Leg exercise machine

Abstract

The leg exercising machine is simple in structure, light, flexible and low in manufacturing cost, an upper fixing rod and a lower fixing rod are arranged in a sitting area of a machine frame, supporting rods are symmetrically arranged between the upper fixing rod and the lower fixing rod, a first rotating rod and a second rotating rod are rotationally arranged on the supporting rods in a sleeved mode respectively, and the first rotating rod and the second rotating rod are connected with the upper fixing rod and the lower fixing rod in a sleeved mode respectively. A first placing rod and a second placing rod which are used for placing feet are arranged on the first rotating rod and the second rotating rod respectively, and pushing devices for allowing the legs to push the placing rods to rotate are arranged on the first placing rod and the second placing rod respectively; a swinging device for driving the first placing rod and the second placing rod to swing is arranged at the position, below the rotating pipe, of the lower fixing rod, a damping device is arranged at the position, behind the back, of the rack, a pull rope is arranged on the rack through a winding device, one end of the pull rope is connected with the damping device, and the other end of the pull rope is connected with the swinging device.

Description

TECHNICAL FIELD

[0001] The utility model relates to body -building machine technical field, especially involves leg exercise machine. BACKGROUND

[0002] With the continuous improvement of people's living standards, the walk aid such as car has been quite popular, and becomes the indispensable tool in people's travel. But at the same time, due to the continuous improvement of diet nutrition quality, people's body is long-term lack of exercise, and body function reduces, and different degrees of obesity problem and cardiovascular abnormality disease caused by fat accumulation are constantly threatening more and more people. And the beauty is the constant pursuit of women, and the desire for slim and slender legs has never stopped. Therefore, many exercise equipment manufacturers have targeted this demand and started the design and manufacture of leg fitness equipment.

[0003] Although the existing leg fitness equipment can meet the demand, the leg fitness equipment is mostly composed of a stretcher and a counterweight, which occupies a large space and has high manufacturing cost, and is not conducive to user use.

[0004] In order to solve this problem, the utility model is produced. UTILITY MODEL CONTENT

[0005] Therefore, in view of the above problems, the utility model provides a leg exercise machine with simple structure, lightness and agility and low manufacturing cost.

[0006] To solve the above technical problems, the utility model takes the following solution: the leg exercise machine comprises a machine frame for a person to sit, the machine frame is provided with an upper fixed rod and a lower fixed rod in the sitting area, a supporting rod is symmetrically arranged between the upper fixed rod and the lower fixed rod, a first rotating rod and a second rotating rod are rotatably arranged on the supporting rod respectively, a first placing rod and a second placing rod for placing feet are arranged on the first rotating rod and the second rotating rod respectively, a pushing device for pushing the placing rod to rotate is arranged on the first placing rod and the second placing rod respectively, a swing device for driving the first placing rod and the second placing rod to swing is arranged below the lower fixed rod, a damping device is arranged at the back of the machine frame, a pull rope is arranged on the machine frame through a winding device, one end of the pull rope is connected with the damping device, and the other end of the pull rope is connected with the swing device.

[0007] Further improvement is that: the swing device comprises a swing disc, the supporting rod in the first rotating rod extends downward and penetrates through the lower fixed rod, the swing disc is rotatably arranged on the supporting rod, a connecting device connected with the pull rope is arranged at one end of the swing disc, a linkage device for driving the swing disc to swing is arranged between the other end of the swing disc and the first placing rod, and a pulling device is further arranged between the first placing rod and the second placing rod.

[0008] Further improvement is that the linkage device comprises a connecting rod, the first placing rod is provided with a connecting plate, one end of the connecting rod is arranged on the connecting plate, and the other end of the connecting rod is arranged on the other end of the swing disc.

[0009] Further improvement is that the pulling device comprises a first pulling block and a second pulling block, the first pulling block is arranged on the first rotating rod, the second pulling block is arranged on the second rotating rod, the first pulling block is hingedly connected with a pulling plate, the other end of the pulling plate is hingedly connected with the second pulling block, and the first pulling block and the second pulling block are arranged in a staggered manner so that the pulling plate is arranged in a diagonal manner.

