Lower limb exercise apparatus using thrust

Abstract

The present invention relates to a lower limb exercise apparatus using leg thrust, and more particularly, to a lower limb exercise apparatus using thrust, which can exercise by pushing away a pedal plate when sitting on a chair that is movable in a state inclined to the ground, and which is provided with a weight coupling rod on a movable seat on which the chair is provided, according to the present invention, the exercise intensity can be adjusted by adjusting the overall weight of a lifting operation part mounted on a moving seat, and a lifting guide rod, which is a moving path of the moving seat, is adjusted within a predetermined range by a rotation angle adjusting part provided on one side of an inclined frame, thereby enabling different exercises to be performed on the used muscle part.

Description

Technical Field

[0001] The present invention relates to a lower limb exercise apparatus that utilizes leg thrust. More specifically, it relates to a lower limb exercise apparatus that utilizes thrust and can be exercised by pushing a footrest while sitting on a chair that is movable in a state inclined to the ground. A weight coupling rod is provided on the moving seat of the chair, and the exercise intensity can be adjusted by adjusting the overall weight of the lifting operation unit mounted on the moving seat. Moreover, by providing a rotation angle adjustment unit on one side of the inclined frame, the lifting guide rod, which is the moving path of the moving seat, can be adjusted within a specified range, thereby enabling different muscle parts to be exercised. Background Art

[0002] Generally, exercises for the lower limbs include squats. Squats are the most basic exercise for the lower limbs by repeatedly sitting down and standing up until the thighs are level with the knees. However, such squats may put pressure on the knees and there is an imbalance in the exercise of the gluteus maximus, gluteus medius, and gluteus minimus that make up the gluteal muscles.

[0003] The present invention relates to a lower limb exercise apparatus that exercises the lower limbs by repeatedly pushing up and down a footrest while sitting on a chair. Among related conventional lower limb exercise apparatuses, there is a lower limb muscle strengthening exercise apparatus mentioned in Patent No. 10-1044094.

[0004] The patent proposes a lower limb muscle strengthening exercise apparatus, including: (a) a bottom 1, which includes an "H"-shaped support frame 1a, a pair of handles 1b coupled to the ends of the support frame 1a, and a pair of first rings 1c formed on the upper part of the support frame 1a; (b) a connection part 2, which includes a pair of brackets 2a in the shape of coupled to the upper part of the support frame 1a and a pair of rollers 2b coupled to the inside of each of the pair of brackets 2a; (c) a rotation part 3, inserted and coupled to the inside of the bracket 2a and including a pair of second rings 3b; and (d) a spring member 4, which includes a pair of springs 4a connecting the two ends to the first ring 1c and the second ring 3b and a housing 4b wrapping the springs 4a. This apparatus does not move by extending and retracting the legs but moves in the walking direction, so it is difficult to expect the same exercise effect as the squat movement.

[0005] Another prior art related to lower limb exercise is the safe squat exercise apparatus proposed in Patent No. 10-1875338.

[0006] The patent proposes a safe squat exercise apparatus for protecting the knee joint. The squat exercise apparatus includes: a ground support frame having foot pedals for placing the user's feet, supported on the ground; vertical members standing vertically from the ground support frame; a buttock placement member for placing the user's buttocks when the user performs a squat exercise. The safe squat exercise apparatus for protecting the knee joint is characterized in that it includes: a pair of left and right ankle fixing frames provided on the upper part of the foot pedals to support the user's insteps; vertical members standing vertically from the ground support frame; a pair of left and right popliteal fossa placement members provided at the upper ends of the vertical members for placing the user's popliteal fossa. When the user performs a squat exercise, in order to apply an elastic force to the thighs, an elastic member is provided between the popliteal fossa placement member and the buttock placement member. After the user places the feet on the foot pedals and fixes the ankles by putting them into the ankle fixing frames, places the buttocks on the buttock placement member, and places the popliteal fossa of the user on the popliteal fossa placement member, then lowers the buttocks as if sitting on a chair. When lowering the buttocks until the knees and thighs form a right angle, the buttock placement member moves from the buttocks to the thighs and is placed on the thighs. Then, repeatedly perform the action of slowly standing up while applying force to the thighs, so that a squat exercise without a handle can be achieved. However, through the multiple protrusions formed on the buttock placement member, it is possible to apply stimulation to the buttocks and thighs of the user during the exercise. Since the method of applying force while sitting down is adopted, the exercise intensity of the thighs is reduced, and as the exercise time passes, it may cause pressure on the waist.

