CN112120857A

CN112120857A - Foldable toilet device for helping old people

Info

Publication number: CN112120857A
Application number: CN202011062896.8A
Authority: CN
Inventors: 王廷剑; 王高生; 潘文伟; 王文韬; 庞金生; 张嘉程; 涂小玉; 梁海; 张宇; 陈民昌
Original assignee: Tianjin University of Technology and Education China Vocational Training Instructor Training Center
Current assignee: Tianjin University of Technology and Education China Vocational Training Instructor Training Center
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2020-12-25

Abstract

A foldable device for helping the old to go to the toilet relates to old-helping equipment. The lower extreme of supporting baseplate is equipped with walking wheel supporting baseplate's front end and is fixed with the running-board, and folding mechanism and slide rail folding joint are passed through to supporting baseplate's upper end, and the slide rail is connected with the bedplate through mechanical pressure-sensitive mechanism, and the bedplate passes through the back actuating system structure to be connected with the back, and back and bedplate are connected with the handrail. The invention can realize two normal states of helping the old and assisting the old to sit, is labor-saving and safe, is simple to operate, can be automatically folded and stored in a non-use state of the old and occupies less space.

Description

Foldable toilet device for helping old people

Technical Field

The invention relates to an old-age assisting device, in particular to a foldable old-age assisting toilet device.

Background

The rise of the 5G era, the intelligent convenient wheelchair is a necessary tool for the old to go to the toilet conveniently, and the old can face the wet wall corner on the ground to be hard and easy to collide and slide to be injured due to the fact that the existing wheelchair is simple, rough and not easy to use. The existing intelligent wheelchair for helping the old to go to the toilet is used for enabling the old who is alone at home to go to the toilet conveniently, the old can face the problems that the wall corner is wet and slippery on the ground and is hard and easy to collide with and slide to be injured in the toilet process, the problem that the old can be conveniently and automatically folded and stored after being used is solved, and the occupied space is reduced, so that the safety and the comfort of the old are improved while the existing wheelchair is improved.

Disclosure of Invention

In order to solve the problems in the background art, the invention provides a foldable old-people toilet assisting device.

The invention adopts the following technical scheme: a foldable old people toilet assisting device comprises a slide rail, a supporting bottom plate, a pedal plate, a handrail, a backrest, a seat plate, a backrest driving system mechanism, a mechanical pressure sensing mechanism, a folding mechanism and a travelling wheel; the walking wheel support base plate is arranged at the lower end of the support base plate, a pedal is fixed at the front end of the support base plate, the upper end of the support base plate is connected with a sliding rail in a folding mode through a folding mechanism, the sliding rail is connected with the seat plate through a mechanical pressure sensing mechanism, the seat plate is connected with a backrest through a backrest driving system mechanism, and the backrest and the seat plate are connected with handrails.

Compared with the prior art, the invention has the beneficial effects that:

the invention can realize two normal states of helping the old and assisting the old to sit, is labor-saving and safe, is simple to operate, can be automatically folded and stored in a non-use state of the old and occupies less space.

Drawings

FIG. 1 is an isometric view of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a front view of the mechanical pressure sensing mechanism;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is an exploded view of FIG. 3;

FIG. 6 is a diagram of the motion process of FIG. 3, wherein

(a) The mechanical pressure sensing mechanism comprises the following motion steps: the gear and the rack are separated;

(b) the second motion step of the mechanical pressure sensing mechanism is as follows: the lower and upper ratchet bars are closed;

(c) the third motion step of the mechanical pressure sensing mechanism is as follows: the rack is meshed with the gear;

(d) the movement step four of the mechanical pressure-sensitive mechanism is as follows: the four-bar linkage rotates downward, and the gear 211 rotates simultaneously;

(e) the motion step five of the mechanical pressure sensing mechanism is as follows: the lower ratchet moves upwards and is automatically locked;

(f) the mechanical pressure sensing mechanism comprises the following movement steps: the linear motion of the rack drives the gear and the rotary motion of the four-bar hinge mechanism;

