Intelligent sofa with hidden movable base

Abstract

The utility model relates to an intelligent sofa with a hidden movable base. The intelligent sofa comprises an intelligent sofa body and a base, the base is composed of a plurality of supporting legs / supporting blocks and a supporting bottom frame, at least two pairs of lifting assemblies are arranged on the supporting bottom frame, and each lifting assembly comprises a first overturning rod, a second overturning rod, a horizontal lifting base, a plurality of universal rolling wheels arranged at the bottom of the horizontal lifting base and an electric cylinder. The electric cylinder is connected with a power supply in the intelligent sofa body, and the first overturning rod, the second overturning rod and the horizontal lifting seat form a four-connecting-rod mechanism relative to the supporting bottom frame. According to the intelligent sofa, the lifting of the horizontal lifting seat can be realized by controlling the extension and retraction of the electric cylinder, when the horizontal lifting seat descends to the lowest position, the universal rollers are propped against the ground and the supporting legs / supporting blocks are lifted away from the ground, the intelligent sofa body is supported by the universal rollers to facilitate universal translation, and the horizontal lifting seat can be reset after the movement is completed; therefore, the stress time of the universal roller is short, and the service life can be greatly prolonged.

Description

Technical Field

[0001] This utility model relates to a smart sofa, and more particularly to a smart sofa with a hidden movable base. Background Technology

[0002] Smart sofas, also known as electric sofas, functional sofas, or smart sofa beds, are sofa products that build upon traditional sofa designs by integrating information technology, microelectronics, sensor technology, mechanical technology, and intelligent control. They combine electronic and mechanical intelligence with superior materials and craftsmanship to achieve a variety of specific functions. These functions include, but are not limited to, automatic adjustment of position and angle, AI-based firmness adjustment, lumbar support, massage and relaxation, microclimate regulation (such as intelligent heating and ventilation), and health monitoring (such as real-time monitoring of heart rate, respiration, and sleep status).

[0003] However, precisely because of the integration of numerous electronic control functions, smart sofas are also quite heavy, making it difficult for the elderly to move or adjust their position. Some sofas use casters at the bottom for easier movement, but due to the sofa's weight and frequent use by multiple people, these casters are prone to damage. Therefore, the difficulty in moving smart sofas has become a pressing issue for the sofa manufacturing industry. Summary of the Invention

[0004] This invention provides a smart sofa with a hidden movable base, solving the problem in the prior art where smart sofas are too heavy to move easily.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: A smart sofa with a hidden movable base, including a smart sofa body and a base at its bottom, the base being composed of several support legs / support blocks and a support frame, characterized in that: at least two lifting components are provided on the support frame, the lifting components including a first flip rod, a second flip rod, a horizontal lifting seat, several universal rollers provided at the bottom of the horizontal lifting seat, and an electric cylinder, the electric cylinder being connected to a power source inside the smart sofa body, one end of each of the two flip rods being rotatably connected to the support frame, and the other end of each of the two flip rods being rotatably connected to the horizontal lifting seat, the first flip rod, the second flip rod, and the horizontal lifting seat forming a parallelogram four-bar linkage relative to the support frame, the electric cylinder being hinged relative to the support frame, and the top rod of the electric cylinder being hinged to the horizontal lifting seat or the flip rod; when the top rod of the electric cylinder extends, it will drive the four-bar linkage to flip downward and cause the horizontal lifting seat to move downward until all the universal rollers abut against the ground and lift the support legs / support blocks off the ground.

[0006] This invention controls the height of the horizontal lifting seat by controlling the extension and retraction of the electric cylinder. Specifically, when the electric cylinder is fully retracted, the extension length of the cylinder's top rod is at its shortest, the four-bar linkage is in a compressed state, and the horizontal lifting seat is at its highest position. Therefore, the universal rollers are retracted into the base and do not contact the ground. At this time, the smart sofa body is supported by the support legs / support blocks. When the electric cylinder extends the top rod in a controlled manner, the four-bar linkage begins to rotate and deform downwards, and the horizontal lifting seat begins to descend to one side of the ground until the universal rollers contact the ground and lift the support legs / support blocks off the ground. At this time, the smart sofa body is supported by the universal rollers, and all lifting components deform synchronously, ensuring that the smart sofa is always in a horizontal state.

