CN213154944U

CN213154944U - Chair with self-adaptive backrest

Info

Publication number: CN213154944U
Application number: CN202021480262.XU
Authority: CN
Inventors: 黄林
Original assignee: Foshan Youke Industrial Design Co ltd
Current assignee: Foshan Youke Industrial Design Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-05-11
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a chair of self-adaptation back, the camera includes a supporting plate, the top fixed mounting of backup pad has two stands, and the fixed slot has all been seted up on the top of two stands, and equal slidable mounting has the support column in two fixed slots, and outside the top of support column extended to the fixed slot, the top fixed mounting of two support columns had same seat board, and the equal fixed mounting in bottom of two support columns has the spring, the bottom of two springs respectively with the bottom inner wall fixed connection of corresponding fixed slot. The utility model relates to a rationally, the practicality is good, and when people sat on the seat board and had a rest, different according to people's height, the position of sitting is different, and the back board can be removed to people's back direction automatically, utilizes the back board to carry out effective support to people's back, is applicable to the people to different heights and uses, satisfies people's user demand, and people are standing up in addition, and seat board and back board can automatic re-setting, return to the most initial position.

Description

Chair with self-adaptive backrest

Technical Field

The utility model relates to a chair technical field specifically is a chair of self-adaptation back.

Background

The chair is a thing to sit on that has the back, some have the handrail, and the chair is a daily life furniture comparatively commonly used, and nowadays, along with the continuous improvement of people's living standard, the kind of chair also is diversified, and the back is the important component part of chair, and when people sat on the chair, utilize the back to support people's back for can rely on when people sit on the chair to have a rest on the back.

However, in the prior art, the backrest of a common chair is usually fixedly mounted, the position of the backrest cannot be automatically adjusted according to the height of a user, and when people with different heights sit on the chair, the distances between the back of a human body and the backrest are different, so that the backrest of the chair cannot effectively support the users with different heights, and the use requirements of the people cannot be met.

Disclosure of Invention

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a chair of self-adaptation back has solved the back on the current chair and is fixed mounting usually, and the position of back can not carry out automatically regulated according to user's height, leads to the back on the chair can not effectively support the user of different heights, can not satisfy people's user demand's problem.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a chair with a self-adaptive backrest comprises a supporting plate, wherein two upright posts are fixedly installed at the top of the supporting plate, fixing grooves are formed in the top ends of the two upright posts, supporting columns are slidably installed in the two fixing grooves, the top ends of the supporting columns extend out of the fixing grooves, the same seat plate is fixedly installed at the top ends of the two supporting columns, springs are fixedly installed at the bottoms of the two supporting columns, the bottom ends of the two springs are respectively fixedly connected with the inner walls of the bottoms of the corresponding fixing grooves, a first rack is fixedly installed at one side of each supporting column, the top of the first rack extends out of the fixing groove, two positioning plates are fixedly installed at the top of the supporting plate, mounting holes are formed in the sides, close to each other, of the two positioning plates, a rotating shaft is rotatably installed in the two mounting holes, the two ends of the rotating, corresponding through-hole is run through respectively to the one end that two pivots are close to each other, the equal fixed mounting in one end that two pivots are close to each other has first gear, two first gears mesh with corresponding first rack respectively, the equal fixed cover in one end that two pivots were kept away from each other is equipped with the second gear, two spouts have been seted up at the top of backup pad, equal slidable mounting has the slide in two spouts, outside the top of slide extends the axle spout, the equal fixed mounting in top of two slides has the second rack, two second gears mesh with corresponding second rack respectively, the equal fixed mounting in one side that two slides were kept away from each other has the fixed diaphragm that is located the backup pad top, the equal fixed mounting in top of two fixed diaphragms has the montant, two montants are located the both sides of seat board, the top fixed mounting of two montants has same.

Preferably, four supporting legs are fixedly mounted at the bottom of the supporting plate, and the four supporting legs are arranged in a pairwise symmetrical mode.

Preferably, the limiting grooves are formed in the inner walls of the two sides of the fixing groove, limiting rods are fixedly mounted on the two sides of the supporting column, and the limiting rods are slidably mounted in the corresponding limiting grooves.

Preferably, bearings are fixedly sleeved on the two rotating shafts, and outer rings of the two bearings are fixedly connected with the inner walls of the corresponding mounting holes respectively.

Preferably, the two sliding grooves are fixedly provided with sliding rods, and the two sliding seats are respectively sleeved on the corresponding sliding rods in a sliding manner.

