An anti-fall assistance device for the elderly during bathing

Abstract

The present invention discloses an anti-fall assistance device for the elderly during bathing, which includes an upper frame module and a lower frame module arranged oppositely up and down, and the bottom of the upper frame module is hinged to the top of the lower frame module. The double-height adjustment components meet the optimal height support for the arms of the elderly of different heights during anti-fall bathing and the optimal height support for the buttocks during bathing assistance; the surrounding arms in the surrounding anti-fall mechanism are designed with a multi-link mechanism based on the under-actuated principle, meeting the self-adaptive surrounding anti-fall of the elderly of different body types, and at the same time realizing self-adaptive anti-fall support in combination with the handrails; the inclination-adjustable slider of the support seat body allows the elderly to select the support angle of the concave seat surface according to their physical strength and different assistance requirements during bathing, so as to provide the best assistance experience for the elderly during bathing; the foldable portable frame mechanism can provide a more spacious bathing space, especially when the device is not in use for non-elderly bathing.

Description

Technical Field

[0001] The invention relates to the technical field of nursing equipment, and in particular to a bathing anti-fall assisting device for elderly people. Background Art

[0002] The World Health Organization report shows that more than 300,000 people die from falls every year worldwide, half of whom are over 60 years old. One of the highest accident rates among the elderly is falls. According to statistics from the World Health Organization, falls are the leading cause of casualties among people over 65 years old. For the elderly, the potential threat of falls is no less than that of heart disease and stroke. Falls may cause the elderly's health to deteriorate significantly, and may also lead to disability, mental and psychological deterioration, and even death, as well as bring huge medical expenses to the elderly and their families. In fact, the main place where the elderly fall is not in public places, but at home, especially in the bathroom. This is mainly because:

[0003] (1) Elderly people are prone to physical exhaustion due to taking too long a bath, and their joints are not flexible, which can lead to falls;

[0004] (2) When taking a bath, the increased amount of hot water and steam in the bathroom will cause the elderly’s cerebral blood vessels to dilate and blood flow to increase, leading to insufficient blood supply to the brain and fainting;

[0005] (3) Because the bathroom space is relatively small, the elderly are in a closed space when taking a bath. The increase in water vapor will reduce the oxygen in the bathroom, and the air circulation is also relatively poor, so the elderly will faint due to lack of oxygen.

[0006] According to the "2019-2025 China Population Aging Market Research and Development Trend Research Report" released by Zhiyan Consulting Network, with the initial formation of the elderly age structure, China has begun to enter an aging society. It is estimated that in 2020, the elderly population in my country will exceed 250 million, and the proportion of people over 60 years old in the total population will reach 17.17%. It is estimated that in 2025, the population over 60 years old will exceed 300 million, and China will become a super-aged country. However, according to the survey, there are currently no anti-fall and power-assisting devices for elderly people to bathe in the bathroom on the market. Therefore, in order to cope with the aging society that has arrived, the society urgently needs a bathing anti-fall power-assisting device suitable for the elderly. Summary of the invention

[0007] In view of this, the purpose of the present invention is to provide an anti-fall assist device for the elderly when bathing, which can improve the safety of the elderly when bathing and improve their bathing experience, while also addressing the problems of elderly people falling and getting injured due to problems such as slippery floors and lack of physical strength when bathing.

[0008] The present invention solves the above technical problems by the following technical means:

[0009] An anti-fall assist device for an elderly person bathing, comprising an upper frame module and a lower frame module arranged opposite to each other, wherein the bottom of the upper frame module and the top of the lower frame module are hingedly connected;

[0010] The upper frame module includes a first square mounting body and an embracing anti-fall mechanism arranged on the first mounting body, the embracing anti-fall mechanism includes a first height adjustment component and an embracing anti-fall component installed on the first height adjustment component, the embracing anti-fall component includes two symmetrically arranged embracing arms and an armrest connected to the embracing arms; the first height adjustment component is installed on the first mounting body, the embracing arm is connected to the first height adjustment component for vertical rotation, and a backrest pad is arranged between the bottom of the upper frame module and the two embracing arms;

[0011] The lower frame module comprises a second square mounting body and a power-assist mechanism arranged on the second mounting body, the power-assist mechanism comprises a second height adjustment component and a support seat body installed on the second height adjustment component, and the inclination angle of the support seat body is adjustable; the second height adjustment component is installed on the second mounting body;

[0012] A clearance groove matched with the support seat body is formed on the side wall of the first installation body.

