CN216675250U - Chair with detachable top - Google Patents

Abstract

The utility model discloses a chair, which relates to the technical field of furniture and comprises a supporting frame and a backrest, wherein one side of the bottom end of the supporting frame is hinged with a first supporting frame, one side of the bottom end of the supporting frame, which is far away from the first supporting frame, is hinged with a second supporting frame, a containing assembly used for containing the first supporting frame and the second supporting frame in a folding mode is arranged on the supporting frame, a handle is arranged on the rear side of the supporting frame or the containing assembly, and a connecting assembly used for connecting the backrest and the supporting frame is arranged at the bottom end of the backrest.

Description

Chair with detachable top

Technical Field

The application relates to the technical field of furniture, in particular to a chair.

Background

The chair is a daily-life furniture, a seat with a backrest and armrests. Modern chairs pursue beauty and fashion, and some chairs are not used as seats alone, so that the life of people is more convenient under the combination of science and technology. However, the chair in the prior art is inconvenient to carry when being used, and the backrest of the chair which is convenient to carry cannot be installed. In addition, the arm supporting armrests of the existing chair are often low in height and cannot be adjusted in height, and people often need to be matched with a table due to the fact that the neck of a user stretches forwards and cervical spondylosis is easily caused when the user hangs the arm supporting armrests of the existing chair to read. The chair of prior art can not put up the arm in order to adjust angle and height between user's hand and the eyes, if can put up the arm to certain height by the handle, then can let the neck from then the side, can effectively prevent cervical spondylitis, alleviates the pressure of cervical vertebra. So that a chair with a new structure is required to meet the requirements of people.

Disclosure of Invention

The present invention is directed to a chair, which solves the problems of the chair proposed in the background art that it is inconvenient to carry the chair out and adjust the angle and height between the user's hand and the user's eyes.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a chair, includes carriage and back, bottom one side of carriage articulates there is first support frame, one side that first support frame was kept away from to the bottom of carriage articulates there is the second support frame, be provided with on the carriage and be used for folding the subassembly of accomodating first support frame and second support frame, the rear side or the subassembly of accomodating of carriage are provided with the handle, the bottom of back is provided with the coupling assembling that is used for connecting back and carriage.

Furthermore, one side of the bottom end of the supporting frame far away from the first supporting frame is fixedly provided with a fixing plate, and the front side of the bottom end of the fixing plate is hinged with a second supporting frame.

Further, the storage assembly comprises an elastic mesh cloth, a first zipper and a second zipper, one end of the elastic mesh cloth is fixedly installed on one side, close to the backrest, of the top end of the supporting frame, the other end of the elastic mesh cloth sequentially penetrates through the inner cavities of the first supporting frame and the second supporting frame and extends to the rear side of the second supporting frame, the first zipper is arranged at the other end of the elastic mesh cloth, the second zipper is arranged at the bottom end of the supporting frame and located at the rear side of the fixing plate, and the first zipper and the second zipper are connected through zipper head detachable and meshed with each other.

Further, coupling assembling is including two fixed orificess, two splice bolts, two nuts, two the top rear side at the carriage is all seted up to the fixed orifices two the equal fixed mounting in the rear side of back of one end of splice bolt, two the other end of splice bolt runs through the inner chamber of two fixed orificess respectively and all extends to the bottom of carriage, two the nut is spiro union respectively at the outer wall of two splice bolts.

Further, the left and right sides and the top of back fixed mounting respectively have a pair of extension rod, are located two pairs of the back left and right sides the outer wall of extension rod slidable respectively has cup jointed the second extension plate, is located a pair of back top the outer wall slidable of extension rod has cup jointed first extension plate, and is every right the equal fixed mounting in one end of keeping away from the back of extension rod has a pair of limiting plate, and the three is right the limiting plate slidable inlays the inner chamber at first extension plate and two second extension plates respectively, two equal spiro union has a pair of fixing bolt on second extension plate and the first extension plate, and is every right fixing bolt's rear end all with every front end in close contact with to the extension rod.

Furthermore, the front ends of the two second extension plates are provided with support assemblies for supporting arms, each support assembly comprises a heightening block, an arm supporting frame and a hand blocking plate, the heightening block is fixedly arranged in the inner cavity of the second extension plate, the arm supporting frame is also fixed in the inner cavity of the second extension plate and is positioned at the upper end of the heightening block, and the hand blocking plate is rotatably connected in a groove in the arm supporting frame through a pin shaft with a damping effect.

