A folding chair

Abstract

The utility model provides a folding chair, especially relate to a folding chair which realizes stability and space utilization rate promotion through optimization structure design, it includes support foot, first rod piece, second rod piece, guide bush, fixed sleeve, bending part and connecting rod etc.

Description

Technical Field

[0001] This utility model relates to a folding chair. Background Technology

[0002] Folding chairs, as a type of portable furniture, are widely used in homes, outdoor activities, and offices. Their initial design purpose was to achieve convenient storage and transportation within limited spaces, while meeting the functional needs of temporary or long-term use. However, existing folding chairs still have many shortcomings in structural design and user experience. Traditional folding chairs typically use simple hinge structures to achieve folding functionality. While they can complete basic unfolding and folding operations, they often exhibit insufficient stability in actual use. In particular, in the design of existing folding chairs, the support legs mostly use telescopic rod structures. This design can effectively reduce the space occupied when unfolded, but when folded, because the telescopic rods are in a straightened state, the overall height of the folding chair increases significantly, thus increasing the space required for storage. Furthermore, in the unfolded state, some structures of existing folding chairs may cause inconvenience to the user; for example, some parts may press against the user's legs or buttocks, affecting comfort. Summary of the Invention

[0003] This utility model discloses a folding chair, which aims to solve the problems mentioned above.

[0004] The present invention adopts the following solution:

[0005] A folding chair includes two sets of folding components disposed on the front and rear sides of the folding chair; each folding component includes: a support leg disposed on both sides of the folding component; a first rod, the lower part of which is configured to connect with the lower part of the support leg, the first rod having a guide sleeve configured to move along the first rod, and the first rod also having a limiting structure that cooperates with the guide sleeve; and a second rod, the upper part of which is configured to hinge to the upper part of the support leg, and the lower part of which is configured to hinge to the guide sleeve.

[0006] In this embodiment of the utility model, a fixed sleeve that can form a limiting structure is fixedly configured on the upper end of the first rod. When the folding chair is in the unfolded state, the guide sleeve can abut against and cooperate with the fixed sleeve.

[0007] In this embodiment of the utility model, an abutting portion extends outward from the fixing sleeve, and when the folding chair is in the unfolded state, the abutting portion is configured to abut against the second rod.

[0008] In this embodiment of the present invention, when the folding chair is in the unfolded state, the abutting part is located below the hinge joint between the second rod and the guide sleeve.

[0009] In this embodiment of the utility model, a first bending portion is provided at one end of the first rod located in the middle of the folding chair, and the first bending portions of the two first rods located on the front or rear side are hinged together.

[0010] In this embodiment of the utility model, a second bending portion is provided at one end of the second rod located in the middle of the folding chair, and the second bending portions of the two second rods located on the front or rear side are hinged together.

[0011] In this embodiment of the utility model, a support pad is disposed below the support foot, and the lower end of the first rod is configured to be hinged to the support pad; a first connecting rod is disposed between the two first rods located on the same side, and the guide sleeve is configured to slide on the first rod between the fixed sleeve and the first connecting rod.

[0012] In this embodiment of the utility model, a connector is provided on the other end of the second rod located on the outside of the folding chair, and a second connecting rod is provided between the two connectors located on the same side.

[0013] In this embodiment of the utility model, two armrest supports are also located on both sides of the folding chair. The two ends of the armrest supports are respectively hinged to the connecting parts so that the armrest supports can be flipped up and down relative to the folding assembly.

[0014] In this embodiment of the invention, a backrest support is also included, which is configured to be hinged to the rear side of the armrest support.

[0015] This utility model provides a folding chair, which has the following beneficial effects:

[0016] First, the design of the first and second bends significantly reduces the height of the folded chair. Specifically, the hinge points of the first and second bends allow the chair to compress its overall height to below the top of the second rod during folding, thus reducing storage space requirements. Second, the configuration of the fixing sleeve and the abutment effectively enhances the stability of the folding chair in its unfolded state. The abutment applies downward support to the second rod, preventing the chair from wobbling or tipping during use. Third, the design of the armrest and backrest supports improves user comfort while preventing interference from the unfolded structure. The hinged connection between the armrest and the connector allows the armrest to rotate up and down within a certain range, while the hinged connection between the backrest and the armrest allows the backrest to be adjusted according to the user's needs. Finally, the coordinated action of the guide sleeve, the first link, and the second link ensures smooth operation during both unfolding and folding. The guide sleeve moves along the first rod, causing the second rod to move synchronously. The first and second connecting rods limit the relative range of motion between the components, ensuring the stability of the folding chair during operation and reducing the use of telescopic tubes. This effectively reduces the height of the folding chair after it is folded, minimizing the space it occupies. At the same time, the configuration of the bending part ensures that the folding chair meets the required size requirements after it is unfolded, while ensuring that the height after folding is lower than the top of the second rod and that it does not hit the user's buttocks when unfolded. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the fully unfolded state in an embodiment of this utility model.

