CN114042292A

CN114042292A - Cerebral infarction patient lower limb rehabilitation training device

Info

Publication number: CN114042292A
Application number: CN202111571753.4A
Authority: CN
Inventors: 张振风
Original assignee: Yongcheng People's Hospital
Current assignee: Yongcheng People's Hospital
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-02-15
Anticipated expiration: 2041-12-21
Also published as: CN114042292B

Abstract

The invention discloses a lower limb rehabilitation training device for a patient with cerebral infarction, which comprises a walking machine body, wherein the walking machine body is provided with: the waist belt assembly comprises a waist cushion and a transmission shaft which are in transmission connection, the waist cushion is worn on the waist of the patient, and the transmission shaft moves along with the waist of the patient; the resetting mechanism is used for guiding the transmission shaft to slide downwards along a preset path and reset; and the buffer mechanism comprises an elastic springboard with an arc-shaped structure, the elastic springboard is used for connecting the end part of the transmission shaft with the side wall of the elastic springboard in a sliding manner, and when the elastic springboard slides downwards, the elastic springboard is pressed to enable the elastic springboard to move. According to the cerebral infarction patient lower limb rehabilitation training device, the waist belt assembly moves synchronously along with the movement of the waist of a patient, the direction of the downward sliding of the waist belt assembly is limited by the reset mechanism, the downward sliding of the waist belt assembly is blocked by the buffer mechanism, and the action of the patient at the moment of falling is converted into the action of slowly descending, so that a nurse can find and rescue the patient in time.

Description

Cerebral infarction patient lower limb rehabilitation training device

Technical Field

The invention relates to the technical field of rehabilitation appliance manufacturing, in particular to a lower limb rehabilitation training device for patients with cerebral infarction.

Background

Cerebral infarction belongs to a sudden disease, and is mainly concentrated on the elderly, and a few young people and middle-aged people with irregular work and rest. After the cure, there are serious sequelae, which are clinically manifested as incoordination of limbs, hemiplegia, hemilateral limb disorder, numbness of limbs, hemianopsia, etc. Therefore, in order to ensure the future life of the patient, the patient after the healing needs to perform the targeted exercise by using the rehabilitation apparatus in the regular rehabilitation department of the hospital, so as to help the limb of the patient to be recovered to a certain extent.

Reference to patent No. CN202022951707.4, publication (publication) date: 2021-06-22, discloses a cerebral infarction patient lower limb rehabilitation training device, comprising a base, the middle part fixedly connected with fixing base of base upper surface, there is a training board in the middle part of diapire in the fixing base through hinge swing joint, the lower fixed surface of training board is connected with first spring, the positive middle part of base is provided with the training mechanism, the equal fixedly connected with U-shaped seat in both sides of base is positive, the inside wall of U-shaped seat has even board through round pin axle swing joint, the one end fixedly connected with loading board of even board, the spout has been seted up at the middle part of loading board upper surface, the inside wall swing joint of spout has the slider, one side fixedly connected with second spring of slider, the last fixed surface of slider is connected with the footboard. Through the base among the above-mentioned technical scheme, a fixed base, the training board, training mechanism, the U-shaped seat, even board, the loading board, the setting of spout and slider isotructure, personnel place the foot on the footboard, the backward slip is stepped on and then tensile second spring, make the slider slide in the spout, and then train the patient through the pulling force of second spring, personnel promote the footboard and then drive the connecting rod to both sides and make the tensile telescopic link of connecting rod and then stimulate the third spring, make the patient train to both sides, the training effect has been improved.

The walking machine belongs to one type of rehabilitation instruments, and has the main function of rehabilitating the walking ability of a patient, so that the basic walking ability of the patient is recovered, the patient can conveniently obtain certain self-care ability, and the accompanying pressure of family members of the patient is reduced. The walking machine mainly includes operating panel, the support frame of running area and side, because patient's low limbs harmony is relatively poor, generally all can be in the support frame installation constraint area of side, utilize the constraint area to tie up the patient, thereby the auxiliary patient can stand on the walking machine, because patient's low limbs are unable autonomic, consequently when carrying out rehabilitation training, when patient's upper limbs can't support patient's health, the condition of tenesmus will appear, under the effect in constraint area, can restrict patient's tenesmus distance, but this kind of tenesmus action takes place in the twinkling of an eye, when medical personnel reacted, patient's foot had moved backward along with the conveying of running area, there is the probability can cause patient's ankle joint to sprain.

Disclosure of Invention

The invention aims to provide a lower limb rehabilitation training device for patients with cerebral infarction, which is used for solving the technical problems.