[0013] Further, the first height adjustment assembly includes a base and a first screw rod and a second screw rod vertically and rotatably mounted on the base, the top of the first screw rod and the top of the second screw rod are connected through a first partition, the top of the first screw rod and the top of the second screw rod are both rotatably mounted in the first partition, the top of the first screw rod and the second screw rod are connected through a belt transmission assembly, and the outer cover of the belt transmission assembly is provided with an isolation cover;

[0014] The first screw rod and the second screw rod are both threadedly connected with a first seat nut for mounting the embracing arm;

[0015] A first stepper motor for driving the first screw rod to rotate is installed on the base.

[0016] Furthermore, the first screw rod and the second screw rod are both rotatably mounted on the base via a first bearing seat.

[0017] Further, the lower end of the second screw rod rotates and passes through the second partition plate;

[0018] A first limit switch with a contact facing downward is installed on the first partition plate, and a second limit switch with a contact facing upward is installed on the second partition plate.

[0019] Further, the belt transmission assembly includes a transmission belt and a first transmission wheel set and a second transmission wheel set that are symmetrically arranged;

[0020] The first transmission wheel group includes a first pulley, a second pulley and a first optical wheel, and the second transmission wheel group includes a third pulley, a fourth pulley and a second optical wheel; the first pulley is mounted on the top of the first screw rod, and the second pulley and the first optical wheel are rotatably mounted on the first partition near the first pulley; the third pulley is mounted on the top of the second screw rod, and the fourth pulley and the second optical wheel are rotatably mounted on the first partition near the third pulley;

[0021] The transmission belt is sleeved on the first pulley, the second pulley, the third pulley and the fourth pulley, and the outer side wall is in contact with the first optical wheel and the second optical wheel.

[0022] Further, the embracing arm comprises an arm body and a base, and the arm body is mounted on the first seat nut through the base;

[0023] The arm body comprises a straight rod with a groove, a long rod, a first curved link and a second curved link, one end of the straight rod with a groove and one end of the long rod are movably connected through a first short link, and the other end is rotatably connected to the other end of the long rod through a second short link, one end of the straight rod with a groove close to the second short link is fixedly connected to one end of the second curved link, one end of the long rod close to the second short link is fixedly connected to one end of the first curved link, and the other ends of the first curved link and the second curved link are rotatably connected through a third short link;

[0024] A sliding groove extending along the axial direction of the grooved straight rod is provided in the middle of the grooved straight rod;

[0025] One end of the first short connecting rod close to the long rod is rotatably connected to the first slender connecting rod, the other end of the first slender connecting rod is rotatably connected to the second slender connecting rod, and the other end of the second slender connecting rod is installed with a slider, and the slider is slidably installed in the slide groove and locked with the grooved straight rod through a bolt penetrated in the slider;

[0026] The grooved straight rod is installed with one end of the first short connecting rod connected to the base, and a horizontal U-shaped installation groove is provided on the base, and the bottom of the installation groove is sealed, and a mounting block is rotatably installed in the installation groove. The grooved straight rod is rotatably installed in the installation groove through the mounting block, and one side of the base is installed on the first seat nut through a bolt.

[0027] Further, the armrest includes a fourth short link, a third curved link, an arc link, a fifth short link and a third slender link;

[0028] One end of the third curved link is rotatably connected to the fourth short link, and the other end of the fourth short link is rotatably connected to an end of the first short link close to the grooved straight rod;

[0029] One end of the arc connecting rod is rotatably connected to the other end of the third curved connecting rod, and the other end is rotatably connected to one end of the grooved straight rod close to the second curved connecting rod;

[0030] One end of the fifth short connecting rod is rotatably connected to one end of the grooved straight rod close to the second curved connecting rod, and the other end is rotatably connected to one end of the long rod close to the first curved connecting rod;

[0031] One end of the third slender connecting rod is rotatably connected to the first short connecting rod, and the other end is rotatably connected to one end of the long rod close to the first curved connecting rod.

[0032] Furthermore, the second height adjustment assembly includes a vertically arranged third lead screw and a fourth lead screw. A second belt seat nut and a third belt seat nut are coaxially screwed on the third lead screw and the fourth lead screw respectively, and the third lead screw and the fourth lead screw are connected by a synchronous belt;

[0033] The bottom of the third lead screw is driven by a second stepping motor;

[0034] The support seat body is mounted on the second belt seat nut and the third belt seat nut on the third lead screw and the fourth lead screw.

