Foldable multifunctional sofa bed

Abstract

The utility model discloses a foldable multifunctional sofa bed which comprises a walking seat and a supporting table, the supporting table is arranged at the top end of the walking seat, a sofa bed base is arranged at the top end of the supporting table, and a backrest frame is arranged on the outer wall of the sofa bed base. Second supporting shafts are symmetrically installed at the ends, close to the sofa bed base, of the backrest frames, the backrest frames are movably connected with the sofa bed base through the second supporting shafts, movable frames are arranged on the outer walls of the backrest frames, and first movable shafts are installed on the sides, close to the backrest frames, of the movable frames; and the movable frame is movably connected with the backrest frame through a first movable shaft. According to the multifunctional sofa bed, convenient folding storage and unfolding are achieved, state conversion of the multifunctional sofa bed is facilitated, height control and adjustment are facilitated, multi-position rotation is facilitated, and the rotation flexibility of the multifunctional sofa bed is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of multifunctional sofa beds, and specifically relates to a foldable multifunctional sofa bed. Background Art

[0002] A sofa bed is a piece of furniture that can be used as both a sofa and a bed, with the dual functions of a sofa and a bed, that is, it can be used for sitting and lying. The design of this kind of furniture aims to meet the simplicity and versatility of modern living room layout, and is especially suitable for small-sized living rooms to meet the needs of occasional visitors. Usually, the sofa bed can be placed in the living room or study to serve as a seat. A sofa bed is a piece of furniture that combines practicality and versatility. Whether used as a sofa or a bed, it can add comfort and convenience to home life, and is especially suitable for small-sized families with limited space.

[0003] As disclosed in a foldable multifunctional sofa bed with the authorization announcement number CN213247929U, it includes a base. Four corners of the bottom of the base are provided with feet, and armrests are provided on both sides of the base. A backrest is rotatably connected to the end face of the base through a hinge, and notches matching the armrests are provided on both sides of the backrest. This foldable multifunctional sofa bed can form a sofa bed by setting a rotatable backrest, or the backrest can be folded on the top of the base to be used as a desk. And through the heating tube provided, it ensures that in cold weather, a comfortable working environment can be brought to the user. When the airbag is inflated, it can be used as a pillow for the user to rest;

[0004] Although it has a relatively reasonable design and is multifunctional and diverse, which is worthy of enterprise production and popularization in society, it does not solve the problems that the existing multifunctional sofa beds are not convenient for folding, storing, unfolding, state conversion, height control adjustment, and multi-position rotation during use, which greatly affects the flexibility of the rotation of the multifunctional sofa bed. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a foldable multifunctional sofa bed to solve the problems raised in the above background art that the multifunctional sofa bed is not convenient for folding, storing, unfolding, state conversion, height control adjustment, and multi-position rotation during use, which affects the flexibility of the rotation of the multifunctional sofa bed.

[0006] To achieve the above object, the present utility model provides the following technical solution: A foldable multi-functional sofa bed, comprising a walking seat and a support platform. A support platform is provided at the top of the walking seat. A sofa bed base is provided at the top of the support platform. A backrest frame is provided on the outer wall of the sofa bed base. Second support shafts are symmetrically installed at one end of the backrest frame close to the sofa bed base, and the backrest frames are all movably connected to the sofa bed base through the second support shafts. An activity frame is provided on the outer wall of the backrest frame. A first activity shaft is installed on one side of the activity frame close to the backrest frame, and the activity frame is movably connected to the backrest frame through the first activity shaft. A plurality of groups of equally spaced card slots are symmetrically provided on the outer wall of the activity frame. A first support shaft is installed inside the sofa bed base below the activity frame, and the first support shafts are all movably connected to the card slots. Armrest frames are symmetrically provided on the outer wall of the backrest frame below the activity frame. Second activity shafts are installed at one end of each armrest frame close to the backrest frame, and the armrest frames are all movably connected to the backrest frame through the second activity shafts. Slide groove arms are provided on the outer wall of the sofa bed base below the armrest frames. Third support shafts are installed on the outer wall of the sofa bed base on one side of the slide groove arms, and the slide groove arms are all movably connected to the sofa bed base through the third support shafts. Third activity shafts are installed at one end of each slide groove arm close to the armrest frame, and the slide groove arms are all movably connected to the armrest frames through the third activity shafts.