[0007] Another prior art related to an apparatus for exercising in a state of pushing the foot pedals while sitting on a chair is the lower limb exercise apparatus disclosed in Patent Publication No. 10-2022-0000325.

[0008] The patent proposes a lower limb exercise apparatus, which is characterized in that it includes: a guide rod 100 inclined downward forward; a moving body 200 moving along the guide rod 100, relying on the user's buttocks and back, etc.; a foot pedal 300 provided in front of the guide rod 100 and formed inclined upward forward to support the user's feet. The moving body 200 is subjected to an elastic force acting upward rearward by an elastic member 400 arranged side by side with the guide rod 100. Since the elastic force of the elastic member 400 can adjust the amount of exercise, in order to perform a further high-intensity exercise, a relatively heavy weight is required. However, a large amount of weight may cause the user's feet to separate from the foot pedals and when they come into contact again, it will generate a large impact on the user's ankles, increasing the risk of injury.

[0009] Prior art documents

[0010] Patent documents

[0011] (Patent Document 0001) Korean Patent Gazette for Granted Patent No. 10-1044094 (Announced on June 23, 2011)

[0012] (Patent Document 0002) Korean Patent Gazette for Granted Patent No. 10-1875338 (Announced on July 5, 2018)

[0013] (Patent Document 0003) Korean Patent Gazette for Published Patent No. 10-2022-0000325 (Published on January 3, 2022) Summary of the Invention

[0014] Technical Problem to be Solved by the Invention

[0015] Therefore, the object of the present invention is to provide a lower limb exercise apparatus using thrust. When sitting on a chair that can move in a state inclined to the ground, the user moves by pushing the footrest. A weight coupling rod is provided on the moving seat of the chair, and the exercise intensity can be adjusted by adjusting the overall weight of the lifting operation unit mounted on the moving seat. And by the rotation angle adjustment unit provided on one side of the inclined frame, the lifting guide rod, which is the moving path of the moving seat, can be adjusted within a specified range, so that different muscle parts used can be exercised.

[0016] Moreover, another object of the present invention is to provide a lower limb exercise apparatus using thrust. The inclined frame can be adjusted in terms of the rotation angle around the rotation hinge by the rotation angle adjustment unit provided on one side of the base frame. The rotation angle adjustment unit adjusts the rotation angle through the relative movement of the hydraulic oil of the hydraulic pump and the hydraulic cylinder, and the operation of the hydraulic pump can be manually adjusted. Therefore, no additional power source such as power is required.

[0017] Furthermore, another object of the present invention is to provide a lower limb exercise apparatus using thrust. The chair includes: a buttock placement part for placing the user's buttocks, a backrest for leaning against the user's back, and a neck support for supporting the user's neck. The backrest can be rotated through the backrest rotation hinge, and the user can exercise in a sitting state or lie down on the chair, so that different exercise methods can be adopted according to the user's preference.

[0018] Also, another object of the present invention is to provide a lower limb exercise apparatus using thrust. The footrest can move along the guide frame fixedly provided on the placement frame, and the distance between the footrest and the chair can be adjusted, so that exercise can be carried out according to the body types of various users.

[0019] Technical Solution for Solving the Problem

[0020] The lower limb exercise apparatus using thrust of the present invention utilizes the thrust of the legs and is characterized in that it includes: a base frame disposed on the ground, an inclined frame fixedly arranged on the base frame so as to be rotatable within a specified range through a rotary hinge, a lifting guide rod fixedly arranged on the inclined frame, a position adjusting guide rod fixedly arranged on the inclined frame, a lifting operation part moving along the lifting guide rod, a placement frame arranged on one side of the base frame, a footrest fixedly arranged on one side of the placement frame, a chair provided on the lifting operation part, and by means of the external force applied by the user to the footrest, the entire lifting operation part provided with the chair rises along the lifting guide rod, and when the external force decreases, the entire lifting operation part descends by means of the self-weight of the lifting operation part and the user.

