Foldable chair

Abstract

The utility model provides a foldable chair. The foldable chair comprises a supporting rod group, a first turnover rod group and a second turnover rod group, the first folding rod set and the second folding rod set are arranged on the supporting rod set and can be folded towards the two sides of the supporting rod set. A human body supporting part is arranged on the first folding rod group; the second turnover rod group is in contact with the ground; the supporting rod group comprises a supporting main rod; the supporting main rod is of a telescopic rod structure. In the embodiment of the invention, when the chair needs to be unfolded or folded, the relative angle between the first folding rod group and the supporting rod group, the relative angle between the second folding rod group and the supporting rod group and the stretching of the supporting main rod can be adjusted; therefore, the chair can be switched between an unfolded state and a folded state, the chair can be unfolded when the chair needs to be used, the chair can be folded when the chair does not need to be used, and the chair which can efficiently save space is obtained.

Description

Technical Field

[0001] This application relates to the field of space storage technology, specifically to a foldable chair. Background Technology

[0002] A chair is a type of seating with a backrest, and sometimes armrests, originating from the ancient practice of sitting on the floor. With the development of furniture craftsmanship, chairs have gradually transformed from a symbol of power into everyday utensils. They come in a variety of materials, including wood, metal, and plastic, and vary in form and function, such as office chairs and lounge chairs, meeting the needs of different occasions and becoming an indispensable part of modern life.

[0003] Currently, most household chairs on the market cannot be folded, or even when folded, they still take up a lot of space, resulting in low space utilization. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model discloses a foldable chair that solves the technical problem that existing household chairs on the market cannot be folded, or still occupy a lot of space after being folded, resulting in low space utilization.

[0005] To achieve the above objectives, this application provides a foldable chair, which includes a support rod assembly, a first folding rod assembly, and a second folding rod assembly;

[0006] The first folding rod group and the second folding rod group are rotatably mounted on the support rod group, and the first folding rod group and the second folding rod group can fold to both sides of the support rod group; the first folding rod group is provided with a human body support part; the second folding rod group is in contact with the ground;

[0007] The support rod assembly includes a main support rod; the main support rod is a telescopic rod structure.

[0008] During the use of the chair, when the first folding rod group folds down to be flush with or nearly flush with the support rod group, the second folding rod group folds up to be flush with or nearly flush with the support rod group, and the main support rod is in a retracted state, the chair changes from an unfolded state to a folded state.

[0009] In one possible embodiment, the support rod assembly includes a first support rod;

[0010] The first end of the first support rod is disposed on the main support rod, and the second end of the first support rod is rotatably connected to the first folding rod assembly.

[0011] In one possible embodiment, a connecting slide is rotatably provided at the first end of the first support rod;

[0012] The connecting slide is slidably mounted on the supporting main rod;

[0013] During the folding or unfolding of the chair, the connecting slide can slide on the supporting main rod.

[0014] In one possible embodiment, a buffer is provided between the connecting slide and the bottom end of the supporting main rod.

[0015] In one possible embodiment, the buffer element includes a buffer cylinder or a buffer spring.

[0016] In one possible embodiment, the second folding rod assembly includes two supporting ground rods;

[0017] When the chair is in the unfolded state, the first end of the main support rod is in contact with the ground, and the second end of the main support rod is connected to the first end of the ground support rod; the second end of the ground support rod is used to contact the ground.

[0018] In one possible embodiment, a first connecting rod is provided between the two supporting ground poles;

[0019] A second connecting rod is connected to the middle section of the first connecting rod; the two ends of the second connecting rod are respectively rotatably mounted on the first connecting rod and the main support rod.

[0020] In one possible embodiment, the first folding rod assembly includes two second support rods and two third support rods corresponding one-to-one with the two second support rods;

[0021] The first end of each second support rod is rotatably mounted on the main support rod, and the second end of each second support rod is rotatably connected to the third support rod corresponding to each second support rod;

[0022] The distance between the first ends of the two second support rods is less than the distance between the second ends of the two second support rods;

[0023] When the chair is in the unfolded state, the second support rod is used to support the buttocks of the human body, and the third support rod is used to support the back of the human body.

