Stretcher for physical fitness

Abstract

The invention belongs to the field of fitness equipment, and discloses a physical fitness stretcher which comprises a bottom frame, and a seat is arranged on the bottom frame. A bottom plate is fixed to the bottom frame and located below any end of the seat, a pair of symmetrically-arranged strip-shaped plates is arranged above the bottom plate, the strip-shaped plates are horizontally arranged, the seat is located on the vertically-symmetrical plane of the two strip-shaped plates, an adjusting mechanism is arranged on the bottom plate, one ends of the two strip-shaped plates are connected with the adjusting mechanism, and the other ends of the two strip-shaped plates are connected with the adjusting mechanism. The adjusting mechanism is used for adjusting the included angle between the two strip-shaped plates; a first supporting rod and a second supporting rod which are vertically arranged upwards are arranged at the two ends of the upper end face of the strip-shaped plate correspondingly, the second supporting rod is located at the end, away from the seat, of the strip-shaped plate, and the upper end of the second supporting rod is higher than the upper end of the first supporting rod; the shank can be swung in a reciprocating mode to relax muscles in the passive auxiliary leg separating and combining process, blood circulation of the shank part is promoted, the muscle activeness is improved, and the relaxing effect on the shank muscles can be improved.

Description

Technical Field

[0001] The invention belongs to the field of fitness equipment, and in particular relates to a stretching device for sports fitness. Background Art

[0002] In the field of fitness, there are two main methods of seated split leg training. One is to use the leg force to drive the fitness equipment to open, emphasizing the training and control of individual muscle strength; the other is to use the equipment to drive the two legs to open and close, realizing passive auxiliary movement, that is, using the equipment to drive the two legs to open and close naturally. These two training methods provide different options and are suitable for athletes with different fitness needs and individual conditions. According to personal goals and physical conditions, you can choose the appropriate method to perform seated split leg training to achieve the ideal exercise effect.

[0003] The passive assisted exercise of split legs can help relieve leg muscle fatigue to a certain extent. This passive stretching can help promote blood circulation, help restore muscle elasticity and flexibility, while improving joint flexibility, coordination and flexibility, and help eliminate leg soreness after sitting or standing for a long time.

[0004] In the passively assisted split-leg exercise, the user sits on the seat of the stretcher and places his feet on the two pedals of the stretcher respectively. The internal structure of the stretcher drives the two pedals to move back and forth, thereby driving the user's legs to be reciprocated and stretched. However, since the reciprocating passively assisted split-leg exercise mainly focuses on stretching the iliotibial band for relaxation, and the degree of bending of the thigh and calf remains unchanged during this process, and the calf in particular hardly moves during this process, the relaxation effect of the calf muscles being stretched is relatively small. Therefore, the passively assisted split-leg relaxation in the prior art has the problem of poor relaxation effect on the calf muscles. Summary of the invention

[0005] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a stretching device for sports and fitness, which solves the problem that the prior art has a poor relaxation effect on the calf muscles when passively assisting the legs to relax.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A stretcher for sports and fitness, comprising a base frame, on which a seat is arranged;

[0008] A bottom plate is fixed on the bottom frame, the bottom plate is located below either end of the seat, a pair of symmetrically placed strip plates are provided above the bottom plate, the strip plates are both placed horizontally, and the seat is located on the vertical symmetry plane of the two strip plates, an adjustment mechanism is provided on the bottom plate, one end of the two strip plates is connected to the adjustment mechanism, and the adjustment mechanism is used to adjust the angle between the two strip plates;

[0009] Both ends of the upper end surface of the strip plate are respectively provided with a first support rod and a second support rod placed vertically upward, the second support rod is located at the end of the strip plate away from the seat, and the upper end of the second support rod is higher than the upper end of the first support rod, the upper end of the second support rod is fixed with an ear plate horizontally facing the corresponding first support rod, the lower end of the ear plate is fixed with a sliding rod bent in a concave arc shape, the other end of the sliding rod is fixed to the upper end of the corresponding first support rod, a sliding block is slidably sleeved on the sliding rod, and a horizontally placed pedal roller is rotatably connected to the side of the two sliding blocks away from each other, and a lifting mechanism for driving the first support rod and the second support rod to rise and fall synchronously is provided on the strip plate;

