Folding chair

Abstract

The application discloses a folding chair, which comprises a seat part provided with a seat surface, a supporting leg part rotatably arranged symmetrically below the seat part, an armrest part rotatably arranged symmetrically above the seat part, and a backrest part rotatably arranged upwardly at the rear end of the seat part, wherein the armrest part is fixedly connected with the supporting leg part; the folding chair is unfolded by locking the armrest part and the backrest part; and the supporting leg part is folded and attached to the lower side of the seat part and the backrest part is folded and attached to the upper side of the seat part by releasing the lock of the armrest part and the backrest part. The locking of the armrest part and the backrest part can complete the locking of the whole folding chair. When folding is needed, the locking of the armrest part and the backrest part is released, the supporting leg part is folded and attached to the lower side of the seat part, and the backrest part is folded and attached to the upper side of the seat part, and the folding chair is in a plate-shaped structure after folding. The folding chair has a folding mode different from the prior art, and has reasonable structure, convenient folding, and easy storage and transportation.

Description

TECHNICAL FIELD

[0001] The present application relates to a chair for people to rest, in particular to a foldable folding chair. BACKGROUND

[0002] With the development of science and technology and the progress of human culture, chairs have gradually become one of the most frequently used seats by people. With the development of industry in recent years, people's demand for material culture has generally improved, and there is an increasingly high experience and pursuit of chairs, so there is the emergence of folding chairs. Folding chairs are favored by people because of their self-contained characteristics. When needed, they are unfolded and sat on, and when not needed, they are folded up, without wasting space and with strong portability. The folding chairs on the market are inconvenient to fold and have overly complex structures, which makes their rationality questionable.

[0003] Therefore, there is an urgent need for a folding chair with a reasonable structure design, convenient folding and a folding mode different from the past. SUMMARY

[0004] The purpose of the present application is to provide a folding chair with a folding mode different from the past, which is reasonable in structure design and convenient to fold.

[0005] To achieve the above-mentioned purpose, the present application provides a folding chair, which comprises a seat part provided with a seat surface, a support leg part rotatably arranged symmetrically below the left and right sides in the width direction of the seat part, an armrest part rotatably arranged symmetrically above the left and right sides in the width direction of the seat part, and a backrest part rotatably arranged upwardly at the rear end of the seat part, wherein the armrest part and the support leg part are fixedly connected; the folding chair is unfolded by locking the armrest part and the backrest part; and the support leg part is folded and attached to the lower side of the seat part, and the backrest part is folded and attached to the upper side of the seat part by releasing the lock of the armrest part and the backrest part.

[0006] Compared with the prior art, the folding chair of the present application can complete the locking of the whole folding chair by locking the armrest part and the backrest part, so that the folding chair is in the locked unfolded state for the user to sit on. The unfolded folding chair is pulled by the armrest part to simultaneously pull the support leg part and the backrest part, so that the three parts are in a mutual force relationship, avoiding the damage of a single part due to excessive force, and ensuring the stability of the structure. When folding is needed, the locking of the armrest part and the backrest part is released, the support leg part is turned downward to be attached to the seat part to complete the folding of the support leg part, and the backrest part is turned upward to be attached to the seat part to complete the folding of the backrest part. The whole folding chair is in a plate structure after folding, the folding operation is simple, the space is regular and very small after folding, and the folding chair is easy to store and transport. Therefore, the folding chair of the present application has a different folding mode from the prior art, and the folding chair has a reasonable structure and is easy to fold, store and transport.

[0007] Preferably, the line between the connecting point of the armrest part and the support leg part and the locking point of the armrest part and the backrest part of the folding chair of the present application forms a triangle.

[0008] Preferably, the triangle of the folding chair of the present application is an obtuse triangle.

[0009] Preferably, the folding chair of the present application further comprises a locking mechanism, the locking mechanism comprising a locking piece arranged on the armrest part near the backrest part to lock the armrest part and the backrest part.

[0010] Preferably, the backrest part of the folding chair of the present application is provided with a locking hole, and the armrest part and the backrest part are locked by the locking piece passing through the locking hole.

[0011] Preferably, one end of the locking piece of the folding chair of the present application is connected with the armrest part, and the other end of the locking piece is further rotationally connected with a blocking piece; the locking piece is located in the locking hole by the blocking piece passing through the locking hole, and the blocking piece is bent relative to the locking piece to block outside the locking hole, so as to lock the armrest part and the backrest part.

