CN112138336B

CN112138336B - Be applied to recovered medical instrument of orthopedics of shank

Info

Publication number: CN112138336B
Application number: CN202011015544.7A
Authority: CN
Inventors: 覃肖欢; 翁观送
Original assignee: Individual
Current assignee: Qin Xiaohuan
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2022-01-04
Anticipated expiration: 2040-09-24
Also published as: CN112138336A

Abstract

The invention relates to an orthopedic rehabilitation medical instrument applied to legs, which comprises a human body supporting seat and a leg orthopedic rehabilitation device matched with the human body supporting seat; the recovered device of shank orthopedics includes: the leg force applying mechanism comprises a support frame, a leg force applying mechanism and a force adjusting mechanism, wherein the force adjusting mechanism is arranged on the support frame; dynamics adjustment mechanism includes: the device comprises a rotating connecting rod, a rotating drum, a thread rope and a force adjusting piece, wherein the rotating connecting rod is rotatably arranged on a supporting frame, and the rotating drum is sleeved on the outer wall of the rotating connecting rod; the drum comprises a thick drum end and a thin drum end; one end of the cord is fixed with the thin cylinder end, and the cord is wound on the thin cylinder end, the warp winding leg force application mechanism and the thick cylinder end in sequence in multiple turns, and then the other end of the cord is connected with the force adjusting piece. The orthopedic rehabilitation medical instrument applied to the legs, disclosed by the invention, enables a rehabilitee to use the orthopedic rehabilitation medical instrument to carry out rehabilitation treatment in a sitting posture, and is simple to operate and convenient to use.

Description

Be applied to recovered medical instrument of orthopedics of shank

Technical Field

The invention relates to the field of orthopedic rehabilitation medical instruments, in particular to an orthopedic rehabilitation medical instrument applied to legs.

Background

After the human body is injured, targeted rehabilitation treatment is needed. Rehabilitation is often a lengthy process. Especially, when the bones and muscles of the human body are damaged, for example: tendon ligament injury, muscle soft tissue injury, bone injury (e.g., bone fracture), etc., then the recovery time required is relatively long.

When a human body is seriously damaged, the human body cannot stand or walk for a long time and only lies or sits for a long time. The existing orthopedic rehabilitation medical instrument can only be used in a standing and walking state, so that the legs of a patient who cannot stand or walk cannot be effectively and timely subjected to auxiliary rehabilitation treatment by the orthopedic rehabilitation medical instrument. For patients, local soft tissue adhesion is easy to generate due to long-time leg braking, and even the problems of joint movement limitation, muscle atrophy and the like occur in the later period. For patients who cannot stand or walk, the existing rehabilitation therapy method mainly adopts passive therapy modes such as massage and the like, the effect of the passive therapy mode is very limited, and the recovery is very slow.

Therefore, even if the patient can not stand or walk, the rehabilitation therapy is required to be carried out in time through the orthopedic rehabilitation medical instrument so as to accelerate the recovery of the injured part.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides the orthopedic rehabilitation medical instrument applied to the legs, and a rehabilitee can use the orthopedic rehabilitation medical instrument to perform rehabilitation treatment in a sitting posture, so that the orthopedic rehabilitation medical instrument is simple to operate and convenient to use.

The purpose of the invention is realized by the following technical scheme:

the orthopedic rehabilitation medical instrument applied to the legs comprises a human body supporting seat and a leg orthopedic rehabilitation device matched with the human body supporting seat; the recovered device of shank orthopedics includes: the leg force applying mechanism comprises a support frame, a leg force applying mechanism and a force adjusting mechanism, wherein the force adjusting mechanism is arranged on the support frame;

dynamics adjustment mechanism includes: the device comprises a rotating connecting rod, a rotating drum, a thread rope and a force adjusting piece, wherein the rotating connecting rod is rotatably arranged on a supporting frame, and the rotating drum is sleeved on the outer wall of the rotating connecting rod; the drum comprises a thick drum end and a thin drum end; one end of the cord is fixed with the thin cylinder end, and the cord is wound on the thin cylinder end, wound on the leg force application mechanism and wound on the thick cylinder end in turn in multiple turns, and then the other end of the cord is connected with the force adjusting piece;

the leg force application mechanism includes: the gravity disc is connected with the force application connecting rod; the bearing is sleeved on the force application connecting rod, and the wire rope winds through an outer ring of the bearing.

