CN109395364B - A kind of list leg disabled person's winter sports auxiliary device - Google Patents

Abstract

The invention discloses a kind of single leg disabled person's winter sports auxiliary devices, belong to sports apparatus field.The device includes skis, further includes: supporting leg comprising thigh arm, shank arm and support arm, one end of thigh arm and one end of shank arm are hinged, and the other end of shank arm is hinged on skis；First fixed device, for thigh arm to be fixed to amputation；Locking system comprising driving gear, drive rack, at least a pair of of locking pawl and the latch for locking locking pawl, driving gear are arranged in the end of support arm and rotate with the rotation of support arm；One end of locking pawl is hinged in drive rack, and the second slide bar is provided on shank arm, and the second slide bar is slidably disposed in locking sliding slot.The present invention avoids the problem that turning torque caused by two supporting legs, can simulate the action process of healthy leg completely；Avoid due to shank arm and skis hingedly caused by unstability.

Description

A kind of list leg disabled person's winter sports auxiliary device

Technical field

The present invention relates to sports apparatus field, in particular to a kind of single leg disabled person's winter sports auxiliary device.

Background technique

Skiing is that sportsman transports skis in the enterprising scanning frequency degree of snowfield, jump and the contest of downhill race in sole It is dynamic.

In recent years, skiing is pursued by numerous sports enthusiasts.Ski pole auxiliary is relied primarily on during skiing, By leg pedaling skis, onward impulse is provided.For with acclive ski slide, forward lean keeps center of gravity forward, it is not necessarily to Leg provides power and can also easily complete to slide.

Friction is small for skis and snowfield when due to skiing, be easy to cause gravity center instability and can not effectively slide Or it falls down.For the people of both legs health, need effectively slide by certain professional training.And leg is cut For the disabled person of limb, due to single leg support, it is extremely difficult to barycentre steadiness, they think that the fast of experience skiing sympathetic seems especially tired It is difficult.

Occurs the auxiliary device of some auxiliary leg handicapped persons in the prior art, such as application No. is 201711170812.0 Chinese invention patent, it discloses a kind of single leg disabled person's winter sports auxiliary devices, comprising: main frame, fixed device, master Supporting leg, auxiliary leg and skis, the main frame are U-shaped structure, are provided with fixed device, the main frame on the inside of U-shaped structure The left end of frame is provided with main supporting leg, and main supporting leg lower end connects a skis, and the main frame right end passes through globular hinge It is connected with auxiliary leg, the lower end of leg is assisted to connect a skis；Human body can be fixed in main frame, pass through main supporting leg It is supported, while disabled leg is replaced by auxiliary leg, the pedaling of skiing is completed by auxiliary leg, and then simulate normal Skiing movement, so that the slider of single leg deformity is experienced normal skiing and experience.

It provides support force by main supporting leg, and normal skiing movement is simulated by auxiliary leg.However in practical skiing During, when turning to, it is to need both legs to side inclination and body inclination makes deviation of gravity center supporting point, realizes turning；? During normal chemical, somagenic need leans forward so that center of gravity is close forward, and is encountering the biggish region of the gradient, also often needs It squats down so that center of gravity reduces, raising stability prevents from causing body shakiness since center of gravity is excessively high to fall down.And above-mentioned design In, due to the presence of main supporting leg and auxiliary leg, in addition healthy leg, three-point shape is at a supporting surface, when both legs roll, main support Torque is formed between leg and auxiliary leg, it is difficult to it fast and effeciently realizes and rolls, and main supporting leg does not have due to being rigid Curved function, therefore while wanting to lower the center of gravity, also cannot achieve.Therefore its use scope has significant limitation.

Summary of the invention

The present invention provides a kind of single leg disabled person's winter sports auxiliary device, and it is disabled to can solve single leg in the prior art People's winter sports auxiliary device is difficult to quickly and effectively realize inclination and can not effectively realize the problem of lowering the center of gravity.