[0010] A spring is sleeved on each slide bar, one end of the spring is fixed to the ear plate, and the other end of the spring is fixed to the slide block;

[0011] The lifting mechanisms each include a pair of sleeves vertically fixed on the corresponding strip plates, the upper ends of the sleeves are both open, and the first support rod and the second support rod at the upper end of any strip plate are slidably connected in the two sleeves respectively;

[0012] The lifting mechanism also includes a connecting bar arranged between the two sleeves, and a vertically placed slide groove is opened on one side of the two sleeves close to each other, and the two ends of the connecting bar are respectively slidably engaged in the two slide grooves, and the first support rod and the second support rod are respectively fixed to the two ends of the connecting bar;

[0013] The lifting mechanism also includes a screw rotatably connected to the corresponding strip plate, the screw and the sleeve are coaxially placed, the connecting strips are threadedly sleeved on the corresponding screw, and the lower end of the strip plate is fixedly installed with a rotating motor for driving the screw to rotate;

[0014] The adjustment mechanism includes a pair of rotating shafts rotatably connected to the bottom plate, the rotating shafts are both placed vertically, and the symmetry planes of the two rotating shafts coincide with the symmetry planes of the two shaped plates, the rotating shafts are both fixedly sleeved with gears, a double-sided rack is provided between the two gears, the central axis of the double-sided rack is located in the symmetry plane of the two rotating shafts, the gears are meshed with the double-sided rack, an electric push rod coaxially placed with the double-sided rack is fixedly installed on the bottom frame, the output end of the electric push rod is fixed to the double-sided rack through a fixing block, and the two shaped plates are respectively fixed on the two rotating shafts;

[0015] Universal wheels are fixedly mounted on the lower end surfaces of the strip plates away from the rotating shaft ends.

[0016] Beneficial effects of the present invention:

[0017] When in use, a person sits on the seat, and the user steps on the two pedal rollers with both feet respectively, and turns on the adjustment mechanism to reciprocate and adjust the angle between the two shaped plates, so that the user's legs can be reciprocated and closed to perform sitting open-and-closed leg stretching. At the same time, during the open-and-closed leg stretching process, the strip plate synchronously drives the first support rod, the second support rod, the ear plate and the slide bar. At this time, the user can reciprocate and extend the calf, so that the calf drives the pedal roller to swing back and forth along the slide bar. The calf can be reciprocated and swung during the passive auxiliary leg separation and closing process to relax the muscles, promote blood circulation in the calf area, increase muscle activity, and help improve the relaxation effect on the calf muscles.

[0018] Before use, the lifting mechanism can be turned on according to the user's calf length to synchronously lift and lower the first support rod and the second support rod, and the pedal roller can be automatically adjusted to a position suitable for the user's calf length, so as to facilitate use by users with different calf lengths and improve user comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall structure of the present invention from different viewing angles;

[0022] Figure 3 It is a partial schematic diagram of the second support rod of the present invention;

[0023] Figure 4 It is a partial structural schematic diagram of the gear of the present invention;

[0024] Figure 5 It is a partial structural schematic diagram of the chute of the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figures 1 to 5 As shown, a stretching device for sports and fitness includes a base frame 100, on which a seat 200 is provided;

[0027] A bottom plate 300 is fixed on the bottom frame 100, and the bottom plate 300 is located below either end of the seat 200. A pair of symmetrically placed strip plates 400 are provided above the bottom plate 300, and the strip plates 400 are both horizontally placed, and the seat 200 is located on the vertical symmetry plane of the two strip plates 400. An adjustment mechanism 500 is provided on the bottom plate 300, and one end of the two strip plates 400 is connected to the adjustment mechanism 500, and the adjustment mechanism 500 is used to adjust the angle between the two strip plates 400;