[0021] Effects of the Invention

[0022] The lower limb exercise apparatus using thrust of the present invention can perform exercises by pushing the footrest when sitting on a chair that can move in a state inclined to the ground. A heavy object coupling rod is provided on the movable seat where the chair is arranged to adjust the overall weight of the lifting operation part carried on the movable seat, thereby adjusting the exercise intensity. The lifting guide rod, which is the moving path of the movable seat, can be adjusted within a specified range through a rotation angle adjusting part, so that there is a remarkable effect of being able to exercise different muscle parts. And it has the following remarkable effects: the inclined frame can adjust the rotation angle around the rotary hinge through a rotation angle adjusting part arranged on one side of the base frame. The rotation angle adjusting part adjusts the rotation angle through the relative movement of the hydraulic oil of a hydraulic pump and a hydraulic cylinder, and the operation of the hydraulic pump can be manually adjusted. Therefore, no additional power source such as power is required. The chair includes: a buttock placement part for placing the user's buttocks, a backrest for leaning against the user's back, and a neck support for supporting the user's neck. The backrest can be rotated through a backrest rotary hinge, and the user can exercise in a sitting state or a lying state on the chair. Thus, different exercise methods can be adopted according to the user's preference. The footrest can move along a guide frame fixedly arranged on the placement frame, so that the distance from the chair can be adjusted, and exercises can be performed according to the body types of various users. Description of the Drawings

[0023] Figure 1 It is a three-dimensional view of the overall structure of the present invention.

[0024] Figure 2 It is a three-dimensional view of the overall structure of the present invention seen from another angle.

[0025] Figure 3 It is a side structure view of the present invention.

[0026] Figure 4 It is a plan structure view of the present invention.

[0027] Figure 5 It is a partial structural diagram of the present invention.

[0028] Explanation of reference numerals

[0029] 1. Base frame 2. Inclined frame

[0030] 3. Lifting guide rod 4. Position adjustment guide rod 4a. Fixed groove

[0031] 5. Rotating hinge 6. Heavy object storage rod

[0032] 7. Belt hanger 8. Belt hanger

[0033] 10. Lifting operation part

[0034] 11. Movable seat 12. Chair

[0035] 12a. Butt placement part 12b. Backrest 12c. Neck guard

[0036] 13. Guide pile 14. Guide bracket

[0037] 15. Position fixing pin 16. Heavy object coupling rod

[0038] 17. Backrest rotating hinge 18. First handle

[0039] 19. Second handle 20. Rotation stop rod

[0040] 21. Limiter 22. Shoulder support frame

[0041] 30. Rotation angle adjustment part

[0042] 31. Hydraulic pump 32. Hydraulic cylinder

[0043] 33. Piston rod 34. Pump rod

[0044] 35. Pump operation pipe 36. Operation rod

[0045] 37. Storage pipe 38. Valve

[0046] 40. Placement frame 41. Footrest

[0047] 42. Guide frame 43. Position fixing frame 43a. Through hole

[0048] 44. Guide frame 45. Rotation position fixing pin

[0049] 46. Movable fixing pin Detailed implementation manner

[0050] The present invention relates to a lower limb exercise apparatus that utilizes leg thrust. More specifically, it relates to a lower limb exercise apparatus that utilizes thrust and can perform exercise by pushing a footrest while sitting on a chair that is movable in a state inclined to the ground. A weight coupling rod is provided on the movable seat on which the chair is provided, and the exercise intensity can be adjusted by adjusting the overall weight of the lifting operation unit mounted on the movable seat. Moreover, by means of a rotation angle adjustment unit provided on one side of the inclined frame, the lifting guide rod that is the movement path of the movable seat can be adjusted within a specified range, so that different muscle parts used can be exercised.

