CN203748976U - Sitting posture changeable office chair - Google Patents

Abstract

The office chair with convertible sitting posture of the utility model includes supporting legs, a hydraulic lifting rod, a base, two lifting armrests and a backrest bracket, and is characterized in that: a supporting rod is arranged on the backrest bracket, and the supporting rod is connected with the base through a connecting mechanism; The mechanism enables the back support to rotate and position along the axis of the support rod, and to swing and position the back support relative to the base; the front end of the base is provided with a first rotating support, a second rotating support and an arc support. In the office chair of the utility model, the rotation of the backrest bracket can make the thermal insulation or air-permeable surface fit the human body, which is suitable for replacement use in winter and summer; by changing the included angle of the backrest bracket, it is suitable for various human sitting postures, and realizes sitting Working upright and resting while lying down can effectively relieve the fatigue of the human cervical spine and spine when sitting for a long time. By arranging the first rotating bracket, the second rotating bracket and the arc-shaped bracket, the support for the legs of the human body can be effectively realized, and the fatigue of the lower limbs of the human body can be effectively relieved.

Description

Convertible office chair

technical field

The utility model relates to a changeable sitting posture type office chair, more specifically, relates to a kind of changeable sitting posture type office chair suitable for various sitting postures and reclining rest.

Background technique

With the advancement of science and technology and the acceleration of the pace of life, more and more people are engaged in mental work. For long-term sedentary mental workers, a single sitting posture for a long time will seriously affect their health. For most "sedentary people" who sit and work for a long time, there will be long-term or periodic cervical and spinal pain problems. If they are not treated correctly and treated in time in middle age, their health will be seriously affected in their later years. , or even lead to paralysis.

Office chairs are an essential tool for people to work. The "sedentary people" basically spend their office hours on the chairs. However, the existing chairs have a single structure, generally only having a backrest and armrests on both sides. , and has the function of height adjustment; but the user needs to change the inclination angle of the human body in order to rest the cervical spine and spine. Furthermore, during the lunch break, the staff generally just lie down on their own work to rest. This way of rest will seriously compress the veins and arteries on the limbs, making the blood flow poor, and a good way of rest cannot be achieved. If the existing seat can be converted into the structural form of a bed, the user can lie on it and have a rest during the lunch break, so a good rest effect will be achieved.

Contents of the invention

In order to overcome the shortcomings of the above-mentioned technical problems, the utility model provides a convertible sitting posture type office chair suitable for various sitting postures and reclining rests.

The office chair with convertible sitting posture of the utility model includes supporting legs, a hydraulic lifting rod, a base, two lifting armrests and a backrest support. It is arranged on both sides of the base; the backrest bracket is arranged at the rear end of the base, and the backrest bracket is used to support the back of the human body; its special feature is that: the backrest bracket is provided with a support rod, and the support rod is connected to the base through a connecting mechanism The connecting mechanism enables the back support to rotate and position along the axis of the support rod, and enables the back support to swing and position relative to the base; the front end of the base is provided with a first rotating support, a second rotating support and an arc support. A rotating bracket is arranged at the front end of the base, the second rotating bracket is rotationally connected with the end of the first rotating bracket, the arc bracket is rotationally connected with the second rotating bracket, and the tops of the first rotating bracket, the second rotating bracket and the arc bracket are all Provided with support pads.

The supporting legs are connected to the base through a hydraulic lifting rod, which can control the height of the base, and the backrest bracket is used for the human body to lean on; the lifting armrest can change the angle freely to meet the needs of people of different heights. The support rod on the backrest is connected with the base through the connection mechanism. The connection mechanism makes the backrest support rotatable and can also swing at the same time. The rotation of the backrest support makes different surfaces fit the back of the human body. The swing of the backrest support can change the posture of the human body. sitting posture. Through the rotation and positioning of the first rotating bracket, the second rotating bracket and the arc-shaped bracket, the lower limbs of the human body can be supported.

