Lower limb muscle ligament strengthening simulator for parachuting training

Abstract

The invention relates to the technical field of parachuting simulators, and discloses a lower limb muscle ligament strengthening simulator for parachuting training, which comprises a bottom plate and also comprises a lifting mechanism arranged above the bottom plate and capable of driving a parachuting player to move up and down; a parachuting platform; the athletes can jump from the parachuting platform to the landing platform under the suspension of the lifting mechanism; the protection mechanism comprises a first protection shell and a second protection shell; the first protection shell is mounted and attached to the outer side of the thigh of the athlete; the first protective shell is rotationally connected with the second protective shell; a first connecting rod; a second connecting rod; the component force spring is arranged between the first connecting rod and the second connecting rod; by arranging the protection mechanism, elastic force can be provided between the thigh and the shank through the first protection shell and the second protection shell, buffering force can be provided between the thigh and the shank, the bending degree of the knee joint is prevented from being large, and lower limb muscles or ligaments are prevented from being damaged.

Description

Technical Field

[0001] The invention relates to the technical field of simulators, and more particularly to a lower limb muscle and ligament strengthening simulator for parachuting training. Background Art

[0002] Lower limb ligament training is a key link for skydivers, because when skydiving and landing, their legs and feet need to bear a lot of impact force. In order to avoid injuries, they need to undergo a series of training to enhance the strength and flexibility of the lower limb muscles and ligaments.

[0003] In the prior art, a parachuting platform and a lifting platform are set up, and parachutists are suspended under the lifting platform by ropes. Parachutists can choose to jump from parachuting platforms at different heights. The lifting platform can control the descent speed of the parachutists through the ropes. In conjunction with a VR helmet, the parachuting process can be simulated. When it is necessary to land on the ground, the lifting platform can allow the parachutists to land on the ground at different speeds through the ropes. These can simulate and train the operation process of parachuting athletes. The faster the parachutists land on the ground, the greater the impact force on their lower limb muscles.

[0004] However, the existing technology still has shortcomings. When a parachutist lands on the ground, if the impact force during landing is greater than the parachutist's leg muscle tolerance, the parachutist's leg muscle ligaments will easily be damaged.

[0005] Therefore, the invention provides a lower limb muscle and ligament strengthening simulator for parachuting training. Summary of the invention

[0006] The present invention provides a lower limb muscle and ligament strengthening simulator for parachuting training, which solves the technical problem in the related art that if the impact force during landing is greater than the bearing capacity of the leg muscles of the parachutist, the leg muscles and ligaments of the parachutist will be easily damaged.

[0007] The present invention provides a lower limb muscle and ligament strengthening simulator for parachuting training, comprising: a base plate, and also comprising: a lifting mechanism arranged above the base plate and capable of driving a parachutist to move up and down; a parachuting platform arranged above the base plate; a landing platform arranged above the base plate, and the athlete can jump from the parachuting platform to the landing platform under the suspension of the lifting mechanism; and a protection mechanism, wherein the protection mechanism is used to prevent lower limb muscle or ligament damage; wherein the protection mechanism comprises: a first protective shell installed on and attached to the outer side of the athlete's thigh; a second protective shell installed on and attached to the outer side of the athlete's calf, the first protective shell being rotatably connected to the second protective shell; a first connecting rod having one end movably connected to the outer side wall of the first protective shell; a second connecting rod having one end movably connected to the outer side wall of the second protective shell; and a force component spring arranged between the first connecting rod and the first connecting rod.

[0008] Specifically, in the initial state, the parachutist stands on the parachuting platform. The athlete can jump from the parachuting platform to the landing platform under the suspension of the lifting mechanism. When the athlete lands, the athlete's lower limbs will impact on the landing platform. When the parachutist lands, the ground exerts a large impact force on the legs. In order to reduce the impact of this impact on the body, the knee joint will naturally bend, and the angle between the athlete's thigh and calf will become smaller, which can play a role in slowing down the impact, thereby protecting the body from excessive pressure and injury. When the impact force is greater than the athlete's body's tolerance, the knee joint will bend to a greater extent, and the angle between the athlete's thigh and calf will become very small, and the muscles or ligaments of the lower limbs can be easily damaged. By setting a protective mechanism, the force-dividing spring can provide an elastic force between the thigh and the calf through the first protective shell and the second protective shell, and can provide a buffering force between the thigh and the calf, thereby preventing the knee joint from bending to a large extent and avoiding damage to the muscles or ligaments of the lower limbs.

