Drawer type sofa bed frame body

Abstract

The invention belongs to the technical field of furniture, and particularly relates to a drawer type sofa bed frame body. The drawer type sofa bed frame body structurally comprises a seat plate and an armrest plate, and further comprises a grooved backup plate unit arranged on the seat plate and the armrest plate, and a drawer unit arranged below the seat plate, and the dual-purpose movable plate unit is arranged on the grooved backup plate unit in a clamping manner and is used for clamping the drawer unit when the dual-purpose movable plate unit is erected on the drawer unit for use. The drawer type sofa bed frame body has the beneficial effects that at least the dual-purpose movable plate unit is used on the back plate unit with the groove or the drawer unit, and the back plate unit and the drawer unit have clamping and fixing effects, so that a sofa and a bed have the advantages of stable structure and difficulty in displacement in two states, and finally, the practicability and the comfort of the drawer type sofa bed frame body are remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the field of furniture technology, and in particular relates to a drawer-type sofa bed frame. Background Art

[0002] Sofa bed refers to a relatively new type of furniture product that can be switched back and forth between sofa form and bed form. Generally, the above switching methods mainly include folding type and drawer type.

[0003] The common folding sofa bed has a general principle that the bed frame structure is divided into two parts, and the two parts are hinged. When it is used as a sofa, the two hinged parts are arranged one up and one down, and when it is used as a bed, the two hinged parts are arranged one left and one right.

[0004] The common existing drawer-type sofa bed mainly includes a sofa frame, a drawer under the frame, and an extra mattress. When the drawer-type sofa bed is used as a sofa, the drawer is pushed in and folded, and the extra mattress is used as a seat cushion. When the drawer-type sofa bed is used as a bed, the drawer is pulled out and unfolded, and the extra mattress is placed on the drawer, thereby obtaining a sufficiently large bed width.

[0005] For example, the Chinese utility model patent with authorization announcement number CN221997419U and authorization announcement date 2024.11.15 discloses a drawer-type sofa bed frame, whose structure includes a sofa base frame, a first sofa cushion, a second sofa cushion, side panels, a backrest, a drawer body, a mounting frame, a mounting plate, a fixing rod, and a support fence.

[0006] The drawer-type sofa bed frame in this utility model patent has the main advantage that the mounting frame can be limited and fixed after being moved through the fixing rod to avoid displacement during use.

[0007] However, in actual use, the drawer-type sofa bed frame still has at least the following problems of insufficient practicality and comfort, which are specifically manifested as follows: First, when the first sofa cushion structure is laid on the mounting frame for use, harmful displacement in the length direction is likely to occur, affecting the user experience; Second, when the sofa bed frame is used as a bed, the backrest structure occupies a large part of the width of the bed, which greatly reduces the practicality and comfort of the bed. Summary of the invention

[0008] The present application provides a drawer-type sofa bed frame, and the technical problem to be solved is: how to improve the practicality and comfort of the drawer-type sofa bed frame when used as a bed.

[0009] The technical solution adopted by the present application to solve the above-mentioned problem is: a drawer-type sofa bed frame, which structure includes a seat plate and an armrest plate, and also includes a grooved backboard unit arranged on the seat plate and the armrest plate, a drawer unit arranged at a position below the seat plate, and a dual-purpose movable plate unit that is clamped on the grooved backboard unit and is used to clamp the drawer unit when it is mounted on the drawer unit for use.

[0010] A further preferred technical solution is that the grooved backrest unit includes a bottom plate arranged on the seat plate and the armrest plate, an inclined support plate arranged on the upper surface of the bottom plate, and an installation groove arranged on the upper surface of the inclined support plate and used to engage the dual-purpose movable plate unit.

[0011] A further preferred technical solution is that the drawer unit comprises a rectangular box body which is arranged below the seat plate and whose upper surface and inner side surface are respectively used for supporting and engaging the dual-purpose movable plate unit.

[0012] A further preferred technical solution is that the dual-purpose movable panel unit includes a main body panel and an insertion block disposed on the main body panel and used for engaging with the installation groove or the rectangular box.

