CN215132727U

CN215132727U - Chair structure with directional chair back

Info

Publication number: CN215132727U
Application number: CN202121049831.XU
Authority: CN
Inventors: 王建焕; 刘广鹏; 寿梦婕; 朱威灵
Original assignee: Hangzhou Guochen Med Link Robot Technology Co Ld
Current assignee: Hangzhou Guochen Med Link Robot Technology Co Ld
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-12-14
Anticipated expiration: 2031-05-17

Abstract

The utility model relates to a seat structure with directional back of the chair. The utility model aims at providing a seat structure with directional back of the chair. The utility model is suitable for a rehabilitation training equipment field. The technical scheme of the utility model is that: a chair structure with a directional chair back, having a chair base, a chair seat and a chair back, characterized in that: the lower end of the chair back is rotatably connected with the chair seat through a chair back rotating shaft, the lower part of the chair seat is arranged on a rotating frame base through a rotating shaft I parallel to the chair back rotating shaft in an inclination-angle-adjustable manner, and the lower part of the rotating frame base is fixed on the chair base; the rotating frame base and the chair back are jointly connected with a chair back orientation mechanism which can keep the included angle between the chair back and the horizontal plane unchanged when the chair seat rotates around the rotating shaft I.

Description

Chair structure with directional chair back

Technical Field

The utility model relates to a seat structure with directional back of the chair. Is suitable for the field of rehabilitation training equipment.

Background

The elderly are generally faced with various chronic diseases and the decline of human body functions, wherein the most common problems are the loss of sitting-standing conversion function of the lower limbs and the reduction of walking-standing capability. In addition, lower limb dysfunction patients such as stroke patients, hemiplegia patients, paraplegics, spinal cord injury patients and the like also need sitting and standing training urgently, so that the problems of muscular atrophy, joint stiffness, pressure sore and the like caused by long-term bed rest are solved, and preparation is made for subsequent walking training. It can be said that the sitting-standing conversion action is the conversion action of the human body from the sitting posture to other actions, and is also the basic action for the lower limb dysfunction patient to firstly recover and train.

The regular and scientific rehabilitation auxiliary training is matched with a proper medical auxiliary instrument, so that the lower limb sitting and standing conversion function is effectively recovered and improved, the limited limb function of a patient can be effectively recovered, and the daily life capacity of the patient is improved. At present, the patient sits and stands for rehabilitation training and is mainly assisted by medical care personnel. The whole training process has no instrument guide, and in addition, the weight of an adult patient is larger, so that the physical consumption of auxiliary personnel in the training process is huge, and the patient is more prone to accidental injury.

As a chair for supporting and fixing a patient in rehabilitation training, during the training in a sitting and standing way, the chair seat of the equipment is required to have an angular rotation range of 90 degrees from horizontal to vertical in the training process, and for the training comfort, the chair back needs to keep a fixed angle with the horizontal plane in the whole process.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: in response to the above-identified problems, a seat structure having a directional seat back is provided.

The utility model adopts the technical proposal that: a chair structure with a directional chair back, having a chair base, a chair seat and a chair back, characterized in that: the lower end of the chair back is rotatably connected with the chair seat through a chair back rotating shaft, the lower part of the chair seat is arranged on a rotating frame base through a rotating shaft I parallel to the chair back rotating shaft in an inclination-angle-adjustable manner, and the lower part of the rotating frame base is fixed on the chair base;

the rotating frame base and the chair back are jointly connected with a chair back orientation mechanism which can keep the included angle between the chair back and the horizontal plane unchanged when the chair seat rotates around the rotating shaft I.

The chair back orientation mechanism comprises a connecting rod I, a connecting rod II and a chair back connecting rod;

one end of a connecting rod I is rotatably connected with the rotating frame base through a rotating shaft II, the other end of the connecting rod I is connected with one end of a connecting rod II through a rotating shaft III, the other end of the connecting rod II is connected with the chair seat through a rotating shaft IV, and the chair seat, the rotating frame base, the connecting rod I and the connecting rod II form a parallelogram connecting rod mechanism;

one end of the chair back connecting rod is connected with the connecting rod II through a rotating shaft III, and the other end of the chair back connecting rod is connected with the chair back through a rotating shaft V.

The seat support has seat support frame and swivel mount, and on the swivel mount was fixed in the seat support frame, this swivel mount warp pivot I is connected the swivel mount base.

The seat base is provided with a base and an electric lifting upright post arranged on the base, and the upper end of the electric lifting upright post is connected with the rotating frame base.

The utility model has the advantages that: the utility model discloses well seat support makes the seat support can revolute I rotations of axis of rotation through I rotatable coupling swivel mount base of axis of rotation to make the seat support can simulate the human process of standing, follow the thigh and remove, realize level to vertically rotation. The utility model discloses in make the back of the chair when the seat support revolutes I rotations of axis through back of the chair orientation mechanism, make the back of the chair keep fixed angle in the training process and support patient's back.

