CN215650086U - Ergonomic office chair with adjustable backrest - Google Patents
Ergonomic office chair with adjustable backrest Download PDFInfo
- Publication number
- CN215650086U CN215650086U CN202023242774.5U CN202023242774U CN215650086U CN 215650086 U CN215650086 U CN 215650086U CN 202023242774 U CN202023242774 U CN 202023242774U CN 215650086 U CN215650086 U CN 215650086U
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- Prior art keywords
- cushion
- fixedly installed
- office chair
- backrest
- mounting
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- 238000009434 installation Methods 0.000 claims description 26
- 230000000694 effects Effects 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000877 morphologic effect Effects 0.000 description 2
- 206010050031 Muscle strain Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an ergonomic office chair with an adjustable backrest, which comprises a cushion, wherein two mounting blocks are fixedly arranged at the bottom of the cushion, an armrest frame is fixedly arranged inside each mounting block, a mounting box is fixedly arranged at the bottom of the cushion, a hinge block is movably arranged inside the mounting box, an arc-shaped rack is fixedly arranged on one side of the hinge block, a gear is meshed with the inner side of the arc-shaped rack, a shaft rod is fixedly arranged on the inner side of the gear, an adjusting handle is fixedly arranged at one end of the shaft rod, which is far away from the gear, a backrest plate is fixedly arranged on the back surface of the hinge block, the angle of the backrest plate is adjusted by arranging the adjusting handle, so that the backrest plate is inclined backwards, the angle of the backrest plate can be adjusted, the backrest plate is convenient to use, the angle of the backrest plate can be adjusted by directly pulling the adjusting handle, four buffer springs are fixedly arranged on the opposite sides of the two mounting plates and the backrest plate, and when the adjusting handle is pulled, the back board rebounds automatically in small amplitude, thereby greatly improving the safety performance of the office chair.
Description
Technical Field
The utility model belongs to the technical field of office chairs, and particularly relates to an ergonomic office chair with an adjustable backrest.
Background
The human engineering is a technology born after the world war of the second time, and in addition to the common modeling design, the human engineering actually comprises various aspects such as the position arrangement of buttons, the design of description characters and the like, and in summary, the so-called human engineering is essentially that the use mode of the tool is suitable for the natural form of the human body as much as possible, so that the body and the spirit of a person using the tool do not need any active adaptation when working, thereby reducing the fatigue caused by using the tool as much as possible, and the human engineering design of the mouse is mainly the modeling design of the mouse. To study this problem, it is necessary to study the natural structure of the human hand, and most of the conventional office chairs are manufactured by imitation according to ergonomics.
Office chair is as indispensable office supplies in daily office life, and its comfortable degree direct relation reaches people's office efficiency, and office chair on the existing market is because the range relation of back and cushion, and the person is leaning on the in-process of leaning on, and the back especially the waist is leaned on and is broken away from human waist, and both form unsettled state, lead to the seat to lose the support protection to human waist, and human backbone can not be supported effectively, lead to a great deal of long-time sitting to produce the tired problem of human waist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an ergonomic office chair with an adjustable backrest, which solves the problems that the backrest, particularly the waist rest of the chair is separated from the waist of a human body and the backrest and the waist rest of the chair are suspended in the air due to the amplitude relation between the backrest and a cushion when a user leans on the chair in the use process of the existing ergonomic office chair in the background technology, so that the chair loses the support and protection for the waist of the human body, the spine of the human body cannot be effectively supported, and the fatigue of the waist of the human body is caused after the user sits for a long time.
In order to achieve the purpose, the utility model provides the following technical scheme: an ergonomic office chair with an adjustable backrest comprises a cushion, wherein two installation blocks are fixedly installed at the bottom of the cushion, a handrail frame is fixedly installed in each of the two installation blocks, an installation box is fixedly installed at the bottom of the cushion, an articulated block is movably installed in each installation box, an arc-shaped rack is fixedly installed on one side of each articulated block, a gear is meshed with the inner side of each arc-shaped rack, a shaft rod is fixedly installed on the inner side of each gear, an adjusting handle is fixedly installed at one end, away from the gear, of each shaft rod, a backrest plate is fixedly installed on the back surface of each articulated block, a headrest is fixedly installed on the front surface of each backrest plate, a waist protection pad is fixedly installed on the front surface of each backrest plate, two waist pillows are fixedly installed on the bottom of the cushion, and four limit pads are fixedly installed on the two installation plates and the opposite sides of the backrest plates, and buffer springs are fixedly arranged on the opposite sides of the two mounting plates and the backrest plate.