In the office chair with convertible sitting posture of the utility model, the base is provided with a movable cushion, and the two surfaces of the movable cushion are respectively provided with a thermal insulation cushion and a breathable cushion; the two surfaces of the backrest bracket are respectively provided with a thermal insulation backrest and breathable backrest.

The heat-retaining seat cushion and heat-retaining backrest are suitable for cold winter use, and the air-permeable seat cushion and air-permeable backrest are suitable for high-temperature summer use.

In the office chair with convertible sitting posture of the utility model, the connecting mechanism includes a beam, a left bracket, a right bracket, a universal joint and fixing sleeves located at both ends of the beam. The bracket is fixed on the beam, the left bracket, the support rod and the right bracket are fixed by the first fixing pin; the two ends of the beam are placed in the inner cavity of the fixing sleeve, and the beam and the fixing sleeve are fixed by the second fixing pin. The two ends are provided with through holes matching with the second fixing pin, and the fixing sleeve is provided with a plurality of limiting holes, and the fixing sleeve is fixed on the base.

In the office chair with convertible sitting posture of the utility model, the ends of the supporting legs are fixed with universal wheels to facilitate the movement of the whole office chair, and the top of the backrest bracket is fixed with a headrest.

The beneficial effect of the utility model is that: in the office chair of the utility model, the backrest bracket is connected with the base through the connection mechanism, the connection mechanism enables the backrest bracket to rotate around the axis of the support rod and swing relative to the base, and the rotation of the backrest bracket can make different The surface fits the back of the human body, which is suitable for replacement use in winter and summer; the swing of the backrest bracket makes it form different angles with the base, which is suitable for various human sitting postures, and realizes the peace of sitting and standing work of the staff Lying down and resting can effectively relieve the fatigue of the human cervical spine and spine when sitting for a long time. By arranging the first rotating bracket, the second rotating bracket and the arc-shaped bracket at the front end of the base, it can effectively support the legs of the human body and effectively relieve the fatigue of the lower limbs of the human body. By arranging thermal insulation cushions, thermal insulation backrests, breathable cushions, and breathable backrests, the utility model is suitable for use in both winter and summer.

The support rod on the backrest bracket is connected with the beam through the universal joint, and the left bracket and the right bracket on the beam are fixed with the support rod through the first fixing pin, which ensures the free rotation of the backrest bracket and realizes its positioning; The two ends of the crossbeam are arranged in the fixed sleeve, and the crossbeam and the fixed sleeve are fixed by the second fixed pin. The fixed sleeve and the crossbeam are respectively provided with a limit hole and a through hole that cooperate with the second fixed pin, effectively realizing the back rest. The positioning of the bracket when it is rotated relative to the base.

Description of drawings

Fig. 1 is the structural representation of the front view of the office chair of the present utility model;

Fig. 2 is the structural representation of the three-dimensional view of the office chair of the present utility model;

Fig. 3 is a structural schematic view when the first rotating bracket and the second rotating bracket are deployed in the office chair of the utility model;

Fig. 4 is a structural schematic diagram when the first rotating bracket, the second rotating bracket and the backrest bracket of the office chair of the present invention are all deployed;

Fig. 5 is a structural schematic diagram of the breathable seat cushion and the breathable backrest of the office chair of the present invention facing the human body;

Fig. 6 is a structural schematic diagram of the connection mechanism in the present invention.

In the figure: 1 supporting leg, 2 hydraulic lifting rod, 3 base, 4 lifting armrest, 5 backrest bracket, 6 supporting rod, 7 movable cushion, 8 first rotating bracket, 9 second rotating bracket, 10 arc bracket, 11 support Cushion, 12 thermal insulation cushion, 13 breathable cushion, 14 thermal insulation backrest, 15 breathable backrest, 16 headrest, 17 universal wheels, 18 beam, 19 left bracket, 20 right bracket, 21 universal joint, 22 first fixed pin, 23 Fixing sleeve, 24 second fixing pins, 25 limit holes.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

