CN203676556U - Chair for old people - Google Patents

Abstract

The utility model discloses a chair for the elderly, comprising a base support mechanism, a footrest mechanism, a backrest mechanism, a connecting rod mechanism and an electric push rod, and also comprising a seat lifting mechanism, wherein the seat lifting mechanism is riveted to the base support mechanism, the footrest mechanism, the backrest mechanism and the connecting rod mechanism are all arranged on the seat lifting mechanism, and the connecting rod mechanism connects the footrest mechanism and the backrest mechanism; the seat lifting mechanism comprises a lifting bracket, a first long rod, a second long rod, a third long rod, a first side plate, a second side plate, a third side plate and a bracket; the first side plate and the second side plate are both mounted on the bracket, the bracket is fixedly connected to the third side plate, the third side plate is respectively riveted to both sides of the lifting bracket, and the lifting bracket is riveted to the base support mechanism. The utility model has the function of enabling the lifting of the footrest and the lying down of the backrest to be arranged in sequence, and the function of assisting the elderly to stand.

Description

elderly chair

technical field

The utility model relates to a chair for the elderly.

Background technique

At present, the phenomenon of aging is becoming more and more serious in China, but the chairs and stools are the same. There is a lack of elderly chairs designed for the elderly in the market. There is a lot of room for development of elderly chairs in the domestic market. The requirement for the chair for the elderly lies in simplification, simple operation, and suitable for the body structure of the elderly. In terms of ergonomics, it is best to realize the function of extending the footrest first and then lying down on the backrest, and realize the function of assisting the elderly to stand. .

Contents of the invention

In order to overcome the disadvantages of complicated design and cumbersome operation in existing chairs for the elderly, the utility model provides a chair for the elderly with simple structure and convenient operation.

The technical scheme that the utility model adopts is:

The elderly chair includes a base bracket mechanism, a footrest mechanism, a backrest mechanism, a connecting rod mechanism and an electric push rod, and is characterized in that it also includes a seat lifting mechanism, the seat lifting mechanism is riveted with the base bracket mechanism, and the The footrest mechanism, the backrest mechanism and the linkage mechanism are all arranged on the seat lifting mechanism, and the linkage mechanism is connected to the footrest mechanism and the backrest mechanism;

The seat plate lifting mechanism includes a lifting bracket, a first long rod, a second long rod, a third long rod, a first side plate, a second side plate, a third side plate and a bracket; the first side plate Both the second side plate and the second side plate are installed on the bracket, and the bracket is fixedly connected to the third side plate, and the third side plate is riveted on both sides of the lifting bracket respectively. The lifting bracket is riveted on the base bracket mechanism; the footrest mechanism is connected to the first side plate through a bolt;

The linkage mechanism includes a fifth link, a sixth link, a seventh link, an eighth link and a fourth side plate; the seventh link is connected to the third side plate by a pin Above, the seventh connecting rod is provided with three connecting holes, and the three connecting holes are respectively hinged with one end of the fifth connecting rod, one end of the sixth connecting rod and one end of the eighth connecting rod, The other end of the eighth connecting rod is hinged to the other end of the ninth connecting rod, the other end of the sixth connecting rod is hinged to the fourth side plate, and the other end of the fifth connecting rod Hinged with the footrest mechanism;

The backrest mechanism includes a ninth connecting rod, a tenth connecting rod and a backrest; the backrest is hinged to the second side plate through a latch, and one end of the tenth connecting rod is hinged to the lower end of the backrest. The other end of the tenth connecting rod, one end of the ninth connecting rod and the second side plate are hinged together through a latch, and the other end of the ninth connecting rod is hinged with the linkage mechanism;

Both ends of the first long rod are respectively connected to the fourth side plates on both sides, one end of the electric push rod is connected to the first long rod, and the other end of the electric push rod is connected to On the base bracket mechanism;

The third long rod is arranged on both sides of the base support mechanism and one end is hinged with the base support mechanism, and the other ends of the third long rods on both sides are connected to the second through a connecting block. The long rod is connected, the fourth side plate is provided with a chute, the third long rod is provided with a slide rail matching the chute, and the slide rail can be moved along the The chute slides.

