Folding sofa bed
Through the design of connecting rod components and elastic parts, auxiliary bed flips are solved, and the problem of flipping existing folding sofa beds requires a lot of effort, achieving labor-saving effect, suitable for users such as weak, elderly or women.
Patent Information
- Application Number
- CN202422654562.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-10-31
AI Technical Summary
The existing folding sofa bed requires a lot of effort during the flip process, which is especially difficult for people with weak bodies, elderly or women.
The connecting rod assembly and elastic member design is adopted to overcome the elastic force through the elastic force of the elastic member or its own gravity during the flip of the bed, reducing the force required by the user, including the linkage structure of the first crank, the second crank, the connecting rod and the elastic member.
It achieves the labor-saving effect during the flip of the bed, especially suitable for people with weak bodies, elderly or women, such as weak bodies, and is convenient for switching between sofa and bed state.
Smart Images
Figure CN223195787U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of beds, in particular to a folding sofa bed. Background Art
[0002] With the accelerating pace of urbanization, efficient use of living space has become a focus of attention. The design of the folding sofa bed, a piece of furniture that combines the functions of a sofa and a bed, was inspired by this urgent need for efficient use of living space. This piece of furniture not only addresses the limited space in small homes and apartments, but also meets the diverse needs of people in different living scenarios.
[0003] However, despite their significant space optimization benefits, folding sofa beds still present challenges in practical operation, particularly when flipping the bed to convert it into a sofa. Since bed decks are typically made of wood, metal, or composite materials, they are often heavy, requiring considerable force to flip. This not only increases the difficulty of operation but can also place strain on the user, particularly those with limited physical strength, such as the frail, elderly, or women.
[0004] Therefore, the utility model proposes a new folding sofa bed design, which aims to solve the problem of labor saving during the turning process of the bed board. Utility Model Content
[0005] (1) Technical problems solved
[0006] The utility model provides a folding sofa bed, which can at least solve the technical problem of how to reduce the effort required to flip a bed board and switch it into a sofa.
[0007] (2) Technical solution
[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a folding sofa bed, including a sofa state and a bed state, the folding sofa bed also includes:
[0009] bedstead;
[0010] A first bed board and a second bed board that are rotatably connected;
[0011] A connecting rod assembly includes a first crank, a second crank, a connecting rod, and an elastic member, wherein one end of the first crank and one end of the second crank are both rotatably mounted on the bed frame, and the other ends are rotatably connected to the first bed board and the second bed board, respectively; both ends of the connecting rod are rotatably connected to the first crank and the second crank, respectively; one end of the elastic member is connected to the bed frame, and the other end is connected to the first crank;
[0012] Among them, when the folding sofa bed is in the bed state, the first bed board and the second bed board are horizontally supported on the bed frame and combined to form a bed; when the folding sofa bed is switched from the bed state to the sofa state, the first crank rotates toward the second crank under the elastic force of the elastic member, and the second crank is linked to rotate in the same direction through the connecting rod, so as to drive the opposite sides of the first bed board and the second bed board to move downward, so that the first bed board and the second bed board respectively form a sofa seat and a sofa backrest.
[0013] It is further provided that the aforementioned folding sofa bed further includes a first locking member and a second locking member;
[0014] Wherein, when the folding sofa bed is in the bed state, the first locking member can detachably fix the first bed board and the second bed board;
[0015] When the foldable sofa bed is in the sofa state, the second locking piece can detachably fix the first bed board and the second bed board.
[0016] It is further provided that the aforementioned sub-bed includes at least two support rods, which are supported on the ground and can be telescopically arranged in a vertical direction.
[0017] Furthermore, the first locking member and the second locking member each include a first rod portion and two second rod portions, one end of the two second rod portions are respectively connected to the two ends of the first rod portion, and the other end of the second rod portion is arranged to extend obliquely toward the other second rod portion;
[0018] The first bed board and the second bed board are both provided with insertion holes for the second rod to be inserted into the insertion holes so as to detachably fix the first bed board and the second bed board.
[0019] It is further provided that the aforementioned bed frame comprises two side frames and a crossbeam, and both ends of the crossbeam are respectively connected to the two side frames;
[0020] When the folding sofa bed is in the bed state, the opposite sides of the first bed board and the second bed board are supported on two beams respectively, and the opposite sides are supported on the connecting rod assembly.
[0021] It is further configured that the aforementioned bed frame also includes a base plate, which is fixed to the inner side of the side frame, and two connecting rod assemblies corresponding to the base plates are also provided. One end of the first crank and one end of the second crank are both rotatably set on the corresponding base plates, one end of the elastic member is connected to the corresponding base plate, and the other end is connected to the first crank.
[0022] It is further provided that a handle is detachably provided on a side of the first bed board facing away from the second bed board and / or a side of the second bed board facing away from the first bed board.