[0007] Furthermore, a tilting seat is rotatably connected to the bottom of the horizontal lifting seat. The rotation axis of the tilting seat is parallel to the rotation axis of the four-bar linkage, and all the universal rollers are fixed to the bottom of the tilting seat. The center of gravity of the tilting seat and its rotation axis tend to be in a vertical plane, so the tilting seat can remain in a nearly horizontal state when it is suspended. Since the ground cannot be guaranteed to be level, if the universal rollers are directly fixed to the bottom of the horizontal lifting seat, it cannot be guaranteed that all the universal rollers will be in contact with the ground, resulting in some universal rollers being subjected to particularly large forces, which can easily lead to damage to the universal rollers. Therefore, this utility model fixes the universal rollers to the tilting seat, and the tilting seat can adaptively tilt, thereby allowing as many universal rollers as possible to contact the ground and avoiding the situation where some universal rollers are subjected to particularly large forces.

[0008] Furthermore, a limiting rod is fixedly connected to the supporting base. When the electric cylinder pushes the four-bar linkage to flip downwards, the horizontal lifting seat can descend to abut against the limiting rod. The limiting rod is provided with limiting parts that can limit the two sides of the horizontal lifting seat, and the limiting direction of the limiting parts is parallel to the rotation axis of the four-bar linkage. The four-bar linkage has a good anti-flip effect under the support of the electric cylinder, but it does not have a force-bearing effect against forces perpendicular to its flipping direction. Therefore, this utility model adds limiting parts that can limit the two sides of the horizontal lifting seat. In this way, during the movement of the smart sofa body, no matter how it is moved, the four-bar linkage can be well fixed.

[0009] Therefore, this utility model has the following characteristics compared with the prior art: 1. This utility model can realize the lifting and lowering of the horizontal lifting seat by controlling the extension and retraction of the electric cylinder. When the horizontal lifting seat is lowered to the lowest position, the universal rollers abut against the ground and lift the support feet / support blocks off the ground. At this time, the smart sofa body is supported by the universal rollers, which facilitates universal horizontal movement. After the movement is completed, the horizontal lifting seat can be reset. In this way, the universal rollers are subjected to force for a short time and their service life can be greatly extended. Attached Figure Description

[0010] Appendix Figure 1 This is a schematic diagram of the structure of this utility model in a moving state;

[0011] Appendix Figure 2 This is a schematic diagram of the base of this utility model in use.

[0012] Appendix Figure 3 This is a schematic diagram of a four-bar linkage;

[0013] Appendix Figure 4 This is a schematic diagram of the structure when the limit rod and the horizontal lifting seat are in contact. Detailed Implementation

[0014] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0015] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0016] Example 1: See Figure 1 , Figure 2 and Figure 3 A smart sofa with a concealed movable base includes a smart sofa body 10 and a base 20 at its bottom. The base consists of six support blocks 100 and a support frame 200. The support frame is equipped with two lifting components 300 that are mirror images of each other. The lifting components include a first flip rod 310, a second flip rod 320, a horizontal lifting seat 330, four universal rollers 340 located at the bottom of the horizontal lifting seat, and an electric cylinder 350. The electric cylinder is connected to a power source inside the smart sofa body. One end of each of the two flip rods is rotatably connected to the support frame, and the other end of each of the two flip rods is rotatably connected to the horizontal lifting seat. The first flip rod, the second flip rod, and the horizontal lifting seat form a parallelogram-shaped four-bar linkage relative to the support frame. The electric cylinder is hinged relative to the support frame, and the top rod of the electric cylinder is hinged to the horizontal lifting seat or the flip rod. When the top rod of the electric cylinder extends, it drives the four-bar linkage to flip downward and causes the horizontal lifting seat to move downward until all the universal rollers contact the ground and lift the support blocks off the ground.

[0017] See Figure 3The bottom of the horizontal lifting platform is rotatably connected to a tilting base 360°. The rotation axis of the tilting base is parallel to the rotation axis of the four-bar linkage, and all the universal rollers are fixed to the bottom of the tilting base. The center of gravity of the tilting base and its rotation axis tend to be in a vertical plane, so the tilting base can remain in a nearly horizontal state when it is suspended. Since the ground cannot be guaranteed to be level, if the universal rollers are directly fixed to the bottom of the horizontal lifting platform, it cannot be guaranteed that all the universal rollers will be in contact with the ground, resulting in some universal rollers being subjected to particularly large forces, which can easily lead to damage to the universal rollers. Therefore, in this embodiment, the universal rollers are fixed to the tilting base, and the tilting base can adaptively tilt, thereby allowing as many universal rollers as possible to contact the ground and avoiding the situation where some universal rollers are subjected to particularly large forces.

