Grid pull-out sofa bed

Abstract

The utility model belongs to the technical field of sofa bed, specifically relates to grid pull-out type sofa bed, aiming at the deficiency that the hard support frame of existing pull-out type sofa bed is difficult to be flush, the utility model uses the following technical scheme: grid pull-out type sofa bed includes: sofa frame, seat frame, nested frame, can be opposite seat frame activity, seat frame includes a plurality of fixed support plate parallel to pull-out direction, nested frame includes a plurality of movable support plate parallel to pull-out direction, fixed support plate and movable support plate are staggered distribution, and the upper surface of all fixed support plate and all movable support plate is flush, seat frame still includes the outer stop piece of fixed support plate below, and nested frame has the inner connecting piece of the inboard of outer stop piece. The utility model discloses grid pull-out type sofa bed, and fixed support plate and movable support plate are staggered distribution, and the upper surface of fixed support plate and movable support plate is flush, so that after pulling out seat frame, fixed support plate and movable support plate still can keep flush.

Description

Technical Field

[0001] This utility model belongs to the field of sofa bed technology, specifically relating to a grid pull-out sofa bed. Background Technology

[0002] Existing pull-out sofa beds, when switching from sofa mode to bed mode, often fail to achieve a perfectly level height between the fixed frame and the movable frame (collectively referred to as the rigid support frame). Even if the surface upholstery is made flush, a person lying on it may still feel this, affecting comfort. Utility Model Content

[0003] This invention addresses the shortcoming of existing pull-out sofa beds where the rigid support frame is difficult to make flush. It provides a grid-style pull-out sofa bed with a grid-shaped rigid support frame, thereby better ensuring the surface is flush.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a grid pull-out sofa bed, which includes: Sofa frame, including left and right armrests and backrest; Seat frame; Nested frames can move relative to the frame; The seat frame includes multiple fixed support plates parallel to the pull-out direction, and the nested frame includes multiple movable support plates parallel to the pull-out direction. The fixed support plates and movable support plates are staggered, and the upper surfaces of all fixed support plates and all movable support plates are flush. The seat frame also includes an outer stop located below the fixed support plate, and the nested frame has an inner connector located inside the outer stop. The outer end of the fixed support plate is fixedly connected to the outer stop, and the inner end of the movable support plate is fixedly connected to the inner connector.

[0005] This utility model discloses a grid pull-out sofa bed, comprising a seat frame and a nested frame that moves relative to the seat frame. The seat frame includes multiple fixed support plates, and the nested frame includes multiple movable support plates. The fixed and movable support plates are staggered, and their upper surfaces are flush, so that the fixed and movable support plates remain flush after the seat frame is pulled out. The seat frame includes an outer stop, and the nested frame includes an inner connector. The outer stop restricts the inner connector to prevent the nested frame from separating from the seat frame.

[0006] As an improvement, a fixed support plate and a movable support plate are alternately distributed.

[0007] As an improvement, there is a gap between adjacent fixed support plates and movable support plates.

[0008] As an improvement, the movable support plate and the inner connector are connected by a first fastener, the inner connector has an opening, and the first fastener has a deformable part that is inserted into the hole of the inner connector; The fixed support plate and the outer stop are connected by the first fastener. The outer stop has a hole, and the deformable part of the first fastener is inserted into the hole of the outer stop.

[0009] As an improvement, the seat frame also includes an inner stop at the inner end, the fixed support plate and the inner stop are connected by a second fastener, the inner stop has an opening, and the second fastener has a deformable part that is inserted into the hole of the inner stop; The nested frame also includes an outer connector located at the outer end. The movable support plate and the outer connector are connected by a second fastener. The outer connector has a hole, and the deformable part of the second fastener is inserted into the hole of the outer connector.

[0010] As an improvement, the first fastener also includes an outer sleeve, the deformable part of the first fastener is located on the outer sleeve, the outer end of the fixed support plate is inserted into the outer sleeve, and the inner end of the movable support plate is inserted into the outer sleeve. The second fastener also includes an outer part and an extension part. The height of the extension part is less than that of the outer part, and the deformable part of the second fastener is located on the extension part.

[0011] As an improvement, there is a gap in the height direction between the movable support plate and the outer stop; the left and right armrests are equipped with fixed support members that support the nested frame.

