Folding chair

Abstract

The utility model relates to the technical field of seats, in particular to a folding chair which comprises a chair frame and a flexible supporting body mounted on the chair frame. The chair frame comprises a left supporting leg and a right supporting leg which are arranged in a crossed mode, each of the left supporting leg and the right supporting leg comprises a lower supporting portion and an upper supporting portion, and the crossed point is arranged on the lower supporting portions of the left supporting leg and the right supporting leg. The left supporting leg and the right supporting leg are provided with two front supporting rods and two rear supporting rods respectively, the two front supporting rods and the two rear supporting rods are arranged left and right, the tops of the front supporting rods and the tops of the rear supporting rods are hinged to the upper supporting parts on the corresponding sides, and the bottoms of the front supporting rods and the bottoms of the rear supporting rods are hinged to the lower supporting parts on the corresponding sides. When the seat needs to be folded, one side of the seat is lifted, so that the supporting legs on the side are separated from the ground; when the folding chair is folded, the two upper supporting parts are held by two hands respectively and then are folded downwards, at the moment, the upper supporting parts are turned and folded downwards relative to the lower supporting parts, the lower supporting parts in the left supporting leg and the right supporting leg and the flexible supporting body on the chair frame are folded at the same time under the driving of the front supporting rod and the rear supporting rod, and the folding mode is simple and convenient.

Description

Technical Field

[0001] The present application relates to the technical field of seats, and in particular to a folding chair. Background Art

[0002] Folding chairs are popular because of their light structure, stackability, and ease of movement and storage. However, most folding chairs currently require the backrest and seat to be folded separately during the folding process. This type of folding chair is cumbersome to fold, inconvenient to fold or unfold, and inconvenient to carry. Therefore, further improvements can be made. Summary of the invention

[0003] In order to improve the folding convenience of a folding chair, the present application provides a folding chair.

[0004] The folding chair provided in this application adopts the following technical solution:

[0005] A folding chair, comprising a chair frame and a flexible support body installed on the chair frame; the chair frame comprises a left leg, a right leg, a front support rod, and a rear support rod, the left leg and the right leg are cross-arranged, the left leg and the right leg both comprise a lower support portion and an upper support portion, and the intersection point between the left leg and the right leg is arranged at the lower support portions of the two; the upper support portion is hinged to the lower support portion, and the upper support portion can be locked after being flipped upward and opened relative to the lower support portion; the front support rod and the rear support rod are respectively arranged front and back, and there are two of the front support rod and the rear support rod and they are arranged left and right, and their tops are hinged to the upper support portion on the corresponding side, and their bottoms are hinged to the lower support portion on the corresponding side; the flexible support body is installed between the front support rod and the rear support rod, and the front and rear sides of the flexible support body are respectively supported and connected to the front support rod and the rear support rod.

[0006] By adopting the above technical solution, when the seat needs to be folded up, lift one side of the seat (it can be the left or right side) to lift the leg on that side off the ground; then hold the two upper support parts with both hands respectively and bend them downward. At this time, the upper support part is flipped and folded downward relative to the lower support part, and driven by the front support rod and the rear support rod, the lower support part of the left leg, the right leg and the flexible support body on the chair frame are folded up at the same time, and the folding method is relatively simple.

[0007] Optionally, the lower support part and the upper support part are hinged by a U-shaped sleeve, and the opening of the U-shaped sleeve is set downward and its two ends are respectively clamped on the lower support part and the upper support part, the U-shaped sleeve is rotatably connected to the lower support part, and the U-shaped sleeve is fixedly connected to the upper support part.

[0008] By adopting the above technical solution, a U-shaped sleeve is used to connect the lower support part and the upper support part, so that the upper support part can be flipped downward and folded or flipped upward and opened relative to the lower support part, and when it is fully opened, the lower support part and the U-shaped sleeve can be abutted and locked.

[0009] Optionally, the upper supporting portion and the lower supporting portion in the left leg and the right leg are both in the shape of a U-shaped frame, and after unfolding, the upper supporting portion and the lower supporting portion in the left leg and the right leg are assembled to form a square frame.

