CN219661263U - Novel office chair - Google Patents

Abstract

The utility model relates to the technical field of office chairs, in particular to a novel office chair, which comprises a back assembly, an armrest assembly, a supporting assembly, a base mechanism and a seat cushion, wherein the base mechanism is fixedly connected to the top of the supporting assembly, and the seat cushion is fixedly connected to the top of the base mechanism; the armrest assembly comprises an armrest frame which is U-shaped, the main body of the armrest frame is fixedly connected with the base mechanism, the two ends of the armrest frame are respectively positioned at the two sides of the seat cushion, and the two ends of the armrest frame are fixedly connected with armrests; the back assembly comprises a backrest and a headrest, the side surface of the armrest frame is connected with the backrest through a structure B, and the top of the backrest is provided with the headrest; the problem that the distance between the back and the seat cushion is larger when the back leans backwards is solved, so that comfort level is guaranteed due to the fact that the distance between the back and the seat cushion is larger when the back leans backwards, and the problem that arm support comfort level is affected due to the fact that the distance between the back and the arm rest is longer when the angle of the back and the arm rest becomes larger when the back leans backwards is solved through the integrated design of the back and the arm rest.

Description

Novel office chair

Technical Field

The utility model relates to the technical field of office chairs, in particular to a novel office chair.

Background

The office chair is furniture used by workers or learners, and the conventional office chair accessories in the market comprise a backrest, a seat cushion, armrests, lifting air rods, a base mechanism, five-star feet and casters, and the chair is mainly assembled in two modes. First kind: the armrests are connected with the seat cushion and the backrest, and the backrest is fixed on the seat cushion; the second type, the seat cushion and the backrest are fixed on the base mechanism, and the armrests are fixed on the seat cushion, and the chair is characterized in that the backrest can be independently tilted; such chairs have a reclined back, which is functionally advantageous over the first, but also has some problems.

For example: the larger the angle of the backrest is, the larger the distance between the lower part of the backrest and the back of the seat cushion is, so that the lumbar support is weakened, in addition, the larger the angle of the backrest is, the longer the distance between the backrest and the armrests is, so that the comfort level of arm support is affected, and the novel office chair is provided by combining the problems.

Disclosure of Invention

The utility model aims to solve the defects of the prior art, and provides a novel office chair, which adopts the following technical scheme: a novel office chair comprises a back assembly, a handrail assembly, a supporting assembly, a base mechanism and a seat cushion, wherein the base mechanism is fixedly connected to the top of the supporting assembly, and the seat cushion is fixedly connected to the top of the base mechanism;

the armrest assembly comprises an armrest frame, the armrest frame is U-shaped, the main body of the armrest frame is fixedly connected with the base mechanism, the two ends of the armrest frame are respectively positioned at the two sides of the seat cushion, and the two ends of the armrest frame are fixedly connected with armrests;

the backrest assembly comprises a backrest and a headrest, the side face of the armrest frame is connected with the backrest through a structure B, and the headrest is arranged at the top of the backrest;

the structure B comprises a fixing part fixedly connected with a backrest, a backrest fixing screw, a backrest return spring, a backrest locking buckle return spring, a backrest locking knob, a backrest rotary button and a backrest knob outer cover, wherein a locking port is formed in the side face of the fixing part, the backrest fixing screw is used for fixing the connecting part of the backrest and the armrest frame in an axial direction, the backrest and the armrest frame can rotate relatively along the axial direction of the backrest fixing screw, the backrest return spring is located between the connecting part of the backrest and the armrest frame, two torsion feet of the backrest return spring are respectively fixed with the fixing part and the armrest frame, the backrest locking buckle is connected with the inner side of the connecting part of the armrest frame in a sliding mode, the backrest locking buckle is located between the inner side of the connecting part of the backrest locking buckle and the backrest rotary button, the backrest locking buckle has a trend of sliding towards the backrest direction, one side fixedly connected with the backrest rotary button on the inner side of the connecting part of the armrest frame, one end of the backrest rotary button close to the backrest is provided with three groups of clamping feet, the backrest locking knob is located between the three groups of clamping feet, the outer side face of the backrest locking buckle is provided with the buckle, the backrest locking buckle is provided with a cam groove inside the backrest locking knob, one end of the backrest locking buckle is connected with the knob, and one end of the knob is connected with the rotary button.

