of the second limiting roller 387, and a second bolt 388 is also threadedly connected to one side of the second sleeve 386, so as to adjust the sliding position of the second limiting roller 387 on the second extension rod 385. A third pull rope 389 is connected to the end of the second extension rod 385, and the third pull rope 389 is finally connected to the counterweight device 5 through the guidance of a plurality of fixed pulleys connected to the auxiliary frame 31.

[0050] The leg training device 3 has two working states. The staff can rotate the back plate 32 and the seat plate 33 to keep the back plate 32 and the seat plate 33 in the same plane, and then insert the first pin 37 into the corresponding positioning hole 361 of the positioning plate 36. Then the exerciser can adjust the sliding position of the first limiting roller 383 on the first extension rod 381 according to his / her height, so that the first limiting roller 383 is located at the ankle. Then the exerciser can lie on the back plate 32 with the thigh area supported by the seat plate 33, and then the two calf ankles hook the first limiting roller 383. Through the bending of the thigh and calf, the first extension rod 381 and the auxiliary frame 31 are driven to rotate mutually, and the third pull rope 389 is driven to move, so as to lift the weight device 5, and realize the training of the leg area muscles.

[0051] like Figure 5As shown, the exerciser can also rotate the back plate 32 and the seat plate 33 to keep the angle between the back plate 32 and the seat plate 33 between 90 degrees and 120 degrees, and fix the rotation angle between the back plate 32 and the seat plate 33 by inserting the first pin 37 and the corresponding positioning hole 361, so that the exerciser can exercise in a sitting position. Then the exerciser adjusts the sliding position of the second sleeve 386 to make the second limiting roller 387 located at the connection between the instep and the ankle, and then hooks the foot on the second limiting roller 387, and drives the displacement of the third pull rope 389 through the rotation between the calf and the thigh, thereby achieving the purpose of exercising the muscles in the leg area.

[0052] like Figure 6 As shown, the chest and shoulder training device 4 includes an extension frame 411 fixed to one side of the middle platform 1, a vertical beam 412 is vertically fixed upward on the extension frame 411, a pair of back support boards 42 for back support are arranged on the extension frame 411, a lower support board 44 for supporting the buttocks is also arranged at the end of the extension frame 411, and a lifting bar 45 for holding is also arranged above the back support board 42.

[0053] like Figure 7 As shown, the back side of the back support plate 42 and the extension frame 411 are hinged to each other, and an adjustment plate 421 is fixedly connected to the back of the back support plate 42, and a plurality of adjustment holes 422 are opened on the adjustment plate 421. A third pin body 43 is also penetrated on one side of the auxiliary frame 31 and the movable overlapping area of ​​the adjustment plate 421. When the third pin body 43 penetrates the extension frame 411 and the adjustment hole 422 at the same time, the rotation angle of the adjustment plate 421 and the extension frame 411 is limited, so that the user can adjust the rotation angle of the back support plate 42 according to his own needs. The extension frame 411 is located below the lower support plate 44 and is fixedly connected to a third sleeve 441, the axis of which is perpendicular to the ground; the lower support plate 44 is arranged horizontally, and a slide bar 442 is vertically fixedly connected to the lower surface of the lower support plate 44, the slide bar 442 is inserted into the third sleeve 441, and one side of the slide bar 442 is provided with four insertion holes 444 along the length direction of the slide bar 442, and one side of the third sleeve 441 is also penetrated with a fourth pin 443. The exerciser can adjust the height of the lower support plate 44 according to his / her body, and then insert the fourth pin 443 into the third sleeve 441 and the corresponding insertion hole 444 at the same time, so as to fix the height of the lower support plate 44, making the exerciser's operation more convenient.