[0010] Further improvement is that the angle adjusting device is arranged between the swing disc and the connecting rod and is used for adjusting the unfolding angle of the first rotating rod and the second rotating rod.

[0011] Further improvement is that the angle adjusting device comprises a limiting rod, the limiting rod is slidably arranged on the connecting rod, a plurality of limiting holes are uniformly arranged on the connecting rod at the position of the swing disc, the limiting rod is arranged in the limiting hole, and the connecting plate is provided with a sliding device used for driving the limiting rod to slide.

[0012] Further improvement is that the sliding device comprises a lifting rod, a fixed plate is fixedly arranged on the connecting plate, the lifting rod is hingedly connected with the fixed plate, the lifting rod is further hingedly connected with a lifting lug, the other end of the lifting lug is hingedly connected with the limiting rod, and the lifting lug is arranged in an inclined manner.

[0013] Further improvement is that the supporting rod is further provided with an inward retraction device used for inward retraction exercise of the leg.

[0014] Further improvement is that the inward retraction device comprises a swing rod, the swing rod is rotatably sleeved on the supporting rod of the first rotating rod, the swing rod is provided with a guide wheel, the pulling rope passes through the guide wheel, the swing disc is provided with a stop rod, the stop rod can abut against the swing rod when the swing disc swings inward, and the bottom of the swing disc is further provided with a pushing rod which abuts against the swing rod, so as to drive the swing rod to swing.

[0015] Further improvement is that the pushing device comprises two pushing rods, the pushing rods are arranged on the first placing rod and the second placing rod respectively, and the other end of the pushing rod is provided with a pushing plate which abuts against the leg.

[0016] Further improvement is that the pushing rod is provided with a height adjusting device used for adjusting the height of the pushing plate.

[0017] Further improvement is that the height adjusting device comprises an adjusting rod, the adjusting rod is arranged in the pushing rod, the pushing plate is arranged on the adjusting rod, a screw rod is threadedly arranged on the pushing rod, and the screw rod abuts against the adjusting rod.

[0018] Further improvement is that the angle adjusting device is arranged between the pushing rod and the placing rod for adjusting the angle of the pushing rod.

[0019] Further improvement is that the angle adjusting device comprises an adjusting plate, the pushing rod is rotatably arranged on the placing rod, the adjusting plate is arranged on the pushing rod, an arc-shaped adjusting channel is arranged on the adjusting plate, a threaded sleeve is arranged on the placing rod, and a limiting handle is threadedly arranged on the threaded sleeve and passes through the adjusting channel to abut the adjusting plate against the end face of the threaded sleeve.

[0020] Further improvement is that the damping device is a hydraulic cylinder, one end of the hydraulic cylinder is hingedly arranged on the frame, and the extending rod of the hydraulic cylinder is hingedly arranged on the pull rope.

[0021] Further improvement is that the winding device comprises a first over wheel, the first over wheel is arranged on the frame behind the back, a first avoiding channel is arranged on the frame for the pull rope to pass through from the back to the front, a plurality of second over wheels are arranged on the frame below the seat, a second avoiding channel is arranged on the frame in front of the second over wheels for the pull rope to pass through downward, a redirecting wheel is arranged on the frame below the second over wheels, and a leading-in wheel is arranged in front of the redirecting wheel, the pull rope passes through the first over wheel, the second over wheel, the redirecting wheel and the leading-in wheel in sequence.

[0022] Further improvement is that the connecting device comprises a slide way, the slide way is arranged in an arc shape around the swing disc, and the end of the slide way is locked with a bolt, and the pull rope is arranged on the bolt.

[0023] Further improvement is that a positioning rod is arranged on the frame in front of the lower fixed rod, the positioning rod extends downward to be provided with a blocking rod, and the swing rod is abutted against the blocking rod after swinging.

[0024] Further improvement is that a U-shaped rod for hand holding is arranged on the frame at the position of the seat, and the U-shaped rod is located behind the seat.

[0025] Further improvement is that a reinforcing block is arranged between the connecting rod and the first rotating rod.

