CN110882136A - Multifunctional walking aid device for old people - Google Patents

Abstract

The invention discloses a multifunctional walking aid device for the elderly, which 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 at the same height of the two guide rail front rods, the two linear sliding blocks are respectively arranged on the two guide rail front rods, the center scissors fork connecting rod is installed between the two guide rail front rods, the tops of the two connecting rods of the center scissors fork connecting rod are respectively hinged to the two guide rail front rods, the bottoms of the two connecting rods of the center scissors fork 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 supporting rear rod, the top of each guide rail front rod is provided with a handle device convenient to hold by hand, and the relative distance between the two guide rail front rods is adjusted and locked through a foldable connecting rod mechanism. The multifunctional portable multifunctional desk has multiple functions and high portability, and is suitable for multiple occasions.

Description

A multifunctional walking aid for the elderly

technical field

The invention belongs to the field of machinery, and relates to a walking aid device, in particular to a multifunctional walking aid device for the elderly. Functional mobility aids.

Background technique

Smart city and smart society are the main themes of current social development. With the deepening of the aging degree in our country, the demand of the elderly for products to help the elderly has increased sharply. The health care problem caused by the aging population has also become a social problem that our country must face and solve. One of the industries with development potential. From the perspective of the aging industry, the development of industries such as providing living assistance and travel for the elderly is relatively backward, and the products for the elderly are more important in terms of daily life, such as daily living, movement, toileting, positioning, and communication. At present, the walkers on the market are developing from simplification and simplification in the past to intelligence, refinement, and integration. People are paying more and more attention to the research and production of intelligent aging aid products, and they expect more and more research and development. An all-in-one, lightweight and practical walker.

For multi-functional walkers, the integrated design of crutches and seats is already common in the market, which initially realizes multiple functions and is lighter in weight. However, although the seat bench takes into account the physical condition of the elderly, the use method cannot solve the corresponding problem very well, and it will still cause physical discomfort during use. It brings more new problems. For example, the elderly trolley is mainly used by the elderly at home. Some functions are similar to those of crutches. They can provide support points for upper limbs, share the bearing capacity of lower limbs, and have anti-fall function, but they are not convenient for outdoor use. In the case of the elderly carrying walking.

Since developed countries entered an aging society earlier, the design and development of aging problems and products for the elderly are relatively mature. Compared with the speed of population aging, the design and development of products for the elderly in my country is relatively lagging behind. The complexity of the organization Compared with foreign countries, there is a certain gap in flexibility. Comparing with most of the existing researches at home and abroad, it is found that there are some problems in the products of helping the elderly in my country: the products are in short supply, the form is relatively simple; the functions are not comprehensive enough; and the actual needs of the elderly cannot be taken into account.

SUMMARY OF THE INVENTION

The purpose of the present invention is to aim at the above-mentioned deficiencies of the prior art, to provide a multifunctional walking aid for the elderly, to solve the problems of single function and high site requirements of the existing walking aids, and to reduce the requirements for the application site, The multifunctional walking aid is not only suitable for indoor and outdoor, but also easy to carry and has various functions. It is suitable for the gradual disability of the body caused by aging.

In order to solve the above-mentioned technical problems, the technical scheme adopted in the present invention is:

A multifunctional walking aid device for the elderly, which is characterized in that it includes two guide rail front rods, two support rear rods, a central scissor link, two linear sliders and two auxiliary links, and two support rods. The top of the rear rod is hinged at the same height of the front rods of the two guide rails, the central scissor link is installed between the front rods of the two guide rails, and the tops of the two rods of the central scissor link are hinged in front of the two guide rails respectively. On the rod, the bottoms of the two connecting rods of the central scissor link are respectively hinged on two linear sliders, and the two linear sliders are respectively installed on the lower parts of the front rods of the two guide rails, and each of the linear sliders is hinged with an auxiliary connecting rod, the other end of the auxiliary connecting rod is hinged on the supporting rear rod on the corresponding side, the top of the two guide rail front rods is respectively provided with a handle device that is easy to hold, and the two guide rail front rods are adjusted by a foldable link mechanism and lock the relative distance.

