CN110882136B - Multifunctional walking aid device for old people - Google Patents

Abstract

The invention discloses a multifunctional walking aid for the elderly, which comprises two guide rail front rods, two support rear rods, a central scissor connecting rod, two linear sliding blocks and two auxiliary connecting rods, wherein the tops of the two support rear rods are respectively hinged to the height positions of the two guide rail front rods, the two linear sliding blocks are respectively arranged on the two guide rail front rods, the central scissor connecting rod is arranged between the two guide rail front rods, the tops of the two connecting rods of the central scissor connecting rod are respectively hinged to the two guide rail front rods, the bottoms of the two connecting rods of the central scissor connecting rod are respectively hinged to the two linear sliding blocks, each linear sliding block is hinged to one auxiliary connecting rod, the other end of each auxiliary connecting rod is hinged to the corresponding support rear rod, the tops of the two guide rail front rods are respectively provided with a handle device convenient to hold, and the relative distance between the two guide rail front rods is adjusted and locked through a foldable connecting rod mechanism. The invention has multiple functions and high portability, and is suitable for various occasions.

Description

Multifunctional walking aid device for old people

Technical Field

The invention belongs to the field of machinery, relates to walking equipment, in particular to a multifunctional walking device for the elderly, and relates to a multifunctional walking device for evaluating the disabled state of the organism of the elderly, performing risk early warning and assisting the elderly to complete basic actions.

Background

With the increasing attention of society to the elderly, intelligent aging-assisting products have become one of the most potential industries in the market. From the inside of the aged industry, the development of providing life assistance, travel and other industries for the aged is relatively backward, and the aging-assisting product is more important in the aspect of daily life foundation of the aged, such as living, action, toilet, positioning, communication and the like. Currently, the market walker is changing from the past simplification and simplification to the intelligent, fine and integrated development, and people pay more attention to the research and production of intelligent old-fashioned products, and more hope to develop a multifunctional integrated, light and practical walker.

For the multifunctional integrated walker, the integrated design of the crutch and the seat is common in the market, which preliminarily realizes one object with multiple purposes and has lighter weight. But the seat bench is considered the health of old person, but the mode of use can not fine solution corresponding problem, still can cause its on the health uncomfortable in the use, simultaneously because the increase of product volume can bring more new problems with it, like old handcart mainly supplies old person to use at home, and partial function is similar with the effect of walking stick, can both provide upper limbs supporting point, shares lower limb bearing force, has concurrently prevented falling the function, but it is inconvenient for old person's carry walking under the outdoor condition.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the multifunctional walking aid device for the old, solves the problems of single function and high field requirement of the existing walking aid, reduces the requirement on the application field, is not only suitable for indoor and outdoor use, but also convenient to carry and has various functions, and is suitable for the gradual disability condition of organisms caused by aging.

In order to solve the technical problems, the invention adopts the following technical scheme:

The utility model provides a multi-functional helping capable device towards old person which characterized in that: the two supporting rear rod tops are hinged to the two guide rail front rods respectively, the central scissor connecting rod is installed between the two guide rail front rods, the two connecting rod tops of the central scissor connecting rod are hinged to the two guide rail front rods respectively, the two connecting rod bottoms of the central scissor connecting rod are hinged to the two linear sliding blocks respectively, the two linear sliding blocks are installed at the lower parts of the two guide rail front rods respectively, each linear sliding block is hinged to an auxiliary connecting rod, the other end of each auxiliary connecting rod is hinged to the corresponding side supporting rear rod, a handle device convenient to hold is arranged at the tops of the two guide rail front rods respectively, and the relative distance between the two guide rail front rods is adjusted and locked through a foldable connecting rod mechanism.

As an improvement, collapsible link mechanism adjusts including preventing back right connecting rod, preventing back left connecting rod and preventing back hasp, prevent back right connecting rod and prevent back left connecting rod outside and articulate respectively on the guide rail front rod of corresponding side, prevent back right connecting rod and prevent back left connecting rod inner and hinge together to lock together through preventing back hasp, prevent to prevent back right connecting rod and prevent back left connecting rod and fold relatively, prevent back hasp one end and hinge on preventing back left connecting rod, the other end is equipped with first conflict face, prevent back to be equipped with on the right connecting rod with first conflict face relative second conflict face, prevent still being equipped with on the hasp and dodge the groove of dodging back right connecting rod and preventing back the inner articulated shaft of left connecting rod.