[0012] Preferably, the armrest part and the support leg part of the folding chair of the present application are in an integral structure.

[0013] Preferably, the armrest part and the support leg part of the folding chair of the present application are bent from the same profile.

[0014] Preferably, the folding chair of the present application is in an unfolded state, and the backrest part is inclined backward relative to the seat part.

[0015] Preferably, the folding chair of the present application further comprises a connector fixedly connected to the armrest portion, the connector comprising a fixed portion and a rotating portion, the armrest portion is fixedly connected to the support leg portion by the fixed portion, and the armrest portion is rotatably connected to the seat portion by the rotating portion.

[0016] Preferably, the folding chair of the present application further comprises a blocking member arranged on the armrest portion, the blocking member blocks the backrest portion from tilting away from the seat portion when the folding chair is unfolded.

[0017] Preferably, the backrest portion of the folding chair of the present application has a structure of being wider at the top and narrower at the bottom.

[0018] Preferably, the folding chair of the present application further comprises a protective sleeve of flexible structure arranged on the armrest portion.

[0019] Preferably, the folding chair of the present application further comprises an anti-skid member arranged on the support leg portion for preventing skidding when the folding chair is in contact with the ground.

[0020] Preferably, the folding chair of the present application has a structure of being unfolded, and the two support leg portions have an outward splayed structure.

[0021] Preferably, the folding chair of the present application has a structure of being unfolded, and the two support leg portions have an outward splayed structure.

[0022] Preferably, the folding chair of the present application further comprises a bearing member of flexible structure arranged on the seat portion and the backrest portion. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of the folding chair of the present application when it is completely unfolded.

[0024] Figure 2 is Figure 1 is a structural schematic view of the folding chair of the present application when it is completely unfolded and locked.

[0025] Figure 3 is Figure 1 is a structural schematic view of the folding chair of the present application when it is completely folded.

[0026] Figure 4 is Figure 3 is another structural schematic view of the folding chair of the present application.

[0027] Figure 5 is Figure 1 is a structural schematic view of the folding chair of the present application after the bearing member is removed.

[0028] Figure 6 is Figure 2 is a structural schematic view of the folding chair of the present application after the bearing member is removed.

[0029] Figure 7is Figure 6 Enlarged view of the middle E part.

[0030] Figure 8a is the structure diagram of the lock of the application.

[0031] Figure 8b is the structure diagram of the adapter of the application.

[0032] Figure 8c is Figure 8b the exploded view. DETAILED DESCRIPTION

[0033] Embodiments of the application will now be described, by way of example only, with reference to the accompanying drawings in which:

[0034] As Figures 1-8cAs shown, the folding chair of the present application comprises a seat part 1 provided with a seat surface, support leg parts 2 rotatably provided symmetrically below the seat part 1 at left and right sides in the width direction thereof, armrest parts 3 rotatably provided symmetrically above the seat part 1 at left and right sides in the width direction thereof, and a backrest part 4 rotatably provided upwardly at the rear end of the seat part 1, and the armrest parts 3 are fixedly connected with the support leg parts 2. Specifically, the folding chair of the present application further comprises a connector 5 fixedly connected with the armrest parts 3, the connector 5 comprises a fixed part 51 and a rotating part 52, the armrest parts 3 are fixedly connected with the support leg parts 2 by means of the fixed part 51, and the armrest parts 3 are rotatably connected with the seat part 1 by means of the rotating part 52; more specifically, the fixed part 51 and the rotating part 52 are both in the form of sleeve structure, the fixed part 52 is fixedly sleeved on the pipe of the armrest parts 3, the rotating part 52 is rotatably sleeved on the pipe of the seat part 1, and the fixed part 51 and the rotating part 52 are fixedly connected by means of two pins 54 and 55 through an intermediate connecting piece 53. The folding chair is in unfolded state by locking the armrest parts 3 and the backrest part 4, and the support leg parts 2 are rotatably folded and attached to the lower side of the seat part 1, and the backrest part 4 is rotatably folded and attached to the upper side of the seat part 1 by releasing the lock of the armrest parts 3 and the backrest part 4. As can be seen from the above, since the folding chair of the present application, the locking of the armrest parts 3 and the backrest part 4 can complete the locking of the whole folding chair, so that the folding chair is in the locked unfolded state for the user to sit and use, and the unfolded folding chair is pulled by the armrest parts 3 at the same time to pull the support leg parts 2 and the backrest part 4, so that the three parts form a mutual force relationship, avoiding the damage caused by the excessive force on a single part, and ensuring the stability of the structure. When folding is needed, only the locking of the armrest parts 3 and the backrest part 4 is released, the support leg parts 2 are rotated toward the lower side of the seat part 1 to be attached to the seat part 1 to complete the folding of the support leg parts 2, and the backrest part 4 is rotated toward the upper side of the seat part 1 to be attached to the seat part 1 to complete the folding of the backrest part 4, and the whole folding chair is in the form of plate structure after folding, the folding operation is simple, the space is regular and extremely small after folding, and the folding chair is convenient for storage and transportation. As can be seen from the above, the folding chair of the present application has a different folding mode from the prior art, and the folding chair has reasonable structure design and is convenient for folding, storage and transportation. Figures 1-6 The folding chair of the present application is further described in detail as follows:

[0035] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 , preferably, in order to further increase the stability and structural innovation of the folding chair of the present application, the connecting lines between the connecting points A and B of the armrest parts 3 and the support leg parts 2 and the locking point C of the armrest parts 3 and the backrest part 4 form a triangle D (see Figure 5The effective use of the stability of the triangle further improves the stability of the folding chair, and the triangular structure formed between the armrest part 3 and the support leg part 2 and the backrest part 4 effectively breaks through the traditional four-sided armrest design concept, and the structure design is novel and reliable. Specifically, the triangle is an obtuse triangle, and the outward expansion trend of the two sides of the obtuse triangle makes the backrest of the folding chair have a tilting trend, which increases the stability of the structure and the comfort during use.

[0036] As Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8a shown, preferably, the folding chair further comprises a locking mechanism, the locking mechanism comprises a locking piece 6, the locking piece 6 is arranged on the armrest part 3 adjacent to the backrest part 4, and the armrest part 3 and the backrest part 5 are locked by the locking piece 6, so that the unfolded folding chair is locked. Specifically, the pipe of the armrest part 3 is sleeved with a fixed ring 30, the fixed ring 30 has a locking piece 6 protruding therefrom, the backrest part 4 is provided with a locking hole 41, and the backrest part 4 is provided with a fixing piece 42, the fixing piece 42 is a sleeve structure, the pipe of the backrest part 4 is sleeved and fixed by the sleeve structure of the fixing piece 42, and the locking hole 41 is arranged on the fixing piece 42. The armrest part 3 and the backrest part 4 are locked by the locking piece 6 passing through the locking hole 41. Further, one end of the locking piece 6 is connected with the armrest part 3, and the other end of the locking piece 6 is further rotationally connected with a blocking piece 7; the locking piece 6 is located in the locking hole 41 by the blocking piece 7 passing through the locking hole 41, and the blocking piece 7 is bent relative to the locking piece 6 and blocks outside the locking hole 41, so that the armrest part 3 and the backrest part 4 are locked.

[0037] It is worth noting that in the unfolded state shown in Figure 1 and Figure 5 , the locking piece 6 and the blocking piece 7 both pass through the locking hole 41, but the blocking piece 7 has not been bent for further locking. Figure 2 and Figure 6 shown in the unfolded state, the blocking piece 7 is rotated relative to the locking piece 6 to form a bent shape, thereby further locking, preventing the locking piece 6 from being withdrawn from the locking hole 41 due to factors such as shaking and shaking during use, thereby causing unexpected situations.

[0038] As Figure 5 and Figure 6As shown, preferably, the armrest 3 and the support leg 2 of the folding chair of the present invention are integrally formed. Specifically, the armrest 3 and the support leg 2 are bent from the same profile, which makes the connection between the armrest and the support leg more firm and reliable, greatly increases the strength of the entire folding chair and simplifies the manufacturing process, while also enhancing the connection and support strength with the backrest 4.

[0039] like Figures 5-7 As shown, preferably, to improve user comfort, when the folding chair of the present invention is unfolded, the backrest 4 is tilted backward relative to the seat 1. To improve the stability of the present invention, a blocking member 31 is provided on the armrest 3 of the folding chair. When the folding chair is unfolded, the blocking member 31 blocks the backrest 4, preventing the backrest 4 from tilting away from the seat 1.