Furthermore, each keep off the equal detachable of arm board wall and be connected with the clamping components who is used for fixed cell-phone, each clamping components all includes three screw hole, screw rod, backup pad, two baffles, two guide arms, splint and two springs, and is three the screw hole is seted up respectively on the top and the left and right sides of keeping off the arm board, the one end spiro union of screw rod is at the inner chamber of one of them screw hole, backup pad fixed mounting is at the other end of screw rod, two the baffle is fixed mounting respectively at the both ends of backup pad, two the guide arm all sets up between two baffles, the gliding cup joint of splint is at the outer wall of two guide arms, two the spring cup joints the outer wall at two guide arms respectively.

Further, the side of second extension plate is provided with the side opening that runs through second extension plate one side, bed hedgehopping piece and trailing arm frame are through the screw fixation who runs through the side opening, the bed hedgehopping piece has two kinds of specifications, first kind bed hedgehopping piece is the horizontally specification of upper end, second kind bed hedgehopping piece is the specification of upper end slope, the slope of upper end bed hedgehopping piece can be with the trailing arm frame slope bed hedgehopping.

Adopt above-mentioned at least one technical scheme can reach following beneficial effect:

one of them, through rotatory fixing bolt, make fixing bolt break away from with the contact of extension rod, the area that first extension plate of pulling and second extension plate alright make the back enlarges, at a rotatory fixed bolt, make a fixed bolt go deep into the inner chamber of first extension plate and second extension plate, the rear end that makes fixing bolt supports the limiting plate, thereby realized the fixed to second extension plate and first extension plate position, prevent that gliding condition from appearing with the second extension plate when using, improved the stability of the device when using.

Secondly, when a user leans against the backrest to read, the arm support frame can be installed according to the requirements of different heights, the height is adjusted through the heightening block, the arm is further raised, the book is lifted higher, and the fatigue of the cervical vertebra is relieved; the hand blocking plate is rotated to enable the hand blocking plate to stand at a certain angle, and the hand blocking plate can block the arms from approaching the eyes during use, so that the distance between the hands of a user and the eyes can be limited, and the books held by the hands are prevented from being too close to the eyes.

Thirdly, when the mobile phone is needed to be seen, the screw rod can be screwed in the inner cavity of one of the threaded holes, and the mobile phone is fixed at the rear end of the supporting plate under the clamping effect between the clamping plate and the baffle plate, so that the mobile phone can be conveniently fixed, and the condition of hand fatigue caused by holding the mobile phone for a long time is avoided.

And fourthly, when the handle is carried outside, the nut screwed on the splicing bolt is taken down, the splicing bolt is separated from the inner cavity of the fixed hole, the backrest is detached, the first zipper and the second zipper are opened, the first support frame and the second support frame are folded, the first support frame and the second support frame after being folded are wrapped by the elastic mesh cloth, at the moment, the first zipper and the second zipper are meshed through the chain head, the support frame, the second support frame and the first support frame are folded and fixed, and the handle is lifted, so that the handle can be carried outside except the backrest independently.

Drawings

FIG. 1 is a schematic exploded view of a chair;

FIG. 2 is a perspective view of the backrest;

FIG. 3 is a schematic view of the back rest in an expanded configuration;

FIG. 4 is a schematic view of an exploded structure of an extension plate;

FIG. 5 is a schematic view of the extension board with the arm support assembly attached;

FIG. 6 is a schematic view of the arm support assembly with the clamp assembly installed;

FIG. 7 is a schematic view of the relevant structure at a threaded hole;

FIG. 8 is a schematic view of the extension board with the arm support assembly and the block mounted thereon;

FIG. 9 is a schematic perspective view of the block;

FIG. 10 is a side view of the block with the upper end of the block in horizontal format;

fig. 11 is a side view of the block with its upper end inclined.

