Combined device for old people

Abstract

The utility model provides an old-age nursing combined device which comprises a wheelchair body, an active moving device which is detachably fixed on the back of the wheelchair body and comprises a machine body and at least one driving wheel which is rotatably connected to the bottom of the machine body; the number of the universal wheels is at least two, and the universal wheels are rotationally connected to the bottom of the machine body; the driving part is arranged in the machine body and used for driving the driving wheel to rotate and driving the machine body to move on the ground; the machine body is provided with an electric connection structure used for the wheelchair body to control the driving piece to drive the wheelchair body to move. According to the technical scheme, a combined structure is provided, the active power piece is detachably connected with the wheelchair body, a user can reasonably assemble and disassemble the active moving device according to the use scene, the user can enjoy the active moving ability of the active moving device to the wheelchair body, the active moving device can be disassembled, and the wheelchair body can be conveniently assembled and disassembled. And the wheelchair body is light.

Description

Technical Field

[0001] This invention generally relates to the field of transportation vehicles, and specifically to a combined elderly care device. Background Technology

[0002] A wheelchair is a tool that provides mobility assistance to people with mobility impairments.

[0003] Wheelchairs include manual wheelchairs and electric wheelchairs. Manual wheelchairs are propelled by the user himself or with the assistance of others. These wheelchairs are usually lightweight and suitable for use in smaller spaces.

[0004] Electric wheelchairs are powered by electricity, making them easier and less strenuous to operate. Users can control the wheelchair's forward, backward, and steering movements using joysticks or buttons. Electric wheelchairs are suitable for people with limited physical strength or those unable to manually push a wheelchair.

[0005] However, when an electric wheelchair is out of power, the weight of its power unit can create resistance to the user's manual movement. Summary of the Invention

[0006] In view of the problems existing in the prior art, the present invention provides a combined elderly care device, comprising: a wheelchair body; an active mobility device detachably fixed to the back of the wheelchair body and including a main body; at least one drive wheel rotatably connected to the bottom of the main body; at least two casters rotatably connected to the bottom of the main body; a drive unit disposed inside the main body for driving the drive wheel to rotate and moving the main body on the ground; and a battery disposed inside the main body and electrically connected to the drive unit for providing power to the drive unit. By having the above technical features, a combined structure is provided, detachably connecting the active power unit to the wheelchair body. Users can reasonably install and remove the active mobility device according to the usage scenario, enjoying both the active mobility device's added active mobility capability to the wheelchair body and the ability to remove the active mobility device to enjoy the lightweight wheelchair body.

[0007] In some embodiments, a plug is provided on the back of the wheelchair body, and a socket is provided on one side of the body to mate with and accommodate the plug insertion. Thus, through the electrical connection of the plug and socket, the user can conveniently control the active mobility device via the wheelchair body.

[0008] In some embodiments, a fixing component is provided between the wheelchair body and the main body to guide and securely connect the plug and the socket. A positioning hole is provided on the side of the main body where the socket is located. The fixing component includes a locking plate fixed to the back of the wheelchair body, which is bent to form a groove for insertion into the positioning hole; a locking tongue located on the inner wall of the main body where the positioning hole is located and sliding against the inner wall of the main body; and an elastic component fixed within the main body and driving the locking tongue to move towards the groove of the locking plate. Thus, as the locking plate and the positioning hole are inserted into each other, the fixed position of the wheelchair body and the main body is restricted, improving the accuracy of the plug and socket connection. Furthermore, as the locking plate and the positioning hole are inserted into each other, the locking tongue slides, and the elastic component deforms elastically. After the locking plate is fully inserted into the positioning hole, the locking tongue is engaged in the groove of the locking plate under the action of the elastic component, achieving mutual fixation between the wheelchair body and the main body, and ensuring the accuracy of the plug and socket electrical connection.

[0009] In some embodiments, the elastic component includes two guide rails located on the upper and lower sides of the locking tongue and fixedly connected to the body, with both ends of the locking tongue positioned within the guide rails; a limiting plate connected to the tail ends of the two guide rails; and at least one elastic element, one end of which is fixed to the side of the locking tongue away from the locking plate, and the other end of which is fixed to the side wall of the limiting plate. Thus, guided by the two guide rails, the sliding direction of the locking tongue is restricted, ensuring the stability of the locking tongue and locking plate engagement when the wheelchair body and the body are interlocked. Furthermore, all elastic components are exposed within the internal environment of the body, facilitating future inspection and maintenance.

