CN115070741B

CN115070741B - Adjustable boosting type mechanical connecting piece

Info

Publication number: CN115070741B
Application number: CN202211009280.3A
Authority: CN
Inventors: 孙悦; 陆定邦; 赵雨淋; 孙斐; 陈涛; 邹逸昕
Original assignee: Guangdong University of Technology
Current assignee: Guangdong University of Technology
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2022-11-01
Anticipated expiration: 2042-08-23
Also published as: CN115070741A

Abstract

The invention discloses an adjustable power-assisted mechanical connecting piece which comprises a limiting joint type hinged connecting mechanism, a liquid pressure-equalizing power-assisted adjusting mechanism, a hinged locking assembly, a thigh fixing assembly and a shank fixing assembly. The invention belongs to the technical field of hinged connectors, and particularly relates to an adjustable power-assisted mechanical connector; the invention provides a liquid pressure equalizing type power-assisted adjusting mechanism based on a hydraulic transmission principle, the liquid pressure equalizing type power-assisted adjusting mechanism can be driven by mutual locking between a hinged locking component and a limiting joint type hinged connecting mechanism, when a piston pressing block is extruded, the prepressing amount and the power-assisted grade of a power-assisted spring body can be increased through liquid transmission, and the technical effect of quickly and conveniently adjusting power is realized.

Description

Adjustable boosting type mechanical connecting piece

Technical Field

The invention belongs to the technical field of hinged connecting pieces, and particularly relates to an adjustable boosting type mechanical connecting piece.

Background

The rotary connecting piece is a mechanical connecting mechanism for limiting the two hinge modules, can be applied to many aspects in life and production, and has some applications in various fields such as an external fixing auxiliary boosting mechanism for postoperative recovery of people with disabled legs, an auxiliary appliance for body building and even a hinge module with a rebounding function on mechanical equipment, wherein the external fixing auxiliary boosting mechanism is used for assisting the postoperative recovery of people with disabled legs; the fixing modes of the two parts are different and simple and stable, but the structure and the using process of the existing hinge connecting piece face the following problems:

a: the resilience of the rotating part is generally driven by a torsion spring, and the elasticity of the torsion spring can only change along with the change of the rotating angle and cannot be adjusted according to actual use requirements;

b: even if some hinged connecting pieces with adjustable power assistance exist, the power assistance is generally adjusted in different gears for convenience of use, and the continuous adjustment can be generally only carried out in an electric control mode, so that the complexity, the cost and the failure rate are greatly increased;

c: generally, in order to simplify the adjustment steps as much as possible, only one group of rebounding power assisting devices is arranged, and when the walking assisting device fails suddenly, a human body can lose control under the action of suddenly changed force, and the injury is huge for a patient who cannot completely control the legs per se.

Disclosure of Invention

Aiming at the situation and overcoming the defects of the prior art, the invention provides the adjustable boosting type mechanical connecting piece which has a simple and stable structure, does not need to be electrically controlled and is provided with multiple safety devices aiming at the analysis of the leg postures and the force exerting modes of all stages when a person walks; the invention relates to a hydraulic transmission principle-based hydraulic pressure type boosting adjusting mechanism, which is mainly divided into two stages of lifting and bending and back-pedaling and straightening of legs when people walk and move forward, and aims to solve the technical contradiction that the auxiliary boosting of walking and standing of a hinged connecting piece can not be too small (auxiliary force generation during standing and pedaling) or too large (resistance needs to be overcome during bending).

Moreover, the liquid pressure equalizing type boosting adjusting mechanisms are uniformly distributed in an annular mode and are mutually independent, when the individual liquid pressure equalizing type boosting adjusting mechanisms are damaged, the working process of the whole connecting piece is not greatly influenced, and the safety and the fault-tolerant rate of the device are greatly improved.