[0013] A further preferred technical solution is that it also includes a vertical rod which is arranged on the lower surface of the seat plate and is used to limit the rectangular box in the sliding opening and closing direction of the rectangular box.

[0014] A further preferred technical solution is that the drawer unit also includes an inner cross bar whose two ends are respectively arranged on two end plates of the rectangular box and is used to fix the open state of the rectangular box by engaging the vertical rod together with the inner plate of the rectangular box.

[0015] A further preferred technical solution is that the drawer unit also includes a vertically rotating cover plate arranged in the rectangular box and hinged to the inner cross bar, and a protruding cross plate arranged on the inner side surface of the panel of the rectangular box and used to support the vertically rotating cover plate.

[0016] A further preferred technical solution is that the drawer unit further comprises a box closing state limiting groove which is arranged on the upper surface of the protruding horizontal plate and is used for inserting the vertical rod.

[0017] A further preferred technical solution is that the drawer unit also includes a pull-out opening arranged on the panel of the rectangular box, and a pull-down rod arranged on the protruding horizontal plate and manually pulled down through the pull-out opening to release the plug-in state of the vertical rod and the limit groove of the closed state of the box.

[0018] A further preferred technical solution is that the drawer unit further comprises an elastic rubber strip which is arranged on the inner side surface of the panel of the rectangular box and is used for arranging the protruding transverse plate.

[0019] The beneficial effects of this application include at least the following four points.

[0020] First, the dual-purpose movable board unit is used on the grooved backboard unit or the drawer unit, and has a snap-fitting and fixing effect on the latter two, so that both the sofa and the bed have the advantages of stable structure and not easy to shift, and finally significantly improves the practicality and comfort of the drawer-type sofa bed frame.

[0021] Second, when the drawer-type sofa bed frame is used as a bed, the dual-purpose movable board unit needs to be removed from the grooved backboard unit, so the former will not occupy the width direction area of ​​the bed body, which can also improve practicality and comfort.

[0022] Third, the drawer unit has a limited fixing effect when pushed in and closed, or pulled out and opened, so that it will not be accidentally closed or opened, thus improving practicality and safety.

[0023] Fourthly, the corresponding structure providing the above-mentioned limiting and fixing effect has many advantages such as highly integrated structure, overall functional linkage, and sufficient and appropriate limiting strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of this application.

[0025] Figure 2 This is a schematic diagram of the closed state of the drawer unit in this application.

[0026] Figure 3 This is a schematic diagram of the position of the vertically rotating cover plate in this application from a top view.

[0027] Figure 4 This is a schematic diagram of the open state of the drawer unit in this application.

[0028] Figure 5 This is a schematic diagram of the position of the limit slots in the closed state of the box in this application.

[0029] Figure 6 This is a structural schematic diagram of a dual-purpose movable panel unit in this application.

[0030] Figure 7 This is a schematic structural diagram of a grooved support plate unit in this application.

[0031] Figure 8 This is a schematic diagram of the position and shape of the opening for pulling out in this application.

[0032] Fig. 9This is a schematic diagram of the position of the elastic rubber strip in this application.

[0033] Fig.10 This is a schematic diagram of the usage of the inner horizontal bar engaging the vertical bar in the present application from a top view.

[0034] Fig.11 This is a structural schematic diagram of the seat plate in this application.

[0035] Fig.12 This is a schematic diagram of another shape of the mounting slot in this application.

[0036] Fig.13 This is a schematic diagram of another shape of the insertion block in this application.

[0037] In the figure, the meanings of the symbols are as follows.

[0038] Seat board, armrest board; Grooved backing plate unit, drawer unit, dual-purpose movable plate unit, vertical rod, roller 5; Bottom plate, inclined support plate, mounting slots; Rectangular box, inner horizontal bar, vertical rotating cover plate, protruding horizontal plate, box closed state limit slot, opening for pulling out, lower pull rod, elastic rubber strip; Main plate, insert block. DETAILED DESCRIPTION

[0039] The following description is merely a preferred embodiment of the present application and does not limit the scope of the present application.