[0051] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0052] Figure 1 is a perspective view of the overall structure of the present invention, Figure 2 is a perspective view of the overall structure of the present invention seen from another angle, Figure 3 is a side view structure of the present invention, Figure 4 is a plan view structure of the present invention. The lower limb exercise apparatus that utilizes thrust of the present invention utilizes leg thrust and is characterized in that it includes: a base frame 1 provided on the ground, an inclined frame 2 fixedly provided on the base frame 1 so as to be rotatable within a specified range through a rotary hinge 5, a lifting guide rod 3 fixedly provided on the inclined frame 2, a position adjustment guide rod 4 fixedly provided on the inclined frame 2, a lifting operation unit 10 that moves along the lifting guide rod 3, a placement frame 40 provided on one side of the base frame 1, a footrest 41 fixedly provided on one side of the placement frame 40, a chair 12 provided on the lifting operation unit 10, and by means of the external force applied by the user to the footrest 41, the entire lifting operation unit 10 on which the chair 12 is provided rises along the lifting guide rod 3. When the external force decreases, the entire lifting operation unit 10 descends by means of the self-weight of the lifting operation unit 10 and the user.

[0053] First, the base frame 1 is a basic frame provided on the ground, the inclined frame 2 is fixedly provided on the base frame 1 through a rotary hinge 5 and is a frame that can be inclined to rotate within a specified angle range with the rotary hinge 5 as the center, the lifting guide rod 3 is a cylindrical frame fixedly provided on the inclined frame 2 and used to guide the movement path of the movable seat 11, and the position adjustment guide rod 4 is provided based on Figure 4A frame disposed at the center of the inclined frames 2 on the left and right sides. The lifting operation part 10 is structured to lift and lower along the lifting guide rod 3 in a state inclined to the ground. The placing frame 40 is a frame disposed on one side of the base frame 1, and can be configured integrally with the base frame 1 or separately. The footrest 41 is fixedly disposed on one side of the placing frame 40. A chair 12 is disposed on the lifting operation part 10. When the user sits on the chair 12, the user applies an external force to the footrest 41 with the legs, causing the entire lifting operation part 10 to lift and move.

[0054] Therefore, when the user extends the foot and applies a force to the footrest 41 while sitting on the chair 12, the lifting operation part 10 rises along the lifting guide rod 3. Then, when the force applied to the footrest 41 is reduced, the entire lifting operation part 10 descends along the lifting guide rod 3 due to the load of the lifting operation part 10 itself and the load of the user. By repeating such actions, the user can perform lower limb exercises.

[0055] Moreover, the inclined frame 2 can adjust the rotation angle around the rotation hinge through the rotation angle adjustment part 30 disposed on one side of the base frame 1. The rotation angle adjustment part 30 includes: a hydraulic pump 31 with hydraulic oil built therein; a hydraulic cylinder 32 fixedly disposed on one side of the position adjustment guide rod 4, with hydraulic oil built therein, and the piston rod 33 extends or compresses through the operation of the hydraulic pump 31; a pump rod 34 for delivering the hydraulic oil of the hydraulic pump 31 to the hydraulic cylinder 32; a pump operation pipe 35 fixedly coupled to one end of the pump rod 34; and an operation rod 36 that can be inserted into the pump operation pipe 35. After inserting the operation rod 36 into the pump operation pipe 35, if the pump rod 34 is pumped, the hydraulic oil in the hydraulic pump 31 moves to the hydraulic cylinder 32, extending the piston rod 33 of the hydraulic cylinder 32 outside the hydraulic cylinder 32, causing the positions of the position adjustment guide rod 4, the inclined frame 2, and the lifting guide rod 3 to rotate in a direction away from the base frame 1.