The technical scheme adopted by the invention is as follows: the invention provides an adjustable power-assisted mechanical connecting piece which comprises a limiting articulated hinge connecting mechanism, a liquid pressure-equalizing power-assisted adjusting mechanism, a hinge locking component, a thigh fixing component and a shank fixing component, wherein the thigh fixing component is fixedly connected to the limiting articulated hinge connecting mechanism; the limit joint type hinged connection mechanism is flexibly attached to a human body and provides a basic support function for the movement of the hinged locking assembly and the liquid pressure-equalizing type power-assisted adjusting mechanism, the shank fixing assembly is fixedly connected to the hinged locking assembly, and the device is fixed with the shank of the human body through the shank fixing assembly; the articulated locking assembly is rotatably arranged on the limiting articulated connecting mechanism, and can create and limit a moving space for the rotation of a human knee joint through the relative rotation of the articulated locking assembly and the limiting articulated connecting mechanism, the liquid pressure-equalizing type power-assisted adjusting mechanisms are annularly and uniformly arranged in the limiting articulated connecting mechanism, and the liquid pressure-equalizing type power-assisted adjusting mechanisms are annularly and uniformly arranged, so that the power-assisted size can be finely adjusted conveniently on the one hand, on the other hand, the fault tolerance and the safety of the device can be greatly improved through the mutually independent and mutually non-interfering liquid pressure-equalizing type power-assisted adjusting mechanisms, and the device can still be continuously used when the individual liquid pressure-equalizing type power-assisted adjusting mechanisms break down.

Further, spacing articulated coupling mechanism of articulated type includes arc wall annular gasbag inside lining and articulated basic subassembly, arc wall annular gasbag inside lining rigid coupling is curved arc wall annular gasbag inside lining through flexible and inner wall on articulated basic subassembly, can increase when wearing this device and human laminating degree and travelling comfort, avoids frequent friction.

Preferably, the articulated basic unit includes articulated dish of benchmark and hydraulic spring locating part, be equipped with articulated basal disc chassis on the articulated dish of benchmark, arc wall annular gasbag inside lining rigid coupling in the inboard on articulated basal disc chassis, arc wall annular gasbag inside lining and the articulated dish of benchmark are hollow loop configuration, can strengthen the ventilation effect of wearing the department, avoid excessive sweat, eczema scheduling problem, be equipped with articulated basal disc boss on the outer wall of the articulated dish of benchmark, articulated basal disc boss provides support and spacing for articulated locking assembly's rotation, guarantees that articulated locking assembly can only be according to fixed axial rotation, be equipped with articulated basal disc internal thread on the inner wall of the articulated dish of benchmark, hydraulic spring locating part rigid coupling in the outside of the articulated dish of benchmark, be equipped with two annular bosss on the hydraulic spring locating part, hydraulic spring locating part has all laid fixed baffle on two annular bosss, and fixed baffle constitute a plurality of liquid isostatic pressing formula helping hand adjustment mechanism's installation space, through the spacing of two annular bosss, can guarantee that articulated locking assembly is when being the arc compression that can not out of being out of control, can pop out.

Furthermore, liquid pressure-equalizing formula helping hand adjustment mechanism includes hydraulic drive subassembly and helping hand adjusting part, hydraulic drive subassembly and helping hand adjusting part annular equipartition are equipped with a plurality of groups, the hydraulic drive subassembly block is located in the two annular bosss, helping hand adjusting part slides and is located in the hydraulic drive subassembly.

Preferably, the hydraulic driving assembly comprises a special-shaped hydraulic cavity and a piston pressing block, the special-shaped hydraulic cavity is clamped in the double-annular boss, one end of the special-shaped hydraulic cavity is fixedly connected with the fixed partition plate, the piston pressing block is slidably arranged in the special-shaped hydraulic cavity, the piston pressing block is in sliding sealing contact with the inner wall of the special-shaped hydraulic cavity, a widened self-guiding sliding port is formed in the other end of the special-shaped hydraulic cavity, and when the piston pressing block is extruded, pressure can be transmitted to the special-shaped hydraulic cavity, so that the pressure of transmission fluid in the special-shaped hydraulic cavity is increased, and the power-assisted adjusting assembly is driven to move.

