阅读说明：本技术 一种智能化腿部渐变速踩踏康复训练器械 (Intelligent leg gradual change speed treading rehabilitation training instrument ) 是由 宋文颖 荆改丽 李伟宏 柳超 邱晓静 董亚楠 李悦临 高娟 于 2020-12-18 设计创作，主要内容包括：一种智能化腿部渐变速踩踏康复训练器械,包括底座,底座顶部左侧中部安装盒体,底座上右侧有座椅装置,盒体的前后侧壁有第一通孔且第一通孔内有第一转轴,第一转轴连接第一连杆,第一连杆右端连接脚踏板,底座上左侧有弧形缸体,盒体前后侧壁有筒体,弧形缸体的上侧面有第一出液孔,筒体的左侧壁有第一进液孔,筒体的前侧壁左部有固定座,固定座间有第三转轴,第三转轴的上端有旋转把手。本发明通过左右脚的交替踩踏与复位对腿部起到了锻炼效果,减少了做圆周踩踏运动对关节的损伤情况,且针对用户一条腿受伤另一条腿完好的情况对健康的腿与伤腿进行不同程度的阻力训练,且可以根据用户的恢复情况改变阻力的大小,更加适合用户的康复锻炼。(The utility model provides a rehabilitation training apparatus is trampled to intelligent shank gradual change speed, the on-line screen storage device comprises a base, base top left side mid-mounting box body, there is the seat device on the right side on the base, there is first pivot in the lateral wall has first through-hole and first through-hole around the box body, first pivot is connected first connecting rod, the running-board is connected to first connecting rod right-hand member, there is the arc cylinder body on the left side on the base, the lateral wall has the barrel around the box body, there is first liquid hole on the side of going up of arc cylinder body, the left side wall of barrel has first feed liquor hole, there is the fixing base preceding lateral wall left part of barrel, there is the third pivot between the fixing. The leg rehabilitation training device has the advantages that the leg exercise effect is achieved through alternate treading and resetting of the left foot and the right foot, the damage condition of the joint caused by circumferential treading motion is reduced, resistance training of healthy legs and injured legs is performed to different degrees aiming at the condition that one leg of a user is injured and the other leg of the user is good, the resistance can be changed according to the recovery condition of the user, and the leg rehabilitation training device is more suitable for rehabilitation exercise of the user.)

1. The utility model provides an intelligent shank gradual change speed tramples rehabilitation training device which characterized in that: comprises a base (1), a box body (2) is fixedly arranged in the middle of the left side of the top of the base (1) through a support, a seat device is arranged on the right side of the top of the base (1), first through holes are formed in the front side wall and the rear side wall of the box body (2), first rotating shafts (3) are connected in the first through holes through bearings, first bevel gears (4) are fixedly arranged at one ends of the first rotating shafts (3) extending into the box body (2), a second rotating shaft (5) is connected on the inner wall of the left side of the box body (2) through a length-adjustable telescopic device bearing, second bevel gears (6) are arranged at the right ends of the second rotating shafts (5), the second bevel gears (6) and the two first bevel gears (4) can be engaged, a rightward first connecting rod (7) is fixedly connected at one end of the first rotating shaft (3) far away from the box body (2), pedals, arc-shaped cylinder bodies (9) are symmetrically arranged on the front and back of the left side of the top of the base (1), pistons (10) are arranged in the arc-shaped cylinder bodies (9) in a sealing contact manner, the pistons (10) can move along the inner walls of the arc-shaped cylinder bodies (9), the pistons (10) are fixedly connected with pedal plates (8) on the same side of the pistons through arc-shaped connecting rods (11), the pistons (10) are fixedly connected with the inner walls on the left side of the corresponding arc-shaped cylinder bodies (9) through first springs (12), cylinders (13) are symmetrically and fixedly arranged on the front and back side walls of the box body (2), a plurality of first liquid outlet holes (14) are uniformly formed in the upper side surface of each arc-shaped cylinder body (9) from the right side to the left side, first liquid inlet holes (16) are formed in the left side wall of each cylinder (13) from the top to the bottom and correspond to the first liquid outlet holes (14), the first liquid outlet holes (14) from, the outer ends of all the first liquid outlet holes (14) are matched with one-way valves (21), the lower part of the left side wall of the cylinder body (13) is provided with a second liquid inlet hole (18) aligned with the first liquid inlet hole (16), the left end of the arc cylinder body (9) is provided with a second liquid outlet hole (15), the second liquid outlet hole (15) is communicated with the second liquid inlet hole (18) through a second pipeline (20), the top of the first pipeline (17) close to the first liquid inlet hole (16), the bottom of the second pipeline (20) close to the second liquid inlet hole (18) is provided with a guide through hole, a gate (23) is arranged in the guide through hole in a sealing contact and matching manner, the gate (23) can seal the corresponding first pipeline (17) and the corresponding second pipeline (20), the left part of the front side wall of the cylinder body (13) is symmetrically provided with fixing seats (24) up and down, a third rotating shaft (25) is arranged between the two fixing seats (24) on the same vertical line in a, the upper end of a third rotating shaft (25) upwards passes through a corresponding fixed seat (24) and then is fixedly connected with a rotating handle (26), an outer threaded pipe (27) is fixedly sleeved on the outer side of the upper portion of the third rotating shaft (25), a first connecting block (28) with a threaded through hole formed in the middle is connected with the outer side of the outer threaded pipe (27) in a threaded mode, the first connecting block (28) is fixedly connected with a gate (23) corresponding to each first pipeline (17) through a second connecting rod respectively, a second connecting block (29) is sleeved on the outer side of the lower portion of the third rotating shaft (25), the second connecting block (29) can slide up and down along the third rotating shaft (25), the second connecting block (29) is fixedly connected with the gate (23) corresponding to the second pipeline (20) through the third connecting rod, and the first connecting block (28) is connected with the second connecting block (29) through a connecting structure.

