High-elasticity sofa
By using a core layer of TPU padding, honeycomb silicone, and high-density sponge in the sofa, combined with a pressure sensing system and airbag adjustment, the problem of insufficient elasticity in traditional sofas is solved, achieving highly elastic and comfortable posture adjustment and preventing scoliosis.
Patent Information
- Application Number
- CN202520557597.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Traditional sofas lack elasticity, which can easily cause discomfort to users when sitting for long periods of time, especially for those with bad habits such as scoliosis.
The sofa cushion features an inner core composed of a TPU padding layer, a honeycomb silicone layer, and a high-density sponge layer. It is equipped with a pressure sensing system, including a first piezoelectric film sensor and an airbag. The airbag pressure is adjusted by a controller and a micro air pump, and the user's posture is fed back by a lifting mechanism and a display screen to ensure balanced pressure distribution.
It achieves high elasticity and comfort, can detect the user's sitting posture and automatically adjust the airbag pressure to avoid scoliosis caused by unilateral force, and provide better support and repositioning ability.
Smart Images

Figure CN223886579U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sofa structure, specifically relating to a highly elastic sofa. Background Technology
[0002] A sofa (called a couch in North America) is a type of upholstered furniture, a multi-seat chair with armrests. Originating in Western countries, it was later introduced to Asia and became a key element of Western-style décor and modern home design. The frame is made of wood or steel, lined with cotton or other foam materials, making it generally comfortable. A sofa is a single or multi-seat chair with cushions; traditional sofas lack elasticity, and sitting on them for extended periods can cause discomfort. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this utility model provides a highly elastic sofa.
[0004] To achieve the above objectives, the present invention provides the following technical solution:
[0005] A highly elastic sofa includes a sofa body with a sofa cushion at its upper end. The sofa cushion includes an inner core layer, an outer leather layer, and a support plate. The outer leather layer is wrapped around the upper end of the support plate. The inner core layer is disposed within the outer leather layer and includes a TPU pad layer, a honeycomb silicone layer, and a high-density sponge layer. The TPU pad layer is disposed above the honeycomb silicone layer, and the high-density sponge layer is disposed below the honeycomb silicone layer. A pressure sensing system is provided inside the sofa cushion. The pressure sensing system includes a plurality of first piezoelectric film sensors and a plurality of first airbags. The first piezoelectric film sensors are disposed between the honeycomb silicone layer and the high-density sponge layer, and the first airbags are disposed between the TPU pad layer and the honeycomb silicone layer.
[0006] Furthermore, the pressure sensing system includes a controller and several first micro air pumps. The lower end of the sofa body is provided with a first mounting cavity. The controller and the first micro air pumps are disposed in the first mounting cavity. The first micro air pumps and the first airbags are connected one-to-one through first air tubes. The first micro air pumps and the first piezoelectric film sensor are both electrically connected to the controller. The support plate is provided with several first clearance holes, which match the first air tubes.
[0007] Furthermore, the pressure sensing system includes a display screen, which is electrically connected to the controller. The sofa body has armrests at both ends, and the display screen is located at the top of the armrests. The controller has a Bluetooth module for establishing a communication connection with a mobile device.
[0008] Furthermore, the front end of the sofa body is provided with a sofa backrest, the lower end of the sofa backrest is provided with a sofa lumbar cushion, and the first mounting cavity is provided with a lifting mechanism. The lifting mechanism includes a plurality of first cylinders, and the rear end of the first cylinder is hinged to a first support rod. The rear end of the first support rod is hinged to the front end of the sofa lumbar cushion.
[0009] Furthermore, the sofa lumbar cushion is provided with a plurality of second piezoelectric film sensors, and the second pressure pad film sensors are electrically connected to the controller.
[0010] The present invention discloses a high-elasticity sofa, which, compared with the prior art, has the following advantages: it is highly elastic and can detect the pressure when the user sits on it, avoiding unilateral pressure that could lead to bad habits such as scoliosis, and is more comfortable and reliable. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.
[0012] Figure 2 This is a schematic diagram of the structure of the first mounting cavity in a preferred embodiment of the present invention.
[0013] Figure 3 This is a schematic diagram of a partial structure of a preferred embodiment of the present invention.
[0014] Figure 4 This is a structural schematic diagram of a sofa cushion according to a preferred embodiment of the present invention.
[0015] The reference numerals in the attached drawings include: 100, sofa body; 110, first mounting cavity; 120, first micro air pump; 200, sofa armrest; 210, display screen; 300, sofa backrest; 400, sofa lumbar cushion; 410, first cylinder; 420, first support rod; 430, second piezoelectric film sensor; 500, sofa seat cushion; 510, first support plate; 511, first clearance hole; 520, high-density sponge layer; 530, honeycomb silicone layer; 540, TPU padding layer; 550, outer leather layer; 560, first piezoelectric film sensor; 570, first airbag. Detailed Implementation
[0016] This utility model discloses a highly elastic sofa. The specific implementation of this utility model will be further described below with reference to preferred embodiments.
[0017] See attached diagram. Figure 1-4 , Figure 1 yes Figure 1 This is a schematic diagram of the structure of a preferred embodiment provided by this utility model. Figure 2 This is a schematic diagram of the structure of the first mounting cavity in a preferred embodiment of the present invention. Figure 3 This is a partial structural diagram of a preferred embodiment A provided by this utility model. Figure 4 This is a structural schematic diagram of a sofa cushion according to a preferred embodiment of the present invention.
[0018] Preferred embodiment.
