CN218106317U - Supporting framework of chair - Google Patents

Abstract

The utility model relates to the field of chair components, and discloses a supporting framework of a chair, which comprises a seat board framework, a supporting leg framework and handrail frameworks, wherein the handrail frameworks and the supporting leg frameworks are 2 and are respectively arranged at two sides of the seat board framework; the armrest framework comprises armrests, front supporting legs and rear supporting legs, the front supporting legs and the rear supporting legs are connected to the front ends and the rear ends of the armrests, the supporting leg framework comprises front supporting legs and rear supporting legs, the front supporting legs and the rear supporting legs are connected with the seat board framework, the front supporting legs and the rear supporting legs are located between the front supporting legs and the rear supporting legs, and the armrests extend downwards in an inclined mode from the front supporting legs to the rear supporting legs; the supporting leg framework is fixedly connected with the seat board framework, and the front supporting leg and the rear supporting leg are fixedly connected with the supporting leg framework and/or the seat board framework; the front support leg, the rear support leg, the front support leg and the rear support leg are all in contact with the ground. The skeleton has simple structure, easy force application for patients, forward gravity center and good stability.

Description

Supporting framework of chair

Technical Field

The utility model relates to a chair parts field especially relates to a support chassis of chair.

Background

The ophthalmology technical operation is one of the important means for treating the ophthalmopathy, and a plurality of patients with different ages and body types are treated in an ophthalmology clinic of a hospital;

the prior ophthalmic chair mostly adopts four support legs to touch the ground, for example, CN201520962750.7 (D1) discloses an ophthalmic comprehensive treatment chair which comprises a chair surface, chair legs and a backrest, wherein the chair legs comprise a left chair leg and a right chair leg which are connected through a cross beam, the chair surface is arranged on the cross beam between the chair legs at two sides, the backrest is hinged on rear legs at two sides, the backrest comprises a back cushion, a support frame for supporting the back cushion, an adjusting mechanism for adjusting the inclination of the backrest on the hinged support frame, a rocker arm which is arranged at the side of the support frame and has a lifting function, a water receiving device arranged on the rocker arm, and a head support which is arranged on the support frame and is used for supporting the head; a bracket is arranged on the cross beam below the chair surface, a water collecting device is arranged on the bracket, and the water collecting device is connected with the water receiving device through a guide pipe.

When the old people get up and lie down, the chair with the structure is not beneficial to the old people to exert force, and in addition, the stability needs to be improved when the gravity center is too close to the back when the old people lie down.

The utility model discloses the technical problem that needs to solve is: the arm and the wrist of a patient can exert force more easily when the posture of the patient is changed, and the stability of the ophthalmic chair is improved.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a support skeleton of chair, this skeleton simple structure, easily patient have an effort, and the focus leans on preceding, and stability is good.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

a supporting framework of a chair comprises a seat board framework, supporting leg frameworks and handrail frameworks, wherein the number of the handrail frameworks and the number of the supporting leg frameworks are 2, and the handrail frameworks and the supporting leg frameworks are respectively arranged on two sides of the seat board framework; the armrest framework comprises armrests, front supporting legs and rear supporting legs, the front supporting legs and the rear supporting legs are connected to the front ends and the rear ends of the armrests, the supporting leg framework comprises front supporting legs and rear supporting legs, the front supporting legs and the rear supporting legs are connected with the seat board framework, the front supporting legs and the rear supporting legs are located between the front supporting legs and the rear supporting legs, and the armrests extend downwards in an inclined mode from the front supporting legs to the rear supporting legs; the supporting leg framework is fixedly connected with the seat board framework, and the front supporting leg and the rear supporting leg are fixedly connected with the supporting leg framework and/or the seat board framework; the front support leg, the rear support leg, the front support leg and the rear support leg are all in contact with the ground.

Generally, the supporting framework of the utility model can be applied to ophthalmic chairs and dental chairs; the present invention can be applied to other chair-related fields, but it is only necessary to consider the application in terms of cost and structural simplicity.

The scheme has at least one of the following advantages or beneficial effects:

the utility model discloses an 8 contact points with ground, the handrail adopts the slope to arrange simultaneously, does benefit to the patient and when changing the posture, and handheld handrail is exerted oneself to according to the health position change, the forearm of patient or the power that can be better of wrist, the power that the handrail bore can disperse to 8 contact points on, improve stability, and the utility model discloses a behind the skeleton was applied to the ophthalmic chair, when the patient posture changed, the focus of the gravity that the skeleton bore can shift forward, improves stability.