As an improvement, the adjustment of the foldable link mechanism includes an anti-return right link, an anti-return left link, and an anti-return buckle, and the outer sides of the anti-return right link and the anti-return left link are hinged on the guide rails on the corresponding sides respectively. On the front rod, the inner ends of the anti-return right link and the anti-return left link are hinged together and locked together by an anti-return buckle to prevent the anti-return right link and the anti-return left link from being folded relative to each other. One end of the buckle is hinged on the anti-return left link, the other end is provided with a first contact surface, the anti-back right link is provided with a second contact surface opposite to the first contact surface, and the anti-return buckle is provided with a second contact surface opposite to the first contact surface. There are also avoidance grooves for avoiding the hinge shafts at the inner ends of the anti-return right link and the anti-return left link.

As an improvement, a walking aid mechanism is provided at the lower part of each of the front rods of the guide rails, and the walking aid mechanism includes a horseshoe upper rod, a horseshoe lower rod and a front-end caster for walking, and the upper end of the horseshoe upper rod is hinged on the linear slider. The lower end is hinged with one end of the lower rod of the horseshoe, the middle part of the lower rod of the horseshoe is hinged to the lower part of the front rod of the guide rail, and the other end of the lower rod of the horseshoe is equipped with a front-end caster to assist in walking.

As an improvement, a telescopic caster mechanism is provided at the bottom of each of the supporting rear rods, and the telescopic caster mechanism includes a rear caster, a caster movable base, a caster sleeve, a caster hinge upper rod, a caster hinge lower rod, and a caster presser. The rod seat and the caster pressing rod, the caster sleeve is fixed on the bottom of the rear rod, the lower end of the caster sleeve is open, and the lower end of the caster sleeve is provided with at least one chute, and the top of the movable base of the caster can freely slide up and down is installed in the opening of the lower end of the caster sleeve, the side of the movable base of the caster is provided with a guide block that cooperates with the chute, the rear caster is installed at the lower end of the movable base of the caster, and the upper end of the upper rod of the caster hinge is connected with the caster sleeve. The lower end of the upper rod of the caster hinge is hingedly connected with the upper end of the lower rod of the caster hinge, and the lower end of the lower rod of the caster hinge is hingedly connected with the upper end of the movable base of the caster. There is a caster hinge spring between, and the position of the caster hinge spring makes the upper rod of the caster hinge and the lower rod of the caster hinge have the tendency of side bending and pulling the movable base of the caster upward. The rod seat is installed at the window of the caster sleeve, the caster pressing rod is installed on the caster pressing rod seat through the rotating shaft, and one side of the caster pressing rod is provided with a hinge point for squeezing the upper rod of the caster hinge and the lower rod of the caster hinge wedge block.

As an improvement, the handle device includes an F-type main rod, a soft handle and a one-way roller, the soft handle and the one-way roller are respectively installed on the upper short crossbar and the lower short crossbar of the F-type main rod, so The vertical rod of the F-type main rod is installed on the front rod of the guide rail through a handle height adjustment device. The handle height adjustment device includes a handle height adjustment pressure rod, a handle height adjustment base and a handle height adjustment return spring. The handle height adjustment The base is installed on the vertical pole of the F-type main pole through the connecting piece. The middle part of the handle height adjustment pressure rod is installed on the support through a rotating pair, a handle height adjustment return spring is arranged between one end of the handle height adjustment pressure rod and the handle height adjustment base, and the other end is provided with a raised pin. The adjustment base is provided with an opening for the protruding pins to extend into the interior, and the front rod for the guide rail is provided with a plurality of positioning grooves that can be inserted by the protruding pins. Height of handle unit.

As an improvement, the soft handle is provided with an anti-skid pattern, and a snap ring for placing the flashlight is provided on the vertical pole close to the upper short horizontal bar.

As an improvement, the one-way drum includes a drum and a one-way bearing, wherein the two one-way bearings are embedded at both ends of the drum respectively, and the lower short cross bar of the F-type main rod is fixed to the inner ring of the two one-way bearings , the outer end of the drum is provided with a drum end cover for dust prevention.

As an improvement, the multifunctional walking aid device further includes a seat cushion device, and the seat cushion device includes two triangular seat plates, which are a first long rod, a second long rod and a third short rod in sequence. The lower end of the first long rod is The side is provided with a connecting plate hinged on the side of the supporting rear rod. During the rotation of the triangular seat plate around the hinge point on the connecting plate, when the first long rod is parallel to the supporting rear rod, the first long rod is provided with the supporting rear rod. When the third short rod is parallel to the supporting rear rod, the first long rod is provided with a third contact surface that contacts the rear of the supporting rear rod, and the third contact surface of the two triangular seat plates is A soft cushion is connected between a long rod.