As a further preferred aspect of the present invention, the power adjustment assembly includes a semi-thick piston plate and a power spring body, the semi-thick piston plate is slidably engaged in the widened self-guiding sliding port, the semi-thick piston plate and the widened self-guiding sliding port are in sliding sealing contact, a spring paddle is disposed at an end of the semi-thick piston plate, and since the thickness of the semi-thick piston plate is smaller than the thickness of the special-shaped hydraulic chamber, it can be ensured that the extension and retraction movements of the piston press block and the semi-thick piston plate are not affected by each other in an extremely narrow space, one end of the power spring body is fixedly connected to the spring paddle, and the thigh fixing assembly and the shank fixing assembly can always have a tendency of rotating to a uniform straight line by the elastic force of the power spring body, so as to assist the leg muscles to keep the thighs and the shanks straight, thereby having a technical effect of assisting standing.

Further, articulated locking subassembly includes articulated connection pad and screw gland, articulated connection pad rotates and locates on the articulated dish of benchmark, screw gland and the articulated dish threaded connection of benchmark.

Preferably, be equipped with the rotatory spout of connection pad corresponding with articulated basal disc boss on the articulated connection pad, articulated connection pad passes through the rotatory spout of connection pad and rotates and locate articulated basal disc boss on, the outside annular equipartition of articulated connection pad is equipped with the connection pad boss, the side of connection pad boss is located to the other end of helping hand spring body, and through the rotation of articulated connection pad, can compress the helping hand spring body through the connection pad boss, increases the support elastic force that the helping hand spring body provided, be provided with the connection pad arc recess corresponding with dicyclo shape boss on the connection pad boss, dicyclo shape boss slides and locates in the connection pad arc recess, when screw gland is rotatory, can change the pressure to the piston briquetting to change the range of stretching out of half thick formula piston plate and the precompression volume of helping hand spring body, thereby change the size of helping hand.

As a further preference of the invention, the screw gland is provided with a gland screw thread part, the screw gland is in screw thread connection with the internal thread of the hinged base disc through the gland screw thread part, the screw gland is provided with a gland pressing disc for extruding the piston pressing block, the gland pressing disc is in sliding contact with the piston pressing block, anti-skid bosses are uniformly distributed on the gland pressing disc in an annular manner, and anti-scraping chamfers are arranged on the anti-skid bosses.

Furthermore, the thigh fixing assembly comprises a first arc-shaped fixing frame, a first lateral rigid connecting sheet and a first annular binding belt, the first arc-shaped fixing frame is fixedly connected to the reference hinging disc, the first lateral rigid connecting sheet is fixedly connected to the first arc-shaped fixing frame, and the first annular binding belt is fixedly connected to the first lateral rigid connecting sheet.

Furthermore, the shank fixing component comprises a second arc-shaped fixing frame, a second side rigid connecting sheet and a second annular binding belt, the second arc-shaped fixing frame is fixedly connected to the hinged connecting disc, the second side rigid connecting sheet is fixedly connected to the second arc-shaped fixing frame, and the second annular binding belt is fixedly connected to the second side rigid connecting sheet.

The invention with the structure has the following beneficial effects:

(1) The device is fixed with the thighs of the human body through the thigh fixing component, and is fixed with the shanks of the human body through the shank fixing component;

(2) The limit joint type hinged connection mechanism is flexibly attached to a human body and provides a basic support function for the movement of the hinged locking assembly and the liquid pressure equalizing type power-assisted adjusting mechanism;

(3) The relative rotation of the hinged locking component and the limiting joint type hinged connecting mechanism can create and limit a movement space for the rotation of the knee joint of the human body;

(4) Through the liquid pressure equalizing type boosting adjusting mechanisms which are uniformly distributed in an annular mode, on one hand, the boosting can be adjusted finely conveniently, on the other hand, the fault tolerance rate and the safety of the device can be improved to a great extent through the mutually independent and mutually non-interfering liquid pressure equalizing type boosting adjusting mechanisms, and the device can still be used continuously when the individual liquid pressure equalizing type boosting adjusting mechanisms break down;