[0009] Preferably, the lifting mechanism includes: a fixed body fixedly mounted on the top surface of the base plate, the fixed body being provided with a sliding groove; a lifting plate slidably arranged in the sliding groove; a first electric push rod fixedly mounted on the top surface of the base plate for driving the lifting plate to move up and down in the sliding groove; and a rope fixedly connected to the lifting plate, the rope being used to connect the athletes.

[0010] Preferably, the parachuting platform comprises: a second electric push rod fixedly mounted on the top surface of the base plate; and a lifting platform fixedly connected to the output end of the second electric push rod.

[0011] Preferably, the landing platform comprises: a landing plate arranged above the bottom plate; and a third electric push rod arranged between the landing plate and the bottom plate.

[0012] Preferably, the protection mechanism also includes: an elastic component for controlling the landing plate to float up and down, wherein the elastic component includes: an airbag arranged between the first connecting rod and the second connecting rod, the airbag is in the annular ring layer of the force component spring; a hollow body fixedly installed on the top surface of the base plate; a hose for connecting the airbag and the hollow body; a piston member connected to the hollow body, when the airbag is squeezed, the pressure in the hollow body increases, and the piston member pushes the third electric push rod to move; and a shock-absorbing spring arranged between the base plate and the landing plate, and both ends of the shock-absorbing spring are respectively fixed to the base plate and the landing plate.

[0013] Preferably, the piston member comprises: a piston cylinder fixedly connected to the side wall of the cavity body, the piston cylinder being in communication with the interior of the cavity body; and a piston rod slidably disposed inside the piston cylinder, the piston rod being capable of pushing the third electric push rod to move.

[0014] Specifically, by setting up a protection mechanism, when a parachutist lands, the ground exerts a great impact force on the legs. In order to reduce the impact of this impact on the body, the knee joint will naturally bend, and the angle between the athlete's thigh and calf will become smaller. The first connecting rod cooperates with the second connecting rod to drive the force component spring to compress. At the same time, when the airbag is squeezed, the pressure in the cavity increases, and the third electric push rod is pushed to move through the piston rod. When the third electric push rod moves to a point where it is not between the landing plate and the bottom plate, the landing plate can have a certain buffer landing space through the shock-absorbing spring. The buffer landing space can play a role in slowing down the impact, thereby protecting the muscles and ligaments of the lower limbs from excessive pressure and damage. At the same time, by increasing or decreasing the air pressure in the airbag, the distance of the movement of the trigger piston rod can be adjusted, and the piston rod can be controlled to push the third electric push rod to move when the thigh and calf are at different angles, so as to meet the trigger conditions under different leg bending states, and can adapt to and meet the use of athletes with different leg requirements.

[0015] Preferably, the elastic component also includes a rolling member, which can reduce the friction between the third electric push rod and the base plate and the landing plate, and the rolling member includes: two support blocks arranged above and below the third electric push rod, and the two support blocks are respectively fixedly connected to the output end and the base end of the third electric push rod; a support plate arranged between the upper and lower support blocks, the lower end of the support plate is fixedly connected to one of the support blocks, and the upper end of the support plate passes through and is slidably connected to the other support block, and the piston rod can drive the third electric push rod to move by pushing the support plate; and a rotating wheel rotatably installed on the support block, and the support block can be transmission-connected to the base plate or the landing plate through the rotating wheel.

[0016] Preferably, the elastic component also includes a reset member, which drives the third electric push rod to move, and a movable groove is opened on the top surface of the base plate. The reset member includes: a reset spring arranged in the movable groove, and the rotating wheel can move in the movable groove, and both ends of the reset spring are respectively fixed to the base plate and the support block.

[0017] Specifically, by setting a rolling member, the friction between the third electric push rod and the base plate and the landing plate can be reduced, so that when the pressure in the airbag changes, the piston rod can push the third electric push rod to move more sensitively and quickly. When the athlete's leg bending degree becomes larger and exceeds the bearing range of the lower limb muscles and ligaments, reducing the friction between the third electric push rod and the base plate and the landing plate can allow the third electric push rod to quickly detach from the bottom surface of the landing plate, so that the landing plate quickly forms a buffer platform with the shock-absorbing spring, which is used for buffering the athlete's legs and avoiding damage to the athlete's lower limb muscles and ligaments.

