CN116269025A

CN116269025A - Movable backrest mechanism of lifting type sitting cabinet

Info

Publication number: CN116269025A
Application number: CN202310267893.5A
Authority: CN
Inventors: 夏建平; 胡玉彬
Original assignee: NANTONG INSTITUTE OF TECHNOLOGY
Current assignee: NANTONG INSTITUTE OF TECHNOLOGY
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-06-23

Abstract

The invention discloses a movable backrest mechanism of a lifting type sitting cabinet, which comprises a toilet seat which can be movably changed in height on the toilet sitting cabinet, wherein the toilet seat is divided into a low-position use state and a high-position sitting state according to the height; the toilet seat is provided with a movable tilting backrest piece which corresponds to the back of the human body; in the low-position use state, the backrest piece is folded flat to the toilet seat; in the high-position sitting state, the backrest part is tilted relative to the toilet seat to form a backrest structure of the human body. In the process of switching between the low-position using state and the high-position sitting state, the backrest part is gradually tilted or folded up gradually, so that the gravity center of a human body close to the backrest part correspondingly gradually changes. The invention can ensure that the gravity center of the user faces forward in the sitting process of the user, and effectively prevent the user from falling down backwards due to the loss of the gravity center caused by inertia in the rapid sitting process.

Description

Movable backrest mechanism of lifting type sitting cabinet

Technical Field

The invention relates to the technical field of bathrooms, in particular to a movable backrest mechanism of a lifting sitting cabinet.

Background

The toilets sold in the market at present are designed for normal people, and the old people with inconvenient actions are not considered. The traditional toilet seat cabinet is generally low in height, so that the old people can feel very hard in the process of semi-squatting to sitting down and sitting down to semi-squatting, and fall down easily. Through research, the height-unadjustable sitting cabinet is extremely easy to lose balance when the old sits down, is frightened when light, and falls down and fractures when heavy. In the case of investigation, hip fractures are widely considered in the medical community to be catastrophic for the elderly, as the elderly with toilet fractures are mostly hip fractures.

At present, toilet seat cabinets capable of being adjusted in a lifting mode are arranged on the market, but the lifting type toilet seat cabinets still lack the capability of assisting in adjusting the gravity center of the old, so that the old still can lose the gravity center due to inertia in the process of quickly sitting down, and the old falls backwards.

Disclosure of Invention

The invention aims to: in order to overcome the defects in the prior art, the invention provides the movable backrest mechanism of the lifting sitting cabinet, which can ensure that the gravity center of a user is forward in the sitting process of the user and effectively prevent the user from falling down backwards due to inertia in the rapid sitting process.

The technical scheme is as follows: in order to achieve the above purpose, the movable backrest mechanism of the lifting type sitting cabinet comprises a toilet seat which can be movably changed in height on the toilet sitting cabinet, wherein the toilet seat is divided into a low-position use state and a high-position sitting state according to the height; the toilet seat is provided with a movable tilting backrest piece which corresponds to the back of the human body; in the low-position use state, the backrest piece is folded flat to the toilet seat; in the high-position sitting state, the backrest part is tilted relative to the toilet seat to form a backrest structure of the human body.

Further, in the process of switching between the low-position using state and the high-position sitting state, the backrest piece is gradually tilted or gradually folded, so that the gravity center of a human body close to the backrest piece correspondingly gradually changes.

Further, the toilet seat comprises a seat ring part and a backrest piece, wherein the seat ring part can be lifted and lowered movably, and the upper contour surface of the seat ring part is a human buttock bearing surface; one end of the backrest piece is connected with the seat ring part, and the other end of the backrest piece can be turned over relative to the seat ring part; in the low-position use state, the backrest piece is turned over to be level with the upper contour surface of the seat ring part; in the high-position sitting state, the backrest piece is turned over to form a certain angle with the upper contour surface of the seat ring part; in the process of switching between the low-position using state and the high-position sitting state of the toilet seat, the backrest piece is gradually overturned.

Further, in the process of switching between the low-position using state and the high-position sitting state, the backrest part changes speed and turns over, and the turning speed of the backrest part is gradually increased and then gradually decreased; the center of gravity of the human body abutting against the backrest member varies adaptively with the overturning of the backrest member.