Further, the footrest mechanism includes a quadrangular mechanism and a footrest composed of a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, and the end of the quadrangular mechanism supports the described rest Foot plate; the fifth connecting rod is hinged to the quadrilateral mechanism, and the quadrilateral mechanism is connected to the first side plate.

Further, the base bracket mechanism includes a base and triangular plates placed on both sides of the base, and the lifting bracket is riveted on the triangular plates.

Further, the first long rod and the base are equipped with inserts, and the electric push rod is connected in the middle of the inserts through a pin.

The base support mechanism described in the utility model is connected to the ground, and its position is fixed; the seat lifting mechanism is riveted on the base support mechanism; the footrest mechanism, the backrest mechanism and the connecting rod mechanism are all placed on the seat lifting mechanism, and The lifting of the seat plate lifting mechanism can realize overall lifting; the link mechanism connects the footrest mechanism and the backrest mechanism.

The seat lifting mechanism is an evolution model of a four-bar mechanism. During the lifting operation, the front edge of the seat can be lifted by 10 cm, and the rear edge of the seat can be lifted by 35 cm, so as to realize the effect of the elderly chair assisting the elderly to stand.

The eighth link drives the ninth link to tilt or lift the backrest downward; the initial position of the ninth link and the tenth link presents a large angle (close to 180 degrees), and the backrest mechanism is in the eighth link The angle gradually exceeds 180 degrees under the driving of the backrest mechanism. The function realized by this backrest mechanism is not to make the backrest lie down immediately, but there is a time difference, so as to meet the effect of lifting the footrest first and lying down behind the backrest.

The seventh connecting rod plays two functions, the first function is to drive the movement of the footrest mechanism by driving the fifth connecting rod, and the second function is to drive the movement of the backrest mechanism by driving the eighth connecting rod.

The electric push rod is controlled to be extended or shortened by a manual button, and its initial position is that the footrest mechanism is not opened, the backrest mechanism is not tilted, and the seat lifting mechanism is not lifted.

The movement process of the utility model is as follows: (the default initial position is that the footrest mechanism is not lifted, and the backrest mechanism is not lying down)

When the electric push rod is shortened, the first long rod drives the fourth side plate to rotate, and the chute of the fourth side plate moves relative to the third long rod. During the rotation of the fourth side plate, it drives the sixth connecting rod to move, and the fourth side plate moves. The six connecting rods drive the seventh connecting rod to rotate, and the seventh connecting rod decomposes into two motion trajectories, one promotes the extension of the footrest mechanism through the fifth connecting rod, and the other drives the tilting of the backrest mechanism through the eighth connecting rod.

When the electric push rod is extended, after driving the footrest mechanism and the backrest mechanism back to the initial position, the fourth side plate drives the third long rod to lift up, and the third long rod drives the connecting block and the lifting bracket to lift up, thereby driving The third side plate and all mechanisms above the third side plate are lifted up.

The beneficial effects of the utility model are embodied in that the structure is simple, the operation is convenient, and the footrest mechanism can be lifted and the backrest is laid down in a sequential order.

Description of drawings

Fig. 1 is a three-dimensional view of the utility model.

Fig. 2 is a front view of the utility model (the dotted line part is a view that the footrest is raised and the backrest is down).

Fig. 3 is a side view of the utility model.

Fig. 4 is a view of the lifting mechanism of the utility model when it is lifted.

Fig. 5 is a view of the lifting mechanism of the present invention when it is not lifted.

Detailed ways

Referring to Figures 1 to 5, the elderly chair includes a base support mechanism, a footrest mechanism, a backrest mechanism, a connecting rod mechanism and an electric push rod, and also includes a seat lifting mechanism, and the seat lifting mechanism is riveted with the base support mechanism, The footrest mechanism, the backrest mechanism and the linkage mechanism are all arranged on the seat lifting mechanism, and the linkage mechanism is connected to the footrest mechanism and the backrest mechanism;

The seat board lifting mechanism includes a lifting bracket 23, a first long rod 20, a second long rod 21, a third long rod 24, a first side board 1, a second side board 2, a third side board 6 and a bracket 19 ; The first side plate 1 and the second side plate 2 are installed on the support 19, the support 19 is fixedly connected to the third side plate 6, the third side plate 6 are respectively riveted on both sides of the lifting bracket 23, and the lifting bracket 23 is riveted on the base bracket mechanism; the footrest mechanism is connected to the first side plate 1 through a bolt;