2. The intelligent leg gradual speed stepping rehabilitation training device of claim 1, wherein: the seat device comprises a screw rod (30), a first sliding groove (31) is formed in the right side of the top of the base (1), a first sliding block (32) is installed in the first sliding groove (31) in an inner matching mode, a transverse screw rod (30) is connected between the left side wall and the right side wall of the first sliding groove (31) in a bearing mode, the screw rod (30) penetrates through the first sliding block (32) and is in threaded connection with the first sliding block, a right end of the screw rod (30) is fixedly connected with a rocking handle (34), and a telescopic rod (35) which can be locked in length is arranged at the top of the first sliding block (32) and.

3. The intelligent leg gradual speed stepping rehabilitation training device of claim 1, wherein: the connecting structure comprises a second sliding block (37), a vertical second sliding groove (38) is formed in the side wall, far away from the box body, of the barrel body (13), the second sliding block (37) is installed in the second sliding groove (38) in a matched mode, a rectangular block (39) is fixedly connected to one end, far away from the side wall of the box body, of the second sliding block (37), a second through hole (40) arranged in the front-back direction is formed in the left portion of the rectangular block (39), a fourth rotating shaft (41) is connected to the inner bearing of the second through hole (40) in a bearing mode, a first gear (33) is fixedly sleeved at the front end of the fourth rotating shaft (41), a rotating shaft locking device is arranged at the rear end of the fourth rotating shaft (41), the fourth rotating shaft (41) can be locked and loosened by the rotating shaft locking device, first racks (42) are fixedly connected to the bottom of the first connecting block (28) and the top of the second connecting block (29), the two first, the first gear (33) is meshed and matched with the two corresponding first racks (42).

4. The intelligent leg gradual speed stepping rehabilitation training device of claim 3, wherein: the pivot locking means include mount pad (43), the right-hand member fixedly connected with mount pad (43) of fourth pivot (41), screw through-hole and screw through-hole fit in and be connected with hand and twist bolt (44) are seted up along left right direction to mount pad (43), several jack (45) have evenly been seted up to the right side wall of rectangle piece (39) for the center correspond hand and twist bolt (44) annular.

5. The intelligent leg gradual speed stepping rehabilitation training device of claim 1, wherein: the connecting structure is a third connecting rod (46), and the first connecting block (28) is fixedly connected with the second connecting block (29) through the third connecting rod (46).

6. The intelligent leg gradual speed stepping rehabilitation training device of claim 1, wherein: the first rotating shaft (3), the arc-shaped connecting rod (11) and the arc-shaped cylinder body (9) are concentric.

