Adjustable office chair

Abstract

The utility model provides an adjustable office chair, which comprises a seat plate, a base plate, an air pressure rod, a plurality of groups of supporting frame pieces, a plurality of supporting frame pieces, a plurality of supporting frame pieces and a plurality of supporting frame pieces, and is arranged on the ground through the supporting frame pieces in a sliding manner, the supporting frame piece comprises a support fixedly arranged on the base and a supporting seat installed at the outer end of the support, a sliding piece is fixedly arranged on one side of the supporting seat, and the supporting seat is installed in a sliding groove corresponding to the support through the sliding piece. A person can control the telescopic adjustment of the two adjacent sets of supports by pulling the linkage sleeves, and the clamping blocks on the linkage shafts are inserted into the corresponding clamping grooves by rotating the linkage sleeves, so that the supports are locked through the linkage pieces. When a person needs to lie down on the office chair for a rest, the linkage sleeve drives the support to extend outwards through the linkage shaft, the clamping block of the linkage shaft slides in the guide groove, and after the support reaches a designated position, the linkage sleeve is rotated, so that the clamping block is inserted into the clamping groove, and the support is locked.

Description

Technical Field

[0001] The utility model relates to the technical field of office chairs, in particular to an adjustable office chair. Background Technique

[0002] As a tool for people to sit on in the office, after a long period of work, in order to relax, relieve stress and fatigue, people need to recline the backrest of the office chair for lying down and resting. However, due to the small supporting area of the office chair base, after people lie down, most of the weight is on the backrest, which easily causes uneven stress on the office chair and leads to tipping over. Content of the Utility Model

[0003] The technical problem solved by the utility model is to provide an office chair with an adjustable base support area to improve the stability of the office chair and solve the problems raised in the above background technique.

[0004] The technical problem solved by the utility model is realized by adopting the following technical solutions:

[0005] An adjustable office chair, comprising:

[0006] A seat board, which is installed on the base through a pneumatic rod. A plurality of groups of support members are annularly distributed at the outer end of the base and are slidably installed on the ground through the support members;

[0007] The support member includes a bracket fixedly arranged on the base and a support installed at the outer end of the bracket. A sliding member is fixedly arranged on one side of the support and is installed in the corresponding sliding groove of the bracket through the sliding member, so that the support can be telescopically adjusted. A pulley is installed at the lower end of the support to be slidably connected to the ground through the pulley;

[0008] A linkage member, which is used to connect two adjacent supports, so that the two supports can achieve synchronous telescopic movement through the linkage member. The linkage members are arranged at intervals, so that each support is only connected to one linkage member.

[0009] As a further scheme of the utility model:

[0010] The linkage member includes a linkage shaft installed on one side of the support and a linkage sleeve sleeved on the two sides of the linkage shaft. The linkage shafts on the two supports are symmetrically arranged and are respectively inserted into the two side shaft holes of the linkage sleeve. People can pull the linkage sleeve, and through the linkage sleeve, pull the linkage shaft to move back and forth to drive the two supports to move. At the same time, the linkage shaft is slidably arranged in the linkage sleeve.

[0011] As a further scheme of the utility model:

[0012] The sliding member includes a sliding rod fixedly connected to the support and a slider provided at the outer end of the sliding rod. The slider is slidably installed in the chute of the bracket. A support sleeve for limiting the slider is provided at the outer end of the bracket. The support sleeve is provided with an opening so that the sliding rod can penetrate through the opening of the support sleeve and be slidably connected to the support sleeve.

[0013] As a further solution of the present utility model:

[0014] A support block is fixedly installed on one side of the support. The linkage shaft is fixedly arranged on the outer side of the support block. The linkage shaft is of a cylindrical structure. A clamping block is provided on one side of the outer end of the linkage shaft. The linkage shaft is inserted into the shaft hole of the linkage sleeve and is slidably connected. A guide groove corresponding to the clamping block is provided on the linkage sleeve at the shaft hole so that the clamping block can be slidably connected in the guide groove. A plurality of partition blocks are linearly distributed on one side of the guide groove. A clamping groove is formed between adjacent partition blocks. The clamping groove is communicated with the guide groove and the shaft hole respectively. Personnel can rotate the linkage sleeve to insert the clamping block located in the guide groove into the corresponding clamping groove, thereby fixing the linkage shafts on both sides at the corresponding positions of the linkage sleeve.

[0015] As a further solution of the present utility model:

[0016] A push handle is fixedly provided at the outer end of the linkage sleeve to facilitate personnel to push and rotate the linkage sleeve. The clamping block is arranged at the upper end of the linkage shaft, and the push handle is located at the outer end side of the guide groove.