[0007] Preferably, a support frame is provided at one end of the outer wall of the sofa bed base away from the backrest frame. Bolts are symmetrically provided on the outer wall of the support frame, and the bolts all extend into the interior of the sofa bed base through the support frame.

[0008] Preferably, an electric push rod is movably installed inside the walking seat. An adjusting rod is installed at the output end of the electric push rod. A second connecting frame is provided at the top of the walking seat on one side of the adjusting rod, and the adjusting rod is movably connected to the second connecting frame. A first linkage shaft is installed at one end of the second connecting frame close to the walking seat, and the second connecting frame is movably connected to the walking seat through the first linkage shaft.

[0009] Preferably, second sliding wheels are symmetrically installed at the top of the second connecting frame, and the second sliding wheels are all slidably connected to the support platform.

[0010] Preferably, a first connecting frame is provided at the top of the walking seat on one side of the second connecting frame. A connecting shaft is installed on the outer wall of the first connecting frame, and the first connecting frame is movably connected to the second connecting frame through the connecting shaft.

[0011] Preferably, first sliding wheels are symmetrically installed at the bottom of the first connecting frame, and the first sliding wheels are all slidably connected to the walking seat. A second linkage shaft is installed at the top of the first connecting frame, and the first connecting frame is movably connected to the support platform through the second linkage shaft.

[0012] Preferably, a support box is installed at the top of the support platform. A servo motor is installed inside the support box. A rotating shaft is movably installed inside the support box on one side of the servo motor, and the rotating shaft extends to the outside of the support box and is connected to the sofa bed base. An output end of the servo motor is installed with a worm, and a worm gear is installed on the surface of the rotating shaft on one side of the worm, and the worm is meshed with the worm gear.

[0013] Preferably, a control panel is installed on the outer wall of the walking seat, and an output end of the control panel is electrically connected to input ends of the servo motor and the electric push rod.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: This multifunctional sofa bed not only realizes convenient folding, storage and unfolding, facilitates the state conversion of the multifunctional sofa bed, facilitates height control and adjustment, but also facilitates multi-position rotation, and improves the rotation flexibility of the multifunctional sofa bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0016] Figure 2 is a three-dimensional structure schematic diagram of the first connecting frame of the present utility model;

[0017] Figure 3 is a front view structure schematic diagram of the present utility model;

[0018] Figure 4 is a front view sectional structure schematic diagram of the walking seat of the present utility model;

[0019] Figure 5 is of the present utility model Figure 4 enlarged structure schematic diagram at position A.

[0020] In the figure: 1, walking seat; 2, support platform; 3, sofa bed base; 4, support frame; 5, backrest frame; 6, movable frame; 7, first movable shaft; 8, card slot; 9, first support shaft; 10, armrest frame; 11, chute arm; 12, second movable shaft; 13, third movable shaft; 14, second support shaft; 15, third support shaft; 16, bolt; 17, control panel; 18, support box; 19, servo motor; 20, worm; 21, worm gear; 22, rotating shaft; 23, first connecting frame; 24, second connecting frame; 25, electric push rod; 26, adjusting rod; 27, connecting shaft; 28, first linkage shaft; 29, first sliding wheel; 30, second linkage shaft; 31, second sliding wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To further elaborate on the technical means and effects adopted by the present utility model to achieve the intended utility model purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, elaborate in detail on the specific implementation manner, structure, features, and effects of the present utility model as follows.

