CN221469449U - Folding chair - Google Patents

Abstract

The utility model discloses a folding chair, which has an unfolded state and a folded state. In the unfolded state, the folding chair comprises a side bracket, a side enclosure assembly, a backrest and a seat assembly. The side bracket has two groups arranged at intervals along the left and right directions; the side enclosure assembly comprises two side enclosure rods arranged at left and right sides, and the front parts of the side enclosure rods are rotatably connected to the side brackets; the backrest extends in the up-down direction, and the upper part of the backrest is rotatably connected to the rear parts of the side enclosure rods; the seat assembly extends in the front-to-back direction, the front part of the seat assembly is connected to the side brackets, and the rear part of the seat assembly is rotatably connected to the backrest, and the seat assembly can be rotatably arranged relative to the side brackets; when the folding chair is in the folded state, the side enclosure rods, the backrest and the seat assembly are all retracted with the side brackets along the front-to-back direction, and the seat assembly can be folded at different installation heights.

Description

Folding Chair

Technical Field

The utility model relates to a folding chair.

Background technique

In the prior art, most seats can be folded for easy storage and organization. The structures of such seats are different. Among them, some foldable seats are suitable for users of different ages or heights. The seat height can be adjusted, but such seats cannot be folded after the seat height is adjusted. The seat can only be folded after it is adjusted to the initial height, which brings great inconvenience to the user.

Summary of the invention

The purpose of the utility model is to provide a new folding chair.

In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a folding chair, which has an unfolded state and a folded state. In the unfolded state, the folding chair comprises:

A side bracket, wherein the side bracket has two groups arranged at intervals in the left-right direction;

The side enclosure assembly comprises two side enclosure rods which are arranged on the left and right sides and extend in the front-rear direction, and the front parts of the side enclosure rods are rotatably connected to the side bracket on the same side;

A backrest, the backrest extending in the up-down direction, the upper portion of the backrest being rotatably connected to the rear portions of the two side surrounding rods;

A seat assembly is located below the side enclosure assembly, the seat assembly extends in a front-to-back direction, the front portion of the seat assembly is connected to the side bracket, the rear portion of the seat assembly is rotatably connected to the backrest, and the seat assembly can be rotatably arranged relative to the side bracket;

When the folding chair is in a folded state, the side surrounding rods, the backrest and the seat assembly are all folded together with the side brackets along the front-rear direction.

Preferably, the seat assembly is adjustable in mounting height on the backrest and/or on the side bracket, the seat assembly is at different mounting heights, the folding chair has the folded state, and the seat assembly is folded between the backrest and the side bracket.

Preferably, the side support includes a front support rod and a rear support rod each extending in the up-down direction, the upper portion of the rear support rod is rotatably connected to the front support rod, the side enclosure assembly and the seat assembly are both arranged between the front support rods on both sides and connected to the front support rods, and when the folding chair is in a folded state, the front support rod and the rear support rod are folded in the front-to-back direction, the side enclosure assembly is folded behind the front support rod, and the side enclosure assembly is located as a whole above the rear support rod.

Furthermore, the seat assembly includes a first seat body and a second seat body, each extending in the front-to-back direction, the rear portion of the first seat body is rotatably connected to the backrest, the first seat body and the rear portion of the second seat body are rotatably connected, and the front portion of the second seat body is connected to the side brackets on both sides.

Furthermore, a first sliding member is provided on the front support rod, and the first sliding member can be slidably provided on the front support rod along the length extension direction of the front support rod, and the front part of the second seat body is fixedly connected to the first sliding member;

Alternatively, the front portion of the second seat body is detachably connected to the front support rods on both sides.

Preferably, both left and right sides of the rear part of the first seat body have connecting parts protruding and extending backwards, the backrest is located between the two connecting parts along the left-right direction, and the backrest is rotatably connected to the two connecting parts, wherein the connecting parts are detachably connected to the backrest, and the backrest is provided with a plurality of mounting structures distributed in the up-down direction and used to cooperate with the mounting of the connecting parts;

Alternatively, the connecting portion can be slidably disposed on the backrest along a length extension direction of the backrest.