Described link mechanism comprises the fifth connecting rod 7, the sixth connecting rod 4, the seventh connecting rod 5, the eighth connecting rod 16 and the fourth side plate 3; the seventh connecting rod 5 is connected to the On the third side plate 6 described above, the seventh connecting rod 5 is provided with three connecting holes, and the three connecting holes are connected with one end of the fifth connecting rod 7 and the end of the sixth connecting rod 4 respectively. One end and one end of the eighth connecting rod 16 are hinged, the other end of the eighth connecting rod 16 is hinged with the other end of the ninth connecting rod 15, the other end of the sixth connecting rod 4 is connected to the fourth The side plate 3 is hinged, and the other end of the fifth connecting rod 7 is hinged with the footrest mechanism;

The backrest mechanism includes a ninth connecting rod 15, a tenth connecting rod 14 and a backrest 13; the backrest 13 is hinged to the second side plate 2 through a latch, and one end of the tenth connecting rod 14 is connected to the The lower end of the backrest 13 is hinged, the other end of the tenth connecting rod 14, one end of the ninth connecting rod 15 and the second side plate 2 are hinged together through a latch, and the other end of the ninth connecting rod 15 is One end is hinged to the linkage mechanism;

Both ends of the first long rod 20 are respectively connected to the fourth side plates 3 on both sides, one end of the electric push rod 17 is connected to the first long rod 20, and the electric push rod The other end of 17 is connected on the base bracket mechanism;

The third long rod 24 is arranged on both sides of the base support mechanism and one end is hinged with the base support mechanism. The second long rod 21 is connected, the fourth side plate 3 is provided with a chute, the third long rod 24 is provided with a slide rail suitable for the chute, and the described The slide rail can slide along the chute.

Further, the footrest mechanism includes a quadrangular mechanism and a footrest 12 composed of the first connecting rod 8, the second connecting rod 9, the third connecting rod 10 and the fourth connecting rod 11, and the end of the quadrangular mechanism supports There is the footrest 12; the fifth connecting rod 7 is hinged to the quadrilateral mechanism, and the quadrilateral mechanism is connected to the first side plate 1.

Further, the base support mechanism includes a base 18 and triangular plates 25 placed on both sides of the base 18 , and the lifting bracket 23 is riveted on the triangular plates 25 .

Further, the first long rod 20 and the base 18 are equipped with inserts 26 , and the electric push rod 17 is connected in the middle of the inserts 26 through a bolt.

The base support mechanism described in the utility model is connected to the ground, and its position is fixed; the seat lifting mechanism is riveted on the base support mechanism; the footrest mechanism, the backrest mechanism and the connecting rod mechanism are all placed on the seat lifting mechanism, and The lifting of the seat plate lifting mechanism can realize overall lifting; the link mechanism connects the footrest mechanism and the backrest mechanism.

The seat lifting mechanism is an evolution model of a four-bar mechanism. During the lifting operation, the front edge of the seat can be lifted by 10 cm, and the rear edge of the seat can be lifted by 35 cm, so as to realize the effect of the elderly chair assisting the elderly to stand.

The eighth link 16 drives the ninth link 15 to tilt or lift the backrest 13 downward; the initial positions of the ninth link 15 and the tenth link 14 present a large angle (close to 180 degrees), and the backrest mechanism Driven by the eighth connecting rod 16, its angle slowly exceeds 180 degrees. The function realized by this backrest mechanism is not to make the backrest lie down immediately, but there is a time difference, so that the footrest is lifted first and the backrest lies down. Effect.

The seventh connecting rod 5 plays two functions, the first function is to drive the movement of the footrest mechanism by driving the fifth connecting rod 7, and the second function is to drive the movement of the backrest mechanism by driving the eighth connecting rod 16 sports.

The electric push rod 17 is extended or shortened by manual button control, and its initial position is that the footrest mechanism is not opened, the backrest mechanism is not tilted, and the seat plate lifting mechanism is in an unraised state.