In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides a cerebral infarction patient low limbs rehabilitation training device, is including vigorous and energetic machine body, be provided with on vigorous and energetic machine body:

the waist belt assembly comprises a waist cushion and a transmission shaft which are in transmission connection, the waist cushion is used for being worn on the waist of a patient, and the transmission shaft moves along with the waist of the patient;

the resetting mechanism is used for guiding the transmission shaft to slide downwards along a preset path and reset;

and the buffer mechanism comprises an elastic springboard with an arc-shaped structure, the elastic springboard is used for connecting the end part of the transmission shaft with the side wall of the elastic springboard in a sliding manner, and when the elastic springboard slides downwards, the elastic springboard applies pressure so as to enable the elastic springboard to move.

Preferably, the reset mechanism comprises a guide assembly and an elastic assembly, wherein the guide assembly is used for driving the transmission shaft to move according to a predetermined path and reset through the elastic assembly.

Preferably, the guide assembly comprises four linkages symmetrically distributed about the drive shaft for moving the drive shaft along three predetermined paths:

a first path moving downward in a vertical direction;

a second path moving downward in a left oblique downward direction;

and a third path moving downward in a right-oblique downward direction.

Preferably, the four-bar linkage comprises a limiting rod, guide rods, special-shaped rods and auxiliary rods, the two guide rods are distributed in a scissor-fork shape, first waist grooves are formed in the outer walls of the two guide rods, and the transmission shafts penetrate through the two first waist grooves;

the elastic assembly is composed of a plurality of damping springs.

One end of the auxiliary rod is rotatably arranged, and the other end of the auxiliary rod is rotatably connected with one end of the guide rod, which is opposite to the first waist groove;

one end of the limiting rod is rotatably arranged, the other end of the limiting rod is provided with a second waist groove, and the guide rod is provided with a convex shaft which is movably positioned in the second waist groove;

the special-shaped rod is of an L-shaped structure, one end of the special-shaped rod is rotatably arranged on the auxiliary rod, the other end of the special-shaped rod is connected with one ends of the guide rod and the auxiliary rod through the damping spring, and the intersection of the special-shaped rod and the side wall of the limiting rod is in rolling connection;

one end of the damping spring is connected to an ear handle arranged on one side wall of the guide rod, and the other end of the damping spring is connected to the end part of the other guide rod.

Preferably, the transmission shaft is divided into:

a waste arm in transmission connection with the waist pad;

the force saving arm is connected with the elastic springboard in a sliding way at the end part, and when the force saving arm moves downwards along the second path or the third path, the force is applied to enable the elastic springboard to move.

Preferably, the elastic springboard is composed of elastic boards which are symmetrically distributed, the two elastic boards are funnel-shaped, and the transmission shaft abuts against the inner walls of the two elastic boards.

Preferably, the number of the elastic springboard is a plurality, and the elastic springboard is distributed along the vertical direction, and when the transmission shaft slides downwards, the elastic springboard is pressed to move outwards and abuts against the elastic springboard below.

Preferably, the end of the transmission shaft is provided with a guide block, the guide block is in an elliptical structure and is divided into a blocking part and a guiding part, the blocking part abuts against the inner walls of the two elastic plates of the elastic springboard and enables the two elastic plates to move outwards in the downward sliding process.

Preferably, the end parts of the two elastic plates are both of special-shaped structures, and the special-shaped structures are used for stopping the blocking parts from sliding downwards and are pushed to move towards two sides.

Preferably, the profile structure is divided by function into a receiving region, a constricted region and a guide region, wherein:

the guide block is retained by the bearing area so as to be kept at an original station;

when the guide block slides downwards to the mouth restraining area, the two elastic plates are pushed to move outwards;

when the guide block is reset, the guide area leads the guide part into the restriction area.

In the technical scheme, the lower limb rehabilitation training device for the cerebral infarction patient provided by the invention has the following beneficial effects: in the scheme, the waist belt assembly is fixed on the waist of a patient and can move along with the waist of the patient, the transmission shaft drives the reset mechanism to synchronously move by the buffer mechanism in the process that the waist belt assembly moves along with the waist of the patient, when the patient falls, the reset mechanism has the effect of keeping the waist belt assembly at an original station all the time, and drives the transmission shaft to fall in a preset direction under the condition that the patient falls due to insufficient support, namely to fall in the vertical direction; and at the in-process that descends, the tip of transmission shaft slides along the side of elasticity springboard, exerts pressure at the slip in-process and orders about the elasticity springboard and change, increases the tenesmic damping force of waist beam subassembly to reduce the speed that the patient descends, be convenient for lie in the timely discovery of walking machine body one side and carry out the supporting in mixture, in order to avoid taking place the patient foot and for the walking belt conveying of work and move backward, cause the emergence of patient's ankle joint sprain problem.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic diagram of an overall structure provided in an embodiment of the present invention;

fig. 2 is a schematic diagram of an explosion structure of a chassis according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a fitting relationship between a buffering mechanism and a guide block according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a matching relationship between a reset mechanism and a guide block according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a matching relationship between a four-bar linkage and an elastic component according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a fitting relationship among the stop lever, the special-shaped lever and the guide lever according to the embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a transmission shaft according to an embodiment of the present invention, wherein the transmission shaft is maintained in an original state;

FIG. 8 is a structural diagram illustrating a state of a four-bar linkage in a first path according to an embodiment of the present invention;

FIG. 9 is a structural diagram illustrating a state of the four-bar linkage in the second path according to the embodiment of the present invention;

fig. 10 is a structural diagram illustrating a state of a four-bar linkage in a third path according to an embodiment of the present invention.