In one embodiment, the force adjusting mechanism further comprises a fixed connecting rod and a guide wheel, the fixed connecting rod is arranged on the supporting frame, and the guide wheel is sleeved on the fixed connecting rod; the other end of the rope is wound around the guide wheel and then is connected with the force adjusting piece.

In one embodiment, the guide wheel is rotatably sleeved on the fixed connecting rod.

In one embodiment, the leg force application mechanism further comprises a protection sliding block, the protection sliding block is sleeved outside the bearing, and the protection sliding block is arranged on the support frame in a sliding mode.

In one embodiment, the support frame is provided with a sliding groove, and the protective sliding block is slidably clamped in the sliding groove.

In one embodiment, the gravity disc is provided in a plurality, and the gravity discs are equally distributed at two ends of the force application connecting rod.

In one embodiment, the force adjustment member comprises a plurality of mutually detachable gravity columns.

In one embodiment, the number of the drum, the cord and the force-adjusting member is two, and the drum, the cord and the force-adjusting member correspond to one another.

In one embodiment, the leg orthopedic rehabilitation device further comprises a protective box fixed on the supporting frame; the rotating connecting rod, the rotating drum, the fixed connecting rod and the guide wheel are all accommodated in the protective box; and the rotating connecting rod is rotatably connected with the protection box, and the fixed connecting rod is fixedly connected with the protection box.

According to the orthopedic rehabilitation medical instrument applied to the legs, a rehabilitee carries out rehabilitation treatment by using the orthopedic rehabilitation medical instrument in a sitting posture, and the orthopedic rehabilitation medical instrument is simple to operate and convenient to use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a structural schematic diagram (one) of the orthopedic rehabilitation medical device applied to legs;

fig. 2 is a structural schematic diagram (two) of the orthopedic rehabilitation medical device applied to the leg part of the invention;

fig. 3 is a partial structural schematic view of the orthopedic leg rehabilitation device shown in fig. 1;

FIG. 4 is a partial schematic view (one) of FIG. 3;

FIG. 5 is a partial schematic view (II) of FIG. 3;

FIG. 6 is a schematic view of a portion of the structure of FIG. 4;

FIG. 7 is a schematic view of the overspeed warning mechanism of the present invention in an overspeed locked condition when the leg is raised;

FIG. 8 is a schematic view of the overspeed warning mechanism of FIG. 7 in an unlocked state;

FIG. 9 is a schematic view of the overspeed warning mechanism of the present invention in an overspeed locked condition with the legs down;

fig. 10 is a schematic view of the overspeed warning mechanism shown in fig. 9 in an unlocked state.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, the present invention discloses an orthopedic rehabilitation medical device 10 applied to legs, which comprises a human body support 20 and a leg orthopedic rehabilitation apparatus 30 matched with the human body support 20. The leg bone rehabilitation device 30 includes: the leg force applying mechanism comprises a support frame 40, a leg force applying mechanism 50 and a force adjusting mechanism 60, wherein the force adjusting mechanism 60 is arranged on the support frame 40.

As shown in fig. 3, 4 and 5, the force adjusting mechanism 60 specifically includes: the rotary connecting rod 610, the rotary drum 620, the rope 630 and the force adjusting part 640, wherein the rotary connecting rod 610 is rotatably arranged on the support frame 40, and the rotary drum 620 is sleeved on the outer wall of the rotary connecting rod 610. The drum 620 includes a thick drum end 621 and a thin drum end 622. One end of the wire 630 is fixed to the thin cylinder end 622, and the wire 630 is wound around the thin cylinder end 622, the leg force application mechanism 50, and the thick cylinder end 621 in turns in multiple turns, and then the other end is connected to the force adjusting member 640.

