CN223529185U

CN223529185U - An adjustable sofa back

Info

Publication number: CN223529185U
Application number: CN202422995510.9U
Authority: CN
Inventors: 冉建勇
Original assignee: Huizhou Dingxin Smart Home Co ltd
Current assignee: Huizhou Dingxin Smart Home Co ltd
Priority date: 2024-12-05
Filing date: 2024-12-05
Publication date: 2025-11-11
Anticipated expiration: 2034-12-05

Abstract

The utility model relates to the technical field of sofas, in particular to an adjustable sofa backrest, which comprises armrests arranged on two sides of the width direction of the top of a base, a back plate vertically arranged on the edge of the back of the base, and mounting plates arranged on the back plate in parallel, wherein the mounting plates are connected with first sliding blocks in a sliding manner, connecting blocks are connected to the two longitudinal sides of the first sliding blocks in a rotating manner, movable frames are connected to the two connecting blocks together, and a back cushion is arranged on one side of the movable frames, which is opposite to the back plate. The motor drive lead screw is rotatory in order to drive first slider and carry out elevating movement along the mounting panel, and then realizes that the user can easily adjust the height of cushion, adapts to different height user's user demand, simultaneously, realizes through adjusting the height of cushion that the user is according to self height and position of sitting custom, finds the most comfortable position of sitting, improves the use comfort.

Description

Adjustable sofa backrest

Technical Field

The utility model relates to the technical field of sofas, in particular to an adjustable sofa backrest.

Background

Along with the improvement of the living standard of people, the requirements on the household environment are also higher and higher. As one of the common furniture in living rooms, the sofa needs to not only have an attractive appearance, but also provide a comfortable sitting feel and use experience. The conventional sofa backrest is usually fixed and not adjustable, firstly, for users with higher heights, because the backrest is fixed and the backrest is relatively low in height, the users with higher heights can easily cause fatigue of the waist and the back to influence the health and the comfort of the users when the sofa is used for a long time, and if the sofa backrest is arranged to be higher, the users with shorter heights can easily fatigue the neck to influence the health and the comfort of the users when the sofa backrest is used, and secondly, the angles of the backrest required by the users are inconsistent when the users take rest in different postures, and the backrest requirements of different users in different rest postures can not be met because the sofa backrest is fixed and not adjustable.

Based on this, there is a need to design an adjustable sofa backrest to meet the height requirements of users of different heights on the backrest and to meet the backrest requirements of different users when resting in different postures.

Disclosure of utility model

The technical scheme is that the adjustable sofa backrest comprises armrests arranged on two sides of the width direction of the top of a base, a cushion arranged on the top of the base and a backboard vertically arranged on the edge of the back of the base, and further comprises a mounting plate arranged on the backboard in parallel, wherein the mounting plate is slidably connected with first sliding blocks, connecting blocks are rotatably connected to two longitudinal sides of the first sliding blocks, two connecting blocks are jointly connected with a movable frame, a back cushion is arranged on one side of the movable frame, which is opposite to the backboard, of the movable frame, the first sliding blocks are used for lifting and adjusting the height of the back cushion along the mounting plate, and an adjusting assembly for driving the connecting blocks to rotate so as to adjust the inclination angles of the movable frame and the back cushion is arranged between the movable frame and the mounting plate.

Further, the adjusting component comprises a second sliding block which is slidably arranged on the mounting plate, a U-shaped rod which is arranged at the back of the movable frame, and a hinged plate of which two ends are respectively and rotatably connected with the second sliding block and the U-shaped rod, wherein the second sliding block is arranged below the first sliding block.

Further, the mounting plate is also provided with an electric push rod for providing power for the lifting movement of the second slide block, and the movable end of the electric push rod is fixedly connected with the second slide block.

Further, the top of mounting panel still installs the extension board, installs the motor on the extension board, and the output shaft of motor has the lead screw, and the lead screw thread runs through first slider.

Further, grooves for the movable frame and the back cushion to move obliquely are formed in the back plate.

Further, a foot rest plate is slidably arranged between the seat cushion and the base, and the foot rest plate is horizontally moved to adjust the position of the foot rest plate according to leg support requirements.

Further, a movable wheel is arranged at the bottom of the foot rest plate.

The motor-driven back cushion has the beneficial effects that 1, the motor drives the screw rod to rotate so as to drive the first sliding block to lift along the mounting plate, so that the user can easily adjust the height of the back cushion, the back cushion is suitable for the use requirements of users with different heights, meanwhile, the user can find the most comfortable sitting posture according to the height and sitting posture habit of the user by adjusting the height of the back cushion, and the use comfort is improved.