[0022] Please refer to Figures 1-5 , an embodiment provided by the present utility model: a foldable multi-functional sofa bed, including a walking seat 1 and a support platform 2. A support platform 2 is provided at the top of the walking seat 1. A sofa bed base 3 is provided at the top of the support platform 2. A backrest frame 5 is provided on the outer wall of the sofa bed base 3. Second support shafts 14 are symmetrically installed at one end of the backrest frame 5 close to the sofa bed base 3, and the backrest frame 5 is movably connected to the sofa bed base 3 through the second support shafts 14. An activity frame 6 is provided on the outer wall of the backrest frame 5. A first activity shaft 7 is installed on one side of the activity frame 6 close to the backrest frame 5, and the activity frame 6 is movably connected to the backrest frame 5 through the first activity shaft 7. A plurality of groups of equally spaced card slots 8 are symmetrically provided on the outer wall of the activity frame 6. A first support shaft 9 is installed inside the sofa bed base 3 below the activity frame 6, and the first support shaft 9 is movably connected to the card slots 8. Armrest frames 10 are symmetrically provided on the outer wall of the backrest frame 5 below the activity frame 6. Second activity shafts 12 are installed at one end of the armrest frames 10 close to the backrest frame 5, and the armrest frames 10 are movably connected to the backrest frame 5 through the second activity shafts 12. Slide groove arms 11 are provided on the outer wall of the sofa bed base 3 below the armrest frames 10. Third support shafts 15 are installed on the outer wall of the sofa bed base 3 on one side of the slide groove arms 11, and the slide groove arms 11 are movably connected to the sofa bed base 3 through the third support shafts 15. Third activity shafts 13 are installed at one end of the slide groove arms 11 close to the armrest frames 10, and the slide groove arms 11 are movably connected to the armrest frames 10 through the third activity shafts 13. A support frame 4 is provided at one end of the outer wall of the sofa bed base 3 away from the backrest frame 5. Bolts 16 are symmetrically provided on the outer wall of the support frame 4, and the bolts 16 extend into the interior of the sofa bed base 3 through the support frame 4;

[0023] When in use, connect to an external power supply. First, move the walking base 1 to a designated position by pushing. When it is necessary to transform the sofa bed into a state convenient for lying down, rotate the support frame 4 by operating. When the support frame 4 rotates to be parallel to the sofa bed base 3, fix the support frame 4 on the surface of the sofa bed base 3 by operating the rotating bolt 16 to prevent the support frame 4 from shaking. Rotate the movable frame 6 by operating. Supported by the backrest frame 5, the movable frame 6 rotates around the first movable shaft 7. Under the sliding support of the card slot 8 and the first support shaft 9, the first support shaft 9 is inserted into the interior of different card slots 8. Driven by the card slot 8, the movable frame 6 moves, and the movable frame 6 drives the backrest frame 5 to rotate around the second support shaft 14 on the surface of the sofa bed base 3 to adjust the inclination of the backrest frame 5. Under the movable support of the third movable shaft 13 and the sliding support of the chute arm 11 and the third support shaft 15, the chute arm 11 drives the armrest frame 10 to rotate, and the armrest frame 10 rotates around the second movable shaft 12. The armrest frame 10 protects the lying human body to facilitate the human body to lie down and relax. When it is necessary to sit up, operate the bolt 16 to rotate reversely on the surface of the sofa bed base 3 to change the bolt 16 from the tightened state to the loosened state, which facilitates the rotation of the support frame 4 and enables the human feet to touch the ground. By operating the card slot 8 to drive the movable frame 6 to reversely clamp on the surface of the first support shaft 9, the movable frame 6 provides reverse rotational support for the backrest frame 5, which facilitates the backrest frame 5 to support the human body and facilitates the folding and state transformation of the sofa bed. When the human body leaves, the second support shaft 14 drives the backrest frame 5 to slide on the surface of the sofa bed base 3 to fold the entire backrest frame 5 to the top of the sofa bed base 3, reducing the overall occupied space of the backrest frame 5 and facilitating storage. It realizes the convenient folding, storage and unfolding of the multifunctional sofa bed, facilitates the state conversion of the multifunctional sofa bed, reduces the space occupation, and improves the convenience of the function conversion of the multifunctional sofa bed;