[0040] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, preferably, to improve comfort, the backrest 4 of the folding chair of the present invention has a structure that is wider at the top and narrower at the bottom. The armrests 3 of the folding chair of the present invention are fitted with a protective sleeve 32 of a flexible structure. The support legs 2 of the folding chair of the present invention are provided with anti-slip parts 21 for preventing slippage when in contact with the ground. To further improve the stability of the folding chair of the present invention and ensure safety, the folding chair of the present invention is in an unfolded state, and the two support legs 2 have an outward V-shaped structure.

[0041] Preferably, the seat 1, supporting legs 2, backrest 4, and armrests 3 of the folding chair of the present invention are all tubular structures. Using a tubular structure saves on manufacturing processes while ensuring sufficient support strength, making it highly practical and very suitable for mass production.

[0042] like Figure 1 and Figure 2 As shown, preferably, the seat 1 and backrest 4 of the folding chair of the present invention are both provided with a flexible support member (not shown in the figure) in a taut state. The support member is usually made of existing materials such as cloth, woven material or plastic tape that are easy to fold and have supporting strength and corrosion resistance.

[0043] Combination Figures 1-8cAs shown, by locking the armrest part 3 and the backrest part 4, the whole folding chair is locked, and the folding chair is in the locked unfolded state for a user to sit on. When folding is needed, the locking of the armrest part 3 and the backrest part 4 is released, the support leg part 2 is rotated downwards to be attached to the seat part 1 to complete the folding of the support leg part 2, the backrest part 4 is rotated upwards to be attached to the seat part 1 to complete the folding of the backrest part 4, and the whole folding chair is in a plate-shaped structure after folding, the folding operation is simple, the space is regular and extremely small after folding, and the folding chair is convenient for storage and transportation. The folding chair has a different folding mode from the prior art, the structure is reasonable, folding is convenient, and the folding chair is easy to store and transport.

[0044] The above only discloses preferred embodiments of the present application, and of course cannot limit the scope of the patent right of the present application, and thus equivalent changes made within the patent application scope of the present application still fall within the scope of the present application.

Claims

1. A folding chair, characterized in that The folding chair comprises a seat part provided with a seat surface, support leg parts rotatably arranged symmetrically below left and right sides of the seat part in the width direction, armrest parts rotatably arranged symmetrically above left and right sides of the seat part in the width direction, and a backrest part rotatably arranged upwardly at the rear end of the seat part, wherein the armrest parts are fixedly connected with the support leg parts; the folding chair further comprises a locking mechanism, which comprises a locking member arranged on the armrest part near the backrest part to lock the armrest part and the backrest part; The folding chair is unfolded by locking the armrest part and the backrest part, and the support leg parts are folded and attached to the lower side of the seat part and the backrest part is folded and attached to the upper side of the seat part by releasing the lock of the armrest part and the backrest part; the line between the connecting point of the armrest part and the support leg part and the locking point of the armrest part and the backrest part forms a triangle.

2. The folding chair of claim 1, wherein, The triangle is an obtuse triangle.

3. The folding chair of claim 1, wherein, The backrest part is provided with a locking hole, and the armrest part and the backrest part are locked by the locking member passing through the locking hole.

4. The folding chair of claim 3, wherein, One end of the locking member is connected with the armrest part, and the other end of the locking member is further rotatably connected with a blocking member; the locking member is located in the locking hole by the blocking member passing through the locking hole, and the blocking member is bent relative to the locking member to block outside the locking hole, thereby realizing the locking of the armrest part and the backrest part.

5. The folding chair of claim 1, wherein, The armrest part and the support leg part are of an integral structure.

6. The folding chair of claim 5, wherein, The armrest part and the support leg part are bent from the same profile.

7. The folding chair of claim 1, wherein, The armrest part is provided with a blocking member, the folding chair is unfolded, and the blocking member blocks the backrest part from tilting away from the seat part.

8. The folding chair of claim 1, wherein, The folding chair further comprises an adapter fixedly connected with the armrest part, wherein the adapter comprises a fixed part and a rotating part, the armrest part and the support leg part are fixedly connected by the fixed part, and the armrest part is rotatably connected with the seat part by the rotating part.

9. The folding chair of claim 1, wherein, The folding chair is unfolded, and the two support leg parts are of an outward eight-shaped structure.

10. The folding chair of claim 1, wherein, The seat part, the support leg part, the backrest part and the armrest part are of a tubular structure or a flat plate structure.

11. The folding chair of claim 1, wherein, The seat part and the backrest part are provided with flexible load-bearing members in a tight state.

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