As an improvement, the bottom of the support rear rod is provided with a rear foot support for anti-skid, and the bottom of the front rod of the guide rail is provided with a front foot support for anti-skid.

As an improvement, the adjustment of the foldable link mechanism includes an anti-return right link, an anti-return left link and an anti-return sleeve, and the outer sides of the anti-return right link and the anti-return left link are respectively hinged to the guide rails on the corresponding sides. On the front rod, the inner ends of the anti-return right link and the anti-return left link are hinged together. Anti-return right link or anti-return left link.

The beneficial effects of the present invention are:

The present invention provides a multifunctional walking aid device for the elderly, including a walking stick structure and a trolley structure. Composed of connecting rods, when folded into crutches, the four main rods form a straight line perpendicular to the ground. When unfolded into a trolley, the lower end of each main pole is in contact with the ground, and at the same time, the hinge rods under the handle are buckled left and right to fix the distance between the two sides of the trolley.

The cane of the present invention solves the problem of carrying by folding. Four rollers are installed under the four main rods of the cane. The two front rollers are fixed wheels. When the cane is folded, the front wheels can be retracted at the same time. The multi-link deployment allows the wheels to touch the ground. The rear side close to the person is a retractable roller, which can be ejected. At the same time, the smooth linkage steel shaft design is adopted to smoothly open the bracket, so that it can be opened and closed immediately. The support frame is supported by steel structure, which is stable and not easy to be damaged. The ingeniousness of this design mechanism lies in the fact that the crutches can be easily turned into a trolley by gently stretching from the armrest to both sides, realizing convenient functions such as assisting walking.

At the same time, the cane has multiple functions, which solves the problem of single function. The cane of the present invention is equipped with a lifting device under the handle, and adopts a clamping mechanism similar to that of an umbrella when holding an umbrella. A detachable small flashlight is installed at one end of the handle of the cane, which is convenient for the elderly to walk after dinner or to go to the toilet at night.

The walking stick of the present invention has a height of about 1500mm, a rectangle of 30×90 after being folded, a height of about 1200mm after unfolding, and a trolley with a width of 600mm. In order to realize the goal of unfolding a crutch with a one-dimensional structure into a trolley with a three-dimensional structure and only using one degree of freedom, a multi-link structure is adopted.

The trolley part of the present invention adopts a four-wheeled trolley to reduce friction, so that walking is more labor-saving and product life is increased. At the same time, seat fixing rods are installed on both sides. By pulling out the other side of the seat belt buckle, the change from the trolley to the seat is realized, which is convenient for the elderly to take a short rest when they are tired from walking.

The multifunctional walking aid device according to the present invention has multiple functions and is suitable for multiple occasions at the same time. Because of its high portability and suitability for many occasions, this kind of walking aid is suitable for the disabled caused by the aging of the elderly.

Description of drawings

FIG. 1 is a schematic diagram of the multifunctional walking aid device after deployment of the present invention.

FIG. 2 is a schematic diagram of the front side of the multifunctional walking aid device after deployment of the present invention.

FIG. 3 is a schematic structural diagram of the handle device of the present invention.

FIG. 4 is a schematic diagram of the structure of the one-way drum according to the present invention.

FIG. 5 is a partial cross-sectional schematic view of the telescopic caster of the present invention.

6 is a schematic diagram of the installation relationship between the triangular seat plate and the support rear rod in a retracted state of the present invention.

FIG. 7 is a schematic diagram of the handle height adjusting device of the present invention.

FIG. 8 is a schematic diagram of Embodiment 1 of the foldable link mechanism.

FIG. 9 is a schematic diagram of Embodiment 2 of the foldable link mechanism.

Figure 10 is a schematic diagram of the caster lever.

Figure 11 is a schematic diagram of the multifunctional walking aid device of the present invention hanging on a crossbar after being folded.

Figure 12 is a schematic diagram of the triangular seat plate unfolded as a seat cushion after the multifunctional walking aid is opened.

