Sofa iron stand structure and sofa

Abstract

The utility model relates to the technical field of furniture, in particular to a sofa iron stand structure and a sofa, the sofa iron stand structure comprises a seat frame, a pedal telescopic assembly is telescopically arranged at the front end of the seat frame, a backrest assembly is movably arranged at the rear end of the seat frame, the pedal telescopic assembly comprises a first connecting rod, and a slow moving connecting rod is arranged at the tail end of the first connecting rod; the other end of the slow-moving connecting rod is connected to the backrest assembly so as to be used for being in transmission with the backrest assembly when the pedal telescopic assembly stretches out and draws back, a slow-moving sliding groove is formed in the slow-moving connecting rod, and the tail end of the first connecting rod is arranged in the slow-moving sliding groove in a sliding mode. And the tail end of the first connecting rod slides to a preset position in the slow moving sliding groove and then is transmitted to the slow moving connecting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to an iron frame structure of a sofa and a sofa. Background Art

[0002] At present, with the improvement of the domestic productivity level and the development of the social and economic level, people's living standards are getting higher and higher, and the requirements for furniture are also getting higher and higher. Sofas, rocking chairs, seats and the like in furniture can be seen everywhere. Some sofas can not only extend the footrest, but also raise or lower the backrest.

[0003] However, the sofa devices in the prior art usually have the following defects:

[0004] In the prior art, the footrest is usually set to be immediately linked with the backrest, that is, when the footrest extends or retracts, it will immediately drive the backrest to flip, and the two move simultaneously, which makes the backrest have no buffering time when flipping, thus affecting the experience of the user. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide an iron frame structure of a sofa and a sofa.

[0006] The utility model is realized by the following technical solutions.

[0007] An iron frame structure of a sofa includes a seat frame. A pedal telescopic assembly is telescopically arranged at the front end of the seat frame. A backrest assembly is movably arranged at the rear end of the seat frame. The pedal telescopic assembly includes a first connecting rod. A slow-moving connecting rod is arranged at the end of the first connecting rod. The other end of the slow-moving connecting rod is connected to the backrest assembly for driving the backrest assembly when the pedal telescopic assembly expands and contracts. A slow-moving sliding groove is formed in the slow-moving connecting rod. The end of the first connecting rod is slidably arranged in the slow-moving sliding groove so that the end of the first connecting rod slides to a preset position in the slow-moving sliding groove and then drives the slow-moving connecting rod.

[0008] As a further improvement of the utility model, a movable pin is arranged at the end of the first connecting rod. The movable pin is slidably arranged in the slow-moving sliding groove for abutting against the inner wall of the slow-moving sliding groove when the first connecting rod slides to a predetermined position, thereby driving the slow-moving connecting rod.

[0009] As a further improvement of the present utility model, the pedal telescopic assembly includes a second link and a third link. The head end of the first link is rotatably connected to the second link. One ends of the second link and the third link are both rotatably arranged on the seat frame. The free end of the second link is rotatably provided with a fourth link. The free end of the fourth link is rotatably provided with a pedal. The third link is rotatably provided with a fifth link. The fifth link is rotatably connected to the pedal. The middle part of the fourth link is rotatably connected to the third link.

[0010] As a further improvement of the present utility model, an intermediate cross bar is provided at one end of the first link 3 close to the second link. A driving mechanism is provided on the intermediate cross bar for driving the pedal telescopic assembly to expand and contract.

[0011] As a further improvement of the present utility model, the driving mechanism is a telescopic cylinder / a telescopic oil cylinder. One end of the telescopic cylinder / telescopic oil cylinder is hinged to the intermediate cross bar, and the other end of the telescopic cylinder / telescopic oil cylinder is hinged to the seat frame.

[0012] As a further improvement of the present utility model, a sixth link is rotatably provided at the end of the first link. The other end of the sixth link is hinged to the seat frame.

[0013] As a further improvement of the present utility model, an elastic member is provided between the sixth link and the seat frame.

[0014] As a further improvement of the present utility model, a stop member is provided on the seat frame for restricting the flipping angle of the backrest assembly when the backrest assembly flips.

[0015] Based on the same concept, the present utility model also discloses a sofa, including the sofa iron frame structure as described above.