Preferably, the guide grooves are formed in the inner walls of the two sides of the sliding groove, the guide rods are fixedly mounted on the two sides of the sliding seat, and the guide rods are slidably mounted in the corresponding guide grooves.

(III) advantageous effects

The utility model provides a chair with a self-adaptive backrest. The method has the following beneficial effects:

(1) when people sit on the chair plate, the chair plate drives the two supporting columns to respectively slide downwards into the corresponding fixed grooves under the action of the self gravity of the people, the two springs are subjected to compression deformation to generate elasticity, the two supporting columns drive the corresponding first racks to downwards move, the two first gears drive the corresponding rotating shafts and the corresponding second gears to anticlockwise rotate (observed from a left view angle), when the two second gears rotate, the two second gears drive the corresponding sliding seats to horizontally slide rightwards (observed from the left view angle), the two sliding seats drive the corresponding fixed transverse plates and the corresponding vertical rods to move, the two vertical rods drive the back plate to move towards the direction close to the back of the people, when the back plate is in contact with the back of the people, the two supporting columns do not continuously downwards slide at the moment, therefore, when people sit on the seat board, the backrest board can automatically move towards the back of the people according to different heights and different sitting postures of the people, so that the backrest board can effectively support the back of the people, is suitable for the people with different heights to use, enables the people to have comfortable sensation when sitting on the seat board to have a rest, and meets the use requirements of the people.

(2) This chair of self-adaptation back, through when people stand up, under the elastic force effect of two springs, promote two support columns and slide on corresponding fixed slot respectively, two support columns drive corresponding first rack rebound, two support columns promote the seat board and rise, make two first gears drive corresponding pivot and corresponding second gear and carry out clockwise rotation (the angle of looking from the left side is observed), two second gears move corresponding slide level and slide left (the angle of looking from the left side is observed), two slides drive corresponding fixed diaphragm and montant and move, two montants drive the back board and move, thereby can carry out automatic re-setting to seat board and back board, return to the most initial position.

Drawings

FIG. 1 is a schematic sectional view of the main view of the present invention;

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

FIG. 3 is a schematic side view of the present invention;

fig. 4 is a schematic cross-sectional view of the side view of the present invention.

In the figure: 1. a support plate; 2. a support leg; 3. a column; 4. fixing grooves; 5. a support pillar; 6. a seat plate; 7. a spring; 8. a first rack; 9. positioning a plate; 10. a rotating shaft; 11. a through hole; 12. a first gear; 13. a second gear; 14. a chute; 15. a slide base; 16. a second rack; 17. fixing the transverse plate; 18. a vertical rod; 19. a back board.

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.

As shown in fig. 1-4, the utility model provides a technical solution: a chair with a self-adaptive backrest comprises a supporting plate 1, wherein two upright posts 3 are fixedly installed at the top of the supporting plate 1, fixing grooves 4 are formed in the top ends of the two upright posts 3, supporting columns 5 are slidably installed in the two fixing grooves 4, the top ends of the supporting columns 5 extend out of the fixing grooves 4, the top ends of the two supporting columns 5 are fixedly installed with a same seat plate 6, springs 7 are fixedly installed at the bottoms of the two supporting columns 5, the bottom ends of the two springs 7 are fixedly connected with the inner walls of the bottoms of the corresponding fixing grooves 4 respectively, a first rack 8 is fixedly installed at one side of each of the two supporting columns 5, the top of the first rack 8 extends out of the fixing groove 4, two positioning plates 9 are fixedly installed at the top of the supporting plate 1, mounting holes are formed in the sides, close to each other, a rotating shaft 10 is rotatably installed in the two mounting holes, the inner wall of one side, away from each other, of each of the two fixing grooves 4 is provided with a through hole 11, one end, close to each other, of each of the two rotating shafts 10 penetrates through the corresponding through hole 11, one end, close to each other, of each of the two rotating shafts 10 is fixedly provided with a first gear 12, the two first gears 12 are meshed with the corresponding first racks 8, one end, away from each other, of each of the two rotating shafts 10 is fixedly sleeved with a second gear 13, the top of the support plate 1 is provided with two sliding grooves 14, sliding seats 15 are slidably mounted in the two sliding grooves 14, the tops of the sliding seats 15 extend out of the shaft sliding grooves 14, the tops of the two sliding seats 15 are fixedly provided with second racks 16, the two second gears 13 are meshed with the corresponding second racks 16, one side, away from each other, of each of the two sliding seats 15 is fixedly provided with a fixing transverse plate 17, two vertical rods 18 are positioned at two sides of the seat board 6, and the top ends of the two vertical rods 18 are fixedly provided with the same backrest board 19.