[0028] Both ends of the upper end surface of the strip plate 400 are respectively provided with a first support rod 600 and a second support rod 601 placed vertically upward, the second support rod 601 is located at the end of the strip plate 400 away from the seat 200, and the upper end height of the second support rod 601 is greater than the upper end height of the first support rod 600, the upper end of the second support rod 601 is fixed with an ear plate 602 horizontally facing the corresponding first support rod 600, the lower end of the ear plate 602 is fixed with a sliding rod 603 curved in a concave arc shape, the other end of the sliding rod 603 is fixed to the upper end of the corresponding first support rod 600, a sliding block 604 is slidably sleeved on the sliding block 603, and the sides of the two sliding blocks 604 away from each other are rotatably connected with a horizontally placed pedal roller 605, and the strip plate 400 is provided with a lifting mechanism 700 for driving the first support rod 600 and the second support rod 601 to rise and fall synchronously;

[0029] When in use, a person sits on the seat 200, and the user steps on the two pedal rollers 605 with both feet, and turns on the adjustment mechanism 500 to reciprocate and adjust the angle between the two strip plates 400, so that the user's legs can be reciprocated and closed to perform sitting open-and-closed leg stretching. At the same time, during the open-and-closed leg stretching process, the strip plate 400 synchronously drives the first support rod 600, the second support rod 601, the ear plate 602 and the slide bar 603. At this time, the user can reciprocate and extend the calf, so that the calf drives the pedal roller 605 to swing back and forth along the slide bar 603. The calf can be reciprocated and swung to relax the muscles during the passive auxiliary leg separation and closing process, thereby promoting blood circulation in the calf area, increasing muscle activity, and helping to improve the relaxation effect on the calf muscles.

[0030] Before use, the lifting mechanism 700 can be turned on to synchronously lift and lower the first support rod 600 and the second support rod 601 according to the user's calf length, and the pedal roller 605 can be automatically adjusted to a position suitable for the user's calf length, so as to facilitate use by users with different calf lengths and improve user comfort.

[0031] Preferably, the middle section of the pedal roller 605 is concave inwards to facilitate placement of the user's foot and improve the fit between the foot and the pedal roller 605 .

[0032] When the pedal roller 605 is pushed to swing back and forth, after the pedal roller 605 and the slider 604 are pushed to the end close to the second support rod 601, the calf needs to be retracted and swung backward. During this process, if the calf retracts faster, and the slider 604 and the pedal roller 605 are not moved and retracted synchronously, the sole of the foot and the pedal roller 605 will be separated. In order to further improve the stability of the fit between the pedal roller 605 and the sole of the foot, a spring 606 is sleeved on the slide bar 603, one end of the spring 606 is fixed to the ear plate 602, and the other end of the spring 606 is fixed to the slider 604; when the sole of the foot pushes the pedal roller 605 and the slider 604 to approach the ear plate 602, the slider 604 squeezes and compresses the spring 606, and when the user's calf retracts and swings back, the spring 606 pushes the slider 604 to drive the pedal roller 605, so that the pedal roller 605 is close to the sole of the foot and swings synchronously, thereby improving the stability of the fit between the sole of the foot and the pedal roller 605 during the swinging process of the calf;

[0033] The spring 606 is only used to push the slider 604 to move, so the elastic coefficient of the spring 606 is not easy to be too large to avoid affecting the swing of the user's calf.

[0034] In order to prevent the first support rod 600 and the second support rod 601 from tilting and to ensure guidance and stability during the lifting process, the lifting mechanism 700 includes a pair of sleeves 701 vertically fixed on the corresponding strip plates 400, and the upper ends of the sleeves 701 are open. The first support rod 600 and the second support rod 601 at the upper end of any strip plate 400 are respectively slidably connected in the two sleeves 701; through the setting of the sleeves 701, the first support rod 600 or the second support rod 601 is prevented from tipping over and the guidance is improved during the lifting and lowering movement.