[0040] like Figure 1-Figure 13 As shown, a drawer-type sofa bed frame comprises a seat plate and an armrest plate, and further comprises a grooved backboard unit arranged on the seat plate and the armrest plate, a drawer unit arranged at a position below the seat plate, and a dual-purpose movable plate unit which is clamped on the grooved backboard unit and is used to clamp the drawer unit when it is mounted on the drawer unit for use.

[0041] In this embodiment, the seat plate is fixedly connected to the two armrest plates and the grooved backing plate unit. The drawer unit is not fixedly connected to the seat plate, the armrest plate and the grooved backing plate unit, and the entire use mode of the drawer unit is only to pull out and push in between the two armrest plates under the seat plate.

[0042] When the drawer-type sofa bed frame is used as a sofa, the drawer unit is pushed in, and its exposed side is roughly flush with the side of the seat plate facing the user, and the dual-purpose movable plate unit is snap-fitted and fixed on the grooved back plate unit to be used as a back cushion.

[0043] When the drawer-type sofa bed frame is used as a bed, the drawer unit is pulled out, and the dual-purpose movable plate unit is snap-fitted and fixed on the drawer unit to be used as a mattress. At this time, the positional relationship between the dual-purpose movable plate unit and the seat plate is that the upper surfaces are flush and the relative sides are as close as possible to each other.

[0044] Finally, when the drawer-type sofa bed frame is used as a bed, there is no unnecessary cushion soft bag structure on the grooved backrest unit, so more width can be left for the bed, greatly improving its practicality and comfort.

[0045] The grooved backrest unit includes a bottom plate arranged on the seat plate and the armrest plate, an inclined support plate arranged on the upper surface of the bottom plate, and a mounting groove arranged on the upper surface of the inclined support plate and used for engaging the dual-purpose movable plate unit.

[0046] In this embodiment, the frame structure materials of the seat plate, armrest plate, grooved backing plate unit, drawer unit, and dual-purpose movable plate unit are all made of wood or stainless steel. The seat plate, armrest plate, and dual-purpose movable plate unit also have soft packing materials, while the grooved backing plate unit and drawer unit may not have the above soft packing materials.

[0047] The opening direction of the drawer-type sofa bed frame is forward, that is, Figure 1 The bottom plate is a vertical plate, the upper end of the inclined support plate is inclined backward, and the shape of the mounting groove is a rectangle or a rectangular ring, that is, corresponding to the attached Fig.12 and attached Figure 7 , these two shapes can firmly engage the dual-purpose movable plate unit.

[0048] Moreover, the inclined state of the inclined support plate itself can further enhance the above-mentioned engagement effect, that is, the dual-purpose movable plate unit is on the top and the inclined support plate is on the bottom, and even if the two are not engaged, they already have a relatively high initial stability.

[0049] In addition, when the shape of the mounting groove is rectangular, it also has an additional function as a storage groove.

[0050] The drawer unit comprises a rectangular box body which is arranged below the seat plate and the upper surface and the inner side surface of the box body are respectively used for supporting and clamping the dual-purpose movable plate unit.

[0051] In this embodiment, the structure of the rectangular box body includes five flat panels, namely, a bottom panel, two end panels in the length direction of the sofa, a panel that is always exposed, and an inner side panel.

[0052] In addition, it does not matter whether the roller 5 is disposed on the bottom plate.

[0053] The dual-purpose movable panel unit comprises a main body panel and an inserting block which is arranged on the main body panel and is used for engaging with the installation groove or the rectangular box.

[0054] In this embodiment, the main body plate is in a rectangular shape, the length of the main body plate is consistent with the length of the seat plate, and the width of the main body plate can be greater than or less than the width of the seat plate.

[0055] In addition, when the installation slot is rectangular, the insertion block is rectangular or has four L-shaped corner clamping plates. Fig.13 When the mounting groove is a rectangular ring, the shape of the insert block is also a rectangular ring. Figure 6 .