Further, in the process of switching between the low-position using state and the high-position sitting state of the toilet seat, the seat ring part is lifted in a variable speed manner, and the lifting speed of the seat ring part is gradually increased and then gradually reduced; the gravity center of the human body abutting against the backrest member is adapted to be changed in accordance with the lifting of the seat ring portion.

Further, a first variable-speed lifting unit is arranged on the bottom support of the seat ring portion, and a second variable-speed lifting unit is arranged on the end, away from the seat ring portion, of the backrest piece.

Further, the backrest piece and the seat part are arc-shaped parts forming a toilet seat; the first variable speed lifting unit and the second variable speed lifting unit are lifted in a differential mode, so that the backrest piece is gradually overturned.

Further, the seat ring part is in a ring shape, the seat ring part is provided with a containing groove, and the backrest piece and the second variable-speed lifting unit are correspondingly arranged in the containing groove; the lifting of the second variable-speed lifting unit independently drives the backrest to turn over.

Further, the backrest member and the seat ring portion are connected to each other by a hinge structure so that the backrest member can be turned over relative to the seat ring portion.

Further, one end of the backrest piece is connected with the seat ring part through a flexible connecting piece; and in the overturning process of the backrest, one end of the backrest is in a connection state with the seat ring part.

The beneficial effects are that: the invention relates to a movable backrest mechanism of a lifting type sitting cabinet, which has the following beneficial effects:

1) The toilet seat is in a low-position use state and a high-position sitting state, when the toilet seat is in the high-position sitting state, the backrest part is tilted to form a human backrest structure, the backrest structure can ensure that the gravity center of the old people is forward in the sitting process, and the old people can be effectively prevented from losing the gravity center due to inertia in the rapid sitting process and falling backwards;

2) In the process of switching between the low-position using state and the high-position sitting state, the backrest part is gradually tilted or gradually folded, so that the gravity center of the old is gradually changed, and the instability of the old caused by abrupt change of the gravity center is avoided;

3) In the process of switching between the low-position using state and the high-position sitting state, the toilet seat is variable in speed, the backrest piece is variable in speed and overturned, so that the toilet seat and the backrest piece move more slowly when starting and stopping just, the gravity center of the old is changed more stably in the using process, and the old is not easy to be unstable and break.

Drawings

FIG. 1 is a schematic view of a toilet seat in a low use state;

FIG. 2 is a schematic view of the toilet seat in a raised sitting position;

fig. 3 is a schematic view of a toilet seat with a receiving slot.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

The movable backrest mechanism of the lifting type sitting cabinet as shown in the accompanying drawings 1 to 3 comprises a toilet seat 1 which can be movably changed in height on the toilet sitting cabinet, wherein the toilet seat 1 is divided into a low-position use state and a high-position sitting state according to the height; in the low-level use state, namely when the toilet seat 1 is in the low-level use state, a user can sit on the toilet seat 1 to perform toilet; in the high standing state, that is, when the toilet seat 1 is in the high standing state, the user who needs to use the toilet can sit down on the toilet seat 1 conveniently, or the user who finishes the toilet can finish the standing up conveniently.

The toilet seat 1 is provided with a backrest part 2 which can be tilted movably, the backrest part 2 is arranged at the rear part of the toilet seat 1, and the backrest part 2 corresponds to the back of a human body. In the low use state, the backrest part 2 is folded flat onto the toilet seat 1 so that a user can sit on the toilet seat 1. In the high-position sitting state, the backrest part 2 is tilted relative to the toilet seat 1 to form a human backrest structure. The present invention aims at the old people who easily fall backwards in the sitting process on the toilet seat 1. In the invention, due to the backrest structure, the gravity center of the old people needing to sit down on the toilet seat 1 can be ensured to be forward in the sitting process, and the situation that the old people lose the gravity center and fall backwards due to inertia in the rapid sitting process is effectively prevented. In the process that the old man who finishes like the lavatory needs to get up, the back structure also can let the focus of old man forward more, and the old man accomplishes the action of getting up more easily.