[0054] like Figure 8As shown, the lifting bar 45 is U-shaped as a whole, and two mutually parallel fixed plates 46 are fixed in the middle of the lifting bar 45, and a connecting bar 47 is arranged between the two fixed plates 46, one end of the connecting bar 47 is rotatably connected to the two fixed plates 46, the middle part of the connecting bar 47 is rotatably connected to the vertical beam 412, the end of the connecting bar 47 passes through the vertical beam 412 and is located on the other side of the vertical beam 412, and the rotation axis of the connecting bar 47 and the vertical beam 412 is parallel to the rotation axis of the connecting bar 47 and the fixed plate 46. A movable plate 48 is fixed on one side of a fixed plate 46 of the connecting bar 47, and a plurality of connecting holes 481 are provided on the movable plate 48, and a second pin body 443 penetrating the fixed plate 46 is arranged on the side of the fixed plate 46 away from the movable plate 48, and the second pin body 443 is arranged in the fixed plate 46 and a connecting hole 481, so as to limit the rotation angle between the connecting bar 47 and the lifting bar 45. A fourth pull rope 49 is fixed to the tail of the connecting rod 47 . The fourth pull rope 49 is arranged upward and is turned by a positioning wheel and finally connected to the counterweight device 5 .

[0055] When using the chest and shoulder training device 4, the exerciser first adjusts the lifting height of the lower support plate 44 and the rotation angle of the back support plate 42 according to his / her height, and then adjusts the initial angle of the lifting bar 45 according to the position of the back support plate 42, so that the person can sit on the lower support plate 44, with his / her back leaning on the back support plate 42, and his / her hands can comfortably hold the ends of the lifting bar 45. By reciprocating the lifting of the lifting bar 45, the fourth pull rope 49 is moved, thereby driving the reciprocating lifting of the weight device 5, thereby achieving the purpose of exercising the chest and shoulder muscles.

[0056] like Fig. 9 As shown, the above-mentioned counterweight device 5 includes a frame 51 vertically arranged above the middle platform 1, and two vertical shafts 52 vertically fixed to the upper surface of the middle platform 1, and a plurality of counterweight blocks 53 are commonly penetrated by the two vertical shafts 52. A driving plate 54 is arranged between the two vertical shafts 52, and the driving plate 54 penetrates all the counterweight blocks 53 at the same time, and a through hole 55 for penetrating the driving plate 54 is arranged on one side of each counterweight block 53. The counterweight device 5 also includes a fifth pin body 56. The staff can insert the fifth pin body 56 into the through hole 55 of different counterweight blocks 53 according to the exercise situation, so that when the driving plate 54 is displaced, the counterweight block 53 inserted with the fifth pin body 56 and all the counterweight blocks 53 above it will be displaced together, thereby realizing the adjustment of different weights.

[0057] The back and arm training device 2, the leg training device 3, and the chest and shoulder training device 4 of the multifunctional fitness equipment are connected to the counterweight device 5 in the middle. Compared with the traditional fitness equipment, the different devices use independent counterweight devices 5, which greatly reduces the overall weight of the fitness equipment and brings convenience to the staff in transportation and installation. Moreover, one fitness equipment integrates multiple functions, achieves the purpose of fitness for multiple areas of the body, and greatly improves the fitness efficiency.

[0058] like Fig.10 As shown, the first pull rope 25, the second pull rope 282, the third pull rope 389, and the fourth pull rope 49 enter the frame 51 and are gathered at the top of the frame 51 through the steering of the fixed pulley, and then extend downward through the steering of the positioning wheel. A winding device 6 is provided at the tail of each of the first pull rope 25, the second pull rope 282, the third pull rope 389, and the fourth pull rope 49, which are interconnected with the counterweight device 5 through the winding device 6.

[0059] Since a set of weight-bearing device 5 is used, only one of the back and arm training device 2, the leg training device 3, and the chest and shoulder training device 4 of the fitness equipment can use the weight-bearing device 5 at the same time, and the other devices cannot work at the same time, so this multifunctional fitness equipment is more convenient for high-end single apartments or independent people to use. However, when the first pull rope 25 pulls the weight-bearing device 5 to work, the second pull rope 282, the third pull rope 389, and the fourth pull rope 49 will be in a loose state, which may easily cause the corresponding ropes to be separated from the positioning wheel, so the setting of the winding device 6 can solve this problem.