In the figure: 1. a support frame; 2. a first support frame; 3. a fixing plate; 4. a second support frame; 5. elastic mesh cloth; 6. a first zipper; 7. a second zipper; 8. a fixing hole; 9. splicing bolts; 10. a nut; 11. a backrest; 12. a first extension plate; 13. an extension pole; 14. a limiting plate; 15. fixing the bolt; 16. a second extension plate; 17. a block for raising; 18. a cantilever support; 19. a hand guard; 20. a threaded hole; 21. a screw; 22. a support plate; 23. a baffle plate; 24. a guide bar; 25. a splint; 26. spring, 27. side hole.

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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

As shown in fig. 1 to 11, a chair is characterized in that: the foldable backrest comprises a supporting frame 1 and a backrest 11, wherein a first supporting frame 2 is hinged to one side of the bottom end of the supporting frame 1, a fixing plate 3 is fixedly installed on one side, far away from the first supporting frame 2, of the bottom end of the supporting frame 1, a second supporting frame 4 is hinged to the front side of the bottom end of the fixing plate 3, the height of the second supporting frame 4 is lower than that of the first supporting frame 2 due to the existence of the fixing plate 3, the upper and lower width of the fixing plate 3 is the same as the front and back width of the first supporting frame 2, when the first supporting frame 2 is folded, the bottom end of a block 17 and the bottom end of the first supporting frame 2 after being folded are positioned on the same plane, so that the second supporting frame 4 can be conveniently folded, then the first supporting frame 2 and the second supporting frame 4 can be conveniently folded in a staggered manner, a containing assembly for containing the first supporting frame 2 and the second supporting frame 4 in a folding manner is arranged on the supporting frame 1, and a handle is arranged on the rear side or the containing assembly of the supporting frame 1, can make things convenient for carriage 1 after folding through the pulling handle, going out of first support frame 2 and second support frame 4 is carried, conveniently take, the bottom of back 11 is provided with the coupling assembling that is used for connecting back 11 and carriage 1, setting through coupling assembling, can make things convenient for the installation and the dismantlement of back 11, go out when carrying, can take off back 11, only carry carriage 1 after folding, first support frame 2 and second support frame 4, small and exquisite flexibility, conveniently carry.

The storage assembly comprises an elastic mesh fabric 5, a first zipper 6 and a second zipper 7, one end of the elastic mesh fabric 5 is fixedly installed on one side, close to the backrest 11, of the top end of the support frame 1, the other end of the elastic mesh fabric 5 sequentially penetrates through the inner cavities of the first support frame 2 and the second support frame 4 to extend to the rear side of the second support frame 4, the first zipper 6 is arranged at the other end of the elastic mesh fabric 5, the second zipper 7 is arranged at the bottom end of the support frame 1 and located at the rear side of the fixing plate 3, and the first zipper 6 and the second zipper 7 are detachably connected through zipper heads and are meshed with each other. The first zipper 6 and the second zipper 7 are opened, the first support frame 2 and the second support frame 4 are folded, the first support frame 2 and the second support frame 4 after being folded are wrapped by the elastic mesh cloth 5, at the moment, the first zipper 6 is meshed with the second zipper 7 through the chain heads, the support frame 1, the second support frame 4 and the first support frame 2 are folded and fixed, the handle is lifted, and the folding type elastic mesh cloth can be carried and is convenient to use outside.

Coupling assembling is including two fixed orificess 8, two splice bolts 9, two nuts 10, and two fixed orificess 8 are all seted up at carriage 1's top rear side, and the equal fixed mounting in the rear side of back 11 of the one end of two splice bolts 9, and two splice bolts 9's the other end runs through the inner chamber of two fixed orificess 8 respectively and all extends to carriage 1's bottom, and two nuts 10 spiro union are at two splice bolt 9's outer wall respectively. When the backrest is carried outside, the nut 10 screwed on the splicing bolt 9 is taken down, the splicing bolt 9 is separated from the inner cavity of the fixing hole 8, the backrest 11 is detached, and the carrying is convenient.