[0023] Furthermore, the first and second bed boards each comprise a frame, a plurality of gaps are evenly distributed on the frame, and support legs are rotatably connected to the frame;
[0024] When the folding sofa bed is in the bed state, the supporting legs are vertically supported on the ground; when the folding sofa bed is in the sofa state, the supporting legs are stored in the gap.
[0025] (3) Beneficial effects
[0026] Compared with the prior art, the folding sofa bed provided by the present invention has the following beneficial effects:
[0027] The foldable sofa bed provided by the utility model can be freely switched between a sofa state and a bed state. When the foldable sofa bed is switched from the bed state to the sofa state, the elastic force of the elastic member assists the user in easily flipping the opposing sides of the first and second bed boards upward, so that the first and second bed boards respectively form a sofa seat and a sofa backrest, thereby achieving a labor-saving effect. Conversely, when the foldable sofa bed is switched from the sofa state to the bed state, the gravity of the first and second bed boards overcomes the elastic force of the elastic member, assisting the user in easily flipping the opposing sides of the first and second bed boards downward, so that the first and second bed boards are combined to form a bed, thereby achieving a labor-saving effect. It can be seen that the foldable sofa bed can effectively reduce the effort required by the user to flip the bed boards to switch to the sofa state through the connecting rod assembly, making it convenient for users to easily switch between the sofa state and the bed state, especially for people with limited strength, such as the frail, the elderly, or women. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 is a three-dimensional diagram of the foldable sofa bed in the sofa state in the embodiment;
[0029] Figure 2 for Figure 1 A magnified schematic diagram of point A in the middle;
[0030] Figure 3 is a cross-sectional view of the folding sofa bed in the embodiment in the sofa state;
[0031] Figure 4 2 is a cross-sectional view of the folding sofa bed in the embodiment in the bed state.
[0032] Figure Number:
[0033] 1. Bed frame; 11. Side frame; 12. Crossbeam; 13. Bottom plate;
[0034] 2. First bed board; 21. Insertion hole; 22. Frame; 23. Gap; 24. Support foot;
[0035] 3. Second bed board;
[0036] 4. Connecting rod assembly; 41. First crank; 42. Second crank; 43. Connecting rod; 44. Elastic member;
[0037] 5. a first locking member;
[0038] 6. Second locking member; 61. First rod portion; 62. Second rod portion;
[0039] 7. Handle. DETAILED DESCRIPTION
[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0041] The utility model provides a folding sofa bed, which comprises a sofa state and a bed state, and is used to solve the problem of how to reduce the effort required to flip a bed board and switch it into a sofa.
[0042] See Figure 1 and Figure 2 As shown, Figure 1 This is a three-dimensional diagram of the folding sofa bed in the sofa state in the embodiment. Figure 2 for Figure 1 In the enlarged schematic diagram at point A, the folding sofa bed also includes a bed frame 1, a first bed board 2, a second bed board 3 and a connecting rod assembly 4.
[0043] The first bed board 2 and the second bed board 3 are rotatably connected.
[0044] The connecting rod assembly 4 includes a first crank 41, a second crank 42, a connecting rod 43, and an elastic member 44. One end of the first crank 41 and one end of the second crank 42 are both rotatably connected to the bed frame 1. The other end of the first crank 41 is rotatably connected to the first bed board 2, and the other end of the second crank 42 is rotatably connected to the second bed board 3. The ends of the connecting rod 43 are rotatably connected to the first crank 41 and the second crank 42, respectively. One end of the elastic member 44 is connected to the bed frame 1, and the other end of the elastic member 44 is connected to the first crank 41.
[0045] Combine Figure 3 and Figure 4 As shown, Figure 3 This is a cross-sectional view of the folding sofa bed in the sofa state in the embodiment. Figure 4This is a cross-sectional view of the foldable sofa bed in the embodiment in the bed configuration. In this configuration, the first and second bed boards 2 and 3 are horizontally supported on the bed frame 1, forming a bed. To switch from the bed configuration to the sofa configuration, the first crank 41 rotates toward the second crank 42 under the elastic force of the elastic member 44. This, coupled with the second crank 42's simultaneous rotation via the connecting rod 43, drives the first and second bed boards 2 and 3 downward on their facing sides, thereby forming the sofa seat and backrest, respectively.
[0046] The foldable sofa bed of the above technical solution can freely switch between sofa and bed modes. Specifically, when the foldable sofa bed switches from the bed mode to the sofa mode, the elastic force of the elastic member 44 assists the user in easily flipping the opposing sides of the first and second bed boards 2, 3 upward, so that the first and second bed boards 2, 3 form the sofa seat and sofa backrest, respectively, achieving a labor-saving effect. Conversely, when the foldable sofa bed switches from the sofa mode to the bed mode, the gravity of the first and second bed boards 2, 3 overcomes the elastic force of the elastic member 44, assisting the user in easily flipping the opposing sides of the first and second bed boards 2, 3 downward, so that the first and second bed boards 2, 3 form a bed, achieving a labor-saving effect. It can be seen that the foldable sofa bed, through the connecting rod assembly 4, effectively reduces the effort required by the user to flip the bed boards to switch to the sofa mode, making it easier for users to easily switch between the sofa and bed modes, especially for those with limited physical strength, such as the frail, the elderly, or women.
