Sofa bed capable of being automatically folded and unfolded

Abstract

The utility model relates to the technical field of sofa beds, in particular to a sofa bed capable of automatically folding and unfolding, which comprises a sofa body, mounting frames, a rotating plate, a clockwork spring I, a connecting rod, a backup plate and the like, the sofa body is symmetrically connected with the mounting frames, and the rotating plate is rotatably connected with the mounting frames and can swing up and down to switch folding and unfolding states. The first clockwork spring is connected with the rotating plate and the mounting frame to provide force for the rotating plate to rotate and unfold upwards, the connecting rod is connected with the rotating plate, and the backup plate is rotationally connected with the mounting frame and can swing up and down to switch the folding and unfolding states. By pulling the sliding rods upwards, the clamping grooves can be far away from the connecting rods so as to unlock the rotating plate, meanwhile, the clamping blocks can be squeezed to move towards the inner side to be folded so as to unlock the backup plate, the rotating plate and the backup plate can rotate to be unfolded at the moment, the sofa bed is switched into a bed form from a sofa form, operation is easy, and practicability is high. Therefore, the sofa bed is convenient to use.

Description

Technical Field

[0001] This utility model relates to the technical field of sofa beds, and more specifically, to a sofa bed that can be automatically retracted. Background Technology

[0002] A sofa bed is a piece of furniture that can be used as both a sofa and a bed. Modern home furnishings emphasize simplicity, and multifunctional furniture is becoming an increasingly popular choice. In small apartments, a sofa bed is essential to accommodate occasional guests.

[0003] When switching between a sofa and a bed, users need to get up and manually unfold or fold the existing sofa bed. This operation is cumbersome and cannot meet the user's desire to switch at will, making it inconvenient to use. Although some electric sofa beds can achieve automatic unfolding and folding functions, they cannot be used when there is no power, which is a drawback. Utility Model Content

[0004] In view of this, the present invention provides a sofa bed that can be automatically unfolded and folded, which can overcome the disadvantages of existing sofa beds where the user needs to leave the sofa bed and manually unfold or fold it when switching between sofa and bed, which is cumbersome and inconvenient to use.

[0005] The technical solution is as follows:

[0006] An automatically folding sofa bed includes a sofa body, a mounting frame, a rotating plate, a first mainspring, a connecting rod, a backrest, a second mainspring, support legs, locking blocks, springs, and a sliding rod. The mounting frame is symmetrically connected to the sofa body. The rotating plate is rotatably connected to the mounting frame and can swing up and down to switch between folding and unfolding states. The first mainspring connects the rotating plate and the mounting frame to provide force for the rotating plate to rotate upwards and unfold. The connecting rod is connected to the rotating plate. The backrest is rotatably connected to the mounting frame and can swing up and down to switch between folding and unfolding states. The second mainspring connects the backrest and the mounting frame to provide force for the backrest to rotate upwards and fold up. Support legs are symmetrically connected to the backrest so that the support legs can rotate synchronously with the backrest. When the support legs rotate to contact the ground, they can support the backrest. Two locking blocks are slidably connected to the backrest and can slide left and right. Springs connect the locking blocks and the backrest to allow the locking blocks to elastically return to their original position. The sliding rod slides within a guide groove and can slide up and down.

[0007] Preferably, each mounting frame has a guide groove, and the locking block is engaged in the guide groove to lock the back plate.

[0008] Preferably, the bottom of the card block is sloped.

[0009] Preferably, the sliding rod has grooves, and the sidewalls of the grooves are inclined. When the sliding rod moves upward, it can squeeze the locking block through the sidewalls of the grooves and slide inward to retract.

[0010] Preferably, each mounting frame has a guide groove 2, and the connecting rod can rotate within the guide groove 2 to guide the rotating plate.

[0011] Preferably, the connecting rod is U-shaped.

[0012] Preferably, the sliding rod has a slot, and the two ends of the connecting rod are respectively located in the two slots to lock the connecting rod.

[0013] Preferably, the support feet are all tilted outwards to maintain the stability of the backrest.

[0014] Preferably, the slide bar includes a protective cover, and the front end of each slide bar is connected to a protective cover.

[0015] Preferably, the end of the protective sleeve is curved.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] This invention unlocks the rotating plate by pulling the sliding rod upward, which moves the slot away from the connecting rod. At the same time, it can squeeze the locking block to move inward and retract, thus unlocking the backrest. At this time, both the rotating plate and the backrest can rotate and unfold, so that the sofa bed can be switched from sofa mode to bed mode. The operation is simple and the user cannot get up and leave the sofa bed, making it convenient to use. Attached Figure Description

[0018] Figure 1 This is the first illustration of the present utility model.

[0019] Figure 2 This is the second illustration of the present utility model.

[0020] Figure 3 This is a schematic diagram of the mounting frame of this utility model.

[0021] Figure 4 This is a schematic diagram showing the connection between the rotating plate and the connecting rod of this utility model.

[0022] Figure 5 This is a schematic diagram showing the connection between the first and second mainsprings of this utility model.

[0023] Figure 6 This is a schematic diagram of the installation of the locking block and spring of this utility model.