(5) By the flexible arc-wall annular air bag lining with the arc-shaped inner wall, the fitting degree and comfort of the device with a human body can be improved when the device is worn, and frequent friction is avoided;

(6) The arc-wall annular air bag lining and the reference hinge plate are both of hollow annular structures, so that the ventilation effect of the wearing part can be enhanced, and the problems of excessive sweating, eczema and the like are avoided;

(7) The lug boss of the hinged base disc provides support and limit for the rotation of the hinged locking assembly, and the hinged locking assembly can only rotate in a fixed axial direction;

(8) The double annular bosses and the fixed partition plates form installation spaces of a plurality of liquid pressure equalizing type power-assisted adjusting mechanisms, and the hinged locking assembly can be prevented from being out of control and popping up when being compressed in an arc shape through the limitation of the double annular bosses;

(9) Because the thickness of the semi-thick piston plate is smaller than that of the special-shaped hydraulic cavity, the telescopic motion of the piston pressing block and the semi-thick piston plate can be ensured not to influence each other in a very narrow space;

(10) The thigh fixing assembly and the shank fixing assembly can always have the trend of rotating to a uniform straight line through the elasticity of the power-assisted spring body, so that the leg muscles are assisted to keep the thighs and the shanks straight, and the technical effect of assisting standing is achieved;

(11) When the screw gland rotates, the pressure on the piston pressing block can be changed, so that the extension amplitude of the half-thick piston plate and the precompression amount of the power assisting spring body are changed, and the power assisting size is changed.

Drawings

FIG. 1 is a perspective view of an adjustable power-assisted mechanical connector according to the present invention;

FIG. 2 is a front view of an adjustable mechanical connector according to the present invention;

FIG. 3 is a left side view of an adjustable power assisted mechanical linkage according to the present invention;

FIG. 4 is a top view of an adjustable mechanical connector according to the present invention;

FIG. 5 isbase:Sub>A cross-sectional view taken along section line A-A of FIG. 2;

FIG. 6 is a cross-sectional view taken along section line B-B of FIG. 3;

FIG. 7 is a cross-sectional view taken along section line C-C of FIG. 2;

FIG. 8 is a schematic structural view of a limiting joint type hinge connection mechanism of an adjustable power-assisted mechanical connection member according to the present invention;

FIG. 9 is a schematic structural view of a liquid pressure equalizing type power-assisted adjusting mechanism of an adjustable power-assisted mechanical connecting member according to the present invention;

FIG. 10 is a schematic structural view of a hinge locking assembly of an adjustable power mechanical connector according to the present invention;

FIG. 11 is a schematic structural view of a thigh fixing assembly of the adjustable boosting mechanical connecting element according to the present invention;

FIG. 12 is a schematic view of a shank attachment assembly of the adjustable assist mechanical connector of the present invention;

FIG. 13 is an enlarged view of a portion of FIG. 5 at I;

FIG. 14 is an enlarged view of a portion of FIG. 6 at II;

fig. 15 is a partial enlarged view of fig. 7 at iii.

The device comprises a limiting joint type hinged connecting mechanism, a liquid pressure equalizing type boosting adjusting mechanism, a limiting joint type hinged connecting mechanism, a limiting joint type hinged locking assembly, a thigh fixing assembly, a shank fixing assembly, a curved wall annular air bag lining, a 7, a hinged base assembly, a 8, a reference hinged disc, a 9, a hydraulic spring limiting piece, a 10, a hinged base disc chassis, a 11, a hinged base disc boss, a 12, a hinged base disc internal thread, a 13, a double annular boss, a 14, a fixed partition plate, a 15, a hydraulic driving assembly, a 16, a boosting adjusting assembly, a 17, a special-shaped hydraulic cavity, a 18, a piston press block, a 19, a semi-thick piston plate, a 20, a boosting spring body, a 21, a widened self-guiding sliding port, a 22, a spring stirring sheet, a 23, a hinged connecting disc, a 24, a screw gland, a 25, a connecting disc rotating chute, a 26, a connecting disc boss, a 27, a curved groove, a 28, a threaded gland, a 29, a pressing disc, an anti-skid boss, a 31, a scraping chamfer, a first fixing frame, a first rigid side connecting band, a first rigid side connecting disc, a second side band, a second rigid connecting disc, a second side connecting plate, a rigid connecting band and a third connecting plate.

