CN221129343U - Office chair with line-controlled self-loading chassis capable of lying flat - Google Patents

Abstract

The utility model provides an office chair that can lie flat with a wire-controlled self-load-bearing chassis, and specifically relates to the technical field of office furniture. An office chair that can lie flat with a wire-controlled self-load-bearing chassis, comprises a base, a chassis is fixedly arranged at the bottom of the base, the chassis is fixed to the backrest through a link plate, the link plate is fixed on the spline shaft, the backrest comprises a frame and a support column, a lifting slide is arranged on the frame, a headrest is arranged on the top of the frame, a fixed slot is arranged on the support column, and an armrest and a sponge wheel are arranged on the lifting slide. The beneficial effects of the utility model are: the support arm and the rotating arm of the utility model can both rotate, and can be adjusted up and down and locked when installed on the office chair, can be rotated to adjust and lock, and can be folded to adjust and lock. The core chassis of the office chair has been innovated, and the high-end chassis can realize the function of lying flat, and has a self-load-bearing function. A cam lock mechanism that can adjust and lock the sponge wheel up and down is arranged on the lower part of the backrest.

Description

Office chair with line-controlled self-loading chassis capable of lying flat

Technical Field

The utility model mainly relates to the technical field of office furniture, in particular to an office chair with a line-control self-loading chassis capable of lying flat.

Background

Office chairs are various chairs which are arranged for convenience in daily work and social activities, and the comfort level of personnel during work is determined by the quality of the office chairs.

The existing office chair armrest structure cannot be used for angle adjustment, the office chair with the chassis capable of lying does not have the wire control function and the problem of unstable structure, the problem of easy breakage and the like after long-term use, the high-end chassis with the wire control function does not have the 180-degree flat lying function, and the office chair with the wire control self-loading chassis can feel uncomfortable easily after sitting for a long time to generate fatigue of the waist and other parts, and can only stand up to move without being relaxed well, so the office chair with the wire control self-loading chassis capable of lying can be provided.

Disclosure of utility model

In order to solve the defects in the prior art, the office chair is innovated in a backrest structure based on the original body-building office chair, and the utility model provides the office chair with the wire-controlled self-loading chassis, which can lie flat.

The utility model aims to achieve the aim, and the aim is achieved by the following technical scheme:

The utility model provides an office chair that can lie flat area drive-by-wire is from load chassis, includes the base, the fixed chassis that is provided with in base bottom, the fixed fixing device that is provided with in chassis below, fixing device passes through the link plate and is fixed with the back, the link plate is fixed on the integral key shaft, the back includes frame and support column, be provided with the lift spout on the frame, the frame top is provided with the headrest, be provided with the fixed slot on the support column, be provided with handrail and sponge wheel on the lift spout, the sponge wheel has the multilayer, two-layer fixing on the fixed slot of support column through cam lock mechanism in sponge wheel bottom, the base below is provided with the pneumatic rod, the pneumatic rod is fixed on five stars foot.

The fixing device comprises a shell, a fixed side plate, a sliding rod, a telescopic spring, a fixed block, an adjusting device and a bottom fixing plate, wherein a restraining groove for restraining the sliding rod is formed in the fixed side plate, the telescopic spring is sleeved on the moving device, the fixed block and the adjusting device are fixed on the bottom fixing plate, the moving device is connected with the moving rod, and a long oval groove for enabling the sliding rod to move is formed in the shell.

Cams are respectively arranged at two ends of the spline shaft.

The handrail comprises a rotary buckle, a lifting rod, a rotary gear, a fixed switch, a supporting arm and a rotary arm, wherein the number of the rotary gears is two, the lifting rod and the supporting arm can rotate through the rotary gear, and the rotary buckle can lock the rotation of the supporting arm and the rotation arm.

The adjusting device comprises an adjusting rod, a gear transmission group, a clamping block and a screw.

The backrest drives the spline shaft to rotate, and when the backrest drives the cam to rotate, the sliding rod can be pushed to enable the telescopic spring to stretch, and the backrest can be rotated backwards to lie flat.

The two layers at the bottom of the sponge wheel can be adjusted in a lifting manner through a cam lock mechanism.

And an ornament is arranged behind the support column.

Compared with the prior art, the utility model has the beneficial effects that:

1. The utility model solves the problem of universal adjustment of any angle of the armrest, the supporting arm and the rotating arm can rotate, can be arranged on an office chair to be adjusted up and down and locked, can be adjusted and locked in a rotating way and can be adjusted and locked in a folding way, and the armrest has a modularized quick-connection function and can be externally connected with a mobile phone bracket, a flat plate bracket and the like after being unfolded.