As an improvement, each guide rail front rod lower part is provided with a walking aid mechanism, each walking aid mechanism comprises a horseshoe upper rod, a horseshoe lower rod and a walking aid front end truckle, the upper end of the horseshoe upper rod is hinged to the linear sliding block, the lower end of the horseshoe upper rod is hinged to one end of the horseshoe lower rod, the middle part of the horseshoe lower rod is hinged to the lower part of the guide rail front rod, and the walking aid front end truckle is arranged at the other end of the horseshoe lower rod.

As an improvement, each of the bottom parts of the supporting rear rods is provided with a telescopic trundle mechanism, each telescopic trundle mechanism comprises a rear trundle, a trundle movable base, a trundle sleeve, a trundle hinge upper rod, a trundle hinge lower rod, a trundle pressure rod seat and a trundle pressure rod, the trundle sleeve is fixed at the bottom part of the supporting rear rod, the lower end of the trundle sleeve is in an opening shape, the lower end of the trundle sleeve is provided with at least one chute, the top part of the trundle movable base can be freely and vertically arranged in the opening at the lower end of the trundle sleeve, the side surface of the trundle movable base is provided with a guide block matched with the chute, the rear trundle is arranged at the lower end of the trundle movable base, the upper end of the trundle hinge upper rod is hinged with the trundle sleeve, the lower end of the upper rod of the trundle hinge is hinged with the upper end of the lower rod of the trundle hinge, the lower end of the lower rod of the trundle hinge is hinged with the upper end of the movable base of the trundle, a trundle hinge spring is arranged between the hinged position of the upper rod of the trundle hinge and the lower rod of the trundle hinge and the side wall of the trundle sleeve, the position of the trundle hinge spring enables the upper rod of the trundle hinge and the lower rod of the trundle hinge to have a trend of pulling the movable base of the trundle upwards, a window is formed in the trundle sleeve, a trundle compression rod seat is arranged at the window of the trundle sleeve, the trundle compression rod is arranged on the trundle compression rod seat through a rotating shaft, and one side of the trundle compression rod is provided with a wedge block used for extruding the hinged position of the upper rod of the trundle hinge and the lower rod of the trundle hinge.

The handle device comprises an F-shaped main rod, a soft handle and a unidirectional roller, wherein the soft handle and the unidirectional roller are respectively arranged on an upper short cross rod and a lower short cross rod of the F-shaped main rod, a vertical rod of the F-shaped main rod is arranged on a guide rail front rod through a handle height adjusting device, the handle height adjusting device comprises a handle height adjusting pressure rod, a handle height adjusting base and a handle height adjusting reset spring, the handle height adjusting base is arranged on the vertical rod of the F-shaped main rod through a connecting piece, a chute for the top of the guide rail front rod to freely pass through is arranged on the handle height adjusting base, a support is arranged on the side surface of the handle height adjusting base, the middle part of the handle height adjusting pressure rod is arranged on the support through a revolute pair, a handle height adjusting reset spring is arranged between one end of the handle height adjusting pressure rod and the handle height adjusting base, a raised pin is arranged at the other end of the handle height adjusting pressure rod, the handle height adjusting base is provided with an opening for the raised pin to extend into the inside, and a plurality of positioning grooves which can be inserted by the raised pins are arranged on the guide rail front rod, and the positioning grooves are inserted into different positioning pins through the positioning devices.

As an improvement, the soft handle is provided with anti-skid patterns, and a vertical rod close to the upper short cross rod is provided with a clamping ring for placing a flashlight.

As an improvement, the unidirectional roller comprises a roller and unidirectional bearings, wherein the two unidirectional bearings are respectively embedded at two ends of the roller, a lower short cross rod of the F-shaped main rod is fixed at the inner rings of the two unidirectional bearings, and a roller end cover for dust prevention is arranged at the outer end of the roller.

As an improvement, multi-functional walking aid still includes cushion device, cushion device includes two triangle bedplate, is first stock, second stock and third quarter butt in proper order, first stock lower extreme side is equipped with the connecting plate with articulated in the back pole side of supporting, and in the rotatory in-process of pin joint on the connecting plate of triangle bedplate, when first stock and back pole parallel of supporting are equipped with the first contact surface with the rear portion of back pole contact on the first stock, when the third quarter butt parallel with back pole support, be equipped with the third contact surface with the rear portion contact of back pole support on the first stock, be connected with soft cushion between the first stock of two triangle bedplate.

