CN112830366B - A auxiliary device for old man goes up and down stairs - Google Patents
A auxiliary device for old man goes up and down stairs Download PDFInfo
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- CN112830366B CN112830366B CN202110086570.7A CN202110086570A CN112830366B CN 112830366 B CN112830366 B CN 112830366B CN 202110086570 A CN202110086570 A CN 202110086570A CN 112830366 B CN112830366 B CN 112830366B
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- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 230000009471 action Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 241001166076 Diapheromera femorata Species 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/06—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
- B66B9/08—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/06—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
- B66B9/08—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
- B66B9/0807—Driving mechanisms
- B66B9/0823—Screw and nut
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/06—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
- B66B9/08—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
- B66B9/0846—Guide rail
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention provides an auxiliary device for old people to go up and down stairs, and relates to the technical field of old people assisting instruments; the auxiliary device for the old to go up and down stairs comprises a driving mechanism, a fixing mechanism and a handrail; the fixing mechanism is arranged on the driving mechanism; the handrail comprises a first connecting rod, a second connecting rod, a first supporting rod, a second supporting rod, a first fixing buckle and a second fixing buckle; the first supporting rod is respectively movably connected with two ends of the first connecting rod; the second support rod is respectively movably connected with two ends of the second connecting rod; the first fixing buckle and the second fixing buckle are movably arranged on the first connecting rod and the second connecting rod respectively; the first supporting rod is hinged with the second supporting rod through a rotating shaft; a flexible stool surface is arranged between the first connecting rod and the second connecting rod, and the bottom of the flexible stool surface is respectively provided with a first connecting part and a second connecting part; the invention also provides a handrail; can avoid the incident that leads to because of the physical strength is not propped up when going up and down stairs effectively, and the function is various.
Description
Technical Field
The invention relates to the technical field of old people assisting instruments, in particular to an auxiliary device and an armrest for old people to go up and down stairs.
Background
At present, for some buildings with lower floor numbers and some old buildings, the floors are still lifted up and down by steps and stairs. The old people who are old or the disabled with inconvenient legs and feet can take more effort when climbing the stair, and the old or the disabled can fall down easily due to exhaustion, so that safety accidents are caused.
Therefore, it is urgently needed to develop an auxiliary device for the old people to go up and down stairs, which helps the old people to go up and down stairs safely and avoids safety accidents caused by physical weakness when the old people go up and down stairs.
Disclosure of Invention
The invention aims to develop an auxiliary device for old people to go up and down stairs, and solves the technical problem that safety accidents are easily caused due to insufficient physical strength when the old people go up and down stairs.
The embodiment of the invention provides an auxiliary device for old people to go up and down stairs, which comprises a driving mechanism, a fixing mechanism and a handrail, wherein the driving mechanism is arranged on the handrail;
the driving mechanism is used for driving the fixing mechanism to move linearly;
the fixing mechanism is arranged on the driving mechanism and used for fixing the handrail;
the handrail comprises a first connecting rod, a second connecting rod, two first supporting rods, two second supporting rods, two first connecting pieces, two second connecting pieces, two first fixing buckles and two second fixing buckles; the tops of the two first supporting rods are respectively movably connected with the two ends of the first connecting rod through the first connecting piece; the tops of the two second supporting rods are respectively movably connected with the two ends of the second connecting rod through the second connecting piece; the first fixing buckle and the second fixing buckle are movably arranged on the first connecting rod and the second connecting rod respectively; the first fixing buckle is used for enabling the first connecting rod and the first supporting rod to keep a straight rod state; the second fixing buckle is used for enabling the second connecting rod and the second supporting rod to keep a straight rod state; the first supporting rod and the second supporting rod are hinged through a rotating shaft, so that the first supporting rod and the second supporting rod can be folded into a folding straight rod state or an X-shaped supporting state; a flexible stool surface is arranged between the first connecting rod and the second connecting rod; the bottoms of the first supporting rod and the second supporting rod are respectively provided with a first connecting part and a second connecting part; the first connecting portion and the second connecting portion are used for being detachably connected with the fixing mechanism.
In some preferred embodiments, the first connecting member includes a third connecting portion and a fourth connecting portion which are integrally formed; the first supporting rod is rotatably connected with the third connecting part through a first rotating shaft; the fourth connecting part is rotatably connected with the first connecting rod through a second rotating shaft; the first rotating shaft and the second rotating shaft are vertically distributed;
the second connecting piece comprises a fifth connecting part and a sixth connecting part which are integrally formed; the second support rod is rotatably connected with the fifth connecting part through a third rotating shaft; the sixth connecting part is rotatably connected with the second supporting rod through a fourth rotating shaft; the third rotating shaft and the fourth rotating shaft are vertically distributed.
In some preferred embodiments, the first fixing buckle is movable along the length direction of the first connecting rod; a first groove is formed in the first fixing buckle; the upper side wall and the lower side wall in the first groove are oppositely provided with first limiting convex edges; a second groove matched with the first limiting convex rib for use is formed in the first connecting rod; the first fixing buckle is movably clamped on the first connecting rod through the matching of the first limiting convex rib and the second groove, so that the first connecting rod is positioned in the first groove; when the first support rod and the first connecting rod are in a straight rod state, the first fixing buckle can respectively move towards two ends of the first connecting rod, so that the first support rod and the first connecting rod can keep a straight rod state;
the second fixing buckle can move along the length direction of the second connecting rod; a third groove is formed in the second fixing buckle; the upper side wall and the lower side wall in the third groove are oppositely provided with second limiting convex edges; a fourth groove matched with the second limiting convex rib for use is formed in the second connecting rod; the second fixed buckle is movably clamped on the second connecting rod through the matching of the second limiting convex edge and the fourth groove, so that the second connecting rod is positioned in the third groove; when the second support rod and the second connecting rod are in a straight rod state, the second fixing buckle can move towards two ends of the second connecting rod respectively, so that the second support rod and the second connecting rod are kept in a straight rod state.
