Deformable sofa chair

Abstract

The utility model relates to a sofa chair, in particular to a deformable sofa chair, which comprises a first frame and the like, supporting frames are arranged on the two symmetrical sides of the first frame, a second frame is hinged to one end of the other two sides of the first frame, a third frame is hinged to the end, away from the first frame, of the second frame, supporting legs are rotationally arranged on the second frame and the third frame, and the supporting legs support the sofa chair when the sofa chair is unfolded. And when the sofa chair is folded, the first clamping block is inserted and matched with a limiting hole formed in the side wall of the third frame. Through the deformation cooperation of the first frame, the second frame and the third frame, the convenient conversion function of the sofa bed and the sofa chair is realized according to the use requirements of a user, so that the use requirements of the user in different use scenes are met, and the space utilization rate is improved.

Description

Technical Field

[0001] This utility model relates to a sofa chair, and more particularly to a deformable sofa chair. Background Technology

[0002] In large cities with high housing prices, small apartments are becoming increasingly popular among urban residents due to their compact space and efficient use of every inch of area. Given their limited interior space, how to rationally plan the space to maximize the effectiveness of the limited area is an important consideration.

[0003] For small apartments, due to limited usable space, sofas and beds, as indispensable furniture in home life, occupy a large amount of space, thus making full use of the space in small apartments; in addition, when it is necessary to take a nap, the sofa is not long enough, resulting in poor quality of nap when sitting.

[0004] Therefore, it is necessary to design a transformable sofa chair to maximize space utilization and meet the multifunctional needs of users. Utility Model Content

[0005] Technical solution: A deformable sofa chair includes a first frame, with support frames provided on both symmetrical sides of the first frame, a second frame hinged to one end of the other two sides of the first frame, and a third frame hinged to the end of the second frame away from the first frame. Support legs are rotatably provided on the second and third frames to provide support when the sofa chair is unfolded. A first locking block is slidably provided on the support frame. When the sofa chair is folded, the first locking block engages with a limiting hole opened on the side wall of the third frame.

[0006] Furthermore, it is particularly preferred that the upper end of the support frame away from the second frame is rotatably connected to a handrail via a rotating shaft, and the handrail is located above the support frame.

[0007] Furthermore, it is particularly preferred that the support frame is provided with a first guide rod, the first locking block is slidably disposed on the first guide rod and slides through the groove opened in the support frame, and a tension spring is provided between the first locking block and the support frame, the tension spring being wound around the first guide rod.

[0008] Furthermore, it is particularly preferred that the second frame and the third frame have a second locking block slidably disposed on the inner wall of the support foot by means of a compression spring. When the support foot is parallel to the second frame or the third frame, the second locking block is inserted into the slot opened on the support foot to limit the support foot.

[0009] Furthermore, it is particularly preferred that a second guide rod is provided on the rotating shaft, a right-angle connecting plate is slidably provided on the second guide rod, and a third locking block is provided at both ends of the right-angle connecting plate. The third locking block is inserted into the limiting groove opened on the handrail to limit the handrail. A compression spring is provided between the connecting plate and the end of the second guide rod, and the compression spring is wound around the second guide rod.

[0010] Furthermore, it is particularly preferable that the height of the support legs is the same as the height of the support frame.

[0011] Furthermore, it is particularly preferred that the length of the armrest is less than or equal to the width of the first frame.

[0012] Furthermore, it is particularly preferred that the length of the third frame is greater than the length of the first frame, which in turn is greater than the length of the second frame.

[0013] In summary, the beneficial effects of this utility model are as follows: when the first frame, second frame, and third frame are on the same plane and the two armrests are arranged parallel to each other on both sides of the first frame, the sofa chair can be used as a sofa bed; after the second frame rotates upward at a certain angle with its hinge point with the first frame as the center, and the third frame rotates downward with its hinge point with the second frame as the center, and is connected to the support frame through the cooperation of the first locking block and the limiting hole, the second frame and the third frame cooperate to form the backrest of the sofa chair, thereby transforming the sofa bed into a sofa chair; thus realizing the convenient conversion function of sofa bed and sofa chair according to the user's needs, thereby meeting the user's needs in different usage scenarios and improving the utilization rate of space. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention in its unfolded state.

[0015] Figure 2 This is a partial three-dimensional schematic diagram of the present invention in its unfolded state from a first-view perspective.

[0016] Figure 3 This utility model Figure 2 Enlarged diagram of point A.

[0017] Figure 4 This is a three-dimensional structural cross-sectional view of the first frame of this utility model.

[0018] Figure 5 This utility model Figure 4 Enlarged diagram of point B.

[0019] Figure 6 This is a partial three-dimensional structural diagram of the present invention from a second perspective when it is unfolded.

[0020] Figure 7 This utility model Figure 6Enlarged diagram of point C.