[0019] This embodiment provides a highly elastic sofa, including a sofa body, with a sofa cushion at the upper end of the sofa body. The sofa cushion includes an inner core layer, an outer leather layer, and a support plate. The outer leather layer is wrapped around the upper end of the support plate, and the inner core layer is disposed inside the outer leather layer. The inner core layer includes a TPU pad layer, a honeycomb silicone layer, and a high-density sponge layer. The TPU pad layer is disposed at the upper end of the honeycomb silicone layer, and the high-density sponge layer is disposed at the lower end of the honeycomb silicone layer. A pressure sensing system is provided inside the sofa cushion. The pressure sensing system includes a plurality of first piezoelectric film sensors and a plurality of first airbags. The first piezoelectric film sensors are disposed between the honeycomb silicone layer and the high-density sponge layer, and the first airbags are disposed between the TPU pad layer and the honeycomb silicone layer.
[0020] Furthermore, the pressure sensing system includes a controller and several first micro air pumps. The lower end of the sofa body is provided with a first mounting cavity. The controller and the first micro air pumps are disposed in the first mounting cavity. The first micro air pumps and the first airbags are connected one-to-one through first air tubes. The first micro air pumps and the first piezoelectric film sensor are both electrically connected to the controller. The support plate is provided with several first clearance holes, which match the first air tubes.
[0021] Furthermore, the pressure sensing system includes a display screen, which is electrically connected to the controller. The sofa body has armrests at both ends, and the display screen is located at the top of the armrests. The controller has a Bluetooth module for establishing a communication connection with a mobile device.
[0022] Furthermore, the front end of the sofa body is provided with a sofa backrest, the lower end of the sofa backrest is provided with a sofa lumbar cushion, and the first mounting cavity is provided with a lifting mechanism. The lifting mechanism includes a plurality of first cylinders, and the rear end of the first cylinder is hinged to a first support rod. The rear end of the first support rod is hinged to the front end of the sofa lumbar cushion.
[0023] Furthermore, the sofa lumbar cushion is provided with a plurality of second piezoelectric film sensors, and the second pressure pad film sensors are electrically connected to the controller.
[0024] Working principle: When a user sits or reclines on the high-elasticity sofa, the first piezoelectric film sensor detects the force applied to the user's legs and hips, while the second piezoelectric film sensor detects the force applied to the user's lower back. By receiving signals and feedback through the controller, it can detect whether the user experiences excessive force on one side, preventing unilateral strain that could lead to scoliosis. When significant unilateral force is detected, and if the set time is not adjusted, the first micro-air pump inflates the first airbag through the first air tube, ensuring balanced force on both sides of the user.
[0025] Meanwhile, the sofa cushion is supported by the first support plate. The outer leather layer wraps a TPU pad layer, a honeycomb silicone layer, and a high-density sponge layer. The high-density sponge layer can ensure the support capacity of the sofa cushion, while the TPU pad layer and the honeycomb silicone layer can ensure the high elasticity and recovery capacity of the sofa cushion, that is, it can fit the body more when the user sits down and can quickly recover when the user leaves.
[0026] It is worth mentioning that the technical features such as the Bluetooth module involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control methods and spatial arrangement of these technical features can be adopted by conventional choices in the field, and should not be regarded as the utility model point of this utility model patent. This utility model patent will not be further elaborated in detail.
[0027] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A highly elastic sofa, characterized in that, The sofa includes a main body, with a sofa cushion on its upper part. The sofa cushion includes an inner core layer, an outer leather layer, and a support plate. The outer leather layer is wrapped around the upper part of the support plate. The inner core layer is disposed inside the outer leather layer. The inner core layer includes a TPU pad layer, a honeycomb silicone layer, and a high-density sponge layer. The TPU pad layer is disposed above the honeycomb silicone layer, and the high-density sponge layer is disposed below the honeycomb silicone layer. The sofa cushion is equipped with a pressure sensing system. The pressure sensing system includes several first piezoelectric film sensors and several first airbags. The first piezoelectric film sensors are disposed between the honeycomb silicone layer and the high-density sponge layer, and the first airbags are disposed between the TPU pad layer and the honeycomb silicone layer.
2. The high-elasticity sofa according to claim 1, characterized in that, The pressure sensing system includes a controller and several first micro air pumps. The lower end of the sofa body is provided with a first mounting cavity. The controller and the first micro air pumps are disposed in the first mounting cavity. The first micro air pumps and the first airbags are connected one-to-one through first air tubes. The first micro air pumps and the first piezoelectric film sensor are both electrically connected to the controller. The support plate is provided with several first clearance holes, which are matched with the first air tubes.
3. The high-elasticity sofa according to claim 2, characterized in that, The pressure sensing system includes a display screen, which is electrically connected to the controller. The sofa body has armrests at both ends, and the display screen is located on the upper part of the armrests. The controller has a Bluetooth module, which is used to establish a communication connection with a mobile device.
4. The high-elasticity sofa according to claim 3, characterized in that, The front end of the sofa body is provided with a sofa backrest, and the lower end of the sofa backrest is provided with a sofa lumbar cushion. The first mounting cavity is provided with a lifting mechanism, which includes a plurality of first cylinders. The rear end of the first cylinder is hinged to a first support rod, and the rear end of the first support rod is hinged to the front end of the sofa lumbar cushion.
5. The high-elasticity sofa according to claim 4, characterized in that, The sofa lumbar cushion is equipped with several second piezoelectric film sensors, which are electrically connected to the controller.