2. The electric putter drive second slider downstream, the second slider is rotated as the center through the cooperation drive movable frame of articulated slab and U-shaped pole with the articulated department of connecting block and first slider to this realizes adjusting the inclination of cushion, and then adapts to different rest demands, in order to reach the user and find the most comfortable back angle when having a rest, alleviates the pressure at waist and back, alleviates fatigue.

3. The sliding arrangement of the foot rest provides additional leg support for the user, increasing comfort, and the user can freely adjust the position of the foot rest according to his or her leg length and support requirements.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic perspective view of parts such as a back cushion, a movable frame, a mounting plate, a back plate and the like.

Fig. 3 is a schematic cross-sectional perspective view of the movable frame of the present utility model.

Fig. 4 is a schematic perspective view of an adjusting assembly according to the present utility model.

In the figure, the names and serial numbers of the parts are 1, a base, 101, a back plate, 2, an armrest, 3, a cushion, 4, a back cushion, 5, a movable frame, 6, a mounting plate, 7, a first sliding block, 8, a connecting block, 9, a second sliding block, 10, a hinged plate, 11, a U-shaped rod, 12, an electric push rod, 13, a support plate, 14, a motor, 15, a screw rod, 16, a foot rest plate, 17 and a movable wheel.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings.

The embodiment of the adjustable sofa backrest comprises a base 1, a backboard 101, armrests 2, a cushion 3, a back cushion 4, a movable frame 5, a mounting plate 6, a first sliding block 7 and a connecting block 8, wherein the base 1 is a basic part of the whole sofa, the armrests 2 are arranged on two sides of the width direction of the top of the base 1, the armrests 2 provide supporting and holding functions, the cushion 3 is arranged on the top of the base 1, the cushion 3 is arranged between the armrests 2, the cushion 3 is used for providing comfortable sitting feeling, the backboard 101 is vertically arranged on the edge of the back of the base 1, the backboard 101 is used for mounting a backrest component of the sofa, the mounting plate 6 is arranged on the backboard 101 in parallel, the mounting plate 6 is used for mounting and adjusting the backrest component, a first sliding block 7 is connected on the mounting plate 6 in a lifting mode, the first sliding block 7 is used for adjusting the height of the back cushion 4, so as to adapt to users with different heights, the first sliding block 7 is rotatably connected with the connecting block 8 on two sides of the longitudinal direction, the two connecting blocks 8 are fixedly connected with the movable frame 5 jointly, the back cushion 4 is arranged on one side of the movable frame 5 facing the backboard 101, the cushion 4 is used for providing comfortable backrest support by the cushion 4, the backrest support is arranged on the side, the backrest 4, the mounting plate 6 is used for providing a comfortable backrest support by the cushion 6, the backrest support is arranged on the backrest support 6, the side 6 is used for providing a comfortable backrest support, the backrest support and the backrest support is arranged on the backrest seat 4 and the backrest seat 4 is provided with a groove 4 and the backrest seat is provided with a groove and the backrest seat 4 and the backrest is rotatably and is provided with a seat 4.

As shown in fig. 3 and 4, the adjusting component comprises a second sliding block 9 slidably mounted on the mounting plate 6, a U-shaped rod 11 mounted on the back of the movable frame 5, and a hinged plate 10 with two ends rotatably connected with the second sliding block 9 and the U-shaped rod 11 respectively, wherein the second sliding block 9 is arranged below the first sliding block 7, an electric push rod 12 for providing power for the lifting motion of the second sliding block 9 is further mounted on the mounting plate 6, the movable end of the electric push rod 12 is fixedly connected with the second sliding block 9, when the movable end of the electric push rod 12 extends downwards, the electric push rod 12 pushes the second sliding block 9 to move downwards along the mounting plate 6, the movable frame 5 is driven to rotate by the rotating fit of the hinged plate 10 and the U-shaped rod 11 by taking the joint of the connecting block 8 and the first sliding block 7 as the center, so that the lower end of the movable frame 5 is lifted up in the direction away from the mounting plate 6, the upper end of the movable frame 5 is close to the direction of the back plate 101, thereby adjusting the tilting angle of the movable frame 5 and the back cushion 4, so as to achieve the most comfortable back rest angle of a user when the user is at rest, the electric push rod 12 is pushed by the electric push rod 12 moves downwards, the second sliding block 9 can move downwards, and the waist rest and the fatigue of the user can be relieved by the user can be kept in the process of the stable and the lifting and the waist of the movable frame by the hinge plate through the sliding rod 11 and the hinge plate by the movement.

As shown in fig. 4, the top of the mounting plate 6 is also provided with a support plate 13, the support plate 13 is provided with a motor 14, an output shaft of the motor 14 is connected with a screw rod 15, screw threads of the screw rod 15 penetrate through the first sliding block 7, the first sliding block 7 is driven to lift by adopting a mode that the motor 14 drives the screw rod 15, so that the lifting height of the first sliding block 7 can be accurately controlled, and meanwhile, after the motor 14 stops working, the height of the first sliding block 7 is maintained, and the accuracy and stability of the height adjustment of the movable frame 5 and the back cushion 4 are further realized.