Description of reference numerals:

1. a body of the walking machine; 11. a support frame; 2. a chassis; 21. a first mounting plate; 22. a second mounting plate; 3. a waist belt assembly; 31. a waist pad; 32. a drive shaft; 33. a guide block; 34. a silica gel dust-blocking sleeve; 331. a blocking portion; 332. a guide section; 4. a reset mechanism; 5. a guide assembly; 51. a four-bar linkage; 511. a limiting rod; 512. a guide bar; 5121. a first waist groove; 5111. a second waist groove; 513. a profiled bar; 5131. a guide shaft seat; 514. an auxiliary lever; 6. an elastic component; 7. a buffer mechanism; 71. an elastic springboard; 711. a carrying area; 712. a restriction zone; 713. a guiding area.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1-10, a lower limb rehabilitation training device for patients with cerebral infarction comprises a walking machine body 1, wherein the walking machine body 1 is provided with:

the waist belt assembly 3 comprises a waist cushion 31 and a transmission shaft 32 which are in transmission connection, the waist cushion 31 is used for being worn on the waist of a patient, and the transmission shaft 32 moves along with the waist of the patient;

the resetting mechanism 4 is used for guiding the transmission shaft 32 to slide downwards along a preset path and reset;

and the buffer mechanism 7 comprises an elastic springboard 71 with an arc-shaped structure, wherein the end part of the transmission shaft 32 is in sliding connection with the side wall of the elastic springboard 71, and when the elastic springboard 71 slides downwards, the elastic springboard 71 presses to enable the elastic springboard 71 to move.

Specifically, in the above embodiment, the support frame 11 is provided on the main body 1 of the walking machine, and the upper limbs of the patient are supported by the support frame 11, so that the patient can support the lower limbs independently and stand on the running belt of the main body 1 of the walking machine. Further, the lumbar assembly 3, the return mechanism 4 and the buffer mechanism 7 in the above embodiments are all mounted on the chassis 2, and are mounted on the two support frames 11 through the chassis 2. The waist pad 31 in the embodiment is worn on the waist of a patient through a nylon belt, then the tenon rod at the back of the waist pad 31 is inserted into the transmission shaft 32, and the tenon rod and the transmission shaft 3 can keep axial movement with a certain length (key groove matching exists between two rod bodies), so that the requirement that the distance between the patient and the case 2 can be changed within a certain range (parameters of the patient are not disclosed in detail) in the use process of the walking machine body 1 is met, and the walking machine has certain self-moderation.

Further, the reset mechanism 4 in the embodiment is used to provide the transmission shaft 32 with the desired movement under the stress, and when the stress applied to the transmission shaft 32 is removed, the reset mechanism 4 drives the transmission shaft 32 to return to the start point of the downward sliding along the predetermined path. The stress of the patient who exercises on the body 1 of the walking machine is that when the lower limbs are soft or the upper limbs can not support the patient to keep a standing state, the waist belt assembly 3 can fall down together with the patient, the falling direction can not be expected, and the falling process can happen instantly, so that when an accident happens, the injury and the injured part caused by falling of the patient can not be predicted. Therefore, the above technical scheme presets the falling direction of the patient, so that the patient can fall in the falling process according to the preset direction, and the falling of the patient is limited to any direction taking the patient as the center of a circle, such as forward inclining, backward inclining, left inclining, right inclining and the like, so that the falling process can only keep a gliding state, and the falling direction is prevented from colliding with the patient to cause more damage. Specifically, the reset mechanism 4 in the embodiment is installed on the second installation plate 22 on the port of the chassis 2, and the reset mechanism 4 may be a guide slider and a spring that pulls or pushes the guide slider to maintain one end of the guide slider in a guide chute formed on the second installation plate 22; or a multi-link mechanism, the swing in the multi-link mechanism keeps swinging as the lumbar tie assembly 3 falls down when the lumbar tie assembly 3 falls down, thereby restricting the falling route of the lumbar tie assembly 3; or any mechanical structure with guiding function known to those skilled in the art.