In some preferred embodiments, the armrest further comprises a first base and a second base;
a fifth groove is formed in the first base; the lower end of the first supporting rod is inserted into the fifth groove; a plurality of first pin holes are uniformly formed in the first base; the lower end of the first support rod is provided with a second pin hole matched with the first pin hole for use; the first base is detachably connected with the first support rod through the first pin hole, the second pin hole and a first pin; the first connecting part can be positioned inside or outside the fifth groove by adjusting the position of the first base on the first supporting rod;
a sixth groove is formed in the second base; the lower end of the second supporting rod is inserted into the sixth groove; a plurality of third pin holes are uniformly formed in the second base; the lower end of the second supporting rod is provided with a fourth pin hole matched with the third pin hole for use; the second base is detachably connected with the second supporting rod through the third pin hole, the fourth pin hole and a second pin; the second connecting part can be positioned inside or outside the sixth groove by adjusting the position of the second base on the second supporting rod.
In some more preferred embodiments, the first connection portion and the second connection portion are each semi-cylindrical; a first clamping groove is formed in the first connecting part; a second clamping groove is formed in the second connecting part; when the first supporting rod and the second supporting rod are folded into a folded straight rod state, the first connecting part and the second connecting part are pasted into a cylindrical shape, and the first clamping groove and the second clamping groove are communicated into an annular clamping groove; the handrail passes through the ring groove with fixed establishment joint.
In some preferred embodiments, the driving mechanism comprises a guide rail, a slider, a lead screw support and a motor; the sliding block is movably arranged on the guide rail; the lead screw supports are respectively arranged at two ends of the guide rail; the screw rod is rotatably arranged on the screw rod support; one end of the lead screw is connected with a rotating shaft of the motor; the fixing mechanism is arranged on the sliding block and is in threaded connection with the lead screw; the motor is matched with the lead screw and used for driving the fixing mechanism to move linearly along the guide rail.
In some preferred embodiments, the fixing mechanism comprises a housing, and a clamping assembly and a lead screw nut which are arranged inside the housing; a first through hole and a second through hole are oppositely arranged on two side walls of the shell; the first through hole, the second through hole and the lead screw nut are coaxially arranged; the aperture of the first through hole and the aperture of the second through hole are larger than the inner diameter of the screw nut; the fixing mechanism is in threaded connection with the lead screw through the lead screw nut; a third through hole is formed in the other side wall of the shell; the first connecting portion and the second connecting portion penetrate through the third through hole to be detachably connected with the clamping assembly.
In some more preferred embodiments, the clamping assembly comprises a first clamping plate, a second clamping plate, a first collet, and a second collet; the first clamping plate and the second clamping plate are oppositely arranged on the side wall in the shell from top to bottom and are respectively and rotatably connected with the side wall of the shell through a rotating shaft; one ends, far away from the third through hole, of the first clamping plate and the second clamping plate are elastically connected through a first spring; the first chuck and the second chuck are respectively and rotatably arranged at the other ends of the first clamping plate and the second clamping plate through rotating shafts; a second spring is arranged between the first chuck and the first clamping plate and is in a compressed state; a third spring is arranged between the second chuck and the second clamping plate and is in a compressed state; the first chuck is provided with a first semicircular bayonet; a second semicircular bayonet is arranged on the second chuck; when the handrail is not fixed, the first clamping head and the second clamping head are in an opening state under the action of the first spring; when the armrest needs to be fixed, the first connecting portion and the second connecting portion are inserted into the first clamping plate and the second clamping plate to be abutted through the third through hole, so that the first chuck and the second chuck rotate along with the first clamping plate and the second clamping plate, the first chuck and the second chuck are further in a closed state, and the first connecting portion and the second connecting portion are clamped in the shell; the first chuck and the second chuck are also respectively connected with a first pull rope and a second pull rope; the first pull rope and the second pull rope respectively extend to the outside of the shell; the first connecting portion and the second connecting portion can be taken out by pulling the first pulling rope and the second pulling rope to enable the first chuck and the second chuck to be in an open state.
