Bed frame
By designing vertically foldable upper and lower parts on the backrest of the bed frame, the problem that the existing bed frame backrest cannot be folded and improved support is solved, and the backrest profile and height adjustment is achieved, which significantly improves user experience and support.
Patent Information
- Application Number
- CN202422253358.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-13
AI Technical Summary
The backrest of the existing bed frame cannot be folded to improve support, and the contact area between the backrest and the user cannot be adjusted, which affects the user experience.
A bed frame is designed, and the backrest includes a vertically foldable upper and lower portions, which realizes the movable installation of the upper portion through the folding assembly, adjusts the contour and height of the backrest, and provides different support feeling.
By adjusting the height and contour of the backrest, different support feels, significantly improving the user experience and support.
Smart Images
Figure CN223025720U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of bedding, and particularly to a bed frame. Background Art
[0002] The existing bed frame includes a base and a backrest arranged at the front edge of the base. The top of the backrest can be swung and switched between a vertical position and a reclined position tilted forward, so that the included angle between the leaning surface formed by the rear wall of the backrest and the top surface of the base is always greater than 90°, and a comfortable support is obtained by making the user tend to lie on the back. However, the existing backrest cannot be folded towards the base to improve the support, and the contact area between the backrest and the user cannot be adjusted, affecting the use experience. Content of the Utility Model
[0003] In order to solve the deficiencies of the existing technology, the utility model provides a bed frame, and an upper part that can be vertically folded is arranged on the backrest to change the contour of the backrest, thereby providing different support sensations for the user and improving the use experience.
[0004] The utility model is realized in the following way: A bed frame includes a base and a backrest arranged at the front edge of the base. The backrest includes a bracket, and the bracket includes a lower part, an upper part and a folding component. The upper part is movably installed on the lower part through the folding component, so that the top of the backrest can be vertically folded and adjusted. The backrest includes a lower part and a movable upper part. The upper part can be vertically folded towards the base side, so that the contour of the backrest can be changed. By adjusting the height of the backrest, different support sensations are provided for the user, effectively improving the support experience.
[0005] Preferably, the folding component includes at least two separately arranged folding parts. The folding parts are bridged between the corresponding end edges of the upper part and the lower part, so that both ends of the upper part are folded synchronously. The two separately arranged folding parts can guide the upper part to fold along a preset path, thereby ensuring that the change of the backrest contour can be precisely controlled. The folding parts are separately arranged at both ends of the upper part, ensuring that both ends of the upper part can move synchronously and ensuring that the two ends of the upper part will not be at different heights.
[0006] Preferably, the folding part includes at least three flap plates sequentially connected in series by a rotating shaft, so that adjacent flap plates can swing around the corresponding rotating shaft as the center. The flap plates are sequentially connected by the rotating shaft, effectively increasing the swing radius of the folding part, ensuring that there is a large bending radius between the upper part and the lower part of the backrest, and preventing the connection part between the upper part and the lower part of the backrest from being worn due to excessive deformation.
[0007] Preferably, the distances between adjacent rotating shafts on the folding part are the same, so that adjacent flap plates can swing freely and form a contour curve tending to be circular arc shape, playing a protective role in the connection area between the upper part and the lower part of the backrest.
[0008] Preferably, positioning teeth are provided between the corresponding ends of adjacent flaps, and the adjacent flaps are swung into position within a preset angle range and are locked in position by the positioning teeth. The positioning teeth between adjacent flaps mesh with each other, which not only limits the swing angle of the adjacent flaps, ensuring that the adjacent flaps can only swing within the preset angle range, but also can be locked in position after the adjacent flaps swing to the preset position, effectively bearing the leaning force from the user, ensuring that the backrest contour remains stable and providing stable support for the user.
[0009] Preferably, the two ends of the folding member are provided with connecting parts with mounting holes, the connecting parts are attached to the preset positions and fixed by fasteners passing through the mounting holes. The folding member is fixed to the upper part and the lower part respectively through the connecting parts at both ends, ensuring that the upper part and the lower part can achieve deformation under the guidance of the folding member.
