A new type of sofa bed

Abstract

This utility model relates to the field of sofa bed technology and provides a novel sofa bed, comprising: a lower frame; armrest frames symmetrically fixed to the lower frame, with guide plates fixedly installed on the armrest frames; a movable upper frame disposed within the lower frame; mounting plates symmetrically fixed to the upper frame; a first rubber wheel and a second rubber wheel rotatably mounted on the mounting plate via bearings, the first rubber wheel and the second rubber wheel contacting the guide plate; and an adjustment mechanism disposed on the lower frame and the upper frame for controlling the movement of the upper frame. The novel sofa bed provided by this solution replaces the traditional ball bearing slide rail with the cooperation of the first rubber wheel, the second rubber wheel, and the guide plate. Combined with the contact between the rubber particles on the mounting plate and the guide plate, it reduces wobbling and minimizes jamming, abnormal noise, and shaking during the movement of the upper frame.

Description

Technical Field

[0001] This utility model belongs to the field of sofa bed technology, and in particular relates to a novel sofa bed. Background Technology

[0002] An electric sofa bed is a piece of furniture that combines the functions of a sofa and a bed. It can be transformed into its original form through an electric device. It usually consists of an upper frame and a lower frame, with an electric moving mechanism installed between them to control the movement of the upper frame on the lower frame to achieve the transformation.

[0003] Currently, existing electric sofa beds use a track structure to achieve relative sliding between the upper and lower frames. This primarily involves a steel main rail with steel balls inside, where the upper frame slides back and forth by the rolling of the steel balls. However, after long-term operation, this structure is prone to problems such as jamming, abnormal noises, or even steel balls falling off due to aging parts or foreign objects adhering to the track, seriously affecting the normal use and lifespan of the electric sofa bed. Utility Model Content

[0004] This utility model provides a new type of sofa bed, which aims to solve the problem of steel balls falling off in current electric sofa beds.

[0005] This utility model is implemented as follows: a novel sofa bed includes: a lower frame; armrest frames symmetrically fixed to the lower frame, with guide plates fixedly installed on the armrest frames; an upper frame disposed within the lower frame and movable; mounting plates symmetrically fixed to the upper frame; a first rubber wheel and a second rubber wheel rotatably mounted on the mounting plate via bearings, the first rubber wheel and the second rubber wheel contacting the guide plate; and an adjustment mechanism disposed on the lower frame and the upper frame for controlling the movement of the upper frame.

[0006] Preferably, the adjustment mechanism includes: a horizontal plate fixed on the lower frame; an electric guide rail fixed on the upper frame; and a sliding plate fixed on the horizontal plate for guiding the electric guide rail.

[0007] Preferably, the bottom of the upper frame is symmetrically and fixedly equipped with support legs, and the support legs are rotatably mounted with rollers.

[0008] Preferably, a first connecting plate is hinged to the lower frame, a backrest plate is hinged to the first connecting plate, a second connecting plate is hinged to the backrest plate, a third connecting plate is hinged to the second connecting plate, and one end of the third connecting plate is hinged to the upper frame.

[0009] Preferably, multiple foot pads are symmetrically fixedly installed on the bottom of the lower frame.

[0010] Preferably, a bending frame is fixedly installed on the top of the lower frame.

[0011] Preferably, adhesive particles are fixedly mounted on the mounting plate, and the adhesive particles are in contact with the guide plate.

[0012] Compared with related technologies, the novel sofa bed provided by this utility model has the following beneficial effects:

[0013] The traditional steel ball slide rail is replaced by the cooperation of the first rubber wheel, the second rubber wheel and the guide plate. The rubber particles on the mounting plate contact the guide plate to reduce shaking and reduce jamming, abnormal noise and shaking when the frame moves. The electric guide rail of the adjustment mechanism cooperates with the slide plate to ensure smooth movement of the frame. The support legs and rollers enhance the stability after the frame is unfolded. The linkage of the first connecting plate, the second connecting plate, the third connecting plate and the back plate realizes coordinated movement during shape transformation. Attached Figure Description

[0014] Figure 1 A side view structural diagram of a novel sofa bed provided by this utility model;

[0015] Figure 2 This is a first three-dimensional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the second three-dimensional structure of the present invention;

[0017] Figure 4 This is a top view of the structure of this utility model;

[0018] Figure 5 This is a bottom view of the structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 7 This is a schematic diagram of the rear view structure of this utility model.

