Bed frame with lifting backward moving type lifting part

Abstract

The invention relates to a bed frame with a lifting backward moving type lifting part. An existing bed frame is inconvenient to replace bed products. A containing cavity is formed in the outer frame, the inner frame is arranged in the containing cavity, the inner frame comprises a base, a rotary disc, a lifting part and a bearing plate which are sequentially arranged from bottom to top, and the bearing plate can be lifted through the lifting part to move backwards and rotate through the rotary disc so that the bearing plate can be separated from the containing cavity upwards, and the direction of the bearing plate can be adjusted through rotation of the rotary disc. By arranging the lifting part capable of lifting and moving the bearing plate backwards and the rotating disc for guiding the bearing plate to rotate, the bearing plate can be lifted, a bed sheet can be conveniently disassembled and assembled, the physical strength of cleaning personnel is saved, the bearing plate can be moved backwards during lifting, space is provided for rotation of the bearing plate, then the cleaning personnel can conveniently sort all the edges of a mattress, and the use experience is improved.

Description

Technical Field

[0001] This invention relates to the field of bedding, and more specifically to a bed frame. Background Technology

[0002] Existing hotel beds consist of bed frames and mattresses. Due to frequent guest changes, bedding needs to be changed frequently. When changing sheets, cleaning staff need to walk along the edge of the bed frame to secure the sheets to the corresponding edges of the mattress, and also need to lift the edges of the mattress to press them underneath. This requires considerable physical effort and affects the convenience of changing sheets. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a bed frame with a lifting and rearward-moving lifting mechanism. This mechanism can not only lift the support plate for easy removal and installation of bed sheets, but also move the support plate backward during lifting, providing space for the support plate to rotate. This facilitates cleaning staff in tidying up the edges of the mattress, thus improving the user experience.

[0004] This invention is achieved through the following method: a bed frame with a lifting and repositioning mechanism, comprising an outer frame with an internal receiving cavity and an inner frame disposed within the receiving cavity. The inner frame includes a base, a turntable, a lifting mechanism, and a support plate arranged sequentially from bottom to top. The support plate can be lifted and moved backward by the lifting mechanism and rotated by the turntable, allowing the support plate to move upward out of the receiving cavity, and its orientation can be adjusted by rotating the turntable. The lifting mechanism for lifting and repositioning the support plate and the turntable for guiding the rotation of the support plate not only lift the support plate, facilitating the removal and installation of bed sheets and saving the effort of cleaning personnel, but also allow the support plate to move backward during lifting, providing space for its rotation, thereby facilitating cleaning personnel to tidy the edges of the mattress and improving the user experience.

[0005] Preferably, the lifting unit includes two sets of symmetrically arranged hinge components and a crossbar spanning between the hinge components. Each hinge component includes four staggered hinge rods. The lower rear end of each hinge component is rotatably connected to the turntable, the lower front end is slidably connected to the turntable, the upper front end is rotatably connected to the support plate, and the upper rear end is slidably connected to the support plate. The hinge component guides the support plate to rise and move backward with the lower front end as the base point. Two sets of hinge components are arranged opposite each other and connected by a crossbar. The hinge components guide the support plate to rise and fall smoothly in a horizontal position through vertical extension and retraction. The crossbar is used to bear the horizontal force, ensuring that the hinge components remain vertical and achieve vertical lifting and lowering. The hinge components include four intersecting hinge rods, which respectively form the upper front part, upper rear part, lower front part, and lower rear part of the hinge components. The lower front part and upper rear part are rotatably connected to the turntable and the support plate, respectively. The upper front part and lower rear part can slide against the support plate and the turntable. When the hinge components extend vertically, the lower rear part will move towards the lower front part, and then drive the support plate to move backward through the upper rear part, so that a space for the support plate to rotate is formed between the front edge of the support plate and the front plate, ensuring that the support plate can rotate freely without the need for cleaning personnel to walk around the bed frame.