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments; 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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.

As shown in fig. 1 to 15, the invention provides an adjustable power-assisted mechanical connecting piece, which comprises a limiting articulated joint type hinged connecting mechanism 1, a liquid pressure-equalizing power-assisted adjusting mechanism 2, a hinged locking component 3, a thigh fixing component 4 and a shank fixing component 5, wherein the thigh fixing component 4 is fixedly connected to the limiting articulated joint type hinged connecting mechanism 1, and the adjustable power-assisted mechanical connecting piece is fixed with a thigh of a human body through the thigh fixing component 4; the limiting joint type hinged connecting mechanism 1 is flexibly attached to a human body and has the function of providing basic support for the movement of the hinged locking component 3 and the liquid pressure-equalizing type power-assisted adjusting mechanism 2, the shank fixing component 5 is fixedly connected to the hinged locking component 3, and the device is fixed with the shank of the human body through the shank fixing component 5; articulated locking subassembly 3 rotates locates on spacing articulated coupling mechanism 1, relative rotation through articulated locking subassembly 3 and spacing articulated coupling mechanism 1, can create and limit activity space for the rotation of human knee joint, the annular equipartition of liquid pressure-equalizing formula helping hand adjustment mechanism 2 is located in spacing articulated coupling mechanism 1, liquid pressure-equalizing formula helping hand adjustment mechanism 2 through the annular equipartition, on the one hand, the convenience is finely tuned to the helping hand size, on the other hand can be through mutual independence, the liquid pressure-equalizing formula helping hand adjustment mechanism 2 of mutually noninterfere, can greatly improve the fault-tolerant rate and the security of this device, guarantee this device still can continue to use when individual liquid pressure-equalizing formula helping hand adjustment mechanism 2 breaks down.

Spacing articulated coupling mechanism 1 includes arc wall annular gasbag inside lining 6 and articulated

foundation component

7, and 6 rigid couplings of arc wall annular gasbag inside lining are curved arc wall annular gasbag inside lining 6 through flexible and inner wall on articulated foundation component 7, can increase this device when wearing and human laminating degree and travelling comfort, avoid frequent friction.

Articulated basic unit 7 includes articulated dish 8 of benchmark and hydraulic spring locating part 9, be equipped with articulated base plate chassis 10 on the articulated dish 8 of benchmark, arc wall annular gasbag inside lining 6 rigid coupling in the inboard of articulated base plate chassis 10, arc wall annular gasbag inside lining 6 and articulated dish 8 of benchmark are hollow loop configuration, can strengthen the ventilation effect of wearing the department, avoid excessive perspiration, the scheduling problem, be equipped with articulated base plate boss 11 on the outer wall of articulated dish 8 of benchmark, articulated base plate boss 11 provides support and spacing for the rotation of articulated locking subassembly 3, guarantee that articulated locking subassembly 3 can only be according to fixed axial rotation, be equipped with articulated base plate internal thread 12 on the inner wall of articulated dish 8 of benchmark, hydraulic spring locating part 9 rigid coupling in the outside of articulated dish 8 of benchmark, be equipped with two annular boss 13 on hydraulic spring locating part 9, hydraulic spring locating part 9 all has laid fixed baffle 14 on two annular boss 13, two annular boss 13 and fixed baffle 14 constitute the installation space that a plurality of liquid pressure equalizing type helping hand adjustment mechanism 2, spacing through two annular boss 13, can guarantee that articulated subassembly 3 is when the arc is compressing, can not out of control, can not out of failure.

