CN218219627U - Folding bleacher chair - Google Patents

Abstract

The application discloses folding stand chair, including the back of the chair and cushion subassembly, the cushion subassembly including being close to the first cushion that the back of the chair set up and keeping away from the second cushion that the back of the chair set up, first cushion articulated with the second cushion, the pin joint is located the bottom of cushion subassembly, the second cushion can overturn downwards for first cushion to overlapping with first cushion. The first cushion is provided with a support, and the first cushion is connected with the chair back through the support. The chair back comprises a piece of back cloth, a lower support with a U-shaped structure and two upper support rods hinged on the lower support. The seat cushion which is folded back and forth is arranged, so that even though a user feels comfortable in use, the occupied space after storage is small.

Description

Folding bleacher chair

Technical Field

The application relates to the technical field of stand seats, in particular to a folding stand seat.

Background

With the rapid development of social productivity, the material enjoyment and the mental pursuit of people are greatly improved, and the holding of some large-scale sports competitions, large-scale sunconcerts, evenings and the like is more and more, so that derivatives such as the movable stand and the stand seat are promoted, and the movable stand seat is designed to be stable and firm, attractive, durable and convenient to install as a movable stand seat for various gymnasiums, competition fields and the like. The traditional stand seat is of a long strip-shaped long stool structure and is made of hard materials, so that the stand seat is poor in comfort for long time sitting. The back does not lean against, and the buttocks feel uncomfortable after sitting for a long time.

Chinese patent application "a collapsible cloth formula of wearing stand chair", application (patent) No.: CN202020417308.7 discloses handrail assembly, back assembly, cushion assembly and couple assembly including two symmetry settings, back assembly includes a detachable cloth that backs, the cushion assembly includes a detachable cushion cloth cover, the well lower part of backing assembly both sides rotates with a handrail assembly upside respectively and is connected, the bottom of backing assembly both sides with the cushion assembly both sides rotate and are connected, and two handrail assembly downside rotate with cushion assembly both sides respectively and are connected, couple assembly demountable installation in cushion assembly lower surface. By adopting the foldable design of the seat of the stand, the occupied space is reduced, and the seat is simple in integral structure, attractive, elegant, firm, durable and convenient and fast to open and fold.

However, the above patent application only designs that the backrest and the cushion can be folded, and the folded grandstand chair is still larger in size. There is also a Chinese patent application, a stand chair, which applies for (patent): CN201320596736.0, comprising a chair frame, a cushion and a backrest cloth movably arranged on the chair frame, wherein the chair frame comprises a bottom bracket with two U-shaped frame back supports with outward opening ends pivoted to form an I shape, the outer sides of the two vertical rod ends of the U-shaped frame are pivoted with the lower ends of the U-shaped handrail frames with downward opening ends, and the two U-shaped handrail frames are respectively pivoted on the two sides of the U-shaped frame; a backrest rod which can be folded downwards and closed on a cross rod above the U-shaped armrest frame is pivoted above each U-shaped armrest frame; two groups of crossed brackets which are crossed and connected are arranged between the two U-shaped handrail frames. Each cross support comprises a long cross rod, a first cross support rod and a second cross support rod, wherein the first cross support rod and the long cross rod are pivoted together in a cross mode, the second cross support rod is located behind the first cross support rod, and the first cross support rod and the second cross support rod are folded downwards. The utility model discloses simple structure can easily carry out an organic whole and fold into little volume, convenient to use.

The technical scheme of above-mentioned patent application further sets the cushion to collapsible. However, by adopting the technical scheme of folding the left cushion and the right cushion, in the actual use process, if the stress of the left cushion and the stress of the right cushion are uneven due to the sitting posture deviation of a user, the two cushions can be turned down. A large gap is formed between the left and right seat cushions near the buttocks of the user, and the buttocks of the user may be partially inserted into the gap.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application will be solved provides a folding desk chair, folding cushion around setting up, even the user uses and feels comfortable, lets the shared space after accomodating again little.