A kind of list leg disabled person's winter sports auxiliary device, including skis, further includes:

Supporting leg comprising thigh arm, shank arm and support arm, one end of one end of the thigh arm and the shank arm It being hinged, the other end of the shank arm is hinged on the skis, and one end of the support arm is hinged to the shank arm, Resigning sliding slot is offered thereon, link block is provided on the thigh arm, is provided with the first slide bar on the link block, described One slide bar is slidably disposed in the resigning sliding slot；

First fixed device, for thigh arm to be fixed to amputation；

Locking system comprising driving gear, drive rack, at least a pair of of locking pawl and for locking pawl described in locking Latch, the latch are fixed on the skis, and the end of the support arm is arranged in simultaneously in the driving gear It is rotated with the rotation of support arm, driving chamber is offered in the shank arm, the drive rack is slidably disposed on described In driving chamber, the driving gear is meshed with the drive rack；One end of the locking pawl is hinged on the drive rack On, locking sliding slot is offered in the locking pawl, the second slide bar is provided on the shank arm, second slide bar is slideably It is arranged in the locking sliding slot, the locking claw portion exposes to the shank arm and at least with the first working condition and the Two working conditions；

When being in the first working condition, the thigh arm and the shank arm are in upright state, the drive rack to Lower movement, the locking pawl merges with latch matching is locked by the latch；

When being in the second working condition, the thigh arm and the shank arm are in bending state, the drive rack to Upper movement, the locking pawl are separated with the latch, and the shank arm can be rotated relative to skis.

More preferably, the latch has a hook part, and when the drive rack moves down, the locking pawl is resisted against the hook In portion, rotated before and after skis for limiting shank arm.

More preferably, further include lock control mechanism and ski stick, lock control mechanism include the first wireless receiving module, the first power supply, First processor, the first electromagnet, locking spring and check lock lever, first power supply are used for the first wireless receiving mould Block, the first processor and first electromagnet power supply, first wireless receiving module, first electromagnet are believed Number it is connected to the first processor, first for communicating with first wireless receiving module is provided on the ski stick Wireless transmitter module offers the locking hole through the resigning sliding slot on the support arm, is offered on the link block One accommodating groove, first electromagnet are arranged in first accommodating groove, and described locking spring one end is connected to described first Electromagnet, the other end are connected to the check lock lever, and the check lock lever is slidably disposed on the link block, the check lock lever At least there is the first working condition and the second working condition；

When being in the first working condition, the first electromagnet power supply, the locking spring compresses and drives the lock Tight bar is detached from the locking hole；

When being in the second working condition, the first electromagnet power-off, the locking spring resets and drives the lock Tight bar is inserted into the locking hole, for limiting the sliding of first slide bar.

It more preferably, further include linkage comprising the second fixed device, the connection being arranged on the described second fixed device Seat, second source, the second wireless receiving module, second processor, the second electromagnet and interlocking bar are moved, is opened up in the linkage seat There is linkage chamber, the second source is used for second wireless receiving module, the second processor and second electromagnetism Iron is powered, and the second wireless transmitter module for communicating with second wireless receiving module, institute are provided on the ski stick The upper end for stating linkage chamber offers first line of a couplet movable tooth, and the side that the interlocking bar corresponds to the first line of a couplet movable tooth is provided with second line of a couplet movable tooth, One end of the interlocking bar, which is protruded into the intracavitary, other end of the linkage and can be slided up and down to, to be arranged on the thigh arm, and described the Two electromagnet are located at the top of the first line of a couplet movable tooth, when second electromagnet is powered, for adsorbing the interlocking bar so that institute It states first line of a couplet movable tooth and the second line of a couplet movable tooth is meshed；When second electromagnet powers off, the first line of a couplet movable tooth and the lower linkage Tooth is separated.

More preferably, sliding slot is offered on the thigh arm, the interlocking bar is provided with cunning far from the end of the linkage chamber Block, the sliding block are slidably disposed in the sliding slot.

The present invention provides a kind of single leg disabled person's winter sports auxiliary device, and an only supporting leg avoids two supports Caused by leg the problem of turning torque, thigh arm and shank arm are hinged, and shank arm and skis are hinged, by support arm, When thigh arm hypsokinesis, strength is transferred to by shank arm by support arm, shank arm is made to lean forward, the dynamic of healthy leg can be simulated completely Make process, operation when for needing to lower the center of gravity can be synchronised with healthy leg；Can be in supporting leg using locking system When upright state, avoid since hingedly generated unstability, latch lock locking pawl for shank arm and skis, at this time Shank arm can not be rotated arbitrarily front and back, therefore can play effective supporting role.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram one of single leg disabled person's winter sports auxiliary device provided by the invention；

Fig. 2 is partial enlarged view at A in Fig. 1；

Fig. 3 is partial enlarged view at B in Fig. 1；

Fig. 4 is partial enlarged view at C in Fig. 1；

Fig. 5 is a kind of structural schematic diagram two of single leg disabled person's winter sports auxiliary device provided by the invention；

Fig. 6 is partial enlarged view at D in Fig. 5；

Fig. 7 is partial enlarged view at E in Fig. 5；

Fig. 8 is the left view of Fig. 1；

Fig. 9 is partial enlarged view at F in Fig. 8；

Figure 10 is a kind of systematic schematic diagram one of single leg disabled person's winter sports auxiliary device provided by the invention；

Figure 11 is a kind of systematic schematic diagram two of single leg disabled person's winter sports auxiliary device provided by the invention.