As a further description of the above technical solution:

the supporting component comprises a lifting air rod, five-star feet and casters, wherein the casters are respectively fixed at the five feet of the five-star feet, and the bottom end of the lifting air rod is fixed with the five-star feet.

As a further description of the above technical solution:

the top of the base mechanism is provided with a supporting frame, and the bottom shell of the seat cushion is in sliding connection with the supporting frame through a mounting screw;

still including adjusting hand, spring, fixture block, adjust the drain pan rotation of hand and seatpad and be connected, spring, fixture block are all fixed with the top of adjusting the hand, and spring, fixture block are located the both sides of adjusting the drain pan junction of hand and seatpad respectively, the bottom of support frame is provided with the bayonet socket that a plurality of equidistance distributes, and the bayonet socket corresponds with the fixture block.

As a further description of the above technical solution:

the headrest comprises a headrest body, a support and a fixing piece, wherein the support is L-shaped, one end of the support is fixed with the back of the headrest body, the fixing piece is fixedly connected with the backrest, and the support is fixedly connected with the fixing piece.

As a further description of the above technical solution:

the support and the fixing piece can be slidably adjusted.

As a further description of the above technical solution:

the armrests and the armrests frame can be adjusted in an up-and-down sliding mode.

As a further description of the above technical solution:

the middle part of back is provided with back auxiliary stay spare.

The utility model has the following beneficial effects:

1. compared with the prior art, the novel office chair is characterized in that the armrest frame, the armrests and the backrest are arranged and are fixedly connected with each other in a rotatable and adjustable manner; firstly, when the backrest leans back, the distance between the armrest and the backrest can be always kept the same; and secondly, one end of the back, which is used as a rotation center, is fixed through ingenious structural design, so that the back can be tilted at a fixed angle, and the back can rotate along the joint of the armrest frame and the backrest, so that the distance between the bottom of the back and the rear part of the seat cushion is shortened when the back is tilted, the effect of being more attached to the waist is achieved, and the use is more comfortable.

2. Compared with the prior art, the novel office chair has the advantages that the seat cushion and the base mechanism can be adjusted back and forth (namely, the armrests and the seat cushion can be adjusted back and forth), the armrests and the armrests frame can be adjusted up and down, and the backrest can be adjusted in a rotating manner along the connecting shaft relative to the armrests, so that the freedom degree of the positions of the armrests is higher, and the novel office chair is more comfortable to use.

Drawings

Fig. 1 is a perspective view of a novel office chair according to the present utility model;

FIG. 2 is a front view of a new office chair according to the present utility model;

FIG. 3 is a side view of a new office chair according to the present utility model;

FIG. 4 is a perspective view of a backrest and headrest of a new office chair according to the present utility model;

FIG. 5 is a diagram of a base unit of a novel office chair according to the present utility model;

FIG. 6 is a second view of a base mechanism of a new office chair according to the present utility model;

FIG. 7 is an enlarged view of FIG. 6 at A;

FIG. 8 is a schematic view showing the connection of a backrest and a armrest frame of a novel office chair according to the present utility model;

fig. 9 is an enlarged view at B in fig. 8.

Wherein the backrest and the cushion in the headrest of fig. 1-4 are not shown.

Legend description:

1. five star feet; 2. casters; 3. lifting the air rod; 4. a base mechanism; 5. a seat cushion; 6. a handrail frame; 7. an armrest; 8. a backrest; 9. a headrest; 91. a headrest body; 92. a bracket; 93. a fixing member; 10. a back auxiliary support; 11. installing a screw; 12. a support frame; 13. adjusting the hand; 14. a spring; 15. a bayonet; 16. a clamping block; 17. a fixing part; 18. a locking port; 19. a back return spring; 20. a back locking knob; 21. cam grooves; 22. back fixing screws; 23. a back locking buckle; 24. back-rotating buttons; 25. a clamping foot; 26. a back knob outer cover; 27. back locking buckle return spring.