[0010] In some embodiments, the back of the wheelchair body is provided with a separation assembly for separating the wheelchair body from the mobility device. A separation hole is provided on the side wall of the body with a positioning hole, and the separation hole is located below the positioning hole. The first body also has a first recessed hole in the shape of a strip that communicates with the separation hole. The separation assembly includes a rotating shaft, one end of which is connected to the back of the wheelchair body and rotatably connected to the wheelchair body with the central axis of the rotating shaft as the axis. A drive plate is fixed on one side of the outer peripheral surface of the rotating shaft and is used to insert into the first recessed hole. A first drive member is fixed inside the wheelchair body and is used to drive the rotating shaft to rotate around the central axis of the rotating shaft. When the rotating shaft rotates, the drive plate drives the locking tongue to move in the direction of the elastic member and disengages the locking tongue from the groove of the locking plate. When the locking plate disengages from the locking tongue, a second recessed hole communicating with the separation hole is provided at the position corresponding to the position of the drive plate on the body. The second recessed hole is used to accommodate the drive plate and disengage the drive plate from the side wall of the body. Thus, when the locking plate and the positioning hole are inserted into each other, the rotating shaft is inserted into the separation hole, and the corresponding drive plate is inserted into the corresponding first clearance hole. If the wheelchair body is separated from the machine body, the user can drive the rotating shaft to rotate through the first drive component, so that the drive component moves the locking tongue to slide under the guidance of the two guide rails and makes the locking tongue disengage from the groove of the locking plate. At this time, the wheelchair body can be manually moved so that the rotating shaft disengages from the separation hole, and the drive plate exits from the position of the second clearance hole. At the same time, the locking plate exits from the positioning hole, realizing the mutual separation of the wheelchair body and the machine body.

[0011] In some embodiments, a placement basket is also included, which is detachably connected to the side of the machine body away from the wheelchair body. Thus, the user can make various combinations according to the usage environment and needs; the placement basket can be combined with the active mobility device to facilitate the carrying of heavy goods; or the wheelchair body, active mobility device, and placement basket can be combined to adapt to different usage environments.

[0012] In some embodiments, a fixing mechanism for mounting and dismounting a basket is provided on the side of the machine body away from the wheelchair body; the fixing mechanism includes at least two limiting rods, whose axes are perpendicular to the connecting plane of the machine body and are slidably connected to the side wall of the machine body along their own axial direction; a driving assembly, corresponding one-to-one with the number of limiting rods, is fixed in the machine body to drive the limiting rods to slide along their axial direction to the side wall of the machine body; the limiting rod includes a sliding section and a locking section arranged coaxially; a second driving member is provided inside the sliding section to drive the locking section to rotate, the output shaft of the second driving member is parallel to the axis of the limiting rod and offset from the axis of the limiting rod, and the locking section is fixedly connected to the output shaft of the second driving member; a plurality of limiting holes for accommodating the insertion of the limiting rods are opened on one side of the limiting basket. Therefore, the limiting rod can be extended and retracted on the side wall of the machine body under the control of the drive component, thereby allowing the external placement basket to be installed and removed. After the limiting rod extends out of the side wall of the machine body, it can be inserted into the limiting insertion hole of the anti-framing frame. The second drive component controls the locking section at the end of the limiting rod to rotate, so that the locking section protrudes from the edge of the limiting rod. Under the drive of the drive component, the limiting rod slides towards the inside of the machine body, so that the locking section is locked on the edge of the placement basket, realizing the locking and fixing of the machine body and the placement basket. The limiting rod only moves to the outside of the machine body when it is in the fixed state, which not only improves the space utilization rate, but also ensures the fixing effect with the installation frame.

[0013] In some embodiments, the drive assembly includes a rack fixed to the periphery of the sliding section along its length; a drive motor fixed within the housing; and a gear coaxially connected to the output shaft of the drive motor and meshing with the rack. Thus, the drive motor drives the gear to rotate, and through the meshing of the gear and rack, the drive motor can control the displacement and sliding of the limit rod on the housing. Since all components are located within the housing, contact with the external environment is reduced, ensuring the effectiveness of the component's operation.

[0014] In some embodiments, the end of the locking segment is a smooth arc surface. This allows the limiting rod to act as a guide component when it is inserted into the limiting hole of the placement basket, improving insertion accuracy.

[0015] It should be understood that the description in the Summary of the Invention is not intended to limit the key or essential features of the embodiments of this disclosure, nor is it intended to restrict the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of an elderly care combination device provided by an embodiment of the present invention is shown;

[0017] Figure 2A schematic diagram of the active movement device in an embodiment of the present invention is shown.

[0018] Figure 3 A schematic diagram showing the connection state between the active mobility device and the wheelchair body in an embodiment of the present invention is provided.

[0019] Figure 4 It shows Figure 3 Enlarged view of detail A in the middle;

[0020] Figure 5 A schematic diagram showing the wheelchair body and the main body in an unlocked state in an elderly care combination device provided by an embodiment of the present invention is shown;

[0021] Figure 6 A schematic diagram of the connection structure between the main body and the placement basket in an embodiment of the present invention is shown.

[0022] Figure 7 An exploded view of the internal structure of the limiting rod in an elderly care combination device provided by an embodiment of the present invention is shown;

[0023] Figure 8 The diagram shows a fixed state of the main body and the placement basket in an elderly care combination device provided by an embodiment of the present invention.

[0024] Symbol Explanation

[0025] 1. Wheelchair body; 11. Locking plate; 12. Plug; 13. Rotating shaft; 14. Drive plate; 2. Active moving device; 21. Body; 211. Positioning hole; 22. Drive wheel; 23. Universal wheel; 24. Locking tongue; 25. Socket; 26. Separation hole; 27. First clearance hole; 28. Second clearance hole; 3. Placement basket; 31. Limiting insertion hole; 4. Elastic component; 41. Guide rail; 42. Limiting plate; 43. Elastic component; 5. Fixing mechanism; 51. Limiting rod; 511. Sliding section; 512. Locking section; 6. Drive component; 61. Drive motor; 62. Gear; 63. Rack; 7. Second drive component. Detailed Implementation

[0026] The preferred embodiments (or implementation methods) of the present invention will now be described in detail with reference to the accompanying drawings.

[0027] This invention provides a combined elderly care device, which includes a wheelchair body 1, an active mobility device 2, and a storage basket 3. The device offers multiple combination options depending on the usage scenario. The active mobility device 2 can be used independently or combined with the wheelchair body 1 to enable the wheelchair body 1 to operate electrically. Alternatively, the wheelchair body 1, the active mobility device 2, and the storage basket 3 can be combined to enable the wheelchair body 1 to operate electrically while also providing storage space to adapt to different usage scenarios for users.

[0028] The following is for reference. Figures 1-8 This describes a novel combined elderly care device.

[0029] Figure 1 A schematic diagram of the overall structure of a combined elderly care device according to an embodiment of the present invention is shown. (Reference) Figure 1 As shown, this embodiment provides a combined elderly care device including a wheelchair body 1, an active mobility device 2, and a storage basket 3 that can be combined with each other. The active mobility device 2 can operate independently, performing tasks such as independent charging and docking; it can also be used in combination with the wheelchair body 1, enabling the wheelchair to be powered and thus electric; or the active mobility device 2, wheelchair body 1, and storage basket 3 can be combined to provide independent storage space while achieving wheelchair electrification; and various combinations are available to adapt to different usage scenarios.

[0030] Figure 2 A schematic diagram of the active mobility device 2 in an embodiment of this novel elderly care device is shown. (Reference) Figure 2 As shown, the active moving device 2 includes a body 21. The body 21 can be of a regular shape to reduce the overall space occupied by the active moving device 2, or it can be adapted to the shape of the assembled components to make the assembled device more integrated and the connection more stable. A drive wheel 22 and two casters 23 are provided in the middle area of ​​the bottom of the body 21. The casters 23 are symmetrically arranged on both sides of the drive wheel 22, forming a stable triangular connection with the drive wheel 22. The body 21 also contains a drive component that drives the drive wheel 22 to rotate forward or backward, and a battery electrically connected to the drive component to provide power to the drive component. By remotely controlling the drive component, the body 21 can be moved, facilitating its active movement to the charging area for charging operations, and also allowing it to actively move to the area surrounding the assembled components for connection when needed. The drive component is generally a motor, or a combination of a motor and gear transmission, or a combination of a motor and chain transmission, which is not shown in the figure.