[0012] As an improvement, the lattice pull-out sofa bed also includes a padding layer above the seat frame, with a wear-resistant layer between the seat frame and the padding layer; and / or, The seat frame is fixedly connected to the sofa frame.

[0013] As an improvement, the grid pull-out sofa bed also includes a storage box with wheels at the bottom and a supporting nested frame.

[0014] As an improvement, the nested frame also includes a decorative panel at the outer end and guide members at both ends perpendicular to the pull-out direction, the guide members being located below the outer stop; and / or, The sofa frame also includes a reinforcing rod at the outer end, with a clearance groove formed at the roller corresponding to the reinforcing rod for the roller to pass through; a limiting block is provided in the clearance groove of the reinforcing rod; and / or, An anti-detachment structure is formed between the storage box and the nested box to prevent the storage box from falling out.

[0015] As an improvement, the grid pull-out sofa bed also includes multiple support components that support the nested frame, including casters and support columns.

[0016] The beneficial effects of this utility model of a grid pull-out sofa bed are as follows: The sofa bed includes a seat frame and a nested frame that moves relative to the seat frame. The seat frame includes multiple fixed support plates, and the nested frame includes multiple movable support plates. The fixed support plates and movable support plates are staggered, and their upper surfaces are flush, so that the fixed support plates and movable support plates remain flush after the seat frame is pulled out. The seat frame includes an outer stop, and the nested frame includes an inner connector. The outer stop prevents the nested frame from separating from the seat frame by restricting the inner connector. Attached Figure Description

[0017] Figure 1 This is an exploded view (sofa form) of the grid pull-out sofa bed according to Embodiment 1 of this utility model.

[0018] Figure 2 This is an exploded view (bed shape) of the grid pull-out sofa bed according to Embodiment 1 of this utility model.

[0019] Figure 3 This is an exploded view of the structure of the grid pull-out sofa bed of the present invention (the storage box is pulled out when the bed is in the form of a pull-down panel).

[0020] Figure 4 This is a schematic diagram of the structure of the first and second fasteners of the grid pull-out sofa bed according to Embodiment 1 of this utility model.

[0021] Figure 5 yes Figure 4 A magnified view of the first fastener in the middle.

[0022] Figure 6 yes Figure 4 A magnified view of the second fastener in the middle.

[0023] Figure 7 yes Figure 1 A magnified view of a section of the reinforcing rod.

[0024] Figure 8 This is an exploded view (bed shape) of the grid pull-out sofa bed according to Embodiment 2 of this utility model.

[0025] Figure 9 This is a partial structural schematic diagram of the grid pull-out sofa bed according to Embodiment 2 of this utility model.

[0026] Figure 10 This is a partial structural schematic diagram of the grid pull-out sofa bed of Embodiment 3 of this utility model.

[0027] In the diagram, 1 is the sofa frame; 11 is the reinforcing rod; 111 is the clearance groove; and 12 is the limiting block. 2. Seat frame; 21. Fixed support plate; 22. Outer stop; 23. Inner stop; 24. First fastener; 241. Outer sleeve; 242. Deformation part; 2421. Base column; 2422. Limiting body; 2423. Deformation opening; 25. Second fastener; 251. Extension part; 3. Nested frame; 31. Movable support plate; 32. Inner connector; 33. Outer connector; 34. Decorative panel; 35. Guide component; 4. Storage box; 41. Load-bearing plate; 5. Rollers; 6. Fixed support components; 7. Support components. Detailed Implementation

[0028] The technical solutions of the embodiments of this utility model are explained and described below. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this utility model.

[0029] See Figures 1 to 10 The grid pull-out sofa bed of this utility model embodiment includes: Sofa frame, including left and right armrests and backrest; The seat frame is fixedly connected to the sofa frame; Nested frames can move relative to the frame; The seat frame includes multiple fixed support plates parallel to the pull-out direction, and the nested frame includes multiple movable support plates parallel to the pull-out direction. The fixed support plates and movable support plates are staggered, and the upper surfaces of all fixed support plates and all movable support plates are flush. The seat frame also includes an outer stop located below the fixed support plate, and the nested frame has an inner connector located inside the outer stop. The outer end of the fixed support plate is fixedly connected to the outer stop, and the inner end of the movable support plate is fixedly connected to the inner connector.