[0017] As a further solution of the present utility model:

[0018] A back plate is provided on one side of the seat plate. The back plate is rotatably connected to the seat plate through a rotating seat to facilitate personnel to adjust the inclination angle of the back plate for lying down and resting. Armrests are also provided on both sides of the seat plate.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows: Personnel can pull the linkage sleeve to control the telescopic adjustment of adjacent two groups of supports, and rotate the linkage sleeve to insert the clamping block on the linkage shaft into the corresponding clamping groove to lock the support through the linkage member. When personnel need to lie down and rest on the office chair, the linkage sleeve drives the support to extend outwards through the linkage shaft. The clamping block of the linkage shaft slides in the guide groove. When the support reaches the specified position, rotate the linkage sleeve to insert the clamping block into the clamping groove to lock the support, increasing the support area at the bottom of the office chair, thereby improving stability. When personnel lie down and rest on the office chair, the office chair will not tip over due to uneven force. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0021] Figure 2 is a cross-sectional structural schematic diagram of the support member of the present utility model;

[0022] Figure 3 Schematic diagram of the linkage shaft structure of the present utility model;

[0023] Figure 4 Schematic cross-sectional structure diagram of the linkage member of the present utility model;

[0024] Figure 5 is Figure 4 Enlarged structure diagram at position A in

[0025] Identifications in the figure: 1, seat board; 2, base; 3, linkage member; 11, pneumatic rod; 12, back board; 13, armrest; 21, bracket; 22, support; 23, chute; 24, pulley; 25, sliding rod; 26, slider; 27, support sleeve; 28, support block; 31, linkage shaft; 32, linkage sleeve; 33, clamping block; 34, guiding groove; 35, spacer block; 36, clamping groove; 37, push handle. Specific embodiments

[0026] In order to make the implementation means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below with reference to specific drawings.

[0027] As Figures 1 to 5 shown,

[0028] This embodiment provides an adjustable office chair, including:

[0029] Seat board 1, which is installed on the base 2 through the pneumatic rod 11. A number of groups of support members are annularly distributed at the outer end of the base 2, and the base 2 is slidably installed on the ground through the support members;

[0030] Support member, which includes a bracket 21 fixedly arranged on the base 2 and a support 22 installed at the outer end of the bracket 21. A sliding member is fixedly arranged on one side of the support 22 and is installed in the corresponding chute 23 of the bracket 21, so that the support 22 can be telescopically adjusted. A pulley 24 is installed at the lower end of the support 22 to be slidably connected to the ground through the pulley 24;

[0031] Linkage member 3, which is used to connect two adjacent support members 22, so that the two support members 22 can achieve synchronous telescopic movement through the linkage member 3. The linkage members 3 are arranged at intervals, so that each support member 22 is only connected to one linkage member 3.

[0032] In this embodiment, the linkage member 3 includes a linkage shaft 31 installed on one side of the support 22 and a linkage sleeve 32 sleeved on the two sides of the linkage shaft 31. The linkage shafts 31 on the two groups of supports 22 are symmetrically arranged and are respectively inserted into the shaft holes on both sides of the linkage sleeve 32. Personnel can pull the linkage sleeve 32 to drive the linkage shaft 31 to move back and forth through the linkage sleeve 32, so as to drive the supports 22 on both sides to move. At the same time, the linkage shaft 31 is slidably arranged in the linkage sleeve 32.

[0033] In this embodiment, the sliding member includes a slide bar 25 fixedly connected to the support 22 and a slider 26 arranged at the outer end of the slide bar 25. The slider 26 is slidably installed in the chute 23 of the bracket 21. A support sleeve 27 for limiting the slider 26 is provided at the outer end of the bracket 21. The support sleeve 27 is provided with an opening so that the slide bar 25 can penetrate through the opening of the support sleeve 27 and is slidably connected to the support sleeve 27.

[0034] In this embodiment, a support block 28 is fixedly installed on one side of the support 22, and the linkage shaft 31 is fixedly arranged on the outside of the support block 28. The linkage shaft 31 is of a cylindrical structure. A clamping block 33 is provided on one side of the outer end of the linkage shaft 31. The linkage shaft 31 is inserted into the shaft hole of the linkage sleeve 32 and is slidably connected. A guiding groove 34 corresponding to the clamping block 33 is provided on the linkage sleeve 32 at the shaft hole, so that the clamping block 33 is slidably connected in the guiding groove 34. A plurality of partition blocks 35 are linearly distributed on one side of the guiding groove 34, and a clamping groove 36 is formed between adjacent partition blocks 35. The clamping groove 36 communicates with the guiding groove 34 and the shaft hole respectively. Personnel can rotate the linkage sleeve 32 to insert the clamping block 33 located in the guiding groove 34 into the corresponding clamping groove 36, so as to fix the linkage shafts 31 on both sides at the corresponding positions of the linkage sleeve 32, prevent the sliding of the linkage shaft 31, limit the support 22, prevent the telescopic movement of the support 22, and improve the stability of the support member.