As shown in Fig. 1 and Fig. 2, the structural representation of the front view and perspective view of the present utility model are respectively provided, which include support leg 1, hydraulic lifting rod 2, base 3, lifting armrest 4, backrest support 5, support rod 6 , Movable cushion 7, first rotating bracket 8, second rotating bracket 9, arc bracket 10, support pad 11, heat preservation cushion 12, breathable cushion 13, heat preservation backrest 14, breathable backrest 15, headrest 16, universal wheel 18 ; The supporting legs 1 shown play a role in fixing and supporting, and the bottom end of each supporting leg 1 is provided with universal wheels 17, so that the entire office chair can move freely. The hydraulic lifting rod 2 is fixed on the top of the supporting leg 1, and the base 3 is fixed on the top of the hydraulic lifting rod 2. Under the action of the hydraulic lifting rod 2, the height of the base 3 can be adjusted to suit users of different heights. The movable cushion 7 is arranged on the base 3 for supporting the human body; the upper surface of the movable cushion 7 is a thermal insulation cushion 12, which is suitable for use in winter and can have a certain heat preservation effect; the lower surface of the movable cushion 7 is a breathable cushion 13 , suitable for summer use, has the effect of ventilation and ventilation.

The shown backrest bracket 5 is arranged on the rear end of the base 3, and the support rod 6 is arranged on the backrest bracket 5, and the support rod 6 is connected with the base 3 through a connecting mechanism. The connecting mechanism not only enables the back support 5 to rotate around the axis of the support rod 6, but also allows the back support 5 to swing relative to the base 3 to change the angle between the back support 5 and the base 3. The two surfaces of the backrest bracket are heat-insulating backrest 14 and ventilating backrest 15 respectively, so that they are suitable for use in winter and summer respectively; Suitable for use in different seasons. By changing the angle between the backrest bracket 5 and the base 3, the user's sitting posture can be changed, and the user can also be made to lie down, so as to relieve the fatigue of the user's cervical spine and spine.

Two lifting armrests 4 are arranged on both sides of the backrest bracket 5, so as to realize the supporting effect on human arms. The shown first rotating bracket 8 is rotatably arranged on the front end of the base 3 , the second rotating bracket 9 is rotatably connected with the end of the first rotating bracket 8 , and the arc bracket 10 is rotatably arranged at the end of the second rotating bracket 9 . The first rotating bracket 8 can be rotated from the vertical position to the horizontal position, and can be fixed in the horizontal position; the second rotating bracket 9 can rise with the rotation of the first rotating bracket 8, but the second rotating bracket 9 is always in the horizontal state. In this way, when the first rotating bracket 8 is in the vertical state and the second rotating bracket 9 is in the horizontal state, the user can sit on the office chair and carry out normal office work; when the first rotating bracket 8, the second rotating bracket 9 and the backrest support 5 are all on the same plane with the base 3, and the user can lie down on the seat to achieve the purpose of fully resting the body and mind. As shown in Figure 3, the schematic diagram of the structure when the first rotating bracket 8 and the second rotating bracket 9 are all deployed is provided, and Fig. 3 provides the structural diagram when the first rotating bracket 8 and the second rotating bracket 9 are deployed, as As shown in FIG. 4 , a structural schematic view of the office chair of the utility model when the first rotating bracket, the second rotating bracket and the backrest bracket are all unfolded is given. Among Fig. 1 to Fig. 4, what fit with the human body are all heat-insulating cushions 12 and heat-insulating backrests 14, which are suitable for use in cold seasons in winter. In hot summer, the ventilating backrest 15 can fit the human body by rotating the support rod 6, and the ventilating cushion can fit the human body by turning over the movable cushion 7, which is suitable for use in high temperature summer.

