Portable office chair

Abstract

The utility model discloses a portable office chair, relates to the field of office chairs, solves the problems that the conventional device is difficult to carry out integral folding transfer on the office chair according to requirements and the operation of adjusting the inclination angle of the office chair is tedious, and adopts the following scheme that the portable office chair comprises a chair seat, a chair back and a base, and the chair back and the base are arranged on the rear side and the bottom side of the chair seat; a shaft column is fixedly mounted on the rear side of the chair seat, and fluted discs are fixedly mounted at the two ends of the shaft column; a shaft seat is fixedly mounted at the bottom of the chair back, the shaft seat is rotatably mounted on the shaft column in a sleeving manner, and a limiting clamp meshed with the fluted disc is assembled on the outer wall of the shaft seat; according to the portable office chair, through arrangement of components at the joint of the chair seat and the chair back, the chair back can be inclined and folded on the top side of the chair seat by utilizing rotation of the shaft column in the shaft seat, and through arrangement of a fluted disc and a limiting clamp on the top side of the fluted disc, the adjusted position can be limited; the stability of the chair during sitting is ensured, and integrated folding and angle adjustment can be conveniently carried out on the chair.

Description

Technical Field

[0001] The utility model relates to the technical field of office chairs, in particular to a portable office chair. Background Art

[0002] An office chair is an auxiliary tool used in daily work to provide auxiliary support for the human body. Existing office chairs are large in size and inconvenient to carry.

[0003] After searching, the application with patent number CN202122922271.0 discloses a portable office chair, including a seat, a backrest, a fixed seat, a fixed base, universal wheels, a support column, a connection structure, a lumbar support structure and an armrest structure. The bottom surface of the seat is fixedly connected with a fixed seat, a slot is provided on the bottom surface of the fixed seat, universal wheels are fixedly installed at the four corners of the bottom surface of the fixed base, one end of the support column is fixedly connected to the upper surface of the fixed base, the other end of the support column extends into the slot of the fixed seat, and is slidably plugged with the fixed seat;

[0004] The above application document realizes the separate transportation between the chair back and the base through the setting of a connecting mechanism, thereby achieving the effect of portable transportation. However, the separate transportation is not convenient for adjusting the tilt angle of the chair back during work. Secondly, the operation is cumbersome and requires transportation in steps, which has low practicality.

[0005] Therefore, we propose a portable office chair. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a portable office chair, which solves the problem that the prior device is difficult to carry out overall folding and transportation of the office chair according to demand and the operation of adjusting the tilt angle thereof is cumbersome.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a portable office chair, including a seat and a backrest and a base at the rear and bottom sides thereof;

[0008] A shaft column is fixedly installed on the rear side of the seat, and gear discs are fixedly installed on both ends of the shaft column;

[0009] The bottom of the chair back is fixedly provided with an axle seat, the axle seat is rotatably sleeved on the axle column, and a limit card engaged with a gear disc is mounted on the outer wall of the axle seat.

[0010] Preferably, a bearing seat is fixedly mounted on the outer wall of the shaft seat, and the shaft seat is fixedly connected to a limit clamp via the bearing seat;

[0011] Among them, the setting of the bearing seat is convenient for the limit card to rotate freely on the outer side of the shaft seat, thereby ensuring the meshing effect between it and the gear disc.

[0012] Preferably, the limit card is located obliquely above the front side of the gear disc;

[0013] Among them, the setting of the limit card position can ensure that the gear plate does not automatically rotate backwards due to its influence, thereby ensuring the stability of the chair back after the angle is adjusted. At the same time, it is also convenient to directly rotate the chair back forward to fold it as a whole for subsequent transportation.

[0014] Preferably, the clamping teeth on the toothed disc are arc-shaped teeth, and the limit clamp is provided with groove teeth matching the gap specifications between the arc-shaped teeth in the toothed disc;

[0015] Among them, the configuration of the gear disc and the limiting card shape is convenient for ensuring the meshing effect, and also ensures the subsequent locking effect.

[0016] Preferably, the shaft seat is an inverted U-shaped seat, and the centers of the bottom sides of both ends of the shaft seat are fixedly sleeved on the outer wall of the shaft column through bearing rings;

[0017] Among them, the arrangement of the axle seat rotating sleeve on the axle column makes it easy for the chair back to rotate freely on the rear side of the chair seat, so as to facilitate subsequent folding, transportation and angle adjustment.

[0018] Preferably, the bottom of the seat is equipped with a base through a hydraulic assembly, and electric cylinder armrests with relatively similar positions and specifications are fixedly installed on both sides of the seat;

[0019] The base and the electric cylinder armrest are arranged to facilitate overall folding thereof.

[0020] The utility model provides a portable office chair, which has the following beneficial effects:

[0021] The portable office chair, through the arrangement of various components at the connection between the seat and the chair back, can utilize the rotation of the shaft column in the shaft seat to realize the tilting and folding of the chair back on the top side of the seat, and the arrangement of the gear plate and its top side limit card can limit the adjusted position to ensure the stability of the chair when sitting, so as to facilitate its integrated folding and angle adjustment, thereby solving the problem that the existing device is difficult to carry out the overall folding and transportation of the office chair according to needs and the complicated operation of adjusting its tilt angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the chair seat of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the side view of the chair seat of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the axle seat of the utility model.

