Folding sofa bed with novel structure

Abstract

The utility model discloses a folding sofa bed with a novel structure, which relates to the technical field of sofas, and comprises a first seat cushion, a second seat cushion and a backrest, one side of the second seat cushion and one side of the backrest are respectively rotatably connected with the opposite side of the first seat cushion, the bottom surface of the first seat cushion is fixedly connected with two support plates, and the two support plates are fixedly connected with the bottom surface of the second seat cushion. Armrests are fixedly connected to the two sides of the surface of the first cushion, a supporting assembly is jointly arranged on one face of the second cushion and one face of the backrest, and moving assemblies capable of changing the angle of the backrest by moving are arranged on the two armrests. According to the utility model, the adjusting assembly is matched with the moving assembly, so that the backrest can be laid flat and erected, the operation is simple and convenient, and the angle of the backrest can be adjusted by controlling the moving position of the moving assembly; the sofa bed can be adjusted according to the use posture, so that a user can use the sofa bed more comfortably, and the practicability of the sofa bed is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of sofas, in particular to a folding sofa bed with a novel structure. Background Technique

[0002] A sofa bed refers to a piece of furniture that can be used as both a sofa and a bed. In modern living room layouts, simplicity is highly regarded, and multi-functional furniture has increasingly become a popular choice, among which the sofa bed is one. In small-sized apartments, in order to meet the occasional accommodation needs of visitors, a sofa bed is very necessary. Usually, the sofa bed can be placed in the living room or study to serve as a seat; at night when guests arrive, the sofa bed is unfolded and covered with bedding to become a sleeping bed.

[0003] The applicant found through retrieval that the Chinese patent discloses "a folding rattan-like sofa bed with a novel structure", and its publication number is "CN216569176U". This patent mainly uses motor drive to move the threaded block and push the support base to move. The pulleys at the bottom of the support base facilitate the movement of the support base, and at the same time, the slotted groove facilitates the sliding out of the support base. The threaded block moves and pushes the rack to move, the rack moves and pushes the block to move, so that the block and the square block are no longer buckled. The rack moves and pushes the first gear to rotate, so that the first gear drives the second gear and the sprocket chain to rotate, so that the rotating rod drives the connecting arm and the rear baffle to rotate, so as to achieve the purpose of flattening. At the same time, the support base supports the rear baffle, and there is no need for manual flattening and folding operations, which is convenient, fast, time-saving and labor-saving;

[0004] The above-mentioned sofa bed can replace manual flattening of the sofa bed through a series of structures, thus achieving the effect of saving time and effort. However, when the above-mentioned device is actually used, due to the tight and complex internal transmission structure, the manufacturing cost is relatively high, and it is not easy to maintain in the later stage. Moreover, the backrest of the above-mentioned sofa bed cannot be adjusted according to the user's usage scenario, resulting in the sofa bed not meeting the needs of some people. Content of the Utility Model

[0005] The purpose of the utility model is to provide a folding sofa bed with a novel structure to solve the problems of high manufacturing cost, difficult later maintenance and inability to adjust the angle of the backrest proposed in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A folding sofa bed with a novel structure, including a first seat cushion, a second seat cushion and a backrest. One side of the second seat cushion and the backrest are respectively rotatably connected to the opposite side of the first seat cushion. Two support plates are fixedly connected to the bottom surface of the first seat cushion. Armrests are fixedly connected to both sides of the surface of the first seat cushion. A support assembly is provided on one side of the second seat cushion and the backrest. A moving assembly capable of changing the angle of the backrest by moving is provided on both armrests. An adjusting assembly capable of adjusting the moving position of the moving assembly is provided inside the moving assembly. A limiting assembly capable of limiting the moving assembly is provided inside the moving assembly.

[0007] Preferably, the moving assembly includes a moving groove opened on one side of the armrest. A moving block is slidably connected to the inner wall of the moving groove. One side of the moving block is rotatably connected to a linkage rod. The end of the linkage rod away from the moving block is rotatably connected to one side of the backrest. Five clamping grooves are evenly opened on the top surface and the bottom surface of the inner wall of the moving groove. The clamping grooves on the top surface of the inner wall of the moving groove are aligned with the clamping grooves on the bottom surface of the inner wall of the moving groove, and two aligned clamping grooves are a group.

[0008] Preferably, the moving assembly further includes two clamping rods. The opposite ends of the two clamping rods are respectively slidably connected to the inner walls of one group of clamping grooves. The opposite ends of the two clamping rods respectively penetrate through the opposite sides of the moving block and extend into the inside of the moving block.