As an improvement, the bottom of the support rear rod is provided with a rear heel brace for skid resistance, and the bottom of the guide rail front rod is provided with a front heel brace for skid resistance.

As an improvement, the foldable link mechanism comprises a right return preventing link, a left return preventing link and a return preventing sleeve, wherein the outer sides of the right return preventing link and the left return preventing link are respectively hinged to a guide rail front rod on the corresponding side, the inner ends of the right return preventing link and the left return preventing link are hinged together, and the return preventing sleeve is sleeved at the inner end hinge of the right return preventing link and the left return preventing link and can completely move to the right return preventing link or the left return preventing link.

The invention has the beneficial effects that:

The invention provides a multifunctional walking aid device for the elderly, which comprises a walking stick structure and a trolley structure, wherein a mechanical main body of the walking stick structure consists of four main rods (namely two guide rail front rods and two support rear rods) and a plurality of connecting rods, and when the walking stick is folded into a walking stick, the four main rods form a straight line perpendicular to the ground. When the trolley is unfolded, the lower end of each main rod is contacted with the ground, and meanwhile, the left and right buckles of the hinge rod below the handle are used for fixing the spacing between two sides of the trolley.

The walking stick solves the carrying problem by folding, four rollers are arranged below the four main rods of the walking stick, the front two rollers are fixed wheels, the front wheels can be retracted simultaneously when the walking stick is folded, and the front fixed wheels are unfolded by virtue of multiple connecting rods when the walking stick is unfolded, so that the wheels are contacted with the ground. One side of the rear part, which is close to a person, is provided with a telescopic roller, the rear roller can be ejected out, and meanwhile, the bracket is opened smoothly by adopting a smooth linkage steel shaft design, so that the rear roller can be opened and retracted. The supporting framework is supported by the steel structure, and is stable and not easy to damage. The design mechanism is ingenious in that the crutch can be easily changed into a handcart by slightly stretching the handrail from the handrail to two sides, so that the convenient functions of assisting walking and the like are realized.

Meanwhile, the walking stick has the advantages that the problem of single function is solved, the lifting device is arranged below the handle, the clamping mechanism similar to an umbrella when the umbrella is unfolded is adopted, and the height of the walking stick is adjusted through the button on one side so as to adapt to the requirements of different old people. One end of the walking stick handle is provided with a detachable small flashlight, so that the old can walk after dinner or go to a toilet at night.

The height of the walking stick is about 1500mm, the walking stick is 30 multiplied by 90 rectangle after being folded, the height of the walking stick after being unfolded is about 1200mm, and the walking stick is a handcart with the width of 600 mm. In order to achieve the goal of unfolding a crutch with a one-dimensional structure into a handcart with a three-dimensional structure and using only one degree of freedom, a multi-link structure is adopted.

The handcart part of the invention adopts four-wheel handcart to reduce friction, so that walking is more labor-saving, and the service life of the product is prolonged. Meanwhile, the seat fixing rods are additionally arranged on two sides, and the transformation from the trolley to the seat is realized by pulling out the clamping groove on the other side of the seat belt buckle, so that the old can walk and feel tired for a short time.

The multifunctional walking aid device has multiple functions and is suitable for multiple occasions. The walking aid is high in portability and suitable for multiple occasions, so that the walking aid is suitable for the case of disability of the old caused by aging of the body.

Drawings

FIG. 1 is a schematic view of the multi-functional walking aid after being developed according to the present invention.

Fig. 2 is a schematic front view of the multifunctional walking aid after being unfolded.

FIG. 3 is a schematic view of the handle assembly of the present invention.

Fig. 4 is a schematic view of a unidirectional roller structure according to the present invention.

Fig. 5 is a schematic partial cross-sectional view of the retractable caster of the present invention.

FIG. 6 is a schematic view of the invention in a stowed position illustrating the relationship between the triangle seat pan and the support back bar.

FIG. 7 is a schematic view of a handle height adjustment device of the present invention.

Fig. 8 is a schematic view of a foldable linkage embodiment 1.

Fig. 9 is a schematic view of foldable linkage embodiment 2.

Fig. 10 is a schematic view of a caster strut.

FIG. 11 is a schematic view of the multi-functional walker of the present invention as it is stowed and suspended from a rail.

Fig. 12 is a schematic view of the seat cushion when the triangular seat plate is unfolded after the multifunctional walking aid is opened.