7. The intelligent leg gradual speed stepping rehabilitation training device of claim 1, wherein: the telescopic device comprises an electric telescopic rod (47), the movable rod of the electric telescopic rod (47) is fixedly installed on the inner wall of the left side of the box body (2) and faces towards the right, and the outer end of the movable rod of the electric telescopic rod (47) is connected with a second rotating shaft (5) through a bearing.

8. The intelligent leg gradual speed stepping rehabilitation training device of claim 7, wherein: the outside of second pivot (5) seted up horizontal rectangular keyway (48), the centre bore department of second bevel gear (6) corresponds rectangular keyway (48) fixedly connected with parallel key (49), parallel key (49) can remove about in rectangular keyway (48), the outside cover of second pivot (5) is equipped with second spring (50), second spring (50) are located between the movable rod and the second bevel gear of electric telescopic handle (47).

9. The intelligent leg gradual speed stepping rehabilitation training device of claim 1, wherein: the cross-sectional area of the first liquid inlet hole is equal to that of the second liquid inlet hole.

Technical Field

The invention belongs to the field of leg rehabilitation trampling training devices, and particularly relates to an intelligent leg gradual-change speed trampling rehabilitation training instrument.

Background

The patient is in the recovery process of shank injury, thereby need active to carry out suitable exercise to the shank and accelerate the recovery of shank injury, trample the training because of its interest and good exercise effect be one of the common mode of shank training, and conventional trample the training for example trample the bicycle form, trample at every turn and be a circumference circulation, the joint motion range is great, cause the damage to patient's joint easily, and many patients only have one leg injury, another leg is intact, conventional training equipment is difficult to satisfy the exercise demand of this kind of patient to both legs, the resistance training in-process adopts the spring mostly, can give the strength of a reverse thrust for the shank in the in-process that resets after the spring is compressed, easily shake the patient, and because patient's shank has the injury, the user does not experience pain when pushing the spring compression hard, the spring can promote the motion of suffering from the leg fast when the in-process that the spring resets takes off the power suddenly, therefore, the patient is greatly injured, the weight of the existing exercise equipment is increased by adopting a balancing weight with standard weight, and the weight is too large for one-time weight increase and is not suitable for rehabilitation training of the patient.

Disclosure of Invention

The invention provides an intelligent rehabilitation training device for stepping on legs at a gradual change speed, which is used for overcoming the defects in the prior art.

The invention is realized by the following technical scheme:

an intelligent rehabilitation training device for treading legs at gradually changing speeds comprises a base, a box body is fixedly installed in the middle of the left side of the top of the base through a support, a seat device is installed on the right side of the top of the base, first through holes are formed in the front side wall and the rear side wall of the box body, first rotating shafts are connected in the first through holes in a bearing mode, first bevel gears are fixedly installed at the ends, extending into the box body, of the first rotating shafts, a second rotating shaft is connected to the inner wall of the left side of the box body through a length-adjustable telescopic device in a bearing mode, second bevel gears are installed at the right end of the second rotating shaft and can be meshed with the two first bevel gears in a matched mode, a right first connecting rod is fixedly connected to one end, far away from the box body, of the first rotating shaft, the right end of the first connecting rod is fixedly connected with a pedal, all through arc connecting rod fixed connection between the running-board of piston rather than homonymy, through first spring fixed connection between the left side inner wall of piston and corresponding arc cylinder body, lateral wall symmetry fixed mounting barrel around the box body, the first play liquid hole of several has evenly been seted up to the last side of arc cylinder body from the right side down left, the first liquid hole has been seted up one by one from last first play liquid hole that down corresponds of left side wall of barrel, the first play liquid hole that down turns left from the right side is linked together through first pipeline respectively with the first feed liquid hole that down from the last, the check valve is all installed in cooperation in the outer end of all first play liquid holes, the second feed liquid hole has all been seted up to the left side wall lower part of barrel and has been aligned with first feed liquid hole, the second play liquid hole has been seted up to the left end of arc cylinder body, through second goes out liquid hole and second pipeline intercommunication between liquid hole, be close to the top of first pipeline in first feed liquid hole, the bottom of second pipeline that is close to second feed liquid hole has The gate, the gate can be with the first pipeline that corresponds, the second pipeline is sealed, the equal longitudinal symmetry in preceding lateral wall left part of barrel installs the fixing base, bearing is connected with the third pivot between two fixing bases that are located same vertical line, the upper end of third pivot upwards passes corresponding fixing base back fixedly connected with rotation handle, the fixed suit external screw thread pipe in the upper portion outside of third pivot, the first connecting block of screw through-hole is seted up at external screw thread pipe's outside threaded connection middle part, first connecting block is respectively through the gate fixed connection that second connecting rod and each first pipeline correspond, the lower part outside cover of third pivot is equipped with the second connecting block, the second connecting block can slide from top to bottom along the third pivot, the gate fixed connection that the second connecting block corresponds through third connecting rod and second pipeline, link to each other through connection structure between first connecting block and the second connecting block.

