CN218571802U

CN218571802U - Novel light and foldable chair

Info

Publication number: CN218571802U
Application number: CN202122505490.9U
Authority: CN
Inventors: 鲍雨梅; 施康强; 许乐
Original assignee: Zhijiang College of ZJUT
Current assignee: Zhijiang College of ZJUT
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2023-03-07
Anticipated expiration: 2031-10-15

Abstract

The utility model provides a novel light alright folding chair belongs to folding chair technical field. The prior art is folding effect poor. When riding board and back are closed around the first pivot rotation in opposite directions, folding support is folding, when riding board and back are unfolded around the first pivot rotation in opposite directions, folding support expandes, folding support is including setting up in the folding supporting mechanism of riding board both sides, the bottom of front wheel branch and rear wheel branch all is provided with the gyro wheel, front wheel branch top, the top of rear wheel branch and the first end of connecting rod are passed through the second pivot and are rotated the connection, the second end of connecting rod is rotated the connection in one side of back, the upper portion of front wheel branch is passed through the third pivot and is rotated the connection in riding board one side, the middle part inboard of rear wheel branch is passed through the connecting plate and is connected first pivot, the connecting plate both ends respectively with rear wheel branch and first pivot rotation connection, still be provided with locking device on the riding board, when folding expansion, stop device is used for locking the angle between riding board and the back. The folding volume is small.

Description

Novel light and foldable chair

Technical Field

The utility model belongs to the technical field of folding chair, in particular to novel light alright folding chair.

Background

At present, the mainstream folding wheelchairs in the market mainly have two types: a center closed type and a horizontal folding type of a link mechanism, wherein the center closed type is that the width of the wheelchair is reduced, so that the total height and length of the wheelchair are not significantly changed, and wheel-folding chair cushions, back cushions, foot boards and other necessary components are removed when folded, which is troublesome in operation, requires time and manpower; in the horizontal folding of the link mechanism, the height of the wheelchair varies greatly before and after the folding, but the length variation caused by the folding is small, and in addition, the pedals need to be retracted when the wheelchair is folded, thereby increasing the operation steps.

Disclosure of Invention

The utility model aims at the problems existing in the prior art and provides a novel light folding chair.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a novel light alright folding chair, its characterized in that, including taking seat, back and folding support, the back bottom through first pivot with take the board to rotate to connect, work as take the seat with the back winds when first pivot turns to and draws close, folding support is folding, work as take the seat with the back winds when first pivot turns to and expandes, folding support including set up in take the folding supporting mechanism of seat both sides, folding supporting mechanism includes front wheel branch, rear wheel branch and connecting rod, two connect through first connecting rod between the front wheel branch, two connect through the second connecting rod between the rear wheel branch, the bottom of front wheel branch and rear wheel branch all is provided with the gyro wheel, front wheel branch top the top of rear wheel branch and the first end of connecting rod rotates through the second pivot to be connected, the second end rotation of connecting rod is connected in one side of back, the upper portion of front wheel branch through the third pivot with take the seat one side to rotate to connect, the middle part of rear wheel branch is through the inboard connect the pivot with the connection board when the pivot is connected with the locking angle device, the seat still is connected to the device when the pivot, the back is connected with the pivot.

The utility model discloses a theory of operation: when people need to take the vehicle, the people pull the riding board and the backrest to enable the riding board and the backrest to rotate back to the back, after the riding board and the backrest rotate to a set angle, the angle between the riding board and the backrest is locked through the locking device, in the state, the angle between the front wheel supporting rod and the connecting rod is locked and cannot rotate, and the same rear wheel supporting rod cannot rotate after rotating around the second rotating shaft for a certain angle under the action of the connecting rod, so that the unfolding of the utility model is completed for people to take; when needing to fold and accomodating, the people unblock locking device, then pull riding board and back and make riding board and back rotate in opposite directions until drawing close, when riding board and back rotate in opposite directions, connecting rod and front wheel branch can receive the back and take the extrusion of board, the position that drives the second pivot is moving towards the contained angle opening direction of riding board and back and drawing close, the direction that drives rear wheel branch and remove along the second pivot simultaneously, clockwise rotation under the drive of rear wheel branch is connected plate, until riding board and back can't draw close again, just so folding accomodating has been accomplished, under this kind of state the utility model discloses no matter length still highly all compressed, conveniently carry, it is practical convenient.

In the novel light foldable chair, the first connecting rod is connected with the connecting frame, and one end of the connecting frame, which is far away from the first connecting rod, is rotatably connected with the pedal.