Description of symbols:

10, the first bandage, 11, thigh arm, 111, link block, 12, shank arm, 121, guide groove, 13, support arm, 131, Resigning sliding slot, 132, locking hole, 14, skis, 141, latch, 20, locking system, 21, driving gear, 22, drive rack, 221, connecting rod, 23, locking pawl, 231, locking sliding slot, the 31, first electromagnet, 32, locking spring, 33, check lock lever, 40, second is solid Determine device, 41, linkage seat, 411, linkage chamber, 412, first line of a couplet movable tooth, the 42, second electromagnet, 43, interlocking bar, 431, lower linkage Tooth.

Specific embodiment

With reference to the accompanying drawing, the specific embodiment of the present invention is described in detail, it is to be understood that of the invention Protection scope be not limited by the specific implementation.

Embodiment one:

As shown in Figures 1 to 7, a kind of single leg disabled person's winter sports auxiliary device provided in an embodiment of the present invention, including Skis 14, further includes:

Supporting leg comprising thigh arm 11, shank arm 12 and support arm 13, one end of the thigh arm 11 and the shank One end of arm 12 is hinged, and thigh arm 11 and shank arm 12 is allow to simulate the flexure operation of healthy leg arm, the shank arm 12 The other end be hinged on the skis 14, can be overturn with respect to skis 14 towards before and after face direction with shank arm 12, mould Rotary movement at quasi- ankle, as shown in Fig. 2, one end of the support arm 13 is hinged to the shank arm 12, on support arm 13 Resigning sliding slot 131 is offered, link block 111 is provided on the thigh arm 11, an accommodating groove is offered on link block 111, is received It receives and is provided with the first slide bar in slot, first slide bar is slidably disposed in the resigning sliding slot 131, as Fig. 6 can be clear The connection structure for finding out the first slide bar and resigning sliding slot 131 of Chu, as shown in Fig. 1, Fig. 5 and Fig. 6, when thigh 11 hypsokinesis of arm, There is no stress for shank arm 12 at this time, therefore link block 111 can relatively rotate with support arm 13, and the first slide bar is in cunning of stepping down The interior sliding of slot 131, drives support arm 13 to generate rotation, and power can be transferred to shank arm 12 when the rotation of support arm 13, to make Shank arm 12 leans forward, to simulate the rotation between the thigh of healthy leg and shank；

First fixed device, for thigh arm 11 to be fixed to amputation, the first fixed device can be flexible bandage 10 etc. Can fixed structure, bandage both ends are provided with primary and secondary velcro, convenient for being fixed to huckle；

