Wooden sofa bed frame folding mechanism

Abstract

The utility model provides a wooden sofa bed frame folding mechanism, and relates to the technical field of sofa bed frame folding. A wooden sofa bed frame folding mechanism comprises a backrest, a left armrest and a right armrest, a left rear leg and a right rear leg are installed at the two ends of the backrest respectively, the left armrest comprises an upper left crosspiece, a lower left crosspiece, a left front leg, an upper left connecting plate and a lower left connecting plate, the upper left connecting plate and the lower left connecting plate are both installed on the left rear leg, and the lower left connecting plate is installed on the lower left crosspiece. The left upper crosspiece and the left upper connecting plate are hinged through a door hinge, the left lower crosspiece and the left upper connecting plate are hinged through a door hinge, and the right armrest comprises a right upper crosspiece, a right lower crosspiece, a right front leg, a right upper connecting plate and a right lower connecting plate. By arranging the left and right armrests which can be folded and stored, the armrests are parallel to the backrest, the occupied space of the whole bed frame is reduced, and the bed frame has the advantages of being convenient to store, transport and carry, flexible to use, good in practicability and the like.

Description

Technical Field

[0001] The utility model relates to a bed frame folding mechanism, in particular to a wooden sofa bed frame folding mechanism, belonging to the technical field of sofa bed frame folding. 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.

[0003] Chinese patent publication number CN202932473U discloses a dual-purpose sofa bed frame, including a backrest, a front seat frame and a rear seat frame. The backrest is connected to the rear seat frame, and the front seat frame and the rear seat frame are cross-connected by a support frame. The front seat frame can be slid and pulled on the support frame, and the support frame is fixedly connected to the backrest and the rear seat frame.

[0004] However, the inventor of the above device believes that there are certain defects. The backrest and backrest armrests in the above device adopt an integrated structure. The backrest and the armrests on both sides occupy a large area, which is inconvenient for storage and transportation. Therefore, the utility model provides a wooden sofa bed frame folding mechanism. Utility Model Content

[0005] (1) Technical problems solved

[0006] The purpose of the present utility model is to provide a folding mechanism for a wooden sofa bed frame in order to solve the above problems, so as to solve the problem in the prior art that the backrest and the armrests on both sides occupy a large area and are inconvenient to store and transport.

[0007] (2) Technical solution

[0008] The utility model is realized through the following technical solutions: a wooden sofa bed frame folding mechanism, comprising a backrest, a left armrest and a right armrest, wherein the two ends of the backrest are respectively equipped with a left rear leg and a right backrest, the left armrest comprises a left upper cross bar, a left lower cross bar, a left front leg, a left upper connecting plate and a left lower connecting plate, the left upper connecting plate and the left lower connecting plate are both installed on the left rear leg, the left upper cross bar and the left upper connecting plate are hingedly connected by a door hinge, the left lower cross bar and the left lower connecting plate are hingedly connected by a door hinge, the right armrest comprises a right upper cross bar, a right lower cross bar, a right front leg, a right upper connecting plate and a right lower connecting plate, the right lower connecting plate and the right upper connecting plate are both installed on the right backrest, the right upper cross bar and the right upper connecting plate are hingedly connected by a door hinge, and the right lower cross bar and the right lower connecting plate are hingedly connected by a door hinge.

[0009] Preferably, a bottom back plate is connected between the left rear leg and the right rear leg by a mortise and tenon structure, the bottom back plate is arranged below the backrest, a back center column is provided between the backrest and the bottom back plate, and both ends of the back center column are respectively connected to the backrest and the bottom back plate by bolts, and the bottom back plate and the backrest are connected and combined by the provided back center column.

[0010] Preferably, the upper left crossbar and the lower left crossbar are connected to the left front leg through a mortise and tenon structure, and the upper right crossbar and the lower right crossbar are connected to the right front leg through a mortise and tenon structure. The mortise and tenon mechanism facilitates quick assembly and connection of the armrests.

[0011] Preferably, one end of the upper left connecting plate, one end of the lower left connecting plate, one end of the upper left cross bar, one end of the lower left cross bar, one end of the upper right connecting plate, one end of the lower right connecting plate, one end of the upper right cross bar and one end of the lower right cross bar are all provided with placement grooves for placing door hinges. The placement grooves can completely hide the door hinges when the armrest is opened, making the appearance of the entire armrest very simple.

[0012] Preferably, slots are provided on the upper parts of the outer surfaces of the left rear leg and the right rear leg, and the two ends of the backrest are respectively inserted into the inside of the two slots. The provided slots facilitate the quick installation of the backrest between the left rear leg and the right rear leg.