Preferably, the bottom fixed mounting of cushion has the gas pole, one side movable mounting of gas pole has the regulation pole, the one end fixed mounting that the cushion was kept away from to the gas pole has the support frame.
Preferably, five universal wheels are fixedly mounted at the bottom of the supporting frame.
Preferably, the top of the armrest frame is provided with an armrest pad.
Preferably, one end of the shaft rod, which is far away from the gear, penetrates through the mounting box and extends to the outer side of the mounting box.
Preferably, the number of the buffer springs is four.
Compared with the prior art, the utility model has the beneficial effects that:
1. the angle of the back board can be adjusted by arranging the adjusting handle, the hinged block is movably arranged in the installation box, one end of the shaft lever, which is far away from the gear, penetrates through the installation box, the rubber ring is arranged on the inner side of a penetrating hole, the shaft lever is in a small-amplitude inclined state when the adjusting handle is pulled, teeth on the gear leave from the inner part of the arc-shaped rack, and a person sitting on an office chair leans backwards, so that the back board is inclined backwards and the angle of the back board is adjusted, therefore, the angle of the back board can be adjusted by directly pulling the adjusting handle, in addition, four buffer springs are fixedly arranged on the opposite sides of the two installation plates and the back board, on one hand, when the adjusting handle is pulled, the back board automatically rebounds in a small amplitude, on the other hand, when the adjusting handle is pulled to adjust the angle of the back board, the effect of buffering is achieved, and the harm to the person is prevented from being caused by the fact that the angle of the back board suddenly changes greatly, thereby greatly improving the safety performance of the office chair.
2. Be used for playing the support to human vertebra through setting up back cushion and waist support pad, because back cushion and waist support pad imitate according to ergonomic to reach and play the effect of alleviating fatigue to the human body, be provided with two bustle through the front at the back board in addition for protect the waist, because the bustle is made for the sponge, can change according to human morphological structure, can play good support protection to the waist, thereby played the effect that the lumbar muscle strain was alleviated to a small extent.
Drawings
FIG. 1 is a schematic perspective front view of the present invention;
FIG. 2 is a schematic bottom view of the present invention;
FIG. 3 is a schematic perspective view of an adjusting device according to the present invention;
fig. 4 is an enlarged schematic view of the structure at the position a of the present invention.
In the figure: 1. a back cushion; 2. a back board; 3. a waist pad; 4. waist protecting pad; 5. a handrail frame; 6. adjusting the handle; 7. a cushion; 8. a support frame; 9. a gas lever; 10. installing a box; 11. a gear; 12. a shaft lever; 13. a hinged block; 14. an arc-shaped rack; 15. mounting blocks; 16. mounting a plate; 17. a limiting pad; 18. a buffer spring; 19. a handrail pad; 20. a universal wheel; 21. and adjusting the rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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 of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: an ergonomic office chair with an adjustable backrest comprises a seat cushion 7, wherein two installation blocks 15 are fixedly installed at the bottom of the seat cushion 7, armrest frames 5 are fixedly installed inside the two installation blocks 15, an installation box 10 is fixedly installed at the bottom of the seat cushion 7, a hinge block 13 is movably installed inside the installation box 10, an arc-shaped rack 14 is fixedly installed on one side of the hinge block 13, a gear 11 is meshed with the inner side of the arc-shaped rack 14, a shaft rod 12 is fixedly installed on the inner side of the gear 11, an adjusting handle 6 is fixedly installed at one end, away from the gear 11, of the shaft rod 12, a backrest plate 2 is fixedly installed on the back surface of the hinge block 13, a headrest 1 is fixedly installed on the front surface of the backrest plate 2, a waist protection pad 4 is fixedly installed on the front surface of the backrest plate 2, two waist pillows 3 are fixedly installed on the front surface of the seat cushion 7, two installation plates 16 are fixedly installed at the bottom of the seat cushion 7, and four limit pads 17 are fixedly installed on the two installation plates 16 and the opposite sides of the backrest plate 2, the two mounting plates 16 are fixedly mounted with cushion springs 18 on opposite sides of the back plate 2.