[0024] An electric push rod 25 is installed inside the walking seat 1 movably. The electric push rod 25 plays a role in power output. An adjusting rod 26 is installed at the output end of the electric push rod 25. A second connecting frame 24 is arranged at the top end of the walking seat 1 on one side of the adjusting rod 26. And the adjusting rod 26 is movably connected with the second connecting frame 24. A first linkage shaft 28 is installed at one end of the second connecting frame 24 close to the walking seat 1. And the second connecting frame 24 is movably connected with the walking seat 1 through the first linkage shaft 28. Second sliding wheels 31 are symmetrically installed at the top end of the second connecting frame 24. And all the second sliding wheels 31 are slidably connected with the support platform 2. A first connecting frame 23 is arranged at the top end of the walking seat 1 on one side of the second connecting frame 24. A connecting shaft 27 is installed on the outer wall of the first connecting frame 23. And the first connecting frame 23 is movably connected with the second connecting frame 24 through the connecting shaft 27. First sliding wheels 29 are symmetrically installed at the bottom end of the first connecting frame 23. And all the first sliding wheels 29 are slidably connected with the walking seat 1. A second linkage shaft 30 is installed at the top end of the first connecting frame 23. And the first connecting frame 23 is movably connected with the support platform 2 through the second linkage shaft 30. A support box 18 is installed at the top end of the support platform 2. A servo motor 19 is installed inside the support box 18. The servo motor 19 plays a role in power output. A rotating shaft 22 is installed movably inside the support box 18 on one side of the servo motor 19. And the rotating shaft 22 extends to the outside of the support box 18 and is connected with the sofa bed base 3. An output end of the servo motor 19 is installed with a worm 20. A worm gear 21 is installed on the surface of the rotating shaft 22 on one side of the worm 20. And the worm 20 is meshed with the worm gear 21. A control panel 17 is installed on the outer wall of the walking seat 1. An output end of the control panel 17 is electrically connected with input ends of the servo motor 19 and the electric push rod 25;

[0025] During use, the electric push rod 25 is opened by operating the control panel 17. Supported by the walking seat 1, the electric push rod 25 drives the adjusting rod 26 to move. The adjusting rod 26 drives the second connecting frame 24 to rotate. Supported by the movable support of the first linkage shaft 28, the second connecting frame 24 slides inside the support table 2 through the second sliding wheel 31. The second connecting frame 24 drives the first connecting frame 23 to rotate through the connecting shaft 27. Supported by the movable support of the second linkage shaft 30, the first sliding wheel 29 drives the first connecting frame 23 to slide inside the walking seat 1. The second connecting frame 24 and the first connecting frame 23 drive the overall height adjustment of the support table 2. The support table 2 drives the support box 18 to adjust the height. The support box 18 drives the sofa bed base 3, the support frame 4, and the backrest frame 5 to adjust the height through the rotating shaft 22 to conveniently adapt to the needs of people at different heights. The servo motor 19 is opened by operating the control panel 17. Supported by the support box 18, the servo motor 19 drives the worm 20 to rotate. Under the meshing action of the worm 20 and the worm wheel 21, the worm 20 drives the worm wheel 21 to rotate. The worm wheel 21 drives the rotating shaft 22 to rotate. The rotating shaft 22 drives the sofa bed base 3, the support frame 4, and the backrest frame 5 to rotate to conveniently rotate the sofa bed base 3, the support frame 4, and the backrest frame 5 to multiple positions to facilitate people to sit and rest from different positions. It realizes the convenient height control adjustment of the multifunctional sofa bed, facilitates the rotation to multiple positions, facilitates people at different positions to sit and rest, and improves the flexibility of the rotation of the multifunctional sofa bed.

