A portable chair frame that can be quickly folded for storage

Abstract

The utility model relates to chair frame technical field, and disclose a portable chair frame of quick folding storage, include: first frame, second frame and antiskid support leg, second frame hinged connection is in the inner wall of first frame, antiskid support leg is fixed respectively in the lower extreme of first frame and second frame and welds, still include: folding subassembly, fixed component and adjusting component, folding subassembly sets up in the inboard of second frame, fixed component sets up in the upper extreme of first frame, second frame, adjusting component sets up in the top of fixed component, the utility model discloses through manual pulling the pull plate on the limiting piece, makes the limiting rod and the limiting hole separation, removes the fixed of first frame and second frame, like this can reverse rotation first frame and second frame, and then make first frame and second frame fold, and first seat board and second seat board are far from each other, and then guarantee the normal folding storage of the frame, and it is convenient to carry.

Description

Technical Field

[0001] This utility model relates to the field of chair frame technology, specifically a portable chair frame that can be quickly folded and stored. Background Technology

[0002] The chair frame is the core skeleton supporting the overall structure of the chair, typically composed of chair legs, crossbars, and supporting components, responsible for bearing the weight of the chair body and ensuring stability. The frame usually includes chair legs (upright posts supporting the ground), side panels (lateral components connecting the chair legs), braces (diagonal or longitudinal bars for enhanced stability), and supports for fixing the seat and backrest. For example, solid wood chair frames use mortise and tenon joints to connect the uprights, headrests, and crossbars to form a three-dimensional frame, while metal frames are mostly assembled using welding or bolts.

[0003] In the prior art, such as the chair frame structure disclosed in publication number CN215686064U, there is a seat, a backrest, and π-shaped armrests. The lower part of the armrests is a support leg. The armrest includes two legs, front and rear, a first crossbar as a handhold located on the upper part of the legs, and a second crossbar located in the middle of the two legs. The two sides of the seat are fixedly connected by several screws and the second crossbar. The backrest is fixedly connected to the first crossbar by at least one screw. The bottom of the backrest and the seat are detachably locked together. During assembly and disassembly, the armrests and backrest, and the armrests and seat are all connected by screws, and the backrest and seat are detachably locked together.

[0004] Existing chairs are connected by screw fasteners, and the backrest and seat are locked together in a detachable manner. However, they cannot be folded and stored during use. The non-folding design cannot be stacked or folded up, which means that more space is needed in the trunk and shelf of the vehicle during transportation, increasing transportation costs. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technologies mentioned above cannot be folded for storage during use, and that non-foldable designs cannot be stacked or folded up, resulting in the need to occupy more space in the vehicle's trunk and shelf during transportation, thereby increasing transportation costs.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A portable chair frame that can be quickly folded and stored includes: a first frame, a second frame, and anti-slip support legs; the second frame is hinged to the inner wall of the first frame, and the anti-slip support legs are welded and fixed to the lower ends of the first frame and the second frame respectively, and further includes: The folding component, the fixing component, and the adjusting component are provided; the folding component is disposed inside the second frame, the fixing component is disposed at the upper end of the first frame and the second frame, and the adjusting component is disposed above the fixing component.

[0008] As a further embodiment of this utility model: the folding assembly includes: a limiting member, a pull plate, a limiting rod, a limiting hole, a reinforcing rod, a return spring, and a fixing block. The limiting member is fixed to the inner side of the second frame, and the limiting member has an internal telescopic connection to the limiting rod.

[0009] As a further improvement of this utility model: one end of the limiting rod is welded and fixed with a pull plate, and the other end of the limiting rod is inserted and connected to a limiting hole opened in the inner wall of the first frame.

[0010] As a further improvement of this utility model: a reinforcing rod is fixed inside the first frame, and the reinforcing rod is rotatably connected to the second frame.

[0011] As a further embodiment of this utility model: two fixing blocks are symmetrically fixed on the outer surface of the limiting rod, and the side walls of the two fixing blocks are abutted against and connected to the limiting member by a return spring.

[0012] As a further embodiment of this utility model: the fixing component includes: a hinge, a connecting plate and a fixing bolt, wherein the hinge is provided in two sets, and the two sets of hinges are respectively hinged to the upper ends of the first frame and the second frame.

[0013] As a further improvement of this utility model: a connecting plate is fixed to the upper surface of both sets of hinge members, and two fixing bolts are installed inside the connecting plate.

[0014] As a further embodiment of this utility model: the adjustment assembly includes: a first seat plate, a movable plate, and a second seat plate. The first seat plate is connected to the upper surface of a set of hinges. A movable plate is fixed to one side of the first seat plate. The end of the movable plate is telescopically connected to a second seat plate that is fixedly connected to another set of hinges.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model allows the limiting rod to separate from the limiting hole by manually pulling the pull plate on the limiting component, thereby releasing the fixation of the first frame and the second frame. This enables the first frame and the second frame to rotate in the opposite direction, thereby folding the first frame and the second frame and moving the first seat plate and the second seat plate away from each other, thus ensuring the normal folding and storage of the frame and making it easy to carry.