Detailed Description

Referring to fig. 1-7, the present utility model provides a novel office chair: including back of body subassembly, handrail subassembly, supporting component, base mechanism 4, seatpad 5, base mechanism 4 fixed connection is at the top of supporting component, and seatpad 5 fixed connection is at the top of base mechanism 4, and supporting component cooperation base mechanism 4 supports seatpad 5 and is in suitable height for the user uses, and it still includes: the armrest frame 6, the armrest frame 6 is U-shaped, its main part and base unit 4 fixed connection, according to the seat habit, the armrest frame 6 should be close to the rear end of base unit 4, both ends are located the both sides of seatpad 5 respectively, and the both ends of armrest frame 6 all fixedly connected with handrail 7, and the both positions of armrest frame 6 should be suitable, and when the user sits on seatpad 5, hand and arm part can take handrail 7 above armrest frame 6.

Referring to fig. 1-3 and 8-9, the back assembly includes a back rest 8 and a headrest 9, the side of the armrest frame 6 is connected to the back rest 8 through a structure B, and the headrest 9 is disposed on top of the back rest 8.

Specifically, structure B includes: the side of the fixing part 17 is provided with a locking opening 18, the back fixing screw 22 axially fixes the connecting part of the back 8 and the armrest frame 6, so that the back 8 and the armrest frame 6 can relatively rotate along the axial direction of the back fixing screw 22, the fixing screw 22 specifically penetrates through a through hole on the connecting part of the armrest frame 6 and then is in threaded connection with the back 8, the end part of the fixing screw 22 limits the back 8 and the armrest frame 6 to axially slide, the back return spring 19 is positioned between the connecting part of the back 8 and the armrest frame 6, and two torsion legs of the back return spring 19 are respectively fixed with the fixing part 17 and the armrest frame 6, so that when the back 8 and the armrest frame 6 relatively rotate, the elastic force of the return spring 19 needs to be overcome, particularly, when a user backs the backrest 8, the backrest is elastically rotated, when the user rises, the elastic force can assist the rising, the backrest is more comfortable to use, the inner side of the connecting part of the armrest frame 6 is slidably connected with the back locking buckle 23, the back locking buckle return spring 27 is positioned between the back locking buckle 23 and the inner side of the connecting part of the back rotary button 24, the back locking buckle 23 has a trend of sliding towards the backrest 8, under the condition of no external force interference, the back locking buckle return spring 27 drives the back locking buckle 23 to axially slide and can slide into the locking opening 18, the relative rotation between the backrest 8 and the armrest frame 6 is limited, namely, when the office chair is in a normal office state, the backrest 8 and the armrest frame 6 can be fixed, and when the office chair is notable, the position of the locking opening 18 is opened, the relative position of the fixed state of the backrest 8 and the armrest frame 6 can be determined, a plurality of locking openings 18 can be arranged in the circumferential direction of the fixed part 17 in consideration of different use habits of different people, adjustment of a plurality of angles is achieved, the armrest frame is more comfortable to use, the back-rotating button 24 is fixedly connected to one side, which is far away from the backrest 8, of the inner side of the connecting part of the armrest frame 6, three groups of clamping feet 25 are arranged at one end, which is close to the backrest 8, of the back-rotating button 24, annular installation space is formed in the middle, the back locking knob 20 is arranged between the three groups of clamping feet 25, protruding parts at the ends of the three groups of clamping feet 25 can limit the back locking knob 20 to axially slide, a cam groove 21 is arranged at the outer side of the back locking knob 20, one end of the back locking buckle 23 is provided with a protruding block positioned in the cam groove 21, when the cam groove 21 rotates, the back locking buckle 23 can be driven to axially slide, the elastic force of the back locking buckle 23 is overcome, the back locking buckle 23 is separated from the locking opening 18, the backrest 8 and the armrest frame 6 can rotate by an adjusting angle, the back locking knob 26 is connected with the back button 24 in a movable mode, the back button 24 is connected with the back button 24 through the outer cover 26, and the back locking knob 20 is rotated, or the back locking knob 20 is controlled to rotate, and one end of the back locking knob 20 is locked by the outer cover is controlled to rotate.