[0031] Figure 3 The diagram shows the connection state between the active mobility device 2 and the wheelchair body 1 in an elderly care combination device provided by an embodiment of the present invention. Figure 4 It shows Figure 3 A magnified view of detail A in the middle. (Reference) Figure 3 and Figure 4 As shown, a locking plate 11 is fixed to the back of the wheelchair body 1. The locking plate 11 is bent to form a C-shaped groove. A positioning hole 211 for accommodating the locking plate 11 is opened on the side of the body 21 that mates with the wheelchair body 1. A locking tongue 24 for engaging with the locking plate 11 is provided inside the body 21 next to the positioning hole 211, and an elastic component 4 for driving the locking tongue 24 to move. When the locking plate 11 is inserted into the positioning hole 211 of the body 21, the wheelchair body 1 is positioned and locked to the body 21 at the same time, so that the movement of the active moving device 2 can simultaneously drive the displacement of the wheelchair body 1.

[0032] The aforementioned elastic component 4 includes two guide rails 41 horizontally fixed to the inner wall of the body 21. The upper and lower ends of the locking tongue 24 are located within the guide rails 41, thereby enabling the locking tongue 24 to slide within the guide rails 41. The ends of the two guide rails 41 are connected by a limiting plate 42, which restricts the locking tongue 24 from disengaging from the guide rails 41. The limiting plate 42 is provided with multiple elastic elements 43 on the side facing the locking tongue 24. The elastic elements 43 can be springs. One end of the spring is fixed to the limiting plate 42, and the other end of the spring is fixed to the locking tongue 24. The area where the locking tongue 24 contacts the locking plate 11 is provided with a chamfer, so that when the locking plate 11 and the positioning hole 211 are inserted into each other, the locking tongue 24 is driven to slide under the limiting of the guide rails 41 and is locked in the groove of the locking plate 11 under the elastic action of the elastic elements 43.

[0033] refer to Figure 2 As shown, a socket 25 is also provided on the side of the body 21 facing the wheelchair body 1. The socket 25 is connected to the control chip of the drive unit inside the body 21. On the back of the wheelchair body 1, in the area corresponding to the socket 25, there is a plug 12 for electrical connection with the socket 25. By the fit and locking of the wheelchair body 1 and the body 21, the plug 12 and the socket 25 are mutually connected, allowing the user to directly control the operation of the drive unit through the controller on the wheelchair body 1 that is electrically connected to the plug 12.

[0034] Figure 5 This diagram illustrates the unlocked state of the wheelchair body 1 and the main body 21 in an elderly care combination device according to an embodiment of the present invention. (See reference) Figure 5As shown, a horizontal rotating shaft 13 is provided below the locking plate 11. The rotating shaft 13 is connected to the back of the wheelchair body 1 via a first driving component, which can be a motor. The motor body is fixed inside the back panel of the wheelchair body, and the output shaft of the motor is coaxially fixed to the rotating shaft 13. A driving plate 14 is fixed to the periphery of the rotating shaft 13. The opening and closing of the motor controls the rotating shaft 13 and drives the driving plate 14 to rotate. The body 21 has a separation hole 26 below the positioning hole 211 to accommodate the insertion of the rotating shaft 13. A first clearance hole 27 to accommodate the driving plate 14 is provided on the periphery of the separation hole 26. When the locking plate 11 is inserted into the positioning hole 211 of the body 21, the rotating shaft 13 and the driving plate 14 are simultaneously inserted into the separation hole 26 and the first clearance hole 27 of the body 21. To separate the active moving device 2 from the wheelchair body 1, the user can control the first driving component to drive the rotating shaft 13 to rotate, which in turn drives the driving plate 14 to rotate and press against the side of the locking tongue 24, causing the locking tongue 24 to move towards the limiting plate 42, so that the end of the locking tongue 24 is disengaged from the groove of the locking plate 11. At this time, the side wall of the machine body 21 and the area corresponding to the driving plate 14 are provided with a second clearance hole 28 that communicates with the separation hole 26, so that the driving plate 14 can be disengaged when the wheelchair body 1 is separated from the machine body 21.

