WO2009021439A1 - Mechanical leg for assisting running and jumping - Google Patents

Abstract

A mechanical leg for assisting running and jumping includes upper and lower assistant legs(1,2). The middle portion of the upper assistant leg(1) is connected with an upper support(7) by a pin, and the lower end of the upper support(7) is connected with an lower support(8) by a pin. The lower end of the lower support(8) is connected with a tension spring(9) which is fixed on the lower assistant leg(2), and the upper end of the lower support(8) is a ratchet gear. A ratchet(12) is provided on the middle portion of the upper support(7), the top end of which locks the ratchet gear when being applied a force. The mechanical leg is fixed on a user's legs with leggings(4,5,6) and provides the user a assistant force for running and jumping with the energy reserved by the tension spring(9).

Description

 Run-up assisted mechanical leg

Technical field

 The invention relates to an elastic assisting device, in particular to a running assisted jumping mechanical leg. Background technique

 The running assisted mechanical leg is mainly used for single-person outdoor off-road use. It is directly installed on the human leg to provide assistance for people to travel. Existing power assisted mechanical legs (such as Chinese patent applications)

200410069529.5) There are defects in stability, it is difficult to control when using, and because of the hydraulic system, the structure is more complicated, the weight is larger, the use is more cumbersome, and the walking is more laborious. In order to achieve a better effect in use, the mechanical leg of this structure requires constant adjustment of the gas valve of the cylinder, and the use of the mechanical leg is complicated in different environments and conditions. Summary of the invention

 The object of the present invention is to provide a running assisted jumping mechanical leg which is simple in structure, light in weight, easy to control, and convenient to use, in view of the defects of the prior art mechanical leg.

 The technical solution of the present invention is as follows: a running assisted jumping mechanical leg, comprising upper and lower two-step assisting legs connected by a pin shaft, and the lower end of the lower assisting leg is connected with a ground leg, and the upper and lower two-step assisting legs are There are three leggings; the middle of the upper assisting leg is connected to the upper strut by a pin shaft, the lower end of the upper strut is connected to the lower strut by a pin shaft, and the lower end of the lower strut is connected with a tension spring provided on the lower boosting leg, The middle and lower sections of the lower assist leg are respectively provided with elongated openings.

The running assisting mechanical leg as described above, wherein the upper end of the lower strut is a ratchet gear structure, the middle of the upper strut is provided with a ratchet, and the ratchet tip is caught by the ratchet gear of the lower strut under the force . The running assisting mechanical leg as described above, wherein the ratchet is connected to the upper end of the transmission line through a return spring, and the lower end of the transmission line is connected to the follower slide provided on the lower assist leg.

 The running assisting mechanical leg as described above, wherein the upper and lower assist legs are connected together by two concentric shafts, and a certain space is left between the two concentric shafts.

 The invention is fixed by the three leggings respectively to the thigh root, the knee and the ankle of the human body, starting from the ground of the front leg of the person, the mechanical leg stores energy, the frontal force of the person, and the gravity of the person are converted into a pull. The spring force of the spring is stored. When the ankle is on the ground, the stored force is released, so that the person can release a small amount of physical strength to increase the speed of movement and the height of the jump. The running assisted mechanical leg has a simple structure, light weight, easy control, and convenient use, and is very suitable for off-road personnel. DRAWINGS

 Figure 1 is a schematic view of the structure of the present invention.

 Figure 2 is a schematic view of the structure after bending according to the present invention (excluding leggings).

 Figure 3 is an exploded view of the structure of the present invention.

 In the figure, 1. booster leg 2. lower booster leg 3. foot 4. upper legging 5. middle legging 6. lower legging 7. upper strut 8. lower strut 9. tension spring 10. drive line 11. follow Slide 12. ratchet 13. return spring 14. upper strut attitude return spring 15. drive line lower section fixed piece

As shown in the figure, the running assisting mechanical leg includes upper and lower two-step assisting legs 1, 2 connected by a pin shaft, and the lower end of the lower assisting leg 2 is connected with a grounding leg 3, and the upper and lower two-stage assisting legs 1. 2 There are three leggings 4, 5, 6 on the top; the middle of the upper assist leg 1 passes the pin and the upper strut 7 is connected, the lower end of the upper strut 7 is connected to the lower strut 8 through a pin shaft, and the lower end of the lower strut 8 is connected with a tension spring 9 provided on the lower assist leg 2, and the lower middle section of the upper and lower assist legs 1 and 2 respectively An elongated opening is provided to facilitate the setting and movement of the upper and lower struts 7, 8. The upper end of the lower strut 8 is a ratchet gear structure, and the upper strut 7 is provided with a ratchet 12 in the middle thereof, and the tip of the ratchet 12 is caught by the ratchet gear of the lower strut 7 under the force. The ratchet 12 is connected to the upper end of the drive line 10 via a return spring 13, and the lower end of the drive line 10 is connected to the follower slide 11 provided on the lower assist leg 2, and the lower end of the drive line sheath is fixed to the lower fixed piece of the upper section of the lower assist leg 15 on. The upper and lower sections of the booster legs 1 and 2 are connected together by two concentric shafts, leaving a certain space between the two concentric shafts.

