Single-motor waist support device and mattress thereof

Abstract

The invention relates to a single-motor waist supporting device which comprises a bed frame connecting plate, a driving motor is arranged on the bed frame connecting plate, a transmission rod is arranged at the output end of the driving motor and penetrates through the output end, lifting assemblies are arranged at the two ends of the transmission rod, the upper ends of the lifting assemblies are connected with a waist supporting plate, and each lifting assembly comprises a lead screw. The lower end of the lead screw penetrates through the bed frame connecting plate and ascends and descends in the bed frame connecting plate. The waist support device is stably lifted by adopting one driving motor, so that the use is stable and the cost is relatively low; in addition, the waist supporting function at any lifting position can be achieved, more accurate supporting is achieved, the comfort degree is improved, a user is allowed to flexibly adjust the shape of the mattress according to the needs of the user, and the mattress is particularly suitable for being used by people needing additional waist supporting.

Description

Technical Field

[0001] The present invention relates to a lumbar support device and a mattress having the lumbar support device, and more particularly to a single-motor lumbar support device and a mattress thereof, belonging to the technical field of bedding. Background Art

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

[0003] Among the existing liftable mattresses, lumbar support devices are installed. However, due to unreasonable structural settings, the lumbar support is unstable in use or the cost is relatively high, making it impossible to be popularized. Moreover, after being installed on the liftable mattress, it can only provide lumbar support at one angle and cannot meet the lumbar support requirements at different angles.

[0004] Therefore, the present invention is proposed. Summary of the Invention

[0005] Aiming at the above technical problems in the prior art, the purpose of the present invention is to provide a single-motor lumbar support device and a mattress thereof. It uses one driving motor to achieve the stable lifting of the lumbar support device, with stable use and low cost. It can also realize the lumbar support function at any lifting position, providing more precise support, not only improving the comfort, but also allowing users to flexibly adjust the shape of the mattress according to their own needs, especially suitable for people who need additional lumbar support.

[0006] To achieve the above object, the present invention is realized by the following technical solutions: A single-motor lumbar support device includes a bed frame connecting plate, on which a driving motor is provided. The output end of the driving motor is provided with a transmission rod, the transmission rod passes through the output end, and both ends of the transmission rod are provided with lifting components. The upper end of the lifting component is connected with a lumbar support plate, and the lifting component includes a lead screw. The lower end of the lead screw passes through the bed frame connecting plate and moves up and down within the bed frame connecting plate.

[0007] A worm gear is provided in the output end, the transmission rod is fixed within the worm gear, the driving motor is provided with a worm, and the worm gear meshes with the worm.

[0008] A first transmission gear is provided at the end of the transmission rod, a second transmission gear is provided at the end of the lead screw, the first transmission gear and the second transmission gear mesh with each other, and a housing is provided outside the first transmission gear and the second transmission gear.

[0009] A screw sleeve is installed below the described bed frame connecting plate. The lead screw is inserted into the screw sleeve, and a limit retaining ring is provided at the lower end of the lead screw. The limit retaining ring is located below the screw sleeve. The screw sleeve mounting parts are installed on both sides of the screw sleeve, and the screw sleeve mounting parts are fixed below the bed frame connecting plate.

[0010] The upper end of the lifting assembly is provided with a connecting plate. The connecting plate is installed below the top lumbar support plate, and a vibration massage motor is provided on one side of the connecting plate.

[0011] The upper surface of the top lumbar support plate is arc-shaped.

[0012] The upper surface of the top lumbar support plate is made of glass fiber reinforced nylon. The glass fiber reinforced nylon is nylon added with 30% - 35% glass fiber and 8% - 12% toughening agent.

[0013] A mattress includes a bed frame and a single-motor lumbar support device. The bed frame is installed 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 single-motor lumbar support device is installed on the second bed board, and the single-motor lumbar support device is located on the side where the second bed board is close to the third bed board. When in use, the single-motor lumbar support device jacks out the waist.

[0014] The described single-motor lumbar support device further includes a controller. The controller has a stepless control function and controls the distance between the top lumbar support plate and the second bed board to be any height between 4.2 cm and 14.2 cm.

[0015] The width of the mattress is 75 - 180 cm.