[0010] Preferably, a reinforcing iron sheet is connected between the top ends of the folding members, and the middle section of the reinforcing iron sheet is fixedly connected to the upper part. The reinforcing iron sheet is used to ensure that the relative positions between the top ends of the folding members are fixed, and the relative positions between the upper part and the folding members are fixed, and the heights between the two ends and the middle part of the upper part change synchronously.
[0011] Preferably, the backrest includes a fixed backrest bag wrapping the lower part and a movable backrest bag wrapping the upper part, and the movable backrest bag can be folded and switched between the upper use position and the lower use position. The position of the fixed backrest bag remains fixed, the movable backrest bag can be moved relative to the fixed backrest bag, the upper part swings and drives the movable backrest bag to swing synchronously, so that the movable backrest can be switched between the upper use position located above the fixed backrest bag and the lower use position overlapped with the fixed backrest bag in the front-to-back direction.
[0012] Preferably, when the movable backrest is in the upper use position, the movable backrest is located above the fixed backrest. The movable backrest and the fixed backrest are combined to form a leaning surface for the user to contact, and the leaning comfort is improved by increasing the height of the leaning surface.
[0013] Preferably, when the movable backrest is in the lower use position, the movable backrest is stacked front and back with the fixed backrest, so that the rear wall of the movable backrest forms an exposed leaning surface, and the user's waist is supported by lowering the height of the leaning surface, thereby improving the support.
[0014] Preferably, the movable backrest and the fixed backrest are separated by a cutting groove, and a deformation space is formed by providing the cutting groove, so that the movable backrest can swing freely relative to the fixed backrest, and the fabric safety of the backrest at the connection between the movable backrest and the fixed backrest is effectively protected, thereby effectively extending the service life of the backrest.
[0015] Preferably, the backrest includes a cover assembly that wraps the bracket. The cover assembly includes a front sponge pad covering the front wall of the bracket, a rear sponge pad covering the rear wall of the bracket, and a top sponge pad covering the top surface of the bracket. The front sponge pad, the rear sponge pad, and the top sponge pad wrap the bracket and form the fixed backrest and the movable backrest. The front sponge pad and the rear sponge pad are stacked front to back to form the fixed backrest and the movable backrest. The upper parts of the front sponge pad and the rear sponge pad move synchronously with the upper part, so that the movable backrest can swing flexibly and switch freely between different working positions.
[0016] The beneficial effects of the present utility model: The backrest includes a lower part and a movable upper part. The upper part can be vertically folded towards the base side, so that the contour of the backrest can be changed. By adjusting the height of the backrest, different support sensations can be provided for the user, effectively improving the support experience. Description of the Drawings
[0017] Figure 1 Schematic diagram of the bed frame structure when the movable backrest is in the lower working position;
[0018] Figure 2 Schematic diagram of the bed frame structure when the movable backrest is in the upper working position;
[0019] Figure 3 Schematic diagram of the disassembled structure of the backrest;
[0020] Figure 4 Schematic diagram of the folding member;
[0021] Figure 5 Schematic diagram of the folding member from another perspective
[0022] In the figure: 1, base; 2, backrest; 3, upper part; 4, lower part; 5, folding member; 6, flap; 7, rotating shaft; 8, positioning teeth; 9, mounting hole; 10, connecting part; 11, reinforcing iron sheet; 12, fixed backrest; 13, movable backrest; 14, front sponge pad; 15, rear sponge pad; 16, top sponge pad. Detailed Embodiments
[0023] The following further illustrates the substantial features of the present utility model in conjunction with the drawings of the specification and the detailed embodiments.
[0024] Such as Figure 1 And 2A bed frame as shown includes a base 1 and a backrest 2 provided at the front edge of the base 1. The backrest 2 includes a bracket, and the bracket includes a lower part 4, an upper part 3 and a folding assembly. The upper part 3 is movably mounted on the lower part 4 through the folding assembly, so that the top of the backrest 2 can be vertically folded and adjusted. The backrest 2 includes a lower part 4 and a movable upper part 3. The upper part 3 can be vertically folded toward the side of the base 1, so that the contour of the backrest 2 can be changed. By adjusting the height of the backrest 2, different support sensations can be provided for the user, effectively improving the support experience.