Reference numerals: i-multi-link mechanism, II-handle device, III-retractable caster mechanism, 101-guide front bar, 102-linear slider, 103-horseshoe upper bar, 104-horseshoe lower bar, 105-walk-assisting front end caster, 106-support rear bar, 107-triangle seat board, 108-rear heel brace, 109-connection guide, 110-seat board stopper, 111-back-preventing right link, 112-back-preventing buckle, 113-back-preventing left link, 114-center scissor link, 115-auxiliary link, 116-front heel brace, 117-first long bar, 118-second long bar, 119-third short bar, 120-connection board, 121-first contact surface, 122-third contact surface, 123-rotation bar, 124-first contact surface, 125-second contact surface, 126-anti-return sleeve, 201-F-shaped aluminum round tube, 202-rubber handle, 203-unidirectional roller, 204-connecting piece, 205-handle height adjustment return spring, 206-handle height adjustment pressure lever, 207-snap ring, 208-flashlight, 209-handle height adjustment base, 210-support, 211-protruding pin, 212-upper short cross bar, 213-lower short cross bar, 214-upright bar, 215-positioning groove, 301-roller, 302-roller end cover, 303-unidirectional bearing, 401-castor sleeve, 402-castor movable base, 403-rear castor, 404-castor pressure lever seat, 405-castor hinge upper bar, 406-castor pressure lever, 407-castor hinge spring, 408-castor hinge lower bar, 409-wedge block, 410-chute, 411-guide block.

Detailed Description

The crutch part of the system adopts a smooth linkage steel shaft design, and the bracket is opened smoothly, so that the crutch can be opened and retracted immediately. The supporting framework is supported by the steel structure, and is stable and not easy to damage. The design mechanism is ingenious in that the crutch can be easily changed into a handcart by slightly stretching the handrail from the handrail to two sides, so that the convenient functions of assisting walking and the like are realized. One end of the crutch handle is provided with a detachable small flashlight, so that the old can walk or go to a toilet at night after dinner. The lifting device is arranged below the handle, the clamping mechanism similar to an umbrella is adopted when the umbrella is supported, and the height of the crutch is adjusted through the button on one side so as to adapt to the requirements of different old people. Four rollers are arranged below the four rods of the crutch, the front two rollers are fixed wheels, the front wheels can be retracted simultaneously when the crutch is folded, and the front fixed wheels are unfolded by means of multiple connecting rods when the crutch is unfolded, so that the wheels are contacted with the ground. The telescopic roller is arranged on one side of the rear part close to a person, the rear roller can be ejected out, the function similar to a supermarket shopping cart is realized, the old can conveniently buy vegetables on the street, and the object bag is hung on the trolley to push and walk. The seat fixing rods are additionally arranged on the two sides of the crutch, and the conversion from the handcart to the seat is realized by pulling out the clamping groove on the other side of the buckle of the seat belt, so that the crutch is convenient for the old to sit for a short time when the old walks tired.

The following describes in detail the examples of the invention, which are implemented on the premise of the technical proposal of the invention, and the detailed implementation and specific operation process are given, but the protection scope of the invention is not limited to the following examples.

As shown in fig. 1, a multifunctional walking aid for the elderly comprises: a multi-link mechanism I, a handle device II and a telescopic caster mechanism III.

As shown in fig. 2 and 12, the multi-link mechanism I of the present invention includes: the front guide rail rod 101, the linear slide block 102, the upper horseshoe rod 103, the lower horseshoe rod 104, the front walking assisting end castor 105, the rear supporting rod 106, the triangular seat plate 107, the rear foot support 108, the connecting guide rail 109, the seat plate limiting block 110, the right return preventing connecting rod 111, the return preventing buckle 112, the left return preventing connecting rod 113, the center scissor connecting rod 114 and the auxiliary connecting rod 115.