[0019] Figure 2 This is a perspective view of the fully unfolded embodiment of this utility model.

[0020] Figure 3 This is a schematic diagram of the folded state in an embodiment of this utility model. Figure 1 .

[0021] Figure 4 This is a schematic diagram of the folded state in an embodiment of this utility model. Figure 2 .

[0022] Figure 5This is a schematic diagram of the fully folded state in an embodiment of this utility model.

[0023] 1. Support foot; 2. First rod; 3. Second rod; 4. Fixing sleeve; 5. Guide sleeve; 6. First bend; 7. Second bend; 8. Support pad; 9. First connecting rod; 10. Connecting piece; 11. Second connecting rod; 12. Armrest bracket; 13. Backrest bracket; 14. Abutment part. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments.

[0025] Referring to the accompanying drawings, this utility model provides a folding chair that achieves structural stability in the unfolded state and a reduced height when folded through the coordinated action of multiple components.

[0026] The folding chair comprises two sets of folding components located on its front and rear sides. Each set of folding components includes a support leg 1, a first rod 2, a second rod 3, a fixing sleeve 4, a guide sleeve 5, a first bend 6, a second bend 7, a support pad 8, a first connecting rod 9, a connector 10, a second connecting rod 11, an armrest bracket 12, and a backrest bracket 13. These components, through specific connections, quantities, and modes of movement, collectively constitute a fully functional folding chair. The support leg 1, first rod 2, and second rod 3 each have four components.

[0027] The support leg 1 is a straight rod structure, positioned on both sides of the folding assembly, with a support pad 8 at the bottom. The support pad 8 not only improves the overall stability of the folding chair when unfolded, but also prevents slippage, damage, or harsh noise that could occur if the support leg 1 directly contacts the ground, while also providing anti-slip properties. The upper part of the support leg 1 is hinged to the second rod 3, specifically below the upper end of the second rod, while the lower part connects to the first rod 2, not at the very bottom. This design, with both the upper and lower ends connected to other components, allows the support leg 1 to play a crucial supporting and guiding role during the unfolding and folding of the chair.

[0028] The first rod 2 is located inside the support leg 1, with its lower end hinged to the support pad 8, and its upper end fixedly fitted with a fixing sleeve 4 forming a limiting structure. The fixing sleeve 4 extends outward to form an abutment portion 14, which abuts against the second rod 3 when the folding chair is in the unfolded state, and is located below the hinge point between the second rod 3 and the guide sleeve 5. Through this design, the abutment portion 14 applies a downward supporting force to the second rod 3, thereby effectively enhancing the structural stability of the folding chair in the unfolded state. In addition, the fixing sleeve 4, together with the first connecting rod 9, constitutes a movement range limiting structure for the guide sleeve 5, ensuring that the guide sleeve 5 can only slide within the first rod 2 section between the fixing sleeve 4 and the first connecting rod 9.

[0029] A guide sleeve 5 is mounted on the first rod 2 and hinged to the second rod 3. When the folding chair switches from the folded state to the unfolded state, the guide sleeve 5 slides upward along the first rod 2, causing the second rod 3 to move synchronously until the guide sleeve 5 abuts against the fixed sleeve 4. At this time, the folding chair enters the fully unfolded state, and the position of the guide sleeve 5 is locked, thereby fixing the relative positions of the first rod 2 and the second rod 3. Conversely, during the folding process, the guide sleeve 5 slides downward along the first rod 2, causing the second rod 3 to rotate downward until the folding chair enters the fully folded state. This invention transforms the hinged relationship between the first and second rods into a movable one, which, compared to the fixed type, eliminates the need for telescopic rods for the support legs, effectively reducing the height after folding.

[0030] The first bending portion 6 and the second bending portion 7 are respectively disposed at one end of the first rod 2 and the second rod 3 located in the middle of the folding chair. The first bending portions 6 of the two first rods 2 on the front or rear side are hinged together, and the second bending portions 7 of the two second rods 3 on the front or rear side are also hinged together. The design of the first bending portions 6 and the second bending portions 7 allows the folding chair to compress its overall height to below the height of the upper end of the second rod 3 during the folding process by rotating the bending portions. Specifically, the hinge position of the two first bending portions 6 is located slightly below the upper end of the second rod 3 (or the second connecting rod), which allows the folding chair to make full use of the rotation space of the bending portions when folding, significantly reducing the height after folding. At the same time, because a fabric support area is formed between the two second connecting rods to support the user's buttocks, it can prevent the fabric from pressing against the user's buttocks.

