Sofa with adjustable supine angle

By designing an adjustable reclining angle backrest rotation device, leg support device, and backrest support structure on the sofa, the problems of difficult-to-adjust backrest tilt and lack of leg support are solved, achieving greater comfort and safety.

CN223568986UActive Publication Date: 2025-11-21HUNAN SHIGUANG IND CO LTD
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Patent Information

Application Number
CN202520127746.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2025-11-21
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

Existing sofas have difficulty adjusting the tilt angle of the backrests individually, failing to meet the comfort needs of people resting on the sofa, and lack effective leg support.

Method used

An adjustable reclining sofa was designed. Through a backrest rotation device, a leg support device, and a backrest support structure, combined with a heater and control switch group, the backrest and seat cushion can be flexibly adjusted, providing leg support and lumbar warmth.

Benefits of technology

The sofa improves comfort and safety by allowing users to adjust the reclining angle to meet the rest needs of different people. It also increases leg support and lumbar warmth, preventing the risk of tipping over.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223568986U_ABST
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Abstract

The sofa comprises a backrest, a cushion, armrests, a leg supporting device, a bottom plate, a backrest rotating device, a base, a fan heater and a backrest supporting structure, the backrest rotating device is arranged in the backrest, the bottom plate is fixedly arranged on the surface of the cushion, the leg supporting device is movably arranged at one end of the bottom plate, and the backrest rotating device is fixedly arranged on the base. A warm air blower is arranged between the bottom plate and the backrest rotating device, and a backrest supporting structure is arranged on the outer surface of the backrest. According to the sofa, the backrest and the seat cushion are connected through the rotating backrest rotating device, the seat cushion and the leg supporting device are connected through the rotating leg supporting part rotating shaft, so that the sofa rotates to adjust the supine angle, and the warm air blower is arranged between the backrest and the seat cushion, so that the warm air blower has a warm keeping effect when the waist is suspended in the air; and the backrest supporting structure capable of being turned over vertically is arranged outside the backrest, so that the safety performance after the user lies on the back is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to sofa technical field especially relates to a sofa of adjustable supine angle. BACKGROUND

[0002] Sofa is a kind of multi-seat chair with soft cushion, and is a kind of software furniture with spring or thick foam plastic backrest chair, and has armrests on both sides. Sofa is indispensable furniture in modern home, and people are prone to fatigue, and feel sore and weak after working for a long time in fixed sitting posture, so people usually lie on sofa to relax and rest.

[0003] However, the existing sofa is usually difficult to adjust the sofa back cushion alone to incline backward when in use, cannot place the back cushion in a horizontal position, so that people are difficult to lie on the sofa to rest, and the device is difficult to adjust the support of the sofa bottom side to the leg according to the needs of personnel, and the leg is difficult to be effectively placed when the personnel rest.

[0004] In order to solve the above problems, a sofa with adjustable supine angle is needed to meet the rest needs of personnel. INVENTION CONTENTS

[0005] The utility model provides a sofa with adjustable supine angle in view of the deficiency of prior art, and the specific technical scheme is as follows:

[0006] A sofa with adjustable supine angle, including sofa main part, the sofa main part includes backrest, armrest and base, the top of base is equipped with bottom plate and cushion in proper order, the both sides of base are respectively equipped with armrest fixedly, the one end of bottom plate is equipped with leg support device movably, the backrest is equipped with backrest rotation device that can drive backrest to rotate, the external surface of backrest is provided with backrest support structure.

[0007] As the improvement of the above technical scheme, the backrest rotation device includes backrest plate, backrest part rotation shaft, limiting column, rotation motor, control switch group and damping device, the inside of backrest is provided with backrest plate, the inside of the bottom end of backrest is provided with backrest part rotation shaft, the both ends surface of backrest part rotation shaft and backrest plate are provided with limiting column, one end of backrest part rotation shaft is fixedly provided with rotation motor, and damping device is arranged between the both ends of backrest plate and bottom plate.

[0008] As the improvement of the above technical scheme, the leg support device includes connecting rod, leg support part rotation shaft, rotary motor and leg support plate, the both sides of the front end of bottom plate are equipped with connecting rod, the both ends of connecting rod are movably provided with leg support part rotation shaft, one end of leg support part rotation shaft is provided with rotary motor, and leg support plate is movably arranged between the surface of connecting rod and leg support part rotation shaft.

[0009] As the improvement of the above technical scheme, the backrest support structure comprises a support frame, a turnover shaft, a turnover motor and an X-shaped support column, the top end frame of the support frame is internally provided with the turnover shaft, one end of the turnover shaft is provided with the turnover motor, and the support frame is fixedly provided with the X-shaped support column.

[0010] As the improvement of the above technical scheme, the backrest and the cushion are provided with a waist pillow, and the bottom plate is provided with a warm air blower between the backrest and the backrest rotating device.

[0011] As the improvement of the above technical scheme, the inside of the armrest is provided with a control switch group, and the control switch group is electrically connected with the rotating motor, the rotating motor and the turnover motor respectively.