Preferably, the folding chair further comprises a linkage assembly, wherein the linkage assembly is configured to, during the process of the front support rod and the rear support rod being retracted in the front-to-back direction, link the backrest to be retracted relative to the side support in the front-to-back direction.

Furthermore, the linkage assembly includes a connecting rod and a second sliding member, the connecting rod extends in the front-to-back direction, the front portion of the connecting rod is rotatably connected to the front support rod, the rear portion of the connecting rod is rotatably connected to the lower portion of the backrest, the second sliding member is rotatably connected to the connecting rod, and the second sliding member can be slidably arranged on the rear support rod along the length extension direction of the rear support rod.

Furthermore, the linkage assembly has two groups arranged on the left and right sides, a cross bar is fixed between the rear parts of the two groups of connecting rods, and the lower part of the backrest is rotatably connected to the connecting rod around the center line of the cross bar.

Preferably, the folding chair also includes a footrest frame, which is arranged between the side brackets on both sides, and the height of the footrest frame is always lower than the seat assembly, wherein the footrest frame is detachably mounted on the side bracket, or the footrest frame can be slidably arranged on the side brackets on both sides along the up and down directions, so that the footrest frame has a plurality of different installation heights on the side brackets.

Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art: in the folding chair of the utility model, side rods, a backrest, a side bracket and a seat assembly are provided. During the folding process, the side rods, the backrest, the side bracket and the seat assembly are retracted along the front-to-back direction. The structure of the folding chair is arranged in this way, so that the seat assembly is at different installation heights and the folding chair can be folded, which provides convenience for the user.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the three-dimensional structure of a folding chair in a specific embodiment of the utility model in an unfolded state;

Figure 2 is an enlarged schematic diagram of point A in Figure 1;

Figure 3 is an enlarged schematic diagram of point B in Figure 1;

Figure 4 is a front view schematic diagram of Figure 1;

Figure 5 is a side view of Figure 1;

Figure 6 is a schematic diagram of Figure 5 in a first state of the folding process;

Figure 7 is a schematic diagram of Figure 5 in the second state of the folding process;

Figure 8 is a schematic diagram of Figure 5 in a folded state;

Among them: 1. side bracket; 11. front support rod; 111. first sliding member; 112. slide groove; 113. third sliding member; 12. rear support rod; 2. side enclosure assembly; 21. side enclosure rod; 3. backrest; 31. mounting groove; 4. seat assembly; 41. first seat body; 411. connecting part; 42. second seat body; 5. linkage assembly; 51. connecting rod; 511. cross bar; 52. second sliding member; 6. footrest; 7. front cross bar.

Detailed ways

The following descriptions of directions such as up, down, left, right, front, back, inside, and outside are all defined with reference to the directions observed when the folding chair is in the unfolded state and the user is sitting on the folding chair. The purpose is only to clearly illustrate the relative position relationship of the various components of the folding chair.

The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

Referring to a folding chair shown in FIG. 1 , the folding chair has an unfolded state and a folded state, and includes a side support 1, a side enclosure assembly 2, a backrest 3, and a seat assembly 4. In the unfolded state, the side support 1 has two groups spaced apart in the left-right direction. The side enclosure assembly 2 includes two side enclosure rods 21 disposed on the left and right sides and extending in the front-back direction, and the front portion of the side enclosure rods 21 is rotatably connected to the side support 1 on the same side. The backrest 3 extends in the up-down direction, and the upper portion of the backrest 3 is rotatably connected to the rear portions of the two side enclosure rods 21. The seat assembly 4 is located below the side enclosure assembly 2, and the seat assembly 4 extends in the front-back direction, and the front portion of the seat assembly 4 is connected to the side support 1, and the rear portion of the seat assembly 4 is rotatably connected to the backrest 3, and the seat assembly 4 can be rotatably arranged relative to the side support 1.

When the folding chair is in the folded state, the side surrounding rods 21, the backrest 3 and the seat assembly 4 are all folded together with the side bracket 1 along the front-to-back direction. In the front-to-back direction, the size of the folding chair is greatly reduced, which is convenient for storage and arrangement.

