High-stability sofa bed folding support and folding sofa bed thereof
By setting a reinforcement rod and support frame between the folding arms and legs of the sofa bed folding bracket, the problems of low support strength and low stability of the existing sofa bed folding structure are solved, and higher stability and durability are achieved.
Patent Information
- Application Number
- CN202421941957.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The existing sofa bed folding structure has low support strength, stability and low service life.
A high-stability sofa bed folding bracket is designed, and a reinforcement rod is provided between the front rotating folding arm and the rear rotating folding arm to form an integral structure, and a support frame is provided between the legs. The support frame is folded as a backrest in the sofa state and expanded as a support structure in the bed state.
Improves the overall support strength and stability of the sofa bed folding bracket, making it more durable and increases the load capacity of the folding sofa bed.
Smart Images
Figure CN222997630U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of folding sofas, and particularly relates to a folding bracket with high stability for a sofa bed and a folding sofa bed. Background Art
[0002] Existing sofa beds generally set folding brackets on both sides of the sofa bed to realize the switching between the sofa bed states. The folding structures on both sides are often connected through the middle seat frame and head frame. And the folding structures on both sides are generally independent of each other. Also, due to a large number of movable joints in the folding structure, the support strength of the folding structure is reduced, and the stability and service life of the sofa bed during use are not high. For this reason, we have designed and proposed a folding bracket with high stability for a sofa bed and a folding sofa bed. Content of the Utility Model
[0003] The purpose of the utility model is to solve the disadvantages of low support strength, low stability and short service life of the folding structure of the existing sofa bed, and to propose a folding bracket with high stability for a sofa bed and a folding sofa bed. The folding bracket with high stability for a sofa bed and the folding sofa bed have a stable structure, high strength and are more durable.
[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0005] Design a folding bracket with high stability for a sofa bed, including a base. The front and rear ends on both sides of the base are respectively rotatably connected with a front rotary folding arm and a rear rotary folding arm. A head frame connecting seat is rotatably connected to the free end of the rear rotary folding arm. A head frame folding connecting rod is rotatably connected to the head frame connecting seat. The other end of the head frame folding connecting rod is rotatably connected to the front rotary folding arm, so that the front rotary folding arm and the rear rotary folding arm are folded synchronously. A tail frame folding connecting rod is rotatably connected to the free end of the front rotary folding arm. The other end of the tail frame folding connecting rod is rotatably connected to a tail frame connecting seat.
[0006] It also includes legs. A leg folding connecting rod is rotatably connected to the legs. The leg folding connecting rod is rotatably connected to the side part of the tail frame connecting seat. The other end of the leg folding connecting rod is rotatably connected to a connecting seat folding arm. A first strengthening rod is fixedly connected between the front rotary folding arms on both sides. The first strengthening rod makes the front rotary folding arms on both sides form an integral structure. A second strengthening rod is fixedly arranged between the rear rotary folding arms on both sides. The second strengthening rod makes the rear rotary folding arms on both sides form an integral structure. A leg support frame is fixedly arranged between the legs on both sides. The leg support frame makes the legs on both sides form an integral structure. When in the sofa state, the leg support frame is folded to form a sofa backrest. When in the bed state, the leg support frame is unfolded to form a support structure.
[0007] Further, folding limit baffles are fixedly arranged on two side walls inside the base, and the folding limit baffles are arranged behind the rear rotary folding arm.
[0008] Further, the front rotary folding arm is in a triangular structure. The upper vertex is rotationally connected to the tail frame folding connecting rod, the front vertex at the lower part is rotationally connected to the base, and a tension spring is connected to the rear vertex. The other end of the tension spring is rotationally connected to the base.
[0009] Further, the number of the first reinforcing rods is not less than two, and they are evenly distributed on the front rotary folding arm.
[0010] In order to further solve the above technical problems, the present utility model also provides a highly stable sofa bed, which adopts the highly stable sofa bed folding bracket described above and includes a seat frame, a head frame and a tail frame. It is characterized in that the seat frame is rotationally connected between the head frame connecting seat and the tail frame connecting seat, one end of the head frame is rotationally connected inside the head frame connecting seat, one end of the tail frame is rotationally connected inside the tail frame connecting seat, and the legs are rotationally connected to both sides of the tail frame.