[0012] The sofa has the advantages that:

[0013] 1. The sofa is provided with a backrest, a cushion, an armrest, a leg support device, a bottom plate, a backrest rotating device, a base, a warm air blower and a backrest support structure, the backrest and the cushion are connected with each other through the backrest rotating device which can rotate, the cushion and the leg support device are connected with each other through the leg support rotating shaft which can rotate, the whole sofa can be rotated and adjusted to an angle of lying on the back, better comfort is achieved, the warm air blower is arranged between the backrest and the cushion, the lying on the back is realized, the waist is kept warm when the waist is suspended, the bottom plate is arranged above the base, the safety of the backrest rotating device is improved when rotating backward, the overturning of the sofa is avoided, the backrest support structure which can be vertically turned is arranged outside the backrest, the X-shaped support column is arranged in the support frame, and the safety performance after lying on the back is greatly improved.

[0014] 2. The backrest rotating device is arranged in the backrest and connected with the bottom plate, the backrest rotating shaft can drive the backrest to lie on the back, the backrest rotating shaft and the rotating motor are limited by the limiting column, the collision of the whole device is automatically controlled, and the inertia of the backrest is effectively reduced by the damping device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the whole structure of the sofa.

[0016] Figure 2 It is a perspective view of the leg support device and the backrest rotating device in the sofa.

[0017] Figure 3 It is a perspective view of the leg support device and the backrest rotating device in the sofa.

[0018] Figure 4 It is a perspective view of the backrest support structure in the sofa.

[0019] Fig. 1 is a backrest; 2 is a cushion; 21 is a lumbar pillow; 3 is an armrest; 4 is a leg support device; 41 is a connecting rod; 42 is a leg support part rotating shaft; 43 is a rotating motor; 44 is a leg support plate; 5 is a bottom plate; 6 is a backrest rotating device; 61 is a backrest plate; 62 is a backrest part rotating shaft; 63 is a limiting column; 64 is a rotating motor; 65 is a control switch group; 66 is a damping device; 7 is a base; 8 is a hair drier; 9 is a backrest support structure; 91 is a support frame; 92 is a turnover shaft; 93 is a turnover motor; 94 is an X-shaped support column. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clearly understood, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0021] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the utility model is a perspective view of the overall structure of the utility model; Figure 1 is a perspective view of a leg support device and a backrest rotating device in the utility model; Figure 2 is a rear perspective view of a leg support device and a backrest rotating device in the utility model; Figure 3 is a perspective view of a backrest support structure in the utility model. Figure 4

[0022] A sofa with adjustable supine angle, comprising a sofa main body, the sofa main body comprising a backrest 1, an armrest 3 and a base 7, a bottom plate 5 and a cushion 2 being sequentially arranged above the base 7, the armrest 3 being fixedly arranged on both sides of the base 7, the leg support device 4 being movably arranged at one end of the bottom plate, the backrest 1 being provided with a backrest rotating device 6 capable of driving the backrest 1 to rotate, and the backrest 1 being externally provided with a backrest support structure 9.

[0023] The backrest 1 and the cushion 2 are connected to each other through the rotatable backrest rotating device 6, and the cushion 2 and the leg support device 4 are connected to each other through the rotatable leg support part rotating shaft 42, so that the entire sofa can be rotated to adjust the supine angle, and better comfort is achieved, the safety of the backrest rotating device 6 during backward rotation is increased by arranging the bottom plate 5 above the base 7, and overturning is avoided, the backrest 1 is externally provided with the vertically overturnable backrest support structure 9, and the X-shaped support column 94 is arranged in the support frame 91, so that the safety performance after supination is greatly increased.

[0024] As shown in Figure 2 and Figure 3 ,​Figure 2 It is a perspective view of the leg supporting device and the backrest rotating device in the utility model; Figure 3 It is a perspective view of the leg supporting device and the backrest rotating device in the utility model.

[0025] The backrest rotating device 6 comprises a backrest plate 61, a backrest rotating shaft 62, a limiting column 63, a rotating motor 64, a control switch group 65 and a damping device 66, the backrest plate 61 is arranged inside the backrest 1, the backrest rotating shaft 62 is arranged inside the bottom end of the backrest 1, the limiting column 63 is arranged on the both end surfaces of the backrest rotating shaft 62 and the backrest plate 61, the rotating motor 64 is fixedly arranged on one end of the backrest rotating shaft 62, and the damping device 66 is arranged between the backrest plate 61 and the bottom plate 5.

[0026] The backrest rotating device 6 is arranged inside the backrest 1 and is connected to the bottom plate 5, the backrest rotating shaft 62 can drive the backrest 1 to lie back on the seat cushion 2, so that the backrest 1 can be parallel to the seat cushion 2, the limiting column 63 is arranged between the backrest rotating shaft 62 and the rotating motor 64, the whole device can be automatically controlled to avoid collision, and the damping device 66 can effectively slow down the inertia of lying back.