As shown in fig. 1, a foot rest 16 is slidably arranged between the seat cushion 3 and the base 1, the foot rest 16 is horizontally moved to adjust the position of the foot rest 16 according to leg support requirements, additional leg support is provided for a user, the user can freely adjust the position of the foot rest 16 according to the leg length and support requirements, a moving wheel 17 is arranged at the bottom of the foot rest 16, the arrangement of the moving wheel 17 ensures smooth sliding process of the foot rest 16, sliding friction force of the foot rest is reduced, and the user can easily adjust the position of the foot rest 16.

When the height of the back cushion 4 needs to be adjusted, the motor 14 works, the motor 14 drives the screw rod 15 to rotate through the output shaft of the motor, the screw rod 15 rotates to drive the first sliding block 7 to lift along the mounting plate 6, the first sliding block 7 drives the movable frame 5 to lift along the mounting plate 6 through the connecting block 8, and therefore the height of the back cushion 4 can be adjusted according to the needs of a user, and the user can find the most comfortable sitting posture according to the height and sitting posture habit of the user through adjusting the height of the back cushion 4; when the inclination angle of the back cushion 4 needs to be adjusted, firstly, the screw rod 15 is driven to rotate through the motor 14 so as to drive the first sliding block 7 to move upwards, so that the movable frame 5 and the back cushion 4 move upwards, then, the electric push rod 12 extends downwards, the electric push rod 12 drives the second sliding block 9 to move downwards along the mounting plate 6, when the second sliding block 9 moves downwards, the movable frame 5 is driven to rotate clockwise by taking the hinge joint of the connecting block 8 and the first sliding block 7 as a center through the hinge plate 10, so that the top of the movable frame 5 moves towards the back of the back plate 101, the bottom end of the movable frame 5 moves towards the direction away from the back plate 101, the inclination angle of the movable frame 5 is adjusted, the inclination angle of the back cushion 4 is adjusted, the most comfortable back cushion angle can be found by adjusting the inclination angle of the back cushion 4, the pressure of the waist and the back is reduced, and when the back cushion 16 needs to provide support for the legs of a user, the back cushion 16 is pulled towards the direction away from the back cushion 3, the leg comfort of the user is increased, and the foot cushion 16 slides forwards.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims

1. The utility model provides an adjustable sofa back, both sides including base (1) top width direction are provided with handrail (2), base (1) top is provided with cushion (3) and base (1) back edge installs backplate (101) perpendicularly, a serial communication port, still be provided with mounting panel (6) on backplate (101) side by side, sliding connection has first slider (7) on mounting panel (6), first slider (7) vertical both sides rotate and are connected with connecting block (8), two connecting blocks (8) are connected with movable frame (5) jointly, cushion (4) are installed to one side of movable frame (5) dorsad backplate (101), the height of cushion (4) is adjusted along mounting panel (6) lift to first slider (7), be provided with the regulation subassembly of drive connecting block (8) rotation in order to adjust movable frame (5) and cushion (4) inclination between movable frame (5) and mounting panel (6).

2. An adjustable sofa backrest according to claim 1, characterized in that the adjusting assembly comprises a second slider (9) slidably mounted on the mounting plate (6), a U-shaped rod (11) mounted on the back of the movable frame (5), and a hinged plate (10) with two ends respectively rotatably connected with the second slider (9) and the U-shaped rod (11), the second slider (9) being arranged below the first slider (7).

3. An adjustable sofa backrest according to claim 2, characterized in that the mounting plate (6) is also provided with an electric push rod (12) for powering the lifting movement of the second slider (9), and the movable end of the electric push rod (12) is fixedly connected with the second slider (9).

4. An adjustable sofa backrest according to claim 3, characterized in that the top of the mounting plate (6) is also provided with a support plate (13), the support plate (13) is provided with a motor (14), the output shaft of the motor (14) is connected with a screw rod (15), and the screw rod (15) penetrates through the first sliding block (7) in a threaded manner.

5. An adjustable sofa backrest according to claim 4, characterized in that the back plate (101) is provided with grooves for the tilting movement of the movable frame (5) and the back cushion (4).

6. An adjustable sofa backrest according to claim 5, characterized in that a foot rest (16) is slidably arranged between the seat cushion (3) and the base (1), the foot rest (16) being moved horizontally to adjust the position of the foot rest (16) according to leg support requirements.

7. An adjustable sofa back according to claim 6, characterized in that the foot rest (16) is provided with a moving wheel (17) at the bottom.