CN218457726U

CN218457726U - Wood chair with adjustable backrest

Info

Publication number: CN218457726U
Application number: CN202222925635.5U
Authority: CN
Inventors: 陈妍; 吴晓倩; 陈练达
Original assignee: Fuzhou Dahua Furniture Manufacturing Co ltd
Current assignee: Fuzhou Dahua Furniture Manufacturing Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-02-10
Anticipated expiration: 2032-11-03

Abstract

The utility model relates to the technical field of household appliances, and a wooden chair with adjustable back is disclosed, including chassis, back, adjusting device and protector, the back is installed in the upper end of chassis, adjusting device installs in the centre of chassis and back, protector installs in adjusting device's inboard, adjusting device includes rotation unit, fixed unit and chucking unit, fixed unit installs in rotation unit's inboard, the chucking unit is installed in rotation unit's upper end. This wooden chair with adjustable back through having installed the regulating unit additional, when needs were adjusted the back, only need push forward the back, later the dead lever roll-off in the gear, adjust to suitable angle after, push back the back, the spring made dead lever and slider descend simultaneously this moment with slider pushing down, during the dead lever card goes into the gear this moment, had reached and had carried out the effect of adjusting to the back to solve above-mentioned problem.

Description

Wood chair with adjustable backrest

Technical Field

The utility model relates to the technical field of living appliances, in particular to a wood chair with an adjustable backrest.

Background

The chair is a daily life furniture, a seat with a backrest and armrests, modern chairs pursue beauty and fashion, some chairs are not used as seats alone any more, and human life is more convenient under the combination of science and technology.

The surface of the backrest chair is generally square, and is provided with a backrest and an arched head. The shape of the chair is characterized in that the backrest has no armrest, and the backrest can not be raised, and the backrest of the chair has different forms and is called as a 'one-stone-like' chair. The other is called a lamp hanging chair, and the cross beam of the lamp hanging chair is provided with two columns which are slightly tilted upwards just like a lamp post of a flip lamp, so the name is obtained.

The chair has high utilization rate in daily life, but the chair can generate uncomfortable condition of long sitting according to different use habits and sitting postures of individuals, so the chair is not suitable for all people, and the chair needs to be improved so as to meet the requirements of most people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wooden chair with adjustable back to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a wooden chair with adjustable back, includes chassis, back, adjusting device and protector, the back is installed in the upper end of chassis, adjusting device installs in the middle part of chassis and back, protector installs in adjusting device's inboard.

Preferably, the adjusting device includes a rotating unit, a fixing unit and a clamping unit, the fixing unit is installed at the inner side of the rotating unit, and the clamping unit is installed at the upper end of the rotating unit.

Preferably, the rotating unit comprises a rotating block and a bearing, the rotating block is fixedly mounted at the bottom end of the backrest, the circular hole is formed in the surface of the rotating block, and the outer wall of the bearing is fixedly mounted on the inner wall of the circular hole.

Preferably, the fixing unit comprises a rotating rod, a fixing block and a gear, the rotating rod is fixedly installed on the inner wall of the bearing, the right end of the rotating rod is fixedly installed on the surface of the fixing block, the fixing block is fixedly installed at the top end of the bottom frame, the gear is installed on the surface of the rotating rod, and the gear is installed in the middle of the rotating block and the fixing block.

Preferably, the clamping unit comprises a fixing rod, a sliding block, a spring and a lifting block, the fixing rod is fixedly installed at the right end of the sliding block, the rectangular hole is formed in the upper end of the circular hole, the sliding block is slidably installed on the inner wall of the rectangular hole, the top end of the spring is fixedly installed on the upper wall of the rectangular hole, the bottom end of the spring is fixedly installed at the top end of the sliding block, and the lifting block is fixedly installed at the left end of the sliding block.

Preferably, the protection device comprises a protection plate and an arc-shaped plate, the protection plate is fixedly installed on the right side of the fixing block, and the arc-shaped plate is fixedly installed on the left side of the protection plate.

Preferably, the protection devices of the adjusting device are symmetrically arranged left and right, and the underframe is rotatably connected with the backrest through the adjusting device.

