Sofa soft bed with folding function

Abstract

The utility model discloses a sofa soft bed with a folding function, which comprises a sofa seat and a rotatable sofa backrest arranged on the left side of the sofa seat, two movable support plates are arranged on the left side of the sofa backrest, the sofa soft bed also comprises a fixed shell, the fixed shell is arranged on the left side of the front side of the sofa seat, and the fixed shell is arranged on the front side of the sofa seat. A servo motor is installed on the front face of the fixing shell, and the rear end of an output shaft of the servo motor penetrates through the fixing shell and extends into the fixing shell. The sofa backrest is driven by the servo motor to rotate, so that the sofa seat and the sofa backrest can be horizontally placed, a user can conveniently lie on the sofa seat and the sofa backrest, and the sofa achieves the soft bed effect; therefore, the stability when the sofa backrest is rotated by 90 degrees and horizontally placed is ensured, the supporting plate can be in contact with the ground to support and reinforce the sofa backrest, and the stability when the sofa is used after being changed into a soft bed is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sofa beds, in particular to a sofa bed with a folding function. Background Art

[0002] Sofas have become essential furniture for many families. Compared with ordinary chairs, sofas are more comfortable.

[0003] According to application number: CN202022005887.7, a storage structure for a sofa belongs to the field of sofa technology. It solves the technical problem of the lack of storage space in existing sofas.

[0004] The sofa in the above case only has the effect of a simple seat and cannot be used as a soft bed as needed, thereby reducing the flexibility of use. For this reason, we provide a sofa soft bed with a folding function. Utility Model Content

[0005] The purpose of the utility model is to provide a sofa bed with a folding function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a sofa bed with a folding function, comprising a sofa seat and a rotatable sofa backrest arranged on the left side of the sofa seat, wherein two movable support plates are arranged on the left side of the sofa backrest.

[0007] Preferably, it also includes a fixed shell, which is installed on the left side of the front of the sofa seat. A servo motor is installed on the front of the fixed shell. The rear end of the servo motor output shaft passes through the fixed shell and extends into the interior thereof. A drive gear is installed on the surface of the servo motor output shaft.

[0008] Preferably, a connecting shaft is rotatably connected to the groove on the front inner wall of the fixed shell through a bearing, and a driven gear that meshes with the driving gear is installed on the surface of the connecting shaft and at the position corresponding to the driving gear. The rear end of the connecting shaft passes through the fixed shell and extends to the outside thereof and is fixedly connected to the front of the sofa backrest.

[0009] Preferably, a pluggable mounting plate is provided on the left side of the sofa backrest, a connecting shell is installed on the top and bottom of the mounting plate, a rotating motor is installed on the right side of the inner wall of the connecting shell, and a threaded rod is installed on the left end of the output shaft of the rotating motor.

[0010] Preferably, a fixed plate is installed on the inner wall of the connecting shell, and a movable block is threadedly connected to the surface of the threaded rod. Two movable plates are installed on the left side of the movable block. The left side of the movable plate passes through the fixed plate and the connecting shell from right to left and extends to the outside of the connecting shell. The left sides of the two movable plates on the same side are fixedly connected to the right side of the support plate.

[0011] Preferably, two slots are provided on the right side of the mounting plate, and a clamping block is installed on the left side of the sofa backrest at a position corresponding to the slot. The left side of the clamping block passes through the slot and extends to the inside thereof and contacts the inner wall of the slot. A fastening bolt threadedly connected to the clamping block is provided on the left side of the mounting plate at a position corresponding to the clamping block.

[0012] Preferably, a reinforcement plate is installed on the back of the sofa seat, and a rotating shaft is rotatably connected to the groove on the front side of the reinforcement plate through a bearing, and the front end of the rotating shaft is fixedly connected to the back side of the sofa backrest.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model drives the sofa backrest to rotate by a servo motor, so that the sofa seat and the sofa backrest can be placed horizontally, which makes it convenient for the user to lie on the sofa seat and the sofa backrest, making the sofa realize the effect of a soft bed. The support plate is driven to move by the rotating motor, thereby ensuring the stability of the sofa backrest when it is rotated 90 degrees and placed horizontally, so that the support plate can come into contact with the ground to support and reinforce the sofa backrest, thereby improving the stability of the sofa when it is used as a soft bed.