[0016] 2. This utility model uses the elasticity of the return spring to push the limit rod to return to its original position, so that the end of the limit rod is inserted into the limit hole in the first frame, thereby fixing the first frame and the second frame. The user can sit on the seat for use. The anti-slip support legs set at the bottom of the first frame and the second frame can play an auxiliary support and anti-slip role. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a portable chair frame that can be quickly folded and stored. Figure 2 A schematic diagram of the cross-sectional structure of a limiting component in a portable chair frame that can be quickly folded and stored; Figure 3 This is a schematic diagram of the folding structure of a portable chair frame that can be quickly folded and stored. Figure 4 A schematic diagram of the three-dimensional structure of the hinge in a portable chair frame that can be quickly folded and stored. Figure 5 This is a schematic diagram of the three-dimensional structure of the first seat in a portable chair frame that can be quickly folded and stored.

[0018] In the diagram: 1. First frame; 2. Second frame; 3. Anti-slip support leg; 4. Limiting component; 41. Pull plate; 42. Limiting rod; 43. Limiting hole; 44. Reinforcing rod; 45. Return spring; 46. Fixing block; 5. Hinge; 51. Connecting plate; 52. Fixing bolt; 6. First seat plate; 61. Movable plate; 62. Second seat plate. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0022] Example 1: Please see Figure 1 - Figure 5 This is the first embodiment of the present utility model.

[0023] This embodiment provides a portable chair frame that can be quickly folded and stored, including: a first frame 1, a second frame 2, and anti-slip support legs 3; the second frame 2 is hinged to the inner wall of the first frame 1, and the anti-slip support legs 3 are welded and fixed to the lower ends of the first frame 1 and the second frame 2 respectively, and also includes: The folding component, the fixing component, and the adjusting component are provided. The folding component is located inside the second frame 2, the fixing component is located at the upper end of the first frame 1 and the second frame 2, and the adjusting component is located above the fixing component.

[0024] Specifically, the folding assembly includes: a limiting member 4, a pull plate 41, a limiting rod 42, a limiting hole 43, a reinforcing rod 44, a return spring 45, and a fixing block 46. The limiting member 4 is fixed to the inner side of the second frame 2, and the limiting rod 42 is telescopically connected inside the limiting member 4.

[0025] Furthermore, under the elastic force of the return spring 45, the limiting rod 42 will be pushed to return to its original position, so that the end of the limiting rod 42 is inserted into the limiting hole 43 in the first frame 1, thereby fixing the first frame 1 and the second frame 2, and the user can sit on the seat for use.

[0026] Specifically, a pull plate 41 is welded and fixed to one end of the limiting rod 42, and the other end of the limiting rod 42 is inserted into a limiting hole 43 opened in the inner wall of the first frame 1; a reinforcing rod 44 is fixed inside the first frame 1, and the reinforcing rod 44 is rotatably connected to the second frame 2. Two fixing blocks 46 are symmetrically fixed to the outer surface of the limiting rod 42, and the side walls of the two fixing blocks 46 abut against a return spring 45 that abuts against and connects with the limiting member 4.

[0027] Furthermore, manually pull the pull plate 41 on the limiting member 4 to separate the limiting rod 42 from the limiting hole 43, thereby releasing the fixation of the first frame 1 and the second frame 2. This allows the first frame 1 and the second frame 2 to rotate in the opposite direction, thereby folding the first frame 1 and the second frame 2.

[0028] In use, after the first frame 1 and the second frame 2 have rotated to their positions, the elasticity of the return spring 45 will push the limiting rod 42 to return to its original position, causing the end of the limiting rod 42 to insert into the limiting hole 43 inside the first frame 1, thereby fixing the first frame 1 and the second frame 2. The user can then sit on the seat. The anti-slip support legs 3 at the bottom of the first frame 1 and the second frame 2 provide auxiliary support and prevent slipping. When folding, the pull plate 41 on the limiting member 4 can be manually pulled to separate the limiting rod 42 from the limiting hole 43, releasing the fixation of the first frame 1 and the second frame 2. This allows the first frame 1 and the second frame 2 to rotate in the opposite direction, folding them together, and moving the first seat 6 and the second seat 62 away from each other, ensuring proper folding and storage of the frame for easy carrying.

[0029] In summary, when using this portable chair frame that can be quickly folded and stored, manually pulling the pull plate 41 on the limiting member 4 separates the limiting rod 42 from the limiting hole 43, releasing the fixation of the first frame 1 and the second frame 2. This allows the first frame 1 and the second frame 2 to rotate in the opposite direction, thereby folding the first frame 1 and the second frame 2, and moving the first seat 6 and the second seat 62 away from each other, thus ensuring the normal folding and storage of the frame and making it easy to carry.

[0030] Example 2: Please see Figure 1 - Figure 5 This is the second embodiment of the present utility model.

[0031] Specifically, the fixing components include: hinge 5, connecting plate 51, and fixing bolts 52. There are two sets of hinge 5, which are respectively hinged to the upper ends of the first frame 1 and the second frame 2. The upper surface of both sets of hinge 5 is fixed with connecting plate 51, and two fixing bolts 52 are installed on the connecting plate 51.