[0035] Figure 6 A schematic diagram of the connection structure between the body 21 and the placement basket 3 in an embodiment of the present invention is shown. Figure 7 An exploded view of the internal structure of the limiting rod 51 in an elderly care combination device according to an embodiment of the present invention is shown. (Reference) Figure 6 and Figure 7 As shown, a fixing mechanism 5 for connecting and fixing to the placement basket 3 is provided on the side of the body 21 away from the wheelchair body 1. The fixing mechanism 5 includes a limiting rod 51 horizontally arranged on the side of the body 21 away from the wheelchair body 1. At least two limiting rods 51 are provided. The limiting rods 51 can slide along their own axial direction to the side wall of the body 21. A driving assembly 6 for actively sliding the limiting rod 51 is also provided between each limiting rod 51 and the body 21. The limiting rod 51 includes a sliding section 511 that slides to the side wall of the body 21, and a locking section 512 provided at the end of the sliding section 511.

[0036] The aforementioned drive assembly 6 includes a drive motor 61 fixed to the side wall of the body 21, and a gear 62 coaxially fixed to the output shaft of the drive motor 61. The sliding section 511 has a groove along its length, and a rack 63 that meshes with the gear 62 is fixed in the groove. Through the meshing of the gear 62 and the rack 63, the limiting rod 51 is driven to slide and connect with the side wall of the body 21 along its axial direction.

[0037] A second driving component 7, which can be a motor, is installed inside the sliding section 511. The motor body is fixed inside the sliding section 511, and its output shaft is parallel to the axis of the sliding section 511 and offset from the center of the sliding section 511. When the motor output shaft is fixed to the locking section 512, the sliding section 511 and the locking section 512 are coaxially positioned. After the second driving component 7 is activated, it drives the locking section 512 to rotate, causing a portion of the locking section 512 to protrude beyond the periphery of the sliding section 511, thereby limiting the connection area.

[0038] Figure 8 This diagram illustrates the fixed state of the body 21 and the placement basket in an embodiment of the present invention. When the body 21 and the placement basket 3 are connected, the second driving member 7 drives the gear 62 to rotate. Through the meshing of the gear 62 and the rack 63, the limiting rod 51 slides and protrudes outward from the body 21. Each area corresponding to the placement basket 3 and each limiting rod 51 has a limiting insertion hole 31. As the sliding section 511 of the limiting rod 51 slides, the locking section 512 extends into the limiting insertion hole 31 of the placement basket 3. Since the end of the locking section 512 is a smooth arc surface, it guides the edge of the limiting insertion hole 31 of the placement basket 3, simplifying the insertion process. When the locking section 512 is fully inserted into the placement basket 3, the second driving component 7 drives the locking section 512 to rotate, causing the locking section 512 to protrude from the outer contour of the sliding section 511. At this time, the drive motor 61 reverses, driving the sliding section 511 to slide inward toward the body 21, so that the locking section 512 fixes the side of the placement basket 3 to one side of the body 21, realizing the locking connection between the body 21 and the placement basket 3.

[0039] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A combined elderly care device, characterized in that, include: Wheelchair body (1), An active mobility device (2), which is detachably fixed to the back of the wheelchair body (1), and includes Body (21), At least one drive wheel (22) is provided and is rotatably connected to the bottom of the body (21); The machine body (21) includes at least two casters (23) that are rotatably connected to the bottom of the machine body (21); it also includes a drive unit that is located inside the machine body (21) and is used to drive the drive wheel (22) to rotate and move the machine body (21) on the ground. The battery is located inside the body (21) and is electrically connected to the drive unit to provide power to the drive unit.

2. The elderly care combination device according to claim 1, characterized in that, The back of the wheelchair body (1) is provided with a plug (12), and the side of the body (21) is provided with a socket (25) that cooperates with the plug (12) and accommodates the plug (12) to be inserted.