The invention also provides an armrest which comprises a first connecting rod, a second connecting rod, two first supporting rods, two second supporting rods, two first connecting pieces, two second connecting pieces, two first fixing buckles and two second fixing buckles; the tops of the two first supporting rods are respectively movably connected with the two ends of the first connecting rod through the first connecting piece; the tops of the two second supporting rods are respectively movably connected with the two ends of the second connecting rod through the second connecting piece; the first fixing buckle and the second fixing buckle are movably arranged on the first connecting rod and the second connecting rod respectively; the first fixing buckle is used for enabling the first connecting rod and the first supporting rod to keep a straight rod state; the second fixing buckle is used for enabling the second connecting rod and the second supporting rod to keep a straight rod state; the first supporting rod and the second supporting rod are hinged through a rotating shaft, so that the first supporting rod and the second supporting rod can be folded into a folding straight rod state or an X-shaped supporting state; a flexible stool surface is arranged between the first connecting rod and the second connecting rod; the bottoms of the first supporting rod and the second supporting rod are respectively provided with a first connecting part and a second connecting part; the first connecting portion and the second connecting portion are used for being detachably connected with the fixing mechanism.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: the auxiliary device for the old to go up and down the stairs in the embodiment comprises a driving mechanism, a fixing mechanism and a handrail; the driving mechanism is used for driving the fixing mechanism to move linearly; the fixing mechanism is arranged on the driving mechanism and used for fixing the handrail; the handrail comprises a first connecting rod, a second connecting rod, two first supporting rods, two second supporting rods, two first connecting pieces, two second connecting pieces, two first fixing buckles and two second fixing buckles; the tops of the two first supporting rods are respectively movably connected with the two ends of the first connecting rod through the first connecting piece; the tops of the two second supporting rods are respectively movably connected with the two ends of the second connecting rod through the second connecting piece; the first fixing buckle and the second fixing buckle are movably arranged on the first connecting rod and the second connecting rod respectively; the first fixing buckle is used for enabling the first connecting rod and the first supporting rod to keep a straight rod state; the second fixing buckle is used for enabling the second connecting rod and the second supporting rod to keep a straight rod state; the first supporting rod and the second supporting rod are hinged through a rotating shaft, so that the first supporting rod and the second supporting rod can be folded into a folding straight rod state or an X-shaped supporting state; a flexible stool surface is arranged between the first connecting rod and the second connecting rod; the bottoms of the first supporting rod and the second supporting rod are respectively provided with a first connecting part and a second connecting part; the first connecting part and the second connecting part are detachably connected with the fixing mechanism; when the user needs to go up and down the stairs, the handrail is connected with the fixing mechanism through the first connecting part and the second connecting part, the driving mechanism drives the handrail to linearly move above the stairs, and the user can walk up and down the stairs by holding the handrail, so that safety accidents caused by physical weakness when the user walks up and down the stairs are avoided; in addition, when the user does not need to go up and down stairs, the handrail can be used as a walking stick and a stool, so that the functions are diversified, and the practicability of the handrail is improved.
Drawings
Fig. 1 is a schematic perspective view of an auxiliary device for elderly people going up and down stairs according to an embodiment of the present invention.
Fig. 2 is a schematic view showing the construction of the driving unit 1 of the auxiliary device for the elderly to ascend and descend stairs in fig. 1.
Fig. 3 is a schematic structural view of the auxiliary device for old people to go up and down stairs of fig. 1, in which the handrail 2 is folded to a straight bar state.
Fig. 4 is a schematic structural view illustrating the handrail 2 of the assisting apparatus for elderly people to go up and down stairs of fig. 1 folded into a straight rod shape, and one end of the first fixing buckle 23 and one end of the second fixing buckle 24 are respectively moved to the first supporting rod 25 and the second supporting rod 26.
Fig. 5 is a schematic structural view of the assist device for an old person to ascend and descend stairs of fig. 1 in a state where the handrail 2 is folded in an X-shaped support state.
Fig. 6 is another structural view illustrating the handrail 2 folded in an X-shaped supporting state in the assisting apparatus for an old person to ascend and descend stairs of fig. 1.
Fig. 7 is a partially enlarged schematic view of a portion a of the armrest 2 of fig. 6.
Fig. 8 is a schematic structural view of the first fixing buckle 23 in the armrest 2 in fig. 3.
Fig. 9 is a schematic structural view of the second fixing buckle 24 in the armrest 2 in fig. 3.
Fig. 10 is a schematic view of the first link 211 in the handrail 2 of fig. 3.
Fig. 11 is a schematic view of the second connector 212 in the handrail 2 of fig. 3.
Fig. 12 is a schematic structural view of the first base 271 of the armrest 2 of fig. 3.
Fig. 13 is a schematic structural view of the second base 281 of the armrest 2 in fig. 3.
Fig. 14 is a schematic structural view of the auxiliary device for old people going up and down stairs of fig. 1 when the first connecting part 29 and the second connecting part 210 are not inserted into the fixing mechanism 16.
Fig. 15 is a schematic structural view of the first coupling part 29 and the second coupling part 210 inserted into the fixing mechanism 16 in the auxiliary device for ascending and descending stairs of the elderly person of fig. 1.
Fig. 16 is a schematic structural view of the auxiliary device for elderly people going up and down stairs of fig. 1, in which the first connecting portion 29 and the second connecting portion 210 are inserted into the fixing mechanism 16 and the first clamping head 163 and the second clamping head 164 are in an open state.
Fig. 17 is a schematic structural view of the first collet 163 of the securing mechanism 16 of fig. 14.
Fig. 18 is a schematic view of the second jaw 164 of the securing mechanism 16 of fig. 14.
Fig. 19 is a schematic view of the first clamping plate 165 of the securing mechanism 16 of fig. 14.
Fig. 20 is a schematic view of the second clamping plate 166 of the securing mechanism 16 of fig. 14.
Wherein, 1, a driving mechanism; 11. a guide rail; 12. a lead screw; 13. a lead screw support; 14. a motor; 15. a slider; 16. a fixing mechanism; 161. a second spring; 162. a third spring; 163. a first chuck; 1631. a first spring connecting portion; 1632. a seventh connecting portion; 1633. a first semicircular bayonet; 164. a second chuck; 1641. a second spring connecting portion; 1642. an eighth connecting portion; 1643. a second semicircular bayonet; 165. a first splint; 1651. a third spring connecting portion; 1652. a fifth spring connecting part; 166. a second splint; 1661. a fourth spring connecting portion; 1662. a sixth spring connecting portion; 167. a first spring; 168. a first pull cord; 169. a second draw cord; 1610. a lead screw nut; 1611. a housing; 2. a handrail; 21. a first connecting rod; 22. a second connecting rod; 23. a first fixing buckle; 231. a first groove; 232. a first limit bead; 24. a second fixing buckle; 241. a third groove; 242. a second limiting convex rib; 25. a first support bar; 251. a fourth pin hole; 26. a second support bar; 261. a second pin hole; 27. a first base; 271. a fifth groove; 272. a first pin hole; 28. a second base; 281. a sixth groove; 282. a third pin hole; 29. a first connection portion; 210. a second connecting portion; 211. a first connecting member; 2111. a third connecting portion; 2112. a fourth connecting portion; 212. a second connecting member; 2121. a fifth connecting part; 2122. a sixth connecting portion; 213. a first card slot; 3. a staircase; 4. a wall.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 5, an embodiment of the present invention provides an auxiliary device for an elderly person to go up and down stairs, including a driving mechanism 1, a fixing mechanism 16, and a handrail 2.