In foretell novel light alright folding chair, locking device is including setting up respectively two spacing lugs of riding board both sides, spacing lug is located the top of first pivot, the bottom of spacing lug sets up to the inclined plane, works as when folding support expandes, spacing lug can inject the turned angle of connecting plate.

In the above-mentioned novel light alright folding chair, the back both sides all are provided with the handrail, the handrail is used for supplying the people to place the arm.

In the novel light foldable chair, one end of the armrest is rotatably connected with the backrest.

In the novel light foldable chair, the roller at the bottom of the front wheel strut is arranged in a steering way.

In foretell novel light alright folding chair, the gyro wheel of front wheel branch bottom is established through the adapter sleeve the bottom of front wheel branch, the adapter sleeve with front wheel branch is rotatable coupling.

Compared with the prior art, the utility model has the advantages of folding back is small.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the unfolding and folding bracket of the present invention in an unfolded state.

Fig. 3 is a schematic structural view of the folding bracket of the present invention in a folded state.

Fig. 4 is an enlarged schematic view of the part a of the present invention.

In the figure, 1, a riding board; 2. a backrest; 3. folding the bracket; 4. a first rotating shaft; 5. a folding support mechanism; 6. a front wheel strut; 7. a rear wheel strut; 8. a connecting rod; 9. a first link; 10. a second link; 11. A roller; 12. a second rotating shaft; 13. a third rotating shaft; 14. a connecting plate; 15. a locking device; 16. a connecting frame; 17. a foot pedal; 18. a handrail; 19. connecting sleeves; 20. and a limiting bump.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-4, the novel light foldable chair comprises a sitting plate 1, a backrest 2 and a foldable support 3, wherein the bottom end of the backrest 2 is rotatably connected with the sitting plate 1 through a first rotating shaft 4, when the sitting plate 1 and the backrest 2 rotate in opposite directions around the first rotating shaft 4 and approach, the foldable support 3 is folded, when the sitting plate 1 and the backrest 2 rotate in opposite directions around the first rotating shaft 4 and unfold, the foldable support 3 comprises foldable support mechanisms 5 arranged at two sides of the sitting plate 1, the foldable support mechanisms 5 comprise front wheel support rods 6, rear wheel support rods 7 and connecting rods 8, two front wheel support rods 6 are connected through a first connecting rod 9, two rear wheel support rods 7 are connected through a second connecting rod 10, the bottom of front wheel branch 6 and rear wheel branch 7 all is provided with gyro wheel 11, front wheel branch 6 top, the top of rear wheel branch 7 and the first end of connecting rod 8 are passed through second pivot 12 and are rotated the connection, the second end of connecting rod 8 is rotated and is connected in one side of back 2, the upper portion of front wheel branch 6 is passed through third pivot 13 and is rotated and be connected with riding board 1 one side, the middle part inboard of rear wheel branch 7 is passed through connecting plate 14 and is connected

first pivot

4, 14 both ends of connecting plate rotate with rear wheel branch 7 and first pivot 4 respectively and be connected, riding board 1 both sides still are provided with locking device 15, locking device 15 is used for locking the angle between back 2 and the riding board 1.

Further in detail, first connecting rod 9 is connected with link 16, and link 16 keeps away from the one end rotation of first connecting rod 9 and is connected with running-board 17, because running-board 17 rotates with link 16 and is connected, when needs are accomodate foldingly, consequently running-board 17 also can rotate foldingly, further reduces the volume, when needing to use running-board 17, then can expand the use again, and is very convenient.

In further detail, the locking device 15 comprises two limiting protrusions 20 respectively arranged on two sides of the riding board 1, the limiting protrusions 20 are located above the first rotating shaft 4, the bottoms of the limiting protrusions 20 are arranged as inclined planes, and when the folding bracket 3 is unfolded, the limiting protrusions 20 can limit the rotating angle of the connecting plate 14; when the folding bracket 3 is unfolded, a connecting plate 14, the upper part of the rear wheel strut 7, a quadrilateral structure is formed between the connecting rod 8 and the backrest 2, the front wheel strut 6 and the rear wheel strut 7 can be unfolded by the gravity of a person sitting on the riding plate 1 to drive the connecting plate 14 to rotate towards the direction in which the rear wheel strut 7 is unfolded, at the moment, the limiting bump 20 limits the connecting plate 14, so that the connecting plate 14 cannot continue to rotate, the quadrilateral structure formed between the connecting plate 14, the upper part of the rear wheel strut 7, the connecting rod 8 and the backrest 2 is fixed and cannot deform, the top of the front wheel strut 6 is rotatably connected with the connecting rod 8, the upper part of the front wheel strut 6 is rotatably connected with one side of the riding plate 1, the connecting rod 8 and the riding plate 1 cannot rotate any more under the condition that the connecting rod 8 and the riding plate 1 are fixed, the person can sit when the folding bracket is unfolded, the connecting plate 14, the rear wheel strut 7, the riding plate 1 and the connecting rod 8 are made of steel, the strength is high, and the gravity of the person can be borne.

