CN115702998A - leg training machine - Google Patents

Abstract

The invention discloses a leg training machine, comprising: a frame including a base, a front bracket and a rear bracket, the front bracket is provided with a handle; a driving mechanism includes two actuating rods, two pedals, two sprocket wheel, two chains and two driving elastic bodies, one end of the two actuating rods is swingably combined on both sides of the rear bracket, the two pedals are pivotally arranged on the other end of the two actuating rods, and the two sprockets are combined on the rear On both sides of the bracket, the two chains are wound on the two sprockets and one end is combined with the two actuating rods, and one end of the two driving elastic bodies is combined with the other end of the two chains to provide the recovery of the two chains after being pulled Force; a resistance mechanism can be unidirectionally driven by the two sprockets and produce a resistance; and a linkage mechanism can be used to link the actuating rod on the other side to swing up when the actuating rod on one side swings down; thus It can effectively exercise the muscle strength and explosive power of the leg muscles when running and sprinting.

Description

leg training machine

technical field

The invention relates to a technical field related to the structure of a leg training machine, in particular to a leg training machine that can effectively exercise the muscle strength and explosive power of the leg muscles during running and sprinting.

Background technique

The use of sports and fitness training equipment can effectively solve the problems caused by factors such as weather or venues. Among the various sports and fitness training equipment on the market, steppers and treadmills are the most common sports and fitness training for exercising leg muscles Equipment, which can not only consume calories, but also exercise lung capacity. However, general steppers and treadmills all focus on the uniform exercise of most of the leg muscles when walking or running, for athletes or other athletes exercise the muscle strength and muscle strength of the part of the leg muscles that are emphasized when running and sprinting. The effect of explosive power is very limited.

In view of this, the present inventors aimed at the above-mentioned problems, conceived deeply, and actively researched and improved trial production to develop and design the present invention.

Contents of the invention

The main purpose of the present invention is to effectively exercise the muscle strength and explosive force of the leg muscles that are emphasized during running and sprinting.

The invention provides a leg training machine, which includes a frame, a driving mechanism, a resistance mechanism and a linkage mechanism. Wherein, the frame includes a base and a front bracket and a rear bracket combined on the front and rear sides of the base, and the front bracket is provided with a handle for users to lean on with both hands. The driving mechanism includes two actuating rods, two pedals, two sprockets, two chains and two driving elastic bodies. Set on the other end of the two actuating rods, the two sprockets are rotatably combined on the left and right sides of the rear bracket, the two chains are wound on the two sprockets, and one end is combined with the two actuating On the rod, it can be pulled by the two actuating rods to drive the two sprockets to rotate. One end of the two driving elastic bodies is combined with the other end of the two chains, and the other end is combined with the base, which can provide the two chains to be pulled. post-resilience. The resistance mechanism is arranged on the rear bracket and can be driven in one direction by the two sprockets to generate a resistance. The linkage mechanism is combined between the base and the two actuating rods, and can be used to link the actuating rod on the other side to swing up when the actuating rod on one side swings down.

As a further improvement of the present invention, a cushion is provided at the upper end of the rear support for the user to sit on.

As a further improvement of the present invention, a resistance controller is provided on the front support to control the resistance of the resistance mechanism.

As a further improvement of the present invention, the two driving elastic bodies are tension springs.

As a further improvement of the present invention, the two chains can use the two guide wheels wound on the two actuating rods to limit the elastic expansion and contraction direction of the two driving elastic bodies.

As a further improvement of the present invention, the resistance mechanism includes a first pulley, a second pulley, a magnetron flywheel and two belts, the first pulley is arranged on the rear bracket and is coaxial with the two sprockets, and can be The two sprockets are driven to rotate in one direction, the second pulley is rotatably arranged on the rear bracket, a first small pulley is coaxially arranged on one side of the second pulley, and the magnetron flywheel is rotatably arranged on the rear On the bracket, a second small pulley is coaxially arranged on one side of the magnetron flywheel, and the magnetron flywheel can use the resistance controller to control the magnetic force to generate a rotation resistance, and the two belts are respectively wound around the first pulley and the first pulley. The first small pulley and the second pulley are connected with the second small pulley.

As a further improvement of the present invention, the two belts can be respectively elastically pressed on one side by two tension wheels to form better tension, and the two tension wheels are respectively combined with two swing arms on the rear bracket, and the two swing arms Two tension elastic bodies are combined on the top to provide the elastic force that the two tension pulleys are pressed to one side of the two belts.

As a further improvement of the present invention, the linkage mechanism includes two swing arms, a linkage and two connecting rods, one end of the two swing arms is swingably combined with the base, and the linkage is connected to the two swing arms , so that when one of the swing arms swings down, the other swing arm swings up. The upper ends of the two connecting rods are rotatably connected to the two actuating rods, and the lower ends are rotatably connected to the other ends of the two swing arms, so that The two connecting rods can drive the two swing arms to swing.