[0035] A push handle 37 is fixedly provided at the outer end of the linkage sleeve 32 to facilitate personnel to push the linkage sleeve 32 to rotate. The clamping block 33 is arranged at the upper end of the linkage shaft 31, and the push handle 37 is located at the outer end side of the guiding groove 34. When the clamping block 33 is located at the upper end of the linkage shaft 31 and the clamping block 33 is in the guiding groove 34, the push handle 37 is in the vertical plane. In this way, the push handle 37 pushes the linkage sleeve 32 to rotate, so that the clamping block 33 is inserted into the clamping groove 36. At this time, the push handle 37 is inclined, and the push handle 37 is downward due to its own gravity, which can prevent the push handle 37 from rotating upward, thereby improving the locking stability of the linkage sleeve 32 to the linkage shaft 31. Specifically, personnel can rotate and adjust the linkage sleeve 32 through the push handle 37 to switch the clamping block 33 between the guiding groove 34 and the clamping groove 36. When the linkage shaft 31 is movably connected to the linkage sleeve 32, the clamping block 33 is located in the guiding groove 34. When the linkage shaft 31 is clamped to the linkage sleeve 32, the clamping block 33 is located in the clamping groove 36.

[0036] In this embodiment, a backboard 12 is provided on one side of the seat board 1. The backboard 12 is rotatably connected to the seat board 1 through a rotating seat, so as to facilitate the personnel to adjust the inclination angle of the backboard and facilitate the personnel to lie down and rest. Armrests 13 are also provided on both sides of the seat board 1.

[0037] The working principle of the present utility model is as follows: The personnel can control the telescopic adjustment of two adjacent sets of supports 22 by pulling the linkage sleeve 32, and by rotating the linkage sleeve 32, the clamping block 33 on the linkage shaft 31 is inserted into the corresponding card slot 36 to fix the linkage member 3. Since the support members are arranged in a circular distribution, there is a certain included angle between adjacent support members. When the linkage shaft 31 and the linkage sleeve 32 are locked, the distance between two adjacent sets of supports 22 is fixed, thereby restricting the telescopic movement of the supports 22.

[0038] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed for the present utility model is defined by the appended claims and their equivalents. It should be noted that in this article, if there are relational terms such as first and second, they are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

Claims

1. An adjustable office chair, characterized in that: include: The seat plate is mounted on the base through a gas pressure rod, and a plurality of groups of supporting frame members are arranged in an annular manner on the outer end of the base, and the seat plate is slidably mounted on the ground through the supporting frame members; A support frame member, the support frame member includes a bracket fixedly arranged on the base, a support seat installed at the outer end of the bracket, a sliding member fixedly arranged on one side of the support seat, and installed in a slide groove corresponding to the bracket through the sliding member, so that the support seat can be telescopically adjusted, and a pulley is installed at the lower end of the support seat, so as to be slidably connected to the ground through the pulley; The linkage member is used to connect two adjacent groups of the above-mentioned supports so that the two groups of supports can achieve synchronous telescopic action through the linkage member. The linkage members are arranged at intervals so that each group of supports is only connected to one group of linkage members.

2. The adjustable office chair according to claim 1, characterized in that: The linkage member comprises a linkage shaft installed on one side of the support and a linkage sleeve sleeved on the linkage shafts on both sides. The linkage shafts on the two groups of supports are symmetrically arranged and respectively inserted into the shaft holes on both sides of the linkage sleeve.

3. The adjustable office chair according to claim 2, characterized in that: The sliding member includes a sliding rod fixedly connected to the support and a sliding block arranged at the outer end of the sliding rod. The sliding block is slidably installed in the sliding groove of the support. The outer end of the support is provided with a supporting sleeve for limiting the sliding block. The supporting sleeve is provided with an opening to facilitate the sliding rod to pass through the opening of the supporting sleeve and be slidably connected with the supporting sleeve.

4. The adjustable office chair according to claim 2, characterized in that: A support block is fixedly installed on one side of the support, and the linkage shaft is fixedly arranged on the outside of the support block. The linkage shaft is a cylindrical structure, and a clamping block is provided on one side of the outer end of the linkage shaft. The linkage shaft is inserted into the shaft hole of the linkage sleeve for sliding connection. The linkage sleeve is located on the shaft hole and a guide groove is provided corresponding to the clamping block so that the clamping block can be slidably connected in the guide groove. A plurality of spacer blocks are linearly distributed on one side of the guide groove, and clamping grooves are formed between adjacent spacer blocks. The clamping grooves are respectively connected with the guide groove and the shaft hole. A person can rotate the linkage sleeve so that the clamping block in the guide groove is inserted into the corresponding clamping groove, thereby fixing the linkage shafts on both sides at the corresponding positions of the linkage sleeve.

5. The adjustable office chair according to claim 4, characterized in that: A push handle is fixedly provided at the outer end of the linkage sleeve, the clamping block is arranged at the upper end of the linkage shaft, and the push handle is located at the outer end side of the guide groove.

6. The adjustable office chair according to claim 1, characterized in that: A back plate is provided on one side of the seat plate, the back plate is rotatably connected to the seat plate through a rotating seat, and armrests are provided on both sides of the seat plate.

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