Bedstead with noise reduction box

Abstract

The invention relates to a bed frame with a noise reduction box. A motor of an existing bed frame is exposed, so that large noise is generated, and the use experience is affected. The noise reduction device comprises a frame body, a bearing assembly arranged on the frame body and a driving assembly driving the bearing assembly to act, the driving assembly comprises a motor, a noise reduction box completely wrapping the motor is arranged on the frame body, and the noise reduction box is of a multi-layer structure and comprises a sound absorption layer, a vibration reduction layer and a sound insulation layer which are sequentially arranged in a sleeving mode from inside to outside. And noise generated by operation of the motor is prevented from being transmitted outwards. The noise reduction box wrapping the motor is arranged, the noise reduction box is of a multi-layer structure, noise generated by the motor can be effectively prevented from being transmitted outwards, vibration generated by operation of the motor can be effectively absorbed, then the influence on sleep of a user is reduced, and the use experience is improved.

Description

Technical Field

[0001] The present invention relates to the field of bedding, in particular to a bed frame. Background Art

[0002] Existing bed frames include a frame, a support assembly mounted on the frame, and a drive assembly that drives the support assembly. The drive assembly includes a motor and a push rod. Driven by the motor, the push rod extends and retracts, thereby driving the movable parts of the support assembly. This allows the support surface contour formed by the top surface of the support assembly to be deformed as needed, meeting the differentiated support needs of users in different scenarios. Since the motor generates noise due to vibration and friction when rotating at high speed, it can affect the user's sleep and reduce the user experience. Summary of the Invention

[0003] In order to address the deficiencies of the prior art, the present invention provides a bed frame with a noise reduction box. The noise reduction box is arranged to wrap the motor, effectively isolating the noise generated by the motor from being transmitted outward, thereby reducing the impact on the user's sleep and improving the user experience.

[0004] The present invention is achieved in the following way: a bed frame with a noise reduction box, including a frame, a supporting assembly arranged on the frame, and a driving assembly that drives the supporting assembly to move, the driving assembly including a motor, the frame is provided with a noise reduction box that completely wraps the motor, the noise reduction box is a multi-layer structure, including a sound-absorbing layer, a vibration-reducing layer, and a sound-insulating layer sequentially arranged from the inside to the outside, so as to limit the noise generated by the motor from being transmitted outward. A noise reduction box is provided to wrap the motor, and the noise reduction box is a multi-layer structure, which can not only effectively isolate the noise generated by the motor from being transmitted outward, but also effectively absorb the vibration generated by the motor, thereby reducing the impact on the user's sleep and improving the user experience. The sound-absorbing layer is used to absorb the noise generated by the motor, the vibration-reducing layer effectively eliminates the vibration generated when the motor is running, and the sound-insulating layer can effectively prevent the noise generated by the motor from being transmitted outward. The multi-layer structure plays a role of multiple noise reduction, effectively improving the noise reduction effect.

[0005] Preferably, the support assembly includes a fixed portion fixed to the frame and a movable portion movable relative to the fixed portion. The motor drives the movable portion via a push rod. The fixed portion is fixed to the frame and provides support for the movable portion. The movable portion can move relative to the fixed portion, thereby changing the contour of the support surface to meet the user's differentiated support needs. The motor drives the movable portion via the push rod, ensuring that the movable portion can be freely adjusted along a preset path.

[0006] Preferably, the noise reduction box includes a housing chamber with an opening at the top. The noise reduction box is positioned over the motor from bottom to top through the opening and is secured to the fixing portion, completely enclosing the motor. The housing chamber provides space for the motor, and the noise reduction box is secured to the fixing portion and completely encloses the motor. This ensures that the motor is completely hidden within the housing chamber, while the fixing portion blocks the opening to prevent noise from being transmitted outward. Furthermore, the noise reduction box facilitates disassembly and maintenance, enhancing the user experience.

[0007] Preferably, the periphery of the cavity opening is extended outward to form a flange, which is affixed and fixed to the bottom surface of the fixing portion. The flange is formed by folding the periphery of the cavity opening outward and affixing and fixing to the fixing portion, which not only improves connection reliability but also enhances sound insulation by increasing the width of the contact area, preventing noise from propagating outward through the cavity opening.

[0008] Preferably, a silencer gap is reserved between the inner wall of the accommodating chamber and the outer wall of the motor. The accommodating chamber is larger than the motor, which not only facilitates insertion of the motor into the accommodating chamber but also effectively eliminates noise through the reserved silencer gap. Noise is reflected back and forth within the reserved gap, dissipating energy and thus dissipating the noise.