[0009] Preferably, the adjusting assembly includes two passive plates. The opposite sides of the two passive plates are respectively fixedly connected to the opposite ends of the two clamping rods. Two connecting rods are slidably connected to the inner walls of the two passive plates together. Springs are sleeved on the rod walls of the two connecting rods.

[0010] Preferably, the adjusting assembly further includes a pressing rod. One end of the pressing rod penetrates through one side of the surface of the moving block and the rod wall is slidably connected to the inner wall of the moving block. At the top and bottom of the end of the pressing rod located inside the moving block, connecting plates are fixedly connected. Two control blocks are fixedly connected to one side of each of the two connecting plates. One side of the upper two control blocks is slidably connected to the top surface of one of the passive plates. One side of the lower two control blocks is slidably connected to the bottom surface of the other passive plate.

[0011] Preferably, the limiting assembly includes two limiting grooves. The two limiting grooves are respectively opened on the opposite sides of the inner wall of the moving block. Two groups of limiting blocks are slidably connected to the inner walls of the two limiting grooves. The opposite sides of each group of limiting blocks are respectively fixedly connected to the opposite sides of the corresponding passive plates.

[0012] Preferably, the support assembly includes two sets of mounting grooves which are respectively formed on one side of the second seat cushion and the backrest, and support legs are rotatably connected to the inner walls of the two sets of mounting grooves.

[0013] Preferably, the four control blocks and the two passive plates are all trapezoidal, and the inclined surfaces of the control blocks are slidably connected to the inclined surfaces of the passive plates.

[0014] The technical effects and advantages of the present utility model: By cooperating the adjustment assembly and the moving assembly, the present utility model can achieve the effects of flattening and erecting the backrest. The operation is simple and convenient, and the angle of the backrest can be adjusted by controlling the moving position of the moving assembly, so that the sofa bed can be adjusted according to the use posture to make the user more comfortable, and the practicality of the sofa bed is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0016] Figure 2 is an expanded three-dimensional structural schematic diagram of the present utility model.

[0017] Figure 3 is a front view partial sectional structural schematic diagram of the armrest of the present utility model.

[0018] Figure 4 For the present utility model Figure 3 is an enlarged structural schematic diagram at A in

[0019] Figure 5 is a top view partial sectional structural schematic diagram of the moving block of the present utility model.

[0020] In the figure: 1, the first seat cushion; 2, the second seat cushion; 3, the backrest; 4, the moving assembly; 5, the support assembly; 6, the adjustment assembly; 7, the limiting assembly; 8, the armrest; 9, the support plate; 401, the moving groove; 402, the clamping groove; 403, the clamping rod; 404, the moving block; 405, the linkage rod; 501, the mounting groove; 502, the support leg; 601, the passive plate; 602, the control block; 603, the connecting rod; 604, the connecting plate; 605, the spring; 606, the pressing rod; 701, the limiting block; 702, the limiting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] The utility model provides a folding sofa bed with a new structure as shown in Figures 1-5 , which includes a first seat cushion 1, a second seat cushion 2 and a backrest 3. One side of the second seat cushion 2 and the backrest 3 are respectively rotatably connected to the opposite side of the first seat cushion 1. Two support plates 9 are fixedly connected to the bottom surface of the first seat cushion 1. Armrests 8 are fixedly connected to both sides of the surface of the first seat cushion 1. A support assembly 5 is jointly provided on one side of the second seat cushion 2 and the backrest 3. A moving assembly 4 capable of changing the angle of the backrest 3 by moving is provided on both armrests 8. An adjusting assembly 6 capable of adjusting the moving position of the moving assembly 4 is provided inside the moving assembly 4. A limiting assembly 7 capable of limiting the moving assembly 4 is provided inside the moving assembly 4. By cooperating the adjusting assembly 6 and the moving assembly 4, the backrest 3 can be flattened and erected, the operation is simple and convenient, and the angle of the backrest 3 can be adjusted by controlling the moving position of the moving assembly 4, so that the sofa bed can be adjusted according to the use posture to make the user more comfortable, and the practicability of the sofa bed is higher.