[0016] The beneficial effects of the present invention are as follows: The single-motor lumbar support device and its mattress of the present invention, by combining advanced mechanical design and ergonomic principles, provide a more scientific and comfortable sleep solution for users. It drives a transmission rod through a driving motor, thereby driving the lead screws at both ends of the transmission rod to move up and down, realizing the lifting of the top lumbar support plate, making the lifting stable, the use stable, and the cost low; and the structure of the lumbar support device is delicate. After being installed on the second bed board of the liftable mattress, it rises and falls together with the second bed board, realizing the top lumbar function at any lifting position, achieving more accurate support, not only improving the comfort, but also allowing users to flexibly adjust the shape of the mattress according to their own needs, especially suitable for the use of people who need extra lumbar support. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the present invention; Figure 2 is an exploded structural schematic diagram of the present invention; Figure 3Schematic diagram of the internal structure of the output end of the drive motor in the present invention; Figure 4 Schematic diagram of the internal structure of the lifting component in the present invention; Figure 5 Schematic diagram of the structure of the present invention installed on the mattress; Among them, 1 is a single-motor lumbar support device, 11 is a bed frame connecting plate, 12 is a drive motor, 121 is a worm, 13 is the output end, 131 is a worm gear, 14 is a transmission rod, 15 is a lifting component, 151 is a lead screw, 152 is a first transmission gear, 153 is a second transmission gear, 154 is a housing, 16 is a top lumbar support plate, 17 is a nut sleeve, 18 is a limit retaining ring, 19 is a nut sleeve mounting part, 110 is a connecting plate, 111 is a vibration massage motor, 2 is a bed frame, 3 is the first section of the bed board, 4 is the second section of the bed board, 5 is the third section of the bed board, 6 is the fourth section of the bed board, 7 is the fifth section of the bed board. Detailed implementation manners

[0018] The present invention will be further described below in conjunction with specific embodiments, but the protection scope of the present invention is not limited thereto.

[0019] As Figures 1-4 shown, the single-motor lumbar support device 1 of the present invention includes a bed frame connecting plate 11. A drive motor 12 is provided on the bed frame connecting plate 11. The drive motor 12 is installed in a motor installation groove 20. The drive motor 12 has an output end 13. A worm gear 131 is provided inside the output end 13. A transmission rod 14 is fixed inside the worm gear 131, and both ends of the transmission rod 14 pass through the worm gear 131. The drive motor 12 is provided with a worm 121, and the worm gear 131 meshes with the worm 121.

[0020] Both ends of the transmission rod 14 are provided with a lifting component 15. The lifting component 15 includes a lead screw 151. A first transmission gear 152 is provided at the end of the transmission rod 14. A second transmission gear 153 is provided at the end of the lead screw 151. The first transmission gear 152 meshes with the second transmission gear 153, and a housing 154 is provided outside the first transmission gear 152 and the second transmission gear 153.

[0021] A connecting plate 110 is provided at the upper end of the lifting component 15. The connecting plate 110 is installed below the top lumbar support plate 16, that is, the lifting component 15 is connected to the top lumbar support plate 16 through the connecting plate 110. A nut sleeve 17 is installed below the bed frame connecting plate 11. Both sides of the nut sleeve 17 are provided with nut sleeve mounting parts 19, and the nut sleeve mounting parts 19 are fixed below the bed frame connecting plate 11. The lower end of the lead screw 151 passes through the bed frame connecting plate 11 and is inserted into the nut sleeve 17. The nut sleeve 17 is provided with an internal thread that meshes with the external thread of the lead screw 151 to drive the lead screw 151 to move up and down. A limit retaining ring 18 is provided at the lower end of the lead screw 151, and the limit retaining ring 18 is located below the nut sleeve 17.

[0022] When in use, after the driving motor 12 is working, the worm 121 rotates, driving the worm wheel 131 to rotate, thereby driving the transmission rod 14 to rotate, and the transmission gear 1 152 at both ends of the transmission rod 14 rotates with the transmission rod 14, driving the transmission gear 2 153 to rotate, thereby driving the screw rod 151 to move up and down in the bed frame connecting plate 11. One end of the screw rod 151 is fixed to the lumbar support plate 16 through the lifting assembly 15 and the connecting plate 110, and the other end is installed with a limit ring 18. When the screw rod 151 moves up and down, it drives the lumbar support plate 16 to move up and down, and exerts the lumbar support function. At the same time, the limit ring 18 at the other end can prevent the screw rod 151 from leaving the range of motion.

[0023] In order to make the user more comfortable, the present invention installs a vibration massage motor 111 on the side of the connecting plate 110, so that the user can simultaneously massage while supporting the waist. In addition, the upper surface of the waist support plate 16 is arc-shaped and made of glass fiber reinforced nylon, which is more ergonomic and can better fit the curvature of the human waist. The so-called glass fiber reinforced nylon is a blend of glass fiber and toughening agent added to nylon. With the increase of glass fiber content, the tensile strength and bending strength of the material can be greatly improved, while the impact strength is more complicated due to multiple factors; after adding toughening agent, the toughness of the material is also significantly improved. When 30% to 35% of glass fiber and 8% to 12% of toughening agent are added, the best comprehensive mechanical properties can be obtained.