[0016] The beneficial effects of the present utility model: In the present utility model patent, a slow-moving link is provided. The slow-moving link connects the pedal telescopic assembly and the backrest assembly, so that when the pedal extends or retracts, the backrest assembly can be driven to move. And a slow-moving chute is provided on the slow-moving link. The end of the first link is slidably arranged in the slow-moving chute. So that when the pedal telescopic assembly initially extends or contracts, the first link will first slide in the slow-moving chute. When the pedal telescopic assembly extends or contracts to a predetermined position (that is, at this time, the end of the first link 3 abuts against one end of the slow-moving chute), the backrest assembly will follow the pedal telescopic assembly to move. Thus, there is a certain time interval between the extension or contraction of the pedal telescopic assembly and the movement of the backrest assembly, thereby improving the user experience of the user. Description of the Drawings

[0017] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding of the object and advantages of the present invention, where:

[0018] Figure 1 is a schematic structural diagram of an embodiment of the present invention patent;

[0019] Figure 2 In the present invention patent corresponding to Figure 1 is a partial enlarged view of part A in

[0020] Figure 3 is a schematic side structure diagram of an embodiment of the present invention patent;

[0021] Figure 4 is a schematic diagram of the internal side structure in an embodiment of the present invention patent. Detailed implementation manners

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] The orientation terms such as up, down, left, right, front, back, front side, back side, top, bottom, etc. mentioned or possibly mentioned in this specification are defined relative to the structures shown in the respective drawings. The terms "inside" and "outside" respectively refer to the directions towards or away from the geometric center of a specific component. They are relative concepts and may therefore change accordingly depending on their different positions and different usage states. Therefore, these or other orientation terms should not be construed as restrictive terms.

[0024] Referring to Figures 1 to 4 what is disclosed in the embodiments of the present invention is:

[0025] A sofa, comprising a sofa iron frame structure, the sofa iron frame structure includes a seat frame 1, a pedal telescopic assembly is telescopically arranged at the front end of the seat frame 1, a backrest assembly 2 is movably arranged at the rear end of the seat frame 1, the pedal telescopic assembly includes a first connecting rod 3, a slow-moving connecting rod 4 is arranged at the end of the first connecting rod 3, and the other end of the slow-moving connecting rod 4 is connected to the backrest assembly 2 for driving the backrest assembly 2 when the pedal telescopic assembly is telescoping. A slow-moving sliding groove 5 is formed on the slow-moving connecting rod 4, and the end of the first connecting rod 3 is slidably arranged in the slow-moving sliding groove 5 so that the end of the first connecting rod 3 slides to a preset position in the slow-moving sliding groove 5 and then drives the slow-moving connecting rod 4.

[0026] In this embodiment, a slow-moving connecting rod 4 is provided. The slow-moving connecting rod 4 connects the pedal telescopic assembly and the backrest assembly, so that when the pedal extends or retracts, the backrest assembly can be driven to move. A slow-moving sliding groove 5 is provided on the slow-moving connecting rod 4, and the end of the first connecting rod 3 is slidably arranged in the slow-moving sliding groove 5. Thus, when the pedal telescopic assembly starts to extend or contract initially, the first connecting rod 3 will first slide in the slow-moving sliding groove 5. When the pedal telescopic assembly extends or contracts to a predetermined position (that is, at this time, the end of the first connecting rod 3 abuts against one end of the slow-moving sliding groove 5), the backrest assembly will then follow the pedal telescopic assembly to move. Therefore, there is a certain time interval between the extension or contraction of the pedal telescopic assembly and the movement of the backrest assembly, thereby improving the user experience of the user.

[0027] Specifically, in this embodiment, a movable pin 6 is provided at the end of the first connecting rod 3. The movable pin 6 is slidably arranged in the slow-moving sliding groove 5 for abutting against the inner wall of the slow-moving sliding groove 5 when the first connecting rod 3 slides to a predetermined position, thereby transmitting power to the slow-moving connecting rod 4.

[0028] In this embodiment, the pedal telescopic assembly includes a second connecting rod 7 and a third connecting rod 8. The first end of the first connecting rod 3 is rotatably connected to the second connecting rod 7. One ends of the second connecting rod 7 and the third connecting rod 8 are rotatably arranged on the seat frame 1. The free end of the second connecting rod 7 is rotatably provided with a fourth connecting rod 9. The free end of the fourth connecting rod 9 is rotatably provided with a pedal 10. The third connecting rod 8 is rotatably provided with a fifth connecting rod 11. The fifth connecting rod 11 is rotatably connected to the pedal 10. The middle of the fourth connecting rod 9 is rotatably connected to the third connecting rod 8.

[0029] A middle cross bar 12 is provided at one end of the first connecting rod 3 close to the second connecting rod 7, and a driving mechanism 13 is provided on the middle cross bar 12 for driving the pedal telescopic assembly to expand and contract.

[0030] The driving mechanism 13 is a telescopic cylinder / a telescopic oil cylinder. One end of the telescopic cylinder / telescopic oil cylinder is hinged to the middle cross bar 12, and the other end of the telescopic cylinder / telescopic oil cylinder is hinged to the seat frame 1.

[0031] The end of the first connecting rod 3 is rotatably provided with a sixth connecting rod 14, and the other end of the sixth connecting rod 14 is hinged to the seat frame 1.

[0032] An elastic member (not shown in the figure) is provided between the sixth connecting rod 14 and the seat frame 1. The elastic member is a compression spring. Both ends of the compression spring are respectively connected to the sixth connecting rod 14 and the seat frame 1 (as shown in the figure, connecting shafts 18 are provided on both the sixth connecting rod 14 and the seat frame 1, and both ends of the compression spring are respectively connected to the connecting shafts 18).