The technical scheme adopted by the application is as follows: the utility model provides a folding stand chair, includes the back of the chair and cushion subassembly, the cushion subassembly including be close to the first cushion that the back of the chair set up and keep away from the second cushion that the back of the chair set up, first cushion and second cushion articulated, the pin joint is located the bottom of cushion subassembly, the second cushion can overturn downwards for first cushion to overlap with first cushion.

Compared with the prior art, the utility model has the advantages of at first set up first cushion and second cushion, and first cushion is articulated with the second cushion. Make first cushion and the collapsible storage of second cushion, reduce and accomodate shared space after, convenience of customers carries. Secondly, this application sets up that first cushion is close to the back of the chair and sets up, and the second cushion is kept away from the back of the chair and sets up. That is, the first cushion and the second cushion are arranged in the front-back direction, with the user facing the desk chair, the side close to the user being the front side of the desk chair, and the side far away from the user being the back side of the desk chair. Also consequently, the user is when using this application, and the focus of buttock can be concentrated on the contact department of first cushion and second cushion, and even first cushion receives to heavily push down with the second cushion, only can make the one end that first cushion, second cushion kept away from each other upwards rise the perk, and the one end that is close to each other is closer to more, great gap can not appear, also consequently avoided the problem that user's buttock part embedding gap was pressed from both sides to.

In some embodiments of the present application, the first cushion is provided with a first limiting tube, and the second cushion is provided with a second limiting tube; when the desk chair is in use, the first limiting pipe and the second limiting pipe are arranged oppositely.

Furthermore, one of the first limit pipe and the second limit pipe is movably provided with a bolt, and the bolt can be movably connected with the first limit pipe and the second limit pipe.

Specifically, first spacing intraductal install the bolt, the notch has been seted up on first spacing pipe surface, the notch sets up along the axial of first spacing pipe, the latch connection ejector pad, the ejector pad part stretches out the notch, the ejector pad can be followed the length direction removal of notch. The user operates the push block, and drives the bolt to move along the axial direction through the push block. The bolt part inserts the spacing pipe of second, then first spacing pipe and the spacing pipe of second radially by the locking, has just also realized that first cushion and second cushion are locked, and the second cushion can't overturn to first cushion now.

In some embodiments of the present application, the first cushion and the second cushion are connected by a hinge, and the hinge is installed below the first cushion and the second cushion. In this application, first cushion and second cushion all are the cubic structure spare that has certain thickness. Influenced by the thickness of the first cushion and the second cushion, the second cushion can not be turned upwards relative to the first cushion in the state that the cushion assembly is flatly spread (used). Therefore, no additional limit can be made. Of course, for the sake of product optimization, the hinge can be further limited to be turned over, so that the hinge is in a state of being spread by 180 degrees and is in a limit position of the movement state.

In some embodiments of the present application, at least one fastening member is disposed below the second seat cushion, the fastening member is a transverse U-shaped structure, the fastening member is matched with the stand seat, one end of the fastening member is connected to the second seat cushion, and the fastening member is rotatable relative to the second seat cushion. That is to say, under the user state, the fastener can rotate to perpendicular to second cushion, and the fastener can block on seeing the pedestal this moment. And under the non-use condition, the fastener can rotate again and be on a parallel with the second cushion, that is to say the laminating is in the bottom surface of second cushion. Is convenient to store and reduces the storage space.

In some embodiments of the present application, the first cushion includes a rectangular frame disposed at the bottom thereof, and a plurality of first supporting pads are regularly arranged under the frame of the first cushion, and the first supporting pads are disposed along either the long side of the rectangular frame or the short side of the rectangular frame.

The second cushion including setting up the rectangular frame in its bottom, the frame below of second cushion is regularly arranged and is had a plurality of second supporting pad, the second supporting pad or set up along rectangular frame's long limit, or set up along rectangular frame's minor face. Under first cushion and second cushion coincide state, first supporting pad, second supporting pad stagger each other.