[0006] Preferably, the hinge rod includes a lower rod forming the lower rear end at its bottom, a second lower rod forming the lower front end at its bottom, two upper rods forming the upper rear end at their top ends, and an upper rod forming the upper front end at its top end. The lower rod and the second lower rod are rotatably connected at their middle portions, as are the upper rod and the second upper rod. The top end of the lower rod is rotatably connected to the bottom end of the second upper rod, and the top end of the second lower rod is rotatably connected to the bottom end of the upper rod. The middle portions of the lower rod and the second lower rod, the middle portions of the upper rod and the second upper rod, the top end of the lower rod and the bottom end of the second upper rod, and the top end of the second lower rod and the bottom end of the upper rod are all hinged to each other, allowing the four hinge rods to move in unison. This enables the support plate to be moved forward and backward during lifting, achieving both lifting and rearward movement to avoid obstacles in a single action.

[0007] Preferably, the hinge components are arranged in the same vertical plane so that the hinge components can be raised and lowered vertically and the support plate can be moved forward by adjusting the distance between the upper rear end and the upper front end. The hinge rod is flat, which can effectively support the vertical force and improve the reliability of the support.

[0008] Preferably, the upper and lower ends reciprocate along the bottom surface of the support plate via upper rollers. The upper rollers are in contact with the bottom surface of the support plate, which not only supports the support plate but also effectively reduces the resistance when the upper and lower ends move along the bottom surface of the support plate, reducing the physical exertion of cleaning personnel and protecting the support plate.

[0009] Preferably, the crossbar includes a first bar positioned between the tops of the two lower bars and a second bar positioned between the tops of the upper bar. At least one retractable pneumatic rod is provided between the first and second bars to assist in lifting the support plate. The first and second bars both serve to maintain the distance between the two sets of hinge components, ensuring the hinge components remain vertical, and provide mounting points for the two ends of the actuation rod. Using the pneumatic rod reduces the force required to lift the support plate, effectively saving the physical effort of cleaning personnel.

[0010] Preferably, the top surface of the turntable has an elongated guide groove, and the lower rear end is rotatably mounted at the rear end of the guide groove via a rotating shaft. The lower front end can reciprocate along the length of the guide groove via a lower roller. The guide groove guides and limits the lower roller, ensuring that the lower front end can move back and forth along a preset path, thereby ensuring the vertical lifting and lowering of the hinge assembly.

[0011] Preferably, the front end of the guide groove is provided with a movable limiting plate. When the lifting part is switched to the raised state, the lower roller moves backward along the guide groove and is locked and positioned by the limiting plate in the locked state to restrict the support plate from falling. The limiting plate is located at the front end of the guide groove and can switch between locked and unlocked states, serving to lock and position the lower roller. The limiting plate in the locked state can restrict the lower roller from moving forward, thereby preventing the support plate from falling.

[0012] Preferably, the rear of the top surface of the turntable is provided with a liftable and resettable trigger. The trigger, when pressed down, drives the limiting plate from a locked state to an unlocked state via a transmission rope, allowing the lower roller to roll freely along the guide groove. The trigger can also be pressed down and, via a transmission rope, drive the limiting plate to an unlocked state, allowing the lower roller to move to the front end of the guide groove, thus allowing the support plate to fall back into the receiving cavity. When the lower roller moves backward and the support plate is raised to its position, the limiting plate uses its own weight to switch from the unlocked state to the locked state, ensuring that the support plate will not fall.

[0013] Preferably, the turntable is rotatably mounted on the base. The base and the turntable are concentrically arranged, and the center of the top surface of the base is provided with a positioning shaft for the turntable to be fitted. The base not only supports the turntable, but also guides the rotation of the turntable through the positioning shaft, ensuring that the support plate can reciprocate around the positioning shaft, which facilitates cleaning personnel to tidy up the edges of the mattress at a fixed work position.

[0014] Preferably, when the lifting unit is switched to the raised state, the turntable can rotate back and forth between the forward working position with the rear edge of the support plate facing backward and the lateral working position with the side edge of the support plate facing backward. The cleaning staff is located at the fixed working position behind the outer frame and can tidy up the edges of the mattress by rotating the support plate, which effectively improves work efficiency and reduces work intensity.

[0015] Preferably, the outer frame includes a rear plate, a front plate, and side plates disposed between corresponding ends of the rear and front plates. A pedal is provided on the rear plate, with its rear end exposed outside the outer frame and its front end capable of being linked with the trigger. The pedal protrudes from the rear wall of the rear plate, facilitating cleaning personnel to activate the trigger when the turntable returns to the forward position, thereby allowing the support plate to fall back into the receiving cavity.