[0030] This utility model discloses a grid pull-out sofa bed, comprising a seat frame and a nested frame that moves relative to the seat frame. The seat frame includes multiple fixed support plates, and the nested frame includes multiple movable support plates. The fixed and movable support plates are staggered, and their upper surfaces are flush, so that the fixed and movable support plates remain flush after the seat frame is pulled out. The seat frame includes an outer stop, and the nested frame includes an inner connector. The outer stop restricts the inner connector to prevent the nested frame from separating from the seat frame.

[0031] Example 1 See Figures 1 to 7 The grid pull-out sofa bed of this utility model embodiment one includes: Sofa frame 1, including left and right armrests and backrest; Seat frame 2 is fixedly connected to sofa frame 1; Nested frame 3 can move relative to frame 2; The seat frame 2 includes multiple fixed support plates 21 parallel to the pull-out direction, and the nested frame 3 includes multiple movable support plates 31 parallel to the pull-out direction. The fixed support plates 21 and movable support plates 31 are staggered, and the upper surfaces of all fixed support plates 21 and all movable support plates 31 are flush. The seat frame 2 also includes an outer stop 22 located below the fixed support plate 21, and the nested frame 3 has an inner connector 32 located inside the outer stop 22. The outer end of the fixed support plate 21 is fixedly connected to the outer stop 22, and the inner end of the movable support plate 31 is fixedly connected to the inner connector 32.

[0032] In this embodiment, a fixed support plate 21 and a movable support plate 31 are alternately distributed. In other embodiments, multiple fixed support plates 21 and multiple movable support plates 31 may be alternately distributed, or one fixed support plate 21 and multiple movable support plates 31 may be alternately distributed, or multiple fixed support plates 21 and one movable support plate 31 may be alternately distributed.

[0033] In this embodiment, there is a gap between adjacent fixed support plates 21 and movable support plates 31. Because of this gap, when the nested frame 3 is pulled out, there is no contact between the sides of the movable support plate 31 and the fixed support plate 21, thus preventing friction and protecting the adjacent sides of the movable support plate 31 and the fixed support plate 21.

[0034] In this embodiment, the movable support plate 31 and the inner connector 32 are connected by the first fastener 24. The inner connector 32 has a hole, and the first fastener 24 has a deformable part 242 that is inserted into the hole of the inner connector 32. The fixed support plate 21 and the outer stop 22 are connected by the first fastener 24. The outer stop 22 has a hole, and the deformable part 242 of the first fastener 24 is inserted into the hole of the outer stop 22.

[0035] In this embodiment, the seat frame 2 also includes an inner stop 23 at the inner end. The fixed support plate 21 and the inner stop 23 are connected by a second fastener 25. The inner stop 23 has a hole, and the second fastener 25 has a deformable part 242 that is inserted into the hole of the inner stop 23. The nested frame 3 also includes an outer connector 33 located at the outer end. The movable support plate 31 and the outer connector 33 are connected by a second fastener 25. The outer connector 33 has a hole, and the deformable part 242 of the second fastener 25 is inserted into the hole of the outer connector 33. The fastener connection facilitates disassembly.

[0036] In other embodiments, the movable support plate 31 and the inner connector 32 and the outer connector 33 can also be connected by screws; the fixed support plate 21 and the outer stop 22 and the inner stop 23 can also be connected by screws.

[0037] In this embodiment, the seat frame 2 is fixedly connected to the sofa frame 1. The two ends of the outer stop 22 of the seat frame are fixed to the left and right armrests, and the two ends of the inner stop 23 are fixed to the left and right armrests or the middle part of the inner stop 23 is fixed to the backrest.

[0038] In other embodiments, the seat frame 2 includes a quadrilateral frame with an outer stop 22 and an inner stop 23 on its front and rear sides, respectively. Square steel tubes on both sides connect the two ends of the outer stop 22 and the inner stop 23 located on the same side. Slide rails are provided on the armrests, and pulleys are provided at the corners of the quadrilateral frame. The seat frame 2 can also be pulled out relative to the sofa frame 1 to increase the bed surface area in the sofa bed mode.