The front guide rail rods 101 and the rear support rods 106 are rectangular aluminum sections, and the tops of the two rear support rods 106 are hinged to the height positions of the front guide rail rods 101 respectively, so that each rear support rod 106 and the corresponding front guide rail rod 101 can rotate relative to a hinge point. Two linear slides 102 are respectively arranged on the two guide rail front rods 101, and the linear slides 102 can realize linear sliding relative to the guide rail front rods 101. The auxiliary link 115 has one end hinge-coupled to the support rear bar 106 and the other end hinge-coupled to the linear slider 102 of the corresponding side, and the hinge axis is perpendicular to a plane formed by the guide front bar 101 and the support rear bar 106. On the hinge shaft going out, one end of the horseshoe upper rod 103 is hinged and matched with the linear sliding block 102, and one end of the horseshoe lower rod 104 is hinged and matched with the other end of the horseshoe upper rod 103. The free rotation of the walking-assisting front-end castor 105 is realized by the cooperation of the walking-assisting front-end castor 105 and the lower end of the horseshoe lower rod 104 through a pin shaft. The rear foot support 108 is fixedly connected to the lower end of the support rear rod 106 to play a role in skid resistance, and the front foot support 116 is fixed to the lower end of the guide rail front rod 101 to play a role in skid resistance. The connecting guide rail 109 is fixedly connected to the lower side of the supporting rear rod 106 through bolt matching, and can hang the whole multifunctional walking aid device on a bedside or a railing or a hanging rod together with the handle device II.

As shown in fig. 2 and 8, the foldable linkage mechanism embodiment 1 is: the anti-return right connecting rod 111 and the anti-return left connecting rod 113 are respectively hinged with the guide rail front rods 101 on two sides, the inner ends of the anti-return right connecting rod 111 and the anti-return left connecting rod 113 are matched through a pin shaft, one end of the anti-return buckle 112 is hinged with the anti-return left connecting rod 113, the other end of the anti-return buckle is provided with a first abutting surface 124, the anti-return right connecting rod 111 is provided with a second abutting surface 125 opposite to the first abutting surface 124, and the anti-return buckle 112 is also provided with an avoiding groove for avoiding the hinging shaft at the inner ends of the anti-return right connecting rod 111 and the anti-return left connecting rod 113. The two link tops of the center scissor link 114 are respectively hinged on the two guide rail front rods 101, the two link bottoms of the center scissor link 114 are respectively hinged on the two linear sliding blocks 102, and the middle parts of the two links of the center scissor link 114 are hinged and connected to form a scissor shape. Relative rotation of the two links of the center scissor link 114 is achieved.

As shown in fig. 2 and 12, two triangular seat plates 107 are respectively installed on the two supporting rear rods 106, three sides of the triangular seat plates 107 are sequentially provided with a first long rod 117, a second long rod 118 and a third short rod 119, the side surface of the lower end of the first long rod 117 is provided with a connecting plate 120 hinged on the side surface of the supporting rear rod 106, when the first long rod 117 is parallel to the supporting rear rod 106 in the rotation process of the triangular seat plates 107 around the hinging point on the connecting plate 120, the first long rod 117 is provided with a first contact surface 121 contacted with the rear part of the supporting rear rod 106, when the third short rod 119 is parallel to the supporting rear rod 106, the first long rod 117 is provided with a third contact surface 122 contacted with the rear part of the supporting rear rod 106, and a soft cushion forming cushion device is connected between the first long rods 117 of the two triangular seat plates 107. As a further embodiment, the support rear rods 106 at the sides of the two triangular seat plates 107 are respectively provided with a rotatable rotating rod 123, the tops of the rotating rods 123 are provided with seat plate limiting blocks 110, when the triangular seat plates 107 are folded, namely, the first long rods 117 are parallel to the support rear rods 106, the rotating rods 123 are twisted to enable the seat plate limiting blocks 110 to be perpendicular to the first long rods 117, namely, the triangular seat plates 107 are kept in a folded state, when a seat cushion is needed to be used, the rotating rods 123 are twisted to enable the seat plate limiting blocks 110 to be parallel to the first long rods 117, the triangular seat plates 107 can be opened, and the soft seat cushion can be unfolded to be used as a chair. The two handle devices II are respectively arranged at the tops of the two guide rail front rods 101.

As shown in fig. 3, the handle device II of the present invention includes: an F-shaped aluminum round tube 201, a rubber handle 202, a one-way roller 203, a clamping ring 207 and a flashlight 208.