[0021] Figure 8 This is a three-dimensional structural diagram of the present invention in its folded state.

[0022] The above-mentioned attached drawings include the following reference numerals: 1. Support frame, 2. Armrest, 201. Rotating shaft, 3. Sofa cushion, 4. Backrest, 5. Third frame, 6. First frame, 601. Second frame, 7. First locking block, 701. Tension spring, 702. First guide rod, 8. Support foot, 801. Second locking block, 802. Compression spring one, 803. Slot, 9. Connecting plate, 901. Third locking block, 902. Compression spring two, 903. Second guide rod, 10. Limiting hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0024] Example: A deformable sofa chair, such as Figure 1 , Figure 2 , Figure 3 and Figure 8 As shown, the sofa includes a first frame 6, with support frames 1 on both the front and rear sides. The support frames 1 provide support when the sofa is in use. A second frame 601 is hinged to the right end of the first frame 6, and a third frame 5 is hinged to the end of the second frame 601 furthest from the first frame 6. The hinge connecting the first frame 6 and the second frame 601 is located at the upper edges of both frames, while the hinge connecting the second frame 601 and the third frame 5 is located at their lower edges. This up-and-down arrangement allows the right end of the second frame 601 to tilt upwards and the right end of the third frame 5 to move downwards and connect with the support frames 1, thus forming a structure with the second frame 601, the third frame 5, and the first frame 6 as shown in the diagram. Figure 8 In the sofa chair configuration shown, support legs 8 are rotatably mounted on the second frame 601 and the third frame 5. The height of the support legs 8 is the same as the height of the support frame 1. The support legs 8 provide support when the sofa chair is unfolded. A first locking block 7 is slidably mounted on the support frame 1. When the sofa chair is folded up, the first locking block 7 engages with the limiting hole 10 opened on the side wall of the third frame 5 (e.g., Figure 8As shown), a first guide rod 702 is provided on the outer wall of the support frame 1. A first locking block 7 is slidably disposed on the first guide rod 702 and slides through a groove opened in the support frame 1. A tension spring 701 is provided between the first locking block 7 and the support frame 1. The tension spring 701 is wound around the first guide rod 702. The tension spring 701 pulls the first locking block 7 towards the inside of the support frame 1. When the sofa chair is folded into a sofa chair (as shown), the first locking block 7 is pulled towards the inside of the support frame 1. Figure 8 As shown, when in use, the support frame 1 is connected to the third frame 5 by inserting the first card block 7 into the limiting hole 10.

[0025] like Figure 1 As shown, the upper end of the support frame 1 away from the second frame 601 is rotatably connected to a handrail 2 via a rotating shaft 201. The handrail 2 is located above the support frame 1, and the length of the handrail 2 is less than or equal to the width of the first frame 6, thus avoiding interference between the handrail 2 and the other handrail 2 after rotation.

[0026] like Figure 4 and Figure 5 As shown, the second frame 601 and the third frame 5 are provided with rectangular grooves on the inner walls of the support legs 8. A compression spring 802 is connected to the inner wall of the rectangular groove, and a second locking block 801 is connected to the end of the compression spring 802. The second locking block 801 can slide within the rectangular groove. The initial state of the compression spring 802 is as follows. Figure 5 As shown, under the tension of the compression spring 802, the second locking block 801 protrudes from the inner wall of the second frame 601 or the third frame 5. When the support leg 8 rotates 90 degrees into the gap inside the second frame 601 or the third frame 5, the support leg 8 is parallel to the second frame 601 or the third frame 5. The support leg 8 is limited by inserting the second locking block 801 into the slot 803 opened on the support leg 8, thereby preventing the support leg 8 from affecting the use of the sofa chair after it is folded.

[0027] like Figure 6 and Figure 7As shown, a second guide rod 903 is provided at the lower end of the rotating shaft 201. A right-angle connecting plate 9 is slidably mounted on the second guide rod 903. A third locking block 901 is provided at both ends of the top of the right-angle connecting plate 9. The third locking block 901 is inserted into the limiting groove opened at the bottom of the handrail 2 to limit the handrail 2. A compression spring 902 is provided between the end of the connecting plate 9 and the second guide rod 903. The compression spring 902 is wound around the second guide rod 903. When the connecting plate 9 is pressed down, the connecting plate 9 drives the third locking block. 901 moves down and compresses and deforms the second compression spring 902. After the third locking block 901 moves down away from the limiting groove at the bottom of the armrest 2, the limiting of the armrest 2 by the third locking block 901 is released. At this time, the armrest 2 can rotate 270 degrees through the rotating shaft 201. After the armrest 2 rotates 270 degrees through the rotating shaft 201, another third locking block 901 at the top of the connecting plate 9 is inserted into the limiting groove of the armrest 2 to limit the armrest 2. Thus, the position of the armrest can be flexibly adjusted according to the changes in the use of the sofa chair.