Reference signs: I-multi-link mechanism, II-handle device, III-telescopic caster mechanism, 101-guide rail front rod, 102-linear slider, 103-horseshoe upper rod, 104-horseshoe lower rod, 105-walking aid Front casters, 106-supporting the rear rod, 107-triangular seat plate, 108-rear foot support, 109-connecting guide rail, 110-seat plate limit block, 111-anti-return right link, 112-anti-return buckle, 113- Anti-back left link, 114-center scissor link, 115-auxiliary link, 116-front chainstay, 117-first long link, 118-second long link, 119-third short link, 120-connecting plate , 121-First contact surface, 122-Third contact surface, 123-Rotating rod, 124-First contact surface, 125-Second contact surface, 126-Anti-return sleeve, 201-F-type aluminum tube, 202 -rubber handle, 203-one-way roller, 204-connector, 205-grip height adjustment return spring, 206-grip height adjustment lever, 207-retaining ring, 208-flashlight, 209-grip height adjustment base, 210- Support, 211-protruding pin, 212-upper short crossbar, 213-lower short crossbar, 214-upright rod, 215-positioning groove, 301-roller, 302-roller end cover, 303-one-way bearing, 401 - Caster Sleeve, 402- Caster Active Base, 403- Rear Caster, 404- Caster Press Rod Seat, 405- Caster Hinge Upper Rod, 406- Caster Press Rod, 407- Caster Hinge Spring, 408- Caster Hinge Lower Rod , 409 - wedge block, 410 - chute, 411 - guide block.

Detailed ways

The crutch part included in this system adopts the design of smooth linkage steel shaft, which can smoothly open the bracket, so that it can be opened and closed immediately. The support frame is supported by steel structure, which is stable and not easy to be damaged. The ingeniousness of this design mechanism lies in the fact that the crutches can be easily turned into a trolley by gently stretching from the armrest to both sides, realizing convenient functions such as assisting walking. A small detachable flashlight is installed at one end of the crutch handle, which is convenient for the elderly to walk after dinner or to go to the toilet at night. The crutch is equipped with a liftable device under the handle, and adopts a clamping mechanism similar to that of an umbrella when holding an umbrella. The height of the crutch can be adjusted through a button on one side to meet the needs of different elderly people. Four rollers are installed under the four rods of the crutches. The front two rollers are fixed wheels. When the crutches are retracted, the front wheels can be retracted at the same time. When the crutches are unfolded, the front fixed wheels are unfolded by multi-links, so that the wheels contact the ground. The rear side close to the person is a retractable roller, which can be ejected to achieve the same function as a supermarket shopping cart. It is convenient for the elderly to go shopping on the street and hang the bag on the trolley to drive. Both sides of the crutch are equipped with seat fixing rods, and by pulling out the other side of the seat cloth buckle, the change from the trolley to the seat is realized, which is convenient for the elderly to take a short rest when they are tired from walking.

The embodiments of the present invention are described in detail below. The present embodiment is implemented on the premise of the technical solution of the present invention, and provides a detailed implementation manner and a specific operation process, but the protection scope of the present invention is not limited to the following Example.

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

As shown in Figures 2 and 12, the multi-link mechanism I of the present invention includes: a guide rail front rod 101, a linear slider 102, a horseshoe upper rod 103, a horseshoe lower rod 104, a front-end caster 105, a rear support rod 106, a triangle Seat plate 107 , rear foot support 108 , connecting guide rail 109 , seat plate limit block 110 , anti-return right link 111 , anti-return buckle 112 , anti-return left link 113 , central scissor link 114 and auxiliary link 115 .

The guide rail front rod 101 and the support rear rod 106 are made of aluminum rectangular tubes, and the tops of the two support rear rods 106 are hinged at the same height of the two guide rail front rods 101, so that each support rear rod 106 and the corresponding guide rail front rod 101 Can do rotational movement relative to the hinge point. The two linear sliders 102 are respectively arranged on the two guide rail front rods 101 , and the linear slider 102 can realize linear sliding relative to the guide rail front rod 101 . One end of the auxiliary link 115 is hingedly connected with the support rear rod 106 , and the other end is hingedly connected with the corresponding linear slider 102 . On the outgoing hinge shaft, one end of the upper rod 103 is hinged with the linear slider 102 , and one end of the lower rod 104 is hinged with the other end of the upper rod 103 . The front end of the walker 105 and the lower end of the horseshoe lower rod 104 are matched with the pin shaft to realize the free rotation of the walker 105 . The rear foot support 108 is fixed to the lower end of the supporting rear rod 106 to play an anti-slip effect, and the front foot support 116 is fixed to the lower end of the guide rail front rod 101 to play an anti-slip effect. The connecting guide rail 109 is fixed to the underside of the rear support bar 106 through bolts, and can be used with the handle device II to suspend the entire multifunctional walking device on the bedside or on the railing or hanging bar.

