Folding sofa bed frame

Abstract

The utility model provides a folding type sofa bed frame and relates to the field of sofa bed frames, a spring shaft is rotatably connected with a base, the spring shaft is of a pull-up lifting structure, the outer side of the spring shaft is fixedly connected with a connecting plate, and the connecting plate is transverse in a normal state and is parallel to the base. In order to solve the problems that the sofa bed frame is very easy to shake after being unfolded and the experience of a user is affected when the sofa bed frame is used due to the lack of an effective traction connection structure after being unfolded, a connecting plate capable of rotating around a base is arranged, so that when the sofa bed frame is used, the connecting plate can rotate around the base; after the supporting frame is rotated and unfolded, the connecting plate installed in the base is manually rotated to turn over and is parallel to the supporting frame, at the moment, a connecting bolt penetrates through the connecting plate and the supporting frame to achieve traction and supporting of the supporting frame, and then the situation that the bed frame shakes is prevented.

Description

Technical Field

[0001] The utility model belongs to the field of sofa bed frames, in particular to a folding sofa bed frame. Background Art

[0002] A sofa bed refers to a piece of furniture that can be used as both a sofa and a bed. Modern living room layout advocates simplicity, and multifunctional furniture is becoming more and more popular. Sofa beds are one of them. In small-sized rooms, a sofa bed is necessary to meet the living needs of occasional visitors. When using it, the sofa bed needs to be converted between the bed and the sofa, and when it is converted, a corresponding bed frame is needed for support. However, when the existing sofa bed frame is used, it lacks an effective traction connection structure after it is unfolded, so that the sofa bed frame is easy to shake after it is unfolded, which affects the user's experience when it is used.

[0003] Therefore, in view of the shortcomings of the above-mentioned scheme in actual production and implementation, it is revised and improved. At the same time, in the spirit and concept of seeking for excellence, with the assistance of professional knowledge and experience, and after many ingenuity and experiments, the utility model is created, and a foldable sofa bed frame is provided to solve the problem that the existing sofa bed frame lacks an effective traction connection structure when it is unfolded, so that the sofa bed frame is easy to shake after it is unfolded, which affects the user experience when it is used. Summary of the invention

[0004] The utility model provides a foldable sofa bed frame, which solves the problem that the existing sofa bed frame lacks an effective traction connection structure after being unfolded, so that the sofa bed frame is easy to shake after being unfolded, which affects the user's experience during use.

[0005] The technical solution of the utility model is implemented as follows: a foldable sofa bed frame includes a base, the main body of the base is arranged horizontally, and the base is provided at two locations, the two bases are arranged oppositely, and the inner sides of the two bases are also fixedly connected with a crossbeam, the crossbeam is arranged longitudinally, and there are two crossbeams, the two crossbeams are fixedly connected to the inner sides of the two bases in a linear array, and the crossbeam and the base are arranged vertically, and spring shafts are installed on the top surfaces of the two bases, the spring shaft is connected to the base for rotation, and the spring shaft is a pull-up lifting structure, and the outer side of the spring shaft is fixedly connected with a connecting plate, which is horizontal under normal conditions and arranged parallel to the base:

[0006] As a preferred embodiment, the two groups of connecting plates are respectively fixedly connected to the left and right side positions of the two bases, the connecting plates and the bases together constitute a connecting structure, and the inner sides of the two groups of connecting plates are also rotatably connected to a support frame, the main body of the support frame is a rectangular frame structure, and the interior of the support frame is provided with two through holes A and through holes B in a linear array, and the through holes A and the through holes B are vertically arranged.

[0007] As a preferred embodiment, the connecting plates are provided at four locations, wherein every two laterally adjacent connecting plates form a group, and the two groups of connecting plates are installed opposite to each other on the top end surfaces of the two bases, and a through hole is provided on the side of the connecting plate away from the spring axis, a fixing bolt is screwed into the interior of the through hole, and the fixing bolt and the connecting plate together constitute a connecting structure.