Drawings

FIG. 1 is a perspective view of embodiment 1;

FIG. 2 is a front view of embodiment 1;

FIG. 3 is a left side view of embodiment 1;

FIG. 4 is a state diagram of the use of embodiment 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the implementations of the present application, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Example 1

Referring to fig. 1-3, a supporting framework of a chair comprises a seat board framework 1, a leg framework 2 and a handrail framework 3, wherein the handrail framework 3 and the leg framework 2 are 2 and are respectively arranged on two sides of the seat board framework 1; the armrest framework 3 comprises an armrest, a front leg 31 and a rear leg 32 which are connected with the front end and the rear end of the armrest, the leg framework 2 comprises a front leg 21 and a rear leg 22 which are connected with the seat board framework 1, the front leg 31 and the rear leg 32 are positioned between the front leg 21 and the rear leg 22, and the armrest obliquely extends downwards from the front leg 21 to the rear leg 22; the leg framework 2 is fixedly connected with the seat board framework 1, and the front support leg 31 and the rear support leg 32 are fixedly connected with the leg framework 2 and/or the seat board framework 1; the front foot 31, the rear foot 32, the front leg 21 and the rear leg 22 are all in contact with the ground.

Compared with the traditional chair for ophthalmology (odontology) department, the armrest is directly connected at the position close to the rear supporting leg 22, the front supporting leg 31 and the rear supporting leg 32 are arranged in the chair, the force born by the armrest is mainly borne by the front supporting leg 31 and the rear supporting leg 32, partial force is dispersed to the front supporting leg 21 and the rear supporting leg 22, the gravity applied by a person when the posture is changed can be uniformly dispersed below the chair plate framework 1, and the problem that the gravity center of the traditional scheme is unstable due to the fact that the gravity center of the traditional scheme is too far back is avoided.

Simultaneously, this scheme has adopted 8 and the contact point on ground, and the handrail adopts the slope to arrange simultaneously, does benefit to the patient and when changing the posture, holds the handrail and exert oneself to according to the health position change, the old man uses the convenience of ophthalmology chair to the forearm or the power that the wrist of patient can be better.

Preferably, the armrest includes an armrest body 33 and a U-shaped section 34 opened toward the rear side of the seat plate frame 1, the armrest body 33 extending obliquely downward from the front leg 21 to the rear leg 22; one end of the armrest body 33 is connected to one end of the U-shaped section 34, the other end of the armrest body 33 is connected to the rear leg 32, and the other end of the U-shaped section 34 is connected to the front leg 31. The U-shaped section 34 is adopted in the embodiment, so that the old people can change from a sitting posture to a standing posture and from the standing posture to the sitting posture, the old people can have better wrist stable support transition, and the use safety is improved.

The handrail framework 3 of the embodiment is designed by integration and is formed by welding one or more pipelines, and the handrail framework is stable and simple in structure and light in weight.

In order to improve the change of the old man from sitting to standing position, the U-shaped section 34 extends out of the front end of the seat frame 1. Thus, the old can also have a proper position for holding by hands after standing up.

In this embodiment, the front leg 31 and the rear leg 32 are fixedly connected to the leg frame 2; the front end of the seat plate framework 1 is provided with a bending part 11 extending downwards, the front support leg 31 is fixedly connected with the bending part 11, preferably, the rear support leg 22 extends to the rear side of the rear end of the seat plate framework 1, and the front support leg 21 extends to the front side of the front end of the seat plate framework 1.

The span change of the front support leg 21 and the rear support leg 22 can improve the stability of the framework of the embodiment, and the seat plate framework 1 can be stably connected with the other two frameworks and realize the force transmission through the fixed connection of the seat plate framework 1 and the support leg framework 2, the front support leg 31 and the bent part 11.