Furthermore, the transmission shaft 32 slides downwards along a preset route under the guidance of the reset mechanism 4, and the buffer mechanism 7 can block the transmission shaft 32 from falling down on the sliding path of the transmission shaft 32, so that the technical purpose of reducing the falling speed of the transmission shaft 32 is realized, and in the falling process, when the falling is greatly reduced, the instantaneous action is converted into a delay action, so that medical personnel nearby can react conveniently, and the assistant support and rescue are carried out. Further, the elastic springboard 71 in the above embodiment may be distributed in a horizontal state, and two ends of the elastic springboard 71 are respectively provided with a tooth opening, and the tooth openings are engaged with the gears distributed relatively to the elastic springboard 71, the gears are installed on the first installation plate 21 in the chassis 2 through the rotational damping, when the transmission shaft 32 falls down to contact the elastic springboard 71 and drive the elastic springboard to fall down, and two ends of the elastic springboard 71 drive the gears to rotate; or the elastic springboard 71 is a high-strength elastic steel plate which is distributed according to a preset inclination, when the transmission shaft 32 falls down, the transmission shaft 32 is positioned on the surface of the elastic springboard 71 to slide, and the elastic springboard 71 is pressed down to deform under the influence of the stroke; or a mechanical structure with damping and speed reducing functions known to those skilled in the art.

It should be noted that the through hole is formed in the first mounting plate 21, and the purpose of the through hole is to facilitate the transmission shaft 32 to move along with the patient. Further, a silica gel dust-blocking sleeve 34 is mounted on the transmission shaft 32, and the silica gel dust-blocking sleeve 34 is mounted in the through hole.

In the technical scheme, the waist belt assembly 3 is fixed on the waist of a patient and can move along with the waist of the patient, the transmission shaft 32 drives the reset mechanism 4 to synchronously move by the buffer mechanism 7 in the process that the waist belt assembly 3 moves along with the movement, when the patient falls, the reset mechanism 4 has the function of keeping the waist belt assembly 3 at an original station all the time, and drives the transmission shaft 32 to fall in a preset direction under the condition that the patient falls due to insufficient support, namely to fall in the vertical direction; and in the falling process, the end part of the transmission shaft 32 slides along the side surface of the elastic springboard 71, and the pressure is applied to drive the elastic springboard 71 to change in the sliding process, so that the falling damping force of the waist belt assembly 3 is increased, the falling speed of the patient is reduced, medical personnel at one side of the walking machine body 1 can find and support the waist belt assembly in time, and the ankle joint sprain problem of the patient caused by the transmission of the feet of the patient to the running belt in work can be avoided.

As a further embodiment of the present invention, the reset mechanism 4 comprises a guiding component 5 and an elastic component 6, wherein the guiding component 5 is used for driving the transmission shaft 32 to move according to a predetermined path and reset through the elastic component 6. Specifically, the guiding element 5 in the embodiment can be an eccentric wheel and a connecting rod element, and the elastic element 6 is a rotation damper for limiting the rotation of the eccentric wheel; or the guiding component 5 is a multi-link structure, and the elastic component 6 is a tension spring, and the multi-link structure is pulled by the tension spring, so that the transmission shaft 32 after falling is reset under the state of no stress; or a guide structure known to those skilled in the art.

As a further preferred embodiment of the present invention, the guiding assembly 5 comprises four-bar linkage 51 symmetrically distributed about the transmission shaft 32, the four-bar linkage 51 being used for moving the transmission shaft 32 along three predetermined paths:

a first path, moving downwards in the vertical direction (fig. 7 and 8);

a second path moving downward in a left obliquely downward direction (fig. 7 and 9);

and a third path, moving down in a diagonally downward right direction (fig. 7 and 10).

Specifically, the four-bar linkage 51 in the above embodiment provides three movement tracks for the transmission shaft 32, and the patient exercises on the main body 1, which is limited by the connection relationship between the lumbar pad 31 and the transmission shaft 32, and has only the axial movement (length change) capability, but no circumferential rotation capability, and the falling path is preset. Consequently when the patient appears one side holding power not enough, then the patient will take place the problem of left incline or right incline, because the whole specification of walking machine main part 1 is smaller, when the patient takes place left incline or right incline, then must collide with on walking machine main part 1. Furthermore, if the patient leans to the left or to the right, the most general result is a tenesmus, because when the patient leans to the left or to the right, if the patient only moves along the first path, a problem will arise, because when the supporting force is insufficient on one side of the patient, the supporting force needs to be increased on the other side of the body in order to keep the balance of the body, and the supporting force needs to be increased by the limitation of the first path, and the lower limb coordination of the patient is poor, so that the probability of the patient falling down is increased. When the patient performs recovery exercise on the rehabilitation apparatus, the probability of forward tilting and backward tilting is almost zero, and the probability of falling caused by single-side force loss is far greater than the probability of falling caused by simultaneous force loss. Therefore, the second path and the third path are added to meet the requirement of the left-leaning or the right-leaning, when the left-leaning or the right-leaning occurs, the buffer mechanism 7 in the scheme is used for being necessarily acted by the buffer mechanism 7, and the patient can independently stabilize the body by virtue of the traction of the elastic component 6, keep standing and avoid the falling. The buffer mechanism 7 is used for delaying the falling speed of the patient in the first path so as to be conveniently discovered by the nurse in time.