[0018] Preferably, it also includes a synchronization mechanism arranged on the top surface of the base plate, and the synchronization mechanism is used to enable multiple piston rods to move synchronously. The synchronization mechanism includes: a rotating gear that is sleeved and rotatably connected to the cavity body; a fixed platform fixedly connected to the top surface of the base plate; a rack that passes through and is slidably connected to the fixed platform, and the rack is meshed and connected to the rotating gear; and a synchronization rod for fixing the rack and the piston rod, and an anti-slip pad is provided on the top surface of the landing plate.

[0019] Specifically, by setting a synchronization mechanism, when the pressure in the airbag cooperates with the cavity body changes, the piston rod pushes the third electric push rod to move. If each piston rod slides independently, due to the inconsistent friction between each piston rod and the piston cylinder, the distances at which multiple piston rods drive the third electric push rods to detach from the bottom surface of the landing board will be inconsistent, which will in turn cause the time for multiple third electric push rods to detach from the bottom surface of the landing board to be inconsistent. When some of the third electric push rods detach from the landing board and other third electric push rods do not detach from the bottom surface of the landing board, the landing board will tilt under the force, which may easily cause damage to the athlete's foot muscles and ligaments. By setting a synchronization mechanism, multiple piston rods can synchronously push the third electric push rods to detach from the bottom surface of the landing board by rotating gears, thereby solving the problem of damage to the athlete's foot muscles and ligaments caused by the tilt of the landing board.

[0020] The beneficial effects of the present invention are as follows: in the lower limb muscle and ligament strengthening simulator for parachuting training described in the present invention, in the initial state, the parachutist stands on the parachuting platform, and the athlete can jump from the parachuting platform to the landing platform under the suspension of the lifting mechanism. When the athlete lands, the athlete's lower limbs will impact on the landing platform. When the parachutist lands, the ground exerts a large impact force on the legs. In order to reduce the impact of this impact on the body, the knee joint will naturally bend, and the angle between the athlete's thigh and calf will become smaller, which can play a role in alleviating the impact, thereby protecting the body from excessive pressure and injury. When the impact force is greater than the athlete's body's bearing capacity, the knee joint will bend to a large extent, and the angle between the athlete's thigh and calf will become very small, and the lower limb muscles or ligaments are easily damaged. By setting a protective mechanism, the force component spring can provide an elastic force between the thigh and the calf through the first protective shell and the second protective shell, and can provide a buffering force between the thigh and the calf, preventing the knee joint from bending to a large extent, and avoiding damage to the lower limb muscles or ligaments.

[0021] The lower limb muscle and ligament strengthening simulator for parachuting training described in the present invention is provided with a protection mechanism. When the parachutist lands, the ground exerts a great impact force on the legs. In order to reduce the impact of this impact on the body, the knee joint will bend naturally, and the angle between the athlete's thigh and calf will become smaller. The first connecting rod cooperates with the second connecting rod to drive the force component spring to compress. At the same time, when the airbag is squeezed, the pressure in the cavity increases, and the third electric push rod is pushed to move by the piston rod. When the third electric push rod moves to a position not between the landing plate and the bottom plate, the landing plate can have a certain buffer landing space through the shock-absorbing spring. The buffer landing space can play a role in slowing down the impact, thereby protecting the lower limb muscle and ligament from excessive pressure and damage. At the same time, by increasing or decreasing the air pressure of the airbag, the movement distance of the trigger piston rod can be adjusted, and the piston rod can be controlled to push the third electric push rod to move when the thigh and the calf are at different angles, so that the trigger conditions under different leg bending states can be met, and the use of athletes with different leg requirements can be adapted and met.

[0022] The lower limb muscle and ligament strengthening simulator for skydiving training described in the present invention can reduce the friction between the third electric push rod and the base plate and the landing board by setting a rolling part, so that when the pressure in the airbag changes, the piston rod can push the third electric push rod to move more sensitively and quickly. When the degree of bending of the athlete's legs becomes larger and exceeds the bearing range of the lower limb muscles and ligaments, reducing the friction between the third electric push rod and the base plate and the landing board can allow the third electric push rod to quickly break away from the bottom surface of the landing board, so that the landing board quickly forms a buffer platform with the shock-absorbing spring, which is used for buffering the athlete's legs and avoiding damage to the athlete's lower limb muscles and ligaments.

