CN203354053U - Chair suitable for old people - Google Patents

Abstract

The utility model provides a seat for the elderly, which at least includes a seat surface, a backrest, an armrest and a support that can be assembled together. The seat for the elderly is also provided with a seat height adjustment mechanism, and the height of the seat surface The adjustment mechanism is composed of two parallelogram four-bar linkages connected by cross bars, the bottom of the four-bar linkage is fixed on the inner side of the side of the support, and the side is connected to the side of the support through a return spring; The side of the support is provided with a first limit groove, and the side of the four-bar linkage mechanism is provided with a first limit bolt, and the first limit bolt can move in the first limit groove; the seat surface Hinged to the top edge of the four-bar linkage mechanism, the front and rear ends of the chair are connected to the cross bar through springs to limit the pitch angle of the chair. The utility model can realize standing up smoothly without exerting great force on the legs, and is suitable for the elderly.

Description

seat for elderly

technical field

The utility model relates to a furniture frame, in particular to an elderly seat.

Background technique

The seat surface of the existing common seat is horizontal, and when a person stands up from the chair, the body is fully supported by leg strength. It is difficult to stand up due to the lack of leg strength of the elderly. As our country has stepped into an aging society, and the elderly have always been neglected marginalized groups, so the issue of the elderly has become a very important issue. Through research, it is found that there are almost no special seats suitable for the elderly on the market; therefore, it is urgent to design a seat suitable for the elderly.

Utility model content

The technical problem solved by the utility model is to provide a seat suitable for the elderly, which can stand up smoothly without exerting great force on the legs.

In order to solve the above problems, the utility model provides a seat for the elderly, which at least includes a seat surface, a backrest, an armrest and a support that can be assembled together. The seat for the elderly is also provided with a height adjustment mechanism for the seat surface. The height adjustment mechanism of the seat surface is composed of two parallelogram four-bar linkage mechanisms connected by cross bars. connection; the side of the support is provided with a first limit groove, and the side of the four-bar linkage mechanism is provided with a first limit bolt, and the first limit bolt can move in the first limit groove; The chair surface is hinged to the top edge of the four-bar linkage mechanism, and the front and rear ends of the chair are connected to the cross bar through springs to limit the pitch angle of the chair surface.

Further, the bottom of the backrest is hinged with the support; the side of the support is provided with a second limit groove, and the side of the backrest is provided with a second limit bolt, and the second limit bolt can be positioned on the side of the support. Move in the second limit slot.

Further, the bottom of the armrest is hinged to the support, the side of the support is provided with a third limit groove, and the side of the armrest is provided with a third limit bolt, and the third limit bolt can be placed on the Move in the third limit slot.

Further, there are four return springs, symmetrically distributed left and right; four springs at the front end of the chair surface are extension springs, and two springs at the rear end are extension springs on the left and right sides.

Further, there are four first limiting grooves, two second limiting grooves and two third limiting grooves, which are distributed symmetrically.

The utility model has the advantages of:

By studying the sitting habits of the elderly, find out the root cause of the difficulty in standing up in the elderly. It is possible to stand up smoothly without exerting a lot of force on the legs. Using the principle of mechanical structure instead of using electric power as an auxiliary force, the structure of the seat is simplified, the weight and production cost are reduced, and the probability of failure of the electric system is reduced. The operation is simple and it is suitable for the elderly.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the present invention.

Fig. 2 is a right side view of Fig. 1 .

Fig. 3 is a schematic diagram when a person sits down.

Fig. 4 is a schematic diagram when a person stands up.