In the process of switching the toilet seat 1 between the low-position use state and the high-position sitting state, the backrest 2 is gradually tilted or gradually folded so as to push or support the back of the human body, but not after the toilet seat 1 is switched to the high-position sitting state or the low-position use state, the backrest 2 is tilted or folded again, and the lifting process of the toilet seat 1 and the tilting or folding of the backrest 2 are synchronously performed. Thereby, the center of gravity of the human body abutting against the backrest 2 is correspondingly graded. In the process that the toilet seat 1 is lifted from the low-position use state to the high-position sitting state, the backrest member 2 is gradually lifted, so that proper pushing back acting force is provided for the old, and the old is assisted to rise. In the process that the toilet seat 1 is lowered from the high-position sitting state to the low-position using state, the backrest part 2 can support the back of the old, so that the gravity center of the old gradually moves backwards, and the old is assisted to be more smoothly gradually converted into the sitting posture from the semi-squatting posture.

The toilet seat 1 comprises a seat part 3 and a backrest piece 2, wherein the seat part 3 can be movably lifted, the upper contour surface of the seat part 3 is a human buttock bearing surface, and most buttocks of a user are positioned on the upper contour surface of the seat part 3 when the user uses a toilet. One end of the backrest 2 is connected with the seat part 3, and the other end of the backrest 2 can be turned over relative to the seat part 3. In the low-position use state, the backrest 2 is turned over to be level with the upper contour surface of the seat ring part 3, and the buttocks of the user can sit on the upper contour surface of the turned backrest 2 when the user uses the toilet. In the high sitting state, one end of the backrest 2 far away from the seat ring part 3 is turned upwards, so that the backrest 2 is turned to form a certain angle with the upper contour surface of the seat ring part 3, and the backrest 2 is far away from one end of the seat ring part 3, so that a human backrest structure is formed. In the process of switching the toilet seat 1 between the low-position use state and the high-position sitting state, the backrest 2 is gradually turned over so that the gravity center of the user is gradually changed.

In the process of switching between the low-position using state and the high-position sitting state of the toilet seat 1, the backrest 2 is turned over in a variable speed, and the turning speed of the backrest 2 is gradually increased and then gradually decreased; the center of gravity of the human body against the backrest 2 varies with the rollover adaptability of the backrest 2. The backrest 2 moves more slowly at the beginning of starting and about to stop, and accordingly, the user's center of gravity changes in the front-back direction by a smaller magnitude at the initial stage and the stop stage of turning over the backrest 2, and the user can be given time to adapt to the change in the front-back movement of the center of gravity. Correspondingly, in the process of switching the toilet seat 1 between the low-position use state and the high-position sitting state, the seat ring part 3 is lifted in a variable speed, and the lifting speed of the seat ring part 3 is gradually increased and then gradually reduced; the center of gravity of the human body abutting against the backrest 2 is adapted to be changed in accordance with the lifting of the seat portion 3. The race portion 3 moves more slowly at the start and stop, and thus the amplitude of the vertical change of the center of gravity of the user is smaller at the initial stage and stop stage of the lifting of the race portion 3, and the user can be given the time of the vertical movement change of the center of gravity. In conclusion, the change of the gravity center of the user can be more stable through the speed change overturning of the backrest 2 and the speed change lifting of the seat ring part 3, discomfort caused by the change of the gravity center is prevented from being brought to the user, and the aged is not easy to be unstable and break when the aged uses the backrest.

The bottom support of the seat ring part 3 is provided with a first variable-speed lifting unit 4, and the first variable-speed lifting unit 4 can drive the seat ring part 3 to lift and move. The end of the backrest 2 far away from the seat ring part 3 is supported and provided with a second variable-speed lifting unit 5, and the second variable-speed lifting unit 5 can drive the end of the backrest 2 far away from the seat ring part 3 to turn over.

One embodiment is shown in fig. 1, wherein the backrest 2 and the seat part 3 are arc-shaped parts forming the toilet seat 1, the seat part 3 is in a major arc shape, the backrest 2 is in a minor arc shape, and the seat part 3 and the backrest 2 are spliced into a ring shape. In the process that the first variable-speed lifting unit 4 drives the seat ring part 3 to lift, one end of the backrest 2 connected with the seat ring part 3 is lifted along with the seat ring part. When the backrest 2 is turned over, the backrest 2 can be turned over gradually by the differential lifting cooperation of the first variable-speed lifting unit 4 and the second variable-speed lifting unit 5.