[0025] In actual operation, the upper part 3 and the lower part 4 are connected by a folding assembly. The folding assembly includes at least two separate folding members 5. The folding members 5 straddle the corresponding end edges of the upper part 3 and the lower part 4, so that both ends of the upper part 3 are folded synchronously. The folding member 5 can be switched between a vertical state and a bent state with the top folded backward under the action of an external force, so that the upper part 3 can be vertically swung under the guidance of the top of the folding member 5, thereby adjusting the contour of the backrest 2 and providing different support sensations for the user.
[0026] In actual operation, the backrest 2 includes a movable backrest cushion 13 that wraps the upper part 3, a fixed backrest cushion 12 that wraps the lower part 4, and a connecting part that wraps the folding assembly. The connecting part can be switched between a vertical state and a bent state, so that the movable backrest cushion 13 can swing and switch between an upper use position and a lower use position and be positioned.
[0027] In actual operation, when the movable backrest cushion 13 is in the upper use position, the movable backrest cushion 13 is located above the fixed backrest cushion 12. The rear walls of the movable backrest 2 and the fixed backrest 2 facing the base 1 are both open backward and joined to form a large-height leaning surface. The waist, shoulders, neck and head of the user can all lean on the leaning surface, and the leaning comfort is improved by increasing the contact area. When the movable backrest cushion 13 is in the lower use position, the movable backrest cushion 13 and the fixed backrest cushion 12 are stacked front to back. The rear wall of the fixed backrest 2 is blocked by the movable backrest 2, and the rear wall of the movable backrest 2 is open backward and forms a lower leaning surface. The leaning surface supports the waist of the user, making the shoulders, neck and head suspended, and the support for the user's waist is improved by reducing the contact area. By adjusting the position of the movable backrest cushion 13, different support sensations are provided for the user, thereby meeting the requirements of the user.
[0028] In actual operation, the movable backrest cushion 13 in the upper use position is switched to the lower use position by swinging downward, and there is no need to reserve a space for the movable backrest cushion 13 to swing in the front area of the backrest 2 facing away from the base 1, so that the front wall of the fixed backrest cushion 12 can be set to abut against the wall, which is convenient for arranging the bed frame and also convenient for the backrest 2 to deform and switch for use.
[0029] In actual operation, the folding member 5 includes at least three flap plates 6 sequentially connected in series by a rotating shaft 7 (as Figure 5 shown), so that adjacent flap plates 6 can swing around the corresponding rotating shaft 7 as the center. The distance between adjacent rotating shafts 7 on the folding member 5 is the same (as Figure 4 shown). By arranging multiple flap plates 6, the angle required for the swing between adjacent flap plates 6 is reduced, and then by increasing the bending radius of the folding member 5, the fabric and filler at the joint part are protected, preventing the fabric and filler at the joint part from being damaged due to excessive extrusion caused by the too small bending radius of the folding member 5, and effectively extending the service life of the backrest 2.
[0030] In actual operation, positioning teeth 8 are provided between the corresponding end parts of adjacent flap plates 6, and adjacent flap plates 6 swing into place within a preset angle range and are positioned by being clamped by the positioning teeth 8. The positioning teeth 8 of adjacent flap plates 6 are engaged with each other, which not only ensures that adjacent flap plates 6 can swing freely within a preset range, but also ensures that adjacent flap plates 6 are clamped and positioned after swinging into place, ensuring that the backrest 2 will not deform and collapse when being leaned on by a user, and providing effective support for the user.
[0031] In actual operation, connecting parts 10 with mounting holes 9 are arranged at both ends of the folding member 5, and the connecting parts 10 are attached to a preset working position and are fixedly connected by fasteners passing through the mounting holes 9. The connecting parts 10 are fixedly connected to the upper part 3 or the lower part 4 by fasteners passing through the mounting holes 9, ensuring that the top and bottom ends of the folding member 5 are firmly connected to the upper part 3 and the lower part 4 respectively, and further ensuring that the deformation action of the folding member 5 can be effectively transmitted to the upper part 3, realizing the switching of the movable backrest 13 between the upper use position and the lower use position.