[0023] The lower limb muscle and ligament strengthening simulator for skydiving training described in the present invention has a synchronization mechanism. When the airbag cooperates with the pressure change in the cavity, the piston rod pushes the third electric push rod to move. If each piston rod slides independently, due to the inconsistent friction between each piston rod and the piston cylinder, the distances at which the multiple piston rods drive the third electric push rods to separate from the bottom surface of the landing board will be inconsistent, which will in turn cause the time for the multiple third electric push rods to separate from the bottom surface of the landing board to be inconsistent. When some of the third electric push rods separate from the landing board and other third electric push rods do not separate from the bottom surface of the landing board, the landing board will tilt under the condition of force, which may easily cause damage to the athlete's foot muscles and ligaments. By setting the synchronization mechanism, the multiple piston rods can synchronously push the third electric push rods to separate from the bottom surface of the landing board by rotating gears, thereby solving the problem of damage to the athlete's foot muscles and ligaments caused by the tilt of the landing board. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a stereogram of an embodiment of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the protection mechanism in the present invention;

[0026] Figure 3 It is a structural schematic diagram of the lifting mechanism and the parachuting platform in the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the hollow cavity of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the elastic component in the present invention;

[0029] Figure 6 It is a structural schematic diagram of the rolling element in the present invention.

[0030] In the figure: 1, bottom plate; 2, lifting mechanism; 21, fixed body; 22, sliding groove; 23, lifting plate; 24, first electric push rod; 25, rope; 3, parachute platform; 31, second electric push rod; 32, lifting platform; 4, landing platform; 41, landing plate; 42, third electric push rod; 5, protection mechanism; 51, first protective shell; 52, second protective shell; 53, first connecting rod; 54, second connecting rod; 55, force component spring; 56, elastic component; 561, airbag ; 562, hollow body; 563, hose; 564, piston member; 5641, piston cylinder; 5642, piston rod; 5641, piston cylinder; 5642, piston rod; 565, shock-absorbing spring; 566, rolling member; 5661, support block; 5662, support plate; 5663, rotating wheel; 567, reset member; 5671, movable groove; 5672, reset spring; 6, synchronization mechanism; 61, rotating gear; 62, fixed platform; 63, rack; 64, synchronization rod. DETAILED DESCRIPTION

[0031] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0032] Example

[0033] like Figures 1 to 6 As shown, the lower limb muscle and ligament strengthening simulator for parachuting training described in the embodiment of the present invention, please refer to Figure 1 , Figure 2 , including: a base plate 1, and also including: a lifting mechanism 2 arranged above the base plate 1 and capable of driving a parachutist to move up and down; a parachuting platform 3 arranged above the base plate 1; a landing platform 4 arranged above the base plate 1, and the athlete can jump from the parachuting platform 3 to the landing platform 4 under the suspension of the lifting mechanism 2; and a protection mechanism 5, the protection mechanism 5 is used to prevent lower limb muscle or ligament damage; wherein, the protection mechanism 5 includes: a first protective shell 51 installed and attached to the outer side of the athlete's thigh; a second protective shell 52 installed and attached to the outer side of the athlete's calf, the first protective shell 51 is rotatably connected to the second protective shell 52; a first connecting rod 53 with one end movably connected to the outer side wall of the first protective shell 51; a second connecting rod 54 with one end movably connected to the outer side wall of the second protective shell 52; and a force component spring 55 arranged between the first connecting rod 53 and the first connecting rod 53.

[0034] Specifically, in the initial state, the parachutist stands on the parachuting platform 3. The athlete can jump from the parachuting platform 3 to the landing platform 4 under the suspension of the lifting mechanism 2. When the athlete lands, the athlete's lower limbs will impact on the landing platform 4. When the parachutist lands, the ground exerts a large impact force on the legs. In order to reduce the impact of this impact on the body, the knee joint will naturally bend, and the angle between the athlete's thigh and calf will become smaller, which can play a role in slowing down the impact, thereby protecting the body from excessive pressure and injury. When the impact force is greater than the athlete's body's bearing capacity, the knee joint will bend to a greater extent, and the angle between the athlete's thigh and calf will become very small, and the lower limb muscles or ligaments will be easily damaged. By setting up the protection mechanism 5, the force component spring 55 can provide an elastic force between the thigh and the calf through the first protective shell 51 and the second protective shell 52, and can provide a buffering force between the thigh and the calf, preventing the knee joint from bending to a large extent, thereby avoiding damage to the lower limb muscles or ligaments.