[0026] Working principle: When in use, connect to an external power supply. First, move the walking base 1 to the designated position by pushing. When it is necessary to convert the sofa bed into a state convenient for lying down, operate the support frame 4 to rotate. When the support frame 4 rotates to be parallel to the sofa bed base 3, operate the rotating bolt 16 to fix the support frame 4 on the surface of the sofa bed base 3 to prevent the support frame 4 from shaking. Operate the movable frame 6 to rotate. The movable frame 6 rotates around the first movable shaft 7 to engage the first support shaft 9 into the interiors of different slots 8. The slots 8 drive the movable frame 6 to move, and the movable frame 6 drives the backrest frame 5 to rotate around the second support shaft 14 on the surface of the sofa bed base 3 to adjust the inclination of the backrest frame 5. The chute arm 11 drives the armrest frame 10 to rotate. The armrest frame 10 rotates around the second movable shaft 12 to protect the lying human body and facilitate the human body to lie down and relax. When it is necessary to sit up, operate the bolt 16 to rotate reversely on the surface of the sofa bed base 3 to change the bolt 16 from the tightened state to the loosened state, facilitating the rotation of the support frame 4 and allowing the human feet to touch the ground. Operate the slots 8 to drive the movable frame 6 to reversely engage on the surface of the first support shaft 9, enabling the movable frame 6 to reversely support the backrest frame 5 and facilitating the backrest frame 5 to support the human body, thus facilitating the folding and transformation of the sofa bed. When the human body leaves, the second support shaft 14 drives the backrest frame 5 to slide on the surface of the sofa bed base 3, folding the entire backrest frame 5 to the top of the sofa bed base 3 to reduce the overall occupied space of the backrest frame 5 and facilitate storage. The electric push rod 25 drives the adjusting rod 26 to move. The adjusting rod 26 drives the second connecting frame 24 to rotate. The second connecting frame 24 slides inside the support platform 2 through the second sliding wheel 31. The second connecting frame 24 drives the first connecting frame 23 to rotate through the connecting shaft 27. The first sliding wheel 29 drives the first connecting frame 23 to slide inside the walking base 1. The second connecting frame 24 and the first connecting frame 23 drive the entire support platform 2 to adjust its height. The support platform 2 drives the support box 18 to adjust its height. The support box 18 drives the sofa bed base 3, the support frame 4, and the backrest frame 5 to adjust their heights through the rotating shaft 22 to facilitate adapting to the needs of people of different heights. The servo motor 19 drives the worm 20 to rotate. The worm 20 drives the worm gear 21 to rotate. The worm gear 21 drives the rotating shaft 22 to rotate. The rotating shaft 22 drives the sofa bed base 3, the support frame 4, and the backrest frame 5 to rotate, facilitating the multi-position rotation of the sofa bed base 3, the support frame 4, and the backrest frame 5 and allowing people to sit and rest from different positions, thus completing the use of the multifunctional sofa bed.