One embodiment is shown in fig. 3, the seat part 3 is ring-shaped, the seat part 3 is provided with a containing groove 6, and the backrest member 2 and the second variable speed lifting unit 5 are correspondingly arranged in the containing groove 6. In the process that the first variable-speed lifting unit 4 drives the seat ring part 3 to lift, the backrest 2 and the second variable-speed lifting unit 5 which are positioned on the seat ring part 3 also lift. When the backrest 2 needs to be turned over, the backrest 2 can be independently driven to turn over by lifting the second variable-speed lifting unit 5.

One specific structure of the first variable speed lifting unit 4 and the second variable speed lifting unit 5 is shown in fig. 1 and (only the first variable speed lifting unit 4 and the second variable speed lifting unit 5 on the lower half of the toilet seat 1 are shown in the drawing), the other half is in mirror symmetry, the toilet seat 1 is in a low-position use state in fig. 1, and the toilet seat 1 is in a high-position sitting state in fig. 2; a backboard 7 is arranged below the toilet seat 1, the backboard 7 is fixedly connected with a toilet seat cabinet, a motor 8 which can rotate positively and negatively and can change speed is arranged on the backboard 7, the motor 8 drives a transmission block 10 to do lifting motion through a lifting screw rod 9, the transmission block 10 pushes a seat ring part 3 to do lifting motion through a lifting plate 11, and the seat ring part 3 is fixed at the upper end of the lifting plate 11; a front rack 12 is arranged on one side of the transmission block 10, the front rack 12 drives a rear rack 14 to move through a speed change gear set 13, the upper end of the rear rack 14 is rotationally connected with a link block 15, and the link block 15 is rotationally connected with the backrest 2; the rear rack 14 is driven by the gear change set 13 to move at a speed greater than that of the front rack 12, so that when the motor 8 drives the driving block 10 to move upwards, the upward moving speed of the backrest 2 is greater than that of the seat part 3, and thus the backrest 2 is gradually tilted relative to the seat part 3 in the upward moving process of the seat part 3, that is, the backrest 2 is gradually changed from the straight state shown in fig. 1 to the inclined state shown in fig. 2, and the inclined backrest 2 forms a human backrest structure. In addition, in order to change the speed of the backrest 2 and the seat part 3 during the toilet seat 1 between the low-level use state and the high-level sitting state, the seat part 3 is changed in speed and lifted, and accordingly, the rotational speed of the motor 8 which can be changed in speed is lower at the beginning of starting and to be stopped, that is, the rotational speed of the motor 8 correspondingly tends to gradually increase and then gradually decrease.

In one embodiment, one end of the backrest 2 and the seat part 3 are connected to each other by a hinge structure, so that the backrest 2 can be turned over relative to the seat part 3. The upper ends of the backrest 2 and the seat part 3 can be laid with toilet pads to cover the hinge structure, preventing the hinge structure from being clamped to the body of the user, and improving the user experience.

In one embodiment, one end of the backrest 2 is connected with the seat part 3 through a flexible connecting piece; during the overturning process of the backrest 2, one end of the backrest 2 is kept connected with the seat part 3. One of the flexible connection members may be a flexible rope, through which one end of the back member 2 is strung with the seat portion 3, thereby maintaining the one end of the back member 2 in a connected state with the seat portion 3 all the time.

The working mode of the invention is described with reference to fig. 1 and 2: when the old people need to go to the toilet, the toilet seat 1 is in a high-position sitting state, then the old people sit down against the backrest part 2, then the motor 8 rotates forward, the rotating speed of the motor 8 is gradually increased and then gradually reduced, the seat ring part 3 moves downwards in a variable speed manner, the backrest part 2 turns to be level with the seat ring part 3 in a variable speed manner, the gravity center of the old people moves downwards and backwards along with the movement, and the old people also change from a semi-squatting posture to a sitting posture; after the old man finishes the toilet, the motor 8 reverses, the rotating speed of the motor 8 is gradually increased and then gradually reduced, the seat ring part 3 moves upwards in a variable speed manner, the backrest part 2 turns over to form a certain angle with the seat ring part 3 in a variable speed manner, a backrest structure is formed, the gravity center of the old man moves upwards and forwards along with the backrest structure, the old man is converted into a semi-squatting posture from a sitting posture, and then the old man rises up; the backrest part 2 can apply proper thrust upwards to the old people to assist the old people to get up.