[0028] The length of the third frame 5 is greater than the length of the first frame 6, which is greater than the length of the second frame 601. This arrangement enables the first frame 6 to serve as the seat of the sofa chair, the second frame 601 to serve as the backrest of the sofa chair, and the third frame 5 to be connected to the support frame 1 to provide support for the second frame 601.

[0029] When the sofa chair needs to be transformed into a sofa bed, the support leg 8 is rotated until it is perpendicular to the second frame 601 or the third frame 5. The first frame 6, the second frame 601, and the third frame 5 then connect to form a plane. The sofa cushion 3 is placed on the unfolded plane of the first frame 6, the second frame 601, and the third frame 5. One armrest 2 is then rotated 270 degrees around its rotation axis 201 connected to the support frame 1, so that the extended ends of the two armrests 2 are perpendicular to each other, presenting a shape as shown in the image. Figure 1In the indicated state, the cushion 4 is placed on the sofa cushion 3, and the sofa chair can be used as a sofa bed. To fold the sofa chair from a sofa bed back into a sofa chair, firstly, the armrest 2 on the side perpendicular to the width of the first frame 6 is rotated 270 degrees to return to its original position, so that the two armrests 2 are parallel to each other on both sides of the first frame 6. The third locking block 901 then holds the armrest 2 in place through the cooperation of the compression spring 902 and the connecting plate 9. Next, the support leg 8 is rotated upwards by 90 degrees to overlap with the inner wall of the second frame 601 or the third frame. Under the action of the compression spring 802, it is inserted into the slot 803 through the second locking block 801. The support foot 8 is fixed in place by means of the following method: then the second frame 601 is lifted upwards, and the second frame 601 rotates counterclockwise around its hinge point with the first frame 6, with the end of the second frame 601 away from the first frame 6 tilting upwards. The third frame 5 then rotates clockwise around its connection point with the second frame 601, with the end of the third frame 5 away from the second frame 601 moving downwards until the limiting hole 10 is directly opposite the first locking block 7. Under the action of the tension spring 701, the first locking block 7 is inserted into the limiting hole 10, thereby connecting the third frame 5 to the support frame 1 through the first locking block 7, forming a structure as shown in the figure. Figure 8 As shown in the diagram, the second frame 601 forms the backrest of the sofa chair, and the third frame 5 serves as the support for the backrest, thus enabling the sofa bed to transform into a sofa chair.

[0030] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A deformable sofa chair, comprising a first frame (6), wherein support frames (1) are provided on both symmetrical sides of the first frame (6), characterized in that, The second frame (601) is hinged to one end of the other two sides of the first frame (6). The third frame (5) is hinged to the end of the second frame (601) away from the first frame (6). Support legs (8) are rotatably provided on the second frame (601) and the third frame (5). The support legs (8) provide support when the sofa chair is unfolded. The first locking block (7) is slidably provided on the support frame (1). When the sofa chair is folded up, the first locking block (7) is inserted into the limiting hole (10) opened on the side wall of the third frame (5).

2. A deformable sofa chair as described in claim 1, characterized in that, The upper end of the support frame (1) away from the second frame (601) is rotatably connected to a handrail (2) via a rotating shaft (201), and the handrail (2) is located above the support frame (1).

3. A deformable sofa chair as described in claim 2, characterized in that, A first guide rod (702) is provided on the support frame (1). A first locking block (7) is slidably disposed on the first guide rod (702) and slides through the groove opened in the support frame (1). A tension spring (701) is provided between the first locking block (7) and the support frame (1). The tension spring (701) is wound around the first guide rod (702).

4. A deformable sofa chair as described in claim 3, characterized in that, The second frame (601) and the third frame (5) are provided with a second locking block (801) which is slidably provided on the inner wall of the support foot (8) by a compression spring (802). When the support foot (8) is parallel to the second frame (601) or the third frame (5), the second locking block (801) is inserted into the slot (803) opened on the support foot (8) to limit the support foot (8).

5. A deformable sofa chair as described in claim 4, characterized in that, A second guide rod (903) is provided on the rotating shaft (201). A right-angle connecting plate (9) is slidably provided on the second guide rod (903). A third locking block (901) is provided at both ends of the right-angle connecting plate (9). The third locking block (901) is inserted into the limiting groove opened on the handrail (2) to limit the handrail (2). A compression spring (902) is provided between the end of the connecting plate (9) and the second guide rod (903). The compression spring (902) is wound around the second guide rod (903).

6. A deformable sofa chair as described in claim 5, characterized in that, The height of the support leg (8) is the same as the height of the support frame (1).

7. A deformable sofa chair as described in claim 6, characterized in that, The length of the handrail (2) is less than or equal to the width of the first frame (6).

8. A deformable sofa chair as described in claim 7, characterized in that, The length of the third frame (5) is greater than the length of the first frame (6) and the length of the second frame (601).

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