[0016] The beneficial effects of this invention are as follows: The lifting part that can lift and move the support plate and the turntable that guides the rotation of the support plate can not only lift the support plate to facilitate the removal and installation of bed sheets and save the physical strength of cleaning staff, but also move the support plate backward when lifting to provide space for the support plate to rotate, thereby making it easier for cleaning staff to tidy up the edges of the mattress and improve the user experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the lifting part of the bed frame when it is in the raised state; Figure 2 This is a schematic diagram of the inner frame structure; Figure 3 This is a schematic diagram of the disassembled structure of the inner frame; Figure 4 This is a schematic diagram of the structure of the bed frame; Figure 5 This is a schematic diagram of the structure when the limiting plate is in the locked state; Figure 6 This is a schematic diagram of the structure when the limiting plate is in the unlocked state; In the diagram: 1. Base, 2. Turntable, 3. Lifting unit, 4. Support plate, 5. Lower rear end, 6. Lower front end, 7. Upper front end, 8. Upper rear end, 9. Lower rod, 10. Lower second rod, 11. Upper second rod, 12. Upper first rod, 13. Lower roller, 14. Limiting plate, 15. Guide groove, 16. Trigger, 17. Rear plate, 18. Front plate, 19. Side plate, 20. First rod, 21. Second rod, 22. Pneumatic rod, 23. Upper roller, 24. Transmission rope. Detailed Implementation The essential features of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1 and 2The bed frame shown includes an outer frame with a lifting and repositioning mechanism, comprising an outer frame with a receiving cavity and an inner frame disposed within the receiving cavity. The inner frame includes a base 1, a turntable 2, a lifting mechanism 3, and a support plate 4 arranged sequentially from bottom to top. The support plate 4 can be lifted and moved backward by the lifting mechanism 3 and rotated by the turntable 2, allowing the support plate 4 to move upward out of the receiving cavity and its orientation to be adjusted by rotating the turntable 2. The lifting mechanism 3, which can lift and move the support plate 4 backward, and the turntable 2, which guides the rotation of the support plate 4, not only lift the support plate 4 for easy removal and installation of bed sheets, saving cleaning staff's energy, but also allow the support plate 4 to move backward during lifting, providing space for its rotation and facilitating cleaning staff to tidy up the edges of the mattress, thus improving the user experience.

[0019] In actual operation, the turntable 2 is rotatably mounted on the base 1, the lifting part 3 is mounted above the turntable 2 and can rotate synchronously with the turntable 2, and the support plate 4 is mounted above the lifting part 3. The support plate 4 is used to support the mattress. The mattress can move up and down and back and forth synchronously under the guidance of the lifting part 3, and can also rotate under the guidance of the turntable 2.

[0020] When bedding needs to be changed, the cleaning staff stands at a fixed position behind the bed frame. First, the cleaning staff lifts the mattress upwards, using the lifting force combined with the elongating force generated by the pneumatic rod 22 to achieve the vertical extension and backward movement of the lifting part 3, causing the support plate 4 to detach from the receiving cavity and move backwards away from the front board 18. Then, when the support plate 4 is raised to the correct position, the limiting plate 14 switches from the unlocked state to the locked state, locking the lower roller 13 in place, thus ensuring that the support plate 4 can be effectively maintained at the raised height. Finally, the cleaning staff rotates the support plate 4 at the fixed position, allowing it to switch between a forward position and a side position, so that the edges of the mattress can move closer to the fixed position where the cleaning staff is located, making it convenient for the cleaning staff to tidy up the edges of the mattress.

[0021] When the bedding has been changed and arranged, the cleaning staff first rotates the support plate 4 back to its forward position, aligning the trigger 16 with the pedal. Then, the cleaning staff steps on the pedal to activate the trigger 16, causing the limiting plate 14 to reset to the unlocked state. The lower roller 13 then moves the support plate 4 forward along the guide groove 15 under the weight of the mattress, causing the hinge assembly to retract vertically and guide the support plate 4 back into the receiving cavity (e.g., ...). Figure 4 (As shown).