[0056] That is, the inclined frame 2 can rotate within a specified range around the rotation hinge 5 through the rotation angle adjustment part 30. The rotation angle adjustment of this inclined frame 2 can adjust the intensity of the support force required when the lifting operation part 10 is pushed up or down, and ultimately adjust the exercise intensity. The hydraulic pump 31 is a pump that can discharge the hydraulic oil built therein to the outside through the operation of the user. The hydraulic cylinder 32 is fixedly disposed on one side of the position adjustment guide rod 4. If the hydraulic oil inside the hydraulic pump 31 flows into the hydraulic cylinder 32, the piston rod 33 extends, causing the position adjustment guide rod 4 to rotate upward. The pump rod 34 is a rod that performs mechanical movement to deliver the hydraulic oil inside the hydraulic pump 31 to the hydraulic cylinder 32. The pump operation pipe 35 is a pipe fixedly disposed at one end of the pump rod 34. The operation rod 36 can be attached to and detached from the pump operation pipe 35, and it is a rod for operating the pump rod 34.

[0057] Therefore, taking Figure 1 as a reference, if you want to increase the exercise intensity by rotating the position adjustment guide rod 4 counterclockwise, you need to take out the operating rod 36 from the storage tube 37, insert it into the pump operating tube 35, and then operate the operating rod 36 like a conventional manual well pump. The hydraulic oil inside the hydraulic pump 31 is moved to the hydraulic cylinder 32 through the pump rod 34, and the piston rod 33 extends, so that the position adjustment guide rod 4 rotates counterclockwise, and the exercise intensity can be increased.

[0058] On the contrary, if you want to reduce the exercise intensity, you should check the structure and action of rotating the position adjustment guide rod 4 clockwise with Figure 1 as a reference. A valve 38 for moving the hydraulic oil inside the hydraulic pump 31 and the hydraulic cylinder 32 is provided on one side of the hydraulic pump 31. If the valve 38 is opened, the hydraulic oil inside the hydraulic cylinder 32 moves to the hydraulic pump 31 by virtue of the load of the lifting operation part 10 and the inclined frame 2, and the piston rod 33 of the hydraulic cylinder 32 is compressed along the direction of entering the inside of the hydraulic cylinder 32, so that the positions of the position adjustment guide rod 4, the inclined frame 2 and the lifting guide rod 3 rotate towards the direction close to the base frame 1.

[0059] That is, the valve 38 is a structure provided on one side of the hydraulic pump 31 and can open and close the flow of hydraulic oil between the hydraulic pump 31 and the hydraulic cylinder 32. When the piston rod 33 of the hydraulic cylinder 32 is in the extended state, if the valve 38 is opened, the hydraulic oil inside the hydraulic cylinder 32 flows back to the hydraulic pump 31 by virtue of the load of the lifting operation part 10 represented by the inclined frame 2, thereby compressing the piston rod 33 of the hydraulic cylinder 32, and Figure 1 as a reference, the position adjustment guide rod 4 rotates clockwise, and finally the exercise intensity can be reduced.

[0060] Moreover, the lifting operation part 10 includes: a moving seat 11 that moves along the lifting guide rod 3, and a chair 12 that is fixedly arranged on the upper part of the moving seat 11 for the user to sit on. The chair 12 can be adjusted to a fixed position along the position adjustment guide rod 4 through the moving seat position adjustment part fixedly arranged on the position adjustment guide rod 4. The moving seat position adjustment part includes: a guide pile 13 that is fixedly arranged on the position adjustment guide rod 4 and forms a plurality of through holes, a guide bracket 14 that is arranged in a form surrounding the outside of the guide pile 13 and forms a through hole, a position fixing pin 15 that is fixedly arranged on the guide bracket 14, and a spring that applies a force to pull the position fixing pin 15 towards the guide bracket 14. If an external force is applied to pull the position fixing pin 15 out of the through hole of the guide pile 13, the position of the guide bracket 14 can be adjusted along the length direction of the guide pile 13, and the position of the moving seat 11 can be adjusted along the length direction of the position adjustment guide rod 4, thereby being able to adjust the distance between the chair 12 and the footrest 41.

