Sofa stretching and lifting mechanism

Abstract

The utility model relates to the technical field of sofas, and discloses a sofa stretching and lifting mechanism which comprises a mounting plate, a first rotating rod and supporting rods, hexagon socket screws penetrate through the four corners of the bottom end of the mounting plate in a threaded mode, supporting blocks are welded to the two ends of the bottom of the mounting plate, and round holes are formed in one sides of the two supporting blocks; and the two ends of the first rotating rod rotationally penetrate through the two round holes correspondingly, limiting bearings for limiting the first rotating rod are arranged in the two round holes correspondingly, a mounting base is welded to the middle of the bottom end of the mounting plate, and a driving assembly for driving the first rotating rod to rotate is arranged in the mounting base. According to the scheme, the driving assembly drives the first rotating rod to rotate, the first rotating rod rotates anticlockwise through the two movable rods, the two movable rods are matched to drive the supporting rod to rotate anticlockwise with the first rotating rod as the axis, and the supporting rod drives the connecting assembly to rotate anticlockwise in the rotating process; meanwhile, the extension plate of the sofa is lifted by utilizing the connecting assembly.

Description

Technical Field

[0001] The present application relates to the technical field of sofas, and in particular to a sofa extension and lifting mechanism. Background Art

[0002] With the development of science and technology and the improvement of living standards, more and more electric furniture has entered our daily life, especially electric sofas. Electric sofas are mainly electric sofas, which are a kind of sofas. By controlling the button of the electric sofa, the motor can be driven to drive the lifting mechanism inside the sofa to move, and then the backrest or the extension close to the user's legs can be moved, so that the sofa changes from an L shape to a flat shape, so that the user can half lie on the sofa, which makes the user more convenient and comfortable when using it. However, the existing lifting mechanism has a complex structure and is mostly made of many movable rods that are hinged. This will undoubtedly increase the complexity of the movement of the lifting mechanism and make it easy to be damaged. Utility Model Content

[0003] In order to solve the problem that the existing lifting mechanism mentioned above is complex in structure, it is usually formed by hingedly connecting many connecting rods, which will undoubtedly increase the complexity of the movement of the lifting mechanism and make it easy to be damaged. The present application provides a sofa extension lifting mechanism.

[0004] The sofa extension and lifting mechanism provided in this application adopts the following technical solution:

[0005] A sofa extension and lifting mechanism comprises a mounting plate, a first rotating rod and a supporting rod, the four corners of the bottom end of the mounting plate are threaded with hexagon socket bolts, both ends of the bottom of the mounting plate are welded with supporting blocks, one side of the two supporting blocks is provided with a circular hole, the two ends of the first rotating rod respectively rotate through the two circular holes, the inside of the two circular holes are provided with a limit bearing for limiting the first rotating rod, a mounting seat is welded to the middle part of the bottom end of the mounting plate, the inside of the mounting seat is provided with a driving component for driving the first rotating rod to rotate, the outer surface of the first rotating rod is fixedly sleeved with two movable rods, one side of the two movable rods is provided with a limiting hole, the two ends of the supporting rod are respectively fixedly inserted in the inside of the two limiting holes, and the outer surface of the supporting rod is movably provided with a connecting component.

[0006] Preferably, the driving assembly consists of a dual-axis motor, a first gear ring and a second gear ring. The dual-axis motor is fixedly mounted inside the mounting seat. There are two first gear rings and two second gear rings. The two first gear rings are respectively fixedly mounted on the ends of the two power shafts of the dual-axis motor, and the two second gear rings are respectively fixedly mounted on the two ends of the first rotating rod, and the two second gear rings are respectively meshed and connected with the two first gear rings.

[0007] Preferably, the outer bearing rings of the two limit bearings are fixedly connected to the inner walls of the two circular holes respectively, and the inner bearing rings of the two limit bearings are fixedly sleeved on the outer surface of the first rotating rod.

[0008] Preferably, the connecting assembly consists of a connecting plate, a connecting block and an external hexagonal bolt. There are two connecting blocks, both of which are fixedly sleeved on the outer surface of the support rod, and both ends of the connecting block are welded to one side of the connecting plate. There are several external hexagonal bolts, and all of the several external hexagonal bolts are threaded through the connecting plate.