[0022] The above steps complete the bedding replacement, eliminating the need for cleaning staff to walk around the bed frame and effectively reducing the workload of lifting the mattress, thus improving ease of use.

[0023] In actual operation, the lifting unit 3 includes two symmetrically arranged sets of hinge components and a crossbar spanning between the hinge components. Each hinge component includes four staggered hinge rods. The lower rear end 5 of the hinge component is rotatably connected to the turntable 2, the lower front end 6 is slidably connected to the turntable 2, the upper front end 7 is rotatably connected to the support plate 4, and the upper rear end 8 is slidably connected to the support plate 4. The hinge component guides the support plate 4 to rise and move backward with the lower front end 6 as the base point. Specifically, the hinge rods include a lower rod 9 forming the lower rear end 5 at its bottom, a second lower rod 10 forming the lower front end 6 at its bottom, a second upper rod 11 forming the upper rear end 8 at its top, and an upper rod 12 forming the upper front end 7 at its top (e.g., ...). Figure 3 As shown), the lower rod 9 and the lower second rod 10 are rotatably connected at their middle parts, and the upper rod 12 and the upper second rod 11 are rotatably connected at their middle parts. The top end of the lower rod 9 is rotatably connected to the bottom end of the upper second rod 11, and the top end of the lower second rod 10 is rotatably connected to the bottom end of the upper rod 12. When the hinge assembly extends or retracts vertically, the lower front end 6 and the upper front end 7, as well as the lower rear end 5 and the upper rear end 8, always remain vertically aligned. The distance between the lower front end 6 and the lower rear end 5, as well as the distance between the upper front end 7 and the upper rear end 8, will increase or decrease synchronously with the lifting and lowering of the hinge assembly. When the hinge assembly extends vertically, the distance between the lower front end 6 and the lower rear end 5 decreases accordingly; conversely, when the hinge assembly retracts vertically, the distance between the lower front end 6 and the lower rear end 5 increases accordingly. In a preferred embodiment, the lower rear end 5 is rotatably connected to the rear end of the guide groove 15, and the position of the lower rear end 5 on the turntable 2 remains unchanged. The upper front end 7 is rotatably connected to the bottom of the support plate 4, and the position of the upper front end 7 on the support plate 4 remains unchanged. When the hinge assembly extends or retracts vertically, the relative position between the upper front end 7 and the lower rear end 5 can achieve relative lifting and relative forward and backward movement. The support plate 4 can use the lower rear end 5 as a base point to achieve lifting and forward and backward movement relative to the lower rear end 5, thereby enabling the support plate 4 to move backward synchronously when lifted. By increasing the distance between the front edge of the support plate 4 and the front plate 18, space is provided for the support plate 4 to rotate between the forward and lateral work positions.

[0024] In actual operation, the hinge components are arranged in the same vertical plane, allowing the hinge components to be raised and lowered vertically. The support plate 4 can be moved forward and backward by adjusting the distance between the upper rear end 8 and the upper front end 7. The two sets of hinge components are parallel to each other in the vertical plane and are connected and positioned by a crossbar. The crossbar includes a first bar 20 located between the tops of the lower two bars 10 and a second bar 21 located between the tops of the upper bar 12. At least one telescopic pneumatic rod 22 is provided between the first bar 20 and the second bar 21 to assist in lifting the support plate 4. The pneumatic rod 22 assists in lifting the support plate 4 and the mattress, effectively reducing the user's physical exertion.

[0025] In actual operation, the pushing force generated by the pneumatic rod 22 is less than the weight of the mattress. This ensures that the mattress can be lifted by its own weight without external force, ensuring that the mattress is reliably attached to the bed frame. It also ensures that the mattress can be lifted with a small lifting force, facilitating bedding changes by cleaning staff. Multiple pneumatic rods 22 can be used, and the total pushing force generated by all pneumatic rods 22 is less than the weight of the mattress. Distributing the pneumatic rods 22 to ensure the smooth lifting of the support plate 4 should also be considered an embodiment of the present invention.