[0035] In order to facilitate the control of the synchronous lifting and lowering movement of the first support rod 600 and the second support rod 601, the lifting mechanism 700 also includes a connecting bar 702 arranged between the two sleeves 701, and the two sleeves 701 are provided with vertically placed sliding grooves 7011 on one side close to each other. The two ends of the connecting bar 702 are respectively slidably engaged in the two sliding grooves 7011, and the first support rod 600 and the second support rod 601 are respectively fixed at the two ends of the connecting bar 702; through the setting of the connecting bar 702, the lifting and lowering of the first support rod 600 and the second support rod 601 are carried out synchronously.

[0036] In order to facilitate the automatic control of the lifting and lowering adjustment of the first support rod 600 and the second support rod 601, the lifting mechanism 700 also includes a screw rod 703 rotatably connected to the corresponding strip plate 400, the screw rod 703 and the sleeve 701 are placed coaxially, and the connecting strips 702 are threadedly sleeved on the corresponding screw rod 703, and the lower end of the strip plate 400 is fixedly installed with a rotating motor 704 for driving the screw rod 703 to rotate; by turning on the rotating motor 704, the rotating motor 704 drives the screw rod 703 to rotate, so that the connecting strip 702 is threadedly transmitted along the screw rod 703, driving the connecting strip 702 to move up and down, and the connecting strip 702 drives the first support rod 600 and the second support rod 601 to rise and fall synchronously.

[0037] In order to facilitate automatic adjustment of the angle between the two strips of the shaped plates 400, the adjustment mechanism 500 includes a pair of rotating shafts 501 rotatably connected to the bottom plate 300, the rotating shafts 501 are both placed vertically, and the symmetry planes of the two rotating shafts 501 coincide with the symmetry planes of the two strips of the shaped plates 400, and the rotating shafts 501 are both fixedly sleeved with gears 502, and a double-sided rack 503 is provided between the two gears 502, and the central axis of the double-sided rack 503 is located in the symmetry plane of the two rotating shafts 501, and the gears 502 are both fixedly sleeved with the double-sided rack 503. 03 meshing, an electric push rod 504 coaxially placed with the double-sided rack 503 is fixedly installed on the base frame 100, the output end of the electric push rod 504 is fixed to the double-sided rack 503 through a fixing block, and the two strip plates 400 are respectively fixed on the two rotating shafts 501; the double-sided rack 503 is driven to move back and forth by the electric push rod 504, thereby driving the two gears 502 to rotate, and the gear 502 drives the rotating shaft 501 and the strip plate 400, thereby realizing the control and adjustment of the angle between the two strip plates 400.

[0038] Universal wheels 800 are fixedly mounted on the lower end surfaces of the strip plates 400 away from the rotating shaft 501 .