Wherein the F-shaped aluminum round tube 201 is made of aluminum alloy, the rubber handle 202 is sleeved and fixedly connected on the upper short cross rod 212 of the F-shaped aluminum round tube 201, and the clamping ring 207 is fixedly connected on the root of the upper short cross rod 212. Flashlight 208 is fixed through snap ring 207, and when necessary, flashlight 208 can break away from snap ring 207, and specific snap ring 207 can be unilaterally open-ended elasticity ring, and flashlight 208 is convenient for fix and take out like this. The unidirectional roller 203 is installed on the lower short cross rod 213 of the F-shaped aluminum round tube 201, a hanging buckle can be formed between the upper short cross rod 212 and the lower short cross rod 213 and can be hung at the bedside, the F-shaped aluminum round tube 201 is installed on the guide rail front rod 101 through a handle height adjusting device, the handle height adjusting device comprises a handle height adjusting compression rod 206, a handle height adjusting base 209 and a handle height adjusting reset spring 205, the handle height adjusting base 209 is installed on a vertical rod 214 of the F-shaped main rod through a connecting piece 204 made of a non-standard round square tube, a sliding groove 410 for enabling the top of the guide rail front rod 101 to freely pass is formed in the handle height adjusting base 209, a support 210 is arranged on the side surface of the handle height adjusting base 209, the middle part of the handle height adjusting compression rod 206 is installed on the support 210 through a rotating pair, a handle height adjusting reset spring 205 is arranged between one end of the handle height adjusting compression rod 206 and the handle height adjusting base 209, a boss pin 211 is arranged at the other end, a boss pin 211 is arranged on the handle height adjusting base 209, a boss pin 215 is inserted into a plurality of boss pins 215 which can be inserted into a positioning groove 215 of the guide rail front rod 101 through a plurality of boss positioning grooves which can be inserted into a positioning device II.

The unidirectional cylinder 203 is shown in fig. 4, and includes: a roller 301, a roller end cap 302 and a one-way bearing 303. Wherein two unidirectional bearings 303 are respectively embedded at two ends of the roller 301, the roller end cover 302 is fixedly connected at the outer end part of the roller 301 to play a role in dust prevention, and the lower short cross rod 213 of the F-shaped aluminum round tube 201 is fixed with the inner rings of the two unidirectional bearings 303.

As shown in fig. 5 and 10, the caster mechanism III of the present invention includes: the caster comprises a caster sleeve 401, a caster movable base 402, a rear caster 403, a caster strut 406 seat 404, a caster hinge upper rod 405, a caster strut 406, a caster hinge spring 407, and a caster hinge lower rod 408. The end of the caster sleeve 401 is provided with a notch matched with the caster movable base 402 to realize the sliding motion of the caster movable base 402 relative to the caster sleeve 401, the caster sleeve 401 is fixed at the bottom of the supporting rear rod 106, the lower end of the caster sleeve 401 is in an opening shape, at least one chute 410 is arranged at the lower end of the caster sleeve 401, the top of the caster movable base 402 can be freely and vertically arranged in the opening of the lower end of the caster sleeve 401 in a sliding manner, the side surface of the caster movable base 402 is provided with a guide block 411 matched with the chute 410, the rear caster 403 is arranged at the lower end of the caster movable base 402 through a pin shaft, the upper end of the caster hinge upper rod 405 is hinged with the caster sleeve 401, the lower end of the caster hinge upper rod 405 is hinged with the upper end of the caster hinge lower rod 408, a hinge spring 407 is arranged between the hinge position of the caster hinge lower rod 405 and the side wall of the caster sleeve 401, the caster hinge upper rod 405 and the hinge lower rod 408 are provided with a guide block 411 which is laterally bent upwards to pull the movable base 402, the caster sleeve is provided with a window bracket 406, and the lower end of the caster sleeve 408 is provided with a hinge shaft bracket 406 is hinged with a hinge bracket 406, and the hinge bracket 406 is arranged at the hinge seat is arranged at the hinge position of the hinge bracket 406.

The caster strut 406 is externally snapped to the caster sleeve 401 (i.e., wedge 409 is outwardly directed) with the caster hinge spring 407 in an extended position, the caster hinge upper rod 405 and caster hinge lower rod 408 forming an obtuse angle, and the rear caster 403 is retracted.

The caster lever 406 is fastened to the caster sleeve 401 (i.e., the wedge 409 presses the hinge joint of the caster hinge upper rod 405 and the caster hinge lower rod 408 inward), the caster hinge spring 407 is in a compressed state, the caster hinge upper rod 405 and the caster hinge lower rod 408 form a compression flat angle, and the rear caster 403 extends.