In the embodiment, a user firstly sits on the waist cushion 2, the waist cushion is arranged on the front surface of the back plate 2, the waist is arranged between the two waist cushions 3 to protect the waist, the waist cushion 3 is made of sponge, the waist cushion can be changed according to the shape and structure of the human body, the waist can be well supported and protected, if the height of the office chair needs to be adjusted, the height of the office chair can be adjusted by pulling the adjusting rod 21, if the angle of the back plate 2 of the office chair needs to be adjusted, the inclination angle of the back plate 2 can be adjusted by pulling the adjusting handle 6, because the hinge block 13 is movably arranged in the installation box 10, one end of the shaft rod 12, which is far away from the gear 11, penetrates through the installation box 10, and the rubber ring is arranged on the inner side of the penetrating hole, when the adjusting handle 6 is pulled, the shaft rod 12 is in a small-amplitude inclination state, teeth on the gear 11 leave from the inner part of the arc-shaped rack 14, a person sitting on the office chair leans back to enable the backrest plate 2 to incline backwards and adjust the angle, so that the chair is convenient, the angle of the backrest plate 2 can be adjusted by directly pulling the adjusting handle 6, the adjusting handle 6 is put down after the adjustment is finished, the gear 11 is meshed inside the arc-shaped rack 14 to be locked and fixed, the backrest plate 2 is prevented from loosening, and in addition, four buffer springs 18 are fixedly installed on the two installation plates 16 and the opposite side of the backrest plate 2, so that on one hand, when the adjusting handle 6 is pulled, the backrest plate 2 automatically rebounds in a small amplitude, on the other hand, when the adjusting handle 6 is pulled to adjust the angle of the backrest plate 2, the buffer effect is achieved, the situation that the back plate 2 is damaged by sudden large change of the angle is avoided, and the safety performance of the office chair is greatly improved.
Specifically, the bottom of the cushion 7 is fixedly provided with an air rod 9, one side of the air rod 9 is movably provided with an adjusting rod 21, and one end of the air rod 9 far away from the cushion 7 is fixedly provided with a supporting frame 8.
In this embodiment, can make the gas pole 9 change the height through pulling regulation pole 21 to the user can adjust the height of office chair according to self demand, and the effect of support frame 8 is the gravity of decomposing office chair and installs universal wheel 20.
Specifically, five universal wheels 20 are fixedly mounted at the bottom of the support frame 8.
In this embodiment, the function of the universal wheels 20 is to facilitate the movement of the office chair by the user.
Specifically, the top of the armrest frame 5 is provided with an armrest pad 19.
In this embodiment, the armrest pad 19 is used to make it more comfortable for the user to place his or her arm on the armrest frame 5.
Specifically, one end of the shaft 12, which is far away from the gear 11, penetrates through the mounting box 10 and extends to the outside of the mounting box 10.
In this embodiment, one end of the shaft rod 12, which is far away from the gear 11, penetrates through the installation box 10, and a rubber ring is installed inside a hole penetrating through the installation box, so that when the adjustment handle 6 is pulled, the shaft rod 12 is in a small-amplitude inclined state, teeth on the gear 11 leave from the inside of the arc-shaped rack 14, and a person sitting on the office chair leans backwards, so that the backrest plate 2 is inclined backwards, and the angle is adjusted.
Specifically, the number of the buffer springs 18 is four.
In this embodiment, the buffer spring 18 is used for automatically rebounding the backboard 2 in a small amplitude when the adjusting handle 6 is pulled, and for buffering when the adjusting handle 6 is pulled to adjust the angle of the backboard 2, so as to prevent the backboard 2 from being damaged by a large angle suddenly, thereby greatly improving the safety performance of the office chair.