As shown in Figures 2 and 8, the first embodiment of the foldable link mechanism is: the anti-return right link 111 and the anti-return left link 113 are respectively hinged with the guide rail front rods 101 on both sides, and the anti-return right link 111 and the anti-return left link The inner end of the left-return link 113 is matched with a pin, one end of the anti-return hasp 112 is hingedly matched with the anti-return left link 113, and the other end is provided with a first contact surface 124, and the right anti-return link 111 is provided with a On the second contact surface 125 opposite the first contact surface 124 , the anti-return buckle 112 is further provided with an escape groove for avoiding the hinge shafts at the inner ends of the anti-return right link 111 and the anti-return left link 113 . The tops of the two links of the central scissor link 114 are hinged on the two guide rail front rods 101 respectively, and the bottoms of the two links of the central scissor link 114 are hinged on the two linear sliders 102 respectively. The middle parts of the two connecting rods of the rod 114 are hingedly connected to form a scissors shape. The relative rotation of the two links of the central scissor link 114 is achieved.

As shown in FIGS. 2 and 12 , there are two triangular seat plates 107 , which are respectively installed on the two supporting rear bars 106 . The three sides of the triangular seat plate 107 are the first long bar 117 and the second long bar 118 in sequence. and the third short rod 119, the lower end side of the first long rod 117 is provided with a connecting plate 120 that is hinged to the side of the supporting rear rod 106. During the rotation of the triangular seat plate 107 around the hinge point on the connecting plate 120, when the first long rod 117 rotates When the rod 117 is parallel to the rear support rod 106, the first long rod 117 is provided with a first contact surface 121 that contacts the rear of the rear support rod 106. When the third short rod 119 is parallel to the rear support rod 106, the first contact surface 121 The long rod 117 is provided with a third contact surface 122 that contacts the rear of the support rear rod 106 , and a soft cushion is connected between the first long rods 117 of the two triangular seat plates 107 to form a cushion device. As a further embodiment, the support rear rods 106 on the sides of the two triangular seat plates 107 are provided with rotatable rotating rods 123, and the top of the rotating rods 123 is provided with a seat plate limit block 110. The seat plate 107 is folded up, that is, when the first long rod 117 is parallel to the support rear rod 106, the rotating rod 123 is twisted to make the seat plate limit block 110 and the first long rod 117 perpendicular, that is, the triangular seat plate 107 remains retracted. In the folded state, when the seat cushion needs to be used, twist the rotating rod 123 to make the seat plate stop block 110 parallel to the first long rod 117, then the triangular seat plate 107 can be opened, and the soft seat cushion can be unfolded, which can be used as a chair. There are two handle devices II, which are respectively installed on 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 snap ring 207 and a flashlight 208 .

The F-type aluminum round tube 201 is made of aluminum alloy, the rubber handle 202 is sleeved and fixed on the upper short crossbar 212 of the F-type aluminum round pipe 201 , and the snap ring 207 is fixed on the root of the upper short crossbar 212 . The flashlight 208 is fixed by the snap ring 207. When necessary, the flashlight 208 can be separated from the snap ring 207. The specific snap ring 207 can be an elastic ring with one side opening, so that the flashlight 208 is easy to fix and take out. The one-way roller 203 is installed on the lower short crossbar 213 of the F-type aluminum round tube 201, and a hanging buckle can also be formed between the upper short crossbar 212 and the lower short crossbar 213, which can be hung by the bedside, so The F-shaped aluminum round tube 201 is installed on the guide rail front rod 101 through a handle height adjustment device. The handle height adjustment device includes a handle height adjustment pressure rod 206, a handle height adjustment base 209 and a handle height adjustment return spring 205. The handle height adjustment base 209 is installed on the upright rod 214 of the F-type main rod through a connecting piece 204 made of a non-standard round square tube. The handle height adjustment base 209 is provided with a chute for the top of the guide rail front rod 101 to freely pass through. 410, a support 210 is provided on the side of the handle height adjustment base 209, the middle of the handle height adjustment pressure rod 206 is mounted on the support 210 through a rotating pair, and one end of the handle height adjustment pressure rod 206 is connected to the handle height adjustment base 209. There is a handle height adjustment return spring 205 between them, and a raised pin 211 is arranged at the other end. The handle height adjustment base 209 is provided with an opening for the raised pin 211 to extend into the interior. There are a plurality of positioning grooves 215 into which the protruding pins 211 can be inserted, and the height of the handle device II can be adjusted by selecting the protruding pins 211 to be inserted into different positioning grooves 215 .