The thigh fixing component 4 comprises a first arc-shaped fixing frame 32, a first lateral rigid connecting piece 33 and a first annular binding belt 34, wherein the first arc-shaped fixing frame 32 is fixedly connected to the reference hinge plate 8, the first lateral rigid connecting piece 33 is fixedly connected to the first arc-shaped fixing frame 32, and the first annular binding belt 34 is fixedly connected to the first lateral rigid connecting piece 33.

The hinge locking assembly 3 comprises a hinge connecting disc 23 and a screw pressing cover 24, the hinge connecting disc 23 is rotatably arranged on the reference hinge disc 8, and the screw pressing cover 24 is in threaded connection with the reference hinge disc 8.

Be equipped with the rotatory spout 25 of connection pad corresponding with articulated base disc boss 11 on the articulated connection pad 23, articulated connection pad 23 rotates through the rotatory spout 25 of connection pad and locates on articulated base disc boss 11, the annular equipartition in the outside of articulated connection pad 23 is equipped with connection pad boss 26, the side of connection pad boss 26 is located to the other end of helping hand spring body 20, through the rotation of articulated connection pad 23, can compress helping hand spring body 20 through connection pad boss 26, the support elasticity that increase helping hand spring body 20 provided, be provided with the connection pad arc recess 27 corresponding with double annular boss 13 on connection pad boss 26, double annular boss 13 slides and locates in connection pad arc recess 27, when screw gland 24 is rotatory, can change the pressure to piston briquetting 18, thereby change the range of extension of half thick formula piston plate 19 and the precompression volume of helping hand spring body 20, thereby change the size of helping hand.

Be equipped with gland screw portion 28 on the screw gland 24, screw gland 24 is equipped with the gland pressure disk 29 that is used for extrudeing piston briquetting 18 through gland screw portion 28 and articulated base plate internal thread 12 threaded connection on the screw gland 24, gland pressure disk 29 and piston briquetting 18 sliding contact, and annular equipartition is equipped with anti-skidding boss 30 on the gland pressure disk 29, is equipped with on the anti-skidding boss 30 and prevents scraping chamfer 31.

The lower leg fixing component 5 comprises a second arc-shaped fixing frame 35, a second lateral rigid connecting sheet 36 and a second annular binding belt 37, the second arc-shaped fixing frame 35 is fixedly connected to the hinged connecting disc 23, the second lateral rigid connecting sheet 36 is fixedly connected to the second arc-shaped fixing frame 35, and the second annular binding belt 37 is fixedly connected to the second lateral rigid connecting sheet 36.

The liquid pressure equalizing type power-assisted adjusting mechanism 2 comprises a hydraulic driving assembly 15 and a power-assisted adjusting assembly 16, a plurality of groups are annularly and uniformly distributed on the hydraulic driving assembly 15 and the power-assisted adjusting assembly 16, the hydraulic driving assembly 15 is clamped in the double-annular boss 13, and the power-assisted adjusting assembly 16 is slidably arranged in the hydraulic driving assembly 15.

The hydraulic driving assembly 15 comprises a special-shaped hydraulic cavity 17 and a piston pressing block 18, the special-shaped hydraulic cavity 17 is clamped in the double-annular boss 13, one end of the special-shaped hydraulic cavity 17 is fixedly connected with the fixed partition plate 14, the piston pressing block 18 is arranged in the special-shaped hydraulic cavity 17 in a sliding mode, the piston pressing block 18 is in sliding sealing contact with the inner wall of the special-shaped hydraulic cavity 17, a widened self-guiding sliding port 21 is formed in the other end of the special-shaped hydraulic cavity 17, when the piston pressing block 18 is extruded, pressure can be transmitted to the special-shaped hydraulic cavity 17, the pressure of transmission liquid in the special-shaped hydraulic cavity 17 is increased, and the power-assisted adjusting assembly 16 is driven to move.

