阅读说明：本技术 一种防后仰和侧摔的实木办公椅 (Prevent wood office chair that back-facing upward and side were fallen ) 是由 陈思 付永清 皮文军 于 2021-06-23 设计创作，主要内容包括：本发明涉及办公椅技术领域,具体涉及到一种防后仰和侧摔的实木办公椅,包括办公椅本体、防倾倒装置、驱动装置,所述防倾倒装置包括两个定位块、两个支撑杆,两个所述定位块分别固定在两个后腿上,两个所述支撑杆可转动的设置在两个定位块上,所述定位块上设置有用于限制支撑杆转动角度的限位件,两个所述支撑杆向两侧倾斜设置。本发明包括办公椅本体、防倾倒装置、驱动装置,防倾倒装置包括两个分别固定在两个后腿上的定位块,在定位块上设置可转动的支撑杆,通过限位件限制支撑杆转动角度,当办公椅本体向后倾斜时,支撑杆受重力向后转动一定角度并抵住地面,防止办公椅本体向后倾倒,两个支撑杆向两侧倾斜设置,防止办公椅侧摔。(The invention relates to the technical field of office chairs, in particular to a solid wood office chair capable of preventing backward leaning and side falling, which comprises an office chair body, an anti-toppling device and a driving device, wherein the anti-toppling device comprises two positioning blocks and two supporting rods, the two positioning blocks are respectively fixed on two rear legs, the two supporting rods are rotatably arranged on the two positioning blocks, limiting pieces used for limiting the rotating angles of the supporting rods are arranged on the positioning blocks, and the two supporting rods are obliquely arranged towards two sides. The anti-toppling office chair comprises an office chair body, an anti-toppling device and a driving device, wherein the anti-toppling device comprises two positioning blocks which are respectively fixed on two rear legs, a rotatable supporting rod is arranged on each positioning block, the rotating angle of each supporting rod is limited by a limiting piece, when the office chair body is tilted backwards, each supporting rod is rotated backwards by a certain angle under the action of gravity and abuts against the ground, the office chair body is prevented from toppling backwards, and the two supporting rods are obliquely arranged towards two sides to prevent the office chair from toppling sideways.)

1. The utility model provides a prevent pitch-back and wood office chair that side falls which characterized in that: the anti-toppling device comprises an office chair body (1), an anti-toppling device (2) and a driving device (3), wherein the office chair body (1) comprises a seat plate (11), a backrest (12) and chair legs (13), the backrest (12) is rotatably installed at the rear end of the seat plate (11), the chair legs (13) are supported below the seat plate (11), the chair legs (13) comprise two front legs (131) and two rear legs (132), the anti-toppling device (2) comprises two positioning blocks (21) and two supporting rods (22), the two positioning blocks (21) are respectively fixed on the two rear legs (132), the two supporting rods (22) are rotatably arranged on the two positioning blocks (21), the positioning blocks (21) are provided with limiting parts (23) for limiting the rotation angles of the supporting rods (22), and when the office chair body (1) is tilted backwards, the support rods (22) rotate backwards by a certain angle under the action of gravity and abut against the ground, the two support rods (22) are obliquely arranged towards two sides, and the driving device (3) is arranged on the seat plate (11) and used for driving the backrest (12) to rotate.

2. The solid wood office chair of claim 1, wherein the solid wood office chair is adapted to prevent reclining and side falling, and further comprises: be provided with first commentaries on classics board (111) and first bull stick (112) on seat (11), the bottom of first commentaries on classics board (111) is provided with first cushion (113), the setting that first commentaries on classics board (111) can overturn is on first bull stick (112).

3. The solid wood office chair of claim 2, wherein the solid wood office chair is characterized in that: the bottom of first commentaries on classics board (111) is provided with extension support piece (4), extension support piece (4) are including carriage (41) and fix second cushion (42) in carriage (41), the rotatable setting in the tip of first commentaries on classics board (111) of carriage (41).

4. The solid wood office chair of claim 2, wherein the solid wood office chair is characterized in that: the seat plate (11) is provided with a first fixing device (114), and the first fixing device (114) is used for fixing the first rotating plate (111) after the first rotating plate (111) is turned over.