[0015] 2. The utility model can disassemble the mounting plate and the connecting shell by fastening bolts, thereby facilitating maintenance and repair of the structure on the connecting shell and improving flexibility during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural diagram of the rear view of the utility model;

[0018] Figure 3 It is a structural cross-sectional view of the front view of the utility model;

[0019] Figure 4 This is a structural cross-sectional view of the front view of the connecting shell, buffer spring and pressure sensor of the utility model;

[0020] Figure 5 This is a structural cross-sectional view of the top view of the fixed housing, driving gear, driven gear and reinforcement plate of the utility model.

[0021] In the figure: 1 sofa seat, 2 sofa backrest, 3 support plate, 4 fixed shell, 5 servo motor, 6 driving gear, 7 connecting shaft, 8 driven gear, 9 mounting plate, 10 connecting shell, 11 rotating motor, 12 threaded rod, 13 fixed plate, 14 moving block, 15 moving plate, 16 slot, 17 block, 18 fastening bolt, 19 reinforcement plate, 20 mounting slot, 21 slide slot, 22 slider, 23 fixed rod, 24 extrusion block, 25 buffer spring, 26 pressure sensor, 27 armrest, 28 support block. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 A sofa soft bed with a folding function comprises a sofa seat 1 and a rotatable sofa backrest 2 arranged on the left side of the sofa seat 1. Two movable supporting plates 3 are arranged on the left side of the sofa backrest 2.

[0024] Furthermore, armrests 27 are fixedly connected to the front and rear sides of the top of the sofa seat 1, support blocks 28 are fixedly connected to the four corners of the bottom of the sofa seat 1, a controller is fixedly connected to the armrest 27 on the rear side, and a battery is fixedly connected to the bottom of the sofa seat 1, which supplies power to the electrical appliances.

[0025] Furthermore, the top of the sofa seat 1 and the right side of the sofa backrest 2 are both fixedly connected with cushions.

[0026] It also includes a fixed shell 4, which is installed on the left side of the front of the sofa seat 1. The front of the fixed shell 4 is fixedly connected to a servo motor 5. The rear end of the output shaft of the servo motor 5 passes through the fixed shell 4 and extends to the inside thereof. The surface of the output shaft of the servo motor 5 is fixedly connected to a driving gear 6. A connecting shaft 7 is rotatably connected to the groove on the front of the inner wall of the fixed shell 4 through a bearing. The surface of the connecting shaft 7 is fixedly connected to the position corresponding to the driving gear 6 with a driven gear 8 that meshes with the driving gear 6. The rear end of the connecting shaft 7 passes through the fixed shell 4 and extends to the outside thereof and is fixedly connected to the front of the sofa backrest 2.

[0027] The back of the sofa seat 1 is fixedly connected with a reinforcing plate 19 , and a rotating shaft is rotatably connected to the groove on the front of the reinforcing plate 19 through a bearing, and the front end of the rotating shaft is fixedly connected to the back of the sofa backrest 2 .