Further, in the above embodiment, as shown in fig. 2, 4, 5 and 6, the four-bar linkage 51 includes a limiting rod 511, two guide rods 512, a special-shaped rod 513 and an auxiliary rod 514, the two guide rods 512 are distributed in a scissor shape, the outer walls of the two guide rods 512 are both provided with first waist grooves 5121, and the transmission shaft 32 passes through the two first waist grooves 5121. When the transmission shaft 32 is driven by the patient to fall, tilt left or tilt right, the four-bar linkage 51 moves in the direction predetermined by the first path, the second path and the third path in the above technical solution. Furthermore, the elastic component 6 in the embodiment is composed of a plurality of damping springs, and is compressed or stretched by the force during the above three paths. Meanwhile, as can be seen from fig. 4, one end of the auxiliary rod 514 is rotatably disposed on the first mounting plate 21, and the other end is rotatably connected to one end of the guide rod 512 opposite to the first waist groove 5121; one end of the limiting rod 511 is rotatably arranged on the first mounting plate 21, the other end of the limiting rod is provided with a second waist groove 5111, and the guide rod 512 is provided with a convex shaft which is movably arranged in the second waist groove 5111; the special-shaped rod 513 is specifically an L-shaped structure, one end of the special-shaped rod is rotatably disposed on the auxiliary rod 514, the other end of the special-shaped rod is connected with one end of the guide rod 512 and one end of the auxiliary rod 514 through a damping spring, a guide shaft seat 5131 is disposed at the intersection of the special-shaped rod and the auxiliary rod, the guide shaft seat 5131 is in rolling connection with the side wall of the limiting rod 511, and the special-shaped rod slides against the limiting rod 511 in the process of being stressed. The damping spring has one end connected to an ear provided on a side wall of one of the guide bars 512 and the other end connected to an end of the other guide bar 512. Specifically, the method comprises the following steps:

in a first path state: when the patient loses force on both sides simultaneously, namely, the legs and the hands cannot support the body, the transmission shaft 32 is forced to slide downwards along the vertical direction, the two auxiliary rods 514 deflect by taking the switching part as the axis, the other end approaches the transmission shaft 32, the guide rod 512 slides downwards and slides downwards along the second waist groove 5111 of the limiting rod 511, and the end part is kept in the state from fig. 7 to fig. 8. In the process, the limit rod 511 and the auxiliary rod 514 are kept parallel, that is, the end with the second waist groove 5111 is close to the transmission shaft 32, and in the process, the limit rod 511 pushes the guide shaft seat 5131, so that the special-shaped rod 513 is driven to keep the same action as the limit rod 511 and the auxiliary rod 514. And the elastic components 6 are all stressed and pulled to deform, so that the assistant force of the falling is increased by matching with the buffer mechanism 7, and the falling speed is delayed.

In the second path state: when the patient loses force on the left side, i.e. the patient tilts to the left, the transmission shaft 32 is forced to move to the lower left. Referring to fig. 9, the two auxiliary levers 514 are simultaneously deflected to the left, and in synchronization, the stopper lever 511 and the profile lever 513 are maintained in the same deflection direction as the auxiliary levers 514. In the process, the elastic components 6 on the left side are all compressed under force, and the right side is stretched under force, so that the patient is provided with resistance from the state of inclining to the left side under the cooperation of the elastic components 6 and the buffer mechanism 7, a certain supporting force is given to the patient, and the patient is supported back to the state of fig. 7.

In the third path state: when the patient loses force on the right side, i.e. the patient inclines to the right side, the transmission shaft 32 is forced to move to the right and below. Referring to fig. 10, the two auxiliary levers 514 are simultaneously deflected to the right, and in synchronization, the stopper lever 511 and the profile lever 513 are maintained in the same deflection direction as the auxiliary levers 514. In this process, the right elastic elements 6 are all compressed by force, while the left elastic elements are stretched by force, under the cooperation of the elastic elements 6 and the buffer mechanism 7, so as to provide resistance to the patient from the state of inclining to the right, giving the patient a certain supporting force, and thus supporting the patient back to the state of fig. 7.

It should be noted that, in the above embodiment, when the transmission shaft 32 is forced to move along the first path, the second path and the third path under the limitation of the four-bar linkage 51, that is, the path distances of fig. 7 to 8, 7 to 9 and 7 to 10, are actually the maximum movement path that the four-bar linkage 51 can provide, and not when the patient is forced to slide down, the transmission shaft 32 will not necessarily reach the end of the path. The sliding down process is necessarily hindered by the cooperation of the elastic component 6 and the buffer mechanism 7.

