A new type of sofa telescopic frame

Abstract

This utility model provides a novel sofa telescopic frame, relating to the field of sofa telescopic frame technology. It includes a base and a telescopic functional frame slidably connected to the base via a sliding component. The telescopic functional frame slides relative to the base to extend or retract. The telescopic functional frame includes a seat cushion mounting frame, a backrest assembly, and a drive assembly. One end of the seat cushion mounting frame is hinged to the backrest assembly, and the seat cushion mounting frame is also connected to and driven by the drive assembly. The drive assembly drives the seat cushion mounting frame to slide relative to the base, causing the backrest assembly to tilt backward and extend. The advantage of this utility model is that, through ingenious mechanical design, it achieves multiple functions of sofa frame movement and extension, while ensuring the smoothness and safety of the telescopic movement and reducing production costs.

Description

Technical Field

[0001] This utility model relates to the field of sofa telescopic frame technology, and in particular to a novel sofa telescopic frame. Background Technology

[0002] Traditional sofas are relatively simple in function, typically only providing basic sitting and reclining capabilities. With people's increasing pursuit of quality of life, the demand for multifunctional sofas is growing. For example, massage sofas and functional sofas are gradually gaining popularity in the market. However, existing sofa extension frame designs often suffer from the following problems: firstly, low functional integration, unable to simultaneously realize multiple functions such as seat cushions, backrests, and leg extensions; secondly, complex drive systems, resulting in high costs; and thirdly, the extension and retraction movements are not smooth enough, prone to jamming or over-extension. Therefore, developing a new type of sofa extension frame to solve these problems is of significant practical importance. Utility Model Content

[0003] This utility model overcomes the shortcomings of the prior art and provides a novel sofa telescopic frame.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] A novel sofa telescopic frame includes a base and a telescopic functional frame slidably connected to the base via a sliding component, wherein the telescopic functional frame slides relative to the base to form an extended or retracted shape;

[0006] The telescopic frame includes a seat cushion mounting frame, a backrest assembly, and a drive assembly. One end of the seat cushion mounting frame is hinged to the backrest assembly, and the seat cushion mounting frame is also connected to the drive assembly and driven by the drive assembly.

[0007] The drive component drives the seat cushion mounting bracket to slide relative to the base, causing the backrest component to tilt back and unfold.

[0008] Preferably, the other end of the seat cushion mounting bracket is hinged to the leg extension assembly, and the drive assembly drives the seat cushion mounting bracket to slide relative to the base, while simultaneously causing the leg extension assembly to slide relative to the base.

[0009] The drive assembly includes a first drive member and a second drive member. The first drive member is connected to the seat cushion mounting frame. The first drive member drives the seat cushion mounting frame to slide, thereby causing the leg extension assembly to slide relative to the base and causing the backrest assembly to tilt back and unfold.

[0010] The second drive member is connected to the leg extension assembly and drives the leg extension assembly to contract or extend.

[0011] Preferably, the base includes two relatively parallel side plates and a base connecting rod connecting the two side plates, and the first driving member is mounted on the base connecting rod and connected to the seat cushion mounting bracket through the first driving connecting rod;

[0012] The second drive component is mounted on the first drive connecting rod and connected to the leg extension assembly via the second drive connecting rod;

[0013] The first driving member drives the first driving connecting rod and the seat cushion mounting bracket to move, and at the same time drives the second driving member and the leg extension assembly to move synchronously. The second driving member drives the second driving connecting rod to drive the leg extension assembly to contract or extend.

[0014] Preferably, the leg extension assembly includes foot connecting rods that are rotatably connected together in an alternating manner. The second driving member is hinged to the second driving connecting rod. The second driving member drives the second driving connecting rod to translate while simultaneously driving the second driving connecting rod to rotate, thereby rotating and causing the foot connecting rod to retract or extend.

[0015] Preferably, the second drive connecting rod is provided with a support foot, and the support foot is provided with a roller.