[0018] See Figure 4 A limiting rod 210 is also fixedly connected to the support base. When the electric cylinder pushes the four-bar linkage to flip downwards, the horizontal lifting seat can descend to abut against the limiting rod. The limiting rod is provided with limiting parts 211 that can limit the two sides of the horizontal lifting seat. The limiting direction of the limiting parts is parallel to the rotation axis of the four-bar linkage. The four-bar linkage has a good anti-flip effect under the support of the electric cylinder, but it does not have the effect of bearing force perpendicular to its flipping direction. Therefore, this embodiment adds limiting parts that can limit the two sides of the horizontal lifting seat. In this way, the four-bar linkage can be well fixed no matter how the smart sofa body is moved.

[0019] See Figure 3 Two first and two second flip rods are provided and symmetrically distributed on both sides of the horizontal lifting seat. A connecting rod 321 is fixed between the two second flip rods, and the top rod of the electric cylinder is rotatably connected to the connecting rod.

[0020] See Figure 2 The four sides of the supporting base are covered with baffles 220, and the entire lifting assembly is located within the baffle area.

[0021] This embodiment controls the height of the horizontal lifting seat by controlling the extension and retraction of the electric cylinder. Specifically, when the electric cylinder is fully retracted, the extension length of the cylinder's top rod is at its shortest, the four-bar linkage is in a compressed state, and the horizontal lifting seat is at its highest position. Therefore, the universal rollers are retracted into the base and do not contact the ground. At this time, the smart sofa body is supported by the support block. When the electric cylinder extends the top rod in a controlled manner, the four-bar linkage begins to rotate and deform downwards, and the horizontal lifting seat begins to descend to one side of the ground until the universal rollers contact the ground and lift the support block off the ground. At this time, the smart sofa body is supported by the universal rollers, and all lifting components deform synchronously to ensure that the smart sofa is always in a horizontal state.

[0022] This invention can be modified in many ways, as will be apparent to those skilled in the art, and such modifications are not considered to depart from the scope of this invention. All such modifications that are obvious to those skilled in the art are included within the scope of these claims.

Claims

1. A smart sofa with a concealed movable base, comprising a smart sofa body and a base at its bottom, the base being composed of a plurality of support legs / support blocks and a support frame, characterized in that: The support base is equipped with at least two lifting assemblies. Each lifting assembly includes a first tilting rod, a second tilting rod, a horizontal lifting seat, several omnidirectional rollers located at the bottom of the horizontal lifting seat, and an electric cylinder. One end of each of the two tilting rods is rotatably connected to the support base, and the other end of each of the two tilting rods is rotatably connected to the horizontal lifting seat. The first tilting rod, the second tilting rod, and the horizontal lifting seat form a parallelogram-shaped four-bar linkage relative to the support base. The electric cylinder is hinged relative to the support base, and the top rod of the electric cylinder is hinged to the horizontal lifting seat or the tilting rod. When the top rod of the electric cylinder extends, it will drive the four-bar linkage to tilt downward and cause the horizontal lifting seat to tilt downward until all the omnidirectional rollers abut against the ground and lift the support foot / support block off the ground.

2. The smart sofa with a hidden movable base according to claim 1, characterized in that: The bottom of the horizontal lifting seat is rotatably connected to a flipping seat, the rotation axis of the flipping seat is parallel to the rotation axis of the four-bar linkage, and the universal rollers are all fixed to the bottom of the flipping seat.

3. The smart sofa with a hidden movable base according to claim 1 or 2, characterized in that: A limiting rod is also fixedly connected to the support base. When the electric cylinder pushes the four-bar linkage to flip downward, the horizontal lifting seat can descend to abut against the limiting rod. The limiting rod is provided with a limiting part that can limit the two sides of the horizontal lifting seat. The limiting direction of the limiting part is parallel to the rotation axis of the four-bar linkage.

4. The smart sofa with a hidden movable base according to claim 1, characterized in that: Two of each of the first and second flipping rods are provided and symmetrically distributed on both sides of the horizontal lifting seat. A connecting rod is fixedly connected between the two second flipping rods, and the top rod of the electric cylinder is rotatably connected to the connecting rod.

5. The smart sofa with a hidden movable base according to claim 1, characterized in that: The four sides of the supporting base are covered with shielding plates, and the entire lifting assembly is located within the shielding area of ​​the shielding plates.

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