5. The solid wood office chair of claim 1, wherein the solid wood office chair is adapted to prevent reclining and side falling, and further comprises: handrails (115) are arranged on two sides of the seat plate (11).

6. The solid wood office chair of claim 1, wherein the solid wood office chair is adapted to prevent reclining and side falling, and further comprises: the backrest (12) is provided with a second rotating plate (121) and a second rotating rod (122), the bottom of the second rotating plate (121) is provided with a third cushion (123), and the second rotating plate (121) can be arranged on the second rotating rod (122) in a turnover mode.

7. The anti-back and side-fall solid wood office chair of claim 6, wherein: the backrest (12) is provided with a second fixing device (124), and the second fixing device (124) is used for fixing the second rotating plate (121) after the second rotating plate (121) is turned over.

8. The anti-back and side-fall solid wood office chair of claim 6, wherein: a pillow (125) is arranged on the third cushion (123).

9. The solid wood office chair of claim 1, wherein the solid wood office chair is adapted to prevent reclining and side falling, and further comprises: the bottom of each of the two support rods (22) is provided with a support block (24), and a connecting rod (25) is arranged between the two support blocks (24) and connected through the connecting rod (25).

10. The solid wood office chair of claim 1, wherein the solid wood office chair is adapted to prevent reclining and side falling, and further comprises: the backrest is characterized in that supporting legs (126) are arranged at the end parts of the backrest (12), the supporting legs (126) are rotatably arranged on the outer side of the backrest (12), limiting structures (127) are arranged on the supporting legs (126), and the limiting structures (127) are used for limiting the rotating angle of the supporting legs (126) to be not more than 90 degrees.

Technical Field

The invention relates to the technical field of office chairs, in particular to a solid wood office chair capable of preventing backward leaning and side falling.

Background

As is well known, the office chair is the essential seat of people at work life, and people sit on the office chair and when the people at rear communicate, can habitual the communication of bowing backward, when the angle of bowing backward is too big, the office chair is difficult to support people's gravity, causes very easily that bowing backward falls down, not only can make office chair supporting component damaged, serious still can strike the head, makes the people who sits on the chair be injured, and such life habit is difficult to the change and easily causes danger.

The patent with the application number of CN202011214651.2 discloses a backward tilting and side falling prevention office chair, which comprises a shell, wherein a detection cavity is arranged at the lower left of the shell, a bent groove fixing rod is fixedly arranged on the upper side wall of the detection cavity, a bent groove is fixedly arranged at the lower side of the bent groove fixing rod, touch switches are fixedly arranged on the left end wall and the right end wall of the bent groove, a gravity ball is arranged in the bent groove in a sliding manner, a gravity ball shaft is arranged at the rear side of the gravity ball in a rotating manner, a gravity ball wheel is fixedly arranged at the rear side of the gravity ball shaft, and double-meshing wheel shafts are arranged on the rear side wall of the detection cavity in a rotating manner; the anti-falling office chair can effectively prevent the too large backward angle from avoiding the falling of the office chair when a user habitually leans backwards, causes safety accidents, quickly makes a response, is attached to the ground according to the backward angle to vertically extend out of the supporting block, and simultaneously, the damping motor is started, so that the vibration transmitted to the back during instant shaking is reduced, the comfort is improved, and meanwhile, the side head protection block is extended out to prevent the side falling head from being injured.

The office chair of above-mentioned patent can prevent that the angle of bending back is too big, avoids the office chair to fall down, also can prevent that the office chair side from falling. However, the design of the office chair is too complex, and the complex structure can only prevent the office chair from falling backwards and falling sideways, so the practicability is low, and the office chair has a heavy structure, is inconvenient to use and is easy to damage.