[0035] Furthermore, the support seat body includes an inclination adjustment seat and a concave seat surface mounted on the inclination adjustment seat;

[0036] The inclination adjustment seat includes a housing body with an opening on one side, an inner box slidably inserted into the housing body, a driving unit for driving the inner box to move relative to the housing body, and two horizontally arranged fourth slender connecting rods and fifth slender connecting rods; the housing body is mounted on the second belt seat nut on the upper sections of the third lead screw and the fourth lead screw, and one ends of the fourth slender connecting rod and the fifth slender connecting rod are respectively rotatably mounted on the third belt seat nut on the lower sections of the third lead screw and the fourth lead screw; the driving unit includes a third stepping motor, a driving screw, gears located on both sides of the driving screw and meshing with the driving screw. The third stepping motor drives the two gears to rotate simultaneously through the driving screw, and racks meshing with the two gears respectively are arranged on the inner wall of the inner box, and the third stepping motor is fixed on the inner bottom surface of the housing body;

[0037] One side of the concave seat surface is rotatably connected to the inner box, and the other side is rotatably connected to the other ends of the fourth slender connecting rod and the fifth slender connecting rod through a rotating shaft.

[0038] Furthermore, both the third lead screw and the fourth lead screw are rotatably mounted on the second mounting body through second bearing seats.

[0039] Advantages of the present invention:

[0040] (1) The present invention designs a first height adjustment component and a second height adjustment component. The dual height adjustment components meet the optimal height support for the arms of the elderly with different heights during bathing to prevent falls, and the optimal height support for the buttocks during bathing assistance.

[0041] (2) The surrounding arms in the surrounding anti - fall mechanism of the present invention are designed with a multi - link mechanism based on the under - actuated principle, meeting the self - adaptive surrounding anti - fall for the elderly with different body fat and thinness. At the same time, combined with the armrest, it realizes the self - adaptive anti - fall support.

[0042] (3) The tilt - adjustable slider of the support seat body of the present invention allows the elderly to select the support angle of the concave seat surface according to their physical strength and different assistance requirements during bathing, so as to provide the best assistance experience for the elderly during bathing.

[0043] (4) The present invention adopts a foldable portable frame mechanism, which can provide a more spacious bathing space when the device is not in use, especially for non - elderly people taking a bath. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is the unfolded structural schematic diagram of an anti - fall assistance device for the elderly in the present invention;

[0045] Figure 2 is the structural schematic diagram of the first height adjustment component of an anti - fall assistance device for the elderly in the present invention;

[0046] Figure 3 is the structural schematic diagram of the surrounding arm of an anti - fall assistance device for the elderly in the present invention;

[0047] Figure 4 is the structural schematic diagram of the armrest of an anti - fall assistance device for the elderly in the present invention;

[0048] Figure 5 is the schematic diagram of the reference state of use of the surrounding anti - fall component of an anti - fall assistance device for the elderly in the present invention Figure 1 ;

[0049] Figure 6 is the schematic diagram of the reference state of use of the surrounding anti - fall component of an anti - fall assistance device for the elderly in the present invention Figure 2 ;

[0050] Figure 7 is the structural schematic diagram of the lower frame module of an anti - fall assistance device for the elderly in the present invention;

[0051] Figure 8 is the structural schematic diagram of the assistance mechanism of an anti - fall assistance device for the elderly in the present invention;

[0052] Figure 9yes Figure 8 A schematic diagram of the enlarged structure at A in the middle;

[0053] Figure 10 A reference schematic diagram of the folding process state of a bathing anti-fall assist device for elderly people according to the present invention;

[0054] Figure 11 A schematic diagram of the folding structure of a bathing anti-fall assist device for elderly people according to the present invention;

[0055] Among them, the upper frame module 1, the lower frame module 2, the first mounting body 3, the first height adjustment component 4, the embracing arm 5, the armrest 6, the backrest cushion 7, the second mounting body 8, the second height adjustment component 9, the support seat 10, the clearance groove 11, the base 12, the first screw rod 13, the second screw rod 14, the first partition 15, the isolation cover 16, the first seat nut 17, the first stepper motor 18, the first bearing seat 19, the second partition 20, the first limit switch 21, the second limit switch 22, the transmission belt 23, the first pulley 24, the second pulley 25, the mounting block 26, the first optical wheel 27, the third pulley 28, the fourth pulley 29, the second optical wheel 30, the base 31, the grooved straight rod 32, the long rod 33, the first curved connecting rod 34, second curved connecting rod 35, first short connecting rod 36, second short connecting rod 37, third short connecting rod 38, first slender connecting rod 39, second slender connecting rod 40, slider 41, fourth short connecting rod 42, third curved connecting rod 43, arc connecting rod 44, fifth short connecting rod 45, third slender connecting rod 46, third screw rod 47, fourth screw rod 48, synchronous belt 49, second stepping motor 50, concave seat surface 51, outer shell 52, inner box 53, fourth slender connecting rod 54, fifth slender connecting rod 55, third stepping motor 56, driving screw 57, gear 58, rack 59, rotating shaft 60, third limit switch 61, fourth limit switch 62, second belt seat nut 63, third belt seat nut 64, second bearing seat 65. DETAILED DESCRIPTION

[0056] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments:

[0057] like Figure 1 As shown, a bathing anti-fall assist device for the elderly of the present invention comprises an upper frame module 1 and a lower frame module 2 arranged opposite to each other, and the bottom of the upper frame module 1 and the top of the lower frame module 2 are hingedly connected by a hinge.

[0058] The upper frame module 1 includes a square-shaped first mounting body 3 and a surrounding anti-fall mechanism provided on the first mounting body 3. The surrounding anti-fall mechanism includes a first height adjustment component 4 and a surrounding anti-fall component mounted on the first height adjustment component 4. The surrounding anti-fall component includes two surrounding arms 5 symmetrically arranged left and right and a handrail 6 connected to the surrounding arms 5. The first height adjustment component 4 is mounted on the first mounting body 3 and is sealed by a waterproof soft curtain to prevent water ingress. The surrounding arms 5 are rotatably connected to the first height adjustment component 4 in the up and down direction. After use, they are lifted upwards so that the surrounding arms 5 can fit against the side wall of the first mounting body 3 for easy storage. A backrest pad 7 is provided between the bottom of the upper frame module 1 and the two surrounding arms 5. The backrest pad 7 is used to support the back of the elderly.

[0059] The lower frame module 2 includes a square-shaped second mounting body 8 and a boosting mechanism provided on the second mounting body 8. The boosting mechanism includes a second height adjustment component 9 and a support seat body 10 mounted on the second height adjustment component 9. The inclination angle of the support seat body 10 is adjustable. The second height adjustment component 9 is mounted on the second mounting body 8 and is sealed by a waterproof soft curtain to prevent water ingress. A relief groove 11 matching the support seat body 10 is formed on the side wall of the first mounting body 3. As Figure 10 and Figure 11 shown, when folding and storing this device, the relief groove 11 is used to accommodate the support seat body 10.

[0060] Specifically, as Figure 2 shown, the first height adjustment component 4 includes a base 12, a first lead screw 13 and a second lead screw 14 vertically and rotatably mounted on the base 12. The top of the first lead screw 13 and the top of the second lead screw 14 are connected by a first partition plate 15. The top of the first lead screw 13 and the top of the second lead screw 14 are both rotatably mounted inside the first partition plate 15. The top of the first lead screw 13 and the second lead screw 14 are driven by a belt drive assembly. An isolation cover 16 is provided outside the belt drive assembly. First belt seat nuts 17 for mounting the surrounding arms 5 are screwed onto both the first lead screw 13 and the second lead screw 14. A first stepping motor 18 for driving the first lead screw 13 to rotate is mounted on the base 12. The first stepping motor 18 drives the first lead screw 13 to rotate through a set of meshing bevel gears, thereby adjusting the height of the first belt seat nut 17 and further adjusting the height of the surrounding arms 5. Both the first lead screw 13 and the second lead screw 14 are rotatably mounted on the base 12 through first bearing seats 19.

[0061] Furthermore, the lower end of the second lead screw 14 rotatably passes through a second partition plate 20. A first limit switch 21 with a downward-facing contact is mounted on the first partition plate 15, and a second limit switch 22 with an upward-facing contact is mounted on the second partition plate 20. The first limit switch 21 and the second limit switch 22 are connected to a microcontroller. The microcontroller controls the rotation of the first stepping motor 18 through the electrical signals of the first limit switch 21 and the second limit switch 22, thereby restricting the stroke of the first belt seat nut 17.

