The office chair of adjustable armrest and the chair back
Technical field
The utility model belongs to office chair technical field, relates to the office chair of a kind of adjustable armrest and the chair back.
Background technology
Office chair is people's requisite article in routine office work and study, along with the pursuit of people to quality of the life, nowadays the requirement of office chair is not only to design concept handsome in appearance and comfortable, that more need to add some hommizations.In traditional office mode, to employee's concern with humanization still shortcoming slightly in fact, the people of sitting office is complaint often: cervical vertebra ache, shoulder is aching and limp, back is numb, underbelly is more and more outstanding etc.In fact, chase after its reason mostly due to abnormal sitting posture really or in same sitting posture, cause for a long time, this different design that mainly also comes from office chair closes ergonomics.
Current normally used office chair, although kind and pattern are very many, still cannot meet people and in long-term sitting process, change the demand of sitting posture.
Utility model content
The purpose of this utility model is to provide the office chair of a kind of adjustable armrest and the chair back, can change the sitting posture of human body by the position of adjustable handrail and the chair back, eliminates the sense of fatigue producing after human body sitting.
The technical scheme that the utility model adopts is, the office chair of adjustable armrest and the chair back, include office chair body, office chair body includes cushion type air bag seat and the chair back, the bottom of the chair back and described cushion type air bag seat are connected as a single entity by back bracket, the middle part of chair back dual-side is respectively symmetrically arranged with the second handrail connecting plate to bottom, the plate face central authorities of each the second handrail connecting plate are provided with slide groove from top to bottom, in slide groove, be provided with slide block, on slide block, by circular rotating shaft connector, be connected with adjustable handrail unit, the lower surface of cushion type air bag seat is connected with chassis, the bottom on chassis is connected with tiltable balancing device, tiltable balancing device is connected with back bracket, tiltable balancing device lower vertical is connected with atmospheric pressure pole, the lower end of atmospheric pressure pole is socketed with star base.
Feature of the present utility model is also,
Star base includes five legs, is provided with a roller on each leg.
The rear portion of the chair back has been connected by screw back bracket; Back bracket, include two the first elastic supports that vertically arrange, between the top of two the first elastic supports, adopt the 3rd elastic support to connect, adopt the second elastic support connection between the bottom of two the first elastic supports of institute, the second elastic support is connected with one end of tiltable balancing device;
The 3rd elastic support is parallel with the second elastic support;
The second elastic support is vertical with two the first elastic supports.
Tiltable balancing device is semicircular arc support, includes two bows, and one end of a bow is connected with the second elastic support of back bracket, and one end of another bow is connected with the lower surface on chassis, between two bows, by rotating shaft, connects.
Adjustable type armrest unit, include the first handrail connecting plate, on the plate face of the first handrail connecting plate, be provided with handrail slide groove, in handrail slide groove, be provided with slide block, on slide block, be connected with moveable handrails, the first handrail connecting plate is also connected with circular rotating shaft connector by handrail connecting rod.
The beneficial effects of the utility model are:
(1) office chair of adjustable armrest of the present utility model and the chair back can be used in daily office, studying and living, can meet the General Requirements of people to seat, again can be as resting chair;
(2) chair back in the office chair of holding up adjustable armrest and the chair back of the present utility model is designed to the form of human body shoulder blade, makes top the going of human body back have comfort;
(3) handrail in the office chair of adjustable armrest of the present utility model and the chair back is adjustable armrest, operation is very easy for keyboard and mouse for adjustable armrest, adjustable armrest can also inwardly regulate so that for arm provides support, elimination is tired, particularly after long-time typewriting;
(4) in the office chair of adjustable armrest of the present utility model and the chair back, the height of adjustable armrest can be adjusted according to the height of desktop.
Accompanying drawing explanation
Fig. 1 is the structural representation of the office chair of adjustable armrest of the present utility model and the chair back;
Fig. 2 is the side view of the office chair of adjustable armrest of the present utility model and the chair back;
Fig. 3 is the rearview of the chair back in the office chair of adjustable armrest of the present utility model and the chair back;
Fig. 4 is the structural representation of adjustable armrest unit in the office chair of adjustable armrest of the present utility model and the chair back.
