A push-pull bed

Abstract

The utility model provides a push-pull bed, which comprises a main bed frame and a sub-bed frame that can be pushed out from the bottom of the main bed frame, wherein the sub-bed frame comprises an upper bed frame connected to a bottom support frame, the bottom support frame is provided with at least two height-adjustable support rods, the support rods are switched to the support height when supporting the upper bed frame, the support rods are switched to the folding height and located below the main bed frame when the sub-bed frame is retracted, the upper bed frame is lifted up and placed above the bottom support frame after the bottom support frame slides out from the bottom of the main bed frame, the front side or both sides of the upper bed frame are supported on the support rods, at least one support piece is protruded on the back side of the upper bed frame and supported on the outer side of the main bed frame, and the upper bed frame and the main bed frame form a support surface with the same height. The utility model has the advantages of simple structure and convenient use, and the bed body can be expanded into a large bed according to the use requirement.

Description

Technical Field

[0001] This invention relates to the field of furniture technology, and more specifically to a pull-out bed. Background Technology

[0002] As living standards improve, people's demands for furniture are no longer satisfied with traditional structures. Instead, they hope that furniture can have more functions and more forms to adapt to different situations. Traditional furniture is mostly a rigid, fixed structure, such as bed frames. Its volume is fixed and cannot be adjusted. Bed frames that are too large are not easy to store, while bed frames that are too small cannot meet the needs of multiple people.

[0003] To enable flexible expansion of bed frames, many existing technologies employ drawer-type pull-out bed structures. These typically extend the bed frame by sliding it out, such as the pull-out bed with Chinese Utility Model Patent No. 201220284812.X, or a convertible double bed / single bed with Chinese Utility Model Patent No. 202120999349.6. Both involve extending a pull-out bed frame from the bottom of the main bed frame to widen the bed. However, in these pull-out bed frames, a height difference exists between the main bed frame and the pull-out bed frame after it is extended. When used as a double bed, this step in the middle affects the flatness of the bed surface, impacting comfort, and also prevents the placement of a double mattress. Summary of the Invention

[0004] The purpose of this invention is to provide a push-pull bed that has a simple structure, is easy to use, and can be extended into a large bed according to usage needs.

[0005] To achieve the above objectives, the solution of the present invention is:

[0006] A pull-out bed includes a main bed frame and a secondary bed frame that can be movably pushed out from the bottom of the main bed frame. The secondary bed frame includes an upper bed frame connected to a bottom support. The bottom support is provided with at least two support rods with switchable heights. When supporting the upper bed frame, the support rods switch to a supporting height. When the secondary bed frame is folded up, the support rods switch to a folded height and are located below the main bed frame. After the bottom support slides outward from the bottom of the main bed frame, the upper bed frame is raised upward and placed above the bottom support. The front side or both sides of the upper bed frame are supported on the support rods. At least one support piece is also provided on the rear side of the upper bed frame to support the outer side of the main bed frame. The upper bed frame and the main bed frame form a support surface with the same height.

[0007] Furthermore, the folded height of the support rod is lower than the support height, and the upper end of the support rod forms a support section that can be flipped upwards for support or folded downwards. When the support section is folded upwards to stand up, the support height is formed, and when the support section is folded downwards, the folded height is formed.

[0008] Furthermore, the support rod includes a support section movably connected above a support foot. The support section is rotatably connected to the upper end of the support foot via a connecting part. After the connecting part is flipped up, the support section is supported on the upper end of the support foot. A baffle plate extends upward from the front or outer side of the support section to stop the front or both sides of the upper bed frame.

[0009] Furthermore, the height of the support leg is lower than the height of the outer side of the main bed frame. A hole is provided longitudinally in the connecting part. Two oppositely arranged through holes are provided in the upper end of the support leg. A pivot shaft passes through the two through holes and the slot. In the two opposite sides of the support leg without through holes, one side forms a stop surface, and the other side forms a notch surface that can be folded out by the connecting part. An arc-shaped chamfer is formed on the side of the stop surface facing the connecting part.

[0010] Furthermore, at least two support plates are protruding from the rear side of the upper bed frame, with the two support plates located on both sides of the rear side of the upper bed frame respectively.

[0011] Furthermore, the bottom support includes two side rods, and an inclined connecting rod is pivotally connected between the two sides of the upper bed frame and the side rod of the bottom support. The two connecting rods are symmetrically arranged, and the support rod is located at the front end of the side rod.

[0012] Furthermore, each side rod is slidably fitted onto the two sides of the bottom of the main bed frame. The two sides of the bottom of the main bed frame are provided with sliding grooves, and the two side rods of the bottom support extend outward to form a sliding joint that can slide in the sliding groove.