So far, the cushion subassembly of this application has satisfied the support demand promptly, can not increase the volume after this application is accomodate by a wide margin again.

Because the top surface of the partially viewed pedestal is not a complete plane structure, the installation may be unstable if the rectangular frame is directly contacted with the top surface of the pedestal. And first supporting pad, second supporting pad are equivalent to a plurality of strong point, remove the installation cushion subassembly through a plurality of strong point, and the stationarity is better.

In the present application, the long side and the short side of the rectangular frame are opposite, i.e. the long side is only longer with respect to the short side, and the short side is also only shorter with respect to the long side.

In some embodiments of the present application, the first seat cushion is provided with a support, and the first seat cushion is connected with the seat back through the support.

The chair back comprises a piece of back cloth, a lower support with a U-shaped structure and two upper support rods hinged on the lower support.

The lower support comprises two lower support rods and a connecting support rod for connecting the two lower support rods. The lower support is integrally formed. The connecting support rod is connected with the support, and the connecting support rod can rotate relative to the support.

Furthermore, the support is provided with a damping piece, and the damping piece is provided with an installation channel for the connecting support rod to pass through.

The surface of the damping piece is provided with an opening communicated with the mounting channel, the opening is arranged along the axial direction of the mounting channel and penetrates through two ends of the damping piece, and the damping piece is sleeved with a sleeve piece which limits the connecting support rod in the mounting channel; the damping piece adopt the nylon material to make, the external member adopt metal material to make.

Through the arrangement of the opening, the mounting channel is a non-closed channel, and the connecting support rod can be simply inserted into the mounting channel from the opening to be mounted in the assembling process. And then assembling the sleeve on the damping piece to complete the assembly. Adopt nylon materials to make damping piece, when connecting support rod was at the installation passageway internal rotation, some frictional force can be provided for connecting support rod to the damping piece for the lower carriage is not under the exogenic action, can keep the state of the angle setting with first cushion. And the metal material sleeve effectively improves the strength of the connecting structure.

The damping piece and the external member form a connecting seat, a limiting groove is formed in the connecting seat, a limiting piece is arranged on the connecting supporting rod and is located in the limiting groove, and the limiting piece is movable in the limiting groove. The limiting piece is matched with the limiting groove to limit the included angle between the chair back and the first cushion to be 0-120 degrees. Preferably, the included angle between the chair back and the first seat cushion is 0-90 degrees. In the storage state, the chair back is turned downwards to be overlapped with the first cushion, and the included angle between the chair back and the first cushion support is 0 degree. In a use state, the chair back is turned upwards to be vertical to the first cushion, and the included angle between the chair back and the first cushion support is 90 degrees.

In some embodiments of the present application, the upper struts correspond one-to-one to the lower struts, the upper struts are hinged to the lower struts, and the upper struts are tiltable downward relative to the lower struts. The back cloth is sleeved on the upper supporting rod and the lower supporting rod, and the back cloth is stretched by the upper supporting rod and the lower supporting rod.

Specifically, the lower supporting rod is provided with a connecting piece, the connecting piece is of a pipe sleeve structure with an opening in the outer peripheral surface, the cross section of the connecting piece is of a U-shaped structure, the lower end of the upper supporting rod extends into the connecting piece, and the upper supporting rod is hinged to the wall surface of the connecting piece. The inner wall surface of the connecting piece is provided with a clamping protrusion; when the upper support rod and the lower support rod are coaxial, the lower end of the upper support rod is positioned between the clamping protrusion and the inner wall of the connecting piece. The utility model provides a set up the card protruding and make the back of the chair under the expansion state, have a spacing between upper strut, the lower branch, under not receiving the exogenic action, upper strut and lower branch can keep coaxial state, strut the back of the body cloth.