Disclosure of Invention

The invention aims to at least solve one of the technical problems in the prior art and provides a solid wood office chair capable of preventing backward leaning and side falling.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a solid wood office chair capable of preventing backward leaning and side falling, which comprises an office chair body, an anti-tipping device and a driving device, the office chair body comprises a seat plate, a backrest and chair legs, the backrest is rotatably arranged at the rear end of the seat plate, the chair legs are supported below the seat plate and comprise two front legs and two rear legs, the anti-toppling device comprises two positioning blocks and two supporting rods, the two positioning blocks are respectively fixed on the two rear legs, the two supporting rods are rotatably arranged on the two positioning blocks, the positioning blocks are provided with limiting pieces for limiting the rotating angles of the supporting rods, when the office chair body inclines backward, the bracing piece receives gravity to rotate certain angle backward and supports ground, two the bracing piece sets up to both sides slope, drive arrangement sets up on the seat for the drive back rotates.

Furthermore, be provided with first commentaries on classics board and first bull stick on the seat, the bottom of first commentaries on classics board is provided with first cushion, the setting that first commentaries on classics board can overturn is on first bull stick.

Furthermore, the bottom of the first rotating plate is provided with an extending support piece, the extending support piece comprises a support frame and a second cushion fixed in the support frame, and the support frame is rotatably arranged at the end part of the first rotating plate.

Furthermore, a first fixing device is arranged on the seat plate and used for fixing the first rotating plate after the first rotating plate is turned over.

Furthermore, handrails are arranged on two sides of the seat plate.

Furthermore, a second rotating plate and a second rotating rod are arranged on the backrest, a third cushion is arranged at the bottom of the second rotating plate, and the second rotating plate can be arranged on the second rotating rod in a turnover mode.

Furthermore, a second fixing device is arranged on the backrest and used for fixing the second rotating plate after the second rotating plate is turned over.

Further, a pillow is arranged on the third soft cushion.

Furthermore, the bottoms of the two support rods are provided with support blocks, and a connecting rod is arranged between the two support blocks and connected with the support blocks through the connecting rod.

Furthermore, the end of the backrest is provided with a supporting leg, the supporting leg is rotatably arranged on the outer side of the backrest, the supporting leg is provided with a limiting structure, and the limiting structure is used for limiting the rotating angle of the supporting leg to be not more than 90 degrees.

The invention has the beneficial effects that: from the above description of the invention, it can be seen that, compared with the prior art, the anti-back-bending and side-falling solid wood office chair of the invention comprises an office chair body, an anti-falling device and a driving device, wherein the office chair body comprises a seat plate, a backrest and chair legs, the backrest is rotatably mounted at the rear end of the seat plate, the backrest is driven to rotate by the driving device to adjust the angle of the backrest, so that the chair is more comfortable, the seat plate is supported by the chair legs, the anti-falling device comprises two positioning blocks respectively fixed on the two rear legs, a rotatable supporting rod is arranged on the positioning blocks, the rotation angle of the supporting rod is limited by a limiting block, when the office chair body tilts backwards, the supporting rod rotates backwards by a certain angle under the gravity and abuts against the ground, the supporting rod is blocked by the limiting block, a stable triangular structure is formed by the rear legs to prevent the office chair body from tilting backwards, the two supporting rods tilt backwards, when the office chair body inclines to the lateral part, the supporting rod props against the ground to one side, and the office chair is prevented from falling off laterally.

Drawings

FIG. 1 is a schematic side view of a solid wood office chair with anti-recline and anti-side-fall features in accordance with a preferred embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of FIG. 1 at B;

FIG. 4 is a rear schematic view of a solid wood office chair with back-facing and side-fall prevention in accordance with a preferred embodiment of the present invention;

FIG. 5 is a schematic top view of a solid wood office chair with back-bending and side-falling prevention as a rest bed according to the preferred embodiment of the invention;