As shown in fig. 2 and 3, specifically, the leg-urging mechanism 50 includes: force application link 510, bearing 520, and gravity plate 530, gravity plate 530 being connected to force application link 510. Bearing 520 is sleeved on force application link 510, and wire 630 is wound around the outer race of bearing 520.

As shown in fig. 3 and 4, the force adjusting mechanism 60 further includes a fixed link 650 and a guide wheel 660, the fixed link 650 is disposed on the supporting frame 40, and the guide wheel 660 is sleeved on the fixed link 650. The other end of the wire 630 is wound around the guide wheel 660 and then connected to the force adjusting member 640. In a preferred embodiment, the guide wheel 660 is rotatably fitted over the fixed link 650, so that when the wire 630 slides along the guide wheel 660, the wire 630 is less resistant to the guide wheel 660.

As shown in fig. 3, specifically, the leg force applying mechanism 50 further includes a protective slider 540, the protective slider 540 is sleeved outside the bearing 520, and the protective slider 540 is slidably disposed on the supporting frame 40. The supporting frame 40 is provided with a sliding groove 401, and the protective slider 540 is slidably clamped in the sliding groove 401. The protective slider 540 is sleeved outside the bearing 520, and the protective slider 540 is slidably clamped in the sliding groove 401; thereby, the slide groove 401 limits the urging link 510, and the leg urging mechanism 50 slides up and down in the opening direction of the slide groove 401 without wobbling or shifting.

Specifically, as shown in fig. 3, the number of the gravity plates 530 is plural, and the plural gravity plates 530 are equally divided at both ends of the force application link 510. The gravity plate 530 may be a solid iron plate.

As shown in fig. 3, in particular, the force-adjusting member 640 includes a plurality of gravity posts 641 which are detachable from each other. In a specific implementation, the number of the gravity pillars 641 can be adjusted according to the intensity required by the actual exercise, so as to adapt to rehabilitation treatments with different intensities. For example, the rehabilitee may have poor physical conditions in the early stage of rehabilitation, and the strength of rehabilitation is low, and the number of the gravity pillars 641 of the force adjustment member 640 is large. As the rehabilitee's body is continuously restored, the strength of the rehabilitation therapy required can be increased accordingly, and the number of the gravity columns 641 of the force adjusting member 640 can be reduced appropriately.

As shown in fig. 1, specifically, the number of the drum 620, the cord 630 and the force-adjusting member 640 is two, and the drum 620, the cord 630 and the force-adjusting member 640 correspond to one another.

As shown in fig. 1 and 3, in particular, the leg orthopaedic rehabilitation apparatus 30 further includes a protection box 70, and the protection box 70 is fixed on the support frame 40. The rotating link 610, the drum 620, the fixed link 650, and the guide wheel 660 are accommodated in the shield case 70. The rotating link 610 is rotatably connected to the protection box 70, and the fixed link 650 is fixedly connected to the protection box 70.

The working principle of the orthopedic rehabilitation medical device 10 applied to the leg is as follows (please refer to fig. 1 to 5 together):

when rehabilitation treatment is carried out, a rehabilitee sits on the human body supporting seat 20; the leg orthopedic rehabilitation device 30 is arranged right in front of the human body supporting seat 20, and when a rehabilitee sits on the human body supporting seat 20, the leg extends to the lower part of the force application connecting rod 510; then slowly raising the legs to make the legs slowly raise the leg force application mechanism 50; when the legs are lifted to a certain height, the legs are slowly lowered, and at the moment, the leg force application mechanism 50 slowly descends along with the legs; during both raising and lowering of the legs, the legs need to oppose the weight of the leg forcing mechanism 50; the rehabilitee can slowly lift and lower the legs repeatedly to achieve the aim of rehabilitating and treating the legs;