[0031] The first link 9 is positioned between the two first rods 2 on the same side, with its two ends hinged to the lower ends of the two first rods 2 respectively. The first link 9 not only enhances the overall rigidity and linkage of the folding chair, but also ensures the stability of the folding chair during unfolding and folding by limiting the relative range of motion between the first rods 2. Furthermore, the first link 9, together with the fixed sleeve 4, constitutes the movement range limiting structure of the guide sleeve 5, further improving the smoothness of the folding chair's operation.

[0032] Connector 10 is positioned on the other end of the second rod 3 located on the outer side of the folding chair, and a second connecting rod 11 is positioned between the two connectors 10 on the same side. Armrest supports 12 are positioned on both sides of the folding chair, with their ends hinged to connectors 10 respectively. Armrest supports 12 can be flipped up and down relative to the folding assembly to meet the needs of different users. Backrest supports 13 are configured to hinge to the rear side of armrest supports 12, further enhancing user comfort. Fabric is provided between the two backrest supports to form a backrest.

[0033] In actual use, the operation process of the folding chair is as follows: S1, take the folding chair out of the folded state, hold the support leg 1 with both hands and pull it outward, so that the guide sleeve 5 slides upward along the first rod 2; S2, as the guide sleeve 5 slides; S3, when the guide sleeve 5 abuts against the fixed sleeve 4, the folding chair enters the fully unfolded state. At this time, the abutting part 14 applies a downward supporting force to the second rod 3 to ensure the stability of the folding chair in the unfolded state; S4, adjust the angle of the armrest bracket 12 and the backrest bracket 13 as needed to improve the user's comfort; S5, when it is necessary to fold, hold the support leg 1 with both hands and push it inward, so that the guide sleeve 5 slides downward along the first rod 2; S6, as the guide sleeve 5 slides, the second rod 3 gradually rotates to a position close to parallel with the first rod 2; S7, when the guide sleeve 5 slides to the vicinity of the first connecting rod 9, the folding chair enters the fully folded state. At this time, the rotation of the first bending part 6 and the second bending part 7 significantly reduces the overall height of the folding chair.

[0034] Through the above technical solution, this utility model solves the technical problems of insufficient stability and large space occupation when folded in existing folding chairs. Specifically, the design of the first bending part 6 significantly reduces the height of the middle part of the folding chair when folded. The movable structure at the hinge of the first and second rods further reduces the folded height. The configuration of the fixing sleeve 4 and the abutment part 14 enhances the stability of the folding chair in the unfolded state. The design of the armrest support 12 and backrest support 13 improves user comfort. The synergistic effect of the guide sleeve 5, the first connecting rod 9, and the second connecting rod 11 ensures smooth operation and structural stability during unfolding and folding. In summary, this utility model achieves a comprehensive improvement in technical performance by optimizing the structural design of the folding chair, demonstrating significant technological progress and practical value.

[0035] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A folding chair comprising two sets of folding components arranged on the front and back sides of the folding chair; characterized in that, The folding assembly includes: Support feet are configured on both sides of the folding assembly; The first rod is configured to connect to the lower part of the support foot. A guide sleeve is configured to move along the first rod. The first rod is also configured with a limiting structure that cooperates with the guide sleeve. The second member has an upper part configured to hinge to the upper part of the support foot, and a lower part configured to hinge to the guide sleeve.

2. A folding chair according to claim 1, characterized in that The upper end of the first rod is fixedly equipped with a fixed sleeve that can form a limiting structure. When the folding chair is in the unfolded state, the guide sleeve can abut against the fixed sleeve.

3. A folding chair according to claim 2, wherein, The fixed sleeve extends outward to form an abutment portion, which is configured to abut against the second rod when the folding chair is in the unfolded state.

4. A folding chair according to claim 3, wherein When the folding chair is in the unfolded state, the abutting part is located below the hinge point between the second rod and the guide sleeve.

5. A folding chair according to any one of claims 2-4, c h a r a c t e r i s e d in that The first rod located in the middle of the folding chair has a first bend at one end, and the first bends of the two first rods located on the front or rear side are hinged together.

6. A folding chair according to claim 5, wherein, The second rod located in the middle of the folding chair has a second bend at one end, and the second bends of the two second rods located on the front or rear side are hinged together.

7. A folding chair according to claim 6, wherein A support pad is disposed below the support foot, and the lower end of the first rod is configured to be hinged to the support pad; a first connecting rod is disposed between the two first rods located on the same side, and the guide sleeve is configured to slide on the first rod between the fixed sleeve and the first connecting rod.

8. A folding chair according to claim 7, wherein, A connector is provided on the other end of the second rod located on the outside of the folding chair, and a second connecting rod is provided between the two connectors located on the same side.

9. A folding chair according to claim 8, wherein, It also includes two armrest supports located on both sides of the folding chair. The two ends of the armrest supports are respectively hinged to the connectors so that the armrest supports can be flipped up and down relative to the folding assembly.

10. A folding chair according to claim 9, wherein, It also includes a backrest support, which is configured to hinge to the rear side of the armrest support.

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