2. According to the utility model, after the advantages and disadvantages of various existing office chair chassis are integrated, innovation of the office chair core chassis is performed, the function that the high-end chassis can lie flat at 180 degrees is realized, and the self-loading function is realized.

3. The backrest adopts a structure of a frame and a sponge wheel, and the lower part of the backrest is provided with a cam lock mechanism which can enable the sponge wheel to be adjusted and locked up and down, so that the backrest can better support the waist through adjustment and is suitable for users with different heights.

Drawings

FIG. 1 is a side view of the present utility model;

FIG. 2 is a schematic perspective view of the present utility model;

FIG. 3 is a front view of the present utility model;

FIG. 4 is a schematic view of the internal structure of the base of the present utility model;

FIG. 5 is a schematic view of a portion of the structure of the present utility model;

FIG. 6 is a schematic diagram of a portion of the structure of the second embodiment of the present utility model.

The reference numbers shown in the drawings: 1. a base; 2. a chassis; 3. a fixing device; 4. a link plate; 5. a backrest; 6. a spline shaft; 7. a frame; 8. a support column; 9. lifting sliding grooves; 10. a headrest; 11. a fixing slot; 12. an armrest; 13. a sponge wheel; 14. a cam lock mechanism; 15. a pneumatic rod; 16. five star feet; 17. a housing; 18. fixing the side plates; 19. a slide bar; 20. a telescopic spring; 21. a fixed block; 22. an adjusting device; 23. a bottom fixing piece; 24. a restraining groove; 25. a mobile device; 26. a moving rod; 27. a cam; 28. a rotary buckle; 29. a lifting rod; 30. rotating the gear; 31. a fixed switch; 32. a support arm; 33. a rotating arm; 34. and (5) an ornament.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it will be understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the utility model, and equivalents thereof fall within the scope of the utility model as defined by the claims.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of the parts adopt conventional means such as mature bolts, rivets, welding, pasting and the like in the prior art, and meanwhile, in order to clearly express the connection relation and working principle among the components, the drawings of the specification are arranged and drawn in a mode of a mechanism motion diagram, and are not described in detail.

As shown in fig. 1-6, an office chair with a wire-controlled self-loading chassis capable of lying flat comprises a base 1, wherein a chassis 2 is fixedly arranged at the bottom of the base 1, a fixing device 3 is fixedly arranged below the chassis 2, the fixing device 3 is fixed with a backrest 5 through a link plate 4, the link plate 4 is fixed on a spline shaft 6, the backrest 5 comprises a frame 7 and a support column 8, a lifting chute 9 is arranged on the frame 7, a headrest 10 is arranged at the top of the frame 7, a fixing clamping groove 11 is arranged on the support column 8, a handrail 12 and a sponge wheel 13 are arranged on the lifting chute 9, the sponge wheel 13 is provided with multiple layers, two layers of bottoms of the sponge wheel 13 are fixed on the fixing clamping groove 11 of the support column 8 through a cam lock mechanism 14, a pneumatic rod 15 is arranged below the base 1, and the pneumatic rod 15 is fixed on a five-star foot 16.

The fixing device 3 comprises a shell 17, a fixed side plate 18, a sliding rod 19, a telescopic spring 20, a fixed block 21, an adjusting device 22 and a bottom fixing plate 23, wherein a constraint groove 24 for constraining the sliding rod 19 is formed in the fixed side plate 18, the telescopic spring 20 is sleeved on a moving device 25, the fixed block 21 and the adjusting device 22 are fixed on the bottom fixing plate 23, the moving device 25 is connected with a moving rod 26, and a long elliptic groove for enabling the sliding rod 19 to move is formed in the shell 17.

The two ends of the spline shaft 6 are respectively provided with a cam 27, the cams are connected with the spline shaft, and the spline shaft can drive the cams to rotate so as to push the movable rod compression spring to move forwards, so that the linear movement process of the backrest rotating backwards is realized.

The armrest 12 includes a rotation buckle 28, a lifting lever 29, a rotation gear 30, a fixed switch 31, a support arm 32 and a rotation arm 33, wherein the rotation gear 30 is provided with two rotation gears, the lifting lever 29 and the support arm 32 can rotate through the rotation gear 30, and the rotation buckle 28 can lock the rotation of the support arm 32 and the rotation arm 33.

Further, when the backrest 5 drives the spline shaft 6 to rotate, the cam is driven to rotate, so that the sliding rod 19 can be pushed, the telescopic spring 20 can be further telescopic, and the backrest 5 can be rotated backwards for 90 degrees to realize lying.