[0039] In this embodiment, the first fastener 24 also includes an outer sleeve 241, the deformable part 242 of the first fastener 24 is located on the outer sleeve 241, the outer end of the fixed support plate 21 is inserted into the outer sleeve 241, and the inner end of the movable support plate 31 is inserted into the outer sleeve 241. The second fastener 25 also includes an outer portion 241 and an extension portion 251. The height of the extension portion 251 is less than that of the outer portion 241, and the deformable portion 242 of the second fastener 25 is located on the extension portion 251.

[0040] In this embodiment, the first fastener 24 and the second fastener 25 adopt the same deformable part 242. The deformable part 242 includes a base post 2421 fixedly connected to the outer sleeve 241 and a limiting body 2422 connected to the base post 2421. The base post 2421 and the limiting body 2422 have a deformable opening 2423 in the middle. The limiting body 2422 reduces its volume by narrowing the deformable opening 2423. After the corresponding openings of the inner connector 32, outer connector 33, outer stop 22 and inner stop 23 are inserted, the deformable opening 2423 is restored to prevent the deformable part 242 from disengaging from the inner connector 32, outer connector 33, outer stop 22 and inner stop 23.

[0041] In this embodiment, a cushion is provided above the seat frame 2, and a wear-resistant layer (not shown in the figure) is provided between the seat frame 2 and the cushion. When the nested frame 3 is pulled out, the movable support plate 31 will not directly rub against the lower surface of the cushion, thus avoiding damage to the cushion. The wear-resistant layer is usually fixed to the left and right armrests. The cushion is used for sitting when in sofa mode. The cushion is foldable and can be unfolded into a bed surface when in sofa bed mode. The wear-resistant layer is relatively thin (1mm), making it difficult for the human body to perceive the height difference. Similarly, the thickness of the outer portion 241 of the first fastener 24 and the second fastener 25 above the insertion hole is also relatively small, making it difficult for the human body to perceive the height difference as well.

[0042] In this embodiment, the grid pull-out sofa bed also includes a storage box 4, with casters 5 at the bottom, and the storage box 4 supports the nesting frame 3. (Reference) Figure 10 The external connector 33 overlaps the two side panels that make up the side portion of the storage box 4. In other embodiments, the cushion is divided into a seat cushion and a reclining cushion. The seat cushion is placed above the seat frame 2, and the reclining cushion is placed in the storage box 4. In the sofa state, the seat cushion supports the human body. In the sofa bed state, the reclining cushion is taken out of the storage box 4 and placed above the nesting frame 3. The seat cushion and reclining cushion are joined together in a front-to-back direction to form a bed surface. The casters 5 are directional casters rather than omnidirectional casters.

[0043] In this embodiment, the nested frame 3 also includes an outer decorative panel 34 and guide members 35 perpendicular to both ends of the pull-out direction. The guide members 35 are located below the outer stop member 22. The guide members 35 guide the storage box 4. The outer connecting member 33 and the inner connecting member 32 are connected at both ends of their length direction by the guide members 35, forming a stable quadrilateral frame and improving the resistance to deformation under stress of the nested frame 3. In the vertical projection, the two guide members 35 are located outside the storage box 4, and by setting the height dimension, the two guide members 35 can effectively abut against the upper edges of both sides of the storage box 4 to limit and guide the sliding direction of the storage box 4. The edge of the outer panel of the storage box 4 extends to the side armrests. By abutting against the outer end of the guide member 35, when the nested frame is pulled, the guide member 35 abuts against the outer panel of the storage box 4 and pulls the storage box 4 out together. When the storage box 4 is pushed inward, the end of the guide member 35 is pushed and thus the nested frame 3 slides inward.

[0044] In this embodiment, the sofa frame 1 also includes an outer reinforcing rod 11, with a clearance groove 111 formed at the roller 5 corresponding to the reinforcing rod 11. A limiting block 12 is provided in the clearance groove 111 of the reinforcing rod 11. The two ends of the reinforcing rod 11 are connected to the left and right armrests. The reinforcing rod 11 is bent to form the clearance groove 111. The height of the limiting block 12 is less than the depth of the clearance groove 111. The width of the limiting block 12 is less than the inner and outer width of the clearance groove 111. When used in sofa form, the roller 5 is located in the clearance groove 111 and inside the limiting block 12. By setting the structural dimensions, when the sofa bed is used in sofa form, the two outer rollers 5 are located inside the limiting block 12, and the two outer rollers 5 are blocked and limited by the limiting block 12 to prevent the rollers 5 from slipping out due to slight accidental impact force on the smooth ground. When used in bed form, the two inner rollers 5 are also located outside the limiting block 12 (pulled out).