As a further embodiment of the present invention, the elastic plate is symmetrically distributed, and the two elastic plates are funnel-shaped, and the transmission shaft 32 abuts against the inner walls of the two elastic plates. Specifically, one end of the elastic plate in the embodiment is fixed on the second mounting plate 22, while three quarters of the remaining elastic springboard 71 remains movable, while the opening of the funnel structure corresponds to the end of the unwelded portion, and the welded portion corresponds to the wide opening of the funnel structure. When the drive shaft 32 is held in the home position, i.e. in the condition of fig. 7, the end of the drive shaft 32 will abut against the mouth of the funnel. When the drive shaft 32 is forced to move along the first path: the transmission shaft 32 moves downwards, the moving shaft 32 is forced to slide downwards along the vertical direction, the two auxiliary rods 514 deflect by taking the switching part as the axis, the other end approaches the transmission shaft 32, the guide rod 512 slides downwards and slides downwards along the second waist groove 5111 of the limiting rod 511, and the end part is kept in the state from fig. 7 to fig. 8. In the process, the limit rod 511 and the auxiliary rod 514 are kept parallel, that is, the end with the second waist groove 5111 is close to the transmission shaft 32, the limit rod 511 pushes the guide shaft seat 5131, so that the special-shaped rod 513 is driven to keep the same action as the limit rod 511 and the auxiliary rod 514, and the elastic component 6 is pulled by force and deformed. When the end of the transmission shaft 32 moves downwards, the opening is squeezed, so that the radius of the opening is increased. The elastic springboard 71 intercepts the downward sliding action of the transmission shaft 32 when the elastic component 6 slides down, the two are matched to provide resistance for the patient during the dropping process, and the larger the dropping distance is, the longer the distance is, the larger the resistance is.

When the drive shaft 32 is forced to move along the second path: the drive shaft 32 is forced to move left and down. Referring to fig. 9, the two auxiliary levers 514 are simultaneously deflected to the left, and in synchronization, the stopper lever 511 and the profile lever 513 are maintained in the same deflection direction as the auxiliary levers 514. The elastic elements 6 on the left are all forced to compress, while the right are forced to stretch. At the same time, the transmission shaft 32 will also move to the left and downward, so as to press the elastic plate on the left side (fig. 3), thereby driving the elastic plate on the left side to displace relative to the elastic plate on the right side. The cooperation of the elastic component 6 and the elastic springboard 71 increases the resistance to left leaning, thereby giving the patient a certain supporting force, so that the patient can voluntarily stabilize the body by virtue of the supporting force.

When the drive shaft 32 is forced to move along the third path: the transmission shaft 32 is forced to move right and downward. Referring to fig. 10, the two auxiliary levers 514 are simultaneously deflected to the right, and in synchronization, the stopper lever 511 and the profile lever 513 are maintained in the same deflection direction as the auxiliary levers 514. The right elastic elements 6 are all compressed and the left stretched. At the same time, the moving shaft 32 will also move to the lower right, so as to press the left elastic plate (fig. 3), thereby driving the right elastic plate to displace relative to the right elastic plate. The cooperation of the elastic component 6 and the elastic springboard 71 increases the resistance to right inclination, thereby giving a certain supporting force to the patient so that the patient can voluntarily stabilize the body by virtue of the supporting force.

As a further embodiment of the present invention, the number of the elastic springboard 71 is plural, and the elastic springboard 71 is distributed along the vertical direction, and when the transmission shaft 32 slides down, the elastic springboard 71 is pressed to move outwards and abuts against the elastic springboard 71 below. In a specific embodiment, when the body of the patient is unbalanced and drives the transmission shaft 32 to move along the second path and the third path, the end of the transmission shaft 32 will push against the elastic plate on one side, and along with the movement, the elastic plate on the first stage will contact the elastic plate on the next stage due to the pushing of the transmission shaft 32, and the pushing of the elastic plate will keep moving, so as to increase the resistance to the inclination of one side; when the transmission shaft 32 moves along the first path, the end of the transmission shaft 32 pushes the elastic plates at the two sides to move outwards.

Further, in the above technical solution, the transmission shaft 32 is divided into: a waste arm in transmission connection with the waist pad 31; the force saving arm is connected with the elastic springboard 71 in a sliding way at the end part, and when the arm moves downwards along the second path or the third path, the arm is pressed to enable the elastic springboard 71 to move. Specifically, when the waist pad 31 moves along with the waist of the patient to drive the transmission shaft 32 to move towards one side, the force saving arm can amplify the force applied by the sliding elastic springboard 71 on the transmission shaft 32. On the first path, the above-mentioned labor-saving arm is out of action.