[0023] As shown in Figures 3-5 , the moving assembly 4 includes a moving groove 401 opened on one side of the armrest 8. A moving block 404 is slidably connected to the inner wall of the moving groove 401. A linkage rod 405 is rotatably connected to one side of the moving block 404. The linkage rod 405 can support the backrest 3. One end of the linkage rod 405 far from the moving block 404 is rotatably connected to one side of the backrest 3. Five clamping grooves 402 are evenly opened on the top surface and the bottom surface of the inner wall of the moving groove 401. The clamping grooves 402 on the top surface of the inner wall of the moving groove 401 are aligned with the clamping grooves 402 on the bottom surface of the inner wall of the moving groove 401, and two aligned clamping grooves 402 are a group. The moving assembly 4 further includes two clamping rods 403. By changing the cooperation between the two clamping rods 403 and the five groups of clamping grooves 402, the effect of adjusting the angle of the backrest 3 can be achieved. The opposite ends of the two clamping rods 403 are respectively slidably connected to the inner wall of one group of clamping grooves 402. The opposite ends of the two clamping rods 403 respectively penetrate the opposite sides of the moving block 404 and extend into the inside of the moving block 404.

[0024] As shown in Figure 4 and Figure 5As shown, the adjusting assembly 6 includes two passive plates 601. The passive plates 601 achieve the effect of controlling the clamping rod 403 by moving. The opposite sides of the two passive plates 601 are respectively fixedly connected to the opposite ends of the two clamping rods 403. Two connecting rods 603 are slidably connected to the inner walls of the two passive plates 601 in common. Springs 605 are sleeved on the rod walls of the two connecting rods 603. The adjusting assembly 6 further includes a pressing rod 606. One end of the pressing rod 606 penetrates through one side of the surface of the moving block 404 and the rod wall is slidably connected to the inner wall of the moving block 404. At the top and bottom of the end of the pressing rod 606 located inside the moving block 404, connecting plates 604 are fixedly connected. Two control blocks 602 are fixedly connected to one side of each of the two connecting plates 604. The control blocks 602 can achieve the effect of controlling the position between the two passive plates 601 by their own movement. One side of the upper two control blocks 602 is slidably connected to the top surface of one of the passive plates 601, and one side of the lower two control blocks 602 is slidably connected to the bottom surface of the other passive plate 601.

[0025] As Figure 5 shown, the limiting assembly 7 includes two limiting grooves 702. The two limiting grooves 702 are respectively opened on the opposite sides of the inner wall of the moving block 404. Two groups of limiting blocks 701 are slidably connected to the inner walls of the two limiting grooves 702. The limiting blocks 701 cooperate with the limiting grooves 702 to achieve the effect of limiting and supporting the two passive plates 601. The opposite sides of each group of limiting blocks 701 are respectively fixedly connected to the opposite sides of the corresponding passive plates 601.

[0026] As Figure 1 and Figure 2 shown, the supporting assembly 5 includes two groups of mounting grooves 501. The two groups of mounting grooves 501 are respectively opened on one side of the second seat cushion 2 and the backrest 3. Support legs 502 are rotatably connected to the inner walls of the two groups of mounting grooves 501. The support legs 502 can support the backrest 3 and the second seat cushion 2.

[0027] As Figure 4 shown, the four control blocks 602 and the two passive plates 601 are all trapezoidal. The inclined surfaces of the control blocks 602 are slidably connected to the inclined surfaces of the passive plates 601. Thus, as the control blocks 602 move, the passive plates 601 can change their positions.

[0028] Working principle of the utility model: When the sofa bed is in use, first press two pressing rods 606 simultaneously. The two pressing rods 606 drive two connecting plates 604 to move. When the two connecting rods 603 move, they drive their own two control blocks 602 to move. Thus, the two control blocks 602 move to the right, causing the two passive plates 601 to move towards the middle position simultaneously and driving the two clamping rods 403 to retract into the moving block 404 and compress the two springs 605, thereby releasing the limit between the moving block 404 and the moving groove 401. Then, while pushing the two moving blocks 404 to the right, hold the backrest 3 and lower it. By matching the five groups of clamping grooves 402 arranged inside the moving groove 401 with the two clamping rods 403, the effect of five - gear adjustment of the angle of the backrest 3 can be achieved. Then, push the moving block 404 to the rightmost side of the moving groove 401, and then release the two pressing rods 606. Thus, the two springs 605 extend, driving the two passive plates 601 to move upwards and downwards, causing the two clamping rods 403 to cooperate with the right - most group of clamping grooves 402. At this time, the backrest 3 and the first seat cushion 1 are in a horizontal state. Then, pull out the two support legs 502 located at the backrest 3 position, making the two support legs 502 contact the ground;

[0029] After the adjustment of the backrest 3 is completed, lift the second seat cushion 2 to make the second seat cushion 2 and the first seat cushion 1 in a horizontal state. Then, pull out the two support legs 502 located on the second seat cushion 2, making the two support legs 502 directly contact the ground, thereby supporting the second seat cushion 2. The original text highlights the innovative structure and does not elaborate too much on the prior art.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the utility model and are not used to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included within the protection scope of the utility model.

