Combined sofa chair
By introducing a lifting and height adjustment mechanism into the modular sofa chair, the problem of the footstool's inability to be adjusted in height has been solved, enabling the footstool to move flexibly and be height-adjustable, thus improving the user's comfort and usability.
Patent Information
- Application Number
- CN202520597216.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-31
AI Technical Summary
The footstools of existing modular sofa chairs cannot be height adjusted, resulting in poor comfort. Furthermore, when extended, the footstools are lower than the sofa body, making them inconvenient to use.
A combined sofa chair including a lifting mechanism and a height adjustment mechanism was designed. The footstool can be moved and the seat height can be adjusted by a drive mechanism, and the footstool can be raised, lowered and adjusted by an X-shaped support and a threaded adjustment mechanism.
The footstool features adjustable height, improving user comfort, relieving leg fatigue, and increasing flexibility and comfort.
Smart Images

Figure CN223787386U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sofa chair, in particular to a combined sofa chair. BACKGROUND
[0002] The sofa chair usually adopts soft filling (such as sponge, down) and ergonomic design, provides waist, neck support, is suitable for long time sitting and lying, and relieves fatigue. In the prior art, the traditional combined sofa chair usually adopts integrated structure design, is usually matched with a foot stool and a handrail tray, so as to improve the comfort.
[0003] In the patent with the application number 202322817869.2, a combined sofa is disclosed, which comprises a mounting shell and a first soft pad, the top surface of the mounting shell is fixedly connected with the first soft pad, a dismounting assembly is arranged on the outer wall of one side of the mounting shell, an adjusting assembly is arranged in the mounting shell, the adjusting assembly comprises a motor, and the outer wall of one side of the motor is fixedly connected with the inner wall of one side of the mounting shell. The utility model can adjust the length of the combined sofa. In the utility model, the adjusting assembly is arranged, through the design, the length of the combined sofa can be adjusted according to the required length when the combined sofa is used by using the threaded rod and the threaded sleeve, and the first soft pad on the moving plate is cleaned by the cleaning cotton when the length of the combined sofa is adjusted, so that dust on the first soft pad is prevented, and the workload of cleaning is reduced. However, the height of the extended part of the sofa is obviously lower than the height of the body part of the sofa, and the height cannot be adjusted, so that the comfort is poor. SUMMARY
[0004] The utility model aims at providing a combined sofa chair. It can easily realize the moving out or retraction of the foot stool, the height of the foot stool is adjustable, and the comfort is good.
[0005] The technical scheme of the utility model: a combined sofa chair comprises:
[0006] The sofa body is internally provided with a placing cavity, and a foot stool movable relative to the sofa body is arranged in the placing cavity;
[0007] The foot stool comprises a base provided with wheels, and a seat surface is arranged on the base and controlled to be lifted by a lifting mechanism;
[0008] The lifting mechanism comprises guide rails arranged on both sides of the foot stool and both sides of the lower end of the seat surface, a plurality of fixed blocks and a plurality of movable blocks slidable relative to the guide rails are arranged in the guide rails, X-shaped supporting legs are arranged on the fixed blocks and the movable blocks, the upper ends of the X-shaped supporting legs are connected with the seat surface, and a height adjusting mechanism for adjusting the opening size of the lower end of the X-shaped supporting legs is arranged in the X-shaped supporting legs;
[0009] The first driving mechanism is used for driving the foot stool to move relative to the sofa body.
[0010] The driving mechanism comprises a first hinged seat arranged at the innermost side of the accommodating cavity and arranged at the lower end of the accommodating cavity, a second hinged seat arranged at the two sides of the foot stool and arranged at the lower end of the foot stool, a mounting shaft arranged horizontally and penetrating the sofa body at the end, a first rotating rod arranged on the mounting shaft and capable of rotating relative to the first hinged seat, a second rotating rod arranged on the second hinged seat and capable of rotating relative to the second hinged seat, the first rotating rod and the second rotating rod are rotatably connected, and the first rotating rod is provided with a crank handle for driving the first rotating rod to rotate.
[0011] The height adjusting mechanism comprises two groups of mounting plates arranged horizontally and parallelly between the X-shaped supporting legs, the mounting plates are capable of rotating relative to the X-shaped supporting legs, the middle part of the mounting plate is provided with a threaded hole, a screw rod is arranged in the threaded hole and capable of rotating relative to the threaded hole, the screw rod is externally provided with an extension sleeve rod with two ends fixed on the mounting plate, and the end of the screw rod is provided with a driving handle.