As shown in FIG. 4 , the one-way drum 203 includes: a drum 301 , a drum end cover 302 and a one-way bearing 303 . Two one-way bearings 303 are embedded in the two ends of the drum 301 respectively, the drum end cover 302 is fixed on the outer end of the drum 301 to play a dustproof function, and the lower short cross bar 213 of the F-shaped aluminum round tube 201 is fixed with The inner rings of the two one-way bearings 303.

As shown in Figures 5 and 10, the telescopic caster mechanism III of the present invention includes: a caster sleeve 401, a caster movable base 402, a rear caster 403, a caster pressing rod 406 seat 404, a caster hinge upper rod 405, and a caster pressing rod 406 , Caster hinge spring 407 and caster hinge lower rod 408 . The caster sleeve 401 has a notch at the end to cooperate with the caster movable base 402 to realize the sliding movement of the caster movable base 402 relative to the caster sleeve 401. Specifically, the caster sleeve 401 is fixed at the bottom of the support rear rod 106, and the caster sleeve The lower end of the cylinder 401 is open, and the lower end of the caster sleeve 401 is provided with at least one chute 410. The top of the caster movable base 402 can be freely slid up and down and installed in the opening of the lower end of the caster sleeve 401. The caster movable base 402 The side is provided with a guide block 411 that cooperates with the chute 410, the rear caster 403 is mounted on the lower end of the caster movable base 402 through a pin, the upper end of the upper rod 405 of the caster hinge is hingedly connected with the caster sleeve 401, and the caster hinge is connected to the caster sleeve 401. The lower end of the rod 405 is hingedly connected with the upper end of the lower rod 408 of the caster hinge, and the lower end of the lower rod 408 of the caster hinge is hingedly connected with the upper end of the movable base 402 of the caster. A caster hinge spring 407 is provided between the walls. The position of the caster hinge spring 407 makes the caster hinge upper rod 405 and the caster hinge lower rod 408 have a tendency to side bend and pull the caster movable base 402 upward. The caster sleeve 401 is provided with a A window, the caster pressing rod 406 seat 404 is installed at the window of the caster sleeve 401, the caster pressing rod 406 is installed on the caster pressing rod 406 seat 404 through the rotating shaft, and one side of the caster pressing rod 406 is provided with a The wedge block 409 at the hinged joint between the upper rod 405 of the caster hinge and the lower rod 408 of the caster hinge is squeezed.

The caster pressing rod 406 is externally buckled on the caster sleeve 401 (that is, the wedge-shaped block 409 faces outward), the caster hinge spring 407 is in an extended state, and the angle formed between the caster hinge upper rod 405 and the caster hinge lower rod 408 is an obtuse angle, and the rear caster 403 put away.

The caster pressing rod 406 is locked in the caster sleeve 401 (that is, the wedge-shaped block 409 presses the upper rod 405 of the caster hinge inwardly and the lower rod 408 of the caster hinge is hinged), the hinge spring 407 of the caster is in a compressed state, and the upper rod 405 of the caster hinge and the caster The angle formed by the hinge lower rod 408 is a compressed flat angle, and the rear caster 403 extends.

It should be noted that the straight state locking of the anti-return right link 111 and the anti-return left link 113 is not limited to the above-mentioned anti-return hasp 112 structure, but can also be other locking structures, such as the second embodiment, as shown in FIG. 9 . As shown, the anti-return sleeve 126, the inner end of the anti-return right link 111 and the anti-return left link 113 are hinged together, and the anti-return sleeve 126 is sheathed in the anti-return right link 111 and the anti-return left link 113. At the end hinge, 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 a straight state, move the anti-return sleeve 126 At the hinge, the anti-return right link 111 and the anti-return left link 113 are locked in a straight state. When the anti-return sleeve 126 is completely moved to the anti-return right link 111 or the anti-return left link 113, the The right-return link 111 and the anti-return left link 113 can be folded relatively freely.

