CN108113289A - Adjustable office chair - Google Patents

Abstract

The invention discloses an adjustable office chair, which comprises a pedal (3), a backrest (2) and a seat (1). The symmetrical sides of the seat (1) are respectively provided with hinge supports, and the legs of the pedal (3) are The upper end and the lower end of the backrest (2) are respectively fixed with hinged shafts (9), and the seat (1) is hinged with the pedal (3) and the backrest (2) respectively; The fixing part (53) on the fixing rod (5) in the mechanism can be snapped into the groove, so that the backrest (2) and the footrest (3) are respectively fixed to the seat (1). Lift the rod (5) so that the fixing part (53) is out of the groove, and the backrest (2) and the pedal (3) can be rotated to change the angle between the backrest (2), the pedal (3) and the seat (1) , so that people can change the included angle according to their own needs, it is especially suitable for office chairs, which can be used for people's lunch breaks, can relieve the pressure on the spine, and reduce fatigue.

Description

adjustable office chair

technical field

The invention discloses an adjustable office chair, which belongs to the field of daily necessities.

Background technique

Chair is widely used in daily life as a kind of seat, and existing chair mainly comprises seat, backrest and armrest, and some chairs also comprise pedal, and the two ends of seat symmetry are respectively fixedly connected with backrest and footrest, and armrest is arranged on On both sides of the seat, this structure makes it impossible for people to change the angle between the backrest and the footrest and the seat, so that the chair can only sit but not lie down. For some office workers, due to the short lunch break, there is no time to go home for a lunch break at all, and they can only take a nap in the office before joining the afternoon work. The structure of the existing office chairs is also relatively fixed. You can only sit on the chair and lie down on the chair for a lunch break. Sitting for a long time will cause certain damage to people's spine. The existing chairs cannot relieve it. It will deform the spine and cause serious damage to the spine. At the same time, being unable to lie down and rest at noon will also increase people's fatigue, resulting in inefficient work in the afternoon.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an adjustable office chair which can change the shape of the chair for sitting and lying down.

The technical solution adopted by the present invention to solve the technical problem is: an adjustable office chair, including a footrest, a backrest and a seat seat, hinge supports are respectively arranged on both symmetrical sides of the seat seat, and the upper end of the footrest and the lower end of the backrest are fixed respectively. There are hinge shafts, and the seat base is respectively hinged with the footrest and the backrest; it also includes a locking mechanism arranged at the hinge, the locking mechanism includes a fixed rod, an elastic member, a groove and a fixed rod seat, and the fixed rod seat is directly fixed with the seat seat connected, and provided with a counterbore; the fixed rod includes a fixed part, a connecting part and a stretching part, one end of the connecting part is connected to the fixed part, the other end passes through the counterbore and extends to the outside of the fixed rod seat, and then connects to the stretching part, The fixed part can slide in the large end of the counterbore; the elastic part is sleeved on the outside of the connecting part, the lower end of the elastic part is in contact with the connecting end surface of the fixed part, and the upper end is in contact with the wall of the counterbore; the groove is arranged on the outer wall of the hinge shaft and connected with the fixed Fit the part so that the fixed part can snap into the groove.

Wherein, the hinge shaft in the above-mentioned device is provided with a gear-shaped clamping piece, and the fixing part can be directly clamped into the groove on the clamping piece.

Wherein, the elastic member in the above device is a spring.

Wherein, the upper end of the fixed rod seat in the above device is provided with a guide hole, the connecting end of the stretching part is provided with a guide rod, and the guide rod is inserted into the guide hole.

Wherein, the lower end surface of the fixing part in the above device is an inclined surface.

The beneficial effects of the invention are: the device has simple structure, easy operation and low manufacturing cost. When the present invention is used in practice, only the fixed rod is lifted, so that the fixed part is out of the groove, and the backrest and the footrest can be rotated to change the angle between the backrest, the footrest and the seat, so that people can change the angle according to their own needs , can realize the functions of sitting and lying on the same chair. Especially suitable for office chairs, it can be used for people to take a lunch break, which can relieve the pressure on the spine and reduce fatigue.

Description of drawings

Fig. 1 is a kind of structural representation of the present invention;

Fig. 2 is another kind of structural representation of the present invention;

Fig. 3 is that the present invention is the enlarged schematic view of structure at I place in Fig. 1;

Fig. 4 is the structure schematic diagram of locking mechanism of the present invention;

Fig. 5 is a schematic diagram of the structure of A-A in Fig. 4 of the present invention.