As a further improvement of the present invention, the drive mechanism includes two stoppers, the two stoppers are arranged on the left and right sides of the rear bracket, and can be respectively blocked on one side of the two actuating rods to limit the two actuating rods. The maximum downward swing range of the moving rod.

Compared with prior art, the beneficial effect of the present invention is:

In the leg training machine provided by the present invention, the user can put both hands on the handrail, step on the two pedals with both feet to form a running and sprinting posture, and then use both feet to step down alternately to make the The two actuating rods swing up and down, and then the resistance mechanism is linked by the two chains. Using the rotational resistance formed by the resistance mechanism, the muscle strength and explosive power of the leg muscles can be effectively exercised when running and sprinting.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the present invention;

Fig. 2 is the three-dimensional schematic view of the other side of the present invention;

Fig. 3 is a schematic side view of the present invention;

Fig. 4 is the plane enlarged schematic view of resistance mechanism of the present invention;

Fig. 5 is the plane enlarged schematic view of the other side of the resistance mechanism of the present invention;

FIG. 6 is a schematic enlarged plan view of the linkage mechanism of the present invention;

Fig. 7 is a schematic enlarged plan view of the other side of the linkage mechanism of the present invention.

Symbol Description:

10: Rack

11: Base

12: Front bracket

120: handle

121: Resistance controller

13: Rear bracket

130: Cushion

20: Driving mechanism

21: Actuating lever

22: Pedal

23: sprocket

24: chain

25: drive elastomer

26: guide wheel

27: Block

30: resistance mechanism

31: The first pulley

32: Second pulley

320: The first small pulley

33:Magnetic control flywheel

330: The second small pulley

34: belt

35: tension wheel

350: arm swing

351: tension elastic body

40: linkage mechanism

41: Rotary arm

42: Linkage

43: Connecting rod

Detailed ways

Please refer to Fig. 1 to Fig. 7, which shows that the leg training machine according to the present invention includes a frame 10, a driving mechanism 20, a resistance mechanism 30 and a linkage mechanism 40, wherein:

The frame 10 includes a base 11 and a front bracket 12 and a rear bracket 13 combined on the front and rear sides of the base 11 . The front support 12 is provided with a handrail 120 for the user to lean on with both hands, and the upper end of the rear support 13 is provided with a seat cushion 130 for the user to sit on. In addition, the front bracket 12 is provided with a resistance controller 121 for controlling the resistance of the resistance mechanism 30 .

The driving mechanism 20 includes two actuating rods 21 , two pedals 22 , two sprockets 23 , two chains 24 , two driving elastic bodies 25 and two blocks 27 . One end of the two actuating rods 21 is swingably coupled to the left and right sides of the rear bracket 13 . The two pedals 22 are respectively pivoted on the other ends of the two actuating rods 21 . The two sprockets 23 are rotatably combined on the left and right sides of the rear bracket 13 . The two chains 24 are wound around the two sprockets 23 , and one end is combined with the two actuating rods 21 , and can be pulled by the two actuating rods 21 to drive the two sprockets 23 to rotate. The two driving elastic bodies 25 are tension springs, and one end is combined with the other end of the two chains 24 , and the other end is combined with the base 11 , which can provide the restoring force after the two chains 24 are pulled. And the two chains 24 can utilize the two guide wheels 26 wound on the two actuating rods 21 to limit the elastic expansion and contraction directions of the two driving elastic bodies 25 . The two stoppers 27 are arranged on the left and right sides of the rear bracket, and can respectively block one side of the two actuating rods 21 to limit the maximum downward swing range of the two actuating rods 21 .

The resistance mechanism 30 is arranged on the rear bracket 13 and can be driven by the two actuating rods 21 to generate a resistance. The resistance mechanism 30 includes a first pulley 31 , a second pulley 32 , a magnetron flywheel 33 and two belts 34 . The first pulley 31 is disposed on the rear bracket 13 and coaxial with the two sprockets 23 , and can be driven by the two sprockets 23 to rotate in one direction. The second pulley 32 is rotatably disposed on the rear bracket 13 and is located below the first pulley 31 . A first small pulley 320 is coaxially disposed on one side of the second pulley 32 . The magnetron flywheel 33 is rotatably arranged on the rear bracket 13, and is located below the second pulley 32, and a second small pulley 330 is coaxially arranged on one side of the magnetron flywheel 33, and the magnetron flywheel 33 The resistance controller 121 can be used to control the magnetic force to generate a rotational resistance. The two belts 34 wind around the first pulley 31 and the first small pulley 320 and the second pulley 32 and the second small pulley 330 respectively. And these two belts 34 can respectively utilize two tension pulleys 35 to be elastically pressed on one side to form a better tension force, and the two tension pulleys 35 are then combined on the rear bracket 13 with two swing arms 350 respectively, and the two swing arms Two tension elastic bodies 351 are combined on the 350 to provide elastic force for the two tension pulleys 35 to press against the two belts 34 . The two tension elastic bodies 351 can be tension springs.