[0013] Preferably, the upper left connecting plate and the lower left connecting plate are connected to the left rear leg through a mortise and tenon structure, and the upper right connecting plate and the lower right connecting plate are connected to the right rear leg through a mortise and tenon structure. The mortise and tenon structure is used to install the left armrest and the right armrest on the left rear leg and the right rear leg respectively, thereby improving the convenience of installation.

[0014] Preferably, the door hinge is a stainless steel hinge, and the use of stainless steel door hinges improves the corrosion resistance of the door hinges.

[0015] The utility model provides a folding mechanism for a wooden sofa bed frame, which has the following beneficial effects:

[0016] 1. The device is equipped with foldable left and right armrests, which make the armrests parallel to the backrest, reducing the overall space occupied by the bed frame, facilitating the storage and transportation of the bed frame, and has the advantages of flexible use and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional assembly diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the opening of the utility model;

[0019] Figure 3 This is a schematic diagram of the folding of the utility model;

[0020] Figure 4 This is a three-dimensional diagram of the door hinge structure of the present invention.

[0021]

Main component symbol description

[0022] 1. Backrest; 2. Bottom back panel; 3. Left rear leg; 4. Left front leg; 5. Left lower crossbar; 6. Left lower connecting plate; 7. Left upper crossbar; 8. Left upper connecting plate; 9. Back center column; 10. Right front leg; 11. Right rear leg; 12. Right lower crossbar; 13. Right upper crossbar; 14. Right lower connecting plate; 15. Right upper connecting plate; 16. Door hinge. DETAILED DESCRIPTION

[0023] The embodiment of the utility model provides a folding mechanism for a wooden sofa bed frame.

[0024] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A folding mechanism of a wooden sofa bed frame includes a backrest 1, a left armrest and a right armrest. The two ends of the backrest 1 are respectively installed with a left rear leg 3 and a right back leg 11. The upper parts of the outer surfaces of the left rear leg 3 and the right back leg 11 are provided with slots. The two ends of the backrest 1 are respectively inserted into the inside of the two slots. Through the two slots, the backrest 1 is installed between the left rear leg 3 and the right back leg 11. A bottom backboard 2 is connected between the left rear leg 3 and the right back leg 11 through a mortise and tenon structure. The bottom backboard 2 is provided below the backrest 1. A back center column 9 is provided between the backrest 1 and the bottom backboard 2. The two ends of the back center column 9 are respectively connected to the backrest 1 and the bottom backboard 2 by bolts. The bottom backboard 2 is connected to the backrest 1 through the provided back center column 9.

[0025] Please refer again Figure 1 、 Figure 2 、 Figure 3 and Figure 4The left handrail includes a left upper crossbar 7, a left lower crossbar 5, a left front leg 4, a left upper connecting plate 8 and a left lower connecting plate 6. The left upper connecting plate 8 and the left lower connecting plate 6 are both mounted on the left rear leg 3. The left upper connecting plate 8 and the left lower connecting plate 6 are connected to the left rear leg 3 through a mortise and tenon structure. The left upper crossbar 7 and the left upper connecting plate 8 are hinged through a door hinge 16. The left lower crossbar 5 and the left lower connecting plate 6 are hinged through a door hinge 16. The left upper crossbar 7 and the left lower crossbar 5 are hinged through a mortise and tenon structure. The left front leg 4 is connected, and each connection adopts a mortise and tenon structure to facilitate the combined connection between the components. The left front leg 4 is provided to support one end of the left armrest, and the left rear leg 3 is used to support the other end of the left armrest. The left armrest is hinged at the connection between the upper left cross bar 7 and the upper left connecting plate 8, and at the connection between the lower left cross bar 5 and the lower left connecting plate 6 through a door hinge 16, so that most of the length of the left armrest is folded to be parallel to the backrest 1, and the door hinge 16 is a hidden door hinge.

[0026] Please refer again Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The right armrest includes a right upper cross bar 13, a right lower cross bar 12, a right front leg 10, a right upper connecting plate 15 and a right lower connecting plate 14. The right lower connecting plate 14 and the right upper connecting plate 15 are both installed on the right backrest 11. The right upper cross bar 13 and the right upper connecting plate 15 are hinged by a door hinge 16, and the right lower cross bar 12 and the right lower connecting plate 14 are hinged by a door hinge 16. The right upper cross bar 13 and the right lower cross bar 12 are connected to the right front leg 10 through a mortise and tenon structure, and the right upper connecting plate 15 and the right lower connecting plate 14 are connected to the right backrest 11 through a mortise and tenon structure. The right armrest has the same structure and principle as the left armrest, and can be folded to be parallel to the backrest 1 to reduce the overall space occupied by the device.