Locking system 20 comprising drive gear 21, drive rack 22, at least a pair of of locking pawl 23 and be used for described in locking The latch 141 of locking pawl 23, the latch 141 are fixed on the skis 14, and latch 141 is two, position In the two sides of shank arm 12, to carry out locking operation to two locking pawl 23, as shown in Fig. 2, the driving gear 21 is arranged The support arm 13 end and rotated with the rotation of support arm 13, driving gear 21 can be directly at the end of support arm 13 Portion opens up, and can also be mounted on the articulated shaft of support arm 13 with Driven by Coaxial, when realizing that support arm 13 rotates, drives gear 21 It can rotate synchronously, driving chamber is offered in the shank arm 12, offers notch on the side wall of driving chamber, for accommodating support Arm 13 protrudes into, and guide groove 121 is offered in driving chamber, and the drive rack 22 is slidably disposed in guide groove 121, guiding The track of slot 121 is vertically arranged, and is engaged when driving gear 21 rotates with drive rack 22, drive it is sliding in drive rack 22 or under It is sliding；As shown in figure 3, one end of the locking pawl 23 is hinged in the drive rack 22, it is preferred that at the bottom of drive rack 22 One connecting rod 221 of end fixed setting, two locking pawl 23 are respectively hinged at the both ends of connecting rod 221, offer in the locking pawl 23 Locking sliding slot 231 opens up notch on the side wall of shank arm 12, stretches out for accommodating locking pawl 23, is arranged on the shank arm 12 There is the second slide bar, second slide bar is slidably disposed in the locking sliding slot 231, and 23 part of locking pawl exposes to The shank arm 12, as shown in figure 5, driving support arm 13 to rotate when thigh 11 hypsokinesis of arm, support arm 13 will drive when rotating Gear 21 is driven to rotate, driving gear 21 is always maintained at drive rack 22 to be engaged, therefore be will drive and slided in drive rack 22, by It is hinged on connecting rod 221 in locking pawl 23 and has the second slide bar to the position-limiting action of locking sliding slot 231, therefore will drive locking pawl 23 inwardly collapse while moving upwards, and locking pawl 23 is made to be detached from latch 141, and locking pawl 23 is detached from 141 gaskin of latch Arm 12 is unrestricted, can produce overturning, therefore by support arm 13, shank arm 12 leans forward, completely simulation squatting motion, in cunning It, can be with the synchronous flexure operation of leg realizations of health, raising stabilization when needing decentralization to improve stability during snow Property；And when needing upright, thigh arm 11 tends to vertically, support arm 13 be driven to act, and driving gear 21 drives drive rack 22 Glide, drive rack 22 drive connecting rod 221 be further driven to locking pawl 23 downwards, expand outwardly to being resisted against latch 141 On, when locking pawl 23 is resisted against on latch 141, since front-rear direction is restricted, shank arm 12 cannot be random at this time Rotation avoids the weight of body from all relying on healthy leg so as to provide effective support to support the fatigue to caused by And it is unstable caused by unilateral stress.

Embodiment two:

On the basis of example 1, the latch 141 has a hook part, described when the drive rack 22 moves down Locking pawl 23 is resisted against on the hook part, is rotated before and after skis 14 for limiting shank arm 12.

Embodiment three:

On the basis of example 1, as shown in fig. 6, due to leaning forward when skiing, and the length of resigning sliding slot 131 is certain, When the first slide bar is resisted against the top of resigning sliding slot 131, thigh arm 11 and shank arm 12, at this time can be in relatively fixed state Effectively support body wt, but due to being difficult to be always maintained at the state of forward lean during skiing, especially for begining to learn Person, it is relatively difficult, therefore in order to be maintained under any state, can be stablized with free switching support state and it is rotatable from By state, the invention also includes lock control mechanism and ski stick, lock control mechanism includes the first wireless receiving module, the first power supply, the One processor, the first electromagnet 31, locking spring 32 and check lock lever 33, check lock lever 33 are made of ferrimagnet, can with it is logical The first electromagnet 31 under electricity condition attracts each other, and as shown in Fig. 5, Fig. 6 and Figure 11, first power supply is used for described first Wireless receiving module, the first processor and first electromagnet 31 power supply, lockhole apparatus are arranged in thigh arm 11, institute State the first wireless receiving module, the equal signal of first electromagnet 31 is connected to the first processor, set on the ski stick It is equipped with the first wireless transmitter module for communicating with first wireless receiving module, offers and runs through on the support arm 13 The locking hole 132 of the resigning sliding slot 131 offers the first accommodating groove on the link block 111, and first electromagnet 31 is set It sets in first accommodating groove, described 32 one end of locking spring is connected to first electromagnet 31, the other end is connected to institute Check lock lever 33 is stated, the slot for accommodating check lock lever 33 is offered on link block 111, it is described for being oriented to check lock lever 33 Check lock lever 33 is slidably disposed in slot.

Need thigh arm 11 and shank arm 12 relatively fixed, when providing support force, forward lean make the first slide bar against On the top of resigning sliding slot 131, by the first button being arranged on ski stick, by the first wireless transmitter module to the first nothing Line receiving module sends signal, and the first wireless receiving module receives signal and is sent to processor, and processor controls the first electromagnetism Iron 31 powers off, and check lock lever 33 stretches out under the action of the spring, passes through locking hole 132, and the first slide bar is locked and is limited, at this time thigh When 11 hypsokinesis of arm, support arm 13 will not relatively rotate, and power is directly transferred to shank arm 12, and at this time shank arm 12 due to Effect by locking pawl 23 can not also relatively rotate, therefore thigh arm 11 and shank arm 12 are relatively fixed, can play Stable supporting role.