As above-mentioned rehabilitation training device is trampled to intelligent shank gradual change speed, the seat device include the screw rod, first spout is seted up on the top right side of base, first spout fit in installs first slider, the bearing is connected with horizontal screw rod between the lateral wall about first spout, the screw rod pass first slider and rather than threaded connection, the right-hand member fixed connection rocking handle of screw rod, the telescopic link fixedly connected with bedplate that length can be locked is passed through at the top of first slider.

As above an intelligent shank gradual change speed tramples rehabilitation training device, connection structure include the second slider, the barrel is kept away from the lateral wall of box body and is seted up vertical second spout, second spout fit in installation second slider, the one end fixedly connected with rectangular block of box body lateral wall is kept away from to the second slider, the second through-hole that sets up along the fore-and-aft direction is seted up to the left part of rectangular block, the bearing is connected with the fourth pivot in the second through-hole, the fixed suit first gear of front end of fourth pivot, the rear end of fourth pivot is equipped with pivot locking means, pivot locking means can lock the fourth pivot with loosen, the bottom of first connecting block and the equal fixedly connected with first rack in top of second connecting block, two first racks are located the front and back both sides that correspond first gear respectively, first gear cooperates with two first rack meshes that correspond.

As above-mentioned rehabilitation training device is trampled to intelligent shank gradual change speed, pivot locking means include the mount pad, the right-hand member fixedly connected with mount pad of fourth pivot, the mount pad is seted up screw thread through-hole and screw thread through-hole fit in along left and right sides direction and is connected with the hand and twist the bolt, the right side wall of rectangular block uses the second through-hole as the center to correspond hand and twist the bolt annular and evenly seted up the several jack.

According to the intelligent leg gradual-change speed treading rehabilitation training device, the connecting structure is the third connecting rod, and the first connecting block is fixedly connected with the second connecting block through the third connecting rod.

According to the intelligent leg gradual-change speed treading rehabilitation training device, the first rotating shaft, the arc-shaped connecting rod and the arc-shaped cylinder body are concentric.

As above-mentioned rehabilitation training device is trampled to intelligent shank gradual change speed, telescoping device include electric telescopic handle, the electric telescopic handle of the left side inner wall fixed mounting movable rod of box body towards the right side, electric telescopic handle's movable rod outer end and second pivot bearing are connected.

As above an intelligent shank gradual change speed trample rehabilitation training device, the outside of second pivot seted up horizontal rectangular keyway, the centre bore department of second bevel gear corresponds rectangular keyway fixedly connected with parallel key, the parallel key can control the removal in rectangular keyway, the outside cover of second pivot is equipped with the second spring, the second spring is located between electric telescopic handle's movable rod and the second bevel gear.

According to the intelligent leg gradual-change speed treading rehabilitation training device, the cross-sectional area of the first liquid inlet hole is equal to that of the second liquid inlet hole.