 When using, tie the upper leg of the mechanical leg to the root of the person's thigh, tie the middle leggings over the person's knee joint, and tie the lower leggings to the person's ankle. Let the legs and mechanical legs merge into one. When exercising, the human legs move a little first, and then, because of the leggings tied, the mechanical legs also move.

 The tension spring 9 is fitted into the upper portion of the lower assist leg 2, and the upper end of the tension spring 9 is hung on the hanging piece of the upper inner section of the lower assist leg 2; the lower section of the tension spring 9 is hung on the hanging eye of the lower section of the lower strut 8. The upper section of the lower strut 8 is a ratchet gear of about 2/3 round, and the ratchet gear is integrated with the lower strut. The upper strut 7 is hollow, just sandwiching the lower strut, and then stringing the pin shafts, centering on the central axis of the strut, and swinging each other. A ratchet 12 is provided in the middle of the upper strut 7 so that the ratchet tip can catch the ratchet gear.

The middle of the ratchet gear has a shaft eye, and the ratchet gear can be fixed on the upper strut 7 (swingable); the other end of the ratchet 12 has an eye fixed to the drive line 10, and the upper end of the drive line 10 is fixed. At the upper end of the ratchet 12; a return spring 13 is placed on the drive line 10, one end of the return spring 13 is placed on the ratchet 12, and the other end is placed on the outer skin of the drive line 10 and the outer skin and the upper strut 7 fixing member. Thus, when there is no external force, the ratchet 12 is opened. The ratchet tip does not hold the ratchet gear.

 The lower end of the drive line 10 (the lower end of the drive line core) is connected to the follower slide 11 of the lower assist leg 2. Thus, when the person steps on the ground, the lower end of the mechanical leg first touches the ground, and then the person's foot touches the ground again. At this time, the drive line 10 is naturally pulled, so that the ratchet 12 is also pulled, and the ratchet 12 naturally tops the main ratchet gear. When the person continues to bend down the leg, the mechanical leg will naturally bend together. Because the ratchet 12 is against the ratchet gear, it cannot be bent down, so that the lower strut 8 is naturally pressed down (the lower assist leg has a chute); the tension spring provided inside the lower assist leg is naturally pulled apart. This is equivalent to storing the weight and the impact of the person. When a person climbs the ground and wants to jump up, it is naturally the force of the human springs. Therefore, the height of the person's jump will be higher than usual, and the force used will be less.

 When a person walks normally on the ground, he naturally lifts a foot first. At this time, the person's foot first leaves the ground, and the mechanical leg leaves the ground, so that the follower slide 11 is naturally lifted, and the drive line 10 is also returned, the ratchet tip. Leave the ratchet gear. At this time, the upper and lower struts 7, 8 naturally oscillate synchronously with the mechanical legs (the two concentric shafts of the knee joint of the mechanical leg and the central central axis of the upper and lower struts are concentric). When people walk and raise their legs and bend their knees, whether they are walking, running or jumping, as long as the person lifts the leg, the tension spring will not work. The mechanical legs are bent together, lifted together, and when the human legs land, the tension spring acts, storing the energy and releasing it the next time it jumps.

 When walking, as with normal walking, the mechanical legs do not work at this time.

 When running, the human leg starts to land, the mechanical leg stores energy, and the human's frontal force, plus the human body's gravity, is converted into the elastic force of the tension spring and stored. When you use your ankles, the stored force is released. In this way, people can release very little physical strength to increase the speed of movement and the height of jumping.

Claims

Rights request  A running assisting mechanical leg comprising upper and lower two-legged assisting legs (1, 2) connected by a pin shaft, the lower end of the lower assisting leg (2) being connected to a foot (3), characterized in that: There are three leggings (4, 5, 6) on the upper and lower assist legs (1, 2); the middle of the upper assist leg (1) is connected to the upper strut (7) through the pin, the upper strut The lower end of (7) is connected to the lower strut (8) via a pin, and the lower end of the lower strut (8) is connected to a tension spring (9) provided on the lower assist leg (2), and the upper and lower assist legs (1) 2) The middle and lower sections are respectively provided with elongated openings.  2. The running assisting mechanical leg according to claim 1, wherein: the upper end of the lower strut (8) is a ratchet gear structure, and the upper strut (7) is provided with a ratchet (12) in the middle, a ratchet (12) The tip catches the ratchet gear of the lower strut (7) under force.  3. The running assisting mechanical leg according to claim 2, wherein the ratchet (12) is connected to the upper end of the transmission line (10) via a return spring (13), and the lower end of the transmission line (10) is provided. Connect to the follower slide (11) on the lower assist leg (2).  4. The running assisting mechanical leg according to claim 1 or 2 or 3, characterized in that: the upper and lower two-step assisting legs (1, 2) are connected together by two concentric shafts, two concentric There is a certain amount of space in the middle of the shaft.