[0008] As a preferred embodiment, notches are provided on the top surfaces of the two bases, and partitions are fixedly connected to the inside of the notches in a linear array. The partitions and the bases are vertically arranged and arranged at equal intervals. The partitions and the bases together constitute a partition structure for the connecting plate, and the inside of the notches provided on the top surfaces of the bases are fixedly connected to plug posts.

[0009] As a preferred embodiment, the main body of the plug is a cylindrical structure, and the plug is separated by a partition fixedly connected to the top surface of the base, and a connecting plate is fixedly connected to the outer side of the base, the connecting plate and the base are vertically arranged, and there are four connecting plates in total, wherein every two laterally adjacent connecting plates form a group.

[0010] As a preferred embodiment, a support plate is sleeved on the outer side of the plug column, a positioning hole is opened inside the support plate, and two positioning holes are opened inside each support plate in a linear array, and a rotating shaft is fixedly connected to one side of the support frame close to the connecting plate, the diameter of the rotating shaft is larger than the diameter of the support frame, and the support frame is rotatably connected to the inner side of the connecting plate through the rotating shaft fixedly connected on its outer side surface, and the interior of the support frame is also rotatably connected to an exhibition frame, the main body of the exhibition frame is a rectangular frame structure, and the outer side of the exhibition frame is also fixedly connected to a guide rod, and the outer circumference of the guide rod is provided with external threads on both sides, and a nut is screwed on the outer side of the external thread, and two reinforcing plates are staggered and fixedly connected to the interior of each exhibition frame, and the reinforcing plates are arranged in an X shape.

[0011] After using the above technical solution, the beneficial effects of the utility model are:

[0012] 1. In the utility model, a connecting plate that can rotate around the base is provided, so that when it is in use, after the support frame is rotated and unfolded, the connecting plate installed in the base can be manually rotated to turn it over and set it parallel to the support frame. At this time, the connecting bolt is passed through the connecting plate and the support frame to achieve traction support for the support frame, thereby preventing the bed frame from shaking.

[0013] 2. In the utility model, the display frame and the reinforcement plate are rotatably connected inside the support frame, so that after the support frame is unfolded, the display frame and the reinforcement plate can be further displayed, and the reinforcement plate and the display frame can be used as a vertical setting to support the support frame at the same time, so that when it is used, it can achieve further support and limitation of the sofa bed after expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a front and side structural schematic diagram of the sofa bed frame of the utility model after being disassembled;

[0016] Figure 2 This is a schematic diagram of the combined structure of the sofa bed frame of the utility model;

[0017] Figure 3 It is a schematic diagram of the combined structure of the spring shaft and the connecting plate of the sofa bed frame of the utility model;

[0018] Figure 4 It is a schematic diagram of the combined structure of the display frame and guide rod of the sofa bed frame of the utility model;

[0019] Figure 5 It is a top view structural schematic diagram of the sofa bed frame of the utility model;

[0020] Figure 6 It is a schematic diagram of the combined structure of the display frame and guide rod of the sofa bed frame of the utility model;