Preferably, the upper supporting rod and the lower supporting rod form an L shape after being overturned. At this time, the lower bracket is turned downwards to be parallel to the first cushion, and the upper support rod is positioned on one side of the first cushion.

In some embodiments of this application, this application still can dispose the stretch cord, ties up this application after will folding through the stretch cord, convenient storage or carry.

Drawings

The present application will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the present application. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a first schematic structural view of a use state of the present application;

FIG. 2 is a second schematic structural view of the present application in use;

FIG. 3 is a cross-sectional view of the present application at the latch;

FIG. 4 illustrates a first storage state of the present application;

fig. 5 shows a second storage state of the present application;

fig. 6 is a partially exploded view of the present application.

Wherein the reference numerals are specified as follows: 1. a chair back; 2. a cushion assembly; 21. a first seat cushion; 22. a second seat cushion; 23. a rectangular frame; 24. a first support pad; 25. a second support pad;

3. a first limit tube; 4. a second limiting pipe; 5. a bolt; 6. a push block; 7. a hinge; 8. hanging a fastener; 9. a notch; 10. back cloth; 11. a lower bracket; 111. connecting a support rod; 112. a lower support rod; 113. a connecting member; 12. an upper support rod; 13. installing a channel; 14. a damping member; 15. a limiting groove; 16. a limiting member; 17. clamping convex; 18. a support; 19. A kit; 20. and (4) opening.

Detailed Description

The present application will now be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.

A folding desk chair is disclosed, the embodiment is as shown in figures 1 and 2: including back of the chair 1 and cushion subassembly 2, cushion subassembly 2 including being close to the first cushion 21 that back of the chair 1 set up and keeping away from the second cushion 22 that back of the chair 1 set up, first cushion 21 articulated with second cushion 22, the pin joint is located the bottom of cushion subassembly 2, second cushion 22 can overturn downwards for first cushion 21 to overlapping with first cushion 21. A first cushion 21 and a second cushion 22 are provided, and the first cushion 21 is hinged to the second cushion 22. Make first cushion 21 and the collapsible storage of second cushion 22, reduce and accomodate shared space after, convenience of customers carries. The first cushion 21 is arranged close to the chair back 1, and the second cushion 22 is arranged far away from the chair back 1. That is, the first seat cushion 21 and the second seat cushion 22 are disposed in the front-rear direction, with the user facing the desk chair, the side closer to the user being the front side of the desk chair, and the side farther from the user being the rear side of the desk chair. Also consequently, the user is when using this application, and the focus of buttock can be concentrated on first cushion 21 and the contact department of second cushion 22, and even first cushion 21 receives to heavily push down with second cushion 22, only can make the one end that first cushion 21, second cushion 22 kept away from each other upwards rise to stick up, and the one end that is close to each other is closer to more, great gap can not appear, has also consequently avoided the problem that user's buttock part embedding gap was pressed from both sides.

In the second embodiment, as shown in fig. 1 to 5, a first limiting pipe 3 is arranged on the first seat cushion 21, and a second limiting pipe 4 is arranged on the second seat cushion 22; when the viewing platform chair is in use, the first limiting pipe 3 and the second limiting pipe 4 are arranged oppositely. Furthermore, one of the first limiting pipe 3 and the second limiting pipe 4 is movably provided with a bolt 5, and the bolt 5 can be movably connected with the first limiting pipe 3 and the second limiting pipe 4.

Specifically, first spacing pipe 3 in install bolt 5, notch 9 has been seted up on first spacing pipe 3 surface, notch 9 sets up along the axial of first spacing pipe 3, bolt 5 connect ejector pad 6, 6 parts of ejector pad stretch out notch 9, ejector pad 6 can follow the length direction removal of notch 9. The user operates the push block 6, and the push block 6 drives the bolt 5 to move along the axial direction. The bolt 5 part inserts the spacing pipe 4 of second, then first spacing pipe 3 with the spacing pipe 4 of second in footpath by the locking, has just also realized that first cushion 21 and second cushion 22 are locked, second cushion 22 can't be now to the upset of first cushion 21.