[0016] Preferably, the foot connecting rod includes a first telescopic rod, a second telescopic rod, a third telescopic rod, a fourth telescopic rod, a fifth telescopic rod, a sixth telescopic rod, and a foot pedal connector that are rotatably connected together in an alternating manner;

[0017] The second drive connecting rod is fixedly connected to the middle position of the first telescopic rod and moves synchronously with the second drive connecting rod.

[0018] Preferably, the first driving component includes a first driving motor, a first sliding rod, and a slider. The upper side of the slider is connected to the first driving connecting rod, and the first driving motor drives the slider to move the first driving connecting rod on the first sliding rod.

[0019] The second driving component includes a second driving motor and a telescopic rod. The output end of the telescopic rod is hinged to the second driving connecting rod. The second driving motor drives the telescopic rod to extend and retract, thereby causing the second driving connecting rod to translate and rotate.

[0020] Preferably, the seat cushion mounting bracket, the backrest assembly, and the leg extension assembly are all symmetrically mounted on the inner side of the side panel;

[0021] The inner side of the side panel is provided with a slide rail, and the sliding component includes a roller. The roller is connected to the seat cushion mounting bracket and is rotatably placed in the slide rail.

[0022] Preferably, a limiting plate is provided on the inner side of the side plate located outside the slide rail, and the rolling wheels are slidably connected to the slide rail on both sides of the limiting plate. The limiting plate restricts the sliding distance of the rolling wheels and the seat cushion mounting bracket.

[0023] Preferably, the backrest assembly includes a first connecting rod and a second connecting rod. The lower end of the first connecting rod is hinged to the seat cushion mounting bracket, and the upper end of the first connecting rod is provided with a backrest connecting part. The upper end of the second connecting rod is hinged to the first connecting rod, and the connection point is located on the lower side of the backrest connecting part. The second connecting rod is hinged to the base connecting rod.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] A new type of sofa telescopic frame, through ingenious mechanical design, realizes multiple functions such as seat cushion, backrest and leg extension, while ensuring the smoothness and safety of the telescopic movement and reducing production costs. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 This is a schematic diagram of the first structure of the retractable sofa frame described in this utility model;

[0028] Figure 2 This is a schematic diagram of the second structure of the retractable sofa frame described in this utility model;

[0029] Figure 3 This is a schematic diagram of the third structure of the retractable sofa frame described in this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the sliding component described in this utility model;

[0031] Figure 5 This is a schematic diagram of the first structure of the present invention, showing the first driving component driving the deployment.

[0032] Figure 6 This is a schematic diagram of the second structure of the present invention, which is driven and deployed by the first driving component.

[0033] Figure 7 This is a schematic diagram of the structure of the present invention, showing the first driving member and the second driving member working together to unfold.

[0034] In the diagram: 1-Base; 2-Sliding assembly; 3-Telescopic frame; 4-Seat cushion mounting frame; 5-Backrest assembly; 6-Leg extension assembly; 7-Drive assembly; 8-First drive component; 9-Second drive component; 10-First drive connecting rod; 11-Second drive connecting rod; 12-Supporting foot; 13-Roller;

[0035] 101-Side plate; 102-Base connecting rod; 103-Slide rail; 104-Limiting plate;

[0036] 201-Rolling wheel;

[0037] 501 - First connecting rod; 502 - Second connecting rod; 503 - Backrest connecting part;

[0038] 601 - Foot connecting rod; 602 - First telescopic rod; 603 - Second telescopic rod; 604 - Third telescopic rod; 605 - Fourth telescopic rod; 606 - Fifth telescopic rod; 607 - Sixth telescopic rod; 608 - Foot pedal connector;

[0039] 801 - First drive motor; 802 - First sliding rod; 803 - Slider;

[0040] 901 - Second drive motor; 902 - Telescopic rod. Detailed Implementation

[0041] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0042] like Figures 1 to 4 As shown in the figure, this figure is a retracted state diagram of a novel sofa telescopic frame of the present invention, including a base 1 and a telescopic functional frame 3 that is slidably connected to the base 1 via a sliding component 2. The telescopic functional frame 3 slides relative to the base 1 to form an extended or retracted state.

