CN212394379U

CN212394379U - Office chair

Info

Publication number: CN212394379U
Application number: CN202020765649.3U
Authority: CN
Inventors: 吴仲斌
Original assignee: Foshan Shunde Dingzun Furniture Co Ltd
Current assignee: Foshan Shunde Dingzun Furniture Co Ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2021-01-26
Anticipated expiration: 2030-05-11

Abstract

The utility model provides an office chair, which comprises a chair leg assembly, a chassis, a seat body assembly, a handrail and an elastic supporting piece, wherein the chair leg assembly is connected with the chassis, the handrail is fixedly connected with the seat body assembly, the handrail is rotatably connected with the chassis, one end of the elastic supporting piece is connected with the chassis, the other end of the elastic supporting piece is connected with the seat body assembly, the elastic supporting piece is compressed when the seat body assembly overturns backwards, a locking device is also arranged on the elastic supporting piece, and the elastic supporting piece does not do telescopic motion when the seat body assembly overturns backwards after the elastic supporting piece is locked by the locking device; the office chair has the advantages of reasonable and reliable structure, good comfort and convenient use.

Description

Office chair

Technical Field

The utility model belongs to the technical field of office equipment, concretely relates to office chair.

Background

The office chair refers to various chairs which are equipped for convenience in daily work and social activities. In order to provide the office chair with a better comfort when in use, i.e. to provide a comfortable support for the person when leaning against the backrest of the chair. However, the office chair in the prior art is inconvenient to use, for example, as disclosed in application No. 201710936711.3, the office chair needs to adjust the inclination angle of the backrest of the office chair by the cushion inclination angle adjusting rod when in use so as to meet different use requirements of people, and particularly, the office chair adjusts the inclination angle of the backrest by rotating a screw rod, so that the adjusting process is relatively complicated; or the office chair and the backrest are elastically connected through an elastic plate spring, so that a person can provide comfortable elastic support when leaning against the backrest, but when the elastic plate spring is used for connection, the connection part of the plate spring and the lower part of the seat cushion is easily damaged due to a relatively large pulling force; therefore, convenience of use or reliability of use of the office chair is reduced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a rational in infrastructure reliable, travelling comfort is good and convenient to use's office chair.

In order to solve the technical problem, the utility model discloses the technical scheme who uses is:

an office chair comprises a chair leg assembly, a chassis, a seat body assembly, handrails and elastic supporting pieces, wherein the chair leg assembly is connected with the chassis, the handrails are fixedly connected with the seat body assembly, the handrails are rotatably connected with the chassis, one end of each elastic supporting piece is connected with the chassis, the other end of each elastic supporting piece is connected with the seat body assembly, the elastic supporting pieces are compressed when the seat body assembly overturns backwards, locking devices are further arranged on the elastic supporting pieces, and the elastic supporting pieces do not do telescopic motion when the seat body assembly overturns backwards after the elastic supporting pieces are locked by the locking devices.

As a further improvement of the office chair, the seat body assembly comprises a frame, a backrest and a seat cushion, the backrest is connected with the seat cushion to form an L shape, and the backrest and the seat cushion are fixed on the frame.

As a further improvement of the office chair, a bottom connecting cross rod is arranged on the frame close to the joint of the backrest and the seat cushion, and the bottom connecting cross rod is fixed with the frame.

As a further improvement of the office chair, the elastic supporting piece comprises an upper spring sleeve, a lower spring sleeve, a spring and a connecting guide rod, the spring is positioned between the upper spring sleeve and the lower spring sleeve, one end of the connecting guide rod is fixedly connected with the upper spring sleeve, the other end of the connecting guide rod is connected with the lower spring sleeve in a sliding manner, the spring sleeve is arranged outside the connecting guide rod, the upper spring sleeve is rotatably connected with the bottom connecting cross rod, and the lower spring sleeve is rotatably connected with the chassis.

As a further improvement of the office chair, the locking device comprises a lock pin and a lock hole seat, the lock hole seat is arranged on the side wall of the lower spring sleeve, and the lock pin is connected with the lock hole seat in a sliding mode.

As a further improvement of the office chair, the chair leg assembly comprises a chair leg main body and a plurality of rollers, and the rollers are annularly arranged on the chair leg main body and connected with the chair leg main body.

As a further improvement of the office chair, the chair leg assembly further comprises the air rod, one end of the air rod is connected with the chair leg main body, and the other end of the air rod is connected with the chassis.