The specific embodiment is as follows: the present invention can provide the functions of providing walking assistance, assisting up and down stairs, and temporary sitting and standing for the elderly.

As shown in FIG. 11 , when the anti-return right link 111 and the anti-return left link 113 are folded inward, the present invention is in a retracted state. The device is placed horizontally, and the upper short cross bar 212 and the lower short cross bar 213 of the handle device II are buckled on the escalator, and then due to the lever action, the friction force at the contact point between the handle device II and the escalator increases, making it a The elderly provide temporary assistance. When the old man pushes up the device, since the one-way roller 203 of the handle device II can roll in one direction, this action is easy to complete;

As shown in FIG. 12 , when the anti-return right link 111 and the anti-return left link 113 form a flat angle, the anti-return buckle 112 is in the buckled state, that is, the locking anti-return right link 111 and the anti-return left link 113 are flat. straight state. Twist the seat plate limiting block 110 to lower the triangular seat plate 107, and pull out the cloth tapes arranged on both sides of the triangular seat plate 107. The device can provide temporary sitting for the elderly.

As shown in FIG. 1 , when the anti-return right link 111 and the anti-return left link 113 form a flat angle, the anti-return hasp 112 is in a buckled state. Keeping the triangular seat plate 107 in a retracted state can provide a walking assistance function for the elderly.

Claims (10)

