Double-motor waist support device and mattress thereof

Abstract

The utility model relates to a double-motor waist supporting device which comprises a bedstead mounting plate, a plurality of lead screws are arranged on the bedstead mounting plate side by side, one end of each lead screw is independently connected with a driving motor, and the other ends of the lead screws are jointly connected with a waist supporting plate. The driving motors are located below the bed frame mounting plate, and all the driving motors work synchronously. The waist support device is stable in lifting and stable in use, can realize a waist supporting function at any lifting position, realizes more accurate support, not only improves the comfort degree, but also allows a user to flexibly adjust the shape of a mattress according to own requirements, and is particularly suitable for people needing additional waist support.

Description

Technical Field

[0001] This utility model relates to a lumbar support device and a mattress having the lumbar support device, and more particularly to a dual-motor lumbar support device and a mattress thereon, belonging to the technical field of bedding. Background Technology

[0002] The adjustable mattress market has grown rapidly in recent years, especially in the smart home sector. For people with special needs, such as the elderly or patients with chronic back pain, personalized support is needed to help improve their quality of life.

[0003] Traditional mattresses provide fixed lumbar support and cannot be adjusted to individual body shape, sleeping position, or health needs. This can lead to lower back discomfort and even long-term health problems such as back pain and scoliosis.

[0004] Existing adjustable mattresses have installed lumbar support devices, but due to their unreasonable structural design, the lumbar support is unstable and its use is unreliable. After being installed on the adjustable mattress, it can only support the waist at one angle and cannot meet the needs of supporting the waist at different angles.

[0005] Therefore, this utility model is proposed. Utility Model Content

[0006] To address the aforementioned technical problems in the prior art, the purpose of this utility model is to provide a dual-motor lumbar support device and its mattress. The dual-motor lumbar support device provides smooth lifting and stable operation, and can achieve lumbar support at any lifting position, providing more precise support. This not only improves comfort but also allows users to flexibly adjust the mattress shape according to their own needs, making it especially suitable for people who require additional lumbar support.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0008] A dual-motor lumbar support device includes a bed frame mounting plate, on which several lead screws are arranged in parallel. One end of each lead screw is individually connected to a drive motor, and the other end of each lead screw is connected to a top lumbar support plate. The drive motors are located below the bed frame mounting plate, and each drive motor operates synchronously.

[0009] There are two lead screws, one end of each lead screw is connected to a drive motor, and the other end of each lead screw is connected to the top waist support plate. The two drive motors work synchronously.

[0010] The lead screw is fitted with a support guide block on its outer side. The support guide block is fixed to the bed frame mounting plate. The support guide block has a through hole in its middle, through which the lead screw passes.

[0011] The drive motor includes a motor worm and a motor worm wheel that mesh with each other. The motor worm wheel is sleeved on a lead screw, and a limiting retaining ring is provided at the bottom end of the lead screw. The limiting retaining ring is located below the motor worm wheel. The motor worm wheel has internal threads, and the lead screw has external threads. The threads mesh with the external threads.

[0012] The upper end of the lead screw is provided with a connecting plate, which is connected to the top waist support plate.

[0013] The upper surface of the top waist support plate is arc-shaped.

[0014] A vibration massage motor is installed on the side of the connecting plate.

[0015] A mattress includes a bed frame and a dual-motor lumbar support device. The bed frame is equipped with a first bed board, a second bed board, a third bed board, a fourth bed board, and a fifth bed board that are movably connected. The dual-motor lumbar support device is installed on the second bed board and is located on the side of the second bed board that is closest to the third bed board. When in use, the dual-motor lumbar support device pushes out of the waist.

[0016] The dual-motor lumbar support device also includes a controller, which has stepless control function and controls the distance between the top lumbar support plate and the second bed board to any height between 4.2 cm and 14.2 cm.

[0017] The mattress width is 75-180cm.

[0018] The beneficial effects of this utility model are as follows:

[0019] This utility model's dual-motor lumbar support device and mattress, combining advanced mechanical design with ergonomic principles, provides users with a more scientific and comfortable sleep solution. It utilizes two independent drive motors working synchronously to raise and lower the lumbar support board, ensuring smooth lifting and stable use. Furthermore, the device's ingenious structure, installed on the second section of the adjustable mattress, rises and falls together with it, providing lumbar support at any position and achieving more precise support. This not only improves comfort but also allows users to flexibly adjust the mattress shape according to their needs, making it particularly suitable for those requiring additional lumbar support. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of this utility model from a bottom view.