[0011] The beneficial effect of the highly stable sofa bed folding bracket provided by the present utility model is as follows: The highly stable sofa bed folding bracket and its folding sofa bed structure of the present utility model are stable in structure, high in strength and more durable. Specifically:
[0012] By arranging the first reinforcing rods between the front rotary folding arms on both sides, the front rotary folding arms on both sides form an integral structure. By arranging the second reinforcing rods between the rear rotary folding arms on both sides, the rear rotary folding arms on both sides form an integral structure. And by arranging the leg support frame between the legs on both sides, the legs on both sides form an integral structure. Moreover, the arrangement of the leg support frame folds to form a sofa backrest when in the sofa state and unfolds to form a support structure when in the bed state, which can effectively improve the overall support strength of the sofa bed folding bracket, make it more stable and durable, and at the same time can also increase the load-bearing capacity of the folding sofa bed. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:
[0014] Figure 1 is a three-dimensional structural schematic diagram of the sofa bed folding bracket in the unfolded state of the present utility model;
[0015] Figure 2 is a three-dimensional structural schematic diagram of the sofa bed folding bracket in the folded state of the present utility model;
[0016] Figure 3 is a schematic three-dimensional structure diagram of the sofa bed in the unfolded state according to the present utility model;
[0017] Figure 4 is a side view of the sofa bed in the unfolded state according to the present utility model;
[0018] In the figure, the markings are: 1, base; 11, front rotary folding arm; 111, first reinforcing rod; 12, rear rotary folding arm; 121, second reinforcing rod; 13, folding limit baffle; 2, seat frame; 21, head frame connecting seat; 22, tail frame connecting seat; 3, head frame; 4, tail frame; 41, leg; 42, leg support frame; 5, head frame folding connecting rod; 6, tail frame folding connecting rod; 7, leg folding connecting rod; 8, tension spring. Specific embodiments
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0022] Now, in conjunction with the accompanying drawings of the specification, the structural features of the present utility model will be described in detail.
[0023] See Figures 1-4, A highly stable sofa bed folding bracket, including a base 1. The base 1 serves as the bottom structure of the sofa bed. The front and rear ends on both sides of the base 1 are respectively rotatably connected with a front rotary folding arm 11 and a rear rotary folding arm 12. The front rotary folding arm 11 and the rear rotary folding arm 12 are located inside the base 1, which is convenient for folding and hiding. The free end of the rear rotary folding arm 12 is rotatably connected with a head frame connecting seat 21. A head frame folding link 5 is rotatably connected to the head frame connecting seat 21. The other end of the head frame folding link 5 is rotatably connected to the front rotary folding arm 11, enabling the front rotary folding arm 11 and the rear rotary folding arm 12 to be folded synchronously. In order to limit the folding position of the rear rotary folding arm 12, folding limit baffles 13 are fixedly arranged on the two side walls inside the base 1. The folding limit baffles 13 are arranged behind the rear rotary folding arm 12. After the rear rotary folding arm 12 is folded, it sits on the folding limit baffles 13. In order to improve the stability between the front rotary folding arms 11 and the rear rotary folding arms 12 on both sides, a first strengthening rod 111 is fixedly connected between the front rotary folding arms 11 on both sides. The first strengthening rod 111 makes the front rotary folding arms 11 on both sides form an integral structure. Among them, the number of the first strengthening rods 111 is not less than two and they are evenly distributed on the front rotary folding arm 11. The setting of the first strengthening rod 111 can effectively improve the support strength and stability of the front rotary folding arm 11. A second strengthening rod 121 is fixedly arranged between the rear rotary folding arms 12 on both sides. The second strengthening rod 121 makes the rear rotary folding arms 12 on both sides form an integral structure. The setting of the second strengthening rod 121 can effectively improve the support strength and stability of the rear rotary folding arm 12.
[0024] The free end of the front rotary folding arm 11 is rotatably connected with a tail frame folding link 6. The other end of the tail frame folding link 6 is rotatably connected with a tail frame connecting seat 22. The front rotary folding arm 11 is in a triangular structure. The upper vertex is rotatably connected with the tail frame folding link 6. The lower front vertex is rotatably connected to the base 1. The rear vertex is connected with a tension spring 8. The other end of the tension spring 8 is rotatably connected to the base 1. The tension spring 8 can play an auxiliary role in folding or unfolding, making folding or unfolding more labor-saving.
[0025] It also includes a leg 41. A leg folding link 7 is rotatably connected to the leg 41. The leg folding link 7 is rotatably connected to the side part of the tail frame connecting seat 22. The other end of the leg folding link 7 is rotatably connected with a connecting seat folding arm 71. In order to provide the stability and support strength of the legs 41 on both sides, a leg support frame 42 is fixedly arranged between the legs 41 on both sides. The leg support frame 42 makes the legs 41 on both sides form an integral structure. When in the sofa state, the leg support frame 42 is folded to form a sofa backrest. When in the bed state, the leg support frame 42 is unfolded to form a support structure.
[0026] For further illustration, this embodiment also proposes a sofa bed with high stability, which adopts a folding bracket for the sofa bed with high stability and includes a seat frame 2, a head frame 3 and a tail frame 4. It is characterized in that the seat frame 2 is rotatably connected between a head frame connecting seat 21 and a tail frame connecting seat 22. One end of the head frame 3 is rotatably connected within the head frame connecting seat 21, and one end of the tail frame 4 is rotatably connected within the tail frame connecting seat 22. The legs 41 are rotatably connected to both sides of the tail frame 4. One end of the connecting seat folding arm 71 away from the leg folding link 7 is rotatably connected to the side of the seat frame 2. Among them, the bottoms of the head frame connecting seat 21 and the tail frame connecting seat 22 are of an open structure to facilitate the folding and limiting of the head frame 3, the head frame 3 and the tail frame 4.