The utility model discloses an adopt simple reliable parallelogram link mechanism to realize the directional function of the back of the chair, can realize different back of the chair angles through adjusting relevant part, also can increase flexible mechanism and make the back of the chair rotate at less within range and simulate the human upper body action of leaning forward before standing. The utility model discloses a directional back of the chair and rotatable seat support can effectively simulate the human action of sitting of standing, provides reliable support and guide for the patient. The utility model discloses used the electric lift stand, can be conveniently adjusted the user in order to adapt to different heights to the whole height of seat, enlarged application scope.

Drawings

Fig. 1 is a side view of an embodiment.

Fig. 2 is a schematic structural diagram of a chair back orientation mechanism in an embodiment.

Fig. 3 is a side view of the embodiment (seat tilted state).

10. An electric lifting upright post; 20. a seat main body; 21. a rotating frame base; 22. a seat frame; 23. a rotating frame; 24. a seatback frame; 30. a chair back orientation mechanism; 31. a connecting rod I; 32. a connecting rod II; 33. a chair back connecting rod.

Detailed Description

The embodiment is a seat structure with directional back of the chair, has the seat base and installs the seat main part on the seat base, and wherein the seat base includes the base and installs the electric lift stand on the base, and the seat main part includes seat support and the back of the chair, and wherein the back of the chair pivot rotatable coupling seat support rear end position that the back of the chair lower extreme was arranged through the level, and seat support below is installed on the electric lift stand through the swivel mount pedestal, through adjusting the electric lift stand, can adjust the user in order to adapt to different heights to seat whole height.

In this embodiment, the lower part of the base of the rotary frame is fixedly arranged at the upper end of the electric lifting upright post, the upper part of the base of the rotary frame is rotatably connected with the rotary frame which is positioned at the lower part of the front end part of the chair seat through a rotary shaft I parallel to the rotary shaft of the chair back, and is fixedly connected with the chair seat frame of the chair seat through the rotary frame, and the self inclination angle of the chair seat can be adjusted around the rotary shaft I.

In the embodiment, the chair back orientation mechanism is arranged on the base of the rotating frame and is connected with the chair back and used for keeping an included angle between the chair back and a horizontal plane unchanged when the chair seat adjusts the self inclination angle around the rotating shaft I.

Back of the chair orientation mechanism includes connecting rod I in this embodiment, connecting rod II and back of the chair connecting rod, wherein I parallel seat support of connecting rod, I one end of connecting rod is through II rotatable coupling swivel mount bases of pivot, the I other end of connecting rod is through the one end of III connecting rod II of pivot, the II other ends of connecting rod are through the back tip that leans on of the seat support frame on the IV rotatable coupling seat support of pivot, and pivot IV and the coaxial collineation of back of the chair pivot arrange, the seat support, the swivel mount base, connecting rod I and II cooperation pivots of connecting rod I, II, III and IV constitute parallelogram link mechanism.

In the embodiment, one end of the chair back connecting rod is rotatably connected with the connecting rod II through a rotating shaft IV, the other end of the chair back connecting rod is rotatably connected with the chair back frame of the chair back through a rotating shaft V, and the relative position of the connecting rod II and the chair back is kept unchanged through the chair back connecting rod.

The working principle of the embodiment is as follows: in the embodiment, in the process of rotating the seat around the rotating shaft I, as the rotating frame base is fixedly arranged on the electric lifting upright post, the position of the rotating frame base relative to the horizontal plane is unchanged, and the included angle between the connecting rod II and the horizontal plane is unchanged under the action of the parallelogram connecting rod mechanism, so that the included angle between the seat back and the horizontal plane is unchanged along with the connecting rod II under the action of the seat back connecting rod.

The above-mentioned embodiment is only used for explaining the utility model concept, and not to the limit of the utility model protection, and all utilize this concept to be right the utility model discloses carry out insubstantial change, all shall fall into the scope of protection of the utility model.

Claims

1. A chair structure with a directional chair back, having a chair base, a chair seat and a chair back, characterized in that: the lower end of the chair back is rotatably connected with the chair seat through a chair back rotating shaft, the lower part of the chair seat is arranged on a rotating frame base through a rotating shaft I parallel to the chair back rotating shaft in an inclination-angle-adjustable manner, and the lower part of the rotating frame base is fixed on the chair base;

2. The seat structure having an oriented seat back of claim 1, wherein: the chair back orientation mechanism comprises a connecting rod I, a connecting rod II and a chair back connecting rod;

3. The seat structure having an oriented seat back of claim 1, wherein: the seat support has seat support frame and swivel mount, and on the swivel mount was fixed in the seat support frame, this swivel mount warp pivot I is connected the swivel mount base.

4. A seat structure having an oriented seat back as claimed in claim 1, 2 or 3, wherein: the seat base is provided with a base and an electric lifting upright post arranged on the base, and the upper end of the electric lifting upright post is connected with the rotating frame base.