Referring to fig. 3, in an embodiment, the supporting component includes a lifting air bar 3, five-star legs 1, and casters 2, wherein the casters 2 have five feet and are respectively fixed at the five feet of the five-star legs 1, and the bottom end of the lifting air bar 3 is fixed with the five-star legs 1.

The whole seat can be moved by utilizing the casters 2 at the five feet of the five-star foot 1, so that a user can conveniently move the seat on the flat ground for a short distance, the lifting air rod 3 has a buffer function, the use is more comfortable, the lifting function of the lifting air rod 3 can be used for adjusting the heights of the base mechanism 4 and the seat cushion 5, and the seat is suitable for people with different heights.

Referring to fig. 5-7, in an embodiment, the top of the base unit 4 is provided with a supporting frame 12, the bottom shell of the seat cushion 5 is slidably connected with the supporting frame 12 through a mounting screw 11, specifically, a sliding groove is formed on the supporting frame 12, a part of the mounting screw 11 is located in the sliding groove to slide, and an end of the mounting screw 11 is fixedly connected with the bottom shell of the seat cushion 5 through threads, so that the seat cushion 5 and the base unit 4 slide.

The seat cushion is characterized by further comprising an adjusting hand 13, a spring 14 and a clamping block 16, wherein the adjusting hand 13 is rotationally connected with the bottom shell of the seat cushion 5, the spring 14 and the clamping block 16 are fixed with the top of the adjusting hand 13, the spring 14 and the clamping block 16 are respectively positioned at two sides of the joint of the adjusting hand 13 and the bottom shell of the seat cushion 5, a plurality of bayonets 15 which are distributed at equal intervals are arranged at the bottom of the support frame 12, the bayonets 15 correspond to the clamping blocks 16, and when in an unadjusted state, one end of the adjusting hand 13 is jacked downwards by virtue of the elasticity of the spring 14, so that one end of the adjusting hand 13 connected with the clamping block 16 is tilted upwards and is just clamped in one of the bayonets 15, and locking (in a fixed state) between the seat cushion 5 and the base mechanism 4 is realized; when in the adjusting state, a user pushes the handle of the adjusting hand 13 upwards to move upwards, compresses the spring 14, and at the moment, one end of the adjusting hand 13 connected with the clamping block 16 is tilted downwards to drive the clamping block 16 to separate from the bayonet 15, so that the user can adjust the seat cushion 5 and the base mechanism 4.

Referring to fig. 4, in an embodiment, the headrest 9 includes a headrest body 91, a bracket 92, and a fixing member 93, the bracket 92 is L-shaped, one end of the bracket 92 is fixed to the back of the headrest body 91, the fixing member 93 is fixedly connected to the backrest 8, the bracket 92 is fixedly connected to the fixing member 93, the bracket 92 and the fixing member 93 are used for ensuring the position of the headrest body 91, so that the headrest body can be located on the head of a user when in use, and the bracket 92 and the fixing member 93 can be slidably adjusted.

The main function of the headrest 9 is to support the head of a user, and the position of the head is different due to the difference of sitting postures and heights of the user, so that the bracket 92 and the fixing member 93 are arranged to be of a sliding structure, and the headrest is more convenient and comfortable to use.

The armrest 7 and the armrest frame 6 can be adjusted in a vertical sliding manner, an up-down sliding structure is adopted between the armrest 7 and the armrest frame 6, and a locking piece is arranged on the sliding structure, so that a user can adjust the height of the armrest 7 according to the requirement and fix the armrest 7 at a proper position.