The spring board 71 in the example is a high-toughness spring steel plate. And in order to meet the technical purposes that the buffer mechanism 7 provides blocking in the second path and the third path and supports the patient under resistance, the elastic springboard 71 is inevitably an elastic board which is symmetrically arranged, because the probability of left inclination and right inclination is greater than the probability of falling, if the speed of left inclination and right inclination is delayed, the working pressure of the medical staff is increased undoubtedly. And when the body inclines on one side, one side of the body loses force, and the other side still keeps supporting, so when the body inclines on one side, namely when the body inclines on the other side, the force applied to the structure is small, and the body can be stabilized by the mechanical structure. While the falling of the first path, in which the patient loses force on both sides simultaneously, occurs when the weight of the whole body is almost applied to the cushioning mechanism 7 and the return mechanism 4, it is obviously difficult to achieve the technical objects like the second path and the third path by means of the structure.

As a further embodiment of the present invention, a guide block 33 is installed at an end of the transmission shaft 32, the guide block 33 is in an elliptical structure and is divided into a blocking portion 331 and a guiding portion 332, and the blocking portion 331 abuts against inner walls of two elastic plates of the elastic springboard 71 and moves the two elastic plates outward during a downward sliding process. Specifically, the blocking portion 331 has the largest radius on the guide block 33 (the whole elliptical structure), so that when the transmission shaft 32 is driven to slide downwards, the end of the blocking portion 331 can abut against and push the elastic plates on both sides, and along with the movement, the elastic plate of the first stage can contact the elastic plate of the next stage, thereby increasing the resistance of the two elastic plates of the first stage to the separation on both sides. Meanwhile, the two auxiliary rods 514 deflect around the transition point, the other end of the auxiliary rod approaches the transmission shaft 32, and the guide rod 512 slides downwards and slides downwards along the second waist groove 5111 of the limiting rod 511, and reaches the end part to be kept in the state from fig. 7 to fig. 8. In the process, the limit rod 511 and the auxiliary rod 514 are kept parallel, that is, the end with the second waist groove 5111 approaches the transmission shaft 32, in the process, the limit rod 511 pushes the guide shaft seat 5131, so that the special-shaped rod 513 is driven to keep the same action as the limit rod 511 and the auxiliary rod 514, and the elastic component 6 is pulled by force to deform. Thereby achieving a reduction in the rate of descent thereof.

Furthermore, the guide portion 332 has the smallest radius on the guide block 33 (the entire elliptical structure), so that when the drive shaft 32 is forced to drop and the guide block 33 completely slides out of the elastic springboard 71 of the first stage and falls into the elastic springboard 71 of the second stage, the guide block 33 continues to be blocked by the elastic springboard 71 of the second stage and the elastic springboard 71 of the third stage. When the patient is supported by the nurse to return to the original position (fig. 7), the guide 332 is returned to the first stage of the elastic diving board 71 during the return process (refer to fig. 3).

As another embodiment provided by the present invention, the ends of the two elastic plates are both of a special-shaped structure, and the special-shaped structure is used for blocking the blocking portion 331 from sliding downwards and being pushed to move towards two sides. Specifically, the special-shaped structures in the above technical scheme may be C-shaped structures, V-shaped structures, W-shaped structures, diamond-shaped structures, and triangular structures, wherein when the special-shaped structures of the two elastic plates are C-shaped structures, V-shaped structures, and W-shaped structures, the ports thereof are distributed relatively.

As a preferred embodiment of the present invention, as shown in fig. 3, in the above technical solution, the profile structure is divided into a receiving region 711, a mouth-closing region 712 and a guiding region 713 according to functions, wherein:

the guide block 33 is retained by the receiving area 711 to be kept at the original station;

when the guide block 33 slides down to the opening restraining area 712, the two elastic plates are pushed to move outward, the blocking portion 331 abuts against the inner walls of the two elastic plates of the elastic springboard 71, and the two elastic plates move outward in the sliding process. Specifically, the blocking portion 331 has the largest radius on the guide block 33 (the whole elliptical structure), so that when the transmission shaft 32 is driven to slide downwards, the end of the blocking portion 331 can abut against and push the elastic plates on both sides, and along with the movement, the elastic plate of the first stage can contact the elastic plate of the next stage, thereby increasing the resistance of the two elastic plates of the first stage to the separation on both sides.

When the guide block 33 is reset, the guide region 713 is guided such that the guide portion 332 is guided into the cuff region 712, and when the nurse supports the guide portion 332 back to the original station (fig. 7), the guide portion 332 is returned to the elastic springboard 71 of the first stage (refer to fig. 3) during the resetting process.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides a cerebral infarction patient lower limbs rehabilitation training device, includes walking machine body (1), its characterized in that is provided with on walking machine body (1):

the waist belt assembly (3) comprises a waist cushion (31) and a transmission shaft (32) which are in transmission connection, wherein the waist cushion (31) is used for being worn on the waist of a patient, and the transmission shaft (32) moves along with the waist of the patient;

the resetting mechanism (4) is used for guiding the transmission shaft (32) to slide downwards along a preset path and reset;

the buffer mechanism (7) comprises an elastic springboard (71) with an arc-shaped structure, wherein the elastic springboard (71) is used for connecting the end part of the transmission shaft (32) with the side wall of the elastic springboard (71) in a sliding way, and when the elastic springboard (71) slides downwards, the elastic springboard (71) is pressed to enable the elastic springboard (71) to move.