[0062] Further, the belt drive assembly includes a transmission belt 23 and a symmetrically arranged first transmission wheel group and a second transmission wheel group; the first transmission wheel group includes a first pulley 24, a second pulley 25 and a first optical wheel 27, and the second transmission wheel group includes a third pulley 28, a fourth pulley 29 and a second optical wheel 30; the first pulley 24 is installed on the top of the first screw rod 13, and the second pulley 25 and the first optical wheel 27 are rotatably installed on the first partition plate 15 close to the side of the first pulley 24; the third pulley 28 is installed on the top of the second screw rod 14, and the fourth pulley 29 and the second optical wheel 30 are rotatably installed on the first partition plate 15 close to the side of the third pulley 28; the transmission belt 23 is sleeved on the first pulley 24, the second pulley 25, the third pulley 28 and the fourth pulley 29, and the outer side wall is in contact with the first optical wheel 27 and the second optical wheel 30.

[0063] Specifically, Figure 3 As shown, the embracing arm 5 includes an arm body and a base 31, and the arm body is installed on the first seat nut 17 through the base 31; the arm body includes a grooved straight rod 32, a long rod 33, a first curved link 34 and a second curved link 35, one end of the grooved straight rod 32 and one end of the long rod 33 are movably connected through a first short link 36, and the other end is rotatably connected to the other end of the long rod 33 through a second short link 37, one end of the grooved straight rod 32 close to the second short link 37 is fixedly connected to one end of the second curved link 35, one end of the long rod 33 close to the second short link 37 is fixedly connected to one end of the first curved link 34, and the other ends of the first curved link 34 and the second curved link 35 are rotatably connected through a third short link 38; the middle part of the grooved straight rod 32 is provided with a grooved straight rod along the grooved straight rod 32 axially extending slide groove; one end of the first short connecting rod 36 close to the long rod 33 is rotatably connected to the first slender connecting rod 39, the other end of the first slender connecting rod 39 is rotatably connected to the second slender connecting rod 40, and the other end of the second slender connecting rod 40 is installed with a slider 41, the slider 41 is slidably installed in the slide groove and locked with the grooved straight rod 32 by a bolt penetrated in the slider 41; the grooved straight rod 32 is installed with one end of the first short connecting rod 36 connected to the base 31, a horizontal U-shaped mounting groove is provided on the base 31, the bottom of the mounting groove is sealed, a mounting block 26 is rotatably installed in the mounting groove, the grooved straight rod 32 is rotatably installed in the mounting groove through the mounting block 26, and one side of the base 31 is installed on the first seat nut 17 by bolts.

[0064] Specifically, Figure 4As shown, the armrest 6 includes a fourth short link 42, a third curved link 43, an arc link 44, a fifth short link 45 and a third slender link 46; one end of the third curved link 43 is rotatably connected to the fourth short link 42, and the other end of the fourth short link 42 is rotatably connected to one end of the first short link 36 close to the grooved straight rod 32; one end of the arc link 44 is rotatably connected to the other end of the third curved link 43, and the other end is rotatably connected to one end of the grooved straight rod 32 close to the second curved link 35; one end of the fifth short link 45 is rotatably connected to one end of the grooved straight rod 32 close to the second curved link 35, and the other end is rotatably connected to one end of the long rod 33 close to the first curved link 34; one end of the third slender link 46 is rotatably connected to the first short link 36, and the other end is rotatably connected to one end of the long rod 33 close to the first curved link 34. The armrest 6 is installed on one side of the bottom of the embracing arm 5, and the armrest mechanism also rotates synchronously as the embracing arm 5 adaptively embraces the body of the elderly.

[0065] Therefore, the hugging anti-falling component is connected by a multi-link to form an under-actuated mechanism, that is, when the elderly bathe and walk into the hugging anti-falling component, Figure 5 and Figure 6 As shown, only the left-right symmetrical slider 41 needs to be pushed by hand to realize the synchronous rotation of multiple links in the hugging anti-fall assembly, and adaptive full hugging is realized according to the body shapes of fat and thin elderly people, thereby improving the anti-fall safety.