(g) the motion step seven of the mechanical pressure sensing mechanism is as follows: the mechanical pressure sensing mechanism moves leftwards integrally to drive the gear and the hinge four-bar mechanism to rotate;

FIG. 7 is a schematic structural view of a mechanism of the backrest drive system;

FIG. 8 is a schematic illustration of the present invention in normal use;

FIG. 9 is a side view of FIG. 8;

FIG. 10 is a schematic view of the present invention in a folded state;

FIG. 11 is a side view of FIG. 10;

FIG. 12 is a schematic structural view of the invention in a boost or pre-toilet state.

Detailed Description

The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.

The first embodiment is as follows: as shown in fig. 1 to 12, the present invention discloses a foldable old people toilet assisting device, which comprises a sliding rail 27, a supporting base plate 15, a pedal plate 62, a handrail 5, a backrest 41, a seat plate 61, a backrest driving system mechanism 2010, a mechanical pressure-sensitive mechanism 2011, a folding mechanism and a traveling wheel; the lower end of the supporting base plate 15 is provided with walking wheels (the walking wheels are two universal wheels 9 and two driving wheels 12, the left side and the right side of the front end of the supporting base plate 15 are respectively fixed with one driving wheel motor 33, each driving wheel motor 33 respectively drives the corresponding driving wheel 12, the left side and the right side of the rear end of the supporting base plate 15 are respectively fixed with one universal wheel 9), the front end of the supporting base plate 15 is fixed with a pedal plate 62, and the pedal plate 62 is preferably made of rubber, so that the anti-skid performance is improved; the upper end of the supporting bottom plate 15 is connected with the sliding rail 27 in a folding mode through a folding mechanism, the sliding rail 27 is connected with the seat plate 61 through a mechanical pressure sensing mechanism 2011, the seat plate 61 is connected with the backrest 41 through a backrest driving system mechanism 2010, and the backrest 41 and the seat plate 61 are connected with the armrests 5 through the parallelogram connecting rods 31.

The second embodiment is as follows: as shown in fig. 1, the present embodiment is further described with respect to the first embodiment, the folding mechanism includes two folding portions disposed at the left and right ends of the supporting bottom plate 15 in parallel, each of the folding portions includes a travel limit switch 10, a linear motor 11, a connecting plate 13, a shell 29 with a ratchet structure, and an X-shaped folding frame 30; the linear motor 11 is horizontally fixed at the front end of the support base plate 15, the outer end of the linear motor 11 is provided with a protection plate 67, the upper end of the linear motor 11 is provided with a limit support mechanism 16, the movable end of the linear motor 11 is matched with the travel limit switch 10 through the linear motor joint 18, the linear motor joint 18 is provided with the travel limit switch 10 when reaching a preset travel position in the movement process, the linear motor 11 is connected with one end of the lower end of the vertically arranged X-shaped folding frame 30, the other end of the lower end of the X-shaped folding frame 30 is connected with the support base plate 15 through the X-shaped folding frame hinge 64, one end of the upper end of the X-shaped folding frame 30 is slidably connected with the slide rail 27 through the slide block 19, the slide block 19 is fixedly connected with the ratchet bar structure shell 29 through the connecting plate 13, and the other end of the upper.

