Bed frame with flexible hinges
By using flexible hinges instead of mechanical hinges on the bed frame, the problems of mattress smudges and friction noises are solved, achieving both mattress cleanliness and improved flexibility of moving parts.
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
- 2026-07-24
AI Technical Summary
The mechanical hinges of existing bed frames require lubricant, which causes the mattress to become oily, affecting the appearance and user experience. At the same time, friction noises affect the flexibility of movement.
Flexible hinges are used instead of mechanical hinges, guiding the movement of the moving parts through their own deformation, avoiding the use of lubricating oil, and ensuring that the mattress is clean and moves flexibly.
It improves the neatness of the mattress and the flexibility of its moving parts, reduces friction and noise, and enhances the user experience.
Smart Images

Figure CN224539809U_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 mechanical hinge. The mechanical 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 mechanical hinge. This causes the mattress to easily become stained with oil due to contact with the mechanical hinge, affecting its appearance and increasing cleaning workload. It also causes friction noise in the mechanical hinge due to the loss of lubricating oil, reducing the flexibility of the movable part and affecting the user experience. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a bed frame with flexible hinges. The flexible hinges can deform under force, serving to guide and connect the moving parts. No lubricating oil is required, which ensures both mattress cleanliness and flexibility of movement of the moving parts, thus improving the user experience.
[0004] This utility model is achieved through the following method: a bed frame with a flexible hinge, comprising a frame body and a support plate assembly disposed on the frame body. 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 installed in a preset position via a flexible hinge. The flexible hinge guides the movement of the movable part through its own deformation, with the top surface of the middle part of the flexible hinge facing upwards to form a clean contact surface. The movable part is installed in the preset position via a flexible hinge, and the flexible hinge guides the movement of the movable part through its own deformation, eliminating the need for mechanical hinges. By using a clean contact surface facing the mattress, it ensures the mattress remains clean and prevents the mattress from being contaminated with lubricating oil. Furthermore, the friction and noise generated ensure the flexibility of the movable part's movement, improving the user experience.
[0005] Preferably, the flexible hinge includes a centrally located deformable portion and connecting portions on both sides of the deformable portion. The deformable portion guides the relative movement of the connecting portions through bending deformation, allowing the movable portion installed at a preset workstation to move along a preset path. The flexible hinge is fixed to the corresponding target by the connecting portions on both sides, ensuring that the movable portion will not detach from the preset workstation. Furthermore, the deformable portion guides the movable portion to move along the preset path, ensuring controllable movement and improving controllability.
[0006] Preferably, the bottom surface of the deformable part is provided with a deformation groove that extends through the width of the flexible hinge. The flexible hinge bends around the deformation groove and guides the swing of the movable part. By creating the deformation groove to guide the deformation of the deformable part and providing the space required for deformation, the deformable part can be deformed at a preset position, ensuring that the deformation is controllable. This also effectively reduces damage to the flexible hinge and extends its service life.
[0007] Preferably, the cross-sectional profile of the deformation groove is characterized by a large opening and a small cavity. This not only reduces the thickness of the local area of the deformation part by opening the deformation groove, effectively reducing the deformation resistance and guiding the deformation of the deformation part, but also provides space for the deformation part to swing relative to each other in the areas on both sides of the deformation groove.
[0008] Preferably, the connecting part includes connecting holes at both ends of the flexible hinge. Fasteners pass through the connecting holes and are screwed and locked to the corresponding movable part and the preset station, respectively, so that the movable part can be movably connected to the corresponding preset station. The connecting part is attached to the corresponding target and locked by the fasteners passing through the connecting holes, ensuring that the connecting part is reliably fixed to the corresponding target, thus playing a role in guiding movement and reliable connection.
[0009] Preferably, a reinforcing ring is provided around the lower end of the connecting hole to limit the deformation of the connecting hole under stress. The reinforcing ring is located at the lower end of the connecting hole, which not only effectively improves the structural strength of the connecting hole and prevents the connecting hole from deforming and breaking under the tension of fasteners, but also hides the reinforcing ring below the connecting part, ensuring that the top surface of the connecting part is flat and aesthetically pleasing.
[0010] Preferably, the bottom surface of the flexible hinge is provided with reinforcing ribs between the connecting part and the deformable part. Multiple reinforcing ribs are equidistantly spaced along the width of the flexible hinge to limit tensile deformation between the connecting part and the deformable part. The reinforcing ribs enhance the connection strength between the connecting part and the deformable part, ensuring a constant distance between them and preventing the flexible hinge from deforming and tearing due to excessive tensile force.
[0011] Preferably, the top surface of the flexible hinge is flat, and the top surface of the deformable part is raised upward to form the clean contact surface. The clean contact surface is positioned facing the mattress, which ensures that the mattress is clean and also uses the flat surface to reduce friction, thereby reducing wear and damage to the mattress surface.
[0012] Preferably, the flexible hinge is made of rubber or plastic, which combines structural strength and flexibility, ensuring that the flexible hinge still has good structural strength after frequent deformation.