[0066] Specifically, Figures 7 - 8 As shown, the second height adjustment assembly 9 includes a third screw rod 47 and a fourth screw rod 48 which are vertically arranged. The third screw rod 47 and the fourth screw rod 48 are respectively coaxially threaded with two seat nuts, a second seat nut 1763 and a third seat nut 64. The third screw rod 47 and the fourth screw rod 48 are connected by a synchronous belt 49. The third screw rod 47 and the fourth screw rod 48 are both rotatably mounted on the second mounting body 8 through a second bearing seat 65.

[0067] The bottom of the third screw rod 47 is driven by the second stepping motor 50 , and the support seat body 10 is mounted on the second seat nut 63 and the third seat nut 64 on the third screw rod 47 and the fourth screw rod 48 .

[0068] The second stepper motor 50 drives the third screw rod 47 to rotate through the bevel gear set, thereby adjusting the positions of the second seat nut 63 and the third seat nut 64 on the third screw rod 47 and the fourth screw rod 48 , and adjusting the height of the support seat body 10 .

[0069] Inside the second installation body 8, a third limit switch 61 and a fourth limit switch 62 are arranged oppositely up and down along the extending direction of the third lead screw 47. The third limit switch 61 and the fourth limit switch 62 are connected to the microcontroller. The microcontroller controls the rotation of the second stepping motor 50 through the electrical signals of the third limit switch 61 and the fourth limit switch 62, thereby restricting the strokes of the second nut block 63 and the third nut block 64.

[0070] Specifically, as Figure 8 and Figure 9 shown, the support seat body 10 includes an inclination adjustment seat and a concave seat surface 51 installed on the inclination adjustment seat.

[0071] The inclination adjustment seat includes a housing 52 with an opening on one side, an inner box 53 slidably inserted into the housing 52, a driving unit for driving the inner box 53 to move relative to the housing 52, and two horizontally arranged fourth slender connecting rods 54 and fifth slender connecting rods 55; the housing 52 is installed on the second nut block 63 located at the upper section of the third lead screw 47 and the fourth lead screw 48, and one ends of the fourth slender connecting rod 54 and the fifth slender connecting rod 55 are respectively rotatably installed on the third nut block 64 located at the lower section of the third lead screw 47 and the fourth lead screw 48; the driving unit includes a third stepping motor 56, a driving screw 57, and gears 58 located on both sides of the driving screw 57 and meshing with the driving screw 57. The third stepping motor 56 drives the two gears 58 to rotate simultaneously through the driving screw 57. Rack teeth 59 meshing with the two gears 58 respectively are arranged on the inner wall of the inner box 53, and the third stepping motor 56 is fixed on the inner bottom surface of the housing 52; one side of the concave seat surface 51 is rotatably connected to the inner box 53, and the other side is rotatably connected to the other ends of the fourth slender connecting rod 54 and the fifth slender connecting rod 55 through a rotating shaft 60.

[0072] Therefore, the inclination adjustment seat is designed as a crank-slider mechanism. With the rotation of the third stepping motor 56, different inclination adjustments of the concave seat surface 51 can be achieved. When the elderly person lacks physical strength, the concave seat surface 51 can be laid flat for the elderly person to take a bath sitting. When the elderly person has a certain amount of physical strength but does not have the ability to stand completely for taking a bath, the concave seat surface 51 can be adjusted to a certain angle, thereby providing a certain supporting effect on the elderly person, and further meeting the different assisting experiences of the elderly person during bathing.

[0073] In summary, the elderly bathing anti-fall assisting device provided in this embodiment designs a first height adjustment component and a second height adjustment component, and through the double height adjustment components, the optimal height support for the arms of the elderly of different heights during bathing anti-fall and the optimal height support for the buttocks during bathing assistance are satisfied.

[0074] The surrounding arms in the surrounding anti-fall mechanism are designed as a multi-link mechanism based on the under-actuated principle, satisfying the adaptive surrounding anti-fall for the elderly of different body fat and thinness, and at the same time realizing the adaptive anti-fall support in combination with the armrest.

[0075] Moreover, for the tilt-adjustable slider of the support base body of the anti-fall assist device for the elderly in this embodiment, when the elderly take a bath, they can select the support angle of the concave seat surface according to their physical strength and different assist needs, so as to provide the best assist experience when the elderly take a bath. The foldable portable frame mechanism is adopted, which can provide a more spacious bathing space, especially for non-elderly people when the device is not in use.