When needing thigh arm 11 and shank arm 12 to be relatively rotatable to each other, when adjusting center of gravity, by being arranged on ski stick Third button, send signal to the first wireless receiving module by the first wireless transmitter module, the first wireless receiving module connects The collection of letters number is simultaneously sent to processor, and processor controls the first electromagnet 31 and is powered, and electromagnet, which is powered, generates suction, drive check lock lever 33 move back, and are detached from locking hole 132, and the first slide bar and resigning sliding slot 131 can relatively move at this time, thus by above-mentioned principle, It can relatively rotate between thigh arm 11 and shank arm 12 and skis 14, consequently facilitating adjustment center of gravity.

Example IV:

It further include linkage and ski stick on the basis of embodiment one, two or three as shown in Fig. 8, Fig. 9 and Figure 11, Linkage includes the second fixed device 40, the linkage seat 41 being arranged on the described second fixed device 40, second source, second Wireless receiving module, second processor, the second electromagnet 42 and interlocking bar 43, interlocking bar 43 are made of ferrimagnet, can It attracts each other with the second electromagnet 42 under energized state, the second fixation device 40 can be knot identical with the first fixation device Structure, or other fixed structures in the prior art offer linkage chamber 411, second electricity in the linkage seat 41 Source is used to power to second wireless receiving module, the second processor and second electromagnet 42, the ski stick On be provided with the second wireless transmitter module for communicating with second wireless receiving module, the upper end of the linkage chamber 411 First line of a couplet movable tooth 412 is offered, the side of the corresponding first line of a couplet movable tooth 412 of the interlocking bar 43 is provided with second line of a couplet movable tooth 431, described One end of interlocking bar 43 is protruded into the linkage chamber 411, the other end can slide up and down to and be arranged on the thigh arm 11, described Second electromagnet 42 is located at the top of the first line of a couplet movable tooth 412, when second electromagnet 42 is powered, for adsorbing the linkage Bar 43 is so that the first line of a couplet movable tooth 412 and the second line of a couplet movable tooth 431 are meshed；Second electromagnet 42 power off when, it is described on Linkage tooth 412 is separated with the second line of a couplet movable tooth 431.

Due to being frequently necessary to both legs and close up swing when skiing, to realize some beautiful skiing movements and turning Deng needing left and right leg is synchronous to carry out.But brake when and other certain skiing movement then need left and right leg separate.It is double when needing When leg closes up synchronous hunting, wirelessly connect by the second wireless transmitter module to second by the third button being arranged on ski stick It receives module and sends signal, the second wireless receiving module transmits signals to second processor, and second processor controls the second electromagnetism Iron 42 is powered, and the second electromagnet 42 adsorbs interlocking bar 43, and one end of interlocking bar 43 is slidably arranged on thigh arm 11, and interlocking bar 43 when moving up, and first line of a couplet movable tooth 412 and second line of a couplet movable tooth 431 can be made to be meshed, even if not engaging just when cooperation, two legs are only needed gently Differential is from or close to can make first line of a couplet movable tooth 412 and second line of a couplet movable tooth 431 be meshed, so that healthy leg can be by linkage when acting Bar 43 drives supporting leg synchronization action.

And when needing separable, it only need to be by the 4th button that is arranged on ski stick by the second wireless transmitter module Signal is sent to the second wireless receiving module, the second wireless receiving module transmits signals to second processor, second processor It controls the power-off of the second electromagnet 42 and loses suction, interlocking bar 43 glides under Gravitative Loads, makes when second electromagnet 42 powers off First line of a couplet movable tooth 412 is mutually separated with second line of a couplet movable tooth 431, and healthy leg and supporting leg can be move freely at this time.

Interlocking bar 43 is detached from out of linkage chamber 411 in order to prevent, some position restrainers can also be arranged in linkage chamber 411 Structure, in addition, being limited since two legs of people separate distance, leads to prevent interlocking bar 43 to be detached from out of linkage chamber 411 It crosses the rationally length of setting interlocking bar 43 and the depth of linkage chamber 411 can guarantee that interlocking bar 43 will not take off out of linkage chamber 411 From.

Specifically, sliding slot is offered on the thigh arm 11, the interlocking bar 43 is set far from the end of the linkage chamber 411 It is equipped with sliding block, the sliding block is slidably disposed in the sliding slot.

Disclosed above is only several specific embodiments of the invention, and still, the embodiment of the present invention is not limited to this, is appointed What what those skilled in the art can think variation should all fall into protection scope of the present invention.