[0010] By adopting the above technical solution, the upper support part and the lower support part are combined to form the left and right legs in a frame shape, which can ensure the overall support stability and the lightness of the leg part.

[0011] Optionally, the left leg and the right leg are further provided with reinforcing connecting rods at the corner positions at the upper and lower ends thereof, and the two ends of the reinforcing connecting rod located at the bottom are respectively fixedly connected to the two ends of the corresponding corners of the lower support part, and the two ends of the reinforcing connecting rod located at the top are respectively fixedly connected to the upper support part and the U-shaped sleeve.

[0012] By adopting the above technical solution, with the help of a reinforcing connecting rod, the shapes of the upper and lower supporting parts in the left and right legs are fixed, so that they are not easily deformed during use, to ensure that the lower supporting part can be smoothly inserted into the U-shaped sleeve for abutment and locking during the opening process.

[0013] Optionally, when the seat is opened, the two front support rods are in an inward-facing O-shape, and the two rear support rods are also in an inward-facing O-shape.

[0014] By adopting the above technical solution and utilizing the inner eight shapes of the front support rod and the rear support rod, a good supporting effect can be maintained during use.

[0015] Optionally, after the seat is opened, the bottom of the front support rod and the rear support rod can be supported on the ground together with the left leg and the right leg.

[0016] By adopting the above technical solution, the front support rod and the rear support rod are utilized so that after the seat is opened, they can be supported on the ground together with the left leg and the right leg, so as to further improve the supporting stability of the entire seat.

[0017] Optionally, rod kits are fixedly installed on both sides of the back of the flexible support body, and rod kits are also fixedly installed on both sides of the front of the flexible support body, and a sleeve is formed in the rod kit for plugging and connecting the front support rod and the rear support rod.

[0018] By adopting the above technical solution and using the rod kit, the flexible support body can be installed on the chair frame in a set manner, which can not only ensure its detachability, but also ensure its support stability after installation, and facilitate the disassembly, cleaning, and replacement of the flexible support body.

[0019] Optionally, two first support belts are provided at the bottom of the flexible support body, the two first support belts are cross-arranged and fixedly connected to the flexible support body, and the front end of the first support belt is directly fixedly connected to the flexible support body, and the rear end of the first support belt is hung on the rear support rod.

[0020] By adopting the above technical solution, when the user sits down during use, part of the gravity is distributed through the first support belt to improve the load-bearing capacity of the entire seat.

[0021] Optionally, a sleeve is mounted and fixed on the rear support rod, and the top end surface of the sleeve forms a stepped surface with the peripheral surface of the rear support rod. The rear end of the first support belt is hung on the rear support rod through a hanging ring, and when in use, the hanging ring is mounted on the rear support rod and supported on the stepped surface.

[0022] By adopting the above technical solution, the sleeve enhances the force on the rear support rod and forms a step height with the rear support rod to provide a first support belt for hanging, ensuring balanced force.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When the seat needs to be folded, lift one side of the seat (it can be the left or right side) to lift the leg on that side off the ground; then hold the two upper support parts with both hands and bend them downwards. At this time, the upper support part is flipped downwards relative to the lower support part, and driven by the front support rod and the rear support rod, the lower support part of the left and right legs and the flexible support body on the chair frame are folded at the same time. The folding method is relatively simple;

[0025] 2. Use a U-shaped sleeve to connect the lower support part and the upper support part, so that the upper support part can be flipped downward or flipped upward relative to the lower support part, and when it is fully opened, the lower support part and the U-shaped sleeve can be abutted and locked;

[0026] 3. With the help of a reinforcing connecting rod, the shapes of the upper and lower supporting parts of the left and right legs are fixed so that they are not easily deformed during use, thereby ensuring that the lower supporting part can be smoothly inserted into the U-shaped sleeve for abutment and locking during the opening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a top view of a folding chair of the present application after being unfolded.

[0028] Figure 2 This is a bottom perspective view of a folding chair of the present application after being unfolded.

[0029] Figure 3 This is a top perspective view of the chair frame portion of a folding chair of the present application after being opened.

[0030] Figure 4 It is a schematic diagram of a front view of a chair frame part of a folding chair in the present application during the folding process.

[0031] Description of reference numerals:

[0032] 1. Left leg; 11. Lower support part; 12. Upper support part; 13. U-shaped sleeve; 2. Right leg; 3. Front support rod; 4. Rear support rod; 5. Reinforcement connecting rod; 6. Bending section; 7. Sleeve; 100. Chair frame; 200. Flexible support body; 201. Rod kit; 202. First support belt; 203. Second support belt; 204. Hanging ring. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-4 This application is described in further detail.

[0034] The embodiment of the present application discloses a folding chair.

[0035] Reference Figure 1 and Figure 2 A folding chair includes a chair frame 100 and a flexible support body 200 installed on the chair frame 100.

[0036] Reference Figure 3 Specifically, the chair frame 100 includes a left leg 1, a right leg 2, a front support rod 3, and a rear support rod 4; wherein the left leg 1 and the right leg 2 are arranged crosswise, and both the left leg 1 and the right leg 2 include a lower support portion 11 and an upper support portion 12, and the intersection between the left leg 1 and the right leg 2 is arranged at the lower support portion 11 of the two. The lower support portion 11 and the upper support portion 12 are hinged by a U-shaped sleeve 13, the opening of the U-shaped sleeve 13 is arranged downward, and its two ends are respectively clamped to the lower support portion 11 and the upper support portion 12, and the U-shaped sleeve 13 is rotatably connected to the lower support portion 11, and the U-shaped sleeve 13 is fixedly connected to the upper support portion 12, so that the upper support portion 12 can be flipped downward and folded relative to the lower support portion 11 or flipped upward and opened, and after it is fully opened, the lower support portion 11 and the U-shaped sleeve 13 can be abutted and locked.

[0037] Reference Figure 1 and Figure 3, the front support rod 3 and the rear support rod 4 are arranged front and back, respectively, wherein there are two front support rods 3, the two front support rods 3 are arranged symmetrically, and the bottom of the left front support rod 3 is rotatably connected to the lower support part 11 of the left leg 1, and the top of the left front support rod 3 is rotatably connected to the upper support part 12 of the right leg 2; the bottom of the right front support rod 3 is rotatably connected to the lower support part 11 of the right leg 2, and the top of the right front support rod 3 is rotatably connected to the upper support part 12 of the left leg 1. Similarly, there are two rear support rods 4, the two rear support rods 4 are arranged symmetrically, and the bottom of the left rear support rod 4 is rotatably connected to the lower support part 11 of the left leg 1, and the top of the left rear support rod 4 is rotatably connected to the upper support part 12 of the right leg 2; the bottom of the right rear support rod 4 is rotatably connected to the lower support part 11 of the right leg 2, and the top of the right rear support rod 4 is rotatably connected to the upper support part 12 of the left leg 1. The flexible support body 200 is installed between the front support rod 3 and the rear support rod 4, and the front and rear sides of the flexible support body 200 are supported and connected to the front support rod 3 and the rear support rod 4 respectively.

[0038] Reference Figure 1 , 3 4. When the seat needs to be folded up, lift one side of the seat (it can be the left or right side) to lift the leg on that side off the ground; then hold the two upper support parts 12 with both hands and bend them downward. At this time, the upper support part 12 is flipped and folded downward relative to the lower support part 11, and driven by the front support rod 3 and the rear support rod 4, the lower support part 11 of the left leg 1, the right leg 2 and the flexible support body 200 on the chair frame 100 are folded up at the same time.