The movement process of the utility model is as follows: (the default initial position is that the footrest mechanism is not lifted, and the backrest mechanism is not lying down)

When the electric push rod 17 shortens, it drives the fourth side plate 3 to rotate through the first long rod 20, and the chute of the fourth side plate 3 moves relative to the third long rod 24. During the rotation of the fourth side plate 3, it drives the fourth side plate 3 to rotate. The six connecting rods 4 move, the sixth connecting rod 4 drives the seventh connecting rod 5 to rotate, and the seventh connecting rod 5 decomposes into two motion trajectories, one pushes the extension of the footrest mechanism through the fifth connecting rod 7, and the other passes through the eighth connecting rod 7 Connecting rod 16 drives the tilting of backrest mechanism.

When the electric push rod 17 is extended, after driving the footrest mechanism and the backrest mechanism to return to the initial position, the fourth side plate 3 drives the third long rod 24 to lift up, and the third long rod 24 drives the connecting block 22 and the lifting bracket 23 Lifting up, thereby driving the third side plate 6 and all mechanisms above the third side plate 6 to lift up.

The content described in the embodiments of this specification is only an enumeration of the implementation forms of the inventive concept, and the protection scope of the present utility model should not be regarded as limited to the specific forms stated in the embodiments, and the protection scope of the present utility model also extends to this invention. Equivalent technical means that those skilled in the art can think of according to the concept of the utility model.

Claims (4)

1. The chair for the elderly, including a base bracket mechanism, a footrest mechanism, a backrest mechanism, a connecting rod mechanism and an electric push rod, and is characterized in that it also includes a seat lifting mechanism, and the seat lifting mechanism is riveted with the base bracket mechanism. The footrest mechanism, the backrest mechanism and the linkage mechanism are all arranged on the seat lifting mechanism, and the linkage mechanism is connected to the footrest mechanism and the backrest mechanism; The seat plate lifting mechanism includes a lifting bracket, a first long rod, a second long rod, a third long rod, a first side plate, a second side plate, a third side plate and a bracket; the first side plate Both the second side plate and the second side plate are installed on the bracket, and the bracket is fixedly connected to the third side plate, and the third side plate is riveted on both sides of the lifting bracket respectively. The lifting bracket is riveted on the base bracket mechanism; the footrest mechanism is connected to the first side plate through a bolt; The linkage mechanism includes a fifth link, a sixth link, a seventh link, an eighth link and a fourth side plate; the seventh link is connected to the third side plate by a pin Above, the seventh connecting rod is provided with three connecting holes, and the three connecting holes are respectively hinged with one end of the fifth connecting rod, one end of the sixth connecting rod and one end of the eighth connecting rod, The other end of the eighth connecting rod is hinged to the other end of the ninth connecting rod, the other end of the sixth connecting rod is hinged to the fourth side plate, and the other end of the fifth connecting rod Hinged with the footrest mechanism; The backrest mechanism includes a ninth connecting rod, a tenth connecting rod and a backrest; the backrest is hinged to the second side plate through a latch, and one end of the tenth connecting rod is hinged to the lower end of the backrest. The other end of the tenth connecting rod, one end of the ninth connecting rod and the second side plate are hinged together through a latch, and the other end of the ninth connecting rod is hinged with the linkage mechanism; Both ends of the first long rod are respectively connected to the fourth side plates on both sides, one end of the electric push rod is connected to the first long rod, and the other end of the electric push rod is connected to On the base bracket mechanism; The third long rod is arranged on both sides of the base support mechanism and one end is hinged with the base support mechanism, and the other ends of the third long rods on both sides are connected to the second through a connecting block. The long rod is connected, the fourth side plate is provided with a chute, the third long rod is provided with a slide rail matching the chute, and the slide rail can be moved along the The chute slides. 2. The chair for the elderly according to claim 1, characterized in that: said footrest mechanism comprises a quadrilateral mechanism and a footrest composed of a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod , the end of the quadrilateral mechanism is supported by the footrest; the fifth connecting rod is hinged to the quadrilateral mechanism, and the quadrilateral mechanism is connected to the first side plate. 3. The chair for the elderly according to claim 2, wherein the base support mechanism comprises a base and triangular plates placed on both sides of the base, and the lifting bracket is riveted on the triangular plates. 4 . The elderly chair according to claim 3 , wherein inserts are installed on the first long rod and the base, and the electric push rod is connected in the middle of the inserts through a bolt.

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