As a further improvement of the office chair, the frame is further provided with an air rod adjusting device, the air rod adjusting device is used for adjusting the telescopic length of the air rod, the air rod adjusting device comprises an adjusting wrench, an adjusting pull wire and a triggering pressing block, the adjusting wrench is rotatably connected with the frame, the triggering pressing block is rotatably connected with the chassis, the triggering pressing block is opposite to a triggering switch at the end part of the air rod, and the adjusting pull wire is respectively connected with the adjusting wrench and the triggering pressing block.

The beneficial effects of the utility model are mainly embodied in that: the armrest connected with the seat body assembly is rotatably connected with the chassis, and the elastic supporting piece is arranged between the seat body assembly and the chassis, so that when the chair is seated on, the seat body assembly can bear pressure on the elastic supporting piece when leaning backwards to compress the elastic supporting piece, and the inclination angle of the seat body assembly is changed, namely the elastic supporting piece is matched with the seat body assembly and forms elastic support for the seat body assembly, so that the comfort of the loose chair in use is improved, and the inconvenience of manually adjusting the inclination angle of the office chair in the traditional mode is avoided; meanwhile, as the locking device is arranged on the elastic supporting piece, the locking device can be locked when the seat body assembly is not needed to change the inclination angle, thereby further improving the applicability of the office chair.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.

Fig. 1 is a schematic side view of an office chair according to the present invention;

fig. 2 is a schematic view of the overall structure of an office chair according to the present invention;

fig. 3 is an exploded view of an office chair according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the illustrated embodiments are not intended to limit the present invention, and in the present embodiments, it is understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and only describe the present invention, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention; in the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a welding fixing manner, or a pin 5 fixing manner, which is commonly used in the prior art, and therefore, detailed description thereof is omitted in this embodiment.

As shown in fig. 1-3, the present embodiment provides an office chair, which includes a leg assembly 1, a chassis 2, a seat assembly 3, a handrail 4 and an elastic supporting member 5, wherein the leg assembly 1 is connected to the chassis 2, the handrail 4 is fixed to the seat assembly 3 by a bolt, the handrail 4 is rotatably connected to the chassis 2 by a pin, one end of the elastic supporting member 5 is hinged to the chassis 2, and the other end of the elastic supporting member is hinged to the seat assembly 3, when the seat assembly 3 is turned backwards, the elastic supporting member 5 is compressed, the elastic supporting member 5 is further provided with a locking device 6, and the locking device 6 locks the elastic supporting member 5 and the elastic supporting member 5 does not perform a telescopic motion when the seat assembly 3 is turned backwards. The seat assembly 3 includes a frame 31, a backrest 32 and a seat cushion 33, the backrest 32 and the seat cushion 33 are integrally formed and are L-shaped, and the backrest 32 and the seat cushion 33 are fixed to the frame 31 by bolts. A bottom connecting cross bar 34 is further disposed on the frame 31 near the connection between the backrest 32 and the seat cushion 33, and the bottom connecting cross bar 34 and the frame 31 are fixed by bolts or welding. The elastic supporting part 5 comprises an upper spring sleeve 51, a lower spring sleeve 52, a spring 53 and a connecting guide rod 54, wherein the spring 53 is positioned between the upper spring sleeve 51 and the lower spring sleeve 52, one end of the connecting guide rod 54 is fixed with the upper spring sleeve 51 through threads, the other end of the connecting guide rod 54 is connected with the lower spring sleeve 52 in a sliding mode, the spring 53 is sleeved outside the connecting guide rod 54, the upper spring sleeve 51 and the bottom connecting cross rod 34 are in rotating connection through a pin shaft, and the lower spring sleeve 52 and the chassis 2 are in rotating connection through a pin shaft. The locking device 6 comprises a lock pin 61 and a lock hole seat 62, the lock hole seat 62 is connected to the side wall of the lower spring sleeve 52, the lock hole is arranged in the radial direction relative to the lower spring sleeve 53, and the lock pin 61 is connected with the lock hole seat 62 in a sliding mode. Specifically, the armrest 4 connected with the seat assembly 3 is rotatably connected with the chassis 2 to form a rotation pivot of the seat assembly 3 and the chassis 2, and meanwhile, an elastic support member 5 is arranged between the seat assembly 3 and the chassis 2, one end of the elastic support member 5 is connected to the chassis 2, and the other end is connected to a bottom connecting cross rod 34 far away from the rotation pivot; when sitting on the chair and leaning backwards on the backrest 32, that is, when the seat assembly 3 is deflected backwards, the seat assembly 3 applies a force to the elastic support 5 to compress the elastic support 5, so that the inclination angle of the seat assembly 3 changes, that is, the elastic support 5 and the seat assembly 3 are mutually matched and form an elastic support for the seat assembly 3, and the seat assembly 3 is reset under the elastic acting force of the spring 53 after a person leaves the office chair. When the inclination angle of the office chair is not required to be changed, the elastic support piece 5 is locked by the locking device 6; specifically, when the locking is required, the lock pin 61 is pushed into the lock hole seat 62, so that the lock pin 61 is blocked on the sliding path of the connecting guide rod 54 relative to the other end of the upper spring sleeve 53, that is, when the elastic support member 5 is stressed, the end of the connecting guide rod 54 abuts against the lock pin 61 and cannot slide continuously, thereby forming the dead locking of the elastic support member 5, and further making the inclination angle of the office chair unadjustable; otherwise, the lock pin 61 is pulled out.