It should be noted that, for the straight state locking of the anti-return right link 111 and the anti-return left link 113, the structure is not limited to the above-mentioned anti-return buckle 112, but may be other locking structures, for example, in embodiment 2, as shown in fig. 9, the inner ends of the anti-return right link 111 and the anti-return left link 113 are hinged together, the anti-return sleeve 126 is sleeved at the hinge position of the inner ends of the anti-return right link 111 and the anti-return left link 113, and can be completely moved to the anti-return right link 111 or the anti-return left link 113, when the anti-return right link 111 and the anti-return left link 113 are in the straight state, the anti-return sleeve 126 is located at the hinge position, the anti-return right link 111 and the anti-return left link 113 are locked to the straight state, and when the anti-return sleeve 126 is completely moved to the anti-return right link 111 or the anti-return left link 113, the anti-return right link 111 and the anti-return left link 113 can be relatively freely folded.

The specific implementation mode is as follows: the invention can provide walking aid, assisting to go upstairs and downstairs and temporary sitting and standing functions for the old.

As shown in fig. 11, the present invention is in a retracted state when the return-preventing right link 111 and the return-preventing left link 113 are folded inwards. The device is transversely arranged, the upper short cross rod 212 and the lower short cross rod 213 of the handle device II are buckled on the escalator, and further the friction force at the contact part of the handle device II and the escalator is increased due to leverage, so that the device provides temporary assistance for the old people. When the old people push up the device, the unidirectional roller 203 of the handle device II can roll in one direction, so that the action is easy to complete;

as shown in fig. 12, when the back-preventing right link 111 and the back-preventing left link 113 form a flat angle, the back-preventing buckle 112 is in a buckled state, i.e., the back-preventing right link 111 and the back-preventing left link 113 are locked in a flat state. The triangular seat plates 107 are put down by twisting the seat plate limiting blocks 110, and cloth tapes arranged on the triangular seat plates 107 on two sides are pulled out. The device can provide temporary sitting for the old people.

As shown in fig. 1, when the back-preventing right link 111 and the back-preventing left link 113 form a flat angle, the back-preventing buckle 112 is in a buckled state. Keeping the triangle seat 107 in the stowed state provides the elderly with a walking aid.

Claims (6)

1. The utility model provides a multi-functional helping capable device towards old person which characterized in that: the device comprises two guide rail front rods, two supporting rear rods, a central scissor connecting rod, two linear sliding blocks and two auxiliary connecting rods, wherein the tops of the two supporting rear rods are respectively hinged to the positions where the two guide rail front rods are high, the central scissor connecting rod is arranged between the two guide rail front rods, the tops of the two connecting rods of the central scissor connecting rod are respectively hinged to the two guide rail front rods, the bottoms of the two connecting rods of the central scissor connecting rod are respectively hinged to the two linear sliding blocks, the two linear sliding blocks are respectively and freely slidably arranged at the lower parts of the two guide rail front rods, each linear sliding block is hinged to one auxiliary connecting rod, the other ends of the auxiliary connecting rods are hinged to the corresponding side supporting rear rods, the tops of the two guide rail front rods are respectively provided with a handle device which is convenient to hold, and the relative distance between the two guide rail front rods is adjusted and locked through a foldable connecting rod mechanism;

The foldable link mechanism comprises a right return preventing link, a left return preventing link and a return preventing buckle, wherein the outer sides of the right return preventing link and the left return preventing link are respectively hinged to guide rail front rods on corresponding sides, the inner ends of the right return preventing link and the left return preventing link are hinged together and locked together through return preventing buckles, the right return preventing link and the left return preventing link are prevented from being folded relatively, one end of the return preventing buckle is hinged to the left return preventing link, a first abutting surface is arranged at the other end of the return preventing buckle, a second abutting surface opposite to the first abutting surface is arranged on the right return preventing link, and a return preventing groove for avoiding a hinge shaft at the inner ends of the right return preventing link and the left return preventing link is also formed in the return preventing buckle;

The lower part of each guide rail front rod is provided with a walking aid mechanism, the walking aid mechanism comprises a horseshoe upper rod, a horseshoe lower rod and a walking aid front-end trundle, the upper end of the horseshoe upper rod is hinged to the linear slide block, the lower end of the horseshoe upper rod is hinged to one end of the horseshoe lower rod, the middle part of the horseshoe lower rod is hinged to the lower part of the guide rail front rod, and the other end of the horseshoe lower rod is provided with the walking aid front-end trundle;