The invention has the advantages that: when a user needs to perform auxiliary training on an affected leg through a healthy leg for a single leg injury, the healthy leg can use a large amount of force and the affected leg can use a small amount of force, so that the rotating handles on the front side and the rear side can be respectively screwed, for example, the affected leg is positioned on the front side, and the healthy leg is positioned on the rear side, the rotating handle on the front side is rotated clockwise to drive the third rotating shaft to rotate, the first connecting block drives the second connecting block and the gate to move upwards, the opening of the first liquid inlet hole corresponding to the first pipeline is increased, the opening of the second liquid inlet hole corresponding to the second pipeline is decreased (as shown in figure 3), and the number of the first liquid inlet holes is multiple, so that the liquid outlet speed in the arc-shaped cylinder body is increased, and the amount of force needed by treading on the pedal is decreased (the pedal is used by the affected leg of the user), the rotating handle at the rear side is rotated anticlockwise, the liquid outlet speed in the arc cylinder body corresponding to the rotating handle is reduced, the force required by stepping on the pedal downwards is increased (the pedal is used by healthy legs of a user), so that two legs of the user can do resistance training with different degrees, after the opening and closing degree of the gate is adjusted according to the recovery condition of injured legs of the user, the user sits on the upper side of the seat device, two feet are respectively positioned on the upper sides of the pedals, the user completely steps on the rear side pedal downwards by the legs, the pedal drives the first bevel gear to rotate through the first rotating shaft, the first bevel gear drives the first rotating shaft at the front side to rotate reversely through the meshing transmission of the bevel gear so that the injured legs move upwards, when the user steps on the pedal downwards, the piston is pushed to move in the arc cylinder body at the rear side through the arc connecting rod to compress the first spring at the rear side, the liquid in the arc cylinder body is extruded into the rear side cylinder body from the first liquid outlet hole at the, the first rotating shaft at the front side is driven by the bevel gear to rotate reversely, so that the front pedal moves upwards to stretch the first spring at the front side, liquid in the cylinder at the front side enters the arc cylinder at the front side through the matching of the corresponding second liquid inlet hole and the second liquid outlet hole, and the first liquid outlet hole at the rear side is blocked continuously along with the continuous movement of the piston at the rear side, so that the liquid outlet speed in the arc cylinder at the rear side is gradually reduced, the resistance on the leg of a patient is increased, the movement speed is also gradually reduced, the exercise effect of gradually increasing the resistance is achieved, the back healthy leg of the user can release the stepping-down on the pedal, the injured leg at the front side can step down, the opening of the liquid outlet hole at the front side corresponding to the injured leg is large, the resistance is low due to the high liquid outlet speed, the downward movement can be easier, and when the injured leg suddenly takes off force due to the causes of pain and the like, the compressed first spring can only slowly reset due to the hydraulic, the device has the advantages that the device has a protection effect on a patient, has a rehabilitation exercise effect on legs by alternately treading the legs forwards and backwards, can wait for the first spring to drive the piston and the pedal to slowly recover to the original position when the injured legs cannot exert force, and then continues to tread the injured legs to perform auxiliary training on the injured legs; the invention has simple structure and ingenious design, has exercise effect on legs through alternate treading and resetting of the left foot and the right foot, reduces the damage condition of circumferential treading motion to joints, carries out resistance training of different degrees on healthy legs and injured legs aiming at the condition that one leg of a user is injured and the other leg is intact, can change the resistance according to the recovery condition of the user, is more suitable for the rehabilitation exercise of the user, simultaneously gradually increases the closed liquid outlet holes through the left movement of the piston, further increases the resistance, has better resistance training effect, sequentially corresponds to the liquid inlet holes from top to bottom from the right to the left, has small difficulty in liquid outlet because the liquid inlet hole at the uppermost side is not subjected to the liquid resistance in the cylinder, also leads the process of the left movement of the piston to be a process of gradually increasing the resistance, and controls the resistance by changing the cross section area of the pipeline, the resistance can basically realize stepless weight change, and the counterweight has better application prospect compared with a counterweight with standard mass.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic view of the C-direction partial structure of FIG. 1; FIG. 3 is an enlarged view of the A-direction partial structure of FIG. 1; FIG. 4 is an enlarged view of I of FIG. 1; FIG. 5 is an enlarged view of II of FIG. 2; FIG. 6 is an embodiment of the present invention; FIG. 7 is an enlarged view of III of FIG. 6; fig. 8 is an enlarged view of the B-direction structural diagram of fig. 7.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An intelligent leg gradual speed stepping rehabilitation training device comprises a base 1, a box body 2 is fixedly installed in the middle of the left side of the top of the base 1 through a support, a seat device is installed on the right side of the top of the base 1, first through holes are formed in the front side wall and the rear side wall of the box body 2, first rotating shafts 3 are connected in a bearing mode in the first through holes, first bevel gears 4 are fixedly installed at one ends, extending into the box body 2, of the first rotating shafts 3, a second rotating shaft 5 is connected to the inner wall of the left side of the box body 2 through a length-adjustable telescopic device bearing, a second bevel gear 6 is installed at the right end of the second rotating shaft 5, the second bevel gear 6 and the two first bevel gears 4 can be meshed and matched, a rightward first connecting rod 7 is fixedly connected to one end, far away from the box body 2, of the first connecting rod 7 is fixedly connected to a pedal 8, arc, the arc cylinder 9 is internally matched with a piston 10 in a sealing contact manner, the piston 10 can move along the inner wall of the arc cylinder 9, the piston 10 and the pedal 8 on the same side are fixedly connected through an arc connecting rod 11, the piston 10 and the left inner wall of the corresponding arc cylinder 9 are fixedly connected through a first spring 12, the front side wall and the rear side wall of the box body 2 are symmetrically and fixedly provided with cylinder bodies 13, the upper side surface of the arc cylinder 9 is uniformly provided with a plurality of first liquid outlet holes 14 from right to left, the left side wall of the cylinder body 13 is provided with first liquid inlet holes 16 corresponding to the