[0024] In one possible embodiment, a rotating folding assembly is provided between the two third support rods;

[0025] The rotating folding assembly includes a rotating folding base and two fourth support rods; both ends of each fourth support rod are rotatably and slidably disposed on the two third support rods, and at least one end of each fourth support rod is slidably disposed on the two third support rods; the second end of the first support rod is rotatably disposed on the rotating folding base.

[0026] The two fourth support rods are arranged crosswise through the rotating folding seat;

[0027] The rotating folding seat is provided with two first limiting parts corresponding to the two fourth support rods; each fourth support rod is rotatably disposed within the first limiting part corresponding to each fourth support rod.

[0028] In one possible embodiment, a second limiting part is provided at the connection between the main support rod and the second support rod; the first end of the second support rod is rotatably disposed within the second limiting part;

[0029] A third limiting part is provided at the connection between the third support rod and the second support rod; the second end of the second support rod is rotatably disposed within the third limiting part.

[0030] The technical solution provided in this application has the following technical effects:

[0031] In the embodiments of this application, when it is necessary to unfold the chair or fold the chair, the relative angle between the first folding rod group and the support rod group can be adjusted, the relative angle between the second folding rod group and the support rod group can be adjusted, and the extension and retraction state of the support main rod can be adjusted, thereby realizing the state transition of the chair between the unfolded state and the folded state. Thus, the chair can be unfolded when it is needed and folded when it is not needed, resulting in a chair that can efficiently save space. Attached Figure Description

[0032] To more clearly illustrate the technical solutions and advantages in the embodiments of this application or the prior art, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a foldable chair provided in an embodiment of this application. Figure 1 ;

[0034] Figure 2 This is a side view of a foldable chair provided in an embodiment of this application;

[0035] Figure 3 This is a schematic diagram of the structure of a foldable chair provided in an embodiment of this application. Figure 2 ;

[0036] Figure 4 This is a schematic diagram of the structure of a foldable chair provided in an embodiment of this application. Figure 3 ;

[0037] Figure 5 This is a schematic diagram of the structure of a foldable chair after folding, as provided in an embodiment of this application.

[0038] The labels in the diagram are explained as follows:

[0039] 1-Support rod assembly; 11-Main support rod; 111-Second limiting part; 12-First support rod; 13-Connecting slide; 14-Buffer; 2-First folding rod assembly; 21-Second support rod; 22-Third support rod; 221-Handrail; 23-Rotating folding assembly; 231-Rotating folding seat; 232-Fourth support rod; 233-First limiting part; 234-Third limiting part; 24-Handle; 3-Second folding rod assembly; 31-Supporting ground rod; 32-First connecting rod; 33-Second connecting rod. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0041] It should be noted that the term "an embodiment" or "embodiment" in the specification of the embodiments of this application refers to a specific feature, structure, or characteristic that can be included in at least one implementation of this application. It should be understood that in the specification, claims, and accompanying drawings of the embodiments of this application, the terms "upper," "lower," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0042] like Figures 1 to 5 As shown, this application provides a foldable chair, which includes a support rod assembly 1, a first folding rod assembly 2, and a second folding rod assembly 3. The first folding rod assembly 2 and the second folding rod assembly 3 can be folded to be flush with or approximately flush with the support rod assembly 1, thereby realizing the folding function of the foldable chair.

[0043] In one possible embodiment, the first folding lever assembly 2 and the second folding lever assembly 3 are rotatably disposed on both sides of the support rod assembly 1. The first folding lever assembly 2 and the second folding lever assembly 3 can fold to both sides of the support rod assembly 1. The first folding lever assembly 2 may be provided with a human body support part, and the second folding lever assembly 3 may be in contact with the ground. When the chair is in the unfolded state, the first folding lever assembly 2 may be located above the support rod assembly 1, and the second folding lever assembly 3 may be located below the support rod assembly 1.