[0061] That is, the movable seat 11 is a seat (saddle) that moves up and down along the lifting guide rod 3. A chair 12 for the user to sit on is provided on the movable seat 11. The movable seat position adjusting part is fixedly arranged on one side of the position adjusting guide rod 4 and can adjust the position of the movable seat 11 along the length direction of the position adjusting guide rod 4. The guide pile 13 is a square pipe fixedly arranged on the position adjusting guide rod 4 and having a plurality of through holes formed therein. The guide bracket 14 is arranged in a form surrounding a part of the outer peripheral surface of the guide pile 13 and can move along the length direction of the guide pile 13. The position fixing pin 15 is fixedly arranged on the guide bracket 14 and is a fixing pin that can be partially inserted into the through hole of the guide pile 13. The spring (not shown) is arranged between the position fixing pin 15 and the guide bracket 14 and applies a pulling force to pull the position fixing pin 15 towards the center of the guide pile 13 through its own elasticity.

[0062] Therefore, in order to adjust the position of the chair 12, a force is applied in the direction of pulling out the position fixing pin 15 from the through hole of the guide pile 13, that is, in the direction of compressing the spring. After pulling out from the through hole of the guide pile 13, the guide bracket 14 is moved along the length direction of the guide pile 13. Then, the force compressing the spring is removed, and the position fixing pin 15 enters a specific through hole of the guide pile 13, so that the position of the chair, that is, the position of the movable seat 11, can be fixed in the adjusted state. Finally, by changing the relative distance between the chair 12 and the footrest 41, it can be aligned with the user's body.

[0063] Moreover, the chair 12 includes: a buttock placement part 12a for placing the user's buttocks, a backrest 12b for leaning against the user's back, and a neck support 12c for supporting the user's neck. The backrest 12b can be rotated through a backrest rotation hinge 17, and the user can exercise in a state of sitting on the chair 12 or in a lying state.

[0064] That is, the buttock placement part 12a of the chair 12 is the part for placing the buttocks as the user's hips, the backrest 12b is the part for leaning against the user's back, the neck support 12c is the part for supporting the user's neck, and the backrest 12b can be rotated within a specified range through the backrest rotation hinge 17. The user can choose to exercise in a state of sitting on the chair 12 or in a lying state.

[0065] When the user exercises in a lying state, the user's shoulders contact the shoulder support frame 22, thereby reducing the impact applied to the user's shoulders.

[0066] Moreover, two pairs of handles are provided on both sides of the chair 12. The two pairs of handles are composed of a pair of first handles 18 provided on both sides of the buttock placement part 12a and a pair of second handles 19 provided on both sides of the backrest 12b. When the user is sitting on the chair 12, the user makes movements while holding the first handles 18. When the user is lying on the chair 12, the user makes movements while holding the second handles 19.

[0067] That is, two pairs of handles, namely the first handles 18 and the second handles 19, are respectively provided on both sides of the chair 12. When the user makes movements while sitting on the chair, the user holds the first handles 18 and applies force to the footrest 41 to make movements. When the user makes movements while lying on the chair 12, the user holds the second handles 19 and applies force to the footrest 41 to make movements. Therefore, stable movements can be performed in more various postures.

[0068] Moreover, the footrest 41 can move along a guide frame 42 fixedly provided on the placement frame 40, can adjust the distance from the chair 12, and can adjust the rotation position through an angle adjustment part provided on one side of the placement frame 40. The angle adjustment part includes: an arc-shaped position fixing frame 43, fixedly provided on the footrest 41 and forming a plurality of through holes 43a; a guide frame 44, having the same radius as the position fixing frame 43, provided on one side of the position fixing frame 43, guiding the rotation path of the position fixing frame 43 and forming a long hole; and a rotation position fixing pin 45, inserted into the through holes 43a to fix the rotation position of the position fixing frame 43.

[0069] That is, the footrest 41 can move along the length direction of the guide frame 42 fixedly provided on the placement frame 40 to adjust the distance from the chair 12. The angle adjustment part can adjust the rotation angle of the footrest 41. The position fixing frame 43 is formed of an arc with a specific radius. The guide frame 44 is a frame that guides the rotation path of the position fixing frame 43. The position fixing frame 43 can rotate along the long hole formed in the guide frame 44 in a specific path, and the rotation angle of the footrest 41 can be adjusted.

[0070] At this time, the rotation position fixing pin 45 is inserted into a specific through hole 43a of the position fixing frame 43 to fix the footrest in a state of rotating at a specific position.