Further, the two layers at the bottom of the sponge wheel 13 can be adjusted in a lifting manner through the cam lock mechanism 14, and the position of the two layers of sponge wheels at the bottom can be adjusted by adjusting the cam lock mechanism with the bottom arranged in the fixed clamping groove, so that the cam lock mechanism can drive the two layers of sponge wheels at the bottom to move up and down in the fixed clamping groove, and the position adjustment is realized.

Preferably, the ornament 34 is arranged behind the support column 8, so that the artistic quality of the seat is improved, and the seat is quite aesthetic.

Working principle:

Through designing fixing device, back link plate both sides are connected with the cooperation of integral key shaft both ends, and the other end is connected with the back, and the back leans back is rotatory through the integral key shaft drive cam on the connecting plate when leaning back and is pushed the slide bar and move compression expansion spring forward, and the back bottom is provided with fixing device, for the rotatory limit structure of back, can reach spacing position after rotatory to the position of lying.

The rotary buckle and the lifting rod are arranged, the rotary buckle has the function of loosening and tightening the lifting rod, so that the lifting rod can drive the armrest to move up and down in the lifting chute of the backrest, the height of the armrest is adjusted, the lifting rod and the supporting arm are respectively linked through the rotary buckle, and the supporting arm and the rotating arm can rotate and can be folded to adjust and lock.

The lower part of the backrest is provided with a cam lock mechanism which can enable the sponge wheel to be adjusted and locked up and down, the cam lock and the fixing clamping groove are mutually matched, the upper two layers of sponge wheels are directly fixed on the supporting column, and the lower two layers of sponge wheels can adjust the height of the bottom two layers of sponge wheels through the cam lock mechanism.

Claims (5)

1. The utility model provides an office chair that can lie flat area drive-by-wire is from load chassis, includes base (1), its characterized in that, base (1) bottom is fixed to be provided with chassis (2), chassis (2) below is fixed to be provided with fixing device (3), fixing device (3) are fixed with back (5) through link plate (4), link plate (4) are fixed on integral key shaft (6), back (5) include frame (7) and support column (8), be provided with lift spout (9) on frame (7), frame (7) top is provided with headrest (10), be provided with fixed draw-in groove (11) on support column (8), be provided with handrail (12) and sponge wheel (13) on lift spout (9), sponge wheel (13) have the multilayer, two-layer fixed on fixed draw-in groove (11) of support column (8) through cam lock mechanism (14) in the bottom sponge wheel (13), base (1) below is provided with pneumatic rod (15), pneumatic rod (15) are fixed on five stars (16);

The fixing device (3) comprises a shell (17), a fixing side plate (18), a sliding rod (19), a telescopic spring (20), a fixing block (21), an adjusting device (22) and a bottom fixing piece (23), wherein a constraint groove (24) for constraining the sliding rod (19) is formed in the fixing side plate (18), the telescopic spring (20) is sleeved on a moving device (25), the fixing block (21) and the adjusting device (22) are fixed on the bottom fixing piece (23), the moving device (25) is connected with the moving rod (26), and a long oval groove for enabling the sliding rod (19) to move is formed in the shell (17);

cams (27) are respectively arranged at two ends of the spline shaft (6);

The handrail (12) comprises a rotary buckle (28), a lifting rod (29), a rotary gear (30), a fixed switch (31), a supporting arm (32) and a rotary arm (33), wherein the number of the rotary gears (30) is two, the lifting rod (29) and the supporting arm (32) can rotate through the rotary gears (30), and the rotary buckle (28) can lock the rotation of the supporting arm (32) and the rotary arm (33).

2. Office chair with a drive-by-wire self-loading chassis according to claim 1, wherein the adjusting means (22) comprises an adjusting lever (221), a gear drive set (222), a clamping block (223) and a screw (224).

3. The office chair with the wire-controlled self-loading chassis capable of lying down according to claim 1, wherein the backrest (5) drives the spline shaft (6) to rotate, and the cam is driven to rotate to push the sliding rod (19) so as to enable the telescopic spring (20) to stretch, and the backrest (5) can rotate backwards for 90 degrees to realize lying down.

4. Office chair with a drive-by-wire self-loading chassis according to claim 1, characterized in that the two bottom layers of the sponge wheels (13) are liftable and adjustable by means of cam lock mechanisms (14).

5. Office chair with a drive-by-wire self-loading chassis according to claim 1, characterized in that the support column (8) is provided with decorations (34) at the rear.