[0033] A stop member 15 is provided on the seat frame 1 for restricting the flipping angle of the backrest assembly 2 when the backrest assembly 2 flips; when the backrest assembly 2 flips to a preset angle, the lower end of the backrest assembly 2 will abut against the stop member 15, thereby restricting the further flipping of the backrest assembly 2.

[0034] Working principle:

[0035] In this embodiment, when it is necessary to control the extension of the pedal 10, first control the drive mechanism 13 to extend, so that the intermediate cross bar 12 moves outward (away from the side of the backrest assembly). The two ends of the intermediate cross bar 12 are respectively connected to the first link 3, thereby driving the first link 3 to move outward. At this time, the end of the first link 3 is connected to the second link 7 to drive the second link 7 to rotate around one end of its connecting seat frame 1. The other end of the second link 7 is rotatably connected to a fourth link 9, thereby driving the fourth link 9 to move. The middle of the fourth link 9 is hinged to a third link 8 to drive the third link 8 to move. Finally, the pedal 10 is driven to extend.

[0036] During the initial outward movement of the first link 3, the movable pin 6 provided on the other end of the first link 3 first moves in the slow-moving chute 5. When the first link 3 moves to a preset position, at this time, the movable pin 6 abuts against one end of the slow-moving chute 5, and then the backrest assembly will follow the first link 3 to move. Thus, there is a certain time interval between the extension or contraction of the pedal telescopic assembly and the movement of the backrest assembly, thereby improving the user experience.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sofa iron frame structure, including a seat frame (1), a pedal telescopic assembly is telescopically arranged at the front end of the seat frame (1), and a backrest assembly (2) is movably arranged at the rear end of the seat frame (1), characterized in that: The pedal telescopic assembly includes a first connecting rod (3). A slow-moving connecting rod (4) is provided at the end of the first connecting rod (3). The other end of the slow-moving connecting rod (4) is connected to the backrest assembly (2) for driving the backrest assembly (2) when the pedal telescopic assembly expands and contracts. A slow-moving sliding groove (5) is formed in the slow-moving connecting rod (4). The end of the first connecting rod (3) is slidably disposed in the slow-moving sliding groove (5) so that the end of the first connecting rod (3) drives the slow-moving connecting rod (4) after sliding to a preset position in the slow-moving sliding groove (5).

2. The iron frame structure of a sofa according to claim 1, characterized in that: An active pin (6) is provided at the end of the first connecting rod (3). The active pin (6) is slidably disposed in the slow-moving sliding groove (5) for abutting against the inner wall of the slow-moving sliding groove (5) when the first connecting rod (3) slides to a predetermined position, thereby driving the slow-moving connecting rod (4).

3. A sofa iron frame structure according to claim 1, characterized in that: The pedal telescopic assembly includes a second connecting rod (7) and a third connecting rod (8). The head end of the first connecting rod (3) is rotatably connected to the second connecting rod (7). One ends of the second connecting rod (7) and the third connecting rod (8) are rotatably disposed on the seat frame (1). A fourth connecting rod (9) is rotatably provided at the free end of the second connecting rod (7). A pedal (10) is rotatably provided at the free end of the fourth connecting rod (9). A fifth connecting rod (11) is rotatably provided on the third connecting rod (8). The fifth connecting rod (11) is rotatably connected to the pedal (10). The middle of the fourth connecting rod (9) is rotatably connected to the third connecting rod (8).

4. A sofa iron frame structure according to claim 3, characterized in that: An intermediate cross bar (12) is provided at one end of the first connecting rod (3) close to the second connecting rod (7). A driving mechanism (13) is provided on the intermediate cross bar (12) for driving the pedal telescopic assembly to expand and contract.

5. The sofa iron frame structure according to claim 4, characterized in that: The driving mechanism (13) is a telescopic air cylinder / a telescopic oil cylinder. One end of the telescopic air cylinder / telescopic oil cylinder is hinged to the intermediate cross bar (12), and the other end of the telescopic air cylinder / telescopic oil cylinder is hinged to the seat frame (1).

6. The sofa iron frame structure according to claim 3, characterized in that: A sixth connecting rod (14) is rotatably provided at the end of the first connecting rod (3). The other end of the sixth connecting rod (14) is hinged to the seat frame (1).

7. A sofa iron frame structure according to claim 6, characterized in that: An elastic member is provided between the sixth connecting rod (14) and the seat frame (1).

8. A sofa iron frame structure according to claim 1, characterized in that: A stop member (15) is provided on the seat frame (1) for restricting the flipping angle of the backrest assembly (2) when the backrest assembly (2) flips.

9. A sofa, characterized in that: It includes the sofa iron frame structure according to any one of claims 1-8.

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