[0013] Furthermore, the slide groove forms a downward-facing groove, and the sliding joint includes a connecting section extending outward from the rear end of the side rod. The connecting section is provided with a sliding piece that can be limited to sliding in the groove, and the front end of the slide groove is provided with a stop part to prevent the sliding piece from moving forward.

[0014] Furthermore, the bottom of the bottom support is provided with at least a pair of pulleys, and the bottom support includes a crossbar between the front ends of the two side rods, with pulleys provided on the side rods or crossbar.

[0015] Furthermore, the main bed frame includes multiple bed beams connecting the outer and inner bed posts, and the upper bed frame of the sub-bed frame includes the bed posts of the front, rear, and two sides forming the bed frame. Multiple bed beams are provided between the bed posts of the front and rear sides, and the length and width of the sub-bed frame are smaller than those of the main bed frame.

[0016] With the above structure, the push-pull bed of the present invention has the following advantages:

[0017] 1. The secondary bed frame is directly positioned after being pushed out, and the secondary bed frame and the main bed frame form a support surface of the same height, overcoming the disadvantage of the height difference between the main bed frame and the pull-out bed frame, which is uncomfortable when used as a double bed. In addition, compared with some beds in the prior art, it also eliminates the need for the secondary bed frame to be arranged in a cross position with the main bed frame, or the need to set up a separate lifting structure to overcome the height difference caused by the secondary bed frame. The secondary bed frame of this invention can directly form an extended bed surface to meet different usage needs.

[0018] 2. The overall structure of the bed frame is simple. When the auxiliary bed frame is pulled out, the support rods can be easily switched to the support height mode. The upper bed frame can be supported on the support rods, and the inner end of the upper bed frame can directly abut against the main bed frame. When the auxiliary bed frame is stored under the bed, the upper bed frame is lowered, and the support rods are switched to the folding height mode so that it can be easily stored under the main bed frame. This satisfies the need for support for the auxiliary bed frame and solves the problem of obstacles during storage.

[0019] 3. When it needs to be expanded into a double bed, simply push the secondary bed frame out from the bottom of the main bed frame and position it. To store the secondary bed frame, simply fold the upper bed frame down and push it into the bottom of the main bed frame. The manual operation is simple, quick, and easy to do. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention (with the secondary bed frame folded up).

[0021] Figure 2 This is a schematic diagram of the sliding structure of the auxiliary bed frame in this invention;

[0022] Figures 3 to 5 This is a schematic diagram of the process of the auxiliary bed frame being pushed out and the upper bed frame being lifted in this invention;

[0023] Figure 3A for Figure 3 A magnified view of a section at point A in the middle;

[0024] Figure 4A for Figure 4 A magnified view of a section at point B in the middle;

[0025] Figure 5A for Figure 5 A magnified view of a section at point C;

[0026] Figures 6 to 8 This is a structural schematic diagram of the positioning process of the upper bed frame of the auxiliary bed frame in this invention;

[0027] Figure 6A for Figure 6 A magnified view of a section at point D;

[0028] Figure 7A for Figure 7 A magnified view of a section at point E in the middle;

[0029] Figure 8A for Figure 8 A magnified view of a section at point F in the middle;

[0030] Figures 9 to 14 This is a schematic diagram of the process of folding up the auxiliary bed frame in this invention;

[0031] Figure 9A for Figure 9 A magnified view of a section at point G in the middle;

[0032] Figure 10A for Figure 10 A magnified view of a section at point H in the middle;

[0033] Figure 11A for Figure 11 A magnified view of a section at point I;

[0034] Figure 12A for Figure 12 A magnified view of a section at point J;

[0035] Figure 13A for Figure 13 A magnified view of a section at point K;

[0036] Figure 15 This is an exploded view of the support rod structure in this invention;

[0037] Figure 16 This is a schematic diagram of the sliding groove in the bottom of the main bed frame in this invention;

[0038] Figure 17 , Figure 18 This is a schematic diagram of the structure of the sliding joint of the side rod in the bottom bracket of the present invention and the sliding groove. Detailed Implementation