[0013] Preferably, the movable part is connected to the corresponding preset workstation by at least three separate flexible hinges. By using three or more flexible hinges, the movable part is securely connected to the preset workstation and can move along a preset path, ensuring flexible operation. The deformation grooves of the flexible hinges are located on the same straight line, ensuring that the movable part can swing around the deformation groove as a center.
[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 swayably connected to the front edge of the lumbar support plate via a flexible hinge, the thigh plate is swayably connected to the rear edge of the hip support plate via a flexible hinge, and the calf plate is swayably mounted on the rear edge of the thigh plate via a flexible hinge. The lumbar support plate, thigh plate, and calf plate are all mounted in corresponding preset positions via flexible hinges, so that the support plate assembly can adjust the contour of the support surface by controlling the movable part, thereby meeting the user's usage needs in different scenarios.
[0015] The beneficial effects of this utility model are as follows: The movable part is installed on a preset work position by a flexible hinge. The flexible hinge guides the movement of the movable part by its own deformation, eliminating the need for mechanical hinges. It ensures that the clean contact surface faces the mattress, preventing the mattress from being contaminated with lubricating oil. Furthermore, the friction and noise generated ensure the flexibility of the movable part's movement, thus improving the user experience. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the bed frame;
[0017] Figure 2 This is a schematic diagram of the structure of the flexible hinge;
[0018] Figure 3 This is a schematic diagram of the flexible hinge when it is bent.
[0019] Figure 4 This is a top view of the flexible hinge structure.
[0020] In the diagram: 1. Frame, 2. Flexible hinge, 3. Clean contact surface, 4. Deformation part, 5. Connecting part, 6. Deformation groove, 7. Connecting hole, 8. Reinforcing ring, 9. Reinforcing rib, 10. Waist support plate, 11. Hip support plate, 12. Back support plate, 13. Thigh plate, 14. Lower leg plate. Detailed Implementation
[0021] The essential features of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0022] like Figure 1The illustrated bed frame with flexible hinges includes a frame body 1 and a support plate assembly mounted on the frame body 1. The support plate assembly includes a fixed part fixed to the frame body 1 and a movable part that can move relative to the fixed part. The movable part is mounted in a preset position via a flexible hinge 2. The flexible hinge 2 guides the movement of the movable part through its own deformation. The top surface of the middle part of the flexible hinge 2 is exposed upwards to form a clean contact surface 3. The top surface of the flexible hinge 2 is flat, and the top surface of the deformable part 4 is raised upwards to form the clean contact surface 3. The movable part is mounted in the preset position via the flexible hinge 2. The flexible hinge 2 guides the movement of the movable part through its own deformation, eliminating the need for mechanical hinges. By using the clean contact surface 3 facing the mattress, it ensures the mattress remains clean and prevents the mattress from being contaminated with lubricating oil. It also ensures the flexibility of the movable part's movement by generating friction and noise, thus improving the user experience.
[0023] In this embodiment, the flexible hinge 2 is made of rubber or plastic, giving it both good deformation performance and structural strength. This ensures that the movable part can swing flexibly relative to the preset work position while maintaining a constant distance between the movable part and the preset work position. This ensures that the movable part can move precisely along a preset path, thereby improving the controllability of the support plate assembly. Furthermore, because the flexible hinge 2 can deform moderately under stress, the distance between the movable part and the preset work position can change appropriately, effectively reducing the control precision required for the movable part, and consequently reducing the control precision required for the drive and transmission mechanisms.
[0024] In actual operation, the flexible hinge 2 includes a centrally located deformation part 4 and connecting parts 5 disposed on both sides of the deformation part 4 (such as...). Figure 2 As shown, the deformable part 4 guides the relative movement of the connecting part 5 through bending deformation, so that the movable part installed at the preset work position can move along the preset path. During installation, the connecting parts 5 on both sides of the flexible hinge 2 are respectively fixed to the movable part and the corresponding preset work position, so that the movable part can move around the preset work position under the guidance of the flexible hinge 2, thereby adjusting the contour of the supporting surface.
[0025] In actual operation, the connecting part 5 includes connecting holes 7 (such as those provided at both ends of the flexible hinge 2) Figure 4 As shown, fasteners pass through the connecting holes 7 and are screwed and locked to the corresponding movable parts and preset positions respectively, so that the movable parts can be movably connected to the corresponding preset positions. During installation, the connecting part 5 is attached to the corresponding target and locked by the fasteners passing through the connecting holes 7, so that the connecting part 5 is linked with the corresponding target.
[0026] In actual operation, a reinforcing ring 8 is provided around the lower end of the connecting hole 7 to limit the deformation of the connecting hole 7 under stress. The reinforcing ring 8 extends downward from the lower end of the connecting hole 7, and the integral structure enhances the structural strength and provides radial positioning for the fastener.