2. The rehabilitation training device for the lower limbs of the patients with cerebral infarction as claimed in claim 1, wherein the resetting mechanism (4) comprises a guiding component (5) and an elastic component (6), the guiding component (5) is used for driving the transmission shaft (32) to move according to a preset path, and the resetting is carried out through the elastic component (6).

3. The cerebral infarction patient lower limb rehabilitation training device according to claim 2, wherein the guide assembly (5) comprises four linkages (51) symmetrically distributed about the transmission shaft (32), the four linkages (51) being configured to move the transmission shaft (32) along three predetermined paths:

a first path moving downward in a vertical direction;

a second path moving downward in a left oblique downward direction;

and a third path moving downward in a right-oblique downward direction.

4. The lower limb rehabilitation training device for the patient with cerebral infarction as claimed in claim 3, wherein the four-bar linkage (51) comprises a limiting rod (511), a guide rod (512), a special-shaped rod (513) and an auxiliary rod (514), the two guide rods (512) are distributed in a scissor-shaped manner, the outer walls of the two guide rods are respectively provided with a first waist groove (5121), and the transmission shaft (32) passes through the two first waist grooves (5121);

the elastic component (6) is composed of a plurality of damping springs.

One end of the auxiliary rod (514) is rotatably arranged, and the other end of the auxiliary rod is rotatably connected with one end of the guide rod (512) opposite to the first waist groove (5121);

one end of the limiting rod (511) is rotatably arranged, the other end of the limiting rod is provided with a second waist groove (5111), and the guide rod (512) is provided with a convex shaft which is positioned in the second waist groove (5111) and can move;

the special-shaped rod (513) is of an L-shaped structure, one end of the special-shaped rod is rotatably arranged on the auxiliary rod (514), the other end of the special-shaped rod is connected with one end of the guide rod (512) and one end of the auxiliary rod (514) through the damping spring, and the junction of the special-shaped rod and the auxiliary rod is in rolling connection with the side wall of the limiting rod (511);

one end of the damping spring is connected with an ear handle arranged on the side wall of one guide rod (512), and the other end of the damping spring is connected with the end part of the other guide rod (512).

5. The lower limb rehabilitation training device for cerebral infarction patients according to claim 1, characterized in that the transmission shaft (32) is divided into:

a waste arm in transmission connection with the waist pad (31);

the end part of the labor-saving arm is connected with the elastic springboard (71) in a sliding way, and when the labor-saving arm moves downwards along the second path or the third path, the force is applied to enable the elastic springboard (71) to move.

6. The rehabilitation training device for the lower limbs of the patients with cerebral infarction as claimed in claim 1, wherein the elastic springboard (71) is composed of symmetrically distributed elastic boards, the two elastic boards are funnel-shaped, and the transmission shaft (32) abuts against the inner walls of the two elastic boards.

7. The rehabilitation training device for the lower limbs of the patients with cerebral infarction as claimed in claim 7, wherein the number of the elastic springboard (71) is plural and is distributed along the vertical direction, and when the transmission shaft (32) slides downwards, the elastic springboard (71) is pressed to move outwards and abuts against the lower elastic springboard (71).

8. The rehabilitation training device for the lower limbs of the patients with cerebral infarction as claimed in claim 7, wherein the end of the transmission shaft (32) is provided with a guide block (33), the guide block (33) is of an elliptical structure and is divided into a blocking part (331) and a guiding part (332), the blocking part (331) abuts against the inner walls of the two elastic plates of the elastic jump plate (71) and enables the two elastic plates to move outwards in the process of sliding downwards.

9. The rehabilitation training device for the lower limbs of the patients with cerebral infarction as claimed in claim 8, wherein the ends of the two elastic plates are both shaped structures, and the shaped structures are used for preventing the blocking part (331) from sliding downwards and being pushed to move towards two sides.

10. The lower limb rehabilitation training device for the cerebral infarction patient according to claim 9, wherein the heterotype structure is divided into a bearing area (711), a girth area (712) and a guide area (713) according to functions, wherein:

the guide block (33) is retained by the bearing area (711) to be kept at an original station;

when the guide block (33) slides downwards to the opening restricting area (712), the two elastic plates are pushed to move outwards;

when the guide block (33) is reset, the guide region (713) guides the guide portion (332) into the bundle exit region (712).