In this embodiment, the side support 1 includes a front support rod 11 and a rear support rod 12, each extending in the up-down direction, the upper part of the rear support rod 12 is rotatably connected to the front support rod 11, and the side enclosure assembly 2 and the seat assembly 4 are both arranged between the front support rods 11 on both sides and connected to the front support rod 11. Referring to FIG. 1, in the unfolded state, the front support rod 11 extends obliquely backward from bottom to top, and the upper end of the front support rod 11 is rotatably connected to the front end of the side enclosure rod 21 around the first rotation center line X1. The rear support rod 12 extends obliquely forward from bottom to top, and the upper end of the rear support rod 12 is rotatably connected to the middle part of the front support rod 11 around the second rotation center line X2. Specifically, the middle part of the front support rod 11 is provided with a first connector extending backward from the front support rod 11, the extension direction of the first connector is perpendicular to the extension direction of the front support rod 11, and the upper end of the rear support rod 12 is rotatably connected to the rear part of the connector around the second rotation center line X2. The first rotation center line X1 and the second rotation center line X2 are parallel to each other and both extend in the left-right direction.

1 , in this embodiment, the rear ends of the two side enclosure rods 21 are bent toward each other, and the upper end of the backrest 3 is rotatably connected around the third rotation center line X3 between the rear ends of the two side enclosure rods 21. The third rotation center line X3 is parallel to the first rotation center line X1.

In this embodiment, the installation height of the seat assembly 4 on the backrest 3 and the side bracket 1 is adjustable. When the seat assembly 4 is at different installation heights, the folding chair has a folding state, and in the folding state, the seat assembly 4 can be folded between the backrest 3 and the side bracket 1. In this embodiment, the seat assembly 4 includes a first seat body 41 and a second seat body 42, each extending in the front-to-back direction. The rear part of the first seat body 41 is rotatably connected to the backrest 3, the front part of the first seat body 41 is rotatably connected to the rear part of the second seat body 42, and the front part of the second seat body 42 is connected to the side brackets 1 on both sides. As shown in FIG. 1, the first seat body 41 and the second seat body 42 are rotatably connected around the fourth rotation center line X4, and the fourth rotation center line X4 also extends in the left-right direction. The size of the first seat body 41 in the front-to-back direction is larger than that of the second seat body 42. In the unfolded state, the user sits more on the first seat body 41.

In this embodiment, the second seat body 42 is slidably connected to the front support rod 11 along the length direction of the front support rod 11, and the rear part of the first seat body 41 is detachably connected to the backrest 3. Specifically, a first sliding member 111 is provided on the front support rod 11, and the first sliding member 111 can be slidably arranged on the front support rod 11 along the length extension direction of the front support rod 11. The front part of the second seat body 42 is fixedly connected to the first sliding member 111, so that the second seat body 42 can slide up and down and adjust the height. In this embodiment, referring to Figures 1 and 2, the inner side of each front support rod 11 is provided with a slide groove 112 extending along its own length direction, and the first sliding member 111 is slidably arranged in the slide groove 112, so as to achieve relative sliding between the first sliding member 111 and the front support rod 11. A locking mechanism for locking the first sliding member 111 and the front support rod 11 is also provided between the first sliding member 111 and the front support rod 11, so that the second seat body 42 can be maintained at a certain height, and then the seat assembly 4 can be maintained at a certain height. In other embodiments, the front portion of the second seat body 42 is detachably connected to the front support rods 11 on both sides to achieve height adjustment of the second seat body 42 .