The middle part of back 8 is provided with back auxiliary stay piece 10, and back auxiliary stay piece 10 is located between the two connections at back 8 and handrail frame 6 both ends, can increase the structural stability of back 8, and when the user leans back moreover, can support the waist of use, increases the travelling comfort.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (7)

1. The utility model provides a novel office chair, includes back of body subassembly, handrail subassembly, supporting component, base mechanism (4), seatpad (5), base mechanism (4) fixed connection at supporting component's top, seatpad (5) fixed connection at base mechanism (4) top, its characterized in that:

the armrest assembly comprises an armrest frame (6), the armrest frame (6) is U-shaped, the main body of the armrest frame is fixedly connected with the base mechanism (4), two ends of the armrest frame are respectively positioned at two sides of the seat cushion (5), and two end parts of the armrest frame (6) are fixedly connected with armrests (7);

the back assembly includes: the side face of the armrest frame (6) is connected with the backrest (8) through a structure B, and the headrest (9) is arranged at the top of the backrest (8);

the structure B comprises a fixing part (17) fixedly connected with the backrest (8), a backrest fixing screw (22), a backrest return spring (19), a backrest locking buckle (23), a backrest locking buckle return spring (27), a backrest locking knob (20), a backrest rotary button (24) and a backrest knob outer cover (26), wherein a locking opening (18) is formed in the side face of the fixing part (17), the backrest fixing screw (22) axially fixes the connecting part of the backrest (8) and the armrest frame (6), the backrest (8) and the armrest frame (6) can relatively rotate along the axial direction of the backrest fixing screw (22), the backrest return spring (19) is positioned between the connecting part of the backrest (8) and the armrest frame (6), two torsion feet of the backrest return spring (19) are respectively fixed with the fixing part (17) and the armrest frame (6), the inner side of the connecting part of the backrest locking buckle (23) is connected in a sliding mode, the backrest locking buckle (27) is positioned between the inner side of the connecting part of the backrest locking buckle (23) and the armrest frame (24), the backrest locking buckle (23) has a trend towards the connecting part of the backrest (8) and the armrest frame (6), the one end that back of body revolves button (24) is close to back of body (8) is provided with three card foot (25), back of body locking knob (20) are located between three card foot (25), the lateral surface of back of body locking knob (20) is provided with cam groove (21), the one end of back of body locking buckle (23) has the lug that is located inside cam groove (21), the outer end swing joint of back of body knob enclosing cover (26) and back of body knob knot (24), and the one end of back of body knob enclosing cover (26) runs through back of body revolves button (24), and with back of body locking knob (20) key connection.

2. A new office chair according to claim 1, wherein: the supporting component comprises a lifting air rod (3), five-star feet (1) and casters (2), wherein the casters (2) are provided with five, and are respectively fixed at the five feet of the five-star feet (1), and the bottom end of the lifting air rod (3) is fixed with the five-star feet (1).

3. A new office chair according to claim 1, wherein: the top of the base mechanism (4) is provided with a supporting frame (12), and the bottom shell of the seat cushion (5) is in sliding connection with the supporting frame (12) through a mounting screw (11);

still including adjusting hand (13), spring (14), fixture block (16), adjust the drain pan rotation of hand (13) and seatpad (5) and be connected, spring (14), fixture block (16) are all fixed with the top of adjusting hand (13), and spring (14), fixture block (16) are located the both sides of adjusting the drain pan junction of hand (13) and seatpad (5) respectively, the bottom of support frame (12) is provided with bayonet socket (15) that a plurality of equidistance distributes, and bayonet socket (15) correspond with fixture block (16).

4. A new office chair according to claim 1, wherein: the headrest (9) comprises a headrest body (91), a support (92) and a fixing piece (93), wherein the support (92) is L-shaped, one end of the support (92) is fixed with the back of the headrest body (91), the fixing piece (93) is fixedly connected with the backrest (8), and the support (92) is fixedly connected with the fixing piece (93).

5. The novel office chair of claim 4, wherein: the bracket (92) and the fixing piece (93) can be slidably adjusted.

6. A new office chair according to claim 1, wherein: the armrest (7) and the armrest frame (6) can be adjusted in an up-and-down sliding way.

7. A new office chair according to claim 1, wherein: a back auxiliary support (10) is arranged in the middle of the backrest (8).