[0060] like Fig.10 As shown, a connecting plate 61 fixed to the two vertical shafts 52 is vertically arranged between the two vertical shafts 52. The connecting plate 61 is located at one-third of the vertical shaft 52 near the upper end. Four sliding grooves 611 are vertically opened on the connecting plate 61, and the four sliding grooves 611 are arranged equidistantly.

[0061] like Fig.11 and Fig.12As shown, the above-mentioned winding device 6 includes a counterweight seat 62, one side of the counterweight seat 62 is fixedly connected with a slider 621, the slider 621 is located in the corresponding slide groove 611 and is slidably connected to the connecting plate 61 along the length of the slide groove 611; the side of the counterweight seat 62 facing away from the slider 621 is fixedly connected with an extension plate 63, one side of the extension plate 63 is horizontally fixedly connected with a screw 64, the screw 64 is horizontally arranged, a rotating cylinder 65 is sleeved on the screw 64, and the inner circumference of the rotating cylinder 65 is provided with an internal thread that matches the thread of the screw 64; an auxiliary pull wire 66 is arranged on the circumference of the rotating cylinder 65, one end of the auxiliary pull wire 66 is fixedly connected to the rotating cylinder 65, and the other end of the auxiliary pull wire 66 is fixed on the above-mentioned driving plate 54; the length of the rotating cylinder 65 is longer than the length of the screw 64, so that when the screw 64 is flush with one end of the rotating cylinder 65, the rotating cylinder There is still spare space in 65; a positioning shaft 67 is coaxially arranged in the rotating drum 65, the diameter of the positioning shaft 67 is smaller than the diameter of the screw 64, and the end of the positioning shaft 67 is fixed to the end of the screw 64; a torsion spring 68 is sleeved on the positioning shaft 67, one end of the torsion spring 68 is fixed to the end of the screw 64, and two limit blocks 69 for limiting the other end of the torsion spring 68 are also fixed in the rotating drum 65. The two limit blocks 69 are located on both sides of the end of the torsion spring 68, so that when the rotating drum 65 and the screw 64 rotate relative to each other, the limit blocks 69 can not only drive the torsion spring 68 to elastically deform, but also with the displacement of the rotating drum 65, the limit blocks 69 will slide relative to the end of the torsion spring 68, but will not be separated from the end of the torsion spring 68, thereby ensuring that the elastic force of the torsion spring 68 is always transmitted to the rotating drum 65.

[0062] like Fig.11 As shown, a limiting column 60 is fixedly connected to the side of the extension plate 63 facing the screw rod 64, and the limiting column 60 is arranged close to the screw rod 64, and an arc-shaped notch 651 is provided on the end surface of the rotating drum 65 facing the limiting column 60. When the rotating drum 65 rotates and moves toward the extension plate 63, the limiting column 60 will slowly be located in the notch 651 and abut against the end of the notch 651, thereby limiting the continuous rotation of the screw rod 64 and the rotating drum 65. The ends of the first pull rope 25, the second pull rope 282, the third pull rope 389, and the fourth pull rope 49 are fixed on the corresponding counterweight seat 62.