[0027] For the folding bracket of the sofa bed with high stability of the present utility model, by arranging a first reinforcing rod 111 between the front rotating folding arms 11 on both sides, the front rotating folding arms 11 on both sides form an integral structure. By arranging a second reinforcing rod 121 between the rear rotating folding arms 12 on both sides, the rear rotating folding arms 12 on both sides form an integral structure. And by arranging a leg support frame 42 between the legs 41 on both sides, the legs 41 on both sides form an integral structure. Moreover, the setting of the leg support frame 42, when in the sofa state, the leg support frame 42 folds to form the backrest of the sofa. When in the bed state, the leg support frame 42 unfolds to form a support structure, which can effectively improve the overall support strength of the folding bracket of the sofa bed, making it more stable and durable. At the same time, it can also increase the load-bearing capacity of the folding sofa bed.
[0028] Specifically, when the sofa bed with high stability is in use, the seat frame 2 is folded into the base 1 in a translational manner under the support of the front rotating folding arms 11 and the rear rotating folding arms 12. During the translational folding process of the seat frame 2, the head frame 3 is folded and erected. Then, the tail frame 4 is folded in a rotational manner and superimposed above the seat frame 2. During the folding process of the tail frame 4, the legs 41 are folded under the linkage of the leg folding link 7, and the leg support frame 42 is rotated together to the back of the base 1 to form the backrest of the sofa. It is unfolded in the reverse order. After unfolding, the leg support frame 42 is located at the front end of the tail frame 4 and jointly supports the front end of the tail frame 4 with the legs 41 to form a stable support structure.
[0029] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A high-stability sofa bed folding bracket, comprising a base (1), wherein the front and rear ends of both sides of the base (1) are rotatably connected to a front rotating folding arm (11) and a rear rotating folding arm (12), respectively, wherein: The free end of the rear rotating folding arm (12) is rotatably connected to a head frame connecting seat (21), the head frame connecting seat (21) is rotatably connected to a head frame folding connecting rod (5), and the other end of the head frame folding connecting rod (5) is rotatably connected to the front rotating folding arm (11), so that the front rotating folding arm (11) and the rear rotating folding arm (12) are folded synchronously; The free end of the front rotating folding arm (11) is rotatably connected to a tail frame folding connecting rod (6), and the other end of the tail frame folding connecting rod (6) is rotatably connected to a tail frame connecting seat (22); It also includes a leg (41), the leg (41) is rotatably connected to a leg folding link (7), the leg folding link (7) is rotatably connected to the side of the tail frame connecting seat (22), and the other end of the leg folding link (7) is rotatably connected to a connecting seat folding arm (71); A first reinforcing rod (111) is fixedly connected between the front rotating folding arms (11) on both sides, and the first reinforcing rod (111) enables the front rotating folding arms (11) on both sides to form an integrated structure; A second reinforcing rod (121) is fixedly provided between the rear rotating folding arms (12) on both sides, and the second reinforcing rod (121) enables the rear rotating folding arms (12) on both sides to form an integrated structure; A leg support frame (42) is fixedly provided between the legs (41) on both sides, and the leg support frame (42) enables the legs (41) on both sides to form an integrated structure. When in a sofa state, the leg support frame (42) is folded to form a sofa backrest, and when in a bed state, the leg support frame (42) is unfolded to form a supporting structure.
2. The high stability sofa bed folding bracket according to claim 1, characterized in that: A folding limit baffle (13) is fixedly provided on two side walls inside the base (1), and the folding limit baffle (13) is arranged behind the rear rotating folding arm (12).
3. The high stability sofa bed folding bracket according to claim 1, characterized in that: The front rotating folding arm (11) is in a triangular structure, the upper vertex is rotatably connected to the tail frame folding connecting rod (6), the lower front vertex is rotatably connected to the base (1), the rear vertex is connected to a tension spring (8), and the other end of the tension spring (8) is rotatably connected to the base (1).
4. The high stability sofa bed folding bracket according to claim 1, characterized in that: The number of the first reinforcing rods (111) is no less than two and they are evenly distributed on the front rotating folding arm (11).
5. A high-stability sofa bed, using the high-stability sofa bed folding bracket according to any one of claims 1 to 4, comprising a seat frame (2), a head frame (3) and a tail frame (4), characterized in that: The seat frame (2) is rotatably connected between the head frame connecting seat (21) and the tail frame connecting seat (22); one end of the head frame (3) is rotatably connected in the head frame connecting seat (21); one end of the tail frame (4) is rotatably connected in the tail frame connecting seat (22); the support leg (41) is rotatably connected to both sides of the tail frame (4); and one end of the connection seat folding arm (71) away from the support leg folding connecting rod (7) is rotatably connected to the side of the seat frame (2).