Bottom fixed mounting of backup pad 1 has four landing legs 2, four landing legs 2 are two bisymmetry settings, the spacing groove has all been seted up on the both sides inner wall of fixed slot 4, the equal fixed mounting in both sides of support column 5 has the gag lever post, gag lever post slidable mounting is in corresponding spacing inslot, all fixed cover is equipped with the bearing on two pivot 10, the outer lane of two bearings respectively with the inner wall fixed connection of corresponding mounting hole, equal fixed mounting has the slide bar in two spouts 14, two slides 15 slide sleeve respectively establish on corresponding slide bar, the guide way has all been seted up on the both sides inner wall of spout 14, the equal fixed mounting in both sides of slide 15 has the guide bar, guide bar slidable mounting is in corresponding guide way.

When the chair is used, the four supporting legs 2 are utilized to support the supporting plate 1, the two upright posts 3, the seat plate 6 and the backrest plate 19, when a person sits on the seat plate 6, under the action of the self gravity of the person, the seat plate 6 drives the two supporting columns 5 to respectively slide downwards towards the corresponding fixed grooves 4, the supporting columns 5 drive the corresponding limiting rods to slide downwards in the corresponding limiting grooves, the two springs 7 are compressed and deformed to generate elasticity, the two supporting columns 5 drive the corresponding first racks 8 to move downwards, as the two first racks 8 are respectively meshed with the corresponding first gears 12, the two first gears 12 drive the corresponding rotating shafts 10 and the corresponding second gears 13 to rotate anticlockwise (viewed from a left side), and as the two second gears 13 are respectively meshed with the corresponding second racks 16, the two second racks 16 drive the corresponding sliding seats 15 to horizontally slide rightwards (viewed from the left side), the two sliding seats 15 slide on the corresponding sliding rods, the sliding seats 15 drive the corresponding guide rods to slide in the corresponding guide grooves, the two sliding seats 15 drive the corresponding fixed transverse plates 17 and the corresponding vertical rods 18 to move, the two vertical rods 18 drive the backrest plate 19 to move towards the direction close to the back of people, when the backrest plate 19 is in contact with the back of people, the two support columns 5 do not continue to slide downwards, so that when people sit on the seat plate 6 to have a rest, the backrest plate 19 can automatically move towards the back of people according to different heights and sitting postures of people, the backrest plate 19 can effectively support the back of people, the chair is suitable for people with different heights to use, the people have comfortable sensation when sitting on the seat plate 6 to have a rest, the use requirements of people are met, when people get up, under the elastic force action of the two springs 7, two supporting columns 5 are pushed to slide upwards in corresponding fixing grooves 4 respectively, the two supporting columns 5 drive corresponding first racks 8 to move upwards, the two supporting columns 5 push seat plates 6 to rise, two first gears 12 drive corresponding rotating shafts 10 and corresponding second gears 13 to rotate clockwise (viewed from the left side), two second racks 16 drive corresponding sliding seats 15 to slide horizontally leftwards (viewed from the left side), the two sliding seats 15 drive corresponding fixing transverse plates 17 and vertical rods 18 to move, and the two vertical rods 18 drive back plates 19 to move, so that the seat plates 6 and the back plates 19 can be automatically reset and return to the initial positions.

