Assistance chair for assisting old people in getting up

Abstract

The utility model discloses a booster chair for assisting old people in getting up, which comprises two supporting legs, handrails are fixedly connected to the supporting legs, a chair plate is rotatably connected between the two supporting legs through a pin shaft, the booster chair further comprises a thrust component, the thrust component is arranged between the two supporting legs and used for pushing the chair plate to rotate, and the thrust component is used for pushing the chair plate to get up. The handrail is fixedly connected with a switch used for controlling starting of the thrust assembly, the handrail is sleeved with the protection assembly in a sliding mode, the protection assembly is used for protecting the switch, and the rotating shaft is rotationally connected between the two supporting legs. Through the matching of the structures, when the auxiliary getting-up is not needed, the switch can be protected, a user is prevented from touching the switch by mistake, convenience is provided for use, the inclination angle of the backrest can be adjusted according to the actual situation during use, and the user can conveniently lie on the seat to have a rest.

Description

Technical Field

[0001] The utility model relates to the technical field of assisting people to stand up, in particular to a power-assisting chair for assisting old people to stand up. Background Art

[0002] As they age, the elderly have increasingly difficulty moving around, especially in their legs and feet. Most elderly people like to sit in chairs, and due to their limited leg and foot mobility, they often have difficulty getting up.

[0003] For example, Chinese patent publication number CN212878474U discloses a device for assisting in getting up.

[0004] Since it is difficult to protect the switch when the auxiliary rising device is in use, it is easy to accidentally touch the switch, which brings inconvenience to use. It is also difficult to adjust the inclination angle of the backrest according to the actual situation during use, which reduces the comfort during use, so improvement is needed. Utility Model Content

[0005] The purpose of the utility model is to provide a power-assisted chair for assisting the elderly to get up. When the assistance for getting up is not needed, the switch can be protected to prevent the user from accidentally touching the switch, which provides convenience for use. The inclination angle of the backrest can also be adjusted according to the actual situation during use, which is convenient for the user to lie on the chair for rest, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a power-assisted chair for assisting the elderly to stand up, comprising two support legs, armrests are fixedly connected to the support legs, and a seat plate is rotatably connected between the two support legs through a pin shaft, and also includes:

[0007] A thrust assembly, the thrust assembly is arranged between the two supporting legs and is used to push the seat plate to rotate, and a switch for controlling the start of the thrust assembly is fixedly connected to the armrest;

[0008] A protection component, wherein the protection component is slidably sleeved on the handrail and is used to protect the switch;

[0009] A rotating shaft is rotatably connected between two supporting legs, a backrest is fixedly sleeved on the rotating shaft, and a positioning assembly for fixing the backrest is provided on the supporting legs.

[0010] Preferably, the thrust assembly includes a support plate fixedly connected between two support legs, a screw rod is rotatably connected between the two support plates, a forward and reverse motor for driving the screw rod to rotate is fixedly connected to the support plate, and the switch is electrically connected to the forward and reverse motor, a threaded sleeve is threadedly connected to the screw rod, a connecting rod is hinged on the threaded sleeve, and the top end of the connecting rod is hinged to the seat plate.

[0011] Preferably, the protective component includes a protective cover slidably mounted on the armrest, the inner wall of the protective cover is provided with placement grooves on both sides, a pressing component is provided in the placement groove, and the armrest is provided with a plurality of positioning grooves that are engaged and adapted with the pressing component on both sides.

[0012] Preferably, the pressing assembly comprises a spring fixedly connected in the placement groove, and the end of the spring is fixedly connected with a positioning bead that is engaged with and adapted to the positioning groove.

[0013] Preferably, the top of the protective sleeve is fixedly connected with a grip sleeve.

[0014] Preferably, two torsion springs are sleeved on the rotating shaft, and two ends of the torsion springs are respectively connected to the supporting legs and the backrest.

[0015] Preferably, the positioning assembly includes a positioning plate fixedly connected to the supporting leg, the positioning plate is provided with an arc-shaped through groove, the backrest is fixedly connected with a threaded column passing through the arc-shaped through groove and capable of sliding in the arc-shaped through groove, and the threaded column is threadedly connected with a nut that abuts the positioning plate.

[0016] Preferably, a lever is fixedly connected to the nut for facilitating the rotation of the nut.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. Through the arrangement of the forward and reverse motor, the support plate, the screw rod, the threaded sleeve and the connecting rod, the threaded sleeve moves on the screw rod, and under the action of the connecting rod, it can push the seat plate to rotate, push the user's buttocks forward, and play the effect of assisting in getting up.

[0019] Second, by configuring the protective cover, spring, positioning beads and positioning grooves, when the switch is not in use, the protective cover can protect the switch to prevent the user from accidentally touching the switch. When the forward and reverse motors need to be controlled by the control switch, the protective cover is pushed to slide on the surface of the armrest, so that the positioning beads can continuously change positions in several positioning grooves, and under the action of the spring elastic force, the positioning beads are pushed to be clamped in the positioning grooves, so that the protective cover can be in a static state without being affected by external forces, which is convenient for operating the switch.