it should be noted that, before the rehabilitation therapy is started, the number of the gravity columns 641 is adjusted according to the required rehabilitation therapy intensity; when the number of the gravity columns 641 is adjusted, the orthopedic rehabilitation medical device 10 applied to the leg is in a static balance state;

when the leg of the rehabilitee is slowly lifted and is in contact with the force application link 510, the leg force application mechanism 50 is slowly lifted; as the leg urging mechanism 50 is lifted, the drum 620 rotates clockwise (as shown in fig. 7) by the pulling force of the force adjusting member 640; at this time, one end of the wire 630 connected with the force adjusting member 640 is in an unwinding state, that is, the force adjusting member 640 moves downward; in addition, the middle of the wire 630 is in a winding state on the side wound on the thick-tube end 621 (as shown by a1 in fig. 3), and is in an unwinding state on the side wound on the thin-tube end 622 (as shown by a2 in fig. 3);

when the leg of the rehabilitee is lifted to a certain height and then starts to be slowly lowered, the leg force application mechanism 50 moves downwards slowly along with the leg; in this process, the drum 620 rotates counterclockwise (as shown in fig. 9) by the pulling force of the leg urging mechanism 50; this is because, during the downward movement of the leg portion urging mechanism 50, the moment of the thick cylinder end 621 is greater than the moment of the thin cylinder end 622, so that the drum 620 rotates counterclockwise (as shown in fig. 9) in the process; at this time, one end of the wire 630 connected with the force adjusting member 640 is in a rolling state, that is, the force adjusting member 640 moves upwards; further, the middle portion of the cord 630 is in an unwinding state at the side wound around the thick-cylindrical end 621 (as shown by a1 in fig. 3), and in a winding state at the side wound around the thin-cylindrical end 622 (as shown by a2 in fig. 3).

The rehabilitation therapy for the muscles and bones of the legs needs uniform and continuous exertion to have better effect. In the process of rehabilitation treatment, if the speed of a rehabilitee in the processes of lifting and putting legs is too high, the rehabilitation effect is not ideal and the rehabilitation speed is slow. In order to remind the rehabilitee to slowly lift up and slowly lower down in the process of lifting up and lowering down the legs, so as to ensure that the rehabilitation therapy of the rehabilitee can achieve better effect; the orthopedic leg rehabilitation device 30 of the present invention is further provided with an overspeed warning mechanism 80 for locking the leg force application mechanism 50 when the lifting speed of the leg of the rehabilitee is too fast and the lowering speed is too fast, so as to warn the rehabilitee to slow down, thereby achieving a better rehabilitation treatment effect.

As shown in fig. 3 and 4, specifically, the orthopedic leg rehabilitation device 30 further includes an overspeed warning mechanism 80, the overspeed warning mechanism 80 includes a centrifugal induction assembly 100, and the centrifugal induction assembly 100 includes: the centrifugal induction ball bearing comprises a movable lantern ring 110, a supporting and closing swing rod 120 and a centrifugal induction ball 130, wherein the movable lantern ring 110 is sleeved on a rotating connecting rod 610 in a sliding mode, one end of the supporting and closing swing rod 120 is hinged to the movable lantern ring 110, and the other end of the supporting and closing swing rod is connected with the centrifugal induction ball 130.

As shown in fig. 4 and 6, specifically, the overspeed warning mechanism 80 further includes: a driving link 200, a movable locking block 300 and a fixed locking body 400. The movable locking block 300 is slidably fitted over the rotating link 610. One end of the driving connecting rod 200 is hinged with the movable locking block 300, and the other end is connected with the supporting and closing swing rod 120 in a sliding manner. The fixed locking body 400 is connected with the supporting bracket 40. In this embodiment, the fixed lock body 400 is connected with the protective box 70. The fixed locking body 400 is fixedly connected to the supporting frame 40, and the fixed locking body 400 is provided with a receiving groove 410, and the movable locking block 300 is received in the receiving groove 410 or separated from the receiving groove 410.