As shown in fig. 1-3, in the preferred embodiment, the chair leg assembly 1 comprises a chair leg main body 11 and a plurality of rollers 12, the plurality of rollers 12 are disposed around the chair leg main body 11 and fixed to the chair leg main body 11, and the rollers 12 facilitate the flexible movement of the office chair during use. The chair leg assembly 1 further comprises an air rod 13, one end of the air rod 13 is fixedly clamped with the chair leg main body 11, and the other end of the air rod 13 is fixedly clamped with the chassis 2. The frame 31 is further provided with an air rod adjusting device 7, the air rod adjusting device 7 is used for adjusting the telescopic length of the air rod 13, namely, the height position of the office chair is adjusted, the air rod adjusting device 7 comprises an adjusting wrench 71, an adjusting pull wire 72 and a trigger pressing block 73, the adjusting wrench 71 is rotatably connected with the frame 31 through a pin shaft, the trigger pressing block 73 is rotatably connected with the chassis 2, the trigger pressing block 73 corresponds to a trigger switch at the end of the air rod 13, two ends of the adjusting pull wire 72 are respectively connected with the adjusting wrench 71 and the trigger pressing block 73, when the adjusting pull wire is used, the adjusting wrench 71 is rotated and one end of the adjusting pull wire 72 is pulled, the other end of the adjusting pull wire 72 drives the trigger pressing block 73 to rotate and press down the trigger switch of the air rod 13, so that the air rod seat body can lift or lower the assembly 3, and the adjusting wrench 71 is reset.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An office chair, characterized in that: the seat assembly is fixedly connected with the base assembly, the handrail is rotatably connected with the base, one end of the elastic support member is connected with the base, the other end of the elastic support member is connected with the base assembly, the elastic support member is compressed when the base assembly turns backwards, a locking device is further arranged on the elastic support member, and the elastic support member does not do telescopic motion when the base assembly turns backwards after the elastic support member is locked by the locking device.

2. An office chair as claimed in claim 1, wherein: the seat body assembly comprises a frame, a backrest and a seat cushion, the backrest is connected with the seat cushion to form an L shape, and the backrest and the seat cushion are fixed on the frame.

3. An office chair as claimed in claim 2, wherein: and a bottom connecting cross rod is arranged on the frame close to the joint of the backrest and the seat cushion, and the bottom connecting cross rod is fixed with the frame.

4. An office chair as claimed in claim 3, wherein: the elastic support piece comprises an upper spring sleeve, a lower spring sleeve, a spring and a connecting guide rod, wherein the spring is positioned between the upper spring sleeve and the lower spring sleeve, one end of the connecting guide rod is fixedly connected with the upper spring sleeve, the other end of the connecting guide rod is connected with the lower spring sleeve in a sliding manner, the spring sleeve is arranged outside the connecting guide rod, the upper spring sleeve is rotatably connected with the bottom connecting cross rod, and the lower spring sleeve is rotatably connected with the chassis.

5. An office chair as claimed in claim 4, wherein: the locking device comprises a lock pin and a lock hole seat, the lock hole seat is arranged on the side wall of the lower spring sleeve, and the lock pin is connected with the lock hole seat in a sliding mode.

6. An office chair as claimed in claim 2, wherein: the chair leg assembly comprises a chair leg main body and a plurality of idler wheels, and the idler wheels are annularly arranged on the chair leg main body and connected with the chair leg main body.

7. An office chair as claimed in claim 6, wherein: the chair leg assembly also comprises an air rod, one end of the air rod is connected with the chair leg main body, and the other end of the air rod is connected with the chassis.

8. An office chair as claimed in claim 7, wherein: the frame is further provided with a gas rod adjusting device, the gas rod adjusting device is used for adjusting the telescopic length of the gas rod, the gas rod adjusting device comprises an adjusting wrench, an adjusting pull wire and a triggering pressing block, the adjusting wrench is connected with the frame in a rotating mode, the triggering pressing block is connected with the chassis in a rotating mode, the triggering pressing block is opposite to a triggering switch at the end portion of the gas rod, and the adjusting pull wire is connected with the adjusting wrench and the triggering pressing block respectively.