Bed frame with protective cover
By installing protective covers on the hinges of the bed frame, the problem of oil stains on the mattress due to hinge friction is solved, thus ensuring the aesthetics of the mattress and the normal use of the hinges, reducing cleaning workload, and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SLEEMON HEALTHY SLEEP TECHNOLOGY CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-31
AI Technical Summary
The hinge structure of existing bed frames can easily cause the mattress to get stained with lubricating oil during use, affecting its appearance and increasing the amount of cleaning work.
Install a protective cover on the hinge to separate the hinge from the mattress, prevent contact, retain lubricant, and ensure proper hinge operation.
It effectively prevents oil stains on the mattress, reduces cleaning workload, maintains the mattress's appearance, ensures proper hinge operation, and enhances the user experience.
Smart Images

Figure CN224572460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bedding, specifically to a bed frame. Background Technology
[0002] Existing bed frames include a frame and a support plate assembly mounted on the frame. The support plate assembly includes a fixed part that is fixed to the frame and a movable part that can move relative to the fixed part. The top surface of the support plate assembly forms a support surface. By adjusting the movable part, the contour of the support surface can be changed to meet the user's support needs in different scenarios. The movable part and the fixed part are connected by a hinge. The hinge includes two separate connecting ears and a pivot shaft connecting the connecting ears in series. The connecting ears guide the movable part to swing freely around the pivot shaft. This structure has the following drawbacks: because friction is generated when the connecting ears swing relative to each other around the pivot shaft, lubricating oil needs to be injected into the hinge. This causes the mattress to easily become stained with oil due to contact with the hinge, affecting its appearance, increasing cleaning workload, and impacting the user experience. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a bed frame with a protective cover. The protective cover is installed on the hinge to separate the hinge and the mattress, which not only prevents the mattress from contacting the hinge and getting oily, reducing cleaning workload, but also effectively preserves lubricating oil, ensuring normal use of the hinge and improving the user experience.
[0004] This utility model is achieved through the following method: a bed frame with a protective cover, comprising a frame body and a support plate assembly disposed on the frame body for supporting a mattress. The support plate assembly includes a fixed part fixedly connected to the frame body and a movable part movable relative to the fixed part. The movable part is mounted on a preset position via a hinge. The hinge is provided with a protective cover, which is fitted onto the hinge from top to bottom to separate the hinge from the mattress. Providing a protective cover on the hinge to separate the hinge and the mattress prevents the mattress from contacting the hinge and getting oily, reducing cleaning workload and ensuring the mattress's aesthetics. It also effectively preserves lubricant, ensuring normal hinge operation and improving the user experience.
[0005] Preferably, the protective cover includes a partition covering the top of the hinge and connecting plates disposed at both ends of the partition and arranged opposite each other. A groove is formed in the center of the facing surfaces of the connecting plates, and the protective cover is secured to both ends of the hinge via the groove, so that the protective cover covers and shields the top of the hinge and restricts contact with the mattress. The protective cover, through the partition, serves to shield the hinge, thereby isolating the hinge and the mattress and preventing the mattress from becoming soiled with oil due to contact with the hinge. The connecting plates, through the groove, are fitted onto both ends of the hinge, positioning the protective cover and facilitating disassembly and maintenance, thus improving assembly convenience.
[0006] Preferably, the hinge includes connecting ears disposed on the movable part and the preset work position, and the connecting ears are matched and connected by a rotating shaft. The connecting ears are stacked on top of each other and connected by the rotating shaft, so that the connecting ears can swing relative to each other about the rotating shaft, thereby allowing the movable part to swing relative to the preset work position.
[0007] Preferably, both ends of the rotating shaft are exposed through the connecting ears and secured by the retaining grooves to prevent the protective sleeve from detaching from the hinge. The exposed ends of the rotating shaft through the connecting ears ensure that the shaft completely passes through them, increasing the contact area and improving connection reliability. This also provides a point of contact for the protective sleeve, preventing it from detaching from the hinge.
[0008] Preferably, the top periphery of the connecting ear is arc-shaped, and the partition is arc-shaped, so that the connecting ear is covered and can swing within a preset range around the pivot. The tops of the corresponding connecting ears are stacked and connected by the pivot. The arc-shaped periphery of the connecting ear's top, centered on the pivot, ensures that the connecting ears will never contact or impact the partition when swinging relative to each other. This ensures that the partition remains above the hinge, preventing it from shifting under force, and also protects the partition from damage due to impact with the connecting ear.