[0012] The screw rod is provided with two groups of threaded sections corresponding to the threaded holes of the two groups of mounting plates, and the threaded directions are opposite.
[0013] Compared with the prior art, the utility model has the following advantages:
[0014] The first driving mechanism is arranged to realize the movement of the foot stool relative to the sofa body, so that the user's feet can be better supported, and the lifting mechanism arranged in the foot stool can be used to realize the lifting of the chair surface, and the comfort is better. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 is the structure schematic view of the utility model;
[0016] Fig. 2 is the structure schematic view of the utility model;
[0017] Fig. 3 is the structure schematic view of the utility model.
[0018] The marks in the drawings are: 1-sofa body, 2-accommodating cavity, 3-foot stool, 4-castor, 5-base, 6-chair surface, 7-first hinged seat, 8-first rotating rod, 9-mounting plate, 10-second hinged seat, 11-second rotating rod, 12-guide rail, 13-fixed block, 14-moving block, 15-X-shaped supporting leg, 16-mounting shaft, 17-crank handle, 19-screw rod, 20-extension sleeve rod, 21-driving handle. DETAILED DESCRIPTION
[0019] The utility model will be further described below in combination with the drawings and examples, but it is not as the basis for limiting the utility model.
[0020] Embodiment. A combined sofa chair, comprising Figs. 1-3 as shown, comprising:
[0021] a sofa body 1, provided with a placing cavity 2 at the front side, and a foot stool 3 movably arranged in the placing cavity 2;
[0022] the foot stool 3, comprising a base 5 provided with wheels 4, and a seat 6 arranged on the base 5 and controlled by a lifting mechanism;
[0023] the lifting mechanism, comprising guide rails 12 arranged at both sides of the foot stool 3 and at the lower end of the seat 6, a plurality of fixed blocks 13 and a plurality of movable blocks 14 slidably arranged in the guide rails 12, X-shaped legs 15 arranged on the fixed blocks 13 and the movable blocks 14, upper ends of the X-shaped legs 15 connected to the seat 6, and a height adjusting mechanism arranged in the X-shaped legs 15 and used for adjusting the opening size of the lower end of the X-shaped legs 15;
[0024] a first driving mechanism, used for driving the foot stool 3 to move relative to the sofa body 1.
[0025] the driving mechanism, comprising first hinge seats 7 arranged at the innermost side of the placing cavity 2 and at the lower end of the placing cavity 2, second hinge seats 10 arranged at both sides of the foot stool 3 and at the lower end of the foot stool 3, a mounting shaft 16 horizontally arranged between the first hinge seats 7 and penetrating through the sofa body 1, a first rotating rod 8 rotatably arranged on the mounting shaft 16 and relative to the first hinge seats 7, a second rotating rod 11 rotatably arranged on the second hinge seats 10 and relative to the second hinge seats 10, the first rotating rod 8 and the second rotating rod 11 rotatably connected, and a crank 17 arranged at the end of the first rotating rod 8 and used for driving the first rotating rod 8 to rotate.
[0026] the height adjusting mechanism, comprising two groups of mounting plates 9 arranged between the X-shaped legs 15 and horizontally and parallelly arranged, the mounting plates 9 rotatable relative to the X-shaped legs 15, screw holes arranged in the middle of the mounting plates 9, screw rods 19 rotatable relative to the screw holes, telescopic sleeve rods 20 fixed at both ends of the screw rods 19 and arranged outside the screw rods 19, and driving handles 21 arranged at the ends of the screw rods 19.
[0027] the screw rods 19, provided with two groups of screw thread sections corresponding to the screw holes of the two groups of mounting plates 9, and the screw thread directions of the two groups of screw thread sections opposite.