[0009] Preferably, a perforation is defined in the side wall of the noise reduction box, wherein the driving end of the push rod is connected to the motor, the telescopic end extends through the perforation and is rotatably connected to the movable portion, and the telescopic end, driven by the motor, drives the movable portion to move by telescoping. The driving end of the push rod is connected to the motor to receive driving force from the motor, and the telescopic end extends outward through the perforation and is connected to the movable portion to drive the movable portion.

[0010] Preferably, the perforation is in the shape of a vertical strip, providing space for the push rod to swing vertically. Since the driving end of the push rod is fixed in position, the telescopic end moves in tandem with the movable portion during extension and retraction, so that the telescopic end of the push rod not only extends and retracts along its length but also produces vertical swinging motion. Arranging the perforation in the shape of a vertical strip allows the push rod to swing vertically while the driving end remains in position, ensuring that the telescopic end of the push rod moves synchronously with the movable portion, effectively ensuring normal use of the push rod.

[0011] Preferably, the frame includes a crossbar for connection to the push rod's driving end, the motor is mounted at the push rod's driving end, and the cavity opening is provided with a relief notch, into which the crossbar is inserted. The cavity opening's edge is affixed and fixed to the bottom surface of the fixed portion, thereby eliminating any gap between the noise reduction box and the fixed portion. The crossbar serves to both enhance the frame's structural strength and to secure the push rod's driving end, ensuring that its position remains unchanged. The cavity opening avoids the crossbar through the relief notch, ensuring a secure connection between the noise reduction box and the fixed portion and reducing any noise transmitted by the relief notch enveloping the crossbar.

[0012] Preferably, the sound-absorbing layer is made of sound-absorbing sponge material, which effectively improves the noise absorption effect.

[0013] Preferably, the vibration-damping layer is made of aluminum foil damping material, and the vibration-damping layer eliminates vibration by deforming itself, thereby preventing the vibration from being transmitted outward.

[0014] Preferably, the sound insulation layer is made of sound insulation damping felt, and the gaps therein are used to prevent noise from being transmitted outward.

[0015] Preferably, the fixed portion comprises a lumbar support and a hip support positioned front and rear, respectively. The movable portion comprises a back support pivotally connected to the front edge of the lumbar support and a thigh support pivotally connected to the rear edge of the hip support. Two drive assemblies are provided, each driving the back and thigh supports to independently swing. Both the back and thigh supports swing along a pre-set path, allowing the corresponding push rods to have a controllable range of motion and ensuring precise control of movement. The back and thigh supports utilize independent drive assemblies to operate independently, ensuring that their movements do not interfere with each other.

[0016] The beneficial effects of the present invention are as follows: a noise reduction box is provided to wrap the motor, and the noise reduction box has a multi-layer structure, which can not only effectively isolate the noise generated by the motor from being transmitted outward, but also effectively absorb the vibration generated by the motor operation, thereby reducing the impact on the user's sleep and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the bed frame;

[0018] Figure 2 is a schematic diagram of the partial structure of the bed frame;

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the noise reduction box;

[0020] Figure 4 is a structural schematic diagram of the noise reduction box;

[0021] Figure 5 is a schematic diagram of a partial cross-sectional structure of the bed frame;

[0022] Figure 6 is a schematic diagram of the bed frame when viewed from above;

[0023] In the figure: 1. frame, 2. motor, 3. noise reduction box, 4. sound-absorbing layer, 5. vibration-reducing layer, 6. sound insulation layer, 7. perforation, 8. push rod, 9. cross bar, 10. avoidance gap, 11. flange, 12. lumbar support plate, 13. hip support plate, 14. thigh plate, 15. back support plate. DETAILED DESCRIPTION

[0024] The essential features of the present invention will be further described below with reference to the accompanying drawings and specific implementation methods.

[0025] like Figure 1 、 2 A bed frame with a noise reduction box as shown in Figure 3 comprises a frame 1, a supporting assembly arranged on the frame 1, and a driving assembly for driving the supporting assembly. The driving assembly includes a motor 2. The frame 1 is provided with a noise reduction box 3 that completely wraps the motor 2. The noise reduction box 3 is a multi-layer structure, including a sound-absorbing layer 4, a vibration-reducing layer 5, and a sound-insulating layer 6 that are sequentially arranged from the inside to the outside to limit the noise generated by the motor 2 from being transmitted outward. The noise reduction box 3 that wraps the motor 2 is a multi-layer structure that can effectively isolate the noise generated by the motor 2 from being transmitted outward and can also effectively absorb the vibration generated by the motor 2, thereby reducing the impact on the user's sleep and improving the user experience.