[0076] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention. The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. An anti-fall assistance device for the elderly during bathing, characterized in that: It comprises an upper frame module (1) and a lower frame module (2) which are arranged opposite to each other in an upper and lower direction, wherein the bottom of the upper frame module (1) and the top of the lower frame module (2) are hingedly connected; The upper frame module (1) comprises a first square mounting body (3) and an embracing anti-fall mechanism arranged on the first mounting body (3); the embracing anti-fall mechanism comprises a first height adjustment component (4) and an embracing anti-fall component installed on the first height adjustment component (4); the embracing anti-fall component comprises two symmetrically arranged embracing arms (5) and an armrest (6) connected to the embracing arms (5); the first height adjustment component (4) is installed on the first mounting body (3); the embracing arms (5) are rotatably connected to the first height adjustment component (4) up and down; a backrest pad (7) is arranged between the bottom of the upper frame module (1) and the two embracing arms (5); the first height adjustment component (4) comprises a base (12) and a first screw rod (13) and a second screw rod (14) vertically and rotatably installed on the base (12); The lower frame module (2) comprises a second mounting body (8) in a square shape and a power-assisting mechanism arranged on the second mounting body (8), the power-assisting mechanism comprising a second height adjustment component (9) and a support base body (10) mounted on the second height adjustment component (9), the inclination angle of the support base body (10) being adjustable; the second height adjustment component (9) being mounted on the second mounting body (8); the second height adjustment component (9) comprising a third screw rod (47) and a fourth screw rod (48) arranged vertically; A clearance groove (11) matching with the support seat (10) is provided on the side wall of the first installation body (3); The embracing arm (5) comprises an arm body and a base (31), wherein the arm body comprises a grooved straight rod (32), a long rod (33), a first curved link (34) and a second curved link (35), wherein one end of the grooved straight rod (32) and one end of the long rod (33) are movably connected via a first short link (36), and the other end is rotatably connected to the other end of the long rod (33) via a second short link (37), an end of the grooved straight rod (32) close to the second short link (37) is fixedly connected to one end of the second curved link (35), an end of the long rod (33) close to the second short link (37) is fixedly connected to one end of the first curved link (34), and the other ends of the first curved link (34) and the second curved link (35) are rotatably connected via a third short link (38); A sliding groove extending along the axial direction of the grooved straight rod (32) is provided in the middle of the grooved straight rod (32); One end of the first short connecting rod (36) close to the long rod (33) is rotatably connected to a first slender connecting rod (39), the other end of the first slender connecting rod (39) is rotatably connected to a second slender connecting rod (40), and the other end of the second slender connecting rod (40) is installed with a slider (41), the slider (41) is slidably installed in the slide groove and is locked with the grooved straight rod (32) by a bolt penetrated by the slider (41); The grooved straight rod (32) is provided with one end of a first short connecting rod (36) connected to the base (31); a horizontal U-shaped installation groove is provided on the base (31); the bottom of the installation groove is sealed; a mounting block (26) is rotatably mounted in the installation groove; the grooved straight rod (32) is rotatably mounted in the installation groove via the mounting block (26).

2. The anti-fall assistance device for the elderly during bathing according to claim 1, wherein: The top of the first screw rod (13) and the top of the second screw rod (14) are connected via a first partition (15); the top of the first screw rod (13) and the top of the second screw rod (14) are both rotatably mounted in the first partition (15); the top of the first screw rod (13) and the second screw rod (14) are connected via a belt transmission assembly; an isolation cover (16) is provided on the outer cover of the belt transmission assembly; The first screw rod (13) and the second screw rod (14) are both threadedly connected with a first seat nut (17) for mounting the embracing arm (5); A first stepper motor (18) for driving the first screw rod (13) to rotate is mounted on the base (12).

3. The anti-fall assistance device for the elderly during bathing according to claim 2, characterized in that: The first screw rod (13) and the second screw rod (14) are both rotatably mounted on the base (12) via a first bearing seat (19).

4. The anti-fall assistance device for the elderly during bathing according to claim 2, wherein: The lower end of the second screw rod (14) rotates and passes through the second partition plate (20); A first limit switch (21) with a contact facing downward is installed on the first partition plate (15), and a second limit switch (22) with a contact facing upward is installed on the second partition plate (20).