Compared with the prior art, the utility model provides a wooden chair with adjustable back possesses following

Has the advantages that:

1. this wood chair with adjustable back through having installed the regulating unit additional, when needs are adjusted the back, only needs to push forward the back, and later the dead lever roll-off in the gear, adjusts to suitable angle after, pushes away the back backward, and the spring pushes down the slider this moment, makes dead lever and slider descend simultaneously, and the dead lever card has reached and has carried out the effect of adjusting to the back this moment in the gear to solve above-mentioned problem.

2. This wooden chair with adjustable back through having installed protector additional, when carrying out the regulation to the back, the arc can cover the gap at gear middle part, has reached the effect of protection to solve above-mentioned problem.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic view of the structure of the adjustable device of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

fig. 4 is a schematic structural view of the protection device of the present invention.

In the figure: 1. a chassis; 2. a backrest; 3. an adjustment device; 301. rotating the block; 302. a circular hole; 303. a bearing; 304. a rotating rod; 305. a fixed block; 306. a gear; 307. fixing the rod; 308. a slider; 309. a spring; 310. a lifting block; 311. a rectangular hole; 4. a guard; 401. a protection plate; 402. an arc-shaped plate.

Detailed Description

The technical solutions in the embodiments 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 some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Referring to fig. 1-4, the present invention provides a technical solution: a wooden chair with an adjustable backrest comprises an underframe 1, a backrest 2, an adjusting device 3 and a protecting device 4, wherein the backrest 2 is installed at the upper end of the underframe 1, the protecting device 4 of the adjusting device 3 is installed in bilateral symmetry, the underframe 1 and the backrest 2 are rotatably connected through the adjusting device 3, the adjusting device 3 is installed in the middle of the underframe 1 and the backrest 2, the adjusting device 3 comprises a rotating unit, a fixing unit and a clamping unit, the fixing unit is installed on the inner side of the rotating unit, the clamping unit is installed at the upper end of the rotating unit, the rotating unit comprises a rotating block 301 and a bearing 303, the rotating block 301 is fixedly installed at the bottom end of the backrest 2, the circular hole 302 is opened on the surface of the rotating block 301, the outer wall of the bearing 303 is fixedly installed on the inner wall of the circular hole 302, the fixing unit comprises a rotating rod 304, a fixing block 305 and a gear 306, the rotating rod 304 is fixedly installed on the inner wall of the bearing 303, the right end of the rotating rod 304 is fixedly arranged on the surface of the fixed block 305, the fixed block 305 is fixedly arranged on the top end of the base frame 1, the gear 306 is arranged on the surface of the rotating rod 304, the gear 306 is arranged in the middle of the rotating block 301 and the fixed block 305, the clamping unit comprises a fixed rod 307, a sliding block 308, a spring 309 and a lifting block 310, the fixed rod 307 is fixedly arranged on the right end of the sliding block 308, a rectangular hole 311 is formed in the upper end of the circular hole 302, the sliding block 308 is slidably arranged on the inner wall of the rectangular hole 311, the top end of the spring 309 is fixedly arranged on the upper wall of the rectangular hole 311, the bottom end of the spring 309 is fixedly arranged on the top end of the sliding block 308, the lifting block 310 is fixedly arranged on the left end of the sliding block 308, the wooden chair with the adjustable backrest is provided with the adjusting device 3, when the backrest needs to be adjusted, the backrest 2 only needs to be pushed forwards, then the fixed rod 307 slides out in the gear 306 and is adjusted to a proper angle, push the back backward, spring 309 pushes down slider 308 this moment, make dead lever 307 descend with slider 308 simultaneously, dead lever 307 card is gone into in gear 306 this moment, the effect of adjusting back 2 back has been reached, thereby solve above-mentioned problem, protector 4 is installed in adjusting device 3's inboard, protector 4 includes guard plate 401 and arc 402, guard plate 401 fixed mounting is in the right side of fixed block 305, arc 402 fixed mounting is in the left side of guard plate 401, this adjustable wooden chair of back, through installing protector 4 additional, when carrying out the regulation to back 2, arc 402 can cover the gap in gear 306 middle part, the effect of protection has been reached, thereby solve above-mentioned problem.