The driving mechanism 1 is fixed on the wall 4 and used for driving the fixing mechanism 16 to move linearly.
The fixing mechanism 16 is fixedly disposed on the driving mechanism 1 by bolts, and is used for fixing the handrail 2.
The handrail 2 comprises a first connecting rod 21, a second connecting rod 22, two first supporting rods 25, two second supporting rods 26, two first connecting pieces 211, two second connecting pieces 212, two first fixing buckles 23 and two second fixing buckles 24; the top parts of the two first supporting rods 25 are respectively movably connected with the two ends of the first connecting rod 21 through first connecting pieces 211; the top parts of the two second support rods 26 are movably connected with the two ends of the second connecting rod 22 through second connecting pieces 212 respectively; the first fixing buckle 23 and the second fixing buckle 24 are movably arranged on the first connecting rod 21 and the second connecting rod 22 respectively; the first fixing buckle 23 is used for keeping the first connecting rod 21 and the first supporting rod 25 in a straight rod state; the second fixing buckle 24 is used for keeping the second connecting rod 22 and the second supporting rod 26 in a straight rod state; the first support rod 25 and the second support rod 26 are hinged through a rotating shaft, so that the first support rod 25 and the second support rod 26 can be folded into a folding straight rod state or an X-shaped support state; a flexible stool surface (not shown in the figure) is arranged between the first connecting rod 21 and the second connecting rod 22; the bottoms of the first and second support bars 25 and 26 are provided with first and second connection parts 29 and 210, respectively; the first and second support bars 25 and 26 are integrally formed with the first and second connection parts 29 and 210, respectively; the first and second coupling portions 29 and 210 are adapted to be removably coupled to the securing mechanism 16.
Specifically, in this embodiment, the flexible stool surface is made of canvas; two ends of the canvas are fixedly connected with the side walls of the first connecting rod 21 and the second connecting rod 22 through screws respectively.
Specifically, referring to fig. 10 and 11, the first connection piece 211 includes integrally formed third and fourth connection portions 2111 and 2112; the first support rod 25 is rotatably connected to the third connection portion 2111 via a first rotating shaft (not shown in the figure); the fourth connecting portion 2112 is rotatably connected to the first connecting rod 21 via a second rotating shaft (not shown); the first rotating shaft and the second rotating shaft are vertically distributed; the second connector 212 includes integrally formed fifth and sixth connecting portions 2121 and 2122; the second support rod 26 is rotatably connected to the fifth connecting portion 2121 via a third rotating shaft (not shown); the sixth connecting portion 2122 is rotatably connected to the second supporting rod 26 via a fourth rotating shaft (not shown); the third and fourth rotation shafts are vertically distributed such that the first and second support rods 25 and 26 can be flipped in three-dimensional space with respect to the first and second connection bars 21 and 22 by the first and second connection pieces 211 and 212, respectively.
Specifically, referring to fig. 3, 4, 8 and 9, the first fixing catch 23 may move in a length direction of the first connecting rod 21; the first fixing buckle 23 is provided with a first groove 231; the upper and lower side walls in the first groove 231 are oppositely provided with first limiting convex ribs 232; the first connecting rod 21 is provided with a second groove (not shown) matched with the first limiting convex rib 232; the first fixing buckle 23 is movably clamped on the first connecting rod 21 through the first limiting protruding rib 232 and the second groove, so that the first connecting rod 21 is located in the first groove 231; when the first support rod 25 and the first connection rod 21 are in a straight rod state, the first fixing buckle 23 can respectively move towards two ends of the first connection rod 21, so that two ends of the first fixing buckle 23 are respectively located on the first connection rod 21 and the first support rod 25, and the first support rod 25 and the first connection rod 21 can keep in a straight rod state.
The second fixing buckle 24 can move along the length direction of the second connecting rod 22; a third groove 241 is arranged on the second fixing buckle 24; the upper and lower side walls in the third groove 241 are oppositely provided with a second limiting convex rib 242; the second connecting rod 22 is provided with a fourth groove (not shown) matched with the second limiting convex rib 242; the second fixing buckle 24 is movably clamped on the second connecting rod 22 through the cooperation of the second limiting convex rib 242 and the fourth groove, so that the second connecting rod 22 is located in the third groove 241; when the second support rod 26 and the second connection rod 22 are in a straight rod state, the second fixing buckle 24 can move towards two ends of the second connection rod 22 respectively, so that two ends of the second fixing buckle 24 are located on the second connection rod 22 and the second support rod 26 respectively, and the second support rod 26 and the second connection rod 22 keep in a straight rod state.