The first cushion 21 is connected with the second cushion 22 through a hinge 7, and the hinge 7 is installed below the first cushion 21 and the second cushion 22. In the present application, the first cushion 21 and the second cushion 22 are both block-shaped structural members having a certain thickness. The second seat cushion 22 cannot be flipped upward relative to the first seat cushion 21 in the flat (use) state of the seat cushion assembly 2 due to the thickness of the first seat cushion 21 and the second seat cushion 22. Therefore, no additional limit can be made. Of course, for the sake of product optimization, the turning-over limit of the hinge 7 may be further performed, so that the hinge 7 is in a state of being spread by 180 degrees to be in an extreme position of its motion state.

Second cushion 22 below be provided with at least one fastener 8, fastener 8 be horizontal U-shaped structure, fastener 8 matches with the stand seat, fastener 8 one end is connected with second cushion 22, fastener 8 is rotatable for second cushion 22. That is, in the use state, the fastener 8 can rotate to be perpendicular to the second seat cushion 22, and at this time, the fastener 8 can be clipped on the seat. In the non-use state, the hook 8 can rotate to be parallel to the second seat 22, i.e. to be attached to the bottom surface of the second seat 22. Is convenient to store and reduces the storage space.

The other contents of the second embodiment are the same as those of the first embodiment.

In the third embodiment, as shown in fig. 2, the first seat cushion 21 includes a rectangular frame 23 disposed at the bottom thereof, a plurality of first supporting pads 24 are regularly arranged under the frame of the first seat cushion 21, and the first supporting pads 24 are disposed along either the long sides of the rectangular frame 23 or the short sides of the rectangular frame 23.

The second cushion 22 including set up the rectangular frame 23 in its bottom, the frame below of second cushion 22 is arranged regularly has a plurality of second supporting pad 25, second supporting pad 25 or set up along the long limit of rectangular frame 23, or set up along the minor face of rectangular frame 23. In the state in which the first seat cushion 21 and the second seat cushion 22 are superimposed, the first support pad 24 and the second support pad 25 are offset from each other.

So far, the cushion subassembly 2 of this application has satisfied the support demand promptly, can not increase the volume after this application is accomodate by a wide margin again.

Since the top surface of the stand is not completely flat in view of partial viewing, there is a possibility that the installation may be unstable if the rectangular frame 23 is directly in contact with the top surface of the stand. And first supporting pad 24, second supporting pad 25 are equivalent to a plurality of strong point, go to install cushion subassembly 2 through a plurality of strong point, and the stationarity is better.

In the present application, the long side and the short side of the rectangular frame 23 are opposite, that is, the long side is longer than the short side, and the short side is shorter than the long side.

The other contents of the third embodiment are the same as those of the first embodiment and the second embodiment.

In a fourth embodiment, as shown in fig. 1, 2 and 5, a support 18 is arranged on the first seat cushion 21, and the first seat cushion 21 is connected with the seat back 1 through the support 18.

The chair back 1 comprises a back cloth 10, a lower bracket 11 with a U-shaped structure and two upper brackets 12 hinged on the lower bracket 11. The lower support 11 includes two lower support rods 112 and a connecting support rod 111 connecting the two lower support rods 112. The lower bracket 11 is integrally formed. The connecting rod 111 is connected to the bearing 18, and the connecting rod 111 is rotatable relative to the bearing 18.

Further, as shown in fig. 6, a damping member 14 is disposed on the support 18, and the damping member 14 is provided with a mounting channel 13 for the connecting rod 111 to pass through.

The surface of the damping piece 14 is provided with an opening communicated with the installation channel 13, the opening 20 is arranged along the axial direction of the installation channel 13, the opening 20 penetrates through two ends of the damping piece 14, the damping piece 14 is sleeved with a sleeve piece 19, and the sleeve piece 19 limits the connecting support rod 111 in the installation channel 13; the damping piece 14 is made of nylon materials, and the sleeve piece 19 is made of metal materials.