first liquid outlet holes 14 from top to bottom one by one, the first liquid outlet holes 14 from right to left and the first liquid inlet holes 16 from top to bottom are respectively communicated through first pipelines 17, the outer ends of all the first liquid outlet holes 14 are matched with check valves 21, the lower part of the left side wall of the cylinder body 13 is provided with second liquid inlet holes 18 aligned with the first liquid inlet holes 16, the left end, the second liquid outlet hole 15 is communicated with the second liquid inlet hole 18 through a second pipeline 20, the top of the first pipeline 17 close to the first liquid inlet hole 16 and the bottom of the second pipeline 20 close to the second liquid inlet hole 18 are both provided with guide through holes, the guide through holes are internally provided with a gate 23 in a sealing contact matching manner, the gate 23 can seal the corresponding first pipeline 17 and the second pipeline 20, the left part of the front side wall of the cylinder body 13 is vertically and symmetrically provided with fixed seats 24, a third rotating shaft 25 is connected between the two fixed seats 24 positioned on the same vertical line in a bearing manner, the upper end of the third rotating shaft 25 upwards penetrates through the corresponding fixed seats 24 and is fixedly connected with a rotating handle 26, the outer side of the upper part of the third rotating shaft 25 is fixedly sleeved with an external threaded pipe 27, the outer side of the external threaded pipe 27 is in threaded connection with a first connecting block 28 with a threaded through hole in the middle part, the first connecting block 28 is respectively and fixedly connected with the gate 23 corresponding to each first, the outer side of the lower part of the third rotating shaft 25 is sleeved with a second connecting block 29, the second connecting block 29 can slide up and down along the third rotating shaft 25, the second connecting block 29 is fixedly connected with the gate 23 corresponding to the second pipeline 20 through a third connecting rod, and the first connecting block 28 is connected with the second connecting block 29 through a connecting structure. The arc cylinder 9 is filled with liquid, part of liquid is stored in the cylinder 13, the gate 23 blocks half of the corresponding pipeline at the initial position, when a user needs to perform assistant training on an affected leg through a healthy leg for single leg injury, the healthy leg can use more strength and less strength for leg injury, so that the rotating handles 26 at the front side and the rear side can be respectively screwed, for example, the injured leg is positioned at the front side, when the healthy leg is positioned at the rear side, the rotating handle 26 at the front side is rotated clockwise to drive the third rotating shaft 25 to rotate, the first connecting block 28 drives the second connecting block 29 and the gate 23 to move upwards, the opening of the first liquid inlet hole corresponding to the first pipeline is increased, the opening of the second liquid inlet hole corresponding to the second pipeline is decreased (as shown in figure 3), and the plurality of liquid inlet holes are arranged in the first liquid inlet hole, so that the liquid outlet speed in the arc cylinder is increased, and the strength needed by treading the pedal plate for leg injury of the user is decreased, the rotating handle 26 at the rear side is rotated anticlockwise, the liquid outlet speed in the arc-shaped cylinder body corresponding to the rotating handle is reduced, the force required by stepping on the pedal downwards is increased (the pedal is used by healthy legs of a user), so that two legs of the user can do resistance training with different degrees, after the opening and closing degree of the gate is adjusted according to the recovery condition of injured legs of the user, the user sits on the upper side of the seat device, two feet are respectively positioned on the upper sides of the pedals 8, the user completely steps on the pedal at the rear side under the legs, the pedal drives the first bevel gear 4 to rotate through the first rotating shaft 3, the first bevel gear drives the first rotating shaft 3 at the front side to reversely rotate through the meshing transmission of the bevel gears, so that the injured legs move upwards, and when the user steps on the pedal 8 downwards, the piston 10 is pushed through the arc-shaped connecting rod 11 to move in the arc-shaped cylinder body at the rear, the liquid in the arc cylinder body is extruded into the rear cylinder body 13 from the rear first liquid outlet hole and the rear second liquid outlet hole, the front first rotating shaft 3 is driven by the bevel gear to rotate reversely so that the front pedal 8 moves upwards to stretch the front first spring, the liquid in the front cylinder body 13 enters the front arc cylinder body through the matching of the corresponding second liquid inlet hole and the corresponding second liquid outlet hole, and the rear first liquid outlet hole is blocked continuously along with the continuous movement of the rear piston, so the liquid outlet speed in the rear arc cylinder body is gradually reduced, the movement speed is gradually reduced when the leg of the patient is subjected to higher resistance, and the exercise effect of gradually increasing resistance is achieved, at the moment, the downward stepping on the pedal can be relieved by the rear healthy leg of the user, the wounded leg at the front side faces downwards, and the liquid outlet hole opening at the front side corresponding to the wounded leg is larger, so the liquid outlet speed is smaller, the lower stepping can be easily performed, when the injured leg suddenly loses force due to reasons such as pain, the compressed first spring can only be slowly reset due to a hydraulic effect, so that a protection effect is achieved for a patient, a rehabilitation exercise effect for the leg is achieved by alternately stepping front and back, meanwhile, when the injured leg cannot exert force, the first spring can wait for the piston 10 and the pedal plate to be slowly restored to the original position, and then the healthy leg is continuously stepped to perform auxiliary training of the injured leg; the invention has simple structure and ingenious design, has exercise effect on legs through alternate treading and resetting of the left foot and the right foot, reduces the damage condition of circumferential treading motion to joints, carries out resistance training of different degrees on healthy legs and injured legs aiming at the condition that one leg of a user is injured and the other leg is intact, can change the resistance according to the recovery condition of the user, is more suitable for the rehabilitation exercise of the user, simultaneously gradually increases the closed liquid outlet holes through the left movement of the piston, further increases the resistance, has better resistance training effect, sequentially corresponds to the liquid inlet holes from top to bottom from the right to the left, has small difficulty in liquid outlet because the liquid inlet hole at the uppermost side is not subjected to the liquid resistance in the cylinder, also leads the process of the left movement of the piston to be a process of gradually increasing the resistance, and controls the resistance by changing the cross section area of the pipeline, the resistance can basically realize stepless weight change, and the counterweight has better application prospect compared with a counterweight with standard mass.