[0039] To further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0040] Combination Figures 1 to 4As shown, this invention discloses a pull-out bed, including a main bed frame 1 and a secondary bed frame 2 that can be movably pulled out from the bottom of the main bed frame. The secondary bed frame 2 includes an upper bed frame 22 connected to a bottom support 21. In this embodiment, the main bed frame 1 may have multiple bed beams 13 connected between the bed rods including the outer side 11 and the inner side 12 to form a square bed frame. Bed legs 14 may also be provided at the four corners of the bed frame, with the bed legs 14 located at both ends of the outer side 11. The upper bed frame 22 of the secondary bed frame 2 includes the bed rods including the front side 221, the rear side 222, and the two side sides 223, which enclose the bed frame. Multiple bed beams 224 are provided between the front side 221 and the rear side 222. In this example, the bottom support 21 includes two side rods 211, and a crossbar 212 may also be provided between the front ends of the two side rods 211. To facilitate the unfolding and folding of the upper bed frame 22, an inclined connecting rod 23 can be pivotally connected between each side 223 of the upper bed frame 22 and the side rod 211 of the bottom support. Through the connecting rod 23, the upper bed frame 22 can be raised above the bottom support 21 or folded down against the bottom support 21. The two connecting rods 23 are symmetrically arranged, and at least one reinforcing rod 231 can be connected between them. In this embodiment, two reinforcing rods 231 are provided to enhance the supporting and stabilizing effect of the two connecting rods 23. Simultaneously, each side rod 211 of the bottom support 21 is slidably engaged with the two sides of the bottom of the main bed frame 1. The length and width of the secondary bed frame 2 are smaller than the length and width of the main bed frame 1, allowing the bottom support 21, along with the upper bed frame 22, to slide outwards from the bottom of the main bed frame 1.

[0041] like Figures 5 to 8 As shown, in this invention, at least two height-adjustable support rods 24 are provided on the bottom support 21. The support rods 24 can be switched upwards to a supporting height when supporting the upper bed frame 21, and downwards to a folding height when the secondary bed frame 2 needs to be folded up, positioned below the main bed frame 1, thus facilitating the overall folding of the secondary bed frame 2. When the upper bed frame 22 is to be added, it can slide outwards from the bottom of the main bed frame 1 from the bottom support 21 and then be raised and placed above the bottom support 21. The front side 221 or both side sides 223 of the upper bed frame 22 can be precisely supported on the support rods 24 at the supporting height. In this embodiment, the side sides 223 of the upper bed frame 22 are supported on the support rods 24, which are located at the front end of the side rods 211. The support rods 24 can serve as the front support legs of the upper bed frame 22. Meanwhile, after the upper bed frame 22 is raised and positioned, its rear side 222 can abut against the outer side 11 of the main bed frame 1. At least one support piece 25 protrudes from the rear side 222 of the upper bed frame 22, which can support the outer side 11 of the main bed frame 1. Through the support piece 25, the inner side of the upper bed frame 22 can be supported and positioned on the main bed frame. Figure 6 and Figure 7As shown. In this embodiment, two support plates 25 protrude from the rear side 22 of the upper bed frame 22. The two support plates 25 are located on both sides of the rear side 222 of the upper bed frame 22. Of course, multiple support plates 25 can also be provided on the rear side 222 to provide more stable support for the rear side of the upper bed frame. Figure 8 As shown, the front of the upper bed frame 22 is supported by the support rod 24, and the rear is supported by the support plate 25. This allows the upper bed frame 22 of the auxiliary bed frame 2 to form a support surface of the same height as the main bed frame 1, thereby expanding the main bed frame and allowing the bed surface to be used as a double bed instead of a single bed.