[0022] Figure 3 This is a schematic diagram showing the relationship between the lead screw, the support guide block, and the motor worm gear in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the present invention in its flat position;

[0024] Figure 5 This is a structural diagram of the present invention in its top-waist position;

[0025] Figure 6 This is a schematic diagram of the structure of this utility model installed in a mattress;

[0026] Among them, 1 is a dual-motor lumbar support device, 11 is a bed frame mounting plate, 12 is a lead screw, 13 is a drive motor, 131 is a motor worm gear, 132 is a motor worm wheel, 1321 is a thread, 14 is a top lumbar support plate, 15 is a support guide block, 151 is a through hole, 16 is a connecting plate, 17 is a vibration massage motor, and 18 is a limit retaining ring.

[0027] 2 is the bed frame, 3 is the first bed board, 4 is the second bed board, 5 is the third bed board, 6 is the fourth bed board, and 7 is the fifth bed board. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0029] like Figure 1-5 As shown, the dual-motor lumbar support device 1 of this utility model includes a bed frame mounting plate 11. Several lead screws 12 are arranged side by side on the bed frame mounting plate 11. One end of each lead screw 12 is individually connected to a drive motor 13, and the other end of each lead screw 12 is connected to a top lumbar support plate 14. The drive motors 13 are located below the bed frame mounting plate 11, and each drive motor 13 works synchronously.

[0030] Preferably, this invention uses two lead screws 12. One end of each lead screw 12 is individually connected to a drive motor 13, and the other end of each lead screw 12 is equipped with a connecting plate 16. The connecting plate 16 connects to the top and waist support plate 14, thus enabling both lead screws 12 to be connected to the top and waist support plate 14, and the two drive motors 13 to operate synchronously. Each drive motor 13 has a built-in Hall sensor that can collect signals in real time and transmit the number of rotations to the CPU in the control box. The CPU processes the two signals (e.g., comparing the number of rotations). By adjusting the current of the corresponding drive motor 13, the rotation speed is changed to ensure that both drive motors 13 maintain the same number of rotations, thereby achieving synchronous operation of the drive motors 13. Accumulated errors may occur during the stroke. When the height difference between the two drive motors 13 reaches 2 cm, the system will stop working. At this time, simply press the reset button to return the system to zero and resume normal operation. Generally, a reset operation is performed after approximately 10,000 uses. The reset setting is achieved by pressing and holding the down button on the remote control for 5 seconds. The synchronous drive of the drive motor 13 in this utility model can be controlled by methods commonly used in the prior art. The specific control method is not the protection content of this utility model and will not be described in detail here.

[0031] Furthermore, a support guide block 15 is fitted around the outer side of the lead screw 12 in this invention, and the support guide block 15 is fixed on the bed frame mounting plate 11. A through hole 151 is provided in the middle of the support guide block 15, through which the lead screw 12 passes. The diameter of the through hole 151 is slightly larger than the diameter of the lead screw 12. When the lead screw 12 moves up and down, the guide support block 15 can restrict the displacement of the lead screw 12 in all directions, making the up-and-down movement of the lead screw 12 more stable. The drive motor 13 includes a meshing motor worm gear 131 and a motor worm wheel 132. The motor worm wheel 132 is fitted onto the lead screw 12, and a limiting retaining ring 18 is provided at the bottom end of the lead screw 12, located below the motor worm wheel 132. The motor worm wheel 132 has an internal thread 1321, and the lead screw 12 has an external thread, with the thread 1321 meshing with the external thread.

[0032] In use, the motor worm gear 131 rotates, driving the motor worm wheel 132 to rotate. At this time, the motor worm wheel 132 has a thread 1321 that mates with the lead screw 12. When the motor worm wheel 132 rotates, it drives the lead screw 12 to move up and down linearly. One end of the lead screw 12 is fixed to the top waist support plate 14, and the other end is equipped with a limit ring 18. When the lead screw 12 moves up and down, it drives the top waist support plate 14 to move up and down, performing the waist support function. At the same time, the limit ring 18 at the other end can prevent the lead screw 12 from leaving the range of motion.

[0033] To enhance user comfort, this invention incorporates a vibration massage motor 17 mounted on the side of the connecting plate 16, allowing for simultaneous lumbar massage while the user receives the lumbar support. Furthermore, the upper surface of the lumbar support plate 14 is curved and made of glass fiber reinforced nylon, which is more ergonomic and conforms better to the curvature of the human waist. Glass fiber reinforced nylon is a blend of nylon with added glass fiber and toughening agents. As the glass fiber content increases, the tensile and flexural strength of the material can be significantly improved, while impact strength is more complex due to multiple factors. The addition of toughening agents also significantly improves the material's toughness. Optimal comprehensive mechanical properties are achieved when 30%–35% glass fiber and 8%–12% toughening agent are added.

[0034] The synchronous drive of the drive motor 13 in this utility model can be controlled by methods commonly used in the prior art. The specific control method is not the protected content of this utility model and will not be described in detail here.