FIG. 6 is a schematic side view of a solid wood office chair with back-up and side-fall prevention as a lounge bed according to the preferred embodiment of the invention;

reference numerals: 1. an office chair body; 2. an anti-toppling device; 3. a drive device; 4. an extension support; 11. a seat plate; 12. a backrest; 13. a chair leg; 21. positioning blocks; 22. a support bar; 23. a limiting member; 24. a support block; 25. a connecting rod; 41. a support frame; 42. a second cushion; 111. a first rotating plate; 112. a first rotating lever; 113. a first cushion; 114. a first fixing device; 115. a handrail; 121. a second rotating plate; 122. a second rotating rod; 123. a third cushion; 124. a second fixing device; 125. a pillow; 126. supporting legs; 127. a limiting structure; 131. a front leg; 132. a rear leg.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 6, in a preferred embodiment of the present invention, an anti-back-up and side-fall solid wood office chair comprises an office chair body 1, an anti-toppling device 2 and a driving device 3, wherein the office chair body 1 comprises a seat plate 11, a backrest 12 and chair legs 13, the backrest 12 is rotatably installed at the rear end of the seat plate 11, the chair legs 13 are supported below the seat plate 11, the chair legs 13 comprise two front legs 131 and two rear legs 132, the anti-toppling device 2 comprises two positioning blocks 21 and two supporting rods 22, the two positioning blocks 21 are respectively fixed on the two rear legs 132, the two supporting rods 22 are rotatably arranged on the two positioning blocks 21, the positioning blocks 21 are provided with limiting members 23 for limiting the rotation angle of the supporting rods 22, when the office chair body 1 is tilted backwards, the supporting rods 22 are rotated by a certain angle backwards by gravity and abut against the ground, the two support rods 22 are arranged obliquely towards two sides, and the driving device 3 is arranged on the seat plate 11 and used for driving the backrest 12 to rotate.

The invention relates to a solid wood office chair capable of preventing backward tilting and side falling, which comprises an office chair body 1, an anti-toppling device 2 and a driving device 3, wherein the office chair body 1 comprises a seat plate 11, a backrest 12 and chair legs 13, the backrest 12 is rotatably arranged at the rear end of the seat plate 11, the backrest 12 is driven to rotate through the driving device 3 so as to adjust the angle of the backrest 12, the seat plate 11 is supported through the chair legs 13, the anti-toppling device 2 comprises two positioning blocks 21 respectively fixed on the two rear legs 132, a rotatable supporting rod 22 is arranged on the positioning block 21, the rotating angle of the supporting rod 22 is limited through a limiting piece 23, when the office chair body 1 is tilted backwards, the supporting rod 22 rotates backwards for a certain angle under the gravity and abuts against the ground, the supporting rod 22 is clamped by the limiting piece 23 and forms a stable triangular structure with the rear legs 132 so as to prevent the office chair body 1 from toppling backwards, the two support rods 22 are obliquely arranged towards two sides, and when the office chair body 1 is inclined towards the side part, the support rods 22 prop against the ground towards one side to prevent the office chair from falling.

As a preferred embodiment of the present invention, it may also have the following additional technical features:

in this embodiment, the seat plate 11 is provided with a first rotating plate 111 and a first rotating rod 112, the bottom of the first rotating plate 111 is provided with a first soft pad 113, and the first rotating plate 111 is arranged on the first rotating rod 112 in a reversible manner. The first rotating plate 111 and the first rotating rod 112 are arranged on the seat plate 11, the first cushion 113 is arranged at the bottom of the first rotating plate 111, the first rotating plate 111 can be turned over on the first rotating rod 112, a user can turn over the first rotating plate 111 according to the preference, and the supporting surface of the seat plate 11 is adjusted to be a hard surface or a soft surface, so that the use is more convenient. More specifically, the seat 11 is provided with a first frame structure around the first rotating plate 111, the first rotating plate 111 is arranged inside the first frame structure, the first rotating rod 112 penetrates through the seat 11, two ends of the first rotating rod 112 are respectively fixed on two front and rear inner walls of the first frame structure and are located in the middle of the first frame structure, and the first rotating plate 111 rotates around the first rotating rod 112 to realize the up-and-down turning in the first frame structure.

In this embodiment, the bottom of the first rotating plate 111 is provided with an extending support 4, the extending support 4 includes a support frame 41 and a second cushion 42 fixed in the support frame 41, and the support frame 41 is rotatably disposed at the end of the first rotating plate 111. An extension support 4 is arranged at the bottom of the first rotating plate 111, the extension support 4 comprises a support frame 41 and a second soft cushion 42 fixed in the support frame 41, when a user needs to lie down for rest, the backrest 12 can be rotated to the horizontal position through the driving device 3, the extension support 4 is rotated outwards and extended, and the solid wood office chair is changed into a rest bed so that the user can rest.