[0071] The unillustrated reference numerals are the heavy object storage rod 6, the heavy object coupling rod 16, the belt hanger 7, another belt hanger 8, the rotation stop rod 20, and the stopper 21. The heavy object storage rod 6 is a structure for storing disc-shaped heavy objects and has nothing to do with the exercise intensity. The heavy object coupling rod 16 is a structure for fastening the heavy object and adjusting the overall weight of the lifting operation unit 10. The belt hanger 7 is a belt hanger fixedly provided on the inclined frame 2. The belt hanger 8 is a belt hanger fixedly provided on the movable seat 11. It is a structure in which a belt is hung between the two belt hangers, which can reduce the force required for the user to push up the lifting operation unit 10. The rotation stop rod 20 and the stopper 21 are structures for stopping the movement of the lifting operation unit 10. The stopper 21 is provided on one side of the rotation stop rod 20. After the rotation stop rod 20 is rotated in a specific direction and then moves, when the movement stops, the rotation stop rod 20 is rotated in the direction opposite to the specific direction, so that the stopper 21 enters the fixing groove 4a of the position adjustment guide rod 4 to keep the lifting operation unit 10 in a non-moving state.

[0072] Finally, the lower limb exercise apparatus using thrust can be exercised by pushing the footrest while sitting on a chair that can move in a state inclined to the ground. A heavy object coupling rod is provided on the movable seat of the chair to adjust the overall weight of the lifting operation unit mounted on the movable seat, so that the exercise intensity can be adjusted. The lifting guide rod, which is the movement path of the movable seat, can be adjusted within a specified range by the rotation angle adjustment unit, so that there is a remarkable effect of being able to exercise different muscle parts. And it has the following remarkable effects: The inclined frame can adjust the rotation angle around the rotation hinge through the rotation angle adjustment unit provided on one side of the base frame. The rotation angle adjustment unit adjusts the rotation angle through the relative movement of the hydraulic oil of the hydraulic pump and the hydraulic cylinder, and the operation of the hydraulic pump can be manually adjusted. Therefore, no additional power source such as power is required. The chair includes: a buttock placement part for placing the user's buttocks, a backrest for leaning against the user's back, a neck support for supporting the user's neck. The backrest can be rotated through the backrest rotation hinge, and the user can exercise in a sitting state or lie down on the chair, so that different exercise methods can be adopted according to the user's preference. The footrest can move along the guide frame fixedly provided on the placement frame, so that the distance from the chair can be adjusted, and exercise can be carried out according to the body types of various users.

Claims

1. A lower limb exercise device utilizing thrust, which utilizes leg thrust, characterized in that: include: A base frame (1) is arranged on the ground. The tilting frame (2) is fixedly mounted on the base frame (1) so as to be able to rotate within a specified range via a rotating hinge (5). A lifting guide rod (3) is fixedly arranged on the tilting frame (2). A position adjustment guide rod (4) is fixedly arranged on the tilting frame (2). The lifting operation part (10) moves along the lifting guide rod (3). A placement frame (40) is arranged on one side of the base frame (1), A foot pedal (41) is fixedly arranged on one side of the placement frame (40). A chair (12) is arranged on the lifting operation part (10), and the entire lifting operation part (10) on which the chair (12) is arranged rises along the lifting guide rod (3) by means of an external force applied by a user to a foot pedal (41); when the external force decreases, the entire lifting operation part (10) descends by means of the lifting operation part (10) and the user's own weight.