[0024] Figure 7 This is a schematic diagram showing the connection between the sliding rod and the protective sleeve of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1: Sofa body, 2: Mounting frame, 21: Guide groove one, 22: Guide groove two, 3: Rotating plate, 31: Spring one, 32: Connecting rod, 4: Backrest plate, 41: Spring two, 5: Support leg, 6: Locking block, 61: Spring, 7: Sliding rod, 71: Protective cover, 72: Locking groove, 73: Groove. Detailed Implementation

[0026] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0027] Example: A sofa bed that can automatically unfold and retract, such as Figures 1-7 As shown, the sofa includes a sofa body 1, a mounting frame 2, a rotating plate 3, a first spring 31, a connecting rod 32, a backrest 4, a second spring 41, a support leg 5, a locking block 6, a spring 61, a sliding rod 7, and a protective cover 71. Mounting frames 2 are connected to both the left and right sides of the sofa body 1. Each mounting frame 2 has a guide groove 21 on its rear side near the sofa body 1 and a guide groove 22 on its front side near the sofa body 1. A rotating plate 3 is rotatably connected to the upper front of the mounting frame 2. A first spring 31 connects the rotating plate 3 to the mounting frame 2. A connecting rod 32 is connected to the upper rear of the rotating plate 3. The connecting rod 32 is U-shaped and can rotate within the guide groove 22. A rotating connection is provided with a backing plate 4. A spring 41 connects the backing plate 4 to the mounting frame 2. Support feet 5 are symmetrically connected to the left and right sides of the backing plate 4. The support feet 5 are all inclined. A locking block 6 is slidably connected to the lower part of the left and right sides of the backing plate 4. The locking block 6 is locked in the guide groove 21. The bottom of the locking block 6 is inclined. A spring 61 is connected between the locking block 6 and the backing plate 4. A sliding rod 7 is slidably connected in the guide groove 21. A slot 72 is opened on the front side of the bottom of the sliding rod 7. The two ends of the connecting rod 32 are located in the two slots 72 respectively. A groove 73 is opened on the rear side of the top of the sliding rod 7. The side wall of the groove 73 is inclined. When the sliding rod 7 moves upward, the groove 73 will contact the locking block 6. A protective sleeve 71 is connected to the front end of the sliding rod 7.

[0028] Initially, the mainspring 31 is in a deformed state, and the sofa bed is in sofa form. The user can sit on the sofa body 1 and rest against the backrest 4. When the user needs to switch the sofa bed to bed form, they can hold the protective cover 71 with both hands and pull the sliding rod 7 upwards, moving the slot 72 away from the connecting rod 32. This releases the connecting rod 32, allowing the mainspring 31 to return to its original state. This enables the rotating plate 3 to rotate upwards by 90 degrees and unfold. The rotating plate 3 then drives the connecting rod 32 to rotate within the guide groove 22, serving a guiding function. When the groove 73 contacts the locking block 6, since both the groove 73 and the locking block 6 are inclined surfaces, the sliding rod 7 can press the locking block 6 inward through the groove 73 to retract. The spring 61 is compressed, causing the locking block 6 to move away from the guide groove 21. At this time, the user can lie down directly, which can press the backrest 4 to rotate downward 90 degrees and unfold. The backrest 4 can drive the support leg 5 to rotate downward and contact the ground, providing support. At this time, the top of the sofa body 1, the backrest 4 and the rotating plate 3 are at the same horizontal height, allowing the user to lie down and rest.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sofa bed capable of automatic folding and unfolding, characterized in that, The utility model relates to a sofa, which comprises a sofa body (1), a mounting frame (2), a rotating plate (3), a first spring (31), a connecting rod (32), a backrest (4), a second spring (41), a supporting leg (5), a clamping block (6), a spring (61) and a sliding rod (7), the mounting frame (2) is symmetrically connected to the sofa body (1), the rotating plate (3) is rotatably connected to the mounting frame (2) and can swing up and down to switch the folding and unfolding state, the first spring (31) is connected between the rotating plate (3) and the mounting frame (2) to provide a force for the rotating plate (3) to rotate upward and unfold, the connecting rod (32) is connected to the rotating plate (3), the backrest (4) is rotatably connected to the mounting frame (2) and can swing up and down to switch the folding and unfolding state, the second spring (41) is connected between the backrest (4) and the mounting frame (2) to provide a force for the backrest (4) to rotate upward and fold, the supporting leg (5) is symmetrically connected to the backrest (4) to rotate synchronously with the backrest (4), the supporting leg (5) is in contact with the ground to support the backrest (4), the clamping block (6) is slidably connected to the backrest (4) and can slide left and right, the spring (61) is connected between the clamping block (6) and the backrest (4) to make the clamping block (6) elastically reset, and the sliding rod (7) slides in the guide groove (21) and can slide up and down.

2. The sofa bed of claim 1, wherein, The mounting frame (2) is provided with the guide groove (21), the clamping block (6) is clamped in the guide groove (21) to lock the backrest (4).

3. The sofa bed of claim 1, wherein, The bottom of the clamping block (6) is inclined.

4. The sofa bed of claim 3, wherein, The sliding rod (7) is provided with the recess (73), and the side wall of the recess (73) is inclined, when the sliding rod (7) moves upward, the clamping block (6) is pressed inward to fold by the side wall of the recess (73).

5. The sofa bed of claim 1, wherein, The mounting frame (2) is provided with the guide groove (22), the connecting rod (32) can rotate in the guide groove (22) to guide the rotating plate (3).

6. The sofa bed of claim 1, wherein, The connecting rod (32) is in the shape of U.

7. The sofa bed of claim 1, wherein, The sliding rod (7) is provided with the clamping groove (72), the two ends of the connecting rod (32) are located in the clamping grooves (72) to lock the connecting rod (32).

8. The sofa bed of claim 1, wherein, The supporting leg (5) is inclined outward to keep the stability of the backrest (4).

9. The sofa bed of claim 1, wherein, The sliding rod (7) is provided with the protective sleeve (71).

10. The sofa bed of claim 9, wherein, The end of the protective sleeve (71) is arc-shaped.

Images