[0045] In other embodiments, the structural dimensions can be set so that when used as a bed, the two inner rollers 5 are located inside the limiting block 12, ensuring that the storage box 4 requires a certain pulling force to pass over the limiting block 12 before it can be pulled out.

[0046] In this embodiment, the storage box 4 has an anti-detachment structure. A protrusion (not shown in the figure) is provided on the inner side of the storage box 4. Multiple protrusions are provided on the force-bearing plate 41 of the inner side panel of the storage box 4, ensuring that when the storage box 4 is fully extended, the protrusions abut against the outer connecting piece 33. By providing the anti-detachment structure, the storage box 4 is prevented from completely detaching from the nesting frame 3, thus avoiding the loss of support from the side panels of the storage box 4 by the outer connecting piece 33 at the front end of the nesting frame 3.

[0047] The beneficial effects of the grid pull-out sofa bed in Embodiment 1 of this utility model are as follows: The sofa bed includes a seat frame 2 fixedly connected to the sofa frame 1 and a nested frame 3 movable relative to the seat frame 2. The seat frame 2 includes multiple fixed support plates 21, and the nested frame 3 includes multiple movable support plates 31. The fixed support plates 21 and the movable support plates 31 are staggered, and their upper surfaces are flush, so that after the seat frame 2 is pulled out, the fixed support plates 21 and the movable support plates 31 can still remain flush; The frame 2 includes an outer stop 22, and the nested frame 3 includes an inner connector 32. The outer stop 22 prevents the nested frame 3 from separating from the seat frame 2 by restricting the inner connector 32. A storage box 4 is provided. An anti-detachment structure is provided for the storage box 4. A reinforcing rod 11 is provided to improve the structural strength of the sofa frame 1. An avoidance groove 111 is provided on the reinforcing rod 11, making it easier to pull out the nested frame 3 and the storage box 4. A limiting block 12 is provided in the avoidance groove 111 of the reinforcing rod 11 to restrict the position of the rollers 5 in the sofa form.

[0048] Example 2 See Figure 8 and Figure 9 In this embodiment, there is a height gap between the movable support plate 31 and the outer stop 22; fixed support members 6 for supporting the nested frame 3 are provided on the left and right armrests. The height gap between the movable support plate 31 and the outer stop 22 prevents the movable support plate 31 from being separated from the inner connecting member 32 due to force during the pulling process. At this time, the movable support plate 31 is not supported by the outer stop 22, therefore, the fixed support member 6 is provided to support the inner connecting member 32 of the nested frame 3. The fixed support member 6 is L-shaped.

[0049] In this embodiment, the outer connector 33 and the inner connector 32 are connected at both ends below the guide 35 along their length direction. The fixed support 6 supports the rear end of the guide 35, and the guide 35 supports the inner connector 32.

[0050] See Figure 9 In this embodiment, the upper ends of the outer stop 22 and the inner connector 32 are flush. There is a height gap S between the movable support plate 31 and the outer stop 22, and the size of the gap S is the thickness of the bottom wall of the hole of the outer sleeve 241 of the first fastener 24.

[0051] Example 3 See Figure 10In this embodiment, the upper ends of the outer stop 22 and the inner connecting member 32 are flush. A height gap S exists between the movable support plate 31 and the outer stop 22. The grid pull-out sofa bed also includes multiple support components 7 supporting the nested frame 3. Each support component 7 includes rollers 5 and support columns. There are four sets of support components 7, located at the four corners of the nested frame 3. Support components 7 are used instead of storage frames with rollers 5.

[0052] In this embodiment, the outer connector 33 of the nested frame 3 is provided with a decorative plate 34, and the height of the decorative plate 34 is greater than that in the first embodiment.