[0039] Preferably, the base frame 100 includes a support frame and a guide beam 101, the guide beam 101 is coaxially placed with the electric push rod 504, a plurality of evenly distributed threaded holes 102 are provided on the guide beam 101, a sliding sleeve 103 is slidably connected to the guide beam 101, a circular through hole coaxially placed with the threaded hole 102 is provided on the sliding sleeve 103, any threaded hole 102 is internally threadedly connected with a bolt, both ends of the bolt pass through the circular through hole, a turning handle 104 is fixed to one end of the bolt, and a nut is threadedly connected to the other end of the bolt, the sliding sleeve 103 is located between the turning handle 104 and the nut, and the seat 200 is fixed to the sliding sleeve 103 by a fixing strip; the arrangement of the plurality of threaded holes 102 facilitates the adjustment of the position of the seat 200 along the guide beam 101.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A stretching device for physical fitness, comprising a base frame (100), a seat (200) being arranged on the base frame (100), characterized in that: A bottom plate (300) is fixed on the bottom frame (100), the bottom plate (300) is located below either end of the seat (200), a pair of symmetrically placed strip plates (400) are provided above the bottom plate (300), the strip plates (400) are both in a horizontally placed state, and the seat (200) is located on a vertical symmetry plane of the two strip plates (400), an adjustment mechanism (500) is provided on the bottom plate (300), one end of the two strip plates (400) are connected to the adjustment mechanism (500), and the adjustment mechanism (500) is used to adjust the angle between the two strip plates (400); Both ends of the upper end surface of the strip plate (400) are respectively provided with a first support rod (600) and a second support rod (601) placed vertically upwards, the second support rod (601) is located at the end of the strip plate (400) away from the seat (200), and the height of the upper end of the second support rod (601) is greater than the height of the upper end of the first support rod (600), and the upper end of the second support rod (601) is fixed with an ear plate (602) horizontally facing the corresponding first support rod (600), and the ear plate (602) A sliding rod (603) curved in a concave arc shape is fixed at the lower end, and the other end of the sliding rod (603) is fixed to the upper end of the corresponding first support rod (600). A sliding block (604) is slidably sleeved on the sliding rod (603), and the sides of the two sliding blocks (604) away from each other are rotatably connected to a horizontally placed pedal roller (605), and a lifting mechanism (700) for driving the first support rod (600) and the second support rod (601) to rise and fall synchronously is provided on the strip plate (400).

2. The stretching device for physical fitness according to claim 1, characterized in that: The slide bars (603) are sleeved with springs (606), one end of the springs (606) is fixed to the ear plates (602), and the other end of the springs (606) is fixed to the slide blocks (604).

3. The stretching device for physical fitness according to claim 2, characterized in that: The lifting mechanisms (700) each include a pair of sleeves (701) vertically fixed on the corresponding strip plates (400), the upper ends of the sleeves (701) are open, and the first support rod (600) and the second support rod (601) at the upper end of any strip plate (400) are respectively slidably connected in the two sleeves (701).

4. The stretching device for physical fitness according to claim 3, characterized in that: The lifting mechanism (700) further comprises a connecting bar (702) arranged between the two sleeves (701); a vertically placed slide groove (7011) is provided on one side of the two sleeves (701) close to each other; two ends of the connecting bar (702) are respectively slidably engaged in the two slide grooves (7011); and the first support rod (600) and the second support rod (601) are respectively fixed to two ends of the connecting bar (702).

5. The stretching device for physical fitness according to claim 4, characterized in that: The lifting mechanism (700) further comprises a screw rod (703) rotatably connected to the corresponding strip plate (400), the screw rod (703) and the sleeve (701) are coaxially arranged, the connecting strips (702) are threadedly sleeved on the corresponding screw rod (703), and a rotating motor (704) for driving the screw rod (703) to rotate is fixedly installed at the lower end of the strip plate (400).

6. The stretching device for physical fitness according to claim 5, characterized in that: The adjusting mechanism (500) comprises a pair of rotating shafts (501) rotatably connected to the bottom plate (300), the rotating shafts (501) are both vertically placed, and the symmetry planes of the two rotating shafts (501) coincide with the symmetry planes of the two strips of the shaped plates (400), the rotating shafts (501) are both fixedly sleeved with gears (502), a double-sided rack (503) is provided between the two gears (502), the central axis of the double-sided rack (503) is located in the symmetry plane of the two rotating shafts (501), the gears (502) are both meshed with the double-sided rack (503), an electric push rod (504) coaxially placed with the double-sided rack (503) is fixedly installed on the bottom frame (100), the output end of the electric push rod (504) is fixed to the double-sided rack (503) through a fixing block, and the two strips of the shaped plates (400) are respectively fixed to the two rotating shafts (501).

7. The stretching device for physical fitness according to claim 6, characterized in that: Universal wheels (800) are fixedly mounted on the lower end surfaces of the strip plates (400) away from the rotating shaft (501).

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