The utility model content
The purpose of this utility model is to need power-assisted person at lower limb disability person, leg power deficiency person and other daily walking stair activities, and simple and easy to do rehabilitation walker is provided.
For realizing purpose described in the utility model, the invention provides a kind of rehabilitation walker, be provided with connecting rod and vertical rod, one end of connecting rod is the thigh union end, the other end is the hand force side, and fulcrum and vertical rod between the two ends are hinged, and this vertical rod is provided with shank union end and/or foot coupling.
And connecting rod is 4 linkages.
And, thigh drive rod, shank drive rod and driver are set, driver comprises bottom deck assembly, skateboard component and supporting component, bottom deck assembly comprises the support plate at base, top cover, base two ends, skateboard component comprises guide rod and the slide plate in the base, supporting component comprises the stay pipe under the base, the roller that is connected the stay pipe two ends and telescoping tube, thigh drive rod one end and connecting rod is affixed, the other end and slip-tube shaft connect, shank drive rod one end and vertical rod hinge, the other end and skateboard-axis company.
And, motor is set, the feed screw nut group is set in the base, the feed screw nut group comprises the transmission nut on leading screw and the leading screw, and screw mandrel and two ends support plate are affixed, and transmission nut is connected with slide plate, and motor output inserts leading screw.
And, adopt adjustable speed control motor.
And, between vertical rod and foot coupling, be provided with the spreading bar of string screw, adopt movable bolt to connect between vertical rod and the spreading bar.
And, hinge foot lattice framing between connecting rod and the foot adapter.
This utility model utilizes lever principle, and effect is converted into the thigh application of force to the hand lever application of force, user can self-dependent strength walking along the street ascending stair and need not other people and help, simultaneously can all round exercise shank lower limb ability to act.This utility model has also designed drives structure, so that indoor exercise if add motor-driven, then can drive leg exercise with electric power, is particularly useful for hemiplegic patient's reconditioning.This utility model is simple in structure, and is cheap for manufacturing cost, both can be used for daily walking, auxiliary ascending stair, can be used in disabled and sick people's the shank rehabilitation training and the limb functional exercise of healthy population again.Characteristics such as therefore the utlity model has easy to carry, reasonable price, be widely used in can satisfying, lower floor's level of consumption, have very big promotional value.
The specific embodiment
Referring to Figure of description, this utility model provides a kind of rehabilitation walker, is provided with connecting rod 1 and vertical rod 2, one end of connecting rod 2 is a thigh union end 3, the other end is hand force side 4, and the fulcrum 5 between the two ends is hinged with vertical rod, and this vertical rod 2 is provided with shank union end 6 and/or foot coupling 7.The effect that the shank union end is set in vertical rod 2 in this utility model and foot coupling 7 is set in vertical rod 2 lower ends is equal to, and therefore can select a setting, also can be provided with simultaneously.During concrete enforcement, thigh union end 3 and shank union end 6 can adopt auxiliary entrusting.The principle that crutch are used for reference in hand force side 4 adopts a walking stick to get final product, can be provided with on walking stick pushes up handrail handle 8 or draw ring 8 '.This utility model utilizes lever principle, and user usefulness hands is the 4 downward application of forces in the hand force side, and thigh then can obtain active force upwards by thigh union end 3.When thigh moves, also move by shank union end 6 and/or foot coupling 7 fixed shanks thereupon.This utility model will be transformed into help lower limb thigh in the power that hand force side 4 presses down from bending to axial power, the gravity of health transferred on the shank by hand force side 4, thigh, thereby changed the situation of the gravity of whole health in the past by the single support of leg muscle.Instrument has not alleviated the pressure of upper body to thigh like this, also gives the external force of thigh to stretch simultaneously.
In order to strengthen supporting role to thigh, connecting rod 1 ' be 4 linkages.This utility model embodiment one has added on basic lever and hinged first auxiliary connecting rod 9 of connecting rod 1 and second auxiliary connecting rod 10 hinged with vertical rod 2, first auxiliary connecting rod 9, second auxiliary connecting rod 10 have constituted 4 linkages jointly with hand force side 4 and original connecting rod 1, promptly connecting rod 1 '.4 linkages are equally with 5 leverages of fulcrum, and when user with hands in the hand force side during the 4 downward application of forces, 9 pairs of thighs of first auxiliary connecting rod also have support force upwards, make human body that the movement tendency of way up be arranged, alleviate the support burden of 3 pairs of thighs of thigh union end, made user feel more comfortable.
In order to adapt to different shank length, this utility model embodiment two is provided with the spreading bar 13 of string screw between vertical rod 2 and foot coupling 7, adopts movable bolt to connect between vertical rod 2 and the spreading bar 13.Change relative distance (a level adjusting is arranged) between vertical rod 2 and the spreading bar 13 to adapt to the crowd of different heights by regulating bolt.Also be provided with respectively thigh lattice framing 11 and the shank lattice framing 12 parallel among the embodiment two with connecting rod 1 and vertical rod 2, thigh union end 3 and shank union end 6 adopt the semicircle hoop, the semicircle band is established in semicircle hoop top, and the semicircle band connects with connecting rod 1 or vertical rod 2 by snap close, in order to the fixing human lower limb.The semicircle hoop can make support section and human body lower limbs affixed well, and its material adopts rubber-like plastics, so the spacing scalable between thigh lattice framing 11 and shank lattice framing 12 and connecting rod 1 or the vertical rod 2.Also should dispose spreading bar 13 between shank lattice framing 12 and the foot adapter 7.