The linkage mechanism 40 is combined between the base 11 and the two actuating rods 21 , so that when the actuating rod 21 on one side swings down, the actuating rod 21 on the other side swings up. The linkage mechanism 40 includes two swing arms 41 , a linkage 42 and two linkages 43 . One ends of the two swing arms 41 are swingably combined with the base 11 . The linkage member 42 is connected to the two swing arms 41 , so that when one swing arm 41 swings down, the other swing arm 41 swings up. The upper ends of the two connecting rods 43 are rotatably connected to the two actuating rods 21 , and the lower ends are rotatably connected to the other ends of the two swing arms 41 , so that the two connecting rods 43 can drive the two swing arms 41 to swing.

In this way, the user can put both hands on the handrail 120 and step on the two pedals 22 with both feet to form a running and sprinting posture. Then step down alternately by both feet to make the two actuating levers 21 swing up and down, and then the magnetic control flywheel 33 of the resistance mechanism 30 is linked by the two chains 24 to rotate, and the distance between the magnets is used to control the magnetic control flywheel 33. The rotation resistance can effectively exercise the muscle strength and explosive power of the leg muscles when running and sprinting. The cushion 130 on the frame 10 can be used for rest during training.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. A leg training machine, comprising:

the frame comprises a base, a front bracket and a rear bracket which are combined with the front side and the rear side of the base, and the front bracket is provided with a holding handle for holding two hands of a user;

the driving mechanism comprises two actuating rods, two pedals, two chain wheels, two chains and two driving elastic bodies, wherein one ends of the two actuating rods are combined on the left side and the right side of the rear support in a swinging mode, the two pedals are respectively pivoted to the other ends of the two actuating rods, the two chain wheels are combined on the left side and the right side of the rear support in a rotating mode, the two chains are wound on the two chain wheels, one ends of the two chains are combined on the two actuating rods and can be pulled by the two actuating rods to drive the two chain wheels to rotate, one ends of the two driving elastic bodies are combined on the other ends of the two chains, the other ends of the two driving elastic bodies are combined on the base, and restoring force of the two chains after being pulled can be provided;

the resistance mechanism is arranged on the rear bracket and can be driven by the two chain wheels in a single direction to generate resistance; and

a linkage mechanism, which is combined between the base and the two actuating rods and can link the actuating rod on one side to swing upwards when the actuating rod on the other side swings downwards.

2. The leg exercise apparatus according to claim 1, wherein the rear frame is provided at an upper end thereof with a seat cushion for a user to sit thereon.

3. The leg exercise machine of claim 1 wherein the front frame has a resistance control for controlling the resistance of the resistance mechanism.

4. The leg training machine of claim 1 wherein the two drive springs are extension springs.

5. The leg exercising apparatus according to claim 1, wherein the two chains are capable of limiting the elastic extension direction of the two driving elastic bodies by means of two guide rollers wound around the two actuating rods.

6. The leg training machine as claimed in claim 3, wherein the resistance mechanism comprises a first pulley, a second pulley, a magnetically controlled flywheel and two belts, the first pulley is disposed on the rear bracket and coaxial with the two sprockets and can be driven by the two sprockets to rotate in one direction, the second pulley is rotatably disposed on the rear bracket, a first small pulley is coaxially disposed on one side of the second pulley, the magnetically controlled flywheel is rotatably disposed on the rear bracket, a second small pulley is coaxially disposed on one side of the magnetically controlled flywheel, the magnetically controlled flywheel can generate a rotational resistance by controlling magnetic force with the resistance controller, and the two belts are respectively wound on the first pulley and the first small pulley and the second small pulley.

7. The leg training machine as claimed in claim 6, wherein the two belts are elastically pressed to one side by two force wheels to form a better tension, and the two force wheels are respectively coupled to the rear frame by two swing arms coupled to two force elastic bodies to provide an elastic force for the two force wheels to press to one side of the two belts.

8. The leg exercise device as claimed in claim 1, wherein the linkage mechanism comprises two swing arms, a linkage member and two connecting rods, one end of each of the two swing arms is pivotally connected to the base, the linkage member is connected to the two swing arms such that when one of the swing arms swings down, the linkage member moves the other swing arm upward, the upper ends of the two connecting rods are pivotally connected to the two actuating rods, and the lower ends of the two connecting rods are pivotally connected to the other ends of the two swing arms such that the two connecting rods drive the two swing arms to swing.

9. The leg exercising apparatus according to claim 1, wherein the driving mechanism comprises two stops disposed on the left and right sides of the rear frame for stopping against one side of the two actuating rods respectively to limit the maximum downward swing range of the two actuating rods.

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