[0009] Preferably, the connecting plate is circular, and its periphery is fitted and fixed to the inner wall edge of the partition. The contour of the connecting plate matches the contour of the rotating shaft end face, ensuring that the slot on the connecting plate can completely cover the rotating shaft end face, preventing oil leakage, and also effectively reducing the volume of the protective cover, facilitating disassembly and use. The periphery of the connecting plate is fixed to the inner wall of the partition, ensuring that the connecting plate is covered by the partition, preventing the connecting plate from detaching from the rotating shaft due to friction from contact with the mattress, and improving the connection reliability of the protective cover.
[0010] Preferably, the bottom of the connecting ear extends downward to form a connecting portion that avoids the partition. The connecting ear is fixedly connected to the movable part or the preset work position through the connecting portion. The connection portion is fixedly connected to the movable part or the preset work position to ensure that the relative position between the connecting ear and the movable part or the preset work position is fixed and linked, ensuring that the movable part can swing relative to the preset work position with the pivot as the center.
[0011] Preferably, the bottom of the hinge is exposed outside the protective cover, forming an oil injection channel. The top of the hinge is covered and shielded by the protective cover to prevent the mattress from getting oily, while the bottom of the hinge is exposed and forms an oil injection channel to deliver lubricating oil to the hinge, ensuring smooth operation of the hinge.
[0012] Preferably, the protective sleeve is an integral structure made of rubber or silicone. The protective sleeve is manufactured as a single piece through injection molding, which facilitates processing, improves processing efficiency, ensures good structural strength between the connecting plate and the partition, extends service life, and has good elasticity, making it easy to lock and fix the connection by sleeve reset, thus improving connection reliability.
[0013] Preferably, at least two separate hinges are provided between the movable part and the corresponding preset workstation. Using multiple hinges improves connection reliability and prevents the movable part from deflecting.
[0014] Preferably, the fixed part includes a lumbar support plate and a hip support plate fixedly connected front to back, and the movable part includes a back support plate, a thigh plate, and a calf plate. The back support plate is pivotally connected to the front edge of the lumbar support plate via a hinge, the thigh plate is pivotally connected to the rear edge of the hip support plate via a hinge, and the calf plate is pivotally mounted on the rear edge of the thigh plate via a hinge. Hinges with protective covers are provided between the back support plate and the lumbar support plate, between the hip support plate and the thigh plate, and between the thigh plate and the calf plate. This ensures that the top surface of the support plate assembly can form a support surface with a variable profile to meet the user's needs in different scenarios. The protective covers also shield the top of the hinges, preventing the mattress from getting oily when the hinges are exposed between the movable part and the corresponding preset work position.
[0015] The beneficial effects of this utility model are as follows: By setting a protective sleeve on the hinge to separate the hinge from the mattress, the mattress is prevented from contacting the hinge and getting oily, reducing the amount of cleaning work and ensuring the aesthetics of the mattress. It can also effectively preserve the lubricating oil, ensure the normal use of the hinge, and improve the user experience. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the bed frame;
[0017] Figure 2 A schematic diagram of the structure when assembling the protective sleeve for the hinge;
[0018] Figure 3 This is a schematic diagram of the disassembled structure of the hinge and protective sleeve;
[0019] Figure 4 This is a schematic diagram of the structure of the protective sleeve;
[0020] Figure 5 This is a schematic diagram of the protective sleeve from another perspective.
[0021] In the diagram: 1. Frame, 2. Hinge, 3. Protective sleeve, 4. Partition, 5. Connecting plate, 6. Slot, 7. Connecting ear, 8. Shaft, 9. Connecting part, 10. Waist support plate, 11. Hip support plate, 12. Back support plate, 13. Thigh plate, 14. Lower leg plate. Detailed Implementation
[0022] The essential features of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0023] like Figure 1 and 2 The illustrated bed frame with a protective cover includes a frame body 1 and a support plate assembly mounted on the frame body 1 for supporting a mattress. The support plate assembly includes a fixed part fixed to the frame body 1 and a movable part that moves relative to the fixed part. The movable part is mounted at a preset position via a hinge 2. A protective cover 3 is provided on the hinge 2, and the protective cover 3 is fitted over the hinge 2 from top to bottom to separate the hinge 2 from the mattress. The protective cover 3 on the hinge 2 separates the hinge 2 and the mattress, preventing the mattress from contacting the hinge 2 and becoming contaminated with oil, reducing cleaning workload, ensuring the mattress's appearance, effectively preserving lubricant, ensuring the normal use of the hinge 2, and improving the user experience.