[0028] A pluggable mounting plate 9 is provided on the left side of the sofa backrest 2. The right side of the mounting plate 9 contacts the left side of the sofa backrest 2. The top and bottom of the mounting plate 9 are fixedly connected to a connecting shell 10. The right side of the connecting shell 10 contacts the left side of the sofa backrest 2. The right side of the inner wall of the connecting shell 10 is fixedly connected to a rotating motor 11. The left end of the output shaft of the rotating motor 11 is fixedly connected to a threaded rod 12. A fixing plate 13 is fixedly connected to the inner wall of the connecting shell 10. A bearing rotatably connected to the threaded rod 12 is fixedly connected in the groove on the right side of the fixing plate 13, thereby ensuring the stability of the threaded rod 12 during movement. The surface of the threaded rod 12 is threadedly connected to a moving block 14. The surface of the moving block 14 is in sliding contact with the inner wall of the connecting shell 10. Two moving plates 15 are fixedly connected to the left side of the moving block 14. The left side of the moving plate 15 passes through the fixing plate 13 and the connecting shell 10 from right to left and extends to the outside of the connecting shell 10. The left sides of the two moving plates 15 on the same side are fixedly connected to the right side of the support plate 3.

[0029] The servo motor 5 drives the sofa backrest 2 to rotate, so that the sofa seat 1 can be placed horizontally with the sofa backrest 2, making it convenient for the user to lie on the sofa seat 1 and the sofa backrest 2, so that the sofa can achieve the effect of a soft bed. The rotating motor 11 drives the support plate 3 to move, thereby ensuring the stability of the sofa backrest 2 when it is rotated 90 degrees and placed horizontally, so that the support plate 3 can come into contact with the ground to support and reinforce the sofa backrest 2, thereby improving the stability of the sofa when it is used as a soft bed.

[0030] Two card slots 16 are provided on the right side of the mounting plate 9. A card block 17 is fixedly connected to the left side of the sofa backrest 2 at a position corresponding to the card slot 16. The left side of the card block 17 passes through the card slot 16 and extends to the inside thereof and contacts the inner wall of the card slot 16. A fastening bolt 18 threadedly connected to the card block 17 is provided on the left side of the mounting plate 9 at a position corresponding to the card block 17.

[0031] Specifically, loosen the fastening bolt 18 and then pull the mounting plate 9 to the left. The mounting plate 9 drives the card slot 16 to move to the left and separates from the card block 17, and the mounting plate 9 and the connecting shell 10 can be removed.

[0032] The mounting plate 9 and the connecting shell 10 can be disassembled by tightening the bolts 18, thereby facilitating maintenance and repair of the structure on the connecting shell 10 and improving flexibility in use.

[0033] Furthermore, a mounting groove 20 is provided on the left side of the support plate 3, and two slide grooves 21 are provided on the right side of the inner wall of the mounting groove 20. A movable slider 22 is provided inside the slide groove 21, and the surface of the slider 22 is in sliding contact with the inner wall of the slide groove 21. A fixing rod 23 is fixedly connected to the left side of the slider 22. The left end of the fixing rod 23 passes through the slide groove 21 and the mounting groove 20 from right to left and extends to the inside of the mounting groove 20. An extrusion block 24 is provided inside the mounting groove 20. The left side of the extrusion block 24 passes through the mounting groove 20 and extends to its outside. The right side of the extrusion block 24 is fixedly connected to the left end of the fixing rod 23. The surface of the fixing rod 23 A buffer spring 25 is sleeved, and a pressure sensor 26 used in conjunction with the extrusion block 24 is fixedly connected to the right side of the inner wall of the installation groove 20. Through the mutual cooperation of the installation groove 20, the slide groove 21, the slider 22, the fixing rod 23, the extrusion block 24, the buffer spring 25 and the pressure sensor 26, it is possible to clearly understand when the support plate 3 comes into contact with the ground, so that the support plate 3 can come into contact with the ground stably, and when the ground becomes uneven, the extended length of the two support plates 3 is judged by the two pressure sensors 26, so that the extended length of the two support plates 3 can be adjusted according to the flatness of the ground.

[0034] Furthermore, the servo motor 5 , the rotary motor 11 and the pressure sensor 26 are electrically connected to the controller respectively.