1. A multifunctional walking aid for the elderly, characterized in that: comprising two guide rail front rods, two supporting rear rods, a central scissor link, two linear sliders and two auxiliary links, two The tops of the rear support rods are respectively hinged at the same height of the two guide rail front rods, the central scissor link is installed between the two guide rail front rods, and the two link tops of the central scissor link are hinged on the two On the front rod of the guide rail, the bottoms of the two connecting rods of the central scissor link are hinged on two linear sliders respectively, and the two linear sliders can be freely slidably installed on the lower parts of the two front rods of the guide rail, and each Each block is hinged with an auxiliary link, and the other end of the auxiliary link is hinged on the supporting rear rod on the corresponding side. The top of the two guide rail front rods are respectively provided with a handle device that is easy to hold. The folding linkage adjusts and locks the relative distance. 2 . The multifunctional walking aid device according to claim 1 , wherein the adjustment of the foldable link mechanism comprises an anti-return right link, an anti-return left link and an anti-return buckle, and the anti-return right The outer side of the connecting rod and the anti-return left connecting rod are respectively hinged on the guide rail front rod on the corresponding side, and the inner ends of the anti-returning right connecting rod and the anti-returning left connecting rod are hinged together and locked together by the anti-return hasp to prevent the anti-returning. The right link and the anti-return left link are folded relative to each other, one end of the anti-return buckle is hinged on the anti-return left link, and the other end is provided with a first contact surface, and the anti-return right link is provided with a first contact surface. On the second contact surface opposite to the contact surface, the anti-return hasp is further provided with avoidance grooves for avoiding the hinge shafts at the inner ends of the anti-return right link and the anti-return left link. 3 . The multifunctional walking aid device according to claim 2 , wherein a walking aid mechanism is provided at the lower part of each of the front rods of the guide rails, and the walking aid mechanism comprises a horseshoe upper rod, a horseshoe lower rod and a The upper end of the upper rod of the horseshoe is hinged on the linear slider, the lower end is hinged to one end of the lower rod of the horseshoe, the middle part of the lower rod of the horseshoe is hinged to the lower part of the front rod of the guide rail, and the other end of the lower rod of the horseshoe is equipped with a front-end caster to assist in walking. 4. The multifunctional walking aid device according to claim 3, wherein a telescopic caster mechanism is provided at the bottom of each of the support rear rods, and the telescopic caster mechanism comprises a rear side caster, a caster movable base, Caster sleeve, caster hinge upper rod, caster hinge lower rod, caster pressure rod seat and caster pressure rod, the caster sleeve is fixed on the bottom of the support rear rod, the lower end of the caster sleeve is open, and the lower end of the caster sleeve is provided with At least one chute, the top of the caster movable base can be freely slid up and down and installed in the opening of the lower end of the caster sleeve, the side of the caster movable base is provided with a guide block that cooperates with the chute, and the rear caster is installed on the caster. The lower end of the movable base, the upper end of the upper rod of the caster hinge is hingedly connected to the caster sleeve, the lower end of the upper rod of the caster hinge is hingedly connected to the upper end of the lower rod of the caster hinge, the lower end of the lower rod of the caster hinge is hingedly connected to the upper end of the movable base of the caster, the caster There is a caster hinge spring between the hinge upper rod and the lower rod of the caster hinge and the side wall of the caster sleeve. The position of the caster hinge spring makes the upper rod of the caster hinge and the lower rod of the caster hinge have the tendency of side bending and pulling the movable base of the caster upward. , the caster sleeve is provided with a window, the caster pressure rod seat is installed at the window of the caster sleeve, the caster pressure rod is installed on the caster pressure rod seat through the rotating shaft, one side of the caster pressure rod A wedge block is provided for squeezing the hinged joint between the upper rod of the caster hinge and the lower rod of the caster hinge. 5. The multifunctional walking aid device according to claim 3, characterized in that: the handle device comprises an F-shaped main rod, a soft handle and a one-way roller, and the soft handle and the one-way roller are respectively installed on the F-shaped main rod. On the upper short crossbar and the lower short crossbar of the F-type main rod, the vertical rod of the F-type main rod is installed on the front rod of the guide rail through a handle height adjustment device, and the handle height adjustment device includes a handle height adjustment pressure rod, a handle The height adjustment base and the handle height adjustment return spring, the handle height adjustment base is installed on the upright pole of the F-type main pole through the connecting piece, and the handle height adjustment base is provided with a slide for the top of the front pole of the guide rail to freely pass through. The side of the handle height adjustment base is provided with a support, the middle part of the handle height adjustment pressure rod is installed on the support through a rotating pair, and a handle height is provided between one end of the handle height adjustment pressure rod and the handle height adjustment base Adjust the return spring, the other end is provided with a raised pin, the handle height adjustment base is provided with an opening for the raised pin to extend into the interior, and the front rod for the guide rail is provided with a plurality of pins that can be inserted by the raised pins. Positioning grooves, the height of the handle device can be adjusted by selecting the protruding pins to be inserted into different positioning grooves. 6 . The multifunctional walking aid device according to claim 5 , wherein the soft handle is provided with anti-skid patterns, and the vertical rod close to the upper short crossbar is provided with a snap ring for placing the flashlight. 7 . 7. The multifunctional walking aid device according to claim 5, wherein the one-way roller comprises a roller and a one-way bearing, wherein the two one-way bearings are respectively embedded at both ends of the roller, and the F-type main The lower short cross bar of the rod is fixed on the inner rings of the two one-way bearings, and the outer end of the drum is provided with a drum end cover for dust prevention. 8. The multifunctional walking aid device according to any one of claims 1-7, wherein the multifunctional walking aid device further comprises a seat cushion device, and the seat cushion device comprises two triangular seat plates, which are the first A long rod, a second long rod and a third short rod, the lower end side of the first long rod is provided with a connecting plate hinged on the side of the supporting rear rod. During the rotation of the triangular seat plate around the hinge point on the connecting plate, when the third When a long rod is parallel to the support rear rod, the first long rod is provided with a first contact surface that contacts the rear of the support rear rod, and when the third short rod is parallel to the support rear rod, the first long rod is provided with a first contact surface A soft seat cushion is connected between the first long rods of the two triangular seat plates on the third contact surface in contact with the rear part of the support rear rod. 9 . The multifunctional walking aid according to claim 1 , wherein the bottom of the support rear rod is provided with a rear foot support for anti-slipping, and the bottom of the front rod of the guide rail is provided with a front foot for anti-slipping. 10 . support. 10. The multifunctional walking aid device according to any one of claims 2-7, wherein the adjustment of the foldable link mechanism comprises an anti-return right link, an anti-return left link and an anti-return sleeve, The outer sides of the anti-return right connecting rod and the anti-returning left connecting rod are respectively hinged on the front rods of the guide rails on the corresponding sides, the inner ends of the anti-returning right connecting rod and the anti-returning left connecting rod are hinged together, and the anti-returning sleeve is sleeved on. The anti-return right link and the anti-return left link are hinged at the inner ends, and can be completely moved to the anti-return right link or the anti-return left link.

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