[0026] In actual operation, the noise reduction box 3 has a multi-layer structure, including a sound-absorbing layer 4, a vibration-damping layer 5, and a sound-insulating layer 6, each of which performs a different function. Specifically, the noise generated by the motor 2 includes the noise generated by internal friction during operation and the noise generated by the impact of surrounding components after the vibration is transmitted outward. The sound-absorbing layer 4 is made of a sound-absorbing sponge material to absorb the noise generated by the operation of the motor 2. The vibration-damping layer 5 is made of an aluminum foil damping material to eliminate the vibration generated by the operation of the motor 2. The sound-insulating layer 6 is made of a sound-insulating damping felt material to prevent the noise generated by the motor 2 from being transmitted outward. The multi-layer structure plays a multiple noise reduction role, effectively improving the noise reduction effect.

[0027] In actual operation, the supporting assembly includes a fixed part fixed to the frame 1 and a movable part movable relative to the fixed part, and the motor 2 drives the movable part to move through the push rod 8. The fixed part is a lumbar support plate 12 and a hip support plate 13 separated into front and back parts, and the movable part includes a back support plate 15 connected to the front edge of the lumbar support plate 12 for swinging, and a thigh plate 14 connected to the rear edge of the hip support plate 13 for swinging. The driving assembly is divided into two groups and drives the back support plate 15 and the thigh plate 14 to swing independently. The rear edge of the back support plate 15 is connected to the front edge of the lumbar support plate 12 through a rotating shaft, so that the back support plate 15 can swing around the front edge of the lumbar support plate 12, and the front edge of the thigh plate 14 is connected to the rear edge of the hip support plate 13 through a rotating shaft, so that the hip support plate 13 can swing around the rear edge of the hip support plate 13. The driving assembly is divided into two groups (such as Figure 6 As shown) and are respectively used to drive the back support plate 15 and the thigh plate 14 to move within a preset range of motion, ensuring that both can be driven by corresponding driving components, effectively improving the movement accuracy of the back support plate 15 and the thigh plate 14, and ensuring that the supporting surface contour meets the user's differentiated usage requirements.

[0028] In actual operation, the driving assembly includes a motor 2 and a push rod 8. The motor 2 is installed on the driving end of the push rod 8. The driving end of the push rod 8 is rotatably connected to the cross bar 9 provided on the frame 1, so that the push rod 8 can swing around the cross bar 9. The telescopic end of the push rod 8 is rotatably connected to the corresponding movable part. The push rod 8 receives the driving force from the motor 2 and drives the telescopic end to perform telescopic movement, and then drives the movable part to move under the support of the cross bar 9, thereby adjusting the contour of the supporting surface.

[0029] In actual operation, the noise reduction box 3 is provided with a receiving cavity with a cavity at the top. The noise reduction box 3 is placed on the motor 2 from bottom to top through the cavity and is fixed to the fixing part so that the motor 2 is completely wrapped. The periphery of the cavity extends outward to form a flange 11, and the flange 11 is fixedly connected to the bottom surface of the fixing part (such as Figure 5 The fixing portion has a flat bottom surface, and the noise reduction box 3 moves from bottom to top and is placed on the motor 2 through the opening of the accommodating cavity until the noise reduction box 3 contacts the bottom surface of the fixing portion through the flange 11 and is fixed by fasteners, so that the motor 2 is completely enclosed and hidden in the accommodating cavity, effectively preventing the noise generated by the motor 2 from being transmitted outward.

[0030] In actual operation, a silencer gap is reserved between the inner wall of the accommodating chamber and the outer wall of the motor 2. The size of the accommodating chamber is larger than that of the motor 2, which not only facilitates the placement of the noise reduction box 3 on the motor 2, preventing the motor 2 and the noise reduction box 3 from colliding and scratching, thereby protecting the motor 2, but also utilizes the silencer gap to eliminate the noise generated by the operation of the motor 2, by guiding the noise to reflect back and forth within the silencer gap to consume energy, thereby playing a role in noise elimination, and ensuring that the motor 2 and the noise reduction box 3 do not contact each other, thereby preventing the vibration generated by the operation of the motor 2 from being transmitted outward through the noise reduction box 3.