[0035] When in use, the servo motor 5 is started, and the servo motor 5 drives the driving gear 6 to rotate through the output shaft, and the driving gear 6 drives the connecting shaft 7 and the sofa backrest 2 to rotate through the driven gear 8, so that the sofa backrest 2 drives the support plate 3 to rotate 90 degrees to the left, so that the sofa backrest 2 and the sofa seat 1 are in a horizontal state;

[0036] When the rotating motor 11 is started, the rotating motor 11 drives the threaded rod 12 to rotate through the output shaft, and the threaded rod 12 drives the moving block 14 to move downward. The moving block 14 drives the supporting plate 3 to move downward through the moving plate 15, so that the supporting plate 3 drives the squeezing block 24 to move downward. When the squeezing block 24 contacts the ground, the squeezing block 24 moves close to the slide groove 21, and the squeezing block 24 squeezes the buffer spring 25 to move, so that the squeezing block 24 moves to the inside of the mounting groove 20. At this time, the support plate 3 is still moving downward. When the squeezing block 24 contacts the pressure sensor 26, the support plate 3 is just in contact with the ground. The pressure sensor 26 senses the pressure value and then transmits the signal to the controller. The controller immediately stops the corresponding rotating motor 11 to ensure that the support plate 3 is stably in contact with the ground, and the user can lie down on the sofa seat 1 and the sofa backrest 2 to use it.

[0037] 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 sofa bed with folding function, characterized by: The invention comprises a sofa seat (1) and a rotatable sofa backrest (2) arranged on the left side of the sofa seat (1); two movable support plates (3) are arranged on the left side of the sofa backrest (2).

2. The sofa bed with folding function according to claim 1, characterized in that: The invention also comprises a fixed shell (4), which is installed on the left side of the front of the sofa seat (1); a servo motor (5) is installed on the front of the fixed shell (4); the rear end of the output shaft of the servo motor (5) passes through the fixed shell (4) and extends into the interior thereof; and a driving gear (6) is installed on the surface of the output shaft of the servo motor (5).

3. The sofa bed with folding function according to claim 2, characterized in that: A connecting shaft (7) is rotatably connected to a groove on the front inner wall of the fixed shell (4) via a bearing, and a driven gear (8) is installed on the surface of the connecting shaft (7) at a position corresponding to the driving gear (6) and meshing with the driving gear (6). The rear end of the connecting shaft (7) passes through the fixed shell (4) and extends to the outside thereof to be fixedly connected to the front of the sofa backrest (2).

4. The sofa bed with folding function according to claim 3, characterized in that: A pluggable mounting plate (9) is provided on the left side of the sofa backrest (2); a connecting shell (10) is installed on the top and bottom of the mounting plate (9); a rotating motor (11) is installed on the right side of the inner wall of the connecting shell (10); and a threaded rod (12) is installed on the left end of the output shaft of the rotating motor (11).

5. The sofa bed with folding function according to claim 4, characterized in that: A fixed plate (13) is installed on the inner wall of the connecting shell (10), a movable block (14) is threadedly connected to the surface of the threaded rod (12), and two movable plates (15) are installed on the left side of the movable block (14). The left side of the movable plate (15) passes through the fixed plate (13) and the connecting shell (10) from right to left and extends to the outside of the connecting shell (10), and the left sides of the two movable plates (15) on the same side are fixedly connected to the right side of the support plate (3).

6. The sofa bed with folding function according to claim 5, characterized in that: Two card slots (16) are provided on the right side of the mounting plate (9); a card block (17) is installed on the left side of the sofa backrest (2) at a position corresponding to the card slot (16); the left side of the card block (17) passes through the card slot (16) and extends to the inside thereof to contact the inner wall of the card slot (16); a fastening bolt (18) threadedly connected to the card block (17) is provided on the left side of the mounting plate (9) at a position corresponding to the card block (17).

7. The sofa bed with folding function according to claim 1, characterized in that: A reinforcing plate (19) is installed on the back of the sofa seat (1), a rotating shaft is rotatably connected in a groove on the front of the reinforcing plate (19) via a bearing, and the front end of the rotating shaft is fixedly connected to the back of the sofa backrest (2).

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