Specifically, as shown in the drawings, the seat device according to the present embodiment includes a screw 30, a first sliding groove 31 is formed in the right side of the top of the base 1, a first sliding block 32 is installed in the first sliding groove 31 in an inner fit manner, a transverse screw 30 is connected between the left side wall and the right side wall of the first sliding groove 31 in a bearing manner, the screw 30 passes through the first sliding block 32 and is in threaded connection with the first sliding block, the right end of the screw 30 is fixedly connected with a rocking handle 34, and a seat plate 36 is fixedly connected to the top of the first sliding block 32 through a telescopic. The height of the seat board 36 can be controlled through the telescopic rod 35, and the left and right movement of the seat board can be controlled through the rocking handle 34, so that the device is suitable for users with various heights to use the device for exercise.

Specifically, as shown in fig. 6, the connection structure described in this embodiment includes the second slider 37, the vertical second chute 38 has been seted up to the lateral wall that the box body was kept away from to the barrel 13, second slider 37 is installed to second chute 38 fit-in, the one end fixedly connected with rectangular block 39 that the box body lateral wall was kept away from to the second slider 37, the second through-hole 40 that sets up along the fore-and-aft direction is seted up to the left part of rectangular block 39, second through-hole 40 inner bearing is connected with fourth pivot 41, the first gear 33 of fixed suit in front end of fourth pivot 41, the rear end of fourth pivot 41 is equipped with pivot locking means, pivot locking means can lock and loosen fourth pivot 41, the bottom of first connecting block 28 and the equal fixedly connected with first rack 42 in top of second connecting block 29, two first rack 42 are located the front and back both sides that correspond first gear 33 respectively, first gear 33 meshes with two first rack 42 that correspond and cooperates. When a user needs to control the aperture change of the openings of the first pipeline and the second pipeline to be opposite, the rotating shaft locking device locks the fourth rotating shaft 41, and the fourth rotating shaft 41 and the first gear 33 cannot rotate, so that the first connecting block 28 can drive the second connecting block 29 to move up and down simultaneously when moving up and down; when the opening of the first pipeline and the second pipeline needs to be controlled by a user to be simultaneously increased to enable the user to drive the other injured foot to move through the uninjured foot, the rotating shaft locking device loosens the fourth rotating shaft 41 to enable the fourth rotating shaft and the first gear 33 to rotate, when the first connecting block 28 moves upwards to enlarge the opening of the first pipeline 17, the first connecting block 28 enables the second connecting block 29 to move downwards to enlarge the opening of the second pipeline 20 through the structure of the gear and the rack, so that the user can press the foot pedal more easily, the injured leg is driven by the uninjured leg to move and stretch more easily, and the device is also suitable for the user to continue to use under the condition of complete recovery.