[0026] In actual operation, the upper and lower ends 8 roll back and forth along the bottom surface of the support plate 4 via the upper roller 23, and the lower front end 6 rolls back and forth along the guide groove 15 via the lower roller 13. This effectively transmits the supporting force and reduces resistance, ensuring that the hinge assembly can rise and fall smoothly.

[0027] In actual operation, the top surface of the turntable 2 has an elongated guide groove 15. The lower rear end 5 is rotatably mounted at the rear end of the guide groove 15 via a rotating shaft. The lower front end 6 can reciprocate along the length of the guide groove 15 via a lower roller 13. There are two guide grooves 15 arranged in parallel to ensure that the lower rollers 13 on the two sets of hinged components can move back and forth along the corresponding guide grooves 15. The lower rear end 5 is rotatably connected to the front end of the guide groove 15 via a rotating shaft.

[0028] In actual operation, the front end of the guide groove 15 is provided with a movable limiting plate 14. When the lifting part 3 switches to the lifting state, the lower roller 13 moves backward along the guide groove 15 and is locked in place by the limiting plate 14, which is in the locked state, to restrict the falling of the support plate 4. When the hinge assembly is raised to the position, the lower roller 13 moves backward along the guide groove 15 to the rear position. At this time, the vertical projection of the limiting plate 14 and the lower roller 13 is misaligned, and the roller can automatically fall back to the locked state using its own gravity (e.g., Figure 5 As shown in the diagram, the lower roller 13 is prevented from moving forward due to the obstruction of the limiting plate 14, thus allowing the support plate 4 to stably support the mattress and maintain it at a preset height after the cleaning staff removes the lifting force. One end of the limiting plate 14 is rotatably connected to the front end of the guide groove 15, and the rear end is swingably disposed in the guide groove 15. The limiting plate 14 switches between a locked state and an unlocked state by swinging its rear end.

[0029] In actual operation, the rear top surface of the turntable 2 is equipped with a liftable and reset trigger 16. The trigger 16 presses down and drives the limiting plate 14 from a locked state to an unlocked state via the transmission rope 24, allowing the lower roller 13 to roll freely along the guide groove 15. When the mattress needs to be lowered and reset, the trigger 16 can be lowered by force, and the transmission rope 24 hidden inside the turntable 2 pulls the limiting plate 14 upwards to the unlocked state (e.g., ...). Figure 6As shown, the lower roller 13 moves forward under the weight of the mattress without obstruction, ensuring that the mattress can fall back to its original position. At this time, the limiting plate 14 remains in the unlocked state because it is supported by the lower roller 13.

[0030] In actual operation, the turntable 2 is rotatably mounted on the base 1. The base 1 and the turntable 2 are concentrically arranged, and the center of the top surface of the base 1 is provided with a positioning shaft for the turntable 2 to be fitted. When the lifting part 3 is switched to the raised state, the turntable 2 can reciprocate between a forward working position with the rear edge of the support plate 4 facing backward and a lateral working position with the side edge of the support plate 4 facing backward. When the support plate 4 is raised, it moves backward so that the center of the support plate 4 is located behind the positioning shaft. This allows the support plate 4 in the forward working position to be switched to the lateral working position by rotating 90° to the left or right. This allows the rear edge and side edges of the mattress to face the cleaning staff's fixed working position, and the front edge of the mattress can also be exposed on both sides of the bed frame when the support plate 4 is switched to the lateral working position, making it convenient for the cleaning staff to tidy up in the fixed working position or the temporary working position on both sides of the bed frame.

[0031] In actual operation, the outer frame includes a rear plate 17, a front plate 18, and side plates 19 disposed between corresponding ends of the rear plate 17 and the front plate 18. A pedal is provided on the rear plate 17, with its rear end exposed outside the outer frame and its front end linked to the trigger 16. Cleaning personnel can either directly drive the limiting plate 14 via the trigger 16 or indirectly drive the limiting plate 14 via the trigger 16 using the pedal; both methods should be considered specific embodiments of the present invention.

Claims

1. A bed frame with a lifting and repositioning mechanism, comprising an outer frame with a receiving cavity and an inner frame disposed within the receiving cavity, characterized in that, The inner frame includes a base (1), a turntable (2), a lifting part (3), and a support plate (4) arranged sequentially from bottom to top. The support plate (4) can be lifted and moved backward by the lifting part (3) and rotated by the turntable (2) so that the support plate (4) can be lifted and removed from the receiving cavity and its orientation can be adjusted by rotating the turntable (2).