By providing the opening 20 such that the mounting channel 13 is a non-closed channel, the connecting rod 111 can be simply inserted into the mounting channel 13 from the opening 20 for mounting during the assembly process. The sleeve 19 is then assembled to the damping member 14, completing the assembly. The damping member 14 is made of nylon material, and when the connecting strut 111 rotates in the mounting channel 13, the damping member 14 can provide some friction force to the connecting strut 111, so that the lower bracket 11 can keep a state of being arranged at an angle with the first seat cushion 21 without being affected by external force. The sleeve 19 made of metal material effectively improves the strength of the connecting structure.

The damping piece 14 and the sleeve piece 19 form a connecting base, a limiting groove 15 is formed in the connecting base, a limiting piece 16 is arranged on the connecting supporting rod 111, the limiting piece 16 is located in the limiting groove 15, and the limiting piece 16 can move in the limiting groove 15. The limiting piece 16 and the limiting groove 15 are matched to limit the included angle between the chair back 1 and the first seat cushion 21 to be 0-120 degrees. Preferably, the included angle between the seat back 1 and the first seat cushion 21 is 0 to 90 degrees. Namely, in the storage state, the seat back 1 is turned downwards to be overlapped with the first seat cushion 21, and the included angle between the seat back 1 and the bracket of the first seat cushion 21 is 0 degree. In a use state, the chair back 1 is turned upwards to be vertical to the first seat cushion 21, and the included angle between the chair back 1 and the bracket of the first seat cushion 21 is 90 degrees.

The upper support rods 12 correspond to the lower support rods 112 one by one, the upper support rods 12 are hinged with the lower support rods 112, and the upper support rods 12 can turn downwards relative to the lower support rods 112. The back cloth 10 is sleeved on the upper support rod 12 and the lower support rod 112, and the back cloth 10 is supported by the upper support rod 12 and the lower support rod 112.

Specifically, the lower support rod 112 is provided with a connecting piece 113, the connecting piece 113 is a pipe sleeve structure with an opening on the outer peripheral surface, the cross section of the connecting piece 113 is a U-shaped structure, the lower end of the upper support rod 12 extends into the connecting piece 113, and the upper support rod 12 is hinged to the wall surface of the connecting piece 113. The inner wall surface of the connecting piece 113 is provided with a clamping protrusion 17; when the upper pole 12 and the lower pole 112 are coaxial, the lower end of the upper pole 12 is located between the locking protrusion 17 and the inner wall of the connecting member 113. The clamping protrusion 17 is arranged, so that the chair back 1 is limited between the upper support rod 12 and the lower support rod 112 in the unfolding state, and the upper support rod 12 and the lower support rod 112 can keep a coaxial state to prop the back cloth 10 open under the action of no external force.

Preferably, the upper support rod 12 is turned over and forms an L-shape with the lower support rod 112. At this time, the lower bracket 11 is turned downward again to be parallel to the first seat cushion 21, and the upper support rod 12 is positioned on the side of the first seat cushion 21.

This application still can dispose the stretch cord, ties up this application after will folding through the stretch cord, conveniently accomodates or carries.

The rest of the fourth embodiment is the same as any of the above embodiments.

The present application has been described in detail above, and specific examples thereof are used herein to explain the principles and implementations of the present application, which are presented solely to aid in understanding the present application and its core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present application, the present application can also make several improvements and modifications, and those improvements and modifications also fall into the protection scope of the claims of the present application.