[0047] The above-mentioned first bed board 2 and second bed board 3 can be made of lightweight and high-strength materials, such as aluminum alloy or carbon fiber composite materials. In this way, the first bed board 2 and second bed board 3 can not only ensure sufficient strength and stability, but also reduce weight, further reducing the effort required for the user to flip the bed board.
[0048] See Figure 1 and Figure 4 As shown, the folding sofa bed also includes a first locking member 5 and a second locking member 6. When the folding sofa bed is in the bed position, the first locking member 5 can be removably secured to the first and second bed boards 2 and 3 to maintain the folding sofa bed in the bed position. When the folding sofa bed is in the sofa position, the second locking member 6 can be removably secured to the first and second bed boards 2 and 3 to maintain the folding sofa bed in the sofa position. Thus, the first locking member 5 and the second locking member 6 are used to lock the positions of the first and second bed boards 2 and 3 in the bed and sofa positions, respectively, effectively preventing the first and second bed boards 2 and 3 from moving, thereby effectively ensuring the safe use of the folding sofa bed in both the bed and sofa positions.
[0049] See Figure 3As shown, in one embodiment of the first locking member 5 and the second locking member 6, each of the first locking member 5 and the second locking member 6 comprises a first rod portion 61 and two second rod portions 62. One end of each of the two second rod portions 62 is connected to the ends of the first rod portion 61 by integral connection or welding, and the other end of each second rod portion 62 extends obliquely toward the other second rod portion 62. Both the first and second bed boards 2 and 3 have insertion holes 21. The insertion holes 21 are used to receive the second rod portions 62, thereby removably securing the first and second bed boards 2 and 3. In this way, after flipping the first and second bed boards 2 and 3, the two second rods 62 of the first locking member 5 or the second locking member 6 are respectively inserted into the sockets 21 on the first and second bed boards 2 and 3, so that the first and second bed boards 2 and 3 can be quickly and detachably fixed, preventing the first and second bed boards 2 and 3 from further rotation. Conversely, by pulling the second rods 62 out of the sockets 21, the first and second bed boards 2 and 3 can be quickly unfastened, so that the first and second bed boards 2 and 3 can be flipped again, and the folding sofa bed can be flexibly switched between the bed state and the sofa state. It can be seen that the disassembly and assembly method of the first and second locking members 5 and 6 is simple and easy to operate.
[0050] See Figure 1 and Figure 4 As shown, in one embodiment of the bed frame 1, the bed frame 1 includes two side frames 11 and two crossbeams 12. The ends of the crossbeams 12 are connected to the two side frames 11 by screws or welding. When the folding sofa bed is in the sleeping position, the opposing sides of the first and second bed boards 2 and 3 are supported on the two crossbeams 12, respectively, while the facing sides of the first and second bed boards 2 and 3 are supported on the connecting rod assembly 4. In this way, when the folding sofa bed is switched from the sofa state to the bed state, the two opposite sides of the first bed board 2 and the second bed board 3 are flipped downward, and the first crank 41 is rotated away from the second crank 42. The first crank 41 is linked to the second crank 42 to rotate in the same direction through the connecting rod 43. During this process, the gravity of the first bed board 2 and the second bed board 3 themselves can overcome the elastic force of the elastic member 44, helping the user to easily flip the two opposite sides of the first bed board 2 and the second bed board 3 downward, and the crossbeam 12 can limit the flipping stroke of the first bed board 2 and the second bed board 3, and cannot continue to rotate, so that the first bed board 2 and the second bed board 3 remain in a horizontal state. At this time, the two sides of the first bed board 2 and the second bed board 3 are stably supported by the crossbeam 12 and the connecting rod assembly 4, which can effectively ensure the stability of the folding sofa bed in the bed state and prevent the folding sofa bed from switching to the sofa state by itself, affecting the user's experience.
[0051] See Figure 1 、 Figure 3 and Figure 4As shown, based on the above embodiment, the bed frame 1 further includes two base plates 13, which are fixed to the inner sides of the side frames 11 by screwing or welding. Two connecting rod assemblies 4 are also provided corresponding to the base plates 13. One end of a first crank 41 and one end of a second crank 42 are both rotatably connected to the corresponding base plates 13. One end of an elastic member 44 is connected to the corresponding base plate 13, and the other end is connected to the first crank 41. In this way, the two connecting rod assemblies 4 are respectively mounted on the inner sides of the two side frames 11 through the two base plates 13, respectively connecting the first bed board 2 and the second bed board 3. This further enhances the labor-saving effect of the folding sofa bed and further ensures that the folding sofa bed can smoothly switch between sofa and bed modes.