[0027] The mortise and tenon structure is a concave and convex connection method used on two wooden components. The convex part is called the tenon or tenon head; the concave part is called the mortise or mortise, the tenon and mortise bite together to play a connecting role. The mortise and tenon structure is widely used in architecture and is also widely used in furniture, reflecting the close relationship between furniture and architecture.

[0028] Please refer again Figure 1 、 Figure 2 、 Figure 3 and Figure 4One end of the upper left connecting plate 8, one end of the lower left connecting plate 6, one end of the upper left cross bar 7, one end of the lower left cross bar 5, one end of the upper right connecting plate 15, one end of the lower right connecting plate 14, one end of the upper right cross bar 13 and one end of the lower right cross bar 12 are all provided with a placement groove for placing the door hinge 16. The two placement grooves are combined to completely hide the door hinge 16, making the appearance of the entire handrail very simple. The door hinge 16 is a stainless steel hinge. The use of stainless steel door hinge 16 improves the corrosion resistance of the door hinge 16.

[0029] Working principle: By rotating the upper left cross bar 7 and the upper right cross bar 13 toward one side of the backrest 1, the left armrest and the right armrest are folded and stored until they are parallel to the backrest 1, reducing the overall space occupied by the device for easy storage and transportation. Most structures are connected by mortise and tenon structure, which improves the convenience of installation and assembly.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A folding mechanism for a wooden sofa bed frame, comprising a backrest (1), a left armrest and a right armrest, characterized in that: The two ends of the backrest (1) are respectively equipped with a left rear leg (3) and a right rear leg (11), and the left armrest comprises a left upper crossbar (7), a left lower crossbar (5), a left front leg (4), a left upper connecting plate (8) and a left lower connecting plate (6), and the left upper connecting plate (8) and the left lower connecting plate (6) are both installed on the left rear leg (3), the left upper crossbar (7) and the left upper connecting plate (8) are hinged by a door hinge (16), and the left lower crossbar (5) and the left lower connecting plate (6) are hinged by a door hinge. The right handrail comprises a right upper crossbar (13), a right lower crossbar (12), a right front leg (10), a right upper connecting plate (15) and a right lower connecting plate (14). The right lower connecting plate (14) and the right upper connecting plate (15) are both mounted on the right backrest (11). The right upper crossbar (13) and the right upper connecting plate (15) are hingedly connected via a door hinge (16). The right lower crossbar (12) and the right lower connecting plate (14) are hingedly connected via a door hinge (16).

2. A wooden sofa bed frame folding mechanism according to claim 1, characterized in that: A bottom back plate (2) is connected between the left rear leg (3) and the right rear leg (11) via a mortise and tenon structure. The bottom back plate (2) is arranged below the backrest (1). A back center column (9) is provided between the backrest (1) and the bottom back plate (2). The two ends of the back center column (9) are respectively connected to the backrest (1) and the bottom back plate (2) via bolts.

3. The wooden sofa bed frame folding mechanism according to claim 1, characterized in that: The upper left crossbar (7) and the lower left crossbar (5) are connected to the left front leg (4) through a mortise and tenon structure, and the upper right crossbar (13) and the lower right crossbar (12) are connected to the right front leg (10) through a mortise and tenon structure.

4. The wooden sofa bed frame folding mechanism according to claim 1, characterized in that: One end of the upper left connecting plate (8), one end of the lower left connecting plate (6), one end of the upper left cross piece (7), one end of the lower left cross piece (5), one end of the upper right connecting plate (15), one end of the lower right connecting plate (14), one end of the upper right cross piece (13) and one end of the lower right cross piece (12) are all provided with a placement groove for placing the door hinge (16).

5. The wooden sofa bed frame folding mechanism according to claim 1, characterized in that: The upper parts of the outer surfaces of the left rear leg (3) and the right rear leg (11) are both provided with slots, and the two ends of the backrest (1) are respectively inserted into the inside of the two slots.

6. The wooden sofa bed frame folding mechanism according to claim 1, characterized in that: The upper left connecting plate (8) and the lower left connecting plate (6) are connected to the left rear leg (3) through a mortise and tenon structure, and the upper right connecting plate (15) and the lower right connecting plate (14) are connected to the right rear leg (11) through a mortise and tenon structure.

7. The wooden sofa bed frame folding mechanism according to claim 1, characterized in that: The door hinge (16) is a stainless steel hinge.

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