The power-assisted adjusting assembly 16 comprises a semi-thick piston plate 19 and a power-assisted spring body 20, the semi-thick piston plate 19 is arranged in the widened self-guiding sliding port 21 in a clamping sliding mode, the semi-thick piston plate 19 is in sliding sealing contact with the widened self-guiding sliding port 21, a spring shifting sheet 22 is arranged at the end portion of the semi-thick piston plate 19, the thickness of the semi-thick piston plate 19 is smaller than that of the special-shaped hydraulic cavity 17, therefore, in an extremely narrow space, the telescopic motion of the piston pressing block 18 and the semi-thick piston plate 19 can be guaranteed not to be affected mutually, one end of the power-assisted spring body 20 is fixedly connected onto the spring shifting sheet 22, through the elasticity of the power-assisted spring body 20, the thigh fixing assembly 4 and the shank fixing assembly 5 can always have the trend of rotating to a uniform straight line, therefore, the auxiliary leg muscles keep the thighs and the shanks straight, and the technical effect of auxiliary standing is achieved.

When the device is used specifically, firstly, a user needs to fix the first annular bandage 34 at the thigh and fix the second annular bandage 37 at the shank to finish the wearing and fixing of the device;

when the booster spring needs to stand for a long time, the pressing cover pressing plate 29 can rotate towards the direction of the limiting articulated type hinged connecting mechanism 1 to approach in a rotating mode through the threaded pressing cover 24, the extrusion force on the piston pressing block 18 is increased, and the semi-thick piston plate 19 can be pushed out by the transmission liquid along with the increase of the range of the piston pressing block 18 pressed into the special-shaped hydraulic cavity 17, so that the storage space of the booster spring body 20 is compressed, and the precompression amount and the elasticity of the booster spring body 20 are increased;

when walking is needed, the screw gland 24 needs to be rotated reversely to reduce the precompression amount and the elastic force of the power spring body 20, so that the hinge connecting disc 23 and the reference hinge disc 8 are in an easy-to-rotate state, and the resistance to continuous rotation increases with the increase of the rotation angle;

in the walking process, the legs are easy to bend from straight to straight, the difficulty is still low although the resistance of the power-assisted spring body 20 exists, the muscles can be exercised through the resistance, and the recovery of a patient is facilitated;

in the process that the legs are kicked to exert force and return to be straight after being bent, the whole body needs to be pushed upwards, so that difficulty is high, assistance can be provided for walking through the elastic force of the assistance spring body 20, and the possibility of out-of-control force can be reduced;

during the different stages of patient recovery, the patient can adjust the screw gland 24 as required, thereby continuously adjusting the magnitude of the assisting force of the device.

The above is the overall working process of the invention, and the steps are repeated when the device is used next time.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an adjustable helping hand formula mechanical connecting piece, includes that thigh fixed subassembly (4) and shank fixed subassembly (5), can relative rotation between thigh fixed subassembly (4) and shank fixed subassembly (5), its characterized in that: the thigh fixing assembly (4) is fixedly connected to the limiting articulated connecting mechanism (1), the shank fixing assembly (5) is fixedly connected to the articulated locking assembly (3), the articulated locking assembly (3) is rotatably arranged on the limiting articulated connecting mechanism (1), and the liquid pressure equalizing type assistance adjusting mechanisms (2) are annularly and uniformly distributed in the limiting articulated connecting mechanism (1); the limiting joint type hinge connecting mechanism (1) comprises an arc-wall annular air bag lining (6) and a hinge base component (7), wherein the arc-wall annular air bag lining (6) is fixedly connected to the hinge base component (7);

the hinged base assembly (7) comprises a reference hinged disc (8) and a hydraulic spring limiting piece (9), a hinged base disc chassis (10) is arranged on the reference hinged disc (8), the arc-wall annular air bag lining (6) is fixedly connected to the inner side of the hinged base disc chassis (10), a hinged base disc boss (11) is arranged on the outer wall of the reference hinged disc (8), a hinged base disc internal thread (12) is arranged on the inner wall of the reference hinged disc (8), the hydraulic spring limiting piece (9) is fixedly connected to the outer side of the reference hinged disc (8), a double annular boss (13) is arranged on the hydraulic spring limiting piece (9), and fixed partition plates (14) are annularly distributed on the double annular boss (13) of the hydraulic spring limiting piece (9);