[0035] Please refer to Figure 1 The lifting mechanism 2 includes: a fixed body 21 fixedly mounted on the top surface of the base plate 1, and a sliding groove 22 is provided on the fixed body 21; a lifting plate 23 slidably arranged in the sliding groove 22; a first electric push rod 24 fixedly mounted on the top surface of the base plate 1 for driving the lifting plate 23 to move up and down in the sliding groove 22; and a rope 25 fixedly connected to the lifting plate 23, and the rope 25 is used to connect athletes.

[0036] Please refer to Figure 3 The parachuting platform 3 includes: a second electric push rod 31 fixedly mounted on the top surface of the base plate 1; and a lifting platform 32 fixedly connected to the output end of the second electric push rod 31.

[0037] Please refer to Figure 3 The landing platform 4 includes: a landing plate 41 arranged above the bottom plate 1; and a third electric push rod 42 arranged between the landing plate 41 and the bottom plate 1.

[0038] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 The protection mechanism 5 also includes: an elastic component 56 for controlling the landing plate 41 to float up and down, wherein the elastic component 56 includes: an airbag 561 arranged between the first connecting rod 53 and the second connecting rod 54, and the airbag 561 is in the annular ring layer of the component spring 55; a hollow cavity 562 fixedly installed on the top surface of the bottom plate 1; a hose 563 for connecting the airbag 561 and the hollow cavity 562; a piston member 564 connected to the hollow cavity 562, when the airbag 561 is squeezed, the pressure in the hollow cavity 562 increases, and the piston member 564 pushes the third electric push rod 42 to move; and a shock-absorbing spring 565 arranged between the bottom plate 1 and the landing plate 41, and the two ends of the shock-absorbing spring 565 are respectively fixed to the bottom plate 1 and the landing plate 41.

[0039] Please refer to Figure 4 , Figure 5 The piston member 564 includes: a piston cylinder 5641 fixedly connected to the side wall of the cavity body 562, the piston cylinder 5641 is connected to the interior of the cavity body 562; and a piston rod 5642 slidably arranged inside the piston cylinder 5641, the piston rod 5642 can push the third electric push rod 42 to move.

[0040] Specifically, by providing the protection mechanism 5, when the parachutist lands, the ground exerts a great impact force on the legs. In order to reduce the impact of this impact on the body, the knee joint will naturally bend, and the angle between the athlete's thigh and calf will become smaller. The first connecting rod 53 cooperates with the second connecting rod 54 to drive the force component spring 55 to compress. At the same time, when the airbag 561 is squeezed, the pressure in the cavity 562 increases, and the piston rod 5642 pushes the third electric push rod 42 to move. When the third electric push rod 42 moves to a position not between the landing plate 41 and the bottom plate 1 The landing plate 41 can have a certain buffer landing space through the shock-absorbing spring 565, and the buffer landing space can play a role in reducing the impact, thereby protecting the muscles and ligaments of the lower limbs from excessive pressure and damage. At the same time, by increasing or decreasing the air pressure in the airbag 561, the movement distance of the trigger piston rod 5642 can be adjusted, and the piston rod 5642 can be controlled to push the third electric push rod 42 to move when the thigh and the calf are at different angles. It can achieve the trigger conditions under different leg bending states and can adapt to and meet the use of athletes with different leg requirements.

[0041] Please refer to Figure 5 , Figure 6 , the elastic component 56 also includes a rolling member 566, which can reduce the friction between the third electric push rod 42 and the bottom plate 1 and the landing plate 41, and the rolling member 566 includes: two support blocks 5661 arranged above and below the third electric push rod 42, and the two support blocks 5661 are respectively fixed to the output end and the base end of the third electric push rod 42; a support plate 5662 arranged between the upper and lower support blocks 5661, the lower end of the support plate 5662 is fixed to one of the support blocks 5661, and the upper end of the support plate 5662 passes through and is slidably connected to the other support block 5661, and the piston rod 5642 can drive the third electric push rod 42 to move by pushing the support plate 5662; and a rotating wheel 5663 rotatably installed on the support block 5661, and the support block 5661 can be transmission-connected to the bottom plate 1 or the landing plate 41 through the rotating wheel 5663.