Each of the supporting rear rod bottoms is provided with a telescopic trundle mechanism, each telescopic trundle mechanism comprises a rear trundle, a trundle movable base, a trundle sleeve, a trundle hinge upper rod, a trundle hinge lower rod, a trundle pressure rod seat and a trundle pressure rod, the trundle sleeve is fixed at the supporting rear rod bottom, the lower end of the trundle sleeve is in an opening shape, at least one sliding chute is formed in the lower end of the trundle sleeve, the top of the trundle movable base can be freely and vertically arranged in the opening of the lower end of the trundle sleeve in a sliding manner, a guide block matched with the sliding chute is arranged on the side surface of the trundle movable base, the rear trundle is arranged at the lower end of the trundle movable base, the upper end of the trundle hinge upper rod is hinged with the trundle sleeve, the lower end of the trundle hinge upper rod is hinged with the upper end of the trundle hinge lower rod, a hinge spring is arranged between the hinge upper rod of the trundle hinge lower rod and the side wall of the trundle hinge lower rod, the trundle hinge upper rod is arranged on the window, the trundle hinge lower rod seat is arranged on the trundle seat, and the trundle is arranged on the trundle seat through the hinge shaft;

The handle device comprises an F-shaped main rod, a soft handle and a unidirectional roller, wherein the soft handle and the unidirectional roller are respectively arranged on an upper short cross rod and a lower short cross rod of the F-shaped main rod, the upright rod of the F-shaped main rod is arranged on a front guide rail rod through a handle height adjusting device, the handle height adjusting device comprises a handle height adjusting compression rod, a handle height adjusting base and a handle height adjusting reset spring, the handle height adjusting base is arranged on the upright rod of the F-shaped main rod through a connecting piece, a chute for the top of the front guide rail rod to freely pass through is arranged on the handle height adjusting base, a support is arranged on the side surface of the handle height adjusting base, the middle part of the handle height adjusting compression rod is arranged on the support through a revolute pair, a handle height adjusting reset spring is arranged between one end of the handle height adjusting compression rod and the handle height adjusting base, a raised pin is arranged at the other end of the handle height adjusting base, the handle height adjusting base is provided with an opening for the raised pin to extend into the inside, and a plurality of positioning slots capable of being inserted by the raised pins are arranged on the front guide rail rod, and the positioning slots are inserted into different positioning slots through the selected raised pins.

2. The multi-functional walker apparatus as claimed in claim 1 wherein: the soft handle is provided with anti-skid patterns, and a clamping ring for placing a flashlight is arranged on the upright rod close to the upper short cross rod.

3. The multi-functional walker apparatus as claimed in claim 1 wherein: the unidirectional roller comprises a roller and unidirectional bearings, wherein the two unidirectional bearings are respectively embedded at two ends of the roller, a lower short cross rod of the F-shaped main rod is fixed on inner rings of the two unidirectional bearings, and a roller end cover for dust prevention is arranged at the outer end of the roller.

4. A multi-functional walker apparatus as claimed in any one of claims 1 to 3 wherein: the multifunctional walking aid comprises a seat cushion device, wherein the seat cushion device comprises two triangular seat plates, a first long rod, a second long rod and a third short rod, a connecting plate hinged to the side face of the supporting rear rod is arranged on the side face of the lower end of the first long rod, a soft seat cushion is connected between the first long rods of the two triangular seat plates in the rotation process of the hinge point on the connecting plate, when the first long rod is parallel to the supporting rear rod, a first contact surface in contact with the rear portion of the supporting rear rod is arranged on the first long rod, and when the third short rod is parallel to the supporting rear rod, a third contact surface in contact with the rear portion of the supporting rear rod is arranged on the first long rod.

5. A multi-functional walker apparatus as claimed in any one of claims 1 to 3 wherein: the bottom of the support rear rod is provided with a rear heel brace used for skid resistance, and the bottom of the guide rail front rod is provided with a front heel brace used for skid resistance.

6. A multi-functional walker apparatus as claimed in any one of claims 1 to 3 wherein: the foldable connecting rod mechanism comprises a right-return preventing connecting rod, a left-return preventing connecting rod and a return preventing sleeve, wherein the outer sides of the right-return preventing connecting rod and the left-return preventing connecting rod are respectively hinged to a guide rail front rod on the corresponding side, the inner ends of the right-return preventing connecting rod and the left-return preventing connecting rod are hinged together, and the return preventing sleeve is sleeved at the hinge of the inner ends of the right-return preventing connecting rod and the left-return preventing connecting rod and can completely move to the right-return preventing connecting rod or the left-return preventing connecting rod.