[0042] For the support rod 24, the folded height of the support rod is lower than the supporting height. In this embodiment, the upper end of the support rod 24 forms a support section 241 that can be folded upwards for support or folded downwards. When the support section 241 is folded upwards, the support rod 24 forms the supporting height; when the support section 241 is folded downwards, it forms the folded height. The folded height of the support rod 24 after the support section 241 is folded downwards is lower than the height of the outer side 11 of the main bed frame 1. After the support section 241 is folded downwards, the support rod 24 can be smoothly pushed under the main bed frame 1. Figure 14 and Figure 1 As shown. Combined with Figure 3A , Figure 8A , Figure 12A , Figure 13A and Figure 15 As shown, in this embodiment, the support rod 24 includes a support section 241 movably connected above a support foot 240. The support section 241 is rotatably connected to the upper end of the support foot 240 via a connecting part 242. The support section 241 can be supported on the upper end of the support foot 240 after the connecting part 242 is flipped upwards (e.g., ...). Figure 8AAs shown, a baffle plate can extend upward from the front or outer side of the support section 241 to stop the front side 221 or both sides 223 of the upper bed frame 22. In this embodiment, the support rod 24 at the front end of the side rod 211 of the bottom bracket 21 is used to support the side 223 of the upper bed frame 22. A baffle plate 2411 extends upward from the outer side of the support section 241. Through the baffle plate 2411, the two sides 223 of the upper bed frame 22 can be stopped to prevent slippage or shaking, making the upper bed frame 22 more stable when supported. In this embodiment, the height of the support leg 240 is lower than the height of the outer side 11 of the main bed frame 1. A hole 2421 is longitudinally provided in the connecting part 242. Two oppositely arranged through holes 2401 are provided in the upper end of the support leg 240. A pivot shaft 243 passes through the two through holes 2401 and the through hole 2421 to pivotally connect the connecting part 242 to the upper end of the support leg 240. Furthermore, on the two opposite sides of the support leg 240 without the perforation 2401, one side forms a stop surface 2402, and the other side forms a notch surface 2403 for the connecting part to be folded out, so that the connecting part 242 can only be folded in one direction. An arc-shaped chamfer can be formed on the side of the stop surface 2402 facing the connecting part 242 to facilitate rotation of the connecting part 242. In the support rod 24, a foldable support section 241 is provided. The support section 241 can be folded up when the sub-bed frame is pushed out, serving as support for the outside of the upper bed frame 22, at which point the support height is switched. When the sub-bed frame 2 needs to be folded up, the support section 241 is folded down when the upper bed frame 22 is folded down, lowering the height of the support rod 24 after folding, at which point the folded height is switched, facilitating the storage of the sub-bed frame 2. It should be noted that for the structure that enables the support rod 24 to have an adjustable height, the way the support foot 240 and the support section 241 are connected is not limited to this. As long as the support section 241 can be supported on the support foot 240 and can also be folded up to reduce the height when folded, it is acceptable. For example, the support section and the support foot can also be connected by a telescopic sleeve or other movable connection methods, etc., and are not limited to this.

[0043] Furthermore, to ensure smoother sliding of the secondary bed frame 2 relative to the main bed frame 1, sliding grooves are provided on both sides of the bottom of the main bed frame 1, in conjunction with... Figure 2 and Figures 16 to 18As shown, a side connecting rod 15 can be provided between the two bed legs 14 on both sides of the main bed frame 1. The side connecting rod 15 is provided with a sliding groove 16. The two side rods 211 of the bottom support 21 extend outward to form a sliding joint that can slide in the sliding groove 16. In this embodiment, the sliding groove 16 can be formed by providing a U-shaped strip with a downward opening on the inner side of the side connecting rod 15. At the same time, the sliding joint can include a connecting section 213 extending outward from the rear end of the side rod 211. A sliding piece 214 that can be limited to slide in the strip groove is provided on the connecting section 213. The sliding piece 214 can be formed by forming an upward opening U-shaped piece on the outer side of the connecting section 213. One side plate of the U-shaped piece can be inserted into the sliding groove 16 for relative movement. The side rod 211 inside the connecting section 213 can be extended from the bottom of the main bed frame 1. A stop part 161 can also be provided at the front end of the slide groove 16 to prevent the sliding piece 214 from moving forward further, thus preventing the side rod 211 from being excessively stretched out of the bed bottom of the main bed frame. To facilitate the pushing and pulling of the bottom support 21, at least a pair of pulleys 26 are provided at the bottom of the bottom support. The pulleys 26 can be provided on the side rod 211 or the crossbar 212. In this embodiment, pulleys 26 are provided on both sides of the crossbar 212, and pulleys 26 are provided at the rear end of the side rod 211 or the bottom of the connecting section 213.

[0044] With the above structure, the push-pull bed of the present invention, when in use, combines... Figures 1 to 14 As shown, the main bed frame 1 can be a single bed. When used as a single bed, the secondary bed frame 2 is tucked under the main bed frame 1, as shown. Figure 1 As shown. When it is necessary to expand the bed frame into a double bed or king-size bed, combine with Figures 2 to 8 As shown, the auxiliary bed frame 2 can be pushed out from the bottom of the main bed frame 1 by first utilizing the sliding connection between the side rod 211 of the bottom support 21 and the sliding groove 16 at the bottom of the main bed frame 1. Then, the upper bed frame 22 of the auxiliary bed frame 2 is raised above the bottom support 21 by the action of the connecting rod 23. At the same time, the movable connecting support section 241 on the support rod 24 can be folded upward and stood up. The side 223 of the upper bed frame 22 can be supported on the support section 241, and the support piece 25 provided on the inner side of the upper bed frame 22 can be supported on the outer side 11 of the main bed frame 1. The front side of the upper bed frame 22 is supported by the support rod 24, and the rear side is supported by the support piece 25. This allows the upper bed frame 22 of the auxiliary bed frame 2 to form a support surface of the same height as the main bed frame 1, thereby expanding the main bed frame and changing the bed surface from a single bed to a double bed. Conversely, when it is necessary to fold up the secondary bed frame 2, combined with... Figures 9 to 14As shown, after lifting the outer end of the upper bed frame 22 upwards and outwards from the support rod 24, the support piece 25 disengages from the outer side 11 of the main bed frame 1. Then, the upper bed frame 22 is moved downwards until it rests against the bottom support 21. Next, the support section 241 in the support rod 24 is folded downwards to reduce the height (the support section 241 is folded upwards onto the support leg 240 to form support when the upper bed frame 22 is lifted, and folded downwards after the upper bed frame 22 is retracted). Finally, the entire secondary bed frame 2 is smoothly pushed inwards to the bottom of the main bed frame 1. Figure 1 As shown, the auxiliary bed frame 2 is now stowed. This invention's pull-out bed includes a main bed frame and a movable, pull-out auxiliary bed frame. The overall structure of the bed frame is simple, and the bed can be extended into a large bed according to usage needs, making it convenient to operate and use.