The working principle and the using process of the utility model are as follows: when the ergonomic office chair is used, a user firstly sits on the ergonomic office chair, the ergonomic office chair depends on the front surface of the backrest plate 2, the waist is arranged between the two waist pads 3 to protect the waist, the waist pads 3 are made of sponge and can be changed according to the morphological structure of the human body, the waist can be well supported and protected, if the height of the office chair needs to be adjusted, the height of the office chair can be adjusted by pulling the adjusting rod 21, if the angle of the backrest plate 2 of the office chair needs to be adjusted, the inclination angle of the backrest plate 2 can be adjusted by pulling the adjusting handle 6, because the hinge block 13 is movably arranged in the installation box 10, one end of the shaft rod 12, which is far away from the gear 11, penetrates through the installation box 10, the rubber ring is arranged on the inner side of the penetrating hole, the shaft rod 12 can be in a small-amplitude inclined state when the adjusting handle 6 is pulled, and teeth on the gear 11 leave from the inner part of the arc-shaped rack 14, a person sitting on the office chair leans back to enable the backrest plate 2 to incline backwards and adjust the angle, so that the chair is convenient, the angle of the backrest plate 2 can be adjusted by directly pulling the adjusting handle 6, the adjusting handle 6 is put down after the adjustment is finished, the gear 11 is meshed inside the arc-shaped rack 14 to be locked and fixed, the backrest plate 2 is prevented from loosening, and in addition, four buffer springs 18 are fixedly installed on the two installation plates 16 and the opposite side of the backrest plate 2, so that on one hand, when the adjusting handle 6 is pulled, the backrest plate 2 automatically rebounds in a small amplitude, on the other hand, when the adjusting handle 6 is pulled to adjust the angle of the backrest plate 2, the buffer effect is achieved, the situation that the back plate 2 is damaged by sudden large change of the angle is avoided, and the safety performance of the office chair is greatly improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An ergonomic office chair with adjustable backrest, comprising a seat (7), characterized in that: the back cushion is characterized in that two installation blocks (15) are fixedly installed at the bottom of the cushion (7), a handrail frame (5) is fixedly installed in the two installation blocks (15), an installation box (10) is fixedly installed at the bottom of the cushion (7), an articulated block (13) is movably installed in the installation box (10), an arc-shaped rack (14) is fixedly installed on one side of the articulated block (13), a gear (11) is meshed with the inner side of the arc-shaped rack (14), a shaft rod (12) is fixedly installed on the inner side of the gear (11), an adjusting handle (6) is fixedly installed at one end, far away from the gear (11), of the shaft rod (12), a back plate (2) is fixedly installed on the back side of the articulated block (13), a back cushion (1) is fixedly installed on the front side of the back plate (2), and a waist protection cushion (4) is fixedly installed on the front side of the back plate (2), the positive fixed mounting of back board (2) has two waist pillows (3), the bottom fixed mounting of cushion (7) has two mounting panels (16), two the equal fixed mounting in opposite side of mounting panel (16) and back board (2) has four spacing pads (17), two mounting panel (16) and the opposite side fixed mounting of back board (2) has buffer spring (18).
2. An ergonomic office chair as claimed in claim 1, wherein the backrest is adjustable: the bottom fixed mounting of cushion (7) has gas pole (9), one side movable mounting of gas pole (9) has regulation pole (21), the one end fixed mounting that cushion (7) were kept away from in gas pole (9) has support frame (8).
3. An ergonomic office chair with adjustable backrest as claimed in claim 2, wherein: five universal wheels (20) are fixedly mounted at the bottom of the support frame (8).
4. An ergonomic office chair as claimed in claim 1, wherein the backrest is adjustable: and the top of the armrest frame (5) is provided with an armrest pad (19).
5. An ergonomic office chair as claimed in claim 1, wherein the backrest is adjustable: one end of the shaft rod (12), which is far away from the gear (11), penetrates through the mounting box (10) and extends to the outer side of the mounting box (10).
6. An ergonomic office chair as claimed in claim 1, wherein the backrest is adjustable: the number of the buffer springs (18) is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023242774.5U CN215650086U (en) | 2020-12-29 | 2020-12-29 | Ergonomic office chair with adjustable backrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023242774.5U CN215650086U (en) | 2020-12-29 | 2020-12-29 | Ergonomic office chair with adjustable backrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215650086U true CN215650086U (en) | 2022-01-28 |
Family
ID=79949817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023242774.5U Expired - Fee Related CN215650086U (en) | 2020-12-29 | 2020-12-29 | Ergonomic office chair with adjustable backrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215650086U (en) |
-
2020
- 2020-12-29 CN CN202023242774.5U patent/CN215650086U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |