Folding chair

Abstract

The utility model discloses a folding chair, which comprises a chair surface and a support frame, the support frame comprises a lower support frame and an upper support frame, the lower support frame and the upper support frame are connected with each other through a first front mounting seat, a second front mounting seat and a rear mounting seat, and the chair surface is arranged on the upper support frame; the lower supporting frame comprises a first lower supporting rod which is mounted on one side below the first front mounting seat; the second lower supporting rod is mounted on one side below the second front mounting seat; the third lower supporting rod and the fourth lower supporting rod are symmetrically arranged and installed on the two sides of the lower portion of the rear installation base respectively. The upper support frame comprises a first upper support rod and a second upper support rod which are respectively mounted on the first front mounting seat and the second front mounting seat; the third upper supporting rod and the fourth upper supporting rod are symmetrically installed on the two sides of the upper portion of the rear installation base.

Description

Technical Field

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

[0002] Chairs, such as moon chairs (also known as space chairs), are frequently used in daily furniture, outdoor camping, picnics and other scenarios. To facilitate carrying or storage, the emergence of foldable chairs is necessary.

[0003] The main support structure of the existing space chair adopts a quadrilateral structure, and the structures are connected together by spring ropes and the folding is controlled by elasticity; its stability is poor, and when folding, manual effort is required to overcome the elasticity for folding, which is rather laborious and inconvenient to use.

[0004] Based on this, there is a foldable chair proposed in, for example, the publication number CN215347878U. The overall folding support frame is in a triangular structure, and the structural members are fixed or hinged by rivets, with more stable support, and only by pushing the C-shaped body can the folding be completed, without effort and convenient to use.

[0005] The purpose of this application is to provide a new folding and closing method for such a triangular chair frame support structure.

[0006] The above content is only used to assist in understanding the technical solution of this application, and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention

[0007] Based on this, this application provides a folding chair.

[0008] The technical solution adopted by this application to solve its technical problems is: a folding chair, including: a seat surface and a support frame. The support frame includes a lower support frame and an upper support frame, which are connected to each other through a first front mounting seat, a second front mounting seat, and a rear mounting seat. The seat surface is arranged on the upper support frame; the lower support frame includes: a first lower support rod, installed on one side below the first front mounting seat; a second lower support rod, installed on one side below the second front mounting seat; a third lower support rod and a fourth lower support rod, which are symmetrically arranged and installed on both sides below the rear mounting seat respectively; the upper support frame includes: a first upper support rod and a second upper support rod, installed on the first front mounting seat and the second front mounting seat respectively; a third upper support rod and a fourth upper support rod, symmetrically installed on both sides above the rear mounting seat; a first cross bar and a second cross bar are rotatably mounted on the rear mounting seat. One end of the first cross bar is connected to the first front mounting seat, and one end of the second cross bar is connected to the second front mounting seat; further includes: a sliding mounting seat, sliding on the first cross bar; a third cross bar, with both ends rotatably mounted on the sliding mounting seat and the second front mounting seat respectively; by sliding the sliding mounting seat to both ends of the first cross bar and rotating the third cross bar, the first front mounting seat and the second front mounting seat can be made to approach or separate from each other, thereby realizing a semi-folded or unfolded state.

[0009] In some embodiments, locking holes are provided at both ends of the first cross bar, and a locking mechanism is provided on the sliding mounting seat. The sliding mounting seat can be locked by the cooperation of the locking mechanism and the locking holes.

[0010] In some embodiments, the locking mechanism includes a button, and the sliding mounting seat can be locked or unlocked through the button.

[0011] In some embodiments, a first rotating portion is formed on the sliding mounting seat, and a second rotating portion is formed on the second front mounting seat. One end of the third cross bar is rotatably mounted on the first rotating portion, and the other end is rotatably mounted on the second rotating portion.

[0012] In some embodiments, the third cross bar can only rotate in one direction on one side of the first rotating portion and the second rotating portion. The first rotating portion only allows the third cross bar to rotate towards the first mounting seat, and the second rotating portion allows the rotation direction to be opposite.

[0013] In some embodiments, the first rotating portion and the locking mechanism are respectively arranged on both sides in the same plane of the sliding mounting seat.

[0014] In some embodiments, two sets of inclined plugging units are formed on both sides of the rear mounting seat. The plugging unit includes two plugging holes, one inclined downward and one inclined upward.

[0015] In some embodiments, a reinforcing rib for reinforcement is provided between the two groups of the plug-in units, and a rotating mounting portion is further formed on the rear mounting seat. The rotating mounting portion is divided into two rotating mounting areas by a partition, and the two rotating mounting areas are respectively used for rotatably connecting the first cross bar and the second cross bar.

[0016] In some embodiments, the upper support frame and the lower support frame are detachably plugged on the first front mounting seat, the second front mounting seat and the rear mounting seat. On the basis of folding the third cross bar, removing the upper support frame and the lower support frame can achieve a fully folded state.