The left and right sides and the top of back 11 are fixed mounting respectively has a pair of extension rod 13, the outer wall of two pairs of extension rod 13 that are located the back 11 left and right sides is slidable respectively and has been cup jointed second extension plate 16, the outer wall slidable of a pair of extension rod 13 that is located the back 11 top has been cup jointed first extension plate 12, the equal fixed mounting of one end of keeping away from back 11 of each pair of extension rod 13 has a pair of limiting plate 14, three pairs of limiting plate 14 is the slidable inlaying respectively in the inner chamber of first extension plate 12 and two second extension plates 16, all the spiro union has a pair of fixing bolt 15 on two second extension plates 16 and the first extension plate 12, the rear end of each pair of fixing bolt 15 all with the front end in close contact with of each pair of extension rod 13. Through fixing bolt 15's setting, when extension rod 13 is in the shrink state, can make fixing bolt 15 be located the one end of first extension plate 12 and the 16 inner chambers of second extension plate and the outer wall in close contact with of extension rod 13, prevent that extension rod 13 from appearing the condition of stretching out, when extension rod 13 is in the expansion state, can make fixing bolt 15's rear end support limiting plate 14, thereby realized the fixed to second extension plate 16 and first extension plate 12 position, prevent that gliding condition from appearing in first extension plate 12 and second extension plate 16 when using, the stability of the device when using has been improved.

The front ends of the two second extension plates 16 are provided with supporting components for supporting arms, each supporting component comprises a heightening block 17, a supporting arm frame 18 and a hand blocking plate 19, the heightening block 17 is fixedly arranged in the inner cavity of the second extension plate 16, the supporting arm frame 18 is also fixed in the inner cavity of the second extension plate 16 and is located at the upper end of the heightening block 17, and the hand blocking plate 19 is rotatably connected in a groove in the supporting arm frame 18 through a pin shaft with a damping effect. The side of second extension board 16 is provided with the side hole 27 that runs through second extension board 16 one side, and bed hedgehopping piece 17 and support arm frame 18 are through the screw fixation who runs through side hole 27, and bed hedgehopping piece 17 has two kinds of specifications, and first kind of bed hedgehopping piece 17 is the horizontally specification in upper end, and second kind of bed hedgehopping piece 17 is the specification of upper end slope, and the bed hedgehopping piece 17 of upper end slope can be with support arm frame 18 slope bed hedgehopping. When a user leans on the backrest 11 to read, the arm support 18 can be installed according to the requirements of different heights, the height is adjusted through the heightening block 17, and then the arm is raised; then the hand baffle plate 19 is rotated to enable the hand baffle plate 19 to stand for a certain angle, when in use, the hand baffle plate 19 can block the arms from approaching the eyes, further the distance between the hands of a user and the eyes can be limited, and the books held by the hands are prevented from being too close to the eyes.

Each hand baffle 19 wall all detachable be connected with the clamping component who is used for fixed cell-phone, each clamping component all includes three screw hole 20, screw rod 21, backup pad 22, two baffles 23, two guide arms 24, splint 25 and two springs 26, three screw hole 20 is seted up respectively on the top and the left and right sides of hand baffle 19, the inner chamber at one of them screw hole 20 of screw rod 21's one end spiro union, backup pad 22 fixed mounting is at the other end of screw rod 21, two baffles 23 fixed mounting are respectively at the both ends of backup pad 22, two guide arms 24 all set up between two baffles 23, the gliding cup joint in the outer wall of two guide arms 24 of splint 25, two springs 26 cup joint respectively in the outer wall of two guide arms 24. Splint 25 can be simultaneously along two guide arms 24 when gliding, under the effect of two guide arms 24, can make splint 25 along the straight line all the time, the stability of clamping unit has been improved, two springs 26 cup joint the outer wall at two guide arms 24 respectively, can make splint 25 slide when using, make splint 25 apart from the distance grow between the baffle 23 that is located the top of backup pad 22, place the cell-phone between baffle 23 and splint 25, under the spring action of spring 26, alright fix the cell-phone.

The trailing arm frame 18 and second extension plate 16 of the present invention may also be referred to in the patents: "patent number: CN202121090880.8 patent name: the structure of the combined adjustable backrest is provided with a structure capable of being adjusted in a rotating mode, and the structure is not described in detail herein.

When the chair is used, the sitting part can be used independently, and the chair can also be used by combining a backrest. A plurality of parts can be combined and adjusted for use. 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 (8)

1. A chair, characterized in that: including carriage (1) and back (11), the bottom one side of carriage (1) articulates there is first support frame (2), one side that first support frame (2) were kept away from to the bottom of carriage (1) articulates there is second support frame (4), be provided with on carriage (1) and be used for folding the subassembly of accomodating first support frame (2) and second support frame (4), the rear side or the subassembly of accomodating of carriage (1) are provided with the handle, the bottom of back (11) is provided with the coupling assembling that is used for connecting back (11) and carriage (1).