[0021] Reference numerals: 1. Lower frame; 2. Handrail frame; 3. Guide plate; 4. Upper frame; 5. Mounting plate; 6. First rubber wheel; 7. Second rubber wheel; 8. Horizontal plate; 9. Slide plate; 10. Electric guide rail; 11. Support leg; 12. Roller; 13. First connecting plate; 14. Backrest plate; 15. Second connecting plate; 16. Third connecting plate; 17. Foot pad. Detailed Implementation

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] This utility model embodiment provides a novel sofa bed, such as Figure 1-7 As shown, the new sofa bed includes: a lower frame 1; armrest frames 2 symmetrically fixed to the lower frame 1, with guide plates 3 fixedly installed on the armrest frames 2; an upper frame 4 disposed within the lower frame 1 and movable; mounting plates 5 symmetrically fixed to the upper frame 4; a first rubber wheel 6 and a second rubber wheel 7 rotatably mounted on the mounting plate 5 via bearings, the first rubber wheel 6 and the second rubber wheel 7 contacting the guide plate 3; and an adjustment mechanism disposed on the lower frame 1 and the upper frame 4 for controlling the movement of the upper frame 4.

[0024] In this embodiment, the mounting plate 5 is symmetrically fixed on the upper frame 4, and the first rubber wheel 6 and the second rubber wheel 7 are rotatably mounted on the mounting plate 5 through bearings and are in contact with the guide plate 3 fixed on the handrail frame 2. This structure allows the first rubber wheel 6 and the second rubber wheel 7 to roll smoothly along the guide plate 3, providing guiding support for the movement of the upper frame 4 and ensuring that the upper frame 4 maintains a stable trajectory when moving.

[0025] When it is necessary to change the sofa bed mode, the adjustment mechanism set on the lower frame 1 and the upper frame 4 is activated. The adjustment mechanism drives the upper frame 4 to move forward within the lower frame 1 and unfold into the bed mode. At this time, the mounting plate 5 moves together with the upper frame 4, and the first rubber wheel 6 and the second rubber wheel 7 roll on the guide plate 3, which reduces the frictional resistance during the movement of the upper frame 4, ensures smooth and stable movement, and avoids jamming.

[0026] The contact and cooperation between the first rubber wheel 6 and the second rubber wheel 7 and the guide plate 3 replaces the traditional steel ball slide rail, effectively avoiding the problem of steel balls falling off.

[0027] In a further preferred embodiment of the present invention, the adjustment mechanism includes: a horizontal plate 8 fixed on the lower frame 1; an electric guide rail 10 fixed on the upper frame 4; and a sliding plate 9 fixed on the horizontal plate 8 for guiding the electric guide rail 10.

[0028] In this embodiment, the horizontal plate 8 of the adjustment mechanism is fixed on the lower frame 1, the electric guide rail 10 is fixed on the upper frame 4, and the slide plate 9 is fixed on the horizontal plate 8. The slide plate 9 cooperates with the electric guide rail 10 to provide a path for the movement of the electric guide rail 10, so that the electric guide rail 10 can move stably along the direction of the slide plate 9;

[0029] When the upper shelf 4 needs to be moved, the electric guide rail 10 is activated and moves in a set direction under the guidance and restriction of the slide plate 9, thereby driving the upper shelf 4 to move back and forth within the lower shelf 1. During this process, the slide plate 9 restricts the movement direction of the electric guide rail 10 to ensure that the electric guide rail 10 does not deviate from the preset trajectory;

[0030] The adjustment mechanism is powered by the electric guide rail 10 and guided by the slide plate 9, making the movement of the upper frame 4 more stable and reliable, and reducing the deviation phenomenon during the movement.

[0031] In a further preferred embodiment of the present invention, the bottom of the upper frame 4 is symmetrically and fixedly equipped with support legs 11, and rollers 12 are rotatably mounted on the support legs 11.

[0032] In this embodiment, the support legs 11 are symmetrically and fixedly installed at the bottom of the upper frame 4, and the rollers 12 are rotatably installed on the support legs 11. This installation method allows the rollers 12 to rotate flexibly, forming the bottom support structure of the upper frame 4 together with the support legs 11;

[0033] When the upper frame 4 moves forward and unfolds into a bed shape, the support legs 11 extend out of the lower frame 1 along with the upper frame 4, at which point the rollers 12 come into contact with the ground. As the upper frame 4 continues to move, the rollers 12 roll on the ground, assisting the upper frame 4 in completing the unfolding action and reducing the load-bearing pressure when the upper frame 4 moves;

[0034] The support legs 11 and casters 12 provide additional support for the unfolded upper frame 4, enhancing its stability in bed form. Simultaneously, the rolling action of the casters 12 reduces friction between the upper frame 4 and the ground during movement, making the unfolding process smoother.

[0035] In a further preferred embodiment of the present invention, a first connecting plate 13 is hinged to the lower frame 1, a backrest plate 14 is hinged to the first connecting plate 13, a second connecting plate 15 is hinged to the backrest plate 14, a third connecting plate 16 is hinged to the second connecting plate 15, and one end of the third connecting plate 16 is hinged to the upper frame 4.

[0036] In this embodiment, a first connecting plate 13 is hinged to the lower frame 1, a backing plate 14 is hinged to the first connecting plate 13, a second connecting plate 15 is hinged to the backing plate 14, and a third connecting plate 16 is hinged to the second connecting plate 15. One end of the third connecting plate 16 is hinged to the upper frame 4. The components form a linkage structure through hinges, so that when one component moves, it can drive the other components to move accordingly.