[0020] 3. Through the arrangement of the rotating shaft, torsion spring, positioning plate, arc-shaped through groove, threaded column and nut, when the inclination angle of the backrest needs to be changed, the nut is first loosened to release the pressure of the nut on the positioning plate, and then the user pushes the backrest to tilt with the back, while the backrest tilts, the torsion spring accumulates restoring force, and when the backrest is tilted to an appropriate angle, the nut is tightened, and the nut is tightly pressed against the positioning plate to fix the threaded column and the backrest; when the backrest needs to be reset, the nut is loosened, and the backrest is pushed back to its initial state under the action of the restoring force of the torsion spring itself, and then the nut is tightened. The inclination angle of the backrest can be adjusted according to the actual situation during use, which is convenient for the user to lie on the seat for rest. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 For this utility model Figure 1 Schematic diagram of the structure from an upward perspective;

[0023] Figure 3 This is a schematic diagram of the structure of the protective cover of the utility model;

[0024] Figure 4 It is a cross-sectional view of the protective cover of the utility model;

[0025] Figure 5 It is an enlarged view of the structure at A of the utility model;

[0026] Figure 6 It is an enlarged view of the structure at B of the utility model.

[0027] In the figure: 1. support leg; 2. armrest; 3. seat plate; 4. switch; 5. rotating shaft; 6. backrest; 7. support plate; 8. screw; 9. forward and reverse motor; 10. threaded sleeve; 11. connecting rod; 12. protective sleeve; 13. positioning groove; 14. spring; 15. positioning bead; 16. grip sleeve; 17. torsion spring; 18. positioning plate; 19. arc-shaped through groove; 20. threaded column; 21. nut; 22. lever. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1 to 6The utility model provides a technical solution: a power-assisted chair for assisting the elderly to stand up. It includes two support legs 1, an armrest 2 is fixedly connected to the support legs 1, and a seat plate 3 is rotatably connected between the two support legs 1 through a pin shaft, and also includes:

[0030] A thrust assembly, which is arranged between the two supporting legs 1 and is used to push the seat plate 3 to rotate. A switch 4 for controlling the start of the thrust assembly is fixedly connected to the armrest 2;

[0031] A protection component, the protection component is slidably sleeved on the handrail 2, and the protection component is used to protect the switch 4;

[0032] A rotating shaft 5 is rotatably connected between the two supporting legs 1 . A backrest 6 is fixedly sleeved on the rotating shaft 5 . A positioning component for fixing the backrest 6 is provided on the supporting legs 1 .

[0033] The thrust assembly includes a support plate 7 fixedly connected between two support legs 1, a screw rod 8 is rotatably connected between the two support plates 7, a forward and reverse motor 9 for driving the screw rod 8 to rotate is fixedly connected to the support plate 7, and a switch 4 is electrically connected to the forward and reverse motor 9, a threaded sleeve 10 is threadedly connected to the screw rod 8, a connecting rod 11 is hinged on the threaded sleeve 10, and the top end of the connecting rod 11 is hinged to the seat plate 3.

[0034] When assistance in getting up is needed, the forward and reverse motor 9 is started by controlling the switch 4. The connection method and working principle between the switch 4 and the forward and reverse motor 9 belong to the prior art and will not be elaborated on. The forward and reverse motor 9 drives the screw 8 to rotate. Since the screw 8 is threadedly connected with the threaded sleeve 10, and the rotation of the threaded sleeve 10 is restricted by the connecting rod 11, the threaded sleeve 10 can move on the surface of the screw 8. Under the action of the connecting rod 11, the seat plate 3 can be pushed to rotate, thereby pushing the user's buttocks forward, thereby assisting in getting up.

[0035] The protective component includes a protective cover 12 slidably mounted on the armrest 2, and the left and right sides of the inner wall of the protective cover 12 are provided with placement grooves, and a pressing component is arranged in the placement groove. The left and right sides of the armrest 2 are provided with a plurality of positioning grooves 13 that are engaged and adapted with the pressing component.

[0036] The pressing assembly includes a spring 14 fixedly connected in the placement groove, and a positioning bead 15 that is clamped and adapted to the positioning groove 13 is fixedly connected to the end of the spring 14 .

[0037] When the switch 4 is not in use, the protective cover 12 can protect the switch 4 to prevent the user from accidentally touching the switch 4. When the forward and reverse motor 9 needs to be controlled by the control switch 4, the protective cover 12 is pushed to slide on the surface of the armrest 2, so that the positioning beads 15 can continuously change their positions in the plurality of positioning grooves 13, and under the action of the elastic force of the spring 14, the positioning beads 15 are pushed to be clamped in the positioning grooves 13, so that the protective cover 12 can be in a stationary state without being affected by external forces, which is convenient for operating the switch 4.