[0027] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments with equivalent changes within the scope of the technical solution of the present utility model by using the above-disclosed technical content. However, as long as it does not depart from the content of the technical solution of the present utility model, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A foldable multifunctional sofa bed, comprising a walking seat (1) and a support platform (2), characterized in that: A support platform (2) is arranged at the top of the walking seat (1), a sofa bed base (3) is arranged at the top of the support platform (2), a backrest frame (5) is arranged on the outer wall of the sofa bed base (3), a second support shaft (14) is symmetrically mounted on one end of the backrest frame (5) close to the sofa bed base (3), and the backrest frame (5) is movably connected to the sofa bed base (3) through the second support shaft (14), a movable frame (6) is arranged on the outer wall of the backrest frame (5), a first movable shaft (7) is mounted on one side of the movable frame (6) close to the backrest frame (5), and the movable frame (6) is movably connected to the backrest frame (5) through the first movable shaft (7), a plurality of groups of slots (8) are symmetrically arranged at equal intervals on the outer wall of the movable frame (6), a first support shaft (9) is mounted inside the sofa bed base (3) below the movable frame (6), and the first support shaft ( 9) are movably connected to the card slot (8); an armrest frame (10) is symmetrically arranged on the outer wall of the backrest frame (5) below the movable frame (6); a second movable shaft (12) is installed at one end of the armrest frame (10) close to the backrest frame (5), and the armrest frame (10) is movably connected to the backrest frame (5) through the second movable shaft (12); a slide arm (11) is arranged on the outer wall of the sofa bed base (3) below the armrest frame (10); a third support shaft (15) is installed on the outer wall of the sofa bed base (3) on one side of the slide arm (11), and the slide arm (11) is movably connected to the sofa bed base (3) through the third support shaft (15); a third movable shaft (13) is installed at one end of the slide arm (11) close to the armrest frame (10), and the slide arm (11) is movably connected to the armrest frame (10) through the third movable shaft (13).

2. The foldable multifunctional sofa bed according to claim 1, characterized in that: A support frame (4) is arranged on one end of the outer wall of the sofa bed base (3) away from the backrest frame (5), and bolts (16) are symmetrically arranged on the outer wall of the support frame (4), and the bolts (16) all extend through the support frame (4) to the inside of the sofa bed base (3).

3. The foldable multifunctional sofa bed according to claim 1, characterized in that: An electric push rod (25) is movably mounted inside the walking seat (1), an adjusting rod (26) is mounted on the output end of the electric push rod (25), a second connecting frame (24) is arranged at the top end of the walking seat (1) on one side of the adjusting rod (26), and the adjusting rod (26) is movably connected to the second connecting frame (24), a first linkage shaft (28) is mounted on one end of the second connecting frame (24) close to the walking seat (1), and the second connecting frame (24) is movably connected to the walking seat (1) via the first linkage shaft (28).

4. The foldable multifunctional sofa bed according to claim 3, characterized in that: Second sliding wheels (31) are symmetrically mounted on the top of the second connecting frame (24), and the second sliding wheels (31) are all slidably connected to the support platform (2).

5. The foldable multifunctional sofa bed according to claim 4, characterized in that: A first connecting frame (23) is arranged at the top end of the walking seat (1) on one side of the second connecting frame (24), a connecting shaft (27) is mounted on the outer wall of the first connecting frame (23), and the first connecting frame (23) is movably connected to the second connecting frame (24) via the connecting shaft (27).

6. The foldable multifunctional sofa bed according to claim 5, characterized in that: The first sliding wheels (29) are symmetrically mounted on the bottom end of the first connecting frame (23), and the first sliding wheels (29) are all slidably connected to the walking seat (1). The second linkage shaft (30) is mounted on the top end of the first connecting frame (23), and the first connecting frame (23) is movably connected to the support platform (2) via the second linkage shaft (30).

7. The foldable multifunctional sofa bed according to claim 1, characterized in that: A support box (18) is installed at the top of the support platform (2), a servo motor (19) is installed inside the support box (18), a rotating shaft (22) is movably installed inside the support box (18) on one side of the servo motor (19), and the rotating shaft (22) extends to the outside of the support box (18) and is connected to the sofa bed base (3), a worm (20) is installed at the output end of the servo motor (19), a worm wheel (21) is installed on the surface of the rotating shaft (22) on one side of the worm (20), and the worm (20) and the worm wheel (21) are meshed with each other.

8. The foldable multifunctional sofa bed according to claim 7, characterized in that: A control panel (17) is mounted on the outer wall of the walking seat (1), and an output end of the control panel (17) is electrically connected to an input end of a servo motor (19) and an electric push rod (25).

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