[0056] The structure of the drawer-type sofa bed frame also includes a vertical rod which is arranged on the lower surface of the seat plate and is used to limit the rectangular box in the sliding opening and closing direction of the rectangular box.

[0057] In this embodiment, the functions of the vertical rod include at least the following two: First, when the rectangular box is completely pushed in and in a closed state, the vertical rod fixes it to prevent it from sliding outwards and opening spontaneously; Second, when the rectangular box is completely pulled out and in an open state, the vertical rods also fix it to prevent it from spontaneously sliding inward and retracting.

[0058] During the sliding process of the rectangular box, the vertical rod is idle and ineffective, and does not affect its sliding action.

[0059] The drawer unit also includes an inner cross bar whose two ends are respectively arranged on two end plates of the rectangular box and is used to fix the open state of the rectangular box by engaging the vertical rod together with the inner plate of the rectangular box.

[0060] In this embodiment, the inner cross bar is made of lightweight steel, and its first function is: When the rectangular box is fully pulled out and opened, the vertical rod passes over the inner cross bar and is stuck between the inner plate and the inner cross bar of the rectangular box, thereby fixing the rectangular box so that the rectangular box has a unique pulled-out and opened position.

[0061] At this time, since the length of the inner cross bar is relatively large and its downward bending ability is relatively sufficient, the material of the vertical rod can be a hard material with relatively small elasticity such as wood and metal.

[0062] The drawer unit further comprises a vertically rotating cover plate which is arranged in the rectangular box and hinged to the inner cross bar, and a protruding cross plate which is arranged on the inner side surface of the panel of the rectangular box and is used to support the vertically rotating cover plate.

[0063] In this embodiment, the second function of the inner cross bar is to hinge the vertically rotating cover plate, and the latter function is to prevent the clothes and other items in the rectangular box from tilting upward excessively, otherwise the rectangular box is easily stuck on the lower surface of the seat plate.

[0064] There are 2-3 vertically rotating cover plates, and a gap for passing the vertical rod is provided between two adjacent vertically rotating cover plates, so that the vertical rod will not affect the sliding pull-out and sliding push-in functions of the entire drawer unit.

[0065] In addition, the weight of the vertical rotating cover plate does not need to be large. When the vertical rotating cover plate is rotated downward and placed on the protruding horizontal plate, it is in the closed position of the vertical rotating cover plate, and at this time, the vertical rotating cover plate is substantially in a horizontal state.

[0066] The drawer unit further comprises a box closing state limiting groove which is arranged on the upper surface of the protruding horizontal plate and is used for inserting the vertical rod.

[0067] In this embodiment, the vertical rod is inserted into the closed state limit groove of the box body, so that the vertical rod can realize the function of preventing the rectangular box body from sliding outward and opening spontaneously.

[0068] At this time, the vertical rod and / or the protruding horizontal plate need to be appropriately deformed, and at least one of the two can be made of rubber with moderate elasticity. Correspondingly, in the length direction of the rectangular box, the box closed state limit groove is also located between two adjacent vertical rotating cover plates, always aligned with the vertical rod.

[0069] The drawer unit also includes a pull-out opening arranged on the panel of the rectangular box body, and a pull-down rod arranged on the protruding horizontal plate and manually pulled down through the pull-out opening to release the plug-in state of the vertical rod and the limit groove of the box body in the closed state.

[0070] In this embodiment, the functions of the pull-out opening include at least the following two: First, as a force application position for pulling out the rectangular box; Second, it serves as a force application position for actively bending the protruding horizontal plate downward.

[0071] Correspondingly, in the length direction of the rectangular box, the vertical rod, the box closed state limit groove, the lower pull rod and the pull-out opening are roughly aligned, so that the vertical rotating cover plate can undergo targeted downward bending deformation near the box closed state limit groove, so that the vertical rod can be relatively easily inserted into and slid out of the box closed state limit groove.

[0072] The drawer unit further comprises an elastic rubber strip which is arranged on the inner side surface of the panel of the rectangular box body and is used for arranging the protruding transverse plate.