[0026] Further improvement is that the pushing plate is provided with a foam.

[0027] By adopting the foregoing technical scheme, the body-building device has the following advantages:

[0028] 1. The body-building device has simple structure, light weight, agility and low manufacturing cost. The use of the counterweight is cancelled, thereby reducing the manufacturing cost of the body-building device and the floor space occupied by the body-building device, which is beneficial to the placement of the body-building device in a gym or a family and is particularly suitable for placement at home for exercise, thereby being beneficial to the selection of users.

[0029] 2, the use of hydraulic cylinder instead of counterweight, reduces the use of counterweight, further reduces the use of cost, and the use of hydraulic cylinder adjusts the pressure, more quickly, convenient and safe, beneficial to the user uses.

[0030] 3, by rotating the screw rod, the adjusting rod can be extracted, so that the push plate can be turned over, then the limiting handle is rotated, the angle of the push rod can be adjusted, so that the exerciser can adjust and select the exercise mode according to the length of his legs, which is beneficial to the user to exercise. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is the structure schematic diagram of the leg exercise machine of the embodiment of the utility model.

[0032] Figure 2 is the structure schematic diagram of the leg exercise machine of the embodiment of the utility model.

[0033] Figure 3 is the structure schematic diagram of the leg exercise machine of the embodiment of the utility model.

[0034] Figure 4 is the local structure schematic diagram of the leg exercise machine of the embodiment of the utility model.

[0035] Figure 5 is the structure schematic diagram of the leg exercise machine of the embodiment of the utility model.

[0036] Figure 6 is the structure schematic diagram of the leg exercise machine of the embodiment of the utility model. DETAILED DESCRIPTION

[0037] The utility model is further explained in combination with the drawings and specific embodiments.

[0038] REFERENCE Figures 1-6The utility model discloses a leg exercise machine, including the machine frame 1 of the person who is sitting for body building, the machine frame 1 is located the area of sitting and is equipped with upper fixed link 3 and lower fixed link 4, the symmetry of upper fixed link 3 and lower fixed link 4 is equipped with support rod 2, the support rod 2 is respectively rotationally sleeved with first rotation rod 5 and second rotation rod 21, first rotation rod 5 and second rotation rod 21 are respectively equipped with first placement rod 6 and second placement rod 7 for placing foot, first placement rod 6 and second placement rod 7 are respectively equipped with the push rod 33 for leg department push placement rod rotation, the push rod 33 is respectively arranged on first placement rod 6 and second placement rod 7, the push rod 33 another end is equipped with the push plate 11 with the resistance of leg department, the lower fixed link 4 is located below the rotating pipe and is equipped with the swing device of driving first placement rod 6 and second placement rod 7 swing, the machine frame 1 is located back and is equipped with hydraulic cylinder 17, one end of hydraulic cylinder 17 is hinged and is arranged on the machine frame 1, the extension rod of hydraulic cylinder 17 is hinged and has pull rope, the machine frame 1 is located below hydraulic cylinder 17 and is equipped with first over wheel 13, first over wheel 13 is arranged on the machine frame 1 and is located back, the machine frame 1 is equipped with first avoiding passage 14 for pull rope from behind to forward through, the machine frame 1 is located below seat and is equipped with a plurality of second over wheel 131, the machine frame 1 is located in front of second over wheel 131 and is equipped with second avoiding passage 141 for pull rope downward through, the machine frame 1 is located below second over wheel 131 and is equipped with redirection wheel 133, the redirection wheel 133 front is equipped with import wheel 132, the pull rope is sequentially through first over wheel 13, second over wheel 131, redirection wheel 133 and import wheel 132, the pull rope other end is connected with swing device.