[0052] See Figure 4 As shown, the elastic member 44 can be a tension spring, one end of which is connected to the first crank 41, and the other end of which crosses the second crank 42 and is connected obliquely downward to the base plate 13. In this way, the tension spring can assist the user in rotating the first crank 41 toward the second crank 42 through its own elastic force, so that the user can switch the folding sofa bed from the bed position to the sofa position, thus saving effort.
[0053] See Figure 1 As shown, in one embodiment of the first bed board 2 and the second bed board 3, a handle 7 is detachably mounted on the side of the first bed board 2 facing away from the second bed board 3 and / or the side of the second bed board 3 facing away from the first bed board 2. Thus, the handle 7 facilitates flipping the first bed board 2 and / or the second bed board 3 to switch between the sofa state and the bed state of the folding sofa bed, further achieving the purpose of labor saving.
[0054] See Figure 1 and Figure 4 As shown, in one embodiment of the first and second bed boards 2, 3, each includes a frame 22 with a plurality of evenly distributed gaps 23. Support legs 24 are also rotatably connected to the frame 22. When the folding sofa bed is in the bed position, the support legs 24 are vertically supported on the ground; when the folding sofa bed is in the sofa position, the support legs 24 are stored in the gaps 23. This further enhances the stability of the folding sofa bed in the bed position when in use, and can be stored when not in use, effectively preventing users from bumping into the support legs 24 and enhancing the aesthetics of the folding sofa bed.
[0055] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A folding sofa bed, including a sofa state and a bed state, characterized in that: The folding sofa bed also includes: bedstead; A first bed board and a second bed board that are rotatably connected; A connecting rod assembly comprising a first crank, a second crank, a connecting rod, and an elastic member, wherein one end of the first crank and one end of the second crank are both rotatably mounted on the bed frame, and the other ends are rotatably connected to the first bed board and the second bed board, respectively; both ends of the connecting rod are rotatably connected to the first crank and the second crank, respectively; one end of the elastic member is connected to the bed frame, and the other end is connected to the first crank; Wherein, when the folding sofa bed is in the bed state, the first bed board and the second bed board are horizontally supported on the bed frame and combined to form a bed; when the folding sofa bed is switched from the bed state to the sofa state, the first crank rotates toward the second crank under the elastic force of the elastic member, and the second crank is linked to rotate in the same direction through the connecting rod, so as to drive the facing sides of the first bed board and the second bed board to move downward, so that the first bed board and the second bed board form a sofa seat and a sofa backrest respectively.
2. The folding sofa bed according to claim 1, characterized in that: The folding sofa bed further includes a first locking member and a second locking member; Wherein, when the folding sofa bed is in the bed state, the first locking member can detachably fix the first bed board and the second bed board; When the foldable sofa bed is in the sofa state, the second locking member can detachably fix the first bed board and the second bed board.
3. The folding sofa bed according to claim 2, characterized in that: The first locking member and the second locking member each include a first rod portion and two second rod portions, one end of each of the two second rod portions is connected to two ends of the first rod portion, and the other end of each second rod portion is obliquely extended toward the other second rod portion; The first bed board and the second bed board are both provided with insertion holes, and the insertion holes are used for the second rod to be inserted, so as to detachably fix the first bed board and the second bed board.
4. The folding sofa bed according to claim 1, characterized in that: The bed frame includes two side frames and a crossbeam, and both ends of the crossbeam are respectively connected to the two side frames; Wherein, when the folding sofa bed is in the bed state, the two opposite sides of the first bed board and the second bed board are respectively supported on the two cross beams, and the two facing sides are supported on the connecting rod assembly.
5. The folding sofa bed according to claim 4, characterized in that: The bed frame also includes two base plates, which are fixed to the inner sides of the side frames. Two connecting rod assemblies are also provided corresponding to the base plates. One end of the first crank and one end of the second crank are both rotatably set on the corresponding base plates. One end of the elastic member is connected to the corresponding base plate, and the other end is connected to the first crank.
6. The folding sofa bed according to claim 1, characterized in that: A side of the first bed board facing away from the second bed board and / or a side of the second bed board facing away from the first bed board is detachably provided with a handle.
7. The folding sofa bed according to claim 1, characterized in that: The first bed board and the second bed board each include a frame, a plurality of gaps are evenly distributed on the frame, and support legs are rotatably connected to the frame; Wherein, when the foldable sofa bed is in the bed state, the supporting legs are vertically supported on the ground; when the foldable sofa bed is in the sofa state, the supporting legs are stored in the gap.