The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.

Claims

1. The utility model provides a movable backrest mechanism of lift type sitting cabinet which characterized in that: comprises a toilet seat (1) which can be movably changed in height on a toilet seat cabinet, wherein the toilet seat (1) is divided into a low-position use state and a high-position sitting state according to the height; a backrest piece (2) which can be tilted is arranged on the toilet seat (1), and the backrest piece (2) corresponds to the back of the human body; in a low-position use state, the backrest part (2) is folded up to the toilet seat (1); in a high-position sitting state, the backrest part (2) is tilted relative to the toilet seat (1) to form a human backrest structure.

2. The movable back mechanism of a lifting sitting cabinet of claim 1, wherein: in the process of switching between the low-position using state and the high-position sitting state of the toilet seat (1), the backrest (2) is gradually tilted or folded up gradually, so that the gravity center of a human body close to the backrest (2) correspondingly gradually changes.

3. The movable back mechanism of a lifting sitting cabinet of claim 2, wherein: the toilet seat (1) comprises a seat ring part (3) and a backrest piece (2), wherein the seat ring part (3) can be lifted and lowered movably, and the upper contour surface of the seat ring part (3) is a human buttock supporting surface; one end of the backrest (2) is connected with the seat ring part (3), and the other end of the backrest (2) can be turned over relative to the seat ring part (3);

in a low-level use state, the backrest (2) is turned over to be level with the upper contour surface of the seat ring part (3); in a high-position sitting state, the backrest (2) is turned over to form a certain angle with the upper contour surface of the seat ring part (3); the backrest part (2) is gradually turned over in the process of switching the toilet seat (1) between the low-position using state and the high-position sitting state.

4. A movable back mechanism of a lifting sitting cabinet according to claim 3, wherein: in the process of switching between the low-position using state and the high-position sitting state of the toilet seat (1), the backrest (2) is turned over in a variable speed, and the turning speed of the backrest (2) is gradually increased and then gradually reduced; the center of gravity of the human body abutting against the backrest (2) changes with the overturning adaptability of the backrest (2).

5. The movable back mechanism of a lifting sitting cabinet of claim 4, wherein: in the process of switching between the low-position using state and the high-position sitting state of the toilet seat (1), the seat ring part (3) is lifted in a variable speed, and the lifting speed of the seat ring part (3) is gradually increased and then gradually reduced; the gravity center of the human body abutted against the backrest (2) changes along with the lifting adaptability of the seat ring part (3).

6. The movable back mechanism of a lifting sitting cabinet of claim 5, wherein: the bottom support of the seat ring part (3) is provided with a first variable speed lifting unit (4), and one end of the backrest (2) far away from the seat ring part (3) is supported and provided with a second variable speed lifting unit (5).

7. The movable back mechanism of a lifting sitting cabinet of claim 6, wherein: the backrest piece (2) and the seat part (3) are arc-shaped parts forming the toilet seat (1); the first variable speed lifting unit (4) and the second variable speed lifting unit (5) are lifted in a differential speed mode, so that the backrest (2) is gradually overturned.

8. The movable back mechanism of a lifting sitting cabinet of claim 6, wherein: the seat ring part (3) is in a ring shape, the seat ring part (3) is provided with a containing groove (6), and the backrest (2) and the second variable speed lifting unit (5) are correspondingly arranged in the containing groove (6); lifting of the second variable-speed lifting unit (5) independently drives the backrest (2) to turn over.

9. A movable back mechanism of a lifting sitting cabinet according to claim 3, wherein: the backrest (2) and the seat ring part (3) are connected with each other through a hinge structure, so that the backrest (2) can be turned over relative to the seat ring part (3).

10. A movable back mechanism of a lifting sitting cabinet according to claim 3, wherein: one end of the backrest (2) is connected with the seat ring part (3) through a flexible connecting piece; in the overturning process of the backrest (2), one end of the backrest (2) is kept in a connection state with the seat ring part (3).