[0063] When the winding device 6 is in the initial state, the auxiliary pull wire 66 is in a taut state, the slider 621 is located at the bottom of the slide slot 611, the limit column 60 is located in the notch 651, and the torsion spring 68 is in the maximum rebound position. The first pull rope 25, the second pull rope 282, the third pull rope 389, and the fourth pull rope 49 are pulled by the corresponding counterweight seat 62 and remain in a straight state. When the first pull rope 25 pulls the counterweight device 5, it will drive the slider 621 and the connecting plate 61 to slide, and the auxiliary pull wire (66) will pull the driving plate 54 to make the counterweight block 53 rise. Since the limit column 60 is located in the notch 651, it will limit the continuous rotation of the rotating drum 65 and the screw rod 64. At this time, the torsion spring 68 is at the maximum rebound position and is subjected to the pulling force of the counterweight block 53, and will not rotate. Also, due to the limitation of the limit column 60 and the notch 651, the force on the torsion spring 68 is reduced, and it is not easy to cause damage to the torsion spring 68. As the counterweight 53 rises, the auxiliary cables 66 of the remaining winding devices 6 are in a loose state. At this time, the corresponding torsion spring 68 is reduced due to the tension of the auxiliary cables 66, so that the rotating drum 65 is only subjected to the elastic force of the torsion spring 68, and drives the rotating drum 65 to rotate in the direction of the screw 64, driving the auxiliary cables 66 to be wound around the circumference of the rotating drum 65, so that the remaining loose auxiliary cables 66 are not easy to be entangled with each other, and will not cause the second cable 282, the third cable 389, and the fourth cable 49 to be separated from the corresponding fixed pulley, thereby ensuring the working stability of the fitness equipment. When the counterweight 53 returns to its original position, it will drive the auxiliary cables 66 to be separated from the rotating drum 65, and make the rotating drum 65 and the screw 64 rotate relative to each other, so that the torsion spring 68 is in a working state with maximum elastic force.

[0064] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multifunctional fitness equipment, characterized in that: The invention comprises a frame (51), wherein a back-arm training device (2) for training the back and arms is arranged on one side of the frame (51); a leg training device (3) is also arranged on one side of the frame (51); a chest-shoulder training device (4) for training the chest and shoulders is also arranged on one side of the frame (51); and a weight counterweight device (5) for providing weight counterweight to the back-arm training device (2), the chest-shoulder training device (4), and the leg training device (3) is also arranged inside the frame (51); The back-arm training device (2) comprises an upper support rod (23) fixed to one side of a frame (51), a lower pull rod (24) is arranged on the upper support rod (23), a first pull rope (25) is arranged on the lower pull rod (24), and the first pull rope (25) is connected to the counterweight device (5) through the interior of the upper support rod (23); a pair of support seats (26) for supporting a human body are arranged below the lower pull rod (24); A pair of winding devices (6) for winding the ropes are respectively provided on the first pull rope (25), the second pull rope (282), the third pull rope (389), and the fourth pull rope (49); the winding device (6) comprises a slider (621) slidably connected to the frame (51) along the height direction of the frame (51), and the slider (621) is connected to the first pull rope (25) or the second pull rope (282) or the third pull rope (389) or the fourth pull rope (49); a rotating drum (65) is rotatably connected to the slider (621), and the rotating drum (65) is connected to the rotating drum (65). 5) An auxiliary pull wire (66) is wound around the circumference, one end of the auxiliary pull wire (66) is fixed to the rotating drum (65), and one end of the auxiliary pull wire (66) is fixed to the counterweight device (5); a torsion spring (68) is arranged in the rotating drum (65) to drive the rotating drum (65) to rotate and wind the auxiliary pull wire (66) when the counterweight device (5) is lifted; when the counterweight device (5) is in the initial state, the torsion spring (68) is in the maximum tension state, so that after the slider (621) is lifted, it can drive the counterweight device (5) to lift through the auxiliary pull wire (66); The slider (621) is fixedly connected with a screw rod (64), the inner wall of the rotating cylinder (65) is provided with an internal thread matched with the thread of the screw rod (64), a torsion spring (68) is located in the rotating cylinder (65), one end of the torsion spring (68) is fixedly connected with the screw rod (64), and a pair of limit blocks (69) for limiting the other end of the torsion spring (68) are fixedly connected in the rotating cylinder (65); a limit column (60) fixed with the slider (621) is provided on one side of the screw rod (64), and a notch (651) is provided on the rotating cylinder (65) for limiting the relative rotation of the screw rod (64) and the rotating cylinder (65) when the rotating cylinder (65) rotates close to the limit column (60), and when the counterweight device (5) is located at the initial position, the limit block (69) is clamped in the notch (651); The counterweight device (5) comprises a frame (51) vertically arranged above the middle platform (1), and two vertical shafts (52) vertically fixed to the upper surface of the middle platform (1), the two vertical shafts (52) are jointly penetrated with a plurality of counterweight blocks (53), a driving plate (54) is arranged between the two vertical shafts (52), the driving plate (54) simultaneously penetrates all the counterweight blocks (53), and a through hole (55) for penetrating the driving plate (54) is arranged on one side of each counterweight block (53), the counterweight device (5) further comprises a fifth pin body (56), the staff can insert the fifth pin body (56) into the through hole (55) of different counterweight blocks (53) according to the exercise situation, so that when the driving plate (54) is displaced, the counterweight block (53) inserted by the fifth pin body (56) and all the counterweight blocks (53) above it will be displaced together, thereby achieving adjustment of different weights.