[0028] The utility model discloses a principle: the application uses, the foot stool 3 is generally collected in the installation cavity 2 of sofa body 1, is favorable to save space, when needing to support the foot or leg, can move through the first drive mechanism and drive foot stool 3, and the applicability and the comfort are better. First drive mechanism passes through the rocking handle 17 and the installation shaft 16 and drives first rotary rod 8 to rotate towards foot stool 3 direction, and installation shaft 16 is fixedly connected with first rotary rod 8, can adopt key, welding and so on to connect, when first rotary rod 8 rotates, will drive second rotary rod 11 also rotate, because the height of first rotary rod 8 and second rotary rod 11 connecting point is constantly declining, that is, the angle between first rotary rod 8 and second rotary rod 11 is constantly increasing, and the spacing between foot stool 3 and installation cavity bottom is also constantly increasing, realize the adjustment of foot stool 3 position. Because there is friction between foot stool 3 and ground, foot stool 3 is not easy to move when the leg is placed on the foot stool, therefore, the application does not set up self-locking structure, further, the application can set up the bidirectional ratchet mechanism of coaxial setting on the installation shaft 16, to realize self-locking. After foot stool 3 moves out, the chair surface 6 is lifted through the lifting mechanism, compared with the conventional foot stool that is placed in the installation cavity 2 of sofa body 1 and can not adjust height, the application is better in comfort, and appropriately lifting the leg height can promote leg blood circulation, relieve leg muscle tension, pain and other symptoms. Moreover, after the leg is lifted, blood return is also promoted, the blood supply of heart and brain is increased, and the condition of leg edema is relieved, which is good for human body. The lifting mechanism of the application utilizes height adjusting mechanism to drive the size of the opening at both ends of X-shaped supporting leg 15 to change, that is, fixed block 13 does not move, and moving block 14 slides along guide rail 12, so that the height of chair surface 6 changes. The principle is similar to the existing X-type lifting platform, but the existing X-type lifting platform usually uses hydraulic equipment to realize height adjustment. The application uses height adjusting mechanism to adjust the size of the opening at both ends of X-shaped supporting leg 15. First, a set of shaft is fixed on the opposite side of the two X-shaped supports, the shaft can be a single head bolt, the threaded section is screwed into X-shaped supporting leg 15, then mounting plate 9 is fixed on the single head bolt rod section, so that mounting plate 9 can rotate relative to the shaft, and a telescopic sleeve rod 20 is arranged between the mounting plates, a screw hole is arranged in mounting plate 9, a screw rod 19 is arranged in the screw hole, the mounting plate 9 moves towards or away from each other by rotating the screw rod 19, the height of the chair surface is adjusted, and the telescopic sleeve rod ensures that the two mounting plates 9 are horizontal and parallel, which is more reliable. The application can easily realize the moving out or retraction of the foot stool, and the height of the foot stool is adjustable, which is comfortable.
Claims
1. A combination sofa chair, characterized by The utility model relates to a sofa with a foot stool, which comprises: a sofa body, a placement cavity is arranged on the front side of the sofa body, and a foot stool capable of moving relative to the sofa body is arranged in the placement cavity; the foot stool comprises a base provided with wheels and a seat controlled to move up and down by a lifting mechanism; the lifting mechanism comprises guide rails arranged on both sides of the foot stool and the lower end of the seat, a plurality of fixed blocks and a plurality of movable blocks capable of sliding relative to the guide rails are arranged in the guide rails, X-shaped legs are arranged on the fixed blocks and the movable blocks, the upper end of the X-shaped legs is connected to the seat, and a height adjustment mechanism for adjusting the opening size of the lower end of the X-shaped legs is arranged in the X-shaped legs; a first driving mechanism is arranged to drive the foot stool to move relative to the sofa body.
2. A combination sofa chair according to claim 1, wherein: The driving mechanism comprises first hinge seats arranged at the innermost side of the placement cavity and arranged on both sides of the lower end of the placement cavity and second hinge seats arranged on both sides of the foot stool and arranged at the lower end of the foot stool, a mounting shaft horizontally arranged and penetrating through the sofa body is arranged between the first hinge seats, a first rotating rod capable of rotating relative to the first hinge seats is arranged on the mounting shaft, a second rotating rod capable of rotating relative to the second hinge seats is arranged on the second hinge seats, the first rotating rod and the second rotating rod are rotatably connected, and a handle for driving the first rotating rod to rotate is arranged at the end of the first rotating rod.
3. The combination sofa chair defined in claim 1, wherein: The height adjustment mechanism comprises two groups of mounting plates arranged between the X-shaped legs and horizontally and parallelly arranged, the mounting plates are capable of rotating relative to the X-shaped legs, screw holes are arranged in the middle of the mounting plates, screw rods capable of rotating relative to the screw holes are arranged in the screw holes, telescopic sleeve rods with both ends fixed on the mounting plates are arranged outside the screw rods, and a driving handle is arranged at the end of the screw rod.
4. A combination sofa chair according to claim 3, wherein: The screw rod is provided with two groups of screw threads corresponding to the screw holes of the two groups of mounting plates, and the screw threads are opposite in direction.
Citation Information
Patent Citations
Combined sofa
CN221813574U