The marks in the figure are: 1 is the seat, 2 is the backrest, 3 is the pedal, 4 is the fixed rod seat, 41 is the guide hole, 5 is the fixed rod, 51 is the stretching part, 52 is the connecting part, 53 is the fixed part , 6 is an elastic member, 7 is a clip, 8 is a guide rod, and 9 is a hinge shaft.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 5, the adjustable office chair of the present invention includes a pedal 3, a backrest 2 and a seat 1, and the symmetrical sides of the seat 1 are respectively provided with hinge supports, and the upper end of the pedal 3 and the backrest 2 The lower ends of the seat are respectively fixed with hinge shafts 9, the seat 1 is respectively hinged with the pedal 3 and the backrest 2; it also includes a locking mechanism arranged at the hinge, and the locking mechanism includes a fixed rod 5, an elastic member 6, a groove and a fixed Rod base 4, fixed rod base 4 is directly fixedly connected with seat base 1, and is provided with counterbore; Fixed rod 5 comprises fixed part 53, connecting part 52 and stretching part 51, and one end of connecting part 52 is connected with fixed part 53, and another One end passes through the counterbore and extends to the outside of the fixed rod seat 4, and then connects with the stretching part 51, so that the fixed part 53 can slide in the large end of the counterbore; the elastic part 6 is sleeved on the outside of the connecting part 52, and the lower end of the elastic part 6 is connected to the fixed part. Part 53 is in contact with the end surface, and the upper end is in contact with the wall of the counterbore; the groove is arranged on the outer wall of the hinge shaft 9 and adapted to the fixing part 53, so that the fixing part 53 can be snapped into the groove. Those skilled in the art can understand that the device is provided with a hinge support at both ends of the seat 1 symmetry, and one end of the backrest 2 and the pedal 3 is provided with a hinge shaft 9, so that the backrest 2 and the pedal 3 are respectively connected to the chair seat. 1 is hinged, and a locking mechanism is further provided at the hinge, so that the backrest 2 and the footrest 3 cannot rotate freely with the seat 1, and the angle between the backrest 2, the footrest 3 and the seat 1 can be controlled by the locking mechanism , to achieve the adjustable chair. The locking mechanism further includes a fixed rod 5, an elastic member 6, a groove and a fixed rod base 4, the fixed rod base 4 is directly fixedly connected with the seat base 1, and the fixed rod base 4 is provided with a counterbore with a large end and a small end, The fixed rod 5 includes a fixed part 53, a connecting part 52 and a stretching part 51. The fixed rod 5 should be a structure with two ends large and a small middle. It is further preferred that the fixed part 53 is adapted to the large end of the counterbore, and the fixed part 53 can fit in the hole. Sliding, one end of the connecting part 52 is connected with a fixed part 53, and the other end passes through the small end from the large end and extends to the outside of the hole to connect with the stretching part 51, while the elastic member 6 is sleeved on the outside of the connecting part 52, and the spring The two ends are in contact with the fixing part 53 and the bottom of the big end of the counterbore respectively, and the counterbore is arranged on the hinge shaft 9 , and the fixing part 53 can be directly snapped into the groove on the hinge shaft 9 . In actual use, only the fixed rod 5 needs to be lifted so that the fixed part 53 is out of the groove, and the backrest 2 and the footrest 3 can be rotated to change the angle between the backrest 2, the footrest 3 and the seat 1, so that people can adjust the angle according to their own needs. It is necessary to change the included angle to be able to realize the functions of sitting and lying on the same chair. Especially suitable for office chairs, it can be used for people to take a lunch break, which can relieve the pressure on the spine and reduce fatigue.

Preferably, the hinge shaft 9 is provided with a gear-shaped clip 7 , and the fixing part 53 can be directly snapped into a groove on the clip 7 . Those skilled in the art can understand that, since this device controls the rotation of the backrest 2 and the pedal 3 and the seat 1 through the clamping of the fixing part 53 and the groove, and the groove is arranged on the hinge shaft 9, the hinge shaft 9 It is also rotatably connected with the hinge bearing on the seat 1. In actual use, the force on the fixing part 53 and the groove will be relatively large. This device is only further preferably provided with a gear-shaped clamping part 7 on the hinge shaft 9, and it is also preferable that the clamping part 7 is in the shape of a spline shaft. structure, the fixed part 53 can be directly snapped into the groove on the clip 7, so that the fixed part 53 can be directly clipped into the groove on the clip 7 without direct contact with the hinge shaft 9, which can effectively reduce the size of the fixed part 53. The impact with the hinge shaft 9 can also reduce the wear of the hinge shaft 9 .