2. A multifunctional fitness device according to claim 1, characterized in that: A support (261) for supporting the ground is fixed below the support seat (26), and a connecting rod (263) for adjusting the supporting position of the support seat (261) is also provided below the support seat (26), and the two ends of the connecting rod (263) are rotatably connected to the support seat (26) and the frame (51) respectively; a horizontal pull rod (281) is provided below the upper support rod (23), and a second pull rope (282) for lifting the counterweight device (5) is provided on the horizontal pull rod (281).

3. A multifunctional fitness equipment according to claim 2, characterized in that: The leg training device (3) comprises an auxiliary frame (31) fixed to one side of a frame body (51), a back plate (32) being hingedly connected to the auxiliary frame (31), a seat plate (33) being hingedly connected to one side of the back plate (32), the bottom of the seat plate (33) being hingedly connected to the auxiliary frame (31), a pair of positioning plates (36) being fixedly connected to the bottom of the back plate (32) for positioning the back plate (32) and the seat plate (33) by a rotation angle, a first pin body (37) for simultaneously passing through the positioning plate (36) and the auxiliary frame (31) being arranged on one side of the auxiliary frame (31); and a leg weight-bearing assembly (38) is also arranged on the rear of the seat plate (33) on the auxiliary frame (31).

4. A multifunctional fitness equipment according to claim 3, characterized in that: The leg weight-bearing assembly (38) comprises a first extension rod (381) hinged to the auxiliary frame (31) at the rear of the seat plate (33); a first sleeve (382) is sleeved on the first extension rod (381); a first limiting roller (383) for limiting the ankle when lying prone is connected to the first sleeve (382); a first bolt (384) for limiting the sliding position of the first sleeve (382) is threadedly connected to the first sleeve (382); a second extension rod (385) is also fixedly connected to the side of the first extension rod (381) facing the ground; a second sleeve (386) is sleeved on the second extension rod (385); a second limiting roller (387) for limiting the ankle when sitting is fixedly connected to the second sleeve (386); and a third pull rope (389) for lifting the counterweight device (5) is connected to the second extension rod (385).

5. A multifunctional fitness equipment according to claim 4, characterized in that: An extension frame (411) is connected to one side of the frame (51), and the chest and shoulder training device (4) includes a back support plate (42) arranged on the extension frame (411) and hinged to the extension frame (411), and a lower support plate (44) is arranged below the back support plate (42) and is slidably connected to the extension frame (411) for supporting the buttocks. A connecting rod (47) is arranged above the back support plate (42) of the frame (51) and is hinged to the frame (51). A lifting rod (45) is hinged to the connecting rod (47) above the lower support plate (44), and a second pin body (40) for adjusting the initial position of the lifting rod (45) is arranged on one side of the lifting rod (45), and a fourth pull rope (49) for lifting the counterweight device (5) is connected to the end of the connecting rod (47) away from the lifting rod (45).

Images