[0032] In actual operation, a reinforcing iron sheet 11 is bridged between the top ends of the folding member 5, and the middle section of the reinforcing iron sheet 11 is fixedly connected to the upper part 3. The two end parts of the reinforcing iron sheet 11 are respectively fixedly connected to the folding members 5 on both sides, and the middle section is fixedly connected to the upper part 3, ensuring that the middle section of the upper part 3 can also deform synchronously with the folding member 5, and ensuring the matching linkage between the two ends and the middle part of the upper part 3.
[0033] In actual operation, the backrest 2 includes an outer cover assembly that wraps the bracket, and the outer cover assembly includes a front sponge pad 14 covering the front wall of the bracket, a rear sponge pad 15 covering the rear wall of the bracket, and a top sponge pad 16 covering the top surface of the bracket (as Figure 3As shown, the front sponge pad 14, the rear sponge pad 15 and the top sponge pad 16 wrap the bracket and form the fixed backrest 12 and the movable backrest 13. The movable backrest 13 and the fixed backrest 12 are separated by a cutting groove. The cutting groove is arranged in the middle of the front sponge pad 14. When the movable backrest 13 switches to the lower use position, the front sponge pad 14 can be separated and folded up and down with the cutting groove as the boundary, ensuring that the upper and lower parts of the front sponge pad 14 can effectively return to their deformed states when the movable backrest 13 switches to the upper use position, playing a role in protecting the front sponge pad 14 and extending the service life of the front sponge.
Claims
1. A bed frame, comprising a base (1) and a backrest (2) arranged at the front edge of the base (1), wherein the backrest (2) comprises a bracket, characterized in that: The bracket comprises a lower part (4), an upper part (3) and a folding assembly, wherein the upper part (3) is movably mounted on the lower part (4) via the folding assembly so that the top of the backrest (2) can be folded and adjusted vertically.
2. A bed frame according to claim 1, characterized in that: The folding assembly comprises at least two folding members (5) which are arranged separately. The folding members (5) are connected between corresponding end edges of the upper part (3) and the lower part (4) so that both ends of the upper part (3) are folded synchronously.
3. A bed frame according to claim 2, characterized in that: The folding member (5) comprises at least three flaps (6) which are connected in series in sequence via a rotating shaft (7), so that adjacent flaps (6) can swing around the corresponding rotating shaft (7).
4. A bed frame according to claim 3, characterized in that: The distances between adjacent rotating shafts (7) on the folding member (5) are the same.
5. A bed frame according to claim 3, characterized in that: Positioning teeth (8) are provided between corresponding ends of adjacent flaps (6), and the adjacent flaps (6) are swung into position within a preset angle range and are clamped and positioned by the positioning teeth (8).
6. A bed frame according to claim 2, characterized in that: Connecting parts (10) with mounting holes (9) are arranged at the two ends of the folding part (5); the connecting parts (10) are fitted at a preset position and fixed by fasteners passing through the mounting holes (9).
7. A bed frame according to claim 2, characterized in that: A reinforcing iron sheet (11) is connected across the top ends of the folding parts (5), and the middle section of the reinforcing iron sheet (11) is fixedly connected to the upper portion (3).
8. A bed frame according to any one of claims 1 to 7, characterized in that: The backrest (2) comprises a fixed backrest bag (12) wrapping the lower part (4) and a movable backrest bag (13) wrapping the upper part (3); the movable backrest bag (13) can be folded and switched between an upper use position and a lower use position.
9. A bed frame according to claim 8, characterized in that: When the movable backrest (13) is in the upper use position, the movable backrest (13) is located above the fixed backrest (12); or, when the movable backrest (13) is in the lower use position, the movable backrest (13) and the fixed backrest (12) are stacked front to back; or, the movable backrest (13) and the fixed backrest (12) are separated by a cutting groove.
10. A bed frame according to claim 8, characterized in that: The backrest (2) includes an outer cover component that wraps the bracket, and the outer cover component includes a front sponge pad (14) covering the front wall of the bracket, a rear sponge pad (15) covering the rear wall of the bracket, and a top sponge pad (16) covering the top surface of the bracket. The front sponge pad (14), the rear sponge pad (15), and the top sponge pad (16) wrap the bracket and form the fixed backrest (12) and the movable backrest (13).