Claims

1. A folding sofa bed with a new structure, comprising a first seat cushion (1), a second seat cushion (2) and a backrest (3), characterized in that: One side of the second seat cushion (2) and the backrest (3) is rotatably connected to the opposite side of the first seat cushion (1), the bottom surface of the first seat cushion (1) is fixedly connected to two support plates (9), both sides of the surface of the first seat cushion (1) are fixedly connected to armrests (8), the second seat cushion (2) and one side of the backrest (3) are jointly provided with a support component (5), the two armrests (8) are provided with a movable component (4) capable of changing the angle of the backrest (3) by movement, the movable component (4) is provided with an adjustment component (6) capable of adjusting the moving position of the movable component (4), and the movable component (4) is provided with a limit component (7) capable of limiting the position of the movable component (4).

2. The folding sofa bed with a new structure according to claim 1, characterized in that: The moving assembly (4) comprises a moving groove (401) provided on one side of the armrest (8); a moving block (404) is slidably connected to the inner wall of the moving groove (401); a linkage rod (405) is rotatably connected to one side of the moving block (404); an end of the linkage rod (405) away from the moving block (404) is rotatably connected to one side of the backrest (3); five clamping grooves (402) are evenly provided on the top and bottom surfaces of the inner wall of the moving groove (401); the clamping groove (402) located on the top surface of the inner wall of the moving groove (401) is aligned with the clamping groove (402) located on the bottom surface of the inner wall of the moving groove (401); and the two aligned clamping grooves (402) form a group.

3. A folding sofa bed with a new structure according to claim 2, characterized in that: The moving assembly (4) further comprises two clamping rods (403), wherein opposite ends of the two clamping rods (403) are respectively slidably connected to the inner wall of one set of clamping grooves (402), and opposite ends of the two clamping rods (403) respectively penetrate the opposite side of the moving block (404) and extend into the interior of the moving block (404).

4. A folding sofa bed with a new structure according to claim 3, characterized in that: The adjustment assembly (6) comprises two passive plates (601), opposite sides of the two passive plates (601) are respectively fixedly connected to opposite ends of two clamping rods (403), inner walls of the two passive plates (601) are slidably connected to two connecting rods (603), and springs (605) are sleeved on the rod walls of the two connecting rods (603).

5. A folding sofa bed with a novel structure according to claim 4, characterized in that: The adjustment component (6) further comprises a pressing rod (606), one end of which passes through one side of the surface of the moving block (404) and the rod wall is slidably connected to the inner wall of the moving block (404); the top and bottom of one end of the pressing rod (606) located inside the moving block (404) are fixedly connected to connecting plates (604); one side of the two connecting plates (604) is fixedly connected to two control blocks (602); one side of the two upper control blocks (602) is slidably connected to the top surface of one of the passive plates (601); and one side of the two lower control blocks (602) is slidably connected to the bottom surface of the other passive plate (601).

6. A folding sofa bed with a novel structure according to claim 4, characterized in that: The limiting component (7) includes two limiting grooves (702), the two limiting grooves (702) are respectively opened on the opposite sides of the inner wall of the moving block (404), and two groups of limiting blocks (701) are slidably connected to the inner walls of the two limiting grooves (702), and the opposite sides of each group of limiting blocks (701) are respectively fixedly connected to the opposite sides of the corresponding passive plate (601).

7. A folding sofa bed with a new structure according to claim 1, characterized in that: The supporting component (5) includes two groups of mounting grooves (501), the two groups of mounting grooves (501) are respectively opened on one side of the second seat cushion (2) and the backrest (3), and supporting legs (502) are rotatably connected to the inner walls of the two groups of mounting grooves (501).

8. A folding sofa bed with a new structure according to claim 5, characterized in that: The four control blocks (602) and the two passive plates (601) are all trapezoidal, and the inclined surfaces of the control blocks (602) are slidably connected to the inclined surfaces of the passive plates (601).

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