the liquid pressure equalizing type power-assisted adjusting mechanism (2) comprises a hydraulic driving assembly (15) and a power-assisted adjusting assembly (16), a plurality of groups of the hydraulic driving assembly (15) and the power-assisted adjusting assembly (16) are annularly and uniformly distributed, the hydraulic driving assembly (15) is clamped in a double-annular boss (13), and the power-assisted adjusting assembly (16) is slidably arranged in the hydraulic driving assembly (15);

the hydraulic drive assembly (15) comprises a special-shaped hydraulic cavity (17) and a piston pressing block (18), the special-shaped hydraulic cavity (17) is clamped in the double-annular boss (13), one end of the special-shaped hydraulic cavity (17) is fixedly connected with the fixed partition plate (14), the piston pressing block (18) is slidably arranged in the special-shaped hydraulic cavity (17), the piston pressing block (18) is in sliding sealing contact with the inner wall of the special-shaped hydraulic cavity (17), and a widened self-guiding sliding port (21) is formed in the other end of the special-shaped hydraulic cavity (17);

helping hand adjusting part (16) are including half thick formula piston plate (19) and helping hand spring body (20), half thick formula piston plate (19) block is slided and is located and widen in self-steering sliding port (21), sliding seal contacts between half thick formula piston plate (19) and the widening self-steering sliding port (21), the tip of half thick formula piston plate (19) is equipped with spring plectrum (22), the one end rigid coupling of helping hand spring body (20) is on spring plectrum (22).

2. An adjustable power-assisted mechanical connector as claimed in claim 1, wherein: articulated locking subassembly (3) are including articulated connection pad (23) and screw gland (24), articulated connection pad (23) are rotated and are located on the articulated dish of benchmark (8), screw gland (24) and the articulated dish of benchmark (8) threaded connection.

3. An adjustable force assisted mechanical connector as claimed in claim 2, wherein: be equipped with on articulated connection pad (23) with the rotatory spout of the corresponding connection pad (25) of articulated basal disc boss (11), articulated connection pad (23) are rotated through the rotatory spout of connection pad (25) and are located on articulated basal disc boss (11), connection pad boss (26) have all been laid to the outside ring shape of articulated connection pad (23), the side of connection pad boss (26) is located to the other end of helping hand spring body (20), be provided with on connection pad boss (26) with the corresponding connection pad arc recess (27) of dual ring shape boss (13), dual ring shape boss (13) slide locate in connection pad arc recess (27).

4. An adjustable force assisted mechanical connector as claimed in claim 3, wherein: be equipped with gland screw portion (28) on screw gland (24), screw gland (24) are through gland screw portion (28) and articulated base plate internal thread (12) threaded connection, be equipped with gland pressure disk (29) that are used for extrudeing piston briquetting (18) on screw gland (24), gland pressure disk (29) and piston briquetting (18) sliding contact, antiskid boss (30) have all been laid to the annular on gland pressure disk (29), be equipped with on antiskid boss (30) and prevent scraping chamfer (31).

5. An adjustable force assisted mechanical connector as claimed in claim 4, wherein: thigh fixed part (4) include arc mount (32), side rigidity connection piece (33) and annular bandage (34), arc mount (32) rigid coupling is on benchmark articulated dish (8), side rigidity connection piece (33) rigid coupling is on arc mount (32), annular bandage (34) rigid coupling is on side rigidity connection piece (33).

6. An adjustable force assisted mechanical connector as claimed in claim 5, wherein: the shank fixing component (5) comprises a second arc-shaped fixing frame (35), a second lateral rigid connecting sheet (36) and a second annular binding belt (37), the second arc-shaped fixing frame (35) is fixedly connected to the hinged connecting disc (23), the second lateral rigid connecting sheet (36) is fixedly connected to the second arc-shaped fixing frame (35), and the second annular binding belt (37) is fixedly connected to the second lateral rigid connecting sheet (36).