[0027] In actual operation, the bottom surface of the deformable part 4 is provided with a deformation groove 6 that extends through the width direction of the flexible hinge 2 (e.g., Figure 3 As shown, the flexible hinge 2 bends around the deformation groove 6 and guides the movable part to swing. The deformation groove 6 is located in the middle of the flexible hinge 2 and extends through it in the width direction, so that the connecting parts 5 on both sides of the flexible hinge 2 can swing relative to each other around the deformation groove, thereby guiding the corresponding targets fixed to each connecting part 5 to swing relative to each other. The cross-sectional profile of the deformation groove 6 is that of a large opening and a small cavity. The area where the deformation groove 6 is opened in the deformation part 4 has a relatively thin thickness, which effectively reduces the deformation resistance in this area. The deformation groove 6 also provides a space for swinging on both sides of its opening, effectively improving the flexibility of deformation.
[0028] In actual operation, the bottom surface of the flexible hinge 2 is provided with reinforcing ribs 9 located between the connecting part 5 and the deformable part 4. Multiple reinforcing ribs 9 are equidistantly distributed along the width direction of the flexible hinge 2 to limit the tensile deformation between the connecting part 5 and the deformable part 4. The reinforcing ribs 9 span between the deformable part 4 and the connecting part 5 and are symmetrically arranged with the deformation groove 6 as the center, effectively reducing the deformation of the flexible hinge 2 caused by pulling, thereby ensuring that the movable part swings with a preset radius.
[0029] In actual operation, the fixed part includes a lumbar support plate 10 and a hip support plate 11 fixedly connected in the front and back directions, and 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 a flexible hinge 2. The thigh plate 13 is swayably connected to the rear edge of the hip support plate 11 through a flexible hinge 2. The calf plate 14 is swayably mounted on the rear edge of the thigh plate 13 through a flexible hinge 2, so that the back support plate 12, the thigh plate 13 and the calf plate 14 can swing independently around the corresponding flexible hinge 2. The calf plate 14 will also swing synchronously with the thigh plate 13, so that the calf plate 14 has a variety of movement paths, thereby making the support surface have a variety of contours.
[0030] In actual operation, at least three separate flexible hinges 2 are provided between the movable part and the corresponding preset work station. Three separate flexible hinges 2 are provided between the back support plate 12 and the lumbar support plate 10, between the thigh plate 13 and the hip support plate 11, and between the calf plate 14 and the thigh plate 13. This ensures a firm connection between adjacent parts and also ensures that the back support plate 12, thigh plate 13, and calf plate 14 are set at the same height in each area along the width of the bed frame, preventing the user from tilting to the side when lying down.
Claims
1. A bed frame with flexible hinges, comprising a frame body (1) and a support plate assembly disposed on the frame body (1), the support plate assembly comprising a fixed part fixedly connected to the frame body (1) and a movable part movable relative to the fixed part, characterized in that, The movable part is installed on a preset work station via a flexible hinge (2). The flexible hinge (2) guides the movement of the movable part through its own deformation. The top surface of the middle part of the flexible hinge (2) is exposed upward to form a clean contact surface (3).
2. A bed frame with flexible hinges according to claim 1, characterized in that, The flexible hinge (2) includes a centrally located deformation part (4) and connecting parts (5) disposed on both sides of the deformation part (4). The deformation part (4) guides the connecting parts (5) to move relative to each other through bending deformation, so that the movable part installed at the preset work position can move along the preset path.
3. A bed frame with flexible hinges according to claim 2, characterized in that, The bottom surface of the deformable part (4) is provided with a deformation groove (6) that runs through the width direction of the flexible hinge (2). The flexible hinge (2) bends around the deformation groove (6) and guides the movable part to swing.
4. A bed frame with flexible hinges according to claim 3, characterized in that, The cross-sectional profile of the deformation groove (6) is characterized by a large opening and a small cavity.
5. A bed frame with flexible hinges according to claim 2, characterized in that, The connecting part (5) includes connecting holes (7) provided at both ends of the flexible hinge (2). Fasteners pass through the connecting holes (7) and are screwed and locked to the corresponding movable part and the preset station respectively, so that the movable part can be movably connected to the corresponding preset station.
6. A bed frame with flexible hinges according to claim 5, characterized in that, A reinforcing ring (8) is provided around the lower port of the connecting hole (7) to limit the deformation of the connecting hole (7) under force.
7. A bed frame with flexible hinges according to claim 2, characterized in that, The bottom surface of the flexible hinge (2) is provided with reinforcing ribs (9) between the connecting part (5) and the deformable part (4). The reinforcing ribs (9) are multiple and are equidistantly distributed along the width direction of the flexible hinge (2) to limit the tensile deformation between the connecting part (5) and the deformable part (4).
8. A bed frame with flexible hinges according to claim 2, characterized in that, The top surface of the flexible hinge (2) is flat, and the top surface of the deformable part (4) is raised upward to form the clean contact surface (3); or, the flexible hinge is made of rubber or plastic.
9. A bed frame with flexible hinges according to any one of claims 1-8, characterized in that, The movable part is provided with at least three separate flexible hinges (2) between it and the corresponding preset work station.
10. A bed frame with flexible hinges according to any one of claims 1-8, 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) by a flexible hinge (2). The thigh plate (13) is swayably connected to the rear edge of the hip support plate (11) by a flexible hinge (2). The calf plate (14) is swayably mounted on the rear edge of the thigh plate (13) by a flexible hinge (2).