In this embodiment, both left and right sides of the rear part of the first seat body 41 have connecting parts 411 protruding and extending backwards, the backrest 3 is located between the two connecting parts 411 along the left-right direction, and the backrest 3 is rotatably connected to the two connecting parts 411 around the fifth rotation center line X5, and the fifth rotation center line X5 extends along the left-right direction. In this embodiment, the connecting part 411 is also detachably connected to the backrest 3, and the backrest 3 is provided with a plurality of mounting structures distributed along the up-down direction and used to cooperate with the mounting connecting part 411. Specifically, the mounting structure is a plurality of mounting grooves 31 arranged at intervals on both sides of the backrest 3 along the length direction of the backrest 3, and the connecting part 411 is provided with a connecting piece (not shown in the figure) that can be inserted into the mounting groove 31. The connecting piece is movably arranged on the connecting part 411 along the left-right direction, and the connecting piece can be inserted into the mounting groove 31 or detached from the mounting groove 31 by driving the connecting piece to move left and right. The axis of the connecting piece extends colinearly with the fifth rotation center line X5, and the rotation connection between the first seat body 41 and the backrest 3 is realized by the connecting piece. When the connecting member is inserted into the installation groove 31, the height of the first seat body 41 is fixed. When the connecting member is disengaged from the installation groove 31, the first seat body 41 can be driven to move up and down and the height can be adjusted. In other embodiments, the connecting portion 411 can be slidably arranged on the backrest 3 along the length extension direction of the backrest 3, so that the connecting portion 411 is connected to the backrest 3 in a sliding and rotating manner, and the height of the first seat body 41 is changed by driving the relative sliding between the two.

When the height of the seat assembly 4 needs to be adjusted, the lock between the first sliding member 111 and the front support rod 11 is released, and the connecting member is driven to disengage from the installation groove 31, and the seat assembly 4 is moved up and down by the opposite side bracket 1. After moving to the required height, the first sliding member 111 and the front support rod 11 are locked, and at the same time, the connecting member is driven to move toward the backrest 3 and inserted into the installation groove 31, so that the seat assembly 4 can be maintained at the installation height.

In this embodiment, the folding chair further includes a linkage assembly 5. When the front support rod 11 and the rear support rod 12 are folded together in the front-to-back direction, the linkage assembly 5 is linked to make the side bracket 1 of the backrest 3 fold together in the front-to-back direction. In this embodiment, the linkage assembly 5 includes a connecting rod 51 and a second sliding member 52. In the unfolded state, the connecting rod 51 extends in the front-to-back direction, the front part of the connecting rod 51 is rotatably connected to the front support rod 11, the rear part of the connecting rod 51 is rotatably connected to the lower part of the backrest 3, and the second sliding member 52 is rotatably connected to the connecting rod 51. The second sliding member 52 can be slidably arranged on the rear support rod 12 along the length extension direction of the rear support rod 12.

As shown in FIG. 1 , the linkage assembly 5 has two groups disposed on the left and right sides, and is located on the left and right sides of the folding chair. The front portion of the connecting rod 51 is rotatably connected to the middle portion of the front support rod 11 around the sixth rotation center line X6, and the sixth rotation center line X6 is parallel to the second rotation center line X2. Specifically, the connecting rod 51 is rotatably connected to the second connecting head extending backward from the front support rod 11, and the second connecting head is located below the first connecting head in the up-down direction, and the sixth rotation center line X6 is located below the second rotation center line X2.

A cross bar 511 is fixed between the rear parts of the two groups of connecting rods 51, and the lower part of the backrest 3 is rotatably connected to the connecting rod 51 around the center line of the cross bar 511. The second sliding member 52 is rotatably connected to the connecting rod 51 around the seventh rotation center line X7, and the sixth rotation center line X6, the seventh rotation center line X7, and the center line of the cross bar 511 are parallel to each other, and in the unfolded state, the sixth rotation center line X6, the seventh rotation center line X7, and the center line of the cross bar 511 are distributed sequentially from front to back.

In other embodiments, the linkage assembly 5 is disposed between the rear support rod 12 and the backrest 3, and when the front support rod 11 and the rear support rod 12 are folded together in the front-to-back direction, the rear support rod 12 drives the backrest 3 to fold together in the front-to-back direction relative to the side bracket 1 through the linkage assembly 5. In other embodiments, the linkage assembly 5 may not be disposed.