[0035] like Figure 6 As shown, the mattress of this utility model includes a bed frame 2, on which a first bed board 3, a second bed board 4, a third bed board 5, a fourth bed board 6, and a fifth bed board 7 are movably connected. A dual-motor lumbar support device 1 is installed on the second bed board 4, and the dual-motor lumbar support device 1 is located on the side of the second bed board 4 closest to the third bed board 5. In use, the lumbar support device 1 supports the lower back. The mattress of this utility model also includes a controller, which can adjust the distance between the lumbar support plate 14 and the second bed board 4, ranging from 4.2 cm to 14.2 cm. The initial distance between the lumbar support plate 14 and the second bed board 4 is preferably 4.2 cm, and the travel provided by the lead screw 12 is preferably 10 cm. Furthermore, the adjustment process will not affect the mattress padding material, nor will it cause damage or breakage. The mattress width can range from 75-180 cm, such as 75cm, 90cm, 100cm, 110cm, 120cm, 150cm, 160cm, 170cm, or 180cm. When the width is too small, the dual-motor lumbar support device 1 occupies too large a proportion of the mattress area, which will cause discomfort to the user. When the mattress width is too large, the dual-motor lumbar support device 1 occupies too small a proportion of the mattress area, which makes it inconvenient for the user to find the appropriate position of the lumbar support board 14. Therefore, when the mattress width is preferably 75-180cm, the proportion of the dual-motor lumbar support device 1 in the mattress area is the most moderate, and the lumbar support board 14 is located right at the user's waist after lying down, making it very convenient to use.

[0036] This utility model features a dual-motor lumbar support device 1 that provides smooth lifting and stable operation, and can support the lumbar region at any lifting position for more precise support. This not only improves comfort but also allows users to flexibly adjust the mattress shape according to their needs, making it especially suitable for people who require additional lumbar support.

[0037] In addition, the dual-motor lumbar support device 1 in this utility model can also be applied to electric chairs, electric beds or electric chairs. When the back is bent at any angle, the height of the top lumbar support plate 14 can be adjusted at any time. The purpose is to make different lumbar vertebrae (such as lumbar vertebrae changes in different age groups, individual differences in lumbar vertebrae curvature, etc.) fit completely with the mattress, effectively support the waist, and avoid the lumbar spine being suspended and thus causing various discomforts.

[0038] The above embodiments are only used to explain the inventive concept of this utility model, and are not intended to limit the protection of this utility model. Any non-substantial modifications made to this utility model using this concept should fall within the protection scope of this utility model.

Claims

1. A dual-motor lumbar support device, characterized by: The bed frame mounting plate is provided with a plurality of lead screws in parallel, one end of each lead screw is separately connected with a driving motor, and the other end of each lead screw is commonly connected with a waist supporting plate; the driving motor is located below the bed frame mounting plate, and each driving motor works synchronously.

2. The dual-motor lumbar support device of claim 1, wherein: The two lead screws are separately connected with driving motors at one end and commonly connected with the waist supporting plate at the other end, and the two driving motors work synchronously.

3. The dual-motor lumbar support device of claim 1 or 2, wherein: The lead screw is externally sleeved with a supporting guide block which is fixed on the bed frame mounting plate, the middle part of the supporting guide block is provided with a through hole, and the lead screw passes through the through hole.

4. The dual-motor lumbar support device of claim 3, wherein: The driving motor comprises a motor worm and a motor worm wheel which are engaged with each other, the motor worm wheel is sleeved on the lead screw, the bottom end of the lead screw is provided with a limiting stop ring which is located below the motor worm wheel, the inside of the motor worm wheel is provided with a thread, the lead screw is provided with an external thread, and the thread and the external thread are engaged.

5. The dual-motor lumbar support device of claim 1 or 2, wherein: The upper end of the lead screw is provided with a connecting plate which is connected with the waist supporting plate.

6. The dual-motor lumbar support device of claim 1, wherein: The upper surface of the waist supporting plate is arc-shaped.

7. The dual-motor lumbar support device of claim 5, wherein: The side part of the connecting plate is provided with a vibration massage motor.

8. A mattress characterized by: The bed frame is provided with a first section of bed plate, a second section of bed plate, a third section of bed plate, a fourth section of bed plate and a fifth section of bed plate which are movably connected, the double-motor waist supporting device is installed on the second section of bed plate and located on the side close to the third section of bed plate, and the double-motor waist supporting device is used to support the waist.

9. The mattress of claim 8, wherein: The double-motor waist supporting device further comprises a controller which has a stepless control function and controls the distance between the waist supporting plate and the second section of bed plate to be any height between 4.2 cm and 14.2 cm.

10. The mattress of claim 8, wherein: The width of the mattress is 75-180 cm.

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