Further, referring to fig. 5-7, 12 and 13, the armrest 2 further includes a first base 27 and a second base 28; the first base 27 is provided with a fifth groove 271; the fifth groove 271 penetrates through the upper and lower ends of the first base 27; the lower end of the first support rod 25 is inserted into the fifth groove 271; a plurality of first pin holes 272 are uniformly formed in the first base 27; the first pin holes 272 are linearly arranged; the lower end of the first support rod 25 is provided with a second pin hole 261 used with the first pin hole 272; by moving the first base 27 along the length direction of the first support rod 25, the second pin holes 261 can be sequentially arranged coaxially with the plurality of first pin holes 272, respectively; the first base 27 is detachably connected with the first support rod 25 through a first pin hole 272, a second pin hole 261 and a first pin (not shown in the figure); by adjusting the position of the first base 27 on the first support rod 25, the first connection portion 29 can be located inside or outside the fifth groove 271; it is desirable that when the armrest 2 is in use, the first coupling portion 29 is located outside the first base 27 by moving the first base 27 for coupling with the fixing mechanism 16; it is required that the first connection portion 29 is located inside the fifth groove 271 by moving the first base 27 when the crutch or the stool is used, for protecting the first connection portion 29.
The second base 28 is provided with a sixth groove 281; the sixth recess 281 penetrates upper and lower ends of the second base 28; the lower end of the second support rod 26 is inserted into the sixth groove 281; a plurality of third pin holes 282 are uniformly formed in the second base 28; the plurality of third pin holes 282 are linearly distributed; the lower end of the second support bar 26 is provided with a fourth pin hole 251 used with the third pin hole 282; by moving the second base 28 along the length direction of the second support rod 26, the fourth pin holes 251 are sequentially arranged coaxially with the plurality of third pin holes 282, respectively; the second base 28 is detachably connected to the second support bar 26 through a third pin hole 282, a fourth pin hole 251 and a second pin (not shown); by adjusting the position of the second base 28 on the second support bar 26, the second connecting portion 210 can be located inside or outside the sixth recess 281; it is desirable that the second connecting portion 210 is located outside the second base 28 for connection with the fixing mechanism 16 by moving the second base 28 when the armrest 2 is in use; it is desirable to protect the second connector 210 by moving the second base 28 so that the second connector 210 is located inside the sixth recess 281 when the crutch or the stool is in use.
The first connection portion 29 and the second connection portion 210 are respectively semi-cylindrical; the first connecting portion 29 is provided with a first card slot 213; correspondingly, a second card slot (not shown) is disposed on the second connecting portion 210 and is used in cooperation with the first card slot 213; when the first support rod 25 and the second support rod 26 are folded to be in a straight rod folding state, the first connecting portion 29 and the second connecting portion 210 are attached to form a cylinder, and the first clamping groove 213 and the second clamping groove are communicated to form an annular clamping groove; the handrail 2 is clamped with the fixing mechanism 16 through the annular clamping groove.
Specifically, referring to fig. 2, the driving mechanism 1 includes a guide rail 11, a slider 15, a lead screw 12, a lead screw holder 13, and a motor 14; when in use, the guide rail 11 is fixedly arranged on the wall 4 along the stairs 3; the slide block 15 is movably arranged on the guide rail 11; the lead screw supports 13 are distributed at two ends of the guide rail 11 and are fixed with the wall 4; the screw 12 is rotatably arranged on the screw support 13; one end of the screw 12 is connected with a rotating shaft of the motor 14; the motor 14 is fixedly arranged on the wall 4; the fixing mechanism 16 is arranged on the sliding block 15 and is in threaded connection with the lead screw 12; the motor 14 is coupled to the lead screw 12 for driving the fixing mechanism 16 to move linearly along the guide rail 11.
Specifically, referring to fig. 14-20, the securing mechanism 16 includes a housing 1611 and a clamping assembly and lead screw nut 1610 disposed inside the housing 1611; the housing 1611 is mounted on the slider 15 by bolts; a first through hole (not shown) and a second through hole (not shown) are oppositely arranged on two side walls of the housing 1611; the first through hole, the second through hole and the lead screw nut 1610 are coaxially arranged; the aperture of the first through hole and the aperture of the second through hole are larger than the inner diameter of the lead screw nut 1610, so that the lead screw 12 can be conveniently arranged in the lead screw nut 1610 in a penetrating manner; the lead screw nut 1610 is welded to the side wall of the housing 1611; the fixing mechanism 16 is in threaded connection with the lead screw 12 through a lead screw nut 1610; a third through hole (not shown) is formed on the other side wall of the housing 1611, and the third through hole is located on the side wall far from the wall 4; the first connecting part 29 and the second connecting part 210 penetrate through the third through hole to be detachably connected with the clamping assembly; when in use, the handrail 2 is fixed on the fixing mechanism 16 through the first connecting part 29 and the second connecting part 210, is vertically distributed with the wall 4, and extends to the upper part of the stair 3, so that a user can conveniently hold the handrail by hands.