[0044] Optionally, the support rod assembly 1 may include a main support rod 11, which is a telescopic rod structure. When the chair is in the unfolded state, the main support rod 11 can be stretched, and when the chair is in the folded state, the main support rod 11 can be retracted, thereby realizing the unfolding or folding of the chair.

[0045] During the use of the chair, when the first folding rod group 2 folds down to be flush with or nearly flush with the support rod group 1, the second folding rod group 3 folds up to be flush with or nearly flush with the support rod group 1, and the main support rod 11 is in a retracted state, the chair changes from an unfolded state to a folded state.

[0046] Similarly, the first folding lever group 2 can be folded upward to its limit, the second folding lever group 3 can be folded downward to its limit, and the main support rod 11 can be stretched, thereby changing the chair from a folded state to an unfolded state.

[0047] In the embodiments of this application, when it is necessary to unfold the chair or fold the chair, the relative angle between the first folding rod group 2 and the support rod group 1 can be adjusted, the relative angle between the second folding rod group 3 and the support rod group 1 can be adjusted, and the extension and retraction state of the support main rod 11 can be adjusted, thereby realizing the state transition of the chair between the unfolded state and the folded state. Thus, the chair can be unfolded when it is needed and folded when it is not needed, resulting in a chair that can efficiently save space.

[0048] In one possible embodiment, the support rod assembly 1 includes a first support rod 12. The first end of the first support rod 12 can be disposed on the main support rod 11, and the second end of the first support rod 12 is rotatably connected to the first folding rod assembly 2. When the chair is in the unfolded state, the first support rod 12 can be used to support the first folding rod assembly 2.

[0049] In one possible embodiment, the first end of the first support rod 12 is rotatably provided with a connecting slide 13, and the first end of the first support rod 12 is mounted on the main support rod 11 through the connecting slide 13.

[0050] Optionally, the connecting slide 13 is slidably mounted on the supporting main rod 11, and the first end of the first supporting rod 12 can be rotated and slidably mounted on the supporting main rod 11 through the connecting slide 13.

[0051] During the folding or unfolding of the chair, the connecting slide 13 can slide on the main support rod 11. During the adjustment of the relative angle between the main support rod 11 and the first support rod 12, the first end of the first support rod 12 slides on the main support rod 11 via the connecting slide 13.

[0052] In one possible embodiment, a buffer 14 is provided between the connecting slide 13 and the bottom end of the support rod 11. When a person sits on the support part of the first folding rod assembly 2, or when the first folding rod assembly 2 is used to place heavy objects, the buffer 14 provides buffer support to the connecting slide 13, thereby preventing the slide from continuously moving downward and causing the first folding rod assembly 2 to continuously fold downward relative to the support rod assembly 1, and also preventing the connecting slide 13 from suddenly moving downward and causing the chair to become unstable when a person suddenly sits on the human support part.

[0053] In one possible embodiment, the buffer 14 includes a buffer cylinder or a buffer spring. The support rod 11 can provide buffer support to the connecting slide 13 through the buffer cylinder or buffer spring.

[0054] In one possible embodiment, the second folding rod assembly 3 includes two supporting ground rods 31, which can support the first folding rod assembly 2 and the support rod assembly 1 by contacting the ground.

[0055] When the chair is in the unfolded state, the first end of the main support rod 11 contacts the ground, and the second end of the main support rod 11 is connected to the first end of the ground support rod 31, the second end of which is also in contact with the ground. The main support rod 11, the ground support rod, and the ground can form a triangular support structure, which has relatively high support stability.

[0056] In one possible embodiment, a first connecting rod 32 is provided between the two supporting ground rods 31. The two ends of the first connecting rod 32 can be connected to the two supporting ground rods 31 respectively, and the two ends of the first connecting rod 32 can be detachably connected to the two ground rods.