[0037] When the upper shelf 4 moves forward and unfolds, it will pull the third connecting plate 16 to move. The third connecting plate 16 will drive the second connecting plate 15 to rotate. The second connecting plate 15 will then drive the backrest plate 14. The backrest plate 14 will pull the first connecting plate 13, so that the components will move in sequence. The backrest plate 14 will gradually adjust its angle to adapt to the shape of the bed board.

[0038] In a further preferred embodiment of this utility model, a plurality of foot pads 17 are symmetrically fixedly installed on the bottom of the lower frame 1.

[0039] In this embodiment, multiple foot pads 17 are symmetrically fixedly installed on the bottom of the lower frame 1. This installation method allows the foot pads 17 to be evenly distributed on both sides of the bottom of the lower frame 1, providing a stable support base for the entire sofa bed;

[0040] When the sofa bed is in use, whether in sofa or bed form, the foot pads 17 are in direct contact with the ground, separating the lower frame 1 from the ground. When the sofa bed is subjected to force or moves slightly, the foot pads 17 will act on the ground along with the lower frame 1, providing a cushioning and stabilizing effect.

[0041] In a further preferred embodiment of this utility model, a bending frame is fixedly installed on the top of the lower frame 1.

[0042] In this embodiment, the bending frame is fixedly installed on the top of the lower frame 1, forming a stable backrest support structure together with the lower frame 1 and the backrest plate 14. This combined structure ensures that the components are tightly connected and can jointly withstand the forces generated when leaning against the back.

[0043] When the sofa bed is in sofa mode and a person leans against the backrest 14, the force is transmitted through the backrest 14 to the bending frame and the lower frame 1. The backrest support structure is subjected to force as a whole, making the backrest 14 less prone to wobbling or shifting. When the upper frame 4 moves and changes the form with related components, the structural stability of the backrest support structure is not affected.

[0044] In a further preferred embodiment of this utility model, adhesive particles are fixedly installed on the mounting plate 5, and the adhesive particles are in contact with the guide plate 3.

[0045] In this embodiment, the adhesive particles are fixedly mounted on the mounting plate 5 and in contact with the guide plate 3. This mounting configuration allows the adhesive particles to remain in contact with the guide plate 3, forming an auxiliary contact structure.

[0046] When the upper frame 4 moves the mounting plate 5, the rubber particles move along with the mounting plate 5, creating relative sliding between it and the guide plate 3. During this process, the rubber particles fill the gap between the mounting plate 5 and the guide plate 3, limiting the swaying amplitude of the mounting plate 5.

[0047] In summary, compared with related technologies, the use of the first rubber wheel 6, the second rubber wheel 7, and the guide plate 3 to replace the traditional steel ball slide rail, combined with the rubber particles on the mounting plate 5 filling the gaps, reduces the jamming, abnormal noise, and shaking when the upper frame 4 moves; the sliding plate 9 of the adjustment mechanism guides the electric guide rail 10 to ensure the smooth movement of the upper frame 4; the support leg 11 and the roller 12 enhance the stability of the upper frame 4 after it is unfolded; the linkage of the first connecting plate 13, the second connecting plate 15, the third connecting plate 16, and the back plate 14 realizes coordinated movements during shape transformation.

[0048] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0049] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A new type of sofa bed, characterized in that, include: Removed from shelves; A handrail frame is symmetrically fixed on the lower frame, and a guide plate is fixedly installed on the handrail frame; A movable upper shelf located within the lower shelf; Mounting plates symmetrically fixed to the upper frame; A first rubber wheel and a second rubber wheel, which are mounted on the mounting plate by a bearing, rotate and contact the guide plate. An adjustment mechanism is provided on the lower shelf and the upper shelf to control the movement of the upper shelf.

2. The new sofa bed according to claim 1, characterized in that, The adjustment mechanism includes: A horizontal plate fixed to the lower frame; Electric guide rails fixed to the upper frame; The slide plate fixed on the horizontal plate is used to guide the electric guide rail.

3. The new sofa bed according to claim 1, characterized in that, The bottom of the upper frame is symmetrically and fixedly equipped with support legs, and rollers are rotatably mounted on the support legs.

4. The new sofa bed according to claim 1, characterized in that, The lower frame is hinged to a first connecting plate, a backrest plate is hinged to the first connecting plate, a second connecting plate is hinged to the backrest plate, a third connecting plate is hinged to the second connecting plate, and one end of the third connecting plate is hinged to the upper frame.

5. The new sofa bed according to claim 1, characterized in that, Multiple foot pads are symmetrically fixed to the bottom of the lower shelf.

6. The new sofa bed according to claim 1, characterized in that, A bending frame is fixedly installed on the top of the lower shelf.

7. The new sofa bed according to claim 1, characterized in that, Adhesive particles are fixedly installed on the mounting plate, and the adhesive particles are in contact with the guide plate.

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