In the actual operation process, when the device is used, the device is firstly placed flatly, then the backrest 2 is pushed forwards, the backrest 2 rotates forwards to drive the rotating block 301 to rotate, the rotating block 301 drives the bearing 303 to rotate, at this time, the spring 309 is squeezed and contracted, then the sliding block 308 moves forwards to enable the fixed rod 307 to be separated from the gear 306, then the fixed rod enters the latch of the gear 306 again through the resilience of the spring 309, the operation is repeated until the required angle is adjusted, if the angle needs to be adjusted backwards, only the lifting block 310 needs to be lifted, then the lifting block 310 drives the sliding block 308 to slide upwards in the rectangular hole 311, so that the spring 309 is squeezed and contracted, the sliding block 308 is lifted to enable the fixed rod 307 to slide out of the gear 306, then the backrest 2 is pushed backwards, the lifting block 310 is put down after the angle is adjusted to a proper angle, so that the spring 309 rebounds to enable the fixed rod 307 to be clamped in the gear 306, at this time, the adjustment of the angle of the backrest 2 is completed, and the use of the device is completed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element described by the phrase "comprising a. -" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides a wooden chair with adjustable back, includes chassis (1), back (2), adjusting device (3) and protector (4), its characterized in that: the backrest (2) is installed at the upper end of the bottom frame (1), the adjusting device (3) is installed in the middle of the bottom frame (1) and the backrest (2), and the protecting device (4) is installed on the inner side of the adjusting device (3).

2. The wood chair with adjustable backrest as claimed in claim 1, wherein: the adjusting device (3) comprises a rotating unit, a fixing unit and a clamping unit, wherein the fixing unit is installed on the inner side of the rotating unit, and the clamping unit is installed at the upper end of the rotating unit.

3. The wooden chair with the adjustable backrest as claimed in claim 2, wherein: the rotary unit comprises a rotating block (301) and a bearing (303), wherein the rotating block (301) is fixedly installed at the bottom end of the backrest (2), the circular hole (302) is formed in the surface of the rotating block (301), and the outer wall of the bearing (303) is fixedly installed on the inner wall of the circular hole (302).

4. The wooden chair with the adjustable backrest as claimed in claim 2, wherein: the fixing unit comprises a rotating rod (304), a fixing block (305) and a gear (306), the rotating rod (304) is fixedly installed on the inner wall of the bearing (303), the right end of the rotating rod (304) is fixedly installed on the surface of the fixing block (305), the fixing block (305) is fixedly installed at the top end of the underframe (1), the gear (306) is installed on the surface of the rotating rod (304), and the gear (306) is installed in the middle of the rotating block (301) and the fixing block (305).

5. The wooden chair with the adjustable backrest as claimed in claim 2, wherein: the clamping unit comprises a fixing rod (307), a sliding block (308), a spring (309) and a lifting block (310), wherein the fixing rod (307) is fixedly installed at the right end of the sliding block (308), a rectangular hole (311) is formed in the upper end of the circular hole (302), the sliding block (308) is slidably installed on the inner wall of the rectangular hole (311), the top end of the spring (309) is fixedly installed on the upper wall of the rectangular hole (311), the bottom end of the spring (309) is fixedly installed at the top end of the sliding block (308), and the lifting block (310) is fixedly installed at the left end of the sliding block (308).

6. The wood chair with adjustable backrest as claimed in claim 1, wherein: the protection device (4) comprises a protection plate (401) and an arc-shaped plate (402), wherein the protection plate (401) is fixedly installed on the right side of the fixing block (305), and the arc-shaped plate (402) is fixedly installed on the left side of the protection plate (401).

7. The wood chair with adjustable backrest as claimed in claim 1, wherein: the protection devices (4) of the adjusting device (3) are symmetrically arranged left and right, and the underframe (1) is rotatably connected with the backrest (2) through the adjusting device (3).