[0043] The telescopic frame 3 includes a seat cushion mounting frame 4, a backrest assembly 5, a leg extension assembly 6, and a drive assembly 7. One end of the seat cushion mounting frame 4 is hinged to the backrest assembly 5, and the other end is hinged to the leg extension assembly 6. The seat cushion mounting frame 4 is also connected to and driven by the drive assembly 7.

[0044] The drive assembly 7 drives the seat cushion mounting bracket 4 to slide relative to the base 1, which in turn causes the leg extension assembly 6 to slide relative to the base 1, and causes the backrest assembly 5 to tilt back and unfold.

[0045] Specifically, the drive assembly 7 includes a first drive member 8 and a second drive member 9. The first drive member 8 is connected to the seat cushion mounting frame 4. The first drive member 8 drives the seat cushion mounting frame 4 to slide, thereby causing the leg extension assembly 6 to slide relative to the base 1 and causing the backrest assembly 5 to tilt back and unfold.

[0046] The second drive unit 9 is connected to the leg extension assembly 6 and drives the leg extension assembly 6 to contract or extend.

[0047] The base 1 includes two relatively parallel side plates 101 and a base connecting rod 102 connecting the two side plates 101. The first driving component 8 is mounted on the base connecting rod 102 and connected to the seat cushion mounting bracket 4 through the first driving connecting rod 10.

[0048] The second drive component 9 is mounted on the first drive connecting rod 10 and connected to the leg extension assembly 6 via the second drive connecting rod 11;

[0049] The first driving component 8 drives the first driving connecting rod 10 and the seat cushion mounting bracket 4 to move, while simultaneously driving the second driving component 9 and the leg extension assembly 6 to move synchronously. The second driving component 9 drives the second driving connecting rod 11 to drive the leg extension assembly 6 to contract or extend.

[0050] Furthermore, the leg extension assembly 6 includes foot connecting rods 601 that are rotatably connected together in an alternating manner. The second drive member 9 is hinged to the second drive connecting rod 11. The second drive member 9 drives the second drive connecting rod 11 to translate while also driving the second drive connecting rod 11 to rotate, thereby rotating and causing the foot connecting rod 601 to retract or extend.

[0051] A support foot 12 is provided on the second drive connecting rod 11, and a roller 13 is provided on the support foot 12.

[0052] The foot connecting rod 601 includes a first telescopic rod 602, a second telescopic rod 603, a third telescopic rod 604, a fourth telescopic rod 605, a fifth telescopic rod 606, a sixth telescopic rod 607 and a foot pedal connector 608 that are rotatably connected together in an alternating manner.

[0053] The first telescopic rod 602 is fixedly connected to the second drive connecting rod 11 at its middle position and moves synchronously with the second drive connecting rod 11. The upper end of the first telescopic rod 602 is hinged to the seat mounting frame 4, and the lower end is hinged to the upper end of the third telescopic rod 604. The middle part of the third telescopic rod 604 is hinged to the middle part of the second telescopic rod 603, and the lower end is hinged to the upper end of the fourth telescopic rod 605. The upper end of the second telescopic rod 603 is hinged to the seat mounting frame 4, and the lower end is hinged to the upper end of the fifth telescopic rod 606. The middle part of the fourth telescopic rod 605 is hinged to the middle part of the fifth telescopic rod 606. The lower end of the fourth telescopic rod 605 is hinged to the upper end of the sixth telescopic rod 607. The lower end of the sixth telescopic rod 607 is hinged to the foot pedal connector 608. The lower end of the fifth telescopic rod 606 is hinged to the foot pedal connector 608.

[0054] like Figure 7 As shown, when the second drive connecting rod 11 is moved and rotated by the second drive member 9, the extension rods are extended in an arc-shaped linkage. At this time, the foot pedal connecting member 608 extends to the farthest point, making it convenient for people to place their feet when they are half-lying down.

[0055] Furthermore, the first driving component 8 includes a first driving motor 801, a first sliding rod 802 and a slider 803. The upper side of the slider 803 is connected to the first driving connecting rod 10. The first driving motor 801 drives the slider 803 to move the first driving connecting rod 10 on the first sliding rod 802.