[0017] The beneficial effects of the present application are as follows: By sliding the sliding mounting seat on the first cross bar to drive the third cross bar to rotate, and at the same time rotating the first cross bar and the second cross bar closer to each other, the folding of the chair can be achieved. In addition, by removing the upper support frame and the lower support frame, the chair can be completely disassembled and folded. The operation is simple, greatly reducing the space occupied and facilitating storage and transportation. At the same time, a locking mechanism is provided on the sliding mounting seat, which can be self-locked at a specific position in the folded or unfolded state, and the structure is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0019] Figure 1 is a three-dimensional schematic diagram of the present application.

[0020] Figure 2 is a schematic diagram of the support frame of the present application.

[0021] Figure 3 is a schematic diagram of the semi-folded state of the present application.

[0022] Explanation of the reference numerals in the drawings: 1, seat surface; 2, lower support frame; 201, first lower support rod; 202, second lower support rod; 203, third lower support rod; 204, fourth lower support rod; 3, upper support frame; 301, first upper support rod; 302, second upper support rod; 303, third upper support rod; 304, fourth upper support rod; 4, first front mounting seat; 5, second front mounting seat; 501, second rotating portion; 6, rear mounting seat; 601, plug-in unit; 602, rotating mounting portion; 7, first cross bar; 8, second cross bar; 9, third cross bar; 10, sliding mounting seat; 1001, first rotating portion; 1002, button; 11, locking hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection of the present application.

[0024] In the embodiments of the present application, please refer to Figures 1-3 As shown, a folding chair mainly includes: a seat surface 1 and a support frame. The support frame includes a lower support frame 2 and an upper support frame 3, which are connected to each other through a first front mounting seat 4, a second front mounting seat 5, and a rear mounting seat 6. The seat surface 1 is disposed on the upper support frame 3. The lower support frame 2 includes: a first lower support rod 201, mounted on one side below the first front mounting seat 4; a second lower support rod 202, mounted on one side below the second front mounting seat 5; a third lower support rod 203 and a fourth lower support rod 204, symmetrically arranged and respectively mounted on both sides below the rear mounting seat 6. The upper support frame 3 includes: a first upper support rod 301 and a second upper support rod 302, respectively mounted on the first front mounting seat 4 and the second front mounting seat 5; a third upper support rod 303 and a fourth upper support rod 304, symmetrically mounted on both sides above the rear mounting seat 6. A first cross bar 7 and a second cross bar 8 are rotatably mounted on the rear mounting seat 6. One end of the first cross bar 7 is connected to the first front mounting seat 4, and one end of the second cross bar 8 is connected to the second front mounting seat 5. It further includes: a sliding mounting seat 10, sliding on the first cross bar 7; a third cross bar 9, with both ends rotatably connected to the sliding mounting seat 10 and the second front mounting seat 5 respectively. By sliding the sliding mounting seat 10 to both ends of the first cross bar 7 and rotating the third cross bar 9, the first front mounting seat 4 and the second front mounting seat 5 can be made to approach or separate, and a semi-folded or unfolded state can be achieved.

[0025] Next, some preferred / improved embodiments based on the above embodiments will be further elaborated. Any one or a combination of multiple of the following embodiments can be selected.

[0026] As Figure 2As shown, as an embodiment, locking holes 11 are provided at both ends of the first crossbar 7, and a locking mechanism is provided on the sliding mounting seat 10. The sliding mounting seat 10 can be locked by the cooperation of the locking mechanism and the locking holes 11. The locking mechanism includes a button 1002, and the button 1002 is connected to a self-locking pin. Pressing the button 1002 can make the self-locking pin cooperate with the locking hole 11 to achieve locking, and the sliding mounting seat 10 can be locked or unlocked through the button 1002.

[0027] In some embodiments, one or both ends of the first crossbar 7 have locking blocks, and the locking mechanism is equipped with a self-locking plug, and the self-locking of the sliding mounting seat 10 sliding to a specific position can be achieved through the locking mechanism.

[0028] Further, a first rotating portion 1001 is formed on the sliding mounting seat 10, and a second rotating portion 501 is formed on the second front mounting seat 5. One end of the third crossbar 9 rotates on the first rotating portion 1001, and the other end rotates on the second rotating portion 501. When the sliding mounting seat 10 is on the first crossbar 7, the third crossbar rotating on the first rotating portion 1001 deflects synchronously.

[0029] Specifically, the third crossbar 9 can only rotate in one side direction of the first rotating portion 1001 and the second rotating portion 501. The first rotating portion 1001 only allows the third crossbar 9 to rotate towards the first mounting seat direction, and the second rotating portion 501 allows the rotation direction to be opposite, which not only ensures the deformation of the overall frame caused by the rotation of the third crossbar 9 in the unfolded state, but also ensures that the third crossbar 9 can only rotate in a specific direction.