Preferably, the elastic member 6 is a spring. Those skilled in the art can understand that this device is further preferably provided with the elastic member 6 as a spring, and the spring is directly sleeved on the outside of the connecting part 52, so that when people lift the stretching part 51, it is ensured that the connecting part 52 moves along the inner wall of the counterbore. When sliding and putting down the stretching part 51, the fixing part 53 will snap the fixing part 53 into the groove under the action of the spring force to prevent the hinge shaft 9 from rotating so as to fix the angle between the backrest 2, the pedal 3 and the seat 1.

Preferably, the upper end of the fixed rod base 4 is provided with a guide hole 41 , the connecting end of the stretching part 51 is provided with a guide rod 8 , and the guide rod 8 is inserted into the guide hole 41 . Those skilled in the art can understand that, in order to make the force on the elastic member 6 more uniform, so that when the stretching part 51 is pulled, the fixing part 53 and the connecting part 52 only move axially. The upper end of the upper end is provided with a guide hole 41, and the connecting end of the stretching part 51 is provided with a guide rod 8, and the guide rod 8 is inserted into the guide hole 41. The fixed rod 5 is only moved along the axis, and the force on the elastic member 6 is uniform, so that the service life is prolonged, and people exert less force when pulling.

Preferably, the lower end surface of the fixing portion 53 is an inclined surface. Those skilled in the art can understand that, because the angle between the backrest 2 and the footrest 3 is changed with the seat 1 when the backrest 2 and the footrest 3 are rotated, and the backrest 2 and the footrest 3 mainly play the role of support, the left side wall in the groove will Apply force to the fixed part 53, the device further preferably has a lower end of the fixed part 53 as an inclined surface, so that the bottom of the fixed part 53 towards the inclined side directly contacts the bottom of the groove, so that the active area is smaller and the force is larger , the fixed part 53 is not easy to break away from the groove, and the inclined surface can reduce the contact between the two side walls of the groove and the fixed part 53 when the backrest 2 and the footrest 3 are rotated upwards, which can reduce friction and make the upward rotation easier. smoothly.

Claims (5)

1. An adjustable office chair, including a footrest (3), a backrest (2) and a seat (1), is characterized in that: the symmetrical sides of the seat (1) are respectively provided with hinge supports, and the footrest (3) The upper end and the lower end of the backrest (2) are respectively fixed with hinge shafts (9), and the seat (1) is hinged with the pedal (3) and the backrest (2) respectively; The mechanism includes a fixed rod (5), an elastic member (6), a groove and a fixed rod base (4), the fixed rod base (4) is directly fixedly connected with the seat base (1), and is provided with a counterbore; the fixed rod (5 ) includes a fixed part (53), a connecting part (52) and a stretching part (51), one end of the connecting part (52) is connected with the fixed part (53), and the other end passes through the counterbore and extends to the fixed rod seat (4) Outside, connect with stretching part (51) again, make fixed part (53) slide in the big end of counterbore; 53) The connection end surface is in contact, and the upper end is in contact with the counterbore wall; the groove is arranged on the outer wall of the hinge shaft (9) and adapted to the fixing part (53), so that the fixing part (53) can be snapped into the groove. 2. The adjustable office chair according to claim 1, characterized in that: the hinge shaft (9) is provided with a gear-shaped clip (7), and the fixed part (53) can be directly clipped into the clip (7) ) in the groove on the 3. The adjustable office chair according to claim 1, characterized in that: the elastic member (6) is a spring. 4. The adjustable office chair according to claim 1, characterized in that: the upper end of the fixed rod seat (4) is provided with a guide hole (41), and the connecting end of the stretching part (51) is provided with a guide rod (8 ), and the guide rod (8) is inserted into the guide hole (41). 5. The adjustable office chair according to any one of claims 1 to 4, characterized in that: the lower end surface of the fixing part (53) is an inclined surface.