[0045] The above embodiments and figures are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A pull-out bed, comprising a main bed frame and a secondary bed frame that is movably pulled out from the bottom of the main bed frame, characterized in that: The secondary bed frame includes an upper bed frame connected to a bottom support. The bottom support has at least two adjustable height support rods. When supporting the upper bed frame, the support rods switch to the supporting height. When the secondary bed frame is folded up, the support rods switch to the folded height and are located below the main bed frame. After the bottom support slides outward from the bottom of the main bed frame, the upper bed frame is raised and placed above the bottom support. The front or both sides of the upper bed frame are supported on the support rods. At least one support piece is also provided on the rear side of the upper bed frame to support the outer side of the main bed frame. The upper bed frame and the main bed frame form a support surface with the same height.

2. A push-pull bed as described in claim 1, characterized in that: The folded height of the support rod is lower than the support height. The upper end of the support rod forms a support section. The support height is formed when the support section is folded upwards and upright, and the folded height is formed after the support section is folded downwards.

3. A push-pull bed as described in claim 2, characterized in that: The support rod includes a support section that is movably connected above a support foot. The support section is rotatably connected to the upper end of the support foot via a connecting part. After the connecting part is flipped up, the support section is supported on the upper end of the support foot. A baffle plate extends upward from the front or outer side of the support section to stop the front or both sides of the upper bed frame.

4. A push-pull bed as described in claim 3, characterized in that: The height of the support leg is lower than the height of the outer side of the main bed frame. A hole is provided longitudinally in the connecting part. Two oppositely arranged through holes are provided at the upper end of the support leg. A pivot shaft passes through the two through holes and the slot. One of the two opposite sides of the support leg without through holes forms a stop surface, and the other side forms a notch surface for the connecting part to be folded out. An arc-shaped chamfer is formed on the side of the stop surface facing the connecting part.

5. A push-pull bed as described in claim 1, characterized in that: At least two support plates protrude from the rear side of the upper bed frame, with the two support plates located on both sides of the rear side of the upper bed frame.

6. A push-pull bed as described in claim 1, characterized in that: The bottom support includes two side rods. The two sides of the upper bed frame are pivotally connected to the side rods of the bottom support with an inclined connecting rod. The two connecting rods are symmetrically arranged, and the support rod is located at the front end of the side rod.

7. A push-pull bed as described in claim 6, characterized in that: Each side rod is slidably fitted onto the two sides of the bottom of the main bed frame. The bottom of the main bed frame is provided with sliding grooves on both sides. The two side rods of the bottom support extend outward to form a sliding joint that slides in the sliding groove.

8. A push-pull bed as described in claim 7, characterized in that: The slide groove forms a downward-facing groove. The sliding joint includes a connecting section extending outward from the rear end of the side rod. A sliding piece is provided on the connecting section to limit the sliding movement in the groove. A stop part is provided at the front end of the slide groove to prevent the sliding piece from moving forward.

9. A push-pull bed as described in claim 6 or 7, characterized in that: The bottom of the base bracket is provided with at least one pair of pulleys, and the base bracket includes a crossbar between the front ends of the two side rods, with pulleys provided on the side rods or crossbar.

10. A push-pull bed as described in claim 1, characterized in that: The main bed frame includes multiple bed beams connecting the outer and inner bed posts. The upper bed frame of the sub-bed frame includes the bed posts on the front, back, and two sides, which together form the bed frame. Multiple bed beams are provided between the bed posts on the front and back sides. The length and width of the sub-bed frame are smaller than those of the main bed frame.

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