The clamping assembly includes a first clamping plate 165, a second clamping plate 166, a first collet 163, and a second collet 164; the first clamping plate 165 and the second clamping plate 166 are arranged on the side wall in the housing 1611 in an up-down opposite manner, and are respectively connected with the side wall of the housing 1611 in a rotating manner through a rotating shaft; the middle positions of the first clamping plate 165 and the second clamping plate 166 are respectively connected with the side wall of the housing 1611 in a rotating way through rotating shafts; when the first clamping plate 165 and the second clamping plate 166 are distributed in parallel, the distance between the first clamping plate 165 and the second clamping plate 166 is equal to the diameter of the third through hole; one ends of the first and second clamping plates 165 and 166, which are away from the third through hole, are provided with third and fourth spring coupling parts 1651 and 1661; the third spring link portion 1651 and the fourth spring link portion 1661 are elastically connected by the first spring 167; the first spring 167 is in a stretched state, so that the distance between the ends of the first clamping plate 165 and the second clamping plate 166 close to the third through hole is larger than the distance between the ends far away from the third through hole; the first chuck 163 is provided with a first spring connecting part 1631 and a seventh connecting part 1632; the second chuck 164 is provided with a second spring connecting part 1641 and an eighth connecting part 1642; the seventh connecting portion 1632 and the eighth connecting portion 1642 are respectively connected with the other ends of the first clamping plate 165 and the second clamping plate 166 through rotating shafts, so that the first clamping head 163 and the second clamping head 164 are rotatably connected with the first clamping plate 165 and the second clamping plate 166; a second spring 161 is disposed between the first spring connecting portion 1631 and the fifth spring connecting portion 1652, and the second spring 161 is in a compressed state; when the armrest 2 is not fixed, the first clamp 163 and the first clamp plate 165 are in a vertical state; a third spring 162 is disposed between the second spring coupling portion 1641 and the sixth spring coupling portion 1662, the third spring 162 being in a compressed state; when the handrail 2 is not fixed, the second clamping head 164 and the second clamping plate 166 are in a vertical state; the first chuck 163 is provided with a first semicircular clamping opening 1633; the second chuck 164 is provided with a second semicircular bayonet 1643; when the armrest 2 is not fixed, the first clamp 163 and the second clamp 164 are in an open state by the first spring 167; when the armrest 2 needs to be fixed, the first connecting portion 29 and the second connecting portion 210 are inserted through the third through hole to abut against the first clamping plate 165 and the second clamping plate 166, so that the first clamping head 163 and the second clamping head 164 rotate along with the first clamping plate 165 and the second clamping plate 166, the first clamping head 163 and the second clamping head 164 are in a closed state, and are clamped with the first clamping groove 213 and the second clamping groove, and the first connecting portion 29 and the second connecting portion 210 are clamped in the housing 1611; the first clamp 163 and the second clamp 164 are further connected with a first pull rope 168 and a second pull rope 169, respectively; the upper and lower side walls of the housing 1611 are respectively provided with an avoiding hole (not shown) for facilitating the first pulling rope 168 and the second pulling rope 169 to extend to the outside of the housing 1611; the first pulling rope 168 and the second pulling rope 169 extend to the outside of the housing 1611; by pulling the first and second pulling wires 168 and 169, the first and second chucks 163 and 164 are opened, and the engagement with the first and second engaging grooves 213 and 210 is released, whereby the first and second connection portions 29 and 210 can be taken out.
The use method of the auxiliary device for the old to go up and down stairs in the embodiment comprises the following steps:
when the handrail 2 is used to go up and down the stairs 3, the handrail 2 is in a straight rod shape, the first connecting portion 29 and the second connecting portion 210 are inserted into the first clamping plate 165 and the second clamping plate 166 through the third through hole to abut against the first clamping plate 165 and the second clamping plate 166, so that the first clamping head 163 and the second clamping head 164 rotate along with the first clamping plate 165 and the second clamping plate 166, the first clamping head 163 and the second clamping head 164 are further in a closed state and are clamped with the first clamping groove 213 and the second clamping groove, and the first connecting portion 29 and the second connecting portion 210 are clamped in the shell 1611, so that the handrail 2 is fixed; a user holds the handrail 2 with a hand, the motor 14 is started, the driving mechanism 1 drives the handrail 2 to linearly move along the stairs 3, and the user can go up and down the stairs 3 by holding the handrail 2, so that the safety and labor saving effects are achieved, and safety accidents caused by insufficient physical strength when going up and down the stairs 3 are avoided;
after going up and down the stairs 3, the first clamp 163 and the second clamp 164 are in an open state by pulling the first pull rope 168 and the second pull rope 169, and the first clamp 213 and the second clamp are disengaged, so that the first connection part 29 and the second connection part 210 can be taken out, and the taking and the placing are convenient.
The armrest 2 in this embodiment may also be used as a crutch and a stool, and may be used as a crutch when the armrest 2 maintains a straight-bar state; when the stool is used, the first fixing buckle 23 and the second fixing buckle 24 are respectively moved to be completely positioned on the first connecting rod 21 and the second connecting rod 22, and the first supporting rod 25 and the second supporting rod 26 are rotated to be respectively vertical to the first connecting rod 21 and the second connecting rod 22; the first connecting rod 21 and the second connecting rod 22 are pulled outwards, so that the first supporting rod 25 and the second supporting rod 26 are in an X-shaped supporting state; the flexible stool surface between the first connecting rod 21 and the second connecting rod 22 is pulled open; the positions of the first and second bases 27 and 28 on the first and second support bars 25 and 26 are adjusted so that the first and second connection portions 29 and 210 are hidden in the fifth and sixth grooves 271 and 281, respectively, and thus, the stool can be used.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The embodiments and features of the embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. An auxiliary device for old people to go up and down stairs is characterized by comprising a driving mechanism, a fixing mechanism and a handrail;
the driving mechanism is used for driving the fixing mechanism to move linearly;
the fixing mechanism is arranged on the driving mechanism and used for fixing the handrail;