[0042] Please refer to Figure 6 The elastic component 56 also includes a reset member 567, which drives the third electric push rod 42 to move. A moving groove 5671 is opened on the top surface of the base plate 1. The reset member 567 includes: a reset spring 5672 arranged in the moving groove 5671, and the rotating wheel 5663 can move in the moving groove 5671. The two ends of the reset spring 5672 are respectively fixed to the base plate 1 and the support block 5661.

[0043] Specifically, by setting the rolling member 566, the friction between the third electric push rod 42 and the base plate 1 and the landing plate 41 can be reduced, so that when the pressure in the airbag 561 changes, the piston rod 5642 can push the third electric push rod 42 to move more sensitively and quickly. When the athlete's leg bending degree becomes larger and exceeds the bearing range of the lower limb muscles and ligaments, reducing the friction between the third electric push rod 42 and the base plate 1 and the landing plate 41 can allow the third electric push rod 42 to quickly break away from the bottom surface of the landing plate 41, so that the landing plate 41 quickly forms a buffer platform with the shock-absorbing spring 565, which is used for buffering the athlete's legs and avoiding damage to the athlete's lower limb muscles and ligaments.

[0044] Please refer to Figure 3 , Figure 4 , also includes a synchronization mechanism 6 arranged on the top surface of the base plate 1, the synchronization mechanism 6 is used to enable multiple piston rods 5642 to move synchronously, the synchronization mechanism 6 includes: a rotating gear 61 mounted and rotatably connected to the cavity body 562; a fixed platform 62 fixedly connected to the top surface of the base plate 1; a rack 63 passing through and slidably connected to the fixed platform 62, the rack 63 is meshed and connected to the rotating gear 61; and a synchronization rod 64 for fixing the rack 63 and the piston rod 5642, and an anti-slip pad is provided on the top surface of the landing plate 41.

[0045] Specifically, by setting the synchronization mechanism 6, when the airbag 561 cooperates with the pressure change in the cavity 562, the piston rod 5642 pushes the third electric push rod 42 to move. If each piston rod 5642 slides independently, due to the inconsistent friction between each piston rod 5642 and the piston cylinder 5641, the distances at which multiple piston rods 5642 drive the third electric push rods 42 to separate from the bottom surface of the landing plate 41 will be inconsistent, which will in turn cause the time for multiple third electric push rods 42 to separate from the bottom surface of the landing plate 41 to be inconsistent. When some of the third electric push rods 42 separate from the landing plate 41, and other parts of the third electric push rods 42 do not separate from the bottom surface of the landing plate 41, the landing plate 41 will tilt under the force, which may easily cause damage to the athlete's foot muscles and ligaments. By setting the synchronization mechanism 6, multiple piston rods 5642 can synchronously push the third electric push rods 42 to separate from the bottom surface of the landing plate 41 by rotating the gear 61, thereby solving the problem of damage to the athlete's foot muscles and ligaments caused by the tilt of the landing plate 41.

[0046] The above describes an embodiment of the present embodiment, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can also make many forms, all of which are within the protection of the present embodiment.

Claims

1. A lower limb muscle and ligament strengthening simulator for parachuting training, comprising: The bottom plate (1) is characterized by further comprising: A lifting mechanism (2) arranged above the bottom plate (1) and capable of driving a parachutist to move up and down; A parachuting platform (3) arranged above the base plate (1); A landing platform (4) is arranged above the base plate (1), and athletes can jump from the parachuting platform (3) to the landing platform (4) under the suspension of the lifting mechanism (2); and A protective mechanism (5), the protective mechanism (5) being used to prevent lower limb muscle or ligament damage; Wherein, the protection mechanism (5) comprises: A first protective shell (51) mounted on and attached to the outside of the athlete's thigh; A second protective shell (52) is installed on and attached to the outside of the athlete's calf, and the first protective shell (51) is rotatably connected to the second protective shell (52); A first connecting rod (53) having one end movably connected to the outer wall of the first protective shell (51); A second connecting rod (54) having one end movably connected to the outer wall of the second protective shell (52); and a force component spring (55) arranged between the first connecting rod (53) and the second connecting rod (53).

2. A lower limb muscle and ligament strengthening simulator for parachuting training according to claim 1, characterized in that: The lifting mechanism (2) comprises: A fixed body (21) fixedly mounted on the top surface of the bottom plate (1), wherein a sliding groove (22) is provided on the fixed body (21); A lifting plate (23) slidably arranged in the sliding groove (22); A first electric push rod (24) fixedly mounted on the top surface of the bottom plate (1) and used for driving the lifting plate (23) to move up and down in the sliding groove (22); and A rope (25) fixed to the lifting plate (23) is used to connect athletes.