[0057] Optionally, a second connecting rod 33 is connected to the middle section of the first connecting rod 32, and the two ends of the second connecting rod 33 are respectively rotatably mounted on the first connecting rod 32 and the main support rod 11. The second connecting rod 33, together with the second end of the main support rod 11 and the first end of the bottom support rod, can form a triangular support structure, which has relatively high support stability.

[0058] Optionally, after the chair is finished using, the second connecting rod 33 and the supporting ground rod 31 are rotated to be flush with or nearly flush with the supporting main rod 11, so that the chair can be stored away.

[0059] In one possible embodiment, the first folding rod assembly 2 includes two second support rods 21 and two third support rods 22 corresponding to the two second support rods 21. The second support rods 21 and the third support rods 22 can work together to provide ergonomic support for the chair.

[0060] Optionally, the first end of each second support rod 21 can be rotatably mounted on the main support rod 11, and the second end of each second support rod 21 is rotatably connected to the third support rod 22 corresponding to each second support rod 21.

[0061] Optionally, a rotating connector may be provided at the connection between the second support rod 21 and the main support rod 11, and at the connection between the second support rod 21 and the third support rod 22. The rotating connector may be used for rotating connection between the main support rod 11, the second support rod 21 and the third support rod 22.

[0062] Optionally, the distance between the first ends of the two second support rods 21 is smaller than the distance between the second ends of the two second support rods 21. This design can improve the stability of the chair when in use. When the chair is folded, the main support rod 11 and the first support rod 12 can be retracted between the two second support rods 21.

[0063] Optionally, when the chair is in the unfolded state, the second support rod 21 is used to support the buttocks of the user. The second support rod 21 can be set horizontally, and the third support rod 22 is used to support the back of the user. The third support rod 22 can be set vertically. An armrest 221 structure can be provided on the third support rod 22. The armrest 221 can also be rotatably set on the third support rod 22 and can be retracted to a state parallel to the third support rod 22.

[0064] In one possible embodiment, a rotating folding assembly 23 is provided between the two third support rods 22. The rotating folding assembly 23 is used to bring the two third support rods 22 together, thereby folding the two third support rods 22.

[0065] Optionally, the rotating folding assembly 23 includes a rotating folding base 231 and two fourth support rods 232. Each fourth support rod 232 has its two ends rotatably and slidably mounted on two third support rods 22, and at least one end of each fourth support rod 232 is slidably mounted on the two third support rods 22. One or both ends of each fourth support rod 232 can be slidably mounted on the two third support rods 22, thereby enabling the folding of the fourth support rods 232 on the third support rods 22. The two fourth support rods 232 can be symmetrically arranged. When the chair is unfolded, the fourth support rods 232 unfold relative to the rotating folding base 231; when the chair is folded, the fourth support rods 232 fold relative to the rotating folding base 231.

[0066] Optionally, the second end of the first support rod 12 can be rotatably mounted on the rotating folding seat 231, so that the first support rod 12 rotates on the rotating folding seat 231 when the chair is unfolded or retracted.

[0067] Optionally, the two fourth support rods 232 are arranged crosswise via a rotating folding seat 231, which can be located at the center of the intersection of the two fourth folding rods.

[0068] Optionally, the rotating folding base 231 is provided with two first limiting portions 233 corresponding to the two fourth support rods 232. Each fourth support rod 232 is rotatably disposed within the first limiting portion 233 corresponding to each fourth support rod 232. The first limiting portion 233 can be as follows: Figure 4 As shown in the limiting hole or limiting groove structure, during the folding or unfolding of the chair, the fourth support rod 232 always reciprocates within the limiting hole structure, and the limiting hole structure of the first limiting part 233 is used to limit the rotation angle of the fourth support rod 232 on the rotating folding seat 231.

[0069] In one possible embodiment, a second limiting part 111 is provided at the connection between the main support rod 11 and the second support rod 21. The first end of the second support rod 21 is rotatably disposed in the second limiting part 111. The second limiting part 111 may include a limiting hole structure. During the folding or unfolding of the chair, the limiting hole structure of the second limiting part 111 is used to limit the relative angle between the second support rod 21 and the main support rod 11.