[0073] In this embodiment, the length direction of the elastic rubber strip is the length direction of the rectangular box, and the former has relatively small elasticity in the width direction, ensuring that the vertical rod has relatively high structural stability when it engages with the limit groove in the closed state of the box.

[0074] The former, that is, the elastic rubber strip has relatively large bending elasticity in the thickness direction, so that it is easy to bend downward, thereby simply releasing and establishing the engagement relationship between the vertical rod and the limiting groove in the closed state of the box body.

[0075] At this time, the protruding horizontal plate itself does not need to provide elastic deformation, the vertically rotating cover plate itself has a small weight, and will not spontaneously bend and deform the elastic rubber strip downward.

[0076] The above detailed description of the implementation methods of the present application is made in conjunction with the accompanying drawings, but the present application is not limited to the above implementation methods. Various modifications can be made within the knowledge of ordinary technicians in the technical field without departing from the purpose of the present application. These are all non-creative modifications and are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A drawer-type sofa bed frame, comprising a seat plate (11) and an armrest plate (12), characterized in that: It also includes a grooved backboard unit (1) arranged on the seat plate (11) and the armrest plate (12), a drawer unit (2) arranged below the seat plate (11), and a dual-purpose movable plate unit (3) which is engaged with the grooved backboard unit (1) and is used to engage the drawer unit (2) when mounted on the drawer unit (2) for use.

2. The drawer-type sofa bed frame according to claim 1, characterized in that: The grooved backrest unit (1) comprises a bottom plate (101) arranged on the seat plate (11) and the armrest plate (12), an inclined support plate (102) arranged on the upper surface of the bottom plate (101), and a mounting groove (103) arranged on the upper surface of the inclined support plate (102) and used for engaging the dual-purpose movable plate unit (3).

3. The drawer-type sofa bed frame according to claim 2, characterized in that: The drawer unit (2) comprises a rectangular box body (201) which is arranged below the seat plate (11) and whose upper surface and inner side surface are respectively used to support and engage the dual-purpose movable plate unit (3).

4. The drawer-type sofa bed frame according to claim 3, characterized in that: The dual-purpose movable panel unit (3) comprises a main panel (301) and an insertion block (302) arranged on the main panel (301) and used for engaging with the installation groove (103) or the rectangular box (201).

5. The drawer-type sofa bed frame according to claim 3, characterized in that: It also comprises a vertical rod (4) which is arranged on the lower surface of the seat plate (11) and is used to limit the rectangular box body (201) in the sliding opening and closing direction of the rectangular box body (201).

6. The drawer-type sofa bed frame according to claim 5, characterized in that: The drawer unit (2) further comprises an inner cross bar (202) whose two ends are respectively arranged on two end plates of the rectangular box body (201) and which is used to fix the rectangular box body (201) in an open state by engaging the vertical bar (4) together with the inner plate of the rectangular box body (201).

7. The drawer-type sofa bed frame according to claim 6, characterized in that: The drawer unit (2) further comprises a vertically rotating cover plate (203) arranged in the rectangular box body (201) and hinged to the inner cross bar (202), and a protruding cross plate (204) arranged on the inner side surface of the panel of the rectangular box body (201) and used to support the vertically rotating cover plate (203).

8. The drawer-type sofa bed frame according to claim 7, characterized in that: The drawer unit (2) further comprises a box closed state limiting groove (205) which is arranged on the upper surface of the protruding horizontal plate (204) and is used for inserting the vertical rod (4).

9. The drawer-type sofa bed frame according to claim 8, characterized in that: The drawer unit (2) further comprises a pull-out opening (206) arranged on the panel of the rectangular box (201), and a pull-down rod (207) arranged on the protruding horizontal plate (204) and manually pulled down through the pull-out opening (206) to release the plug-in state of the vertical rod (4) and the box closed state limit groove (205).

10. The drawer-type sofa bed frame according to claim 8, characterized in that: The drawer unit (2) further comprises an elastic rubber strip (208) which is arranged on the inner side surface of the panel of the rectangular box (201) and is used to arrange the protruding horizontal plate (204).

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