[0021] In the figure, 1, base; 101, crossbeam; 102, partition; 103, side plate; 104, plug column; 2, support plate; 201, spring shaft; 202, connecting plate; 203, fixing bolt; 3, support frame; 301, positioning hole; 302, through hole A; 303, through hole B; 304, rotating shaft; 305, display frame; 306, guide rod; 307, nut; 308, reinforcement plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-Figure 6 As shown, a foldable sofa bed frame includes: a base 1, the main body of the base 1 is arranged horizontally, and the base 1 is provided at two locations, the two bases 1 are arranged opposite to each other, and the inner sides of the two bases 1 are also fixedly connected with beams 101, the beams 101 are arranged longitudinally, and the beams 101 are provided at two locations, the two beams 101 are fixedly connected to the inner sides of the two bases 1 in a linear array, and the beams 101 and the base 1 are arranged vertically, and spring shafts 201 are installed on the top surfaces of the two bases 1, the spring shaft 201 is rotatably connected to the base 1, and the spring shaft 201 is a pull-up and lifting structure, the outer side of the spring shaft 201 is fixedly connected with a connecting plate 202, the connecting plate 202 is horizontal under normal conditions, and is arranged parallel to the base 1, the outer side of the plug column 104 is sleeved with a support plate 2, and the support plate 2 A positioning hole 301 is opened inside, and two positioning holes 301 are opened inside each support plate 2 in a linear array, and a rotating shaft 304 is fixedly connected to the side of the support frame 3 close to the side plate 103, the diameter of the rotating shaft 304 is larger than the diameter of the support frame 3, and the support frame 3 is rotatably connected to the inner side of the side plate 103 through the rotating shaft 304 fixedly connected on its outer side, and the interior of the support frame 3 is also rotatably connected to the exhibition frame 3, the main body of the exhibition frame 305 is a rectangular frame structure, and the outer side of the exhibition frame 305 is also fixedly connected to a guide rod 306, the outer side of the guide rod 306 is provided with external threads on both the front and rear sides of the outer circumference, and a nut 307 is screwed on the outer side of the external thread, and two reinforcing plates 308 are staggered and fixedly connected to the interior of each exhibition frame 305, and the reinforcing plates 308 are arranged in an X shape.

[0024] Among them, there are four connecting plates 202 in total, wherein every two laterally adjacent connecting plates 202 form a group, and the two groups of connecting plates 202 are installed oppositely on the top surfaces of the two bases 1, and a through hole is opened on the side of the connecting plate 202 away from the spring shaft 201, and a fixing bolt 203 is screwed inside the through hole, and the fixing bolt 203 and the connecting plate 202 together constitute a connecting structure, and the top surfaces of the two bases 1 are provided with a notch, and the interior of the notch is fixedly connected with a partition 102 in a linear array, the partition 102 and the base 1 are vertically arranged, and the partition 102 is arranged at equal intervals, and the partition 102 and the base 1 together constitute a partition structure for the connecting plate 202, and the interior of the notch opened on the top surface of the base 1 is fixedly connected with a plug column 104.

[0025] Among them, the main body of the column 104 is a cylindrical structure, and the column 104 is separated by a partition 102 fixedly connected to the top surface of the base 1, and the outer side of the base 1 is fixedly connected with a side panel 103, the side panel 103 and the base 1 are vertically arranged, and there are four side panels 103 in total, wherein every two laterally adjacent side panels 103 form a group, and the two groups of side panels 103 are respectively fixedly connected to the left and right side positions of the two bases 1, and the side panels 103 and the base 1 together form a connecting structure, and the inner sides of the two groups of side panels 103 are also rotatably connected to the support frame 3, the main body of the support frame 3 is a rectangular frame structure, and the interior of the support frame 3 is provided with two through holes A302 and a through hole B303 in a linear array, and the through hole A302 and the through hole B303 are vertically arranged.

[0026] When in use, when the sofa bed frame is in use, when it is needed to be used as a small sofa, the two support frames 3 installed in the two sets of side panels 103 can be turned outward and unfolded, and after the two support frames 3 are unfolded, the support plate 2 can be assembled to the outer position of the plug column 104 fixedly connected to the top surface of the base 1 by using the positioning hole 301 opened inside, and then the connecting plate 202 is rotated around the spring shaft 201, so that the screw hole opened in the connecting plate 202 is rotated to the top of the through hole A302, and the fixing bolt 203 is sequentially passed through the connecting plate 202 and the through hole A302 opened in the support frame 3 to achieve the support connection of the support frame 3;

[0027] When the current bed frame needs to be expanded, the support frame 3 in the vertical state can be further folded outward, and after the support frame 3 is flipped outward, it can be set until the support frame 3 and the base 1 are in a parallel state. At this time, the display frame 305 and the reinforcement plate 308 installed in the support frame 3 are flipped and unfolded, so that the display frame 305 and the support frame 3 are kept in a vertical state for use. At this time, the nut 307 is screwed to the outer position of the guide rod 306 to achieve limited support for the display frame 305.