[0039] Specifically, the swing device includes a swing disc 18, the support rod 2 in the first rotation rod 5 extends downward through the lower fixed link 4, the swing disc 18 is rotationally sleeved on the support rod 2, the periphery of one end of the swing disc 18 is provided with a slide 25, the slide 25 is arranged in an arc shape, the end of the slide 25 is locked with a bolt 26, the pull rope is arranged on the bolt 26, a connecting rod 21 is arranged between the other end of the swing disc 18 and the first placement rod 6 for driving the swing disc 18 to swing, a connecting piece is arranged on the first placement rod 6, one end of the connecting rod 21 is arranged on the connecting piece, the other end of the connecting rod 21 is arranged on the other end of the swing disc 18, first and second pulling blocks 8 and 10 are further arranged between the first and second rotation rods 5 and 21, the first pulling block 8 is arranged on the first rotation rod 5, the second pulling block 10 is arranged on the second rotation rod 21, the first pulling block 8 is hinged with a pulling plate 9, the other end of the pulling plate 9 is hinged to the second pulling block 10, the first and second pulling blocks 8 and 10 are arranged staggered so that the pulling plate 9 is arranged obliquely.

[0040] In order to enable the exerciser to control the exercise starting angle according to the leg characteristics of the exerciser, the swing disc 18 and the connecting rod 21 are provided with a limiting rod 20 for controlling the unfolding angle of the first rotating rod 5 and the second rotating rod 21, the limiting rod 20 is slidably arranged on the connecting rod 21, and the swing disc 18 is uniformly provided with a plurality of limiting holes 19 at the position of the connecting rod 21, the limiting rod 20 is arranged in the limiting hole 19, and the connecting plate is provided with a sliding device for driving the limiting rod 20 to slide.

[0041] Specifically, the sliding device comprises a pull rod 22, the connecting plate is fixedly provided with a fixed plate 24, the pull rod 22 is hinged to the fixed plate 24, the pull rod 22 is further hinged with a pull ear 23, the other end of the pull ear 23 is hinged to the limiting rod 20, and the pull ear 23 is arranged obliquely.

[0042] In order to further facilitate the user to exercise and enrich the leg exercise mode of the user, a swing rod 27 is further arranged, the swing rod 27 is rotatably arranged on the supporting rod 2 of the first rotating rod 5, the swing rod 27 is provided with a guide wheel 28, the pull rope passes through the guide wheel 28, the swing disc 18 is provided with a stop rod 30, the stop rod 30 can resist the swing rod 27 when the swing disc 18 swings inward, and the swing disc 18 is further provided with a push rod 31 which abuts against the swing rod 27, so as to push the swing rod 27 to swing.

[0043] In order to enable the user to adjust the exercise according to the length of the legs, an adjusting rod 36 and an adjusting plate 34 are further arranged, the adjusting rod 36 is arranged in the push rod 33, the push plate 11 is arranged on the adjusting rod 36, the push rod 33 is screwedly provided with a screw rod 32, the screw rod 32 abuts against the adjusting rod 36, the push rod 33 is rotatably arranged on the first placing rod 6 or the second placing rod 7, the adjusting plate 34 is arranged on the push rod 33, the adjusting plate 34 is provided with an arc-shaped adjusting channel 35, the first placing rod 6 or the second placing rod 7 is provided with a screw sleeve 37, the screw sleeve 37 is screwedly provided with a limiting handle 38, and the limiting handle 38 passes through the adjusting channel 35 to abut the adjusting plate 34 against the end face of the screw sleeve 37.

[0044] When the user wants to exercise, the adjusting rod 36 can be pulled out by rotating the screw rod 32, so that the push plate 11 can be raised, and then the limiting handle is rotated to rotate the angle of the push rod 33, so that the exerciser can adjust according to the length of the legs, which is beneficial to the user to exercise.

[0045] In order to limit the swing rod 27, so as to limit the opening and closing degree of the first placing rod 6 and the second placing rod 7, the frame 1 is provided with a positioning rod 29 in front of the lower fixed rod 4, the positioning rod 29 extends downward and is provided with a blocking rod 30, the swing rod 27 is resisted by the blocking rod 30 after swinging.

[0046] In order to facilitate the user to exercise, the frame 1 is provided with a U-shaped rod 15 for hand holding at the seat position, and the U-shaped rod 15 is located behind the seat.

[0047] In order to improve the connection strength of the first placing rod 6 and the connecting rod 21, the connecting rod 21 is provided with a reinforcing block 16 between the first rotating rod.