Detailed ways

Embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

The utility model provides a seat for the elderly as shown in accompanying drawings 1 to 2, at least including a seat surface 1, a backrest 2, an armrest 3 and a support 4 that can be assembled together, and the seat for the elderly is also provided with Chair surface height adjustment mechanism 5, chair surface height adjustment mechanism 5 is formed by two parallelogram four-bar linkage mechanisms connected by cross bars, the bottom edge of the four-bar linkage mechanism is fixed on the inner side of the side of the support 4, and the side edges are connected to each other by the return spring 61. The side of the support 4 is connected; the side of the support 4 is provided with a first limit groove 41, and the side of the four-bar linkage mechanism is provided with a first limit bolt 71, and the first limit bolt 71 can move in the first limit groove 41 ; The chair surface 1 is hinged on the top edge of the four-bar linkage mechanism, and the front and rear ends of the chair surface 1 are connected with the cross bars through springs, which are used to limit the pitch angle of the chair surface 1 . The bottom of the backrest 2 is hinged with the support 4; the side of the support 4 is provided with a second limit groove 42, and the side of the backrest 2 is provided with a second limit bolt 72, and the second limit bolt 72 can be placed in the second limit groove 42 move. The bottom of the handrail 3 is hinged with the support 4, the side of the handrail 3 is provided with a third limiting groove 43, the side of the support 4 is provided with a third limiting bolt 73, and the third limiting bolt 73 can be placed in the third limiting groove 43 move. There are four return springs 61, symmetrically distributed left and right; four springs 62 at the front end of the seat surface 1 are extension springs, and four rear end springs 63 are extension springs. There are four first limiting grooves 41 , two second limiting grooves 42 and two third limiting grooves 43 , which are symmetrically distributed.

In the unstressed state, the chair surface has a certain inclination angle through the tension spring, the parallelogram structure under the fulcrum is also in a relaxed state, and the height of the seat surface is high; In the tension state, the chair surface will produce lever movement, resulting in a certain angle, and the connecting rod compresses the parallelogram four-bar linkage mechanism and begins to deform. At this time, the spring is in the most tense state; as shown in Figure 4, when a person wants to stand up, the body leans forward and the center of gravity Moving forward, due to the reduction of the force applied to the extension spring at the rear, the extension spring will produce a reaction force, and the parallelogram four-bar linkage mechanism will also be restored to its original shape due to the extension spring, thereby deforming into a form that is convenient for standing up. Through experiments, it is found that through the lever movement and the principle of parallelogram, the position of the center of gravity changes during the process of standing up can be used to realize the smooth standing up without using a lot of force on the legs.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (5)

1. the elderly's seat, at least comprise combining seat, backrest, handrail and bearing together, it is characterized in that: described the elderly's seat also is provided with the seat height adjustment mechanism, described seat height adjustment mechanism is that two parallelogram four-bar linkages connect to form by cross bar, the inboard of described bearing side is fixed on described quadric chain base, and side is connected with described bearing side by returning spring; Described bearing side is provided with the first stopper slot, and described quadric chain side is provided with the first caging bolt, and described the first caging bolt can move in described the first stopper slot; Described seat is articulated in described quadric chain top margin, and described seat rear and front end is connected with described cross bar by spring, is used for limiting the angle of seat pitching.

2. a kind of the elderly's seat as claimed in claim 1, is characterized in that: hinged with described bearing bottom described backrest; Described bearing side is provided with the second stopper slot, and described backrest side is provided with the second caging bolt, and described the second caging bolt can move in described the second stopper slot.

3. a kind of the elderly's seat as claimed in claim 1 or 2, it is characterized in that: described handrail bottom is hinged with described bearing, described bearing side is provided with the 3rd stopper slot, and described handrail side is provided with the 3rd caging bolt, and described the 3rd caging bolt can move in described the 3rd stopper slot.

4. a kind of the elderly's seat as claimed in claim 3, it is characterized in that: described returning spring is four, left-right symmetry distributes; Described seat front springs is four, is extension spring, and spring left and right in rear end is respectively two, is extension spring.

5. a kind of the elderly's seat as claimed in claim 4, it is characterized in that: described the first stopper slot is four, and described the second stopper slot, the 3rd stopper slot are two, and left-right symmetry distributes.

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