As shown in Figure 6, provide the structural representation of connecting mechanism in the utility model, it comprises beam 18, left support 19, right support 20, universal joint 21, first fixed pin 22, fixed cover 23, the second fixed Pin 24; shown support bar 6 is fixed on the crossbeam 18 by universal joint 21 rotations, left support 19, right support 20 are respectively fixed on the crossbeam 18 at support bar 6 two ends, the first fixed pin 22 realizes left support 19, The fixed connection of right support 20 and support bar 6. The two fixing sleeves 23 are respectively located at the two ends of the beam 18, the fixing sleeves 23 are provided with a cavity matching the end of the beam 18, the fixing sleeves 23 are fixed on the base 3, the beam 18 and the fixing sleeve 23 pass through the second fixing pin 24 is fixed, the crossbeam 18 is provided with a through hole matched with the second fixed pin 24, and the fixed sleeve 23 is provided with a plurality of sets of limit holes 25 matched with the second fixed pin 24; when the backrest bracket 5 drives the crossbeam 18 After rotating around the fixed sleeve 23 to a certain angle, the positioning of the backrest bracket 5 can be realized by inserting the second fixing pin 24 into the through hole 25 and the through hole on the crossbeam 18, so that the backrest bracket 5 and the base The angle between 3 is when.

In the office chair of the utility model, the backrest bracket is connected to the base through a connecting mechanism, the connecting mechanism enables the backrest bracket to rotate around the axis of the support rod and swing relative to the base, and the rotation of the backrest bracket can make different surfaces fit the back of the human body. It is suitable for replacement use in winter and summer; the swing of the backrest bracket makes it form different angles with the base, which is suitable for a variety of human sitting postures, and realizes the staff to sit and work and lie down to rest, which can effectively relieve long-term Fatigue in the cervical spine and spine of the human body while sitting. By arranging the first rotating bracket, the second rotating bracket and the arc-shaped bracket at the front end of the base, it can effectively support the legs of the human body and effectively relieve the fatigue of the lower limbs of the human body. By arranging thermal insulation cushions, thermal insulation backrests, breathable cushions, and breathable backrests, the utility model is suitable for use in both winter and summer.

Claims (4)

1. An office chair with a changeable sitting position, including supporting legs (1), hydraulic lifting rod (2), base (3), two lifting armrests (4) and backrest support (5), the base is supported by the hydraulic lifting rod The legs are fixed, the base supports the human body, and the two lifting armrests are respectively arranged on both sides of the base; the backrest bracket is arranged at the rear end of the base, and the backrest bracket is used to support the back of the human body; it is characterized in that: the backrest bracket is set There is a support rod (6), and the support rod is connected to the base through a connecting mechanism; the connecting mechanism enables the backrest bracket to rotate and position along the axis of the support rod, and enables the backrest bracket to swing back and forth and position relative to the base; the front end of the base is set There are a first rotating bracket (8), a second rotating bracket (9) and an arc-shaped bracket (10). The first rotating bracket is arranged at the front end of the base, and the second rotating bracket is rotationally connected with the end of the first rotating bracket. The bracket is rotatably connected to the second rotating bracket, and support pads (11) are arranged above the first rotating bracket, the second rotating bracket and the arc-shaped bracket. 2. The office chair with a changeable sitting position according to claim 1, characterized in that: the base (3) is provided with a movable cushion (7), and the two surfaces of the movable cushion are respectively provided with thermal insulation cushions (12) and a breathable cushion (13); the two surfaces of the back support (5) are respectively provided with a heat-insulating backrest (14) and a breathable backrest (15). 3. The convertible sitting position office chair according to claim 1 or 2, characterized in that: the connecting mechanism includes a beam (18), a left bracket (19), a right bracket (20), and a universal joint (21) As well as the fixing sleeves (23) located at both ends of the beam, the support rod (6) is rotationally connected with the beam through a universal joint, the left bracket and the right bracket are fixed on the beam, and the left bracket, the support rod and the right bracket are fixed by the first fixing pin ; The two ends of the crossbeam are placed in the internal cavity of the fixed sleeve, the crossbeam and the fixed sleeve are fixed by the second fixed pin (24), and the two ends of the crossbeam are provided with through holes that match the second fixed pin. A plurality of limiting holes (25) are provided, and the fixing sleeve is fixed on the base. 4. The office chair with a changeable sitting position according to claim 1 or 2, characterized in that: the end of the supporting leg (1) is fixed with a universal wheel (17) that facilitates the movement of the entire office chair, and the top of the backrest bracket A headrest (16) is fixed.