Claims (11)

1. A folding viewing desk chair is characterized by comprising a chair back (1) and a cushion assembly (2), wherein the cushion assembly (2) comprises a first cushion (21) close to the chair back (1) and a second cushion (22) far away from the chair back (1), the first cushion (21) is hinged with the second cushion (22), the hinged point is positioned at the bottom of the cushion assembly (2), and the second cushion (22) can be downwards overturned relative to the first cushion (21) to be overlapped with the first cushion (21); a first limiting pipe (3) is arranged on the first cushion (21), and a second limiting pipe (4) is arranged on the second cushion (22); when the desk chair is in use, the first limiting pipe (3) and the second limiting pipe (4) are arranged oppositely.

2. A folding desk chair as claimed in claim 1, characterised in that one of the first (3) and second (4) limiting tubes is movably mounted with a bolt (5), the bolt (5) being movable to connect the first (3) and second (4) limiting tubes.

3. A folding chair as claimed in any one of claims 1 to 2, characterised in that said first (21) and second (22) cushions are connected by hinges (7), said hinges (7) being mounted below said first (21) and second (22) cushions.

4. The folding reading desk chair as claimed in claim 1, wherein at least one fastener (8) is arranged below the second seat cushion (22), the fastener (8) is of a transverse U-shaped structure, the fastener (8) is matched with the reading desk seat, one end of the fastener (8) is connected with the second seat cushion (22), and the fastener (8) is rotatable relative to the second seat cushion (22).

5. A folding desk chair as claimed in claim 1, characterised in that said first seat cushion (21) comprises a rectangular frame (23) arranged at the bottom thereof, a plurality of first support cushions (24) being regularly arranged under the frame of the first seat cushion (21), the first support cushions (24) being arranged either along the long sides of the rectangular frame (23) or along the short sides of the rectangular frame (23); the second cushion (22) comprises a rectangular frame (23) arranged at the bottom of the second cushion, a plurality of second supporting pads (25) are regularly arranged below the frame of the second cushion (22), and the second supporting pads (25) are arranged along the long side of the rectangular frame (23) or the short side of the rectangular frame (23); under the overlapping state of the first cushion (21) and the second cushion (22), the first supporting cushion (24) and the second supporting cushion (25) are staggered.

6. A folding chair as claimed in claim 1, characterised in that said back (1) comprises a back cloth (10), a lower support (11) of U-shaped configuration and two upper supports (12) hinged to the lower support (11).

7. A folding desk chair as claimed in claim 6, characterised in that said first seat (21) is provided with a support (18), said first seat (21) being connected to said back (1) by means of said support (18); the lower support (11) comprises two lower support rods (112) and a connecting support rod (111) for connecting the two lower support rods (112); the connecting strut (111) is connected with the support (18), and the connecting strut (111) can rotate relative to the support (18).

8. A folding chair as claimed in claim 7, characterised in that said support (18) is provided with a damping element (14), said damping element (14) being provided with a mounting channel (13) for the passage of the connecting strut (111).

9. A folding desk chair as claimed in claim 8, wherein said damping member (14) has openings (20) on its surface communicating with said mounting channel (13), said openings (20) being disposed along the axial direction of said mounting channel (13), and said openings (20) extending through both ends of said damping member (14), said damping member (14) being sleeved with a sleeve member (19), said sleeve member (19) restraining said connecting rod (111) in said mounting channel (13); the damping piece (14) is made of nylon materials, and the sleeve piece (19) is made of metal materials.

10. The folding chair as claimed in claim 8, wherein the damping member (14) and the sleeve member (19) form a connecting seat, the connecting seat is provided with a limiting groove (15), the connecting rod (111) is provided with a limiting member (16), the limiting member (16) is located in the limiting groove (15), and the limiting member (16) is movable in the limiting groove (15).

11. A folding desk chair as claimed in claim 6, characterised in that the upper struts (12) correspond one to the lower struts (112), the upper struts (12) are hinged to the lower struts (112), the upper struts (12) are tiltable downwards relative to the lower struts (112); the back cloth (10) is sleeved on the upper support rod (12) and the lower support rod (112), and the back cloth (10) is stretched by the upper support rod (12) and the lower support rod (112).

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