[0053] The above description is merely a specific embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the above specific embodiments. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A grid-style pull-out sofa bed, characterized in that: Grid pull-out sofa beds include: Sofa frame (1), including left and right armrests and backrest; Seat frame (2); The nested frame (3) can move relative to the frame (2); Among them, the seat frame (2) includes multiple fixed support plates (21) parallel to the pull-out direction, and the nested frame (3) includes multiple movable support plates (31) parallel to the pull-out direction. The fixed support plates (21) and movable support plates (31) are staggered, and the upper surfaces of all fixed support plates (21) and all movable support plates (31) are flush. The seat frame (2) also includes an outer stop (22) located below the fixed support plate (21), and the nested frame (3) has an inner connector (32) located inside the outer stop (22). The outer end of the fixed support plate (21) is fixedly connected to the outer stop (22), and the inner end of the movable support plate (31) is fixedly connected to the inner connector (32).

2. The grid pull-out sofa bed according to claim 1, characterized in that: A fixed support plate (21) and a movable support plate (31) are alternately distributed; there is a gap between adjacent fixed support plates (21) and movable support plates (31).

3. The grid pull-out sofa bed according to claim 1, characterized in that: The movable support plate (31) and the inner connector (32) are connected by a first fastener (24). The inner connector (32) has an opening, and the first fastener (24) has a deformable part (242) that is inserted into the hole of the inner connector (32). The fixed support plate (21) and the outer stop (22) are connected by the first fastener (24). The outer stop (22) has a hole, and the deformable part (242) of the first fastener (24) is inserted into the hole of the outer stop (22).

4. The grid pull-out sofa bed according to claim 3, characterized in that: The seat frame (2) also includes an inner stop (23) at the inner end. The fixed support plate (21) and the inner stop (23) are connected by a second fastener (25). The inner stop (23) has an opening, and the second fastener (25) has a deformable part (242) that is inserted into the hole of the inner stop (23). The nested frame (3) also includes an outer connector (33) located at the outer end. The movable support plate (31) and the outer connector (33) are connected by a second fastener (25). The outer connector (33) has a hole, and the deformable part (242) of the second fastener (25) is inserted into the hole of the outer connector (33).

5. The grid pull-out sofa bed according to claim 4, characterized in that: The first fastener (24) also includes an outer sleeve (241), the deformable part (242) of the first fastener (24) is located on the outer sleeve (241), the outer end of the fixed support plate (21) is inserted into the outer sleeve (241), and the inner end of the movable support plate (31) is inserted into the outer sleeve (241). The second fastener (25) also includes an outer part (241) and an extension part (251), the height of which is less than that of the outer part (241), and the deformable part (242) of the second fastener (25) is located on the extension part (251).

6. The grid pull-out sofa bed according to claim 4, characterized in that: There is a gap in the height direction between the movable support plate (31) and the outer stop (22); the left and right armrests are provided with fixed support members (6) for supporting the nested frame (3).

7. The grid pull-out sofa bed according to claim 1, characterized in that: The lattice pull-out sofa bed also includes a cushion layer located above the seat frame (2), with a wear-resistant layer between the seat frame (2) and the cushion layer; and / or, The seat frame (2) is fixedly connected to the sofa frame (1).

8. The grid pull-out sofa bed according to claim 1, characterized in that: The grid pull-out sofa bed also includes a storage box (4), with wheels (5) at the bottom of the storage box (4) and a supporting nested frame (3).

9. The grid pull-out sofa bed according to claim 8, characterized in that: The nested frame (3) also includes a decorative panel (34) at the outer end and guide members (35) at both ends perpendicular to the pull-out direction, the guide members (35) being located below the outer stop member (22); and / or, The sofa frame (1) also includes a reinforcing rod (11) at its outer end, the reinforcing rod (11) forming a clearance groove (111) for the roller (5) to pass through; a limiting block (12) is provided in the clearance groove (111) of the reinforcing rod (11); and / or, An anti-detachment structure is formed between the storage box and the nested box (3) to prevent the storage box from falling out.

10. The grid pull-out sofa bed according to claim 1, characterized in that: The grid pull-out sofa bed also includes multiple support components (7) that support the nested frame (3), and the support components (7) include casters (5) and support columns.

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