the handrail comprises a first connecting rod, a second connecting rod, two first supporting rods, two second supporting rods, two first connecting pieces, two second connecting pieces, two first fixing buckles and two second fixing buckles; the tops of the two first supporting rods are respectively movably connected with the two ends of the first connecting rod through the first connecting piece; the tops of the two second supporting rods are respectively movably connected with the two ends of the second connecting rod through the second connecting piece; the first fixing buckle and the second fixing buckle are movably arranged on the first connecting rod and the second connecting rod respectively; the first fixing buckle is used for enabling the first connecting rod and the first supporting rod to keep a straight rod state; the second fixing buckle is used for enabling the second connecting rod and the second supporting rod to keep a straight rod state; the first supporting rod and the second supporting rod are hinged through a rotating shaft, so that the first supporting rod and the second supporting rod can be folded into a folding straight rod state or an X-shaped supporting state; a flexible stool surface is arranged between the first connecting rod and the second connecting rod; the bottoms of the first supporting rod and the second supporting rod are respectively provided with a first connecting part and a second connecting part; the first connecting part and the second connecting part are detachably connected with the fixing mechanism;
the driving mechanism comprises a guide rail, a sliding block, a lead screw support and a motor; the sliding block is movably arranged on the guide rail; the lead screw supports are respectively arranged at two ends of the guide rail; the screw rod is rotatably arranged on the screw rod support; one end of the lead screw is connected with a rotating shaft of the motor; the fixing mechanism is arranged on the sliding block and is in threaded connection with the lead screw; the motor is matched with the lead screw and used for driving the fixing mechanism to move linearly along the guide rail;
the fixing mechanism comprises a shell, a clamping assembly and a lead screw nut, wherein the clamping assembly and the lead screw nut are arranged in the shell; a first through hole and a second through hole are oppositely arranged on two side walls of the shell; the first through hole, the second through hole and the lead screw nut are coaxially arranged; the aperture of the first through hole and the aperture of the second through hole are larger than the inner diameter of the screw nut; the fixing mechanism is in threaded connection with the lead screw through the lead screw nut; a third through hole is formed in the other side wall of the shell; the first connecting part and the second connecting part penetrate through the third through hole to be detachably connected with the clamping assembly;
the clamping assembly comprises a first clamping plate, a second clamping plate, a first clamping head and a second clamping head; the first clamping plate and the second clamping plate are oppositely arranged on the side wall in the shell from top to bottom and are respectively and rotatably connected with the side wall of the shell through a rotating shaft; one ends, far away from the third through hole, of the first clamping plate and the second clamping plate are elastically connected through a first spring; the first chuck and the second chuck are respectively and rotatably arranged at the other ends of the first clamping plate and the second clamping plate through rotating shafts; a second spring is arranged between the first chuck and the first clamping plate and is in a compressed state; a third spring is arranged between the second chuck and the second clamping plate and is in a compressed state; the first chuck is provided with a first semicircular bayonet; a second semicircular bayonet is arranged on the second chuck; when the handrail is not fixed, the first clamping head and the second clamping head are in an opening state under the action of the first spring; when the armrest needs to be fixed, the first connecting portion and the second connecting portion are inserted into the first clamping plate and the second clamping plate to be abutted through the third through hole, so that the first chuck and the second chuck rotate along with the first clamping plate and the second clamping plate, the first chuck and the second chuck are further in a closed state, and the first connecting portion and the second connecting portion are clamped in the shell; the first chuck and the second chuck are also respectively connected with a first pull rope and a second pull rope; the first pull rope and the second pull rope respectively extend to the outside of the shell; the first connecting portion and the second connecting portion can be taken out by pulling the first pulling rope and the second pulling rope to enable the first chuck and the second chuck to be in an open state.
2. The assistive device for elderly to go up and down stairs of claim 1, wherein the first connector comprises a third connecting part and a fourth connecting part which are integrally formed; the first supporting rod is rotatably connected with the third connecting part through a first rotating shaft; the fourth connecting part is rotatably connected with the first connecting rod through a second rotating shaft; the first rotating shaft and the second rotating shaft are vertically distributed;
the second connecting piece comprises a fifth connecting part and a sixth connecting part which are integrally formed; the second support rod is rotatably connected with the fifth connecting part through a third rotating shaft; the sixth connecting part is rotatably connected with the second supporting rod through a fourth rotating shaft; the third rotating shaft and the fourth rotating shaft are vertically distributed.
3. The assisting apparatus for the elderly to ascend and descend stairs according to claim 1, wherein the first fixing clip is movable in a length direction of the first connecting rod; a first groove is formed in the first fixing buckle; the upper side wall and the lower side wall in the first groove are oppositely provided with first limiting convex edges; a second groove matched with the first limiting convex rib for use is formed in the first connecting rod; the first fixing buckle is movably clamped on the first connecting rod through the matching of the first limiting convex rib and the second groove, so that the first connecting rod is positioned in the first groove; when the first support rod and the first connecting rod are in a straight rod state, the first fixing buckle can respectively move towards two ends of the first connecting rod, so that the first support rod and the first connecting rod can keep a straight rod state;
the second fixing buckle can move along the length direction of the second connecting rod; a third groove is formed in the second fixing buckle; the upper side wall and the lower side wall in the third groove are oppositely provided with second limiting convex edges; a fourth groove matched with the second limiting convex rib for use is formed in the second connecting rod; the second fixed buckle is movably clamped on the second connecting rod through the matching of the second limiting convex edge and the fourth groove, so that the second connecting rod is positioned in the third groove; when the second support rod and the second connecting rod are in a straight rod state, the second fixing buckle can move towards two ends of the second connecting rod respectively, so that the second support rod and the second connecting rod are kept in a straight rod state.