[0056] The second driving component 9 includes a second driving motor 901 and a telescopic rod 902. The output end of the telescopic rod 902 is hinged to the second driving connecting rod 11. The second driving motor 901 drives the telescopic rod 902 to extend and retract, thereby causing the second driving connecting rod 11 to translate and rotate.

[0057] Furthermore, the seat cushion mounting bracket 4, the backrest assembly 5, and the leg extension assembly 6 are all symmetrically installed on the inside of the side panel 101.

[0058] The inner side of the side panel 101 is provided with a slide rail 103. The sliding component 2 includes a roller 201. The roller 201 is connected to the seat cushion mounting bracket 4 and is rotatably placed in the slide rail 103.

[0059] Furthermore, a limiting plate 104 is provided on the inner side of the side plate 101, located outside the slide rail 103. The rolling wheels 201 are slidably connected to the slide rails 103 on both sides of the limiting plate 104. The limiting plate 104 restricts the sliding distance of the rolling wheels 201 and the seat cushion mounting bracket 4.

[0060] Furthermore, the backrest assembly 5 includes a first connecting rod 501 and a second connecting rod 502. The lower end of the first connecting rod 501 is hinged to the seat cushion mounting bracket 4, and the upper end of the first connecting rod 501 is provided with a backrest connecting part 503. The upper end of the second connecting rod 502 is hinged to the first connecting rod 501, and the connection point is located on the lower side of the backrest connecting part 503. The second connecting rod 502 is hinged to the base connecting rod 102.

[0061] like Figure 6 As shown in the figure, this figure is an unfolded view of the first driving component 8 of this utility model under the driving action. The first driving motor 801 drives the slider 803 to drive the first driving connecting rod 10 to move on the first sliding rod 802. At the same time, it drives the seat cushion mounting frame 4 and the leg extension component 6 at the front end of the seat cushion mounting frame 4 to move synchronously, and at the same time drives the backrest component 5 at the rear end of the seat cushion mounting frame 4 to lie flat and unfold.

[0062] like Figure 7 As shown in the figure, this is an unfolded view of the present invention under the joint driving action of the first driving member 8 and the second driving member 9. After the backrest assembly 5 is fully unfolded, the first driving member 8 stops driving. At this time, the second driving motor 901 can be turned on to drive the telescopic rod 902 to extend and retract, thereby driving the second driving connecting rod 11 to translate and rotate. The second driving connecting rod 11 drives the first telescopic rod 602 to rotate, thereby driving the arc linkage between each extension rod to unfold. At this time, the foot pedal connecting member 608 extends to the farthest point, making it convenient for people to place their feet when they are half-lying down.

[0063] In addition, the second drive component 9 can be activated independently when the first drive component 8 is not activated, so that only the leg extension component 6 is deployed, separating the lying down and leg extension functions, allowing users to perform different operations according to their actual needs and meeting the different needs of different users.

[0064] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, 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 new sofa extension frame characterized by: It includes a base (1) and a telescopic functional frame (3) slidably connected to the base (1) via a sliding component (2), wherein the telescopic functional frame (3) slides relative to the base (1) to form an extended or retracted state; The telescopic frame (3) includes a seat cushion mounting frame (4), a backrest assembly (5) and a drive assembly (7). One end of the seat cushion mounting frame (4) is hinged to the backrest assembly (5), and the seat cushion mounting frame (4) is connected to the drive assembly (7) and driven by the drive assembly (7). The drive assembly (7) drives the seat cushion mounting bracket (4) to slide relative to the base (1), causing the backrest assembly (5) to tilt back and unfold.

2. A new sofa extension bracket according to claim 1, characterized in that: The other end of the seat mounting bracket (4) is hinged to the leg extension assembly (6). The drive assembly (7) drives the seat mounting bracket (4) to slide relative to the base (1), and at the same time drives the leg extension assembly (6) to slide relative to the base (1). The drive assembly (7) includes a first drive member (8) and a second drive member (9). The first drive member (8) is connected to the seat cushion mounting frame (4). The first drive member (8) drives the seat cushion mounting frame (4) to slide, thereby causing the leg extension assembly (6) to slide relative to the base (1) and causing the backrest assembly (5) to tilt back and unfold. The second drive member (9) is connected to the leg extension assembly (6) and drives the leg extension assembly (6) to contract or extend.