[0030] Further, the first rotating portion 1001 and the locking mechanism are respectively arranged on both sides in the same plane of the sliding mounting seat 10, and are both arranged horizontally.

[0031] As Figure 3 As shown, two sets of inclined plugging units 601 are formed on both sides of the rear mounting seat 6. The plugging unit 601 includes two plugging holes, one inclined downward and one inclined upward. Plugging units 601 are provided on both the first front mounting seat 4 and the second front mounting seat 5. The inclined plugging holes expand the supporting area of the lower support frame 2 and the upper support frame 3.

[0032] Specifically, a reinforcing rib for reinforcement is provided between the two sets of the plug-in units 601. A rotating mounting portion 602 is further formed on the rear mounting seat 6. The rotating mounting portion 602 is divided into two rotating mounting areas by a partition. The two rotating mounting areas are respectively used for rotatably connecting the first cross bar 7 and the second cross bar 8. After deflecting the third cross bar 9, the first cross bar 7 and the second cross bar 8 can rotate within the rotating mounting portion 602, and bringing the first cross bar 7 and the second cross bar 8 closer can achieve the folding function.

[0033] Further, the upper support frame 3 and the lower support frame 2 are both detachably plugged on the first front mounting seat 4, the second front mounting seat 5 and the rear mounting seat 6. Based on folding the third cross bar 9, detaching the upper support frame 3 and the lower support frame 2 can achieve a fully folded state.

[0034] So far, various embodiments of the present application have been described in detail. To avoid obscuring the concept of the present application, some details well known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present application. The foregoing embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A folding chair, comprising a seat surface and a support frame, characterized in that: The support frame includes a lower support frame and an upper support frame, which are connected to each other through a first front mounting seat, a second front mounting seat and a rear mounting seat, and the seat surface is arranged on the upper support frame; The lower support frame includes: A first lower support rod, installed on one side below the first front mounting seat; A second lower support rod, installed on one side below the second front mounting seat; A third lower support rod and a fourth lower support rod, symmetrically arranged and respectively installed on both sides below the rear mounting seat; The upper support frame includes: A first upper support rod and a second upper support rod, respectively installed on the first front mounting seat and the second front mounting seat; A third upper support rod and a fourth upper support rod, symmetrically installed on both sides above the rear mounting seat; A first cross bar and a second cross bar are rotatably mounted on the rear mounting seat, one end of the first cross bar is connected to the first front mounting seat, and one end of the second cross bar is connected to the second front mounting seat; It further includes: A sliding mounting seat, sliding on the first cross bar; A third cross bar, with both ends rotatably connected to the sliding mounting seat and the second front mounting seat respectively; By sliding the sliding mounting seat to both ends of the first cross bar and rotating the third cross bar, the first front mounting seat and the second front mounting seat can be made to approach or separate from each other, thereby realizing a semi-folded or unfolded state.

2. The folding chair according to claim 1, wherein Locking holes are provided at both ends of the first cross bar, and a locking mechanism is provided on the sliding mounting seat. The sliding mounting seat can be locked by the cooperation of the locking mechanism and the locking holes.

3. The folding chair according to claim 2, characterized in that, The locking mechanism includes a button, and the sliding mounting seat can be locked or unlocked through the button.

4. A folding chair according to claim 2, characterized in that, A first rotating part is formed on the sliding mounting seat, and a second rotating part is formed on the second front mounting seat. One end of the third cross bar is rotatably connected to the first rotating part, and the other end is rotatably connected to the second rotating part.

5. A folding chair according to claim 4, wherein, The third cross bar can only rotate in one side direction of the first rotating part and the second rotating part. The first rotating part only allows the third cross bar to rotate towards the first mounting seat, and the second rotating part allows the rotation direction to be opposite.

6. A folding chair according to claim 5, characterized in that, The first rotating part and the locking mechanism are respectively arranged on both sides in the same plane of the sliding mounting seat.

7. A folding chair according to claim 1, characterized in that, Two groups of inclined plugging units are formed on both sides of the rear mounting seat. The plugging unit includes two plugging holes, one inclined downward and one inclined upward.

8. A folding chair according to claim 7, characterized in that, Reinforcing ribs for reinforcement are arranged between the two groups of plugging units. A rotating mounting part is further formed on the rear mounting seat. The rotating mounting part is divided into two rotating mounting areas by a partition board, and the two rotating mounting areas are respectively used for rotatably connecting the first cross bar and the second cross bar.

9. A folding chair according to claim 1, characterized in that, The upper support frame and the lower support frame can be detachably plugged into the first front mounting seat, the second front mounting seat and the rear mounting seat. On the basis of folding the third cross bar, removing the upper support frame and the lower support frame can realize a fully folded state.

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