In further detail, the armrests 18 are arranged on the two sides of the backrest 2, and the armrests 18 are used for the people to place arms, provide placing positions for the arms of the people, and provide the arms of the people for relaxation and rest, so that the chair is very convenient.

In more detail, one end of the armrest 18 is rotatably connected with the backrest 2, and when the armrest 18 is folded and stored, the armrest 18 can be rotated to fold the armrest, so that the folding chair is convenient and practical.

In further detail, the roller 11 at the bottom of the front wheel strut 6 is arranged to be capable of steering, so that a person can steer to a destination when taking the seat, and the seat is convenient and practical.

In more detail, the roller 11 at the bottom of the front wheel strut 6 is sleeved at the bottom of the front wheel strut 6 through the connecting sleeve 19, the connecting sleeve 19 is rotatably connected with the front wheel strut 6, and the connecting sleeve 19 rotates to drive the roller 11 to deflect, so that the purpose of steering is achieved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although a large number of terms are used herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a novel light alright folding chair, its characterized in that, including riding board (1), back (2) and folding support (3), back (2) bottom through first pivot (4) with take advantage of seat board (1) and rotate to be connected, work as take advantage of seat board (1) with back (2) wind first pivot (4) rotate in opposite directions when drawing close, folding support (3) are folding, work as take advantage of seat board (1) with back (2) wind first pivot (4) antiport is when launching, folding support (3) launch, folding support (3) including set up in take advantage of folding supporting mechanism (5) of seat board (1) both sides, folding supporting mechanism (5) include front wheel branch (6), rear wheel branch (7) and connecting rod (8), two connect through first connecting rod (9) between front wheel branch (6), connect through second connecting rod (10) between rear wheel branch (7), front wheel branch (6) and connecting rod (8) are connected at the top of connecting rod (7), the top of rear wheel branch (7) and second pivot (8) are connected through the top of connecting rod (11), the connecting rod (7) and the top of rear wheel (8) are connected through the second pivot (12), the upper portion of front wheel branch (6) through third pivot (13) with take advantage of seat board (1) one side and rotate and connect, the middle part inboard of rear wheel branch (7) is connected through connecting plate (14) first pivot (4), connecting plate (14) both ends respectively with rear wheel branch (7) and first pivot (4) rotate and connect, still be provided with locking device (15) on taking advantage of seat board (1), when folding a expansion, locking device is used for the locking take advantage of the angle between seat board (1) and back (2).

2. A novel light foldable chair as claimed in claim 1, characterized in that the first link (9) is connected with a connecting frame (16), and the end of the connecting frame (16) far from the first link (9) is rotatably connected with a pedal (17).

3. A new type of light foldable chair as claimed in claim 1, characterized in that said locking device (15) comprises two limit protrusions (20) respectively arranged on both sides of said seat board (1), said limit protrusions (20) being located above said first rotation axis (4), the bottom of said limit protrusions (20) being arranged as an inclined plane, said limit protrusions (20) being able to limit the rotation angle of said connecting plate (14) when said folding bracket (3) is unfolded.

4. A new type of light and foldable chair as claimed in claim 1, characterized in that the back rest (2) is provided with armrests (18) on both sides, said armrests (18) being intended for the person to place his arms.

5. A new type of light collapsible chair as claimed in claim 4 characterised in that the arms (18) are pivotally connected at one end to the backrest (2).

6. A new type of light collapsible chair as claimed in claim 1 characterised in that the rollers (11) at the bottom of the front wheel strut (6) are steerable.

7. A novel light and foldable chair as claimed in claim 6, characterized in that the roller (11) at the bottom of the front wheel strut (6) is sleeved on the bottom of the front wheel strut (6) through a connecting sleeve (19), and the connecting sleeve (19) is rotatably connected with the front wheel strut (6).