[0009] Preferably, the four corners at the bottom end of the mounting plate are threaded with hexagon socket bolts.

[0010] In summary, the present application includes the following beneficial technical effects: the first rotating rod is driven to rotate by the driving assembly, the first rotating rod rotates counterclockwise through the two movable rods, the two movable rods cooperate to drive the support rod to rotate counterclockwise with the first rotating rod as the axis, and the support rod drives the connecting assembly to rotate counterclockwise during the rotation process, and at the same time, the connecting assembly is used to lift the extension plate of the sofa, thereby achieving the purpose of lifting the sofa; compared with the prior art, the structure is simple and problems will not easily occur during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application.

[0012] Figure 2 It is a schematic diagram of the structure of the embodiment of the application when viewed from above.

[0013] Figure 3 It is a schematic diagram of the local structure of an embodiment of the application.

[0014] Explanation of the accompanying drawings: 11. Mounting plate; 12. Support block; 21. First rotating rod; 22. Movable rod; 23. Support rod; 3. Limit bearing; 4. Mounting seat; 5. Drive assembly; 51. Dual-axis motor; 52. First gear ring; 53. Second gear ring; 6. Connecting assembly; 61. Connecting plate; 62. Connecting block; 63. External hexagonal bolt; 7. Internal hexagonal bolt. DETAILED DESCRIPTION

[0015] The following is combined with Figure 1-3 This application is described in further detail.

[0016] The present application embodiment discloses a sofa extension and lifting mechanism, referring to Figure 1 Figure 2 and Figure 3, including a mounting plate 11, a first rotating rod 21 and a supporting rod 23. The four corners of the bottom end of the mounting plate 11 are threaded with hexagon socket bolts 7, and the mounting plate 11 can be fixedly installed on the bottom end of the sofa body by four hexagon socket bolts 7. Support blocks 12 are welded at both ends of the bottom of the mounting plate 11. Round holes are opened on one side of the two supporting blocks 12. The two ends of the first rotating rod 21 rotate through the two round holes respectively. The inside of the two round holes is provided with a limiting bearing 3 for limiting the first rotating rod 21, so that the first rotating rod 21 can only rotate. A mounting seat 4 is welded at the middle of the bottom end of the mounting plate 11. The inside of the mounting seat 4 is provided with a driving component 5 for driving the first rotating rod 21 to rotate. The outer surface of the first rotating rod 21 is fixedly sleeved with two movable The movable rod 22, one side of the two movable rods 22 is provided with a limiting hole, and the two ends of the support rod 23 are fixedly inserted in the two limiting holes respectively. The two movable rods 22 can connect the support rod 23 and the first rotating rod 21. The outer surface of the support rod 23 is movably provided with a connecting component 6, and the connecting component 6 is fixedly connected to the extension plate of the sofa. When the driving component 5 drives the first rotating rod 21 to rotate, the first rotating rod 21 rotates counterclockwise through the two movable rods 22, and the two movable rods 22 cooperate to drive the support rod 23 to rotate counterclockwise with the first rotating rod 21 as the axis. During the rotation process, the support rod 23 drives the connecting component 6 to rotate counterclockwise, and at the same time, the connecting component 6 is used to lift the extension plate of the sofa, thereby achieving the purpose of extending the sofa.

[0017] Reference Figure 1 and Figure 2 The driving assembly 5 is composed of a dual-axis motor 51, a first gear ring 52 and a second gear ring 53. The dual-axis motor 51 is fixedly mounted inside the mounting seat 4. The mounting seat 4 can support the dual-axis motor 51 at the bottom of the mounting plate 11. There are two first gear rings 52 and two second gear rings 53. The two first gear rings 52 are respectively fixedly mounted on the ends of the two power shafts of the dual-axis motor 51, and the two second gear rings 53 are respectively fixedly mounted on the two ends of the first rotating rod 21. The two second gear rings 53 are respectively meshed and connected with the two first gear rings 52. When the two power shafts of the dual-axis motor 51 drive the two first gear rings 52 to rotate, the two first gear rings 52 drive the two second gear rings 53 to rotate, thereby driving the first rotating rod 21 to rotate.