2. A chair according to claim 1, wherein: one side fixed mounting that first support frame (2) were kept away from to the bottom of carriage (1) has fixed plate (3), the bottom front side of fixed plate (3) articulates there is second support frame (4).

3. A chair according to claim 2, wherein: the storage assembly comprises an elastic mesh (5), a first zipper (6) and a second zipper (7), one end of the elastic mesh (5) is fixedly installed on one side, close to the backrest (11), of the top end of the support frame (1), the other end of the elastic mesh (5) sequentially penetrates through the inner cavities of the first support frame (2) and the second support frame (4) and extends to the rear side of the second support frame (4), the first zipper (6) is arranged at the other end of the elastic mesh (5), the second zipper (7) is arranged at the bottom end of the support frame (1) and located on the rear side of the fixing plate (3), and the first zipper (6) and the second zipper (7) are detachably connected through zipper heads and are mutually meshed.

4. A chair according to claim 1, wherein: coupling assembling is including two fixed orificess (8), two splice bolt (9), two nut (10), two the top rear side at carriage (1) is all seted up in fixed orifices (8), two the equal fixed mounting in the rear side of back (11) of one end of splice bolt (9), two the other end of splice bolt (9) runs through the inner chamber of two fixed orificess (8) respectively and all extends to the bottom of carriage (1), two nut (10) difference spiro union is at the outer wall of two splice bolt (9).

5. A chair according to claim 1, wherein: the left and right sides of back (11) and top are fixed mounting respectively have a pair of extension rod (13), are located two pairs of back (11) left and right sides the outer wall of extension rod (13) slidable respectively has cup jointed second extension plate (16), is located a pair of on back (11) top the outer wall slidable of extension rod (13) has cup jointed first extension plate (12), and is every to the equal fixed mounting in one end of keeping away from back (11) of extension rod (13) has a pair of limiting plate (14), and is three right limiting plate (14) slidable respectively the embedded inner chamber in first extension plate (12) and two second extension plates (16), two equal spiro union has a pair of fixing bolt (15) on second extension plate (16) and first extension plate (12), and is every right the rear end of fixing bolt (15) all with every front end in close contact with extension rod (13).

6. A chair according to claim 5, wherein: the front ends of the two second extension plates (16) are provided with supporting components for supporting arms, each supporting component comprises a heightening block (17), an arm supporting frame (18) and a hand blocking plate (19), the heightening block (17) is fixedly installed in an inner cavity of the second extension plate (16), the arm supporting frame (18) is also fixed in the inner cavity of the second extension plate (16) and located at the upper end of the heightening block (17), and the hand blocking plate (19) is rotatably connected in a groove in the arm supporting frame (18) through a pin shaft with a damping effect.

7. A chair according to claim 6, wherein: each hand baffle plate (19) is detachably connected with clamping components for fixing a mobile phone on the wall surface, each clamping component comprises three threaded holes (20), a screw rod (21), a supporting plate (22), two baffle plates (23), two guide rods (24), a clamping plate (25) and two springs (26), the three threaded holes (20) are respectively arranged at the top end and the left side and the right side of the hand baffle plate (19), one end of the screw rod (21) is screwed in the inner cavity of one threaded hole (20), the supporting plate (22) is fixedly arranged at the other end of the screw rod (21), the two baffle plates (23) are respectively and fixedly arranged at the two ends of the supporting plate (22), the two guide rods (24) are respectively arranged between the two baffle plates (23), the clamping plate (25) is sleeved on the outer walls of the two guide rods (24) in a sliding mode, and the two springs (26) are respectively sleeved on the outer walls of the two guide rods (24).

8. A chair according to claim 6, wherein: the side of second extension board (16) is provided with side opening (27) that run through second extension board (16) one side, bed hedgehopping piece (17) and trailing arm frame (18) are through the screw fixation who runs through side opening (27), bed hedgehopping piece (17) have two kinds of specifications, first kind bed hedgehopping piece (17) are the horizontally specification of upper end, second kind bed hedgehopping piece (17) are the specification of upper end slope, the upper end slope bed hedgehopping piece (17) can be with trailing arm frame (18) slope bed hedgehopping.

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