[0027] The leg supporting device 4 comprises a connecting rod 41, a leg supporting rotating shaft 42, a rotating motor 43 and a leg supporting plate 44, the connecting rod 41 is arranged on the both sides of the front end of the bottom plate 5, the leg supporting rotating shaft 42 is movably arranged between the both ends of the connecting rod 41, the rotating motor 43 is arranged on one end of the leg supporting rotating shaft 42, and the leg supporting plate 44 is movably arranged between the surface of the connecting rod 41 and the leg supporting rotating shaft 42.

[0028] The leg supporting plate 44 and the seat cushion 2 are parallel to each other through the rotatable leg supporting rotating shaft 42 arranged between the seat cushion 2 and the leg supporting device 4, the leg supporting plate 44 can support the legs when lying back, and the comfort is improved.

[0029] As shown in the figure, Figure 4 As shown in the figure, Figure 4 It is a perspective view of the backrest supporting structure in the utility model.

[0030] The backrest supporting structure 9 comprises a supporting frame 91, a turnover shaft 92, a turnover motor 93 and an X-shaped supporting column 94, the turnover shaft 92 is arranged inside the top end frame of the supporting frame 91, the turnover motor 93 is arranged on one end of the turnover shaft 92, and the X-shaped supporting column 94 is fixedly arranged in the supporting frame 91.

[0031] The X-shaped support column 94 is arranged inside the support frame 91, thereby greatly increasing the safety performance after the back lying, the turnover shaft 92 and the turnover motor 93 are arranged at the end of the support frame 91, the backrest can drive the backrest support structure 9 to be perpendicular to the ground while the backrest is lying on the back, thereby increasing the safety performance and convenience after the back lying.

[0032] The waist pillow 21 is arranged between the backrest 1 and the cushion 2, and the warm air machine 8 is arranged between the bottom plate 5 and the backrest rotating device 6.

[0033] The waist pillow 21 can connect the backrest 1 and the cushion 2, thereby improving the comfort of the waist lying on the back, and the warm air machine 8 is arranged between the backrest 1 and the cushion 2, thereby realizing the back lying and the warm-keeping effect when the waist is suspended.

[0034] The control switch group 65 is arranged inside the armrest 3, and the control switch group 65 is electrically connected with the rotating motor 43, the rotating motor 64 and the turnover motor 93.

[0035] The control switch group 65 can control the backrest rotating device 6, the leg support device 4 and the backrest support structure 9, thereby facilitating the back lying work of the whole sofa.

[0036] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A reclining angle adjustable sofa, characterized by: The application relates to a sofa, which comprises a sofa body, a backrest (1), an armrest (3) and a base (7), a bottom plate (5) and a cushion (2) arranged on the base (7) in sequence, an armrest (3) fixedly arranged on each side of the base (7), a leg supporting device (4) movably arranged at one end of the bottom plate, a backrest rotating device (6) arranged on the backrest (1) and capable of driving the backrest (1) to rotate, and a backrest supporting structure (9) arranged on the outer surface of the backrest (1).

2. The adjustable-reclining-angle sofa according to claim 1, characterized in that: The backrest rotating device (6) comprises a backrest plate (61), a backrest part rotating shaft (62), a limiting column (63), a rotating motor (64), a control switch group (65) and a damping device (66), the backrest (1) is internally provided with the backrest plate (61), the bottom end of the backrest (1) is internally provided with the backrest part rotating shaft (62), the backrest part rotating shaft (62) is provided with the limiting column (63) on the surfaces of two ends of the backrest plate (61), one end of the backrest part rotating shaft (62) is fixedly provided with the rotating motor (64), and the damping device (66) is arranged between the backrest plate (61) and the bottom plate (5) at two ends.

3. The adjustable-reclining-angle sofa according to claim 1, characterized in that: The leg supporting device (4) comprises a connecting rod (41), a leg supporting part rotating shaft (42), a rotating motor (43) and a leg supporting plate (44), the two sides of the front end of the bottom plate (5) are provided with the connecting rod (41), the connecting rod (41) is movably provided with the leg supporting part rotating shaft (42) between two ends, one end of the leg supporting part rotating shaft (42) is provided with the rotating motor (43), and the leg supporting plate (44) is movably arranged between the surfaces of the connecting rod (41) and the leg supporting part rotating shaft (42).

4. The adjustable-reclining-angle sofa according to claim 1, characterized in that: The backrest supporting structure (9) comprises a supporting frame (91), a turnover shaft (92), a turnover motor (93) and an X-shaped supporting column (94), the turnover shaft (92) is arranged in the top end frame of the supporting frame (91), one end of the turnover shaft (92) is provided with the turnover motor (93), and the X-shaped supporting column (94) is fixedly arranged in the supporting frame (91).

5. The adjustable-reclining-angle sofa according to claim 1, wherein: A waist pillow (21) is arranged between the backrest (1) and the cushion (2), and a warm air blower (8) is arranged between the bottom plate (5) and the backrest rotating device (6).

6. The adjustable-reclining-angle sofa according to claim 1, wherein: The control switch group (65) is arranged in the armrest (3) and is electrically connected with the rotating motor (43), the rotating motor (64) and the turnover motor (93) respectively.