2. The lower limb exercise equipment utilizing thrust according to claim 1, characterized in that: The tilting frame (2) can adjust the rotation angle with the rotating hinge (5) as the center through a rotation angle adjustment part (30) arranged on one side of the base frame (1). The rotation angle adjustment unit (30) comprises: Hydraulic pump (31), with built-in hydraulic oil, The hydraulic cylinder (32) is fixedly arranged on one side of the position adjustment guide rod (4) and contains hydraulic oil. The hydraulic cylinder (32) extends or compresses the piston rod (33) through the operation of the hydraulic pump (31). A pump rod (34) is used to deliver the hydraulic oil of the hydraulic pump (31) to the hydraulic cylinder (32). A pump operating tube (35) is fixedly coupled to one end of the pump rod (34). An operating rod (36) can be inserted into the pump operating tube (35). After the operating rod (36) is inserted into the pump operating pipe (35), if the pump rod (34) is pumped, the hydraulic oil in the hydraulic pump (31) moves to the hydraulic cylinder (32), and the piston rod (33) of the hydraulic cylinder (32) is extended to the outside of the hydraulic cylinder (32), so that the position adjustment guide rod (4), the tilt frame (2) and the lifting guide rod (3) are rotated in a direction away from the base frame (1).

3. The lower limb exercise equipment utilizing thrust according to claim 2, characterized in that: A valve (38) is provided on one side of the hydraulic pump (31) for moving the hydraulic oil inside the hydraulic pump (31) and the hydraulic cylinder (32). When the valve (38) is opened, the hydraulic oil inside the hydraulic cylinder (32) moves toward the hydraulic pump (31) under the load of the lifting operation part (10) and the tilting frame (2), compressing the piston rod (33) of the hydraulic cylinder (32) in a direction entering the interior of the hydraulic cylinder (32), so that the position adjustment guide rod (4), the tilting frame (2) and the lifting guide rod (3) rotate in a direction close to the base frame (1).

4. The lower limb exercise equipment utilizing thrust according to claim 1, characterized in that: The lifting operation part (10) comprises: The movable seat (11) moves along the lifting guide rod (3), A chair (12) is arranged on the upper part of the movable seat (11) for a user to sit on. The chair (12) can adjust the fixed position along the position adjustment guide rod (4) by fixing the movable seat position adjustment part on the position adjustment guide rod (4). The movable seat position adjustment unit comprises: The guide pile (13) is fixedly arranged on the position adjustment guide rod (4) and forms a plurality of through holes. The guide bracket (14) is arranged to surround the outside of the guide pile (13) and form a through hole. A position fixing pin (15) is fixedly arranged on the guide bracket (14). A spring applies a force to pull the position fixing pin (15) toward the guide bracket (14), If an external force is applied to pull the position fixing pin (15) out of the through hole of the guide pile (13), the position of the guide bracket (14) can be adjusted along the length direction of the guide pile (13), and the position of the movable seat (11) can be adjusted along the length direction of the position adjustment guide rod (4), thereby adjusting the distance between the chair (12) and the footrest (41).

5. The lower limb exercise equipment utilizing thrust according to claim 1, characterized in that: The chair (12) comprises: The buttocks placement part (12a) is used to place the buttocks of the user. A backrest (12b) rests against the user's back. A neck guard (12c) supports the user's neck. The backrest (12b) can be rotated via a backrest rotating hinge (17), and a user can move while sitting on the chair (12) or while lying down.

6. The lower limb exercise equipment utilizing thrust according to claim 1, characterized in that: Two pairs of handles are arranged on both sides of the chair (12), and the two pairs of handles are composed of a pair of first handles (18) arranged on both sides of the buttocks placement part (12a) and a pair of second handles (19) arranged on both sides of the backrest (12b). When the user is sitting on the chair (12), the user exercises while holding the first handles (18), and when lying on the chair (12), the user exercises while holding the second handles (19).

7. The lower limb exercise equipment utilizing thrust according to claim 1, characterized in that: The footrest (41) can move along a guide frame (42) fixedly arranged on the placement frame (40) and can adjust the distance between the footrest (41) and the chair (12). The rotation position can be adjusted by an angle adjustment portion provided on one side of the placement frame (40). The angle adjustment unit comprises: The arc-shaped position fixing frame (43) is fixedly arranged on the foot pedal (41) and is formed with a plurality of through holes (43a). A guide frame (44) having the same radius as the position fixing frame (43), arranged on one side of the position fixing frame (43), guiding the rotation path of the position fixing frame (43) and forming a long hole, The rotational position fixing pin (45) is inserted into the through hole (43a) and can fix the rotational position of the position fixing frame (43).

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