In this embodiment, the folding chair further comprises a footrest 6, which is arranged between the side brackets 1 on both sides, and the height of the footrest 6 is always lower than the seat assembly 4. When the user sits on the folding chair, both feet can be supported on the footrest 6. The footrest 6 can be slidably arranged on the side brackets 1 on both sides in the up and down direction, so that the footrest 6 has a plurality of different installation heights on the side brackets 1. The user can adjust the footrest 6 to the most comfortable position according to his or her own age, height, etc. Referring to FIG. 1 and FIG. 3, each front support rod 11 is provided with a third sliding member 113, and the third sliding member 113 is slidably arranged in the slide groove 112. The two sides of the footrest 6 are respectively connected to the two third sliding members 113, so that the footrest 6 can slide up and down along the length extension direction of the front support rod 11. In other embodiments, the footrest 6 is detachably mounted on the side bracket 1, so as to achieve the height adjustment of the footrest 6.

In addition to supporting the user's feet, the footrest frame 6 also enhances the stability between the two side brackets 1. In this embodiment, in order to further enhance the stability of the folding chair in the left and right directions, a front cross bar 7 is provided between the lower parts of the front support rods 11 on both sides. The front cross bar 7 extends in the left and right directions, and in the up and down directions, the front cross bar 7 is always located below the footrest frame 6.

When the folding chair is in the unfolded state, as shown in FIGS. 1 to 5 , the front support rod 11 and the rear support rod 12 are relatively unfolded, and a triangle is formed between the front support rod 11, the rear support rod 12 and the connecting rod 51, so as to provide stable support. In this state, the side bracket 1, the side surrounding rod 21, the backrest 3 and the connecting rod 51 form a stable seat frame, and the user can adjust the height of the seat assembly 4 on this seat frame according to his or her age, height or other needs. In the unfolded state, the first seat body 41 mainly plays the role of providing sitting support for the user. It extends downward from the front to the back, and the user is more comfortable when sitting on it. At the same time, the second seat body 42 is tilted downward from the back to the front, and the user's legs can be placed on the second seat body 42, and the feet can be suspended in the air or supported on the footrest 6. The backrest 3 extends backward from the bottom to the top, and the user is more comfortable when leaning back on the backrest 3. The two side surrounding rods 21 located on both sides can provide lateral protection and can also be used as armrests.

When the folding chair is to be folded, as shown in Figures 6 and 7, the backrest 3 is pressed down to drive it to move downward, and the backrest 3 drives the side surrounding rods 21 to rotate downward around the second rotation center line X2. At the same time, the backrest 3 drives the first seat body 41 and the connecting rod 51 to flip downward, and the connecting rod 51 drives the second sliding member 52 to slide downward relative to the rear support rod 12. The connecting rod 51 and the second sliding member 52 drive the front support rod 11, the rear support rod 12 and the backrest 3 to fold along the front-to-back direction, and the backrest 3 drives the side surrounding rods 21, the first seat body 41 and the connecting rod 51 to fold relative to the front support rod 11.

When the folding chair is in the folded state, as shown in Figure 8, the front support rod 11 and the rear support rod 12 are folded together in the front-to-back direction, the side panel assembly 2 is folded behind the front support rod 11, and the side panel assembly 2 is located above the rear support rod 12 as a whole. In the front-to-back direction, the seat assembly 4 is folded between the front support rod 11 and the side panel assembly 2, and in the left-to-right direction, the backrest 3 and the seat assembly 4 are folded between the side brackets 1 on both sides.

In summary, the seat assembly 4 of the folding chair of this embodiment is height-adjustable, so that the folding chair can be used for people of different ages and heights, and can also be used in different usage environments. In the unfolded state, the side bracket 1, the side surrounding rod 21, the backrest 3 and the connecting rod 51 form a stable seat frame, and the seat assembly 4 is height-adjustable on this frame. Regardless of the installation height of the seat assembly 4, the folding chair can be folded, which is convenient for the user to operate, and the folded folding chair is compact in structure along the front-to-back direction, which is convenient for storage and arrangement.