3. A novel sofa telescopic frame according to claim 2, characterized in that: The base (1) includes two relatively parallel side plates (101) and a base connecting rod (102) connecting the two side plates (101). The first driving member (8) is mounted on the base connecting rod (102) and connected to the seat cushion mounting bracket (4) through the first driving connecting rod (10). The second drive member (9) is mounted on the first drive connecting rod (10) and connected to the leg extension assembly (6) via the second drive connecting rod (11); The first driving member (8) drives the first driving connecting rod (10) and the seat cushion mounting bracket (4) to move, and at the same time drives the second driving member (9) and the leg extension assembly (6) to move synchronously. The second driving member (9) drives the second driving connecting rod (11) to drive the leg extension assembly (6) to contract or extend.

4. A novel sofa telescopic frame according to claim 3, characterized in that: The leg extension assembly (6) includes foot connecting rods (601) that are rotatably connected together. The second drive member (9) is hinged to the second drive connecting rod (11). The second drive member (9) drives the second drive connecting rod (11) to translate while also driving the second drive connecting rod (11) to rotate, thereby rotating and causing the foot connecting rod (601) to contract or extend.

5. A novel sofa telescopic frame according to claim 4, characterized in that: The second drive connecting rod (11) is provided with a support foot (12), and the support foot (12) is provided with a roller (13).

6. A novel sofa telescopic frame according to claim 4 or 5, characterized in that: The foot connecting rod (601) includes a first telescopic rod (602), a second telescopic rod (603), a third telescopic rod (604), a fourth telescopic rod (605), a fifth telescopic rod (606), a sixth telescopic rod (607), and a foot pedal connector (608) that are rotatably connected together in an alternating manner. The second drive connecting rod (11) is fixedly connected to the middle position of the first telescopic rod (602) and moves synchronously with the second drive connecting rod (11).

7. A novel sofa telescopic frame according to claim 4, characterized in that: The first driving component (8) includes a first driving motor (801), a first sliding rod (802) and a slider (803). The upper side of the slider (803) is connected to the first driving connecting rod (10). The first driving motor (801) drives the slider (803) to drive the first driving connecting rod (10) to translate on the first sliding rod (802). The second driving component (9) includes a second driving motor (901) and a telescopic rod (902). The output end of the telescopic rod (902) is hinged to the second driving connecting rod (11). The second driving motor (901) drives the telescopic rod (902) to extend and retract, thereby causing the second driving connecting rod (11) to translate and rotate.

8. A novel sofa telescopic frame according to claim 7, characterized in that: The seat cushion mounting bracket (4), the backrest assembly (5), and the leg extension assembly (6) are all symmetrically installed on the inner side of the side panel (101); The inner side of the side plate (101) is provided with a slide rail (103), and the sliding component (2) includes a roller (201). The roller (201) is connected to the seat cushion mounting bracket (4) and is rotatably placed in the slide rail (103).

9. A novel sofa telescopic frame according to claim 8, characterized in that: The inner side of the side plate (101) is provided with a limiting plate (104) located outside the slide rail (103). The rolling wheel (201) is slidably connected to the slide rail (103) on both sides of the limiting plate (104). The limiting plate (104) restricts the sliding distance of the rolling wheel (201) and the seat cushion mounting bracket (4).

10. A novel sofa telescopic frame according to claim 8, characterized in that: The backrest assembly (5) includes a first connecting rod (501) and a second connecting rod (502). The lower end of the first connecting rod (501) is hinged to the seat cushion mounting bracket (4). The upper end of the first connecting rod (501) is provided with a backrest connecting part (503). The upper end of the second connecting rod (502) is hinged to the first connecting rod (501) and the connection point is located below the backrest connecting part (503). The second connecting rod (502) is hinged to the base connecting rod (102).

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