[0031] In actual operation, a through hole 7 is provided on the side wall of the noise reduction box 3. The driving end of the push rod 8 is connected to the motor 2. The telescopic end passes through the through hole 7 and is rotatably connected to the movable part. The telescopic end driven by the motor 2 drives the movable part to move by telescoping. The through hole 7 is in the shape of a vertical strip, providing space for the push rod 8 to swing vertically. Since the back support plate 15 or the thigh plate 14 can both swing vertically, the telescopic end of the push rod 8 will also swing up and down accordingly. By providing space for the push rod 8 to swing vertically, the long strip-shaped through hole 7 is provided to prevent the push rod 8 from interfering with the edge of the through hole 7, thereby preventing the movable part from being unable to swing normally. This ensures that the contour of the supporting surface can be flexibly adjusted.

[0032] In actual operation, the frame 1 includes a crossbar 9 for connecting the driving end of the push rod 8, the motor 2 is installed at the driving end of the push rod 8, and the edge of the cavity is provided with an avoidance gap 10 (such as Figure 4(As shown), crossbar 9 is embedded in relief notch 10, and the edge of the cavity is affixed to the bottom surface of the fixed portion, eliminating the gap between the noise reduction box 3 and the fixed portion. The bottom surface of the fixed portion mates with relief notch 10 and tightly wraps crossbar 9, effectively reducing the gap between crossbar 9 and relief notch 10, preventing noise from being transmitted outward through the gap. In addition, the driving end of push rod 8 is connected to crossbar 9. By wrapping the section of crossbar 9 used to connect push rod 8, the coverage of noise reduction box 3 is expanded, thereby reducing the vibration and noise transmitted outward.

Claims

1. A bed frame with a noise reduction box, comprising a frame body (1), a supporting assembly arranged on the frame body (1), and a driving assembly for driving the supporting assembly, wherein the driving assembly comprises a motor (2), and is characterized in that: The frame (1) is provided with a noise reduction box (3) that completely wraps the motor (2). The noise reduction box (3) is a multi-layer structure, including a sound absorbing layer (4), a vibration reduction layer (5), and a sound insulation layer (6) that are sequentially arranged from the inside to the outside, so as to limit the transmission of noise generated by the operation of the motor (2) to the outside.

2. A bed frame with a noise reduction box according to claim 1, characterized in that: The supporting assembly comprises a fixed portion fixedly connected to the frame (1) and a movable portion movable relative to the fixed portion, and the motor (2) drives the movable portion to move via a push rod (8).

3. A bed frame with a noise reduction box according to claim 2, characterized in that: The noise reduction box (3) is provided with a receiving cavity with a cavity opening at the top. The noise reduction box (3) is placed on the motor (2) from bottom to top through the cavity opening and is fixed to the fixing portion, so that the motor (2) is completely wrapped.

4. The bed frame with a noise reduction box according to claim 3, characterized in that: The periphery of the cavity opening is extended outward to form a flange (11), and the flange (11) is fitted and fixed to the bottom surface of the fixing portion.

5. The bed frame with a noise reduction box according to claim 3, characterized in that: A silencer gap is reserved between the inner wall of the accommodating cavity and the outer wall of the motor (2).

6. The bed frame with a noise reduction box according to claim 2, characterized in that: A through hole (7) is provided on the side wall of the noise reduction box (3); the driving end of the push rod (8) is connected to the motor (2); the telescopic end passes through the through hole (7) and is rotatably connected to the movable part; the telescopic end driven by the motor (2) drives the movable part to move through telescopic movement.

7. The bed frame with a noise reduction box according to claim 6, characterized in that: The perforation (7) is in the shape of a vertical strip, providing a space for the push rod (8) to swing vertically.

8. The bed frame with a noise reduction box according to claim 3, characterized in that: The frame (1) includes a cross bar (9) for connecting the driving end of the push rod (8), the motor (2) is installed at the driving end of the push rod (8), the edge of the cavity is provided with an avoidance notch (10), the cross bar (9) is embedded in the avoidance notch (10), and the edge of the cavity is fixedly connected to the bottom surface of the fixed part to eliminate the gap between the noise reduction box (3) and the fixed part.

9. The bed frame with a noise reduction box according to claim 2, characterized in that: The sound-absorbing layer (4) is made of a sound-absorbing sponge material; or, the vibration-reducing layer (5) is made of an aluminum foil damping material; or, the sound-insulating layer (6) is made of a sound-insulating damping felt material.

10. A bed frame with a noise reduction box according to any one of claims 2 to 9, characterized in that: The fixed part is a waist support plate (12) and a hip support plate (13) arranged front and back, the movable part includes a back support plate (15) connected to the front edge of the waist support plate (12) in a swinging manner, and a thigh plate (14) connected to the rear edge of the hip support plate (13) in a swinging manner, and the driving components are two groups, which respectively drive the back support plate (15) and the thigh plate (14) to swing independently.

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