[0070] Optionally, a third limiting part 234 is provided at the connection between the third support rod 22 and the second support rod 21. The second end of the second support rod 21 is rotatably disposed within the third limiting part 234, and the first end of the third support rod 22 can also be rotatably disposed within the third limiting part 234. The third limiting part 234 may include, for example, Figure 4The two limiting hole structures shown are used to limit the rotation angle of the second support rod 21 and the third support rod 22 during the folding or unfolding of the chair.

[0071] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, specific embodiments have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0072] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the device embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

Claims

1. A foldable chair, characterized in that, Includes a support rod assembly, a first folding rod assembly, and a second folding rod assembly; The first folding rod group and the second folding rod group are rotatably mounted on the support rod group, and the first folding rod group and the second folding rod group can fold to both sides of the support rod group; the first folding rod group is provided with a human body support part; the second folding rod group is in contact with the ground; The support rod assembly includes a main support rod; the main support rod is a telescopic rod structure. When the first folding rod group folds down to be flush with or nearly flush with the support rod group, the second folding rod group folds up to be flush with or nearly flush with the support rod group, and the main support rod is in a retracted state, the chair changes from an unfolded state to a folded state.

2. The chair according to claim 1, characterized in that, The support rod assembly includes a first support rod; The first end of the first support rod is disposed on the main support rod, and the second end of the first support rod is rotatably connected to the first folding rod assembly.

3. The chair according to claim 2, characterized in that, The first end of the first support rod is rotatably provided with a connecting slide. The connecting slide is slidably mounted on the supporting main rod; During the folding or unfolding of the chair, the connecting slide can slide on the supporting main rod.

4. The chair according to claim 3, characterized in that, A buffer is provided between the connecting slide and the bottom end of the supporting main rod.

5. The chair according to claim 4, characterized in that, The buffer component includes a buffer cylinder or a buffer spring.

6. The chair according to claim 1, characterized in that, The second folding rod assembly includes two supporting ground rods; When the chair is in the unfolded state, the first end of the main support rod is in contact with the ground, and the second end of the main support rod is connected to the first end of the ground support rod. The second end of the supporting pole is used to contact the ground.

7. The chair according to claim 6, characterized in that, A first connecting rod is provided between the two supporting ground poles; A second connecting rod is connected to the middle section of the first connecting rod; the two ends of the second connecting rod are respectively rotatably mounted on the first connecting rod and the main support rod.

8. The chair according to claim 2, characterized in that, The first folding rod assembly includes two second support rods and two third support rods that correspond one-to-one with the two second support rods; The first end of each second support rod is rotatably mounted on the main support rod, and the second end of each second support rod is rotatably connected to the third support rod corresponding to each second support rod; The distance between the first ends of the two second support rods is less than the distance between the second ends of the two second support rods; When the chair is in the unfolded state, the second support rod is used to support the buttocks of the human body, and the third support rod is used to support the back of the human body.

9. The chair according to claim 8, characterized in that, A rotating and folding assembly is provided between the two third support rods; The rotating folding assembly includes a rotating folding base and two fourth support rods; both ends of each fourth support rod are rotatably mounted on the two third support rods, and at least one end of each fourth support rod is slidably mounted on the two third support rods; the second end of the first support rod is rotatably mounted on the rotating folding base. The two fourth support rods are arranged crosswise through the rotating folding seat; The rotating folding seat is provided with two first limiting parts corresponding to the two fourth support rods; each fourth support rod is rotatably disposed within the first limiting part corresponding to each fourth support rod.

10. The chair according to claim 8, characterized in that, A second limiting part is provided at the connection between the main support rod and the second support rod; the first end of the second support rod is rotatably disposed within the second limiting part; A third limiting part is provided at the connection between the third support rod and the second support rod; the second end of the second support rod is rotatably disposed within the third limiting part.

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