3. The elderly care combination device according to claim 2, characterized in that, A fixing component is provided between the wheelchair body (1) and the main body (21) to guide and securely connect the plug (12) and the socket (25); a positioning hole (211) is provided on the side of the main body (21) where the socket (25) is located; the fixing component includes Locking plate (11), which is fixed to the back of the wheelchair body (1), and is bent to form a groove for engaging with the positioning hole (211); The locking tongue (24) is located on the inner wall of the body (21) with a positioning hole (211) and slides against the inner wall of the body (21); The elastic component (4) is fixed inside the body (21) and drives the locking tongue (24) to move in the direction of the groove of the locking plate (11).

4. The elderly care combination device according to claim 3, characterized in that, The elastic component (4) includes Two guide rails (41) are provided and located on the upper and lower sides of the locking tongue (24) and are fixedly connected to the body (21). The two ends of the locking tongue (24) are located in the track of the guide rail (41). A limiting plate (42) is connected to the tail of the two guide rails (41); At least one elastic element (43) is provided, one end of which is fixed to the side of the latch (24) away from the lock plate (11), and the other end of which is fixed to the side wall of the limiting plate (42).

5. The elderly care combination device according to claim 4, characterized in that, The back of the wheelchair body (1) is provided with a separation component that allows the wheelchair body (1) to be separated from the mobile device. The side wall of the body (21) with a positioning hole (211) is provided with a separation hole (26). The separation hole (26) is located below the positioning hole (211). The body (21) is also provided with a first clearance hole (27) that is connected to the separation hole (26) and is strip-shaped. The separation component includes A rotating shaft (13) is connected at one end to the back of the wheelchair body (1) and rotates with the wheelchair body (1) with the central axis of the rotating shaft (13) as the axis. A drive plate (14) is fixed on one side of the outer circumferential surface of the rotating shaft (13) and is used to be inserted into the first clearance hole (27); The first driving component is fixed inside the wheelchair body (1) and is used to drive the rotating shaft (13) to rotate around the central axis of the rotating shaft (13). When the rotating shaft (13) rotates, the driving plate (14) drives the locking tongue (24) to move towards the elastic element (43) and causes the locking tongue (24) to disengage from the groove of the locking plate (11); When the locking plate (11) disengages from the locking tongue (24), a second clearance hole (28) is provided at the position corresponding to the position of the body (21) and the drive plate (14), which communicates with the separation hole (26). The second clearance hole (28) is used to accommodate the drive plate (14) so ​​that the drive plate (14) disengages from the side wall of the body (21).

6. The elderly care combination device according to claim 5, characterized in that, It also includes a placement basket (3), which is detachably connected to the side of the body (21) away from the wheelchair body (1).

7. The elderly care combination device according to claim 1, characterized in that, The body (21) is provided with a fixing mechanism (5) for mounting and dismounting the basket (3) on the side opposite to the wheelchair body (1); the fixing mechanism (5) includes Limiting rods (51) are provided in at least two, with their axes perpendicular to the connecting plane of the body (21) and slidingly connected to the side wall of the body (21) along their own axis direction; The number of drive components (6) corresponds one-to-one with the number of limit rods (51). They are fixed inside the body (21) and used to drive the limit rods (51) to slide and connect with the side wall of the body (21) along their axial direction. The limiting rod (51) includes a sliding section (511) and a locking section (512) arranged coaxially; the sliding section (511) is provided with a second driving member (7) for driving the locking section (512) to rotate. The output shaft of the second driving member (7) is parallel to the axis of the limiting rod (51) and is offset from the axis of the limiting rod (51). The locking section (512) is fixed to the output shaft of the second driving member (7). The limiting basket has multiple limiting holes (31) on one side to accommodate the insertion of the limiting rod (51).

8. The elderly care combination device according to claim 7, characterized in that, The driving component (6) includes A rack (63) is fixed to the periphery of the sliding section (511) along the length of the sliding section (511); A drive motor (61) is fixed inside the body (21); The gear (62) is coaxially fixed to the output shaft of the drive motor (61) and meshes with the rack (63).

9. A combined elderly care device according to claim 7, characterized in that, The end of the locking segment (512) is a smooth arc surface.

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