Further, as shown in the figure, the rotating shaft locking device described in this embodiment includes the mounting seat 43, the right end fixedly connected with mounting seat 43 of the fourth rotating shaft 41, the mounting seat 43 is provided with a threaded through hole along the left-right direction and is connected with the hand-screwed bolt 44 in the threaded through hole in a matching manner, and the right side wall of the rectangular block 39 uses the second through hole 40 as the center to correspond to the hand-screwed bolt 44 and has a plurality of insertion holes 45 uniformly arranged in an annular manner. When a user needs to lock the fourth rotating shaft, the hand-screwed bolt 44 is screwed and inserted into the insertion hole 45, so that the fourth rotating shaft cannot rotate, and when the fourth rotating shaft needs to be loosened, the hand-screwed bolt 44 is screwed out of the insertion hole 45, so that the fourth rotating shaft can normally rotate.

Further, as shown in fig. 3, the connection structure of the present embodiment is a third link 46, and the first connection block 28 and the second connection block 29 are fixedly connected through the third link 46. The first connecting block and the second connecting block are fixedly connected through a third connecting rod, so that the first connecting block 28 can be stably driven to move up and down synchronously in the vertical direction, and the opening size of the first pipeline and the opening size of the second pipeline can be controlled.

Further, as shown in the figure, the first rotating shaft 3, the arc connecting rod 11 and the arc cylinder 9 are concentric. The first rotating shaft 3, the arc connecting rod 11 and the arc cylinder 9 are concentric, so that the arc connecting rod 11 can push the piston to move in the arc cylinder 9 better.

Furthermore, as shown in the figure, the telescopic device of the present embodiment includes an electric telescopic rod 47, the electric telescopic rod 47 with a movable rod facing to the right is fixedly installed on the inner wall of the left side of the box body 2, and the outer end of the movable rod of the electric telescopic rod 47 is connected with the second rotating shaft 5 through a bearing. Carry out the meshing and separating between the first bevel gear of direction and the second bevel gear of left and right sides's removal regulation control through the electric telescopic handle movable rod, during first bevel gear and the transmission of second bevel gear meshing, user's accessible one leg drives another leg and carries out the activity tensile, when first bevel gear and second bevel gear separate, the user can carry out simultaneously and step on downwards or step on one and step on multiple exercise mode such as one by one, and the degree that the pressure of stepping on down of two running-boards can be adjusted through the control gate closure respectively, thereby be fit for user's exercise demand.

Furthermore, as shown in the figure, in the embodiment, the outer side of the second rotating shaft 5 is provided with a transverse strip key groove 48, the central hole of the second bevel gear 6 corresponds to a flat key 49 fixedly connected to the strip key groove 48, the flat key 49 can move left and right in the strip key groove 48, the outer side of the second rotating shaft 5 is sleeved with a second spring 50, and the second spring 50 is located between the movable rod of the electric telescopic rod 47 and the second bevel gear. The second bevel gear can move left and right under the cooperation of flat key and keyway, and the second bevel gear extrusion is difficult for making the gear impaired with first bevel gear through the second spring is carried out the cooperation simultaneously.

Furthermore, as shown in the figure, the cross-sectional area of the first liquid inlet hole is equal to that of the second liquid inlet hole. The cross-sectional area of the first liquid inlet hole is equal to that of the second liquid inlet hole, so that the resistance force applied to the piston is mainly determined by the cross-sectional area of the first liquid inlet hole.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.