The third concrete implementation mode: as shown in fig. 3, 4, 5 and 6, this embodiment is further described with respect to the second embodiment, and the backrest driving system 2010 includes a middle support 39, a gear 211, a rack 219, an upper ratchet 236, a lower ratchet 256, a four-bar hinge mechanism 68, a fixed guide 204, a support frame 238, a return pin 240, a lower ratchet 256 and a rotating shaft 291; the interior of the shell 29 is fixedly connected with the supporting frame 238 through a set screw 258, the supporting frame 238 is internally provided with a horizontally arranged lower ratchet 256 capable of moving up and down (a plurality of fixing mandrels 201 are arranged in a positioning hole at the lower end of the supporting frame 238 in a matching way, the outer sides of the plurality of fixing mandrels 201 are sleeved with springs 206, the upper ends of the plurality of fixing mandrels 201 are fixedly connected with the lower ratchet 256, two ends of each spring 206 are respectively abutted against the lower ratchet 256 and the supporting frame 238, so that the lower ratchet 256 can move up and down in the supporting frame 238), the lower ratchet 256 is meshed with the upper ratchet 236 and is connected with the upper ratchet 236 through a fixing guide 204 in a matching way, the upper ratchet 236 is slidably connected with the supporting frame 238 through a sliding groove, the upper ratchet 236 is fixedly connected with a rack 219 through a plurality of hexagon socket head screws 257, the rack 219 is meshed with a vertically arranged gear 211, the gear 211 is fixedly sleeved at one end of the rotating, the end surface of the rotating shaft 291 is fixedly connected with the hinge four-bar mechanism 68, the other end of the rotating shaft 291 is rotatably connected with the middle support 39 through a first bearing 292, the outer side of the first bearing 292 is pressed through a bearing retainer ring 290, and a bearing transparent cover 294 is also arranged; the middle support 39 is fixed at the upper end of the slide rail 27, the outer side of the support frame 238 is elastically connected with a return pin 240 through a return spring 244, the return pin 240 is connected with an upper ratchet 236, a sleeve 293 is further arranged between the rotating shaft 291 and the gear 211, and the sleeve 293 is pressed by a shaft end retainer 175 and a screw 176.

The fourth concrete implementation mode: as shown in fig. 7, in this embodiment, a description is further made of a first or third embodiment, where the mechanical pressure-sensitive mechanism 2011 includes a seat back cover 36, a movable shaft 113, and a steering engine 118; the seat plate 61 is connected with the hinge four-bar mechanism 68 and the rear end is provided with a seat rear cover 36, a steering engine 118 is arranged in the seat rear cover 36, the steering engine 118 is horizontally arranged and is fixedly connected with a movable shaft 113, the movable shaft 113 is fixedly connected with the backrest 41 (the steering engine 118 is connected with the movable shaft 113 through a steering engine flange plate 114, the movable shaft 113 is rotatably connected with the seat rear cover 36 through a second bearing 620, the left side of the second bearing 620 is pressed by a flange plate 102, the flange plate 102 is connected with the left backrest 41, and the shaft 113 is connected with the backrest 41 by a bolt 112.

The invention is based on the functional positioning of the old people toileting device, combines the motion scheme design and the three-dimensional structure design of a mechanical system, and the mechanical system has three main mechanical functions of sitting assisting, standing assisting and integral folding, and can effectively assist the old people to finish a series of actions in the toileting process.

When the folding toilet is used, as shown in fig. 1, the old people can automatically open the folding toilet-assisting device through wireless control (Bluetooth control, wifi control and the like). In the opening process, the X-shaped folding leg 30 drives the slider 19 to move backwards by the driving force of the linear motor 11, the slide rail 27 is simultaneously lifted up in the backward movement process of the slider 19, the slider 19 is connected with the connecting plate 13, the linkage effect is utilized in the backward movement process, the ratchet bar structure shell 29 is simultaneously driven to move together, the mechanical pressure-sensitive mechanism 2011 is driven to move by the movement of the ratchet bar structure shell 29, and (a) is a movement step one of the mechanical pressure-sensitive mechanism 2011, namely, the gear 211 is separated from the rack 219, as shown in fig. 3-6; (b) a second step of moving the mechanical pressure-sensitive mechanism 2011, in which the lower ratchet 256 is disengaged from the fixed guide 204 and closed with the upper ratchet 236, a third step of moving the mechanical pressure-sensitive mechanism 2011, in the third step, the rack 219 is meshed with the gear 211, and the linear motion of the rack 219 drives the gear 211 to rotate in the motion process, so as to drive the four-bar linkage 68 to rotate, the seat plate 61 is lifted during the rotation of the four-bar linkage 68, and the steering engine 118 is operated simultaneously when the linear motor 11 is started, the rotation angle of the steering engine 118 is controlled by a program, the backrest 41 is driven by the rotation of the steering engine 118 to rotate and open by the shaft 113, the backrest 41 is rotated and opened, and simultaneously the armrests are lifted, the armrests 5 keep the parallel relation between the armrests 5 and the seat board 61 by utilizing the parallelogram connecting rods 31, and the sitting-assisting state of the old in using the toilet is achieved.