[0024] In actual operation, the movable part is swayably mounted at a preset work position via hinge 2. The fixed part includes a lumbar support plate 10 and a hip support plate 11 fixedly connected in the front and back directions. The movable part includes a back support plate 12, a thigh plate 13 and a calf plate 14. The back support plate 12 is swayably connected to a preset work position located at the front edge of the lumbar support plate 10 via hinge 2. The thigh plate 13 is swayably connected to a preset work position located at the rear edge of the hip support plate 11 via hinge 2. The calf plate 14 is swayably mounted at a preset work position located at the rear edge of the thigh plate 13 via hinge 2. When the movable part swings relative to the preset work position, the top of the hinge 2 can be exposed upwards through the gap formed between the movable part and the preset work position. By setting a protective sleeve 3 on the top of the hinge 2, the top of the hinge 2 is covered and isolated from the mattress. This not only prevents the lubricating oil on the hinge 2 from getting on the mattress, but also effectively reduces the consumption of lubricating oil, thereby ensuring the normal use of the hinge 2, effectively reducing the wear and noise of the hinge 2, and improving the user experience.
[0025] In actual operation, the hinge 2 includes connecting ears 7 disposed on the movable part and the preset work position. The connecting ears 7 are matched and connected by a rotating shaft 8. The connecting ears 7 are stacked on top of each other and connected in series by the rotating shaft 8, so that the connecting ears 7 can swing around the rotating shaft 8 as the center, thereby guiding the movable part to swing along a preset path.
[0026] In actual operation, the protective sleeve 3 includes a partition 4 covering the top of the hinge 2 and connecting plates 5 disposed at both ends of the partition 4 and arranged opposite to each other (e.g., Figure 4As shown), the connecting plate 5 has a recessed groove 6 in the middle of its facing surfaces. The protective sleeve 3 is secured to both ends of the hinge 2 through the groove 6, so that the protective sleeve 3 covers and shields the top of the hinge 2 and restricts contact with the mattress. The two ends of the pivot 8 are exposed through the connecting ears 7 and are covered and connected by the groove 6 to prevent the protective sleeve 3 from detaching from the hinge 2. The connecting plates 5 are arranged opposite each other, and the distance between the connecting plates 5 matches the axial length of the pivot 8. The connecting ears 7 are fitted into the middle of the pivot 8, so that both ends of the pivot 8 are exposed through the connecting ears 7, facilitating the locking and fixing by the groove 6. During installation, as... Figure 3 As shown, the connecting plate 5 increases the spacing through deformation, allowing the connecting plate 5 of the protective sleeve 3 to move simultaneously to the outer sides of both ends of the rotating shaft 8. Then, the protective sleeve 3 uses its own deformation and reset properties to drive the connecting plate 5 to reset, so that the connecting plate 5 is fitted onto the corresponding end of the rotating shaft 8 through the slot 6. After installation, the partition plate 4 and the top periphery of the connecting ear 7 are close together, and the connecting plate 5 is fitted onto the end of the rotating shaft 8 through the slot 6. The protective sleeve 3 uses its own structural strength to prevent the connecting plate 5 from axially disengaging from the rotating shaft 8, and uses the groove wall of the slot 6 to abut against the periphery of the end of the rotating shaft 8 to limit the radial deviation of the connecting plate 5, ensuring that the protective sleeve 3 is firmly installed on the hinge 2.
[0027] In actual operation, the top periphery of the connecting ear 7 is arc-shaped, and the partition 4 is arc-shaped (e.g., Figure 5 As shown in the diagram, the connecting ear 7 is fitted and covered by the partition 4 and can swing within a preset range around the pivot 8. The top periphery of the connecting ear 7 and the partition 4 are both arc-shaped. After installation, the partition 4 is adjacent to the top of the connecting ear 7, which not only leaves an assembly gap between the partition 4 and the top of the connecting ear 7 to prevent the connecting ear 7 from rubbing against the partition 4, but also provides space for lubricating oil by utilizing the assembly gap, increasing the amount of lubricating oil stored, and effectively reducing the volume of the hinge 2 after the protective sleeve 3 is installed, making it convenient for disassembly and use.
[0028] In actual operation, the bottom of the connecting ear 7 extends downward to form a connecting part 9 that avoids the partition 4. The connecting ear 7 is fixed to the movable part or a preset work position through the connecting part 9. The connecting part 9 is tightly attached to the connected object and locked by fasteners to ensure that the connecting ear 7 can be fixedly connected to the connected object and move together, thereby ensuring that the connected object moves accurately along the preset path.
[0029] In actual operation, the connecting plate 5 is circular, and its periphery is fixedly attached to the inner wall edge of the partition 4. The outline of the connecting plate 5 matches the outline of the end face of the rotating shaft 8, ensuring that a slot 6 can be fully opened on the connecting plate 5 to cover the end face of the rotating shaft 8, while also effectively reducing the size of the connecting plate 5, thus facilitating disassembly and assembly, and preventing the protective cover 3 from rubbing against adjacent components due to excessive size. The periphery of the connecting plate 5 is fixedly attached to the inner wall edge of the partition 4, so that the connecting plate 5 is located below the partition 4, ensuring that the top surface of the protective cover 3 is flat and smooth, effectively reducing the friction when the partition 4 rubs against the mattress, and thus preventing the protective cover 3 from shifting or falling off due to external forces.