As shown in fig. 7, 8, 9 and 10, in particular, the receiving slot 410 is provided with a rising locking surface 411 and a falling locking surface 412, the movable locking block 300 is provided with a rising locking mating surface 310 and a falling locking mating surface 320, and the rising locking surface 411 is abutted against or separated from the rising locking mating surface 310; the lowering lock face 412 abuts against or separates from the lowering lock engagement face 320.

As shown in fig. 4 and fig. 6, specifically, the overspeed warning mechanism 80 further includes a fixing collar 500, the fixing collar 500 is sleeved on the rotating link 610, and the prop-up swing link 120 is connected to the fixing collar 500 through a spring 600. The cooperation of the fixing collar 500 and the spring 600 provides elastic force for the resetting of the centrifugal sensing ball 130, so as to ensure that the overspeed warning mechanism 80 can be restored to an unlocked state, and a rehabilitee can continue rehabilitation treatment; moreover, when the overspeed warning mechanism 80 is in the unlocked state, the cooperation of the fixing collar 500 and the spring 600 provides a stable supporting function for the centrifugal sensing ball 130, thereby improving the stability of the centrifugal sensing assembly 100.

As shown in fig. 4, as a preferred embodiment, the number of the supporting and coupling swing rods 120 is two or more, and the two or more supporting and coupling swing rods 120 are distributed in a ring-shaped array around the central axis of the movable collar 110. Accordingly, the number of the driving links 200 is two or more, and the driving links 200 are equally spaced apart from each other around the central axis of the movable locking block 300. And the number of the driving connecting rods 200 corresponds to the number of the supporting and closing swing rods 120 one to one. In this embodiment, the number of the supporting and closing swing rods 120 is two, and the two supporting and closing swing rods 120 are arranged oppositely; the number of the driving links 200 is two, and the two driving links 200 are oppositely disposed. The quantity and distribution of the supporting swing rods 120 and the driving connecting rods 200 are uniform, so that the centrifugal induction assembly 100 is stressed uniformly, and the system stability is high.

The working principle of the overspeed warning mechanism 80 is further explained below (please refer to fig. 1 to 10 together):

when the rehabilitee lifts the leg, the rotating link 610 rotates clockwise (as shown in fig. 7); meanwhile, the centrifugal induction component 100 rotates clockwise along with the rotating link 610; in this process, the centrifugal sensing ball 130 moves away from the central axis of the rotating link 610 under the action of centrifugal force, so as to drive the opening/closing swing link 120 to open with the central axis of the movable sleeve ring 110 as the center, further cause the driving link 200 to open with the central axis of the movable locking block 300 as the center, and the driving link 200 pushes the movable locking block 300 to move along the rotating link 610 toward the direction close to the fixed locking body 400; it should be noted that, the faster the leg of the rehabilitee is lifted, the faster the rotating link 610 rotates clockwise, the greater the centrifugal force applied to the centrifugal sensing ball 130, so that the centrifugal sensing ball 130 is farther away from the central axis of the rotating link 610, and the closer the movable locking block 300 is to the fixed locking body 400 indirectly;

when the leg of the rehabilitee is lifted fast enough, the movable locking piece 300 enters the receiving groove 410 of the fixed locking body 400; when the movable locking block 300 continues to rotate clockwise in the receiving slot 410 until the ascending locking mating surface 310 abuts against the ascending locking surface 411, the movable locking block 300 is in a locked state, so that the rotating link 610 is also in a locked state; in this state, if the leg force application mechanism 50 is to be lifted continuously, the leg needs to overcome the gravity of the entire leg force application mechanism 50, that is, the leg needs to apply a larger force to lift the leg force application mechanism 50; when the rehabilitee feels that the leg force application mechanism 50 cannot be continuously lifted by the strength before use, the speed of the rehabilitee for lifting the leg on the table is too high, so that the rehabilitee can be prompted to slow down the speed of lifting the leg on the table;