The sitting-assisting function:

the elderly confirm that the relative button is pressed down for defecation and rotate the steering engine 118 by a second rotation angle through the wireless control, meanwhile, the mechanical pressure-sensitive mechanism 2011 depends on the self gravity of the old to enable the seat plate 61 to descend, the four-bar hinge mechanism 68 rotates downwards in the descending process of the seat plate 61 as shown in (d) of fig. 6, which is the movement step four of the mechanical pressure-sensitive mechanism 2011, the four-bar linkage 68 rotates downward, the gear 211 rotates simultaneously, the rotational movement of the gear 211 drives the rack 219 to move linearly leftward, the rack 219 and the upper ratchet 236 are connected to each other and move linearly leftwards to move the lower ratchet 256 downwards, and after the sitting assistance is finished, as shown in fig. 6, (e) in the fifth step of moving the mechanical pressure-sensitive mechanism 2011, the lower ratchet 256 moves upwards and is automatically locked, the old man can normally go to the toilet under the combined action of the gravity of the old man and the friction force and the spring resistance of the ratchet device.

The function of helping play:

when the old people need to stand up after completing a toilet, the old people press the lifting-aid button, the linear motor 11 drives the X-shaped folding frame 30 to drive the sliding block 19 to move backwards, the sliding block 19 simultaneously lifts the sliding rail 27 in the backward movement process, the sliding block 19 is connected with the connecting plate 13, the linkage effect is utilized in the backward movement process, the ratchet structure shell 29 is simultaneously driven to move together, the ratchet structure shell 29 moves to drive the mechanical pressure-sensitive mechanism 2011 to move, the movement step six of the mechanical pressure-sensitive mechanism 2011 is shown by combining the attached drawings 3-6, the linear movement of the rack 219 in the movement step six drives the rotary movement of the gear 211 and the hinge four-bar mechanism 68, the seat plate 61 is lifted in the rotation process of the hinge four-bar mechanism 68, the linear motor 11 is started and the steering engine 118 simultaneously operates, the rotation angle of the steering engine 118 is controlled to be vertical to the ground through a program, when the linear motor 11 reaches the travel limit switch 10, the seat plate rotates upwards to a certain angle, so that the standing state of the old is boosted, and the standing action of the old with deteriorated leg strength after going to the toilet can be effectively assisted.

Folding function:

after the old people stand up, the linear motor 11 retracts to enable the X-shaped folding frame 30 to drive the sliding block 19 to move forwards, the sliding block 19 moves forwards while the sliding rail 27 descends, the sliding block 19 is connected with the connecting plate 13, the linkage effect is utilized in the forward movement process, the ratchet bar structure shell 29 is driven to move together, the ratchet bar structure shell 29 moves to drive the mechanical pressure sensing mechanism 2011 to move, the motion of the mechanical pressure sensing mechanism 2011 is combined with the motion shown in the attached drawings 3-6, (g) a motion step seven of the mechanical pressure sensing mechanism 2011, the step seven mechanical pressure sensing mechanism 2011 moves leftwards integrally while the linear motion of the rack 219 drives the gear 211 and the rotary motion of the hinge four-bar mechanism 68, the seat plate 61 retracts in the rotation process of the hinge four-bar mechanism 68, the linear motor 11 is started while the steering engine 118 operates simultaneously, and the steering engine 118 is controlled by the program, when the backrest 41 is folded, the armrests are folded at the same time, and when the slide rail 27 descends to the limiting support mechanism 16 in the process of withdrawing the linear motor 11, the linear motor 11 effectively absorbs shock and stops moving, and the movement is in an intelligent old-people-helping toilet wheelchair folding state.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A foldable old people toilet assisting device comprises a supporting base plate (15), a pedal plate (62), armrests (5), a backrest (41), a seat plate (61) and walking wheels; the lower extreme of supporting baseplate (15) is equipped with the walking wheel, and the front end of supporting baseplate (15) is fixed with running-board (62), its characterized in that: the toilet device further comprises a sliding rail (27), a backrest driving system mechanism (2010), a mechanical pressure sensing mechanism (2011) and a folding mechanism; the upper end of the supporting bottom plate (15) is connected with a sliding rail (27) in a folding mode through a folding mechanism, the sliding rail (27) is connected with a seat plate (61) through a mechanical pressure sensing mechanism (2011), the seat plate (61) is connected with a backrest (41) through a backrest driving system mechanism (2010), and the backrest (41) and the seat plate (61) are connected with the armrests (5).

2. A collapsible aging toilet device as claimed in claim 1, wherein: the folding mechanism comprises two folding parts which are arranged at the left end and the right end of a supporting bottom plate (15) in parallel, and each folding part comprises a travel limit switch (10), a linear motor (11), a connecting plate (13), a shell (29) with a ratchet structure and an X-shaped folding frame (30); the linear motor (11) is horizontally fixed at the front end of the supporting base plate (15), the movable end of the linear motor (11) is matched with the travel limit switch (10), the linear motor (11) is connected with one end of the lower end of the vertically arranged X-shaped folding frame (30), the other end of the lower end of the X-shaped folding frame (30) is connected with the supporting base plate (15), one end of the upper end of the X-shaped folding frame (30) is connected with the sliding rail (27) in a sliding mode through a sliding block (19), the sliding block (19) is fixedly connected with the ratchet strip structure shell (29), and the other end of the upper end of the X-shaped folding frame (30) is connected with the sliding rail (27).

3. A collapsible aging toilet device as claimed in claim 2, wherein: the backrest driving system mechanism (2010) comprises a middle support (39), a gear (211), a rack (219), an upper ratchet bar (236), a lower ratchet bar (256), a four-bar hinge mechanism (68), a fixed guide (204), a support frame (238), a return pin (240), the lower ratchet bar (256) and a rotating shaft (291); the inner part of the shell (29) of the ratchet structure is fixedly connected with a support frame (238), a lower ratchet (256) which is horizontally arranged and can move up and down is arranged in the support frame (238), the lower ratchet (256) is meshed with an upper ratchet (236) and is matched and connected with the upper ratchet through a fixed guide piece (204), the upper ratchet (236) is slidably connected with the support frame (238), the upper ratchet (236) is fixedly connected with a rack (219), the rack (219) is meshed and connected with a vertically arranged gear (211), the gear (211) is fixedly sleeved on the outer side of one end of a rotating shaft (291), the end face of the gear is fixedly connected with a hinge four-bar mechanism (68), the other end of the rotating shaft (291) is rotatably connected with an intermediate support (39), the intermediate support (39) is fixed at the upper end of a sliding rail (27), and the outer side of the support frame (238) is elastically connected with a return pin (240), the return pin (240) is connected with the upper ratchet strip (236).

4. A collapsible aging toilet device as claimed in claim 1 or 3, wherein: the mechanical pressure-sensitive mechanism (2011) comprises a seat back cover (36), a movable shaft (113) and a steering engine (118); the seat plate (61) is connected with the hinge four-bar mechanism (68), the rear end of the seat plate is provided with a seat rear cover (36), a steering engine (118) is arranged in the seat rear cover (36), the steering engine (118) is horizontally arranged and is fixedly connected with a movable shaft (113), and the movable shaft (113) is fixedly connected with a backrest (41).