[0039] Reference Figure 3 In this embodiment, the upper support part 12 and the lower support part 11 of the left leg 1 and the right leg 2 are both in the shape of a U-shaped frame. After unfolding, the upper support part 12 and the lower support part 11 of the left leg 1 and the right leg 2 are assembled to form a square frame. The left leg 1 and the right leg 2 are also equipped with reinforcing rods 5 at the corner positions at the upper and lower ends thereof, and the two ends of the reinforcing rod 5 located at the bottom are respectively fixedly connected to the two ends of the corresponding corners of the lower support part 11, and the two ends of the reinforcing rod 5 located at the top are respectively fixedly connected to the upper support part 12 and the U-shaped sleeve 13, so that the shapes of the upper support part 12 and the lower support part 11 of the left leg 1 and the right leg 2 are fixed by means of the reinforcing rod 5, so that they are not easily deformed during use, so as to ensure that the lower support part 11 can be smoothly inserted into the U-shaped sleeve 13 for abutment and locking during the opening process.

[0040] Reference Figure 3In this embodiment, when the seat is opened, the two front support rods 3 are in an inward-facing eight shape, and the two rear support rods 4 are also in an inward-facing eight shape. The bottoms of the front support rods 3 and the rear support rods 4 are extended downward along their rotational connection positions, so that when the seat is opened, the bottoms of the front support rods 3 and the rear support rods 4 can be supported on the ground together with the left support leg 1 and the right support leg 2, so as to further improve the support stability of the entire seat.

[0041] Reference Figure 3 In this embodiment, in the lower support portion 11 of the left leg 1, a curved section 6 is formed from the intersection to the portion connected to the U-shaped sleeve 13, and the curved section 6 approaches the lower support portion 11 of the left leg 1 along the front-to-back direction, so that the two front support rods 3 on the same side can be in a vertical plane, and the two rear support rods 4 on the same side can be in a vertical plane, so that the two front support rods 3 and the two rear support rods 4 are not easily deformed during the use of the seat.

[0042] In other embodiments, the curved section 6 may be disposed on the lower supporting portion 11 of the right leg 2 and moved toward the left leg 1 .

[0043] Reference Figure 1 and Figure 2 Specifically, rod kits 201 are fixedly installed on both sides of the back of the flexible support body 200, and rod kits 201 are also fixedly installed on both sides of the front of the flexible support body 200. A sleeve is formed in the rod kit 201 for the front support rod 3 and the rear support rod 4 to be plugged in and connected, and the connection is fixed by screws after plugging in.

[0044] In this embodiment, two first support belts 202 and a second support belt 203 are fixedly arranged at the bottom of the flexible support body 200. There are two first support belts 202, which are arranged crosswise, and the front end of the first support belt 202 is directly fixedly connected to the flexible support body 200. A sleeve 7 is sleeved on the rear support rod 4, and the sleeve 7 is fixedly arranged at the hinged position between the rear support rod 4 and the upper support part 12, so that the top surface of the sleeve 7 and the peripheral surface of the rear support rod 4 form a stepped surface, and the rear end of the first support belt 202 is hung on the rear support rod 4 through a hanging ring 204, and when in use, the hanging ring 204 is sleeved on the rear support rod 4 and supported on the stepped surface, so that the sleeve 7 can form a step height with the rear support rod 4 while enhancing the force on the rear support rod 4 for the first support belt 202 to be hung, ensuring balanced force. The second support belt 203 is arranged in the front position, and the two ends of the second support belt 203 are respectively fixedly connected to the rod kits 201 on both sides, so as to support the bottom of the flexible support body 200 with the help of the first support belt 202 and the second support belt 203. When in use, when the user sits down, part of the gravity is distributed through the first support belt 202 and the second support belt 203 to improve the load-bearing capacity of the entire seat.