The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims (10)

1. A folding chair having an unfolded state and a folded state, characterized in that: in an unfolded state, the folding chair includes:

the side brackets are provided with two groups which are arranged at intervals along the left-right direction;

The side wall assembly comprises two side wall rods which are respectively arranged at the left side and the right side and extend along the front-back direction, and the front parts of the side wall rods are rotationally connected to the side brackets at the same side;

The backrest extends in the vertical direction, and the upper part of the backrest is rotationally connected with the rear parts of the two side wall bars;

The seat assembly is positioned below the side wall assembly, the seat assembly extends in the front-rear direction, the front part of the seat assembly is connected to the side bracket, the rear part of the seat assembly is rotatably connected to the backrest, and the seat assembly can be rotatably arranged relative to the side bracket;

When the folding chair is in a folding state, the side wall bar, the backrest and the seat assembly are folded with the side bracket along the front-back direction.

2. The folding chair as in claim 1, wherein: the seat assembly is arranged on the backrest and/or the side brackets in an adjustable mode, the seat assembly is arranged at different mounting heights, the folding chairs are in the folding state, and the seat assembly is folded between the backrest and the side brackets.

3. The folding chair as in claim 1, wherein: the side bracket comprises a front supporting rod and a rear supporting rod which extend along the up-down direction respectively, the upper part of the rear supporting rod is rotationally connected with the front supporting rod, the side wall component and the seat component are arranged between the front supporting rods at the two sides and are connected with the front supporting rod,

The folding chair is in a folding state, the front support rod and the rear support rod are folded along the front-rear direction, the side wall assembly is folded at the rear of the front support rod, and the side wall assembly is integrally located above the rear support rod.

4. A folding chair as claimed in claim 3, wherein: the seat assembly comprises a first seat body and a second seat body, wherein the first seat body and the second seat body extend in the front-back direction respectively, the rear part of the first seat body is rotationally connected to the backrest, the first seat body is rotationally connected with the rear part of the second seat body, and the front part of the second seat body is connected to the side brackets on two sides.

5. The folding chair as in claim 4, wherein: the front support rod is provided with a first sliding piece, the first sliding piece can be slidably arranged on the front support rod along the length extension direction of the front support rod, and the front part of the second seat body is fixedly connected with the first sliding piece;

or the front part of the second seat body is detachably connected with the front struts on two sides.

6. The folding chair as in claim 4, wherein: the left side and the right side of the rear part of the first seat body are respectively provided with a connecting part which protrudes backwards, the backrest is positioned between the two connecting parts along the left-right direction, the backrest is rotationally connected with the two connecting parts, the connecting parts are detachably connected with the backrest, and the backrest is provided with a plurality of mounting structures which are distributed along the up-down direction and are used for being matched with the connecting parts;

or the connecting part can be arranged on the backrest in a sliding way along the length extending direction of the backrest.

7. A folding chair as claimed in claim 3, wherein: the folding chair further comprises a linkage assembly, wherein the linkage assembly is configured to enable the backrest to be folded along the front-rear direction relative to the side support in a linkage manner in the process that the front support and the rear support are folded along the front-rear direction.

8. The folding chair as in claim 7, wherein: the linkage assembly comprises a connecting rod and a second sliding part, the connecting rod extends along the front-back direction, the front part of the connecting rod is rotationally connected to the front supporting rod, the rear part of the connecting rod is rotationally connected with the lower part of the backrest, the second sliding part is rotationally connected to the connecting rod, and the second sliding part can be slidingly arranged on the rear supporting rod along the length extending direction of the rear supporting rod.

9. The folding chair as in claim 8, wherein: the linkage assembly is provided with two groups which are respectively arranged at the left side and the right side, a cross rod is fixedly arranged between the rear parts of the two groups of connecting rods, and the lower part of the backrest is rotationally connected with the connecting rods around the central line of the cross rod.

10. The folding chair as claimed in any one of claims 1 to 9, wherein: the folding chair further comprises a pedal frame, wherein the pedal frame is arranged between the side brackets on two sides, the height of the pedal frame is always lower than that of the seat assembly, and the pedal frame is detachably arranged on the side brackets, or the pedal frame can be arranged on the side brackets on two sides in a sliding manner along the up-down direction, so that the pedal frame is provided with a plurality of different installation heights on the side brackets.