[0038] The top of the protective sleeve 12 is fixedly connected with a grip sleeve 16 , and the provision of the grip sleeve 16 facilitates the movement of the protective sleeve 12 .

[0039] Two torsion springs 17 are sleeved on the rotating shaft 5, and the two ends of the torsion spring 17 are respectively connected to the supporting leg 1 and the backrest 6. Through the setting of the torsion spring 17, when the positioning component releases the lock of the backrest 6, the torsion spring 17 can push the backrest 6 to return to the initial position under the action of its own restoring force.

[0040] The positioning assembly includes a positioning plate 18 fixedly connected to the support leg 1, with an arc-shaped through groove 19 formed on the positioning plate 18, a threaded column 20 penetrating the arc-shaped through groove 19 fixedly connected to the backrest 6 and capable of sliding in the arc-shaped through groove 19, and a nut 21 abutting against the positioning plate 18 is threadedly connected to the threaded column 20.

[0041] When it is necessary to change the inclination angle of the backrest 6, first loosen the nut 21 to release the pressure of the nut 21 on the positioning plate 18, and then the user pushes the backrest 6 to tilt with force from the back. While the backrest 6 is tilted, the torsion spring 17 accumulates a restoring force. When the backrest 6 is tilted to an appropriate angle, tighten the nut 21, and the nut 21 is tightly pressed against the positioning plate 18 to fix the threaded column 20 and the backrest 6. When it is necessary to reset the backrest 6, loosen the nut 21, and under the action of the restoring force of the torsion spring 17 itself, the backrest 6 is pushed to return to its initial state, and then tighten the nut 21. The inclination angle of the backrest 6 can be adjusted according to the actual situation during use, making it convenient for the user to lie on the seat and rest.

[0042] The nut 21 is fixedly connected with a lever 22 for facilitating the rotation of the nut 21 . The arrangement of the lever 22 makes it easier and more convenient to rotate the nut 21 .

[0043] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power-assisting chair for assisting the elderly to stand up, comprising two supporting legs, characterized in that: The support legs are fixedly connected with an armrest, and a seat plate is rotatably connected between the two support legs via a pin shaft. Other features include: A thrust assembly, the thrust assembly is arranged between the two supporting legs and is used to push the seat plate to rotate, and a switch for controlling the start of the thrust assembly is fixedly connected to the armrest; A protection component, wherein the protection component is slidably sleeved on the handrail and is used to protect the switch; A rotating shaft is rotatably connected between two supporting legs, a backrest is fixedly sleeved on the rotating shaft, and a positioning assembly for fixing the backrest is provided on the supporting legs.

2. The auxiliary chair for assisting the elderly to stand up according to claim 1, characterized in that: The thrust assembly includes a support plate fixedly connected between two support legs, a screw rod is rotatably connected between the two support plates, a forward and reverse motor for driving the screw rod to rotate is fixedly connected to the support plate, and a switch is electrically connected to the forward and reverse motor, a threaded sleeve is threadedly connected to the screw rod, a connecting rod is hinged on the threaded sleeve, and the top end of the connecting rod is hinged to the seat plate.

3. The auxiliary chair for assisting the elderly to stand up according to claim 1, characterized in that: The protective component includes a protective cover that is slidably mounted on the armrest, and placement grooves are provided on both sides of the inner wall of the protective cover. A pressing component is provided in the placement groove, and a plurality of positioning grooves that are engaged and adapted with the pressing component are provided on both sides of the armrest.

4. The auxiliary chair for assisting the elderly to stand up according to claim 3, characterized in that: The pressing assembly comprises a spring fixedly connected in the placement groove, and the end of the spring is fixedly connected with a positioning bead which is clamped and adapted to the positioning groove.

5. The auxiliary chair for assisting the elderly to stand up according to claim 4, characterized in that: The top of the protective sleeve is fixedly connected with a grip sleeve.

6. The auxiliary chair for assisting the elderly to stand up according to claim 1, characterized in that: Two torsion springs are sleeved on the rotating shaft, and two ends of the torsion springs are respectively connected to the supporting legs and the backrest.

7. The auxiliary chair for assisting the elderly to stand up according to claim 1, characterized in that: The positioning assembly includes a positioning plate fixedly connected to the supporting leg, the positioning plate is provided with an arc-shaped through slot, the backrest is fixedly connected with a threaded column that passes through the arc-shaped through slot and can slide in the arc-shaped through slot, and the threaded column is threadedly connected with a nut that abuts the positioning plate.

8. The auxiliary chair for assisting the elderly to stand up according to claim 7, characterized in that: The nut is fixedly connected with a lever for facilitating the rotation of the nut.

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