[0032] Furthermore, the connecting plate 51 can be connected to the first seat plate 6 and the second seat plate 62 by means of the hinge 5 provided on the first frame 1 and the second frame 2, and then the fixing bolt 52 can be tightened by using tools to achieve the assembly of the chair.

[0033] Specifically, the adjustment assembly includes: a first seat plate 6, a movable plate 61, and a second seat plate 62. The first seat plate 6 is connected to the upper surface of a set of hinges 5, and a movable plate 61 is fixed to one side of the first seat plate 6. The end of the movable plate 61 is telescopically connected to a second seat plate 62 that is fixedly connected to another set of hinges 5.

[0034] Furthermore, with the cooperation of the movable plate 61, by pushing the first seat plate 6 and the second seat plate 62 closer to each other, the first frame 1 and the second frame 2 can be driven to rotate synchronously, causing the second frame 2 to rotate.

[0035] In use, the first frame 1 and the second frame 2 are placed in suitable positions. The connecting plate 51 is connected to the first seat plate 6 and the second seat plate 62 via the hinges 5 on the first and second frames 1 and 2. Then, the fixing bolts 52 are tightened using tools to assemble the chair. With the cooperation of the movable plate 61, pushing the first seat plate 6 and the second seat plate 62 closer together synchronously rotates the first frame 1 and the second frame 2. At this time, the reinforcing rod 44 on the first frame 1 acts as a limit, allowing the second frame 2 to rotate. When the second frame 2 rotates, its sidewall contacts the end of the limiting rod 42. The contact surface between the limiting rod 42 and the second frame 2 is tapered, allowing the second frame 2 to push the limiting rod 42 horizontally after contact, thereby causing the fixing block 46 to compress the return spring 45.

[0036] In summary, under the elastic force of the return spring 45, the limiting rod 42 will be pushed to return to its original position, allowing the end of the limiting rod 42 to insert into the limiting hole 43 within the first frame 1, thereby fixing the first frame 1 and the second frame 2, allowing the user to sit on the seat. Furthermore, the anti-slip support legs 3 at the bottom of the first frame 1 and the second frame 2 provide auxiliary support and prevent slipping.

[0037] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0038] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0039] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring extensive experimentation. It should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A portable chair frame that can be quickly folded and stored, characterized in that: include: The system comprises a first frame (1), a second frame (2), and anti-slip support legs (3); the second frame (2) is hinged to the inner wall of the first frame (1), and the anti-slip support legs (3) are welded and fixed to the lower ends of the first frame (1) and the second frame (2), respectively. The system also includes: The folding component, the fixing component, and the adjusting component are provided; the folding component is located inside the second frame (2), the fixing component is located at the upper end of the first frame (1) and the second frame (2), and the adjusting component is located above the fixing component.

2. The portable chair frame that can be quickly folded and stored according to claim 1, characterized in that: The folding assembly includes: a limiting member (4), a pull plate (41), a limiting rod (42), a limiting hole (43), a reinforcing rod (44), a reset spring (45), and a fixing block (46). The limiting member (4) is fixed to the inner side of the second frame (2), and the limiting rod (42) is telescopically connected inside the limiting member (4).

3. A portable chair frame that can be quickly folded and stored according to claim 2, characterized in that: One end of the limiting rod (42) is welded and fixed with a pull plate (41), and the other end of the limiting rod (42) is inserted and connected to a limiting hole (43) opened in the inner wall of the first frame (1).

4. A portable chair frame that can be quickly folded and stored according to claim 3, characterized in that: A reinforcing rod (44) is fixed inside the first frame (1), and the reinforcing rod (44) is rotatably connected to the second frame (2).

5. A portable chair frame that can be quickly folded and stored according to claim 4, characterized in that: Two fixing blocks (46) are symmetrically fixed on the outer surface of the limiting rod (42), and the side walls of the two fixing blocks (46) are abutted by a reset spring (45) that abuts and connects with the limiting member (4).

6. A portable chair frame that can be quickly folded and stored according to claim 5, characterized in that: The fixing components include: hinge (5), connecting plate (51) and fixing bolt (52). The hinge (5) is provided in two sets, and the two sets of hinge (5) are respectively hinged to the upper ends of the first frame (1) and the second frame (2).

7. A portable chair frame that can be quickly folded and stored according to claim 6, characterized in that: Both sets of hinges (5) have a connecting plate (51) fixed on their upper surfaces, and two fixing bolts (52) are installed inside the connecting plate (51).

8. A portable chair frame that can be quickly folded and stored according to claim 7, characterized in that: The adjustment assembly includes: a first seat plate (6), a movable plate (61), and a second seat plate (62). The first seat plate (6) is connected to the upper surface of a set of hinges (5). A movable plate (61) is fixed to one side of the first seat plate (6). The end of the movable plate (61) is telescopically connected to a second seat plate (62) which is fixedly connected to another set of hinges (5).

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