To sum up, when a person sits on the seat plate 6, the seat plate 6 drives the two support columns 5 to respectively slide downwards into the corresponding fixing grooves 4 under the action of the self gravity of the person, the two springs 7 are subjected to compression deformation to generate elastic force, the two support columns 5 drive the corresponding first racks 8 to move downwards, the two first gears 12 drive the corresponding rotating shafts 10 and the corresponding second gears 13 to rotate anticlockwise (viewed from the left), when the two second gears 13 rotate, the two second racks 16 drive the corresponding slide seats 15 to horizontally slide rightwards (viewed from the left), the two slide seats 15 drive the corresponding fixing transverse plates 17 and the corresponding vertical rods 18 to move, the two vertical rods 18 drive the back plate 19 to move towards the back of the person, so that when the back plate 19 is in contact with the back of the person, at the moment, the two support columns 5 do not slide downwards any more, so that when a person sits on the seat plate 6, the back plate 19 can automatically move towards the back of the person according to different heights and different sitting postures of the person, the back plate 19 can effectively support the back of the person, and the chair is suitable for people with different heights, so that the person sitting on the seat plate 6 has comfortable feeling when having a rest, and the use requirements of the person are met, when the person stands up, the two support columns 5 are pushed to slide upwards in the corresponding fixing grooves 4 respectively under the elastic force action of the two springs 7, the two support columns 5 drive the corresponding first racks 8 to move upwards, the two support columns 5 push the seat plate 6 to rise, and the two first gears 12 drive the corresponding rotating shafts 10 and the corresponding second gears 13 to rotate clockwise (viewed from a left side), two second racks 16 drive corresponding slide 15 levels and slide left (from the angle observation of looking left), two slides 15 drive corresponding fixed diaphragm 17 and montant 18 and remove, two montants 18 drive back board 19 and remove, thereby can carry out automatic re-setting to seat board 6 and back board 19, return to most initial position, the utility model relates to a rationally, the practicality is good, and when people sit on seat board 6 and have a rest, according to people's height difference, the position of sitting is different, and back board 19 can be removed to people's back direction automatically, utilizes back board 19 to effectively support people's back, is applicable to the people to different heights and uses, satisfies people's user demand, and people are standing up in addition, and seat board 6 and back board 19 can automatic re-setting, return to most initial position.

Claims

1. Chair with adaptive backrest, comprising a support plate (1), characterized in that: the top of the supporting plate (1) is fixedly provided with two columns (3), the top ends of the two columns (3) are respectively provided with a fixing groove (4), the two fixing grooves (4) are internally and slidably provided with a supporting column (5), the top ends of the supporting columns (5) extend out of the fixing grooves (4), the top ends of the two supporting columns (5) are fixedly provided with a same seat plate (6), the bottoms of the two supporting columns (5) are respectively and fixedly provided with a spring (7), the bottom ends of the two springs (7) are respectively and fixedly connected with the inner wall of the bottom of the corresponding fixing groove (4), one side of each of the two supporting columns (5) is respectively and fixedly provided with a first rack (8), the top of each first rack (8) extends out of the fixing groove (4), the top of the supporting plate (1) is fixedly provided with two positioning plates (9), one side of, the two mounting holes are internally and rotatably provided with rotating shafts (10), two ends of each rotating shaft (10) extend out of the mounting hole, the inner wall of one side, away from each other, of each fixing groove (4) is provided with a through hole (11), one ends, close to each other, of the two rotating shafts (10) respectively penetrate through the corresponding through holes (11), one ends, close to each other, of the two rotating shafts (10) are respectively and fixedly provided with first gears (12), the two first gears (12) are respectively meshed with corresponding first racks (8), one ends, away from each other, of the two rotating shafts (10) are respectively and fixedly sleeved with second gears (13), the top of the support plate (1) is provided with two sliding grooves (14), sliding seats (15) are respectively and slidably arranged in the two sliding grooves (14), the tops of the sliding seats (15) extend out of the shaft sliding grooves (14), the tops of the two sliding seats (15) are respectively and fixedly provided with second racks (16), and the two second gears (13, the two seat bases (15) are fixedly mounted on one side far away from each other to form a fixed transverse plate (17) above the supporting plate (1), vertical rods (18) are fixedly mounted on the tops of the two fixed transverse plates (17), the two vertical rods (18) are located on two sides of the seat plate (6), and the top ends of the two vertical rods (18) are fixedly mounted with the same backrest plate (19).

2. A chair with an adaptive backrest according to claim 1, wherein: the bottom of the supporting plate (1) is fixedly provided with four supporting legs (2), and the four supporting legs (2) are arranged in a pairwise symmetrical mode.

3. A chair with an adaptive backrest according to claim 1, wherein: the limiting grooves are formed in the inner walls of the two sides of the fixing groove (4), limiting rods are fixedly mounted on the two sides of the supporting column (5), and the limiting rods are slidably mounted in the corresponding limiting grooves.

4. A chair with an adaptive backrest according to claim 1, wherein: the two rotating shafts (10) are fixedly sleeved with bearings, and outer rings of the two bearings are fixedly connected with the inner walls of the corresponding mounting holes respectively.

5. A chair with an adaptive backrest according to claim 1, wherein: slide bars are fixedly arranged in the two sliding grooves (14), and the two sliding seats (15) are respectively sleeved on the corresponding slide bars in a sliding manner.

6. A chair with an adaptive backrest according to claim 1, wherein: guide grooves are formed in the inner walls of the two sides of the sliding groove (14), guide rods are fixedly mounted on the two sides of the sliding seat (15), and the guide rods are slidably mounted in the corresponding guide grooves.