[0048] In order to improve the comfort of the user pushing the push plate 11, the push plate 11 is provided with a foam 12.

[0049] Working principle:

[0050] When the user wants to exercise, sit on the cushion of the frame 1, then adjust the position of the push plate 11 by rotating the screw rod 32, then adjust the angle of the push plate 11 by rotating the limiting handle 38, so as to match the leg of the exerciser. Then pull the pull rod 22, the pull rod 22 drives the limiting rod 20 to slide upward, so as to leave the limiting hole 19, then swing the first placing rod 6, the first placing rod 6 drives the second placing rod 7 to swing, then the limiting rod 20 moves to the appropriate position of the exerciser, and the user can start exercising when the pull rod 22 is released, so that the limiting rod 20 slides into the limiting hole 19. When the user pushes the push plate 11 with both legs, the push plate 11 pushes the push rod 33, the push rod 33 pushes the first placing rod 6 and the second placing rod 7, the first placing rod 6 rotates, drives the connecting rod 21 to rotate, the connecting rod 21 drives the swing disc 18 to rotate, the swing disc 18 rotates and drives the pull rope to pull, the pull rope pulls the hydraulic rod of the hydraulic cylinder 17 to extend, so as to achieve the purpose of leg exercise, at this time the swing rod 27 is resisted by the blocking rod 30 and does not swing. When the user wants to do leg expansion exercise, that is, to clamp inwardly, loosen the screw rod 32, then rotate the push plate 11, so that the foam 12 is located in the direction of the leg, then lock the screw rod 32. Then the user clamps the legs between the push plate 11, when the user clamps inwardly, drives the swing disc 18 to swing, at the same time drives the swing rod 27 to swing inwardly, so as to stretch the pull rod and achieve the purpose of leg expansion exercise.

[0051] The basic principle and main features of the utility model and its advantages are shown and described above, and the skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions are only to illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A leg exercise machine comprising a frame for a user to sit on, characterised in that: The rack is provided with upper and lower fixed rods in the sitting area, and support rods are symmetrically arranged between the upper and lower fixed rods, first and second rotating rods are rotatably arranged on the support rods, respectively, first and second placing rods for placing feet are arranged on the first and second rotating rods, respectively, pushing devices for pushing the legs to rotate the placing rods are arranged on the first and second placing rods, respectively, the lower fixed rod is provided below the rotating tube with a swinging device for swinging the first and second placing rods, the rack is provided behind the back with a damping device, the rack is provided with a pull rope through a winding device, one end of the pull rope is connected with the damping device, and the other end of the pull rope is connected with the swinging device.

2. The leg exerciser as set forth in claim 1, wherein: The swinging device comprises a swinging disc, the support rod in the first rotating rod extends downward through the lower fixed rod, the swinging disc is rotatably arranged on the support rod, one end of the swinging disc is provided with a connecting device connected with the pull rope, and the other end of the swinging disc is provided with a linkage device between the first placing rod for swinging the swinging disc, and the first and second placing rods are further provided with a pulling device.

3. The leg exerciser as set forth in claim 2, wherein: The linkage device comprises a connecting rod, the first placing rod is provided with a connecting piece, one end of the connecting rod is arranged on the connecting piece, and the other end of the connecting rod is arranged on the other end of the swinging disc.

4. The leg exerciser as set forth in claim 2, wherein: The pulling device comprises first and second pulling blocks, the first pulling block is arranged on the first rotating rod, the second pulling block is arranged on the second rotating rod, the first pulling block is hingedly connected with a pulling plate, the other end of the pulling plate is hingedly connected with the second pulling block, and the first and second pulling blocks are arranged in a staggered manner so that the pulling plate is arranged obliquely.

5. The leg exerciser as set forth in claim 3, wherein: The swinging disc and the connecting rod are provided with an angle adjusting device for adjusting the opening angle of the first and second rotating rods.

6. The leg exerciser as set forth in claim 5, wherein: The angle adjusting device comprises a limiting rod, the limiting rod is slidably arranged on the connecting rod, the swinging disc is provided with a plurality of limiting holes at positions on the connecting rod, the limiting rod is arranged in the limiting hole, and the connecting plate is provided with a sliding device for sliding the limiting rod.

7. The leg exerciser as set forth in claim 6, wherein: The sliding device comprises a lifting rod, the connecting piece is fixedly provided with a fixed plate, the lifting rod is hingedly connected with the fixed plate, the lifting rod is further hingedly connected with a lifting lug, the other end of the lifting lug is hingedly connected with the limiting rod, and the lifting lug is arranged obliquely.

8. The leg exerciser according to any one of claims 2 to 7, characterized in that: The support rod is further provided with an inner expansion device for inward tight exercise of the legs.

9. The leg exerciser as set forth in claim 8, wherein: The inner expansion device comprises a swinging rod, the swinging rod is rotatably arranged on the support rod of the first rotating rod, the swinging rod is provided with a guide wheel, the pull rope passes through the guide wheel, the swinging disc is provided with a resisting rod, the resisting rod can resist the swinging rod when the swinging disc swings inward, and the bottom of the swinging disc is further provided with a pushing rod resisting the swinging rod, so as to push the swinging rod to swing.

10. The leg exerciser as set forth in claim 1, wherein: The pushing device comprises two pushing rods, the pushing rods are arranged on the first and second placing rods, respectively, and the other end of the pushing rod is provided with a pushing plate resisting the legs.

11. The leg exerciser as set forth in claim 10, wherein: The pushing rod is provided with a height adjusting device for adjusting the height of the pushing plate.

12. The leg exerciser of claim 11, wherein: The height adjusting device comprises an adjusting rod, the adjusting rod is arranged in the push rod, the push plate is arranged on the adjusting rod, the push rod is screwed with a screw rod, and the screw rod is in abutment with the adjusting rod.

13. The leg exerciser as set forth in claim 10, wherein: The push rod and the placing rod are provided with an angle adjusting device for adjusting the angle of the push rod.

14. The leg exerciser as set forth in claim 13, wherein: The angle adjusting device comprises an adjusting plate, the push rod is arranged on the placing rod, the adjusting plate is arranged on the push rod, the adjusting plate is provided with an arc-shaped adjusting channel, the placing rod is provided with a screw sleeve, the screw sleeve is screwed with a limiting handle, and the limiting handle passes through the adjusting channel and abuts the adjusting plate on the end face of the screw sleeve.

15. The leg exerciser as set forth in claim 1, wherein: The damping device is a hydraulic cylinder, one end of the hydraulic cylinder is hingedly arranged on the frame, and the extending rod of the hydraulic cylinder is hingedly arranged on the pull rope.

16. The leg exerciser as set forth in claim 1, wherein: The winding device comprises a first over wheel, the first over wheel is arranged on the frame behind the back, the frame is provided with a first avoiding channel for the pull rope to pass from the back to the front, the frame is provided with a plurality of second over wheels below the seat, the frame is provided with a second avoiding channel in front of the second over wheels for the pull rope to pass downward, the frame is provided with a redirection wheel below the second over wheels, the redirection wheel is provided with an import wheel in front, and the pull rope passes through the first over wheel, the second over wheel, the redirection wheel and the import wheel in sequence.

17. The leg exerciser as set forth in claim 2, wherein: The connecting device comprises a slide, the slide is arranged in an arc shape around the swing disc, the end of the slide is locked with a bolt, and the pull rope is arranged on the bolt.

18. The leg exerciser as set forth in claim 9, wherein: The frame is provided with a positioning rod in front of the lower fixed rod, the positioning rod is provided with a blocking rod extending downward, and the swing rod is in abutment with the blocking rod after swinging.

19. The leg exerciser as set forth in claim 1, wherein: The frame is provided with a U-shaped rod for hand holding at the position of the seat, and the U-shaped rod is located behind the seat.

20. The leg exerciser as set forth in claim 3, wherein: The connecting rod and the first rotating part are provided with a reinforcing block.

21. The leg exerciser as set forth in claim 10, wherein: The push plate is provided with foam.

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