[0026] In the figure: 1, seat; 11, shaft column; 12, gear plate; 2, seat back; 21, shaft seat; 22, limit card; 23, bearing seat; 3, base. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-4 The embodiment of the utility model provides a technical solution: a portable office chair, comprising a seat 1 and a backrest 2 and a base 3 at the rear and bottom sides thereof; a shaft column 11 is fixedly installed at the rear side of the seat 1, and toothed discs 12 are fixedly installed at both ends of the shaft column 11; a shaft seat 21 is fixedly installed at the bottom of the backrest 2, the shaft seat 21 is rotatably mounted on the shaft column 11, and a limit card 22 engaged with the toothed disc 12 is mounted on the outer wall of the shaft seat 21;

[0029] Among them, the portable office chair, through the arrangement of various components at the connection between the seat 1 and the backrest 2, can utilize the rotation of the shaft column 11 in the shaft seat 21 to realize the tilting and folding of the backrest 2 on the top side of the seat 1, and the arrangement of the gear plate 12 and its top side limit card 22 can limit the adjusted position to ensure the stability of the chair when sitting, so as to facilitate its integrated folding and angle adjustment, thereby solving the problem that the existing device is difficult to carry out the overall folding and transportation of the office chair according to needs and the cumbersome operation of adjusting its tilt angle.

[0030] Embodiment 2:

[0031] A bearing seat 23 is fixedly installed on the outer wall of the shaft seat 21, and the shaft seat 21 is fixedly connected to the limit card 22 through the bearing seat 23; wherein, the setting of the bearing seat 23 facilitates the limit card 22 to rotate freely on the outer side of the shaft seat 21 to ensure the meshing effect between it and the gear disk 12.

[0032] The limit card 22 is located obliquely above the front side of the toothed disc 12; wherein, the position setting of the limit card 22 can ensure that the toothed disc 12 does not automatically rotate backwards due to its influence, thereby ensuring the stability of the chair back 2 after the angle is adjusted, and at the same time, it is also convenient to directly rotate the chair back 2 forward to fold it as a whole for subsequent transportation.

[0033] The locking teeth on the toothed disc 12 are arc-shaped teeth, and the limit card 22 is provided with groove teeth that match the gap specifications between the arc-shaped teeth in the toothed disc 12; wherein, the shape of the toothed disc 12 and the limit card 22 is convenient for ensuring the meshing effect, and also ensures the subsequent locking effect.

[0034] The shaft seat 21 is an inverted U-shaped seat, and the centers of the bottom sides of both ends of the shaft seat 21 are fixedly mounted on the outer wall of the shaft column 11 through bearing rings; wherein, the arrangement of the shaft seat 21 rotatably mounted on the shaft column 11 facilitates the free rotation of the chair back 2 on the rear side of the chair seat 1, so as to facilitate subsequent folding, transportation and angle adjustment.

[0035] The bottom of the seat 1 is assembled with a base 3 through a hydraulic assembly, and electric cylinder armrests with relatively similar positions and specifications are fixedly installed on both sides of the seat 1; wherein, the arrangement of the base 3 and the electric cylinder armrests facilitates the overall folding thereof.

[0036] The working principle and use process of the utility model are as follows: when the device is needed to work, pull open the limit card 22, turn the chair back 2 to make it rotate freely on the rear side of the seat 1, and after adjusting to the corresponding position, release the limit card 22 to make it clamped on the gear plate 12 to achieve angle adjustment and subsequent position limitation. When it is necessary to fold and transport it, directly rotate the chair back 2 forward to make it above the seat 1, and then adjust the base 3 and the electric cylinder armrest in turn, so that the office chair can be folded as a whole to ensure the subsequent transportation effect.

[0037] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A portable office chair, comprising a seat (1) and a backrest (2) and a base (3) at the rear and bottom sides thereof; Features: A shaft column (11) is fixedly mounted on the rear side of the seat (1), and toothed discs (12) are fixedly mounted on both ends of the shaft column (11); A shaft seat (21) is fixedly mounted on the bottom of the chair back (2). The shaft seat (21) is rotatably mounted on the shaft column (11), and a limit card (22) engaged with a toothed disc (12) is mounted on the outer wall of the shaft seat (21).

2. A portable office chair according to claim 1, characterized in that: A bearing seat (23) is fixedly mounted on the outer wall of the shaft seat (21), and the shaft seat (21) is fixedly connected to the limit clamp (22) via the bearing seat (23).

3. The portable office chair according to claim 1, characterized in that: The limit card (22) is located obliquely above the front side of the toothed disc (12).

4. The portable office chair according to claim 1, characterized in that: The clamping teeth on the toothed disc (12) are arc-shaped teeth, and the limiting clamp (22) is provided with groove teeth matching the specifications of the gaps between the arc-shaped teeth in the toothed disc (12).

5. The portable office chair according to claim 1, characterized in that: The shaft seat (21) is an inverted U-shaped seat, and the centers of the bottom sides of both ends of the shaft seat (21) are fixedly sleeved on the outer wall of the shaft column (11) through bearing rings.

6. The portable office chair according to claim 1, characterized in that: The bottom of the seat (1) is assembled with a base (3) via a hydraulic assembly, and electric cylinder armrests with relative positions and similar specifications are fixedly mounted on both sides of the seat (1).

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