if the rehabilitee needs to unlock the overspeed warning mechanism 80, the leg is slowly lowered slightly; this causes the leg-forcing mechanism 50 to move slightly downward and causes the rotating link 610 to rotate slightly counterclockwise (as viewed in fig. 8); thereby separating the raised locking engagement surface 310 from the raised locking surface 411; at the same time, since the rotation speed of the movable rotating link 610 is slowed down, the centrifugal force applied to the centrifugal sensing ball 130 is also reduced; the centrifugal inducing ball 130 is restored to the direction close to the central axis of the rotating link 610 under the elastic restoring force of the spring 600, thereby driving the propping oscillating bar 120 to fold with the central axis of the movable lantern ring 110 as the center, and further indirectly driving the driving link 200 to fold with the central axis of the movable locking block 300 as the center; the driving link 200 pulls the movable locking block 300 to move along the rotating link 610 in a direction away from the fixed locking body 400, so that the movable locking block 300 is smoothly released from the accommodating groove 410 to realize unlocking; after unlocking is completed, the rehabilitee can continue to slowly lift the legs, so that rehabilitation treatment is continued;

before unlocking, the legs are slightly lowered to separate the ascending locking matching surface 310 from the ascending locking surface 411, so that the friction force applied to the movable locking block 300 is reduced, and the movable locking block 300 is ensured to be smoothly separated from the accommodating groove 410; assuming the legs are not lowered slightly before unlocking, the rotating link 610 does not rotate slightly counterclockwise (as shown in FIG. 8), which allows the raised locking engagement surface 310 to still tightly abut the raised locking surface 411; in such a case, the driving link 200 cannot be retracted, so that the propping oscillating bar 120 cannot be retracted, and the centrifugal sensing ball 130 cannot be reset, i.e. the overspeed warning mechanism 80 is still in a locked state;

similarly, when the rehabilitee puts down the leg, the rotating link 610 rotates counterclockwise (as shown in fig. 9); meanwhile, the centrifugal induction component 100 rotates counterclockwise along with the rotating link 610; in this process, the centrifugal sensing ball 130 moves away from the central axis of the rotating link 610 under the action of centrifugal force, so as to drive the opening/closing swing link 120 to open with the central axis of the movable sleeve ring 110 as the center, further cause the driving link 200 to open with the central axis of the movable locking block 300 as the center, and the driving link 200 pushes the movable locking block 300 to move along the rotating link 610 toward the direction close to the fixed locking body 400; it should be noted that, the faster the leg of the rehabilitee is lowered, the faster the rotating link 610 rotates counterclockwise, the greater the centrifugal force applied to the centrifugal sensing ball 130, so that the centrifugal sensing ball 130 is farther away from the central axis of the rotating link 610, and the closer the movable locking block 300 is to the fixed locking body 400 indirectly;

when the leg descending speed of the rehabilitee is fast enough, the movable locking block 300 enters the accommodating groove 410 of the fixed locking body 400; when the movable locking block 300 continues to rotate counterclockwise in the receiving slot 410 until the lower locking mating surface 320 abuts against the lower locking surface 412, the movable locking block 300 is in a locked state, so that the rotating link 610 is also in a locked state; at this time, the leg force application mechanism 50 does not move downwards under the tensile force of the cord 630, and the leg of the rehabilitee moves downwards independently from the leg force application mechanism 50, so that the rehabilitee is prompted that the leg lowering speed is too high;