In figure, 1. roller, 2. star base, 3. atmospheric pressure pole, 4. rotating shaft, 5. cushion type air bag seat, 6. moveable handrails, 7. the first handrail connecting plate, 8. slide groove, the 9. chair back, 10. handrail slide groove, 11. backrests, 12. circular rotating shaft connectors, 13. first supports, 14. screws, 15. back bracket, 16. chassis, 17. handrail connecting rods, 18. second handrail connecting plates, 19. tiltable balancing devices, 20. second supports.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
The office chair of adjustable armrest of the present utility model and the chair back, its structure as shown in Figures 1 and 2, include office chair body, office chair body includes cushion type air bag seat 5 and the chair back 9, the bottom of the chair back 9 and cushion type air bag seat 5 are connected as a single entity by back bracket 15, the middle part of the chair back 9 dual-sides is respectively symmetrically arranged with the second handrail connecting plate 18 to bottom, the plate face central authorities of each the second handrail connecting plate 18 are provided with slide groove 8 from top to bottom, in slide groove 8, be provided with slide block, on slide block, by circular rotating shaft connector 12, be connected with adjustable handrail unit, the lower surface of cushion type air bag seat 5 is connected with chassis 16, the bottom on chassis 16 is connected with tiltable balancing device 19, tiltable balancing device 19 is connected with back bracket 15, tiltable balancing device 19 lower vertical are connected with atmospheric pressure pole 3, the lower end of atmospheric pressure pole 3 is socketed with star base 2, on each leg of star base 2, be provided with a roller 1.
The rear portion of the chair back 9 is connected with back bracket 15 by screw 14; Back bracket 15 adopts elastomeric material to make, as shown in Figure 3, include two the first elastic supports 13 that vertically arrange, between the top of two the first elastic supports 13, adopt the 3rd elastic support to connect, between the bottom of two the first elastic supports 13, adopt the second elastic support 20 to connect, the second elastic support 20 is connected with one end of tiltable balancing device 19; The 3rd elastic support is parallel with the second elastic support 20; The second elastic support 20 is vertical with two the first elastic supports 13.
Tiltable balancing device 19 is semicircular arc support, as shown in Figure 2, include two bows, one end of a bow is connected with the second elastic support 20 of back bracket 15, one end of another bow is connected with chassis 16, between two bows, by rotating shaft 4, connects.
Adjustable handrail unit, as shown in Figure 1, Figure 2 and shown in Fig. 4, include the first handrail connecting plate 7, on the plate face of the first handrail connecting plate 7, be provided with handrail slide groove 10, in handrail slide groove 10, be provided with slide block, on slide block, being connected with moveable handrails 6, the first handrail connecting plates 7 is also connected with circular rotating shaft connector 12 by handrail connecting rod 17.
Moveable handrails 6 can be laterally, front and back are adjusted, and adjustable handrail unit can be connected in the handrail slide groove 10 of the second handrail connecting plate 18 by slide block 12, carries out front and back rotation, adjustment up and down.
In the office chair of adjustable armrest of the present utility model and the chair back, the chair back 9 makes top very comfortable of going in the back of human body as shoulder blade shape; Moveable handrails 6 is positioned on the first handrail connecting plate 7, and moveable handrails 6 can realize front, rear, left and right along the handrail slide groove 10 of the first handrail connecting plate 7 interior settings by slide block and rotor and slide; Whole adjustable handrail unit carries out forward and backward rotation and upper and lower adjustment on the second handrail connecting plate 18 by circular rotating shaft connector 12; The inclined degree of the chair back 9 can rotate by rotating shaft 4, pulls back bracket 15 to produce, and tiltable balancing device 19 can be assisted back bracket 15, along with the mobile of back bracket 15 drives the chair back 9 generations to tilt.
After sitting down, user can regulate according to self height, sitting posture condition, make the chair back 9 laminating waists, slow down because of the pressure of sitting posture to lumbar vertebrae, user can go to regulate the moveable handrails 6 in adjustable handrail unit by custom, and this operation for keyboard and mouse is very convenient.Moveable handrails 6 can inwardly be adjusted into arm and provides support and eliminate fatigue, especially after long-time typewriting.
The office chair of adjustable armrest of the present utility model and the chair back can carry out to the handrail of office seat and the chair back problem regulating arbitrarily according to different users's motion frequency, reaches and alleviates lumbar vertebrae pressure, for arm provides support and eliminates the object of tired volume.