2. A bed frame with a lifting and repositioning mechanism according to claim 1, characterized in that, The lifting part (3) includes two sets of hinge components arranged symmetrically and a crossbar spanning between the hinge components. The hinge component includes four staggered hinge rods. The lower rear end (5) of the hinge component is rotatably connected to the turntable (2), the lower front end (6) is slidably connected to the turntable (2), the upper front end (7) is rotatably connected to the support plate (4), and the upper rear end (8) is slidably connected to the support plate (4). The hinge component guides the support plate (4) to rise and move backward with the lower front end (6) as the base point.

3. A bed frame with a lifting and repositioning mechanism according to claim 2, characterized in that, The hinge rod includes a lower rod (9) forming the lower rear end (5) at its bottom end, two lower rods (10) forming the lower front end (6) at their bottom end, two upper rods (11) forming the upper rear end (8) at their top end, and an upper rod (12) forming the upper front end (7) at its top end. The lower rod (9) and the two lower rods (10) are rotatably connected at their middle parts, and the upper rod (12) and the two upper rods (11) are rotatably connected at their middle parts. The top end of the lower rod (9) is rotatably connected to the bottom end of the two upper rods (11), and the top end of the two lower rods (10) is rotatably connected to the bottom end of the upper rod (12).

4. A bed frame with a lifting and repositioning mechanism according to claim 3, characterized in that, The hinge assembly is arranged in the same vertical plane so that the hinge assembly can be raised and lowered vertically and the support plate (4) can be moved forward and backward by adjusting the distance between the upper rear end (8) and the upper front end (7); or, the upper rear end (8) rolls back and forth along the bottom surface of the support plate (4) by the upper roller (23); or, the crossbar includes a first rod (20) arranged between the tops of the lower two rods (10) and a second rod (21) arranged between the tops of the upper rod (12), and at least one telescopic pneumatic rod (22) is provided between the first rod (20) and the second rod (21) to assist in raising the support plate (4).

5. A bed frame with a lifting and repositioning mechanism according to claim 2, characterized in that, The turntable (2) has a long strip guide groove (15) on its top surface. The lower rear end (5) is rotatably mounted at the rear end of the guide groove (15) via a rotating shaft. The lower front end (6) can reciprocate along the length of the guide groove (15) via a lower roller (13).

6. A bed frame with a lifting and repositioning mechanism according to claim 5, characterized in that, The front end of the guide groove (15) is provided with a movable limiting plate (14). When the lifting part (3) is switched to the lifting state, the lower roller (13) moves backward along the guide groove (15) and is locked and positioned by the limiting plate (14) which is switched to the locked state, so as to restrict the support plate (4) from falling.

7. A bed frame with a lifting and repositioning mechanism according to claim 6, characterized in that, The turntable (2) is provided with a liftable and reset trigger (16) at the rear of its top surface. The trigger (16) is pressed down and driven by the transmission rope (24) to switch the limit plate (14) from the locked state to the unlocked state, so that the lower roller (13) can roll freely along the guide groove (15).

8. A bed frame with a lifting and repositioning mechanism according to claim 1, characterized in that, The turntable (2) is rotatably mounted on the base (1).

9. A bed frame with a lifting and repositioning mechanism according to claim 8, characterized in that, The base (1) and the turntable (2) are concentrically arranged. The center of the top surface of the base (1) is provided with a positioning shaft for the turntable (2) to be fitted. Alternatively, when the lifting part (3) is switched to the lifting state, the turntable (2) can reciprocate between the forward working position with the rear edge of the support plate (4) facing backward and the lateral working position with the side edge of the support plate (4) facing backward.

10. A bed frame with a lifting and repositioning mechanism according to claim 7, characterized in that, The outer frame includes a rear plate (17), a front plate (18), and a side plate (19) disposed between the corresponding ends of the rear plate (17) and the front plate (18). The rear plate (17) is provided with a pedal, the rear end of which is exposed outside the outer frame, and the front end can be linked with the trigger (16).

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