[0024] like Figure 5As shown in the figure, the mattress of the present invention includes a bed frame 2 and a single-motor lumbar support device 1. 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 and installed on the bed frame 2. The single-motor lumbar support device 1 is installed on the second bed board 4, and the single-motor lumbar support device 1 is located on the side where the second bed board 4 is close to the third bed board 5. During use, the single-motor lumbar support device 1 protrudes the waist. The mattress of the present invention further includes a controller. The distance between the lumbar support plate 16 and the second bed board 4 can be adjusted through the controller, and the range is 4.2 cm to 14.2 cm. The initial distance between the lumbar support plate 16 and the second bed board 4 is preferably 4.2 cm, and the stroke provided by the lead screw 151 is preferably 10 cm. And during the adjustment process, it will not affect the cushion material on the mattress, nor cause damage or breakage. The width of the mattress can be 75 - 180 cm, such as 75 cm, 90 cm, 100 cm, 110 cm, 120 cm, 150 cm, 160 cm, 170 cm, or 180 cm. When the width is too small, the proportion of the single-motor lumbar support device 1 in the mattress area is too large, which will cause discomfort to the user during use; when the width of the mattress is too large, the proportion of the single-motor lumbar support device 1 in the mattress area is too small, making it inconvenient for the user to find the appropriate position of the lumbar support plate 16 during use; therefore, when the width of the mattress is preferably 75 - 180 cm, the proportion of the single-motor lumbar support device 1 in the mattress area is the most appropriate, and the lumbar support plate 16 is just located at the user's waist after lying down, making it very convenient to use.

[0025] The present invention uses a single drive motor 12 to achieve the stable lifting of the single-motor lumbar support device 1, which is stable in use and has a low cost; it can also achieve the lumbar support function at any lifting position, providing more precise support, not only improving the comfort, but also allowing users to flexibly adjust the shape of the mattress according to their own needs, especially suitable for the use of people who need additional lumbar support.

[0026] In addition, the single-motor lumbar support device 1 in the present invention can also be applied to an electric chair. When the back of the electric bed or electric chair bends at any angle, the height of the lumbar support plate 16 can be adjusted at any time, aiming to make different lumbar concavities (such as lumbar changes in different age groups, individual lumbar curvature differences, etc.) fully fit the mattress, effectively support the waist, avoid lumbar stress caused by suspension, and thus cause various discomforts.

[0027] The above embodiments are only used to explain the inventive concept of the present invention, rather than limiting the protection scope of the rights of the present invention. Any non-substantive changes made to the present invention using this concept shall fall within the protection scope of the present invention.

Claims

1. A single-motor lumbar support device, characterized in that: It includes a bed frame connecting plate, a driving motor is arranged on the bed frame connecting plate, a transmission rod is arranged at the output end of the driving motor, the transmission rod passes through the output end, and lifting components are arranged at both ends of the transmission rod, the upper end of the lifting component is connected to a top waist support plate, and the lifting component includes a screw rod, the lower end of the screw rod passes through the bed frame connecting plate, and is lifted up and down in the bed frame connecting plate.

2. The single-motor lumbar support device according to claim 1, characterized in that: A worm wheel is arranged inside the output end, the transmission rod is fixed inside the worm wheel, the driving motor is provided with a worm, and the worm wheel is meshed with the worm.

3. The single-motor lumbar support device according to claim 1, characterized in that: A transmission gear 1 is disposed at the end of the transmission rod, a transmission gear 2 is disposed at the end of the screw rod, the transmission gear 1 is meshed with the transmission gear 2, and a housing is disposed outside the transmission gear 1 and the transmission gear 2.

4. The single-motor lumbar support device according to claim 1, characterized in that: A screw sleeve is installed below the bed frame connecting plate, the screw rod is inserted into the screw sleeve, and a limit ring is provided at the lower end of the screw rod, and the limit ring is located below the screw sleeve; screw sleeve mounting pieces are installed on both sides of the screw sleeve, and the screw sleeve mounting pieces are fixed below the bed frame connecting plate.

5. The single-motor lumbar support device according to claim 1, characterized in that: A connecting plate is arranged at the upper end of the lifting assembly, the connecting plate is installed below the top waist supporting plate, and a vibration massage motor is arranged at one side of the connecting plate.

6. The single-motor lumbar support device according to claim 1, characterized in that: The upper surface of the top waist support plate is arc-shaped.

7. The single-motor lumbar support device according to claim 6, characterized in that: The upper surface of the top waist support plate is made of glass fiber reinforced nylon, and the glass fiber reinforced nylon is prepared by adding 30% to 35% of glass fiber and 8% to 12% of a toughening agent to nylon.

8. A mattress, characterized in that: It comprises a bed frame and a single-motor lumbar support device as claimed in any one of claims 1 to 7, wherein a first section of bed board, a second section of bed board, a third section of bed board, a fourth section of bed board and a fifth section of bed board are movably connected and installed on the bed frame, and the single-motor lumbar support device is installed on the second section of bed board, and the single-motor lumbar support device is located on the side where the second section of bed board is close to the third section of bed board, and when in use, the single-motor lumbar support device pushes out the waist.

9. The mattress according to claim 8, characterized in that: The single-motor lumbar support device also includes a controller, which has a stepless control function and controls the distance between the top lumbar support plate and the second section of the bed board to be any height between 4.2 cm and 14.2 cm.

10. The mattress according to claim 8, characterized in that: The mattress width is 75-180cm.

Images