In this embodiment, the seat plate 11 is provided with a first fixing device 114, and the first fixing device 114 is used for fixing the first rotating plate 111 after the first rotating plate 111 is turned over. The first fixing device 114 is disposed on the seat plate 11, and the first rotating plate 111 is fixed by the first fixing device 114 after the first rotating plate 111 is turned over, so as to prevent the first rotating plate 111 from shaking, and the first fixing device 114 may be formed by matching a lock bolt with a bolt hole, but is not limited thereto.

In this embodiment, armrests 115 are disposed on two sides of the seat plate 11. The armrests 115 are disposed on both sides of the seat plate 11, so that a user can rest on the armrests 115, and when the office chair is changed into a rest bed, the armrests 115 can prevent the user from falling down when lying down for rest.

In this embodiment, the backrest 12 is provided with a second rotating plate 121 and a second rotating rod 122, the bottom of the second rotating plate 121 is provided with a third soft pad 123, and the second rotating plate 121 is arranged on the second rotating rod 122 in a reversible manner. The backrest 12 is provided with the second rotating plate 121 and the second rotating rod 122, the bottom of the second rotating plate 121 is provided with the third soft cushion 123, the second rotating plate 121 can be turned over on the second rotating rod 122, a user can turn over the second rotating plate 121 according to the preference, and the supporting surface of the backrest 12 is adjusted to be a hard surface or a soft surface, so that the use is more convenient. More specifically, the backrest 12 is provided with a second frame structure around the second rotating plate 121, the second rotating plate 121 is disposed inside the second frame structure, the second rotating rod 122 penetrates through the backrest 12, two ends of the second rotating rod 122 are respectively fixed on the front and rear inner walls of the second frame structure and located in the middle of the second frame structure, and the second rotating plate 121 rotates around the second rotating rod 122 to realize the up-and-down turning in the second frame structure.

In this embodiment, the backrest 12 is provided with a second fixing device 124, and the second fixing device 124 is used for fixing the second rotating plate 121 after the second rotating plate 121 is turned over. The second fixing device 124 is disposed on the backrest 12, and the second rotating plate 121 is fixed by the second fixing device 124 after the second rotating plate 121 is turned over, so as to prevent the second rotating plate 121 from shaking, which is more stable, and the second fixing device 124 may be formed by matching a lock bolt with a bolt hole, but is not limited thereto.

In this embodiment, a pillow 125 is disposed on the third cushion 123. The pillow 125 is disposed on the third soft cushion 123, and when the office chair is changed into a rest bed, the pillow 125 is disposed to facilitate the user to lie down for rest.

In this embodiment, the bottom of each of the two support rods 22 is provided with a support block 24, and a connecting rod 25 is disposed between the two support blocks 24 and connected by the connecting rod 25. Set up supporting shoe 24 in the bottom of bracing piece 22 to the area of contact on increase and ground, it is more firm to support, prevents to pitch back and falls and the side falls, connects through connecting rod 25 between two bracing pieces 22, makes two bracing pieces 22 move in step, and when the office chair pitches back, common atress supports more firmly.

In this embodiment, a supporting leg 126 is disposed at an end of the backrest 12, the supporting leg 126 is rotatably disposed at an outer side of the backrest 12, a limiting structure 127 is disposed on the supporting leg 126, and the limiting structure 127 is used for limiting a rotation angle of the supporting leg 126 to not exceed 90 degrees. The end part of the backrest 12 is provided with a rotatable supporting leg 126, when the office chair is changed into a rest bed, the supporting leg 126 is contacted with the ground by rotating the supporting leg 126 to support the backrest 12, the rotating angle of the supporting leg 126 is limited by a limiting structure 127, the rotating angle of the supporting leg 126 is not more than 90 degrees, and the supporting leg 126 is not rotated after being contacted with the ground, so that the supporting leg 126 is more stable.

The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.