[0045] The implementation principle is: when the seat needs to be folded up, lift one side of the seat (it can be the left or right side) to lift the leg on that side off the ground; then hold the two upper support parts 12 with both hands and bend them downward. At this time, the upper support part 12 is flipped and folded downward relative to the lower support part 11, and driven by the front support rod 3 and the rear support rod 4, the lower support part 11 of the left leg 1, the right leg 2 and the flexible support body 200 on the chair frame 100 are folded up at the same time.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A folding chair, characterized in that: The invention comprises a chair frame (100) and a flexible support body (200) installed on the chair frame (100); the chair frame (100) comprises a left leg (1), a right leg (2), a front support rod (3), and a rear support rod (4); the left leg (1) and the right leg (2) are arranged crosswise; the left leg (1) and the right leg (2) both comprise a lower support portion (11) and an upper support portion (12); and the intersection between the left leg (1) and the right leg (2) is arranged at the lower support portion (11) of the two legs; the upper support portion (12) is hinged to the lower support portion (11), and the upper support portion (12) is hinged to the lower support portion (11). 2) after being flipped upwards and opened relative to the lower support part (11), it can be locked; the front support rod (3) and the rear support rod (4) are arranged front and back respectively, and there are two of the front support rod (3) and the rear support rod (4) and they are arranged left and right, and their tops are hinged to the upper support part (12) on the corresponding side, and their bottoms are hinged to the lower support part (11) on the corresponding side; the flexible support body (200) is installed between the front support rod (3) and the rear support rod (4), and the front and rear sides of the flexible support body (200) are respectively supported and connected to the front support rod (3) and the rear support rod (4).

2. A folding chair according to claim 1, characterized in that: The lower support part (11) and the upper support part (12) are hingedly connected via a U-shaped sleeve (13), and the opening of the U-shaped sleeve (13) is arranged downward and its two ends are respectively clamped on the lower support part (11) and the upper support part (12), the U-shaped sleeve (13) is rotatably connected to the lower support part (11), and the U-shaped sleeve (13) is fixedly connected to the upper support part (12).

3. A folding chair according to claim 2, characterized in that: The upper supporting portion (12) and the lower supporting portion (11) of the left supporting leg (1) and the right supporting leg (2) are both in the shape of a U-shaped frame, and after being unfolded, the upper supporting portion (12) and the lower supporting portion (11) of the left supporting leg (1) and the right supporting leg (2) are assembled to form a square frame.

4. A folding chair according to claim 3, characterized in that: The left supporting leg (1) and the right supporting leg (2) are both provided with reinforcing connecting rods (5) at the corner positions at the upper and lower ends thereof, and the two ends of the reinforcing connecting rod (5) located at the bottom are respectively fixedly connected to the two ends of the corresponding corners of the lower supporting portion (11), and the two ends of the reinforcing connecting rod (5) located at the top are respectively fixedly connected to the upper supporting portion (12) and the U-shaped sleeve (13).

5. A folding chair according to claim 3, characterized in that: When the seat is opened, the two front support rods (3) are in an inward-facing O-shape, and the two rear support rods (4) are also in an inward-facing O-shape.

6. A folding chair according to claim 5, characterized in that: After the seat is opened, the bottoms of the front support rod (3) and the rear support rod (4) can be supported on the ground together with the left supporting leg (1) and the right supporting leg (2).

7. A folding chair according to claim 1, characterized in that: The left and right sides of the back of the flexible support body (200) are both fixedly mounted with rod sets (201), and the left and right sides of the flexible support body (200) are also fixedly mounted with rod sets (201) at the front position, and the rod sets (201) are formed with sleeves for plugging and connecting the front support rod (3) and the rear support rod (4).

8. A folding chair according to claim 7, characterized in that: Two first support belts (202) are arranged at the bottom of the flexible support body (200), the two first support belts (202) are cross-arranged and fixedly connected to the flexible support body (200), and the front end of the first support belt (202) is directly fixedly connected to the flexible support body (200), and the rear end of the first support belt (202) is hung on the rear support rod (4).

9. A folding chair according to claim 8, characterized in that: A sleeve (7) is fixedly mounted on the rear support rod (4), and the top end surface of the sleeve (7) forms a stepped surface with the peripheral surface of the rear support rod (4). The rear end of the first support belt (202) is hung on the rear support rod (4) via a hanging ring (204), and when in use, the hanging ring (204) is mounted on the rear support rod (4) and supported on the stepped surface.

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