In this embodiment, a cross bar 23 is provided between the two rear legs 22, the cross bar 23 extending between the rear legs 22 and the rear foot 32. The cross bar 23 is mainly used for fixing a cylinder, an oil cylinder or an electric cylinder (electric push rod) for supporting a peripheral backrest, the hinged position of the electric push rod is positioned between the rear supporting leg 22 and the rear supporting leg 32, and the gravity of the backrest can extend to the position between the rear supporting leg 22 and the rear supporting leg 32, so that the working gravity center can further move forward, and the stability is improved.

Preferably, the leg frame 2 further comprises a connecting rod 24, wherein the connecting rod 24 is connected with the top of the front leg 21 and the top of the rear leg 22; the seat board framework 1 is fixedly connected with the connecting rod 24, the included angle between the handrail and the horizontal plane is 15-25 degrees, in the embodiment, 18 degrees, and the comfortable holding angle is suitable for most people with group position change after repeated experiments.

Preferably, connecting pipes 25 are connected between the two front supporting legs 21 and between the two rear supporting legs 22, and the seat plate framework 1 comprises a left pipe body 12, a right pipe body 13 and a seat plate supporting pipe 14 connected between the left pipe body 12 and the right pipe body 13;

the seat board framework 1, the supporting leg framework 2 and the handrail framework 3 are all made of metal tubes;

a soft cushion 35 is arranged above the rear part of the armrest;

the bottoms of the front supporting foot 31, the rear supporting foot 32, the front supporting leg 21 and the rear supporting leg 22 are all provided with height-adjusting anti-skid pads 4.

The fixed connection is generally through bolting or welding.

The use view of the frame, seat plate and backrest in combination of the present embodiment is shown in fig. 4.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The supporting framework of the chair comprises a seat board framework and supporting leg frameworks, and is characterized by also comprising 2 handrail frameworks, wherein the handrail frameworks and the supporting leg frameworks are respectively arranged at two sides of the seat board framework; the armrest framework comprises armrests, front supporting legs and rear supporting legs, the front supporting legs and the rear supporting legs are connected to the front ends and the rear ends of the armrests, the supporting leg framework comprises front supporting legs and rear supporting legs, the front supporting legs and the rear supporting legs are connected with the seat board framework, the front supporting legs and the rear supporting legs are located between the front supporting legs and the rear supporting legs, and the armrests extend downwards in an inclined mode from the front supporting legs to the rear supporting legs; the supporting leg framework is fixedly connected with the seat board framework, and the front supporting leg and the rear supporting leg are fixedly connected with the supporting leg framework and/or the seat board framework; the front support leg, the rear support leg, the front support leg and the rear support leg are all in contact with the ground.

2. The support frame for a chair of claim 1, wherein the armrest comprises an armrest body and a U-shaped section opening toward the rear side of the seat pan frame, the armrest body extending obliquely downward from the front leg to the rear leg; one end of the armrest body is connected with one end of the U-shaped section, the other end of the armrest body is connected with the rear support leg, and the other end of the U-shaped section is connected with the front support leg.

3. A support frame for a chair as claimed in claim 2, wherein the U-shaped section extends beyond the front end of the seat frame.

4. The support frame of a chair of claim 1, wherein the front and rear legs are fixedly connected to the leg frame; the front end of the seat plate framework is provided with a bending part extending downwards, and the front support legs are fixedly connected with the bending part.

5. The support frame for a chair of claim 1, wherein the rear leg extends to a rear side of the rear end of the seat frame and the front leg extends to a front side of the front end of the seat frame.

6. The support frame of a chair of claim 1, wherein a crossbar is provided between the two rear legs, the crossbar extending between the rear legs and the rear legs.

7. The support frame of a chair of claim 1, wherein the leg frame further comprises a connecting rod connecting the top of the front leg and the top of the rear leg; the seat board framework is fixedly connected with the connecting rod.

8. A support frame for a chair as claimed in claim 1, wherein the arms are angled at an angle of 15-25 ° to the horizontal.

9. The support frame of a chair according to claim 1, wherein a connecting pipe is connected between the two front legs and between the two rear legs.

10. The support frame of a chair according to claim 1, wherein the seat plate frame comprises a left tube, a right tube and a seat plate support tube connected between the left tube and the right tube;

the seat board framework, the supporting leg framework and the handrail framework are all made of metal tubes;

a soft cushion is arranged above the rear part of the armrest;

and the bottoms of the front support leg, the rear support leg, the front support leg and the rear support leg are all provided with height-adjusting anti-slip pads.

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