Claims (5)

1. a kind of list leg disabled person's winter sports auxiliary device, including skis, which is characterized in that further include:

Supporting leg comprising thigh arm, shank arm and support arm, one end of the thigh arm and one end of the shank arm are mutually cut with scissors It connects, the other end of the shank arm is hinged on the skis, and one end of the support arm is hinged to the shank arm, thereon Resigning sliding slot is offered, link block is provided on the thigh arm, the first slide bar is provided on the link block, described first is sliding Bar is slidably disposed in the resigning sliding slot；

First fixed device, for thigh arm to be fixed to amputation；

Locking system comprising driving gear, drive rack, at least a pair of of locking pawl and the locking for locking pawl described in locking Block, the latch are fixed on the skis, and the end of the support arm is arranged in and with branch in the driving gear The rotation of brace and rotate, driving chamber is offered in the shank arm, the drive rack is slidably disposed on the driving Intracavitary, the driving gear is meshed with the drive rack；One end of the locking pawl is hinged in the drive rack, institute It states and offers locking sliding slot in locking pawl, the second slide bar is provided on the shank arm, second slide bar is mounted slidably In the locking sliding slot, the locking claw portion exposes to the shank arm and at least has the first working condition and the second work Make state；

When being in the first working condition, the thigh arm and the shank arm are in upright state, and the drive rack is to moving down Dynamic, the locking pawl merges with latch matching is locked by the latch；

When being in the second working condition, the thigh arm and the shank arm are in bending state, and the drive rack is to moving up Dynamic, the locking pawl is separated with the latch, and the shank arm can be rotated relative to skis.

2. a kind of single leg disabled person's winter sports auxiliary device as described in claim 1, which is characterized in that the latch tool There is a hook part, when the drive rack moves down, the locking pawl is resisted against on the hook part, and shank arm is opposite to ski for limiting Rotation before and after plate.

3. a kind of single leg disabled person's winter sports auxiliary device as described in claim 1, which is characterized in that further include lock control machine Structure and ski stick, lock control mechanism include the first wireless receiving module, the first power supply, first processor, the first electromagnet, locking bullet Spring and check lock lever, first power supply are used for first wireless receiving module, the first processor and first electricity Magnet power supply, first wireless receiving module, the equal signal of the first electromagnet are connected to the first processor, the cunning It is provided with the first wireless transmitter module for communicating with first wireless receiving module on snow bar, is opened up on the support arm There is the locking hole through the resigning sliding slot, the first accommodating groove is offered on the link block, the first electromagnet setting exists In first accommodating groove, described locking spring one end is connected to first electromagnet, the other end is connected to the check lock lever, The check lock lever is slidably disposed on the link block, and the check lock lever at least has the first working condition and the second work State；

When being in the first working condition, the first electromagnet power supply, the locking spring compresses and drives the check lock lever It is detached from the locking hole；

When being in the second working condition, the first electromagnet power-off, the locking spring resets and drives the check lock lever It is inserted into the locking hole, for limiting the sliding of first slide bar.

4. a kind of single leg disabled person's winter sports auxiliary device as claimed in claim 3, which is characterized in that further include linkage dress It sets comprising the second fixed device, the linkage seat being arranged on the described second fixed device, second source, the second wireless receiving Module, second processor, the second electromagnet and interlocking bar offer linkage chamber in the linkage seat, and the second source is used for It powers to second wireless receiving module, the second processor and second electromagnet, is provided on the ski stick The upper end of the second wireless transmitter module for communicating with second wireless receiving module, the linkage chamber offers linkage Tooth, the side that the interlocking bar corresponds to the first line of a couplet movable tooth are provided with second line of a couplet movable tooth, and one end of the interlocking bar is protruded into described Setting can be slided up and down on the thigh arm by moving the intracavitary, other end, and second electromagnet is located at the first line of a couplet movable tooth Top, when second electromagnet is powered, for adsorbing the interlocking bar so that the first line of a couplet movable tooth and the second line of a couplet movable tooth phase Engagement；When second electromagnet powers off, the first line of a couplet movable tooth is separated with the second line of a couplet movable tooth.

5. a kind of single leg disabled person's winter sports auxiliary device as claimed in claim 4, which is characterized in that on the thigh arm Sliding slot is offered, the interlocking bar is provided with sliding block far from the end of the linkage chamber, and the sliding block is slidably disposed on institute It states in sliding slot.