[0018] Reference Figure 1 and Figure 2 The outer bearing rings of the two limit bearings 3 are fixedly connected to the inner walls of the two circular holes respectively, and the inner bearing rings of the two limit bearings 3 are fixedly sleeved on the outer surface of the first rotating rod 21. The two limit bearings 3 cooperate to enable the first rotating rod 21 to only rotate.

[0019] Reference Figure 2 and Figure 3The connecting assembly 6 is composed of a connecting plate 61, a connecting block 62 and an external hexagonal bolt 63. There are two connecting blocks 62, both of which are fixedly sleeved on the outer surface of the support rod 23. Both ends of the connecting block 62 are welded to one side of the connecting plate 61. There are several external hexagonal bolts 63, and several external hexagonal bolts 63 are threaded through the connecting plate 61. Several connecting assemblies 6 are threadedly connected to the sofa extension plate, thereby achieving the purpose of connecting the sofa extension plate to the support rod 23.

[0020] The implementation principle of a sofa extension and lifting mechanism in an embodiment of the present application is as follows: when in use, when the two power shafts of the dual-axis motor 51 drive the two first gear rings 52 to rotate, the two first gear rings 52 drive the two second gear rings 53 to rotate, thereby driving the first rotating rod 21 to rotate, and at the same time, the first rotating rod 21 rotates counterclockwise through the two movable rods 22, and the two movable rods 22 cooperate to drive the support rod 23 to rotate counterclockwise with the first rotating rod 21 as the axis, and the support rod 23 drives the connecting component 6 to rotate counterclockwise during the rotation process, and at the same time, the connecting component 6 is used to lift the extension plate of the sofa, thereby achieving the purpose of lifting the sofa.

[0021] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0022] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0023] Finally: 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 in the protection scope of the present utility model.

[0024] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sofa extension and lifting mechanism, comprising a mounting plate (11), a first rotating rod (21) and a supporting rod (23), characterized in that: The four corners at the bottom end of the mounting plate (11) are threaded with hexagon socket bolts (7), and support blocks (12) are welded at both ends of the bottom of the mounting plate (11). One side of the two support blocks (12) is provided with a circular hole, and the two ends of the first rotating rod (21) are respectively rotated to pass through the two circular holes, and the inside of the two circular holes is provided with a limit bearing (3) for limiting the first rotating rod (21), and a mounting seat (4) is welded at the middle part of the bottom end of the mounting plate (11), and the inside of the mounting seat (4) is provided with a driving component (5) for driving the first rotating rod (21) to rotate, and the outer surface of the first rotating rod (21) is fixedly sleeved with two movable rods (22), and one side of the two movable rods (22) is provided with a limit hole, and the two ends of the support rod (23) are respectively fixedly inserted in the inside of the two limit holes, and the outer surface of the support rod (23) is movably provided with a connecting component (6).

2. The sofa extension and lifting mechanism according to claim 1, characterized in that: The driving assembly (5) is composed of a dual-axis motor (51), a first gear ring (52) and a second gear ring (53); the dual-axis motor (51) is fixedly mounted inside the mounting seat (4); there are two first gear rings (52) and two second gear rings (53); the two first gear rings (52) are respectively fixedly mounted on the ends of the two power shafts of the dual-axis motor (51); the two second gear rings (53) are respectively fixedly mounted on the two ends of the first rotating rod (21); and the two second gear rings (53) are respectively meshed and connected with the two first gear rings (52).

3. The sofa extension and lifting mechanism according to claim 1, characterized in that: The outer bearing rings of the two limit bearings (3) are respectively fixedly connected to the inner walls of the two circular holes, and the inner bearing rings of the two limit bearings (3) are both fixedly sleeved on the outer surface of the first rotating rod (21).

4. The sofa extension and lifting mechanism according to claim 1, characterized in that: The connection assembly (6) is composed of a connection plate (61), a connection block (62) and an external hexagonal bolt (63). There are two connection blocks (62). The two connection blocks (62) are fixedly sleeved on the outer surface of the support rod (23). Both ends of the connection block (62) are welded to one side of the connection plate (61). There are a plurality of external hexagonal bolts (63), and the plurality of external hexagonal bolts (63) are threadedly penetrated through the connection plate (61).

5. The sofa extension and lifting mechanism according to claim 1, characterized in that: The four corners at the bottom end of the mounting plate (11) are all threaded with hexagon socket bolts (7).

Images