[0028] In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foldable sofa bed frame, characterized in that: The invention comprises a base (1), wherein the main body of the base (1) is arranged horizontally, and the base (1) is provided at two locations, the two bases (1) are arranged opposite to each other, and the inner sides of the two bases (1) are also fixedly connected with a crossbeam (101), the crossbeam (101) is arranged longitudinally, and the crossbeam (101) is provided at two locations, the two crossbeams (101) are fixedly connected to the inner sides of the two bases (1) in a linear array, and the crossbeam (101) and the base (1) are arranged vertically, and the top surfaces of the two bases (1) are both provided with a spring shaft (201), the spring shaft (201) and the base (1) are rotatably connected, and the spring shaft (201) is a pull-up structure, and the outer side of the spring shaft (201) is fixedly connected with a connecting plate (202), and the connecting plate (202) is horizontal in a normal state and is arranged parallel to the base (1).

2. A foldable sofa bed frame according to claim 1, characterized in that: The connecting plates (202) are provided at four locations in total, wherein two connecting plates (202) adjacent to each other in transverse direction form a group, and the two groups of connecting plates (202) are mounted on the top surfaces of the two bases (1) in an opposite manner, and a through hole is provided on a side of the connecting plate (202) away from the spring shaft (201), a fixing bolt (203) is screwed into the interior of the through hole, and the fixing bolt (203) and the connecting plate (202) together form a connecting structure.

3. The foldable sofa bed frame according to claim 1, characterized in that: The top surfaces of the two bases (1) are provided with notches, the interior of the notches is fixedly connected with partitions (102) in a linear array, the partitions (102) and the base (1) are arranged vertically, and the partitions (102) are arranged at equal intervals, the partitions (102) and the base (1) together form a partition structure for the connecting plate (202), and the interior of the notches provided on the top surface of the base (1) is fixedly connected with plug posts (104).

4. A foldable sofa bed frame according to claim 3, characterized in that: The main body of the plug post (104) is a cylindrical structure, and the plug post (104) is separated by a partition (102) fixedly connected to the top surface of the base (1), and the outer side of the base (1) is fixedly connected to a side plate (103), the side plate (103) and the base (1) are vertically arranged, and there are four side plates (103) in total, wherein every two laterally adjacent side plates (103) form a group.

5. The foldable sofa bed frame according to claim 4, characterized in that: The two groups of side panels (103) are respectively fixedly connected to the left and right side surfaces of the two bases (1); the side panels (103) and the base (1) together form a connection structure; the inner sides of the two groups of side panels (103) are also rotatably connected to a support frame (3); the main body of the support frame (3) is a rectangular frame structure; and the interior of the support frame (3) is provided with two through holes A (302) and through holes B (303) in a linear array; the through holes A (302) and the through holes B (303) are vertically arranged.

6. The foldable sofa bed frame according to claim 3, characterized in that: The outer side of the plug post (104) is sleeved with a support plate (2), and a positioning hole (301) is provided inside the support plate (2), and two positioning holes (301) are provided inside each support plate (2) in a linear array, and a rotating shaft (304) is fixedly connected to one side of the support frame (3) close to the side plate (103), and the diameter of the rotating shaft (304) is larger than the diameter of the support frame (3), and the support frame (3) is rotatably connected to the side plate (103) through the rotating shaft (304) fixedly connected to the outer side surface thereof. 3), and the interior of the support frame (3) is also rotatably connected to an exhibition frame (305), the main body of the exhibition frame (305) is a rectangular frame structure, and the outside of the exhibition frame (305) is also fixedly connected to a guide rod (306), the outer circumference of the guide rod (306) is provided with external threads on both the front and rear sides, the outer side of the external thread is screwed with a nut (307), and the interior of each exhibition frame (305) is staggered and fixedly connected with two reinforcing plates (308), and the reinforcing plates (308) are arranged in an X shape.

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