[0030] In actual operation, the bottom of the hinge 2 is exposed outside the protective sleeve 3, forming an oil injection channel. The exposed bottom of the hinge 2 not only forms an oil injection channel, making it convenient to add lubricating oil to the hinge 2 without removing the protective sleeve 3, but also simplifies the structure of the protective sleeve 3, allowing the protective sleeve 3 to be placed on the hinge 2 through its bottom opening, improving the convenience of disassembly and assembly.
[0031] In actual operation, the protective sleeve 3 is an integral structure. The protective sleeve 3 is made of rubber or silicone material, which not only facilitates batch processing and assembly, but also ensures that the protective sleeve 3 has good deformation recovery performance, ensuring that the protective sleeve 3 can be tightly clamped on the hinge 2 by deformation pre-tightening force, and effectively reducing costs.
[0032] In actual operation, at least two separate hinges 2 are provided between the movable part and the corresponding preset work station. At least two separately arranged hinges 2 with protective sleeves 3 are provided between the back support plate 12 and the waist support plate 10, between the hip support plate 11 and the thigh plate 13, and between the thigh plate 13 and the calf plate 14 to ensure that the back support plate 12, the thigh plate 13 and the calf plate 14 swing smoothly.
Claims
1. A bedstead with a protective cover, comprising a frame (1) and a set of supporting plates arranged on the frame (1) and used for supporting a mattress, the set of supporting plates comprising a fixed part fixed to the frame (1) and a movable part moving relative to the fixed part, characterized in that, The movable part is installed on a preset work position via a hinge (2). A protective sleeve (3) is provided on the hinge (2). The protective sleeve (3) is placed on the hinge (2) from top to bottom so that the hinge (2) is separated from the mattress.
2. The bed frame with a protective cover according to claim 1, characterized in that, The protective cover (3) includes a partition (4) covering the top of the hinge (2) and connecting plates (5) disposed at both ends of the partition (4) and opposite to each other. The middle of the facing surfaces of the connecting plates (5) forms a groove (6) through a recess. The protective cover (3) is secured to both ends of the hinge (2) through the groove (6) so that the protective cover (3) covers and shields the top of the hinge (2) and restricts contact with the mattress.
3. A bedstead with a protective cover according to claim 2, characterized in that, The hinge (2) includes connecting ears (7) placed on the movable part and the preset work position respectively. The connecting ears (7) are matched and connected by rotation through the rotating shaft (8).
4. A bedstead with a protective cover according to claim 3, characterized in that, The two ends of the pivot (8) are exposed to the connecting lugs (7) and are covered and connected by the slots (6) to prevent the protective sleeve (3) from disengaging from the hinge (2).
5. A bed frame with a protective cover according to claim 3, characterized in that, The top periphery of the connecting ear (7) is arc-shaped, and the partition (4) is arc-shaped, so that the connecting ear (7) is covered by the partition (4) and can swing within a preset range with the pivot (8) as the center.
6. A bed frame with a protective cover according to claim 5, characterized in that, The connecting plate (5) is circular, and the periphery of the connecting plate (5) is attached and fixed to the inner wall edge of the partition (4).
7. A bed frame with a protective cover according to claim 3, characterized in that, The bottom of the connecting ear (7) extends downward to form a connecting part (9) that avoids the partition (4). The connecting ear (7) is fixed to the movable part or a preset work position through the connecting part (9); or, the bottom of the hinge (2) is exposed to the protective sleeve (3) and forms an oil injection channel.
8. A bed frame with a protective cover according to any one of claims 1-7, characterized in that, The protective sleeve (3) is an integral structure; or the protective sleeve (3) is made of rubber or silicone.
9. A bed frame with a protective cover according to any one of claims 1-7, characterized in that, The movable part is provided with at least two separate hinges (2) between it and the corresponding preset work station.
10. A bed frame with a protective cover according to any one of claims 1-7, characterized in that, The fixed part includes a lumbar support plate (10) and a hip support plate (11) fixedly connected in the front and back directions. The movable part includes a back support plate (12), a thigh plate (13) and a calf plate (14). The back support plate (12) is swayably connected to the front edge of the lumbar support plate (10) through the hinge (2). The thigh plate (13) is swayably connected to the rear edge of the hip support plate (11) through the hinge (2). The calf plate (14) is swayably mounted on the rear edge of the thigh plate (13) through the hinge (2).