In order to realize exercise function, this utility model is provided with thigh drive rod 14, shank drive rod 15 and driver, driver comprises bottom deck assembly, skateboard component and supporting component, bottom deck assembly comprises base 19, top cover 20, the support plate 16 at base 19 two ends, skateboard component comprises guide rod 18 and the slide plate 17 in the base 19, supporting component comprises the support long tube 22 under the base 19, be connected the roller 21 and the telescoping tube 23 that support the long tube two ends, thigh drive rod 14 1 ends and connecting rod 1 are affixed, 23 companies of the other end and telescoping tube, shank drive rod 15 1 ends and vertical rod 2 are hinged, 17 companies of the other end and slide plate.Thigh drive rod 14 and shank drive rod 15 play a supportive role, and user can be shelved on driver on ground or the bed when taking exercise, and the exercise motion that is down on not needing especially.During concrete enforcement, support shank for convenience, shank drive rod 15 also can be directly and shank union end 6 in the vertical rod 2 or foot coupling 7 hinges.Concrete three preferred forms that adopted shank drive rod 15 and shank union end 6 upper semi-circle bands to be hinged of implementing of this utility model.User promotes or pulling hand force side 4 vertical draw rings 8 ', drive the motion of lower limb with hands, not only can take exercise arm but also can be to the strength deficiency, need the lower limb of slight training carry out rehabilitation medical.Shank drive rod 15 with can link to each other along the slide plate 17 that guide rod 18 moves, satisfied the space requirement that user moves lower limb.Telescoping tube 23 in the supporting component, by regulate can telescoping tube 23 length, to adapt to different thigh length.Roller 21 can help user to carry, the roller of the approximate luggage case of effect bottom.Base be provided with for 19 times support long tube 22 can be so that roller 21 and telescoping tube 23 be installed, and can play certain supporting role.
This utility model further technical scheme is that motor is set, the feed screw nut group is set in the base 19, and the feed screw nut group comprises the transmission nut on leading screw 24 and the leading screw 24, and screw mandrel 24 is affixed with two ends support plate 16, transmission nut is connected with slide plate 17, and motor output inserts leading screw 24.The mechanical connection of specific embodiment four is that motor output shaft links to each other with screw mandrel 24 by gear, gives screw mandrel 24 with transmission of power.Leading screw 24 should be parallel with guide rod 18, specific embodiment four is provided with 2 guide rods 18 and is distributed in leading screw 24 both sides, the two ends of screw mandrel 24 are connected on the two ends support plate 16 by a pair of angular contact ball bearing, respectively establish a bearing cap on the two ends support plate 16, by bolting to support plate 16, and bearing compressed, thus leading screw 24 is fixed in the base 19.On the screw mandrel 24 transmission nut is housed, the rotation of screw mandrel 24 can be become the translation back and forth of transmission nut, transmission nut is fixed by nut and slide plate group, and can drive slide plate 17 and move around along guide rod 18.Moving of slide plate 17 then drives moving of shank drive rod 15, gives upper part power by shank drive rod 15, makes people's lower limb partly make corresponding actions, in order to the limbs joint activity.Accompanying drawing 7 has saved top cover 20 in order to react the internal structure of driver.
In order to satisfy different need of exercise, adopt adjustable speed control motor that different exercise intensities is provided.Can calculate the power bracket of motor according to people's body weight and motion of mechanism and force analysis.Because product is mainly used in average family, and the motor power (output) that needs is also little, motor also should be able to be realized rotating, be convenient to speed governing simultaneously, can select monopole asynchronous motor, inquire about the content selectable of relevant motor on the mechanical handbook and select YY series single-phase capacitor operation asyn. motor, rated power is: 90W, rated speed is: 3000 (r/min).
For implementation result of the present utility model is described, this utility model provides the motor process sketch of embodiment four, and Fig. 8 A, Fig. 8 B and Fig. 8 C represent that respectively slide plate 17 slides into that (establishing stroke is 450), slide plate 17 slide into the limit on the left position in 17 motions of limit on the right-right-hand limit position, slide block.Shown in Fig. 8 A, corresponding to the forms of motion of embodiment four, the AB segment table shows the keyway on the base plate, and keyway has been determined the left and right sides extreme position that slide plate 17 slides.If AB=450, the junction of C point expression thigh drive rod 14 and telescoping tube 23, so AC length can change, and gets AC=166 during analysis, CD, FM labelling thigh drive rod 14 and shank drive rod 15 (CD=230, FM=300), M labelling slide plate 17, DE labelling thigh lattice framing 11, (D, F place are fixedly hinged EF labelling shank lattice framing 12, DE=100, EF=160).This embodiment does reconditioning when motion, and principal organ is a slider-crank mechanism, the E point shift in position of bringing owing to slide plate 17 and driving mechanism with the mobile representative of a blockage in the accompanying drawing 8.Because the thigh structure has been determined (bent angle is known), so CE, EM length can calculate CE=313, EM=434.Thereby Motor Drive slide plate 17 moves back and forth at stroke AB and makes connecting rod CE, EM motion drive large and small lower limb and do relevant flexion movement.When moving to stroke A, B two ends, slide plate 17 can calculate range of movement.Investigate accompanying drawing 8B, 8C again, can draw result of calculation (perhaps directly obtain a result with softwares such as AUTO CAD, computational process is slightly), the human motion scope was very big when visible this utility model used:
Knee joint: 20 °~170 ° (with the knee is the summit, and large and small lower limb is the limit)
Hip: 10 °~110 ° (intersection point with thigh root step and ground is the summit, and thigh, ground are the limit)
Only needing increases foot's lattice framing 25 between connecting rod 1 and foot adapter 7, this utility model not only can be tempered human body lower limbs thigh, Calf muscle, hip joint, knee joint, can also temper the ankle joint position of human body, and embodiment five as shown in Figure 9.When adopting 4 linkages, concrete connection can be connecting rod 1 ' second auxiliary connecting rod 10 and foot adapter 7 between hinge foot lattice framing 25, effect is equal to.