5. The anti-fall assistance device for the elderly during bathing according to claim 2, characterized in that: The belt transmission assembly comprises a transmission belt (23) and a first transmission wheel set and a second transmission wheel set which are symmetrically arranged; The first transmission wheel group comprises a first belt pulley (24), a second belt pulley (25) and a first optical wheel (27), and the second transmission wheel group comprises a third belt pulley (28), a fourth belt pulley (29) and a second optical wheel (30); the first belt pulley (24) is mounted on the top of the first screw rod (13), and the second belt pulley (25) and the first optical wheel (27) are rotatably mounted on the first partition plate (15) on a side close to the first belt pulley (24); the third belt pulley (28) is mounted on the top of the second screw rod (14), and the fourth belt pulley (29) and the second optical wheel (30) are rotatably mounted on the first partition plate (15) on a side close to the third belt pulley (28); The transmission belt (23) is sleeved on the first pulley (24), the second pulley (25), the third pulley (28) and the fourth pulley (29), and the outer side wall is in contact with the first optical wheel (27) and the second optical wheel (30).

6. The anti-fall assistance device for the elderly during bathing according to claim 2, characterized in that: The embracing arm (5) comprises an arm body and a base (31); the arm body is mounted on the first seat nut (17) via the base (31); one side of the base (31) is mounted on the first seat nut (17) via a bolt.

7. The anti-fall assistance device for the elderly during bathing according to claim 6, wherein: The handrail (6) comprises a fourth short connecting rod (42), a third curved connecting rod (43), an arc connecting rod (44), a fifth short connecting rod (45) and a third slender connecting rod (46); One end of the third curved link (43) is rotatably connected to the fourth short link (42), and the other end of the fourth short link (42) is rotatably connected to one end of the first short link (36) close to the grooved straight rod (32); One end of the arc connecting rod (44) is rotatably connected to the other end of the third curved connecting rod (43), and the other end is rotatably connected to one end of the grooved straight rod (32) close to the second curved connecting rod (35); One end of the fifth short link (45) is rotatably connected to one end of the grooved straight rod (32) close to the second curved link (35), and the other end is rotatably connected to one end of the long rod (33) close to the first curved link (34); One end of the third slender connecting rod (46) is rotatably connected to the first short connecting rod (36), and the other end is rotatably connected to an end of the long rod (33) close to the first curved connecting rod (34).

8. The anti-fall assistance device for the elderly during bathing according to claim 1, characterized in that: The third screw rod (47) and the fourth screw rod (48) are coaxially threadedly connected with a second seat nut (63) and a third seat nut (64), respectively. The third screw rod (47) and the fourth screw rod (48) are connected by a synchronous belt (49). The bottom of the third screw rod (47) is driven by a second stepping motor (50); The support seat body (10) is mounted on a second seat nut (63) and a third seat nut (64) on the third screw rod (47) and the fourth screw rod (48).

9. The anti-fall assistance device for the elderly during bathing according to claim 8, characterized in that: The support seat body (10) comprises an inclination adjustment seat and a concave seat surface (51) mounted on the inclination adjustment seat; The inclination adjustment seat includes a housing (52) with an opening on one side, an inner box (53) slidably inserted into the housing (52), a driving unit for driving the inner box (53) to move relative to the housing (52), and two horizontally arranged fourth slender connecting rods (54) and fifth slender connecting rods (55); the housing (52) is mounted on a second pedestal nut (63) located on the upper sections of the third lead screw (47) and the fourth lead screw (48), and one ends of the fourth slender connecting rod (54) and the fifth slender connecting rod (55) are respectively rotatably mounted on a third pedestal nut (64) located on the lower sections of the third lead screw (47) and the fourth lead screw (48); the driving unit includes a third stepping motor (56), a driving screw (57), and gears (58) located on both sides of the driving screw (57) and meshing with the driving screw (57), the third stepping motor (56) drives the two gears (58) to rotate simultaneously through the driving screw (57), racks (59) meshing with the two gears (58) respectively are arranged on the inner wall of the inner box (53), and the third stepping motor (56) is fixed on the inner bottom surface of the housing (52). One side of the concave seat surface (51) is rotatably connected to the inner box (53), and the other side is rotatably connected to the other ends of the fourth slender connecting rod (54) and the fifth slender connecting rod (55) through a rotating shaft (60).

10. The anti-fall assist device for the elderly during bathing according to claim 9, characterized in that: Both the third lead screw (47) and the fourth lead screw (48) are rotatably mounted on the second mounting body (8) through second bearing seats (65).

Images