4. The assistance device for elderly people going upstairs and downstairs of claim 1, wherein the handrail further comprises a first base and a second base;
a fifth groove is formed in the first base; the lower end of the first supporting rod is inserted into the fifth groove; a plurality of first pin holes are uniformly formed in the first base; the lower end of the first support rod is provided with a second pin hole matched with the first pin hole for use; the first base is detachably connected with the first support rod through the first pin hole, the second pin hole and a first pin; the first connecting part can be positioned inside or outside the fifth groove by adjusting the position of the first base on the first supporting rod;
a sixth groove is formed in the second base; the lower end of the second supporting rod is inserted into the sixth groove; a plurality of third pin holes are uniformly formed in the second base; the lower end of the second supporting rod is provided with a fourth pin hole matched with the third pin hole for use; the second base is detachably connected with the second supporting rod through the third pin hole, the fourth pin hole and a second pin; the second connecting part can be positioned inside or outside the sixth groove by adjusting the position of the second base on the second supporting rod.
5. The assisting apparatus for elderly people to walk up and down stairs of claim 4, wherein the first connecting portion and the second connecting portion are respectively semi-cylindrical; a first clamping groove is formed in the first connecting part; a second clamping groove is formed in the second connecting part; when the first supporting rod and the second supporting rod are folded into a folded straight rod state, the first connecting part and the second connecting part are pasted into a cylindrical shape, and the first clamping groove and the second clamping groove are communicated into an annular clamping groove; the handrail passes through the ring groove with fixed establishment joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110086570.7A CN112830366B (en) | 2021-01-22 | 2021-01-22 | A auxiliary device for old man goes up and down stairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110086570.7A CN112830366B (en) | 2021-01-22 | 2021-01-22 | A auxiliary device for old man goes up and down stairs |
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| Publication Number | Publication Date |
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| CN112830366A CN112830366A (en) | 2021-05-25 |
| CN112830366B true CN112830366B (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110086570.7A Expired - Fee Related CN112830366B (en) | 2021-01-22 | 2021-01-22 | A auxiliary device for old man goes up and down stairs |
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| Country | Link |
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| CN (1) | CN112830366B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04183479A (en) * | 1990-11-20 | 1992-06-30 | Natl House Ind Co Ltd | Refuge device |
| KR100738261B1 (en) * | 2006-11-28 | 2007-07-11 | (주)홍주산업 | Stairs structure for handicapped person and infant of building |
| CN209974052U (en) * | 2019-06-19 | 2020-01-21 | 黑龙江建筑职业技术学院 | Auxiliary lifting device for existing stairs |
| CN211278247U (en) * | 2019-11-25 | 2020-08-18 | 江油川一精机有限公司 | Forceps holder suitable for narrow and small position screw dismouting |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3601548A1 (en) * | 1986-01-21 | 1986-08-07 | Gerhard 4150 Krefeld Fabritz | Transportable spectator-stand element |
| CN2205135Y (en) * | 1994-11-15 | 1995-08-16 | 王毅 | Changeable walking stick |
| JPH10179663A (en) * | 1996-12-27 | 1998-07-07 | Matsushita Electric Ind Co Ltd | Support device for stepping up/down stairs |
| CN201718626U (en) * | 2010-05-17 | 2011-01-26 | 陈婧雯 | Multipurpose deformation booster |
| GB2480674B (en) * | 2010-05-28 | 2013-07-17 | Gw Innovation Ltd | Stairlift with separate handle and seat |
| EP2514885B1 (en) * | 2011-04-19 | 2017-01-25 | Stairsteady, Ltd. | New locking system for a stair assistance device |
| CN202445278U (en) * | 2011-10-12 | 2012-09-26 | 李云帆 | Foldable closestool crutch stool |
| CN202311589U (en) * | 2011-11-07 | 2012-07-11 | 上海市格致中学 | Crutch with tongs |
| GB201309982D0 (en) * | 2013-06-05 | 2013-07-17 | Assitech As | Stair assistance device |
| CN203828800U (en) * | 2014-04-14 | 2014-09-17 | 宋晓光 | Hand shank for the old |
| CN104511668A (en) * | 2014-12-03 | 2015-04-15 | 重庆帝舟生态农业发展有限公司 | Shaft clamp capable of replacing clamping head |
| CN204635307U (en) * | 2015-05-29 | 2015-09-16 | 中国地质大学（武汉） | A kind of walking stick for old persons |
| CN108439146A (en) * | 2018-06-15 | 2018-08-24 | 刘洪润 | Suspension type passageway lift |
| CN208858076U (en) * | 2018-09-27 | 2019-05-14 | 马林志 | A kind of stair safety walking handrail |
| CN211431820U (en) * | 2020-02-18 | 2020-09-08 | 南京林业大学 | Multifunctional armrest folding chair for old people |
| CN111591857A (en) * | 2020-04-27 | 2020-08-28 | 泉州信息工程学院 | Stair climbing assisting device and using method thereof |
-
2021
- 2021-01-22 CN CN202110086570.7A patent/CN112830366B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04183479A (en) * | 1990-11-20 | 1992-06-30 | Natl House Ind Co Ltd | Refuge device |
| KR100738261B1 (en) * | 2006-11-28 | 2007-07-11 | (주)홍주산업 | Stairs structure for handicapped person and infant of building |
| CN209974052U (en) * | 2019-06-19 | 2020-01-21 | 黑龙江建筑职业技术学院 | Auxiliary lifting device for existing stairs |
| CN211278247U (en) * | 2019-11-25 | 2020-08-18 | 江油川一精机有限公司 | Forceps holder suitable for narrow and small position screw dismouting |
Non-Patent Citations (1)
| Title |
|---|
| 基于居家养老模式的适老化住宅设计研究;朱东琪等;《美与时代(城市版)》;20181125(第11期);全文 * |
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| CN112830366A (en) | 2021-05-25 |
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Granted publication date: 20220503 |