3. The lower limb muscle and ligament strengthening simulator for parachuting training according to claim 1, characterized in that: The parachuting platform (3) comprises: A second electric push rod (31) fixedly mounted on the top surface of the base plate (1); and A lifting platform (32) is fixedly connected to the output end of the second electric push rod (31).

4. The lower limb muscle and ligament strengthening simulator for parachuting training according to claim 1, characterized in that: The landing platform (4) comprises: a landing plate (41) disposed above the bottom plate (1); and A third electric push rod (42) is arranged between the landing plate (41) and the bottom plate (1).

5. A lower limb muscle and ligament strengthening simulator for parachuting training according to claim 4, characterized in that: The protection mechanism (5) further comprises: an elastic component (56) for controlling the landing plate (41) to float up and down, wherein the elastic component (56) comprises: An airbag (561) disposed between the first connecting rod (53) and the second connecting rod (54), wherein the airbag (561) is located within an annular ring layer of the force component spring (55); A hollow cavity (562) fixedly mounted on the top surface of the base plate (1); A hose (563) for connecting the airbag (561) and the cavity (562); A piston member (564) connected to the cavity body (562), when the airbag (561) is squeezed, the pressure in the cavity body (562) increases, and the piston member (564) pushes the third electric push rod (42) to move; and A shock absorbing spring (565) is arranged between the bottom plate (1) and the drop plate (41), wherein two ends of the shock absorbing spring (565) are respectively fixed to the bottom plate (1) and the drop plate (41).

6. A lower limb muscle and ligament strengthening simulator for parachuting training according to claim 5, characterized in that: The piston member (564) comprises: A piston cylinder (5641) fixedly connected to the side wall of the cavity body (562), wherein the piston cylinder (5641) is in communication with the interior of the cavity body (562); and A piston rod (5642) is slidably disposed inside the piston cylinder (5641), and the piston rod (5642) is capable of pushing the third electric push rod (42) to move.

7. A lower limb muscle and ligament strengthening simulator for parachuting training according to claim 6, characterized in that: The elastic component (56) further comprises a rolling member (566), wherein the rolling member (566) is capable of reducing the friction between the third electric push rod (42) and the bottom plate (1) and the landing plate (41), and the rolling member (566) comprises: Two support blocks (5661) are arranged above and below the third electric push rod (42), and the two support blocks (5661) are respectively fixed to the output end and the base end of the third electric push rod (42); A support plate (5662) is arranged between the upper and lower support blocks (5661), the lower end of the support plate (5662) is fixedly connected to one of the support blocks (5661), the upper end of the support plate (5662) passes through and is slidably connected to the other support block (5661), and the piston rod (5642) can drive the third electric push rod (42) to move by pushing the support plate (5662); and A rotating wheel (5663) is rotatably mounted on the support block (5661), and the support block (5661) can be transmission-connected to the bottom plate (1) or the landing plate (41) via the rotating wheel (5663).

8. A lower limb muscle and ligament strengthening simulator for parachuting training according to claim 7, characterized in that: The elastic component (56) further comprises a reset member (567), wherein the reset member (567) drives the third electric push rod (42) to move, and a movable groove (5671) is provided on the top surface of the base plate (1). The reset member (567) comprises: a reset spring (5672) arranged in the movable groove (5671), and the rotating wheel (5663) is capable of moving in the movable groove (5671), and the two ends of the reset spring (5672) are respectively fixed to the base plate (1) and the support block (5661).

9. The lower limb muscle and ligament strengthening simulator for parachuting training according to claim 6, characterized in that: The invention also comprises a synchronization mechanism (6) arranged on the top surface of the bottom plate (1), wherein the synchronization mechanism (6) is used to enable the multiple piston rods (5642) to move synchronously, and the synchronization mechanism (6) comprises: A rotating gear (61) is sleeved and rotationally connected to the cavity (562); A fixing platform (62) fixedly connected to the top surface of the base plate (1); a rack (63) penetrating through and slidably connected to the fixed platform (62), wherein the rack (63) is meshingly connected to the rotating gear (61); and A synchronization rod (64) is used to fix the rack (63) and the piston rod (5642).

10. The lower limb muscle and ligament strengthening simulator for parachuting training according to claim 4, characterized in that: An anti-slip pad is arranged on the top surface of the landing plate (41).

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