if the rehabilitee needs to unlock the overspeed warning mechanism 80, the leg is only required to be slowly and slightly lifted; this causes the leg-urging mechanism 50 to move slightly upward and the rotating link 610 to rotate slightly clockwise (as viewed in fig. 10); thereby disengaging lowering lock mating surface 320 from lowering lock surface 412; at the same time, since the rotation speed of the movable rotating link 610 is slowed down, the centrifugal force applied to the centrifugal sensing ball 130 is also reduced; the centrifugal sensing ball 130 is reset towards the direction close to the central axis of the rotating link 610 under the pulling force of the spring 600, so as to drive the propping oscillating bar 120 to fold with the central axis of the movable lantern ring 110 as the center, further indirectly drive the driving link 200 to fold with the central axis of the movable locking block 300 as the center, and the driving link 200 pulls the movable locking block 300 to move along the rotating link 610 towards the direction far away from the fixed locking body 400, further enabling the movable locking block 300 to smoothly release from the containing groove 410, thereby realizing unlocking; after the unlocking is finished, the rehabilitee can continue to slowly put down the legs so as to continue rehabilitation treatment;

similarly, before unlocking, the leg is slightly lifted to separate the lower locking mating surface 320 from the lower locking surface 412, so as to reduce the friction force applied to the movable locking block 300, thereby ensuring that the movable locking block 300 is smoothly released from the receiving groove 410.

According to the orthopedic rehabilitation medical instrument 10 applied to the legs, a rehabilitee can perform rehabilitation treatment in a sitting posture, and the orthopedic rehabilitation medical instrument is simple to operate and convenient to use; and the overspeed warning mechanism 80 can be used for carrying out locking warning when the lifting and lowering speed of the leg of the rehabilitee is too high, so as to ensure that the rehabilitee can lift and lower the leg at the required speed, thereby achieving better rehabilitation treatment effect.

Certainly, in the leg lowering process, when the lowering speed is too high, the overspeed warning mechanism 80 is locked, the leg force application mechanism 50 is effectively prevented from injuring the leg of the rehabilitee by mistake when being quickly hit down, and the safety is improved.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An orthopedic rehabilitation medical instrument applied to legs is characterized by comprising a human body supporting seat and a leg orthopedic rehabilitation device matched with the human body supporting seat; the orthopedic rehabilitation device for legs comprises: the leg force applying mechanism comprises a support frame, a leg force applying mechanism and a force adjusting mechanism, wherein the force adjusting mechanism is arranged on the support frame;

the leg force application mechanism includes: the gravity disc is connected with the force application connecting rod; the bearing is sleeved on the force application connecting rod, and the rope winds through an outer ring of the bearing; the leg force application mechanism further comprises a protection sliding block, the protection sliding block is sleeved outside the bearing, and the protection sliding block is arranged on the supporting frame in a sliding mode; the support frame is provided with a sliding groove, and the protective sliding block is slidably clamped in the sliding groove.

2. The orthopedic rehabilitation medical instrument applied to legs as claimed in claim 1, wherein said force adjusting mechanism further comprises a fixing link and a guiding wheel, said fixing link is disposed on said supporting frame, said guiding wheel is sleeved on said fixing link; the other end of the rope is wound around the guide wheel and then is connected with the force adjusting piece.

3. The orthopedic rehabilitation medical device applied to legs as claimed in claim 2, wherein said guide wheel is rotatably sleeved on said fixed link.

4. The orthopedic rehabilitation medical device applied to legs as claimed in claim 3, wherein said gravity disks are plural in number, and are equally divided at both ends of said force application link.

5. The orthopaedic rehabilitation medical device for legs according to claim 3, wherein the force modifier comprises a plurality of mutually detachable gravity cylinders.

6. The orthopedic rehabilitation medical device applied to legs as claimed in claim 3, wherein the number of the rotary drum, the cord and the force adjusting member is two, and the rotary drum, the cord and the force adjusting member are in one-to-one correspondence.

7. The orthopedic rehabilitation medical instrument applied to legs as claimed in claim 3, further comprising a protective box fixed on the supporting frame; the rotating connecting rod, the rotating drum, the fixed connecting rod and the guide wheel are all accommodated in the protective box; and the rotating connecting rod is rotatably connected with the protection box, and the fixed connecting rod is fixedly connected with the protection box.